Add timing metrics in client.
This can be used to monitor/troubleshoot server performance.
This commit is contained in:
parent
f70e2ca9a7
commit
95585866c2
41
client.go
41
client.go
|
@ -10,6 +10,42 @@ import (
|
|||
"time"
|
||||
)
|
||||
|
||||
// Client Metrics
|
||||
// ============================================================================
|
||||
|
||||
type Metrics struct {
|
||||
startTime time.Time
|
||||
// ConnectTime returns the duration between client initiation of the TCP/IP
|
||||
// connection to the server and actual TCP/IP session establishment.
|
||||
// This time includes DNS resolution and can be slightly higher if the DNS
|
||||
// resolution result was not in cache.
|
||||
ConnectTime time.Duration
|
||||
// LoginTime returns the between client initiation of the TCP/IP
|
||||
// connection to the server and the return of the login result.
|
||||
// This includes ConnectTime, but also XMPP level protocol negociation
|
||||
// like starttls.
|
||||
LoginTime time.Duration
|
||||
}
|
||||
|
||||
// initMetrics set metrics with default value and define the starting point
|
||||
// for duration calculation (connect time, login time, etc).
|
||||
func initMetrics() *Metrics {
|
||||
return &Metrics{
|
||||
startTime: time.Now(),
|
||||
}
|
||||
}
|
||||
|
||||
func (m *Metrics) setConnectTime() {
|
||||
m.ConnectTime = time.Since(m.startTime)
|
||||
}
|
||||
|
||||
func (m *Metrics) setLoginTime() {
|
||||
m.LoginTime = time.Since(m.startTime)
|
||||
}
|
||||
|
||||
// Client
|
||||
// ============================================================================
|
||||
|
||||
// Client is the main structure used to connect as a client on an XMPP
|
||||
// server.
|
||||
type Client struct {
|
||||
|
@ -19,6 +55,8 @@ type Client struct {
|
|||
Session *Session
|
||||
// TCP level connection / can be replaced by a TLS session after starttls
|
||||
conn net.Conn
|
||||
// store low level metrics
|
||||
Metrics *Metrics
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -80,8 +118,10 @@ func (c *Client) Connect() (*Session, error) {
|
|||
// TODO: Refactor = abstract retry loop in capped exponential back-off function
|
||||
var try = 0
|
||||
var success bool
|
||||
c.Metrics = initMetrics()
|
||||
for try <= c.config.Retry || !success {
|
||||
if tcpconn, err = net.DialTimeout("tcp", c.config.Address, time.Duration(c.config.ConnectTimeout)*time.Second); err == nil {
|
||||
c.Metrics.setConnectTime()
|
||||
success = true
|
||||
}
|
||||
try++
|
||||
|
@ -96,6 +136,7 @@ func (c *Client) Connect() (*Session, error) {
|
|||
return c.Session, err
|
||||
}
|
||||
|
||||
c.Metrics.setLoginTime()
|
||||
// We're connected and can now receive and send messages.
|
||||
//fmt.Fprintf(client.conn, "<presence xml:lang='en'><show>%s</show><status>%s</status></presence>", "chat", "Online")
|
||||
// TODO: Do we always want to send initial presence automatically ?
|
||||
|
|
Loading…
Reference in a new issue