private void CheckSumBuf(RedFS_Inode wip, Red_Buffer wb)
{
lock (fpcache_buf)
{
if (fpcache_cnt == 1024)
{
fpcache_cnt = 0;
clogfile.Write(fpcache_buf, 0, fpcache_buf.Length);
clogfile.Flush();
}
if (wb.get_level() == 0 && wip.get_wiptype() == WIP_TYPE.REGULAR_FILE)
{
fingerprintCLOG fpt = (fingerprintCLOG)fptemp;
fpt.fsid = wip.get_filefsid();
fpt.inode = wip.get_ino();
fpt.fbn = (int)wb.get_start_fbn();
fpt.dbn = wb.get_ondisk_dbn();
fpt.cnt = (int)clogfile.Position;
byte[] hash = md5.ComputeHash(wb.buf_to_data());
for (int i = 0; i < 16; i++)
{
fpt.fp[i] = hash[i];
}
fptemp.get_bytes(fpcache_buf, fpcache_cnt * fptemp.get_size());
fpcache_cnt++;
}
}
}
public bool read(Red_Buffer wb)
{
if (!initialized)
{
return(false);
}
//Array.Clear(wb.buf_to_data(), 0, 4096);
OPS.BZERO(wb.buf_to_data());
total_disk_reads++;
if (wb.get_ondisk_dbn() == 0)
{
return(true);
}
lock (dfile)
{
//DEFS.DEBUG("RAID", "Reading dbn : " + wb.get_ondisk_dbn() + " level : " + wb.get_level());
dfile.Seek((long)wb.get_ondisk_dbn() * 4096, SeekOrigin.Begin);
dfile.Read(wb.buf_to_data(), 0, 4096);
}
return(true);
}
public bool write(RedFS_Inode wip, Red_Buffer wb)
{
if (!initialized)
{
return(false);
}
total_disk_writes++;
lock (dfile)
{
//DEFS.DEBUG("RAID", "Writing dbn : " + wb.get_ondisk_dbn() + " level : " + wb.get_level());
dfile.Seek((long)wb.get_ondisk_dbn() * 4096, SeekOrigin.Begin);
dfile.Write(wb.buf_to_data(), 0, 4096);
dfile.Flush();
wb.set_dirty(false);
CheckSumBuf(wip, wb);
}
return(true);
}
public void mod_refcount(int fsid, int dbn, REFCNT_OP optype, Red_Buffer wb, bool isinodefilel0)
{
DEFS.ASSERT(optype == REFCNT_OP.INCREMENT_REFCOUNT || /*optype == REFCNT_OP.DECREMENT_REFCOUNT ||*/
optype == REFCNT_OP.TOUCH_REFCOUNT || /*optype == REFCNT_OP.DO_LOAD || */
optype == REFCNT_OP.INCREMENT_REFCOUNT_ALLOC ||
optype == REFCNT_OP.DECREMENT_REFCOUNT_ONDEALLOC, "Wrong param in mod_refcount");
DEFS.ASSERT(isinodefilel0 || (wb == null || wb.get_level() > 0), "wrong type to mod_refcount " + isinodefilel0 + (wb == null));
UpdateReqI r = new UpdateReqI();
r.optype = optype;
r.dbn = dbn;
r.fsid = fsid;
switch (optype)
{
case REFCNT_OP.INCREMENT_REFCOUNT:
case REFCNT_OP.INCREMENT_REFCOUNT_ALLOC:
r.value = 1;
break;
//case REFCNT_OP.DECREMENT_REFCOUNT:
case REFCNT_OP.DECREMENT_REFCOUNT_ONDEALLOC:
r.value = -1;
break;
case REFCNT_OP.TOUCH_REFCOUNT:
//case REFCNT_OP.DO_LOAD:
r.value = 0;
break;
}
r.blktype = (wb != null) ? ((isinodefilel0) ? BLK_TYPE.PUBLIC_INODE_FILE_L0 : wb.get_blk_type()) :
((optype == REFCNT_OP.INCREMENT_REFCOUNT_ALLOC || optype == REFCNT_OP.DECREMENT_REFCOUNT_ONDEALLOC)?
BLK_TYPE.IGNORE : BLK_TYPE.REGULAR_FILE_L0);
if (wb != null && (wb.get_level() > 0 || BLK_TYPE.PUBLIC_INODE_FILE_L0 == r.blktype))
{
lock (tfile0)
{
CONFIG.Encrypt_Data_ForWrite(tmpiodatatfileW, wb.buf_to_data());
tfile0.Seek((long)tfilefbn * 4096, SeekOrigin.Begin);
tfile0.Write(tmpiodatatfileW, 0, 4096);
//DEFS.DEBUG("ENCY", "Wrote : " + OPS.ChecksumPageWRLoader(wb.buf_to_data()));
r.tfbn = tfilefbn;
tfilefbn++;
}
}
else
{
r.tfbn = -1;
}
if (optype != REFCNT_OP.INCREMENT_REFCOUNT_ALLOC && optype != REFCNT_OP.DECREMENT_REFCOUNT &&
optype != REFCNT_OP.DECREMENT_REFCOUNT_ONDEALLOC && optype != REFCNT_OP.TOUCH_REFCOUNT)
{
DEFS.DEBUG("REFCNT", "Queued update for " + r.blktype + ", dbn = " +
r.dbn + ", and operation = " + r.optype + ", transaction offset : " + r.tfbn);
}
GLOBALQ.m_reqi_queue.Add(r);
}