[API Proposal]: Kill System.Diagnostics.Process on parent death #101985
Description
Background and motivation
Currently in .NET there is no way to ensure that a child process created through System.Diagnostics.Process is killed when the parent process dies, particularly unexpectedly by a SIGKILL. This proposal creates a simple property in the ProcessStartInfo class that would cause a child process to be killed by the OS in these cases.
On Linux, this could be done very easily by setting the PR_SET_PDEATHSIG
flag on the fork using a prctl()
syscall.
I'm not too well versed with the Windows platform but I believe something with Job Objects is possible.
I've named the property KillOnParentDeath
, this can of course be changed if a better name is thought of
API Proposal
namespace System.Diagnostics;
public partial sealed class ProcessStartInfo
{
public bool KillOnParentDeath { get; set; }
}
API Usage
// Create a process
var proc = new System.Diagnostics.Process();
// Set KillOnParentDeath
proc.StartInfo.KillOnParentDeath = true;
// If this C# program is then killed for some reason, the child will die with it instead of lingering.
Alternative Designs
No response
Risks
None as far as I'm aware. The default value should of course be false
to emulate current behavior.
Activity