git.sesse.net Git - casparcg/blob - common/log.cpp

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   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.
  10 *
  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.
  15 *
  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/>.
  18 *
  19 * Author: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #include "stdafx.h"
  23
  24 #include "log.h"
  25
  26 #include "except.h"
  27 #include "utf.h"
  28
  29 #include <ios>
  30 #include <iomanip>
  31 #include <string>
  32 #include <ostream>
  33
  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>
  39
  40 #include <boost/log/core.hpp>
  41 #include <boost/log/trivial.hpp>
  42 #include <boost/log/expressions.hpp>
  43
  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>
  52
  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
  58 #include <tbb/atomic.h>
  59
  60 namespace caspar { namespace log {
  61
  62 using namespace boost;
  63
  64 template<typename Stream>
  65 void append_timestamp(Stream& stream)
  66 {
  67         auto timestamp = boost::posix_time::microsec_clock::local_time();
  68         auto date = timestamp.date();
  69         auto time = timestamp.time_of_day();
  70         auto milliseconds = time.fractional_seconds() / 1000; // microseconds to milliseconds
  71
  72         std::wstringstream buffer;
  73
  74         buffer
  75                 << std::setfill(L'0')
  76                 << L"["
  77                 << std::setw(4) << date.year() << L"-" << std::setw(2) << date.month().as_number() << "-" << std::setw(2) << date.day().as_number()
  78                 << L" "
  79                 << std::setw(2) << time.hours() << L":" << std::setw(2) << time.minutes() << L":" << std::setw(2) << time.seconds()
  80                 << L"."
  81                 << std::setw(3) << milliseconds
  82                 << L"] ";
  83
  84         stream << buffer.str();
  85 }
  86
  87 class column_writer
  88 {
  89         tbb::atomic<int> column_width_;
  90 public:
  91         column_writer(int initial_width = 0)
  92         {
  93                 column_width_ = initial_width;
  94         }
  95
  96         template<typename Stream, typename Val>
  97         void write(Stream& out, const Val& value)
  98         {
  99                 std::string to_string = boost::lexical_cast<std::string>(value);
 100                 int length = static_cast<int>(to_string.size());
 101                 int read_width;
 102
 103                 while ((read_width = column_width_) < length && column_width_.compare_and_swap(length, read_width) != read_width);
 104                 read_width = column_width_;
 105
 106                 out << L"[" << to_string << L"] ";
 107
 108                 for (int n = 0; n < read_width - length; ++n)
 109                         out << L" ";
 110         }
 111 };
 112
 113 template<typename Stream>
 114 void my_formatter(bool print_all_characters, const boost::log::record_view& rec, Stream& strm)
 115 {
 116         static column_writer thread_id_column;
 117         static column_writer severity_column(7);
 118         namespace expr = boost::log::expressions;
 119
 120         append_timestamp(strm);
 121
 122         thread_id_column.write(strm, boost::log::extract<boost::log::attributes::current_thread_id::value_type>("ThreadID", rec).get().native_id());
 123         severity_column.write(strm, boost::log::extract<boost::log::trivial::severity_level>("Severity", rec));
 124
 125         if (print_all_characters)
 126         {
 127                 strm << rec[expr::message];
 128         }
 129         else
 130         {
 131                 strm << replace_nonprintable_copy(rec[expr::message].get<std::wstring>(), L'?');
 132         }
 133 }
 134
 135 namespace internal{
 136
 137 void init()
 138 {
 139         boost::log::add_common_attributes();
 140         typedef boost::log::sinks::asynchronous_sink<boost::log::sinks::wtext_ostream_backend> stream_sink_type;
 141
 142         auto stream_backend = boost::make_shared<boost::log::sinks::wtext_ostream_backend>();
 143         stream_backend->add_stream(boost::shared_ptr<std::wostream>(&std::wcout, boost::null_deleter()));
 144         stream_backend->auto_flush(true);
 145
 146         auto stream_sink = boost::make_shared<stream_sink_type>(stream_backend);
 147
 148         bool print_all_characters = false;
 149         stream_sink->set_formatter(boost::bind(&my_formatter<boost::log::wformatting_ostream>, print_all_characters, _1, _2));
 150
 151         boost::log::core::get()->add_sink(stream_sink);
 152 }
 153
 154 }
 155
 156 void add_file_sink(const std::wstring& folder)
 157 {
 158         typedef boost::log::sinks::synchronous_sink<boost::log::sinks::text_file_backend> file_sink_type;
 159
 160         try
 161         {
 162                 if (!boost::filesystem::is_directory(folder))
 163                         BOOST_THROW_EXCEPTION(directory_not_found());
 164
 165                 auto file_sink = boost::make_shared<file_sink_type>(
 166                         boost::log::keywords::file_name = (folder + L"caspar_%Y-%m-%d.log"),
 167                         boost::log::keywords::time_based_rotation = boost::log::sinks::file::rotation_at_time_point(0, 0, 0),
 168                         boost::log::keywords::auto_flush = true,
 169                         boost::log::keywords::open_mode = std::ios::app
 170                         );
 171
 172                 bool print_all_characters = true;
 173
 174                 file_sink->set_formatter(boost::bind(&my_formatter<boost::log::formatting_ostream>, print_all_characters, _1, _2));
 175                 boost::log::core::get()->add_sink(file_sink);
 176         }
 177         catch (...)
 178         {
 179                 std::wcerr << L"Failed to Setup File Logging Sink" << std::endl << std::endl;
 180         }
 181 }
 182
 183 void set_log_level(const std::wstring& lvl)
 184 {
 185         if (boost::iequals(lvl, L"trace"))
 186                 boost::log::core::get()->set_filter(boost::log::trivial::severity >= boost::log::trivial::trace);
 187         else if (boost::iequals(lvl, L"debug"))
 188                 boost::log::core::get()->set_filter(boost::log::trivial::severity >= boost::log::trivial::debug);
 189         else if (boost::iequals(lvl, L"info"))
 190                 boost::log::core::get()->set_filter(boost::log::trivial::severity >= boost::log::trivial::info);
 191         else if (boost::iequals(lvl, L"warning"))
 192                 boost::log::core::get()->set_filter(boost::log::trivial::severity >= boost::log::trivial::warning);
 193         else if (boost::iequals(lvl, L"error"))
 194                 boost::log::core::get()->set_filter(boost::log::trivial::severity >= boost::log::trivial::error);
 195         else if (boost::iequals(lvl, L"fatal"))
 196                 boost::log::core::get()->set_filter(boost::log::trivial::severity >= boost::log::trivial::fatal);
 197 }
 198
 199 }}