1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <unistd.h>
18
19#include <hidlmemory/FrameworkUtils.h>
20
21namespace android {
22
23namespace hardware {
24
25sp<HidlMemory> fromHeap(const sp<IMemoryHeap>& heap) {
26    int fd = dup(heap->getHeapID());
27
28    if (fd < 0) {
29        return HidlMemory::getInstance(hidl_memory());
30    }
31
32    // Only being used because this library is paired with the IAllocator
33    // ashmem. Other places should not make assumptions about the contents
34    // of this memory.
35    return HidlMemory::getInstance("ashmem", fd, heap->getSize());
36}
37
38}  // namespace hardware
39}  // namespace android
40