Fix the multiupload property

example/object/MutiUpload.go

@@ -2,10 +2,10 @@ package main
 
 import (
 	"context"
+	"net/http"
 	"net/url"
 	"os"
 	"time"
-	"net/http"
 
 	"fmt"
 	"github.com/tencentyun/cos-go-sdk-v5"
@@ -13,14 +13,14 @@ import (
 )
 
 func main() {
-	u, _ := url.Parse("http://tencentyun02-1252448703.cos.ap-guangzhou.myqcloud.com")
+	u, _ := url.Parse("http://alanbj-1251668577.cos.ap-beijing.myqcloud.com")
 	b := &cos.BaseURL{BucketURL: u}
 	c := cos.NewClient(b, &http.Client{
 		//设置超时时间
 		Timeout: 100 * time.Second,
 		Transport: &cos.AuthorizationTransport{
-			SecretID:  os.Getenv("COS_Key"),
-			SecretKey: os.Getenv("COS_Secret"),
+			SecretID:  os.Getenv("COS_SECRETID"),
+			SecretKey: os.Getenv("COS_SECRETKEY"),
 			Transport: &debug.DebugRequestTransport{
 				RequestHeader:  false,
 				RequestBody:    false,
@@ -29,15 +29,16 @@ func main() {
 			},
 		},
 	})
-	f,err:=os.Open("E:/cos-php-sdk.zip")
-	if err!=nil {panic(err)}
+
 	opt := &cos.MultiUploadOptions{
 		OptIni:   nil,
 		PartSize: 1,
 	}
 	v, _, err := c.Object.MultiUpload(
-		context.Background(), "test", f, opt,
+		context.Background(), "test/gomulput1G", "./test1G", opt,
 	)
-	if err!=nil {panic(err)}
+	if err != nil {
+		panic(err)
+	}
 	fmt.Println(v)
 }

object.go

@@ -9,7 +9,7 @@ import (
 	"net/http"
 	"net/url"
 	"os"
-	"strings"
+	"sort"
 	"time"
 )
 
@@ -421,9 +421,114 @@ type Object struct {
 	Owner        *Owner `xml:",omitempty"`
 }
 
+// MultiUploadOptions is the option of the multiupload,
+// ThreadPoolSize default is one
 type MultiUploadOptions struct {
 	OptIni         *InitiateMultipartUploadOptions
-	PartSize int
+	PartSize       int64
+	ThreadPoolSize int
+}
+
+type Chunk struct {
+	Number int
+	OffSet int64
+	Size   int64
+}
+
+// jobs
+type Jobs struct {
+	Name       string
+	UploadId   string
+	FilePath   string
+	RetryTimes int
+	Chunk      Chunk
+	Data       io.Reader
+	Opt        *ObjectUploadPartOptions
+}
+
+type Results struct {
+	PartNumber int
+	Resp       *Response
+}
+
+func worker(s *ObjectService, jobs <-chan *Jobs, results chan<- *Results) {
+	for j := range jobs {
+		fd, err := os.Open(j.FilePath)
+		var res Results
+		if err != nil {
+			res.PartNumber = j.Chunk.Number
+			res.Resp = nil
+			results <- &res
+		}
+
+		fd.Seek(j.Chunk.OffSet, os.SEEK_SET)
+		// UploadPart do not support the chunk trsf, so need to add the content-length
+		opt := &ObjectUploadPartOptions{
+			ContentLength: int(j.Chunk.Size),
+		}
+
+		rt := j.RetryTimes
+		for {
+			resp, err := s.UploadPart(context.Background(), j.Name, j.UploadId, j.Chunk.Number,
+				&io.LimitedReader{R: fd, N: j.Chunk.Size}, opt)
+			res.PartNumber = j.Chunk.Number
+			res.Resp = resp
+			if err != nil {
+				rt--
+				if rt == 0 {
+					fd.Close()
+					results <- &res
+					break
+				}
+				continue
+			}
+			fd.Close()
+			results <- &res
+			break
+		}
+	}
+}
+
+func SplitFileIntoChunks(filePath string, partSize int64) ([]Chunk, int, error) {
+	if filePath == "" || partSize <= 0 {
+		return nil, 0, errors.New("chunkSize invalid")
+	}
+
+	file, err := os.Open(filePath)
+	if err != nil {
+		return nil, 0, err
+	}
+	defer file.Close()
+
+	stat, err := file.Stat()
+	if err != nil {
+		return nil, 0, err
+	}
+	var partNum = stat.Size() / partSize
+	// 10000 max part size
+	if partNum >= 10000 {
+		return nil, 0, errors.New("Too many parts, out of 10000")
+	}
+
+	var chunks []Chunk
+	var chunk = Chunk{}
+	for i := int64(0); i < partNum; i++ {
+		chunk.Number = int(i + 1)
+		chunk.OffSet = i * partSize
+		chunk.Size = partSize
+		chunks = append(chunks, chunk)
+	}
+
+	if stat.Size()%partSize > 0 {
+		chunk.Number = len(chunks) + 1
+		chunk.OffSet = int64(len(chunks)) * partSize
+		chunk.Size = stat.Size() % partSize
+		chunks = append(chunks, chunk)
+		partNum++
+	}
+
+	return chunks, int(partNum), nil
+
 }
 
 // MultiUpload 为高级upload接口，并发分块上传
@@ -433,59 +538,66 @@ type MultiUploadOptions struct {
 // 同时请确认分块数量不超过10000
 //
 
-func (s *ObjectService) MultiUpload(ctx context.Context, name string, r io.Reader, opt *MultiUploadOptions) (*CompleteMultipartUploadResult, *Response, error) {
+func (s *ObjectService) MultiUpload(ctx context.Context, name string, filepath string, opt *MultiUploadOptions) (*CompleteMultipartUploadResult, *Response, error) {
+	// 1.Get the file chunk
+	bufSize := opt.PartSize * 1024 * 1024
+	chunks, partNum, err := SplitFileIntoChunks(filepath, bufSize)
+	if err != nil {
+		return nil, nil, err
+	}
 
+	// 2.Init
 	optini := opt.OptIni
 	res, _, err := s.InitiateMultipartUpload(ctx, name, optini)
 	if err != nil {
 		return nil, nil, err
 	}
 	uploadID := res.UploadID
-	bufSize := opt.PartSize * 1024 * 1024
-	buffer := make([]byte, bufSize)
-	optcom := &CompleteMultipartUploadOptions{}
+	var poolSize int
+	if opt.ThreadPoolSize > 0 {
+		poolSize = opt.ThreadPoolSize
+	} else {
+		// Default is one
+		poolSize = 1
+	}
 
-	PartUpload := func(ch chan *Response, ctx context.Context, name string, uploadId string, partNumber int, data io.Reader, opt *ObjectUploadPartOptions) {
+	chjobs := make(chan *Jobs, 100)
+	chresults := make(chan *Results, 10000)
+	optcom := &CompleteMultipartUploadOptions{}
 
-		defer func() {
-			if err := recover(); err != nil {
-				fmt.Println(err)
-			}
-		}()
-		resp, _ := s.UploadPart(context.Background(), name, uploadId, partNumber, data, nil)
-		ch <- resp
+	// 3.Start worker
+	for w := 1; w <= poolSize; w++ {
+		go worker(s, chjobs, chresults)
 	}
 
-	chs := make([]chan *Response, 10000)
-	PartNumber := 0
-	for i := 1; true; i++ {
-		bytesread, err := r.Read(buffer)
-		if err != nil {
-			if err != io.EOF {
-				return nil, nil, err
+	// 4.Push jobs
+	for _, chunk := range chunks {
+		job := &Jobs{
+			Name:       name,
+			RetryTimes: 3,
+			FilePath:   filepath,
+			UploadId:   uploadID,
+			Chunk:      chunk,
 		}
-			// If read fail also need to create i index respon in chan,
-			// in case below out of index to panic.
-			chs[i] = make(chan *Response)
-			PartNumber = i
-			break
-		}
-		chs[i] = make(chan *Response)
-		go PartUpload(chs[i], context.Background(), name, uploadID, i, strings.NewReader(string(buffer[:bytesread])), nil)
+		chjobs <- job
 	}
+	close(chjobs)
 
-	for i := 1; i < PartNumber; i++ {
-		resp := <-chs[i]
+	// 5.Recv the resp etag to complete
+	for i := 1; i <= partNum; i++ {
+		res := <-chresults
 		// Notice one part fail can not get the etag according.
-		if resp == nil {
+		if res.Resp == nil {
 			// Some part already fail, can not to get the header inside.
-			return nil, nil, fmt.Errorf("UploadID %s, part %d failed to get resp content.", uploadID, i)
+			return nil, nil, fmt.Errorf("UploadID %s, part %d failed to get resp content.", uploadID, res.PartNumber)
 		}
-		etag := resp.Header.Get("ETag")
+		// Notice one part fail can not get the etag according.
+		etag := res.Resp.Header.Get("ETag")
 		optcom.Parts = append(optcom.Parts, Object{
-			PartNumber: i, ETag: etag},
+			PartNumber: res.PartNumber, ETag: etag},
 		)
 	}
+	sort.Sort(ObjectList(optcom.Parts))
 
 	v, resp, err := s.CompleteMultipartUpload(context.Background(), name, uploadID, optcom)