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Sun, 13 Dec 2020 12:48:22 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1607860102; bh=6DbTaw2VwDiRnD4UDckkIgL0bd5JpZKh2v4ftCcY5Yc=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:In-Reply-To:References; b=i45z+I2QWBy9oWzABVCDoqax0S5qUApWhP/8PW3u3eiA1jGxyFDUzl4OZXocLQ5GG UXeISN4NJSgepi+K+ZGvER5wwjxIS0iLbWES3Ok4b+T/Y+TUqRyCLtxoov+YRT63CY NVKU3ug8siVawN5IrnB89DYtfVDS0gjLzFSWUiHU= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Date: Sun, 13 Dec 2020 12:48:20 +0100 From: Lukas Straub To: qemu-devel Subject: [PATCH v12 3/7] chardev/char-socket.c: Add yank feature Message-ID: <59d7fbce1687606de93cc69b7755ac80ae6b2eaa.1607858747.git.lukasstraub2@web.de> In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/hyfVtZ+ZL47UfVBeLXa4c46"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Provags-ID: V03:K1:i+89IbMWfHLeMgXxLRdMfPielK4eugir5vwoir3zh0Fn/gcrJ/L H/6tapW6WZomlQcBbRiypzOoJubuTfGH1Lm+1bbz2zKTj/xva/lHYlo8hg9sJf95ATKh9NS x856YLtg7YnSic/6zl59zyt1Fv6PgPoVXOMamgRV1PntQlyTfakXuviFj/CnXCBpNW3dWhE Z7EitcWg9BZMaMBoAl9gw== X-UI-Out-Filterresults: notjunk:1;V03:K0:0zH/XOmHgpc=:Dhr9XqPDaZokElNgcF+l7J 0aFLLs2KT03f3hy7DYa+OpiyqNf4/RdjafsSmeybNXcbf5JV+ytoS+upeP2Oi6CFEVCwbByhb iR9dLWfYcB+q1Gx504XVGF14R+kRKMJ6d/qwgETThEAf6b+2stddApTxRN5FWYwK5HdrWm9BX e2Kt0d41Pan2AIFhONq5F2J5+3Qba76k7gGzR5rS2ppIHt5EDo06YZzuEf+0yNlDCD55yiqAQ lZRfiovyMINxJ6afC7xhODUQfm6cxWHmfZ31vQW56pP7bXNZyS3qEUT/4nWu069+iVnAYY1wQ nj9X3c5gsZ5/AMdwyb2tQ/e0yPS6aGYDVCmgTOATWFkoYNZQmRfwMmm9fgObYaOPdBWbtJEyb mLfKv/DddMueWrCSy++6qXDpw9mvSxTPhodb3pOaxTD2Hj6ACQEZHygKw2pNy3KFNCxTL3sr3 vgf8HHsXUlIPRPNqexJWAG7yjk+gyF2b+S7mQ3dSpGwDLDC5jsjBbEDBMBMN0czFwdWdClezX umrZbamQYrgn27mU5NxkCIG4+gvh7Ow+KizIHVIMEsGkQAz/Opi9b572UQV9cGwdtFlpiRAPj Y1/Tc0MH60Mr0mxtLUIZEzVkVhH4GSzPrGntGv2RIpx6IK/h1rJOpCv4lUwMkHZiHnYM8k7LO wDcy0soKnAzQBQSuMDHAfgx8cLvmhFfrLF4QL4kxfBsrbaq+QL5zg6I3Rn11hqbAxY4aYRjuM cLmEF49L0Ib+oY98LcAWf3j0SwMY+mA5/i6lEhGjD0mA29Ki1j+uv/VQBQHqpX5Ml0yNIO3Yx 9QtCPqcr4GPYDXajqeOzEImfthu/FsOeC4cbdeW+46ZvWySKhSIRlWE8OZEzuCC43wDN+WvNt uXzBUFq28DMmewv6Vh/bNacb51NEFAact4aUSP2vw= 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 213a4c8dd0..7f2ee9a338 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 +1405,12 @@ 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_/hyfVtZ+ZL47UfVBeLXa4c46 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEg/qxWKDZuPtyYo+kNasLKJxdslgFAl/V/4UACgkQNasLKJxd sljA3Q//dAynw2xidgX7ieLrClplvwm74ShGQeX4w6MNV9OWCNb0CQA8zCuY46DZ wQq+ctkAE60Ny7TEaxGH394LIMKVl185eAsVxtaaT4QGxaqimtwJb17lXA86HsR5 fTOvtzqJSndfA7EZXoNi+LIRUM1wVW6QE+HTBYtlLKBrG8GLNT1pYfUBfGZtgD8Q q9hpQm9ducOXA6JGFuVkfGKh2kLCFravM23Zs+Bj06YQtqxW9sdP0JecR45xMC7m eAVxyFwCjayK+3wClpIzFHBXnyRRF2tlkKrPC7MyOrRRazAGubjCKDtpWfajt+up XzRq4BB5UKl5a4fM0F5b5bgi/ToadF879R21Pikd6FuxdvuIGjT5/eLwPC6g5nI9 0YM9f10nZNPgwipnfK2O8kgByaKYWujMgqCLL+6Am7BVj2Hs9FNrtka3DW4tvAMG LuL/sucZl+ojT0sZdhuum3xvZWTihv0IgaPz/ni0D+xfpARN3X//rr0Mr2gfqYm8 94Zh2tgxZntPgHca00zbIgo8618UKrN3kFSNfQXK7M51/WoF3fSeUnJIxTSZhH2H X9mgBlYuMvhuve1CCAcJGU2aNpFEMcb4CI4MRugDygV30z1BH+yEsb+PtmQOCvEU tPU0h7bhkGR+9b/KCFewGFUuFbhrpN/+YRwxyIvkCchbqbkSdUE= =bE8a -----END PGP SIGNATURE----- --Sig_/hyfVtZ+ZL47UfVBeLXa4c46--