From f8e8414d544f1227e86099146bba903c9082d09e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Mon, 2 Sep 2013 00:25:40 +0200
Subject: Speed up the downloads. Massively.

---
 logic/net/DownloadJob.h | 111 ++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 93 insertions(+), 18 deletions(-)

(limited to 'logic/net/DownloadJob.h')

diff --git a/logic/net/DownloadJob.h b/logic/net/DownloadJob.h
index 94abb9af..adeef646 100644
--- a/logic/net/DownloadJob.h
+++ b/logic/net/DownloadJob.h
@@ -1,28 +1,37 @@
 #pragma once
-#include "JobQueue.h"
 #include <QtNetwork>
 
-/**
- * A single file for the downloader/cache to process.
- */
-class DownloadJob : public Job
+class DownloadJob;
+class Download;
+typedef QSharedPointer<DownloadJob> DownloadJobPtr;
+typedef QSharedPointer<Download> DownloadPtr;
+
+enum JobStatus
+{
+	Job_NotStarted,
+	Job_InProgress,
+	Job_Finished,
+	Job_Failed
+};
+
+class Job : public QObject
 {
 	Q_OBJECT
+protected:
+	explicit Job(): QObject(0){};
 public:
-	DownloadJob(QUrl url,
-				QString rel_target_path = QString(),
-				QString expected_md5 = QString()
-			   );
-	static JobPtr create(QUrl url, QString rel_target_path = QString(), QString expected_md5 = QString());
+	virtual ~Job() {};
+
 public slots:
-	virtual void start();
-	
-private slots:
-	void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);;
-	void downloadError(QNetworkReply::NetworkError error);
-	void downloadFinished();
-	void downloadReadyRead();
-	
+	virtual void start() = 0;
+};
+
+class Download: public Job
+{
+	friend class DownloadJob;
+	Q_OBJECT
+protected:
+	Download(QUrl url, QString rel_target_path = QString(), QString expected_md5 = QString());
 public:
 	/// the network reply
 	QSharedPointer<QNetworkReply> m_reply;
@@ -46,6 +55,72 @@ public:
 	/// if not saving to file, downloaded data is placed here
 	QByteArray m_data;
 	
+	int currentProgress = 0;
+	int totalProgress = 0;
+	
 	/// The file's status
 	JobStatus m_status;
+	
+	int index_within_job = 0;
+signals:
+	void started(int index);
+	void progress(int index, qint64 current, qint64 total);
+	void succeeded(int index);
+	void failed(int index);
+public slots:
+	virtual void start();
+	
+private slots:
+	void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);;
+	void downloadError(QNetworkReply::NetworkError error);
+	void downloadFinished();
+	void downloadReadyRead();
+};
+
+/**
+ * A single file for the downloader/cache to process.
+ */
+class DownloadJob : public Job
+{
+	Q_OBJECT
+public:
+	explicit DownloadJob()
+		:Job(){};
+	explicit DownloadJob(QUrl url, QString rel_target_path = QString(), QString expected_md5 = QString())
+		:Job()
+	{
+		add(url, rel_target_path, expected_md5);
+	};
+	
+	DownloadPtr add(QUrl url, QString rel_target_path = QString(), QString expected_md5 = QString());
+	DownloadPtr operator[](int index)
+	{
+		return downloads[index];
+	};
+	DownloadPtr first()
+	{
+		if(downloads.size())
+			return downloads[0];
+		return DownloadPtr();
+	}
+	int size() const
+	{
+		return downloads.size();
+	}
+signals:
+	void started();
+	void progress(qint64 current, qint64 total);
+	void succeeded();
+	void failed();
+public slots:
+	virtual void start();
+private slots:
+	void partProgress(int index, qint64 bytesReceived, qint64 bytesTotal);;
+	void partSucceeded(int index);
+	void partFailed(int index);
+private:
+	QList<DownloadPtr> downloads;
+	int num_succeeded = 0;
+	int num_failed = 0;
 };
+
-- 
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