diff options
Diffstat (limited to 'src/core/hle/service/am/storage_accessor.cpp')
-rw-r--r-- | src/core/hle/service/am/storage_accessor.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/core/hle/service/am/storage_accessor.cpp b/src/core/hle/service/am/storage_accessor.cpp new file mode 100644 index 000000000..7d8c82de3 --- /dev/null +++ b/src/core/hle/service/am/storage_accessor.cpp @@ -0,0 +1,82 @@ +// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "core/hle/service/am/am_results.h" +#include "core/hle/service/am/storage_accessor.h" +#include "core/hle/service/ipc_helpers.h" + +namespace Service::AM { + +IStorageAccessor::IStorageAccessor(Core::System& system_, IStorage& backing_) + : ServiceFramework{system_, "IStorageAccessor"}, backing{backing_} { + // clang-format off + static const FunctionInfo functions[] = { + {0, &IStorageAccessor::GetSize, "GetSize"}, + {10, &IStorageAccessor::Write, "Write"}, + {11, &IStorageAccessor::Read, "Read"}, + }; + // clang-format on + + RegisterHandlers(functions); +} + +IStorageAccessor::~IStorageAccessor() = default; + +void IStorageAccessor::GetSize(HLERequestContext& ctx) { + LOG_DEBUG(Service_AM, "called"); + + IPC::ResponseBuilder rb{ctx, 4}; + + rb.Push(ResultSuccess); + rb.Push(static_cast<u64>(backing.GetSize())); +} + +void IStorageAccessor::Write(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + + const u64 offset{rp.Pop<u64>()}; + const auto data{ctx.ReadBuffer()}; + const std::size_t size{std::min<u64>(data.size(), backing.GetSize() - offset)}; + + LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size); + + if (offset > backing.GetSize()) { + LOG_ERROR(Service_AM, + "offset is out of bounds, backing_buffer_sz={}, data_size={}, offset={}", + backing.GetSize(), size, offset); + + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(AM::ResultInvalidOffset); + return; + } + + std::memcpy(backing.GetData().data() + offset, data.data(), size); + + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(ResultSuccess); +} + +void IStorageAccessor::Read(HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + + const u64 offset{rp.Pop<u64>()}; + const std::size_t size{std::min<u64>(ctx.GetWriteBufferSize(), backing.GetSize() - offset)}; + + LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size); + + if (offset > backing.GetSize()) { + LOG_ERROR(Service_AM, "offset is out of bounds, backing_buffer_sz={}, size={}, offset={}", + backing.GetSize(), size, offset); + + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(AM::ResultInvalidOffset); + return; + } + + ctx.WriteBuffer(backing.GetData().data() + offset, size); + + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(ResultSuccess); +} + +} // namespace Service::AM |