| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % W W AAA N N DDDD % |
| % W W A A NN N D D % |
| % W W W AAAAA N N N D D % |
| % WW WW A A N NN D D % |
| % W W A A N N DDDD % |
| % % |
| % % |
| % MagickWand Support Methods % |
| % % |
| % Software Design % |
| % Cristy % |
| % May 2004 % |
| % % |
| % % |
| % Copyright 1999-2017 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 % |
| % % |
| % https://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 "MagickWand/studio.h" |
| #include "MagickWand/MagickWand.h" |
| #include "MagickWand/magick-wand-private.h" |
| #include "MagickWand/wand.h" |
| |
| static SplayTreeInfo |
| *wand_ids = (SplayTreeInfo *) NULL; |
| |
| static MagickBooleanType |
| instantiate_wand = MagickFalse; |
| |
| static SemaphoreInfo |
| *wand_semaphore = (SemaphoreInfo *) NULL; |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % A c q u i r e W a n d I d % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % AcquireWandId() returns a unique wand id. |
| % |
| % The format of the AcquireWandId() method is: |
| % |
| % size_t AcquireWandId() |
| % |
| */ |
| WandExport size_t AcquireWandId(void) |
| { |
| static size_t |
| id = 0; |
| |
| size_t |
| wand_id; |
| |
| if (wand_semaphore == (SemaphoreInfo *) NULL) |
| ActivateSemaphoreInfo(&wand_semaphore); |
| LockSemaphoreInfo(wand_semaphore); |
| if (wand_ids == (SplayTreeInfo *) NULL) |
| wand_ids=NewSplayTree((int (*)(const void *,const void *)) NULL, |
| (void *(*)(void *)) NULL,(void *(*)(void *)) NULL); |
| wand_id=id++; |
| (void) AddValueToSplayTree(wand_ids,(const void *) wand_id, |
| (const void *) wand_id); |
| instantiate_wand=MagickTrue; |
| UnlockSemaphoreInfo(wand_semaphore); |
| return(wand_id); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % D e s t r o y W a n d I d s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % DestroyWandIds() deallocates memory associated with the wand id's. |
| % |
| % The format of the DestroyWandIds() method is: |
| % |
| % void DestroyWandIds(void) |
| % |
| % A description of each parameter follows: |
| % |
| */ |
| WandExport void DestroyWandIds(void) |
| { |
| if (wand_semaphore == (SemaphoreInfo *) NULL) |
| ActivateSemaphoreInfo(&wand_semaphore); |
| LockSemaphoreInfo(wand_semaphore); |
| if (wand_ids != (SplayTreeInfo *) NULL) |
| wand_ids=DestroySplayTree(wand_ids); |
| instantiate_wand=MagickFalse; |
| UnlockSemaphoreInfo(wand_semaphore); |
| RelinquishSemaphoreInfo(&wand_semaphore); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e l i n q u i s h W a n d I d % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RelinquishWandId() relinquishes a unique wand id. |
| % |
| % The format of the RelinquishWandId() method is: |
| % |
| % void RelinquishWandId(const size_t *id) |
| % |
| % A description of each parameter follows: |
| % |
| % o id: a unique wand id. |
| % |
| */ |
| WandExport void RelinquishWandId(const size_t id) |
| { |
| LockSemaphoreInfo(wand_semaphore); |
| if (wand_ids != (SplayTreeInfo *) NULL) |
| (void) DeleteNodeFromSplayTree(wand_ids,(const void *) id); |
| UnlockSemaphoreInfo(wand_semaphore); |
| } |