glibmm 2.52.1

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Glib::IOSource Class Reference
The Main Event Loop

`#include <glibmm/main.h>`

Inheritance diagram for Glib::IOSource:
[legend]

## Public Types
using | CppObjectType = Glib::IOSource
Public Types inherited from Glib::Source
using | CppObjectType = Glib::Source
using | BaseObjectType = GSource

## Public Member Functions
sigc::connection | connect (const sigc::slot< bool, IOCondition >& slot)
Public Member Functions inherited from Glib::Source
| Source (const Source&)=delete
Source& | operator= (const Source&)=delete
unsigned int | attach (const Glib::RefPtr< MainContext >& context)
| Adds a Source to a context so that it will be executed within that context. More...
unsigned int | attach ()
| Adds a Source to a context so that it will be executed within that context. More...
void | destroy ()
| Removes a source from its MainContext, if any, and marks it as destroyed. More...
void | set_priority (int priority)
| Sets the priority of a source. More...
int | get_priority () const
| Gets the priority of a source. More...
void | set_can_recurse (bool can_recurse)
| Sets whether a source can be called recursively. More...
bool | get_can_recurse () const
| Checks whether a source is allowed to be called recursively. More...
unsigned int | get_id () const
| Returns the numeric ID for a particular source. More...
Glib::RefPtr< MainContext > | get_context ()
| Gets the MainContext with which the source is associated. More...
GSource* | gobj ()
const GSource* | gobj () const
GSource* | gobj_copy () const
void | reference () const
void | unreference () const

## Static Public Member Functions
static Glib::RefPtr< IOSource > | create (PollFD::fd_t fd, IOCondition condition)
static Glib::RefPtr< IOSource > | create (const Glib::RefPtr< IOChannel >& channel, IOCondition condition)
Static Public Member Functions inherited from Glib::Source
static Glib::RefPtr< Source > | create ()

## Protected Member Functions
| IOSource (PollFD::fd_t fd, IOCondition condition)
| IOSource (const Glib::RefPtr< IOChannel >& channel, IOCondition condition)
| IOSource (GSource* cast_item, GSourceFunc callback_func)
| Wrap an existing GSource object and install the given callback function. More...
| ~IOSource () noexceptoverride
bool | prepare (int& timeout) override
bool | check () override
bool | dispatch (sigc::slot_base* slot) override
Protected Member Functions inherited from Glib::Source
| Source ()
| Construct an object that uses the virtual functions prepare(), check() and dispatch(). More...
| Source (GSource* cast_item, GSourceFunc callback_func)
| Wrap an existing GSource object and install the given callback function. More...
virtual | ~Source () noexcept
sigc::connection | connect_generic (const sigc::slot_base& slot)
void | add_poll (PollFD& poll_fd)
| Adds a file descriptor to the set of file descriptors polled for this source. More...
void | remove_poll (PollFD& poll_fd)
| Removes a file descriptor from the set of file descriptors polled for this source. More...
void | get_current_time (Glib::TimeVal& current_time)
| Gets the "current time" to be used when checking this source. More...
gint64 | get_time () const
| Gets the time to be used when checking this source. More...

## Member Typedef Documentation

using Glib::IOSource::CppObjectType = Glib::IOSource

## Constructor & Destructor Documentation

Glib::IOSource::IOSource | ( | PollFD::fd_t | fd,
|  | IOCondition | condition
| ) |  |
| protected

Glib::IOSource::IOSource | ( | const Glib::RefPtr< IOChannel >& | channel,
|  | IOCondition | condition
| ) |  |
| protected

Glib::IOSource::IOSource | ( | GSource * | cast_item,
|  | GSourceFunc | callback_func
| ) |  |
| protected

Wrap an existing GSource object and install the given callback function.

This constructor is for use by derived types that need to wrap a GSource object.

See also
  Source::Source(GSource*, GSourceFunc).

Since glibmm 2.42:

Glib::IOSource::~IOSource | ( |  | ) |
| override protected noexcept

## Member Function Documentation

bool Glib::IOSource::check | ( |  | ) |
| override protected virtual

Implements Glib::Source.

sigc::connection Glib::IOSource::connect | ( | const sigc::slot< bool, IOCondition >& | slot | ) |

static Glib::RefPtr<IOSource> Glib::IOSource::create | ( | PollFD::fd_t | fd,
|  | IOCondition | condition
| ) |  |
| static

static Glib::RefPtr<IOSource> Glib::IOSource::create | ( | const Glib::RefPtr< IOChannel >& | channel,
|  | IOCondition | condition
| ) |  |
| static

bool Glib::IOSource::dispatch | ( | sigc::slot_base * | slot | ) |
| override protected virtual

Implements Glib::Source.

bool Glib::IOSource::prepare | ( | int & | timeout | ) |
| override protected virtual

Implements Glib::Source.