diff --git a/lib/osutil/lowprio_windows.go b/lib/osutil/lowprio_windows.go index 2e90705c..45793208 100644 --- a/lib/osutil/lowprio_windows.go +++ b/lib/osutil/lowprio_windows.go @@ -6,42 +6,8 @@ package osutil -import ( - "syscall" - - "github.com/pkg/errors" -) - -var ( - kernel32, _ = syscall.LoadLibrary("kernel32.dll") - setPriorityClass, _ = syscall.GetProcAddress(kernel32, "SetPriorityClass") -) - -const ( - // https://msdn.microsoft.com/en-us/library/windows/desktop/ms686219(v=vs.85).aspx - aboveNormalPriorityClass = 0x00008000 - belowNormalPriorityClass = 0x00004000 - highPriorityClass = 0x00000080 - idlePriorityClass = 0x00000040 - normalPriorityClass = 0x00000020 - processModeBackgroundBegin = 0x00100000 - processModeBackgroundEnd = 0x00200000 - realtimePriorityClass = 0x00000100 -) - // SetLowPriority lowers the process CPU scheduling priority, and possibly // I/O priority depending on the platform and OS. func SetLowPriority() error { - handle, err := syscall.GetCurrentProcess() - if err != nil { - return errors.Wrap(err, "get process handler") - } - defer syscall.CloseHandle(handle) - - res, _, err := syscall.Syscall(uintptr(setPriorityClass), uintptr(handle), belowNormalPriorityClass, 0, 0) - if res != 0 { - // "If the function succeeds, the return value is nonzero." - return nil - } - return errors.Wrap(err, "set priority class") // wraps nil as nil + return nil }