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Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>

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We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace!
This was a slightly tedious refactoring that took a long time, so it's
not unlikely that some bugs crept in.

Nevertheless, it does pass basic functionality testing, and it's just
real nice to finally see the same pattern in all contexts. :^)
This commit is contained in:
Andreas Kling 2021-11-08 00:51:39 +01:00
parent 7ee10c6926
commit 79fa9765ca
262 changed files with 2415 additions and 2600 deletions
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12
Kernel/TTY/TTY.h
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@ -21,12 +21,12 @@ class TTY : public CharacterDevice {
public:
virtual ~TTY() override;
virtual KResultOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual KResultOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual ErrorOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
virtual bool can_read(const OpenFileDescription&, size_t) const override;
virtual bool can_write(const OpenFileDescription&, size_t) const override;
virtual KResult ioctl(OpenFileDescription&, unsigned request, Userspace<void*> arg) override final;
virtual KResultOr<NonnullOwnPtr<KString>> pseudo_path(const OpenFileDescription&) const override;
virtual ErrorOr<void> ioctl(OpenFileDescription&, unsigned request, Userspace<void*> arg) override final;
virtual ErrorOr<NonnullOwnPtr<KString>> pseudo_path(const OpenFileDescription&) const override;
virtual KString const& tty_name() const = 0;
@ -40,7 +40,7 @@ public:
return 0;
}
KResult set_termios(const termios&);
ErrorOr<void> set_termios(const termios&);
bool should_generate_signals() const { return m_termios.c_lflag & ISIG; }
bool should_flush_on_signal() const { return !(m_termios.c_lflag & NOFLSH); }
bool should_echo_input() const { return m_termios.c_lflag & ECHO; }
@ -50,7 +50,7 @@ public:
void hang_up();
protected:
virtual KResultOr<size_t> on_tty_write(const UserOrKernelBuffer&, size_t) = 0;
virtual ErrorOr<size_t> on_tty_write(const UserOrKernelBuffer&, size_t) = 0;
void set_size(unsigned short columns, unsigned short rows);
TTY(unsigned major, unsigned minor);