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/*
* Copyright (c) 2001-2004 Jakub Jermar
* 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (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.
*/
/** @addtogroup sync
* @{
*/
/** @file
*/
#ifndef ABI_SYNCH_H_
#define ABI_SYNCH_H_
/** Request with no timeout. */
#define SYNCH_NO_TIMEOUT 0
/** No flags specified. */
#define SYNCH_FLAGS_NONE 0
/** Non-blocking operation request. */
#define SYNCH_FLAGS_NON_BLOCKING (1 << 0)
/** Interruptible operation. */
#define SYNCH_FLAGS_INTERRUPTIBLE (1 << 1)
/** Could not satisfy the request without going to sleep. */
#define ESYNCH_WOULD_BLOCK 1
/** Timeout occurred. */
#define ESYNCH_TIMEOUT 2
/** Sleep was interrupted. */
#define ESYNCH_INTERRUPTED 4
/** Operation succeeded without sleeping. */
#define ESYNCH_OK_ATOMIC 8
/** Operation succeeded and did sleep. */
#define ESYNCH_OK_BLOCKED 16
#define SYNCH_FAILED(rc) \
((rc) & (ESYNCH_WOULD_BLOCK | ESYNCH_TIMEOUT | ESYNCH_INTERRUPTED))
#define SYNCH_OK(rc) \
((rc) & (ESYNCH_OK_ATOMIC | ESYNCH_OK_BLOCKED))
#endif
/** @}
*/
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