diff options
Diffstat (limited to 'apps/plugins/sdl/progs/quake/net_loop.c')
-rw-r--r-- | apps/plugins/sdl/progs/quake/net_loop.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/net_loop.c b/apps/plugins/sdl/progs/quake/net_loop.c new file mode 100644 index 0000000000..35aa370d95 --- /dev/null +++ b/apps/plugins/sdl/progs/quake/net_loop.c | |||
@@ -0,0 +1,245 @@ | |||
1 | /* | ||
2 | Copyright (C) 1996-1997 Id Software, Inc. | ||
3 | |||
4 | This program is free software; you can redistribute it and/or | ||
5 | modify it under the terms of the GNU General Public License | ||
6 | as published by the Free Software Foundation; either version 2 | ||
7 | of the License, or (at your option) any later version. | ||
8 | |||
9 | This program is distributed in the hope that it will be useful, | ||
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
12 | |||
13 | See the GNU General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with this program; if not, write to the Free Software | ||
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
18 | |||
19 | */ | ||
20 | // net_loop.c | ||
21 | |||
22 | #include "quakedef.h" | ||
23 | #include "net_loop.h" | ||
24 | |||
25 | qboolean localconnectpending = false; | ||
26 | qsocket_t *loop_client = NULL; | ||
27 | qsocket_t *loop_server = NULL; | ||
28 | |||
29 | int Loop_Init (void) | ||
30 | { | ||
31 | if (cls.state == ca_dedicated) | ||
32 | return -1; | ||
33 | return 0; | ||
34 | } | ||
35 | |||
36 | |||
37 | void Loop_Shutdown (void) | ||
38 | { | ||
39 | } | ||
40 | |||
41 | |||
42 | void Loop_Listen (qboolean state) | ||
43 | { | ||
44 | } | ||
45 | |||
46 | |||
47 | void Loop_SearchForHosts (qboolean xmit) | ||
48 | { | ||
49 | if (!sv.active) | ||
50 | return; | ||
51 | |||
52 | hostCacheCount = 1; | ||
53 | if (Q_strcmp(hostname.string, "UNNAMED") == 0) | ||
54 | Q_strcpy(hostcache[0].name, "local"); | ||
55 | else | ||
56 | Q_strcpy(hostcache[0].name, hostname.string); | ||
57 | Q_strcpy(hostcache[0].map, sv.name); | ||
58 | hostcache[0].users = net_activeconnections; | ||
59 | hostcache[0].maxusers = svs.maxclients; | ||
60 | hostcache[0].driver = net_driverlevel; | ||
61 | Q_strcpy(hostcache[0].cname, "local"); | ||
62 | } | ||
63 | |||
64 | |||
65 | qsocket_t *Loop_Connect (char *host) | ||
66 | { | ||
67 | if (Q_strcmp(host,"local") != 0) | ||
68 | return NULL; | ||
69 | |||
70 | localconnectpending = true; | ||
71 | |||
72 | if (!loop_client) | ||
73 | { | ||
74 | if ((loop_client = NET_NewQSocket ()) == NULL) | ||
75 | { | ||
76 | Con_Printf("Loop_Connect: no qsocket available\n"); | ||
77 | return NULL; | ||
78 | } | ||
79 | Q_strcpy (loop_client->address, "localhost"); | ||
80 | } | ||
81 | loop_client->receiveMessageLength = 0; | ||
82 | loop_client->sendMessageLength = 0; | ||
83 | loop_client->canSend = true; | ||
84 | |||
85 | if (!loop_server) | ||
86 | { | ||
87 | if ((loop_server = NET_NewQSocket ()) == NULL) | ||
88 | { | ||
89 | Con_Printf("Loop_Connect: no qsocket available\n"); | ||
90 | return NULL; | ||
91 | } | ||
92 | Q_strcpy (loop_server->address, "LOCAL"); | ||
93 | } | ||
94 | loop_server->receiveMessageLength = 0; | ||
95 | loop_server->sendMessageLength = 0; | ||
96 | loop_server->canSend = true; | ||
97 | |||
98 | loop_client->driverdata = (void *)loop_server; | ||
99 | loop_server->driverdata = (void *)loop_client; | ||
100 | |||
101 | return loop_client; | ||
102 | } | ||
103 | |||
104 | |||
105 | qsocket_t *Loop_CheckNewConnections (void) | ||
106 | { | ||
107 | if (!localconnectpending) | ||
108 | return NULL; | ||
109 | |||
110 | localconnectpending = false; | ||
111 | loop_server->sendMessageLength = 0; | ||
112 | loop_server->receiveMessageLength = 0; | ||
113 | loop_server->canSend = true; | ||
114 | loop_client->sendMessageLength = 0; | ||
115 | loop_client->receiveMessageLength = 0; | ||
116 | loop_client->canSend = true; | ||
117 | return loop_server; | ||
118 | } | ||
119 | |||
120 | |||
121 | static int IntAlign(int value) | ||
122 | { | ||
123 | return (value + (sizeof(int) - 1)) & (~(sizeof(int) - 1)); | ||
124 | } | ||
125 | |||
126 | |||
127 | int Loop_GetMessage (qsocket_t *sock) | ||
128 | { | ||
129 | int ret; | ||
130 | int length; | ||
131 | |||
132 | if (sock->receiveMessageLength == 0) | ||
133 | return 0; | ||
134 | |||
135 | ret = sock->receiveMessage[0]; | ||
136 | length = sock->receiveMessage[1] + (sock->receiveMessage[2] << 8); | ||
137 | // alignment byte skipped here | ||
138 | SZ_Clear (&net_message); | ||
139 | SZ_Write (&net_message, &sock->receiveMessage[4], length); | ||
140 | |||
141 | length = IntAlign(length + 4); | ||
142 | sock->receiveMessageLength -= length; | ||
143 | |||
144 | if (sock->receiveMessageLength) | ||
145 | Q_memcpy(sock->receiveMessage, &sock->receiveMessage[length], sock->receiveMessageLength); | ||
146 | |||
147 | if (sock->driverdata && ret == 1) | ||
148 | ((qsocket_t *)sock->driverdata)->canSend = true; | ||
149 | |||
150 | return ret; | ||
151 | } | ||
152 | |||
153 | |||
154 | int Loop_SendMessage (qsocket_t *sock, sizebuf_t *data) | ||
155 | { | ||
156 | byte *buffer; | ||
157 | int *bufferLength; | ||
158 | |||
159 | if (!sock->driverdata) | ||
160 | return -1; | ||
161 | |||
162 | bufferLength = &((qsocket_t *)sock->driverdata)->receiveMessageLength; | ||
163 | |||
164 | if ((*bufferLength + data->cursize + 4) > NET_MAXMESSAGE) | ||
165 | Sys_Error("Loop_SendMessage: overflow\n"); | ||
166 | |||
167 | buffer = ((qsocket_t *)sock->driverdata)->receiveMessage + *bufferLength; | ||
168 | |||
169 | // message type | ||
170 | *buffer++ = 1; | ||
171 | |||
172 | // length | ||
173 | *buffer++ = data->cursize & 0xff; | ||
174 | *buffer++ = data->cursize >> 8; | ||
175 | |||
176 | // align | ||
177 | buffer++; | ||
178 | |||
179 | // message | ||
180 | Q_memcpy(buffer, data->data, data->cursize); | ||
181 | *bufferLength = IntAlign(*bufferLength + data->cursize + 4); | ||
182 | |||
183 | sock->canSend = false; | ||
184 | return 1; | ||
185 | } | ||
186 | |||
187 | |||
188 | int Loop_SendUnreliableMessage (qsocket_t *sock, sizebuf_t *data) | ||
189 | { | ||
190 | byte *buffer; | ||
191 | int *bufferLength; | ||
192 | |||
193 | if (!sock->driverdata) | ||
194 | return -1; | ||
195 | |||
196 | bufferLength = &((qsocket_t *)sock->driverdata)->receiveMessageLength; | ||
197 | |||
198 | if ((*bufferLength + data->cursize + sizeof(byte) + sizeof(short)) > NET_MAXMESSAGE) | ||
199 | return 0; | ||
200 | |||
201 | buffer = ((qsocket_t *)sock->driverdata)->receiveMessage + *bufferLength; | ||
202 | |||
203 | // message type | ||
204 | *buffer++ = 2; | ||
205 | |||
206 | // length | ||
207 | *buffer++ = data->cursize & 0xff; | ||
208 | *buffer++ = data->cursize >> 8; | ||
209 | |||
210 | // align | ||
211 | buffer++; | ||
212 | |||
213 | // message | ||
214 | Q_memcpy(buffer, data->data, data->cursize); | ||
215 | *bufferLength = IntAlign(*bufferLength + data->cursize + 4); | ||
216 | return 1; | ||
217 | } | ||
218 | |||
219 | |||
220 | qboolean Loop_CanSendMessage (qsocket_t *sock) | ||
221 | { | ||
222 | if (!sock->driverdata) | ||
223 | return false; | ||
224 | return sock->canSend; | ||
225 | } | ||
226 | |||
227 | |||
228 | qboolean Loop_CanSendUnreliableMessage (qsocket_t *sock) | ||
229 | { | ||
230 | return true; | ||
231 | } | ||
232 | |||
233 | |||
234 | void Loop_Close (qsocket_t *sock) | ||
235 | { | ||
236 | if (sock->driverdata) | ||
237 | ((qsocket_t *)sock->driverdata)->driverdata = NULL; | ||
238 | sock->receiveMessageLength = 0; | ||
239 | sock->sendMessageLength = 0; | ||
240 | sock->canSend = true; | ||
241 | if (sock == loop_client) | ||
242 | loop_client = NULL; | ||
243 | else | ||
244 | loop_server = NULL; | ||
245 | } | ||