/* posix-thread.c - GPGRT thread functions for POSIX systems

   Copyright (C) 2014 g10 Code GmbH

   This file is part of libgpg-error.

   libgpg-error 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.

   libgpg-error 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/>.

 */

#if HAVE_CONFIG_H

#include <config.h>

#endif

#ifdef HAVE_W32_SYSTEM

# error This module may not be build for Windows.

#endif

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <errno.h>

#include <unistd.h>  /* Get posix option macros.  */

#if USE_POSIX_THREADS

# ifdef _POSIX_PRIORITY_SCHEDULING

#  include <sched.h>

# endif

#elif USE_SOLARIS_THREADS

# include <thread.h>

#endif

#include "gpgrt-int.h"

#include "thread.h"

gpg_err_code_t

_gpgrt_yield (void)

{

#if USE_POSIX_THREADS

# ifdef _POSIX_PRIORITY_SCHEDULING

  _gpgrt_pre_syscall ();

  sched_yield ();

  _gpgrt_post_syscall ();

# else

  return GPG_ERR_NOT_SUPPORTED;

# endif

#elif USE_SOLARIS_THREADS

  _gpgrt_pre_syscall ();

  thr_yield ();

  _gpgrt_post_syscall ();

#else

  return GPG_ERR_NOT_SUPPORTED;

#endif

  return 0;

}