mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 23:34:47 -05:00
7c2e7c6608
Provides a concrete state type that can be dynamically added. This is necessary for op crates. * renames BasicState to OpState * async ops take `Rc<RefCell<OpState>>` * sync ops take `&mut OpState` * removes `OpRegistry`, `OpRouter` traits * `get_error_class_fn` moved to OpState * ResourceTable moved to OpState
81 lines
2.2 KiB
Rust
81 lines
2.2 KiB
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
|
|
|
|
use deno_core::BufVec;
|
|
use deno_core::ErrBox;
|
|
use deno_core::OpState;
|
|
use deno_core::ZeroCopyBuf;
|
|
use futures::future::FutureExt;
|
|
use serde_derive::Deserialize;
|
|
use serde_json::Value;
|
|
use std::cell::RefCell;
|
|
use std::rc::Rc;
|
|
use std::time::Duration;
|
|
use std::time::Instant;
|
|
|
|
pub fn init(rt: &mut deno_core::JsRuntime) {
|
|
super::reg_json_sync(rt, "op_global_timer_stop", op_global_timer_stop);
|
|
super::reg_json_async(rt, "op_global_timer", op_global_timer);
|
|
super::reg_json_sync(rt, "op_now", op_now);
|
|
}
|
|
|
|
fn op_global_timer_stop(
|
|
state: &mut OpState,
|
|
_args: Value,
|
|
_zero_copy: &mut [ZeroCopyBuf],
|
|
) -> Result<Value, ErrBox> {
|
|
let cli_state = super::cli_state(state);
|
|
cli_state.global_timer.borrow_mut().cancel();
|
|
Ok(json!({}))
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct GlobalTimerArgs {
|
|
timeout: u64,
|
|
}
|
|
|
|
async fn op_global_timer(
|
|
state: Rc<RefCell<OpState>>,
|
|
args: Value,
|
|
_zero_copy: BufVec,
|
|
) -> Result<Value, ErrBox> {
|
|
let args: GlobalTimerArgs = serde_json::from_value(args)?;
|
|
let val = args.timeout;
|
|
|
|
let deadline = Instant::now() + Duration::from_millis(val);
|
|
let timer_fut = {
|
|
super::cli_state2(&state)
|
|
.global_timer
|
|
.borrow_mut()
|
|
.new_timeout(deadline)
|
|
.boxed_local()
|
|
};
|
|
let _ = timer_fut.await;
|
|
Ok(json!({}))
|
|
}
|
|
|
|
// Returns a milliseconds and nanoseconds subsec
|
|
// since the start time of the deno runtime.
|
|
// If the High precision flag is not set, the
|
|
// nanoseconds are rounded on 2ms.
|
|
fn op_now(
|
|
state: &mut OpState,
|
|
_args: Value,
|
|
_zero_copy: &mut [ZeroCopyBuf],
|
|
) -> Result<Value, ErrBox> {
|
|
let cli_state = super::cli_state(state);
|
|
let seconds = cli_state.start_time.elapsed().as_secs();
|
|
let mut subsec_nanos = cli_state.start_time.elapsed().subsec_nanos();
|
|
let reduced_time_precision = 2_000_000; // 2ms in nanoseconds
|
|
|
|
// If the permission is not enabled
|
|
// Round the nano result on 2 milliseconds
|
|
// see: https://developer.mozilla.org/en-US/docs/Web/API/DOMHighResTimeStamp#Reduced_time_precision
|
|
if cli_state.check_hrtime().is_err() {
|
|
subsec_nanos -= subsec_nanos % reduced_time_precision;
|
|
}
|
|
|
|
Ok(json!({
|
|
"seconds": seconds,
|
|
"subsecNanos": subsec_nanos,
|
|
}))
|
|
}
|