win32_get_last_control_message

(PECL win32service SVN)

win32_get_last_control_message — Returns the last control message that was sent to this service

说明

int win32_get_last_control_message ( void )

Returns the control code that was last sent to this service process. When running as a service you should periodically check this to determine if your service needs to stop running.

Caution

Since version 0.2.0, this function work only in "cli" SAPI. On other SAPI this function is disabled.

返回值

Returns a control constant which will be one of the Win32Service Service Control Message Constants: WIN32_SERVICE_CONTROL_CONTINUE, WIN32_SERVICE_CONTROL_INTERROGATE, WIN32_SERVICE_CONTROL_PAUSE, WIN32_SERVICE_CONTROL_PRESHUTDOWN, WIN32_SERVICE_CONTROL_SHUTDOWN, WIN32_SERVICE_CONTROL_STOP.

参见

win32_start_service_ctrl_dispatcher() - Registers the script with the SCM, so that it can act as the service with the given name
Win32Service Service Control Message Constants

User Contributed Notes

kermodebea at kermodebear dot Oh Are Gee 02-May-2006 08:35


The definitions of some of these control codes can be found here (URL broken due to comment system, sorry about that!): http://msdn.microsoft.com/library

/default.asp?url=/library/en-us/dllproc/base/handler.asp



However, for your convenience (and mine):

SERVICE_CONTROL_STOP, 0x00000001

Notifies a service that it should stop.



If a service accepts this control code, it must stop upon receipt. After the SCM sends this control code, it does not send other control codes.



Windows XP/2000:  If the service returns NO_ERROR and continues to run, it continues to receive control codes. This behavior changed starting with Windows Server 2003 and Windows XP SP2.



SERVICE_CONTROL_PAUSE, 0x00000002

Notifies a service that it should pause.

(Although I guess that there is no requirement that you must.)



SERVICE_CONTROL_CONTINUE, 0x00000003

Notifies a paused service that it should resume.



SERVICE_CONTROL_INTERROGATE, 0x00000004

Notifies a service that it should report its current status information to the service control manager.

(I'm guessing that a call to win32_set_service_status() would satisfy interrogation?)



SERVICE_CONTROL_SHUTDOWN, 0x00000005

Notifies a service that the system is shutting down so the service can perform cleanup tasks.