* in between syncs with the system wall clock.
 * When issuing the first timestamp after the sync interval has expired,
 * The system wall clock will be read, and the current time set to the max of wall clock time or the most recently issued timestamp.
 * All other timestamps are calculated as the wall clock time at last sync + elapsed time since.
 * <p>
 * This clock deals relatively well when the system wall clock shift is adjusted by small amounts.

const minTimeForTicksPerSecond = 5_000_000*(1-osHasLowResClockInt) + 100_000_000*osHasLowResClockInt

// ticksPerSecond returns a conversion rate between the cputicks clock and the nanotime clock.
//
// Note: Clocks are hard. Using this as an actual conversion rate for timestamps is ill-advised
// and should be avoided when possible. Use only for durations, where a tiny error term isn't going

                                    + now
                                    + ", lastUpdated = " + lastUpdated + "). Please verify that the clocks of all"
                                    + " deploying machines are reasonably synchronized.");
                    versioning.setLastUpdated(now);
                    changed = true;
                }
            }

// no leap seconds.
//
// # Monotonic Clocks
//
// Operating systems provide both a “wall clock,” which is subject to
// changes for clock synchronization, and a “monotonic clock,” which is
// not. The general rule is that the wall clock is for telling time and
// the monotonic clock is for measuring time. Rather than split the API,

	{"ISOWeek", func(t1, t2 Time) bool {
		a1, b1 := t1.ISOWeek()
		a2, b2 := t2.ISOWeek()
		return a1 == a2 && b1 == b2
	}},
	{"Clock", func(t1, t2 Time) bool {
		a1, b1, c1 := t1.Clock()
		a2, b2, c2 := t2.Clock()
		return a1 == a2 && b1 == b2 && c1 == c2
	}},
	{"Hour", func(t1, t2 Time) bool { return t1.Hour() == t2.Hour() }},

// to abstract over the relationship of two Lock calls or an RLock
// and a Lock call.
type locker2 interface {
	Lock1()
	Unlock1()
	Lock2()
	Unlock2()
}

type mutex struct {
	mu sync.Mutex
}

func (m *mutex) Lock1()   { m.mu.Lock() }
func (m *mutex) Unlock1() { m.mu.Unlock() }
func (m *mutex) Lock2()   { m.mu.Lock() }
func (m *mutex) Unlock2() { m.mu.Unlock() }

import org.gradle.internal.service.scopes.Scope;
import org.gradle.internal.service.scopes.ServiceScope;

/**
 * A device for obtaining the current time.
 *
 * @see Time#clock()
 */
@ServiceScope(Scope.Global.class)
public interface Clock {

    /**
     * The current time in millis.
     */
    long getCurrentTime();

import okhttp3.internal.http2.Http2Stream
import okhttp3.internal.http2.Http2Writer

/**
 * Centralisation of central locks according to docs/contribute/concurrency.md
 */
internal object Locks {
  inline fun <T> Dispatcher.withLock(action: () -> T): T {
    contract { callsInPlace(action, InvocationKind.EXACTLY_ONCE) }
    return lock.withLock(action)
  }

  inline fun <T> RealConnection.withLock(action: () -> T): T {

	b1 = block & 0x0f0f00000f0f0000
	b2 = block & 0x0000f0f00000f0f0
	block ^= b1 ^ b2 ^ b1>>12 ^ b2<<12

	b1 = block >> 32 & 0xff00ff
	b2 = (block & 0xff00ff00)
	block ^= b1<<32 ^ b2 ^ b1<<8 ^ b2<<24

	b1 = block >> 48
	b2 = block << 48
	block ^= b1 ^ b2 ^ b1<<48 ^ b2>>48
	return block
}

// creates 16 28-bit blocks rotated according
// to the rotation schedule.

package ssa

import (
	"cmd/internal/src"
	"fmt"
)

// Block represents a basic block in the control flow graph of a function.
type Block struct {
	// A unique identifier for the block. The system will attempt to allocate
	// these IDs densely, but no guarantees.
	ID ID

	// Source position for block's control operation
	Pos src.XPos

	// The kind of block this is.
	Kind BlockKind

	// Likely direction for branches.