From 5df79c53745fde5d6c3340a2979b1429cd5892c1 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sat, 8 Oct 2011 20:30:28 +0200 Subject: Initial import of htcd system 1.0 Signed-off-by: Henrik Rydberg --- src/mt/lock.h | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 src/mt/lock.h (limited to 'src/mt/lock.h') diff --git a/src/mt/lock.h b/src/mt/lock.h new file mode 100644 index 0000000..e019158 --- /dev/null +++ b/src/mt/lock.h @@ -0,0 +1,72 @@ +/************************************************************************* + * + * 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 + +// 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 + -- cgit v1.2.3