48 lines
1008 B
C++
48 lines
1008 B
C++
// 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
|
|
|