mirror of
https://gitee.com/rainbond/Rainbond.git
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65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
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// RAINBOND, Application Management Platform
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version. For any non-GPL usage of Rainbond,
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// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
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// must be obtained first.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package util
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import (
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"context"
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"time"
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)
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//SendNoBlocking 无阻塞发送
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func SendNoBlocking(m []byte, ch chan []byte) {
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select {
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case ch <- m:
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default:
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}
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}
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//IntermittentExec 间歇性执行
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func IntermittentExec(ctx context.Context, f func(), t time.Duration) {
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tick := time.NewTicker(t)
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defer tick.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-tick.C:
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f()
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}
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}
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}
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//Exec 上下文执行
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func Exec(ctx context.Context, f func() error, wait time.Duration) error {
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timer := time.NewTimer(wait)
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defer timer.Stop()
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for {
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re := f()
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if re != nil {
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return re
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}
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timer.Reset(wait)
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select {
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case <-ctx.Done():
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return nil
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case <-timer.C:
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}
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}
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}
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