// GoState represents the state of a goroutine.
//
// New GoStates may be added in the future. Users of this type must be robust
// to that possibility.
type GoState uint8

const (
	GoUndetermined GoState = iota // No information is known about the goroutine.
	GoNotExist                    // Goroutine does not exist.
	GoRunnable                    // Goroutine is runnable but not running.

type Signal int

const (
	_ Signal = iota
	SIGCHLD
	SIGINT
	SIGKILL
	SIGTRAP
	SIGQUIT
	SIGTERM
)

func (s Signal) Signal() {}

func (s Signal) String() string {
	if 0 <= s && int(s) < len(signals) {
		str := signals[s]
		if str != "" {
			return str
		}
	}
	return "signal " + itoa.Itoa(int(s))
}

var signals = [...]string{}

// File system

package benchmark

import (
	"fmt"
	"io"
	"os"
	"runtime"
	"runtime/pprof"
	"time"
	"unicode"
)

type Flags int

const (
	GC         = 1 << iota
	NoGC Flags = 0
)

type Metrics struct {
	gc        Flags
	marks     []*mark
	curMark   *mark
	filebase  string
	pprofFile *os.File
}

type mark struct {
	name              string

//
// https://android.googlesource.com/platform/system/core/+/refs/tags/android-6.0.1_r78/liblog/logd_write.c
type loggerType int32

const (
	unknown loggerType = iota
	legacy
	logd
	// TODO(hakim): logging for emulator?
)

var logger loggerType

func writeErr(b []byte) {
	if len(b) == 0 {
		return
	}

	if logger == unknown {

	// inaccessible   x.foo   !=    foo    cannot refer to unexported field foo
	// missing        x.foo   !=    foO    type X has no field or method foo

	const (
		ok           = iota
		missing      // no object found
		misspelled   // found object with different spelling
		unexported   // found object with name differing only in first letter

type SymKind uint8

// Defined SymKind values.
//
// TODO(rsc): Give idiomatic Go names.
//
//go:generate stringer -type=SymKind
const (
	Sxxx SymKind = iota
	STEXT
	SELFRXSECT
	SMACHOPLT

	// Read-only sections.
	STYPE
	SSTRING
	SGOSTRING
	SGOFUNC
	SGCBITS
	SRODATA
	SFUNCTAB

	SELFROSECT

	// Read-only sections with relocations.
	//

		st[c] = s
	}
	return s
}

// A FilterType represents a filter type.
type FilterType int

const (
	FilterSocket        FilterType = iota // for Socket
	FilterConnect                         // for Connect or ConnectEx
	FilterListen                          // for Listen
	FilterAccept                          // for Accept, Accept4 or AcceptEx

// that function to allow multiple instances of that function
// to execute concurrently without clobbering each others' data.
type initContext uint8

const (
	inInitFunction initContext = iota
	inNonInitFunction
)

func (c initContext) String() string {
	if c == inInitFunction {
		return "inInitFunction"
	}
	return "inNonInitFunction"
}

	if paramResultInfo.InRegistersUsed()+paramResultInfo.OutRegistersUsed() > 0 {
		reg = &regInfo{}
	}
	return &AuxCall{Fn: fn, abiInfo: paramResultInfo, reg: reg}
}

const (
	auxNone           auxType = iota
	auxBool                   // auxInt is 0/1 for false/true
	auxInt8                   // auxInt is an 8-bit integer
	auxInt16                  // auxInt is a 16-bit integer

	case BLAKE2b_256:
		return "BLAKE2b-256"
	case BLAKE2b_384:
		return "BLAKE2b-384"
	case BLAKE2b_512:
		return "BLAKE2b-512"
	default:
		return "unknown hash value " + strconv.Itoa(int(h))
	}
}

const (
	MD4         Hash = 1 + iota // import golang.org/x/crypto/md4
	MD5                         // import crypto/md5
	SHA1                        // import crypto/sha1
	SHA224                      // import crypto/sha256