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 );

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.

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

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