43 lines
1.7 KiB
C++
43 lines
1.7 KiB
C++
#ifndef MBGL_UTIL_TIME
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#define MBGL_UTIL_TIME
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#include <uv.h>
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namespace mbgl {
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typedef uint64_t timestamp;
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namespace util {
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// Returns time in nanoseconds since an arbitrary point in the past. This has
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// no relation to the current time, but is continuously increasing, so
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// comparisons between different timestamps produce meaningful values.
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inline timestamp now() {
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return uv_hrtime();
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}
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}
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// used for time conversions
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constexpr timestamp operator"" _nanoseconds (long double ns) { return ns; }
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constexpr timestamp operator"" _nanosecond (long double ns) { return ns; }
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constexpr timestamp operator"" _microseconds (long double us) { return us * 1e3; }
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constexpr timestamp operator"" _microsecond (long double us) { return us * 1e3; }
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constexpr timestamp operator"" _milliseconds (long double ms) { return ms * 1e6; }
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constexpr timestamp operator"" _millisecond (long double ms) { return ms * 1e6; }
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constexpr timestamp operator"" _seconds (long double s) { return s * 1e9; }
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constexpr timestamp operator"" _second (long double s) { return s * 1e9; }
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constexpr timestamp operator"" _nanoseconds (unsigned long long ns) { return ns; }
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constexpr timestamp operator"" _nanosecond (unsigned long long ns) { return ns; }
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constexpr timestamp operator"" _microseconds (unsigned long long us) { return us * 1e3; }
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constexpr timestamp operator"" _microsecond (unsigned long long us) { return us * 1e3; }
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constexpr timestamp operator"" _milliseconds (unsigned long long ms) { return ms * 1e6; }
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constexpr timestamp operator"" _millisecond (unsigned long long ms) { return ms * 1e6; }
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constexpr timestamp operator"" _seconds (unsigned long long s) { return s * 1e9; }
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constexpr timestamp operator"" _second (unsigned long long s) { return s * 1e9; }
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}
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#endif
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