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- /*
- This file is part of GNUnet.
- (C) 2009, 2010, 2012 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-service-statistics.c
- * @brief program that tracks statistics
- * @author Christian Grothoff
- */
- #include "platform.h"
- #include "gnunet_bio_lib.h"
- #include "gnunet_container_lib.h"
- #include "gnunet_disk_lib.h"
- #include "gnunet_getopt_lib.h"
- #include "gnunet_protocols.h"
- #include "gnunet_service_lib.h"
- #include "gnunet_statistics_service.h"
- #include "gnunet_strings_lib.h"
- #include "gnunet_time_lib.h"
- #include "statistics.h"
- /**
- * Watch entry.
- */
- struct WatchEntry
- {
- /**
- * Watch entries are kept in a linked list.
- */
- struct WatchEntry *next;
- /**
- * Watch entries are kept in a linked list.
- */
- struct WatchEntry *prev;
- /**
- * For which client is this watch entry?
- */
- struct GNUNET_SERVER_Client *client;
- /**
- * Last value we communicated to the client for this watch entry.
- */
- uint64_t last_value;
- /**
- * Unique watch number for this client and this watched value.
- */
- uint32_t wid;
- /**
- * Is last_value valid
- * GNUNET_NO : last_value is n/a, GNUNET_YES: last_value is valid
- */
- int last_value_set;
- };
- /**
- * Client entry.
- */
- struct ClientEntry
- {
- /**
- * Clients are kept in a linked list.
- */
- struct ClientEntry *next;
- /**
- * Clients are kept in a linked list.
- */
- struct ClientEntry *prev;
- /**
- * Corresponding server handle.
- */
- struct GNUNET_SERVER_Client *client;
- /**
- * Maximum watch ID used by this client so far.
- */
- uint32_t max_wid;
- };
- /**
- * Entry in the statistics list.
- */
- struct StatsEntry
- {
- /**
- * This is a linked list.
- */
- struct StatsEntry *next;
- /**
- * Name of the service, points into the
- * middle of msg.
- */
- const char *service;
- /**
- * Name for the value, points into
- * the middle of msg.
- */
- const char *name;
- /**
- * Message that can be used to set this value,
- * stored at the end of the memory used by
- * this struct.
- */
- struct GNUNET_STATISTICS_SetMessage *msg;
- /**
- * Watch context for changes to this
- * value, or NULL for none.
- */
- struct WatchEntry *we_head;
- /**
- * Watch context for changes to this
- * value, or NULL for none.
- */
- struct WatchEntry *we_tail;
- /**
- * Our value.
- */
- uint64_t value;
- /**
- * Unique ID.
- */
- uint32_t uid;
- /**
- * Is this value persistent?
- */
- int persistent;
- /**
- * Is this value set?
- * GNUNET_NO : value is n/a, GNUNET_YES: value is valid
- */
- int set;
- };
- /**
- * Our configuration.
- */
- static const struct GNUNET_CONFIGURATION_Handle *cfg;
- /**
- * Linked list of our active statistics.
- */
- static struct StatsEntry *start;
- /**
- * Head of linked list of connected clients.
- */
- static struct ClientEntry *client_head;
- /**
- * Tail of linked list of connected clients.
- */
- static struct ClientEntry *client_tail;
- /**
- * Handle to our server.
- */
- static struct GNUNET_SERVER_Handle *srv;
- /**
- * Our notification context.
- */
- static struct GNUNET_SERVER_NotificationContext *nc;
- /**
- * Counter used to generate unique values.
- */
- static uint32_t uidgen;
- /**
- * Set to YES if we are shutting down as soon as possible.
- */
- static int in_shutdown;
- /**
- * Inject a message to our server with a client of 'NULL'.
- *
- * @param cls the 'struct GNUNET_SERVER_Handle'
- * @param client unused
- * @param msg message to inject
- */
- static int
- inject_message (void *cls, void *client, const struct GNUNET_MessageHeader *msg)
- {
- struct GNUNET_SERVER_Handle *server = cls;
- GNUNET_break (GNUNET_OK == GNUNET_SERVER_inject (server, NULL, msg));
- return GNUNET_OK;
- }
- /**
- * Load persistent values from disk. Disk format is
- * exactly the same format that we also use for
- * setting the values over the network.
- *
- * @param server handle to the server context
- */
- static void
- load (struct GNUNET_SERVER_Handle *server)
- {
- char *fn;
- struct GNUNET_BIO_ReadHandle *rh;
- uint64_t fsize;
- char *buf;
- struct GNUNET_SERVER_MessageStreamTokenizer *mst;
- char *emsg;
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (cfg,
- "STATISTICS",
- "DATABASE",
- &fn))
- {
- GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
- "STATISTICS",
- "DATABASE");
- return;
- }
- if ( (GNUNET_OK !=
- GNUNET_DISK_file_size (fn, &fsize, GNUNET_NO, GNUNET_YES)) ||
- (0 == fsize) )
- {
- GNUNET_free (fn);
- return;
- }
- buf = GNUNET_malloc (fsize);
- rh = GNUNET_BIO_read_open (fn);
- if (!rh)
- {
- GNUNET_free (buf);
- GNUNET_free (fn);
- return;
- }
- if (GNUNET_OK != GNUNET_BIO_read (rh, fn, buf, fsize))
- {
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "read", fn);
- GNUNET_break (GNUNET_OK == GNUNET_BIO_read_close (rh, &emsg));
- GNUNET_free (buf);
- GNUNET_free_non_null (emsg);
- GNUNET_free (fn);
- return;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Loading %llu bytes of statistics from `%s'\n"),
- fsize, fn);
- mst = GNUNET_SERVER_mst_create (&inject_message, server);
- GNUNET_break (GNUNET_OK ==
- GNUNET_SERVER_mst_receive (mst, NULL, buf, fsize,
- GNUNET_YES, GNUNET_NO));
- GNUNET_SERVER_mst_destroy (mst);
- GNUNET_free (buf);
- GNUNET_break (GNUNET_OK == GNUNET_BIO_read_close (rh, &emsg));
- GNUNET_free_non_null (emsg);
- GNUNET_free (fn);
- }
- /**
- * Write persistent statistics to disk.
- */
- static void
- save ()
- {
- struct StatsEntry *pos;
- char *fn;
- struct GNUNET_BIO_WriteHandle *wh;
- uint16_t size;
- unsigned long long total;
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (cfg,
- "STATISTICS",
- "DATABASE",
- &fn))
- {
- GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
- "STATISTICS",
- "DATABASE");
- return;
- }
- (void) GNUNET_DISK_directory_create_for_file (fn);
- wh = GNUNET_BIO_write_open (fn);
- total = 0;
- while (NULL != (pos = start))
- {
- start = pos->next;
- if ((pos->persistent) && (NULL != wh))
- {
- size = htons (pos->msg->header.size);
- if (GNUNET_OK != GNUNET_BIO_write (wh, pos->msg, size))
- {
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "write", fn);
- if (GNUNET_OK != GNUNET_BIO_write_close (wh))
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "close", fn);
- wh = NULL;
- }
- else
- total += size;
- }
- GNUNET_free (pos);
- }
- if (NULL != wh)
- {
- if (GNUNET_OK != GNUNET_BIO_write_close (wh))
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "close", fn);
- if (total == 0)
- GNUNET_break (0 == UNLINK (fn));
- else
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Wrote %llu bytes of statistics to `%s'\n"), total, fn);
- }
- GNUNET_free_non_null (fn);
- }
- /**
- * Transmit the given stats value.
- *
- * @param client receiver of the value
- * @param e value to transmit
- */
- static void
- transmit (struct GNUNET_SERVER_Client *client, const struct StatsEntry *e)
- {
- struct GNUNET_STATISTICS_ReplyMessage *m;
- size_t size;
- size =
- sizeof (struct GNUNET_STATISTICS_ReplyMessage) + strlen (e->service) + 1 +
- strlen (e->name) + 1;
- GNUNET_assert (size < GNUNET_SERVER_MAX_MESSAGE_SIZE);
- m = GNUNET_malloc (size);
- m->header.type = htons (GNUNET_MESSAGE_TYPE_STATISTICS_VALUE);
- m->header.size = htons (size);
- m->uid = htonl (e->uid);
- if (e->persistent)
- m->uid |= htonl (GNUNET_STATISTICS_PERSIST_BIT);
- m->value = GNUNET_htonll (e->value);
- size -= sizeof (struct GNUNET_STATISTICS_ReplyMessage);
- GNUNET_assert (size ==
- GNUNET_STRINGS_buffer_fill ((char *) &m[1], size, 2,
- e->service, e->name));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Transmitting value for `%s:%s' (%d): %llu\n", e->service,
- e->name, e->persistent, e->value);
- GNUNET_SERVER_notification_context_unicast (nc, client, &m->header,
- GNUNET_NO);
- GNUNET_free (m);
- }
- /**
- * Does this entry match the request?
- *
- * @param e an entry
- * @param service name of service to match
- * @param name value to match
- * @return 1 if they match, 0 if not
- */
- static int
- matches (const struct StatsEntry *e, const char *service, const char *name)
- {
- return ((0 == strlen (service)) || (0 == strcmp (service, e->service))) &&
- ((0 == strlen (name)) || (0 == strcmp (name, e->name)));
- }
- /**
- * Find a client entry for the given client handle, or create one.
- *
- * @param client handle to match
- * @return corresponding client entry struct
- */
- static struct ClientEntry *
- make_client_entry (struct GNUNET_SERVER_Client *client)
- {
- struct ClientEntry *ce;
- GNUNET_assert (client != NULL);
- ce = client_head;
- while (ce != NULL)
- {
- if (ce->client == client)
- return ce;
- ce = ce->next;
- }
- if (NULL == nc)
- {
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return NULL;
- }
- ce = GNUNET_new (struct ClientEntry);
- ce->client = client;
- GNUNET_CONTAINER_DLL_insert (client_head, client_tail, ce);
- GNUNET_SERVER_notification_context_add (nc, client);
- return ce;
- }
- /**
- * Handle GET-message.
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- * @return GNUNET_OK to keep the connection open,
- * GNUNET_SYSERR to close it (signal serious error)
- */
- static void
- handle_get (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
- {
- struct GNUNET_MessageHeader end;
- char *service;
- char *name;
- struct StatsEntry *pos;
- size_t size;
- if ( (NULL != client) &&
- (NULL == make_client_entry (client)) )
- return; /* new client during shutdown */
- size = ntohs (message->size) - sizeof (struct GNUNET_MessageHeader);
- if (size !=
- GNUNET_STRINGS_buffer_tokenize ((const char *) &message[1], size, 2,
- &service, &name))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received request for statistics on `%s:%s'\n",
- strlen (service) ? service : "*", strlen (name) ? name : "*");
- for (pos = start; NULL != pos; pos = pos->next)
- if (matches (pos, service, name))
- transmit (client, pos);
- end.size = htons (sizeof (struct GNUNET_MessageHeader));
- end.type = htons (GNUNET_MESSAGE_TYPE_STATISTICS_END);
- GNUNET_SERVER_notification_context_unicast (nc, client, &end, GNUNET_NO);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- }
- /**
- * Notify all clients listening about a change to a value.
- *
- * @param se value that changed
- */
- static void
- notify_change (struct StatsEntry *se)
- {
- struct GNUNET_STATISTICS_WatchValueMessage wvm;
- struct WatchEntry *pos;
- for (pos = se->we_head; NULL != pos; pos = pos->next)
- {
- if (GNUNET_YES == pos->last_value_set)
- {
- if (pos->last_value == se->value)
- continue;
- }
- else
- {
- pos->last_value_set = GNUNET_YES;
- }
- wvm.header.type = htons (GNUNET_MESSAGE_TYPE_STATISTICS_WATCH_VALUE);
- wvm.header.size =
- htons (sizeof (struct GNUNET_STATISTICS_WatchValueMessage));
- wvm.flags = htonl (se->persistent ? GNUNET_STATISTICS_PERSIST_BIT : 0);
- wvm.wid = htonl (pos->wid);
- wvm.reserved = htonl (0);
- wvm.value = GNUNET_htonll (se->value);
- GNUNET_SERVER_notification_context_unicast (nc, pos->client, &wvm.header,
- GNUNET_NO);
- pos->last_value = se->value;
- }
- }
- /**
- * Handle SET-message.
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- */
- static void
- handle_set (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
- {
- char *service;
- char *name;
- uint16_t msize;
- uint16_t size;
- const struct GNUNET_STATISTICS_SetMessage *msg;
- struct StatsEntry *pos;
- struct StatsEntry *prev;
- uint32_t flags;
- uint64_t value;
- int64_t delta;
- int changed;
- int initial_set;
- if ( (NULL != client) &&
- (NULL == make_client_entry (client)) )
- return; /* new client during shutdown */
- msize = ntohs (message->size);
- if (msize < sizeof (struct GNUNET_STATISTICS_SetMessage))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- size = msize - sizeof (struct GNUNET_STATISTICS_SetMessage);
- msg = (const struct GNUNET_STATISTICS_SetMessage *) message;
- if (size !=
- GNUNET_STRINGS_buffer_tokenize ((const char *) &msg[1], size, 2, &service,
- &name))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- flags = ntohl (msg->flags);
- value = GNUNET_ntohll (msg->value);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received request to update statistic on `%s:%s' (%u) to/by %llu\n",
- service, name, (unsigned int) flags, (unsigned long long) value);
- pos = start;
- prev = NULL;
- while (pos != NULL)
- {
- if (matches (pos, service, name))
- {
- initial_set = 0;
- if ((flags & GNUNET_STATISTICS_SETFLAG_RELATIVE) == 0)
- {
- changed = (pos->value != value);
- pos->value = value;
- }
- else
- {
- delta = (int64_t) value;
- if ((delta < 0) && (pos->value < -delta))
- {
- changed = (pos->value != 0);
- pos->value = 0;
- }
- else
- {
- changed = (delta != 0);
- GNUNET_break ((delta <= 0) || (pos->value + delta > pos->value));
- pos->value += delta;
- }
- }
- if (GNUNET_NO == pos->set)
- {
- pos->set = GNUNET_YES;
- initial_set = 1;
- }
- pos->msg->value = GNUNET_htonll (pos->value);
- pos->msg->flags = msg->flags;
- pos->persistent = (0 != (flags & GNUNET_STATISTICS_SETFLAG_PERSISTENT));
- if (prev != NULL)
- {
- /* move to front for faster setting next time! */
- prev->next = pos->next;
- pos->next = start;
- start = pos;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Statistic `%s:%s' updated to value %llu.\n", service, name,
- pos->value);
- if ((changed) || (1 == initial_set))
- notify_change (pos);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- prev = pos;
- pos = pos->next;
- }
- pos = GNUNET_malloc (sizeof (struct StatsEntry) + msize);
- pos->next = start;
- if (((flags & GNUNET_STATISTICS_SETFLAG_RELATIVE) == 0) ||
- (0 < (int64_t) GNUNET_ntohll (msg->value)))
- {
- pos->value = GNUNET_ntohll (msg->value);
- pos->set = GNUNET_YES;
- }
- else
- {
- pos->set = GNUNET_NO;
- }
- pos->uid = uidgen++;
- pos->persistent = (0 != (flags & GNUNET_STATISTICS_SETFLAG_PERSISTENT));
- pos->msg = (void *) &pos[1];
- memcpy (pos->msg, message, ntohs (message->size));
- pos->service = (const char *) &pos->msg[1];
- pos->name = &pos->service[strlen (pos->service) + 1];
- start = pos;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "New statistic on `%s:%s' with value %llu created.\n", service,
- name, pos->value);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- }
- /**
- * Handle WATCH-message.
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- */
- static void
- handle_watch (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
- {
- char *service;
- char *name;
- uint16_t msize;
- uint16_t size;
- struct StatsEntry *pos;
- struct ClientEntry *ce;
- struct WatchEntry *we;
- size_t slen;
- if (NULL == nc)
- {
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- GNUNET_SERVER_client_mark_monitor (client);
- ce = make_client_entry (client);
- msize = ntohs (message->size);
- if (msize < sizeof (struct GNUNET_MessageHeader))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- size = msize - sizeof (struct GNUNET_MessageHeader);
- if (size !=
- GNUNET_STRINGS_buffer_tokenize ((const char *) &message[1], size, 2,
- &service, &name))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received request to watch statistic on `%s:%s'\n", service,
- name);
- pos = start;
- while (pos != NULL)
- {
- if (matches (pos, service, name))
- break;
- pos = pos->next;
- }
- if (pos == NULL)
- {
- pos =
- GNUNET_malloc (sizeof (struct StatsEntry) +
- sizeof (struct GNUNET_STATISTICS_SetMessage) + size);
- pos->next = start;
- pos->uid = uidgen++;
- pos->set = GNUNET_NO;
- pos->msg = (void *) &pos[1];
- pos->msg->header.size =
- htons (sizeof (struct GNUNET_STATISTICS_SetMessage) + size);
- pos->msg->header.type = htons (GNUNET_MESSAGE_TYPE_STATISTICS_SET);
- pos->service = (const char *) &pos->msg[1];
- slen = strlen (service) + 1;
- memcpy ((void *) pos->service, service, slen);
- pos->name = &pos->service[slen];
- memcpy ((void *) pos->name, name, strlen (name) + 1);
- start = pos;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "New statistic on `%s:%s' with value %llu created.\n", service,
- name, pos->value);
- }
- we = GNUNET_new (struct WatchEntry);
- we->client = client;
- we->last_value_set = GNUNET_NO;
- we->wid = ce->max_wid++;
- GNUNET_CONTAINER_DLL_insert (pos->we_head, pos->we_tail, we);
- if (pos->value != 0)
- notify_change (pos);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- }
- /**
- * Actually perform the shutdown.
- */
- static void
- do_shutdown ()
- {
- struct WatchEntry *we;
- struct StatsEntry *se;
- if (NULL == nc)
- return;
- save ();
- GNUNET_SERVER_notification_context_destroy (nc);
- nc = NULL;
- GNUNET_assert (NULL == client_head);
- while (NULL != (se = start))
- {
- start = se->next;
- while (NULL != (we = se->we_head))
- {
- GNUNET_CONTAINER_DLL_remove (se->we_head, se->we_tail, we);
- GNUNET_free (we);
- }
- GNUNET_free (se);
- }
- }
- /**
- * Task run during shutdown.
- *
- * @param cls unused
- * @param tc unused
- */
- static void
- shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- in_shutdown = GNUNET_YES;
- if (NULL != client_head)
- return;
- do_shutdown ();
- }
- /**
- * A client disconnected. Remove all of its data structure entries.
- *
- * @param cls closure, NULL
- * @param client identification of the client
- */
- static void
- handle_client_disconnect (void *cls, struct GNUNET_SERVER_Client *client)
- {
- struct ClientEntry *ce;
- struct WatchEntry *we;
- struct WatchEntry *wen;
- struct StatsEntry *se;
- ce = client_head;
- while (NULL != ce)
- {
- if (ce->client == client)
- {
- GNUNET_CONTAINER_DLL_remove (client_head, client_tail, ce);
- GNUNET_free (ce);
- break;
- }
- ce = ce->next;
- }
- se = start;
- while (NULL != se)
- {
- wen = se->we_head;
- while (NULL != (we = wen))
- {
- wen = we->next;
- if (we->client != client)
- continue;
- GNUNET_CONTAINER_DLL_remove (se->we_head, se->we_tail, we);
- GNUNET_free (we);
- }
- se = se->next;
- }
- if ( (NULL == client_head) &&
- (GNUNET_YES == in_shutdown) )
- do_shutdown ();
- }
- /**
- * Process statistics requests.
- *
- * @param cls closure
- * @param server the initialized server
- * @param c configuration to use
- */
- static void
- run (void *cls, struct GNUNET_SERVER_Handle *server,
- const struct GNUNET_CONFIGURATION_Handle *c)
- {
- static const struct GNUNET_SERVER_MessageHandler handlers[] = {
- {&handle_set, NULL, GNUNET_MESSAGE_TYPE_STATISTICS_SET, 0},
- {&handle_get, NULL, GNUNET_MESSAGE_TYPE_STATISTICS_GET, 0},
- {&handle_watch, NULL, GNUNET_MESSAGE_TYPE_STATISTICS_WATCH, 0},
- {NULL, NULL, 0, 0}
- };
- cfg = c;
- srv = server;
- GNUNET_SERVER_add_handlers (server, handlers);
- nc = GNUNET_SERVER_notification_context_create (server, 16);
- GNUNET_SERVER_disconnect_notify (server, &handle_client_disconnect, NULL);
- load (server);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
- NULL);
- }
- /**
- * The main function for the statistics service.
- *
- * @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)
- {
- return (GNUNET_OK ==
- GNUNET_SERVICE_run (argc, argv, "statistics",
- GNUNET_SERVICE_OPTION_SOFT_SHUTDOWN, &run, NULL)) ? 0 : 1;
- }
- #ifdef LINUX
- #include <malloc.h>
- /**
- * MINIMIZE heap size (way below 128k) since this process doesn't need much.
- */
- void __attribute__ ((constructor)) GNUNET_ARM_memory_init ()
- {
- mallopt (M_TRIM_THRESHOLD, 4 * 1024);
- mallopt (M_TOP_PAD, 1 * 1024);
- malloc_trim (0);
- }
- #endif
- /* end of gnunet-service-statistics.c */
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