utilities.cc File Reference

Basic OS access utilities. More...

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <unistd.h>
#include "utilities.h"
#include "output.h"

Macros
#define	PROCFILESIZE   8888

Functions
int	generate_unique_random_filename (char *result, unsigned n)
long int	get_file_size (const char *fileName)
void	get_host_name (host_name_struct *result)
void	get_working_directory (working_directory_struct *result)
int	get_memory_usage_by_ps (double *virtualMemoryGigaBytes, double *residentMemoryGigaBytes)
static int	getNumberFromBuffer (const char *buffer, const char *s)
int	get_memory_usage_by_procfile (double *virtualMemGigaBytes, double *residentMemGigaBytes, double *virtualMemPeakGigaBytes)

Variables
static int	unique_random_filename_counter = 0

Detailed Description

Basic OS access utilities.

Author

: Elias Rudberg responsible

Macro Definition Documentation

PROCFILESIZE

#define PROCFILESIZE   8888

Referenced by get_memory_usage_by_procfile(), and mat::MemUsage::getMemUsage().

Function Documentation

generate_unique_random_filename()

int generate_unique_random_filename	(	char *	result,
		unsigned	n )

References unique_random_filename_counter.

Referenced by get_memory_usage_by_ps(), and get_working_directory().

get_file_size()

long int get_file_size

(

const char *

fileName

)

Referenced by readMoleculeFileInMolFormat(), and readMoleculeFileInXyzFormat().

get_host_name()

void get_host_name

(

host_name_struct *

result

)

References host_name_struct::s.

Referenced by SCF_general::SCF_general().

get_memory_usage_by_procfile()

int get_memory_usage_by_procfile	(	double *	virtualMemGigaBytes,
		double *	residentMemGigaBytes,
		double *	virtualMemPeakGigaBytes )

References do_output(), getNumberFromBuffer(), LOG_AREA_UNDEFINED, LOG_CAT_ERROR, and PROCFILESIZE.

Referenced by SCF_general::do_SCF_iterations(), and output_current_memory_usage().

get_memory_usage_by_ps()

int get_memory_usage_by_ps	(	double *	virtualMemoryGigaBytes,
		double *	residentMemoryGigaBytes )

References generate_unique_random_filename().

get_working_directory()

void get_working_directory

(

working_directory_struct *

result

)

References generate_unique_random_filename(), MAX_WORKING_DIRECTORY_LEN, and working_directory_struct::s.

Referenced by SCF_general::SCF_general().

getNumberFromBuffer()

int getNumberFromBuffer ( const char * buffer, const char * s )

static

Referenced by get_memory_usage_by_procfile().

Variable Documentation

unique_random_filename_counter

int unique_random_filename_counter = 0

static

Referenced by generate_unique_random_filename().