Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 Google Inc. |
| 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 "sys.hpp" |
| 18 | |
| 19 | #include <fcntl.h> |
Patrick Venture | 7b91cbc | 2018-11-28 14:24:41 -0800 | [diff] [blame] | 20 | #include <sys/ioctl.h> |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 21 | #include <sys/mman.h> |
Patrick Venture | cf9b219 | 2019-06-27 12:09:52 -0700 | [diff] [blame^] | 22 | #include <sys/stat.h> |
| 23 | #include <sys/types.h> |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 24 | #include <unistd.h> |
| 25 | |
Patrick Venture | cf9b219 | 2019-06-27 12:09:52 -0700 | [diff] [blame^] | 26 | #include <cstdint> |
| 27 | |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 28 | namespace internal |
| 29 | { |
| 30 | |
Patrick Venture | cf9b219 | 2019-06-27 12:09:52 -0700 | [diff] [blame^] | 31 | std::int64_t SysImpl::getSize(const char* pathname) const |
| 32 | { |
| 33 | struct stat results; |
| 34 | int rc = ::stat(pathname, &results); |
| 35 | if (rc) |
| 36 | { |
| 37 | return 0; |
| 38 | } |
| 39 | |
| 40 | return static_cast<std::int64_t>(results.st_size); |
| 41 | } |
| 42 | |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 43 | int SysImpl::open(const char* pathname, int flags) const |
| 44 | { |
| 45 | return ::open(pathname, flags); |
| 46 | } |
| 47 | |
Patrick Venture | cec0490 | 2019-01-15 13:04:44 -0800 | [diff] [blame] | 48 | int SysImpl::read(int fd, void* buf, std::size_t count) const |
| 49 | { |
| 50 | return static_cast<int>(::read(fd, buf, count)); |
| 51 | } |
| 52 | |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 53 | int SysImpl::close(int fd) const |
| 54 | { |
| 55 | return ::close(fd); |
| 56 | } |
| 57 | |
Patrick Venture | 28abae7 | 2018-12-14 09:44:02 -0800 | [diff] [blame] | 58 | void* SysImpl::mmap(void* addr, std::size_t length, int prot, int flags, int fd, |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 59 | off_t offset) const |
| 60 | { |
| 61 | return ::mmap(addr, length, prot, flags, fd, offset); |
| 62 | } |
| 63 | |
Patrick Venture | 28abae7 | 2018-12-14 09:44:02 -0800 | [diff] [blame] | 64 | int SysImpl::munmap(void* addr, std::size_t length) const |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 65 | { |
| 66 | return ::munmap(addr, length); |
| 67 | } |
| 68 | |
| 69 | int SysImpl::getpagesize() const |
| 70 | { |
| 71 | return ::getpagesize(); |
| 72 | } |
| 73 | |
Patrick Venture | 7b91cbc | 2018-11-28 14:24:41 -0800 | [diff] [blame] | 74 | int SysImpl::ioctl(int fd, unsigned long request, void* param) const |
| 75 | { |
| 76 | return ::ioctl(fd, request, param); |
| 77 | } |
| 78 | |
Patrick Venture | 7b78aa2 | 2018-12-14 13:56:15 -0800 | [diff] [blame] | 79 | int SysImpl::poll(struct pollfd* fds, nfds_t nfds, int timeout) const |
| 80 | { |
| 81 | return ::poll(fds, nfds, timeout); |
| 82 | } |
| 83 | |
Patrick Venture | 8b58856 | 2018-11-18 08:44:33 -0800 | [diff] [blame] | 84 | SysImpl sys_impl; |
| 85 | |
| 86 | } // namespace internal |