55    if (isOpen) { // file is already open  in OpenForRead()
74          isOpen = 0;  in OpenForRead()
77          isOpen = 0;  in OpenForRead()
92                isOpen = 1;  in OpenForRead()
95          if (isOpen && realFilename.substr(0,4) == "/dev") {  in OpenForRead()
107    return isOpen;  in OpenForRead()
113    if ((isOpen) && (openForWrite))  in OpenForWrite()
129       isOpen = 1;  in OpenForWrite()
132       isOpen = 0;  in OpenForWrite()
135    return isOpen;  in OpenForWrite()
141    if (isOpen)  in Close()
144    isOpen = 0;  in Close()
158    if (!isOpen) {  in GetBlockSize()
162    if (isOpen) {  in GetBlockSize()
202    if (!isOpen) {  in GetPhysBlockSize()
206    if (isOpen) {  in GetPhysBlockSize()
225    if (!isOpen)  in GetNumHeads()
243    if (!isOpen)  in GetNumSecsPerTrack()
261    if (!isOpen) {  in DiskSync()
265    if (isOpen) {  in DiskSync()
315    if (!isOpen) {  in Seek()
319    if (isOpen) {  in Seek()
338    if (!isOpen) {  in Read()
342    if (isOpen) {  in Read()
381    if ((!isOpen) || (!openForWrite)) {  in Write()
385    if (isOpen) {  in Write()
437    if (!isOpen) {  in DiskSize()
441    if (isOpen) {  in DiskSize()