File	40
Statement	FIND or PROCESS, depending on value in FUNCTION field.
Task	Allows communication between Natural programs or Natural applications. This DDM enables Natural programs to send data to and receive data from other Natural programs.

---

Relevant Error Codes

Code	Text
600	Unknown function.
745	Error occurred when executing Eventing
809	Subsystem not active.
886	Event is in use.
887	Event is already defined.
888	Event name must be specified.
890	Event does not exist.
891	Timeout waiting for event.
894	Enable eventing failed.
986	No or not enough space for EVENTING MEMORY POOL

Field Descriptions

Dictionary Field Name	Format/ Length/ Desc/ Mu	Description
EVENT-NAME	(A8)	Name of the event.
	D
FUNCTION	(A8)	Required. Specifies the action to be performed. Possible values:
	D	DEFINE Define an event
		DELETE Delete an event
		LIST List events
		POST Post event
		RECEIVE Receive messages from event
		SEND Send message to event
		SENDPOST Both SEND and POST
		WAIT Wait for post of event (or timeout)
MAX-TIME	(B4)	Maximum time (in seconds) you want to wait for a message to arrive. If no message arrives within this time you will get ERROR-CODE 891 (timeout).
	D
MESSAGE-ARRAY	(A250)	Array of maximum 7 messages for SEND/RECEIVE functions.
	D
	M/7
NUMBER-OF-MESSAGES	(N5)	Number of messages waiting to be received.
NUMBER-OF-WAITERS	(N5)	Number of tasks waiting to be posted.

Which fields are relevant with which statement depends on the FUNCTION specified. Matrix of statements, fields and functions: Key: R=Required, U=Unique, D=Descriptor

PROCESS Statement	Functions
Fields	DEFINE	DELETE	SEND	WAIT	POST
EVENT-NAME	RUD	RUD	RUD	RUD	RUD
MAX-TIME				UD
MESSAGE-ARRAY			RUD

FIND Statement	Functions
Fields	RECEIVE	LIST
EVENT-NAME	RUD	D
NUMBER-OF-WAITERS		D
MESSAGE-ARRAY	D
NUMBER-OF-MESSAGES		D