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https://github.com/RetroShare/RetroShare.git
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LibresapiLocalClient fix delay on event coalescing
When the server reply to a burst of querys the socket readyRead() signal may be called only once, thus causing reply not being parsed until next event, and making the query queue grow with time and the user interface unusable, to fix this a the end of the read() slot if there is more data available in the socket read is called again to parse it LibresapiLocalClient improved debugging that may be configured per instance in case of debug build
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@ -20,7 +20,7 @@
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#include "libresapilocalclient.h"
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#include <QJSEngine>
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#include <QtDebug>
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void LibresapiLocalClient::openConnection(QString socketPath)
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{
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@ -34,30 +34,94 @@ void LibresapiLocalClient::openConnection(QString socketPath)
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int LibresapiLocalClient::request( const QString& path, const QString& jsonData,
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QJSValue callback )
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{
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#ifdef QT_DEBUG
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if(mDebug)
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qDebug() << reqCount++ << __PRETTY_FUNCTION__ << path << jsonData
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<< callback.toString();
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#endif // QT_DEBUG
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QByteArray data;
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data.append(path); data.append('\n');
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data.append(jsonData); data.append('\n');
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callbackQueue.enqueue(callback);
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processingQueue.enqueue(PQRecord(path, jsonData, callback));
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return mLocalSocket.write(data);
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}
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void LibresapiLocalClient::socketError(QLocalSocket::LocalSocketError)
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{
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qDebug() << "Socket Eerror!!" << mLocalSocket.errorString();
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qCritical() << __PRETTY_FUNCTION__ << "Socket Eerror! "
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<< mLocalSocket.errorString();
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}
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void LibresapiLocalClient::read()
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{
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QString receivedMsg(mLocalSocket.readLine());
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QJSValue callback(callbackQueue.dequeue());
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if(callback.isCallable())
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if(processingQueue.isEmpty())
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{
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QJSValue params = callback.engine()->newObject();
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params.setProperty("response", receivedMsg);
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callback.call(QJSValueList { params });
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qCritical() << __PRETTY_FUNCTION__ << "callbackQueue is empty "
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<< "something really fishy is happening!";
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return;
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}
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if(!mLocalSocket.canReadLine())
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{
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qWarning() << __PRETTY_FUNCTION__
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<< "Strange, can't read a complete line!";
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return;
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}
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QByteArray&& ba(mLocalSocket.readLine());
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if(ba.size() < 2)
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{
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qWarning() << __PRETTY_FUNCTION__ << "Got answer of less then 2 bytes,"
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<< "something fishy is happening!";
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return;
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}
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QString receivedMsg(ba);
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PQRecord&& p(processingQueue.dequeue());
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#ifdef QT_DEBUG
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if(mDebug)
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qDebug() << ansCount++ << __PRETTY_FUNCTION__ << receivedMsg << p.mPath
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<< p.mJsonData << p.mCallback.toString();
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#endif // QT_DEBUG
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emit goodResponseReceived(receivedMsg); /// @deprecated
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emit responseReceived(receivedMsg);
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if(p.mCallback.isCallable())
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{
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QJSValue&& params(p.mCallback.engine()->newObject());
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params.setProperty("response", receivedMsg);
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p.mCallback.call(QJSValueList { params });
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}
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// In case of multiple reply coaleshed in the same signal
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if(mLocalSocket.bytesAvailable() > 0) read();
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}
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LibresapiLocalClient::PQRecord::PQRecord( const QString&
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#ifdef QT_DEBUG
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path
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#endif //QT_DEBUG
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, const QString&
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#ifdef QT_DEBUG
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jsonData
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#endif //QT_DEBUG
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, const QJSValue& callback) :
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#ifdef QT_DEBUG
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mPath(path), mJsonData(jsonData),
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#endif //QT_DEBUG
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mCallback(callback) {}
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#ifdef QT_DEBUG
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void LibresapiLocalClient::setDebug(bool v)
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{
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if(v != mDebug)
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{
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mDebug = v;
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emit debugChanged();
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}
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}
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#endif // QT_DEBUG
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@ -29,15 +29,43 @@ class LibresapiLocalClient : public QObject
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Q_OBJECT
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public:
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LibresapiLocalClient() : mLocalSocket(this) {}
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LibresapiLocalClient() :
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#ifdef QT_DEBUG
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reqCount(0), ansCount(0), mDebug(true),
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#endif // QT_DEBUG
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mLocalSocket(this) {}
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Q_INVOKABLE int request( const QString& path, const QString& jsonData = "",
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QJSValue callback = QJSValue::NullValue);
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QJSValue callback = QJSValue::NullValue );
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Q_INVOKABLE void openConnection(QString socketPath);
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#ifdef QT_DEBUG
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Q_PROPERTY(bool debug READ debug WRITE setDebug NOTIFY debugChanged)
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bool debug() const { return mDebug; }
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void setDebug(bool v);
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uint64_t reqCount;
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uint64_t ansCount;
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bool mDebug;
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#endif // QT_DEBUG
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private:
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QLocalSocket mLocalSocket;
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QQueue<QJSValue> callbackQueue;
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struct PQRecord
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{
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PQRecord( const QString& path, const QString& jsonData,
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const QJSValue& callback);
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#ifdef QT_DEBUG
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QString mPath;
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QString mJsonData;
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#endif //QT_DEBUG
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QJSValue mCallback;
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};
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QQueue<PQRecord> processingQueue;
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private slots:
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void socketError(QLocalSocket::LocalSocketError error);
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@ -52,6 +80,10 @@ signals:
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* @param msg
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*/
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void responseReceived(const QString & msg);
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#ifdef QT_DEBUG
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void debugChanged();
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#endif // QT_DEBUG
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};
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#endif // LIBRESAPILOCALCLIENT_H
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