source: trunk/doc/src/ipc.qdoc@ 109

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41
42/*!
43 \group ipc
44 \title Inter-Process Communication in Qt
45 \ingroup groups
46 \ingroup architecture
47 \brief Inter-Process communication in Qt applications.
48
49 Qt provides several ways to implement Inter-Process Communication
50 (IPC) in Qt applications.
51
52 \section1 D-Bus
53
54 The \l{QtDBus} module is a Unix-only library
55 you can use to implement IPC using the D-Bus protocol. It extends
56 Qt's \l{signalsandslots.html} {Signals and Slots} mechanism to the
57 IPC level, allowing a signal emitted by one process to be
58 connected to a slot in another process. This \l {Introduction to
59 D-Bus} page has detailed information on how to use the \l{QtDBus}
60 module.
61
62 \section1 TCP/IP
63
64 The cross-platform \l{QtNetwork} module
65 provides classes that make network programming portable and
66 easy. It offers high-level classes (e.g., QHttp, QFtp) that
67 communicate using specific application-level protocols, and
68 lower-level classes (e.g., QTcpSocket, QTcpServer, QSslSocket) for
69 implementing protocols.
70
71 \section1 Shared Memory
72
73 The cross-platform shared memory class, QSharedMemory, provides
74 access to the operating system's shared memory implementation.
75 It allows safe access to shared memory segments by multiple threads
76 and processes. Additionally, QSystemSemaphore can be used to control
77 access to resources shared by the system, as well as to communicate
78 between processes.
79
80 \section1 Qt COmmunications Protocol (QCOP)
81
82 The QCopChannel class implements a protocol for transferring messages