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Everywhere: Move global Kernel pattern code to Kernel/Library directory
This has KString, KBuffer, DoubleBuffer, KBufferBuilder, IOWindow, UserOrKernelBuffer and ScopedCritical classes being moved to the Kernel/Library subdirectory. Also, move the panic and assertions handling code to that directory.
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193 changed files with 238 additions and 240 deletions
131
Kernel/Library/KString.h
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131
Kernel/Library/KString.h
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/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Format.h>
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#include <AK/OwnPtr.h>
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namespace Kernel {
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class KString {
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AK_MAKE_NONCOPYABLE(KString);
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AK_MAKE_NONMOVABLE(KString);
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public:
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[[nodiscard]] static ErrorOr<NonnullOwnPtr<KString>> try_create_uninitialized(size_t, char*&);
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[[nodiscard]] static NonnullOwnPtr<KString> must_create_uninitialized(size_t, char*&);
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[[nodiscard]] static ErrorOr<NonnullOwnPtr<KString>> try_create(StringView);
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[[nodiscard]] static NonnullOwnPtr<KString> must_create(StringView);
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[[nodiscard]] static ErrorOr<NonnullOwnPtr<KString>> vformatted(StringView fmtstr, AK::TypeErasedFormatParams&);
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template<typename... Parameters>
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[[nodiscard]] static ErrorOr<NonnullOwnPtr<KString>> formatted(CheckedFormatString<Parameters...>&& fmtstr, Parameters const&... parameters)
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{
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AK::VariadicFormatParams<AK::AllowDebugOnlyFormatters::No, Parameters...> variadic_format_parameters { parameters... };
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return vformatted(fmtstr.view(), variadic_format_parameters);
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}
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[[nodiscard]] static ErrorOr<NonnullOwnPtr<KString>> number(Arithmetic auto value)
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{
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return formatted("{}", value);
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}
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void operator delete(void*);
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ErrorOr<NonnullOwnPtr<KString>> try_clone() const;
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[[nodiscard]] bool is_empty() const { return m_length == 0; }
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[[nodiscard]] size_t length() const { return m_length; }
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[[nodiscard]] char const* characters() const { return m_characters; }
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[[nodiscard]] StringView view() const { return { characters(), length() }; }
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[[nodiscard]] ReadonlyBytes bytes() const { return { characters(), length() }; }
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private:
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explicit KString(size_t length)
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: m_length(length)
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{
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}
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size_t m_length { 0 };
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char m_characters[0];
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};
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}
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namespace AK {
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template<>
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struct Formatter<Kernel::KString> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Kernel::KString const& value)
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{
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return Formatter<StringView>::format(builder, value.view());
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}
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};
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template<>
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struct Formatter<OwnPtr<Kernel::KString>> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, OwnPtr<Kernel::KString> const& value)
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{
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if (value)
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return Formatter<StringView>::format(builder, value->view());
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return Formatter<StringView>::format(builder, "[out of memory]"sv);
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}
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};
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template<>
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struct Formatter<NonnullOwnPtr<Kernel::KString>> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, NonnullOwnPtr<Kernel::KString> const& value)
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{
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return Formatter<StringView>::format(builder, value->view());
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}
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};
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template<>
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struct Traits<NonnullOwnPtr<Kernel::KString>> : public GenericTraits<NonnullOwnPtr<Kernel::KString>> {
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using PeekType = Kernel::KString*;
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using ConstPeekType = Kernel::KString const*;
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static unsigned hash(NonnullOwnPtr<Kernel::KString> const& p) { return string_hash(p->characters(), p->length()); }
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static bool equals(NonnullOwnPtr<Kernel::KString> const& a, NonnullOwnPtr<Kernel::KString> const& b) { return a->view() == b->view(); }
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static bool equals(StringView a, NonnullOwnPtr<Kernel::KString> const& b) { return a == b->view(); }
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};
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template<>
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struct Traits<OwnPtr<Kernel::KString>> : public GenericTraits<OwnPtr<Kernel::KString>> {
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using PeekType = Kernel::KString*;
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using ConstPeekType = Kernel::KString const*;
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static unsigned hash(OwnPtr<Kernel::KString> const& p)
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{
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if (!p)
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return ptr_hash(nullptr);
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return string_hash(p->characters(), p->length());
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}
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static bool equals(OwnPtr<Kernel::KString> const& a, OwnPtr<Kernel::KString> const& b)
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{
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if (!a || !b)
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return a.ptr() == b.ptr();
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if (a == b)
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return true;
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return a->view() == b->view();
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}
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static bool equals(StringView a, OwnPtr<Kernel::KString> const& b)
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{
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if (!b)
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return a.is_null();
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return a == b->view();
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}
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};
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namespace Detail {
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template<>
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inline constexpr bool IsHashCompatible<StringView, NonnullOwnPtr<Kernel::KString>> = true;
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template<>
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inline constexpr bool IsHashCompatible<StringView, OwnPtr<Kernel::KString>> = true;
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}
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}
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