From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48246) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dhVAS-0005pG-Uv for qemu-devel@nongnu.org; Tue, 15 Aug 2017 02:17:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dhVAR-00018h-PV for qemu-devel@nongnu.org; Tue, 15 Aug 2017 02:17:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43804) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dhVAR-00018Y-Jt for qemu-devel@nongnu.org; Tue, 15 Aug 2017 02:17:31 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A248D3E2BD for ; Tue, 15 Aug 2017 06:17:30 +0000 (UTC) From: Peter Xu Date: Tue, 15 Aug 2017 14:17:05 +0800 Message-Id: <1502777827-18874-5-git-send-email-peterx@redhat.com> In-Reply-To: <1502777827-18874-1-git-send-email-peterx@redhat.com> References: <1502777827-18874-1-git-send-email-peterx@redhat.com> Subject: [Qemu-devel] [RFC 4/6] migration: return incoming task tag for fd List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: "Daniel P . Berrange" , Laurent Vivier , Juan Quintela , "Dr . David Alan Gilbert" , peterx@redhat.com Allow to return the task tag in fd_start_incoming_migration(). Signed-off-by: Peter Xu --- migration/fd.c | 18 +++++++++++------- migration/fd.h | 2 +- 2 files changed, 12 insertions(+), 8 deletions(-) diff --git a/migration/fd.c b/migration/fd.c index 30f5258..e9a548c 100644 --- a/migration/fd.c +++ b/migration/fd.c @@ -52,7 +52,11 @@ static gboolean fd_accept_incoming_migration(QIOChannel *ioc, return FALSE; /* unregister */ } -void fd_start_incoming_migration(const char *infd, Error **errp) +/* + * Returns the tag ID of the watch that is attached to global main + * loop (>0), or zero if failure detected. + */ +guint fd_start_incoming_migration(const char *infd, Error **errp) { QIOChannel *ioc; int fd; @@ -63,13 +67,13 @@ void fd_start_incoming_migration(const char *infd, Error **errp) ioc = qio_channel_new_fd(fd, errp); if (!ioc) { close(fd); - return; + return 0; } qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-incoming"); - qio_channel_add_watch(ioc, - G_IO_IN, - fd_accept_incoming_migration, - NULL, - NULL); + return qio_channel_add_watch(ioc, + G_IO_IN, + fd_accept_incoming_migration, + NULL, + NULL); } diff --git a/migration/fd.h b/migration/fd.h index a14a63c..94cdea8 100644 --- a/migration/fd.h +++ b/migration/fd.h @@ -16,7 +16,7 @@ #ifndef QEMU_MIGRATION_FD_H #define QEMU_MIGRATION_FD_H -void fd_start_incoming_migration(const char *path, Error **errp); +guint fd_start_incoming_migration(const char *path, Error **errp); void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp); -- 2.7.4