Fuse the proclist into the root node

* dircat.c, dircat.h: New files, merge directories.
* Makefile: Add the dircat module.
* main.c: Use dircat to merge the proclist into the root
  directory, instead of having it as a stand-alone one.
* procfs.h, procfs.c: Add a "refresh hack" to have the
  contents of the root directory recreated on each request.
* proclist.c (proclist_make_node): Enable the hack in question.

1 files changed, 9 insertions, 0 deletions

diff --git a/dircat.h b/dircat.h
new file mode 100644
index 0000000..cb22852
--- /dev/null
+++ b/dircat.h
@@ -0,0 +1,9 @@
+/* Append the contents of multiple directories.  DIRS is a
+   NULL-terminated array of directory nodes.  One reference is consumed
+   for each of them, even on ENOMEM, in which case NULL is returned.
+   DIRS has to be static data for now, or at list remain available and
+   unchanged for the duration of the created node's life.  Strange
+   things will happen if they have entries with the same name or if one
+   of them is not a directory.  */
+struct node *
+dircat_make_node (struct node **dirs);