1 // Copyright 2020 The Pigweed Authors
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
7 // https://www.apache.org/licenses/LICENSE-2.0
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
16 namespace pw::interrupt {
18 // Returns true if currently executing within an interrupt service routine
19 // handling an IRQ or NMI.
20 bool InInterruptContext();
22 } // namespace pw::interrupt
24 // The backend can opt to include an inlined implementation of the following:
25 // bool InInterruptContext();
26 #if __has_include("pw_interrupt_backend/context_inline.h")
27 #include "pw_interrupt_backend/context_inline.h"
28 #endif // __has_include("pw_interrupt_backend/context_inline.h")