diff options
| -rw-r--r-- | scripts/tracetool/__init__.py | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py index e8e8edcc4c..bd3fd85d78 100644 --- a/scripts/tracetool/__init__.py +++ b/scripts/tracetool/__init__.py @@ -15,6 +15,7 @@ __email__ = "stefanha@linux.vnet.ibm.com" import re import sys +import weakref import tracetool.format import tracetool.backend @@ -108,6 +109,18 @@ class Arguments: """List of argument types.""" return [ type_ for type_, _ in self._args ] + def transform(self, *trans): + """Return a new Arguments instance with transformed types. + + The types in the resulting Arguments instance are transformed according + to tracetool.transform.transform_type. + """ + res = [] + for type_, name in self._args: + res.append((tracetool.transform.transform_type(type_, *trans), + name)) + return Arguments(res) + class Event(object): """Event description. @@ -128,7 +141,7 @@ class Event(object): _VALID_PROPS = set(["disable"]) - def __init__(self, name, props, fmt, args): + def __init__(self, name, props, fmt, args, orig=None): """ Parameters ---------- @@ -140,12 +153,19 @@ class Event(object): Event printing format. args : Arguments Event arguments. + orig : Event or None + Original Event before transformation. """ self.name = name self.properties = props self.fmt = fmt self.args = args + if orig is None: + self.original = weakref.ref(self) + else: + self.original = orig + unknown_props = set(self.properties) - self._VALID_PROPS if len(unknown_props) > 0: raise ValueError("Unknown properties: %s" @@ -190,6 +210,14 @@ class Event(object): fmt = Event.QEMU_TRACE return fmt % {"name": self.name} + def transform(self, *trans): + """Return a new Event with transformed Arguments.""" + return Event(self.name, + list(self.properties), + self.fmt, + self.args.transform(*trans), + self) + def _read_events(fobj): res = [] |