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 #include <sys/types.h>
21 #include "qwsvdef.h"
22
23 #ifdef NeXT
24 #include <libc.h>
25 #endif
26
27 #if defined(__linux__) || defined(sun)
28 #include <sys/stat.h>
29 #include <unistd.h>
30 #include <sys/time.h>
31 #include <errno.h>
32 #else
33 #include <sys/dir.h>
34 #endif
35
36 cvar_t sys_nostdout = {"sys_nostdout","0"};
37 cvar_t sys_extrasleep = {"sys_extrasleep","0"};
38
39 qboolean stdin_ready;
40
41 /*
42 ===============================================================================
43
44 REQUIRED SYS FUNCTIONS
45
46 ===============================================================================
47 */
48
49 /*
50 ============
51 Sys_FileTime
52
53 returns -1 if not present
54 ============
55 */
Sys_FileTime(char * path)56 int Sys_FileTime (char *path)
57 {
58 struct stat buf;
59
60 if (stat (path,&buf) == -1)
61 return -1;
62
63 return buf.st_mtime;
64 }
65
66
67 /*
68 ============
69 Sys_mkdir
70
71 ============
72 */
Sys_mkdir(char * path)73 void Sys_mkdir (char *path)
74 {
75 if (mkdir (path, 0777) != -1)
76 return;
77 if (errno != EEXIST)
78 Sys_Error ("mkdir %s: %s",path, strerror(errno));
79 }
80
81
82 /*
83 ================
84 Sys_DoubleTime
85 ================
86 */
Sys_DoubleTime(void)87 double Sys_DoubleTime (void)
88 {
89 struct timeval tp;
90 struct timezone tzp;
91 static int secbase;
92
93 gettimeofday(&tp, &tzp);
94
95 if (!secbase)
96 {
97 secbase = tp.tv_sec;
98 return tp.tv_usec/1000000.0;
99 }
100
101 return (tp.tv_sec - secbase) + tp.tv_usec/1000000.0;
102 }
103
104 /*
105 ================
106 Sys_Error
107 ================
108 */
Sys_Error(char * error,...)109 void Sys_Error (char *error, ...)
110 {
111 va_list argptr;
112 char string[1024];
113
114 va_start (argptr,error);
115 vsprintf (string,error,argptr);
116 va_end (argptr);
117 printf ("Fatal error: %s\n",string);
118
119 exit (1);
120 }
121
122 /*
123 ================
124 Sys_Printf
125 ================
126 */
Sys_Printf(char * fmt,...)127 void Sys_Printf (char *fmt, ...)
128 {
129 va_list argptr;
130 static char text[2048];
131 unsigned char *p;
132
133 va_start (argptr,fmt);
134 vsprintf (text,fmt,argptr);
135 va_end (argptr);
136
137 if (strlen(text) > sizeof(text))
138 Sys_Error("memory overwrite in Sys_Printf");
139
140 if (sys_nostdout.value)
141 return;
142
143 for (p = (unsigned char *)text; *p; p++) {
144 *p &= 0x7f;
145 if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9)
146 printf("[%02x]", *p);
147 else
148 putc(*p, stdout);
149 }
150 fflush(stdout);
151 }
152
153
154 /*
155 ================
156 Sys_Quit
157 ================
158 */
Sys_Quit(void)159 void Sys_Quit (void)
160 {
161 exit (0); // appkit isn't running
162 }
163
164 static int do_stdin = 1;
165
166 /*
167 ================
168 Sys_ConsoleInput
169
170 Checks for a complete line of text typed in at the console, then forwards
171 it to the host command processor
172 ================
173 */
Sys_ConsoleInput(void)174 char *Sys_ConsoleInput (void)
175 {
176 static char text[256];
177 int len;
178
179 if (!stdin_ready || !do_stdin)
180 return NULL; // the select didn't say it was ready
181 stdin_ready = false;
182
183 len = read (0, text, sizeof(text));
184 if (len == 0) {
185 // end of file
186 do_stdin = 0;
187 return NULL;
188 }
189 if (len < 1)
190 return NULL;
191 text[len-1] = 0; // rip off the /n and terminate
192
193 return text;
194 }
195
196 /*
197 =============
198 Sys_Init
199
200 Quake calls this so the system can register variables before host_hunklevel
201 is marked
202 =============
203 */
Sys_Init(void)204 void Sys_Init (void)
205 {
206 Cvar_RegisterVariable (&sys_nostdout);
207 Cvar_RegisterVariable (&sys_extrasleep);
208 }
209
210 /*
211 =============
212 main
213 =============
214 */
main(int argc,char * argv[])215 void main(int argc, char *argv[])
216 {
217 double time, oldtime, newtime;
218 quakeparms_t parms;
219 fd_set fdset;
220 extern int net_socket;
221 struct timeval timeout;
222 int j;
223
224 memset (&parms, 0, sizeof(parms));
225
226 COM_InitArgv (argc, argv);
227 parms.argc = com_argc;
228 parms.argv = com_argv;
229
230 parms.memsize = 16*1024*1024;
231
232 j = COM_CheckParm("-mem");
233 if (j)
234 parms.memsize = (int) (Q_atof(com_argv[j+1]) * 1024 * 1024);
235 if ((parms.membase = malloc (parms.memsize)) == NULL)
236 Sys_Error("Can't allocate %ld\n", parms.memsize);
237
238 parms.basedir = ".";
239
240 /*
241 if (Sys_FileTime ("id1/pak0.pak") != -1)
242 else
243 parms.basedir = "/raid/quake/v2";
244 */
245
246 SV_Init (&parms);
247
248 // run one frame immediately for first heartbeat
249 SV_Frame (0.1);
250
251 //
252 // main loop
253 //
254 oldtime = Sys_DoubleTime () - 0.1;
255 while (1)
256 {
257 // select on the net socket and stdin
258 // the only reason we have a timeout at all is so that if the last
259 // connected client times out, the message would not otherwise
260 // be printed until the next event.
261 FD_ZERO(&fdset);
262 if (do_stdin)
263 FD_SET(0, &fdset);
264 FD_SET(net_socket, &fdset);
265 timeout.tv_sec = 1;
266 timeout.tv_usec = 0;
267 if (select (net_socket+1, &fdset, NULL, NULL, &timeout) == -1)
268 continue;
269 stdin_ready = FD_ISSET(0, &fdset);
270
271 // find time passed since last cycle
272 newtime = Sys_DoubleTime ();
273 time = newtime - oldtime;
274 oldtime = newtime;
275
276 SV_Frame (time);
277
278 // extrasleep is just a way to generate a fucked up connection on purpose
279 if (sys_extrasleep.value)
280 usleep (sys_extrasleep.value);
281 }
282 }
283
284