log4cplus_SysLogAppender(3)

log4cplus::SysLogAppender(3) log4cplus log4cplus::SysLogAppender(3)

NAME

log4cplus::SysLogAppender - Appends log events to a file.

SYNOPSIS

#include <syslogappender.h>

Inherits log4cplus::Appender, and log4cplus::helpers::IConnectorThreadClient.

Public Types


enum RemoteSyslogType { RSTUdp, RSTTcp }
Remote syslog IP protocol type.

Public Member Functions


SysLogAppender (const tstring &ident)
SysLogAppender (const tstring &ident, const tstring &host, int port=514, const tstring &facility=tstring(), RemoteSyslogType remoteSyslogType=RSTUdp, bool ipv6=false)
SysLogAppender (const log4cplus::helpers::Properties &properties)
virtual ~SysLogAppender ()
virtual void close ()
Release any resources allocated within the appender such as file handles, network connections, etc.

Public Member Functions inherited from log4cplus::Appender
Appender ()
Appender (const log4cplus::helpers::Properties &properties)
virtual ~Appender ()
void destructorImpl ()
This function is for derived appenders to call from their destructors. bool isClosed () const
Check if this appender is in closed state. void syncDoAppend (const log4cplus::spi::InternalLoggingEvent &event)
This method performs threshold checks and invokes filters before delegating actual logging to the subclasses specific append method. void asyncDoAppend (const log4cplus::spi::InternalLoggingEvent &event)
This method performs book keeping related to asynchronous logging and executes syncDoAppend() to do the actual logging. void doAppend (const log4cplus::spi::InternalLoggingEvent &event)
This function checks async flag. virtual log4cplus::tstring getName ()
Get the name of this appender. virtual void setName (const log4cplus::tstring &name)
Set the name of this appender. virtual void setErrorHandler (std::unique_ptr< ErrorHandler > eh)
Set the ErrorHandler for this Appender. virtual ErrorHandler * getErrorHandler ()
Return the currently set ErrorHandler for this Appender. virtual void setLayout (std::unique_ptr< Layout > layout)
Set the layout for this appender. virtual Layout * getLayout ()
Returns the layout of this appender. void setFilter (log4cplus::spi::FilterPtr f)
Set the filter chain on this Appender. log4cplus::spi::FilterPtr getFilter () const
Get the filter chain on this Appender. void addFilter (log4cplus::spi::FilterPtr f)
Add filter at the end of the filters chain. void addFilter (std::function< spi::FilterResult(const log4cplus::spi::InternalLoggingEvent &)>)
Add filter at the end of the filters chain. LogLevel getThreshold () const
Returns this appenders threshold LogLevel. void setThreshold (LogLevel th)
Set the threshold LogLevel. bool isAsSevereAsThreshold (LogLevel ll) const
Check whether the message LogLevel is below the appender's threshold. void waitToFinishAsyncLogging ()
This method waits for all events that are being asynchronously logged to finish.

Public Member Functions inherited from log4cplus::helpers::SharedObject
void addReference () const LOG4CPLUS_NOEXCEPT
void removeReference () const

Protected Types


typedef void(SysLogAppender::* AppendFuncType) (const spi::InternalLoggingEvent &)

Protected Member Functions


virtual int getSysLogLevel (const LogLevel &ll) const
virtual void append (const spi::InternalLoggingEvent &event)
Subclasses of Appender should implement this method to perform actual logging. void appendLocal (const spi::InternalLoggingEvent &event)
Local syslog (served by syslog()) worker function. void appendRemote (const spi::InternalLoggingEvent &event)
Remote syslog worker function. void initConnector ()
void openSocket ()
virtual thread::Mutex const & ctcGetAccessMutex () const
virtual helpers::Socket & ctcGetSocket ()
virtual helpers::Socket ctcConnect ()
virtual void ctcSetConnected ()
Sets connected flag to true in ConnectorThread's client.

Protected Member Functions inherited from log4cplus::Appender
tstring & formatEvent (const log4cplus::spi::InternalLoggingEvent &event) const

Protected Member Functions inherited from log4cplus::helpers::SharedObject
SharedObject ()
SharedObject (const SharedObject &)
SharedObject (SharedObject &&)
virtual ~SharedObject ()
SharedObject & operator= (const SharedObject &) LOG4CPLUS_NOEXCEPT
SharedObject & operator= (SharedObject &&) LOG4CPLUS_NOEXCEPT

Protected Member Functions inherited from log4cplus::helpers::IConnectorThreadClient
virtual ~IConnectorThreadClient ()

Protected Attributes


tstring ident
int facility
AppendFuncType appendFunc
tstring host
int port
RemoteSyslogType remoteSyslogType
helpers::Socket syslogSocket
bool connected
bool ipv6 = false
helpers::SharedObjectPtr< helpers::ConnectorThread > connector

Protected Attributes inherited from log4cplus::Appender
std::unique_ptr< Layout > layout
The layout variable does not need to be set if the appender implementation has its own layout. log4cplus::tstring name
Appenders are named. LogLevel threshold
There is no LogLevel threshold filtering by default. log4cplus::spi::FilterPtr filter
The first filter in the filter chain. std::unique_ptr< ErrorHandler > errorHandler
It is assumed and enforced that errorHandler is never null. std::unique_ptr< helpers::LockFile > lockFile
Optional system wide synchronization lock. bool useLockFile
Use lock file for inter-process synchronization of access to log file. bool async
Asynchronous append. std::atomic< std::size_t > in_flight
std::mutex in_flight_mutex
std::condition_variable in_flight_condition
bool closed
Is this appender closed?

Static Protected Attributes


static tstring const remoteTimeFormat

Additional Inherited Members

Public Attributes inherited from log4cplus::helpers::SharedObject
thread::Mutex access_mutex

Detailed Description

Appends log events to a file.

Properties

ident
First argument to openlog(), a string that will be prepended to every message.
facility
Facility is used in combination with syslog level in first argument to syslog(). It can be one of the supported facility names (case insensitive), e.g. auth, cron, kern, mail, news etc.
host
Destination syslog host. When this property is specified, messages are sent using UDP to destination host, otherwise messages are logged to local syslog.
port
Destination port of syslog service on host specified by the host property. The default value is port 514.
udp
When the syslog is remote, this property picks the IP protocol. When the value is true, UDP is used. When the value is false, TCP is used. The default value is true.
IPv6
Boolean value specifying whether to use IPv6 (true) or IPv4 (false). Default value is false.

Note

Messages sent to remote syslog using UDP are conforming to RFC5424. Messages sent to remote syslog using TCP are using octet counting as described in RFC6587.

Definition at line 80 of file syslogappender.h.

Member Typedef Documentation

typedef void(SysLogAppender::* log4cplus::SysLogAppender::AppendFuncType) (const spi::InternalLoggingEvent &) [protected]

Definition at line 123 of file syslogappender.h.

Member Enumeration Documentation

enum log4cplus::SysLogAppender::RemoteSyslogType

Remote syslog IP protocol type.

Enumerator

RSTUdp
RSTTcp

Definition at line 88 of file syslogappender.h.

Constructor & Destructor Documentation

log4cplus::SysLogAppender::SysLogAppender (const tstring & ident)

log4cplus::SysLogAppender::SysLogAppender (const tstring & ident, const tstring & host, int port = 514, const tstring & facility = tstring(), RemoteSyslogType remoteSyslogType = RSTUdp, bool ipv6 = false)

log4cplus::SysLogAppender::SysLogAppender (const log4cplus::helpers::Properties & properties)

virtual log4cplus::SysLogAppender::~SysLogAppender () [virtual]

Member Function Documentation

virtual void log4cplus::SysLogAppender::append (const spi::InternalLoggingEvent & event) [protected], [virtual]

Subclasses of Appender should implement this method to perform actual logging.

See also

doAppend method.

Implements log4cplus::Appender.

void log4cplus::SysLogAppender::appendLocal (const spi::InternalLoggingEvent & event) [protected]

Local syslog (served by syslog()) worker function.

void log4cplus::SysLogAppender::appendRemote (const spi::InternalLoggingEvent & event) [protected]

Remote syslog worker function.

virtual void log4cplus::SysLogAppender::close () [virtual]

Release any resources allocated within the appender such as file handles, network connections, etc. It is a programming error to append to a closed appender.

Implements log4cplus::Appender.

virtual helpers::Socket log4cplus::SysLogAppender::ctcConnect () [protected], [virtual]

Returns

ConnectorThread client's function returning connected socket.

Implements log4cplus::helpers::IConnectorThreadClient.

virtual thread::Mutex const & log4cplus::SysLogAppender::ctcGetAccessMutex () const [protected], [virtual]

Returns

Mutex for synchronization between ConnectorThread and its client object. This is usually SharedObject::access_mutex.

Implements log4cplus::helpers::IConnectorThreadClient.

virtual helpers::Socket & log4cplus::SysLogAppender::ctcGetSocket () [protected], [virtual]

Returns

Socket variable in ConnectorThread client to maintain.

Implements log4cplus::helpers::IConnectorThreadClient.

virtual void log4cplus::SysLogAppender::ctcSetConnected () [protected], [virtual]

Sets connected flag to true in ConnectorThread's client.

Implements log4cplus::helpers::IConnectorThreadClient.

virtual int log4cplus::SysLogAppender::getSysLogLevel (const LogLevel & ll) const [protected], [virtual]

void log4cplus::SysLogAppender::initConnector () [protected]

void log4cplus::SysLogAppender::openSocket () [protected]

Member Data Documentation

AppendFuncType log4cplus::SysLogAppender::appendFunc [protected]

Definition at line 125 of file syslogappender.h.

bool log4cplus::SysLogAppender::connected [protected]

Definition at line 131 of file syslogappender.h.

helpers::SharedObjectPtr<helpers::ConnectorThread> log4cplus::SysLogAppender::connector [protected]

Definition at line 145 of file syslogappender.h.

int log4cplus::SysLogAppender::facility [protected]

Definition at line 121 of file syslogappender.h.

tstring log4cplus::SysLogAppender::host [protected]

Definition at line 127 of file syslogappender.h.

tstring log4cplus::SysLogAppender::ident [protected]

Definition at line 120 of file syslogappender.h.

bool log4cplus::SysLogAppender::ipv6 = false [protected]

Definition at line 132 of file syslogappender.h.

int log4cplus::SysLogAppender::port [protected]

Definition at line 128 of file syslogappender.h.

RemoteSyslogType log4cplus::SysLogAppender::remoteSyslogType [protected]

Definition at line 129 of file syslogappender.h.

tstring const log4cplus::SysLogAppender::remoteTimeFormat [static], [protected]

Definition at line 134 of file syslogappender.h.

helpers::Socket log4cplus::SysLogAppender::syslogSocket [protected]

Definition at line 130 of file syslogappender.h.

Author

Generated automatically by Doxygen for log4cplus from the source code.

Mon Jun 5 2023 21:46:10 Version 2.0.7