Mercurial > hg > orthanc

annotate Plugins/Engine/SharedLibrary.cpp @ 976:6968356679c0 plugins

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
integration mainline->plugins
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 30 Jun 2014 14:55:43 +0200
parents f57802f8b4dc
children a13ccd93df28
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
884
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 * Orthanc - A Lightweight, RESTful DICOM Store
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
4 * Belgium
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
5 *
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 * This program is free software: you can redistribute it and/or
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * modify it under the terms of the GNU General Public License as
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
8 * published by the Free Software Foundation, either version 3 of the
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
9 * License, or (at your option) any later version.
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
10 *
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 * In addition, as a special exception, the copyright holders of this
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 * program give permission to link the code of its release with the
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
14 * that use the same license as the "OpenSSL" library), and distribute
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
15 * the linked executables. You must obey the GNU General Public License
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
16 * in all respects for all of the code used other than "OpenSSL". If you
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
17 * modify file(s) with this exception, you may extend this exception to
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
18 * your version of the file(s), but you are not obligated to do so. If
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
19 * you do not wish to do so, delete this exception statement from your
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20 * version. If you delete this exception statement from all source files
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21 * in the program, then also delete it here.
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 *
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 * This program is distributed in the hope that it will be useful, but
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 * General Public License for more details.
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 *
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28 * You should have received a copy of the GNU General Public License
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 **/
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
33 #include "SharedLibrary.h"
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
34
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
35 #include "../../Core/Toolbox.h"
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
36
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
37 #if defined(_WIN32)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
38 #include <windows.h>
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
39 #elif defined(__linux)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
40 #include <dlfcn.h>
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
41 #else
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
42 #error Support your platform here
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
43 #endif
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
44
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
45 #include <glog/logging.h>
884
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47 namespace Orthanc
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48 {
887
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 885
diff changeset
49 SharedLibrary::SharedLibrary(const std::string& path) :
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 885
diff changeset
50 path_(path),
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 885
diff changeset
51 handle_(NULL)
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
52 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
53 #if defined(_WIN32)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
54 handle_ = ::LoadLibraryA(path.c_str());
893
f57802f8b4dc plugins for windows
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 887
diff changeset
55 if (handle_ == NULL)
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
56 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
57 LOG(ERROR) << "LoadLibrary(" << path << ") failed: Error " << ::GetLastError();
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
58 throw OrthancException(ErrorCode_SharedLibrary);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
59 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
60
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
61 #elif defined(__linux)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
62 handle_ = ::dlopen(path.c_str(), RTLD_NOW);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
63 if (handle_ == NULL)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
64 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
65 std::string explanation;
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
66 const char *tmp = ::dlerror();
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
67 if (tmp)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
68 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
69 explanation = ": Error " + std::string(tmp);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
70 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
71
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
72 LOG(ERROR) << "dlopen(" << path << ") failed" << explanation;
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
73 throw OrthancException(ErrorCode_SharedLibrary);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
74 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
75
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
76 #else
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
77 #error Support your platform here
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
78 #endif
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
79 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
80
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
81 SharedLibrary::~SharedLibrary()
884
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
82 {
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
83 if (handle_)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
84 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
85 #if defined(_WIN32)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
86 ::FreeLibrary((HMODULE)handle_);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
87 #elif defined(__linux)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
88 ::dlclose(handle_);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
89 #else
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
90 #error Support your platform here
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
91 #endif
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
92 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
93 }
884
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
94
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
95
893
f57802f8b4dc plugins for windows
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 887
diff changeset
96 SharedLibrary::FunctionPointer SharedLibrary::GetFunctionInternal(const std::string& name)
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
97 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
98 if (!handle_)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
99 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
100 throw OrthancException(ErrorCode_InternalError);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
101 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
102
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
103 #if defined(_WIN32)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
104 return ::GetProcAddress((HMODULE)handle_, name.c_str());
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
105 #elif defined(__linux)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
106 return ::dlsym(handle_, name.c_str());
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
107 #else
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
108 #error Support your platform here
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
109 #endif
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
110 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
111
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
112
893
f57802f8b4dc plugins for windows
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 887
diff changeset
113 SharedLibrary::FunctionPointer SharedLibrary::GetFunction(const std::string& name)
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
114 {
893
f57802f8b4dc plugins for windows
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 887
diff changeset
115 SharedLibrary::FunctionPointer result = GetFunctionInternal(name);
885
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
116
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
117 if (result == NULL)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
118 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
119 LOG(ERROR) << "Shared library does not expose function \"" << name << "\"";
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
120 throw OrthancException(ErrorCode_SharedLibrary);
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
121 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
122 else
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
123 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
124 return result;
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
125 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
126 }
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
127
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
128
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
129 bool SharedLibrary::HasFunction(const std::string& name)
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
130 {
0570a8c859cb SharedLibrary class
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 884
diff changeset
131 return GetFunctionInternal(name) != NULL;
884
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
132 }
cd8a69aa4093 creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
133 }