3601392501

Build Type

push

github

Committed by GitHub

Commit Message

update changelog for Version 1.7 (#1376)

Run Details

2932 of 3584 relevant lines covered (81.81%)

1490385.18 hits per line

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78.57

/conncheck.go

// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2019 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/.

//go:build linux || darwin || dragonfly || freebsd || netbsd || openbsd || solaris || illumos
// +build linux darwin dragonfly freebsd netbsd openbsd solaris illumos

package mysql

import (
        "errors"
        "io"
        "net"
        "syscall"
)

var errUnexpectedRead = errors.New("unexpected read from socket")

func connCheck(conn net.Conn) error {
        var sysErr error

        sysConn, ok := conn.(syscall.Conn)
        if !ok {
                return nil
        }
        rawConn, err := sysConn.SyscallConn()
        if err != nil {
                return err
        }

        err = rawConn.Read(func(fd uintptr) bool {
                var buf [1]byte
                n, err := syscall.Read(int(fd), buf[:])
                switch {
                case n == 0 && err == nil:
                        sysErr = io.EOF
                case n > 0:
                        sysErr = errUnexpectedRead
                case err == syscall.EAGAIN || err == syscall.EWOULDBLOCK:
                        sysErr = nil
                default:
                        sysErr = err
                }
                return true
        })
        if err != nil {
                return err
        }

        return sysErr
}

1	// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
2	//
3	// Copyright 2019 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	//go:build linux \|\| darwin \|\| dragonfly \|\| freebsd \|\| netbsd \|\| openbsd \|\| solaris \|\| illumos
10	// +build linux darwin dragonfly freebsd netbsd openbsd solaris illumos
11
12	package mysql
13
14	import (
15	"errors"
16	"io"
17	"net"
18	"syscall"
19	)
20
21	var errUnexpectedRead = errors.New("unexpected read from socket")
22
23	func connCheck(conn net.Conn) error {	19,628✔
24	var sysErr error	19,628✔
25		19,628✔
26	sysConn, ok := conn.(syscall.Conn)	19,628✔
27	if !ok {	19,628✔
28	return nil	×
29	}	×
30	rawConn, err := sysConn.SyscallConn()	19,628✔
31	if err != nil {	19,628✔
32	return err	×
33	}	×
34
35	err = rawConn.Read(func(fd uintptr) bool {	39,256✔
36	var buf [1]byte	19,628✔
37	n, err := syscall.Read(int(fd), buf[:])	19,628✔
38	switch {	19,628✔
39	case n == 0 && err == nil:	12✔
40	sysErr = io.EOF	12✔
41	case n > 0:	24✔
42	sysErr = errUnexpectedRead	24✔
43	case err == syscall.EAGAIN \|\| err == syscall.EWOULDBLOCK:	19,568✔
44	sysErr = nil	19,568✔
45	default:	24✔
46	sysErr = err	24✔
47	}
48	return true	19,628✔
49	})
50	if err != nil {	19,628✔
51	return err	×
52	}	×
53
54	return sysErr	19,628✔
55	}

go-sql-driver / mysql / 3601392501

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