void AsyncUsbReceiver::TransferComplete(struct libusb_transfer *transfer) {
if (transfer != m_transfer) {
OLA_WARN << "Mismatched libusb transfer: " << transfer << " != "
<< m_transfer;
return;
}
if (transfer->status != LIBUSB_TRANSFER_COMPLETED &&
transfer->status != LIBUSB_TRANSFER_TIMED_OUT ) {
OLA_WARN << "Transfer returned " << transfer->status;
}
ola::thread::MutexLocker locker(&m_mutex);
m_transfer_state = (transfer->status == LIBUSB_TRANSFER_NO_DEVICE ?
DISCONNECTED : IDLE);
if (m_suppress_continuation) {
return;
}
if (transfer->status != LIBUSB_TRANSFER_TIMED_OUT) {
if (TransferCompleted(&m_rx_buffer, transfer->actual_length)) {
// Input changed
if (m_receive_callback.get()) {
m_plugin_adaptor->Execute(m_receive_callback.get());
}
}
}
// Start next request
PerformTransfer();
}
void AsyncUsbSender::TransferComplete(struct libusb_transfer *transfer) {
if (transfer != m_transfer) {
OLA_WARN << "Mismatched libusb transfer: " << transfer << " != "
<< m_transfer;
return;
}
if (transfer->status != LIBUSB_TRANSFER_COMPLETED) {
OLA_WARN << "Transfer returned " << transfer->status;
}
ola::thread::MutexLocker locker(&m_mutex);
m_transfer_state = (transfer->status == LIBUSB_TRANSFER_NO_DEVICE ?
DISCONNECTED : IDLE);
if (m_suppress_continuation) {
return;
}
PostTransferHook();
if ((m_transfer_state == IDLE) && m_pending_tx) {
m_pending_tx = false;
PerformTransfer(m_tx_buffer);
}
}
bool AsyncUsbReceiver::Start() {
if (!m_usb_handle) {
OLA_WARN << "AsyncUsbReceiver hasn't been initialized";
return false;
}
ola::thread::MutexLocker locker(&m_mutex);
return PerformTransfer();
}
bool AsyncUsbSender::SendDMX(const DmxBuffer &buffer) {
if (!m_usb_handle) {
OLA_WARN << "AsyncUsbSender hasn't been initialized";
return false;
}
ola::thread::MutexLocker locker(&m_mutex);
if (m_transfer_state == IDLE) {
PerformTransfer(buffer);
} else {
// Buffer incoming data so we can send it when the outstanding transfers
// complete.
m_pending_tx = true;
m_tx_buffer.Set(buffer);
}
return true;
}
