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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