static void accept_new(int accept_fd)
{
int from, to, feid, teid;
while (1) {
from = net_accept(cos_spd_id(), accept_fd);
assert(from != accept_fd);
if (-EAGAIN == from) {
return;
} else if (from < 0) {
BUG();
return;
}
feid = evt_get();
assert(feid > 0);
if (0 < net_accept_data(cos_spd_id(), from, feid)) BUG();
teid = evt_get();
assert(teid > 0);
to = tsplit(cos_spd_id(), td_root, "", 0, TOR_RW, teid);
if (to < 0) {
printc("torrent split returned %d", to);
BUG();
}
mapping_add(from, to, feid, teid);
}
}
td_t
tsplit(spdid_t spdid, td_t tid, char *param, int len,
tor_flags_t tflags, long evtid)
{
td_t ret = -EINVAL;
struct torrent *t;
net_connection_t nc = 0;
int accept = 0;
if (tor_isnull(tid)) return -EINVAL;
NET_LOCK_TAKE();
/* creating a new connection */
if (tid == td_root || len == 0 || strstr(param, "accept")) {
if (tid == td_root) { /* new connection */
nc = net_create_tcp_connection(spdid, cos_get_thd_id(), evtid);
if (nc <= 0) ERR_THROW(-ENOMEM, done);
} else { /* len == 0 || strstr(param, "accept"), accept on connection */
t = tor_lookup(tid);
if (!t) goto done;
nc = net_accept(spdid, (net_connection_t)t->data);
if (nc == -EAGAIN) {
/* printc("net accept return EAGAIN\n"); */
ERR_THROW(-EAGAIN, done);
}
if (nc < 0) ERR_THROW(-EINVAL, done);
if (0 < net_accept_data(spdid, nc, evtid)) BUG();
accept = 1;
}
t = tor_alloc((void*)nc, tflags);
if (!t) ERR_THROW(-ENOMEM, free);
ret = t->td;
} else { /* modifying an existing connection */
t = tor_lookup(tid);
if (!t) goto done;
nc = (net_connection_t)t->data;
}
if (!accept && len != 0) {
int r;
NET_LOCK_RELEASE();
r = modify_connection(spdid, nc, param, len);
if (r < 0) ret = r;
NET_LOCK_TAKE();
}
done:
NET_LOCK_RELEASE();
assert(lock_contested(&net_lock) != cos_get_thd_id());
return ret;
free:
net_close(spdid, nc);
goto done;
}
