/*
 * s3fs - FUSE-based file system backed by Amazon S3
 *
 * Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
 *
 * 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef S3FS_CURL_HANDLERPOOL_H_
#define S3FS_CURL_HANDLERPOOL_H_

#include <cassert>
#include <curl/curl.h>
#include <list>

//----------------------------------------------
// Typedefs
//----------------------------------------------
typedef std::list<CURL*>            hcurllist_t;

//----------------------------------------------
// class CurlHandlerPool
//----------------------------------------------
class CurlHandlerPool
{
    public:
        explicit CurlHandlerPool(int maxHandlers) : mMaxHandlers(maxHandlers)
        {
            assert(maxHandlers > 0);
        }
        CurlHandlerPool(const CurlHandlerPool&) = delete;
        CurlHandlerPool(CurlHandlerPool&&) = delete;
        CurlHandlerPool& operator=(const CurlHandlerPool&) = delete;
        CurlHandlerPool& operator=(CurlHandlerPool&&) = delete;

        bool Init();
        bool Destroy();

        CURL* GetHandler(bool only_pool);
        void ReturnHandler(CURL* hCurl, bool restore_pool);
        void ResetHandler(CURL* hCurl);

    private:
        int             mMaxHandlers;
        pthread_mutex_t mLock;
        hcurllist_t     mPool;
};

#endif // S3FS_CURL_HANDLERPOOL_H_

/*
* Local variables:
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* End:
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*/