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android / platform / external / rust / crates / pdl-compiler / 72b395d57032cef1f4e9a8deee6a6c98d42331e1
commit72b395d57032cef1f4e9a8deee6a6c98d42331e1[log] [tgz]
authorIvan Lozano <[email protected]>Wed Jul 17 19:18:05 2024 +0000
committerIvan Lozano <[email protected]>Wed Jul 17 19:18:05 2024 +0000
tree307bb74a61071fad3abf113d20eca4ec792044d3
parentbf618f8ed0f040e6917af22441eedfa877874361 [diff]
Update module with host_cross_supported

Bug: 353739440

Test: m rust
Change-Id: I163d39374808a46c22396b713bfc7cc34abe12e1
2 files changed
tree: 307bb74a61071fad3abf113d20eca4ec792044d3
  1. patches/
  2. scripts/
  3. src/
  4. tests/
  5. .cargo_vcs_info.json
  6. .gitignore
  7. Android.bp
  8. Cargo.toml
  9. Cargo.toml.orig
  10. cargo2android_toplevel.bp
  11. cargo_embargo.json
  12. LICENSE
  13. METADATA
  14. MODULE_LICENSE_APACHE2
  15. OWNERS
  16. README.md
README.md

Packet Description Language (PDL)

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PDL is a domain specific language for writing the definition of binary protocol packets. Parsing and validating packets from raw bytes is tedious and error prone in any language. PDL generates memory safe and tailored backends for multiple target languages:

- Rust
- C++
- Python

Historically PDL was developed as part of the Android Bluetooth stack (bluetooth_packetgen) as a way to generate the parser and serializer for Bluetooth packets, and reduce the number of memory safety issues that come with manipulating and validating raw data.

How to use PDL

  1. Write the protocol definition
  2. cargo run my-protocol.pdl --output-format rust > my-protocol.rs

Language specific instructions are provided for all supported backends:

  1. Rust generated code guide
  2. Python generated code guide
  3. C++ generated code guide

Supported Features

Full reference documentation

  • Scalar values
  • Enumerators
  • Arrays
  • Optional fields
  • Nested packets
  • Conditional packet derivation
  • Custom field definitions

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