Cargo Features

[dependencies]
rarena-allocator = { version = "0.4.21", default-features = false, features = ["std", "alloc", "memmap", "loom", "tracing"] }
default = std

The std feature is set by default whenever rarena-allocator is added without default-features = false somewhere in the dependency tree.

std default loom? memmap? = byteorder

Enables either, std of dbutils and std of rustix

rustix:

This enables use of std. Disabling this enables #![no_std], and requires Rust 1.64 or newer.

alloc
memmap = fs4, memmap2, std

Enables std of bitflags

Affects allocator::Allocator.flush, allocator::Allocator.flush_async, allocator::Allocator.flush_range, allocator::Allocator.flush_async_range, allocator::Allocator.flush_header, allocator::Allocator.flush_async_header, allocator::Allocator.flush_header_and_range, allocator::Allocator.flush_async_header_and_range, allocator::Allocator.is_map, allocator::Allocator.is_map_anon, allocator::Allocator.is_map_file, allocator::Allocator.lock_exclusive, allocator::Allocator.lock_shared, allocator::Allocator.path, allocator::Allocator.mlock, allocator::Allocator.munlock, rarena-allocator::Buffer.flush, rarena-allocator::Buffer.flush_async, sealed::PathRefCounter.new, sealed::PathRefCounter.as_path

loom = std

Enables loom, loom of crossbeam-utils

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

byteorder std
fs4 memmap?

Enables fs4 ^0.11

memmap2 memmap?
tracing implicit feature

Enables tracing

tracing:

Application-level tracing for Rust

rustix not wasm win std