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dd31acbb20e1dea660101243fa6bcd6cb4177e2e
harbour-core/harbour/source/rtl/filesys.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

3025 lines
77 KiB
C
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/*
* $Id$
*/
/*
* Harbour Project source code:
* The FileSys API (C level)
*
* Copyright 1999 {list of individual authors and e-mail addresses}
* www - http://www.harbour-project.org
*
* 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.
*
*/
/*
* The following parts are Copyright of the individual authors.
* www - http://www.harbour-project.org
*
* Copyright 1999-2001 Viktor Szakats <viktor.szakats@syenar.hu>
* hb_fsSetError()
* hb_fsSetDevMode()
* hb_fsReadLarge()
* hb_fsWriteLarge()
* hb_fsCurDirBuff()
*
* Copyright 1999 Jose Lalin <dezac@corevia.com>
* hb_fsChDrv()
* hb_fsCurDrv()
* hb_fsIsDrv()
* hb_fsIsDevice()
*
* Copyright 2000 Luiz Rafael Culik <culik@sl.conex.net>
* and David G. Holm <dholm@jsd-llc.com>
* hb_fsEof()
*
* Copyright 2001 Jose Gimenez (JFG) <jfgimenez@wanadoo.es>
* <tecnico.sireinsa@ctv.es>
* Added __WIN32__ check for any compiler to use the Win32
* API calls to allow openning an unlimited number of files
* simultaneously.
*
* See doc/license.txt for licensing terms.
*
*/
/* NOTE: In DOS/DJGPP under WinNT4 hb_fsSeek( fhnd, offset < 0, FS_SET ) will
set the file pointer to the passed negative value and the subsequent
hb_fsWrite() call will fail. In CA-Cl*pper, _fsSeek() will fail,
the pointer will not be moved and thus the _fsWrite() call will
successfully write the buffer to the current file position. [vszakats]
This has been corrected by ptucker
*/
/* *nixes */
#if !defined( _LARGEFILE64_SOURCE )
# define _LARGEFILE64_SOURCE
#endif
/* OS2 */
#define INCL_DOSFILEMGR /* File Manager values */
#define INCL_DOSERRORS /* DOS error values */
#define INCL_DOSDATETIME /* DATETIME functions */
/* W32 */
#define HB_OS_WIN_32_USED
#include <string.h>
#include <ctype.h>
#include "hbapi.h"
#include "hbvm.h"
#include "hbstack.h"
#include "hbapifs.h"
#include "hbapierr.h"
#include "hbdate.h"
#include "hb_io.h"
#include "hbset.h"
#if defined(HB_OS_UNIX_COMPATIBLE)
#include <unistd.h>
#include <signal.h>
#include <time.h>
#include <utime.h>
#include <sys/types.h>
#include <sys/wait.h>
#if defined( HB_OS_DARWIN )
#include <crt_externs.h>
#define environ (*_NSGetEnviron())
#elif !defined( __WATCOMC__ )
extern char **environ;
#endif
#endif
#if ( defined(__DMC__) || defined(__BORLANDC__) || \
defined(__IBMCPP__) || defined(_MSC_VER) || \
defined(__MINGW32__) || defined(__WATCOMC__) ) && \
!defined( HB_OS_UNIX ) && !defined( HB_WINCE )
#include <sys/stat.h>
#include <fcntl.h>
#include <process.h>
#if !defined( __POCC__ ) && !defined( __XCC__ )
#include <share.h>
#endif
#include <direct.h>
#if defined(__BORLANDC__)
#include <dir.h>
#include <dos.h>
#elif defined(__WATCOMC__)
#include <dos.h>
#endif
#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__DMC__)
#include <sys/locking.h>
#define ftruncate _chsize
#if defined(__MINGW32__) && !defined(_LK_UNLCK)
#define _LK_UNLCK _LK_UNLOCK
#endif
#else
#define ftruncate chsize
#endif
#if !defined(HAVE_POSIX_IO)
#define HAVE_POSIX_IO
#endif
#elif defined(__GNUC__) || defined(HB_OS_UNIX)
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#if defined(__CYGWIN__)
#include <io.h>
#elif defined(__DJGPP__)
#include <dir.h>
#include <utime.h>
#include <time.h>
#endif
#if !defined(HAVE_POSIX_IO)
#define HAVE_POSIX_IO
#endif
#endif
#if defined(__MPW__)
#include <fcntl.h>
#endif
#if defined(HB_OS_DOS)
#include <dos.h>
#include <time.h>
#include <utime.h>
#elif defined(HB_OS_OS2)
#include <sys/signal.h>
#include <sys/process.h>
#include <sys/wait.h>
#include <time.h>
#include <share.h>
#ifndef SH_COMPAT
#define SH_COMPAT 0x0000
#endif
#elif defined( HB_WIN32_IO )
#include <windows.h>
#if !defined( INVALID_SET_FILE_POINTER ) && \
( defined(__DMC__) || defined( _MSC_VER ) || defined( __LCC__ ) )
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
#if !defined( INVALID_FILE_ATTRIBUTES )
#define INVALID_FILE_ATTRIBUTES ( ( DWORD ) -1 )
#endif
#endif
#if defined( HB_USE_SHARELOCKS ) && defined( HB_USE_BSDLOCKS )
#include <sys/file.h>
#endif
#if !defined( HB_USE_LARGEFILE64 ) && defined( HB_OS_UNIX_COMPATIBLE )
#if defined( __USE_LARGEFILE64 )
/*
* The macro: __USE_LARGEFILE64 is set when _LARGEFILE64_SOURCE is
* define and efectively enables lseek64/flock64/ftruncate64 functions
* on 32bit machines.
*/
#define HB_USE_LARGEFILE64
#elif defined( HB_OS_HPUX ) && defined( O_LARGEFILE )
#define HB_USE_LARGEFILE64
#endif
#endif
#if defined(HB_OS_HAS_DRIVE_LETTER)
/* 27/08/2004 - <maurilio.longo@libero.it>
HB_FS_GETDRIVE() should return a number in the range 0..25 ('A'..'Z')
HB_FS_SETDRIVE() should accept a number inside same range.
If a particular platform/compiler returns/accepts different ranges of
values, simply define a branch for that platform.
NOTE: There is not an implicit "current disk", ALWAYS use
my_func( hb_fsCurDrv(), ...)
to refer to current disk
*/
#if defined( __DJGPP__ )
#define HB_FS_GETDRIVE(n) do { n = getdisk(); } while( 0 )
#define HB_FS_SETDRIVE(n) setdisk( n )
#elif defined( __WATCOMC__ )
#define HB_FS_GETDRIVE(n) do { _dos_getdrive( &( n ) ); --( n ); } while( 0 )
#define HB_FS_SETDRIVE(n) do { \
UINT uiDummy; \
_dos_setdrive( ( n ) + 1, &uiDummy ); \
} while( 0 )
#elif defined(HB_OS_OS2)
#define HB_FS_GETDRIVE(n) do { n = _getdrive() - 'A'; } while( 0 )
#define HB_FS_SETDRIVE(n) _chdrive( ( n ) + 'A' )
#else
#define HB_FS_GETDRIVE(n) do { \
n = _getdrive(); \
n -= ( ( n ) < 'A' ) ? 1 : 'A'; \
} while( 0 )
#define HB_FS_SETDRIVE(n) _chdrive( ( n ) + 1 )
#endif
#endif /* HB_OS_HAS_DRIVE_LETTER */
#ifndef O_BINARY
#define O_BINARY 0 /* O_BINARY not defined on Linux */
#endif
#ifndef O_LARGEFILE
#define O_LARGEFILE 0 /* O_LARGEFILE is used for LFS in 32-bit Linux */
#endif
#if defined(HAVE_POSIX_IO) || defined( HB_WIN32_IO ) || defined(_MSC_VER) || defined(__MINGW32__) || defined(__LCC__) || defined(__DMC__)
/* Only compilers with Posix or Posix-like I/O support are supported */
#define HB_FS_FILE_IO
#endif
#if defined(__DMC__) || defined(_MSC_VER) || defined(__MINGW32__) || defined(__IBMCPP__) || defined(__WATCOMC__) || defined(HB_OS_OS2)
/* These compilers use sopen() rather than open(), because their
versions of open() do not support combined O_ and SH_ flags */
#define HB_FS_SOPEN
#endif
#if UINT_MAX == USHRT_MAX
#define LARGE_MAX ( UINT_MAX - 1L )
#else
#define HB_FS_LARGE_OPTIMIZED
#endif
static BOOL s_fUseWaitLocks = TRUE;
#if defined(HB_FS_FILE_IO)
#if defined(HB_WIN32_IO)
static HANDLE DosToWinHandle( HB_FHANDLE fHandle )
{
if( fHandle == ( HB_FHANDLE ) 0 )
return GetStdHandle( STD_INPUT_HANDLE );
else if( fHandle == ( HB_FHANDLE ) 1 )
return GetStdHandle( STD_OUTPUT_HANDLE );
else if( fHandle == ( HB_FHANDLE ) 2 )
return GetStdHandle( STD_ERROR_HANDLE) ;
else
return ( HANDLE ) fHandle;
}
static void convert_open_flags( BOOL fCreate, ULONG ulAttr, USHORT uiFlags,
DWORD *dwMode, DWORD *dwShare,
DWORD *dwCreat, DWORD *dwAttr )
{
if( fCreate )
{
*dwCreat = CREATE_ALWAYS;
*dwMode = GENERIC_READ | GENERIC_WRITE;
}
else
{
if( uiFlags & FO_CREAT )
{
if( uiFlags & FO_EXCL )
*dwCreat = CREATE_NEW;
else if( uiFlags & FO_TRUNC )
*dwCreat = CREATE_ALWAYS;
else
*dwCreat = OPEN_ALWAYS;
}
else if( uiFlags & FO_TRUNC )
{
*dwCreat = TRUNCATE_EXISTING;
}
else
{
*dwCreat = OPEN_EXISTING;
}
*dwMode = 0;
switch( uiFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) )
{
case FO_READWRITE:
*dwMode |= GENERIC_READ | GENERIC_WRITE;
break;
case FO_WRITE:
*dwMode |= GENERIC_WRITE;
break;
case FO_READ:
*dwMode |= GENERIC_READ;
break;
}
}
/* shared flags */
switch( uiFlags & ( FO_DENYREAD | FO_DENYWRITE | FO_EXCLUSIVE | FO_DENYNONE ) )
{
case FO_DENYREAD:
*dwShare = FILE_SHARE_WRITE;
break;
case FO_DENYWRITE:
*dwShare = FILE_SHARE_READ;
break;
case FO_EXCLUSIVE:
*dwShare = 0;
break;
default:
*dwShare = FILE_SHARE_WRITE | FILE_SHARE_READ;
break;
}
/* file attributes flags */
if( ulAttr == FC_NORMAL )
{
*dwAttr = FILE_ATTRIBUTE_NORMAL;
}
else
{
*dwAttr = FILE_ATTRIBUTE_ARCHIVE;
if( ulAttr & FC_READONLY )
*dwAttr |= FILE_ATTRIBUTE_READONLY;
if( ulAttr & FC_HIDDEN )
*dwAttr |= FILE_ATTRIBUTE_HIDDEN;
if( ulAttr & FC_SYSTEM )
*dwAttr |= FILE_ATTRIBUTE_SYSTEM;
}
}
#else
static void convert_open_flags( BOOL fCreate, ULONG ulAttr, USHORT uiFlags,
int *flags, unsigned *mode,
int *share, int *attr )
{
HB_TRACE(HB_TR_DEBUG, ("convert_open_flags(%d, %lu, %hu, %p, %p, %p, %p)", fCreate, ulAttr, uiFlags, flags, mode, share, attr));
/* file access mode */
#if defined( HB_OS_UNIX )
*mode = HB_FA_POSIX_ATTR( ulAttr );
if( *mode == 0 )
{
*mode = ( ulAttr & FC_HIDDEN ) ? S_IRUSR : ( S_IRUSR | S_IRGRP | S_IROTH );
if( !( ulAttr & FC_READONLY ) )
{
if( *mode & S_IRUSR ) *mode |= S_IWUSR;
if( *mode & S_IRGRP ) *mode |= S_IWGRP;
if( *mode & S_IROTH ) *mode |= S_IWOTH;
}
if( ulAttr & FC_SYSTEM )
{
if( *mode & S_IRUSR ) *mode |= S_IXUSR;
if( *mode & S_IRGRP ) *mode |= S_IXGRP;
if( *mode & S_IROTH ) *mode |= S_IXOTH;
}
}
#else
*mode = S_IREAD |
( ( ulAttr & FC_READONLY ) ? 0 : S_IWRITE ) |
( ( ulAttr & FC_SYSTEM ) ? S_IEXEC : 0 );
#endif
/* dos file attributes */
#if defined( HB_FS_DOSATTR )
if( ulAttr == FC_NORMAL )
{
*attr = _A_NORMAL;
}
else
{
*attr = _A_ARCH;
if( ulAttr & FC_READONLY )
*attr |= _A_READONLY;
if( ulAttr & FC_HIDDEN )
*attr |= _A_HIDDEN;
if( ulAttr & FC_SYSTEM )
*attr |= _A_SYSTEM;
}
#else
*attr = 0;
#endif
if( fCreate )
{
*flags = O_RDWR | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE |
( ( uiFlags & FO_EXCL ) ? O_EXCL : 0 );
}
else
{
*attr = 0;
*flags = O_BINARY | O_LARGEFILE;
switch( uiFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) )
{
case FO_READ:
*flags |= O_RDONLY;
break;
case FO_WRITE:
*flags |= O_WRONLY;
break;
case FO_READWRITE:
*flags |= O_RDWR;
break;
default:
/* this should not happen and it's here to force default OS behavior */
*flags |= ( O_RDONLY | O_WRONLY | O_RDWR );
break;
}
if( uiFlags & FO_CREAT ) *flags |= O_CREAT;
if( uiFlags & FO_TRUNC ) *flags |= O_TRUNC;
if( uiFlags & FO_EXCL ) *flags |= O_EXCL;
}
/* shared flags (HB_FS_SOPEN) */
#if defined( _MSC_VER ) || defined( __DMC__ )
if( ( uiFlags & FO_DENYREAD ) == FO_DENYREAD )
*share = _SH_DENYRD;
else if( uiFlags & FO_EXCLUSIVE )
*share = _SH_DENYRW;
else if( uiFlags & FO_DENYWRITE )
*share = _SH_DENYWR;
else if( uiFlags & FO_DENYNONE )
*share = _SH_DENYNO;
else
*share = _SH_COMPAT;
#elif !defined( HB_OS_UNIX )
if( ( uiFlags & FO_DENYREAD ) == FO_DENYREAD )
*share = SH_DENYRD;
else if( uiFlags & FO_EXCLUSIVE )
*share = SH_DENYRW;
else if( uiFlags & FO_DENYWRITE )
*share = SH_DENYWR;
else if( uiFlags & FO_DENYNONE )
*share = SH_DENYNO;
else
*share = SH_COMPAT;
#else
*share = 0;
#endif
HB_TRACE(HB_TR_INFO, ("convert_open_flags: flags=0x%04x, mode=0x%04x, share=0x%04x, attr=0x%04x", *flags, *mode, *share, *attr));
}
#endif
static USHORT convert_seek_flags( USHORT uiFlags )
{
/* by default FS_SET is set */
USHORT result_flags = SEEK_SET;
HB_TRACE(HB_TR_DEBUG, ("convert_seek_flags(%hu)", uiFlags));
if( uiFlags & FS_RELATIVE )
result_flags = SEEK_CUR;
if( uiFlags & FS_END )
result_flags = SEEK_END;
return result_flags;
}
#endif
/*
* filesys.api functions:
*/
HB_EXPORT HB_FHANDLE hb_fsGetOsHandle( HB_FHANDLE hFileHandle )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fsGetOsHandle(%p)", hFileHandle));
#if defined(HB_WIN32_IO)
return ( HB_FHANDLE ) DosToWinHandle( hFileHandle );
#else
return hFileHandle;
#endif
}
HB_EXPORT HB_FHANDLE hb_fsPOpen( BYTE * pFilename, BYTE * pMode )
{
HB_FHANDLE hFileHandle = FS_ERROR;
HB_TRACE(HB_TR_DEBUG, ("hb_fsPOpen(%p, %s)", pFilename, pMode));
#if defined(HB_OS_UNIX_COMPATIBLE) && !defined(__CYGWIN__)
{
HB_FHANDLE hPipeHandle[2], hNullHandle;
pid_t pid;
BYTE * pbyTmp;
BOOL bRead;
ULONG ulLen;
int iMaxFD;
ulLen = strlen( ( char * ) pFilename );
if( pMode && ( *pMode == 'r' || *pMode == 'w' ) )
bRead = ( *pMode == 'r' );
else
{
if( pFilename[0] == '|' )
bRead = FALSE;
else if( pFilename[ ulLen - 1 ] == '|' )
bRead = TRUE;
else
bRead = FALSE;
}
if( pFilename[0] == '|' )
{
++pFilename;
--ulLen;
}
if( pFilename[ ulLen - 1 ] == '|' )
{
pbyTmp = ( BYTE * ) hb_strdup( ( char * ) pFilename );
pbyTmp[--ulLen] = 0;
pFilename = pbyTmp;
} else
pbyTmp = NULL;
hb_vmUnlock();
if( pipe( hPipeHandle ) == 0 ) {
if( ( pid = fork() ) != -1 ) {
if( pid != 0 ) {
if( bRead ) {
close( hPipeHandle[ 1 ] );
hFileHandle = hPipeHandle[ 0 ];
} else {
close( hPipeHandle[ 0 ] );
hFileHandle = hPipeHandle[ 1 ];
}
} else {
char *argv[4];
argv[0] = "sh";
argv[1] = "-c";
argv[2] = ( char * ) pFilename;
argv[3] = ( char * ) 0;
hNullHandle = open("/dev/null", O_RDWR);
if( bRead ) {
close( hPipeHandle[ 0 ] );
dup2( hPipeHandle[ 1 ], 1 );
dup2( hNullHandle, 0 );
dup2( hNullHandle, 2 );
} else {
close( hPipeHandle[ 1 ] );
dup2( hPipeHandle[ 0 ], 0 );
dup2( hNullHandle, 1 );
dup2( hNullHandle, 2 );
}
iMaxFD = sysconf( _SC_OPEN_MAX );
if( iMaxFD < 3 )
iMaxFD = 1024;
for( hNullHandle = 3; hNullHandle < iMaxFD; ++hNullHandle )
close(hNullHandle);
setuid(getuid());
setgid(getgid());
execve("/bin/sh", argv, environ);
exit(1);
}
}
else
{
close( hPipeHandle[0] );
close( hPipeHandle[1] );
}
}
hb_vmLock();
hb_fsSetIOError( hFileHandle != FS_ERROR, 0 );
if( pbyTmp )
hb_xfree( pbyTmp );
}
#else
HB_SYMBOL_UNUSED( pFilename );
HB_SYMBOL_UNUSED( pMode );
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return hFileHandle;
}
HB_EXPORT HB_FHANDLE hb_fsOpen( BYTE * pFilename, USHORT uiFlags )
{
HB_FHANDLE hFileHandle;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsOpen(%p, %hu)", pFilename, uiFlags));
pFilename = hb_fsNameConv( pFilename, &fFree );
#if defined(HB_WIN32_IO)
{
DWORD dwMode, dwShare, dwCreat, dwAttr;
HANDLE hFile;
convert_open_flags( FALSE, FC_NORMAL, uiFlags, &dwMode, &dwShare, &dwCreat, &dwAttr );
hb_vmUnlock();
hFile = ( HANDLE ) CreateFileA( ( char * ) pFilename, dwMode, dwShare,
NULL, dwCreat, dwAttr, NULL );
hb_vmLock();
hb_fsSetIOError( hFile != ( HANDLE ) INVALID_HANDLE_VALUE, 0 );
hFileHandle = ( HB_FHANDLE ) hFile;
}
#elif defined(HB_FS_FILE_IO)
{
int flags, share, attr;
unsigned mode;
convert_open_flags( FALSE, FC_NORMAL, uiFlags, &flags, &mode, &share, &attr );
hb_vmUnlock();
#if defined(_MSC_VER) || defined(__DMC__)
if( share )
hFileHandle = _sopen( ( char * ) pFilename, flags, share, mode );
else
hFileHandle = _open( ( char * ) pFilename, flags, mode );
#elif defined(HB_FS_SOPEN)
if( share )
hFileHandle = sopen( ( char * ) pFilename, flags, share, mode );
else
hFileHandle = open( ( char * ) pFilename, flags, mode );
#else
hFileHandle = open( ( char * ) pFilename, flags | share, mode );
#endif
hb_vmLock();
hb_fsSetIOError( hFileHandle != FS_ERROR, 0 );
}
#else
hFileHandle = FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pFilename );
return hFileHandle;
}
HB_EXPORT HB_FHANDLE hb_fsCreate( BYTE * pFilename, ULONG ulAttr )
{
HB_FHANDLE hFileHandle;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsCreate(%p, %lu)", pFilename, ulAttr));
pFilename = hb_fsNameConv( pFilename, &fFree );
#if defined(HB_WIN32_IO)
{
DWORD dwMode, dwShare, dwCreat, dwAttr;
HANDLE hFile;
convert_open_flags( TRUE, ulAttr, FO_EXCLUSIVE, &dwMode, &dwShare, &dwCreat, &dwAttr );
hb_vmUnlock();
hFile = ( HANDLE ) CreateFileA( ( char * ) pFilename, dwMode, dwShare,
NULL, dwCreat, dwAttr, NULL );
hb_vmLock();
hb_fsSetIOError( hFile != ( HANDLE ) INVALID_HANDLE_VALUE, 0 );
hFileHandle = ( HB_FHANDLE ) hFile;
}
#elif defined(HB_FS_FILE_IO)
{
int flags, share, attr;
unsigned mode;
convert_open_flags( TRUE, ulAttr, FO_EXCLUSIVE, &flags, &mode, &share, &attr );
hb_vmUnlock();
#if defined(HB_FS_DOSCREAT)
hFileHandle = _creat( ( char * ) pFilename, attr );
#elif defined(HB_FS_SOPEN)
hFileHandle = open( ( char * ) pFilename, flags, mode );
#else
hFileHandle = open( ( char * ) pFilename, flags | share, mode );
#endif
hb_vmLock();
hb_fsSetIOError( hFileHandle != FS_ERROR, 0 );
}
#else
hFileHandle = FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pFilename );
return hFileHandle;
}
/* Derived from hb_fsCreate()
NOTE: The default opening mode differs from the one used in hb_fsCreate()
[vszakats]
*/
HB_EXPORT HB_FHANDLE hb_fsCreateEx( BYTE * pFilename, ULONG ulAttr, USHORT uiFlags )
{
HB_FHANDLE hFileHandle;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsCreateEx(%p, %lu, %hu)", pFilename, ulAttr, uiFlags));
pFilename = hb_fsNameConv( pFilename, &fFree );
#if defined( HB_WIN32_IO )
{
DWORD dwMode, dwShare, dwCreat, dwAttr;
HANDLE hFile;
convert_open_flags( TRUE, ulAttr, uiFlags, &dwMode, &dwShare, &dwCreat, &dwAttr );
hb_vmUnlock();
hFile = ( HANDLE ) CreateFileA( ( char * ) pFilename, dwMode, dwShare,
NULL, dwCreat, dwAttr, NULL );
hb_vmLock();
hb_fsSetIOError( hFile != ( HANDLE ) INVALID_HANDLE_VALUE, 0 );
hFileHandle = ( HB_FHANDLE ) hFile;
}
#elif defined(HB_FS_FILE_IO)
{
int flags, share, attr;
unsigned mode;
convert_open_flags( TRUE, ulAttr, uiFlags, &flags, &mode, &share, &attr );
hb_vmUnlock();
#if defined(HB_FS_SOPEN)
hFileHandle = open( ( char * ) pFilename, flags, mode );
#else
hFileHandle = open( ( char * ) pFilename, flags | share, mode );
#endif
hb_vmLock();
hb_fsSetIOError( hFileHandle != FS_ERROR, 0 );
}
#else
hFileHandle = FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pFilename );
return hFileHandle;
}
HB_EXPORT void hb_fsClose( HB_FHANDLE hFileHandle )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fsClose(%p)", hFileHandle));
#if defined(HB_FS_FILE_IO)
hb_vmUnlock();
#if defined(HB_WIN32_IO)
hb_fsSetIOError( CloseHandle( DosToWinHandle( hFileHandle ) ), 0 );
#else
hb_fsSetIOError( close( hFileHandle ) == 0, 0 );
#endif
hb_vmLock();
#else
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
}
HB_EXPORT BOOL hb_fsSetDevMode( HB_FHANDLE hFileHandle, USHORT uiDevMode )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fsSetDevMode(%p, %hu)", hFileHandle, uiDevMode));
/* TODO: HB_WIN32_IO support */
#if defined(__BORLANDC__) || defined(__IBMCPP__) || defined(__DJGPP__) || \
defined(__CYGWIN__) || defined(__WATCOMC__) || defined(HB_OS_OS2)
{
int iRet = 0;
#if defined(HB_WIN32_IO)
if( hFileHandle > 2 )
iRet = -1;
else
#endif
switch( uiDevMode )
{
case FD_BINARY:
iRet = setmode( hFileHandle, O_BINARY );
break;
case FD_TEXT:
iRet = setmode( hFileHandle, O_TEXT );
break;
}
hb_fsSetIOError( iRet != -1, 0 );
return iRet != -1;
}
#elif ( defined(_MSC_VER) || defined(__MINGW32__) || defined(__DMC__) ) && \
!defined(HB_WINCE)
{
int iRet = 0;
#if defined(HB_WIN32_IO)
if( ( HB_NHANDLE ) hFileHandle > 2 )
iRet = -1;
else
#endif
switch( uiDevMode )
{
case FD_BINARY:
iRet = _setmode( ( HB_NHANDLE ) hFileHandle, _O_BINARY );
break;
case FD_TEXT:
iRet = _setmode( ( HB_NHANDLE ) hFileHandle, _O_TEXT );
break;
}
hb_fsSetIOError( iRet != -1, 0 );
return iRet != -1;
}
#elif defined( HB_OS_UNIX ) || defined( HB_WINCE )
HB_SYMBOL_UNUSED( hFileHandle );
if( uiDevMode == FD_TEXT )
{
hb_fsSetError( ( USHORT ) FS_ERROR );
return FALSE;
}
hb_fsSetError( 0 );
return TRUE;
#else
hb_fsSetError( ( USHORT ) FS_ERROR );
return FALSE;
#endif
}
HB_EXPORT BOOL hb_fsGetFileTime( BYTE * pszFileName, LONG * plJulian, LONG * plMillisec )
{
BOOL fResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsGetFileTime(%s, %p, %p)", pszFileName, plJulian, plMillisec));
fResult = FALSE;
#if defined( HB_WIN32_IO )
{
HB_FHANDLE hFile = hb_fsOpen( pszFileName, FO_READ | FO_SHARED );
if( hFile != FS_ERROR )
{
FILETIME ft, local_ft;
SYSTEMTIME st;
hb_vmUnlock();
if( GetFileTime( DosToWinHandle( hFile ), NULL, NULL, &ft ) &&
FileTimeToLocalFileTime( &ft, &local_ft ) &&
FileTimeToSystemTime( &local_ft, &st ) )
{
*plJulian = hb_dateEncode( st.wYear, st.wMonth, st.wDay );
*plMillisec = hb_timeStampEncode( st.wHour, st.wMinute, st.wSecond, st.wMilliseconds );
fResult = TRUE;
}
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
hb_fsClose( hFile );
}
}
#elif defined( HB_OS_UNIX ) || defined( HB_OS_OS2 ) || defined( HB_OS_DOS ) || defined( __GNUC__ )
{
struct stat sStat;
BOOL fFree;
pszFileName = hb_fsNameConv( pszFileName, &fFree );
hb_vmUnlock();
if( stat( ( char * ) pszFileName, &sStat ) == 0 )
{
time_t ftime;
struct tm * ft;
ftime = sStat.st_mtime;
ft = localtime( &ftime );
*plJulian = hb_dateEncode( ft->tm_year + 1900, ft->tm_mon + 1, ft->tm_mday );
*plMillisec = hb_timeStampEncode( ft->tm_hour, ft->tm_min, ft->tm_sec, 0 );
fResult = TRUE;
}
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
if( fFree )
hb_xfree( pszFileName );
}
#else
{
int TODO; /* TODO: for given platform */
HB_SYMBOL_UNUSED( pszFileName );
HB_SYMBOL_UNUSED( plJulian );
HB_SYMBOL_UNUSED( plMillisec );
}
#endif
return fResult;
}
HB_EXPORT BOOL hb_fsGetAttr( BYTE * pszFileName, ULONG * pulAttr )
{
BOOL fResult;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsGetAttr(%s, %p)", pszFileName, pulAttr));
fResult = FALSE;
pszFileName = hb_fsNameConv( pszFileName, &fFree );
#if defined( HB_OS_WIN_32 )
{
DWORD dwAttr;
hb_vmUnlock();
dwAttr = GetFileAttributesA( ( char * ) pszFileName );
if( dwAttr != INVALID_FILE_ATTRIBUTES )
{
*pulAttr = hb_fsAttrFromRaw( dwAttr );
fResult = TRUE;
}
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
}
#elif defined( HB_OS_DOS )
{
#if defined( __DJGPP__ ) || defined(__BORLANDC__)
int attr;
hb_vmUnlock();
attr = _chmod( ( char * ) pszFileName, 0, 0 );
hb_vmLock();
if( attr != -1 )
#else
unsigned int attr = 0;
hb_vmUnlock();
if( _dos_getfileattr( ( char * ) pszFileName, &attr ) == 0 )
#endif
{
*pulAttr = hb_fsAttrFromRaw( attr );
fResult = TRUE;
}
hb_vmLock();
}
#elif defined( HB_OS_OS2 )
{
FILESTATUS3 fs3;
APIRET ulrc;
hb_vmUnlock();
ulrc = DosQueryPathInfo( ( PSZ ) pszFileName, FIL_STANDARD, &fs3, sizeof( fs3 ) );
hb_vmLock();
if( ulrc == NO_ERROR )
{
*pulAttr = hb_fsAttrFromRaw( fs3.attrFile );
fResult = TRUE;
}
hb_fsSetIOError( fResult, 0 );
}
#elif defined( HB_OS_UNIX )
{
struct stat sStat;
hb_vmUnlock();
if( stat( ( char * ) pszFileName, &sStat ) == 0 )
{
*pulAttr = hb_fsAttrFromRaw( sStat.st_mode );
fResult = TRUE;
}
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
}
#else
{
int TODO; /* TODO: for given platform */
HB_SYMBOL_UNUSED( pszFileName );
HB_SYMBOL_UNUSED( pulAttr );
}
#endif
if( fFree )
hb_xfree( pszFileName );
return fResult;
}
HB_EXPORT BOOL hb_fsSetFileTime( BYTE * pszFileName, LONG lJulian, LONG lMillisec )
{
BOOL fResult;
int iYear, iMonth, iDay;
int iHour, iMinute, iSecond, iMSec;
HB_TRACE(HB_TR_DEBUG, ("hb_fsSetFileTime(%s, %ld, %ld)", pszFileName, lJulian, lMillisec));
hb_dateDecode( lJulian, &iYear, &iMonth, &iDay );
hb_timeStampDecode( lMillisec, &iHour, &iMinute, &iSecond, &iMSec );
#if defined( HB_OS_WIN_32 ) && !defined( __CYGWIN__ )
{
HB_FHANDLE hFile = hb_fsOpen( pszFileName, FO_READWRITE | FO_SHARED );
fResult = hFile != FS_ERROR;
if( fResult )
{
FILETIME ft, local_ft;
SYSTEMTIME st;
hb_vmUnlock();
if( lJulian <= 0 || lMillisec < 0 )
GetLocalTime( &st );
else
memset( &st, 0, sizeof( st ) );
if( lJulian > 0 )
{
st.wYear = ( WORD ) iYear;
st.wMonth = ( WORD ) iMonth;
st.wDay = ( WORD ) iDay;
}
if( lMillisec >= 0 )
{
st.wHour = ( WORD ) iHour;
st.wMinute = ( WORD ) iMinute;
st.wSecond = ( WORD ) iSecond;
st.wMilliseconds = ( WORD ) iMSec;
}
SystemTimeToFileTime( &st, &local_ft );
LocalFileTimeToFileTime( &local_ft, &ft );
fResult = SetFileTime( DosToWinHandle( hFile ), NULL, &ft, &ft ) != 0;
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
hb_fsClose( hFile );
}
}
#elif defined( HB_OS_OS2 )
{
FILESTATUS3 fs3;
APIRET ulrc;
BOOL fFree;
pszFileName = hb_fsNameConv( pszFileName, &fFree );
hb_vmUnlock();
ulrc = DosQueryPathInfo( ( PSZ ) pszFileName, FIL_STANDARD, &fs3, sizeof( fs3 ) );
if( ulrc == NO_ERROR )
{
FDATE fdate;
FTIME ftime;
if( lJulian <= 0 || lMillisec < 0 )
{
DATETIME dt;
DosGetDateTime( &dt );
fdate.year = dt.year - 1980;
fdate.month = dt.month;
fdate.day = dt.day;
ftime.hours = dt.hours;
ftime.minutes = dt.minutes;
ftime.twosecs = dt.seconds / 2;
}
if( lJulian > 0 )
{
fdate.year = iYear - 1980;
fdate.month = iMonth;
fdate.day = iDay;
}
if( lMillisec >= 0 )
{
ftime.hours = iHour;
ftime.minutes = iMinute;
ftime.twosecs = iSecond / 2;
}
fs3.fdateCreation = fs3.fdateLastAccess = fs3.fdateLastWrite = fdate;
fs3.ftimeCreation = fs3.ftimeLastAccess = fs3.ftimeLastWrite = ftime;
ulrc = DosSetPathInfo( ( PSZ ) pszFileName, FIL_STANDARD,
&fs3, sizeof( fs3 ), DSPI_WRTTHRU );
}
hb_vmLock();
fResult = ulrc == NO_ERROR;
hb_fsSetIOError( fResult, 0 );
if( fFree )
hb_xfree( pszFileName );
}
#elif defined( HB_OS_UNIX_COMPATIBLE ) || defined( HB_OS_DOS )
{
BOOL fFree;
pszFileName = hb_fsNameConv( pszFileName, &fFree );
if( lJulian <= 0 && lMillisec )
{
hb_vmUnlock();
fResult = utime( ( char * ) pszFileName, NULL ) == 0;
hb_vmLock();
}
else
{
struct utimbuf buf;
struct tm new_value;
time_t tim;
hb_vmUnlock();
if( lJulian <= 0 || lMillisec < 0 )
{
time_t current_time;
current_time = time( NULL );
# if _POSIX_C_SOURCE < 199506L || defined( HB_OS_DARWIN_5 )
new_value = *localtime( &current_time );
# else
localtime_r( &current_time, &new_value );
# endif
}
else
memset( &new_value, 0, sizeof( new_value ) );
if( lJulian > 0 )
{
new_value.tm_year = iYear - 1900;
new_value.tm_mon = iMonth - 1;
new_value.tm_mday = iDay;
}
if( lMillisec >= 0 )
{
new_value.tm_hour = iHour;
new_value.tm_min = iMinute;
new_value.tm_sec = iSecond;
}
tim = mktime( &new_value );
# if _POSIX_C_SOURCE < 199506L || defined( HB_OS_DARWIN_5 )
new_value = *gmtime( &tim );
# else
gmtime_r( &tim, &new_value );
# endif
buf.actime = buf.modtime = mktime( &new_value );
fResult = utime( ( char * ) pszFileName, &buf ) == 0;
hb_vmLock();
}
hb_fsSetIOError( fResult, 0 );
if( fFree )
hb_xfree( pszFileName );
}
#else
{
int TODO; /* To force warning */
fResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
}
#endif
return fResult;
}
HB_EXPORT BOOL hb_fsSetAttr( BYTE * pszFileName, ULONG ulAttr )
{
BOOL fResult;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsSetAttr(%s, %lu)", pszFileName, ulAttr));
pszFileName = hb_fsNameConv( pszFileName, &fFree );
#if defined( HB_OS_WIN_32 )
{
DWORD dwFlags = FILE_ATTRIBUTE_ARCHIVE;
if( ulAttr & HB_FA_READONLY )
dwFlags |= FILE_ATTRIBUTE_READONLY;
if( ulAttr & HB_FA_HIDDEN )
dwFlags |= FILE_ATTRIBUTE_HIDDEN;
if( ulAttr & HB_FA_SYSTEM )
dwFlags |= FILE_ATTRIBUTE_SYSTEM;
if( ulAttr & HB_FA_NORMAL )
dwFlags |= FILE_ATTRIBUTE_NORMAL;
hb_vmUnlock();
fResult = SetFileAttributesA( ( char * ) pszFileName, dwFlags );
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
}
#elif defined( HB_OS_OS2 )
{
FILESTATUS3 fs3;
APIRET ulrc;
ULONG ulOsAttr = FILE_NORMAL;
if( ulAttr & HB_FA_READONLY )
ulOsAttr |= FILE_READONLY;
if( ulAttr & HB_FA_HIDDEN )
ulOsAttr |= FILE_HIDDEN;
if( ulAttr & HB_FA_SYSTEM )
ulOsAttr |= FILE_SYSTEM;
if( ulAttr & HB_FA_ARCHIVE )
ulOsAttr |= FILE_ARCHIVED;
hb_vmUnlock();
ulrc = DosQueryPathInfo( ( PSZ ) pszFileName, FIL_STANDARD, &fs3, sizeof( fs3 ) );
if( ulrc == NO_ERROR )
{
fs3.attrFile = ulOsAttr;
ulrc = DosSetPathInfo( ( PSZ ) pszFileName, FIL_STANDARD,
&fs3, sizeof( fs3 ), DSPI_WRTTHRU );
}
hb_vmLock();
fResult = ulrc == NO_ERROR;
hb_fsSetIOError( fResult, 0 );
}
#elif defined( HB_OS_DOS )
ulAttr &= ~( HB_FA_ARCHIVE | HB_FA_HIDDEN | HB_FA_READONLY | HB_FA_SYSTEM );
hb_vmUnlock();
# if defined( __DJGPP__ ) || defined( __BORLANDC__ )
fResult = _chmod( ( char * ) pszFileName, 1, ulAttr ) != -1;
# else
fResult = _dos_setfileattr( ( char * ) pszFileName, ulAttr ) != -1;
# endif
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
#elif defined( HB_OS_UNIX_COMPATIBLE )
{
int iAttr = HB_FA_POSIX_ATTR( ulAttr );
if( iAttr == 0 )
{
iAttr = ( ulAttr & HB_FA_HIDDEN ) ? S_IRUSR : ( S_IRUSR | S_IRGRP | S_IROTH );
if( !( ulAttr & HB_FA_READONLY ) )
{
if( iAttr & S_IRUSR ) iAttr |= S_IWUSR;
if( iAttr & S_IRGRP ) iAttr |= S_IWGRP;
if( iAttr & S_IROTH ) iAttr |= S_IWOTH;
}
if( ulAttr & HB_FA_SYSTEM )
{
if( iAttr & S_IRUSR ) iAttr |= S_IXUSR;
if( iAttr & S_IRGRP ) iAttr |= S_IXGRP;
if( iAttr & S_IROTH ) iAttr |= S_IXOTH;
}
}
hb_vmUnlock();
fResult = chmod( ( char * ) pszFileName, iAttr ) != -1;
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
}
#else
{
int TODO; /* To force warning */
fResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
}
#endif
if( fFree )
hb_xfree( pszFileName );
return fResult;
}
HB_EXPORT USHORT hb_fsRead( HB_FHANDLE hFileHandle, BYTE * pBuff, USHORT uiCount )
{
USHORT uiRead;
HB_TRACE(HB_TR_DEBUG, ("hb_fsRead(%p, %p, %hu)", hFileHandle, pBuff, uiCount));
#if defined(HB_FS_FILE_IO)
#if defined(HB_WIN32_IO)
{
DWORD dwRead ;
BOOL fResult;
hb_vmUnlock();
fResult = ReadFile( DosToWinHandle( hFileHandle ), pBuff, ( DWORD ) uiCount, &dwRead, NULL );
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
uiRead = fResult ? ( USHORT ) dwRead : 0;
}
#else
hb_vmUnlock();
uiRead = read( hFileHandle, pBuff, uiCount );
hb_vmLock();
hb_fsSetIOError( uiRead != ( USHORT ) -1, 0 );
#endif
if( uiRead == ( USHORT ) -1 )
uiRead = 0;
#else
uiRead = 0;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return uiRead;
}
HB_EXPORT USHORT hb_fsWrite( HB_FHANDLE hFileHandle, const BYTE * pBuff, USHORT uiCount )
{
USHORT uiWritten;
HB_TRACE(HB_TR_DEBUG, ("hb_fsWrite(%p, %p, %hu)", hFileHandle, pBuff, uiCount));
#if defined(HB_FS_FILE_IO)
#if defined(HB_WIN32_IO)
{
DWORD dwWritten = 0;
BOOL fResult;
hb_vmUnlock();
if( uiCount )
{
fResult = WriteFile( DosToWinHandle( hFileHandle ), pBuff, uiCount, &dwWritten, NULL );
}
else
{
dwWritten = 0;
fResult = SetEndOfFile( DosToWinHandle( hFileHandle ) );
}
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
uiWritten = fResult ? ( USHORT ) dwWritten : 0;
}
#else
if( uiCount )
{
hb_vmUnlock();
uiWritten = write( hFileHandle, pBuff, uiCount );
hb_vmLock();
hb_fsSetIOError( uiWritten != ( USHORT ) -1, 0 );
if( uiWritten == ( USHORT ) -1 )
uiWritten = 0;
}
else
{
hb_vmUnlock();
#if defined(HB_USE_LARGEFILE64)
hb_fsSetIOError( ftruncate64( hFileHandle, lseek64( hFileHandle, 0L, SEEK_CUR ) ) != -1, 0 );
#else
hb_fsSetIOError( ftruncate( hFileHandle, lseek( hFileHandle, 0L, SEEK_CUR ) ) != -1, 0 );
#endif
hb_vmLock();
uiWritten = 0;
}
#endif
#else
uiWritten = 0;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return uiWritten;
}
HB_EXPORT ULONG hb_fsReadLarge( HB_FHANDLE hFileHandle, BYTE * pBuff, ULONG ulCount )
{
ULONG ulRead;
HB_TRACE(HB_TR_DEBUG, ("hb_fsReadLarge(%p, %p, %lu)", hFileHandle, pBuff, ulCount));
#if defined(HB_FS_FILE_IO)
#if defined(HB_WIN32_IO)
{
hb_vmUnlock();
hb_fsSetIOError( ReadFile( DosToWinHandle( hFileHandle ),
pBuff, ulCount, &ulRead, NULL ), 0 );
hb_vmLock();
}
#elif defined(HB_FS_LARGE_OPTIMIZED)
{
hb_vmUnlock();
ulRead = read( hFileHandle, pBuff, ulCount );
hb_vmLock();
hb_fsSetIOError( ulRead != (ULONG) -1, 0 );
}
#else
{
ULONG ulLeftToRead = ulCount;
USHORT uiToRead;
USHORT uiRead;
BYTE * pPtr = pBuff;
ulRead = 0;
hb_vmUnlock();
while( ulLeftToRead )
{
/* Determine how much to read this time */
if( ulLeftToRead > ( ULONG ) INT_MAX )
{
uiToRead = INT_MAX;
ulLeftToRead -= ( ULONG ) uiToRead;
}
else
{
uiToRead = ( USHORT ) ulLeftToRead;
ulLeftToRead = 0;
}
uiRead = read( hFileHandle, pPtr, uiToRead );
/* -1 on bad hFileHandle
0 on disk full
*/
if( uiRead == 0 )
break;
if( uiRead == ( USHORT ) -1 )
{
uiRead = 0;
break;
}
ulRead += ( ULONG ) uiRead;
pPtr += uiRead;
}
hb_vmLock();
hb_fsSetIOError( ulLeftToRead == 0, 0 );
}
#endif
#else
ulRead = 0;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return ulRead;
}
HB_EXPORT ULONG hb_fsWriteLarge( HB_FHANDLE hFileHandle, const BYTE * pBuff, ULONG ulCount )
{
ULONG ulWritten;
HB_TRACE(HB_TR_DEBUG, ("hb_fsWriteLarge(%p, %p, %lu)", hFileHandle, pBuff, ulCount));
#if defined(HB_FS_FILE_IO)
#if defined(HB_WIN32_IO)
{
ulWritten = 0;
hb_vmUnlock();
if( ulCount )
{
hb_fsSetIOError( WriteFile( DosToWinHandle( hFileHandle), pBuff, ulCount, &ulWritten, NULL ), 0 );
}
else
{
hb_fsSetIOError( SetEndOfFile( DosToWinHandle( hFileHandle ) ), 0 );
}
hb_vmLock();
}
#else
if( ulCount )
#if defined(HB_FS_LARGE_OPTIMIZED)
{
hb_vmUnlock();
ulWritten = write( hFileHandle, pBuff, ulCount );
hb_vmLock();
hb_fsSetIOError( ulWritten != ( ULONG ) -1, 0 );
if( ulWritten == ( ULONG ) -1 )
ulWritten = 0;
}
#else
{
ULONG ulLeftToWrite = ulCount;
USHORT uiToWrite;
USHORT uiWritten;
BYTE * pPtr = ( BYTE * ) pBuff;
ulWritten = 0;
hb_vmUnlock();
while( ulLeftToWrite )
{
/* Determine how much to write this time */
if( ulLeftToWrite > ( ULONG ) INT_MAX )
{
uiToWrite = INT_MAX;
ulLeftToWrite -= ( ULONG ) uiToWrite;
}
else
{
uiToWrite = ( USHORT ) ulLeftToWrite;
ulLeftToWrite = 0;
}
uiWritten = write( hFileHandle, pPtr, uiToWrite );
/* -1 on bad hFileHandle
0 on disk full
*/
if( uiWritten == 0 )
break;
if( uiWritten == ( USHORT ) -1 )
{
uiWritten = 0;
break;
}
ulWritten += ( ULONG ) uiWritten;
pPtr += uiWritten;
}
hb_vmLock();
hb_fsSetIOError( ulLeftToWrite == 0, 0 );
}
#endif
else
{
hb_vmUnlock();
#if defined(HB_USE_LARGEFILE64)
hb_fsSetIOError( ftruncate64( hFileHandle, lseek64( hFileHandle, 0L, SEEK_CUR ) ) != -1, 0 );
#else
hb_fsSetIOError( ftruncate( hFileHandle, lseek( hFileHandle, 0L, SEEK_CUR ) ) != -1, 0 );
#endif
hb_vmLock();
ulWritten = 0;
}
#endif
#else
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return ulWritten;
}
HB_EXPORT void hb_fsCommit( HB_FHANDLE hFileHandle )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fsCommit(%p)", hFileHandle));
#if defined(HB_OS_WIN_32)
{
hb_vmUnlock();
#if defined(HB_WIN32_IO)
hb_fsSetIOError( FlushFileBuffers( ( HANDLE ) DosToWinHandle( hFileHandle ) ), 0 );
#else
#if defined(__WATCOMC__)
hb_fsSetIOError( fsync( hFileHandle ) == 0, 0 );
#else
hb_fsSetIOError( _commit( hFileHandle ) == 0, 0 );
#endif
#endif
hb_vmLock();
}
#elif defined(HB_OS_OS2)
{
hb_vmUnlock();
hb_fsSetIOError( DosResetBuffer( hFileHandle ) == 0, 0 );
hb_vmLock();
}
#elif defined(HB_OS_UNIX)
/* NOTE: close() functions releases all lock regardles if it is an
* original or duplicated file handle
*/
hb_vmUnlock();
#if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO + 0 > 0
/* faster - flushes data buffers only, without updating directory info
*/
hb_fsSetIOError( fdatasync( hFileHandle ) == 0, 0 );
#else
/* slower - flushes all file data buffers and i-node info
*/
hb_fsSetIOError( fsync( hFileHandle ) == 0, 0 );
#endif
hb_vmLock();
#elif defined(__WATCOMC__)
hb_vmUnlock();
hb_fsSetIOError( fsync( hFileHandle ) == 0, 0 );
hb_vmLock();
#elif defined(HB_FS_FILE_IO) && !defined(HB_OS_OS2) && !defined(HB_OS_UNIX)
/* This hack is very dangerous. POSIX standard define that if _ANY_
file handle is closed all locks set by the process on the file
pointed by this descriptor are removed. It doesn't matter they
were done using different descriptor. It means that we now clean
all locks on hFileHandle with the code below if the OS is POSIX
compilant. I vote to disable it.
*/
{
int dup_handle;
BOOL fResult = FALSE;
hb_vmUnlock();
dup_handle = dup( hFileHandle );
if( dup_handle != -1 )
{
close( dup_handle );
fResult = TRUE;
}
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
}
#else
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
}
HB_EXPORT BOOL hb_fsLock( HB_FHANDLE hFileHandle, ULONG ulStart,
ULONG ulLength, USHORT uiMode )
{
BOOL bResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsLock(%p, %lu, %lu, %hu)", hFileHandle, ulStart, ulLength, uiMode));
#if defined(HB_WIN32_IO)
hb_vmUnlock();
switch( uiMode & FL_MASK )
{
case FL_LOCK:
{
if( hb_iswinnt() )
{
OVERLAPPED sOlap ;
DWORD dwFlags ;
memset( &sOlap, 0, sizeof( OVERLAPPED ) ) ;
sOlap.Offset = ( ULONG ) ulStart ;
dwFlags = ( uiMode & FLX_SHARED ) ? 0 : LOCKFILE_EXCLUSIVE_LOCK ;
if( !s_fUseWaitLocks || !( uiMode & FLX_WAIT ) )
{
dwFlags |= LOCKFILE_FAIL_IMMEDIATELY ;
}
bResult = LockFileEx( DosToWinHandle( hFileHandle ), dwFlags, 0, ulLength, 0, &sOlap );
}
else
{
bResult = LockFile( DosToWinHandle( hFileHandle ), ulStart, 0, ulLength,0 );
}
break;
}
case FL_UNLOCK:
{
if( hb_iswinnt() )
{
OVERLAPPED sOlap ;
memset( &sOlap, 0, sizeof( OVERLAPPED ) ) ;
sOlap.Offset = ( ULONG ) ulStart ;
bResult = UnlockFileEx( DosToWinHandle( hFileHandle ), 0, ulLength,0, &sOlap );
}
else
{
bResult = UnlockFile( DosToWinHandle( hFileHandle ), ulStart, 0, ulLength,0 );
}
break;
}
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#elif defined(HB_OS_OS2)
{
struct _FILELOCK fl, ful;
hb_vmUnlock();
switch( uiMode & FL_MASK )
{
case FL_LOCK:
fl.lOffset = ulStart;
fl.lRange = ulLength;
ful.lOffset = 0;
ful.lRange = 0;
/* lock region, 2 seconds timeout, exclusive access - no atomic */
bResult = ( DosSetFileLocks( hFileHandle, &ful, &fl, 2000L, 0L ) == 0 );
break;
case FL_UNLOCK:
fl.lOffset = 0;
fl.lRange = 0;
ful.lOffset = ulStart;
ful.lRange = ulLength;
/* unlock region, 2 seconds timeout, exclusive access - no atomic */
bResult = ( DosSetFileLocks( hFileHandle, &ful, &fl, 2000L, 0L ) == 0 );
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
}
#elif defined(_MSC_VER) || defined(__DMC__)
{
ULONG ulOldPos;
hb_vmUnlock();
ulOldPos = lseek( hFileHandle, 0L, SEEK_CUR );
lseek( hFileHandle, ulStart, SEEK_SET );
switch( uiMode & FL_MASK )
{
case FL_LOCK:
bResult = ( locking( hFileHandle, _LK_NBLCK, ulLength ) == 0 );
break;
case FL_UNLOCK:
bResult = ( locking( hFileHandle, _LK_UNLCK, ulLength ) == 0 );
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
lseek( hFileHandle, ulOldPos, SEEK_SET );
}
#elif defined(__MINGW32__)
{
ULONG ulOldPos;
hb_vmUnlock();
ulOldPos = lseek( hFileHandle, 0L, SEEK_CUR );
lseek( hFileHandle, ulStart, SEEK_SET );
switch( uiMode & FL_MASK )
{
case FL_LOCK:
bResult = ( _locking( hFileHandle, _LK_LOCK, ulLength ) == 0 );
break;
case FL_UNLOCK:
bResult = ( _locking( hFileHandle, _LK_UNLCK, ulLength ) == 0 );
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
lseek( hFileHandle, ulOldPos, SEEK_SET );
}
#elif defined(HB_OS_UNIX)
{
/* TODO: check for append locks (SEEK_END)
*/
struct flock lock_info;
hb_vmUnlock();
switch( uiMode & FL_MASK )
{
case FL_LOCK:
lock_info.l_type = (uiMode & FLX_SHARED) ? F_RDLCK : F_WRLCK;
lock_info.l_start = ulStart;
lock_info.l_len = ulLength;
lock_info.l_whence = SEEK_SET; /* start from the beginning of the file */
lock_info.l_pid = getpid();
bResult = ( fcntl( hFileHandle,
(uiMode & FLX_WAIT) ? F_SETLKW: F_SETLK,
&lock_info ) >= 0 );
break;
case FL_UNLOCK:
lock_info.l_type = F_UNLCK; /* unlock */
lock_info.l_start = ulStart;
lock_info.l_len = ulLength;
lock_info.l_whence = SEEK_SET;
lock_info.l_pid = getpid();
bResult = ( fcntl( hFileHandle, F_SETLK, &lock_info ) >= 0 );
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
}
#elif defined(HAVE_POSIX_IO) && !defined(__IBMCPP__) && ( !defined(__GNUC__) || defined(__DJGPP__) )
hb_vmUnlock();
switch( uiMode & FL_MASK )
{
case FL_LOCK:
bResult = ( lock( hFileHandle, ulStart, ulLength ) == 0 );
break;
case FL_UNLOCK:
bResult = ( unlock( hFileHandle, ulStart, ulLength ) == 0 );
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return bResult;
}
HB_EXPORT BOOL hb_fsLockLarge( HB_FHANDLE hFileHandle, HB_FOFFSET ulStart,
HB_FOFFSET ulLength, USHORT uiMode )
{
BOOL bResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsLockLarge(%p, %" PFHL "u, %" PFHL "u, %hu)", hFileHandle, ulStart, ulLength, uiMode));
#if defined(HB_WIN32_IO)
{
DWORD dwOffsetLo = ( DWORD ) ( ulStart & 0xFFFFFFFF ),
dwOffsetHi = ( DWORD ) ( ulStart >> 32 ),
dwLengthLo = ( DWORD ) ( ulLength & 0xFFFFFFFF ),
dwLengthHi = ( DWORD ) ( ulLength >> 32 );
hb_vmUnlock();
switch( uiMode & FL_MASK )
{
case FL_LOCK:
if( hb_iswinnt() )
{
OVERLAPPED sOlap ;
DWORD dwFlags ;
dwFlags = ( ( uiMode & FLX_SHARED ) ? 0 : LOCKFILE_EXCLUSIVE_LOCK );
if( !s_fUseWaitLocks || !( uiMode & FLX_WAIT ) )
{
dwFlags |= LOCKFILE_FAIL_IMMEDIATELY ;
}
memset( &sOlap, 0, sizeof( OVERLAPPED ) );
sOlap.Offset = dwOffsetLo;
sOlap.OffsetHigh = dwOffsetHi;
bResult = LockFileEx( DosToWinHandle( hFileHandle ), dwFlags, 0,
dwLengthLo, dwLengthHi, &sOlap );
}
else
{
bResult = LockFile( DosToWinHandle( hFileHandle ),
dwOffsetLo, dwOffsetHi,
dwLengthLo, dwLengthHi );
}
break;
case FL_UNLOCK:
if( hb_iswinnt() )
{
OVERLAPPED sOlap ;
memset( &sOlap, 0, sizeof( OVERLAPPED ) );
sOlap.Offset = dwOffsetLo;
sOlap.OffsetHigh = dwOffsetHi;
bResult = UnlockFileEx( DosToWinHandle( hFileHandle ), 0,
dwLengthLo, dwLengthHi, &sOlap );
}
else
{
bResult = UnlockFile( DosToWinHandle( hFileHandle ),
dwOffsetLo, dwOffsetHi,
dwLengthLo, dwLengthHi );
}
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
}
#elif defined(HB_USE_LARGEFILE64)
{
struct flock64 lock_info;
hb_vmUnlock();
switch( uiMode & FL_MASK )
{
case FL_LOCK:
lock_info.l_type = (uiMode & FLX_SHARED) ? F_RDLCK : F_WRLCK;
lock_info.l_start = ulStart;
lock_info.l_len = ulLength;
lock_info.l_whence = SEEK_SET; /* start from the beginning of the file */
lock_info.l_pid = getpid();
bResult = ( fcntl( hFileHandle,
(uiMode & FLX_WAIT) ? F_SETLKW64: F_SETLK64,
&lock_info ) != -1 );
break;
case FL_UNLOCK:
lock_info.l_type = F_UNLCK; /* unlock */
lock_info.l_start = ulStart;
lock_info.l_len = ulLength;
lock_info.l_whence = SEEK_SET;
lock_info.l_pid = getpid();
bResult = ( fcntl( hFileHandle, F_SETLK64, &lock_info ) != -1 );
break;
default:
bResult = FALSE;
}
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
}
#else
bResult = hb_fsLock( hFileHandle, (ULONG) ulStart, (ULONG) ulLength, uiMode );
#endif
return bResult;
}
HB_EXPORT ULONG hb_fsSeek( HB_FHANDLE hFileHandle, LONG lOffset, USHORT uiFlags )
{
ULONG ulPos;
HB_TRACE(HB_TR_DEBUG, ("hb_fsSeek(%p, %ld, %hu)", hFileHandle, lOffset, uiFlags));
#if defined(HB_FS_FILE_IO)
{
USHORT Flags = convert_seek_flags( uiFlags );
hb_vmUnlock();
#if defined(HB_OS_OS2)
{
APIRET ret;
/* This DOS hack creates 2GB file size limit, Druzus */
if( lOffset < 0 && Flags == SEEK_SET )
{
ret = 1;
hb_fsSetError( 25 ); /* 'Seek Error' */
}
else
{
ret = DosSetFilePtr( hFileHandle, lOffset, Flags, &ulPos );
/* TODO: what we should do with this error code? Is it DOS compatible? */
hb_fsSetError( ( USHORT ) ret );
}
if( ret != 0 )
{
/* FIXME: it should work if DosSetFilePtr is lseek compatible
but maybe OS2 has DosGetFilePtr too, if not then remove this
comment, Druzus */
if( DosSetFilePtr( hFileHandle, 0, SEEK_CUR, &ulPos ) != 0 )
{
ulPos = 0;
}
}
}
#elif defined(HB_WIN32_IO)
/* This DOS hack creates 2GB file size limit, Druzus */
if( lOffset < 0 && Flags == SEEK_SET )
{
ulPos = (ULONG) INVALID_SET_FILE_POINTER;
hb_fsSetError( 25 ); /* 'Seek Error' */
}
else
{
ulPos = (DWORD) SetFilePointer( DosToWinHandle( hFileHandle ), lOffset, NULL, ( DWORD ) Flags );
hb_fsSetIOError( (DWORD) ulPos != INVALID_SET_FILE_POINTER, 0 );
}
if( (DWORD) ulPos == INVALID_SET_FILE_POINTER )
{
ulPos = (DWORD) SetFilePointer( DosToWinHandle( hFileHandle ), 0, NULL, SEEK_CUR );
}
#else
/* This DOS hack creates 2GB file size limit, Druzus */
if( lOffset < 0 && Flags == SEEK_SET )
{
ulPos = (ULONG) -1;
hb_fsSetError( 25 ); /* 'Seek Error' */
}
else
{
ulPos = lseek( hFileHandle, lOffset, Flags );
hb_fsSetIOError( ulPos != (ULONG) -1, 0 );
}
if( ulPos == (ULONG) -1 )
{
ulPos = lseek( hFileHandle, 0L, SEEK_CUR );
if( ulPos == (ULONG) -1 )
{
ulPos = 0;
}
}
#endif
hb_vmLock();
}
#else
hb_fsSetError( 25 );
ulPos = 0;
#endif
return ulPos;
}
HB_EXPORT HB_FOFFSET hb_fsSeekLarge( HB_FHANDLE hFileHandle, HB_FOFFSET llOffset, USHORT uiFlags )
{
HB_FOFFSET llPos;
HB_TRACE(HB_TR_DEBUG, ("hb_fsSeekLarge(%p, %" PFHL "u, %hu)", hFileHandle, llOffset, uiFlags));
#if defined(HB_WIN32_IO)
{
USHORT Flags = convert_seek_flags( uiFlags );
ULONG ulOffsetLow = ( ULONG ) ( llOffset & ULONG_MAX ),
ulOffsetHigh = ( ULONG ) ( llOffset >> 32 );
hb_vmUnlock();
if( llOffset < 0 && Flags == SEEK_SET )
{
llPos = ( HB_FOFFSET ) INVALID_SET_FILE_POINTER;
hb_fsSetError( 25 ); /* 'Seek Error' */
}
else
{
ulOffsetLow = SetFilePointer( DosToWinHandle( hFileHandle ),
ulOffsetLow, (PLONG) &ulOffsetHigh,
( DWORD ) Flags );
llPos = ( ( HB_FOFFSET ) ulOffsetHigh << 32 ) | ulOffsetLow;
hb_fsSetIOError( llPos != ( HB_FOFFSET ) INVALID_SET_FILE_POINTER, 0 );
}
if( llPos == ( HB_FOFFSET ) INVALID_SET_FILE_POINTER )
{
ulOffsetHigh = 0;
ulOffsetLow = SetFilePointer( DosToWinHandle( hFileHandle ),
0, (PLONG) &ulOffsetHigh, SEEK_CUR );
llPos = ( ( HB_FOFFSET ) ulOffsetHigh << 32 ) | ulOffsetLow;
}
hb_vmLock();
}
#elif defined(HB_USE_LARGEFILE64)
{
USHORT Flags = convert_seek_flags( uiFlags );
hb_vmUnlock();
if( llOffset < 0 && Flags == SEEK_SET )
{
llPos = (HB_FOFFSET) -1;
hb_fsSetError( 25 ); /* 'Seek Error' */
}
else
{
llPos = lseek64( hFileHandle, llOffset, Flags );
hb_fsSetIOError( llPos != (HB_FOFFSET) -1, 0 );
}
if( llPos == (HB_FOFFSET) -1 )
{
llPos = lseek64( hFileHandle, 0L, SEEK_CUR );
}
hb_vmLock();
}
#else
llPos = (HB_FOFFSET) hb_fsSeek( hFileHandle, (LONG) llOffset, uiFlags );
#endif
return llPos;
}
HB_EXPORT ULONG hb_fsTell( HB_FHANDLE hFileHandle )
{
HB_TRACE(HB_TR_DEBUG, ("hb_fsTell(%p)", hFileHandle));
return hb_fsSeek( hFileHandle, 0, FS_RELATIVE );
}
HB_EXPORT BOOL hb_fsDelete( BYTE * pFilename )
{
BOOL bResult;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsDelete(%s)", (char*) pFilename));
pFilename = hb_fsNameConv( pFilename, &fFree );
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
bResult = DeleteFileA( ( char * ) pFilename );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#elif defined(HB_FS_FILE_IO)
hb_vmUnlock();
bResult = ( remove( ( char * ) pFilename ) == 0 );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pFilename );
return bResult;
}
HB_EXPORT BOOL hb_fsRename( BYTE * pOldName, BYTE * pNewName )
{
BOOL bResult;
BOOL fFreeOld, fFreeNew;
HB_TRACE(HB_TR_DEBUG, ("hb_fsRename(%s, %s)", (char*) pOldName, (char*) pNewName));
pOldName = hb_fsNameConv( pOldName, &fFreeOld );
pNewName = hb_fsNameConv( pNewName, &fFreeNew );
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
bResult = MoveFileA( ( char * ) pOldName, ( char * ) pNewName );
hb_fsSetIOError( bResult, 0 );
hb_vmLock();
#elif defined(HB_FS_FILE_IO)
hb_vmUnlock();
bResult = ( rename( ( char * ) pOldName, ( char * ) pNewName ) == 0 );
hb_fsSetIOError( bResult, 0 );
hb_vmLock();
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFreeOld )
hb_xfree( pOldName );
if( fFreeNew )
hb_xfree( pNewName );
return bResult;
}
HB_EXPORT BOOL hb_fsMkDir( BYTE * pDirname )
{
BOOL bResult;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsMkDir(%s)", (char*) pDirname));
pDirname = hb_fsNameConv( pDirname, &fFree );
HB_TRACE(HB_TR_DEBUG, ("hb_fsMkDir(%s)", (char*) pDirname));
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
bResult = CreateDirectoryA( ( char * ) pDirname, NULL );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#elif defined(HAVE_POSIX_IO) || defined(__MINGW32__)
hb_vmUnlock();
# if ! defined(HB_OS_UNIX) && \
( defined(__WATCOMC__) || defined(__BORLANDC__) || \
defined(__IBMCPP__) || defined(__MINGW32__) )
bResult = ( mkdir( ( char * ) pDirname ) == 0 );
# else
bResult = ( mkdir( ( char * ) pDirname, S_IRWXU | S_IRWXG | S_IRWXO ) == 0 );
# endif
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pDirname );
return bResult;
}
HB_EXPORT BOOL hb_fsChDir( BYTE * pDirname )
{
BOOL bResult;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsChDir(%s)", (char*) pDirname));
pDirname = hb_fsNameConv( pDirname, &fFree );
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
bResult = SetCurrentDirectoryA( ( char * ) pDirname );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#elif defined(HAVE_POSIX_IO) || defined(__MINGW32__)
hb_vmUnlock();
bResult = ( chdir( ( char * ) pDirname ) == 0 );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pDirname );
return bResult;
}
HB_EXPORT BOOL hb_fsRmDir( BYTE * pDirname )
{
BOOL bResult;
BOOL fFree;
HB_TRACE(HB_TR_DEBUG, ("hb_fsRmDir(%s)", (char*) pDirname));
pDirname = hb_fsNameConv( pDirname, &fFree );
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
bResult = RemoveDirectoryA( ( char * ) pDirname );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#elif defined(HAVE_POSIX_IO) || defined(__MINGW32__)
hb_vmUnlock();
bResult = ( rmdir( ( char * ) pDirname ) == 0 );
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
if( fFree )
hb_xfree( pDirname );
return bResult;
}
/* NOTE: This is not thread safe function, it's there for compatibility. */
/* NOTE: 0 = current drive, 1 = A, 2 = B, 3 = C, etc. */
HB_EXPORT BYTE * hb_fsCurDir( USHORT uiDrive )
{
BYTE * pbyDirBuffer;
HB_TRACE(HB_TR_DEBUG, ("hb_fsCurDir(%hu)", uiDrive));
pbyDirBuffer = hb_stackDirBuffer();
hb_fsCurDirBuff( uiDrive, pbyDirBuffer, _POSIX_PATH_MAX + 1 );
return ( BYTE * ) pbyDirBuffer;
}
/* NOTE: Thread safe version of hb_fsCurDir() */
/* NOTE: 0 = current drive, 1 = A, 2 = B, 3 = C, etc. */
HB_EXPORT USHORT hb_fsCurDirBuff( USHORT uiDrive, BYTE * pbyBuffer, ULONG ulLen )
{
USHORT uiCurDrv = uiDrive, usError;
BOOL fResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsCurDirBuff(%hu)", uiDrive));
pbyBuffer[ 0 ] = '\0';
/*
* do not cover this code by HB_OS_HAS_DRIVE_LETTER macro
* It will allow us to add drive emulation in hb_fsCurDrv()/hb_fsChDrv()
* and hb_fsNameConv()
*/
#if !defined(HB_OS_OS2) && !defined(__MINGW32__)
if( uiDrive )
{
uiCurDrv = hb_fsCurDrv() + 1;
if( uiDrive != uiCurDrv )
hb_fsChDrv( ( BYTE ) ( uiDrive - 1 ) );
}
#endif
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
fResult = GetCurrentDirectoryA( ulLen, ( char * ) pbyBuffer );
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
#elif defined(HB_OS_OS2)
hb_vmUnlock();
fResult = ( _getcwd1( (char *) pbyBuffer, uiDrive + 'A' - 1 ) == 0 );
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
#elif defined(HAVE_POSIX_IO)
hb_vmUnlock();
fResult = ( getcwd( ( char * ) pbyBuffer, ulLen ) != NULL );
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
#elif defined(__MINGW32__)
hb_vmUnlock();
fResult = ( _getdcwd( uiDrive, pbyBuffer, ulLen ) != NULL );
hb_vmLock();
hb_fsSetIOError( fResult, 0 );
#else
fResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
usError = hb_fsError();
if( uiDrive != uiCurDrv )
{
hb_fsChDrv( ( BYTE ) ( uiCurDrv - 1 ) );
hb_fsSetError( usError );
}
pbyBuffer[ ulLen - 1 ] = '\0';
if( usError == 0 && pbyBuffer[ 0 ] )
{
BYTE * pbyStart = pbyBuffer;
/* Strip the leading drive spec, and leading backslash if there's one. */
/* NOTE: A trailing underscore is not returned on this platform,
so we don't need to strip it. [vszakats] */
ulLen = strlen( ( char * ) pbyBuffer );
#if defined(HB_OS_HAS_DRIVE_LETTER)
if( pbyStart[ 1 ] == HB_OS_DRIVE_DELIM_CHR )
{
pbyStart += 2;
ulLen -= 2;
}
#endif
if( strchr( HB_OS_PATH_DELIM_CHR_LIST, pbyStart[ 0 ] ) )
{
pbyStart++;
ulLen--;
}
/* Strip the trailing (back)slash if there's one */
if( ulLen && strchr( HB_OS_PATH_DELIM_CHR_LIST, pbyStart[ ulLen - 1 ] ) )
ulLen--;
if( ulLen && pbyBuffer != pbyStart )
memmove( pbyBuffer, pbyStart, ulLen );
pbyBuffer[ ulLen ] = '\0';
}
return usError;
}
/* NOTE: 0=A:, 1=B:, 2=C:, 3=D:, ... */
HB_EXPORT USHORT hb_fsChDrv( BYTE nDrive )
{
USHORT uiResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsChDrv(%d)", (int) nDrive));
#if defined(HB_OS_HAS_DRIVE_LETTER)
{
/* 'unsigned int' _have to_ be used in Watcom */
UINT uiSave, uiNewDrive;
hb_vmUnlock();
HB_FS_GETDRIVE( uiSave );
HB_FS_SETDRIVE( nDrive );
HB_FS_GETDRIVE( uiNewDrive );
if( ( UINT ) nDrive == uiNewDrive )
{
uiResult = 0;
hb_fsSetError( 0 );
}
else
{
HB_FS_SETDRIVE( uiSave );
uiResult = ( USHORT ) FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
}
hb_vmLock();
}
#else
HB_SYMBOL_UNUSED( nDrive );
uiResult = ( USHORT ) FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return uiResult;
}
/* NOTE: 0=A:, 1=B:, 2=C:, 3=D:, ... */
/* TOFIX: This isn't fully compliant because CA-Cl*pper doesn't access
the drive before checking. hb_fsIsDrv only returns TRUE
if there is a disk in the drive. */
HB_EXPORT USHORT hb_fsIsDrv( BYTE nDrive )
{
USHORT uiResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsIsDrv(%d)", (int) nDrive));
#if defined(HB_OS_WIN_32) && !defined(HB_WINCE)
{
char buffer[ 4 ];
UINT type;
buffer[ 0 ] = nDrive + 'A';
buffer[ 1 ] = ':';
buffer[ 2 ] = '\\';
buffer[ 3 ] = '\0';
hb_vmUnlock();
type = GetDriveTypeA( ( LPCSTR ) buffer );
hb_vmLock();
uiResult = ( type == DRIVE_UNKNOWN || type == DRIVE_NO_ROOT_DIR ) ? F_ERROR : 0;
hb_fsSetError( 0 );
}
#elif defined(HB_OS_HAS_DRIVE_LETTER)
{
/* 'unsigned int' _have to_ be used in Watcom
*/
UINT uiSave, uiNewDrive;
hb_vmUnlock();
HB_FS_GETDRIVE( uiSave );
HB_FS_SETDRIVE( nDrive );
HB_FS_GETDRIVE( uiNewDrive );
if( ( UINT ) nDrive != uiNewDrive )
{
uiResult = ( USHORT ) FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
}
else
{
uiResult = 0;
hb_fsSetError( 0 );
}
HB_FS_SETDRIVE( uiSave );
hb_vmLock();
}
#else
HB_SYMBOL_UNUSED( nDrive );
uiResult = ( USHORT ) FS_ERROR;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return uiResult;
}
HB_EXPORT BOOL hb_fsIsDevice( HB_FHANDLE hFileHandle )
{
BOOL bResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsIsDevice(%p)", hFileHandle));
#if defined(HB_OS_WIN_32)
hb_vmUnlock();
bResult = GetFileType( DosToWinHandle( hFileHandle ) ) == FILE_TYPE_CHAR;
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#elif defined(HB_FS_FILE_IO)
hb_vmUnlock();
#if defined( _MSC_VER ) || defined( __MINGW32__ )
bResult = _isatty( hFileHandle ) != 0;
#else
bResult = isatty( hFileHandle ) != 0;
#endif
hb_vmLock();
hb_fsSetIOError( bResult, 0 );
#else
bResult = FALSE;
hb_fsSetError( ( USHORT ) FS_ERROR );
HB_SYMBOL_UNUSED( hFileHandle );
#endif
return bResult;
}
/* NOTE: 0=A:, 1=B:, 2=C:, 3=D:, ... */
HB_EXPORT BYTE hb_fsCurDrv( void )
{
UINT uiResult;
HB_TRACE(HB_TR_DEBUG, ("hb_fsCurDrv()"));
#if defined(HB_OS_HAS_DRIVE_LETTER)
hb_vmUnlock();
HB_FS_GETDRIVE( uiResult );
hb_vmLock();
#else
uiResult = 0;
hb_fsSetError( ( USHORT ) FS_ERROR );
#endif
return ( BYTE ) uiResult; /* Return the drive number, base 0. */
}
/* copied from xHarbour */
HB_EXPORT HB_FHANDLE hb_fsExtOpen( BYTE * pFilename, BYTE * pDefExt,
USHORT uiExFlags, BYTE * pPaths,
PHB_ITEM pError )
{
HB_PATHNAMES * pSearchPath = NULL, * pNextPath;
PHB_FNAME pFilepath;
HB_FHANDLE hFile;
BOOL fIsFile = FALSE;
BYTE * szPath;
USHORT uiFlags;
HB_TRACE(HB_TR_DEBUG, ("hb_fsExtOpen(%s, %s, %hu, %p, %p)", pFilename, pDefExt, uiExFlags, pPaths, pError));
#if 0
#define FXO_TRUNCATE 0x0100 /* Create (truncate if exists) */
#define FXO_APPEND 0x0200 /* Create (append if exists) */
#define FXO_UNIQUE 0x0400 /* Create unique file FO_EXCL ??? */
#define FXO_FORCEEXT 0x0800 /* Force default extension */
#define FXO_DEFAULTS 0x1000 /* Use SET command defaults */
#define FXO_DEVICERAW 0x2000 /* Open devices in raw mode */
/* xHarbour extension */
#define FXO_SHARELOCK 0x4000 /* emulate DOS SH_DENY* mode in POSIX OS */
#define FXO_COPYNAME 0x8000 /* copy final szPath into pFilename */
hb_errGetFileName( pError );
#endif
szPath = ( BYTE * ) hb_xgrab( _POSIX_PATH_MAX + 1 );
uiFlags = uiExFlags & 0xff;
if( uiExFlags & ( FXO_TRUNCATE | FXO_APPEND | FXO_UNIQUE ) )
{
uiFlags |= FO_CREAT;
if( uiExFlags & FXO_UNIQUE )
uiFlags |= FO_EXCL;
#if !defined( HB_USE_SHARELOCKS )
else if( uiExFlags & FXO_TRUNCATE )
uiFlags |= FO_TRUNC;
#endif
}
pFilepath = hb_fsFNameSplit( ( char * ) pFilename );
if( pDefExt && ( ( uiExFlags & FXO_FORCEEXT ) || !pFilepath->szExtension ) )
{
pFilepath->szExtension = ( char * ) pDefExt;
}
if( pFilepath->szPath )
{
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
}
else if( uiExFlags & FXO_DEFAULTS )
{
char * szDefault = hb_setGetDefault();
if( szDefault )
{
pFilepath->szPath = szDefault;
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
fIsFile = hb_fsFile( szPath );
}
if( !fIsFile && hb_setGetPath() )
{
pNextPath = hb_setGetFirstSetPath();
while( !fIsFile && pNextPath )
{
pFilepath->szPath = pNextPath->szPath;
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
fIsFile = hb_fsFile( szPath );
pNextPath = pNextPath->pNext;
}
}
if( !fIsFile )
{
pFilepath->szPath = szDefault ? szDefault : NULL;
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
}
}
else if( pPaths && *pPaths )
{
hb_fsAddSearchPath( ( char * ) pPaths, &pSearchPath );
pNextPath = pSearchPath;
while( !fIsFile && pNextPath )
{
pFilepath->szPath = pNextPath->szPath;
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
fIsFile = hb_fsFile( szPath );
pNextPath = pNextPath->pNext;
}
hb_fsFreeSearchPath( pSearchPath );
if( !fIsFile )
{
pFilepath->szPath = NULL;
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
}
}
else
{
hb_fsFNameMerge( ( char * ) szPath, pFilepath );
}
hb_xfree( pFilepath );
hFile = hb_fsOpen( szPath, uiFlags );
#if defined( HB_USE_SHARELOCKS )
if( hFile != FS_ERROR && uiExFlags & FXO_SHARELOCK )
{
#if defined( HB_USE_BSDLOCKS )
int iLock;
if( ( uiFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) ) == FO_READ ||
( uiFlags & ( FO_DENYREAD | FO_DENYWRITE | FO_EXCLUSIVE ) ) == 0 )
iLock = LOCK_SH | LOCK_NB;
else
iLock = LOCK_EX | LOCK_NB;
hb_vmUnlock();
iLock = flock( hFile, iLock );
hb_vmLock();
if( iLock != 0 )
#else
USHORT uiLock;
if( ( uiFlags & ( FO_READ | FO_WRITE | FO_READWRITE ) ) == FO_READ ||
( uiFlags & ( FO_DENYREAD | FO_DENYWRITE | FO_EXCLUSIVE ) ) == 0 )
uiLock = FL_LOCK | FLX_SHARED;
else
uiLock = FL_LOCK | FLX_EXCLUSIVE;
if( !hb_fsLockLarge( hFile, HB_SHARELOCK_POS, HB_SHARELOCK_SIZE, uiLock ) )
#endif
{
hb_fsClose( hFile );
hFile = FS_ERROR;
/*
* fix for neterr() support and Clipper compatibility,
* should be revised with a better multi platform solution.
*/
hb_fsSetError( ( uiExFlags & FXO_TRUNCATE ) ? 5 : 32 );
}
else if( uiExFlags & FXO_TRUNCATE )
{
/* truncate the file only if properly locked */
hb_fsSeek( hFile, 0, FS_SET );
hb_fsWrite( hFile, NULL, 0 );
if( hb_fsError() != 0 )
{
hb_fsClose( hFile );
hFile = FS_ERROR;
hb_fsSetError( 5 );
}
}
}
#elif 1
/*
* Temporary fix for neterr() support and Clipper compatibility,
* should be revised with a better solution.
*/
if( ( uiExFlags & ( FXO_TRUNCATE | FXO_APPEND | FXO_UNIQUE ) ) == 0 &&
hb_fsError() == 5 )
{
hb_fsSetError( 32 );
}
#endif
if( pError )
{
hb_errPutFileName( pError, ( char * ) szPath );
if( hFile == FS_ERROR )
{
hb_errPutOsCode( pError, hb_fsError() );
hb_errPutGenCode( pError, ( USHORT ) ( ( uiExFlags & FXO_TRUNCATE ) ? EG_CREATE : EG_OPEN ) );
}
}
if( uiExFlags & FXO_COPYNAME && hFile != FS_ERROR )
hb_strncpy( ( char * ) pFilename, ( char * ) szPath, _POSIX_PATH_MAX );
hb_xfree( szPath );
return hFile;
}
HB_EXPORT BOOL hb_fsEof( HB_FHANDLE hFileHandle )
{
BOOL fResult;
hb_vmUnlock();
#if defined(__DJGPP__) || defined(__CYGWIN__) || \
defined(HB_WIN32_IO) || defined(HB_WINCE) || \
defined(HB_OS_UNIX_COMPATIBLE)
{
HB_FOFFSET curPos;
HB_FOFFSET endPos;
HB_FOFFSET newPos;
curPos = hb_fsSeekLarge( hFileHandle, 0L, SEEK_CUR );
if( curPos != -1 )
{
endPos = hb_fsSeekLarge( hFileHandle, 0L, SEEK_END );
newPos = hb_fsSeekLarge( hFileHandle, curPos, SEEK_SET );
fResult = ( endPos != -1 && newPos == curPos );
}
else
{
endPos = -1;
fResult = FALSE;
}
hb_fsSetIOError( fResult, 0 );
fResult = !fResult || curPos == endPos;
}
#else
fResult = eof( hFileHandle ) != 0;
#endif
hb_vmLock();
return fResult;
}
HB_EXPORT BYTE * hb_fsNameConv( BYTE * szFileName, BOOL * pfFree )
{
int iFileCase, iDirCase;
char cDirSep;
BOOL fTrim;
/*
Convert file and dir case. The allowed SET options are:
LOWER - Convert all caracters of file to lower
UPPER - Convert all caracters of file to upper
MIXED - Leave as is
The allowed environment options are:
FILECASE - define the case of file
DIRCASE - define the case of path
DIRSEPARATOR - define separator of path (Ex. "/")
TRIMFILENAME - strip trailing and leading spaces (also from extension)
*/
fTrim = hb_setGetTrimFileName();
cDirSep = hb_setGetDirSeparator();
iFileCase = hb_setGetFileCase();
iDirCase = hb_setGetDirCase();
if( fTrim || cDirSep != HB_OS_PATH_DELIM_CHR ||
iFileCase != HB_SET_CASE_MIXED || iDirCase != HB_SET_CASE_MIXED )
{
PHB_FNAME pFileName;
ULONG ulLen;
if( pfFree )
{
BYTE * szNew = ( BYTE * ) hb_xgrab( _POSIX_PATH_MAX + 1 );
hb_strncpy( ( char * ) szNew, ( char * ) szFileName, _POSIX_PATH_MAX );
szFileName = szNew;
*pfFree = TRUE;
}
if( cDirSep != HB_OS_PATH_DELIM_CHR )
{
BYTE *p = szFileName;
while( *p )
{
if( *p == cDirSep )
*p = HB_OS_PATH_DELIM_CHR;
p++;
}
}
pFileName = hb_fsFNameSplit( ( char * ) szFileName );
/* strip trailing and leading spaces */
if( fTrim )
{
if( pFileName->szName )
{
ulLen = strlen( pFileName->szName );
ulLen = hb_strRTrimLen( pFileName->szName, ulLen, FALSE );
pFileName->szName = hb_strLTrim( pFileName->szName, &ulLen );
pFileName->szName[ulLen] = '\0';
}
if( pFileName->szExtension )
{
ulLen = strlen( pFileName->szExtension );
ulLen = hb_strRTrimLen( pFileName->szExtension, ulLen, FALSE );
pFileName->szExtension = hb_strLTrim( pFileName->szExtension, &ulLen );
pFileName->szExtension[ulLen] = '\0';
}
}
/* FILECASE */
if( iFileCase == HB_SET_CASE_LOWER )
{
if( pFileName->szName )
hb_strLower( pFileName->szName, strlen( pFileName->szName ) );
if( pFileName->szExtension )
hb_strLower( pFileName->szExtension, strlen( pFileName->szExtension ) );
}
else if( iFileCase == HB_SET_CASE_UPPER )
{
if( pFileName->szName )
hb_strUpper( pFileName->szName, strlen( pFileName->szName ) );
if( pFileName->szExtension )
hb_strUpper( pFileName->szExtension, strlen( pFileName->szExtension ) );
}
/* DIRCASE */
if( pFileName->szPath )
{
if( iDirCase == HB_SET_CASE_LOWER )
hb_strLower( pFileName->szPath, strlen( pFileName->szPath ) );
else if( iDirCase == HB_SET_CASE_UPPER )
hb_strUpper( pFileName->szPath, strlen( pFileName->szPath ) );
}
hb_fsFNameMerge( ( char * ) szFileName, pFileName );
hb_xfree( pFileName );
}
else if( pfFree )
*pfFree = FALSE;
return szFileName;
}
#ifdef HB_LEGACY_LEVEL
HB_EXPORT BYTE * hb_fileNameConv( char * szFileName )
{
BOOL fFree;
BYTE * szNew;
szNew = hb_fsNameConv( ( BYTE * ) szFileName, &fFree );
if( fFree )
{
hb_strncpy( szFileName, ( char * ) szNew, strlen( szFileName ) );
hb_xfree( szNew );
}
return ( BYTE * ) szFileName;
}
#endif
HB_EXPORT BOOL hb_fsDisableWaitLocks( int iSet )
{
BOOL fRetVal = s_fUseWaitLocks;
if( iSet >= 0 )
{
s_fUseWaitLocks = ( iSet == 0 );
}
return fRetVal;
}
HB_FUNC( HB_DISABLEWAITLOCKS )
{
hb_retl( hb_fsDisableWaitLocks( ISLOG( 1 ) ? ( hb_parl( 1 ) ? 1 : 0 ) : -1 ) );
}
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