Line data Source code
1 : /*
2 : * Copyright (C) 2004-2025 Savoir-faire Linux Inc.
3 : *
4 : * This program is free software: you can redistribute it and/or modify
5 : * it under the terms of the GNU General Public License as published by
6 : * the Free Software Foundation, either version 3 of the License, or
7 : * (at your option) any later version.
8 : *
9 : * This program is distributed in the hope that it will be useful,
10 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 : * GNU General Public License for more details.
13 : *
14 : * You should have received a copy of the GNU General Public License
15 : * along with this program. If not, see <https://www.gnu.org/licenses/>.
16 : */
17 : #pragma once
18 :
19 : #include "jami/def.h"
20 :
21 : // #define __STDC_FORMAT_MACROS 1
22 : #include <fmt/core.h>
23 : #include <fmt/format.h>
24 : #include <fmt/chrono.h>
25 : #include <fmt/compile.h>
26 : #include <fmt/printf.h>
27 : #if __has_include(<fmt/std.h>)
28 : #include <fmt/std.h>
29 : #else
30 : #include <fmt/ostream.h>
31 : #endif
32 :
33 : #include <opendht/logger.h>
34 : #include <cinttypes> // for PRIx64
35 : #include <cstdarg>
36 :
37 : #include <atomic>
38 : #include <sstream>
39 : #include <string>
40 : #include "string_utils.h" // to_string
41 :
42 : #ifdef __ANDROID__
43 :
44 : #include <android/log.h>
45 : #define LOG_ERR ANDROID_LOG_ERROR
46 : #define LOG_WARNING ANDROID_LOG_WARN
47 : #define LOG_INFO ANDROID_LOG_INFO
48 : #define LOG_DEBUG ANDROID_LOG_DEBUG
49 :
50 : #elif defined(_WIN32)
51 :
52 : #include "winsyslog.h"
53 : #define LOG_ERR EVENTLOG_ERROR_TYPE
54 : #define LOG_WARNING EVENTLOG_WARNING_TYPE
55 : #define LOG_INFO EVENTLOG_INFORMATION_TYPE
56 : #define LOG_DEBUG EVENTLOG_SUCCESS
57 :
58 : #else
59 :
60 : #include <syslog.h> // Defines LOG_XXXX
61 :
62 : #endif /* __ANDROID__ / _WIN32 */
63 :
64 : #if defined(_WIN32) && !defined(_MSC_VER)
65 : #define PRINTF_ATTRIBUTE(a, b) __attribute__((format(gnu_printf, a, b)))
66 : #elif defined(__GNUC__)
67 : #define PRINTF_ATTRIBUTE(a, b) __attribute__((format(printf, a, b)))
68 : #else
69 : #define PRINTF_ATTRIBUTE(a, b)
70 : #endif
71 :
72 : namespace jami {
73 :
74 : /**
75 : * Thread-safe function to print the stringified contents of errno
76 : */
77 : void strErr();
78 :
79 : ///
80 : /// Level-driven logging class that support printf and C++ stream logging fashions.
81 : ///
82 : class Logger
83 : {
84 : public:
85 : class Handler;
86 : struct Msg;
87 :
88 460 : Logger(int level, const char* file, int line, bool linefeed)
89 460 : : level_ {level}
90 460 : , file_ {file}
91 460 : , line_ {line}
92 460 : , linefeed_ {linefeed}
93 460 : {}
94 :
95 : Logger() = delete;
96 : Logger(const Logger&) = delete;
97 : Logger(Logger&&) = default;
98 :
99 460 : ~Logger() { log(level_, file_, line_, linefeed_, "%s", os_.str().c_str()); }
100 :
101 : template<typename T>
102 1686 : inline Logger& operator<<(const T& value)
103 : {
104 1686 : os_ << value;
105 1686 : return *this;
106 : }
107 :
108 105202 : constexpr static int dhtLevel(dht::log::LogLevel level)
109 : {
110 105202 : switch (level) {
111 95576 : case dht::log::LogLevel::debug:
112 95576 : return LOG_DEBUG;
113 4424 : case dht::log::LogLevel::warning:
114 4424 : return LOG_WARNING;
115 5202 : case dht::log::LogLevel::error:
116 : default:
117 5202 : return LOG_ERR;
118 : }
119 : }
120 :
121 : LIBJAMI_PUBLIC
122 : static void write(int level, const char* file, int line, bool linefeed, std::string&& message);
123 :
124 105210 : static inline void writeDht(dht::log::LogLevel level, std::string&& message)
125 : {
126 105210 : write(dhtLevel(level), nullptr, 0, true, std::move(message));
127 105239 : }
128 2312 : static inline std::shared_ptr<dht::log::Logger> dhtLogger()
129 : {
130 4624 : return std::make_shared<dht::Logger>(&Logger::writeDht);
131 : }
132 :
133 : ///
134 : /// Printf fashion logging.
135 : ///
136 : /// Example: JAMI_DBG("%s", "Hello, World!")
137 : ///
138 : LIBJAMI_PUBLIC
139 : static void log(int level, const char* file, int line, bool linefeed, const char* const fmt, ...)
140 : PRINTF_ATTRIBUTE(5, 6);
141 :
142 : ///
143 : /// Printf fashion logging (using va_list parameters)
144 : ///
145 : LIBJAMI_PUBLIC
146 : static void vlog(int level, const char* file, int line, bool linefeed, const char* fmt, va_list);
147 :
148 : static void setConsoleLog(bool enable);
149 : static void setSysLog(bool enable);
150 : static void setMonitorLog(bool enable);
151 : static void setFileLog(const std::string& path);
152 :
153 : static void setDebugMode(bool enable);
154 : static bool debugEnabled();
155 :
156 : static void fini();
157 :
158 : ///
159 : /// Stream fashion logging.
160 : ///
161 : /// Example: JAMI_DBG() << "Hello, World!"
162 : ///
163 460 : static Logger log(int level, const char* file, int line, bool linefeed) { return {level, file, line, linefeed}; }
164 :
165 : private:
166 : int level_; ///< LOG_XXXX values
167 : const char* const file_; ///< contextual filename (printed as header)
168 : const int line_; ///< contextual line number (printed as header)
169 : bool linefeed_ {true}; ///< true if a '\n' (or any platform equivalent) has to be put at line end in consoleMode
170 : std::ostringstream os_; ///< string stream used with C++ stream style (stream operator<<)
171 : };
172 :
173 : namespace log {
174 :
175 : template<typename S, typename... Args>
176 : void
177 68758 : info(const char* file, int line, S&& format, Args&&... args)
178 : {
179 137513 : Logger::write(LOG_INFO, file, line, true, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
180 68761 : }
181 : template<typename S, typename... Args>
182 : void
183 67701 : dbg(const char* file, int line, S&& format, Args&&... args)
184 : {
185 135419 : Logger::write(LOG_DEBUG, file, line, true, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
186 67725 : }
187 : template<typename S, typename... Args>
188 : void
189 23668 : warn(const char* file, int line, S&& format, Args&&... args)
190 : {
191 47335 : Logger::write(LOG_WARNING, file, line, true, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
192 23668 : }
193 : template<typename S, typename... Args>
194 : void
195 872 : error(const char* file, int line, S&& format, Args&&... args)
196 : {
197 1744 : Logger::write(LOG_ERR, file, line, true, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
198 872 : }
199 :
200 : template<typename S, typename... Args>
201 : void
202 : xinfo(const char* file, int line, S&& format, Args&&... args)
203 : {
204 : Logger::write(LOG_INFO, file, line, false, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
205 : }
206 : template<typename S, typename... Args>
207 : void
208 4 : xdbg(const char* file, int line, S&& format, Args&&... args)
209 : {
210 8 : Logger::write(LOG_DEBUG, file, line, false, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
211 4 : }
212 : template<typename S, typename... Args>
213 : void
214 0 : xwarn(const char* file, int line, S&& format, Args&&... args)
215 : {
216 0 : Logger::write(LOG_WARNING, file, line, false, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
217 0 : }
218 : template<typename S, typename... Args>
219 : void
220 0 : xerror(const char* file, int line, S&& format, Args&&... args)
221 : {
222 0 : Logger::write(LOG_ERR, file, line, false, fmt::format(std::forward<S>(format), std::forward<Args>(args)...));
223 0 : }
224 :
225 : } // namespace log
226 :
227 : // We need to use macros for contextual information
228 : #define JAMI_INFO(...) ::jami::Logger::log(LOG_INFO, __FILE__, __LINE__, true, ##__VA_ARGS__)
229 : #define JAMI_DBG(...) ::jami::Logger::log(LOG_DEBUG, __FILE__, __LINE__, true, ##__VA_ARGS__)
230 : #define JAMI_WARN(...) ::jami::Logger::log(LOG_WARNING, __FILE__, __LINE__, true, ##__VA_ARGS__)
231 : #define JAMI_ERR(...) ::jami::Logger::log(LOG_ERR, __FILE__, __LINE__, true, ##__VA_ARGS__)
232 :
233 : #define JAMI_XINFO(formatstr, ...) ::jami::log::xinfo(__FILE__, __LINE__, FMT_COMPILE(formatstr), ##__VA_ARGS__)
234 : #define JAMI_XDBG(formatstr, ...) ::jami::log::xdbg(__FILE__, __LINE__, FMT_COMPILE(formatstr), ##__VA_ARGS__)
235 : #define JAMI_XWARN(formatstr, ...) ::jami::log::xwarn(__FILE__, __LINE__, FMT_COMPILE(formatstr), ##__VA_ARGS__)
236 : #define JAMI_XERR(formatstr, ...) ::jami::log::xerror(__FILE__, __LINE__, FMT_COMPILE(formatstr), ##__VA_ARGS__)
237 :
238 : #define JAMI_LOG(formatstr, ...) ::jami::log::info(__FILE__, __LINE__, FMT_STRING(formatstr), ##__VA_ARGS__)
239 : #define JAMI_DEBUG(formatstr, ...) \
240 : if (::jami::Logger::debugEnabled()) { \
241 : ::jami::log::dbg(__FILE__, __LINE__, FMT_STRING(formatstr), ##__VA_ARGS__); \
242 : }
243 : #define JAMI_WARNING(formatstr, ...) ::jami::log::warn(__FILE__, __LINE__, FMT_STRING(formatstr), ##__VA_ARGS__)
244 : #define JAMI_ERROR(formatstr, ...) ::jami::log::error(__FILE__, __LINE__, FMT_STRING(formatstr), ##__VA_ARGS__)
245 :
246 : } // namespace jami
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