package counters import "database/sql" import "github.com/Azareal/Gosora/common" import "github.com/Azareal/Gosora/query_gen" var RouteViewCounter *DefaultRouteViewCounter // TODO: Make this lockless? type DefaultRouteViewCounter struct { buckets []*RWMutexCounterBucket //[RouteID]count insert *sql.Stmt } func NewDefaultRouteViewCounter() (*DefaultRouteViewCounter, error) { acc := qgen.NewAcc() var routeBuckets = make([]*RWMutexCounterBucket, len(routeMapEnum)) for bucketID, _ := range routeBuckets { routeBuckets[bucketID] = &RWMutexCounterBucket{counter: 0} } counter := &DefaultRouteViewCounter{ buckets: routeBuckets, insert: acc.Insert("viewchunks").Columns("count, createdAt, route").Fields("?,UTC_TIMESTAMP(),?").Prepare(), } common.AddScheduledFifteenMinuteTask(counter.Tick) // There could be a lot of routes, so we don't want to be running this every second //common.AddScheduledSecondTask(counter.Tick) common.AddShutdownTask(counter.Tick) return counter, acc.FirstError() } func (counter *DefaultRouteViewCounter) Tick() error { for routeID, routeBucket := range counter.buckets { var count int routeBucket.RLock() count = routeBucket.counter routeBucket.counter = 0 routeBucket.RUnlock() err := counter.insertChunk(count, routeID) // TODO: Bulk insert for speed? if err != nil { return err } } return nil } func (counter *DefaultRouteViewCounter) insertChunk(count int, route int) error { if count == 0 { return nil } var routeName = reverseRouteMapEnum[route] common.DebugLogf("Inserting a viewchunk with a count of %d for route %s (%d)", count, routeName, route) _, err := counter.insert.Exec(count, routeName) return err } func (counter *DefaultRouteViewCounter) Bump(route int) { // TODO: Test this check common.DebugDetail("counter.buckets[", route, "]: ", counter.buckets[route]) if len(counter.buckets) <= route || route < 0 { return } counter.buckets[route].Lock() counter.buckets[route].counter++ counter.buckets[route].Unlock() }