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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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2
VirtualFileSystem/CharacterDevice.h
View file

@ -12,7 +12,7 @@ public:
RetainPtr<FileDescriptor> open(int options);
virtual bool has_data_available_for_reading() const = 0;
virtual bool has_data_available_for_reading(Process&) const = 0;
virtual ssize_t read(byte* buffer, size_t bufferSize) = 0;
virtual ssize_t write(const byte* buffer, size_t bufferSize) = 0;