From patchwork Tue Jun 21 10:02:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 638630 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3rYkZF1DVTz9sBR for ; Tue, 21 Jun 2016 20:32:37 +1000 (AEST) Received: from localhost ([::1]:50537 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFIyx-0005Gk-6X for incoming@patchwork.ozlabs.org; Tue, 21 Jun 2016 06:32:35 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46481) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFIWj-0005Nq-4F for qemu-devel@nongnu.org; Tue, 21 Jun 2016 06:03:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bFIWh-0000PC-0m for qemu-devel@nongnu.org; Tue, 21 Jun 2016 06:03:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50515) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFIWg-0000P6-OX for qemu-devel@nongnu.org; Tue, 21 Jun 2016 06:03:22 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5219B63E12; Tue, 21 Jun 2016 10:03:22 +0000 (UTC) Received: from localhost ([10.41.1.246]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u5LA3LOS028925; Tue, 21 Jun 2016 06:03:21 -0400 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Date: Tue, 21 Jun 2016 12:02:50 +0200 Message-Id: <1466503372-28334-23-git-send-email-marcandre.lureau@redhat.com> In-Reply-To: <1466503372-28334-1-git-send-email-marcandre.lureau@redhat.com> References: <1466503372-28334-1-git-send-email-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 21 Jun 2016 10:03:22 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 22/24] char: add and use tcp_chr_wait_connected X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yuanhan.liu@linux.intel.com, victork@redhat.com, mst@redhat.com, jonshin@cisco.com, mukawa@igel.co.jp, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Marc-André Lureau Add a chr_wait_connected for the tcp backend, and use it in the open_socket() function. Signed-off-by: Marc-André Lureau --- qemu-char.c | 63 ++++++++++++++++++++++++++++++++++++++++++------------------- 1 file changed, 44 insertions(+), 19 deletions(-) diff --git a/qemu-char.c b/qemu-char.c index a0e7736..dca859d 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -3140,6 +3140,32 @@ static gboolean tcp_chr_accept(QIOChannel *channel, return TRUE; } +static int tcp_chr_wait_connected(CharDriverState *chr, Error **errp) +{ + TCPCharDriver *s = chr->opaque; + QIOChannelSocket *sioc; + + while (!s->connected) { + if (s->is_listen) { + fprintf(stderr, "QEMU waiting for connection on: %s\n", + 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); + } else { + sioc = qio_channel_socket_new(); + if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { + object_unref(OBJECT(sioc)); + return -1; + } + tcp_chr_new_client(chr, sioc); + object_unref(OBJECT(sioc)); + } + } + + return 0; +} + int qemu_chr_wait_connected(CharDriverState *chr, Error **errp) { if (chr->chr_wait_connected) { @@ -4403,6 +4429,7 @@ static CharDriverState *qmp_chardev_open_socket(const char *id, qapi_copy_SocketAddress(&s->addr, sock->addr); chr->opaque = s; + chr->chr_wait_connected = tcp_chr_wait_connected; chr->chr_write = tcp_chr_write; chr->chr_sync_read = tcp_chr_sync_read; chr->chr_close = tcp_chr_close; @@ -4426,32 +4453,30 @@ static CharDriverState *qmp_chardev_open_socket(const char *id, s->reconnect_time = reconnect; } - sioc = qio_channel_socket_new(); if (s->reconnect_time) { + sioc = qio_channel_socket_new(); qio_channel_socket_connect_async(sioc, s->addr, qemu_chr_socket_connected, chr, NULL); - } else if (s->is_listen) { - if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) { - goto error; - } - s->listen_ioc = sioc; - if (is_waitconnect) { - fprintf(stderr, "QEMU waiting for connection on: %s\n", - chr->filename); - tcp_chr_accept(QIO_CHANNEL(s->listen_ioc), G_IO_IN, chr); - } - qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), false, NULL); - if (!s->ioc) { - s->listen_tag = qio_channel_add_watch( - QIO_CHANNEL(s->listen_ioc), G_IO_IN, tcp_chr_accept, chr, NULL); - } } else { - if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { + if (s->is_listen) { + sioc = qio_channel_socket_new(); + if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) { + goto error; + } + s->listen_ioc = sioc; + if (is_waitconnect && + qemu_chr_wait_connected(chr, errp) < 0) { + goto error; + } + if (!s->ioc) { + s->listen_tag = qio_channel_add_watch( + QIO_CHANNEL(s->listen_ioc), G_IO_IN, + tcp_chr_accept, chr, NULL); + } + } else if (qemu_chr_wait_connected(chr, errp) < 0) { goto error; } - tcp_chr_new_client(chr, sioc); - object_unref(OBJECT(sioc)); } return chr;