thesis/thesis.tex: Rewrite of Message levels subsubsection.

1 files changed, 31 insertions, 22 deletions

diff --git a/thesis/thesis.tex b/thesis/thesis.tex
index 2c113fc..a5e1f11 100644
--- a/thesis/thesis.tex
+++ b/thesis/thesis.tex
@@ -729,30 +729,39 @@
   \cleardoublepage
       \subsubsection{Message levels}
         \label{subsubsec:message_levels}
-        The \gls{osc} interface conceived in the course of this work implements
-        several message levels to be able to distinguish between types of
-        clients and servers.\\
+        To be able to distinguish between types of
+        clients and servers, several message levels were implemented for the
+        \gls{osc} interface conceived in the course of this work.\\
         The \textit{enumeration class} MessageLevel in
-        \textit{src/ssr\_global.h} defines the four types \textit{SERVER},
-        \textit{THIN\_CLIENT}, \textit{CLIENT}, \textit{GUI\_CLIENT}.\\
-        Client \gls{ssr} instances subscribe to (\gls{ssr}) server instances
-        with the \textit{MessageLevel} \textit{CLIENT} by default.\\
-        Several updating messages, such as information on \gls{cpu} load or master
-        signal level are not of interest to a rendering client and should
-        therefore not be sent to them, which is why they are only sent to
-        clients with a \textit{MessageLevel} of \textit{GUI\_CLIENT} connected
-        to a \gls{ssr} instance.\\
+        \textit{src/ssr\_global.h} defines the four types \textit{CLIENT},
+        \textit{GUI\_CLIENT}, \textit{SERVER}, \textit{GUI\_SERVER},  (in
+        ascending order).\\
+        \gls{ssr} client instances subscribe to (\gls{ssr}) server instances
+        with the \textit{MessageLevel} \textit{CLIENT} by default. Server
+        instances get the \textit{MessageLevel} \textit{SERVER} assigned
+        to by each client on subscribing to it.\\
+        In the \gls{osc} interface it is implemented as follows: A (recycable
+        and reconfigurable) list of clients is held by a server instance, which
+        enables for the \textit{MessageLevel} to change for each client. Every
+        client instance holds a (reconfigurable) server representation, that
+        enables for the \textit{MessageLevel} to change for each client towards
+        its server.\\
+        Several messages, such as information related to \gls{cpu} load or
+        master signal level are not useful for a rendering client (additionally
+        they are issued in very short intervals, which can lead to performance
+        issues), which is why they are only sent to clients with a
+        \textit{MessageLevel} of \textit{GUI\_CLIENT} or servers with a
+        \textit{MessageLevel} of \textit{GUI\_SERVER}.\\
         Lightweight \gls{osc} capable applications used to control a \gls{ssr}
-        server instance or mimicing the behavior of a server instance to
-        control a set of clients also don't need all the processing and
-        transport related information of clients sent to them, which is why
-        they ought to subscribe to them with the \textit{MessageLevel}
-        \textit{THIN\_CLIENT}.\\
-        Server instances subscribed to, get the \textit{MessageLevel}
-        \textit{SERVER} assigned to by each client by default. To change the
-        type of \gls{osc} messages sent to them, the server's
-        \textit{MessageLevel} can be set to a higher value (i.e.
-        \textit{THIN\_CLIENT}).
+        server instance are clients to said server instance. An elevated
+        \textit{MessageLevel} of \textit{SERVER} (instead of \textit{CLIENT})
+        enables them to send messages to the server and have them evaluated.
+        Analogous to a server instance holding a \textit{MessageLevel} of
+        \textit{GUI\_SERVER} towards its clients, a client instance can hold
+        the same \textit{MessageLevel} towards a server instance to receive the
+        above mentioned performance heavy \gls{osc} messages.\\
+        How the setting up of message levels is achieved is further elaborated
+        upon in the following section.
 
       \subsubsection{Message interface}
         \label{subsubsec:message_interface}