Python signal.ITIMER_REAL Examples
The following are 30
code examples of signal.ITIMER_REAL().
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Example #1
Source File: test_signal.py From android_universal with MIT License | 6 votes |
def measure_itimer_resolution(self): N = 20 times = [] def handler(signum=None, frame=None): if len(times) < N: times.append(time.perf_counter()) # 1 µs is the smallest possible timer interval, # we want to measure what the concrete duration # will be on this platform signal.setitimer(signal.ITIMER_REAL, 1e-6) self.addCleanup(signal.setitimer, signal.ITIMER_REAL, 0) self.setsig(signal.SIGALRM, handler) handler() while len(times) < N: time.sleep(1e-3) durations = [times[i+1] - times[i] for i in range(len(times) - 1)] med = statistics.median(durations) if support.verbose: print("detected median itimer() resolution: %.6f s." % (med,)) return med
Example #2
Source File: test_signal.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #3
Source File: test_signal.py From CTFCrackTools with GNU General Public License v3.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True)
Example #4
Source File: test_signal.py From CTFCrackTools with GNU General Public License v3.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #5
Source File: scalene.py From scalene with Apache License 2.0 | 5 votes |
def set_timer_signal(use_wallclock_time: bool = False) -> None: """Set up timer signals for CPU profiling.""" if use_wallclock_time: Scalene.__cpu_timer_signal = signal.ITIMER_REAL else: Scalene.__cpu_timer_signal = signal.ITIMER_VIRTUAL # Now set the appropriate timer signal. if Scalene.__cpu_timer_signal == signal.ITIMER_REAL: Scalene.__cpu_signal = signal.SIGALRM elif Scalene.__cpu_timer_signal == signal.ITIMER_VIRTUAL: Scalene.__cpu_signal = signal.SIGVTALRM elif Scalene.__cpu_timer_signal == signal.ITIMER_PROF: # NOT SUPPORTED assert False, "ITIMER_PROF is not currently supported."
Example #6
Source File: test_signal.py From android_universal with MIT License | 5 votes |
def test_setitimer_tiny(self): # bpo-30807: C setitimer() takes a microsecond-resolution interval. # Check that float -> timeval conversion doesn't round # the interval down to zero, which would disable the timer. self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1e-6) time.sleep(1) self.assertEqual(self.hndl_called, True)
Example #7
Source File: test_signal.py From android_universal with MIT License | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864, unknown if this affects earlier versions of freebsd also
Example #8
Source File: test_signal.py From android_universal with MIT License | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #9
Source File: test_signal.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True)
Example #10
Source File: test_signal.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #11
Source File: test_signal.py From medicare-demo with Apache License 2.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True)
Example #12
Source File: test_signal.py From medicare-demo with Apache License 2.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #13
Source File: test_signal.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 5 votes |
def test_setitimer_tiny(self): # bpo-30807: C setitimer() takes a microsecond-resolution interval. # Check that float -> timeval conversion doesn't round # the interval down to zero, which would disable the timer. self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1e-6) time.sleep(1) self.assertEqual(self.hndl_called, True)
Example #14
Source File: test_signal.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864, unknown if this affects earlier versions of freebsd also
Example #15
Source File: test_signal.py From ironpython2 with Apache License 2.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #16
Source File: test_signal.py From gcblue with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864. Unknown if this affects earlier versions of freebsd also.
Example #17
Source File: test_signal.py From gcblue with BSD 3-Clause "New" or "Revised" License | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #18
Source File: test_signal.py From ironpython3 with Apache License 2.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864, unknown if this affects earlier versions of freebsd also
Example #19
Source File: test_signal.py From ironpython3 with Apache License 2.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #20
Source File: test_signal.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864, unknown if this affects earlier versions of freebsd also
Example #21
Source File: test_signal.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #22
Source File: timeout_callback_manager.py From n6 with GNU Affero General Public License v3.0 | 5 votes |
def _unset_alarm(cls): return cls._setitimer(signal.ITIMER_REAL, 0)
Example #23
Source File: timeout_callback_manager.py From n6 with GNU Affero General Public License v3.0 | 5 votes |
def _set_nonzero_alarm(cls, timeout, repeat_interval=0): actual_timeout = max(cls.MINIMAL_TIMEOUT, timeout) cls._setitimer(signal.ITIMER_REAL, actual_timeout, repeat_interval)
Example #24
Source File: test_signal.py From oss-ftp with MIT License | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864. Unknown if this affects earlier versions of freebsd also.
Example #25
Source File: test_signal.py From oss-ftp with MIT License | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #26
Source File: test_signal.py From BinderFilter with MIT License | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864. Unknown if this affects earlier versions of freebsd also.
Example #27
Source File: test_signal.py From BinderFilter with MIT License | 5 votes |
def test_itimer_exc(self): # XXX I'm assuming -1 is an invalid itimer, but maybe some platform # defines it ? self.assertRaises(signal.ItimerError, signal.setitimer, -1, 0) # Negative times are treated as zero on some platforms. if 0: self.assertRaises(signal.ItimerError, signal.setitimer, signal.ITIMER_REAL, -1)
Example #28
Source File: test_signal.py From ironpython2 with Apache License 2.0 | 5 votes |
def test_setitimer_tiny(self): # bpo-30807: C setitimer() takes a microsecond-resolution interval. # Check that float -> timeval conversion doesn't round # the interval down to zero, which would disable the timer. self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1e-6) time.sleep(1) self.assertEqual(self.hndl_called, True)
Example #29
Source File: test_signal.py From ironpython2 with Apache License 2.0 | 5 votes |
def test_itimer_real(self): self.itimer = signal.ITIMER_REAL signal.setitimer(self.itimer, 1.0) if test_support.verbose: print("\ncall pause()...") signal.pause() self.assertEqual(self.hndl_called, True) # Issue 3864. Unknown if this affects earlier versions of freebsd also.
Example #30
Source File: test_signal.py From android_universal with MIT License | 4 votes |
def test_stress_delivery_dependent(self): """ This test uses dependent signal handlers. """ N = self.decide_itimer_count() sigs = [] def first_handler(signum, frame): # 1e-6 is the minimum non-zero value for `setitimer()`. # Choose a random delay so as to improve chances of # triggering a race condition. Ideally the signal is received # when inside critical signal-handling routines such as # Py_MakePendingCalls(). signal.setitimer(signal.ITIMER_REAL, 1e-6 + random.random() * 1e-5) def second_handler(signum=None, frame=None): sigs.append(signum) # Here on Linux, SIGPROF > SIGALRM > SIGUSR1. By using both # ascending and descending sequences (SIGUSR1 then SIGALRM, # SIGPROF then SIGALRM), we maximize chances of hitting a bug. self.setsig(signal.SIGPROF, first_handler) self.setsig(signal.SIGUSR1, first_handler) self.setsig(signal.SIGALRM, second_handler) # for ITIMER_REAL expected_sigs = 0 deadline = time.monotonic() + 15.0 while expected_sigs < N: os.kill(os.getpid(), signal.SIGPROF) expected_sigs += 1 # Wait for handlers to run to avoid signal coalescing while len(sigs) < expected_sigs and time.monotonic() < deadline: time.sleep(1e-5) os.kill(os.getpid(), signal.SIGUSR1) expected_sigs += 1 while len(sigs) < expected_sigs and time.monotonic() < deadline: time.sleep(1e-5) # All ITIMER_REAL signals should have been delivered to the # Python handler self.assertEqual(len(sigs), N, "Some signals were lost")