1 /*
2   Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization
3   dedicated to making software imaging solutions freely available.
4 
5   You may not use this file except in compliance with the License.  You may
6   obtain a copy of the License at
7 
8     https://imagemagick.org/script/license.php
9 
10   Unless required by applicable law or agreed to in writing, software
11   distributed under the License is distributed on an "AS IS" BASIS,
12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   See the License for the specific language governing permissions and
14   limitations under the License.
15 
16   MagickCore delegates methods.
17 */
18 #ifndef MAGICKCORE_DELEGATE_H
19 #define MAGICKCORE_DELEGATE_H
20 
21 #if defined(__cplusplus) || defined(c_plusplus)
22 extern "C" {
23 #endif
24 
25 #include <stdarg.h>
26 #include "magick/semaphore.h"
27 
28 typedef struct _DelegateInfo
29 {
30   char
31     *path,
32     *decode,
33     *encode,
34     *commands;
35 
36   ssize_t
37     mode;
38 
39   MagickBooleanType
40     thread_support,
41     spawn,
42     stealth;
43 
44   struct _DelegateInfo
45     *previous,
46     *next;  /* deprecated, use GetDelegateInfoList() */
47 
48   size_t
49     signature;
50 
51   SemaphoreInfo
52     *semaphore;
53 } DelegateInfo;
54 
55 extern MagickExport char
56   *GetDelegateCommand(const ImageInfo *,Image *,const char *,const char *,
57     ExceptionInfo *),
58   **GetDelegateList(const char *,size_t *,ExceptionInfo *);
59 
60 extern MagickExport const char
61   *GetDelegateCommands(const DelegateInfo *);
62 
63 extern MagickExport const DelegateInfo
64   *GetDelegateInfo(const char *,const char *,ExceptionInfo *exception),
65   **GetDelegateInfoList(const char *,size_t *,ExceptionInfo *);
66 
67 extern MagickExport int
68   ExternalDelegateCommand(const MagickBooleanType,const MagickBooleanType,
69     const char *,char *,ExceptionInfo *);
70 
71 extern MagickExport ssize_t
72   GetDelegateMode(const DelegateInfo *);
73 
74 extern MagickExport MagickBooleanType
75   DelegateComponentGenesis(void),
76   GetDelegateThreadSupport(const DelegateInfo *),
77   InvokeDelegate(ImageInfo *,Image *,const char *,const char *,ExceptionInfo *),
78   ListDelegateInfo(FILE *,ExceptionInfo *);
79 
80 extern MagickExport void
81   DelegateComponentTerminus(void);
82 
83 #if defined(__cplusplus) || defined(c_plusplus)
84 }
85 #endif
86 
87 #endif
88