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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/* This file is part of the Zebra server.
Copyright (C) Index Data
Zebra 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, or (at your option) any later
version.
Zebra 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef ZEBRA_LOCK_H
#define ZEBRA_LOCK_H
#ifdef WIN32
#include <windows.h>
#endif
#if YAZ_POSIX_THREADS
#include <pthread.h>
#endif
#include <yaz/yconfig.h>
YAZ_BEGIN_CDECL
typedef struct {
#ifdef WIN32
CRITICAL_SECTION mutex;
#else
# if YAZ_POSIX_THREADS
pthread_mutex_t mutex;
# else
int dummy;
# endif
#endif
int state;
} Zebra_mutex;
YAZ_EXPORT int zebra_mutex_init (Zebra_mutex *p);
YAZ_EXPORT int zebra_mutex_destroy (Zebra_mutex *p);
YAZ_EXPORT int zebra_mutex_lock (Zebra_mutex *p);
YAZ_EXPORT int zebra_mutex_unlock (Zebra_mutex *p);
typedef struct {
int readers_reading;
int writers_writing;
#if YAZ_POSIX_THREADS
pthread_mutex_t mutex;
pthread_cond_t lock_free;
#endif
} Zebra_lock_rdwr;
YAZ_EXPORT int zebra_lock_rdwr_init (Zebra_lock_rdwr *p);
YAZ_EXPORT int zebra_lock_rdwr_destroy (Zebra_lock_rdwr *p);
YAZ_EXPORT int zebra_lock_rdwr_rlock (Zebra_lock_rdwr *p);
YAZ_EXPORT int zebra_lock_rdwr_wlock (Zebra_lock_rdwr *p);
YAZ_EXPORT int zebra_lock_rdwr_runlock (Zebra_lock_rdwr *p);
YAZ_EXPORT int zebra_lock_rdwr_wunlock (Zebra_lock_rdwr *p);
typedef struct {
#if YAZ_POSIX_THREADS
pthread_mutex_t mutex;
pthread_cond_t cond;
#else
int dummy;
#endif
} Zebra_mutex_cond;
YAZ_EXPORT int zebra_mutex_cond_init (Zebra_mutex_cond *p);
YAZ_EXPORT int zebra_mutex_cond_destroy (Zebra_mutex_cond *p);
YAZ_EXPORT int zebra_mutex_cond_lock (Zebra_mutex_cond *p);
YAZ_EXPORT int zebra_mutex_cond_unlock (Zebra_mutex_cond *p);
YAZ_EXPORT int zebra_mutex_cond_wait (Zebra_mutex_cond *p);
YAZ_EXPORT int zebra_mutex_cond_signal (Zebra_mutex_cond *p);
YAZ_END_CDECL
#endif
/*
* Local variables:
* c-basic-offset: 4
* c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
|
