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NeXT Enterprise Objects Framework 1.1
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NeXT Enterprise Objects Framework 1.1.iso
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NSZone.h
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1994-04-11
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/* NSZone.h
Allocation of large regions
Copyright 1994, NeXT, Inc.
NeXT, March 1994
*/
#import <objc/objc.h>
@class NSString;
/*************** NSZone definition ***************/
typedef struct _NSZone NSZone;
/*************** Operations on zones ***************/
extern NSZone *NSDefaultMallocZone(void);
/* Returns the default zone used by the malloc(3) calls. */
extern NSZone *NSCreateZone(unsigned startSize, unsigned granularity, BOOL canFree);
/* Create a new zone with its own memory pool. If canfree is 0 the allocator will never free memory and mallocing will be fast */
extern void NSRecycleZone(NSZone *zone);
/* Adds the pages still in use to the default zone */
extern void NSSetZoneName(NSZone *zone, NSString *name);
/* Sets the zone name */
extern NSString *NSZoneName(NSZone *zone);
/* Gets the name of a zone */
/*************** Operations on pointers in zones ***********/
extern void *NSZoneMalloc(NSZone *zone, unsigned size);
/* Allocates in zone */
extern void *NSZoneRealloc(NSZone *zone, void *ptr, unsigned size);
/* Resizes in zone; ptr passed in may be NULL */
extern void NSZoneFree(NSZone *zone, void *ptr);
/* Recycles the memory */
extern void *NSZoneCalloc(NSZone *zone, unsigned numElems, unsigned byteSize);
/* Like NSZoneMalloc and then bzero. */
extern NSZone *NSZoneFromPtr(void *ptr);
/* Returns the zone for a malloced or realloced pointer, NULL if not in any zone. */