Add support for nested datatables. (bug 5446, r=asherkin)

core/HalfLife2.cpp

@@ -115,7 +115,7 @@ CHalfLife2::~CHalfLife2()
 	{
 		if (h_iter->val.trie)
 		{
-			sm_trie_destroy(h_iter->val.trie);
+			delete h_iter->val.trie;
 			h_iter->val.trie = NULL;
 		}
 	}
@@ -343,16 +343,11 @@ bool UTIL_FindInSendTable(SendTable *pTable,
 	return false;
 }
 
-typedescription_t *UTIL_FindInDataMap(datamap_t *pMap, const char *name, bool *isNested)
+bool UTIL_FindDataMapInfo(datamap_t *pMap, const char *name, sm_datatable_info_t *pDataTable)
 {
-	if (isNested)
-	{
-		*isNested = false;
-	}
-	
 	while (pMap)
 	{
-		for (int i=0; i<pMap->dataNumFields; i++)
+		for (int i = 0; i < pMap->dataNumFields; ++i)
 		{
 			if (pMap->dataDesc[i].fieldName == NULL)
 			{
@@ -360,32 +355,23 @@ typedescription_t *UTIL_FindInDataMap(datamap_t *pMap, const char *name, bool *i
 			}
 			if (strcmp(name, pMap->dataDesc[i].fieldName) == 0)
 			{
-				return &(pMap->dataDesc[i]);
+				pDataTable->prop = &(pMap->dataDesc[i]);
+				pDataTable->actual_offset = GetTypeDescOffs(pDataTable->prop);
+				return true;
 			}
-			if (pMap->dataDesc[i].td)
+			if (pMap->dataDesc[i].td == NULL || !UTIL_FindDataMapInfo(pMap->dataDesc[i].td, name, pDataTable))
 			{
-				if (isNested)
+				continue;
-				{
-					*isNested = (UTIL_FindInDataMap(pMap->dataDesc[i].td, name, NULL) != NULL);
-					if (*isNested)
-					{
-						return NULL;
-					} else {
-						continue;
-					}
-				} else { // Use the old behaviour, we dont want to spring this on extensions - even if they're doing bad things.
-					typedescription_t *_td;
-					if ((_td=UTIL_FindInDataMap(pMap->dataDesc[i].td, name, NULL)) != NULL)
-					{
-						return _td;
-					}
-				}
 			}
+			
+			pDataTable->actual_offset += GetTypeDescOffs(&(pMap->dataDesc[i]));
+			return true;
 		}
+		
 		pMap = pMap->baseMap;
 	}
 
-	return NULL; 
+	return false; 
 }
 
 ServerClass *CHalfLife2::FindServerClass(const char *classname)
@@ -472,27 +458,44 @@ SendProp *CHalfLife2::FindInSendTable(const char *classname, const char *offset)
 
 typedescription_t *CHalfLife2::FindInDataMap(datamap_t *pMap, const char *offset)
 {
-	return this->FindInDataMap(pMap, offset, NULL);
+	sm_datatable_info_t dt_info;
+	
+	if (!(this->FindDataMapInfo(pMap, offset, &dt_info)))
+	{
+		return NULL;
+	}
+	
+	return dt_info.prop;
 }
 
-typedescription_t *CHalfLife2::FindInDataMap(datamap_t *pMap, const char *offset, bool *isNested)
+bool CHalfLife2::FindDataMapInfo(datamap_t *pMap, const char *offset, sm_datatable_info_t *pDataTable)
 {
-	typedescription_t *td = NULL;
 	DataMapTrie &val = m_Maps[pMap];
 
 	if (!val.trie)
 	{
-		val.trie = sm_trie_create();
+		val.trie = new KTrie<sm_datatable_info_t>;
 	}
-	if (!sm_trie_retrieve(val.trie, offset, (void **)&td))
+	
+	sm_datatable_info_t * pNewTable = val.trie->retrieve(offset);
+	
+	if (!pNewTable)
 	{
-		if ((td = UTIL_FindInDataMap(pMap, offset, isNested)) != NULL)
+		if (UTIL_FindDataMapInfo(pMap, offset, pDataTable))
 		{
-			sm_trie_insert(val.trie, offset, td);
+			val.trie->insert(offset, *pDataTable);
+		}
+		else
+		{
+			pDataTable->prop = NULL;
 		}
 	}
+	else
+	{
+		*pDataTable = *pNewTable;
+	}
 
-	return td;
+	return (pDataTable->prop != NULL);
 }
 
 void CHalfLife2::SetEdictStateChanged(edict_t *pEdict, unsigned short offset)
@@ -1221,8 +1224,14 @@ const char *CHalfLife2::GetEntityClassname(CBaseEntity *pEntity)
 	{
 		CBaseEntity *pGetterEnt = ReferenceToEntity(0);
 		datamap_t *pMap = GetDataMap(pGetterEnt);
-		typedescription_t *pDesc = FindInDataMap(pMap, "m_iClassname");
+		
-		offset = GetTypeDescOffs(pDesc);
+		sm_datatable_info_t info;
+		if (!FindDataMapInfo(pMap, "m_iClassname", &info))
+		{
+			return NULL;
+		}
+		
+		offset = info.actual_offset;
 	}
 
 	return *(const char **)(((unsigned char *)pEntity) + offset);

core/HalfLife2.h

@@ -66,7 +66,7 @@ struct DataTableInfo
 struct DataMapTrie
 {
 	DataMapTrie() : trie(NULL) {}
-	Trie *trie;
+	KTrie<sm_datatable_info_t> *trie;
 };
 
 struct DelayedFakeCliCmd
@@ -123,7 +123,7 @@ public: //IGameHelpers
 	datamap_t *GetDataMap(CBaseEntity *pEntity);
 	ServerClass *FindServerClass(const char *classname);
 	typedescription_t *FindInDataMap(datamap_t *pMap, const char *offset);
-	typedescription_t *FindInDataMap(datamap_t *pMap, const char *offset, bool *isNested);
+	bool FindDataMapInfo(datamap_t *pMap, const char *offset, sm_datatable_info_t *pDataTable);
 	void SetEdictStateChanged(edict_t *pEdict, unsigned short offset);
 	bool TextMsg(int client, int dest, const char *msg);
 	bool HintTextMsg(int client, const char *msg);

core/smn_entities.cpp

@@ -796,6 +796,82 @@ static cell_t FindSendPropInfo(IPluginContext *pContext, const cell_t *params)
 	return info.actual_offset;
 }
 
+static void GuessDataPropTypes(typedescription_t *td, cell_t * pSize, cell_t * pType)
+{
+	switch (td->fieldType)
+	{
+	case FIELD_TICK:
+	case FIELD_MODELINDEX:
+	case FIELD_MATERIALINDEX:
+	case FIELD_INTEGER:
+	case FIELD_COLOR32:
+		{
+			*pType = PropField_Integer;
+			*pSize = 32;
+			break;
+		}
+	case FIELD_VECTOR:
+	case FIELD_POSITION_VECTOR:
+		{
+			*pType = PropField_Vector;
+			*pSize = 12;
+			break;
+		}
+	case FIELD_SHORT:
+		{
+			*pType = PropField_Integer;
+			*pSize = 16;
+			break;
+		}
+	case FIELD_BOOLEAN:
+		{
+			*pType = PropField_Integer;
+			*pSize = 1;
+			break;
+		}
+	case FIELD_CHARACTER:
+		{
+			if (td->fieldSize == 1)
+			{
+				*pType = PropField_Integer;
+				*pSize = 8;
+			}
+			else
+			{
+				*pType = PropField_String;
+				*pSize = 8 * td->fieldSize;
+			}
+			break;
+		}
+	case FIELD_MODELNAME:
+	case FIELD_SOUNDNAME:
+	case FIELD_STRING:
+		{
+			*pSize = sizeof(string_t);
+			*pType = PropField_String_T;
+			break;
+		}
+	case FIELD_FLOAT:
+	case FIELD_TIME:
+		{
+			*pType = PropField_Float;
+			*pSize = 32;
+			break;
+		}
+	case FIELD_EHANDLE:
+		{
+			*pType = PropField_Entity;
+			*pSize = 32;
+			break;
+		}
+	default:
+		{
+			*pType = PropField_Unsupported;
+			*pSize = 0;
+		}
+	}
+}
+
 static cell_t FindDataMapOffs(IPluginContext *pContext, const cell_t *params)
 {
 	CBaseEntity *pEntity;
@@ -815,14 +891,13 @@ static cell_t FindDataMapOffs(IPluginContext *pContext, const cell_t *params)
 	}
 
 	pContext->LocalToString(params[2], &offset);
-	bool isNested = false;
+	sm_datatable_info_t info;
-	if ((td=g_HL2.FindInDataMap(pMap, offset, &isNested)) == NULL)
+	if (!g_HL2.FindDataMapInfo(pMap, offset, &info))
 	{
-		if (isNested)
+		return -1;
-			return pContext->ThrowNativeError("Property \"%s\" is not safe to access for entity %d", offset, params[1]);
-		else
-			return -1;
 	}
+	
+	td = info.prop;
 
 	if (params[0] == 4)
 	{
@@ -830,84 +905,62 @@ static cell_t FindDataMapOffs(IPluginContext *pContext, const cell_t *params)
 
 		pContext->LocalToPhysAddr(params[3], &pType);
 		pContext->LocalToPhysAddr(params[4], &pSize);
-
+		
-		switch (td->fieldType)
+		GuessDataPropTypes(td, pSize, pType);
-		{
-		case FIELD_TICK:
-		case FIELD_MODELINDEX:
-		case FIELD_MATERIALINDEX:
-		case FIELD_INTEGER:
-		case FIELD_COLOR32:
-			{
-				*pType = PropField_Integer;
-				*pSize = 32;
-				break;
-			}
-		case FIELD_VECTOR:
-		case FIELD_POSITION_VECTOR:
-			{
-				*pType = PropField_Vector;
-				*pSize = 12;
-				break;
-			}
-		case FIELD_SHORT:
-			{
-				*pType = PropField_Integer;
-				*pSize = 16;
-				break;
-			}
-		case FIELD_BOOLEAN:
-			{
-				*pType = PropField_Integer;
-				*pSize = 1;
-				break;
-			}
-		case FIELD_CHARACTER:
-			{
-				if (td->fieldSize == 1)
-				{
-					*pType = PropField_Integer;
-					*pSize = 8;
-				}
-				else
-				{
-					*pType = PropField_String;
-					*pSize = 8 * td->fieldSize;
-				}
-				break;
-			}
-		case FIELD_MODELNAME:
-		case FIELD_SOUNDNAME:
-		case FIELD_STRING:
-			{
-				*pSize = sizeof(string_t);
-				*pType = PropField_String_T;
-				break;
-			}
-		case FIELD_FLOAT:
-		case FIELD_TIME:
-			{
-				*pType = PropField_Float;
-				*pSize = 32;
-				break;
-			}
-		case FIELD_EHANDLE:
-			{
-				*pType = PropField_Entity;
-				*pSize = 32;
-				break;
-			}
-		default:
-			{
-				*pType = PropField_Unsupported;
-				*pSize = 0;
-			}
-		}
 	}
 
 	return GetTypeDescOffs(td);
 }
 
+static cell_t FindDataMapInfo(IPluginContext *pContext, const cell_t *params)
+{
+	CBaseEntity *pEntity;
+	datamap_t *pMap;
+	typedescription_t *td;
+	char *offset;
+	pEntity = GetEntity(params[1]);
+
+	if (!pEntity)
+	{
+		return pContext->ThrowNativeError("Entity %d (%d) is invalid", g_HL2.ReferenceToIndex(params[1]), params[1]);
+	}
+
+	if ((pMap=CBaseEntity_GetDataDescMap(pEntity)) == NULL)
+	{
+		return pContext->ThrowNativeError("Unable to retrieve GetDataDescMap offset");
+	}
+
+	pContext->LocalToString(params[2], &offset);
+	sm_datatable_info_t info;
+	if (!g_HL2.FindDataMapInfo(pMap, offset, &info))
+	{
+		return -1;
+	}
+	
+	td = info.prop;
+
+	if (params[0] >= 4)
+	{
+		cell_t *pType, *pSize;
+
+		pContext->LocalToPhysAddr(params[3], &pType);
+		pContext->LocalToPhysAddr(params[4], &pSize);
+		
+		GuessDataPropTypes(td, pSize, pType);
+		
+		if (params[0] == 5)
+		{
+			cell_t *pLocalOffs;
+			
+			pContext->LocalToPhysAddr(params[5], &pLocalOffs);
+			
+			*pLocalOffs = GetTypeDescOffs(info.prop);
+		}
+	}
+
+	return info.actual_offset;
+}
+
 static cell_t GetEntDataString(IPluginContext *pContext, const cell_t *params)
 {
 	CBaseEntity *pEntity = GetEntity(params[1]);
@@ -966,23 +1019,16 @@ static cell_t SetEntDataString(IPluginContext *pContext, const cell_t *params)
 	{ \
 		return pContext->ThrowNativeError("Could not retrieve datamap"); \
 	} \
-	bool isNested = false; \
+	sm_datatable_info_t info; \
-	if ((td = g_HL2.FindInDataMap(pMap, prop, &isNested)) == NULL) \
+	if (!g_HL2.FindDataMapInfo(pMap, prop, &info)) \
 	{ \
 		const char *class_name = g_HL2.GetEntityClassname(pEntity); \
-		if (isNested) \
+		return pContext->ThrowNativeError("Property \"%s\" not found (entity %d/%s)", \
-		{ \
+			prop, \
-			return pContext->ThrowNativeError("Property \"%s\" not safe to access (entity %d/%s)", \
+			params[1], \
-				prop, \
+			((class_name) ? class_name : "")); \
-				params[1], \
+	} \
-				((class_name) ? class_name : "")); \
+	td = info.prop;
-		} else { \
-			return pContext->ThrowNativeError("Property \"%s\" not found (entity %d/%s)", \
-				prop, \
-				params[1], \
-				((class_name) ? class_name : "")); \
-		} \
-	}
 
 #define CHECK_SET_PROP_DATA_OFFSET() \
 	if (element < 0 || element >= td->fieldSize) \
@@ -993,7 +1039,7 @@ static cell_t SetEntDataString(IPluginContext *pContext, const cell_t *params)
 			td->fieldSize); \
 	} \
 	\
-	offset = GetTypeDescOffs(td) + (element * (td->fieldSizeInBytes / td->fieldSize));
+	offset = info.actual_offset + (element * (td->fieldSizeInBytes / td->fieldSize));
 
 #define FIND_PROP_SEND(type, type_name) \
 	sm_sendprop_info_t info;\
@@ -1808,7 +1854,7 @@ static cell_t GetEntPropString(IPluginContext *pContext, const cell_t *params)
 					element);
 			}
 
-			offset = GetTypeDescOffs(td);
+			offset = info.actual_offset;
 			if (bIsStringIndex)
 			{
 				offset += (element * (td->fieldSizeInBytes / td->fieldSize));
@@ -1896,25 +1942,23 @@ static cell_t SetEntPropString(IPluginContext *pContext, const cell_t *params)
 	case Prop_Data:
 		{
 			datamap_t *pMap;
-			typedescription_t *td;
 			if ((pMap=CBaseEntity_GetDataDescMap(pEntity)) == NULL)
 			{
 				return pContext->ThrowNativeError("Unable to retrieve GetDataDescMap offset");
 			}
 			pContext->LocalToString(params[3], &prop);
-			bool isNested = false;
+			sm_datatable_info_t info;
-			if ((td=g_HL2.FindInDataMap(pMap, prop, &isNested)) == NULL)
+			if (!g_HL2.FindDataMapInfo(pMap, prop, &info))
 			{
-				if (isNested)
+				return pContext->ThrowNativeError("Property \"%s\" not found for entity %d", prop, params[1]);
-					return pContext->ThrowNativeError("Property \"%s\" is not safe to access for entity %d", prop, params[1]);
-				else
-					return pContext->ThrowNativeError("Property \"%s\" not found for entity %d", prop, params[1]);
 			}
+			
+			typedescription_t *td = info.prop;
 			if (td->fieldType != FIELD_CHARACTER)
 			{
 				return pContext->ThrowNativeError("Property \"%s\" is not a valid string", prop);
 			}
-			offset = GetTypeDescOffs(td);
+			offset = info.actual_offset;
 			maxlen = td->fieldSize;
 			break;
 		}
@@ -2138,14 +2182,16 @@ static cell_t GetEntityFlags(IPluginContext *pContext, const cell_t *params)
 	{
 		return pContext->ThrowNativeError("Could not retrieve datamap");
 	}
-	if ((td = g_HL2.FindInDataMap(pMap, prop)) == NULL)
+	
+	sm_datatable_info_t info;
+	if (!g_HL2.FindDataMapInfo(pMap, prop, &info))
 	{
 		return pContext->ThrowNativeError("Property \"%s\" not found (entity %d)",
 			prop,
 			params[1]);
 	}
 
-	int offset = GetTypeDescOffs(td);
+	int offset = info.actual_offset;
 
 	int32_t actual_flags = *(int32_t *)((uint8_t *)pEntity + offset);
 	int32_t sm_flags = 0;
@@ -2176,21 +2222,22 @@ static cell_t SetEntityFlags(IPluginContext *pContext, const cell_t *params)
 		return pContext->ThrowNativeError("Could not find m_fFlags prop in gamedata");
 	}
 
-	typedescription_t *td;
 	datamap_t *pMap;
 
 	if ((pMap = CBaseEntity_GetDataDescMap(pEntity)) == NULL)
 	{
 		return pContext->ThrowNativeError("Could not retrieve datamap");
 	}
-	if ((td = g_HL2.FindInDataMap(pMap, prop)) == NULL)
+	
+	sm_datatable_info_t info;
+	if (!g_HL2.FindDataMapInfo(pMap, prop, &info))
 	{
 		return pContext->ThrowNativeError("Property \"%s\" not found (entity %d)",
 			prop,
 			params[1]);
 	}
 
-	int offset = GetTypeDescOffs(td);
+	int offset = info.actual_offset;
 
 	int32_t sm_flags = params[2];
 	int32_t actual_flags = 0;
@@ -2262,5 +2309,6 @@ REGISTER_NATIVES(entityNatives)
 	{"SetEntPropString",		SetEntPropString},
 	{"SetEntPropVector",		SetEntPropVector},
 	{"GetEntityAddress",		GetEntityAddress},
+	{"FindDataMapInfo",		FindDataMapInfo},
 	{NULL,						NULL}
 };

extensions/sdktools/output.cpp

@@ -356,8 +356,13 @@ const char *EntityOutputManager::GetEntityClassname(CBaseEntity *pEntity)
 	if (offset == -1)
 	{
 		datamap_t *pMap = gamehelpers->GetDataMap(pEntity);
-		typedescription_t *pDesc = gamehelpers->FindInDataMap(pMap, "m_iClassname");
+		sm_datatable_info_t info;
-		offset = GetTypeDescOffs(pDesc);
+		if (!gamehelpers->FindDataMapInfo(pMap, "m_iClassname", &info))
+		{
+			return NULL;
+		}
+		
+		offset = info.actual_offset;
 	}
 
 	return *(const char **)(((unsigned char *)pEntity) + offset);

extensions/sdktools/vhelpers.cpp

@@ -585,14 +585,17 @@ CON_COMMAND(sm_dump_classes, "Dumps the class list as a text file")
 
 	fprintf(fp, "// Dump of all classes for \"%s\" as at %s\n//\n\n", g_pSM->GetGameFolderName(), buffer);
 
+	sm_datatable_info_t info;
 	for ( int i = dict->m_Factories.First(); i != dict->m_Factories.InvalidIndex(); i = dict->m_Factories.Next( i ) )
 	{
 		IServerNetworkable *entity = dict->Create(dict->m_Factories.GetElementName(i));
 		ServerClass *sclass = entity->GetServerClass();
 		fprintf(fp,"%s - %s\n",sclass->GetName(), dict->m_Factories.GetElementName(i));
-
+		
-		typedescription_t *datamap = gamehelpers->FindInDataMap(gamehelpers->GetDataMap(entity->GetBaseEntity()), "m_iEFlags");
+		if (!gamehelpers->FindDataMapInfo(gamehelpers->GetDataMap(entity->GetBaseEntity()), "m_iEFlags", &info))
-		int *eflags = (int *)((char *)entity->GetBaseEntity() + GetTypeDescOffs(datamap));
+			continue;
+		
+		int *eflags = (int *)((char *)entity->GetBaseEntity() + info.actual_offset);
 		*eflags |= (1<<0); // EFL_KILLME
 	}
 
@@ -819,14 +822,13 @@ CON_COMMAND(sm_dump_datamaps, "Dumps the data map list as a text file")
 
 		if (offsEFlags == -1)
 		{
-			typedescription_t *datamap = gamehelpers->FindInDataMap(pMap, "m_iEFlags");
+			sm_datatable_info_t info;
-		
+			if (!gamehelpers->FindDataMapInfo(pMap, "m_iEFlags", &info))
-			if (!datamap)
 			{
 				continue;
 			}
 
-			offsEFlags = GetTypeDescOffs(datamap);
+			offsEFlags = info.actual_offset;
 		}
 		
 		int *eflags = (int *)((char *)entity->GetBaseEntity() + offsEFlags);

extensions/sdktools/vnatives.cpp

@@ -548,10 +548,10 @@ static cell_t SlapPlayer(IPluginContext *pContext, const cell_t *params)
 		if (frag_prop)
 		{
 			datamap_t *pMap = gamehelpers->GetDataMap(pEntity);
-			typedescription_t *pType = gamehelpers->FindInDataMap(pMap, frag_prop);
+			sm_datatable_info_t info;
-			if (pType != NULL)
+			if (gamehelpers->FindDataMapInfo(pMap, frag_prop, &info))
 			{
-				s_frag_offs = GetTypeDescOffs(pType);
+				s_frag_offs = info.actual_offset;
 			}
 		}
 		if (!s_frag_offs)
@@ -684,10 +684,13 @@ static cell_t NativeFindEntityByClassname(IPluginContext *pContext, const cell_t
 	static int offset = -1;
 	if (offset == -1)
 	{
-		offset = GetTypeDescOffs(
+		sm_datatable_info_t info;
-			gamehelpers->FindInDataMap(gamehelpers->GetDataMap(pEntity),
+		if (!gamehelpers->FindDataMapInfo(gamehelpers->GetDataMap(pEntity), "m_iClassname", &info))
-			"m_iClassname")
+		{
-			);
+			return -1;
+		}
+		
+		offset = info.actual_offset;
 	}
 
 	string_t s;

plugins/include/entity.inc

@@ -449,6 +449,26 @@ native FindDataMapOffs(entity,
 					   const String:prop[],
 					   &PropFieldType:type=PropFieldType:0,
 					   &num_bits=0);
+					   
+/**
+ * Given an entity, finds a nested datamap property offset.
+ * This information is cached for future calls.
+ *
+ * @param entity		Entity index.
+ * @param prop			Property name.
+ * @param type			Optional parameter to store the type.
+ * @param num_bits		Optional parameter to store the number of bits the field 
+ *						uses.  The bit count will either be 1 (for boolean) or 
+ *						divisible by 8 (including 0 if unknown).
+ * @param local_offset	Optional parameter to store the local offset, as 
+ *						FindDataMapOffs() would return.
+ * @return				An offset, or -1 on failure.
+ */
+native FindDataMapInfo(entity, 
+					   const String:prop[],
+					   &PropFieldType:type=PropFieldType:0,
+					   &num_bits=0,
+					   &local_offset=0);
 
 /**
  * Wrapper function for finding a send property for a particular entity.

public/IGameHelpers.h

@@ -40,7 +40,7 @@
  */
 
 #define SMINTERFACE_GAMEHELPERS_NAME		"IGameHelpers"
-#define SMINTERFACE_GAMEHELPERS_VERSION		9
+#define SMINTERFACE_GAMEHELPERS_VERSION		10
 
 class CBaseEntity;
 class CBaseHandle;
@@ -66,6 +66,12 @@ namespace SourceMod
 		SendProp *prop;					/**< Property instance. */
 		unsigned int actual_offset;		/**< Actual computed offset. */
 	};
+	
+	struct sm_datatable_info_t
+	{
+		typedescription_t *prop;			/**< Property instance. */
+		unsigned int actual_offset;		/**< Actual computed offset. */
+	};
 
 	class IGameHelpers : public SMInterface
 	{
@@ -318,6 +324,17 @@ namespace SourceMod
 		 * @return				True if valid, otherwise false.
 		 */
 		virtual bool IsMapValid(const char *map) =0;
+		
+		/**
+		 * @brief Finds a datamap_t definition.
+		 *
+		 * @param pMap			datamap_t pointer.
+		 * @param offset			Property name.
+		 * @param pDataTable	Buffer to store sm_datatable_info_t data.
+		 * @return				typedescription_t pointer on success, NULL 
+		 *						on failure.
+		 */
+		virtual bool FindDataMapInfo(datamap_t *pMap, const char *offset, sm_datatable_info_t *pDataTable) =0;
 	};
 }