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+#ifndef CYGONCE_POSIX_MUTEX_H
+#define CYGONCE_POSIX_MUTEX_H
+//=============================================================================
+//
+// mutex.h
+//
+// POSIX mutex and condition variable function definitions
+//
+//=============================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos 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 2 or (at your option) any later version.
+//
+// eCos 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.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): nickg,jlarmour
+// Contributors:
+// Date: 2001-09-10
+// Purpose: POSIX mutex and condition variable function definitions
+// Description: This header contains POSIX API definitions for mutexes
+// and cond vars.
+//
+// Usage: #include <pthread.h>
+//
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <pkgconf/posix.h>
+
+#include <sys/types.h> // pthread_* types
+
+//=============================================================================
+// Mutexes
+
+//-----------------------------------------------------------------------------
+// Mutex attributes manipulation functions
+
+// Initialize attribute object
+externC int pthread_mutexattr_init ( pthread_mutexattr_t *attr);
+
+// Destroy attribute object
+externC int pthread_mutexattr_destroy ( pthread_mutexattr_t *attr);
+
+#if defined(_POSIX_THREAD_PRIO_INHERIT) || defined(_POSIX_THREAD_PRIO_PROTECT)
+
+// Set priority inversion protection protocol
+externC int pthread_mutexattr_setprotocol ( pthread_mutexattr_t *attr,
+ int protocol);
+
+// Get priority inversion protection protocol
+externC int pthread_mutexattr_getprotocol ( pthread_mutexattr_t *attr,
+ int *protocol);
+
+#if defined(_POSIX_THREAD_PRIO_PROTECT)
+
+// Set priority for priority ceiling protocol
+externC int pthread_mutexattr_setprioceiling ( pthread_mutexattr_t *attr,
+ int prioceiling);
+
+// Get priority for priority ceiling protocol
+externC int pthread_mutexattr_getprioceiling ( pthread_mutexattr_t *attr,
+ int *prioceiling);
+
+// Set priority ceiling of given thread, returning old ceiling.
+externC int pthread_mutex_setprioceiling( pthread_mutex_t *mutex,
+ int prioceiling,
+ int *old_ceiling);
+
+// Get priority ceiling of given thread
+externC int pthread_mutex_getprioceiling( pthread_mutex_t *mutex,
+ int *prioceiling);
+#endif
+
+#endif
+
+//-----------------------------------------------------------------------------
+// Mutex functions
+
+// Initialize mutex. If mutex_attr is NULL, use default attributes.
+externC int pthread_mutex_init (pthread_mutex_t *mutex,
+ const pthread_mutexattr_t *mutex_attr);
+
+// Destroy mutex.
+externC int pthread_mutex_destroy (pthread_mutex_t *mutex);
+
+// Lock mutex, waiting for it if necessary.
+externC int pthread_mutex_lock (pthread_mutex_t *mutex);
+
+// Try to lock mutex.
+externC int pthread_mutex_trylock (pthread_mutex_t *mutex);
+
+
+// Unlock mutex.
+externC int pthread_mutex_unlock (pthread_mutex_t *mutex);
+
+
+
+//=============================================================================
+// Condition Variables
+
+//-----------------------------------------------------------------------------
+// Attribute manipulation functions
+// We do not actually support any attributes at present, so these do nothing.
+
+// Initialize condition variable attributes
+externC int pthread_condattr_init (pthread_condattr_t *attr);
+
+// Destroy condition variable attributes
+externC int pthread_condattr_destroy (pthread_condattr_t *attr);
+
+//-----------------------------------------------------------------------------
+// Condition variable functions
+
+// Initialize condition variable.
+externC int pthread_cond_init (pthread_cond_t *cond,
+ const pthread_condattr_t *attr);
+
+// Destroy condition variable.
+externC int pthread_cond_destroy (pthread_cond_t *cond);
+
+// Wake up one thread waiting for condition variable
+externC int pthread_cond_signal (pthread_cond_t *cond);
+
+// Wake up all threads waiting for condition variable
+externC int pthread_cond_broadcast (pthread_cond_t *cond);
+
+// Block on condition variable until signalled. The mutex is
+// assumed to be locked before this call, will be unlocked
+// during the wait, and will be re-locked on wakeup.
+externC int pthread_cond_wait (pthread_cond_t *cond,
+ pthread_mutex_t *mutex);
+
+// Block on condition variable until signalled, or the timeout expires.
+externC int pthread_cond_timedwait (pthread_cond_t *cond,
+ pthread_mutex_t *mutex,
+ const struct timespec *abstime);
+
+
+//-----------------------------------------------------------------------------
+#endif // ifndef CYGONCE_POSIX_MUTEX_H
+// End of mutex.h