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/*************************************************************************
*
* HTCd - Copyright (C) 1998-2006 Henrik Rydberg
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LOCKH
#define LOCKH
#include <mt/mstring.h>
// OFFERS TWO LOCKING MECHANISMS
void LockFile(const mstring& path,int prot=0660) throw(merror_t);
void UnlockFile(const mstring& path);
// These functions create an exclusive lock on path by
// creating a file path.lock.
// Works well and is the same mechnism used by
// mailing systems.
////////////////////////////////////////////
struct proclock_t {
pid_t pid;
mstring path;
proclock_t(const mstring& p,int prot=0660);
~proclock_t();
};
#define PROCLOCK(p) proclock_t proclock(p)
// The proclock class creates a file named path.lock
// and stores the curent process id in it.
// once the destructor is called in the same
// process, the file is removed.
////////////////////////////////////////////
struct nodelock_t {
pid_t pid;
mstring path;
nodelock_t(const mstring& p,int prot=0660);
~nodelock_t();
};
#define NODELOCK(p) nodelock_t nodelock(p)
// The nodelock class creates a file named path.lock
// and stores the curent network node name in it.
// once the destructor is called in the same
// process, the file is removed.
////////////////////////////////////////////
void ProcTerminate(const mstring& path,int stime=2);
#endif
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