From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56809) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eRhym-00054j-RH for qemu-devel@nongnu.org; Wed, 20 Dec 2017 12:16:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eRhyi-0007Qf-K4 for qemu-devel@nongnu.org; Wed, 20 Dec 2017 12:16:28 -0500 Received: from mail-wr0-x241.google.com ([2a00:1450:400c:c0c::241]:43969) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eRhyi-0007QA-DM for qemu-devel@nongnu.org; Wed, 20 Dec 2017 12:16:24 -0500 Received: by mail-wr0-x241.google.com with SMTP id w68so10470396wrc.10 for ; Wed, 20 Dec 2017 09:16:24 -0800 (PST) Sender: Paolo Bonzini From: Paolo Bonzini Date: Wed, 20 Dec 2017 18:14:56 +0100 Message-Id: <1513790098-9815-45-git-send-email-pbonzini@redhat.com> In-Reply-To: <1513790098-9815-1-git-send-email-pbonzini@redhat.com> References: <1513790098-9815-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PULL 44/46] blockdev: convert internal NBD server to QIONetListener List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org From: "Daniel P. Berrange" Instead of creating a QIOChannelSocket directly for the NBD server socket, use a QIONetListener. This provides the ability to listen on multiple sockets at the same time, so enables full support for IPv4/IPv6 dual stack. Reviewed-by: Eric Blake Signed-off-by: Daniel P. Berrange Message-Id: <20171218101643.20360-2-berrange@redhat.com> Signed-off-by: Paolo Bonzini --- blockdev-nbd.c | 50 ++++++++++++++++---------------------------------- 1 file changed, 16 insertions(+), 34 deletions(-) diff --git a/blockdev-nbd.c b/blockdev-nbd.c index 28f551a..9e3c221 100644 --- a/blockdev-nbd.c +++ b/blockdev-nbd.c @@ -18,10 +18,10 @@ #include "qmp-commands.h" #include "block/nbd.h" #include "io/channel-socket.h" +#include "io/net-listener.h" typedef struct NBDServerData { - QIOChannelSocket *listen_ioc; - int watch; + QIONetListener *listener; QCryptoTLSCreds *tlscreds; } NBDServerData; @@ -32,27 +32,13 @@ static void nbd_blockdev_client_closed(NBDClient *client, bool ignored) nbd_client_put(client); } -static gboolean nbd_accept(QIOChannel *ioc, GIOCondition condition, - gpointer opaque) +static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc, + gpointer opaque) { - QIOChannelSocket *cioc; - - if (!nbd_server) { - return FALSE; - } - - cioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc), - NULL); - if (!cioc) { - return TRUE; - } - qio_channel_set_name(QIO_CHANNEL(cioc), "nbd-server"); nbd_client_new(NULL, cioc, nbd_server->tlscreds, NULL, nbd_blockdev_client_closed); - object_unref(OBJECT(cioc)); - return TRUE; } @@ -62,10 +48,8 @@ static void nbd_server_free(NBDServerData *server) return; } - if (server->watch != -1) { - g_source_remove(server->watch); - } - object_unref(OBJECT(server->listen_ioc)); + qio_net_listener_disconnect(server->listener); + object_unref(OBJECT(server->listener)); if (server->tlscreds) { object_unref(OBJECT(server->tlscreds)); } @@ -112,12 +96,12 @@ void nbd_server_start(SocketAddress *addr, const char *tls_creds, } nbd_server = g_new0(NBDServerData, 1); - nbd_server->watch = -1; - nbd_server->listen_ioc = qio_channel_socket_new(); - qio_channel_set_name(QIO_CHANNEL(nbd_server->listen_ioc), - "nbd-listener"); - if (qio_channel_socket_listen_sync( - nbd_server->listen_ioc, addr, errp) < 0) { + nbd_server->listener = qio_net_listener_new(); + + qio_net_listener_set_name(nbd_server->listener, + "nbd-listener"); + + if (qio_net_listener_open_sync(nbd_server->listener, addr, errp) < 0) { goto error; } @@ -134,12 +118,10 @@ void nbd_server_start(SocketAddress *addr, const char *tls_creds, } } - nbd_server->watch = qio_channel_add_watch( - QIO_CHANNEL(nbd_server->listen_ioc), - G_IO_IN, - nbd_accept, - NULL, - NULL); + qio_net_listener_set_client_func(nbd_server->listener, + nbd_accept, + NULL, + NULL); return; -- 1.8.3.1