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Overview
Comment: | Remove Tclp(Local|Gm)time_unix forwarders, the same can be done directly Some void -> VOID transitions |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | core-8-4-branch |
Files: | files | file ages | folders |
SHA1: |
288986ffb15e74b3f2d3e22669389773 |
User & Date: | jan.nijtmans 2011-03-25 13:13:26 |
Context
2011-03-25
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21:16 | [Bug 3007895]: Tcl_(Find|Create)HashEntry stub entries can never be called. They still cannot be cal... check-in: d92ec3651b user: jan tags: core-8-4-branch | |
13:46 | fix genStubs.tcl in one place where it generated "void *" in stead of "VOID *" Remove Tclp(Local|Gm)... check-in: 491f6fe449 user: jan.nijtmans tags: core-8-5-branch | |
13:13 | Remove Tclp(Local|Gm)time_unix forwarders, the same can be done directly Some void -> VOID transitio... check-in: 288986ffb1 user: jan.nijtmans tags: core-8-4-branch | |
2011-03-24
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09:40 | Ensure that any reference to temporary index tables is squelched immediately rather than hanging aro... check-in: e7289d1266 user: dkf tags: core-8-4-branch | |
Changes
Changes to generic/tclInt.decls.
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636 637 638 639 640 641 642 | # ALERT: The result of 'TclGetInstructionTable' is actually an # "InstructionDesc*" but we do not want to describe this structure in # "tclInt.h". It is described in "tclCompile.h". Use a cast to the # correct type when calling this procedure. declare 163 generic { | | | | 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 | # ALERT: The result of 'TclGetInstructionTable' is actually an # "InstructionDesc*" but we do not want to describe this structure in # "tclInt.h". It is described in "tclCompile.h". Use a cast to the # correct type when calling this procedure. declare 163 generic { VOID *TclGetInstructionTable(void) } # ALERT: The argument of 'TclExpandCodeArray' is actually a # "CompileEnv*" but we do not want to describe this structure in # "tclInt.h". It is described in "tclCompile.h". declare 164 generic { void TclExpandCodeArray(VOID *envPtr) } # These functions are vfs aware, but are generally only useful internally. declare 165 generic { void TclpSetInitialEncodings(void) } |
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786 787 788 789 790 791 792 | declare 15 mac { OSErr TclMacInstallExitToShellPatch(ExitToShellProcPtr newProc) } declare 16 mac { int TclMacOSErrorToPosixError(int error) } declare 17 mac { | | | | | 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 | declare 15 mac { OSErr TclMacInstallExitToShellPatch(ExitToShellProcPtr newProc) } declare 16 mac { int TclMacOSErrorToPosixError(int error) } declare 17 mac { void TclMacRemoveTimer(VOID *timerToken) } declare 18 mac { VOID *TclMacStartTimer(long ms) } declare 19 mac { int TclMacTimerExpired(VOID *timerToken) } declare 20 mac { int TclMacRegisterResourceFork(short fileRef, Tcl_Obj *tokenPtr, int insert) } declare 21 mac { short TclMacUnRegisterResourceFork(char *tokenPtr, Tcl_Obj *resultPtr) |
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Changes to generic/tclIntDecls.h.
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461 462 463 464 465 466 467 | /* 161 */ EXTERN int TclChannelTransform _ANSI_ARGS_((Tcl_Interp * interp, Tcl_Channel chan, Tcl_Obj * cmdObjPtr)); /* 162 */ EXTERN void TclChannelEventScriptInvoker _ANSI_ARGS_(( ClientData clientData, int flags)); /* 163 */ | | | | 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 | /* 161 */ EXTERN int TclChannelTransform _ANSI_ARGS_((Tcl_Interp * interp, Tcl_Channel chan, Tcl_Obj * cmdObjPtr)); /* 162 */ EXTERN void TclChannelEventScriptInvoker _ANSI_ARGS_(( ClientData clientData, int flags)); /* 163 */ EXTERN VOID * TclGetInstructionTable _ANSI_ARGS_((void)); /* 164 */ EXTERN void TclExpandCodeArray _ANSI_ARGS_((VOID * envPtr)); /* 165 */ EXTERN void TclpSetInitialEncodings _ANSI_ARGS_((void)); /* 166 */ EXTERN int TclListObjSetElement _ANSI_ARGS_(( Tcl_Interp * interp, Tcl_Obj * listPtr, int index, Tcl_Obj * valuePtr)); /* 167 */ |
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718 719 720 721 722 723 724 | void (*tclRegError) _ANSI_ARGS_((Tcl_Interp * interp, CONST char * msg, int status)); /* 156 */ Var * (*tclVarTraceExists) _ANSI_ARGS_((Tcl_Interp * interp, CONST char * varName)); /* 157 */ void (*tclSetStartupScriptFileName) _ANSI_ARGS_((CONST char * filename)); /* 158 */ CONST84_RETURN char * (*tclGetStartupScriptFileName) _ANSI_ARGS_((void)); /* 159 */ void *reserved160; int (*tclChannelTransform) _ANSI_ARGS_((Tcl_Interp * interp, Tcl_Channel chan, Tcl_Obj * cmdObjPtr)); /* 161 */ void (*tclChannelEventScriptInvoker) _ANSI_ARGS_((ClientData clientData, int flags)); /* 162 */ | | | | 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 | void (*tclRegError) _ANSI_ARGS_((Tcl_Interp * interp, CONST char * msg, int status)); /* 156 */ Var * (*tclVarTraceExists) _ANSI_ARGS_((Tcl_Interp * interp, CONST char * varName)); /* 157 */ void (*tclSetStartupScriptFileName) _ANSI_ARGS_((CONST char * filename)); /* 158 */ CONST84_RETURN char * (*tclGetStartupScriptFileName) _ANSI_ARGS_((void)); /* 159 */ void *reserved160; int (*tclChannelTransform) _ANSI_ARGS_((Tcl_Interp * interp, Tcl_Channel chan, Tcl_Obj * cmdObjPtr)); /* 161 */ void (*tclChannelEventScriptInvoker) _ANSI_ARGS_((ClientData clientData, int flags)); /* 162 */ VOID * (*tclGetInstructionTable) _ANSI_ARGS_((void)); /* 163 */ void (*tclExpandCodeArray) _ANSI_ARGS_((VOID * envPtr)); /* 164 */ void (*tclpSetInitialEncodings) _ANSI_ARGS_((void)); /* 165 */ int (*tclListObjSetElement) _ANSI_ARGS_((Tcl_Interp * interp, Tcl_Obj * listPtr, int index, Tcl_Obj * valuePtr)); /* 166 */ void (*tclSetStartupScriptPath) _ANSI_ARGS_((Tcl_Obj * pathPtr)); /* 167 */ Tcl_Obj * (*tclGetStartupScriptPath) _ANSI_ARGS_((void)); /* 168 */ int (*tclpUtfNcmp2) _ANSI_ARGS_((CONST char * s1, CONST char * s2, unsigned long n)); /* 169 */ int (*tclCheckInterpTraces) _ANSI_ARGS_((Tcl_Interp * interp, CONST char * command, int numChars, Command * cmdPtr, int result, int traceFlags, int objc, Tcl_Obj *CONST objv[])); /* 170 */ int (*tclCheckExecutionTraces) _ANSI_ARGS_((Tcl_Interp * interp, CONST char * command, int numChars, Command * cmdPtr, int result, int traceFlags, int objc, Tcl_Obj *CONST objv[])); /* 171 */ |
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Changes to generic/tclIntPlatDecls.h.
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185 186 187 188 189 190 191 | EXTERN void TclMacInitExitToShell _ANSI_ARGS_((int usePatch)); /* 15 */ EXTERN OSErr TclMacInstallExitToShellPatch _ANSI_ARGS_(( ExitToShellProcPtr newProc)); /* 16 */ EXTERN int TclMacOSErrorToPosixError _ANSI_ARGS_((int error)); /* 17 */ | | | | | 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | EXTERN void TclMacInitExitToShell _ANSI_ARGS_((int usePatch)); /* 15 */ EXTERN OSErr TclMacInstallExitToShellPatch _ANSI_ARGS_(( ExitToShellProcPtr newProc)); /* 16 */ EXTERN int TclMacOSErrorToPosixError _ANSI_ARGS_((int error)); /* 17 */ EXTERN void TclMacRemoveTimer _ANSI_ARGS_((VOID * timerToken)); /* 18 */ EXTERN VOID * TclMacStartTimer _ANSI_ARGS_((long ms)); /* 19 */ EXTERN int TclMacTimerExpired _ANSI_ARGS_((VOID * timerToken)); /* 20 */ EXTERN int TclMacRegisterResourceFork _ANSI_ARGS_(( short fileRef, Tcl_Obj * tokenPtr, int insert)); /* 21 */ EXTERN short TclMacUnRegisterResourceFork _ANSI_ARGS_(( char * tokenPtr, Tcl_Obj * resultPtr)); |
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281 282 283 284 285 286 287 | pascal void (*fSpCreateResFileCompatTcl) _ANSI_ARGS_((CONST FSSpec * spec, OSType creator, OSType fileType, ScriptCode scriptTag)); /* 10 */ int (*fSpLocationFromPath) _ANSI_ARGS_((int length, CONST char * path, FSSpecPtr theSpec)); /* 11 */ OSErr (*fSpPathFromLocation) _ANSI_ARGS_((FSSpecPtr theSpec, int * length, Handle * fullPath)); /* 12 */ void (*tclMacExitHandler) _ANSI_ARGS_((void)); /* 13 */ void (*tclMacInitExitToShell) _ANSI_ARGS_((int usePatch)); /* 14 */ OSErr (*tclMacInstallExitToShellPatch) _ANSI_ARGS_((ExitToShellProcPtr newProc)); /* 15 */ int (*tclMacOSErrorToPosixError) _ANSI_ARGS_((int error)); /* 16 */ | | | | | 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 | pascal void (*fSpCreateResFileCompatTcl) _ANSI_ARGS_((CONST FSSpec * spec, OSType creator, OSType fileType, ScriptCode scriptTag)); /* 10 */ int (*fSpLocationFromPath) _ANSI_ARGS_((int length, CONST char * path, FSSpecPtr theSpec)); /* 11 */ OSErr (*fSpPathFromLocation) _ANSI_ARGS_((FSSpecPtr theSpec, int * length, Handle * fullPath)); /* 12 */ void (*tclMacExitHandler) _ANSI_ARGS_((void)); /* 13 */ void (*tclMacInitExitToShell) _ANSI_ARGS_((int usePatch)); /* 14 */ OSErr (*tclMacInstallExitToShellPatch) _ANSI_ARGS_((ExitToShellProcPtr newProc)); /* 15 */ int (*tclMacOSErrorToPosixError) _ANSI_ARGS_((int error)); /* 16 */ void (*tclMacRemoveTimer) _ANSI_ARGS_((VOID * timerToken)); /* 17 */ VOID * (*tclMacStartTimer) _ANSI_ARGS_((long ms)); /* 18 */ int (*tclMacTimerExpired) _ANSI_ARGS_((VOID * timerToken)); /* 19 */ int (*tclMacRegisterResourceFork) _ANSI_ARGS_((short fileRef, Tcl_Obj * tokenPtr, int insert)); /* 20 */ short (*tclMacUnRegisterResourceFork) _ANSI_ARGS_((char * tokenPtr, Tcl_Obj * resultPtr)); /* 21 */ int (*tclMacCreateEnv) _ANSI_ARGS_((void)); /* 22 */ FILE * (*tclMacFOpenHack) _ANSI_ARGS_((CONST char * path, CONST char * mode)); /* 23 */ char * (*tclpGetTZName) _ANSI_ARGS_((int isdst)); /* 24 */ int (*tclMacChmod) _ANSI_ARGS_((CONST char * path, int mode)); /* 25 */ int (*fSpLLocationFromPath) _ANSI_ARGS_((int length, CONST char * path, FSSpecPtr theSpec)); /* 26 */ |
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584 585 586 587 588 589 590 591 592 | (tclIntPlatStubsPtr->fSpLLocationFromPath) /* 26 */ #endif #endif /* MAC_TCL */ #endif /* defined(USE_TCL_STUBS) && !defined(USE_TCL_STUB_PROCS) */ /* !END!: Do not edit above this line. */ #endif /* _TCLINTPLATDECLS */ | > > > | 584 585 586 587 588 589 590 591 592 593 594 595 | (tclIntPlatStubsPtr->fSpLLocationFromPath) /* 26 */ #endif #endif /* MAC_TCL */ #endif /* defined(USE_TCL_STUBS) && !defined(USE_TCL_STUB_PROCS) */ /* !END!: Do not edit above this line. */ #undef TclpLocaltime_unix #undef TclpGmtime_unix #endif /* _TCLINTPLATDECLS */ |
Changes to generic/tclStubInit.c.
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25 26 27 28 29 30 31 | #undef Tcl_NewIntObj #undef Tcl_NewListObj #undef Tcl_NewLongObj #undef Tcl_NewObj #undef Tcl_NewStringObj #undef Tcl_DumpActiveMemory #undef Tcl_ValidateAllMemory | < | | > | | 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #undef Tcl_NewIntObj #undef Tcl_NewListObj #undef Tcl_NewLongObj #undef Tcl_NewObj #undef Tcl_NewStringObj #undef Tcl_DumpActiveMemory #undef Tcl_ValidateAllMemory #undef Tcl_FindHashEntry #undef Tcl_CreateHashEntry #define TclpLocaltime_unix TclpLocaltime #define TclpGmtime_unix TclpGmtime /* * Keep a record of the original Notifier procedures, created in the * same compilation unit as the stub tables so we can later do reliable, * portable comparisons to see whether a Tcl_SetNotifier() call swapped * new routines into the stub table. */ |
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Changes to unix/tclUnixTime.c.
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| | | | | | | | | | | | | | | < > | > | | | | | | | | > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | /* * tclUnixTime.c -- * * Contains Unix specific versions of Tcl functions that obtain time * values from the operating system. * * Copyright (c) 1995 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tclInt.h" #include "tclPort.h" #include <locale.h> #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 _ANSI_ARGS_((void)); static void CleanupMemory _ANSI_ARGS_((ClientData)); /* *---------------------------------------------------------------------- * * TclpGetSeconds -- * * This procedure returns the number of seconds from the epoch. On most * Unix systems the epoch is Midnight Jan 1, 1970 GMT. * * Results: * Number of seconds from the epoch. * * Side effects: * None. * *---------------------------------------------------------------------- */ unsigned long TclpGetSeconds() { return time((time_t *) NULL); } /* *---------------------------------------------------------------------- * * TclpGetClicks -- * * This procedure returns a value that represents the highest resolution * clock available on the system. There are no garantees on what the * resolution will be. In Tcl we will call this value a "click". The * start time is also system dependant. * * Results: * Number of clicks from some start time. * * Side effects: * None. * *---------------------------------------------------------------------- */ unsigned long TclpGetClicks() { unsigned long now; #ifdef NO_GETTOD struct tms dummy; #else struct timeval date; #endif #ifdef NO_GETTOD |
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108 109 110 111 112 113 114 | } /* *---------------------------------------------------------------------- * * TclpGetTimeZone -- * | | | < | | | | > > | | | < | | | | | | | > | | < | | < < < | | | > | < | < < < | | < < | > | | < < | | < > | | > > | > > | | | > > > | | < > | | | 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | } /* *---------------------------------------------------------------------- * * 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(currentTime) Tcl_WideInt 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((TclpTime_t) &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((TclpTime_t) &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((TclpTime_t) &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 * beginning of the epoch: 00:00 UCT, January 1, 1970. * * Results: * Returns the current time in timePtr. * * Side effects: * None. * |
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254 255 256 257 258 259 260 | } /* *---------------------------------------------------------------------- * * TclpGetDate -- * | | | | | 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 | } /* *---------------------------------------------------------------------- * * 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. * |
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335 336 337 338 339 340 341 | * Side effects: * Invokes gmtime or gmtime_r as appropriate. * *---------------------------------------------------------------------- */ struct tm * | | | | | | | | | | | < < < < < < < < < | | | | | | | | | | < < < < < < | < < < | | | | | | | | > | | | | | | | | | | < | | | > | > > > > > > > > | 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 | * Side effects: * Invokes gmtime or gmtime_r as appropriate. * *---------------------------------------------------------------------- */ struct tm * TclpGmtime(tt) TclpTime_t_CONST tt; { CONST time_t *timePtr = (CONST time_t *) tt; /* 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((VOID *) &(tsdPtr->gmtime_buf), (VOID *) 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(tt) TclpTime_t_CONST tt; { CONST time_t *timePtr = (CONST time_t *) tt; /* 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((VOID *) &(tsdPtr -> localtime_buf), (VOID *) localtime(timePtr), sizeof(struct tm)); Tcl_MutexUnlock(&tmMutex); #endif return &(tsdPtr->localtime_buf); } /* *---------------------------------------------------------------------- * * 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() { 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, (ClientData) NULL); } else { Tcl_Free(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(ignored) ClientData ignored; { ckfree(lastTZ); } /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */ |