diff options
Diffstat (limited to 'unix/tclUnixTime.c')
| -rw-r--r-- | unix/tclUnixTime.c | 170 | 
1 files changed, 16 insertions, 154 deletions
| diff --git a/unix/tclUnixTime.c b/unix/tclUnixTime.c index d3ec43e..926e8f4 100644 --- a/unix/tclUnixTime.c +++ b/unix/tclUnixTime.c @@ -8,8 +8,6 @@   *   * See the file "license.terms" for information on usage and redistribution of   * this file, and for a DISCLAIMER OF ALL WARRANTIES. - * - * RCS: @(#) $Id: tclUnixTime.c,v 1.36 2008/10/26 12:45:04 dkf Exp $   */  #include "tclInt.h" @@ -64,7 +62,7 @@ Tcl_ScaleTimeProc *tclScaleTimeProcPtr = NativeScaleTime;  ClientData tclTimeClientData = NULL;  /* - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   *   * TclpGetSeconds --   * @@ -77,7 +75,7 @@ ClientData tclTimeClientData = NULL;   * Side effects:   *	None.   * - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   */  unsigned long @@ -87,7 +85,7 @@ TclpGetSeconds(void)  }  /* - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   *   * TclpGetClicks --   * @@ -102,7 +100,7 @@ TclpGetSeconds(void)   * Side effects:   *	None.   * - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   */  unsigned long @@ -136,7 +134,7 @@ TclpGetClicks(void)  #ifdef TCL_WIDE_CLICKS  /* - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   *   * TclpGetWideClicks --   * @@ -151,7 +149,7 @@ TclpGetClicks(void)   * Side effects:   *	None.   * - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   */  Tcl_WideInt @@ -176,7 +174,7 @@ TclpGetWideClicks(void)  }  /* - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   *   * TclpWideClicksToNanoseconds --   * @@ -189,7 +187,7 @@ TclpGetWideClicks(void)   * Side effects:   *	None.   * - *----------------------------------------------------------------------------- + *----------------------------------------------------------------------   */  double @@ -226,122 +224,6 @@ TclpWideClicksToNanoseconds(  /*   *----------------------------------------------------------------------   * - * TclpGetTimeZone -- - * - *	Determines the current timezone. The method varies wildly between - *	different platform implementations, so its hidden in this function. - * - * Results: - *	The return value is the local time zone, measured in minutes away from - *	GMT (-ve for east, +ve for west). - * - * Side effects: - *	None. - * - *---------------------------------------------------------------------- - */ - -int -TclpGetTimeZone( -    unsigned long currentTime) -{ -    int timeZone; - -    /* -     * We prefer first to use the time zone in "struct tm" if the structure -     * contains such a member. Following that, we try to locate the external -     * 'timezone' variable and use its value. If both of those methods fail, -     * we attempt to convert a known time to local time and use the difference -     * from UTC as the local time zone. In all cases, we need to undo any -     * Daylight Saving Time adjustment. -     */ - -#if defined(HAVE_TM_TZADJ) -#define TCL_GOT_TIMEZONE -    /* -     * Struct tm contains tm_tzadj - that value may be used. -     */ - -    time_t curTime = (time_t) currentTime; -    struct tm *timeDataPtr = TclpLocaltime(&curTime); - -    timeZone = timeDataPtr->tm_tzadj / 60; -    if (timeDataPtr->tm_isdst) { -	timeZone += 60; -    } -#endif - -#if defined(HAVE_TM_GMTOFF) && !defined (TCL_GOT_TIMEZONE) -#define TCL_GOT_TIMEZONE -    /* -     * Struct tm contains tm_gmtoff - that value may be used. -     */ - -    time_t curTime = (time_t) currentTime; -    struct tm *timeDataPtr = TclpLocaltime(&curTime); - -    timeZone = -(timeDataPtr->tm_gmtoff / 60); -    if (timeDataPtr->tm_isdst) { -	timeZone += 60; -    } -#endif - -#if defined(HAVE_TIMEZONE_VAR) && !defined(TCL_GOT_TIMEZONE) && !defined(USE_DELTA_FOR_TZ) -#define TCL_GOT_TIMEZONE -    /* -     * The 'timezone' external var is present and may be used. -     */ - -    SetTZIfNecessary(); - -    /* -     * Note: this is not a typo in "timezone" below! See tzset documentation -     * for details. -     */ - -    timeZone = timezone / 60; -#endif - -#if !defined(TCL_GOT_TIMEZONE) -#define TCL_GOT_TIMEZONE -    /* -     * Fallback - determine time zone with a known reference time. -     */ - -    time_t tt; -    struct tm *stm; - -    tt = 849268800L;		/* 1996-11-29 12:00:00  GMT */ -    stm = TclpLocaltime(&tt);	/* eg 1996-11-29  6:00:00  CST6CDT */ - -    /* -     * The calculation below assumes a max of +12 or -12 hours from GMT. -     */ - -    timeZone = (12 - stm->tm_hour)*60 + (0 - stm->tm_min); -    if (stm->tm_isdst) { -	timeZone += 60; -    } - -    /* -     * Now have offset for our known reference time, eg +360 for CST6CDT. -     */ -#endif - -#ifndef TCL_GOT_TIMEZONE -    /* -     * Cause fatal compile error, we don't know how to get timezone. -     */ - -#error autoconf did not figure out how to determine the timezone. -#endif - -    return timeZone; -} - -/* - *---------------------------------------------------------------------- - *   * Tcl_GetTime --   *   *	Gets the current system time in seconds and microseconds since the @@ -424,25 +306,14 @@ TclpGmtime(      ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tmKey);  #ifdef HAVE_GMTIME_R -    gmtime_r(timePtr, &(tsdPtr->gmtime_buf)); +    gmtime_r(timePtr, &tsdPtr->gmtime_buf);  #else      Tcl_MutexLock(&tmMutex); -    memcpy(&(tsdPtr->gmtime_buf), gmtime(timePtr), sizeof(struct tm)); +    memcpy(&tsdPtr->gmtime_buf, gmtime(timePtr), sizeof(struct tm));      Tcl_MutexUnlock(&tmMutex);  #endif -    return &(tsdPtr->gmtime_buf); -} - -/* - * Forwarder for obsolete item in Stubs - */ - -struct tm * -TclpGmtime_unix( -    const time_t *timePtr) -{ -    return TclpGmtime(timePtr); +    return &tsdPtr->gmtime_buf;  }  /* @@ -475,23 +346,14 @@ TclpLocaltime(      SetTZIfNecessary();  #ifdef HAVE_LOCALTIME_R -    localtime_r(timePtr, &(tsdPtr->localtime_buf)); +    localtime_r(timePtr, &tsdPtr->localtime_buf);  #else      Tcl_MutexLock(&tmMutex); -    memcpy(&(tsdPtr->localtime_buf), localtime(timePtr), sizeof(struct tm)); +    memcpy(&tsdPtr->localtime_buf, localtime(timePtr), sizeof(struct tm));      Tcl_MutexUnlock(&tmMutex);  #endif -    return &(tsdPtr->localtime_buf); -} -/* - * Forwarder for obsolete item in Stubs - */ -struct tm* -TclpLocaltime_unix( -    const time_t *timePtr) -{ -    return TclpLocaltime(timePtr); +    return &tsdPtr->localtime_buf;  }  /* @@ -639,9 +501,9 @@ SetTZIfNecessary(void)      if (lastTZ == NULL || strcmp(lastTZ, newTZ)) {  	tzset();  	if (lastTZ == NULL) { -	    Tcl_CreateExitHandler(CleanupMemory, (ClientData) NULL); +	    Tcl_CreateExitHandler(CleanupMemory, NULL);  	} else { -	    Tcl_Free(lastTZ); +	    ckfree(lastTZ);  	}  	lastTZ = ckalloc(strlen(newTZ) + 1);  	strcpy(lastTZ, newTZ); | 
