test: raise fd limit to maximum before running fdpass tests

Many of these tests require more than the default fd limit on some systems,
so raise the limit, if we can, to give them a better chance of being able
to run.

Closes #176
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
(cherry picked from commit f851484bf5aa0ef40eca1c34a215be5346095b2f)

diff --git a/test/fdpass.c b/test/fdpass.c
index abd415044250bea680174be5977cb1ce6f971413..bea208e0e190d9ff4ba7fd60e7f9862eec648613 100644 (file)
--- a/test/fdpass.c
+++ b/test/fdpass.c
@@ -900,6 +900,16 @@ main (int argc,
       if (getrlimit (RLIMIT_NOFILE, &lim) < 0)
         g_error ("Failed to get RLIMIT_NOFILE limit: %s", g_strerror (errno));
 
+      if ((lim.rlim_cur != RLIM_INFINITY) && (lim.rlim_cur < lim.rlim_max))
+        {
+          /* Many test require large number of file descriptors,
+           * so max out what they can use */
+          lim.rlim_cur = lim.rlim_max;
+          if (setrlimit (RLIMIT_NOFILE, &lim) < 0)
+            g_error ("Failed to set RLIMIT_NOFILE limit to %ld: %s",
+                     (long) lim.rlim_cur, g_strerror (errno));
+        }
+
       if (lim.rlim_cur != RLIM_INFINITY &&
           /* only run if we have a fairly generous margin of error
            * for stdout, stderr, duplicates, the D-Bus connection, etc. */