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MemoryOverhead

noxu_dbi

Struct MemoryOverhead 

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pub struct MemoryOverhead;
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Estimated object overheads in bytes (Rust equivalents of constants). These are approximate sizes used for memory accounting.

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impl MemoryOverhead

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pub const LOCKIMPL_OVERHEAD: i64 = 96

Overhead for a LockImpl.

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pub const THINLOCKIMPL_OVERHEAD: i64 = 32

Overhead for a ThinLockImpl.

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pub const LOCKINFO_OVERHEAD: i64 = 32

Overhead for a LockInfo.

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pub const HASHMAP_ENTRY_OVERHEAD: i64 = 48

Overhead for a HashMap entry.

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pub const LONG_OVERHEAD: i64 = 16

Overhead for a boxed i64.

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pub const IN_OVERHEAD: i64 = 400

Overhead for an IN node (approximate).

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pub const BIN_OVERHEAD: i64 = 500

Overhead for a BIN node.

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pub const LN_OVERHEAD: i64 = 48

Overhead for an LN.

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pub const TXN_OVERHEAD: i64 = 200

Overhead for a Txn.

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pub const BASICLOCKER_OVERHEAD: i64 = 80

Overhead for a BasicLocker.

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fn borrow_mut(&mut self) -> &mut T

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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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