blob: 21a0bc10552b0570bd920b9229ec131766267578 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
//go:build wasm && !wasip1
package runtime
type timeUnit float64 // time in milliseconds, just like Date.now() in JavaScript
var handleEvent func()
//go:linkname setEventHandler syscall/js.setEventHandler
func setEventHandler(fn func()) {
handleEvent = fn
}
func ticksToNanoseconds(ticks timeUnit) int64 {
// The JavaScript API works in float64 milliseconds, so convert to
// nanoseconds first before converting to a timeUnit (which is a float64),
// to avoid precision loss.
return int64(ticks * 1e6)
}
func nanosecondsToTicks(ns int64) timeUnit {
// The JavaScript API works in float64 milliseconds, so convert to timeUnit
// (which is a float64) first before dividing, to avoid precision loss.
return timeUnit(ns) / 1e6
}
// This function is called by the scheduler.
// Schedule a call to runtime.scheduler, do not actually sleep.
//
//go:wasmimport gojs runtime.sleepTicks
func sleepTicks(d timeUnit)
//go:wasmimport gojs runtime.ticks
func ticks() timeUnit
|