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typedef struct Pool Pool;
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struct Pool {
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	char*	name;
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	ulong	maxsize;
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	ulong	cursize;
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	ulong	curfree;
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	ulong	curalloc;
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	ulong	minarena;	/* smallest size of new arena */
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	ulong	quantum;	/* allocated blocks should be multiple of */
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	ulong	minblock;	/* smallest newly allocated block */
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	void*	freeroot;	/* actually Free* */
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	void*	arenalist;	/* actually Arena* */
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	void*	(*alloc)(ulong);
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	int	(*merge)(void*, void*);
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	void	(*move)(void* from, void* to);
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	int	flags;
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	int	nfree;
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	int	lastcompact;
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	void	(*lock)(Pool*);
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	void	(*unlock)(Pool*);
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	void	(*print)(Pool*, char*, ...);
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	void	(*panic)(Pool*, char*, ...);
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	void	(*logstack)(Pool*);
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	void*	private;
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};
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extern void*	poolalloc(Pool*, ulong);
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extern void*	poolallocalign(Pool*, ulong, ulong, long, ulong);
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extern void	poolfree(Pool*, void*);
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extern ulong	poolmsize(Pool*, void*);
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extern void*	poolrealloc(Pool*, void*, ulong);
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extern void	poolcheck(Pool*);
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extern int	poolcompact(Pool*);
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extern void	poolblockcheck(Pool*, void*);
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extern Pool*	mainmem;
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extern Pool*	imagmem;
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enum {	/* flags */
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	POOL_ANTAGONISM	= 1<<0,
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	POOL_PARANOIA	= 1<<1,
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	POOL_VERBOSITY	= 1<<2,
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	POOL_DEBUGGING	= 1<<3,
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	POOL_LOGGING	= 1<<4,
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	POOL_TOLERANCE	= 1<<5,
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	POOL_NOREUSE	= 1<<6,
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};