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Posted to dev@commons.apache.org by bu...@apache.org on 2006/04/27 21:00:02 UTC
DO NOT REPLY [Bug 39434] New: - Thread-safety in Executor
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http://issues.apache.org/bugzilla/show_bug.cgi?id=39434
Summary: Thread-safety in Executor
Product: Commons
Version: 1.0 Alpha
Platform: All
OS/Version: All
Status: NEW
Severity: critical
Priority: P1
Component: SCXML
AssignedTo: commons-dev@jakarta.apache.org
ReportedBy: fasihullah.askiri@gmail.com
Hi
I am trying to send an event "connection.connected" to the state-machine which
is in a parallel state. Look at the logs (Removed unnecessary statements), note
the thread name at the beginning and the final transitions.
[CALLBACK.4] Current States: [wait-for-orig-connect, wait-for-ivr-connect]
[CALLBACK.4] Firing
{name=connection.connected,type=3,payload=com.baypackets.simulator.sipconnector.SIPEndPoint:
orig-line[100]}
[CALLBACK.5] Firing
{name=connection.connected,type=3,payload=com.baypackets.simulator.sipconnector.IVREndPoint:
ivr-line[msml]}
[CALLBACK.4] transition (event = connection.connected, cond = _eventdata.ID eq
'ivr-line', from =
/setup-call/create-call/ivr-interaction/ivr-leg/wait-for-ivr-connect, to =
/setup-call/create-call/ivr-interaction/ivr-leg/ivr-connected)
[CALLBACK.4] Current States: [wait-for-orig-connect, ivr-connected]
[CALLBACK.5] Current States: [wait-for-orig-connect, wait-for-ivr-connect]
[DATAI.0] Current States: [wait-for-orig-connect, wait-for-ivr-connect]
Three problems:
1. The last three lines above: the change that CALLBACK.4 did is overridden by
CALLBACK.5.
2. Callback 4 has a payload of type:orig-line,
[CALLBACK.4] Firing
{name=connection.connected,type=3,payload=com.baypackets.simulator.sipconnector.SIPEndPoint:
orig-line[100]}
But
[CALLBACK.4] transition (event = connection.connected, cond = _eventdata.ID eq
'ivr-line', from =
/setup-call/create-call/ivr-interaction/ivr-leg/wait-for-ivr-connect, to =
/setup-call/create-call/ivr-interaction/ivr-leg/ivr-connected)
it thinks that it has an 'ivr-line'???
3. Where did the orig line disappear??
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DO NOT REPLY [Bug 39434] - [scxml] Thread-safety in Executor
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
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http://issues.apache.org/bugzilla/show_bug.cgi?id=39434
rahul@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
Status|NEW |RESOLVED
Priority|P1 |P3
Resolution| |LATER
Summary|Thread-safety in Executor |[scxml] Thread-safety in
| |Executor
------- Additional Comments From rahul@apache.org 2006-04-27 21:28 -------
This is documented in the FAQ, and is currently not high priority (on my
list), since there are one or two methods that do most of the work for the
executor and they can be synchronized externally without much effort.
http://jakarta.apache.org/commons/scxml/faq.html (see in SCXMLExecutor section)
However, it is an authoring convenience so this will likely be looked into
after the first release, hence marking as LATER. If you want, feel free to
attach a test case that we can work with when we look at this, since you
probably have one already. Thanks.
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