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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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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 30, 2024
commit 048ee71c304dadb31c481d24d013e2a52ec57e0d
4 changes: 4 additions & 0 deletions library/std/src/time.rs
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Expand Up @@ -115,13 +115,17 @@ use crate::sys_common::{FromInner, IntoInner};
/// | SOLID | `get_tim` |
/// | WASI | [__wasi_clock_time_get (Monotonic Clock)] |
/// | Windows | [QueryPerformanceCounter] |
/// | Android | [clock_gettime (Boottime Clock)] |
/// | Fuchsia | [zx_clock_get_boot] |
///
/// [currently]: crate::io#platform-specific-behavior
/// [QueryPerformanceCounter]: https://docs.microsoft.com/en-us/windows/win32/api/profileapi/nf-profileapi-queryperformancecounter
/// [`insecure_time` usercall]: https://edp.fortanix.com/docs/api/fortanix_sgx_abi/struct.Usercalls.html#method.insecure_time
/// [timekeeping in SGX]: https://edp.fortanix.com/docs/concepts/rust-std/#codestdtimecode
/// [__wasi_clock_time_get (Monotonic Clock)]: https://github.com/WebAssembly/WASI/blob/main/legacy/preview1/docs.md#clock_time_get
/// [clock_gettime (Monotonic Clock)]: https://linux.die.net/man/3/clock_gettime
/// [clock_gettime (Boottime Clock)]: https://linux.die.net/man/2/clock_gettime
/// [zx_clock_get_boot]: https://fuchsia.dev/reference/syscalls/clock_get_boot
///
/// **Disclaimer:** These system calls might change over time.
///
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