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allow pthread_mutexattr_setpshared to accept SHARED mutexes, since our current impl actually uses shared mutexes

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This commit is contained in:
Mathias Agopian 2009-07-13 22:00:33 -07:00
parent a2f5e21244
commit b7681167cb
1 changed files with 12 additions and 1 deletions
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13
libc/bionic/pthread.c
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@ -789,7 +789,18 @@ int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared)
if (!attr) if (!attr)
return EINVAL; return EINVAL;
return (pshared == PTHREAD_PROCESS_PRIVATE) ? 0 : ENOTSUP; switch (pshared) {
case PTHREAD_PROCESS_PRIVATE:
case PTHREAD_PROCESS_SHARED:
/* our current implementation of pthread actually supports shared
* mutexes but won't cleanup if a process dies with the mutex held.
* Nevertheless, it's better than nothing. Shared mutexes are used
* by surfaceflinger and audioflinger.
*/
return 0;
}
return ENOTSUP;
} }
int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared) int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared)