Upreckon: unix.py annotate

annotate unix.py @ 136:ed4035661b85

Added a C implementation of the unix module (called _unix)

author	Oleg Oshmyan <chortos@inbox.lv>
date	Tue, 24 May 2011 20:51:01 +0100
parents	e84f33a60a5c
children

rev	line source
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	1 # Copyright (c) 2010-2011 Chortos-2 <chortos@inbox.lv>
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	2
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	3 from __future__ import division, with_statement
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	4
91 c62c9bfd614a Removed import_error Oleg Oshmyan <chortos@inbox.lv> parents: 86 diff changeset	5 from compat import *
c62c9bfd614a Removed import_error Oleg Oshmyan <chortos@inbox.lv> parents: 86 diff changeset	6 import testcases # mutual import
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	7
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	8 from subprocess import Popen
86 8cd7a732f2f3 Fixed a crash in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 85 diff changeset	9 import os, sys, time
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	10
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	11 try:
85 741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	12 from testcases import clock
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	13 except ImportError:
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	14 if sys.platform.startswith('java'):
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	15 from time import clock
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	16 else:
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	17 from time import time as clock
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	18
741ae3391b61 Moved clock/time detection into platform-specific modules and testcases Oleg Oshmyan <chortos@inbox.lv> parents: 82 diff changeset	19 try:
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	20 from signal import SIGTERM, SIGKILL
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	21 except ImportError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	22 SIGTERM = 15
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	23 SIGKILL = 9
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	24
134 e84f33a60a5c Moved process killing logic into platform-specific modules Oleg Oshmyan <chortos@inbox.lv> parents: 129 diff changeset	25 __all__ = 'call', 'kill', 'pause', 'clock'
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	26
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	27
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	28 try:
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	29 from signal import SIGCHLD, SIG_DFL, signal, set_wakeup_fd
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	30 from select import select, error as SelectError
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	31 from errno import EAGAIN, EINTR
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	32 from fcntl import fcntl, F_SETFD, F_GETFD, F_SETFL, F_GETFL
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	33 from os import O_NONBLOCK
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	34 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	35 import cPickle as pickle
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	36 except ImportError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	37 import pickle
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	38 except ImportError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	39 def call(args, *kwargs):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	40 case = kwargs.pop('case')
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	41 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	42 case.process = Popen(args, *kwargs)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	43 except OSError:
94 b7fb64ce03d9 Fixed a couple of bugs Oleg Oshmyan <chortos@inbox.lv> parents: 91 diff changeset	44 raise testcases.CannotStartTestee(sys.exc_info()[1])
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	45 case.time_started = clock()
100 995502cdafc6 Fixed the generic implementation of call to use maxwalltime Oleg Oshmyan <chortos@inbox.lv> parents: 94 diff changeset	46 if not case.maxwalltime:
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	47 while True:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	48 exitcode, now = case.process.poll(), clock()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	49 if exitcode is not None:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	50 case.time_stopped = now
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	51 break
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	52 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	53 time.sleep(.001)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	54 else:
100 995502cdafc6 Fixed the generic implementation of call to use maxwalltime Oleg Oshmyan <chortos@inbox.lv> parents: 94 diff changeset	55 time_end = case.time_started + case.maxwalltime
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	56 while True:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	57 exitcode, now = case.process.poll(), clock()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	58 if exitcode is not None:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	59 case.time_stopped = now
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	60 break
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	61 elif now >= time_end:
126 fcdcd0c95552 Fixed the generic implementation of call to use testcases.WallTimeLimitExceeded Oleg Oshmyan <chortos@inbox.lv> parents: 124 diff changeset	62 raise testcases.WallTimeLimitExceeded
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	63 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	64 time.sleep(.001)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	65 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	66 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	67 from fcntl import FD_CLOEXEC
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	68 except ImportError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	69 FD_CLOEXEC = 1
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	70
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	71 try:
127 f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	72 from signal import siginterrupt
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	73 except ImportError:
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	74 # Sucks.
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	75 siginterrupt = lambda signalnum, flag: None
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	76
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	77 try:
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	78 from resource import getrusage, RUSAGE_SELF, RUSAGE_CHILDREN
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	79 except ImportError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	80 from time import clock as cpuclock
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	81 getrusage = lambda who: None
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	82 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	83 def cpuclock():
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	84 rusage = getrusage(RUSAGE_SELF)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	85 return rusage.ru_utime + rusage.ru_stime
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	86
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	87 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	88 from resource import setrlimit
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	89 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	90 from resource import RLIMIT_AS
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	91 except ImportError:
127 f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	92 from resource import RLIMIT_VMEM as RLIMIT_AS
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	93 except ImportError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	94 setrlimit = None
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	95
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	96 # Make SIGCHLD interrupt sleep() and select()
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	97 sigchld_pipe_read, sigchld_pipe_write = os.pipe()
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	98 fcntl(sigchld_pipe_read, F_SETFL,
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	99 fcntl(sigchld_pipe_read, F_GETFL) \| O_NONBLOCK)
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	100 fcntl(sigchld_pipe_write, F_SETFL,
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	101 fcntl(sigchld_pipe_write, F_GETFL) \| O_NONBLOCK)
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	102 def bury_child(signum, frame):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	103 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	104 bury_child.case.time_stopped = clock()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	105 except Exception:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	106 pass
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	107 signal(SIGCHLD, bury_child)
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	108 set_wakeup_fd(sigchld_pipe_write)
108 218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	109 class SignalIgnorer(object):
218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	110 def __enter__(self):
218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	111 signal(SIGCHLD, SIG_DFL)
218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	112 def __exit__(self, exc_type, exc_value, traceback):
218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	113 signal(SIGCHLD, bury_child)
218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	114 signal_ignorer = SignalIgnorer()
218b8c28549c Fixed a crash due to SIGCHLD interrupting validator output pipe reads Oleg Oshmyan <chortos@inbox.lv> parents: 100 diff changeset	115 __all__ += 'signal_ignorer',
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	116
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	117 # If you want this to work portably, don't set any stdio argument to PIPE
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	118 def call(args, *kwargs):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	119 global last_rusage
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	120 bury_child.case = case = kwargs.pop('case')
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	121 read, write = os.pipe()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	122 fcntl(write, F_SETFD, fcntl(write, F_GETFD) \| FD_CLOEXEC)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	123 def preexec_fn():
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	124 os.close(read)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	125 if setrlimit and case.maxmemory:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	126 maxmemory = ceil(case.maxmemory * 1048576)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	127 setrlimit(RLIMIT_AS, (maxmemory, maxmemory))
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	128 # I would also set a CPU time limit but I do not want the time
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	129 # passing between the calls to fork and exec to be counted in
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	130 os.write(write, pickle.dumps((clock(), cpuclock()), 1))
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	131 kwargs['preexec_fn'] = preexec_fn
127 f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	132 # So how the hell do I actually make use of pass_fds?
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	133 # On 3.1-, calling Popen with pass_fds prints an exception
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	134 # from Popen.__del__ to stderr. On 3.2, Popen without close_fds
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	135 # or pass_fds creates a child and fails but that of course
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	136 # generates a SIGCHLD, which causes problems, and I have
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	137 # no process ID to wait upon to negate the changes made
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	138 # by the SIGCHLD handler.
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	139 kwargs['close_fds'] = False
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	140 old_rusage = getrusage(RUSAGE_CHILDREN)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	141 last_rusage = None
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	142 while True:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	143 try:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	144 os.read(sigchld_pipe_read, 512)
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	145 except OSError:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	146 if sys.exc_info()[1].errno == EAGAIN:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	147 break
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	148 else:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	149 raise
124 19c42a3cd962 Very fast testees no longer break Popen on some UNIX systems on Python 2.6+ Oleg Oshmyan <chortos@inbox.lv> parents: 123 diff changeset	150 siginterrupt(SIGCHLD, False)
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	151 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	152 case.process = Popen(args, *kwargs)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	153 except OSError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	154 os.close(read)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	155 raise testcases.CannotStartTestee(sys.exc_info()[1])
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	156 finally:
124 19c42a3cd962 Very fast testees no longer break Popen on some UNIX systems on Python 2.6+ Oleg Oshmyan <chortos@inbox.lv> parents: 123 diff changeset	157 siginterrupt(SIGCHLD, True)
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	158 os.close(write)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	159 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	160 if not catch_escape:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	161 if case.maxwalltime:
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	162 try:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	163 select((sigchld_pipe_read,), (), (), case.maxwalltime)
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	164 except SelectError:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	165 if sys.exc_info()[1].args[0] != EINTR:
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	166 raise
129 580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	167 # subprocess in Python 2.6- is not guarded against EINTR
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	168 try:
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	169 if case.process.poll() is None:
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	170 raise testcases.WallTimeLimitExceeded
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	171 except OSError:
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	172 if sys.exc_info()[1].errno != EINTR:
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	173 raise
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	174 else:
580f0f4687c3 Fixed EINTR fatally breaking another poll() call on Python 2.6- Oleg Oshmyan <chortos@inbox.lv> parents: 128 diff changeset	175 case.process.poll()
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	176 else:
128 42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	177 wait(case.process)
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	178 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	179 if not case.maxwalltime:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	180 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	181 while case.process.poll() is None:
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	182 s = select((sys.stdin, sigchld_pipe_read), (), ())
127 f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	183 if (s[0] == [sys.stdin] and
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	184 sys.stdin.read(1) == '\33'):
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	185 raise testcases.CanceledByUser
128 42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	186 except (SelectError, IOError, OSError):
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	187 if sys.exc_info()[1].args[0] != EINTR:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	188 raise
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	189 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	190 case.process.poll()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	191 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	192 time_end = clock() + case.maxwalltime
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	193 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	194 while case.process.poll() is None:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	195 remaining = time_end - clock()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	196 if remaining > 0:
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	197 s = select((sys.stdin, sigchld_pipe_read),
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	198 (), (), remaining)
127 f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	199 if (s[0] == [sys.stdin] and
118 16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	200 sys.stdin.read(1) == '\33'):
16fe21d6582e Fixed a few race conditions in unix.call triggered by very fast testees Oleg Oshmyan <chortos@inbox.lv> parents: 108 diff changeset	201 raise testcases.CanceledByUser
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	202 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	203 raise testcases.WallTimeLimitExceeded
128 42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	204 except (SelectError, IOError, OSError):
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	205 if sys.exc_info()[1].args[0] != EINTR:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	206 raise
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	207 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	208 case.process.poll()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	209 finally:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	210 case.time_started, cpustart = pickle.loads(os.read(read, 512))
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	211 os.close(read)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	212 del bury_child.case
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	213 new_rusage = getrusage(RUSAGE_CHILDREN)
119 0b265fe9c81f Wall-clock time limit is now enforced on the output wall-clock time Oleg Oshmyan <chortos@inbox.lv> parents: 118 diff changeset	214 if (case.maxwalltime and
0b265fe9c81f Wall-clock time limit is now enforced on the output wall-clock time Oleg Oshmyan <chortos@inbox.lv> parents: 118 diff changeset	215 case.time_stopped - case.time_started > case.maxwalltime):
0b265fe9c81f Wall-clock time limit is now enforced on the output wall-clock time Oleg Oshmyan <chortos@inbox.lv> parents: 118 diff changeset	216 raise testcases.WallTimeLimitExceeded
123 90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	217 if new_rusage:
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	218 time_started = old_rusage.ru_utime + old_rusage.ru_stime + cpustart
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	219 time_stopped = new_rusage.ru_utime + new_rusage.ru_stime
127 f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	220 # Yes, this actually happens
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	221 if time_started > time_stopped:
f5b8a0c0e3cb Multiple bug fixes in the unix module Oleg Oshmyan <chortos@inbox.lv> parents: 126 diff changeset	222 time_started = time_stopped
123 90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	223 if case.maxcputime or not case.maxwalltime:
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	224 case.time_started = time_started
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	225 case.time_stopped = time_stopped
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	226 case.time_limit_string = case.cpu_time_limit_string
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	227 if (case.maxcputime and
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	228 time_stopped - time_started > case.maxcputime):
90c002c960cb Fixed CPU time display on UNIX Oleg Oshmyan <chortos@inbox.lv> parents: 119 diff changeset	229 raise testcases.CPUTimeLimitExceeded
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	230 if case.maxmemory:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	231 if sys.platform != 'darwin':
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	232 maxrss = case.maxmemory * 1024
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	233 else:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	234 maxrss = case.maxmemory * 1048576
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	235 if last_rusage and last_rusage.ru_maxrss > maxrss:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	236 raise testcases.MemoryLimitExceeded
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	237 elif (new_rusage and
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	238 new_rusage.ru_maxrss > old_rusage.ru_maxrss and
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	239 new_rusage.ru_maxrss > maxrss):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	240 raise testcases.MemoryLimitExceeded
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	241
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	242 # Emulate memory limits on platforms compatible with 4.3BSD but not XSI
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	243 # I say 'emulate' because the OS will allow excessive memory usage
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	244 # anyway; Upreckon will just treat the test case as not passed.
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	245 # To do this, we not only require os.wait4 to be present but also
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	246 # assume things about the implementation of subprocess.Popen.
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	247 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	248 def waitpid_emu(pid, options, _wait4=os.wait4):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	249 global last_rusage
128 42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	250 pid, status, last_rusage = _wait4(pid, options)
82 06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	251 return pid, status
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	252 _waitpid = os.waitpid
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	253 os.waitpid = waitpid_emu
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	254 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	255 defaults = Popen._internal_poll.__func__.__defaults__
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	256 except AttributeError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	257 # Python 2.5
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	258 defaults = Popen._internal_poll.im_func.func_defaults
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	259 i = defaults.index(_waitpid)
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	260 defaults = defaults[:i] + (waitpid_emu,) + defaults[i+1:]
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	261 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	262 Popen._internal_poll.__func__.__defaults__ = defaults
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	263 except AttributeError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	264 # Python 2.5 again
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	265 Popen._internal_poll.im_func.func_defaults = defaults
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	266 except (AttributeError, ValueError):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	267 pass
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	268
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	269
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	270 def kill(process):
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	271 try:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	272 process.kill()
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	273 except AttributeError:
06356af50bf9 Finished testcases reorganization and CPU time limit implementation Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	274 os.kill(process.pid, SIGKILL)
134 e84f33a60a5c Moved process killing logic into platform-specific modules Oleg Oshmyan <chortos@inbox.lv> parents: 129 diff changeset	275 wait(process)
128 42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	276
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	277
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	278 # subprocess in Python 2.6- is not guarded against EINTR
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	279 try:
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	280 from errno import EINTR
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	281 except ImportError:
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	282 wait = Popen.wait
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	283 else:
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	284 def wait(process):
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	285 while True:
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	286 try:
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	287 return process.wait()
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	288 except OSError:
42c8f5c152a5 Fixed EINTR fatally breaking poll/wait on Python 2.6- (for real this time) Oleg Oshmyan <chortos@inbox.lv> parents: 127 diff changeset	289 if sys.exc_info()[1].errno != EINTR:
136 ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	290 raise
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	291
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	292
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	293 try:
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	294 from _unix import *
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	295 except ImportError:
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	296 if not sys.stdin.isatty():
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	297 pause = lambda: sys.stdin.read(1)
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	298 catch_escape = False
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	299 else:
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	300 try:
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	301 from select import select
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	302 import termios, tty, atexit
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	303 except ImportError:
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	304 pause = lambda: sys.stdin.read(1)
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	305 catch_escape = False
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	306 else:
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	307 catch_escape = True
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	308 def cleanup(old=termios.tcgetattr(sys.stdin.fileno())):
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	309 termios.tcsetattr(sys.stdin.fileno(), termios.TCSAFLUSH, old)
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	310 atexit.register(cleanup)
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	311 tty.setcbreak(sys.stdin.fileno())
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	312 def pause():
ed4035661b85 Added a C implementation of the unix module (called _unix) Oleg Oshmyan <chortos@inbox.lv> parents: 134 diff changeset	313 sys.stdin.read(1)

Mercurial > ~astiob > upreckon > hgweb

annotate unix.py @ 136:ed4035661b85