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156 lines
4.6 KiB
156 lines
4.6 KiB
/**
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* \file
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* Abstraction layer above BSD sockets. Capsules and simplifies connect
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* accept and listen for TCP and UDP sockets.
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* It also provides a mostly unified interface to both types of sockets.
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*
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* \author Georg Hopp
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*
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* \copyright
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* Copyright © 2014 Georg Hopp
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __TR_SOCKET_H__
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#define __TR_SOCKET_H__
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#include <arpa/inet.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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//#include <arpa/inet.h> // for in_port_t
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#include "trbase.h"
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//#include "tr/interface/socket.h"
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#include "tr/logger.h"
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#define TR_UDP_MAX_READ_BLOCK 8 * 1024
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#define TR_TCP_MAX_READ_BLOCK 256 * 1024
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typedef enum TR_e_socket_fin {
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TR_FIN_NO = 0,
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TR_FIN_RD = 1,
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TR_FIN_WR = 2,
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TR_FIN_RDWR = 3
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} TR_SocketFin;
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#define TR_MAX_HOST 256
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#define TR_MAX_CNAME 512
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TR_CLASS(TR_Socket) {
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TR_Logger log;
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int flags;
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int type;
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char host[TR_MAX_HOST];
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char cname[TR_MAX_CNAME];
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int port;
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time_t ttl;
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union {
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struct sockaddr info;
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struct sockaddr_in in;
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struct sockaddr_in6 in6;
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} addr;
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socklen_t addrlen;
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int handle;
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TR_SocketFin fin_state;
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};
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TR_INSTANCE_INIT(TR_Socket);
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TR_CLASSVARS_DECL(TR_Socket) {};
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#define TR_socketLog(socket) ((socket)->log)
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#define TR_socketFlags(socket) ((socket)->flags)
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#define TR_socketType(socket) ((socket)->type)
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#define TR_socketHost(socket) ((socket)->host)
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#define TR_socketPort(socket) ((socket)->port)
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#define TR_socketCname(socket) ((socket)->cname)
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#define TR_socketTtl(socket) ((socket)->ttl)
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#define TR_socketAddr(socket) ((void *)&(socket)->addr)
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#define TR_socketAddrlen(socket) ((socket)->addrlen)
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#define TR_socketHandle(socket) ((socket)->handle)
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#define TR_socketFinState(socket) ((socket)->fin_state)
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#define TR_socketFinRd(socket) \
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((TR_socketFinState(socket) & TR_FIN_RD) == TR_FIN_RD)
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#define TR_socketFinWr(socket) \
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((TR_socketFinState(socket) & TR_FIN_WR) == TR_FIN_WR)
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#define TR_socketFinRdWr(socket) \
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((TR_socketFinState(socket) & TR_FIN_RDWR) == TR_FIN_RDWR)
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#define TR_socketAddrPort(socket) \
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((socket)->addr.info.sa_family == AF_INET \
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? (socket)->addr.in.sin_port \
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: (socket)->addr.info.sa_family == AF_INET6 \
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? (socket)->addr.in6.sin6_port \
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: 0)
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#define TR_socketAddrIp(socket) \
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((socket)->addr.info.sa_family == AF_INET \
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? (void *)&(socket)->addr.in.sin_addr.s_addr \
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: (socket)->addr.info.sa_family == AF_INET6 \
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? (void *)&(socket)->addr.in6.sin6_addr.s6_addr \
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: NULL)
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#define TR_socketAddrIplen(socket) \
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((socket)->addr.info.sa_family == AF_INET \
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? sizeof((socket)->addr.in.sin_addr) \
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: (socket)->addr.info.sa_family == AF_INET6 \
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? sizeof((socket)->addr.in6.sin6_addr) \
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: 0)
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#define TR_socketAddrIpStr(socket, buffer, nbuffer) \
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if (TR_socketAddrIp((socket))) \
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inet_ntop( \
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(socket)->addr.info.sa_family, \
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TR_socketAddrIp((socket)), \
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buffer, nbuffer)
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TR_CLASS(TR_TcpSocket) {
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TR_EXTENDS(TR_Socket);
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int listen;
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int connected;
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};
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TR_INSTANCE_INIT(TR_TcpSocket);
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TR_CLASSVARS_DECL(TR_TcpSocket) {};
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TR_CLASS(TR_UdpSocket) {
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TR_EXTENDS(TR_Socket);
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};
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TR_INSTANCE_INIT(TR_UdpSocket);
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TR_CLASSVARS_DECL(TR_UdpSocket) {};
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typedef int (* TR_socketAction_fptr)(void *);
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int TR_socketInit(TR_Socket, TR_socketAction_fptr);
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TR_SocketFin TR_socketShutdownRead(TR_Socket);
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TR_SocketFin TR_socketShutdownWrite(TR_Socket);
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TR_SocketFin TR_socketShutdown(TR_Socket);
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void TR_socketClose(TR_Socket);
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void TR_socketNonblock(TR_Socket);
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#define TR_socketBind(socket) \
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(TR_socketInit((socket), TR_socketBindAction))
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TR_TcpSocket TR_socketAccept(TR_TcpSocket);
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#define TR_socketConnect(socket) \
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(TR_socketInit((socket), TR_socketConnectAction))
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#define TR_socketOpen(socket) \
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(TR_socketInit((socket), NULL))
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#endif // __TR_SOCKET_H__
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// vim: set ts=4 sw=4:
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