[core] Constify GTimeVals and GDataColors where possible

Add const attributes to add GTimeVals and GDataColors where they're used
unmodified by a function.

20 files changed, 41 insertions, 40 deletions

diff --git a/gdata/gd/gdata-gd-reminder.c b/gdata/gd/gdata-gd-reminder.c
index c21fe345..a5d0a231 100644
--- a/gdata/gd/gdata-gd-reminder.c
+++ b/gdata/gd/gdata-gd-reminder.c
@@ -295,7 +295,7 @@ get_namespaces (GDataParsable *parsable, GHashTable *namespaces)
  * Since: 0.2.0
  **/
 GDataGDReminder *
-gdata_gd_reminder_new (const gchar *method, GTimeVal *absolute_time, gint relative_time)
+gdata_gd_reminder_new (const gchar *method, const GTimeVal *absolute_time, gint relative_time)
 {
 	g_return_val_if_fail (absolute_time == NULL || relative_time == -1, NULL);
 	return g_object_new (GDATA_TYPE_GD_REMINDER, "absolute-time", absolute_time, "relative-time", relative_time, "method", method, NULL);
@@ -413,7 +413,7 @@ gdata_gd_reminder_get_absolute_time (GDataGDReminder *self, GTimeVal *absolute_t
  * Since: 0.4.0
  **/
 void
-gdata_gd_reminder_set_absolute_time (GDataGDReminder *self, GTimeVal *absolute_time)
+gdata_gd_reminder_set_absolute_time (GDataGDReminder *self, const GTimeVal *absolute_time)
 {
 	g_return_if_fail (GDATA_IS_GD_REMINDER (self));
 
diff --git a/gdata/gd/gdata-gd-reminder.h b/gdata/gd/gdata-gd-reminder.h
index 51d95a63..3504b08c 100644
--- a/gdata/gd/gdata-gd-reminder.h
+++ b/gdata/gd/gdata-gd-reminder.h
@@ -62,14 +62,14 @@ typedef struct {
 
 GType gdata_gd_reminder_get_type (void) G_GNUC_CONST;
 
-GDataGDReminder *gdata_gd_reminder_new (const gchar *method, GTimeVal *absolute_time, gint relative_time) G_GNUC_WARN_UNUSED_RESULT;
+GDataGDReminder *gdata_gd_reminder_new (const gchar *method, const GTimeVal *absolute_time, gint relative_time) G_GNUC_WARN_UNUSED_RESULT;
 gint gdata_gd_reminder_compare (const GDataGDReminder *a, const GDataGDReminder *b);
 
 const gchar *gdata_gd_reminder_get_method (GDataGDReminder *self);
 void gdata_gd_reminder_set_method (GDataGDReminder *self, const gchar *method);
 
 void gdata_gd_reminder_get_absolute_time (GDataGDReminder *self, GTimeVal *absolute_time);
-void gdata_gd_reminder_set_absolute_time (GDataGDReminder *self, GTimeVal *absolute_time);
+void gdata_gd_reminder_set_absolute_time (GDataGDReminder *self, const GTimeVal *absolute_time);
 gboolean gdata_gd_reminder_is_absolute_time (GDataGDReminder *self);
 
 gint gdata_gd_reminder_get_relative_time (GDataGDReminder *self);
diff --git a/gdata/gd/gdata-gd-when.c b/gdata/gd/gdata-gd-when.c
index 5a7046f0..ac19cb74 100644
--- a/gdata/gd/gdata-gd-when.c
+++ b/gdata/gd/gdata-gd-when.c
@@ -379,7 +379,7 @@ get_namespaces (GDataParsable *parsable, GHashTable *namespaces)
  * Since: 0.2.0
  **/
 GDataGDWhen *
-gdata_gd_when_new (GTimeVal *start_time, GTimeVal *end_time, gboolean is_date)
+gdata_gd_when_new (const GTimeVal *start_time, const GTimeVal *end_time, gboolean is_date)
 {
 	g_return_val_if_fail (start_time != NULL, NULL);
 	return g_object_new (GDATA_TYPE_GD_WHEN, "start-time", start_time, "end-time", end_time, "is-date", is_date, NULL);
@@ -451,7 +451,7 @@ gdata_gd_when_get_start_time (GDataGDWhen *self, GTimeVal *start_time)
  * Since: 0.4.0
  **/
 void
-gdata_gd_when_set_start_time (GDataGDWhen *self, GTimeVal *start_time)
+gdata_gd_when_set_start_time (GDataGDWhen *self, const GTimeVal *start_time)
 {
 	g_return_if_fail (GDATA_IS_GD_WHEN (self));
 	g_return_if_fail (start_time != NULL);
@@ -491,7 +491,7 @@ gdata_gd_when_get_end_time (GDataGDWhen *self, GTimeVal *end_time)
  * Since: 0.4.0
  **/
 void
-gdata_gd_when_set_end_time (GDataGDWhen *self, GTimeVal *end_time)
+gdata_gd_when_set_end_time (GDataGDWhen *self, const GTimeVal *end_time)
 {
 	g_return_if_fail (GDATA_IS_GD_WHEN (self));
 
diff --git a/gdata/gd/gdata-gd-when.h b/gdata/gd/gdata-gd-when.h
index 1e191d15..cf6f1436 100644
--- a/gdata/gd/gdata-gd-when.h
+++ b/gdata/gd/gdata-gd-when.h
@@ -62,14 +62,14 @@ typedef struct {
 
 GType gdata_gd_when_get_type (void) G_GNUC_CONST;
 
-GDataGDWhen *gdata_gd_when_new (GTimeVal *start_time, GTimeVal *end_time, gboolean is_date) G_GNUC_WARN_UNUSED_RESULT;
+GDataGDWhen *gdata_gd_when_new (const GTimeVal *start_time, const GTimeVal *end_time, gboolean is_date) G_GNUC_WARN_UNUSED_RESULT;
 gint gdata_gd_when_compare (const GDataGDWhen *a, const GDataGDWhen *b);
 
 void gdata_gd_when_get_start_time (GDataGDWhen *self, GTimeVal *start_time);
-void gdata_gd_when_set_start_time (GDataGDWhen *self, GTimeVal *start_time);
+void gdata_gd_when_set_start_time (GDataGDWhen *self, const GTimeVal *start_time);
 
 void gdata_gd_when_get_end_time (GDataGDWhen *self, GTimeVal *end_time);
-void gdata_gd_when_set_end_time (GDataGDWhen *self, GTimeVal *end_time);
+void gdata_gd_when_set_end_time (GDataGDWhen *self, const GTimeVal *end_time);
 
 gboolean gdata_gd_when_is_date (GDataGDWhen *self);
 void gdata_gd_when_set_is_date (GDataGDWhen *self, gboolean is_date);
diff --git a/gdata/gdata-parser.c b/gdata/gdata-parser.c
index 7f13761f..e719c196 100644
--- a/gdata/gdata-parser.c
+++ b/gdata/gdata-parser.c
@@ -192,7 +192,7 @@ gdata_parser_time_val_from_date (const gchar *date, GTimeVal *_time)
 }
 
 gchar *
-gdata_parser_date_from_time_val (GTimeVal *_time)
+gdata_parser_date_from_time_val (const GTimeVal *_time)
 {
 	time_t secs;
 	struct tm *tm;
diff --git a/gdata/gdata-parser.h b/gdata/gdata-parser.h
index 1d3474e7..68f45553 100644
--- a/gdata/gdata-parser.h
+++ b/gdata/gdata-parser.h
@@ -32,7 +32,7 @@ gboolean gdata_parser_error_required_property_missing (xmlNode *element, const g
 gboolean gdata_parser_error_required_element_missing (const gchar *element_name, const gchar *parent_element_name, GError **error);
 gboolean gdata_parser_error_duplicate_element (xmlNode *element, GError **error);
 gboolean gdata_parser_time_val_from_date (const gchar *date, GTimeVal *_time);
-gchar *gdata_parser_date_from_time_val (GTimeVal *_time) G_GNUC_WARN_UNUSED_RESULT;
+gchar *gdata_parser_date_from_time_val (const GTimeVal *_time) G_GNUC_WARN_UNUSED_RESULT;
 void gdata_parser_string_append_escaped (GString *xml_string, const gchar *pre, const gchar *element_content, const gchar *post);
 gchar *gdata_parser_utf8_trim_whitespace (const gchar *s) G_GNUC_WARN_UNUSED_RESULT;
 
diff --git a/gdata/gdata-query.c b/gdata/gdata-query.c
index 53010c49..3df13899 100644
--- a/gdata/gdata-query.c
+++ b/gdata/gdata-query.c
@@ -763,7 +763,7 @@ gdata_query_get_updated_min (GDataQuery *self, GTimeVal *updated_min)
  * Set @updated_min to %NULL to unset the property in the query URI.
  **/
 void
-gdata_query_set_updated_min (GDataQuery *self, GTimeVal *updated_min)
+gdata_query_set_updated_min (GDataQuery *self, const GTimeVal *updated_min)
 {
 	g_return_if_fail (GDATA_IS_QUERY (self));
 
@@ -808,7 +808,7 @@ gdata_query_get_updated_max (GDataQuery *self, GTimeVal *updated_max)
  * Set @updated_max to %NULL to unset the property in the query URI.
  **/
 void
-gdata_query_set_updated_max (GDataQuery *self, GTimeVal *updated_max)
+gdata_query_set_updated_max (GDataQuery *self, const GTimeVal *updated_max)
 {
 	g_return_if_fail (GDATA_IS_QUERY (self));
 
@@ -853,7 +853,7 @@ gdata_query_get_published_min (GDataQuery *self, GTimeVal *published_min)
  * Set @published_min to %NULL to unset the property in the query URI.
  **/
 void
-gdata_query_set_published_min (GDataQuery *self, GTimeVal *published_min)
+gdata_query_set_published_min (GDataQuery *self, const GTimeVal *published_min)
 {
 	g_return_if_fail (GDATA_IS_QUERY (self));
 
@@ -898,7 +898,7 @@ gdata_query_get_published_max (GDataQuery *self, GTimeVal *published_max)
  * Set @published_max to %NULL to unset the property in the query URI.
  **/
 void
-gdata_query_set_published_max (GDataQuery *self, GTimeVal *published_max)
+gdata_query_set_published_max (GDataQuery *self, const GTimeVal *published_max)
 {
 	g_return_if_fail (GDATA_IS_QUERY (self));
 
diff --git a/gdata/gdata-query.h b/gdata/gdata-query.h
index 7e45abed..89ebf31d 100644
--- a/gdata/gdata-query.h
+++ b/gdata/gdata-query.h
@@ -73,13 +73,13 @@ void gdata_query_set_categories (GDataQuery *self, const gchar *categories);
 const gchar *gdata_query_get_author (GDataQuery *self);
 void gdata_query_set_author (GDataQuery *self, const gchar *author);
 void gdata_query_get_updated_min (GDataQuery *self, GTimeVal *updated_min);
-void gdata_query_set_updated_min (GDataQuery *self, GTimeVal *updated_min);
+void gdata_query_set_updated_min (GDataQuery *self, const GTimeVal *updated_min);
 void gdata_query_get_updated_max (GDataQuery *self, GTimeVal *updated_max);
-void gdata_query_set_updated_max (GDataQuery *self, GTimeVal *updated_max);
+void gdata_query_set_updated_max (GDataQuery *self, const GTimeVal *updated_max);
 void gdata_query_get_published_min (GDataQuery *self, GTimeVal *published_min);
-void gdata_query_set_published_min (GDataQuery *self, GTimeVal *published_min);
+void gdata_query_set_published_min (GDataQuery *self, const GTimeVal *published_min);
 void gdata_query_get_published_max (GDataQuery *self, GTimeVal *published_max);
-void gdata_query_set_published_max (GDataQuery *self, GTimeVal *published_max);
+void gdata_query_set_published_max (GDataQuery *self, const GTimeVal *published_max);
 gint gdata_query_get_start_index (GDataQuery *self);
 void gdata_query_set_start_index (GDataQuery *self, gint start_index);
 gboolean gdata_query_is_strict (GDataQuery *self);
diff --git a/gdata/gdata-types.c b/gdata/gdata-types.c
index 74f44fd1..c9e1a376 100644
--- a/gdata/gdata-types.c
+++ b/gdata/gdata-types.c
@@ -147,7 +147,7 @@ gdata_color_from_hexadecimal (const gchar *hexadecimal, GDataColor *color)
  * Since: 0.3.0
  **/
 gchar *
-gdata_color_to_hexadecimal (GDataColor *color)
+gdata_color_to_hexadecimal (const GDataColor *color)
 {
 	g_return_val_if_fail (color != NULL, NULL);
 	return g_strdup_printf ("#%02x%02x%02x", color->red, color->green, color->blue);
diff --git a/gdata/gdata-types.h b/gdata/gdata-types.h
index c650db20..fb5ebef3 100644
--- a/gdata/gdata-types.h
+++ b/gdata/gdata-types.h
@@ -45,7 +45,7 @@ typedef struct {
 #define GDATA_TYPE_COLOR (gdata_color_get_type ())
 GType gdata_color_get_type (void) G_GNUC_CONST;
 gboolean gdata_color_from_hexadecimal (const gchar *hexadecimal, GDataColor *color);
-gchar *gdata_color_to_hexadecimal (GDataColor *color) G_GNUC_WARN_UNUSED_RESULT;
+gchar *gdata_color_to_hexadecimal (const GDataColor *color) G_GNUC_WARN_UNUSED_RESULT;
 
 G_END_DECLS
 
diff --git a/gdata/services/calendar/gdata-calendar-calendar.c b/gdata/services/calendar/gdata-calendar-calendar.c
index 9b2e72d5..3e25273b 100644
--- a/gdata/services/calendar/gdata-calendar-calendar.c
+++ b/gdata/services/calendar/gdata-calendar-calendar.c
@@ -509,7 +509,7 @@ gdata_calendar_calendar_get_color (GDataCalendarCalendar *self, GDataColor *colo
  * Sets the #GDataCalendarCalendar:color property to @color.
  **/
 void
-gdata_calendar_calendar_set_color (GDataCalendarCalendar *self, GDataColor *color)
+gdata_calendar_calendar_set_color (GDataCalendarCalendar *self, const GDataColor *color)
 {
 	g_return_if_fail (GDATA_IS_CALENDAR_CALENDAR (self));
 	g_return_if_fail (color != NULL);
diff --git a/gdata/services/calendar/gdata-calendar-calendar.h b/gdata/services/calendar/gdata-calendar-calendar.h
index d54e659c..5c626bb2 100644
--- a/gdata/services/calendar/gdata-calendar-calendar.h
+++ b/gdata/services/calendar/gdata-calendar-calendar.h
@@ -67,7 +67,7 @@ guint gdata_calendar_calendar_get_times_cleaned (GDataCalendarCalendar *self);
 gboolean gdata_calendar_calendar_is_hidden (GDataCalendarCalendar *self);
 void gdata_calendar_calendar_set_is_hidden (GDataCalendarCalendar *self, gboolean is_hidden);
 void gdata_calendar_calendar_get_color (GDataCalendarCalendar *self, GDataColor *color);
-void gdata_calendar_calendar_set_color (GDataCalendarCalendar *self, GDataColor *color);
+void gdata_calendar_calendar_set_color (GDataCalendarCalendar *self, const GDataColor *color);
 gboolean gdata_calendar_calendar_is_selected (GDataCalendarCalendar *self);
 void gdata_calendar_calendar_set_is_selected (GDataCalendarCalendar *self, gboolean is_selected);
 const gchar *gdata_calendar_calendar_get_access_level (GDataCalendarCalendar *self);
diff --git a/gdata/services/calendar/gdata-calendar-query.c b/gdata/services/calendar/gdata-calendar-query.c
index 0b988c9e..9610e5b6 100644
--- a/gdata/services/calendar/gdata-calendar-query.c
+++ b/gdata/services/calendar/gdata-calendar-query.c
@@ -406,7 +406,7 @@ gdata_calendar_query_new (const gchar *q)
  * Return value: a new #GDataCalendarQuery
  **/
 GDataCalendarQuery *
-gdata_calendar_query_new_with_limits (const gchar *q, GTimeVal *start_min, GTimeVal *start_max)
+gdata_calendar_query_new_with_limits (const gchar *q, const GTimeVal *start_min, const GTimeVal *start_max)
 {
 	return g_object_new (GDATA_TYPE_CALENDAR_QUERY,
 			     "q", q,
@@ -512,7 +512,7 @@ gdata_calendar_query_get_recurrence_expansion_start (GDataCalendarQuery *self, G
  * Set @start to %NULL to unset the property in the query URI.
  **/
 void
-gdata_calendar_query_set_recurrence_expansion_start (GDataCalendarQuery *self, GTimeVal *start)
+gdata_calendar_query_set_recurrence_expansion_start (GDataCalendarQuery *self, const GTimeVal *start)
 {
 	g_return_if_fail (GDATA_IS_CALENDAR_QUERY (self));
 
@@ -556,7 +556,7 @@ gdata_calendar_query_get_recurrence_expansion_end (GDataCalendarQuery *self, GTi
  * Set @end to %NULL to unset the property in the query URI.
  **/
 void
-gdata_calendar_query_set_recurrence_expansion_end (GDataCalendarQuery *self, GTimeVal *end)
+gdata_calendar_query_set_recurrence_expansion_end (GDataCalendarQuery *self, const GTimeVal *end)
 {
 	g_return_if_fail (GDATA_IS_CALENDAR_QUERY (self));
 
@@ -670,7 +670,7 @@ gdata_calendar_query_get_start_min (GDataCalendarQuery *self, GTimeVal *start_mi
  * Set @start_min to %NULL to unset the property in the query URI.
  **/
 void
-gdata_calendar_query_set_start_min (GDataCalendarQuery *self, GTimeVal *start_min)
+gdata_calendar_query_set_start_min (GDataCalendarQuery *self, const GTimeVal *start_min)
 {
 	g_return_if_fail (GDATA_IS_CALENDAR_QUERY (self));
 
@@ -714,7 +714,7 @@ gdata_calendar_query_get_start_max (GDataCalendarQuery *self, GTimeVal *start_ma
  * Set @start_max to %NULL to unset the property in the query URI.
  **/
 void
-gdata_calendar_query_set_start_max (GDataCalendarQuery *self, GTimeVal *start_max)
+gdata_calendar_query_set_start_max (GDataCalendarQuery *self, const GTimeVal *start_max)
 {
 	g_return_if_fail (GDATA_IS_CALENDAR_QUERY (self));
 
diff --git a/gdata/services/calendar/gdata-calendar-query.h b/gdata/services/calendar/gdata-calendar-query.h
index aa9f892c..f892c2e2 100644
--- a/gdata/services/calendar/gdata-calendar-query.h
+++ b/gdata/services/calendar/gdata-calendar-query.h
@@ -60,24 +60,25 @@ typedef struct {
 GType gdata_calendar_query_get_type (void) G_GNUC_CONST;
 
 GDataCalendarQuery *gdata_calendar_query_new (const gchar *q) G_GNUC_WARN_UNUSED_RESULT;
-GDataCalendarQuery *gdata_calendar_query_new_with_limits (const gchar *q, GTimeVal *start_min, GTimeVal *start_max) G_GNUC_WARN_UNUSED_RESULT;
+GDataCalendarQuery *gdata_calendar_query_new_with_limits (const gchar *q,
+                                                          const GTimeVal *start_min, const GTimeVal *start_max) G_GNUC_WARN_UNUSED_RESULT;
 
 gboolean gdata_calendar_query_get_future_events (GDataCalendarQuery *self);
 void gdata_calendar_query_set_future_events (GDataCalendarQuery *self, gboolean future_events);
 const gchar *gdata_calendar_query_get_order_by (GDataCalendarQuery *self);
 void gdata_calendar_query_set_order_by (GDataCalendarQuery *self, const gchar *order_by);
 void gdata_calendar_query_get_recurrence_expansion_start (GDataCalendarQuery *self, GTimeVal *start);
-void gdata_calendar_query_set_recurrence_expansion_start (GDataCalendarQuery *self, GTimeVal *start);
+void gdata_calendar_query_set_recurrence_expansion_start (GDataCalendarQuery *self, const GTimeVal *start);
 void gdata_calendar_query_get_recurrence_expansion_end (GDataCalendarQuery *self, GTimeVal *end);
-void gdata_calendar_query_set_recurrence_expansion_end (GDataCalendarQuery *self, GTimeVal *end);
+void gdata_calendar_query_set_recurrence_expansion_end (GDataCalendarQuery *self, const GTimeVal *end);
 gboolean gdata_calendar_query_get_single_events (GDataCalendarQuery *self);
 void gdata_calendar_query_set_single_events (GDataCalendarQuery *self, gboolean single_events);
 const gchar *gdata_calendar_query_get_sort_order (GDataCalendarQuery *self);
 void gdata_calendar_query_set_sort_order (GDataCalendarQuery *self, const gchar *sort_order);
 void gdata_calendar_query_get_start_min (GDataCalendarQuery *self, GTimeVal *start_min);
-void gdata_calendar_query_set_start_min (GDataCalendarQuery *self, GTimeVal *start_min);
+void gdata_calendar_query_set_start_min (GDataCalendarQuery *self, const GTimeVal *start_min);
 void gdata_calendar_query_get_start_max (GDataCalendarQuery *self, GTimeVal *start_max);
-void gdata_calendar_query_set_start_max (GDataCalendarQuery *self, GTimeVal *start_max);
+void gdata_calendar_query_set_start_max (GDataCalendarQuery *self, const GTimeVal *start_max);
 const gchar *gdata_calendar_query_get_timezone (GDataCalendarQuery *self);
 void gdata_calendar_query_set_timezone (GDataCalendarQuery *self, const gchar *_timezone);
 
diff --git a/gdata/services/picasaweb/gdata-picasaweb-album.c b/gdata/services/picasaweb/gdata-picasaweb-album.c
index 0d833f9c..e745f437 100644
--- a/gdata/services/picasaweb/gdata-picasaweb-album.c
+++ b/gdata/services/picasaweb/gdata-picasaweb-album.c
@@ -923,7 +923,7 @@ gdata_picasaweb_album_get_timestamp (GDataPicasaWebAlbum *self, GTimeVal *timest
  * Since: 0.4.0
  **/
 void
-gdata_picasaweb_album_set_timestamp (GDataPicasaWebAlbum *self, GTimeVal *timestamp)
+gdata_picasaweb_album_set_timestamp (GDataPicasaWebAlbum *self, const GTimeVal *timestamp)
 {
 	g_return_if_fail (GDATA_IS_PICASAWEB_ALBUM (self));
 	if (timestamp == NULL)
diff --git a/gdata/services/picasaweb/gdata-picasaweb-album.h b/gdata/services/picasaweb/gdata-picasaweb-album.h
index d28f6b4f..8fa598c4 100644
--- a/gdata/services/picasaweb/gdata-picasaweb-album.h
+++ b/gdata/services/picasaweb/gdata-picasaweb-album.h
@@ -88,7 +88,7 @@ void gdata_picasaweb_album_set_location (GDataPicasaWebAlbum *self, const gchar
 GDataPicasaWebVisibility gdata_picasaweb_album_get_visibility (GDataPicasaWebAlbum *self);
 void gdata_picasaweb_album_set_visibility (GDataPicasaWebAlbum *self, GDataPicasaWebVisibility visibility);
 void gdata_picasaweb_album_get_timestamp (GDataPicasaWebAlbum *self, GTimeVal *timestamp);
-void gdata_picasaweb_album_set_timestamp (GDataPicasaWebAlbum *self, GTimeVal *timestamp);
+void gdata_picasaweb_album_set_timestamp (GDataPicasaWebAlbum *self, const GTimeVal *timestamp);
 guint gdata_picasaweb_album_get_num_photos (GDataPicasaWebAlbum *self);
 guint gdata_picasaweb_album_get_num_photos_remaining (GDataPicasaWebAlbum *self);
 glong gdata_picasaweb_album_get_bytes_used (GDataPicasaWebAlbum *self);
diff --git a/gdata/services/picasaweb/gdata-picasaweb-file.c b/gdata/services/picasaweb/gdata-picasaweb-file.c
index a3a90b6f..81323ab5 100644
--- a/gdata/services/picasaweb/gdata-picasaweb-file.c
+++ b/gdata/services/picasaweb/gdata-picasaweb-file.c
@@ -1274,7 +1274,7 @@ gdata_picasaweb_file_get_timestamp (GDataPicasaWebFile *self, GTimeVal *timestam
  * Since: 0.4.0
  **/
 void
-gdata_picasaweb_file_set_timestamp (GDataPicasaWebFile *self, GTimeVal *timestamp)
+gdata_picasaweb_file_set_timestamp (GDataPicasaWebFile *self, const GTimeVal *timestamp)
 {
 	/* RHSTODO: I think the timestamp value is just being
 	   over-ridden by the file's actual EXIF time value; unless
diff --git a/gdata/services/picasaweb/gdata-picasaweb-file.h b/gdata/services/picasaweb/gdata-picasaweb-file.h
index abfaacdf..2288219a 100644
--- a/gdata/services/picasaweb/gdata-picasaweb-file.h
+++ b/gdata/services/picasaweb/gdata-picasaweb-file.h
@@ -80,7 +80,7 @@ void gdata_picasaweb_file_set_client (GDataPicasaWebFile *self, const gchar *cli
 const gchar *gdata_picasaweb_file_get_checksum (GDataPicasaWebFile *self);
 void gdata_picasaweb_file_set_checksum (GDataPicasaWebFile *self, const gchar *checksum);
 void gdata_picasaweb_file_get_timestamp (GDataPicasaWebFile *self, GTimeVal *timestamp);
-void gdata_picasaweb_file_set_timestamp (GDataPicasaWebFile *self, GTimeVal *timestamp);
+void gdata_picasaweb_file_set_timestamp (GDataPicasaWebFile *self, const GTimeVal *timestamp);
 gboolean gdata_picasaweb_file_is_commenting_enabled (GDataPicasaWebFile *self);
 void gdata_picasaweb_file_set_is_commenting_enabled (GDataPicasaWebFile *self, gboolean is_commenting_enabled);
 guint gdata_picasaweb_file_get_comment_count (GDataPicasaWebFile *self);
diff --git a/gdata/services/youtube/gdata-youtube-video.c b/gdata/services/youtube/gdata-youtube-video.c
index 23f5198d..097c905d 100644
--- a/gdata/services/youtube/gdata-youtube-video.c
+++ b/gdata/services/youtube/gdata-youtube-video.c
@@ -1371,7 +1371,7 @@ gdata_youtube_video_get_recorded (GDataYouTubeVideo *self, GTimeVal *recorded)
  * Since: 0.3.0
  **/
 void
-gdata_youtube_video_set_recorded (GDataYouTubeVideo *self, GTimeVal *recorded)
+gdata_youtube_video_set_recorded (GDataYouTubeVideo *self, const GTimeVal *recorded)
 {
 	g_return_if_fail (GDATA_IS_YOUTUBE_VIDEO (self));
 	if (recorded == NULL) {
diff --git a/gdata/services/youtube/gdata-youtube-video.h b/gdata/services/youtube/gdata-youtube-video.h
index 6f723a03..a89c74c0 100644
--- a/gdata/services/youtube/gdata-youtube-video.h
+++ b/gdata/services/youtube/gdata-youtube-video.h
@@ -148,7 +148,7 @@ gboolean gdata_youtube_video_is_draft (GDataYouTubeVideo *self);
 void gdata_youtube_video_set_is_draft (GDataYouTubeVideo *self, gboolean is_draft);
 GDataYouTubeState *gdata_youtube_video_get_state (GDataYouTubeVideo *self);
 void gdata_youtube_video_get_recorded (GDataYouTubeVideo *self, GTimeVal *recorded);
-void gdata_youtube_video_set_recorded (GDataYouTubeVideo *self, GTimeVal *recorded);
+void gdata_youtube_video_set_recorded (GDataYouTubeVideo *self, const GTimeVal *recorded);
 GDataYouTubeAspectRatio gdata_youtube_video_get_aspect_ratio (GDataYouTubeVideo *self);
 void gdata_youtube_video_set_aspect_ratio (GDataYouTubeVideo *self, GDataYouTubeAspectRatio aspect_ratio);