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AK: Override read_until_filled in FixedMemoryStream

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This specialized method allow significant performance improvements for
the user.
This commit is contained in:
Lucas CHOLLET 2023-06-06 13:52:56 -04:00 • committed by Jelle Raaijmakers
parent d00a563462
commit 102fdf6305
2 changed files with 12 additions and 0 deletions
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11
AK/MemoryStream.cpp
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@ -54,6 +54,17 @@ ErrorOr<Bytes> FixedMemoryStream::read_some(Bytes bytes)
return bytes.trim(to_read);
}
ErrorOr<void> FixedMemoryStream::read_until_filled(AK::Bytes bytes)
{
if (remaining() < bytes.size())
return Error::from_string_view_or_print_error_and_return_errno("Can't read past the end of the stream memory"sv, EINVAL);
m_bytes.slice(m_offset).copy_trimmed_to(bytes);
m_offset += bytes.size();
return {};
}
ErrorOr<size_t> FixedMemoryStream::seek(i64 offset, SeekMode seek_mode)
{
switch (seek_mode) {