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{
    "id": 17903,
    "url": "https://patchwork.libcamera.org/api/patches/17903/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/17903/",
    "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": "<20221129053326.2858347-2-paul.elder@ideasonboard.com>",
    "date": "2022-11-29T05:33:24",
    "name": "[libcamera-devel,1/3] utils: libtuning: Add logger",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "109d8f7e45e39012b961e118a6f0fe1bcb152c37",
    "submitter": {
        "id": 17,
        "url": "https://patchwork.libcamera.org/api/people/17/?format=api",
        "name": "Paul Elder",
        "email": "paul.elder@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/17903/mbox/",
    "series": [
        {
            "id": 3645,
            "url": "https://patchwork.libcamera.org/api/series/3645/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3645",
            "date": "2022-11-29T05:33:23",
            "name": "utils: tuning: Add logging infrastructure",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/3645/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/17903/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/17903/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": [
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Tue, 29 Nov 2022 14:33:24 +0900",
        "Message-Id": "<20221129053326.2858347-2-paul.elder@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.35.1",
        "In-Reply-To": "<20221129053326.2858347-1-paul.elder@ideasonboard.com>",
        "References": "<20221129053326.2858347-1-paul.elder@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH 1/3] utils: libtuning: Add logger",
        "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>",
        "From": "Paul Elder via libcamera-devel <libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Paul Elder <paul.elder@ideasonboard.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Add logging infrastructure, so that log levels and files can be set, and\nso that information can be logged from anywhere in libtuning easily and\nconcicely.\n\nSigned-off-by: Paul Elder <paul.elder@ideasonboard.com>\n---\n utils/tuning/libtuning/__init__.py |   1 +\n utils/tuning/libtuning/logger.py   | 105 +++++++++++++++++++++++++++++\n 2 files changed, 106 insertions(+)\n create mode 100644 utils/tuning/libtuning/logger.py",
    "diff": "diff --git a/utils/tuning/libtuning/__init__.py b/utils/tuning/libtuning/__init__.py\nindex 93049976..5f0478ae 100644\n--- a/utils/tuning/libtuning/__init__.py\n+++ b/utils/tuning/libtuning/__init__.py\n@@ -2,6 +2,7 @@\n #\n # Copyright (C) 2022, Paul Elder <paul.elder@ideasonboard.com>\n \n+from libtuning.logger import *\n from libtuning.utils import *\n from libtuning.libtuning import *\n \ndiff --git a/utils/tuning/libtuning/logger.py b/utils/tuning/libtuning/logger.py\nnew file mode 100644\nindex 00000000..03b5e1e6\n--- /dev/null\n+++ b/utils/tuning/libtuning/logger.py\n@@ -0,0 +1,105 @@\n+# SPDX-License-Identifier: BSD-2-Clause\n+#\n+# Copyright (C) 2022, Paul Elder <paul.elder@ideasonboard.com>\n+#\n+# logger.py - Logging for libtuning\n+\n+\n+import datetime\n+from enum import IntEnum\n+from inspect import currentframe, getframeinfo\n+import math\n+from pathlib import Path\n+import psutil\n+import sys\n+import time\n+\n+\n+class Logger(object):\n+    class Level(IntEnum):\n+        Debug = 0\n+        Info = 1\n+        Warn = 2\n+        Error = 3\n+        Fatal = 4\n+\n+    level_map = {\n+        Level.Debug: 'DEBUG',\n+        Level.Info: 'INFO',\n+        Level.Warn: 'WARN',\n+        Level.Error: 'ERROR',\n+        Level.Fatal: 'FATAL',\n+    }\n+\n+    log_levels = {}\n+    log_level = Level.Info\n+    log_file = sys.stderr\n+\n+    # @brief Set the log levels from the command line argument\n+    # @param argstr String of log levels from cli argument, may be empty\n+    def set_log_levels(argstr):\n+        if argstr == '':\n+            return\n+\n+        strings = argstr.split(',')\n+        if len(strings) == 1 and strings[0].isnumeric():\n+            Logger.log_level = int(strings[0])\n+            return\n+\n+        pairs = [pair.split('=') for pair in strings]\n+        Logger.log_levels = {pair[0]: int(pair[1]) for pair in pairs}\n+\n+        if '*' in Logger.log_levels:\n+            Logger.log_level = Logger.log_levels['*']\n+\n+    # @brief Get the time since boot in the format HH:MM:SS.SSSSSSSSS\n+    def get_and_convert_timestamp():\n+        day_mult = 24 * 60 * 60\n+        hour_mult = 60 * 60\n+\n+        seconds = time.time() - psutil.boot_time()\n+        days = seconds // day_mult\n+        hours = (seconds - (days * day_mult)) // hour_mult\n+        hours += days * 24\n+        mins = (seconds - (hours * hour_mult)) // 60\n+        secs = (seconds - (hours * hour_mult)) % 60\n+        ns, s = math.modf(secs)\n+\n+        return f'{int(hours)}:{int(mins):02}:{int(s):02}.{int(ns * 10**9):09}'\n+\n+    # @brief Log a message\n+    # @param obj The object instance that wants to log, or a string to use as\n+    #        component name if the caller is not an object instance\n+    # @param level Log level\n+    # @param msg String to log\n+    # @param from_helper True if called from Logger's log_* helpers, False otherwise\n+    def log(obj, level: Level, msg: str, from_helper=False):\n+        if from_helper:\n+            frameinfo = getframeinfo(currentframe().f_back.f_back)\n+        else:\n+            frameinfo = getframeinfo(currentframe().f_back)\n+\n+        ts = Logger.get_and_convert_timestamp()\n+        if isinstance(obj, str):\n+            name = obj\n+        else:\n+            name = obj.__class__.__name__\n+\n+        if (name in Logger.log_levels and level >= Logger.log_levels[name]) or \\\n+           level >= Logger.log_level:\n+            print(f'[{ts}] {Logger.level_map[level]} {name} {Path(frameinfo.filename).name}:{frameinfo.lineno} {msg}', file=Logger.log_file)\n+\n+    def log_debug(obj, msg: str):\n+        Logger.log(obj, Logger.Level.Debug, msg, True)\n+\n+    def log_info(obj, msg: str):\n+        Logger.log(obj, Logger.Level.Info, msg, True)\n+\n+    def log_warn(obj, msg: str):\n+        Logger.log(obj, Logger.Level.Warn, msg, True)\n+\n+    def log_error(obj, msg: str):\n+        Logger.log(obj, Logger.Level.Error, msg, True)\n+\n+    def log_fatal(obj, msg: str):\n+        Logger.log(obj, Logger.Level.Fatal, msg, True)\n",
    "prefixes": [
        "libcamera-devel",
        "1/3"
    ]
}