Int 31H Function 0D02H

Serialize on Shared Memory [1.0]

Requests serialization of a shared memory block. Successful serialization symbolizes ownership or right of access to a block, and can be used by DPMI clients to synchronize the inspection or modification of a shared memory block.

Call With

AX = 0D02H
SI:DI = shared memory block handle
DX = option flags

00 = suspend client until serialization available
1 = return immediately with error if serialization not available
10 = exclusive serialization requested
1 = shared serialization requested
2-15reserved, must be zero

if function successful
Carry flag = clear

if function unsuccessful
Carry flag = set
AX = error code
8004Hdeadlock (host detected a deadlock situation)
8005Hrequest cancelled with Int 31H Function 0D03H
8017Hlock count exceeded
8018Hexclusive serialization already owned by another client
8019Hshared serialization already owned by another client
8023Hinvalid handle


  prev next   webmaster     delorie software   privacy  
  Copyright © 1996     Updated Apr 1996