package profilerecord

type StackRecord struct {
	Stack []uintptr
}

type MemProfileRecord struct {
	AllocBytes, FreeBytes     int64
	AllocObjects, FreeObjects int64
	Stack                     []uintptr
}

func (r *MemProfileRecord) InUseBytes() int64   { return r.AllocBytes - r.FreeBytes }
func (r *MemProfileRecord) InUseObjects() int64 { return r.AllocObjects - r.FreeObjects }

type BlockProfileRecord struct {

	// The loop should only execute one iteration in the common case.
	var p []runtime.MemProfileRecord
	n, ok := runtime.MemProfile(nil, true)
	for {
		// Allocate room for a slightly bigger profile,
		// in case a few more entries have been added
		// since the call to MemProfile.
		p = make([]runtime.MemProfileRecord, n+50)
		n, ok = runtime.MemProfile(p, true)
		if ok {
			p = p[0:n]
			break
		}

	for i := 0; i < 5; i++ {
		runtime.GC()
		time.Sleep(10 * time.Millisecond)
	}
	// Read memory profile.
	var prof []runtime.MemProfileRecord
	for {
		if n, ok := runtime.MemProfile(prof, false); ok {
			prof = prof[:n]
			break
		} else {
			prof = make([]runtime.MemProfileRecord, n+10)
		}
	}
	// See how much memory in tiny objects is profiled.
	var totalBytes int64
	for _, p := range prof {

	addr1, addr2, map1, map2 := testPCs(t)

	// MemProfileRecord stacks are return PCs, so add one to the
	// addresses recorded in the "profile". The proto profile
	// locations are call PCs, so conversion will subtract one
	// from these and get back to addr1 and addr2.
	a1, a2 := uintptr(addr1)+1, uintptr(addr2)+1
	rate := int64(512 * 1024)
	rec := []profilerecord.MemProfileRecord{

// is not used and the link type guarantees nobody else could use it
// elsewhere.
var disableMemoryProfiling bool

// A MemProfileRecord describes the live objects allocated
// by a particular call sequence (stack trace).
type MemProfileRecord struct {
	AllocBytes, FreeBytes     int64       // number of bytes allocated, freed
	AllocObjects, FreeObjects int64       // number of objects allocated, freed

import (
	"internal/profilerecord"
	"io"
	"math"
	"runtime"
	"strings"
)

// writeHeapProto writes the current heap profile in protobuf format to w.
func writeHeapProto(w io.Writer, p []profilerecord.MemProfileRecord, rate int64, defaultSampleType string) error {
	b := newProfileBuilder(w)
	b.pbValueType(tagProfile_PeriodType, "space", "bytes")
	b.pb.int64Opt(tagProfile_Period, rate)

	// The loop should only execute one iteration in the common case.
	var p []profilerecord.MemProfileRecord
	n, ok := pprof_memProfileInternal(nil, true)
	for {
		// Allocate room for a slightly bigger profile,
		// in case a few more entries have been added
		// since the call to MemProfile.
		p = make([]profilerecord.MemProfileRecord, n+50)
		n, ok = pprof_memProfileInternal(p, true)
		if ok {
			p = p[0:n]
			break

		{"LockOSThread", Func, 0},
		{"MemProfile", Func, 0},
		{"MemProfileRate", Var, 0},
		{"MemProfileRecord", Type, 0},
		{"MemProfileRecord.AllocBytes", Field, 0},
		{"MemProfileRecord.AllocObjects", Field, 0},
		{"MemProfileRecord.FreeBytes", Field, 0},
		{"MemProfileRecord.FreeObjects", Field, 0},
		{"MemProfileRecord.Stack0", Field, 0},
		{"MemStats", Type, 0},
		{"MemStats.Alloc", Field, 0},

	}
	for i := range prefix {
		if stk[i] != prefix[i] {
			return false
		}
	}
	return true
}

// ensure that stack records are valid map keys (comparable)
var _ = map[runtime.MemProfileRecord]struct{}{}
var _ = map[runtime.StackRecord]struct{}{}

// allocDeep calls itself n times before calling fn.
func allocDeep(n int) {
	if n > 1 {
		allocDeep(n - 1)
		return
	}

pkg runtime, type Func struct
pkg runtime, type MemProfileRecord struct
pkg runtime, type MemProfileRecord struct, AllocBytes int64
pkg runtime, type MemProfileRecord struct, AllocObjects int64
pkg runtime, type MemProfileRecord struct, FreeBytes int64
pkg runtime, type MemProfileRecord struct, FreeObjects int64
pkg runtime, type MemProfileRecord struct, Stack0 [32]uintptr
pkg runtime, type MemStats struct