GioDBusMessagebytes_needed

gssize
g_dbus_message_bytes_needed (
  guchar* blob,
  gsize blob_len,
  GError** error
)

Utility function to calculate how many bytes are needed to completely deserialize the D-Bus message stored at blob.

Available since:

2.26

`blob`	An array of `guint8`
	A blob representing a binary D-Bus message.
	The length of the array is specified in the `blob_len` argument.
	The data is owned by the caller of the function.
`blob_len`	`gsize`
	The length of `blob` (must be at least 16).
`error`	`GError **`
	The return location for a `GError*`, or `NULL`.

Returns:	`gssize`
	Number of bytes needed or -1 if `error` is set (e.g. if `blob` contains invalid data or not enough data is available to determine the size).