Mercurial > hg4j
comparison src/org/tmatesoft/hg/repo/HgBundle.java @ 606:5daa42067e7c
Avoid mmap files when only few bytes are to be read
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Tue, 07 May 2013 14:16:35 +0200 |
parents | 243202f1bda5 |
children | 6526d8adbc0f |
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605:c56edf42be64 | 606:5daa42067e7c |
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58 accessProvider = dap; | 58 accessProvider = dap; |
59 bundleFile = bundle; | 59 bundleFile = bundle; |
60 } | 60 } |
61 | 61 |
62 private DataAccess getDataStream() throws IOException { | 62 private DataAccess getDataStream() throws IOException { |
63 DataAccess da = accessProvider.createReader(bundleFile); | 63 DataAccess da = accessProvider.createReader(bundleFile, false); |
64 byte[] signature = new byte[6]; | 64 byte[] signature = new byte[6]; |
65 if (da.length() > 6) { | 65 if (da.length() > 6) { |
66 da.readBytes(signature, 0, 6); | 66 da.readBytes(signature, 0, 6); |
67 if (signature[0] == 'H' && signature[1] == 'G' && signature[2] == '1' && signature[3] == '0') { | 67 if (signature[0] == 'H' && signature[1] == 'G' && signature[2] == '1' && signature[3] == '0') { |
68 if (signature[4] == 'G' && signature[5] == 'Z') { | 68 if (signature[4] == 'G' && signature[5] == 'Z') { |