2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG 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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Robert Nagy, ronag89@gmail.com
34 #include <boost/shared_ptr.hpp>
35 #include <boost/make_shared.hpp>
36 #include <boost/filesystem/convenience.hpp>
37 #include <boost/date_time/posix_time/posix_time.hpp>
38 #include <boost/algorithm/string.hpp>
40 #include <boost/log/core.hpp>
41 #include <boost/log/trivial.hpp>
42 #include <boost/log/expressions.hpp>
44 #include <boost/log/sinks/text_file_backend.hpp>
45 #include <boost/log/sinks/text_ostream_backend.hpp>
46 #include <boost/log/sinks/sync_frontend.hpp>
47 #include <boost/log/sinks/async_frontend.hpp>
48 #include <boost/log/core/record.hpp>
49 #include <boost/log/attributes/attribute_value.hpp>
50 #include <boost/log/attributes/current_thread_id.hpp>
51 #include <boost/log/utility/setup/common_attributes.hpp>
53 #include <boost/core/null_deleter.hpp>
54 #include <boost/lambda/lambda.hpp>
55 #include <boost/bind.hpp>
56 #include <boost/lexical_cast.hpp>
57 #include <boost/property_tree/ptree.hpp>
58 #include <boost/thread/mutex.hpp>
60 #include <tbb/atomic.h>
62 namespace caspar { namespace log {
64 using namespace boost;
66 template<typename Stream>
67 void append_timestamp(Stream& stream)
69 auto timestamp = boost::posix_time::microsec_clock::local_time();
70 auto date = timestamp.date();
71 auto time = timestamp.time_of_day();
72 auto milliseconds = time.fractional_seconds() / 1000; // microseconds to milliseconds
74 std::wstringstream buffer;
79 << std::setw(4) << date.year() << L"-" << std::setw(2) << date.month().as_number() << "-" << std::setw(2) << date.day().as_number()
81 << std::setw(2) << time.hours() << L":" << std::setw(2) << time.minutes() << L":" << std::setw(2) << time.seconds()
83 << std::setw(3) << milliseconds
86 stream << buffer.str();
91 tbb::atomic<int> column_width_;
93 column_writer(int initial_width = 0)
95 column_width_ = initial_width;
98 template<typename Stream, typename Val>
99 void write(Stream& out, const Val& value)
101 std::wstring to_string = boost::lexical_cast<std::wstring>(value);
102 int length = static_cast<int>(to_string.size());
105 while ((read_width = column_width_) < length && column_width_.compare_and_swap(length, read_width) != read_width);
106 read_width = column_width_;
108 out << L"[" << to_string << L"] ";
110 for (int n = 0; n < read_width - length; ++n)
115 template<typename Stream>
116 void my_formatter(bool print_all_characters, const boost::log::record_view& rec, Stream& strm)
118 static column_writer thread_id_column;
119 static column_writer severity_column(7);
120 namespace expr = boost::log::expressions;
122 std::wstringstream pre_message_stream;
123 append_timestamp(pre_message_stream);
124 thread_id_column.write(pre_message_stream, boost::log::extract<boost::log::attributes::current_thread_id::value_type>("ThreadID", rec).get().native_id());
125 severity_column.write(pre_message_stream, boost::log::extract<boost::log::trivial::severity_level>("Severity", rec));
127 auto pre_message = pre_message_stream.str();
131 auto line_break_replacement = L"\n" + pre_message;
133 if (print_all_characters)
135 strm << boost::replace_all_copy(rec[expr::message].get<std::wstring>(), "\n", line_break_replacement);
139 strm << boost::replace_all_copy(replace_nonprintable_copy(rec[expr::message].get<std::wstring>(), L'?'), L"\n", line_break_replacement);
147 boost::log::add_common_attributes();
148 typedef boost::log::sinks::asynchronous_sink<boost::log::sinks::wtext_ostream_backend> stream_sink_type;
150 auto stream_backend = boost::make_shared<boost::log::sinks::wtext_ostream_backend>();
151 stream_backend->add_stream(boost::shared_ptr<std::wostream>(&std::wcout, boost::null_deleter()));
152 stream_backend->auto_flush(true);
154 auto stream_sink = boost::make_shared<stream_sink_type>(stream_backend);
155 // Never log calltrace to console. The terminal is too slow, so the log queue will build up faster than consumed.
156 stream_sink->set_filter(category != log_category::calltrace);
158 bool print_all_characters = false;
159 stream_sink->set_formatter(boost::bind(&my_formatter<boost::log::wformatting_ostream>, print_all_characters, _1, _2));
161 boost::log::core::get()->add_sink(stream_sink);
166 void add_file_sink(const std::wstring& file, const boost::log::filter& filter)
168 typedef boost::log::sinks::synchronous_sink<boost::log::sinks::text_file_backend> file_sink_type;
172 if (!boost::filesystem::is_directory(boost::filesystem::path(file).parent_path()))
173 CASPAR_THROW_EXCEPTION(directory_not_found());
175 auto file_sink = boost::make_shared<file_sink_type>(
176 boost::log::keywords::file_name = (file + L"_%Y-%m-%d.log"),
177 boost::log::keywords::time_based_rotation = boost::log::sinks::file::rotation_at_time_point(0, 0, 0),
178 boost::log::keywords::auto_flush = true,
179 boost::log::keywords::open_mode = std::ios::app
182 bool print_all_characters = true;
184 file_sink->set_formatter(boost::bind(&my_formatter<boost::log::formatting_ostream>, print_all_characters, _1, _2));
185 file_sink->set_filter(filter);
186 boost::log::core::get()->add_sink(file_sink);
190 std::wcerr << L"Failed to Setup File Logging Sink" << std::endl << std::endl;
194 std::shared_ptr<void> add_preformatted_line_sink(std::function<void(std::string line)> formatted_line_sink)
196 class sink_backend : public boost::log::sinks::basic_formatted_sink_backend<char>
198 std::function<void(std::string line)> formatted_line_sink_;
200 sink_backend(std::function<void(std::string line)> formatted_line_sink)
201 : formatted_line_sink_(std::move(formatted_line_sink))
205 void consume(const boost::log::record_view& rec, const std::string& formatted_message)
209 formatted_line_sink_(formatted_message);
213 std::cerr << "[sink_backend] Error while consuming formatted message: " << formatted_message << std::endl << std::endl;
218 typedef boost::log::sinks::synchronous_sink<sink_backend> sink_type;
220 auto sink = boost::make_shared<sink_type>(std::move(formatted_line_sink));
221 bool print_all_characters = true;
223 sink->set_formatter(boost::bind(&my_formatter<boost::log::formatting_ostream>, print_all_characters, _1, _2));
224 sink->set_filter(category != log_category::calltrace);
226 boost::log::core::get()->add_sink(sink);
228 return std::shared_ptr<void>(nullptr, [=](void*)
230 boost::log::core::get()->remove_sink(sink);
234 boost::mutex& get_filter_mutex()
236 static boost::mutex instance;
241 boost::log::trivial::severity_level& get_level()
243 static boost::log::trivial::severity_level instance;
248 log_category& get_disabled_categories()
250 static log_category instance = log_category::calltrace;
255 void set_log_filter()
257 auto severity_filter = boost::log::trivial::severity >= get_level();
258 auto disabled_categories = get_disabled_categories();
260 boost::log::core::get()->set_filter([=](const boost::log::attribute_value_set& attributes)
262 return severity_filter(attributes)
263 && static_cast<int>(disabled_categories & attributes["Channel"].extract<log_category>().get()) == 0;
267 void set_log_level(const std::wstring& lvl)
269 boost::lock_guard<boost::mutex> lock(get_filter_mutex());
271 if (boost::iequals(lvl, L"trace"))
272 get_level() = boost::log::trivial::trace;
273 else if (boost::iequals(lvl, L"debug"))
274 get_level() = boost::log::trivial::debug;
275 else if (boost::iequals(lvl, L"info"))
276 get_level() = boost::log::trivial::info;
277 else if (boost::iequals(lvl, L"warning"))
278 get_level() = boost::log::trivial::warning;
279 else if (boost::iequals(lvl, L"error"))
280 get_level() = boost::log::trivial::error;
281 else if (boost::iequals(lvl, L"fatal"))
282 get_level() = boost::log::trivial::fatal;
287 void set_log_category(const std::wstring& cat, bool enabled)
289 log_category category_to_set;
291 if (boost::iequals(cat, L"calltrace"))
292 category_to_set = log_category::calltrace;
293 else if (boost::iequals(cat, L"communication"))
294 category_to_set = log_category::communication;
298 boost::lock_guard<boost::mutex> lock(get_filter_mutex());
299 auto& disabled_categories = get_disabled_categories();
302 disabled_categories &= ~category_to_set;
304 disabled_categories |= category_to_set;
310 boost::log::trivial::severity_level level,
311 const std::wstring& indent,
312 const std::wstring& elem,
313 const boost::property_tree::wptree& tree)
315 auto& data = tree.data();
318 BOOST_LOG_STREAM_WITH_PARAMS(log::logger::get(), (boost::log::keywords::severity = level)) << indent << elem << L" " << replace_nonprintable_copy(data, L'?');
319 else if (tree.size() == 0)
320 BOOST_LOG_STREAM_WITH_PARAMS(log::logger::get(), (boost::log::keywords::severity = level)) << indent << elem;
322 for (auto& child : tree)
323 print_child(level, indent + (elem.empty() ? L"" : elem + L"."), child.first, child.second);