Mercurial > hg4j
annotate src/com/tmate/hgkit/ll/RevlogIndexStreamAccess.java @ 22:603806cd2dc6
Status of local working dir against non-tip base revision
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Thu, 06 Jan 2011 03:30:20 +0100 |
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1 /** |
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2 * Copyright (c) 2010 Artem Tikhomirov |
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3 */ |
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4 package com.tmate.hgkit.ll; |
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5 |
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6 import java.io.DataInput; |
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7 import java.io.IOException; |
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8 |
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9 /** |
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10 * @author artem |
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11 * |
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12 */ |
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13 public class RevlogIndexStreamAccess { |
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14 |
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15 private final RevlogStream stream; |
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16 |
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17 // takes RevlogStream. RevlogStream delegates calls for data to this accessor, which in turn refers back to RevlogStream to get |
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18 // correct [Input|Data]Stream according to revlog version (Revlogv0 or RevlogNG) |
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19 |
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20 public RevlogIndexStreamAccess(RevlogStream stream) { |
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21 this.stream = stream; |
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22 // TODO Auto-generated constructor stub |
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23 } |
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24 |
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25 |
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26 void readRevlogV0Record() throws IOException { |
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27 DataInput di = null; //FIXME stream.getIndexStream(); |
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28 int offset = di.readInt(); |
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29 int compressedLen = di.readInt(); |
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30 int baseRevision = di.readInt(); |
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31 int linkRevision = di.readInt(); |
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32 // int r = (((buf[0] & 0xff) << 24) | ((buf[1] & 0xff) << 16) | ((buf[2] & 0xff) << 8) | (buf[3] & 0xff)); |
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33 byte[] buf = new byte[20]; |
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34 di.readFully(buf, 0, 20); |
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35 Object nodeidOwn = buf.clone(); |
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36 // XXX nodeid as an Object with hash/equals? |
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37 di.readFully(buf, 0, 20); |
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38 Object nodeidParent1 = buf.clone(); |
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39 di.readFully(buf, 0, 20); |
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40 Object nodeidParent2 = buf.clone(); |
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41 } |
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42 |
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43 // another subclass? |
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44 void readRevlogNGRecord() throws IOException { |
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45 DataInput di = null; //FIXME stream.getIndexStream(); |
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46 long l = di.readLong(); |
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47 long offset = l >>> 16; |
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48 int flags = (int) (l & 0X0FFFF); |
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49 int compressedLen = di.readInt(); |
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50 int actualLen = di.readInt(); |
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51 int baseRevision = di.readInt(); |
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52 int linkRevision = di.readInt(); |
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53 int parent1Revision = di.readInt(); |
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54 int parent2Revision = di.readInt(); |
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55 byte[] buf = new byte[32]; |
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56 di.readFully(buf, 0, 20+12); |
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57 Object nodeid = buf/*[0..20]*/; |
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58 |
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59 } |
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60 } |