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1 | #pragma once |
2 | /* | |
3 | * This file is part of the libCEC(R) library. | |
4 | * | |
9b53a148 | 5 | * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited. All rights reserved. |
ba65909d LOK |
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 | ||
35 | #include "../os.h" | |
36 | #include "../util/timeutils.h" | |
37 | #include <stdio.h> | |
38 | #include <fcntl.h> | |
99666519 LOK |
39 | #include <sys/socket.h> |
40 | #include <netinet/in.h> | |
41 | #include <netinet/tcp.h> | |
42 | #include <arpa/inet.h> | |
43 | #include <netdb.h> | |
44 | #include <poll.h> | |
ba65909d LOK |
45 | |
46 | namespace PLATFORM | |
47 | { | |
99666519 LOK |
48 | // Standard sockets |
49 | //@{ | |
ba65909d LOK |
50 | inline void SocketClose(socket_t socket) |
51 | { | |
99666519 | 52 | if (socket != INVALID_SOCKET_VALUE) |
ba65909d LOK |
53 | close(socket); |
54 | } | |
55 | ||
56 | inline void SocketSetBlocking(socket_t socket, bool bSetTo) | |
57 | { | |
99666519 LOK |
58 | if (socket != INVALID_SOCKET_VALUE) |
59 | { | |
60 | if (bSetTo) | |
61 | fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK); | |
62 | else | |
63 | fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK); | |
64 | } | |
ba65909d LOK |
65 | } |
66 | ||
99666519 | 67 | inline ssize_t SocketWrite(socket_t socket, int *iError, void* data, size_t len) |
ba65909d LOK |
68 | { |
69 | fd_set port; | |
70 | ||
99666519 | 71 | if (socket == INVALID_SOCKET_VALUE) |
ba65909d LOK |
72 | { |
73 | *iError = EINVAL; | |
74 | return -1; | |
75 | } | |
76 | ||
99666519 | 77 | ssize_t iBytesWritten(0); |
cb2397e9 | 78 | struct timeval *tv(NULL); |
ba65909d | 79 | |
99666519 | 80 | while (iBytesWritten < (ssize_t)len) |
ba65909d LOK |
81 | { |
82 | FD_ZERO(&port); | |
83 | FD_SET(socket, &port); | |
84 | int returnv = select(socket + 1, NULL, &port, NULL, tv); | |
85 | if (returnv < 0) | |
86 | { | |
87 | *iError = errno; | |
88 | return -1; | |
89 | } | |
90 | else if (returnv == 0) | |
91 | { | |
92 | *iError = ETIMEDOUT; | |
93 | return -1; | |
94 | } | |
95 | ||
99666519 | 96 | returnv = write(socket, (char*)data + iBytesWritten, len - iBytesWritten); |
ba65909d LOK |
97 | if (returnv == -1) |
98 | { | |
99 | *iError = errno; | |
100 | return -1; | |
101 | } | |
102 | iBytesWritten += returnv; | |
103 | } | |
104 | ||
105 | return iBytesWritten; | |
106 | } | |
107 | ||
99666519 | 108 | inline ssize_t SocketRead(socket_t socket, int *iError, void* data, size_t len, uint64_t iTimeoutMs /*= 0*/) |
ba65909d LOK |
109 | { |
110 | fd_set port; | |
111 | struct timeval timeout, *tv; | |
112 | int64_t iNow(0), iTarget(0); | |
99666519 | 113 | ssize_t iBytesRead(0); |
ba65909d LOK |
114 | *iError = 0; |
115 | ||
99666519 | 116 | if (socket == INVALID_SOCKET_VALUE) |
ba65909d LOK |
117 | { |
118 | *iError = EINVAL; | |
119 | return -1; | |
120 | } | |
121 | ||
122 | if (iTimeoutMs > 0) | |
123 | { | |
124 | iNow = GetTimeMs(); | |
125 | iTarget = iNow + (int64_t) iTimeoutMs; | |
126 | } | |
127 | ||
99666519 | 128 | while (iBytesRead >= 0 && iBytesRead < (ssize_t)len && (iTimeoutMs == 0 || iTarget > iNow)) |
ba65909d LOK |
129 | { |
130 | if (iTimeoutMs == 0) | |
131 | { | |
132 | tv = NULL; | |
133 | } | |
134 | else | |
135 | { | |
136 | timeout.tv_sec = ((long int)iTarget - (long int)iNow) / (long int)1000.; | |
137 | timeout.tv_usec = ((long int)iTarget - (long int)iNow) % (long int)1000.; | |
138 | tv = &timeout; | |
139 | } | |
140 | ||
141 | FD_ZERO(&port); | |
142 | FD_SET(socket, &port); | |
143 | int32_t returnv = select(socket + 1, &port, NULL, NULL, tv); | |
144 | ||
145 | if (returnv == -1) | |
146 | { | |
147 | *iError = errno; | |
148 | return -1; | |
149 | } | |
150 | else if (returnv == 0) | |
151 | { | |
152 | break; //nothing to read | |
153 | } | |
154 | ||
99666519 | 155 | returnv = read(socket, (char*)data + iBytesRead, len - iBytesRead); |
ba65909d LOK |
156 | if (returnv == -1) |
157 | { | |
158 | *iError = errno; | |
159 | return -1; | |
160 | } | |
161 | ||
162 | iBytesRead += returnv; | |
163 | ||
164 | if (iTimeoutMs > 0) | |
165 | iNow = GetTimeMs(); | |
166 | } | |
167 | ||
168 | return iBytesRead; | |
169 | } | |
99666519 LOK |
170 | //@} |
171 | ||
172 | // TCP | |
173 | //@{ | |
174 | inline void TcpSocketClose(tcp_socket_t socket) | |
175 | { | |
176 | SocketClose(socket); | |
177 | } | |
178 | ||
179 | inline void TcpSocketShutdown(tcp_socket_t socket) | |
180 | { | |
181 | if (socket != INVALID_SOCKET_VALUE) | |
182 | shutdown(socket, SHUT_RDWR); | |
183 | } | |
184 | ||
185 | inline ssize_t TcpSocketWrite(tcp_socket_t socket, int *iError, void* data, size_t len) | |
186 | { | |
187 | if (socket == INVALID_SOCKET_VALUE) | |
188 | { | |
189 | *iError = EINVAL; | |
190 | return -1; | |
191 | } | |
192 | ||
193 | ssize_t iReturn = send(socket, data, len, 0); | |
194 | if (iReturn < (ssize_t)len) | |
195 | *iError = errno; | |
196 | return iReturn; | |
197 | } | |
198 | ||
199 | inline ssize_t TcpSocketRead(tcp_socket_t socket, int *iError, void* data, size_t len, uint64_t iTimeoutMs /*= 0*/) | |
200 | { | |
201 | int64_t iNow(0), iTarget(0); | |
202 | ssize_t iBytesRead(0); | |
203 | *iError = 0; | |
204 | ||
205 | if (socket == INVALID_SOCKET_VALUE) | |
206 | { | |
207 | *iError = EINVAL; | |
208 | return -1; | |
209 | } | |
210 | ||
211 | if (iTimeoutMs > 0) | |
212 | { | |
213 | iNow = GetTimeMs(); | |
214 | iTarget = iNow + (int64_t) iTimeoutMs; | |
215 | } | |
216 | ||
217 | struct pollfd fds; | |
218 | fds.fd = socket; | |
219 | fds.events = POLLIN; | |
220 | fds.revents = 0; | |
221 | ||
222 | while (iBytesRead >= 0 && iBytesRead < (ssize_t)len && (iTimeoutMs == 0 || iTarget > iNow)) | |
223 | { | |
224 | if (iTimeoutMs > 0) | |
225 | { | |
226 | int iPollResult = poll(&fds, 1, iTarget - iNow); | |
227 | if (iPollResult == 0) | |
228 | { | |
229 | *iError = ETIMEDOUT; | |
230 | return -ETIMEDOUT; | |
231 | } | |
232 | } | |
233 | ||
234 | ssize_t iReadResult = (iTimeoutMs > 0) ? | |
235 | recv(socket, (char*)data + iBytesRead, len - iBytesRead, MSG_DONTWAIT) : | |
236 | recv(socket, data, len, MSG_WAITALL); | |
237 | if (iReadResult < 0) | |
238 | { | |
239 | if (errno == EAGAIN && iTimeoutMs > 0) | |
240 | continue; | |
241 | *iError = errno; | |
242 | return -errno; | |
243 | } | |
244 | else if (iReadResult == 0 || (iReadResult != (ssize_t)len && iTimeoutMs == 0)) | |
245 | { | |
246 | *iError = ECONNRESET; | |
247 | return -ECONNRESET; | |
248 | } | |
249 | ||
250 | iBytesRead += iReadResult; | |
251 | ||
252 | if (iTimeoutMs > 0) | |
253 | iNow = GetTimeMs(); | |
254 | } | |
255 | ||
256 | if (iBytesRead < (ssize_t)len) | |
257 | *iError = ETIMEDOUT; | |
258 | return iBytesRead; | |
259 | } | |
260 | ||
261 | inline bool TcpResolveAddress(const char *strHost, uint16_t iPort, int *iError, struct addrinfo **info) | |
262 | { | |
263 | struct addrinfo hints; | |
264 | char service[33]; | |
265 | memset(&hints, 0, sizeof(hints)); | |
266 | hints.ai_family = AF_UNSPEC; | |
267 | hints.ai_socktype = SOCK_STREAM; | |
268 | hints.ai_protocol = IPPROTO_TCP; | |
269 | sprintf(service, "%d", iPort); | |
270 | ||
271 | *iError = getaddrinfo(strHost, service, &hints, info); | |
272 | return !(*iError); | |
273 | } | |
274 | ||
275 | inline int TcpGetSocketError(tcp_socket_t socket) | |
276 | { | |
277 | int iReturn(0); | |
278 | socklen_t optLen = sizeof(socket_t); | |
279 | getsockopt(socket, SOL_SOCKET, SO_ERROR, (void *)&iReturn, &optLen); | |
280 | return iReturn; | |
281 | } | |
282 | ||
283 | inline bool TcpSetNoDelay(tcp_socket_t socket) | |
284 | { | |
285 | int iSetTo(1); | |
286 | setsockopt(socket, SOL_TCP, TCP_NODELAY, &iSetTo, sizeof(iSetTo)); | |
287 | return true; | |
288 | } | |
289 | ||
290 | inline bool TcpConnectSocket(tcp_socket_t socket, struct addrinfo* addr, int *iError, uint64_t iTimeout = 0) | |
291 | { | |
292 | *iError = 0; | |
293 | int iConnectResult = connect(socket, addr->ai_addr, addr->ai_addrlen); | |
294 | if (iConnectResult == -1) | |
295 | { | |
296 | if (errno == EINPROGRESS) | |
297 | { | |
298 | struct pollfd pfd; | |
299 | pfd.fd = socket; | |
300 | pfd.events = POLLOUT; | |
301 | pfd.revents = 0; | |
302 | ||
303 | int iPollResult = poll(&pfd, 1, iTimeout); | |
304 | if (iPollResult == 0) | |
305 | *iError = ETIMEDOUT; | |
306 | else if (iPollResult == -1) | |
307 | *iError = errno; | |
308 | ||
309 | socklen_t errlen = sizeof(int); | |
310 | getsockopt(socket, SOL_SOCKET, SO_ERROR, (void *)iError, &errlen); | |
311 | } | |
312 | else | |
313 | { | |
314 | *iError = errno; | |
315 | } | |
316 | } | |
317 | ||
318 | return *iError == 0; | |
319 | } | |
320 | //@} | |
ba65909d | 321 | } |