File: on_exit.cpp

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (36 lines) | stat: -rw-r--r-- 813 bytes parent folder | download | duplicates (24) 
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
 
// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s

// on_exit() is not available on Darwin.
// UNSUPPORTED: darwin

#include "test.h"

volatile long global;

void *thread(void *x) {
  global++;
  barrier_wait(&barrier);
  return nullptr;
}

void on_exit_callback(int status, void *arg) {
  fprintf(stderr, "on_exit_callback(%d, %lu)\n", status, (long)arg);
  global++;
}

int main() {
  on_exit(on_exit_callback, (void *)42l);
  barrier_init(&barrier, 2);
  pthread_t th;
  pthread_create(&th, nullptr, thread, nullptr);
  pthread_detach(th);
  barrier_wait(&barrier);
  return 2;
}

// CHECK: on_exit_callback(2, 42)
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK:   Write of size 8
// CHECK:     #0 on_exit_callback
// CHECK:     #1 on_exit_callback_installed_at
// CHECK:     #2 main