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0e51267b LOK |
1 | #pragma once |
2 | /* | |
3 | * This file is part of the libCEC(R) library. | |
4 | * | |
5 | * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved. | |
6 | * libCEC(R) is an original work, containing original code. | |
7 | * | |
8 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
9 | * | |
10 | * This program is dual-licensed; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | * | |
24 | * | |
25 | * Alternatively, you can license this library under a commercial license, | |
26 | * please contact Pulse-Eight Licensing for more information. | |
27 | * | |
28 | * For more information contact: | |
29 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
30 | * http://www.pulse-eight.com/ | |
31 | * http://www.pulse-eight.net/ | |
32 | */ | |
33 | ||
34 | #include "../os.h" | |
35 | #include "../sockets/socket.h" | |
36 | ||
37 | namespace PLATFORM | |
38 | { | |
39 | inline int TcpResolveAddress(const CStdString &strHostname, uint16_t iPort, struct addrinfo *address) | |
40 | { | |
41 | struct addrinfo hints; | |
42 | char service[33]; | |
43 | ||
44 | memset(&hints, 0, sizeof(hints)); | |
45 | hints.ai_family = AF_UNSPEC; | |
46 | hints.ai_socktype = SOCK_STREAM; | |
47 | hints.ai_protocol = IPPROTO_TCP; | |
48 | sprintf(service, "%d", iPort); | |
49 | ||
50 | return getaddrinfo(strHostname.c_str(), service, &hints, &address); | |
51 | } | |
52 | ||
53 | inline int TcpGetSocketError() | |
54 | { | |
55 | int error = WSAGetLastError(); | |
56 | switch(error) | |
57 | { | |
58 | case WSAEINPROGRESS: return EINPROGRESS; | |
59 | case WSAECONNRESET : return ECONNRESET; | |
60 | case WSAETIMEDOUT : return ETIMEDOUT; | |
61 | case WSAEWOULDBLOCK: return EAGAIN; | |
62 | default : return error; | |
63 | } | |
64 | } | |
65 | ||
66 | inline int TcpConnectSocket(struct addrinfo* addr, socket_t socket, int *iError, uint64_t iTimeout) | |
67 | { | |
68 | int nRes = 0; | |
69 | socklen_t errlen = sizeof(int); | |
70 | ||
71 | SocketSetBlocking(socket, false); | |
72 | ||
73 | /* connect to the other side */ | |
74 | nRes = connect(socket, addr->ai_addr, addr->ai_addrlen); | |
75 | ||
76 | /* poll until a connection is established */ | |
77 | if (nRes == -1) | |
78 | { | |
79 | if (TcpGetSocketError() == EINPROGRESS || TcpGetSocketError() == EAGAIN) | |
80 | { | |
81 | fd_set fd_write, fd_except; | |
82 | struct timeval tv; | |
83 | tv.tv_sec = (long)(iTimeout / 1000); | |
84 | tv.tv_usec = (long)(1000 * (iTimeout % 1000)); | |
85 | ||
86 | FD_ZERO(&fd_write); | |
87 | FD_ZERO(&fd_except); | |
88 | FD_SET(socket, &fd_write); | |
89 | FD_SET(socket, &fd_except); | |
90 | ||
91 | nRes = select(sizeof(socket)*8, NULL, &fd_write, &fd_except, &tv); | |
92 | if (nRes == 0) | |
93 | { | |
94 | *iError = ETIMEDOUT; | |
95 | return SOCKET_ERROR; | |
96 | } | |
97 | else if (nRes == -1) | |
98 | { | |
99 | *iError = TcpGetSocketError(); | |
100 | return SOCKET_ERROR; | |
101 | } | |
102 | ||
103 | /* check for errors */ | |
104 | getsockopt(socket, SOL_SOCKET, SO_ERROR, (char *)iError, &errlen); | |
105 | } | |
106 | else | |
107 | { | |
108 | *iError = TcpGetSocketError(); | |
109 | } | |
110 | } | |
111 | ||
112 | SocketSetBlocking(socket, true); | |
113 | ||
114 | return 0; | |
115 | } | |
116 | ||
117 | inline bool TcpSetNoDelay(socket_t socket) | |
118 | { | |
119 | int nVal = 1; | |
120 | setsockopt(socket, IPPROTO_TCP, TCP_NODELAY, (const char*)&nVal, sizeof(nVal)); | |
121 | return true; | |
122 | } | |
123 | } |