| // Copyright 2021 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. |
| #pragma once |
| |
| // PW_MULTISINK_LOCK_INTERRUPT_SAFE controls whether an interrupt-safe lock is |
| // used when reading and writing from the underlying ring-buffer. This is |
| // enabled by default, using an interrupt spin-lock instead of a mutex. |
| // Disabling this alters the entry precondition of the multisink, requiring that |
| // it not be invoked from an interrupt context. |
| #if !defined(PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE) |
| #define PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE 1 |
| #endif // !defined(PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE) |
| |
| #if PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE |
| #include "pw_sync/interrupt_spin_lock.h" |
| #else // !PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE |
| #include "pw_sync/mutex.h" |
| #endif // PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE |
| |
| namespace pw { |
| namespace multisink { |
| |
| #if PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE |
| using LockType = pw::sync::InterruptSpinLock; |
| #else // !PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE |
| using LockType = pw::sync::Mutex; |
| #endif // PW_MULTISINK_CONFIG_LOCK_INTERRUPT_SAFE |
| |
| } // namespace multisink |
| } // namespace pw |
