1 template<typename T,int gs,int os>
2 class Allocator
3 {
4 T * malloc();
5 void free(void * p);
6
7 MemoryGroup * grouplist;
8 };
緇勬槸鍐呭瓨鍒嗛厤鍣ㄧ殑鍐呴儴綾伙紝緇勬墠鐪熸璋冪敤緋葷粺malloc鍒嗛厤鏁村潡鍐呭瓨錛屾寜綾繪暟鍒嗙粰瀵硅薄鍐呭瓨錛坢emoryobject錛夋暟緇勫垎鍒繚瀛樺湴鍧銆?br>
2 class Allocator
3 {
4 T * malloc();
5 void free(void * p);
6
7 MemoryGroup * grouplist;
8 };
1 struct MemoryObject
2 {
3 T * p;
4 MemoryObject * next;
5 };
6 struct MemoryGroup
7 {
8 MemoryObject * freelist;
9 MemoryObject objlist[cs];
10 MemoryGroup * next;
11 };
緇勭淮鎶や竴涓┖闂插璞″唴瀛橀摼琛ㄤ篃鏄崟鍚戦摼琛紝褰撳唴瀛樺垎閰嶅櫒闇瑕佸湴鍧鐨勬椂鍊欙紝緇勫氨鎶婄┖闂查摼琛ㄤ腑鐨勪竴涓璞″唴瀛樿繑鍥烇紝騫舵妸瀹冧粠閾捐〃涓垹闄ゃ傚綋鍐呭瓨鍒嗛厤鍣ㄨ閲婃斁瀵硅薄鐨勬椂鍊欙紝瀵硅薄鎸囬拡浼犻掔粰緇勶紝緇勮繘琛屾晥楠屾槸鍚︾敱璇ョ粍鍒嗛厤錛屽鏋滄槸灝辯畝鍗曠殑鎵懼埌瀵瑰簲瀵硅薄鍐呭瓨錛屾坊鍔犲埌絀洪棽閾捐〃銆?br> 澶栭儴浣跨敤鐨勫唴瀛樼鐞嗙被鍖呰鍐呭瓨鍒嗛厤鍣紝瀹炵幇浜唌alloc鍜宖ree鐩存帴璋冪敤鍐呭瓨鍒嗛厤鍣ㄧ殑錛岃繕鏈塶ew鍜宒elete鍑芥暟鏄湪鍙栧緱鍦板潃鍚庤皟鐢ㄦ瀯閫犲拰璋冪敤鏋愭瀯鍚庡啀浼犻掓寚閽堛備負(fù)浜嗗畨鍏ㄨ搗瑙侊紝鐢ㄧ壒渚嬪寲鎶妌ew鍜宒elete涓巑alloc鍜宖ree鍒嗙寮錛屼竴涓疄渚嬪寲鐨勬ā鏉跨被鍙兘璋冪敤鍏朵腑涓瀵瑰嚱鏁般?nbsp;
2 {
3 T * p;
4 MemoryObject * next;
5 };
6 struct MemoryGroup
7 {
8 MemoryObject * freelist;
9 MemoryObject objlist[cs];
10 MemoryGroup * next;
11 };
1 template<class T,int gs,int cs,bool nc,bool ar>
2 class MemoryManager
3 {
4 T * malloc();
5 void free(void * p);
6 };
7
8 template<class T,int gs,int cs,bool nc,bool ar>
9 class MemoryManager<T,gs,cs,true,ar>
10 {
11 T * new();
12 void delete(void * p);
13 };
妯℃澘鍙傛暟鐨勭4涓弬鏁幫紙needconstruct錛夐夋嫨浣跨敤鍝竴瀵瑰嚱鏁幫紝絎?涓弬鏁幫紙autorecycle錛夊喅瀹氳涓嶈鍦ㄧ粍瀹屽叏鏈嬌鐢ㄦ椂鍥炴敹緇勩傚綋鐒跺洖鏀剁粍鏄彲浠ュ姩鎬佹敼鍙樼殑涓涓夋嫨錛屾墍浠ョ5涓弬鏁板彲浠ラ氳繃鍑芥暟鍙傛暟浼犲叆銆傚洖鏀剁粍鍙互鍦ㄥ唴瀛樺垎閰嶅櫒鏄惁瀵硅薄鏃舵嫻嬬粍鐨勪嬌鐢ㄦ儏鍐碉紝涓轟簡璺熻釜浣跨敤鎯呭喌鍙互鍦ㄧ粍鍐呴儴闄勫姞涓涓鏁板櫒緇熻鏈嬌鐢ㄥ璞℃暟閲忥紝鍒濆鏄瀹氱殑瀵硅薄鏁幫紝浣跨敤鏃跺噺1鍥炴敹鏃跺姞1錛岃繖涓鏁板櫒鍦ㄤ互鍚庤繕鍙互璁℃暟浣跨敤鐜囩瓑錛屼綔涓鴻皟璇曞拰嫻嬭瘯淇℃伅杈撳嚭銆?br> 涓轟簡浣跨敤鐨勫畨鍏ㄨ搗瑙侊紝鐢ㄥ畯閲婃斁瀵硅薄鎸囬拡鍚屾椂鎶婂璞℃寚閽堣祴鍊間負(fù)0錛屽洜涓轟嬌鐢ㄤ簡鍐呭瓨綆＄悊鍣ㄦ墍浠ヤ笌涓鑸殑閲婃斁瀹忎笉鍚岄渶瑕佷紶鍏ュ唴瀛樼鐞嗐?br>
2 class MemoryManager
3 {
4 T * malloc();
5 void free(void * p);
6 };
7
8 template<class T,int gs,int cs,bool nc,bool ar>
9 class MemoryManager<T,gs,cs,true,ar>
10 {
11 T * new();
12 void delete(void * p);
13 };
1 #define FREE(m,p) { if (p) { m.free(p); p=0; } }
2 #define DELETE(m,p) { if (p) { m.delete(p); p=0; } }
鍩烘湰涓婂氨鏄繖涔堝鍟︼紝鍏跺疄涔熶笉鏄粦澶嶆潅鐨勪笢瑗褲?br>2 #define DELETE(m,p) { if (p) { m.delete(p); p=0; } }
鍚庨潰璁插搱鍐呭瓨浣跨敤鐨勪笉鍚屾儏鍐碉紝緇勬暟閲忓拰瀵硅薄鏁伴噺璁懼畾鐨勪竴鐐規(guī)兂娉曘?
]]>