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LibCore: Calculate the correct seek offset for buffered streams

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Tim Schumacher 2023-01-16 15:46:59 +01:00 • committed by Jelle Raaijmakers
parent caeb772894
commit bdf991fe76
2 changed files with 74 additions and 0 deletions
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4
Userland/Libraries/LibCore/Stream.h
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@ -875,8 +875,12 @@ public:
virtual void close() override { m_helper.stream().close(); }
virtual ErrorOr<off_t> seek(i64 offset, SeekMode mode) override
{
if (mode == SeekMode::FromCurrentPosition)
offset = offset - m_helper.buffered_data_size();
auto result = TRY(m_helper.stream().seek(offset, mode));
m_helper.clear_buffer();
return result;
}
virtual ErrorOr<void> truncate(off_t length) override