LPPER_IO_OPERATION_DATA = ^ PER_IO_OPERATION_DATA ;
PER_IO_OPERATION_DATA = packed record
Overlapped: OVERLAPPED;
DataBuf: TWSABUF;
Buffer: array [0..1024] of CHAR;
BytesSEND: DWORD;
BytesRECV: DWORD;
end;
PER_HANDLE_DATA = packed record
Socket: TSocket;
end;
begin
WSACleanup();
end;
GetSystemInfo(LocalSI);
for I:=0 to LocalSI.dwNumberOfProcessors * 2 -1 do
begin
hThread := CreateThread(nil, 0, @ServerWorkerThread, Pointer(CompletionPort),0, ThreadID);
if (hThread = 0) then
begin
Exit;
end;
CloseHandle(hThread);
end;
Listensc:=WSASocket(AF_INET,SOCK_STREAM,0,Nil,0,WSA_FLAG_OVERLAPPED);
if Listensc=SOCKET_ERROR then
begin
closesocket(Listensc);
WSACleanup();
end;
sto.sin_family:=AF_INET;
sto.sin_port:=htons(5500);
sto.sin_addr.s_addr:=htonl(INADDR_ANY);
if bind(Listensc,sto,sizeof(sto))=SOCKET_ERROR then
begin
closesocket(Listensc);
end;
listen(Listensc,20);
begin
Acceptsc:= WSAAccept(Listensc, nil, nil, nil, 0);
begin
closesocket(Listensc);
exit;
end;
PerHandleData := LPPER_HANDLE_DATA (GlobalAlloc(GPTR, sizeof(PER_HANDLE_DATA)));
if (PerHandleData = nil) then
begin
exit;
end;
PerHandleData.Socket := Acceptsc;
if (CreateIoCompletionPort(Acceptsc, CompletionPort, DWORD(PerHandleData), 0) = 0) then
begin
exit;
end;
if (PerIoData = nil) then
begin
exit;
end;
ZeroMemory(@PerIoData.Overlapped, sizeof(OVERLAPPED));
PerIoData.BytesSEND := 0;
PerIoData.BytesRECV := 0;
PerIoData.DataBuf.len := 1024;
PerIoData.DataBuf.buf := @PerIoData.Buffer;
Flags := 0;
if (WSARecv(Acceptsc, @(PerIoData.DataBuf), 1, @RecvBytes, @Flags,@(PerIoData.Overlapped), nil) = SOCKET_ERROR) then
begin
if (WSAGetLastError() <> ERROR_IO_PENDING) then
begin
//最近在檢查代碼的時候發現以前這裏只是使用Exit來退出是不正確的。這裏需要刪除申請的單IO數據結構,否子會出現內存泄露。 (2008年3月24日)
closesocket(AcceptSc);
if PerIoData <> nil then
begin
GlobalFree(DWORD(PerIoData));
end;
Continue;
end;