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Test Your Knowledge in Computers #499
Difficulty: Medium
The term 'self-documenting' code means the compiler has advanced A.I. which documents what each line of code actually does.
True or False?
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ktime_to_ns(9) [centos man page]

KTIME_TO_NS(9)							   Driver Basics						    KTIME_TO_NS(9)

ktime_to_ns - convert a ktime_t variable to scalar nanoseconds SYNOPSIS
s64 ktime_to_ns(const ktime_t kt); ARGUMENTS
kt the ktime_t variable to convert DESCRIPTION
Returns the scalar nanoseconds representation of kt COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 KTIME_TO_NS(9)

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struct_hrtimer - the basic hrtimer structure SYNOPSIS
struct hrtimer { struct timerqueue_node node; ktime_t _softexpires; enum hrtimer_restart (* function) (struct hrtimer *); struct hrtimer_clock_base * base; unsigned long state; #ifdef CONFIG_TIMER_STATS int start_pid; void * start_site; char start_comm[16]; #endif }; MEMBERS
node timerqueue node, which also manages node.expires, the absolute expiry time in the hrtimers internal representation. The time is related to the clock on which the timer is based. Is setup by adding slack to the _softexpires value. For non range timers identical to _softexpires. _softexpires the absolute earliest expiry time of the hrtimer. The time which was given as expiry time when the timer was armed. function timer expiry callback function base pointer to the timer base (per cpu and per clock) state state information (See bit values above) start_pid timer statistics field to store the pid of the task which started the timer start_site timer statistics field to store the site where the timer was started start_comm[16] timer statistics field to store the name of the process which started the timer DESCRIPTION
The hrtimer structure must be initialized by hrtimer_init COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 STRUCT HRTIMER(9)

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