HidlTransportUtils.h revision 12f04d913dae2fb287089f6db24f144731c79d9c 
1/*
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 ANDROID_HIDL_TRANSPORT_UTILS_H
18#define ANDROID_HIDL_TRANSPORT_UTILS_H
19
20#include <android/hidl/base/1.0/IBase.h>
21
22namespace android {
23namespace hardware {
24
25/*
26 * Verifies the interface chain of 'interface' contains 'castTo'
27 */
28inline bool canCastInterface(::android::hidl::base::V1_0::IBase* interface, const char* castTo) {
29    if (interface == nullptr) {
30        return false;
31    }
32
33    bool canCast = false;
34    interface->interfaceChain([&](const hidl_vec<hidl_string> &types) {
35        for (size_t i = 0; i < types.size(); i++) {
36            if (types[i] == castTo) {
37                canCast = true;
38                break;
39            }
40        }
41    });
42    return canCast;
43}
44
45}   // namespace hardware
46}   // namespace android
47
48#endif //ANDROID_HIDL_TRANSPORT_UTILS_H
49