Purpose

This function changes the size of a segment previously allocated with FSH_SEGALLOC or loaded as part of the FSD image.

Calling Sequence

int far pascal FSH_SEGREALLOC(sel, cbSeg)
 
unsigned short sel;
unsigned long cbSeg;

Where

sel is the selector to be changed.

cbSeg is the new size to set for the segment.

Returns

If no error is detected, a zero error code is returned. If an error is detected, one of the following error codes is returned:

• ERROR_NOT_ENOUGH_MEMORY – too much memory is allocated.
• ERROR_INVALID_ACCESS – the selector is invalid

Remarks

The segment may be grown or shrunk. The segment may be moved in the process. When grown, the extra space is uninitialized.

FSH_SEGREALLOC may block.

Note: OS/2 does not validate input parameters. An FSD, therefore, should call FSH_PROBEBUF where appropriate.