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authorMike Hearn <hearn@google.com>2012-06-25 11:17:22 +0200
committerPieter Wuille <pieter.wuille@gmail.com>2012-10-20 23:08:56 +0200
commit5e650d6d2dbfc284c300668e71188e663d8f0a45 (patch)
treebef5ac4e7bfa9845b23ea975be58fa3fe108ef4b /src/leveldb/db/log_format.h
parent38ac953b9df1f7a884c1ef0e94301e14c4e7477d (diff)
Import LevelDB 1.5, it will be used for the transaction database.
Diffstat (limited to 'src/leveldb/db/log_format.h')
-rw-r--r--src/leveldb/db/log_format.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/leveldb/db/log_format.h b/src/leveldb/db/log_format.h
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+++ b/src/leveldb/db/log_format.h
@@ -0,0 +1,35 @@
+// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+//
+// Log format information shared by reader and writer.
+// See ../doc/log_format.txt for more detail.
+
+#ifndef STORAGE_LEVELDB_DB_LOG_FORMAT_H_
+#define STORAGE_LEVELDB_DB_LOG_FORMAT_H_
+
+namespace leveldb {
+namespace log {
+
+enum RecordType {
+ // Zero is reserved for preallocated files
+ kZeroType = 0,
+
+ kFullType = 1,
+
+ // For fragments
+ kFirstType = 2,
+ kMiddleType = 3,
+ kLastType = 4
+};
+static const int kMaxRecordType = kLastType;
+
+static const int kBlockSize = 32768;
+
+// Header is checksum (4 bytes), type (1 byte), length (2 bytes).
+static const int kHeaderSize = 4 + 1 + 2;
+
+} // namespace log
+} // namespace leveldb
+
+#endif // STORAGE_LEVELDB_DB_LOG_FORMAT_H_