diff options
Diffstat (limited to 'Lib/hotshot/stats.py')
-rw-r--r-- | Lib/hotshot/stats.py | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/Lib/hotshot/stats.py b/Lib/hotshot/stats.py deleted file mode 100644 index e927bd5..0000000 --- a/Lib/hotshot/stats.py +++ /dev/null @@ -1,93 +0,0 @@ -"""Statistics analyzer for HotShot.""" - -import profile -import pstats - -import hotshot.log - -from hotshot.log import ENTER, EXIT - - -def load(filename): - return StatsLoader(filename).load() - - -class StatsLoader: - def __init__(self, logfn): - self._logfn = logfn - self._code = {} - self._stack = [] - self.pop_frame = self._stack.pop - - def load(self): - # The timer selected by the profiler should never be used, so make - # sure it doesn't work: - p = Profile() - p.get_time = _brokentimer - log = hotshot.log.LogReader(self._logfn) - taccum = 0 - for event in log: - what, (filename, lineno, funcname), tdelta = event - if tdelta > 0: - taccum += tdelta - - # We multiply taccum to convert from the microseconds we - # have to the seconds that the profile/pstats module work - # with; this allows the numbers to have some basis in - # reality (ignoring calibration issues for now). - - if what == ENTER: - frame = self.new_frame(filename, lineno, funcname) - p.trace_dispatch_call(frame, taccum * .000001) - taccum = 0 - - elif what == EXIT: - frame = self.pop_frame() - p.trace_dispatch_return(frame, taccum * .000001) - taccum = 0 - - # no further work for line events - - assert not self._stack - return pstats.Stats(p) - - def new_frame(self, *args): - # args must be filename, firstlineno, funcname - # our code objects are cached since we don't need to create - # new ones every time - try: - code = self._code[args] - except KeyError: - code = FakeCode(*args) - self._code[args] = code - # frame objects are create fresh, since the back pointer will - # vary considerably - if self._stack: - back = self._stack[-1] - else: - back = None - frame = FakeFrame(code, back) - self._stack.append(frame) - return frame - - -class Profile(profile.Profile): - def simulate_cmd_complete(self): - pass - - -class FakeCode: - def __init__(self, filename, firstlineno, funcname): - self.co_filename = filename - self.co_firstlineno = firstlineno - self.co_name = self.__name__ = funcname - - -class FakeFrame: - def __init__(self, code, back): - self.f_back = back - self.f_code = code - - -def _brokentimer(): - raise RuntimeError("this timer should not be called") |