blob: dfcab13effe2563cba932b346283d951c04c133f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*--------------------------------------------------------------------*/
/*--- Private scheduler header. priv_sema.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2009 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PRIV_SEMA_H
#define __PRIV_SEMA_H
/* Not really a semaphore, but use a pipe for a token-passing scheme */
typedef struct {
Int pipe[2];
Int owner_lwpid; /* who currently has it */
} vg_sema_t;
// Nb: this may be OS-specific, but let's not factor it out until we
// implement an OS port for which this isn't ok.
void ML_(sema_init) ( vg_sema_t *sema );
void ML_(sema_deinit) ( vg_sema_t *sema );
void ML_(sema_down) ( vg_sema_t *sema );
void ML_(sema_up) ( vg_sema_t *sema );
#endif // __PRIV_SEMA_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
|
