/*virtual*/ size_t USBSerialStream::available()
{
setupReadableISR(false); //m_inBuf.available() is not reentrant
size_t len = m_inBuf.available();
setupReadableISR(true);
return len;
}
//0 for non-blocking (returns immediately), -1 for infinite blocking
/*virtual*/ int USBSerialStream::read(uint8_t* buf, size_t* pLength, size_t maxLength, uint32_t timeout/*=osWaitForever*/)
{
uint8_t *bufPointerCopy = buf;
DBG("Trying to read at most %d chars", maxLength);
int ret = waitAvailable(timeout);
if(ret)
{
WARN("Error %d while waiting for incoming data", ret);
return ret;
}
int a = available(); //Prevent macro issues
int readLen = MIN( a, maxLength );
*pLength = readLen;
setupReadableISR(false);
while(readLen--)
{
m_inBuf.dequeue(buf);
buf++;
}
setupReadableISR(true);
//printBuffer(bufPointerCopy,*pLength,true); // XXX
return OK;
}
