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CLOUD: Rewrite NetworkReadStream

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Now it is based on MemoryReadWriteStream, which is introduced by this
commit. This stream is using ring buffer and is dynamically increasing
its size when necessary.
This commit is contained in:
Alexander Tkachev 2016-05-16 01:05:40 +06:00
parent 01abba4f1d
commit 9c22b7cc64
10 changed files with 119 additions and 46 deletions
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71
backends/networking/curl/connectionmanager.cpp Normal file
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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/networking/curl/connectionmanager.h"
#include "backends/networking/curl/networkreadstream.h"
#include "common/debug.h"
#include <curl/curl.h>
namespace Networking {
ConnectionManager::ConnectionManager(): _multi(0) {
curl_global_init(CURL_GLOBAL_ALL);
_multi = curl_multi_init();
}
ConnectionManager::~ConnectionManager() {
curl_multi_cleanup(_multi);
curl_global_cleanup();
}
NetworkReadStream *ConnectionManager::makeRequest(const char *url) {
NetworkReadStream *stream = new NetworkReadStream(url);
curl_multi_add_handle(_multi, stream->getEasyHandle());
return stream;
}
void ConnectionManager::handle() {
int U;
curl_multi_perform(_multi, &U);
int Q;
CURLMsg *curlMsg;
while ((curlMsg = curl_multi_info_read(_multi, &Q))) {
if (curlMsg->msg == CURLMSG_DONE) {
CURL *e = curlMsg->easy_handle;
NetworkReadStream *stream;
curl_easy_getinfo(e, CURLINFO_PRIVATE, &stream);
if (stream) stream->done();
debug("ConnectionManager: SUCCESS (%d - %s)", curlMsg->data.result, curl_easy_strerror(curlMsg->data.result));
curl_multi_remove_handle(_multi, e);
} else {
debug("ConnectionManager: FAILURE (CURLMsg (%d))", curlMsg->msg);
//TODO: notify stream on this case also
}
}
}
} //end of namespace Cloud