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comparison Framework/Orthanc/Core/Logging.h @ 1:2dbe613f6c93

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add orthanc core
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 Oct 2016 15:39:01 +0200
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children 9220cf4a63d5
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0:351ab0da0150 1:2dbe613f6c93
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include <iostream>
36
37 namespace Orthanc
38 {
39 namespace Logging
40 {
41 void Initialize();
42
43 void Finalize();
44
45 void Reset();
46
47 void Flush();
48
49 void EnableInfoLevel(bool enabled);
50
51 void EnableTraceLevel(bool enabled);
52
53 void SetTargetFile(const std::string& path);
54
55 void SetTargetFolder(const std::string& path);
56
57 struct NullStream : public std::ostream
58 {
59 NullStream() :
60 std::ios(0),
61 std::ostream(0)
62 {
63 }
64
65 std::ostream& operator<< (const std::string& message)
66 {
67 return *this;
68 }
69
70 // This overload fixes build problems with Visual Studio 2015
71 std::ostream& operator<< (const char* message)
72 {
73 return *this;
74 }
75 };
76 }
77 }
78
79
80 #if ORTHANC_ENABLE_LOGGING != 1
81
82 # define LOG(level) ::Orthanc::Logging::NullStream()
83 # define VLOG(level) ::Orthanc::Logging::NullStream()
84
85 #else /* ORTHANC_ENABLE_LOGGING == 1 */
86
87 # include <boost/thread/mutex.hpp>
88 # define LOG(level) ::Orthanc::Logging::InternalLogger(#level, __FILE__, __LINE__)
89 # define VLOG(level) ::Orthanc::Logging::InternalLogger("TRACE", __FILE__, __LINE__)
90
91 namespace Orthanc
92 {
93 namespace Logging
94 {
95 class InternalLogger
96 {
97 private:
98 boost::mutex::scoped_lock lock_;
99 NullStream null_;
100 std::ostream* stream_;
101
102 public:
103 InternalLogger(const char* level,
104 const char* file,
105 int line);
106
107 ~InternalLogger();
108
109 std::ostream& operator<< (const std::string& message)
110 {
111 return (*stream_) << message;
112 }
113 };
114 }
115 }
116
117 #endif // ORTHANC_ENABLE_LOGGING