Class: MemWatcher

MemWatcher


new MemWatcher()

Manages watching memory limits and attempts to mitigate issues that may arise as a result.
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Extends

Members


<private, constant> _frequency :number

How often to check memory usage.
Type:
  • number
Default Value:
  • 5 Minutes
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<private, nullable> _interval :number

Created interval for checking memory usage.
Type:
  • number
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<private, constant> _threshold :number

Amount of memory in bytes away from the limit to force this process to suicide.
Type:
  • number
Default Value:
  • 100000000 bytes (100MB)
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<nullable> bot :SpikeyBot

The parent SpikeyBot instance. Defaults to required cache value for autocompletion, updates to current reference at init.
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client :Discord~Client

The current bot client. Defaults to require cache value for editor autocompletion, updates to current reference at init.
Type:
  • Discord~Client
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command :Command

The command object for registering command listeners. Defaults to require cache value for editor autocompletion, updates to current reference at init.
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<constant> commit :string

The commit at HEAD at the time this module was loaded. Essentially the version of this submodule.
Type:
  • string
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common :Common

The common object. Defaults to require cache value for editor autocompletion, updates to current reference at init.
Type:
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Discord :Discord

The current Discord object instance of the bot. Defaults to require cache value for editor autocompletion, updates to current reference at init.
Type:
  • Discord
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<abstract> helpMessage :undefined|string|Discord~EmbedBuilder

The help message to show the user in the main help message.
Type:
  • undefined | string | Discord~EmbedBuilder
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<protected, readonly> initialized :boolean

Has this subModule been initialized yet (Has begin() been called).
Type:
  • boolean
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<constant> loadTime :number

The time at which this module was loaded for use in checking if the module needs to be reloaded because the file has been modified since loading.
Type:
  • number
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<protected> myName :string

The name of this submodule. Used for differentiating in the log. Should be defined before begin().
Type:
  • string
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<abstract> postPrefix :string

The postfix for the global prefix for this subModule. Must be defined before begin(), otherwise it is ignored.
Type:
  • string
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Methods


<private> _commandSweep(msg)

Trigger sweeping of users from cache.
Parameters:
Name Type Description
msg Discord~Message Message that triggered command.
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Listens to Events:
  • Command#event:sweep

begin(Discord, client, command, common, bot)

Initialize this submodule.
Parameters:
Name Type Description
Discord Discord The Discord object for the API library.
client Discord~Client The client that represents this bot.
command Command The command instance in which to register command listeners.
common Common Class storing common functions.
bot SpikeyBot The parent SpikeyBot instance.
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check()

Check the current memory usage. Called in the interval, but can also be fired manually.
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<protected> debug(msg)

Log using common.logDebug, but automatically set name.
Parameters:
Name Type Description
msg string The message to log.
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end()

Trigger subModule to shutdown and get ready for process terminating.
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<protected> error(msg)

Log using common.error, but automatically set name.
Parameters:
Name Type Description
msg string The message to log.
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<protected> initialize()

The function called at the end of begin() for further initialization specific to the subModule. Must be defined before begin() is called.
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<protected> log(msg)

Log using common.log, but automatically set name.
Parameters:
Name Type Description
msg string The message to log.
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<abstract> reloadable()

Check if this module is in a state that is ready to be reloaded. If false is returned, this module should not be unloaded and doing such may risk putting the module into an uncontrollable state. This is different from unloadable, which checks if this module can be stopped completely, this checks if the module can be stopped and restarted.
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See:
  • SubModule~unloadable
Returns:
True if can be reloaded, false if cannot.
Type
boolean

save( [opt])

Saves all data to files necessary for saving current state.
Parameters:
Name Type Argument Default Description
opt string <optional>
'sync' Can be 'async', otherwise defaults to synchronous.
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<protected> shutdown()

Shutdown and disable this submodule. Removes all event listeners.
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suicide()

Attempts to force the bot to die because we are probably about to run out of memory and are about to crash anyways.
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sweepUsers()

Cause stale users to be purged from cache.
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<abstract> unloadable()

Check if this module is in a state that is ready to be unloaded. If false is returned, this module should not be unloaded and doing such may risk putting the module into an uncontrollable state.
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See:
  • SubModule~reloadable
Returns:
True if can be unloaded, false if cannot.
Type
boolean

<protected> warn(msg)

Log using common.logWarning, but automatically set name.
Parameters:
Name Type Description
msg string The message to log.
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