* harbour/source/vm/codebloc.c
* updated old and not longer valid comment
* harbour/source/vm/memvars.c
* minor code formatting
* harbour/source/common/expropt2.c
! fixed bug in power math expression optimization caused
by two lines left in the code by mistake. Many thanks to
Maurilio for locating the problem.
* harbour/include/hbstack.h
* harbour/source/vm/estack.c
* harbour/source/vm/hvm.c
% added support for buffering hb_stack TLS access be preloading
the stack pointer into C stack function local variables.
Please make speed tests for MT mode with different C compilers
and different platforms.
* harbour/ChangeLog
! corrected previous ChangeLog entry: instead of hb_waDetach()/
hb_waRequest() should be db_dbDetach()/hb_dbRequest()
* harbour/source/vm/hvm.c
* disabled PRG tracing in default builds. If someone wants to
use this feature then he should recompile Harbour with HB_PRG_TRACE
macro. In such case tracing can be enabled/disabled by __TRACEPRGCALLS()
function. HB_NO_TRACE macro is not longer usable - it's default in
current code.
* harbour/source/vm/classes.c
+ added PRG function __clsPreallocate() which extends the size of
classes buffer to given value to avoid later RT reallocations.
It may be useful in some very seldom cases for MT programs which
will allocate dynamically at runtime more then 16386 classes.
In practice rather impossible though who knows ;-)
* harbour/source/rdd/workarea.c
* set default preallocation size for RDD nodes to 128
+ added PRG function __rddPreallocate() which extends the size of
RDD nodes buffer to given value to avoid later RT reallocations.
It may be useful in some very seldom cases for MT programs which
will register dynamically at runtime more then 128 RDDs when other
threads are active and may use RDD nodes.
* harbour/include/hbrddcdx.h
* harbour/source/rdd/dbfcdx/dbfcdx1.c
+ added ORDLSTDELETE() method.
Now ordbagClear() should work for DBFCDX.
* harbour/include/hbvm.h
* harbour/source/vm/hvm.c
* harbour/source/vm/thread.c
+ added .prg function hb_threadSelf() -> <pThID> | NIL
It returns thread ID pointer variable or NIL when thread was
registered without it (main thread and some 3-rd party threads
created by C API)
* harbour/source/vm/hvm.c
* protect s_InitFunctions and s_ExitFunctions by mutex
* harbour/source/common/hbverdsp.c
* use hb_verBuildDate() instead of __DATE__ and __TIME__ in
hb_verBuildInfo() function to report the same time in both
cases.
* harbour/include/hbapi.h
* harbour/source/vm/arrays.c
+ added hb_arrayGetPtrGC(), hb_arrayGetSymbol(), hb_arraySetSymbol()
* harbour/include/hbapi.h
* harbour/source/vm/dynsym.c
+ added hb_dynsymProtectEval(). Works like hb_dynsymEval() but
keeps dynamic symbol table locked during whole execution.
It's faster then hb_dynsymEval() but user function may not
access dynamic symbol tbale to not cause recursive locks
+ added protection against possible dynamic symbol table resizing
during hb_dynsymEval() by other threads.
* harbour/include/hbapi.h
* harbour/source/vm/memvars.c
+ added hb_memvarSaveInArray( int iScope, BOOL fCopy ) and
hb_memvarRestoreFromArray( PHB_ITEM pArray )
% use hb_dynsymProtectEval() in places where it's safe
* harbour/include/Makefile
+ harbour/include/hbthread.ch
+ added header file with thread constant definitions:
HB_THREAD_INHERIT_PUBLIC
HB_THREAD_INHERIT_PRIVATE
HB_THREAD_INHERIT_MEMVARS
HB_THREAD_MEMVARS_COPY
* harbour/include/hbthread.h
* harbour/source/vm/hvm.c
* harbour/source/vm/thread.c
+ added support for inheriting visible memvars from current
thread when new thread is created. Memvars in child thread
can be shared with parrent or they can be copied. See HB_THREAD_*
attributes defined in hbthread.ch, f.e.:
hb_threadStart( HB_THREAD_INHERIT_PUBLIC, @thFunc() )
or:
hb_threadStart( HB_BITOR( HB_THREAD_INHERIT_MEMVARS + ;
HB_THREAD_MEMVARS_COPY ), ;
@thFunc() )
Please note that when child thread creates new PUBLIC variable
which didn't existed when thread was started then it's visible
only for this thread and optionally for its child threads but
not for parent thread.
Please also remember that write access to shared memvars have
to be protected by users.
+ harbour/tests/mt/mttest08.prg
+ added test code for thread memvars inheritance
* harbour/bin/pack_src.sh
* added file list to archive so it's possible to recreate it later without SVN data
* harbour/common.mak
* harbour/make_b32.mak
* harbour/make_gcc.mak
+ added HBVMMT library for default builds
BCC version not tested - please test.
* harbour/source/vm/hvm.c
* moved language and code page setting before class and error initialization
* harbour/source/rtl/fserror.c
* harbour/source/rtl/fstemp.c
* harbour/source/rtl/fssize.c
* harbour/source/rtl/hbffind.c
* harbour/source/rtl/filesys.c
! fixed overloading FS error codes by other operations, f.e. accessing
TLS data by OS API function call
* harbour/include/hbsetup.h
* accept both settings: HB_FM_STATISTICS and HB_FM_STATISTICS_OFF
without errors
* harbour/bin/postinst.sh
* added small trick to make HBFM lib compilation not dependent on
default HB_FM_STATISTIC settings
* harbour/include/hbvm.h
* harbour/source/vm/hvm.c
+ added C function hb_vmIsMt()
* harbour/source/vm/cmdarg.c
* report MT HVM status when program is executed with //INFO
parameter
* harbour/source/vm/fm.c
! fixed memory statistic MT protection in hb_xrealloc() operation
* harbour/config/w32/owatcom.cf
* use echo instead of echo. for non empty output.
* harbour/include/hbextern.ch
* harbour/source/vm/thread.c
+ added .prg function hb_threadTerminateAll() - it sends QUIT request
to each HVM thread and waits for their termination. Can be executed
only by main HVM thread.
* 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.
* doc/whatsnew.txt
+ Updated.
* contrib/Makefile
* contrib/make_b32_all.bat
* contrib/make_gcc_all.sh
* contrib/make_vc_all.bat
- contrib/hbwhat32
+ contrib/hbwhat
* Renamed to not contain '32'.
; NOTE: I plan to do this with a couple of other
names too in the future.
* contrib/hbwhat/Makefile
* contrib/hbwhat/common.mak
- contrib/hbwhat/what32.ch
+ contrib/hbwhat/hbwhat.ch
* Renamed what32.ch to not contain '32' (and added
hb for consistency if it got renamed anyway).
* utils/hbmake/hbmake.prg
* Updated by Bill Robertson to fix too many things to
mention here. (cleaned up lots of stuff, using hb_run()s
return values, cleaned to not call main() function
recursively (!), display output cleanups, etcetc)
* hbwhat32, hbziparch lib name changes.
* contrib/examples/pp/hbppcore.c
* contrib/examples/pp/hbppcomp.c
* contrib/rddads/ads1.c
* source/pp/ppcore.c
* source/vm/asort.c
* source/vm/hvm.c
* source/rtl/disksphb.c
* source/rdd/dbfntx/dbfntx1.c
* source/rdd/workarea.c
* contrib/hbct/screen2.c
* contrib/hbct/token2.c
* while( TRUE ) -> for( ;; )
* do {} while( TRUE ) -> for( ;; ) {}
; To avoid warnings about conditions being constant.
* source/rtl/gtchrmap.c
* source/rtl/hbgtcore.c
* source/vm/hvm.c
+ Added three TOFIXes regarding namespace violations.
s_pszLinkedMain -> hb_vm_pszLinkedMain
s_defaultGT -> hb_gt_szNameDefault
s_szDefaultCharMapFile -> hb_gt_szCharMapFileDefault
TOFIX: These should be fixed in 1.1 (or maybe even in
1.0.1 if this isn't such a big problem for 3rd
parties).
* harbour/source/vm/macro.c
* harbour/source/vm/hvm.c
! fixed _FIELD indirectly used as alias, f.e.:
? ("_FIELD")->NAME
or:
M->var := "_FIELD"
? ("&var")->NAME
* harbour/include/hbclass.ch
* harbour/include/common.ch
* use a little bit simpler form for HB_SYMBOL_UNUSED()
* harbour/contrib/hbw32/w32_ole.c
* harbour/contrib/hbole/ole2.c
! fixed numeric to pointer casting
* accept both pointer and numeric values as window handle
for easier code migration
* common.mak
* source/vm/debug.c
* source/vm/hvm.c
* source/vm/Makefile
+ source/vm/debugold.c
+ Added some HB_DBG_*() functions for compatibility
with certain 3rd party libs. They are marked with
HB_LEGACY_LEVEL, and will be removed (pbly at 1.1.0),
so everyone is encouraged to use __DBG*() version
for Harbour versions above 0x010000 (or not use
them at all, if this is possible). If these functions
are indeed needed for some functionality, it'd be
good to hear about it, maybe there is a solution
which doesn't require internals.
* utils/hbdoc/ft_funcs.prg
* utils/hbmake/ft_funcs.prg
* Using FS_* manifest constants.
* doc/whatsnew.txt
* Extended releases notes/issues section.
* config/w32/dm.cf
! Fixed to exclude "possible extraneous ';'" warnings
for every for()/while()/etc constructs with an empty body.
! Further fixes to link/lib rules.
; TOFIX1: odbc.c, gtwvg.c still don't compile.
; TOFIX2: Harbour executables won't run, by simply doing nothing.
* source/rtl/gtwvt/gtwvt.c
! Fixed to compile with __DMC__.
; NOTE: Przemek, could you please check these?
* include/hbsetup.h
! snprintf() for __DMC__.
* contrib/hbw32/dllcall.c
! Fixed casting for __DMC__.
* contrib/hbsqlit3/hbsqlit3.c
! Workaround for Pelles C 4.5 and Open Watcom, so that
sqlite3.c won't be included for these compilers.
Pelles C 4.5 crashes, Open Watcom 1.7 goes into an
infinite loop on this huge file. For thes compilers
the sqlite3 library should be supplied by the users.
* contrib/hbapollo/apollo.c
! Fixed to compile with Open Watcom.
* source/vm/mainwin.c
* source/vm/hvm.c
! Fix for __DMC__ startup problem:
'OPTLINK : Warning 134: No Start Address'
* harbour/bin/hb-func.sh
* harbour/source/vm/hvm.c
* harbour/source/rtl/hbgtcore.c
* added const to s_defaultGT and s_pszLinkedMain declarations
* make s_pszLinkedMain visible and functional for platforms
which does not use HARBOUR_START_PROCEDURE
* harbour/source/vm/extrap.c
+ added exception trap for SIGSEGV, SIGILL, SIGFPE and SIGBUS
for *nixes which support sigaltstack()
* harbour/include/hbwmain.c
* harbour/source/vm/mainwin.c
* use of WinMain() from hbwmain.c
* harbour/source/pp/pplib.c
* ignore all #pragma directives setting compiler switches instead
of generating RT error when user uses PP in .prg code by __PP_*()
functions
* harbour/source/Makefile
+ harbour/source/hbextern
+ harbour/source/hbextern/hbextern.prg
+ harbour/source/hbextern/Makefile
* harbour/common.mak
* harbour/make_b32.mak
* harbour/make_gcc.mak
* harbour/make_vc.mak
* harbour/make_vcce.mak
* harbour/bin/hb-func.sh
+ added hbextern library
+ added hbextern to harbour shared library. Now all functions
are registered and visible for dynamically linked applications
not only .prg ones and .c functions explicitly bound with some
.prg code
* harbour/utils/hbrun/Makefile
* harbour/utils/hbrun/hbrun.prg
* use hbextern library instead of #include "hbextern.ch"
It has no noticeable effect on static builds but greatly
reduce the size of dynamic builds, f.e. current hbrun
linked dynamically in my Linux box has 12KB.
* harbour/contrib/hbw32/dllcall.c
* minor cleanup in return values
* harbour/contrib/hbole/ole2.c
* cleaned casting in UNICODE conversions
* harbour/source/common/expropt2.c
* replicate CA-Cl*pper compile time optimization bugs:
"" $ <literString> => .T.
AT( "", <literString> ) => 1
CHR( 256 ) => ""
only when Harbour extensions (-kh) are not enabled, f.e.
in strict Clipper compatibility mode (-kc)
* harbour/utils/hbtest/rt_hvma.prg
* harbour/utils/hbtest/rt_str.prg
* updated to test Clipper and Harbour compile time modes in
the above situations
* harbour/common.mak
* harbour/source/rtl/Makefile
- harbour/source/rtl/strings.c
* harbour/source/common/hbstr.c
* moved hb_strEmpty() from RTL to COMMON library
* harbour/include/hbexprb.c
* harbour/include/hbexprop.h
* harbour/source/common/expropt2.c
+ added compile time optimization for EMPTY() function
; removed 'TODO: empty optimization' note
* harbour/source/rtl/itemseri.c
% compress trailing spaces during string item serialization
* harbour/include/hbapi.h
* harbour/source/vm/hashes.c
+ added hb_hashAddNew() - works like hb_hashAdd() but it adds item
only if new key is used
* harbour/source/vm/hvm.c
* use hb_hashAddNew() instead of hb_hashAdd() for HB_P_HASHGEN
I cannot revert the order of hash item during compilation because
it will also change the order of user expression evaluation.
* harbour/include/dbedit.ch
* harbour/source/rtl/dbedit.prg
+ added support for undocumented Clipper DE_APPEND mode - code
covered by HB_C52_UNDOC
% ignore K_MOUSEMOVE events to avoid flickering just like CA-Cl*pper
does
+ added support for cell positioning with mouse left key - CL53
compatible behavior covered by HB_COMPAT_C53 macro
* changed static function name dbEditCallUser() to CallUser() for
strict Clipper compatibility - some user function code may check
PROCNAME()
* some minor optimizations and fixes
* harbour/contrib/hbmzip/hbmzip.c
* indenting
* harbour/source/vm/hvm.c
* formatting
* source/vm/hvm.c
% Minor opt to __SETPROFILE(), __TRACEPRGCALLS()
! __SETPROFILE() to only set the value if a parameter was passed.
This way it's possible to read the value without destroying it.
* include/hbvm.h
* source/vm/hvm.c
* source/vm/extrap.c
! Fixed OS/2 problem reported by David.
(BTW, do we need really need to remove the exception
handler before exiting? If yes, shouldn't we do the
same under Win32?)
* source/common/hbstr.c
! Silenced one 'loss of significant digit' BCC warning.
* harbour/include/hbvm.h
* harbour/source/vm/hvm.c
* harbour/source/vm/extrap.c
* moved code to set exception handler from hvm.c to extrap.c
+ added void hb_vmSetExceptionHandler( void ) to set exception
filter
! fixed problem with C++ builds caused by missing extern "C"
declaration for exception handlers in extrap.c
* harbour/source/vm/estack.c
* declare hb_stack as static variable when HB_STACK_MACROS is
disabled to be sure that non extern code will access hb_stack
It's very important to eliminate such code before we add MT
support.
* harbour/source/vm/hvm.c
* changed hb_vmFrame() to work in the same way as hb_vmVFrame()
* harbour/source/rtl/hbgtcore.c
! fixed wrong clear column in right horizontal scrolling
* harbour/source/rtl/memoedit.prg
* use hb_inkeySetLast( n ) instead of KEYBOARD Chr( n ) ; InKey()
* common.mak
* source/vm/Makefile
* source/vm/mainwin.c
* source/vm/estack.c
+ source/vm/extrap.c
* source/vm/hvm.c
* Rearranged/cleaned up exception handlers.
* Renamed OS/2 one to comply with namespace rules.
* Moved from estack.c/mainwin.c to extrap.c and hvm.c.
* win32 ex.handler now enabled by default at HVM startup.
* win32 ex.handler now writes exception info into hb_ex.log.
* win32 ex.handler now pops up a MessageBox() by default.
We should consider removing this but currently the default
Windows handler kicks in anyway, which is also a GUI dialog.
; TODO: A common way to log these errors across all platforms.
; NOTE: HB_INCLUDE_WINEXCHANDLER is not used by Harbour anymore.
; NOTE: Please test OS/2
* include/hbapi.h
* source/vm/hvm.c
* source/vm/cmdarg.c
+ Added support for internal switch format:
--hb:<internal switch>
//hb:<internal switch>
Both are equivalent to original CA-Cl*pper:
//<internal switch>
* harbour/source/rtl/tbrowse.prg
! fixed positioning when cursor is moved by :rowpos assignment and
vertical move methods used together
* harbour/source/vm/estack.c
* updated hb_stackDispCall(), hb_UnhandledExceptionFilter(),
OS2TermHandler() to show functions where codeblock where
defined instead of EVAL() just like in call stack presented
by cancel operation
* updated hb_UnhandledExceptionFilter() to work in unicode mode
* harbour/source/vm/hvm.c
! fixed 1-st procedure presented in call stack during cancel operation
to use the same conditions as for all others
* contrib/rddads/make_b32.bat
* contrib/rddads/make_vc.bat
* contrib/rddads/ads.ch
* contrib/rddads/rddads.h
* contrib/rddads/ads1.c
* contrib/rddads/adsfunc.c
* contrib/rddads/adsmgmnt.c
+ Added ACE version autodetection.
You can override with: -DADS_LIB_VERSION=700 (and similar)
(ADS_REQUIRE_VERSION still accepted for compatibility)
! Fixed a few lib version related problems.
! hMgmtHandle global renamed to ads_g_hMgmtHandle.
* Formatting.
* contrib/rddads/rddads.h
+ QUESTION: added about ADS_MAX_KEY_LENGTH redefinition.
Is it needed?
* source/compiler/hbmain.c
* Changed output device (hb_compOutStd() -> hb_compOutErr())
for following texts:
"Compiling..."
"No code generated"
"Lines x, Functions/Procedures x"
This is to replicate CA-Cl*pper behaviour a bit more.
* include/hbextern.ch
* common.mak
* source/rtl/Makefile
* source/rtl/maxrow.c
+ source/rtl/scrrow.c
* contrib/xhb/hbcompat.ch
+ Added hb_ScrMaxRow(), hb_ScrMaxCol()
These will return the screen dimensions regardless
of the size of an active window (when using CT
windows for example). Functionality is the same
as MaxRow(.T.) and MaxCol(.T.) previously.
! MaxRow()/MaxCol() extended parameters removed.
+ Added MaxRow(.T.)/MaxCol(.T.) conversions for
xhb lib (hbcompat.ch) in both directions.
; XBase++ doesn't have any extended parameters
for Max*() function. Flagship has two of them,
both of them doing something different. CAVO doesn't
have these functions at all.
* contrib/xhb/hbcompat.ch
! GTI_* macros updated to HB_GTI_*.
* source/vm/memvclip.c
% Minor opt in __QQPUB().
* source/vm/extend.c
* 0 -> NULL
* source/vm/estack.c
- QUESTION removed.
* source/lang/msgbgmik.c
* source/rtl/console.c
* source/rtl/philes.c
* source/rtl/adir.prg
* source/rtl/getsys53.prg
* source/rtl/getsys.prg
* source/rtl/tget.prg
* source/rtl/ttopbar.prg
* source/rtl/pushbtn.prg
* source/rtl/mod.c
* source/rtl/memofile.c
* source/rtl/radiobtn.prg
* source/rtl/filesys.c
* source/rtl/tbrowse.prg
* source/vm/estack.c
* source/vm/itemapi.c
* source/vm/hvm.c
* source/vm/cmdarg.c
* source/vm/fm.c
* source/vm/eval.c
* source/common/hbver.c
* source/common/expropt2.c
* utils/hbtest/hbtest.prg
* utils/hbtest/rt_misc.prg
* utils/hbtest/rt_str.prg
! Comment fixes and minor formatting.
* source/rtl/tget.prg
! Fixed to not extend ::left(), ::right(), ::backspace(),
::delete() with an internally used (but also externally
accessible) extra parameter. This is interface is now
made fully C5x compatible.
* tests/rto_tb.prg
! Fixed to override __eInstVar53() (instead of _eInstVar())
* include/hbextern.ch
* common.mak
* source/rdd/Makefile
+ source/rdd/dbcmdhb.c
+ Added non-internal versions of __dbPack() and __dbZap(),
named: hb_dbPack() and hb_dbZap(). If group needs it I
can add dbPack() and dbZap() too in separate files to
lessen the problem of name collision with app code.
* source/rtl/inkey.c
* Formatting.
+ HB_KEYPUT(): Now possible to pass an array with string elements.
(see feature in xhb/__KEYBOARD())
* HB_KEYPUT(): For string parameter it now uses hb_inkeySetText()
API, rather than a loop of hb_inkeyPut()s.
* contrib/xhb/xhbfunc.c
! xhb flavour of __KEYBOARD() sync fixed. (hb_inkeySetText() got
extended in xhb, so here we're using hb_inkeyPut() for single
numeric key codes).
; Now same code is used as in HB_KEYPUT().
* source/vm/memvars.c
* source/vm/hvm.c
* source/vm/arrayshb.c
+ Added HB_C52_STRICT branches for the remaining RTEs
which produced different results in hbtest.
! Fixed HB_C52_STRICT RTE for AFill().
; NOTE: It's not possible to build Harbour currently when
HB_C52_STRICT, so it's not easy to test these.
* include/hbclass.ch
! Typos.
* source/rtl/memoedit.prg
* source/rtl/achoice.prg
* source/rtl/treport.prg
* Formatting.
* source/rtl/tobject.prg
* Formatting.
% Minor opt.
* harbour/include/hbclass.ch
! removed:
MESSAGE <msgName> IS <mthName>
used as synonym of:
MESSAGE <msgName> METHOD <mthName>
If someone was using the removed version then please update the
code to MESSAGE ... METHOD ...
The removed command has special meaning in Class(y) and it allow
to define alternate names for existing messages. I'll add support
for them in the future.
* harbour/contrib/hbct/ctwin.c
* added disabled code which is a workaround for some possible
bad side effect caused by online shadow showing by CTWIN.
* harbour/source/rtl/errorint.c
! fixed displaying internal error message
* harbour/source/common/hbver.c
* added "Rev." prefix to shown revision number
* harbour/include/hbexprop.h
* harbour/include/hbexprb.c
* harbour/source/common/expropt1.c
* harbour/source/common/expropt2.c
+ added hb_compExprReduceNegate()
! fixed wrong negate optimizations for platforms where HB_LONG_MAX
is smaller then -HB_LONG_MIN, f.e. all x86 based CPUs.
! fixed setting the size in optimized negative numbers
! fixed some math optimizations to not use casting to double value
when it's not necessary - when double precision is smaller then HB_LONG
(f.e. on x86 it's 53 bits and HB_LONG has 64bit) such casting can damage
up to 11 less significant bits in big 64 bit numbers.
* harbour/source/rtl/hbinet.c
* replaced MAKEWORD() macro with HB_MKWORD() to pacify BCC58 warnings
* harbour/include/hbdefs.h
+ added #include <limits.h>
It should hide some warnings related to redefined integer size constants
Viktor if it will not help for BCC58 warnings then you will have to add
#include <stdint.h>
few lines below but please remember that older BCC version does not
have it so check for the exact compiler version.
! changed macros which setting default numeric item size for more strict
Clipper compatible mode. I'm not a fun of some Clipper behavior in
calculating number size and I left some notes about it in hbdefs.h
Anyhow this and some other modifications below should cover the
differences you've found recently. Some things are not addressed by
me intentionally, f.e. _itemPutNL() in Clipper always set size to 10
without checking the maximum size so it's too small for values less
then -999999999. Harbour compiler makes more compile time optimizations
then Clipper. The formatting rules used by compiler are a little bit
different then by VM so this can be source of some other differences
to Clipper. I can easy create some examples. Harbour supports 64bit
signed integers and Clipper doesn't. This is yet another situation
when we may have different results then Clipper. Most of them can
be hidden if we add new PCODE(s) for integer number with explicit
size but I do not think it's such important to increase PCODE list.
In few cases it will be necessary to disable some optimizations at
all and I do not like it. In the future when I will be adding some
new optimizations I also add compiler switch to disable/enable
optimizations which can have such side effects for people who need
strict formatting.
* harbour/include/hbvmpub.h
* harbour/source/common/hbstr.c
* harbour/source/vm/hvm.c
* harbour/source/vm/itemapi.c
* harbour/source/rtl/round.c
* updated for more Clipper compatible number formating using new macros
* harbour/source/vm/estack.c
* added missing static to s_initSymbol declaration
* harbour/include/hbgtinfo.ch
* harbour/source/rtl/scroll.c
* formatting
* harbour/common.mak
* added empty line necessary for some make systems (f.e. wmake)
* harbour/bin/hb-func.sh
* changed system libs order to avoid problems on some platforms
* harbour/bin/pack_src.sh
* collect information about repository files using 'svn status -v'
command instead of scanning .svn/entries files to avoid problems
with different formats used by SVN
* harbour/include/hbchksum.h
* harbour/include/hbset.h
! added missing extern in few function prototypes
* harbour/include/hbclass.ch
* use HB_CLS_PARAM_LIST macro instead of ... for strict C52 mode
* harbour/source/common/hbfsapi.c
+ added missing const to one declaration
* harbour/source/common/hbstr.c
* minor cleanup in hb_stricmp()
* harbour/source/rtl/inkey.c
! casting to avoid negative values during char to int translation
* harbour/source/rtl/mouse53.c
* added one internal definition
* harbour/source/rtl/philes.c
* removed unnecessary #include(s)
* added missing const to one declaration
* harbour/source/rtl/valtype.c
* harbour/source/vm/hashfunc.c
* cleanup RT error call to eliminate hb_paramError() function
* harbour/source/pp/pplib.c
* harbour/source/vm/runner.c
* harbour/source/vm/debug.c
* harbour/source/vm/arrayshb.c
* harbour/source/vm/classes.c
* harbour/source/vm/hvm.c
* harbour/source/rtl/hbgtcore.c
* harbour/source/rtl/gtfunc.c
* harbour/source/rtl/hbinet.c
* harbour/source/rtl/hbregex.c
* harbour/source/rtl/idle.c
* harbour/source/rtl/errorapi.c
* harbour/source/rtl/hbtoken.c
* harbour/source/rtl/direct.c
* harbour/source/rdd/dbcmd.c
* harbour/source/rdd/dbcmd53.c
* harbour/source/rdd/fieldhb.c
* harbour/source/rdd/hbsix/sxcompr.c
* harbour/source/rdd/hbsix/sxcrypt.c
* harbour/source/compiler/hbcmplib.c
* harbour/contrib/hbrddads/adsfunc.c
* harbour/contrib/hbrddads/adsmgmnt.c
- removed unnecessary calls to hb_ret()
% replaced hb_itemRelease( hb_itemReturn( pItem ) ) with
hb_itemReturnRelease( pItem )
% replaced hb_itemPut*( hb_arrayGetItemPtr( pArray, ... ), ... ) with
hb_arraySetNI( pArray, ... )
* harbour/source/macro/macro.y
* harbour/source/macro/macro.yyc
* harbour/contrib/xhb/cstructc.c
* harbour/contrib/hbw32/w32_ole.c
* harbour/contrib/hbgtwvg/wvtcore.c
* cleaned typos with double ;;
* harbour/source/vm/extend.c
* harbour/source/rtl/math.c
* cleaned HB_EXPORT usage
* harbour/source/pp/ppcore.c
! fixed Harbour extension which allows to use match marker
at the beginning of rule definition
* harbour/source/main/harbour.c
! fixed hex conversion in FM log module - fix done by Phil Krylov
in xHarbour
* harbour/source/rdd/nulsys/nulsys.c
+ added dummy version of DBEVAL() and DBFILTER() - these functions
are used in RTL
* harbour/contrib/hbct/bitnum.c
+ added INTNEG(), INTPOS()
+ harbour/contrib/hbct/ctrand.prg
+ added RANDOM(), RAND() - borrowd from xHarbour by Pavel Tsarenko
+ harbour/contrib/hbct/setrc.c
+ added SETRC()
* harbour/contrib/hbct/getinput.prg
% minor optimization
* harbour/contrib/hbct/Makefile
* harbour/contrib/hbct/common.mak
* updated for new files
* harbour/contrib/hbnf/tempfile.prg
* use HB_FTempCreate() - modification borrowed from xHarbour
TOFIX this function uses hb_isbyref() which does not exist
in Harbour
* harbour/config/w32/msvc.cf
+ added -nologo flag for cl.exe (Phil Krylov's modification borrowed
from xHarbour
* harbour/config/w32/mingw32.cf
- removed repeated definitions
* harbour/config/w32/install.cf
! added alternative install rule for command.com with max line size limit
* harbour/source/rtl/hbgtcore.c
* formatting
* harbour/source/vm/hvm.c
! fixed typo in HB_TRACE message
* harbour/source/rtl/gtwvt/gtwvt.h
* harbour/source/rtl/gtwvt/gtwvt.c
* updated for multi window usage
* harbour/source/vm/maindllp.c
* use MessageBox() instead of hb_errInternal() - thanks to Jon Jagger
for information about the problem
* harbour/source/rtl/gtwvt/gtwvt.h
* harbour/source/rtl/gtwvt/gtwvt.c
* removed unused global hdc
* formatting and minor code cleanup
* harbour/source/vm/hvm.c
+ added to hb_vmRequestReenter() support for checking if HVM is
properly initialized and working for code which may want to execute
PCODE before HVM initialization or after HVM close - in such case
hb_vmRequestReenter() will return FALSE.
Please also remember that in the future hb_vmRequestReenter()
may return FALSE also in some other cases.
* harbour/source/vm/eval.c
* use hb_vmRequestReenter()/hb_vmRequestRestore() in hb_itemDo[C]()
instead of hb_vmPushState()/hb_vmPopState()
* harbour/contrib/gtwvg/gtwvt.c
! always use hb_vmRequestReenter()/hb_vmRequestRestore() before
executing .prg functions/codeblocks. It will resolve the problem
with executing .prg functions during HVM closing. Anyhow I suggest
to register C cleanup functions using hb_vmAtExit() for code which
needs some additional destructor/closing procedure.
* code formatting and indenting
* harbour/include/hbvm.h
* harbour/source/vm/hvm.c
* make hb_vmPushNumInt() public function
* harbour/contrib/gtwvg/wvtcore.c
! fixed hb_wvt_gtDlgProcMLess() and hb_wvt_gtDlgProcModal()
- fixed GPF when codeblock are used
- use hb_vmPushNumInt() instead of hb_vmPushLong() to push
handles and numbers with potentially unknown size.
I still suggest to use pointers ITEMs instead of converting
handles to numbers but I'm leaving such modifications to library
authors - using hb_vmPushNumInt() is a workaround for striping
highest 32 bit from handles by hb_vmPushLong() in XP64
- use hb_vmRequestReenter() / hb_vmRequestRestore() to avoid crash
when function/codeblock is executed during HVM has been serving
an exception (f.e. BREAK/QUIT/RETURN)
* harbour/include/hbcomp.h
* harbour/include/hbmacro.h
* harbour/source/compiler/hbmain.c
* harbour/source/compiler/harbour.y
* harbour/source/vm/macro.c
* harbour/source/vm/garbage.c
* harbour/source/vm/hvm.c
* harbour/source/vm/classes.c
* harbour/source/rdd/dbf1.c
* harbour/source/rdd/dbffpt/dbffpt1.c
* harbour/source/rtl/binnum.c
* harbour/source/rtl/gtwvt/gtwvt.c
* added explicit casting or changed some declarations to avoid
warning about possible data lost in conversions
* harbour/source/rtl/direct.c
% optimized directory array creation and fixed one TOFIX note
I left few warnings intentionally to mark places which should be
updated in the future (f.e. HB_SYMBOLSCOPE translations).
Victor, if you can please make build test with MSVC builds and
send the list of warnings which still exist to harbour-devel.
* harbour/source/vm/hvm.c
* do not clear references to public functions in symbol tables used
by unloaded modules
* harbour/source/compiler/complex.c
+ added disabled yet code to decode datetime in VFP strict date form
{^YYYY/MM/DD[,][HH[:MM[:SS[.CCC]]][A|P]]}
It's for future datetime implementation.
