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The Main Event Loop

Manages all available sources of events. More...

Classes
class	Glib::PollFD
class	Glib::SignalTimeout
class	Glib::SignalIdle
class	Glib::SignalIO
class	Glib::SignalChildWatch
class	Glib::MainContext
	Main context. More...
class	Glib::MainLoop
class	Glib::Source
class	Glib::TimeoutSource
class	Glib::IdleSource
class	Glib::IOSource
Enumerations
enum	{   Glib::PRIORITY_HIGH = -100,   Glib::PRIORITY_DEFAULT = 0,   Glib::PRIORITY_HIGH_IDLE = 100,   Glib::PRIORITY_DEFAULT_IDLE = 200,   Glib::PRIORITY_LOW = 300 }
enum	Glib::IOCondition {   Glib::IO_IN,   Glib::IO_OUT,   Glib::IO_PRI,   Glib::IO_ERR,   Glib::IO_HUP,   Glib::IO_NVAL }
	A bitwise combination representing an I/O condition to watch for on an event source. More...
Functions
IOCondition	Glib::operator| (IOCondition lhs, IOCondition rhs)
IOCondition	Glib::operator& (IOCondition lhs, IOCondition rhs)
IOCondition	Glib::operator^ (IOCondition lhs, IOCondition rhs)
IOCondition	Glib::operator~ (IOCondition flags)
IOCondition&	Glib::operator|= (IOCondition& lhs, IOCondition rhs)
IOCondition&	Glib::operator&= (IOCondition& lhs, IOCondition rhs)
IOCondition&	Glib::operator^= (IOCondition& lhs, IOCondition rhs)
SignalTimeout	Glib::signal_timeout ()
	Convenience timeout signal.
SignalIdle	Glib::signal_idle ()
	Convenience idle signal.
SignalIO	Glib::signal_io ()
	Convenience I/O signal.
SignalChildWatch	Glib::signal_child_watch ()
	Convenience child watch signal.
Glib::RefPtr<MainContext>	Glib::MainContext::wrap (GMainContext* gobject, bool take_copy=false)
Glib::RefPtr<MainLoop>	Glib::MainLoop::wrap (GMainLoop* gobject, bool take_copy=false)

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Detailed Description

Manages all available sources of events.

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Enumeration Type Documentation

anonymous enum

Enumerator:

PRIORITY_HIGH	Use this for high priority event sources. It is not used within GLib or GTK+.
PRIORITY_DEFAULT	Use this for default priority event sources. In glibmm this priority is used by default when installing timeout handlers with SignalTimeout::connect(). In GDK this priority is used for events from the X server.
PRIORITY_HIGH_IDLE	Use this for high priority idle functions. GTK+ uses PRIORITY_HIGH_IDLE + 10 for resizing operations, and PRIORITY_HIGH_IDLE + 20 for redrawing operations. (This is done to ensure that any pending resizes are processed before any pending redraws, so that widgets are not redrawn twice unnecessarily.)
PRIORITY_DEFAULT_IDLE	Use this for default priority idle functions. In glibmm this priority is used by default when installing idle handlers with SignalIdle::connect().
PRIORITY_LOW	Use this for very low priority background tasks. It is not used within GLib or GTK+.

enum Glib::IOCondition

A bitwise combination representing an I/O condition to watch for on an event source.

The flags correspond to those used by the poll() system call on UNIX (see man 2 poll). To test for individual flags, do something like this:

 if((condition & Glib::IO_OUT) != 0)
   do_some_output();

Bitwise operators:

IOCondition operator|(IOCondition, IOCondition)
IOCondition operator&(IOCondition, IOCondition)
IOCondition operator^(IOCondition, IOCondition)
IOCondition operator~(IOCondition)
IOCondition& operator|=(IOCondition&, IOCondition)
IOCondition& operator&=(IOCondition&, IOCondition)
IOCondition& operator^=(IOCondition&, IOCondition)

Enumerator:

IO_IN	There is data to read.
IO_OUT	Data can be written (without blocking).
IO_PRI	There is urgent data to read.
IO_ERR	Error condition.
IO_HUP	Hung up (the connection has been broken, usually for pipes and sockets).
IO_NVAL	Invalid request. The file descriptor is not open.

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Function Documentation

IOCondition Glib::operator &	(	IOCondition	lhs,
		IOCondition	rhs
	)			[inline]

IOCondition& Glib::operator &=	(	IOCondition &	lhs,
		IOCondition	rhs
	)			[inline]

IOCondition Glib::operator^	(	IOCondition	lhs,
		IOCondition	rhs
	)			[inline]

IOCondition& Glib::operator^=	(	IOCondition &	lhs,
		IOCondition	rhs
	)			[inline]

IOCondition Glib::operator|	(	IOCondition	lhs,
		IOCondition	rhs
	)			[inline]

IOCondition& Glib::operator|=	(	IOCondition &	lhs,
		IOCondition	rhs
	)			[inline]

IOCondition Glib::operator~

(

IOCondition

flags

)

[inline]

SignalChildWatch Glib::signal_child_watch

(

)

Convenience child watch signal.

Returns:

A signal proxy; you want to use SignalChildWatch::connect().

SignalIdle Glib::signal_idle

(

)

Convenience idle signal.

Returns:

A signal proxy; you want to use SignalIdle::connect().

Examples:

thread/dispatcher.cc.

SignalIO Glib::signal_io

(

)

Convenience I/O signal.

Returns:

A signal proxy; you want to use SignalIO::connect().

SignalTimeout Glib::signal_timeout

(

)

Convenience timeout signal.

Returns:

A signal proxy; you want to use SignalTimeout::connect().

Glib::RefPtr<MainLoop> wrap	(	GMainLoop *	gobject,
		bool	take_copy = false
	)			[related, inherited]

Glib::RefPtr<MainContext> wrap	(	GMainContext *	gobject,
		bool	take_copy = false
	)			[related, inherited]

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