diff options
Diffstat (limited to 'common/stream.cpp')
| -rw-r--r-- | common/stream.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/common/stream.cpp b/common/stream.cpp index 57b1b8ba93..2851b3a320 100644 --- a/common/stream.cpp +++ b/common/stream.cpp @@ -393,7 +393,14 @@ bool BufferedSeekableReadStream::seek(int32 offset, int whence) { // just seek normally in the parent stream. if (whence == SEEK_CUR) offset -= (_bufSize - _pos); - _pos = _bufSize; + // We invalidate the buffer here. This assures that successive seeks + // do not have the chance to incorrectly think they seeked back into + // the buffer. + // Note: This does not take full advantage of the buffer. But it is + // a simple way to prevent nasty errors. It would be possible to take + // full advantage of the buffer by saving its actual start position. + // This seems not worth the effort for this seemingly uncommon use. + _pos = _bufSize = 0; _parentStream->seek(offset, whence); } |