var pubCache bcache.Cache[PublicKey, boringPub]
var privCache bcache.Cache[PrivateKey, boringPriv]

func init() {
	pubCache.Register()
	privCache.Register()
}

type boringPub struct {
	key  *boring.PublicKeyECDSA
	orig PublicKey
}

func boringPublicKey(pub *PublicKey) (*boring.PublicKeyECDSA, error) {
	b := pubCache.Get(pub)
	if b != nil && publicKeyEqual(&b.orig, pub) {

symlink $GOROOT -> $TESTGO_GOROOT

# Set up fresh GOCACHE
env GOCACHE=$WORK/gocache1
mkdir $GOCACHE

# Build a simple binary
go build -o binary1 -trimpath -x main.go

# Now repeat the same process with the compiler at a different local path
env GOROOT=$WORK/goroot2
symlink $GOROOT -> $TESTGO_GOROOT

env GOCACHE=$WORK/gocache2
mkdir $GOCACHE

go build -o binary2 -trimpath -x main.go

env GO111MODULE=off
[short] skip

# Set up fresh GOCACHE.
env GOCACHE=$WORK/gocache
mkdir $GOCACHE

# Building trivial non-main package should run compiler the first time.
go build -x lib.go
stderr '(compile|gccgo)( |\.exe).*lib\.go'

# ... but not again ...
go build -x lib.go
! stderr '(compile|gccgo)( |\.exe).*lib\.go'

# ... unless we use -a.
go build -a -x lib.go
stderr '(compile|gccgo)( |\.exe)'

-- lib.go --

// Copyright 2018 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.

// Parallel cache.
// This file is copied from cmd/go/internal/par.

package sumdb

import (
	"sync"
	"sync/atomic"
)

// parCache runs an action once per key and caches the result.
type parCache struct {
	m sync.Map
}

type cacheEntry struct {
	done   uint32

// are still safe to use after they are removed from the cache.
//
// Certificates are returned wrapped in an activeCert struct that should be held by
// the caller. When references to the activeCert are freed, the number of references
// to the certificate in the cache is decremented. Once the number of references
// reaches zero, the entry is evicted from the cache.
//

// limitations under the License.

package cache

import (
	"sync"

	"istio.io/istio/operator/pkg/metrics"
	"istio.io/istio/operator/pkg/object"
)

// ObjectCache is a cache of objects,
type ObjectCache struct {
	// Cache is a cache keyed by object Hash() function.
	Cache map[string]*object.K8sObject
	Mu    *sync.RWMutex
}

var (

env GO111MODULE=off
env GODEBUG=gocachetest=1

[!compiler:gc] skip
[short] skip # clears cache, rebuilds too much

# Set up fresh GOCACHE.
env GOCACHE=$WORK/gocache
mkdir $GOCACHE

# Building a trivial non-main package should run compiler the first time.
go build -x -gcflags=-m lib.go
stderr 'compile( |\.exe"?)'
stderr 'lib.go:2.* can inline f'

# ... but not the second, even though it still prints the compiler output.

  /** Discards all entries in the cache. */
  void invalidateAll();

  /** Returns the approximate number of entries in this cache. */
  long size();

  /**
   * Returns a current snapshot of this cache's cumulative statistics, or a set of default values if
   * the cache is not recording statistics. All statistics begin at zero and never decrease over the
   * lifetime of the cache.
   *

// Package cache implements a build artifact cache.
package cache

import (
	"bytes"
	"crypto/sha256"
	"encoding/hex"
	"errors"
	"fmt"
	"internal/godebug"
	"io"
	"io/fs"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"time"

	"cmd/go/internal/lockedfile"
	"cmd/go/internal/mmap"
)

// An ActionID is a cache action key, the hash of a complete description of a

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package bcache implements a GC-friendly cache (see [Cache]) for BoringCrypto.
package bcache

import (
	"sync/atomic"
	"unsafe"
)

// A Cache is a GC-friendly concurrent map from unsafe.Pointer to
// unsafe.Pointer. It is meant to be used for maintaining shadow