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1999-01-13Thu Jan 14 14:27:13 1999 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* cleanup.c: Correct _cplusplus to __cplusplus wherever used. * Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS. The derived Makefile will compile all units of the package as C++ so that those which include try/catch exception handling should work properly. The package should compile ok if CC=gcc, however, exception handling will not be included and thus thread cancellation, for example, will not work. * cleanup.c (_pthread_pop_cleanup): Add #warning to compile this file as C++ if using a cygwin32 environment. Perhaps the whole package should be compiled using g++ under cygwin. * private.c (_pthread_threadStart): Change #error directive into #warning and bracket for __CYGWIN__ and derivative compilers.
1999-01-12Wed Jan 13 09:34:52 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* build.bat: Delete old binaries before compiling/linking. Tue Jan 12 09:58:38 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * dll.c: The Microsoft compiler pragmas probably are more appropriately protected by _MSC_VER than by _WIN32. - Tor Lillqvist <tml@iki.fi>. * condvar.c (pthread_cond_timedwait): Fix function description comments. * pthread.h: Define ETIMEDOUT. This should be returned by pthread_cond_timedwait which is not implemented yet as of snapshot-1999-01-04-1305. It was implemented in the older version. The Microsoft compiler pragmas probably are more appropriately protected by _MSC_VER than by _WIN32. - Tor Lillqvist <tml@iki.fi>. * pthread.def: pthread_mutex_destroy was missing from the def file - Tor Lillqvist <tml@iki.fi>. * condvar.c (pthread_cond_broadcast): Ensure we only wait on threads if there were any waiting on the condition. I think pthread_cond_broadcast should do the WaitForSingleObject only if cv->waiters > 0? Otherwise it seems to hang, at least in the testg thread program from glib. - Tor Lillqvist <tml@iki.fi>. * semaphore.c (sem_post): Correct typo in comment. Mon Jan 11 20:33:19 1999 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * pthread.h: Re-arrange conditional compile of pthread_cleanup-* macros. * cleanup.c (_pthread_push_cleanup): Provide conditional compile of cleanup->prev.
1999-01-04Parts of this package are going to have to be C++ in the GNU world because werpj
now use exception handling to implement thread cancellation. The MSC compiler appears to know about __try/__except blocks, but gcc (ie. the GNU ANSI C compiler) doesn't know about the equivalent C++ try/catch blocks. This should not be a problem since gcc and g++ are nearly always available together. Some file names may need to change in the CVS repository however. Tue Jan 5 16:33:04 1999 Ross Johnson <rpj@swan.canberra.edu.au> * cleanup.c (_pthread_pop_cleanup): Add C++ version of __try/__except block. Move trailing "}" out of #ifdef _WIN32 block left there by (my) mistake. * private.c: Remove #include <errno.h> which is included by pthread.h.
1999-01-03Merge John Bossom's code into the main trunk. See ChangeLog for details.snapshot-1999-01-04-1305rpj
This will be tagged as snapshot-1999-01-04-1305
1998-12-06As well as patches from Anders, this commit includes some older changesrpj
that hadn't been checked in. Those are to finish off the original TSD management scheme which will now start to be replaced by John Bossom's implementation. Anders' description of his changes:- Fixes the problem with `TryEnterCriticalSection' on w95 systems. Instead of directly calling `TryEnterCriticalSection' it tries to get a pointer at DLL startup and only calls the function if it exists. See ChangeLog for things changed. 1998-12-05 Anders Norlander <anorland@hem2.passagen.se> * implement.h (_pthread_try_enter_critical_section): New extern * dll.c (_pthread_try_enter_critical_section): New pointer to TryEnterCriticalSection if it exists; otherwise NULL. * dll.c (PthreadsEntryPoint): Initialize _pthread_try_enter_critical_section at startup and release kernel32 handle when DLL is being unloaded. * mutex.c (pthread_mutex_trylock): Replaced check for NT with a check if _pthread_try_enter_critical_section is valid pointer to a function. Call _pthread_try_enter_critical_section instead of TryEnterCriticalSection to avoid errors on Win95. Sun Nov 15 21:24:06 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * cleanup.c (_pthread_destructor_run_all): Declare missing void * arg. Fixup CVS merge conflicts. Fri Oct 30 15:15:50 1998 Ross Johnson <rpj@swan.canberra.edu.au> * cleanup.c (_pthread_handler_push): Fixed bug appending new handler to list reported by Peter Slacik <Peter.Slacik@leibinger.freinet.de>. (new_thread): Rename poorly named local variable to "new_handler". Sat Oct 24 18:34:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * global.c: Add TSD key management array and index declarations. * implement.h: Ditto for externs. Fri Oct 23 00:08:09 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * implement.h (_PTHREAD_TSD_KEY_REUSE): Add enum. * private.c (_pthread_delete_thread): Add call to _pthread_destructor_run_all() to clean up the threads keys. * cleanup.c (_pthread_destructor_run_all): Check for no more dirty keys to run destructors on. Assume that the destructor call always succeeds and set the key value to NULL.
1998-10-14Thu Oct 15 14:05:01 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* private.c (_pthread_new_thread): Remove init of destructorstack. No longer an element of pthread_t.
1998-10-14Wed Oct 14 21:09:24 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_new_thread): Increment _pthread_threads_count. (_pthread_delete_thread): Decrement _pthread_threads_count. Remove some comments. * exit.c (_pthread_exit): : Fix two pthread_mutex_lock() calls that should have been pthread_mutex_unlock() calls. (_pthread_vacuum): Remove call to _pthread_destructor_pop_all(). * create.c (pthread_create): Fix two pthread_mutex_lock() calls that should have been pthread_mutex_unlock() calls. * global.c (_pthread_tsd_mutex): Add mutex for TSD operations. * tsd.c (pthread_key_create): Add critical section. (pthread_setspecific): Ditto. (pthread_getspecific): Ditto. (pthread_key_delete): Ditto. * sync.c (pthread_join): Fix two pthread_mutex_lock() calls that should have been pthread_mutex_unlock() calls.
1998-09-121998-09-12 Ben Elliston <bje@cygnus.com>bje
* {most}.c: Include <errno.h> to get POSIX error values. * signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is defined. * config.h: #undef features, don't #define them. This will be generated by autoconf very soon.
1998-08-06*** empty log message ***rpj
1998-08-04Tue Aug 4 16:57:58 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* private.c (_pthread_delete_thread): Fix typo. Add missing ';'. * global.c (_pthread_virgins): Change types from pointer to array pointer. (_pthread_reuse): Ditto. (_pthread_win32handle_map): Ditto. (_pthread_threads_mutex_table): Ditto. * implement.h(_pthread_virgins): Change types from pointer to array pointer. (_pthread_reuse): Ditto. (_pthread_win32handle_map): Ditto. (_pthread_threads_mutex_table): Ditto. * private.c (_pthread_delete_thread): Fix "entry" should be "thread". * misc.c (pthread_self): Add extern for _pthread_threadID_TlsIndex. * global.c: Add comment. * misc.c (pthread_once): Fix member -> dereferences. Change _pthread_once_flag to once_control->flag in "if" test.
1998-07-30Thu Jul 30 23:12:45 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* implement.h: Remove _pthread_find_entry() prototype. * private.c: Extend comments. Remove _pthread_find_entry() - no longer needed. * create.c (_pthread_start_call): Add call to TlsSetValue() to store the thread ID. * dll.c (PthreadsEntryPoint): Implement. This is called whenever a process loads the DLL. Used to initialise thread local storage. * implement.h: Add _pthread_threadID_TlsIndex. Add ()s around _PTHREAD_VALID expression. * misc.c (pthread_self): Re-implement using Win32 TLS to store the threads own ID.
1998-07-29Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c: Corrections in comments. (_pthread_new_thread): Alter "if" flow to be more natural.
1998-07-29Wed Jul 29 11:39:03 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* cleanup.c (_pthread_handler_push): Same as below. * create.c (pthread_create): Same as below. * private.c (_pthread_new_thread): Rename "new" to "new_thread". Since when has a C programmer been required to know C++?
1998-07-28Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* implement.h: Add _PTHREAD_VALID macro. * sync.c (pthread_join): Modify to use the new thread type and _pthread_delete_thread(). Rename "target" to "thread". Remove extra local variable "target". (pthread_detach): Ditto. * signal.c (pthread_sigmask): Move init of "us" out of inner block. Fix instance of "this" should have been "us". Rename "us" to "thread". * sched.c (pthread_setschedparam): Modify to use the new thread type. (pthread_getschedparam): Ditto. * private.c (_pthread_find_thread): Fix return type and arg. * implement.h: Remove _PTHREAD_YES and _PTHREAD_NO. (_pthread_new_thread): Add prototype. (_pthread_find_thread): Ditto. (_pthread_delete_thread): Ditto. (_pthread_new_thread_entry): Remove prototype. (_pthread_find_thread_entry): Ditto. (_pthread_delete_thread_entry): Ditto. ( _PTHREAD_NEW, _PTHREAD_INUSE, _PTHREAD_EXITED, _PTHREAD_REUSE): Add. * create.c (pthread_create): Minor rename "us" to "new" (I need these cues but it doesn't stop me coming out with some major bugs at times). Load start_routine and arg into the thread so the wrapper can call it. * exit.c (pthread_exit): Fix pthread_this should be pthread_self. * cancel.c (pthread_setcancelstate): Change _pthread_threads_thread_t * to pthread_t and init with pthread_this(). (pthread_setcanceltype): Ditto.
1998-07-28Tue Jul 28 14:04:29 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* private.c: Added detailed explanation of the new thread allocation scheme. (_pthread_new_thread): Totally rewritten to use new thread allocation scheme. (_pthread_delete_thread): Ditto. (_pthread_find_thread): Obsolete.
1998-07-27Mon Jul 27 17:46:37 1998 Ross Johnson <rpj@swan.canberra.edu.au>rpj
* create.c (pthread_create): Start of rewrite. Not completed yet. * private.c (_pthread_new_thread_entry): Start of rewrite. Not complete. * implement.h (_pthread_threads_thread): Rename, remove thread member, add win32handle and ptstatus members. (_pthread_t): Add. * pthread.h: pthread_t is no longer mapped directly to a Win32 HANDLE type. This is so we can let the Win32 thread terminate and reuse the HANDLE while pthreads holds it's own thread ID until the last waiting join exits.
1998-07-26Mon Jul 27 00:20:37 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_delete_thread_entry): Destroy the thread entry attribute object before deleting the thread entry itself. * attr.c (pthread_attr_init): Initialise cancel_pending = FALSE. (pthread_attr_setdetachstate): Rename "detached" to "detachedstate". (pthread_attr_getdetachstate): Ditto. * exit.c (_pthread_exit): Fix incorrect check for detachedstate. * implement.h (_pthread_call_t): Remove env member.
1998-07-25Sun Jul 26 00:09:59 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_delete_thread_entry): Mutex locks removed. Mutexes must be applied at the caller level. (_pthread_new_thread_entry): Ditto. (_pthread_new_thread_entry): Init cancelstate, canceltype, and cancel_pending to default values. (_pthread_new_thread_entry): Rename "this" to "new". (_pthread_find_thread_entry): Rename "this" to "entry". (_pthread_delete_thread_entry): Rename "thread_entry" to "entry". * create.c (_pthread_start_call): Mutexes changed to _pthread_count_mutex. All access to the threads table entries is under the one mutex. Otherwise chaos reigns. Sat Jul 25 23:16:51 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au> * implement.h (_pthread_threads_thread): Move cancelstate and canceltype members out of pthread_attr_t into here.
1998-07-25Sat Jul 25 00:00:13 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* create.c (_pthread_start_call): Set thread priority. Ensure our thread entry is removed from the thread table but only if pthread_detach() was called and there are no waiting joins. (pthread_create): Set detach flag in thread entry if the thread is created PTHREAD_CREATE_DETACHED. * pthread.h (pthread_attr_t): Rename member "detachedstate". * attr.c (pthread_attr_init): Rename attr members. * exit.c (pthread_exit): Fix indirection mistake. * implement.h (_PTHREAD_THREADS_TABLE_INDEX): Add. * exit.c (_pthread_vacuum): Fix incorrect args to _pthread_handler_pop_all() calls. Make thread entry removal conditional. * sync.c (pthread_join): Add multiple join and async detach handling. * implement.h (_PTHREAD_THREADS_TABLE_INDEX): Add. * global.c (_pthread_threads_mutex_table): Add. * implement.h (_pthread_once_flag): Remove. (_pthread_once_lock): Ditto. (_pthread_threads_mutex_table): Add. * global.c (_pthread_once_flag): Remove. (_pthread_once_lock): Ditto. * sync.c (pthread_join): Fix tests involving new return value from _pthread_find_thread_entry(). (pthread_detach): Ditto. * private.c (_pthread_find_thread_entry): Failure return code changed from -1 to NULL.
1998-07-24 * sync.c (pthread_join): Save valueptr arg in joinvalueptr forrpj
pthread_exit() to use. * private.c (_pthread_new_thread_entry): Initialise joinvalueptr to NULL. * create.c (_pthread_start_call): Rewrite to facilitate joins. pthread_exit() will do a longjmp() back to here. Does appropriate cleanup and exit/return from the thread. (pthread_create): _beginthreadex() now passes a pointer to our thread table entry instead of just the call member of that entry. * implement.h (_pthread_threads_thread): New member void ** joinvalueptr. (_pthread_call_t): New member jmpbuf env. * exit.c (pthread_exit): Major rewrite to handle joins and handing value pointer to joining thread. Uses longjmp() back to _pthread_start_call().
1998-07-23Fri Jul 24 03:00:25 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* attr.c (pthread_attr_destroy): Fix merge conflicts. (pthread_attr_getdetachstate): Fix merge conflicts. (pthread_attr_setdetachstate): Fix merge conflicts. * pthread.h: Fix merge conflicts. * sync.c (pthread_join): Fix merge conflicts.
1998-07-23Fri Jul 24 00:21:21 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* create.c (pthread_create): Arg to _pthread_new_thread_entry() changed. See next entry. Move mutex locks out. Changes made yesterday and today allow us to start the new thread running rather than temporarily suspended. * private.c (_pthread_new_thread_entry): _pthread_thread_table was changed back to a table of thread structures rather than pointers. As such we're trading storage for increaded speed. This routine was modified to work with the new table. Mutex lock put in around global data accesses. (_pthread_find_thread_entry): Ditto (_pthread_delete_thread_entry): Ditto
1998-07-22Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge conflicts. * private.c (_pthread_find_thread_entry): Changes to return type to support leaner _pthread_threads_table[] which now only stores _pthread_thread_thread_t *. (_pthread_new_thread_entry): Internal changes. (_pthread_delete_thread_entry): Internal changes to avoid contention. Calling routines changed accordingly. * pthread.h: Modified cleanup macros to use new generic push and pop. Added destructor and atfork stacks to _pthread_threads_thread_t. * cleanup.c (_pthread_handler_push, _pthread_handler_pop, _pthread_handler_pop_all): Renamed cleanup push and pop routines and made generic to handle destructors and atfork handlers as well. * create.c (_pthread_start_call): New function is a wrapper for all new threads. It allows us to do some cleanup when the thread returns, ie. that is otherwise only done if the thread is cancelled. * exit.c (_pthread_vacuum): New function contains code from pthread_exit() that we need in the new _pthread_start_call() as well. * implement.h: Various additions and minor changes. * pthread.h: Various additions and minor changes. Change cleanup handler macros to use generic handler push and pop functions. * attr.c: Minor mods to all functions. (is_attr): Implemented missing function. * create.c (pthread_create): More clean up. * private.c (_pthread_find_thread_entry): Implement. (_pthread_delete_thread_entry): Implement. (_pthread_new_thread_entry): Implement. These functions manipulate the implementations internal thread table and are part of general code cleanup and modularisation. They replace _pthread_getthreadindex() which was removed. * exit.c (pthread_exit): Changed to use the new code above. * pthread.h: Add cancelability constants. Update comments.
1998-07-21Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* cleanup.c (_pthread_cleanup_push): Implement. (_pthread_cleanup_pop): Implement. (_pthread_do_cancellation): Implement. These are private to the implementation. The real cleanup functions are macros. See below. * pthread.h (pthread_cleanup_push): Implement as a macro. (pthread_cleanup_pop): Implement as a macro. Because these are macros which start and end a block, the POSIX scoping requirement is observed. See the comment in the file. * exit.c (pthread_exit): Refine the code. * create.c (pthread_create): Code cleanup. * implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T) up to multiple of DWORD. Add function prototypes. * private.c (_pthread_getthreadindex): "*thread" should have been "thread". Detect empty slot fail condition.
1998-07-19Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>rpj
* private.c (_pthread_getthreadindex): Implement.