types.h

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/*******************************************************************************
 * Copyright (c) 2015-2017 Frank Pagliughi <fpagliughi@mindspring.com>
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * and Eclipse Distribution License v1.0 which accompany this distribution.
 *
 * The Eclipse Public License is available at
 *    http://www.eclipse.org/legal/epl-v20.html
 * and the Eclipse Distribution License is available at
 *   http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *    Frank Pagliughi - initial implementation and documentation
 *******************************************************************************/
 
#ifndef __mqtt_types_h
#define __mqtt_types_h
 
#include <chrono>
#include <memory>
#include <string>
#include <vector>
 
// Pull in reason codes here for backward compatability with old version
#include "mqtt/reason_code.h"
 
namespace mqtt {

// Basic data types

using byte = uint8_t;

using string = std::string;
using binary = std::string;

using string_ptr = std::shared_ptr<const string>;
using binary_ptr = std::shared_ptr<const binary>;

// Time functions

template <class Rep, class Period>
std::chrono::seconds to_seconds(const std::chrono::duration<Rep, Period>& dur) {
    return std::chrono::duration_cast<std::chrono::seconds>(dur);
}

template <class Rep, class Period>
long to_seconds_count(const std::chrono::duration<Rep, Period>& dur) {
    return (long)to_seconds(dur).count();
}

template <class Rep, class Period>
std::chrono::milliseconds to_milliseconds(const std::chrono::duration<Rep, Period>& dur) {
    return std::chrono::duration_cast<std::chrono::milliseconds>(dur);
}

template <class Rep, class Period>
long to_milliseconds_count(const std::chrono::duration<Rep, Period>& dur) {
    return (long)to_milliseconds(dur).count();
}

// Misc

inline bool to_bool(int n) { return n != 0; }
inline int to_int(bool b) { return b ? (!0) : 0; }

inline string to_string(const char* cstr) { return cstr ? string(cstr) : string(); }

}  // namespace mqtt
 
#endif  // __mqtt_types_h