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{
    "id": 661,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/661/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/661/",
    "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": "<20190228162913.6508-9-laurent.pinchart@ideasonboard.com>",
    "date": "2019-02-28T16:29:11",
    "name": "[libcamera-devel,08/10] libcamera: request: Add request completion status",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "406608344f77ab1753497da7156abac003aee428",
    "submitter": {
        "id": 2,
        "url": "https://patchwork.libcamera.org/api/1.1/people/2/?format=api",
        "name": "Laurent Pinchart",
        "email": "laurent.pinchart@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/661/mbox/",
    "series": [
        {
            "id": 196,
            "url": "https://patchwork.libcamera.org/api/1.1/series/196/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=196",
            "date": "2019-02-28T16:29:03",
            "name": "Rework request completion handling",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/196/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/661/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/661/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<laurent.pinchart@ideasonboard.com>",
        "Received": [
            "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id C5762610B7\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 28 Feb 2019 17:29:27 +0100 (CET)",
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        ],
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        "From": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Thu, 28 Feb 2019 18:29:11 +0200",
        "Message-Id": "<20190228162913.6508-9-laurent.pinchart@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.19.2",
        "In-Reply-To": "<20190228162913.6508-1-laurent.pinchart@ideasonboard.com>",
        "References": "<20190228162913.6508-1-laurent.pinchart@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH 08/10] libcamera: request: Add request\n\tcompletion status",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.23",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "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>",
        "X-List-Received-Date": "Thu, 28 Feb 2019 16:29:28 -0000"
    },
    "content": "Add a new field to the Request class to report its completion status,\nand a new complete() method to update the status.\n\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n include/libcamera/request.h | 12 +++++++++++\n src/libcamera/request.cpp   | 40 ++++++++++++++++++++++++++++++++++++-\n 2 files changed, 51 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/include/libcamera/request.h b/include/libcamera/request.h\nindex ef081177309f..0b75f9d9bd19 100644\n--- a/include/libcamera/request.h\n+++ b/include/libcamera/request.h\n@@ -18,9 +18,16 @@ class Buffer;\n class Camera;\n class Stream;\n \n+\n class Request\n {\n public:\n+\tenum Status {\n+\t\tRequestPending,\n+\t\tRequestComplete,\n+\t\tRequestCancelled,\n+\t};\n+\n \texplicit Request(Camera *camera);\n \tRequest(const Request &) = delete;\n \tRequest &operator=(const Request &) = delete;\n@@ -28,15 +35,20 @@ public:\n \tint setBuffers(const std::map<Stream *, Buffer *> &streamMap);\n \tBuffer *findBuffer(Stream *stream) const;\n \n+\tStatus status() const { return status_; }\n+\n private:\n \tfriend class Camera;\n \n \tint prepare();\n+\tvoid complete(Status status);\n \tvoid bufferCompleted(Buffer *buffer);\n \n \tCamera *camera_;\n \tstd::map<Stream *, Buffer *> bufferMap_;\n \tstd::unordered_set<Buffer *> pending_;\n+\n+\tStatus status_;\n };\n \n } /* namespace libcamera */\ndiff --git a/src/libcamera/request.cpp b/src/libcamera/request.cpp\nindex d76db24de0e2..cb170930fbb6 100644\n--- a/src/libcamera/request.cpp\n+++ b/src/libcamera/request.cpp\n@@ -23,6 +23,17 @@ namespace libcamera {\n \n LOG_DEFINE_CATEGORY(Request)\n \n+/**\n+ * \\enum Request::Status\n+ * Request completion status\n+ * \\var Request::RequestPending\n+ * The request hasn't completed yet\n+ * \\var Request::RequestComplete\n+ * The request has completed\n+ * \\var Request::RequestCancelled\n+ * The request has been cancelled due to capture stop\n+ */\n+\n /**\n  * \\class Request\n  * \\brief A frame capture request\n@@ -36,7 +47,7 @@ LOG_DEFINE_CATEGORY(Request)\n  * \\param[in] camera The camera that creates the request\n  */\n Request::Request(Camera *camera)\n-\t: camera_(camera)\n+\t: camera_(camera), status_(RequestPending)\n {\n }\n \n@@ -82,6 +93,19 @@ Buffer *Request::findBuffer(Stream *stream) const\n \treturn it->second;\n }\n \n+/**\n+ * \\fn Request::status()\n+ * \\brief Retrieve the request completion status\n+ *\n+ * The request status indicates whether the request has completed successfully\n+ * or with an error. When requests are created and before they complete the\n+ * request status is set to RequestPending, and is updated at completion time\n+ * to RequestComplete. If a request is cancelled at capture stop before it has\n+ * completed, its status is set to RequestCancelled.\n+ *\n+ * \\return The request completion status\n+ */\n+\n /**\n  * \\brief Prepare the resources for the completion handler\n  */\n@@ -96,6 +120,18 @@ int Request::prepare()\n \treturn 0;\n }\n \n+/**\n+ * \\brief Complete a queued request\n+ * \\param[in] status The request completion status\n+ *\n+ * Mark the request as complete by updating its status to \\a status.\n+ */\n+void Request::complete(Status status)\n+{\n+\tASSERT(pending_.empty());\n+\tstatus_ = status;\n+}\n+\n /**\n  * \\brief Slot for the buffer completed signal\n  *\n@@ -117,6 +153,8 @@ void Request::bufferCompleted(Buffer *buffer)\n \tif (!pending_.empty())\n \t\treturn;\n \n+\tcomplete(RequestComplete);\n+\n \tstd::map<Stream *, Buffer *> buffers(std::move(bufferMap_));\n \tcamera_->requestCompleted.emit(this, buffers);\n \tdelete this;\n",
    "prefixes": [
        "libcamera-devel",
        "08/10"
    ]
}