diff options
author | rpj <rpj> | 1998-12-28 23:01:00 +0000 |
---|---|---|
committer | rpj <rpj> | 1998-12-28 23:01:00 +0000 |
commit | 0749394433f301cccd22d280cee1dd760b72e876 (patch) | |
tree | a5084cfaea800cdc96c25bf71a179562e18c552c /cleanup.c | |
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 'cleanup.c')
-rw-r--r-- | cleanup.c | 135 |
1 files changed, 135 insertions, 0 deletions
@@ -12,6 +12,139 @@ #include "pthread.h" #include "implement.h" +/* + * Code contributed by John E. Bossom <JEB>. + */ + +_pthread_cleanup_t * +_pthread_pop_cleanup (int execute) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * This function pops the most recently pushed cleanup + * handler. If execute is nonzero, then the cleanup handler + * is executed if non-null. + * + * PARAMETERS + * execute + * if nonzero, execute the cleanup handler + * + * + * DESCRIPTION + * This function pops the most recently pushed cleanup + * handler. If execute is nonzero, then the cleanup handler + * is executed if non-null. + * NOTE: specify 'execute' as nonzero to avoid duplication + * of common cleanup code. + * + * RESULTS + * N/A + * + * ------------------------------------------------------ + */ +{ + _pthread_cleanup_t *cleanup; + + cleanup = pthread_getspecific (_pthread_cleanupKey); + + if (cleanup != NULL) + { + if (execute && (cleanup->routine != NULL)) + { + +#ifdef _WIN32 + + __try + { + /* + * Run the caller's cleanup routine. + */ + (*cleanup->routine) (cleanup->arg); + } + __except (EXCEPTION_EXECUTE_HANDLER) + { + /* + * A system unexpected exception had occurred + * running the user's cleanup routine. + * We get control back within this block. + */ + } + } + +#else + + /* + * Run the caller's cleanup routine. + */ + (*cleanup->routine) (cleanup->arg); + +#endif /* _WIN32 */ + + pthread_setspecific (_pthread_cleanupKey, cleanup->prev); + } + + return (cleanup); + +} /* _pthread_pop_cleanup */ + + +void +_pthread_push_cleanup (_pthread_cleanup_t * cleanup, + void (*routine) (void *), + void *arg) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * This function pushes a new cleanup handler onto the thread's stack + * of cleanup handlers. Each cleanup handler pushed onto the stack is + * popped and invoked with the argument 'arg' when + * a) the thread exits by calling 'pthread_exit', + * b) when the thread acts on a cancellation request, + * c) or when the thrad calls pthread_cleanup_pop with a nonzero + * 'execute' argument + * + * PARAMETERS + * cleanup + * a pointer to an instance of pthread_cleanup_t, + * + * routine + * pointer to a cleanup handler, + * + * arg + * parameter to be passed to the cleanup handler + * + * + * DESCRIPTION + * This function pushes a new cleanup handler onto the thread's stack + * of cleanup handlers. Each cleanup handler pushed onto the stack is + * popped and invoked with the argument 'arg' when + * a) the thread exits by calling 'pthread_exit', + * b) when the thread acts on a cancellation request, + * c) or when the thrad calls pthread_cleanup_pop with a nonzero + * 'execute' argument + * NOTE: pthread_push_cleanup, pthread_pop_cleanup must be paired + * in the same lexical scope. + * + * RESULTS + * pthread_cleanup_t * + * pointer to the previous cleanup + * + * ------------------------------------------------------ + */ +{ + cleanup->routine = routine; + cleanup->arg = arg; + cleanup->prev = pthread_getspecific (_pthread_cleanupKey); + + pthread_setspecific (_pthread_cleanupKey, (void *) cleanup); + +} /* _pthread_push_cleanup */ + +/* </JEB> */ + + +#if 0 /* Pre Bossom */ + int _pthread_handler_push(int stack, int poporder, @@ -214,3 +347,5 @@ _pthread_destructor_run_all() break; } } + +#endif /* Pre Bossom */ |