SIMPLE SOLUTIONS

TDB_CHAINLOCK(3) - man page online | library functions

Lock a group of keys tdb_chainunlock - unlock a previously locked group of keys.

Chapter
Oct 13, 2000
TDB_CHAINLOCK(3)                    Linux Programmer's Manual                    TDB_CHAINLOCK(3)

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 <@linuxcare.com> Man page: Rusty.

SEE ALSO

gdbm(3), tdb(3), tdb_lockall(3).
Samba Oct 13, 2000 TDB_CHAINLOCK(3)
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tdb_chainlock(3) referred by tdb(3)
refer to gdbm(3) | tdb(3)