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Kernel: Move TTY subsystem to use KString instead of AK::String

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This is minor progress on removing the `AK::String` API from the Kernel
in the interest of improving OOM safety.
This commit is contained in:
Brian Gianforcaro 2021-10-31 22:47:19 -07:00 • committed by Andreas Kling
parent 71f05c70b4
commit 9f6eabd73a
10 changed files with 36 additions and 27 deletions
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11
Kernel/TTY/VirtualConsole.cpp
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@ -103,7 +103,12 @@ void VirtualConsole::set_graphical(bool graphical)
UNMAP_AFTER_INIT NonnullRefPtr<VirtualConsole> VirtualConsole::create(size_t index)
{
auto virtual_console_or_error = DeviceManagement::try_create_device<VirtualConsole>(index);
// FIXME: Don't make a temporary String here
auto pts_name_or_error = KString::try_create(String::formatted("/dev/tty/{}", index));
VERIFY(!pts_name_or_error.is_error());
auto pts_name = pts_name_or_error.release_value();
auto virtual_console_or_error = DeviceManagement::try_create_device<VirtualConsole>(index, move(pts_name));
// FIXME: Find a way to propagate errors
VERIFY(!virtual_console_or_error.is_error());
return virtual_console_or_error.release_value();
@ -123,7 +128,6 @@ UNMAP_AFTER_INIT NonnullRefPtr<VirtualConsole> VirtualConsole::create_with_prese
UNMAP_AFTER_INIT void VirtualConsole::initialize()
{
m_tty_name = String::formatted("/dev/tty{}", m_index);
VERIFY(GraphicsManagement::the().console());
set_size(GraphicsManagement::the().console()->max_column(), GraphicsManagement::the().console()->max_row());
m_console_impl.set_size(GraphicsManagement::the().console()->max_column(), GraphicsManagement::the().console()->max_row());
@ -174,9 +178,10 @@ void VirtualConsole::refresh_after_resolution_change()
flush_dirty_lines();
}
UNMAP_AFTER_INIT VirtualConsole::VirtualConsole(const unsigned index)
UNMAP_AFTER_INIT VirtualConsole::VirtualConsole(const unsigned index, NonnullOwnPtr<KString> tty_name)
: TTY(4, index)
, m_index(index)
, m_tty_name(move(tty_name))
, m_console_impl(*this)
{
initialize();