MemoryQuotaTracker

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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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 104 bytes