procedure TfmServer.IdTCPServer1Execute(AThread: TIdPeerThread);
var
aFileSize : Integer;
aFileName : String;
Buff : array[0..1023] of Byte;
ReadCount : Integer;
begin
with AThread.Data as TThreadData do
begin
if State = dstNone then
begin
if not AThread.Terminated and AThread.Connection.Connected then
begin
//读取文件名
aFileName := AThread.Connection.ReadLn(#13#10, 100);
if aFileName = '' then
Exit;
SaveDialog1.FileName := aFileName;
if SaveDialog1.Execute then
begin
//返回确认文件传输标志
AThread.Connection.WriteLn;
//开始读取文件长度,创建文件
AThread.Connection.ReadBuffer(aFileSize, 4);
FileSize := aFileSize;
ProgressBar1.Max := FileSize;
Stream := TFileStream.Create(SaveDialog1.FileName, fmCreate);
State := dstReceiving;
end
else
AThread.Connection.Disconnect
end;
end else begin
if not AThread.Terminated and AThread.Connection.Connected then
begin
//读取文件流
repeat
if FileSize - Stream.Size > SizeOf(Buff) then
ReadCount := SizeOf(Buff)
else
ReadCount := FileSize - Stream.Size;
AThread.Connection.ReadBuffer(Buff, ReadCount);
Stream.WriteBuffer(Buff, ReadCount);
ProgressBar1.Position := Stream.Size;
Caption := IntToStr(Stream.Size) + '/' + IntToStr(FileSize);
Application.ProcessMessages;
until Stream.Size >= FileSize;
AThread.Connection.WriteLn('OK');
Stream.Free;
Stream := nil;
State := dstNone;
end;
end;
end;
end;
{ TThreadData }
constructor TThreadData.Create;
begin
inherited;
Stream := nil;
end;
destructor TThreadData.Destroy;
begin
if Assigned(Stream) then
Stream.Free;
inherited;
end;
procedure TThreadData.SetFileSize(const Value: Integer);
begin
FFileSize := Value;
end;
procedure TThreadData.SetState(const Value: TDataState);
begin
FState := Value;
end;
procedure TfmServer.IdTCPServer1Connect(AThread: TIdPeerThread);
begin
AThread.Data := TThreadData.Create;
with AThread.Data as TThreadData do
begin
State := dstNone;
end;
end;
procedure TfmServer.IdTCPServer1Disconnect(AThread: TIdPeerThread);
begin
//(AThread.Data as TThreadData).Free;
end;
procedure TThreadData.SetStream(const Value: TFileStream);
begin
FStream := Value;
end;