/*! * Copyright (c) 2017 by Contributors * \file rpc_event_impl.cc * \brief Event based RPC server implementation. */ #include <tvm/runtime/registry.h> #include <memory> #include "./rpc_session.h" namespace tvm { namespace runtime { class CallbackChannel final : public RPCChannel { public: explicit CallbackChannel(PackedFunc fsend) : fsend_(fsend) {} size_t Send(const void* data, size_t size) final { TVMByteArray bytes; bytes.data = static_cast<const char*>(data); bytes.size = size; uint64_t ret = fsend_(bytes); return static_cast<size_t>(ret); } size_t Recv(void* data, size_t size) final { LOG(FATAL) << "Do not allow explicit receive for"; return 0; } private: PackedFunc fsend_; }; PackedFunc CreateEventDrivenServer(PackedFunc fsend, std::string name) { std::unique_ptr<CallbackChannel> ch(new CallbackChannel(fsend)); std::shared_ptr<RPCSession> sess = RPCSession::Create(std::move(ch), name); return PackedFunc([sess](TVMArgs args, TVMRetValue* rv) { int ret = sess->ServerEventHandler(args[0], args[1]); *rv = ret; }); } TVM_REGISTER_GLOBAL("contrib.rpc._CreateEventDrivenServer") .set_body([](TVMArgs args, TVMRetValue* rv) { *rv = CreateEventDrivenServer(args[0], args[1]); }); } // namespace runtime } // namespace tvm