qint64 QAudioInterfaceBuffer::bytesAvailable()
{
m_mutex.lock();
int count = writeCounter() - readCounter();
m_mutex.unlock();
if (count >= 0)
return count;
return 0;
}
/*------------------------------------------------------------------------------*/
void GRConnection::sendGRPacket(wxUint32 command, wxUint32 payloadLength, wxUint8 *payload)
{
GR_PACKET_HEADER header;
wxUint32 len = 0;
wxUint8 *packet;
wxUint8 counterByte;
bool writeCounterByte = false;
header.command = htonl(command);
writeCounterByte = writeCounter(command);
if(writeCounterByte == false) header.payloadLength = htonl(payloadLength);
else header.payloadLength = htonl(payloadLength+1);
//Check if we should append packet counter byte
if(writeCounterByte == false) len = sizeof(header)+payloadLength;
else len = sizeof(header)+payloadLength + sizeof(wxUint8);
packet = new wxUint8[len];
memcpy(packet, &header, sizeof(header));
memcpy(packet+sizeof(header), payload, payloadLength);
//append packet counter byte
if(writeCounterByte == true)
{
counterByte = getPacketCounterByte(command, payloadLength);
memcpy(packet+sizeof(header)+payloadLength, (wxUint8*)&counterByte, sizeof(wxUint8));
}
GRLogger::getInstance()->log(GRLogger::LOG_INFO, wxT("Sent Data"));
GRLogger::getInstance()->logData(packet, len);
if(socket->IsConnected())
socket->Write(packet, len);
delete[] packet;
}
qint64 QAudioInterfaceBuffer::writeData(const char *data, qint64 len)
{
if (m_size <= 0 || len <= 0) {
return 0;
}
m_mutex.lock();
int count = len;
const char *pdata = data;
int increment = 0;
#if QT_DEBUG_SOUNDBACKEND
qDebug() << QThread::currentThreadId() << (quint64)m_elapsed.elapsed() <<
"wr:" << len << "+" << (writeCounter() - readCounter());
#endif
while (count > 0) {
bool wrap = (m_writePos + count) >= m_size;
if (wrap) {
int block = m_size - m_writePos;
memcpy(m_buffer + m_writePos, pdata, block);
increment = block;
count -= block;
pdata += block;
m_writeWrap++;
m_writePos = 0;
} else {
memcpy(m_buffer + m_writePos, pdata, count);
increment = count;
count -= count;
pdata += count;
m_writePos = (m_writePos + increment) % m_size;
}
}
m_mutex.unlock();
return len;
}
int incrementFile()
{
return writeCounter(addOneTotInt(readCounter()));
}