Fetch process information and reject the non-existing ones

* process.c, process.h (process_make_node): Make static,
  include a procinfo structure into the node information.
  (process_lookup_pid): New function, replaces process_make_node as the
  outer interface, returns an error for non-existing processes.
* proclist.c (proclist_lookup): Convert to the new interface.

1 files changed, 8 insertions, 2 deletions

diff --git a/process.h b/process.h
index 8ca7c85..abdaaa3 100644
--- a/process.h
+++ b/process.h
@@ -1,2 +1,8 @@
-struct node *
-process_make_node (process_t procserv, pid_t pid);
+#include <hurd.h>
+
+/* Create a node for a directory representing information available at
+   the proc server PROC for the given PID.  On success, returns the
+   newly created node in *NP.  */
+error_t
+process_lookup_pid (process_t proc, pid_t pid, struct node **np);
+