From ee1de6a067c70fbd8cb73facd64c3b0b275f9f83 Mon Sep 17 00:00:00 2001 From: deischen Date: Wed, 24 Jan 2001 13:03:38 +0000 Subject: Add weak definitions for wrapped system calls. In general: _foo - wrapped system call foo - weak definition to _foo and for cancellation points: _foo - wrapped system call __foo - enter cancellation point, call _foo(), leave cancellation point foo - weak definition to __foo Change use of global _thread_run to call a function to get the currently running thread. Make all pthread_foo functions weak definitions to _pthread_foo, where _pthread_foo is the implementation. This allows an application to provide its own pthread functions. Provide slightly different versions of pthread_mutex_lock and pthread_mutex_init so that we can tell the difference between a libc mutex and an application mutex. Threads holding mutexes internal to libc should never be allowed to exit, call signal handlers, or cancel. Approved by: -arch --- lib/libkse/thread/thr_mutex_prioceiling.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'lib/libkse/thread/thr_mutex_prioceiling.c') diff --git a/lib/libkse/thread/thr_mutex_prioceiling.c b/lib/libkse/thread/thr_mutex_prioceiling.c index c193c82..d19f521 100644 --- a/lib/libkse/thread/thr_mutex_prioceiling.c +++ b/lib/libkse/thread/thr_mutex_prioceiling.c @@ -34,12 +34,16 @@ #include #include #include -#ifdef _THREAD_SAFE #include #include "pthread_private.h" +#pragma weak pthread_mutexattr_getprioceiling=_pthread_mutexattr_getprioceiling +#pragma weak pthread_mutexattr_setprioceiling=_pthread_mutexattr_setprioceiling +#pragma weak pthread_mutex_getprioceiling=_pthread_mutex_getprioceiling +#pragma weak pthread_mutex_setprioceiling=_pthread_mutex_setprioceiling + int -pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) +_pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) { int ret = 0; @@ -54,7 +58,7 @@ pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) } int -pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) +_pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) { int ret = 0; @@ -69,8 +73,8 @@ pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) } int -pthread_mutex_getprioceiling(pthread_mutex_t *mutex, - int *prioceiling) +_pthread_mutex_getprioceiling(pthread_mutex_t *mutex, + int *prioceiling) { int ret; @@ -85,8 +89,8 @@ pthread_mutex_getprioceiling(pthread_mutex_t *mutex, } int -pthread_mutex_setprioceiling(pthread_mutex_t *mutex, - int prioceiling, int *old_ceiling) +_pthread_mutex_setprioceiling(pthread_mutex_t *mutex, + int prioceiling, int *old_ceiling) { int ret = 0; @@ -107,4 +111,3 @@ pthread_mutex_setprioceiling(pthread_mutex_t *mutex, } return(ret); } -#endif -- cgit v1.1