Atmosphere/libraries/libstratosphere/source/fs/impl/fs_library.cpp

116 lines
5 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* 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/>.
*/
#include <stratosphere.hpp>
#include <stratosphere/fssrv/fssrv_interface_adapters.hpp>
#include "fs_library.hpp"
#include "fs_file_system_service_object_adapter.hpp"
#include "../../fssrv/impl/fssrv_allocator_for_service_framework.hpp"
namespace ams::fs::impl {
#if !defined(ATMOSPHERE_OS_HORIZON)
namespace {
constexpr size_t SystemHeapSize = 8_MB;
alignas(os::MemoryPageSize) constinit u8 g_system_heap[SystemHeapSize];
ALWAYS_INLINE auto &GetSystemHeapAllocator() {
AMS_FUNCTION_LOCAL_STATIC(mem::StandardAllocator, s_system_heap_allocator, g_system_heap, sizeof(g_system_heap));
return s_system_heap_allocator;
}
constinit util::optional<fssrv::MemoryResourceFromStandardAllocator> g_system_heap_memory_resource;
void *AllocateForSystem(size_t size) { return g_system_heap_memory_resource->Allocate(size); }
void DeallocateForSystem(void *p, size_t size) { return g_system_heap_memory_resource->Deallocate(p, size); }
[[maybe_unused]] constexpr size_t BufferPoolSize = 6_MB;
[[maybe_unused]] constexpr size_t DeviceBufferSize = 8_MB;
[[maybe_unused]] constexpr size_t BufferManagerHeapSize = 14_MB;
static_assert(util::IsAligned(BufferManagerHeapSize, os::MemoryBlockUnitSize));
//alignas(os::MemoryPageSize) u8 g_buffer_pool[BufferPoolSize];
//alignas(os::MemoryPageSize) u8 g_device_buffer[DeviceBufferSize];
//alignas(os::MemoryPageSize) u8 g_buffer_manager_heap[BufferManagerHeapSize];
//
//alignas(os::MemoryPageSize) u8 g_buffer_manager_work_buffer[64_KB];
/* TODO: Other work buffers. */
/* TODO: Implement pooled threads. */
// constexpr int PooledThreadCount = 12;
// constexpr size_t PooledThreadStackSize = 32_KB;
// fssystem::PooledThread g_pooled_threads[PooledThreadCount];
/* FileSystem creators. */
constinit util::optional<fssrv::fscreator::LocalFileSystemCreator> g_local_fs_creator;
constinit util::optional<fssrv::fscreator::SubDirectoryFileSystemCreator> g_subdir_fs_creator;
constinit fssrv::fscreator::FileSystemCreatorInterfaces g_fs_creator_interfaces = {};
Result InitializeFileSystemLibraryImpl() {
/* Set system allocator. */
fssystem::InitializeAllocator(::ams::fs::impl::Allocate, ::ams::fs::impl::Deallocate);
fssystem::InitializeAllocatorForSystem(::ams::fs::impl::AllocateForSystem, ::ams::fs::impl::DeallocateForSystem);
/* TODO: Many things. */
g_system_heap_memory_resource.emplace(std::addressof(GetSystemHeapAllocator()));
/* Setup fscreators/interfaces. */
g_local_fs_creator.emplace(true);
g_subdir_fs_creator.emplace();
g_fs_creator_interfaces.local_fs_creator = std::addressof(*g_local_fs_creator);
g_fs_creator_interfaces.subdir_fs_creator = std::addressof(*g_subdir_fs_creator);
/* Initialize fssrv. */
const fssrv::FileSystemProxyConfiguration config = {
.m_fs_creator_interfaces = std::addressof(g_fs_creator_interfaces),
.m_base_storage_service_impl = nullptr /* TODO */,
.m_base_file_system_service_impl = nullptr /* TODO */,
.m_nca_file_system_service_impl = nullptr /* TODO */,
.m_save_data_file_system_service_impl = nullptr /* TODO */,
.m_access_failure_management_service_impl = nullptr /* TODO */,
.m_time_service_impl = nullptr /* TODO */,
.m_status_report_service_impl = nullptr /* TODO */,
.m_program_registry_service_impl = nullptr /* TODO */,
.m_access_log_service_impl = nullptr /* TODO */,
.m_debug_configuration_service_impl = nullptr /* TODO */,
};
fssrv::InitializeForFileSystemProxy(config);
R_SUCCEED();
}
class FileSystemLibraryInitializer {
public:
FileSystemLibraryInitializer() {
R_ABORT_UNLESS(InitializeFileSystemLibraryImpl());
}
};
}
#endif
void InitializeFileSystemLibrary() {
#if !defined(ATMOSPHERE_OS_HORIZON)
AMS_FUNCTION_LOCAL_STATIC(FileSystemLibraryInitializer, s_library_initializer);
AMS_UNUSED(s_library_initializer);
#endif
}
}