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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
Notes: sideshowbarker 2024-07-19 18:31:08 +09:00
46 changed files with 283 additions and 292 deletions
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4
VirtualFileSystem/FileDescriptor.cpp
View file

@ -173,14 +173,14 @@ bool FileDescriptor::can_write()
return true;
}
bool FileDescriptor::has_data_available_for_reading()
bool FileDescriptor::has_data_available_for_reading(Process& process)
{
if (is_fifo()) {
ASSERT(fifo_direction() == FIFO::Reader);
return m_fifo->can_read();
}
if (m_vnode->isCharacterDevice())
return m_vnode->characterDevice()->has_data_available_for_reading();
return m_vnode->characterDevice()->has_data_available_for_reading(process);
return true;
}