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52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
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\section fishd fishd - Universal variable daemon
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\subsection fishd-synopsis Synopsis
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<tt>fishd [SECTION]</tt>
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\subsection fishd-description Description
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The \c fishd daemon is used to load, save and distribute universal
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variable information. fish automtically connects to fishd via a socket
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on startup. If no instance of fishd is running, fish spawns a new
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fishd instance. fishd will create a socket in /tmp, and wait for
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incoming connections from universal variable clents, such as fish,
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When no clients are connected, fishd will automatically shut down.
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\subsection fishd-commands Commands
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Fishd works by sending and recieving sommands. Each command is ended
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with a newline. These are the commands supported by fishd:
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<pre>set KEY:VALUE
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set_export KEY:VALUE
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</pre>
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These commands update the value of a variable. The only difference
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between the two is that <tt>set_export</tt>-variables should be
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exported to children of the process using them. The variable value may
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be escaped using C-style backslash escapes. In fact, this is required
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for newline characters, which would otherwise be interpreted as end of
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command.
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<pre>erase KEY
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</pre>
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Erase the variable with the specified name.
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<pre>barrier
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barrier_reply
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</pre>
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A \c barrier command will result in a barrier_reply beeing added to
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the end of the senders queue of unsent messages. These commands are
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used to synchronize clients, since once the reply for a barrier
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message returns, the sender can know that any updates available at the
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time the original barrier request was sent have been recieved.
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\subsection fishd-files Files
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~/.fishd.HOSTNAME permenent storage location for universal variale
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data. The data is stored as a set of \c set and \c set_export commands
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such as would be parsed by fishd.
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