62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
// Copyright 2023 LiveKit, Inc.
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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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package utils
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import (
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"context"
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"errors"
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"math/rand/v2"
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"time"
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)
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type terminalError struct {
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error
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}
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func (e terminalError) Unwrap() error {
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return e.error
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}
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func TerminalError(err error) error {
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return terminalError{err}
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}
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func ErrIsTerminal(err error) bool {
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var terr terminalError
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return errors.As(err, &terr)
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}
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func Retry(ctx context.Context, minTime, maxTime, timeout time.Duration, f func(ctx context.Context) error) error {
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retryTime := minTime
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ctx, cancel := context.WithTimeout(ctx, timeout)
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defer cancel()
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for {
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err := f(ctx)
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if err == nil || ErrIsTerminal(err) {
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return err
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}
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select {
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case <-ctx.Done():
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return err
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case <-time.After(retryTime):
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}
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retryTime = min(maxTime, time.Duration((rand.Float64()+1)*float64(retryTime)))
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}
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}
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