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Unified Diff: base/message_loop/message_pump_win.cc

Issue 2053953002: Add chrome_crash_reporter_client_win.cc to the source file list for chrome_elf (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Address review comments Created 4 years, 6 months ago
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Index: base/message_loop/message_pump_win.cc
diff --git a/base/message_loop/message_pump_win.cc b/base/message_loop/message_pump_win.cc
index 53df341e5fce09a65ed087837db2bacc2aa7b8f6..51c7959bfede883b03564d8bb5e80ab6357ed179 100644
--- a/base/message_loop/message_pump_win.cc
+++ b/base/message_loop/message_pump_win.cc
@@ -28,6 +28,86 @@ enum MessageLoopProblems {
MESSAGE_LOOP_PROBLEM_MAX,
};
+// The following define pointer to user32 API's for the API's which are used
+// in this file. These are added to avoid directly depending on user32 from
+// base as there are users of base who don't want this.
+decltype(::TranslateMessage)* g_translate_message = nullptr;
+decltype(::DispatchMessageW)* g_dispatch_message = nullptr;
+decltype(::PeekMessageW)* g_peek_message = nullptr;
+decltype(::PostMessageW)* g_post_message = nullptr;
+decltype(::DefWindowProcW)* g_def_window_proc = nullptr;
+decltype(::PostQuitMessage)* g_post_quit = nullptr;
+decltype(::UnregisterClassW)* g_unregister_class = nullptr;
+decltype(::RegisterClassExW)* g_register_class = nullptr;
+decltype(::CreateWindowExW)* g_create_window_ex = nullptr;
+decltype(::DestroyWindow)* g_destroy_window = nullptr;
+decltype(::CallMsgFilterW)* g_call_msg_filter = nullptr;
+decltype(::GetQueueStatus)* g_get_queue_status = nullptr;
+decltype(::MsgWaitForMultipleObjectsEx)* g_msg_wait_for_multiple_objects_ex =
+ nullptr;
+decltype(::SetTimer)* g_set_timer = nullptr;
+decltype(::KillTimer)* g_kill_timer = nullptr;
+
+#define GET_USER32_API(name) \
scottmg 2016/06/14 19:50:36 git cl format
+ reinterpret_cast<decltype(name)*>(::GetProcAddress(\
+ ::GetModuleHandle(L"user32.dll"), #name))
grt (UTC plus 2) 2016/06/14 20:07:13 is this going to get the loader lock twice for eac
ananta 2016/06/14 21:27:40 Yeah. Changed to take the module handle.
+
+// Initializes the global pointers to user32 APIs for the API's used in this
+// file.
+void InitUser32APIs() {
+ if (g_translate_message)
+ return;
+
+ HMODULE user32_dll = ::GetModuleHandle(L"user32.dll");
scottmg 2016/06/14 19:50:36 Don't need this any more.
ananta 2016/06/14 19:58:54 Done.
+ CHECK(user32_dll);
+
+ g_translate_message = GET_USER32_API(TranslateMessage);
+ CHECK(g_translate_message);
+
+ g_dispatch_message = GET_USER32_API(DispatchMessageW);
+ CHECK(g_dispatch_message);
+
+ g_peek_message = GET_USER32_API(PeekMessageW);
+ CHECK(g_peek_message);
+
+ g_post_message = GET_USER32_API(PostMessageW);
+ CHECK(g_post_message);
+
+ g_def_window_proc = GET_USER32_API(DefWindowProcW);
+ CHECK(g_def_window_proc);
+
+ g_post_quit = GET_USER32_API(PostQuitMessage);
+ CHECK(g_post_quit);
+
+ g_unregister_class = GET_USER32_API(UnregisterClassW);
+ CHECK(g_unregister_class);
+
+ g_register_class = GET_USER32_API(RegisterClassExW);
+ CHECK(g_register_class);
+
+ g_create_window_ex = GET_USER32_API(CreateWindowExW);
+ CHECK(g_create_window_ex);
+
+ g_destroy_window = GET_USER32_API(DestroyWindow);
+ CHECK(g_destroy_window);
+
+ g_call_msg_filter = GET_USER32_API(CallMsgFilterW);
+ CHECK(g_call_msg_filter);
+
+ g_get_queue_status = GET_USER32_API(GetQueueStatus);
+ CHECK(g_get_queue_status);
+
+ g_msg_wait_for_multiple_objects_ex =
+ GET_USER32_API(MsgWaitForMultipleObjectsEx);
+ CHECK(g_msg_wait_for_multiple_objects_ex);
+
+ g_set_timer = GET_USER32_API(SetTimer);
+ CHECK(g_set_timer);
+
+ g_kill_timer = GET_USER32_API(KillTimer);
+ CHECK(g_kill_timer);
+}
+
} // namespace
static const wchar_t kWndClassFormat[] = L"Chrome_MessagePumpWindow_%p";
@@ -42,6 +122,10 @@ static const int kMessageFilterCode = 0x5001;
//-----------------------------------------------------------------------------
// MessagePumpWin public:
+MessagePumpWin::MessagePumpWin() {
+ InitUser32APIs();
+}
+
void MessagePumpWin::Run(Delegate* delegate) {
RunState s;
s.delegate = delegate;
@@ -96,8 +180,8 @@ MessagePumpForUI::MessagePumpForUI()
}
MessagePumpForUI::~MessagePumpForUI() {
- DestroyWindow(message_hwnd_);
- UnregisterClass(MAKEINTATOM(atom_), CURRENT_MODULE());
+ g_destroy_window(message_hwnd_);
+ g_unregister_class(MAKEINTATOM(atom_), CURRENT_MODULE());
}
void MessagePumpForUI::ScheduleWork() {
@@ -105,8 +189,8 @@ void MessagePumpForUI::ScheduleWork() {
return; // Someone else continued the pumping.
// Make sure the MessagePump does some work for us.
- BOOL ret = PostMessage(message_hwnd_, kMsgHaveWork,
- reinterpret_cast<WPARAM>(this), 0);
+ BOOL ret = g_post_message(message_hwnd_, kMsgHaveWork,
+ reinterpret_cast<WPARAM>(this), 0);
if (ret)
return; // There was room in the Window Message queue.
@@ -146,7 +230,7 @@ LRESULT CALLBACK MessagePumpForUI::WndProcThunk(
reinterpret_cast<MessagePumpForUI*>(wparam)->HandleTimerMessage();
break;
}
- return DefWindowProc(hwnd, message, wparam, lparam);
+ return g_def_window_proc(hwnd, message, wparam, lparam);
}
void MessagePumpForUI::DoRunLoop() {
@@ -187,7 +271,7 @@ void MessagePumpForUI::DoRunLoop() {
// don't want to disturb that timer if it is already in flight. However,
// if we did do all remaining delayed work, then lets kill the WM_TIMER.
if (more_work_is_plausible && delayed_work_time_.is_null())
- KillTimer(message_hwnd_, reinterpret_cast<UINT_PTR>(this));
+ g_kill_timer(message_hwnd_, reinterpret_cast<UINT_PTR>(this));
if (state_->should_quit)
break;
@@ -215,11 +299,11 @@ void MessagePumpForUI::InitMessageWnd() {
wc.lpfnWndProc = base::win::WrappedWindowProc<WndProcThunk>;
wc.hInstance = instance;
wc.lpszClassName = class_name.c_str();
- atom_ = RegisterClassEx(&wc);
+ atom_ = g_register_class(&wc);
DCHECK(atom_);
- message_hwnd_ = CreateWindow(MAKEINTATOM(atom_), 0, 0, 0, 0, 0, 0,
- HWND_MESSAGE, 0, instance, 0);
+ message_hwnd_ = g_create_window_ex(0, MAKEINTATOM(atom_), 0, 0, 0, 0, 0, 0,
+ HWND_MESSAGE, 0, instance, 0);
DCHECK(message_hwnd_);
}
@@ -233,8 +317,8 @@ void MessagePumpForUI::WaitForWork() {
if (delay < 0) // Negative value means no timers waiting.
delay = INFINITE;
- DWORD result =
- MsgWaitForMultipleObjectsEx(0, NULL, delay, QS_ALLINPUT, wait_flags);
+ DWORD result = g_msg_wait_for_multiple_objects_ex(0, NULL, delay,
+ QS_ALLINPUT, wait_flags);
if (WAIT_OBJECT_0 == result) {
// A WM_* message is available.
@@ -252,9 +336,9 @@ void MessagePumpForUI::WaitForWork() {
// current thread.
MSG msg = {0};
bool has_pending_sent_message =
- (HIWORD(GetQueueStatus(QS_SENDMESSAGE)) & QS_SENDMESSAGE) != 0;
+ (HIWORD(g_get_queue_status(QS_SENDMESSAGE)) & QS_SENDMESSAGE) != 0;
if (has_pending_sent_message ||
- PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
+ g_peek_message(&msg, NULL, 0, 0, PM_NOREMOVE)) {
return;
}
@@ -292,7 +376,7 @@ void MessagePumpForUI::HandleWorkMessage() {
}
void MessagePumpForUI::HandleTimerMessage() {
- KillTimer(message_hwnd_, reinterpret_cast<UINT_PTR>(this));
+ g_kill_timer(message_hwnd_, reinterpret_cast<UINT_PTR>(this));
// If we are being called outside of the context of Run, then don't do
// anything. This could correspond to a MessageBox call or something of
@@ -337,8 +421,8 @@ void MessagePumpForUI::RescheduleTimer() {
// Create a WM_TIMER event that will wake us up to check for any pending
// timers (in case we are running within a nested, external sub-pump).
- BOOL ret = SetTimer(message_hwnd_, reinterpret_cast<UINT_PTR>(this),
- delay_msec, NULL);
+ BOOL ret = g_set_timer(message_hwnd_, reinterpret_cast<UINT_PTR>(this),
+ delay_msec, NULL);
if (ret)
return;
// If we can't set timers, we are in big trouble... but cross our fingers
@@ -355,12 +439,12 @@ bool MessagePumpForUI::ProcessNextWindowsMessage() {
// case to ensure that the message loop peeks again instead of calling
// MsgWaitForMultipleObjectsEx again.
bool sent_messages_in_queue = false;
- DWORD queue_status = GetQueueStatus(QS_SENDMESSAGE);
+ DWORD queue_status = g_get_queue_status(QS_SENDMESSAGE);
if (HIWORD(queue_status) & QS_SENDMESSAGE)
sent_messages_in_queue = true;
MSG msg;
- if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != FALSE)
+ if (g_peek_message(&msg, NULL, 0, 0, PM_REMOVE) != FALSE)
return ProcessMessageHelper(msg);
return sent_messages_in_queue;
@@ -373,7 +457,7 @@ bool MessagePumpForUI::ProcessMessageHelper(const MSG& msg) {
// Repost the QUIT message so that it will be retrieved by the primary
// GetMessage() loop.
state_->should_quit = true;
- PostQuitMessage(static_cast<int>(msg.wParam));
+ g_post_quit(static_cast<int>(msg.wParam));
return false;
}
@@ -381,11 +465,11 @@ bool MessagePumpForUI::ProcessMessageHelper(const MSG& msg) {
if (msg.message == kMsgHaveWork && msg.hwnd == message_hwnd_)
return ProcessPumpReplacementMessage();
- if (CallMsgFilter(const_cast<MSG*>(&msg), kMessageFilterCode))
+ if (g_call_msg_filter(const_cast<MSG*>(&msg), kMessageFilterCode))
return true;
- TranslateMessage(&msg);
- DispatchMessage(&msg);
+ g_translate_message(&msg);
+ g_dispatch_message(&msg);
return true;
}
@@ -401,7 +485,8 @@ bool MessagePumpForUI::ProcessPumpReplacementMessage() {
// asynchronous to this thread!!
MSG msg;
- const bool have_message = PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != FALSE;
+ const bool have_message =
+ g_peek_message(&msg, NULL, 0, 0, PM_REMOVE) != FALSE;
// Expect no message or a message different than kMsgHaveWork.
DCHECK(!have_message || kMsgHaveWork != msg.message ||
@@ -531,7 +616,7 @@ void MessagePumpForGpu::WaitForWork() {
debug::Alias(&delay);
DWORD result =
- MsgWaitForMultipleObjectsEx(1, &event_, delay, QS_ALLINPUT, 0);
+ g_msg_wait_for_multiple_objects_ex(1, &event_, delay, QS_ALLINPUT, 0);
DCHECK_NE(WAIT_FAILED, result) << GetLastError();
if (result != WAIT_TIMEOUT) {
// Either work or message available.
@@ -542,20 +627,20 @@ void MessagePumpForGpu::WaitForWork() {
bool MessagePumpForGpu::ProcessNextMessage() {
MSG msg;
- if (!PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
+ if (!g_peek_message(&msg, nullptr, 0, 0, PM_REMOVE))
return false;
if (msg.message == WM_QUIT) {
// Repost the QUIT message so that it will be retrieved by the primary
// GetMessage() loop.
state_->should_quit = true;
- PostQuitMessage(static_cast<int>(msg.wParam));
+ g_post_quit(static_cast<int>(msg.wParam));
return false;
}
- if (!CallMsgFilter(const_cast<MSG*>(&msg), kMessageFilterCode)) {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
+ if (!g_call_msg_filter(const_cast<MSG*>(&msg), kMessageFilterCode)) {
+ g_translate_message(&msg);
+ g_dispatch_message(&msg);
}
return true;

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