xref: /aosp_15_r20/frameworks/native/include/private/gui/ParcelUtils.h (revision 38e8c45f13ce32b0dcecb25141ffecaf386fa17f)

/*
 * Copyright 2021 The Android Open Source Project
 *
 * 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.
 */

#pragma once

#include <cstring>

#define SAFE_PARCEL(FUNC, ...)                                                                   \
    {                                                                                            \
        status_t error = FUNC(__VA_ARGS__);                                                      \
        if (error) {                                                                             \
            ALOGE("ERROR(%s, %d). Failed to call parcel %s(%s)", strerror(-error), error, #FUNC, \
                  #__VA_ARGS__);                                                                 \
            return error;                                                                        \
        }                                                                                        \
    }

#define SAFE_PARCEL_READ_SIZE(FUNC, COUNT, SIZE)                             \
    {                                                                        \
        SAFE_PARCEL(FUNC, COUNT);                                            \
        if (static_cast<unsigned int>(*COUNT) > SIZE) {                      \
            ALOGE("ERROR(BAD_VALUE). %s was greater than dataSize", #COUNT); \
            return BAD_VALUE;                                                \
        }                                                                    \
    }