public static int unpackString(byte[] arr, int offs, out string str, Encoding encoding)
{
int len = Bytes.unpack4(arr, offs);
offs += 4;
str = null;
if (len >= 0)
{
char[] chars = new char[len];
for (int i = 0; i < len; i++)
{
chars[i] = (char)Bytes.unpack2(arr, offs);
offs += 2;
}
str = new string(chars);
}
else if (len < -1)
{
if (encoding != null)
{
str = encoding.GetString(arr, offs, -2 - len);
}
else
{
str = Encoding.Default.GetString(arr, offs, -2 - len);
}
offs -= 2 + len;
}
return(offs);
}
protected ReplicationSlaveStorageImpl(String pageTimestampFilePath)
{
if (pageTimestampFilePath != null)
{
pageTimestampFile = new OSFile(pageTimestampFilePath, fileParameters);
long fileLength = pageTimestampFile.Length;
if (fileLength == 0)
{
pageTimestamps = new int[INIT_PAGE_TIMESTAMPS_LENGTH];
}
else
{
pageTimestamps = new int[(int)(fileLength / 4)];
byte[] page = new byte[Page.pageSize];
int i = 0;
for (long pos = 0; pos < fileLength; pos += Page.pageSize)
{
int rc = pageTimestampFile.Read(pos, page);
for (int offs = 0; offs < rc; offs += 4)
{
pageTimestamps[i++] = Bytes.unpack4(page, offs);
}
}
if (i != pageTimestamps.Length)
{
throw new StorageError(StorageError.ErrorCode.FILE_ACCESS_ERROR);
}
}
dirtyPageTimestampMap = new int[(((pageTimestamps.Length * 4 + Page.pageSize - 1) >> Page.pageSizeLog) + 31) >> 5];
}
}
internal void exportMultiFieldIndex(int oid, byte[] data)
{
Btree btree = new Btree(data, ObjectHeader.Sizeof);
storage.assignOid(btree, oid);
writer.Write(" <Perst.Impl.BtreeMultiFieldIndex id=\"" + oid + "\" unique=\"" + (btree.unique ? '1' : '0')
+ "\" class=");
int offs = exportString(data, Btree.Sizeof);
int nFields = Bytes.unpack4(data, offs);
offs += 4;
for (int i = 0; i < nFields; i++)
{
writer.Write(" field" + i + "=");
offs = exportString(data, offs);
}
writer.Write(">\n");
int nTypes = Bytes.unpack4(data, offs);
offs += 4;
compoundKeyTypes = new ClassDescriptor.FieldType[nTypes];
for (int i = 0; i < nTypes; i++)
{
compoundKeyTypes[i] = (ClassDescriptor.FieldType)Bytes.unpack4(data, offs);
offs += 4;
}
btree.export(this);
compoundKeyTypes = null;
writer.Write(" </Perst.Impl.BtreeMultiFieldIndex>\n");
}
public static decimal unpackDecimal(byte[] arr, int offs)
{
int[] bits = new int[4];
bits[0] = Bytes.unpack4(arr, offs);
bits[1] = Bytes.unpack4(arr, offs + 4);
bits[2] = Bytes.unpack4(arr, offs + 8);
bits[3] = Bytes.unpack4(arr, offs + 12);
return(new decimal(bits));
}
public static int skipString(byte[] arr, int offs)
{
int len = Bytes.unpack4(arr, offs);
offs += 4;
if (len >= 0)
{
offs += len * 2;
}
else if (len < -1)
{
offs -= len + 2;
}
return(offs);
}
void exportCompoundKey(byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
Debug.Assert(type == ClassDescriptor.FieldType.tpArrayOfByte);
int end = offs + size;
for (int i = 0; i < compoundKeyTypes.Length; i++)
{
type = compoundKeyTypes[i];
if (type == ClassDescriptor.FieldType.tpArrayOfByte || type == ClassDescriptor.FieldType.tpString)
{
size = Bytes.unpack4(body, offs);
offs += 4;
}
writer.Write(" key" + i + "=\"");
offs = exportKey(body, offs, size, type);
writer.Write("\"");
}
Debug.Assert(offs == end);
}
internal int exportBinary(byte[] body, int offs)
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
if (len == -2 - (int)ClassDescriptor.FieldType.tpObject)
{
exportRef(Bytes.unpack4(body, offs));
offs += 4;
}
else if (len < -1)
{
writer.Write("\"#");
writer.Write(hexDigit[-2 - len]);
len = ClassDescriptor.Sizeof[-2 - len];
while (--len >= 0)
{
byte b = body[offs++];
writer.Write(hexDigit[(b >> 4) & 0xF]);
writer.Write(hexDigit[b & 0xF]);
}
writer.Write('\"');
}
else
{
writer.Write("null");
}
}
else
{
writer.Write('\"');
while (--len >= 0)
{
byte b = body[offs++];
writer.Write(hexDigit[(b >> 4) & 0xF]);
writer.Write(hexDigit[b & 0xF]);
}
writer.Write('\"');
}
return(offs);
}
internal int exportString(byte[] body, int offs)
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len >= 0)
{
writer.Write("\"");
while (--len >= 0)
{
exportChar((char)Bytes.unpack2(body, offs));
offs += 2;
}
writer.Write("\"");
}
else if (len < -1)
{
writer.Write("\"");
string s;
if (storage.encoding != null)
{
s = storage.encoding.GetString(body, offs, -len - 2);
}
else
{
s = Encoding.Default.GetString(body, offs, -len - 2);
}
offs -= len + 2;
for (int i = 0, n = s.Length; i < n; i++)
{
exportChar(s[i]);
}
}
else
{
writer.Write("null");
}
return(offs);
}
public override int compareByteArrays(byte[] key, byte[] item, int offs, int lengtn)
{
int o1 = 0;
int o2 = offs;
byte[] a1 = key;
byte[] a2 = item;
for (int i = 0; i < types.Length && o1 < key.Length; i++)
{
int diff = 0;
switch (types[i])
{
case ClassDescriptor.FieldType.tpBoolean:
case ClassDescriptor.FieldType.tpByte:
diff = a1[o1++] - a2[o2++];
break;
case ClassDescriptor.FieldType.tpSByte:
diff = (sbyte)a1[o1++] - (sbyte)a2[o2++];
break;
case ClassDescriptor.FieldType.tpShort:
diff = Bytes.unpack2(a1, o1) - Bytes.unpack2(a2, o2);
o1 += 2;
o2 += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
diff = (ushort)Bytes.unpack2(a1, o1) - (ushort)Bytes.unpack2(a2, o2);
o1 += 2;
o2 += 2;
break;
case ClassDescriptor.FieldType.tpChar:
diff = (char)Bytes.unpack2(a1, o1) - (char)Bytes.unpack2(a2, o2);
o1 += 2;
o2 += 2;
break;
case ClassDescriptor.FieldType.tpInt:
{
int i1 = Bytes.unpack4(a1, o1);
int i2 = Bytes.unpack4(a2, o2);
diff = i1 < i2 ? -1 : i1 == i2 ? 0 : 1;
o1 += 4;
o2 += 4;
break;
}
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
{
uint u1 = (uint)Bytes.unpack4(a1, o1);
uint u2 = (uint)Bytes.unpack4(a2, o2);
diff = u1 < u2 ? -1 : u1 == u2 ? 0 : 1;
o1 += 4;
o2 += 4;
break;
}
case ClassDescriptor.FieldType.tpLong:
{
long l1 = Bytes.unpack8(a1, o1);
long l2 = Bytes.unpack8(a2, o2);
diff = l1 < l2 ? -1 : l1 == l2 ? 0 : 1;
o1 += 8;
o2 += 8;
break;
}
case ClassDescriptor.FieldType.tpULong:
case ClassDescriptor.FieldType.tpDate:
{
ulong l1 = (ulong)Bytes.unpack8(a1, o1);
ulong l2 = (ulong)Bytes.unpack8(a2, o2);
diff = l1 < l2 ? -1 : l1 == l2 ? 0 : 1;
o1 += 8;
o2 += 8;
break;
}
case ClassDescriptor.FieldType.tpFloat:
{
float f1 = Bytes.unpackF4(a1, o1);
float f2 = Bytes.unpackF4(a2, o2);
diff = f1 < f2 ? -1 : f1 == f2 ? 0 : 1;
o1 += 4;
o2 += 4;
break;
}
case ClassDescriptor.FieldType.tpDouble:
{
double d1 = Bytes.unpackF8(a1, o1);
double d2 = Bytes.unpackF8(a2, o2);
diff = d1 < d2 ? -1 : d1 == d2 ? 0 : 1;
o1 += 8;
o2 += 8;
break;
}
case ClassDescriptor.FieldType.tpDecimal:
{
decimal d1 = Bytes.unpackDecimal(a1, o1);
decimal d2 = Bytes.unpackDecimal(a2, o2);
diff = d1.CompareTo(d2);
o1 += 16;
o2 += 16;
break;
}
case ClassDescriptor.FieldType.tpGuid:
{
Guid g1 = Bytes.unpackGuid(a1, o1);
Guid g2 = Bytes.unpackGuid(a2, o2);
diff = g1.CompareTo(g2);
o1 += 16;
o2 += 16;
break;
}
case ClassDescriptor.FieldType.tpString:
{
int len1 = Bytes.unpack4(a1, o1);
int len2 = Bytes.unpack4(a2, o2);
o1 += 4;
o2 += 4;
int len = len1 < len2 ? len1 : len2;
while (--len >= 0)
{
diff = (char)Bytes.unpack2(a1, o1) - (char)Bytes.unpack2(a2, o2);
if (diff != 0)
{
return(diff);
}
o1 += 2;
o2 += 2;
}
diff = len1 - len2;
break;
}
case ClassDescriptor.FieldType.tpArrayOfByte:
{
int len1 = Bytes.unpack4(a1, o1);
int len2 = Bytes.unpack4(a2, o2);
o1 += 4;
o2 += 4;
int len = len1 < len2 ? len1 : len2;
while (--len >= 0)
{
diff = a1[o1++] - a2[o2++];
if (diff != 0)
{
return(diff);
}
}
diff = len1 - len2;
break;
}
default:
Debug.Assert(false, "Invalid type");
break;
}
if (diff != 0)
{
return(diff);
}
}
return(0);
}
protected override object unpackByteArrayKey(Page pg, int pos)
{
int offs = BtreePage.firstKeyOffs + BtreePage.getKeyStrOffs(pg, pos);
byte[] data = pg.data;
Object[] values = new Object[types.Length];
for (int i = 0; i < types.Length; i++)
{
Object v = null;
switch (types[i])
{
case ClassDescriptor.FieldType.tpBoolean:
v = data[offs++] != 0;
break;
case ClassDescriptor.FieldType.tpSByte:
v = (sbyte)data[offs++];
break;
case ClassDescriptor.FieldType.tpByte:
v = data[offs++];
break;
case ClassDescriptor.FieldType.tpShort:
v = Bytes.unpack2(data, offs);
offs += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
v = (ushort)Bytes.unpack2(data, offs);
offs += 2;
break;
case ClassDescriptor.FieldType.tpChar:
v = (char)Bytes.unpack2(data, offs);
offs += 2;
break;
case ClassDescriptor.FieldType.tpInt:
v = Bytes.unpack4(data, offs);
offs += 4;
break;
case ClassDescriptor.FieldType.tpUInt:
v = (uint)Bytes.unpack4(data, offs);
offs += 4;
break;
case ClassDescriptor.FieldType.tpOid:
case ClassDescriptor.FieldType.tpObject:
{
int oid = Bytes.unpack4(data, offs);
v = oid == 0 ? null : ((StorageImpl)Storage).lookupObject(oid, null);
offs += 4;
break;
}
case ClassDescriptor.FieldType.tpLong:
v = Bytes.unpack8(data, offs);
offs += 8;
break;
case ClassDescriptor.FieldType.tpDate:
{
v = new DateTime(Bytes.unpack8(data, offs));
offs += 8;
break;
}
case ClassDescriptor.FieldType.tpULong:
v = (ulong)Bytes.unpack8(data, offs);
offs += 8;
break;
case ClassDescriptor.FieldType.tpFloat:
v = Bytes.unpackF4(data, offs);
offs += 4;
break;
case ClassDescriptor.FieldType.tpDouble:
v = Bytes.unpackF8(data, offs);
offs += 8;
break;
case ClassDescriptor.FieldType.tpDecimal:
v = Bytes.unpackDecimal(data, offs);
offs += 16;
break;
case ClassDescriptor.FieldType.tpGuid:
v = Bytes.unpackGuid(data, offs);
offs += 16;
break;
case ClassDescriptor.FieldType.tpString:
{
int len = Bytes.unpack4(data, offs);
offs += 4;
char[] sval = new char[len];
for (int j = 0; j < len; j++)
{
sval[j] = (char)Bytes.unpack2(pg.data, offs);
offs += 2;
}
v = new String(sval);
break;
}
case ClassDescriptor.FieldType.tpArrayOfByte:
{
int len = Bytes.unpack4(data, offs);
offs += 4;
byte[] val = new byte[len];
Array.Copy(pg.data, offs, val, 0, len);
offs += len;
v = val;
break;
}
default:
Debug.Assert(false, "Invalid type");
break;
}
values[i] = v;
}
return(values);
}
internal static int getItem(Page pg, int index)
{
return(Bytes.unpack4(pg.data, firstKeyOffs + index * 4));
}
internal static int getSize(byte[] arr, int offs)
{
return(Bytes.unpack4(arr, offs));
}
internal void extract(Page pg, int offs, ClassDescriptor.FieldType type)
{
byte[] data = pg.data;
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
key = new Key(data[offs] != 0);
break;
case ClassDescriptor.FieldType.tpSByte:
key = new Key((sbyte)data[offs]);
break;
case ClassDescriptor.FieldType.tpByte:
key = new Key(data[offs]);
break;
case ClassDescriptor.FieldType.tpShort:
key = new Key(Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpUShort:
key = new Key((ushort)Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpChar:
key = new Key((char)Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpInt:
key = new Key(Bytes.unpack4(data, offs));
break;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
key = new Key((uint)Bytes.unpack4(data, offs));
break;
case ClassDescriptor.FieldType.tpLong:
key = new Key(Bytes.unpack8(data, offs));
break;
case ClassDescriptor.FieldType.tpDate:
case ClassDescriptor.FieldType.tpULong:
key = new Key((ulong)Bytes.unpack8(data, offs));
break;
case ClassDescriptor.FieldType.tpFloat:
key = new Key(Bytes.unpackF4(data, offs));
break;
case ClassDescriptor.FieldType.tpDouble:
key = new Key(Bytes.unpackF8(data, offs));
break;
case ClassDescriptor.FieldType.tpGuid:
key = new Key(Bytes.unpackGuid(data, offs));
break;
case ClassDescriptor.FieldType.tpDecimal:
key = new Key(Bytes.unpackDecimal(data, offs));
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
}
public void run()
{
try
{
byte[] buf = new byte[Page.pageSize + PAGE_DATA_OFFSET + (pageTimestamps != null ? 4 : 0)];
while (listening)
{
int offs = 0;
do
{
int rc = -1;
try
{
if (socket != null)
{
ArrayList recvSocks = new ArrayList(1);
recvSocks.Add(socket);
Socket.Select(recvSocks, null, null, replicationReceiveTimeout * 2000);
if (recvSocks.Count == 1)
{
rc = socket.Receive(buf, offs, buf.Length - offs, SocketFlags.None);
}
else
{
Console.WriteLine("Receive timeout expired");
}
}
}
catch (SocketException x)
{
Console.WriteLine("Failed to receive data from master: " + x);
rc = -1;
}
lock (done)
{
if (!listening)
{
return;
}
}
if (rc < 0)
{
HandleError();
hangup();
return;
}
else
{
offs += rc;
}
} while (offs < buf.Length);
long pos = Bytes.unpack8(buf, 0);
bool transactionCommit = false;
if (pos == 0)
{
if (replicationAck)
{
try
{
socket.Send(buf, 0, 1, SocketFlags.None);
}
catch (SocketException x)
{
Console.WriteLine("Failed to send request to master: " + x);
HandleError();
hangup();
return;
}
}
if (buf[PAGE_DATA_OFFSET + DB_HDR_CURR_INDEX_OFFSET] != prevIndex)
{
prevIndex = buf[PAGE_DATA_OFFSET + DB_HDR_CURR_INDEX_OFFSET];
lck.ExclusiveLock();
transactionCommit = true;
}
}
else if (pos == REPL_SYNC)
{
lock (sync)
{
outOfSync = false;
Monitor.Pulse(sync);
}
continue;
}
else if (pos == REPL_PING)
{
continue;
}
else if (pos == REPL_CLOSE)
{
hangup();
return;
}
if (pageTimestamps != null)
{
int pageNo = (int)(pos >> Page.pageSizeLog);
if (pageNo >= pageTimestamps.Length)
{
int newLength = pageNo >= pageTimestamps.Length * 2 ? pageNo + 1 : pageTimestamps.Length * 2;
int[] newPageTimestamps = new int[newLength];
Array.Copy(pageTimestamps, 0, newPageTimestamps, 0, pageTimestamps.Length);
pageTimestamps = newPageTimestamps;
int[] newDirtyPageTimestampMap = new int[(((newLength * 4 + Page.pageSize - 1) >> Page.pageSizeLog) + 31) >> 5];
Array.Copy(dirtyPageTimestampMap, 0, newDirtyPageTimestampMap, 0, dirtyPageTimestampMap.Length);
dirtyPageTimestampMap = newDirtyPageTimestampMap;
}
int timestamp = Bytes.unpack4(buf, Page.pageSize + PAGE_DATA_OFFSET);
pageTimestamps[pageNo] = timestamp;
dirtyPageTimestampMap[pageNo >> (Page.pageSizeLog - 2 + 5)] |= 1 << ((pageNo >> (Page.pageSizeLog - 2)) & 31);
}
Page pg = pool.putPage(pos);
Array.Copy(buf, PAGE_DATA_OFFSET, pg.data, 0, Page.pageSize);
pool.unfix(pg);
if (pos == 0)
{
if (!initialized && buf[PAGE_DATA_OFFSET + DB_HDR_INITIALIZED_OFFSET] != 0)
{
lock (init)
{
initialized = true;
Monitor.Pulse(init);
}
}
if (transactionCommit)
{
lck.Unlock();
lock (commit)
{
Monitor.PulseAll(commit);
}
if (listener != null)
{
listener.OnMasterDatabaseUpdate();
}
pool.flush();
if (pageTimestamps != null)
{
byte[] page = new byte[Page.pageSize];
for (int i = 0; i < dirtyPageTimestampMap.Length; i++)
{
if (dirtyPageTimestampMap[i] != 0)
{
for (int j = 0; j < 32; j++)
{
if ((dirtyPageTimestampMap[i] & (1 << j)) != 0)
{
int pageNo = (i << 5) + j;
int beg = pageNo << (Page.pageSizeLog - 2);
int end = beg + Page.pageSize / 4;
if (end > pageTimestamps.Length)
{
end = pageTimestamps.Length;
}
offs = 0;
while (beg < end)
{
Bytes.pack4(page, offs, pageTimestamps[beg]);
beg += 1;
offs += 4;
}
pageTimestampFile.Write(pageNo << Page.pageSizeLog, page);
}
}
}
dirtyPageTimestampMap[i] = 0;
}
pageTimestampFile.Sync();
}
}
}
}
}
finally
{
listening = false;
lock (init)
{
Monitor.Pulse(init);
}
lock (sync)
{
Monitor.Pulse(sync);
}
}
}
int exportKey(byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
writer.Write(body[offs++] != 0?"1":"0");
break;
case ClassDescriptor.FieldType.tpByte:
writer.Write(System.Convert.ToString((byte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpSByte:
writer.Write(System.Convert.ToString((sbyte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpChar:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpInt:
writer.Write(System.Convert.ToString(Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpEnum:
writer.Write(System.Convert.ToString((uint)Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpLong:
writer.Write(System.Convert.ToString(Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpULong:
writer.Write(System.Convert.ToString((ulong)Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpFloat:
writer.Write(System.Convert.ToString(Bytes.unpackF4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpDouble:
writer.Write(System.Convert.ToString(Bytes.unpackF8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpGuid:
writer.Write(Bytes.unpackGuid(body, offs).ToString());
offs += 16;
break;
case ClassDescriptor.FieldType.tpDecimal:
writer.Write(Bytes.unpackDecimal(body, offs).ToString());
offs += 16;
break;
case ClassDescriptor.FieldType.tpString:
for (int i = 0; i < size; i++)
{
exportChar((char)Bytes.unpack2(body, offs));
offs += 2;
}
break;
case ClassDescriptor.FieldType.tpArrayOfByte:
for (int i = 0; i < size; i++)
{
byte b = body[offs++];
writer.Write(hexDigit[(b >> 4) & 0xF]);
writer.Write(hexDigit[b & 0xF]);
}
break;
case ClassDescriptor.FieldType.tpDate:
writer.Write(Bytes.unpackDate(body, offs).ToString());
offs += 8;
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
return(offs);
}
private ReplicationMasterFile(ReplicationMasterStorageImpl storage, IFile file, string localhost, int port, string[] hosts, bool ack, String pageTimestampFilePath)
{
this.storage = storage;
this.file = file;
this.ack = ack;
this.localhost = localhost;
this.port = port;
mutex = new object();
replicas = new Replica[hosts.Length];
rcBuf = new byte[1];
nHosts = 0;
if (pageTimestampFilePath != null)
{
FileParameters fileParameters = storage != null ? storage.fileParameters : new FileParameters(false, false, false, 1024 * 1024);
pageTimestampFile = new OSFile(pageTimestampFilePath, fileParameters);
long fileLength = pageTimestampFile.Length;
if (fileLength == 0)
{
pageTimestamps = new int[InitPageTimestampsLength];
}
else
{
pageTimestamps = new int[(int)(fileLength / 4)];
byte[] page = new byte[Page.pageSize];
int i = 0;
for (long pos = 0; pos < fileLength; pos += Page.pageSize)
{
int rc = pageTimestampFile.Read(pos, page);
for (int offs = 0; offs < rc; offs += 4, i++)
{
pageTimestamps[i] = Bytes.unpack4(page, offs);
if (pageTimestamps[i] > timestamp)
{
timestamp = pageTimestamps[i];
}
}
}
if (i != pageTimestamps.Length)
{
throw new StorageError(StorageError.ErrorCode.FILE_ACCESS_ERROR);
}
}
dirtyPageTimestampMap = new int[(((pageTimestamps.Length * 4 + Page.pageSize - 1) >> Page.pageSizeLog) + 31) >> 5];
txBuf = new byte[12 + Page.pageSize];
}
else
{
txBuf = new byte[8 + Page.pageSize];
}
for (int i = 0; i < hosts.Length; i++)
{
replicas[i] = new Replica();
replicas[i].host = hosts[i];
Connect(i);
}
if (port >= 0)
{
storage.SetProperty("perst.alternative.btree", true); // prevent direct modification of pages
listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
listenSocket.Bind(new IPEndPoint(localhost != null && localhost != "localhost" ? IPAddress.Parse(localhost) : IPAddress.Any, port));
listenSocket.Listen(ListenQueueSize);
listening = true;
listenThread = new Thread(new ThreadStart(run));
listenThread.Start();
}
watchdogThread = new Thread(new ThreadStart(watchdog));
watchdogThread.Start();
}
void synchronizeNewSlaveNode(int i)
{
long size = storage.DatabaseSize;
int[] syncNodeTimestamps = null;
byte[] txBuf;
if (pageTimestamps != null)
{
txBuf = new byte[12 + Page.pageSize];
byte[] psBuf = new byte[4];
if (!Receive(i, psBuf))
{
Console.WriteLine("Failed to receive page timestamps length from slave node " + replicas[i].host);
return;
}
int psSize = Bytes.unpack4(psBuf, 0);
psBuf = new byte[psSize * 4];
if (!Receive(i, psBuf))
{
Console.WriteLine("Failed to receive page timestamps from slave node " + replicas[i].host);
return;
}
syncNodeTimestamps = new int[psSize];
for (int j = 0; j < psSize; j++)
{
syncNodeTimestamps[j] = Bytes.unpack4(psBuf, j * 4);
}
}
else
{
txBuf = new byte[8 + Page.pageSize];
}
for (long pos = 0; pos < size; pos += Page.pageSize)
{
int pageNo = (int)(pos >> Page.pageSizeLog);
if (syncNodeTimestamps != null)
{
if (pageNo < syncNodeTimestamps.Length &&
pageNo < pageTimestamps.Length &&
syncNodeTimestamps[pageNo] == pageTimestamps[pageNo])
{
continue;
}
}
lock (storage)
{
lock (storage.objectCache)
{
Page pg = storage.pool.getPage(pos);
Bytes.pack8(txBuf, 0, pos);
Array.Copy(pg.data, 0, txBuf, 8, Page.pageSize);
storage.pool.unfix(pg);
if (syncNodeTimestamps != null)
{
Bytes.pack4(txBuf, Page.pageSize + 8, pageNo < pageTimestamps.Length ? pageTimestamps[pageNo] : 0);
}
}
}
if (!Send(i, txBuf))
{
return;
}
if (ack && pos == 0 && !Receive(i, rcBuf))
{
Console.WriteLine("Failed to receive ACK from node " + replicas[i].host);
return;
}
}
Bytes.pack8(txBuf, 0, ReplicationSlaveStorageImpl.REPL_SYNC);
Send(i, txBuf);
}
internal int exportObject(ClassDescriptor desc, byte[] body, int offs, int indent)
{
ClassDescriptor.FieldDescriptor[] all = desc.allFields;
for (int i = 0, n = all.Length; i < n; i++)
{
ClassDescriptor.FieldDescriptor fd = all[i];
FieldInfo f = fd.field;
indentation(indent);
String fieldName = exportIdentifier(fd.fieldName);
writer.Write("<" + fieldName + ">");
switch (fd.type)
{
case ClassDescriptor.FieldType.tpBoolean:
writer.Write(body[offs++] != 0?"1":"0");
break;
case ClassDescriptor.FieldType.tpByte:
writer.Write(System.Convert.ToString((byte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpSByte:
writer.Write(System.Convert.ToString((sbyte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpChar:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpInt:
writer.Write(System.Convert.ToString(Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpEnum:
writer.Write(Enum.ToObject(f.FieldType, Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpUInt:
writer.Write(System.Convert.ToString((uint)Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpLong:
writer.Write(System.Convert.ToString(Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpULong:
writer.Write(System.Convert.ToString((ulong)Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpFloat:
writer.Write(System.Convert.ToString(Bytes.unpackF4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpDouble:
writer.Write(System.Convert.ToString(Bytes.unpackF8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpGuid:
writer.Write("\"" + Bytes.unpackGuid(body, offs) + "\"");
offs += 16;
break;
case ClassDescriptor.FieldType.tpDecimal:
writer.Write("\"" + Bytes.unpackDecimal(body, offs) + "\"");
offs += 16;
break;
case ClassDescriptor.FieldType.tpString:
offs = exportString(body, offs);
break;
case ClassDescriptor.FieldType.tpDate:
{
long msec = Bytes.unpack8(body, offs);
offs += 8;
if (msec >= 0)
{
writer.Write("\"" + new System.DateTime(msec) + "\"");
}
else
{
writer.Write("null");
}
break;
}
case ClassDescriptor.FieldType.tpObject:
exportRef(Bytes.unpack4(body, offs));
offs += 4;
break;
case ClassDescriptor.FieldType.tpValue:
writer.Write('\n');
offs = exportObject(fd.valueDesc, body, offs, indent + 1);
indentation(indent);
break;
#if SUPPORT_RAW_TYPE
case ClassDescriptor.FieldType.tpRaw:
#endif
case ClassDescriptor.FieldType.tpArrayOfByte:
case ClassDescriptor.FieldType.tpArrayOfSByte:
offs = exportBinary(body, offs);
break;
case ClassDescriptor.FieldType.tpArrayOfBoolean:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (body[offs++] != 0?"1":"0") + "</element>\n");
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfChar:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (Bytes.unpack2(body, offs) & 0xFFFF) + "</element>\n");
offs += 2;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfShort:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpack2(body, offs) + "</element>\n");
offs += 2;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfUShort:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (ushort)Bytes.unpack2(body, offs) + "</element>\n");
offs += 2;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfInt:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpack4(body, offs) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfEnum:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
Type elemType = f.FieldType.GetElementType();
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Enum.ToObject(elemType, Bytes.unpack4(body, offs)) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfUInt:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (uint)Bytes.unpack4(body, offs) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfLong:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpack8(body, offs) + "</element>\n");
offs += 8;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfULong:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + (ulong)Bytes.unpack8(body, offs) + "</element>\n");
offs += 8;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfFloat:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpackF4(body, offs) + "</element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfDouble:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>" + Bytes.unpackF8(body, offs) + "</element>\n");
offs += 8;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfDate:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>\"" + Bytes.unpackDate(body, offs) + "\"</element>\n");
offs += 8;
}
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfGuid:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
writer.Write("<element>\"" + Bytes.unpackGuid(body, offs) + "\"</element>\n");
offs += 16;
}
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfDecimal:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
writer.Write("<element>\"" + Bytes.unpackDecimal(body, offs) + "\"</element>\n");
offs += 16;
}
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfString:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>");
offs = exportString(body, offs);
writer.Write("</element>\n");
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpLink:
case ClassDescriptor.FieldType.tpArrayOfObject:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
int oid = Bytes.unpack4(body, offs);
if (oid != 0 && (exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0)
{
markedBitmap[oid >> 5] |= 1 << (oid & 31);
}
writer.Write("<element><ref id=\"" + oid + "\"/></element>\n");
offs += 4;
}
indentation(indent);
}
break;
}
case ClassDescriptor.FieldType.tpArrayOfValue:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>\n");
offs = exportObject(fd.valueDesc, body, offs, indent + 2);
indentation(indent + 1);
writer.Write("</element>\n");
}
indentation(indent);
}
break;
}
#if SUPPORT_RAW_TYPE
case ClassDescriptor.FieldType.tpArrayOfRaw:
{
int len = Bytes.unpack4(body, offs);
offs += 4;
if (len < 0)
{
writer.Write("null");
}
else
{
writer.Write('\n');
while (--len >= 0)
{
indentation(indent + 1);
writer.Write("<element>");
offs = exportBinary(body, offs);
writer.Write("</element>\n");
}
indentation(indent);
}
break;
}
#endif
}
writer.Write("</" + fieldName + ">\n");
}
return(offs);
}
