Mercurial > hg4j
changeset 163:a5198b6487dc
Record reasons for slow status for future reference
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
---|---|
date | Thu, 10 Mar 2011 03:18:49 +0100 (2011-03-10) |
parents | c17a08095e44 |
children | d51f1c6aaa28 |
files | src/org/tmatesoft/hg/repo/HgDataFile.java |
diffstat | 1 files changed, 12 insertions(+), 5 deletions(-) [+] |
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--- a/src/org/tmatesoft/hg/repo/HgDataFile.java Wed Mar 09 13:57:33 2011 +0100 +++ b/src/org/tmatesoft/hg/repo/HgDataFile.java Thu Mar 10 03:18:49 2011 +0100 @@ -192,16 +192,23 @@ public boolean isCopy() throws HgDataStreamException { if (metadata == null || !metadata.checked(0)) { // content() always initializes metadata. - // FIXME this is expensive way to find out metadata, distinct RevlogStream.Iterator would be better. + // FIXME this is expensive way to find out metadata, distinct RevlogStream.Iterator would be better. + // Alternatively, may parameterize MetadataContentPipe to do prepare only. + // For reference, when throwing CancelledException, hg status -A --rev 3:80 takes 70 ms + // however, if we just consume buffer instead (buffer.position(buffer.limit()), same command takes ~320ms + // (compared to command-line counterpart of 190ms) try { content(0, new ByteChannel() { // No-op channel - public int write(ByteBuffer buffer) throws IOException { + public int write(ByteBuffer buffer) throws IOException, CancelledException { // pretend we consumed whole buffer - int rv = buffer.remaining(); - buffer.position(buffer.limit()); - return rv; +// int rv = buffer.remaining(); +// buffer.position(buffer.limit()); +// return rv; + throw new CancelledException(); } }); + } catch (CancelledException ex) { + // it's ok, we did that } catch (Exception ex) { throw new HgDataStreamException("Can't initialize metadata", ex); }