diff options
Diffstat (limited to 'tests/mutex3.c')
-rw-r--r-- | tests/mutex3.c | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/tests/mutex3.c b/tests/mutex3.c index 2bb6106..26cb070 100644 --- a/tests/mutex3.c +++ b/tests/mutex3.c @@ -1,12 +1,44 @@ -#include <pthread.h> +/* + * mutex3.c + * + * Declare a static mutex object, lock it, trylock it, + * and then unlock it again. + * + * Depends on API functions: + * pthread_mutex_lock() + * pthread_mutex_trylock() + * pthread_mutex_unlock() + */ -pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; +#include "test.h" + +pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER; +static int washere = 0; + +void * func(void * arg) +{ + assert(pthread_mutex_trylock(&mutex1) == EBUSY); + + washere = 1; + + return 0; +} + int main() { - pthread_mutex_lock(&mutex); - /* do stuff */ - pthread_mutex_unlock(&mutex); + pthread_t t; + + assert(pthread_mutex_lock(&mutex1) == 0); + + assert(pthread_create(&t, NULL, func, NULL) == 0); + + Sleep(2000); + + assert(pthread_mutex_unlock(&mutex1) == 0); + + assert(washere == 1); + return 0; } |