source: mainline/kernel/generic/include/synch/syswaitq.h@ aca97582

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since aca97582 was 0b8fad2, checked in by Jakub Jermar <jakub@…>, 7 years ago

Make user waitq more generic

By allowing SYS_WAITQ_SLEEP to specify flags, the implementation needn't
hardcode the use of SYNCH_FLAGS_FUTEX, resulting in a more generic
synchronization primitive usable from userspace.

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 * Copyright (c) 2018 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/** @addtogroup kernel_sync
30 * @{
31 */
32/** @file
33 */
34
35#ifndef KERN_SYS_WAITQ_H_
36#define KERN_SYS_WAITQ_H_
37
38#include <typedefs.h>
39#include <abi/cap.h>
40
41extern void sys_waitq_init(void);
42
43extern void sys_waitq_task_cleanup(void);
44
45extern sys_errno_t sys_waitq_create(cap_waitq_handle_t *);
46extern sys_errno_t sys_waitq_sleep(cap_waitq_handle_t, uint32_t, unsigned int);
47extern sys_errno_t sys_waitq_wakeup(cap_waitq_handle_t);
48extern sys_errno_t sys_waitq_destroy(cap_waitq_handle_t);
49
50#endif
51
52/** @}
53 */
Note: See TracBrowser for help on using the repository browser.