hg4j: src/org/tmatesoft/hg/repo/Revlog.java annotate

annotate src/org/tmatesoft/hg/repo/Revlog.java @ 262:3dcd3dd90c77

Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only

author	Artem Tikhomirov <tikhomirov.artem@gmail.com>
date	Thu, 18 Aug 2011 03:46:36 +0200
parents	0e01f9182e16
children	9fb50c04f03c

rev	line source
22 603806cd2dc6 Status of local working dir against non-tip base revision Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 21 diff changeset	1 /*
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	2 * Copyright (c) 2010-2011 TMate Software Ltd
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	3 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	4 * This program is free software; you can redistribute it and/or modify
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	5 * it under the terms of the GNU General Public License as published by
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	6 * the Free Software Foundation; version 2 of the License.
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	7 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	8 * This program is distributed in the hope that it will be useful,
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	11 * GNU General Public License for more details.
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	12 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	13 * For information on how to redistribute this software under
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	14 * the terms of a license other than GNU General Public License
102 a3a2e5deb320 Updated contact address to support@hg4j.com Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 88 diff changeset	15 * contact TMate Software at support@hg4j.com
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	16 */
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	17 package org.tmatesoft.hg.repo;
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	18
243 0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	19 import static org.tmatesoft.hg.core.Nodeid.NULL;
80 4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 77 diff changeset	20 import static org.tmatesoft.hg.repo.HgRepository.BAD_REVISION;
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	21 import static org.tmatesoft.hg.repo.HgRepository.TIP;
56 576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	22
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	23 import java.io.IOException;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	24 import java.nio.ByteBuffer;
56 576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	25 import java.util.Arrays;
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	26 import java.util.Collection;
171 2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	27 import java.util.HashSet;
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	28 import java.util.LinkedList;
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	29 import java.util.List;
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	30
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	31 import org.tmatesoft.hg.core.HgBadStateException;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	32 import org.tmatesoft.hg.core.HgException;
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	33 import org.tmatesoft.hg.core.Nodeid;
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	34 import org.tmatesoft.hg.internal.DataAccess;
77 c677e1593919 Moved RevlogStream implementation into .internal Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 74 diff changeset	35 import org.tmatesoft.hg.internal.RevlogStream;
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	36 import org.tmatesoft.hg.util.ByteChannel;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	37 import org.tmatesoft.hg.util.CancelSupport;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	38 import org.tmatesoft.hg.util.CancelledException;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	39 import org.tmatesoft.hg.util.ProgressSupport;
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	40
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	41
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	42 /**
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	43 * Base class for all Mercurial entities that are serialized in a so called revlog format (changelog, manifest, data files).
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	44 *
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	45 * Implementation note:
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	46 * Hides actual actual revlog stream implementation and its access methods (i.e. RevlogStream.Inspector), iow shall not expose anything internal
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	47 * in public methods.
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	48 *
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	49 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	50 * @author TMate Software Ltd.
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	51 */
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	52 abstract class Revlog {
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	53
115 c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	54 private final HgRepository repo;
21 e929cecae4e1 Refactor to move revlog content to base class Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 3 diff changeset	55 protected final RevlogStream content;
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	56
115 c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	57 protected Revlog(HgRepository hgRepo, RevlogStream contentStream) {
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	58 if (hgRepo == null) {
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	59 throw new IllegalArgumentException();
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	60 }
115 c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	61 if (contentStream == null) {
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 56 diff changeset	62 throw new IllegalArgumentException();
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	63 }
115 c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	64 repo = hgRepo;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	65 content = contentStream;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	66 }
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	67
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	68 // invalid Revlog
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	69 protected Revlog(HgRepository hgRepo) {
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	70 repo = hgRepo;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	71 content = null;
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	72 }
08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	73
08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	74 public final HgRepository getRepo() {
115 c0cc2535462c Introduced channels to pipeline (and easily filter) data streams Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 102 diff changeset	75 return repo;
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	76 }
08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	77
135 3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	78 public final int getRevisionCount() {
21 e929cecae4e1 Refactor to move revlog content to base class Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 3 diff changeset	79 return content.revisionCount();
e929cecae4e1 Refactor to move revlog content to base class Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 3 diff changeset	80 }
80 4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 77 diff changeset	81
135 3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	82 public final int getLastRevision() {
3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	83 return content.revisionCount() - 1;
3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	84 }
3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	85
3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	86 public final Nodeid getRevision(int revision) {
80 4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 77 diff changeset	87 // XXX cache nodeids?
4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 77 diff changeset	88 return Nodeid.fromBinary(content.nodeid(revision), 0);
4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 77 diff changeset	89 }
37 e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	90
243 0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	91 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	92 * Get local revision number (index) of the specified revision.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	93 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	94 * For occasional queries, this method works with decent performance, despite its O(n/2) approach.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	95 * Alternatively, if you need to perform multiple queries (e.g. at least 15-20), {@link RevisionMap} may come handy.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	96 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	97 * @param nid revision to look up
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	98 * @return revision index, or {@link HgRepository#BAD_REVISION} if specified revision not found.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	99 */
135 3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	100 public final int getLocalRevision(Nodeid nid) {
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	101 int revision = content.findLocalRevisionNumber(nid);
80 4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 77 diff changeset	102 if (revision == BAD_REVISION) {
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	103 throw new IllegalArgumentException(String.format("%s doesn't represent a revision of %s", nid.toString(), this /XXX HgDataFile.getPath might be more suitable here/));
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	104 }
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	105 return revision;
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	106 }
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	107
39 4e9b66b07a28 Check changelog group starts with proper (known) base Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 37 diff changeset	108 // Till now, i follow approach that NULL nodeid is never part of revlog
135 3959bffb14e9 explicit op name instead math op to get last rev number Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 115 diff changeset	109 public final boolean isKnown(Nodeid nodeid) {
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	110 final int rn = content.findLocalRevisionNumber(nodeid);
218 047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 200 diff changeset	111 if (BAD_REVISION == rn) {
39 4e9b66b07a28 Check changelog group starts with proper (known) base Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 37 diff changeset	112 return false;
4e9b66b07a28 Check changelog group starts with proper (known) base Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 37 diff changeset	113 }
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	114 if (rn < 0 \|\| rn >= content.revisionCount()) {
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	115 // Sanity check
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	116 throw new IllegalStateException();
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	117 }
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	118 return true;
39 4e9b66b07a28 Check changelog group starts with proper (known) base Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 37 diff changeset	119 }
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	120
37 e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	121 /**
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	122 * Access to revision data as is (decompressed, but otherwise unprocessed, i.e. not parsed for e.g. changeset or manifest entries)
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	123 * @param nodeid
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	124 */
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	125 protected void rawContent(Nodeid nodeid, ByteChannel sink) throws HgException, IOException, CancelledException {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	126 rawContent(getLocalRevision(nodeid), sink);
37 e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	127 }
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	128
37 e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	129 /**
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	130 * @param revision - repo-local index of this file change (not a changelog revision number!)
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	131 */
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	132 protected void rawContent(int revision, ByteChannel sink) throws HgException, IOException, CancelledException {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	133 if (sink == null) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	134 throw new IllegalArgumentException();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	135 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	136 ContentPipe insp = new ContentPipe(sink, 0);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	137 insp.checkCancelled();
37 e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	138 content.iterate(revision, revision, true, insp);
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	139 insp.checkFailed();
37 e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	140 }
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 31 diff changeset	141
56 576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	142 /**
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	143 * XXX perhaps, return value Nodeid[2] and boolean needNodeids is better (and higher level) API for this query?
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	144 *
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	145 * @param revision - revision to query parents, or {@link HgRepository#TIP}
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	146 * @param parentRevisions - int[2] to get local revision numbers of parents (e.g. {6, -1})
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	147 * @param parent1 - byte[20] or null, if parent's nodeid is not needed
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	148 * @param parent2 - byte[20] or null, if second parent's nodeid is not needed
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	149 * @return
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	150 */
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	151 public void parents(int revision, int[] parentRevisions, byte[] parent1, byte[] parent2) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	152 if (revision != TIP && !(revision >= 0 && revision < content.revisionCount())) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	153 throw new IllegalArgumentException(String.valueOf(revision));
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	154 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	155 if (parentRevisions == null \|\| parentRevisions.length < 2) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	156 throw new IllegalArgumentException(String.valueOf(parentRevisions));
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	157 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	158 if (parent1 != null && parent1.length < 20) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	159 throw new IllegalArgumentException(parent1.toString());
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	160 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	161 if (parent2 != null && parent2.length < 20) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	162 throw new IllegalArgumentException(parent2.toString());
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	163 }
77 c677e1593919 Moved RevlogStream implementation into .internal Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 74 diff changeset	164 class ParentCollector implements RevlogStream.Inspector {
56 576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	165 public int p1 = -1;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	166 public int p2 = -1;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	167 public byte[] nodeid;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	168
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	169 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
56 576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	170 p1 = parent1Revision;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	171 p2 = parent2Revision;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	172 this.nodeid = new byte[20];
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	173 // nodeid arg now comes in 32 byte from (as in file format description), however upper 12 bytes are zeros.
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	174 System.arraycopy(nodeid, nodeid.length > 20 ? nodeid.length - 20 : 0, this.nodeid, 0, 20);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	175 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	176 };
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	177 ParentCollector pc = new ParentCollector();
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	178 content.iterate(revision, revision, false, pc);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	179 parentRevisions[0] = pc.p1;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	180 parentRevisions[1] = pc.p2;
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	181 if (parent1 != null) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	182 if (parentRevisions[0] == -1) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	183 Arrays.fill(parent1, 0, 20, (byte) 0);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	184 } else {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	185 content.iterate(parentRevisions[0], parentRevisions[0], false, pc);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	186 System.arraycopy(pc.nodeid, 0, parent1, 0, 20);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	187 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	188 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	189 if (parent2 != null) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	190 if (parentRevisions[1] == -1) {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	191 Arrays.fill(parent2, 0, 20, (byte) 0);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	192 } else {
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	193 content.iterate(parentRevisions[1], parentRevisions[1], false, pc);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	194 System.arraycopy(pc.nodeid, 0, parent2, 0, 20);
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	195 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	196 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	197 }
576d6e8a09f6 Analog of 'hg status --change' command Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 49 diff changeset	198
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	199 /*
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	200 * XXX think over if it's better to do either:
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	201 * pw = getChangelog().new ParentWalker(); pw.init() and pass pw instance around as needed
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	202 * or
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	203 * add Revlog#getParentWalker(), static class, make cons() and #init package-local, and keep SoftReference to allow walker reuse.
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	204 *
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	205 * and yes, walker is not a proper name
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	206 */
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	207 public final class ParentWalker {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	208
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	209
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	210 private Nodeid[] sequential; // natural repository order, childrenOf rely on ordering
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	211 private Nodeid[] sorted; // for binary search
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	212 private int[] sorted2natural;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	213 private Nodeid[] firstParent;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	214 private Nodeid[] secondParent;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	215
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	216 // Nodeid instances shall be shared between all arrays
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	217
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	218 public ParentWalker() {
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	219 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	220
192 e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	221 public HgRepository getRepo() {
e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	222 return Revlog.this.getRepo();
e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	223 }
e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	224
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	225 public void init() {
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	226 final RevlogStream stream = Revlog.this.content;
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	227 final int revisionCount = stream.revisionCount();
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	228 firstParent = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	229 // although branches/merges are less frequent, and most of secondParent would be -1/null, some sort of
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	230 // SparseOrderedList might be handy, provided its inner structures do not overweight simplicity of an array
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	231 secondParent = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	232 //
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	233 sequential = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	234 sorted = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	235
77 c677e1593919 Moved RevlogStream implementation into .internal Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 74 diff changeset	236 RevlogStream.Inspector insp = new RevlogStream.Inspector() {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	237
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	238 int ix = 0;
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	239 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	240 if (ix != revisionNumber) {
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	241 // XXX temp code, just to make sure I understand what's going on here
243 0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	242 // FIXME check against cpython or another tool-mangled repository
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	243 throw new IllegalStateException();
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	244 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	245 if (parent1Revision >= revisionNumber \|\| parent2Revision >= revisionNumber) {
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	246 throw new IllegalStateException(); // sanity, revisions are sequential
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	247 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	248 final Nodeid nid = new Nodeid(nodeid, true);
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	249 sequential[ix] = sorted[ix] = nid;
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	250 if (parent1Revision != -1) {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	251 assert parent1Revision < ix;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	252 firstParent[ix] = sequential[parent1Revision];
183 9807bf8f3a9c Do not assume second parent can be set only when first one is set Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 171 diff changeset	253 }
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	254 if (parent2Revision != -1) { // revlog of DataAccess.java has p2 set when p1 is -1
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	255 assert parent2Revision < ix;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	256 secondParent[ix] = sequential[parent2Revision];
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	257 }
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	258 ix++;
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	259 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	260 };
197 3a7696fb457c Investigate optimization options to allow fast processing of huge repositories. Fix defect in StatusCollector that lead to wrong result comparing first revision to empty repo (-1 to 0), due to same TIP constant value Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 192 diff changeset	261 stream.iterate(0, TIP, false, insp);
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	262 Arrays.sort(sorted);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	263 sorted2natural = new int[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	264 for (int i = 0; i < revisionCount; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	265 Nodeid n = sequential[i];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	266 int x = Arrays.binarySearch(sorted, n);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	267 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	268 sorted2natural[x] = i;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	269 }
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	270 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	271
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	272 private void assertSortedIndex(int x) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	273 if (x < 0) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	274 throw new HgBadStateException();
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	275 }
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	276 }
31 346b66add79d Basic lookup for incoming changes Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 29 diff changeset	277
346b66add79d Basic lookup for incoming changes Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 29 diff changeset	278 // FIXME need to decide whether Nodeid(00 * 20) is always known or not
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	279 // right now Nodeid.NULL is not recognized as known if passed to this method,
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	280 // caller is supposed to make explicit check
31 346b66add79d Basic lookup for incoming changes Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 29 diff changeset	281 public boolean knownNode(Nodeid nid) {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	282 return Arrays.binarySearch(sorted, nid) >= 0;
31 346b66add79d Basic lookup for incoming changes Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 29 diff changeset	283 }
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	284
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	285 /**
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	286 * null if none. only known nodes (as per #knownNode) are accepted as arguments
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	287 */
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	288 public Nodeid firstParent(Nodeid nid) {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	289 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	290 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	291 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	292 return firstParent[i];
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	293 }
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	294
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	295 // never null, Nodeid.NULL if none known
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	296 public Nodeid safeFirstParent(Nodeid nid) {
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	297 Nodeid rv = firstParent(nid);
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	298 return rv == null ? Nodeid.NULL : rv;
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	299 }
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	300
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	301 public Nodeid secondParent(Nodeid nid) {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	302 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	303 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	304 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	305 return secondParent[i];
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	306 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	307
49 26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	308 public Nodeid safeSecondParent(Nodeid nid) {
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	309 Nodeid rv = secondParent(nid);
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	310 return rv == null ? Nodeid.NULL : rv;
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	311 }
26e3eeaa3962 branch and user filtering for log operation Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 39 diff changeset	312
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	313 public boolean appendParentsOf(Nodeid nid, Collection<Nodeid> c) {
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	314 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	315 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	316 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	317 Nodeid p1 = firstParent[i];
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	318 boolean modified = false;
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	319 if (p1 != null) {
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	320 modified = c.add(p1);
191 b777502a06f5 Do not assume second parent can be set only when first one is set, again Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 183 diff changeset	321 }
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	322 Nodeid p2 = secondParent[i];
191 b777502a06f5 Do not assume second parent can be set only when first one is set, again Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 183 diff changeset	323 if (p2 != null) {
b777502a06f5 Do not assume second parent can be set only when first one is set, again Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 183 diff changeset	324 modified = c.add(p2) \|\| modified;
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	325 }
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	326 return modified;
6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	327 }
171 2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	328
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	329 // XXX alternative (and perhaps more reliable) approach would be to make a copy of allNodes and remove
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	330 // nodes, their parents and so on.
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	331
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	332 // @return ordered collection of all children rooted at supplied nodes. Nodes shall not be descendants of each other!
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	333 // Nodeids shall belong to this revlog
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	334 public List<Nodeid> childrenOf(List<Nodeid> roots) {
171 2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	335 HashSet<Nodeid> parents = new HashSet<Nodeid>();
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	336 LinkedList<Nodeid> result = new LinkedList<Nodeid>();
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	337 int earliestRevision = Integer.MAX_VALUE;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	338 assert sequential.length == firstParent.length && firstParent.length == secondParent.length;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	339 // first, find earliest index of roots in question, as there's no sense
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	340 // to check children among nodes prior to branch's root node
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	341 for (Nodeid r : roots) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	342 int x = Arrays.binarySearch(sorted, r);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	343 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	344 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	345 if (i < earliestRevision) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	346 earliestRevision = i;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	347 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	348 parents.add(sequential[i]); // add canonical instance in hope equals() is bit faster when can do a ==
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	349 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	350 for (int i = earliestRevision + 1; i < sequential.length; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	351 if (parents.contains(firstParent[i]) \|\| parents.contains(secondParent[i])) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	352 parents.add(sequential[i]); // to find next child
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	353 result.add(sequential[i]);
171 2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	354 }
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	355 }
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	356 return result;
171 2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 157 diff changeset	357 }
192 e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	358
e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	359 /**
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	360 * @param nid possibly parent node, shall be {@link #knownNode(Nodeid) known} in this revlog.
192 e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	361 * @return <code>true</code> if there's any node in this revlog that has specified node as one of its parents.
e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	362 */
200 114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	363 public boolean hasChildren(Nodeid nid) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	364 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	365 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	366 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	367 assert firstParent.length == secondParent.length; // just in case later I implement sparse array for secondParent
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	368 assert firstParent.length == sequential.length;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	369 // to use == instead of equals, take the same Nodeid instance we used to fill all the arrays.
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	370 final Nodeid canonicalNode = sequential[i];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	371 i++; // no need to check node itself. child nodes may appear in sequential only after revision in question
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	372 for (; i < sequential.length; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	373 // FIXME likely, not very effective.
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	374 // May want to optimize it with another (Tree\|Hash)Set, created on demand on first use,
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	375 // however, need to be careful with memory usage
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	376 if (firstParent[i] == canonicalNode \|\| secondParent[i] == canonicalNode) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	377 return true;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	378 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	379 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 197 diff changeset	380 return false;
192 e5407b5a586a Incoming and Outgoing commands are alive Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 191 diff changeset	381 }
29 6cce719bbb62 Collector for nodes and their parents Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 24 diff changeset	382 }
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	383
243 0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	384 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	385 * Effective int to Nodeid and vice versa translation. It's advised to use this class instead of
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	386 * multiple {@link Revlog#getLocalRevision(Nodeid)} calls.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	387 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	388 * getLocalRevision(Nodeid) with straightforward lookup approach performs O(n/2)
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	389 * #localRevision() is log(n), plus initialization is O(n)
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	390 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	391 public final class RevisionMap {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	392 /*
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	393 * in fact, initialization is much slower as it instantiates Nodeids, while #getLocalRevision
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	394 * compares directly against byte buffer. Measuring cpython with 70k+ gives 3 times difference (47 vs 171)
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	395 * for complete changelog iteration.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	396 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	397
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	398 /*
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	399 * XXX 3 * (x * 4) bytes. Can I do better?
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	400 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	401 private Nodeid[] sequential; // natural repository order, childrenOf rely on ordering
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	402 private Nodeid[] sorted; // for binary search
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	403 private int[] sorted2natural;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	404
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	405 public RevisionMap() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	406 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	407
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	408 public HgRepository getRepo() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	409 return Revlog.this.getRepo();
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	410 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	411
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	412 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	413 * @return <code>this</code> for convenience.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	414 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	415 public RevisionMap init(/XXX Pool<Nodeid> to reuse nodeids, if possible. /) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	416 // XXX HgRepository.register((RepoChangeListener) this); // listen to changes in repo, re-init if needed?
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	417 final int revisionCount = Revlog.this.content.revisionCount();
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	418 sequential = new Nodeid[revisionCount];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	419 sorted = new Nodeid[revisionCount];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	420 sorted2natural = new int[revisionCount];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	421 RevlogStream.Inspector insp = new RevlogStream.Inspector() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	422
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	423 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	424 final Nodeid nid = new Nodeid(nodeid, true);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	425 sequential[revisionNumber] = sorted[revisionNumber] = nid;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	426 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	427 };
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	428 Revlog.this.content.iterate(0, TIP, false, insp);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	429 Arrays.sort(sorted);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	430 for (int i = 0; i < revisionCount; i++) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	431 Nodeid n = sequential[i];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	432 int x = Arrays.binarySearch(sorted, n);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	433 sorted2natural[x] = i;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	434 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	435 return this;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	436 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	437
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	438 public Nodeid revision(int localRevision) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	439 return sequential[localRevision];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	440 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	441 public int localRevision(Nodeid revision) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	442 if (revision == null \|\| NULL.equals(revision)) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	443 return BAD_REVISION;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	444 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	445 int x = Arrays.binarySearch(sorted, revision);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	446 if (x < 0) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	447 return BAD_REVISION;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	448 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	449 return sorted2natural[x];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	450 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	451 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	452
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 218 diff changeset	453
157 d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	454 protected static class ContentPipe implements RevlogStream.Inspector, CancelSupport {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	455 private final ByteChannel sink;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	456 private final CancelSupport cancelSupport;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	457 private Exception failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	458 private final int offset;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	459
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	460 /**
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	461 * @param _sink - cannot be <code>null</code>
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	462 * @param seekOffset - when positive, orders to pipe bytes to the sink starting from specified offset, not from the first byte available in DataAccess
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	463 */
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	464 public ContentPipe(ByteChannel _sink, int seekOffset) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	465 assert _sink != null;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	466 sink = _sink;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	467 cancelSupport = CancelSupport.Factory.get(_sink);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	468 offset = seekOffset;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	469 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	470
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	471 protected void prepare(int revisionNumber, DataAccess da) throws HgException, IOException {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	472 if (offset > 0) { // save few useless reset/rewind operations
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	473 da.seek(offset);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	474 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	475 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	476
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	477 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	478 try {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	479 prepare(revisionNumber, da); // XXX perhaps, prepare shall return DA (sliced, if needed)
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	480 final ProgressSupport progressSupport = ProgressSupport.Factory.get(sink);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	481 ByteBuffer buf = ByteBuffer.allocate(512);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	482 progressSupport.start(da.length());
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	483 while (!da.isEmpty()) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	484 cancelSupport.checkCancelled();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	485 da.readBytes(buf);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	486 buf.flip();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	487 // XXX I may not rely on returned number of bytes but track change in buf position instead.
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	488 int consumed = sink.write(buf);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	489 // FIXME in fact, bad sink implementation (that consumes no bytes) would result in endless loop. Need to account for this
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	490 buf.compact();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	491 progressSupport.worked(consumed);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	492 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	493 progressSupport.done(); // XXX shall specify whether #done() is invoked always or only if completed successfully.
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	494 } catch (IOException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	495 recordFailure(ex);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	496 } catch (CancelledException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	497 recordFailure(ex);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	498 } catch (HgException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	499 recordFailure(ex);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	500 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	501 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	502
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	503 public void checkCancelled() throws CancelledException {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	504 cancelSupport.checkCancelled();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	505 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	506
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	507 protected void recordFailure(Exception ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	508 assert failure == null;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	509 failure = ex;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	510 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	511
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	512 public void checkFailed() throws HgException, IOException, CancelledException {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	513 if (failure == null) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	514 return;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	515 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	516 if (failure instanceof IOException) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	517 throw (IOException) failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	518 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	519 if (failure instanceof CancelledException) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	520 throw (CancelledException) failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	521 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	522 if (failure instanceof HgException) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	523 throw (HgException) failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	524 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	525 throw new HgBadStateException(failure);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	526 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 51 135 diff changeset	527 }
2 08db726a0fb7 Shaping out low-level Hg structures Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	528 }

Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/Revlog.java @ 262:3dcd3dd90c77