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/*
This file is part of GNUnet.
(C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file statistics/gnunet-statistics.c
* @brief tool to obtain statistics
* @author Christian Grothoff
* @author Igor Wronsky
*/
#include "platform.h"
#include "gnunet_getopt_lib.h"
#include "gnunet_program_lib.h"
#include "gnunet_statistics_service.h"
#include "statistics.h"
#define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
/**
* Final status code.
*/
static int ret;
/**
* Set to subsystem that we're going to get stats for (or NULL for all).
*/
static char *subsystem;
/**
* Set to the specific stat value that we are after (or NULL for all).
*/
static char *name;
/**
* Make the value that is being set persistent.
*/
static int persistent;
/**
* Callback function to process statistic values.
*
* @param cls closure
* @param subsystem name of subsystem that created the statistic
* @param name the name of the datum
* @param value the current value
* @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
* @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
*/
static int
printer (void *cls, const char *subsystem, const char *name, uint64_t value,
int is_persistent)
{
FPRINTF (stdout, "%s%-12s %-50s: %16llu\n", is_persistent ? "!" : " ",
subsystem, _(name), (unsigned long long) value);
return GNUNET_OK;
}
/**
* Function called last by the statistics code.
*
* @param cls closure
* @param success GNUNET_OK if statistics were
* successfully obtained, GNUNET_SYSERR if not.
*/
static void
cleanup (void *cls, int success)
{
struct GNUNET_STATISTICS_Handle *h = cls;
if (success != GNUNET_OK)
{
fprintf (stderr, _("Failed to obtain statistics.\n"));
ret = 1;
}
if (h != NULL)
GNUNET_STATISTICS_destroy (h, GNUNET_NO);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param cfg configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
struct GNUNET_STATISTICS_Handle *h;
unsigned long long val;
if (args[0] != NULL)
{
if ((1 != SSCANF (args[0], "%llu", &val)) || (subsystem == NULL) ||
(name == NULL))
{
FPRINTF (stderr, _("Invalid argument `%s'\n"), args[0]);
ret = 1;
return;
}
h = GNUNET_STATISTICS_create (subsystem, cfg);
if (h == NULL)
{
ret = 1;
return;
}
GNUNET_STATISTICS_set (h, name, (uint64_t) val, persistent);
GNUNET_STATISTICS_destroy (h, GNUNET_YES);
return;
}
h = GNUNET_STATISTICS_create ("gnunet-statistics", cfg);
if (h == NULL)
{
ret = 1;
return;
}
if (NULL ==
GNUNET_STATISTICS_get (h, subsystem, name, GET_TIMEOUT, &cleanup,
&printer, h))
cleanup (h, GNUNET_SYSERR);
}
/**
* The main function to obtain statistics in GNUnet.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
{'n', "name", "NAME",
gettext_noop ("limit output to statistcs for the given NAME"), 1,
&GNUNET_GETOPT_set_string, &name},
{'p', "persistent", NULL,
gettext_noop ("make the value being set persistent"), 0,
&GNUNET_GETOPT_set_one, &persistent},
{'s', "subsystem", "SUBSYSTEM",
gettext_noop ("limit output to the given SUBSYSTEM"), 1,
&GNUNET_GETOPT_set_string, &subsystem},
GNUNET_GETOPT_OPTION_END
};
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-statistics [options [value]]",
gettext_noop
("Print statistics about GNUnet operations."),
options, &run, NULL)) ? ret : 1;
}
/* end of gnunet-statistics.c */
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