github.com/hellobchain/third_party@v0.0.0-20230331131523-deb0478a2e52/go-sql-driver/mysql/errors.go (about) 1 // Go MySQL Driver - A MySQL-Driver for Go's database/sql package 2 // 3 // Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved. 4 // 5 // This Source Code Form is subject to the terms of the Mozilla Public 6 // License, v. 2.0. If a copy of the MPL was not distributed with this file, 7 // You can obtain one at http://mozilla.org/MPL/2.0/. 8 9 package mysql 10 11 import ( 12 "errors" 13 "fmt" 14 "log" 15 "os" 16 ) 17 18 // Various errors the driver might return. Can change between driver versions. 19 var ( 20 ErrInvalidConn = errors.New("invalid connection") 21 ErrMalformPkt = errors.New("malformed packet") 22 ErrNoTLS = errors.New("TLS requested but server does not support TLS") 23 ErrCleartextPassword = errors.New("this user requires clear text authentication. If you still want to use it, please add 'allowCleartextPasswords=1' to your DSN") 24 ErrNativePassword = errors.New("this user requires mysql native password authentication.") 25 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") 26 ErrUnknownPlugin = errors.New("this authentication plugin is not supported") 27 ErrOldProtocol = errors.New("MySQL server does not support required protocol 41+") 28 ErrPktSync = errors.New("commands out of sync. You can't run this command now") 29 ErrPktSyncMul = errors.New("commands out of sync. Did you run multiple statements at once?") 30 ErrPktTooLarge = errors.New("packet for query is too large. Try adjusting the 'max_allowed_packet' variable on the server") 31 ErrBusyBuffer = errors.New("busy buffer") 32 33 // errBadConnNoWrite is used for connection errors where nothing was sent to the database yet. 34 // If this happens first in a function starting a database interaction, it should be replaced by driver.ErrBadConn 35 // to trigger a resend. 36 // See https://github.com/go-sql-driver/mysql/pull/302 37 errBadConnNoWrite = errors.New("bad connection") 38 ) 39 40 var errLog = Logger(log.New(os.Stderr, "[mysql] ", log.Ldate|log.Ltime|log.Lshortfile)) 41 42 // Logger is used to log critical error messages. 43 type Logger interface { 44 Print(v ...interface{}) 45 } 46 47 // SetLogger is used to set the logger for critical errors. 48 // The initial logger is os.Stderr. 49 func SetLogger(logger Logger) error { 50 if logger == nil { 51 return errors.New("logger is nil") 52 } 53 errLog = logger 54 return nil 55 } 56 57 // MySQLError is an error type which represents a single MySQL error 58 type MySQLError struct { 59 Number uint16 60 Message string 61 } 62 63 func (me *MySQLError) Error() string { 64 return fmt.Sprintf("Error %d: %s", me.Number, me.Message) 65 }