1STRUCT HRTIMER(9)                Driver Basics               STRUCT HRTIMER(9)
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NAME

6       struct_hrtimer - the basic hrtimer structure
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SYNOPSIS

9       struct hrtimer {
10         struct rb_node node;
11         ktime_t _expires;
12         ktime_t _softexpires;
13         enum hrtimer_restart        (* function) (struct hrtimer *);
14         struct hrtimer_clock_base * base;
15         unsigned long state;
16       #ifdef CONFIG_TIMER_STATS
17         int start_pid;
18         void * start_site;
19         char start_comm[16];
20       #endif
21       };
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MEMBERS

24       node
25           red black tree node for time ordered insertion
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27       _expires
28           the absolute expiry time in the hrtimers internal representation.
29           The time is related to the clock on which the timer is based. Is
30           setup by adding slack to the _softexpires value. For non range
31           timers identical to _softexpires.
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33       _softexpires
34           the absolute earliest expiry time of the hrtimer. The time which
35           was given as expiry time when the timer was armed.
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37       function
38           timer expiry callback function
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40       base
41           pointer to the timer base (per cpu and per clock)
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43       state
44           state information (See bit values above)
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46       start_pid
47           timer statistics field to store the pid of the task which started
48           the timer
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50       start_site
51           timer statistics field to store the site where the timer was
52           started
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54       start_comm[16]
55           timer statistics field to store the name of the process which
56           started the timer
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DESCRIPTION

59       The hrtimer structure must be initialized by hrtimer_init
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62Kernel Hackers Manual 2.6.         June 2019                 STRUCT HRTIMER(9)
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