projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| e9ce8d39 A |
1 | /* |
| 2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 734aad71 A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| e9ce8d39 A |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 734aad71 A |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| e9ce8d39 A |
20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 9385eb3d A |
24 | #ifndef _OBJC_ZONE_H_ |
| 25 | #define _OBJC_ZONE_H_ | |
| 26 | ||
| 27 | #import <malloc/malloc.h> | |
| e9ce8d39 A |
28 | |
| 29 | typedef malloc_zone_t NXZone; | |
| 30 | ||
| 31 | #define NX_NOZONE ((NXZone *)0) | |
| 32 | ||
| 33 | /********* Interface to zone based malloc ************/ | |
| 34 | ||
| 9385eb3d A |
35 | #include <sys/cdefs.h> |
| 36 | ||
| 37 | __BEGIN_DECLS | |
| e9ce8d39 A |
38 | extern NXZone *NXDefaultMallocZone(void); |
| 39 | // Returns the default zone used by the malloc(3) calls | |
| 40 | ||
| 41 | extern NXZone *NXCreateZone(size_t startSize, size_t granularity, int canFree); | |
| 42 | // Create a new zone with its own memory pool. | |
| 43 | // canfree: if 0 the allocator will never free memory and mallocing will be fast | |
| 44 | ||
| 45 | extern void NXNameZone(NXZone *z, const char *name); | |
| 46 | // name a zone; The string will be copied | |
| 47 | ||
| 48 | extern void *NXZoneMalloc(malloc_zone_t *zone, size_t size); | |
| 49 | ||
| 50 | extern void *NXZoneRealloc(malloc_zone_t *zone, void *ptr, size_t size); | |
| 51 | ||
| 52 | extern void *NXZoneCalloc(NXZone *zonep, size_t numElems, size_t byteSize); | |
| 53 | // Allocates and then clears | |
| 54 | ||
| 55 | extern void NXZoneFree(malloc_zone_t *zone, void *ptr); | |
| 56 | ||
| 57 | extern void NXDestroyZone(malloc_zone_t *zone); | |
| 58 | ||
| 59 | extern NXZone *NXZoneFromPtr(void *ptr); | |
| 60 | // Returns the zone for a pointer, or NX_NOZONE if not in any zone. | |
| 61 | // The ptr must have been returned from a malloc or realloc call. | |
| 9385eb3d | 62 | __END_DECLS |
| e9ce8d39 | 63 | |
| 9385eb3d | 64 | #endif /* _OBJC_ZONE_H_ */ |