io.cpp File Reference

: file containg io functions (surprise!) More...

#include <string>
#include <cstring>
#include <cstdio>
#include <cstdlib>
#include <cerrno>
#include <ctime>
#include <cmath>
#include <fstream>
#include <iostream>
#include <sstream>
#include "proto.h"
#include "globals.h"
#include "cglobals.h"
#include "cmakeVars.h"

Include dependency graph for io.cpp:

Defines
#define	DOPRINT   0
Functions
bool	read_simdata ()
void	getsnaplocation ()
void	setup_io ()
void	read_parameterfile ()
void	get_parameter_value (char *key, char *line)
int	get_int_file (FILE *file)
int	get_next_int (char *line)
double	get_double_file (FILE *file)
int	get_doubles_file (FILE *file, int number, double results[])
void	get_string_file (FILE *file, char *string)
double	get_next_double (char *line)
void	get_next_string (char *instring, char *outstring)
int	get_file_line (FILE *file, char *line)
int	get_int_stdin ()
double	get_double_stdin ()
void	get_string_stdin (char *string)
void	get_stdin_line (char *line)
size_t	my_fread (void *ptr, size_t size, size_t nmemb, FILE *stream)
double	second (void)
double	timediff (double t0, double t1)
void	printTimingsInfo (const char *function_name, double dtime)
FILE *	open_file_write (char *filename)
FILE *	open_file_append (char *filename)
FILE *	open_file_read (char *filename)
void	pgp_set_name_term (const char *name)
string	getLocation ()

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Detailed Description

: file containg io functions (surprise!)

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Function Documentation

int get_file_line	(	FILE *	file,
		char *	line
	)

return 0 on error (e.g. end of file) return 1 on success

string getLocation

(

)

return the base hyplot location. Get it from the header file generated by cmake

size_t my_fread	(	void *	ptr,
		size_t	size,
		size_t	nmemb,
		FILE *	stream
	)

This catches I/O errors occuring for fread(). In this case we better stop.

bool read_simdata

(

void

)

read

double second

(

void

)

returns the number of cpu-ticks in seconds that have elapsed, or the wall-clock time obtained with MPI_Wtime().

void setup_io

(

void

)

calls the appropriate c++ routines that check the number of files on the disk and set some global variables.

double timediff	(	double	t0,
		double	t1
	)

returns the time difference between two measurements obtained with second(). The routine takes care of the possible overflow of the tick counter on 32bit systems, but depending on the system, this may not always work properly. Similarly, in some MPI implementations, the MPI_Wtime() function may also overflow, in which case a negative time difference would be returned. The routine returns instead a time difference equal to 0.