I seem to have a race problem I can't work my head around.
Suppose I have multiple files promises to keep cf client files up to date:
"/var/cfengine/bin/"
copy_from ....
classes => ucdefine(
"cf_upgraded",
"cffiles_failed"
);
"/var/cfengine/lib/"
copy_from ....
classes => ucdefine(
"cf_upgraded",
"cffiles_failed"
);
"/var/cfengine/include/"
copy_from ....
classes => ucdefine(
"cf_upgraded",
"cffiles_failed"
);
These files include Cfengine, Berkeley and PCRE binaries. I have to kill
all Cf processes if these files are updated in order to have the new
binaries running.
cf_upgraded::
"cf-monitord" signals => { "kill" },
comment => "Kill if files are upgraded";
"cf-execd" signals => { "kill" },
comment => "Kill if files are upgraded";
"cf-serverd" signals => { "kill" },
comment => "Kill if files are upgraded";
I think that it is possible that the processes could be killed before all
three files promises are completed. Thus I need some logic to say confirm
all these file promises first before evaluating the processes promise. At
the same time I want to keep this simple as it is contained in update.cf.
Suggestions?
Sincerely,
--
Neil Watson
416-673-3465
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