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{ "id": 23016, "url": "https://patchwork.libcamera.org/api/patches/23016/?format=api", "web_url": "https://patchwork.libcamera.org/patch/23016/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20250325180821.1456154-5-barnabas.pocze@ideasonboard.com>", "date": "2025-03-25T18:08:16", "name": "[RFC,v3,4/9] libcamera: process: Return error if already running", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "3cf35decd8df98f157ae4b69bc421e36632804f0", "submitter": { "id": 216, "url": "https://patchwork.libcamera.org/api/people/216/?format=api", "name": "Barnabás Pőcze", "email": "barnabas.pocze@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/23016/mbox/", "series": [], "comments": "https://patchwork.libcamera.org/api/patches/23016/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/23016/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 910C5C331F\n\tfor <parsemail@patchwork.libcamera.org>;\n\tTue, 25 Mar 2025 18:08:56 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 964BE617F4;\n\tTue, 25 Mar 2025 19:08:55 +0100 (CET)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 6EE61617F4\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tTue, 25 Mar 2025 19:08:45 +0100 (CET)", "from pb-laptop.local (185.221.143.221.nat.pool.zt.hu\n\t[185.221.143.221])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id AD69F353\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tTue, 25 Mar 2025 19:06:57 +0100 (CET)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"dY1dpBEO\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1742926018;\n\tbh=Ft53fGQESzh6DOjVPcyuR81DITUSnZVDnmKf7TSkSM0=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=dY1dpBEOV+0Yn4413XH5UEYJXeamxWP0z32GLeWxXCdRXVsMq2CQA0SZ8VXStm97P\n\tFWGIklZEqcjsrgqBVNXENzV+MKWTU3/WBrqkDSGGJo8GleEWh49AoeV/ETtsYVEEdO\n\ttH0chfqmof+DsAgnzvrvoeS+qxjhRQHaHCZpzhWI=", "From": "=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= <barnabas.pocze@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Subject": "[RFC PATCH v3 4/9] libcamera: process: Return error if already\n\trunning", "Date": "Tue, 25 Mar 2025 19:08:16 +0100", "Message-ID": "<20250325180821.1456154-5-barnabas.pocze@ideasonboard.com>", "X-Mailer": "git-send-email 2.49.0", "In-Reply-To": "<20250325180821.1456154-1-barnabas.pocze@ideasonboard.com>", "References": "<20250325180821.1456154-1-barnabas.pocze@ideasonboard.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Returning 0 when a running process is already managed can be\nconfusing since the parameters might be completely different,\ncausing the caller to mistakenly assume that the program it\nspecified has been started.\n\nSigned-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>\n---\n src/libcamera/process.cpp | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/src/libcamera/process.cpp b/src/libcamera/process.cpp\nindex aa9e8f519..716523acc 100644\n--- a/src/libcamera/process.cpp\n+++ b/src/libcamera/process.cpp\n@@ -241,7 +241,7 @@ int Process::start(const std::string &path,\n \tint ret;\n \n \tif (pid_ > 0)\n-\t\treturn 0;\n+\t\treturn -EBUSY;\n \n \tint childPid = fork();\n \tif (childPid == -1) {\n", "prefixes": [ "RFC", "v3", "4/9" ] }