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Mon, 28 Dec 2020 15:58:44 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1609167524; bh=rdd77FcqNCutE2kHAJBRJCbMv1+7m5qLzrH7zZjBrOQ=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:In-Reply-To:References; b=YKDAC77zs/ZEOyM72L10tE+qpy9tE9fmlUOF/2IpnbkYPfc+LzJybuKKj3nEVdYTV tjEV0OJm87+jRmiHhw7Rh5ftSKlu+4TmYuqC4Ygt1CH266opsAaOX6zMPUq92tM8VD V418M9IvZ9RC0Jtja7aVC7rczEv3i82CiFyxtK+U= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Date: Mon, 28 Dec 2020 15:58:42 +0100 From: Lukas Straub To: qemu-devel Subject: [PATCH v13 3/7] chardev/char-socket.c: Add yank feature Message-ID: <9db0fd19a99e1dc7fd6e612fe279716233243b14.1609166587.git.lukasstraub2@web.de> In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/RLan_yhHKjNO8sw.RsoZ1YH"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Provags-ID: V03:K1:mNnqpqSLcVNNstD50aqEZfKE0lMAq7FVK63IGtfTl4O63IUXCJF 780B4bM4asv3N55b2+ggMZX3rLM8a2BmhW/g6vLa4A1E4jZJqEyaSj/RMp8DG6sOqbqyG2k hb6RJcBe1Mgg51yzs1ruhhdkg8qC/74UDROPlvmoyX+KGsKaEY+9JtHTZbMYLjMzDvL2aSX +x/OZL8zL73eAFYeU+ZOQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:xuQM6I52PnY=:Ho4WxRMJp1UblYLT6fEPm5 RA8gdrjj/Ku4loyGFavBP/PQhEQc0atSoxJSJk45zGVH95JJWH3C31VR08A+B1Admj6mM8j8x yV8r53tNbKm/TlRo1e9afyc6kvpqH6ud5quMcNsn85vW93bfbItyQkZvQyHMT2z+rozHSJFjx bhK7gN97H9i/YlC1LMAKHKLrzc+1V612yNqZT3ZA3ZZ9XMAq6hzcFlEyEX71txi6hQSkG3HaO fdZc2/X9g0lqgC/awkmsgK7+wq6Xj+TlyRWmcrjtG8CE3PGqRdzlmS84ynPNwLZWJDTstLRVQ 2ueaR7HxYmkKKuD2pfPlDwWqOeamot1Cn5Sdt1XJIfRVZpkTAx/cPKdCj5z0QD1rSKAqn2GQm QmkoJIsbNeuVGt0UmuIQWagjhJY4JRlYrONnIeE+Fu9K+CNMylqdDe27zxfxwbHFDHHtCehs9 6Xinck+50EiY6FKKLmj1jeNQBzrjPNaJSmXy07/L09yeskTjHJIKOxePFqNFMbMciuicM7Xsr 2vuDSAfYsFWtP51ZC3ecD1shtV0/s+TDKusmTEC8ME5iGVRC8UcAsYiq4AIunyi2RYEaC/Vgv HgloNoOWCC+ggef4+byZ/ttq/iaz6FI/0/Fo70KUaAvB5Kw+7uqr+3clSmKdjmwFHx5HOc6NM LvLk89zMPONA/Wa4F4uKbaNJ9THtkkOCsIRZ0KxkSVMfl/rvlCTiUGv0eEOA6HL1c8bYydJxY tQoX4M0qHF0FjCVwSPjpWBiOaCVuRQ36d7x35zDLk6YwdtUSdjrx9EHssSIoqZI74GHzMhoL2 RrKe0CGaHWMqb9J20W9En4pV/Sv3GE6/99d5yfv8rg4RRjJhzgY1B/CsCJHGrwH8audbfOGjx KUVIR1qBFZqLnvCPxbZjcqPlAA33QCc2a9XUrbaUA= 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 | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 213a4c8dd0..8a707d766c 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)); @@ -932,6 +940,9 @@ 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; @@ -946,6 +957,9 @@ 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); } @@ -961,6 +975,9 @@ 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; @@ -976,6 +993,9 @@ 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)); } @@ -1086,6 +1106,9 @@ 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); } @@ -1101,6 +1124,9 @@ 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; } @@ -1134,6 +1160,9 @@ 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 @@ -1376,6 +1405,11 @@ static void qmp_chardev_open_socket(Chardev *chr, qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); } + if (!yank_register_instance(CHARDEV_YANK_INSTANCE(chr->label), errp)) { + return; + } + s->registered_yank =3D true; + /* be isn't opened until we get a connection */ *be_opened =3D false; -- 2.29.2 --Sig_/RLan_yhHKjNO8sw.RsoZ1YH Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEg/qxWKDZuPtyYo+kNasLKJxdslgFAl/p8qIACgkQNasLKJxd sljFrA/9FU2VviIBIypuyHVorTGpxE08NZ4nmyZWuVf2e508X8W1+bq9wq2xydpX OSMDa3RD72zpLdMOk3+m11LIF0LCK+pOtIGLXS1lj427u2ukaexuHpT1cS2B8jXH GaPvPCHRoguURGs5l4Z5qvY6OrOukn9acyY1lwQVpy/yPV0BJpjuH9beeXjCVEL6 fCC0+YofeYEdua0VW2mjqqYQ1llGypVpSYxU6ejqz/ftu8ShYdr9XT3bluLKl5ep ddJzDJie8EG5rFPCl2rdpnU3XBuOMss+Ow+5OhRo+4K1y9gOrBklVk7JocFg3r67 fz+KceqBRrYSwuLUksZeSHpLBacLHvf5Z/MYSPhL0qp/XM+YtdJf3Zo72byoUngw IbbqRqLVQwiHjZmjzWTZ7VZTaV/9M3/RAm4DK2sCSwR1WldpzyJ1Mhtkw24G2X/0 KJBHOc9SN2mntTFL8U76yhHrBQTGL1C5PsPuVCMFxqe4BxUYBn1uQi8g1TUWG2Ud 0HhM9lfK+d1LCyMuxe19B82erGoltTeiE279zjxswxK5ki+33OQ06lXnoeFPHzGJ km88+1bopvDn+NMwF7oRh5TiPO535zqpbU9IqWPHE/2Lz9UtD0+VXEl6twB+bJDA dGilzT4Dqf7okuIPKbXHo9wtNnyyyvKgwoWEQRvYFhHmEG+q/ok= =R/1t -----END PGP SIGNATURE----- --Sig_/RLan_yhHKjNO8sw.RsoZ1YH--