getting undefined reference to `pxCurrentTCB'

[joeysmart]

when building with esp-idf v5.3.1 for esp32s3 I am getting: -devkitm-1/lib751/libESP Async WebServer.a(AsyncWebSocket.cpp.o):(.literal._ZN17AsyncWebLockGuardC5ERK12AsyncWebLock[_ZN17AsyncWebLockGuardC5ERK12AsyncWebLock]+0x0): undefined reference to `pxCurrentTCB' collect2: error: ld returned 1 exit status *** [.pio/build/esp32-s3-devkitm-1/firmware.elf] Error 1

seems pxCurrentTCB is now pxCurrentTCBs and is an array (SMP) is referenced in the class AsyncWebLock currently I have no idea how to fix it

[sepp89117]

Hi, I just had the same problem. Replace

  bool lock() const {
    extern void *pxCurrentTCB;
    if (_lockedBy != pxCurrentTCB) {
      xSemaphoreTake(_lock, portMAX_DELAY);
      _lockedBy = pxCurrentTCB;
      return true;
    }
    return false;
  }

with

  bool lock() const {
    TaskHandle_t currentTask = xTaskGetCurrentTaskHandle();
    if (_lockedBy != currentTask) {
        xSemaphoreTake(_lock, portMAX_DELAY);
        _lockedBy = currentTask;
        return true;
    }
    return false;
  }

in AsyncWebSynchronization.h and it should work.

[qinsmoons]

when building with esp-idf v5.3.1 for esp32s3 I am getting: -devkitm-1/lib751/libESP Async

Hi, I just had the same problem. Replace

  bool lock() const {
    extern void *pxCurrentTCB;
    if (_lockedBy != pxCurrentTCB) {
      xSemaphoreTake(_lock, portMAX_DELAY);
      _lockedBy = pxCurrentTCB;
      return true;
    }
    return false;
  }

with

  bool lock() const {
    TaskHandle_t currentTask = xTaskGetCurrentTaskHandle();
    if (_lockedBy != currentTask) {
        xSemaphoreTake(_lock, portMAX_DELAY);
        _lockedBy = currentTask;
        return true;
    }
    return false;
  }

in AsyncWebSynchronization.h and it should work.

thanks，it works！