|  | # Copyright 2020 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. | 
|  |  | 
|  | load( | 
|  | "//pw_build:pigweed.bzl", | 
|  | "pw_cc_facade", | 
|  | "pw_cc_library", | 
|  | "pw_cc_test", | 
|  | ) | 
|  |  | 
|  | package(default_visibility = ["//visibility:public"]) | 
|  |  | 
|  | licenses(["notice"])  # Apache License 2.0 | 
|  |  | 
|  | pw_cc_library( | 
|  | name = "epoch", | 
|  | hdrs = [ | 
|  | "public/pw_chrono/epoch.h", | 
|  | ], | 
|  | includes = ["public"], | 
|  | ) | 
|  |  | 
|  | pw_cc_facade( | 
|  | name = "system_clock_facade", | 
|  | hdrs = [ | 
|  | "public/pw_chrono/internal/system_clock_macros.h", | 
|  | "public/pw_chrono/system_clock.h", | 
|  | ], | 
|  | includes = ["public"], | 
|  | deps = [ | 
|  | ":epoch", | 
|  | "//pw_preprocessor", | 
|  | ], | 
|  | ) | 
|  |  | 
|  | pw_cc_library( | 
|  | name = "system_clock", | 
|  | srcs = [ | 
|  | "system_clock.cc", | 
|  | ], | 
|  | deps = [ | 
|  | ":system_clock_facade", | 
|  | "@pigweed_config//:pw_chrono_backend", | 
|  | ], | 
|  | ) | 
|  |  | 
|  | pw_cc_library( | 
|  | name = "backend_multiplexer", | 
|  | visibility = ["@pigweed_config//:__pkg__"], | 
|  | deps = select({ | 
|  | "//pw_build/constraints/rtos:freertos": ["//pw_chrono_freertos:system_clock"], | 
|  | "//pw_build/constraints/rtos:embos": ["//pw_chrono_embos:system_clock"], | 
|  | "//pw_build/constraints/rtos:threadx": ["//pw_chrono_threadx:system_clock"], | 
|  | "//conditions:default": ["//pw_chrono_stl:system_clock"], | 
|  | }), | 
|  | ) | 
|  |  | 
|  | pw_cc_library( | 
|  | name = "simulated_system_clock", | 
|  | hdrs = [ | 
|  | "public/pw_chrono/simulated_system_clock.h", | 
|  | ], | 
|  | deps = [ | 
|  | ":system_clock", | 
|  | "//pw_sync:interrupt_spin_lock", | 
|  | ], | 
|  | ) | 
|  |  | 
|  | pw_cc_test( | 
|  | name = "simulated_system_clock_test", | 
|  | srcs = [ | 
|  | "simulated_system_clock_test.cc", | 
|  | ], | 
|  | deps = [ | 
|  | ":simulated_system_clock", | 
|  | "//pw_unit_test", | 
|  | ], | 
|  | ) | 
|  |  | 
|  | pw_cc_test( | 
|  | name = "system_clock_facade_test", | 
|  | srcs = [ | 
|  | "system_clock_facade_test.cc", | 
|  | "system_clock_facade_test_c.c", | 
|  | ], | 
|  | deps = [ | 
|  | ":system_clock", | 
|  | "//pw_preprocessor", | 
|  | "//pw_unit_test", | 
|  | ], | 
|  | ) |