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Merge src/leveldb changes for LevelDB 1.18.

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This commit is contained in:
Pieter Wuille
2014-10-16 12:23:50 -07:00
parent e8f6d54f1f 4b0e2d75d7
commit 5b9f8425a5
40 changed files with 602 additions and 282 deletions
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6
src/leveldb/doc/log_format.txt
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@@ -11,7 +11,7 @@ Each block consists of a sequence of records:
A record never starts within the last six bytes of a block (since it
won't fit). Any leftover bytes here form the trailer, which must
consist entirely of zero bytes and must be skipped by readers.
consist entirely of zero bytes and must be skipped by readers.
Aside: if exactly seven bytes are left in the current block, and a new
non-zero length record is added, the writer must emit a FIRST record
@@ -33,8 +33,8 @@ The FULL record contains the contents of an entire user record.
FIRST, MIDDLE, LAST are types used for user records that have been
split into multiple fragments (typically because of block boundaries).
FIRST is the type of the first fragment of a user record, LAST is the
type of the last fragment of a user record, and MID is the type of all
interior fragments of a user record.
type of the last fragment of a user record, and MIDDLE is the type of
all interior fragments of a user record.
Example: consider a sequence of user records:
A: length 1000