Untested use of Frame for video/audio content lengths.

[dcpomatic.git] / src / lib / log.h

diff --git a/src/lib/log.h b/src/lib/log.h
index d4de8ebde6ff466110b2b49ae67e51ab6ae6c6c9..f83c6a90204ef675c93a89f7b0100f760c7efe01 100644 (file)
--- a/src/lib/log.h
+++ b/src/lib/log.h
@@ -17,39 +17,78 @@
 
 */
 
+#ifndef DCPOMATIC_LOG_H
+#define DCPOMATIC_LOG_H
+
 /** @file src/log.h
  *  @brief A very simple logging class.
  */
 
-#include <string>
+#include <dcp/types.h>
 #include <boost/thread/mutex.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/signals2.hpp>
+#include <string>
 
 /** @class Log
  *  @brief A very simple logging class.
- *
- *  This class simply accepts log messages and writes them to a file.
- *  Its single nod to complexity is that it has a mutex to prevent
- *  multi-thread logging from clashing.
  */
-class Log
+class Log : public boost::noncopyable
 {
 public:
-       Log (std::string f);
+       Log ();
+       virtual ~Log () {}
 
-       enum Level {
-               STANDARD = 0,
-               VERBOSE = 1
-       };
+       static const int TYPE_GENERAL;
+       static const int TYPE_WARNING;
+       static const int TYPE_ERROR;
+       static const int TYPE_DEBUG;
+       static const int TYPE_TIMING;
 
-       void log (std::string m, Level l = STANDARD);
+       void log (std::string message, int type);
+       void microsecond_log (std::string message, int type);
+       void dcp_log (dcp::NoteType type, std::string message);
 
-       void set_level (Level l);
+       void set_types (int types);
 
+       virtual std::string head_and_tail (int amount = 1024) const = 0;
+
+protected:
+       
+       /** mutex to protect the log */
+       mutable boost::mutex _mutex;
+       
 private:
-       /** mutex to prevent simultaneous writes to the file */
-       boost::mutex _mutex;
+       virtual void do_log (std::string m) = 0;
+       void config_changed ();
+       
+       /** bit-field of log types which should be put into the log (others are ignored) */
+       int _types;
+       boost::signals2::scoped_connection _config_connection;
+};
+
+class FileLog : public Log
+{
+public:
+       FileLog (boost::filesystem::path file);
+
+       std::string head_and_tail (int amount = 1024) const;
+
+private:
+       void do_log (std::string m);
        /** filename to write to */
-       std::string _file;
-       /** level above which to ignore log messages */
-       Level _level;
+       boost::filesystem::path _file;
+};
+
+class NullLog : public Log
+{
+public:
+       std::string head_and_tail (int) const {
+               return "";
+       }
+
+private:       
+       void do_log (std::string) {}
 };
+
+#endif