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Add move semantics.

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This commit is contained in:
King_DuckZ 2016-01-06 13:12:00 +00:00
parent 6edfb08383
commit f82659e370
2 changed files with 32 additions and 7 deletions
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15
include/pq/connection.hpp
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@ -32,6 +32,8 @@ namespace pq {
class Connection {
public:
Connection ( std::string&& parUsername, std::string&& parPasswd, std::string&& parDatabase, std::string&& parAddress, uint16_t parPort );
Connection ( Connection&& );
Connection ( const Connection& ) = delete;
~Connection ( void ) noexcept;
std::string error_message ( void ) const;
@ -46,6 +48,9 @@ namespace pq {
template <typename... Args>
ResultSet query ( const std::string& parQuery, Args&&... parArgs );
Connection& operator= ( Connection&& );
Connection& operator= ( const Connection& ) = delete;
private:
struct LocalData;
using PGParams = std::unique_ptr<::PGparam, void(*)(::PGparam*)>;
@ -53,12 +58,12 @@ namespace pq {
ResultSet query_params ( const std::string& parQuery, PGParams& parParams );
PGParams make_params ( const std::string* parTypes, ... );
const std::string m_username;
const std::string m_passwd;
const std::string m_database;
const std::string m_address;
const uint16_t m_port;
std::unique_ptr<LocalData> m_localData;
std::string m_username;
std::string m_passwd;
std::string m_database;
std::string m_address;
uint16_t m_port;
};
template <typename... Args>

24
src/pq/connection.cpp
View file

@ -78,20 +78,40 @@ namespace pq {
};
Connection::Connection (std::string&& parUsername, std::string&& parPasswd, std::string&& parDatabase, std::string&& parAddress, uint16_t parPort) :
m_localData(new LocalData),
m_username(std::move(parUsername)),
m_passwd(std::move(parPasswd)),
m_database(std::move(parDatabase)),
m_address(std::move(parAddress)),
m_port(parPort),
m_localData(new LocalData)
m_port(parPort)
{
m_localData->connection = nullptr;
}
Connection::Connection (Connection&& parOther) :
m_localData(std::move(parOther.m_localData)),
m_username(std::move(parOther.m_username)),
m_passwd(std::move(parOther.m_passwd)),
m_database(std::move(parOther.m_database)),
m_address(std::move(parOther.m_address)),
m_port(parOther.m_port)
{
}
Connection::~Connection() noexcept {
disconnect();
}
Connection& Connection::operator= (Connection&& parOther) {
m_localData = std::move(parOther.m_localData);
m_username = std::move(parOther.m_username);
m_passwd = std::move(parOther.m_passwd);
m_database = std::move(parOther.m_database);
m_address = std::move(parOther.m_address);
m_port = parOther.m_port;
return *this;
}
bool Connection::is_connected() const noexcept {
return m_localData->connection != nullptr;
}