DatabaseLogger Class Reference

Database logger - logs to the MythTV database. More...

#include <logging.h>

Inheritance diagram for DatabaseLogger:

List of all members.

Public Member Functions
	DatabaseLogger (char *table)
	DatabaseLogger constructor.
	~DatabaseLogger ()
	DatabaseLogger deconstructor.
bool	logmsg (LoggingItem *item)
	Process a log message, queuing it for logging to the database.
void	reopen (void)
	Reopen the log file to facilitate log rolling.
virtual void	stopDatabaseAccess (void)
	Stop logging to the database and wait for the thread to stop.
Protected Member Functions
bool	logqmsg (MSqlQuery &query, LoggingItem *item)
	Actually insert a log message from the queue into the database.
void	prepare (MSqlQuery &query)
	Prepare the database query for use, and bind constant values to it.
Private Member Functions
bool	isDatabaseReady (void)
	Check if the database is ready for use.
bool	tableExists (const QString &table)
	Checks whether table exists and is ready for writing.
Private Attributes
DBLoggerThread *	m_thread
	The database queue handling thread.
QString	m_query
	The database query to insert log messages.
bool	m_opened
	The database is opened.
bool	m_loggingTableExists
	The desired logging table exists.
bool	m_disabled
	DB logging is temporarily disabled.
QTime	m_disabledTime
	Time when the DB logging was disabled.
QTime	m_errorLoggingTime
	Time when DB error logging was last done.
Static Private Attributes
static const int	kMinDisabledTime = 1000
	Minimum time to disable DB logging (in ms).
Friends
class	DBLoggerThread

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Detailed Description

Database logger - logs to the MythTV database.

Definition at line 86 of file libmythbase/logging.h.

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Constructor & Destructor Documentation

DatabaseLogger::DatabaseLogger

(

char *

table

)

DatabaseLogger constructor.

Parameters:

table

C-string of the database table to log to

Definition at line 412 of file logging.cpp.

DatabaseLogger::~DatabaseLogger

(

)

DatabaseLogger deconstructor.

Definition at line 435 of file logging.cpp.

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Member Function Documentation

bool DatabaseLogger::logmsg

(

LoggingItem *

item

)

[virtual]

Process a log message, queuing it for logging to the database.

Parameters:

item

LoggingItem containing the log message to process

Implements LoggerBase.

Definition at line 456 of file logging.cpp.

void DatabaseLogger::reopen

(

void

)

[inline, virtual]

Reopen the log file to facilitate log rolling.

Implements LoggerBase.

Definition at line 92 of file libmythbase/logging.h.

void DatabaseLogger::stopDatabaseAccess

(

void

)

[virtual]

Stop logging to the database and wait for the thread to stop.

Reimplemented from LoggerBase.

Definition at line 443 of file logging.cpp.

Referenced by ~DatabaseLogger().

bool DatabaseLogger::logqmsg	(	MSqlQuery &	query,
		LoggingItem *	item
	)			[protected]

Actually insert a log message from the queue into the database.

Parameters:

	query	The database insert query to use
	item	LoggingItem containing the log message to insert

Definition at line 496 of file logging.cpp.

Referenced by DBLoggerThread::run().

void DatabaseLogger::prepare

(

MSqlQuery &

query

)

[protected]

Prepare the database query for use, and bind constant values to it.

Parameters:

query

The database query to prepare

Definition at line 537 of file logging.cpp.

Referenced by DBLoggerThread::run().

bool DatabaseLogger::isDatabaseReady

(

void

)

[private]

Check if the database is ready for use.

Returns:

true when database is ready, false otherwise

Definition at line 547 of file logging.cpp.

Referenced by logmsg(), and DBLoggerThread::run().

bool DatabaseLogger::tableExists

(

const QString &

table

)

[private]

Checks whether table exists and is ready for writing.

Parameters:

table

The name of the table to check (without schema name)

Returns:

true if table exists in schema or false if not

Definition at line 567 of file logging.cpp.

Referenced by isDatabaseReady().

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Friends And Related Function Documentation

friend class DBLoggerThread [friend]

Definition at line 87 of file libmythbase/logging.h.

Referenced by DatabaseLogger().

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Member Data Documentation

DBLoggerThread* DatabaseLogger::m_thread [private]

The database queue handling thread.

Definition at line 101 of file libmythbase/logging.h.

Referenced by DatabaseLogger(), logmsg(), and stopDatabaseAccess().

QString DatabaseLogger::m_query [private]

The database query to insert log messages.

Definition at line 102 of file libmythbase/logging.h.

Referenced by DatabaseLogger(), and prepare().

bool DatabaseLogger::m_opened [private]

The database is opened.

Definition at line 103 of file libmythbase/logging.h.

Referenced by DatabaseLogger().

bool DatabaseLogger::m_loggingTableExists [private]

The desired logging table exists.

Definition at line 104 of file libmythbase/logging.h.

Referenced by isDatabaseReady().

bool DatabaseLogger::m_disabled [private]

DB logging is temporarily disabled.

Definition at line 105 of file libmythbase/logging.h.

Referenced by DatabaseLogger(), and logmsg().

QTime DatabaseLogger::m_disabledTime [private]

Time when the DB logging was disabled.

Definition at line 106 of file libmythbase/logging.h.

Referenced by logmsg().

QTime DatabaseLogger::m_errorLoggingTime [private]

Time when DB error logging was last done.

Definition at line 107 of file libmythbase/logging.h.

Referenced by logqmsg().

const int DatabaseLogger::kMinDisabledTime = 1000 [static, private]

Minimum time to disable DB logging (in ms).

Definition at line 108 of file libmythbase/logging.h.

Referenced by logmsg().

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

• libmythbase/logging.h
• logging.cpp