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Mon, 11 May 2020 13:14:42 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1589195682; bh=KUWMlVMntn3U1nUaS+EoCscEK7fr6wH8WZeZRn/C7XE=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:In-Reply-To:References; b=KLqskJKV6otItMdDFp3CRHcgzVnGX62cdARHWDWp9Wqb33VEFMm43Q9hC0F34zKBy owXoUCQ00wcmP0CCk1VOyM6P65xpbpRWle+h34xux6c1OxEWF3nj1NomPqv3gepkok xBlNTXkc4ego5pmZsdKLjF7v27tcZY5TE17ySYLo= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Date: Mon, 11 May 2020 13:14:41 +0200 From: Lukas Straub To: qemu-devel Subject: [PATCH 2/5] io/channel.c,io/channel-socket.c: Add yank feature Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/+Z.y1BF4DD61=sLH0F31ie5"; protocol="application/pgp-signature"; micalg=pgp-sha512 X-Provags-ID: V03:K1:7Czdz+grKSXvHO3K5q013O5YYv+f/v+3lPiUpo3O1Z6jfnVFweG jkEvCFjB+M17hCupvgf3oMcvI3jTg1B1upcBEvPUhWivjxR371rsOdnMH2Gx66h44LIAMlD u50BxUBlufpE5XtVcTCSQaYnAUnyScRjRkAHsvdjwEP6CqHhrcMdE9zj41zZ0lZNmnDSt6R uEpnhIxBzyJZX39S4mXjQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:e6NH5ealTW4=:uAgmTrfDC88JrPoaVp7i8T lMmM2BA35dIHHF0kciOSvmPmgODxNE4ILjvk9ktLC8WNxopUyoBYOgUe24sN5aCyNxcbcPKWB LNBqbep5i/oZewtH6NUDxDQtoiXItmPV/71c7f8UTRhCRY0rrlVgRYeM2LUJuG+JOkJUuZKmv fQv8C5qItxRZXGRVqiTHaU9raK0wQhwC4f6MAzztpgG+7N/wYQfXHEaFBS7g3jC/VF2F28Ddg el5yqeMnYFkzr4+dr5v53cpho7DZqE+9N4T8nMLkl4srQX/vY4Mmufii0UY7Lr8CI9EVx5X4n HAJsnM91aSEe8jU3Yrlmvr6qBLp6L4PMt5Oo/V0qzJCucsziPIB1tFtnLXeThKmyyUjEaVAJy tKIOvK/7I7urkJ8qd/HlxgcF4jxfb3r6U/dCKEIOuASmqFg8Eys9FAghiqejYuz14q60F9V68 w7Rw1HM//4QrKNf3SrGJwDxgZECbWEFRtFWmTS7YoSwrof0Po8TZTImiWk8kNziDmOX4KpjHM XhDiXYxUWgoYEvn4YOWIZOckr2QKBCzBjKFMxLeik2ad6MZu8kGZ6NLBNbaMACLpQedmXQejT KvpIsk+dRixCefEMGCTTlbOJOSp1YXaT/7E1LK9vK1lriFZbogtueOxDPRtBn04FWvg1e0C1/ 7NYITPg5JauQy6lBvE3CSdb57rLuqzpe11z6A7mvzMGZvnlgnbw5Bo4eb8aA0oNjZjo0Pt7Eg 2P3OEHTsz/atcMXtW+tUfZbv04r9LCTW9oulVTF5supLZG0F6+SwqgsFGpqv8ohItkk3g8wu9 /HyD8eoatkxKzFXQqQdJcVU3ULm5MApZZADX6DMbp7VplWycAOBRPEJ4DKbkkMVJcorVweUuX 6Hg12tOnVVnZtbUS2sS3NPEdY7HqF5LBFCbhvmmOwrGs+8DSlVbExnxJLkiv5Q+E8KwVekN2R ffBdn1DBCUOKqhZ7X/+BBdb5fjg1F5ffIu2O604iwmOBWBmTS0DzJTlDO7fCce16M9xXisQ23 YAxxZRKD78yFWT/7MEBn8DRPiZS9aqClARzUJ0QHYd8M6LjAd8DbSUdtTkFmuvL3+Brda99wO 2+pmBFy7Z7qx+GvQq8uMMPhIAybmfAs7fm9T1JsVkBeSbnAS0mnVPR0+IbDIEfWSk3rNDNcE7 lu25fibwMtVg4z2/jR4cJr1nFbcNU0atMUQ6jlL97PKiC1k50Qyz1/3ZZqK1h4jbVnl8Pg9HY YayNkdCDNWOlV63Hd Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.227.15.3; envelope-from=lukasstraub2@web.de; helo=mout.web.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/11 07:11:00 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , "Daniel P. =?UTF-8?B?QmVycmFuZ8Op?=" , qemu-block , Juan Quintela , "Dr. David Alan Gilbert" , Max Reitz , Paolo Bonzini , =?UTF-8?B?TWFyYy1BbmRy?= =?UTF-8?B?w6k=?= Lureau Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-Zoho-Virus-Status: 1 X-ZohoMail-DKIM: fail (Header signature does not verify) --Sig_/+Z.y1BF4DD61=sLH0F31ie5 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add qio_channel_set_yank function to channel and to channel-socket, which will register a yank function. The yank function calls shutdown() on the socket. Signed-off-by: Lukas Straub --- Makefile.objs | 1 + include/io/channel-socket.h | 1 + include/io/channel.h | 12 ++++++++++++ io/channel-socket.c | 29 +++++++++++++++++++++++++++++ io/channel.c | 9 +++++++++ 5 files changed, 52 insertions(+) diff --git a/Makefile.objs b/Makefile.objs index a7c967633a..889115775c 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -24,6 +24,7 @@ block-obj-m =3D block/ crypto-obj-y =3D crypto/ =20 io-obj-y =3D io/ +io-obj-y +=3D yank.o =20 endif # CONFIG_SOFTMMU or CONFIG_TOOLS =20 diff --git a/include/io/channel-socket.h b/include/io/channel-socket.h index 777ff5954e..0fa7a364f3 100644 --- a/include/io/channel-socket.h +++ b/include/io/channel-socket.h @@ -48,6 +48,7 @@ struct QIOChannelSocket { socklen_t localAddrLen; struct sockaddr_storage remoteAddr; socklen_t remoteAddrLen; + bool yank; }; =20 =20 diff --git a/include/io/channel.h b/include/io/channel.h index d4557f0930..782b618694 100644 --- a/include/io/channel.h +++ b/include/io/channel.h @@ -132,6 +132,8 @@ struct QIOChannelClass { bool enabled); void (*io_set_delay)(QIOChannel *ioc, bool enabled); + void (*io_set_yank)(QIOChannel *ioc, + bool enabled); off_t (*io_seek)(QIOChannel *ioc, off_t offset, int whence, @@ -550,6 +552,16 @@ int qio_channel_shutdown(QIOChannel *ioc, void qio_channel_set_delay(QIOChannel *ioc, bool enabled); =20 +/** + * qio_channel_set_yank: + * @ioc: the channel object + * @enabled: the new flag state + * + * Controls wether this channel participates in yanking. + */ +void qio_channel_set_yank(QIOChannel *ioc, + bool enabled); + /** * qio_channel_set_cork: * @ioc: the channel object diff --git a/io/channel-socket.c b/io/channel-socket.c index b74f5b92a0..be03946d29 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -26,6 +26,7 @@ #include "io/channel-watch.h" #include "trace.h" #include "qapi/clone-visitor.h" +#include "yank.h" =20 #define SOCKET_MAX_FDS 16 =20 @@ -55,6 +56,7 @@ qio_channel_socket_new(void) =20 sioc =3D QIO_CHANNEL_SOCKET(object_new(TYPE_QIO_CHANNEL_SOCKET)); sioc->fd =3D -1; + sioc->yank =3D 0; =20 ioc =3D QIO_CHANNEL(sioc); qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN); @@ -395,10 +397,19 @@ qio_channel_socket_accept(QIOChannelSocket *ioc, return NULL; } =20 +static void qio_channel_socket_yank(void *opaque) +{ + QIOChannel *ioc =3D opaque; + QIOChannelSocket *sioc =3D QIO_CHANNEL_SOCKET(ioc); + + shutdown(sioc->fd, SHUT_RDWR); +} + static void qio_channel_socket_init(Object *obj) { QIOChannelSocket *ioc =3D QIO_CHANNEL_SOCKET(obj); ioc->fd =3D -1; + ioc->yank =3D 0; } =20 static void qio_channel_socket_finalize(Object *obj) @@ -422,6 +433,9 @@ static void qio_channel_socket_finalize(Object *obj) closesocket(ioc->fd); ioc->fd =3D -1; } + if (ioc->yank) { + yank_unregister_function(qio_channel_socket_yank, ioc); + } } =20 =20 @@ -686,6 +700,20 @@ qio_channel_socket_set_delay(QIOChannel *ioc, &v, sizeof(v)); } =20 +static void +qio_channel_socket_set_yank(QIOChannel *ioc, + bool enabled) +{ + QIOChannelSocket *sioc =3D QIO_CHANNEL_SOCKET(ioc); + + if (sioc->yank) { + yank_unregister_function(qio_channel_socket_yank, ioc); + } + sioc->yank =3D enabled; + if (sioc->yank) { + yank_register_function(qio_channel_socket_yank, ioc); + } +} =20 static void qio_channel_socket_set_cork(QIOChannel *ioc, @@ -784,6 +812,7 @@ static void qio_channel_socket_class_init(ObjectClass *= klass, ioc_klass->io_shutdown =3D qio_channel_socket_shutdown; ioc_klass->io_set_cork =3D qio_channel_socket_set_cork; ioc_klass->io_set_delay =3D qio_channel_socket_set_delay; + ioc_klass->io_set_yank =3D qio_channel_socket_set_yank; ioc_klass->io_create_watch =3D qio_channel_socket_create_watch; ioc_klass->io_set_aio_fd_handler =3D qio_channel_socket_set_aio_fd_han= dler; } diff --git a/io/channel.c b/io/channel.c index e4376eb0bc..0c4095e0e0 100644 --- a/io/channel.c +++ b/io/channel.c @@ -373,6 +373,15 @@ void qio_channel_set_delay(QIOChannel *ioc, } } =20 +void qio_channel_set_yank(QIOChannel *ioc, + bool enabled) +{ + QIOChannelClass *klass =3D QIO_CHANNEL_GET_CLASS(ioc); + + if (klass->io_set_yank) { + klass->io_set_yank(ioc, enabled); + } +} =20 void qio_channel_set_cork(QIOChannel *ioc, bool enabled) --=20 2.20.1 --Sig_/+Z.y1BF4DD61=sLH0F31ie5 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEg/qxWKDZuPtyYo+kNasLKJxdslgFAl65M6EACgkQNasLKJxd sljo9g//W+2343YJ+TbDPBooBeKFlJqOVcz1lAaJNefEdIQ1g8XfdTmp1IC3G3B1 snWrRVXb8ShCeW3fEHyiZoMkrkZ4m9wPvJi8jbcvxjurc8KKQWC1lnxTK2Vl9wqJ FgrljFaeh6soK9o4qVvAWa5oltmAJsEo/9xItWPVBBii+ct2yF3rmlAgS/gAYhoo vsPgyNyUL9Ioc7mdTqWGPLgn1o+MZ0ZhsImyVKWQeJCrJDkkJW6aVqDTX5+DhD6+ alRRdU9kChfCF08/TZtthlnnLTsNJh4sn8jk0CDcszIatq469OKNI/HLKdQDCBlL rLNTIaLX63yDfKHrTV5OBXU5dHSl7oU0TMyKTuYF4MgMaBND6KRZYzqru80wsJ4k BXH6qq9gP/4SjiW7pghzYUBjd8a9mIK4gvHJhEQqRJjvEZXkTjRSMO9Kq3nex70G NboLA4ey2bHVVXG+UWH2VdrmVNxJE5uuyKKw7Cgc4+j6MWGfDswnHUpi4VCCJLoj b0DQmqDTdRMYOo7ALO4vXCkxMdPTkb5wdhF51x73jWgj+i8CgwfyivtrdKVRo/sC vmoRj58MQ8DKmzdueOINNn9WvAI46F+p4cNuJRsjmM771s6kklAfzUOAlrCWy5oi O3ZxDXVWW64xLRGUgvOzCdy7jNNqcbXrZb8PeQi4ip+UPNyqKus= =jpRL -----END PGP SIGNATURE----- --Sig_/+Z.y1BF4DD61=sLH0F31ie5--