ciodb

Name

ciovdb, cioddb — Change database input/output mode

Synopsis

subroutine ciovdb(handle,lbuf,lpage,status)
integer*4 handle
integer*4 lbuf
integer*4 lpage
integer*4 status

subroutine cioddb(handle,status)
integer*4 handle
integer*4 status

Description

ciobdb changes the input/output mode of an open MemCom database from direct (unbuffered) mode to buffered mode. The input/output buffer is user-supplied. ciovdb changes the input/output mode of an open MemCom database from direct mode to buffered mode. The input/output buffer is allocated by the system. cioddb changes the input/output mode of an open MemCom database from buffered mode to direct (unbuffered) mode. All MemCom operations resume normally after the call to cioxdb.

Parameters

handle: Database handle (input). The file handle handle may not exceed the maximum number of simultaneously open databases.
lbuf: Buffer length counted in integer*4 words (input). lbuf must be a multiple of lpage.
lpage: Page length counted in integer*4 (input).
status: Status code returned (output). Upon successful completion of the operation, the status value 0 is returned. A negative value is returned, if an error has been detected. A positive value is returned, if a warning has been issued. See MemCom error codes.