[2.7] bpo-18174: regrtest -R 3:3 now also detects FD leak by vstinner · Pull Request #7409 · python/cpython
print >> sys.stderr, "beginning", repcount, "repetitions" print >> sys.stderr, ("1234567890"*(repcount//10 + 1))[:repcount] dash_R_cleanup(fs, ps, pic, zdc, abcs) # initialize variables to make pyflakes quiet rc_before = fd_before = 0 for i in range(repcount): rc_before = sys.gettotalrefcount() run_the_test() sys.stderr.write('.') dash_R_cleanup(fs, ps, pic, zdc, abcs) rc_after = sys.gettotalrefcount() fd_after = support.fd_count() if i >= nwarmup: deltas.append(rc_after - rc_before) rc_deltas[i - nwarmup] = rc_after - rc_before fd_deltas[i - nwarmup] = fd_after - fd_before rc_before = rc_after fd_before = fd_after print >> sys.stderr
# bpo-30776: Try to ignore false positives: # # [3, 0, 0] # [0, 1, 0] # [8, -8, 1] # # Expected leaks: # # [5, 5, 6] # [10, 1, 1] if all(delta >= 1 for delta in deltas): msg = '%s leaked %s references, sum=%s' % (test, deltas, sum(deltas)) print >> sys.stderr, msg with open(fname, "a") as refrep: print >> refrep, msg refrep.flush() return True return False # These checkers return False on success, True on failure def check_rc_deltas(deltas): # Checker for reference counters and memomry blocks. # # bpo-30776: Try to ignore false positives: # # [3, 0, 0] # [0, 1, 0] # [8, -8, 1] # # Expected leaks: # # [5, 5, 6] # [10, 1, 1] return all(delta >= 1 for delta in deltas)
def check_fd_deltas(deltas): return any(deltas)
failed = False for deltas, item_name, checker in [ (rc_deltas, 'references', check_rc_deltas), (fd_deltas, 'file descriptors', check_fd_deltas) ]: if checker(deltas): msg = '%s leaked %s %s, sum=%s' % (test, deltas, item_name, sum(deltas)) print >> sys.stderr, msg with open(fname, "a") as refrep: print >> refrep, msg refrep.flush() failed = True return failed
def dash_R_cleanup(fs, ps, pic, zdc, abcs): import gc, copy_reg