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MySQLDaemon Class Reference
[MySQL C++ Wrappers]

#include <mysqlDaemon.hpp>

Inheritance diagram for MySQLDaemon:

[legend]

Public Member Functions
	MySQLDaemon (const std::string &_datadir, const std::string &_socket) throw (Error)
virtual	~MySQLDaemon (void)
bool	running (void)
const std::string	getLog (void)
Static Public Member Functions
static std::string	create (const std::string &_datadir, const std::string &_socket) throw (Error)
Protected Member Functions
void	readPending (void)
Protected Attributes
int	pipes [2]
pid_t	pid
std::ostringstream	log

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Detailed Description

Definition at line 27 of file mysqlDaemon.hpp.

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Constructor & Destructor Documentation

MySQLDaemon::MySQLDaemon	(	const std::string &	_datadir,
		const std::string &	_socket
	)			throw (Error)

Constructor.

Parameters:

	_datadir	Directory of database server.
	_socket	The database-server should use this file-socket.

MySQLDaemon::~MySQLDaemon

(

void

)

[virtual]

Definition at line 67 of file mysqlDaemon.cpp.

References pid.

{
  kill( pid, SIGQUIT );// SIGTERM required on older systems.
  int status;
  waitpid( pid, &status, 0 );
}

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Member Function Documentation

bool MySQLDaemon::running

(

void

)

Definition at line 74 of file mysqlDaemon.cpp.

References pid.

{
  int status;
  return waitpid( pid, &status, WNOHANG ) == 0;
}

const string MySQLDaemon::getLog

(

void

)

Definition at line 80 of file mysqlDaemon.cpp.

References log, and readPending().

{
  readPending();
  return log.str();
}

static std::string MySQLDaemon::create	(	const std::string &	_datadir,
		const std::string &	_socket
	)			throw (Error) [static]

Create database. This method calls 'mysql_install_db' to create the database directories.

Parameters:

	_datadir	Directory for database.
	_socket	Temporary socket required by some distributions.

Returns:

Output generated by mysql_install_db.

void MySQLDaemon::readPending

(

void

)

[protected]

Definition at line 106 of file mysqlDaemon.cpp.

References log, and pipes.

Referenced by getLog().

{
  int filedes = pipes[0];

  fd_set set;
  struct timeval timeout;

  FD_ZERO(&set);
  FD_SET (filedes, &set);

  timeout.tv_sec = 0;
  timeout.tv_usec = 0;

  while( true ) {

    int count;
    ioctl( filedes, FIONREAD, &count );
    if ( count == 0 )
      break;
    shared_array< char > buffer( new char[ count + 1 ] );
    read( filedes, buffer.get(), count );
    buffer[ count ] = 0;
    log << buffer.get();

  };
}

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Field Documentation

int MySQLDaemon::pipes[2] [protected]

Definition at line 52 of file mysqlDaemon.hpp.

Referenced by readPending().

pid_t MySQLDaemon::pid [protected]

Definition at line 54 of file mysqlDaemon.hpp.

Referenced by running(), and ~MySQLDaemon().

std::ostringstream MySQLDaemon::log [protected]

Definition at line 56 of file mysqlDaemon.hpp.

Referenced by getLog(), and readPending().

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

• mysqlDaemon.hpp
• mysqlDaemon.cpp

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