signed char ioman_directSectorRead(IOManager *ioman,unsigned long address, unsigned char* buf)
{
unsigned char* ibuf;
signed short bp;
if((bp=ioman_findSectorInCache(ioman,address))!=-1){
ibuf=ioman_getPtr(ioman,bp);
memCpy(ibuf,buf,512);
return(0);
}
if((bp=ioman_findFreeSpot(ioman))!=-1){
if((ioman_putSectorInCache(ioman,address,bp))){
return(-1);
}
ibuf=ioman_getPtr(ioman,bp);
memCpy(ibuf,buf,512);
return(0);
}
if(ioman_readSector(ioman,address,buf)){
return(-1);
}
return(0);
}
signed char ioman_directSectorWrite(IOManager *ioman,unsigned long address, unsigned char* buf)
{
unsigned char* ibuf;
signed short bp;
if((bp=ioman_findSectorInCache(ioman,address))!=-1){
ibuf=ioman_getPtr(ioman,bp);
memCpy(buf,ibuf,512);
ioman_setWritable(bp);
return(0);
}
if((bp=ioman_findFreeSpot(ioman))!=-1){
ibuf=ioman_getPtr(ioman,bp);
memCpy(buf,ibuf,512);
ioman_resetCacheItem(ioman,bp);
ioman->sector[bp]=address;
ioman_setWritable(bp);
ioman_setValid(bp);
return(0);
}
if(ioman_writeSector(ioman,address,buf)){
return(-1);
}
return(0);
}
esint8 ioman_directSectorWrite(IOManager *ioman,euint32 address, euint8* buf)
{
euint8* ibuf;
esint16 bp;
if((bp=ioman_findSectorInCache(ioman,address))!=-1){
ibuf=ioman_getPtr(ioman,bp);
memCpy(buf,ibuf,512);
ioman_setWritable(bp);
return(0);
}
if((bp=ioman_findFreeSpot(ioman))!=-1){
ibuf=ioman_getPtr(ioman,bp);
memCpy(buf,ibuf,512);
ioman_resetCacheItem(ioman,bp);
ioman->sector[bp]=address;
ioman_setWritable(bp);
ioman_setValid(bp);
return(0);
}
if(ioman_writeSector(ioman,address,buf)){
return(-1);
}
return(0);
}
esint8 ioman_directSectorRead(IOManager *ioman,euint32 address, euint8* buf)
{
euint8* ibuf;
esint16 bp;
if((bp=ioman_findSectorInCache(ioman,address))!=-1){
ibuf=ioman_getPtr(ioman,bp);
memCpy(ibuf,buf,512);
return(0);
}
if((bp=ioman_findFreeSpot(ioman))!=-1){
if((ioman_putSectorInCache(ioman,address,bp))){
return(-1);
}
ibuf=ioman_getPtr(ioman,bp);
memCpy(ibuf,buf,512);
return(0);
}
if(ioman_readSector(ioman,address,buf)){
return(-1);
}
return(0);
}
unsigned char* ioman_getSector(IOManager *ioman,unsigned long address, unsigned char mode)
{
signed long bp;
if((bp=ioman_findSectorInCache(ioman,address))!=-1){
if(ioman_isReqRw(mode)){
ioman_setWritable(bp);
}
ioman_incUseCnt(ioman,bp);
if(!ioman_isReqExp(mode))ioman_incRefCnt(ioman,bp);
return(ioman_getPtr(ioman,bp));
}
if((bp=ioman_findFreeSpot(ioman))==-1){
if(((bp=ioman_findUnusedSpot(ioman))!=-1)&&(ioman_isWritable(bp))){
ioman_flushSector(ioman,bp);
}
}
if(bp!=-1){
ioman_resetCacheItem(ioman,bp);
if((ioman_putSectorInCache(ioman,address,bp))){
return(0);
}
if(mode==IOM_MODE_READWRITE){
ioman_setWritable(bp);
}
ioman_incUseCnt(ioman,bp);
if(!ioman_isReqExp(mode))ioman_incRefCnt(ioman,bp);
return(ioman_getPtr(ioman,bp));
}
if((bp=ioman_findOverallocableSpot(ioman))!=-1){
if(ioman_isWritable(bp)){
ioman_flushSector(ioman,bp);
}
if(ioman_push(ioman,bp)){
return(0);
}
ioman_resetCacheItem(ioman,bp);
if((ioman_putSectorInCache(ioman,address,bp))){
return(0);
}
if(ioman_isReqRw(mode)){
ioman_setWritable(bp);
}
ioman_incUseCnt(ioman,bp);
if(!ioman_isReqExp(mode))ioman_incRefCnt(ioman,bp);
return(ioman_getPtr(ioman,bp));
}
ioman_setError(ioman,IOMAN_ERR_NOMEMORY);
return(0);
}
euint8* ioman_getSector(IOManager *ioman,euint32 address, euint8 mode)
{
esint32 bp;
if((bp=ioman_findSectorInCache(ioman,address))!=-1){
if(mode==IOM_MODE_READWRITE){
ioman_setWritable(bp);
}
ioman_incUseCnt(ioman,bp);
ioman_incRefCnt(ioman,bp);
return(ioman_getPtr(ioman,bp));
}
if((bp=ioman_findFreeSpot(ioman))==-1){
if(((bp=ioman_findUnusedSpot(ioman))!=-1)&&(ioman_isWritable(bp))){
ioman_flushSector(ioman,bp);
}
}
if(bp!=-1){
ioman_resetCacheItem(ioman,bp);
if((ioman_putSectorInCache(ioman,address,bp))){
return(0);
}
if(mode==IOM_MODE_READWRITE){
ioman_setWritable(bp);
}
ioman_incUseCnt(ioman,bp);
ioman_incRefCnt(ioman,bp);
return(ioman_getPtr(ioman,bp));
}
if((bp=ioman_findOverallocableSpot(ioman))!=-1){
if(ioman_isWritable(bp)){
ioman_flushSector(ioman,bp);
}
if(ioman_push(ioman,bp)){
return(0);
}
ioman_resetCacheItem(ioman,bp);
if((ioman_putSectorInCache(ioman,address,bp))){
return(0);
}
if(mode==IOM_MODE_READWRITE){
ioman_setWritable(bp);
}
ioman_incUseCnt(ioman,bp);
ioman_incRefCnt(ioman,bp);
return(ioman_getPtr(ioman,bp));
}
return(0);
}
esint8 ioman_flushSector(IOManager *ioman, euint16 bufplace)
{
euint8* buf;
if((buf = ioman_getPtr(ioman,bufplace))==0)return(-1);
if(!ioman_isWritable(bufplace))return(-1);
if(!(ioman_writeSector(ioman,ioman->sector[bufplace],buf)))return(-1);
return(0);
}
esint8 ioman_putSectorInCache(IOManager *ioman, euint32 address, euint16 bufplace)
{
euint8* buf;
if((buf = ioman_getPtr(ioman,bufplace))==0)return(-1);
if((ioman_readSector(ioman,address,buf)))return(-1);
ioman_setValid(bufplace);
ioman->sector[bufplace]=address;
return(0);
}
signed char ioman_putSectorInCache(IOManager *ioman, unsigned long address, unsigned short bufplace)
{
unsigned char* buf;
if((buf = ioman_getPtr(ioman,bufplace))==0){
ioman_setError(ioman,IOMAN_ERR_CACHEPTROUTOFRANGE);
return(-1);
}
if((ioman_readSector(ioman,address,buf))){
ioman_setError(ioman,IOMAN_ERR_READFAIL);
return(-1);
}
ioman_setValid(bufplace);
ioman->sector[bufplace]=address;
return(0);
}
esint8 ioman_putSectorInCache(IOManager *ioman, euint32 address, euint16 bufplace)
{
euint8* buf;
if((buf = ioman_getPtr(ioman,bufplace))==0){
ioman_setError(ioman,IOMAN_ERR_CACHEPTROUTOFRANGE);
return(-1);
}
if((ioman_readSector(ioman,address,buf))){
ioman_setError(ioman,IOMAN_ERR_READFAIL);
return(-1);
}
ioman_setValid(bufplace);
ioman->sector[bufplace]=address;
return(0);
}
signed char ioman_flushSector(IOManager *ioman, unsigned short bufplace)
{
unsigned char* buf;
if((buf = ioman_getPtr(ioman,bufplace))==0){
ioman_setError(ioman,IOMAN_ERR_CACHEPTROUTOFRANGE);
return(-1);
}
if(!ioman_isWritable(bufplace)){
ioman_setError(ioman,IOMAN_ERR_WRITEREADONLYSECTOR);
return(-1);
}
if(!(ioman_writeSector(ioman,ioman->sector[bufplace],buf))){
ioman_setError(ioman,IOMAN_ERR_WRITEFAIL);
return(-1);
}
if(ioman->usage==0)ioman_setNotWritable(bufplace);
return(0);
}