Subversion Repositories HelenOS-historic

Rev

Rev 534 | Rev 1502 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2
 * Copyright (C) 2001-2004 Jakub Jermar
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
#ifndef __SYNCH_H__
30
#define __SYNCH_H__
31
 
411 jermar 32
#define SYNCH_NO_TIMEOUT    0   /**< Request with no timeout. */
410 jermar 33
#define SYNCH_BLOCKING      0   /**< Blocking operation request. */
34
#define SYNCH_NON_BLOCKING  1   /**< Non-blocking operation request. */
1 jermar 35
 
410 jermar 36
#define ESYNCH_WOULD_BLOCK  1   /**< Could not satisfy the request without going to sleep. */
37
#define ESYNCH_TIMEOUT      2   /**< Timeout occurred. */
1156 jermar 38
#define ESYNCH_INTERRUPTED  4   /**< Sleep was interrupted. */
39
#define ESYNCH_OK_ATOMIC    8   /**< Operation succeeded without sleeping. */
40
#define ESYNCH_OK_BLOCKED   16  /**< Operation succeeded and did sleep. */
1 jermar 41
 
1156 jermar 42
#define SYNCH_FAILED(rc)    ((rc) & (ESYNCH_WOULD_BLOCK | ESYNCH_TIMEOUT | ESYNCH_INTERRUPTED))
1 jermar 43
#define SYNCH_OK(rc)        ((rc) & (ESYNCH_OK_ATOMIC | ESYNCH_OK_BLOCKED))
44
 
45
#endif