MagickCore  6.9.12-43
Convert, Edit, Or Compose Bitmap Images
random-private.h
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1 /*
2  Copyright 1999-2021 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 random generation private methods.
17 */
18 #ifndef MAGICKCORE_RANDOM_PRIVATE_H
19 #define MAGICKCORE_RANDOM_PRIVATE_H
20 
21 #include "magick/thread-private.h"
22 
23 #if defined(__cplusplus) || defined(c_plusplus)
24 extern "C" {
25 #endif
26 
28 {
29  ssize_t
30  i;
31 
32  assert(random_info != (RandomInfo **) NULL);
33  for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
34  if (random_info[i] != (RandomInfo *) NULL)
35  random_info[i]=DestroyRandomInfo(random_info[i]);
36  return((RandomInfo **) RelinquishAlignedMemory(random_info));
37 }
38 
39 static inline RandomInfo **AcquireRandomInfoTLS(void)
40 {
41  ssize_t
42  i;
43 
45  **random_info;
46 
47  size_t
49 
50  number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
51  random_info=(RandomInfo **) AcquireAlignedMemory(number_threads,
52  sizeof(*random_info));
53  if (random_info == (RandomInfo **) NULL)
54  ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
55  (void) memset(random_info,0,number_threads*sizeof(*random_info));
56  for (i=0; i < (ssize_t) number_threads; i++)
57  random_info[i]=AcquireRandomInfo();
58  return(random_info);
59 }
60 
61 extern MagickExport unsigned long
63 
64 extern MagickExport double
66 
67 #if defined(__cplusplus) || defined(c_plusplus)
68 }
69 #endif
70 
71 #endif
static RandomInfo ** AcquireRandomInfoTLS(void)
Definition: random-private.h:39
#define ThrowFatalException(severity, tag)
Definition: exception-private.h:42
MagickExport double GetRandomInfoNormalize(const RandomInfo *)
Definition: random.c:639
Definition: random.c:80
MagickExport RandomInfo * DestroyRandomInfo(RandomInfo *random_info)
Definition: random.c:275
Definition: exception.h:78
MagickExport void * RelinquishAlignedMemory(void *memory)
Definition: memory.c:1120
MagickExport RandomInfo * AcquireRandomInfo(void)
Definition: random.c:164
MagickExport MagickSizeType GetMagickResourceLimit(const ResourceType type)
Definition: resource.c:842
MagickExport void * AcquireAlignedMemory(const size_t count, const size_t quantum)
Definition: memory.c:365
size_t number_threads
Definition: quantum-private.h:70
Definition: resource_.h:33
static RandomInfo * random_info
Definition: resource.c:112
#define MagickExport
Definition: method-attribute.h:80
MagickExport unsigned long * GetRandomInfoSeed(RandomInfo *)
Definition: random.c:667
static RandomInfo ** DestroyRandomInfoTLS(RandomInfo **random_info)
Definition: random-private.h:27