Throw more informative error classes from perf.

[pdm.git] / pdm / perf.py

diff --git a/pdm/perf.py b/pdm/perf.py
index fd4daa6..7c0d561 100644 (file)
--- a/pdm/perf.py
+++ b/pdm/perf.py
@@ -51,6 +51,13 @@ __all__ = ["attrinfo", "simpleattr", "valueattr", "eventobj",
            "staticdir", "event", "procevent", "startevent",
            "finishevent"]
 
+class error(Exception):
+    pass
+class nosuchname(LookupError, error):
+    pass
+class nosuchproto(error):
+    pass
+
 class attrinfo(object):
     """The return value of the `attrinfo' method on `attr' objects as
     described in L{pdm.srv.perf}.
@@ -129,7 +136,7 @@ class eventobj(perfobj):
 
     def notify(self, event):
         """Notify all subscribers with the given event object."""
-        for cb in self.subscribers:
+        for cb in list(self.subscribers):
             try:
                 cb(event)
             except: pass
@@ -278,4 +285,12 @@ sysinfo["uname"] = simpleattr(func = os.uname)
 sysinfo["hostname"] = simpleattr(func = socket.gethostname)
 sysinfo["platform"] = valueattr(init = sys.platform)
 
-sysctl = simplefunc(exit=lambda status=0: os._exit(status))
+def reload(modname):
+    mod = sys.modules.get(modname)
+    if mod is None:
+        raise ValueError(modname)
+    import importlib
+    importlib.reload(mod)
+
+sysctl = simplefunc(exit=lambda status=0: os._exit(status),
+                    reload=reload)