diff options
Diffstat (limited to 'sp/src/utils/vmpi/imysqlwrapper.h')
| -rw-r--r-- | sp/src/utils/vmpi/imysqlwrapper.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/sp/src/utils/vmpi/imysqlwrapper.h b/sp/src/utils/vmpi/imysqlwrapper.h new file mode 100644 index 00000000..f5a8dfa3 --- /dev/null +++ b/sp/src/utils/vmpi/imysqlwrapper.h @@ -0,0 +1,115 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef MYSQL_WRAPPER_H
+#define MYSQL_WRAPPER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+#include "utlvector.h"
+#include "interface.h"
+
+
+class IMySQLRowSet;
+
+
+class CColumnValue
+{
+public:
+
+ CColumnValue( IMySQLRowSet *pSQL, int iColumn );
+
+ const char* String();
+ long Int32();
+
+private:
+ IMySQLRowSet *m_pSQL;
+ int m_iColumn;
+};
+
+
+
+class IMySQLRowSet
+{
+public:
+ virtual void Release() = 0;
+
+ // Get the number of columns in the data returned from the last query (if it was a select statement).
+ virtual int NumFields() = 0;
+
+ // Get the name of each column returned by the last query.
+ virtual const char* GetFieldName( int iColumn ) = 0;
+
+ // Call this in a loop until it returns false to iterate over all rows the query returned.
+ virtual bool NextRow() = 0;
+
+ // You can call this to start iterating over the result set from the start again.
+ // Note: after calling this, you have to call NextRow() to actually get the first row's value ready.
+ virtual bool SeekToFirstRow() = 0;
+
+ virtual CColumnValue GetColumnValue( int iColumn ) = 0;
+ virtual CColumnValue GetColumnValue( const char *pColumnName ) = 0;
+
+ virtual const char* GetColumnValue_String( int iColumn ) = 0;
+ virtual long GetColumnValue_Int( int iColumn ) = 0;
+
+ // You can call this to get the index of a column for faster lookups with GetColumnValue( int ).
+ // Returns -1 if the column can't be found.
+ virtual int GetColumnIndex( const char *pColumnName ) = 0;
+};
+
+
+class IMySQL : public IMySQLRowSet
+{
+public:
+ virtual bool InitMySQL( const char *pDBName, const char *pHostName="", const char *pUserName="", const char *pPassword="" ) = 0;
+ virtual void Release() = 0;
+
+ // These execute SQL commands. They return 0 if the query was successful.
+ virtual int Execute( const char *pString ) = 0;
+
+ // This reads in all of the data in the last row set you queried with Execute and builds a separate
+ // copy. This is useful in some of the VMPI tools to have a thread repeatedly execute a slow query, then
+ // store off the results for the main thread to parse.
+ virtual IMySQLRowSet* DuplicateRowSet() = 0;
+
+ // If you just inserted rows into a table with an AUTO_INCREMENT column,
+ // then this returns the (unique) value of that column.
+ virtual unsigned long InsertID() = 0;
+
+ // Returns the last error message, if an error took place
+ virtual const char * GetLastError() = 0;
+};
+
+
+#define MYSQL_WRAPPER_VERSION_NAME "MySQLWrapper001"
+
+
+// ------------------------------------------------------------------------------------------------ //
+// Inlines.
+// ------------------------------------------------------------------------------------------------ //
+
+inline CColumnValue::CColumnValue( IMySQLRowSet *pSQL, int iColumn )
+{
+ m_pSQL = pSQL;
+ m_iColumn = iColumn;
+}
+
+inline const char* CColumnValue::String()
+{
+ return m_pSQL->GetColumnValue_String( m_iColumn );
+}
+
+inline long CColumnValue::Int32()
+{
+ return m_pSQL->GetColumnValue_Int( m_iColumn );
+}
+
+
+#endif // MYSQL_WRAPPER_H
|