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This change will be integrated but ignored (-ay) to the gg-epcore/union sources, so that they retain HopeNames. Copied from Perforce Change: 24911 ServerID: perforce.ravenbrook.com
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/* .impl.h.poolmv: MANUAL VARIABLE POOL
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*
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* $Id$
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* Copyright (c) 2001 Ravenbrook Limited.
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*
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* .purpose: This is the interface to the manual-variable pool class.
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*
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* .mv: Manual-variable pools manage variably-sized blocks of memory in a
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* flexible manner. They have higher overheads than a fixed-size pool.
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*
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* .init: This class adds the following arguments to PoolCreate:
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*
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* Size extendBy
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*
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* extendBy is the default number of bytes reserved by the pool at a time.
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* A large size will make allocation cheaper but have a higher resource
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* overhead. A typical value might be 65536. See note 2.
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*
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* Size avgSize
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*
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* avgSize is an estimate of the average size of an allocation, and is used
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* to choose the size of internal tables. An accurate estimate will
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* improve the efficiency of the pool. A low estimate will make the pool
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* less space efficient. A high estimate will make the pool less time
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* efficient. A typical value might be 32. avgSize must not be less than
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* extendBy.
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*
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* Size maxSize
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*
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* maxSize is an estimate of the maximum total size that the pool will
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* reach. Setting this parameter does not actually contrain the pool, but
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* an accurate estimate will improve the efficiency of the pool. maxSize
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* must not be less than extendBy.
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*
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* Notes
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* 2. The documentation could suggest a segment size according to the
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* distribution of allocation size requests. richard 1994-11-08
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*/
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#ifndef poolmv_h
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#define poolmv_h
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#include "mpmtypes.h"
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typedef struct MVStruct *MV;
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extern PoolClass PoolClassMV(void);
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extern Bool MVCheck(MV mv);
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#define MVPool(mv) (&(mv)->poolStruct)
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extern Pool (MVPool)(MV mv);
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#endif /* poolmv_h */
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