void pair_send(pipe_t pipe, lob_t packet, link_t link)
{
net_loopback_t pair = (net_loopback_t)pipe->arg;
if(!pair || !packet || !link) return;
LOG("pair pipe from %s",link->id->hashname);
if(link->mesh == pair->a) mesh_receive(pair->b,packet,pipe);
else if(link->mesh == pair->b) mesh_receive(pair->a,packet,pipe);
else lob_free(packet);
}
// do all chunk/socket stuff
pipe_t tcp4_flush(pipe_t pipe)
{
int len;
lob_t packet;
uint8_t buf[256];
pipe_tcp4_t to = tcp4_to(pipe);
if(!to) return NULL;
if(chunks_len(to->chunks))
{
while((len = write(to->client, chunks_write(to->chunks), chunks_len(to->chunks))) > 0)
{
chunks_written(to->chunks, len);
LOG("wrote %d bytes to %s",len,pipe->id);
}
}
while((len = read(to->client, buf, 256)) > 0)
{
LOG("reading %d bytes from %s",len,pipe->id);
chunks_read(to->chunks, buf, len);
}
// any incoming full packets can be received
while((packet = chunks_receive(to->chunks))) mesh_receive(to->net->mesh, packet, pipe);
if(len < 0 && errno != EWOULDBLOCK && errno != EINPROGRESS)
{
LOG("socket error to %s: %s",pipe->id,strerror(errno));
close(to->client);
to->client = 0;
}
return pipe;
}
// 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;
}
