*LOCKIO (SETMODE)

PLBCMP Only

*LOCKIO={ON | OFF}

This control is now obsolete.

This control causes the runtime to issue lock requests for each read/write I/O operation. The need for this type of lock request was to work around a problem in Microsoft's Network Redirector for Windows 95. The Redirector was causing data corruption when multiple Windows 95 workstations were accessing the same files. Please note that Microsoft's Network Redirector was modified to correct this data corruption problem such that the need for the Sunbelt I/O lock requirements should no longer be needed. The ability to turn the I/O lock requests are only being made available in cases where Microsoft's Network Redirector correction is not being used. The Microsoft solution for the data corruption was documented as problem Q148367 and was made available 24 Sept 1997. This same ability to force lock requests can be obtained by using the PLB_LOCKIO runtime keyword. The default is mode is OFF.

See Also: List Controls (SETMODE), SETMODE