TDB_CHAINLOCK(3) - man page online | library functions
Lock a group of keys tdb_chainunlock - unlock a previously locked group of keys.
Oct 13, 2000
TDB_CHAINLOCK(3) Linux Programmer's Manual TDB_CHAINLOCK(3)
NAMEtdb_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);
DESCRIPTIONtdb_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.
NOTESIt 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 VALUEA return value of 0 indicates success and -1 indicates failure.
AUTHORSSoftware: Andrew Tridgell <@linuxcare.com> Man page: Rusty.
Samba Oct 13, 2000 TDB_CHAINLOCK(3)
SEE ALSOgdbm(3), tdb(3), tdb_lockall(3).
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|refer to||gdbm(3) | tdb(3)|