/**
* Called by an application to receive data from remote peers
* @param local
* @param remote
* @param buffer_ptr
* @param buffer_size
* @return The number of received bytes or -1 if some error occurred.
*/
int recv_from_peer(const struct nodeID *local, struct nodeID **remote, uint8_t *buffer_ptr, int buffer_size)
{
int size;
if (receivedBuffer[rIdxUp].data==NULL) { //block till first message arrives
wait4data(local, NULL, NULL);
}
assert(receivedBuffer[rIdxUp].data && receivedBuffer[rIdxUp].id);
(*remote) = receivedBuffer[rIdxUp].id;
// retrieve a msg from the buffer
size = receivedBuffer[rIdxUp].len;
if (size>buffer_size) {
fprintf(stderr, "Net-helper : recv_from_peer: buffer too small (size:%d > buffer_size: %d)!\n",size,buffer_size);
return -1;
}
memcpy(buffer_ptr, receivedBuffer[rIdxUp].data, size);
free(receivedBuffer[rIdxUp].data);
receivedBuffer[rIdxUp].data = NULL;
receivedBuffer[rIdxUp].id = NULL;
rIdxUp = (rIdxUp+1)%NH_BUFFER_SIZE;
// fprintf(stderr, "Net-helper : I've got mail!!!\n");
return size;
}
int UnixSocketAdapter::send_msg(const string &msg, const string &src,
const string &dst, int timeout)
{
DBG("sending out serialized SER command:\n<<%s>>.\n", msg.c_str());
// FIXME: is this init really needed?!
//if(init(src) || sendto(dst, msg.c_str(),msg.length())){
if(sendto(dst, msg.c_str(),msg.length())){
ERROR("...while sending request to SER.\n");
return -1;
}
if (timeout) { // should it collect the reply?
if(wait4data(timeout) < 1){
ERROR("while waiting for SER's response\n");
return -1;
}
string status_line;
if(cacheMsg() || getParam(status_line))
return -1;
unsigned int res_code;
string res_reason;
if(parse_return_code(status_line.c_str(),res_code,res_reason))
return -1;
if( (res_code < 200) ||
(res_code >= 300) ) {
ERROR("SER answered: %i %s\n", res_code,res_reason.c_str());
return -1;
}
}
return 0;
}
