C++ – Performing equivalent of “Kill Process Tree” in C++ on windows

ckillwindows

We have a C++ task that will fork a new process. That process in turn may have several child processes. If the task runs past an allotted time, we will want to kill that forked process.

However, we don't want to orphan the processes it has spawned. We want them all to die. I have used Process Explorer and it has a "Kill Process Tree" option, similar to Windows Task Manager's "End Process Tree", so I'm guessing/assuming there is a public API to do this. Has anyone done this, or know of a reference to a public API that does?

Best Answer

You might want to consider the "Jobs API". CreateJobObject and friends. You can enforce children processes to stay within the Job, by setting appropriate attribute. Then you can call TerminateJobObject whenever you want.

Clarification: this is NOT what Task Manager does.

New answer, powershell

TCP

Get-Process -Id (Get-NetTCPConnection -LocalPort YourPortNumberHere).OwningProcess

UDP

Get-Process -Id (Get-NetUDPEndpoint -LocalPort YourPortNumberHere).OwningProcess

Old answer, cmd

 C:\> netstat -a -b

(Add -n to stop it trying to resolve hostnames, which will make it a lot faster.)

Note Dane's recommendation for TCPView. It looks very useful!

-a Displays all connections and listening ports.

-b Displays the executable involved in creating each connection or listening port. In some cases well-known executables host multiple independent components, and in these cases the sequence of components involved in creating the connection or listening port is displayed. In this case the executable name is in [] at the bottom, on top is the component it called, and so forth until TCP/IP was reached. Note that this option can be time-consuming and will fail unless you have sufficient permissions.

-n Displays addresses and port numbers in numerical form.

-o Displays the owning process ID associated with each connection.

Windows – “rm -rf” equivalent for Windows

RMDIR or RD if you are using the classic Command Prompt (cmd.exe):

rd /s /q "path"

RMDIR [/S] [/Q] [drive:]path

RD [/S] [/Q] [drive:]path

/S Removes all directories and files in the specified directory in addition to the directory itself. Used to remove a directory tree.

/Q Quiet mode, do not ask if ok to remove a directory tree with /S

If you are using PowerShell you can use Remove-Item (which is aliased to del, erase, rd, ri, rm and rmdir) and takes a -Recurse argument that can be shorted to -r

rd -r "path"

Best Answer

Related Solutions

Windows – How to you find out which process is listening on a TCP or UDP port on Windows

New answer, powershell

TCP

UDP

Old answer, cmd

Windows – “rm -rf” equivalent for Windows

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