Hi colleagues,
-1-
I tried to reuse client but determined that multiple invocations followed with
memory leaks(about 300k per call) and unclosed sockets.
You can see this on the following test:
1) run axis_http_server.exe
2) run echooo.exe (source echooo.c is applyed)
3) watch out for sockets state before and after sending echo(there will be
sockets in CLOSE_WAIT and FIN_WAIT_2 states)
4) watch out for memory usage on client and server sides
-2-
I explored process of socket shutdown in network_handler.c and determind that
axis2_network_handler_close_socket function returns only after 2 minutes
You can see this on the following test:
1) modify axis2_network_handler_close_socket function in
network_handler.c as shown below:
---
AXIS2_EXTERN axis2_status_t AXIS2_CALL
axis2_network_handler_close_socket (const axis2_env_t *env, axis2_socket_t
socket)
{
int i = 0;
char buf[32];
AXIS2_ENV_CHECK(env, AXIS2_CRTICAL_FAILURE);
if(socket < 0)
{
AXIS2_ERROR_SET(env->error, AXIS2_ERROR_INVALID_SOCKET,
AXIS2_FAILURE);
return AXIS2_FAILURE;
}
shutdown(socket, AXIS2_SHUT_WR);
axis2_network_handler_set_sock_option(env, socket, SO_RCVTIMEO, 1);
AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI,
"\n[axis2_network_handler_close_socket, before recv, i=%ld]", i);
i = recv(socket, buf, 32, 0);
AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI,
"\n[axis2_network_handler_close_socket, after recv, i=%ld]", i);
AXIS2_CLOSE_SOCKET(socket);
return AXIS2_SUCCESS;
}
---
2) recompile ( make axis2_util ) and copy axis2_util.dll to Axis2 libdir
3) run axis_http_server.exe with loglevel 4
4) run echooo.exe (source echooo.c is applyed) and wait more then 2 minutes
before exit
5) watch over axis2.log
-3-
Is it possible to reuse svc_client, or it's neccessary to recreate ones?
I tryed to invoke service twice in echo.c:
ret_node1 = AXIS2_SVC_CLIENT_SEND_RECEIVE(svc_client, env, payload);
ret_node2 = AXIS2_SVC_CLIENT_SEND_RECEIVE(svc_client, env, payload);
but client crashes in this case.
I think, it will be very useful to provide an example with multiple service
invocation.
Thanks,
Evgeniy
/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <axiom.h>
#include <axis2_util.h>
#include <axiom_soap.h>
#include <axis2_client.h>
axiom_node_t *
build_om_payload_for_echo_svc(const axis2_env_t *env);
int main(int argc, char** argv)
{
do
{{
const axis2_env_t *env = NULL;
const axis2_char_t *address = NULL;
axis2_endpoint_ref_t* endpoint_ref = NULL;
axis2_options_t *options = NULL;
const axis2_char_t *client_home = NULL;
axis2_svc_client_t* svc_client = NULL;
axiom_node_t *payload = NULL;
axiom_node_t *ret_node = NULL;
/* Set up the environment */
env = axis2_env_create_all("echo.log", AXIS2_LOG_LEVEL_TRACE);
/* Set end point reference of echo service */
address = "http://localhost:9090/axis2/services/echo";;
if (argc > 1 )
address = argv[1];
if (AXIS2_STRCMP(address, "-h") == 0)
{
printf("Usage : %s [endpoint_url]\n", argv[0]);
printf("use -h for help\n");
return 0;
}
printf ("Using endpoint : %s\n", address);
/* Create EPR with given address */
endpoint_ref = axis2_endpoint_ref_create(env, address);
/* Setup options */
options = axis2_options_create(env);
AXIS2_OPTIONS_SET_TO(options, env, endpoint_ref);
AXIS2_OPTIONS_SET_ACTION(options, env,
"http://ws.apache.org/axis2/c/samples/echoString";);
/* Set up deploy folder. It is from the deploy folder, the configuration is
picked up
* using the axis2.xml file.
* In this sample client_home points to the Axis2/C default deploy folder.
The client_home can
* be different from this folder on your system. For example, you may have
a different folder
* (say, my_client_folder) with its own axis2.xml file.
my_client_folder/modules will have the
* modules that the client uses
*/
client_home = AXIS2_GETENV("AXIS2C_HOME");
if (!client_home)
client_home = "../../deploy";
/* Create service client */
svc_client = axis2_svc_client_create(env, client_home);
if (!svc_client)
{
printf("Error creating service client\n");
AXIS2_LOG_ERROR(env->log, AXIS2_LOG_SI, "Stub invoke FAILED: Error
code:"
" %d :: %s", env->error->error_number,
AXIS2_ERROR_GET_MESSAGE(env->error));
}
/* Set service client options */
AXIS2_SVC_CLIENT_SET_OPTIONS(svc_client, env, options);
/* Engage addressing module */
AXIS2_SVC_CLIENT_ENGAGE_MODULE(svc_client, env, AXIS2_MODULE_ADDRESSING);
/* Build the SOAP request message payload using OM API.*/
payload = build_om_payload_for_echo_svc(env);
printf ( "1) watch sockets with netstat.exe, then press any key to send
echo\n" );
_getch();
/* Send request */
ret_node = AXIS2_SVC_CLIENT_SEND_RECEIVE(svc_client, env, payload);
printf ( "2) watch sockets again with netstat.exe, then press any key to
continue\n" );
_getch();
if(ret_node)
{
axis2_char_t *om_str = NULL;
om_str = AXIOM_NODE_TO_STRING(ret_node, env);
if (om_str)
printf("\nReceived OM : %s\n", om_str);
printf("\necho client invoke SUCCESSFUL!\n");
}
else
{
AXIS2_LOG_ERROR(env->log, AXIS2_LOG_SI, "Stub invoke FAILED: Error code:"
" %d :: %s", env->error->error_number,
AXIS2_ERROR_GET_MESSAGE(env->error));
printf("echo client invoke FAILED!\n");
}
if (svc_client)
{
AXIS2_SVC_CLIENT_FREE(svc_client, env);
svc_client = NULL;
}
if (endpoint_ref)
{
AXIS2_ENDPOINT_REF_FREE(endpoint_ref, env);
endpoint_ref = NULL;
}
printf ( "3) press 'r' to repeat or any key to exit\n" );
}}while( 'r' == _getch() );
return 0;
}
/* build SOAP request message content using OM */
axiom_node_t *
build_om_payload_for_echo_svc(const axis2_env_t *env)
{
axiom_node_t *echo_om_node = NULL;
axiom_element_t* echo_om_ele = NULL;
axiom_node_t* text_om_node = NULL;
axiom_element_t * text_om_ele = NULL;
axiom_namespace_t *ns1 = NULL;
axis2_char_t *om_str = NULL;
ns1 = axiom_namespace_create (env, "http://ws.apache.org/axis2/c/samples";,
"ns1");
echo_om_ele = axiom_element_create(env, NULL, "echoString", ns1,
&echo_om_node);
text_om_ele = axiom_element_create(env, echo_om_node, "text", NULL,
&text_om_node);
AXIOM_ELEMENT_SET_TEXT(text_om_ele, env, "echo5", text_om_node);
om_str = AXIOM_NODE_TO_STRING(echo_om_node, env);
if (om_str)
printf("\nSending OM : %s\n", om_str);
return echo_om_node;
}
prgbindir=$(prefix)/bin/samples
prgbin_PROGRAMS = echooo
samplesdir=$(prefix)/samples/client/echooo
samples_DATA=echooo.c README.txt Makefile.am Makefile.in
echo_SOURCES = echooo.c
echo_LDADD = $(LDFLAGS) \
-L$(AXIS2C_HOME)/lib \
-laxis2_util \
-laxis2_axiom \
-laxis2_wsdl \
-laxis2_engine \
-laxis2_parser \
-lpthread \
-lwoden \
-laxis2_xml_schema \
-laxis2_http_sender \
-laxis2_http_receiver \
$(GUTHTHILA_LIBS) \
$(LIBXML2_LIBS)
INCLUDES = -I$(AXIS2C_HOME)/include \
@UTILINC@ \
@AXIOMINC@
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