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d614a753 | 1 | /* Copyright (C) 2015-2020 Free Software Foundation, Inc. |
ed225df3 | 2 | This file is part of the GNU C Library. |
ed225df3 MS |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
15 | License along with the GNU C Library; if not, see | |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
ed225df3 MS |
17 | |
18 | #include <errno.h> | |
19 | #include <pthread.h> | |
20 | #include <stdio.h> | |
21 | #include <string.h> | |
22 | ||
23 | ||
24 | static pthread_once_t once = PTHREAD_ONCE_INIT; | |
25 | ||
26 | // Exception type thrown from the pthread_once init routine. | |
27 | struct OnceException { }; | |
28 | ||
29 | // Test iteration counter. | |
30 | static int niter; | |
31 | ||
32 | static void | |
33 | init_routine (void) | |
34 | { | |
35 | if (niter < 2) | |
36 | throw OnceException (); | |
37 | } | |
38 | ||
39 | // Verify that an exception thrown from the pthread_once init routine | |
40 | // is propagated to the pthread_once caller and that the function can | |
41 | // be subsequently invoked to attempt the initialization again. | |
42 | static int | |
43 | do_test (void) | |
44 | { | |
45 | int result = 1; | |
46 | ||
47 | // Repeat three times, having the init routine throw the first two | |
48 | // times and succeed on the final attempt. | |
49 | for (niter = 0; niter != 3; ++niter) { | |
50 | ||
51 | try { | |
52 | int rc = pthread_once (&once, init_routine); | |
53 | if (rc) | |
54 | fprintf (stderr, "pthread_once failed: %i (%s)\n", | |
55 | rc, strerror (rc)); | |
56 | ||
57 | if (niter < 2) | |
58 | fputs ("pthread_once unexpectedly returned without" | |
59 | " throwing an exception", stderr); | |
60 | } | |
61 | catch (OnceException) { | |
62 | if (1 < niter) | |
63 | fputs ("pthread_once unexpectedly threw", stderr); | |
64 | result = 0; | |
65 | } | |
66 | catch (...) { | |
67 | fputs ("pthread_once threw an unknown exception", stderr); | |
68 | } | |
69 | ||
70 | // Abort the test on the first failure. | |
71 | if (result) | |
72 | break; | |
73 | } | |
74 | ||
75 | return result; | |
76 | } | |
77 | ||
1f645571 FW |
78 | // The test currently hangs and is XFAILed. Reduce the timeout. |
79 | #define TIMEOUT 1 | |
ed225df3 MS |
80 | #define TEST_FUNCTION do_test () |
81 | #include "../test-skeleton.c" |