glib/gmain.h

   1 /* gmain.h - the GLib Main loop
   2  * Copyright (C) 1998-2000 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef __G_MAIN_H__
  19 #define __G_MAIN_H__
  20
  21 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  22 #error "Only <glib.h> can be included directly."
  23 #endif
  24
  25 #include <glib/gpoll.h>
  26 #include <glib/gslist.h>
  27 #include <glib/gthread.h>
  28
  29 G_BEGIN_DECLS
  30
  31 typedef enum /*< flags >*/
  32 {
  33   G_IO_IN       GLIB_SYSDEF_POLLIN,
  34   G_IO_OUT      GLIB_SYSDEF_POLLOUT,
  35   G_IO_PRI      GLIB_SYSDEF_POLLPRI,
  36   G_IO_ERR      GLIB_SYSDEF_POLLERR,
  37   G_IO_HUP      GLIB_SYSDEF_POLLHUP,
  38   G_IO_NVAL     GLIB_SYSDEF_POLLNVAL
  39 } GIOCondition;
  40
  41
  42 /**
  43  * GMainContext:
  44  *
  45  * The `GMainContext` struct is an opaque data
  46  * type representing a set of sources to be handled in a main loop.
  47  */
  48 typedef struct _GMainContext            GMainContext;
  49
  50 /**
  51  * GMainLoop:
  52  *
  53  * The `GMainLoop` struct is an opaque data type
  54  * representing the main event loop of a GLib or GTK+ application.
  55  */
  56 typedef struct _GMainLoop               GMainLoop;
  57
  58 /**
  59  * GSource:
  60  *
  61  * The `GSource` struct is an opaque data type
  62  * representing an event source.
  63  */
  64 typedef struct _GSource                 GSource;
  65 typedef struct _GSourcePrivate          GSourcePrivate;
  66
  67 /**
  68  * GSourceCallbackFuncs:
  69  * @ref: Called when a reference is added to the callback object
  70  * @unref: Called when a reference to the callback object is dropped
  71  * @get: Called to extract the callback function and data from the
  72  *     callback object.
  73
  74  * The `GSourceCallbackFuncs` struct contains
  75  * functions for managing callback objects.
  76  */
  77 typedef struct _GSourceCallbackFuncs    GSourceCallbackFuncs;
  78
  79 /**
  80  * GSourceFuncs:
  81  * @prepare: Called before all the file descriptors are polled. If the
  82  *     source can determine that it is ready here (without waiting for the
  83  *     results of the poll() call) it should return %TRUE. It can also return
  84  *     a @timeout_ value which should be the maximum timeout (in milliseconds)
  85  *     which should be passed to the poll() call. The actual timeout used will
  86  *     be -1 if all sources returned -1, or it will be the minimum of all
  87  *     the @timeout_ values returned which were >= 0.  Since 2.36 this may
  88  *     be %NULL, in which case the effect is as if the function always returns
  89  *     %FALSE with a timeout of -1.  If @prepare returns a
  90  *     timeout and the source also has a 'ready time' set then the
  91  *     nearer of the two will be used.
  92  * @check: Called after all the file descriptors are polled. The source
  93  *     should return %TRUE if it is ready to be dispatched. Note that some
  94  *     time may have passed since the previous prepare function was called,
  95  *     so the source should be checked again here.  Since 2.36 this may
  96  *     be %NULL, in which case the effect is as if the function always returns
  97  *     %FALSE.
  98  * @dispatch: Called to dispatch the event source, after it has returned
  99  *     %TRUE in either its @prepare or its @check function. The @dispatch
 100  *     function is passed in a callback function and data. The callback
 101  *     function may be %NULL if the source was never connected to a callback
 102  *     using g_source_set_callback(). The @dispatch function should call the
 103  *     callback function with @user_data and whatever additional parameters
 104  *     are needed for this type of event source. The return value of the
 105  *     @dispatch function should be #G_SOURCE_REMOVE if the source should be
 106  *     removed or #G_SOURCE_CONTINUE to keep it.
 107  * @finalize: Called when the source is finalized.
 108  *
 109  * The `GSourceFuncs` struct contains a table of
 110  * functions used to handle event sources in a generic manner.
 111  *
 112  * For idle sources, the prepare and check functions always return %TRUE
 113  * to indicate that the source is always ready to be processed. The prepare
 114  * function also returns a timeout value of 0 to ensure that the poll() call
 115  * doesn't block (since that would be time wasted which could have been spent
 116  * running the idle function).
 117  *
 118  * For timeout sources, the prepare and check functions both return %TRUE
 119  * if the timeout interval has expired. The prepare function also returns
 120  * a timeout value to ensure that the poll() call doesn't block too long
 121  * and miss the next timeout.
 122  *
 123  * For file descriptor sources, the prepare function typically returns %FALSE,
 124  * since it must wait until poll() has been called before it knows whether
 125  * any events need to be processed. It sets the returned timeout to -1 to
 126  * indicate that it doesn't mind how long the poll() call blocks. In the
 127  * check function, it tests the results of the poll() call to see if the
 128  * required condition has been met, and returns %TRUE if so.
 129  */
 130 typedef struct _GSourceFuncs            GSourceFuncs;
 131
 132 /**
 133  * GPid:
 134  *
 135  * A type which is used to hold a process identification.
 136  *
 137  * On UNIX, processes are identified by a process id (an integer),
 138  * while Windows uses process handles (which are pointers).
 139  *
 140  * GPid is used in GLib only for descendant processes spawned with
 141  * the g_spawn functions.
 142  */
 143 /* defined in glibconfig.h */
 144
 145 /**
 146  * G_PID_FORMAT:
 147  *
 148  * A format specifier that can be used in printf()-style format strings
 149  * when printing a #GPid.
 150  *
 151  * Since: 2.50
 152  */
 153 /* defined in glibconfig.h */
 154
 155 /**
 156  * GSourceFunc:
 157  * @user_data: data passed to the function, set when the source was
 158  *     created with one of the above functions
 159  *
 160  * Specifies the type of function passed to g_timeout_add(),
 161  * g_timeout_add_full(), g_idle_add(), and g_idle_add_full().
 162  *
 163  * Returns: %FALSE if the source should be removed. #G_SOURCE_CONTINUE and
 164  * #G_SOURCE_REMOVE are more memorable names for the return value.
 165  */
 166 typedef gboolean (*GSourceFunc)       (gpointer user_data);
 167
 168 /**
 169  * GChildWatchFunc:
 170  * @pid: the process id of the child process
 171  * @status: Status information about the child process, encoded
 172  *     in a platform-specific manner
 173  * @user_data: user data passed to g_child_watch_add()
 174  *
 175  * Prototype of a #GChildWatchSource callback, called when a child
 176  * process has exited.  To interpret @status, see the documentation
 177  * for g_spawn_check_exit_status().
 178  */
 179 typedef void     (*GChildWatchFunc)   (GPid     pid,
 180                                        gint     status,
 181                                        gpointer user_data);
 182 struct _GSource
 183 {
 184   /*< private >*/
 185   gpointer callback_data;
 186   GSourceCallbackFuncs *callback_funcs;
 187
 188   const GSourceFuncs *source_funcs;
 189   guint ref_count;
 190
 191   GMainContext *context;
 192
 193   gint priority;
 194   guint flags;
 195   guint source_id;
 196
 197   GSList *poll_fds;
 198
 199   GSource *prev;
 200   GSource *next;
 201
 202   char    *name;
 203
 204   GSourcePrivate *priv;
 205 };
 206
 207 struct _GSourceCallbackFuncs
 208 {
 209   void (*ref)   (gpointer     cb_data);
 210   void (*unref) (gpointer     cb_data);
 211   void (*get)   (gpointer     cb_data,
 212                  GSource     *source,
 213                  GSourceFunc *func,
 214                  gpointer    *data);
 215 };
 216
 217 /**
 218  * GSourceDummyMarshal:
 219  *
 220  * This is just a placeholder for #GClosureMarshal,
 221  * which cannot be used here for dependency reasons.
 222  */
 223 typedef void (*GSourceDummyMarshal) (void);
 224
 225 struct _GSourceFuncs
 226 {
 227   gboolean (*prepare)  (GSource    *source,
 228                         gint       *timeout_);
 229   gboolean (*check)    (GSource    *source);
 230   gboolean (*dispatch) (GSource    *source,
 231                         GSourceFunc callback,
 232                         gpointer    user_data);
 233   void     (*finalize) (GSource    *source); /* Can be NULL */
 234
 235   /*< private >*/
 236   /* For use by g_source_set_closure */
 237   GSourceFunc     closure_callback;
 238   GSourceDummyMarshal closure_marshal; /* Really is of type GClosureMarshal */
 239 };
 240
 241 /* Standard priorities */
 242
 243 /**
 244  * G_PRIORITY_HIGH:
 245  *
 246  * Use this for high priority event sources.
 247  *
 248  * It is not used within GLib or GTK+.
 249  */
 250 #define G_PRIORITY_HIGH            -100
 251
 252 /**
 253  * G_PRIORITY_DEFAULT:
 254  *
 255  * Use this for default priority event sources.
 256  *
 257  * In GLib this priority is used when adding timeout functions
 258  * with g_timeout_add(). In GDK this priority is used for events
 259  * from the X server.
 260  */
 261 #define G_PRIORITY_DEFAULT          0
 262
 263 /**
 264  * G_PRIORITY_HIGH_IDLE:
 265  *
 266  * Use this for high priority idle functions.
 267  *
 268  * GTK+ uses #G_PRIORITY_HIGH_IDLE + 10 for resizing operations,
 269  * and #G_PRIORITY_HIGH_IDLE + 20 for redrawing operations. (This is
 270  * done to ensure that any pending resizes are processed before any
 271  * pending redraws, so that widgets are not redrawn twice unnecessarily.)
 272  */
 273 #define G_PRIORITY_HIGH_IDLE        100
 274
 275 /**
 276  * G_PRIORITY_DEFAULT_IDLE:
 277  *
 278  * Use this for default priority idle functions.
 279  *
 280  * In GLib this priority is used when adding idle functions with
 281  * g_idle_add().
 282  */
 283 #define G_PRIORITY_DEFAULT_IDLE     200
 284
 285 /**
 286  * G_PRIORITY_LOW:
 287  *
 288  * Use this for very low priority background tasks.
 289  *
 290  * It is not used within GLib or GTK+.
 291  */
 292 #define G_PRIORITY_LOW              300
 293
 294 /**
 295  * G_SOURCE_REMOVE:
 296  *
 297  * Use this macro as the return value of a #GSourceFunc to remove
 298  * the #GSource from the main loop.
 299  *
 300  * Since: 2.32
 301  */
 302 #define G_SOURCE_REMOVE         FALSE
 303
 304 /**
 305  * G_SOURCE_CONTINUE:
 306  *
 307  * Use this macro as the return value of a #GSourceFunc to leave
 308  * the #GSource in the main loop.
 309  *
 310  * Since: 2.32
 311  */
 312 #define G_SOURCE_CONTINUE       TRUE
 313
 314 /* GMainContext: */
 315
 316 GLIB_AVAILABLE_IN_ALL
 317 GMainContext *g_main_context_new       (void);
 318 GLIB_AVAILABLE_IN_ALL
 319 GMainContext *g_main_context_ref       (GMainContext *context);
 320 GLIB_AVAILABLE_IN_ALL
 321 void          g_main_context_unref     (GMainContext *context);
 322 GLIB_AVAILABLE_IN_ALL
 323 GMainContext *g_main_context_default   (void);
 324
 325 GLIB_AVAILABLE_IN_ALL
 326 gboolean      g_main_context_iteration (GMainContext *context,
 327                                         gboolean      may_block);
 328 GLIB_AVAILABLE_IN_ALL
 329 gboolean      g_main_context_pending   (GMainContext *context);
 330
 331 /* For implementation of legacy interfaces
 332  */
 333 GLIB_AVAILABLE_IN_ALL
 334 GSource      *g_main_context_find_source_by_id              (GMainContext *context,
 335                                                              guint         source_id);
 336 GLIB_AVAILABLE_IN_ALL
 337 GSource      *g_main_context_find_source_by_user_data       (GMainContext *context,
 338                                                              gpointer      user_data);
 339 GLIB_AVAILABLE_IN_ALL
 340 GSource      *g_main_context_find_source_by_funcs_user_data (GMainContext *context,
 341                                                              GSourceFuncs *funcs,
 342                                                              gpointer      user_data);
 343
 344 /* Low level functions for implementing custom main loops.
 345  */
 346 GLIB_AVAILABLE_IN_ALL
 347 void     g_main_context_wakeup  (GMainContext *context);
 348 GLIB_AVAILABLE_IN_ALL
 349 gboolean g_main_context_acquire (GMainContext *context);
 350 GLIB_AVAILABLE_IN_ALL
 351 void     g_main_context_release (GMainContext *context);
 352 GLIB_AVAILABLE_IN_ALL
 353 gboolean g_main_context_is_owner (GMainContext *context);
 354 GLIB_AVAILABLE_IN_ALL
 355 gboolean g_main_context_wait    (GMainContext *context,
 356                                  GCond        *cond,
 357                                  GMutex       *mutex);
 358
 359 GLIB_AVAILABLE_IN_ALL
 360 gboolean g_main_context_prepare  (GMainContext *context,
 361                                   gint         *priority);
 362 GLIB_AVAILABLE_IN_ALL
 363 gint     g_main_context_query    (GMainContext *context,
 364                                   gint          max_priority,
 365                                   gint         *timeout_,
 366                                   GPollFD      *fds,
 367                                   gint          n_fds);
 368 GLIB_AVAILABLE_IN_ALL
 369 gboolean     g_main_context_check    (GMainContext *context,
 370                                       gint          max_priority,
 371                                       GPollFD      *fds,
 372                                       gint          n_fds);
 373 GLIB_AVAILABLE_IN_ALL
 374 void     g_main_context_dispatch (GMainContext *context);
 375
 376 GLIB_AVAILABLE_IN_ALL
 377 void     g_main_context_set_poll_func (GMainContext *context,
 378                                        GPollFunc     func);
 379 GLIB_AVAILABLE_IN_ALL
 380 GPollFunc g_main_context_get_poll_func (GMainContext *context);
 381
 382 /* Low level functions for use by source implementations
 383  */
 384 GLIB_AVAILABLE_IN_ALL
 385 void     g_main_context_add_poll    (GMainContext *context,
 386                                      GPollFD      *fd,
 387                                      gint          priority);
 388 GLIB_AVAILABLE_IN_ALL
 389 void     g_main_context_remove_poll (GMainContext *context,
 390                                      GPollFD      *fd);
 391
 392 GLIB_AVAILABLE_IN_ALL
 393 gint     g_main_depth               (void);
 394 GLIB_AVAILABLE_IN_ALL
 395 GSource *g_main_current_source      (void);
 396
 397 /* GMainContexts for other threads
 398  */
 399 GLIB_AVAILABLE_IN_ALL
 400 void          g_main_context_push_thread_default (GMainContext *context);
 401 GLIB_AVAILABLE_IN_ALL
 402 void          g_main_context_pop_thread_default  (GMainContext *context);
 403 GLIB_AVAILABLE_IN_ALL
 404 GMainContext *g_main_context_get_thread_default  (void);
 405 GLIB_AVAILABLE_IN_ALL
 406 GMainContext *g_main_context_ref_thread_default  (void);
 407
 408 /* GMainLoop: */
 409
 410 GLIB_AVAILABLE_IN_ALL
 411 GMainLoop *g_main_loop_new        (GMainContext *context,
 412                                    gboolean      is_running);
 413 GLIB_AVAILABLE_IN_ALL
 414 void       g_main_loop_run        (GMainLoop    *loop);
 415 GLIB_AVAILABLE_IN_ALL
 416 void       g_main_loop_quit       (GMainLoop    *loop);
 417 GLIB_AVAILABLE_IN_ALL
 418 GMainLoop *g_main_loop_ref        (GMainLoop    *loop);
 419 GLIB_AVAILABLE_IN_ALL
 420 void       g_main_loop_unref      (GMainLoop    *loop);
 421 GLIB_AVAILABLE_IN_ALL
 422 gboolean   g_main_loop_is_running (GMainLoop    *loop);
 423 GLIB_AVAILABLE_IN_ALL
 424 GMainContext *g_main_loop_get_context (GMainLoop    *loop);
 425
 426 /* GSource: */
 427
 428 GLIB_AVAILABLE_IN_ALL
 429 GSource *g_source_new             (GSourceFuncs   *source_funcs,
 430                                    guint           struct_size);
 431 GLIB_AVAILABLE_IN_ALL
 432 GSource *g_source_ref             (GSource        *source);
 433 GLIB_AVAILABLE_IN_ALL
 434 void     g_source_unref           (GSource        *source);
 435
 436 GLIB_AVAILABLE_IN_ALL
 437 guint    g_source_attach          (GSource        *source,
 438                                    GMainContext   *context);
 439 GLIB_AVAILABLE_IN_ALL
 440 void     g_source_destroy         (GSource        *source);
 441
 442 GLIB_AVAILABLE_IN_ALL
 443 void     g_source_set_priority    (GSource        *source,
 444                                    gint            priority);
 445 GLIB_AVAILABLE_IN_ALL
 446 gint     g_source_get_priority    (GSource        *source);
 447 GLIB_AVAILABLE_IN_ALL
 448 void     g_source_set_can_recurse (GSource        *source,
 449                                    gboolean        can_recurse);
 450 GLIB_AVAILABLE_IN_ALL
 451 gboolean g_source_get_can_recurse (GSource        *source);
 452 GLIB_AVAILABLE_IN_ALL
 453 guint    g_source_get_id          (GSource        *source);
 454
 455 GLIB_AVAILABLE_IN_ALL
 456 GMainContext *g_source_get_context (GSource       *source);
 457
 458 GLIB_AVAILABLE_IN_ALL
 459 void     g_source_set_callback    (GSource        *source,
 460                                    GSourceFunc     func,
 461                                    gpointer        data,
 462                                    GDestroyNotify  notify);
 463
 464 GLIB_AVAILABLE_IN_ALL
 465 void     g_source_set_funcs       (GSource        *source,
 466                                    GSourceFuncs   *funcs);
 467 GLIB_AVAILABLE_IN_ALL
 468 gboolean g_source_is_destroyed    (GSource        *source);
 469
 470 GLIB_AVAILABLE_IN_ALL
 471 void                 g_source_set_name       (GSource        *source,
 472                                               const char     *name);
 473 GLIB_AVAILABLE_IN_ALL
 474 const char *         g_source_get_name       (GSource        *source);
 475 GLIB_AVAILABLE_IN_ALL
 476 void                 g_source_set_name_by_id (guint           tag,
 477                                               const char     *name);
 478
 479 GLIB_AVAILABLE_IN_2_36
 480 void                 g_source_set_ready_time (GSource        *source,
 481                                               gint64          ready_time);
 482 GLIB_AVAILABLE_IN_2_36
 483 gint64               g_source_get_ready_time (GSource        *source);
 484
 485 #ifdef G_OS_UNIX
 486 GLIB_AVAILABLE_IN_2_36
 487 gpointer             g_source_add_unix_fd    (GSource        *source,
 488                                               gint            fd,
 489                                               GIOCondition    events);
 490 GLIB_AVAILABLE_IN_2_36
 491 void                 g_source_modify_unix_fd (GSource        *source,
 492                                               gpointer        tag,
 493                                               GIOCondition    new_events);
 494 GLIB_AVAILABLE_IN_2_36
 495 void                 g_source_remove_unix_fd (GSource        *source,
 496                                               gpointer        tag);
 497 GLIB_AVAILABLE_IN_2_36
 498 GIOCondition         g_source_query_unix_fd  (GSource        *source,
 499                                               gpointer        tag);
 500 #endif
 501
 502 /* Used to implement g_source_connect_closure and internally*/
 503 GLIB_AVAILABLE_IN_ALL
 504 void g_source_set_callback_indirect (GSource              *source,
 505                                      gpointer              callback_data,
 506                                      GSourceCallbackFuncs *callback_funcs);
 507
 508 GLIB_AVAILABLE_IN_ALL
 509 void     g_source_add_poll            (GSource        *source,
 510                                        GPollFD        *fd);
 511 GLIB_AVAILABLE_IN_ALL
 512 void     g_source_remove_poll         (GSource        *source,
 513                                        GPollFD        *fd);
 514
 515 GLIB_AVAILABLE_IN_ALL
 516 void     g_source_add_child_source    (GSource        *source,
 517                                        GSource        *child_source);
 518 GLIB_AVAILABLE_IN_ALL
 519 void     g_source_remove_child_source (GSource        *source,
 520                                        GSource        *child_source);
 521
 522 GLIB_DEPRECATED_IN_2_28_FOR(g_source_get_time)
 523 void     g_source_get_current_time (GSource        *source,
 524                                     GTimeVal       *timeval);
 525
 526 GLIB_AVAILABLE_IN_ALL
 527 gint64   g_source_get_time         (GSource        *source);
 528
 529  /* void g_source_connect_closure (GSource        *source,
 530                                   GClosure       *closure);
 531  */
 532
 533 /* Specific source types
 534  */
 535 GLIB_AVAILABLE_IN_ALL
 536 GSource *g_idle_source_new        (void);
 537 GLIB_AVAILABLE_IN_ALL
 538 GSource *g_child_watch_source_new (GPid pid);
 539 GLIB_AVAILABLE_IN_ALL
 540 GSource *g_timeout_source_new     (guint interval);
 541 GLIB_AVAILABLE_IN_ALL
 542 GSource *g_timeout_source_new_seconds (guint interval);
 543
 544 /* Miscellaneous functions
 545  */
 546 GLIB_AVAILABLE_IN_ALL
 547 void   g_get_current_time                 (GTimeVal       *result);
 548 GLIB_AVAILABLE_IN_ALL
 549 gint64 g_get_monotonic_time               (void);
 550 GLIB_AVAILABLE_IN_ALL
 551 gint64 g_get_real_time                    (void);
 552
 553
 554 /* Source manipulation by ID */
 555 GLIB_AVAILABLE_IN_ALL
 556 gboolean g_source_remove                     (guint          tag);
 557 GLIB_AVAILABLE_IN_ALL
 558 gboolean g_source_remove_by_user_data        (gpointer       user_data);
 559 GLIB_AVAILABLE_IN_ALL
 560 gboolean g_source_remove_by_funcs_user_data  (GSourceFuncs  *funcs,
 561                                               gpointer       user_data);
 562
 563 /* Idles, child watchers and timeouts */
 564 GLIB_AVAILABLE_IN_ALL
 565 guint    g_timeout_add_full         (gint            priority,
 566                                      guint           interval,
 567                                      GSourceFunc     function,
 568                                      gpointer        data,
 569                                      GDestroyNotify  notify);
 570 GLIB_AVAILABLE_IN_ALL
 571 guint    g_timeout_add              (guint           interval,
 572                                      GSourceFunc     function,
 573                                      gpointer        data);
 574 GLIB_AVAILABLE_IN_ALL
 575 guint    g_timeout_add_seconds_full (gint            priority,
 576                                      guint           interval,
 577                                      GSourceFunc     function,
 578                                      gpointer        data,
 579                                      GDestroyNotify  notify);
 580 GLIB_AVAILABLE_IN_ALL
 581 guint    g_timeout_add_seconds      (guint           interval,
 582                                      GSourceFunc     function,
 583                                      gpointer        data);
 584 GLIB_AVAILABLE_IN_ALL
 585 guint    g_child_watch_add_full     (gint            priority,
 586                                      GPid            pid,
 587                                      GChildWatchFunc function,
 588                                      gpointer        data,
 589                                      GDestroyNotify  notify);
 590 GLIB_AVAILABLE_IN_ALL
 591 guint    g_child_watch_add          (GPid            pid,
 592                                      GChildWatchFunc function,
 593                                      gpointer        data);
 594 GLIB_AVAILABLE_IN_ALL
 595 guint    g_idle_add                 (GSourceFunc     function,
 596                                      gpointer        data);
 597 GLIB_AVAILABLE_IN_ALL
 598 guint    g_idle_add_full            (gint            priority,
 599                                      GSourceFunc     function,
 600                                      gpointer        data,
 601                                      GDestroyNotify  notify);
 602 GLIB_AVAILABLE_IN_ALL
 603 gboolean g_idle_remove_by_data      (gpointer        data);
 604
 605 GLIB_AVAILABLE_IN_ALL
 606 void     g_main_context_invoke_full (GMainContext   *context,
 607                                      gint            priority,
 608                                      GSourceFunc     function,
 609                                      gpointer        data,
 610                                      GDestroyNotify  notify);
 611 GLIB_AVAILABLE_IN_ALL
 612 void     g_main_context_invoke      (GMainContext   *context,
 613                                      GSourceFunc     function,
 614                                      gpointer        data);
 615
 616 /* Hook for GClosure / GSource integration. Don't touch */
 617 GLIB_VAR GSourceFuncs g_timeout_funcs;
 618 GLIB_VAR GSourceFuncs g_child_watch_funcs;
 619 GLIB_VAR GSourceFuncs g_idle_funcs;
 620 #ifdef G_OS_UNIX
 621 GLIB_VAR GSourceFuncs g_unix_signal_funcs;
 622 GLIB_VAR GSourceFuncs g_unix_fd_source_funcs;
 623 #endif
 624
 625 G_END_DECLS
 626
 627 #endif /* __G_MAIN_H__ */