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LibCore: Fix relative seeking in IODevice

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The recently introduced read buffer in IODevice broke relative seeking.
The amount of data in the buffer wouldn't get taken into account.
This commit is contained in:
Arne Elster 2021-11-29 19:56:29 +01:00 • committed by Andreas Kling
parent b818d4c7e3
commit cdaa179eeb
4 changed files with 35 additions and 1 deletions
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1
Userland/Libraries/LibCore/IODevice.cpp
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@ -245,6 +245,7 @@ bool IODevice::seek(i64 offset, SeekMode mode, off_t* pos)
break;
case SeekMode::FromCurrentPosition:
m = SEEK_CUR;
offset -= m_buffered_data.size();
break;
case SeekMode::FromEndPosition:
m = SEEK_END;