[R-gregmisc-users] SF.net SVN: r-gregmisc: [1066] trunk/fork/tests/test_many_fork_BSD.R

[<wa...@us...>]

Revision: 1066
          http://svn.sourceforge.net/r-gregmisc/?rev=1066&view=rev
Author:   warnes
Date:     2007-03-06 14:47:29 -0800 (Tue, 06 Mar 2007)

Log Message:
-----------
Create SysV and BSD tests for code to prevent zombie process creation, update code that intentionally creates zombies.  Move sub-process creation and zombie test code to a function for use by all three test files

Added Paths:
-----------
    trunk/fork/tests/test_many_fork_BSD.R

Added: trunk/fork/tests/test_many_fork_BSD.R
===================================================================
--- trunk/fork/tests/test_many_fork_BSD.R	                        (rev 0)
+++ trunk/fork/tests/test_many_fork_BSD.R	2007-03-06 22:47:29 UTC (rev 1066)
@@ -0,0 +1,22 @@
+## This script starts child processes, and sets up a 'dummy' SIGCLD
+## hander to handle child process notifications. Hopefully on both BSD
+## and Sys5 derived systems, this should cause child processes to exit
+## and die cleanly, IE without becoming zombies.
+
+library(fork)
+
+## start signal handler
+handleSIGCLD()
+
+source("checkZombies.R")
+
+nZombies <- checkZombies()
+
+if(nZombies) {
+  stop("Zombie processes created")
+} else {
+  cat("Success!\n")
+}
+
+# remove signal handler
+restoreSIGCLD()


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