int processPacket(int fd) {
//struct svmp_sensor_event_t *p = (struct svmp_sensor_event_t*)malloc(sizeof(struct svmp_sensor_event_t));;
int len = sizeof(struct svmp_sensor_event_t);
//char buf [64];
//struct svmp_sensor_event_t *p = NULL; //malloc(sizeof(struct svmp_sensor_event_t));;
struct svmp_sensor_event_t event;
int tot = 0;
int tmp;
memset(&event,0,sizeof(event));
ERROR("processing packet \n");
tot = read(fd,&event,sizeof(event));
ERROR("processing packet : read %d bytes \n",tot);
if (tot < 0) {
ERROR("read error : %s\n",strerror(errno));
return tot;
}
if (tot == 0){
ERROR("read 0 bytes : %s\n",strerror(errno));
return tot;
}
ERROR("packet received type :%d, len %d\n",event.type,tot);
handlepacket(&event);
//free(p);
return tot;
// sanity check on the packet
}
static int
callback_packetreceived(void * cookie, int status)
{
struct netpacket_internal * NPC = cookie;
struct netpacket_op * head = NPC->pending_head;
handlepacket_callback * handlepacket = head->handlepacket;
int rc = 0;
/* If we're being cancelled, return. */
if (status == NETWORK_STATUS_CANCEL)
goto done;
/* On non-protocol errors, try to reconnect. */
if ((status != NETWORK_STATUS_OK) &&
(status != NETPROTO_STATUS_PROTERR)) {
if (reconnect(NPC))
goto err0;
goto done;
}
/* Call upstream callback. */
head->handlepacket = NULL;
NPC->pending_current = head;
rc = handlepacket(head->cookie, NPC, status, NPC->packettype,
NPC->packetbuf, NPC->packetlen);
/* If we didn't send a follow-up packet, this operation is done. */
if (head->handlepacket == NULL) {
if (NPC->pending_tail == head)
NPC->pending_tail = NULL;
NPC->pending_head = head->next;
free(head);
/* We have successfully performed an operation. */
NPC->ndrops = 0;
/*
* If a 'connection lost' message was printed for this
* connection, tell the user that the connection has been
* re-established. We don't do this earlier because
* obtaining a TCP connection is useless if we can't actually
* manage to send a request and get a response back through
* it.
*/
if (NPC->connlostmsgprinted) {
warn0("Connection re-established");
/* Don't print this again. */
NPC->connlostmsgprinted = 0;
}
}
/* Read another packet if appropriate. */
if ((NPC->pending_head != NULL) &&
(NPC->pending_head->handlepacket != NULL)) {
if (netproto_readpacket(NPC->NC, NPC->pending_head->getbuf,
callback_packetreceived, NPC))
goto err0;
} else {
NPC->reading = 0;
}
done:
/* Free the packet buffer. */
free(NPC->packetbuf);
NPC->packetbuf = NULL;
/* Return value from callback. */
return (rc);
err0:
/* Failure! */
return (-1);
}
