Time.h

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/*
* Copyright Onix Solutions Limited [OnixS]. All rights reserved.
*
* This software owned by Onix Solutions Limited [OnixS] and is protected by copyright law
* and international copyright treaties.
*
* Access to and use of the software is governed by the terms of the applicable OnixS Software
* Services Agreement (the Agreement) and Customer end user license agreements granting
* a non-assignable, non-transferable and non-exclusive license to use the software
* for it's own data processing purposes under the terms defined in the Agreement.
*
* Except as otherwise granted within the terms of the Agreement, copying or reproduction of any part
* of this source code or associated reference material to any other location for further reproduction
* or redistribution, and any amendments to this copyright notice, are expressly prohibited.
*
* Any reproduction or redistribution for sale or hiring of the Software not in accordance with
* the terms of the Agreement is a violation of copyright law.
*/
 
#pragma once
 
#if defined __linux__
#include <unistd.h>
#include <sys/time.h>
#endif
 
#include "OnixS/MTS/Cash/SDP/Defines.h"
 
#include <ostream>
#include <string>
 
namespace OnixS {
namespace Mts {
namespace Cash {
namespace SDP {
 
#if defined _WIN32
 
typedef
unsigned __int64
AbsoluteHighResolutionTimeImpl;
 
typedef
__int64
RelativeHighResolutionTimeImpl;
 
#elif defined __linux__
 
typedef timeval AbsoluteHighResolutionTimeImpl;
typedef struct Nothing {} RelativeHighResolutionTimeImpl;
#else
 
#error High resolution time services are not defined for a given platform.
 
#endif
typedef AbsoluteHighResolutionTimeImpl Timestamp;

struct ONIXS_MTS_CASH_SDP_API HighResolutionTimeFields
{
    unsigned short year;
    unsigned short month;
    unsigned short day;
 
    unsigned short hour;
    unsigned short minute;
    unsigned short seconds;
 
    unsigned int microseconds;

    void fromAbsolute (const AbsoluteHighResolutionTimeImpl&);

    void toAbsolute (AbsoluteHighResolutionTimeImpl*) const;

    void fromString (const std::string&);

    std::string toString() const;
};
 
typedef long long HighResolutionTimeSpan;

class ONIXS_MTS_CASH_SDP_API HighResolutionTime
{
public:
    HighResolutionTime();

    HighResolutionTime (UInt64);

    HighResolutionTime (const HighResolutionTimeFields&);

    HighResolutionTime (const HighResolutionTime&);

    bool isValid() const;

    void getFields (HighResolutionTimeFields* fields) const;

    std::string toString() const;

    void setToNow();

    bool operator == (const HighResolutionTime&) const;

    bool operator != (const HighResolutionTime&) const;

    HighResolutionTimeSpan operator - (const HighResolutionTime&) const;

    HighResolutionTime& operator = (const HighResolutionTime&);

    static HighResolutionTime now();

    static HighResolutionTime parse (const std::string& time);
 
protected:
    friend struct TimestampHelpers;
#if defined _WIN32
    static HighResolutionTime createFromRelative (RelativeHighResolutionTimeImpl value);
#elif defined __linux__
    static HighResolutionTime createFromAbsolute (AbsoluteHighResolutionTimeImpl value);
#endif
private:
    enum ValueKind { Invalid, Absolute, Relative };
 
    union Value
    {
        AbsoluteHighResolutionTimeImpl asAbsolute;
        RelativeHighResolutionTimeImpl asRelative;
    };
 
    Value value_;
    ValueKind kind_;
 
    HighResolutionTime (ValueKind kind);
};
 
inline bool HighResolutionTime::isValid() const
{
    return ! (Invalid == kind_);
}
 
ONIXS_MTS_CASH_SDP_API std::ostream& operator << (std::ostream& os, const HighResolutionTime&);
}
}
}
}