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/*
Copyright 1999-2015 ImageMagick Studio LLC, a non-profit organization
dedicated to making software imaging solutions freely available.
You may not use this file except in compliance with the License.
obtain a copy of the License at
http://www.imagemagick.org/script/license.php
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
MagickCore random generation private methods.
*/
#ifndef _MAGICKCORE_RANDOM_PRIVATE_H
#define _MAGICKCORE_RANDOM_PRIVATE_H
#include "MagickCore/thread-private.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
extern MagickPrivate double
GetRandomInfoNormalize(const RandomInfo *);
extern MagickPrivate MagickBooleanType
RandomComponentGenesis(void);
extern MagickPrivate unsigned long
*GetRandomInfoSeed(RandomInfo *);
extern MagickPrivate void
RandomComponentTerminus(void);
static inline RandomInfo **DestroyRandomInfoThreadSet(
RandomInfo **random_info)
{
register ssize_t
i;
assert(random_info != (RandomInfo **) NULL);
for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
if (random_info[i] != (RandomInfo *) NULL)
random_info[i]=DestroyRandomInfo(random_info[i]);
return((RandomInfo **) RelinquishMagickMemory(random_info));
}
static inline RandomInfo **AcquireRandomInfoThreadSet(void)
{
register ssize_t
i;
RandomInfo
**random_info;
size_t
number_threads;
number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
random_info=(RandomInfo **) AcquireQuantumMemory(number_threads,
sizeof(*random_info));
if (random_info == (RandomInfo **) NULL)
return((RandomInfo **) NULL);
(void) ResetMagickMemory(random_info,0,number_threads*sizeof(*random_info));
for (i=0; i < (ssize_t) number_threads; i++)
{
random_info[i]=AcquireRandomInfo();
if (random_info[i] == (RandomInfo *) NULL)
return(DestroyRandomInfoThreadSet(random_info));
}
return(random_info);
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif