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Echo server: Difference between revisions
+AutoHotkey
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(+AutoHotkey) |
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Line 5:
The implementation must not stop responding to other clients if one client sends a partial line or stops reading responses.
=={{header|AutoHotkey}}==
echoserver.ahk, modified from
[http://www.autohotkey.com/forum/topic13829.html script] by zed gecko.
<lang AutoHotkey>
#SingleInstance Force
Network_Port = 12321
Network_Address = 127.0.0.1
NewData := false
DataReceived =
Gosub Connection_Init
return
Connection_Init:
OnExit, ExitSub
socket := PrepareForIncomingConnection(Network_Address, Network_Port)
if socket = -1
ExitApp
Process, Exist
DetectHiddenWindows On
ScriptMainWindowId := WinExist("ahk_class AutoHotkey ahk_pid " . ErrorLevel)
DetectHiddenWindows Off
NotificationMsg = 0x5555
OnMessage(NotificationMsg, "ReceiveData")
ExitMsg = 0x6666
OnMessage(ExitMsg, "ExitData")
FD_READ = 1
FD_CLOSE = 32
FD_CONNECT = 20
if DllCall("Ws2_32\WSAAsyncSelect", "UInt", socket, "UInt", ScriptMainWindowId, "UInt", ExitMsg, "Int", FD_CLOSE)
{
msgbox, closed
}
if DllCall("Ws2_32\WSAAsyncSelect", "UInt", socket, "UInt", ScriptMainWindowId, "UInt", NotificationMsg, "Int", FD_READ|FD_CONNECT)
{
MsgBox % "WSAAsyncSelect() indicated Winsock error " . DllCall("Ws2_32\WSAGetLastError")
DllCall("Ws2_32\WSAAsyncSelect", "UInt", socket, "UInt", ScriptMainWindowId, "UInt", ExitMsg, "Int", FD_CLOSE)
ExitApp
}
SetTimer, NewConnectionCheck, 500
return
PrepareForIncomingConnection(IPAddress, Port)
{
VarSetCapacity(wsaData, 32)
result := DllCall("Ws2_32\WSAStartup", "UShort", 0x0002, "UInt", &wsaData)
if ErrorLevel
{
MsgBox WSAStartup() could not be called due to error %ErrorLevel%. Winsock 2.0 or higher is required.
return -1
}
if result
{
MsgBox % "WSAStartup() indicated Winsock error " . DllCall("Ws2_32\WSAGetLastError")
return -1
}
AF_INET = 2
SOCK_STREAM = 1
IPPROTO_TCP = 6
socket := DllCall("Ws2_32\socket", "Int", AF_INET, "Int", SOCK_STREAM, "Int", IPPROTO_TCP)
if socket = -1
{
MsgBox % "socket() indicated Winsock error " . DllCall("Ws2_32\WSAGetLastError")
return -1
}
SizeOfSocketAddress = 16
VarSetCapacity(SocketAddress, SizeOfSocketAddress)
InsertInteger(2, SocketAddress, 0, AF_INET)
InsertInteger(DllCall("Ws2_32\htons", "UShort", Port), SocketAddress, 2, 2)
InsertInteger(DllCall("Ws2_32\inet_addr", "Str", IPAddress), SocketAddress, 4, 4)
if DllCall("Ws2_32\bind", "UInt", socket, "UInt", &SocketAddress, "Int", SizeOfSocketAddress)
{
MsgBox % "bind() indicated Winsock error " . DllCall("Ws2_32\WSAGetLastError") . "?"
return -1
}
if DllCall("Ws2_32\listen", "UInt", socket, "UInt", "SOMAXCONN")
{
MsgBox % "LISTEN() indicated Winsock error " . DllCall("Ws2_32\WSAGetLastError") . "?"
return -1
}
return socket
}
ReceiveData(wParam, lParam)
{
global DataReceived
global NewData
global mydata
global ConnectionList
socket := wParam
ReceivedDataSize = 4096
Loop
{
VarSetCapacity(ReceivedData, ReceivedDataSize, 0)
ReceivedDataLength := DllCall("Ws2_32\recv", "UInt", socket, "Str", ReceivedData, "Int", ReceivedDataSize, "Int", 0)
if ReceivedDataLength = 0
{
StringReplace, ConnectionList, ConnectionList, %socket%`n
DllCall("Ws2_32\closesocket", "UInt", socket)
}
if ReceivedDataLength = -1
{
WinsockError := DllCall("Ws2_32\WSAGetLastError")
if WinsockError = 10035
{
DataReceived = %TempDataReceived%
NewData := true
return 1
}
if WinsockError <> 10054
{
MsgBox % "recv() indicated Winsock error " . WinsockError
StringReplace, ConnectionList, ConnectionList, %socket%`n
DllCall("Ws2_32\closesocket", "UInt", socket)
}
}
mydata := ReceivedData
gosub myreceive
if (A_Index = 1)
TempDataReceived =
TempDataReceived = %TempDataReceived%%ReceivedData%
}
return 1
}
ExitData(wParam, lParam)
{
global ConnectionList
socket := wParam
ReceivedDataSize = 16
VarSetCapacity(ReceivedData, ReceivedDataSize, 0)
ReceivedDataLength := DllCall("Ws2_32\recv", "UInt", socket, "Str", ReceivedData, "Int", ReceivedDataSize, "Int", 0)
StringReplace, ConnectionList, ConnectionList, %socket%`n
DllCall("Ws2_32\closesocket", "UInt", socket)
return 1
}
SendData(wParam,SendData)
{
SendDataSize := VarSetCapacity(SendData)
SendDataSize += 1
Loop, parse, wParam, `n
{
If A_LoopField =
Continue
socket := A_LoopField
sendret := DllCall("Ws2_32\send", "UInt", socket, "Str", SendData, "Int", SendDatasize, "Int", 0)
}
}
InsertInteger(pInteger, ByRef pDest, pOffset = 0, pSize = 4)
{
Loop %pSize%
DllCall("RtlFillMemory", "UInt", &pDest + pOffset + A_Index-1, "UInt", 1, "UChar", pInteger >> 8*(A_Index-1) & 0xFF)
}
NewConnectionCheck:
ConnectionCheck := DllCall("Ws2_32\accept", "UInt", socket, "UInt", &SocketAddress, "Int", SizeOfSocketAddress)
if ConnectionCheck > 1
ConnectionList = %ConnectionList%%ConnectionCheck%`n
Return
SendProcedure:
If ConnectionList <>
{
SendText = %A_Hour%:%A_Min%:%A_Sec%
SendData(ConnectionList,SendText)
}
Return
myreceive:
Msgbox, received %mydata%
return
GuiClose:
ExitSub:
DllCall("Ws2_32\WSACleanup")
ExitApp</lang>
=={{header|C}}==
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