MemList.hpp Source File

00001 /*==========================================================================
00002  * Copyright (c) 2001 Carnegie Mellon University.  All Rights Reserved.
00003  *
00004  * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
00005  * is subject to the terms of the software license set forth in the LICENSE
00006  * file included with this software, and also available at
00007  * http://www.cs.cmu.edu/~lemur/license.html
00008  *
00009  *==========================================================================
00010 */
00011 
00012 
00013 #ifndef _MEMLISTH_
00014 #define _MEMLISTH_
00015 
00016 class MemList {
00017 public:
00018   MemList(int incr, int align=8);
00019   void Reset();
00020   int NumberOfSegments() const { return numSegments; }
00021   int Used() const { return (((int)curp) - ((int)p)) + Total(); }
00022   int Total() const
00023     {
00024       int total = ((int)endp) - ((int)p);
00025       for (MemList *curml = next; curml; curml = curml->next)
00026         total += ((int)curml->endp) - ((int)curml->p);
00027       return total;
00028     }
00029   ~MemList();
00030   void *GetMem(int size);
00031 
00032 private:
00033   int numSegments;
00034   int increment;
00035   int alignment;
00036   char *p;
00037   char *curp;
00038   char *endp;
00039   MemList *next;
00040 };
00041 
00042 #endif
00043