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complete two-node shutdown

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ahrenholz@gmail.com 2009-04-28 18:45:09 +00:00
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wiki/APIExamples.wiki
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@ -1,7 +1,7 @@
#summary example usage of the CORE API
= How to get and read API traces =
From the CORE GUI, choose _View_ -> _Show_ -> _API Messages_. Once this option is turned on, you will see trace output such as the below.
From the CORE GUI, choose _View_ -> _Show_ -> _API Messages_. Once this option is turned on, you will see trace output such as the lines listed below.
== Output ==
Each line of console output starting with a *>* character indicate an outgoing CORE API message that has been sent:
@ -21,7 +21,6 @@ NODE(num=0,emuid=1000,)
http://hipserver.mct.phantomworks.org/core/images/wiki/api_example_two_node.png
Here is the API trace output from the CORE GUI for a two-node wired scenario.
{{{
@ -54,4 +53,7 @@ read 8 bytes (type=1, flags=10, len=8)...
NODE(num=1,)
}}}
# as part of the shutdown sequence, the CORE GUI kills running processes on each node; this is performed by sending cored the first two EXEC messages containing the _killall_ command. Each EXEC message is given a number (101, 102, etc...)
# as part of the shutdown sequence, the CORE GUI kills running processes on each node; this is performed by sending cored the first two EXEC messages containing the _killall_ command. Each EXEC message is given a sequence number (101, 102, etc...) so the response output can be matches.
# the LINK message with flags=2 instructs cored to remove the link between n0 and n1
# the two NODE messages that follow with flags=del instruct cored to shutdown nodes n0 and n1; the str "status request" flag tells cored that the status is requested once the node shutdown completes
# similar to startup, the GUI draws a red square around each node indicating the request to shutdown each node; the last two NODE messages have the str flag set and are the response to the node shutdown request; the red squares are then removed in the GUI