import okhttp3.Dispatcher
import okhttp3.internal.http2.Http2Connection
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)
  }

 *       Thread acquires its first hold (and releases its last remaining hold).
 *   <li>Before the lock is acquired, the lock is checked against the current set of acquired
 *       locks---to each of the acquired locks, an edge from the soon-to-be-acquired lock is either
 *       verified or created.
 *   <li>If a new edge needs to be created, the outgoing edges of the acquired locks are traversed

			break
		}
	}

	quorumLocked := checkQuorumLocked(locks, quorum) && locksFailed <= tolerance
	if !quorumLocked {
		log("dsync: Unable to acquire lock in quorum %#v\n", args)
		// Release all acquired locks without quorum.
		if !releaseAll(ctx, ds, tolerance, owner, locks, isReadLock, restClnts, names...) {
			log("Unable to release acquired locks, these locks will expire automatically %#v\n", args)
		}
	}

const (
	// Lock maintenance interval.
	lockMaintenanceInterval = 1 * time.Minute

	// Lock validity duration
	lockValidityDuration = 1 * time.Minute
)

// lockMaintenance loops over all locks and discards locks
// that have not been refreshed for some time.
func lockMaintenance(ctx context.Context) {
	if !globalIsDistErasure {
		return
	}

	// Initialize a new ticker with 1 minute between each ticks.

 * object). So it is important to not call {@link #dispatch} while holding any locks. This is why
 * {@link #enqueue} and {@link #dispatch} are 2 different methods. It is expected that the decision
 * to run a particular event is made during the state change, but the decision to actually invoke
 * the listeners can be delayed slightly so that locks can be dropped. Also, because {@link

	}

	ignoredErrs := []error{
		errFileNotFound,
		errVolumeNotFound,
		errFileVersionNotFound,
		io.ErrUnexpectedEOF, // some times we would read without locks, ignore these errors
		io.EOF,              // some times we would read without locks, ignore these errors
		context.DeadlineExceeded,
		context.Canceled,
	}
	ignoredErrs = append(ignoredErrs, objectOpIgnoredErrs...)

	errs := g.Wait()

import java.net.SocketTimeoutException
import java.util.ArrayDeque
import java.util.concurrent.locks.Condition
import java.util.concurrent.locks.ReentrantLock
import okhttp3.Headers
import okhttp3.internal.EMPTY_HEADERS
import okhttp3.internal.assertNotHeld
import okhttp3.internal.connection.Locks.withLock
import okhttp3.internal.http2.flowcontrol.WindowCounter
import okhttp3.internal.toHeaderList

import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import org.apache.maven.api.SessionData;
import org.apache.maven.api.services.MessageBuilderFactory;
import org.apache.maven.artifact.Artifact;

package cmd

import (
	"context"
	"runtime"
	"time"

	"github.com/prometheus/procfs"
)

const (
	processLocksReadTotal           = "locks_read_total"
	processLocksWriteTotal          = "locks_write_total"
	processCPUTotalSeconds          = "cpu_total_seconds"
	processGoRoutineTotal           = "go_routine_total"
	processIORCharBytes             = "io_rchar_bytes"

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import junit.framework.TestCase;

/**
 * Unittests for {@link CycleDetectingLockFactory}.
 *
 * @author Darick Tong
 */