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implement clock_gettime, clock_getres, clock_settime
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use sys::time::TimeSpec; | ||
use std::mem::MaybeUninit; | ||
use {Result, Errno}; | ||
use libc; | ||
|
||
libc_enum! { | ||
#[cfg_attr(any( | ||
target_env = "uclibc", | ||
target_os = "fuchsia", | ||
target_os = "redox", | ||
target_os = "freebsd", | ||
target_os = "netbsd", | ||
target_os = "openbsd", | ||
target_os = "haiku", | ||
all(not(target_env = "newlib"), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten", | ||
target_os = "solaris", | ||
target_os = "illumos")), | ||
), repr(i32))] | ||
#[cfg_attr(any( | ||
all(target_env = "newlib", target_arch = "arm"), | ||
target_os = "macos", | ||
target_os = "ios", | ||
), repr(u32))] | ||
#[cfg_attr(any( | ||
all(target_env = "newlib", target_arch = "aarch64"), | ||
all(not(any(target_env = "newlib", target_env = "uclibc")), target_os = "hermit"), | ||
target_os = "dragonfly", | ||
), repr(u64))] | ||
pub enum ClockId { | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", | ||
target_env = "newlib")), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"), | ||
) | ||
))] | ||
CLOCK_BOOTTIME, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", | ||
target_env = "newlib")), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"))))] | ||
CLOCK_BOOTTIME_ALARM, | ||
CLOCK_MONOTONIC, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", | ||
target_env = "newlib")), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"))))] | ||
CLOCK_MONOTONIC_COARSE, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_MONOTONIC_FAST, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_MONOTONIC_PRECISE, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", | ||
target_env = "newlib")), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"))))] | ||
CLOCK_MONOTONIC_RAW, | ||
#[cfg(any(target_os = "fuchsia", | ||
target_env = "uclibc", | ||
target_os = "macos", | ||
target_os = "ios", | ||
target_os = "freebsd", | ||
target_os = "dragonfly", | ||
all(not(target_env = "newlib"), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"))))] | ||
CLOCK_PROCESS_CPUTIME_ID, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_PROF, | ||
CLOCK_REALTIME, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", | ||
target_env = "newlib")), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"))))] | ||
CLOCK_REALTIME_ALARM, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", | ||
target_env = "newlib")), | ||
any(target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten"))))] | ||
CLOCK_REALTIME_COARSE, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_REALTIME_FAST, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_REALTIME_PRECISE, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_SECOND, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", target_env = "newlib")), | ||
any(target_os = "emscripten", | ||
all(target_os = "linux", target_env = "musl")))))] | ||
CLOCK_SGI_CYCLE, | ||
#[cfg(any(target_os = "fuchsia", | ||
all(not(any(target_env = "uclibc", target_env = "newlib")), | ||
any(target_os = "emscripten", | ||
all(target_os = "linux", target_env = "musl")))))] | ||
CLOCK_TAI, | ||
#[cfg(any( | ||
target_env = "uclibc", | ||
target_os = "fuchsia", | ||
target_os = "ios", | ||
target_os = "macos", | ||
target_os = "freebsd", | ||
target_os = "dragonfly", | ||
all( | ||
not(target_env = "newlib"), | ||
any( | ||
target_os = "linux", | ||
target_os = "android", | ||
target_os = "emscripten", | ||
), | ||
), | ||
) | ||
)] | ||
CLOCK_THREAD_CPUTIME_ID, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_UPTIME, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_UPTIME_FAST, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_UPTIME_PRECISE, | ||
#[cfg(any(target_os = "freebsd", | ||
target_os = "dragonfly"))] | ||
CLOCK_VIRTUAL, | ||
} | ||
} | ||
|
||
pub fn clock_getres(clk_id: ClockId) -> Result<TimeSpec> { | ||
let mut c_time: MaybeUninit<libc::timespec> = MaybeUninit::uninit(); | ||
let errno = unsafe { libc::clock_getres(clk_id as libc::clockid_t, c_time.as_mut_ptr()) }; | ||
Errno::result(errno)?; | ||
let res = unsafe { c_time.assume_init() }; | ||
Ok(TimeSpec::from(res)) | ||
} | ||
|
||
pub fn clock_gettime(clk_id: ClockId) -> Result<TimeSpec> { | ||
let mut c_time: MaybeUninit<libc::timespec> = MaybeUninit::uninit(); | ||
let errno = unsafe { libc::clock_gettime(clk_id as libc::clockid_t, c_time.as_mut_ptr()) }; | ||
Errno::result(errno)?; | ||
let res = unsafe { c_time.assume_init() }; | ||
Ok(TimeSpec::from(res)) | ||
} | ||
|
||
#[cfg(not( | ||
any( | ||
target_os = "macos", | ||
target_os = "ios", | ||
all( | ||
not(any(target_env = "uclibc", target_env = "newlibc")), | ||
any( | ||
target_os = "redox", | ||
target_os = "hermit", | ||
), | ||
), | ||
) | ||
) | ||
)] | ||
pub fn clock_settime(clk_id: ClockId, timespec: TimeSpec) -> Result<()> { | ||
let res = unsafe { libc::clock_settime(clk_id as libc::clockid_t, timespec.as_ref()) }; | ||
Errno::result(res).map(drop) | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,11 @@ | ||
use nix::time::{clock_getres, clock_gettime, ClockId}; | ||
|
||
#[test] | ||
pub fn test_clock_getres() { | ||
assert!(clock_getres(ClockId::CLOCK_REALTIME).is_ok()); | ||
} | ||
|
||
#[test] | ||
pub fn test_clock_gettime() { | ||
assert!(clock_gettime(ClockId::CLOCK_REALTIME).is_ok()); | ||
} |