pythread的重写与使用

# -*- coding: utf-8 -*-
# Name:         demo.py
# Author:       小菜
# Date:         2023/5/4
# Description:

import sys
from engineTelnet import WorkerTelnetProxy
from PySide6.QtCore import (QThread, QWaitCondition, QMutex, Signal, QMutexLocker)

class MyThread(QThread):
    valueChange = Signal(int)

    def __init__(self, parent=None):
        super().__init__(parent=parent)
        self.is_paused = bool(0)  # 标记线程是否暂停
        self.progress_value = int(0)  # 进度值
        self.mutex = QMutex()  # 互斥锁，用于线程同步
        self.cond = QWaitCondition()  # 等待条件，用于线程暂停和恢复
        self.telnet = WorkerTelnetProxy()
        self.log = ""
        self.cmds = None

    # def pause_thread(self):
    #     with QMutexLocker(self.mutex):
    #         self.is_paused = True  # 设置线程为暂停状态
    #
    # def resume_thread(self):
    #     if self.is_paused:
    #         with QMutexLocker(self.mutex):
    #             self.is_paused = False  # 设置线程为非暂停状态
    #             self.cond.wakeOne()  # 唤醒一个等待的线程
    def setCmd(self,cmds):
        self.cmds = cmds

    def getLog(self):
        return self.log

    def stop(self):
        self.telnet.destroyEngine()

    def run(self):
        try:
            res = self.telnet.start()
        except Exception as e:
            self.log =  str(e)+"\ntelnet connect fail!" + "\n" +"please check telnet \n"
            self.valueChange.emit(100000)
            return False

        self.log = None
        for cmd in self.cmds:
            print("into the cmd command!\n")
            #self.log += str(cmd)
            print("the cmd is :{}\n".format(cmd))
            response = self.telnet.startcmd(cmd)
            self.log = str(cmd) +":\n" +str(response)+"\n"
            self.valueChange.emit(1)
        self.cmds = []
        self.valueChange.emit(100000)

将方法封装在thread类中.

因为使用到telnet的交互会产生阻塞，如果放在主窗口中进行调用，会出现主窗口在telnet的阻塞的时候发生卡住。现在将这一部分放在thread的 run方法中。在使用thread.start()进行方法的调用，让telnet自己在线程中去跑，在跑完后通过信号量的发送，将结果在取回。这样处理掉了主窗口因为阻塞而卡顿的问题