160     std::string srcFile = UPDATER_PATH + para.partName + ".backup";  in GetSourceFile()  local
162     if (access(srcFile.c_str(), F_OK) == 0 && GetFileHash(srcFile) != para.srcHash) {  in GetSourceFile()
163         LOG(INFO) << "using backup file:" << srcFile;  in GetSourceFile()
164         return srcFile;  in GetSourceFile()
167     if (!Utils::CopyFile(para.devPath, srcFile)) {  in GetSourceFile()
168         LOG(ERROR) << "copy " << para.devPath << " to " << srcFile << " failed";  in GetSourceFile()
171     return srcFile;  in GetSourceFile()
192     std::string srcFile = GetSourceFile(para);  in ExecuteImagePatch()  local
193     if (srcFile.empty()) {  in ExecuteImagePatch()
199     ret = UpdatePatch::PatchMapFile(srcFile, srcData);  in ExecuteImagePatch()
224     unlink(srcFile.c_str());  in ExecuteImagePatch()