[gobject-introspection/gnome-3-30] Update glib annotations (glib-2-58)

[Christoph Reiter <creiter src gnome org>]

commit b03e687287433c0fa57910d8f8e2ffa2d2e3fdc5
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Wed Dec 26 21:48:13 2018 +0100

    Update glib annotations (glib-2-58)

 gir/gio-2.0.c     | 24 ++++++++++++++++--------
 gir/glib-2.0.c    | 31 +++++++++++++++++++++++--------
 gir/gobject-2.0.c |  2 +-
 3 files changed, 40 insertions(+), 17 deletions(-)
---
diff --git a/gir/gio-2.0.c b/gir/gio-2.0.c
index ce76cdb8..766c0cd1 100644
--- a/gir/gio-2.0.c
+++ b/gir/gio-2.0.c
@@ -14916,7 +14916,7 @@
  * dispatched anywhere else - not even the standard dispatch machinery
  * (that API such as g_dbus_connection_signal_subscribe() and
  * g_dbus_connection_send_message_with_reply() relies on) will see the
- * message. Similary, if a filter consumes an outgoing message, the
+ * message. Similarly, if a filter consumes an outgoing message, the
  * message will not be sent to the other peer.
  *
  * If @user_data_free_func is non-%NULL, it will be called (in the
@@ -16798,7 +16798,7 @@
 
 /**
  * g_dbus_message_bytes_needed:
- * @blob: (array length=blob_len) (element-type guint8): A blob represent a binary D-Bus message.
+ * @blob: (array length=blob_len) (element-type guint8): A blob representing a binary D-Bus message.
  * @blob_len: The length of @blob (must be at least 16).
  * @error: Return location for error or %NULL.
  *
@@ -16904,7 +16904,10 @@
  *
  * Gets a header field on @message.
  *
- * Returns: A #GVariant with the value if the header was found, %NULL
+ * The caller is responsible for checking the type of the returned #GVariant
+ * matches what is expected.
+ *
+ * Returns: (transfer none) (nullable): A #GVariant with the value if the header was found, %NULL
  * otherwise. Do not free, it is owned by @message.
  * Since: 2.26
  */
@@ -17080,6 +17083,9 @@
  * order that the message was in can be retrieved using
  * g_dbus_message_get_byte_order().
  *
+ * If the @blob cannot be parsed, contains invalid fields, or contains invalid
+ * headers, %G_IO_ERROR_INVALID_ARGUMENT will be returned.
+ *
  * Returns: A new #GDBusMessage or %NULL if @error is set. Free with
  * g_object_unref().
  * Since: 2.26
@@ -24907,8 +24913,8 @@
  *   native, the returned string is the result of g_file_get_uri()
  *   (such as `sftp://path/to/my%20icon.png`).
  *
- * - If @icon is a #GThemedIcon with exactly one name, the encoding is
- *    simply the name (such as `network-server`).
+ * - If @icon is a #GThemedIcon with exactly one name and no fallbacks,
+ *   the encoding is simply the name (such as `network-server`).
  *
  * Returns: (nullable): An allocated NUL-terminated UTF8 string or
  * %NULL if @icon can't be serialized. Use g_free() to free.
@@ -38394,8 +38400,10 @@
  * the beginning of the communication, you do not need to call this
  * function explicitly unless you want clearer error reporting.
  * However, you may call g_tls_connection_handshake() later on to
- * rehandshake, if TLS 1.2 or older is in use. With TLS 1.3, this will
- * instead perform a rekey.
+ * rehandshake, if TLS 1.2 or older is in use. With TLS 1.3, the
+ * behavior is undefined but guaranteed to be reasonable and
+ * nondestructive, so most older code should be expected to continue to
+ * work without changes.
  *
  * #GTlsConnection::accept_certificate may be emitted during the
  * handshake.
@@ -40809,7 +40817,7 @@
  * also listen for the "removed" signal on the returned object
  * and give up its reference when handling that signal
  *
- * Similary, if implementing g_volume_monitor_adopt_orphan_mount(),
+ * Similarly, if implementing g_volume_monitor_adopt_orphan_mount(),
  * the implementor must take a reference to @mount and return it in
  * its g_volume_get_mount() implemented. Also, the implementor must
  * listen for the "unmounted" signal on @mount and give up its
diff --git a/gir/glib-2.0.c b/gir/glib-2.0.c
index 66ab9a05..46149833 100644
--- a/gir/glib-2.0.c
+++ b/gir/glib-2.0.c
@@ -2108,7 +2108,9 @@
  *
  * GLib is attempting to unify around the use of 64bit integers to
  * represent microsecond-precision time. As such, this type will be
- * removed from a future version of GLib.
+ * removed from a future version of GLib. A consequence of using `glong` for
+ * `tv_sec` is that on 32-bit systems `GTimeVal` is subject to the year 2038
+ * problem.
  */
 
 
@@ -6708,7 +6710,10 @@
  *
  * The above definition is recursive to arbitrary depth. "aaaaai" and
  * "(ui(nq((y)))s)" are both valid type strings, as is
- * "a(aa(ui)(qna{ya(yd)}))".
+ * "a(aa(ui)(qna{ya(yd)}))". In order to not hit memory limits, #GVariant
+ * imposes a limit on recursion depth of 65 nested containers. This is the
+ * limit in the D-Bus specification (64) plus one to allow a #GDBusMessage to
+ * be nested in a top-level tuple.
  *
  * The meaning of each of the characters is as follows:
  * - `b`: the type string of %G_VARIANT_TYPE_BOOLEAN; a boolean value.
@@ -11729,8 +11734,8 @@
  * @stamp: (out) (optional): return location for the last registration time, or %NULL
  * @error: return location for a #GError, or %NULL
  *
- * Gets the registration informations of @app_name for the bookmark for
- * @uri.  See g_bookmark_file_set_app_info() for more informations about
+ * Gets the registration information of @app_name for the bookmark for
+ * @uri.  See g_bookmark_file_set_app_info() for more information about
  * the returned data.
  *
  * The string returned in @app_exec must be freed.
@@ -33031,10 +33036,12 @@
  * variation of ISO 8601 format is required.
  *
  * If @time_ represents a date which is too large to fit into a `struct tm`,
- * %NULL will be returned. This is platform dependent, but it is safe to assume
- * years up to 3000 are supported. The return value of g_time_val_to_iso8601()
- * has been nullable since GLib 2.54; before then, GLib would crash under the
- * same conditions.
+ * %NULL will be returned. This is platform dependent. Note also that since
+ * `GTimeVal` stores the number of seconds as a `glong`, on 32-bit systems it
+ * is subject to the year 2038 problem.
+ *
+ * The return value of g_time_val_to_iso8601() has been nullable since GLib
+ * 2.54; before then, GLib would crash under the same conditions.
  *
  * Returns: (nullable): a newly allocated string containing an ISO 8601 date,
  *    or %NULL if @time_ was too large
@@ -36438,6 +36445,11 @@
  * The returned value is never floating.  You should free it with
  * g_variant_unref() when you're done with it.
  *
+ * There may be implementation specific restrictions on deeply nested values,
+ * which would result in the unit tuple being returned as the child value,
+ * instead of further nested children. #GVariant is guaranteed to handle
+ * nesting up to at least 64 levels.
+ *
  * This function is O(1).
  *
  * Returns: (transfer full): the child at the specified index
@@ -36923,6 +36935,9 @@
  * being trusted.  If the value was already marked as being trusted then
  * this function will immediately return %TRUE.
  *
+ * There may be implementation specific restrictions on deeply nested values.
+ * GVariant is guaranteed to handle nesting up to at least 64 levels.
+ *
  * Returns: %TRUE if @value is in normal form
  * Since: 2.24
  */
diff --git a/gir/gobject-2.0.c b/gir/gobject-2.0.c
index 1a4f3bcb..89091e1b 100644
--- a/gir/gobject-2.0.c
+++ b/gir/gobject-2.0.c
@@ -6509,7 +6509,7 @@
  *
  * Get the contents of a variant #GValue.
  *
- * Returns: (nullable): variant contents of @value (may be %NULL)
+ * Returns: (transfer none) (nullable): variant contents of @value (may be %NULL)
  * Since: 2.26
  */