Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/common/ratelimiter/config.go

@@ -0,0 +1,23 @@
+package ratelimiter
+
+import (
+	"errors"
+	"time"
+
+	"github.com/influxdata/telegraf/config"
+)
+
+type RateLimitConfig struct {
+	Limit  config.Size     `toml:"rate_limit"`
+	Period config.Duration `toml:"rate_limit_period"`
+}
+
+func (cfg *RateLimitConfig) CreateRateLimiter() (*RateLimiter, error) {
+	if cfg.Limit > 0 && cfg.Period <= 0 {
+		return nil, errors.New("invalid period for rate-limit")
+	}
+	return &RateLimiter{
+		limit:  int64(cfg.Limit),
+		period: time.Duration(cfg.Period),
+	}, nil
+}