mirror of
https://github.com/RGBCube/serenity
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5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
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* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
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* Copyright (c) 2021, Mahmoud Mandour <ma.mandourr@gmail.com>
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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/ByteString.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/RefPtr.h>
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#include <LibSQL/Forward.h>
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#include <LibSQL/Heap.h>
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#include <LibSQL/Meta.h>
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#include <LibSQL/Result.h>
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#include <LibSQL/Serializer.h>
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namespace SQL {
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/**
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* A Database object logically connects a Heap with the SQL data we want
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* to store in it. It has BTree pointers for B-Trees holding the definitions
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* of tables, columns, indexes, and other SQL objects.
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*/
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class Database : public RefCounted<Database> {
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public:
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static ErrorOr<NonnullRefPtr<Database>> create(ByteString);
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~Database();
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ResultOr<void> open();
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bool is_open() const { return m_open; }
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ErrorOr<void> commit();
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ErrorOr<size_t> file_size_in_bytes() const { return m_heap->file_size_in_bytes(); }
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ResultOr<void> add_schema(SchemaDef const&);
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static Key get_schema_key(ByteString const&);
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ResultOr<NonnullRefPtr<SchemaDef>> get_schema(ByteString const&);
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ResultOr<void> add_table(TableDef& table);
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static Key get_table_key(ByteString const&, ByteString const&);
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ResultOr<NonnullRefPtr<TableDef>> get_table(ByteString const&, ByteString const&);
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ErrorOr<Vector<Row>> select_all(TableDef&);
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ErrorOr<Vector<Row>> match(TableDef&, Key const&);
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ErrorOr<void> insert(Row&);
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ErrorOr<void> remove(Row&);
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ErrorOr<void> update(Row&);
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private:
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explicit Database(NonnullRefPtr<Heap>);
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bool m_open { false };
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NonnullRefPtr<Heap> m_heap;
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Serializer m_serializer;
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RefPtr<BTree> m_schemas;
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RefPtr<BTree> m_tables;
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RefPtr<BTree> m_table_columns;
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HashMap<u32, NonnullRefPtr<SchemaDef>> m_schema_cache;
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HashMap<u32, NonnullRefPtr<TableDef>> m_table_cache;
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};
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}
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