1 files changed, 0 insertions, 288 deletions
diff --git a/src/pkg/expvar/expvar.go b/src/pkg/expvar/expvar.go
deleted file mode 100644
index 7123d4b0f..000000000
--- a/src/pkg/expvar/expvar.go
+++ /dev/null
@@ -1,288 +0,0 @@
-// Copyright 2009 The Go 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 expvar provides a standardized interface to public variables, such
-// as operation counters in servers. It exposes these variables via HTTP at
-// /debug/vars in JSON format.
-//
-// Operations to set or modify these public variables are atomic.
-//
-// In addition to adding the HTTP handler, this package registers the
-// following variables:
-//
-//	cmdline   os.Args
-//	memstats  runtime.Memstats
-//
-// The package is sometimes only imported for the side effect of
-// registering its HTTP handler and the above variables.  To use it
-// this way, simply link this package into your program:
-//	import _ "expvar"
-//
-package expvar
-
-import (
-	"bytes"
-	"fmt"
-	"http"
-	"json"
-	"log"
-	"os"
-	"runtime"
-	"strconv"
-	"sync"
-)
-
-// Var is an abstract type for all exported variables.
-type Var interface {
-	String() string
-}
-
-// Int is a 64-bit integer variable that satisfies the Var interface.
-type Int struct {
-	i  int64
-	mu sync.Mutex
-}
-
-func (v *Int) String() string { return strconv.Itoa64(v.i) }
-
-func (v *Int) Add(delta int64) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	v.i += delta
-}
-
-func (v *Int) Set(value int64) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	v.i = value
-}
-
-// Float is a 64-bit float variable that satisfies the Var interface.
-type Float struct {
-	f  float64
-	mu sync.Mutex
-}
-
-func (v *Float) String() string { return strconv.Ftoa64(v.f, 'g', -1) }
-
-// Add adds delta to v.
-func (v *Float) Add(delta float64) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	v.f += delta
-}
-
-// Set sets v to value.
-func (v *Float) Set(value float64) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	v.f = value
-}
-
-// Map is a string-to-Var map variable that satisfies the Var interface.
-type Map struct {
-	m  map[string]Var
-	mu sync.Mutex
-}
-
-// KeyValue represents a single entry in a Map.
-type KeyValue struct {
-	Key   string
-	Value Var
-}
-
-func (v *Map) String() string {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	b := new(bytes.Buffer)
-	fmt.Fprintf(b, "{")
-	first := true
-	for key, val := range v.m {
-		if !first {
-			fmt.Fprintf(b, ", ")
-		}
-		fmt.Fprintf(b, "\"%s\": %v", key, val.String())
-		first = false
-	}
-	fmt.Fprintf(b, "}")
-	return b.String()
-}
-
-func (v *Map) Init() *Map {
-	v.m = make(map[string]Var)
-	return v
-}
-
-func (v *Map) Get(key string) Var {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	return v.m[key]
-}
-
-func (v *Map) Set(key string, av Var) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	v.m[key] = av
-}
-
-func (v *Map) Add(key string, delta int64) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	av, ok := v.m[key]
-	if !ok {
-		av = new(Int)
-		v.m[key] = av
-	}
-
-	// Add to Int; ignore otherwise.
-	if iv, ok := av.(*Int); ok {
-		iv.Add(delta)
-	}
-}
-
-// AddFloat adds delta to the *Float value stored under the given map key.
-func (v *Map) AddFloat(key string, delta float64) {
-	v.mu.Lock()
-	defer v.mu.Unlock()
-	av, ok := v.m[key]
-	if !ok {
-		av = new(Float)
-		v.m[key] = av
-	}
-
-	// Add to Float; ignore otherwise.
-	if iv, ok := av.(*Float); ok {
-		iv.Add(delta)
-	}
-}
-
-// TODO(rsc): Make sure map access in separate thread is safe.
-func (v *Map) iterate(c chan<- KeyValue) {
-	for k, v := range v.m {
-		c <- KeyValue{k, v}
-	}
-	close(c)
-}
-
-func (v *Map) Iter() <-chan KeyValue {
-	c := make(chan KeyValue)
-	go v.iterate(c)
-	return c
-}
-
-// String is a string variable, and satisfies the Var interface.
-type String struct {
-	s string
-}
-
-func (v *String) String() string { return strconv.Quote(v.s) }
-
-func (v *String) Set(value string) { v.s = value }
-
-// Func implements Var by calling the function
-// and formatting the returned value using JSON.
-type Func func() interface{}
-
-func (f Func) String() string {
-	v, _ := json.Marshal(f())
-	return string(v)
-}
-
-
-// All published variables.
-var vars map[string]Var = make(map[string]Var)
-var mutex sync.Mutex
-
-// Publish declares an named exported variable. This should be called from a
-// package's init function when it creates its Vars. If the name is already
-// registered then this will log.Panic.
-func Publish(name string, v Var) {
-	mutex.Lock()
-	defer mutex.Unlock()
-	if _, existing := vars[name]; existing {
-		log.Panicln("Reuse of exported var name:", name)
-	}
-	vars[name] = v
-}
-
-// Get retrieves a named exported variable.
-func Get(name string) Var {
-	return vars[name]
-}
-
-// RemoveAll removes all exported variables.
-// This is for tests; don't call this on a real server.
-func RemoveAll() {
-	mutex.Lock()
-	defer mutex.Unlock()
-	vars = make(map[string]Var)
-}
-
-// Convenience functions for creating new exported variables.
-
-func NewInt(name string) *Int {
-	v := new(Int)
-	Publish(name, v)
-	return v
-}
-
-func NewFloat(name string) *Float {
-	v := new(Float)
-	Publish(name, v)
-	return v
-}
-
-func NewMap(name string) *Map {
-	v := new(Map).Init()
-	Publish(name, v)
-	return v
-}
-
-func NewString(name string) *String {
-	v := new(String)
-	Publish(name, v)
-	return v
-}
-
-// TODO(rsc): Make sure map access in separate thread is safe.
-func iterate(c chan<- KeyValue) {
-	for k, v := range vars {
-		c <- KeyValue{k, v}
-	}
-	close(c)
-}
-
-func Iter() <-chan KeyValue {
-	c := make(chan KeyValue)
-	go iterate(c)
-	return c
-}
-
-func expvarHandler(w http.ResponseWriter, r *http.Request) {
-	w.Header().Set("Content-Type", "application/json; charset=utf-8")
-	fmt.Fprintf(w, "{\n")
-	first := true
-	for name, value := range vars {
-		if !first {
-			fmt.Fprintf(w, ",\n")
-		}
-		first = false
-		fmt.Fprintf(w, "%q: %s", name, value)
-	}
-	fmt.Fprintf(w, "\n}\n")
-}
-
-func cmdline() interface{} {
-	return os.Args
-}
-
-func memstats() interface{} {
-	return runtime.MemStats
-}
-
-func init() {
-	http.Handle("/debug/vars", http.HandlerFunc(expvarHandler))
-	Publish("cmdline", Func(cmdline))
-	Publish("memstats", Func(memstats))
-}