85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
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package builtins
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import (
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"sync"
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"time"
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"go.elara.ws/logger/log"
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"go.starlark.net/starlark"
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"go.starlark.net/starlarkstruct"
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)
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var (
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tickerMtx = &sync.Mutex{}
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tickerCount = 0
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tickers = map[int]*time.Ticker{}
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)
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func runEvery(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
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var every string
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var fn *starlark.Function
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err := starlark.UnpackArgs("run_every", args, kwargs, "every", &every, "function", &fn)
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if err != nil {
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return nil, err
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}
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d, err := time.ParseDuration(every)
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if err != nil {
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return nil, err
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}
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tickerMtx.Lock()
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t := time.NewTicker(d)
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handle := tickerCount
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tickers[handle] = t
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tickerCount++
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tickerMtx.Unlock()
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log.Debug("Created new ticker").Int("handle", handle).Str("duration", every).Stringer("pos", thread.CallFrame(1).Pos).Send()
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go func() {
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for range t.C {
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log.Debug("Calling scheduled function").Str("name", fn.Name()).Stringer("pos", fn.Position()).Send()
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_, err := starlark.Call(thread, fn, nil, nil)
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if err != nil {
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log.Warn("Error while executing scheduled function").Str("name", fn.Name()).Stringer("pos", fn.Position()).Err(err).Send()
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}
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}
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}()
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return newTickerHandle(handle), nil
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}
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func sleep(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
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var duration string
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err := starlark.UnpackArgs("sleep", args, kwargs, "duration", &duration)
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if err != nil {
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return nil, err
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}
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d, err := time.ParseDuration(duration)
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if err != nil {
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return nil, err
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}
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log.Debug("Sleeping").Str("duration", duration).Stringer("pos", thread.CallFrame(1).Pos).Send()
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time.Sleep(d)
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return starlark.None, nil
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}
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func stopTicker(handle int) *starlark.Builtin {
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return starlark.NewBuiltin("stop", func(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
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tickerMtx.Lock()
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tickers[handle].Stop()
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delete(tickers, handle)
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tickerMtx.Unlock()
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log.Debug("Stopped ticker").Int("handle", handle).Stringer("pos", thread.CallFrame(1).Pos).Send()
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return starlark.None, nil
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})
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}
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func newTickerHandle(handle int) starlark.Value {
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return starlarkstruct.FromStringDict(starlarkstruct.Default, starlark.StringDict{
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"stop": stopTicker(handle),
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})
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}
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