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msvcrt: Return a per-thread buffer in localtime and gmtime.

This commit is contained in:
Alexandre Julliard 2005-12-21 20:54:26 +01:00
parent 2bb87a90b2
commit 06c1a36bce
2 changed files with 45 additions and 44 deletions
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25
dlls/msvcrt/msvcrt.h
View File

@ -74,6 +74,18 @@ typedef void (*MSVCRT__beginthread_start_routine_t)(void *);
typedef unsigned int (__stdcall *MSVCRT__beginthreadex_start_routine_t)(void *);
typedef int (*MSVCRT__onexit_t)(void);
struct MSVCRT_tm {
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday;
int tm_yday;
int tm_isdst;
};
/* TLS data */
extern DWORD msvcrt_tls_index;
@ -84,6 +96,7 @@ struct __thread_data {
unsigned char *mbstok_next; /* next ptr for mbstok() */
char *efcvt_buffer; /* buffer for ecvt/fcvt */
MSVCRT_wchar_t *wasctime_buffer; /* buffer for asctime */
struct MSVCRT_tm time_buffer; /* buffer for localtime/gmtime */
int fpecode;
MSVCRT_terminate_function terminate_handler;
MSVCRT_unexpected_function unexpected_handler;
@ -173,18 +186,6 @@ extern unsigned msvcrt_create_io_inherit_block(STARTUPINFOA*);
#define _RT_CRNL 252
#define _RT_BANNER 255
struct MSVCRT_tm {
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday;
int tm_yday;
int tm_isdst;
};
struct MSVCRT__timeb {
MSVCRT_time_t time;
unsigned short millitm;

64
dlls/msvcrt/time.c
View File

@ -54,9 +54,6 @@ static inline int IsLeapYear(int Year)
#define TICKSPERMSEC 10000
#define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
/* native uses a single static buffer for localtime/gmtime/mktime */
static struct MSVCRT_tm tm;
/**********************************************************************
* mktime (MSVCRT.@)
*/
@ -65,7 +62,7 @@ MSVCRT_time_t MSVCRT_mktime(struct MSVCRT_tm *t)
MSVCRT_time_t secs;
FILETIME lft, uft;
ULONGLONG time;
struct MSVCRT_tm ts;
struct MSVCRT_tm ts, *ptm;
int cleaps, day;
ts=*t;
@ -125,7 +122,7 @@ MSVCRT_time_t MSVCRT_mktime(struct MSVCRT_tm *t)
secs = time - SECS_1601_TO_1970;
/* compute tm_wday, tm_yday and renormalize the other fields of the
* tm structure */
if( MSVCRT_localtime( &secs)) *t = tm;
if ((ptm = MSVCRT_localtime( &secs ))) *t = *ptm;
return secs;
}
@ -135,8 +132,8 @@ MSVCRT_time_t MSVCRT_mktime(struct MSVCRT_tm *t)
*/
struct MSVCRT_tm* MSVCRT_localtime(const MSVCRT_time_t* secs)
{
thread_data_t * const data = msvcrt_get_thread_data();
int i;
FILETIME ft, lft;
SYSTEMTIME st;
DWORD tzid;
@ -152,34 +149,37 @@ struct MSVCRT_tm* MSVCRT_localtime(const MSVCRT_time_t* secs)
if (st.wYear < 1970) return NULL;
tm.tm_sec = st.wSecond;
tm.tm_min = st.wMinute;
tm.tm_hour = st.wHour;
tm.tm_mday = st.wDay;
tm.tm_year = st.wYear - 1900;
tm.tm_mon = st.wMonth - 1;
tm.tm_wday = st.wDayOfWeek;
data->time_buffer.tm_sec = st.wSecond;
data->time_buffer.tm_min = st.wMinute;
data->time_buffer.tm_hour = st.wHour;
data->time_buffer.tm_mday = st.wDay;
data->time_buffer.tm_year = st.wYear - 1900;
data->time_buffer.tm_mon = st.wMonth - 1;
data->time_buffer.tm_wday = st.wDayOfWeek;
for (i = tm.tm_yday = 0; i < st.wMonth - 1; i++) {
tm.tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
for (i = data->time_buffer.tm_yday = 0; i < st.wMonth - 1; i++) {
data->time_buffer.tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
}
tm.tm_yday += st.wDay - 1;
data->time_buffer.tm_yday += st.wDay - 1;
tzid = GetTimeZoneInformation(&tzinfo);
if (tzid == TIME_ZONE_ID_INVALID)
tm.tm_isdst = -1;
data->time_buffer.tm_isdst = -1;
else
tm.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT?1:0);
data->time_buffer.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT?1:0);
return &tm;
return &data->time_buffer;
}
/*********************************************************************
* gmtime (MSVCRT.@)
*/
struct MSVCRT_tm* MSVCRT_gmtime(const MSVCRT_time_t* secs)
{
thread_data_t * const data = msvcrt_get_thread_data();
int i;
FILETIME ft;
SYSTEMTIME st;
@ -192,21 +192,21 @@ struct MSVCRT_tm* MSVCRT_gmtime(const MSVCRT_time_t* secs)
if (st.wYear < 1970) return NULL;
tm.tm_sec = st.wSecond;
tm.tm_min = st.wMinute;
tm.tm_hour = st.wHour;
tm.tm_mday = st.wDay;
tm.tm_year = st.wYear - 1900;
tm.tm_mon = st.wMonth - 1;
tm.tm_wday = st.wDayOfWeek;
for (i = tm.tm_yday = 0; i < st.wMonth - 1; i++) {
tm.tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
data->time_buffer.tm_sec = st.wSecond;
data->time_buffer.tm_min = st.wMinute;
data->time_buffer.tm_hour = st.wHour;
data->time_buffer.tm_mday = st.wDay;
data->time_buffer.tm_year = st.wYear - 1900;
data->time_buffer.tm_mon = st.wMonth - 1;
data->time_buffer.tm_wday = st.wDayOfWeek;
for (i = data->time_buffer.tm_yday = 0; i < st.wMonth - 1; i++) {
data->time_buffer.tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
}
tm.tm_yday += st.wDay - 1;
tm.tm_isdst = 0;
data->time_buffer.tm_yday += st.wDay - 1;
data->time_buffer.tm_isdst = 0;
return &tm;
return &data->time_buffer;
}
/**********************************************************************