[Quickfix-developers] How to stop a session?

[Danis T. <td...@ho...>]

Folks,

I am experimenting with QuickFix using Java interfcace, and I have a couple
of questions. I have created a CLIENT (initiator) and a SERVER (acceptor)
which run on different JVM. A structure of both programs is idential
excluding that the CLIENT uses Initiator class and the SERVER uses Acceptor
class. Initially both of them create initiator or acceptor objects and start
them. The object that implements Application interface is a simple logger
with an inifinite loop in onRun(). Acceptor.start() method is blocked until
onRun() is running. That's why the SERVER listens infinitely.

I intend to send messages being outside from onRun() method of clients. To
make this possible I start a simple thread that starts  initiator. Something
like this:

(new Thread() {
    public void run() {
        initiator.statr();
    }
}).start();

where initiator is an instance of Initiator class.

After that the CLIENT goes to sleep for awhile (10 secodns). The SERVER and
the CLIENT successfully establish a session and wait. When the CLIENT wakes
up it just tries to stop the "started" initiator. The call to
Initiator.stop() method doesn't return and the session doesn't finish.
Instead onRun() is called again. And when the time of Heartbeat message
comes up LOGON procedure is initiated.

See the log (FIX 4.1):



[22:15,511]: CLIENT: ON_CREATE
[22:15,521]: CLIENT: ON_RUN
[22:25,516]: CLIENT: ON_RUN    <-- !!! trying to stop()
[22:26,478]: CLIENT: TO_ADMIN:   ...35=A
34=1
...
[22:26,528]: CLIENT: FROM_ADMIN: ...35=A
34=1...
[22:26,528]: CLIENT: ON_LOGOUT
[22:56,572]: CLIENT: TO_ADMIN:   ...35=0
34=2...
[23:26,616]: CLIENT: TO_ADMIN:   ...35=1
34=3...
[23:56,740]: CLIENT: TO_ADMIN:   ...35=1
34=4...
[24:26,814]: CLIENT: TO_ADMIN:   ...35=1
34=5...
[24:56,858]: CLIENT: ON_LOGOUT
[25:02,857]: CLIENT: TO_ADMIN:   ...35=A
34=6...    <--- Again
[25:02,867]: CLIENT: FROM_ADMIN: ...35=A
34=2...
[25:02,867]: CLIENT: ON_LOGON
[25:02,877]: CLIENT: FROM_ADMIN: ...35=2
34=3...
[25:02,877]: CLIENT: TO_ADMIN:   ...35=4
34=2...
[25:32,911]: CLIENT: TO_ADMIN:   ...35=0
34=7...
[25:32,911]: CLIENT: FROM_ADMIN: ...35=2
34=4...
[25:32,911]: CLIENT: TO_ADMIN:   ...35=4
34=6...
[26:02,034]: CLIENT: FROM_ADMIN: ...35=0
34=5...
[26:02,044]: CLIENT: ON_LOGOUT

An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x8a1ee0a
Function name=(N/A)
Library=(N/A)

Current Java thread:
        at org.quickfix.SocketInitiator.doStart(Native Method)
        at org.quickfix.SocketInitiator.start(Unknown Source)
        at rawclient.Client$1.run(Client.java:37)
        at java.lang.Thread.run(Unknown Source)



Is it allowed to use QuickFix this way? Where am I wrong? I don't know where
to dig. Thanks.

Danis Tazeev