doesnt work in parallel usage (multiple goroutines)

gorhill / cronexpr

Cron expression parser in Go language (golang)

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Closed rhaps107 closed 6 years ago

rhaps107 commented 7 years ago

In parsing, global package variable layoutRegexp is changing. It is map, so usage in multiple gorountines causes map concurrent write error.

gorhill commented 7 years ago

Is there a written rule out there that all packages must be concurrency-safe?

s7v7nislands commented 7 years ago

so when using this package, I can't using goroutine?

hus787 commented 7 years ago

@gorhill I suppose so else Golang doesn't guarantee anything.