ardupilot/libraries/AP_HAL_AVR_SITL/Scheduler.h

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#ifndef __AP_HAL_SITL_SCHEDULER_H__
#define __AP_HAL_SITL_SCHEDULER_H__
#include <AP_HAL.h>
#if CONFIG_HAL_BOARD == HAL_BOARD_AVR_SITL
#include "AP_HAL_AVR_SITL_Namespace.h"
#include <sys/time.h>
#define SITL_SCHEDULER_MAX_TIMER_PROCS 4
/* Scheduler implementation: */
class AVR_SITL::SITLScheduler : public AP_HAL::Scheduler {
public:
SITLScheduler();
/* AP_HAL::Scheduler methods */
void init(void *unused);
void delay(uint16_t ms);
uint32_t millis();
uint32_t micros();
void delay_microseconds(uint16_t us);
void register_delay_callback(AP_HAL::Proc, uint16_t min_time_ms);
void register_timer_process(AP_HAL::TimedProc);
void register_io_process(AP_HAL::TimedProc);
void suspend_timer_procs();
void resume_timer_procs();
bool in_timerprocess();
void register_timer_failsafe(AP_HAL::TimedProc, uint32_t period_us);
bool system_initializing();
void system_initialized();
void reboot();
void panic(const prog_char_t *errormsg);
bool interrupts_are_blocked(void) { return _nested_atomic_ctr != 0; }
void sitl_begin_atomic() { _nested_atomic_ctr++; }
void sitl_end_atomic();
// callable from interrupt handler
static uint32_t _micros();
static void timer_event() { _run_timer_procs(true); _run_io_procs(true); }
private:
uint8_t _nested_atomic_ctr;
AP_HAL::Proc _delay_cb;
uint16_t _min_delay_cb_ms;
static struct timeval _sketch_start_time;
static AP_HAL::TimedProc _failsafe;
static void _run_timer_procs(bool called_from_isr);
static void _run_io_procs(bool called_from_isr);
static volatile bool _timer_suspended;
static volatile bool _timer_event_missed;
static AP_HAL::TimedProc _timer_proc[SITL_SCHEDULER_MAX_TIMER_PROCS];
static AP_HAL::TimedProc _io_proc[SITL_SCHEDULER_MAX_TIMER_PROCS];
static uint8_t _num_timer_procs;
static uint8_t _num_io_procs;
static bool _in_timer_proc;
static bool _in_io_proc;
bool _initialized;
};
#endif
#endif // __AP_HAL_SITL_SCHEDULER_H__