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Kernel: Rewrite all read/write functions to use BAN::ByteSpan

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This allows us to not work with raw pointers and use sized containers
for reading and writing.
This commit is contained in:
Bananymous
2023-10-20 05:07:44 +03:00
parent 71cad2fc38
commit f3d9da9549
36 changed files with 216 additions and 177 deletions
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16
kernel/kernel/Terminal/TTY.cpp
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@@ -95,7 +95,7 @@ namespace Kernel
TTY::current()->m_tty_ctrl.semaphore.block();
Input::KeyEvent event;
size_t read = MUST(inode->read(0, &event, sizeof(event)));
size_t read = MUST(inode->read(0, BAN::ByteSpan::from(event)));
ASSERT(read == sizeof(event));
TTY::current()->on_key_event(event);
}
@@ -298,7 +298,7 @@ namespace Kernel
putchar_impl(ch);
}
BAN::ErrorOr<size_t> TTY::read_impl(off_t, void* buffer, size_t count)
BAN::ErrorOr<size_t> TTY::read_impl(off_t, BAN::ByteSpan buffer)
{
LockGuard _(m_lock);
while (!m_output.flush)
@@ -314,8 +314,8 @@ namespace Kernel
return 0;
}
size_t to_copy = BAN::Math::min<size_t>(count, m_output.bytes);
memcpy(buffer, m_output.buffer.data(), to_copy);
size_t to_copy = BAN::Math::min<size_t>(buffer.size(), m_output.bytes);
memcpy(buffer.data(), m_output.buffer.data(), to_copy);
memmove(m_output.buffer.data(), m_output.buffer.data() + to_copy, m_output.bytes - to_copy);
m_output.bytes -= to_copy;
@@ -328,12 +328,12 @@ namespace Kernel
return to_copy;
}
BAN::ErrorOr<size_t> TTY::write_impl(off_t, const void* buffer, size_t count)
BAN::ErrorOr<size_t> TTY::write_impl(off_t, BAN::ConstByteSpan buffer)
{
LockGuard _(m_lock);
for (size_t i = 0; i < count; i++)
putchar(((uint8_t*)buffer)[i]);
return count;
for (size_t i = 0; i < buffer.size(); i++)
putchar(buffer[i]);
return buffer.size();
}
bool TTY::has_data_impl() const