unsigned char *bipbuf_poll(bipbuf_t* me, const unsigned int size)
{
void *end;
if (bipbuf_is_empty(me))
return NULL;
/* make sure we can actually poll this data */
if (me->size < me->a_start + size)
return NULL;
end = me->data + me->a_start;
me->a_start += size;
/* we seem to be empty.. */
if (me->a_start == me->a_end)
{
/* replace a with region b */
if (1 == me->b_inuse)
{
me->a_start = 0;
me->a_end = me->b_end;
me->b_end = me->b_inuse = 0;
}
else
{
/* safely move the pointer back to the start because we are empty */
me->a_start = me->a_end = 0;
}
}
return end;
}
unsigned char *bipbuf_peek_all(const bipbuf_t* me, unsigned int *size)
{
if (bipbuf_is_empty(me))
return NULL;
*size = me->a_end - me->a_start;
return (unsigned char*)me->data + me->a_start;
}
unsigned char *bipbuf_peek(const bipbuf_t* me, const unsigned int size)
{
/* make sure we can actually peek at this data */
if (me->size < me->a_start + size)
return NULL;
if (bipbuf_is_empty(me))
return NULL;
return me->data + me->a_start;
}
/**
* poll info peer has information
* */
int network_poll(void* caller, void **udata,
const int msec_timeout,
int (*func_process) (void *caller,
void* nethandle,
const char* buf,
unsigned int len),
void (*func_process_connection) (void *,
void* nethandle,
char *ip,
int port)
)
{
client_t* me = *udata;
hashmap_iterator_t iter;
/* loop throught each connection for this peer */
for (
hashmap_iterator(me->connections, &iter);
hashmap_iterator_has_next(me->connections, &iter);
)
{
client_connection_t* cn;
cn = hashmap_iterator_next_value(me->connections, &iter);
/* we need to process a connection request created by the peer */
if (0 == cn->connect_status)
{
char ip[32];
sprintf(ip, "%p", cn->nethandle);
#if 0 /* debugging */
printf("processing connection me:%d them:%d\n",
me->nethandle, cn->nethandle);
#endif
func_process_connection(me->bt, cn->nethandle, ip, 4000);
cn->connect_status = CS_CONNECTED;
}
else if (!bipbuf_is_empty(cn->inbox))
{
int len = bipbuf_get_spaceused(cn->inbox);
if (0 < len)
func_process(me->bt,
(char*)cn->nethandle,
(char*)bipbuf_poll(cn->inbox, len), len);
}
}
return 1;
}
