glibmm: Gio::SignalSocket Class Reference
#include <giomm/socketsource.h>
Public Member Functions |
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sigc::connection | connect (const sigc::slot < bool, Glib::IOCondition >& slot, const Glib::RefPtr < Socket >& socket, Glib::IOCondition condition, const Glib::RefPtr < Cancellable >& cancellable= Glib::RefPtr < Cancellable >(), int priority= Glib::PRIORITY_DEFAULT ) |
Connects an I/O handler that watches a socket.
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Detailed Description
Member Function Documentation
sigc::connection Gio::SignalSocket::connect | ( | const sigc::slot < bool, Glib::IOCondition >& | slot , |
const Glib::RefPtr < Socket >& | socket , | ||
Glib::IOCondition | condition , | ||
const Glib::RefPtr < Cancellable >& |
cancellable
=
Glib::RefPtr
<
Cancellable
>()
,
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int |
priority
=
Glib::PRIORITY_DEFAULT
|
||
) |
Connects an I/O handler that watches a socket.
bool
io_handler(
Glib::IOCondition
io_condition) { ... }
is equivalent to:
bool
io_handler(
Glib::IOCondition
io_condition) { ... }
socket_source->connect(
sigc::ptr_fun
(&io_handler));
socket_source->attach(
Glib::MainContext::get_default
());
This method is not thread-safe. You should call it, or manipulate the returned sigc::connection object, only from the thread where the SignalSocket object's MainContext runs.
- Parameters
-
slot A slot to call when polling socket results in an event that matches condition . The event will be passed as a parameter to slot . If io_handler()
returnsfalse
the handler is disconnected.socket The Socket object to watch. condition The conditions to watch for. cancellable A Cancellable object which can be used to cancel the source, which will cause the source to trigger, reporting the current condition (which is likely 0 unless cancellation happened at the same time as a condition change). You can check for this in the callback using Cancellable::is_cancelled() . priority The priority of the new event source.
- Returns
- A connection handle, which can be used to disconnect the handler.