diff options
| -rw-r--r-- | src/pulsecore/core-rtclock.c | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/src/pulsecore/core-rtclock.c b/src/pulsecore/core-rtclock.c index 1420470a..4fe0a47b 100644 --- a/src/pulsecore/core-rtclock.c +++ b/src/pulsecore/core-rtclock.c @@ -33,6 +33,12 @@ #include <sys/prctl.h> #endif +#ifdef OS_IS_DARWIN +#include <CoreServices/CoreServices.h> +#include <mach/mach.h> +#include <mach/mach_time.h> +#endif + #include <pulse/timeval.h> #include <pulsecore/macro.h> #include <pulsecore/core-error.h> @@ -47,7 +53,8 @@ pa_usec_t pa_rtclock_age(const struct timeval *tv) { } struct timeval *pa_rtclock_get(struct timeval *tv) { -#ifdef HAVE_CLOCK_GETTIME + +#if defined(HAVE_CLOCK_GETTIME) struct timespec ts; #ifdef CLOCK_MONOTONIC @@ -59,7 +66,7 @@ struct timeval *pa_rtclock_get(struct timeval *tv) { no_monotonic = TRUE; if (no_monotonic) -#endif +#endif /* CLOCK_MONOTONIC */ pa_assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); pa_assert(tv); @@ -69,7 +76,30 @@ struct timeval *pa_rtclock_get(struct timeval *tv) { return tv; -#else /* HAVE_CLOCK_GETTIME */ +#elif defined(OS_IS_DARWIN) + static mach_timebase_info_data_t tbi; + uint64_t nticks; + uint64_t time_nsec; + + /* Refer Apple ADC QA1398 + Also: http://devworld.apple.com/documentation/Darwin/Conceptual/KernelProgramming/services/services.html + + Note: argument is timespec NOT timeval (timespec uses nsec, timeval uses usec) + */ + + /* try and be a mite efficient - maybe I should keep the N/D as a float !? */ + if (tbi.denom == 0) + mach_timebase_info(&tbi); + + nticks = mach_absolute_time(); + time_nsec = nticks * tbi.numer / tbi.denom; // see above + + tv->tv_sec = time_nsec / PA_NSEC_PER_SEC; + tv->tv_usec = time_nsec / PA_NSEC_PER_USEC; + + return tv; + +#else /* OS_IS_DARWIN */ return pa_gettimeofday(tv); @@ -77,19 +107,30 @@ struct timeval *pa_rtclock_get(struct timeval *tv) { } pa_bool_t pa_rtclock_hrtimer(void) { -#ifdef HAVE_CLOCK_GETTIME + +#if defined(HAVE_CLOCK_GETTIME) struct timespec ts; #ifdef CLOCK_MONOTONIC + if (clock_getres(CLOCK_MONOTONIC, &ts) >= 0) return ts.tv_sec == 0 && ts.tv_nsec <= (long) (PA_HRTIMER_THRESHOLD_USEC*PA_NSEC_PER_USEC); -#endif +#endif /* CLOCK_MONOTONIC */ pa_assert_se(clock_getres(CLOCK_REALTIME, &ts) == 0); return ts.tv_sec == 0 && ts.tv_nsec <= (long) (PA_HRTIMER_THRESHOLD_USEC*PA_NSEC_PER_USEC); -#else /* HAVE_CLOCK_GETTIME */ +#elif defined (OS_IS_DARWIN) + mach_timebase_info_data_t tbi; + uint64_t time_nsec; + + mach_timebase_info(&tbi); + /* nsec = nticks * (N/D) - we want 1 tick == resolution !? */ + time_nsec = tbi.numer / tbi.denom; + return time_nsec <= (long) (PA_HRTIMER_THRESHOLD_USEC*PA_NSEC_PER_USEC); + +#else /* OS_IS_DARWIN */ return FALSE; #endif @@ -98,6 +139,7 @@ pa_bool_t pa_rtclock_hrtimer(void) { #define TIMER_SLACK_NS (int) ((500 * PA_NSEC_PER_USEC)) void pa_rtclock_hrtimer_enable(void) { + #ifdef PR_SET_TIMERSLACK int slack_ns; |