Mercurial > ~astiob > upreckon > hgweb
annotate problem.py @ 82:06356af50bf9
Finished testcases reorganization and CPU time limit implementation
We now have:
* Win32-specific code in the win32 module (including bug fixes),
* UNIX-specific and generic code in the unix module,
* a much cleaner testcases module,
* wait4-based resource limits working on Python 3 (this is a bug fix),
* no warning/error reported on non-Win32 when -x is not passed
but standard input does not come from a terminal,
* the maxtime configuration variable replaced with two new variables
named maxcputime and maxwalltime,
* CPU time reported if it can be determined unless an error occurs sooner
than it is determined (e. g. if the wall-clock time limit is exceeded),
* memory limits enforced even if Upreckon's forking already breaks them,
* CPU time limits and private virtual memory limits honoured on Win32,
* CPU time limits honoured on UNIX(-like) platforms supporting wait4
or getrusage,
* address space limits honoured on UNIX(-like) platforms supporting
setrlimit with RLIMIT_AS/RLIMIT_VMEM,
* resident set size limits honoured on UNIX(-like) platforms supporting
wait4.
| author | Oleg Oshmyan <chortos@inbox.lv> |
|---|---|
| date | Wed, 23 Feb 2011 23:35:27 +0000 |
| parents | 69eadc60f4e2 |
| children | 37c4ad87583c |
| rev | line source |
|---|---|
| 21 | 1 #! /usr/bin/env python |
|
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2 # Copyright (c) 2010-2011 Chortos-2 <chortos@inbox.lv> |
| 16 | 3 |
| 21 | 4 from __future__ import division, with_statement |
| 5 | |
| 6 try: | |
| 7 from compat import * | |
| 8 import config, testcases | |
| 9 except ImportError: | |
| 10 import __main__ | |
| 11 __main__.import_error(sys.exc_info()[1]) | |
| 12 else: | |
| 22 | 13 from __main__ import clock, options |
| 21 | 14 |
| 22 | 15 import os, re, sys |
| 21 | 16 |
| 16 | 17 try: |
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18 from collections import deque |
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19 except ImportError: |
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20 deque = list |
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21 |
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22 try: |
| 21 | 23 import signal |
| 24 except ImportError: | |
| 25 signalnames = () | |
| 26 else: | |
| 27 # Construct a cache of all signal names available on the current | |
| 28 # platform. Prefer names from the UNIX standards over other versions. | |
| 29 unixnames = frozenset(('HUP', 'INT', 'QUIT', 'ILL', 'ABRT', 'FPE', 'KILL', 'SEGV', 'PIPE', 'ALRM', 'TERM', 'USR1', 'USR2', 'CHLD', 'CONT', 'STOP', 'TSTP', 'TTIN', 'TTOU', 'BUS', 'POLL', 'PROF', 'SYS', 'TRAP', 'URG', 'VTALRM', 'XCPU', 'XFSZ')) | |
| 30 signalnames = {} | |
| 31 for name in dir(signal): | |
| 32 if re.match('SIG[A-Z]+$', name): | |
| 33 value = signal.__dict__[name] | |
| 22 | 34 if isinstance(value, int) and (value not in signalnames or name[3:] in unixnames): |
| 21 | 35 signalnames[value] = name |
| 36 del unixnames | |
| 16 | 37 |
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38 __all__ = 'Problem', 'TestContext', 'test_context_end', 'TestGroup' |
| 21 | 39 |
| 26 | 40 def strerror(e): |
| 41 s = getattr(e, 'strerror') | |
| 42 if not s: s = str(e) | |
| 43 return ' (%s%s)' % (s[0].lower(), s[1:]) if s else '' | |
| 21 | 44 |
| 45 class Cache(object): | |
| 46 def __init__(self, mydict): | |
| 47 self.__dict__ = mydict | |
| 16 | 48 |
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49 class TestContext(object): |
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50 pass |
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51 |
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52 test_context_end = object() |
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53 |
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54 class TestGroup(TestContext): |
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55 __slots__ = 'points', 'case', 'log', 'correct', 'allcorrect', 'real', 'max', 'ntotal', 'nvalued', 'ncorrect', 'ncorrectvalued' |
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56 |
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57 def __init__(self, points=None): |
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58 self.points = points |
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59 self.real = self.max = self.ntotal = self.nvalued = self.ncorrect = self.ncorrectvalued = 0 |
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60 self.allcorrect = True |
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61 self.log = [] |
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62 |
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63 def case_start(self, case): |
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64 self.case = case |
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65 self.correct = False |
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66 self.ntotal += 1 |
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67 if case.points: |
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68 self.nvalued += 1 |
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69 |
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70 def case_correct(self): |
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71 self.correct = True |
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72 self.ncorrect += 1 |
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73 if self.case.points: |
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74 self.ncorrectvalued += 1 |
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75 |
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76 def case_end(self): |
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77 self.log.append((self.case, self.correct)) |
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78 del self.case |
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79 if not self.correct: |
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80 self.allcorrect = False |
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81 |
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82 def score(self, real, max): |
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83 self.real += real |
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84 self.max += max |
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85 |
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86 def end(self): |
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87 if not self.allcorrect: |
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88 self.real = 0 |
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89 if self.points is not None and self.points != self.max: |
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90 max, weighted = self.points, self.real * self.points / self.max if self.max else 0 |
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91 before_weighting = ' (%g/%g before weighting)' % (self.real, self.max) |
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92 else: |
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93 max, weighted = self.max, self.real |
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94 before_weighting = '' |
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95 say('Group total: %d/%d tests, %g/%g points%s' % (self.ncorrect, self.ntotal, weighted, max, before_weighting)) |
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96 # No real need to flush stdout, as it will anyway be flushed in a moment, |
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97 # when either the problem total or the next test case's ID is printed |
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98 return weighted, max, self.log |
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99 |
| 16 | 100 class Problem(object): |
| 101 __slots__ = 'name', 'config', 'cache', 'testcases' | |
| 102 | |
| 103 def __init__(prob, name): | |
| 104 if not isinstance(name, basestring): | |
| 105 # This shouldn't happen, of course | |
| 21 | 106 raise TypeError('Problem() argument 1 must be string, not ' + type(name).__name__) |
| 16 | 107 prob.name = name |
| 21 | 108 prob.config = config.load_problem(name) |
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109 prob.cache = Cache({'padoutput': 0}) |
| 21 | 110 prob.testcases = testcases.load_problem(prob) |
| 111 | |
| 112 # TODO | |
| 113 def build(prob): | |
| 114 raise NotImplementedError | |
| 16 | 115 |
| 116 def test(prob): | |
| 23 | 117 case = None |
| 22 | 118 try: |
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119 contexts = deque((TestGroup(),)) |
| 22 | 120 for case in prob.testcases: |
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121 if case is test_context_end: |
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122 real, max, log = contexts.pop().end() |
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123 for case, correct in log: |
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124 contexts[-1].case_start(case) |
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125 if correct: |
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126 contexts[-1].case_correct() |
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127 contexts[-1].case_end() |
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128 contexts[-1].score(real, max) |
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129 continue |
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130 elif isinstance(case, TestContext): |
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131 contexts.append(case) |
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132 continue |
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133 contexts[-1].case_start(case) |
| 22 | 134 granted = 0 |
| 135 id = str(case.id) | |
| 136 if case.isdummy: | |
| 137 id = 'sample ' + id | |
| 138 say('%*s: ' % (prob.cache.padoutput, id), end='') | |
| 139 sys.stdout.flush() | |
| 140 try: | |
| 141 granted = case(lambda: (say('%7.3f%s s, ' % (case.time_stopped - case.time_started, case.time_limit_string), end=''), sys.stdout.flush())) | |
| 142 except testcases.CanceledByUser: | |
| 143 verdict = 'canceled by the user' | |
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144 except testcases.WallTimeLimitExceeded: |
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145 verdict = 'wall-clock time limit exceeded' |
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146 except testcases.CPUTimeLimitExceeded: |
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147 verdict = 'CPU time limit exceeded' |
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148 except testcases.MemoryLimitExceeded: |
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149 verdict = 'memory limit exceeded' |
| 22 | 150 except testcases.WrongAnswer: |
| 151 e = sys.exc_info()[1] | |
| 152 if e.comment: | |
| 153 verdict = 'wrong answer (%s)' % e.comment | |
| 154 else: | |
| 155 verdict = 'wrong answer' | |
| 156 except testcases.NonZeroExitCode: | |
| 157 e = sys.exc_info()[1] | |
| 158 if e.exitcode < 0: | |
| 159 if sys.platform == 'win32': | |
| 160 verdict = 'terminated with error 0x%X' % (e.exitcode + 0x100000000) | |
| 161 elif -e.exitcode in signalnames: | |
| 162 verdict = 'terminated by signal %d (%s)' % (-e.exitcode, signalnames[-e.exitcode]) | |
| 163 else: | |
| 164 verdict = 'terminated by signal %d' % -e.exitcode | |
| 21 | 165 else: |
| 22 | 166 verdict = 'non-zero return code %d' % e.exitcode |
| 167 except testcases.CannotStartTestee: | |
| 26 | 168 verdict = 'cannot launch the program to test%s' % strerror(sys.exc_info()[1].upstream) |
| 22 | 169 except testcases.CannotStartValidator: |
| 26 | 170 verdict = 'cannot launch the validator%s' % strerror(sys.exc_info()[1].upstream) |
| 22 | 171 except testcases.CannotReadOutputFile: |
| 26 | 172 verdict = 'cannot read the output file%s' % strerror(sys.exc_info()[1].upstream) |
| 22 | 173 except testcases.CannotReadInputFile: |
| 26 | 174 verdict = 'cannot read the input file%s' % strerror(sys.exc_info()[1].upstream) |
| 22 | 175 except testcases.CannotReadAnswerFile: |
| 26 | 176 verdict = 'cannot read the reference output file%s' % strerror(sys.exc_info()[1].upstream) |
| 22 | 177 except testcases.TestCaseNotPassed: |
| 26 | 178 verdict = 'unspecified reason [this may be a bug in test.py]%s' % strerror(sys.exc_info()[1]) |
| 22 | 179 #except Exception: |
| 26 | 180 # verdict = 'unknown error [this may be a bug in test.py]%s' % strerror(sys.exc_info()[1]) |
| 21 | 181 else: |
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182 try: |
| 22 | 183 granted, comment = granted |
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184 except TypeError: |
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185 comment = '' |
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186 else: |
| 22 | 187 if comment: |
| 188 comment = ' (%s)' % comment | |
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189 if granted >= 1: |
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190 contexts[-1].case_correct() |
| 22 | 191 verdict = 'OK' + comment |
| 192 elif not granted: | |
| 193 verdict = 'wrong answer' + comment | |
| 194 else: | |
| 195 verdict = 'partly correct' + comment | |
| 26 | 196 granted *= case.points |
| 22 | 197 say('%g/%g, %s' % (granted, case.points, verdict)) |
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198 contexts[-1].case_end() |
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199 contexts[-1].score(granted, case.points) |
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200 weighted = contexts[0].real * prob.config.taskweight / contexts[0].max if contexts[0].max else 0 |
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201 before_weighting = valued = '' |
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202 if prob.config.taskweight != contexts[0].max: |
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203 before_weighting = ' (%g/%g before weighting)' % (contexts[0].real, contexts[0].max) |
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204 if contexts[0].nvalued != contexts[0].ntotal: |
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205 valued = ' (%d/%d valued)' % (contexts[0].ncorrectvalued, contexts[0].nvalued) |
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206 say('Problem total: %d/%d tests%s, %g/%g points%s' % (contexts[0].ncorrect, contexts[0].ntotal, valued, weighted, prob.config.taskweight, before_weighting)) |
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207 sys.stdout.flush() |
| 22 | 208 return weighted, prob.config.taskweight |
| 209 finally: | |
| 23 | 210 if options.erase and (not prob.config.stdio or case and case.validator): |
| 22 | 211 for var in 'in', 'out': |
| 212 name = getattr(prob.config, var + 'name') | |
| 213 if name: | |
| 214 try: | |
| 215 os.remove(name) | |
| 216 except Exception: | |
| 217 pass | |
| 218 if case.validator and not callable(case.validator): | |
| 219 if prob.config.ansname: | |
| 220 try: | |
| 221 os.remove(prob.config.ansname) | |
| 222 except Exception: | |
| 223 pass |