void AsioSample::timerOn()
{
theSound = this; // for irq
if(!tmTaskOn)
{
memset(&myTmTask, 0, sizeof(TMTask));
myTmTask.tmAddr = NewTimerProc(myTimer);
myTmTask.tmWakeUp = 0;
tmTaskOn = true;
InsXTime((QElemPtr)&myTmTask);
PrimeTime((QElemPtr)&myTmTask, theSound->milliSeconds);
}
}
int
gettimeofday(struct timeval *tv, struct timezone */*tz*/)
{
// return the time in tv as expected
if (tv != NULL)
{
UnsignedWide tm;
Microseconds(&tm);
tv->tv_sec = tm.lo / 1000000;
tv->tv_usec = tm.lo % 1000000;
}
return 0; // Unix value for successful
#ifdef VERSION_1
/* Must be called only multiple-of-two times or the timer will be left primed. */
static TMTask tm;
static boolean primed = FALSE;
long rt;
if (!primed)
{
// start the timer for the next time that we are called
tm.tmAddr = NewTimerProc(timer_func); // we do not expect this to ever be called
tm.tmCount = 0; // initialize all fields
tm.tmWakeUp = 0;
tm.tmReserved = 0;
InsTime((struct QElem*)&tm);
PrimeTime((struct QElem*)&tm, -LONG_MAX);
primed = TRUE;
rt = 0;
}
else
{
RmvTime((struct QElem*)&tm); // returns unused time in negative microseconds
primed = FALSE;
rt = LONG_MAX - -tm.tmCount;
}
// return the time in tv as expected
if (tv != NULL)
{
tv->tv_sec = rt / 1000000;
tv->tv_usec = rt % 1000000;
}
return 0; // Unix value for successful
#endif // VERSION_1
}
int SDL_SYS_StartTimer(void)
{
gExtendedTimerRec.tmTask.qLink = NULL;
gExtendedTimerRec.tmTask.qType = 0;
gExtendedTimerRec.tmTask.tmAddr = NewTimerProc(TimerCallbackProc);
gExtendedTimerRec.tmTask.tmCount = 0;
gExtendedTimerRec.tmTask.tmWakeUp = 0;
gExtendedTimerRec.tmTask.tmReserved = 0;
GetCurrentProcess(&gExtendedTimerRec.taskPSN);
InsXTime((QElemPtr)&gExtendedTimerRec.tmTask);
PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, SDL_alarm_interval);
return(0);
}
int SDL_SYS_StartTimer(void)
{
/*
* Configure the global structure that stores the timing information.
*/
gExtendedTimerRec.tmTask.qLink = NULL;
gExtendedTimerRec.tmTask.qType = 0;
gExtendedTimerRec.tmTask.tmAddr = NewTimerProc(TimerCallbackProc);
gExtendedTimerRec.tmTask.tmCount = 0;
gExtendedTimerRec.tmTask.tmWakeUp = 0;
gExtendedTimerRec.tmTask.tmReserved = 0;
GetCurrentProcess(&gExtendedTimerRec.taskPSN);
/* Install the task record */
InsXTime((QElemPtr)&gExtendedTimerRec.tmTask);
/* Go! */
PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, SDL_alarm_interval);
return(0);
}
pascal OSErr IndexedSearch(CSParamPtr pb,
long dirID)
{
static LevelRecHandle searchStack = NULL; /* static handle to LevelRec stack */
static Size searchStackSize = 0; /* size of static handle */
SearchPositionRecPtr catPosition;
long modDate;
short index;
ExtendedTMTask timerTask;
OSErr result;
short realVRefNum;
Str63 itemName;
CInfoPBRec cPB;
long tempLong;
Boolean includeFiles;
Boolean includeDirs;
Boolean includeNames;
Str63 upperName;
timerTask.stopSearch = false; /* do NOT stop yet! */
/* If request has a timeout, install a Time Manager task. */
if ( pb->ioSearchTime != 0 )
{
/* Start timer */
timerTask.theTask.tmAddr = NewTimerProc(TimeOutTask);
InsTime((QElemPtr)&(timerTask.theTask));
PrimeTime((QElemPtr)&(timerTask.theTask), pb->ioSearchTime);
}
/* Check the parameter block passed for things that we do NOT want to assume */
/* are OK later in the code. For example, make sure pointers to data structures */
/* and buffers are not NULL. And while we are in there, see if the request */
/* specified searching for files, directories, or both, and see if the search */
/* was by full or partial name. */
result = VerifyUserPB(pb, &includeFiles, &includeDirs, &includeNames);
if ( result == noErr )
{
pb->ioActMatchCount = 0; /* no matches yet */
if ( includeNames )
{
/* The search includes seach by full or partial name. */
/* Make an upper case copy of the match string to pass to */
/* CheckForMatches. */
BlockMoveData(pb->ioSearchInfo1->hFileInfo.ioNamePtr,
upperName,
pb->ioSearchInfo1->hFileInfo.ioNamePtr[0] + 1);
/* Use the same non-international call the File Manager uses */
UpperString(upperName, true);
}
/* Prevent casting to my type throughout code */
catPosition = (SearchPositionRecPtr)&pb->ioCatPosition;
/* Create searchStack first time called */
if ( searchStack == NULL )
{
searchStack = (LevelRecHandle)NewHandle(kAdditionalLevelRecs * sizeof(LevelRec));
}
/* Make sure searchStack really exists */
if ( searchStack != NULL )
{
searchStackSize = InlineGetHandleSize((Handle)searchStack);
/* See if the search is a new search or a resumed search. */
if ( catPosition->initialize == 0 )
{
/* New search. */
/* Get the real vRefNum and fill in catPosition->initialize. */
result = CheckVol(pb->ioNamePtr, pb->ioVRefNum, &realVRefNum, &catPosition->initialize);
if ( result == noErr )
{
/* clear searchStack */
catPosition->stackDepth = 0;
/* use dirID parameter passed and... */
index = -1; /* start with the passed directory itself! */
}
}
else
{
/* We are resuming a search. */
/* Get the real vRefNum and make sure catPosition->initialize is valid. */
result = CheckVol(pb->ioNamePtr, pb->ioVRefNum, &realVRefNum, &tempLong);
if ( result == noErr )
{
/* Make sure the resumed search is to the same volume! */
if ( catPosition->initialize == tempLong )
{
/* For resume, catPosition->stackDepth > 0 */
if ( catPosition->stackDepth > 0 )
{
/* Position catPosition->stackDepth to access last saved level */
--(catPosition->stackDepth);
/* Get the dirID and index for the next item */
dirID = (*searchStack)[catPosition->stackDepth].dirID;
index = (*searchStack)[catPosition->stackDepth].index;
/* Check the dir's mod date against the saved mode date on our "stack" */
modDate = GetDirModDate(realVRefNum, dirID);
if ( modDate != (*searchStack)[catPosition->stackDepth].dirModDate )
{
result = catChangedErr;
}
}
else
{
/* Invalid catPosition record was passed */
result = paramErr;
}
}
else
{
/* The volume is not the same */
result = catChangedErr;
}
}
}
if ( result == noErr )
{
/* ioNamePtr and ioVRefNum only need to be set up once. */
cPB.hFileInfo.ioNamePtr = itemName;
cPB.hFileInfo.ioVRefNum = realVRefNum;
/*
** Here is the loop that:
** Finds the next item on the volume.
** If noErr, calls the code to check for matches and add matches
** to the match buffer.
** Sets up dirID and index for to find the next item on the volume.
**
** The looping ends when:
** (a) an unexpected error is returned by PBGetCatInfo. All that
** is expected is noErr and fnfErr (after the last item in a
** directory is found).
** (b) the caller specified a timeout and our Time Manager task
** has fired.
** (c) the number of matches requested by the caller has been found.
** (d) the last item on the volume was found.
*/
do
{
/* get the next item */
cPB.hFileInfo.ioFDirIndex = index;
cPB.hFileInfo.ioDirID = dirID;
result = PBGetCatInfoSync(&cPB);
if ( index != -1 )
{
if ( result == noErr )
{
/* We found something */
CheckForMatches(&cPB, pb, upperName, includeFiles, includeDirs);
++index;
if ( (cPB.dirInfo.ioFlAttrib & ioDirMask) != 0 )
{
/* It is/was a directory */
result = CheckStack(catPosition->stackDepth, searchStack, &searchStackSize);
if ( result == noErr )
{
/* Save the current state on the searchStack */
/* when we come back, this is where we will start */
(*searchStack)[catPosition->stackDepth].dirID = dirID;
(*searchStack)[catPosition->stackDepth].index = index;
(*searchStack)[catPosition->stackDepth].dirModDate = GetDirModDate(realVRefNum, dirID);
/* position catPosition->stackDepth for next saved level */
++(catPosition->stackDepth);
/* The next item to get is the 1st item in the child directory */
dirID = cPB.dirInfo.ioDrDirID;
index = 1;
}
}
/* else do nothing for files */
}
else
{
/* End of directory found (or we had some error and that */
/* means we have to drop out of this directory). */
/* Restore last thing put on stack and */
/* see if we need to continue or quit. */
if ( catPosition->stackDepth > 0 )
{
/* position catPosition->stackDepth to access last saved level */
--(catPosition->stackDepth);
dirID = (*searchStack)[catPosition->stackDepth].dirID;
index = (*searchStack)[catPosition->stackDepth].index;
/* Check the dir's mod date against the saved mode date on our "stack" */
modDate = GetDirModDate(realVRefNum, dirID);
if ( modDate != (*searchStack)[catPosition->stackDepth].dirModDate )
{
result = catChangedErr;
}
else
{
/* Going back to ancestor directory. */
/* Clear error so we can continue. */
result = noErr;
}
}
else
{
/* We hit the bottom of the stack, so we will let the */
/* the eofErr drop us out of the loop. */
result = eofErr;
}
}
}
else
{
/* Special case for index == -1; that means that we are/were starting */
/* a new search and so the first item to check is the directory */
/* passed to us. */
if ( result == noErr )
{
/* We found something */
CheckForMatches(&cPB, pb, upperName, includeFiles, includeDirs);
/* Now, set the index to 1 and then we are ready to look inside */
/* the passed directory. */
index = 1;
}
}
} while ( (!timerTask.stopSearch) && /* timer has NOT fired */
(result == noErr) && /* no unexpected errors */
(pb->ioReqMatchCount > pb->ioActMatchCount) ); /* we have NOT found our limit */
/* Did we drop out of the loop because of timeout or */
/* ioReqMatchCount was found? */
if ( result == noErr )
{
result = CheckStack(catPosition->stackDepth, searchStack, &searchStackSize);
if ( result == noErr )
{
/* Either there was a timeout or ioReqMatchCount was reached. */
/* Save the dirID and index for the next time we are called. */
(*searchStack)[catPosition->stackDepth].dirID = dirID;
(*searchStack)[catPosition->stackDepth].index = index;
(*searchStack)[catPosition->stackDepth].dirModDate = GetDirModDate(realVRefNum, dirID);
/* position catPosition->stackDepth for next saved level */
++(catPosition->stackDepth);
}
}
}
}
else
{
/* searchStack Handle could not be allocated */
result = memFullErr;
}
}
if ( pb->ioSearchTime != 0 )
{
/* Stop Time Manager task here if it was installed */
RmvTime((QElemPtr)&(timerTask.theTask));
DisposeRoutineDescriptor(timerTask.theTask.tmAddr);
}
return ( result );
}
