diff options
Diffstat (limited to 'pjlib/src/pj/os_timestamp_common.c')
-rw-r--r-- | pjlib/src/pj/os_timestamp_common.c | 270 |
1 files changed, 135 insertions, 135 deletions
diff --git a/pjlib/src/pj/os_timestamp_common.c b/pjlib/src/pj/os_timestamp_common.c index cab43f89..4dc410f3 100644 --- a/pjlib/src/pj/os_timestamp_common.c +++ b/pjlib/src/pj/os_timestamp_common.c @@ -1,135 +1,135 @@ -/* $Id$ */
-/*
- * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <pj/os.h>
-#include <pj/compat/high_precision.h>
-
-#if defined(PJ_HAS_HIGH_RES_TIMER) && PJ_HAS_HIGH_RES_TIMER != 0
-
-#define U32MAX (0xFFFFFFFFUL)
-#define NANOSEC (1000000000UL)
-#define USEC (1000000UL)
-#define MSEC (1000)
-
-static pj_highprec_t get_elapsed( const pj_timestamp *start,
- const pj_timestamp *stop )
-{
- pj_highprec_t elapsed_hi, elapsed_lo;
-
- elapsed_hi = stop->u32.hi - start->u32.hi;
- elapsed_lo = stop->u32.lo - start->u32.lo;
-
- /* elapsed_hi = elapsed_hi * U32MAX */
- pj_highprec_mul(elapsed_hi, U32MAX);
-
- return elapsed_hi + elapsed_lo;
-}
-
-static pj_highprec_t elapsed_usec( const pj_timestamp *start,
- const pj_timestamp *stop )
-{
- pj_timestamp ts_freq;
- pj_highprec_t freq, elapsed;
-
- if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS)
- return 0;
-
- /* Convert frequency timestamp */
- freq = ts_freq.u32.hi;
- pj_highprec_mul(freq, U32MAX);
- freq += ts_freq.u32.lo;
-
- /* Avoid division by zero. */
- if (freq == 0) freq = 1;
-
- /* Get elapsed time in cycles. */
- elapsed = get_elapsed(start, stop);
-
- /* usec = elapsed * USEC / freq */
- pj_highprec_mul(elapsed, USEC);
- pj_highprec_div(elapsed, freq);
-
- return elapsed;
-}
-
-PJ_DEF(pj_uint32_t) pj_elapsed_nanosec( const pj_timestamp *start,
- const pj_timestamp *stop )
-{
- pj_timestamp ts_freq;
- pj_highprec_t freq, elapsed;
-
- if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS)
- return 0;
-
- /* Convert frequency timestamp */
- freq = ts_freq.u32.hi;
- pj_highprec_mul(freq, U32MAX);
- freq += ts_freq.u32.lo;
-
- /* Avoid division by zero. */
- if (freq == 0) freq = 1;
-
- /* Get elapsed time in cycles. */
- elapsed = get_elapsed(start, stop);
-
- /* usec = elapsed * USEC / freq */
- pj_highprec_mul(elapsed, NANOSEC);
- pj_highprec_div(elapsed, freq);
-
- return (pj_uint32_t)elapsed;
-}
-
-PJ_DEF(pj_uint32_t) pj_elapsed_usec( const pj_timestamp *start,
- const pj_timestamp *stop )
-{
- return (pj_uint32_t)elapsed_usec(start, stop);
-}
-
-PJ_DEF(pj_time_val) pj_elapsed_time( const pj_timestamp *start,
- const pj_timestamp *stop )
-{
- pj_highprec_t elapsed = elapsed_usec(start, stop);
- pj_time_val tv_elapsed;
-
- if (PJ_HIGHPREC_VALUE_IS_ZERO(elapsed)) {
- tv_elapsed.sec = tv_elapsed.msec = 0;
- return tv_elapsed;
- } else {
- pj_highprec_t sec, msec;
-
- sec = elapsed;
- pj_highprec_div(sec, USEC);
- tv_elapsed.sec = (long)sec;
-
- msec = elapsed;
- pj_highprec_mod(msec, USEC);
- pj_highprec_div(msec, 1000);
- tv_elapsed.msec = (long)msec;
-
- return tv_elapsed;
- }
-}
-
-PJ_DEF(pj_uint32_t) pj_elapsed_cycle( const pj_timestamp *start,
- const pj_timestamp *stop )
-{
- return stop->u32.lo - start->u32.lo;
-}
-
-#endif /* PJ_HAS_HIGH_RES_TIMER */
-
+/* $Id$ */ +/* + * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <pj/os.h> +#include <pj/compat/high_precision.h> + +#if defined(PJ_HAS_HIGH_RES_TIMER) && PJ_HAS_HIGH_RES_TIMER != 0 + +#define U32MAX (0xFFFFFFFFUL) +#define NANOSEC (1000000000UL) +#define USEC (1000000UL) +#define MSEC (1000) + +static pj_highprec_t get_elapsed( const pj_timestamp *start, + const pj_timestamp *stop ) +{ + pj_highprec_t elapsed_hi, elapsed_lo; + + elapsed_hi = stop->u32.hi - start->u32.hi; + elapsed_lo = stop->u32.lo - start->u32.lo; + + /* elapsed_hi = elapsed_hi * U32MAX */ + pj_highprec_mul(elapsed_hi, U32MAX); + + return elapsed_hi + elapsed_lo; +} + +static pj_highprec_t elapsed_usec( const pj_timestamp *start, + const pj_timestamp *stop ) +{ + pj_timestamp ts_freq; + pj_highprec_t freq, elapsed; + + if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS) + return 0; + + /* Convert frequency timestamp */ + freq = ts_freq.u32.hi; + pj_highprec_mul(freq, U32MAX); + freq += ts_freq.u32.lo; + + /* Avoid division by zero. */ + if (freq == 0) freq = 1; + + /* Get elapsed time in cycles. */ + elapsed = get_elapsed(start, stop); + + /* usec = elapsed * USEC / freq */ + pj_highprec_mul(elapsed, USEC); + pj_highprec_div(elapsed, freq); + + return elapsed; +} + +PJ_DEF(pj_uint32_t) pj_elapsed_nanosec( const pj_timestamp *start, + const pj_timestamp *stop ) +{ + pj_timestamp ts_freq; + pj_highprec_t freq, elapsed; + + if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS) + return 0; + + /* Convert frequency timestamp */ + freq = ts_freq.u32.hi; + pj_highprec_mul(freq, U32MAX); + freq += ts_freq.u32.lo; + + /* Avoid division by zero. */ + if (freq == 0) freq = 1; + + /* Get elapsed time in cycles. */ + elapsed = get_elapsed(start, stop); + + /* usec = elapsed * USEC / freq */ + pj_highprec_mul(elapsed, NANOSEC); + pj_highprec_div(elapsed, freq); + + return (pj_uint32_t)elapsed; +} + +PJ_DEF(pj_uint32_t) pj_elapsed_usec( const pj_timestamp *start, + const pj_timestamp *stop ) +{ + return (pj_uint32_t)elapsed_usec(start, stop); +} + +PJ_DEF(pj_time_val) pj_elapsed_time( const pj_timestamp *start, + const pj_timestamp *stop ) +{ + pj_highprec_t elapsed = elapsed_usec(start, stop); + pj_time_val tv_elapsed; + + if (PJ_HIGHPREC_VALUE_IS_ZERO(elapsed)) { + tv_elapsed.sec = tv_elapsed.msec = 0; + return tv_elapsed; + } else { + pj_highprec_t sec, msec; + + sec = elapsed; + pj_highprec_div(sec, USEC); + tv_elapsed.sec = (long)sec; + + msec = elapsed; + pj_highprec_mod(msec, USEC); + pj_highprec_div(msec, 1000); + tv_elapsed.msec = (long)msec; + + return tv_elapsed; + } +} + +PJ_DEF(pj_uint32_t) pj_elapsed_cycle( const pj_timestamp *start, + const pj_timestamp *stop ) +{ + return stop->u32.lo - start->u32.lo; +} + +#endif /* PJ_HAS_HIGH_RES_TIMER */ + |