mirror of
https://gitlab.gnome.org/GNOME/glib.git
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6c5a227bcc
This is basically glnx_steal_fd() from libglnx. We already had two private implementations of it in GLib. Signed-off-by: Simon McVittie <smcv@collabora.com>
805 lines
28 KiB
C
805 lines
28 KiB
C
/* gmain.h - the GLib Main loop
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* Copyright (C) 1998-2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_MAIN_H__
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#define __G_MAIN_H__
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#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
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#error "Only <glib.h> can be included directly."
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#endif
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#include <glib/gpoll.h>
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#include <glib/gslist.h>
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#include <glib/gthread.h>
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G_BEGIN_DECLS
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typedef enum /*< flags >*/
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{
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G_IO_IN GLIB_SYSDEF_POLLIN,
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G_IO_OUT GLIB_SYSDEF_POLLOUT,
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G_IO_PRI GLIB_SYSDEF_POLLPRI,
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G_IO_ERR GLIB_SYSDEF_POLLERR,
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G_IO_HUP GLIB_SYSDEF_POLLHUP,
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G_IO_NVAL GLIB_SYSDEF_POLLNVAL
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} GIOCondition;
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/**
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* GMainContext:
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*
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* The `GMainContext` struct is an opaque data
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* type representing a set of sources to be handled in a main loop.
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*/
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typedef struct _GMainContext GMainContext;
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/**
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* GMainLoop:
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*
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* The `GMainLoop` struct is an opaque data type
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* representing the main event loop of a GLib or GTK+ application.
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*/
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typedef struct _GMainLoop GMainLoop;
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/**
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* GSource:
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*
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* The `GSource` struct is an opaque data type
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* representing an event source.
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*/
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typedef struct _GSource GSource;
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typedef struct _GSourcePrivate GSourcePrivate;
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/**
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* GSourceCallbackFuncs:
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* @ref: Called when a reference is added to the callback object
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* @unref: Called when a reference to the callback object is dropped
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* @get: Called to extract the callback function and data from the
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* callback object.
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*
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* The `GSourceCallbackFuncs` struct contains
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* functions for managing callback objects.
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*/
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typedef struct _GSourceCallbackFuncs GSourceCallbackFuncs;
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/**
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* GSourceFuncs:
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* @prepare: Called before all the file descriptors are polled. If the
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* source can determine that it is ready here (without waiting for the
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* results of the poll() call) it should return %TRUE. It can also return
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* a @timeout_ value which should be the maximum timeout (in milliseconds)
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* which should be passed to the poll() call. The actual timeout used will
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* be -1 if all sources returned -1, or it will be the minimum of all
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* the @timeout_ values returned which were >= 0. Since 2.36 this may
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* be %NULL, in which case the effect is as if the function always returns
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* %FALSE with a timeout of -1. If @prepare returns a
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* timeout and the source also has a ready time set, then the
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* lower of the two will be used.
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* @check: Called after all the file descriptors are polled. The source
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* should return %TRUE if it is ready to be dispatched. Note that some
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* time may have passed since the previous prepare function was called,
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* so the source should be checked again here. Since 2.36 this may
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* be %NULL, in which case the effect is as if the function always returns
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* %FALSE.
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* @dispatch: Called to dispatch the event source, after it has returned
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* %TRUE in either its @prepare or its @check function, or if a ready time
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* has been reached. The @dispatch function receives a callback function and
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* user data. The callback function may be %NULL if the source was never
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* connected to a callback using g_source_set_callback(). The @dispatch
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* function should call the callback function with @user_data and whatever
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* additional parameters are needed for this type of event source. The
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* return value of the @dispatch function should be #G_SOURCE_REMOVE if the
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* source should be removed or #G_SOURCE_CONTINUE to keep it.
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* @finalize: Called when the source is finalized. At this point, the source
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* will have been destroyed, had its callback cleared, and have been removed
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* from its #GMainContext, but it will still have its final reference count,
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* so methods can be called on it from within this function.
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*
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* The `GSourceFuncs` struct contains a table of
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* functions used to handle event sources in a generic manner.
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*
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* For idle sources, the prepare and check functions always return %TRUE
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* to indicate that the source is always ready to be processed. The prepare
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* function also returns a timeout value of 0 to ensure that the poll() call
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* doesn't block (since that would be time wasted which could have been spent
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* running the idle function).
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*
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* For timeout sources, the prepare and check functions both return %TRUE
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* if the timeout interval has expired. The prepare function also returns
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* a timeout value to ensure that the poll() call doesn't block too long
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* and miss the next timeout.
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*
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* For file descriptor sources, the prepare function typically returns %FALSE,
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* since it must wait until poll() has been called before it knows whether
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* any events need to be processed. It sets the returned timeout to -1 to
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* indicate that it doesn't mind how long the poll() call blocks. In the
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* check function, it tests the results of the poll() call to see if the
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* required condition has been met, and returns %TRUE if so.
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*/
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typedef struct _GSourceFuncs GSourceFuncs;
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/**
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* GPid:
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*
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* A type which is used to hold a process identification.
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*
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* On UNIX, processes are identified by a process id (an integer),
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* while Windows uses process handles (which are pointers).
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*
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* GPid is used in GLib only for descendant processes spawned with
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* the g_spawn functions.
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*/
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/* defined in glibconfig.h */
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/**
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* G_PID_FORMAT:
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*
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* A format specifier that can be used in printf()-style format strings
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* when printing a #GPid.
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*
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* Since: 2.50
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*/
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/* defined in glibconfig.h */
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/**
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* GSourceFunc:
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* @user_data: data passed to the function, set when the source was
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* created with one of the above functions
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*
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* Specifies the type of function passed to g_timeout_add(),
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* g_timeout_add_full(), g_idle_add(), and g_idle_add_full().
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*
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* When calling g_source_set_callback(), you may need to cast a function of a
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* different type to this type. Use G_SOURCE_FUNC() to avoid warnings about
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* incompatible function types.
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*
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* Returns: %FALSE if the source should be removed. #G_SOURCE_CONTINUE and
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* #G_SOURCE_REMOVE are more memorable names for the return value.
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*/
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typedef gboolean (*GSourceFunc) (gpointer user_data);
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/**
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* G_SOURCE_FUNC:
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* @f: a function pointer.
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*
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* Cast a function pointer to a #GSourceFunc, suppressing warnings from GCC 8
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* onwards with `-Wextra` or `-Wcast-function-type` enabled about the function
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* types being incompatible.
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*
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* For example, the correct type of callback for a source created by
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* g_child_watch_source_new() is #GChildWatchFunc, which accepts more arguments
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* than #GSourceFunc. Casting the function with `(GSourceFunc)` to call
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* g_source_set_callback() will trigger a warning, even though it will be cast
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* back to the correct type before it is called by the source.
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*
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* Since: 2.58
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*/
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#define G_SOURCE_FUNC(f) ((GSourceFunc) (void (*)(void)) (f)) GLIB_AVAILABLE_MACRO_IN_2_58
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/**
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* GChildWatchFunc:
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* @pid: the process id of the child process
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* @status: Status information about the child process, encoded
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* in a platform-specific manner
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* @user_data: user data passed to g_child_watch_add()
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*
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* Prototype of a #GChildWatchSource callback, called when a child
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* process has exited. To interpret @status, see the documentation
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* for g_spawn_check_exit_status().
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*/
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typedef void (*GChildWatchFunc) (GPid pid,
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gint status,
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gpointer user_data);
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/**
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* GSourceDisposeFunc:
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* @source: #GSource that is currently being disposed
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*
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* Dispose function for @source. See g_source_set_dispose_function() for
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* details.
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*
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* Since: 2.64
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*/
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GLIB_AVAILABLE_TYPE_IN_2_64
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typedef void (*GSourceDisposeFunc) (GSource *source);
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struct _GSource
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{
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/*< private >*/
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gpointer callback_data;
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GSourceCallbackFuncs *callback_funcs;
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const GSourceFuncs *source_funcs;
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guint ref_count;
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GMainContext *context;
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gint priority;
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guint flags;
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guint source_id;
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GSList *poll_fds;
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GSource *prev;
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GSource *next;
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char *name;
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GSourcePrivate *priv;
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};
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struct _GSourceCallbackFuncs
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{
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void (*ref) (gpointer cb_data);
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void (*unref) (gpointer cb_data);
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void (*get) (gpointer cb_data,
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GSource *source,
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GSourceFunc *func,
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gpointer *data);
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};
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/**
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* GSourceDummyMarshal:
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*
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* This is just a placeholder for #GClosureMarshal,
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* which cannot be used here for dependency reasons.
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*/
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typedef void (*GSourceDummyMarshal) (void);
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struct _GSourceFuncs
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{
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gboolean (*prepare) (GSource *source,
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gint *timeout_);
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gboolean (*check) (GSource *source);
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gboolean (*dispatch) (GSource *source,
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GSourceFunc callback,
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gpointer user_data);
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void (*finalize) (GSource *source); /* Can be NULL */
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/*< private >*/
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/* For use by g_source_set_closure */
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GSourceFunc closure_callback;
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GSourceDummyMarshal closure_marshal; /* Really is of type GClosureMarshal */
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};
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/* Standard priorities */
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/**
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* G_PRIORITY_HIGH:
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*
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* Use this for high priority event sources.
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*
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* It is not used within GLib or GTK+.
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*/
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#define G_PRIORITY_HIGH -100
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/**
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* G_PRIORITY_DEFAULT:
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*
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* Use this for default priority event sources.
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*
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* In GLib this priority is used when adding timeout functions
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* with g_timeout_add(). In GDK this priority is used for events
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* from the X server.
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*/
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#define G_PRIORITY_DEFAULT 0
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/**
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* G_PRIORITY_HIGH_IDLE:
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*
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* Use this for high priority idle functions.
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*
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* GTK+ uses #G_PRIORITY_HIGH_IDLE + 10 for resizing operations,
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* and #G_PRIORITY_HIGH_IDLE + 20 for redrawing operations. (This is
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* done to ensure that any pending resizes are processed before any
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* pending redraws, so that widgets are not redrawn twice unnecessarily.)
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*/
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#define G_PRIORITY_HIGH_IDLE 100
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/**
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* G_PRIORITY_DEFAULT_IDLE:
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*
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* Use this for default priority idle functions.
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*
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* In GLib this priority is used when adding idle functions with
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* g_idle_add().
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*/
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#define G_PRIORITY_DEFAULT_IDLE 200
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/**
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* G_PRIORITY_LOW:
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*
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* Use this for very low priority background tasks.
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*
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* It is not used within GLib or GTK+.
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*/
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#define G_PRIORITY_LOW 300
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/**
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* G_SOURCE_REMOVE:
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*
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* Use this macro as the return value of a #GSourceFunc to remove
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* the #GSource from the main loop.
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*
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* Since: 2.32
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*/
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#define G_SOURCE_REMOVE FALSE
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/**
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* G_SOURCE_CONTINUE:
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*
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* Use this macro as the return value of a #GSourceFunc to leave
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* the #GSource in the main loop.
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*
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* Since: 2.32
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*/
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#define G_SOURCE_CONTINUE TRUE
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/* GMainContext: */
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GLIB_AVAILABLE_IN_ALL
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GMainContext *g_main_context_new (void);
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GLIB_AVAILABLE_IN_ALL
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GMainContext *g_main_context_ref (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_unref (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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GMainContext *g_main_context_default (void);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_main_context_iteration (GMainContext *context,
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gboolean may_block);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_main_context_pending (GMainContext *context);
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/* For implementation of legacy interfaces
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*/
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GLIB_AVAILABLE_IN_ALL
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GSource *g_main_context_find_source_by_id (GMainContext *context,
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guint source_id);
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GLIB_AVAILABLE_IN_ALL
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GSource *g_main_context_find_source_by_user_data (GMainContext *context,
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gpointer user_data);
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GLIB_AVAILABLE_IN_ALL
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GSource *g_main_context_find_source_by_funcs_user_data (GMainContext *context,
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GSourceFuncs *funcs,
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gpointer user_data);
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/* Low level functions for implementing custom main loops.
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*/
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_wakeup (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_main_context_acquire (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_release (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_main_context_is_owner (GMainContext *context);
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GLIB_DEPRECATED_IN_2_58_FOR(g_main_context_is_owner)
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gboolean g_main_context_wait (GMainContext *context,
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GCond *cond,
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GMutex *mutex);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_main_context_prepare (GMainContext *context,
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gint *priority);
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GLIB_AVAILABLE_IN_ALL
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gint g_main_context_query (GMainContext *context,
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gint max_priority,
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gint *timeout_,
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GPollFD *fds,
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gint n_fds);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_main_context_check (GMainContext *context,
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gint max_priority,
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GPollFD *fds,
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gint n_fds);
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_dispatch (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_set_poll_func (GMainContext *context,
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GPollFunc func);
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GLIB_AVAILABLE_IN_ALL
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GPollFunc g_main_context_get_poll_func (GMainContext *context);
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/* Low level functions for use by source implementations
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*/
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_add_poll (GMainContext *context,
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GPollFD *fd,
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gint priority);
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_remove_poll (GMainContext *context,
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GPollFD *fd);
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GLIB_AVAILABLE_IN_ALL
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gint g_main_depth (void);
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GLIB_AVAILABLE_IN_ALL
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GSource *g_main_current_source (void);
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/* GMainContexts for other threads
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*/
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_push_thread_default (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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void g_main_context_pop_thread_default (GMainContext *context);
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GLIB_AVAILABLE_IN_ALL
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GMainContext *g_main_context_get_thread_default (void);
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GLIB_AVAILABLE_IN_ALL
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GMainContext *g_main_context_ref_thread_default (void);
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/**
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* GMainContextPusher:
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*
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* Opaque type. See g_main_context_pusher_new() for details.
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*
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* Since: 2.64
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*/
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typedef void GMainContextPusher GLIB_AVAILABLE_TYPE_IN_2_64;
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/**
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* g_main_context_pusher_new:
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* @main_context: (transfer none): a main context to push
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*
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* Push @main_context as the new thread-default main context for the current
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* thread, using g_main_context_push_thread_default(), and return a new
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* #GMainContextPusher. Pop with g_main_context_pusher_free(). Using
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* g_main_context_pop_thread_default() on @main_context while a
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* #GMainContextPusher exists for it can lead to undefined behaviour.
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*
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* Using two #GMainContextPushers in the same scope is not allowed, as it leads
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* to an undefined pop order.
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*
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* This is intended to be used with g_autoptr(). Note that g_autoptr()
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* is only available when using GCC or clang, so the following example
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* will only work with those compilers:
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* |[
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* typedef struct
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* {
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* ...
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* GMainContext *context;
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* ...
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* } MyObject;
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*
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* static void
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* my_object_do_stuff (MyObject *self)
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* {
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* g_autoptr(GMainContextPusher) pusher = g_main_context_pusher_new (self->context);
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*
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* // Code with main context as the thread default here
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*
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* if (cond)
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* // No need to pop
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* return;
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*
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* // Optionally early pop
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* g_clear_pointer (&pusher, g_main_context_pusher_free);
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*
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* // Code with main context no longer the thread default here
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* }
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* ]|
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*
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* Returns: (transfer full): a #GMainContextPusher
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||
* Since: 2.64
|
||
*/
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
GLIB_AVAILABLE_STATIC_INLINE_IN_2_64
|
||
static inline GMainContextPusher *
|
||
g_main_context_pusher_new (GMainContext *main_context)
|
||
{
|
||
g_main_context_push_thread_default (main_context);
|
||
return (GMainContextPusher *) main_context;
|
||
}
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
/**
|
||
* g_main_context_pusher_free:
|
||
* @pusher: (transfer full): a #GMainContextPusher
|
||
*
|
||
* Pop @pusher’s main context as the thread default main context.
|
||
* See g_main_context_pusher_new() for details.
|
||
*
|
||
* This will pop the #GMainContext as the current thread-default main context,
|
||
* but will not call g_main_context_unref() on it.
|
||
*
|
||
* Since: 2.64
|
||
*/
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
GLIB_AVAILABLE_STATIC_INLINE_IN_2_64
|
||
static inline void
|
||
g_main_context_pusher_free (GMainContextPusher *pusher)
|
||
{
|
||
g_main_context_pop_thread_default ((GMainContext *) pusher);
|
||
}
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
/* GMainLoop: */
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GMainLoop *g_main_loop_new (GMainContext *context,
|
||
gboolean is_running);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_main_loop_run (GMainLoop *loop);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_main_loop_quit (GMainLoop *loop);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GMainLoop *g_main_loop_ref (GMainLoop *loop);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_main_loop_unref (GMainLoop *loop);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_main_loop_is_running (GMainLoop *loop);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GMainContext *g_main_loop_get_context (GMainLoop *loop);
|
||
|
||
/* GSource: */
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GSource *g_source_new (GSourceFuncs *source_funcs,
|
||
guint struct_size);
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
GLIB_AVAILABLE_IN_2_64
|
||
void g_source_set_dispose_function (GSource *source,
|
||
GSourceDisposeFunc dispose);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GSource *g_source_ref (GSource *source);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_unref (GSource *source);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_source_attach (GSource *source,
|
||
GMainContext *context);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_destroy (GSource *source);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_priority (GSource *source,
|
||
gint priority);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gint g_source_get_priority (GSource *source);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_can_recurse (GSource *source,
|
||
gboolean can_recurse);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_source_get_can_recurse (GSource *source);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_source_get_id (GSource *source);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GMainContext *g_source_get_context (GSource *source);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_callback (GSource *source,
|
||
GSourceFunc func,
|
||
gpointer data,
|
||
GDestroyNotify notify);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_funcs (GSource *source,
|
||
GSourceFuncs *funcs);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_source_is_destroyed (GSource *source);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_name (GSource *source,
|
||
const char *name);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
const char * g_source_get_name (GSource *source);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_name_by_id (guint tag,
|
||
const char *name);
|
||
|
||
GLIB_AVAILABLE_IN_2_36
|
||
void g_source_set_ready_time (GSource *source,
|
||
gint64 ready_time);
|
||
GLIB_AVAILABLE_IN_2_36
|
||
gint64 g_source_get_ready_time (GSource *source);
|
||
|
||
#ifdef G_OS_UNIX
|
||
GLIB_AVAILABLE_IN_2_36
|
||
gpointer g_source_add_unix_fd (GSource *source,
|
||
gint fd,
|
||
GIOCondition events);
|
||
GLIB_AVAILABLE_IN_2_36
|
||
void g_source_modify_unix_fd (GSource *source,
|
||
gpointer tag,
|
||
GIOCondition new_events);
|
||
GLIB_AVAILABLE_IN_2_36
|
||
void g_source_remove_unix_fd (GSource *source,
|
||
gpointer tag);
|
||
GLIB_AVAILABLE_IN_2_36
|
||
GIOCondition g_source_query_unix_fd (GSource *source,
|
||
gpointer tag);
|
||
#endif
|
||
|
||
/* Used to implement g_source_connect_closure and internally*/
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_set_callback_indirect (GSource *source,
|
||
gpointer callback_data,
|
||
GSourceCallbackFuncs *callback_funcs);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_add_poll (GSource *source,
|
||
GPollFD *fd);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_remove_poll (GSource *source,
|
||
GPollFD *fd);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_add_child_source (GSource *source,
|
||
GSource *child_source);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_source_remove_child_source (GSource *source,
|
||
GSource *child_source);
|
||
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
GLIB_DEPRECATED_IN_2_28_FOR(g_source_get_time)
|
||
void g_source_get_current_time (GSource *source,
|
||
GTimeVal *timeval);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gint64 g_source_get_time (GSource *source);
|
||
|
||
/* void g_source_connect_closure (GSource *source,
|
||
GClosure *closure);
|
||
*/
|
||
|
||
/* Specific source types
|
||
*/
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GSource *g_idle_source_new (void);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GSource *g_child_watch_source_new (GPid pid);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GSource *g_timeout_source_new (guint interval);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
GSource *g_timeout_source_new_seconds (guint interval);
|
||
|
||
/* Miscellaneous functions
|
||
*/
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
GLIB_DEPRECATED_IN_2_62_FOR(g_get_real_time)
|
||
void g_get_current_time (GTimeVal *result);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gint64 g_get_monotonic_time (void);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gint64 g_get_real_time (void);
|
||
|
||
|
||
/* Source manipulation by ID */
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_source_remove (guint tag);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_source_remove_by_user_data (gpointer user_data);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_source_remove_by_funcs_user_data (GSourceFuncs *funcs,
|
||
gpointer user_data);
|
||
|
||
/**
|
||
* GClearHandleFunc:
|
||
* @handle_id: the handle ID to clear
|
||
*
|
||
* Specifies the type of function passed to g_clear_handle_id().
|
||
* The implementation is expected to free the resource identified
|
||
* by @handle_id; for instance, if @handle_id is a #GSource ID,
|
||
* g_source_remove() can be used.
|
||
*
|
||
* Since: 2.56
|
||
*/
|
||
typedef void (* GClearHandleFunc) (guint handle_id);
|
||
|
||
GLIB_AVAILABLE_IN_2_56
|
||
void g_clear_handle_id (guint *tag_ptr,
|
||
GClearHandleFunc clear_func);
|
||
|
||
#define g_clear_handle_id(tag_ptr, clear_func) \
|
||
G_STMT_START { \
|
||
G_STATIC_ASSERT (sizeof *(tag_ptr) == sizeof (guint)); \
|
||
guint *_tag_ptr = (guint *) (tag_ptr); \
|
||
guint _handle_id; \
|
||
\
|
||
_handle_id = *_tag_ptr; \
|
||
if (_handle_id > 0) \
|
||
{ \
|
||
*_tag_ptr = 0; \
|
||
clear_func (_handle_id); \
|
||
} \
|
||
} G_STMT_END \
|
||
GLIB_AVAILABLE_MACRO_IN_2_56
|
||
|
||
/* Idles, child watchers and timeouts */
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_timeout_add_full (gint priority,
|
||
guint interval,
|
||
GSourceFunc function,
|
||
gpointer data,
|
||
GDestroyNotify notify);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_timeout_add (guint interval,
|
||
GSourceFunc function,
|
||
gpointer data);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_timeout_add_seconds_full (gint priority,
|
||
guint interval,
|
||
GSourceFunc function,
|
||
gpointer data,
|
||
GDestroyNotify notify);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_timeout_add_seconds (guint interval,
|
||
GSourceFunc function,
|
||
gpointer data);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_child_watch_add_full (gint priority,
|
||
GPid pid,
|
||
GChildWatchFunc function,
|
||
gpointer data,
|
||
GDestroyNotify notify);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_child_watch_add (GPid pid,
|
||
GChildWatchFunc function,
|
||
gpointer data);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_idle_add (GSourceFunc function,
|
||
gpointer data);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
guint g_idle_add_full (gint priority,
|
||
GSourceFunc function,
|
||
gpointer data,
|
||
GDestroyNotify notify);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
gboolean g_idle_remove_by_data (gpointer data);
|
||
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_main_context_invoke_full (GMainContext *context,
|
||
gint priority,
|
||
GSourceFunc function,
|
||
gpointer data,
|
||
GDestroyNotify notify);
|
||
GLIB_AVAILABLE_IN_ALL
|
||
void g_main_context_invoke (GMainContext *context,
|
||
GSourceFunc function,
|
||
gpointer data);
|
||
|
||
GLIB_AVAILABLE_STATIC_INLINE_IN_2_70
|
||
static inline int
|
||
g_steal_fd (int *fd_ptr)
|
||
{
|
||
int fd = *fd_ptr;
|
||
*fd_ptr = -1;
|
||
return fd;
|
||
}
|
||
|
||
/* Hook for GClosure / GSource integration. Don't touch */
|
||
GLIB_VAR GSourceFuncs g_timeout_funcs;
|
||
GLIB_VAR GSourceFuncs g_child_watch_funcs;
|
||
GLIB_VAR GSourceFuncs g_idle_funcs;
|
||
#ifdef G_OS_UNIX
|
||
GLIB_VAR GSourceFuncs g_unix_signal_funcs;
|
||
GLIB_VAR GSourceFuncs g_unix_fd_source_funcs;
|
||
#endif
|
||
|
||
G_END_DECLS
|
||
|
||
#endif /* __G_MAIN_H__ */
|