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Atmosphere/stratosphere/ncm/source/ncm_fs.hpp
2019-07-25 22:53:32 +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 <sys/dirent.h>
#include "ncm_types.hpp"
namespace sts::ncm {
Result HasFile(bool* out, const char* path);
Result HasDirectory(bool* out, const char* path);
Result CheckContentStorageDirectoriesExist(const char* root_path);
Result EnsureContentAndPlaceHolderRoot(const char* root_path);
Result EnsureDirectoryRecursively(const char* dir_path);
Result EnsureRecursively(const char* path, bool is_dir);
/* Create all parent directories for a file path */
Result EnsureParentDirectoryRecursively(const char* path);
Result GetGameCardHandle(FsGameCardHandle* out_handle);
MountName CreateUniqueMountName();
Result MountSystemSaveData(const char* mount_point, FsSaveDataSpaceId space_id, u64 save_id);
Result MountContentStorage(const char* mount_point, FsContentStorageId id);
Result MountGameCardPartition(const char* mount_point, const FsGameCardHandle handle, FsGameCardPartiton partition);
Result Unmount(const char* mount_point);
Result ConvertToFsCommonPath(char* out_common_path, size_t len, const char* path);
Result GetSaveDataFlags(u32* out_flags, u64 save_id);
Result SetSaveDataFlags(u64 save_id, FsSaveDataSpaceId space_id, u32 flags);
template<typename F>
Result TraverseDirectory(const char* root_path, int max_level, F f) {
bool should_continue = false;
return TraverseDirectory(&should_continue, root_path, max_level, f);
}
template<typename F>
Result TraverseDirectory(bool* out_should_continue, const char* root_path, int max_level, F f) {
DIR *dir;
struct dirent* dir_entry = nullptr;
if (max_level < 1) {
return ResultSuccess;
}
bool retry_dir_read = true;
while (retry_dir_read) {
retry_dir_read = false;
if ((dir = opendir(root_path)) == nullptr) {
return fsdevGetLastResult();
}
ON_SCOPE_EXIT { closedir(dir); };
while ((dir_entry = readdir(dir)) != nullptr) {
if (strcmp(dir_entry->d_name, ".") == 0 || strcmp(dir_entry->d_name, "..") == 0) {
continue;
}
char current_path[FS_MAX_PATH];
if (snprintf(current_path, FS_MAX_PATH-1, "%s/%s", root_path, dir_entry->d_name) < 0) {
std::abort();
}
bool should_continue = true;
bool should_retry_dir_read = false;
R_TRY(f(&should_continue, &should_retry_dir_read, current_path, dir_entry));
/* If the provided function wishes to terminate immediately, we should respect it. */
if (!should_continue) {
*out_should_continue = false;
return ResultSuccess;
}
if (should_retry_dir_read) {
retry_dir_read = true;
break;
}
if (dir_entry->d_type == DT_DIR) {
R_TRY(TraverseDirectory(&should_continue, current_path, max_level-1, f));
if (!should_continue) {
*out_should_continue = false;
return ResultSuccess;
}
}
}
}
return ResultSuccess;
};
}