Recently I got this error. But not sure what is happening exactly. Need to
have a thorough look. Please create a Jira.
Supun.
On Sat, Oct 25, 2008 at 12:27 AM, Lefrancois, Carl <
[EMAIL PROTECTED]> wrote:
> Hello all,
>
> No doubt my problem is due to user error, but I'm not sure what to try
> next to fix this problem.
>
> I am working to implement asynchronous mode client calls in a project
> which is already fairly mature and works well in blocking mode. When my
> DLL is loaded, I initialise the Axis2/C environment, and I free the
> environment on unload of the DLL. In between I can make many web
> service calls in blocking mode.
>
> What is happening now is that I used code from the echo_non_blocking.c
> sample to implement asynchronous mode but I get an access violation
> because the env is freed inside the function which calls my on_complete
> callback. After this function is completed my application still tries
> to use the same env.
>
> Can someone point out which function to call so I can make use of the
> asynchronous callbacks and still keep the same environment between
> calls?
>
>
>
>
> here is the code I am using:
> ========================================================================
> =============================
> /* Send request */
> svc_client = axis2_stub_get_svc_client (stub, axis2_env );
> AXIS2_LOG_INFO(axis2_env->log, "\n---appel d'axis2 send receive
> INITIÉ---\n"); ******* I see this in the log
> axis2_svc_client_send_receive_non_blocking(svc_client, axis2_env,
> payload, callback);
> AXIS2_LOG_INFO(axis2_env->log, "\n---appel d'axis2 send receive
> RETOURNÉ---\n");******* I see this in the log
>
> /** Wait till callback is complete. Simply keep the parent thread
> running
> until our on_complete or on_error is invoked */
> while (count < 15)
> {
> if (isComplete)
> {
> /* We are done with the callback */
> break;
> }
> AXIS2_LOG_INFO(axis2_env->log, "\n---AXIS DORT---\n");
> ******* I see this in the log
> AXIS2_SLEEP(1);
> AXIS2_LOG_INFO(axis2_env->log, "\n---AXIS SE RÉVEILLE---\n");
> ******* crash happens here after on_complete.. Axis2_env is freed!
> count++;
> }
>
> if (!(count < 15))
> {
> AXIS2_LOG_INFO(axis2_env->log, "\n---appel d'axis2 send receive
> COMPLÉTÉ TIMEOUT---\n"); **** never see this in log
> *lpiEtatTraitement = ETAT_TRAITEMENT_TIMEOUT;
> }
> else
> {
> AXIS2_LOG_INFO(axis2_env->log, "\n---appel d'axis2 send receive
> COMPLÉTÉ OK---\n"); **** never see this in log
> }
> ========================================================================
> =============================
>
>
> axis2_status_t AXIS2_CALL OnRatingStubOpComplete( struct
> axis2_callback * callback, const axutil_env_t * env)
> {
> AXIS2_LOG_INFO(axis2_env->log,
> "\n---OnRatingStubOpComplete()---\n"); ******* I see this in
> the log
> isComplete = 1;
> return AXIS2_SUCCESS;
> }
>
> ========================================================================
> =============================
>
> ... In the trace execution goes into op_client.c here:
>
> if (args_list->callback)
> {
> axis2_callback_invoke_on_complete(args_list->callback, th_env,
> args_list->op_client->async_result); **** calls my on_complete
> function above
> axis2_callback_set_complete(args_list->callback, th_env,
> AXIS2_TRUE);
> }
>
> /* clean up memory */
> axis2_async_result_free(args_list->op_client->async_result, th_env);
>
> axis2_op_ctx_free(op_ctx, th_env);
>
> th_pool = th_env->thread_pool;
>
> AXIS2_FREE(th_env->allocator, args_list);
>
> if (th_env)
> {
> axutil_free_thread_env(th_env);
> th_env = NULL;
> }
> axutil_thread_pool_exit_thread(th_pool, thd);
> ***** this frees my env! as shown in my log
> return NULL;
> }
>
> ========================================================================
> =============================
>
>
>
>
> So can someone tell me, is axis2_svc_client_send_receive_non_blocking
> the wrong function to use if I want to make many service calls with one
> environment?
>
>
> Carl Lefrançois
> Analyste / Programmeur
> Larochelle Groupe Conseil
>
> Tél. : 514-282-6817, poste 4548
> Couriel : [EMAIL PROTECTED]
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--
Software Engineer, WSO2 Inc
http://wso2.org
