On 30.05.2017 21:04, CVBruce wrote:
> I wish I could remember who suggested that KeepAlive be set to false. His
> premiss was that rxapi
> rarely fails, and I have to agree with him.
>
> If I open up the code again, I want to know ahead of time, how it should be
> done. Last time I
> used a lot of #ifdef to work around the code that was proving bothersome. I
> was told that wasn’t
> the way to do it. So what is the directional way to modify the code. Should
> I be creating a
> whole new rxapi for those systems that use launchd to start processes?
If the intended changes have not materialized for ooRexx 5.0, then I would
assume that any sensible
implementation that adjusts rxapi to be a "good citizen" in launchd
environments would be very fine!
As you seem to have the necessary knowledge for both, rxapi and launchd, if no
one stands up to give
an answer then please apply those changes that you see as needed for rxapi to
behave according to
launchd rules and supply it as a patch for ooRexx 5.0beta, so it gets recorded,
saved and can be
applied to the ooRexx 5.0 source!
---rony
>
> On May 30, 2017, at 1:41 AM, Rony G. Flatscher <[email protected]
> <mailto:[email protected]>> wrote:
>>
>> Indeed, the plist file originates from Bruce (thanks a lot again for it)!
>>
>> Bruce, if you happen to find your changes to rxapi to behave according to
>> the MacOSX
>> specifications, probably everyone in the community would appreciate it if
>> you could make them
>> available! It is quite disturbing that on MacOSX the launcher tries to
>> restart the running rxapi
>> daemon every ten seconds in vain (for stability reasons "keepalive" needs to
>> be set IMHO).
>>
>> ---rony
>>
>>
>>
>> On 23.05.2017 16:14, CVBruce wrote:
>>> I think I originally wrote this plist file. In the old make process the
>>> ‘make install’ would
>>> tailor the file for the current install location (i think).
>>>
>>> There was some discussion around this file and the rxapi process on MacOS.
>>> The problem stems
>>> from the MacOS architecture for daemons doesn’t like daemons that fork and
>>> exec when starting.
>>> The launch daemon looses connection to them. With the KeepAlive attribute
>>> the launch daemon
>>> thinks that the process rxapi has stopped/failed, so every few seconds it
>>> tries to restart the
>>> rxapi process. You can see this in the system log. I had re-written the
>>> rxapi code with MacOS
>>> conditionals, and these changes were rejected, because the whole process
>>> was scheduled to be
>>> re-written.
>>>
>>> As a work around, one user suggested that since the rxapi process rarely
>>> ever fails, that the
>>> KeepAlive attribute is unnecessary, and can be set to false.
>>>
>>> Bruce
>>>> On May 23, 2017, at 5:37 AM, Rony G. Flatscher <[email protected]
>>>> <mailto:[email protected]>> wrote:
>>>>
>>>> Enclosed you will find a MacOSX plist-file named
>>>> "org.rexxla.oorexx.rxapid.plist" which I use
>>>> for the BSF4ooRexx MacOSX installation.
>>>>
>>>> It turns out (by mistake) that ooRexx will run quite slowly, if rxapi is
>>>> not running as a
>>>> daemon, hence mentioning this here and enclosing a working plist file
>>>> which has the following
>>>> content:
>>>>
>>>> F:\debug_oorexx\from_macosx>type org.rexxla.oorexx.rxapid.plist
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
>>>> "http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
>>>> <plist version="1.0">
>>>> <dict>
>>>> <key>Disabled</key>
>>>> <false/>
>>>> <key>KeepAlive</key>
>>>> <true/>
>>>> <key>Label</key>
>>>> <string>org.rexxla.oorexx.rxapid</string>
>>>> <key>ProgramArguments</key>
>>>> <array>
>>>> <string>/usr/local/bin/rxapi</string>
>>>> </array>
>>>> <key>RunAtLoad</key>
>>>> <true/>
>>>> </dict>
>>>> </plist>
>>>>
>>>> As you can see, the plist' path to rxapi has been adjusted to
>>>> "/usr/local/bin/rxapi".
>>>>
>>>> To use it one needs to copy "org.rexxla.oorexx.rxapid.plist" to
>>>> "/Library/LaunchDaemons". From
>>>> my older notes I noticed that that plist-file should be owned by root and
>>>> be in the
>>>> administrator group ("wheel").
>>>>
>>>> To start the rxapi daemon on MacOSX you then would use launchctl like this:
>>>>
>>>> launchctl load -w /Library/LaunchDaemons/org.rexxla.oorexx.rxapid.plist
>>>>
>>>> To unload the rxapi dameon on MacOSX you then would use launchtl like this:
>>>>
>>>> launchctl unload -w
>>>> /Library/LaunchDaemons/org.rexxla.oorexx.rxapid.plist
>>>>
>>>> Maybe this proofs to be a little bit helpful while working on the CMake
>>>> definitions for MacOSX.
>>>>
>>>> ---rony
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