NAME

       tdb_open - Open a tdb database.

SYNOPSIS

       #include <tdb.h>

       TDB_CONTEXT *tdb_open(const char *pathname, int hash_size,
               int tdb_flags, int open_flags, mode_t mode );

DESCRIPTION

       Open  the  database,  creating  it if necessary. The hash size is advisory, use zero for a
       default value.  tdb_flags can be one of

       TDB_CLEAR_IF_FIRST
              Clear database if we are the only one with it open.

       TDB_INTERNAL
              Don't use a file, instead store the data in memory. The pathname , open_flags , and
              mode are ignored in this case. This is useful if you need a quick associative array
              or map.

       TDB_NOLOCK
              Don't do any locking (this is always turned on for read-only file descriptors)

       TDB_NOMMAP
              Don't use mmap.

       TDB_CONVERT
              Create a database in the reverse of native endian: normally when  the  database  is
              created (or cleared with TDB_CLEAR_IF_FIRST), it is created in native endian order.
              This flag is set (or unset) automatically for existing databases.

       The open_flags and mode are passed straight to the open call on the database file. A flags
       value of O_WRONLY is invalid.

RETURN VALUE

       On  success  a  pointer to an opaque data structure, a TDB_CONTEXT is returned. On error a
       NULL is returned.

AUTHORS

       Software: Andrew Tridgell <tridge@linuxcare.com> and  Luke  Kenneth  Casson  Leighton  Man
       page: Ben Woodard <ben@valinux.com>

SEE ALSO

       open(2), gdbm(3), tdb(3)