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87 lines
1.6 KiB
Go
87 lines
1.6 KiB
Go
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
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//
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// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package mysql
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import (
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"database/sql/driver"
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"io"
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)
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type mysqlField struct {
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fieldType byte
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flags fieldFlag
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name string
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}
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type mysqlRows struct {
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mc *mysqlConn
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columns []mysqlField
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}
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type binaryRows struct {
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mysqlRows
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}
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type textRows struct {
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mysqlRows
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}
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func (rows *mysqlRows) Columns() []string {
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columns := make([]string, len(rows.columns))
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for i := range columns {
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columns[i] = rows.columns[i].name
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}
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return columns
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}
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func (rows *mysqlRows) Close() error {
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mc := rows.mc
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if mc == nil {
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return nil
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}
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if mc.netConn == nil {
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return errInvalidConn
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}
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// Remove unread packets from stream
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err := mc.readUntilEOF()
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rows.mc = nil
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return err
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}
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func (rows *binaryRows) Next(dest []driver.Value) error {
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if mc := rows.mc; mc != nil {
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if mc.netConn == nil {
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return errInvalidConn
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}
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// Fetch next row from stream
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if err := rows.readRow(dest); err != io.EOF {
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return err
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}
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rows.mc = nil
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}
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return io.EOF
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}
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func (rows *textRows) Next(dest []driver.Value) error {
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if mc := rows.mc; mc != nil {
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if mc.netConn == nil {
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return errInvalidConn
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}
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// Fetch next row from stream
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if err := rows.readRow(dest); err != io.EOF {
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return err
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}
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rows.mc = nil
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}
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return io.EOF
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}
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