You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
123 lines
2.1 KiB
123 lines
2.1 KiB
/*
|
|
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 2005-2007
|
|
*/
|
|
|
|
#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
|