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-rw-r--r--plugins/udisks2/udisks2-plugin.c91
1 files changed, 63 insertions, 28 deletions
diff --git a/plugins/udisks2/udisks2-plugin.c b/plugins/udisks2/udisks2-plugin.c
index 3bc6eef..2fe401e 100644
--- a/plugins/udisks2/udisks2-plugin.c
+++ b/plugins/udisks2/udisks2-plugin.c
@@ -81,13 +81,14 @@ const gchar *plugin_name = "udisks2";
GHashTable *devices = NULL;
/* This is a global variable for convenience */
-GDBusConnection *connection;
+GDBusConnection *connection = NULL;
static void update_device(DevInfo *info)
{
GError *error = NULL;
- GVariant *tempgvar;
+ GVariant *tempgvar = NULL;
+ GVariant *tempgvar2 = NULL;
gdouble temp;
// check valid input parameter
@@ -109,9 +110,21 @@ static void update_device(DevInfo *info)
UDISKS2_BUS_NAME,
info->path,
UDISKS2_PROPERTIES_INTERFACE,
- NULL, NULL
+ NULL, &error
);
+ // check, just to be sure
+ if (NULL == info->sensor_proxy)
+ {
+
+#ifdef UD2PD
+syslog(LOG_ERR, "Failed to get drive temperature 1");
+#endif
+ g_debug("Failed to get drive temperature 1: %s",
+ error->message);
+ g_clear_error(&error);
+ return;
+ }
}
// "DriveAtaSmartTimeCollected" in ud2 is "drive ata SmartUpdated"
@@ -180,28 +193,37 @@ static void update_device(DevInfo *info)
{
#ifdef UD2PD
-syslog(LOG_ERR, "Failed to get drive temperature");
+syslog(LOG_ERR, "Failed to get drive temperature 2");
#endif
- g_debug("Failed to get drive temperature: %s",
+ g_debug("Failed to get drive temperature 2: %s",
error->message);
- g_error_free(error);
+ g_clear_error(&error);
// throw away proxy, maybe next time it will be better
- g_object_unref(info->sensor_proxy);
+ g_clear_object(&info->sensor_proxy);
return;
}
else
{
#ifdef UD2PD
-syslog(LOG_ERR, "tempgvar value: %s", g_variant_print(g_variant_get_variant(g_variant_get_child_value(tempgvar, 0)), TRUE));
+syslog(LOG_ERR, "tempgvar value: %s", g_variant_print(tempgvar, TRUE));
+// leaks memory!
+//syslog(LOG_ERR, "tempgvar value: %s", g_variant_print(g_variant_get_variant(g_variant_get_child_value(tempgvar, 0)), TRUE));
#endif
// tempgvar comes back as sg along the lines of array(gvariant(tempasdouble))
// hence unpacking
- temp = g_variant_get_double(g_variant_get_variant(g_variant_get_child_value(tempgvar, 0)));
+ // need to free up every param / return value, so can't do it like:
+ //temp = g_variant_get_double(g_variant_get_variant(g_variant_get_child_value(tempgvar, 0)));
+ tempgvar2 = g_variant_get_child_value(tempgvar, 0);
+ g_variant_unref(tempgvar);
+ tempgvar = g_variant_get_variant(tempgvar2);
+ g_variant_unref(tempgvar2);
+ temp = g_variant_get_double(tempgvar);
+ g_variant_unref(tempgvar);
+
// temp in K
info->temp = temp - 273.15;
- g_variant_unref(tempgvar);
#ifdef UD2PD
syslog(LOG_ERR, "Refresh udisks2 device temp: '%f'\n", info->temp);
@@ -240,7 +262,7 @@ static void udisks2_plugin_get_sensors(GList **sensors) {
syslog(LOG_ERR, "fstart");
#endif
- GDBusProxy *proxy;
+ GDBusProxy *proxy = NULL;
GError *error = NULL;
DevInfo *info;
@@ -251,7 +273,7 @@ syslog(LOG_ERR, "fstart");
// fd1: Returns a connection to the given bus. The connection is a global variable shared with other callers of this function.
// fd2: Synchronously connects to the message bus specified by bus_type . Note that the returned object may shared with other callers, e.g. if two separate parts of a process calls this function with the same bus_type , they will share the same object.
connection = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &error);
- if (connection == NULL)
+ if (NULL == connection)
{
#ifdef UD2PD
@@ -260,7 +282,7 @@ syslog(LOG_ERR, "dbus conn fail");
g_debug("Failed to open connection to DBUS: %s",
error->message);
- g_error_free(error);
+ g_clear_error(&error);
return;
}
@@ -278,9 +300,22 @@ syslog(LOG_ERR, "dbus conn success");
UDISKS2_BUS_NAME,
UDISKS2_OBJECT_PATH,
UDISKS2_INTERFACE_NAME,
- NULL, NULL
+ NULL, &error
);
+ if (NULL == proxy)
+ {
+
+#ifdef UD2PD
+syslog(LOG_ERR, "dbus conn proxy fail");
+#endif
+ g_debug("dbus conn proxy fail: %s",
+ error->message);
+ g_clear_error(&error);
+ g_clear_object(&connection);
+ return;
+ }
+
#ifdef UD2PD
syslog(LOG_ERR, "dbus conn proxy success");
#endif
@@ -295,17 +330,18 @@ syslog(LOG_ERR, "dbus conn proxy success");
// "GetManagedObjects" returns dict of (objectpath, (dict of (string [ie. if. name], dict of(string [ie. property name], variant [ie. prop. value]))))
// g_dbus_proxy_call_sync() returns NULL on error, GVariant * otherwise
- GVariant *managed_objects;
+ // need second param to prevent memory leak
+ GVariant *managed_objects, *managed_objects2;
- managed_objects = g_dbus_proxy_call_sync(proxy, "GetManagedObjects",
+ managed_objects2 = g_dbus_proxy_call_sync(proxy, "GetManagedObjects",
NULL, // parameters
G_DBUS_CALL_FLAGS_NONE, // flags
-1, // timeout
NULL, // cancellable
&error);
- if (NULL == managed_objects)
+ if (NULL == managed_objects2)
{
#ifdef UD2PD
@@ -314,15 +350,15 @@ syslog(LOG_ERR, "Failed to enumerate disk devices");
g_debug("Failed to enumerate disk devices: %s",
error->message);
- g_error_free(error);
- g_object_unref(proxy);
- g_object_unref(connection);
- connection = NULL;
+ g_clear_error(&error);
+ g_clear_object(&proxy);
+ g_clear_object(&connection);
return;
}
// the result dictionary is enclosed in an array, unpack
- managed_objects = g_variant_get_child_value(managed_objects, 0);
+ managed_objects = g_variant_get_child_value(managed_objects2, 0);
+ g_variant_unref(managed_objects2);
#ifdef UD2PD
//syslog(LOG_ERR, "managed_objects type: %s", g_variant_print(managed_objects, TRUE));
@@ -412,7 +448,7 @@ syslog(LOG_ERR, "Found udisks2 device temp: '%f'\n", temp);
{
info = g_malloc0(sizeof(DevInfo));
- if (devices == NULL)
+ if (NULL == devices)
{
devices = g_hash_table_new(g_str_hash,
g_str_equal);
@@ -483,11 +519,10 @@ syslog(LOG_ERR, "b4 free3");
g_variant_unref(managed_objects);
- g_object_unref(proxy);
- if (devices == NULL)
+ g_clear_object(&proxy);
+ if (NULL == devices)
{
- g_object_unref(connection);
- connection = NULL;
+ g_clear_object(&connection);
}
}
@@ -501,7 +536,7 @@ static gdouble udisks2_plugin_get_sensor_value(const gchar *path,
// get device stuct from data store
info = (DevInfo *)g_hash_table_lookup(devices, path);
- if (info == NULL)
+ if (NULL == info)
{
g_set_error(error, SENSORS_APPLET_PLUGIN_ERROR, 0,
"Error finding disk with path %s", path);
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-08 09:20:36 +0000