Man page - tdb_chainlock(3)
Packages contains this manual
Manual
TDB_CHAINLOCK
NAMESYNOPSIS
DESCRIPTION
NOTES
RETURN VALUE
AUTHORS
SEE ALSO
NAME
tdb_chainlock - lock a group of keys tdb_chainunlock - unlock a previously locked group of keys
SYNOPSIS
#include <tdb.h>
int
tdb_chainlock(TDB_CONTEXT *
tdb
, TDB_DATA
key
);
void tdb_chainunlock(TDB_CONTEXT *
tdb
,
TDB_DATA
key
);
DESCRIPTION
tdb_chainlock is a low-level function used to lock a particular key (and a number of other keys) without any checking: any other process attempting to perform tdb operations on those keys will block until tdb_chainunlock is called.
NOTES
It is the user’s responsibility to ensure that they do not deadlock the database using these functions: something which is impossible using the other access functions.
RETURN VALUE
A return value of 0 indicates success and -1 indicates failure.
AUTHORS
Software: Andrew Tridgell <tridge@linuxcare.com> Man page: Rusty.
SEE ALSO
gdbm (3), tdb (3), tdb_lockall (3).