Merge of rewritten NS module into trunk

dlls/ns/AllocString.h

@@ -0,0 +1,122 @@
+/* AMX Mod X 
+ *   Natural Selection Module 
+ * 
+ * by the AMX Mod X Development Team 
+ *
+ * This file is part of AMX Mod X. 
+ * 
+ * 
+ *  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 
+ * 
+ *  In addition, as a special exception, the author gives permission to 
+ *  link the code of this program with the Half-Life Game Engine ("HL 
+ *  Engine") and Modified Game Libraries ("MODs") developed by Valve, 
+ *  L.L.C ("Valve"). You must obey the GNU General Public License in all 
+ *  respects for all of the code used other than the HL Engine and MODs 
+ *  from Valve. If you modify this file, you may extend this exception 
+ *  to your version of the file, but you are not obligated to do so. If 
+ *  you do not wish to do so, delete this exception statement from your 
+ *  version. 
+ */ 
+
+/* This file is a replacement for the engine call of ALLOC_STRING
+ * The main difference is that a string will not be allocated twice
+ * as to try to avoid wasting the HL zone space.
+ *
+ * NOTE: The lookup uses strcmp() in a linked list! It is not fast
+ *       Its implementation in the NS module is on rarely used
+ *       natives.
+ */
+
+#ifndef ALLOCSTRING_H
+#define ALLOCSTRING_H
+
+#include "CString.h"
+#include "sh_list.h"
+
+class StringManager
+{
+private:
+	List<String *>		m_StringList;
+
+public:
+	/**
+	 * sh_list.h does not delete objects put into
+	 * the list, so I need to delete those and clear()
+	 */
+	inline void Clear(void)
+	{
+		List<String *>::iterator		 end;
+		List<String *>::iterator		 iter;
+
+		iter=m_StringList.begin();
+		end=m_StringList.end();
+
+		while (iter!=end)
+		{
+			delete (*iter++);
+		}
+
+		m_StringList.clear();
+	}
+
+	/**
+	 * Iterate the list to see if the string exists
+	 * This is slow and not very ideal, however
+	 * this is *very* rarely used so it won't matter
+	 */
+	inline int Allocate(const char *str)
+	{
+		List<String *>::iterator		 end;
+		List<String *>::iterator		 iter;
+
+		iter=m_StringList.begin();
+		end=m_StringList.end();
+
+		while (iter!=end)
+		{
+			if (strcmp(str,(*iter)->c_str()))
+			{
+				// String is already in the list, do not allocate it again
+				return MAKE_STRING((*iter)->c_str());
+			}
+			++iter;
+		}
+
+		// Was not found in the linked list, allocate it and add it to the list
+		String *AllocStr = new String;
+
+		AllocStr->assign(str);
+
+		m_StringList.push_back(AllocStr);
+
+		return MAKE_STRING(AllocStr->c_str());
+
+	};
+
+};
+
+extern StringManager AllocStringList;
+
+/**
+ * Simple wrapper to make conversion easier
+ */
+inline int ALLOC_STRING2(const char *InputString)
+{
+	return AllocStringList.Allocate(InputString);
+}
+
+
+#endif // ALLOCSTRING_H