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- /*
- This file is part of GNUnet.
- Copyright (C) 2001, 2002, 2004-2007, 2009, 2016 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- 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
- Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @file statistics/gnunet-statistics.c
- * @brief tool to obtain statistics
- * @author Christian Grothoff
- * @author Igor Wronsky
- */
- #include "platform.h"
- #include "gnunet_util_lib.h"
- #include "gnunet_statistics_service.h"
- #include "statistics.h"
- /**
- * Final status code.
- */
- static int ret;
- /**
- * Set to subsystem that we're going to get stats for (or NULL for all).
- */
- static char *subsystem;
- /**
- * The path of the testbed data.
- */
- static char *path_testbed;
- /**
- * 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;
- /**
- * Watch value continuously
- */
- static int watch;
- /**
- * Quiet mode
- */
- static int quiet;
- /**
- * @brief Separator string for csv.
- */
- static char *csv_separator;
- /**
- * Remote host
- */
- static char *remote_host;
- /**
- * Remote host's port
- */
- static unsigned long long remote_port;
- /**
- * Value to set
- */
- static unsigned long long set_val;
- /**
- * Set operation
- */
- static int set_value;
- /**
- * @brief Representation of all (testbed) nodes.
- */
- static struct Node {
- /**
- * @brief Index of the node in this array.
- */
- unsigned index_node;
- /**
- * @brief Configuration handle for this node
- */
- struct GNUNET_CONFIGURATION_Handle *conf;
- /**
- * Handle for pending GET operation.
- */
- struct GNUNET_STATISTICS_GetHandle *gh;
- /**
- * @brief Statistics handle nodes.
- */
- struct GNUNET_STATISTICS_Handle *handle;
- /**
- * @brief Identifier for shutdown task for this node.
- */
- struct GNUNET_SCHEDULER_Task *shutdown_task;
- } *nodes;
- /**
- * @brief Number of configurations of all (testbed) nodes.
- */
- static unsigned num_nodes;
- /**
- * @brief Set of values for a combination of subsystem and name.
- */
- struct ValueSet
- {
- /**
- * @brief Subsystem of the valueset.
- */
- char *subsystem;
- /**
- * @brief Name of the valueset.
- */
- char *name;
- /**
- * @brief The values.
- */
- uint64_t *values;
- /**
- * @brief Persistence of the values.
- */
- int is_persistent;
- };
- /**
- * @brief Collection of all values (represented with #ValueSet).
- */
- static struct GNUNET_CONTAINER_MultiHashMap *values;
- /**
- * @brief Number of nodes that have their values ready.
- */
- static int num_nodes_ready;
- /**
- * @brief Number of nodes that have their values ready.
- */
- static int num_nodes_ready_shutdown;
- /**
- * @brief Create a new #ValueSet
- *
- * @param subsystem Subsystem of the valueset.
- * @param name Name of the valueset.
- * @param num_values Number of values in valueset - number of peers.
- * @param is_persistent Persistence status of values.
- *
- * @return Newly allocated #ValueSet.
- */
- static struct ValueSet *
- new_value_set (const char *subsystem,
- const char *name,
- unsigned num_values,
- int is_persistent)
- {
- struct ValueSet *value_set;
- value_set = GNUNET_new (struct ValueSet);
- value_set->subsystem = GNUNET_strdup (subsystem);
- value_set->name = GNUNET_strdup (name);
- value_set->values = GNUNET_new_array (num_values, uint64_t);
- value_set->is_persistent = persistent;
- return value_set;
- }
- /**
- * @brief Print the (collected) values.
- *
- * Implements #GNUNET_CONTAINER_HashMapIterator.
- *
- * @param cls Closure - unused
- * @param key #GNUNET_HashCode key of #GNUNET_CONTAINER_MultiHashMap iterator -
- * unused
- * @param value Values represented as #ValueSet.
- *
- * @return GNUNET_YES - continue iteration.
- */
- static int
- printer (void *cls,
- const struct GNUNET_HashCode *key,
- void *value)
- {
- struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get();
- const char *now_str;
- struct ValueSet *value_set = value;
- if (quiet == GNUNET_NO)
- {
- if (GNUNET_YES == watch)
- {
- now_str = GNUNET_STRINGS_absolute_time_to_string (now);
- FPRINTF (stdout,
- "%24s%s %s%s%12s%s %s%50s%s%s ",
- now_str,
- csv_separator,
- value_set->is_persistent ? "!" : " ",
- csv_separator,
- value_set->subsystem,
- csv_separator,
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- _(value_set->name),
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- (0 == strlen (csv_separator) ? ":": csv_separator));
- }
- else
- {
- FPRINTF (stdout,
- "%s%s%12s%s %s%50s%s%s ",
- value_set->is_persistent ? "!" : " ",
- csv_separator,
- value_set->subsystem,
- csv_separator,
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- _(value_set->name),
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- (0 == strlen (csv_separator) ? ":": csv_separator));
- }
- }
- for (unsigned i = 0; i < num_nodes; i++)
- {
- FPRINTF (stdout,
- "%16llu%s",
- (unsigned long long) value_set->values[i],
- csv_separator);
- }
- FPRINTF (stdout, "\n");
- GNUNET_free (value_set->subsystem);
- GNUNET_free (value_set->name);
- GNUNET_free (value_set->values);
- GNUNET_free (value_set);
- return GNUNET_YES;
- }
- /**
- * 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_watch (void *cls,
- const char *subsystem,
- const char *name,
- uint64_t value,
- int is_persistent)
- {
- struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get();
- const char *now_str;
- if (quiet == GNUNET_NO)
- {
- if (GNUNET_YES == watch)
- {
- now_str = GNUNET_STRINGS_absolute_time_to_string (now);
- FPRINTF (stdout,
- "%24s%s %s%s%12s%s %s%50s%s%s %16llu\n",
- now_str,
- csv_separator,
- is_persistent ? "!" : " ",
- csv_separator,
- subsystem,
- csv_separator,
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- _(name),
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- (0 == strlen (csv_separator) ? ":": csv_separator),
- (unsigned long long) value);
- }
- else
- {
- FPRINTF (stdout,
- "%s%s%12s%s %s%50s%s%s %16llu\n",
- is_persistent ? "!" : " ",
- csv_separator,
- subsystem,
- csv_separator,
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- _(name),
- (0 == strlen (csv_separator) ? "": "\""), /* quotes if csv */
- (0 == strlen (csv_separator) ? ":": csv_separator),
- (unsigned long long) value);
- }
- }
- else
- FPRINTF (stdout,
- "%llu\n",
- (unsigned long long) value);
- return GNUNET_OK;
- }
- /**
- * @brief Clean all data structures related to given node.
- *
- * Also clears global structures if we are the last node to clean.
- *
- * @param cls the index of the node
- */
- static void
- clean_node (void *cls)
- {
- const unsigned index_node = *(unsigned *) cls;
- struct GNUNET_STATISTICS_Handle *h;
- struct GNUNET_STATISTICS_GetHandle *gh;
- if ( (NULL != path_testbed) && /* were issued with -t <testbed-path> option */
- (NULL != nodes[index_node].conf) )
- {
- GNUNET_CONFIGURATION_destroy (nodes[index_node].conf);
- nodes[index_node].conf = NULL;
- }
- h = nodes[index_node].handle;
- gh = nodes[index_node].gh;
- if (NULL != gh)
- {
- GNUNET_STATISTICS_get_cancel (gh);
- gh = NULL;
- }
- if (GNUNET_YES == watch)
- {
- GNUNET_assert (GNUNET_OK ==
- GNUNET_STATISTICS_watch_cancel (h,
- subsystem,
- name,
- &printer_watch,
- &nodes[index_node].index_node));
- }
- if (NULL != h)
- {
- GNUNET_STATISTICS_destroy (h, GNUNET_NO);
- h = NULL;
- }
- num_nodes_ready_shutdown++;
- if (num_nodes == num_nodes_ready_shutdown)
- {
- GNUNET_array_grow (nodes, num_nodes, 0);
- GNUNET_CONTAINER_multihashmap_destroy (values);
- }
- }
- /**
- * @brief Print and shutdown
- *
- * @param cls unused
- */
- static void
- print_finish (void *cls)
- {
- GNUNET_CONTAINER_multihashmap_iterate (values, printer, NULL);
- GNUNET_SCHEDULER_shutdown();
- }
- /**
- * @brief Called once all statistic values are available.
- *
- * Implements #GNUNET_STATISTICS_Callback
- *
- * @param cls Closure - The index of the node.
- * @param succes Whether statistics were obtained successfully.
- */
- static void
- continuation_print (void *cls,
- int success)
- {
- const unsigned index_node = *(unsigned *) cls;
- nodes[index_node].gh = NULL;
- if (GNUNET_OK != success)
- {
- if (NULL == remote_host)
- FPRINTF (stderr,
- "%s",
- _("Failed to obtain statistics.\n"));
- else
- FPRINTF (stderr,
- _("Failed to obtain statistics from host `%s:%llu'\n"),
- remote_host,
- remote_port);
- ret = 1;
- }
- if (NULL != nodes[index_node].shutdown_task)
- {
- GNUNET_SCHEDULER_cancel (nodes[index_node].shutdown_task);
- nodes[index_node].shutdown_task = NULL;
- }
- GNUNET_SCHEDULER_add_now (clean_node, &nodes[index_node].index_node);
- num_nodes_ready++;
- if (num_nodes_ready == num_nodes)
- {
- GNUNET_SCHEDULER_add_now (print_finish, NULL);
- }
- }
- /**
- * 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)
- {
- for (unsigned i = 0; i < num_nodes; i++)
- {
- nodes[i].gh = NULL;
- }
- if (GNUNET_OK != success)
- {
- if (NULL == remote_host)
- FPRINTF (stderr,
- "%s",
- _("Failed to obtain statistics.\n"));
- else
- FPRINTF (stderr,
- _("Failed to obtain statistics from host `%s:%llu'\n"),
- remote_host,
- remote_port);
- ret = 1;
- }
- GNUNET_SCHEDULER_shutdown ();
- }
- /**
- * @brief Iterate over statistics values and store them in #values.
- * They will be printed once all are available.
- *
- * @param cls Cosure - Node index.
- * @param subsystem Subsystem of the value.
- * @param name Name of the value.
- * @param value Value itself.
- * @param is_persistent Persistence.
- *
- * @return GNUNET_OK - continue.
- */
- static int
- collector (void *cls,
- const char *subsystem,
- const char *name,
- uint64_t value,
- int is_persistent)
- {
- const unsigned index_node = *(unsigned *) cls;
- struct GNUNET_HashCode *key;
- struct GNUNET_HashCode hc;
- char *subsys_name;
- unsigned len_subsys_name;
- struct ValueSet *value_set;
- len_subsys_name = strlen (subsystem) + 3 + strlen (name) + 1;
- subsys_name = GNUNET_malloc (len_subsys_name);
- SPRINTF (subsys_name, "%s---%s", subsystem, name);
- key = &hc;
- GNUNET_CRYPTO_hash (subsys_name, len_subsys_name, key);
- GNUNET_free (subsys_name);
- if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains (values, key))
- {
- // get
- value_set = GNUNET_CONTAINER_multihashmap_get (values, key);
- }
- else
- {
- // new
- value_set = new_value_set (subsystem, name, num_nodes, is_persistent);
- }
- // write
- value_set->values[index_node] = value;
- // put
- GNUNET_CONTAINER_multihashmap_put (values, key, value_set,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- return GNUNET_OK;
- }
- /**
- * Main task that does the actual work.
- *
- * @param cls closure with our configuration
- */
- static void
- main_task (void *cls)
- {
- unsigned index_node = *(unsigned *) cls;
- const struct GNUNET_CONFIGURATION_Handle *cfg = nodes[index_node].conf;
- if (set_value)
- {
- if (NULL == subsystem)
- {
- FPRINTF (stderr,
- "%s",
- _("Missing argument: subsystem \n"));
- ret = 1;
- return;
- }
- if (NULL == name)
- {
- FPRINTF (stderr,
- "%s",
- _("Missing argument: name\n"));
- ret = 1;
- return;
- }
- nodes[index_node].handle = GNUNET_STATISTICS_create (subsystem,
- cfg);
- if (NULL == nodes[index_node].handle)
- {
- ret = 1;
- return;
- }
- GNUNET_STATISTICS_set (nodes[index_node].handle,
- name,
- (uint64_t) set_val,
- persistent);
- GNUNET_STATISTICS_destroy (nodes[index_node].handle,
- GNUNET_YES);
- nodes[index_node].handle = NULL;
- return;
- }
- if (NULL == (nodes[index_node].handle = GNUNET_STATISTICS_create ("gnunet-statistics",
- cfg)))
- {
- ret = 1;
- return;
- }
- if (GNUNET_NO == watch)
- {
- if (NULL ==
- (nodes[index_node].gh = GNUNET_STATISTICS_get (nodes[index_node].handle,
- subsystem,
- name,
- &continuation_print,
- &collector,
- &nodes[index_node].index_node)) )
- cleanup (nodes[index_node].handle,
- GNUNET_SYSERR);
- }
- else
- {
- if ( (NULL == subsystem) ||
- (NULL == name) )
- {
- printf (_("No subsystem or name given\n"));
- GNUNET_STATISTICS_destroy (nodes[index_node].handle,
- GNUNET_NO);
- nodes[index_node].handle = NULL;
- ret = 1;
- return;
- }
- if (GNUNET_OK !=
- GNUNET_STATISTICS_watch (nodes[index_node].handle,
- subsystem,
- name,
- &printer_watch,
- &nodes[index_node].index_node))
- {
- fprintf (stderr,
- _("Failed to initialize watch routine\n"));
- nodes[index_node].shutdown_task =
- GNUNET_SCHEDULER_add_now (&clean_node,
- &nodes[index_node].index_node);
- return;
- }
- }
- nodes[index_node].shutdown_task =
- GNUNET_SCHEDULER_add_shutdown (&clean_node,
- &nodes[index_node].index_node);
- }
- /**
- * @brief Iter over content of a node's directory to check for existence of a
- * config file.
- *
- * Implements #GNUNET_FileNameCallback
- *
- * @param cls pointer to indicate success
- * @param filename filename inside the directory of the potential node
- *
- * @return to continue iteration or not to
- */
- static int
- iter_check_config (void *cls,
- const char *filename)
- {
- if (0 == strncmp (GNUNET_STRINGS_get_short_name (filename), "config", 6))
- {
- /* Found the config - stop iteration successfully */
- GNUNET_array_grow (nodes, num_nodes, num_nodes+1);
- nodes[num_nodes-1].conf = GNUNET_CONFIGURATION_create();
- nodes[num_nodes-1].index_node = num_nodes-1;
- if (GNUNET_OK != GNUNET_CONFIGURATION_load (nodes[num_nodes-1].conf, filename))
- {
- FPRINTF (stderr, "Failed loading config `%s'\n", filename);
- return GNUNET_SYSERR;
- }
- return GNUNET_NO;
- }
- else
- {
- /* Continue iteration */
- return GNUNET_OK;
- }
- }
- /**
- * @brief Iterates over filenames in testbed directory.
- *
- * Implements #GNUNET_FileNameCallback
- *
- * Checks if the file is a directory for a testbed node
- * and counts the nodes.
- *
- * @param cls counter of nodes
- * @param filename full path of the file in testbed
- *
- * @return status whether to continue iteration
- */
- static int
- iter_testbed_path (void *cls,
- const char *filename)
- {
- unsigned index_node;
- GNUNET_assert (NULL != filename);
- if (1 == SSCANF (GNUNET_STRINGS_get_short_name (filename),
- "%u",
- &index_node))
- {
- if (-1 == GNUNET_DISK_directory_scan (filename,
- iter_check_config,
- NULL))
- {
- /* This is probably no directory for a testbed node
- * Go on with iteration */
- return GNUNET_OK;
- }
- return GNUNET_OK;
- }
- return GNUNET_OK;
- }
- /**
- * @brief Count the number of nodes running in the testbed
- *
- * @param path_testbed path to the testbed data
- *
- * @return number of running nodes
- */
- static int
- discover_testbed_nodes (const char *path_testbed)
- {
- int num_dir_entries;
- num_dir_entries = GNUNET_DISK_directory_scan (path_testbed,
- iter_testbed_path,
- NULL);
- if (-1 == num_dir_entries)
- {
- FPRINTF (stderr,
- "Failure during scanning directory `%s'\n",
- path_testbed);
- return -1;
- }
- return 0;
- }
- /**
- * 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_CONFIGURATION_Handle *c;
- c = (struct GNUNET_CONFIGURATION_Handle *) cfg;
- set_value = GNUNET_NO;
- if (NULL == csv_separator) csv_separator = "";
- if (NULL != args[0])
- {
- if (1 != SSCANF (args[0],
- "%llu",
- &set_val))
- {
- FPRINTF (stderr,
- _("Invalid argument `%s'\n"),
- args[0]);
- ret = 1;
- return;
- }
- set_value = GNUNET_YES;
- }
- if (NULL != remote_host)
- {
- if (0 == remote_port)
- {
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg,
- "statistics",
- "PORT",
- &remote_port))
- {
- FPRINTF (stderr,
- _("A port is required to connect to host `%s'\n"),
- remote_host);
- return;
- }
- }
- else if (65535 <= remote_port)
- {
- FPRINTF (stderr,
- _("A port has to be between 1 and 65535 to connect to host `%s'\n"),
- remote_host);
- return;
- }
- /* Manipulate configuration */
- GNUNET_CONFIGURATION_set_value_string (c,
- "statistics",
- "UNIXPATH",
- "");
- GNUNET_CONFIGURATION_set_value_string (c,
- "statistics",
- "HOSTNAME",
- remote_host);
- GNUNET_CONFIGURATION_set_value_number (c,
- "statistics",
- "PORT",
- remote_port);
- }
- if (NULL == path_testbed)
- {
- values = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
- GNUNET_array_grow (nodes, num_nodes, 1);
- nodes[0].index_node = 0;
- nodes[0].conf = c;
- GNUNET_SCHEDULER_add_now (&main_task, &nodes[0].index_node);
- }
- else
- {
- if (GNUNET_YES == watch)
- {
- printf (_("Not able to watch testbed nodes (yet - feel free to implement)\n"));
- ret = 1;
- return;
- }
- values = GNUNET_CONTAINER_multihashmap_create (4, GNUNET_NO);
- if (-1 == discover_testbed_nodes (path_testbed))
- {
- return;
- }
- /* For each config/node collect statistics */
- for (unsigned i = 0; i < num_nodes; i++)
- {
- GNUNET_SCHEDULER_add_now (&main_task,
- &nodes[i].index_node);
- }
- }
- }
- /**
- * 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)
- {
- struct GNUNET_GETOPT_CommandLineOption options[] = {
- GNUNET_GETOPT_option_string ('n',
- "name",
- "NAME",
- gettext_noop ("limit output to statistics for the given NAME"),
- &name),
- GNUNET_GETOPT_option_flag ('p',
- "persistent",
- gettext_noop ("make the value being set persistent"),
- &persistent),
- GNUNET_GETOPT_option_string ('s',
- "subsystem",
- "SUBSYSTEM",
- gettext_noop ("limit output to the given SUBSYSTEM"),
- &subsystem),
- GNUNET_GETOPT_option_string ('S',
- "csv-separator",
- "CSV_SEPARATOR",
- gettext_noop ("use as csv separator"),
- &csv_separator),
- GNUNET_GETOPT_option_filename ('t',
- "testbed",
- "TESTBED",
- gettext_noop ("path to the folder containing the testbed data"),
- &path_testbed),
- GNUNET_GETOPT_option_flag ('q',
- "quiet",
- gettext_noop ("just print the statistics value"),
- &quiet),
- GNUNET_GETOPT_option_flag ('w',
- "watch",
- gettext_noop ("watch value continuously"),
- &watch),
- GNUNET_GETOPT_option_string ('r',
- "remote",
- "REMOTE",
- gettext_noop ("connect to remote host"),
- &remote_host),
- GNUNET_GETOPT_option_ulong ('o',
- "port",
- "PORT",
- gettext_noop ("port for remote host"),
- &remote_port),
- GNUNET_GETOPT_OPTION_END
- };
- remote_port = 0;
- remote_host = NULL;
- if (GNUNET_OK !=
- GNUNET_STRINGS_get_utf8_args (argc, argv,
- &argc, &argv))
- return 2;
- ret = (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc,
- argv,
- "gnunet-statistics [options [value]]",
- gettext_noop
- ("Print statistics about GNUnet operations."),
- options,
- &run,
- NULL)) ? ret : 1;
- GNUNET_free_non_null (remote_host);
- GNUNET_free ((void*) argv);
- return ret;
- }
- /* end of gnunet-statistics.c */
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