pulsar-client-cpp/lib/Utils.h

/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef UTILS_HPP_
#define UTILS_HPP_

#include <pulsar/Result.h>

#include "Future.h"

namespace pulsar {

struct WaitForCallback {
    Promise<bool, Result>& m_promise;

    WaitForCallback(Promise<bool, Result>& promise)
            : m_promise(promise) {
    }

    void operator()(Result result) {
        m_promise.setValue(result);
    }
};

template<typename T>
struct WaitForCallbackValue {
    Promise<Result, T> & m_promise;

    WaitForCallbackValue(Promise<Result, T>& promise)
            : m_promise(promise) {
    }

    void operator()(Result result, const T& value) {
        if (result == ResultOk) {
            m_promise.setValue(value);
        } else {
            m_promise.setFailed(result);
        }
    }
};

template<typename T>
struct WaitForCallbackType {
    Promise<Result, T>& m_promise;

    WaitForCallbackType(Promise<Result, T>& promise)
            : m_promise(promise) {
    }

    void operator()(T result) {
        m_promise.setValue(result);
    }
};

}

#endif /* UTILS_HPP_ */