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Mark time conversion functions as constexpr 

Change-Id: I753c6975a8e1d78978c31175b2e1868eb374c442
This commit is contained in:
Michael Wright 2015-04-20 15:06:01 +01:00
parent a4802ca08b
commit 65e93c3b6f
1 changed files with 17 additions and 15 deletions
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32
include/utils/Timers.h
View File

@ -24,6 +24,8 @@
#include <sys/types.h>
#include <sys/time.h>
#include <utils/Compat.h>
// ------------------------------------------------------------------
// C API
@ -33,46 +35,46 @@ extern "C" {
typedef int64_t nsecs_t; // nano-seconds
static inline nsecs_t seconds_to_nanoseconds(nsecs_t secs)
static CONSTEXPR inline nsecs_t seconds_to_nanoseconds(nsecs_t secs)
{
return secs*1000000000;
}
static inline nsecs_t milliseconds_to_nanoseconds(nsecs_t secs)
static CONSTEXPR inline nsecs_t milliseconds_to_nanoseconds(nsecs_t secs)
{
return secs*1000000;
}
static inline nsecs_t microseconds_to_nanoseconds(nsecs_t secs)
static CONSTEXPR inline nsecs_t microseconds_to_nanoseconds(nsecs_t secs)
{
return secs*1000;
}
static inline nsecs_t nanoseconds_to_seconds(nsecs_t secs)
static CONSTEXPR inline nsecs_t nanoseconds_to_seconds(nsecs_t secs)
{
return secs/1000000000;
}
static inline nsecs_t nanoseconds_to_milliseconds(nsecs_t secs)
static CONSTEXPR inline nsecs_t nanoseconds_to_milliseconds(nsecs_t secs)
{
return secs/1000000;
}
static inline nsecs_t nanoseconds_to_microseconds(nsecs_t secs)
static CONSTEXPR inline nsecs_t nanoseconds_to_microseconds(nsecs_t secs)
{
return secs/1000;
}
static inline nsecs_t s2ns(nsecs_t v) {return seconds_to_nanoseconds(v);}
static inline nsecs_t ms2ns(nsecs_t v) {return milliseconds_to_nanoseconds(v);}
static inline nsecs_t us2ns(nsecs_t v) {return microseconds_to_nanoseconds(v);}
static inline nsecs_t ns2s(nsecs_t v) {return nanoseconds_to_seconds(v);}
static inline nsecs_t ns2ms(nsecs_t v) {return nanoseconds_to_milliseconds(v);}
static inline nsecs_t ns2us(nsecs_t v) {return nanoseconds_to_microseconds(v);}
static CONSTEXPR inline nsecs_t s2ns(nsecs_t v) {return seconds_to_nanoseconds(v);}
static CONSTEXPR inline nsecs_t ms2ns(nsecs_t v) {return milliseconds_to_nanoseconds(v);}
static CONSTEXPR inline nsecs_t us2ns(nsecs_t v) {return microseconds_to_nanoseconds(v);}
static CONSTEXPR inline nsecs_t ns2s(nsecs_t v) {return nanoseconds_to_seconds(v);}
static CONSTEXPR inline nsecs_t ns2ms(nsecs_t v) {return nanoseconds_to_milliseconds(v);}
static CONSTEXPR inline nsecs_t ns2us(nsecs_t v) {return nanoseconds_to_microseconds(v);}
static inline nsecs_t seconds(nsecs_t v) { return s2ns(v); }
static inline nsecs_t milliseconds(nsecs_t v) { return ms2ns(v); }
static inline nsecs_t microseconds(nsecs_t v) { return us2ns(v); }
static CONSTEXPR inline nsecs_t seconds(nsecs_t v) { return s2ns(v); }
static CONSTEXPR inline nsecs_t milliseconds(nsecs_t v) { return ms2ns(v); }
static CONSTEXPR inline nsecs_t microseconds(nsecs_t v) { return us2ns(v); }
enum {
SYSTEM_TIME_REALTIME = 0, // system-wide realtime clock