本文整理匯總了Python中_winapi.NULL屬性的典型用法代碼示例。如果您正苦於以下問題：Python _winapi.NULL屬性的具體用法？Python _winapi.NULL怎麽用？Python _winapi.NULL使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類_winapi的用法示例。
在下文中一共展示了_winapi.NULL屬性的8個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: _server_pipe_handle
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def _server_pipe_handle(self, first):
# Return a wrapper for a new pipe handle.
if self.closed():
return None
flags = _winapi.PIPE_ACCESS_DUPLEX | _winapi.FILE_FLAG_OVERLAPPED
if first:
flags |= _winapi.FILE_FLAG_FIRST_PIPE_INSTANCE
h = _winapi.CreateNamedPipe(
self._address, flags,
_winapi.PIPE_TYPE_MESSAGE | _winapi.PIPE_READMODE_MESSAGE |
_winapi.PIPE_WAIT,
_winapi.PIPE_UNLIMITED_INSTANCES,
windows_utils.BUFSIZE, windows_utils.BUFSIZE,
_winapi.NMPWAIT_WAIT_FOREVER, _winapi.NULL)
pipe = windows_utils.PipeHandle(h)
self._free_instances.add(pipe)
return pipe 示例2: recv
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def recv(self, conn, nbytes, flags=0):
self._register_with_iocp(conn)
ov = _overlapped.Overlapped(NULL)
try:
if isinstance(conn, socket.socket):
ov.WSARecv(conn.fileno(), nbytes, flags)
else:
ov.ReadFile(conn.fileno(), nbytes)
except BrokenPipeError:
return self._result(b'')
def finish_recv(trans, key, ov):
try:
return ov.getresult()
except OSError as exc:
if exc.winerror == _overlapped.ERROR_NETNAME_DELETED:
raise ConnectionResetError(*exc.args)
else:
raise
return self._register(ov, conn, finish_recv) 示例3: send
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def send(self, conn, buf, flags=0):
self._register_with_iocp(conn)
ov = _overlapped.Overlapped(NULL)
if isinstance(conn, socket.socket):
ov.WSASend(conn.fileno(), buf, flags)
else:
ov.WriteFile(conn.fileno(), buf)
def finish_send(trans, key, ov):
try:
return ov.getresult()
except OSError as exc:
if exc.winerror == _overlapped.ERROR_NETNAME_DELETED:
raise ConnectionResetError(*exc.args)
else:
raise
return self._register(ov, conn, finish_send) 示例4: connect
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def connect(self, conn, address):
self._register_with_iocp(conn)
# The socket needs to be locally bound before we call ConnectEx().
try:
_overlapped.BindLocal(conn.fileno(), conn.family)
except OSError as e:
if e.winerror != errno.WSAEINVAL:
raise
# Probably already locally bound; check using getsockname().
if conn.getsockname()[1] == 0:
raise
ov = _overlapped.Overlapped(NULL)
ov.ConnectEx(conn.fileno(), address)
def finish_connect(trans, key, ov):
ov.getresult()
# Use SO_UPDATE_CONNECT_CONTEXT so getsockname() etc work.
conn.setsockopt(socket.SOL_SOCKET,
_overlapped.SO_UPDATE_CONNECT_CONTEXT, 0)
return conn
return self._register(ov, conn, finish_connect) 示例5: accept_pipe
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def accept_pipe(self, pipe):
self._register_with_iocp(pipe)
ov = _overlapped.Overlapped(NULL)
connected = ov.ConnectNamedPipe(pipe.fileno())
if connected:
# ConnectNamePipe() failed with ERROR_PIPE_CONNECTED which means
# that the pipe is connected. There is no need to wait for the
# completion of the connection.
return self._result(pipe)
def finish_accept_pipe(trans, key, ov):
ov.getresult()
return pipe
return self._register(ov, pipe, finish_accept_pipe) 示例6: recv
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def recv(self, conn, nbytes, flags=0):
self._register_with_iocp(conn)
ov = _overlapped.Overlapped(NULL)
try:
if isinstance(conn, socket.socket):
ov.WSARecv(conn.fileno(), nbytes, flags)
else:
ov.ReadFile(conn.fileno(), nbytes)
except BrokenPipeError:
return self._result(b'')
def finish_recv(trans, key, ov):
try:
return ov.getresult()
except OSError as exc:
if exc.winerror in (_overlapped.ERROR_NETNAME_DELETED,
_overlapped.ERROR_OPERATION_ABORTED):
raise ConnectionResetError(*exc.args)
else:
raise
return self._register(ov, conn, finish_recv) 示例7: recv_into
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def recv_into(self, conn, buf, flags=0):
self._register_with_iocp(conn)
ov = _overlapped.Overlapped(NULL)
try:
if isinstance(conn, socket.socket):
ov.WSARecvInto(conn.fileno(), buf, flags)
else:
ov.ReadFileInto(conn.fileno(), buf)
except BrokenPipeError:
return self._result(b'')
def finish_recv(trans, key, ov):
try:
return ov.getresult()
except OSError as exc:
if exc.winerror in (_overlapped.ERROR_NETNAME_DELETED,
_overlapped.ERROR_OPERATION_ABORTED):
raise ConnectionResetError(*exc.args)
else:
raise
return self._register(ov, conn, finish_recv) 示例8: sendfile
# 需要導入模塊: import _winapi [as 別名]
# 或者: from _winapi import NULL [as 別名]
def sendfile(self, sock, file, offset, count):
self._register_with_iocp(sock)
ov = _overlapped.Overlapped(NULL)
offset_low = offset & 0xffff_ffff
offset_high = (offset >> 32) & 0xffff_ffff
ov.TransmitFile(sock.fileno(),
msvcrt.get_osfhandle(file.fileno()),
offset_low, offset_high,
count, 0, 0)
def finish_sendfile(trans, key, ov):
try:
return ov.getresult()
except OSError as exc:
if exc.winerror in (_overlapped.ERROR_NETNAME_DELETED,
_overlapped.ERROR_OPERATION_ABORTED):
raise ConnectionResetError(*exc.args)
else:
raise
return self._register(ov, sock, finish_sendfile)