private void RecoverFromPage(long startRecoveryAddress,
long fromLogicalAddressInPage,
long untilLogicalAddressInPage,
long pageLogicalAddress,
long pagePhysicalAddress,
int version)
{
var hash = default(long);
var tag = default(ushort);
var pointer = default(long);
var recordStart = default(long);
var bucket = default(HashBucket *);
var entry = default(HashBucketEntry);
var slot = default(int);
pointer = fromLogicalAddressInPage;
while (pointer < untilLogicalAddressInPage)
{
recordStart = pagePhysicalAddress + pointer;
ref RecordInfo info = ref hlog.GetInfo(recordStart);
if (info.IsNull())
{
pointer += RecordInfo.GetLength();
continue;
}
if (!info.Invalid)
{
hash = comparer.GetHashCode64(ref hlog.GetKey(recordStart));
tag = (ushort)((ulong)hash >> Constants.kHashTagShift);
entry = default(HashBucketEntry);
FindOrCreateTag(hash, tag, ref bucket, ref slot, ref entry, hlog.BeginAddress);
if (info.Version <= version)
{
entry.Address = pageLogicalAddress + pointer;
entry.Tag = tag;
entry.Pending = false;
entry.Tentative = false;
bucket->bucket_entries[slot] = entry.word;
}
else
{
info.Invalid = true;
if (info.PreviousAddress < startRecoveryAddress)
{
entry.Address = info.PreviousAddress;
entry.Tag = tag;
entry.Pending = false;
entry.Tentative = false;
bucket->bucket_entries[slot] = entry.word;
}
}
}
pointer += hlog.GetRecordSize(recordStart);
}
