| namespace probingpt | |
| { | |
| //Read table from disk, return memory map location | |
| char * readTable(const char * filename, util::LoadMethod load_method, util::scoped_fd &file, util::scoped_memory &memory) | |
| { | |
| //std::cerr << "filename=" << filename << std::endl; | |
| file.reset(util::OpenReadOrThrow(filename)); | |
| uint64_t total_size_ = util::SizeFile(file.get()); | |
| MapRead(load_method, file.get(), 0, total_size_, memory); | |
| return (char*) memory.get(); | |
| } | |
| void serialize_table(char *mem, size_t size, const std::string &filename) | |
| { | |
| std::ofstream os(filename.c_str(), std::ios::binary); | |
| os.write((const char*) &mem[0], size); | |
| os.close(); | |
| } | |
| uint64_t getKey(const uint64_t source_phrase[], size_t size) | |
| { | |
| //TOO SLOW | |
| //uint64_t key = util::MurmurHashNative(&source_phrase[0], source_phrase.size()); | |
| uint64_t key = 0; | |
| for (size_t i = 0; i < size; i++) { | |
| key += (source_phrase[i] << i); | |
| } | |
| return key; | |
| } | |
| } | |