C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// """Various Windows specific bits and pieces.""" import sys if sys.platform != 'win32': # pragma: no cover raise ImportError('win32 only') import _winapi import itertools import msvcrt import os import subprocess import tempfile import warnings __all__ = 'pipe', 'Popen', 'PIPE', 'PipeHandle' # Constants/globals BUFSIZE = 8192 PIPE = subprocess.PIPE STDOUT = subprocess.STDOUT _mmap_counter = itertools.count() # Replacement for os.pipe() using handles instead of fds def pipe(*, duplex=False, overlapped=(True, True), bufsize=BUFSIZE): """Like os.pipe() but with overlapped support and using handles not fds.""" address = tempfile.mktemp( prefix=r'\\.\pipe\python-pipe-{:d}-{:d}-'.format( os.getpid(), next(_mmap_counter))) if duplex: openmode = _winapi.PIPE_ACCESS_DUPLEX access = _winapi.GENERIC_READ | _winapi.GENERIC_WRITE obsize, ibsize = bufsize, bufsize else: openmode = _winapi.PIPE_ACCESS_INBOUND access = _winapi.GENERIC_WRITE obsize, ibsize = 0, bufsize openmode |= _winapi.FILE_FLAG_FIRST_PIPE_INSTANCE if overlapped[0]: openmode |= _winapi.FILE_FLAG_OVERLAPPED if overlapped[1]: flags_and_attribs = _winapi.FILE_FLAG_OVERLAPPED else: flags_and_attribs = 0 h1 = h2 = None try: h1 = _winapi.CreateNamedPipe( address, openmode, _winapi.PIPE_WAIT, 1, obsize, ibsize, _winapi.NMPWAIT_WAIT_FOREVER, _winapi.NULL) h2 = _winapi.CreateFile( address, access, 0, _winapi.NULL, _winapi.OPEN_EXISTING, flags_and_attribs, _winapi.NULL) ov = _winapi.ConnectNamedPipe(h1, overlapped=True) ov.GetOverlappedResult(True) return h1, h2 except: if h1 is not None: _winapi.CloseHandle(h1) if h2 is not None: _winapi.CloseHandle(h2) raise # Wrapper for a pipe handle class PipeHandle: """Wrapper for an overlapped pipe handle which is vaguely file-object like. The IOCP event loop can use these instead of socket objects. """ def __init__(self, handle): self._handle = handle def __repr__(self): if self._handle is not None: handle = f'handle={self._handle!r}' else: handle = 'closed' return f'<{self.__class__.__name__} {handle}>' @property def handle(self): return self._handle def fileno(self): if self._handle is None: raise ValueError("I/O operation on closed pipe") return self._handle def close(self, *, CloseHandle=_winapi.CloseHandle): if self._handle is not None: CloseHandle(self._handle) self._handle = None def __del__(self): if self._handle is not None: warnings.warn(f"unclosed {self!r}", ResourceWarning, source=self) self.close() def __enter__(self): return self def __exit__(self, t, v, tb): self.close() # Replacement for subprocess.Popen using overlapped pipe handles class Popen(subprocess.Popen): """Replacement for subprocess.Popen using overlapped pipe handles. The stdin, stdout, stderr are None or instances of PipeHandle. ""