gosora/common/counters/agents.go

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package counters
import (
"database/sql"
".."
"../../query_gen/lib"
)
var AgentViewCounter *DefaultAgentViewCounter
type DefaultAgentViewCounter struct {
agentBuckets []*RWMutexCounterBucket //[AgentID]count
insert *sql.Stmt
}
func NewDefaultAgentViewCounter() (*DefaultAgentViewCounter, error) {
acc := qgen.NewAcc()
var agentBuckets = make([]*RWMutexCounterBucket, len(agentMapEnum))
for bucketID, _ := range agentBuckets {
agentBuckets[bucketID] = &RWMutexCounterBucket{counter: 0}
}
counter := &DefaultAgentViewCounter{
agentBuckets: agentBuckets,
insert: acc.Insert("viewchunks_agents").Columns("count, createdAt, browser").Fields("?,UTC_TIMESTAMP(),?").Prepare(),
}
common.AddScheduledFifteenMinuteTask(counter.Tick)
//common.AddScheduledSecondTask(counter.Tick)
common.AddShutdownTask(counter.Tick)
return counter, acc.FirstError()
}
func (counter *DefaultAgentViewCounter) Tick() error {
for agentID, agentBucket := range counter.agentBuckets {
var count int
agentBucket.RLock()
count = agentBucket.counter
agentBucket.counter = 0
agentBucket.RUnlock()
err := counter.insertChunk(count, agentID) // TODO: Bulk insert for speed?
if err != nil {
return err
}
}
return nil
}
func (counter *DefaultAgentViewCounter) insertChunk(count int, agent int) error {
if count == 0 {
return nil
}
var agentName = reverseAgentMapEnum[agent]
common.DebugLogf("Inserting a viewchunk with a count of %d for agent %s (%d)", count, agentName, agent)
_, err := counter.insert.Exec(count, agentName)
return err
}
func (counter *DefaultAgentViewCounter) Bump(agent int) {
// TODO: Test this check
common.DebugDetail("counter.agentBuckets[", agent, "]: ", counter.agentBuckets[agent])
if len(counter.agentBuckets) <= agent || agent < 0 {
return
}
counter.agentBuckets[agent].Lock()
counter.agentBuckets[agent].counter++
counter.agentBuckets[agent].Unlock()
}