1 /** Test interception of the various pthread_timed*lock() and pthread_try*lock() 2 * functions. If any of these are not intercepted, an error message will be 3 * printed at unlock time. 4 */ 5 6 7 /* Needed for older glibc's (2.3 and older, at least) who don't 8 otherwise "know" about pthread_rwlock_anything or about 9 PTHREAD_MUTEX_RECURSIVE (amongst things). */ 10 11 #define _GNU_SOURCE 1 12 13 #include "../../config.h" 14 #include <stdio.h> 15 #include <assert.h> 16 #include <pthread.h> 17 18 19 int main(int argc, char** argv) 20 { 21 int r; 22 pthread_mutex_t mutex; 23 pthread_rwlock_t rwlock; 24 struct timespec abs_timeout; 25 26 time(&abs_timeout.tv_sec); 27 abs_timeout.tv_nsec = 0; 28 abs_timeout.tv_sec += 10; 29 30 r = pthread_rwlock_init(&rwlock, NULL); assert(r == 0); 31 fprintf(stderr, "Locking rwlock via pthread_rwlock_wrlock().\n"); 32 r = pthread_rwlock_wrlock(&rwlock); assert(r == 0); 33 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 34 fprintf(stderr, "Locking rwlock via pthread_rwlock_trywrlock().\n"); 35 r = pthread_rwlock_trywrlock(&rwlock); assert(r == 0); 36 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 37 fprintf(stderr, "Locking rwlock via pthread_rwlock_timedwrlock().\n"); 38 #ifdef HAVE_PTHREAD_RWLOCK_TIMEDWRLOCK 39 r = pthread_rwlock_timedwrlock(&rwlock, &abs_timeout); assert(r == 0); 40 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 41 #endif 42 fprintf(stderr, "Locking rwlock via pthread_rwlock_rdlock().\n"); 43 r = pthread_rwlock_rdlock(&rwlock); assert(r == 0); 44 r = pthread_rwlock_rdlock(&rwlock); assert(r == 0); 45 r = pthread_rwlock_rdlock(&rwlock); assert(r == 0); 46 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 47 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 48 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 49 fprintf(stderr, "Locking rwlock via pthread_rwlock_tryrdlock().\n"); 50 r = pthread_rwlock_tryrdlock(&rwlock); assert(r == 0); 51 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 52 fprintf(stderr, "Locking rwlock via pthread_rwlock_timedrdlock().\n"); 53 #ifdef HAVE_PTHREAD_RWLOCK_TIMEDRDLOCK 54 r = pthread_rwlock_timedrdlock(&rwlock, &abs_timeout); assert(r == 0); 55 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 56 #endif 57 fprintf(stderr, "Attempt to lock for writing recursively (not allowed).\n"); 58 r = pthread_rwlock_wrlock(&rwlock); assert(r == 0); 59 r = pthread_rwlock_wrlock(&rwlock); assert(r != 0); 60 r = pthread_rwlock_unlock(&rwlock); assert(r == 0); 61 r = pthread_rwlock_destroy(&rwlock); assert(r == 0); 62 63 r = pthread_mutex_init(&mutex, NULL); assert(r == 0); 64 fprintf(stderr, "Locking mutex via pthread_mutex_trylock().\n"); 65 r = pthread_mutex_trylock(&mutex); assert(r == 0); 66 r = pthread_mutex_unlock(&mutex); assert(r == 0); 67 fprintf(stderr, "Locking mutex via pthread_mutex_lock().\n"); 68 r = pthread_mutex_lock(&mutex); assert(r == 0); 69 r = pthread_mutex_unlock(&mutex); assert(r == 0); 70 fprintf(stderr, "Locking mutex via pthread_mutex_timedlock().\n"); 71 #ifdef HAVE_PTHREAD_MUTEX_TIMEDLOCK 72 r = pthread_mutex_timedlock(&mutex, &abs_timeout); assert(r == 0); 73 r = pthread_mutex_unlock(&mutex); assert(r == 0); 74 #endif 75 r = pthread_mutex_destroy(&mutex); 76 77 return 0; 78 } 79