# Fuchsia Rust Crates This document describes the most common Fuchsia rust crates. To see a full list of all available rust crates, see the **Crates** section in the sidebar of [the rustdoc index page](https://fuchsia.dev/go/rustdoc/). ## General - [fuchsia](https://fuchsia-docs.firebaseapp.com/rust/fuchsia/index.html) Macros for creating Fuchsia components and tests. These macros work on Fuchsia, and also on host with some limitations (that are called out where they exist). - [fuchsia_component](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_component/index.html) Support library for implementing Fuchsia components. - [fuchsia_component_test](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_component_test/index.html) The Realm Builder library exists to facilitate integration testing of components by allowing for the run-time construction of realms and mocked components specific to individual test cases. For more information on how to use this library, see [Realm Builder](https://fuchsia.dev/docs/development/testing/components/realm_builder#rust) - [fuchsia_async/](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_async/index.html) Futures executor and asynchronous primitives (Channel, Socket, Fifo, etc.). This crate works on Fuchsia and host Operating Systems and allows you to use Overnet for RCS and ffx. - [async_utils](https://fuchsia-docs.firebaseapp.com/rust/async_utils/index.html) Provides utilities for working with asynchronous code. - [async_helpers](https://fuchsia-docs.firebaseapp.com/rust/async_helpers/index.html) This library contains helpers crates to handle things such as hanging gets. - [zx](https://fuchsia-docs.firebaseapp.com/rust/zx/index.html) Rust language bindings for Zircon kernel syscalls. - [fdio](https://fuchsia-docs.firebaseapp.com/rust/fdio/index.html) Wrapper over fdio library. - [fuchsia_runtime](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_runtime/index.html) Type-safe bindings for Fuchsia-specific `libc` functionality. This crate is a minimal extension on top of the `fuchsia-zircon` crate, which provides bindings to the Zircon kernel's syscalls, but does not depend on functionality from `libc`. - [mapped_vmo](https://fuchsia-docs.firebaseapp.com/rust/mapped_vmo/index.html) A convenience crate for Zircon VMO objects mapped into memory. - [mem_util](https://fuchsia-docs.firebaseapp.com/rust/mem_util/index.html) Utilities for working with the `fuchsia.mem` FIDL library. This crate is not very widely used. - [shared_buffer](https://fuchsia-docs.firebaseapp.com/rust/shared_buffer/index.html) Utilities for safely operating on memory shared between untrusting processes. - [fidl](https://fuchsia-docs.firebaseapp.com/rust/fidl/index.html) Library and runtime for FIDL bindings. For more information about FIDL, see [FIDL Overview](https://fuchsia.dev/docs/concepts/fidl/overview) - [flyweights](https://fuchsia-docs.firebaseapp.com/rust/flyweights/index.html) Types implementing the flyweight pattern for reusing object allocations. ## Packages - [fuchsia_archive](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_archive/index.html) Work with Fuchsia Archives (FARs) - [fuchsia_pkg](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_pkg/index.html) Library that lets you work with Fuchsia packages which are a hierarchical collection of files that provides one or more programs, components or services to a Fuchsia system. - [fuchsia-merkle](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_merkle/index.html) Protect and verify data blobs using [Merkle Trees](https://fuchsia.dev/docs/concepts/security/merkleroot) ## Testing - [diagnostics_log](https://fuchsia-docs.firebaseapp.com/rust/diagnostics_log/index.html) Rust interface to the Fuchsia Logging System. This library isn't Fuchsia-specific and can be used on the host. - [diagnostics_reader](https://fuchsia-docs.firebaseapp.com/rust/diagnostics_reader/index.html) Utility to let you read metrics and logs. This is useful for creating tests. - [fuchsia_trace](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_trace/index.html) A safe Rust interface to Fuchsia's tracing interface. - [fuchsia_criterion](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_criterion/index.html) Thin wrapper crate around the [Criterion benchmark suite](https://github.com/bheisler/criterion.rs). This generates benchmark metrics for infrastructure from criterion benches. - [fuchsiaperf](https://fuchsia-docs.firebaseapp.com/rust/fuchsiaperf/index.html) A library that defines the JSON schema for benchmark metrics. - [fuchsia_inspect](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_inspect/index.html) Components in Fuchsia may expose structured information about themselves conforming to the Inspect API. This crate is the core library for writing inspect data in Rust components. For a comprehensive guide on how to start using `inspect`, please refer to the [codelab](https://fuchsia.dev/docs//development/diagnostics/inspect/codelab). - [fuchsia_inspect_contrib](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_inspect_contrib/index.html) This library is intended for contributions to the inspect library from clients. ## Graphics - [fuchsia-framebuffer](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_framebuffer/index.html) Configure, create and use FrameBuffers in Fuchsia. - [fuchsia-scenic](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_scenic/index.html) Rust interface to Scenic, the Fuchsia compositor ## Storage - [storage](https://cs.opensource.google/fuchsia/fuchsia/+/main:/src/storage/) Bindings and protocol for serving filesystems on the Fuchsia platform - [vfs](https://fuchsia-docs.firebaseapp.com/rust/vfs/index.html) A library to create "pseudo" file systems. These file systems are backed by in process callbacks. Examples are: component configuration, debug information or statistics. - [storage-manager](https://fuchsia-docs.firebaseapp.com/rust/storage_manager/index.html) A library to access a file system directory. - [fxfs](https://fuchsia-docs.firebaseapp.com/rust/fxfs/index.html) A library to us Fxfs which is a log-structured filesystem for Fuchsia. - [fuchsia-fs](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_fs/index.html) Wrapper library for fuchsia.io operations, such as reading and writing files, reading directory entries, and watching directories. ## Networking - [fuchsia_hyper](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_hyper/index.html) A library that lets you create a Fuchsia-compatible hyper client for making HTTP requests. - [fuchsia_bluetooth](https://fuchsia-docs.firebaseapp.com/rust/fuchsia_bluetooth/index.html) Utilities for Bluetooth development. ## Miscellaneous - [mundane](https://fuchsia-docs.firebaseapp.com/rust/mundane/index.html) A Rust crypto library backed by BoringSSL [](https://issues.fuchsia.dev/issues/new?component=1439230&template=1881640&description=Issue+on:+https://fuchsia.dev/docs/reference/rust/crates.md "Report a bug or suggest improvements on this page") [](https://cs.opensource.google/fuchsia/fuchsia/+/main:docs/reference/rust/crates.md "View the source code of this page") [](https://ci.android.com/edit?repo=fuchsia/fuchsia/main&file=docs/reference/rust/crates.md&cloneRepo=fuchsia/fuchsia:refs/heads/main&fullPath=fuchsia/docs/reference/rust/crates.md "Edit the source code of this page")