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Merge two "wal" leaves.

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FossilOrigin-Name: 8c2d43babd61fe2225d5c402174253f412604092
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dan
2010-04-27 18:49:54 +00:00
parent 8b348af860 af75c8695b
commit 4b64c1e365
12 changed files with 38 additions and 85 deletions
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3
src/wal.c
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@@ -4,6 +4,7 @@
** "journal_mode=wal" mode.
*/
/*
** LOG FILE FORMAT
**
@@ -157,7 +158,7 @@ struct LogSummary {
** obtains the DMH lock (see below), and while log recovery is
** being run.
**
** DMH: The DMH (Dead Mans Hand mechanism) lock is used to ensure
** DMS: The DMS (Dead Mans Switch mechanism) lock is used to ensure
** that log-recovery is always run following a system restart.
** When it first opens a log-summary file, a process takes a
** SHARED lock on the DMH region. This lock is not released until