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#ifndef __ALT_SEM_H__

#define __ALT_SEM_H__

/******************************************************************************

*                                                                             *

* License Agreement                                                           *

*                                                                             *

* Copyright (c) 2004 Altera Corporation, San Jose, California, USA.           *

* All rights reserved.                                                        *

*                                                                             *

* Permission is hereby granted, free of charge, to any person obtaining a     *

* copy of this software and associated documentation files (the "Software"),  *

* to deal in the Software without restriction, including without limitation   *

* the rights to use, copy, modify, merge, publish, distribute, sublicense,    *

* and/or sell copies of the Software, and to permit persons to whom the       *

* Software is furnished to do so, subject to the following conditions:        *

*                                                                             *

* The above copyright notice and this permission notice shall be included in  *

* all copies or substantial portions of the Software.                         *

*                                                                             *

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  *

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,    *

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *

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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER         *

* DEALINGS IN THE SOFTWARE.                                                   *

*                                                                             *

* This agreement shall be governed in all respects by the laws of the State   *

* of California and by the laws of the United States of America.              *

*                                                                             *

* Altera does not recommend, suggest or require that this reference design    *

* file be used in conjunction or combination with any other product.          *

******************************************************************************/

/******************************************************************************

*                                                                             *

* THIS IS A LIBRARY READ-ONLY SOURCE FILE. DO NOT EDIT.                       *

*                                                                             *

******************************************************************************/

/*

 * This header provides macro definitions that can be used to create and use

 * semaphores. These macros can be used in both a uC/OS-II based environment,

 * and a single threaded HAL based environment.

 *

 * The motivation for these macros is to allow code to be developed which is

 * thread safe under uC/OS-II, but incurs no additional overhead when used in a

 * single threaded HAL environment.

 *

 * In the case of a single threaded HAL environment, they compile to

 * "do nothing" directives, which ensures they do not contribute to the final

 * executable.

 *

 * The following macros are available:

 *

 * ALT_SEM        - Create a semaphore instance.

 * ALT_EXTERN_SEM - Create a reference to an external semaphore instance.

 * ALT_STATIC_SEM - Create a static semaphore instance.

 * ALT_SEM_CREATE - Initialise a semaphore.

 * ALT_SEM_PEND   - Pend on a semaphore.

 * ALT_SEM_POST   - Increment a semaphore.

 *

 * Input arguments and return codes are all consistant with the equivalent

 * uC/OS-II function.

 *

 * It's important to be careful in the use of the macros: ALT_SEM,

 * ALT_EXTERN_SEM, and ALT_STATIC_SEM. In these three cases the semi-colon is

 * included in the macro definition; so, for example, you should use:

 *

 * ALT_SEM(mysem)

 *

 * not:

 *

 * ALT_SEM(mysem);

 *

 * The inclusion of the semi-colon has been necessary to ensure the macros can

 * compile with no warnings when used in a single threaded HAL environment.

 *

 */

#include "priv/alt_no_error.h"

#define ALT_SEM(sem)

#define ALT_EXTERN_SEM(sem)

#define ALT_STATIC_SEM(sem)

#define ALT_SEM_CREATE(sem, value) alt_no_error () 

#define ALT_SEM_PEND(sem, timeout) alt_no_error ()

#define ALT_SEM_POST(sem) alt_no_error ()

#ifndef ALT_SINGLE_THREADED

#define ALT_SINGLE_THREADED

#endif

#endif /* __ALT_SEM_H__ */