From 8c12c6939aab9106db14ec2d11d983bc5b29fb2c Mon Sep 17 00:00:00 2001
From: Niall Sheridan <nsheridan@gmail.com>
Date: Sun, 7 Jul 2019 21:33:44 +0100
Subject: Switch to modules

---
 vendor/github.com/go-sql-driver/mysql/buffer.go | 147 ------------------------
 1 file changed, 147 deletions(-)
 delete mode 100644 vendor/github.com/go-sql-driver/mysql/buffer.go

(limited to 'vendor/github.com/go-sql-driver/mysql/buffer.go')

diff --git a/vendor/github.com/go-sql-driver/mysql/buffer.go b/vendor/github.com/go-sql-driver/mysql/buffer.go
deleted file mode 100644
index eb4748b..0000000
--- a/vendor/github.com/go-sql-driver/mysql/buffer.go
+++ /dev/null
@@ -1,147 +0,0 @@
-// 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 (
-	"io"
-	"net"
-	"time"
-)
-
-const defaultBufSize = 4096
-
-// A buffer which is used for both reading and writing.
-// This is possible since communication on each connection is synchronous.
-// In other words, we can't write and read simultaneously on the same connection.
-// The buffer is similar to bufio.Reader / Writer but zero-copy-ish
-// Also highly optimized for this particular use case.
-type buffer struct {
-	buf     []byte
-	nc      net.Conn
-	idx     int
-	length  int
-	timeout time.Duration
-}
-
-func newBuffer(nc net.Conn) buffer {
-	var b [defaultBufSize]byte
-	return buffer{
-		buf: b[:],
-		nc:  nc,
-	}
-}
-
-// fill reads into the buffer until at least _need_ bytes are in it
-func (b *buffer) fill(need int) error {
-	n := b.length
-
-	// move existing data to the beginning
-	if n > 0 && b.idx > 0 {
-		copy(b.buf[0:n], b.buf[b.idx:])
-	}
-
-	// grow buffer if necessary
-	// TODO: let the buffer shrink again at some point
-	//       Maybe keep the org buf slice and swap back?
-	if need > len(b.buf) {
-		// Round up to the next multiple of the default size
-		newBuf := make([]byte, ((need/defaultBufSize)+1)*defaultBufSize)
-		copy(newBuf, b.buf)
-		b.buf = newBuf
-	}
-
-	b.idx = 0
-
-	for {
-		if b.timeout > 0 {
-			if err := b.nc.SetReadDeadline(time.Now().Add(b.timeout)); err != nil {
-				return err
-			}
-		}
-
-		nn, err := b.nc.Read(b.buf[n:])
-		n += nn
-
-		switch err {
-		case nil:
-			if n < need {
-				continue
-			}
-			b.length = n
-			return nil
-
-		case io.EOF:
-			if n >= need {
-				b.length = n
-				return nil
-			}
-			return io.ErrUnexpectedEOF
-
-		default:
-			return err
-		}
-	}
-}
-
-// returns next N bytes from buffer.
-// The returned slice is only guaranteed to be valid until the next read
-func (b *buffer) readNext(need int) ([]byte, error) {
-	if b.length < need {
-		// refill
-		if err := b.fill(need); err != nil {
-			return nil, err
-		}
-	}
-
-	offset := b.idx
-	b.idx += need
-	b.length -= need
-	return b.buf[offset:b.idx], nil
-}
-
-// returns a buffer with the requested size.
-// If possible, a slice from the existing buffer is returned.
-// Otherwise a bigger buffer is made.
-// Only one buffer (total) can be used at a time.
-func (b *buffer) takeBuffer(length int) []byte {
-	if b.length > 0 {
-		return nil
-	}
-
-	// test (cheap) general case first
-	if length <= defaultBufSize || length <= cap(b.buf) {
-		return b.buf[:length]
-	}
-
-	if length < maxPacketSize {
-		b.buf = make([]byte, length)
-		return b.buf
-	}
-	return make([]byte, length)
-}
-
-// shortcut which can be used if the requested buffer is guaranteed to be
-// smaller than defaultBufSize
-// Only one buffer (total) can be used at a time.
-func (b *buffer) takeSmallBuffer(length int) []byte {
-	if b.length > 0 {
-		return nil
-	}
-	return b.buf[:length]
-}
-
-// takeCompleteBuffer returns the complete existing buffer.
-// This can be used if the necessary buffer size is unknown.
-// Only one buffer (total) can be used at a time.
-func (b *buffer) takeCompleteBuffer() []byte {
-	if b.length > 0 {
-		return nil
-	}
-	return b.buf
-}
-- 
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