Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 1 | // Copyright 2017 Google Inc. |
| 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 | #include "internal/filesystem.h" |
| 16 | |
| 17 | #include <errno.h> |
| 18 | #include <fcntl.h> |
Leonard Mosescu | bdb36d9 | 2019-07-03 05:57:19 -0700 | [diff] [blame] | 19 | #include <stdlib.h> |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 20 | #include <sys/stat.h> |
| 21 | #include <sys/types.h> |
| 22 | |
Guillaume Chatelet | e8e5610 | 2019-01-15 10:52:56 +0100 | [diff] [blame] | 23 | #if defined(CPU_FEATURES_MOCK_FILESYSTEM) |
| 24 | // Implementation will be provided by test/filesystem_for_testing.cc. |
| 25 | #elif defined(_MSC_VER) |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 26 | #include <io.h> |
Arvid Gerstmann | d968991 | 2018-05-04 09:32:17 +0200 | [diff] [blame] | 27 | int CpuFeatures_OpenFile(const char* filename) { |
Leonard Mosescu | bdb36d9 | 2019-07-03 05:57:19 -0700 | [diff] [blame] | 28 | int fd = -1; |
| 29 | _sopen_s(&fd, filename, _O_RDONLY, _SH_DENYWR, _S_IREAD); |
| 30 | return fd; |
Arvid Gerstmann | d968991 | 2018-05-04 09:32:17 +0200 | [diff] [blame] | 31 | } |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 32 | |
Arvid Gerstmann | a1ffdcb | 2018-04-26 10:31:03 +0200 | [diff] [blame] | 33 | void CpuFeatures_CloseFile(int file_descriptor) { _close(file_descriptor); } |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 34 | |
Arvid Gerstmann | d968991 | 2018-05-04 09:32:17 +0200 | [diff] [blame] | 35 | int CpuFeatures_ReadFile(int file_descriptor, void* buffer, |
| 36 | size_t buffer_size) { |
Leonard Mosescu | bdb36d9 | 2019-07-03 05:57:19 -0700 | [diff] [blame] | 37 | return _read(file_descriptor, buffer, (unsigned int)buffer_size); |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 38 | } |
| 39 | |
| 40 | #else |
| 41 | #include <unistd.h> |
| 42 | |
Arvid Gerstmann | a1ffdcb | 2018-04-26 10:31:03 +0200 | [diff] [blame] | 43 | int CpuFeatures_OpenFile(const char* filename) { |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 44 | int result; |
| 45 | do { |
| 46 | result = open(filename, O_RDONLY); |
| 47 | } while (result == -1L && errno == EINTR); |
| 48 | return result; |
| 49 | } |
| 50 | |
Arvid Gerstmann | a1ffdcb | 2018-04-26 10:31:03 +0200 | [diff] [blame] | 51 | void CpuFeatures_CloseFile(int file_descriptor) { close(file_descriptor); } |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 52 | |
Arvid Gerstmann | d968991 | 2018-05-04 09:32:17 +0200 | [diff] [blame] | 53 | int CpuFeatures_ReadFile(int file_descriptor, void* buffer, |
| 54 | size_t buffer_size) { |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 55 | int result; |
| 56 | do { |
| 57 | result = read(file_descriptor, buffer, buffer_size); |
| 58 | } while (result == -1L && errno == EINTR); |
| 59 | return result; |
| 60 | } |
| 61 | |
| 62 | #endif |