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WindowServer: Begin refactoring towards a fully asynchronous protocol.

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In order to move the WindowServer to userspace, I have to eliminate its
dependence on system call facilities. The communication channel with each
client needs to be message-based in both directions.
This commit is contained in:
Andreas Kling 2019-02-13 17:54:30 +01:00
parent 96352ab735
commit 4f98a35beb
18 changed files with 242 additions and 91 deletions
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31
WindowServer/WSMessageLoop.cpp
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@ -67,6 +67,21 @@ int WSMessageLoop::exec()
}
}
Process* WSMessageLoop::process_from_client_id(int client_id)
{
// FIXME: This shouldn't work this way lol.
return (Process*)client_id;
}
void WSMessageLoop::post_message_to_client(int client_id, const GUI_Event& message)
{
auto* process = process_from_client_id(client_id);
if (!process)
return;
LOCKER(process->gui_events_lock());
process->gui_events().append(move(message));
}
void WSMessageLoop::post_message(WSMessageReceiver* receiver, OwnPtr<WSMessage>&& message)
{
LOCKER(m_lock);
@ -246,3 +261,19 @@ void WSMessageLoop::drain_keyboard()
screen.on_receive_keyboard_data(event);
}
}
ssize_t WSMessageLoop::on_receive_from_client(int client_id, const byte* data, size_t size)
{
LOCKER(m_lock);
ASSERT(size == sizeof(GUI_ClientMessage));
auto& message = *reinterpret_cast<const GUI_ClientMessage*>(data);
switch (message.type) {
case GUI_ClientMessage::Type::CreateMenubar:
post_message(&WSWindowManager::the(), make<WSAPICreateMenubarRequest>(client_id));
break;
case GUI_ClientMessage::Type::DestroyMenubar:
post_message(&WSWindowManager::the(), make<WSAPIDestroyMenubarRequest>(client_id, message.menu.menubar_id));
break;
}
return size;
}