Struct MemoryQuotaTracker

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pub struct MemoryQuotaTracker { /* private fields */ }
Expand description

Memory data tracker

Instance of the memory quota system.

Usually found as Arc<MemoryQuotaTracker>.

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impl MemoryQuotaTracker

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pub fn new<R: Spawn>( runtime: &R, config: Config, ) -> Result<Arc<Self>, StartupError>

Set up a new MemoryDataTracker

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pub fn reconfigure( &self, new_config: Config, how: Reconfigure, ) -> Result<(), ReconfigureError>

Reconfigure

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pub fn used_current_approx(&self) -> Result<usize, TrackerCorrupted>

Returns an estimate of the total memory use

The returned value is:

  • Approximate.
  • A snapshot as of the current moment (and there is no way to await changes)
  • Always usize::MAX for a no-op tracker
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pub fn new_account( self: &Arc<Self>, parent: Option<&Account>, ) -> Result<Account>

Make a new Account

To actually record memory usage, a Participant must be added.

At most call sites, take an Account rather than a MemoryQuotaTracker, and use Account::new_child(). That improves the ability to manage the hierarchy of Participants.

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pub fn new_noop() -> Arc<MemoryQuotaTracker>

Obtain a new MemoryQuotaTracker that doesn’t track anything and never reclaims

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impl Debug for MemoryQuotaTracker

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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