Files
Allen Hill 5208e083f3 Redesign (simplify) top-level avclan interface to use expected/nullable unique_ptr
- Peripheral::read/send now return `expected<unique_ptr<Frame>, Error>`
for a unified success/error interface.
- Peripheral::route returns `expected<unique_ptr<Frame>, Error>` to
distinguish intent: (intentional) non-response vs unable to respond
- Other functions with optional message semantics (handle,poll,react)
return a unique_ptr whose ownership-state indicates response intent
(i.e. send new message)

Bundled necessary changes:
- Switch Frame allocation from global to local (enabled via member
  function new/delete)
- Add new header-library tl::expected to shim avr-libstdcpp

Unrelated: Defensive `continue` added after `route`, to reduce Bus
activity check latency

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-17 14:47:47 -07:00

19 lines
817 B
CMake

# Idempotent patch driver for FetchContent PATCH_COMMAND steps.
#
# Usage: cmake -DGIT_EXECUTABLE=<git> -DPATCH_FILE=<patch> -P apply-patch.cmake
# (run with CWD = the populated source directory, as PATCH_COMMAND does).
#
# FetchContent re-runs PATCH_COMMAND after its update step on reconfigure, so a
# bare `git apply` fails the second time around. Skip if the patch is already
# applied (the reverse-apply dry run succeeds); otherwise apply it for real.
execute_process(
COMMAND "${GIT_EXECUTABLE}" apply --reverse --check --ignore-whitespace
"${PATCH_FILE}"
RESULT_VARIABLE _already_applied
OUTPUT_QUIET ERROR_QUIET)
if(NOT _already_applied EQUAL 0)
execute_process(
COMMAND "${GIT_EXECUTABLE}" apply --ignore-whitespace "${PATCH_FILE}"
COMMAND_ERROR_IS_FATAL ANY)
endif()