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109 lines
2.4 KiB
109 lines
2.4 KiB
"""0MQ Constants."""
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# Copyright (c) PyZMQ Developers.
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# Distributed under the terms of the Modified BSD License.
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from zmq.backend import constants
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from zmq.backend import has
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from zmq.utils.constant_names import (
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base_names,
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switched_sockopt_names,
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int_sockopt_names,
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int64_sockopt_names,
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bytes_sockopt_names,
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fd_sockopt_names,
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ctx_opt_names,
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msg_opt_names,
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)
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#-----------------------------------------------------------------------------
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# Python module level constants
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#-----------------------------------------------------------------------------
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__all__ = [
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'int_sockopts',
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'int64_sockopts',
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'bytes_sockopts',
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'ctx_opts',
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'ctx_opt_names',
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'DRAFT_API',
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]
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if constants.VERSION < 40200:
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DRAFT_API = False
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else:
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DRAFT_API = bool(has('draft') and constants.DRAFT_API)
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int_sockopts = set()
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int64_sockopts = set()
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bytes_sockopts = set()
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fd_sockopts = set()
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ctx_opts = set()
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msg_opts = set()
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if constants.VERSION < 30000:
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int64_sockopt_names.extend(switched_sockopt_names)
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else:
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int_sockopt_names.extend(switched_sockopt_names)
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_UNDEFINED = -9999
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def _add_constant(name, container=None):
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"""add a constant to be defined
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optionally add it to one of the sets for use in get/setopt checkers
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"""
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c = getattr(constants, name, _UNDEFINED)
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if c == _UNDEFINED:
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return
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globals()[name] = c
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__all__.append(name)
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if container is not None:
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container.add(c)
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return c
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for name in base_names:
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_add_constant(name)
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for name in int_sockopt_names:
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_add_constant(name, int_sockopts)
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for name in int64_sockopt_names:
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_add_constant(name, int64_sockopts)
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for name in bytes_sockopt_names:
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_add_constant(name, bytes_sockopts)
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for name in fd_sockopt_names:
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_add_constant(name, fd_sockopts)
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for name in ctx_opt_names:
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_add_constant(name, ctx_opts)
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for name in msg_opt_names:
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_add_constant(name, msg_opts)
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# ensure some aliases are always defined
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aliases = [
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('DONTWAIT', 'NOBLOCK'),
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('XREQ', 'DEALER'),
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('XREP', 'ROUTER'),
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]
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for group in aliases:
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undefined = set()
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found = None
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for name in group:
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value = getattr(constants, name, -1)
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if value != -1:
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found = value
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else:
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undefined.add(name)
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if found is not None:
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for name in undefined:
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globals()[name] = found
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__all__.append(name)
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