1 // commit: fb11b6b85e1e01daf17228be32d7f98b47517363 2011-02-19
2 // pthread_exit should call dtors (even in the last thread)
3 #include <stdlib.h>
4 #include <string.h>
5 #include <errno.h>
6 #include <pthread.h>
7 #include <sys/wait.h>
8 #include <unistd.h>
9 #include "test.h"
10
11 #define TEST(r, f) if (((r)=(f))) t_error(#f " failed: %s\n", strerror(r))
12 #define TESTC(c, m) ( (c) || (t_error("%s failed (" m ")\n", #c), 0) )
13
14 static pthread_key_t k;
15 static int data;
16
dtor(void * p)17 static void dtor(void *p)
18 {
19 *(int *)p = 1;
20 }
21
start(void * arg)22 static void *start(void *arg)
23 {
24 if (pthread_setspecific(k, arg))
25 return arg;
26 return 0;
27 }
28
cleanup(void)29 static void cleanup(void)
30 {
31 TESTC(data == 1, "dtor was not run for the last thread");
32 _exit(t_status);
33 }
34
die(void)35 static void die(void)
36 {
37 _exit(1);
38 }
39
main(void)40 int main(void)
41 {
42 pthread_t td;
43 int r, arg=0, pid;
44 void *res;
45
46 // test if atexit handlers are run after pthread_exit
47 // (early musl failed this test)
48 pid = fork();
49 switch (pid) {
50 case -1:
51 t_error("fork failed: %s\n", strerror(errno));
52 return 1;
53 case 0:
54 atexit(die);
55 pthread_exit(0);
56 default:
57 if (waitpid(pid, &r, 0) != pid) {
58 t_error("waitpid failed: %s\n", strerror(errno));
59 return 1;
60 }
61 if (!WIFEXITED(r) || WEXITSTATUS(r) != 1) {
62 t_error("atexit handler was not run after last thread exited"
63 " (exited=%d, signal=%d, status=%d, want exit status=1)\n",
64 WIFEXITED(r), !WIFEXITED(r)&&WIFSIGNALED(r)?WTERMSIG(r):0, WIFEXITED(r)?WEXITSTATUS(r):0);
65 return 1;
66 }
67 }
68
69 // dtor should set tsd (arg and data) from 0 to 1
70 if (atexit(cleanup)) {
71 t_error("atexit failed\n");
72 return 1;
73 }
74 TEST(r, pthread_key_create(&k, dtor));
75 TEST(r, pthread_setspecific(k, &data));
76 TEST(r, pthread_create(&td, 0, start, &arg));
77 TEST(r, pthread_join(td, &res));
78 TESTC(res == 0, "pthread_setspecific failed in thread");
79 TESTC(arg == 1, "dtor failed to run");
80 TESTC(data == 0, "tsd in main thread is corrupted");
81 TESTC(pthread_getspecific(k) == &data, "tsd in main thread is corrupted");
82 pthread_exit(0);
83 }
84