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AK: Make MappedFile heap-allocated and ref-counted

Let's adapt this class a bit better to how it's actually being used.

Instead of having valid/invalid states and storing an error in case
it's invalid, a MappedFile is now always valid, and the factory
function that creates it will return an OSError if mapping fails.
This commit is contained in:
Andreas Kling 2021-01-10 15:55:54 +01:00
parent 70fce5c4c7
commit 2f3b901f7f
36 changed files with 184 additions and 199 deletions

View file

@ -294,12 +294,10 @@ static RefPtr<Gfx::Bitmap> load_impl(const u8* data, size_t data_size)
template<typename TContext>
static RefPtr<Gfx::Bitmap> load(const StringView& path)
{
MappedFile mapped_file(path);
if (!mapped_file.is_valid()) {
auto file_or_error = MappedFile::map(path);
if (file_or_error.is_error())
return nullptr;
}
auto bitmap = load_impl<TContext>((const u8*)mapped_file.data(), mapped_file.size());
auto bitmap = load_impl<TContext>((const u8*)file_or_error.value()->data(), file_or_error.value()->size());
if (bitmap)
bitmap->set_mmap_name(String::formatted("Gfx::Bitmap [{}] - Decoded {}: {}",
bitmap->size(),