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75513575be
* store dependency's in git * since we vendor ... rm tech-depts * aad make target 'vendor' to update vendor folder (manual task)
107 lines
3.2 KiB
Go
107 lines
3.2 KiB
Go
// 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 provides a MySQL driver for Go's database/sql package.
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//
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// The driver should be used via the database/sql package:
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//
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// import "database/sql"
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// import _ "github.com/go-sql-driver/mysql"
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//
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// db, err := sql.Open("mysql", "user:password@/dbname")
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//
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// See https://github.com/go-sql-driver/mysql#usage for details
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package mysql
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import (
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"context"
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"database/sql"
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"database/sql/driver"
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"net"
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"sync"
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)
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// MySQLDriver is exported to make the driver directly accessible.
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// In general the driver is used via the database/sql package.
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type MySQLDriver struct{}
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// DialFunc is a function which can be used to establish the network connection.
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// Custom dial functions must be registered with RegisterDial
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//
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// Deprecated: users should register a DialContextFunc instead
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type DialFunc func(addr string) (net.Conn, error)
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// DialContextFunc is a function which can be used to establish the network connection.
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// Custom dial functions must be registered with RegisterDialContext
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type DialContextFunc func(ctx context.Context, addr string) (net.Conn, error)
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var (
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dialsLock sync.RWMutex
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dials map[string]DialContextFunc
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)
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// RegisterDialContext registers a custom dial function. It can then be used by the
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// network address mynet(addr), where mynet is the registered new network.
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// The current context for the connection and its address is passed to the dial function.
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func RegisterDialContext(net string, dial DialContextFunc) {
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dialsLock.Lock()
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defer dialsLock.Unlock()
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if dials == nil {
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dials = make(map[string]DialContextFunc)
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}
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dials[net] = dial
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}
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// RegisterDial registers a custom dial function. It can then be used by the
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// network address mynet(addr), where mynet is the registered new network.
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// addr is passed as a parameter to the dial function.
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//
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// Deprecated: users should call RegisterDialContext instead
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func RegisterDial(network string, dial DialFunc) {
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RegisterDialContext(network, func(_ context.Context, addr string) (net.Conn, error) {
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return dial(addr)
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})
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}
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// Open new Connection.
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// See https://github.com/go-sql-driver/mysql#dsn-data-source-name for how
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// the DSN string is formatted
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func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
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cfg, err := ParseDSN(dsn)
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if err != nil {
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return nil, err
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}
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c := &connector{
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cfg: cfg,
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}
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return c.Connect(context.Background())
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}
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func init() {
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sql.Register("mysql", &MySQLDriver{})
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}
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// NewConnector returns new driver.Connector.
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func NewConnector(cfg *Config) (driver.Connector, error) {
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cfg = cfg.Clone()
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// normalize the contents of cfg so calls to NewConnector have the same
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// behavior as MySQLDriver.OpenConnector
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if err := cfg.normalize(); err != nil {
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return nil, err
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}
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return &connector{cfg: cfg}, nil
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}
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// OpenConnector implements driver.DriverContext.
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func (d MySQLDriver) OpenConnector(dsn string) (driver.Connector, error) {
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cfg, err := ParseDSN(dsn)
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if err != nil {
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return nil, err
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}
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return &connector{
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cfg: cfg,
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}, nil
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}
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