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[V3,0/4] libgpiod: Add Rust bindings

Message ID cover.1639997241.git.viresh.kumar@linaro.org
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Series libgpiod: Add Rust bindings | expand

Message

Viresh Kumar Dec. 20, 2021, 11:11 a.m. UTC 
Here is another version of rust bindings for libgpiod v2.0, based of the
next/libgpiod-2.0.

I will be adding testing infrastructure later on, once other bindings are
converted to use gpiosim.

All the examples, including gpiomon, are tested now and work just fine.

V2->V3:
- Remove naming redundancy, users just need to do this now
  use libgpiod:{Chip, Direction, LineConfig} now (Bartosz);
- Fix lifetime issues between event-buffer and edge-event modules, the event
  buffer is released after the last edge-event reference is dropped (Bartosz).
- Allow edge-event to be copied, and freed later (Bartosz).
- Add two separate rust crates, sys and wrapper (Gerard).
- Null-terminate the strings passed to libgpiod (Wedson).
- Drop unnecessary checks to validate string returned from chip:name/label/path.
- Fix SAFETY comments (Wedson).
- Drop unnecessary clone() instances (Bartosz).

V1->V2:
- Added examples (I tested everything except gpiomon.rs, didn't have right
  hardware/mock device to test).
- Build rust bindings as part of Make, update documentation.

Thanks.

--
Viresh

Viresh Kumar (4):
  libgpiod: Add libgpiod-sys rust crate
  libgpiod: Add rust wrapper crate
  libgpiod: Add rust examples
  libgpiod: Integrate building of rust bindings with make

 .gitignore                            |   5 +
 README                                |   8 +-
 TODO                                  |   8 -
 bindings/Makefile.am                  |   6 +
 bindings/rust/Cargo.toml              |  11 +
 bindings/rust/Makefile.am             |  27 ++
 bindings/rust/examples/gpiodetect.rs  |  37 +++
 bindings/rust/examples/gpiofind.rs    |  42 +++
 bindings/rust/examples/gpioget.rs     |  42 +++
 bindings/rust/examples/gpioinfo.rs    |  89 ++++++
 bindings/rust/examples/gpiomon.rs     |  68 +++++
 bindings/rust/examples/gpioset.rs     |  52 ++++
 bindings/rust/libgpiod-sys/Cargo.toml |  12 +
 bindings/rust/libgpiod-sys/build.rs   |  60 ++++
 bindings/rust/libgpiod-sys/src/lib.rs |  16 ++
 bindings/rust/libgpiod-sys/wrapper.h  |   2 +
 bindings/rust/src/chip.rs             | 183 ++++++++++++
 bindings/rust/src/edge_event.rs       | 103 +++++++
 bindings/rust/src/event_buffer.rs     |  87 ++++++
 bindings/rust/src/info_event.rs       |  68 +++++
 bindings/rust/src/lib.rs              | 280 ++++++++++++++++++
 bindings/rust/src/line_config.rs      | 391 ++++++++++++++++++++++++++
 bindings/rust/src/line_info.rs        | 182 ++++++++++++
 bindings/rust/src/line_request.rs     | 214 ++++++++++++++
 bindings/rust/src/request_config.rs   | 119 ++++++++
 configure.ac                          |  16 ++
 26 files changed, 2117 insertions(+), 11 deletions(-)
 create mode 100644 bindings/rust/Cargo.toml
 create mode 100644 bindings/rust/Makefile.am
 create mode 100644 bindings/rust/examples/gpiodetect.rs
 create mode 100644 bindings/rust/examples/gpiofind.rs
 create mode 100644 bindings/rust/examples/gpioget.rs
 create mode 100644 bindings/rust/examples/gpioinfo.rs
 create mode 100644 bindings/rust/examples/gpiomon.rs
 create mode 100644 bindings/rust/examples/gpioset.rs
 create mode 100644 bindings/rust/libgpiod-sys/Cargo.toml
 create mode 100644 bindings/rust/libgpiod-sys/build.rs
 create mode 100644 bindings/rust/libgpiod-sys/src/lib.rs
 create mode 100644 bindings/rust/libgpiod-sys/wrapper.h
 create mode 100644 bindings/rust/src/chip.rs
 create mode 100644 bindings/rust/src/edge_event.rs
 create mode 100644 bindings/rust/src/event_buffer.rs
 create mode 100644 bindings/rust/src/info_event.rs
 create mode 100644 bindings/rust/src/lib.rs
 create mode 100644 bindings/rust/src/line_config.rs
 create mode 100644 bindings/rust/src/line_info.rs
 create mode 100644 bindings/rust/src/line_request.rs
 create mode 100644 bindings/rust/src/request_config.rs