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Progress of the management webservice

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This commit is contained in:
vemax78
2013-07-25 22:19:00 +02:00
parent 47e4cd14d8
commit 996a9e0f36
3 changed files with 217 additions and 26 deletions
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214
src/ac/ac_backend.c
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@ -6,7 +6,8 @@
#define SOAP_NAMESPACE_URI "http://smartcapwap/namespace"
/* */
#define AC_BACKEND_WAIT_TIMEOUT 60000
#define AC_BACKEND_WAIT_TIMEOUT 10000
#define SOAP_PROTOCOL_RESPONSE_WAIT_EVENT_TIMEOUT 70000
/* */
struct ac_backend_t {
@ -14,6 +15,8 @@ struct ac_backend_t {
int endthread;
capwap_event_t wait;
capwap_lock_t lock;
capwap_lock_t backendlock;
/* Backend Soap */
int activebackend;
@ -32,57 +35,207 @@ static int ac_backend_soap_join(void) {
struct ac_soap_request* request;
struct ac_http_soap_server* server;
ASSERT(g_ac_backend.soaprequest == NULL);
/* Get HTTP Soap Server */
server = *(struct ac_http_soap_server**)capwap_array_get_item_pointer(g_ac.availablebackends, g_ac_backend.activebackend);
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
/* Build Soap Request */
request = ac_soapclient_create_request("joinBackend", SOAP_NAMESPACE_URI);
if (!request) {
return 0;
if (!g_ac_backend.endthread) {
request = ac_soapclient_create_request("joinBackend", SOAP_NAMESPACE_URI);
if (request) {
g_ac_backend.soaprequest = ac_soapclient_prepare_request(request, server);
}
}
/* Prepare to Send Request */
g_ac_backend.soaprequest = ac_soapclient_prepare_request(request, server);
capwap_lock_exit(&g_ac_backend.lock);
/* */
if (!g_ac_backend.soaprequest) {
ac_soapclient_free_request(request);
if (request) {
ac_soapclient_free_request(request);
}
return 0;
}
/* Send Request & Recv Response */
if (ac_soapclient_send_request(g_ac_backend.soaprequest, "presence::joinBackend")) {
if (ac_soapclient_send_request(g_ac_backend.soaprequest, "")) {
struct ac_soap_response* response = ac_soapclient_recv_response(g_ac_backend.soaprequest);
if (response) {
/* Get join result */
if ((response->responsecode == HTTP_RESULT_OK) && response->xmlResponseReturn) {
xmlChar* xmlResult = xmlNodeGetContent(response->xmlResponseReturn);
result = atoi((const char*)xmlResult);
xmlFree(xmlResult);
}
/* */
ac_soapclient_free_response(response);
}
}
/* */
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
/* Free resource */
ac_soapclient_close_request(g_ac_backend.soaprequest, 1);
g_ac_backend.soaprequest = NULL;
capwap_lock_exit(&g_ac_backend.lock);
return result;
}
/* */
static int ac_backend_soap_waitevent(void) {
int result = -1;
struct ac_soap_request* request;
struct ac_http_soap_server* server;
ASSERT(g_ac_backend.soaprequest == NULL);
/* Get HTTP Soap Server */
server = *(struct ac_http_soap_server**)capwap_array_get_item_pointer(g_ac.availablebackends, g_ac_backend.activebackend);
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
/* Build Soap Request */
if (!g_ac_backend.endthread) {
request = ac_soapclient_create_request("waitBackendEvent", SOAP_NAMESPACE_URI);
if (request) {
g_ac_backend.soaprequest = ac_soapclient_prepare_request(request, server);
/* Change result timeout */
g_ac_backend.soaprequest->responsetimeout = SOAP_PROTOCOL_RESPONSE_WAIT_EVENT_TIMEOUT;
}
}
capwap_lock_exit(&g_ac_backend.lock);
/* */
if (!g_ac_backend.soaprequest) {
if (request) {
ac_soapclient_free_request(request);
}
return -1;
}
/* Send Request & Recv Response */
if (ac_soapclient_send_request(g_ac_backend.soaprequest, "")) {
struct ac_soap_response* response = ac_soapclient_recv_response(g_ac_backend.soaprequest);
if (response) {
/* Wait event result */
/*if ((response->responsecode == HTTP_RESULT_OK) && response->xmlResponseReturn) {
TODO
}*/
result = 0;
/* */
ac_soapclient_free_response(response);
}
}
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
/* Free resource */
ac_soapclient_close_request(g_ac_backend.soaprequest, 1);
g_ac_backend.soaprequest = NULL;
capwap_lock_exit(&g_ac_backend.lock);
return result;
}
/* */
static void ac_backend_soap_leave(void) {
struct ac_soap_request* request;
struct ac_http_soap_server* server;
ASSERT(g_ac_backend.soaprequest == NULL);
/* */
if (!g_ac_backend.backendstatus) {
return;
}
/* Get HTTP Soap Server */
server = *(struct ac_http_soap_server**)capwap_array_get_item_pointer(g_ac.availablebackends, g_ac_backend.activebackend);
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
/* Build Soap Request */
request = ac_soapclient_create_request("leaveBackend", SOAP_NAMESPACE_URI);
if (request) {
g_ac_backend.soaprequest = ac_soapclient_prepare_request(request, server);
}
capwap_lock_exit(&g_ac_backend.lock);
/* */
if (!g_ac_backend.soaprequest) {
if (request) {
ac_soapclient_free_request(request);
}
return;
}
/* Send Request & Recv Response */
if (ac_soapclient_send_request(g_ac_backend.soaprequest, "")) {
struct ac_soap_response* response = ac_soapclient_recv_response(g_ac_backend.soaprequest);
if (response) {
ac_soapclient_free_response(response);
}
}
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
/* Free resource */
ac_soapclient_close_request(g_ac_backend.soaprequest, 1);
g_ac_backend.soaprequest = NULL;
capwap_lock_exit(&g_ac_backend.lock);
}
/* */
static void ac_backend_run(void) {
int result;
int connected = 0;
capwap_lock_enter(&g_ac_backend.backendlock);
while (!g_ac_backend.endthread) {
if (g_ac_backend.backendstatus) {
if (connected) {
result = ac_backend_soap_waitevent();
if (result < 0) {
if (!g_ac_backend.endthread) {
capwap_logging_debug("Lost connection with Backend Server");
}
/* Connection error, change Backend Server */
connected = 0;
capwap_lock_enter(&g_ac_backend.backendlock);
g_ac_backend.activebackend = (g_ac_backend.activebackend + 1) % g_ac.availablebackends->count;
}
} else {
/* Join with a Backend Server */
if (ac_backend_soap_join()) {
capwap_logging_debug("Joined with Backend Server");
/* Join Complete */
connected = 1;
g_ac_backend.backendstatus = 1;
g_ac_backend.errorjoinbackend = 0;
capwap_lock_exit(&g_ac_backend.backendlock);
} else {
/* Change Backend Server */
g_ac_backend.activebackend = (g_ac_backend.activebackend + 1) % g_ac.availablebackends->count;
@ -90,17 +243,29 @@ static void ac_backend_run(void) {
/* Wait timeout before continue */
if (g_ac_backend.errorjoinbackend >= g_ac.availablebackends->count) {
capwap_event_wait_timeout(&g_ac_backend.wait, AC_BACKEND_WAIT_TIMEOUT);
capwap_logging_debug("Unable to join with Backend Server");
/* */
g_ac_backend.backendstatus = 0;
g_ac_backend.errorjoinbackend = 0;
/* Wait before retry join to backend server */
capwap_lock_exit(&g_ac_backend.backendlock);
capwap_event_wait_timeout(&g_ac_backend.wait, AC_BACKEND_WAIT_TIMEOUT);
capwap_lock_enter(&g_ac_backend.backendlock);
}
}
}
}
/* Leave backend */
/* Leave Backend */
ac_backend_soap_leave();
g_ac_backend.backendstatus = 0;
/* */
if (!connected) {
capwap_lock_exit(&g_ac_backend.backendlock);
}
}
/* */
@ -121,11 +286,18 @@ int ac_backend_isconnect(void) {
/* */
struct ac_http_soap_server* ac_backend_gethttpsoapserver(void) {
struct ac_http_soap_server* result;
if (!ac_backend_isconnect()) {
return NULL;
}
return *(struct ac_http_soap_server**)capwap_array_get_item_pointer(g_ac.availablebackends, g_ac_backend.activebackend);
/* Get active connection only if Backend Management Thread is not trying to connect with a Backend Server */
capwap_lock_enter(&g_ac_backend.backendlock);
result = *(struct ac_http_soap_server**)capwap_array_get_item_pointer(g_ac.availablebackends, g_ac_backend.activebackend);
capwap_lock_exit(&g_ac_backend.backendlock);
return result;
}
/* */
@ -141,6 +313,8 @@ int ac_backend_start(void) {
}
/* Init */
capwap_lock_init(&g_ac_backend.lock);
capwap_lock_init(&g_ac_backend.backendlock);
capwap_event_init(&g_ac_backend.wait);
/* Create thread */
@ -158,9 +332,23 @@ void ac_backend_stop(void) {
void* dummy;
g_ac_backend.endthread = 1;
/* Critical section */
capwap_lock_enter(&g_ac_backend.lock);
if (g_ac_backend.soaprequest) {
ac_soapclient_shutdown_request(g_ac_backend.soaprequest);
}
/* */
capwap_lock_exit(&g_ac_backend.lock);
capwap_lock_exit(&g_ac_backend.backendlock);
capwap_event_signal(&g_ac_backend.wait);
/* Wait close thread */
pthread_join(g_ac_backend.threadid, &dummy);
/* */
capwap_event_destroy(&g_ac_backend.wait);
capwap_lock_destroy(&g_ac_backend.lock);
}