blob: c9da301bef9569c07e41edb09f6cb24ba968fad5 [file] [log] [blame]
Chong Zhang6d332d22016-09-07 12:06:50 -07001/*
2 * Copyright (C) 2016 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#ifndef _OMX_FENCE_PARCELABLE_
18#define _OMX_FENCE_PARCELABLE_
19
20#include <binder/Parcel.h>
21
22namespace android {
23
24struct OMXFenceParcelable : public Parcelable {
25 OMXFenceParcelable() : mFenceFd(-1) {}
26 OMXFenceParcelable(int fenceFd) : mFenceFd(fenceFd) {}
27
28 int get() const { return mFenceFd; }
29
30 status_t readFromParcel(const Parcel* parcel) override;
31 status_t writeToParcel(Parcel* parcel) const override;
32
33private:
34 // Disable copy ctor and operator=
35 OMXFenceParcelable(const OMXFenceParcelable &);
36 OMXFenceParcelable &operator=(const OMXFenceParcelable &);
37
38 int mFenceFd;
39};
40
41inline status_t OMXFenceParcelable::readFromParcel(const Parcel* parcel) {
42 int32_t haveFence;
43 status_t err = parcel->readInt32(&haveFence);
44 if (err == OK && haveFence) {
45 int fd = ::dup(parcel->readFileDescriptor());
46 if (fd < 0) {
47 return fd;
48 }
49 mFenceFd = fd;
50 }
51 return err;
52}
53
54inline status_t OMXFenceParcelable::writeToParcel(Parcel* parcel) const {
55 status_t err = parcel->writeInt32(mFenceFd >= 0);
56 if (err == OK && mFenceFd >= 0) {
57 err = parcel->writeFileDescriptor(mFenceFd, true /* takeOwnership */);
58 }
59 return err;
60}
61
62} // namespace android
63
64#endif // _OMX_FENCE_PARCELABLE_