wehub-resource-sync
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
// Copyright 2020-2021 The Ray Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <ray/api/arguments.h>
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#include <ray/api/object_ref.h>
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#include <ray/api/static_check.h>
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#include <ray/api/task_options.h>
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namespace ray {
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namespace internal {
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template <typename F>
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class ActorTaskCaller {
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public:
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ActorTaskCaller() = default;
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ActorTaskCaller(RayRuntime *runtime,
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const std::string &id,
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RemoteFunctionHolder remote_function_holder)
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: runtime_(runtime),
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id_(id),
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remote_function_holder_(std::move(remote_function_holder)) {}
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template <typename... Args>
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ObjectRef<boost::callable_traits::return_type_t<F>> Remote(Args &&...args);
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ActorTaskCaller &SetName(std::string name) {
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task_options_.name = std::move(name);
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return *this;
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}
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ActorTaskCaller &SetResources(std::unordered_map<std::string, double> resources) {
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task_options_.resources = std::move(resources);
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return *this;
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}
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ActorTaskCaller &SetResource(std::string name, double value) {
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task_options_.resources.emplace(std::move(name), value);
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return *this;
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}
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private:
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RayRuntime *runtime_;
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std::string id_;
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RemoteFunctionHolder remote_function_holder_;
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std::vector<TaskArg> args_;
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CallOptions task_options_;
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};
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// ---------- implementation ----------
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template <typename F>
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template <typename... Args>
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ObjectRef<boost::callable_traits::return_type_t<F>> ActorTaskCaller<F>::Remote(
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Args &&...args) {
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CheckTaskOptions(task_options_.resources);
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if constexpr (is_x_lang_v<F>) {
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using ArgsTuple = std::tuple<Args...>;
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Arguments::WrapArgs<ArgsTuple>(remote_function_holder_.lang_type_,
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&args_,
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std::make_index_sequence<sizeof...(Args)>{},
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std::forward<Args>(args)...);
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} else {
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StaticCheck<F, Args...>();
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using ArgsTuple = RemoveReference_t<RemoveFirst_t<boost::callable_traits::args_t<F>>>;
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Arguments::WrapArgs<ArgsTuple>(remote_function_holder_.lang_type_,
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&args_,
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std::make_index_sequence<sizeof...(Args)>{},
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std::forward<Args>(args)...);
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}
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using ReturnType = boost::callable_traits::return_type_t<F>;
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auto returned_object_id =
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runtime_->CallActor(remote_function_holder_, id_, args_, task_options_);
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auto return_ref = ObjectRef<ReturnType>(returned_object_id);
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// The core worker will add an initial ref to each return ID to keep it in
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// scope. Now that we've created the frontend ObjectRef, remove this initial
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// ref.
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runtime_->RemoveLocalReference(returned_object_id);
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return return_ref;
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}
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} // namespace internal
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} // namespace ray
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