Refactor current GAE abstraction library to be free of the SDK*

go/src/infra/gae/libs/wrapper/memory/binutils.go

Index: go/src/infra/gae/libs/wrapper/memory/binutils.go
diff --git a/go/src/infra/gae/libs/wrapper/memory/binutils.go b/go/src/infra/gae/libs/wrapper/memory/binutils.go
deleted file mode 100644
index 4acf30b6f54556356046990995a3840455f7fc57..0000000000000000000000000000000000000000
--- a/go/src/infra/gae/libs/wrapper/memory/binutils.go
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package memory
-
-import (
-	"bytes"
-	"encoding/binary"
-	"fmt"
-	"math"
-	"time"
-
-	"appengine"
-
-	"github.com/luci/luci-go/common/cmpbin"
-)
-
-func writeString(buf *bytes.Buffer, s string) {
-	cmpbin.WriteUint(buf, uint64(len(s)))
-	buf.WriteString(s)
-}
-
-func readString(buf *bytes.Buffer) (string, error) {
-	b, err := readBytes(buf)
-	if err != nil {
-		return "", err
-	}
-	return string(b), nil
-}
-
-func writeBytes(buf *bytes.Buffer, b []byte) {
-	cmpbin.WriteUint(buf, uint64(len(b)))
-	buf.Write(b)
-}
-
-func readBytes(buf *bytes.Buffer) ([]byte, error) {
-	val, _, err := cmpbin.ReadUint(buf)
-	if err != nil {
-		return nil, err
-	}
-	if val > 2*1024*1024 { // 2MB
-		return nil, fmt.Errorf("readBytes: tried to read %d bytes (> 2MB)", val)
-	}
-	retBuf := make([]byte, val)
-	n, _ := buf.Read(retBuf) // err is either io.EOF or nil for bytes.Buffer
-	if uint64(n) != val {
-		return nil, fmt.Errorf("readBytes: expected %d bytes but read %d", val, n)
-	}
-	return retBuf, err
-}
-
-func writeFloat64(buf *bytes.Buffer, v float64) {
-	// byte-ordered floats http://stereopsis.com/radix.html
-	bits := math.Float64bits(v)
-	bits = bits ^ (-(bits >> 63) | (1 << 63))
-	data := make([]byte, 8)
-	binary.BigEndian.PutUint64(data, bits)
-	buf.Write(data)
-}
-
-func readFloat64(buf *bytes.Buffer) (float64, error) {
-	// byte-ordered floats http://stereopsis.com/radix.html
-	data := make([]byte, 8)
-	_, err := buf.Read(data)
-	if err != nil {
-		return 0, err
-	}
-	bits := binary.BigEndian.Uint64(data)
-	return math.Float64frombits(bits ^ (((bits >> 63) - 1) | (1 << 63))), nil
-}
-
-// We truncate this to microseconds and drop the timezone, because that's the
-// way that the appengine SDK does it. Awesome, right? Also: its not documented.
-func writeTime(buf *bytes.Buffer, t time.Time) {
-	cmpbin.WriteUint(buf, uint64(t.Unix())*1e6+uint64(t.Nanosecond()/1e3))
-}
-
-func readTime(buf *bytes.Buffer) (time.Time, error) {
-	v, _, err := cmpbin.ReadUint(buf)
-	if err != nil {
-		return time.Time{}, err
-	}
-	return time.Unix(int64(v/1e6), int64((v%1e6)*1e3)), nil
-}
-
-func writeGeoPoint(buf *bytes.Buffer, gp appengine.GeoPoint) {
-	writeFloat64(buf, gp.Lat)
-	writeFloat64(buf, gp.Lng)
-}
-
-func readGeoPoint(buf *bytes.Buffer) (pt appengine.GeoPoint, err error) {
-	if pt.Lat, err = readFloat64(buf); err != nil {
-		return
-	}
-	pt.Lng, err = readFloat64(buf)
-	return
-}