static inline int ight_socket_normalize_if_invalid_unix_(int filenum) {
/*
* This makes sense only in the Unix world in which all negative
* integers different from -1 are non-canonical representations of
* the invalid socket descriptor.
*/
if (!ight_socket_valid(filenum))
filenum = IGHT_SOCKET_INVALID;
return (filenum);
}
IghtConnectionState::IghtConnectionState(const char *family, const char *address,
const char *port, long long filenum)
{
auto evbase = ight_get_global_event_base();
auto poller = ight_get_global_poller();
if (!ight_socket_valid(filenum))
filenum = IGHT_SOCKET_INVALID; /* Normalize */
/*
* TODO: switch to RAII.
*/
// filedesc: if valid, it is set on success only
if ((this->bev = bufferevent_socket_new(evbase, (evutil_socket_t)
filenum, BEV_OPT_DEFER_CALLBACKS)) == NULL)
throw std::bad_alloc();
// closing: nothing to be done
if (!ight_socket_valid(filenum))
this->connecting = 1;
// reading: nothing to be done
if ((this->address = strdup(address)) == NULL) {
bufferevent_free(this->bev);
throw std::bad_alloc();
}
if ((this->port = strdup(port)) == NULL) {
bufferevent_free(this->bev);
free(this->address);
throw std::bad_alloc();
}
if ((this->addrlist = new (std::nothrow) IghtStringVector(poller,
16)) == NULL) {
bufferevent_free(this->bev);
free(this->address);
free(this->port);
throw std::bad_alloc();
}
if ((this->family = strdup(family)) == NULL) {
bufferevent_free(this->bev);
free(this->address);
free(this->port);
delete (this->addrlist);
throw std::bad_alloc();
}
if ((this->pflist = new (std::nothrow) IghtStringVector(poller,
16)) == NULL) {
bufferevent_free(this->bev);
free(this->address);
free(this->port);
delete (this->addrlist);
free(this->family);
throw std::bad_alloc();
}
// must_resolve_ipv4: if connecting, set later by this->resolve()
// must_resolve_ipv6: if connecting, set later by this->resolve()
/*
* The following makes this non copyable and non movable.
*/
bufferevent_setcb(this->bev, this->handle_read, this->handle_write,
this->handle_event, this);
if (!ight_socket_valid(filenum))
this->start_connect = IghtDelayedCall(0.0, std::bind(
this->resolve, this));
else
this->filedesc = filenum; /* Own the socket on success */
}