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NeoStats-NeoIRCd/include/balloc.h
fishwaldo 580ea66a45 Wow. HUGE update. Update all headers to reflect NeoIRCD. aliases for services implemented
config file parsing updated, and modified example.conf to be compatible.
2002-09-13 06:50:09 +00:00

98 lines
2.8 KiB
C

/*
* NeoIRCd: NeoStats Group. Based on Hybird7
* balloc.h: The ircd block allocator header.
*
* 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
*
* $Id: balloc.h,v 1.3 2002/09/13 06:50:06 fishwaldo Exp $
*/
#ifndef INCLUDED_blalloc_h
#define INCLUDED_blalloc_h
#include "setup.h"
#ifndef NOBALLOC
#include "tools.h"
#include "memory.h"
#include "ircd_defs.h"
/*
* Block contains status information for an allocated block in our
* heap.
*/
struct Block {
int freeElems; /* Number of available elems */
size_t alloc_size;
struct Block* next; /* Next in our chain of blocks */
void* elems; /* Points to allocated memory */
dlink_list free_list;
dlink_list used_list;
};
typedef struct Block Block;
struct MemBlock {
dlink_node self;
Block *block; /* Which block we belong to */
};
typedef struct MemBlock MemBlock;
/*
* 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 */
};
typedef struct BlockHeap BlockHeap;
extern int BlockHeapFree(BlockHeap *bh, void *ptr);
extern void * BlockHeapAlloc(BlockHeap *bh);
extern BlockHeap* BlockHeapCreate(size_t elemsize, int elemsperblock);
extern int BlockHeapDestroy(BlockHeap *bh);
extern int BlockHeapGarbageCollect(BlockHeap *);
extern void initBlockHeap(void);
#else /* NOBALLOC */
typedef struct BlockHeap BlockHeap;
#define initBlockHeap()
#define BlockHeapGarbageCollect(x)
/* This is really kludgy, passing ints as pointers is always bad. */
#define BlockHeapCreate(es, epb) ((BlockHeap*)(es))
#define BlockHeapDestroy(x)
#define BlockHeapAlloc(x) MyMalloc((int)x)
#define BlockHeapFree(x,y) MyFree(y)
#endif /* NOBALLOC */
#endif /* INCLUDED_blalloc_h */