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//============================================================
//
//  minisync.c - Minimal core synchronization functions
//
//============================================================
//
//  Copyright Aaron Giles
//  All rights reserved.
//
//  Redistribution and use in source and binary forms, with or 
//  without modification, are permitted provided that the 
//  following conditions are met:
//
//    * Redistributions of source code must retain the above 
//      copyright notice, this list of conditions and the 
//      following disclaimer.
//	  * Redistributions in binary form must reproduce the 
//      above copyright notice, this list of conditions and 
//      the following disclaimer in the documentation and/or 
//      other materials provided with the distribution.
//	  * Neither the name 'MAME' nor the names of its 
//      contributors may be used to endorse or promote 
//      products derived from this software without specific 
//      prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND 
//  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
//  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
//  EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT, 
//  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
//  DAMAGE (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
//  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
//  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
//  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
//  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 
//  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//============================================================

#include "osdcore.h"


//============================================================
//  osd_lock_alloc
//============================================================

osd_lock *osd_lock_alloc(void)
{
	// the minimal implementation does not support threading
	// just return a dummy value here
	return (osd_lock *)1;
}


//============================================================
//  osd_lock_acquire
//============================================================

void osd_lock_acquire(osd_lock *lock)
{
	// the minimal implementation does not support threading
	// the acquire always "succeeds"
}


//============================================================
//  osd_lock_try
//============================================================

int osd_lock_try(osd_lock *lock)
{
	// the minimal implementation does not support threading
	// the acquire always "succeeds"
	return TRUE;
}


//============================================================
//  osd_lock_release
//============================================================

void osd_lock_release(osd_lock *lock)
{
	// the minimal implementation does not support threading
	// do nothing here
}


//============================================================
//  osd_lock_free
//============================================================

void osd_lock_free(osd_lock *lock)
{
	// the minimal implementation does not support threading
	// do nothing here
}