logger.hxx

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// logger.hxx - log properties.
// Written by David Megginson, started 2002.
//
// This file is in the Public Domain, and comes with no warranty.
 
#ifndef __LOGGER_HXX
#define __LOGGER_HXX 1
 
#include <memory>
#include <vector>
 
#include <simgear/compiler.h>
#include <simgear/io/iostreams/sgstream.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/props/props.hxx>

class FGLogger : public SGSubsystem
{
public:
    // Subsystem API.
    void bind() override;
    void init() override;
    void reinit() override;
    void unbind() override;
    void update(double dt) override;
 
    // Subsystem identification.
    static const char* staticSubsystemClassId() { return "logger"; }
 
private:
    struct Log {
      Log ();
 
      std::vector<SGPropertyNode_ptr> nodes;
      std::unique_ptr<sg_ofstream> output;
      long interval_ms;
      double last_time_ms;
      char delimiter;
    };
 
    std::vector< std::unique_ptr<Log> > _logs;
};
 
#endif // __LOGGER_HXX