2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % RRRR EEEEE SSSSS OOO U U RRRR CCCC EEEEE %
7 % R R E SS O O U U R R C E %
8 % RRRR EEE SSS O O U U RRRR C EEE %
9 % R R E SS O O U U R R C E %
10 % R R EEEEE SSSSS OOO UUU R R CCCC EEEEE %
13 % Get/Set MagickCore Resources %
20 % Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
42 #include "MagickCore/studio.h"
43 #include "MagickCore/cache.h"
44 #include "MagickCore/configure.h"
45 #include "MagickCore/exception.h"
46 #include "MagickCore/exception-private.h"
47 #include "MagickCore/hashmap.h"
48 #include "MagickCore/log.h"
49 #include "MagickCore/image.h"
50 #include "MagickCore/memory_.h"
51 #include "MagickCore/option.h"
52 #include "MagickCore/policy.h"
53 #include "MagickCore/random_.h"
54 #include "MagickCore/registry.h"
55 #include "MagickCore/resource_.h"
56 #include "MagickCore/resource-private.h"
57 #include "MagickCore/semaphore.h"
58 #include "MagickCore/signature-private.h"
59 #include "MagickCore/string_.h"
60 #include "MagickCore/string-private.h"
61 #include "MagickCore/splay-tree.h"
62 #include "MagickCore/thread-private.h"
63 #include "MagickCore/token.h"
64 #include "MagickCore/utility.h"
65 #include "MagickCore/utility-private.h"
70 typedef struct _ResourceInfo
95 *random_info = (RandomInfo *) NULL;
100 MagickULLConstant(0),
101 MagickULLConstant(0),
102 MagickULLConstant(0),
103 MagickULLConstant(0),
104 MagickULLConstant(0),
105 MagickULLConstant(0),
106 MagickULLConstant(0),
107 MagickULLConstant(3072)*1024*1024,
108 MagickULLConstant(1536)*1024*1024,
109 MagickULLConstant(3072)*1024*1024,
110 MagickResourceInfinity,
111 MagickULLConstant(768),
112 MagickULLConstant(4),
113 MagickResourceInfinity
117 *resource_semaphore = (SemaphoreInfo *) NULL;
120 *temporary_resources = (SplayTreeInfo *) NULL;
123 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
127 % A c q u i r e M a g i c k R e s o u r c e %
131 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
133 % AcquireMagickResource() acquires resources of the specified type.
134 % MagickFalse is returned if the specified resource is exhausted otherwise
137 % The format of the AcquireMagickResource() method is:
139 % MagickBooleanType AcquireMagickResource(const ResourceType type,
140 % const MagickSizeType size)
142 % A description of each parameter follows:
144 % o type: the type of resource.
146 % o size: the number of bytes needed from for this resource.
149 MagickExport MagickBooleanType AcquireMagickResource(const ResourceType type,
150 const MagickSizeType size)
153 resource_current[MaxTextExtent],
154 resource_limit[MaxTextExtent],
155 resource_request[MaxTextExtent];
164 (void) FormatMagickSize(size,MagickFalse,resource_request);
165 if (resource_semaphore == (SemaphoreInfo *) NULL)
166 AcquireSemaphoreInfo(&resource_semaphore);
167 LockSemaphoreInfo(resource_semaphore);
172 resource_info.area=(MagickOffsetType) size;
173 limit=resource_info.area_limit;
174 status=(resource_info.area_limit == MagickResourceInfinity) ||
175 (size < limit) ? MagickTrue : MagickFalse;
176 (void) FormatMagickSize((MagickSizeType) resource_info.area,MagickFalse,
178 (void) FormatMagickSize(resource_info.area_limit,MagickFalse,
184 resource_info.memory+=size;
185 limit=resource_info.memory_limit;
186 status=(resource_info.memory_limit == MagickResourceInfinity) ||
187 ((MagickSizeType) resource_info.memory < limit) ?
188 MagickTrue : MagickFalse;
189 (void) FormatMagickSize((MagickSizeType) resource_info.memory,MagickTrue,
191 (void) FormatMagickSize(resource_info.memory_limit,MagickTrue,
197 resource_info.map+=size;
198 limit=resource_info.map_limit;
199 status=(resource_info.map_limit == MagickResourceInfinity) ||
200 ((MagickSizeType) resource_info.map < limit) ?
201 MagickTrue : MagickFalse;
202 (void) FormatMagickSize((MagickSizeType) resource_info.map,MagickTrue,
204 (void) FormatMagickSize(resource_info.map_limit,MagickTrue,
210 resource_info.disk+=size;
211 limit=resource_info.disk_limit;
212 status=(resource_info.disk_limit == MagickResourceInfinity) ||
213 ((MagickSizeType) resource_info.disk < limit) ?
214 MagickTrue : MagickFalse;
215 (void) FormatMagickSize((MagickSizeType) resource_info.disk,MagickTrue,
217 (void) FormatMagickSize(resource_info.disk_limit,MagickTrue,
223 resource_info.file+=size;
224 limit=resource_info.file_limit;
225 status=(resource_info.file_limit == MagickResourceInfinity) ||
226 ((MagickSizeType) resource_info.file < limit) ?
227 MagickTrue : MagickFalse;
228 (void) FormatMagickSize((MagickSizeType) resource_info.file,MagickFalse,
230 (void) FormatMagickSize((MagickSizeType) resource_info.file_limit,
231 MagickFalse,resource_limit);
236 limit=resource_info.thread_limit;
237 status=(resource_info.thread_limit == MagickResourceInfinity) ||
238 ((MagickSizeType) resource_info.thread < limit) ?
239 MagickTrue : MagickFalse;
240 (void) FormatMagickSize((MagickSizeType) resource_info.thread,MagickFalse,
242 (void) FormatMagickSize((MagickSizeType) resource_info.thread_limit,
243 MagickFalse,resource_limit);
248 resource_info.time+=size;
249 limit=resource_info.time_limit;
250 status=(resource_info.time_limit == MagickResourceInfinity) ||
251 ((MagickSizeType) resource_info.time < limit) ?
252 MagickTrue : MagickFalse;
253 (void) FormatMagickSize((MagickSizeType) resource_info.time,MagickFalse,
255 (void) FormatMagickSize((MagickSizeType) resource_info.time_limit,
256 MagickFalse,resource_limit);
262 UnlockSemaphoreInfo(resource_semaphore);
263 (void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s: %s/%s/%s",
264 CommandOptionToMnemonic(MagickResourceOptions,(ssize_t) type),
265 resource_request,resource_current,resource_limit);
270 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
274 + 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 %
278 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
280 % AsynchronousResourceComponentTerminus() destroys the resource environment.
281 % It differs from ResourceComponentTerminus() in that it can be called from a
282 % asynchronous signal handler.
284 % The format of the ResourceComponentTerminus() method is:
286 % ResourceComponentTerminus(void)
289 MagickPrivate void AsynchronousResourceComponentTerminus(void)
294 if (temporary_resources == (SplayTreeInfo *) NULL)
297 Remove any lingering temporary files.
299 ResetSplayTreeIterator(temporary_resources);
300 path=(const char *) GetNextKeyInSplayTree(temporary_resources);
301 while (path != (const char *) NULL)
303 (void) remove_utf8(path);
304 path=(const char *) GetNextKeyInSplayTree(temporary_resources);
309 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
313 % 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 %
317 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
319 % AcquireUniqueFileResource() returns a unique file name, and returns a file
320 % descriptor for the file open for reading and writing.
322 % The format of the AcquireUniqueFileResource() method is:
324 % int AcquireUniqueFileResource(char *path)
326 % A description of each parameter follows:
328 % o path: Specifies a pointer to an array of characters. The unique path
329 % name is returned in this array.
333 static void *DestroyTemporaryResources(void *temporary_resource)
335 (void) remove_utf8((char *) temporary_resource);
336 temporary_resource=DestroyString((char *) temporary_resource);
337 return((void *) NULL);
340 static MagickBooleanType GetPathTemplate(char *path)
357 (void) CopyMagickString(path,"magick-XXXXXXXX",MaxTextExtent);
358 exception=AcquireExceptionInfo();
359 directory=(char *) GetImageRegistry(StringRegistryType,"temporary-path",
361 exception=DestroyExceptionInfo(exception);
362 if (directory == (char *) NULL)
363 directory=GetEnvironmentValue("MAGICK_TEMPORARY_PATH");
364 if (directory == (char *) NULL)
365 directory=GetEnvironmentValue("MAGICK_TMPDIR");
366 if (directory == (char *) NULL)
367 directory=GetPolicyValue("temporary-path");
368 if (directory == (char *) NULL)
369 directory=GetEnvironmentValue("TMPDIR");
370 #if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__OS2__)
371 if (directory == (char *) NULL)
372 directory=GetEnvironmentValue("TMP");
373 if (directory == (char *) NULL)
374 directory=GetEnvironmentValue("TEMP");
377 if (directory == (char *) NULL)
378 directory=GetEnvironmentValue("MTMPDIR");
380 #if defined(P_tmpdir)
381 if (directory == (char *) NULL)
382 directory=ConstantString(P_tmpdir);
384 if (directory == (char *) NULL)
386 if (strlen(directory) > (MaxTextExtent-15))
388 directory=DestroyString(directory);
391 status=GetPathAttributes(directory,&attributes);
392 if ((status == MagickFalse) || !S_ISDIR(attributes.st_mode))
394 directory=DestroyString(directory);
397 if (directory[strlen(directory)-1] == *DirectorySeparator)
398 (void) FormatLocaleString(path,MaxTextExtent,"%smagick-XXXXXXXX",directory);
400 (void) FormatLocaleString(path,MaxTextExtent,"%s%smagick-XXXXXXXX",
401 directory,DirectorySeparator);
402 directory=DestroyString(directory);
403 if (*DirectorySeparator != '/')
404 for (p=path; *p != '\0'; p++)
405 if (*p == *DirectorySeparator)
410 MagickExport int AcquireUniqueFileResource(char *path)
412 #if !defined(O_NOFOLLOW)
415 #if !defined(TMP_MAX)
416 # define TMP_MAX 238328
430 portable_filename[65] =
431 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-";
439 assert(path != (char *) NULL);
440 (void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s",path);
441 if (random_info == (RandomInfo *) NULL)
442 random_info=AcquireRandomInfo();
444 for (i=0; i < (ssize_t) TMP_MAX; i++)
447 Get temporary pathname.
449 (void) GetPathTemplate(path);
450 key=GetRandomKey(random_info,2);
451 p=path+strlen(path)-8;
452 datum=GetStringInfoDatum(key);
453 for (i=0; i < (ssize_t) GetStringInfoLength(key); i++)
455 c=(int) (datum[i] & 0x3f);
456 *p++=portable_filename[c];
458 key=DestroyStringInfo(key);
459 #if defined(MAGICKCORE_HAVE_MKSTEMP)
462 setmode(file,O_BINARY);
467 key=GetRandomKey(random_info,6);
468 p=path+strlen(path)-6;
469 datum=GetStringInfoDatum(key);
470 for (i=0; i < (ssize_t) GetStringInfoLength(key); i++)
472 c=(int) (datum[i] & 0x3f);
473 *p++=portable_filename[c];
475 key=DestroyStringInfo(key);
476 file=open_utf8(path,O_RDWR | O_CREAT | O_EXCL | O_BINARY | O_NOFOLLOW,S_MODE);
477 if ((file >= 0) || (errno != EEXIST))
480 (void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s",path);
483 if (resource_semaphore == (SemaphoreInfo *) NULL)
484 AcquireSemaphoreInfo(&resource_semaphore);
485 LockSemaphoreInfo(resource_semaphore);
486 if (temporary_resources == (SplayTreeInfo *) NULL)
487 temporary_resources=NewSplayTree(CompareSplayTreeString,
488 DestroyTemporaryResources,(void *(*)(void *)) NULL);
489 UnlockSemaphoreInfo(resource_semaphore);
490 (void) AddValueToSplayTree(temporary_resources,ConstantString(path),
491 (const void *) NULL);
496 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
500 % G e t M a g i c k R e s o u r c e %
504 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
506 % GetMagickResource() returns the specified resource.
508 % The format of the GetMagickResource() method is:
510 % MagickSizeType GetMagickResource(const ResourceType type)
512 % A description of each parameter follows:
514 % o type: the type of resource.
517 MagickExport MagickSizeType GetMagickResource(const ResourceType type)
523 LockSemaphoreInfo(resource_semaphore);
528 resource=(MagickSizeType) resource_info.area;
533 resource=(MagickSizeType) resource_info.memory;
538 resource=(MagickSizeType) resource_info.map;
543 resource=(MagickSizeType) resource_info.disk;
548 resource=(MagickSizeType) resource_info.file;
553 resource=(MagickSizeType) resource_info.thread;
558 resource=(MagickSizeType) resource_info.time;
564 UnlockSemaphoreInfo(resource_semaphore);
569 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
573 % G e t M a g i c k R e s o u r c e L i m i t %
577 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
579 % GetMagickResourceLimit() returns the specified resource limit.
581 % The format of the GetMagickResourceLimit() method is:
583 % MagickSizeType GetMagickResourceLimit(const ResourceType type)
585 % A description of each parameter follows:
587 % o type: the type of resource.
590 MagickExport MagickSizeType GetMagickResourceLimit(const ResourceType type)
596 if (resource_semaphore == (SemaphoreInfo *) NULL)
597 AcquireSemaphoreInfo(&resource_semaphore);
598 LockSemaphoreInfo(resource_semaphore);
603 resource=resource_info.area_limit;
608 resource=resource_info.memory_limit;
613 resource=resource_info.map_limit;
618 resource=resource_info.disk_limit;
623 resource=resource_info.file_limit;
628 resource=resource_info.thread_limit;
633 resource=resource_info.time_limit;
639 UnlockSemaphoreInfo(resource_semaphore);
644 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
648 % L i s t M a g i c k R e s o u r c e I n f o %
652 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
654 % ListMagickResourceInfo() lists the resource info to a file.
656 % The format of the ListMagickResourceInfo method is:
658 % MagickBooleanType ListMagickResourceInfo(FILE *file,
659 % ExceptionInfo *exception)
661 % A description of each parameter follows.
663 % o file: An pointer to a FILE.
665 % o exception: return any errors or warnings in this structure.
668 MagickExport MagickBooleanType ListMagickResourceInfo(FILE *file,
669 ExceptionInfo *magick_unused(exception))
672 area_limit[MaxTextExtent],
673 disk_limit[MaxTextExtent],
674 map_limit[MaxTextExtent],
675 memory_limit[MaxTextExtent],
676 time_limit[MaxTextExtent];
678 if (file == (const FILE *) NULL)
680 if (resource_semaphore == (SemaphoreInfo *) NULL)
681 AcquireSemaphoreInfo(&resource_semaphore);
682 LockSemaphoreInfo(resource_semaphore);
683 (void) FormatMagickSize(resource_info.area_limit,MagickFalse,area_limit);
684 (void) FormatMagickSize(resource_info.memory_limit,MagickTrue,memory_limit);
685 (void) FormatMagickSize(resource_info.map_limit,MagickTrue,map_limit);
686 (void) CopyMagickString(disk_limit,"unlimited",MaxTextExtent);
687 if (resource_info.disk_limit != MagickResourceInfinity)
688 (void) FormatMagickSize(resource_info.disk_limit,MagickTrue,disk_limit);
689 (void) CopyMagickString(time_limit,"unlimited",MaxTextExtent);
690 if (resource_info.time_limit != MagickResourceInfinity)
691 (void) FormatLocaleString(time_limit,MaxTextExtent,"%.20g",(double)
692 ((MagickOffsetType) resource_info.time_limit));
693 (void) FormatLocaleFile(file,"File Area Memory Map"
694 " Disk Thread Time\n");
695 (void) FormatLocaleFile(file,
696 "--------------------------------------------------------"
697 "-----------------------\n");
698 (void) FormatLocaleFile(file,"%4g %10s %10s %10s %10s %6g %11s\n",
699 (double) ((MagickOffsetType) resource_info.file_limit),area_limit,
700 memory_limit,map_limit,disk_limit,(double) ((MagickOffsetType)
701 resource_info.thread_limit),time_limit);
703 UnlockSemaphoreInfo(resource_semaphore);
708 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
712 % R e l i n q u i s h M a g i c k R e s o u r c e %
716 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
718 % RelinquishMagickResource() relinquishes resources of the specified type.
720 % The format of the RelinquishMagickResource() method is:
722 % void RelinquishMagickResource(const ResourceType type,
723 % const MagickSizeType size)
725 % A description of each parameter follows:
727 % o type: the type of resource.
729 % o size: the size of the resource.
732 MagickExport void RelinquishMagickResource(const ResourceType type,
733 const MagickSizeType size)
736 resource_current[MaxTextExtent],
737 resource_limit[MaxTextExtent],
738 resource_request[MaxTextExtent];
740 (void) FormatMagickSize(size,MagickFalse,resource_request);
741 if (resource_semaphore == (SemaphoreInfo *) NULL)
742 AcquireSemaphoreInfo(&resource_semaphore);
743 LockSemaphoreInfo(resource_semaphore);
748 resource_info.area=(MagickOffsetType) size;
749 (void) FormatMagickSize((MagickSizeType) resource_info.area,MagickFalse,
751 (void) FormatMagickSize(resource_info.area_limit,MagickFalse,
757 resource_info.memory-=size;
758 (void) FormatMagickSize((MagickSizeType) resource_info.memory,
759 MagickTrue,resource_current);
760 (void) FormatMagickSize(resource_info.memory_limit,MagickTrue,
766 resource_info.map-=size;
767 (void) FormatMagickSize((MagickSizeType) resource_info.map,MagickTrue,
769 (void) FormatMagickSize(resource_info.map_limit,MagickTrue,
775 resource_info.disk-=size;
776 (void) FormatMagickSize((MagickSizeType) resource_info.disk,MagickTrue,
778 (void) FormatMagickSize(resource_info.disk_limit,MagickTrue,
784 resource_info.file-=size;
785 (void) FormatMagickSize((MagickSizeType) resource_info.file,MagickFalse,
787 (void) FormatMagickSize((MagickSizeType) resource_info.file_limit,
788 MagickFalse,resource_limit);
793 (void) FormatMagickSize((MagickSizeType) resource_info.thread,MagickFalse,
795 (void) FormatMagickSize((MagickSizeType) resource_info.thread_limit,
796 MagickFalse,resource_limit);
801 resource_info.time-=size;
802 (void) FormatMagickSize((MagickSizeType) resource_info.time,MagickFalse,
804 (void) FormatMagickSize((MagickSizeType) resource_info.time_limit,
805 MagickFalse,resource_limit);
811 UnlockSemaphoreInfo(resource_semaphore);
812 (void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s: %s/%s/%s",
813 CommandOptionToMnemonic(MagickResourceOptions,(ssize_t) type),
814 resource_request,resource_current,resource_limit);
818 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
822 % 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 %
826 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
828 % RelinquishUniqueFileResource() relinquishes a unique file resource.
830 % The format of the RelinquishUniqueFileResource() method is:
832 % MagickBooleanType RelinquishUniqueFileResource(const char *path)
834 % A description of each parameter follows:
836 % o name: the name of the temporary resource.
839 MagickExport MagickBooleanType RelinquishUniqueFileResource(const char *path)
842 cache_path[MaxTextExtent];
844 assert(path != (const char *) NULL);
845 (void) LogMagickEvent(ResourceEvent,GetMagickModule(),"%s",path);
846 if (temporary_resources != (SplayTreeInfo *) NULL)
851 ResetSplayTreeIterator(temporary_resources);
852 p=(char *) GetNextKeyInSplayTree(temporary_resources);
853 while (p != (char *) NULL)
855 if (LocaleCompare(p,path) == 0)
857 p=(char *) GetNextKeyInSplayTree(temporary_resources);
859 if (p != (char *) NULL)
860 (void) DeleteNodeFromSplayTree(temporary_resources,p);
862 (void) CopyMagickString(cache_path,path,MaxTextExtent);
863 AppendImageFormat("cache",cache_path);
864 (void) remove_utf8(cache_path);
865 return(remove_utf8(path) == 0 ? MagickTrue : MagickFalse);
869 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
873 + R e s o u r c e C o m p o n e n t G e n e s i s %
877 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
879 % ResourceComponentGenesis() instantiates the resource component.
881 % The format of the ResourceComponentGenesis method is:
883 % MagickBooleanType ResourceComponentGenesis(void)
887 static inline size_t MagickMax(const size_t x,const size_t y)
894 static inline MagickSizeType StringToSizeType(const char *string,
895 const double interval)
900 value=SiPrefixToDoubleInterval(string,interval);
901 if (value >= (double) MagickULLConstant(~0))
902 return(MagickULLConstant(~0));
903 return((MagickSizeType) value);
906 MagickPrivate MagickBooleanType ResourceComponentGenesis(void)
920 Set Magick resource limits.
922 AcquireSemaphoreInfo(&resource_semaphore);
923 pagesize=GetMagickPageSize();
925 #if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_PHYS_PAGES)
926 pages=(ssize_t) sysconf(_SC_PHYS_PAGES);
928 memory=(MagickSizeType) pages*pagesize;
929 if ((pagesize <= 0) || (pages <= 0))
930 memory=2048UL*1024UL*1024UL;
931 #if defined(PixelCacheThreshold)
932 memory=PixelCacheThreshold;
934 (void) SetMagickResourceLimit(AreaResource,2*memory);
935 (void) SetMagickResourceLimit(MemoryResource,memory);
936 (void) SetMagickResourceLimit(MapResource,2*memory);
937 limit=GetEnvironmentValue("MAGICK_AREA_LIMIT");
938 if (limit == (char *) NULL)
939 limit=GetPolicyValue("area");
940 if (limit != (char *) NULL)
942 (void) SetMagickResourceLimit(AreaResource,StringToSizeType(limit,100.0));
943 limit=DestroyString(limit);
945 limit=GetEnvironmentValue("MAGICK_MEMORY_LIMIT");
946 if (limit == (char *) NULL)
947 limit=GetPolicyValue("memory");
948 if (limit != (char *) NULL)
950 (void) SetMagickResourceLimit(MemoryResource,
951 StringToSizeType(limit,100.0));
952 limit=DestroyString(limit);
954 limit=GetEnvironmentValue("MAGICK_MAP_LIMIT");
955 if (limit == (char *) NULL)
956 limit=GetPolicyValue("map");
957 if (limit != (char *) NULL)
959 (void) SetMagickResourceLimit(MapResource,StringToSizeType(limit,100.0));
960 limit=DestroyString(limit);
962 limit=GetEnvironmentValue("MAGICK_DISK_LIMIT");
963 if (limit == (char *) NULL)
964 limit=GetPolicyValue("disk");
965 if (limit != (char *) NULL)
967 (void) SetMagickResourceLimit(DiskResource,StringToSizeType(limit,100.0));
968 limit=DestroyString(limit);
971 #if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_OPEN_MAX)
972 files=(ssize_t) sysconf(_SC_OPEN_MAX);
974 #if defined(MAGICKCORE_HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)
980 if (getrlimit(RLIMIT_NOFILE,&resources) != -1)
981 files=(ssize_t) resources.rlim_cur;
984 #if defined(MAGICKCORE_HAVE_GETDTABLESIZE) && defined(MAGICKCORE_POSIX_SUPPORT)
986 files=(ssize_t) getdtablesize();
990 (void) SetMagickResourceLimit(FileResource,MagickMax((size_t)
992 limit=GetEnvironmentValue("MAGICK_FILE_LIMIT");
993 if (limit == (char *) NULL)
994 limit=GetPolicyValue("file");
995 if (limit != (char *) NULL)
997 (void) SetMagickResourceLimit(FileResource,StringToSizeType(limit,
999 limit=DestroyString(limit);
1001 (void) SetMagickResourceLimit(ThreadResource,GetOpenMPMaximumThreads());
1002 limit=GetEnvironmentValue("MAGICK_THREAD_LIMIT");
1003 if (limit == (char *) NULL)
1004 limit=GetPolicyValue("thread");
1005 if (limit != (char *) NULL)
1007 (void) SetMagickResourceLimit(ThreadResource,StringToSizeType(limit,
1009 limit=DestroyString(limit);
1011 limit=GetEnvironmentValue("MAGICK_TIME_LIMIT");
1012 if (limit == (char *) NULL)
1013 limit=GetPolicyValue("time");
1014 if (limit != (char *) NULL)
1016 (void) SetMagickResourceLimit(TimeResource,StringToSizeType(limit,100.0));
1017 limit=DestroyString(limit);
1023 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1027 + 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 %
1031 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1033 % ResourceComponentTerminus() destroys the resource component.
1035 % The format of the ResourceComponentTerminus() method is:
1037 % ResourceComponentTerminus(void)
1040 MagickPrivate void ResourceComponentTerminus(void)
1042 if (resource_semaphore == (SemaphoreInfo *) NULL)
1043 AcquireSemaphoreInfo(&resource_semaphore);
1044 LockSemaphoreInfo(resource_semaphore);
1045 if (temporary_resources != (SplayTreeInfo *) NULL)
1046 temporary_resources=DestroySplayTree(temporary_resources);
1047 if (random_info != (RandomInfo *) NULL)
1048 random_info=DestroyRandomInfo(random_info);
1049 UnlockSemaphoreInfo(resource_semaphore);
1050 DestroySemaphoreInfo(&resource_semaphore);
1054 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1058 % S e t M a g i c k R e s o u r c e L i m i t %
1062 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1064 % SetMagickResourceLimit() sets the limit for a particular resource.
1066 % The format of the SetMagickResourceLimit() method is:
1068 % MagickBooleanType SetMagickResourceLimit(const ResourceType type,
1069 % const MagickSizeType limit)
1071 % A description of each parameter follows:
1073 % o type: the type of resource.
1075 % o limit: the maximum limit for the resource.
1079 static inline MagickSizeType MagickMin(const MagickSizeType x,
1080 const MagickSizeType y)
1087 MagickExport MagickBooleanType SetMagickResourceLimit(const ResourceType type,
1088 const MagickSizeType limit)
1093 if (resource_semaphore == (SemaphoreInfo *) NULL)
1094 AcquireSemaphoreInfo(&resource_semaphore);
1095 LockSemaphoreInfo(resource_semaphore);
1096 value=(char *) NULL;
1101 resource_info.area_limit=limit;
1102 value=GetPolicyValue("area");
1103 if (value != (char *) NULL)
1104 resource_info.area_limit=MagickMin(limit,StringToSizeType(value,100.0));
1107 case MemoryResource:
1109 resource_info.memory_limit=limit;
1110 value=GetPolicyValue("memory");
1111 if (value != (char *) NULL)
1112 resource_info.memory_limit=MagickMin(limit,StringToSizeType(value,
1118 resource_info.map_limit=limit;
1119 value=GetPolicyValue("map");
1120 if (value != (char *) NULL)
1121 resource_info.map_limit=MagickMin(limit,StringToSizeType(value,100.0));
1126 resource_info.disk_limit=limit;
1127 value=GetPolicyValue("disk");
1128 if (value != (char *) NULL)
1129 resource_info.disk_limit=MagickMin(limit,StringToSizeType(value,100.0));
1134 resource_info.file_limit=limit;
1135 value=GetPolicyValue("file");
1136 if (value != (char *) NULL)
1137 resource_info.file_limit=MagickMin(limit,StringToSizeType(value,100.0));
1140 case ThreadResource:
1142 resource_info.thread_limit=limit;
1143 value=GetPolicyValue("thread");
1144 if (value != (char *) NULL)
1145 resource_info.thread_limit=MagickMin(limit,StringToSizeType(value,
1147 if (resource_info.thread_limit > GetOpenMPMaximumThreads())
1148 resource_info.thread_limit=GetOpenMPMaximumThreads();
1153 resource_info.time_limit=limit;
1154 value=GetPolicyValue("time");
1155 if (value != (char *) NULL)
1156 resource_info.time_limit=MagickMin(limit,StringToSizeType(value,100.0));
1162 if (value != (char *) NULL)
1163 value=DestroyString(value);
1164 UnlockSemaphoreInfo(resource_semaphore);