source: branches/4.5.1/doc/src/ipc.qdoc@ 1044

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/*!
    \group ipc
    \title Inter-Process Communication in Qt
    \ingroup groups
    \ingroup architecture
    \brief Inter-Process communication in Qt applications.

    Qt provides several ways to implement Inter-Process Communication
    (IPC) in Qt applications.

    \section1 D-Bus

    The \l{QtDBus} module is a Unix-only library
    you can use to implement IPC using the D-Bus protocol. It extends
    Qt's \l{signalsandslots.html} {Signals and Slots} mechanism to the
    IPC level, allowing a signal emitted by one process to be
    connected to a slot in another process. This \l {Introduction to
    D-Bus} page has detailed information on how to use the \l{QtDBus}
    module.

    \section1 TCP/IP

    The cross-platform \l{QtNetwork} module
    provides classes that make network programming portable and
    easy. It offers high-level classes (e.g., QHttp, QFtp) that
    communicate using specific application-level protocols, and
    lower-level classes (e.g., QTcpSocket, QTcpServer, QSslSocket) for
    implementing protocols.

    \section1 Shared Memory

    The cross-platform shared memory class, QSharedMemory, provides
    access to the operating system's shared memory implementation.
    It allows safe access to shared memory segments by multiple threads
    and processes. Additionally, QSystemSemaphore can be used to control
    access to resources shared by the system, as well as to communicate
    between processes.

    \section1 Qt COmmunications Protocol (QCOP)

    The QCopChannel class implements a protocol for transferring messages
    between client processes across named channels. QCopChannel is
    only available in \l{Qt for Embedded Linux}. Like the \l{QtDBus}
    module, QCOP extends Qt's \l{Signals and Slots} mechanism to the
    IPC level, allowing a signal emitted by one process to be
    connected to a slot in another process, but unlike QtDBus, QCOP
    does not depend on a third party library.

*/