#include <pthread.h>
void *thread1(void *ptr);
void *thread2(void *ptr);
pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
void *thread1(void *ptr) {
pthread_mutex_lock(&m1);
/* do some stuff that require locking mutex1
*/
pthread_mutex_lock(&m2);
/* do some stuff that require locking mutex2
*/
pthread_mutex_unlock(&m2);
pthread_mutex_unlock(&m1);
return NULL;
}
void *thread2(void *ptr) {
pthread_mutex_lock(&m2);
/* do some stuff that require locking mutex2
*/
pthread_mutex_lock(&m1);
/* do some stuff that require locking mutex1
*/
pthread_mutex_unlock(&m1);
pthread_mutex_unlock(&m2);
return NULL;
}
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