MagickCore  6.8.5
random-private.h
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1 /*
2  Copyright 1999-2013 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.
6  obtain a copy of the License at
7 
8  http://www.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 #if defined(__cplusplus) || defined(c_plusplus)
22 extern "C" {
23 #endif
24 
25 #include "magick/thread-private.h"
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  return((RandomInfo **) NULL);
56  (void) ResetMagickMemory(random_info,0,number_threads*sizeof(*random_info));
57  for (i=0; i < (ssize_t) number_threads; i++)
58  {
59  random_info[i]=AcquireRandomInfo();
60  if (random_info[i] == (RandomInfo *) NULL)
61  return(DestroyRandomInfoThreadSet(random_info));
62  }
63  return(random_info);
64 }
65 
66 #if defined(__cplusplus) || defined(c_plusplus)
67 }
68 #endif
69 
70 #endif