MagickCore  6.9.10
Convert, Edit, Or Compose Bitmap Images
random-private.h
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1 /*
2  Copyright 1999-2020 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 
29 {
30  register ssize_t
31  i;
32 
33  assert(random_info != (RandomInfo **) NULL);
34  for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
35  if (random_info[i] != (RandomInfo *) NULL)
36  random_info[i]=DestroyRandomInfo(random_info[i]);
37  return((RandomInfo **) RelinquishAlignedMemory(random_info));
38 }
39 
41 {
42  register ssize_t
43  i;
44 
46  **random_info;
47 
48  size_t
50 
51  number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
52  random_info=(RandomInfo **) AcquireAlignedMemory(number_threads,
53  sizeof(*random_info));
54  if (random_info == (RandomInfo **) NULL)
55  ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
56  (void) memset(random_info,0,number_threads*sizeof(*random_info));
57  for (i=0; i < (ssize_t) number_threads; i++)
58  random_info[i]=AcquireRandomInfo();
59  return(random_info);
60 }
61 
62 extern MagickExport unsigned long
64 
65 extern MagickExport double
67 
68 #if defined(__cplusplus) || defined(c_plusplus)
69 }
70 #endif
71 
72 #endif
#define ThrowFatalException(severity, tag)
Definition: exception-private.h:42
static RandomInfo ** DestroyRandomInfoThreadSet(RandomInfo **random_info)
Definition: random-private.h:27
MagickExport double GetRandomInfoNormalize(const RandomInfo *)
Definition: random.c:648
static RandomInfo ** AcquireRandomInfoThreadSet(void)
Definition: random-private.h:40
Definition: random.c:77
MagickExport RandomInfo * DestroyRandomInfo(RandomInfo *random_info)
Definition: random.c:272
Definition: exception.h:78
MagickExport void * RelinquishAlignedMemory(void *memory)
Definition: memory.c:1081
MagickExport RandomInfo * AcquireRandomInfo(void)
Definition: random.c:161
MagickExport MagickSizeType GetMagickResourceLimit(const ResourceType type)
Definition: resource.c:839
MagickExport void * AcquireAlignedMemory(const size_t count, const size_t quantum)
Definition: memory.c:337
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:676