#pragma once #include #if CONFIG_HAL_BOARD == HAL_BOARD_VRBRAIN #include "AP_HAL_VRBRAIN.h" #include class VRBRAIN::Semaphore : public AP_HAL::Semaphore { public: Semaphore() { pthread_mutex_init(&_lock, NULL); } bool give(); bool take(uint32_t timeout_ms); bool take_nonblocking(); private: pthread_mutex_t _lock; }; #endif // CONFIG_HAL_BOARD