blob: 1f687c94e40668e9f06f37d2380e4c0c0d3e9758 (
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
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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
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., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2005-2006
*/
#ifndef LOCK_H
#define LOCK_H
#include "sesman.h"
#define SESMAN_LOCK_FORK_BLOCKER 1
#define SESMAN_LOCK_FORK_WAITING 0
/**
*
* @brief initializes all the locks
*
*/
void DEFAULT_CC
lock_init();
/**
*
* @brief acquires the lock for the session chain
*
*/
void DEFAULT_CC
lock_chain_acquire();
/**
*
* @brief releases the sessiona chain lock
*
*/
void DEFAULT_CC
lock_chain_release();
/**
*
* @brief acquires config lock
*
*/
void DEFAULT_CC
lock_cfg_acquire();
/**
*
* @brief releases config lock
*
*/
void DEFAULT_CC
lock_cfg_release();
/**
*
* @brief request the socket lock
*
*/
void DEFAULT_CC
lock_socket_acquire();
/**
*
* @brief releases the socket lock
*
*/
void DEFAULT_CC
lock_socket_release();
/**
*
* @brief requires to fork a new child process
*
*/
void DEFAULT_CC
lock_fork_request();
/**
*
* @brief releases a fork() request
*
*/
void DEFAULT_CC
lock_fork_release();
/**
*
* @brief starts a section that is critical for forking
*
* starts a section that is critical for forking, that is noone can fork()
* while i'm in a critical section. But if someone wanted to fork we have
* to wait until he finishes with lock_fork_release()
*
* @return
*
*/
int DEFAULT_CC
lock_fork_critical_section_start();
/**
*
* @brief closes the critical section
*
*/
void DEFAULT_CC
lock_fork_critical_section_end(int blocking);
#endif
|
