141 lines
4.0 KiB
C#
141 lines
4.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace OliviaAddIn
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{
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unsafe public class Cstr_socket
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{
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//variables------------------------
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private IntPtr sc;
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//----------------------------------
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public Cstr_socket()
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{
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sc = IntPtr.Zero;
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}
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~Cstr_socket()
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{
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termina();
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}
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//funciones-----------------------
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//devuelve -1 si no se ha podido crear socket
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//0 si no se puede conectar
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//1 si conectado
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public bool conecta(string ip, int puerto)
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{
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termina();
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try
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{
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sc = str_socket_crea();
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}
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catch
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{
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sc = IntPtr.Zero;
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}
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if (sc == IntPtr.Zero)
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return false;
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try
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{
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return str_socket_conecta(sc, ip, puerto) != 0;
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}
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catch
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{
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termina();
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return false;
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}
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}
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public bool envia(string txt)
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{
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if (sc == IntPtr.Zero)
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return false;
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try
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{
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return 0 != str_socket_envia(sc, txt);
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}
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catch
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{
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termina();
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return false;
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}
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}
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public string recibe()
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{
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int nb = -2;
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if (sc == IntPtr.Zero)
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return "";
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try
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{
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nb = str_socket_recive(sc);
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if(nb<=0)//error
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return "";
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StringBuilder data = new StringBuilder("", nb);
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str_socket_dame_buf(sc, data);
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return data.ToString();
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}
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catch
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{
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termina();
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}
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return "";
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}
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public string dame_error()
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{
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if (sc == IntPtr.Zero)
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return "Socket nulo";
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try
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{
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StringBuilder data = new StringBuilder("Sin errores", 1024);
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str_socket_dame_error(sc,data);
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return data.ToString();
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}
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catch
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{
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termina();
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}
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return "Error en el socket de la dll utiles.dll";
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}
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public void termina()
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{
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if (sc != IntPtr.Zero)
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{
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try
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{
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str_socket_borra(sc);
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}
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catch
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{
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sc = IntPtr.Zero;
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}
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sc = IntPtr.Zero;
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}
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}
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//funciones auxiliares------------------------------
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern IntPtr str_socket_crea();
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern int str_socket_conecta(IntPtr soc, String ip, int puerto);
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern int str_socket_envia(IntPtr soc, String txt);
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern int str_socket_recive(IntPtr soc);
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern void str_socket_dame_buf(IntPtr soc, StringBuilder buf);
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern void str_socket_dame_error(IntPtr soc, StringBuilder error);//llamar con 1024 de espacio
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[DllImport("utiles.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
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unsafe public static extern void str_socket_borra(IntPtr soc);
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}
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}
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