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NsecTimeUtilities.hpp
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33 
42 #ifndef INCLUDE_OKVIS_TIMING_NSECTIMEUTILITIES_HPP_
43 #define INCLUDE_OKVIS_TIMING_NSECTIMEUTILITIES_HPP_
44 #include <chrono>
45 #include <boost/cstdint.hpp>
46 
47 namespace okvis {
48 namespace timing {
49 
51 typedef boost::int64_t NsecTime;
52 
54 std::chrono::system_clock::time_point nsecToChrono( const NsecTime & time );
55 
57 NsecTime chronoToNsec( const std::chrono::system_clock::time_point & time );
58 
61 
63 double nsecToSec( const NsecTime & time );
64 
66 NsecTime secToNsec( const double & time );
67 
69 constexpr NsecTime getInvalidTime();
70 
73 bool isValid(const NsecTime & time);
74 
75 } // namespace timing
76 } // namespace okvis
77 
78 #endif /* INCLUDE_OKVIS_TIMING_NSECTIMEUTILITIES_HPP_ */
NsecTime chronoToNsec(const std::chrono::system_clock::time_point &time)
Convert std::chrono to nanoseconds since the epoch.
Definition: NsecTimeUtilities.cpp:48
NsecTime secToNsec(const double &time)
Convert the time (in seconds) to integer nanoseconds.
Definition: NsecTimeUtilities.cpp:67
constexpr NsecTime getInvalidTime()
return a magic number representing an invalid timestamp
Definition: NsecTimeUtilities.cpp:71
std::chrono::system_clock::time_point nsecToChrono(const NsecTime &time)
Convert nanoseconds since the epoch to std::chrono.
Definition: NsecTimeUtilities.cpp:40
boost::int64_t NsecTime
Nanoseconds since the epoch.
Definition: NsecTimeUtilities.hpp:51
NsecTime nsecNow()
Get the epoch time as nanoseconds since the epoch.
Definition: NsecTimeUtilities.cpp:54
bool isValid(const NsecTime &time)
Is the time valid? This uses a magic number std::numeric_limits<NsecTime>::min() to represent an inva...
Definition: NsecTimeUtilities.cpp:75
double nsecToSec(const NsecTime &time)
Convert the time (in integer nanoseconds) to decimal seconds.
Definition: NsecTimeUtilities.cpp:61