diff options
Diffstat (limited to 'unix/tclUnixTime.c')
| -rw-r--r-- | unix/tclUnixTime.c | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/unix/tclUnixTime.c b/unix/tclUnixTime.c index 926e8f4..27b6a58 100644 --- a/unix/tclUnixTime.c +++ b/unix/tclUnixTime.c @@ -16,38 +16,10 @@ #include <mach/mach_time.h> #endif -#define TM_YEAR_BASE 1900 -#define IsLeapYear(x) (((x)%4 == 0) && ((x)%100 != 0 || (x)%400 == 0)) - -/* - * TclpGetDate is coded to return a pointer to a 'struct tm'. For thread - * safety, this structure must be in thread-specific data. The 'tmKey' - * variable is the key to this buffer. - */ - -static Tcl_ThreadDataKey tmKey; -typedef struct ThreadSpecificData { - struct tm gmtime_buf; - struct tm localtime_buf; -} ThreadSpecificData; - -/* - * If we fall back on the thread-unsafe versions of gmtime and localtime, use - * this mutex to try to protect them. - */ - -TCL_DECLARE_MUTEX(tmMutex) - -static char *lastTZ = NULL; /* Holds the last setting of the TZ - * environment variable, or an empty string if - * the variable was not set. */ - /* * Static functions declared in this file. */ -static void SetTZIfNecessary(void); -static void CleanupMemory(ClientData clientData); static void NativeScaleTime(Tcl_Time *timebuf, ClientData clientData); static void NativeGetTime(Tcl_Time *timebuf, @@ -251,114 +223,6 @@ Tcl_GetTime( /* *---------------------------------------------------------------------- * - * TclpGetDate -- - * - * This function converts between seconds and struct tm. If useGMT is - * true, then the returned date will be in Greenwich Mean Time (GMT). - * Otherwise, it will be in the local time zone. - * - * Results: - * Returns a static tm structure. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -struct tm * -TclpGetDate( - const time_t *time, - int useGMT) -{ - if (useGMT) { - return TclpGmtime(time); - } else { - return TclpLocaltime(time); - } -} - -/* - *---------------------------------------------------------------------- - * - * TclpGmtime -- - * - * Wrapper around the 'gmtime' library function to make it thread safe. - * - * Results: - * Returns a pointer to a 'struct tm' in thread-specific data. - * - * Side effects: - * Invokes gmtime or gmtime_r as appropriate. - * - *---------------------------------------------------------------------- - */ - -struct tm * -TclpGmtime( - const time_t *timePtr) /* Pointer to the number of seconds since the - * local system's epoch */ -{ - /* - * Get a thread-local buffer to hold the returned time. - */ - - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tmKey); - -#ifdef HAVE_GMTIME_R - gmtime_r(timePtr, &tsdPtr->gmtime_buf); -#else - Tcl_MutexLock(&tmMutex); - memcpy(&tsdPtr->gmtime_buf, gmtime(timePtr), sizeof(struct tm)); - Tcl_MutexUnlock(&tmMutex); -#endif - - return &tsdPtr->gmtime_buf; -} - -/* - *---------------------------------------------------------------------- - * - * TclpLocaltime -- - * - * Wrapper around the 'localtime' library function to make it thread - * safe. - * - * Results: - * Returns a pointer to a 'struct tm' in thread-specific data. - * - * Side effects: - * Invokes localtime or localtime_r as appropriate. - * - *---------------------------------------------------------------------- - */ - -struct tm * -TclpLocaltime( - const time_t *timePtr) /* Pointer to the number of seconds since the - * local system's epoch */ -{ - /* - * Get a thread-local buffer to hold the returned time. - */ - - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tmKey); - - SetTZIfNecessary(); -#ifdef HAVE_LOCALTIME_R - localtime_r(timePtr, &tsdPtr->localtime_buf); -#else - Tcl_MutexLock(&tmMutex); - memcpy(&tsdPtr->localtime_buf, localtime(timePtr), sizeof(struct tm)); - Tcl_MutexUnlock(&tmMutex); -#endif - - return &tsdPtr->localtime_buf; -} - -/* - *---------------------------------------------------------------------- - * * Tcl_SetTimeProc -- * * TIP #233 (Virtualized Time): Registers two handlers for the @@ -470,70 +334,6 @@ NativeGetTime( timePtr->sec = tv.tv_sec; timePtr->usec = tv.tv_usec; } -/* - *---------------------------------------------------------------------- - * - * SetTZIfNecessary -- - * - * Determines whether a call to 'tzset' is needed prior to the next call - * to 'localtime' or examination of the 'timezone' variable. - * - * Results: - * None. - * - * Side effects: - * If 'tzset' has never been called in the current process, or if the - * value of the environment variable TZ has changed since the last call - * to 'tzset', then 'tzset' is called again. - * - *---------------------------------------------------------------------- - */ - -static void -SetTZIfNecessary(void) -{ - const char *newTZ = getenv("TZ"); - - Tcl_MutexLock(&tmMutex); - if (newTZ == NULL) { - newTZ = ""; - } - if (lastTZ == NULL || strcmp(lastTZ, newTZ)) { - tzset(); - if (lastTZ == NULL) { - Tcl_CreateExitHandler(CleanupMemory, NULL); - } else { - ckfree(lastTZ); - } - lastTZ = ckalloc(strlen(newTZ) + 1); - strcpy(lastTZ, newTZ); - } - Tcl_MutexUnlock(&tmMutex); -} - -/* - *---------------------------------------------------------------------- - * - * CleanupMemory -- - * - * Releases the private copy of the TZ environment variable upon exit - * from Tcl. - * - * Results: - * None. - * - * Side effects: - * Frees allocated memory. - * - *---------------------------------------------------------------------- - */ - -static void -CleanupMemory( - ClientData ignored) -{ - ckfree(lastTZ); -} /* * Local Variables: |