chromium/third_party/tflite/src/tensorflow/lite/mmap_allocation.cc

/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

#include <fcntl.h>
#include <stddef.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>

#include <cerrno>

#include "tensorflow/lite/allocation.h"
#include "tensorflow/lite/core/api/error_reporter.h"

namespace tflite {
namespace {

size_t GetFdSizeBytes(int fd) { … }

}  // namespace

MMAPAllocation::MMAPAllocation(const char* filename,
                               ErrorReporter* error_reporter)
    : … { … }

MMAPAllocation::MMAPAllocation(int fd, ErrorReporter* error_reporter)
    : … { … }

MMAPAllocation::MMAPAllocation(int fd, size_t offset, size_t length,
                               ErrorReporter* error_reporter)
    : … { … }

MMAPAllocation::MMAPAllocation(ErrorReporter* error_reporter, int owned_fd)
    : … { … }

MMAPAllocation::MMAPAllocation(ErrorReporter* error_reporter, int owned_fd,
                               size_t offset, size_t length)
    : … { … }

MMAPAllocation::~MMAPAllocation() { … }

const void* MMAPAllocation::base() const { … }

size_t MMAPAllocation::bytes() const { … }

bool MMAPAllocation::valid() const { … }

bool MMAPAllocation::IsSupported() { … }

}  // namespace tflite