golang多協程安全ArrayListConcurrent（源代碼）

為了方便對比，單協程中使用ArrayList和多協程中ArrayListConcurrent放在一起。

package code
import "sync"
type Array interface {
 Ini();
 Add(interface{}) bool;
 Contains(interface{}) int;
 Size() int;
 Get(int) interface{};
 Remove(int) interface{};
 RemoveO(interface{}) bool;
}
type ArrayList struct {
 Data []interface{};
}
func (this *ArrayList)Ini() {
 this.Data=make([]interface{},0);
}
func (this *ArrayList) Add (i interface{}) bool {
 this.Data=append(this.Data, i);
 return true;
}
//判斷是否保存對象 -1 表示沒有對象
func (this *ArrayList) Contains(i interface{}) int {
 var r int =-1;
 out:for k,v:=range this.Data {
 if(v==i){
 r=k;
 break out;
 }
 }
 return r;
}
func (this *ArrayList) Size() int {
 return len(this.Data);
}
func (this *ArrayList) Get(index int) interface{} {
 var r interface{}=nil;
 if(index>=0 && index r=this.Data[index];
 }
 return r;
}
//索引刪除
func (this *ArrayList) Remove(index int) interface{} {
 var r interface{}=nil;
 if(index>=0 && index if(index==0) {
 r=this.Data[index];
 this.Data = this.Data[1:len(this.Data)]
 }else if(index==(len(this.Data)-1)){
 r=this.Data[index];
 this.Data = this.Data[0:len(this.Data)-1]
 }else {
 r=this.Data[index];
 this.Data=append(this.Data[0:index],this.Data[index+1:len(this.Data)]...);
 }
 }
 return r;
}
//對象刪除
func (this *ArrayList) RemoveO(i interface{}) bool {
 var r int=-1;
 out:for k,v:=range this.Data {
 if(v==i){
 r=k;
 break out;
 }
 }
 if(r>=0) {
 this.Remove(r);
 return true;
 }else {
 return false;
 }
}






//併發對象
type ArrayListConcurrent struct {
 Data []interface{};
 lock *sync.Mutex
}
func (this *ArrayListConcurrent)Ini() {
 this.Data=make([]interface{},0);
 this.lock=new(sync.Mutex);
}
func (this *ArrayListConcurrent) Add (i interface{}) bool {
 this.lock.Lock();
 this.Data=append(this.Data, i);
 this.lock.Unlock();
 return true;
}
//判斷是否保存對象 -1 表示沒有對象
func (this *ArrayListConcurrent) Contains(i interface{}) int {
 var r int =-1;
 this.lock.Lock();
 out:for k,v:=range this.Data {
 if(v==i){
 r=k;
 break out;
 }
 }
 this.lock.Unlock();
 return r;
}
func (this *ArrayListConcurrent) Size() int {
 return len(this.Data);
}
func (this *ArrayListConcurrent) Get(index int) interface{} {
 var r interface{}=nil;
 this.lock.Lock();
 if(index>=0 && index r=this.Data[index];
 }
 this.lock.Unlock();
 return r;
}
//索引刪除
func (this *ArrayListConcurrent) Remove(index int) interface{} {
 var r interface{}=nil;
 if(index>=0 && index this.lock.Lock();
 if(index==0) {
 r=this.Data[index];
 this.Data = this.Data[1:len(this.Data)]
 }else if(index==(len(this.Data)-1)){
 r=this.Data[index];
 this.Data = this.Data[0:len(this.Data)-1]
 }else {
 r=this.Data[index];
 this.Data=append(this.Data[0:index],this.Data[index+1:len(this.Data)]...);
 }
 this.lock.Unlock();
 }
 return r;
}
//對象刪除
func (this *ArrayListConcurrent) RemoveO(i interface{}) bool {
 var b bool=false;
 this.lock.Lock();
 var index int=-1;
 out:for k,v:=range this.Data {
 if(v==i){
 index=k;
 break out;
 }
 }
 if(index>=0) {
 if(index==0) {
 this.Data = this.Data[1:len(this.Data)]
 }else if(index==(len(this.Data)-1)){
 this.Data = this.Data[0:len(this.Data)-1]
 }else {
 this.Data=append(this.Data[0:index],this.Data[index+1:len(this.Data)]...);
 }
 b=true;
 }
 this.lock.Unlock()
 return b;
}