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// RUN: %clangxx_tsan -O1 %s -o %t && TSAN_OPTIONS="atexit_sleep_ms=50" %run %t 2>&1 | FileCheck %s
// UNSUPPORTED: darwin
#include "test.h"
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
int counter;
static void *incrementer(void *p) {
for (;;)
__sync_fetch_and_add(&counter, 1);
return 0;
}
static void *watchdog(void *p) {
sleep(100); // is not intended to exit
fprintf(stderr, "timed out after 100 seconds\n");
exit(1);
return 0;
}
int main() {
barrier_init(&barrier, 2);
pthread_t th1, th2;
pthread_create(&th1, 0, incrementer, 0);
pthread_create(&th2, 0, watchdog, 0);
for (int i = 0; i < 10; i++) {
switch (fork()) {
default: // parent
while (wait(0) < 0) {}
fprintf(stderr, ".");
break;
case 0: // child
__sync_fetch_and_add(&counter, 1);
exit(0);
break;
case -1: // error
fprintf(stderr, "failed to fork (%d)\n", errno);
exit(1);
}
}
fprintf(stderr, "OK\n");
}
// CHECK: OK
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