// do all chunk/socket stuff
pipe_t serial_flush(pipe_t pipe)
{
int ret, count;
uint8_t len;
lob_t packet;
uint8_t c1;
pipe_serial_t to;
if(!pipe || !(to = (pipe_serial_t)pipe->arg)) return NULL;
count = 0;
while((ret = to->read()) >= 0)
{
count++;
c1 = ret;
util_chunks_read(to->chunks, &c1, 1);
}
if(count)
{
LOG("read %d bytes from %s",count,pipe->id);
}
// any incoming full packets can be received
while((packet = util_chunks_receive(to->chunks))) mesh_receive(to->net->mesh, packet, pipe);
// write the next waiting chunk
while((len = util_chunks_len(to->chunks)))
{
if((ret = to->write(util_chunks_write(to->chunks), len)) > 0)
{
LOG("wrote %d size chunk to %s",ret,pipe->id);
// blocks till next incoming chunk is read before sending more
util_chunks_written(to->chunks,len);
}else{
LOG("chunk write failed, %d != %d",ret,len);
// TODO, write a full chunk of zeros to clear any line errors and reset state?
break;
}
}
return pipe;
}
// return the next block of data to be written to the stream transport
uint8_t *util_chunks_write(util_chunks_t chunks)
{
if(!util_chunks_len(chunks)) return NULL;
return chunks->writing+chunks->writeat;
}
