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+/*
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __SQLOPERATIONS_H
+#define __SQLOPERATIONS_H
+
+#include "Common.h"
+
+#include "ace/Thread_Mutex.h"
+#include "ace/Method_Request.h"
+#include "LockedQueue.h"
+#include <queue>
+#include "Utilities/Callback.h"
+#include "QueryResult.h"
+
+/// ---- BASE ---
+
+class Database;
+class SqlDelayThread;
+
+class SqlOperation
+{
+ public:
+ virtual void OnRemove() { delete this; }
+ virtual void Execute(Database *db) = 0;
+ virtual ~SqlOperation() {}
+};
+
+/// ---- ASYNC STATEMENTS / TRANSACTIONS ----
+
+class SqlStatement : public SqlOperation
+{
+ private:
+ const char *m_sql;
+ public:
+ SqlStatement(const char *sql) : m_sql(strdup(sql)){}
+ ~SqlStatement() { void* tofree = const_cast<char*>(m_sql); free(tofree); }
+ void Execute(Database *db);
+};
+
+class SqlTransaction : public SqlOperation
+{
+ private:
+ std::queue<const char*> m_queue;
+ ACE_Thread_Mutex m_Mutex;
+ public:
+ SqlTransaction() {}
+ void DelayExecute(const char *sql)
+ {
+ m_Mutex.acquire();
+ char* _sql = strdup(sql);
+ if (_sql)
+ m_queue.push(_sql);
+ m_Mutex.release();
+ }
+ void Execute(Database *db);
+};
+
+/// ---- ASYNC QUERIES ----
+
+class SqlQuery; /// contains a single async query
+class QueryResult; /// the result of one
+class SqlResultQueue; /// queue for thread sync
+class SqlQueryHolder; /// groups several async quries
+class SqlQueryHolderEx; /// points to a holder, added to the delay thread
+
+class SqlResultQueue : public ACE_Based::LockedQueue<Trinity::IQueryCallback* , ACE_Thread_Mutex>
+{
+ public:
+ SqlResultQueue() {}
+ void Update();
+};
+
+class SqlQuery : public SqlOperation
+{
+ private:
+ const char *m_sql;
+ Trinity::IQueryCallback * m_callback;
+ SqlResultQueue * m_queue;
+ public:
+ SqlQuery(const char *sql, Trinity::IQueryCallback * callback, SqlResultQueue * queue)
+ : m_sql(strdup(sql)), m_callback(callback), m_queue(queue) {}
+ ~SqlQuery() { void* tofree = const_cast<char*>(m_sql); free(tofree); }
+ void Execute(Database *db);
+};
+
+class SqlQueryHolder
+{
+ friend class SqlQueryHolderEx;
+ private:
+ typedef std::pair<const char*, QueryResult_AutoPtr> SqlResultPair;
+ std::vector<SqlResultPair> m_queries;
+ public:
+ SqlQueryHolder() {}
+ ~SqlQueryHolder();
+ bool SetQuery(size_t index, const char *sql);
+ bool SetPQuery(size_t index, const char *format, ...) ATTR_PRINTF(3,4);
+ void SetSize(size_t size);
+ QueryResult_AutoPtr GetResult(size_t index);
+ void SetResult(size_t index, QueryResult_AutoPtr result);
+ bool Execute(Trinity::IQueryCallback * callback, SqlDelayThread *thread, SqlResultQueue *queue);
+};
+
+class SqlQueryHolderEx : public SqlOperation
+{
+ private:
+ SqlQueryHolder * m_holder;
+ Trinity::IQueryCallback * m_callback;
+ SqlResultQueue * m_queue;
+ public:
+ SqlQueryHolderEx(SqlQueryHolder *holder, Trinity::IQueryCallback * callback, SqlResultQueue * queue)
+ : m_holder(holder), m_callback(callback), m_queue(queue) {}
+ void Execute(Database *db);
+};
+
+class SqlAsyncTask : public ACE_Method_Request
+{
+public:
+ SqlAsyncTask(Database * db, SqlOperation * op) : m_db(db), m_op(op){}
+ ~SqlAsyncTask()
+ {
+ if (!m_op)
+ return;
+
+ delete m_op;
+ m_op = NULL;
+ }
+
+ int call()
+ {
+ if (m_db == NULL || m_op == NULL)
+ return -1;
+
+ try
+ {
+ m_op->Execute(m_db);
+ }
+ catch(...)
+ {
+ return -1;
+ }
+
+ return 0;
+ }
+
+private:
+ Database * m_db;
+ SqlOperation * m_op;
+};
+#endif //__SQLOPERATIONS_H
+