MagickCore  7.0.3
memory-private.h
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1 /*
2  Copyright 1999-2019 ImageMagick Studio LLC, a non-profit organization
3  dedicated to making software imaging solutions freely available.
4 
5  You may not use this file except in compliance with the License. You may
6  obtain a copy of the License at
7 
8  https://imagemagick.org/script/license.php
9 
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15 
16  MagickCore private memory methods.
17 */
18 #ifndef MAGICKCORE_MEMORY_PRIVATE_H
19 #define MAGICKCORE_MEMORY_PRIVATE_H
20 
21 #if defined(__cplusplus) || defined(c_plusplus)
22 extern "C" {
23 #endif
24 
26 
27 #if defined(__powerpc__)
28 # define CACHE_LINE_SIZE (16*sizeof(void *))
29 #else
30 # define CACHE_LINE_SIZE (8*sizeof(void *))
31 #endif
32 
33 #define CacheAlign(size) ((size) < CACHE_LINE_SIZE ? CACHE_LINE_SIZE : (size))
34 
35 #if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 6))
36 #if !defined(__ICC)
37 #define MagickAssumeAligned(address) \
38  __builtin_assume_aligned((address),CACHE_LINE_SIZE)
39 #else
40 #define MagickAssumeAligned(address) (address)
41 #endif
42 #else
43 #define MagickAssumeAligned(address) (address)
44 #endif
45 
47  HeapOverflowSanityCheck(const size_t,const size_t);
48 
49 MagickExport size_t
50  GetMaxMemoryRequest(void);
51 
52 extern MagickPrivate void
55 
56 static inline void *AcquireCriticalMemory(const size_t size)
57 {
58  register void
59  *memory;
60 
61  /*
62  Fail if memory request cannot be fulfilled.
63  */
64  memory=AcquireMagickMemory(size);
65  if (memory == (void *) NULL)
66  ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
67  return(memory);
68 }
69 
70 #if defined(__cplusplus) || defined(c_plusplus)
71 }
72 #endif
73 
74 #endif
#define ThrowFatalException(severity, tag)
static void * AcquireCriticalMemory(const size_t size)
MagickExport MagickBooleanType HeapOverflowSanityCheck(const size_t, const size_t)
Definition: memory.c:994
MagickBooleanType
Definition: magick-type.h:158
MagickExport void * AcquireMagickMemory(const size_t size)
Definition: memory.c:472
MagickExport size_t GetMaxMemoryRequest(void)
Definition: memory.c:919
#define MagickPrivate
#define MagickExport
MagickPrivate void ResetMaxMemoryRequest(void)
MagickPrivate void ResetVirtualAnonymousMemory(void)
Definition: memory.c:1242