| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % 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 1999-2010 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(2048)*1024*1024, |
| MagickULLConstant(1536)*1024*1024, |
| MagickULLConstant(8192)*1024*1024, |
| MagickResourceInfinity, |
| MagickULLConstant(768), |
| MagickULLConstant(8), |
| 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,MagickFalse, |
| resource_current); |
| (void) FormatMagickSize(resource_info.disk_limit,MagickFalse, |
| 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: %sB/%sB/%sB", |
| MagickOptionToMnemonic(MagickResourceOptions,(long) 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); |
| 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 |
| |
| char |
| *resource; |
| |
| int |
| c, |
| file; |
| |
| register char |
| *p; |
| |
| register long |
| 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 < TMP_MAX; i++) |
| { |
| /* |
| Get temporary pathname. |
| */ |
| (void) GetPathTemplate(path); |
| #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,8); |
| p=path+strlen(path)-8; |
| datum=GetStringInfoDatum(key); |
| for (i=0; i < 8; 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, |
| RelinquishMagickMemory,DestroyTemporaryResources); |
| UnlockSemaphoreInfo(resource_semaphore); |
| resource=ConstantString(path); |
| (void) AddValueToSplayTree(temporary_resources,resource,resource); |
| 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 % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickResource() 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) FormatMagickSize(resource_info.disk_limit,MagickFalse,disk_limit); |
| (void) CopyMagickString(time_limit,"unlimited",MaxTextExtent); |
| if (resource_info.time_limit != MagickResourceInfinity) |
| (void) FormatMagickString(time_limit,MaxTextExtent,"%lu",(unsigned long) |
| resource_info.time_limit); |
| (void) fprintf(file,"File Area Memory Map" |
| " Disk Thread Time\n"); |
| (void) fprintf(file,"--------------------------------------------------------" |
| "-----------------------\n"); |
| (void) fprintf(file,"%4lu %10sB %10sB %10sB %10sB %6lu %11s\n", |
| (unsigned long) resource_info.file_limit,area_limit,memory_limit,map_limit, |
| disk_limit,(unsigned long) 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,MagickFalse, |
| resource_current); |
| (void) FormatMagickSize(resource_info.disk_limit,MagickFalse, |
| 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: %sB/%sB/%sB", |
| MagickOptionToMnemonic(MagickResourceOptions,(long) 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 unsigned long MagickMax(const unsigned long x, |
| const unsigned long 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; |
| |
| long |
| files, |
| pages, |
| pagesize; |
| |
| MagickSizeType |
| memory; |
| |
| /* |
| Set Magick resource limits. |
| */ |
| AcquireSemaphoreInfo(&resource_semaphore); |
| pagesize=GetMagickPageSize(); |
| pages=(-1); |
| #if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_PHYS_PAGES) |
| pages=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,2UL*memory); |
| (void) SetMagickResourceLimit(MemoryResource,3UL*memory/2UL); |
| (void) SetMagickResourceLimit(MapResource,4UL*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=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=(long) resources.rlim_cur; |
| } |
| #endif |
| #if defined(MAGICKCORE_HAVE_GETDTABLESIZE) && defined(MAGICKCORE_POSIX_SUPPORT) |
| if (files < 0) |
| files=getdtablesize(); |
| #endif |
| if (files < 0) |
| files=64; |
| (void) SetMagickResourceLimit(FileResource,MagickMax((unsigned long) |
| (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) |
| { |
| SetOpenMPMaximumThreads(StringToUnsignedLong(limit)); |
| (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. |
| % |
| */ |
| MagickExport MagickBooleanType SetMagickResourceLimit(const ResourceType type, |
| const MagickSizeType limit) |
| { |
| if (resource_semaphore == (SemaphoreInfo *) NULL) |
| AcquireSemaphoreInfo(&resource_semaphore); |
| LockSemaphoreInfo(resource_semaphore); |
| switch (type) |
| { |
| case AreaResource: |
| { |
| resource_info.area_limit=limit; |
| break; |
| } |
| case MemoryResource: |
| { |
| resource_info.memory_limit=limit; |
| break; |
| } |
| case MapResource: |
| { |
| resource_info.map_limit=limit; |
| break; |
| } |
| case DiskResource: |
| { |
| resource_info.disk_limit=limit; |
| break; |
| } |
| case FileResource: |
| { |
| resource_info.file_limit=limit; |
| break; |
| } |
| case ThreadResource: |
| { |
| SetOpenMPMaximumThreads((unsigned long) limit); |
| resource_info.thread_limit=GetOpenMPMaximumThreads(); |
| break; |
| } |
| case TimeResource: |
| { |
| resource_info.time_limit=limit; |
| break; |
| } |
| default: |
| break; |
| } |
| UnlockSemaphoreInfo(resource_semaphore); |
| return(MagickTrue); |
| } |