X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=src%2FW1Device.cc;h=4111dd9cb8c485e61733c7428e02ca7a6b230ba7;hb=cad6fd5749ae467e006bd3ae62666fe8c92cdf20;hp=a5f89dfc9f487c17df8e86adb02ec1c24fb1ac96;hpb=a7002b0a87c5f17b542dfbd44f482014a191df97;p=lib1wire.git

diff --git a/src/W1Device.cc b/src/W1Device.cc
index a5f89df..4111dd9 100644
--- a/src/W1Device.cc
+++ b/src/W1Device.cc
@@ -29,6 +29,7 @@ W1Device::W1Device(string device_id_param,
 	string device_dir;
 	string temp_str;
 
+	pthread_mutex_init(&plock, NULL);
 	type	= device_type_param;
 	id	= device_id_param;
 	if (direntry_param != NULL) {
@@ -44,35 +45,38 @@ W1Device::W1Device(string device_id_param,
 	}
 	reader	= new DataReader(id);
 	name	= "";
+	_cfg	= NULL;
 }
 
 W1Device::~W1Device() {
+	log_debug("started\n");
 	save_and_clean_cache();
-	delete(reader);
+	if (reader != NULL) {
+		delete(reader);
+		reader	= NULL;
+	}
 }
 
-string W1Device::get_name() {
-	DeviceConfig	*cfg;
-
+string Device::get_name() {
 	if (name.empty() == true) {
-		cfg	= DeviceConfig::get_device_config(id);
-		if (cfg != NULL) {
-			name	= cfg->get_cfg_value(DEVICE_CONFIG_VALUE_KEY__NAME);
-			delete(cfg);
+		if (_cfg == NULL) {
+			_cfg	= DeviceConfig::get_device_config(id);
+		}
+		if (_cfg != NULL) {
+			_cfg->get_config_value(DEVICE_CONFIG_VALUE_KEY__NAME, name);
 		}
 	}
 	return name;
 }
 
-void W1Device::set_name(string name_param) {
-	DeviceConfig	*cfg;
-
+void Device::set_name(string name_param) {
 	if (name.compare(name_param) != 0) {
 		name	= name_param;
-		cfg	= DeviceConfig::get_device_config(id);
-		if (cfg != NULL) {
-			cfg->set_cfg_value(DEVICE_CONFIG_VALUE_KEY__NAME, name_param);
-			delete(cfg);
+		if (_cfg == NULL) {
+			_cfg	= DeviceConfig::get_device_config(id);
+		}
+		if (_cfg != NULL) {
+			_cfg->set_config_value(DEVICE_CONFIG_VALUE_KEY__NAME, name_param, true);
 		}
 	}
 }
@@ -87,6 +91,7 @@ void W1Device::printout() {
 	if (data != NULL) {
 		text	= data->to_string();
 		cout << text << endl;
+		delete(data);
 	}
 	else {
 		type	= get_type();
@@ -114,36 +119,54 @@ Data *W1Device::get_data() {
 		ret_val	= new Data(vect, get_unit());
 		cache(ret_val);
 		delete(vect);
+		log_debug("%s returning new data\n", id.c_str());
 	}
 	else {
-		// read old data already saved
+		// read old already saved data
+		log_debug("%s returning old saved data\n", id.c_str());
 		ret_val	= reader->get_latest_data();
 	}
 	return ret_val;
 }
 
-void W1Device::cache(Data *data) {
-	// TODO: add mutex for memory_cache
+void W1Device::cache(Data *new_data) {
+	Data	*data;
+	int	dec_precision;
+
+	data	= new_data->clone();
+	pthread_mutex_lock(&plock);
 	memory_cache.push_back(data);
 	if (memory_cache.size() > 5) {
-		save_and_clean_cache();
+		dec_precision	= get_data_decimal_precision();
+		StoreDay::save(id, &memory_cache, dec_precision);
+		while(memory_cache.empty() == false) {
+			data	= memory_cache.back();
+			memory_cache.pop_back();
+			delete(data);
+		}
 	}
+	pthread_mutex_unlock(&plock);
 }
 
 void W1Device::save_and_clean_cache() {
-	list<Data *>::iterator	iter;
-	Data			*data;
-	int			dec_precision;
+	Data	*data;
+	int	dec_precision;
 
 	dec_precision	= get_data_decimal_precision();
+	pthread_mutex_lock(&plock);
+	/* needs to be casted to long unsigned int value is "unsigned int" in some
+           toolchains and that would otherwise cause an warning/error 
+        */
+	log_debug("memory cache size: %lu\n", (long unsigned int)memory_cache.size());
 	StoreDay::save(id, &memory_cache, dec_precision);
-	for(iter = memory_cache.begin(); iter != memory_cache.end(); iter++) {
-		data	= (Data *)*iter;
+	while(memory_cache.empty() == false) {
+		data	= memory_cache.back();
+		memory_cache.pop_back();
 		delete(data);
 	}
-	memory_cache.clear();
+	pthread_mutex_unlock(&plock);
 }
 
-DataReader *W1Device::get_device_data() {
+const DataReader *W1Device::get_datareader() {
 	return reader;
 }