JYCache/s3fs/curl_multi.h

91 lines
3.2 KiB
C++

/*
* 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_MULTI_H_
#define S3FS_CURL_MULTI_H_
#include <memory>
#include <vector>
//----------------------------------------------
// Typedef
//----------------------------------------------
class S3fsCurl;
typedef std::vector<std::unique_ptr<S3fsCurl>> s3fscurllist_t;
typedef bool (*S3fsMultiSuccessCallback)(S3fsCurl* s3fscurl, void* param); // callback for succeed multi request
typedef bool (*S3fsMultiNotFoundCallback)(S3fsCurl* s3fscurl, void* param); // callback for succeed multi request
typedef std::unique_ptr<S3fsCurl> (*S3fsMultiRetryCallback)(S3fsCurl* s3fscurl); // callback for failure and retrying
//----------------------------------------------
// class S3fsMultiCurl
//----------------------------------------------
class S3fsMultiCurl
{
private:
const int maxParallelism;
s3fscurllist_t clist_all; // all of curl requests
s3fscurllist_t clist_req; // curl requests are sent
bool not_abort; // complete all requests without aborting on errors
S3fsMultiSuccessCallback SuccessCallback;
S3fsMultiNotFoundCallback NotFoundCallback;
S3fsMultiRetryCallback RetryCallback;
void* pSuccessCallbackParam;
void* pNotFoundCallbackParam;
pthread_mutex_t completed_tids_lock;
std::vector<pthread_t> completed_tids;
private:
bool ClearEx(bool is_all);
int MultiPerform();
int MultiRead();
static void* RequestPerformWrapper(void* arg);
public:
explicit S3fsMultiCurl(int maxParallelism, bool not_abort = false);
~S3fsMultiCurl();
int GetMaxParallelism() const { return maxParallelism; }
S3fsMultiSuccessCallback SetSuccessCallback(S3fsMultiSuccessCallback function);
S3fsMultiNotFoundCallback SetNotFoundCallback(S3fsMultiNotFoundCallback function);
S3fsMultiRetryCallback SetRetryCallback(S3fsMultiRetryCallback function);
void* SetSuccessCallbackParam(void* param);
void* SetNotFoundCallbackParam(void* param);
bool Clear() { return ClearEx(true); }
bool SetS3fsCurlObject(std::unique_ptr<S3fsCurl> s3fscurl);
int Request();
};
#endif // S3FS_CURL_MULTI_H_
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/