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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef _APRBase_
#define _APRBase_
#include <string>
#include "apr_thread_mutex.h"
#include "apr_errno.h"
namespace qpid {
namespace concurrent {
/**
* Use of APR libraries necessitates explicit init and terminate
* calls. Any class using APR libs should obtain the reference to
* this singleton and increment on construction, decrement on
* destruction. This class can then correctly initialise apr
* before the first use and terminate after the last use.
*/
class APRBase{
static APRBase* instance;
apr_pool_t* pool;
apr_thread_mutex_t* mutex;
int count;
APRBase();
~APRBase();
static APRBase* getInstance();
bool _increment();
void _decrement();
public:
static void increment();
static void decrement();
};
//this is also a convenient place for a helper function for error checking:
void check(apr_status_t status, const std::string& file, const int line);
std::string get_desc(apr_status_t status);
#define CHECK_APR_SUCCESS(A) check(A, __FILE__, __LINE__);
}
}
#endif
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