diff options
author | rpj <rpj> | 1998-12-28 23:01:00 +0000 |
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committer | rpj <rpj> | 1998-12-28 23:01:00 +0000 |
commit | 0749394433f301cccd22d280cee1dd760b72e876 (patch) | |
tree | a5084cfaea800cdc96c25bf71a179562e18c552c /semaphore.h | |
parent | 95aa0a376d93ee021a6c085c71418e9f16513e0a (diff) |
With this update I'm able to build the library and build and run the
tsd1.c test successfully using buildlib.bat and build.bat scripts.
I not convinced that I understand the relationships between "__cplusplus" and
"_WIN32" and the MS compiler, particularly in pthread.h where
pthread_cleanup_push etc is defined. In particular, I have assumed that
the __try/__finally blocks are only available if _WIN32 and __cplusplus
are defined. I suspect this is wrong.
Tue Dec 29 13:11:16 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* implement.h: Move the following struct definitions to pthread.h:
pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_,
pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_,
pthread_condattr_t_, pthread_once_t_.
* pthread.h: Add "_" prefix to pthread_push_cleanup and
pthread_pop_cleanup internal routines, and associated struct and
typedefs.
* buildlib.bat: Add compile command for semaphore.c
* pthread.def: Comment out pthread_atfork routine name.
Now unimplemented.
* tsd.c (pthread_setspecific): Rename tkAssocCreate to
_pthread_tkAssocCreate.
(pthread_key_delete): Rename tkAssocDestroy to
_pthread_tkAssocDestroy.
* sync.c (pthread_join): Rename threadDestroy to _pthread_threadDestroy
* sched.c (is_attr): attr is now **attr (was *attr), so add extra
NULL pointer test.
(pthread_attr_setschedparam): Increase redirection for attr which is
now a **.
(pthread_attr_getschedparam): Ditto.
(pthread_setschedparam): Change thread validation and rename "thread"
Win32 thread Handle element name to match John Bossom's version.
(pthread_getschedparam): Ditto.
* private.c (_pthread_threadDestroy): Rename call to
callUserDestroyRoutines() as _pthread_callUserDestroyRoutines()
* misc.c: Add #include "implement.h".
* dll.c: Remove defined(KLUDGE) wrapped code.
* fork.c: Remove redefinition of ENOMEM.
Remove pthread_atfork() and fork() with #if 0/#endif.
* create.c (pthread_create): Rename threadStart and threadDestroy calls
to _pthread_threadStart and _pthread_threadDestroy.
* implement.h: Rename "detachedstate" to "detachstate".
* attr.c: Rename "detachedstate" to "detachstate".
Mon Dec 28 09:54:39 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* pthread.h (pthread_attr_t_): Change to *pthread_attr_t.
* attr.c (pthread_attr_setstacksize): Merge with John Bossom's version.
(pthread_attr_getstacksize): Merge with John Bossom's version.
(pthread_attr_setstackaddr): Merge with John Bossom's version.
(pthread_attr_getstackaddr): Merge with John Bossom's version.
(pthread_attr_init): Merge with John Bossom's version.
(pthread_attr_destroy): Merge with John Bossom's version.
(pthread_attr_getdetachstate): Merge with John Bossom's version.
(pthread_attr_setdetachstate): Merge with John Bossom's version.
(is_attr): attr is now **attr (was *attr), so add extra NULL pointer
test.
* implement.h (pthread_attr_t_): Add and rename elements in JEB's
version to correspond to original, so that it can be used with
original attr routines.
* pthread.h: Add #endif at end which was truncated in merging.
Diffstat (limited to 'semaphore.h')
-rw-r--r-- | semaphore.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/semaphore.h b/semaphore.h new file mode 100644 index 0000000..7b9d352 --- /dev/null +++ b/semaphore.h @@ -0,0 +1,65 @@ +/* + * ------------------------------------------------------------- + * + * $Header: /cvs/pthreads-win32/pthreads/semaphore.h,v 1.1.2.1 1998/12/28 23:01:15 rpj Exp $ + * + * Module: semaphore.h + * + * Purpose: + * Semaphores aren't actually part of the PThreads standard. + * They are defined by the POSIX Standard: + * + * POSIX 1003.1b-1993 (POSIX.1b) + * + * They are supposed to follow the older UNIX convention for + * reporting errors. That is, on failure they are supposed + * to return a value of -1 and store the appropriate error + * number into 'errno'. + * HOWEVER,errno cannot be modified in a multithreaded + * program on WIN32; therefore, the value is returned as + * the function value. + * It is recommended that you compare for zero (0) for success + * instead of -1 for failure when checking the status of + * these functions. + * + * Disclaimer: + * This software is provided "as is". + * + * The author makes no warranty or representation, either + * express or implied, with respect to this software, its + * quality, performance, merchantability, or fitness for a + * particular purpose. In no event will the author be + * liable for direct, indirect, special, incidental, or + * consequential damages arising out of the use or inability + * to use the software. + * + * ------------------------------------------------------------- + */ +#if !defined( SEMAPHORE_H ) +#define SEMAPHORE_H + +#include <process.h> +#include <errno.h> + +#ifdef __cplusplus +extern "C" +{ +#endif /* __cplusplus */ + +typedef HANDLE sem_t; + +int sem_init (sem_t * sem, int pshared, unsigned int value); + +int sem_destroy (sem_t * sem); + +int sem_trywait (sem_t * sem); + +int sem_wait (sem_t * sem); + +int sem_post (sem_t * sem); + +#ifdef __cplusplus +} /* End of extern "C" */ +#endif /* __cplusplus */ + +#endif /* !SEMAPHORE_H */ |