90 lines
2.7 KiB
Python
90 lines
2.7 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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程序主入口 (双线程生产者-消费者模型)
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主线程 (生产者):
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- 职责：以最高优先级不间断监听LoRa数据，并将数据包放入任务队列。
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- 特点：永远不执行耗时操作，保证LoRa数据接收的实时性。
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工作线程 (消费者):
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- 职责：从任务队列中取出数据包，并进行耗时的业务处理。
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- 特点：可能会长时间阻塞，但不影响主线程的数据接收。
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"""
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import time
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import _thread
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from app.config import config
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from app.uqueue import Queue # 导入我们自己创建的本地uqueue模块
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# 导入接口和实现
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from app.lora.lora_mesh_uart_passthrough_manager import LoRaMeshUartPassthroughManager
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from app.bus.rs485_manager import RS485Manager
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from app.processor import Processor
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# 导入工作线程的执行函数
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from app.worker import worker_task
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from app.logs.logger import log
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# --- 模块级变量定义 (带有类型提示) ---
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lora_manager: LoRaMeshUartPassthroughManager | None = None
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bus_manager: RS485Manager | None = None
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processor: Processor | None = None
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task_queue: Queue | None = None
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def setup():
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"""
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初始化函数，负责创建所有对象实例、共享队列，并启动工作线程。
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"""
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global lora_manager, bus_manager, processor, task_queue
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log("--- 系统初始化开始 ---")
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# 1. 初始化硬件驱动和业务处理器
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lora_manager = LoRaMeshUartPassthroughManager(config.LORA_CONFIG)
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bus_manager = RS485Manager(config.BUS_CONFIG, config.DEFAULT_TIMEOUTS)
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processor = Processor(lora_handler=lora_manager, bus_manager=bus_manager)
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# 2. 从配置文件读取队列长度，并创建线程安全的队列
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queue_size = config.SYSTEM_PARAMS.get('task_queue_max_size', 10)
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task_queue = Queue(maxsize=queue_size)
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log(f"任务队列已创建，最大容量: {queue_size}")
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# 3. 启动工作线程
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_thread.start_new_thread(worker_task, (task_queue, processor))
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log("--- 系统初始化完成 ---")
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def loop():
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"""
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主线程循环函数 (生产者)。
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只负责监听LoRa，并将数据放入队列。
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"""
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packet = lora_manager.receive_packet()
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if packet:
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if task_queue.full():
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log("警告：任务队列已满，新的LoRa数据包被丢弃！")
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return
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try:
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task_queue.put_nowait(packet)
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log(f"主线程：新LoRa数据包已入队。当前队列大小: {task_queue.qsize()}")
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except Exception as e:
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log(f"错误：数据包入队失败: {e}")
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time.sleep_ms(10)
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# --- 程序主执行区 ---
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if __name__ == "__main__":
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setup()
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log("--- 主线程进入循环 (LoRa监听) ---")
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while True:
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loop()
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