72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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==============================================================================*/
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#include "tensorflow/compiler/xla/client/global_data.h"
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#include <string>
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#include <utility>
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#include "absl/container/flat_hash_map.h"
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#include "tensorflow/compiler/xla/types.h"
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#include "tensorflow/core/platform/logging.h"
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namespace xla {
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namespace {
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// Releases a set of global data handles owned by the parent service
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// interface.
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void ReleaseHandles(ServiceInterface* parent,
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const absl::Span<const GlobalDataHandle> handles) {
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UnregisterRequest request;
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for (auto& handle : handles) {
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VLOG(1) << "Requesting to unregister " << handle.ShortDebugString();
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*request.add_data() = handle;
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}
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UnregisterResponse response;
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Status status = parent->Unregister(&request, &response);
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VLOG(1) << "Done with request";
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if (!status.ok()) {
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LOG(WARNING) << "Failed to unregister handles: " << status
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<< "; continuing anyway...";
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}
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}
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} // namespace
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GlobalData::GlobalData(ServiceInterface* parent, GlobalDataHandle handle)
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: handle_(std::move(handle)), parent_(parent) {}
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GlobalData::~GlobalData() {
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if (parent_ != nullptr) {
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ReleaseHandles(parent_, {handle_});
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}
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}
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/* static */ void GlobalData::Release(
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std::vector<std::unique_ptr<GlobalData>> instances) {
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absl::flat_hash_map<ServiceInterface*, std::vector<GlobalDataHandle>>
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parent_handles_map;
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for (auto& instance : instances) {
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if (instance->parent_ != nullptr) {
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parent_handles_map[instance->parent_].push_back(instance->Release());
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}
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}
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for (auto& parent_handles : parent_handles_map) {
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ReleaseHandles(parent_handles.first, parent_handles.second);
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}
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}
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} // namespace xla
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