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58901934cd
Adds the first synchronization primitive to Pigweed: the pw::sync::SpinLock with integrated local interrupt masking. This also provides the first backend for the SpinLock facade backed by an STL implementation. Note that signals are considered "NMIs" while spin locks are only supported up to IRQs, ergo no local interrupt/signal masking is done in the STL implementation. Change-Id: I34204835c55e54597077d40665f61715964803f9 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/25802 Reviewed-by: Ewout van Bekkum <ewout@google.com> Reviewed-by: Wyatt Hepler <hepler@google.com> Reviewed-by: Keir Mierle <keir@google.com> Commit-Queue: Ewout van Bekkum <ewout@google.com>
51 lines
1.4 KiB
Plaintext
51 lines
1.4 KiB
Plaintext
# Copyright 2020 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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import("//build_overrides/pigweed.gni")
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import("$dir_pw_build/target_types.gni")
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import("$dir_pw_docgen/docs.gni")
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config("public_include_path") {
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include_dirs = [ "public" ]
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visibility = [ ":*" ]
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}
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config("backend_config") {
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include_dirs = [ "public_overrides" ]
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visibility = [ ":*" ]
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}
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# This target provides the backend for pw::sync::SpinLock.
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pw_source_set("spin_lock_backend") {
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public_configs = [
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":public_include_path",
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":backend_config",
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]
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public = [
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"public/pw_sync_stl/spin_lock_inline.h",
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"public/pw_sync_stl/spin_lock_native.h",
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"public_overrides/pw_sync_backend/spin_lock_inline.h",
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"public_overrides/pw_sync_backend/spin_lock_native.h",
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]
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public_deps = [
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"$dir_pw_sync:spin_lock.facade",
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"$dir_pw_sync:yield_core",
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]
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}
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pw_doc_group("docs") {
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sources = [ "docs.rst" ]
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}
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