Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | #include <pj/os.h> |
| 20 | #include <pj/compat/high_precision.h> |
| 21 | |
| 22 | #if defined(PJ_HAS_HIGH_RES_TIMER) && PJ_HAS_HIGH_RES_TIMER != 0 |
| 23 | |
| 24 | #define U32MAX (0xFFFFFFFFUL) |
| 25 | #define NANOSEC (1000000000UL) |
| 26 | #define USEC (1000000UL) |
| 27 | #define MSEC (1000) |
| 28 | |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 29 | #define u64tohighprec(u64) ((pj_highprec_t)((pj_int64_t)(u64))) |
| 30 | |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 31 | static pj_highprec_t get_elapsed( const pj_timestamp *start, |
| 32 | const pj_timestamp *stop ) |
| 33 | { |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 34 | #if defined(PJ_HAS_INT64) && PJ_HAS_INT64!=0 |
| 35 | return u64tohighprec(stop->u64 - start->u64); |
| 36 | #else |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 37 | pj_highprec_t elapsed_hi, elapsed_lo; |
| 38 | |
| 39 | elapsed_hi = stop->u32.hi - start->u32.hi; |
| 40 | elapsed_lo = stop->u32.lo - start->u32.lo; |
| 41 | |
| 42 | /* elapsed_hi = elapsed_hi * U32MAX */ |
| 43 | pj_highprec_mul(elapsed_hi, U32MAX); |
| 44 | |
| 45 | return elapsed_hi + elapsed_lo; |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 46 | #endif |
| 47 | } |
| 48 | |
| 49 | static pj_highprec_t elapsed_msec( const pj_timestamp *start, |
| 50 | const pj_timestamp *stop ) |
| 51 | { |
| 52 | pj_timestamp ts_freq; |
| 53 | pj_highprec_t freq, elapsed; |
| 54 | |
| 55 | if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS) |
| 56 | return 0; |
| 57 | |
| 58 | /* Convert frequency timestamp */ |
| 59 | #if defined(PJ_HAS_INT64) && PJ_HAS_INT64!=0 |
| 60 | freq = u64tohighprec(ts_freq.u64); |
| 61 | #else |
| 62 | freq = ts_freq.u32.hi; |
| 63 | pj_highprec_mul(freq, U32MAX); |
| 64 | freq += ts_freq.u32.lo; |
| 65 | #endif |
| 66 | |
| 67 | /* Avoid division by zero. */ |
| 68 | if (freq == 0) freq = 1; |
| 69 | |
| 70 | /* Get elapsed time in cycles. */ |
| 71 | elapsed = get_elapsed(start, stop); |
| 72 | |
| 73 | /* usec = elapsed * MSEC / freq */ |
| 74 | pj_highprec_mul(elapsed, MSEC); |
| 75 | pj_highprec_div(elapsed, freq); |
| 76 | |
| 77 | return elapsed; |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | static pj_highprec_t elapsed_usec( const pj_timestamp *start, |
| 81 | const pj_timestamp *stop ) |
| 82 | { |
| 83 | pj_timestamp ts_freq; |
| 84 | pj_highprec_t freq, elapsed; |
| 85 | |
| 86 | if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS) |
| 87 | return 0; |
| 88 | |
| 89 | /* Convert frequency timestamp */ |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 90 | #if defined(PJ_HAS_INT64) && PJ_HAS_INT64!=0 |
| 91 | freq = u64tohighprec(ts_freq.u64); |
| 92 | #else |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 93 | freq = ts_freq.u32.hi; |
| 94 | pj_highprec_mul(freq, U32MAX); |
| 95 | freq += ts_freq.u32.lo; |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 96 | #endif |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 97 | |
| 98 | /* Avoid division by zero. */ |
| 99 | if (freq == 0) freq = 1; |
| 100 | |
| 101 | /* Get elapsed time in cycles. */ |
| 102 | elapsed = get_elapsed(start, stop); |
| 103 | |
| 104 | /* usec = elapsed * USEC / freq */ |
| 105 | pj_highprec_mul(elapsed, USEC); |
| 106 | pj_highprec_div(elapsed, freq); |
| 107 | |
| 108 | return elapsed; |
| 109 | } |
| 110 | |
| 111 | PJ_DEF(pj_uint32_t) pj_elapsed_nanosec( const pj_timestamp *start, |
| 112 | const pj_timestamp *stop ) |
| 113 | { |
| 114 | pj_timestamp ts_freq; |
| 115 | pj_highprec_t freq, elapsed; |
| 116 | |
| 117 | if (pj_get_timestamp_freq(&ts_freq) != PJ_SUCCESS) |
| 118 | return 0; |
| 119 | |
| 120 | /* Convert frequency timestamp */ |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 121 | #if defined(PJ_HAS_INT64) && PJ_HAS_INT64!=0 |
| 122 | freq = u64tohighprec(ts_freq.u64); |
| 123 | #else |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 124 | freq = ts_freq.u32.hi; |
| 125 | pj_highprec_mul(freq, U32MAX); |
| 126 | freq += ts_freq.u32.lo; |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 127 | #endif |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 128 | |
| 129 | /* Avoid division by zero. */ |
| 130 | if (freq == 0) freq = 1; |
| 131 | |
| 132 | /* Get elapsed time in cycles. */ |
| 133 | elapsed = get_elapsed(start, stop); |
| 134 | |
| 135 | /* usec = elapsed * USEC / freq */ |
| 136 | pj_highprec_mul(elapsed, NANOSEC); |
| 137 | pj_highprec_div(elapsed, freq); |
| 138 | |
| 139 | return (pj_uint32_t)elapsed; |
| 140 | } |
| 141 | |
| 142 | PJ_DEF(pj_uint32_t) pj_elapsed_usec( const pj_timestamp *start, |
| 143 | const pj_timestamp *stop ) |
| 144 | { |
| 145 | return (pj_uint32_t)elapsed_usec(start, stop); |
| 146 | } |
| 147 | |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 148 | PJ_DEF(pj_uint32_t) pj_elapsed_msec( const pj_timestamp *start, |
| 149 | const pj_timestamp *stop ) |
| 150 | { |
| 151 | return (pj_uint32_t)elapsed_msec(start, stop); |
| 152 | } |
| 153 | |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 154 | PJ_DEF(pj_time_val) pj_elapsed_time( const pj_timestamp *start, |
| 155 | const pj_timestamp *stop ) |
| 156 | { |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 157 | pj_highprec_t elapsed = elapsed_msec(start, stop); |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 158 | pj_time_val tv_elapsed; |
| 159 | |
| 160 | if (PJ_HIGHPREC_VALUE_IS_ZERO(elapsed)) { |
| 161 | tv_elapsed.sec = tv_elapsed.msec = 0; |
| 162 | return tv_elapsed; |
| 163 | } else { |
| 164 | pj_highprec_t sec, msec; |
| 165 | |
| 166 | sec = elapsed; |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 167 | pj_highprec_div(sec, MSEC); |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 168 | tv_elapsed.sec = (long)sec; |
| 169 | |
| 170 | msec = elapsed; |
Benny Prijono | 99683ae | 2005-11-21 16:59:47 +0000 | [diff] [blame] | 171 | pj_highprec_mod(msec, MSEC); |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 172 | tv_elapsed.msec = (long)msec; |
| 173 | |
| 174 | return tv_elapsed; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | PJ_DEF(pj_uint32_t) pj_elapsed_cycle( const pj_timestamp *start, |
| 179 | const pj_timestamp *stop ) |
| 180 | { |
| 181 | return stop->u32.lo - start->u32.lo; |
| 182 | } |
| 183 | |
| 184 | #endif /* PJ_HAS_HIGH_RES_TIMER */ |
| 185 | |