Kernel: Add basic support for O_NONBLOCK (only for tty)

2023-09-04 12:57:52 +03:00
parent 6f002c926a
commit b2139c0b1e
4 changed files with 11 additions and 1 deletions
--- a/kernel/include/kernel/Terminal/TTY.h
+++ b/kernel/include/kernel/Terminal/TTY.h
@@ -35,6 +35,7 @@ namespace Kernel

 		virtual BAN::ErrorOr<size_t> read(size_t, void*, size_t) override;
 		virtual BAN::ErrorOr<size_t> write(size_t, const void*, size_t) override;
+		virtual bool has_data() const override;

 	private:
 		void clear();
@@ -78,7 +79,7 @@ namespace Kernel
 		};

 	private:
-		Kernel::SpinLock m_lock;
+		mutable Kernel::SpinLock m_lock;

 		State m_state { State::Normal };
 		AnsiState m_ansi_state { };