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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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inittime.c
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C/C++ Source or Header
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1998-06-17
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10KB
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235 lines
/***
*inittime.c - contains __init_time
*
* Copyright (c) 1991-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Contains the locale-category initialization function: __init_time().
*
* Each initialization function sets up locale-specific information
* for their category, for use by functions which are affected by
* their locale category.
*
* *** For internal use by setlocale() only ***
*
*******************************************************************************/
#include <stdlib.h>
#include <windows.h>
#include <locale.h>
#include <setlocal.h>
#include <malloc.h>
#include <dbgint.h>
static int __cdecl _get_lc_time(struct __lc_time_data *lc_time);
static void __cdecl _free_lc_time(struct __lc_time_data *lc_time);
/* C locale time strings */
extern struct __lc_time_data __lc_time_c;
/* Pointer to current time strings */
extern struct __lc_time_data *__lc_time_curr;
/* Pointer to non-C locale time strings */
struct __lc_time_data *__lc_time_intl = NULL;
/***
*int __init_time() - initialization for LC_TIME locale category.
*
*Purpose:
* In non-C locales, read the localized time/date strings into
* __lc_time_intl, and set __lc_time_curr to point to it. The old
* __lc_time_intl is not freed until the new one is fully established.
*
* In the C locale, __lc_time_curr is made to point to __lc_time_c.
* Any allocated __lc_time_intl structures are freed.
*
*Entry:
* None.
*
*Exit:
* 0 success
* 1 fail
*
*Exceptions:
*
*******************************************************************************/
int __cdecl __init_time (
void
)
{
/* Temporary date/time strings */
struct __lc_time_data *lc_time;
if (__lc_handle[LC_TIME] != _CLOCALEHANDLE)
{
/* Allocate structure filled with NULL pointers */
if ((lc_time = (struct __lc_time_data *)
_calloc_crt (1, sizeof(struct __lc_time_data))) == NULL)
return 1;
if (_get_lc_time (lc_time))
{
_free_lc_time (lc_time);
_free_crt (lc_time);
return 1;
}
__lc_time_curr = lc_time; /* point to new one */
_free_lc_time (__lc_time_intl); /* free the old one */
_free_crt (__lc_time_intl);
__lc_time_intl = lc_time;
return 0;
} else {
__lc_time_curr = &__lc_time_c; /* point to new one */
_free_lc_time (__lc_time_intl); /* free the old one */
_free_crt (__lc_time_intl);
__lc_time_intl = NULL;
return 0;
}
}
/*
* Get the localized time strings.
* Of course, this can be beautified with some loops!
*/
static int __cdecl _get_lc_time (
struct __lc_time_data *lc_time
)
{
int ret = 0;
/* Some things are language-dependent and some are country-dependent.
This works around an NT limitation and lets us distinguish the two. */
LCID langid = MAKELCID(__lc_id[LC_TIME].wLanguage, SORT_DEFAULT);
LCID ctryid = MAKELCID(__lc_id[LC_TIME].wCountry, SORT_DEFAULT);
if (lc_time == NULL)
return -1;
/* All the text-strings are Language-dependent: */
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME1, (void *)&lc_time->wday_abbr[1]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME2, (void *)&lc_time->wday_abbr[2]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME3, (void *)&lc_time->wday_abbr[3]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME4, (void *)&lc_time->wday_abbr[4]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME5, (void *)&lc_time->wday_abbr[5]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME6, (void *)&lc_time->wday_abbr[6]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVDAYNAME7, (void *)&lc_time->wday_abbr[0]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME1, (void *)&lc_time->wday[1]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME2, (void *)&lc_time->wday[2]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME3, (void *)&lc_time->wday[3]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME4, (void *)&lc_time->wday[4]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME5, (void *)&lc_time->wday[5]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME6, (void *)&lc_time->wday[6]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SDAYNAME7, (void *)&lc_time->wday[0]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME1, (void *)&lc_time->month_abbr[0]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME2, (void *)&lc_time->month_abbr[1]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME3, (void *)&lc_time->month_abbr[2]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME4, (void *)&lc_time->month_abbr[3]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME5, (void *)&lc_time->month_abbr[4]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME6, (void *)&lc_time->month_abbr[5]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME7, (void *)&lc_time->month_abbr[6]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME8, (void *)&lc_time->month_abbr[7]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME9, (void *)&lc_time->month_abbr[8]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME10, (void *)&lc_time->month_abbr[9]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME11, (void *)&lc_time->month_abbr[10]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SABBREVMONTHNAME12, (void *)&lc_time->month_abbr[11]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME1, (void *)&lc_time->month[0]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME2, (void *)&lc_time->month[1]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME3, (void *)&lc_time->month[2]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME4, (void *)&lc_time->month[3]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME5, (void *)&lc_time->month[4]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME6, (void *)&lc_time->month[5]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME7, (void *)&lc_time->month[6]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME8, (void *)&lc_time->month[7]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME9, (void *)&lc_time->month[8]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME10, (void *)&lc_time->month[9]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME11, (void *)&lc_time->month[10]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_SMONTHNAME12, (void *)&lc_time->month[11]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_S1159, (void *)&lc_time->ampm[0]);
ret |= __getlocaleinfo(LC_STR_TYPE, langid, LOCALE_S2359, (void *)&lc_time->ampm[1]);
/* The following relate to time format and are Country-dependent: */
ret |= __getlocaleinfo(LC_STR_TYPE, ctryid, LOCALE_SSHORTDATE, (void *)&lc_time->ww_sdatefmt);
ret |= __getlocaleinfo(LC_STR_TYPE, ctryid, LOCALE_SLONGDATE, (void *)&lc_time->ww_ldatefmt);
ret |= __getlocaleinfo(LC_STR_TYPE, ctryid, LOCALE_STIMEFORMAT, (void *)&lc_time->ww_timefmt);
return ret;
}
/*
* Free the localized time strings.
* Of course, this can be beautified with some loops!
*/
static void __cdecl _free_lc_time (
struct __lc_time_data *lc_time
)
{
if (lc_time == NULL)
return;
_free_crt (lc_time->wday_abbr[1]);
_free_crt (lc_time->wday_abbr[2]);
_free_crt (lc_time->wday_abbr[3]);
_free_crt (lc_time->wday_abbr[4]);
_free_crt (lc_time->wday_abbr[5]);
_free_crt (lc_time->wday_abbr[6]);
_free_crt (lc_time->wday_abbr[0]);
_free_crt (lc_time->wday[1]);
_free_crt (lc_time->wday[2]);
_free_crt (lc_time->wday[3]);
_free_crt (lc_time->wday[4]);
_free_crt (lc_time->wday[5]);
_free_crt (lc_time->wday[6]);
_free_crt (lc_time->wday[0]);
_free_crt (lc_time->month_abbr[0]);
_free_crt (lc_time->month_abbr[1]);
_free_crt (lc_time->month_abbr[2]);
_free_crt (lc_time->month_abbr[3]);
_free_crt (lc_time->month_abbr[4]);
_free_crt (lc_time->month_abbr[5]);
_free_crt (lc_time->month_abbr[6]);
_free_crt (lc_time->month_abbr[7]);
_free_crt (lc_time->month_abbr[8]);
_free_crt (lc_time->month_abbr[9]);
_free_crt (lc_time->month_abbr[10]);
_free_crt (lc_time->month_abbr[11]);
_free_crt (lc_time->month[0]);
_free_crt (lc_time->month[1]);
_free_crt (lc_time->month[2]);
_free_crt (lc_time->month[3]);
_free_crt (lc_time->month[4]);
_free_crt (lc_time->month[5]);
_free_crt (lc_time->month[6]);
_free_crt (lc_time->month[7]);
_free_crt (lc_time->month[8]);
_free_crt (lc_time->month[9]);
_free_crt (lc_time->month[10]);
_free_crt (lc_time->month[11]);
_free_crt (lc_time->ampm[0]);
_free_crt (lc_time->ampm[1]);
_free_crt (lc_time->ww_sdatefmt);
_free_crt (lc_time->ww_ldatefmt);
_free_crt (lc_time->ww_timefmt);
/* Don't need to make these pointers NULL */
}