Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Add asserts about having locked TTY's write lock 

This for some reason fixes booting on real hardware? :D
This commit is contained in:
Bananymous 2024-09-18 00:56:48 +03:00
parent 999eb53364
commit 8e08046519
2 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
kernel/include/kernel/Terminal/TTY.h
View File

@ -92,6 +92,7 @@ namespace Kernel
};
Buffer m_output;
protected:
RecursiveSpinLock m_write_lock;
};

11
kernel/kernel/Terminal/VirtualTTY.cpp
View File

@ -49,6 +49,7 @@ namespace Kernel
void VirtualTTY::clear()
{
SpinLockGuard _(m_write_lock);
for (uint32_t i = 0; i < m_width * m_height; i++)
m_buffer[i] = { .foreground = m_foreground, .background = m_background, .codepoint = ' ' };
m_terminal_driver->clear(m_background);
@ -56,6 +57,8 @@ namespace Kernel
void VirtualTTY::set_font(const LibFont::Font& font)
{
SpinLockGuard _(m_write_lock);
m_terminal_driver->set_font(font);
uint32_t new_width = m_terminal_driver->width();
@ -86,6 +89,7 @@ namespace Kernel
void VirtualTTY::set_cursor_position(uint32_t x, uint32_t y)
{
ASSERT(m_write_lock.current_processor_has_lock());
static uint32_t last_x = -1;
static uint32_t last_y = -1;
if (last_x != uint32_t(-1) && last_y != uint32_t(-1))
@ -98,6 +102,7 @@ namespace Kernel
void VirtualTTY::reset_ansi()
{
ASSERT(m_write_lock.current_processor_has_lock());
m_ansi_state.index = 0;
m_ansi_state.nums[0] = -1;
m_ansi_state.nums[1] = -1;
@ -107,6 +112,7 @@ namespace Kernel
void VirtualTTY::handle_ansi_csi_color()
{
ASSERT(m_write_lock.current_processor_has_lock());
switch (m_ansi_state.nums[0])
{
case -1:
@ -155,6 +161,7 @@ namespace Kernel
void VirtualTTY::handle_ansi_csi(uint8_t ch)
{
ASSERT(m_write_lock.current_processor_has_lock());
switch (ch)
{
case '0': case '1': case '2': case '3': case '4':
@ -360,6 +367,7 @@ namespace Kernel
void VirtualTTY::render_from_buffer(uint32_t x, uint32_t y)
{
ASSERT(m_write_lock.current_processor_has_lock());
ASSERT(x < m_width && y < m_height);
const auto& cell = m_buffer[y * m_width + x];
m_terminal_driver->putchar_at(cell.codepoint, x, y, cell.foreground, cell.background);
@ -367,6 +375,7 @@ namespace Kernel
void VirtualTTY::putchar_at(uint32_t codepoint, uint32_t x, uint32_t y)
{
ASSERT(m_write_lock.current_processor_has_lock());
ASSERT(x < m_width && y < m_height);
auto& cell = m_buffer[y * m_width + x];
cell.codepoint = codepoint;
@ -377,6 +386,8 @@ namespace Kernel
void VirtualTTY::putchar_impl(uint8_t ch)
{
ASSERT(m_write_lock.current_processor_has_lock());
uint32_t codepoint = ch;
switch (m_state)