libetpan - fdik
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.
 
 
 
 
 

143 lines
3.7 KiB

/*
* libEtPan! -- a mail stuff library
*
* Copyright (C) 2001, 2014 - DINH Viet Hoa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the libEtPan! project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "mailsasl.h"
#ifdef USE_SASL
#ifdef LIBETPAN_REENTRANT
#if defined(HAVE_PTHREAD_H) && !defined(IGNORE_PTHREAD_H)
#include <pthread.h>
#elif (defined WIN32)
#include <windows.h>
#endif
#endif
#include <sasl/sasl.h>
#include <stdlib.h>
#ifdef LIBETPAN_REENTRANT
#if defined(HAVE_PTHREAD_H) && !defined(IGNORE_PTHREAD_H)
static pthread_mutex_t sasl_lock = PTHREAD_MUTEX_INITIALIZER;
#elif (defined WIN32)
static CRITICAL_SECTION sasl_lock = { 0 };
static int sasl_lock_init_done = 0;
#endif
#endif
#ifdef LIBETPAN_REENTRANT
#if defined(HAVE_PTHREAD_H) && !defined(IGNORE_PTHREAD_H)
#define LOCK_SASL() pthread_mutex_lock(&sasl_lock)
#define UNLOCK_SASL() pthread_mutex_unlock(&sasl_lock)
#elif (defined WIN32)
#define LOCK_SASL() EnterCriticalSection(&sasl_lock)
#define UNLOCK_SASL() LeaveCriticalSection(&sasl_lock)
#endif
#else
#define LOCK_SASL() do {} while(0)
#define UNLOCK_SASL() do {} while(0)
#endif
static int sasl_use_count = 0;
#ifdef LIBETPAN_REENTRANT
void mailsasl_init_lock(){
#if defined(HAVE_PTHREAD_H) && !defined(IGNORE_PTHREAD_H)
// nothing to do
#elif (defined WIN32)
static int volatile mainsasl_init_lock_done = 0;
if (InterlockedExchange(&mainsasl_init_lock_done, 1) == 0){
InitializeCriticalSection(&sasl_lock);
}
#endif
}
void mailsasl_uninit_lock(){
#if defined(HAVE_PTHREAD_H) && !defined(IGNORE_PTHREAD_H)
// nothing to do
#elif (defined WIN32)
static int volatile mainsasl_init_lock_done = 0;
if (InterlockedExchange(&mainsasl_init_lock_done, 1) == 0){
DeleteCriticalSection(&sasl_lock);
}
#endif
}
#endif
void mailsasl_external_ref(void)
{
LOCK_SASL();
sasl_use_count ++;
UNLOCK_SASL();
}
void mailsasl_ref(void)
{
LOCK_SASL();
sasl_use_count ++;
if (sasl_use_count == 1)
sasl_client_init(NULL);
UNLOCK_SASL();
}
void mailsasl_unref(void)
{
LOCK_SASL();
sasl_use_count --;
if (sasl_use_count == 0) {
#if 0 /* workaround libsasl bug */
sasl_done();
#endif
}
UNLOCK_SASL();
}
#else
void mailsasl_external_ref(void)
{
}
void mailsasl_ref(void)
{
}
void mailsasl_unref(void)
{
}
#endif