glibc/tests/Sanity/basic-linking-sanity/lpthread.c
Sergey Kolosov ab4bc8a24e Extend the test coverage
Move some of the RHEL QE testcases upstream to Fedora.
2022-05-31 09:29:27 +02:00

47 lines
871 B
C

#include <pthread.h>
#include <stdio.h>
FILE *fp;
pthread_mutex_t mutech = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
int counter = 0;
void *one(void *arg){
pthread_mutex_lock(&mutech);
while (counter == 0)
pthread_cond_wait(&cond, &mutech);
counter = 2;
fprintf(fp, "Thread 1 run\n");
pthread_mutex_unlock(&mutech);
pthread_cond_signal(&cond);
}
void *two(void *arg){
pthread_mutex_lock(&mutech);
while(counter == 1)
pthread_cond_wait(&cond, &mutech);
counter = 1;
fprintf(fp, "Thread 2 run\n");
pthread_mutex_unlock(&mutech);
pthread_cond_signal(&cond);
}
int main(){
fp = fopen("lpthread.out", "w");
pthread_t on;
pthread_t tw;
pthread_create(&on, NULL, one, NULL);
pthread_create(&tw, NULL, two, NULL);
pthread_join(tw, NULL);
pthread_join(on, NULL);
close(fp);
return 0;
}