def currentOs = OperatingSystem.current()
        if (currentOs.macOsX) {
            // macOS coalesces the changes if the are in short succession
            return numberOfChangedFiles * numberOfChangesPerFile * LOST_EVENTS_RATIO_MAC_OS
        } else if (currentOs.linux) {
            // the JDK watchers only capture one event per watched path

    }

    public static OperatingSystem current() {
        if (currentOs == null) {
            currentOs = forName(System.getProperty("os.name"));
        }
        return currentOs;
    }

    // for testing current()
    static void resetCurrent() {
        currentOs = null;
    }

    public static OperatingSystem forName(String os) {

    @ToBeFixedForConfigurationCache
    def "can configure binary for multiple target operating systems"() {
        String currentOs
        if (os.windows) {
            currentOs = "windows"
        } else if (os.linux) {
            currentOs = "linux"
        } else if (os.macOsX) {
            currentOs = "osx"
        } else {
            throw new AssertionError("Unexpected operating system")
        }

      assert(!AtEnd());
      ++current6_;
      if (current6_ == end6_) {
        current6_ = begin6_;
        ++current5_;
      }
      if (current5_ == end5_) {
        current5_ = begin5_;
        ++current4_;
      }
      if (current4_ == end4_) {
        current4_ = begin4_;
        ++current3_;
      }
      if (current3_ == end3_) {
        current3_ = begin3_;
        ++current2_;

      assert(!AtEnd());
      ++current6_;
      if (current6_ == end6_) {
        current6_ = begin6_;
        ++current5_;
      }
      if (current5_ == end5_) {
        current5_ = begin5_;
        ++current4_;
      }
      if (current4_ == end4_) {
        current4_ = begin4_;
        ++current3_;
      }
      if (current3_ == end3_) {
        current3_ = begin3_;
        ++current2_;

    def platform = Stub(NativePlatformInternal)

    def dummyOs = new DefaultOperatingSystem("currentOS", OperatingSystem.current())
    def dummyArch = Architectures.forInput("x86_64")

    def "is unavailable when platform is not known and is not the default platform"() {
        given:
        platform.displayName >> '<unknown>'

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