OSI/AS Programming Manual

MFM_AWAITIOX_

Module File Management (MFM) Procedure Calls

C–4 056783 Tandem Computers Incorporated

Perform error checking as follows:

1. Immediately after the call to MFM_AWAITIOX_ , check the

filenum

returned.

2. If

filenum

is a CEPI (a value in the range -10 through -32767), then check the

status

returned by MFM_AWAITIOX_.

filenum

is not a CEPI, check the condition code and/or call FILEINFO

with the

filenum

returned by MFM_AWAITIOX_.

For a file-system completion, the condition code is identical to that set by

AWAITIOX. For an APS completion, the condition code has no meaning.

To get APS_STATUS_ information from an APS procedure call in nowait mode,

you must call APS_STATUS_ immediately after the call to MFM_AWAITIOX_.

Between the procedure call and the call to APS_STATUS_ , you can perform error

checking, but you cannot call any other APS procedure to invoke a primitive or

receive an event. APS_STATUS_ provides information only on the most recently

completed primitive or the most recently received event; information on earlier

primitives and events is not queued.