Introduce connAddr

Originally, connPeerToString is designed to get the address info from
socket only(for both TCP & TLS), and the API 'connPeerToString' is
oriented to operate a FD like:
int connPeerToString(connection *conn, char *ip, size_t ip_len, int *port) {
    return anetFdToString(conn ? conn->fd : -1, ip, ip_len, port, FD_TO_PEER_NAME);
}

Introduce connAddr and implement .addr method for socket and TLS,
thus the API 'connAddr' and 'connFormatAddr' become oriented to a
connection like:
static inline int connAddr(connection *conn, char *ip, size_t ip_len, int *port, int remote) {
    if (conn && conn->type->addr) {
        return conn->type->addr(conn, ip, ip_len, port, remote);
    }

    return -1;
}

Also remove 'FD_TO_PEER_NAME' & 'FD_TO_SOCK_NAME', use a boolean type
'remote' to get local/remote address of a connection.

With these changes, it's possible to support the other connection
types which does not use socket(Ex, RDMA).

Thanks to Oran for suggestions!

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/tls.c b/src/tls.c
index 019f5a9d8..442824dcd 100644
--- a/src/tls.c
+++ b/src/tls.c
@@ -718,6 +718,10 @@ static void tlsEventHandler(struct aeEventLoop *el, int fd, void *clientData, in
     tlsHandleEvent(conn, mask);
 }
 
+static int connTLSAddr(connection *conn, char *ip, size_t ip_len, int *port, int remote) {
+    return anetFdToString(conn->fd, ip, ip_len, port, remote);
+}
+
 static void connTLSClose(connection *conn_) {
     tls_connection *conn = (tls_connection *) conn_;
 
@@ -1064,6 +1068,7 @@ ConnectionType CT_TLS = {
 
     /* ae & accept & listen & error & address handler */
     .ae_handler = tlsEventHandler,
+    .addr = connTLSAddr,
 
     /* create/close connection */
     .close = connTLSClose,