mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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6dce34ac32
* Initial recsplit * Move licence * Fix bucket count and key count * Check for duplicate kwys * More recsplit implementation * Skeleton of recsplit, fuzz test * Fix lint Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local> Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>
47 lines
995 B
Go
47 lines
995 B
Go
/*
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Copyright 2021 Erigon contributors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 common
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import "errors"
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var ErrStopped = errors.New("stopped")
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var ErrUnwind = errors.New("unwound")
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func Stopped(ch <-chan struct{}) error {
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if ch == nil {
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return nil
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}
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select {
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case <-ch:
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return ErrStopped
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default:
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}
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return nil
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}
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func SafeClose(ch chan struct{}) {
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if ch == nil {
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return
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}
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select {
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case <-ch:
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// Channel was already closed
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default:
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close(ch)
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}
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}
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