/*! * Copyright (c) 2017 by Contributors * \file module_util.cc * \brief Utilities for module. */ #ifndef _LIBCPP_SGX_CONFIG #include <dmlc/memory_io.h> #endif #include <tvm/runtime/module.h> #include <tvm/runtime/registry.h> #include <string> #include "module_util.h" namespace tvm { namespace runtime { void ImportModuleBlob(const char* mblob, std::vector<Module>* mlist) { #ifndef _LIBCPP_SGX_CONFIG CHECK(mblob != nullptr); uint64_t nbytes = 0; for (size_t i = 0; i < sizeof(nbytes); ++i) { uint64_t c = mblob[i]; nbytes |= (c & 0xffUL) << (i * 8); } dmlc::MemoryFixedSizeStream fs( const_cast<char*>(mblob + sizeof(nbytes)), static_cast<size_t>(nbytes)); dmlc::Stream* stream = &fs; uint64_t size; CHECK(stream->Read(&size)); for (uint64_t i = 0; i < size; ++i) { std::string tkey; CHECK(stream->Read(&tkey)); std::string fkey = "module.loadbinary_" + tkey; const PackedFunc* f = Registry::Get(fkey); CHECK(f != nullptr) << "Loader of " << tkey << "(" << fkey << ") is not presented."; Module m = (*f)(static_cast<void*>(stream)); mlist->push_back(m); } #else LOG(FATAL) << "SGX does not support ImportModuleBlob"; #endif } PackedFunc WrapPackedFunc(BackendPackedCFunc faddr, const std::shared_ptr<ModuleNode>& sptr_to_self) { return PackedFunc([faddr, sptr_to_self](TVMArgs args, TVMRetValue* rv) { int ret = (*faddr)( const_cast<TVMValue*>(args.values), const_cast<int*>(args.type_codes), args.num_args); CHECK_EQ(ret, 0) << TVMGetLastError(); }); } } // namespace runtime } // namespace tvm