Dequeue is failing while deleting the segment "The process cannot access the file because it is being used by another process"

[ysaik]

Hi, I was trying a simple program to enqueue and dequeue 10 elements. with segment size 5 its failing with below error main.go and go.mod files attached PS C:\Sai_laptop_backup\workspace\golang\dque_test> .\main.exe Enqueued SAI100 1 Enqueued SAI101 2 Enqueued SAI102 3 Enqueued SAI103 4 Enqueued SAI104 5 Enqueued SAI105 6 Enqueued SAI106 7 Enqueued SAI107 8 Enqueued SAI108 9 Enqueued SAI109 10 Dequeued: &{SAI100 1} Dequeued: &{SAI101 2} Dequeued: &{SAI102 3} Dequeued: &{SAI103 4} 2021/07/20 11:22:49 Error dequeuing item:error deleting queue segment C:/Sai_laptop_backup/workspace/golang/dque_test/item-queue/0000000000001.dque. Queue is in an inconsistent state: error deleting file: C:/Sai_laptop_backup/workspace/golang/dque_test/item-queue/0000000000001.dque: remove C:/Sai_laptop_backup/workspace/golang/dque_test/item-queue/0000000000001.dque: The process cannot access the file because it is being used by another process.

[ysaik]

dque_test.zip

main.go and go.mod files are attached

It is failing to remove the first segment from the queue

[joncrlsn]

Hi, Thank you for reporting that. I don't have access to a Windows machine. If you figure it out and find a fix, please create a Pull Request. Or at least let me know what the fix is.

[malcolm-white-dti]

This is an inherent bug with Golang, based on how files are created in Windows. There is a long thread on fixing and changing it (and the Linux people seemed to have won). One of the posts in there has a work around for it.

https://github.com/alexbrainman/goissue34681

I've implemented in a fork I am using, but I also had to make changes in the Flock library because it was using the same call/function.