util: add show_messages function to print dbus-monitor output

1 files changed, 14 insertions, 0 deletions

diff --git a/src/util.py b/src/util.py
index 36b6616..ae88084 100644
--- a/src/util.py
+++ b/src/util.py
@@ -44,6 +44,20 @@ def spawnbus(quiet = False):
     _process_input (process.stderr, "STDERR", quiet)
     return process
 
+# TODO: it might be more useful to read the input stream synchronously
+# for this
+def show_messages(quiet):
+    command = ['dbus-monitor', '--session']
+
+    process = subprocess.Popen(command,
+                               stdout = subprocess.PIPE,
+                               stderr = subprocess.PIPE,
+                               )
+    atexit.register(lambda p: os.kill(p.pid, signal.SIGKILL), process)
+
+    _process_input(process.stdout, "MONITOR", quiet)
+    _process_input(process.stderr, "MONITOR", quiet)
+
 def override_env (variable, var, quiet = False):
     os.environ[variable] = var
     if not quiet: