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Fri, 31 Jul 2020 11:26:43 +0200 Date: Fri, 31 Jul 2020 11:26:41 +0200 From: Lukas Straub To: qemu-devel Subject: [PATCH v6 3/9] chardev/char-socket.c: Add yank feature Message-ID: <6c504d77050ff2f944349f98c4573f388145969b.1596184200.git.lukasstraub2@web.de> In-Reply-To: References: MIME-Version: 1.0 X-Provags-ID: V03:K1:yBLacbn3lFKMc3KzTt5HeRK54fyw4cNb+ZqAjqo9WTWV53c42rG ZOmzguwacuRymgJlE71sjCTP/9lJISLSobRhyF4AHdR9R+8drfrUUOgyOagwnQ4c0glMdDU 1bHB/kNUMlJlHX35eB214DIOWuw7R0ibPVoBHgh80N40rMM7aG8LfUIhU2nZ4vdUrivmLwh 4OvR97hgJJ475L9vXM7ZA== X-UI-Out-Filterresults: notjunk:1;V03:K0:h4E64QrEYh0=:a+AM15jRaeJrP+/AlkA37l XITJInmmtOtXrcHVi5moWF6omKBEx/xaEBmzyONtqa71cTqyf0Ikl3cl170cEXagW4XyX1pNo pDwgQ5T02QTM/2HdT/SLpu1aSY0/T2PrJEiwLyKeY4KPOSOLasUve7NJlaLNLbsq0lAW/lV9W nCip4+aoAM525UrUYQdhMqhpRH89lBzZ/sZWjyWdApo+AoP1qZpiDUPbOWm7fh5Bxs+MPZfsp nKbAFX9eM5C0SrWGFsyJb9A1Awp6swmyOMmof14DX+tMFPqdsmvXSmqUKviDMJojdu/DU3MXQ KmlyQClONz6ksg7EDju3hxHpoij01cHI57bAATipF9ngjFcgedKaLDVLaql9+tz0XUk904FF5 /R/l98b/f43ibdJX3KKwL99I+X44S1DRM3DuK/E+V0M0CT1uMp0JYEdQzwh29dCoEQRXzpj9v B1MQpPKmMNg+J6GE5JAw7hfwxSF2HDA0MxhZ1IYDb4G3hj7pIAIL0uqikXz/2J/IOJE/qrtzU kyW9FKsJOYscJ2zAV+C2AKC3jYFdLgBaxe/+Mfe5R5wXr+1gUlKtmn81sRO0T4madXDh7ebN2 IdKsmOfypdAdXZUtsNW5X6TjQ1pxXvlzEo1/dH+qsWSvpg6/KR38bb1xd4FW7WtNbSvWzrXyI pQf4VSvoC1/gEXoeMcuAQ1p97xFZc4/NFGzZBMjXcKYxoIVA23iKAdZiQJw4MDUUGHN+QgQGD n8Qv5mWMS8Sab1gsNSjT/oFomVsRdFH4kkKv6vdFXrLgJrFtXLixRAC0sIz0LHK5J/qAeV3n4 zxjDYwP88WLmkC6TokcuSA5Bf14oCo8l8fOYPVrmqout7jPL+xwWbNO4cpdXnIpgZyZ5Zv6j9 6d6QWpMvcBt0Tk7deuMA2E1oFfaYtJMZxtsqYy0AECaiIDFv3PTVFZPOxGjN/W+Wbsca6DuOs bcWRmlmzJljc4L+usSQJnCk4Kic3drzzMf9yAILhrXF4VCKqWwwiAnw3T1zILNLTY/1AvFNYx GrWAjQRD89XlhkzggO1tzoJM8311bJDP1f2THGQaICW9zoxniuCHCUeoi4ApUok5W8Kdj1idf F0jGQHj5mU82J0wnZAmHnlDmdDtlC1suSQmivJKmTUJy+0dwCEfdWU86c5PQSY7ERqqbvDJ1c jP/Ei6cLBjPz3fuYC9JqDP7Cq/p1bQQpKfGSKlaPVPN6EH3lTROWZd1CynXka3Qt/rjT1UTQu UkBOfTL72UmT66sEUsgUP6q/DIr90HROin59FWQ== 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 = 2020/07/31 05:10:35 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 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=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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?q?Marc-Andr=C3=A9?= Lureau Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Register a yank function to shutdown the socket on yank. Signed-off-by: Lukas Straub Reviewed-by: Daniel P. Berrangé Acked-by: Stefan Hajnoczi --- chardev/char-socket.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) -- 2.20.1 diff --git a/chardev/char-socket.c b/chardev/char-socket.c index ef62dbf3d7..c0ce4dc606 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" @@ -69,6 +70,7 @@ typedef struct { size_t read_msgfds_num; int *write_msgfds; size_t write_msgfds_num; + char *yank_name; SocketAddress *addr; bool is_listen; @@ -413,6 +415,11 @@ static void tcp_chr_free_connection(Chardev *chr) tcp_set_msgfds(chr, NULL, 0); remove_fd_in_watch(chr); + if (s->state == TCP_CHARDEV_STATE_CONNECTING + || s->state == TCP_CHARDEV_STATE_CONNECTED) { + yank_unregister_function(s->yank_name, yank_generic_iochannel, + QIO_CHANNEL(s->sioc)); + } object_unref(OBJECT(s->sioc)); s->sioc = NULL; object_unref(OBJECT(s->ioc)); @@ -916,6 +923,8 @@ 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(s->yank_name, yank_generic_iochannel, + QIO_CHANNEL(sioc)); ret = tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); return ret; @@ -930,6 +939,8 @@ 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(s->yank_name, yank_generic_iochannel, + QIO_CHANNEL(cioc)); tcp_chr_new_client(chr, cioc); } @@ -945,6 +956,8 @@ static int tcp_chr_connect_client_sync(Chardev *chr, Error **errp) object_unref(OBJECT(sioc)); return -1; } + yank_register_function(s->yank_name, yank_generic_iochannel, + QIO_CHANNEL(sioc)); tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); return 0; @@ -960,6 +973,8 @@ static void tcp_chr_accept_server_sync(Chardev *chr) tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc = qio_net_listener_wait_client(s->listener); tcp_chr_set_client_ioc_name(chr, sioc); + yank_register_function(s->yank_name, yank_generic_iochannel, + QIO_CHANNEL(sioc)); tcp_chr_new_client(chr, sioc); object_unref(OBJECT(sioc)); } @@ -1070,6 +1085,8 @@ static void char_socket_finalize(Object *obj) object_unref(OBJECT(s->tls_creds)); } g_free(s->tls_authz); + yank_unregister_instance(s->yank_name); + g_free(s->yank_name); qemu_chr_be_event(chr, CHR_EVENT_CLOSED); } @@ -1085,6 +1102,8 @@ 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(s->yank_name, yank_generic_iochannel, + QIO_CHANNEL(sioc)); check_report_connect_error(chr, err); goto cleanup; } @@ -1118,6 +1137,8 @@ static void tcp_chr_connect_client_async(Chardev *chr) tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); sioc = qio_channel_socket_new(); tcp_chr_set_client_ioc_name(chr, sioc); + yank_register_function(s->yank_name, 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 @@ -1360,6 +1381,9 @@ static void qmp_chardev_open_socket(Chardev *chr, qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); } + s->yank_name = g_strconcat("chardev:", chr->label, NULL); + yank_register_instance(s->yank_name); + /* be isn't opened until we get a connection */ *be_opened = false;