65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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typedef struct Pool Pool;
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struct Pool {
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char* name;
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uint32_t maxsize;
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uint32_t cursize;
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uint32_t curfree;
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uint32_t curalloc;
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uint32_t minarena; /* smallest size of new arena */
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uint32_t quantum; /* allocated blocks should be multiple of */
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uint32_t 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)(uint32_t);
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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*, uint32_t);
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extern void* poolallocalign(Pool*, uint32_t, uint32_t, int32_t,
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uint32_t);
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extern void poolfree(Pool*, void*);
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extern uint32_t poolmsize(Pool*, void*);
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extern void* poolrealloc(Pool*, void*, uint32_t);
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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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};
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