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- Multithreaded downloadThread for performance

adaptive-webui-19844
Christophe Dumez 18 years ago
parent
commit
f4adf173a2
  1. 2
      TODO
  2. 41
      src/downloadThread.h

2
TODO

@ -45,9 +45,7 @@ @@ -45,9 +45,7 @@
- Windows port (Chris - Peerkoel)
- Translations update
- Allow to abort a search by launching another one
- Multithread downloadThread
* beta2
- Improve RSS code + cleanup (chris)
- Wait for some bug fixes in libtorrent :
- upload/download limit per torrent
- ipfilter crash

41
src/downloadThread.h

@ -46,16 +46,22 @@ class downloadThread : public QThread { @@ -46,16 +46,22 @@ class downloadThread : public QThread {
QWaitCondition condition;
bool abort;
URLStream url_stream;
QList<downloadThread*> subThreads;
bool subThread;
signals:
void downloadFinished(QString url, QString file_path);
void downloadFailure(QString url, QString reason);
// For subthreads
void downloadFinishedST(downloadThread* st, QString url, QString file_path);
void downloadFailureST(downloadThread* st, QString url, QString reason);
public:
downloadThread(QObject* parent) : QThread(parent){
downloadThread(QObject* parent, bool subThread = false) : QThread(parent){
mutex.lock();
abort = false;
mutex.unlock();
this->subThread = subThread;
}
~downloadThread(){
@ -112,6 +118,15 @@ class downloadThread : public QThread { @@ -112,6 +118,15 @@ class downloadThread : public QThread {
if(url_list.size() != 0){
QString url = url_list.takeFirst();
mutex.unlock();
if(!subThread){
downloadThread *st = new downloadThread(0, true);
subThreads << st;
connect(st, SIGNAL(downloadFinishedST(downloadThread*, QString, QString)), this, SLOT(propagateDownloadedFile(downloadThread*, QString, QString)));
connect(st, SIGNAL(downloadFailureST(downloadThread*, QString, QString)), this, SLOT(propagateDownloadFailure(downloadThread*, QString, QString)));
st->downloadUrl(url);
continue;
}
// Sub threads code
// XXX: Trick to get a unique filename
QString filePath;
QTemporaryFile *tmpfile = new QTemporaryFile();
@ -130,7 +145,7 @@ class downloadThread : public QThread { @@ -130,7 +145,7 @@ class downloadThread : public QThread {
QString error_msg = QString(misc::toString(status).c_str());
qDebug("Download failed for %s, reason: %s", (const char*)url.toUtf8(), (const char*)error_msg.toUtf8());
url_stream.close();
emit downloadFailure(url, errorCodeToString(status));
emit downloadFailureST(this, url, errorCodeToString(status));
continue;
}
qDebug("Downloading %s...", (const char*)url.toUtf8());
@ -149,7 +164,7 @@ class downloadThread : public QThread { @@ -149,7 +164,7 @@ class downloadThread : public QThread {
}
dest_file.close();
url_stream.close();
emit downloadFinished(url, filePath);
emit downloadFinishedST(this, url, filePath);
qDebug("download completed here: %s", (const char*)filePath.toUtf8());
}else{
condition.wait(&mutex);
@ -157,6 +172,26 @@ class downloadThread : public QThread { @@ -157,6 +172,26 @@ class downloadThread : public QThread {
}
}
}
protected slots:
void propagateDownloadedFile(downloadThread* st, QString url, QString path){
int index = subThreads.indexOf(st);
if(index == -1)
std::cerr << "ERROR: Couldn't delete download subThread!\n";
else
subThreads.takeAt(index);
delete st;
emit downloadFinished(url, path);
}
void propagateDownloadFailure(downloadThread* st, QString url, QString reason){
int index = subThreads.indexOf(st);
if(index == -1)
std::cerr << "ERROR: Couldn't delete download subThread!\n";
else
subThreads.takeAt(index);
delete st;
emit downloadFailure(url, reason);
}
};
#endif

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