70 lines
1.4 KiB
Go
70 lines
1.4 KiB
Go
//go:build llgo
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// +build llgo
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/*
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* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package async
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import (
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"unsafe"
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"github.com/goplus/llgo/c/libuv"
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"github.com/goplus/llgo/c/pthread"
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)
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var execKey pthread.Key
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func init() {
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execKey.Create(nil)
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}
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type Executor struct {
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L *libuv.Loop
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}
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func Exec() *Executor {
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v := execKey.Get()
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if v == nil {
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panic("async.Exec: no executor")
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}
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return (*Executor)(v)
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}
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func setExec(e *Executor) (old *Executor) {
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old = (*Executor)(execKey.Get())
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execKey.Set(unsafe.Pointer(e))
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return
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}
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func (e *Executor) Run() {
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e.L.Run(libuv.RUN_DEFAULT)
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}
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func Run[T any](future Future[T]) T {
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loop := libuv.LoopNew()
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exec := &Executor{loop}
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oldExec := setExec(exec)
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var ret T
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future.Then(func(v T) {
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ret = v
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})
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exec.Run()
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loop.Close()
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setExec(oldExec)
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return ret
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}
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