[VOL-2235] Mocks and interfaces for rw-core
This update consists of mocks that are used by the rw-core
during unit testing. It also includes interfaces used for unit
tests.
Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/github.com/google/btree/btree_mem.go b/vendor/github.com/google/btree/btree_mem.go
new file mode 100644
index 0000000..cb95b7f
--- /dev/null
+++ b/vendor/github.com/google/btree/btree_mem.go
@@ -0,0 +1,76 @@
+// Copyright 2014 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.
+
+// +build ignore
+
+// This binary compares memory usage between btree and gollrb.
+package main
+
+import (
+ "flag"
+ "fmt"
+ "math/rand"
+ "runtime"
+ "time"
+
+ "github.com/google/btree"
+ "github.com/petar/GoLLRB/llrb"
+)
+
+var (
+ size = flag.Int("size", 1000000, "size of the tree to build")
+ degree = flag.Int("degree", 8, "degree of btree")
+ gollrb = flag.Bool("llrb", false, "use llrb instead of btree")
+)
+
+func main() {
+ flag.Parse()
+ vals := rand.Perm(*size)
+ var t, v interface{}
+ v = vals
+ var stats runtime.MemStats
+ for i := 0; i < 10; i++ {
+ runtime.GC()
+ }
+ fmt.Println("-------- BEFORE ----------")
+ runtime.ReadMemStats(&stats)
+ fmt.Printf("%+v\n", stats)
+ start := time.Now()
+ if *gollrb {
+ tr := llrb.New()
+ for _, v := range vals {
+ tr.ReplaceOrInsert(llrb.Int(v))
+ }
+ t = tr // keep it around
+ } else {
+ tr := btree.New(*degree)
+ for _, v := range vals {
+ tr.ReplaceOrInsert(btree.Int(v))
+ }
+ t = tr // keep it around
+ }
+ fmt.Printf("%v inserts in %v\n", *size, time.Since(start))
+ fmt.Println("-------- AFTER ----------")
+ runtime.ReadMemStats(&stats)
+ fmt.Printf("%+v\n", stats)
+ for i := 0; i < 10; i++ {
+ runtime.GC()
+ }
+ fmt.Println("-------- AFTER GC ----------")
+ runtime.ReadMemStats(&stats)
+ fmt.Printf("%+v\n", stats)
+ if t == v {
+ fmt.Println("to make sure vals and tree aren't GC'd")
+ }
+}