struct SensorModel
{
+ /*
+ * DLL
+ */
+ struct SensorModel *prev;
+
+ /*
+ * DLL
+ */
+ struct SensorModel *next;
+
/*
* Pointer to sensor info structure
*/
/*
* Model handle
*/
-static struct GNUNET_SENSOR_ModelFunctions *model;
-
-/**
- * Hashmap of loaded sensor definitions
- */
-static struct GNUNET_CONTAINER_MultiHashMap *sensors;
+static struct GNUNET_SENSOR_ModelFunctions *model_api;
/*
* Handle to peerstore service
static const char *analysis_datatypes[] = { "uint64", "double", NULL };
/*
- * MultiHashmap of all sensor models
+ * Head of DLL of created models
+ */
+static struct SensorModel *models_head;
+
+/*
+ * Tail of DLL of created models
*/
-static struct GNUNET_CONTAINER_MultiHashMap *sensor_models;
+static struct SensorModel *models_tail;
/**
* My peer id
struct GNUNET_PeerIdentity peerid;
/*
- * TODO: document
+ * Destroy a created model
*/
-static int
-destroy_sensor_model (void *cls,
- const struct GNUNET_HashCode *key,
- void *value)
+static void
+destroy_sensor_model (struct SensorModel *sensor_model)
{
- struct SensorModel *sensor_model = value;
-
- if (NULL == sensor_model)
- return GNUNET_YES;
+ GNUNET_assert (NULL != sensor_model);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Destroying sensor model for `%s'.\n",
sensor_model->sensor->name);
GNUNET_PEERSTORE_watch_cancel(sensor_model->wc);
sensor_model->wc = NULL;
}
- return GNUNET_YES;
+ sensor_model = NULL;
}
/*
*/
void SENSOR_analysis_stop()
{
+ struct SensorModel *sm;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Stopping sensor analysis module.\n");
- if (NULL != model)
+ if (NULL != model_api)
{
- GNUNET_break (NULL == GNUNET_PLUGIN_unload (model_lib_name, model));
+ GNUNET_break (NULL == GNUNET_PLUGIN_unload (model_lib_name, model_api));
GNUNET_free (model_lib_name);
model_lib_name = NULL;
}
- if (NULL != sensor_models)
+ while (NULL != models_head)
{
- GNUNET_CONTAINER_multihashmap_iterate(sensor_models, &destroy_sensor_model, NULL);
- GNUNET_CONTAINER_multihashmap_destroy(sensor_models);
- sensor_models = NULL;
+ sm = models_head;
+ destroy_sensor_model(sm);
+ GNUNET_CONTAINER_DLL_remove(models_head, models_tail, sm);
}
if (NULL != peerstore)
{
}
/*
- * TODO: document
+ * Sensor value watch callback
*/
static int
sensor_watcher (void *cls,
}
/*
- * TODO: document
+ * Iterator for defined sensors
+ * Creates sensor model for numeric sensors
+ *
+ * @param cls unused
+ * @param key unused
+ * @param value a 'struct SensorInfo *' with sensor information
+ * @return #GNUNET_YES to continue iterations
*/
static int
init_sensor_model (void *cls,
sensor_model->wc = GNUNET_PEERSTORE_watch(peerstore,
"sensor", &peerid, sensor->name,
&sensor_watcher, sensor_model);
- GNUNET_CONTAINER_multihashmap_put(sensor_models, key,
- sensor_model, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+ GNUNET_CONTAINER_DLL_insert(models_head, models_tail, sensor_model);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Created sensor model for `%s'.\n", sensor->name);
return GNUNET_YES;
* Start the sensor analysis module
*
* @param c our service configuration
- * @param sensors_mhm multihashmap of loaded sensors
+ * @param sensors multihashmap of loaded sensors
* @return #GNUNET_OK if started successfully, #GNUNET_SYSERR otherwise
*/
int
SENSOR_analysis_start(const struct GNUNET_CONFIGURATION_Handle *c,
- struct GNUNET_CONTAINER_MultiHashMap *sensors_mhm)
+ struct GNUNET_CONTAINER_MultiHashMap *sensors)
{
char *model_name;
+ GNUNET_assert(NULL != sensors);
cfg = c;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg, "sensor-analysis", "MODEL",
return GNUNET_SYSERR;
}
GNUNET_asprintf (&model_lib_name, "libgnunet_plugin_sensor_model_%s", model_name);
- model = GNUNET_PLUGIN_load(model_lib_name, (void *) cfg);
+ model_api = GNUNET_PLUGIN_load(model_lib_name, (void *) cfg);
GNUNET_free(model_name);
- if(NULL == model)
+ if(NULL == model_api)
{
LOG (GNUNET_ERROR_TYPE_ERROR, _("Could not load analysis model `%s'.\n"), model_lib_name);
return GNUNET_SYSERR;
}
- sensors = sensors_mhm;
- if (NULL == sensors)
- {
- LOG (GNUNET_ERROR_TYPE_ERROR, _("Tried to start analysis before loading sensors.\n"));
- SENSOR_analysis_stop();
- return GNUNET_SYSERR;
- }
peerstore = GNUNET_PEERSTORE_connect(cfg);
if (NULL == peerstore)
{
return GNUNET_SYSERR;
}
GNUNET_CRYPTO_get_peer_identity(cfg, &peerid);
- sensor_models = GNUNET_CONTAINER_multihashmap_create(10, GNUNET_NO);
GNUNET_CONTAINER_multihashmap_iterate(sensors, &init_sensor_model, NULL);
return GNUNET_OK;