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move linux impl to unix (it works on osx too!)

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This commit is contained in:
Mark McCaskey 2019-03-29 12:39:48 -07:00
parent 1f8b90b57e
commit 28d9d1fe87
3 changed files with 60 additions and 77 deletions
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61
lib/wasi/src/syscalls/unix/linux.rs
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@ -1,62 +1 @@
use crate::syscalls::types::*;
use libc::{
clock_getres, clock_gettime, timespec, CLOCK_MONOTONIC, CLOCK_PROCESS_CPUTIME_ID,
CLOCK_REALTIME, CLOCK_THREAD_CPUTIME_ID,
};
use std::cell::Cell;
use std::mem;
pub fn platform_clock_res_get(
clock_id: __wasi_clockid_t,
resolution: &Cell<__wasi_timestamp_t>,
) -> __wasi_errno_t {
let linux_clock_id = match clock_id {
__WASI_CLOCK_MONOTONIC => CLOCK_MONOTONIC,
__WASI_CLOCK_PROCESS_CPUTIME_ID => CLOCK_PROCESS_CPUTIME_ID,
__WASI_CLOCK_REALTIME => CLOCK_REALTIME,
__WASI_CLOCK_THREAD_CPUTIME_ID => CLOCK_THREAD_CPUTIME_ID,
_ => return __WASI_EINVAL,
};
let (output, timespec_out) = unsafe {
let mut timespec_out: timespec = mem::uninitialized();
(
clock_getres(linux_clock_id, &mut timespec_out),
timespec_out,
)
};
resolution.set(timespec_out.tv_nsec as __wasi_timestamp_t);
// TODO: map output of clock_getres to __wasi_errno_t
__WASI_ESUCCESS
}
pub fn platform_clock_time_get(
clock_id: __wasi_clockid_t,
precision: __wasi_timestamp_t,
time: &Cell<__wasi_timestamp_t>,
) -> __wasi_errno_t {
let linux_clock_id = match clock_id {
__WASI_CLOCK_MONOTONIC => CLOCK_MONOTONIC,
__WASI_CLOCK_PROCESS_CPUTIME_ID => CLOCK_PROCESS_CPUTIME_ID,
__WASI_CLOCK_REALTIME => CLOCK_REALTIME,
__WASI_CLOCK_THREAD_CPUTIME_ID => CLOCK_THREAD_CPUTIME_ID,
_ => return __WASI_EINVAL,
};
let (output, timespec_out) = unsafe {
let mut timespec_out: timespec = mem::uninitialized();
(
clock_gettime(linux_clock_id, &mut timespec_out),
timespec_out,
)
};
// TODO: adjust output by precision...
time.set(timespec_out.tv_nsec as __wasi_timestamp_t);
// TODO: map output of clock_gettime to __wasi_errno_t
__WASI_ESUCCESS
}

16
lib/wasi/src/syscalls/unix/macos.rs
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@ -1,17 +1 @@
use crate::syscalls::types::*;
use std::cell::Cell;
pub fn platform_clock_res_get(
clock_id: __wasi_clockid_t,
resolution: &Cell<__wasi_timestamp_t>,
) -> __wasi_errno_t {
__WASI_EINVAL
}
pub fn platform_clock_time_get(
clock_id: __wasi_clockid_t,
precision: __wasi_timestamp_t,
time: &Cell<__wasi_timestamp_t>,
) -> __wasi_errno_t {
unimplemented!()
}

60
lib/wasi/src/syscalls/unix/mod.rs
View File

@ -9,3 +9,63 @@ pub use linux::*;
#[cfg(target_os = "macos")]
pub use macos::*;
use crate::syscalls::types::*;
use libc::{
clock_getres, clock_gettime, timespec, CLOCK_MONOTONIC, CLOCK_PROCESS_CPUTIME_ID,
CLOCK_REALTIME, CLOCK_THREAD_CPUTIME_ID,
};
use std::cell::Cell;
use std::mem;
pub fn platform_clock_res_get(
clock_id: __wasi_clockid_t,
resolution: &Cell<__wasi_timestamp_t>,
) -> __wasi_errno_t {
let unix_clock_id = match clock_id {
__WASI_CLOCK_MONOTONIC => CLOCK_MONOTONIC,
__WASI_CLOCK_PROCESS_CPUTIME_ID => CLOCK_PROCESS_CPUTIME_ID,
__WASI_CLOCK_REALTIME => CLOCK_REALTIME,
__WASI_CLOCK_THREAD_CPUTIME_ID => CLOCK_THREAD_CPUTIME_ID,
_ => return __WASI_EINVAL,
};
let (output, timespec_out) = unsafe {
let mut timespec_out: timespec = mem::uninitialized();
(clock_getres(unix_clock_id, &mut timespec_out), timespec_out)
};
resolution.set(timespec_out.tv_nsec as __wasi_timestamp_t);
// TODO: map output of clock_getres to __wasi_errno_t
__WASI_ESUCCESS
}
pub fn platform_clock_time_get(
clock_id: __wasi_clockid_t,
precision: __wasi_timestamp_t,
time: &Cell<__wasi_timestamp_t>,
) -> __wasi_errno_t {
let unix_clock_id = match clock_id {
__WASI_CLOCK_MONOTONIC => CLOCK_MONOTONIC,
__WASI_CLOCK_PROCESS_CPUTIME_ID => CLOCK_PROCESS_CPUTIME_ID,
__WASI_CLOCK_REALTIME => CLOCK_REALTIME,
__WASI_CLOCK_THREAD_CPUTIME_ID => CLOCK_THREAD_CPUTIME_ID,
_ => return __WASI_EINVAL,
};
let (output, timespec_out) = unsafe {
let mut timespec_out: timespec = mem::uninitialized();
(
clock_gettime(unix_clock_id, &mut timespec_out),
timespec_out,
)
};
// TODO: adjust output by precision...
time.set(timespec_out.tv_nsec as __wasi_timestamp_t);
// TODO: map output of clock_gettime to __wasi_errno_t
__WASI_ESUCCESS
}