BAP Online Manuals : Library Reference : Library by Name : rec_msg
Previous: readln
Next:

---

6.2.105. rec_msg

waits for a message to arrive and retracts it from the mail box

SYNOPSIS

INCLUDE 'msglib.h'
rec_msg(SenderID,done)

SYNTAX

rec_msg(SenderID,Term) (i)

ARGUMENTS

server(ServerID) (x) ID of the message sender
char(Term) (x) content of message

DESCRIPTION

Receives messages from other process. Rec_msg() suspends until a message that matches the arguments has arrived. It then returns this message. Upon backtracking it fails.

EXAMPLE

get_my_id(MyID),
exec(Server,( something(Results), send_msg(MyID,Results))),
something_else,
rec_msg(Server,Answer).

ERRORS

No runtime errors.

LAYERS

prolog-process, client-server, object

RELATED PREDICATES

send_msg , query_msg

---

BAP Online Manuals : Library Reference : Library by Name : rec_msg
Previous: readln
Next: