e2e1984e60
A few headers like BLI_math_constants.h and BLI_utildefines.h keep working for C code, for remaining makesdna and userdef defaults code in C. Pull Request: https://projects.blender.org/blender/blender/pulls/134406
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bli
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*
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* Functions for generating and handling "Session UIDs".
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*
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* Note that these are not true universally-unique identifiers, but only unique during the current
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* Blender session.
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*
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* For true UUIDs, see `BLI_uuid.h`.
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*/
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#include "DNA_session_uid_types.h"
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#include "BLI_hash.hh"
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/** Generate new UID which is unique throughout the Blender session. */
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SessionUID BLI_session_uid_generate(void);
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/** Check whether the UID is properly generated. */
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bool BLI_session_uid_is_generated(const SessionUID *uid);
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/** Check whether two UIDs are identical. */
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bool BLI_session_uid_is_equal(const SessionUID *lhs, const SessionUID *rhs);
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uint64_t BLI_session_uid_hash_uint64(const SessionUID *uid);
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/* Utility functions to make it possible to create set/map with UID as a key. */
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uint BLI_session_uid_ghash_hash(const void *uid_v);
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bool BLI_session_uid_ghash_compare(const void *lhs_v, const void *rhs_v);
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namespace blender {
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inline bool operator==(const SessionUID &lhs, const SessionUID &rhs)
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{
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return BLI_session_uid_is_equal(&lhs, &rhs);
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}
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template<typename T> struct DefaultHash;
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template<> struct DefaultHash<SessionUID> {
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uint64_t operator()(const SessionUID &value) const
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{
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return BLI_session_uid_hash_uint64(&value);
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}
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};
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} // namespace blender
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