boinc/client/file_xfer.h

77 lines
2.3 KiB
C++

// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software 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 Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef _FILE_XFER_
#define _FILE_XFER_
// A FILE_XFER object represents a file transfer "episode"
// (see pers_file_xfer.h), i.e. an HTTP transaction with a
// particular data server.
//
#include "client_types.h"
#include "http_curl.h"
#define MAX_FILE_XFERS_PER_PROJECT 2
#define MAX_FILE_XFERS 8
// kind of arbitrary
#define MIN_DOWNLOAD_INCREMENT 5000
class FILE_XFER : public HTTP_OP {
public:
FILE_INFO* fip;
char pathname[256];
char header[4096];
bool file_size_query;
bool is_upload;
double starting_size;
// File size at start of transfer, used for:
// 1) a "minimum download increment"
// that rejects partial downloads of less than 5K,
// since these may be error messages from proxies.
// 2) lets us recover when server ignored Range request
// and sent us whole file
FILE_XFER();
~FILE_XFER();
int parse_upload_response(double &offset);
int init_download(FILE_INFO&);
int init_upload(FILE_INFO&);
bool file_xfer_done;
int file_xfer_retval;
};
class FILE_XFER_SET {
HTTP_OP_SET* http_ops;
public:
bool up_active, down_active;
// has there been transfer activity since last call to check_active()?
std::vector<FILE_XFER*> file_xfers;
FILE_XFER_SET(HTTP_OP_SET*);
int insert(FILE_XFER*);
int remove(FILE_XFER*);
bool poll();
void check_active(bool&, bool&);
void set_bandwidth_limits(bool is_upload);
};
#endif