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halrmt: Fix the risk of exceptions in HAL query callbacks and add a test #4557

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grandixximo merged 1 commit into from
Sep 17, 2026
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halrmt: Fix the risk of exceptions in HAL query callbacks and add a test #4557

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23 changes: 22 additions & 1 deletion docs/src/man/man1/halrmt.1.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ halrmt - remote-control interface for LinuxCNC/HAL

-n,--name _server_name_::
Sets the server name to specified name for in reply to `HELLO` command.
Default: EMCNETSVR.
Default: HALNETSVR.

-p,--port _port_::
Listen on TCP port _port_ for connection.
Expand Down Expand Up @@ -110,6 +110,10 @@ set delsig <signalname>|all::
Deletes the signal specified by _signalname_.
Specifying 'all' will remove all signals in the system.

set disable::
Disables the connection from accepting control functions that require the connection to be 'enabled'.
You may use `SET ENABLE` to enable the connection again.

get echo::
set echo {on|off}::
With get will return the current echo state.
Expand Down Expand Up @@ -145,6 +149,14 @@ get functs [pattern]::
Returns information about functions matching _pattern_.
If no _pattern_ is specified then all functions are returned.

get getp <pin|param>::
Get the value of a pin or parameter.
This will print in the form "GETP __type__ __name__ __value__".

get gets <signal>::
Get the value of a signal.
This will print in the form "GETS __type__ __name__ __value__".

get ini <var> <section>::
Return the variable \[__section__]_var_ from the current INI-file.

Expand Down Expand Up @@ -287,6 +299,15 @@ set verbose on | off::
In addition, text error messages will be issued when in verbose mode.
The _verbose_ state is local to each connection.

set wait <thread> [<cycles>|2 [timeout]]::
Wait for the number of _cycles_ to have passed in the named _thread_.
The command will use the pin '__thread__.threadbeat' for the cycle count.
The default number of _cycles_ to wait is two (2) when not specified.
The maximum number of _cycles_ to wait is set at 10000.
The _cycles_ value needs to be two to guarantee that the thread cycle has run at least once.
The _timeout_ can only be specified if you also specify the _cycles_.
The default _timeout_ is 11 seconds (10000 cycles of 0.001 seconds plus one second).

== SEE ALSO

*linuxcnc*(1),
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