package lib import ( "sync" ) var counter int var mu sync.Mutex // getCounter will return the value of a global per-process incrementing counter func getCounter() int { return count() } // resetCounter will reset incrementing counter's value func resetCounter() { counter = 0 } // count will increment the atomic counter and return its value func count() int { mu.Lock() counter++ mu.Unlock() return counter } // StringInSlice will return whether string exists in given slice or not func StringInSlice(a string, list []string) bool { for _, b := range list { if b == a { return true } } return false }