/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- AcquireMagickResource
- AsynchronousResourceComponentTerminus
- DestroyTemporaryResources
- GetPathTemplate
- AcquireUniqueFileResource
- GetMagickResource
- GetMagickResourceLimit
- ListMagickResourceInfo
- RelinquishMagickResource
- RelinquishUniqueFileResource
- MagickMax
- StringToSizeType
- ResourceComponentGenesis
- ResourceComponentTerminus
- MagickMin
- SetMagickResourceLimit
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% RRRR EEEEE SSSSS OOO U U RRRR CCCC EEEEE %
% R R E SS O O U U R R C E %
% RRRR EEE SSS O O U U RRRR C EEE %
% R R E SS O O U U R R C E %
% R R EEEEE SSSSS OOO UUU R R CCCC EEEEE %
% %
% %
% Get/Set MagickCore Resources %
% %
% Software Design %
% John Cristy %
% September 2002 %
% %
% %
% Copyright 1999-2011 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. You may %
% 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. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/cache.h"
#include "magick/configure.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/hashmap.h"
#include "magick/log.h"
#include "magick/image.h"
#include "magick/memory_.h"
#include "magick/option.h"
#include "magick/policy.h"
#include "magick/random_.h"
#include "magick/registry.h"
#include "magick/resource_.h"
#include "magick/semaphore.h"
#include "magick/signature-private.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/splay-tree.h"
#include "magick/thread-private.h"
#include "magick/token.h"
#include "magick/utility.h"
/*
Typedef declarations.
*/
typedef struct _ResourceInfo
{
MagickOffsetType
area,
memory,
map,
disk,
file,
thread,
time;
MagickSizeType
area_limit,
memory_limit,
map_limit,
disk_limit,
file_limit,
thread_limit,
time_limit;
} ResourceInfo;
/*
Global declarations.
*/
static RandomInfo
*random_info = (RandomInfo *) NULL;
static ResourceInfo
resource_info =
{
MagickULLConstant(0),
MagickULLConstant(0),
MagickULLConstant(0),
MagickULLConstant(0),
MagickULLConstant(0),
MagickULLConstant(0),
MagickULLConstant(0),
MagickULLConstant(3072)*1024*1024/sizeof(PixelPacket),
MagickULLConstant(1536)*1024*1024,
MagickULLConstant(3072)*1024*1024,
MagickResourceInfinity,
MagickULLConstant(768),
MagickULLConstant(4),
MagickResourceInfinity
};
static SemaphoreInfo
*resource_semaphore = (SemaphoreInfo *) NULL;
static SplayTreeInfo
*temporary_resources = (SplayTreeInfo *) NULL;
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c q u i r e M a g i c k R e s o u r c e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireMagickResource() acquires resources of the specified type.
% MagickFalse is returned if the specified resource is exhausted otherwise
% MagickTrue.
%
% The format of the AcquireMagickResource() method is:
%
% MagickBooleanType AcquireMagickResource(const ResourceType type,
% const MagickSizeType size)
%
% A description of each parameter follows:
%
% o type: the type of resource.
%
% o size: the number of bytes needed from for this resource.
%
*/
MagickExport MagickBooleanType AcquireMagickResource(const ResourceType type,
const MagickSizeType size)
{
char
resource_current[MaxTextExtent],
resource_limit[MaxTextExtent],
resource_request[MaxTextExtent];
MagickBooleanType
status;
MagickSizeType
limit;
status=MagickFalse;
(void) FormatMagickSize(size,MagickFalse,resource_request);
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
switch (type)
{
case AreaResource:
{
resource_info.area=(MagickOffsetType) size;
limit=resource_info.area_limit;
status=(resource_info.area_limit == MagickResourceInfinity) ||
(size < limit) ? MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.area,MagickFalse,
resource_current);
(void) FormatMagickSize(resource_info.area_limit,MagickFalse,
resource_limit);
break;
}
case MemoryResource:
{
resource_info.memory+=size;
limit=resource_info.memory_limit;
status=(resource_info.memory_limit == MagickResourceInfinity) ||
((MagickSizeType) resource_info.memory < limit) ?
MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.memory,MagickTrue,
resource_current);
(void) FormatMagickSize(resource_info.memory_limit,MagickTrue,
resource_limit);
break;
}
case MapResource:
{
resource_info.map+=size;
limit=resource_info.map_limit;
status=(resource_info.map_limit == MagickResourceInfinity) ||
((MagickSizeType) resource_info.map < limit) ?
MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.map,MagickTrue,
resource_current);
(void) FormatMagickSize(resource_info.map_limit,MagickTrue,
resource_limit);
break;
}
case DiskResource:
{
resource_info.disk+=size;
limit=resource_info.disk_limit;
status=(resource_info.disk_limit == MagickResourceInfinity) ||
((MagickSizeType) resource_info.disk < limit) ?
MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.disk,MagickTrue,
resource_current);
(void) FormatMagickSize(resource_info.disk_limit,MagickTrue,
resource_limit);
break;
}
case FileResource:
{
resource_info.file+=size;
limit=resource_info.file_limit;
status=(resource_info.file_limit == MagickResourceInfinity) ||
((MagickSizeType) resource_info.file < limit) ?
MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.file,MagickFalse,
resource_current);
(void) FormatMagickSize((MagickSizeType) resource_info.file_limit,
MagickFalse,resource_limit);
break;
}
case ThreadResource:
{
resource_info.thread+=size;
limit=resource_info.thread_limit;
status=(resource_info.thread_limit == MagickResourceInfinity) ||
((MagickSizeType) resource_info.thread < limit) ?
MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.thread,MagickFalse,
resource_current);
(void) FormatMagickSize((MagickSizeType) resource_info.thread_limit,
MagickFalse,resource_limit);
break;
}
case TimeResource:
{
resource_info.time+=size;
limit=resource_info.time_limit;
status=(resource_info.time_limit == MagickResourceInfinity) ||
((MagickSizeType) resource_info.time < limit) ?
MagickTrue : MagickFalse;
(void) FormatMagickSize((MagickSizeType) resource_info.time,MagickFalse,
resource_current);
(void) FormatMagickSize((MagickSizeType) resource_info.time_limit,
MagickFalse,resource_limit);
break;
}
default:
break;
}
UnlockSemaphoreInfo(resource_semaphore);
(void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s: %s/%s/%s",
MagickOptionToMnemonic(MagickResourceOptions,(ssize_t) type),
resource_request,resource_current,resource_limit);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ A s y n c h r o n o u s R e s o u r c e C o m p o n e n t T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AsynchronousResourceComponentTerminus() destroys the resource environment.
% It differs from ResourceComponentTerminus() in that it can be called from a
% asynchronous signal handler.
%
% The format of the ResourceComponentTerminus() method is:
%
% ResourceComponentTerminus(void)
%
*/
MagickExport void AsynchronousResourceComponentTerminus(void)
{
const char
*path;
if (temporary_resources == (SplayTreeInfo *) NULL)
return;
/*
Remove any lingering temporary files.
*/
ResetSplayTreeIterator(temporary_resources);
path=(const char *) GetNextKeyInSplayTree(temporary_resources);
while (path != (const char *) NULL)
{
(void) remove(path);
path=(const char *) GetNextKeyInSplayTree(temporary_resources);
}
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c q u i r e U n i q u e F i l e R e s o u r c e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireUniqueFileResource() returns a unique file name, and returns a file
% descriptor for the file open for reading and writing.
%
% The format of the AcquireUniqueFileResource() method is:
%
% int AcquireUniqueFileResource(char *path)
%
% A description of each parameter follows:
%
% o path: Specifies a pointer to an array of characters. The unique path
% name is returned in this array.
%
*/
static void *DestroyTemporaryResources(void *temporary_resource)
{
(void) remove((char *) temporary_resource);
temporary_resource=DestroyString((char *) temporary_resource);
return((void *) NULL);
}
static MagickBooleanType GetPathTemplate(char *path)
{
char
*directory;
ExceptionInfo
*exception;
MagickBooleanType
status;
register char
*p;
struct stat
attributes;
(void) CopyMagickString(path,"magick-XXXXXXXX",MaxTextExtent);
exception=AcquireExceptionInfo();
directory=(char *) GetImageRegistry(StringRegistryType,"temporary-path",
exception);
exception=DestroyExceptionInfo(exception);
if (directory == (char *) NULL)
directory=GetEnvironmentValue("MAGICK_TEMPORARY_PATH");
if (directory == (char *) NULL)
directory=GetEnvironmentValue("MAGICK_TMPDIR");
if (directory == (char *) NULL)
directory=GetPolicyValue("temporary-path");
if (directory == (char *) NULL)
directory=GetEnvironmentValue("TMPDIR");
#if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__OS2__)
if (directory == (char *) NULL)
directory=GetEnvironmentValue("TMP");
if (directory == (char *) NULL)
directory=GetEnvironmentValue("TEMP");
#endif
#if defined(__VMS)
if (directory == (char *) NULL)
directory=GetEnvironmentValue("MTMPDIR");
#endif
#if defined(P_tmpdir)
if (directory == (char *) NULL)
directory=ConstantString(P_tmpdir);
#endif
if (directory == (char *) NULL)
return(MagickTrue);
if (strlen(directory) > (MaxTextExtent-15))
{
directory=DestroyString(directory);
return(MagickTrue);
}
status=GetPathAttributes(directory,&attributes);
if ((status == MagickFalse) || !S_ISDIR(attributes.st_mode))
{
directory=DestroyString(directory);
return(MagickTrue);
}
if (directory[strlen(directory)-1] == *DirectorySeparator)
(void) FormatMagickString(path,MaxTextExtent,"%smagick-XXXXXXXX",directory);
else
(void) FormatMagickString(path,MaxTextExtent,"%s%smagick-XXXXXXXX",
directory,DirectorySeparator);
directory=DestroyString(directory);
if (*DirectorySeparator != '/')
for (p=path; *p != '\0'; p++)
if (*p == *DirectorySeparator)
*p='/';
return(MagickTrue);
}
MagickExport int AcquireUniqueFileResource(char *path)
{
#if !defined(O_NOFOLLOW)
#define O_NOFOLLOW 0
#endif
#if !defined(TMP_MAX)
# define TMP_MAX 238328
#endif
int
c,
file;
register char
*p;
register ssize_t
i;
static const char
portable_filename[65] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-";
StringInfo
*key;
unsigned char
*datum;
assert(path != (char *) NULL);
(void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s",path);
if (random_info == (RandomInfo *) NULL)
random_info=AcquireRandomInfo();
file=(-1);
for (i=0; i < (ssize_t) TMP_MAX; i++)
{
/*
Get temporary pathname.
*/
(void) GetPathTemplate(path);
key=GetRandomKey(random_info,2);
p=path+strlen(path)-8;
datum=GetStringInfoDatum(key);
for (i=0; i < (ssize_t) GetStringInfoLength(key); i++)
{
c=(int) (datum[i] & 0x3f);
*p++=portable_filename[c];
}
key=DestroyStringInfo(key);
#if defined(MAGICKCORE_HAVE_MKSTEMP)
file=mkstemp(path);
#if defined(__OS2__)
setmode(file,O_BINARY);
#endif
if (file != -1)
break;
#endif
key=GetRandomKey(random_info,6);
p=path+strlen(path)-6;
datum=GetStringInfoDatum(key);
for (i=0; i < (ssize_t) GetStringInfoLength(key); i++)
{
c=(int) (datum[i] & 0x3f);
*p++=portable_filename[c];
}
key=DestroyStringInfo(key);
file=open(path,O_RDWR | O_CREAT | O_EXCL | O_BINARY | O_NOFOLLOW,S_MODE);
if ((file >= 0) || (errno != EEXIST))
break;
}
(void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s",path);
if (file == -1)
return(file);
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
if (temporary_resources == (SplayTreeInfo *) NULL)
temporary_resources=NewSplayTree(CompareSplayTreeString,
DestroyTemporaryResources,(void *(*)(void *)) NULL);
UnlockSemaphoreInfo(resource_semaphore);
(void) AddValueToSplayTree(temporary_resources,ConstantString(path),
(const void *) NULL);
return(file);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c k R e s o u r c e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagickResource() returns the specified resource.
%
% The format of the GetMagickResource() method is:
%
% MagickSizeType GetMagickResource(const ResourceType type)
%
% A description of each parameter follows:
%
% o type: the type of resource.
%
*/
MagickExport MagickSizeType GetMagickResource(const ResourceType type)
{
MagickSizeType
resource;
resource=0;
LockSemaphoreInfo(resource_semaphore);
switch (type)
{
case AreaResource:
{
resource=(MagickSizeType) resource_info.area;
break;
}
case MemoryResource:
{
resource=(MagickSizeType) resource_info.memory;
break;
}
case MapResource:
{
resource=(MagickSizeType) resource_info.map;
break;
}
case DiskResource:
{
resource=(MagickSizeType) resource_info.disk;
break;
}
case FileResource:
{
resource=(MagickSizeType) resource_info.file;
break;
}
case ThreadResource:
{
resource=(MagickSizeType) resource_info.thread;
break;
}
case TimeResource:
{
resource=(MagickSizeType) resource_info.time;
break;
}
default:
break;
}
UnlockSemaphoreInfo(resource_semaphore);
return(resource);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c k R e s o u r c e L i m i t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagickResourceLimit() returns the specified resource limit.
%
% The format of the GetMagickResourceLimit() method is:
%
% MagickSizeType GetMagickResourceLimit(const ResourceType type)
%
% A description of each parameter follows:
%
% o type: the type of resource.
%
*/
MagickExport MagickSizeType GetMagickResourceLimit(const ResourceType type)
{
MagickSizeType
resource;
resource=0;
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
switch (type)
{
case AreaResource:
{
resource=resource_info.area_limit;
break;
}
case MemoryResource:
{
resource=resource_info.memory_limit;
break;
}
case MapResource:
{
resource=resource_info.map_limit;
break;
}
case DiskResource:
{
resource=resource_info.disk_limit;
break;
}
case FileResource:
{
resource=resource_info.file_limit;
break;
}
case ThreadResource:
{
resource=resource_info.thread_limit;
break;
}
case TimeResource:
{
resource=resource_info.time_limit;
break;
}
default:
break;
}
UnlockSemaphoreInfo(resource_semaphore);
return(resource);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L i s t M a g i c k R e s o u r c e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ListMagickResourceInfo() lists the resource info to a file.
%
% The format of the ListMagickResourceInfo method is:
%
% MagickBooleanType ListMagickResourceInfo(FILE *file,
% ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o file: An pointer to a FILE.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport MagickBooleanType ListMagickResourceInfo(FILE *file,
ExceptionInfo *magick_unused(exception))
{
char
area_limit[MaxTextExtent],
disk_limit[MaxTextExtent],
map_limit[MaxTextExtent],
memory_limit[MaxTextExtent],
time_limit[MaxTextExtent];
if (file == (const FILE *) NULL)
file=stdout;
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
(void) FormatMagickSize(resource_info.area_limit,MagickFalse,area_limit);
(void) FormatMagickSize(resource_info.memory_limit,MagickTrue,memory_limit);
(void) FormatMagickSize(resource_info.map_limit,MagickTrue,map_limit);
(void) CopyMagickString(disk_limit,"unlimited",MaxTextExtent);
if (resource_info.disk_limit != MagickResourceInfinity)
(void) FormatMagickSize(resource_info.disk_limit,MagickTrue,disk_limit);
(void) CopyMagickString(time_limit,"unlimited",MaxTextExtent);
if (resource_info.time_limit != MagickResourceInfinity)
(void) FormatMagickString(time_limit,MaxTextExtent,"%.20g",(double)
resource_info.time_limit);
(void) fprintf(file,"File Area Memory Map"
" Disk Thread Time\n");
(void) fprintf(file,"--------------------------------------------------------"
"-----------------------\n");
(void) fprintf(file,"%4g %10s %10s %10s %10s %6g %11s\n",(double)
resource_info.file_limit,area_limit,memory_limit,map_limit,disk_limit,
(double) resource_info.thread_limit,time_limit);
(void) fflush(file);
UnlockSemaphoreInfo(resource_semaphore);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e l i n q u i s h M a g i c k R e s o u r c e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RelinquishMagickResource() relinquishes resources of the specified type.
%
% The format of the RelinquishMagickResource() method is:
%
% void RelinquishMagickResource(const ResourceType type,
% const MagickSizeType size)
%
% A description of each parameter follows:
%
% o type: the type of resource.
%
% o size: the size of the resource.
%
*/
MagickExport void RelinquishMagickResource(const ResourceType type,
const MagickSizeType size)
{
char
resource_current[MaxTextExtent],
resource_limit[MaxTextExtent],
resource_request[MaxTextExtent];
(void) FormatMagickSize(size,MagickFalse,resource_request);
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
switch (type)
{
case AreaResource:
{
resource_info.area=(MagickOffsetType) size;
(void) FormatMagickSize((MagickSizeType) resource_info.area,MagickFalse,
resource_current);
(void) FormatMagickSize(resource_info.area_limit,MagickFalse,
resource_limit);
break;
}
case MemoryResource:
{
resource_info.memory-=size;
(void) FormatMagickSize((MagickSizeType) resource_info.memory,
MagickTrue,resource_current);
(void) FormatMagickSize(resource_info.memory_limit,MagickTrue,
resource_limit);
break;
}
case MapResource:
{
resource_info.map-=size;
(void) FormatMagickSize((MagickSizeType) resource_info.map,MagickTrue,
resource_current);
(void) FormatMagickSize(resource_info.map_limit,MagickTrue,
resource_limit);
break;
}
case DiskResource:
{
resource_info.disk-=size;
(void) FormatMagickSize((MagickSizeType) resource_info.disk,MagickTrue,
resource_current);
(void) FormatMagickSize(resource_info.disk_limit,MagickTrue,
resource_limit);
break;
}
case FileResource:
{
resource_info.file-=size;
(void) FormatMagickSize((MagickSizeType) resource_info.file,MagickFalse,
resource_current);
(void) FormatMagickSize((MagickSizeType) resource_info.file_limit,
MagickFalse,resource_limit);
break;
}
case ThreadResource:
{
resource_info.thread-=size;
(void) FormatMagickSize((MagickSizeType) resource_info.thread,MagickFalse,
resource_current);
(void) FormatMagickSize((MagickSizeType) resource_info.thread_limit,
MagickFalse,resource_limit);
break;
}
case TimeResource:
{
resource_info.time-=size;
(void) FormatMagickSize((MagickSizeType) resource_info.time,MagickFalse,
resource_current);
(void) FormatMagickSize((MagickSizeType) resource_info.time_limit,
MagickFalse,resource_limit);
break;
}
default:
break;
}
UnlockSemaphoreInfo(resource_semaphore);
(void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s: %s/%s/%s",
MagickOptionToMnemonic(MagickResourceOptions,(ssize_t) type),
resource_request,resource_current,resource_limit);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e l i n q u i s h U n i q u e F i l e R e s o u r c e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RelinquishUniqueFileResource() relinquishes a unique file resource.
%
% The format of the RelinquishUniqueFileResource() method is:
%
% MagickBooleanType RelinquishUniqueFileResource(const char *path)
%
% A description of each parameter follows:
%
% o name: the name of the temporary resource.
%
*/
MagickExport MagickBooleanType RelinquishUniqueFileResource(const char *path)
{
char
cache_path[MaxTextExtent];
assert(path != (const char *) NULL);
(void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s",path);
if (temporary_resources != (SplayTreeInfo *) NULL)
{
register char
*p;
ResetSplayTreeIterator(temporary_resources);
p=(char *) GetNextKeyInSplayTree(temporary_resources);
while (p != (char *) NULL)
{
if (LocaleCompare(p,path) == 0)
break;
p=(char *) GetNextKeyInSplayTree(temporary_resources);
}
if (p != (char *) NULL)
(void) DeleteNodeFromSplayTree(temporary_resources,p);
}
(void) CopyMagickString(cache_path,path,MaxTextExtent);
AppendImageFormat("cache",cache_path);
(void) remove(cache_path);
return(remove(path) == 0 ? MagickTrue : MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ R e s o u r c e C o m p o n e n t G e n e s i s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ResourceComponentGenesis() instantiates the resource component.
%
% The format of the ResourceComponentGenesis method is:
%
% MagickBooleanType ResourceComponentGenesis(void)
%
*/
static inline size_t MagickMax(const size_t x,const size_t y)
{
if (x > y)
return(x);
return(y);
}
static inline MagickSizeType StringToSizeType(const char *string,
const double interval)
{
double
value;
value=SiPrefixToDouble(string,interval);
if (value >= (double) MagickULLConstant(~0))
return(MagickULLConstant(~0));
return((MagickSizeType) value);
}
MagickExport MagickBooleanType ResourceComponentGenesis(void)
{
char
*limit;
MagickSizeType
memory;
ssize_t
files,
pages,
pagesize;
/*
Set Magick resource limits.
*/
AcquireSemaphoreInfo(&resource_semaphore);
pagesize=GetMagickPageSize();
pages=(-1);
#if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_PHYS_PAGES)
pages=(ssize_t) sysconf(_SC_PHYS_PAGES);
#endif
memory=(MagickSizeType) pages*pagesize;
if ((pagesize <= 0) || (pages <= 0))
memory=2048UL*1024UL*1024UL;
#if defined(PixelCacheThreshold)
memory=PixelCacheThreshold;
#endif
(void) SetMagickResourceLimit(AreaResource,2*memory/sizeof(PixelPacket));
(void) SetMagickResourceLimit(MemoryResource,memory);
(void) SetMagickResourceLimit(MapResource,2*memory);
limit=GetEnvironmentValue("MAGICK_AREA_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("area");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(AreaResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_MEMORY_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("memory");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(MemoryResource,
StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_MAP_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("map");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(MapResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_DISK_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("disk");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(DiskResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
files=(-1);
#if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_OPEN_MAX)
files=(ssize_t) sysconf(_SC_OPEN_MAX);
#endif
#if defined(MAGICKCORE_HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)
if (files < 0)
{
struct rlimit
resources;
if (getrlimit(RLIMIT_NOFILE,&resources) != -1)
files=(ssize_t) resources.rlim_cur;
}
#endif
#if defined(MAGICKCORE_HAVE_GETDTABLESIZE) && defined(MAGICKCORE_POSIX_SUPPORT)
if (files < 0)
files=(ssize_t) getdtablesize();
#endif
if (files < 0)
files=64;
(void) SetMagickResourceLimit(FileResource,MagickMax((size_t)
(3*files/4),64));
limit=GetEnvironmentValue("MAGICK_FILE_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("file");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(FileResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
(void) SetMagickResourceLimit(ThreadResource,GetOpenMPMaximumThreads());
limit=GetEnvironmentValue("MAGICK_THREAD_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("thread");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(ThreadResource,StringToSizeType(limit,
100.0));
limit=DestroyString(limit);
}
limit=GetEnvironmentValue("MAGICK_TIME_LIMIT");
if (limit == (char *) NULL)
limit=GetPolicyValue("time");
if (limit != (char *) NULL)
{
(void) SetMagickResourceLimit(TimeResource,StringToSizeType(limit,100.0));
limit=DestroyString(limit);
}
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ R e s o u r c e C o m p o n e n t T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ResourceComponentTerminus() destroys the resource component.
%
% The format of the ResourceComponentTerminus() method is:
%
% ResourceComponentTerminus(void)
%
*/
MagickExport void ResourceComponentTerminus(void)
{
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
if (temporary_resources != (SplayTreeInfo *) NULL)
temporary_resources=DestroySplayTree(temporary_resources);
if (random_info != (RandomInfo *) NULL)
random_info=DestroyRandomInfo(random_info);
UnlockSemaphoreInfo(resource_semaphore);
DestroySemaphoreInfo(&resource_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t M a g i c k R e s o u r c e L i m i t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetMagickResourceLimit() sets the limit for a particular resource.
%
% The format of the SetMagickResourceLimit() method is:
%
% MagickBooleanType SetMagickResourceLimit(const ResourceType type,
% const MagickSizeType limit)
%
% A description of each parameter follows:
%
% o type: the type of resource.
%
% o limit: the maximum limit for the resource.
%
*/
static inline MagickSizeType MagickMin(const MagickSizeType x,
const MagickSizeType y)
{
if (x < y)
return(x);
return(y);
}
MagickExport MagickBooleanType SetMagickResourceLimit(const ResourceType type,
const MagickSizeType limit)
{
char
*value;
if (resource_semaphore == (SemaphoreInfo *) NULL)
AcquireSemaphoreInfo(&resource_semaphore);
LockSemaphoreInfo(resource_semaphore);
switch (type)
{
case AreaResource:
{
resource_info.area_limit=limit;
value=GetPolicyValue("area");
if (value != (char *) NULL)
resource_info.area_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case MemoryResource:
{
resource_info.memory_limit=limit;
value=GetPolicyValue("memory");
if (value != (char *) NULL)
resource_info.memory_limit=MagickMin(limit,StringToSizeType(value,
100.0));
break;
}
case MapResource:
{
resource_info.map_limit=limit;
value=GetPolicyValue("map");
if (value != (char *) NULL)
resource_info.map_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case DiskResource:
{
resource_info.disk_limit=limit;
value=GetPolicyValue("disk");
if (value != (char *) NULL)
resource_info.disk_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case FileResource:
{
resource_info.file_limit=limit;
value=GetPolicyValue("file");
if (value != (char *) NULL)
resource_info.file_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
case ThreadResource:
{
resource_info.thread_limit=limit;
value=GetPolicyValue("thread");
if (value != (char *) NULL)
resource_info.thread_limit=MagickMin(limit,StringToSizeType(value,
100.0));
SetOpenMPMaximumThreads((int) resource_info.thread_limit);
break;
}
case TimeResource:
{
resource_info.time_limit=limit;
value=GetPolicyValue("time");
if (value != (char *) NULL)
resource_info.time_limit=MagickMin(limit,StringToSizeType(value,100.0));
break;
}
default:
break;
}
UnlockSemaphoreInfo(resource_semaphore);
return(MagickTrue);
}