debug_helpers.h File Reference

Shared deadline and scheduling helpers for diagnostic reports. More...

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Functions
uint64_t	debug_report_deadline_after (uint64_t now, uint64_t delay_ns)
void	debug_report_schedule (mutex_t *mutex, cond_t *condition, uint64_t *deadline, uint64_t delay_ns)

Detailed Description

Shared deadline and scheduling helpers for diagnostic reports.

Definition in file debug_helpers.h.

Function Documentation

debug_report_deadline_after()

uint64_t debug_report_deadline_after	(	uint64_t	now,
		uint64_t	delay_ns )

Compute a monotonic deadline, saturating on overflow.

Definition at line 4 of file debug_helpers.c.

                                                                      {
  return delay_ns > UINT64_MAX - now ? UINT64_MAX : now + delay_ns;
}

Referenced by debug_report_schedule(), debug_stats_poll(), and debug_stats_set_memory_report_interval().

debug_report_schedule()

void debug_report_schedule	(	mutex_t *	mutex,
		cond_t *	condition,
		uint64_t *	deadline,
		uint64_t	delay_ns )

Schedule a report under the initialized worker mutex and wake its condition. Duplicate requests for the same report retain the earliest deadline.

Definition at line 8 of file debug_helpers.c.

                                                                                                     {
  uint64_t requested = debug_report_deadline_after(time_get_ns(), delay_ns);
  mutex_lock(mutex);
  if (!*deadline || requested < *deadline)
    *deadline = requested;
  cond_signal(condition);
  mutex_unlock(mutex);
}

References debug_report_deadline_after().

Referenced by debug_errno_print_delayed().