SoftMixingMixerProvider.java 文件源码

public Mixer getMixer(Info info) {
    if (!(info == null || info == SoftMixingMixer.info)) {
        throw new IllegalArgumentException("Mixer " + info.toString()
                + " not supported by this provider.");
    }
    synchronized (mutex) {
        if (lockthread != null)
            if (Thread.currentThread() == lockthread)
                throw new IllegalArgumentException("Mixer "
                        + info.toString()
                        + " not supported by this provider.");
        if (globalmixer == null)
            globalmixer = new SoftMixingMixer();
        return globalmixer;
    }

}