diff options
Diffstat (limited to 'src/lisp/ao_lisp_os.h')
| -rw-r--r-- | src/lisp/ao_lisp_os.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/lisp/ao_lisp_os.h b/src/lisp/ao_lisp_os.h index 5fa3686b..4285cb8c 100644 --- a/src/lisp/ao_lisp_os.h +++ b/src/lisp/ao_lisp_os.h @@ -41,13 +41,23 @@ ao_lisp_os_led(int led) printf("leds set to 0x%x\n", led); } +#define AO_LISP_JIFFIES_PER_SECOND 100 + static inline void -ao_lisp_os_delay(int delay) +ao_lisp_os_delay(int jiffies) { struct timespec ts = { - .tv_sec = delay / 1000, - .tv_nsec = (delay % 1000) * 1000000, + .tv_sec = jiffies / AO_LISP_JIFFIES_PER_SECOND, + .tv_nsec = (jiffies % AO_LISP_JIFFIES_PER_SECOND) * (1000000000L / AO_LISP_JIFFIES_PER_SECOND) }; nanosleep(&ts, NULL); } + +static inline int +ao_lisp_os_jiffy(void) +{ + struct timespec tp; + clock_gettime(CLOCK_MONOTONIC, &tp); + return tp.tv_sec * AO_LISP_JIFFIES_PER_SECOND + (tp.tv_nsec / (1000000000L / AO_LISP_JIFFIES_PER_SECOND)); +} #endif |