mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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Steffen Vogel
e5bb03251c
git-svn-id: https://zerberus.eonerc.rwth-aachen.de:8443/svn/s2ss/trunk@85 8ec27952-4edc-4aab-86aa-e87bb2611832
57 lines
1 KiB
Markdown
57 lines
1 KiB
Markdown
# Concept
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The server is designed around the concept of _nodes_ and _paths_.
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A path is a **unidirectional** connection between two nodes.
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Messages from the incoming node get forwarded to the outgoing node.
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For bidirectional communication a corresponding path in the reverse direction must be added.
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The server is designed to allow multiple outgoing nodes as an extension.
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@todo This has **not** been implemented at the moment!
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\diafile path_simple.dia
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## Path
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@todo Add documentation
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@see path
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## Node
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@todo Add documentation
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@see node
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## Message
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@todo Add documentation
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A message contains a variable number of values.
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Usually a a simulator sends one message per timestep.
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The format of a message is defined by the following structure:
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~~~{.c}
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struct msg
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{
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/** Sender device ID */
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uint16_t device;
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/** Message ID */
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uint32_t sequence;
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/** Message length (data only) */
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uint16_t length;
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/** Message data */
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double data[MAX_VALUES];
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} __attribute__((packed));
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~~~
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@see msg
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## Interface
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@todo Add documentation
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@see interface
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