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Diffstat (limited to 'vendor/github.com/hpcloud/tail/ratelimiter/leakybucket.go')
-rw-r--r--vendor/github.com/hpcloud/tail/ratelimiter/leakybucket.go97
1 files changed, 0 insertions, 97 deletions
diff --git a/vendor/github.com/hpcloud/tail/ratelimiter/leakybucket.go b/vendor/github.com/hpcloud/tail/ratelimiter/leakybucket.go
deleted file mode 100644
index 358b69e7f..000000000
--- a/vendor/github.com/hpcloud/tail/ratelimiter/leakybucket.go
+++ /dev/null
@@ -1,97 +0,0 @@
-// Package ratelimiter implements the Leaky Bucket ratelimiting algorithm with memcached and in-memory backends.
-package ratelimiter
-
-import (
- "time"
-)
-
-type LeakyBucket struct {
- Size uint16
- Fill float64
- LeakInterval time.Duration // time.Duration for 1 unit of size to leak
- Lastupdate time.Time
- Now func() time.Time
-}
-
-func NewLeakyBucket(size uint16, leakInterval time.Duration) *LeakyBucket {
- bucket := LeakyBucket{
- Size: size,
- Fill: 0,
- LeakInterval: leakInterval,
- Now: time.Now,
- Lastupdate: time.Now(),
- }
-
- return &bucket
-}
-
-func (b *LeakyBucket) updateFill() {
- now := b.Now()
- if b.Fill > 0 {
- elapsed := now.Sub(b.Lastupdate)
-
- b.Fill -= float64(elapsed) / float64(b.LeakInterval)
- if b.Fill < 0 {
- b.Fill = 0
- }
- }
- b.Lastupdate = now
-}
-
-func (b *LeakyBucket) Pour(amount uint16) bool {
- b.updateFill()
-
- var newfill float64 = b.Fill + float64(amount)
-
- if newfill > float64(b.Size) {
- return false
- }
-
- b.Fill = newfill
-
- return true
-}
-
-// The time at which this bucket will be completely drained
-func (b *LeakyBucket) DrainedAt() time.Time {
- return b.Lastupdate.Add(time.Duration(b.Fill * float64(b.LeakInterval)))
-}
-
-// The duration until this bucket is completely drained
-func (b *LeakyBucket) TimeToDrain() time.Duration {
- return b.DrainedAt().Sub(b.Now())
-}
-
-func (b *LeakyBucket) TimeSinceLastUpdate() time.Duration {
- return b.Now().Sub(b.Lastupdate)
-}
-
-type LeakyBucketSer struct {
- Size uint16
- Fill float64
- LeakInterval time.Duration // time.Duration for 1 unit of size to leak
- Lastupdate time.Time
-}
-
-func (b *LeakyBucket) Serialise() *LeakyBucketSer {
- bucket := LeakyBucketSer{
- Size: b.Size,
- Fill: b.Fill,
- LeakInterval: b.LeakInterval,
- Lastupdate: b.Lastupdate,
- }
-
- return &bucket
-}
-
-func (b *LeakyBucketSer) DeSerialise() *LeakyBucket {
- bucket := LeakyBucket{
- Size: b.Size,
- Fill: b.Fill,
- LeakInterval: b.LeakInterval,
- Lastupdate: b.Lastupdate,
- Now: time.Now,
- }
-
- return &bucket
-}