ardupilot/libraries/AP_HAL_SITL/Scheduler.h

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#pragma once
#include <AP_HAL/AP_HAL.h>
#if CONFIG_HAL_BOARD == HAL_BOARD_SITL
#include "AP_HAL_SITL_Namespace.h"
#include <sys/time.h>
#define SITL_SCHEDULER_MAX_TIMER_PROCS 4
/* Scheduler implementation: */
class HALSITL::Scheduler : public AP_HAL::Scheduler {
public:
explicit Scheduler(SITL_State *sitlState);
static Scheduler *from(AP_HAL::Scheduler *scheduler) {
return static_cast<HALSITL::Scheduler*>(scheduler);
}
/* AP_HAL::Scheduler methods */
void init();
void delay(uint16_t ms);
void delay_microseconds(uint16_t us);
void register_timer_process(AP_HAL::MemberProc);
void register_io_process(AP_HAL::MemberProc);
void register_timer_failsafe(AP_HAL::Proc, uint32_t period_us);
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bool in_main_thread() const override { return !_in_timer_proc && !_in_io_proc; };
void system_initialized();
void reboot(bool hold_in_bootloader);
bool interrupts_are_blocked(void) {
return _nested_atomic_ctr != 0;
}
void sitl_begin_atomic() {
_nested_atomic_ctr++;
}
void sitl_end_atomic();
static void timer_event() {
_run_timer_procs();
_run_io_procs();
}
uint64_t stopped_clock_usec() const { return _stopped_clock_usec; }
static void _run_io_procs();
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static bool _should_reboot;
/*
create a new thread
*/
bool thread_create(AP_HAL::MemberProc, const char *name,
uint32_t stack_size, priority_base base, int8_t priority) override;
private:
SITL_State *_sitlState;
uint8_t _nested_atomic_ctr;
static AP_HAL::Proc _failsafe;
static void _run_timer_procs();
static volatile bool _timer_event_missed;
static AP_HAL::MemberProc _timer_proc[SITL_SCHEDULER_MAX_TIMER_PROCS];
static AP_HAL::MemberProc _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;
void stop_clock(uint64_t time_usec);
static void *thread_create_trampoline(void *ctx);
bool _initialized;
uint64_t _stopped_clock_usec;
uint64_t _last_io_run;
};
#endif // CONFIG_HAL_BOARD