collector: use RWMutex

collector.go

@@ -25,7 +25,7 @@ type Table struct {
 // Collector - query collector
 type Collector struct {
 	Tables        map[string]*Table
-	mu            sync.Mutex
+	mu            sync.RWMutex
 	Count         int
 	FlushInterval int
 	Sender        Sender
@@ -142,22 +142,31 @@ func (c *Collector) AddTable(name string) {
 	c.addTable(name)
 }
 
-func (c *Collector) addTable(name string) {
+func (c *Collector) addTable(name string) *Table {
 	t := NewTable(name, c.Sender, c.Count, c.FlushInterval)
 	c.Tables[name] = t
 	t.RunTimer()
+	return t
 }
 
 // Push - adding query to collector with query params (with query) and rows
 func (c *Collector) Push(params string, content string) {
+	c.mu.RLock()
+	table, ok := c.Tables[params]
+	if ok {
+		table.Add(content)
+		c.mu.RUnlock()
+		return
+	}
+	c.mu.RUnlock()
 	c.mu.Lock()
-	defer c.mu.Unlock()
-	_, ok := c.Tables[params]
+	table, ok = c.Tables[params]
 	if !ok {
 		//log.Printf("'%+v'\n", params)
-		c.addTable(params)
+		table = c.addTable(params)
 	}
-	c.Tables[params].Add(content)
+	table.Add(content)
+	c.mu.Unlock()
 }
 
 // ParseQuery - parsing inbound query to unified format (params/query), content (query data)