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[185.47.220.165]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-464f5d053f2sm142259325e9.20.2025.09.20.16.46.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Sep 2025 16:46:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1758411966; x=1759016766; 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=y8b1m3nNjRvsgCA/3OAkRK5Tn4EnpI6Wrj/uOCDNwX4=; b=f51wH0gi+acPD3D8CcLcwQjhOScNY4CK9QhnlmRthlzfcH58ytPG5JX5IES4WRQ+5p wjd5sowgqu2NokZpAV8CrzHAOdyupRZ+euR0+El4czpkDfomG/Wi3WQIZ/twyb7A9eyQ rnqiCPuDE0hlJ5tZLxZNcpCLMl020FB5YJe5FPI+kGgrKRlmzA3NX5ABGBdAMzZlWH5q SDifiW32R2PrhE012tof5Ac5hZVieHPa1P6JEeGRMCREP9o0nLTnwV/0+WVQ36v81s/E H3NG9p+IsrUPOLuH0UFyouJdAbiRo+SEdqR9OB+meOlYBYVeDvXdpsaIb5URDaOEH8Pl TmAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758411966; x=1759016766; 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=y8b1m3nNjRvsgCA/3OAkRK5Tn4EnpI6Wrj/uOCDNwX4=; b=aRRnf1VF7mwMjxyJSqk97K7LiPm73JGZhlKUQO8KcTUgLnfStH7E9BCmgoysg5zbEH ZRbBySxl863amDzKKKXaxUgIT16xQ2+RekR6wQuxfutZ0uPRY2JrWdKP1o0v+VOy+g9j 4xqCVqT/yKqQQgWVJ6kHemb9HYitzny0Z/ud6w8NVYnMUo6NrV/RotlZWiEyZkkyJcc1 P8Vq7Sv5oPkVyP6nA4+BjfrUuhlr4qPKFYnf8IjdBAYoB0KDlo9vq4I+16Xlcwa71JyJ Gud5YDw7XhNHVz/0xoMRn27SIJVNd31LQuv6cwxLssEFG3MitDb/SatcBDvpDQ4yCjg1 3L9w== X-Gm-Message-State: AOJu0YzcS+UNGn2gJ555j91STRUlKy3VUMpkRmOJGo006hCh4qfIY/qE b+Nqyi12z7cJzgDpO2YTCkcZbOdsgNVbCZ0BZeucEVFKLlpy3tFwj1bu X-Gm-Gg: ASbGnctcz+GTdmUt6G51a5+sAK7fg/qCS3CtO5MsvjCXh9pmitYu22EBzcuAen4rPsR xivOYH3epA7DyOGOSzB5JDZPcISH+o2NWqilnY7j2ubL53vT3r5VlxLFyRTxLrSjKhkoW4Vr4Ry O450i8fx+we99J8cmNG70qjwyRvUtwLX+WvhBEII3Lu2oVm4EOSeWKFwko36rxEEzmjfFCl7R3V MHoZjfMh80TmTAXM0qy/j+t669lQDIUhAotizFw8QBnsbLrp9Ditr+zsZwzY1VtNbOpIhGeWDFb qHaMzeG43AguTNrbzUJ9aAuvdTUyWoLr3SY3sL53cCFqEfWINTgajttSMxEV7PMuiAWCd7JDl3k bHHY5lR2PmKgUqeygFaI813d6BXHK0eUrGUHyMNlTyQ1BcC0r2MnVT7DsVOKQ85o= X-Google-Smtp-Source: AGHT+IFKI8KLAPj5bk3CegRqPq8lN8lLXlqLLrl2Q7aZpyvYYqB9gd6J0Dz3nKBLlpE4zQx89rzt/g== X-Received: by 2002:a05:6000:400c:b0:3ea:9042:e682 with SMTP id ffacd0b85a97d-3ee7c55430amr6667997f8f.11.1758411966340; Sat, 20 Sep 2025 16:46:06 -0700 (PDT) From: Filip Hejsek Date: Sun, 21 Sep 2025 01:45:31 +0200 Subject: [PATCH RFC v5 01/12] chardev: add cols, rows fields MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250921-console-resize-v5-1-89e3c6727060@gmail.com> References: <20250921-console-resize-v5-0-89e3c6727060@gmail.com> In-Reply-To: <20250921-console-resize-v5-0-89e3c6727060@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 , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Maximilian Immanuel Brandtner , Szymon Lukasz , Filip Hejsek X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1758411962; l=2276; i=filip.hejsek@gmail.com; s=20250912; h=from:subject:message-id; bh=qKds+se7c4I8+/AcqhGDFyyVfjfxbvfkq+ChYOtNMzo=; b=oOALkNNtoP+4iyR/iK7otC7SHypbWLJUKZmFiX0DK8qVj8TlU5CTNwYWjZIovHMFWgR9aIWww AhyyjOhFofiCjQw34YDEL/cuaWljbPjlXiZA8N4Y80kW2ncY5otXfzb 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::432; envelope-from=filip.hejsek@gmail.com; helo=mail-wr1-x432.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: 1758412023349116600 From: Szymon Lukasz These fields should be interpreted as the size of the terminal connected to a given chardev. Signed-off-by: Szymon Lukasz Signed-off-by: Filip Hejsek Reviewed-by: Daniel P. Berrang=C3=A9 --- chardev/char-fe.c | 13 +++++++++++++ include/chardev/char-fe.h | 10 ++++++++++ include/chardev/char.h | 1 + 3 files changed, 24 insertions(+) diff --git a/chardev/char-fe.c b/chardev/char-fe.c index 158a5f4f551ee49120eee6ebdf772fb450739f47..8622898bd414c208b5a0397b439= e18a8bf0b8a92 100644 --- a/chardev/char-fe.c +++ b/chardev/char-fe.c @@ -329,6 +329,19 @@ void qemu_chr_fe_set_echo(CharBackend *be, bool echo) } } =20 +void qemu_chr_fe_get_winsize(CharBackend *be, uint16_t *cols, uint16_t *ro= ws) +{ + Chardev *chr =3D be->chr; + + if (chr) { + *cols =3D chr->cols; + *rows =3D chr->rows; + } else { + *cols =3D 0; + *rows =3D 0; + } +} + void qemu_chr_fe_set_open(CharBackend *be, bool is_open) { Chardev *chr =3D be->chr; diff --git a/include/chardev/char-fe.h b/include/chardev/char-fe.h index 8ef05b3dd095bdcaa51b10482261a29b1e8233c7..02d5606fa343ac64a76f48dcd25= 0b5431a0a7761 100644 --- a/include/chardev/char-fe.h +++ b/include/chardev/char-fe.h @@ -158,6 +158,16 @@ int qemu_chr_fe_wait_connected(CharBackend *be, Error = **errp); */ void qemu_chr_fe_set_echo(CharBackend *be, bool echo); =20 +/** + * qemu_chr_fe_get_winsize: + * @cols: the address for storing columns + * @rows: the address for storing rows + * + * Get the size of the terminal connected to the chardev backend. + * Returns *cols =3D *rows =3D 0, if no associated Chardev. + */ +void qemu_chr_fe_get_winsize(CharBackend *be, uint16_t *cols, uint16_t *ro= ws); + /** * qemu_chr_fe_set_open: * @be: a CharBackend diff --git a/include/chardev/char.h b/include/chardev/char.h index 429852f8d9d3c5a7e061acea3561b019b15d658f..336b2e68d099e70a9abe71ef842= b160bf12ea932 100644 --- a/include/chardev/char.h +++ b/include/chardev/char.h @@ -65,6 +65,7 @@ struct Chardev { char *filename; int logfd; int be_open; + uint16_t cols, rows; /* used to coordinate the chardev-change special-case: */ bool handover_yank_instance; GSource *gsource; --=20 2.51.0