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std/time ​

Wall clock and high-resolution timing.

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from "std/time" import { Instant, Duration, now, elapsed, since, sleepMs, epochMillis }

Types ​

Instant ​

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struct Instant {
    sec: i64,
    usec: i64,
}

A point in time from the system clock.

Duration ​

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struct Duration {
    totalUsec: i64,
}

A span of time in microseconds.

Functions ​

now ​

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fn now(): Instant

Returns the current time.

epochMillis ​

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fn epochMillis(): i64

Returns milliseconds since the Unix epoch.

epochSecs ​

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fn epochSecs(): i64

Returns seconds since the Unix epoch.

elapsed ​

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fn elapsed(start: Instant, end: Instant): Duration

Returns the duration between two instants.

since ​

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fn since(start: Instant): Duration

Returns the duration from start until now.

durationSecs ​

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fn durationSecs(d: &Duration): i64

Extracts whole seconds from a duration.

durationMillis ​

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fn durationMillis(d: &Duration): i64

Extracts whole milliseconds from a duration.

durationMicros ​

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fn durationMicros(d: &Duration): i64

Extracts microseconds from a duration.

sleepMs ​

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fn sleepMs(ms: i64)

Sleeps for the given number of milliseconds.

sleepSecs ​

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fn sleepSecs(secs: i64)

Sleeps for the given number of seconds.

Example ​

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let start = now()
// ... do work ...
let d = since(start)
print("took " + intToString(durationMillis(&d)) + "ms")