1 /** 2 * Copyright © 2020 IBM Corporation 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 "ffdc_file.hpp" 18 19 #include <errno.h> // for errno 20 #include <fcntl.h> // for open() 21 #include <string.h> // for strerror() 22 #include <sys/stat.h> // for open() 23 #include <sys/types.h> // for open() 24 25 #include <stdexcept> 26 #include <string> 27 28 namespace phosphor::power::regulators 29 { 30 31 FFDCFile::FFDCFile(FFDCFormat format, uint8_t subType, uint8_t version) : 32 format{format}, subType{subType}, version{version} 33 { 34 // Open the temporary file for both reading and writing 35 int fd = open(tempFile.getPath().c_str(), O_RDWR); 36 if (fd == -1) 37 { 38 throw std::runtime_error{std::string{"Unable to open FFDC file: "} + 39 strerror(errno)}; 40 } 41 42 // Store file descriptor in FileDescriptor object 43 descriptor.set(fd); 44 } 45 46 void FFDCFile::remove() 47 { 48 // Close file descriptor. Does nothing if descriptor was already closed. 49 // Returns -1 if close failed. 50 if (descriptor.close() == -1) 51 { 52 throw std::runtime_error{std::string{"Unable to close FFDC file: "} + 53 strerror(errno)}; 54 } 55 56 // Delete temporary file. Does nothing if file was already deleted. 57 // Throws an exception if the deletion failed. 58 tempFile.remove(); 59 } 60 61 } // namespace phosphor::power::regulators 62