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path: root/src/libstd/sys/windows/time.rs
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2017-09-07Properly detect overflow in Instance +/- Duration.kennytm-3/+6
Avoid unchecked cast from `u64` to `i64`. Use `try_into()` for checked cast. (On Unix, cast to `time_t` instead of `i64`.)
2016-02-04std: Expose SystemTime accessors on fs::MetadataAlex Crichton-0/+6
These accessors are used to get at the last modification, last access, and creation time of the underlying file. Currently not all platforms provide the creation time, so that currently returns `Option`.
2015-11-19std: Add Instant and SystemTime to std::timeAlex Crichton-35/+156
This commit is an implementation of [RFC 1288][rfc] which adds two new unstable types to the `std::time` module. The `Instant` type is used to represent measurements of a monotonically increasing clock suitable for measuring time withing a process for operations such as benchmarks or just the elapsed time to do something. An `Instant` favors panicking when bugs are found as the bugs are programmer errors rather than typical errors that can be encountered. [rfc]: https://github.com/rust-lang/rfcs/pull/1288 The `SystemTime` type is used to represent a system timestamp and is not monotonic. Very few guarantees are provided about this measurement of the system clock, but a fixed point in time (`UNIX_EPOCH`) is provided to learn about the relative distance from this point for any particular time stamp. This PR takes the same implementation strategy as the `time` crate on crates.io, namely: | Platform | Instant | SystemTime | |------------|--------------------------|--------------------------| | Windows | QueryPerformanceCounter | GetSystemTimeAsFileTime | | OSX | mach_absolute_time | gettimeofday | | Unix | CLOCK_MONOTONIC | CLOCK_REALTIME | These implementations can perhaps be refined over time, but they currently satisfy the requirements of the `Instant` and `SystemTime` types while also being portable across implementations and revisions of each platform.
2015-11-18Add missing annotations and some testsVadim Petrochenkov-0/+1
2015-11-09std: Migrate to the new libcAlex Crichton-7/+8
* Delete `sys::unix::{c, sync}` as these are now all folded into libc itself * Update all references to use `libc` as a result. * Update all references to the new flat namespace. * Moves all windows bindings into sys::c
2015-05-27Use `const fn` to abstract away the contents of UnsafeCell & friends.Eduard Burtescu-2/+2
2015-05-13std: Redesign Duration, implementing RFC 1040Alex Crichton-13/+7
This commit is an implementation of [RFC 1040][rfc] which is a redesign of the currently-unstable `Duration` type. The API of the type has been scaled back to be more conservative and it also no longer supports negative durations. [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1040-duration-reform.md The inner `duration` module of the `time` module has now been hidden (as `Duration` is reexported) and the feature name for this type has changed from `std_misc` to `duration`. All APIs accepting durations have also been audited to take a more flavorful feature name instead of `std_misc`. Closes #24874
2015-02-25Fix overflow in precise_time_ns() on Windows,Vadim Chugunov-2/+25
which starts happening after ~2 hours of machine uptime.
2015-01-16Rewrite Condvar::wait_timeout and make it publicSteven Fackler-0/+50
**The implementation is a direct adaptation of libcxx's condition_variable implementation.** pthread_cond_timedwait uses the non-monotonic system clock. It's possible to change the clock to a monotonic via pthread_cond_attr, but this is incompatible with static initialization. To deal with this, we calculate the timeout using the system clock, and maintain a separate record of the start and end times with a monotonic clock to be used for calculation of the return value.