wehub-resource-sync
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/* Copyright 2023 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/jit/variable_info.h"
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#include <memory>
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#include <optional>
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#include <set>
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#include <utility>
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#include <vector>
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#include "tensorflow/core/framework/op.h"
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#include "tensorflow/core/framework/tensor.h"
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#include "tensorflow/core/lib/core/errors.h"
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#include "tensorflow/core/lib/core/refcount.h"
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#include "tsl/platform/status.h"
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namespace tensorflow {
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VariableInfo::VariableInfo(
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int index, absl::string_view name, Var* var,
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const std::optional<ManagedStackTrace>& definition_stack_trace)
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: index_(index),
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name_(name),
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var_(var),
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definition_stack_trace_(definition_stack_trace) {}
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VariableInfo::VariableInfo(VariableInfo&& other)
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: index_(other.index_),
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var_(other.var_),
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definition_stack_trace_(other.definition_stack_trace_),
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lock_held_(other.lock_held_) {
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other.index_ = -1;
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other.var_ = nullptr;
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}
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VariableInfo& VariableInfo::operator=(VariableInfo&& other) {
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index_ = other.index_;
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var_ = other.var_;
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lock_held_ = other.lock_held_;
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definition_stack_trace_ = other.definition_stack_trace_;
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other.index_ = -1;
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other.var_ = nullptr;
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return *this;
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}
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VariableInfo::~VariableInfo() {
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// Release the variable's lock if we hold it. Ensures that the lock is
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// released even on error. It does not matter in what order we release the
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// locks.
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if (var()) {
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if (lock_held()) {
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var()->mu()->unlock();
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}
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if (shared_lock_held()) {
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var()->mu()->unlock_shared();
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}
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// Unref the variable so it can be released by ResourceManager.
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var()->Unref();
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}
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}
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} // namespace tensorflow
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