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flightgear/src/Main/logger.hxx

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Added new logging module.
2002-03-12 16:29:00 +00:00
// 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
#ifndef __cplusplus
# error This library requires C++
#endif
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/exception.hxx>
#include <simgear/misc/props.hxx>
Fixes for Irix compatibility. Fix several long standing irix compiler warnings.
2002-03-12 20:01:54 +00:00
#ifndef SG_HAVE_NATIVE_SGI_COMPILERS
Added new logging module.
2002-03-12 16:29:00 +00:00
#include <iostream>
SG_USING_STD(ostream);
Fixes for Irix compatibility. Fix several long standing irix compiler warnings.
2002-03-12 20:01:54 +00:00
#endif
Added new logging module.
2002-03-12 16:29:00 +00:00
#include <vector>
SG_USING_STD(vector);
#include "fgfs.hxx"
/**
* Log any property values to any number of CSV files.
*/
class FGLogger : public FGSubsystem
{
public:
FGLogger ();
virtual ~FGLogger ();
// Implementation of FGSubsystem
virtual void init ();
virtual void bind ();
virtual void unbind ();
Major overhaul: - changed FGSubsystem::update(int) to FGSubsystem::update(delta_time_sec); the argument is now delta time in seconds rather than milliseconds - added FGSubsystem::suspend(), FGSubsystem::suspend(bool), FGSubsystem::resume(), and FGSubsystem::is_suspended(), all with default implementations; is_suspended takes account of the master freeze as well as the subsystem's individual suspended state - the FDMs now use the delta time argument the same as the rest of FlightGear; formerly, main.cxx made a special case and passed a multiloop argument - FDMs now calculate multiloop internally instead of relying on main.cxx There are probably some problems -- I've done basic testing with the major FDMs and subsystems, but we'll probably need a few weeks to sniff out bugs.
2002-05-11 16:28:50 +00:00
virtual void update (double dt);
Added new logging module.
2002-03-12 16:29:00 +00:00
private:
/**
* A single instance of a log file (the logger can contain many).
*/
struct Log {
Log ();
virtual ~Log ();
vector<SGPropertyNode *> nodes;
ostream * output;
long interval_ms;
There was an integer overflow in the way elapsed_time_ms. Because the SGTimeStamp "-" operator returns it's result in usec's, there is an upper bound of 37.8 minutes on the maximum difference this operator can reliably report before the math overflows. I change the global "int elapsed_time_ms" variable to a "double sim_time_ms" and restructured how the value is calculated. ---- The practical result of the overflow bug is that a large negative dt was passed to the event manager and the end effect was that no events would be run until their counters caught up ... in another 37.8 minutes or so.
2002-04-20 14:52:43 +00:00
double last_time_ms;
Added a new 'delimiter' property to allow an alternative delimiter to the comma, and fixed a constant that was causing CygWin compilation problems.
2002-03-12 19:55:49 +00:00
char delimiter;
Added new logging module.
2002-03-12 16:29:00 +00:00
};
vector<Log> _logs;
};
#endif // __LOGGER_HXX
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