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+/*
+ * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
+ *
+ * Copyright (C) 2002 by the past and present ircd coders, and others.
+ *
+ * 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
+ */
+
+/*! \file balloc.h
+ * \brief A block allocator
+ * \version $Id$
+ * \todo Get rid of all typedefs in this file
+ */
+
+#ifndef INCLUDED_balloc_h
+#define INCLUDED_balloc_h
+
+#include "config.h"
+#include "client.h"
+#include "ircd_defs.h"
+
+
+/*! \brief Block contains status information for
+ * an allocated block in our heap.
+ */
+struct Block
+{
+ int freeElems; /*!< Number of available elems */
+ size_t alloc_size; /*!< Size of data space for each block */
+ struct Block* next; /*!< Next in our chain of blocks */
+ void* elems; /*!< Points to allocated memory */
+ dlink_list free_list; /*!< Chain of free memory blocks */
+};
+
+typedef struct Block Block;
+
+struct MemBlock
+{
+ dlink_node self; /*!< Node for linking into free_list */
+ Block *block; /*!< Which block we belong to */
+};
+
+typedef struct MemBlock MemBlock;
+
+/*! \brief BlockHeap contains the information for the root node of the
+ * memory heap.
+ */
+struct BlockHeap
+{
+ size_t elemSize; /*!< Size of each element to be stored */
+ int elemsPerBlock; /*!< Number of elements per block */
+ int blocksAllocated; /*!< Number of blocks allocated */
+ int freeElems; /*!< Number of free elements */
+ Block* base; /*!< Pointer to first block */
+ const char *name; /*!< Name of the heap */
+ struct BlockHeap *next; /*!< Pointer to next heap */
+};
+
+typedef struct BlockHeap BlockHeap;
+
+
+extern int BlockHeapFree(BlockHeap *, void *);
+extern void * BlockHeapAlloc(BlockHeap *);
+
+extern BlockHeap* BlockHeapCreate(const char *const, size_t, int);
+extern int BlockHeapDestroy(BlockHeap *);
+extern void initBlockHeap(void);
+extern void block_heap_report_stats(struct Client *);
+#endif /* INCLUDED_balloc_h */