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#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