/// <summary>
/// Query queue keys opened at server side
/// </summary>
/// <param name="gk">A callback for tracking a list of key names</param>
/// <param name="discarded">a callback for tracking cancel or socket closed event</param>
/// <returns>true for sending the request successfully, and false for failure</returns>
public virtual bool GetKeys(DGetKeys gk, DDiscarded discarded)
{
return(SendRequest(idGetKeys, (ar) =>
{
CUQueue q = ar.UQueue;
if (gk != null)
{
uint size;
q.Load(out size);
string[] v = new string[size];
for (uint n = 0; n < size; ++n)
{
byte[] bytes;
q.Load(out bytes);
if (bytes != null)
{
v[n] = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
}
}
gk((CAsyncQueue)ar.AsyncServiceHandler, v);
}
else
{
q.SetSize(0);
}
}, discarded, (DOnExceptionFromServer)null));
}
internal virtual void OnChatComing(tagChatRequestID chatRequestID)
{
uint svsId = ServerCoreLoader.GetSvsID(m_sh);
CUQueue q = m_qBuffer;
if (svsId != BaseServiceID.sidHTTP)
{
bool endian = false;
tagOperationSystem os = ServerCoreLoader.GetPeerOs(m_sh, ref endian);
q.Endian = endian;
q.OS = os;
}
switch (chatRequestID)
{
case tagChatRequestID.idEnter:
{
object objGroups;
q.Load(out objGroups);
OnSubscribe((uint[])objGroups);
}
break;
case tagChatRequestID.idExit:
{
OnUnsubscribe(ChatGroups);
}
break;
case tagChatRequestID.idSendUserMessage:
{
object msg;
string user;
q.Load(out user).Load(out msg);
OnSendUserMessage(user, msg);
}
break;
case tagChatRequestID.idSpeak:
{
object msg;
object groups;
q.Load(out groups).Load(out msg);
OnPublish(msg, (uint[])groups);
}
break;
default:
ServerCoreLoader.SendExceptionResult(m_sh, "Unexpected chat request", Environment.StackTrace, (ushort)chatRequestID, 0);
break;
}
}
public void LoadFrom(CUQueue UQueue)
{
int size;
Clear();
UQueue.Load(out size);
while (size > 0)
{
long n;
UQueue.Load(out n);
Add(n);
--size;
}
}
protected override void OnResultReturned(ushort sRequestId, CUQueue UQueue)
{
if (RouteeRequest)
{
switch (sRequestId)
{
case piConst.idComputePi:
{
double dStart;
double dStep;
int nNum;
UQueue.Load(out dStart).Load(out dStep).Load(out nNum);
double dX = dStart + dStep / 2;
double dd = dStep * 4.0;
double ComputeRtn = 0.0;
for (int n = 0; n < nNum; n++)
{
dX += dStep;
ComputeRtn += dd / (1 + dX * dX);
}
SendRouteeResult(ComputeRtn, dStart);
}
break;
default:
break;
}
}
}
void QueryPaymentMaxMinAvgs(CUQueue q, ulong reqIndex)
{
uint ret;
string filter;
q.Load(out filter);
//assuming slave pool has queue name set (request backup)
System.Diagnostics.Debug.Assert(CYourServer.Slave.QueueName.Length > 0);
ss.CMaxMinAvg pmma = new ss.CMaxMinAvg();
string sql = "SELECT MAX(amount),MIN(amount),AVG(amount) FROM payment";
if (filter != null && filter.Length > 0)
sql += (" WHERE " + filter);
var handler = CYourServer.Slave.SeekByQueue();
if (handler == null)
{
ret = SendResultIndex(reqIndex, ss.Consts.idQueryMaxMinAvgs, (int)-1, "No connection to a slave database", pmma);
return;
}
ulong peer_handle = Handle;
bool ok = handler.Execute(sql, (h, r, err, affected, fail_ok, vtId) =>
{
//send result if front peer not closed yet
if (peer_handle == Handle)
ret = SendResultIndex(reqIndex, ss.Consts.idQueryMaxMinAvgs, r, err, pmma);
}, (h, vData) =>
{
pmma.Max = double.Parse(vData[0].ToString());
pmma.Min = double.Parse(vData[1].ToString());
pmma.Avg = double.Parse(vData[2].ToString());
});
//should always be true because slave pool has queue name set for request backup
System.Diagnostics.Debug.Assert(ok);
}
void GetRentalDateTimes(CUQueue q, ulong reqIndex)
{
uint ret;
long rental_id;
q.Load(out rental_id);
//assuming slave pool has queue name set (request backup)
System.Diagnostics.Debug.Assert(CYourServer.Slave.QueueName.Length > 0);
ss.CRentalDateTimes myDates = new ss.CRentalDateTimes();
string sql = "SELECT rental_id,rental_date,return_date,last_update FROM rental where rental_id=" + rental_id;
var handler = CYourServer.Slave.SeekByQueue();
if (handler == null)
{
ret = SendResultIndex(reqIndex, ss.Consts.idGetRentalDateTimes, myDates, (int)-1, "No connection to a slave database");
return;
}
ulong peer_handle = Handle;
bool ok = handler.Execute(sql, (h, res, errMsg, affected, fail_ok, vtId) => {
//send result if front peer not closed yet
if (peer_handle == Handle)
{
ret = SendResultIndex(reqIndex, ss.Consts.idGetRentalDateTimes, myDates, res, errMsg);
}
}, (h, vData) => {
myDates.rental_id = long.Parse(vData[0].ToString());
myDates.Rental = (DateTime)vData[1];
myDates.Return = (DateTime)vData[2];
myDates.LastUpdate = (DateTime)vData[3];
});
//should always be true because slave pool has queue name set for request backup
System.Diagnostics.Debug.Assert(ok);
}
protected override void OnResultReturned(ushort sRequestId, CUQueue UQueue)
{
if (RouteeRequest)
{
switch (sRequestId)
{
case piConst.idComputePi:
{
double dStart;
double dStep;
int nNum;
UQueue.Load(out dStart).Load(out dStep).Load(out nNum);
double dX = dStart + dStep / 2;
double dd = dStep * 4.0;
double ComputeRtn = 0.0;
for (int n = 0; n < nNum; n++)
{
dX += dStep;
ComputeRtn += dd / (1 + dX * dX);
}
SendRouteeResult(ComputeRtn);
}
break;
default:
break;
}
}
}
private void EndBLOB()
{
Chunk();
object vt;
m_Blob.Load(out vt);
m_vParam.Add(vt);
}
private void Transferring()
{
CUQueue q = UQueue;
while (q.GetSize() > 0)
{
object vt;
q.Load(out vt);
m_vParam.Add(vt);
}
}
protected override void OnResultReturned(ushort reqId, CUQueue mc)
{
switch (reqId)
{
case idClose:
case idEnqueue:
mc.SetSize(0);
break;
case idBatchSizeNotified:
mc.Load(out m_nBatchSize);
break;
default:
break;
}
}
//make sure both serialization and de-serialization match against each other.
public void LoadFrom(CUQueue UQueue)
{
UQueue.Load(out NullString)
.Load(out ObjectNull)
.Load(out ADateTime)
.Load(out ADouble)
.Load(out ABool)
.Load(out UnicodeString) //UTF16-lowendian
.Load(out AsciiString)
.Load(out ObjBool)
.Load(out ObjString) //UTF16-lowendian
.Load(out objArrString) //UTF16-lowendian
.Load(out objArrInt)
;
}
//make sure both serialization and de-serialization match against each other.
public void LoadFrom(CUQueue UQueue)
{
UQueue.Load(out NullString)
.Load(out ObjectNull)
.Load(out ADateTime)
.Load(out ADouble)
.Load(out ABool)
.Load(out UnicodeString) //UTF16-lowendian
.Load(out AsciiString)
.Load(out ObjBool)
.Load(out ObjString) //UTF16-lowendian
.Load(out objArrString) //UTF16-lowendian
.Load(out objArrInt)
;
}
protected override void OnResultReturned(ushort reqId, CUQueue mc)
{
switch (reqId)
{
case idSQLGetInfo:
lock (m_csDB) {
m_mapInfo.Clear();
while (mc.GetSize() > 0)
{
ushort infoType;
object infoValue;
mc.Load(out infoType).Load(out infoValue);
m_mapInfo[infoType] = infoValue;
}
}
break;
default:
base.OnResultReturned(reqId, mc);
break;
}
}
internal void onRR(ushort reqId, CUQueue mc)
{
if (tagBaseRequestID.idInterrupt == (tagBaseRequestID)reqId)
{
ulong options;
mc.Load(out options);
OnInterrupted(options);
return;
}
MyKeyValue <ushort, CResultCb> p = GetAsyncResultHandler(reqId);
do
{
if (p != null && p.Value != null && p.Value.AsyncResultHandler != null)
{
m_ar.Reset(reqId, mc, p.Value.AsyncResultHandler);
p.Value.AsyncResultHandler.Invoke(m_ar);
break;
}
bool processed = false;
lock (m_cs)
{
foreach (DOnResultReturned r in m_lstRR)
{
if (r.Invoke(this, reqId, mc))
{
processed = true;
break;
}
}
}
if (processed)
{
break;
}
OnResultReturned(reqId, mc);
} while (false);
}
protected override void OnResultReturned(ushort reqId, CUQueue mc)
{
switch (reqId)
{
case idDBUpdate:
if (mc.GetSize() > 0)
{
int dbEventType;
string dbInstance, dbPath, tablePath;
object idRow;
mc.Load(out dbEventType).Load(out dbInstance).Load(out dbPath).Load(out tablePath).Load(out idRow);
if (DBEvent != null)
{
DBEvent(this, (tagUpdateEvent)dbEventType, dbInstance, dbPath, tablePath, idRow);
}
}
break;
default:
base.OnResultReturned(reqId, mc);
break;
}
}
void UploadEmployees(CUQueue q, ulong reqIndex)
{
uint ret;
KeyValuePair <int, string> error = new KeyValuePair <int, string>();
ss.CInt64Array vId = new ss.CInt64Array();
CDBVariantArray vData;
q.Load(out vData);
if (vData.Count == 0)
{
ret = SendResultIndex(reqIndex, ss.Consts.idUploadEmployees, (int)0, "", vId);
return;
}
else if ((vData.Count % 3) != 0)
{
ret = SendResultIndex(reqIndex, ss.Consts.idUploadEmployees, (int)-1, "Data array size is wrong", vId);
return;
}
//use master for insert, update and delete
var handler = CYourServer.Master.Lock(); //use Lock and Unlock to avoid SQL stream overlap on a session within a multi-thread environment
if (handler == null)
{
ret = SendResultIndex(reqIndex, ss.Consts.idUploadEmployees, (int)-2, "No connection to a master database", vId);
return;
}
CClientSocket cs = handler.AttachedClientSocket;
do
{
if (!handler.BeginTrans() || !handler.Prepare("INSERT INTO mysample.EMPLOYEE(CompanyId,Name,JoinDate)VALUES(?,?,?)"))
{
break;
}
bool ok = true;
CDBVariantArray v = new CDBVariantArray();
int rows = vData.Count / 3;
for (int n = 0; n < rows; ++n)
{
v.Add(vData[n * 3 + 0]);
v.Add(vData[n * 3 + 1]);
v.Add(vData[n * 3 + 2]);
ok = handler.Execute(v, (h, r, err, affected, fail_ok, vtId) => {
if (r != 0)
{
if (error.Key == 0)
{
error = new KeyValuePair <int, string>(r, err);
}
vId.Add(-1);
}
else
{
vId.Add(long.Parse(vtId.ToString()));
}
});
if (!ok)
{
break;
}
v.Clear();
}
if (!ok)
{
break;
}
ulong peer_handle = Handle;
if (!handler.EndTrans(tagRollbackPlan.rpRollbackErrorAll, (h, res, errMsg) => {
//send result if front peer not closed yet
if (peer_handle == Handle)
{
if (res != 0 && error.Key == 0)
{
error = new KeyValuePair <int, string>(res, errMsg);
}
ret = SendResultIndex(reqIndex, ss.Consts.idUploadEmployees, error.Key, error.Value, vId);
}
}, (h, canceled) => {
//send error message if front peer not closed yet
if (peer_handle == Handle)
{
//socket closed after requests are put on wire
if (error.Key == 0)
{
error = new KeyValuePair <int, string>(cs.ErrorCode, cs.ErrorMsg);
}
ret = SendResultIndex(reqIndex, ss.Consts.idUploadEmployees, error.Key, error.Value, vId);
}
}))
{
break;
}
//put handler back into pool as soon as possible for reuse as long as socket connection is not closed yet
CYourServer.Master.Unlock(handler);
return;
} while (false);
ret = SendResultIndex(reqIndex, ss.Consts.idUploadEmployees, cs.ErrorCode, cs.ErrorMsg, vId);
}
public void LoadFrom(CUQueue UQueue)
{
UQueue.Load(out rental_id).Load(out Rental).Load(out Return).Load(out LastUpdate);
}
public void LoadFrom(CUQueue UQueue)
{
UQueue.Load(out Max).Load(out Min).Load(out Avg);
}
private uint Pop(CUQueue UQueue, ref DataRow dr, ref DataRowState drs)
{
int n;
bool b;
string str;
byte bData = 0;
byte bOne = 1;
if (m_dts == null)
throw new ArgumentNullException("DataTable header is not de-serialized yet");
uint nSize = UQueue.GetSize();
if (dr == null)
throw new ArgumentNullException("Datarow object can't be null");
int nLen = m_dts.Length;
if (dr.ItemArray == null || dr.ItemArray.Length != m_dts.Length)
throw new InvalidOperationException("Wrong data row object");
object[] aData = new object[nLen];
uint nBits = (uint)(m_dts.Length / 8 + (((m_dts.Length % 8) != 0) ? 1 : 0));
byte[] aBit = new byte[nBits];
UQueue.Pop(out aBit, nBits);
for (n = 0; n < nLen; n++)
{
if ((n % 8) == 0)
bData = aBit[n / 8];
if ((bData & (bOne << (byte)(n % 8))) != 0)
{
aData[n] = DBNull.Value;
}
else
{
switch (m_dts[n])
{
case tagDataTypeSupported.dtBoolean:
{
bool myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtByte:
{
byte myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtChar:
{
char myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtDateTime:
{
DateTime myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtDecimal:
{
decimal myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtDouble:
{
double myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtFloat:
{
float myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtGuid:
{
Guid myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtUInt16:
{
ushort myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtUInt32:
{
uint myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtUInt64:
{
ulong myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtInt16:
{
short myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtInt32:
{
int myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtInt64:
{
long myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtUDT:
case tagDataTypeSupported.dtString:
{
string myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtValue:
case tagDataTypeSupported.dtValues:
case tagDataTypeSupported.dtChars:
case tagDataTypeSupported.dtBytes:
case tagDataTypeSupported.dtTimeSpan:
UQueue.Load(out aData[n]);
break;
default:
throw new InvalidOperationException("Unsupported data type for serialization");
}
}
}
dr.ItemArray = aData;
UQueue.Load(out bData);
drs = (DataRowState)bData;
UQueue.Load(out b);
if (b)
{
UQueue.Load(out str);
dr.RowError = str;
}
return (nSize - UQueue.GetSize());
}
protected override void OnResultReturned(ushort reqId, CUQueue mc)
{
switch (reqId)
{
case idDownload:
{
int res;
string errMsg;
mc.Load(out res).Load(out errMsg);
DDownload dl = null;
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
CContext ctx = m_vContext[0];
ctx.ErrCode = res;
ctx.ErrMsg = errMsg;
dl = ctx.Download;
}
}
if (dl != null)
{
dl.Invoke(this, res, errMsg);
}
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
CloseFile(m_vContext.RemoveFromFront());
}
}
OnPostProcessing(0, 0);
}
break;
case idStartDownloading:
lock (m_csFile)
{
long fileSize;
string localFile, remoteFile;
uint flags;
long initSize;
mc.Load(out fileSize).Load(out localFile).Load(out remoteFile).Load(out flags).Load(out initSize);
lock (m_csFile)
{
if (m_vContext.Count == 0)
{
CContext ctx = new CContext(false, flags);
ctx.LocalFile = localFile;
ctx.FilePath = remoteFile;
OpenLocalWrite(ctx);
ctx.InitSize = initSize;
m_vContext.AddToBack(ctx);
}
CContext context = m_vContext[0];
context.FileSize = fileSize;
initSize = (context.InitSize > 0) ? context.InitSize : 0;
if (context.File.Position > initSize)
{
context.File.SetLength(initSize);
}
}
}
break;
case idDownloading:
{
long downloaded = 0;
DTransferring trans = null;
CContext context = null;
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
context = m_vContext[0];
trans = context.Transferring;
byte[] buffer = mc.IntenalBuffer;
try
{
context.File.Write(buffer, 0, (int)mc.GetSize());
long initSize = (context.InitSize > 0) ? context.InitSize : 0;
downloaded = context.File.Position - initSize;
}
catch (System.IO.IOException err)
{
context.ErrMsg = err.Message;
#if NO_HRESULT
context.ErrCode = CANNOT_OPEN_LOCAL_FILE_FOR_WRITING;
#else
context.ErrCode = err.HResult;
#endif
}
}
}
mc.SetSize(0);
if (context != null && context.HasError)
{
if (context.Download != null)
{
context.Download.Invoke(this, context.ErrCode, context.ErrMsg);
}
CloseFile(m_vContext.RemoveFromFront());
OnPostProcessing(0, 0);
}
else if (trans != null)
{
trans.Invoke(this, downloaded);
}
}
break;
case idUploadBackup:
break;
case idUpload:
{
CContext context = null;
int res;
string errMsg;
mc.Load(out res).Load(out errMsg);
if (res != 0 || (errMsg != null && errMsg.Length > 0))
{
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
context = m_vContext[0];
mc.Load(out context.InitSize);
context.ErrCode = res;
context.ErrMsg = errMsg;
}
}
}
else
{
CClientSocket cs = Socket;
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
context = m_vContext[0];
mc.Load(out context.InitSize);
using (CScopeUQueue sb = new CScopeUQueue())
{
DAsyncResultHandler rh = null;
DOnExceptionFromServer se = null;
if (sb.UQueue.MaxBufferSize < STREAM_CHUNK_SIZE)
{
sb.UQueue.Realloc(STREAM_CHUNK_SIZE);
}
byte[] buffer = sb.UQueue.IntenalBuffer;
try
{
context.QueueOk = cs.ClientQueue.StartJob();
bool queue_enabled = cs.ClientQueue.Available;
if (queue_enabled)
{
SendRequest(idUploadBackup, context.FilePath, context.Flags, context.FileSize, context.InitSize, rh, context.Discarded, se);
}
int ret = context.File.Read(buffer, 0, (int)STREAM_CHUNK_SIZE);
while (ret == STREAM_CHUNK_SIZE)
{
if (!SendRequest(idUploading, buffer, (uint)ret, rh, context.Discarded, se))
{
context.ErrCode = cs.ErrorCode;
context.ErrMsg = cs.ErrorMsg;
break;
}
ret = context.File.Read(buffer, 0, (int)STREAM_CHUNK_SIZE);
if (queue_enabled)
{
//save file into client message queue
}
else if (cs.BytesInSendingBuffer > 40 * STREAM_CHUNK_SIZE)
{
break;
}
}
if (ret > 0 && !context.HasError)
{
if (!SendRequest(idUploading, buffer, (uint)ret, rh, context.Discarded, se))
{
context.ErrCode = cs.ErrorCode;
context.ErrMsg = cs.ErrorMsg;
}
}
if (ret < STREAM_CHUNK_SIZE && !context.HasError)
{
context.Sent = true;
SendRequest(idUploadCompleted, rh, context.Discarded, se);
if (context.QueueOk)
{
Socket.ClientQueue.EndJob();
}
}
}
catch (System.IO.IOException err)
{
errMsg = err.Message;
#if NO_HRESULT
res = CANNOT_OPEN_LOCAL_FILE_FOR_READING;
#else
res = err.HResult;
#endif
context.ErrCode = res;
context.ErrMsg = errMsg;
}
}
}
}
}
if (context != null && context.HasError)
{
if (context.Upload != null)
{
context.Upload.Invoke(this, context.ErrCode, context.ErrMsg);
}
lock (m_csFile)
{
CloseFile(m_vContext.RemoveFromFront());
}
if (context.QueueOk)
{
Socket.ClientQueue.AbortJob();
}
OnPostProcessing(0, 0);
}
}
break;
case idUploading:
{
int errCode = 0;
string errMsg = "";
CContext context = null;
DTransferring trans = null;
long uploaded;
mc.Load(out uploaded);
if (mc.GetSize() >= 8)
{
mc.Load(out errCode).Load(out errMsg);
}
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
context = m_vContext[0];
trans = context.Transferring;
if (uploaded < 0 || errCode != 0 || errMsg.Length != 0)
{
context.ErrCode = errCode;
context.ErrMsg = errMsg;
CloseFile(context);
}
else if (!context.Sent)
{
using (CScopeUQueue sb = new CScopeUQueue())
{
DAsyncResultHandler rh = null;
DOnExceptionFromServer se = null;
if (sb.UQueue.MaxBufferSize < STREAM_CHUNK_SIZE)
{
sb.UQueue.Realloc(STREAM_CHUNK_SIZE);
}
byte[] buffer = sb.UQueue.IntenalBuffer;
try
{
int ret = context.File.Read(buffer, 0, (int)STREAM_CHUNK_SIZE);
if (ret > 0)
{
SendRequest(idUploading, buffer, (uint)ret, rh, context.Discarded, se);
}
if (ret < STREAM_CHUNK_SIZE)
{
context.Sent = true;
SendRequest(idUploadCompleted, rh, context.Discarded, se);
}
}
catch (System.IO.IOException err)
{
context.ErrMsg = err.Message;
#if NO_HRESULT
context.ErrCode = CANNOT_OPEN_LOCAL_FILE_FOR_READING;
#else
context.ErrCode = err.HResult;
#endif
}
}
}
}
}
if (context != null && context.HasError)
{
if (context.Upload != null)
{
context.Upload.Invoke(this, context.ErrCode, context.ErrMsg);
}
lock (m_csFile)
{
CloseFile(m_vContext.RemoveFromFront());
}
OnPostProcessing(0, 0);
}
else if (trans != null)
{
trans.Invoke(this, uploaded);
}
}
break;
case idUploadCompleted:
{
DUpload upl = null;
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
if (m_vContext[0].File != null)
{
upl = m_vContext[0].Upload;
}
else
{
m_vContext[0].QueueOk = false;
m_vContext[0].Sent = false;
CloseFile(m_vContext[0]);
}
}
}
if (upl != null)
{
upl.Invoke(this, 0, "");
}
lock (m_csFile)
{
if (m_vContext.Count > 0)
{
if (m_vContext[0].File != null)
{
CloseFile(m_vContext.RemoveFromFront());
}
}
}
OnPostProcessing(0, 0);
}
break;
default:
base.OnResultReturned(reqId, mc);
break;
}
}
DataSet LoadDataSetHeader(CUQueue UQueue)
{
if (UQueue.GetSize() == 0)
return null;
string str = null;
byte bData = 0;
DataSet ds = new DataSet();
m_ds = ds;
UQueue.Load(out m_nAffected);
UQueue.Load(out bData);
ds.CaseSensitive = ((bData & 2) == 2);
ds.EnforceConstraints = ((bData & 4) == 4);
UQueue.Load(out str);
ds.DataSetName = str;
UQueue.Load(out str);
ds.Namespace = str;
UQueue.Load(out str);
ds.Prefix = str;
return ds;
}
public CUQueue Load <T>(out T receiver)
{
m_UQueue.Load <T>(out receiver);
return(m_UQueue);
}
private uint PopTableColNamesOnly(CUQueue UQueue, ref DataColumn[] dcs)
{
int n;
int count;
int ordinal;
string tableName;
uint start = UQueue.GetSize();
UQueue.Load(out count);
dcs = new DataColumn[count];
for (n = 0; n < count; ++n)
{
UQueue.Load(out tableName);
UQueue.Load(out ordinal);
dcs[n] = CurrentDataSet.Tables[tableName].Columns[ordinal];
}
return (start - UQueue.GetSize());
}
private uint Pop(CUQueue UQueue, ref DataColumn[] dcs)
{
int n;
int nSize;
uint nLen = UQueue.GetSize();
UQueue.Load(out nSize);
if (nSize == -1)
{
dcs = null;
}
else
{
if (dcs == null || dcs.Length != nSize)
dcs = new DataColumn[nSize];
for (n = 0; n < nSize; n++)
{
Pop(UQueue, ref dcs[n]);
}
}
return (nLen - UQueue.GetSize());
}
private uint Pop(CUQueue UQueue, out ForeignKeyConstraint fkc)
{
bool b;
uint nSize = UQueue.GetSize();
UQueue.Load(out b);
if (b) //null
{
fkc = null;
}
else
{
byte bData = 0;
string str = null;
DataColumn[] dcsChild = null;
Pop(UQueue, ref dcsChild);
DataColumn[] dcsParent = null;
Pop(UQueue, ref dcsParent);
fkc = new ForeignKeyConstraint(dcsParent, dcsChild);
UQueue.Load(out str);
fkc.ConstraintName = str;
UQueue.Load(out bData);
fkc.AcceptRejectRule = (AcceptRejectRule)bData;
UQueue.Load(out bData);
fkc.UpdateRule = (Rule)bData;
UQueue.Load(out bData);
fkc.DeleteRule = (Rule)bData;
}
return (nSize - UQueue.GetSize());
}
private uint Pop(CUQueue UQueue, ref UniqueConstraint uc)
{
bool bNull = false;
uint nSize = UQueue.GetSize();
UQueue.Load(out bNull);
if (!bNull)
{
string str;
DataColumn[] dcs = null;
bool b;
Pop(UQueue, ref dcs);
UQueue.Load(out str);
UQueue.Load(out b);
uc = new UniqueConstraint(str, dcs, b);
}
return nSize - UQueue.GetSize();
}
private DataTable LoadDataTableHeader(CUQueue UQueue)
{
int n;
bool bNeedChildRelations;
bool bNeedbParentRelations;
if (UQueue.GetSize() == 0)
return null;
int nData = 0;
byte bData = 0;
string str = null;
DataTable dt = new DataTable();
m_dt = dt;
m_bLoadingDataTable = true;
UQueue.Load(out m_nAffected);
UQueue.Load(out bData);
bNeedChildRelations = ((bData & 2) == 2);
bNeedbParentRelations = ((bData & 4) == 4);
DataColumnCollection dcc = dt.Columns;
UQueue.Load(out str);
dt.TableName = str;
Pop(UQueue, ref dcc);
m_dts = new tagDataTypeSupported[dcc.Count];
for (n = 0; n < dcc.Count; n++)
{
m_dts[n] = GetDT(dcc[n].DataType.FullName);
}
UQueue.Load(out str);
dt.DisplayExpression = str;
UQueue.Load(out nData);
dt.MinimumCapacity = nData;
UQueue.Load(out str);
dt.Namespace = str;
UQueue.Load(out str);
dt.Prefix = str;
UQueue.Load(out nData);
DataColumn[] pk = new DataColumn[nData];
for (n = 0; n < nData; n++)
{
UQueue.Load(out nData);
pk[n] = dt.Columns[nData];
}
dt.PrimaryKey = pk;
if (bNeedbParentRelations)
{
DataRelationCollection drc = dt.ParentRelations;
Pop(UQueue, ref drc);
}
if (bNeedChildRelations)
{
DataRelationCollection drc = dt.ChildRelations;
Pop(UQueue, ref drc);
}
if (UQueue.GetSize() >= 4)
{
UQueue.Load(out m_nBatchSize);
}
else
{
m_nBatchSize = 0;
}
return dt;
}
protected override void OnResultReturned(ushort reqId, CUQueue mc)
{
switch (reqId)
{
case idDownload:
{
int res;
string errMsg;
mc.Load(out res).Load(out errMsg);
DDownload dl;
lock (m_csFile)
{
CContext context = m_vContext[0];
if (context.File != null)
{
context.File.Close();
context.File = null;
}
else if (res == 0)
{
res = CANNOT_OPEN_LOCAL_FILE_FOR_WRITING;
errMsg = context.ErrMsg;
}
dl = context.Download;
}
if (dl != null)
{
dl(this, res, errMsg);
}
lock (m_csFile)
{
m_vContext.RemoveFromFront();
}
}
break;
case idStartDownloading:
lock (m_csFile)
{
CContext context = m_vContext[0];
mc.Load(out context.FileSize);
try
{
FileMode fm;
if ((context.Flags & FILE_OPEN_TRUNCACTED) == FILE_OPEN_TRUNCACTED)
{
fm = FileMode.Create;
}
else if ((context.Flags & FILE_OPEN_APPENDED) == FILE_OPEN_APPENDED)
{
fm = FileMode.Append;
}
else
{
fm = FileMode.OpenOrCreate;
}
FileShare fs = FileShare.None;
if ((context.Flags & FILE_OPEN_SHARE_WRITE) == FILE_OPEN_SHARE_WRITE)
{
fs = FileShare.Write;
}
context.File = new FileStream(context.LocalFile, fm, FileAccess.Write, fs);
}
catch (Exception err)
{
context.ErrMsg = err.Message;
}
finally { }
}
break;
case idDownloading:
{
long downloaded = -1;
DTransferring trans = null;
lock (m_cs)
{
CContext context = m_vContext[0];
trans = context.Transferring;
if (context.File != null)
{
byte[] buffer = mc.IntenalBuffer;
context.File.Write(buffer, 0, (int)mc.GetSize());
downloaded = context.File.Position;
}
}
mc.SetSize(0);
if (trans != null)
{
trans(this, downloaded);
}
}
break;
case idUpload:
{
bool removed = false;
DUpload upl = null;
int res;
string errMsg;
mc.Load(out res).Load(out errMsg);
if (res != 0)
{
lock (m_csFile)
{
CContext context = m_vContext[0];
removed = true;
upl = context.Upload;
if (context.File != null)
{
context.File.Close();
}
}
}
if (upl != null)
{
upl(this, res, errMsg);
}
if (removed)
{
lock (m_csFile)
{
m_vContext.RemoveFromFront();
}
}
}
break;
case idUploading:
{
DTransferring trans = null;
long uploaded;
mc.Load(out uploaded);
if (uploaded > 0)
{
lock (m_csFile)
{
CContext context = m_vContext[0];
trans = context.Transferring;
}
}
if (trans != null)
{
trans(this, uploaded);
}
}
break;
case idUploadCompleted:
{
DUpload upl = null;
lock (m_csFile)
{
CContext context = m_vContext[0];
upl = context.Upload;
if (context.File != null)
{
context.File.Close();
context.File = null;
}
}
if (upl != null)
{
upl(this, 0, "");
}
lock (m_csFile)
{
m_vContext.RemoveFromFront();
}
}
break;
default:
base.OnResultReturned(reqId, mc);
break;
}
lock (m_csFile)
{
Transfer();
}
}
private uint PopDataRecord(CUQueue UQueue, ref object[] aData)
{
int n;
byte bData = 0;
byte bOne = 1;
if (m_dts == null)
throw new InvalidOperationException("DataTable header is not de-serialized yet");
uint nSize = UQueue.GetSize();
int nLen = m_dts.Length;
if (aData == null || aData.Length != nLen)
aData = new object[nLen];
uint nBits = (uint)(m_dts.Length / 8 + (((m_dts.Length % 8) != 0) ? 1 : 0));
byte[] aBit = new byte[nBits];
UQueue.Pop(out aBit, nBits);
for (n = 0; n < nLen; n++)
{
if ((n % 8) == 0)
bData = aBit[n / 8];
if ((bData & (bOne << (byte)(n % 8))) != 0)
{
aData[n] = DBNull.Value;
}
else
{
switch (m_dts[n])
{
case tagDataTypeSupported.dtBoolean:
{
bool myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtByte:
{
byte myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtChar:
{
char myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtDateTime:
{
DateTime myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtDecimal:
{
decimal myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtDouble:
{
double myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtFloat:
{
float myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtGuid:
{
Guid myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtInt16:
{
short myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtInt32:
{
int myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtInt64:
{
long myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtUDT:
case tagDataTypeSupported.dtString:
{
string myData;
UQueue.Load(out myData);
aData[n] = myData;
}
break;
case tagDataTypeSupported.dtBytes:
{
byte[] buffer;
uint nBytes;
UQueue.Load(out nBytes);
UQueue.Pop(out buffer, nBytes);
aData[n] = buffer;
}
break;
case tagDataTypeSupported.dtUInt64:
case tagDataTypeSupported.dtUInt32:
case tagDataTypeSupported.dtUInt16:
case tagDataTypeSupported.dtValue:
case tagDataTypeSupported.dtValues:
case tagDataTypeSupported.dtTimeSpan:
UQueue.Load(out aData[n]);
break;
default:
throw new InvalidOperationException("Unsupported data type for serialization");
}
}
}
return (nSize - UQueue.GetSize());
}
private uint Pop(CUQueue UQueue, ref DataColumnCollection Cols)
{
bool bNull = false;
uint nSize = UQueue.GetSize();
UQueue.Load(out bNull);
if (bNull)
Cols = null;
else
{
int n;
int nLen;
DataColumn dc = null;
Cols.Clear();
UQueue.Load(out nLen);
for (n = 0; n < nLen; n++)
{
Pop(UQueue, ref dc);
Cols.Add(dc);
dc = null;
}
}
return (nSize - UQueue.GetSize());
}
private DataTable LoadDataReaderHeader(CUQueue UQueue)
{
int n;
int nData;
short sData;
string str;
int nFieldCount;
if (UQueue.GetSize() == 0)
return null;
m_dt = new DataTable();
DataTable dt = m_dt;
m_bLoadingDataTable = false;
UQueue.Load(out nFieldCount);
UQueue.Load(out m_nAffected);
m_dts = new tagDataTypeSupported[nFieldCount];
for (n = 0; n < nFieldCount; n++)
{
UQueue.Load(out sData);
m_dts[n] = (tagDataTypeSupported)sData;
}
m_qTemp.SetSize(0);
for (n = 0; n < nFieldCount; n++)
{
UQueue.Load(out nData);
DataColumn dc = new DataColumn();
dc.DataType = GetType(m_dts[n]);
dc.AllowDBNull = ((nData & (int)tagColumnBit.cbAllowDBNull) == (int)tagColumnBit.cbAllowDBNull);
dc.AutoIncrement = ((nData & (int)tagColumnBit.cbIsAutoIncrement) == (int)tagColumnBit.cbIsAutoIncrement);
dc.ReadOnly = ((nData & (int)tagColumnBit.cbIsReadOnly) == (int)tagColumnBit.cbIsReadOnly);
dc.Unique = ((nData & (int)tagColumnBit.cbIsUnique) == (int)tagColumnBit.cbIsUnique);
bool cbIsLong = ((nData & (int)tagColumnBit.cbIsLong) == (int)tagColumnBit.cbIsLong);
if ((nData & (int)tagColumnBit.cbIsKey) == (int)tagColumnBit.cbIsKey)
{
m_qTemp.Save(n);
}
UQueue.Load(out nData);
if (nData > 0 && !cbIsLong && (m_dts[n] == tagDataTypeSupported.dtString || m_dts[n] == tagDataTypeSupported.dtChars))
{
dc.MaxLength = nData; //ColumnSize
}
UQueue.Load(out str);
dc.ColumnName = str;
dt.Columns.Add(dc);
}
if (m_qTemp.GetSize() > 0)
{
int nIndex = 0;
DataColumn[] dcs = new DataColumn[m_qTemp.GetSize() / 4];
while (m_qTemp.GetSize() > 0)
{
m_qTemp.Load(out nData);
DataColumn dc = dt.Columns[nData];
dcs[nIndex] = dc;
++nIndex;
}
dt.PrimaryKey = dcs;
}
if (UQueue.GetSize() >= 4)
{
UQueue.Load(out m_nBatchSize);
}
else
{
m_nBatchSize = 0;
}
return dt;
}
protected override void OnResultReturned(ushort reqId, CUQueue mc)
{
switch (reqId)
{
case DB_CONSTS.idRowsetHeader:
{
m_Blob.SetSize(0);
if (m_Blob.MaxBufferSize > ONE_MEGA_BYTES)
{
m_Blob.Realloc(ONE_MEGA_BYTES);
}
CDBColumnInfoArray vColInfo;
mc.Load(out vColInfo).Load(out m_indexRowset);
KeyValuePair <DRowsetHeader, DRows> p = new KeyValuePair <DRowsetHeader, DRows>();
lock (m_csCache)
{
m_vData.Clear();
if (m_mapRowset.ContainsKey(m_indexRowset))
{
p = m_mapRowset[m_indexRowset];
}
}
if (p.Key != null)
{
p.Key.Invoke(vColInfo);
}
}
break;
case DB_CONSTS.idBeginRows:
m_Blob.SetSize(0);
m_vData.Clear();
break;
case DB_CONSTS.idTransferring:
while (mc.GetSize() > 0)
{
object vt;
mc.Load(out vt);
m_vData.Add(vt);
}
break;
case DB_CONSTS.idEndRows:
if (mc.GetSize() > 0 || m_vData.Count > 0)
{
object vt;
while (mc.GetSize() > 0)
{
mc.Load(out vt);
m_vData.Add(vt);
}
DRows row = null;
lock (m_csCache)
{
if (m_mapRowset.ContainsKey(m_indexRowset))
{
row = m_mapRowset[m_indexRowset].Value;
}
}
if (row != null)
{
row.Invoke(m_vData);
}
}
m_vData.Clear();
break;
case DB_CONSTS.idStartBLOB:
{
m_Blob.SetSize(0);
uint len;
mc.Load(out len);
if (len != uint.MaxValue && len > m_Blob.MaxBufferSize)
{
m_Blob.Realloc(len);
}
m_Blob.Push(mc.IntenalBuffer, mc.HeadPosition, mc.GetSize());
mc.SetSize(0);
}
break;
case DB_CONSTS.idChunk:
m_Blob.Push(mc.IntenalBuffer, mc.GetSize());
mc.SetSize(0);
break;
case DB_CONSTS.idEndBLOB:
if (mc.GetSize() > 0 || m_Blob.GetSize() > 0)
{
m_Blob.Push(mc.IntenalBuffer, mc.GetSize());
mc.SetSize(0);
unsafe
{
fixed(byte *p = m_Blob.IntenalBuffer)
{
uint *len = (uint *)(p + m_Blob.HeadPosition + sizeof(ushort));
if (*len >= BLOB_LENGTH_NOT_AVAILABLE)
{
//length should be reset if BLOB length not available from server side at beginning
*len = (m_Blob.GetSize() - sizeof(ushort) - sizeof(uint));
}
}
}
object vt;
m_Blob.Load(out vt);
m_vData.Add(vt);
}
break;
default:
base.OnResultReturned(reqId, mc);
break;
}
}
private uint Pop(CUQueue UQueue, ref DataColumn dc)
{
bool bNull;
uint nLen = UQueue.GetSize();
UQueue.Load(out bNull);
if (bNull)
dc = null;
else
{
int nData;
object ob;
short sData;
string str;
long lData;
byte bData;
UQueue.Load(out bData);
if (dc == null)
dc = new DataColumn();
dc.AllowDBNull = ((bData & (int)tagColumnBit.cbAllowDBNull) == (int)tagColumnBit.cbAllowDBNull);
dc.AutoIncrement = ((bData & (int)tagColumnBit.cbIsAutoIncrement) == (int)tagColumnBit.cbIsAutoIncrement);
dc.ReadOnly = ((bData & (int)tagColumnBit.cbIsReadOnly) == (int)tagColumnBit.cbIsReadOnly);
dc.Unique = ((bData & (int)tagColumnBit.cbIsUnique) == (int)tagColumnBit.cbIsUnique);
UQueue.Load(out lData);
dc.AutoIncrementSeed = lData;
UQueue.Load(out lData);
dc.AutoIncrementStep = lData;
UQueue.Load(out str);
dc.Caption = str;
UQueue.Load(out bData);
dc.ColumnMapping = (MappingType)bData;
UQueue.Load(out str);
dc.ColumnName = str;
UQueue.Load(out sData);
dc.DataType = GetType((tagDataTypeSupported)sData);
/* UQueue.Pop(out bData);
dc.DateTimeMode = (DataSetDateTime)bData;*/
UQueue.Load(out ob);
dc.DefaultValue = ob;
UQueue.Load(out str);
dc.Expression = str;
UQueue.Load(out nData);
dc.MaxLength = nData;
UQueue.Load(out str);
dc.Namespace = str;
UQueue.Load(out str);
dc.Prefix = str;
}
return (nLen - UQueue.GetSize());
}
private void OnReqArrive(ulong hSocket, ushort usRequestID, uint len)
{
CSocketPeer sp = Seek(hSocket);
if (sp == null)
{
return;
}
sp.m_CurrReqID = usRequestID;
CUQueue q = sp.m_qBuffer;
q.SetSize(0);
if (len > q.MaxBufferSize)
{
q.Realloc(len);
}
if (len > 0)
{
uint res;
unsafe
{
fixed(byte *buffer = q.m_bytes)
{
if (m_nMainThreads <= 1)
{
CUQueue.CopyMemory(buffer, (void *)ServerCoreLoader.GetRequestBuffer(hSocket), len);
res = len;
}
else
{
res = ServerCoreLoader.RetrieveBuffer(hSocket, len, buffer, false);
}
}
}
System.Diagnostics.Debug.Assert(res == len);
q.SetSize(res);
}
if (m_svsId != BaseServiceID.sidHTTP)
{
q.OS = sp.m_os;
q.Endian = sp.m_endian;
if ((tagBaseRequestID)usRequestID == tagBaseRequestID.idInterrupt)
{
CClientPeer cp = (CClientPeer)sp;
ulong options;
q.Load(out options);
cp.OnIntNotified(options);
return;
}
}
else
{
CHttpPeerBase hp = (CHttpPeerBase)sp;
hp.m_WebRequestName = null;
hp.m_vArg.Clear();
if (usRequestID == (ushort)tagHttpRequestID.idUserRequest)
{
uint count;
sbyte[] reqName;
q.Load(out reqName);
hp.m_WebRequestName = CUQueue.ToString(reqName);
q.Load(out count);
for (uint n = 0; n < count; ++n)
{
object arg;
q.Load(out arg);
hp.m_vArg.Add(arg);
}
}
}
sp.OnRArrive(usRequestID, len);
}
private uint Pop(CUQueue UQueue, ref DataRelationCollection drc)
{
int n;
string str;
bool b;
int nData;
uint nSize = UQueue.GetSize();
UQueue.Load(out nData);
drc.Clear();
for (n = 0; n < nData; n++)
{
DataColumn[] dcsChild = null;
PopTableColNamesOnly(UQueue, ref dcsChild);
UQueue.Load(out b);
UQueue.Load(out str);
DataColumn[] dcsParent = null;
PopTableColNamesOnly(UQueue, ref dcsParent);
DataRelation dr = new DataRelation(str, dcsParent, dcsChild);
dr.Nested = b;
drc.Add(dr);
}
return (nSize - UQueue.GetSize());
}
