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{
    "id": 22233,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/22233/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/22233/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/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": "<20241206160747.97176-8-jacopo.mondi@ideasonboard.com>",
    "date": "2024-12-06T16:07:45",
    "name": "[7/8] libcamera: request: Make access to metadata() const",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "5e39e555a74fcbb738bdf48b397b58fe9a9c3684",
    "submitter": {
        "id": 143,
        "url": "https://patchwork.libcamera.org/api/1.1/people/143/?format=api",
        "name": "Jacopo Mondi",
        "email": "jacopo.mondi@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/22233/mbox/",
    "series": [
        {
            "id": 4858,
            "url": "https://patchwork.libcamera.org/api/1.1/series/4858/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4858",
            "date": "2024-12-06T16:07:38",
            "name": "libcamera: Support partial metadata completion",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/4858/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/22233/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/22233/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 E32C0BE173\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri,  6 Dec 2024 16:08:11 +0000 (UTC)",
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        ],
        "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"BRtquDjr\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1733501248;\n\tbh=hcQCGlN1mpUvkybpuZx7ht1VfpPoOAeR0rAg/6KGvW8=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=BRtquDjrSx2t0Jzj8d47i7i23/UUNO/C+m5AU6IVLC1BuPaKFPgSCtQlcEtwOfpLp\n\tWOAzNlUZpRC+731jpW2CXyGZ315pDCU2v0HGi5MEdeqFyQ/OBRwIijKcne6xUJlYXh\n\tDA9fO963s8eDRZqm8VbyeMtKb/UCTA8BKSq02jp8=",
        "From": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>,\n\tHarvey Yang <chenghaoyang@chromium.org>,\n\tHan-Lin Chen <hanlinchen@chromium.org>",
        "Subject": "[PATCH 7/8] libcamera: request: Make access to metadata() const",
        "Date": "Fri,  6 Dec 2024 17:07:45 +0100",
        "Message-ID": "<20241206160747.97176-8-jacopo.mondi@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.47.1",
        "In-Reply-To": "<20241206160747.97176-1-jacopo.mondi@ideasonboard.com>",
        "References": "<20241206160747.97176-1-jacopo.mondi@ideasonboard.com>",
        "MIME-Version": "1.0",
        "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": "Restict access to the metadata list to return a const reference.\n\nProvide a Request::Private::metadata() function for the pipeline handler\nbase class to access the metadata list in RW mode.\n\nAll other users, of the public and internal API alike, can only\naccess metadata through a const reference.\n\nSigned-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\n---\n include/libcamera/internal/pipeline_handler.h | 4 ++--\n include/libcamera/internal/request.h          | 5 ++++-\n include/libcamera/request.h                   | 4 +++-\n src/libcamera/pipeline_handler.cpp            | 2 +-\n 4 files changed, 10 insertions(+), 5 deletions(-)",
    "diff": "diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h\nindex 3ca6a0290b2b..b84e5a06d77b 100644\n--- a/include/libcamera/internal/pipeline_handler.h\n+++ b/include/libcamera/internal/pipeline_handler.h\n@@ -74,7 +74,7 @@ public:\n \t\tstd::unordered_set<const ControlId *> ids;\n \t\tids.insert(&ctrl);\n \n-\t\trequest->metadata().set<T, T>(ctrl, value);\n+\t\trequest->_d()->metadata().set<T, T>(ctrl, value);\n \n \t\tCamera *camera = request->_d()->camera();\n \t\tcamera->metadataAvailable.emit(request, ids);\n@@ -92,7 +92,7 @@ public:\n \t\tstd::unordered_set<const ControlId *> ids;\n \t\tids.insert(&ctrl);\n \n-\t\trequest->metadata().set(ctrl, value);\n+\t\trequest->_d()->metadata().set(ctrl, value);\n \n \t\tCamera *camera = request->_d()->camera();\n \t\tcamera->metadataAvailable.emit(request, ids);\ndiff --git a/include/libcamera/internal/request.h b/include/libcamera/internal/request.h\nindex 98b7c6d6dfdf..1a7128b4259a 100644\n--- a/include/libcamera/internal/request.h\n+++ b/include/libcamera/internal/request.h\n@@ -42,7 +42,8 @@ public:\n \n \tvoid resetMetadata()\n \t{\n-\t\t_o<Request>()->metadata().clear();\n+\t\tControlList &data = metadata();\n+\t\tdata.clear();\n \t}\n \n \tvoid prepare(std::chrono::milliseconds timeout = 0ms);\n@@ -52,6 +53,8 @@ private:\n \tfriend class PipelineHandler;\n \tfriend std::ostream &operator<<(std::ostream &out, const Request &r);\n \n+\tControlList &metadata() { return _o<Request>()->metadataRW(); }\n+\n \tvoid doCancelRequest();\n \tvoid emitPrepareCompleted();\n \tvoid notifierActivated(FrameBuffer *buffer);\ndiff --git a/include/libcamera/request.h b/include/libcamera/request.h\nindex e214a9d13c37..7791080976c2 100644\n--- a/include/libcamera/request.h\n+++ b/include/libcamera/request.h\n@@ -50,7 +50,7 @@ public:\n \tvoid reuse(ReuseFlag flags = Default);\n \n \tControlList &controls() { return *controls_; }\n-\tControlList &metadata() { return *metadata_; }\n+\tconst ControlList &metadata() { return *metadata_; }\n \tconst BufferMap &buffers() const { return bufferMap_; }\n \tint addBuffer(const Stream *stream, FrameBuffer *buffer,\n \t\t      std::unique_ptr<Fence> fence = nullptr);\n@@ -67,6 +67,8 @@ public:\n private:\n \tLIBCAMERA_DISABLE_COPY(Request)\n \n+\tControlList &metadataRW() { return *metadata_; }\n+\n \tControlList *controls_;\n \tControlList *metadata_;\n \tBufferMap bufferMap_;\ndiff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp\nindex a69d789116ad..831ac6c87463 100644\n--- a/src/libcamera/pipeline_handler.cpp\n+++ b/src/libcamera/pipeline_handler.cpp\n@@ -548,7 +548,7 @@ void PipelineHandler::metadataAvailable(Request *request, const ControlList &met\n \tif (ids.empty())\n \t\treturn;\n \n-\trequest->metadata().merge(metadata);\n+\trequest->_d()->metadata().merge(metadata);\n \n \tCamera *camera = request->_d()->camera();\n \tcamera->metadataAvailable.emit(request, ids);\n",
    "prefixes": [
        "7/8"
    ]
}