Files
clang-p2996/compiler-rt/test/tsan/fork_deadlock.cc
Kuba Brecka 79cb643b20 [tsan] Remove long sleeps from fork tests
On one of our testing machines, we're running the tests under heavy load, and especially in the fork-based TSan tests, we're seeing timeouts when a test uses sleep(10), assuming that calling fork() on another thread will finish sooner than that. This patch removes a timeout and makes another one longer.

Differential Revision: http://reviews.llvm.org/D18476

llvm-svn: 265666
2016-04-07 12:10:28 +00:00

39 lines
787 B
C++

// RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=atexit_sleep_ms=50 %run %t 2>&1 | FileCheck %s
#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;
}
int main() {
barrier_init(&barrier, 2);
pthread_t th1;
pthread_create(&th1, 0, incrementer, 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