From 8c12c6939aab9106db14ec2d11d983bc5b29fb2c Mon Sep 17 00:00:00 2001
From: Niall Sheridan <nsheridan@gmail.com>
Date: Sun, 7 Jul 2019 21:33:44 +0100
Subject: Switch to modules

---
 vendor/go.opencensus.io/trace/spanbucket.go | 130 ----------------------------
 1 file changed, 130 deletions(-)
 delete mode 100644 vendor/go.opencensus.io/trace/spanbucket.go

(limited to 'vendor/go.opencensus.io/trace/spanbucket.go')

diff --git a/vendor/go.opencensus.io/trace/spanbucket.go b/vendor/go.opencensus.io/trace/spanbucket.go
deleted file mode 100644
index fbabad3..0000000
--- a/vendor/go.opencensus.io/trace/spanbucket.go
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright 2017, OpenCensus Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package trace
-
-import (
-	"time"
-)
-
-// samplePeriod is the minimum time between accepting spans in a single bucket.
-const samplePeriod = time.Second
-
-// defaultLatencies contains the default latency bucket bounds.
-// TODO: consider defaults, make configurable
-var defaultLatencies = [...]time.Duration{
-	10 * time.Microsecond,
-	100 * time.Microsecond,
-	time.Millisecond,
-	10 * time.Millisecond,
-	100 * time.Millisecond,
-	time.Second,
-	10 * time.Second,
-	time.Minute,
-}
-
-// bucket is a container for a set of spans for a particular error code or latency range.
-type bucket struct {
-	nextTime  time.Time   // next time we can accept a span
-	buffer    []*SpanData // circular buffer of spans
-	nextIndex int         // location next SpanData should be placed in buffer
-	overflow  bool        // whether the circular buffer has wrapped around
-}
-
-func makeBucket(bufferSize int) bucket {
-	return bucket{
-		buffer: make([]*SpanData, bufferSize),
-	}
-}
-
-// add adds a span to the bucket, if nextTime has been reached.
-func (b *bucket) add(s *SpanData) {
-	if s.EndTime.Before(b.nextTime) {
-		return
-	}
-	if len(b.buffer) == 0 {
-		return
-	}
-	b.nextTime = s.EndTime.Add(samplePeriod)
-	b.buffer[b.nextIndex] = s
-	b.nextIndex++
-	if b.nextIndex == len(b.buffer) {
-		b.nextIndex = 0
-		b.overflow = true
-	}
-}
-
-// size returns the number of spans in the bucket.
-func (b *bucket) size() int {
-	if b.overflow {
-		return len(b.buffer)
-	}
-	return b.nextIndex
-}
-
-// span returns the ith span in the bucket.
-func (b *bucket) span(i int) *SpanData {
-	if !b.overflow {
-		return b.buffer[i]
-	}
-	if i < len(b.buffer)-b.nextIndex {
-		return b.buffer[b.nextIndex+i]
-	}
-	return b.buffer[b.nextIndex+i-len(b.buffer)]
-}
-
-// resize changes the size of the bucket to n, keeping up to n existing spans.
-func (b *bucket) resize(n int) {
-	cur := b.size()
-	newBuffer := make([]*SpanData, n)
-	if cur < n {
-		for i := 0; i < cur; i++ {
-			newBuffer[i] = b.span(i)
-		}
-		b.buffer = newBuffer
-		b.nextIndex = cur
-		b.overflow = false
-		return
-	}
-	for i := 0; i < n; i++ {
-		newBuffer[i] = b.span(i + cur - n)
-	}
-	b.buffer = newBuffer
-	b.nextIndex = 0
-	b.overflow = true
-}
-
-// latencyBucket returns the appropriate bucket number for a given latency.
-func latencyBucket(latency time.Duration) int {
-	i := 0
-	for i < len(defaultLatencies) && latency >= defaultLatencies[i] {
-		i++
-	}
-	return i
-}
-
-// latencyBucketBounds returns the lower and upper bounds for a latency bucket
-// number.
-//
-// The lower bound is inclusive, the upper bound is exclusive (except for the
-// last bucket.)
-func latencyBucketBounds(index int) (lower time.Duration, upper time.Duration) {
-	if index == 0 {
-		return 0, defaultLatencies[index]
-	}
-	if index == len(defaultLatencies) {
-		return defaultLatencies[index-1], 1<<63 - 1
-	}
-	return defaultLatencies[index-1], defaultLatencies[index]
-}
-- 
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