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7b089321
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Date :
2025-01-01T09:24:36
maint: run 'make update-copyright'
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/* ISO C 11 once-only initialization.
Copyright (C) 2005-2025 Free Software Foundation, Inc.
This file 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.
This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2005, 2019.
Based on GCC's gthr-posix.h, gthr-posix95.h, gthr-win32.h. */
#include <config.h>
#include <threads.h>
#include <errno.h>
#if defined _WIN32 && ! defined __CYGWIN__
/* Use Windows threads. */
# define WIN32_LEAN_AND_MEAN /* avoid including junk */
# include <windows.h>
# include <stdlib.h>
#else
/* Use POSIX threads. */
# include <pthread.h>
#endif
#if defined _WIN32 && ! defined __CYGWIN__
/* Use Windows threads. */
void
call_once (once_flag *flagp, void (*func) (void))
{
glwthread_once (flagp, func);
}
#else
/* Use POSIX threads. */
void
call_once (once_flag *flagp, void (*func) (void))
{
# if defined __CYGWIN__
/* Verify that once_flag and pthread_once_t are of the same size. */
struct _ { int v [sizeof (once_flag) == sizeof (pthread_once_t) ? 1 : -1]; };
pthread_once ((pthread_once_t *) flagp, func);
# else
pthread_once (flagp, func);
# endif
}
#endif