source: trunk/kernel/syscalls/shared_include/shared_semaphore.h @ 473

Last change on this file since 473 was 469, checked in by alain, 4 years ago

1) Introduce the libsemaphore library.
2) Introduce a small libmath library, required by the "fft" application..
3) Introduce the multithreaded "fft" application.
4) Fix a bad synchronisation bug in the Copy-On-Write mechanism.

File size: 1.6 KB
RevLine 
[469]1/*
2 * shared_semaphore.h - Shared mnemonics used by the semaphore related syscalls.
3 *
4 * Author  Alain Greiner (2016,2017,2018)
5 *
6 * Copyright (c) UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH.
9 *
10 * ALMOS-MKH is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2.0 of the License.
13 *
14 * ALMOS-MKH is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#ifndef _SHARED_SEMAPHORE_H_
25#define _SHARED_SEMAPHORE_H_
26
27/*******************************************************************************************
28 * This typedef defines the unnamed POSIX semaphore.
29 ******************************************************************************************/
30
31typedef unsigned int      sem_t;
32
33/*******************************************************************************************
34 * This enum defines the operation mnemonics for unnamed  POSIX semaphores.
35 ******************************************************************************************/
36
37typedef enum
38{
39        SEM_INIT,
40        SEM_DESTROY,
41        SEM_GETVALUE,
42        SEM_WAIT,
43        SEM_POST,
44} 
45sem_operation_t;
46
47#endif  // _SEMAPHORE_H_
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