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@ -164,6 +164,14 @@ class DeltaWindow {
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return DeltaIndex.estimateIndexSize(ent.getWeight()); |
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} |
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private static long estimateIndexSize(DeltaWindowEntry ent) { |
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if (ent.buffer == null) |
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return estimateSize(ent.object); |
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int len = ent.buffer.length; |
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return DeltaIndex.estimateIndexSize(len) - len; |
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} |
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private void clear(DeltaWindowEntry ent) { |
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if (ent.index != null) |
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loaded -= ent.index.getIndexSize(); |
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@ -420,6 +428,8 @@ class DeltaWindow {
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IOException, LargeObjectException { |
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DeltaIndex idx = ent.index; |
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if (idx == null) { |
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checkLoadable(ent, estimateIndexSize(ent)); |
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try { |
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idx = new DeltaIndex(buffer(ent)); |
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} catch (OutOfMemoryError noMemory) { |
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@ -439,6 +449,8 @@ class DeltaWindow {
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IncorrectObjectTypeException, IOException, LargeObjectException { |
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byte[] buf = ent.buffer; |
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if (buf == null) { |
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checkLoadable(ent, ent.size()); |
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buf = PackWriter.buffer(config, reader, ent.object); |
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if (0 < maxMemory) |
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loaded += buf.length; |
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@ -447,6 +459,18 @@ class DeltaWindow {
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return buf; |
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} |
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private void checkLoadable(DeltaWindowEntry ent, long need) { |
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int tail = next(resSlot); |
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while (maxMemory < loaded + need) { |
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DeltaWindowEntry cur = window[tail]; |
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clear(cur); |
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if (cur == ent) |
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throw new LargeObjectException.ExceedsLimit( |
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maxMemory, loaded + need); |
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tail = next(tail); |
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} |
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} |
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private Deflater deflater() { |
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if (deflater == null) |
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deflater = new Deflater(config.getCompressionLevel()); |
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