| /* |
| ******************************************************************************* |
| * Copyright (C) 2004, International Business Machines Corporation and |
| * others. All Rights Reserved. |
| ******************************************************************************* |
| */ |
| |
| #include "unicode/utypes.h" |
| |
| #if !UCONFIG_NO_FORMATTING |
| |
| #include "unicode/utmscale.h" |
| |
| #define ticks INT64_C(1) |
| #define microseconds (ticks * 10) |
| #define milliseconds (microseconds * 1000) |
| #define seconds (milliseconds * 1000) |
| #define minutes (seconds * 60) |
| #define hours (minutes * 60) |
| #define days (hours * 24) |
| |
| #define TIME_SCALE_CHECK(scale,status) \ |
| if(scale < 0 || scale >= UDTS_MAX_SCALE) { \ |
| *status = U_ILLEGAL_ARGUMENT_ERROR; \ |
| return 0; \ |
| } |
| |
| typedef struct |
| { |
| int64_t units; |
| int64_t epochOffset; |
| |
| int64_t fromMin; |
| int64_t fromMax; |
| int64_t toMin; |
| int64_t toMax; |
| |
| int64_t epochOffsetP1; |
| int64_t epochOffsetM1; |
| int64_t unitsRound; |
| int64_t minRound; |
| int64_t maxRound; |
| } InternalTimeScaleData; |
| |
| static const InternalTimeScaleData timeScaleTable[] = { |
| /* units epochOffset fromMin fromMax toMin toMax epochOffsetP1 epochOffsetM1 unitsRound minRound maxRound */ |
| {milliseconds, INT64_C(62135769600000), INT64_C(-984472973285477), INT64_C(860201434085477), INT64_C(-9223372036854774999), INT64_C(9223372036854774999), INT64_C(62135769600001), INT64_C(62135769599999), INT64_C(5000), INT64_C(-9223372036854770808), INT64_C(9223372036854770807)}, |
| {seconds, INT64_C(62135769600), INT64_C(-984472973285), INT64_C(860201434085), U_INT64_MIN, INT64_C(9223372036854775807), INT64_C(62135769601), INT64_C(62135769599), INT64_C(5000000), INT64_C(-9223372036849775808), INT64_C(9223372036849775807)}, |
| {milliseconds, INT64_C(62135769600000), INT64_C(-984472973285477), INT64_C(860201434085477), INT64_C(-9223372036854774999), INT64_C(9223372036854774999), INT64_C(62135769600001), INT64_C(62135769599999), INT64_C(5000), INT64_C(-9223372036854770808), INT64_C(9223372036854770807)}, |
| {ticks, INT64_C(504912960000000000), U_INT64_MIN, INT64_C(8718459076854775807), INT64_C(-8718459076854775808), INT64_C(9223372036854775807), INT64_C(504912960000000000), INT64_C(504912960000000000), INT64_C(0), U_INT64_MIN, INT64_C(9223372036854775807)}, |
| {ticks, INT64_C(0), U_INT64_MIN, INT64_C(9223372036854775807), U_INT64_MIN, INT64_C(9223372036854775807), INT64_C(0), INT64_C(0), INT64_C(0), U_INT64_MIN, INT64_C(9223372036854775807)}, |
| {seconds, INT64_C(60052924800), INT64_C(-982390128485), INT64_C(862284278885), U_INT64_MIN, INT64_C(9223372036854775807), INT64_C(60052924801), INT64_C(60052924799), INT64_C(5000000), INT64_C(-9223372036849775808), INT64_C(9223372036849775807)}, |
| {seconds, INT64_C(63114076800), INT64_C(-985451280485), INT64_C(859223126885), U_INT64_MIN, INT64_C(9223372036854775807), INT64_C(63114076801), INT64_C(63114076799), INT64_C(5000000), INT64_C(-9223372036849775808), INT64_C(9223372036849775807)}, |
| {days, INT64_C(693596), INT64_C(-11368795), INT64_C(9981603), U_INT64_MIN, INT64_C(9223372036854775807), INT64_C(693597), INT64_C(693595), INT64_C(432000000000), INT64_C(-9223371604854775808), INT64_C(9223371604854775807)}, |
| {days, INT64_C(693596), INT64_C(-11368795), INT64_C(9981603), U_INT64_MIN, INT64_C(9223372036854775807), INT64_C(693597), INT64_C(693595), INT64_C(432000000000), INT64_C(-9223371604854775808), INT64_C(9223371604854775807)}, |
| }; |
| |
| U_CAPI int64_t U_EXPORT2 |
| utmscale_getTimeScaleValue(UDateTimeScale timeScale, UTimeScaleValue value, UErrorCode *status) |
| { |
| const InternalTimeScaleData *internalData; |
| |
| if (status == NULL || U_FAILURE(*status)) { |
| return 0; |
| } |
| |
| if (timeScale < 0 || timeScale >= UDTS_MAX_SCALE) { |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| internalData = &timeScaleTable[timeScale]; |
| |
| switch (value) |
| { |
| case UTSV_UNITS_VALUE: |
| return internalData->units; |
| |
| case UTSV_EPOCH_OFFSET_VALUE: |
| return internalData->epochOffset; |
| |
| case UTSV_FROM_MIN_VALUE: |
| return internalData->fromMin; |
| |
| case UTSV_FROM_MAX_VALUE: |
| return internalData->fromMax; |
| |
| case UTSV_TO_MIN_VALUE: |
| return internalData->toMin; |
| |
| case UTSV_TO_MAX_VALUE: |
| return internalData->toMax; |
| |
| case UTSV_EPOCH_OFFSET_PLUS_1_VALUE: |
| return internalData->epochOffsetP1; |
| |
| case UTSV_EPOCH_OFFSET_MINUS_1_VALUE: |
| return internalData->epochOffsetM1; |
| |
| case UTSV_UNITS_ROUND_VALUE: |
| return internalData->unitsRound; |
| |
| case UTSV_MIN_ROUND_VALUE: |
| return internalData->minRound; |
| |
| case UTSV_MAX_ROUND_VALUE: |
| return internalData->maxRound; |
| |
| default: |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| } |
| |
| U_CAPI int64_t U_EXPORT2 |
| utmscale_fromInt64(int64_t otherTime, UDateTimeScale timeScale, UErrorCode *status) |
| { |
| const InternalTimeScaleData *data; |
| |
| if (status == NULL || U_FAILURE(*status)) { |
| return 0; |
| } |
| |
| if (timeScale < 0 || timeScale >= UDTS_MAX_SCALE) { |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| data = &timeScaleTable[timeScale]; |
| |
| if (otherTime < data->fromMin || otherTime > data->fromMax) { |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| return (otherTime + data->epochOffset) * data->units; |
| } |
| |
| U_CAPI int64_t U_EXPORT2 |
| utmscale_toInt64(int64_t universalTime, UDateTimeScale timeScale, UErrorCode *status) |
| { |
| const InternalTimeScaleData *data; |
| |
| if (status == NULL || U_FAILURE(*status)) { |
| return 0; |
| } |
| |
| if (timeScale < 0 || timeScale >= UDTS_MAX_SCALE) { |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| data = &timeScaleTable[timeScale]; |
| |
| if (universalTime < data->toMin || universalTime > data->toMax) { |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| if (universalTime < 0) { |
| if (universalTime < data->minRound) { |
| return (universalTime + data->unitsRound) / data->units - data->epochOffsetP1; |
| } |
| |
| return (universalTime - data->unitsRound) / data->units - data->epochOffset; |
| } |
| |
| if (universalTime > data->maxRound) { |
| return (universalTime - data->unitsRound) / data->units - data->epochOffsetM1; |
| } |
| |
| return (universalTime + data->unitsRound) / data->units - data->epochOffset; |
| } |
| |
| #endif /* #if !UCONFIG_NO_FORMATTING */ |