PYWIN32服务中的多处理

Question

当.EXE作为服务运行时，我的过程似乎并未创建。 该服务是用Pywin32创建的，该过程只能记录某些东西并睡觉。当.exe正常运行时，该过程确实可以正常工作，但是当它作为服务构建和安装时，它不起作用。 .EXE与Pyinstaller一起构建。 这就是我创建服务的方式：

class TestService(win32serviceutil.ServiceFramework):
_svc_name_ = "Test_SERVICE"
_svc_display_name_ = "Test_SERVICE"
_svc_description_ = "Any Description"

def SvcStop(self):
    """
    Stops the server and the service
    """
    # report method also sets the status of the service
    self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
    self.ReportServiceStatus(win32service.SERVICE_STOPPED)
    servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                          servicemanager.PYS_SERVICE_STOPPED,
                          (TestService._svc_name_, 'SVC Stop'))

def SvcDoRun(self):
    """
    Call the main method to start the service
    """
    servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                          servicemanager.PYS_SERVICE_STARTING,
                          (TestService._svc_name_, 'SVC RUN'))
    try:
        self.main()
    except Exception:  # pylint: disable=broad-except
        servicemanager.LogMsg(servicemanager.EVENTLOG_ERROR_TYPE,
                              servicemanager.PYS_SERVICE_STOPPED,
                              (TestService._svc_name_,
                               traceback.format_exc()))
    else:
        servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                              servicemanager.PYS_SERVICE_STOPPED,
                              (TestService._svc_name_, ''))

def main(self):
    """
    Starts the service
    """
    multiprocessing.freeze_support()
    execute()

if len(sys.argv) == 1:
# If there is no cmdline argument, app was started by windows service manager.
# assuming here we are running 'frozen'
    if not hasattr(sys, 'frozen'):
        print(
        "Can't start, need a frozen setup (executable created with pyinstaller) when started without arguments!\n")
        win32serviceutil.usage()
        sys.exit(1)
    try:
        # start service according to http://stackoverflow.com/questions/25770873/python-windows-service-pyinstaller-executables-error-1053,at the bottom
        servicemanager.Initialize()
        servicemanager.PrepareToHostSingle(TestService)
        servicemanager.StartServiceCtrlDispatcher()

    except Exception as error:
        # log any exception that occurs during startup
        servicemanager.LogMsg(servicemanager.EVENTLOG_ERROR_TYPE,
                          servicemanager.PYS_SERVICE_STOPPED,
                          (TestService._svc_name_, error))
    raise
else:
    win32serviceutil.HandleCommandLine(TestService)

这是新过程的执行方法：

def execute():
    proc = Process(target=log_and_sleep)
    proc.start()
    proc.join()

def log_and_sleep():
    servicemanager.LogInfoMsg('Test')
    time.sleep(10)

新过程中的日志消息将在Windows事件日志中以服务作为服务后立即出现。

谁能如何正确创建新过程以在服务内部运行？