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1998-07-22 Ben Elliston <bje@cygnus.com>
* pthread.h (pthread_atfork): Add function prototype.
* fork.c (pthread_atfork): Preliminary implementation.
(_pthread_fork): Likewise.
Wed Jul 22 00:16:22 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* 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.
1998-07-20 Ben Elliston <bje@cygnus.com>
* misc.c (pthread_once): Implement. Don't use a per-application
flag and mutex--make `pthread_once_t' contain these elements in
their structure. The earlier version had incorrect semantics.
* pthread.h (_pthread_once_flag): Add new variable. Remove.
(_pthread_once_lock): Add new mutex lock to ensure integrity of
access to _pthread_once_flag. Remove.
(pthread_once): Add function prototype.
(pthread_once_t): Define this type.
Mon Jul 20 02:31:05 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* private.c (_pthread_getthreadindex): Implement.
* pthread.h: Add application static data dependent on
_PTHREADS_BUILD_DLL define. This is needed to avoid allocating
non-sharable static data within the pthread DLL.
* implement.h: Add _pthread_cleanup_stack_t, _pthread_cleanup_node_t
and _PTHREAD_HASH_INDEX.
* exit.c (pthread_exit): Begin work on cleanup and de-allocate
thread-private storage.
* create.c (pthread_create): Add thread to thread table.
Keep a thread-private copy of the attributes with default values
filled in when necessary. Same for the cleanup stack. Make
pthread_create C run-time library friendly by using _beginthreadex()
instead of CreateThread(). Fix error returns.
Sun Jul 19 16:26:23 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* implement.h: Rename pthreads_thread_count to _pthread_threads_count.
Create _pthread_threads_thread_t struct to keep thread specific data.
* create.c: Rename pthreads_thread_count to _pthread_threads_count.
(pthread_create): Handle errors from CreateThread().
1998-07-19 Ben Elliston <bje@cygnus.com>
* condvar.c (pthread_cond_wait): Generalise. Moved from here ..
(cond_wait): To here.
(pthread_cond_timedwait): Implement; use generalised cond_wait().
* pthread.h (pthread_key_t): Define this type.
(pthread_key_create): Add function prototype.
(pthread_setspecific): Likewise.
(pthread_getspecific): Likwise.
(pthread_key_delete): Likewise.
* tsd.c (pthread_key_create): Implement.
(pthread_setspecific): Likewise.
(pthread_getspecific): Likewise.
(pthread_key_delete): Likewise.
* mutex.c (pthread_mutex_trylock): Return ENOSYS if this function
is called on a Win32 platform which is not Windows NT.
1998-07-18 Ben Elliston <bje@cygnus.com>
* condvar.c (pthread_condattr_init): Do not attempt to malloc any
storage; none is needed now that condattr_t is an empty struct.
(pthread_condattr_destory): Likewise; do not free storage.
(pthread_condattr_setpshared): No longer supported; return ENOSYS.
(pthread_condattr_getpshared): Likewise.
(pthread_cond_init): Implement with help from Douglas Schmidt.
Remember to initialise the cv's internal mutex.
(pthread_cond_wait): Likewise.
(pthread_cond_signal): Likewise.
(pthread_cond_broadcast): Likewise.
(pthread_cond_timedwait): Preliminary implementation, but I need
to see some API documentation for `WaitForMultipleObject'.
(pthread_destory): Implement.
* pthread.h (pthread_cond_init): Add function protoype.
(pthread_cond_broadcast): Likewise.
(pthread_cond_signal): Likewise.
(pthread_cond_timedwait): Likewise.
(pthread_cond_wait): Likewise.
(pthread_cond_destroy): Likewise.
(pthread_cond_t): Define this type. Fix for u_int. Do not assume
that the mutex contained withing the pthread_cond_t structure will
be a critical section. Use our new POSIX type!
* implement.h (_pthread_condattr_t): Remove shared attribute.
1998-07-17 Ben Elliston <bje@cygnus.com>
* pthread.h (PTHREADS_PROCESS_PRIVATE): Remove.
(PTHREAD_PROCESS_SHARED): Likewise. No support for mutexes shared
across processes for now.
(pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better
performance.
* implement.h (_pthread_mutexattr_t): Remove shared attribute.
* mutex.c (pthread_mutexattr_setpshared): This optional function
is no longer supported, since we want to implement POSIX mutex
variables using the much more efficient Win32 critical section
primitives. Critical section objects in Win32 cannot be shared
between processes.
(pthread_mutexattr_getpshared): Likewise.
(pthread_mutexattr_init): No need to malloc any storage; the
attributes structure is now empty.
(pthread_mutexattr_destroy): This is now a nop.
(pthread_mutex_init): Use InitializeCriticalSection().
(pthread_mutex_destroy): Use DeleteCriticalSection().
(pthread_mutex_lock): Use EnterCriticalSection().
(pthread_mutex_trylock): Use TryEnterCriticalSection(). This is
not supported by Windows 9x, but trylock is a hack anyway, IMHO.
(pthread_mutex_unlock): Use LeaveCriticalSection().
1998-07-14 Ben Elliston <bje@cygnus.com>
* attr.c (pthread_attr_setstacksize): Implement.
(pthread_attr_getstacksize): Likewise.
(pthread_attr_setstackaddr): Likewise.
(pthread_attr_getstackaddr): Likewise.
(pthread_attr_init): Likewise.
(pthread_attr_destroy): Likewise.
* condvar.c (pthread_condattr_init): Add `_cond' to function name.
* mutex.c (pthread_mutex_lock): Add `_mutex' to function name.
(pthread_mutex_trylock): Likewise.
(pthread_mutex_unlock): Likewise.
* pthread.h (pthread_condattr_setpshared): Fix typo.
(pthread_attr_init): Add function prototype.
(pthread_attr_destroy): Likewise.
(pthread_attr_setstacksize): Likewise.
(pthread_attr_getstacksize): Likewise.
(pthread_attr_setstackaddr): Likewise.
(pthread_attr_getstackaddr): Likewise.
Mon Jul 13 01:09:55 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* implement.h: Wrap in #ifndef _IMPLEMENT_H
* create.c (pthread_create): Map stacksize attr to Win32.
* mutex.c: Include implement.h
1998-07-13 Ben Elliston <bje@cygnus.com>
* condvar.c (pthread_condattr_init): Implement.
(pthread_condattr_destroy): Likewise.
(pthread_condattr_setpshared): Likewise.
(pthread_condattr_getpshared): Likewise.
* implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon.
(PTHREAD_STACK_MIN): Specify; needs confirming.
(_pthread_attr_t): Define this type.
(_pthread_condattr_t): Likewise.
* pthread.h (pthread_mutex_t): Define this type.
(pthread_condattr_t): Likewise.
(pthread_mutex_destroy): Add function prototype.
(pthread_lock): Likewise.
(pthread_trylock): Likewise.
(pthread_unlock): Likewise.
(pthread_condattr_init): Likewise.
(pthread_condattr_destroy): Likewise.
(pthread_condattr_setpshared): Likewise.
(pthread_condattr_getpshared): Likewise.
* mutex.c (pthread_mutex_init): Implement.
(pthread_mutex_destroy): Likewise.
(pthread_lock): Likewise.
(pthread_trylock): Likewise.
(pthread_unlock): Likewise.
1998-07-12 Ben Elliston <bje@cygnus.com>
* implement.h (_pthread_mutexattr_t): Define this implementation
internal type. Application programmers only see a mutex attribute
object as a void pointer.
* pthread.h (pthread_mutexattr_t): Define this type.
(pthread_mutexattr_init): Add function prototype.
(pthread_mutexattr_destroy): Likewise.
(pthread_mutexattr_setpshared): Likewise.
(pthread_mutexattr_getpshared): Likewise.
(pthread_mutexattr_setprotocol): Likewise.
(pthread_mutexattr_getprotocol): Likewise.
(pthread_mutexattr_setprioceiling): Likewise.
(pthread_mutexattr_getprioceiling): Likewise.
(PTHREAD_PROCESS_PRIVATE): Define.
(PTHREAD_PROCESS_SHARED): Define.
* mutex.c (pthread_mutexattr_init): Implement.
(pthread_mutexattr_destroy): Implement.
(pthread_mutexattr_setprotocol): Implement.
(pthread_mutexattr_getprotocol): Likewise.
(pthread_mutexattr_setprioceiling): Likewise.
(pthread_mutexattr_getprioceiling): Likewise.
(pthread_mutexattr_setpshared): Likewise.
(pthread_mutexattr_getpshared): Likewise.
(insert_attr): New function; very preliminary implementation!
(is_attr): Likewise.
(remove_attr): Likewise.
Sat Jul 11 14:48:54 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* implement.h: Preliminary implementation specific defines.
* create.c (pthread_create): Preliminary implementation.
1998-07-11 Ben Elliston <bje@cygnus.com>
* sync.c (pthread_join): Implement.
* misc.c (pthread_equal): Likewise.
* pthread.h (pthread_join): Add function prototype.
(pthread_equal): Likewise.
1998-07-10 Ben Elliston <bje@cygnus.com>
* misc.c (pthread_self): Implement.
* exit.c (pthread_exit): Implement.
* pthread.h (pthread_exit): Add function prototype.
(pthread_self): Likewise.
(pthread_t): Define this type.
1998-07-09 Ben Elliston <bje@cygnus.com>
* create.c (pthread_create): A dummy stub right now.
* pthread.h (pthread_create): Add function prototype.
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