77 lines · c
1//===-- CFBasicHash.h -------------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_LANGUAGE_OBJC_CFBASICHASH_H10#define LLDB_SOURCE_PLUGINS_LANGUAGE_OBJC_CFBASICHASH_H11 12#include "lldb/Target/Process.h"13#include "lldb/Target/Target.h"14 15namespace lldb_private {16 17class CFBasicHash {18public:19 enum class HashType { set = 0, dict };20 21 CFBasicHash() = default;22 ~CFBasicHash() = default;23 24 bool Update(lldb::addr_t addr, ExecutionContextRef exe_ctx_rf);25 26 bool IsValid() const;27 28 bool IsMutable() const { return m_mutable; };29 bool IsMultiVariant() const { return m_multi; }30 HashType GetType() const { return m_type; }31 32 size_t GetCount() const;33 lldb::addr_t GetKeyPointer() const;34 lldb::addr_t GetValuePointer() const;35 36private:37 template <typename T> struct __CFBasicHash {38 struct RuntimeBase {39 T cfisa;40 T cfinfoa;41 } base;42 43 struct Bits {44 uint16_t __reserved0;45 uint16_t __reserved1 : 2;46 uint16_t keys_offset : 1;47 uint16_t counts_offset : 2;48 uint16_t counts_width : 2;49 uint16_t __reserved2 : 9;50 uint32_t used_buckets; // number of used buckets51 uint64_t deleted : 16; // number of elements deleted52 uint64_t num_buckets_idx : 8; // index to number of buckets53 uint64_t __reserved3 : 40;54 uint64_t __reserved4;55 } bits;56 57 T pointers[3];58 };59 template <typename T> bool UpdateFor(std::unique_ptr<__CFBasicHash<T>> &m_ht);60 61 size_t GetPointerCount() const;62 63 uint32_t m_ptr_size = UINT32_MAX;64 lldb::ByteOrder m_byte_order = lldb::eByteOrderInvalid;65 Address m_address = LLDB_INVALID_ADDRESS;66 std::unique_ptr<__CFBasicHash<uint32_t>> m_ht_32 = nullptr;67 std::unique_ptr<__CFBasicHash<uint64_t>> m_ht_64 = nullptr;68 ExecutionContextRef m_exe_ctx_ref;69 bool m_mutable = true;70 bool m_multi = false;71 HashType m_type = HashType::set;72};73 74} // namespace lldb_private75 76#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_OBJC_CFBASICHASH_H77