Support concurrency add picture

11 files changed, 64 insertions, 6 deletions

diff --git a/calcchain.go b/calcchain.go
index 1b99a04..671d144 100644
--- a/calcchain.go
+++ b/calcchain.go
@@ -56,6 +56,8 @@ func (f *File) deleteCalcChain(index int, axis string) {
 		f.CalcChain = nil
 		f.Pkg.Delete("xl/calcChain.xml")
 		content := f.contentTypesReader()
+		content.Lock()
+		defer content.Unlock()
 		for k, v := range content.Overrides {
 			if v.PartName == "/xl/calcChain.xml" {
 				content.Overrides = append(content.Overrides[:k], content.Overrides[k+1:]...)
diff --git a/cell_test.go b/cell_test.go
index e289983..91f4804 100644
--- a/cell_test.go
+++ b/cell_test.go
@@ -10,6 +10,8 @@ import (
 	"testing"
 	"time"
 
+	_ "image/jpeg"
+
 	"github.com/stretchr/testify/assert"
 )
 
@@ -25,6 +27,9 @@ func TestConcurrency(t *testing.T) {
 			assert.NoError(t, f.SetCellValue("Sheet1", fmt.Sprintf("B%d", val), strconv.Itoa(val)))
 			_, err := f.GetCellValue("Sheet1", fmt.Sprintf("A%d", val))
 			assert.NoError(t, err)
+			// Concurrency add picture
+			assert.NoError(t, f.AddPicture("Sheet1", "F21", filepath.Join("test", "images", "excel.jpg"),
+				`{"x_offset": 10, "y_offset": 10, "hyperlink": "https://github.com/360EntSecGroup-Skylar/excelize", "hyperlink_type": "External", "positioning": "oneCell"}`))
 			// Concurrency get cell picture
 			name, raw, err := f.GetPicture("Sheet1", "A1")
 			assert.Equal(t, "", name)
diff --git a/comment.go b/comment.go
index 306826d..a89d2bb 100644
--- a/comment.go
+++ b/comment.go
@@ -76,6 +76,8 @@ func (f *File) GetComments() (comments map[string][]Comment) {
 func (f *File) getSheetComments(sheetFile string) string {
 	var rels = "xl/worksheets/_rels/" + sheetFile + ".rels"
 	if sheetRels := f.relsReader(rels); sheetRels != nil {
+		sheetRels.Lock()
+		defer sheetRels.Unlock()
 		for _, v := range sheetRels.Relationships {
 			if v.Type == SourceRelationshipComments {
 				return v.Target
diff --git a/drawing.go b/drawing.go
index 181bb43..86d5ca6 100644
--- a/drawing.go
+++ b/drawing.go
@@ -1173,8 +1173,13 @@ func (f *File) drawingParser(path string) (*xlsxWsDr, int) {
 		}
 		f.Drawings.Store(path, &content)
 	}
-	wsDr, _ := f.Drawings.Load(path)
-	return wsDr.(*xlsxWsDr), len(wsDr.(*xlsxWsDr).OneCellAnchor) + len(wsDr.(*xlsxWsDr).TwoCellAnchor) + 2
+	var wsDr *xlsxWsDr
+	if drawing, ok := f.Drawings.Load(path); ok && drawing != nil {
+		wsDr = drawing.(*xlsxWsDr)
+	}
+	wsDr.Lock()
+	defer wsDr.Unlock()
+	return wsDr, len(wsDr.OneCellAnchor) + len(wsDr.TwoCellAnchor) + 2
 }
 
 // addDrawingChart provides a function to add chart graphic frame by given
diff --git a/excelize.go b/excelize.go
index bdb7120..0091c82 100644
--- a/excelize.go
+++ b/excelize.go
@@ -43,7 +43,7 @@ type File struct {
 	Path             string
 	SharedStrings    *xlsxSST
 	sharedStringsMap map[string]int
-	Sheet            sync.Map // map[string]*xlsxWorksheet
+	Sheet            sync.Map
 	SheetCount       int
 	Styles           *xlsxStyleSheet
 	Theme            *xlsxTheme
@@ -257,6 +257,8 @@ func (f *File) addRels(relPath, relType, target, targetMode string) int {
 	if rels == nil {
 		rels = &xlsxRelationships{}
 	}
+	rels.Lock()
+	defer rels.Unlock()
 	var rID int
 	for idx, rel := range rels.Relationships {
 		ID, _ := strconv.Atoi(strings.TrimPrefix(rel.ID, "rId"))
@@ -357,6 +359,8 @@ func (f *File) AddVBAProject(bin string) error {
 	}
 	f.setContentTypePartVBAProjectExtensions()
 	wb := f.relsReader(f.getWorkbookRelsPath())
+	wb.Lock()
+	defer wb.Unlock()
 	var rID int
 	var ok bool
 	for _, rel := range wb.Relationships {
@@ -387,6 +391,8 @@ func (f *File) AddVBAProject(bin string) error {
 func (f *File) setContentTypePartVBAProjectExtensions() {
 	var ok bool
 	content := f.contentTypesReader()
+	content.Lock()
+	defer content.Unlock()
 	for _, v := range content.Defaults {
 		if v.Extension == "bin" {
 			ok = true
diff --git a/picture.go b/picture.go
index 58fa909..e524224 100644
--- a/picture.go
+++ b/picture.go
@@ -184,6 +184,8 @@ func (f *File) deleteSheetRelationships(sheet, rID string) {
 	if sheetRels == nil {
 		sheetRels = &xlsxRelationships{}
 	}
+	sheetRels.Lock()
+	defer sheetRels.Unlock()
 	for k, v := range sheetRels.Relationships {
 		if v.ID == rID {
 			sheetRels.Relationships = append(sheetRels.Relationships[:k], sheetRels.Relationships[k+1:]...)
@@ -297,6 +299,8 @@ func (f *File) addDrawingPicture(sheet, drawingXML, cell, file string, width, he
 		FLocksWithSheet:  formatSet.FLocksWithSheet,
 		FPrintsWithSheet: formatSet.FPrintsWithSheet,
 	}
+	content.Lock()
+	defer content.Unlock()
 	content.TwoCellAnchor = append(content.TwoCellAnchor, &twoCellAnchor)
 	f.Drawings.Store(drawingXML, content)
 	return err
@@ -344,6 +348,8 @@ func (f *File) addMedia(file []byte, ext string) string {
 func (f *File) setContentTypePartImageExtensions() {
 	var imageTypes = map[string]bool{"jpeg": false, "png": false, "gif": false, "tiff": false}
 	content := f.contentTypesReader()
+	content.Lock()
+	defer content.Unlock()
 	for _, v := range content.Defaults {
 		_, ok := imageTypes[v.Extension]
 		if ok {
@@ -365,6 +371,8 @@ func (f *File) setContentTypePartImageExtensions() {
 func (f *File) setContentTypePartVMLExtensions() {
 	vml := false
 	content := f.contentTypesReader()
+	content.Lock()
+	defer content.Unlock()
 	for _, v := range content.Defaults {
 		if v.Extension == "vml" {
 			vml = true
@@ -410,6 +418,8 @@ func (f *File) addContentTypePart(index int, contentType string) {
 		s()
 	}
 	content := f.contentTypesReader()
+	content.Lock()
+	defer content.Unlock()
 	for _, v := range content.Overrides {
 		if v.PartName == partNames[contentType] {
 			return
@@ -434,6 +444,8 @@ func (f *File) getSheetRelationshipsTargetByID(sheet, rID string) string {
 	if sheetRels == nil {
 		sheetRels = &xlsxRelationships{}
 	}
+	sheetRels.Lock()
+	defer sheetRels.Unlock()
 	for _, v := range sheetRels.Relationships {
 		if v.ID == rID {
 			return v.Target
@@ -560,6 +572,8 @@ func (f *File) getPictureFromWsDr(row, col int, drawingRelationships string, wsD
 		anchor  *xdrCellAnchor
 		drawRel *xlsxRelationship
 	)
+	wsDr.Lock()
+	defer wsDr.Unlock()
 	for _, anchor = range wsDr.TwoCellAnchor {
 		if anchor.From != nil && anchor.Pic != nil {
 			if anchor.From.Col == col && anchor.From.Row == row {
@@ -584,6 +598,8 @@ func (f *File) getPictureFromWsDr(row, col int, drawingRelationships string, wsD
 // relationship ID.
 func (f *File) getDrawingRelationships(rels, rID string) *xlsxRelationship {
 	if drawingRels := f.relsReader(rels); drawingRels != nil {
+		drawingRels.Lock()
+		defer drawingRels.Unlock()
 		for _, v := range drawingRels.Relationships {
 			if v.ID == rID {
 				return &v
diff --git a/rows.go b/rows.go
index 229b12d..a40f4a9 100644
--- a/rows.go
+++ b/rows.go
@@ -272,6 +272,8 @@ func (f *File) SetRowHeight(sheet string, row int, height float64) error {
 // name and row number.
 func (f *File) getRowHeight(sheet string, row int) int {
 	ws, _ := f.workSheetReader(sheet)
+	ws.Lock()
+	defer ws.Unlock()
 	for i := range ws.SheetData.Row {
 		v := &ws.SheetData.Row[i]
 		if v.R == row && v.Ht != 0 {
diff --git a/sheet.go b/sheet.go
index 2b91495..3a55540 100644
--- a/sheet.go
+++ b/sheet.go
@@ -93,6 +93,8 @@ func (f *File) contentTypesWriter() {
 // the spreadsheet.
 func (f *File) getWorkbookPath() (path string) {
 	if rels := f.relsReader("_rels/.rels"); rels != nil {
+		rels.Lock()
+		defer rels.Unlock()
 		for _, rel := range rels.Relationships {
 			if rel.Type == SourceRelationshipOfficeDocument {
 				path = strings.TrimPrefix(rel.Target, "/")
@@ -198,6 +200,8 @@ func trimCell(column []xlsxC) []xlsxC {
 // type of the spreadsheet.
 func (f *File) setContentTypes(partName, contentType string) {
 	content := f.contentTypesReader()
+	content.Lock()
+	defer content.Unlock()
 	content.Overrides = append(content.Overrides, xlsxOverride{
 		PartName:    partName,
 		ContentType: contentType,
@@ -540,6 +544,8 @@ func (f *File) DeleteSheet(name string) {
 // relationships by given relationships ID in the file workbook.xml.rels.
 func (f *File) deleteSheetFromWorkbookRels(rID string) string {
 	content := f.relsReader(f.getWorkbookRelsPath())
+	content.Lock()
+	defer content.Unlock()
 	for k, v := range content.Relationships {
 		if v.ID == rID {
 			content.Relationships = append(content.Relationships[:k], content.Relationships[k+1:]...)
@@ -556,6 +562,8 @@ func (f *File) deleteSheetFromContentTypes(target string) {
 		target = "/xl/" + target
 	}
 	content := f.contentTypesReader()
+	content.Lock()
+	defer content.Unlock()
 	for k, v := range content.Overrides {
 		if v.PartName == target {
 			content.Overrides = append(content.Overrides[:k], content.Overrides[k+1:]...)
diff --git a/xmlContentTypes.go b/xmlContentTypes.go
index f429ef6..6b6db63 100644
--- a/xmlContentTypes.go
+++ b/xmlContentTypes.go
@@ -11,12 +11,16 @@
 
 package excelize
 
-import "encoding/xml"
+import (
+	"encoding/xml"
+	"sync"
+)
 
 // xlsxTypes directly maps the types element of content types for relationship
 // parts, it takes a Multipurpose Internet Mail Extension (MIME) media type as a
 // value.
 type xlsxTypes struct {
+	sync.Mutex
 	XMLName   xml.Name       `xml:"http://schemas.openxmlformats.org/package/2006/content-types Types"`
 	Overrides []xlsxOverride `xml:"Override"`
 	Defaults  []xlsxDefault  `xml:"Default"`
diff --git a/xmlDrawing.go b/xmlDrawing.go
index 4b51b63..4e35fcf 100644
--- a/xmlDrawing.go
+++ b/xmlDrawing.go
@@ -11,7 +11,10 @@
 
 package excelize
 
-import "encoding/xml"
+import (
+	"encoding/xml"
+	"sync"
+)
 
 // Source relationship and namespace list, associated prefixes and schema in which it was
 // introduced.
@@ -303,6 +306,7 @@ type xlsxPoint2D struct {
 // xlsxWsDr directly maps the root element for a part of this content type shall
 // wsDr.
 type xlsxWsDr struct {
+	sync.Mutex
 	XMLName        xml.Name         `xml:"xdr:wsDr"`
 	AbsoluteAnchor []*xdrCellAnchor `xml:"xdr:absoluteAnchor"`
 	OneCellAnchor  []*xdrCellAnchor `xml:"xdr:oneCellAnchor"`
diff --git a/xmlWorkbook.go b/xmlWorkbook.go
index 7151c6f..0e8839b 100644
--- a/xmlWorkbook.go
+++ b/xmlWorkbook.go
@@ -11,10 +11,14 @@
 
 package excelize
 
-import "encoding/xml"
+import (
+	"encoding/xml"
+	"sync"
+)
 
 // xlsxRelationships describe references from parts to other internal resources in the package or to external resources.
 type xlsxRelationships struct {
+	sync.Mutex
 	XMLName       xml.Name           `xml:"http://schemas.openxmlformats.org/package/2006/relationships Relationships"`
 	Relationships []xlsxRelationship `xml:"Relationship"`
 }