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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-427f00cdf6csm20473949f8f.43.2025.10.21.07.23.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Oct 2025 07:23:05 -0700 (PDT) Message-ID: Date: Tue, 21 Oct 2025 16:23:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] char: rename CharBackend->CharFrontend Content-Language: en-US To: =?UTF-8?Q?Marc-Andr=C3=A9_Lureau?= , "Dr. David Alan Gilbert" Cc: Peter Maydell , qemu-devel@nongnu.org, pbonzini@redhat.com, "Michael S. Tsirkin" , Stefano Garzarella , "Gonglei (Arei)" , Zhenwei Pi , Laurent Vivier , Amit Shah , Stefan Berger , =?UTF-8?Q?Alex_Benn=C3=A9e?= , Igor Mitsyanko , =?UTF-8?Q?Cl=C3=A9ment_Chigot?= , Frederic Konrad , Alberto Garcia , Thomas Huth , Halil Pasic , Christian Borntraeger , Jason Herne , Yoshinori Sato , Magnus Damm , Nicholas Piggin , Harsh Prateek Bora , "Collin L. Walling" , Stefano Stabellini , Anthony PERARD , Paul Durrant , "Edgar E. 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References: <20251021122533.721467-1-marcandre.lureau@redhat.com> From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=philmd@linaro.org; helo=mail-wm1-x32b.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-rust@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: QEMU Rust-related patches and discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org Sender: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org On 21/10/25 15:58, Marc-André Lureau wrote: > Hi > > On Tue, Oct 21, 2025 at 5:52 PM Dr. David Alan Gilbert wrote: >> >> * Peter Maydell (peter.maydell@linaro.org) wrote: >>> Marc-André Lureau wrote: >>>> The actual backend is "Chardev", CharBackend is the frontend side of it, >>>> let's rename it for readability. >>> >>> I always thought the "frontend" was the device the guest >>> saw (the 16650 UART or whatever). invocation.html has bits >>> talking about "virtio hvc console frontend device" which >>> seem like they also use that terminology. >>> >>> If we want to clean up the naming it might be helpful to have >>> a comment somewhere documenting the different components and >>> what names we give them and how they fit together (or even >>> better, something in docs/devel/...) >> >> Or something more descriptive like 'CharGuestSide' > > If we are talking about the Chardev frontend or user, that's too > restrictive. We have generic stream handling code (think > mux/hub/tests/client/server etc) that do not fit that usage naming. Isn't it - backend -> host adapter - frontend -> implementation used by guest ?