Update kerneldb.

[virt-mem.git] / ps / virt_ps.ml

diff --git a/ps/virt_ps.ml b/ps/virt_ps.ml
index 94301ce..07e5e76 100644 (file)
--- a/ps/virt_ps.ml
+++ b/ps/virt_ps.ml
@@ -21,16 +21,35 @@ open Printf
 
 open Virt_mem_gettext.Gettext
 open Virt_mem_utils
-open Virt_mem_mmap
-
-let usage = s_"NAME
-  virt-ps - process listing command for virtual machines
-
-SUMMARY
-  virt-ps [-options] [domains]
-
-DESCRIPTION
-  virt-ps prints a process listing for virtual machines running under
-  libvirt."
-
-let debug, images = Virt_mem.start usage
+open Virt_mem_types
+
+open Kernel
+
+let run debug { addrmap = addrmap } =
+  (* Grab all the task_struct structures. *)
+  let tasks = AddrMap.fold (
+    fun _ v tasks ->
+      match v with
+      | _, Some (_, _, Task_struct task) -> task :: tasks
+      | _ -> tasks
+  ) addrmap [] in
+
+  (* Sort tasks by PID. *)
+  let cmp { task_struct_pid = p1 } { task_struct_pid = p2 } = compare p1 p2 in
+  let tasks = List.sort cmp tasks in
+
+  printf "  PID STAT COMMAND\n";
+
+  List.iter (
+    fun { task_struct_pid = pid; task_struct_comm = comm } ->
+      let comm = truncate_c_string comm in
+      printf "%5Ld      %s\n" pid comm
+  ) tasks
+
+let summary = s_"list processes in virtual machine"
+let description = s_"\
+virt-ps prints a process listing for virtual machines running under
+libvirt."
+
+let () =
+  Virt_mem.register "ps" summary description ~needs_tasks:true ~run