fsp: Migrate remaining interfaces to cmif serialization

src/core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.cpp

@@ -1,34 +1,32 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
 IMultiCommitManager::IMultiCommitManager(Core::System& system_)
     : ServiceFramework{system_, "IMultiCommitManager"} {
     static const FunctionInfo functions[] = {
-        {1, &IMultiCommitManager::Add, "Add"},
-        {2, &IMultiCommitManager::Commit, "Commit"},
+        {1, D<&IMultiCommitManager::Add>, "Add"},
+        {2, D<&IMultiCommitManager::Commit>, "Commit"},
     };
     RegisterHandlers(functions);
 }
 
 IMultiCommitManager::~IMultiCommitManager() = default;
 
-void IMultiCommitManager::Add(HLERequestContext& ctx) {
+Result IMultiCommitManager::Add() {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
 }
 
-void IMultiCommitManager::Commit(HLERequestContext& ctx) {
+Result IMultiCommitManager::Commit() {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
 }
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.h

@@ -14,8 +14,8 @@ public:
     ~IMultiCommitManager() override;
 
 private:
-    void Add(HLERequestContext& ctx);
-    void Commit(HLERequestContext& ctx);
+    Result Add();
+    Result Commit();
 
     FileSys::VirtualFile backend;
 };

src/core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.cpp

@@ -3,19 +3,19 @@
 
 #include "common/hex_util.h"
 #include "core/file_sys/savedata_factory.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h"
 #include "core/hle/service/filesystem/save_data_controller.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
 ISaveDataInfoReader::ISaveDataInfoReader(Core::System& system_,
                                          std::shared_ptr<SaveDataController> save_data_controller_,
                                          FileSys::SaveDataSpaceId space)
-    : ServiceFramework{system_, "ISaveDataInfoReader"},
-      save_data_controller{save_data_controller_} {
+    : ServiceFramework{system_, "ISaveDataInfoReader"}, save_data_controller{
+                                                            save_data_controller_} {
     static const FunctionInfo functions[] = {
-        {0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"},
+        {0, D<&ISaveDataInfoReader::ReadSaveDataInfo>, "ReadSaveDataInfo"},
     };
     RegisterHandlers(functions);
 
@@ -36,11 +36,12 @@ static u64 stoull_be(std::string_view str) {
     return Common::swap64(out);
 }
 
-void ISaveDataInfoReader::ReadSaveDataInfo(HLERequestContext& ctx) {
+Result ISaveDataInfoReader::ReadSaveDataInfo(
+    Out<u64> out_count, OutArray<SaveDataInfo, BufferAttr_HipcMapAlias> out_entries) {
     LOG_DEBUG(Service_FS, "called");
 
     // Calculate how many entries we can fit in the output buffer
-    const u64 count_entries = ctx.GetWriteBufferNumElements<SaveDataInfo>();
+    const u64 count_entries = out_entries.size();
 
     // Cap at total number of entries.
     const u64 actual_entries = std::min(count_entries, info.size() - next_entry_index);
@@ -53,11 +54,10 @@ void ISaveDataInfoReader::ReadSaveDataInfo(HLERequestContext& ctx) {
     next_entry_index += actual_entries;
 
     // Write the data to memory
-    ctx.WriteBuffer(begin, range_size);
+    std::memcpy(out_entries.data(), begin, range_size);
+    *out_count = actual_entries;
 
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push<u64>(actual_entries);
+    R_SUCCEED();
 }
 
 void ISaveDataInfoReader::FindAllSaves(FileSys::SaveDataSpaceId space) {

src/core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h

@@ -5,6 +5,7 @@
 
 #include <vector>
 #include "common/common_types.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/service.h"
 
 namespace Service::FileSystem {
@@ -18,13 +19,6 @@ public:
                                  FileSys::SaveDataSpaceId space);
     ~ISaveDataInfoReader() override;
 
-    void ReadSaveDataInfo(HLERequestContext& ctx);
-
-private:
-    void FindAllSaves(FileSys::SaveDataSpaceId space);
-    void FindNormalSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type);
-    void FindTemporaryStorageSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type);
-
     struct SaveDataInfo {
         u64_le save_id_unknown;
         FileSys::SaveDataSpaceId space;
@@ -40,6 +34,14 @@ private:
     };
     static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size.");
 
+    Result ReadSaveDataInfo(Out<u64> out_count,
+                            OutArray<SaveDataInfo, BufferAttr_HipcMapAlias> out_entries);
+
+private:
+    void FindAllSaves(FileSys::SaveDataSpaceId space);
+    void FindNormalSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type);
+    void FindTemporaryStorageSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type);
+
     std::shared_ptr<SaveDataController> save_data_controller;
     std::vector<SaveDataInfo> info;
     u64 next_entry_index = 0;

src/core/hle/service/filesystem/fsp/fs_i_storage.cpp

@@ -2,61 +2,44 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/file_sys/errors.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_storage.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
 IStorage::IStorage(Core::System& system_, FileSys::VirtualFile backend_)
     : ServiceFramework{system_, "IStorage"}, backend(std::move(backend_)) {
     static const FunctionInfo functions[] = {
-        {0, &IStorage::Read, "Read"},
+        {0, D<&IStorage::Read>, "Read"},
         {1, nullptr, "Write"},
         {2, nullptr, "Flush"},
         {3, nullptr, "SetSize"},
-        {4, &IStorage::GetSize, "GetSize"},
+        {4, D<&IStorage::GetSize>, "GetSize"},
         {5, nullptr, "OperateRange"},
     };
     RegisterHandlers(functions);
 }
 
-void IStorage::Read(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const s64 offset = rp.Pop<s64>();
-    const s64 length = rp.Pop<s64>();
-
+Result IStorage::Read(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_bytes,
+    s64 offset, s64 length) {
     LOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
 
-    // Error checking
-    if (length < 0) {
-        LOG_ERROR(Service_FS, "Length is less than 0, length={}", length);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidSize);
-        return;
-    }
-    if (offset < 0) {
-        LOG_ERROR(Service_FS, "Offset is less than 0, offset={}", offset);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidOffset);
-        return;
-    }
+    R_UNLESS(length >= 0, FileSys::ResultInvalidSize);
+    R_UNLESS(offset >= 0, FileSys::ResultInvalidOffset);
 
     // Read the data from the Storage backend
-    std::vector<u8> output = backend->ReadBytes(length, offset);
-    // Write the data to memory
-    ctx.WriteBuffer(output);
+    backend->Read(out_bytes.data(), length, offset);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
 }
 
-void IStorage::GetSize(HLERequestContext& ctx) {
-    const u64 size = backend->GetSize();
-    LOG_DEBUG(Service_FS, "called, size={}", size);
+Result IStorage::GetSize(Out<u64> out_size) {
+    *out_size = backend->GetSize();
+
+    LOG_DEBUG(Service_FS, "called, size={}", *out_size);
 
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push<u64>(size);
+    R_SUCCEED();
 }
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_storage.h

@@ -4,6 +4,7 @@
 #pragma once
 
 #include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/service.h"
 
@@ -16,8 +17,10 @@ public:
 private:
     FileSys::VirtualFile backend;
 
-    void Read(HLERequestContext& ctx);
-    void GetSize(HLERequestContext& ctx);
+    Result Read(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_bytes,
+        s64 offset, s64 length);
+    Result GetSize(Out<u64> out_size);
 };
 
 } // namespace Service::FileSystem