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https://github.com/citra-emu/citra.git
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FS: transform File to ServiceFramework
This commit is contained in:
wwylele
parent
cef6b15de4
commit
a79a8d17fa
@ -27,6 +27,7 @@
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#include "core/file_sys/errors.h"
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#include "core/file_sys/file_backend.h"
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#include "core/hle/ipc.h"
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#include "core/hle/ipc_helpers.h"
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#include "core/hle/kernel/client_port.h"
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#include "core/hle/kernel/client_session.h"
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#include "core/hle/kernel/handle_table.h"
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@ -84,122 +85,132 @@ enum class DirectoryCommand : u32 {
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};
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File::File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path)
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: path(path), priority(0), backend(std::move(backend)) {}
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: path(path), priority(0), backend(std::move(backend)), ServiceFramework("", 1) {
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static const FunctionInfo functions[] = {
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{0x080200C2, &File::Read, "Read"},
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{0x08030102, &File::Write, "Write"},
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{0x08040000, &File::GetSize, "GetSize"},
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{0x08050080, &File::SetSize, "SetSize"},
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{0x08080000, &File::Close, "Close"},
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{0x08090000, &File::Flush, "Flush"},
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{0x080A0040, &File::SetPriority, "SetPriority"},
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{0x080B0000, &File::GetPriority, "GetPriority"},
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{0x080C0000, &File::OpenLinkFile, "OpenLinkFile"},
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};
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RegisterHandlers(functions);
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}
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File::~File() {}
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void File::Read(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x0802, 3, 2);
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u64 offset = rp.Pop<u64>();
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u32 length = rp.Pop<u32>();
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auto& buffer = rp.PopMappedBuffer();
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LOG_TRACE(Service_FS, "Read %s: offset=0x%" PRIx64 " length=0x%08X", GetName().c_str(), offset,
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length);
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void File::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) {
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if (offset + length > backend->GetSize()) {
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LOG_ERROR(Service_FS, "Reading from out of bounds offset=0x%" PRIx64
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" length=0x%08X file_size=0x%" PRIx64,
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offset, length, backend->GetSize());
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}
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
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std::vector<u8> data(length);
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ResultVal<size_t> read = backend->Read(offset, data.size(), data.data());
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if (read.Failed()) {
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rb.Push(read.Code());
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rb.Push<u32>(0);
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} else {
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buffer.Write(data.data(), 0, *read);
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rb.Push(RESULT_SUCCESS);
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rb.Push<u32>(*read);
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}
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rb.PushMappedBuffer(buffer);
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}
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void File::Write(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x0803, 3, 2);
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u64 offset = rp.Pop<u64>();
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u32 length = rp.Pop<u32>();
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u32 flush = rp.Pop<u32>();
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auto& buffer = rp.PopMappedBuffer();
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LOG_TRACE(Service_FS, "Write %s: offset=0x%llx length=%d, flush=0x%x", GetName().c_str(),
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offset, length, flush);
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
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std::vector<u8> data(length);
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buffer.Read(data.data(), 0, data.size());
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ResultVal<size_t> written = backend->Write(offset, data.size(), flush != 0, data.data());
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if (written.Failed()) {
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rb.Push(written.Code());
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rb.Push<u32>(0);
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} else {
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rb.Push(RESULT_SUCCESS);
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rb.Push<u32>(*written);
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}
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rb.PushMappedBuffer(buffer);
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}
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void File::GetSize(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x0804, 0, 0);
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IPC::RequestBuilder rb = rp.MakeBuilder(3, 0);
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rb.Push(RESULT_SUCCESS);
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rb.Push(backend->GetSize());
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}
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void File::SetSize(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x0805, 2, 0);
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backend->SetSize(rp.Pop<u64>());
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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}
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void File::Close(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x0808, 0, 0);
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backend->Close();
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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}
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void File::Flush(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x0809, 0, 0);
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backend->Flush();
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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}
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void File::SetPriority(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x080A, 1, 0);
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priority = rp.Pop<u32>();
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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}
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void File::GetPriority(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x080B, 0, 0);
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
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rb.Push(RESULT_SUCCESS);
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rb.Push(priority);
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}
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void File::OpenLinkFile(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service_FS, "(STUBBED) File command OpenLinkFile %s", GetName().c_str());
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using Kernel::ClientSession;
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using Kernel::ServerSession;
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using Kernel::SharedPtr;
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IPC::RequestParser rp(ctx, 0x080C, 0, 0);
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
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auto sessions = ServerSession::CreateSessionPair(GetName());
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ClientConnected(std::get<SharedPtr<ServerSession>>(sessions));
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u32* cmd_buff = Kernel::GetCommandBuffer();
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FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
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switch (cmd) {
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// Read from file...
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case FileCommand::Read: {
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u64 offset = cmd_buff[1] | ((u64)cmd_buff[2]) << 32;
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u32 length = cmd_buff[3];
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u32 address = cmd_buff[5];
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LOG_TRACE(Service_FS, "Read %s: offset=0x%llx length=%d address=0x%x", GetName().c_str(),
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offset, length, address);
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if (offset + length > backend->GetSize()) {
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LOG_ERROR(Service_FS, "Reading from out of bounds offset=0x%" PRIx64
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" length=0x%08X file_size=0x%" PRIx64,
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offset, length, backend->GetSize());
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}
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std::vector<u8> data(length);
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ResultVal<size_t> read = backend->Read(offset, data.size(), data.data());
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if (read.Failed()) {
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cmd_buff[1] = read.Code().raw;
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return;
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}
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Memory::WriteBlock(address, data.data(), *read);
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cmd_buff[2] = static_cast<u32>(*read);
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break;
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}
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// Write to file...
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case FileCommand::Write: {
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u64 offset = cmd_buff[1] | ((u64)cmd_buff[2]) << 32;
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u32 length = cmd_buff[3];
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u32 flush = cmd_buff[4];
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u32 address = cmd_buff[6];
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LOG_TRACE(Service_FS, "Write %s: offset=0x%llx length=%d address=0x%x, flush=0x%x",
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GetName().c_str(), offset, length, address, flush);
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std::vector<u8> data(length);
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Memory::ReadBlock(address, data.data(), data.size());
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ResultVal<size_t> written = backend->Write(offset, data.size(), flush != 0, data.data());
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if (written.Failed()) {
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cmd_buff[1] = written.Code().raw;
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return;
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}
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cmd_buff[2] = static_cast<u32>(*written);
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break;
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}
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case FileCommand::GetSize: {
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LOG_TRACE(Service_FS, "GetSize %s", GetName().c_str());
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u64 size = backend->GetSize();
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cmd_buff[2] = (u32)size;
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cmd_buff[3] = size >> 32;
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break;
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}
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case FileCommand::SetSize: {
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u64 size = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
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LOG_TRACE(Service_FS, "SetSize %s size=%llu", GetName().c_str(), size);
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backend->SetSize(size);
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break;
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}
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case FileCommand::Close: {
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LOG_TRACE(Service_FS, "Close %s", GetName().c_str());
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backend->Close();
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break;
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}
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case FileCommand::Flush: {
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LOG_TRACE(Service_FS, "Flush");
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backend->Flush();
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break;
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}
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case FileCommand::OpenLinkFile: {
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LOG_WARNING(Service_FS, "(STUBBED) File command OpenLinkFile %s", GetName().c_str());
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auto sessions = ServerSession::CreateSessionPair(GetName());
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ClientConnected(std::get<SharedPtr<ServerSession>>(sessions));
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cmd_buff[3] = Kernel::g_handle_table.Create(std::get<SharedPtr<ClientSession>>(sessions))
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.ValueOr(INVALID_HANDLE);
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break;
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}
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case FileCommand::SetPriority: {
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priority = cmd_buff[1];
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LOG_TRACE(Service_FS, "SetPriority %u", priority);
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break;
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}
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case FileCommand::GetPriority: {
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cmd_buff[2] = priority;
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LOG_TRACE(Service_FS, "GetPriority");
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break;
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}
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// Unknown command...
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default:
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LOG_ERROR(Service_FS, "Unknown command=0x%08X!", static_cast<u32>(cmd));
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ResultCode error = UnimplementedFunction(ErrorModule::FS);
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cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
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return;
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}
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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rb.Push(RESULT_SUCCESS);
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rb.PushObjects(std::get<SharedPtr<ClientSession>>(sessions));
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}
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File::~File() {}
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Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend,
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const FileSys::Path& path)
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: path(path), backend(std::move(backend)) {}
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@ -10,6 +10,7 @@
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#include "core/file_sys/archive_backend.h"
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#include "core/hle/kernel/hle_ipc.h"
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#include "core/hle/result.h"
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#include "core/hle/service/service.h"
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namespace FileSys {
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class DirectoryBackend;
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@ -47,7 +48,9 @@ enum class MediaType : u32 { NAND = 0, SDMC = 1, GameCard = 2 };
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typedef u64 ArchiveHandle;
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class File final : public Kernel::SessionRequestHandler {
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// TODO: File is not a real service, but it can still utilize ServiceFramework::RegisterHandlers.
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// Consider splitting ServiceFramework interface.
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class File final : public ServiceFramework<File> {
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public:
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File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path);
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~File();
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@ -60,8 +63,16 @@ public:
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u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means
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std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
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protected:
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void HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
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private:
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void Read(Kernel::HLERequestContext& ctx);
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void Write(Kernel::HLERequestContext& ctx);
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void GetSize(Kernel::HLERequestContext& ctx);
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void SetSize(Kernel::HLERequestContext& ctx);
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void Close(Kernel::HLERequestContext& ctx);
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void Flush(Kernel::HLERequestContext& ctx);
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void SetPriority(Kernel::HLERequestContext& ctx);
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void GetPriority(Kernel::HLERequestContext& ctx);
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void OpenLinkFile(Kernel::HLERequestContext& ctx);
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};
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class Directory final : public Kernel::SessionRequestHandler {
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