* // filter will not be deleted.
 * task sync(type: Sync) {
 *     from 'source'
 *     into 'dest'
 *     preserve {
 *         include 'extraDir/**'
 *         include 'dir1/**'
 *         exclude 'dir1/extra.txt'
 *     }
 * }
 * </pre>
 */
@DisableCachingByDefault(because = "Not worth caching")
public abstract class Sync extends AbstractCopyTask {

		p1.To.Reg = out
		// BNE
		p2 := s.Prog(ppc64.ABNE)
		p2.To.Type = obj.TYPE_BRANCH
		// ISYNC
		pisync := s.Prog(ppc64.AISYNC)
		pisync.To.Type = obj.TYPE_NONE
		p2.To.SetTarget(pisync)

	case ssa.OpPPC64LoweredAtomicStore8,
		ssa.OpPPC64LoweredAtomicStore32,
		ssa.OpPPC64LoweredAtomicStore64:
		// SYNC or LWSYNC
		// MOVB/MOVW/MOVD arg1,(arg0)
		st := ppc64.AMOVD
		switch v.Op {

	case PASTECC:
		// paste. has two input registers, and an L field, unlike other 3 operand instructions.
		return op + " " + args[0] + "," + args[1] + "," + args[2]
	case SYNC:
		if args[0] == "$1" {
			return "LWSYNC"
		}
		return "HWSYNC"

	case ISEL:
		return "ISEL " + args[3] + "," + args[1] + "," + args[2] + "," + args[0]

	// store instructions always have the memory operand at the end, no need to reorder

}

func (g *Granted) isLocked() bool {
	return isLocked(g.lockUID)
}

func isLocked(uid string) bool {
	return len(uid) > 0
}

// NewDRWMutex - initializes a new dsync RW mutex.
func NewDRWMutex(clnt *Dsync, names ...string) *DRWMutex {
	restClnts, _ := clnt.GetLockers()
	sort.Strings(names)
	return &DRWMutex{
		writeLocks:           make([]string, len(restClnts)),

# ~~Async SQL (Relational) Databases with Encode/Databases~~ (deprecated)

!!! info
    These docs are about to be updated. 🎉

    The current version assumes Pydantic v1.

    The new docs will include Pydantic v2 and will use <a href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">SQLModel</a> once it is updated to use Pydantic v2 as well.

!!! warning "Deprecated"

replicate objects one at a time so as not to impede server load. Ideally, resync should not be initiated for multiple buckets simultaneously - progress of the syncing can be monitored by looking at `mc replicate resync status alias/bucket --remote-bucket <arn>`. In the event that resync operation failed to replicate some versions, they would be picked up by the healing mechanism in-built as part of the scanner. If the resync operation reports a failed status or in the event of a cluster restart while...

				gnuArg(&inst, 2, inst.Args[2], PC))
			buf.WriteString(asm)
			startArg = 4
		}

	case "sync":
		lsc := inst.Args[0].(Imm)<<4 | inst.Args[1].(Imm)
		switch lsc {
		case 0x00:
			buf.WriteString("hwsync")
			startArg = 2
		case 0x10:
			buf.WriteString("lwsync")
			startArg = 2
		default:
			buf.WriteString(opName)
		}

	case "lbarx", "lharx", "lwarx", "ldarx":

	}
	if openmode&O_TRUNC != 0 {
		flags |= nodeTRUNC
	}
	if openmode&O_APPEND != 0 {
		flags |= nodeAPPEND
	}
	if openmode&O_EXCL != 0 {
		flags |= nodeEXCL
	}
	if openmode&O_SYNC != 0 {
		return 0, errors.New("syscall.Open: O_SYNC is not supported by js/wasm")
	}

	jsFD, err := fsCall("open", path, flags, perm)
	if err != nil {
		return 0, err
	}
	fd := jsFD.Int()

	var entries []string

package main

import (
	"log"
	"runtime"

	"./mysync"
)

func main() {
	var wg mysync.WaitGroup
	wg.Done()
	ci := runtime.CallersFrames(wg.Callers)
	frames := make([]runtime.Frame, 0, 4)
	for {
		frame, more := ci.Next()
		frames = append(frames, frame)
		if !more {
			break
		}
	}
	expecting := []string{
		"test/mysync.(*WaitGroup).Add",
		"test/mysync.(*WaitGroup).Done",
	}
	for i := 0; i < 2; i++ {

		lockType |= syscall.LOCK_EX
	default:
		return nil, &os.PathError{
			Op:   "open",
			Path: path,
			Err:  syscall.EINVAL,
		}
	}

	f, err := os.OpenFile(path, flag|syscall.O_SYNC, perm)
	if err != nil {
		return nil, err
	}

	if err = syscall.Flock(int(f.Fd()), lockType); err != nil {
		f.Close()
		if err == syscall.EWOULDBLOCK {
			err = ErrAlreadyLocked
		}
		return nil, err