Initial QSfera import

Server/vendor/github.com/dgraph-io/ristretto/z/calloc_nojemalloc.go

@@ -0,0 +1,38 @@
+// Copyright 2020 The LevelDB-Go and Pebble Authors. All rights reserved. Use
+// of this source code is governed by a BSD-style license that can be found in
+// the LICENSE file.
+
+//go:build !jemalloc || !cgo
+// +build !jemalloc !cgo
+
+package z
+
+import (
+	"fmt"
+)
+
+// Provides versions of Calloc, CallocNoRef, etc when jemalloc is not available
+// (eg: build without jemalloc tag).
+
+// Calloc allocates a slice of size n.
+func Calloc(n int, tag string) []byte {
+	return make([]byte, n)
+}
+
+// CallocNoRef will not give you memory back without jemalloc.
+func CallocNoRef(n int, tag string) []byte {
+	// We do the add here just to stay compatible with a corresponding Free call.
+	return nil
+}
+
+// Free does not do anything in this mode.
+func Free(b []byte) {}
+
+func Leaks() string { return "Leaks: Using Go memory" }
+func StatsPrint() {
+	fmt.Println("Using Go memory")
+}
+
+// ReadMemStats doesn't do anything since all the memory is being managed
+// by the Go runtime.
+func ReadMemStats(_ *MemStats) {}