From patchwork Thu Jan 4 14:18:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Xu X-Patchwork-Id: 10144783 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F36166034B for ; Thu, 4 Jan 2018 14:20:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E45D128560 for ; Thu, 4 Jan 2018 14:20:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D73A4286A8; Thu, 4 Jan 2018 14:20:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 895E8286A1 for ; Thu, 4 Jan 2018 14:20:12 +0000 (UTC) Received: from localhost ([::1]:37361 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eX6NP-0007ZR-Ms for patchwork-qemu-devel@patchwork.kernel.org; Thu, 04 Jan 2018 09:20:11 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43604) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eX6M9-00066R-6x for qemu-devel@nongnu.org; Thu, 04 Jan 2018 09:18:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eX6M6-0003Ro-Vg for qemu-devel@nongnu.org; Thu, 04 Jan 2018 09:18:53 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43270) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eX6M6-0003QW-OB for qemu-devel@nongnu.org; Thu, 04 Jan 2018 09:18:50 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F165F87623 for ; Thu, 4 Jan 2018 14:18:49 +0000 (UTC) Received: from xz-mi.redhat.com (ovpn-12-97.pek2.redhat.com [10.72.12.97]) by smtp.corp.redhat.com (Postfix) with ESMTP id D1D6E608EE; Thu, 4 Jan 2018 14:18:47 +0000 (UTC) From: Peter Xu To: qemu-devel@nongnu.org Date: Thu, 4 Jan 2018 22:18:34 +0800 Message-Id: <20180104141835.17987-3-peterx@redhat.com> In-Reply-To: <20180104141835.17987-1-peterx@redhat.com> References: <20180104141835.17987-1-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 04 Jan 2018 14:18:49 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4 2/3] chardev: let g_idle_add() be with chardev gcontext 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: Paolo Bonzini , peterx@redhat.com, Stefan Hajnoczi , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP The idle task will be attached to main gcontext even if the chardev backend is running in another gcontext. Fix the only caller by extending the g_idle_add() logic into the more powerful g_source_attach(). It's basically g_idle_add_full() implementation, but with the chardev's gcontext passed in. Signed-off-by: Peter Xu --- chardev/char-pty.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/chardev/char-pty.c b/chardev/char-pty.c index 761ae6dec1..8248e36ab9 100644 --- a/chardev/char-pty.c +++ b/chardev/char-pty.c @@ -43,7 +43,7 @@ typedef struct { /* Protected by the Chardev chr_write_lock. */ int connected; guint timer_tag; - guint open_tag; + GSource *open_source; } PtyChardev; #define PTY_CHARDEV(obj) OBJECT_CHECK(PtyChardev, (obj), TYPE_CHARDEV_PTY) @@ -58,7 +58,7 @@ static gboolean pty_chr_timer(gpointer opaque) qemu_mutex_lock(&chr->chr_write_lock); s->timer_tag = 0; - s->open_tag = 0; + s->open_source = NULL; if (!s->connected) { /* Next poll ... */ pty_chr_update_read_handler_locked(chr); @@ -183,7 +183,7 @@ static gboolean qemu_chr_be_generic_open_func(gpointer opaque) Chardev *chr = CHARDEV(opaque); PtyChardev *s = PTY_CHARDEV(opaque); - s->open_tag = 0; + s->open_source = NULL; qemu_chr_be_event(chr, CHR_EVENT_OPENED); return FALSE; } @@ -194,9 +194,10 @@ static void pty_chr_state(Chardev *chr, int connected) PtyChardev *s = PTY_CHARDEV(chr); if (!connected) { - if (s->open_tag) { - g_source_remove(s->open_tag); - s->open_tag = 0; + if (s->open_source) { + g_source_destroy(s->open_source); + g_source_unref(s->open_source); + s->open_source = NULL; } remove_fd_in_watch(chr); s->connected = 0; @@ -210,9 +211,13 @@ static void pty_chr_state(Chardev *chr, int connected) s->timer_tag = 0; } if (!s->connected) { - g_assert(s->open_tag == 0); + g_assert(s->open_source == NULL); + s->open_source = g_idle_source_new(); s->connected = 1; - s->open_tag = g_idle_add(qemu_chr_be_generic_open_func, chr); + g_source_set_callback(s->open_source, + qemu_chr_be_generic_open_func, + chr, NULL); + g_source_attach(s->open_source, chr->gcontext); } if (!chr->gsource) { chr->gsource = io_add_watch_poll(chr, s->ioc,