glibc/linuxthreads/Examples/ex7.c

41 lines
802 B
C

/* This is a test of the special shutdown that occurs
when all threads, including the main one, call
pthread_exit(). It demonstrates that atexit
handlers are properly called, and that the
output is properly flushed even when stdout is
redirected to a file, and therefore fully buffered. */
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#define NTHREADS 20 /* number of threads */
static void *thread(void *arg)
{
printf("thread terminating\n");
return 0;
}
void cleanup(void)
{
printf("atexit handler called\n");
}
int main(void)
{
int i;
atexit(cleanup);
for (i = 0; i < NTHREADS; i++) {
pthread_t id;
if (pthread_create(&id, 0, thread, 0) != 0) {
fprintf(stderr, "pthread_create failed\n");
abort();
}
}
pthread_exit(0);
}