void send_packet(packet_t *pkt) {
int packet_len = 0;
#ifdef DEBUG
if (pkt->datalen == 0) {
int num_bytes = sprintf(pkt->data, "== ack %d : rwinsz %d ==", pkt->ack, pkt->rwinsz);
packet_len = PACKET_HEADER_SZ + num_bytes;
} else {
packet_len = PACKET_SZ;
}
#else
if (pkt->datalen == 0) {
packet_len = PACKET_HEADER_SZ;
} else {
packet_len = PACKET_SZ;
}
#endif
packet_t tp = *pkt;
packet_hton(&tp, pkt);
#ifdef DEBUG
int r;
if (rwindow_received_all(&rwin)) {
r = perhaps_rarely_send(sockfd, (void *)&tp, packet_len, 0);
} else {
r = perhaps_send(sockfd, (void *)&tp, packet_len, 0);
}
#else
int r = perhaps_send(sockfd, (void *)&tp, packet_len, 0);
#endif
if (r < 0 && errno == EINTR) {
return;
} else if (r < 0) {
perror("send");
exit(1);
}
}
int ndSendData(netObject netObj, char *data, int dataLen, int flag)
{
int ret = 0 ;
nd_packhdr_t *msghdr = (nd_packhdr_t *) data ;
ND_USERMSG_SYS_RESERVED(msghdr) = 0 ;
packet_ntoh(&msghdr) ;
ret = nd_connector_send((nd_handle) netObj, (nd_packhdr_t *)data, flag) ;
packet_hton(&msghdr) ;
if (-1 == ret && NDERR_WOULD_BLOCK != nd_object_lasterror((nd_handle)netObj)) {
tryto_terminate(netObj) ;
}
return ret ;
}
int send_packet(int peer_id, int type, int seq, int ack, char* body, int body_len) {
DPRINTF(DEBUG_SOCKETS, "send packet to peer:%d type:%d seq:%d ack:%d body_len:%d\n",
peer_id, type, seq, ack, body_len);
struct io_peer *peer = NULL;
HASH_FIND(hh_id, peers_id, &peer_id, sizeof(int), peer);
if (peer == NULL) {
fprintf(stderr, "Unknown peer id %d\n", peer_id);
return -1;
}
char data[sizeof(struct packet_header) + body_len];
struct packet_header *header = (struct packet_header *) data;
header->magic = PACKET_MAGIC;
header->version = PACKET_VERSION;
header->header_len = sizeof(struct packet_header);
header->total_len = (uint16_t) (header->header_len + body_len);
header->type = (unsigned int) type;
header->seq = (unsigned int) seq;
header->ack = (unsigned int) ack;
if (header->type == PACKET_ACK) {
--header->ack;
}
packet_hton(header);
if (body && body_len) {
memcpy(data + sizeof(struct packet_header), body, (size_t) body_len);
}
int ret = spiffy_sendto(peer_sockfd, data, sizeof(data), MSG_NOSIGNAL, (const struct sockaddr *) &peer->addr, sizeof(struct sockaddr_in));
if (ret == -1) {
DEBUG_PERROR("Cannot send packet\n");
}
return ret;
}
