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authorgatecat <gatecat@ds0.me>2021-09-24 19:20:36 +0100
committerGitHub <noreply@github.com>2021-09-24 19:20:36 +0100
commitd44b6acaa9f724694081139b2e88266af8acbb02 (patch)
treeadfb3dde2e6a46f5a9907f7aee66b017c8608a1f /3rdparty/pybind11/tests/pybind11_tests.cpp
parentd9a71083e1a081f89e1aa4c357bc3b828eea6709 (diff)
parent718ee441a0dcf7328692c67d143f2b26b8ebc61c (diff)
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Merge pull request #826 from YosysHQ/gatecat/nexus-lutperm
nexus: Add LUT permutation support
Diffstat (limited to '3rdparty/pybind11/tests/pybind11_tests.cpp')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-12 14:17:53 +0000
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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

import threading

from cryptography.hazmat.bindings.utils import (
    build_ffi_for_binding, load_library_for_binding,
)


class Binding(object):
    """
    CommonCrypto API wrapper.
    """
    _module_prefix = "cryptography.hazmat.bindings.commoncrypto."
    _modules = [
        "cf",
        "common_digest",
        "common_hmac",
        "common_key_derivation",
        "common_cryptor",
        "common_symmetric_key_wrap",
        "secimport",
        "secitem",
        "seckey",
        "seckeychain",
        "sectransform",
    ]

    ffi = build_ffi_for_binding(
        module_prefix=_module_prefix,
        modules=_modules,
        extra_link_args=[
            "-framework", "Security", "-framework", "CoreFoundation"
        ],
    )
    lib = None
    _init_lock = threading.Lock()

    def __init__(self):
        self._ensure_ffi_initialized()

    @classmethod
    def _ensure_ffi_initialized(cls):
        if cls.lib is not None:
            return

        with cls._init_lock:
            if cls.lib is None:
                cls.lib = load_library_for_binding(
                    cls.ffi,
                    module_prefix=cls._module_prefix,
                    modules=cls._modules,
                )