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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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14
kernel/kernel/FS/Pipe.cpp
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@@ -39,7 +39,7 @@ namespace Kernel
m_semaphore.unblock();
}
BAN::ErrorOr<size_t> Pipe::read_impl(off_t, void* buffer, size_t count)
BAN::ErrorOr<size_t> Pipe::read_impl(off_t, BAN::ByteSpan buffer)
{
LockGuard _(m_lock);
while (m_buffer.empty())
@@ -51,8 +51,8 @@ namespace Kernel
m_lock.lock();
}
size_t to_copy = BAN::Math::min<size_t>(count, m_buffer.size());
memcpy(buffer, m_buffer.data(), to_copy);
size_t to_copy = BAN::Math::min<size_t>(buffer.size(), m_buffer.size());
memcpy(buffer.data(), m_buffer.data(), to_copy);
memmove(m_buffer.data(), m_buffer.data() + to_copy, m_buffer.size() - to_copy);
MUST(m_buffer.resize(m_buffer.size() - to_copy));
@@ -64,14 +64,14 @@ namespace Kernel
return to_copy;
}
BAN::ErrorOr<size_t> Pipe::write_impl(off_t, const void* buffer, size_t count)
BAN::ErrorOr<size_t> Pipe::write_impl(off_t, BAN::ConstByteSpan buffer)
{
LockGuard _(m_lock);
size_t old_size = m_buffer.size();
TRY(m_buffer.resize(old_size + count));
memcpy(m_buffer.data() + old_size, buffer, count);
TRY(m_buffer.resize(old_size + buffer.size()));
memcpy(m_buffer.data() + old_size, buffer.data(), buffer.size());
timespec current_time = SystemTimer::get().real_time();
m_mtime = current_time;
@@ -79,7 +79,7 @@ namespace Kernel
m_semaphore.unblock();
return count;
return buffer.size();
}
}