2fdc7f1a8e
Some structs and unions are large enough that making them `Copy` isn't ideal. wasi-common only needed `Copy` in a few places that were easy to fix. `SubscriptionClock` is 32 bytes, so it's not a bad a idea to pass it by reference anyway.
19 lines
600 B
Rust
19 lines
600 B
Rust
use crate::sys;
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use crate::wasi::types::{Subclockflags, SubscriptionClock};
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use crate::wasi::{Errno, Result};
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use std::time::SystemTime;
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pub(crate) use sys::clock::*;
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pub(crate) fn to_relative_ns_delay(clock: &SubscriptionClock) -> Result<u128> {
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if clock.flags != Subclockflags::SUBSCRIPTION_CLOCK_ABSTIME {
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return Ok(u128::from(clock.timeout));
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}
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let now: u128 = SystemTime::now()
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.duration_since(SystemTime::UNIX_EPOCH)
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.map_err(|_| Errno::Notcapable)?
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.as_nanos();
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let deadline = u128::from(clock.timeout);
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Ok(deadline.saturating_sub(now))
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}
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