dfs: handle short copies
`copy` is documented as possibly returning a smaller number of bytes than requested. In practice, this can occur if a block is cached and the reader never pulls in the file to check its size. Bug: 565874 Change-Id: I1e53b3d2f4ab09334178934dc0ef74ea99045cd3 Signed-off-by: wh <wh9692@protonmail.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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@ -607,8 +607,15 @@ private IOException packfileIsTruncated() {
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private void readFully(long position, byte[] dstbuf, int dstoff, int cnt,
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DfsReader ctx) throws IOException {
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if (ctx.copy(this, position, dstbuf, dstoff, cnt) != cnt)
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throw new EOFException();
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while (cnt > 0) {
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int copied = ctx.copy(this, position, dstbuf, dstoff, cnt);
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if (copied == 0) {
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throw new EOFException();
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}
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position += copied;
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dstoff += copied;
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cnt -= copied;
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}
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}
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ObjectLoader load(DfsReader ctx, long pos)
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