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# mysqlpp::UnixDomainSocketConnection Class Reference

Specialization of `Connection` for Unix domain sockets. More...

`#include <uds_connection.h>`

Inheritance diagram for mysqlpp::UnixDomainSocketConnection:

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Collaboration diagram for mysqlpp::UnixDomainSocketConnection:

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List of all members.

## Public Member Functions
| UnixDomainSocketConnection ()
| Create object without connecting it to the MySQL server.
| UnixDomainSocketConnection (const char *path, const char *db=0, const char *user=0, const char *password=0)
| Create object and connect to database server over Unix domain sockets in one step.
| UnixDomainSocketConnection (const UnixDomainSocketConnection &other)
| Establish a new connection using the same parameters as an existing connection.
| ~UnixDomainSocketConnection ()
| Destroy object.
bool | connect (const char *path, const char *db=0, const char *user=0, const char *password=0)
| Connect to database after object is created.
## Static Public Member Functions
static bool | is_socket (const char *path, std::string *error=0)
| Check that the given path names a Unix domain socket and that we have read-write permission for it.

## Detailed Description

Specialization of `Connection` for Unix domain sockets.

This class just simplifies the connection creation interface of `Connection`. It does not add new functionality.

## Constructor & Destructor Documentation

mysqlpp::UnixDomainSocketConnection::UnixDomainSocketConnection | ( | const char * | path,
|  | const char * | db = `0`,
|  | const char * | user = `0`,
|  | const char * | password = `0` |
| ) |  |  | `[inline]`

Create object and connect to database server over Unix domain sockets in one step.

Parameters:

  | path | filesystem path to socket
  | db | name of database to use
  | user | user name to log in under, or 0 to use the user name the program is running under
  | password | password to use when logging in

BEWARE: These parameters are not in the same order as those in the corresponding constructor for Connection. This is a feature, not a bug. :)

mysqlpp::UnixDomainSocketConnection::UnixDomainSocketConnection | ( | const UnixDomainSocketConnection & | other | ) | `[inline]`

Establish a new connection using the same parameters as an existing connection.

Parameters:

  | other | pre-existing connection to clone

## Member Function Documentation

bool mysqlpp::UnixDomainSocketConnection::connect | ( | const char * | path,
|  | const char * | db = `0`,
|  | const char * | user = `0`,
|  | const char * | password = `0` |
| ) |  |  |

Connect to database after object is created.

It's better to use the connect-on-create constructor if you can. See its documentation for the meaning of these parameters.

If you call this method on an object that is already connected to a database server, the previous connection is dropped and a new connection is established.

bool mysqlpp::UnixDomainSocketConnection::is_socket | ( | const char * | path,
|  | std::string * | error = `0` |
| ) |  |  | `[static]`

Check that the given path names a Unix domain socket and that we have read-write permission for it.

Parameters:

  | path | the filesystem path to the socket
  | error | on failure, reason is placed here; take default if you do not need a reason if it fails

Returns:
  false if address fails to pass sanity checks

The documentation for this class was generated from the following files:

- uds_connection.h
- uds_connection.cpp