ginuerzh
57 lines
1.0 KiB
Go
57 lines
1.0 KiB
Go
package router
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/go-gost/core/observer"
|
|
)
|
|
|
|
func (h *routerHandler) checkRateLimit(addr net.Addr) bool {
|
|
if h.options.RateLimiter == nil {
|
|
return true
|
|
}
|
|
host, _, _ := net.SplitHostPort(addr.String())
|
|
if limiter := h.options.RateLimiter.Limiter(host); limiter != nil {
|
|
return limiter.Allow(1)
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
func (h *routerHandler) observeStats(ctx context.Context) {
|
|
if h.options.Observer == nil {
|
|
return
|
|
}
|
|
|
|
var events []observer.Event
|
|
|
|
ticker := time.NewTicker(h.md.observerPeriod)
|
|
defer ticker.Stop()
|
|
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
// Try to flush any buffered events from a previous failed attempt.
|
|
if len(events) > 0 {
|
|
if err := h.options.Observer.Observe(ctx, events); err != nil {
|
|
continue
|
|
}
|
|
}
|
|
|
|
// Collect and send fresh events.
|
|
evs := h.stats.Events()
|
|
if len(evs) > 0 {
|
|
if err := h.options.Observer.Observe(ctx, evs); err != nil {
|
|
events = evs
|
|
continue
|
|
}
|
|
}
|
|
events = nil
|
|
|
|
case <-ctx.Done():
|
|
return
|
|
}
|
|
}
|
|
} |