int PageDirectory::nextRecordPageID(FileHandle &fh, int pageid){
int pgentry = -1;
if (pageid == 0)
while (1) {
if (get_pgnum() != 0)
return get_pgid(0);
if (get_next() == 0)
return -1;
moveToNext(fh);
}
if((pgentry = locateRecordPage(fh, pageid)) == -1)
return -1;
if (pgentry < get_pgnum() - 1)
return get_pgid(pgentry + 1);
while (get_next() != 0) {
moveToNext(fh);
if (get_pgnum() != 0)
return get_pgid(0);
}
return -1;
}
int PageDirectory::firstPageWithFreelen(FileHandle& fh, int len){
while(1){
int num = get_pgnum();
for (int i = 0; i < num; i++)
if (get_pgfreelen(i) > len)
return get_pgid(i);
if(get_next() == 0)
return -1;
moveToNext(fh);
}
return -1;
}
int PageDirectory::locateRecordPage(FileHandle &fh, int pageid){
int pgentry = -1;
while (1) {
for (int i = 0; i < get_pgnum(); i++)
if (get_pgid(i) == pageid) {
pgentry = i;
break;
}
if (pgentry != -1)
break;
if (get_next() == 0)
return -1;
moveToNext(fh);
}
return pgentry;
}
buf[j++] = hexlist[aptr[i] & 0x0f];
else
buf[j++] = CLIF_NOT_SUPPLIED;
aptr = get_pgpct();
for (i=0; i<MAX_BANDWIDTH_GROUPS; i++) {
if (aptr[i] >= 0) {
buf[j++] = hexlist[(aptr[i] & 0xf0)>>4];
buf[j++] = hexlist[aptr[i] & 0x0f];
} else {
buf[j++] = CLIF_NOT_SUPPLIED;
buf[j++] = CLIF_NOT_SUPPLIED;
}
}
aptr = get_pgid();
for (i=0; i<MAX_USER_PRIORITIES; i++)
if (aptr[i] >= 0)
buf[j++] = hexlist[aptr[i] & 0x0f];
else
buf[j++] = CLIF_NOT_SUPPLIED;
aptr = get_uppct();
for (i=0; i<MAX_USER_PRIORITIES; i++) {
if (aptr[i] >= 0) {
buf[j++] = hexlist[(aptr[i] & 0xf0)>>4];
buf[j++] = hexlist[aptr[i] & 0x0f];
} else {
buf[j++] = CLIF_NOT_SUPPLIED;
buf[j++] = CLIF_NOT_SUPPLIED;
}
