RefreshCall:     drwMutexRefreshCallTimeout,
	UnlockCall:      drwMutexUnlockCallTimeout,
	ForceUnlockCall: drwMutexForceUnlockCallTimeout,
}

// A DRWMutex is a distributed mutual exclusion lock.
type DRWMutex struct {
	Names                []string
	writeLocks           []string // Array of nodes that granted a write lock
	readLocks            []string // Array of array of nodes that granted reader locks

	XMLName xml.Name `xml:"VersioningConfiguration"`
	// MFADelete State    `xml:"MFADelete,omitempty"` // not supported yet.
	Status State `xml:"Status,omitempty"`
	// MinIO extension - allows selective, prefix-level versioning exclusion.
	// Requires versioning to be enabled
	ExcludedPrefixes []ExcludedPrefix `xml:",omitempty"`
	ExcludeFolders   bool             `xml:",omitempty"`
}

// Validate - validates the versioning configuration

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package lsync

import (
	"context"
	"math"
	"math/rand"
	"sync"
	"time"
)

// A LRWMutex is a mutual exclusion lock with timeouts.
type LRWMutex struct {
	id          string
	source      string
	isWriteLock bool
	ref         int
	mu          sync.Mutex // Mutex to prevent multiple simultaneous locks
}