Atmosphere/stratosphere/ncm/source/impl/ncm_placeholder_accessor.hpp
2019-07-27 11:59:56 +10:00

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/*
* Copyright (c) 2019 Adubbz
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "../ncm_types.hpp"
#include "../ncm_path_utils.hpp"
namespace sts::ncm::impl {
class PlaceHolderAccessor {
public:
class CacheEntry {
public:
PlaceHolderId id;
FILE* handle;
u64 counter;
};
public:
static constexpr size_t MaxCaches = 0x2;
CacheEntry caches[MaxCaches];
char* root_path;
u64 cur_counter;
HosMutex cache_mutex;
MakePlaceHolderPathFunc make_placeholder_path_func;
bool delay_flush;
PlaceHolderAccessor() : cur_counter(0), delay_flush(false) {
for (size_t i = 0; i < MaxCaches; i++) {
caches[i].id = InvalidUuid;
}
}
inline void GetPlaceHolderRootPath(char* out_placeholder_root) {
path::GetPlaceHolderRootPath(out_placeholder_root, this->root_path);
}
inline void GetPlaceHolderPath(char* out_placeholder_path, PlaceHolderId placeholder_id) {
char placeholder_root_path[FS_MAX_PATH] = {0};
this->GetPlaceHolderRootPath(placeholder_root_path);
this->make_placeholder_path_func(out_placeholder_path, placeholder_id, placeholder_root_path);
}
unsigned int GetDirectoryDepth();
void GetPlaceHolderPathUncached(char* out_placeholder_path, PlaceHolderId placeholder_id);
Result Create(PlaceHolderId placeholder_id, size_t size);
Result Delete(PlaceHolderId placeholder_id);
Result Open(FILE** out_handle, PlaceHolderId placeholder_id);
Result SetSize(PlaceHolderId placeholder_id, size_t size);
Result GetSize(bool* found_in_cache, size_t* out_size, PlaceHolderId placeholder_id);
Result EnsureRecursively(PlaceHolderId placeholder_id);
CacheEntry *FindInCache(PlaceHolderId placeholder_id);
bool LoadFromCache(FILE** out_handle, PlaceHolderId placeholder_id);
void StoreToCache(FILE* handle, PlaceHolderId placeholder_id);
void ClearAllCaches();
};
}