1 files changed, 217 insertions, 0 deletions

diff --git a/xbmc/utils/log.h b/xbmc/utils/log.h
new file mode 100644
index 0000000..7287918
--- /dev/null
+++ b/xbmc/utils/log.h
@@ -0,0 +1,217 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+// spdlog specific defines
+#define SPDLOG_LEVEL_NAMES {"TRACE", "DEBUG", "INFO", "WARNING", "ERROR", "FATAL", "OFF"};
+
+#include "commons/ilog.h"
+#include "settings/lib/ISettingCallback.h"
+#include "settings/lib/ISettingsHandler.h"
+#include "settings/lib/SettingDefinitions.h"
+#include "utils/IPlatformLog.h"
+#include "utils/StringUtils.h"
+#include "utils/logtypes.h"
+
+#include <string>
+#include <vector>
+
+#include <spdlog/spdlog.h>
+
+namespace spdlog
+{
+namespace sinks
+{
+template<typename Mutex>
+class basic_file_sink;
+
+template<typename Mutex>
+class dist_sink;
+} // namespace sinks
+} // namespace spdlog
+
+class CLog : public ISettingsHandler, public ISettingCallback
+{
+public:
+  CLog();
+  ~CLog() = default;
+
+  // implementation of ISettingsHandler
+  void OnSettingsLoaded() override;
+
+  // implementation of ISettingCallback
+  void OnSettingChanged(std::shared_ptr<const CSetting> setting) override;
+
+  void Initialize(const std::string& path);
+  void Uninitialize();
+
+  void SetLogLevel(int level);
+  int GetLogLevel() { return m_logLevel; }
+  bool IsLogLevelLogged(int loglevel);
+
+  bool CanLogComponent(uint32_t component) const;
+  static void SettingOptionsLoggingComponentsFiller(std::shared_ptr<const CSetting> setting,
+                                                    std::vector<IntegerSettingOption>& list,
+                                                    int& current,
+                                                    void* data);
+
+  Logger GetLogger(const std::string& loggerName);
+
+  template<typename Char, typename... Args>
+  static inline void Log(int level, const Char* format, Args&&... args)
+  {
+    Log(MapLogLevel(level), format, std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void Log(int level, uint32_t component, const Char* format, Args&&... args)
+  {
+    if (!GetInstance().CanLogComponent(component))
+      return;
+
+    Log(level, format, std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void Log(spdlog::level::level_enum level, const Char* format, Args&&... args)
+  {
+    GetInstance().FormatAndLogInternal(level, format, std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void Log(spdlog::level::level_enum level,
+                         uint32_t component,
+                         const Char* format,
+                         Args&&... args)
+  {
+    if (!GetInstance().CanLogComponent(component))
+      return;
+
+    Log(level, format, std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void LogFunction(int level,
+                                 const char* functionName,
+                                 const Char* format,
+                                 Args&&... args)
+  {
+    LogFunction(MapLogLevel(level), functionName, format, std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void LogFunction(
+      int level, const char* functionName, uint32_t component, const Char* format, Args&&... args)
+  {
+    if (!GetInstance().CanLogComponent(component))
+      return;
+
+    LogFunction(level, functionName, format, std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void LogFunction(spdlog::level::level_enum level,
+                                 const char* functionName,
+                                 const Char* format,
+                                 Args&&... args)
+  {
+    if (functionName == nullptr || strlen(functionName) == 0)
+      GetInstance().FormatAndLogInternal(level, format, std::forward<Args>(args)...);
+    else
+      GetInstance().FormatAndLogFunctionInternal(level, functionName, format,
+                                                 std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  static inline void LogFunction(spdlog::level::level_enum level,
+                                 const char* functionName,
+                                 uint32_t component,
+                                 const Char* format,
+                                 Args&&... args)
+  {
+    if (!GetInstance().CanLogComponent(component))
+      return;
+
+    LogFunction(level, functionName, format, std::forward<Args>(args)...);
+  }
+
+#define LogF(level, format, ...) LogFunction((level), __FUNCTION__, (format), ##__VA_ARGS__)
+#define LogFC(level, component, format, ...) \
+  LogFunction((level), __FUNCTION__, (component), (format), ##__VA_ARGS__)
+
+private:
+  static CLog& GetInstance();
+
+  static spdlog::level::level_enum MapLogLevel(int level);
+
+  template<typename... Args>
+  static inline void FormatAndLogFunctionInternal(spdlog::level::level_enum level,
+                                                  const char* functionName,
+                                                  const char* format,
+                                                  Args&&... args)
+  {
+    GetInstance().FormatAndLogInternal(
+        level, StringUtils::Format("{0:s}: {1:s}", functionName, format).c_str(),
+        std::forward<Args>(args)...);
+  }
+
+  template<typename... Args>
+  static inline void FormatAndLogFunctionInternal(spdlog::level::level_enum level,
+                                                  const char* functionName,
+                                                  const wchar_t* format,
+                                                  Args&&... args)
+  {
+    GetInstance().FormatAndLogInternal(
+        level, StringUtils::Format(L"{0:s}: {1:s}", functionName, format).c_str(),
+        std::forward<Args>(args)...);
+  }
+
+  template<typename Char, typename... Args>
+  inline void FormatAndLogInternal(spdlog::level::level_enum level,
+                                   const Char* format,
+                                   Args&&... args)
+  {
+    // TODO: for now we manually format the messages to support both python- and printf-style formatting.
+    //       this can be removed once all log messages have been adjusted to python-style formatting
+    auto logString = StringUtils::Format(format, std::forward<Args>(args)...);
+
+    // fixup newline alignment, number of spaces should equal prefix length
+    StringUtils::Replace(logString, "\n", "\n                                                   ");
+
+    m_defaultLogger->log(level, std::move(logString));
+  }
+
+  Logger CreateLogger(const std::string& loggerName);
+
+  void SetComponentLogLevel(const std::vector<CVariant>& components);
+
+  std::unique_ptr<IPlatformLog> m_platform;
+  std::shared_ptr<spdlog::sinks::dist_sink<std::mutex>> m_sinks;
+  Logger m_defaultLogger;
+
+  std::shared_ptr<spdlog::sinks::basic_file_sink<std::mutex>> m_fileSink;
+
+  int m_logLevel;
+
+  bool m_componentLogEnabled;
+  uint32_t m_componentLogLevels;
+};
+
+namespace XbmcUtils
+{
+class LogImplementation : public XbmcCommons::ILogger
+{
+public:
+  ~LogImplementation() override = default;
+  inline void log(int logLevel, IN_STRING const char* message) override
+  {
+    CLog::Log(logLevel, "{0:s}", message);
+  }
+};
+} // namespace XbmcUtils