Conversation States

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Conversation States

Statements and Conversation States

The following table summarizes, for each communication command, the states in which the command can be issued and the resulting state after the command is executed.

To issue this command	The dialog must be in this state	After this return code	The dialog is in this state
ALLOCATE	Reset	OK	Send
		Other	Reset
CONFIRM	Send	OK	Send
		PROG-ERROR	Receive
		Other	Deallocate
CONFIRMED	ConfirmR	OK	Receive
		Other	Deallocate
	ConfirmS	OK	Send
		Other	Deallocate
	ConfirmD	Any	Deallocate
CONTROL	Receive	OK	Receive
SESSION		Other	Deallocate
DEALLOCATE
FLUSH	Send	Any	Reset
CONFIRM	Send	OK	Reset
		PROG-ERROR	Receive
		Other	Reset
ABEND	Any	Any	Reset
LOCAL	Deallocate	Any	Reset
PREPARE-TO- RECEIVE	Send	OK or PROG-ERROR	Receive
		Other	Deallocate
RECEIVE-AND-	Send or receive	OK, Data complete	Receive
WAIT		OK, Send	Send
		PROG-ERROR	Receive
		Other	Deallocate
		OK, CONFIRM	ConfirmR
		OK, CONFIRM-SEND	ConfirmS
		OK, CONFIRM-
		DEALLOCATE	ConfirmD
REQUEST-TO-	Receive	OK	Receive
SEND		Other	Deallocate
SEND-DATA	Send	OK	Send
		PROG-ERROR	Receive
		Other	Deallocate
SEND-ERROR	Send or Receive	OK	Send
		PROG-ERROR	Receive
		Other	Deallocate
	ConfirmR	OK	Send
	ConfirmS	PROG-ERROR	N/A
	ConfirmD	Other	Deallocate