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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "DHTMessageDispatcherImpl.h"
#include "DHTMessage.h"
#include "DHTMessageCallback.h"
#include "DHTMessageEntry.h"
#include "DHTMessageTracker.h"
#include "RecoverableException.h"
#include "LogFactory.h"
#include "Logger.h"
#include "DHTConstants.h"
#include "fmt.h"
#include "DHTNode.h"
#include "a2functional.h"
namespace aria2 {
DHTMessageDispatcherImpl::DHTMessageDispatcherImpl(
const std::shared_ptr<DHTMessageTracker>& tracker)
: tracker_{tracker}, timeout_{DHT_MESSAGE_TIMEOUT}
{
}
void DHTMessageDispatcherImpl::addMessageToQueue(
std::unique_ptr<DHTMessage> message, std::chrono::seconds timeout,
std::unique_ptr<DHTMessageCallback> callback)
{
messageQueue_.push_back(make_unique<DHTMessageEntry>(
std::move(message), std::move(timeout), std::move(callback)));
}
void DHTMessageDispatcherImpl::addMessageToQueue(
std::unique_ptr<DHTMessage> message,
std::unique_ptr<DHTMessageCallback> callback)
{
addMessageToQueue(std::move(message), timeout_, std::move(callback));
}
bool DHTMessageDispatcherImpl::sendMessage(DHTMessageEntry* entry)
{
try {
if (entry->message->send()) {
if (!entry->message->isReply()) {
tracker_->addMessage(entry->message.get(), entry->timeout,
std::move(entry->callback));
}
A2_LOG_INFO(fmt("Message sent: %s", entry->message->toString().c_str()));
}
else {
return false;
}
}
catch (RecoverableException& e) {
A2_LOG_INFO_EX(
fmt("Failed to send message: %s", entry->message->toString().c_str()),
e);
// Add message to DHTMessageTracker with timeout 0 to treat it as
// time out. Without this, we have untracked message and some of
// DHTTask(such as DHTAbstractNodeLookupTask) don't finish
// forever.
if (!entry->message->isReply()) {
tracker_->addMessage(entry->message.get(), 0_s,
std::move(entry->callback));
}
}
return true;
}
void DHTMessageDispatcherImpl::sendMessages()
{
auto itr = std::begin(messageQueue_);
for (; itr != std::end(messageQueue_); ++itr) {
if (!sendMessage((*itr).get())) {
break;
}
}
messageQueue_.erase(std::begin(messageQueue_), itr);
A2_LOG_DEBUG(fmt("%lu dht messages remaining in the queue.",
static_cast<unsigned long>(messageQueue_.size())));
}
size_t DHTMessageDispatcherImpl::countMessageInQueue() const
{
return messageQueue_.size();
}
} // namespace aria2
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