pascal OSErr PBCatSearchSyncCompat(CSParamPtr paramBlock)
{
static Boolean fullExtFSDispatchingtested = false;
static Boolean hasFullExtFSDispatching = false;
OSErr result;
Boolean supportsCatSearch;
long response;
GetVolParmsInfoBuffer volParmsInfo;
long infoSize;
result = noErr;
/* See if File Manager will pass CatSearch requests to external file systems */
/* we will store the results in a static variable so we do NOT have to call Gestalt */
/* everytime we are called. */
if ( !fullExtFSDispatchingtested )
{
fullExtFSDispatchingtested = true;
if ( Gestalt(gestaltFSAttr, &response) == noErr )
{
hasFullExtFSDispatching = ((response & (1L << gestaltFullExtFSDispatching)) != 0);
}
}
/* CatSearch is a per volume attribute, so we have to check each time we are */
/* called to see if it is available on the volume specified. */
supportsCatSearch = false;
if ( hasFullExtFSDispatching )
{
infoSize = sizeof(GetVolParmsInfoBuffer);
result = HGetVolParms(paramBlock->ioNamePtr, paramBlock->ioVRefNum,
&volParmsInfo, &infoSize);
if ( result == noErr )
{
supportsCatSearch = hasCatSearch(volParmsInfo);
}
}
/* noErr or paramErr is OK here. */
/* paramErr just means that GetVolParms is NOT supported by this volume */
if ( (result == noErr) || (result == paramErr) )
{
if ( supportsCatSearch )
{
/* Volume supports CatSearch so use it. */
/* CatSearch is faster than an indexed search. */
result = PBCatSearchSync(paramBlock);
}
else
{
/* Volume does NOT support CatSearch so */
/* search using IndexedSearch from root directory. */
result = IndexedSearch(paramBlock, fsRtDirID);
}
}
return ( result );
}
pascal OSErr DTOpen(ConstStr255Param volName,
short vRefNum,
short *dtRefNum,
Boolean *newDTDatabase)
{
OSErr error;
GetVolParmsInfoBuffer volParmsInfo;
long infoSize;
DTPBRec pb;
/* Check for volume Desktop Manager support before calling */
infoSize = sizeof(GetVolParmsInfoBuffer);
error = HGetVolParms(volName, vRefNum, &volParmsInfo, &infoSize);
if ( error == noErr )
{
if ( hasDesktopMgr(&volParmsInfo) )
{
pb.ioNamePtr = (StringPtr)volName;
pb.ioVRefNum = vRefNum;
error = PBDTOpenInform(&pb);
/* PBDTOpenInform informs us if the desktop was just created */
/* by leaving the low bit of ioTagInfo clear (0) */
*newDTDatabase = ((pb.ioTagInfo & 1L) == 0);
if ( error == paramErr )
{
error = PBDTGetPath(&pb);
/* PBDTGetPath doesn't tell us if the database is new */
/* so assume it is not new */
*newDTDatabase = false;
}
*dtRefNum = pb.ioDTRefNum;
}
else
{
error = paramErr;
}
}
return ( error );
}
