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

package http

import (
	"context"
	"net"
	"syscall"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.
// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {

	return errors.Is(err, syscall.EIO)
}

// Check if the given error corresponds to EISDIR (is a directory).
func isSysErrIsDir(err error) bool {
	return errors.Is(err, syscall.EISDIR)
}

// Check if the given error corresponds to ENOTDIR (is not a directory).
func isSysErrNotDir(err error) bool {
	return errors.Is(err, syscall.ENOTDIR)
}

// Check if the given error corresponds to the ENAMETOOLONG (name too long).

	
  # Check the injection status of a pod under a deployment
  istioctl x check-inject deployment/details-v1

  # Check the injection status of a pod under a deployment in namespace test
  istioctl x check-inject deployment/details-v1 -n test

  # Check the injection status of label pairs in a specific namespace before actual injection 
  istioctl x check-inject -n test -l app=helloworld,version=v1
`,

	var (
		alterColumn bool
		isSameType  = fullDataType == realDataType
	)

	if !field.PrimaryKey {
		// check type
		if !strings.HasPrefix(fullDataType, realDataType) {
			// check type aliases
			aliases := m.DB.Migrator().GetTypeAliases(realDataType)
			for _, alias := range aliases {
				if strings.HasPrefix(fullDataType, alias) {
					isSameType = true

		// Host not empty, check if it is local
		return false, err
	}

	if host2 == "" {
		// If empty host means it is localhost
		addr2Local = true
	} else if addr2Local, err = isLocalHost(host2, port2, port2); err != nil {
		// Host not empty, check if it is local
		return false, err
	}

	// If both of addresses point to the same machine, check if
	// have the same port

	if patch.Type() != types.ApplyPatchType {
		return clnt.Patch(ctx, obj, patch, opts...)
	}
	check, ok := obj.DeepCopyObject().(client.Object)
	if !ok {
		return errors.New("could not check for object in fake client")
	}
	if err := clnt.Get(ctx, client.ObjectKeyFromObject(obj), check); kerrors.IsNotFound(err) {
		if err := clnt.Create(ctx, check); err != nil {
			return fmt.Errorf("could not inject object creation for fake: %w", err)
		}

)

var errEtcdUnreachable = errors.New("etcd is unreachable, please check your endpoints")

func etcdErrToErr(err error, etcdEndpoints []string) error {
	if err == nil {
		return nil
	}
	switch err {
	case context.DeadlineExceeded:
		return fmt.Errorf("%w %s", errEtcdUnreachable, etcdEndpoints)
	default:
		return fmt.Errorf("unexpected error %w from etcd, please check your endpoints %s", err, etcdEndpoints)
	}
}

	ErrInvalidArgument = errors.New("invalid argument")
	ErrKeyMissing      = errors.New("key is missing")
)

const (
	mcacheV1Check  = "/_mcache/v1/check"
	mcacheV1Update = "/_mcache/v1/update"
	mcacheV1Delete = "/_mcache/v1/delete"
)

// Get performs conditional check and returns the cached object info if any.
func (c Config) Get(r *CondCheck) (*ObjectInfo, error) {
	configLock.RLock()
	defer configLock.RUnlock()

	}

	if len(omits) > 0 {
		tx = tx.Omit(omits...)
	}

	return db.AddError(tx.Create(values).Error)
}

// check association values has been saved
// if values kind is Struct, check it has been saved
// if values kind is Slice/Array, check all items have been saved
var visitMapStoreKey = "gorm:saved_association_map"

func checkAssociationsSaved(db *gorm.DB, values reflect.Value) bool {

	const successTimeout = 20 * time.Second
	for l := 0; l < 100; l++ {
		for i := 0; i < dynamicTimeoutLogSize; i++ {
			timeout.LogSuccess(successTimeout)
		}
	}

	adjusted := timeout.Timeout()
	// Check whether eventual timeout is between initial value and success timeout
	if initial <= adjusted || adjusted <= successTimeout {
		t.Errorf("Failure to decrease timeout appropriately")
	}
}