static void
ConsoleInit(void)
{
ThreadSpecificData *tsdPtr;
/*
* Check the initialized flag first, then check again in the mutex. This
* is a speed enhancement.
*/
if (!initialized) {
Tcl_MutexLock(&consoleMutex);
if (!initialized) {
initialized = 1;
Tcl_CreateExitHandler(ProcExitHandler, NULL);
}
Tcl_MutexUnlock(&consoleMutex);
}
tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey);
if (tsdPtr == NULL) {
tsdPtr = TCL_TSD_INIT(&dataKey);
tsdPtr->firstConsolePtr = NULL;
Tcl_CreateEventSource(ConsoleSetupProc, ConsoleCheckProc, NULL);
Tcl_CreateThreadExitHandler(ConsoleExitHandler, NULL);
}
}
static ThreadSpecificData *
InitTimer(void)
{
ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
if (tsdPtr == NULL) {
tsdPtr = TCL_TSD_INIT(&dataKey);
Tcl_CreateEventSource(TimerSetupProc, TimerCheckProc, NULL);
Tcl_CreateThreadExitHandler(TimerExitProc, NULL);
}
return tsdPtr;
}
static void
TimerExitProc(
ClientData clientData) /* Not used. */
{
ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);
Tcl_DeleteEventSource(TimerSetupProc, TimerCheckProc, NULL);
if (tsdPtr != NULL) {
register TimerHandler *timerHandlerPtr;
timerHandlerPtr = tsdPtr->firstTimerHandlerPtr;
while (timerHandlerPtr != NULL) {
tsdPtr->firstTimerHandlerPtr = timerHandlerPtr->nextPtr;
ckfree(timerHandlerPtr);
timerHandlerPtr = tsdPtr->firstTimerHandlerPtr;
}
}
}