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GET /api/1.1/patches/1967/?format=api
{ "id": 1967, "url": "https://patchwork.libcamera.org/api/1.1/patches/1967/?format=api", "web_url": "https://patchwork.libcamera.org/patch/1967/", "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": "<20190914110620.23290-1-laurent.pinchart@ideasonboard.com>", "date": "2019-09-14T11:06:19", "name": "[libcamera-devel,v2,1/2] libcamera: utils: Add clock helpers", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "e1ba812553fac617b691ca3d6596b834d42af336", "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/1967/mbox/", "series": [ { "id": 490, "url": "https://patchwork.libcamera.org/api/1.1/series/490/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=490", "date": "2019-09-14T11:06:19", "name": "[libcamera-devel,v2,1/2] libcamera: utils: Add clock helpers", "version": 2, "mbox": "https://patchwork.libcamera.org/series/490/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/1967/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/1967/checks/", "tags": {}, "headers": { "Return-Path": "<laurent.pinchart@ideasonboard.com>", "Received": [ "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 0BD0260BB0\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 14 Sep 2019 13:06:32 +0200 (CEST)", "from pendragon.lan (bl10-204-24.dsl.telepac.pt [85.243.204.24])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id D3F4823F\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 14 Sep 2019 13:06:30 +0200 (CEST)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1568459191;\n\tbh=ld3KQjRs/cuBqAj1qCZazqmBMF8jmGfvEidrHcu8Uwk=;\n\th=From:To:Subject:Date:From;\n\tb=WQGAMnJofQgDl73Ymz5bAIYAbpwjktnmt3wwj7tMTcEbJrCY4QUetDrBxX2LZC4xX\n\t77wagARuCRtpJ/TQxlSPVVpL51dCLvKDLTVbcTaCIO7ov5/i/H3YWuctrfGcq0BAFd\n\tW/aQaB2RHuoh2kXM8QtofVjL3DNzk1bB4/UEWvOc=", "From": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Sat, 14 Sep 2019 14:06:19 +0300", "Message-Id": "<20190914110620.23290-1-laurent.pinchart@ideasonboard.com>", "X-Mailer": "git-send-email 2.21.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v2 1/2] libcamera: utils: Add clock helpers", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.23", "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>", "X-List-Received-Date": "Sat, 14 Sep 2019 11:06:32 -0000" }, "content": "In preparation for standardisation of the std::chrono::steady_clock as\nthe libcamera default clock, define aliases for the clock, duration and\ntime point, and add helper functions to convert a duration to a timespec\nand a time point to a string. More helpers will be added later as\nneeded.\n\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n src/libcamera/include/utils.h | 10 +++++++\n src/libcamera/utils.cpp | 50 +++++++++++++++++++++++++++++++++++\n 2 files changed, 60 insertions(+)", "diff": "diff --git a/src/libcamera/include/utils.h b/src/libcamera/include/utils.h\nindex 47a422587338..52eee8ac2804 100644\n--- a/src/libcamera/include/utils.h\n+++ b/src/libcamera/include/utils.h\n@@ -8,7 +8,10 @@\n #define __LIBCAMERA_UTILS_H__\n \n #include <algorithm>\n+#include <chrono>\n #include <memory>\n+#include <string>\n+#include <sys/time.h>\n \n #define ARRAY_SIZE(a)\t(sizeof(a) / sizeof(a[0]))\n \n@@ -53,6 +56,13 @@ const T& clamp(const T& v, const T& lo, const T& hi)\n \treturn std::max(lo, std::min(v, hi));\n }\n \n+using clock = std::chrono::steady_clock;\n+using duration = std::chrono::steady_clock::duration;\n+using time_point = std::chrono::steady_clock::time_point;\n+\n+struct timespec duration_to_timespec(const duration &value);\n+std::string time_point_to_string(const time_point &time);\n+\n } /* namespace utils */\n \n } /* namespace libcamera */\ndiff --git a/src/libcamera/utils.cpp b/src/libcamera/utils.cpp\nindex afbdd8349790..fe7ec53302a3 100644\n--- a/src/libcamera/utils.cpp\n+++ b/src/libcamera/utils.cpp\n@@ -7,6 +7,8 @@\n \n #include \"utils.h\"\n \n+#include <iomanip>\n+#include <sstream>\n #include <stdlib.h>\n #include <string.h>\n #include <unistd.h>\n@@ -93,6 +95,54 @@ char *secure_getenv(const char *name)\n * \\return lo if v is less than lo, hi if v is greater than hi, otherwise v\n */\n \n+/**\n+ * \\typedef clock\n+ * \\brief The libcamera clock (monotonous)\n+ */\n+\n+/**\n+ * \\typedef duration\n+ * \\brief The libcamera duration related to libcamera::utils::clock\n+ */\n+\n+/**\n+ * \\typedef time_point\n+ * \\brief The libcamera time point related to libcamera::utils::clock\n+ */\n+\n+/**\n+ * \\brief Convert a duration to a timespec\n+ * \\param[in] value The duration\n+ * \\return A timespec expressing the duration\n+ */\n+struct timespec duration_to_timespec(const duration &value)\n+{\n+\tuint64_t nsecs = std::chrono::duration_cast<std::chrono::nanoseconds>(value).count();\n+\tstruct timespec ts;\n+\tts.tv_sec = nsecs / 1000000000ULL;\n+\tts.tv_nsec = nsecs % 1000000000ULL;\n+\treturn ts;\n+}\n+\n+/**\n+ * \\brief Convert a time point to a string representation\n+ * \\param[in] time The time point\n+ * \\return A string representing the time point in hh:mm:ss.nanoseconds format\n+ */\n+std::string time_point_to_string(const time_point &time)\n+{\n+\tuint64_t nsecs = std::chrono::duration_cast<std::chrono::nanoseconds>(time.time_since_epoch()).count();\n+\tunsigned int secs = nsecs / 1000000000ULL;\n+\n+\tstd::ostringstream ossTimestamp;\n+\tossTimestamp.fill('0');\n+\tossTimestamp << secs / (60 * 60) << \":\"\n+\t\t << std::setw(2) << (secs / 60) % 60 << \":\"\n+\t\t << std::setw(2) << secs % 60 << \".\"\n+\t\t << std::setw(9) << nsecs % 1000000000ULL;\n+\treturn ossTimestamp.str();\n+}\n+\n } /* namespace utils */\n \n } /* namespace libcamera */\n", "prefixes": [ "libcamera-devel", "v2", "1/2" ] }