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Core/DBLayer: More generic implementation of callback chains, instead of using this functionality local to CharacterCreatInfo class. Will be used in other places as well.

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Machiavelli
2011-12-21 10:22:03 +01:00
parent 17aeeaa9b5
commit 2d93bd07ba
3 changed files with 109 additions and 55 deletions
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118
src/server/shared/Threading/Callback.h
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@@ -29,109 +29,177 @@ typedef ACE_Future<PreparedQueryResult> PreparedQueryResultFuture;
issued the request. <ParamType> is variable type of parameter that is used as parameter
for the callback function.
*/
template <typename Result, typename ParamType>
#define CALLBACK_STAGE_INVALID uint8(-1)
template <typename Result, typename ParamType, bool chain = false>
class QueryCallback
{
public:
QueryCallback() {}
QueryCallback() : _stage(chain ? 0 : CALLBACK_STAGE_INVALID) {}
//! The parameter of this function should be a resultset returned from either .AsyncQuery or .AsyncPQuery
void SetFutureResult(ACE_Future<Result> value)
{
result = value;
_result = value;
}
ACE_Future<Result> GetFutureResult()
{
return result;
return _result;
}
int IsReady()
{
return result.ready();
return _result.ready();
}
void GetResult(Result& res)
{
result.get(res);
_result.get(res);
}
void FreeResult()
{
result.cancel();
_result.cancel();
}
void SetParam(ParamType value)
{
param = value;
_param = value;
}
ParamType GetParam()
{
return param;
return _param;
}
//! Resets the stage of the callback chain
void ResetStage()
{
if (!chain)
return;
_stage = 0;
}
//! Advances the callback chain to the next stage, so upper level code can act on its results accordingly
void NextStage()
{
if (!chain)
return;
++_stage;
}
//! Returns the callback stage (or CALLBACK_STAGE_INVALID if invalid)
uint8 GetStage()
{
return _stage;
}
//! Resets all underlying variables (param, result and stage)
void Reset()
{
SetParam(NULL);
FreeResult();
ResetStage();
}
private:
ACE_Future<Result> result;
ParamType param;
ACE_Future<Result> _result;
ParamType _param;
uint8 _stage;
};
template <typename Result, typename ParamType1, typename ParamType2>
template <typename Result, typename ParamType1, typename ParamType2, bool chain = false>
class QueryCallback_2
{
public:
QueryCallback_2() {}
QueryCallback_2() : _stage(chain ? 0 : CALLBACK_STAGE_INVALID) {}
//! The parameter of this function should be a resultset returned from either .AsyncQuery or .AsyncPQuery
void SetFutureResult(ACE_Future<Result> value)
{
result = value;
_result = value;
}
ACE_Future<Result> GetFutureResult()
{
return result;
return _result;
}
int IsReady()
{
return result.ready();
return _result.ready();
}
void GetResult(Result& res)
{
result.get(res);
_result.get(res);
}
void FreeResult()
{
result.cancel();
_result.cancel();
}
void SetFirstParam(ParamType1 value)
{
param_1 = value;
_param_1 = value;
}
void SetSecondParam(ParamType2 value)
{
param_2 = value;
_param_2 = value;
}
ParamType1 GetFirstParam()
{
return param_1;
return _param_1;
}
ParamType2 GetSecondParam()
{
return param_2;
return _param_2;
}
//! Resets the stage of the callback chain
void ResetStage()
{
if (!chain)
return;
_stage = 0;
}
//! Advances the callback chain to the next stage, so upper level code can act on its results accordingly
void NextStage()
{
if (!chain)
return;
++_stage;
}
//! Returns the callback stage (or CALLBACK_STAGE_INVALID if invalid)
uint8 GetStage()
{
return _stage;
}
//! Resets all underlying variables (param, result and stage)
void Reset()
{
SetParam(NULL);
FreeResult();
ResetStage();
}
private:
ACE_Future<Result> result;
ParamType1 param_1;
ParamType2 param_2;
ACE_Future<Result> _result;
ParamType1 _param_1;
ParamType2 _param_2;
uint8 _stage;
};
#endif