ladybird/Services/RequestServer/Cache/DiskCache.h
Timothy Flynn 3f61f0f189 RequestServer: Add a time parameter to the clear cache endpoint
This allows removing cache entries last accessed since a provided
timestamp.
2025-11-12 09:06:21 -05:00

55 lines
1.5 KiB
C++

/*
* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
#include <AK/LexicalPath.h>
#include <AK/Optional.h>
#include <AK/StringView.h>
#include <AK/Time.h>
#include <AK/Types.h>
#include <LibDatabase/Database.h>
#include <LibURL/Forward.h>
#include <RequestServer/Cache/CacheEntry.h>
#include <RequestServer/Cache/CacheIndex.h>
namespace RequestServer {
class DiskCache {
public:
static ErrorOr<DiskCache> create();
struct CacheHasOpenEntry { };
Variant<Optional<CacheEntryWriter&>, CacheHasOpenEntry> create_entry(Request&);
Variant<Optional<CacheEntryReader&>, CacheHasOpenEntry> open_entry(Request&);
Requests::CacheSizes estimate_cache_size_accessed_since(UnixDateTime since) const;
void remove_entries_accessed_since(UnixDateTime since);
LexicalPath const& cache_directory() { return m_cache_directory; }
void cache_entry_closed(Badge<CacheEntry>, CacheEntry const&);
private:
DiskCache(NonnullRefPtr<Database::Database>, LexicalPath cache_directory, CacheIndex);
enum class CheckReaderEntries {
No,
Yes,
};
bool check_if_cache_has_open_entry(Request&, u64 cache_key, CheckReaderEntries);
NonnullRefPtr<Database::Database> m_database;
HashMap<u64, Vector<NonnullOwnPtr<CacheEntry>, 1>> m_open_cache_entries;
HashMap<u64, Vector<WeakPtr<Request>, 1>> m_requests_waiting_completion;
LexicalPath m_cache_directory;
CacheIndex m_index;
};
}