mirror of
https://github.com/rclone/rclone
synced 2024-11-12 10:50:08 +01:00
16d91246c4
Because there is a period of time between checking a directory needs creating and creating it, the leads to errors where directories are attempting to be created twice. Add locking on a per directory basis to fix while doing mkdir.
41 lines
654 B
Go
41 lines
654 B
Go
package sftp
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import (
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"fmt"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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func TestStringLock(t *testing.T) {
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var wg sync.WaitGroup
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counter := [3]int{}
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lock := newStringLock()
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const (
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outer = 10
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inner = 100
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total = outer * inner
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)
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for k := 0; k < outer; k++ {
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for j := range counter {
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wg.Add(1)
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go func(j int) {
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defer wg.Done()
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ID := fmt.Sprintf("%d", j)
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for i := 0; i < inner; i++ {
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lock.Lock(ID)
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n := counter[j]
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time.Sleep(1 * time.Millisecond)
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counter[j] = n + 1
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lock.Unlock(ID)
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}
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}(j)
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}
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}
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wg.Wait()
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assert.Equal(t, [3]int{total, total, total}, counter)
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}
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