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author | Mike Buland <eichlan@xagasoft.com> | 2007-07-03 00:28:59 +0000 |
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committer | Mike Buland <eichlan@xagasoft.com> | 2007-07-03 00:28:59 +0000 |
commit | ac517a2b7625e0aa0862679e961c6349f859ea3b (patch) | |
tree | e3e27a6b9bd5e2be6150088495c91fc91786ad9d /src/socket.cpp | |
parent | f8d4301e9fa4f3709258505941e37fab2eadadc6 (diff) | |
parent | bd865cee5f89116c1f054cd0e5c275e97c2d0a9b (diff) | |
download | libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.tar.gz libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.tar.bz2 libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.tar.xz libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.zip |
The reorg is being put in trunk, I think it's ready. Now we just get to find
out how many applications won't work anymore :)
Diffstat (limited to 'src/socket.cpp')
-rw-r--r-- | src/socket.cpp | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/src/socket.cpp b/src/socket.cpp new file mode 100644 index 0000000..e567061 --- /dev/null +++ b/src/socket.cpp | |||
@@ -0,0 +1,294 @@ | |||
1 | #include <string.h> | ||
2 | #include <stdio.h> | ||
3 | #include <errno.h> | ||
4 | #include <stdlib.h> | ||
5 | #include <unistd.h> | ||
6 | #include <sys/types.h> | ||
7 | #include <sys/socket.h> | ||
8 | #include <sys/time.h> | ||
9 | #include <netinet/in.h> | ||
10 | #include <netdb.h> | ||
11 | #include <arpa/inet.h> | ||
12 | #include <errno.h> | ||
13 | #include <fcntl.h> | ||
14 | #include "socket.h" | ||
15 | #include "exceptions.h" | ||
16 | |||
17 | #define RBS (1024*2) | ||
18 | |||
19 | Bu::Socket::Socket( int nSocket ) : | ||
20 | nSocket( nSocket ), | ||
21 | bActive( true ) | ||
22 | { | ||
23 | } | ||
24 | |||
25 | Bu::Socket::Socket( const Bu::FString &sAddr, int nPort, int nTimeout ) | ||
26 | { | ||
27 | struct sockaddr_in xServerName; | ||
28 | bActive = false; | ||
29 | |||
30 | /* Create the socket. */ | ||
31 | nSocket = socket( PF_INET, SOCK_STREAM, 0 ); | ||
32 | |||
33 | if( nSocket < 0 ) | ||
34 | { | ||
35 | throw ExceptionBase("Couldn't create socket.\n"); | ||
36 | } | ||
37 | |||
38 | // These lines set the socket to non-blocking, a good thing? | ||
39 | int flags; | ||
40 | flags = fcntl(nSocket, F_GETFL, 0); | ||
41 | flags |= O_NONBLOCK; | ||
42 | if (fcntl(nSocket, F_SETFL, flags) < 0) | ||
43 | { | ||
44 | throw ExceptionBase("Couldn't set socket options.\n"); | ||
45 | } | ||
46 | |||
47 | /* Connect to the server. */ | ||
48 | //printf("Resolving hostname (%s)...\n", sAddr ); | ||
49 | { | ||
50 | struct hostent *hostinfo; | ||
51 | |||
52 | xServerName.sin_family = AF_INET; | ||
53 | xServerName.sin_port = htons( nPort ); | ||
54 | hostinfo = gethostbyname( sAddr.getStr() ); | ||
55 | if (hostinfo == NULL) | ||
56 | { | ||
57 | throw ExceptionBase("Couldn't resolve hostname.\n"); | ||
58 | } | ||
59 | xServerName.sin_addr = *(struct in_addr *) hostinfo->h_addr; | ||
60 | } | ||
61 | |||
62 | //printf("Making actual connection..."); | ||
63 | //fflush( stdout ); | ||
64 | connect( | ||
65 | nSocket, | ||
66 | (struct sockaddr *)&xServerName, | ||
67 | sizeof(xServerName) | ||
68 | ); | ||
69 | //printf("Connected.\n"); | ||
70 | |||
71 | bActive = true; | ||
72 | |||
73 | if( nTimeout > 0 ) | ||
74 | { | ||
75 | fd_set rfds, wfds, efds; | ||
76 | int retval; | ||
77 | |||
78 | FD_ZERO(&rfds); | ||
79 | FD_SET(nSocket, &rfds); | ||
80 | FD_ZERO(&wfds); | ||
81 | FD_SET(nSocket, &wfds); | ||
82 | FD_ZERO(&efds); | ||
83 | FD_SET(nSocket, &efds); | ||
84 | |||
85 | struct timeval tv; | ||
86 | tv.tv_sec = nTimeout; | ||
87 | tv.tv_usec = 0; | ||
88 | |||
89 | retval = select( nSocket+1, &rfds, &wfds, &efds, &tv ); | ||
90 | |||
91 | if( retval == 0 ) | ||
92 | { | ||
93 | close(); | ||
94 | throw ExceptionBase("Connection timeout.\n"); | ||
95 | } | ||
96 | |||
97 | } | ||
98 | } | ||
99 | |||
100 | Bu::Socket::~Socket() | ||
101 | { | ||
102 | } | ||
103 | |||
104 | void Bu::Socket::close() | ||
105 | { | ||
106 | if( bActive ) | ||
107 | { | ||
108 | fsync( nSocket ); | ||
109 | ::close( nSocket ); | ||
110 | } | ||
111 | bActive = false; | ||
112 | } | ||
113 | |||
114 | /* | ||
115 | void Bu::Socket::read() | ||
116 | { | ||
117 | char buffer[RBS]; | ||
118 | int nbytes; | ||
119 | int nTotalRead=0; | ||
120 | |||
121 | for(;;) | ||
122 | { | ||
123 | //memset( buffer, 0, RBS ); | ||
124 | |||
125 | nbytes = ::read( nSocket, buffer, RBS ); | ||
126 | if( nbytes < 0 && errno != 0 && errno != EAGAIN ) | ||
127 | { | ||
128 | //printf("errno: %d, %s\n", errno, strerror( errno ) ); | ||
129 | //perror("readInput"); | ||
130 | throw ConnectionException( | ||
131 | excodeReadError, | ||
132 | "Read error: %s", | ||
133 | strerror( errno ) | ||
134 | ); | ||
135 | } | ||
136 | else | ||
137 | { | ||
138 | if( nbytes <= 0 ) | ||
139 | break; | ||
140 | nTotalRead += nbytes; | ||
141 | sReadBuf.append( buffer, nbytes ); | ||
142 | if( nbytes < RBS ) | ||
143 | { | ||
144 | break; | ||
145 | } | ||
146 | |||
147 | // New test, if data is divisible by RBS bytes on some libs the | ||
148 | // read could block, this keeps it from happening. | ||
149 | { | ||
150 | fd_set rfds; | ||
151 | FD_ZERO(&rfds); | ||
152 | FD_SET(nSocket, &rfds); | ||
153 | struct timeval tv = { 0, 0 }; | ||
154 | int retval = select( nSocket+1, &rfds, NULL, NULL, &tv ); | ||
155 | if( retval == -1 ) | ||
156 | throw ConnectionException( | ||
157 | excodeBadReadError, | ||
158 | "Bad Read error" | ||
159 | ); | ||
160 | if( !FD_ISSET( nSocket, &rfds ) ) | ||
161 | break; | ||
162 | } | ||
163 | } | ||
164 | } | ||
165 | }*/ | ||
166 | |||
167 | size_t Bu::Socket::read( void *pBuf, size_t nBytes ) | ||
168 | { | ||
169 | int nRead = TEMP_FAILURE_RETRY( ::read( nSocket, pBuf, nBytes ) ); | ||
170 | if( nRead < 0 ) | ||
171 | { | ||
172 | throw ConnectionException( excodeReadError, strerror(errno) ); | ||
173 | } | ||
174 | return nRead; | ||
175 | } | ||
176 | |||
177 | //size_t Bu::Socket::read( void *pBuf, size_t nBytes, uint32_t nTimeout ) | ||
178 | //{ | ||
179 | //} | ||
180 | |||
181 | size_t Bu::Socket::write( const void *pBuf, size_t nBytes ) | ||
182 | { | ||
183 | int nWrote = TEMP_FAILURE_RETRY( ::write( nSocket, pBuf, nBytes ) ); | ||
184 | if( nWrote < 0 ) | ||
185 | { | ||
186 | throw ConnectionException( excodeWriteError, strerror(errno) ); | ||
187 | } | ||
188 | return nWrote; | ||
189 | } | ||
190 | |||
191 | long Bu::Socket::tell() | ||
192 | { | ||
193 | throw UnsupportedException(); | ||
194 | } | ||
195 | |||
196 | void Bu::Socket::seek( long offset ) | ||
197 | { | ||
198 | throw UnsupportedException(); | ||
199 | } | ||
200 | |||
201 | void Bu::Socket::setPos( long pos ) | ||
202 | { | ||
203 | throw UnsupportedException(); | ||
204 | } | ||
205 | |||
206 | void Bu::Socket::setPosEnd( long pos ) | ||
207 | { | ||
208 | throw UnsupportedException(); | ||
209 | } | ||
210 | |||
211 | bool Bu::Socket::isEOS() | ||
212 | { | ||
213 | return !bActive; | ||
214 | } | ||
215 | |||
216 | bool Bu::Socket::canRead() | ||
217 | { | ||
218 | fd_set rfds; | ||
219 | FD_ZERO(&rfds); | ||
220 | FD_SET(nSocket, &rfds); | ||
221 | struct timeval tv = { 0, 0 }; | ||
222 | int retval = select( nSocket+1, &rfds, NULL, NULL, &tv ); | ||
223 | if( retval == -1 ) | ||
224 | throw ConnectionException( | ||
225 | excodeBadReadError, | ||
226 | "Bad Read error" | ||
227 | ); | ||
228 | if( !FD_ISSET( nSocket, &rfds ) ) | ||
229 | return false; | ||
230 | return true; | ||
231 | } | ||
232 | |||
233 | bool Bu::Socket::canWrite() | ||
234 | { | ||
235 | fd_set wfds; | ||
236 | FD_ZERO(&wfds); | ||
237 | FD_SET(nSocket, &wfds); | ||
238 | struct timeval tv = { 0, 0 }; | ||
239 | int retval = select( nSocket+1, NULL, &wfds, NULL, &tv ); | ||
240 | if( retval == -1 ) | ||
241 | throw ConnectionException( | ||
242 | excodeBadReadError, | ||
243 | "Bad Read error" | ||
244 | ); | ||
245 | if( !FD_ISSET( nSocket, &wfds ) ) | ||
246 | return false; | ||
247 | return true; | ||
248 | } | ||
249 | |||
250 | bool Bu::Socket::isReadable() | ||
251 | { | ||
252 | return true; | ||
253 | } | ||
254 | |||
255 | bool Bu::Socket::isWritable() | ||
256 | { | ||
257 | return true; | ||
258 | } | ||
259 | |||
260 | bool Bu::Socket::isSeekable() | ||
261 | { | ||
262 | return false; | ||
263 | } | ||
264 | |||
265 | bool Bu::Socket::isBlocking() | ||
266 | { | ||
267 | return false; | ||
268 | } | ||
269 | |||
270 | void Bu::Socket::setBlocking( bool bBlocking ) | ||
271 | { | ||
272 | } | ||
273 | |||
274 | void Bu::Socket::flush() | ||
275 | { | ||
276 | } | ||
277 | |||
278 | bool Bu::Socket::isOpen() | ||
279 | { | ||
280 | return bActive; | ||
281 | } | ||
282 | |||
283 | Bu::FString Bu::Socket::getAddress() const | ||
284 | { | ||
285 | struct sockaddr_in addr; | ||
286 | socklen_t len = sizeof(addr); | ||
287 | addr.sin_family = AF_INET; | ||
288 | getsockname( nSocket, (sockaddr *)(&addr), &len ); | ||
289 | char buf[150]; | ||
290 | sprintf( buf, "%s", inet_ntoa( addr.sin_addr ) ); | ||
291 | |||
292 | return buf; | ||
293 | } | ||
294 | |||