Esempi in C++ (Cpp) per decode_qsize_key

Esempio n. 1

File: t_queue.cpp Progetto: 2php/ssdb

static void get_qnames(Iterator *it, std::vector<std::string> *list){
	while(it->next()){
		Bytes ks = it->key();
		//dump(ks.data(), ks.size());
		if(ks.data()[0] != DataType::QSIZE){
			break;
		}
		std::string n;
		if(decode_qsize_key(ks, &n) == -1){
			continue;
		}
		list->push_back(n);
	}
}

Esempio n. 2

File: t_queue.cpp Progetto: 29n/ssdb

int SSDB::qlist(const Bytes &name_s, const Bytes &name_e, uint64_t limit,
		std::vector<std::string> *list){
	std::string start;
	std::string end;
	start = encode_qsize_key(name_s);
	if(!name_e.empty()){
		end = encode_qsize_key(name_e);
	}
	Iterator *it = this->iterator(start, end, limit);
	while(it->next()){
		Bytes ks = it->key();
		//dump(ks.data(), ks.size());
		if(ks.data()[0] != DataType::QSIZE){
			break;
		}
		std::string n;
		if(decode_qsize_key(ks, &n) == -1){
			continue;
		}
		list->push_back(n);
	}
	delete it;
	return 0;
}

Esempio n. 3

File: ssdb_impl.cpp Progetto: zhaoxunyong/ssdb

int SSDBImpl::key_range(std::vector<std::string> *keys){
	int ret = 0;
	std::string kstart, kend;
	std::string hstart, hend;
	std::string zstart, zend;
	std::string qstart, qend;
	
	Iterator *it;
	
	it = this->iterator(encode_kv_key(""), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::KV){
			std::string n;
			if(decode_kv_key(ks, &n) == -1){
				ret = -1;
			}else{
				kstart = n;
			}
		}
	}
	delete it;
	
	it = this->rev_iterator(encode_kv_key("\xff"), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::KV){
			std::string n;
			if(decode_kv_key(ks, &n) == -1){
				ret = -1;
			}else{
				kend = n;
			}
		}
	}
	delete it;
	
	it = this->iterator(encode_hsize_key(""), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::HSIZE){
			std::string n;
			if(decode_hsize_key(ks, &n) == -1){
				ret = -1;
			}else{
				hstart = n;
			}
		}
	}
	delete it;
	
	it = this->rev_iterator(encode_hsize_key("\xff"), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::HSIZE){
			std::string n;
			if(decode_hsize_key(ks, &n) == -1){
				ret = -1;
			}else{
				hend = n;
			}
		}
	}
	delete it;
	
	it = this->iterator(encode_zsize_key(""), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::ZSIZE){
			std::string n;
			if(decode_hsize_key(ks, &n) == -1){
				ret = -1;
			}else{
				zstart = n;
			}
		}
	}
	delete it;
	
	it = this->rev_iterator(encode_zsize_key("\xff"), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::ZSIZE){
			std::string n;
			if(decode_hsize_key(ks, &n) == -1){
				ret = -1;
			}else{
				zend = n;
			}
		}
	}
	delete it;
	
	it = this->iterator(encode_qsize_key(""), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::QSIZE){
			std::string n;
			if(decode_qsize_key(ks, &n) == -1){
				ret = -1;
			}else{
				qstart = n;
			}
		}
	}
	delete it;
	
	it = this->rev_iterator(encode_qsize_key("\xff"), "", 1);
	if(it->next()){
		Bytes ks = it->key();
		if(ks.data()[0] == DataType::QSIZE){
			std::string n;
			if(decode_qsize_key(ks, &n) == -1){
				ret = -1;
			}else{
				qend = n;
			}
		}
	}
	delete it;

	keys->push_back(kstart);
	keys->push_back(kend);
	keys->push_back(hstart);
	keys->push_back(hend);
	keys->push_back(zstart);
	keys->push_back(zend);
	keys->push_back(qstart);
	keys->push_back(qend);
	
	return ret;
}