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// $Id$
//
// ============================================================================
//
// = FILENAME
// GPlot_File.h
//
// = AUTHOR
// Tim Harrison
//
// ============================================================================
#if !defined (ACE_GPlot_File_H)
#define ACE_GPlot_File_H
#include "ace/Map_Manager.h"
#include "ace/Synch.h"
class ACE_GPlot_File
// = TITLE
// Reads and writes files in GPlot format.
//
// = DESCRIPTION
// 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.
{
public:
ACE_GPlot_File (void);
// Construction.
~ACE_GPlot_File (void);
// Destruction. Calls this->close.
int open (const char *filename);
// 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.
void close (void);
// Close the file and sync all the contents.
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);
// Get the entry at this value. Returns 0 if a value was found.
// Returns -1 if no value has been set for <entry>.
void set (long entry, long value);
// Set the entry at this value.
void set (long entry, float value);
// Set the entry at this value.
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 largest.
void set_least (long entry, long value);
// Compare <value> with the value at <entry>. Store the smallest.
void set_least (long entry, float value);
// Compare <value> with the value at <entry>. Store the smallest.
void dump (void);
// Dump state of the object.
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_Iterator <long, char *, ACE_Null_Mutex> GPLOT_ITERATOR;
typedef ACE_Map_Manager<long, char *, ACE_Null_Mutex> GPLOT_MAP;
GPLOT_MAP map_;
char filename_[BUFSIZ];
FILE *write_file_;
int closed_;
// Only close once.
};
#if defined (__ACE_INLINE__)
#include "GPlot_File.i"
#endif /* __ACE_INLINE__ */
#endif /* ACE_GPlot_File_H */
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