source: branches/samba-3.5.x/lib/util/mutex.c@ 940

/* 
   Unix SMB/CIFS implementation.
   Samba mutex/lock functions
   Copyright (C) Andrew Tridgell 2003
   Copyright (C) James J Myers 2003
   
   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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "mutex.h"

/**
 * @file
 * @brief Mutex utility functions
 */
         
/* the registered mutex handlers */
static struct {
        const char *name;
        struct mutex_ops ops;
} mutex_handlers;

/* read/write lock routines */


/**
  register a set of mutex/rwlock handlers. 
  Should only be called once in the execution of smbd.
*/
_PUBLIC_ bool register_mutex_handlers(const char *name, struct mutex_ops *ops)
{
        if (mutex_handlers.name != NULL) {
                /* it's already registered! */
                DEBUG(2,("mutex handler '%s' already registered - failed '%s'\n", 
                         mutex_handlers.name, name));
                return false;
        }

        mutex_handlers.name = name;
        mutex_handlers.ops = *ops;

        DEBUG(2,("mutex handler '%s' registered\n", name));
        return true;
}