[AGENT++] max threads ?

[Frank Fock]

Hi Enzo,

The code pice you quoted below ist not from the example agents.
Are you sure that "cout" works in a multi-threaded environment?
Have you recompiled *everything* after having changed any
#defines? Otherwise, the logging should work.
Do the example agents crash when you send concurrent request
to them?

Best regards,
Frank

Enzo Vigano wrote:

>Thank you for the response,
>the problem still remains.I've removed all calls to my code in the file
>generated by AgentPro and now it's the same as the original one, but the
>Agent crashes at the same way.
>
>My loop is:
>
>for (;;) {                // loop forever
>        // wait for incoming request max 120 sec
>        // and then just loop once
>      cout<<"Enter RECEIVE"<<endl;
>      req = req_list_->receive(120);
>      cout<<"Exit RECEIVE"<<endl;
>
>        if (req) {
>            cout<<"Enter PREOCESS REQ"<<endl;
>            mib_->process_request(req); // process the request
>            cout<<"Exit PROCESS REQ"<<endl;
>        }
>  }
>
>
>Can you tell me what I have to do to enable agent++ LOGGING?
>I've //#define _NO_LOGGING  in agent++.h.
>and I have
>	DefaultLog::log()->set_filter(ERROR_LOG, 15);
>	DefaultLog::log()->set_filter(WARNING_LOG, 15);
>	DefaultLog::log()->set_filter(EVENT_LOG, 15);
>	DefaultLog::log()->set_filter(INFO_LOG, 15);
>	DefaultLog::log()->set_filter(DEBUG_LOG, 15);
>but nothing appears.
>
>Thank you in advance.
>Ciao.
>
>
>
>
>
>-----Original Message-----
>From: agentpp-admin at agentpp.org [mailto:agentpp-admin at agentpp.org]On
>Behalf Of Frank Fock
>Sent: mercoledi 12 novembre 2003 20.03
>To: enzo.vigano at thalesatm.com
>Cc: agentpp at agentpp.org
>Subject: Re: [AGENT++] max threads ?
>
>
>Hi Enzo,
>
>By default, AGENT++ uses a thread pool of four threads. Thus,
>four requests can be simutaneously processed. A fifth request
>would be wait until the first of the four has been finished.
>In fact the upper limit of concurrent requests is only defined by
>the size of your UDP buffer.
>
>When your agent crashes because of concurrent requests, then
>you probably have a synchronization weekness in your instrumentation
>code. Although AGENT++ does most of the locking for you, you
>need to be careful when implementing code that accesses other
>MIB objects in agent other than that from which your instrumentation
>code has been called.
>
>Hope this helps.
>
>Best regards,
>Frank
>
>Enzo Vigano wrote:
>
>  
>
>>Hi everybody,
>>I'm using an agent based on AGENT++v3.5 on linux Rh9 and it crashes when it
>>process at the same time more than one get request (sent by westhawk 4.13
>>stack ).
>>It has been built as multi-threaded agent. With single get request all ok.
>>Any idea or does anybody know if there is a max threads requests that can
>>    
>>
>be
>  
>
>>processed simultaneously?
>>Thank you .
>>Ciao.
>>
>>
>>
>>
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>>
>>
>>
>>    
>>
>
>
>
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