# tdsthread.h

    00001 /* FreeTDS - Library of routines accessing Sybase and Microsoft databases
    00002  *
    00003  * Copyright (C) 2005 Liam Widdowson
    00004  *
    00005  * This library is free software; you can redistribute it and/or
    00006  * modify it under the terms of the GNU Library General Public
    00007  * License as published by the Free Software Foundation; either
    00008  * version 2 of the License, or (at your option) any later version.
    00009  *
    00010  * This library is distributed in the hope that it will be useful,
    00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013  * Library General Public License for more details.
    00014  *
    00015  * You should have received a copy of the GNU Library General Public
    00016  * License along with this library; if not, write to the
    00017  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00018  * Boston, MA 02111-1307, USA.
    00019  */
    00020
    00021 #ifndef TDSTHREAD_H
    00022 #define TDSTHREAD_H 1
    00023
    00024 /* $Id: tdsthread.h,v 1.3 2005/07/06 12:35:37 freddy77 Exp $ */
    00025
    00026 #if defined(_THREAD_SAFE) && defined(TDS_HAVE_PTHREAD_MUTEX)
    00027
    00028 #include <pthread.h>
    00029
    00030 #define TDS_MUTEX_DECLARE(name) pthread_mutex_t name = PTHREAD_MUTEX_INITIALIZER
    00031 #define TDS_MUTEX_LOCK(a) pthread_mutex_lock(a)
    00032 #define TDS_MUTEX_UNLOCK(a) pthread_mutex_unlock(a)
    00033 #define TDS_MUTEX_T pthread_mutex_t
    00034 #define TDS_MUTEX_DECLARE_RECURSIVE(name) pthread_mutex_t name = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
    00035 #define TDS_MUTEX_INIT_RECURSIVE(mutex) do { \
    00036                 pthread_mutexattr_t _attr; \
    00037                 pthread_mutexattr_init(&_attr); \
    00038                 pthread_mutexattr_settype(&_attr, PTHREAD_MUTEX_RECURSIVE); \
    00039                 pthread_mutex_init(mutex, &_attr); \
    00040                 pthread_mutexattr_destroy(&_attr); \
    00041         } while(0)
    00042 #else
    00043
    00044 #define TDS_MUTEX_DECLARE(name) int name
    00045 #define TDS_MUTEX_LOCK(a)
    00046 #define TDS_MUTEX_UNLOCK(a)
    00047 #define TDS_MUTEX_T int
    00048 #define TDS_MUTEX_DECLARE_RECURSIVE(name) int name
    00049 #define TDS_MUTEX_INIT_RECURSIVE(mutex)
    00050 #endif
    00051
    00052 #endif