Prepare the procfs translator to be merged into the Hurd sources

Move the procfs translator to its own subdirectory 'procfs'.

This is the last commit to this repository.  Development of the procfs
translator will continue in the main Hurd repository.

* procfs/Makefile: Replace the standalone Makefile with the one from
the Debian packaging repository.

1 files changed, 24 insertions, 0 deletions

diff --git a/procfs/TODO b/procfs/TODO
new file mode 100644
index 00000000..952d67bc
--- /dev/null
+++ b/procfs/TODO
@@ -0,0 +1,24 @@
+Known bugs to be fixed
+----------------------
+
+* The non-owned processes sometimes show up with INT_MAX as their owner,
+  instead of opt_anon_uid. This is likely to be a libps problem.
+
+Improvements and new features
+-----------------------------
+
+* There is a lot of dynamic memory allocation going on and it comes with a
+  cost in performance. We could try to limit such allocation, as long as it
+  keeps the inner interface simple and preserves the read/readdir semantics
+  (performance is probably not critical for a proc filesystem.)
+  One way would be to add an (optional) "needed_length" field to
+  procfs_node_ops, and arrange to pass a sufficent buffer in (*contents,
+  *contents_len) when get_contents is called. Then the user-provided buffer
+  might be used directly under some circumstances.
+
+* Add thread directories as [pid]/task/[n]. This shouldn't be too hard if we
+  use "process" nodes for threads, and provide an "exists" hook for the "task"
+  entry itself so that it's disabled in thread nodes. It might prove necessary
+  to have "optional" libps flags for some content generators, though, since
+  some of them might be missing for threads.
+