/*
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
*/
static const struct GNUNET_CONFIGURATION_Handle *cfg;
+/**
+ * Path to sensor definitions directory
+ */
+static char *sensor_dir;
+
/**
* Hashmap of loaded sensor definitions
*/
/**
* Handle to statistics service
*/
-struct GNUNET_STATISTICS_Handle *statistics;
+static struct GNUNET_STATISTICS_Handle *statistics;
/**
* Handle to peerstore service
*/
-struct GNUNET_PEERSTORE_Handle *peerstore;
+static struct GNUNET_PEERSTORE_Handle *peerstore;
/**
* Service name
*/
-char *subsystem = "sensor";
+static char *subsystem = "sensor";
/**
* My peer id
*/
-struct GNUNET_PeerIdentity peerid;
+static struct GNUNET_PeerIdentity peerid;
+
+
+/**
+ * Resets the service by stopping components, reloading sensors and starting
+ * components. This is needed when we receive new sensor updates.
+ */
+static void
+reset ();
+
/**
* Change the state of the sensor.
static void
set_sensor_enabled (struct GNUNET_SENSOR_SensorInfo *sensor, int state)
{
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "Sensor `%s': Setting enabled to %d.\n",
- sensor->name, state);
+ 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_CONFIGURATION_set_value_string (sensor->cfg, sensor->name, "ENABLED",
(GNUNET_YES == state) ? "YES" : "NO");
GNUNET_CONFIGURATION_write (sensor->cfg, sensor->def_file);
}
+
+/**
+ * Stops components and destroys sensors
+ */
+static void
+stop ()
+{
+ SENSOR_update_stop ();
+ SENSOR_analysis_stop ();
+ SENSOR_reporting_value_stop ();
+ SENSOR_reporting_anomaly_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);
+ stop ();
if (NULL != statistics)
{
GNUNET_STATISTICS_destroy (statistics, GNUNET_YES);
GNUNET_PEERSTORE_disconnect (peerstore, GNUNET_YES);
peerstore = NULL;
}
+ if (NULL != sensor_dir)
+ {
+ GNUNET_free (sensor_dir);
+ sensor_dir = NULL;
+ }
GNUNET_SCHEDULER_shutdown ();
}
* @param client identification of the client
*/
static void
-handle_client_disconnect (void *cls,
- struct GNUNET_SERVER_Client *client)
+handle_client_disconnect (void *cls, struct GNUNET_SERVER_Client *client)
{
}
+
/**
* 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)
+should_run_sensor (struct GNUNET_SENSOR_SensorInfo *sensorinfo)
{
struct GNUNET_TIME_Absolute now;
- if(GNUNET_NO == sensorinfo->enabled)
+ if (GNUNET_NO == sensorinfo->enabled)
{
- GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Sensor `%s' is disabled, will not run\n", sensorinfo->name);
+ 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)
+ 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);
+ 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)
+ 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);
+ 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 ss 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)
+static 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;
+ 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 */
+ 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 success #GNUNET_OK if statistics were
* successfully obtained, #GNUNET_SYSERR if not.
*/
-void end_sensor_run_stat (void *cls, int success)
+static void
+end_sensor_run_stat (void *cls, int success)
{
struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
sensorinfo->running = GNUNET_NO;
}
+
/**
* Tries to parse a received sensor value to its
* expected datatype
* @return size of new parsed value, 0 for error
*/
static size_t
-parse_sensor_value (const char *value,
- struct GNUNET_SENSOR_SensorInfo *sensor,
+parse_sensor_value (const char *value, struct GNUNET_SENSOR_SensorInfo *sensor,
void **ret)
{
double *dval;
*ret = NULL;
if ('\0' == *value)
return 0;
- if(0 == strcmp("numeric", sensor->expected_datatype))
+ if (0 == strcmp ("numeric", sensor->expected_datatype))
{
- dval = GNUNET_new(double);
- *dval = strtod(value, &endptr);
- if(value == endptr)
+ dval = GNUNET_new (double);
+
+ *dval = strtod (value, &endptr);
+ if (value == endptr)
return 0;
- *ret = dval;
- return sizeof(double);
+ *ret = dval;
+ return sizeof (double);
}
- if(0 == strcmp("string", sensor->expected_datatype))
+ if (0 == strcmp ("string", sensor->expected_datatype))
{
- *ret = GNUNET_strdup(value);
- return strlen(value) + 1;
+ *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"));
+ 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
+sensor_process_callback (void *cls, const char *line)
{
struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
void *value;
size_t valsize;
struct GNUNET_TIME_Absolute expiry;
- if(NULL == line)
+ if (NULL == line)
{
- GNUNET_OS_command_stop(sensorinfo->ext_cmd);
+ 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? */
+ 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);
+ _("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);
+ 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);
}
}
+
/**
* Checks if the given file is a path
*
* @return #GNUNET_YES / #GNUNET_NO
*/
static int
-is_path(char *filename)
+is_path (char *filename)
{
size_t filename_len;
int i;
- filename_len = strlen(filename);
- for(i = 0; i < filename_len; i++)
+ filename_len = strlen (filename);
+ for (i = 0; i < filename_len; i++)
{
- if(DIR_SEPARATOR == filename[i])
+ if (DIR_SEPARATOR == filename[i])
return GNUNET_YES;
}
return GNUNET_NO;
}
+
/**
* Actual execution of a sensor
*
* @param cls 'struct SensorInfo'
* @param tc unsed
*/
-void
-sensor_run (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext * tc)
+static void
+sensor_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_SENSOR_SensorInfo *sensorinfo = cls;
int check_result;
- char *sensors_dir;
char *process_path;
- sensorinfo->execution_task = GNUNET_SCHEDULER_add_delayed(sensorinfo->interval, &sensor_run, sensorinfo);
- if(GNUNET_YES == sensorinfo->running) //FIXME: should we try to kill?
+ sensorinfo->execution_task =
+ GNUNET_SCHEDULER_add_delayed (sensorinfo->interval, &sensor_run,
+ sensorinfo);
+ if (GNUNET_YES == sensorinfo->running) //FIXME: should we try to kill?
{
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sensor `%s' running for too long, will try again next interval\n", sensorinfo->name);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Sensor `%s' running for too long, will try again next interval\n",
+ sensorinfo->name);
return;
}
- if(GNUNET_NO == should_run_sensor(sensorinfo))
+ 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))
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Starting the execution of sensor `%s'\n", sensorinfo->name);
+ if (0 == strcmp ("gnunet-statistics", sensorinfo->source))
{
- 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);
+ 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);
}
- else if(0 == strcmp ("process", sensorinfo->source))
+ else if (0 == strcmp ("process", sensorinfo->source))
{
- if(GNUNET_YES == is_path(sensorinfo->ext_process))
+ 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);
+ 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);
+ process_path = GNUNET_strdup (sensorinfo->ext_process);
check_result =
- GNUNET_OS_check_helper_binary(process_path, GNUNET_NO, NULL);
- if(GNUNET_SYSERR == 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);
+ GNUNET_free (process_path);
+ GNUNET_asprintf (&process_path, "%s%s-files%s%s", sensor_dir,
+ sensorinfo->name, DIR_SEPARATOR_STR,
+ sensorinfo->ext_process);
+ GNUNET_free (sensor_dir);
check_result =
- GNUNET_OS_check_helper_binary(process_path, GNUNET_NO, NULL);
+ GNUNET_OS_check_helper_binary (process_path, GNUNET_NO, NULL);
}
- if(GNUNET_SYSERR == check_result)
+ 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);
+ 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);
+ 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);
+ 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);
}
else
{
sensorinfo->running = GNUNET_NO;
- GNUNET_break(0); //shouldn't happen
+ GNUNET_break (0); /* shouldn't happen */
}
}
+
/**
* Starts the execution of a sensor
*
* iterate,
* #GNUNET_NO if not.
*/
-int schedule_sensor(void *cls,
- const struct GNUNET_HashCode *key, void *value)
+static 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))
+ 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)
+ 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)
{
- GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
- _("Sensor `%s' execution task already set, this should not happen\n"), sensorinfo->name);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _
+ ("Sensor `%s' execution task already set, this should not happen\n"),
+ sensorinfo->name);
return GNUNET_NO;
}
- sensorinfo->execution_task = GNUNET_SCHEDULER_add_delayed(sensorinfo->interval, &sensor_run, sensorinfo);
+ sensorinfo->execution_task =
+ GNUNET_SCHEDULER_add_delayed (sensorinfo->interval, &sensor_run,
+ sensorinfo);
return GNUNET_YES;
}
+
/**
* Starts the execution of all enabled sensors
- *
*/
static void
-schedule_all_sensors()
+schedule_all_sensors ()
+{
+ GNUNET_CONTAINER_multihashmap_iterate (sensors, &schedule_sensor, NULL);
+}
+
+
+/**
+ * Loads sensors and starts different service components
+ */
+static void
+start ()
{
- GNUNET_CONTAINER_multihashmap_iterate(sensors, &schedule_sensor, NULL);
+ sensors = GNUNET_SENSOR_load_all_sensors (sensor_dir);
+ schedule_all_sensors ();
+ SENSOR_reporting_value_start (cfg, sensors);
+ SENSOR_reporting_anomaly_start (cfg, sensors);
+ SENSOR_analysis_start (cfg, sensors);
+ SENSOR_update_start (cfg, sensors, &reset);
}
+
/**
* Process statistics requests.
*
* @param c configuration to use
*/
static void
-run (void *cls,
- struct GNUNET_SERVER_Handle *server,
+run (void *cls, struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *c)
{
static const struct GNUNET_SERVER_MessageHandler handlers[] = {
};
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);
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_filename (cfg, "SENSOR", "SENSOR_DIR",
+ &sensor_dir))
+ sensor_dir = GNUNET_SENSOR_get_default_sensor_dir ();
+ 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);
+ GNUNET_SERVER_disconnect_notify (server, &handle_client_disconnect, NULL);
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
+ NULL);
+ start ();
+}
+
+
+/**
+ * Resets the service by stopping components, reloading sensors and starting
+ * components. This is needed when we receive new sensor updates.
+ */
+static void
+reset ()
+{
+ 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 */