Mercurial > trustbridge > nss-cmake-static
comparison nspr/pr/src/misc/prinrval.c @ 0:1e5118fa0cb1
This is NSS with a Cmake Buildsyste
To compile a static NSS library for Windows we've used the
Chromium-NSS fork and added a Cmake buildsystem to compile
it statically for Windows. See README.chromium for chromium
changes and README.trustbridge for our modifications.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
|---|---|
| date | Mon, 28 Jul 2014 10:47:06 +0200 |
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| -1:000000000000 | 0:1e5118fa0cb1 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 * file: prinrval.c | |
| 8 * description: implementation for the kernel interval timing functions | |
| 9 */ | |
| 10 | |
| 11 #include "primpl.h" | |
| 12 | |
| 13 /* | |
| 14 *----------------------------------------------------------------------- | |
| 15 * | |
| 16 * _PR_InitClock -- | |
| 17 * | |
| 18 * | |
| 19 *----------------------------------------------------------------------- | |
| 20 */ | |
| 21 | |
| 22 void _PR_InitClock(void) | |
| 23 { | |
| 24 _PR_MD_INTERVAL_INIT(); | |
| 25 #ifdef DEBUG | |
| 26 { | |
| 27 PRIntervalTime ticksPerSec = PR_TicksPerSecond(); | |
| 28 | |
| 29 PR_ASSERT(ticksPerSec >= PR_INTERVAL_MIN); | |
| 30 PR_ASSERT(ticksPerSec <= PR_INTERVAL_MAX); | |
| 31 } | |
| 32 #endif /* DEBUG */ | |
| 33 } | |
| 34 | |
| 35 PR_IMPLEMENT(PRIntervalTime) PR_IntervalNow(void) | |
| 36 { | |
| 37 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 38 return _PR_MD_GET_INTERVAL(); | |
| 39 } /* PR_IntervalNow */ | |
| 40 | |
| 41 PR_EXTERN(PRUint32) PR_TicksPerSecond(void) | |
| 42 { | |
| 43 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 44 return _PR_MD_INTERVAL_PER_SEC(); | |
| 45 } /* PR_TicksPerSecond */ | |
| 46 | |
| 47 PR_IMPLEMENT(PRIntervalTime) PR_SecondsToInterval(PRUint32 seconds) | |
| 48 { | |
| 49 return seconds * PR_TicksPerSecond(); | |
| 50 } /* PR_SecondsToInterval */ | |
| 51 | |
| 52 PR_IMPLEMENT(PRIntervalTime) PR_MillisecondsToInterval(PRUint32 milli) | |
| 53 { | |
| 54 PRIntervalTime ticks; | |
| 55 PRUint64 tock, tps, msecPerSec, rounding; | |
| 56 LL_UI2L(tock, milli); | |
| 57 LL_I2L(msecPerSec, PR_MSEC_PER_SEC); | |
| 58 LL_I2L(rounding, (PR_MSEC_PER_SEC >> 1)); | |
| 59 LL_I2L(tps, PR_TicksPerSecond()); | |
| 60 LL_MUL(tock, tock, tps); | |
| 61 LL_ADD(tock, tock, rounding); | |
| 62 LL_DIV(tock, tock, msecPerSec); | |
| 63 LL_L2UI(ticks, tock); | |
| 64 return ticks; | |
| 65 } /* PR_MillisecondsToInterval */ | |
| 66 | |
| 67 PR_IMPLEMENT(PRIntervalTime) PR_MicrosecondsToInterval(PRUint32 micro) | |
| 68 { | |
| 69 PRIntervalTime ticks; | |
| 70 PRUint64 tock, tps, usecPerSec, rounding; | |
| 71 LL_UI2L(tock, micro); | |
| 72 LL_I2L(usecPerSec, PR_USEC_PER_SEC); | |
| 73 LL_I2L(rounding, (PR_USEC_PER_SEC >> 1)); | |
| 74 LL_I2L(tps, PR_TicksPerSecond()); | |
| 75 LL_MUL(tock, tock, tps); | |
| 76 LL_ADD(tock, tock, rounding); | |
| 77 LL_DIV(tock, tock, usecPerSec); | |
| 78 LL_L2UI(ticks, tock); | |
| 79 return ticks; | |
| 80 } /* PR_MicrosecondsToInterval */ | |
| 81 | |
| 82 PR_IMPLEMENT(PRUint32) PR_IntervalToSeconds(PRIntervalTime ticks) | |
| 83 { | |
| 84 return ticks / PR_TicksPerSecond(); | |
| 85 } /* PR_IntervalToSeconds */ | |
| 86 | |
| 87 PR_IMPLEMENT(PRUint32) PR_IntervalToMilliseconds(PRIntervalTime ticks) | |
| 88 { | |
| 89 PRUint32 milli; | |
| 90 PRUint64 tock, tps, msecPerSec, rounding; | |
| 91 LL_UI2L(tock, ticks); | |
| 92 LL_I2L(msecPerSec, PR_MSEC_PER_SEC); | |
| 93 LL_I2L(tps, PR_TicksPerSecond()); | |
| 94 LL_USHR(rounding, tps, 1); | |
| 95 LL_MUL(tock, tock, msecPerSec); | |
| 96 LL_ADD(tock, tock, rounding); | |
| 97 LL_DIV(tock, tock, tps); | |
| 98 LL_L2UI(milli, tock); | |
| 99 return milli; | |
| 100 } /* PR_IntervalToMilliseconds */ | |
| 101 | |
| 102 PR_IMPLEMENT(PRUint32) PR_IntervalToMicroseconds(PRIntervalTime ticks) | |
| 103 { | |
| 104 PRUint32 micro; | |
| 105 PRUint64 tock, tps, usecPerSec, rounding; | |
| 106 LL_UI2L(tock, ticks); | |
| 107 LL_I2L(usecPerSec, PR_USEC_PER_SEC); | |
| 108 LL_I2L(tps, PR_TicksPerSecond()); | |
| 109 LL_USHR(rounding, tps, 1); | |
| 110 LL_MUL(tock, tock, usecPerSec); | |
| 111 LL_ADD(tock, tock, rounding); | |
| 112 LL_DIV(tock, tock, tps); | |
| 113 LL_L2UI(micro, tock); | |
| 114 return micro; | |
| 115 } /* PR_IntervalToMicroseconds */ | |
| 116 | |
| 117 /* prinrval.c */ | |
| 118 |