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-rw-r--r--mac/tclMacInterupt.c289
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diff --git a/mac/tclMacInterupt.c b/mac/tclMacInterupt.c
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--- a/mac/tclMacInterupt.c
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@@ -1,289 +0,0 @@
-/*
- * tclMacInterupt.c --
- *
- * This file contains routines that deal with the Macintosh's low level
- * time manager. This code provides a better resolution timer than what
- * can be provided by WaitNextEvent.
- *
- * Copyright (c) 1996 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclMacInterupt.c,v 1.2 1998/09/14 18:40:05 stanton Exp $
- */
-
-#include "tclInt.h"
-#include "tclMacInt.h"
-#include <LowMem.h>
-#include <Processes.h>
-#include <Timer.h>
-
-/*
- * Data structure for timer tasks.
- */
-typedef struct TMInfo {
- TMTask tmTask;
- ProcessSerialNumber psn;
- Point lastPoint;
- Point newPoint;
- long currentA5;
- long ourA5;
- int installed;
-} TMInfo;
-
-/*
- * Globals used within this file.
- */
-
-static TimerUPP sleepTimerProc = NULL;
-static int interuptsInited = false;
-static ProcessSerialNumber applicationPSN;
-#define MAX_TIMER_ARRAY_SIZE 16
-static TMInfo timerInfoArray[MAX_TIMER_ARRAY_SIZE];
-static int topTimerElement = 0;
-
-/*
- * Prototypes for procedures that are referenced only in this file:
- */
-
-#if !GENERATINGCFM
-static TMInfo * GetTMInfo(void) ONEWORDINLINE(0x2E89); /* MOVE.L A1,(SP) */
-#endif
-static void SleepTimerProc _ANSI_ARGS_((void));
-static pascal void CleanUpExitProc _ANSI_ARGS_((void));
-static void InitInteruptSystem _ANSI_ARGS_((void));
-
-/*
- *----------------------------------------------------------------------
- *
- * InitInteruptSystem --
- *
- * Does various initialization for the functions used in this
- * file. Sets up Universial Pricedure Pointers, installs a trap
- * patch for ExitToShell, etc.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Various initialization.
- *
- *----------------------------------------------------------------------
- */
-
-void
-InitInteruptSystem()
-{
- int i;
-
- sleepTimerProc = NewTimerProc(SleepTimerProc);
- GetCurrentProcess(&applicationPSN);
- for (i = 0; i < MAX_TIMER_ARRAY_SIZE; i++) {
- timerInfoArray[i].installed = false;
- }
-
- /*
- * Install the ExitToShell patch. We use this patch instead
- * of the Tcl exit mechanism because we need to ensure that
- * these routines are cleaned up even if we crash or are forced
- * to quit. There are some circumstances when the Tcl exit
- * handlers may not fire.
- */
-
- TclMacInstallExitToShellPatch(CleanUpExitProc);
- interuptsInited = true;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclMacStartTimer --
- *
- * Install a Time Manager task to wake our process up in the
- * future. The process should get a NULL event after ms
- * milliseconds.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Schedules our process to wake up.
- *
- *----------------------------------------------------------------------
- */
-
-void *
-TclMacStartTimer(
- long ms) /* Milliseconds. */
-{
- TMInfo *timerInfoPtr;
-
- if (!interuptsInited) {
- InitInteruptSystem();
- }
-
- /*
- * Obtain a pointer for the timer. We only allocate up
- * to MAX_TIMER_ARRAY_SIZE timers. If we are past that
- * max we return NULL.
- */
- if (topTimerElement < MAX_TIMER_ARRAY_SIZE) {
- timerInfoPtr = &timerInfoArray[topTimerElement];
- topTimerElement++;
- } else {
- return NULL;
- }
-
- /*
- * Install timer to wake process in ms milliseconds.
- */
- timerInfoPtr->tmTask.tmAddr = sleepTimerProc;
- timerInfoPtr->tmTask.tmWakeUp = 0;
- timerInfoPtr->tmTask.tmReserved = 0;
- timerInfoPtr->psn = applicationPSN;
- timerInfoPtr->installed = true;
-
- InsTime((QElemPtr) timerInfoPtr);
- PrimeTime((QElemPtr) timerInfoPtr, (long) ms);
-
- return (void *) timerInfoPtr;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclMacRemoveTimer --
- *
- * Remove the timer event from the Time Manager.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A scheduled timer would be removed.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclMacRemoveTimer(
- void * timerToken) /* Token got from start timer. */
-{
- TMInfo *timerInfoPtr = (TMInfo *) timerToken;
-
- if (timerInfoPtr == NULL) {
- return;
- }
-
- RmvTime((QElemPtr) timerInfoPtr);
- timerInfoPtr->installed = false;
- topTimerElement--;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclMacTimerExpired --
- *
- * Check to see if the installed timer has expired.
- *
- * Results:
- * True if timer has expired, false otherwise.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclMacTimerExpired(
- void * timerToken) /* Our token again. */
-{
- TMInfo *timerInfoPtr = (TMInfo *) timerToken;
-
- if ((timerInfoPtr == NULL) ||
- !(timerInfoPtr->tmTask.qType & kTMTaskActive)) {
- return true;
- } else {
- return false;
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * SleepTimerProc --
- *
- * Time proc is called by the is a callback routine placed in the
- * system by Tcl_Sleep. The routine is called at interupt time
- * and threrfor can not move or allocate memory. This call will
- * schedule our process to wake up the next time the process gets
- * around to consider running it.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Schedules our process to wake up.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-SleepTimerProc()
-{
- /*
- * In CFM code we can access our code directly. In 68k code that
- * isn't based on CFM we must do a glorious hack. The function
- * GetTMInfo is an inline assembler call that moves the pointer
- * at A1 to the top of the stack. The Time Manager keeps the TMTask
- * info record there before calling this call back. In order for
- * this to work the infoPtr argument must be the *last* item on the
- * stack. If we "piggyback" our data to the TMTask info record we
- * can get access to the information we need. While this is really
- * ugly - it's the way Apple recomends it be done - go figure...
- */
-
-#if GENERATINGCFM
- WakeUpProcess(&applicationPSN);
-#else
- TMInfo * infoPtr;
-
- infoPtr = GetTMInfo();
- WakeUpProcess(&infoPtr->psn);
-#endif
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * CleanUpExitProc --
- *
- * This procedure is invoked as an exit handler when ExitToShell
- * is called. It removes the system level timer handler if it
- * is installed. This must be called or the Mac OS will more than
- * likely crash.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static pascal void
-CleanUpExitProc()
-{
- int i;
-
- for (i = 0; i < MAX_TIMER_ARRAY_SIZE; i++) {
- if (timerInfoArray[i].installed) {
- RmvTime((QElemPtr) &timerInfoArray[i]);
- timerInfoArray[i].installed = false;
- }
- }
-}