wehub-resource-sync
37 lines
1.4 KiB
C++
37 lines
1.4 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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#ifndef TENSORFLOW_LITE_DELEGATES_UTILS_SYNC_FENCE_H_
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#define TENSORFLOW_LITE_DELEGATES_UTILS_SYNC_FENCE_H_
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#include <optional>
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#include <variant>
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#include "absl/types/span.h"
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namespace tflite::delegates::utils {
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// Blocks until all file descriptors have been signalled, or returns an error
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// (signified by an instance with no value).
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std::optional<std::monostate> WaitForAllFds(absl::Span<const int> fds);
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// Returns (without blocking) `true` if all the provided file descriptors are
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// signalled, `false` if at least one file descriptor is not yet signalled, or
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// an error (indicated by an instance with no value).
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std::optional<bool> AreAllFdsSignalled(absl::Span<const int> fds);
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} // namespace tflite::delegates::utils
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#endif // TENSORFLOW_LITE_DELEGATES_UTILS_SYNC_FENCE_H_
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