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-rw-r--r--base/message_loop.cc24
1 files changed, 13 insertions, 11 deletions
diff --git a/base/message_loop.cc b/base/message_loop.cc
index 7d2fbff..aa71d8d 100644
--- a/base/message_loop.cc
+++ b/base/message_loop.cc
@@ -128,7 +128,7 @@ MessageLoop::MessageLoop() : message_hwnd_(NULL),
exception_restoration_(false),
nestable_tasks_allowed_(true),
dispatcher_(NULL),
- quit_received_(false),
+ quit_received_(0),
quit_now_(false),
task_pump_message_pending_(false),
run_depth_(0) {
@@ -226,6 +226,16 @@ void MessageLoop::RunInternal(Dispatcher* dispatcher, bool non_blocking) {
// and leave messages pending, so don't assert the above fact).
RunTraditional(non_blocking);
DCHECK(non_blocking || quit_received_ || quit_now_);
+ // Repost excess kMsgQuit's that were received before we exit.
+ int excess_quits = quit_received_ - 1; // One is expected.
+ if (non_blocking || quit_now_)
+ ++excess_quits; // Any quit is an excess quit.
+ if (excess_quits > run_depth_ - 1) {
+ // DCHECK(false); // Someone sent redundant quits.
+ excess_quits = run_depth_ - 1;
+ }
+ while (--excess_quits >= 0)
+ Quit();
}
void MessageLoop::RunTraditional(bool non_blocking) {
@@ -245,6 +255,7 @@ void MessageLoop::RunTraditional(bool non_blocking) {
more_work_is_plausible |= ProcessNextDeferredTask();
more_work_is_plausible |= ProcessNextObject();
+ more_work_is_plausible |= ProcessNextDelayedNonNestableTask();
if (more_work_is_plausible)
continue;
@@ -255,11 +266,6 @@ void MessageLoop::RunTraditional(bool non_blocking) {
if (ProcessSomeTimers())
continue;
- // We run delayed non nestable tasks only after all nestable tasks have
- // run, to preserve FIFO ordering.
- if (ProcessNextDelayedNonNestableTask())
- continue;
-
if (non_blocking)
return;
@@ -398,11 +404,7 @@ LRESULT MessageLoop::MessageWndProc(HWND hwnd, UINT message,
}
case kMsgQuit: {
- // TODO(jar): bug 1300541 The following assert should be used, but
- // currently too much code actually triggers the assert, especially in
- // tests :-(.
- //CHECK(!quit_received_); // Discarding a second quit will cause a hang.
- quit_received_ = true;
+ ++quit_received_;
return 0;
}
}