Linux Conditional Variable routine

# Include <br/> pthread_mutex_t mutex = pthread_mutex_initializer; <br/> pthread_cond_t cond = pthread_cond_initializer; <br/> void * thread1 (void *); <br/> void * thread2 (void *); <br/> int I = 1; <br/> main (void) <br/>{< br/> pthread_t T_A; <br/> pthread_t T_ B; <br/> pthread_create (& T_A, null, thread1, (void *) null ); <br/> pthread_create (& T_ B, null, thread2), (void *) null); <br/> pthread_join (T_ B, n Ull); <br/> pthread_mutex_destroy (& mutex); <br/> pthread_cond_destroy (& Cond); <br/> exit (0 ); <br/>}< br/> void * thread1 (void * junk) <br/>{< br/> for (I = 1; I <= 9; I ++) <br/>{< br/> pthread_mutex_lock (& mutex); <br/> if (I % 3 = 0) <br/> pthread_cond_signal (& Cond); <br/> else <br/> printf ("thead1: % d/N", I ); <br/> pthread_mutex_unlock (& mutex); <br/> printf ("up unlock mutex/N"); <br/> usleep (50 ); <br/>}< br/>} <Br/> void * thread2 (void * junk) <br/> {<br/> while (I <9) <br/>{< br/> pthread_mutex_lock (& mutex); <br/> if (I % 3! = 0) <br/> pthread_cond_wait (& cond, & mutex); <br/> printf ("thread2: % d/N", I ); <br/> pthread_mutex_unlock (& mutex); <br/> printf ("Down ulock mutex/N"); <br/> usleep (50); <br/>}

 

 

 

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