2 files changed, 0 insertions, 149 deletions
diff --git a/vendor/github.com/golang/groupcache/singleflight/singleflight.go b/vendor/github.com/golang/groupcache/singleflight/singleflight.go
deleted file mode 100644
index ff2c2ee4f..000000000
--- a/vendor/github.com/golang/groupcache/singleflight/singleflight.go
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
-Copyright 2012 Google Inc.
-
-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 singleflight provides a duplicate function call suppression
-// mechanism.
-package singleflight
-
-import "sync"
-
-// call is an in-flight or completed Do call
-type call struct {
-	wg  sync.WaitGroup
-	val interface{}
-	err error
-}
-
-// Group represents a class of work and forms a namespace in which
-// units of work can be executed with duplicate suppression.
-type Group struct {
-	mu sync.Mutex       // protects m
-	m  map[string]*call // lazily initialized
-}
-
-// Do executes and returns the results of the given function, making
-// sure that only one execution is in-flight for a given key at a
-// time. If a duplicate comes in, the duplicate caller waits for the
-// original to complete and receives the same results.
-func (g *Group) Do(key string, fn func() (interface{}, error)) (interface{}, error) {
-	g.mu.Lock()
-	if g.m == nil {
-		g.m = make(map[string]*call)
-	}
-	if c, ok := g.m[key]; ok {
-		g.mu.Unlock()
-		c.wg.Wait()
-		return c.val, c.err
-	}
-	c := new(call)
-	c.wg.Add(1)
-	g.m[key] = c
-	g.mu.Unlock()
-
-	c.val, c.err = fn()
-	c.wg.Done()
-
-	g.mu.Lock()
-	delete(g.m, key)
-	g.mu.Unlock()
-
-	return c.val, c.err
-}
diff --git a/vendor/github.com/golang/groupcache/singleflight/singleflight_test.go b/vendor/github.com/golang/groupcache/singleflight/singleflight_test.go
deleted file mode 100644
index 47b4d3dc0..000000000
--- a/vendor/github.com/golang/groupcache/singleflight/singleflight_test.go
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
-Copyright 2012 Google Inc.
-
-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 singleflight
-
-import (
-	"errors"
-	"fmt"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-)
-
-func TestDo(t *testing.T) {
-	var g Group
-	v, err := g.Do("key", func() (interface{}, error) {
-		return "bar", nil
-	})
-	if got, want := fmt.Sprintf("%v (%T)", v, v), "bar (string)"; got != want {
-		t.Errorf("Do = %v; want %v", got, want)
-	}
-	if err != nil {
-		t.Errorf("Do error = %v", err)
-	}
-}
-
-func TestDoErr(t *testing.T) {
-	var g Group
-	someErr := errors.New("Some error")
-	v, err := g.Do("key", func() (interface{}, error) {
-		return nil, someErr
-	})
-	if err != someErr {
-		t.Errorf("Do error = %v; want someErr", err)
-	}
-	if v != nil {
-		t.Errorf("unexpected non-nil value %#v", v)
-	}
-}
-
-func TestDoDupSuppress(t *testing.T) {
-	var g Group
-	c := make(chan string)
-	var calls int32
-	fn := func() (interface{}, error) {
-		atomic.AddInt32(&calls, 1)
-		return <-c, nil
-	}
-
-	const n = 10
-	var wg sync.WaitGroup
-	for i := 0; i < n; i++ {
-		wg.Add(1)
-		go func() {
-			v, err := g.Do("key", fn)
-			if err != nil {
-				t.Errorf("Do error: %v", err)
-			}
-			if v.(string) != "bar" {
-				t.Errorf("got %q; want %q", v, "bar")
-			}
-			wg.Done()
-		}()
-	}
-	time.Sleep(100 * time.Millisecond) // let goroutines above block
-	c <- "bar"
-	wg.Wait()
-	if got := atomic.LoadInt32(&calls); got != 1 {
-		t.Errorf("number of calls = %d; want 1", got)
-	}
-}