8fe65da935
This commit removes the `wasm_syscall` feature from the wasm32-unknown-unknown build of the standard library. This feature was originally intended to allow an opt-in way to interact with the operating system in a posix-like way but it was never stabilized. Nowadays with the advent of the `wasm32-wasi` target that should entirely replace the intentions of the `wasm_syscall` feature.
55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
use crate::time::Duration;
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#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
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pub struct Instant(Duration);
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#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
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pub struct SystemTime(Duration);
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pub const UNIX_EPOCH: SystemTime = SystemTime(Duration::from_secs(0));
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impl Instant {
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pub fn now() -> Instant {
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panic!("time not implemented on wasm32-unknown-unknown")
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}
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pub const fn zero() -> Instant {
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Instant(Duration::from_secs(0))
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}
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pub fn actually_monotonic() -> bool {
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false
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}
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pub fn checked_sub_instant(&self, other: &Instant) -> Option<Duration> {
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self.0.checked_sub(other.0)
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}
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pub fn checked_add_duration(&self, other: &Duration) -> Option<Instant> {
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Some(Instant(self.0.checked_add(*other)?))
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}
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pub fn checked_sub_duration(&self, other: &Duration) -> Option<Instant> {
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Some(Instant(self.0.checked_sub(*other)?))
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}
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}
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impl SystemTime {
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pub fn now() -> SystemTime {
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panic!("time not implemented on wasm32-unknown-unknown")
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}
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pub fn sub_time(&self, other: &SystemTime)
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-> Result<Duration, Duration> {
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self.0.checked_sub(other.0).ok_or_else(|| other.0 - self.0)
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}
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pub fn checked_add_duration(&self, other: &Duration) -> Option<SystemTime> {
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Some(SystemTime(self.0.checked_add(*other)?))
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}
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pub fn checked_sub_duration(&self, other: &Duration) -> Option<SystemTime> {
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Some(SystemTime(self.0.checked_sub(*other)?))
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}
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}
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