Waiting for a process to end? [VS9 C++]
On my system there is an application (App.exe) that runs, but sometimes it terminates (gracefully and expectantly). At the same time I have another application that, when App.exe is stopped, needs to perform certain tasks. So I need a way to monitor App.exe from my application.
Something like the following is what I am trying to accomplish
Code:
If (App.exe is running wait 360 seconds for it to terminate)
if (App.exe is not running anymore)
do the work I need to do when App.exe is NOT running
So, they KEY is:
- how do I evaluate if App.exe is running
- how do I wait 360 seconds for it to close (if it is still running)
Now this is not very difficult if my Application is the onw that started/spwaned App.exe (using CreateProcess and WaitForExit stuff), but in this case I am not the controlling agent ... so how do I monitor to see if App.exe is still running and consequently wait (for period of time X) for it to end before doing something specific?
Any hints, help, or recommendantions would be much appreciated.
Thanks,
Re: Waiting for a process to end? [VS9 C++]
App.exe can create a named kernel object (e.g. mutex). The watching app creates its own object with the same name. If App.exe is running (i.e. object already exists), the watching app can wait on the handle. Waking on the handle means the object has been dismissed by App.exe, which means the app got closed.
In case there is enough rights for watching app to open process handle, the app can look up for App.exe process id, open App.exe process handle and wait on it in the same manner.
