openssl_mutex_shared.c

#include <pthread.h>
#include <dlfcn.h>

int pthread_mutex_init (pthread_mutex_t *__mutex, const pthread_mutexattr_t *__mutexattr)
{
	int (*real_pthread_mutex_init)(pthread_mutex_t *__mutex, const pthread_mutexattr_t *__mutexattr)
		= dlsym(RTLD_NEXT, "pthread_mutex_init");

	if (__mutexattr) {
		pthread_mutexattr_t attr = *__mutexattr;
		pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
		return real_pthread_mutex_init(__mutex, &attr);
	}

	pthread_mutexattr_t attr;
	pthread_mutexattr_init(&attr);
	pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
	int ret = real_pthread_mutex_init(__mutex, &attr);
	pthread_mutexattr_destroy(&attr);
	return ret;
}

int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
				const pthread_rwlockattr_t *__restrict
				__attr)
{
	int (*real_pthread_rwlock_init)(pthread_rwlock_t *__restrict __rwlock,
				const pthread_rwlockattr_t *__restrict
				__attr)
		= dlsym(RTLD_NEXT, "pthread_rwlock_init");

	if (__attr) {
		pthread_rwlockattr_t attr = *__attr;
		pthread_rwlockattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
		return real_pthread_rwlock_init(__rwlock, &attr);
	}

	pthread_rwlockattr_t attr;
	pthread_rwlockattr_init(&attr);
	pthread_rwlockattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
	int ret = real_pthread_rwlock_init(__rwlock, &attr);
	pthread_rwlockattr_destroy(&attr);
	return ret;
}