| 0,0 → 1,67 |
|---|
| /* |
| * 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 KERN_SYNCH_H_ |
| #define KERN_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 |
| |
| /** @} |
| */ |