Esp32 AsynWebserver Websocket Crush

问题描述

我正在尝试使用 ESPAsycnWebserver lib 使用 websocket 构建异步网络服务器。一切正常，但有一个时刻：当我多次刷新：13 或 29 时，它会崩溃并重新启动。我认为存在内存问题，但不知道如何解决。这是控制台输出和工作代码：

 Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC      : 0x401705a7  PS      : 0x00060c30  A0      : 0x800d30de  A1      : 0x3ffb1ef0  
A2      : 0x3ffb1f3c  A3      : 0x00000001  A4      : 0x80089a44  A5      : 0x3ffd0ec0
A6      : 0x00000000  A7      : 0x3ffb0060  A8      : 0x3ffc6e17  A9      : 0x00000001  
A10     : 0x00000003  A11     : 0x00060a23  A12     : 0x00000005  A13     : 0x00000020
A14     : 0x00000020  A15     : 0x3ffd1391  SAR     : 0x00000018  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000001  LBEG    : 0x4000c2e0  LEND    : 0x4000c2f6  LCOUNT  : 0xffffffff

ELF file SHA256: 0000000000000000

Backtrace: 0x401705a7:0x3ffb1ef0 0x400d30db:0x3ffb1f10 0x400d31e9:0x3ffb1f30 0x400d3231:0x3ffb1f70 0x400d0ed4:0x3ffb1f90 0x400dffdd:0x3ffb1fb0 0x40089832:0x3ffb1fd0
  #0  0x401705a7:0x3ffb1ef0 in std::_Function_handler<bool (AsyncWebSocketClient* const&),AsyncWebSocket::count() const::{lambda(AsyncWebSocketClient*)#1}>::_M_invoke(std::_Any_data const&,AsyncWebSocketClient* const&) at .pio\libdeps\esp32doit-devkit-v1\ESP Async WebServer\src/AsyncWebSocket.cpp:850
  #1  0x400d30db:0x3ffb1f10 in std::function<bool (AsyncWebSocketClient* const&)>::operator()(AsyncWebSocketClient* const&) const at .pio\libdeps\esp32doit-devkit-v1\ESP Async WebServer\src/AsyncWebSocket.cpp:850
  #2  0x400d31e9:0x3ffb1f30 in LinkedList<AsyncWebSocketClient*,LinkedListNode>::count_if(std::function<bool (AsyncWebSocketClient* const&)>) const at .pio\libdeps\esp32doit-devkit-v1\ESP Async WebServer\src/AsyncWebSocket.cpp:850
      (inlined by) AsyncWebSocket::count() const at .pio\libdeps\esp32doit-devkit-v1\ESP Async WebServer\src/AsyncWebSocket.cpp:904
  #3  0x400d3231:0x3ffb1f70 in AsyncWebSocket::cleanupClients(unsigned short) at .pio\libdeps\esp32doit-devkit-v1\ESP Async WebServer\src/AsyncWebSocket.cpp:850
  #4  0x400d0ed4:0x3ffb1f90 in loop() at src/main.cpp:82
  #5  0x400dffdd:0x3ffb1fb0 in loopTask(void*) at C:\Users\_Terminal\.platformio\packages\framework-arduinoespressif32\cores\esp32/main.cpp:23    
  #6  0x40089832:0x3ffb1fd0 in vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/port.c:355 (discriminator 1)

Rebooting...
ets Jun  8 2016 00:22:57

rst:0xc (SW_cpu_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0,SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:dio,clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5828
entry 0x400806a8

代码：正面

<script>
  var gateway = `ws://192.168.0.105/ws`;
  var websocket;
  window.addEventListener('load',onLoad);
  function initWebSocket() {
    console.log('Trying to open a WebSocket connection...');
    websocket = new WebSocket(gateway);
    websocket.onopen    = onopen;
    websocket.onclose   = onClose;
    websocket.onmessage = onMessage; // <-- add this line
  }
  function onopen(event) {
    console.log('Connection opened');
  }
  function onClose(event) {
    console.log('Connection closed');
    setTimeout(initWebSocket,2000);
  }
  function onMessage(event) {
    var state;
    if (event.data == "1"){
      state = "ON";
    }
    else{
      state = "OFF";
    }
    document.getElementById('state').innerHTML = state;
  }
  function onLoad(event) {
    initWebSocket();
    initButton();
  }
  function initButton() {
    document.getElementById('button').addEventListener('click',toggle);
  }
  function toggle(){
    websocket.send('toggle');
  }
</script>

代码：Esp

// Import required libraries
#include <WiFi.h>
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>

// Replace with your network credentials
const char* ssid = "home";
const char* password = "qwertyui";

bool ledState = 0;
const int ledPin = 26; 

// Create AsyncWebServer object on port 80
AsyncWebServer server(80);
AsyncWebSocket ws("/ws");



void onEvent(AsyncWebSocket * server,AsyncWebSocketClient * client,AwsEventType type,void * arg,uint8_t *data,size_t len) {
  if(type == WS_EVT_CONNECT){
    Serial.printf("New Client #%u from %s\n",client->id(),client->remoteIP().toString().c_str());
    client->ping();
  }
  else if(type == WS_EVT_disCONNECT){
    Serial.printf("ws[%s][%u] disconnect: %u\n",server->url(),client->id());
  }
  else if(type == WS_EVT_ERROR){
    Serial.printf("ws[%s][%u] error(%u): %s\n",*((uint16_t*)arg),(char*)data);
  }
  else if(type == WS_EVT_PONG){
    Serial.printf("ws[%s][%u] pong[%u]: %s\n",len,(len)?(char*)data:"");
  }
  else if(type == WS_EVT_DATA){
    AwsFrameInfo* info = (AwsFrameInfo*)arg;

    if(info->final && info->index==0 && info->len == len){
      Serial.printf("ws[%s][%u] %s-message[%llu]: ",(info->opcode == WS_TEXT)?"text":"binary",info->len);

      if(info->opcode == WS_TEXT){
        data[len] = 0;
        Serial.printf("%s\n",(char*)data);
        if(strcmp((char*)data,"toggle")==0){
          ledState = !ledState;
          digitalWrite(ledPin,ledState);
        }
      } 
    }
  }
}


void setup(){
  // Serial port for debugging purposes
  Serial.begin(115200);

  pinMode(ledPin,OUTPUT);
  
  // Connect to Wi-Fi
  WiFi.begin(ssid,password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi..");
  }

  // Print ESP Local IP Address
  Serial.println(WiFi.localIP());

  ws.onEvent(onEvent);
  server.addHandler(&ws);

  // Start server
  server.begin();
}

void loop() {
  ws.cleanupClients();
}

解决方法

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arduino-esp32 esp32 webserver webserver websocket websocket websocket