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// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
// Test that pause loop handles signals.
#include "test.h"
#include <signal.h>
#include <errno.h>
void handler(int signum) {
write(2, "DONE\n", 5);
_exit(0);
}
void *thread(void *arg) {
for (;;)
pause();
return 0;
}
int main(int argc, char** argv) {
struct sigaction act = {};
act.sa_handler = &handler;
if (sigaction(SIGUSR1, &act, 0)) {
fprintf(stderr, "sigaction failed %d\n", errno);
return 1;
}
pthread_t th;
pthread_create(&th, 0, thread, 0);
sleep(1); // give it time to block in pause
pthread_kill(th, SIGUSR1);
sleep(10); // signal handler must exit the process while we are here
return 0;
}
// CHECK: DONE
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