Crate arrow_buffer 

Low-level buffer abstractions for Apache Arrow Rust

Byte Storage abstractions

• MutableBuffer: Raw memory buffer that can be mutated and grown
• Buffer: Immutable buffer that is shared across threads

Typed Abstractions

There are also several wrappers over Buffer with methods for easier manipulation:

• BooleanBuffer: Bitmasks (buffer of packed bits)
• NullBuffer: Arrow null (validity) bitmaps (BooleanBuffer with extra utilities)
• ScalarBuffer<T>: Typed buffer for primitive types (e.g., i32, f64)
• OffsetBuffer<O>: Offsets used in variable-length types (e.g., strings, lists)
• RunEndBuffer<E>: Run-ends used in run-encoded encoded data

Re-exports

pub use buffer::*;

pub use builder::*;

Modules

alloc

Defines the low-level Allocation API for shared memory regions

bit_chunk_iterator

Types for iterating over bitmasks in 64-bit chunks

bit_iterator

Types for iterating over packed bitmasks

bit_mask

Utils for working with packed bit masks

bit_util

Utils for working with bits

buffer

Types of shared memory region

builder

Buffer builders

Structs

IntervalDayTime

Value of an IntervalDayTime array

IntervalMonthDayNano

Value of an IntervalMonthDayNano array

OverflowError

An arithmetic overflow.

TrackingMemoryPoolpool

A simple MemoryPool that reports the total memory usage

i256

A signed 256-bit integer

Traits

ArrowNativeType

Trait expressing a Rust type that has the same in-memory representation as Arrow.

MemoryPoolpool

A pool of memory that can be reserved and released.

MemoryReservationpool

A memory reservation within a MemoryPool that is freed on drop

ToByteSlice

Allows conversion from supported Arrow types to a byte slice.