mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/* Copyright (C) 2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
|
|
static pthread_once_t once = PTHREAD_ONCE_INIT;
|
|
|
|
// Exception type thrown from the pthread_once init routine.
|
|
struct OnceException { };
|
|
|
|
// Test iteration counter.
|
|
static int niter;
|
|
|
|
static void
|
|
init_routine (void)
|
|
{
|
|
if (niter < 2)
|
|
throw OnceException ();
|
|
}
|
|
|
|
// Verify that an exception thrown from the pthread_once init routine
|
|
// is propagated to the pthread_once caller and that the function can
|
|
// be subsequently invoked to attempt the initialization again.
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int result = 1;
|
|
|
|
// Repeat three times, having the init routine throw the first two
|
|
// times and succeed on the final attempt.
|
|
for (niter = 0; niter != 3; ++niter) {
|
|
|
|
try {
|
|
int rc = pthread_once (&once, init_routine);
|
|
if (rc)
|
|
fprintf (stderr, "pthread_once failed: %i (%s)\n",
|
|
rc, strerror (rc));
|
|
|
|
if (niter < 2)
|
|
fputs ("pthread_once unexpectedly returned without"
|
|
" throwing an exception", stderr);
|
|
}
|
|
catch (OnceException) {
|
|
if (1 < niter)
|
|
fputs ("pthread_once unexpectedly threw", stderr);
|
|
result = 0;
|
|
}
|
|
catch (...) {
|
|
fputs ("pthread_once threw an unknown exception", stderr);
|
|
}
|
|
|
|
// Abort the test on the first failure.
|
|
if (result)
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|