On Tue, Jun 2, 2009 at 12:11 AM, Andrew Clarke <[email protected]> wrote:
> I'm interested to know what could be done with the returned process id on
> Unix. I can't see any sort of wait() function available in Unicon to use.
(I assume this is the Unix semantics issue that Clint mentioned,
please let me know if I've overlooked the real point.)
I did add a function "wait" that takes a pid. Does it not exist any
more? This is the documentation for it:
wait(pid, options) : status -- Wait for process to terminate or stop
The options argument is a string constructed from the following characters:
"n" NOHANG - don't wait for a child to terminate (wait will fail
if there are no more)
"u" UNTRACED - report status for untraced children also
The return value is a string that represents the pid and the exit
status as defined in this table:
Unix equivalent example of returned string
WIFSTOPPED(status) "1234 stopped:SIGTSTP"
WIFSIGNALLED(status) "1234 terminated:SIGHUP"
WIFEXITED(status) "1234 exit:1"
WIFCORE(status) "1234 terminated:SIGSEGV:core"
Currently the rusage facility is unimplemented.
Defaults: pid Wait for all children
-s
--
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worked for me."
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