libopenraw
trace.hpp
1/*
2 * libopenraw - trace.h
3 *
4 * Copyright (C) 2006-2015 Hubert Figuiere
5 *
6 * This library is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation, either version 3 of
9 * the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library. If not, see
18 * <http://www.gnu.org/licenses/>.
19 */
20
21
22#ifndef OR_INTERNALS_TRACE_H_
23#define OR_INTERNALS_TRACE_H_
24
25#include <string>
26#include <vector>
27#include <algorithm>
28
29#include <libopenraw/debug.h>
30
31namespace Debug {
32
37void log(debug_level level, const char* fmt, ...)
38 __attribute__ ((format (printf, 2, 3)));
39
40
41#define LOGWARN(...) \
42 Debug::log(WARNING, ## __VA_ARGS__)
43
44#define LOGERR(...) \
45 Debug::log(ERROR, ## __VA_ARGS__)
46
47#define LOGDBG1(...) \
48 Debug::log(DEBUG1, ## __VA_ARGS__)
49
50#define LOGDBG2(...) \
51 Debug::log(DEBUG2, ## __VA_ARGS__)
52
54class Trace
55{
56public:
57 Trace(debug_level level)
58 : m_level(level)
59 {
60 }
61 Trace & operator<<(int i);
62 Trace & operator<<(const char * s);
63 Trace & operator<<(void *);
64 Trace & operator<<(const std::string & s);
65
66 template <class T>
67 Trace & operator<<(const std::vector<T> & v);
68
69 static void setDebugLevel(debug_level lvl);
70private:
71 friend void log(debug_level level, const char* fmt, ...);
72 static void print(int i);
73 static int debugLevel; // global debug level
74 int m_level;
75};
76
77
78template <class T>
79Trace & Trace::operator<<(const std::vector<T> & v)
80{
81 if (m_level <= debugLevel) {
82 std::for_each(v.cbegin(), v.cend(),
83 [](T a) {
84 print(a);
85 });
86 }
87 return *this;
88}
89
90}
91
92#endif
93/*
94 Local Variables:
95 mode:c++
96 c-file-style:"stroustrup"
97 c-file-offsets:((innamespace . 0))
98 tab-width:2
99 c-basic-offset:2
100 indent-tabs-mode:nil
101 fill-column:80
102 End:
103*/
friend void log(debug_level level, const char *fmt,...)
Definition trace.cpp:34