MagickCore 7.1.1
Convert, Edit, Or Compose Bitmap Images
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registry.c
1/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3% %
4% %
5% %
6% RRRR EEEEE GGG IIIII SSSSS TTTTT RRRR Y Y %
7% R R E G I SS T R R Y Y %
8% RRRR EEE G GGG I SSS T RRRR Y %
9% R R E G G I SS T R R Y %
10% R R EEEEE GGG IIIII SSSSS T R R Y %
11% %
12% %
13% MagickCore Registry Methods %
14% %
15% Software Design %
16% Cristy %
17% March 2000 %
18% %
19% %
20% Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization %
21% dedicated to making software imaging solutions freely available. %
22% %
23% You may not use this file except in compliance with the License. You may %
24% obtain a copy of the License at %
25% %
26% https://imagemagick.org/script/license.php %
27% %
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. %
33% %
34%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35%
36%
37%
38*/
39␌
40/*
41 Include declarations.
42*/
43#include "MagickCore/studio.h"
44#include "MagickCore/exception.h"
45#include "MagickCore/exception-private.h"
46#include "MagickCore/image.h"
47#include "MagickCore/list.h"
48#include "MagickCore/memory_.h"
49#include "MagickCore/memory-private.h"
50#include "MagickCore/registry.h"
51#include "MagickCore/registry-private.h"
52#include "MagickCore/splay-tree.h"
53#include "MagickCore/string_.h"
54#include "MagickCore/string-private.h"
55#include "MagickCore/timer-private.h"
56#include "MagickCore/utility.h"
57␌
58/*
59 Typedef declarations.
60*/
61typedef struct _RegistryInfo
62{
63 RegistryType
64 type;
65
66 void
67 *value;
68
69 size_t
70 signature;
71} RegistryInfo;
72␌
73/*
74 Static declarations.
75*/
76static SplayTreeInfo
77 *registry = (SplayTreeInfo *) NULL;
78
79static SemaphoreInfo
80 *registry_semaphore = (SemaphoreInfo *) NULL;
81␌
82/*
83%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
84% %
85% %
86% %
87% D e f i n e I m a g e R e g i s t r y %
88% %
89% %
90% %
91%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
92%
93% DefineImageRegistry() associates a key/value pair with the image registry.
94%
95% The format of the DefineImageRegistry method is:
96%
97% MagickBooleanType DefineImageRegistry(const RegistryType type,
98% const char *option,ExceptionInfo *exception)
99%
100% A description of each parameter follows:
101%
102% o type: the type.
103%
104% o option: the option.
105%
106% o exception: the exception.
107%
108*/
109MagickExport MagickBooleanType DefineImageRegistry(const RegistryType type,
110 const char *option,ExceptionInfo *exception)
111{
112 char
113 key[MagickPathExtent],
114 value[MagickPathExtent];
115
116 char
117 *p;
118
119 assert(option != (const char *) NULL);
120 (void) CopyMagickString(key,option,MagickPathExtent);
121 for (p=key; *p != '\0'; p++)
122 if (*p == '=')
123 break;
124 *value='\0';
125 if (*p == '=')
126 (void) CopyMagickString(value,p+1,MagickPathExtent);
127 *p='\0';
128 return(SetImageRegistry(type,key,value,exception));
129}
130␌
131/*
132%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
133% %
134% %
135% %
136% D e l e t e I m a g e R e g i s t r y %
137% %
138% %
139% %
140%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
141%
142% DeleteImageRegistry() deletes a key from the image registry.
143%
144% The format of the DeleteImageRegistry method is:
145%
146% MagickBooleanType DeleteImageRegistry(const char *key)
147%
148% A description of each parameter follows:
149%
150% o key: the registry.
151%
152*/
153MagickExport MagickBooleanType DeleteImageRegistry(const char *key)
154{
155 assert(key != (const char *) NULL);
156 if (IsEventLogging() != MagickFalse)
157 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",key);
158 if (registry == (void *) NULL)
159 return(MagickFalse);
160 return(DeleteNodeFromSplayTree(registry,key));
161}
162␌
163/*
164%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
165% %
166% %
167% %
168% G e t I m a g e R e g i s t r y %
169% %
170% %
171% %
172%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
173%
174% GetImageRegistry() returns a value associated with an image registry key.
175%
176% The format of the GetImageRegistry method is:
177%
178% void *GetImageRegistry(const RegistryType type,const char *key,
179% ExceptionInfo *exception)
180%
181% A description of each parameter follows:
182%
183% o type: the type.
184%
185% o key: the key.
186%
187% o exception: the exception.
188%
189*/
190MagickExport void *GetImageRegistry(const RegistryType type,const char *key,
191 ExceptionInfo *exception)
192{
193 void
194 *value;
195
196 RegistryInfo
197 *registry_info;
198
199 assert(key != (const char *) NULL);
200 if (IsEventLogging() != MagickFalse)
201 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",key);
202 if (registry == (void *) NULL)
203 return((void *) NULL);
204 registry_info=(RegistryInfo *) GetValueFromSplayTree(registry,key);
205 if (registry_info == (void *) NULL)
206 return((void *) NULL);
207 value=(void *) NULL;
208 switch (type)
209 {
210 case ImageRegistryType:
211 {
212 if (type == registry_info->type)
213 value=(void *) CloneImageList((Image *) registry_info->value,exception);
214 break;
215 }
216 case ImageInfoRegistryType:
217 {
218 if (type == registry_info->type)
219 value=(void *) CloneImageInfo((ImageInfo *) registry_info->value);
220 break;
221 }
222 case StringRegistryType:
223 {
224 switch (registry_info->type)
225 {
226 case ImageRegistryType:
227 {
228 value=(Image *) ConstantString(((Image *)
229 registry_info->value)->filename);
230 break;
231 }
232 case ImageInfoRegistryType:
233 {
234 value=(Image *) ConstantString(((ImageInfo *)
235 registry_info->value)->filename);
236 break;
237 }
238 case StringRegistryType:
239 {
240 value=(void *) ConstantString((char *) registry_info->value);
241 break;
242 }
243 default:
244 break;
245 }
246 break;
247 }
248 default:
249 break;
250 }
251 return(value);
252}
253␌
254/*
255%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
256% %
257% %
258% %
259% G e t N e x t I m a g e R e g i s t r y %
260% %
261% %
262% %
263%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
264%
265% GetNextImageRegistry() gets the next image registry value.
266%
267% The format of the GetNextImageRegistry method is:
268%
269% char *GetNextImageRegistry(void)
270%
271*/
272MagickExport char *GetNextImageRegistry(void)
273{
274 if (IsEventLogging() != MagickFalse)
275 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
276 if (registry == (void *) NULL)
277 return((char *) NULL);
278 return((char *) GetNextKeyInSplayTree(registry));
279}
280␌
281/*
282%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
283% %
284% %
285% %
286+ R e g i s t r y C o m p o n e n t G e n e s i s %
287% %
288% %
289% %
290%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
291%
292% RegistryComponentGenesis() instantiates the registry component.
293%
294% The format of the RegistryComponentGenesis method is:
295%
296% MagickBooleanType RegistryComponentGenesis(void)
297%
298*/
299MagickPrivate MagickBooleanType RegistryComponentGenesis(void)
300{
301 if (registry_semaphore == (SemaphoreInfo *) NULL)
302 registry_semaphore=AcquireSemaphoreInfo();
303 return(MagickTrue);
304}
305␌
306/*
307%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
308% %
309% %
310% %
311% R e g i s t r y C o m p o n e n t T e r m i n u s %
312% %
313% %
314% %
315%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
316%
317% RegistryComponentTerminus() destroys the registry component.
318%
319% The format of the DestroyDefines method is:
320%
321% void RegistryComponentTerminus(void)
322%
323*/
324MagickPrivate void RegistryComponentTerminus(void)
325{
326 if (registry_semaphore == (SemaphoreInfo *) NULL)
327 ActivateSemaphoreInfo(&registry_semaphore);
328 LockSemaphoreInfo(registry_semaphore);
329 if (IsEventLogging() != MagickFalse)
330 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
331 if (registry != (void *) NULL)
332 registry=DestroySplayTree(registry);
333 UnlockSemaphoreInfo(registry_semaphore);
334 RelinquishSemaphoreInfo(&registry_semaphore);
335}
336␌
337/*
338%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
339% %
340% %
341% %
342% R e m o v e I m a g e R e g i s t r y %
343% %
344% %
345% %
346%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
347%
348% RemoveImageRegistry() removes a key from the image registry and returns its
349% value.
350%
351% The format of the RemoveImageRegistry method is:
352%
353% void *RemoveImageRegistry(const char *key)
354%
355% A description of each parameter follows:
356%
357% o key: the registry.
358%
359*/
360MagickExport void *RemoveImageRegistry(const char *key)
361{
362 assert(key != (const char *) NULL);
363 if (IsEventLogging() != MagickFalse)
364 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",key);
365 if (registry == (void *) NULL)
366 return((void *) NULL);
367 return(RemoveNodeFromSplayTree(registry,key));
368}
369␌
370/*
371%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
372% %
373% %
374% %
375% R e s e t I m a g e R e g i s t r y I t e r a t o r %
376% %
377% %
378% %
379%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
380%
381% ResetImageRegistryIterator() resets the registry iterator. Use it in
382% conjunction with GetNextImageRegistry() to iterate over all the values
383% in the image registry.
384%
385% The format of the ResetImageRegistryIterator method is:
386%
387% ResetImageRegistryIterator(void)
388%
389*/
390MagickExport void ResetImageRegistryIterator(void)
391{
392 if (IsEventLogging() != MagickFalse)
393 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
394 if (registry == (void *) NULL)
395 return;
396 ResetSplayTreeIterator(registry);
397}
398␌
399/*
400%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
401% %
402% %
403% %
404% S e t I m a g e R e g i s t r y %
405% %
406% %
407% %
408%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
409%
410% SetImageRegistry() associates a value with an image registry key.
411%
412% The format of the SetImageRegistry method is:
413%
414% MagickBooleanType SetImageRegistry(const RegistryType type,
415% const char *key,const void *value,ExceptionInfo *exception)
416%
417% A description of each parameter follows:
418%
419% o type: the type.
420%
421% o key: the key.
422%
423% o value: the value.
424%
425% o exception: the exception.
426%
427*/
428
429static void *DestroyRegistryNode(void *registry_info)
430{
431 RegistryInfo
432 *p;
433
434 p=(RegistryInfo *) registry_info;
435 switch (p->type)
436 {
437 case StringRegistryType:
438 default:
439 {
440 p->value=RelinquishMagickMemory(p->value);
441 break;
442 }
443 case ImageRegistryType:
444 {
445 p->value=(void *) DestroyImageList((Image *) p->value);
446 break;
447 }
448 case ImageInfoRegistryType:
449 {
450 p->value=(void *) DestroyImageInfo((ImageInfo *) p->value);
451 break;
452 }
453 }
454 return(RelinquishMagickMemory(p));
455}
456
457MagickExport MagickBooleanType SetImageRegistry(const RegistryType type,
458 const char *key,const void *value,ExceptionInfo *exception)
459{
460 RegistryInfo
461 *registry_info;
462
463 void
464 *clone_value;
465
466 assert(key != (const char *) NULL);
467 if (IsEventLogging() != MagickFalse)
468 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",key);
469 if (value == (const void *) NULL)
470 return(MagickFalse);
471 clone_value=(void *) NULL;
472 switch (type)
473 {
474 case StringRegistryType:
475 default:
476 {
477 const char
478 *string;
479
480 string=(const char *) value;
481 if (LocaleCompare(key,"date:precision") == 0)
482 SetMagickDatePrecision((size_t) StringToInteger(string));
483 clone_value=(void *) ConstantString(string);
484 break;
485 }
486 case ImageRegistryType:
487 {
488 const Image
489 *image;
490
491 image=(const Image *) value;
492 if ((image == (const Image *) NULL) ||
493 (image->signature != MagickCoreSignature))
494 {
495 (void) ThrowMagickException(exception,GetMagickModule(),RegistryError,
496 "UnableToSetRegistry","%s",key);
497 return(MagickFalse);
498 }
499 clone_value=(void *) CloneImageList(image,exception);
500 break;
501 }
502 case ImageInfoRegistryType:
503 {
504 const ImageInfo
505 *image_info;
506
507 image_info=(const ImageInfo *) value;
508 if ((image_info == (const ImageInfo *) NULL) ||
509 (image_info->signature != MagickCoreSignature))
510 {
511 (void) ThrowMagickException(exception,GetMagickModule(),RegistryError,
512 "UnableToSetRegistry","%s",key);
513 return(MagickFalse);
514 }
515 clone_value=(void *) CloneImageInfo(image_info);
516 break;
517 }
518 }
519 if (clone_value == (void *) NULL)
520 return(MagickFalse);
521 registry_info=(RegistryInfo *) AcquireCriticalMemory(sizeof(*registry_info));
522 (void) memset(registry_info,0,sizeof(*registry_info));
523 registry_info->type=type;
524 registry_info->value=clone_value;
525 registry_info->signature=MagickCoreSignature;
526 if (registry == (SplayTreeInfo *) NULL)
527 {
528 if (registry_semaphore == (SemaphoreInfo *) NULL)
529 ActivateSemaphoreInfo(&registry_semaphore);
530 LockSemaphoreInfo(registry_semaphore);
531 if (registry == (SplayTreeInfo *) NULL)
532 registry=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
533 DestroyRegistryNode);
534 UnlockSemaphoreInfo(registry_semaphore);
535 }
536 return(AddValueToSplayTree(registry,ConstantString(key),registry_info));
537}
_ExceptionInfo
Definition exception.h:102
_ImageInfo
Definition image.h:359
_Image
Definition image.h:132
_RegistryInfo
Definition registry.c:62
_SplayTreeInfo
Definition splay-tree.c:84