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/* Threads compatibility routines for libgcc2.  */

/* Compile this one with gcc.  */

/* Copyright (C) 2003, 2004, 2009 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License as published by the Free

Software Foundation; either version 3, or (at your option) any later

version.

GCC 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 General Public License

for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

<http://www.gnu.org/licenses/>.  */

#include "gthr-gnat.h"

#ifndef HIDE_EXPORTS

#pragma GCC visibility push(default)

#endif

#ifdef __cplusplus

#define UNUSED(x)

#else

#define UNUSED(x) x __attribute__((unused))

#endif

void __gnat_default_lock (void);

void __gnat_default_unlock (void);

void

__gnat_default_lock (void)

{

  return;

}

void

__gnat_default_unlock (void)

{

  return;

}

static void (*__gnat_task_lock) (void) = *__gnat_default_lock;

static void (*__gnat_task_unlock) (void) = *__gnat_default_unlock;

 void

__gnat_install_locks (void (*lock) (void), void (*unlock) (void))

{

  __gnat_task_lock = lock;

  __gnat_task_unlock = unlock;

}

int

__gthread_active_p (void)

{

  return 0;

}

int

__gthread_mutex_lock (__gthread_mutex_t * UNUSED (mutex))

{

  __gnat_task_lock ();

  return 0;

}

int

__gthread_mutex_unlock (__gthread_mutex_t * UNUSED (mutex))

{

  __gnat_task_unlock ();

  return 0;

}

#ifndef HIDE_EXPORTS

#pragma GCC visibility pop

#endif