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{ "id": 11752, "url": "https://patchwork.libcamera.org/api/1.1/patches/11752/?format=api", "web_url": "https://patchwork.libcamera.org/patch/11752/", "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": "<20210329002715.74403-3-hiroh@chromium.org>", "date": "2021-03-29T00:27:14", "name": "[libcamera-devel,2/3] libcamera: Request: Add an error value", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "315aa3a344536e9058cc6f4a8fe429e8d0a5fc30", "submitter": { "id": 63, "url": "https://patchwork.libcamera.org/api/1.1/people/63/?format=api", "name": "Hirokazu Honda", "email": "hiroh@chromium.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/11752/mbox/", "series": [ { "id": 1856, "url": "https://patchwork.libcamera.org/api/1.1/series/1856/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1856", "date": "2021-03-29T00:27:12", "name": "Handle an request error", "version": 1, "mbox": "https://patchwork.libcamera.org/series/1856/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/11752/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/11752/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 38C12C32ED\n\tfor <parsemail@patchwork.libcamera.org>;\n\tMon, 29 Mar 2021 00:27:30 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id EA8FD6878B;\n\tMon, 29 Mar 2021 02:27:29 +0200 (CEST)", "from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com\n\t[IPv6:2607:f8b0:4864:20::62a])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 76D626877C\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 29 Mar 2021 02:27:27 +0200 (CEST)", "by mail-pl1-x62a.google.com with SMTP id g10so3577665plt.8\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSun, 28 Mar 2021 17:27:27 -0700 (PDT)", "from hiroh2.tok.corp.google.com\n\t([2401:fa00:8f:2:1db7:ae60:9288:b906])\n\tby smtp.gmail.com with ESMTPSA id\n\tj188sm15227209pfd.64.2021.03.28.17.27.24\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tSun, 28 Mar 2021 17:27:25 -0700 (PDT)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=chromium.org header.i=@chromium.org\n\theader.b=\"AYzK/x21\"; 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\n\tSun, 28 Mar 2021 17:27:25 -0700 (PDT)", "From": "Hirokazu Honda <hiroh@chromium.org>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Mon, 29 Mar 2021 09:27:14 +0900", "Message-Id": "<20210329002715.74403-3-hiroh@chromium.org>", "X-Mailer": "git-send-email 2.31.0.291.g576ba9dcdaf-goog", "In-Reply-To": "<20210329002715.74403-1-hiroh@chromium.org>", "References": "<20210329002715.74403-1-hiroh@chromium.org>", "MIME-Version": "1.0", "Subject": "[libcamera-devel] [PATCH 2/3] libcamera: Request: Add an error value", "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>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "libcamera::Request returned by Camera::requestComplete() is\nalways assumed. Therefore, an error occurred in\nPipelineHandler::queueRequest() is ignored.\nThis adds an error value, which is zero on success, to\nlibcamera::Request() so that a Camera client can know the request\nerror in completing request.\n\nSigned-off-by: Hirokazu Honda <hiroh@chromium.org>\n---\n include/libcamera/request.h | 2 ++\n src/libcamera/pipeline_handler.cpp | 6 ++++--\n src/libcamera/request.cpp | 21 ++++++++++++++++-----\n 3 files changed, 22 insertions(+), 7 deletions(-)", "diff": "diff --git a/include/libcamera/request.h b/include/libcamera/request.h\nindex 6e5aad5f..60e91d5f 100644\n--- a/include/libcamera/request.h\n+++ b/include/libcamera/request.h\n@@ -52,6 +52,7 @@ public:\n \n \tuint64_t cookie() const { return cookie_; }\n \tStatus status() const { return status_; }\n+\tint result() const { return result_; }\n \n \tbool hasPendingBuffers() const { return !pending_.empty(); }\n \n@@ -73,6 +74,7 @@ private:\n \n \tconst uint64_t cookie_;\n \tStatus status_;\n+\tint result_;\n \tbool cancelled_;\n };\n \ndiff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp\nindex 05b807d6..a9a5523b 100644\n--- a/src/libcamera/pipeline_handler.cpp\n+++ b/src/libcamera/pipeline_handler.cpp\n@@ -383,8 +383,10 @@ void PipelineHandler::queueRequest(Request *request)\n \tdata->queuedRequests_.push_back(request);\n \n \tint ret = queueRequestDevice(camera, request);\n-\tif (ret)\n-\t\tdata->queuedRequests_.remove(request);\n+\tif (ret) {\n+\t\trequest->result_ = ret;\n+\t\tcompleteRequest(request);\n+\t}\n }\n \n /**\ndiff --git a/src/libcamera/request.cpp b/src/libcamera/request.cpp\nindex 0071667e..8106437e 100644\n--- a/src/libcamera/request.cpp\n+++ b/src/libcamera/request.cpp\n@@ -72,7 +72,7 @@ LOG_DEFINE_CATEGORY(Request)\n *\n */\n Request::Request(Camera *camera, uint64_t cookie)\n-\t: camera_(camera), cookie_(cookie), status_(RequestPending),\n+\t: camera_(camera), cookie_(cookie), status_(RequestPending), result_(0),\n \t cancelled_(false)\n {\n \t/**\n@@ -236,15 +236,26 @@ FrameBuffer *Request::findBuffer(const Stream *stream) const\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+ * The request status indicates whether the request has pended, completed or\n+ * cancelled.. When requests are created and before they complete the request\n+ * status is set to RequestPending, and is updated at completion time to\n+ * 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+ * \\fn Request::result()\n+ * \\brief Retrieve the error value of the request .\n+ *\n+ * The request error indicates whether the request has completed successfully or\n+ * with an error. It is a negative value if an error happens in queueing and\n+ * processing the request, or 0 on success.\n+ *\n+ * \\return The request error value.\n+ */\n+\n /**\n * \\fn Request::hasPendingBuffers()\n * \\brief Check if a request has buffers yet to be completed\n", "prefixes": [ "libcamera-devel", "2/3" ] }