4 Closing the database

It is important that every file opened is also closed. This is needed to properly update its disk structure and maintain a consistent locking state on the file.

gdbm interface: int gdbm_close (GDBM_FILE dbf)

This function closes the GDBM file and frees all memory associated with it. The parameter is:

dbf

The pointer returned by gdbm_open.

Gdbm_close returns 0 on success. On error, it sets gdbm_errno and system errno variables to the codes describing the error and returns -1.