static void broker_decrement_ref(BROKER_HANDLE broker)
{
/*Codes_SRS_BROKER_13_058: [If `broker` is NULL the function shall do nothing.]*/
if (broker != NULL)
{
/*Codes_SRS_BROKER_13_111: [Otherwise, Broker_Destroy shall decrement the internal ref count of the message.]*/
/*Codes_SRS_BROKER_13_112: [If the ref count is zero then the allocated resources are freed.]*/
if (DEC_REF(BROKER_HANDLE_DATA, broker) == DEC_RETURN_ZERO)
{
BROKER_HANDLE_DATA* broker_data = (BROKER_HANDLE_DATA*)broker;
if (singlylinkedlist_get_head_item(broker_data->modules) != NULL)
{
LogError("WARNING: There are still active modules attached to the broker and the broker is being destroyed.");
}
/* May want to do nn_shutdown first for cleanliness. */
nn_close(broker_data->publish_socket);
STRING_delete(broker_data->url);
singlylinkedlist_destroy(broker_data->modules);
Lock_Deinit(broker_data->modules_lock);
free(broker_data);
}
}
else
{
LogError("broker handle is NULL");
}
}
static void feedbackReceivedCallback(void* context, IOTHUB_SERVICE_FEEDBACK_BATCH* feedbackBatch)
{
printf("Feedback received, context: %s\n", (char*)context);
if (feedbackBatch != NULL)
{
(void)printf("Batch userId : %s\r\n", feedbackBatch->userId);
(void)printf("Batch lockToken : %s\r\n", feedbackBatch->lockToken);
if (feedbackBatch->feedbackRecordList != NULL)
{
LIST_ITEM_HANDLE feedbackRecord = singlylinkedlist_get_head_item(feedbackBatch->feedbackRecordList);
while (feedbackRecord != NULL)
{
IOTHUB_SERVICE_FEEDBACK_RECORD* feedback = (IOTHUB_SERVICE_FEEDBACK_RECORD*)singlylinkedlist_item_get_value(feedbackRecord);
if (feedback != NULL)
{
(void)printf("Feedback\r\n");
(void)printf(" deviceId : %s\r\n", feedback->deviceId);
(void)printf(" generationId : %s\r\n", feedback->generationId);
(void)printf(" correlationId : %s\r\n", feedback->correlationId);
(void)printf(" description : %s\r\n", feedback->description);
(void)printf(" enqueuedTimeUtc : %s\r\n", feedback->enqueuedTimeUtc);
feedbackRecord = singlylinkedlist_get_next_item(feedbackRecord);
}
}
}
}
}
void socketio_destroy(CONCRETE_IO_HANDLE socket_io)
{
LIST_ITEM_HANDLE first_pending_io;
if (socket_io != NULL)
{
SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
/* we cannot do much if the close fails, so just ignore the result */
(void)closesocket(socket_io_instance->socket);
/* clear allpending IOs */
while ((first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list)) != NULL)
{
PENDING_SOCKET_IO* pending_socket_io = (PENDING_SOCKET_IO*)singlylinkedlist_item_get_value(first_pending_io);
if (pending_socket_io != NULL)
{
free(pending_socket_io->bytes);
free(pending_socket_io);
}
singlylinkedlist_remove(socket_io_instance->pending_io_list, first_pending_io);
}
singlylinkedlist_destroy(socket_io_instance->pending_io_list);
if (socket_io_instance->hostname != NULL)
{
free(socket_io_instance->hostname);
}
free(socket_io);
}
}
void socketio_dowork(CONCRETE_IO_HANDLE socket_io)
{
int send_result;
if (socket_io != NULL)
{
SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
if (socket_io_instance->io_state == IO_STATE_OPEN)
{
int received = 1;
LIST_ITEM_HANDLE first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
while (first_pending_io != NULL)
{
PENDING_SOCKET_IO* pending_socket_io = (PENDING_SOCKET_IO*)singlylinkedlist_item_get_value(first_pending_io);
if (pending_socket_io == NULL)
{
LogError("Failure: retrieving socket from list");
indicate_error(socket_io_instance);
break;
}
/* TODO: we need to do more than a cast here to be 100% clean
The following bug was filed: [WarnL4] socketio_win32 does not account for already sent bytes and there is a truncation of size from size_t to int */
send_result = send(socket_io_instance->socket, (const char*)pending_socket_io->bytes, (int)pending_socket_io->size, 0);
if (send_result != (int)pending_socket_io->size)
{
int last_error = WSAGetLastError();
if (last_error != WSAEWOULDBLOCK)
{
free(pending_socket_io->bytes);
free(pending_socket_io);
(void)singlylinkedlist_remove(socket_io_instance->pending_io_list, first_pending_io);
}
else
{
/* try again */
}
}
else
{
if (pending_socket_io->on_send_complete != NULL)
{
pending_socket_io->on_send_complete(pending_socket_io->callback_context, IO_SEND_OK);
}
free(pending_socket_io->bytes);
free(pending_socket_io);
if (singlylinkedlist_remove(socket_io_instance->pending_io_list, first_pending_io) != 0)
{
LogError("Failure: removing socket from list");
indicate_error(socket_io_instance);
}
}
first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
}
while (received > 0)
{
unsigned char* recv_bytes = malloc(RECEIVE_BYTES_VALUE);
if (recv_bytes == NULL)
{
LogError("Socketio_Failure: NULL allocating input buffer.");
indicate_error(socket_io_instance);
}
else
{
received = recv(socket_io_instance->socket, (char*)recv_bytes, RECEIVE_BYTES_VALUE, 0);
if (received > 0)
{
if (socket_io_instance->on_bytes_received != NULL)
{
/* explictly ignoring here the result of the callback */
(void)socket_io_instance->on_bytes_received(socket_io_instance->on_bytes_received_context, recv_bytes, received);
}
}
else
{
int last_error = WSAGetLastError();
if (last_error != WSAEWOULDBLOCK && last_error != ERROR_SUCCESS)
{
LogError("Socketio_Failure: Recieving data from endpoint: %d.", last_error);
indicate_error(socket_io_instance);
}
}
free(recv_bytes);
}
}
}
}
}
int socketio_send(CONCRETE_IO_HANDLE socket_io, const void* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context)
{
int result;
if ((socket_io == NULL) ||
(buffer == NULL) ||
(size == 0))
{
/* Invalid arguments */
LogError("Invalid argument: send given invalid parameter");
result = __LINE__;
}
else
{
SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
if (socket_io_instance->io_state != IO_STATE_OPEN)
{
LogError("Failure: socket state is not opened.");
result = __LINE__;
}
else
{
LIST_ITEM_HANDLE first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
if (first_pending_io != NULL)
{
if (add_pending_io(socket_io_instance, buffer, size, on_send_complete, callback_context) != 0)
{
LogError("Failure: add_pending_io failed.");
result = __LINE__;
}
else
{
result = 0;
}
}
else
{
/* TODO: we need to do more than a cast here to be 100% clean
The following bug was filed: [WarnL4] socketio_win32 does not account for already sent bytes and there is a truncation of size from size_t to int */
int send_result = send(socket_io_instance->socket, buffer, (int)size, 0);
if (send_result != (int)size)
{
int last_error = WSAGetLastError();
if (last_error != WSAEWOULDBLOCK)
{
indicate_error(socket_io_instance);
LogError("Failure: sending socket failed %d.", last_error);
result = __LINE__;
}
else
{
/* queue data */
if (add_pending_io(socket_io_instance, buffer, size, on_send_complete, callback_context) != 0)
{
LogError("Failure: add_pending_io failed.");
result = __LINE__;
}
else
{
result = 0;
}
}
}
else
{
if (on_send_complete != NULL)
{
on_send_complete(callback_context, IO_SEND_OK);
}
result = 0;
}
}
}
}
return result;
}
void tls_server_io_schannel_destroy(CONCRETE_IO_HANDLE tls_io)
{
if (tls_io != NULL)
{
LIST_ITEM_HANDLE first_pending_io;
TLS_IO_INSTANCE* tls_io_instance = (TLS_IO_INSTANCE*)tls_io;
if (tls_io_instance->credential_handle_allocated)
{
(void)FreeCredentialHandle(&tls_io_instance->credential_handle);
tls_io_instance->credential_handle_allocated = false;
}
if (tls_io_instance->received_bytes != NULL)
{
free(tls_io_instance->received_bytes);
}
if (tls_io_instance->x509_schannel_handle != NULL)
{
x509_schannel_destroy(tls_io_instance->x509_schannel_handle);
}
if (tls_io_instance->x509certificate != NULL)
{
free(tls_io_instance->x509certificate);
}
if (tls_io_instance->x509privatekey != NULL)
{
free(tls_io_instance->x509privatekey);
}
xio_destroy(tls_io_instance->socket_io);
free(tls_io_instance->host_name);
first_pending_io = singlylinkedlist_get_head_item(tls_io_instance->pending_io_list);
while (first_pending_io != NULL)
{
PENDING_SEND* pending_send = (PENDING_SEND*)singlylinkedlist_item_get_value(first_pending_io);
if (pending_send == NULL)
{
LogError("Failure: retrieving socket from list");
indicate_error(tls_io_instance);
break;
}
else
{
if (pending_send->on_send_complete != NULL)
{
pending_send->on_send_complete(pending_send->on_send_complete_context, IO_SEND_CANCELLED);
}
if (singlylinkedlist_remove(tls_io_instance->pending_io_list, first_pending_io) != 0)
{
LogError("Failure: removing pending IO from list");
}
}
}
if (tls_io_instance->cert_context != NULL)
{
if (!CertFreeCertificateContext(tls_io_instance->cert_context))
{
LogError("Failure freeing certificate context");
}
}
singlylinkedlist_destroy(tls_io_instance->pending_io_list);
free(tls_io);
}
}
