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{ "id": 23068, "url": "https://patchwork.libcamera.org/api/patches/23068/?format=api", "web_url": "https://patchwork.libcamera.org/patch/23068/", "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": "<20250328095223.26966-1-barnabas.pocze@ideasonboard.com>", "date": "2025-03-28T09:52:23", "name": "[v1] libcamera: base: object: Forward arguments when invoking", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "15b59074ab49d79de0be6acbe038ca388c1a06e8", "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/23068/mbox/", "series": [ { "id": 5091, "url": "https://patchwork.libcamera.org/api/series/5091/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5091", "date": "2025-03-28T09:52:23", "name": "[v1] libcamera: base: object: Forward arguments when invoking", "version": 1, "mbox": "https://patchwork.libcamera.org/series/5091/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/23068/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/23068/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 0CAC3C323E\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 28 Mar 2025 09:52:30 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id CF92968979;\n\tFri, 28 Mar 2025 10:52:28 +0100 (CET)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 2B33F61868\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 28 Mar 2025 10:52:27 +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 C3379752\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 28 Mar 2025 10:50:37 +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=\"FvGy/ar2\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1743155437;\n\tbh=TFKFtC35zPTsPF1vKiOdl9XzqfZUlAI43p7F2pH+AcQ=;\n\th=From:To:Subject:Date:From;\n\tb=FvGy/ar2KyVu4jp02c+R0IZCxI98uOTCyd8qDmoADIC1wgF53pqnHJes17jC7K/UK\n\tlX1q4aCav08Q037OloL/Yyh7stKubAIog0Bt9zTcxXR5EhM3nkbDnIk7Lt2WFzjKuz\n\tF0EDRuaLgx0sUdMDm45UT3aa0mua2tpocWZd4SgU=", "From": "=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= <barnabas.pocze@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Subject": "[PATCH v1] libcamera: base: object: Forward arguments when invoking", "Date": "Fri, 28 Mar 2025 10:52:23 +0100", "Message-ID": "<20250328095223.26966-1-barnabas.pocze@ideasonboard.com>", "X-Mailer": "git-send-email 2.49.0", "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": "Use `std::forward()` to forward the received arguments to enable the\npotential use of move constructors instead of copy constructors.\n\nCommit 0eacde623bb0 (\"libcamera: object: Avoid argument copies in invokeMethod()\")\nadded the forwarding references to `invokeMethod()` but it did not add the\nappropriate `std::forward()` calls, so copying could still took place\neven if not necessary.\n\nSigned-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>\n---\n include/libcamera/base/object.h | 3 ++-\n 1 file changed, 2 insertions(+), 1 deletion(-)", "diff": "diff --git a/include/libcamera/base/object.h b/include/libcamera/base/object.h\nindex 6cb935a04..a24f84ff9 100644\n--- a/include/libcamera/base/object.h\n+++ b/include/libcamera/base/object.h\n@@ -9,6 +9,7 @@\n \n #include <list>\n #include <memory>\n+#include <utility>\n #include <vector>\n \n #include <libcamera/base/bound_method.h>\n@@ -39,7 +40,7 @@ public:\n \t{\n \t\tT *obj = static_cast<T *>(this);\n \t\tauto *method = new BoundMethodMember<T, R, FuncArgs...>(obj, this, func, type);\n-\t\treturn method->activate(args..., true);\n+\t\treturn method->activate(std::forward<Args>(args)..., true);\n \t}\n \n \tThread *thread() const { return thread_; }\n", "prefixes": [ "v1" ] }