Feature: show task details in system info view

shows whether or not known tasks are alive, and in particular shows how
much of the respective stack is still available.

src/WebApi_sysstatus.cpp

@@ -52,6 +52,20 @@ void WebApiSysstatusClass::onSystemStatus(AsyncWebServerRequest* request)
     root["chipcores"] = ESP.getChipCores();
     root["flashsize"] = ESP.getFlashChipSize();
 
+    JsonArray taskDetails = root["task_details"].to<JsonArray>();
+    static std::array<char const*, 12> constexpr task_names = {
+        "IDLE0", "IDLE1", "wifi", "tiT", "loopTask", "async_tcp", "mqttclient",
+        "HUAWEI_CAN_0", "PM:SDM", "PM:HTTP+JSON", "PM:SML", "PM:HTTP+SML"
+    };
+    for (char const* task_name : task_names) {
+        TaskHandle_t const handle = xTaskGetHandle(task_name);
+        if (!handle) { continue; }
+        JsonObject task = taskDetails.add<JsonObject>();
+        task["name"] = task_name;
+        task["stack_watermark"] = uxTaskGetStackHighWaterMark(handle);
+        task["priority"] = uxTaskPriorityGet(handle);
+    }
+
     String reason;
     reason = ResetReason::get_reset_reason_verbose(0);
     root["resetreason_0"] = reason;

webapp/src/components/TaskDetails.vue

@@ -0,0 +1,40 @@
+<template>
+    <CardElement :text="$t('taskdetails.TaskDetails')" textVariant="text-bg-primary">
+        <div class="table-responsive">
+            <table class="table table-hover table-condensed">
+                <tbody>
+                    <tr>
+                        <th>{{ $t('taskdetails.Name') }}</th>
+                        <th>{{ $t('taskdetails.StackFree') }}</th>
+                        <th>{{ $t('taskdetails.Priority') }}</th>
+                    </tr>
+                    <tr v-for="task in taskDetails" v-bind:key="task.name">
+                        <td>{{ $te(taskLangToken(task.name)) ? $t(taskLangToken(task.name)) : task.name }}</td>
+                        <td>{{ $n(task.stack_watermark, 'byte') }}</td>
+                        <td>{{ task.priority }}</td>
+                    </tr>
+                </tbody>
+            </table>
+        </div>
+    </CardElement>
+</template>
+
+<script lang="ts">
+import CardElement from '@/components/CardElement.vue';
+import type { TaskDetail } from '@/types/SystemStatus';
+import { defineComponent, type PropType } from 'vue';
+
+export default defineComponent({
+    components: {
+        CardElement,
+    },
+    props: {
+        taskDetails: { type: Array as PropType<TaskDetail[]>, required: true },
+    },
+    methods: {
+        taskLangToken(rawTask: string) {
+            return 'taskdetails.Task_' + rawTask.replace(/[^A-Za-z0-9]/g, '').toLowerCase();
+        },
+    },
+});
+</script>

webapp/src/locales/de.json

@@ -238,6 +238,24 @@
         "MaxUsage": "Maximale Speichernutzung seit Start",
         "Fragmentation": "Grad der Fragmentierung"
     },
+    "taskdetails": {
+        "TaskDetails": "Detailinformationen zu Tasks",
+        "Name": "Name",
+        "StackFree": "Stack Frei",
+        "Priority": "Priorität",
+        "Task_idle0": "Leerlauf (CPU-Kern 0)",
+        "Task_idle1": "Leerlauf (CPU-Kern 1)",
+        "Task_wifi": "Wi-Fi",
+        "Task_tit": "TCP/IP",
+        "Task_looptask": "Arduino Hauptschleife (loop)",
+        "Task_asynctcp": "Async TCP",
+        "Task_mqttclient": "MQTT Client",
+        "Task_huaweican0": "AC Ladegerät CAN",
+        "Task_pmsdm": "Stromzähler (SDM)",
+        "Task_pmhttpjson": "Stromzähler (HTTP+JSON)",
+        "Task_pmsml": "Stromzähler (Serial SML)",
+        "Task_pmhttpsml": "Stromzähler (HTTP+SML)"
+    },
     "radioinfo": {
         "RadioInformation": "Funkmodulinformationen",
         "Status": "{module} Status",

webapp/src/locales/en.json

@@ -238,6 +238,24 @@
         "MaxUsage": "Maximum usage since start",
         "Fragmentation": "Level of fragmentation"
     },
+    "taskdetails": {
+        "TaskDetails": "Task Details",
+        "Name": "Name",
+        "StackFree": "Stack Free",
+        "Priority": "Priority",
+        "Task_idle0": "Idle (CPU Core 0)",
+        "Task_idle1": "Idle (CPU Core 1)",
+        "Task_wifi": "Wi-Fi",
+        "Task_tit": "TCP/IP",
+        "Task_looptask": "Arduino Main Loop",
+        "Task_asynctcp": "Async TCP",
+        "Task_mqttclient": "MQTT Client",
+        "Task_huaweican0": "AC Charger CAN",
+        "Task_pmsdm": "PowerMeter (SDM)",
+        "Task_pmhttpjson": "PowerMeter (HTTP+JSON)",
+        "Task_pmsml": "PowerMeter (Serial SML)",
+        "Task_pmhttpsml": "PowerMeter (HTTP+SML)"
+    },
     "radioinfo": {
         "RadioInformation": "Radio Information",
         "Status": "{module} Status",

webapp/src/types/SystemStatus.ts

@@ -1,3 +1,9 @@
+export interface TaskDetail {
+    name: string;
+    stack_watermark: number;
+    priority: number;
+}
+
 export interface SystemStatus {
     // HardwareInfo
     chipmodel: string;
@@ -6,6 +12,8 @@ export interface SystemStatus {
     cpufreq: number;
     cputemp: number;
     flashsize: number;
+    // TaskDetails
+    task_details: TaskDetail[];
     // FirmwareInfo
     hostname: string;
     sdkversion: string;

webapp/src/views/SystemInfoView.vue

@@ -8,6 +8,8 @@
         <div class="mt-5"></div>
         <HeapDetails :systemStatus="systemDataList" />
         <div class="mt-5"></div>
+        <TaskDetails :taskDetails="systemDataList.task_details" />
+        <div class="mt-5"></div>
         <RadioInfo :systemStatus="systemDataList" />
         <div class="mt-5"></div>
     </BasePage>
@@ -19,6 +21,7 @@ import FirmwareInfo from '@/components/FirmwareInfo.vue';
 import HardwareInfo from '@/components/HardwareInfo.vue';
 import MemoryInfo from '@/components/MemoryInfo.vue';
 import HeapDetails from '@/components/HeapDetails.vue';
+import TaskDetails from '@/components/TaskDetails.vue';
 import RadioInfo from '@/components/RadioInfo.vue';
 import type { SystemStatus } from '@/types/SystemStatus';
 import { authHeader, handleResponse } from '@/utils/authentication';
@@ -31,6 +34,7 @@ export default defineComponent({
         HardwareInfo,
         MemoryInfo,
         HeapDetails,
+        TaskDetails,
         RadioInfo,
     },
     data() {