/*
This file is part of GNUnet.
- (C)
+ (C)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
* @brief sensor service implementation
* @author Omar Tarabai
*/
-#include <inttypes.h>
#include "platform.h"
#include "gnunet_util_lib.h"
#include "sensor.h"
-#include "gnunet_statistics_service.h"
-#include "gnunet_peerstore_service.h"
/**
* Our configuration.
*/
static const struct GNUNET_CONFIGURATION_Handle *cfg;
+/**
+ * Path to sensor definitions directory
+ */
+static char *sensor_dir;
+
/**
* Hashmap of loaded sensor definitions
*/
static struct GNUNET_CONTAINER_MultiHashMap *sensors;
/**
- * Handle to statistics service
+ * Start the monitoring module ?
*/
-struct GNUNET_STATISTICS_Handle *statistics;
+static int start_monitoring;
/**
- * Handle to peerstore service
+ * Start the analysis module ?
*/
-struct GNUNET_PEERSTORE_Handle *peerstore;
+static int start_analysis;
/**
- * Service name
+ * Start the reporting module ?
*/
-char *subsystem = "sensor";
+static int start_reporting;
/**
- * My peer id
+ * Start the update module ?
*/
-struct GNUNET_PeerIdentity peerid;
+static int start_update;
+
/**
- * Change the state of the sensor.
- * Write the change to file to make it persistent.
- *
- * @param sensor sensor info struct
- * @param state new enabled state: #GNUNET_YES / #GNUNET_NO
+ * Resets the service by stopping components, reloading sensors and starting
+ * components. This is needed when we receive new sensor updates.
+ */
+static void
+reset ();
+
+
+/**
+ * Stops components and destroys sensors
*/
static void
-set_sensor_enabled (struct GNUNET_SENSOR_SensorInfo *sensor, int state)
+stop ()
{
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "Sensor `%s': Setting enabled to %d.\n",
- sensor->name, state);
- sensor->enabled = GNUNET_NO;
- GNUNET_assert (NULL != sensor->cfg);
- GNUNET_CONFIGURATION_set_value_string (sensor->cfg,
- sensor->name,
- "ENABLED",
- (GNUNET_YES == state) ? "YES" : "NO");
- GNUNET_CONFIGURATION_write (sensor->cfg, sensor->def_file);
+ if (GNUNET_YES == start_update)
+ SENSOR_update_stop ();
+ if (GNUNET_YES == start_analysis)
+ SENSOR_analysis_stop ();
+ if (GNUNET_YES == start_reporting)
+ SENSOR_reporting_stop ();
+ if (GNUNET_YES == start_monitoring)
+ SENSOR_monitoring_stop ();
+ GNUNET_SENSOR_destroy_sensors (sensors);
}
+
/**
* Task run during shutdown.
*
* @param tc unused
*/
static void
-shutdown_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- SENSOR_update_stop ();
- SENSOR_reporting_stop ();
- SENSOR_analysis_stop ();
- GNUNET_SENSOR_destroy_sensors (sensors);
- if (NULL != statistics)
+ stop ();
+ if (NULL != sensor_dir)
{
- GNUNET_STATISTICS_destroy (statistics, GNUNET_YES);
- statistics = NULL;
- }
- if (NULL != peerstore)
- {
- GNUNET_PEERSTORE_disconnect (peerstore, GNUNET_YES);
- peerstore = NULL;
+ GNUNET_free (sensor_dir);
+ sensor_dir = NULL;
}
GNUNET_SCHEDULER_shutdown ();
}
/**
- * A client disconnected. Remove all of its data structure entries.
+ * Handle a force anomaly request from client.
*
- * @param cls closure, NULL
+ * @param cls closure
* @param client identification of the client
+ * @param message the actual message
*/
static void
-handle_client_disconnect (void *cls,
- struct GNUNET_SERVER_Client *client)
+handle_anomaly_force (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
{
+ struct ForceAnomalyMessage *anomaly_msg;
+ struct GNUNET_SENSOR_SensorInfo *sensor;
+
+ anomaly_msg = (struct ForceAnomalyMessage *) message;
+ sensor =
+ GNUNET_CONTAINER_multihashmap_get (sensors,
+ &anomaly_msg->sensor_name_hash);
+ if (NULL == sensor)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Force anomaly message received for a sensor we don't have.\n");
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ SENSOR_reporting_anomaly_update (sensor, ntohs (anomaly_msg->anomalous));
+ GNUNET_SERVER_receive_done (client, GNUNET_YES);
}
+
/**
* Creates a structure with basic sensor info to be sent to a client.
*
size_t desc_len;
char *str_ptr;
- name_len = strlen(sensor->name);
- if(NULL == sensor->description)
+ name_len = strlen (sensor->name);
+ if (NULL == sensor->description)
desc_len = 0;
else
- desc_len = strlen(sensor->description) + 1;
+ desc_len = strlen (sensor->description) + 1;
len = 0;
- len += sizeof(struct SensorInfoMessage);
+ len += sizeof (struct SensorInfoMessage);
len += name_len;
len += desc_len;
- msg = GNUNET_malloc(len);
- msg->header.size = htons(len);
- msg->header.type = htons(GNUNET_MESSAGE_TYPE_SENSOR_INFO);
- msg->name_len = htons(name_len);
- msg->description_len = htons(desc_len);
- msg->version_major = htons(sensor->version_major);
- msg->version_minor = htons(sensor->version_minor);
- str_ptr = (char*) &msg[1];
- memcpy(str_ptr, sensor->name, name_len);
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Sending sensor name (%d): %.*s\n",
- name_len, name_len, str_ptr);
+ msg = GNUNET_malloc (len);
+ msg->header.size = htons (len);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_SENSOR_INFO);
+ msg->name_len = htons (name_len);
+ msg->description_len = htons (desc_len);
+ msg->version_major = htons (sensor->version_major);
+ msg->version_minor = htons (sensor->version_minor);
+ str_ptr = (char *) &msg[1];
+ memcpy (str_ptr, sensor->name, name_len);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending sensor name (%d): %.*s\n",
+ name_len, name_len, str_ptr);
str_ptr += name_len;
- memcpy(str_ptr, sensor->description, desc_len);
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Sending sensor description (%d): %.*s\n",
- desc_len, desc_len, str_ptr);
-
+ memcpy (str_ptr, sensor->description, desc_len);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Sending sensor description (%d): %.*s\n", desc_len, desc_len,
+ str_ptr);
return msg;
}
+
/**
* Handle GET SENSOR message.
*
* @param message the actual message
*/
static void
-handle_get_sensor (void *cls,
- struct GNUNET_SERVER_Client *client,
+handle_get_sensor (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
struct GNUNET_SERVER_TransmitContext *tc;
struct GNUNET_SENSOR_SensorInfo *sensorinfo;
struct SensorInfoMessage *msg;
- sensorname = (char *)&message[1];
- sensorname_len = ntohs(message->size) - sizeof(struct GNUNET_MessageHeader);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "`%s' message received for sensor (%d) `%.*s'\n",
- "GET SENSOR", sensorname_len, sensorname_len, sensorname);
+ sensorname = (char *) &message[1];
+ sensorname_len = ntohs (message->size) - sizeof (struct GNUNET_MessageHeader);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "`%s' message received for sensor (%d) `%.*s'\n", "GET SENSOR",
+ sensorname_len, sensorname_len, sensorname);
tc = GNUNET_SERVER_transmit_context_create (client);
- GNUNET_CRYPTO_hash(sensorname, sensorname_len, &key);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created key hash for requested sensor\n");
- sensorinfo = (struct GNUNET_SENSOR_SensorInfo *)GNUNET_CONTAINER_multihashmap_get(sensors, &key);
- if(NULL != sensorinfo)
+ GNUNET_CRYPTO_hash (sensorname, sensorname_len, &key);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Created key hash for requested sensor\n");
+ sensorinfo =
+ (struct GNUNET_SENSOR_SensorInfo *)
+ GNUNET_CONTAINER_multihashmap_get (sensors, &key);
+ if (NULL != sensorinfo)
{
- msg = create_sensor_info_msg(sensorinfo);
- GNUNET_SERVER_transmit_context_append_message(tc, (struct GNUNET_MessageHeader *)msg);
- GNUNET_free(msg);
+ msg = create_sensor_info_msg (sensorinfo);
+ GNUNET_SERVER_transmit_context_append_message (tc,
+ (struct GNUNET_MessageHeader
+ *) msg);
+ GNUNET_free (msg);
}
else
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Requested sensor `%.*s' was not found\n",
- sensorname_len, sensorname);
- GNUNET_SERVER_transmit_context_append_data(tc, NULL, 0, GNUNET_MESSAGE_TYPE_SENSOR_END);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Requested sensor `%.*s' was not found\n", sensorname_len,
+ sensorname);
+ GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
+ GNUNET_MESSAGE_TYPE_SENSOR_END);
GNUNET_SERVER_transmit_context_run (tc, GNUNET_TIME_UNIT_FOREVER_REL);
}
+
/**
* Iterator for sensors and adds them to transmit context
*
* @param key hash of sensor name, key to hashmap
* @param value a `struct GNUNET_SENSOR_SensorInfo *`
*/
-int add_sensor_to_tc (void *cls,
- const struct GNUNET_HashCode *key,
- void *value)
+static int
+add_sensor_to_tc (void *cls, const struct GNUNET_HashCode *key, void *value)
{
struct GNUNET_SERVER_TransmitContext *tc = cls;
struct GNUNET_SENSOR_SensorInfo *sensorinfo = value;
struct SensorInfoMessage *msg;
- msg = create_sensor_info_msg(sensorinfo);
- GNUNET_SERVER_transmit_context_append_message(tc, (struct GNUNET_MessageHeader *)msg);
-
- GNUNET_free(msg);
+ msg = create_sensor_info_msg (sensorinfo);
+ GNUNET_SERVER_transmit_context_append_message (tc,
+ (struct GNUNET_MessageHeader *)
+ msg);
+ GNUNET_free (msg);
return GNUNET_YES;
}
+
/**
* Handle GET ALL SENSORS message.
*
*/
static void
handle_get_all_sensors (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
+ const struct GNUNET_MessageHeader *message)
{
struct GNUNET_SERVER_TransmitContext *tc;
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "`%s' message received.\n",
- "GET ALL SENSOR");
+ "GET ALL SENSOR");
tc = GNUNET_SERVER_transmit_context_create (client);
- GNUNET_CONTAINER_multihashmap_iterate(sensors, &add_sensor_to_tc, tc);
- GNUNET_SERVER_transmit_context_append_data(tc, NULL, 0, GNUNET_MESSAGE_TYPE_SENSOR_END);
+ GNUNET_CONTAINER_multihashmap_iterate (sensors, &add_sensor_to_tc, tc);
+ GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
+ GNUNET_MESSAGE_TYPE_SENSOR_END);
GNUNET_SERVER_transmit_context_run (tc, GNUNET_TIME_UNIT_FOREVER_REL);
}
-/**
- * Do a series of checks to determine if sensor should execute
- *
- * @return #GNUNET_YES / #GNUNET_NO
- */
-static int
-should_run_sensor(struct GNUNET_SENSOR_SensorInfo *sensorinfo)
-{
- struct GNUNET_TIME_Absolute now;
-
- if(GNUNET_NO == sensorinfo->enabled)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Sensor `%s' is disabled, will not run\n", sensorinfo->name);
- return GNUNET_NO;
- }
- now = GNUNET_TIME_absolute_get();
- if(NULL != sensorinfo->start_time
- && now.abs_value_us < sensorinfo->start_time->abs_value_us)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Start time for sensor `%s' not reached yet, will not run\n", sensorinfo->name);
- return GNUNET_NO;
- }
- if(NULL != sensorinfo->end_time
- && now.abs_value_us >= sensorinfo->end_time->abs_value_us)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Sensor `%s' expired, disabling.\n", sensorinfo->name);
- set_sensor_enabled(sensorinfo, GNUNET_NO);
- return GNUNET_NO;
- }
- return GNUNET_YES;
-}
-
-/**
- * Callback function to process statistic values
- *
- * @param cls `struct GNUNET_SENSOR_SensorInfo *`
- * @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
- */
-int sensor_statistics_iterator (void *cls,
- const char *ss,
- const char *name,
- uint64_t value,
- int is_persistent)
-{
- struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
- double dvalue = (double)value;
- struct GNUNET_TIME_Absolute expiry;
-
- GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Received a value for sensor `%s': %" PRIu64 "\n", sensorinfo->name, value);
- expiry = GNUNET_TIME_relative_to_absolute(sensorinfo->lifetime);
- GNUNET_PEERSTORE_store(peerstore,
- subsystem,
- &peerid,
- sensorinfo->name,
- &dvalue,
- sizeof(dvalue),
- expiry,
- GNUNET_PEERSTORE_STOREOPTION_MULTIPLE,
- NULL,
- NULL);
- return GNUNET_SYSERR; /* We only want one value */
-}
/**
- * Continuation called after sensor gets all gnunet statistics values
- *
- * @param cls `struct GNUNET_SENSOR_SensorInfo *`
- * @param success #GNUNET_OK if statistics were
- * successfully obtained, #GNUNET_SYSERR if not.
+ * Loads sensors and starts different service components
*/
-void end_sensor_run_stat (void *cls, int success)
-{
- struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
-
- sensorinfo->gnunet_stat_get_handle = NULL;
- sensorinfo->running = GNUNET_NO;
-}
-
-/**
- * Tries to parse a received sensor value to its
- * expected datatype
- *
- * @param value the string value received, should be null terminated
- * @param sensor sensor information struct
- * @param ret pointer to parsed value
- * @return size of new parsed value, 0 for error
- */
-static size_t
-parse_sensor_value (const char *value,
- struct GNUNET_SENSOR_SensorInfo *sensor,
- void **ret)
-{
- double *dval;
- char *endptr;
-
- *ret = NULL;
- if ('\0' == *value)
- return 0;
- if(0 == strcmp("numeric", sensor->expected_datatype))
- {
- dval = GNUNET_new(double);
- *dval = strtod(value, &endptr);
- if(value == endptr)
- return 0;
- *ret = dval;
- return sizeof(double);
- }
- if(0 == strcmp("string", sensor->expected_datatype))
- {
- *ret = GNUNET_strdup(value);
- return strlen(value) + 1;
- }
- GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
- _("Unknown value type expected by sensor, this should not happen.\n"));
- return 0;
-}
-
-/**
- * Callback for output of executed sensor process
- *
- * @param cls `struct GNUNET_SENSOR_SensorInfo *`
- * @param line line of output from a command, NULL for the end
- */
-void sensor_process_callback (void *cls, const char *line)
+static void
+start ()
{
- struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
- void *value;
- size_t valsize;
- struct GNUNET_TIME_Absolute expiry;
-
- if(NULL == line)
- {
- GNUNET_OS_command_stop(sensorinfo->ext_cmd);
- sensorinfo->ext_cmd = NULL;
- sensorinfo->running = GNUNET_NO;
- sensorinfo->ext_cmd_value_received = GNUNET_NO;
- return;
- }
- if(GNUNET_YES == sensorinfo->ext_cmd_value_received)
- return; /* We only want one *valid* value */
- GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Received a value for sensor `%s': %s\n", sensorinfo->name, line);
- valsize = parse_sensor_value(line, sensorinfo, &value);
- if (valsize == 0) /* invalid value, FIXME: should we disable the sensor now? */
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Received an invalid value for sensor `%s': %s\n"),
- sensorinfo->name, line);
- }
- else
- {
- sensorinfo->ext_cmd_value_received = GNUNET_YES;
- expiry = GNUNET_TIME_relative_to_absolute(sensorinfo->lifetime);
- GNUNET_PEERSTORE_store(peerstore,
- subsystem,
- &peerid,
- sensorinfo->name,
- value,
- valsize,
- expiry,
- GNUNET_PEERSTORE_STOREOPTION_MULTIPLE,
- NULL,
- NULL);
- GNUNET_free (value);
- }
+ sensors = GNUNET_SENSOR_load_all_sensors (sensor_dir);
+ if (GNUNET_YES == start_monitoring)
+ SENSOR_monitoring_start (cfg, sensors);
+ if (GNUNET_YES == start_reporting)
+ SENSOR_reporting_start (cfg, sensors);
+ if (GNUNET_YES == start_analysis)
+ SENSOR_analysis_start (cfg, sensors);
+ if (GNUNET_YES == start_update)
+ SENSOR_update_start (cfg, sensors, &reset);
}
-/**
- * Checks if the given file is a path
- *
- * @return #GNUNET_YES / #GNUNET_NO
- */
-static int
-is_path(char *filename)
-{
- size_t filename_len;
- int i;
-
- filename_len = strlen(filename);
- for(i = 0; i < filename_len; i++)
- {
- if(DIR_SEPARATOR == filename[i])
- return GNUNET_YES;
- }
- return GNUNET_NO;
-}
/**
- * Actual execution of a sensor
+ * Process statistics requests.
*
- * @param cls 'struct SensorInfo'
- * @param tc unsed
+ * @param cls closure
+ * @param server the initialized server
+ * @param c configuration to use
*/
-void
-sensor_run (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext * tc)
+static void
+run (void *cls, struct GNUNET_SERVER_Handle *server,
+ const struct GNUNET_CONFIGURATION_Handle *c)
{
- struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
- int check_result;
- char *sensors_dir;
- char *process_path;
+ static const struct GNUNET_SERVER_MessageHandler handlers[] = {
+ {&handle_get_sensor, NULL, GNUNET_MESSAGE_TYPE_SENSOR_GET,
+ 0},
+ {&handle_get_all_sensors, NULL, GNUNET_MESSAGE_TYPE_SENSOR_GETALL,
+ sizeof (struct GNUNET_MessageHeader)},
+ {
+ &handle_anomaly_force, NULL, GNUNET_MESSAGE_TYPE_SENSOR_ANOMALY_FORCE,
+ sizeof (struct ForceAnomalyMessage)},
+ {NULL, NULL, 0, 0}
+ };
- sensorinfo->execution_task = GNUNET_SCHEDULER_add_delayed(sensorinfo->interval, &sensor_run, sensorinfo);
- if(GNUNET_YES == sensorinfo->running) //FIXME: should we try to kill?
+ cfg = c;
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_filename (cfg, "sensor", "SENSOR_DIR",
+ &sensor_dir))
{
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sensor `%s' running for too long, will try again next interval\n", sensorinfo->name);
- return;
+ sensor_dir = GNUNET_SENSOR_get_default_sensor_dir ();
}
- if(GNUNET_NO == should_run_sensor(sensorinfo))
- return;
- sensorinfo->running = GNUNET_YES;
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Starting the execution of sensor `%s'\n", sensorinfo->name);
- if(0 == strcmp ("gnunet-statistics", sensorinfo->source))
+ start_monitoring = GNUNET_YES;
+ start_analysis = GNUNET_YES;
+ start_reporting = GNUNET_YES;
+ start_update = GNUNET_YES;
+ if (GNUNET_NO ==
+ GNUNET_CONFIGURATION_get_value_yesno (cfg, "sensor", "START_MONITORING"))
{
- sensorinfo->gnunet_stat_get_handle = GNUNET_STATISTICS_get(statistics,
- sensorinfo->gnunet_stat_service,
- sensorinfo->gnunet_stat_name,
- sensorinfo->interval, //try to get values only for the interval of the sensor
- &end_sensor_run_stat,
- &sensor_statistics_iterator,
- sensorinfo);
+ start_monitoring = GNUNET_NO;
}
- else if(0 == strcmp ("process", sensorinfo->source))
+ if (GNUNET_NO ==
+ GNUNET_CONFIGURATION_get_value_yesno (cfg, "sensor", "START_REPORTING"))
{
- if(GNUNET_YES == is_path(sensorinfo->ext_process))
- {
- GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
- _("Sensor `%s': External process should not be a path, disabling sensor.\n"),
- sensorinfo->name);
- set_sensor_enabled(sensorinfo, GNUNET_NO);
- return;
- }
- //check if the process exists in $PATH
- process_path = GNUNET_strdup(sensorinfo->ext_process);
- check_result =
- GNUNET_OS_check_helper_binary(process_path, GNUNET_NO, NULL);
- if(GNUNET_SYSERR == check_result)
- {
- //search in sensor directory
- sensors_dir = GNUNET_SENSOR_get_sensor_dir ();
- GNUNET_free(process_path);
- GNUNET_asprintf(&process_path, "%s%s-files%s%s",
- sensors_dir,
- sensorinfo->name,
- DIR_SEPARATOR_STR,
- sensorinfo->ext_process);
- GNUNET_free(sensors_dir);
- check_result =
- GNUNET_OS_check_helper_binary(process_path, GNUNET_NO, NULL);
- }
- if(GNUNET_SYSERR == check_result)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
- _("Sensor `%s' process `%s' problem: binary doesn't exist or not executable\n"),
- sensorinfo->name,
- sensorinfo->ext_process);
- set_sensor_enabled(sensorinfo, GNUNET_NO);
- sensorinfo->running = GNUNET_NO;
- GNUNET_free(process_path);
- return;
- }
- sensorinfo->ext_cmd_value_received = GNUNET_NO;
- sensorinfo->ext_cmd = GNUNET_OS_command_run(&sensor_process_callback,
- sensorinfo,
- GNUNET_TIME_UNIT_FOREVER_REL,
- process_path,
- sensorinfo->ext_process,
- sensorinfo->ext_args,
- NULL);
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Process started for sensor `%s'\n", sensorinfo->name);
- GNUNET_free(process_path);
+ start_reporting = GNUNET_NO;
}
- else
+ if (GNUNET_NO ==
+ GNUNET_CONFIGURATION_get_value_yesno (cfg, "sensor", "START_ANALYSIS"))
{
- sensorinfo->running = GNUNET_NO;
- GNUNET_break(0); //shouldn't happen
+ start_analysis = GNUNET_NO;
}
-}
-
-/**
- * Starts the execution of a sensor
- *
- * @param cls unused
- * @param key hash of sensor name, key to hashmap (unused)
- * @param value a `struct GNUNET_SENSOR_SensorInfo *`
- * @return #GNUNET_YES if we should continue to
- * iterate,
- * #GNUNET_NO if not.
- */
-int schedule_sensor(void *cls,
- const struct GNUNET_HashCode *key, void *value)
-{
- struct GNUNET_SENSOR_SensorInfo *sensorinfo = value;
-
- if(GNUNET_NO == should_run_sensor(sensorinfo))
- return GNUNET_YES;
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling sensor `%s' to run after %" PRIu64 " microseconds\n",
- sensorinfo->name, sensorinfo->interval.rel_value_us);
- if(GNUNET_SCHEDULER_NO_TASK != sensorinfo->execution_task)
+ if (GNUNET_NO ==
+ GNUNET_CONFIGURATION_get_value_yesno (cfg, "sensor", "START_UPDATE"))
{
- GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
- _("Sensor `%s' execution task already set, this should not happen\n"), sensorinfo->name);
- return GNUNET_NO;
+ start_update = GNUNET_NO;
}
- sensorinfo->execution_task = GNUNET_SCHEDULER_add_delayed(sensorinfo->interval, &sensor_run, sensorinfo);
- return GNUNET_YES;
+ GNUNET_SERVER_add_handlers (server, handlers);
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
+ NULL);
+ start ();
}
-/**
- * Starts the execution of all enabled sensors
- *
- */
-static void
-schedule_all_sensors()
-{
- GNUNET_CONTAINER_multihashmap_iterate(sensors, &schedule_sensor, NULL);
-}
/**
- * Process statistics requests.
- *
- * @param cls closure
- * @param server the initialized server
- * @param c configuration to use
+ * Resets the service by stopping components, reloading sensors and starting
+ * components. This is needed when we receive new sensor updates.
*/
static void
-run (void *cls,
- struct GNUNET_SERVER_Handle *server,
- const struct GNUNET_CONFIGURATION_Handle *c)
+reset ()
{
- static const struct GNUNET_SERVER_MessageHandler handlers[] = {
- {&handle_get_sensor, NULL, GNUNET_MESSAGE_TYPE_SENSOR_GET,
- 0},
- {&handle_get_all_sensors, NULL, GNUNET_MESSAGE_TYPE_SENSOR_GETALL,
- sizeof (struct GNUNET_MessageHeader)},
- {NULL, NULL, 0, 0}
- };
-
- cfg = c;
- sensors = GNUNET_SENSOR_load_all_sensors ();
- schedule_all_sensors();
- SENSOR_analysis_start(c, sensors);
- SENSOR_reporting_start(c, sensors);
- SENSOR_update_start (c, sensors);
- statistics = GNUNET_STATISTICS_create("sensor", cfg);
- GNUNET_CRYPTO_get_peer_identity(cfg, &peerid);
- peerstore = GNUNET_PEERSTORE_connect(cfg);
- GNUNET_SERVER_add_handlers (server, handlers);
- GNUNET_SERVER_disconnect_notify (server,
- &handle_client_disconnect,
- NULL);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
- &shutdown_task,
- NULL);
+ stop ();
+ start ();
}
main (int argc, char *const *argv)
{
return (GNUNET_OK ==
- GNUNET_SERVICE_run (argc,
- argv,
- "sensor",
- GNUNET_SERVICE_OPTION_NONE,
- &run, NULL)) ? 0 : 1;
+ GNUNET_SERVICE_run (argc, argv, "sensor", GNUNET_SERVICE_OPTION_NONE,
+ &run, NULL)) ? 0 : 1;
}
/* end of gnunet-service-sensor.c */
projects / oweals / gnunet.git / blobdiff