author | hgs |
Tue, 02 Nov 2010 19:23:22 +0530 | |
changeset 79 | 564bc7b7ad27 |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/* gmain.h - the GLib Main loop |
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* Copyright (C) 1998-2000 Red Hat, Inc. |
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* Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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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 Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 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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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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#ifndef __G_MAIN_H__ |
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#define __G_MAIN_H__ |
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#include <_ansi.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 struct _GMainContext GMainContext; /* Opaque */ |
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typedef struct _GMainLoop GMainLoop; /* Opaque */ |
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typedef struct _GSource GSource; |
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typedef struct _GSourceCallbackFuncs GSourceCallbackFuncs; |
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typedef struct _GSourceFuncs GSourceFuncs; |
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typedef gboolean (*GSourceFunc) (gpointer data); |
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typedef void (*GChildWatchFunc) (GPid pid, |
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gint status, |
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gpointer data); |
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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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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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gpointer reserved1; |
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gpointer reserved2; |
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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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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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/* 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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/* Any definitions using GPollFD or GPollFunc are primarily |
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* for Unix and not guaranteed to be the compatible on all |
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* operating systems on which GLib runs. Right now, the |
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* GLib does use these functions on Win32 as well, but interprets |
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* them in a fairly different way than on Unix. If you use |
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* these definitions, you are should be prepared to recode |
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* for different operating systems. |
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* |
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* |
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* On Win32, the fd in a GPollFD should be Win32 HANDLE (*not* a file |
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* descriptor as provided by the C runtime) that can be used by |
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* MsgWaitForMultipleObjects. This does *not* include file handles |
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* from CreateFile, SOCKETs, nor pipe handles. (But you can use |
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* WSAEventSelect to signal events when a SOCKET is readable). |
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* |
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* On Win32, fd can also be the special value G_WIN32_MSG_HANDLE to |
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* indicate polling for messages. |
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* |
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* But note that G_WIN32_MSG_HANDLE GPollFDs should not be used by GDK |
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* (GTK) programs, as GDK itself wants to read messages and convert them |
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* to GDK events. |
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* |
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* So, unless you really know what you are doing, it's best not to try |
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* to use the main loop polling stuff for your own needs on |
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* Win32. It's really only written for the GIMP's needs so |
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* far. |
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*/ |
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typedef struct _GPollFD GPollFD; |
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typedef gint (*GPollFunc) (GPollFD *ufds, |
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guint nfsd, |
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gint timeout_); |
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|
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struct _GPollFD |
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{ |
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gint fd; |
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gushort events; |
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gushort revents; |
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}; |
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|
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/* Standard priorities */ |
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|
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#define G_PRIORITY_HIGH -100 |
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#define G_PRIORITY_DEFAULT 0 |
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#define G_PRIORITY_HIGH_IDLE 100 |
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#define G_PRIORITY_DEFAULT_IDLE 200 |
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#define G_PRIORITY_LOW 300 |
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|
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/* GMainContext: */ |
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|
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IMPORT_C GMainContext *g_main_context_new (void); |
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IMPORT_C GMainContext *g_main_context_ref (GMainContext *context); |
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IMPORT_C void g_main_context_unref (GMainContext *context); |
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IMPORT_C GMainContext *g_main_context_default (void); |
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|
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IMPORT_C gboolean g_main_context_iteration (GMainContext *context, |
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gboolean may_block); |
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IMPORT_C gboolean g_main_context_pending (GMainContext *context); |
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|
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/* For implementation of legacy interfaces |
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*/ |
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IMPORT_C GSource *g_main_context_find_source_by_id (GMainContext *context, |
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guint source_id); |
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IMPORT_C GSource *g_main_context_find_source_by_user_data (GMainContext *context, |
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gpointer user_data); |
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IMPORT_C 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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|
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/* Low level functions for implementing custom main loops. |
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*/ |
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IMPORT_C void g_main_context_wakeup (GMainContext *context); |
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IMPORT_C gboolean g_main_context_acquire (GMainContext *context); |
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IMPORT_C void g_main_context_release (GMainContext *context); |
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IMPORT_C gboolean g_main_context_is_owner (GMainContext *context); |
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IMPORT_C gboolean g_main_context_wait (GMainContext *context, |
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GCond *cond, |
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GMutex *mutex); |
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|
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IMPORT_C gboolean g_main_context_prepare (GMainContext *context, |
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gint *priority); |
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IMPORT_C 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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IMPORT_C gint 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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IMPORT_C void g_main_context_dispatch (GMainContext *context); |
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181 |
|
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IMPORT_C void g_main_context_set_poll_func (GMainContext *context, |
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GPollFunc func); |
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IMPORT_C GPollFunc g_main_context_get_poll_func (GMainContext *context); |
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|
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/* Low level functions for use by source implementations |
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*/ |
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IMPORT_C void g_main_context_add_poll (GMainContext *context, |
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GPollFD *fd, |
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gint priority); |
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IMPORT_C void g_main_context_remove_poll (GMainContext *context, |
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GPollFD *fd); |
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|
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IMPORT_C int g_main_depth (void); |
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|
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/* GMainLoop: */ |
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|
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IMPORT_C GMainLoop *g_main_loop_new (GMainContext *context, |
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gboolean is_running); |
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IMPORT_C void g_main_loop_run (GMainLoop *loop); |
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IMPORT_C void g_main_loop_quit (GMainLoop *loop); |
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IMPORT_C GMainLoop *g_main_loop_ref (GMainLoop *loop); |
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IMPORT_C void g_main_loop_unref (GMainLoop *loop); |
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IMPORT_C gboolean g_main_loop_is_running (GMainLoop *loop); |
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IMPORT_C GMainContext *g_main_loop_get_context (GMainLoop *loop); |
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/* GSource: */ |
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IMPORT_C GSource *g_source_new (GSourceFuncs *source_funcs, |
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guint struct_size); |
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IMPORT_C GSource *g_source_ref (GSource *source); |
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IMPORT_C void g_source_unref (GSource *source); |
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IMPORT_C guint g_source_attach (GSource *source, |
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GMainContext *context); |
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IMPORT_C void g_source_destroy (GSource *source); |
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IMPORT_C void g_source_set_priority (GSource *source, |
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gint priority); |
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IMPORT_C gint g_source_get_priority (GSource *source); |
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IMPORT_C void g_source_set_can_recurse (GSource *source, |
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gboolean can_recurse); |
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IMPORT_C gboolean g_source_get_can_recurse (GSource *source); |
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IMPORT_C guint g_source_get_id (GSource *source); |
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IMPORT_C GMainContext *g_source_get_context (GSource *source); |
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IMPORT_C void g_source_set_callback (GSource *source, |
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GSourceFunc func, |
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gpointer data, |
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GDestroyNotify notify); |
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/* Used to implement g_source_connect_closure and internally*/ |
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IMPORT_C void g_source_set_callback_indirect (GSource *source, |
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gpointer callback_data, |
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GSourceCallbackFuncs *callback_funcs); |
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IMPORT_C void g_source_add_poll (GSource *source, |
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GPollFD *fd); |
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IMPORT_C void g_source_remove_poll (GSource *source, |
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GPollFD *fd); |
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IMPORT_C void g_source_get_current_time (GSource *source, |
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GTimeVal *timeval); |
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/* void g_source_connect_closure (GSource *source, |
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GClosure *closure); |
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*/ |
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/* Specific source types |
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*/ |
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IMPORT_C GSource *g_idle_source_new (void); |
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IMPORT_C GSource *g_child_watch_source_new (GPid pid); |
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IMPORT_C GSource *g_timeout_source_new (guint interval); |
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/* Miscellaneous functions |
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*/ |
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IMPORT_C void g_get_current_time (GTimeVal *result); |
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/* ============== Compat main loop stuff ================== */ |
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#ifndef G_DISABLE_DEPRECATED |
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/* Legacy names for GMainLoop functions |
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*/ |
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#define g_main_new(is_running) g_main_loop_new (NULL, is_running); |
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#define g_main_run(loop) g_main_loop_run(loop) |
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#define g_main_quit(loop) g_main_loop_quit(loop) |
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#define g_main_destroy(loop) g_main_loop_unref(loop) |
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#define g_main_is_running(loop) g_main_loop_is_running(loop) |
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/* Functions to manipulate the default main loop |
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*/ |
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#define g_main_iteration(may_block) g_main_context_iteration (NULL, may_block) |
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#define g_main_pending() g_main_context_pending (NULL) |
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#define g_main_set_poll_func(func) g_main_context_set_poll_func (NULL, func) |
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#endif /* G_DISABLE_DEPRECATED */ |
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/* Source manipulation by ID */ |
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IMPORT_C gboolean g_source_remove (guint tag); |
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IMPORT_C gboolean g_source_remove_by_user_data (gpointer user_data); |
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IMPORT_C gboolean g_source_remove_by_funcs_user_data (GSourceFuncs *funcs, |
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gpointer user_data); |
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/* Idles, child watchers and timeouts */ |
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IMPORT_C guint g_timeout_add_full (gint priority, |
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guint interval, |
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GSourceFunc function, |
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gpointer data, |
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GDestroyNotify notify); |
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IMPORT_C guint g_timeout_add (guint interval, |
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GSourceFunc function, |
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gpointer data); |
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IMPORT_C guint g_child_watch_add_full (gint priority, |
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GPid pid, |
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GChildWatchFunc function, |
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gpointer data, |
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GDestroyNotify notify); |
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IMPORT_C guint g_child_watch_add (GPid pid, |
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GChildWatchFunc function, |
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gpointer data); |
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IMPORT_C guint g_idle_add (GSourceFunc function, |
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gpointer data); |
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IMPORT_C guint g_idle_add_full (gint priority, |
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GSourceFunc function, |
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gpointer data, |
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GDestroyNotify notify); |
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IMPORT_C gboolean g_idle_remove_by_data (gpointer data); |
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/* Hook for GClosure / GSource integration. Don't touch */ |
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#ifdef __SYMBIAN32__ |
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IMPORT_C GSourceFuncs * _g_timeout_funcs(); |
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#endif /*__SYMBIAN32__ */ |
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GLIB_VAR GSourceFuncs g_timeout_funcs; |
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#ifdef __SYMBIAN32__ |
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IMPORT_C GSourceFuncs * _g_child_watch_funcs(); |
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#endif /* __SYMBIAN32__ */ |
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GLIB_VAR GSourceFuncs g_child_watch_funcs; |
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#ifdef __SYMBIAN32__ |
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IMPORT_C GSourceFuncs * _g_idle_funcs(); |
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#endif/* __SYMBIAN32__ */ |
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GLIB_VAR GSourceFuncs g_idle_funcs; |
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G_END_DECLS |
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#endif /* __G_MAIN_H__ */ |