projects / apple / libplatform.git / blame
| Commit | Line | Data |
|---|---|---|
| ada7c492 A |
1 | /* |
| 2 | * Copyright (c) 2013 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 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 | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 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. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 24 | #include <platform/string.h> | |
| 25 | ||
| 26 | #if !_PLATFORM_OPTIMIZED_MEMSET_PATTERN4 | |
| 27 | ||
| 28 | void | |
| 29 | _platform_memset_pattern4(void *b, const void *pattern4, size_t len) | |
| 30 | { | |
| 31 | char * start = (char *)b; | |
| 32 | char * p = (char *)b; | |
| 33 | while ((start + len) - p >= 4) { | |
| 34 | _platform_memmove(p, pattern4, 4); | |
| 35 | p += 4; | |
| 36 | } | |
| 37 | if ((start + len) - p != 0) { | |
| 38 | _platform_memmove(p, pattern4, (start + len) - p); | |
| 39 | } | |
| 40 | } | |
| 41 | ||
| 42 | #if VARIANT_STATIC | |
| 43 | void | |
| 44 | memset_pattern4(void *b, const void *pattern4, size_t len) | |
| 45 | { | |
| 46 | return _platform_memset_pattern4(b, pattern4, len); | |
| 47 | } | |
| 48 | #endif | |
| 49 | ||
| 50 | #endif | |
| 51 | ||
| 52 | ||
| 53 | #if !_PLATFORM_OPTIMIZED_MEMSET_PATTERN8 | |
| 54 | ||
| 55 | void | |
| 56 | _platform_memset_pattern8(void *b, const void *pattern8, size_t len) | |
| 57 | { | |
| 58 | char * start = (char *)b; | |
| 59 | char * p = (char *)b; | |
| 60 | while ((start + len) - p >= 8) { | |
| 61 | _platform_memmove(p, pattern8, 8); | |
| 62 | p += 8; | |
| 63 | } | |
| 64 | if ((start + len) - p != 0) { | |
| 65 | _platform_memmove(p, pattern8, (start + len) - p); | |
| 66 | } | |
| 67 | } | |
| 68 | ||
| 69 | #if VARIANT_STATIC | |
| 70 | void | |
| 71 | memset_pattern8(void *b, const void *pattern8, size_t len) | |
| 72 | { | |
| 73 | return _platform_memset_pattern8(b, pattern8, len); | |
| 74 | } | |
| 75 | #endif | |
| 76 | ||
| 77 | #endif | |
| 78 | ||
| 79 | ||
| 80 | #if !_PLATFORM_OPTIMIZED_MEMSET_PATTERN16 | |
| 81 | ||
| 82 | void | |
| 83 | _platform_memset_pattern16(void *b, const void *pattern16, size_t len) | |
| 84 | { | |
| 85 | char * start = (char *)b; | |
| 86 | char * p = (char *)b; | |
| 87 | while ((start + len) - p >= 16) { | |
| 88 | _platform_memmove(p, pattern16, 16); | |
| 89 | p += 16; | |
| 90 | } | |
| 91 | if ((start + len) - p != 0) { | |
| 92 | _platform_memmove(p, pattern16, (start + len) - p); | |
| 93 | } | |
| 94 | } | |
| 95 | ||
| 96 | #if VARIANT_STATIC | |
| 97 | void | |
| 98 | memset_pattern16(void *b, const void *pattern16, size_t len) | |
| 99 | { | |
| 100 | return _platform_memset_pattern16(b, pattern16, len); | |
| 101 | } | |
| 102 | #endif | |
| 103 | ||
| 104 | #endif |