Computers and Technology, 01.07.2020 15:01, gharrell03
Read the man page of the following functions pthread_create, pthread_join. Read the man page of the following functions pthread_mutex_init, pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_unlock, pthread_mutex_destroy. For each task, fullfill the requirements provided in the comments, or fill the blank. Compile the code and make sure it is executable. What is the output of the code?
#include
#include
#include
void *functionc ();
pthread mutex t mutex1 PTHREAD MUTEX INITIALIZER
int counter = 0 ;
main ()
int rc1, rc2
pthread_t thread1, thread2;
* Create independent threads each of which will execute functionC*/
if ((rc1-pthread_create (&thread1, NULL,
printf ( "Thread creation failed : %d\n", rc1 ) ; , NULL))) if (( rc2-pthread_create (&thread2, NULL, , NULL)))
printf ( "Thread creation failed : %d\n" , rc2 ) ;
pthread_join ( pthread_join ( return (0); NULL) , NULL);
void *functionc () (
pthread_mutex_lock (
counter++
printf ( "Counter value : %d\n" , counter) ;
pthread mutex_unlock
}
Answers: 2
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