libtransport.git Changeset - be466846d271

Changeset - be466846d271

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HanzZ - 14 years ago 2011-08-12 16:16:43
hanzz.k@gmail.com

first working mysql statement

2 files changed with 141 insertions and 3 deletions:

include/transport/mysqlbackend.h

src/mysqlbackend.cpp

115

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include/transport/mysqlbackend.h

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@@ @@ -93,12 +93,37 @@ class MySQLBackend : public StorageBackend @@
 	private:
 		bool exec(const std::string &query);
 		class Statement {
 			public:
 				Statement(MYSQL *conn, const std::string &format, const std::string &statement);
 				~Statement();
 				bool execute();
 				// Pushes new data used as input for the statement.
 				template <typename T>
 				Statement& operator << (const T& t);
 				Statement& operator << (const std::string& str);
 				// Pulls fetched data by previous execute(); call.
 				template <typename T>
 				Statement& operator >> (T& t);
 			private:
 				MYSQL_STMT *m_stmt;
 				std::vector<MYSQL_BIND> m_params;
 				int m_resultOffset;
 				int m_offset;
 				int m_error;
 		};
 		MYSQL m_conn;
 		Config *m_config;
 		std::string m_prefix;
 		// statements
 		MYSQL_STMT *m_setUser;
 // 		MYSQL_STMT *m_setUser;
 		Statement * m_setUser;
 		MYSQL_STMT *m_getUser;
 		MYSQL_STMT *m_getUserSetting;
 		MYSQL_STMT *m_setUserSetting;

src/mysqlbackend.cpp

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@@ @@ -76,6 +76,116 @@ namespace Transport { @@
 static LoggerPtr logger = Logger::getLogger("MySQLBackend");
 MySQLBackend::Statement::Statement(MYSQL *conn, const std::string &format, const std::string &statement) {
 	m_resultOffset = -1;
 	m_offset = 0;
 	m_stmt = mysql_stmt_init(conn);
 	if (mysql_stmt_prepare(m_stmt, statement.c_str(), statement.size())) {
 		LOG4CXX_ERROR(logger, statement << " " << mysql_error(conn));
 		return;
+	}
 	for (int i = 0; i < format.length(); i++) {
 		switch (format.at(i)) {
 			case 's':
 				m_params.resize(m_params.size() + 1);
 				memset(&m_params.back(), 0, sizeof(MYSQL_BIND));
 				m_params.back().buffer_type= MYSQL_TYPE_STRING;
 				m_params.back().buffer= (char *) malloc(sizeof(char) * 4096);
 				m_params.back().buffer_length= 4096;
 				m_params.back().is_null= 0;
 				m_params.back().length= (unsigned long *) malloc(sizeof(unsigned long));
 				break;
 			case 'i':
 				m_params.resize(m_params.size() + 1);
 				memset(&m_params.back(), 0, sizeof(MYSQL_BIND));
 				m_params.back().buffer_type= MYSQL_TYPE_LONG;
 				m_params.back().buffer= (unsigned long *) malloc(sizeof(unsigned long));
 				m_params.back().is_null= 0;
 				m_params.back().length= (unsigned long *) malloc(sizeof(unsigned long));
 				break;
 			case 'b':
 				m_params.resize(m_params.size() + 1);
 				memset(&m_params.back(), 0, sizeof(MYSQL_BIND));
 				m_params.back().buffer_type= MYSQL_TYPE_TINY;
 				m_params.back().buffer= (bool *) malloc(sizeof(bool));
 				m_params.back().is_null= 0;
 				m_params.back().length= (unsigned long *) malloc(sizeof(unsigned long));
 				break;
 // 			case 'b':
 // 				m_params.push_back(NULL);
 // 				break;
 			case '|':
 				m_resultOffset = i;
 				break;
+		}
+	}
 	if (m_resultOffset < 0)
 		m_resultOffset = format.size();
 	if (mysql_stmt_bind_param(m_stmt, &m_params.front())) {
 		LOG4CXX_ERROR(logger, statement << " " << mysql_error(conn));
+	}
+}
 MySQLBackend::Statement::~Statement() {
 	for (int i = 0; i < m_params.size(); i++) {
 		free(m_params[i].buffer);
 		free(m_params[i].length);
+	}
 	FINALIZE_STMT(m_stmt);
+}
 bool MySQLBackend::Statement::execute() {
 	// If statement has some input and doesn't have any output, we have
 	// to clear the offset now, because operator>> will not be called.
 	if (m_resultOffset != 0 && m_offset + 1 == m_params.size()) {
 		m_offset = 0;
+	}
 	if (mysql_stmt_execute(m_stmt)) {
 		return false;
+	}
 	return true;
+}
 template <typename T>
 MySQLBackend::Statement& MySQLBackend::Statement::operator << (const T& t) {
 	if (m_offset >= m_resultOffset)
 		return *this;
 	T *data = (T *) m_params[m_offset].buffer;
 	*data = t;
 	LOG4CXX_INFO(logger, "adding " << m_offset << ":" << t);
 	m_offset++;
 	return *this;
+}
 MySQLBackend::Statement& MySQLBackend::Statement::operator << (const std::string& str) {
 	if (m_offset >= m_resultOffset)
 		return *this;
 	LOG4CXX_INFO(logger, "adding " << m_offset << ":" << str << "(" << str.size() << ")");
 	strncpy((char*) m_params[m_offset].buffer, str.c_str(), 4096);
 	*m_params[m_offset].length = str.size();
 	m_offset++;
 	return *this;
+}
 template <typename T>
 MySQLBackend::Statement& MySQLBackend::Statement::operator >> (T& t) {
 	if (m_offset < m_resultOffset)
 		return *this;
 	std::swap(t, *(T *) m_params[m_offset]);
 	if (++m_offset == m_params.size())
 		m_offset = 0;
 	return *this;
+}
 MySQLBackend::MySQLBackend(Config *config) {
 	m_config = config;
 	mysql_init(&m_conn);
@@ @@ -83,7 +193,8 @@ MySQLBackend::MySQLBackend(Config *config) { @@
+}
 MySQLBackend::~MySQLBackend(){
 	FINALIZE_STMT(m_setUser);
 // 	FINALIZE_STMT(m_setUser);
 	delete m_setUser;
 	FINALIZE_STMT(m_getUser);
 	FINALIZE_STMT(m_removeUser);
 	FINALIZE_STMT(m_removeUserBuddies);
@@ @@ -117,7 +228,7 @@ bool MySQLBackend::connect() { @@
 	createDatabase();
-	PREP_STMT(m_setUser, "INSERT INTO " + m_prefix + "users (jid, uin, password, language, encoding, last_login, vip) VALUES (?, ?, ?, ?, ?, NOW(), ?)");
+	m_setUser = new Statement(&m_conn, "sssssb", "INSERT INTO " + m_prefix + "users (jid, uin, password, language, encoding, last_login, vip) VALUES (?, ?, ?, ?, ?, NOW(), ?)");
 	PREP_STMT(m_getUser, "SELECT id, jid, uin, password, encoding, language, vip FROM " + m_prefix + "users WHERE jid=?");
 	PREP_STMT(m_removeUser, "DELETE FROM " + m_prefix + "users WHERE id=?");
@@ @@ -205,6 +316,8 @@ bool MySQLBackend::exec(const std::string &query) { @@
+}
 void MySQLBackend::setUser(const UserInfo &user) {
 	*m_setUser << user.jid << user.uin << user.password << user.language << user.encoding << user.vip;
 	m_setUser->execute();
+}
 bool MySQLBackend::getUser(const std::string &barejid, UserInfo &user) {

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