ReopenableFilesApp

Constructors

this

this()

Constructor.

Members

Classes

SendingTask

class SendingTask

Task used to send command and confirm the response

Functions

run

int run(Arguments args, ConfigParser config)

Called after arguments and config file parsing.

Inherited Members

From DaemonApp

Arguments

alias Arguments = ocean.text.Arguments.Arguments

Undocumented in source.

ConfigParser

alias ConfigParser = ocean.util.config.ConfigParser.ConfigParser

Undocumented in source.

args

Arguments args;

Command line arguments used by the application.

args_ext

ArgumentsExt args_ext;

Command line arguments extension used by the application.

config

ConfigParser config;

Configuration parser to use to parse the configuration files.

config_ext

ConfigExt config_ext;

Configuration parsing extension instance.

log_ext

LogExt log_ext;

Logging extension instance.

ver

VersionInfo ver;

Version information.

ver_ext

VersionArgsExt ver_ext;

Version information extension.

stats_ext

StatsExt stats_ext;

Stats log extension -- TODO auto configured or what? Why public? getter for StatsLog instance?

timer_ext

TimerExt timer_ext;

Timer handler extension.

signal_ext

SignalExt signal_ext;

Signal handler extension. Directs registered signals to the onSignal() method.

reopenable_files_ext

ReopenableFilesExt reopenable_files_ext;

Reopenable files extension. Hooks into the stats, log, and signal extentions, and automatically reopens logfiles upon receipt of the SIGHUP signal (presumably sent from logrotate).

pidlock_ext

PidLockExt pidlock_ext;

PidLock extension. Tries to create and lock the pid lock file (if specified in the config), ensuring that only one application instance per pidlock may exist.

unix_socket_ext

UnixSocketExt unix_socket_ext;

Unix socket extension to register commands for the application to respond to.

task_ext

TaskExt task_ext;

Extension to start run method inside a task.

OptionalSettings

struct OptionalSettings

Struct containing optional constructor arguments. There are enough of these that handling them as default arguments to the ctor is cumbersome.

startEventHandling

void startEventHandling(EpollSelectDispatcher epoll)

This method must be called in order for signal and timer event handling to start being processed. As it registers clients (the stats timer and signal handler) with epoll which will always reregister themselves after firing, you should call this method when you are about to start your application's main event loop.

run

int run(istring[] args)

Run implementation that forwards to the abstract run(Arguments, ConfigParser).

run

int run(Arguments args, ConfigParser config)

This method must be implemented by subclasses to do the actual application work.

exit

void exit(int status, istring msg)

void exit(int status, istring msg, Logger logger)

Exit cleanly from the application, passing the specified return code to the OS and optionally printing the specified message to the console.

reportSystemStats

void reportSystemStats()

Collects CPU and memory stats and reports it to stats log. Should be called periodically (inside onStatsTimer).

collectSystemStats

void collectSystemStats(Collector prometheus_collector)

Collects CPU and memory stats for incoming prometheus' requests. Should be sent, as a callback, to the CollectorRegistry instance used in prometheus request listener.

reportGCStats

void reportGCStats()

Collects GC stats and reports them to stats log. Should be called periodically (inside onStatsTimer).

collectGCStats

void collectGCStats(Collector prometheus_collector)

Collects GC stats for incoming prometheus' requests. Should be sent, as a callback, to the CollectorRegistry instance used in prometheus request listener.

onStatsTimer

void onStatsTimer()

Called by the timer extension when the stats period fires. By default does nothing, but should be overridden to write the required stats.

onSignal

void onSignal(int signum)

ISignalExtExtension method default implementation.

setupArgs

void setupArgs(IApplication app, Arguments args)

preValidateArgs

void preValidateArgs(IApplication app, Arguments args)

validateArgs

cstring validateArgs(IApplication app, Arguments args)

processArgs

void processArgs(IApplication app, Arguments args)

IArgumentsExtExtension methods dummy implementation.

preParseConfig

void preParseConfig(IApplication app, ConfigParser config)

filterConfigFiles

istring[] filterConfigFiles(IApplication app, ConfigParser config, istring[] files)

processConfig

void processConfig(IApplication app, ConfigParser config)

IConfigExtExtension methods dummy implementation.

preConfigureLoggers

void preConfigureLoggers(IApplication app, ConfigParser config, bool loose_config_parsing, bool use_insert_appender)

postConfigureLoggers

void postConfigureLoggers(IApplication app, ConfigParser config, bool loose_config_parsing, bool use_insert_appender)

ILogExtExtension methods dummy implementation.

• ReopenableFilesApp

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