fit the memory usage for esp32c3

main/background_task.h

@@ -0,0 +1,33 @@
+#ifndef BACKGROUND_TASK_H
+#define BACKGROUND_TASK_H
+
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <mutex>
+#include <list>
+#include <condition_variable>
+#include <atomic>
+
+class BackgroundTask {
+public:
+    BackgroundTask(uint32_t stack_size = 4096 * 2);
+    ~BackgroundTask();
+
+    void Schedule(std::function<void()> callback);
+    void WaitForCompletion();
+
+private:
+    std::mutex mutex_;
+    std::list<std::function<void()>> main_tasks_;
+    std::condition_variable condition_variable_;
+    TaskHandle_t background_task_handle_ = nullptr;
+    std::atomic<size_t> active_tasks_{0};
+
+    TaskHandle_t task_ = nullptr;
+    StaticTask_t task_buffer_;
+    StackType_t* task_stack_ = nullptr;
+
+    void BackgroundTaskLoop();
+};
+
+#endif