From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47853) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eQvsh-0007pq-T9 for qemu-devel@nongnu.org; Mon, 18 Dec 2017 08:55:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eQvsg-0005A1-82 for qemu-devel@nongnu.org; Mon, 18 Dec 2017 08:54:59 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42692) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eQvsf-000592-V9 for qemu-devel@nongnu.org; Mon, 18 Dec 2017 08:54:58 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 178EAC001600 for ; Mon, 18 Dec 2017 13:54:57 +0000 (UTC) From: "Daniel P. Berrange" Date: Mon, 18 Dec 2017 13:54:17 +0000 Message-Id: <20171218135417.28301-2-berrange@redhat.com> In-Reply-To: <20171218135417.28301-1-berrange@redhat.com> References: <20171218135417.28301-1-berrange@redhat.com> Subject: [Qemu-devel] [PATCH v2 1/1] chardev: convert the socket server to QIONetListener List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , "Daniel P. Berrange" Instead of creating a QIOChannelSocket directly for the chardev 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. Signed-off-by: Daniel P. Berrange --- chardev/char-socket.c | 72 +++++++++++++++++++++------------------------------ 1 file changed, 29 insertions(+), 43 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 53eda8ef00..2d2252ab0a 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -25,6 +25,7 @@ #include "chardev/char.h" #include "io/channel-socket.h" #include "io/channel-tls.h" +#include "io/net-listener.h" #include "qemu/error-report.h" #include "qapi/error.h" #include "qapi/clone-visitor.h" @@ -40,8 +41,7 @@ typedef struct { Chardev parent; QIOChannel *ioc; /* Client I/O channel */ QIOChannelSocket *sioc; /* Client master channel */ - QIOChannelSocket *listen_ioc; - guint listen_tag; + QIONetListener *listener; QCryptoTLSCreds *tls_creds; int connected; int max_size; @@ -93,9 +93,9 @@ static void check_report_connect_error(Chardev *chr, qemu_chr_socket_restart_timer(chr); } -static gboolean tcp_chr_accept(QIOChannel *chan, - GIOCondition cond, - void *opaque); +static void tcp_chr_accept(QIONetListener *listener, + QIOChannelSocket *cioc, + void *opaque); static int tcp_chr_read_poll(void *opaque); static void tcp_chr_disconnect(Chardev *chr); @@ -401,9 +401,9 @@ static void tcp_chr_disconnect(Chardev *chr) tcp_chr_free_connection(chr); - if (s->listen_ioc && s->listen_tag == 0) { - s->listen_tag = qio_channel_add_watch( - QIO_CHANNEL(s->listen_ioc), G_IO_IN, tcp_chr_accept, chr, NULL); + if (s->listener) { + qio_net_listener_set_client_func(s->listener, tcp_chr_accept, + chr, NULL); } update_disconnected_filename(s); if (emit_close) { @@ -702,9 +702,8 @@ static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc) if (s->do_nodelay) { qio_channel_set_delay(s->ioc, false); } - if (s->listen_tag) { - g_source_remove(s->listen_tag); - s->listen_tag = 0; + if (s->listener) { + qio_net_listener_set_client_func(s->listener, NULL, NULL, NULL); } if (s->tls_creds) { @@ -736,24 +735,14 @@ static int tcp_chr_add_client(Chardev *chr, int fd) return ret; } -static gboolean tcp_chr_accept(QIOChannel *channel, - GIOCondition cond, - void *opaque) +static void tcp_chr_accept(QIONetListener *listener, + QIOChannelSocket *cioc, + void *opaque) { Chardev *chr = CHARDEV(opaque); - QIOChannelSocket *sioc; - - sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(channel), - NULL); - if (!sioc) { - return TRUE; - } - - tcp_chr_new_client(chr, sioc); - object_unref(OBJECT(sioc)); - - return TRUE; + tcp_chr_set_client_ioc_name(chr, cioc); + tcp_chr_new_client(chr, cioc); } static int tcp_chr_wait_connected(Chardev *chr, Error **errp) @@ -767,9 +756,10 @@ static int tcp_chr_wait_connected(Chardev *chr, Error **errp) if (s->is_listen) { info_report("QEMU waiting for connection on: %s", chr->filename); - qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), true, NULL); - tcp_chr_accept(QIO_CHANNEL(s->listen_ioc), G_IO_IN, chr); - qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), false, NULL); + sioc = qio_net_listener_wait_client(s->listener); + tcp_chr_set_client_ioc_name(chr, sioc); + tcp_chr_new_client(chr, sioc); + object_unref(OBJECT(sioc)); } else { sioc = qio_channel_socket_new(); tcp_chr_set_client_ioc_name(chr, sioc); @@ -797,12 +787,9 @@ static void char_socket_finalize(Object *obj) s->reconnect_timer = 0; } qapi_free_SocketAddress(s->addr); - if (s->listen_tag) { - g_source_remove(s->listen_tag); - s->listen_tag = 0; - } - if (s->listen_ioc) { - object_unref(OBJECT(s->listen_ioc)); + if (s->listener) { + qio_net_listener_set_client_func(s->listener, NULL, NULL, NULL); + object_unref(OBJECT(s->listener)); } if (s->tls_creds) { object_unref(OBJECT(s->tls_creds)); @@ -935,29 +922,28 @@ static void qmp_chardev_open_socket(Chardev *chr, } else { if (s->is_listen) { char *name; - sioc = qio_channel_socket_new(); + s->listener = qio_net_listener_new(); name = g_strdup_printf("chardev-tcp-listener-%s", chr->label); - qio_channel_set_name(QIO_CHANNEL(sioc), name); + qio_net_listener_set_name(s->listener, name); g_free(name); - if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) { + if (qio_net_listener_open_sync(s->listener, s->addr, errp) < 0) { + object_unref(OBJECT(s->listener)); goto error; } qapi_free_SocketAddress(s->addr); - s->addr = socket_local_address(sioc->fd, errp); + s->addr = socket_local_address(s->listener->sioc[0]->fd, errp); update_disconnected_filename(s); - s->listen_ioc = sioc; if (is_waitconnect && qemu_chr_wait_connected(chr, errp) < 0) { return; } if (!s->ioc) { - s->listen_tag = qio_channel_add_watch( - QIO_CHANNEL(s->listen_ioc), G_IO_IN, - tcp_chr_accept, chr, NULL); + qio_net_listener_set_client_func(s->listener, tcp_chr_accept, + chr, NULL); } } else if (qemu_chr_wait_connected(chr, errp) < 0) { goto error; -- 2.14.3