File: fork_atexit.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (37 lines) | stat: -rw-r--r-- 726 bytes parent folder | download | duplicates (37) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
// RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=atexit_sleep_ms=50 %run %t 2>&1 | FileCheck %s
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>

void foo() {
  fprintf(stderr, "CHILD ATEXIT\n");
}

void *worker(void *unused) {
  return 0;
}

int main() {
  pthread_t t;
  pthread_create(&t, NULL, worker, NULL);
  int pid = fork();
  if (pid == 0) {
    // child
    atexit(foo);
    fprintf(stderr, "CHILD DONE\n");
  } else {
    pthread_join(t, 0);
    if (waitpid(pid, 0, 0) == -1) {
      perror("waitpid");
      exit(1);
    }
    fprintf(stderr, "PARENT DONE\n");
  }
}

// CHECK: CHILD DONE
// CHECK: CHILD ATEXIT
// CHECK: PARENT DONE