void v_destroy_session(struct VSession *vsession)
{
vsession->tcp_thread = 0;
vsession->udp_thread = 0;
if(vsession->dgram_conn != NULL) {
v_conn_dgram_destroy(vsession->dgram_conn);
free(vsession->dgram_conn);
vsession->dgram_conn = NULL;
}
if(vsession->stream_conn != NULL) {
v_conn_stream_destroy(vsession->stream_conn);
free(vsession->stream_conn);
vsession->stream_conn = NULL;
}
if(vsession->peer_hostname != NULL) {
free(vsession->peer_hostname);
vsession->peer_hostname = NULL;
}
if(vsession->ded.str != NULL) {
free(vsession->ded.str);
vsession->ded.str = NULL;
}
if(vsession->service != NULL) {
free(vsession->service);
vsession->service = NULL;
}
if(vsession->in_queue != NULL) {
v_in_queue_destroy(&vsession->in_queue);
}
if(vsession->out_queue != NULL) {
v_out_queue_destroy(&vsession->out_queue);
}
if(vsession->host_url != NULL) {
free(vsession->host_url);
vsession->host_url = NULL;
}
if(vsession->peer_cookie.str != NULL) {
free(vsession->peer_cookie.str);
vsession->peer_cookie.str = NULL;
}
if(vsession->host_cookie.str != NULL) {
free(vsession->host_cookie.str);
vsession->host_cookie.str = NULL;
}
if(vsession->client_name != NULL) {
free(vsession->client_name);
vsession->client_name = NULL;
}
if(vsession->client_version != NULL) {
free(vsession->client_version);
vsession->client_version = NULL;
}
}
void* vc_main_dgram_loop(void *arg)
{
struct vContext *C = (struct vContext*)arg;
struct VSession *vsession = CTX_current_session(C);
struct VDgramConn *dgram_conn = vsession->dgram_conn;
struct VStreamConn *stream_conn = CTX_current_stream_conn(C);
struct VPacket *r_packet, *s_packet;
char error = 0;
const uint8 *ret_val = 0;
if(dgram_conn==NULL) {
/* Create new datagrame connection */
if((dgram_conn = vc_create_client_dgram_conn(C))==NULL) {
goto finish;
}
vsession->dgram_conn = dgram_conn;
}
CTX_current_dgram_conn_set(C, dgram_conn);
CTX_io_ctx_set(C, &dgram_conn->io_ctx);
#if (defined WITH_OPENSSL) && OPENSSL_VERSION_NUMBER>=0x10000000
/* If negotiated security is DTLS, then try to do DTLS handshake */
if(dgram_conn->io_ctx.flags & SOCKET_SECURED) {
if(vc_create_dtls_connection(C) == 0) {
CTX_current_dgram_conn_set(C, NULL);
CTX_io_ctx_set(C, NULL);
free(dgram_conn);
ret_val = &vrs_conn_term_error;
goto finish;
}
}
#endif
/* Packet structure for receiving */
r_packet = (struct VPacket*)malloc(sizeof(struct VPacket));
CTX_r_packet_set(C, r_packet);
/* Packet structure for sending */
s_packet = (struct VPacket*)malloc(sizeof(struct VPacket));
CTX_s_packet_set(C, s_packet);
/* Run loop of the first phase of the handshake */
if((error = vc_REQUEST_loop(C)) == STATE_EXIT_ERROR) {
/* Do not confirm proposed URL, when client was not able to connect
* to the server */
CTX_io_ctx_set(C, &stream_conn->io_ctx);
vc_NEGOTIATE_newhost(C, NULL);
CTX_io_ctx_set(C, &dgram_conn->io_ctx);
ret_val = &vrs_conn_term_error;
goto end;
}
/* When server responded in the first phase of the handshake, then run loop of the second
* phase of the handshake */
if((error = vc_PARTOPEN_loop(C)) == STATE_EXIT_ERROR) {
/* Do not confirm proposed URL, when client was not able to connect
* to the server */
CTX_io_ctx_set(C, &stream_conn->io_ctx);
vc_NEGOTIATE_newhost(C, NULL);
CTX_io_ctx_set(C, &dgram_conn->io_ctx);
ret_val = &vrs_conn_term_error;
goto end;
} else {
struct Connect_Accept_Cmd *conn_accept;
/* Put connect accept command to queue -> call callback function */
conn_accept = v_Connect_Accept_create(vsession->avatar_id, vsession->user_id);
v_in_queue_push(vsession->in_queue, (struct Generic_Cmd*)conn_accept);
/* Send confirmation of the URL to the server */
CTX_io_ctx_set(C, &stream_conn->io_ctx);
vc_NEGOTIATE_newhost(C, vsession->host_url);
CTX_io_ctx_set(C, &dgram_conn->io_ctx);
/* TCP connection could be closed now */
vsession->stream_conn->host_state = TCP_CLIENT_STATE_CLOSING;
}
/* Main loop for data exchange */
if((error = vc_OPEN_loop(C)) == STATE_EXIT_ERROR) {
ret_val = &vrs_conn_term_error;
goto end;
}
/* Closing loop */
if((error = vc_CLOSING_loop(C)) == STATE_EXIT_ERROR) {
ret_val = &vrs_conn_term_error;
goto end;
}
/* TODO: distinguish between terminating connection by server and client */
ret_val = &vrs_conn_term_server;
end:
/* CLOSED state */
if(is_log_level(VRS_PRINT_DEBUG_MSG)) {
printf("%c[%d;%dm", 27, 1, 31);
v_print_log(VRS_PRINT_DEBUG_MSG, "Client state: CLOSED\n");
printf("%c[%dm", 27, 0);
}
free(r_packet);
free(s_packet);
#if (defined WITH_OPENSSL) && OPENSSL_VERSION_NUMBER>=0x10000000
if(dgram_conn->io_ctx.flags & SOCKET_SECURED) {
vc_destroy_dtls_connection(C);
}
#endif
v_conn_dgram_destroy(dgram_conn);
CTX_current_dgram_conn_set(C, NULL);
finish:
pthread_exit((void*)ret_val);
return NULL;
}
