niki/vendor/github.com/go-sql-driver/mysql/errors.go

// Go MySQL Driver - A MySQL-Driver for Go's database/sql package

//

// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.

//

// This Source Code Form is subject to the terms of the Mozilla Public

// License, v. 2.0. If a copy of the MPL was not distributed with this file,

// You can obtain one at http://mozilla.org/MPL/2.0/.

package mysql

import (
	"errors"
	"fmt"
	"log"
	"os"
)

// Various errors the driver might return. Can change between driver versions.

var (
	ErrInvalidConn = errors.New("invalid connection")

	ErrMalformPkt = errors.New("malformed packet")

	ErrNoTLS = errors.New("TLS requested but server does not support TLS")

	ErrCleartextPassword = errors.New("this user requires clear text authentication. If you still want to use it, please add 'allowCleartextPasswords=1' to your DSN")

	ErrNativePassword = errors.New("this user requires mysql native password authentication.")

	ErrOldPassword = errors.New("this user requires old password authentication. If you still want to use it, please add 'allowOldPasswords=1' to your DSN. See also https://github.com/go-sql-driver/mysql/wiki/old_passwords")

	ErrUnknownPlugin = errors.New("this authentication plugin is not supported")

	ErrOldProtocol = errors.New("MySQL server does not support required protocol 41+")

	ErrPktSync = errors.New("commands out of sync. You can't run this command now")

	ErrPktSyncMul = errors.New("commands out of sync. Did you run multiple statements at once?")

	ErrPktTooLarge = errors.New("packet for query is too large. Try adjusting the 'max_allowed_packet' variable on the server")

	ErrBusyBuffer = errors.New("busy buffer")

	// errBadConnNoWrite is used for connection errors where nothing was sent to the database yet.

	// If this happens first in a function starting a database interaction, it should be replaced by driver.ErrBadConn

	// to trigger a resend.

	// See https://github.com/go-sql-driver/mysql/pull/302

	errBadConnNoWrite = errors.New("bad connection")
)

var errLog = Logger(log.New(os.Stderr, "[mysql] ", log.Ldate|log.Ltime|log.Lshortfile))

// Logger is used to log critical error messages.

type Logger interface {
	Print(v ...interface{})
}

// SetLogger is used to set the logger for critical errors.

// The initial logger is os.Stderr.

func SetLogger(logger Logger) error {

	if logger == nil {

		return errors.New("logger is nil")

	}

	errLog = logger

	return nil

}

// MySQLError is an error type which represents a single MySQL error

type MySQLError struct {
	Number uint16

	Message string
}

func (me *MySQLError) Error() string {

	return fmt.Sprintf("Error %d: %s", me.Number, me.Message)

}