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timer: Add functions to initialize absolute timer structures.

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Otherwise there's no good way to create an absolute timer structure without
fiddling with its internal structure or assuming a zero initialized structure
has a value of zero.

BUG=chrome-os-partner:19420
TEST=Used in a new monotonic implementation on pit.
BRANCH=None

Change-Id: Iffe3b6b25ed7963fcfb66f749c531ea445ea4aeb
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/65301
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@google.com>
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Tested-by: Stefan Reinauer <reinauer@google.com>
This commit is contained in:
Gabe Black 2013-08-09 00:48:06 -07:00 • committed by ChromeBot
commit e2e5c1ef3b
1 changed files with 12 additions and 0 deletions
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12
src/include/timer.h
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@ -67,6 +67,18 @@ int timers_run(void);
* 0 returned on success, < 0 on error. */
int timer_sched_callback(struct timeout_callback *tocb, unsigned long us);
/* Set an absolute time to a number of microseconds. */
static inline void mono_time_set_usecs(struct mono_time *mt, long us)
{
mt->microseconds = us;
}
/* Set an absolute time to a number of milliseconds. */
static inline void mono_time_set_msecs(struct mono_time *mt, long ms)
{
mt->microseconds = ms * USECS_PER_MSEC;
}
/* Add microseconds to an absoute time. */
static inline void mono_time_add_usecs(struct mono_time *mt, long us)
{