DLS: add support to request DLS file re-read

A re-read of any of the used DLS files can now be requested by storing a
file with the same filename which is suffixed by `.REQUEST_DLS_REREAD`.

When the next PAD is going to be encoded and such a file is present, the
encoder changes the current DLS file to the related DLS file, if needed
(only applies if multiple DLS files are used). The DLS file is re-read
and the request file is deleted. The DLS is also immediately inserted
into the PAD transmission.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/dls.h b/src/dls.h
index 84ff4c5..3b7387d 100644
--- a/src/dls.h
+++ b/src/dls.h
@@ -151,6 +151,7 @@ private:
 public:
     static const int APPTYPE_START;
     static const int APPTYPE_CONT;
+    static const std::string REQUEST_REREAD_SUFFIX;
 
     DLSEncoder(PADPacketizer* pad_packetizer) : pad_packetizer(pad_packetizer), dls_toggle(false) {}
     void encodeLabel(const std::string& dls_file, const DL_PARAMS& dl_params);