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453b0e0cd972787f62dd22c0d3fee9dbe212bdf5
harbour-core/harbour/source/rdd/dbffpt/dbffpt1.c
Przemyslaw Czerpak 64f97582d9 2008-09-13 18:49 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbpp.h
  * harbour/include/hbvm.h
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbtrace.h
  * harbour/include/hbapilng.h
  * harbour/include/hbinit.h
  * harbour/source/rtl/langapi.c
  * harbour/source/pp/ppcore.c
  * harbour/source/pp/hbpp.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/hvm.c
  * harbour/source/common/hbver.c
  * harbour/source/common/hbtrace.c
  * harbour/source/common/expropt2.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/hbident.c
  * harbour/source/compiler/hbfunchk.c
    * changed some declarations from 'char *' to 'const char *' and
      fixed casting for some more pedantic compilers

  * harbour/source/pp/ppcore.c
    ! fixed one typo which could cause memory leak and even GPF

  * harbour/common.mak
  * harbour/source/vm/Makefile
  * harbour/source/rtl/Makefile
  - harbour/source/rtl/set.c
  + harbour/source/vm/set.c
  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    * moved from RTL to HVM
    * eliminated hb_set global structure
    * moved set structure to HVM stack
    + added internal function hb_setClone() which is used to create
      copy of SET structure for child threads
    * hidden HB_SET_STRUCT declaration - 3-rd part code must not access it
      directly. Dedicated hb_set*() functions should be used instead.
    + added new function:
         BOOL hb_setSetItem( HB_set_enum set_specifier, PHB_ITEM pItem )
      which allow to change some set by 3-rd party code.
      TODO: not all SETs can be changed yet - if someone have a while
            then please add code for missing ones.

  * harbour/include/set.ch
  * harbour/include/hbset.h
    + added _SET_CODEPAGE which works like _SET_LANGUAGE giving common
      interface

  * harbour/include/hbsetup.h
    + added HB_CODEPAGE_DEFAULT which works like HB_LANG_DEFAULT

  * harbour/source/vm/hvm.c
    ! fixed builds which uses non EN lang or code page modules
      by forcing linking the chosen ones

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/include/hbapicdp.h
  * harbour/source/rtl/cdpapi.c
    - removed global code page variable: hb_cdp_page and moved
      code page settings to HVM stack
    + added new function hb_cdpID() which returns current code page
      character ID
    + added new functions hb_vmCDP() and hb_vmSetCDP() to get/set
      active for given thread code page structure

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/include/hbapilng.h
  * harbour/source/rtl/langapi.c
    + moved lang setting to HVM stack
    + added new functions hb_vmLang() and hb_vmSetLang() to get/set
      active for given thread language module

  * harbour/include/hbvmpub.h
  * harbour/include/hbstack.h
  * harbour/include/hbapi.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/dynsym.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/memvars.c
    * changed memvar handles for HB_HANDLE to void * which is directly
      casted to PHB_ITEM - new memvar references
    * changed HB_DYNS declarations for MT mode. In MT mode HB_DYNS does
      not contain area and memvar handles which are moved to thread
      local HVM stack
    + added array for thread local memvar and area handles to HVM stack
    % eliminated global continues array with all memvars and detached locals
    % changed HB_IT_MEMVAR to use pointers to HB_ITEM directly - it resolve
      synchronization problems in MT mode and should also improve the speed
      and reduce memory usage. It should be well visible in applications which
      uses lot of detached locals.
    - removed hb_memvarsInit() and hb_memvarsFree() - they are not necessary
      now because we do not longer use array with all allocated memvars
      and detached local and private stack initialization is made
      automatically
    + added internal functions hb_dynsymGetMemvar()/hb_dynsymSetMemvar()
    + added hb_memvarGetValueBySym() for debugger
    * moved PRIVATE variable stack to HVM stack
    * eliminated all static variables in memvars module

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/rtl/fserror.c
    * moved IO errors to HVM stack
    + added special IO error handling which works without HVM stack
      It allows to use hb_fs*() functions without allocated stack
      by 3-rd party threads.

  * harbour/source/rtl/filesys.c
    * moved hb_fsCurDir() to HVM stack with special handling to work
      with HVM stack like IO errors

  * harbour/source/rdd/workarea.c
    * allocated RDD node array in bigger peaces to reduce later RT
      reallocations in MT mode. If user want to add dynamically more
      then 64 RDDs then it should synchronize this operation himself.

  * harbour/source/rdd/wacore.c
    * moved WA list, current WA, default RDD and neteer() flag to HVM stack

  * harbour/include/hbdefs.h
    - removed HB_HANDLE declaration

  * harbour/include/hbapi.h
    - removed HB_VALUE structure - it's not longer used due to different
      memvar handling
    * updated hb_struMemvar to new memvar handling
    * replaced hb_vmIsLocalRef() and hb_memvarsIsMemvarRef() with
      hb_vmIsStackRef() which respect multiple stack and new memvar
      and static structures and location in GC mark pass.

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/hvm.c
    + added support for thread specific data located on HVM stack
      Now it's possible to allocate static variables which are
      local to thread. Such variables are allocated on HVM stack
      and automatically destroyed. To declare new TSD variable use:
         HB_TSD_NEW( <name>, <size>, <init>, <destruct> )
      <name> - name of variable which holds TSD handler
      <size> - size of TSD are which has to be allocated
      <init> - init function, executed when new TSD is allocated by thread
               (thread access given TSD 1-st time). This function receives
               void * pointer to allocated area.
      <destruct> - destructor function executed when HVM stack is destroyed
      f.e.:
         static HB_TSD_NEW( s_scrData, sizeof( HB_SCRDATA ),
                            NULL, hb_xSaveRestRelease );
      To initialize dynamically allocated TSD variable use:
         HB_TSD_INIT( <name>, <size>, <init>, <destruct> )
      Pointer to TSD can be accessed using hb_stackGetTSD( &<name> )
      where <name> is name of variable which holds TSD handler, f.e.:
         PHB_SCRDATA pScrData = ( PHB_SCRDATA ) hb_stackGetTSD( &s_scrData );
      See source/rtl/xsavescr.c as an example
      It's also possible to test if data has been already allocated for
      current thread by:
         hb_stackTestTSD( &<name> ) => pData
      it works like hb_stackGetTSD() but return NULL if current thread data
      has not been allocated yet.

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    * changed hb_stack location to thread local storage in MT mode
    + added functions and macros to access/assign new HVM stack members
    + changed garbage collection mark functions to work with multiple
      stacks, thread local static and memvar variables

  * harbour/source/rtl/xsavescr.c
    * use TSD data for screen buffer to make __XSAVESCREEN()/__XRESTSCREEN()
      thread independent

  * harbour/source/rtl/idle.c
    * use TSD data for idle task settings and codeblocks
    - removed hb_idleShutDown() - it's not longer necessary

  * harbour/source/rtl/setkey.c
    * use TSD data for allocated keys to make SETKEY() thread independent

  * harbour/source/rtl/math.c
    * moved math error handler, math error block, math error mode and
      math error structure to TSD

  * harbour/source/rtl/errorapi.c
    * moved error handler, error block, error launch counter and DOS error
      value to TSD

  * harbour/source/rtl/inkey.c
    * moved inkey "before" and "after" blocks to TSD

  * harbour/source/rdd/hsx/hsx.c
    * moved HSX handles array to TSD

  * harbour/include/hbapigt.h
  * harbour/source/rtl/console.c
    - removed hb_setkeyInit() and hb_setkeyExit() - they are not longer
      necessary, allocated resources will be freed by TSD destructor
      function

  * harbour/include/hbapi.h
  * harbour/source/rtl/console.c
    * removed hb_conXSaveRestRelease() - it's not longer necessary,
      allocated resources will be freed by TSD destructor function

  * harbour/source/vm/macro.c
    * moved s_macroFlags to TSD

  * harbour/source/rtl/accept.c
    * moved accept buffer to TSD

  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbxvm.h
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hbopt.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/vm/hvm.c
    + added new PCODE HB_P_THREADSTATICS
    + added support for static variables which are local to thread:
         THREAD STATIC <varname [:= <exp>], ...>
      They work like normal static variables but each thread operates
      on its own copy.
    * added protection against possible double call to hb_xfree()
      It can happen due to wrong marking expressions as used by bison
      and executing destructors after our free code when syntax error
      appear.

  * harbour/source/rtl/perfuncs.prg
  * harbour/source/rtl/menuto.prg
  * harbour/source/rtl/getlist.prg
  * harbour/source/rtl/readvar.prg
  * harbour/source/rtl/text.prg
    * use THREAD STATIC variables to make above code MT safe

  * harbour/include/hbgtcore.h
  * harbour/source/rtl/hbgtcore.c
    + added hb_gt_BaseFree() which will release current GT pointer
      locked by hb_gt_Base() function. This function will be used
      to optional automatic GT access synchronization when threads
      share the same GT.

  * harbour/source/rtl/gtapi.c
  * harbour/source/rtl/inkeyapi.c
  * harbour/source/rtl/mouseapi.c
  * harbour/contrib/hbct/ctwin.c
    * free GT pointer by hb_gt_BaseFree()
      TODO: CTWIN is not MT safe yet - it will be updated together
            with core GT when we add multi window interface for
            thread with own console window.

  * harbour/bin/hb-func.sh
  * harbour/config/linux/gcc.cf
    + added rt lib to Linux builds

  * harbour/bin/postinst.sh
    * create MT safe version of FM stat library: fmmt

  * harbour/bin/pack_src.sh
    + added support for ZIP packing

  * harbour/include/hbapi.h
  * harbour/include/hbvm.h
  * harbour/source/vm/hvm.c
    + added hb_vmThreadInit()/hb_vmThreadQuit() functions - they initialize
      HVM for calling thread so it can execute .prg code and call HVM
      functions. They can be used by 3-rd party code threads.
    + added hb_vmUnlock()/hb_vmLock() functions which informs that
      thread will not operate on HVM structures for some time allowing
      to execute single thread only processes like GC.
    + added hb_vmThreadQuitRequest() which sends stop request to given
       thread
    + added hb_vmWaitForThreads() which stops main thread execution waiting
      for other threads
    + added hb_vmSuspendThreads() and hb_vmResumeThreads() used be GC
      to stop all HVM threads before mark/swap scan
    + added linked list of HVM stacks
    + added hb_vmTerminateThreads() used by main HVM thread in QUIT state
    * moved EXIT procedures execution from QUIT request to HVM QUIT state
      in MT mode. It may effects some non structural code which tries to
      access private variables in EXIT functions but it's much cleaner
      and understandable for user. Please remember that we guaranties
      that ALWAYS code in BEGIN SEQUENCE is _always_ executed even after
      HVM QUIT request just like destructs. Personally I think that we
      should move EXIT procedures execution also in ST mode.
    * changed startup and cleanup code for new internal structures
    * changes startup and cleanup code for MT mode
    % removed some redundant HB_ITEM type settings
    ! eliminated non MT safe code which was using reference counters
      without protection

  * harbour/common.mak
  * harbour/source/vm/Makefile
  + harbour/include/hbthread.h
  + harbour/source/vm/thread.c
    + added C level functions to manage threads and synchronization objects
      See hbthread.h for detail description. They are based on PTHREAD API
      and PTHREAD documentation can be used as reference. I intentionally
      keep this list small for easier multiplatform porting.
      Now they have been implemented for PTHREADS (POSIX threads supported by
      many different OSes), MS-Win32/64 and OS2. The OS2 version is not tested
      at all. I do not even know if it can be compiled so please make tests.
      I used Internet resources and some part of xHarbour code as documentation
      for OS2 MT API. It should be quite easy to add other platforms if necessary.
      Harbour core code needs non recursive mutexes, conditional variables and
      TLS for one pointer. If platforms does not support conditional variables
      (f.e. MS-Win or OS2) then they can be emulated using multistate semaphores.
    + added .prg functions to manage threads and synchronization objects:
         hb_threadStart( <@sStart()> | <bStart> [, <params,...> ] ) -> <pThID>
         hb_threadJoin( <pThID> [, @<xRetCode> ] ) -> <lOK>
         hb_threadDetach( <pThID> ) -> <lOK>
         hb_threadQuitRequest( <pThID> ) -> <lOK>
         hb_threadWaitForAll() -> NIL
         hb_mutexCreate() -> <pMtx>
         hb_mutexLock( <pMtx> [, <nTimeOut> ] ) -> <lLocked>
         hb_mutexUnlock( <pMtx> ) -> <lOK>
         hb_mutexNotify( <pMtx> [, <xVal>] ) -> NIL
         hb_mutexNotifyAll( <pMtx> [, <xVal>] ) -> NIL
         hb_mutexSubscribe( <pMtx>, [ <nTimeOut> ] [, @<xSubscribed> ] ) -> <lSubscribed>
         hb_mutexSubscribeNow( <pMtx>, [ <nTimeOut> ] [, @<xSubscribed> ] ) -> <lSubscribed>
      The function list should give similar to xHarbour API but they are not exactly
      the same and except of hb_mutex*() functions which should replicate xHarbour behavior.

  + harbour/source/vm/vmmt
  + harbour/source/vm/vmmt/Makefile
    + added hbvmmt library to GNU make builds.
      Non GNU make builds should be updated.

  * harbour/contrib/hbct/pos1.c
  * harbour/contrib/gtwvg/gtwvg.c
  * harbour/contrib/rddads/ads1.c
  * harbour/contrib/hbmisc/spd.c
  * harbour/contrib/hbbmcdx/bmdbfcdx.c
  * harbour/contrib/examples/rdddbt/dbfdbt1.c
  * harbour/source/vm/runner.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/hvm.c
  * harbour/source/rtl/console.c
  * harbour/source/rtl/strcase.c
  * harbour/source/rtl/spfiles.c
  * harbour/source/rtl/defpath.c
  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/dateshb.c
  * harbour/source/rtl/mlcfunc.c
  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/is.c
  * harbour/source/rtl/setcolor.c
  * harbour/source/rtl/errorint.c
  * harbour/source/rtl/transfrm.c
  * harbour/source/rtl/dates.c
  * harbour/source/rtl/filesys.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtwin/gtwin.c
  * harbour/source/rtl/gtwvt/gtwvt.c
  * harbour/source/rtl/gtxwc/gtxwc.c
  * harbour/source/rtl/gttrm/gttrm.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtcgi/gtcgi.c
  * harbour/source/rtl/gtcrs/gtcrs.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtsln/gtsln.h
  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/sdf1.c
  * harbour/source/rdd/delim1.c
  * harbour/source/rdd/dbcmd.c
  * harbour/source/rdd/hbdbsort.c
  * harbour/source/rdd/workarea.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/hsx/hsx.c
  * harbour/source/rdd/hbsix/sxfname.c
    * use API functions instead of direct accessing to hb_cdp_page or hb_set

  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/fssize.c
  * harbour/source/rtl/hbffind.c
  * harbour/source/rtl/filesys.c
    * encapsulate potentially slow IO operation inside
      hb_vmUnlock()/hb_vmLock() calls to allow other thread GC
      activation

  * harbour/contrib/hbnf/fttext.c
    ! fixed casting

  * harbour/contrib/gtwvg/gtwvg.h
    - removed #include <comctl32.h> - my MinGW and MinGW/CE instalations do
      not have them. If it exists in some newer ones then it has to be
      covered by #if version checking.

  * harbour/source/vm/dynsym.c
    - removed hb_dynsymLog() and hb_dynsymMemvarHandle()
    * modified code to be MT safe and improved speed of some operations
    * added MUEXT protection for global dynamic table access

  * harbour/include/hbapi.h
  * harbour/source/vm/garbage.c
    * changed to work with MT HVM
    * changed to work with new memvar structures and thread local static and
      memvar variables
    * added MUEXT protection for linked block lists
    + added parameter to hb_gcCollectAll() which will force GC activation
      in MT mode by temporary suspending all executed threads.
    + added logical parameter to HB_GCALL() functions which is passed to
      hb_gcCollectAll()

  * harbour/source/vm/fm.c
    * added MUEXT protection for FM statistic module
    * added MT protection for reference counters. For platforms
      which supports atomic incrmenetation/decrementation (f.e.
      Interlocked*() functions in MS-Win) such operations are
      used. For other it's MUTEX protection. It gives MT safe
      readonly access for HVM complex variables without user
      synchronization. The MUTEX protection can cause some speed
      overhead so it's good to define MT safe version of
      HB_ATOM_INC()/HB_ATOM_DEC() in hbthread.h if given platform
      has them. Now they are defined only for Windows. For other
      platforms We can define can define them in assembler for some
      most popular CPUs in the future.

  * harbour/source/vm/classes.c
    * changed class definition array. Now it keeps pointers to class
      structures.
    * In MT mode allocated at HVM startup big enough array for class
      definitions to avoid later RT reallocations. It effectively eliminates
      MUTEX synchronization for class structure access.
    * protect by MUTEX code for new class creation

  * harbour/source/debug/dbgentry.c
    * eliminated hbvmopt.h and direct accessing to HVM structures

  * harbour/source/rtl/gtclip.c
    * protect with MUTEX access to internal clipboard data

  * harbour/source/rdd/nulsys/nulsys.c
    + added hb_rddCloseAll()

  + harbour/tests/mt
  + harbour/tests/mt/mttest01.prg
  + harbour/tests/mt/mttest02.prg
  + harbour/tests/mt/mttest03.prg
  + harbour/tests/mt/mttest04.prg
  + harbour/tests/mt/mttest05.prg
  + harbour/tests/mt/mttest06.prg
  + harbour/tests/mt/mttest07.prg
    + added some demonstration/test small MT programs written
      using Harbour language. Some of them can be also compiled
      by xHarbour but xHarbour does not pass any of my tests in
      real multi-CPU machine so do not expect they will work
      correctly.

   Harbour threads needs OS threads support. Each Harbour thread is directly
   mapped to OS thread. It's not very efficient on some older system where
   cost of thread creation and/or task switching is very expensive but it
   should not be bigger problem for modern OS-es which can support threads
   in practice nearly in user space only.
   I haven't touched Harbour function calling convention which comes from
   Clipper. It means that we do not pass pointer to VM to each functions
   like CLIP or xBase++. To resolve the problem I have to use thread local
   storage (TLS) where such pointer is kept. If platform does not support
   TLS then it can be emulated by us. Anyhow the speed of accessing TLS
   data and extracting HB_STACK poitner is critical for performance.
   Some compilers depending on used hardware and OS give native support
   for TLS (f.e. __thread keyword in GCC/BCC or __declspec( thread ) in MSVC).
   This should give optimal performance. On other Harbour uses TLS functions
   like TlsGetValue() (MS-WIN) or pthread_getspecific() (PTHREAD) are used.
   OS2 gives quite interesting TLS functionality which seems to be quite fast
   though it will be interesting to know how it is iplemented internally for
   real multi CPU machines (if it depends on CPU exception then the
   performance will be bad). We need TLS only for one pointer to HB_STACK
   structure.
   I haven't added any tricks like HB_THREAD_STUB in xHarbour to reduce
   the cost of TLS access. If it will be necessary for some platform the we
   can add it.
   Except TLS Harbour threads needs OS support for non recursive mutexes or
   critical sections and conditional variables. If platforms does not support
   conditional variables (f.e. MS-Win or OS2) then they can be emulated using
   multistate semaphores. I intentionally didn't create code which may need
   recursive mutexes. The non recursive ones are often faster and some
   platforms may not support recursive mutexes so they will have to be
   emulated by us.
   Harbour uses reference counters for complex variables. It means that even
   readonly access to complex item causes internal write operations necessary
   to increment/decrement its reference counter. To make such readonly access
   MT safe we have to make incrementation and decrementation with result
   checking atomic. By default it's done by mutex inside vm/fm.c but some
   platforms have native support for atomic inc/dec operations, f.e. 
   Interlocked*() functions in MS-Win. If they are available then such
   functions should be used to not reduce the performance by mutex call
   very often used functions. For many CPUs it should be quite easy to
   implement such atomic inc/dec functionality in assembler. F.e. for
   GCC and x86@32 it may looks like:

      static __inline__ void hb_atomic_inc32( volatile int * p )
      {
         __asm__ __volatile__(
            "lock incl %0"
            :"=m" (*p) :"m" (*p)
         );
      }

      static __inline__ int hb_atomic_dec32( volatile int * p )
      {
         unsigned char c;
         __asm__ __volatile__(
            "lock decl %0"
            "sete %1"
            :"=m" (*p), "=qm" (c) :"m" (*p) : "memory"
         );
         return c == 0;
      }

   and then it's enough to define in hbthreads.h:
      #define HB_ATOM_INC( p )    hb_atomic_inc32( ( volatile int * ) p )
      #define HB_ATOM_DEC( p )    hb_atomic_dec32( ( volatile int * ) p )

   Probably I'll make it for some most popular CPUs in the future.
   In Harbour each thread which wants to call HVM functions have to allocate
   it's own HVM stack. It's done hb_vmThreadInit(). The HVM stack is freed
   by calling hb_vmThreadQuit(). This functions can be called also by 3-rd
   party threads if they want to call HVM functions or execute .prg code.
   Calling HVM functions without allocated stack will cause GPF.
   I moved most of static variables to HVM stack to make them thread
   local. But some of them like FS errors have their own alternative
   copy which is used when thread does not allocate HVM stack. It allows
   to use hb_fs*() functions without HVM stack but programmer have to
   know that error codes return by hb_fs*Error() functions can be
   overwritten by other threads which also didn't allocated HVM stack.
   To execute garbage collector scan and mark pass it's necessary to
   stop other HVM threads. Otherwise the scan may give false results.
   It's also possible to not stop threads but protect with mutex all
   operations on GC items but it will probably cause performance reduction
   and will force some other modifications. Maybe I'll implement it
   in the future.
   I didn't use any OS level thread KILL or CANCEL calls. All HVM threads
   have to be cleanly removed without any resource leaks.
   QUIT command terminate only calling thread. If main (startup) HVM
   thread call QUIT then it sends QUIT request to all existing threads.
   In QUIT state ALWAYS statements and destructors are executed.
   New thread is created by:
      hb_threadStart( <@sStart()> | <bStart> [, <params,...> ] ) -> <pThID>
   The returned value is a pointer to internal thread structure which
   can be used in JOIN or DETACH operations. Each thread should be Joined
   or DETACHED to avoid resource leaks. If programmer does not store
   <pThID> or all instances of <pThID> are destroyed then thread is
   automatically detached. I do not know clear method of thread detaching
   in OS2. If some OS2 users knows it then plase update vm/hbthread.c.
   When thread terminates then all locked by this thread mutexes are
   released.
   Each thread uses its own memvars (PRIVATEs and PUBLICs) and work areas.
   When new thread is created then it inherits from parent thread:
      - code page
      - language
      - SETs
      - default RDD
   error block is initialized to default value by calling ERRORSYS()
   and PUBLIC variable GetList := {} is created.
   The following objects are initialized to default value:
         - error block
         - math error handler and math error block
         - macro compiler features setting (hb_setMacro())
           or move them to SETs.
   We can think about inheriting them. It's also possible to add
   inheriting of all visible memvars but I do not know it's good
   idea.

   Compilation and linking:
   For MT mode HVM library should be compiled with HB_MT_VM macro.
   GNU make automatically creates hbvmmt library which should be
   linked with Harbour MT programs instead of hbvm.
   Non GNU make files should be updated.
   If given compiler support TLS then you can try to set HB_USE_TLS
   to force using native compiler TLS support. Now it's enabled by
   default only for BCC. For Linux and GCC builds it may depend also
   on used GLIBC version. In older system there is no TLS support
   at all or TLS works only for shared binaries so I haven't enabled
   it. If you will test some other compiler then please add default
   native TLS support for them in hbthread.h
   Users using hb* scripts can simply use -mt switch when they want
   to create MT program, f.e.:
      hbmk -n -w3 -es2 -mt mttest01.prg

   There are still some minor things which should be done but I'll
   do them later. Current state seems to be fully functional.
   The most important and still missing is our own file lock server
   for RDD synchronization in POSIX systems. Kernel internally
   recognize POSIX locks by PID and file i-node - not PID and file
   handle. It means that the same file open more then once by one
   process shares locks. Because POSIX locks can be overwritten
   then we do not have any synchronization between aliased workareas
   or threads using the same table in *nixes. We have to make
   synchronization ourselves. I'll create such lock server ASAP.

   Please test and enjoy using Harbour threads.
2008-09-13 16:53:45 +00:00

5151 lines
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/*
* $Id$
*/
/*
* xHarbour Project source code:
* DBFFPT RDD
*
* Copyright 2003 Przemyslaw Czerpak <druzus@acn.waw.pl>
* www - http://www.xharbour.org
*
* The SIX memo conversion algorithms and some piece of code taken from
* DBFCDX and DBFFPT
* Copyright 1999-2002 Bruno Cantero <bruno@issnet.net>
* Copyright 2000-2003 Horacio Roldan <harbour_ar@yahoo.com.ar> (portions)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#if defined( HB_FPT_NO_READLOCK )
# undef HB_MEMO_SAFELOCK
#else
/*# define HB_MEMO_SAFELOCK */
#endif
#include "hbapi.h"
#include "hbapiitm.h"
#include "hbinit.h"
#include "hbapierr.h"
#include "hbapilng.h"
#include "hbset.h"
#include "hbvm.h"
#include "hbdate.h"
#include "hbrddfpt.h"
#include "hbsxfunc.h"
#include "rddsys.ch"
#ifndef HB_CDP_SUPPORT_OFF
# include "hbapicdp.h"
#endif
static USHORT s_uiRddIdBLOB = ( USHORT ) -1;
static USHORT s_uiRddIdFPT = ( USHORT ) -1;
static RDDFUNCS fptSuper;
static const RDDFUNCS fptTable =
{
/* Movement and positioning methods */
( DBENTRYP_BP ) hb_fptBof,
( DBENTRYP_BP ) hb_fptEof,
( DBENTRYP_BP ) hb_fptFound,
( DBENTRYP_V ) hb_fptGoBottom,
( DBENTRYP_UL ) hb_fptGoTo,
( DBENTRYP_I ) hb_fptGoToId,
( DBENTRYP_V ) hb_fptGoTop,
( DBENTRYP_BIB ) hb_fptSeek,
( DBENTRYP_L ) hb_fptSkip,
( DBENTRYP_L ) hb_fptSkipFilter,
( DBENTRYP_L ) hb_fptSkipRaw,
/* Data management */
( DBENTRYP_VF ) hb_fptAddField,
( DBENTRYP_B ) hb_fptAppend,
( DBENTRYP_I ) hb_fptCreateFields,
( DBENTRYP_V ) hb_fptDeleteRec,
( DBENTRYP_BP ) hb_fptDeleted,
( DBENTRYP_SP ) hb_fptFieldCount,
( DBENTRYP_VF ) hb_fptFieldDisplay,
( DBENTRYP_SSI ) hb_fptFieldInfo,
( DBENTRYP_SVP ) hb_fptFieldName,
( DBENTRYP_V ) hb_fptFlush,
( DBENTRYP_PP ) hb_fptGetRec,
( DBENTRYP_SI ) hb_fptGetValue,
( DBENTRYP_SVL ) hb_fptGetVarLen,
( DBENTRYP_V ) hb_fptGoCold,
( DBENTRYP_V ) hb_fptGoHot,
( DBENTRYP_P ) hb_fptPutRec,
( DBENTRYP_SI ) hb_fptPutValue,
( DBENTRYP_V ) hb_fptRecall,
( DBENTRYP_ULP ) hb_fptRecCount,
( DBENTRYP_ISI ) hb_fptRecInfo,
( DBENTRYP_ULP ) hb_fptRecNo,
( DBENTRYP_I ) hb_fptRecId,
( DBENTRYP_S ) hb_fptSetFieldExtent,
/* WorkArea/Database management */
( DBENTRYP_P ) hb_fptAlias,
( DBENTRYP_V ) hb_fptClose,
( DBENTRYP_VP ) hb_fptCreate,
( DBENTRYP_SI ) hb_fptInfo,
( DBENTRYP_V ) hb_fptNewArea,
( DBENTRYP_VP ) hb_fptOpen,
( DBENTRYP_V ) hb_fptRelease,
( DBENTRYP_SP ) hb_fptStructSize,
( DBENTRYP_P ) hb_fptSysName,
( DBENTRYP_VEI ) hb_fptEval,
( DBENTRYP_V ) hb_fptPack,
( DBENTRYP_LSP ) hb_fptPackRec,
( DBENTRYP_VS ) hb_fptSort,
( DBENTRYP_VT ) hb_fptTrans,
( DBENTRYP_VT ) hb_fptTransRec,
( DBENTRYP_V ) hb_fptZap,
/* Relational Methods */
( DBENTRYP_VR ) hb_fptChildEnd,
( DBENTRYP_VR ) hb_fptChildStart,
( DBENTRYP_VR ) hb_fptChildSync,
( DBENTRYP_V ) hb_fptSyncChildren,
( DBENTRYP_V ) hb_fptClearRel,
( DBENTRYP_V ) hb_fptForceRel,
( DBENTRYP_SVP ) hb_fptRelArea,
( DBENTRYP_VR ) hb_fptRelEval,
( DBENTRYP_SI ) hb_fptRelText,
( DBENTRYP_VR ) hb_fptSetRel,
/* Order Management */
( DBENTRYP_OI ) hb_fptOrderListAdd,
( DBENTRYP_V ) hb_fptOrderListClear,
( DBENTRYP_OI ) hb_fptOrderListDelete,
( DBENTRYP_OI ) hb_fptOrderListFocus,
( DBENTRYP_V ) hb_fptOrderListRebuild,
( DBENTRYP_VOI ) hb_fptOrderCondition,
( DBENTRYP_VOC ) hb_fptOrderCreate,
( DBENTRYP_OI ) hb_fptOrderDestroy,
( DBENTRYP_OII ) hb_fptOrderInfo,
/* Filters and Scope Settings */
( DBENTRYP_V ) hb_fptClearFilter,
( DBENTRYP_V ) hb_fptClearLocate,
( DBENTRYP_V ) hb_fptClearScope,
( DBENTRYP_VPLP ) hb_fptCountScope,
( DBENTRYP_I ) hb_fptFilterText,
( DBENTRYP_SI ) hb_fptScopeInfo,
( DBENTRYP_VFI ) hb_fptSetFilter,
( DBENTRYP_VLO ) hb_fptSetLocate,
( DBENTRYP_VOS ) hb_fptSetScope,
( DBENTRYP_VPL ) hb_fptSkipScope,
( DBENTRYP_B ) hb_fptLocate,
/* Miscellaneous */
( DBENTRYP_P ) hb_fptCompile,
( DBENTRYP_I ) hb_fptError,
( DBENTRYP_I ) hb_fptEvalBlock,
/* Network operations */
( DBENTRYP_VSP ) hb_fptRawLock,
( DBENTRYP_VL ) hb_fptLock,
( DBENTRYP_I ) hb_fptUnLock,
/* Memofile functions */
( DBENTRYP_V ) hb_fptCloseMemFile,
( DBENTRYP_VP ) hb_fptCreateMemFile,
( DBENTRYP_SVPB ) hb_fptGetValueFile,
( DBENTRYP_VP ) hb_fptOpenMemFile,
( DBENTRYP_SVPB ) hb_fptPutValueFile,
/* Database file header handling */
( DBENTRYP_V ) hb_fptReadDBHeader,
( DBENTRYP_V ) hb_fptWriteDBHeader,
/* non WorkArea functions */
( DBENTRYP_R ) hb_fptInit,
( DBENTRYP_R ) hb_fptExit,
( DBENTRYP_RVVL ) hb_fptDrop,
( DBENTRYP_RVVL ) hb_fptExists,
( DBENTRYP_RSLV ) hb_fptRddInfo,
/* Special and reserved methods */
( DBENTRYP_SVP ) hb_fptWhoCares
};
/*
* generate Run-Time error
*/
static ERRCODE hb_memoErrorRT( FPTAREAP pArea, USHORT uiGenCode, USHORT uiSubCode, char * szFileName, USHORT uiOsCode, USHORT uiFlags )
{
ERRCODE errCode = FAILURE;
if( hb_vmRequestQuery() == 0 )
{
PHB_ITEM pError = hb_errNew();
if( uiGenCode == 0 )
uiGenCode = hb_dbfGetEGcode( uiSubCode );
if( uiOsCode == 0 && uiSubCode != EDBF_DATATYPE && uiSubCode != EDBF_DATAWIDTH )
uiOsCode = hb_fsError();
hb_errPutGenCode( pError, uiGenCode );
hb_errPutSubCode( pError, uiSubCode );
if( uiOsCode )
hb_errPutOsCode( pError, uiOsCode );
hb_errPutDescription( pError, hb_langDGetErrorDesc( uiGenCode ) );
if( szFileName )
hb_errPutFileName( pError, szFileName );
if( uiFlags )
hb_errPutFlags( pError, uiFlags );
errCode = SELF_ERROR( ( AREAP ) pArea, pError );
hb_errRelease( pError );
}
return errCode;
}
static char * hb_memoDefaultFileExt( int iType, USHORT uiRdd )
{
if( uiRdd == s_uiRddIdBLOB )
return DBV_MEMOEXT;
switch( iType )
{
case DB_MEMO_DBT:
return DBT_MEMOEXT;
case DB_MEMO_FPT:
return FPT_MEMOEXT;
case DB_MEMO_SMT:
return SMT_MEMOEXT;
}
return NULL;
}
/*
* Exclusive lock memo file.
*/
static BOOL hb_fptFileLockEx( FPTAREAP pArea, BOOL fWait )
{
BOOL fRet;
if( !pArea->fShared )
{
fRet = TRUE;
}
else
{
do
{
fRet = hb_fsLock( pArea->hMemoFile, FPT_LOCKPOS, FPT_LOCKSIZE,
FL_LOCK | FLX_EXCLUSIVE | ( fWait ? FLX_WAIT : 0 ) );
} while( !fRet && fWait );
}
return fRet;
}
/*
* Shared lock memo file.
*/
static BOOL hb_fptFileLockSh( FPTAREAP pArea, BOOL fWait )
{
BOOL fRet;
if( !pArea->fShared )
{
fRet = TRUE;
}
else
{
do
{
fRet = hb_fsLock( pArea->hMemoFile, FPT_LOCKPOS, FPT_LOCKSIZE,
FL_LOCK | FLX_SHARED | ( fWait ? FLX_WAIT : 0 ) );
} while( !fRet && fWait );
}
return fRet;
}
/*
* Unlock memo file.
*/
static BOOL hb_fptFileUnLock( FPTAREAP pArea )
{
return !pArea->fShared || hb_fsLock( pArea->hMemoFile, FPT_LOCKPOS, FPT_LOCKSIZE, FL_UNLOCK );
}
/*
* Check if MEMO file has direct access to data
*/
static BOOL hb_fptHasDirectAccess( FPTAREAP pArea )
{
return pArea->bMemoType == DB_MEMO_FPT &&
( pArea->uiMemoVersion == DB_MEMOVER_FLEX ||
pArea->uiMemoVersion == DB_MEMOVER_CLIP );
}
/*
* Lock root block pointer.
*/
static BOOL hb_fptRootBlockLock( FPTAREAP pArea )
{
BOOL fRet;
if( !pArea->fShared )
fRet = TRUE;
else
fRet = hb_fsLock( pArea->hMemoFile, FPT_ROOTBLOCK_OFFSET, 4,
FL_LOCK | FLX_EXCLUSIVE );
return fRet;
}
/*
* Unlock root block pointer.
*/
static BOOL hb_fptRootBlockUnLock( FPTAREAP pArea )
{
return !pArea->fShared ||
hb_fsLock( pArea->hMemoFile, FPT_ROOTBLOCK_OFFSET, 4, FL_UNLOCK );
}
/*
* Read root block pointer.
*/
static ERRCODE hb_fptGetRootBlock( FPTAREAP pArea, ULONG * pulBlock )
{
*pulBlock = 0;
if( hb_fptHasDirectAccess( pArea ) )
{
BYTE buffer[ 4 ];
hb_fsSeek( pArea->hMemoFile, FPT_ROOTBLOCK_OFFSET, FS_SET );
if( hb_fsRead( pArea->hMemoFile, buffer, 4 ) == 4 )
{
*pulBlock = HB_GET_LE_UINT32( buffer );
return SUCCESS;
}
else
return EDBF_READ;
}
return EDBF_UNSUPPORTED;
}
/*
* Write root block pointer.
*/
static ERRCODE hb_fptPutRootBlock( FPTAREAP pArea, ULONG ulBlock )
{
if( hb_fptHasDirectAccess( pArea ) )
{
BYTE buffer[ 4 ];
HB_PUT_LE_UINT32( buffer, ulBlock );
hb_fsSeek( pArea->hMemoFile, FPT_ROOTBLOCK_OFFSET, FS_SET );
if( hb_fsWrite( pArea->hMemoFile, buffer, 4 ) == 4 )
return SUCCESS;
else
return EDBF_WRITE;
}
return EDBF_UNSUPPORTED;
}
/*
GARBAGE COLLECTOR:
I don't have any documentation about it. All I know is reverse engineering
or analyzes of other sources. If any one can tell me sth more about it then
I will be really glad. I use method one for SixMemo and method 2 for FLEX
memos.
Method 1.
FPTHEADER->reserved2[492] is a list of free pages,
6 bytes for each page
size[2] (size in blocks) (little endian)
block[4] (block number) (little endian)
signature1[12] has to be cutted down to
10 bytes. The last 2 bytes becomes the
number of entries in free block list (max 82)
Method 2.
FPTHEADER->flexDir[4] is a little endian offset to page
(1024 bytes size) where header is:
type[4] = 1000 (big endian)
size[4] = 1010 (big endian)
then
nItem[2] number of item (little endian)
then 1008 bytes with free blocks list
(max 126 entries) in format:
offset[4] (little endian)
size[4] (little endian)
nItem is always odd and after read we have
to recalculate it:
nItem = ( nItem - 3 ) / 4
if FPTHEADER->flexDir = 0 then we can create it by allocating
two 1024 bytes pages for flexRev and flexDir page.
FPTHEADER->flexRev[4] 1024 bytes in next free block
FPTHEADER->flexDir[4] next 1024 bytes
flexRev page is copy of flexDir page but the items are stored
in reversed form size[4] first then offset[4]
size[4] (little endian)
offset[4] (little endian)
before writing GC pages (dir and rev, both has to be synced)
we should first sort the entries moving the shortest blocks
to the beginning so when we where looking for free block we
can scan the list from the beginning finding the first one
large enough. unused bytes in GC page should be filled with 0xAD
when we free fpt block we should set in its header:
type[4] = 1001 (big endian)
size[4] = rest of block size (block size - 8) (big endian)
TODO: Clipper 5.3 can use more then one GC page. I don't have any
documentation for that and don't have time for farther hacking
binary files to find the algorithm. If you have any documentation
about it, please send it to me.
OK. I've found a while for analyzing the FPT file created by Clipper
and I think I know this structure. It's a tree. The node type
is marked in the first two bytes of GC page encoded as bit field with
the number of items 2 - means branch node, 3-leaf node. The value in
GC node is calculated as:
( nItem << 2 ) | FPTGCNODE_TYPE
Each item in branch node has 12 bytes and inside them 3 32bit little
endian values in pages sorted by offset the are:
offset,size,subpage
and in pages sorted by size:
size,offset,subpage
size and offset is the biggest (the last one) value in subpage(s)
and subpage is offset of subpage int the file.
All values in GC pages are in bytes not blocks - it creates the
FPT file size limit 2^32 - if they will be in blocks then the
the FPT file size will be limited by 2^32*block_size
It's time to implement it ;-)
*/
/*
* Sort GC free memo block list by size.
*/
static void hb_fptSortGCitems( LPMEMOGCTABLE pGCtable )
{
ULONG ulOffset, ulSize;
BOOL fMoved = TRUE;
int i, j, l;
/* this table should be allready quite good sorted so this simple
algorithms will be the most efficient one.
It will need only one or two passes */
l = pGCtable->usItems - 1;
while( fMoved )
{
fMoved = FALSE;
j = l;
for( i = 0; i < j; i++ )
{
if( pGCtable->pGCitems[i].ulSize > pGCtable->pGCitems[i+1].ulSize )
{
ulOffset = pGCtable->pGCitems[i+1].ulOffset;
ulSize = pGCtable->pGCitems[i+1].ulSize;
pGCtable->pGCitems[i+1].ulSize = pGCtable->pGCitems[i].ulSize;
pGCtable->pGCitems[i+1].ulOffset = pGCtable->pGCitems[i].ulOffset;
pGCtable->pGCitems[ i ].ulSize = ulSize;
pGCtable->pGCitems[ i ].ulOffset = ulOffset;
fMoved = TRUE;
pGCtable->bChanged |= 2;
l = i;
}
}
}
}
/*
* Pack GC free memo block list - try to join free blocks.
*/
static void hb_fptPackGCitems( LPMEMOGCTABLE pGCtable )
{
ULONG ulEnd;
int i, j;
/* TODO: better alogrithm this primitve one can be too slow for big
free block list table */
for( i = 0; i < pGCtable->usItems; i++ )
{
if( pGCtable->pGCitems[i].ulOffset != 0 &&
pGCtable->pGCitems[i].ulSize != 0 )
{
ulEnd = pGCtable->pGCitems[i].ulOffset + pGCtable->pGCitems[i].ulSize;
if( ulEnd == pGCtable->ulNextBlock )
{
pGCtable->ulNextBlock -= pGCtable->pGCitems[i].ulSize;
pGCtable->pGCitems[i].ulOffset = pGCtable->pGCitems[i].ulSize = 0;
pGCtable->bChanged |= 2;
i = -1;
}
else
{
for( j = i + 1; j < pGCtable->usItems; j++ )
{
if( ulEnd == pGCtable->pGCitems[j].ulOffset )
{
pGCtable->pGCitems[i].ulSize += pGCtable->pGCitems[j].ulSize;
pGCtable->pGCitems[j].ulOffset = pGCtable->pGCitems[j].ulSize = 0;
pGCtable->bChanged |= 2;
i = -1;
break;
}
}
}
}
}
/* remove empty items */
for( i = j = 0; i < pGCtable->usItems; i++ )
{
if( pGCtable->pGCitems[i].ulOffset != 0 &&
pGCtable->pGCitems[i].ulSize != 0 )
{
if( i > j )
{
pGCtable->pGCitems[j].ulOffset = pGCtable->pGCitems[i].ulOffset;
pGCtable->pGCitems[j].ulSize = pGCtable->pGCitems[i].ulSize;
}
j++;
}
}
pGCtable->usItems = j;
}
/*
* Write proper header into modified GC free memo blocks.
*/
static ERRCODE hb_fptWriteGCitems( FPTAREAP pArea, LPMEMOGCTABLE pGCtable, USHORT usItem )
{
FPTBLOCK fptBlock;
ERRCODE errCode = SUCCESS;
int i /* ,iStart, iStop */;
HB_SYMBOL_UNUSED( usItem );
/*
if( usItem == 0 )
{
iStart = 0;
iStop = pGCtable->usItems;
}
else
{
iStart = usItem;
iStop = usItem + 1;
}
*/
for( i = 0; i < pGCtable->usItems; i++ )
{
if( pGCtable->pGCitems[i].fChanged )
{
if( pArea->uiMemoVersion == DB_MEMOVER_FLEX ||
pArea->uiMemoVersion == DB_MEMOVER_CLIP )
{
HB_PUT_BE_UINT32( fptBlock.type, FPTIT_FLEX_UNUSED );
HB_PUT_BE_UINT32( fptBlock.size, pArea->uiMemoBlockSize *
pGCtable->pGCitems[i].ulSize - sizeof( FPTBLOCK ) );
hb_fsSeekLarge( pArea->hMemoFile,
( HB_FOFFSET ) pGCtable->pGCitems[i].ulOffset *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) )
{
errCode = EDBF_WRITE;
}
pArea->fMemoFlush = TRUE;
}
pGCtable->pGCitems[i].fChanged = FALSE;
}
}
return errCode;
}
/*
* Add new block to GC free memo blocks list.
*/
static ERRCODE hb_fptGCfreeBlock( FPTAREAP pArea, LPMEMOGCTABLE pGCtable,
ULONG ulOffset, ULONG ulByteSize, BOOL fRaw )
{
ERRCODE errCode = SUCCESS;
ULONG ulSize;
if( pArea->bMemoType == DB_MEMO_DBT )
{
return SUCCESS;
}
else if( pArea->bMemoType == DB_MEMO_FPT && !fRaw )
{
if( ulByteSize == 0 )
{
FPTBLOCK fptBlock;
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulOffset *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) == sizeof( FPTBLOCK ) )
{
ulByteSize = HB_GET_BE_UINT32( fptBlock.size ) + sizeof( FPTBLOCK );
}
}
else
{
ulByteSize += sizeof( FPTBLOCK );
}
}
ulSize = ( ulByteSize + pArea->uiMemoBlockSize - 1 ) / pArea->uiMemoBlockSize;
if( ulSize == 0 )
{
return EDBF_CORRUPT;
}
if( ulOffset + ulSize == pGCtable->ulNextBlock )
{
pGCtable->ulNextBlock -= ulSize;
pGCtable->bChanged |= 1;
hb_fptPackGCitems( pGCtable );
}
else
{
BOOL fChanged = FALSE;
int i;
for( i = 0; i < pGCtable->usItems; i++ )
{
if( pGCtable->pGCitems[i].ulOffset + pGCtable->pGCitems[i].ulSize == ulOffset )
{
ulOffset = pGCtable->pGCitems[i].ulOffset;
ulSize = pGCtable->pGCitems[i].ulSize += ulSize;
fChanged = pGCtable->pGCitems[i].fChanged = TRUE;
break;
}
if( pGCtable->pGCitems[i].ulOffset == ulOffset + ulSize )
{
pGCtable->pGCitems[i].ulOffset = ulOffset;
ulSize = pGCtable->pGCitems[i].ulSize += ulSize;
fChanged = pGCtable->pGCitems[i].fChanged = TRUE;
break;
}
}
if( !fChanged )
{
if( pGCtable->usItems <= pGCtable->usMaxItem )
{
if( pGCtable->pGCitems == NULL )
{
pGCtable->pGCitems = ( LPMEMOGCITEM ) hb_xgrab( sizeof( MEMOGCITEM ) * ( pGCtable->usMaxItem + 1 ) );
}
pGCtable->pGCitems[ pGCtable->usItems ].ulOffset = ulOffset;
pGCtable->pGCitems[ pGCtable->usItems ].ulSize = ulSize;
pGCtable->pGCitems[ pGCtable->usItems ].fChanged = fChanged = TRUE;
pGCtable->usItems++;
}
else if( pGCtable->pGCitems[ 0 ].ulSize < ulSize )
{
if( pGCtable->ulNextBlock == pGCtable->pGCitems[ 0 ].ulOffset +
pGCtable->pGCitems[ 0 ].ulSize )
{
pGCtable->ulNextBlock -= pGCtable->pGCitems[ 0 ].ulSize;
}
else if( pGCtable->pGCitems[ 0 ].fChanged )
{
errCode = hb_fptWriteGCitems( pArea, pGCtable, 0 );
}
pGCtable->pGCitems[ 0 ].ulOffset = ulOffset;
pGCtable->pGCitems[ 0 ].ulSize = ulSize;
pGCtable->pGCitems[ 0 ].fChanged = fChanged = TRUE;
}
}
if( fChanged )
{
pGCtable->bChanged |= 2;
hb_fptPackGCitems( pGCtable );
hb_fptSortGCitems( pGCtable );
}
}
return errCode;
}
/*
* Get free memo block from GC free memo blocks list or allocate new one.
*/
static ERRCODE hb_fptGCgetFreeBlock( FPTAREAP pArea, LPMEMOGCTABLE pGCtable,
ULONG * ulOffset, ULONG ulByteSize,
BOOL fRaw )
{
BOOL fAlloc = FALSE;
ULONG ulSize;
int i;
if( pArea->bMemoType == DB_MEMO_SMT || fRaw )
{
ulSize = ( ulByteSize + pArea->uiMemoBlockSize - 1 ) /
pArea->uiMemoBlockSize;
}
else if( pArea->bMemoType == DB_MEMO_FPT )
{
ulSize = ( ulByteSize + sizeof( FPTBLOCK ) + pArea->uiMemoBlockSize - 1 ) /
pArea->uiMemoBlockSize;
}
else if( pArea->bMemoType == DB_MEMO_DBT )
{
ulSize = ( ulByteSize + pArea->uiMemoBlockSize ) /
pArea->uiMemoBlockSize;
}
else
{
ulSize = ( ulByteSize + pArea->uiMemoBlockSize - 1 ) /
pArea->uiMemoBlockSize;
}
for( i = 0; i < pGCtable->usItems; i++ )
{
if( pGCtable->pGCitems[i].ulSize >= ulSize )
{
*ulOffset = pGCtable->pGCitems[i].ulOffset;
pGCtable->pGCitems[i].ulOffset += ulSize;
pGCtable->pGCitems[i].ulSize -= ulSize;
if( pGCtable->pGCitems[i].ulSize == 0 )
{
while( ++i < pGCtable->usItems )
{
pGCtable->pGCitems[i-1].ulOffset = pGCtable->pGCitems[i].ulOffset;
pGCtable->pGCitems[i-1].ulSize = pGCtable->pGCitems[i].ulSize;
}
pGCtable->usItems--;
}
else
{
pGCtable->pGCitems[i].fChanged = TRUE;
hb_fptSortGCitems( pGCtable );
}
pGCtable->bChanged |= 2;
fAlloc = TRUE;
break;
}
}
if( !fAlloc )
{
*ulOffset = pGCtable->ulNextBlock;
pGCtable->ulNextBlock += ulSize;
pGCtable->bChanged |= 1;
}
return SUCCESS;
}
/*
* Init GC table free memo blok list.
*/
static void hb_fptInitGCdata( LPMEMOGCTABLE pGCtable )
{
memset( pGCtable, 0, sizeof(MEMOGCTABLE) );
}
/*
* Clean GC table free memo blok list.
*/
static void hb_fptDestroyGCdata( LPMEMOGCTABLE pGCtable )
{
if( pGCtable->pGCitems != NULL )
{
hb_xfree( pGCtable->pGCitems );
pGCtable->pGCitems = NULL;
pGCtable->usItems = 0;
}
pGCtable->bChanged = 0;
}
/*
* Read GC table from memo file.
*/
static ERRCODE hb_fptReadGCdata( FPTAREAP pArea, LPMEMOGCTABLE pGCtable )
{
int i;
hb_fptDestroyGCdata( pGCtable );
memset( &pGCtable->fptHeader, 0, sizeof( FPTHEADER ) );
hb_fsSeek( pArea->hMemoFile, 0, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &pGCtable->fptHeader, sizeof( FPTHEADER ) ) >= 512 )
{
if( pArea->bMemoType == DB_MEMO_SMT || pArea->bMemoType == DB_MEMO_DBT )
pGCtable->ulNextBlock = HB_GET_LE_UINT32( pGCtable->fptHeader.nextBlock );
else
pGCtable->ulNextBlock = HB_GET_BE_UINT32( pGCtable->fptHeader.nextBlock );
pGCtable->ulPrevBlock = pGCtable->ulNextBlock;
if( pArea->uiMemoVersion == DB_MEMOVER_SIX ||
pArea->bMemoType == DB_MEMO_SMT )
{
pGCtable->bType = DB_MEMOVER_SIX;
pGCtable->usMaxItem = MAX_SIXFREEBLOCKS;
pGCtable->usItems = HB_GET_LE_UINT16( pGCtable->fptHeader.nGCitems );
if( pGCtable->usItems > pGCtable->usMaxItem )
{
return EDBF_CORRUPT;
}
pGCtable->pGCitems = ( LPMEMOGCITEM ) hb_xgrab( sizeof( MEMOGCITEM ) * ( pGCtable->usMaxItem + 1 ) );
for( i = 0; i < pGCtable->usItems; i++ )
{
pGCtable->pGCitems[i].ulSize = HB_GET_LE_UINT16( &pGCtable->fptHeader.reserved2[ i * 6 ] );
pGCtable->pGCitems[i].ulOffset = HB_GET_LE_UINT32( &pGCtable->fptHeader.reserved2[ i * 6 + 2 ] );
pGCtable->pGCitems[i].fChanged = FALSE;
}
}
else if( pArea->bMemoType == DB_MEMO_FPT &&
( pArea->uiMemoVersion == DB_MEMOVER_FLEX ||
pArea->uiMemoVersion == DB_MEMOVER_CLIP ) )
{
FPTBLOCK fptBlock;
BYTE *bPageBuf;
pGCtable->bType = DB_MEMOVER_FLEX;
pGCtable->usMaxItem = MAX_FLEXFREEBLOCKS;
pGCtable->ulRevPage = HB_GET_LE_UINT32( pGCtable->fptHeader.flexRev );
pGCtable->ulDirPage = HB_GET_LE_UINT32( pGCtable->fptHeader.flexDir );
pGCtable->ulCounter = HB_GET_LE_UINT32( pGCtable->fptHeader.counter );
if( pGCtable->ulDirPage )
{
hb_fsSeekLarge( pArea->hMemoFile, pGCtable->ulDirPage, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) ||
HB_GET_BE_UINT32( fptBlock.type ) != FPTIT_FLEX_GC )
{
return EDBF_CORRUPT;
}
pGCtable->ulSize = HB_GET_BE_UINT32( fptBlock.size );
bPageBuf = ( BYTE * ) hb_xgrab( pGCtable->ulSize );
if( hb_fsRead( pArea->hMemoFile, bPageBuf, ( USHORT ) pGCtable->ulSize ) !=
( USHORT ) pGCtable->ulSize )
{
hb_xfree( bPageBuf );
return EDBF_CORRUPT;
}
pGCtable->usMaxItem = (USHORT ) ( ( pGCtable->ulSize - 2 ) >> 3 );
pGCtable->usItems = ( HB_GET_LE_UINT16( bPageBuf ) - 3 ) >> 2;
pGCtable->pGCitems = ( LPMEMOGCITEM ) hb_xgrab( sizeof( MEMOGCITEM ) *
( HB_MIN( pGCtable->usItems, pGCtable->usMaxItem ) + 1 ) );
for( i = 0; i < pGCtable->usItems; i++ )
{
pGCtable->pGCitems[i].ulOffset = HB_GET_LE_UINT32( &bPageBuf[ i * 8 + 2 ] ) /
pArea->uiMemoBlockSize;
pGCtable->pGCitems[i].ulSize = HB_GET_LE_UINT32( &bPageBuf[ i * 8 + 6 ] ) /
pArea->uiMemoBlockSize;
pGCtable->pGCitems[i].fChanged = FALSE;
}
hb_xfree( bPageBuf );
}
}
if( pGCtable->pGCitems )
{
hb_fptSortGCitems( pGCtable );
}
return SUCCESS;
}
return EDBF_READ;
}
/*
* Write GC table into memo file.
*/
static ERRCODE hb_fptWriteGCdata( FPTAREAP pArea, LPMEMOGCTABLE pGCtable )
{
ERRCODE errCode = SUCCESS;
ULONG ulHdrSize = 512;
int i, j;
if( pGCtable->bChanged > 0 )
{
if( pGCtable->bType == DB_MEMOVER_SIX )
{
USHORT usItems = HB_MIN( pGCtable->usItems, pGCtable->usMaxItem );
HB_PUT_LE_UINT16( pGCtable->fptHeader.nGCitems, usItems );
memset( pGCtable->fptHeader.reserved2, 0, sizeof( pGCtable->fptHeader.reserved2 ) );
j = pGCtable->usItems - usItems;
for( i = j; i < pGCtable->usItems; i++ )
{
HB_PUT_LE_UINT16( &pGCtable->fptHeader.reserved2[ ( i - j ) * 6 ],
(( USHORT ) pGCtable->pGCitems[i].ulSize ) );
HB_PUT_LE_UINT32( &pGCtable->fptHeader.reserved2[ ( i - j ) * 6 + 2 ],
pGCtable->pGCitems[i].ulOffset );
}
}
else if( pGCtable->bType == DB_MEMOVER_FLEX )
{
ulHdrSize = sizeof( FPTHEADER );
pGCtable->ulCounter++;
if( pGCtable->usItems == 0 && pGCtable->ulDirPage )
{
ULONG ulOffset = pGCtable->ulDirPage;
ULONG ulSize = ( pGCtable->ulSize + pArea->uiMemoBlockSize - 1 ) /
pArea->uiMemoBlockSize;
if( pGCtable->ulRevPage )
{
ulSize <<= 1;
if( pGCtable->ulDirPage > pGCtable->ulRevPage )
{
ulOffset = pGCtable->ulRevPage;
}
}
ulOffset /= pArea->uiMemoBlockSize;
if( ulOffset + ulSize == pGCtable->ulNextBlock )
{
pGCtable->ulDirPage = pGCtable->ulRevPage = 0;
pGCtable->ulNextBlock -= ulSize;
}
}
else if( pGCtable->usItems > 0 && ! pGCtable->ulDirPage )
{
pGCtable->ulSize = FLEXGCPAGE_SIZE;
errCode = hb_fptGCgetFreeBlock( pArea, pGCtable,
&pGCtable->ulDirPage, pGCtable->ulSize, FALSE );
if( errCode == SUCCESS )
{
pGCtable->ulDirPage *= pArea->uiMemoBlockSize;
errCode = hb_fptGCgetFreeBlock( pArea, pGCtable,
&pGCtable->ulRevPage, pGCtable->ulSize, FALSE );
pGCtable->ulRevPage *= pArea->uiMemoBlockSize;
}
pGCtable->bChanged |= 2;
}
if( pGCtable->ulDirPage && pGCtable->bChanged > 1 )
{
FPTBLOCK fptBlock;
BYTE *bPageBuf;
USHORT usItems = HB_MIN( pGCtable->usItems, pGCtable->usMaxItem );
HB_PUT_BE_UINT32( fptBlock.type, FPTIT_FLEX_GC );
HB_PUT_BE_UINT32( fptBlock.size, pGCtable->ulSize );
bPageBuf = ( BYTE * ) hb_xgrab( pGCtable->ulSize );
memset( bPageBuf, 0xAD, pGCtable->ulSize );
HB_PUT_LE_UINT16( bPageBuf, ( (USHORT) usItems << 2 ) + 3 );
j = pGCtable->usItems - usItems;
for( i = j; i < pGCtable->usItems; i++ )
{
HB_PUT_LE_UINT32( &bPageBuf[ ( i - j ) * 8 + 2 ],
pGCtable->pGCitems[i].ulOffset * pArea->uiMemoBlockSize );
HB_PUT_LE_UINT32( &bPageBuf[ ( i - j ) * 8 + 6 ],
pGCtable->pGCitems[i].ulSize * pArea->uiMemoBlockSize );
}
hb_fsSeekLarge( pArea->hMemoFile, pGCtable->ulDirPage, FS_SET );
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) ||
hb_fsWrite( pArea->hMemoFile, bPageBuf,
( USHORT ) pGCtable->ulSize ) != ( USHORT ) pGCtable->ulSize )
{
errCode = EDBF_WRITE;
}
else if( pGCtable->ulRevPage )
{
for( i = j; i < pGCtable->usItems; i++ )
{
HB_PUT_LE_UINT32( &bPageBuf[ ( i - j ) * 8 + 2 ],
( ( USHORT ) pGCtable->pGCitems[i].ulSize * pArea->uiMemoBlockSize ) );
HB_PUT_LE_UINT32( &bPageBuf[ ( i - j ) * 8 + 6 ],
pGCtable->pGCitems[i].ulOffset * pArea->uiMemoBlockSize );
}
hb_fsSeekLarge( pArea->hMemoFile, pGCtable->ulRevPage, FS_SET );
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) ||
hb_fsWrite( pArea->hMemoFile, bPageBuf,
( USHORT )pGCtable->ulSize ) != ( USHORT ) pGCtable->ulSize )
{
errCode = EDBF_WRITE;
}
}
hb_xfree( bPageBuf );
}
HB_PUT_LE_UINT32( pGCtable->fptHeader.flexRev, pGCtable->ulRevPage );
HB_PUT_LE_UINT32( pGCtable->fptHeader.flexDir, pGCtable->ulDirPage );
HB_PUT_LE_UINT32( pGCtable->fptHeader.counter, pGCtable->ulCounter );
}
if( pGCtable->bChanged > 1 && errCode == SUCCESS )
{
errCode = hb_fptWriteGCitems( pArea, pGCtable, 0 );
}
if( errCode == SUCCESS )
{
if( pArea->bMemoType == DB_MEMO_SMT || pArea->bMemoType == DB_MEMO_DBT )
HB_PUT_LE_UINT32( pGCtable->fptHeader.nextBlock, pGCtable->ulNextBlock );
else
HB_PUT_BE_UINT32( pGCtable->fptHeader.nextBlock, pGCtable->ulNextBlock );
hb_fsSeek( pArea->hMemoFile, 0, FS_SET );
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &pGCtable->fptHeader,
( USHORT ) ulHdrSize ) != ( USHORT ) ulHdrSize )
{
errCode = EDBF_WRITE;
}
else if( pGCtable->ulNextBlock < pGCtable->ulPrevBlock )
{
/* trunc file */
hb_fsSeekLarge( pArea->hMemoFile,
( HB_FOFFSET ) pGCtable->ulNextBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
hb_fsWrite( pArea->hMemoFile, NULL, 0 );
}
}
pArea->fMemoFlush = TRUE;
pGCtable->bChanged = 0;
}
return errCode;
}
/*
* Return the size of memo.
*/
static ULONG hb_fptGetMemoLen( FPTAREAP pArea, USHORT uiIndex )
{
ULONG ulBlock, ulSize, ulType;
FPTBLOCK fptBlock;
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetMemoLen(%p, %hu)", pArea, uiIndex));
if( hb_dbfGetMemoData( ( DBFAREAP ) pArea, uiIndex - 1, &ulBlock, &ulSize,
&ulType ) == SUCCESS )
{
if( ulBlock != 0 )
{
if( ulSize == 0 && ( pArea->bMemoType == DB_MEMO_DBT ||
pArea->bMemoType == DB_MEMO_FPT ) )
{
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( pArea->bMemoType == DB_MEMO_DBT )
{
BYTE pBlock[ DBT_DEFBLOCKSIZE ];
int iLen, i;
do
{
iLen = hb_fsRead( pArea->hMemoFile, pBlock, DBT_DEFBLOCKSIZE );
if( iLen <= 0 )
break;
i = 0;
while( i < iLen && pBlock[ i ] != 0x1A )
i++;
ulSize += i;
} while( i == DBT_DEFBLOCKSIZE );
}
else if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) == sizeof( FPTBLOCK ) )
ulSize = HB_GET_BE_UINT32( fptBlock.size );
}
return ulSize;
}
}
return 0;
}
/*
* Return the type of memo.
*/
static char * hb_fptGetMemoType( FPTAREAP pArea, USHORT uiIndex )
{
ULONG ulBlock, ulSize, ulType;
FPTBLOCK fptBlock;
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetMemoType(%p, %hu)", pArea, uiIndex));
if( hb_dbfGetMemoData( ( DBFAREAP ) pArea, uiIndex - 1, &ulBlock, &ulSize,
&ulType ) == SUCCESS )
{
if( ulBlock != 0 )
{
if( ulType == 0 && pArea->bMemoType == DB_MEMO_FPT )
{
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) )
return "U";
ulType = HB_GET_BE_UINT32( fptBlock.type );
}
}
if( ulType == 0 )
return "M";
if( pArea->bMemoType == DB_MEMO_FPT )
{
switch ( ulType )
{
case FPTIT_SIX_LNUM:
case FPTIT_SIX_DNUM:
return "N";
case FPTIT_SIX_LDATE:
return "D";
case FPTIT_SIX_LOG:
return "L";
case FPTIT_SIX_CHAR:
return "M";
case FPTIT_SIX_ARRAY:
return "A";
/*
case FPTIT_SIX_BLOCK:
case FPTIT_SIX_VREF:
case FPTIT_SIX_MREF:
*/
case FPTIT_FLEX_ARRAY:
case FPTIT_FLEX_VOARR:
return "A";
case FPTIT_FLEX_OBJECT:
case FPTIT_FLEX_VOOBJ:
return "O";
case FPTIT_FLEX_NIL:
return "U";
case FPTIT_FLEX_TRUE:
case FPTIT_FLEX_FALSE:
return "L";
case FPTIT_FLEX_LDATE:
return "D";
case FPTIT_FLEX_CHAR:
case FPTIT_FLEX_UCHAR:
case FPTIT_FLEX_SHORT:
case FPTIT_FLEX_USHORT:
case FPTIT_FLEX_LONG:
case FPTIT_FLEX_ULONG:
case FPTIT_FLEX_DOUBLE:
case FPTIT_FLEX_LDOUBLE:
return "N";
case FPTIT_TEXT:
return "M";
case FPTIT_PICT:
case FPTIT_FLEX_COMPRCH:
return "C";
}
return "U";
}
else if( pArea->bMemoType == DB_MEMO_SMT )
{
switch ( ulType )
{
case SMT_IT_NIL:
return "U";
case SMT_IT_CHAR:
return "M";
case SMT_IT_INT:
case SMT_IT_DOUBLE:
return "N";
case SMT_IT_DATE:
return "D";
case SMT_IT_LOGICAL:
return "L";
case SMT_IT_ARRAY:
return "A";
}
return "U";
}
return "M";
}
return "U";
}
/*
* Calculate the size of SMT memo item
*/
static ULONG hb_fptCountSMTItemLength( FPTAREAP pArea, PHB_ITEM pItem,
ULONG * pulArrayCount )
{
ULONG ulLen, i, ulSize;
switch( hb_itemType( pItem ) )
{
case HB_IT_ARRAY: /* HB_IT_OBJECT == HB_IT_ARRAY */
(*pulArrayCount)++;
ulSize = 3;
ulLen = hb_arrayLen( pItem );
if( ulLen > 0xFFFF )
ulLen = 0xFFFF;
for( i = 1; i <= ulLen; i++ )
{
ulSize += hb_fptCountSMTItemLength( pArea, hb_arrayGetItemPtr( pItem, i ), pulArrayCount );
}
break;
case HB_IT_MEMO:
case HB_IT_STRING:
ulLen = hb_itemGetCLen( pItem );
if( ulLen > 0xFFFF )
ulLen = 0xFFFF;
ulSize = ulLen + 3;
break;
case HB_IT_LOGICAL:
ulSize = 2;
break;
case HB_IT_DATE:
ulSize = 5;
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
{
HB_LONG iVal;
iVal = hb_itemGetNInt( pItem );
if( HB_LIM_INT32( iVal ) )
{
ulSize = 5;
break;
}
}
case HB_IT_DOUBLE:
ulSize = 11;
break;
case HB_IT_NIL:
default:
ulSize = 1;
}
return ulSize;
}
/*
* Calculate the size of SMT memo data
*/
static ERRCODE hb_fptCountSMTDataLength( FPTAREAP pArea, ULONG * ulLen )
{
USHORT i, uiSize;
BYTE buffer[ 2 ];
if( hb_fsRead( pArea->hMemoFile, buffer, 1 ) != 1 )
return EDBF_READ;
*ulLen += 1;
switch( buffer[ 0 ] )
{
case SMT_IT_ARRAY:
if( hb_fsRead( pArea->hMemoFile, buffer, 2 ) != 2 )
return EDBF_READ;
*ulLen += 2;
uiSize = HB_GET_LE_UINT16( buffer );
for( i = 0; i < uiSize; i++ )
{
ERRCODE errCode = hb_fptCountSMTDataLength( pArea, ulLen );
if( errCode != SUCCESS )
return errCode;
}
break;
case SMT_IT_CHAR:
if( hb_fsRead( pArea->hMemoFile, buffer, 2 ) != 2 )
return EDBF_READ;
uiSize = HB_GET_LE_UINT16( buffer );
*ulLen += uiSize + 2;
hb_fsSeek( pArea->hMemoFile, uiSize, FS_RELATIVE );
break;
case SMT_IT_INT:
case SMT_IT_DATE:
*ulLen += 4;
hb_fsSeek( pArea->hMemoFile, 4, FS_RELATIVE );
break;
case SMT_IT_DOUBLE:
*ulLen += 10;
hb_fsSeek( pArea->hMemoFile, 10, FS_RELATIVE );
break;
case SMT_IT_LOGICAL:
*ulLen += 1;
hb_fsSeek( pArea->hMemoFile, 1, FS_RELATIVE );
break;
case SMT_IT_NIL:
break;
default:
return EDBF_CORRUPT;
}
return SUCCESS;
}
/*
* Write VM item as SMT memos.
*/
static ULONG hb_fptStoreSMTItem( FPTAREAP pArea, PHB_ITEM pItem, BYTE ** bBufPtr )
{
ULONG ulLen, i, ulSize = 0;
HB_LONG iVal;
LONG lVal;
double dVal;
int iWidth, iDec;
switch( hb_itemType( pItem ) )
{
case HB_IT_ARRAY:
*(*bBufPtr)++ = SMT_IT_ARRAY;
ulLen = hb_arrayLen( pItem );
if( ulLen > 0xFFFF )
ulLen = 0xFFFF;
HB_PUT_LE_UINT16( *bBufPtr, ulLen );
*bBufPtr += 2;
for( i = 1; i <= ulLen; i++ )
{
ulSize += hb_fptStoreSMTItem( pArea, hb_arrayGetItemPtr( pItem, i ),
bBufPtr );
}
break;
case HB_IT_STRING:
case HB_IT_MEMO:
*(*bBufPtr)++ = SMT_IT_CHAR;
ulLen = hb_itemGetCLen( pItem );
if( ulLen > 0xFFFF )
ulLen = 0xFFFF;
HB_PUT_LE_UINT16( *bBufPtr, ulLen );
*bBufPtr += 2;
if( ulLen > 0 )
{
memcpy( *bBufPtr, hb_itemGetCPtr( pItem ), ulLen );
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) *bBufPtr, hb_vmCDP(), pArea->cdPage, ulLen );
#endif
*bBufPtr += ulLen;
}
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
iVal = hb_itemGetNInt( pItem );
if( HB_LIM_INT32( iVal ) )
{
*(*bBufPtr)++ = SMT_IT_INT;
HB_PUT_LE_UINT32( *bBufPtr, iVal );
*bBufPtr += 4;
break;
}
case HB_IT_DOUBLE:
dVal = hb_itemGetND( pItem );
hb_itemGetNLen( pItem, &iWidth, &iDec );
if( iDec )
iWidth += iDec + 1;
*(*bBufPtr)++ = SMT_IT_DOUBLE;
*(*bBufPtr)++ = ( BYTE ) iWidth;
*(*bBufPtr)++ = ( BYTE ) iDec;
HB_PUT_LE_DOUBLE( *bBufPtr, dVal );
*bBufPtr += 8;
break;
case HB_IT_DATE:
*(*bBufPtr)++ = SMT_IT_DATE;
lVal = hb_itemGetDL( pItem );
HB_PUT_LE_UINT32( *bBufPtr, lVal );
*bBufPtr += 4;
break;
case HB_IT_LOGICAL:
*(*bBufPtr)++ = SMT_IT_LOGICAL;
*(*bBufPtr)++ = hb_itemGetL( pItem ) ? 1 : 0;
break;
case HB_IT_NIL:
default:
*(*bBufPtr)++ = SMT_IT_NIL;
break;
}
return ulSize;
}
/*
* Read SMT item from file
*/
static ERRCODE hb_fptReadRawSMTItem( FPTAREAP pArea, PHB_ITEM pItem )
{
ULONG ulLen, i;
BYTE buffer[ 10 ], *pBuffer;
int iWidth, iDec;
if( hb_fsRead( pArea->hMemoFile, buffer, 1 ) != 1 )
return EDBF_READ;
switch( buffer[ 0 ] )
{
case SMT_IT_ARRAY:
if( hb_fsRead( pArea->hMemoFile, buffer, 2 ) != 2 )
return EDBF_READ;
ulLen = HB_GET_LE_UINT16( buffer );
hb_arrayNew( pItem, ulLen );
for( i = 1; i <= ulLen; i++ )
{
ERRCODE errCode = hb_fptReadRawSMTItem( pArea, hb_arrayGetItemPtr( pItem, i ) );
if( errCode != SUCCESS )
return errCode;
}
break;
case SMT_IT_CHAR:
if( hb_fsRead( pArea->hMemoFile, buffer, 2 ) != 2 )
return EDBF_READ;
ulLen = HB_GET_LE_UINT16( buffer );
pBuffer = ( BYTE * ) hb_xgrab( ulLen + 1 );
if( hb_fsRead( pArea->hMemoFile, pBuffer, ( USHORT ) ulLen ) != ( USHORT ) ulLen )
{
hb_xfree( pBuffer );
return EDBF_READ;
}
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) pBuffer, pArea->cdPage, hb_vmCDP(), ulLen );
#endif
hb_itemPutCLPtr( pItem, ( char *) pBuffer, ulLen );
break;
case SMT_IT_INT:
if( hb_fsRead( pArea->hMemoFile, buffer, 4 ) != 4 )
return EDBF_READ;
hb_itemPutNInt( pItem, ( LONG ) HB_GET_LE_UINT32( buffer ) );
break;
case SMT_IT_DOUBLE:
if( hb_fsRead( pArea->hMemoFile, buffer, 10 ) != 10 )
return EDBF_READ;
iWidth = buffer[ 0 ];
iDec = buffer[ 1 ];
if( iDec )
iWidth -= iDec + 1;
hb_itemPutNDLen( pItem, HB_GET_LE_DOUBLE( &buffer[ 2 ] ), iWidth, iDec );
break;
case SMT_IT_DATE:
if( hb_fsRead( pArea->hMemoFile, buffer, 4 ) != 4 )
return EDBF_READ;
hb_itemPutDL( pItem, ( LONG ) HB_GET_LE_UINT32( buffer ) );
break;
case SMT_IT_LOGICAL:
if( hb_fsRead( pArea->hMemoFile, buffer, 1 ) != 1 )
return EDBF_READ;
hb_itemPutL( pItem, buffer[ 0 ] != 0 );
break;
case SMT_IT_NIL:
hb_itemClear( pItem );
break;
default:
hb_itemClear( pItem );
return EDBF_CORRUPT;
}
return SUCCESS;
}
/*
* Read SMT item from memory buffer.
*/
static ERRCODE hb_fptReadSMTItem( FPTAREAP pArea, BYTE ** pbMemoBuf, BYTE * bBufEnd, PHB_ITEM pItem )
{
ULONG ulLen, i;
ERRCODE errCode = SUCCESS;
int iWidth, iDec;
if( bBufEnd - (*pbMemoBuf) >= 1 )
{
switch ( *(*pbMemoBuf)++ )
{
case SMT_IT_ARRAY:
if( bBufEnd - (*pbMemoBuf) < 2 )
{
errCode = EDBF_CORRUPT;
break;
}
ulLen = HB_GET_LE_UINT16( *pbMemoBuf );
*pbMemoBuf += 2;
if( bBufEnd - (*pbMemoBuf) < ( LONG ) ulLen )
{
errCode = EDBF_CORRUPT;
break;
}
hb_arrayNew( pItem, ulLen );
for( i = 1; i <= ulLen; i++ )
{
errCode = hb_fptReadSMTItem( pArea, pbMemoBuf, bBufEnd,
hb_arrayGetItemPtr( pItem, i ) );
if( errCode != SUCCESS )
break;
}
break;
case SMT_IT_CHAR:
if( bBufEnd - (*pbMemoBuf) < 2 )
{
errCode = EDBF_CORRUPT;
break;
}
ulLen = HB_GET_LE_UINT16( *pbMemoBuf );
*pbMemoBuf += 2;
if( bBufEnd - (*pbMemoBuf) < ( LONG ) ulLen )
{
errCode = EDBF_CORRUPT;
}
else
{
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) (*pbMemoBuf), pArea->cdPage, hb_vmCDP(), ulLen );
#endif
hb_itemPutCL( pItem, ( char *) (*pbMemoBuf), ulLen );
*pbMemoBuf += ulLen;
}
break;
case SMT_IT_INT:
if( bBufEnd - (*pbMemoBuf) < 4 )
{
errCode = EDBF_CORRUPT;
break;
}
hb_itemPutNInt( pItem, ( LONG ) HB_GET_LE_UINT32( *pbMemoBuf ) );
*pbMemoBuf += 4;
break;
case SMT_IT_DOUBLE:
if( bBufEnd - (*pbMemoBuf) < 10 )
{
errCode = EDBF_CORRUPT;
break;
}
iWidth = *(*pbMemoBuf)++;
iDec = *(*pbMemoBuf)++;
if( iDec )
iWidth -= iDec + 1;
hb_itemPutNDLen( pItem, HB_GET_LE_DOUBLE( *pbMemoBuf ), iWidth, iDec );
*pbMemoBuf += 8;
break;
case SMT_IT_DATE:
if( bBufEnd - (*pbMemoBuf) < 4 )
{
errCode = EDBF_CORRUPT;
break;
}
hb_itemPutDL( pItem, ( LONG ) HB_GET_LE_UINT32( *pbMemoBuf ) );
*pbMemoBuf += 4;
break;
case SMT_IT_LOGICAL:
if( bBufEnd - (*pbMemoBuf) < 1 )
{
errCode = EDBF_CORRUPT;
break;
}
hb_itemPutL( pItem, *(*pbMemoBuf)++ != 0 );
break;
case SMT_IT_NIL:
hb_itemClear( pItem );
break;
default:
hb_itemClear( pItem );
errCode = EDBF_CORRUPT;
break;
}
}
else
{
errCode = EDBF_CORRUPT;
}
return errCode;
}
/*
* Calculate the size of SIX memo item
*/
static ULONG hb_fptCountSixItemLength( FPTAREAP pArea, PHB_ITEM pItem,
ULONG * pulArrayCount )
{
ULONG ulLen, i, ulSize;
switch ( hb_itemType( pItem ) )
{
case HB_IT_ARRAY: /* HB_IT_OBJECT == HB_IT_ARRAY */
(*pulArrayCount)++;
ulSize = SIX_ITEM_BUFSIZE;
ulLen = hb_arrayLen( pItem );
if( pArea->uiMemoVersion == DB_MEMOVER_SIX )
{
/* only 2 bytes (SHORT) for SIX compatibility */
ulLen = HB_MIN( ulLen, 0xFFFF );
}
for( i = 1; i <= ulLen; i++ )
{
ulSize += hb_fptCountSixItemLength( pArea, hb_arrayGetItemPtr( pItem, i ), pulArrayCount );
}
break;
case HB_IT_MEMO:
case HB_IT_STRING:
ulSize = SIX_ITEM_BUFSIZE;
ulLen = hb_itemGetCLen( pItem );
if( pArea->uiMemoVersion == DB_MEMOVER_SIX && ulLen > 0xFFFF )
{
/* only 2 bytes (SHORT) for SIX compatibility */
ulLen = 0xFFFF;
}
ulSize += ulLen;
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
case HB_IT_DOUBLE:
case HB_IT_DATE:
case HB_IT_LOGICAL:
default:
ulSize = SIX_ITEM_BUFSIZE;
}
return ulSize;
}
/*
* Write fpt vartype as SIX memos.
*/
static ULONG hb_fptStoreSixItem( FPTAREAP pArea, PHB_ITEM pItem, BYTE ** bBufPtr )
{
ULONG ulLen, i, ulSize;
HB_LONG iVal;
LONG lVal;
double dVal;
int iWidth, iDec;
memset( *bBufPtr, '\0', SIX_ITEM_BUFSIZE );
ulSize = SIX_ITEM_BUFSIZE;
switch ( hb_itemType( pItem ) )
{
case HB_IT_ARRAY: /* HB_IT_OBJECT == HB_IT_ARRAY */
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_ARRAY );
ulLen = hb_arrayLen( pItem );
if( pArea->uiMemoVersion == DB_MEMOVER_SIX )
{
/* only 2 bytes (SHORT) for SIX compatibility */
ulLen = HB_MIN( ulLen, 0xFFFF );
}
HB_PUT_LE_UINT32( &(*bBufPtr)[2], ulLen );
*bBufPtr += SIX_ITEM_BUFSIZE;
for( i = 1; i <= ulLen; i++ )
{
ulSize += hb_fptStoreSixItem( pArea, hb_arrayGetItemPtr( pItem, i ), bBufPtr );
}
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
iVal = hb_itemGetNInt( pItem );
hb_itemGetNLen( pItem, &iWidth, &iDec );
if( HB_LIM_INT32( iVal ) )
{
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_LNUM );
HB_PUT_LE_UINT16( &(*bBufPtr)[2], iWidth );
HB_PUT_LE_UINT16( &(*bBufPtr)[4], iDec );
HB_PUT_LE_UINT32( &(*bBufPtr)[6], iVal );
*bBufPtr += SIX_ITEM_BUFSIZE;
}
else
{
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_DNUM );
HB_PUT_LE_UINT16( &(*bBufPtr)[2], iWidth );
HB_PUT_LE_UINT16( &(*bBufPtr)[4], iDec );
HB_PUT_LE_DOUBLE( &(*bBufPtr)[6], ( double ) iVal );
*bBufPtr += SIX_ITEM_BUFSIZE;
}
break;
case HB_IT_DOUBLE:
dVal = hb_itemGetND( pItem );
hb_itemGetNLen( pItem, &iWidth, &iDec );
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_DNUM );
HB_PUT_LE_UINT16( &(*bBufPtr)[2], iWidth );
HB_PUT_LE_UINT16( &(*bBufPtr)[4], iDec );
HB_PUT_LE_DOUBLE( &(*bBufPtr)[6], dVal );
*bBufPtr += SIX_ITEM_BUFSIZE;
break;
case HB_IT_DATE:
lVal = hb_itemGetDL( pItem );
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_LDATE );
HB_PUT_LE_UINT32( &(*bBufPtr)[6], lVal );
*bBufPtr += SIX_ITEM_BUFSIZE;
break;
case HB_IT_LOGICAL:
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_LOG );
(*bBufPtr)[6] = hb_itemGetL( pItem ) ? 1 : 0;
*bBufPtr += SIX_ITEM_BUFSIZE;
break;
case HB_IT_STRING:
case HB_IT_MEMO:
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_CHAR );
ulLen = hb_itemGetCLen( pItem );
if( pArea->uiMemoVersion == DB_MEMOVER_SIX && ulLen > 0xFFFF )
{
/* only 2 bytes (SHORT) for SIX compatibility */
ulLen = 0xFFFF;
}
HB_PUT_LE_UINT32( &(*bBufPtr)[2], ulLen );
*bBufPtr += SIX_ITEM_BUFSIZE;
if( ulLen > 0 )
{
memcpy( *bBufPtr, hb_itemGetCPtr( pItem ), ulLen );
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) *bBufPtr, hb_vmCDP(), pArea->cdPage, ulLen );
#endif
*bBufPtr += ulLen;
}
break;
default:
HB_PUT_LE_UINT16( &(*bBufPtr)[0], FPTIT_SIX_NIL );
*bBufPtr += SIX_ITEM_BUFSIZE;
break;
}
return ulSize;
}
/*
* Read SIX item from memo.
*/
static ERRCODE hb_fptReadSixItem( FPTAREAP pArea, BYTE ** pbMemoBuf, BYTE * bBufEnd, PHB_ITEM pItem )
{
USHORT usType;
ULONG ulLen, i;
ERRCODE errCode = SUCCESS;
ulLen = SIX_ITEM_BUFSIZE;
if( bBufEnd - (*pbMemoBuf) >= ( LONG ) ulLen )
{
usType = HB_GET_LE_UINT16( &(*pbMemoBuf)[0] );
switch ( usType )
{
case FPTIT_SIX_LNUM:
hb_itemPutNL( pItem, ( LONG ) HB_GET_LE_UINT32( &(*pbMemoBuf)[6] ) );
break;
case FPTIT_SIX_DNUM:
hb_itemPutNDLen( pItem, HB_GET_LE_DOUBLE( &(*pbMemoBuf)[6] ),
HB_GET_LE_UINT16( &(*pbMemoBuf)[2] ),
HB_GET_LE_UINT16( &(*pbMemoBuf)[4] ) );
break;
case FPTIT_SIX_LDATE:
hb_itemPutDL( pItem, ( LONG ) HB_GET_LE_UINT32( &(*pbMemoBuf)[6] ) );
break;
case FPTIT_SIX_LOG:
hb_itemPutL( pItem, HB_GET_LE_UINT16( &(*pbMemoBuf)[6] ) != 0 );
break;
case FPTIT_SIX_CHAR:
ulLen = HB_GET_LE_UINT32( &(*pbMemoBuf)[2] );
if( pArea->uiMemoVersion == DB_MEMOVER_SIX )
{
ulLen &= 0xFFFF; /* only 2 bytes (SHORT) for SIX compatibility */
}
(*pbMemoBuf) += SIX_ITEM_BUFSIZE;
if( bBufEnd - (*pbMemoBuf) >= ( LONG ) ulLen )
{
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) (*pbMemoBuf), pArea->cdPage, hb_vmCDP(), ulLen );
#endif
hb_itemPutCL( pItem, ( char *) (*pbMemoBuf), ulLen );
}
else
{
errCode = EDBF_CORRUPT;
}
break;
/*
case FPTIT_SIX_BLOCK:
case FPTIT_SIX_VREF:
case FPTIT_SIX_MREF:
*/
case FPTIT_SIX_ARRAY:
ulLen = HB_GET_LE_UINT32( &(*pbMemoBuf)[2] );
if( pArea->uiMemoVersion == DB_MEMOVER_SIX )
{
ulLen &= 0xFFFF; /* only 2 bytes (SHORT) for SIX compatibility */
}
(*pbMemoBuf) += SIX_ITEM_BUFSIZE;
hb_arrayNew( pItem, ulLen );
for( i = 1; i <= ulLen; i++ )
{
errCode = hb_fptReadSixItem( pArea, pbMemoBuf, bBufEnd,
hb_arrayGetItemPtr( pItem, i ) );
if( errCode != SUCCESS )
{
break;
}
}
ulLen = 0;
break;
case FPTIT_SIX_NIL:
hb_itemClear( pItem );
break;
default:
errCode = EDBF_CORRUPT;
hb_itemClear( pItem );
break;
}
*pbMemoBuf += ulLen;
}
else
{
errCode = EDBF_CORRUPT;
}
return errCode;
}
/*
* Calculate the size of FLEX memo item
*/
static ULONG hb_fptCountFlexItemLength( FPTAREAP pArea, PHB_ITEM pItem,
ULONG * pulArrayCount )
{
ULONG ulLen, i, ulSize = 1;
HB_LONG iVal;
switch ( hb_itemType( pItem ) )
{
case HB_IT_ARRAY:
(*pulArrayCount)++;
ulSize += 2;
ulLen = hb_arrayLen( pItem ) & 0xFFFF;
for( i = 1; i <= ulLen; i++ )
{
ulSize += hb_fptCountFlexItemLength( pArea, hb_arrayGetItemPtr( pItem, i ), pulArrayCount );
}
break;
case HB_IT_MEMO:
case HB_IT_STRING:
ulLen = hb_itemGetCLen( pItem );
if( ulLen > 0xFFFF )
ulLen = 0xFFFF;
if( ulLen > 0 )
ulSize += ulLen + 2;
break;
case HB_IT_DATE:
ulSize += 4;
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
iVal = hb_itemGetNInt( pItem );
ulSize += ( HB_LIM_INT8( iVal ) ? 2 :
( HB_LIM_INT16( iVal ) ? 3 :
( HB_LIM_INT32( iVal ) ? 5 : 10 ) ) );
break;
case HB_IT_DOUBLE:
ulSize += 10;
break;
}
return ulSize;
}
/*
* Store in buffer fpt vartype as FLEX memos.
*/
static void hb_fptStoreFlexItem( FPTAREAP pArea, PHB_ITEM pItem, BYTE ** bBufPtr )
{
ULONG ulLen, i;
HB_LONG iVal;
LONG lVal;
double dVal;
int iWidth, iDec;
switch ( hb_itemType( pItem ) )
{
case HB_IT_ARRAY:
ulLen = hb_arrayLen( pItem ) & 0xFFFF;
*(*bBufPtr)++ = FPTIT_FLEXAR_ARAY;
HB_PUT_LE_UINT16( *bBufPtr, ( USHORT ) ulLen );
*bBufPtr += 2;
for( i = 1; i <= ulLen; i++ )
{
hb_fptStoreFlexItem( pArea, hb_arrayGetItemPtr( pItem, i ), bBufPtr );
}
break;
case HB_IT_MEMO:
case HB_IT_STRING:
ulLen = hb_itemGetCLen( pItem );
if( ulLen > 0xFFFF )
ulLen = 0xFFFF;
if( ulLen == 0 )
{
*(*bBufPtr)++ = FPTIT_FLEXAR_NUL;
}
else
{
*(*bBufPtr)++ = FPTIT_FLEXAR_STR;
HB_PUT_LE_UINT16( *bBufPtr, ( USHORT ) ulLen );
*bBufPtr += 2;
memcpy( *bBufPtr, hb_itemGetCPtr( pItem ), ulLen );
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) *bBufPtr, hb_vmCDP(), pArea->cdPage, ulLen );
#endif
*bBufPtr += ulLen;
}
break;
case HB_IT_DATE:
*(*bBufPtr)++ = FPTIT_FLEXAR_DATEJ;
lVal = hb_itemGetDL( pItem );
HB_PUT_LE_UINT32( *bBufPtr, lVal );
*bBufPtr += 4;
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
iVal = hb_itemGetNInt( pItem );
hb_itemGetNLen( pItem, &iWidth, &iDec );
if( HB_LIM_INT8( iVal ) )
{
*(*bBufPtr)++ = FPTIT_FLEXAR_CHAR1;
*(*bBufPtr)++ = (BYTE) iVal;
*(*bBufPtr)++ = (BYTE) iWidth;
}
else if( HB_LIM_INT16( iVal ) )
{
*(*bBufPtr)++ = FPTIT_FLEXAR_SHORT1;
HB_PUT_LE_UINT16( *bBufPtr, iVal );
*bBufPtr += 2;
*(*bBufPtr)++ = (BYTE) iWidth;
}
else if( HB_LIM_INT32( iVal ) )
{
*(*bBufPtr)++ = FPTIT_FLEXAR_LONG1;
HB_PUT_LE_UINT32( *bBufPtr, iVal );
*bBufPtr += 4;
*(*bBufPtr)++ = (BYTE) iWidth;
}
else
{
*(*bBufPtr)++ = FPTIT_FLEXAR_DOUBLE2;
*(*bBufPtr)++ = (BYTE) iWidth;
*(*bBufPtr)++ = (BYTE) iDec;
HB_PUT_LE_DOUBLE( *bBufPtr, (double) iVal );
*bBufPtr += 8;
}
break;
case HB_IT_DOUBLE:
dVal = hb_itemGetND( pItem );
hb_itemGetNLen( pItem, &iWidth, &iDec );
if( iDec )
iWidth += iDec + 1;
*(*bBufPtr)++ = FPTIT_FLEXAR_DOUBLE2;
*(*bBufPtr)++ = (BYTE) iWidth;
*(*bBufPtr)++ = (BYTE) iDec;
HB_PUT_LE_DOUBLE( *bBufPtr, dVal );
*bBufPtr += 8;
break;
case HB_IT_LOGICAL:
*(*bBufPtr)++ = hb_itemGetL( pItem ) ?
FPTIT_FLEXAR_TRUE : FPTIT_FLEXAR_FALSE;
break;
case HB_IT_NIL:
default:
*(*bBufPtr)++ = FPTIT_FLEXAR_NIL;
}
}
/*
* Read FLEX item from memo.
*/
static ERRCODE hb_fptReadFlexItem( FPTAREAP pArea, BYTE ** pbMemoBuf, BYTE * bBufEnd, PHB_ITEM pItem, BOOL bRoot )
{
BYTE usType;
ULONG ulLen, i;
ERRCODE errCode = SUCCESS;
if( bRoot )
{
usType = FPTIT_FLEXAR_ARAY;
}
else if( bBufEnd - (*pbMemoBuf) > 0 )
{
usType = *(*pbMemoBuf)++;
}
else
{
return EDBF_CORRUPT;
}
switch ( usType )
{
case FPTIT_FLEXAR_NIL:
hb_itemClear( pItem );
break;
case FPTIT_FLEXAR_TRUE:
hb_itemPutL( pItem, TRUE );
break;
case FPTIT_FLEXAR_FALSE:
hb_itemPutL( pItem, FALSE );
break;
case FPTIT_FLEXAR_LOGIC:
if( bBufEnd - (*pbMemoBuf) >= 1 )
{
hb_itemPutL( pItem, *(*pbMemoBuf)++ != 0 );
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_DATEJ:
case FPTIT_FLEXAR_DATEX:
if( bBufEnd - (*pbMemoBuf) >= 4 )
{
hb_itemPutDL( pItem, ( LONG ) HB_GET_LE_UINT32( *pbMemoBuf ) );
*pbMemoBuf += 4;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_CHAR:
if( bBufEnd - (*pbMemoBuf) >= 1 )
{
hb_itemPutNI( pItem, ( signed char ) *(*pbMemoBuf)++ );
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_CHAR1:
if( bBufEnd - (*pbMemoBuf) >= 2 )
{
hb_itemPutNILen( pItem, ( signed char ) **pbMemoBuf, (*pbMemoBuf)[1] );
*pbMemoBuf += 2;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_CHAR2:
if( bBufEnd - (*pbMemoBuf) >= 3 )
{
int iLen = (*pbMemoBuf)[1], iDec = (*pbMemoBuf)[2];
if( iDec )
{
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, ( signed char ) **pbMemoBuf, iLen, iDec );
}
else
{
hb_itemPutNILen( pItem, ( signed char ) **pbMemoBuf, iLen );
}
*pbMemoBuf += 3;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_UCHAR:
if( bBufEnd - (*pbMemoBuf) >= 1 )
{
hb_itemPutNI( pItem, ( unsigned char ) *(*pbMemoBuf)++ );
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_UCHAR1:
if( bBufEnd - (*pbMemoBuf) >= 2 )
{
hb_itemPutNILen( pItem, ( unsigned char ) **pbMemoBuf, (*pbMemoBuf)[1] );
*pbMemoBuf += 2;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_UCHAR2:
if( bBufEnd - (*pbMemoBuf) >= 3 )
{
int iLen = (*pbMemoBuf)[1], iDec = (*pbMemoBuf)[2];
if( iDec )
{
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, ( unsigned char ) **pbMemoBuf, iLen, iDec );
}
else
{
hb_itemPutNILen( pItem, ( unsigned char ) **pbMemoBuf, iLen );
}
*pbMemoBuf += 3;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_SHORT:
if( bBufEnd - (*pbMemoBuf) >= 2 )
{
hb_itemPutNI( pItem, ( SHORT ) HB_GET_LE_UINT16( *pbMemoBuf ) );
*pbMemoBuf += 2;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_SHORT1:
if( bBufEnd - (*pbMemoBuf) >= 3 )
{
hb_itemPutNILen( pItem, ( SHORT ) HB_GET_LE_UINT16( *pbMemoBuf ),
(*pbMemoBuf)[2] );
*pbMemoBuf += 3;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_SHORT2:
if( bBufEnd - (*pbMemoBuf) >= 4 )
{
int iLen = (*pbMemoBuf)[2], iDec = (*pbMemoBuf)[3];
if( iDec )
{
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, ( SHORT ) HB_GET_LE_UINT16( *pbMemoBuf ), iLen, iDec );
}
else
{
hb_itemPutNILen( pItem, ( SHORT ) HB_GET_LE_UINT16( *pbMemoBuf ), iLen );
}
*pbMemoBuf += 4;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_USHORT:
if( bBufEnd - (*pbMemoBuf) >= 2 )
{
hb_itemPutNInt( pItem, ( USHORT ) HB_GET_LE_UINT16( *pbMemoBuf ) );
*pbMemoBuf += 2;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_USHORT1:
if( bBufEnd - (*pbMemoBuf) >= 3 )
{
hb_itemPutNIntLen( pItem, ( USHORT ) HB_GET_LE_UINT16( *pbMemoBuf ),
(*pbMemoBuf)[2] );
*pbMemoBuf += 3;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_USHORT2:
if( bBufEnd - (*pbMemoBuf) >= 4 )
{
int iLen = (*pbMemoBuf)[2], iDec = (*pbMemoBuf)[3];
if( iDec )
{
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, ( USHORT ) HB_GET_LE_UINT16( *pbMemoBuf ), iLen, iDec );
}
else
{
hb_itemPutNIntLen( pItem, ( USHORT ) HB_GET_LE_UINT16( *pbMemoBuf ), iLen );
}
*pbMemoBuf += 4;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_LONG:
if( bBufEnd - (*pbMemoBuf) >= 4 )
{
hb_itemPutNL( pItem, ( LONG ) HB_GET_LE_UINT32( *pbMemoBuf ) );
*pbMemoBuf += 4;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_LONG1:
if( bBufEnd - (*pbMemoBuf) >= 5 )
{
hb_itemPutNLLen( pItem, ( LONG ) HB_GET_LE_UINT32( *pbMemoBuf ),
(*pbMemoBuf)[4] );
*pbMemoBuf += 5;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_LONG2:
if( bBufEnd - (*pbMemoBuf) >= 6 )
{
int iLen = (*pbMemoBuf)[4], iDec = (*pbMemoBuf)[5];
if( iDec )
{
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, (LONG) HB_GET_LE_UINT32( *pbMemoBuf ), iLen, iDec );
}
else
{
hb_itemPutNLLen( pItem, (LONG) HB_GET_LE_UINT32( *pbMemoBuf ), iLen );
}
*pbMemoBuf += 6;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_ULONG2:
if( bBufEnd - (*pbMemoBuf) >= 6 )
{
int iLen = (*pbMemoBuf)[4], iDec = (*pbMemoBuf)[5];
if( iDec )
{
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, (ULONG) HB_GET_LE_UINT32( *pbMemoBuf ), iLen, iDec );
}
else
{
hb_itemPutNIntLen( pItem, (ULONG) HB_GET_LE_UINT32( *pbMemoBuf ), iLen );
}
*pbMemoBuf += 6;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_DOUBLE:
if( bBufEnd - (*pbMemoBuf) >= 8 )
{
hb_itemPutND( pItem, HB_GET_LE_DOUBLE( *pbMemoBuf ) );
*pbMemoBuf += 8;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_DOUBLE2:
if( bBufEnd - (*pbMemoBuf) >= 10 )
{
int iLen = (*pbMemoBuf)[0], iDec = (*pbMemoBuf)[1];
if( iDec )
iLen -= iDec + 1;
hb_itemPutNDLen( pItem, HB_GET_LE_DOUBLE( *pbMemoBuf + 2 ), iLen, iDec );
*pbMemoBuf += 10;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_LDOUBLE:
if( bBufEnd - (*pbMemoBuf) >= 10 )
{
/* TODO: write a cross platform converter from
10 digit long double to double */
hb_itemPutND( pItem, 0.0 /* HB_GET_LE_DOUBLE( *pbMemoBuf ) */ );
*pbMemoBuf += 10;
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_NUL:
hb_itemPutCL( pItem, NULL, 0);
break;
case FPTIT_FLEXAR_STR:
if( bBufEnd - (*pbMemoBuf) >= 2 )
{
ulLen = HB_GET_LE_UINT16( *pbMemoBuf );
*pbMemoBuf += 2;
if( bBufEnd - (*pbMemoBuf) >= ( LONG ) ulLen )
{
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) *pbMemoBuf, pArea->cdPage, hb_vmCDP(), ulLen );
#endif
hb_itemPutCL( pItem, ( char *) *pbMemoBuf, ulLen );
*pbMemoBuf += ulLen;
}
else
{
errCode = EDBF_CORRUPT;
}
}
else
{
errCode = EDBF_CORRUPT;
}
break;
case FPTIT_FLEXAR_ARAY:
if( bBufEnd - (*pbMemoBuf) >= 2 )
{
ulLen = HB_GET_LE_UINT16( *pbMemoBuf );
*pbMemoBuf += 2;
if( bBufEnd - (*pbMemoBuf) >= ( LONG ) ulLen )
{
hb_arrayNew( pItem, ulLen );
for( i = 1; i <= ulLen; i++ )
{
errCode = hb_fptReadFlexItem( pArea, pbMemoBuf, bBufEnd,
hb_arrayGetItemPtr( pItem, i ), FALSE );
if( errCode != SUCCESS )
{
break;
}
}
}
else
{
errCode = EDBF_CORRUPT;
}
}
else
{
errCode = EDBF_CORRUPT;
}
break;
default:
/* fprintf(stderr,"Uknown FLEX array item: 0x%x = %d\n", usType, usType); fflush(stderr); */
errCode = EDBF_CORRUPT;
hb_itemClear( pItem );
break;
}
return errCode;
}
static ERRCODE hb_fptCopyToFile( HB_FHANDLE hSrc, HB_FHANDLE hDst, HB_FOFFSET size )
{
ERRCODE errCode = SUCCESS;
if( size )
{
HB_FOFFSET written = 0;
ULONG ulBufSize, ulRead;
BYTE * pBuffer;
ulBufSize = ( ULONG ) HB_MIN( 0x10000, size );
pBuffer = ( BYTE * ) hb_xgrab( ulBufSize );
do
{
ulRead = hb_fsReadLarge( hSrc, pBuffer, ( ULONG )
HB_MIN( ( HB_FOFFSET ) ulBufSize, size - written ) );
if( ulRead <= 0 )
errCode = EDBF_READ;
else if( hb_fsWriteLarge( hDst, pBuffer, ulRead ) != ulRead )
errCode = EDBF_WRITE;
else
written += ulRead;
}
while( errCode == SUCCESS && written < size );
hb_xfree( pBuffer );
}
return errCode;
}
static ERRCODE hb_fptReadRawBlock( FPTAREAP pArea, BYTE * bBuffer, HB_FHANDLE hFile,
ULONG ulBlock, ULONG ulSize )
{
ERRCODE errCode = SUCCESS;
if( ulBlock == 0 )
return EDBF_CORRUPT;
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hFile != FS_ERROR )
{
errCode = hb_fptCopyToFile( pArea->hMemoFile, hFile, ulSize );
}
else
{
if( hb_fsReadLarge( pArea->hMemoFile, bBuffer, ulSize ) != ulSize )
errCode = EDBF_READ;
}
return errCode;
}
static ERRCODE hb_fptReadBlobBlock( FPTAREAP pArea, PHB_ITEM pItem,
HB_FHANDLE hFile, ULONG ulBlock,
USHORT uiMode )
{
ULONG ulSize;
BYTE buffer[ 4 ];
if( ulBlock == 0 )
return EDBF_CORRUPT;
/* TODO: uiMode => BLOB_IMPORT_COMPRESS, BLOB_IMPORT_ENCRYPT */
HB_SYMBOL_UNUSED( uiMode );
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsReadLarge( pArea->hMemoFile, buffer, 4 ) != 4 )
return EDBF_READ;
ulSize = HB_GET_LE_UINT32( buffer );
if( hFile != FS_ERROR )
return hb_fptCopyToFile( pArea->hMemoFile, hFile, ulSize );
if( ulSize == 0 )
hb_itemPutC( pItem, NULL );
else
{
BYTE * bBuffer = ( BYTE * ) hb_xalloc( ulSize + 1 );
if( !bBuffer )
{
/* in most cases this means that file is corrupted */
return EDBF_CORRUPT;
}
if( hb_fsReadLarge( pArea->hMemoFile, bBuffer, ulSize ) != ulSize )
{
hb_xfree( bBuffer );
return EDBF_READ;
}
hb_itemPutCLPtr( pItem, ( char * ) bBuffer, ulSize );
}
return SUCCESS;
}
static ERRCODE hb_fptReadSMTBlock( FPTAREAP pArea, PHB_ITEM pItem,
ULONG ulBlock, ULONG ulSize )
{
if( ulBlock == 0 )
return EDBF_CORRUPT;
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( ulSize == 0 )
{
return hb_fptReadRawSMTItem( pArea, pItem );
}
else
{
ERRCODE errCode;
BYTE * bBuffer = ( BYTE * ) hb_xalloc( ulSize ), * bMemoBuf;
if( !bBuffer )
{
/* in most cases this means that file is corrupted */
return EDBF_CORRUPT;
}
if( hb_fsReadLarge( pArea->hMemoFile, bBuffer, ulSize ) != ulSize )
{
errCode = EDBF_READ;
}
else
{
bMemoBuf = bBuffer;
errCode = hb_fptReadSMTItem( pArea, &bMemoBuf, bMemoBuf + ulSize, pItem );
}
hb_xfree( bBuffer );
return errCode;
}
}
/*
* Read fpt vartype memos.
*/
static ERRCODE hb_fptGetMemo( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem,
HB_FHANDLE hFile, ULONG ulBlock, ULONG ulStart,
ULONG ulCount )
{
ERRCODE errCode;
ULONG ulSize = 0, ulType = 0;
BYTE * pBuffer, * bMemoBuf;
FPTBLOCK fptBlock;
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetMemo(%p, %hu, %p, %p, %lu, %lu)", pArea, uiIndex, pItem, hFile, ulStart, ulCount));
if( uiIndex )
{
errCode = hb_dbfGetMemoData( ( DBFAREAP ) pArea, uiIndex - 1,
&ulBlock, &ulSize, &ulType );
}
else if( ! hb_fptHasDirectAccess( pArea ) )
{
errCode = EDBF_UNSUPPORTED;
}
else
{
errCode = SUCCESS;
}
if( errCode != SUCCESS )
return errCode;
if( ulBlock > 0 )
{
if( pArea->bMemoType == DB_MEMO_FPT )
{
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) )
{
return EDBF_READ;
}
ulType = HB_GET_BE_UINT32( fptBlock.type );
ulSize = HB_GET_BE_UINT32( fptBlock.size );
}
else
{
if( pArea->bMemoType == DB_MEMO_DBT )
{
ulSize = hb_fptGetMemoLen( pArea, uiIndex );
ulType = FPTIT_BINARY;
}
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
}
if( ulStart || ulCount )
{
if( pArea->bMemoType == DB_MEMO_FPT )
{
if( ulType != FPTIT_TEXT && ulType != FPTIT_PICT )
ulStart = ulCount = 0;
}
else if( pArea->bMemoType == DB_MEMO_SMT )
{
if( ulType != SMT_IT_CHAR )
ulStart = ulCount = 0;
}
}
if( ulStart >= ulSize )
ulSize = 0;
else
ulSize -= ulStart;
if( ulCount && ulCount < ulSize )
ulSize = ulCount;
if( ulStart && ulSize )
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulStart, FS_RELATIVE );
if( hFile != FS_ERROR )
{
return hb_fptCopyToFile( pArea->hMemoFile, hFile, ulSize );
}
if( pArea->bMemoType == DB_MEMO_FPT )
{
pBuffer = ( BYTE * ) hb_xalloc( HB_MAX( ulSize + 1, 8 ) );
if( pBuffer )
memset( pBuffer, '\0', 8 );
}
else
{
pBuffer = ( BYTE * ) hb_xalloc( ulSize + 1 );
}
if( !pBuffer )
{
/* in most cases this means that file is corrupted */
return EDBF_CORRUPT;
}
if( ulSize != 0 && hb_fsReadLarge( pArea->hMemoFile, pBuffer, ulSize ) != ulSize )
{
errCode = EDBF_READ;
}
else if( pArea->bMemoType == DB_MEMO_DBT )
{
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) pBuffer, pArea->cdPage, hb_vmCDP(), ulSize );
#endif
pBuffer[ ulSize ] = '\0';
hb_itemPutCLPtr( pItem, ( char * ) pBuffer, ulSize );
hb_itemSetCMemo( pItem );
pBuffer = NULL;
}
else if( pArea->bMemoType == DB_MEMO_SMT )
{
if( ulType == SMT_IT_CHAR )
{
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) pBuffer, pArea->cdPage, hb_vmCDP(), ulSize );
#endif
pBuffer[ ulSize ] = '\0';
hb_itemPutCLPtr( pItem, ( char * ) pBuffer, ulSize );
hb_itemSetCMemo( pItem );
pBuffer = NULL;
}
else if( !ulSize || pBuffer[ 0 ] != ( BYTE ) ulType )
{
errCode = EDBF_CORRUPT;
hb_itemClear( pItem );
}
else
{
bMemoBuf = pBuffer;
errCode = hb_fptReadSMTItem( pArea, &bMemoBuf, bMemoBuf + ulSize, pItem );
}
}
else
{
switch( ulType )
{
case FPTIT_SIX_LNUM:
case FPTIT_SIX_DNUM:
case FPTIT_SIX_LDATE:
case FPTIT_SIX_LOG:
case FPTIT_SIX_CHAR:
case FPTIT_SIX_ARRAY:
/*
case FPTIT_SIX_BLOCK:
case FPTIT_SIX_VREF:
case FPTIT_SIX_MREF:
*/
bMemoBuf = pBuffer;
errCode = hb_fptReadSixItem( pArea, &bMemoBuf, bMemoBuf + ulSize, pItem );
break;
case FPTIT_FLEX_ARRAY:
bMemoBuf = pBuffer;
errCode = hb_fptReadFlexItem( pArea, &bMemoBuf, bMemoBuf + ulSize, pItem, TRUE );
break;
case FPTIT_FLEX_NIL:
hb_itemClear( pItem );
break;
case FPTIT_FLEX_TRUE:
hb_itemPutL( pItem, TRUE );
break;
case FPTIT_FLEX_FALSE:
hb_itemPutL( pItem, FALSE );
break;
case FPTIT_FLEX_LDATE:
hb_itemPutDL( pItem, (LONG) HB_GET_LE_UINT32( pBuffer ) );
break;
case FPTIT_FLEX_CHAR:
hb_itemPutNI( pItem, (signed char) pBuffer[0] );
break;
case FPTIT_FLEX_UCHAR:
hb_itemPutNI( pItem, (BYTE) pBuffer[0] );
break;
case FPTIT_FLEX_SHORT:
hb_itemPutNI( pItem, (SHORT) HB_GET_LE_UINT16( pBuffer ) );
break;
case FPTIT_FLEX_USHORT:
hb_itemPutNInt( pItem, HB_GET_LE_UINT16( pBuffer ) );
break;
case FPTIT_FLEX_LONG:
hb_itemPutNL( pItem, (LONG) HB_GET_LE_UINT32( pBuffer ) );
break;
case FPTIT_FLEX_ULONG:
hb_itemPutNInt( pItem, HB_GET_LE_UINT32( pBuffer ) );
break;
case FPTIT_FLEX_DOUBLE:
hb_itemPutND( pItem, HB_GET_LE_DOUBLE( pBuffer ) );
break;
case FPTIT_FLEX_LDOUBLE:
/* TODO: write a cross platform converter from
10 digit long double to double */
hb_itemPutND( pItem, 0.0 /* HB_GET_LE_DOUBLE( pBuffer ) */ );
break;
case FPTIT_TEXT:
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char *) pBuffer, pArea->cdPage, hb_vmCDP(), ulSize );
#endif
pBuffer[ ulSize ] = '\0';
hb_itemPutCLPtr( pItem, ( char * ) pBuffer, ulSize );
hb_itemSetCMemo( pItem );
pBuffer = NULL;
break;
case FPTIT_PICT:
pBuffer[ ulSize ] = '\0';
hb_itemPutCLPtr( pItem, ( char * ) pBuffer, ulSize );
pBuffer = NULL;
break;
default:
hb_itemClear( pItem );
break;
}
}
if( pBuffer )
hb_xfree(pBuffer);
}
else
{
hb_itemPutC( pItem, NULL );
hb_itemSetCMemo( pItem );
}
return errCode;
}
/*
* Write memo data.
*/
static ERRCODE hb_fptWriteMemo( FPTAREAP pArea, ULONG ulBlock, ULONG ulSize,
BYTE *bBufPtr, HB_FHANDLE hFile,
ULONG ulType, ULONG ulLen, ULONG * ulStoredBlock )
{
MEMOGCTABLE fptGCtable;
ERRCODE errCode;
BOOL bWrite;
HB_TRACE(HB_TR_DEBUG, ("hb_fptWriteMemo(%p, %lu, %lu, %p, %p, %hu, %lu, %p)",
pArea, ulBlock, ulSize, bBufPtr, hFile, ulType, ulLen, ulStoredBlock));
bWrite = ( ulLen != 0 || ( pArea->bMemoType == DB_MEMO_FPT &&
ulType != FPTIT_TEXT && ulType != FPTIT_BINARY &&
ulType != FPTIT_DUMMY ) );
if( ulBlock == 0 && !bWrite )
{
* ulStoredBlock = 0;
return SUCCESS;
}
hb_fptInitGCdata( &fptGCtable );
errCode = hb_fptReadGCdata( pArea, &fptGCtable );
if( errCode != SUCCESS )
{
return errCode;
}
if( ulBlock > 0 )
{
errCode = hb_fptGCfreeBlock( pArea, &fptGCtable, ulBlock, ulSize,
ulType == FPTIT_DUMMY );
if( errCode != SUCCESS )
{
hb_fptDestroyGCdata( &fptGCtable );
return errCode;
}
}
/* Write memo header and data */
if( bWrite )
{
errCode = hb_fptGCgetFreeBlock( pArea, &fptGCtable, ulStoredBlock, ulLen,
ulType == FPTIT_DUMMY );
if( errCode != SUCCESS )
{
hb_fptDestroyGCdata( &fptGCtable );
return errCode;
}
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) *ulStoredBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( pArea->bMemoType == DB_MEMO_FPT && ulType != FPTIT_DUMMY )
{
FPTBLOCK fptBlock;
HB_PUT_BE_UINT32( fptBlock.type, ulType );
HB_PUT_BE_UINT32( fptBlock.size, ulLen );
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) != sizeof( FPTBLOCK ) )
errCode = EDBF_WRITE;
}
if( errCode == SUCCESS && ulLen > 0 )
{
/* TODO: uiMode => BLOB_IMPORT_COMPRESS, BLOB_IMPORT_ENCRYPT */
if( hFile != FS_ERROR )
{
ULONG ulWritten = 0, ulRead, ulBufSize = HB_MIN( ( 1 << 16 ), ulLen );
BYTE * bBuffer = ( BYTE * ) hb_xgrab( ulBufSize );
do
{
ulRead = hb_fsReadLarge( hFile, bBuffer,
HB_MIN( ulBufSize, ulLen - ulWritten ) );
if( ulRead <= 0 )
errCode = EDBF_READ;
else if( hb_fsWriteLarge( pArea->hMemoFile, bBuffer,
ulRead ) != ulRead )
errCode = EDBF_WRITE;
else
ulWritten += ulRead;
}
while( errCode == SUCCESS && ulWritten < ulLen );
hb_xfree(bBuffer);
}
else if( hb_fsWriteLarge( pArea->hMemoFile, bBufPtr, ulLen ) != ulLen )
{
errCode = EDBF_WRITE;
}
}
/* if written block is smaller then block size we should write at last
block byte 0xAF to be FLEX compatible */
if( errCode == SUCCESS )
{
if( pArea->bMemoType == DB_MEMO_DBT )
{
hb_fsWrite( pArea->hMemoFile, ( BYTE * ) "\x1A\x1A", 2 );
}
else if( pArea->uiMemoVersion == DB_MEMOVER_FLEX &&
( ulLen + sizeof( FPTBLOCK ) ) % pArea->uiMemoBlockSize != 0 )
{
ULONG ulBlocks = ( ulLen + sizeof( FPTBLOCK ) + pArea->uiMemoBlockSize - 1 ) /
pArea->uiMemoBlockSize;
hb_fsSeekLarge( pArea->hMemoFile,
( HB_FOFFSET ) ( *ulStoredBlock + ulBlocks ) *
( HB_FOFFSET ) pArea->uiMemoBlockSize - 1, FS_SET );
hb_fsWrite( pArea->hMemoFile, ( BYTE * ) "\xAF", 1 );
}
}
pArea->fMemoFlush = TRUE;
}
else
{
* ulStoredBlock = 0;
}
if( errCode == SUCCESS )
{
errCode = hb_fptWriteGCdata( pArea, &fptGCtable );
}
hb_fptDestroyGCdata( &fptGCtable );
return errCode;
}
/*
* Assign a value to the specified memo field.
*/
static ERRCODE hb_fptPutMemo( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem,
ULONG * pulBlock )
{
ULONG ulBlock = 0, ulSize, ulType, ulOldSize = 0, ulOldType = 0, ulArrayCount = 0;
BYTE itmBuffer[FLEX_ITEM_BUFSIZE];
BYTE *bBufPtr = NULL, *bBufAlloc = NULL;
ERRCODE errCode;
HB_LONG iVal;
LONG lVal;
HB_TRACE(HB_TR_DEBUG, ("hb_fptPutMemo(%p, %hu, %p, %p)", pArea, uiIndex, pItem, pulBlock));
if( HB_IS_STRING( pItem ) )
{
ulType = FPTIT_TEXT;
ulSize = hb_itemGetCLen( pItem );
bBufPtr = ( BYTE *) hb_itemGetCPtr( pItem );
#ifndef HB_CDP_SUPPORT_OFF
if( ulSize > 0 && pArea->cdPage != hb_vmCDP() )
{
bBufAlloc = ( BYTE * ) hb_xgrab( ulSize );
memcpy( bBufAlloc, bBufPtr, ulSize );
hb_cdpnTranslate( ( char *) bBufAlloc, hb_vmCDP(), pArea->cdPage, ulSize );
bBufPtr = bBufAlloc;
}
if( pArea->bMemoType == DB_MEMO_SMT )
{
ulType = SMT_IT_CHAR;
}
#endif
}
else if( pArea->bMemoType == DB_MEMO_DBT )
{
return EDBF_DATATYPE;
}
else if( pArea->bMemoType == DB_MEMO_SMT )
{
ulSize = hb_fptCountSMTItemLength( pArea, pItem, &ulArrayCount );
if( ulSize == 0 )
return EDBF_DATATYPE;
bBufPtr = bBufAlloc = ( BYTE * ) hb_xgrab( ulSize );
hb_fptStoreSMTItem( pArea, pItem, &bBufPtr );
ulType = ( ULONG ) bBufAlloc[ 0 ];
bBufPtr = bBufAlloc;
}
else if( pArea->uiMemoVersion == DB_MEMOVER_SIX )
{
if( HB_IS_NIL( pItem ) )
{
ulType = FPTIT_SIX_NIL;
ulSize = 0;
}
else
{
ulSize = hb_fptCountSixItemLength( pArea, pItem, &ulArrayCount );
if( ulSize > 0 )
{
bBufPtr = bBufAlloc = ( BYTE * ) hb_xgrab( ulSize );
hb_fptStoreSixItem( pArea, pItem, &bBufPtr );
ulType = ( ULONG ) HB_GET_LE_UINT16( bBufAlloc );
bBufPtr = bBufAlloc;
}
else
{
return EDBF_DATATYPE;
}
}
}
else if( pArea->uiMemoVersion == DB_MEMOVER_FLEX )
{
switch ( hb_itemType( pItem ) )
{
case HB_IT_ARRAY:
ulType = FPTIT_FLEX_ARRAY;
ulSize = hb_fptCountFlexItemLength( pArea, pItem, &ulArrayCount ) - 1;
if( ulSize > 0 )
{
bBufPtr = bBufAlloc = (BYTE *) hb_xgrab( ulSize + 1 );
hb_fptStoreFlexItem( pArea, pItem, &bBufPtr );
bBufPtr = bBufAlloc + 1; /* FLEX doesn't store the first byte of array ID */
}
break;
case HB_IT_NIL:
ulType = FPTIT_FLEX_NIL;
ulSize = 0;
break;
case HB_IT_LOGICAL:
ulType = hb_itemGetL( pItem ) ? FPTIT_FLEX_TRUE : FPTIT_FLEX_FALSE;
ulSize = 0;
break;
case HB_IT_DATE:
ulType = FPTIT_FLEX_LDATE;
ulSize = 4;
lVal = hb_itemGetDL( pItem );
HB_PUT_LE_UINT32( itmBuffer, lVal );
bBufPtr = itmBuffer;
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
iVal = hb_itemGetNInt( pItem );
if( HB_LIM_INT8( iVal ) )
{
ulType = FPTIT_FLEX_CHAR;
ulSize = 1;
*itmBuffer = ( BYTE ) iVal;
bBufPtr = itmBuffer;
}
else if( HB_LIM_INT16( iVal ) )
{
ulType = FPTIT_FLEX_SHORT;
ulSize = 2;
HB_PUT_LE_UINT16( itmBuffer, iVal );
bBufPtr = itmBuffer;
}
else if( HB_LIM_INT32( iVal ) )
{
ulType = FPTIT_FLEX_LONG;
ulSize = 4;
HB_PUT_LE_UINT32( itmBuffer, iVal );
bBufPtr = itmBuffer;
}
else
{
double d = (double) iVal;
ulType = FPTIT_FLEX_DOUBLE;
ulSize = 8;
HB_PUT_LE_DOUBLE( itmBuffer, d );
bBufPtr = itmBuffer;
}
break;
case HB_IT_DOUBLE:
{
double d = hb_itemGetND( pItem );
ulType = FPTIT_FLEX_DOUBLE;
ulSize = 8;
HB_PUT_LE_DOUBLE( itmBuffer, d );
bBufPtr = itmBuffer;
break;
}
default:
ulType = FPTIT_BINARY;
ulSize = 0;
break;
}
}
else
{
return EDBF_DATATYPE;
}
if( uiIndex )
{
errCode = hb_dbfGetMemoData( (DBFAREAP) pArea, uiIndex - 1,
&ulBlock, &ulOldSize, &ulOldType );
}
else if( !pulBlock || ! hb_fptHasDirectAccess( pArea ) )
{
errCode = EDBF_UNSUPPORTED;
}
else
{
ulBlock = *pulBlock;
errCode = SUCCESS;
}
if( errCode == SUCCESS )
errCode = hb_fptWriteMemo( pArea, ulBlock, ulOldSize, bBufPtr, FS_ERROR,
ulType, ulSize, &ulBlock );
if( bBufAlloc != NULL )
{
hb_xfree( bBufAlloc );
}
if( errCode == SUCCESS )
{
if( uiIndex )
hb_dbfSetMemoData( (DBFAREAP) pArea, uiIndex - 1, ulBlock, ulSize, ulType );
else
*pulBlock = ulBlock;
}
return errCode;
}
#ifdef HB_MEMO_SAFELOCK
/*
* Check if memo field has any data
*/
static BOOL hb_fptHasMemoData( FPTAREAP pArea, USHORT uiIndex )
{
if( --uiIndex < pArea->uiFieldCount )
{
LPFIELD pField = pArea->lpFields + uiIndex;
if( pField->uiType == HB_FT_ANY )
{
if( pField->uiLen >= 6 )
{
BYTE * pFieldBuf = pArea->pRecord + pArea->pFieldOffset[ uiIndex ];
USHORT uiType = HB_GET_LE_UINT16( pFieldBuf + pField->uiLen - 2 );
switch( uiType )
{
case HB_VF_ARRAY:
case HB_VF_BLOB:
case HB_VF_BLOBCOMPRESS:
case HB_VF_BLOBENCRYPT:
return TRUE;
case HB_VF_DNUM:
return pField->uiLen <= 12;
default:
return uiType <= HB_VF_CHAR && pField->uiLen - 2 < uiType;
}
}
}
else if( pField->uiType == HB_FT_MEMO ||
pField->uiType == HB_FT_IMAGE ||
pField->uiType == HB_FT_BLOB ||
pField->uiType == HB_FT_OLE )
{
BYTE * pFieldBuf = pArea->pRecord + pArea->pFieldOffset[ uiIndex ];
USHORT uiLen = pField->uiLen;
if( uiLen == 4 )
return HB_GET_LE_UINT32( pFieldBuf ) != 0;
if( uiLen == 10 )
{
if( pArea->bMemoType == DB_MEMO_SMT )
return HB_GET_LE_UINT32( ( ( LPSMTFIELD ) pFieldBuf )->block ) != 0;
do
{
if( *pFieldBuf >= '1' && *pFieldBuf <= '9' )
return TRUE;
++pFieldBuf;
}
while( --uiLen );
}
}
}
return FALSE;
}
#endif
static ERRCODE hb_fptLockForRead( FPTAREAP pArea, USHORT uiIndex, BOOL *fUnLock )
{
ERRCODE uiError;
BOOL fLocked;
*fUnLock = FALSE;
#ifdef HB_MEMO_SAFELOCK
if( pArea->lpdbPendingRel )
{
uiError = SELF_FORCEREL( ( AREAP ) pArea );
if( uiError != SUCCESS )
return uiError;
}
if( ( uiIndex > 0 && pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_ANY &&
pArea->lpFields[ uiIndex - 1 ].uiLen < 6 ) ||
!pArea->fPositioned || !pArea->fShared ||
pArea->fFLocked || pArea->fRecordChanged )
{
fLocked = TRUE;
}
else
{
PHB_ITEM pRecNo = hb_itemNew( NULL ), pResult = hb_itemNew( NULL );
uiError = SELF_RECINFO( ( AREAP ) pArea, pRecNo, DBRI_LOCKED, pResult );
fLocked = hb_itemGetL( pResult );
hb_itemRelease( pRecNo );
hb_itemRelease( pResult );
if( uiError != SUCCESS )
return uiError;
}
if( !fLocked )
{
if( !pArea->fValidBuffer || uiIndex == 0 ||
hb_fptHasMemoData( pArea, uiIndex ) )
{
if( !hb_fptFileLockSh( pArea, TRUE ) )
return FAILURE;
*fUnLock = TRUE;
pArea->fValidBuffer = FALSE;
}
}
#else
HB_SYMBOL_UNUSED( uiIndex );
#endif
/* update any pending relations and reread record if necessary */
uiError = SELF_DELETED( ( AREAP ) pArea, &fLocked );
return uiError;
}
static ERRCODE hb_fptGetVarField( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem, HB_FHANDLE hFile )
{
LPFIELD pField;
ERRCODE uiError;
BYTE * pFieldBuf;
BOOL fUnLock = FALSE;
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetVarField(%p, %hu, %p, %p)", pArea, uiIndex, pItem, hFile));
pField = pArea->lpFields + uiIndex - 1;
if( pField->uiType == HB_FT_ANY )
{
USHORT uiType;
uiError = hb_fptLockForRead( pArea, uiIndex, &fUnLock );
if( uiError != SUCCESS )
return uiError;
pFieldBuf = pArea->pRecord + pArea->pFieldOffset[ uiIndex - 1 ];
if( pField->uiLen >= 6 )
uiType = HB_GET_LE_UINT16( pFieldBuf + pField->uiLen - 2 );
else
uiType = 0;
if( pField->uiLen == 3 || uiType == HB_VF_DATE )
hb_itemPutDL( pItem, hb_sxPtoD( ( char * ) pFieldBuf ) );
else if( pField->uiLen == 4 || uiType == HB_VF_INT )
hb_itemPutNIntLen( pItem, ( HB_LONG ) HB_GET_LE_INT32( pFieldBuf ), 10 );
else if( pField->uiLen == 2 )
hb_itemPutNIntLen( pItem, ( int ) HB_GET_LE_INT16( pFieldBuf ), 10 );
else if( pField->uiLen == 1 )
hb_itemPutNILen( pItem, ( signed char ) pFieldBuf[ 0 ], 4 );
else if( pField->uiLen >= 6 )
{
ULONG ulBlock = HB_GET_LE_UINT32( pFieldBuf + pField->uiLen - 6 );
if( uiType <= HB_VF_CHAR ) /* 64000 max string size */
{
char * pString = ( char * ) hb_xgrab( uiType + 1 ), * pBuf;
pBuf = pString;
if( uiType <= pField->uiLen - 2 )
memcpy( pString, pFieldBuf, uiType );
else
{
ULONG ulSize = uiType;
if( pField->uiLen > 6 )
{
USHORT uiVLen = pField->uiLen - 6;
memcpy( pBuf, pFieldBuf, uiVLen );
ulSize -= uiVLen;
pBuf += uiVLen;
}
uiError = hb_fptReadRawBlock( pArea, ( BYTE * ) pBuf, FS_ERROR, ulBlock, ulSize );
}
if( uiError == SUCCESS )
{
pString[ uiType ] = '\0';
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( pString, pArea->cdPage, hb_vmCDP(), uiType );
#endif
if( hFile != FS_ERROR )
{
if( hb_fsWrite( hFile, ( BYTE * ) pString, uiType ) != uiType )
uiError = EDBF_WRITE;
hb_xfree( pString );
}
else
{
hb_itemPutCLPtr( pItem, pString, uiType );
}
}
else
hb_xfree( pString );
}
else if( uiType == HB_VF_LOG )
{
if( hFile != FS_ERROR )
uiError = EDBF_DATATYPE;
else
hb_itemPutL( pItem, pFieldBuf[ 0 ] != 0 );
}
else if( uiType == HB_VF_DNUM ) /* n>12 VFIELD else MEMO (bLen[1],bDec[1],dVal[8]) */
{
if( hFile != FS_ERROR )
uiError = EDBF_DATATYPE;
else
{
BYTE pBuffer[ 11 ];
int iWidth, iDec;
/* should be <= 11 - it's SIX bug but I replicated it for
compatibility */
if( pField->uiLen <= 12 )
{
uiError = hb_fptReadRawBlock( pArea, pBuffer, FS_ERROR, ulBlock, 11 );
if( uiError == SUCCESS )
{
if( pBuffer[ 0 ] == SMT_IT_DOUBLE )
pFieldBuf = pBuffer + 1;
else
uiError = EDBF_CORRUPT;
}
}
if( uiError == SUCCESS )
{
iWidth = *pFieldBuf++;
iDec = *pFieldBuf++;
if( iDec )
iWidth += iDec + 1;
hb_itemPutNDLen( pItem, HB_GET_LE_DOUBLE( pFieldBuf ), iWidth, iDec );
}
}
}
else if( uiType == HB_VF_ARRAY ) /* MEMO only as SMT ARRAY */
{
if( hFile != FS_ERROR )
uiError = EDBF_DATATYPE;
else
uiError = hb_fptReadSMTBlock( pArea, pItem, ulBlock, 0 );
}
else if( uiType == HB_VF_BLOB )
uiError = hb_fptReadBlobBlock( pArea, pItem, hFile, ulBlock, 0 );
else if( uiType == HB_VF_BLOBCOMPRESS )
uiError = hb_fptReadBlobBlock( pArea, pItem, hFile, ulBlock, BLOB_IMPORT_COMPRESS );
else if( uiType == HB_VF_BLOBENCRYPT )
uiError = hb_fptReadBlobBlock( pArea, pItem, hFile, ulBlock, BLOB_IMPORT_ENCRYPT );
else
uiError = EDBF_DATATYPE;
}
}
else if( pField->uiType == HB_FT_MEMO ||
pField->uiType == HB_FT_IMAGE ||
pField->uiType == HB_FT_BLOB ||
pField->uiType == HB_FT_OLE )
{
uiError = hb_fptLockForRead( pArea, uiIndex, &fUnLock );
if( uiError != SUCCESS )
return uiError;
uiError = hb_fptGetMemo( pArea, uiIndex, pItem, hFile, 0, 0, 0 );
}
else if( hFile == FS_ERROR )
{
return SUPER_GETVALUE( ( AREAP ) pArea, uiIndex, pItem );
}
else
{
return FAILURE;
}
if( fUnLock )
hb_fptFileUnLock( pArea );
return uiError;
}
static ERRCODE hb_fptGetVarFile( FPTAREAP pArea, ULONG ulBlock, BYTE * szFile, USHORT uiMode )
{
USHORT uiError;
HB_FHANDLE hFile;
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetVarFile(%p, %lu, %s, %hu)", pArea, ulBlock, szFile, uiMode));
hFile = hb_fsExtOpen( szFile, NULL, FO_WRITE | FO_EXCLUSIVE |
FXO_DEFAULTS | FXO_SHARELOCK |
( uiMode == FILEGET_APPEND ?
FXO_APPEND : FXO_TRUNCATE ),
NULL, NULL );
if( hFile == FS_ERROR )
{
uiError = uiMode != FILEGET_APPEND ? EDBF_CREATE : EDBF_OPEN_DBF;
}
else
{
hb_fsSeekLarge( hFile, 0, FS_END );
uiError = hb_fptGetMemo( pArea, 0, NULL, hFile, ulBlock, 0, 0 );
hb_fsClose( hFile );
}
/* Exit if any error */
if( uiError != SUCCESS )
{
if( uiError != FAILURE )
{
hb_memoErrorRT( pArea, 0, uiError,
uiError == EDBF_OPEN_DBF || uiError == EDBF_CREATE ||
uiError == EDBF_WRITE ? ( char * ) szFile :
pArea->szMemoFileName, 0, 0 );
}
return FAILURE;
}
return SUCCESS;
}
static ULONG hb_fptPutVarFile( FPTAREAP pArea, ULONG ulBlock, BYTE * szFile )
{
USHORT uiError;
HB_FHANDLE hFile;
HB_TRACE(HB_TR_DEBUG, ("hb_fptPutVarFile(%p, %lu, %s)", pArea, ulBlock, szFile));
hFile = hb_fsExtOpen( szFile, NULL, FO_READ | FO_DENYNONE |
FXO_DEFAULTS | FXO_SHARELOCK, NULL, NULL );
if( hFile == FS_ERROR )
{
uiError = EDBF_OPEN_DBF;
}
else
{
ULONG ulSize;
HB_FOFFSET size = hb_fsSeekLarge( hFile, 0, FS_END );
hb_fsSeek( hFile, 0, FS_SET );
if( ( HB_FOFFSET ) ( size & 0xFFFFFFFFUL ) == size )
ulSize = HB_MIN( ( ULONG ) size, 0xFFFFFFFFUL - sizeof( FPTBLOCK ) );
else
ulSize = ( ULONG ) HB_MIN( size, ( HB_FOFFSET ) ( 0xFFFFFFFFUL - sizeof( FPTBLOCK ) ) );
if( hb_fptFileLockEx( pArea, TRUE ) )
{
uiError = hb_fptWriteMemo( pArea, ulBlock, 0, NULL, hFile,
0, ulSize, &ulBlock );
hb_fptFileUnLock( pArea );
}
else
{
uiError = EDBF_LOCK;
}
hb_fsClose( hFile );
}
if( uiError != SUCCESS )
{
hb_memoErrorRT( pArea, 0, uiError,
uiError == EDBF_OPEN_DBF || uiError == EDBF_READ ?
( char * ) szFile : pArea->szMemoFileName, 0, 0 );
ulBlock = 0;
}
return ulBlock;
}
static ERRCODE hb_fptPutVarField( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem )
{
LPFIELD pField;
HB_TRACE(HB_TR_DEBUG, ("hb_fptPutVarField(%p, %hu, %p)", pArea, uiIndex, pItem));
pField = pArea->lpFields + uiIndex - 1;
if( pField->uiType == HB_FT_ANY ||
pField->uiType == HB_FT_MEMO ||
pField->uiType == HB_FT_IMAGE ||
pField->uiType == HB_FT_BLOB ||
pField->uiType == HB_FT_OLE )
{
BYTE * pFieldBuf = pArea->pRecord + pArea->pFieldOffset[ uiIndex - 1 ];
ERRCODE uiError;
BOOL bDeleted;
/* update any pending relations and reread record if necessary */
uiError = SELF_DELETED( ( AREAP ) pArea, &bDeleted );
if( uiError != SUCCESS )
return uiError;
if( !pArea->fPositioned )
return SUCCESS;
/* Buffer is hot? */
if( !pArea->fRecordChanged )
{
uiError = SELF_GOHOT( ( AREAP ) pArea );
if( uiError != SUCCESS )
return uiError;
}
if( pField->uiType != HB_FT_ANY )
{
if( !hb_fptFileLockEx( pArea, TRUE ) )
return EDBF_LOCK;
uiError = hb_fptPutMemo( pArea, uiIndex, pItem, NULL );
#if defined( HB_MEMO_SAFELOCK )
if( uiError == SUCCESS )
{
/* Force writer record to eliminate race condition */
SELF_GOCOLD( ( AREAP ) pArea );
}
#endif
hb_fptFileUnLock( pArea );
}
else if( pField->uiLen == 3 )
{
if( ! HB_IS_DATE( pItem ) )
{
return EDBF_DATATYPE;
}
hb_sxDtoP( ( char * ) pFieldBuf, hb_itemGetDL( pItem ) );
}
else if( pField->uiLen == 4 )
{
HB_LONG lVal;
if( ! HB_IS_NUMBER( pItem ) )
return EDBF_DATATYPE;
lVal = hb_itemGetNInt( pItem );
if( HB_IS_DOUBLE( pItem ) ?
! HB_DBL_LIM_INT32( hb_itemGetND( pItem ) ) :
! HB_LIM_INT32( lVal ) )
{
return EDBF_DATAWIDTH;
}
HB_PUT_LE_UINT32( pFieldBuf, ( UINT32 ) lVal );
}
else if( pField->uiLen < 6 )
{
return EDBF_DATATYPE;
}
else
{
BYTE buffer[ 11 ], *pBlock = NULL, *pAlloc = NULL;
ULONG ulOldBlock = 0, ulOldSize = 0, ulNewSize = 0;
USHORT uiType = HB_GET_LE_UINT16( pFieldBuf + pField->uiLen - 2 );
if( ( uiType <= HB_VF_CHAR && uiType > pField->uiLen - 2 ) ||
( uiType == HB_VF_DNUM && pField->uiLen <= 12 ) ||
uiType == HB_VF_ARRAY || uiType == HB_VF_BLOB ||
uiType == HB_VF_BLOBCOMPRESS || uiType == HB_VF_BLOBENCRYPT )
{
ulOldBlock = HB_GET_LE_UINT32( pFieldBuf + pField->uiLen - 6 );
if( ulOldBlock )
{
if( uiType <= HB_VF_CHAR )
ulOldSize = uiType - ( pField->uiLen - 6 );
else if( uiType == HB_VF_DNUM )
ulOldSize = 11;
else if( uiType == HB_VF_ARRAY )
{
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulOldBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fptCountSMTDataLength( pArea, &ulOldSize ) != SUCCESS )
ulOldSize = 0;
}
}
}
if( HB_IS_DATE( pItem ) )
{
hb_sxDtoP( ( char * ) pFieldBuf, hb_itemGetDL( pItem ) );
uiType = HB_VF_DATE;
}
else if( HB_IS_LOGICAL( pItem ) )
{
pFieldBuf[ 0 ] = hb_itemGetL( pItem ) ? 1 : 0;
uiType = HB_VF_LOG;
}
else if( HB_IS_NIL( pItem ) )
{
uiType = 0;
}
else if( HB_IS_NUMBER( pItem ) )
{
HB_LONG lVal;
lVal = hb_itemGetNInt( pItem );
if( !HB_IS_DOUBLE( pItem ) && HB_LIM_INT32( lVal ) )
{
HB_PUT_LE_UINT32( pFieldBuf, ( UINT32 ) lVal );
uiType = HB_VF_INT;
}
else
{
double dVal = hb_itemGetND( pItem );
int iWidth, iDec;
hb_itemGetNLen( pItem, &iWidth, &iDec );
if( iDec )
iWidth += iDec + 1;
buffer[ 0 ] = SMT_IT_DOUBLE;
buffer[ 1 ] = ( BYTE ) iWidth;
buffer[ 2 ] = ( BYTE ) iDec;
HB_PUT_LE_DOUBLE( &buffer[ 3 ], dVal );
uiType = HB_VF_DNUM;
if( pField->uiLen > 12 )
memcpy( pFieldBuf, buffer + 1, 10 );
else
{
pBlock = buffer;
ulNewSize = 11;
}
}
}
else if( HB_IS_STRING( pItem ) )
{
ULONG ulLen = hb_itemGetCLen( pItem );
if( ulLen > HB_VF_CHAR )
ulLen = HB_VF_CHAR;
uiType = ( USHORT ) ulLen;
pAlloc = ( BYTE * ) hb_xgrab( uiType + 1 );
memcpy( pAlloc, hb_itemGetCPtr( pItem ), uiType );
#ifndef HB_CDP_SUPPORT_OFF
hb_cdpnTranslate( ( char * ) pAlloc, hb_vmCDP(), pArea->cdPage, uiType );
#endif
if( uiType <= pField->uiLen - 2 )
{
memcpy( pFieldBuf, pAlloc, uiType );
}
else
{
pBlock = pAlloc;
ulNewSize = uiType;
if( pField->uiLen > 6 )
{
memcpy( pFieldBuf, pBlock, pField->uiLen - 6 );
ulNewSize -= pField->uiLen - 6;
pBlock += pField->uiLen - 6;
}
}
}
else if( HB_IS_ARRAY( pItem ) )
{
ULONG ulArrayCount = 0;
ulNewSize = hb_fptCountSMTItemLength( pArea, pItem, &ulArrayCount );
pBlock = pAlloc = ( BYTE * ) hb_xgrab( ulNewSize );
hb_fptStoreSMTItem( pArea, pItem, &pBlock );
pBlock = pAlloc;
uiType = HB_VF_ARRAY;
}
else
{
return EDBF_DATATYPE;
}
HB_PUT_LE_UINT16( pFieldBuf + pField->uiLen - 2, uiType );
if( ulNewSize )
HB_PUT_LE_UINT32( pFieldBuf + pField->uiLen - 6, 0 );
if( ulOldBlock != 0 || ulNewSize != 0 )
{
if( !hb_fptFileLockEx( pArea, TRUE ) )
{
uiError = EDBF_LOCK;
}
else
{
uiError = hb_fptWriteMemo( pArea, ulOldBlock, ulOldSize,
pBlock, FS_ERROR,
FPTIT_DUMMY, ulNewSize, &ulOldBlock );
if( uiError == SUCCESS )
{
if( ulNewSize )
HB_PUT_LE_UINT32( pFieldBuf + pField->uiLen - 6, ulOldBlock );
#if defined( HB_MEMO_SAFELOCK )
/* Force writer record to eliminate race condition */
SELF_GOCOLD( ( AREAP ) pArea );
#endif
}
hb_fptFileUnLock( pArea );
}
}
if( pAlloc )
hb_xfree( pAlloc );
}
return uiError;
}
return SUPER_PUTVALUE( ( AREAP ) pArea, uiIndex, pItem );
}
/* FPT METHODS */
/*
* Open a data store in the WorkArea.
* ( DBENTRYP_VP ) hb_fptOpen : NULL
*/
/*
* Retrieve the size of the WorkArea structure.
* ( DBENTRYP_SP ) hb_fptStructSize
*/
static ERRCODE hb_fptStructSize( FPTAREAP pArea, USHORT * uiSize )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptStrucSize(%p, %p)", pArea, uiSize));
HB_SYMBOL_UNUSED( pArea );
* uiSize = sizeof( FPTAREA );
return SUCCESS;
}
/*
* Obtain the length of a field value.
* ( DBENTRYP_SVL ) hb_fptGetVarLen
*/
static ERRCODE hb_fptGetVarLen( FPTAREAP pArea, USHORT uiIndex, ULONG * pLength )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetVarLen(%p, %hu, %p)", pArea, uiIndex, pLength));
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR &&
( pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_MEMO ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_IMAGE ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_BLOB ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_OLE ) )
{
ERRCODE uiError;
BOOL fUnLock;
uiError = hb_fptLockForRead( pArea, uiIndex, &fUnLock );
if( uiError == SUCCESS )
*pLength = hb_fptGetMemoLen( pArea, uiIndex );
else
*pLength = 0;
if( fUnLock )
hb_fptFileUnLock( pArea );
return uiError;
}
return SUPER_GETVARLEN( ( AREAP ) pArea, uiIndex, pLength );
}
/*
* Obtain the current value of a field.
* ( DBENTRYP_SI ) hb_fptGetValue
*/
static ERRCODE hb_fptGetValue( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem )
{
ERRCODE uiError;
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetValue(%p, %hu, %p)", pArea, uiIndex, pItem));
if( !uiIndex || uiIndex > pArea->uiFieldCount )
return FAILURE;
uiError = hb_fptGetVarField( pArea, uiIndex, pItem, FS_ERROR );
if( uiError != SUCCESS )
{
if( uiError == FAILURE )
return FAILURE;
hb_memoErrorRT( pArea, 0, uiError, pArea->szMemoFileName, 0, 0 );
}
return SUCCESS;
}
/*
* Assign a value to a field.
* ( DBENTRYP_SI ) hb_fptPutValue
*/
static ERRCODE hb_fptPutValue( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem )
{
ERRCODE uiError;
HB_TRACE(HB_TR_DEBUG, ("hb_fptPutValue(%p, %hu, %p)", pArea, uiIndex, pItem));
if( !uiIndex || uiIndex > pArea->uiFieldCount )
return FAILURE;
uiError = hb_fptPutVarField( pArea, uiIndex, pItem );
if( uiError != SUCCESS )
{
if( uiError == FAILURE )
return FAILURE;
hb_memoErrorRT( pArea, 0, uiError, pArea->szMemoFileName, 0, EF_CANDEFAULT );
}
return SUCCESS;
}
/* ( DBENTRYP_V ) hb_fptCloseMemFile : NULL */
/*
* Create a memo file in the WorkArea.
* ( DBENTRYP_VP ) hb_fptCreateMemFile
*/
static ERRCODE hb_fptCreateMemFile( FPTAREAP pArea, LPDBOPENINFO pCreateInfo )
{
FPTHEADER fptHeader;
ULONG ulNextBlock, ulSize, ulLen;
HB_TRACE(HB_TR_DEBUG, ("hb_fptCreateMemFile(%p, %p)", pArea, pCreateInfo));
if( pCreateInfo )
{
BYTE szFileName[ _POSIX_PATH_MAX + 1 ];
PHB_FNAME pFileName;
PHB_ITEM pError = NULL, pItem = NULL;
BOOL bRetry;
if( !pArea->bMemoType )
{
pItem = hb_itemPutNI( pItem, 0 );
if( SELF_INFO( ( AREAP ) pArea, DBI_MEMOTYPE, pItem ) != SUCCESS )
{
hb_itemRelease( pItem );
return FAILURE;
}
pArea->bMemoType = hb_itemGetNI( pItem );
/*
if( !pArea->bMemoType )
{
pArea->bMemoType = DB_MEMO_FPT;
pArea->uiMemoVersion = DB_MEMOVER_FLEX;
}
*/
if( pArea->bMemoType != DB_MEMO_DBT &&
pArea->bMemoType != DB_MEMO_FPT &&
pArea->bMemoType != DB_MEMO_SMT )
{
hb_memoErrorRT( pArea, EG_CREATE, EDBF_MEMOTYPE,
( char * ) pCreateInfo->abName, 0, 0 );
hb_itemRelease( pItem );
return FAILURE;
}
}
if( !pArea->uiMemoVersion )
{
if( pArea->bMemoType == DB_MEMO_SMT )
pArea->uiMemoVersion = DB_MEMOVER_SIX;
else if( pArea->bMemoType == DB_MEMO_FPT )
{
pItem = hb_itemPutNI( pItem, 0 );
if( SELF_INFO( ( AREAP ) pArea, DBI_MEMOVERSION, pItem ) != SUCCESS )
{
hb_itemRelease( pItem );
return FAILURE;
}
pArea->uiMemoVersion = hb_itemGetNI( pItem );
}
else
pArea->uiMemoVersion = DB_MEMOVER_STD;
}
if( !pArea->uiMemoBlockSize )
{
pItem = hb_itemPutNI( pItem, 0 );
if( SELF_INFO( ( AREAP ) pArea, DBI_MEMOBLOCKSIZE, pItem ) != SUCCESS )
{
hb_itemRelease( pItem );
return FAILURE;
}
pArea->uiMemoBlockSize = hb_itemGetNI( pItem );
}
/* create file name */
pFileName = hb_fsFNameSplit( ( char * ) pCreateInfo->abName );
if( ! pFileName->szExtension )
{
pItem = hb_itemPutC( pItem, NULL );
SELF_INFO( ( AREAP ) pArea, DBI_MEMOEXT, pItem );
pFileName->szExtension = hb_itemGetCPtr( pItem );
hb_fsFNameMerge( ( char * ) szFileName, pFileName );
}
else
{
hb_strncpy( ( char * ) szFileName, ( char * ) pCreateInfo->abName, sizeof( szFileName ) - 1 );
}
hb_xfree( pFileName );
if( pItem )
{
hb_itemRelease( pItem );
}
/* Try create */
do
{
pArea->hMemoFile = hb_fsExtOpen( szFileName, NULL,
FO_READWRITE | FO_EXCLUSIVE | FXO_TRUNCATE |
FXO_DEFAULTS | FXO_SHARELOCK,
NULL, pError );
if( pArea->hMemoFile == FS_ERROR )
{
if( !pError )
{
pError = hb_errNew();
hb_errPutGenCode( pError, EG_CREATE );
hb_errPutSubCode( pError, EDBF_CREATE_MEMO );
hb_errPutDescription( pError, hb_langDGetErrorDesc( EG_CREATE ) );
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutFileName( pError, ( char * ) szFileName );
hb_errPutFlags( pError, EF_CANRETRY );
}
bRetry = ( SELF_ERROR( ( AREAP ) pArea, pError ) == E_RETRY );
}
else
bRetry = FALSE;
} while( bRetry );
if( pError )
hb_itemRelease( pError );
if( pArea->hMemoFile == FS_ERROR )
return FAILURE;
pArea->szMemoFileName = hb_strdup( ( char * ) szFileName );
}
else /* For zap file */
hb_fsSeek( pArea->hMemoFile, 0, FS_SET );
memset( &fptHeader, 0, sizeof( FPTHEADER ) );
ulSize = 512;
if( pArea->uiMemoVersion == DB_MEMOVER_SIX )
{
memcpy( fptHeader.signature1, "SIxMemo", 8 );
}
else
{
memcpy( fptHeader.signature1, "Harbour", 8 );
if( pArea->uiMemoVersion == DB_MEMOVER_FLEX ||
pArea->uiMemoVersion == DB_MEMOVER_CLIP )
{
memcpy( fptHeader.signature2, "FlexFile3\003", 11 );
ulSize = sizeof( FPTHEADER );
if( pArea->rddID == s_uiRddIdBLOB )
{
HB_PUT_LE_UINT16( fptHeader.flexSize, pArea->uiMemoBlockSize );
}
}
}
ulNextBlock = ( ulSize + pArea->uiMemoBlockSize - 1 ) / pArea->uiMemoBlockSize;
if( pArea->bMemoType == DB_MEMO_SMT || pArea->bMemoType == DB_MEMO_DBT )
{
HB_PUT_LE_UINT32( fptHeader.nextBlock, ulNextBlock );
HB_PUT_LE_UINT32( fptHeader.blockSize, ( UINT32 ) pArea->uiMemoBlockSize );
}
else
{
HB_PUT_BE_UINT32( fptHeader.nextBlock, ulNextBlock );
HB_PUT_BE_UINT32( fptHeader.blockSize, ( UINT32 ) pArea->uiMemoBlockSize );
}
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &fptHeader, ( USHORT) ulSize ) != ( USHORT ) ulSize )
return FAILURE;
ulLen = ulNextBlock * pArea->uiMemoBlockSize - ulSize;
memset( &fptHeader, 0, sizeof( FPTHEADER ) );
while( ulLen > 0 )
{
ulSize = HB_MIN( ulLen, sizeof( FPTHEADER ) );
if( hb_fsWrite( pArea->hMemoFile, ( BYTE * ) &fptHeader, ( USHORT ) ulSize ) != ( USHORT ) ulSize )
return FAILURE;
ulLen -= ulSize;
}
/* trunc file */
hb_fsWrite( pArea->hMemoFile, NULL, 0 );
pArea->fMemoFlush = TRUE;
return SUCCESS;
}
/*
* BLOB2FILE - retrieve memo contents into file
* ( DBENTRYP_SVPB ) hb_fptGetValueFile
*/
static ERRCODE hb_fptGetValueFile( FPTAREAP pArea, USHORT uiIndex, BYTE * szFile, USHORT uiMode )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptGetValueFile(%p, %hu, %s, %hu)", pArea, uiIndex, szFile, uiMode));
if( !uiIndex || uiIndex > pArea->uiFieldCount )
return FAILURE;
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR &&
( pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_MEMO ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_IMAGE ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_BLOB ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_OLE ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_ANY ) )
{
USHORT uiError;
HB_FHANDLE hFile;
hFile = hb_fsExtOpen( szFile, NULL, FO_WRITE | FO_EXCLUSIVE |
FXO_DEFAULTS | FXO_SHARELOCK |
( uiMode == FILEGET_APPEND ?
FXO_APPEND : FXO_TRUNCATE ),
NULL, NULL );
if( hFile == FS_ERROR )
{
uiError = uiMode != FILEGET_APPEND ? EDBF_CREATE : EDBF_OPEN_DBF;
}
else
{
hb_fsSeekLarge( hFile, 0, FS_END );
uiError = hb_fptGetVarField( pArea, uiIndex, NULL, hFile );
hb_fsClose( hFile );
}
/* Exit if any error */
if( uiError != SUCCESS )
{
if( uiError != FAILURE )
{
hb_memoErrorRT( pArea, 0, uiError,
uiError == EDBF_OPEN_DBF || uiError == EDBF_CREATE ||
uiError == EDBF_WRITE ? ( char * ) szFile :
pArea->szMemoFileName, 0, 0 );
}
return FAILURE;
}
return SUCCESS;
}
return SUPER_GETVALUEFILE( ( AREAP ) pArea, uiIndex, szFile, uiMode );
}
/*
* Open a memo file in the specified WorkArea.
* ( DBENTRYP_VP ) hb_fptOpenMemFile
*/
static ERRCODE hb_fptOpenMemFile( FPTAREAP pArea, LPDBOPENINFO pOpenInfo )
{
BYTE szFileName[ _POSIX_PATH_MAX + 1 ];
PHB_FNAME pFileName;
PHB_ITEM pError;
USHORT uiFlags;
BOOL bRetry;
HB_TRACE(HB_TR_DEBUG, ("hb_fptOpenMemFile(%p, %p)", pArea, pOpenInfo));
if( pArea->rddID == s_uiRddIdBLOB )
{
pArea->bMemoType = DB_MEMO_FPT;
pArea->uiMemoVersion = DB_MEMOVER_FLEX;
}
else if( pArea->bMemoType != DB_MEMO_DBT &&
pArea->bMemoType != DB_MEMO_FPT &&
pArea->bMemoType != DB_MEMO_SMT )
{
hb_memoErrorRT( pArea, EG_OPEN, EDBF_MEMOTYPE,
( char * ) pOpenInfo->abName, 0, 0 );
return FAILURE;
}
/* create file name */
pFileName = hb_fsFNameSplit( ( char * ) pOpenInfo->abName );
if( ! pFileName->szExtension )
{
PHB_ITEM pItem = hb_itemPutC( NULL, NULL );
SELF_INFO( ( AREAP ) pArea, DBI_MEMOEXT, pItem );
pFileName->szExtension = hb_itemGetCPtr( pItem );
hb_fsFNameMerge( ( char * ) szFileName, pFileName );
hb_itemRelease( pItem );
}
else
{
hb_strncpy( ( char * ) szFileName, ( char * ) pOpenInfo->abName, sizeof( szFileName ) - 1 );
}
hb_xfree( pFileName );
uiFlags = (pOpenInfo->fReadonly ? FO_READ : FO_READWRITE) |
(pOpenInfo->fShared ? FO_DENYNONE : FO_EXCLUSIVE);
pError = NULL;
/* Try open */
do
{
pArea->hMemoFile = hb_fsExtOpen( szFileName, NULL, uiFlags |
FXO_DEFAULTS | FXO_SHARELOCK,
NULL, pError );
if( pArea->hMemoFile == FS_ERROR )
{
if( !pError )
{
pError = hb_errNew();
hb_errPutGenCode( pError, EG_OPEN );
hb_errPutSubCode( pError, EDBF_OPEN_MEMO );
hb_errPutDescription( pError, hb_langDGetErrorDesc( EG_OPEN ) );
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutFileName( pError, ( char * ) szFileName );
hb_errPutFlags( pError, EF_CANRETRY | EF_CANDEFAULT );
}
bRetry = ( SELF_ERROR( ( AREAP ) pArea, pError ) == E_RETRY );
}
else
bRetry = FALSE;
} while( bRetry );
if( pError )
hb_itemRelease( pError );
if( pArea->hMemoFile == FS_ERROR )
return FAILURE;
pArea->szMemoFileName = hb_strdup( ( char * ) szFileName );
if( pArea->bMemoType == DB_MEMO_DBT )
{
pArea->uiMemoBlockSize = DBT_DEFBLOCKSIZE;
}
else
{
FPTHEADER fptHeader;
memset( &fptHeader, 0, sizeof( FPTHEADER ) );
if( hb_fptFileLockSh( pArea, TRUE ) )
{
hb_fsSeek( pArea->hMemoFile, 0, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptHeader, sizeof( FPTHEADER ) ) >= 512 )
{
pArea->uiMemoVersion = DB_MEMOVER_STD;
if( pArea->bMemoType == DB_MEMO_SMT )
pArea->uiMemoBlockSize = ( USHORT ) HB_GET_LE_UINT32( fptHeader.blockSize );
else
pArea->uiMemoBlockSize = ( USHORT ) HB_GET_BE_UINT32( fptHeader.blockSize );
/* Check for compatibility with SIX memo headers */
if( memcmp( fptHeader.signature1, "SIxMemo", 7 ) == 0 )
{
pArea->uiMemoVersion = DB_MEMOVER_SIX;
}
/* Check for compatibility with CLIP (www.itk.ru) memo headers */
else if( memcmp( fptHeader.signature1, "Made by CLIP", 12 ) == 0 )
{
pArea->uiMemoVersion = DB_MEMOVER_CLIP;
}
/* Check for compatibility with Clipper 5.3/FlexFile3 malformed memo headers */
if( pArea->uiMemoVersion != DB_MEMOVER_SIX &&
memcmp( fptHeader.signature2, "FlexFile3\003", 10) == 0 )
{
USHORT usSize = HB_GET_LE_UINT16( fptHeader.flexSize );
pArea->uiMemoVersion = DB_MEMOVER_FLEX;
if( usSize != 0 && ( pArea->uiMemoBlockSize == 0 ||
pArea->rddID == s_uiRddIdBLOB ) )
{
pArea->uiMemoBlockSize = usSize;
}
}
}
hb_fptFileUnLock( pArea );
}
}
if( pArea->uiMemoBlockSize == 0 )
{
hb_memoErrorRT( pArea, EG_CORRUPTION, EDBF_CORRUPT,
( char * ) pArea->szMemoFileName, 0, 0 );
return FAILURE;
}
return SUCCESS;
}
/*
* FILE2BLOB - store file contents in MEMO
* ( DBENTRYP_SVPB ) hb_fptPutValueFile
*/
static ERRCODE hb_fptPutValueFile( FPTAREAP pArea, USHORT uiIndex, BYTE * szFile, USHORT uiMode )
{
LPFIELD pField;
HB_TRACE(HB_TR_DEBUG, ("hb_fptPutValueFile(%p, %hu, %s, %hu)", pArea, uiIndex, szFile, uiMode));
if( !uiIndex || uiIndex > pArea->uiFieldCount )
return FAILURE;
pField = pArea->lpFields + uiIndex - 1;
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR &&
( pField->uiType == HB_FT_MEMO ||
pField->uiType == HB_FT_IMAGE ||
pField->uiType == HB_FT_BLOB ||
pField->uiType == HB_FT_OLE ||
( pField->uiType == HB_FT_ANY && pField->uiLen >= 6 ) ) )
{
USHORT uiError;
BOOL bDeleted;
HB_FHANDLE hFile;
/* update any pending relations and reread record if necessary */
uiError = SELF_DELETED( ( AREAP ) pArea, &bDeleted );
if( uiError != SUCCESS )
return uiError;
if( !pArea->fPositioned )
return FAILURE;
/* Buffer is hot? */
if( !pArea->fRecordChanged && SELF_GOHOT( ( AREAP ) pArea ) == FAILURE )
return FAILURE;
hFile = hb_fsExtOpen( szFile, NULL, FO_READ | FO_DENYNONE |
FXO_DEFAULTS | FXO_SHARELOCK, NULL, NULL );
if( hFile == FS_ERROR )
{
uiError = EDBF_OPEN_DBF;
}
else if( pField->uiType == HB_FT_ANY )
{
PHB_ITEM pItem;
BYTE * pAlloc;
ULONG ulSize;
HB_FOFFSET size = hb_fsSeekLarge( hFile, 0, FS_END );
hb_fsSeek( hFile, 0, FS_SET );
ulSize = ( ULONG ) HB_MIN( size, HB_VF_CHAR );
pAlloc = ( BYTE * ) hb_xgrab( ulSize + 1 );
if( hb_fsRead( hFile, pAlloc, ( USHORT ) ulSize ) != ( USHORT ) ulSize )
{
uiError = EDBF_READ;
hb_xfree( pAlloc );
}
else
{
pAlloc[ ulSize ] = '\0';
pItem = hb_itemPutCLPtr( NULL, ( char * ) pAlloc, ulSize );
uiError = hb_fptPutVarField( pArea, uiIndex, pItem );
hb_itemRelease( pItem );
}
}
else if( !hb_fptFileLockEx( pArea, TRUE ) )
{
hb_fsClose( hFile );
uiError = EDBF_LOCK;
}
else
{
ULONG ulSize, ulBlock, ulType, ulOldSize, ulOldType;
HB_FOFFSET size = hb_fsSeekLarge( hFile, 0, FS_END );
hb_fsSeek( hFile, 0, FS_SET );
if( ( HB_FOFFSET ) ( size & 0xFFFFFFFFUL ) == size )
{
ulSize = HB_MIN( ( ULONG ) size, 0xFFFFFFFFUL - sizeof( FPTBLOCK ) );
}
else
{
ulSize = ( ULONG ) HB_MIN( size, ( HB_FOFFSET ) ( 0xFFFFFFFFUL - sizeof( FPTBLOCK ) ) );
}
if( pArea->bMemoType == DB_MEMO_SMT )
ulType = SMT_IT_CHAR;
else
ulType = FPTIT_BINARY;
uiError = hb_dbfGetMemoData( (DBFAREAP) pArea, uiIndex - 1,
&ulBlock, &ulOldSize, &ulOldType );
if( uiError == SUCCESS )
uiError = hb_fptWriteMemo( pArea, ulBlock, ulOldSize, NULL, hFile,
ulType, ulSize, &ulBlock );
if( uiError == SUCCESS )
uiError = hb_dbfSetMemoData( (DBFAREAP) pArea, uiIndex - 1, ulBlock, ulSize, ulType );
#if defined( HB_MEMO_SAFELOCK )
if( uiError == SUCCESS )
{
/* Force writer record to eliminate race condition */
SELF_GOCOLD( ( AREAP ) pArea );
}
#endif
hb_fptFileUnLock( pArea );
hb_fsClose( hFile );
}
/* Exit if any error */
if( uiError != SUCCESS )
{
hb_memoErrorRT( pArea, 0, uiError,
uiError == EDBF_OPEN_DBF || uiError == EDBF_READ ?
( char * ) szFile : pArea->szMemoFileName, 0, 0 );
return FAILURE;
}
return SUCCESS;
}
return SUPER_PUTVALUEFILE( ( AREAP ) pArea, uiIndex, szFile, uiMode );
}
static ERRCODE hb_fptDoPackRec( FPTAREAP pArea )
{
ERRCODE errCode = SUCCESS;
ULONG ulBlock, ulSize, ulSkip, ulType;
USHORT uiField;
HB_FOFFSET pos;
HB_TRACE(HB_TR_DEBUG, ("hb_fptDoPackRec(%p)", pArea));
/* TODO: implement memo pack operation */
for( uiField = 0; uiField < pArea->uiFieldCount; ++uiField )
{
LPFIELD pField = pArea->lpFields + uiField;
if( pField->uiType == HB_FT_MEMO ||
pField->uiType == HB_FT_IMAGE ||
pField->uiType == HB_FT_BLOB ||
pField->uiType == HB_FT_OLE )
{
errCode = hb_dbfGetMemoData( ( DBFAREAP ) pArea, uiField,
&ulBlock, &ulSize, &ulType );
if( errCode == SUCCESS && ulBlock != 0 )
{
/* Buffer is hot? */
if( !pArea->fRecordChanged )
errCode = SELF_GOHOT( ( AREAP ) pArea );
if( ulSize == 0 && errCode == SUCCESS )
{
if( pArea->bMemoType == DB_MEMO_DBT )
{
ulSize = hb_fptGetMemoLen( pArea, uiField + 1 );
if( ulSize )
++ulSize;
}
else if( pArea->bMemoType == DB_MEMO_FPT )
{
FPTBLOCK fptBlock;
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsRead( pArea->hMemoFile, ( BYTE * ) &fptBlock,
sizeof( FPTBLOCK ) ) == sizeof( FPTBLOCK ) )
ulSize = HB_GET_BE_UINT32( fptBlock.size ) +
sizeof( FPTBLOCK );
}
}
if( ulSize && errCode == SUCCESS )
{
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
pos = hb_fsSeekLarge( pArea->hMemoTmpFile, 0, FS_RELATIVE );
ulBlock = ( ULONG ) ( ( pos + pArea->uiNewBlockSize - 1 ) /
pArea->uiNewBlockSize );
ulSkip = ( ULONG ) ( ( ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiNewBlockSize ) -
pos );
if( ulSkip )
hb_fsSeek( pArea->hMemoTmpFile, ulSkip, FS_RELATIVE );
errCode = hb_fptCopyToFile( pArea->hMemoFile,
pArea->hMemoTmpFile, ulSize );
}
else
ulBlock = ulType = 0;
if( errCode == SUCCESS )
errCode = hb_dbfSetMemoData( ( DBFAREAP ) pArea, uiField,
ulBlock, ulSize, ulType );
}
}
else if( pField->uiType == HB_FT_ANY && pField->uiLen >= 6 )
{
BYTE * pFieldBuf = pArea->pRecord + pArea->pFieldOffset[ uiField ];
BYTE buffer[4];
ulBlock = HB_GET_LE_UINT32( pFieldBuf + pField->uiLen - 6 );
ulType = HB_GET_LE_UINT16( pFieldBuf + pField->uiLen - 2 );
ulSize = 0;
switch( ulType )
{
case HB_VF_BLOB:
case HB_VF_BLOBCOMPRESS:
case HB_VF_BLOBENCRYPT:
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
if( hb_fsReadLarge( pArea->hMemoFile, buffer, 4 ) != 4 )
errCode = EDBF_READ;
else
ulSize = HB_GET_LE_UINT32( buffer ) + 4;
break;
case HB_VF_ARRAY:
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
errCode = hb_fptCountSMTDataLength( pArea, &ulSize );
break;
case HB_VF_DNUM:
if( pField->uiLen <= 12 )
ulSize = 11;
break;
default:
if( ulType <= HB_VF_CHAR && ( pField->uiLen - 2 ) < ( int ) ulType )
ulSize = ulType - ( pField->uiLen - 6 );
break;
}
if( errCode == SUCCESS && ulSize )
{
/* Buffer is hot? */
if( !pArea->fRecordChanged )
errCode = SELF_GOHOT( ( AREAP ) pArea );
if( errCode == SUCCESS )
{
hb_fsSeekLarge( pArea->hMemoFile, ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiMemoBlockSize, FS_SET );
pos = hb_fsSeekLarge( pArea->hMemoTmpFile, 0, FS_RELATIVE );
ulBlock = ( ULONG ) ( ( pos + pArea->uiNewBlockSize - 1 ) /
pArea->uiNewBlockSize );
ulSkip = ( ULONG ) ( ( ( HB_FOFFSET ) ulBlock *
( HB_FOFFSET ) pArea->uiNewBlockSize ) -
pos );
if( ulSkip )
hb_fsSeek( pArea->hMemoTmpFile, ulSkip, FS_RELATIVE );
errCode = hb_fptCopyToFile( pArea->hMemoFile,
pArea->hMemoTmpFile, ulSize );
if( errCode == SUCCESS )
HB_PUT_LE_UINT32( pFieldBuf + pField->uiLen - 6, ulBlock );
}
}
}
}
return errCode;
}
static ERRCODE hb_fptDoPack( FPTAREAP pArea, USHORT uiBlockSize,
PHB_ITEM pEvalBlock, LONG lEvalStep )
{
ERRCODE errCode = SUCCESS;
HB_TRACE(HB_TR_DEBUG, ("hb_fptDoPack(%p,%hu,%p,%ld)", pArea, uiBlockSize, pEvalBlock, lEvalStep));
if( pArea->fReadonly )
errCode = EDBF_READONLY;
else if( pArea->fShared )
errCode = EDBF_SHARED;
else if( SELF_GOCOLD( ( AREAP ) pArea ) != SUCCESS )
return FAILURE;
else if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR &&
pArea->hDataFile != FS_ERROR )
{
BYTE szFile[ _POSIX_PATH_MAX + 1 ];
ULONG ulRecNo, ulRecords;
LONG lStep = lEvalStep;
if( pEvalBlock && !HB_IS_BLOCK( pEvalBlock ) )
pEvalBlock = NULL;
errCode = SELF_RECCOUNT( ( AREAP ) pArea, &ulRecords );
if( errCode == SUCCESS && ulRecords )
{
pArea->uiNewBlockSize = uiBlockSize && pArea->bMemoType != DB_MEMO_DBT
? uiBlockSize : pArea->uiMemoBlockSize;
pArea->hMemoTmpFile = hb_fsCreateTemp( NULL, NULL, FC_NORMAL, szFile );
if( pArea->hMemoTmpFile != FS_ERROR )
{
USHORT uiBlockSize = pArea->uiMemoBlockSize;
HB_FHANDLE hFile = pArea->hMemoFile;
pArea->uiMemoBlockSize = pArea->uiNewBlockSize;
pArea->hMemoFile = pArea->hMemoTmpFile;
errCode = SELF_CREATEMEMFILE( ( AREAP ) pArea, NULL );
pArea->hMemoFile = hFile;
pArea->uiMemoBlockSize = uiBlockSize;
if( errCode == SUCCESS )
{
if( pEvalBlock )
{
SELF_GOTO( ( AREAP ) pArea, 0 );
pArea->fEof = FALSE;
hb_vmEvalBlock( pEvalBlock );
}
for( ulRecNo = 1; ulRecNo <= ulRecords; ++ulRecNo )
{
BOOL fDeleted;
errCode = SELF_GOTO( ( AREAP ) pArea, ulRecNo );
if( errCode != SUCCESS )
break;
if( pEvalBlock )
{
if( --lStep <= 0 )
{
hb_vmEvalBlock( pEvalBlock );
lStep = lEvalStep;
}
}
/* read record into bugger */
errCode = SELF_DELETED( ( AREAP ) pArea, &fDeleted );
if( errCode != SUCCESS )
break;
errCode = hb_fptDoPackRec( pArea );
if( errCode != SUCCESS )
break;
errCode = SELF_GOCOLD( ( AREAP ) pArea );
if( errCode != SUCCESS )
break;
}
if( errCode == SUCCESS && pEvalBlock )
{
SELF_GOTO( ( AREAP ) pArea, 0 );
pArea->fBof = FALSE;
hb_vmEvalBlock( pEvalBlock );
}
}
if( errCode == SUCCESS )
{
HB_FOFFSET size = hb_fsSeekLarge( pArea->hMemoTmpFile, 0, FS_END );
ULONG ulNextBlock;
BYTE buffer[4];
ulNextBlock = ( ULONG ) ( ( size + pArea->uiNewBlockSize - 1 ) /
pArea->uiNewBlockSize );
if( pArea->bMemoType == DB_MEMO_SMT ||
pArea->bMemoType == DB_MEMO_DBT )
HB_PUT_LE_UINT32( buffer, ulNextBlock );
else
HB_PUT_BE_UINT32( buffer, ulNextBlock );
hb_fsSeek( pArea->hMemoTmpFile, 0, FS_SET );
hb_fsWrite( pArea->hMemoTmpFile, buffer, sizeof( buffer ) );
hb_fsSeek( pArea->hMemoTmpFile, 0, FS_SET );
hb_fsSeek( pArea->hMemoFile, 0, FS_SET );
errCode = hb_fptCopyToFile( pArea->hMemoTmpFile,
pArea->hMemoFile, size );
/* trunc file */
hb_fsWrite( pArea->hMemoFile, NULL, 0 );
pArea->uiMemoBlockSize = pArea->uiNewBlockSize;
if( errCode != SUCCESS )
{
hb_memoErrorRT( pArea, 0, errCode, errCode == EDBF_READ ?
( char * ) szFile : pArea->szMemoFileName, 0, 0 );
errCode = FAILURE;
}
}
hb_fsClose( pArea->hMemoTmpFile );
hb_fsDelete( ( BYTE * ) szFile );
pArea->hMemoTmpFile = FS_ERROR;
}
}
}
if( errCode != SUCCESS && errCode != FAILURE )
{
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
errCode = FAILURE;
}
return errCode;
}
/*
* Pack helper function called for each packed record
* ( DBENTRYP_LSP ) hb_fptPackRec,
*/
static ERRCODE hb_fptPackRec( FPTAREAP pArea, ULONG ulRecNo, BOOL *pfWritten )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptPackRec(%p, %lu, %p)", pArea, ulRecNo, pfWritten));
if( pArea->fPackMemo )
{
ERRCODE errCode = SUPER_PACKREC( ( AREAP ) pArea, ulRecNo, pfWritten );
if( errCode == SUCCESS && *pfWritten )
{
errCode = hb_fptDoPackRec( pArea );
if( errCode != SUCCESS && errCode != FAILURE )
{
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
errCode = FAILURE;
}
}
return errCode;
}
return SUPER_PACKREC( ( AREAP ) pArea, ulRecNo, pfWritten );
}
/*
* Remove records marked for deletion from a database.
* ( DBENTRYP_V ) hb_fptPack,
*/
static ERRCODE hb_fptPack( FPTAREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptPack(%p)", pArea));
if( !pArea->fReadonly && !pArea->fShared &&
pArea->fHasMemo && pArea->hMemoFile != FS_ERROR &&
pArea->hDataFile != FS_ERROR )
{
BYTE szFile[ _POSIX_PATH_MAX + 1 ];
if( SELF_GOCOLD( ( AREAP ) pArea ) != SUCCESS )
return FAILURE;
pArea->hMemoTmpFile = hb_fsCreateTemp( NULL, NULL, FC_NORMAL, szFile );
if( pArea->hMemoTmpFile != FS_ERROR )
{
ERRCODE errCode;
HB_FHANDLE hFile = pArea->hMemoFile;
pArea->uiNewBlockSize = pArea->uiMemoBlockSize;
pArea->hMemoFile = pArea->hMemoTmpFile;
errCode = SELF_CREATEMEMFILE( ( AREAP ) pArea, NULL );
pArea->hMemoFile = hFile;
if( errCode == SUCCESS )
{
pArea->fPackMemo = TRUE;
errCode = SUPER_PACK( ( AREAP ) pArea );
pArea->fPackMemo = FALSE;
if( errCode == SUCCESS )
{
HB_FOFFSET size = hb_fsSeekLarge( pArea->hMemoTmpFile, 0, FS_END );
ULONG ulNextBlock;
BYTE buffer[4];
ulNextBlock = ( ULONG ) ( ( size + pArea->uiNewBlockSize - 1 ) /
pArea->uiNewBlockSize );
if( pArea->bMemoType == DB_MEMO_SMT ||
pArea->bMemoType == DB_MEMO_DBT )
HB_PUT_LE_UINT32( buffer, ulNextBlock );
else
HB_PUT_BE_UINT32( buffer, ulNextBlock );
hb_fsSeek( pArea->hMemoTmpFile, 0, FS_SET );
hb_fsWrite( pArea->hMemoTmpFile, buffer, sizeof( buffer ) );
hb_fsSeek( pArea->hMemoTmpFile, 0, FS_SET );
hb_fsSeek( pArea->hMemoFile, 0, FS_SET );
errCode = hb_fptCopyToFile( pArea->hMemoTmpFile,
pArea->hMemoFile, size );
/* trunc file */
hb_fsWrite( pArea->hMemoFile, NULL, 0 );
pArea->uiMemoBlockSize = pArea->uiNewBlockSize;
if( errCode != SUCCESS )
{
hb_memoErrorRT( pArea, 0, errCode, errCode == EDBF_READ ?
( char * ) szFile : pArea->szMemoFileName, 0, 0 );
errCode = FAILURE;
}
}
}
hb_fsClose( pArea->hMemoTmpFile );
hb_fsDelete( ( BYTE * ) szFile );
pArea->hMemoTmpFile = FS_ERROR;
return errCode;
}
}
return SUPER_PACK( ( AREAP ) pArea );
}
/*
* Retrieve information about the current driver.
* ( DBENTRYP_SI ) hb_fptInfo
*/
static ERRCODE hb_fptInfo( FPTAREAP pArea, USHORT uiIndex, PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptInfo(%p, %hu, %p)", pArea, uiIndex, pItem));
switch( uiIndex )
{
case DBI_MEMOEXT:
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR )
{
PHB_FNAME pFileName;
pFileName = hb_fsFNameSplit( ( char * ) pArea->szMemoFileName );
hb_itemPutC( pItem, pFileName->szExtension );
hb_xfree( pFileName );
}
else
{
LPDBFDATA pData = ( LPDBFDATA ) SELF_RDDNODE( pArea )->lpvCargo;
char * szMFileExt;
if( pData->szMemoExt[ 0 ] )
hb_itemPutC( pItem, pData->szMemoExt );
else if( pArea->bMemoType == DB_MEMO_FPT &&
( szMFileExt = hb_setGetMFileExt() ) != NULL &&
*szMFileExt )
hb_itemPutC( pItem, szMFileExt );
else
{
char * szExt = hb_memoDefaultFileExt( pArea->bMemoType, pArea->rddID );
if( !szExt )
szExt = hb_memoDefaultFileExt( pData->bMemoType, pArea->rddID );
hb_itemPutC( pItem, szExt );
}
}
break;
case DBI_MEMOBLOCKSIZE:
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR )
hb_itemPutNI( pItem, pArea->uiMemoBlockSize );
else if( pArea->bMemoType && pArea->uiMemoBlockSize )
hb_itemPutNI( pItem, pArea->uiMemoBlockSize );
else if( pArea->bMemoType == DB_MEMO_DBT )
hb_itemPutNI( pItem, DBT_DEFBLOCKSIZE );
else
{
hb_itemClear( pItem );
return SELF_RDDINFO( SELF_RDDNODE( pArea ), RDDI_MEMOBLOCKSIZE, 0, pItem );
}
break;
case DBI_MEMOTYPE:
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR )
hb_itemPutNI( pItem, pArea->bMemoType );
else if( pArea->bMemoType )
hb_itemPutNI( pItem, pArea->bMemoType );
else
{
hb_itemClear( pItem );
return SELF_RDDINFO( SELF_RDDNODE( pArea ), RDDI_MEMOTYPE, 0, pItem );
}
break;
case DBI_MEMOVERSION:
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR )
hb_itemPutNI( pItem, pArea->uiMemoVersion );
else if( pArea->bMemoType != DB_MEMO_NONE &&
pArea->uiMemoVersion != 0 )
hb_itemPutNI( pItem, pArea->uiMemoVersion );
else
{
hb_itemClear( pItem );
return SELF_RDDINFO( SELF_RDDNODE( pArea ), RDDI_MEMOVERSION, 0, pItem );
}
break;
case DBI_MEMOPACK:
return hb_fptDoPack( pArea, hb_arrayGetNI( pItem, 1 ),
hb_arrayGetItemPtr( pItem, 2 ),
hb_arrayGetNL( pItem, 3 ) );
/* case DBI_RDD_VERSION */
case DBI_BLOB_DIRECT_EXPORT: /* BLOBDirectExport() { <nPointer>, <cTargetFile>, <kMOde> } */
{
ERRCODE errCode = FAILURE;
if( HB_IS_ARRAY( pItem ) )
{
ULONG ulBlock = hb_arrayGetNL( pItem, 1 );
BYTE * szFile = ( BYTE * ) hb_arrayGetCPtr( pItem, 2 );
if( ulBlock && szFile && *szFile )
errCode = hb_fptGetVarFile( pArea, ulBlock, szFile,
hb_arrayGetNI( pItem, 3 ) );
}
hb_itemPutL( pItem, errCode == SUCCESS );
break;
}
case DBI_BLOB_DIRECT_GET: /* BLOBDirectGet() { <nPointer>, <nStart>, <nCount> } */
{
/* pItem := { <nPointer>, <nStart>, <nCount> } */
ULONG ulBlock, ulStart, ulCount;
USHORT errCode;
if( HB_IS_ARRAY( pItem ) )
{
ulBlock = hb_arrayGetNL( pItem, 1 );
ulStart = hb_arrayGetNL( pItem, 2 );
if( ulStart )
--ulStart;
ulCount = hb_arrayGetNL( pItem, 3 );
}
else
{
ulBlock = ulStart = ulCount = 0;
}
errCode = hb_fptGetMemo( pArea, 0, pItem, FS_ERROR, ulBlock, ulStart, ulCount );
if( errCode != SUCCESS )
{
if( errCode != FAILURE )
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
return FAILURE;
}
break;
}
case DBI_BLOB_DIRECT_IMPORT: /* BLOBDirectImport() { <nOldPointer>, <cSourceFile> } */
if( HB_IS_ARRAY( pItem ) )
hb_itemPutNInt( pItem, hb_fptPutVarFile( pArea,
hb_arrayGetNL( pItem, 1 ),
( BYTE * ) hb_arrayGetCPtr( pItem, 2 ) ) );
else
hb_itemPutNI( pItem, 0 );
break;
case DBI_BLOB_DIRECT_PUT: /* BLOBDirectPut() { <nOldPointer>, <xBlob> } */
{
/* pItem := { <nOldPointer>, <xBlob> } */
USHORT errCode = EDBF_UNSUPPORTED;
ULONG ulBlock = 0;
if( HB_IS_ARRAY( pItem ) )
{
PHB_ITEM pValue = hb_arrayGetItemPtr( pItem, 2 );
ulBlock = hb_arrayGetNL( pItem, 1 );
if( pValue )
{
if( hb_fptFileLockEx( pArea, TRUE ) )
{
errCode = hb_fptPutMemo( pArea, 0, pValue, &ulBlock );
hb_fptFileUnLock( pArea );
}
else
errCode = EDBF_LOCK;
}
}
hb_itemPutNInt( pItem, ulBlock );
if( errCode != SUCCESS )
{
if( errCode != FAILURE )
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
return FAILURE;
}
break;
}
case DBI_BLOB_ROOT_GET: /* BLOBRootGet() */
{
ULONG ulBlock;
USHORT errCode;
errCode = hb_fptGetRootBlock( pArea, &ulBlock );
if( errCode == SUCCESS )
{
errCode = hb_fptGetMemo( pArea, 0, pItem, FS_ERROR, ulBlock, 0, 0 );
}
if( errCode != SUCCESS )
{
if( errCode != FAILURE )
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
hb_itemClear( pItem );
return FAILURE;
}
break;
}
case DBI_BLOB_ROOT_PUT: /* BLOBRootPut( <xBlob> ) */
{
ULONG ulBlock;
USHORT errCode;
errCode = hb_fptGetRootBlock( pArea, &ulBlock );
if( errCode == SUCCESS )
{
if( hb_fptFileLockEx( pArea, TRUE ) )
{
errCode = hb_fptPutMemo( pArea, 0, pItem, &ulBlock );
hb_fptFileUnLock( pArea );
if( errCode == SUCCESS )
errCode = hb_fptPutRootBlock( pArea, ulBlock );
}
else
errCode = EDBF_LOCK;
}
if( errCode != SUCCESS )
{
if( errCode != FAILURE )
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
hb_itemPutL( pItem, FALSE );
return FAILURE;
}
hb_itemPutL( pItem, TRUE );
break;
}
case DBI_BLOB_ROOT_LOCK: /* BLOBRootLock() */
hb_itemPutL( pItem, hb_fptRootBlockLock( pArea ) );
break;
case DBI_BLOB_ROOT_UNLOCK: /* BLOBRootUnlock() */
hb_itemPutL( pItem, hb_fptRootBlockUnLock( pArea ) );
break;
case DBI_BLOB_DIRECT_LEN:
case DBI_BLOB_DIRECT_TYPE:
case DBI_BLOB_INTEGRITY:
case DBI_BLOB_OFFSET:
case DBI_BLOB_RECOVER:
/* TODO: implement it */
break;
default:
return SUPER_INFO( ( AREAP ) pArea, uiIndex, pItem );
}
return SUCCESS;
}
/*
* Retrieve information about a field.
* ( DBENTRYP_SSI ) hb_fptFieldInfo
*/
static ERRCODE hb_fptFieldInfo( FPTAREAP pArea, USHORT uiIndex, USHORT uiType, PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fptFieldInfo(%p, %hu, %hu, %p)", pArea, uiIndex, uiType, pItem));
if( !uiIndex || uiIndex > pArea->uiFieldCount )
return FAILURE;
if( pArea->fHasMemo && pArea->hMemoFile != FS_ERROR &&
( pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_MEMO ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_IMAGE ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_BLOB ||
pArea->lpFields[ uiIndex - 1 ].uiType == HB_FT_OLE ) )
{
ULONG ulBlock, ulSize, ulType;
BOOL bDeleted;
SELF_DELETED( ( AREAP ) pArea, &bDeleted );
switch( uiType )
{
case DBS_BLOB_GET: /* BLOBGet() { <nStart>, <nCount> } */
{
/* pItem := { <nStart>, <nCount> } */
ULONG ulStart, ulCount;
USHORT errCode;
if( HB_IS_ARRAY( pItem ) )
{
ulStart = hb_arrayGetNL( pItem, 1 );
if( ulStart )
--ulStart;
ulCount = hb_arrayGetNL( pItem, 2 );
}
else
{
ulStart = ulCount = 0;
}
errCode = hb_fptGetMemo( pArea, uiIndex, pItem, FS_ERROR, 0, ulStart, ulCount );
if( errCode != SUCCESS )
{
if( errCode != FAILURE )
hb_memoErrorRT( pArea, 0, errCode, pArea->szMemoFileName, 0, 0 );
return FAILURE;
}
return SUCCESS;
}
case DBS_BLOB_LEN:
hb_itemPutNL( pItem, hb_fptGetMemoLen( pArea, uiIndex ) );
return SUCCESS;
case DBS_BLOB_OFFSET:
/* Clipper 5.3 does not support it :-( [druzus] */
hb_dbfGetMemoData( (DBFAREAP) pArea, uiIndex - 1,
&ulBlock, &ulSize, &ulType );
hb_itemPutNInt( pItem, ( HB_FOFFSET ) ulBlock * pArea->uiMemoBlockSize +
( pArea->bMemoType == DB_MEMO_FPT ? sizeof( FPTBLOCK ) : 0 ) );
return SUCCESS;
case DBS_BLOB_POINTER:
/*
* Clipper 5.3 it returns the same value as DBS_BLOB_OFFSET
* in Harbour - it's a Clipper bug [druzus]
*/
hb_dbfGetMemoData( (DBFAREAP) pArea, uiIndex - 1,
&ulBlock, &ulSize, &ulType );
hb_itemPutNL( pItem, ulBlock );
return SUCCESS;
case DBS_BLOB_TYPE:
hb_itemPutC( pItem, hb_fptGetMemoType( pArea, uiIndex ) );
return SUCCESS;
}
}
return SUPER_FIELDINFO( ( AREAP ) pArea, uiIndex, uiType, pItem );
}
/*
* Retrieve (set) information about RDD
* ( DBENTRYP_RSLV ) hb_fptRddInfo
*/
static ERRCODE hb_fptRddInfo( LPRDDNODE pRDD, USHORT uiIndex, ULONG ulConnect, PHB_ITEM pItem )
{
LPDBFDATA pData;
HB_TRACE(HB_TR_DEBUG, ("hb_fptRddInfo(%p, %hu, %lu, %p)", pRDD, uiIndex, ulConnect, pItem));
pData = ( LPDBFDATA ) pRDD->lpvCargo;
switch( uiIndex )
{
case RDDI_MEMOEXT:
{
char * szNew = hb_itemGetCPtr( pItem ), *szMFileExt;
if( szNew && szNew[0] == '.' && szNew[1] )
szNew = hb_strdup( szNew );
else
szNew = NULL;
if( pData->szMemoExt[ 0 ] )
hb_itemPutC( pItem, pData->szMemoExt );
else if( pData->bMemoType == DB_MEMO_FPT && pRDD->rddID != s_uiRddIdBLOB &&
( szMFileExt = hb_setGetMFileExt() ) != NULL &&
*szMFileExt )
hb_itemPutC( pItem, szMFileExt );
else
hb_itemPutC( pItem, hb_memoDefaultFileExt( pData->bMemoType, pRDD->rddID ) );
if( szNew )
{
hb_strncpy( pData->szMemoExt, szNew, sizeof( pData->szMemoExt ) - 1 );
hb_xfree( szNew );
}
break;
}
case RDDI_MEMOBLOCKSIZE:
{
int iSize = hb_itemGetNI( pItem ), iOldSize;
if( pData->uiMemoBlockSize )
hb_itemPutNI( pItem, pData->uiMemoBlockSize );
else if( ( iOldSize = hb_setGetMBlockSize() ) > 0 && iOldSize <= 0xFFFF )
hb_itemPutNI( pItem, iOldSize );
else if( pData->bMemoType == DB_MEMO_DBT )
hb_itemPutNI( pItem, DBT_DEFBLOCKSIZE );
else if( pData->bMemoType == DB_MEMO_SMT )
hb_itemPutNI( pItem, SMT_DEFBLOCKSIZE );
else
hb_itemPutNI( pItem, FPT_DEFBLOCKSIZE );
if( iSize > 0 && iSize <= 0xFFFF )
pData->uiMemoBlockSize = iSize;
break;
}
case RDDI_MEMOTYPE:
{
int iType = hb_itemGetNI( pItem );
hb_itemPutNI( pItem, pData->bMemoType ? pData->bMemoType : DB_MEMO_FPT );
if( pRDD->rddID != s_uiRddIdBLOB )
{
switch( iType )
{
case DB_MEMO_DBT:
case DB_MEMO_FPT:
case DB_MEMO_SMT:
pData->bMemoType = ( BYTE ) iType;
}
}
break;
}
case RDDI_MEMOVERSION:
{
int iType = hb_itemGetNI( pItem );
hb_itemPutNI( pItem, pData->bMemoExtType ? pData->bMemoExtType : DB_MEMOVER_FLEX );
switch( iType )
{
case DB_MEMOVER_STD:
case DB_MEMOVER_SIX:
case DB_MEMOVER_FLEX:
case DB_MEMOVER_CLIP:
pData->bMemoExtType = ( BYTE ) iType;
}
break;
}
case RDDI_MEMOGCTYPE:
hb_itemPutNI( pItem, 0 );
break;
case RDDI_MEMOREADLOCK:
#if defined( HB_MEMO_SAFELOCK )
hb_itemPutL( pItem, pRDD->rddID != s_uiRddIdBLOB );
#else
hb_itemPutL( pItem, FALSE );
#endif
break;
case RDDI_MEMOREUSE:
hb_itemPutL( pItem, TRUE );
break;
case RDDI_BLOB_SUPPORT:
hb_itemPutL( pItem, pRDD->rddID == s_uiRddIdBLOB );
break;
default:
return SUPER_RDDINFO( pRDD, uiIndex, ulConnect, pItem );
}
return SUCCESS;
}
HB_FUNC( DBFDBT ) {;}
HB_FUNC( DBFSMT ) {;}
HB_FUNC( DBFFPT ) {;}
HB_FUNC( DBFBLOB ) {;}
static void hb_dbffptRegisterRDD( USHORT * pusRddId )
{
RDDFUNCS * pTable;
USHORT * uiCount, uiRddId;
uiCount = ( USHORT * ) hb_parptr( 1 );
pTable = ( RDDFUNCS * ) hb_parptr( 2 );
uiRddId = hb_parni( 4 );
HB_TRACE(HB_TR_DEBUG, ("DBFFPT_GETFUNCTABLE(%p, %p)", uiCount, pTable));
if( pTable )
{
ERRCODE errCode;
if( uiCount )
* uiCount = RDDFUNCSCOUNT;
errCode = hb_rddInherit( pTable, &fptTable, &fptSuper, "DBF" );
if( errCode == SUCCESS )
*pusRddId = uiRddId;
hb_retni( errCode );
}
else
hb_retni( FAILURE );
}
HB_FUNC( DBFFPT_GETFUNCTABLE )
{
HB_TRACE(HB_TR_DEBUG, ("DBFFPT_GETFUNCTABLE()"));
hb_dbffptRegisterRDD( &s_uiRddIdFPT );
}
HB_FUNC( DBFBLOB_GETFUNCTABLE )
{
HB_TRACE(HB_TR_DEBUG, ("DBFBLOB_GETFUNCTABLE()"));
hb_dbffptRegisterRDD( &s_uiRddIdBLOB );
}
#define __PRG_SOURCE__ __FILE__
#ifdef HB_PCODE_VER
# undef HB_PRG_PCODE_VER
# define HB_PRG_PCODE_VER HB_PCODE_VER
#endif
HB_FUNC_EXTERN( _DBF );
static void hb_dbffptRddInit( void * cargo )
{
HB_SYMBOL_UNUSED( cargo );
if( hb_rddRegister( "DBF", RDT_FULL ) > 1 ||
hb_rddRegister( "DBFFPT", RDT_FULL ) > 1 ||
hb_rddRegister( "DBFBLOB", RDT_FULL ) > 1 )
{
hb_errInternal( HB_EI_RDDINVALID, NULL, NULL, NULL );
/* not executed, only to force DBF RDD linking */
HB_FUNC_EXEC( _DBF );
}
}
HB_INIT_SYMBOLS_BEGIN( dbffpt1__InitSymbols )
{ "DBFFPT", {HB_FS_PUBLIC|HB_FS_LOCAL}, {HB_FUNCNAME( DBFFPT )}, NULL },
{ "DBFFPT_GETFUNCTABLE", {HB_FS_PUBLIC|HB_FS_LOCAL}, {HB_FUNCNAME( DBFFPT_GETFUNCTABLE )}, NULL },
{ "DBFBLOB", {HB_FS_PUBLIC|HB_FS_LOCAL}, {HB_FUNCNAME( DBFBLOB )}, NULL },
{ "DBFBLOB_GETFUNCTABLE", {HB_FS_PUBLIC|HB_FS_LOCAL}, {HB_FUNCNAME( DBFBLOB_GETFUNCTABLE )}, NULL }
HB_INIT_SYMBOLS_END( dbffpt1__InitSymbols )
HB_CALL_ON_STARTUP_BEGIN( _hb_dbffpt_rdd_init_ )
hb_vmAtInit( hb_dbffptRddInit, NULL );
HB_CALL_ON_STARTUP_END( _hb_dbffpt_rdd_init_ )
#if defined( HB_PRAGMA_STARTUP )
#pragma startup dbffpt1__InitSymbols
#pragma startup _hb_dbffpt_rdd_init_
#elif defined( HB_MSC_STARTUP )
#if defined( HB_OS_WIN_64 )
#pragma section( HB_MSC_START_SEGMENT, long, read )
#endif
#pragma data_seg( HB_MSC_START_SEGMENT )
static HB_$INITSYM hb_vm_auto_dbffpt1__InitSymbols = dbffpt1__InitSymbols;
static HB_$INITSYM hb_vm_auto_dbffpt_rdd_init = _hb_dbffpt_rdd_init_;
#pragma data_seg()
#endif
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