Exit Routine Environment

z/OS MVS Programming: Workload Management Services

Exit Routine Environment

z/OS MVS Programming: Workload Management Services
SC34-2663-00

The queueing manager connect exit routine receives control in the following environment:


Authorization:	Supervisor state and PSW key 0
Dispatchable unit mode:	Task
Cross-memory mode:	Any PASN, any HASN, any SASN
AMODE:	31-bit
ASC mode:	Primary
Interrupt status:	Enabled for I/O and external interrupts
Locks:	No locks held
Serialization	None
Location	The connect exit must be a resident routine callable from any address space and must remain available after the queueing manager disconnects or terminates. Input parameter list is in the primary address space. The input parameter list is in pageable storage addressable in the primary address space, but should not be changed by the exit.
Exit Recovery	The system may discontinue calling the exit upon repetitive, abnormal completions, that is, where an error within the exit percolates to the system recovery routine. The exit may optionally establish a functional recovery routine (FRR) or ESTAEX for any needed recovery or cleanup of its resources.