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Start refactoring the windowing system to use an event loop.

Browse source 
Userspace programs can now open /dev/gui_events and read a stream of GUI_Event
structs one at a time.

I was stuck on a stupid problem where we'd reenter Scheduler::yield() due to
having one of the has_data_available_for_reading() implementations using locks.
This commit is contained in:
Andreas Kling 2019-01-14 14:21:51 +01:00
parent b4da4e8fbd
commit b0e3f73375
46 changed files with 283 additions and 292 deletions
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4
Kernel/Syscall.cpp
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@ -191,10 +191,6 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
return current->gui$create_window((const GUI_CreateWindowParameters*)arg1);
case Syscall::SC_gui_destroy_window:
return current->gui$destroy_window((int)arg1);
case Syscall::SC_gui_create_widget:
return current->gui$create_widget((int)arg1, (const GUI_CreateWidgetParameters*)arg2);
case Syscall::SC_gui_destroy_widget:
return current->gui$destroy_widget((int)arg1);
default:
kprintf("<%u> int0x80: Unknown function %u requested {%x, %x, %x}\n", current->pid(), function, arg1, arg2, arg3);
break;