31 lines
		
	
	
		
			594 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			594 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package lockfile
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import (
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	"syscall"
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)
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//For some reason these consts don't exist in syscall.
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const (
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	error_invalid_parameter = 87
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	code_still_active       = 259
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)
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func isRunning(pid int) (bool, error) {
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	procHnd, err := syscall.OpenProcess(syscall.PROCESS_QUERY_INFORMATION, true, uint32(pid))
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	if err != nil {
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		if scerr, ok := err.(syscall.Errno); ok {
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			if uintptr(scerr) == error_invalid_parameter {
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				return false, nil
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			}
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		}
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	}
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	var code uint32
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	err = syscall.GetExitCodeProcess(procHnd, &code)
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	if err != nil {
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		return false, err
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	}
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	return code == code_still_active, nil
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}
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