&space
RMr functions do provide for the ability to respond to the specific source
instance of a message allowing for either a request response, or call
-response relationship when needed.
+response relationship when needed.
&h3(The Route Table)
&h3(Environment)
To enable configuration of the library behaviour outside of direct user application
control, RMr supports a number of environment variables which provide information
-to the library.
+to the library.
The following is a list of the various environment variables, what they control
and the defaults which RMr uses if undefined.
-&beg_dlist(.75i : ^&bold_font )
-&di(RMR_ASYNC_CONN) Allows the asynch connection mode to be turned off (by setting the
- value to 0. When set to 1, or missing from the environment, RMR will invoke the
- connection interface in the transport mechanism using the non-blocking (asynch)
- mode. This will likely result in many "soft failures" (retry) until the connection
- is established, but allows the application to continue unimpeeded should the
- connection be slow to set up.
-
-&di(RMR_BIND_IF) This provides the interface that RMr will bind listen ports to allowing
- for a single interface to be used rather than listening across all interfaces.
- This should be the IP address assigned to the interface that RMr should listen
- on, and if not defined RMr will listen on all interfaces.
-
-&di(RMR_RTG_SVC) RMr opens a TCP listen socket using the port defined by this
- environment variable and expects that the route table generator process
- will connect to this port.
- If not supplied the port 4561 is used.
-
-&di(RMR_RTG_ISRAW) Is set to 1 if the route table generator is sending "plain" messages
- (not using RMr to send messages, 0 if the rtg is using RMr to send. The default
- is 1 as we don't expect the rtg to use RMr.
-
-&di(RMR_SEED_RT) This is used to supply a static route table which can be used for
- debugging, testing, or if no route table generator process is being used to
- supply the route table.
- If not defined, no static table is used and RMr will not report &ital(ready)
- until a table is received.
-&end_dlist
+.** the list of environment vars supported
+.im &{lib}/man/env_var_list.im
&h2(SEE ALSO )
rmr_has_str(3),
rmr_tokenise(3),
rmr_mk_ring(3),
+rmr_realloc_payload(3),
rmr_ring_free(3),
rmr_set_trace(3),
rmr_torcv_msg(3),
.ju on
-.qu