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Contents

package wasi:clocks@0.2.3;
/// WASI Monotonic Clock is a clock API intended to let users measure elapsed
/// time.
///
/// It is intended to be portable at least between Unix-family platforms and
/// Windows.
///
/// A monotonic clock is a clock which has an unspecified initial value, and
/// successive reads of the clock will produce non-decreasing values.
@since(version = 0.2.0)
interface monotonic-clock {
    @since(version = 0.2.0)
    use wasi:io/poll@0.2.3.{pollable};

    /// An instant in time, in nanoseconds. An instant is relative to an
    /// unspecified initial value, and can only be compared to instances from
    /// the same monotonic-clock.
    @since(version = 0.2.0)
    type instant = u64;

    /// A duration of time, in nanoseconds.
    @since(version = 0.2.0)
    type duration = u64;

    /// Read the current value of the clock.
    ///
    /// The clock is monotonic, therefore calling this function repeatedly will
    /// produce a sequence of non-decreasing values.
    @since(version = 0.2.0)
    now: func() -> instant;

    /// Query the resolution of the clock. Returns the duration of time
    /// corresponding to a clock tick.
    @since(version = 0.2.0)
    resolution: func() -> duration;

    /// Create a `pollable` which will resolve once the specified instant
    /// has occurred.
    @since(version = 0.2.0)
    subscribe-instant: func(
        when: instant,
    ) -> pollable;

    /// Create a `pollable` that will resolve after the specified duration has
    /// elapsed from the time this function is invoked.
    @since(version = 0.2.0)
    subscribe-duration: func(
        when: duration,
    ) -> pollable;
}

Version data entries

2 entries across 2 versions & 1 rubygems

Version Path
wasmtime-30.0.2 ./ext/cargo-vendor/wasmtime-wasi-30.0.2/wit/deps/clocks/monotonic-clock.wit
wasmtime-29.0.0 ./ext/cargo-vendor/wasmtime-wasi-29.0.0/wit/deps/clocks/monotonic-clock.wit