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00024 #include "dbus-mainloop.h"
00025
00026 #ifndef DOXYGEN_SHOULD_SKIP_THIS
00027
00028 #include <dbus/dbus-list.h>
00029 #include <dbus/dbus-sysdeps.h>
00030
00031 #define MAINLOOP_SPEW 0
00032
00033 struct DBusLoop
00034 {
00035 int refcount;
00036 DBusList *callbacks;
00037 int callback_list_serial;
00038 int watch_count;
00039 int timeout_count;
00040 int depth;
00041 DBusList *need_dispatch;
00042 };
00043
00044 typedef enum
00045 {
00046 CALLBACK_WATCH,
00047 CALLBACK_TIMEOUT
00048 } CallbackType;
00049
00050 typedef struct
00051 {
00052 int refcount;
00053 CallbackType type;
00054 void *data;
00055 DBusFreeFunction free_data_func;
00056 } Callback;
00057
00058 typedef struct
00059 {
00060 Callback callback;
00061 DBusWatchFunction function;
00062 DBusWatch *watch;
00063
00064 unsigned int last_iteration_oom : 1;
00065 } WatchCallback;
00066
00067 typedef struct
00068 {
00069 Callback callback;
00070 DBusTimeout *timeout;
00071 DBusTimeoutFunction function;
00072 unsigned long last_tv_sec;
00073 unsigned long last_tv_usec;
00074 } TimeoutCallback;
00075
00076 #define WATCH_CALLBACK(callback) ((WatchCallback*)callback)
00077 #define TIMEOUT_CALLBACK(callback) ((TimeoutCallback*)callback)
00078
00079 static WatchCallback*
00080 watch_callback_new (DBusWatch *watch,
00081 DBusWatchFunction function,
00082 void *data,
00083 DBusFreeFunction free_data_func)
00084 {
00085 WatchCallback *cb;
00086
00087 cb = dbus_new (WatchCallback, 1);
00088 if (cb == NULL)
00089 return NULL;
00090
00091 cb->watch = watch;
00092 cb->function = function;
00093 cb->last_iteration_oom = FALSE;
00094 cb->callback.refcount = 1;
00095 cb->callback.type = CALLBACK_WATCH;
00096 cb->callback.data = data;
00097 cb->callback.free_data_func = free_data_func;
00098
00099 return cb;
00100 }
00101
00102 static TimeoutCallback*
00103 timeout_callback_new (DBusTimeout *timeout,
00104 DBusTimeoutFunction function,
00105 void *data,
00106 DBusFreeFunction free_data_func)
00107 {
00108 TimeoutCallback *cb;
00109
00110 cb = dbus_new (TimeoutCallback, 1);
00111 if (cb == NULL)
00112 return NULL;
00113
00114 cb->timeout = timeout;
00115 cb->function = function;
00116 _dbus_get_current_time (&cb->last_tv_sec,
00117 &cb->last_tv_usec);
00118 cb->callback.refcount = 1;
00119 cb->callback.type = CALLBACK_TIMEOUT;
00120 cb->callback.data = data;
00121 cb->callback.free_data_func = free_data_func;
00122
00123 return cb;
00124 }
00125
00126 static Callback *
00127 callback_ref (Callback *cb)
00128 {
00129 _dbus_assert (cb->refcount > 0);
00130
00131 cb->refcount += 1;
00132
00133 return cb;
00134 }
00135
00136 static void
00137 callback_unref (Callback *cb)
00138 {
00139 _dbus_assert (cb->refcount > 0);
00140
00141 cb->refcount -= 1;
00142
00143 if (cb->refcount == 0)
00144 {
00145 if (cb->free_data_func)
00146 (* cb->free_data_func) (cb->data);
00147
00148 dbus_free (cb);
00149 }
00150 }
00151
00152 static dbus_bool_t
00153 add_callback (DBusLoop *loop,
00154 Callback *cb)
00155 {
00156 if (!_dbus_list_append (&loop->callbacks, cb))
00157 return FALSE;
00158
00159 loop->callback_list_serial += 1;
00160
00161 switch (cb->type)
00162 {
00163 case CALLBACK_WATCH:
00164 loop->watch_count += 1;
00165 break;
00166 case CALLBACK_TIMEOUT:
00167 loop->timeout_count += 1;
00168 break;
00169 }
00170
00171 return TRUE;
00172 }
00173
00174 static void
00175 remove_callback (DBusLoop *loop,
00176 DBusList *link)
00177 {
00178 Callback *cb = link->data;
00179
00180 switch (cb->type)
00181 {
00182 case CALLBACK_WATCH:
00183 loop->watch_count -= 1;
00184 break;
00185 case CALLBACK_TIMEOUT:
00186 loop->timeout_count -= 1;
00187 break;
00188 }
00189
00190 callback_unref (cb);
00191 _dbus_list_remove_link (&loop->callbacks, link);
00192 loop->callback_list_serial += 1;
00193 }
00194
00195 DBusLoop*
00196 _dbus_loop_new (void)
00197 {
00198 DBusLoop *loop;
00199
00200 loop = dbus_new0 (DBusLoop, 1);
00201 if (loop == NULL)
00202 return NULL;
00203
00204 loop->refcount = 1;
00205
00206 return loop;
00207 }
00208
00209 DBusLoop *
00210 _dbus_loop_ref (DBusLoop *loop)
00211 {
00212 _dbus_assert (loop != NULL);
00213 _dbus_assert (loop->refcount > 0);
00214
00215 loop->refcount += 1;
00216
00217 return loop;
00218 }
00219
00220 void
00221 _dbus_loop_unref (DBusLoop *loop)
00222 {
00223 _dbus_assert (loop != NULL);
00224 _dbus_assert (loop->refcount > 0);
00225
00226 loop->refcount -= 1;
00227 if (loop->refcount == 0)
00228 {
00229 while (loop->need_dispatch)
00230 {
00231 DBusConnection *connection = _dbus_list_pop_first (&loop->need_dispatch);
00232
00233 dbus_connection_unref (connection);
00234 }
00235
00236 dbus_free (loop);
00237 }
00238 }
00239
00240 dbus_bool_t
00241 _dbus_loop_add_watch (DBusLoop *loop,
00242 DBusWatch *watch,
00243 DBusWatchFunction function,
00244 void *data,
00245 DBusFreeFunction free_data_func)
00246 {
00247 WatchCallback *wcb;
00248
00249 wcb = watch_callback_new (watch, function, data, free_data_func);
00250 if (wcb == NULL)
00251 return FALSE;
00252
00253 if (!add_callback (loop, (Callback*) wcb))
00254 {
00255 wcb->callback.free_data_func = NULL;
00256 callback_unref ((Callback*) wcb);
00257 return FALSE;
00258 }
00259
00260 return TRUE;
00261 }
00262
00263 void
00264 _dbus_loop_remove_watch (DBusLoop *loop,
00265 DBusWatch *watch,
00266 DBusWatchFunction function,
00267 void *data)
00268 {
00269 DBusList *link;
00270
00271 link = _dbus_list_get_first_link (&loop->callbacks);
00272 while (link != NULL)
00273 {
00274 DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
00275 Callback *this = link->data;
00276
00277 if (this->type == CALLBACK_WATCH &&
00278 WATCH_CALLBACK (this)->watch == watch &&
00279 this->data == data &&
00280 WATCH_CALLBACK (this)->function == function)
00281 {
00282 remove_callback (loop, link);
00283
00284 return;
00285 }
00286
00287 link = next;
00288 }
00289
00290 _dbus_warn ("could not find watch %p function %p data %p to remove\n",
00291 watch, (void *)function, data);
00292 }
00293
00294 dbus_bool_t
00295 _dbus_loop_add_timeout (DBusLoop *loop,
00296 DBusTimeout *timeout,
00297 DBusTimeoutFunction function,
00298 void *data,
00299 DBusFreeFunction free_data_func)
00300 {
00301 TimeoutCallback *tcb;
00302
00303 tcb = timeout_callback_new (timeout, function, data, free_data_func);
00304 if (tcb == NULL)
00305 return FALSE;
00306
00307 if (!add_callback (loop, (Callback*) tcb))
00308 {
00309 tcb->callback.free_data_func = NULL;
00310 callback_unref ((Callback*) tcb);
00311 return FALSE;
00312 }
00313
00314 return TRUE;
00315 }
00316
00317 void
00318 _dbus_loop_remove_timeout (DBusLoop *loop,
00319 DBusTimeout *timeout,
00320 DBusTimeoutFunction function,
00321 void *data)
00322 {
00323 DBusList *link;
00324
00325 link = _dbus_list_get_first_link (&loop->callbacks);
00326 while (link != NULL)
00327 {
00328 DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
00329 Callback *this = link->data;
00330
00331 if (this->type == CALLBACK_TIMEOUT &&
00332 TIMEOUT_CALLBACK (this)->timeout == timeout &&
00333 this->data == data &&
00334 TIMEOUT_CALLBACK (this)->function == function)
00335 {
00336 remove_callback (loop, link);
00337
00338 return;
00339 }
00340
00341 link = next;
00342 }
00343
00344 _dbus_warn ("could not find timeout %p function %p data %p to remove\n",
00345 timeout, (void *)function, data);
00346 }
00347
00348
00349
00350
00351 static dbus_bool_t
00352 check_timeout (unsigned long tv_sec,
00353 unsigned long tv_usec,
00354 TimeoutCallback *tcb,
00355 int *timeout)
00356 {
00357 long sec_remaining;
00358 long msec_remaining;
00359 unsigned long expiration_tv_sec;
00360 unsigned long expiration_tv_usec;
00361 long interval_seconds;
00362 long interval_milliseconds;
00363 int interval;
00364
00365
00366
00367 interval = dbus_timeout_get_interval (tcb->timeout);
00368
00369 interval_seconds = interval / 1000L;
00370 interval_milliseconds = interval % 1000L;
00371
00372 expiration_tv_sec = tcb->last_tv_sec + interval_seconds;
00373 expiration_tv_usec = tcb->last_tv_usec + interval_milliseconds * 1000;
00374 if (expiration_tv_usec >= 1000000)
00375 {
00376 expiration_tv_usec -= 1000000;
00377 expiration_tv_sec += 1;
00378 }
00379
00380 sec_remaining = expiration_tv_sec - tv_sec;
00381
00382
00383
00384 msec_remaining = ((long) expiration_tv_usec - (long) tv_usec) / 1000L;
00385
00386 #if MAINLOOP_SPEW
00387 _dbus_verbose ("Interval is %ld seconds %ld msecs\n",
00388 interval_seconds,
00389 interval_milliseconds);
00390 _dbus_verbose ("Now is %lu seconds %lu usecs\n",
00391 tv_sec, tv_usec);
00392 _dbus_verbose ("Last is %lu seconds %lu usecs\n",
00393 tcb->last_tv_sec, tcb->last_tv_usec);
00394 _dbus_verbose ("Exp is %lu seconds %lu usecs\n",
00395 expiration_tv_sec, expiration_tv_usec);
00396 _dbus_verbose ("Pre-correction, sec_remaining %ld msec_remaining %ld\n",
00397 sec_remaining, msec_remaining);
00398 #endif
00399
00400
00401
00402
00403
00404 if (sec_remaining < 0 || (sec_remaining == 0 && msec_remaining < 0))
00405 {
00406 *timeout = 0;
00407 }
00408 else
00409 {
00410 if (msec_remaining < 0)
00411 {
00412 msec_remaining += 1000;
00413 sec_remaining -= 1;
00414 }
00415
00416 if (sec_remaining > (_DBUS_INT_MAX / 1000) ||
00417 msec_remaining > _DBUS_INT_MAX)
00418 *timeout = _DBUS_INT_MAX;
00419 else
00420 *timeout = sec_remaining * 1000 + msec_remaining;
00421 }
00422
00423 if (*timeout > interval)
00424 {
00425
00426 _dbus_verbose ("System clock set backward! Resetting timeout.\n");
00427
00428 tcb->last_tv_sec = tv_sec;
00429 tcb->last_tv_usec = tv_usec;
00430
00431 *timeout = interval;
00432 }
00433
00434 #if MAINLOOP_SPEW
00435 _dbus_verbose (" timeout expires in %d milliseconds\n", *timeout);
00436 #endif
00437
00438 return *timeout == 0;
00439 }
00440
00441 dbus_bool_t
00442 _dbus_loop_dispatch (DBusLoop *loop)
00443 {
00444
00445 #if MAINLOOP_SPEW
00446 _dbus_verbose (" %d connections to dispatch\n", _dbus_list_get_length (&loop->need_dispatch));
00447 #endif
00448
00449 if (loop->need_dispatch == NULL)
00450 return FALSE;
00451
00452 next:
00453 while (loop->need_dispatch != NULL)
00454 {
00455 DBusConnection *connection = _dbus_list_pop_first (&loop->need_dispatch);
00456
00457 while (TRUE)
00458 {
00459 DBusDispatchStatus status;
00460
00461 status = dbus_connection_dispatch (connection);
00462
00463 if (status == DBUS_DISPATCH_COMPLETE)
00464 {
00465 dbus_connection_unref (connection);
00466 goto next;
00467 }
00468 else
00469 {
00470 if (status == DBUS_DISPATCH_NEED_MEMORY)
00471 _dbus_wait_for_memory ();
00472 }
00473 }
00474 }
00475
00476 return TRUE;
00477 }
00478
00479 dbus_bool_t
00480 _dbus_loop_queue_dispatch (DBusLoop *loop,
00481 DBusConnection *connection)
00482 {
00483 if (_dbus_list_append (&loop->need_dispatch, connection))
00484 {
00485 dbus_connection_ref (connection);
00486 return TRUE;
00487 }
00488 else
00489 return FALSE;
00490 }
00491
00492
00493
00494
00495
00496 dbus_bool_t
00497 _dbus_loop_iterate (DBusLoop *loop,
00498 dbus_bool_t block)
00499 {
00500 #define N_STACK_DESCRIPTORS 64
00501 dbus_bool_t retval;
00502 DBusPollFD *fds;
00503 DBusPollFD stack_fds[N_STACK_DESCRIPTORS];
00504 int n_fds;
00505 WatchCallback **watches_for_fds;
00506 WatchCallback *stack_watches_for_fds[N_STACK_DESCRIPTORS];
00507 int i;
00508 DBusList *link;
00509 int n_ready;
00510 int initial_serial;
00511 long timeout;
00512 dbus_bool_t oom_watch_pending;
00513 int orig_depth;
00514
00515 retval = FALSE;
00516
00517 fds = NULL;
00518 watches_for_fds = NULL;
00519 n_fds = 0;
00520 oom_watch_pending = FALSE;
00521 orig_depth = loop->depth;
00522
00523 #if MAINLOOP_SPEW
00524 _dbus_verbose ("Iteration block=%d depth=%d timeout_count=%d watch_count=%d\n",
00525 block, loop->depth, loop->timeout_count, loop->watch_count);
00526 #endif
00527
00528 if (loop->callbacks == NULL)
00529 goto next_iteration;
00530
00531 if (loop->watch_count > N_STACK_DESCRIPTORS)
00532 {
00533 fds = dbus_new0 (DBusPollFD, loop->watch_count);
00534
00535 while (fds == NULL)
00536 {
00537 _dbus_wait_for_memory ();
00538 fds = dbus_new0 (DBusPollFD, loop->watch_count);
00539 }
00540
00541 watches_for_fds = dbus_new (WatchCallback*, loop->watch_count);
00542 while (watches_for_fds == NULL)
00543 {
00544 _dbus_wait_for_memory ();
00545 watches_for_fds = dbus_new (WatchCallback*, loop->watch_count);
00546 }
00547 }
00548 else
00549 {
00550 fds = stack_fds;
00551 watches_for_fds = stack_watches_for_fds;
00552 }
00553
00554
00555 n_fds = 0;
00556 link = _dbus_list_get_first_link (&loop->callbacks);
00557 while (link != NULL)
00558 {
00559 DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
00560 Callback *cb = link->data;
00561 if (cb->type == CALLBACK_WATCH)
00562 {
00563 unsigned int flags;
00564 WatchCallback *wcb = WATCH_CALLBACK (cb);
00565
00566 if (wcb->last_iteration_oom)
00567 {
00568
00569
00570
00571 wcb->last_iteration_oom = FALSE;
00572 oom_watch_pending = TRUE;
00573
00574 retval = TRUE;
00575
00576
00577
00578 #if MAINLOOP_SPEW
00579 _dbus_verbose (" skipping watch on fd %d as it was out of memory last time\n",
00580 dbus_watch_get_fd (wcb->watch));
00581 #endif
00582 }
00583 else if (dbus_watch_get_enabled (wcb->watch))
00584 {
00585 watches_for_fds[n_fds] = wcb;
00586
00587 callback_ref (cb);
00588
00589 flags = dbus_watch_get_flags (wcb->watch);
00590
00591 fds[n_fds].fd = dbus_watch_get_fd (wcb->watch);
00592 fds[n_fds].revents = 0;
00593 fds[n_fds].events = 0;
00594 if (flags & DBUS_WATCH_READABLE)
00595 fds[n_fds].events |= _DBUS_POLLIN;
00596 if (flags & DBUS_WATCH_WRITABLE)
00597 fds[n_fds].events |= _DBUS_POLLOUT;
00598
00599 #if MAINLOOP_SPEW
00600 _dbus_verbose (" polling watch on fd %d\n", fds[n_fds].fd);
00601 #endif
00602
00603 n_fds += 1;
00604 }
00605 else
00606 {
00607 #if MAINLOOP_SPEW
00608 _dbus_verbose (" skipping disabled watch on fd %d\n",
00609 dbus_watch_get_fd (wcb->watch));
00610 #endif
00611 }
00612 }
00613
00614 link = next;
00615 }
00616
00617 timeout = -1;
00618 if (loop->timeout_count > 0)
00619 {
00620 unsigned long tv_sec;
00621 unsigned long tv_usec;
00622
00623 _dbus_get_current_time (&tv_sec, &tv_usec);
00624
00625 link = _dbus_list_get_first_link (&loop->callbacks);
00626 while (link != NULL)
00627 {
00628 DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
00629 Callback *cb = link->data;
00630
00631 if (cb->type == CALLBACK_TIMEOUT &&
00632 dbus_timeout_get_enabled (TIMEOUT_CALLBACK (cb)->timeout))
00633 {
00634 TimeoutCallback *tcb = TIMEOUT_CALLBACK (cb);
00635 int msecs_remaining;
00636
00637 check_timeout (tv_sec, tv_usec, tcb, &msecs_remaining);
00638
00639 if (timeout < 0)
00640 timeout = msecs_remaining;
00641 else
00642 timeout = MIN (msecs_remaining, timeout);
00643
00644 #if MAINLOOP_SPEW
00645 _dbus_verbose (" timeout added, %d remaining, aggregate timeout %ld\n",
00646 msecs_remaining, timeout);
00647 #endif
00648
00649 _dbus_assert (timeout >= 0);
00650
00651 if (timeout == 0)
00652 break;
00653 }
00654 #if MAINLOOP_SPEW
00655 else if (cb->type == CALLBACK_TIMEOUT)
00656 {
00657 _dbus_verbose (" skipping disabled timeout\n");
00658 }
00659 #endif
00660
00661 link = next;
00662 }
00663 }
00664
00665
00666 if (!block || loop->need_dispatch != NULL)
00667 {
00668 timeout = 0;
00669 #if MAINLOOP_SPEW
00670 _dbus_verbose (" timeout is 0 as we aren't blocking\n");
00671 #endif
00672 }
00673
00674
00675
00676
00677 if (oom_watch_pending)
00678 timeout = MIN (timeout, _dbus_get_oom_wait ());
00679
00680 #if MAINLOOP_SPEW
00681 _dbus_verbose (" polling on %d descriptors timeout %ld\n", n_fds, timeout);
00682 #endif
00683
00684 n_ready = _dbus_poll (fds, n_fds, timeout);
00685
00686 initial_serial = loop->callback_list_serial;
00687
00688 if (loop->timeout_count > 0)
00689 {
00690 unsigned long tv_sec;
00691 unsigned long tv_usec;
00692
00693 _dbus_get_current_time (&tv_sec, &tv_usec);
00694
00695
00696 link = _dbus_list_get_first_link (&loop->callbacks);
00697 while (link != NULL)
00698 {
00699 DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
00700 Callback *cb = link->data;
00701
00702 if (initial_serial != loop->callback_list_serial)
00703 goto next_iteration;
00704
00705 if (loop->depth != orig_depth)
00706 goto next_iteration;
00707
00708 if (cb->type == CALLBACK_TIMEOUT &&
00709 dbus_timeout_get_enabled (TIMEOUT_CALLBACK (cb)->timeout))
00710 {
00711 TimeoutCallback *tcb = TIMEOUT_CALLBACK (cb);
00712 int msecs_remaining;
00713
00714 if (check_timeout (tv_sec, tv_usec,
00715 tcb, &msecs_remaining))
00716 {
00717
00718 tcb->last_tv_sec = tv_sec;
00719 tcb->last_tv_usec = tv_usec;
00720
00721 #if MAINLOOP_SPEW
00722 _dbus_verbose (" invoking timeout\n");
00723 #endif
00724
00725 (* tcb->function) (tcb->timeout,
00726 cb->data);
00727
00728 retval = TRUE;
00729 }
00730 else
00731 {
00732 #if MAINLOOP_SPEW
00733 _dbus_verbose (" timeout has not expired\n");
00734 #endif
00735 }
00736 }
00737 #if MAINLOOP_SPEW
00738 else if (cb->type == CALLBACK_TIMEOUT)
00739 {
00740 _dbus_verbose (" skipping invocation of disabled timeout\n");
00741 }
00742 #endif
00743
00744 link = next;
00745 }
00746 }
00747
00748 if (n_ready > 0)
00749 {
00750 i = 0;
00751 while (i < n_fds)
00752 {
00753
00754
00755
00756
00757 if (initial_serial != loop->callback_list_serial)
00758 goto next_iteration;
00759
00760 if (loop->depth != orig_depth)
00761 goto next_iteration;
00762
00763 if (fds[i].revents != 0)
00764 {
00765 WatchCallback *wcb;
00766 unsigned int condition;
00767
00768 wcb = watches_for_fds[i];
00769
00770 condition = 0;
00771 if (fds[i].revents & _DBUS_POLLIN)
00772 condition |= DBUS_WATCH_READABLE;
00773 if (fds[i].revents & _DBUS_POLLOUT)
00774 condition |= DBUS_WATCH_WRITABLE;
00775 if (fds[i].revents & _DBUS_POLLHUP)
00776 condition |= DBUS_WATCH_HANGUP;
00777 if (fds[i].revents & _DBUS_POLLERR)
00778 condition |= DBUS_WATCH_ERROR;
00779
00780
00781
00782
00783
00784 if (condition != 0 &&
00785 dbus_watch_get_enabled (wcb->watch))
00786 {
00787 if (!(* wcb->function) (wcb->watch,
00788 condition,
00789 ((Callback*)wcb)->data))
00790 wcb->last_iteration_oom = TRUE;
00791
00792 #if MAINLOOP_SPEW
00793 _dbus_verbose (" Invoked watch, oom = %d\n",
00794 wcb->last_iteration_oom);
00795 #endif
00796
00797 retval = TRUE;
00798 }
00799 }
00800
00801 ++i;
00802 }
00803 }
00804
00805 next_iteration:
00806 #if MAINLOOP_SPEW
00807 _dbus_verbose (" moving to next iteration\n");
00808 #endif
00809
00810 if (fds && fds != stack_fds)
00811 dbus_free (fds);
00812 if (watches_for_fds)
00813 {
00814 i = 0;
00815 while (i < n_fds)
00816 {
00817 callback_unref (&watches_for_fds[i]->callback);
00818 ++i;
00819 }
00820
00821 if (watches_for_fds != stack_watches_for_fds)
00822 dbus_free (watches_for_fds);
00823 }
00824
00825 if (_dbus_loop_dispatch (loop))
00826 retval = TRUE;
00827
00828 #if MAINLOOP_SPEW
00829 _dbus_verbose ("Returning %d\n", retval);
00830 #endif
00831
00832 return retval;
00833 }
00834
00835 void
00836 _dbus_loop_run (DBusLoop *loop)
00837 {
00838 int our_exit_depth;
00839
00840 _dbus_assert (loop->depth >= 0);
00841
00842 _dbus_loop_ref (loop);
00843
00844 our_exit_depth = loop->depth;
00845 loop->depth += 1;
00846
00847 _dbus_verbose ("Running main loop, depth %d -> %d\n",
00848 loop->depth - 1, loop->depth);
00849
00850 while (loop->depth != our_exit_depth)
00851 _dbus_loop_iterate (loop, TRUE);
00852
00853 _dbus_loop_unref (loop);
00854 }
00855
00856 void
00857 _dbus_loop_quit (DBusLoop *loop)
00858 {
00859 _dbus_assert (loop->depth > 0);
00860
00861 loop->depth -= 1;
00862
00863 _dbus_verbose ("Quit main loop, depth %d -> %d\n",
00864 loop->depth + 1, loop->depth);
00865 }
00866
00867 int
00868 _dbus_get_oom_wait (void)
00869 {
00870 #ifdef DBUS_BUILD_TESTS
00871
00872 return 0;
00873 #else
00874 return 500;
00875 #endif
00876 }
00877
00878 void
00879 _dbus_wait_for_memory (void)
00880 {
00881 _dbus_verbose ("Waiting for more memory\n");
00882 _dbus_sleep_milliseconds (_dbus_get_oom_wait ());
00883 }
00884
00885 #endif