timeString.hpp

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#ifndef RTCTK_COMPONENTFRAMEWORK_TIMESTRING_HPP
#define RTCTK_COMPONENTFRAMEWORK_TIMESTRING_HPP
 
#include <rtctk/componentFramework/jsonPayload.hpp>
 
#include <chrono>
#include <string>
 
namespace rtctk::componentFramework {

struct TimeString {
    TimeString() = default;

    operator std::string() const;

    const std::string& ToString() const;

    bool operator==(const TimeString&) const = default;  // NOLINT

    // Implicit conversions should be allowed for TimeString.
    // cppcheck-suppress noExplicitConstructor
    TimeString(const std::string& str);

    // cppcheck-suppress noExplicitConstructor
    TimeString(const char* str);  // NOLINT

    template <typename Clock, typename Duration = typename Clock::duration>
    // cppcheck-suppress noExplicitConstructor
    TimeString(std::chrono::time_point<Clock, Duration> timepoint)
        : value(std::format(
              "{0:%F}T{0:%T}.{1:03d}Z",
              std::chrono::floor<std::chrono::seconds>(timepoint),
              std::chrono::duration_cast<std::chrono::milliseconds>(timepoint.time_since_epoch())
                      .count() %
                  1000)) {
    }

    // cppcheck-suppress noExplicitConstructor
    TimeString(std::chrono::nanoseconds ns_since_epoch);

    // cppcheck-suppress noExplicitConstructor
    TimeString(uint64_t ns_since_epoch);
 
    std::string value;
};
 
void to_json(JsonPayload& j, const TimeString& e);    // NOLINT
void from_json(const JsonPayload& j, TimeString& e);  // NOLINT
 
}  // namespace rtctk::componentFramework
 
#endif  // RTCTK_COMPONENTFRAMEWORK_TIMESTRING_HPP