Added "memstats" option to maintain real-time operating stats

in a memory-mapped file.

Version 2.1.16

git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@7653 e7ae566f-a301-0410-adde-c780ea21d3b5

1 files changed, 22 insertions, 0 deletions

diff --git a/init.c b/init.c
index 82c1000..a225c26 100644
--- a/init.c
+++ b/init.c
@@ -36,6 +36,7 @@
 #include "ps.h"
 #include "lladdr.h"
 #include "ping.h"
+#include "mstats.h"
 
 #include "memdbg.h"
 
@@ -815,6 +816,22 @@ init_static (void)
   }
 #endif
 
+#ifdef MSTATS_TEST
+  {
+    int i;
+    mstats_open("/dev/shm/mstats.dat");
+    for (i = 0; i < 30; ++i)
+      {
+	mmap_stats->n_clients += 1;
+	mmap_stats->link_write_bytes += 8;
+	mmap_stats->link_read_bytes += 16;
+	sleep(1);
+      }
+    mstats_close();
+    return false;
+  }
+#endif
+
   return true;
 }
 
@@ -1014,6 +1031,11 @@ do_uid_gid_chroot (struct context *c, bool no_delay)
 	  msg (M_INFO, "NOTE: UID/GID downgrade %s", why_not);
 	}
 
+#ifdef ENABLE_MEMSTATS
+      if (c->options.memstats_fn)
+	mstats_open(c->options.memstats_fn);
+#endif
+
 #ifdef HAVE_SETCON
       /* Apply a SELinux context in order to restrict what OpenVPN can do
        * to _only_ what it is supposed to do after initialization is complete