/* Associate a socket to a connection and and add to the manager. */
NS_INTERNAL void ns_set_sock(struct ns_connection *nc, sock_t sock) {
ns_set_non_blocking_mode(sock);
ns_set_close_on_exec(sock);
nc->sock = sock;
ns_add_conn(nc->mgr, nc);
DBG(("%p %d", nc, sock));
}
int ns_socketpair(sock_t sp[2], int sock_type) {
union socket_address sa;
sock_t sock;
socklen_t len = sizeof(sa.sin);
int ret = 0;
sock = sp[0] = sp[1] = INVALID_SOCKET;
(void) memset(&sa, 0, sizeof(sa));
sa.sin.sin_family = AF_INET;
sa.sin.sin_port = htons(0);
sa.sin.sin_addr.s_addr = htonl(0x7f000001);
if ((sock = socket(AF_INET, sock_type, 0)) == INVALID_SOCKET) {
} else if (bind(sock, &sa.sa, len) != 0) {
} else if (sock_type == SOCK_STREAM && listen(sock, 1) != 0) {
} else if (getsockname(sock, &sa.sa, &len) != 0) {
} else if ((sp[0] = socket(AF_INET, sock_type, 0)) == INVALID_SOCKET) {
} else if (connect(sp[0], &sa.sa, len) != 0) {
} else if (sock_type == SOCK_DGRAM &&
(getsockname(sp[0], &sa.sa, &len) != 0 ||
connect(sock, &sa.sa, len) != 0)) {
} else if ((sp[1] = (sock_type == SOCK_DGRAM ? sock
: accept(sock, &sa.sa, &len))) ==
INVALID_SOCKET) {
} else {
ns_set_close_on_exec(sp[0]);
ns_set_close_on_exec(sp[1]);
if (sock_type == SOCK_STREAM) closesocket(sock);
ret = 1;
}
if (!ret) {
if (sp[0] != INVALID_SOCKET) closesocket(sp[0]);
if (sp[1] != INVALID_SOCKET) closesocket(sp[1]);
if (sock != INVALID_SOCKET) closesocket(sock);
sock = sp[0] = sp[1] = INVALID_SOCKET;
}
return ret;
}
/*
* Create a connection, associate it with the given socket and event handler,
* and add to the manager.
*
* See the `ns_add_sock_opts` structure for a description of the options.
*/
struct ns_connection *ns_add_sock_opt(struct ns_mgr *s, sock_t sock,
ns_event_handler_t callback,
struct ns_add_sock_opts opts) {
struct ns_connection *conn;
if ((conn = (struct ns_connection *) NS_MALLOC(sizeof(*conn))) != NULL) {
memset(conn, 0, sizeof(*conn));
ns_set_non_blocking_mode(sock);
ns_set_close_on_exec(sock);
conn->sock = sock;
conn->handler = callback;
conn->mgr = s;
conn->last_io_time = time(NULL);
conn->flags = opts.flags;
conn->user_data = opts.user_data;
ns_add_conn(s, conn);
DBG(("%p %d", conn, sock));
}
return conn;
}