// Package lock - implements filesystem locking wrappers around an
// open file descriptor.
package lock

import (
	"errors"
	"os"
	"sync"
)

// ErrAlreadyLocked is returned if the underlying fd is already locked.
var ErrAlreadyLocked = errors.New("file already locked")

// RLockedFile represents a read locked file, implements a special

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

package cachevalue

import (
	"context"
	"errors"
	"testing"
	"time"
)

func slowCaller(ctx context.Context) error {
	sl := time.NewTimer(time.Second)
	defer sl.Stop()

	select {
	case <-sl.C:
	case <-ctx.Done():
		return ctx.Err()
	}

	return nil
}

	lockSource := getSource(2)
	start := UTCNow()

	newCtx, cancel := context.WithCancel(ctx)
	if !di.rwMutex.GetRLock(ctx, cancel, di.opsID, lockSource, dsync.Options{
		Timeout:       timeout.Timeout(),
		RetryInterval: timeout.RetryInterval(),
	}) {
		timeout.LogFailure()
		defer cancel()
		if errors.Is(newCtx.Err(), context.Canceled) {

package sql

import (
	"errors"
	"strings"
)

var (
	errMalformedEscapeSequence  = errors.New("Malformed escape sequence in LIKE clause")
	errInvalidTrimArg           = errors.New("Trim argument is invalid - this should not happen")
	errInvalidSubstringIndexLen = errors.New("Substring start index or length falls outside the string")
)

const (

package bufio

import (
	"bytes"
	"errors"
	"io"
	"strings"
	"unicode/utf8"
)

const (
	defaultBufSize = 4096
)

var (
	ErrInvalidUnreadByte = errors.New("bufio: invalid use of UnreadByte")
	ErrInvalidUnreadRune = errors.New("bufio: invalid use of UnreadRune")
	ErrBufferFull        = errors.New("bufio: buffer full")
	ErrNegativeCount     = errors.New("bufio: negative count")
)

// Buffered input.

- At the popup window, click `Import Settings from VCS`. Wait a few seconds. 
  - If the error says "Context Parameter 'Branch' missing", it's ok. Click into the error and add a context parameter `Branch` with value `myTestBranch`. Go back and it automatically reloads.
  - If there are any errors, read the error and fix your code.

	key   []byte
}

// Version returns the version of the builtin KMS.
func (secretKey) Version(ctx context.Context) (string, error) { return "v1", nil }

// APIs returns an error since the builtin KMS does not provide a list of APIs.
func (secretKey) APIs(ctx context.Context) ([]madmin.KMSAPI, error) {
	return nil, ErrNotSupported
}

// Status returns a set of endpoints and their KMS status. Since, the builtin KMS is not

	if err != nil {
		return tls.Certificate{}, ErrTLSUnexpectedData(nil).Msg(err.Error())
	}
	return cert, nil
}

// EnsureCertAndKey checks if both client certificate and key paths are provided
func EnsureCertAndKey(clientCert, clientKey string) error {
	if (clientCert != "" && clientKey == "") ||
		(clientCert == "" && clientKey != "") {
		return errors.New("cert and key must be specified as a pair")
	}
	return nil

}

func (db *PreparedStmtDB) Ping() error {
	conn, err := db.GetDBConn()
	if err != nil {
		return err
	}
	return conn.Ping()
}

type PreparedStmtTX struct {
	Tx
	PreparedStmtDB *PreparedStmtDB
}

func (db *PreparedStmtTX) GetDBConn() (*sql.DB, error) {
	return db.PreparedStmtDB.GetDBConn()
}

func (tx *PreparedStmtTX) Commit() error {

		return b2
	case HighwayHash256:
		hh, _ := highwayhash.New(magicHighwayHash256Key) // New will never return error since key is 256 bit
		return hh
	case HighwayHash256S:
		hh, _ := highwayhash.New(magicHighwayHash256Key) // New will never return error since key is 256 bit
		return hh
	default:
		logger.CriticalIf(GlobalContext, errors.New("Unsupported bitrot algorithm"))