1 // Copyright (C) 2018 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // third_party/ashmem is Android shared memory. Instead of clone it here, 16 // use cutils/ashmem.h directly. 17 #include <cutils/ashmem.h> 18 19 #ifdef __cplusplus 20 extern "C" { 21 #endif 22 ashmem_get_prot_region(int fd)23inline int ashmem_get_prot_region(int fd) { 24 int ret = ashmem_valid(fd); 25 if (ret < 0) 26 return ret; 27 return TEMP_FAILURE_RETRY(ioctl(fd, ASHMEM_GET_PROT_MASK)); 28 } 29 30 #ifdef __cplusplus 31 } 32 #endif 33