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"""
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lsprofcalltree.py - lsprof output which is readable by kcachegrind
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Authors:
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* David Allouche <david <at> allouche.net>
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* Jp Calderone & Itamar Shtull-Trauring
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* Johan Dahlin
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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"""
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from __future__ import annotations
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from . import pycompat
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def label(code):
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if isinstance(code, str):
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# built-in functions ('~' sorts at the end)
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return b'~' + pycompat.sysbytes(code)
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else:
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return b'%s %s:%d' % (
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pycompat.sysbytes(code.co_name),
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pycompat.sysbytes(code.co_filename),
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code.co_firstlineno,
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)
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class KCacheGrind:
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def __init__(self, profiler):
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self.data = profiler.getstats()
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self.out_file = None
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def output(self, out_file):
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self.out_file = out_file
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out_file.write(b'events: Ticks\n')
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self._print_summary()
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for entry in self.data:
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self._entry(entry)
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def _print_summary(self):
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max_cost = 0
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for entry in self.data:
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totaltime = int(entry.totaltime * 1000)
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max_cost = max(max_cost, totaltime)
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self.out_file.write(b'summary: %d\n' % max_cost)
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def _entry(self, entry):
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out_file = self.out_file
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code = entry.code
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if isinstance(code, str):
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out_file.write(b'fi=~\n')
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else:
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out_file.write(b'fi=%s\n' % pycompat.sysbytes(code.co_filename))
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out_file.write(b'fn=%s\n' % label(code))
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inlinetime = int(entry.inlinetime * 1000)
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if isinstance(code, str):
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out_file.write(b'0 %d\n' % inlinetime)
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else:
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out_file.write(b'%d %d\n' % (code.co_firstlineno, inlinetime))
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# recursive calls are counted in entry.calls
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if entry.calls:
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calls = entry.calls
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else:
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calls = []
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if isinstance(code, str):
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lineno = 0
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else:
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lineno = code.co_firstlineno
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for subentry in calls:
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self._subentry(lineno, subentry)
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out_file.write(b'\n')
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def _subentry(self, lineno, subentry):
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out_file = self.out_file
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code = subentry.code
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out_file.write(b'cfn=%s\n' % label(code))
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if isinstance(code, str):
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out_file.write(b'cfi=~\n')
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out_file.write(b'calls=%d 0\n' % subentry.callcount)
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else:
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out_file.write(b'cfi=%s\n' % pycompat.sysbytes(code.co_filename))
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out_file.write(
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b'calls=%d %d\n' % (subentry.callcount, code.co_firstlineno)
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)
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totaltime = int(subentry.totaltime * 1000)
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out_file.write(b'%d %d\n' % (lineno, totaltime))
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