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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "MessagePump.h"
using namespace mozilla::ipc;
NS_IMPL_ADDREF_INHERITED(MessagePumpForNonMainUIThreads, MessagePump)
NS_IMPL_RELEASE_INHERITED(MessagePumpForNonMainUIThreads, MessagePump)
NS_IMPL_QUERY_INTERFACE(MessagePumpForNonMainUIThreads, nsIThreadObserver)
#define CHECK_QUIT_STATE \
{ \
if (state_->should_quit) { \
break; \
} \
}
void MessagePumpForNonMainUIThreads::DoRunLoop() {
MOZ_RELEASE_ASSERT(!NS_IsMainThread(),
"Use mozilla::ipc::MessagePump instead!");
// If this is a chromium thread and no nsThread is associated
// with it, this call will create a new nsThread.
nsIThread* thread = NS_GetCurrentThread();
MOZ_ASSERT(thread);
// Set the main thread observer so we can wake up when
// xpcom events need to get processed.
nsCOMPtr<nsIThreadInternal> ti(do_QueryInterface(thread));
MOZ_ASSERT(ti);
ti->SetObserver(this);
for (;;) {
bool didWork = NS_ProcessNextEvent(thread, false);
didWork |= ProcessNextWindowsMessage();
CHECK_QUIT_STATE
didWork |= state_->delegate->DoWork();
CHECK_QUIT_STATE
didWork |= state_->delegate->DoDelayedWork(&delayed_work_time_);
if (didWork && delayed_work_time_.is_null()) {
KillTimer(message_hwnd_, reinterpret_cast<UINT_PTR>(this));
}
CHECK_QUIT_STATE
if (didWork) {
continue;
}
DebugOnly<bool> didIdleWork = state_->delegate->DoIdleWork();
MOZ_ASSERT(!didIdleWork);
CHECK_QUIT_STATE
SetInWait();
bool hasWork = NS_HasPendingEvents(thread);
if (didWork || hasWork) {
ClearInWait();
continue;
}
WaitForWork(); // Calls MsgWaitForMultipleObjectsEx(QS_ALLINPUT)
ClearInWait();
}
ClearInWait();
ti->SetObserver(nullptr);
}
NS_IMETHODIMP
MessagePumpForNonMainUIThreads::OnDispatchedEvent() {
// If our thread is sleeping in DoRunLoop's call to WaitForWork() and an
// event posts to the nsIThread event queue - break our thread out of
// chromium's WaitForWork.
if (GetInWait()) {
ScheduleWork();
}
return NS_OK;
}
NS_IMETHODIMP
MessagePumpForNonMainUIThreads::OnProcessNextEvent(nsIThreadInternal* thread,
bool mayWait) {
return NS_OK;
}
NS_IMETHODIMP
MessagePumpForNonMainUIThreads::AfterProcessNextEvent(nsIThreadInternal* thread,
bool eventWasProcessed) {
return NS_OK;
}