/usr/include/kio/connection.h is in kdelibs5-dev 4:4.8.2-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* This file is part of the KDE libraries
Copyright (C) 2000 Stephan Kulow <coolo@kde.org>
David Faure <faure@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KIO_CONNECTION_H
#define KIO_CONNECTION_H
#if defined(MAKE_KIO_LIB) || defined(MAKE_KLAUNCHER)
# define KIO_CONNECTION_EXPORT KIO_EXPORT
#else
# define KIO_CONNECTION_EXPORT KIO_EXPORT_DEPRECATED
#endif
#include "kio_export.h"
#include <QtCore/QObject>
#include <QtCore/QString>
namespace KIO {
class ConnectionPrivate;
class ConnectionServer;
/**
* @private
*
* This class provides a simple means for IPC between two applications
* via a pipe.
* It handles a queue of commands to be sent which makes it possible to
* queue data before an actual connection has been established.
*/
class KIO_CONNECTION_EXPORT Connection : public QObject
{
Q_OBJECT
public:
/**
* Creates a new connection.
* @see connectToRemote, listenForRemote
*/
explicit Connection(QObject *parent = 0);
virtual ~Connection();
/**
* Connects to the remote address.
*/
void connectToRemote(const QString &address);
/// Closes the connection.
void close();
QString errorString() const;
bool isConnected() const;
/**
* Checks whether the connection has been initialized.
* @return true if the initialized
* @see init()
*/
bool inited() const;
/**
* Sends/queues the given command to be sent.
* @param cmd the command to set
* @param arr the bytes to send
* @return true if successful, false otherwise
*/
bool send(int cmd, const QByteArray &arr = QByteArray());
/**
* Sends the given command immediately.
* @param _cmd the command to set
* @param data the bytes to send
* @return true if successful, false otherwise
*/
bool sendnow( int _cmd, const QByteArray &data );
/**
* Returns true if there are packets to be read immediately,
* false if waitForIncomingTask must be called before more data
* is available.
*/
bool hasTaskAvailable() const;
/**
* Waits for one more command to be handled and ready.
*
* @param ms the time to wait in milliseconds
* @returns true if one command can be read, false if we timed out
*/
bool waitForIncomingTask(int ms = 30000);
/**
* Receive data.
*
* @param _cmd the received command will be written here
* @param data the received data will be written here
* @return >=0 indicates the received data size upon success
* -1 indicates error
*/
int read( int* _cmd, QByteArray &data );
/**
* Don't handle incoming data until resumed.
*/
void suspend();
/**
* Resume handling of incoming data.
*/
void resume();
/**
* Returns status of connection.
* @return true if suspended, false otherwise
*/
bool suspended() const;
Q_SIGNALS:
void readyRead();
private:
Q_PRIVATE_SLOT(d, void dequeue())
Q_PRIVATE_SLOT(d, void commandReceived(Task))
Q_PRIVATE_SLOT(d, void disconnected())
friend class ConnectionPrivate;
friend class ConnectionServer;
class ConnectionPrivate* const d;
};
class ConnectionServerPrivate;
/**
* @private
*
* This class provides a way to obtaining KIO::Connection connections.
*/
class KIO_EXPORT ConnectionServer : public QObject
{
Q_OBJECT
public:
ConnectionServer(QObject *parent = 0);
~ConnectionServer();
/**
* Sets this connection to listen mode. Use address() to obtain the
* address this is listening on.
*/
void listenForRemote();
bool isListening() const;
/// Closes the connection.
void close();
/**
* Returns the address for this connection if it is listening, an empty
* string if not.
*/
QString address() const;
Connection *nextPendingConnection();
void setNextPendingConnection(Connection *conn);
Q_SIGNALS:
void newConnection();
private:
friend class ConnectionServerPrivate;
ConnectionServerPrivate * const d;
};
}
#undef KIO_CONNECTION_EXPORT
#endif
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