pw_multibuf/backend.cmake

# Copyright 2026 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
include_guard(GLOBAL)

include($ENV{PW_ROOT}/pw_build/pigweed.cmake)

# Backend for the pw_multibuf module.
pw_add_backend_variable(pw_multibuf_BACKEND
  DEFAULT_BACKEND
    pw_multibuf.v1
)

# Backend for `allocator_async`. This is kept as a separate facade to keep its
# dep on pw_thread via pw_async2 from propagating to incompatible target
# platforms, e.g. fuchsia, stm32xx, etc.
pw_add_backend_variable(pw_multibuf_allocator_async_BACKEND
  DEFAULT_BACKEND
    pw_multibuf.v1.allocator_async_backend
)