Merge "Added implementation of shared memory NDK API"

    net.c \

    obb.cpp \

    sensor.cpp \

    sharedmem.cpp \

    storage_manager.cpp \

    trace.cpp \

    ASensor_getType;

    ASensor_getVendor;

    ASensor_isWakeUpSensor; # introduced=21

    ASharedMemory_create; # introduced=26

    ASharedMemory_getSize; # introduced=26

    ASharedMemory_setProt; # introduced=26

    AStorageManager_delete;

    AStorageManager_getMountedObbPath;

    AStorageManager_isObbMounted;

/*

 * Copyright (C) 2017 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.

 */

#include <android/sharedmem.h>

#include <cutils/ashmem.h>

#include <utils/Errors.h>

int ASharedMemory_create(const char *name, size_t size) {

    if (size == 0) {

        return android::BAD_VALUE;

    }

    return ashmem_create_region(name, size);

}

size_t ASharedMemory_getSize(int fd) {

    return ashmem_valid(fd) ? ashmem_get_size_region(fd) : 0;

}

int ASharedMemory_setProt(int fd, int prot) {

    return ashmem_set_prot_region(fd, prot);

}