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//=============================================================================
/**
* @file GPlot_File.h
*
* $Id$
*
* @author Tim Harrison
*/
//=============================================================================
#ifndef ACE_GPlot_File_H
#define ACE_GPlot_File_H
#include /**/ "ace/pre.h"
#include "ace/Map_Manager.h"
#include "old_event_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Null_Mutex.h"
/**
* @class ACE_GPlot_File
*
* @brief Reads and writes files in GPlot format.
*
* Gplot formats are as follows:
* entry value
* entry value
* entry value
* ...
* They represent x,y pairs to be graphed by GPlot. entry's are
* type long. value's are type long or float.
*/
class TAO_RTOLDEvent_Export ACE_GPlot_File
{
public:
/// Construction.
ACE_GPlot_File (void);
/// Destruction. Calls this->close.
~ACE_GPlot_File (void);
/**
* If the file does not exist, create it. If the file exists open
* the file and read all the entries into map_. Returns 0 on
* success, -1 on failure.
*/
int open (const char *filename);
/// Close the file and sync all the contents.
void close (void);
/// Get the entry at this value. Returns 0 if a value was found.
/// Returns -1 if no value has been set for <entry>.
int get (long entry, long &value);
/// Get the entry at this value. Returns 0 if a value was found.
/// Returns -1 if no value has been set for <entry>.
int get (long entry, float &value);
/// Set the entry at this value.
void set (long entry, long value);
/// Set the entry at this value.
void set (long entry, float value);
/// Compare <value> with the value at <entry>. Store the largest.
void set_greatest (long entry, long value);
/// Compare <value> with the value at <entry>. Store the largest.
void set_greatest (long entry, float value);
/// Compare <value> with the value at <entry>. Store the smallest.
void set_least (long entry, long value);
/// Compare <value> with the value at <entry>. Store the smallest.
void set_least (long entry, float value);
/// Dump state of the object.
void dump (void);
private:
// = map_ stores all values. It is sync'ed to file when this->close
// is called.
typedef ACE_Map_Entry <long, char *> GPLOT_ENTRY;
typedef ACE_Map_Manager<long, char *, ACE_Null_Mutex> GPLOT_MAP;
typedef ACE_Map_Iterator <long, char *, ACE_Null_Mutex> GPLOT_ITERATOR;
GPLOT_MAP map_;
char filename_[BUFSIZ];
FILE *write_file_;
/// Only close once.
int closed_;
};
#if defined (__ACE_INLINE__)
#include "GPlot_File.i"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* ACE_GPlot_File_H */
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