mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-10 11:26:16 +01:00
70a7a7654e
Tue Dec 12 15:18:10 2000 Owen Taylor <otaylor@redhat.com> * gmain.[ch]: Revert unauthorized changes.
287 lines
9.2 KiB
C
287 lines
9.2 KiB
C
/* gmain.h - the GLib Main loop
|
|
* Copyright (C) 1998-2000 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __G_MAIN_H__
|
|
#define __G_MAIN_H__
|
|
|
|
#include <gslist.h>
|
|
#include <gthread.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _GMainContext GMainContext; /* Opaque */
|
|
typedef struct _GMainLoop GMainLoop; /* Opaque */
|
|
typedef struct _GSource GSource;
|
|
typedef struct _GSourceCallbackFuncs GSourceCallbackFuncs;
|
|
typedef struct _GSourceFuncs GSourceFuncs;
|
|
|
|
typedef gboolean (*GSourceFunc) (gpointer data);
|
|
|
|
struct _GSource
|
|
{
|
|
/*< private >*/
|
|
gpointer callback_data;
|
|
GSourceCallbackFuncs *callback_funcs;
|
|
|
|
GSourceFuncs *source_funcs;
|
|
guint ref_count;
|
|
|
|
GMainContext *context;
|
|
|
|
gint priority;
|
|
guint flags;
|
|
guint id;
|
|
|
|
GSList *poll_fds;
|
|
|
|
GSource *prev;
|
|
GSource *next;
|
|
};
|
|
|
|
struct _GSourceCallbackFuncs
|
|
{
|
|
void (*ref) (gpointer cb_data);
|
|
void (*unref) (gpointer cb_data);
|
|
void (*get) (gpointer cb_data,
|
|
GSourceFunc *func,
|
|
gpointer *data);
|
|
};
|
|
|
|
struct _GSourceFuncs
|
|
{
|
|
gboolean (*prepare) (GSource *source,
|
|
gint *timeout);
|
|
gboolean (*check) (GSource *source);
|
|
gboolean (*dispatch) (GSource *source,
|
|
GSourceFunc callback,
|
|
gpointer user_data);
|
|
void (*destroy) (GSource *source); /* Can be NULL */
|
|
};
|
|
|
|
/* Any definitions using GPollFD or GPollFunc are primarily
|
|
* for Unix and not guaranteed to be the compatible on all
|
|
* operating systems on which GLib runs. Right now, the
|
|
* GLib does use these functions on Win32 as well, but interprets
|
|
* them in a fairly different way than on Unix. If you use
|
|
* these definitions, you are should be prepared to recode
|
|
* for different operating systems.
|
|
*
|
|
*
|
|
* On Win32, the fd in a GPollFD should be Win32 HANDLE (*not* a file
|
|
* descriptor as provided by the C runtime) that can be used by
|
|
* MsgWaitForMultipleObjects. This does *not* include file handles
|
|
* from CreateFile, SOCKETs, nor pipe handles. (But you can use
|
|
* WSAEventSelect to signal events when a SOCKET is readable).
|
|
*
|
|
* On Win32, fd can also be the special value G_WIN32_MSG_HANDLE to
|
|
* indicate polling for messages. These message queue GPollFDs should
|
|
* be added with the g_main_poll_win32_msg_add function.
|
|
*
|
|
* But note that G_WIN32_MSG_HANDLE GPollFDs should not be used by GDK
|
|
* (GTK) programs, as GDK itself wants to read messages and convert them
|
|
* to GDK events.
|
|
*
|
|
* So, unless you really know what you are doing, it's best not to try
|
|
* to use the main loop polling stuff for your own needs on
|
|
* Win32. It's really only written for the GIMP's needs so
|
|
* far.
|
|
*/
|
|
typedef struct _GPollFD GPollFD;
|
|
typedef gint (*GPollFunc) (GPollFD *ufds,
|
|
guint nfsd,
|
|
gint timeout);
|
|
|
|
struct _GPollFD
|
|
{
|
|
gint fd;
|
|
gushort events;
|
|
gushort revents;
|
|
};
|
|
|
|
/* Standard priorities */
|
|
|
|
#define G_PRIORITY_HIGH -100
|
|
#define G_PRIORITY_DEFAULT 0
|
|
#define G_PRIORITY_HIGH_IDLE 100
|
|
#define G_PRIORITY_DEFAULT_IDLE 200
|
|
#define G_PRIORITY_LOW 300
|
|
|
|
/* GMainContext: */
|
|
|
|
GMainContext *g_main_context_get (GThread *thread);
|
|
GMainContext *g_main_context_default (void);
|
|
|
|
gboolean g_main_context_iteration (GMainContext *context,
|
|
gboolean may_block);
|
|
gboolean g_main_context_pending (GMainContext *context);
|
|
|
|
/* For implementation of legacy interfaces
|
|
*/
|
|
GSource *g_main_context_find_source_by_id (GMainContext *context,
|
|
guint id);
|
|
GSource *g_main_context_find_source_by_user_data (GMainContext *context,
|
|
gpointer user_data);
|
|
GSource *g_main_context_find_source_by_funcs_user_data (GMainContext *context,
|
|
GSourceFuncs *funcs,
|
|
gpointer user_data);
|
|
|
|
/* Low level functions for implementing custom main loops.
|
|
*/
|
|
gboolean g_main_context_prepare (GMainContext *context,
|
|
gint *priority);
|
|
gint g_main_context_query (GMainContext *context,
|
|
gint max_priority,
|
|
gint *timeout,
|
|
GPollFD *fds,
|
|
gint n_fds);
|
|
gint g_main_context_check (GMainContext *context,
|
|
gint max_priority,
|
|
GPollFD *fds,
|
|
gint n_fds);
|
|
void g_main_context_dispatch (GMainContext *context);
|
|
|
|
void g_main_context_set_poll_func (GMainContext *context,
|
|
GPollFunc func);
|
|
GPollFunc g_main_context_get_poll_func (GMainContext *context);
|
|
|
|
/* Low level functions for use by source implementations
|
|
*/
|
|
void g_main_context_add_poll (GMainContext *context,
|
|
GPollFD *fd,
|
|
gint priority);
|
|
void g_main_context_remove_poll (GMainContext *context,
|
|
GPollFD *fd);
|
|
|
|
/* GMainLoop: */
|
|
|
|
GMainLoop *g_main_loop_new (GMainContext *context,
|
|
gboolean is_running);
|
|
void g_main_loop_run (GMainLoop *loop);
|
|
void g_main_loop_quit (GMainLoop *loop);
|
|
void g_main_loop_destroy (GMainLoop *loop);
|
|
gboolean g_main_loop_is_running (GMainLoop *loop);
|
|
|
|
/* GSource: */
|
|
|
|
GSource *g_source_new (GSourceFuncs *source_funcs,
|
|
guint struct_size);
|
|
GSource *g_source_ref (GSource *source);
|
|
void g_source_unref (GSource *source);
|
|
|
|
guint g_source_attach (GSource *source,
|
|
GMainContext *context);
|
|
void g_source_destroy (GSource *source);
|
|
|
|
void g_source_set_priority (GSource *source,
|
|
gint priority);
|
|
gint g_source_get_priority (GSource *source);
|
|
void g_source_set_can_recurse (GSource *source,
|
|
gboolean can_recurse);
|
|
gboolean g_source_get_can_recurse (GSource *source);
|
|
guint g_source_get_id (GSource *source);
|
|
|
|
GMainContext *g_source_get_context (GSource *source);
|
|
|
|
void g_source_set_callback (GSource *source,
|
|
GSourceFunc func,
|
|
gpointer data,
|
|
GDestroyNotify notify);
|
|
|
|
|
|
/* Used to implement g_source_connect_closure and internally*/
|
|
void g_source_set_callback_indirect (GSource *source,
|
|
gpointer callback_data,
|
|
GSourceCallbackFuncs *callback_funcs);
|
|
|
|
void g_source_add_poll (GSource *source,
|
|
GPollFD *fd);
|
|
void g_source_remove_poll (GSource *source,
|
|
GPollFD *fd);
|
|
|
|
void g_source_get_current_time (GSource *source,
|
|
GTimeVal *timeval);
|
|
|
|
/* void g_source_connect_closure (GSource *source,
|
|
GClosure *closure);
|
|
*/
|
|
|
|
/* Specific source types
|
|
*/
|
|
GSource *g_idle_source_new (void);
|
|
GSource *g_timeout_source_new (guint interval);
|
|
|
|
/* Miscellaneous functions
|
|
*/
|
|
void g_get_current_time (GTimeVal *result);
|
|
|
|
/* ============== Compat main loop stuff ================== */
|
|
|
|
/* Legacy names for GMainLoop functions
|
|
*/
|
|
#define g_main_new(is_running) g_main_loop_new (NULL, is_running);
|
|
#define g_main_run(loop) g_main_loop_run(loop)
|
|
#define g_main_quit(loop) g_main_loop_quit(loop)
|
|
#define g_main_destroy(loop) g_main_loop_destroy(loop)
|
|
#define g_main_is_running(loop) g_main_loop_is_running(loop)
|
|
|
|
/* Source manipulation by ID */
|
|
gboolean g_source_remove (guint tag);
|
|
gboolean g_source_remove_by_user_data (gpointer user_data);
|
|
gboolean g_source_remove_by_funcs_user_data (GSourceFuncs *funcs,
|
|
gpointer user_data);
|
|
|
|
/* Functions to manipulate the default main loop
|
|
*/
|
|
|
|
#define g_main_iteration(may_block) g_main_context_iteration (NULL, may_block)
|
|
#define g_main_pending() g_main_context_pending (NULL)
|
|
|
|
#define g_main_set_poll_func(func) g_main_context_set_poll_func (NULL, func)
|
|
|
|
/* Idles and timeouts */
|
|
guint g_timeout_add_full (gint priority,
|
|
guint interval,
|
|
GSourceFunc function,
|
|
gpointer data,
|
|
GDestroyNotify notify);
|
|
guint g_timeout_add (guint interval,
|
|
GSourceFunc function,
|
|
gpointer data);
|
|
guint g_idle_add (GSourceFunc function,
|
|
gpointer data);
|
|
guint g_idle_add_full (gint priority,
|
|
GSourceFunc function,
|
|
gpointer data,
|
|
GDestroyNotify notify);
|
|
gboolean g_idle_remove_by_data (gpointer data);
|
|
|
|
#ifdef G_OS_WIN32
|
|
|
|
/* This is used to add polling for Windows messages. GDK (GTK+) programs
|
|
* should *not* use this.
|
|
*/
|
|
void g_main_poll_win32_msg_add (gint priority,
|
|
GPollFD *fd,
|
|
guint hwnd);
|
|
#endif /* G_OS_WIN32 */
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __G_MAIN_H__ */
|