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10/02/2024 07:52:55 PM
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__init__.py
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__pycache__
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connection.py
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context.py
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dummy
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forkserver.py
7.78 KB
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heap.py
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managers.py
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pool.py
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popen_fork.py
2.27 KB
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popen_forkserver.py
1.92 KB
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popen_spawn_posix.py
1.87 KB
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popen_spawn_win32.py
2.93 KB
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process.py
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queues.py
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reduction.py
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resource_sharer.py
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semaphore_tracker.py
4.71 KB
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sharedctypes.py
6.08 KB
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spawn.py
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synchronize.py
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util.py
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Editing: popen_spawn_win32.py
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import os import msvcrt import signal import sys import _winapi from . import context from . import spawn from . import reduction from . import util __all__ = ['Popen'] # # # TERMINATE = 0x10000 WINEXE = (sys.platform == 'win32' and getattr(sys, 'frozen', False)) WINSERVICE = sys.executable.lower().endswith("pythonservice.exe") # # We define a Popen class similar to the one from subprocess, but # whose constructor takes a process object as its argument. # class Popen(object): ''' Start a subprocess to run the code of a process object ''' method = 'spawn' def __init__(self, process_obj): prep_data = spawn.get_preparation_data(process_obj._name) # read end of pipe will be "stolen" by the child process # -- see spawn_main() in spawn.py. rhandle, whandle = _winapi.CreatePipe(None, 0) wfd = msvcrt.open_osfhandle(whandle, 0) cmd = spawn.get_command_line(parent_pid=os.getpid(), pipe_handle=rhandle) cmd = ' '.join('"%s"' % x for x in cmd) with open(wfd, 'wb', closefd=True) as to_child: # start process try: hp, ht, pid, tid = _winapi.CreateProcess( spawn.get_executable(), cmd, None, None, False, 0, None, None, None) _winapi.CloseHandle(ht) except: _winapi.CloseHandle(rhandle) raise # set attributes of self self.pid = pid self.returncode = None self._handle = hp self.sentinel = int(hp) util.Finalize(self, _winapi.CloseHandle, (self.sentinel,)) # send information to child context.set_spawning_popen(self) try: reduction.dump(prep_data, to_child) reduction.dump(process_obj, to_child) finally: context.set_spawning_popen(None) def duplicate_for_child(self, handle): assert self is context.get_spawning_popen() return reduction.duplicate(handle, self.sentinel) def wait(self, timeout=None): if self.returncode is None: if timeout is None: msecs = _winapi.INFINITE else: msecs = max(0, int(timeout * 1000 + 0.5)) res = _winapi.WaitForSingleObject(int(self._handle), msecs) if res == _winapi.WAIT_OBJECT_0: code = _winapi.GetExitCodeProcess(self._handle) if code == TERMINATE: code = -signal.SIGTERM self.returncode = code return self.returncode def poll(self): return self.wait(timeout=0) def terminate(self): if self.returncode is None: try: _winapi.TerminateProcess(int(self._handle), TERMINATE) except OSError: if self.wait(timeout=1.0) is None: raise