Josh Gao | e440199 | 2019-04-25 14:04:57 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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 | #include <memory> |
| 18 | |
| 19 | #include "android-base/cmsg.h" |
| 20 | #include "android-base/file.h" |
| 21 | #include "android-base/mapped_file.h" |
| 22 | #include "android-base/unique_fd.h" |
| 23 | |
| 24 | namespace android { |
| 25 | namespace base { |
| 26 | |
| 27 | // These ABI-compatibility shims are in a separate file for two reasons: |
| 28 | // 1. If they were in the file with the actual functions, it prevents calls to |
| 29 | // those functions by other functions in the file, due to ambiguity. |
| 30 | // 2. We will hopefully be able to delete these quickly. |
| 31 | |
| 32 | #if !defined(_WIN32) |
| 33 | ssize_t SendFileDescriptorVector(int sockfd, const void* data, size_t len, |
| 34 | const std::vector<int>& fds) { |
| 35 | return SendFileDescriptorVector(borrowed_fd(sockfd), data, len, fds); |
| 36 | } |
| 37 | |
| 38 | ssize_t ReceiveFileDescriptorVector(int sockfd, void* data, size_t len, size_t max_fds, |
| 39 | std::vector<unique_fd>* fds) { |
| 40 | return ReceiveFileDescriptorVector(borrowed_fd(sockfd), data, len, max_fds, fds); |
| 41 | } |
| 42 | #endif |
| 43 | |
| 44 | bool ReadFdToString(int fd, std::string* content) { |
| 45 | return ReadFdToString(borrowed_fd(fd), content); |
| 46 | } |
| 47 | |
| 48 | bool WriteStringToFd(const std::string& content, int fd) { |
| 49 | return WriteStringToFd(content, borrowed_fd(fd)); |
| 50 | } |
| 51 | |
| 52 | bool ReadFully(int fd, void* data, size_t byte_count) { |
| 53 | return ReadFully(borrowed_fd(fd), data, byte_count); |
| 54 | } |
| 55 | |
| 56 | bool ReadFullyAtOffset(int fd, void* data, size_t byte_count, off64_t offset) { |
| 57 | return ReadFullyAtOffset(borrowed_fd(fd), data, byte_count, offset); |
| 58 | } |
| 59 | |
| 60 | bool WriteFully(int fd, const void* data, size_t byte_count) { |
| 61 | return WriteFully(borrowed_fd(fd), data, byte_count); |
| 62 | } |
| 63 | |
| 64 | #if defined(__LP64__) |
| 65 | #define MAPPEDFILE_FROMFD _ZN10MappedFile6FromFdEilmi |
| 66 | #else |
| 67 | #define MAPPEDFILE_FROMFD _ZN10MappedFile6FromFdEixmi |
| 68 | #endif |
| 69 | |
| 70 | #pragma clang diagnostic ignored "-Wreturn-type-c-linkage" |
| 71 | extern "C" std::unique_ptr<MappedFile> MAPPEDFILE_FROMFD(int fd, off64_t offset, size_t length, |
| 72 | int prot) { |
| 73 | return MappedFile::FromFd(fd, offset, length, prot); |
| 74 | } |
| 75 | |
| 76 | } // namespace base |
| 77 | } // namespace android |