BoringSSLTask Class — netty Architecture

Source Code

codec-classes-quic/src/main/java/io/netty/handler/codec/quic/BoringSSLTask.java lines 21–60

abstract class BoringSSLTask implements Runnable {
    private final long ssl;
    protected boolean didRun;

    // These fields are accessed via JNI.
    private int returnValue;
    private volatile boolean complete;

    protected BoringSSLTask(long ssl) {
        // It is important that this constructor never throws. Be sure to not change this!
        this.ssl = ssl;
    }

    @Override
    public final void run() {
        if (!didRun) {
            didRun = true;
            runTask(ssl, (long ssl, int result) -> {
                returnValue = result;
                complete = true;
            });
        }
    }

    /**
     * Called once the task should be destroyed.
     */
    protected void destroy() {
        // Noop
    }

    /**
     * Run the task and return the return value that should be passed back to OpenSSL.
     */
    protected abstract void runTask(long ssl, TaskCallback callback);

    interface TaskCallback {
        void onResult(long ssl, int result);
    }
}