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Use CLOCK_BOOTTIME for Instant in Fuchsia/Android #132331

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Use CLOCK_BOOTTIME for Instant in Fuchsia/Android #132331

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88eafa4
Use CLOCK_BOOTTIME for Instant in Fuchsia/Android
Oct 29, 2024
048ee71
Use CLOCK_BOOTTIME for Instant in Fuchsia/Android
Oct 29, 2024
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Use CLOCK_BOOTTIME for Instant in Fuchsia/Android 
Fuchsia and Android both want Instants to progress during periods of
suspension, and thus must use CLOCK_BOOTTIME as the backing reference
clock.
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Anirudh Mathukumilli committed Oct 29, 2024
commit 88eafa478550ae55f3f471bed723deac96d5a594
6 changes: 5 additions & 1 deletion library/std/src/sys/pal/unix/time.rs
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Expand Up @@ -271,7 +271,11 @@ impl Instant {
// we preserve this value domain out of an abundance of caution.
#[cfg(target_vendor = "apple")]
const clock_id: libc::clockid_t = libc::CLOCK_UPTIME_RAW;
#[cfg(not(target_vendor = "apple"))]
// Instant is intended to progress forward during periods of suspension
// in both Android and Fuchsia, and therefore uses CLOCK_BOOTTIME.
#[cfg(any(target_os = "android", target_os = "fuchsia"))]
const clock_id: libc::clockid_t = libc::CLOCK_BOOTTIME;
#[cfg(not(any(target_vendor = "apple", target_os = "fuchsia", target_os = "android")))]
const clock_id: libc::clockid_t = libc::CLOCK_MONOTONIC;
Instant { t: Timespec::now(clock_id) }
}
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