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[185.47.220.165]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45e0157cc84sm25487685e9.7.2025.09.11.20.43.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Sep 2025 20:43:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1757648585; x=1758253385; darn=nongnu.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=5YCH2MJb2HNjjmB077MawQlihvASAC8bJ66TeNL3grc=; b=Kd+fwUZrLiX1spY3REzBz5AqUtQcHdKd/5nH/it79vf7AfiTIsCIz/b2nXue/tV0Bh xlrw6jOnsZE6zO78Q6zGJDdgj0Fp1yQo01OMhB0LZu33t9TbwsAQRjCuTr4/kkCZc/e+ CIyeebVAcH5BU8pK/qXSdNJWe9fLxTJwVK92LiLBT6/ysXJXwbCiGQkayhfuttnHRIR+ Dv0vr4lxYXVmgKcTe3ZT5IMApkkbWmjdMS01hx16WJ2+Fn8lqrYNKvkEth3+cAXBBi7D YzVru2slZ/iWE/AexXEdonIGAqDRDPda6uNQnltUqzzmtNHRowRCuUift8MqeSU4FE0k aTUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757648585; x=1758253385; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5YCH2MJb2HNjjmB077MawQlihvASAC8bJ66TeNL3grc=; b=XU4FZrNHOFfn9+nKLnfU6I3cVxr/Suj4s14tIRhdpGNpsTYeZJoi6NeuG4QBgkl4y8 klEwcIwh+KfnvoAH4G7y0UEXzkMq1i55iu6nh/NkdSJVe0hxNnFw84Flju2CweJO8ROS Vo9OPaVD3LeYIE3DGE926qNB+VsazmCvyyq8BOd+nCvK+qWDERG9tGlZ5rCGqpIZ1/0w N5n94Oi8rB/W3GVR6OS1uOo5ixWzdue01lzH0NvtyWkmxwVG4G/3Cq8ZPhuL6ubdCDNP m6ju7IOF4PhgU9N/11wv2dEThZ2HJ304xUkV6iS2gJTX2MLofaQh/qdUuqJw7adV6+ND p1JQ== X-Gm-Message-State: AOJu0YwfyKPx1tW40cDwvMBiWDQbJKlAwK1sORal0iARyLeVq9x+x89h GrVGccgX6qkMgZmW0QOlR2UWu/CYWSI4YhuAgNwuu/dwa2mON36Z8Nmw X-Gm-Gg: ASbGnct+GOZF/X8vaQXEULYB1JIn2QnY6QbUfByANT4tjCmMHzrJ7DM8SJ+EwFl8SLa B+ITH7Kpks0s56GTPAMvbudG4Fs2qofFD51oKfp57QfYqOvcaUwKlV2N3Fcc33WkN+t3wzBhIIL sePXEDu2Q/DBpHaP/7SrRT4szOynal7cGEr9iW2VmNX+PZV104pAZl3xA5diSXNQAct27iF/wLX n5WtL+t6u62rGsVomuRTV+42HY4nD8eL9863RXBvHXJ5jpNerc/8kq8emmZvklMOWppsgwHMI2N S51zQwtLGG7lNLENIPP1ByiQcrvUVRzl6+WO2nsXDy2D4fFJiM+m90n1SUVxArNSgSyLd88tPxW rEJsCSZ79VA8h7D1SovsKQWPXhdnKGzpGN8Q4oauUKbrhW1sgC8yd X-Google-Smtp-Source: AGHT+IFZgM6gRGFMjnsNt2Wjx2UqwjEFcJDQdu+gF+EgRIXnGB6oQmwO28TrguiiFVQfI0QRWy0qow== X-Received: by 2002:a05:600c:2113:b0:45d:d5c6:97b4 with SMTP id 5b1f17b1804b1-45f211d4efamr10498955e9.9.1757648585008; Thu, 11 Sep 2025 20:43:05 -0700 (PDT) From: Filip Hejsek Date: Fri, 12 Sep 2025 05:39:49 +0200 Subject: [PATCH v4 04/10] char-mux: add support for the terminal size MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250912-console-resize-v4-4-7925e444afc4@gmail.com> References: <20250912-console-resize-v4-0-7925e444afc4@gmail.com> In-Reply-To: <20250912-console-resize-v4-0-7925e444afc4@gmail.com> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , "Michael S. Tsirkin" , Laurent Vivier , Amit Shah , Markus Armbruster , Eric Blake , Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Yanan Wang , Zhao Liu , Szymon Lukasz , Filip Hejsek X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1757648576; l=1685; i=filip.hejsek@gmail.com; s=20250912; h=from:subject:message-id; bh=xWLqzrI5CVC6QjCdUZ5ooEgobp0TTI9162H88qJO6sE=; b=M22PFxG0FARaajdQXS3e5mX1aFfQQP+k/PrxNoq+B2onO7BND5wb9M9pcf6j+GAnNHNiBQ9D3 jOtbH5uY3bOCep8E9BKvilB5NU5PVF/CdDMu+d81aNoctK14yLRU8/i X-Developer-Key: i=filip.hejsek@gmail.com; a=ed25519; pk=nakB8gEK3oi+Q/5dBTMCy/LgZL47NP60z1jeDR6O/WU= 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=2a00:1450:4864:20::333; envelope-from=filip.hejsek@gmail.com; helo=mail-wm1-x333.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1757648832597116600 From: Szymon Lukasz The terminal size of a mux chardev should be the same as the real chardev, so listen for CHR_EVENT_RESIZE to be up to date. We forward CHR_EVENT_RESIZE only to the focused frontend. This means frontends should probably update their view of the terminal size on receiving CHR_EVENT_MUX_IN. Signed-off-by: Szymon Lukasz Signed-off-by: Filip Hejsek --- chardev/char-mux.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/chardev/char-mux.c b/chardev/char-mux.c index 6b36290e2c49f579580d2abb5aa552806f019d4a..4d3d05b82f13e002c766142f9d9= c24977b8b9bd2 100644 --- a/chardev/char-mux.c +++ b/chardev/char-mux.c @@ -264,9 +264,24 @@ void mux_chr_send_all_event(Chardev *chr, QEMUChrEvent= event) } } =20 +static void mux_update_winsize(Chardev *chr) +{ + MuxChardev *d =3D MUX_CHARDEV(chr); + uint16_t cols, rows; + + qemu_chr_fe_get_winsize(&d->chr, &cols, &rows); + qemu_chr_resize(chr, cols, rows); +} + static void mux_chr_event(void *opaque, QEMUChrEvent event) { - mux_chr_send_all_event(CHARDEV(opaque), event); + Chardev *chr =3D CHARDEV(opaque); + + if (event =3D=3D CHR_EVENT_RESIZE) { + mux_update_winsize(chr); + } else { + mux_chr_send_all_event(chr, event); + } } =20 static GSource *mux_chr_add_watch(Chardev *s, GIOCondition cond) @@ -382,6 +397,7 @@ static void qemu_chr_open_mux(Chardev *chr, */ *be_opened =3D muxes_opened; qemu_chr_fe_init(&d->chr, drv, errp); + mux_update_winsize(chr); } =20 static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend, --=20 2.51.0