Poster of Linux kernelThe best gift for a Linux geek
TDB_CHAINLOCK

TDB_CHAINLOCK

Section: Linux Programmer's Manual (3) Updated: Oct 13, 2000
Local index Up
 

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).


 

Index

NAME
SYNOPSIS
DESCRIPTION
NOTES
RETURN VALUE
AUTHORS
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 21:57:06 GMT, April 16, 2011