# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1295376457 -3600
# Node ID bdfd0ba6ce2d37082300970b48de3239b2ae35b8
# Parent  c6bc5712a6a9e6fdf275eac3768fd2a336c913b2
get-rusage-as: Improvement for Cygwin.

* lib/get-rusage-as.c (get_rusage_as_via_iterator): On Windows, ignore
areas that are merely reserved.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2011-01-18  Bruno Haible  <bruno@clisp.org>
+
+	get-rusage-as: Improvement for Cygwin.
+	* lib/get-rusage-as.c (get_rusage_as_via_iterator): On Windows, ignore
+	areas that are merely reserved.
+
 2011-01-18  Paul Eggert  <eggert@cs.ucla.edu>
 
 	strftime: remove dependencies on multibyte modules
diff --git a/lib/get-rusage-as.c b/lib/get-rusage-as.c
--- a/lib/get-rusage-as.c
+++ b/lib/get-rusage-as.c
@@ -653,7 +653,11 @@
   while (VirtualQuery ((void*)address, &info, sizeof(info)) == sizeof(info))
     {
       if (info.State != MEM_FREE)
-        total += info.RegionSize;
+        /* Ignore areas where info.Protect has the undocumented value 0.
+           This is needed, so that on Cygwin, areas used by malloc() are
+           distinguished from areas reserved for future malloc().  */
+        if (info.Protect != 0)
+          total += info.RegionSize;
       address = (unsigned long)info.BaseAddress + info.RegionSize;
     }
   return total;