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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERSISTENT_CACHE_SQLITE_VFS_SQLITE_DATABASE_VFS_FILE_SET_H_
#define COMPONENTS_PERSISTENT_CACHE_SQLITE_VFS_SQLITE_DATABASE_VFS_FILE_SET_H_
#include "base/component_export.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "components/persistent_cache/sqlite/vfs/sandboxed_file.h"
namespace persistent_cache {
// Contains `SanboxedFile` representations of the files necessary to the use of
// an `sql::Database`.
class COMPONENT_EXPORT(PERSISTENT_CACHE) SqliteVfsFileSet {
public:
SqliteVfsFileSet(SandboxedFile db_file, SandboxedFile journal_file);
SqliteVfsFileSet(SqliteVfsFileSet& other) = delete;
SqliteVfsFileSet& operator=(const SqliteVfsFileSet& other) = delete;
SqliteVfsFileSet(SqliteVfsFileSet&& other);
SqliteVfsFileSet& operator=(SqliteVfsFileSet&& other);
~SqliteVfsFileSet();
SqliteVfsFileSet Copy() const;
// Returns sandboxed files along with the virtual file paths through which
// `SqliteSandboxedVfsDelegate` will expose them to `sql::Database`.
std::array<std::pair<base::FilePath, SandboxedFile>, 2> GetFiles() const;
// Generates a valid name that can be passed to `sql::database`'s constructor.
base::FilePath GetDbVirtualFilePath() const;
private:
// Copies all fields including (virtual_fs_path_). Private to be used only
// through `Clone()`.
SqliteVfsFileSet(SandboxedFile db_file,
SandboxedFile journal_file,
std::string virtual_fs_path);
base::FilePath GetJournalVirtualFilePath() const;
SandboxedFile db_file_;
SandboxedFile journal_file_;
// SQLite databases use standard naming for their files. Since the vfs might
// register files for many databases at once it needs some way to
// differentiate them. This is guaranteed to be unique because it is based on
// a monotonically increasing integer.
std::string virtual_fs_path_;
};
} // namespace persistent_cache
#endif // COMPONENTS_PERSISTENT_CACHE_SQLITE_VFS_SQLITE_DATABASE_VFS_FILE_SET_H_
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