From nobody Fri Apr 26 09:42:55 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1502352708803352.6175176338335; Thu, 10 Aug 2017 01:11:48 -0700 (PDT) Received: from localhost ([::1]:51607 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dfiZH-00014Z-3H for importer@patchew.org; Thu, 10 Aug 2017 04:11:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33821) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dfiYU-0000mK-1O for qemu-devel@nongnu.org; Thu, 10 Aug 2017 04:10:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dfiYP-0007hq-2G for qemu-devel@nongnu.org; Thu, 10 Aug 2017 04:10:58 -0400 Received: from mxhk.zte.com.cn ([63.217.80.70]:53790 helo=zte.com.cn) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dfiYO-0007eI-Nu for qemu-devel@nongnu.org; Thu, 10 Aug 2017 04:10:53 -0400 Received: from unknown (HELO mse01.zte.com.cn) (10.30.3.20) by localhost with (AES256-SHA encrypted) SMTP; 10 Aug 2017 08:10:28 -0000 Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse01.zte.com.cn with ESMTP id v7A89m8P066869; Thu, 10 Aug 2017 16:09:49 +0800 (GMT-8) (envelope-from wang.yong155@zte.com.cn) Received: from localhost.localdomain ([10.74.120.79]) by szsmtp06.zte.com.cn (Lotus Domino Release 8.5.3FP6) with ESMTP id 2017081016095405-293471 ; Thu, 10 Aug 2017 16:09:54 +0800 X-scanvirus: By SEG_CYREN AntiVirus Engine X-scanresult: CLEAN X-MAILFROM: X-RCPTTO: X-FROMIP: 10.30.3.20 X-SEG-Scaned: 1 X-Received: unknown,10.30.3.20,20170810161028 From: Wang yong To: pbonzini@redhat.com, stefanha@redhat.com, famz@redhat.com, jasowang@redhat.com Date: Fri, 11 Aug 2017 08:29:15 +0800 Message-Id: <1502411355-3943-1-git-send-email-wang.yong155@zte.com.cn> X-Mailer: git-send-email 1.8.3.1 X-MIMETrack: Itemize by SMTP Server on SZSMTP06/server/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2017-08-10 16:09:54, Serialize by Router on notes_smtp/zte_ltd(Release 9.0.1FP7|August 17, 2016) at 2017-08-10 16:09:37, Serialize complete at 2017-08-10 16:09:37 X-MAIL: mse01.zte.com.cn v7A89m8P066869 X-HQIP: 127.0.0.1 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 63.217.80.70 Subject: [Qemu-devel] [PATCH] qemu-iothread: IOThread supports the GMainContext event loop 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: zhang.zhanghailiang@huawei.com, lizhijian@cn.fujitsu.com, wang.guang55@zte.com.cn, qemu-devel@nongnu.org, zhangchen.fnst@cn.fujitsu.com, wang.yong155@zte.com.cn Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Wang Yong IOThread uses AioContext event loop and does not run a GMainContext. Therefore,chardev cannot work in IOThread,such as the chardev is used for colo-compare packets reception. This patch makes the IOThread run the GMainContext event loop, chardev and IOThread can work together. Signed-off-by: Wang Yong Signed-off-by: Wang Guang --- include/sysemu/iothread.h | 1 + iothread.c | 13 +++++++++++++ 2 files changed, 14 insertions(+) diff --git a/include/sysemu/iothread.h b/include/sysemu/iothread.h index e6da1a4..ffe4e8a 100644 --- a/include/sysemu/iothread.h +++ b/include/sysemu/iothread.h @@ -24,6 +24,7 @@ typedef struct { =20 QemuThread thread; AioContext *ctx; + GMainLoop *loop; QemuMutex init_done_lock; QemuCond init_done_cond; /* is thread initialization done? */ bool stopping; diff --git a/iothread.c b/iothread.c index beeb870..b6f3c3c 100644 --- a/iothread.c +++ b/iothread.c @@ -46,6 +46,7 @@ AioContext *qemu_get_current_aio_context(void) static void *iothread_run(void *opaque) { IOThread *iothread =3D opaque; + GMainContext *context; =20 rcu_register_thread(); =20 @@ -57,6 +58,15 @@ static void *iothread_run(void *opaque) =20 while (!atomic_read(&iothread->stopping)) { aio_poll(iothread->ctx, true); + + context =3D iothread->ctx->source.context; + if (context) { + iothread->loop =3D g_main_loop_new(context, TRUE); + g_main_loop_run(iothread->loop); + + g_main_loop_unref(iothread->loop); + g_main_context_unref(context); + } } =20 rcu_unregister_thread(); @@ -72,6 +82,9 @@ static int iothread_stop(Object *object, void *opaque) return 0; } iothread->stopping =3D true; + if (iothread->loop) { + g_main_loop_quit(iothread->loop); + } aio_notify(iothread->ctx); qemu_thread_join(&iothread->thread); return 0; --=20 1.8.3.1