TimeStamp.hh

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#ifndef CRL_MULTISENSE_TIMESTAMP_HH
#define CRL_MULTISENSE_TIMESTAMP_HH
 
#if defined(WIN32)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
 
#include <windows.h>
#include <winsock2.h> // Provides a declaration for struct timeval
#else
#include <sys/time.h>
#endif
#include <stdint.h>
 
#include "utility/Portability.hh"
 
namespace crl {
namespace multisense {
namespace details {
namespace utility {
 
//
// This is a simple class that helps manage time for the rest of the system,
// abstracting it away into something that is more usable.
//
 
class MULTISENSE_API TimeStamp
{
private:
 
    //
    // The stored time.
    //
 
    struct timeval time;
 
#if defined (WIN32)
    static ULARGE_INTEGER offsetSecondsSince1970;
#endif
 
public:
 
    //
    // Static routines, for the singleton version of the TimeStamp.
    //
 
    static TimeStamp getCurrentTime();
 
    //
    // Public constructor. Initializes from a timestamp.
    //
 
    TimeStamp();
    TimeStamp(int32_t seconds, int32_t microSeconds);
    TimeStamp(int64_t nanoseconds);
    TimeStamp(const struct timeval& value);
 
    //
    // For setting the timestamp.
    //
 
    void set(const struct timeval& value);
    void set(int32_t seconds, int32_t microSeconds);
 
    //
    // Get the seconds portion of the underlying timeval
    // For getting precise values from the timestamp.
    //
 
    int32_t getSeconds() const;
 
    //
    // Get the microseconds portion of the underlying timeval
    // For getting precise values from the timestamp.
    //
 
    int32_t getMicroSeconds() const;
 
    //
    // Get the time in nanoseconds, aggregates seconds and microseconds
    //
 
    int64_t getNanoSeconds() const;
 
    //
    // Operator overloads, for working with time.
    //
 
    TimeStamp operator+(TimeStamp const& other) const;
    TimeStamp operator-(TimeStamp const& other) const;
    TimeStamp& operator+=(TimeStamp const& other);
    TimeStamp& operator-=(TimeStamp const& other);
 
};
 
}}}} // namespaces
 
#endif /* #ifndef CRL_MULTISENSE_TIMESTAMP_HH */