mirror of
https://github.com/aria2/aria2.git
synced 2026-04-03 03:09:04 +00:00
113c8fac7f
To reduce overhead to find commands whose socket is either readable or writable in the download engine loop: * src/Command.h, src/Command.cc (STATUS): New enum. (status): New variable. (statusMatch): New function. (setStatusActive): New function. (setStatusInactive): New function. * src/DownloadEngine.h, src/DownloadEngine.cc (executeCommand): New function. (run): Simplified. (waitData): Call Command::setStatusActive() when command's socket is readable or writable.
152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
/* <!-- 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 --> */
|
|
#ifndef _D_DOWNLOAD_ENGINE_H_
|
|
#define _D_DOWNLOAD_ENGINE_H_
|
|
|
|
#include "Command.h"
|
|
#include "Socket.h"
|
|
#include "SegmentMan.h"
|
|
#include "common.h"
|
|
#include "Logger.h"
|
|
#include "Option.h"
|
|
#ifdef ENABLE_ASYNC_DNS
|
|
# include "NameResolver.h"
|
|
#endif // ENABLE_ASYNC_DNS
|
|
|
|
typedef deque<SocketHandle> Sockets;
|
|
typedef deque<Command*> Commands;
|
|
|
|
class SocketEntry {
|
|
public:
|
|
enum TYPE {
|
|
TYPE_RD,
|
|
TYPE_WR,
|
|
};
|
|
|
|
SocketHandle socket;
|
|
Command* command;
|
|
TYPE type;
|
|
public:
|
|
SocketEntry(const SocketHandle& socket,
|
|
Command* command,
|
|
TYPE type):
|
|
socket(socket), command(command), type(type) {}
|
|
~SocketEntry() {}
|
|
|
|
bool operator==(const SocketEntry& entry) {
|
|
return socket == entry.socket &&
|
|
command == entry.command &&
|
|
type == entry.type;
|
|
}
|
|
};
|
|
|
|
typedef deque<SocketEntry> SocketEntries;
|
|
|
|
#ifdef ENABLE_ASYNC_DNS
|
|
class NameResolverEntry {
|
|
public:
|
|
NameResolverHandle nameResolver;
|
|
Command* command;
|
|
public:
|
|
NameResolverEntry(const NameResolverHandle& nameResolver,
|
|
Command* command):
|
|
nameResolver(nameResolver), command(command) {}
|
|
~NameResolverEntry() {}
|
|
|
|
bool operator==(const NameResolverEntry& entry) {
|
|
return nameResolver == entry.nameResolver &&
|
|
command == entry.command;
|
|
}
|
|
};
|
|
|
|
typedef deque<NameResolverEntry> NameResolverEntries;
|
|
#endif // ENABLE_ASYNC_DNS
|
|
|
|
|
|
class DownloadEngine {
|
|
private:
|
|
void waitData();
|
|
SocketEntries socketEntries;
|
|
#ifdef ENABLE_ASYNC_DNS
|
|
NameResolverEntries nameResolverEntries;
|
|
#endif // ENABLE_ASYNC_DNS
|
|
fd_set rfdset;
|
|
fd_set wfdset;
|
|
int fdmax;
|
|
|
|
void shortSleep() const;
|
|
bool addSocket(const SocketEntry& socketEntry);
|
|
bool deleteSocket(const SocketEntry& socketEntry);
|
|
void executeCommand(Command::STATUS statusFilter);
|
|
protected:
|
|
const Logger* logger;
|
|
virtual void initStatistics() = 0;
|
|
virtual void calculateStatistics() = 0;
|
|
virtual void onEndOfRun() = 0;
|
|
virtual void afterEachIteration() {}
|
|
public:
|
|
bool noWait;
|
|
Commands commands;
|
|
SegmentMan* segmentMan;
|
|
const Option* option;
|
|
|
|
DownloadEngine();
|
|
virtual ~DownloadEngine();
|
|
|
|
void run();
|
|
|
|
void cleanQueue();
|
|
|
|
void updateFdSet();
|
|
|
|
bool addSocketForReadCheck(const SocketHandle& socket,
|
|
Command* command);
|
|
bool deleteSocketForReadCheck(const SocketHandle& socket,
|
|
Command* command);
|
|
bool addSocketForWriteCheck(const SocketHandle& socket,
|
|
Command* command);
|
|
bool deleteSocketForWriteCheck(const SocketHandle& socket,
|
|
Command* command);
|
|
#ifdef ENABLE_ASYNC_DNS
|
|
bool addNameResolverCheck(const NameResolverHandle& resolver,
|
|
Command* command);
|
|
bool deleteNameResolverCheck(const NameResolverHandle& resolver,
|
|
Command* command);
|
|
#endif // ENABLE_ASYNC_DNS
|
|
};
|
|
|
|
#endif // _D_DOWNLOAD_ENGINE_H_
|
|
|