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Wed, 28 Oct 2020 19:45:26 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1603910727; bh=wTPWPv0O9og9MhcjtUCWN563ETwPiVJdFxQBrN5ctTY=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:In-Reply-To:References; b=I9qDsrFDli5s9FQmdMTgwsCi51MWSgANimoQ3hTWvrtgas/77WE4DFVZ1Ik4Dr23+ AS7dMBZT9S4NpBujzhZoX66s85f1udDHc55Hkn2vB0zjWhB80x7NL3ADWpYr7f4176 7chcIVezaDXlUyTuXvo5AQsGOqCdtGF3ye2FrI9o= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Date: Wed, 28 Oct 2020 19:45:25 +0100 From: Lukas Straub To: qemu-devel Subject: [PATCH v9 3/8] chardev/char-socket.c: Add yank feature Message-ID: <36cd86dc7ee9ce7a95562e5ba4d990db176f9cfd.1603909658.git.lukasstraub2@web.de> In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/52YmmXZ_s4O488_Ozaz.paR"; protocol="application/pgp-signature"; micalg=pgp-sha512 X-Provags-ID: V03:K1:zVAgFhZg9M4yaT6Cr8sp5Lri29Wm582jv4nBZr5JA6xQyG+stzs ZOO6Y948qqMG84gBpKpsNtBkEHkVfPblyM5B3QZfQItiRCaKNS2/qv7T66gvMHFAL+7n5vI 7O5nOoJXshY+GzTThq2ASn3nbg80/TPpxEMv5yhB5mgNdXjEJDGrLJt/JLVQyXcKkWTqdMa wqTVSgiToOBlh9pw1Y6sQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:iCKUJAZipsk=:2WBoTBDDHSGad6N/qWe6EY y8RCWTMlMvdk7YXXJYbfbEAougDl0OmxjsGk6HLCJvUTK8jJJIP3GWWSujRLDZtQmSYZuT89u r/vWH6oVr0lHI9zoPLaKMTVlc/izDZL7/dKSORAs7GADaNfQ14V3tjihJKqRefPPV1KTU0cxd nEqsrwvI1DH5L3sbe/3pazC7QVZqQhiqkmSD7NpNhisvbfmp0E6DlMnS94Gyp+9BccGeg/8Ho U9MUF+U3xhuii+k9B/vdZBC63zOo1C9MInxb5ewm1CpURiHiYQitrmKYGzshbSxKdmPlYBWgA xzlOCDbYOTtf1VsnHwKEqTJaeVSY/DISxTJl3dDuH1cYFkSIo+bg5aQvK39iUa62GF1p4LdTg zvhjPZAzgRzE1hQYK6av0tyRlmpe0GcBIO45DCW1+gBJvIJjl7KbM+Vq6R9DnjyOGm4Wega5l MkOf6uyGE3KrBryU17YZZBGH/Blo1Vxe4SsJ7z4zIIyrSJm2kAQeqUZ7ofPldOIWUbkLeUvBP 7gkQJgfPZ3Tfs8sJk7kOhDuG573pPtynZ/6DVzELnPHtiq8nhKJwknBHrz3pQsU8kP3Ok3jWn 8AInwwlkuVEYf16sL/SvCFyHNU19wmqwzFl1lNJohHnolwIR6FcASgQyUXM2OGsIE7YW6APQS SvMWgpnRcOx5xASk+4GNprUTisZAX8axJ2btp1ywdzs06S/HyMl/AJ8fA/V6TKfDb7ZGLXqRH XLL8L3YQ8Qaqf4xUt8i1HzqcNGboleEo5gsSSY1KnNORc7kj6JKIkoCGoHYfyKJcl0kUG+mv9 X3rTUFzJfM/UEXQeEc0bRgGOIrDJTMwN1zYmcjOHI4VPUpVJThWu2o2jDrsoGBPxV/Va500PP jkwIWxlVyCGV3Jwxsivg== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Register a yank function to shutdown the socket on yank. Signed-off-by: Lukas Straub Acked-by: Stefan Hajnoczi --- chardev/char-socket.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 95e45812d5..5947cbe8bb 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -34,6 +34,7 @@ #include "qapi/error.h" #include "qapi/clone-visitor.h" #include "qapi/qapi-visit-sockets.h" +#include "qemu/yank.h" #include "chardev/char-io.h" #include "qom/object.h" @@ -70,6 +71,7 @@ struct SocketChardev { size_t read_msgfds_num; int *write_msgfds; size_t write_msgfds_num; + bool registered_yank; SocketAddress *addr; bool is_listen; @@ -415,6 +417,12 @@ static void tcp_chr_free_connection(Chardev *chr) tcp_set_msgfds(chr, NULL, 0); remove_fd_in_watch(chr); + if (s->state =3D=3D TCP_CHARDEV_STATE_CONNECTING + || s->state =3D=3D TCP_CHARDEV_STATE_CONNECTED) { + yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(s->sioc)); + } object_unref(OBJECT(s->sioc)); s->sioc =3D NULL; object_unref(OBJECT(s->ioc)); @@ -918,6 +926,9 @@ static int tcp_chr_add_client(Chardev *chr, int fd) } tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); tcp_chr_set_client_ioc_name(chr, sioc); + yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(sioc)); ret =3D tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); return ret; @@ -932,6 +943,9 @@ static void tcp_chr_accept(QIONetListener *listener, tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); tcp_chr_set_client_ioc_name(chr, cioc); + yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(cioc)); tcp_chr_new_client(chr, cioc); } @@ -947,6 +961,9 @@ static int tcp_chr_connect_client_sync(Chardev *chr, Er= ror **errp) object_unref(OBJECT(sioc)); return -1; } + yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(sioc)); tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); return 0; @@ -962,6 +979,9 @@ static void tcp_chr_accept_server_sync(Chardev *chr) tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc =3D qio_net_listener_wait_client(s->listener); tcp_chr_set_client_ioc_name(chr, sioc); + yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(sioc)); tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); } @@ -1072,6 +1092,9 @@ static void char_socket_finalize(Object *obj) object_unref(OBJECT(s->tls_creds)); } g_free(s->tls_authz); + if (s->registered_yank) { + yank_unregister_instance(CHARDEV_YANK_INSTANCE(chr->label)); + } qemu_chr_be_event(chr, CHR_EVENT_CLOSED); } @@ -1087,6 +1110,9 @@ static void qemu_chr_socket_connected(QIOTask *task, = void *opaque) if (qio_task_propagate_error(task, &err)) { tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); + yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(sioc)); check_report_connect_error(chr, err); goto cleanup; } @@ -1120,6 +1146,9 @@ static void tcp_chr_connect_client_async(Chardev *chr) tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc =3D qio_channel_socket_new(); tcp_chr_set_client_ioc_name(chr, sioc); + yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), + yank_generic_iochannel, + QIO_CHANNEL(sioc)); /* * Normally code would use the qio_channel_socket_connect_async * method which uses a QIOTask + qio_task_set_error internally @@ -1362,6 +1391,12 @@ static void qmp_chardev_open_socket(Chardev *chr, qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); } + yank_register_instance(CHARDEV_YANK_INSTANCE(chr->label), errp); + if (*errp) { + return; + } + s->registered_yank =3D true; + /* be isn't opened until we get a connection */ *be_opened =3D false; -- 2.20.1 --Sig_/52YmmXZ_s4O488_Ozaz.paR Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEg/qxWKDZuPtyYo+kNasLKJxdslgFAl+ZvEUACgkQNasLKJxd slhGCA/5AeV1MBa7x3hqkM+kqYv0lYCWeP6TsQr95JjGiwJFJgLsvLBAdMV9zde8 1Kuyyz0xWoc99258J3UT63A7OH1DI9/DK5tbrHQylWRTB7cFlqqdLfn4VI8J1Irg gqPiB7Qd+BRZEvZLOBYziZrE37JGyZpyLvUxh01ypqtN4m+803X1OqX0BQxDgpNz vE5ZFWgjsXHNjzBPaKGueFrf8GAx8xWZFu5Smf/m/9byetxX28YlBTklBr9WLJhE RvjiFC9u44z3/YBiNiKPjzbAfFWrbWbHLF3S3UsD/8+ij32aTeTt2EJy8yypPmif z0bIFJa6BQc+Ago/kk3BxWaeEzW4GMldzvrz4p/FKX0dHy7Fsen+RWzWvUZwurj6 Bkh4NJZVO5IJ6mPGdEk6DdDOLDBg2YAAl9vXQNFhkwxEAlFLMbs9JobOzExREb+k Q3yHGIMz4YLe6iJ496vnh3o6aVZLjG7ganFDinbum9OUua7SmDP53+thOUrgmRwb XMUx2p9Z6jVHOMlxdSdYvlpYwfHeGIhqYDFyHY7Dwy81LEUcbPVj0A3UfZPcqSQ5 3/O8uS361pa9tsGBTeyieDe7qfBUO6WZuu4Ccp5TcImUd/9UJJTgte7xT0JbVjIf ql1W+1poZneiEUk4QujFrYVa9en8ov8zREOfUW2P4BKoP15Qt30= =D7Pd -----END PGP SIGNATURE----- --Sig_/52YmmXZ_s4O488_Ozaz.paR--