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 {

			}
			hideRuntime = false // try again, and show all frames next time.
		}

		values[0], values[1] = scaleHeapSample(r.AllocObjects, r.AllocBytes, rate)
		values[2], values[3] = scaleHeapSample(r.InUseObjects(), r.InUseBytes(), rate)
		var blockSize int64
		if r.AllocObjects > 0 {
			blockSize = r.AllocBytes / r.AllocObjects
		}
		b.pbSample(values, locs, func() {
			if blockSize != 0 {
				b.pbLabel(tagSample_Label, "bytes", "", blockSize)

	a1, a2 := uintptr(addr1)+1, uintptr(addr2)+1
	rate := int64(512 * 1024)
	rec := []profilerecord.MemProfileRecord{
		{AllocBytes: 4096, FreeBytes: 1024, AllocObjects: 4, FreeObjects: 1, Stack: []uintptr{a1, a2}},
		{AllocBytes: 512 * 1024, FreeBytes: 0, AllocObjects: 1, FreeObjects: 0, Stack: []uintptr{a2 + 1, a2 + 2}},
		{AllocBytes: 512 * 1024, FreeBytes: 512 * 1024, AllocObjects: 1, FreeObjects: 1, Stack: []uintptr{a1 + 1, a1 + 2, a2 + 3}},
	}

	// other 4-column profiles where alloc != inuse.
	// The easiest way to avoid this bug is to adjust allocBytes so it's never == inuseBytes.
	// pprof doesn't use these header values anymore except for checking equality.
	inUseBytes := total.InUseBytes()
	allocBytes := total.AllocBytes
	if inUseBytes == allocBytes {
		allocBytes++
	}

	fmt.Fprintf(w, "heap profile: %d: %d [%d: %d] @ heap/%d\n",

type MemProfileRecord struct {
	AllocBytes, FreeBytes     int64       // number of bytes allocated, freed
	AllocObjects, FreeObjects int64       // number of objects allocated, freed
	Stack0                    [32]uintptr // stack trace for this record; ends at first 0 entry
}

// InUseBytes returns the number of bytes in use (AllocBytes - FreeBytes).