ardupilot/libraries/AP_HAL_QURT/Semaphores.h

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#pragma once
#include <AP_HAL/AP_HAL_Boards.h>
#include <stdint.h>
#include <AP_HAL/Semaphores.h>
#include <pthread.h>
namespace QURT
{
class Semaphore : public AP_HAL::Semaphore
{
public:
friend class BinarySemaphore;
Semaphore();
bool give() override;
bool take(uint32_t timeout_ms) override;
bool take_nonblocking() override;
bool check_owner(void);
protected:
// qurt_mutex_t _lock;
pthread_mutex_t _lock;
pthread_t owner;
};
class BinarySemaphore : public AP_HAL::BinarySemaphore
{
public:
BinarySemaphore(bool initial_state=false);
bool wait(uint32_t timeout_us) override;
bool wait_blocking(void) override;
void signal(void) override;
protected:
Semaphore mtx;
pthread_cond_t cond;
bool pending;
};
}