private int QueryColumnCount()
{
int columnCount = 0;
DkmLanguageExpression expr = null;
try
{
DkmWorkList workList = DkmWorkList.Create(null);
SqliteVisualizerException ex = null;
expr = this.AddFuncEval(
workList,
$"sqlite3_column_count(*(sqlite3_stmt **){this.procMemForQuery})",
(r) =>
{
DkmSuccessEvaluationResult suc;
if (!this.VerifySuccess(r, out suc))
{
ex = new SqliteVisualizerException(Resources.ErrMsg_FuncEvalFailed, r.FullName);
return;
}
columnCount = (int)suc.Address.Value;
});
workList.Execute();
if (ex != null)
{
throw ex;
}
}
finally
{
if (expr != null)
{
expr.Close();
}
}
return(columnCount);
}
private void FinalizeQuery()
{
DkmLanguageExpression expr = null;
try
{
SqliteVisualizerException ex = null;
DkmWorkList workList = DkmWorkList.Create(null);
expr = this.AddFuncEval(
workList,
$"sqlite3_finalize(*(sqlite3_stmt **){this.procMemForQuery})",
(r) =>
{
DkmSuccessEvaluationResult suc;
if (!this.VerifySuccess(r, out suc))
{
ex = new SqliteVisualizerException(Resources.ErrMsg_FuncEvalFailed, r.FullName);
return;
}
});
workList.Execute();
if (ex != null)
{
throw ex;
}
}
finally
{
if (expr != null)
{
expr.Close();
}
}
}
private void PrepareQuery()
{
DkmLanguageExpression expr = null;
try
{
SqliteVisualizerException ex = null;
DkmWorkList workList = DkmWorkList.Create(null);
expr = this.AddFuncEval(
workList,
$"sqlite3_prepare({sqliteInstanceName}, \"{query}\", {query.Length + 1}, (sqlite3_stmt **){this.procMemForQuery}, nullptr)",
(r) =>
{
DkmSuccessEvaluationResult suc;
if (!this.VerifySuccess(r, out suc))
{
ex = new SqliteVisualizerException(Resources.ErrMsg_PrepareFailed, r.FullName);
return;
}
});
workList.Execute();
if (ex != null)
{
throw ex;
}
}
finally
{
if (expr != null)
{
expr.Close();
}
}
}