// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT License.

package procutil

import (

"github.com/shirou/gopsutil/v4/process"

)

// IsProcessRunning checks if a process with the given PID is running.

// Works cross-platform (Windows, Linux, macOS, FreeBSD, OpenBSD, Solaris, AIX).

//

// This function uses github.com/shirou/gopsutil for reliable cross-platform

// process detection, including proper handling of stale PIDs on Windows.

func IsProcessRunning(pid int) bool {

if pid <= 0 {

return false

}

// Create a process handle

proc, err := process.NewProcess(int32(pid)) //nolint:gosec // G115: safe conversion, PIDs fit in int32

if err != nil {

// Process doesn't exist or can't be accessed

return false

}

// Check if process is running

// gopsutil handles platform differences correctly

isRunning, err := proc.IsRunning()

if err != nil {

// Error checking status, assume not running

return false

}

return isRunning

}