| // Copyright 2017 Google Inc. |
| // |
| // 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. |
| |
| // An interface for the filesystem that allows mocking the filesystem in |
| // unittests. |
| #ifndef CPU_FEATURES_INCLUDE_INTERNAL_FILESYSTEM_H_ |
| #define CPU_FEATURES_INCLUDE_INTERNAL_FILESYSTEM_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| #include "cpu_features_macros.h" |
| |
| CPU_FEATURES_START_CPP_NAMESPACE |
| |
| // Same as linux "open(filename, O_RDONLY)", retries automatically on EINTR. |
| int CpuFeatures_OpenFile(const char* filename); |
| |
| // Same as linux "read(file_descriptor, buffer, buffer_size)", retries |
| // automatically on EINTR. |
| int CpuFeatures_ReadFile(int file_descriptor, void* buffer, size_t buffer_size); |
| |
| // Same as linux "close(file_descriptor)". |
| void CpuFeatures_CloseFile(int file_descriptor); |
| |
| CPU_FEATURES_END_CPP_NAMESPACE |
| |
| #endif // CPU_FEATURES_INCLUDE_INTERNAL_FILESYSTEM_H_ |