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comparison src/org/tmatesoft/hg/internal/DataAccessProvider.java @ 584:ed243b668502

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Conditionally enable effective patch merge alternative for revlog reading
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 25 Apr 2013 16:08:17 +0200
parents dd4f6311af52
children 5daa42067e7c
comparison
equal deleted inserted replaced
583:47dfa0ec7e35 584:ed243b668502
1 /* 1 /*
2 * Copyright (c) 2010-2012 TMate Software Ltd 2 * Copyright (c) 2010-2013 TMate Software Ltd
3 * 3 *
4 * This program is free software; you can redistribute it and/or modify 4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by 5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License. 6 * the Free Software Foundation; version 2 of the License.
7 * 7 *
52 private static final int DEFAULT_MAPIO_BUFFER = DEFAULT_MAPIO_LIMIT; // same as default boundary 52 private static final int DEFAULT_MAPIO_BUFFER = DEFAULT_MAPIO_LIMIT; // same as default boundary
53 53
54 private final int mapioMagicBoundary; 54 private final int mapioMagicBoundary;
55 private final int bufferSize, mapioBufSize; 55 private final int bufferSize, mapioBufSize;
56 private final SessionContext context; 56 private final SessionContext context;
57 57 // not the right place for the property, but DAP is the only place currently available to RevlogStream to get the value
58 private final boolean shallMergePatches;
59
58 public DataAccessProvider(SessionContext ctx) { 60 public DataAccessProvider(SessionContext ctx) {
59 context = ctx; 61 context = ctx;
60 PropertyMarshal pm = new PropertyMarshal(ctx); 62 PropertyMarshal pm = new PropertyMarshal(ctx);
61 mapioMagicBoundary = mapioBoundaryValue(pm.getInt(CFG_PROPERTY_MAPIO_LIMIT, DEFAULT_MAPIO_LIMIT)); 63 mapioMagicBoundary = mapioBoundaryValue(pm.getInt(CFG_PROPERTY_MAPIO_LIMIT, DEFAULT_MAPIO_LIMIT));
62 bufferSize = pm.getInt(CFG_PROPERTY_FILE_BUFFER_SIZE, DEFAULT_FILE_BUFFER); 64 bufferSize = pm.getInt(CFG_PROPERTY_FILE_BUFFER_SIZE, DEFAULT_FILE_BUFFER);
63 mapioBufSize = pm.getInt(CFG_PROPERTY_MAPIO_BUFFER_SIZE, DEFAULT_MAPIO_BUFFER); 65 mapioBufSize = pm.getInt(CFG_PROPERTY_MAPIO_BUFFER_SIZE, DEFAULT_MAPIO_BUFFER);
66 shallMergePatches = pm.getBoolean(Internals.CFG_PROPERTY_PATCH_MERGE, false);
64 } 67 }
65 68
66 public DataAccessProvider(SessionContext ctx, int mapioBoundary, int regularBufferSize, int mapioBufferSize) { 69 public DataAccessProvider(SessionContext ctx, int mapioBoundary, int regularBufferSize, int mapioBufferSize) {
67 context = ctx; 70 context = ctx;
68 mapioMagicBoundary = mapioBoundaryValue(mapioBoundary); 71 mapioMagicBoundary = mapioBoundaryValue(mapioBoundary);
69 bufferSize = regularBufferSize; 72 bufferSize = regularBufferSize;
70 mapioBufSize = mapioBufferSize; 73 mapioBufSize = mapioBufferSize;
74 shallMergePatches = new PropertyMarshal(ctx).getBoolean(Internals.CFG_PROPERTY_PATCH_MERGE, false);
75 }
76
77 // TODO [post-1.1] find a better place for this option, it's unrelated to the DAP
78 public boolean shallMergePatches() {
79 return shallMergePatches;
71 } 80 }
72 81
73 // ensure contract of CFG_PROPERTY_MAPIO_LIMIT, for mapioBoundary == 0 use MAX_VALUE so that no file is memmap-ed 82 // ensure contract of CFG_PROPERTY_MAPIO_LIMIT, for mapioBoundary == 0 use MAX_VALUE so that no file is memmap-ed
74 private static int mapioBoundaryValue(int mapioBoundary) { 83 private static int mapioBoundaryValue(int mapioBoundary) {
75 return mapioBoundary == 0 ? Integer.MAX_VALUE : mapioBoundary; 84 return mapioBoundary == 0 ? Integer.MAX_VALUE : mapioBoundary;