1 // Copyright 2020 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #pragma once 15 16 namespace pw::interrupt { 17 18 /// @brief Checks if the currently executing code is within an interrupt service 19 /// routine handling an interrupt request (IRQ) or non-maskable interrupt (NMI). 20 /// 21 /// @returns `true` if the the currently executing code is in an interrupt 22 /// context. `false` if not. 23 bool InInterruptContext(); 24 25 } // namespace pw::interrupt 26 27 // The backend can opt to include an inlined implementation of the following: 28 // bool InInterruptContext(); 29 #if __has_include("pw_interrupt_backend/context_inline.h") 30 #include "pw_interrupt_backend/context_inline.h" 31 #endif // __has_include("pw_interrupt_backend/context_inline.h") 32