<?xml version="1.0" encoding="ANSI_X3.4-1968" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>struct hrtimer</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="Linux Device Drivers" /><link rel="up" href="ch01s05.html" title="High-resolution timers" /><link rel="prev" href="API-ktime-to-timespec-cond.html" title="ktime_to_timespec_cond" /><link rel="next" href="API-struct-hrtimer-sleeper.html" title="struct hrtimer_sleeper" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">struct hrtimer</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ktime-to-timespec-cond.html">Prev</a> </td><th width="60%" align="center">High-resolution timers</th><td width="20%" align="right"> <a accesskey="n" href="API-struct-hrtimer-sleeper.html">Next</a></td></tr></table><hr /></div><div class="refentry"><a id="API-struct-hrtimer"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct hrtimer —
the basic hrtimer structure
</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting">
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
}; </pre></div><div class="refsect1"><a id="idm140404967860288"></a><h2>Members</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">node</span></dt><dd><p>
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.
</p></dd><dt><span class="term">_softexpires</span></dt><dd><p>
the absolute earliest expiry time of the hrtimer.
The time which was given as expiry time when the timer
was armed.
</p></dd><dt><span class="term">function</span></dt><dd><p>
timer expiry callback function
</p></dd><dt><span class="term">base</span></dt><dd><p>
pointer to the timer base (per cpu and per clock)
</p></dd><dt><span class="term">state</span></dt><dd><p>
state information (See bit values above)
</p></dd><dt><span class="term">start_pid</span></dt><dd><p>
timer statistics field to store the pid of the task which
started the timer
</p></dd><dt><span class="term">start_site</span></dt><dd><p>
timer statistics field to store the site where the timer
was started
</p></dd><dt><span class="term">start_comm[16]</span></dt><dd><p>
timer statistics field to store the name of the process which
started the timer
</p></dd></dl></div></div><div class="refsect1"><a id="idm140404967847680"></a><h2>Description</h2><p>
The hrtimer structure must be initialized by <code class="function">hrtimer_init</code>
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-ktime-to-timespec-cond.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch01s05.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-struct-hrtimer-sleeper.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">ktime_to_timespec_cond</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">struct hrtimer_sleeper</span></td></tr></table></div></body></html>
distrib
>
Fedora
>
18
>
x86_64
>
media
>
updates
>
by-pkgid
>
1a595394b241504ff370a8d12ebfcea7
>
files
>
1513
