1 |
gwlarson |
3.46 |
/* Copyright (c) 1999 Silicon Graphics, Inc. */ |
2 |
gregl |
3.1 |
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3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ SGI"; |
5 |
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#endif |
6 |
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7 |
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/* |
8 |
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* Radiance holodeck generation controller |
9 |
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*/ |
10 |
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11 |
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#include "rholo.h" |
12 |
gregl |
3.14 |
#include "random.h" |
13 |
gregl |
3.12 |
#include <signal.h> |
14 |
gregl |
3.1 |
#include <sys/types.h> |
15 |
gregl |
3.12 |
#include <sys/stat.h> |
16 |
gregl |
3.1 |
|
17 |
gwlarson |
3.46 |
#ifndef RTFLUSH |
18 |
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#define RTFLUSH 0 /* flush one at a time in batch */ |
19 |
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#endif |
20 |
gwlarson |
3.44 |
#ifndef FRAGWARN |
21 |
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#define FRAGWARN 20 /* fragmentation for warning (%) */ |
22 |
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#endif |
23 |
gregl |
3.33 |
#ifndef MAXQTIME |
24 |
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#define MAXQTIME 5 /* target maximum seconds in queue */ |
25 |
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#endif |
26 |
gregl |
3.1 |
/* the following must be consistent with rholo.h */ |
27 |
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int NVARS = NRHVARS; /* total number of variables */ |
28 |
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29 |
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VARIABLE vv[] = RHVINIT; /* variable-value pairs */ |
30 |
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31 |
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char *progname; /* our program name */ |
32 |
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char *hdkfile; /* holodeck file name */ |
33 |
gregl |
3.22 |
char froot[256]; /* root file name */ |
34 |
gregl |
3.1 |
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35 |
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int ncprocs = 0; /* desired number of compute processes */ |
36 |
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37 |
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char *outdev = NULL; /* output device name */ |
38 |
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39 |
gregl |
3.17 |
int readinp = 0; /* read commands from stdin */ |
40 |
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41 |
gregl |
3.20 |
int force = 0; /* allow overwrite of holodeck */ |
42 |
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43 |
gregl |
3.1 |
time_t starttime; /* time we got started */ |
44 |
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time_t endtime; /* time we should end by */ |
45 |
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time_t reporttime; /* time for next report */ |
46 |
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47 |
gregl |
3.8 |
long maxdisk; /* maximum file space (bytes) */ |
48 |
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49 |
gregl |
3.1 |
int rtargc = 1; /* rtrace command */ |
50 |
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char *rtargv[128] = {"rtrace", NULL}; |
51 |
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52 |
gregl |
3.12 |
int orig_mode = -1; /* original file mode (-1 if unchanged) */ |
53 |
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54 |
gregl |
3.1 |
long nraysdone = 0L; /* number of rays done */ |
55 |
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long npacksdone = 0L; /* number of packets done */ |
56 |
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57 |
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PACKET *freepacks; /* available packets */ |
58 |
gwlarson |
3.38 |
int totqlen; /* maximum queue length when full */ |
59 |
gregl |
3.1 |
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60 |
gregl |
3.12 |
char *sigerr[NSIG]; /* signal error messages */ |
61 |
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62 |
gwlarson |
3.40 |
extern int nowarn; /* turn warnings off? */ |
63 |
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64 |
gregl |
3.1 |
extern time_t time(); |
65 |
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66 |
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67 |
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main(argc, argv) |
68 |
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int argc; |
69 |
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char *argv[]; |
70 |
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{ |
71 |
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int i; |
72 |
gregl |
3.33 |
|
73 |
gregl |
3.18 |
initurand(16384); /* initialize urand */ |
74 |
gregl |
3.1 |
progname = argv[0]; /* get arguments */ |
75 |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
76 |
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switch (argv[i][1]) { |
77 |
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case 'w': /* turn off warnings */ |
78 |
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nowarn++; |
79 |
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break; |
80 |
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case 'f': /* force overwrite */ |
81 |
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force++; |
82 |
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break; |
83 |
gregl |
3.17 |
case 'i': /* read input from stdin */ |
84 |
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readinp++; |
85 |
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break; |
86 |
gregl |
3.1 |
case 'n': /* compute processes */ |
87 |
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if (i >= argc-2) |
88 |
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goto userr; |
89 |
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ncprocs = atoi(argv[++i]); |
90 |
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break; |
91 |
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case 'o': /* output display */ |
92 |
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if (i >= argc-2) |
93 |
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goto userr; |
94 |
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outdev = argv[++i]; |
95 |
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break; |
96 |
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default: |
97 |
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goto userr; |
98 |
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} |
99 |
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/* get root file name */ |
100 |
gregl |
3.32 |
if (i >= argc) |
101 |
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goto userr; |
102 |
gregl |
3.1 |
rootname(froot, hdkfile=argv[i++]); |
103 |
gregl |
3.27 |
/* load variables? */ |
104 |
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if (i < argc) |
105 |
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if (argv[i][0] != '-' && argv[i][0] != '+') |
106 |
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loadvars(argv[i]); /* load variables from file */ |
107 |
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108 |
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if (i >= argc || argv[i][0] == '+') |
109 |
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loadholo(); /* load existing holodeck */ |
110 |
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111 |
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while (++i < argc) /* get command line settings */ |
112 |
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if (setvariable(argv[i], matchvar) < 0) { |
113 |
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sprintf(errmsg, "unknown variable: %s", argv[i]); |
114 |
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error(USER, errmsg); |
115 |
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} |
116 |
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/* check settings */ |
117 |
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checkvalues(); |
118 |
gregl |
3.36 |
/* load rad input file */ |
119 |
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getradfile(); |
120 |
gregl |
3.27 |
|
121 |
gregl |
3.28 |
if (hdlist[0] == NULL) { /* create new holodeck */ |
122 |
gregl |
3.29 |
HDGRID hdg[HDMAX]; |
123 |
gregl |
3.1 |
/* set defaults */ |
124 |
gregl |
3.29 |
setdefaults(hdg); |
125 |
gregl |
3.1 |
/* holodeck exists? */ |
126 |
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if (!force && access(hdkfile, R_OK|W_OK) == 0) |
127 |
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error(USER, |
128 |
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"holodeck file exists -- use -f to overwrite"); |
129 |
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/* create holodeck */ |
130 |
gregl |
3.29 |
creatholo(hdg); |
131 |
gregl |
3.27 |
} else /* else just set defaults */ |
132 |
gregl |
3.15 |
setdefaults(NULL); |
133 |
gregl |
3.1 |
/* initialize */ |
134 |
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initrholo(); |
135 |
gregl |
3.15 |
/* main loop */ |
136 |
gregl |
3.1 |
while (rholo()) |
137 |
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; |
138 |
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/* done */ |
139 |
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quit(0); |
140 |
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userr: |
141 |
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fprintf(stderr, |
142 |
gregl |
3.27 |
"Usage: %s [-n nprocs][-o disp][-w][-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", |
143 |
gregl |
3.1 |
progname); |
144 |
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quit(1); |
145 |
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} |
146 |
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147 |
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148 |
gregl |
3.12 |
onsig(signo) /* fatal signal */ |
149 |
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int signo; |
150 |
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{ |
151 |
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static int gotsig = 0; |
152 |
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153 |
gwlarson |
3.47 |
if (gotsig > 1) /* we're going as fast as we can! */ |
154 |
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return; |
155 |
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if (gotsig++) { /* two signals and we split */ |
156 |
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hdsync(NULL, 0); /* don't leave w/o saying goodbye */ |
157 |
gregl |
3.12 |
_exit(signo); |
158 |
gwlarson |
3.47 |
} |
159 |
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alarm(300); /* allow 5 minutes to clean up */ |
160 |
gregl |
3.12 |
eputs("signal - "); |
161 |
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eputs(sigerr[signo]); |
162 |
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eputs("\n"); |
163 |
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quit(3); |
164 |
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} |
165 |
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166 |
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167 |
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sigdie(signo, msg) /* set fatal signal */ |
168 |
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int signo; |
169 |
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char *msg; |
170 |
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{ |
171 |
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if (signal(signo, onsig) == SIG_IGN) |
172 |
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signal(signo, SIG_IGN); |
173 |
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sigerr[signo] = msg; |
174 |
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} |
175 |
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176 |
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177 |
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int |
178 |
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resfmode(fd, mod) /* restrict open file access mode */ |
179 |
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int fd, mod; |
180 |
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{ |
181 |
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struct stat stbuf; |
182 |
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/* get original mode */ |
183 |
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if (fstat(fd, &stbuf) < 0) |
184 |
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error(SYSTEM, "cannot stat open holodeck file"); |
185 |
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mod &= stbuf.st_mode; /* always more restrictive */ |
186 |
gregl |
3.35 |
if (mod == (stbuf.st_mode & 0777)) |
187 |
gregl |
3.12 |
return(-1); /* already set */ |
188 |
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/* else change it */ |
189 |
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if (fchmod(fd, mod) < 0) { |
190 |
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error(WARNING, "cannot change holodeck file access mode"); |
191 |
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return(-1); |
192 |
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} |
193 |
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return(stbuf.st_mode); /* return original mode */ |
194 |
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} |
195 |
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196 |
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197 |
gregl |
3.1 |
initrholo() /* get our holodeck running */ |
198 |
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{ |
199 |
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extern int global_packet(); |
200 |
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register int i; |
201 |
gregl |
3.17 |
/* close holodeck on exec() */ |
202 |
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fcntl(hdlist[0]->fd, F_SETFD, FD_CLOEXEC); |
203 |
gregl |
3.4 |
|
204 |
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if (outdev != NULL) /* open output device */ |
205 |
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disp_open(outdev); |
206 |
gregl |
3.1 |
else if (ncprocs > 0) /* else use global ray feed */ |
207 |
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init_global(); |
208 |
gregl |
3.8 |
/* record disk space limit */ |
209 |
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if (!vdef(DISKSPACE)) |
210 |
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maxdisk = 0; |
211 |
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else |
212 |
gregl |
3.9 |
maxdisk = 1024.*1024.*vflt(DISKSPACE); |
213 |
gregl |
3.1 |
/* set up memory cache */ |
214 |
gregl |
3.5 |
if (outdev == NULL) |
215 |
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hdcachesize = 0; /* manual flushing */ |
216 |
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else if (vdef(CACHE)) |
217 |
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hdcachesize = 1024.*1024.*vflt(CACHE); |
218 |
gregl |
3.1 |
/* open report file */ |
219 |
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if (vdef(REPORT)) { |
220 |
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register char *s = sskip2(vval(REPORT), 1); |
221 |
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if (*s && freopen(s, "a", stderr) == NULL) |
222 |
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quit(2); |
223 |
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} |
224 |
gregl |
3.33 |
/* mark the starting time */ |
225 |
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starttime = time(NULL); |
226 |
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/* compute end time */ |
227 |
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if (!vdef(TIME) || vflt(TIME) <= FTINY) |
228 |
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endtime = 0; |
229 |
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else |
230 |
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endtime = starttime + vflt(TIME)*3600. + .5; |
231 |
gregl |
3.1 |
/* start rtrace */ |
232 |
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if (ncprocs > 0) { |
233 |
gwlarson |
3.38 |
totqlen = i = start_rtrace(); |
234 |
gregl |
3.1 |
if (i < 1) |
235 |
gregl |
3.20 |
error(USER, "cannot start rtrace process(es)"); |
236 |
gregl |
3.1 |
if (vdef(REPORT)) { /* make first report */ |
237 |
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printargs(rtargc, rtargv, stderr); |
238 |
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report(0); |
239 |
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} |
240 |
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/* allocate packets */ |
241 |
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freepacks = (PACKET *)bmalloc(i*sizeof(PACKET)); |
242 |
|
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if (freepacks == NULL) |
243 |
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goto memerr; |
244 |
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freepacks[--i].nr = 0; |
245 |
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freepacks[i].next = NULL; |
246 |
gregl |
3.25 |
if (!vdef(OBSTRUCTIONS) || !vbool(OBSTRUCTIONS)) { |
247 |
gregl |
3.1 |
freepacks[i].offset = (float *)bmalloc( |
248 |
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RPACKSIZ*sizeof(float)*(i+1) ); |
249 |
|
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if (freepacks[i].offset == NULL) |
250 |
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goto memerr; |
251 |
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} else |
252 |
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freepacks[i].offset = NULL; |
253 |
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while (i--) { |
254 |
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freepacks[i].nr = 0; |
255 |
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freepacks[i].offset = freepacks[i+1].offset == NULL ? |
256 |
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NULL : freepacks[i+1].offset+RPACKSIZ ; |
257 |
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freepacks[i].next = &freepacks[i+1]; |
258 |
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} |
259 |
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} |
260 |
gregl |
3.12 |
/* set up signal handling */ |
261 |
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sigdie(SIGINT, "Interrupt"); |
262 |
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sigdie(SIGHUP, "Hangup"); |
263 |
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sigdie(SIGTERM, "Terminate"); |
264 |
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sigdie(SIGPIPE, "Broken pipe"); |
265 |
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sigdie(SIGALRM, "Alarm clock"); |
266 |
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#ifdef SIGXCPU |
267 |
|
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sigdie(SIGXCPU, "CPU limit exceeded"); |
268 |
|
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sigdie(SIGXFSZ, "File size exceeded"); |
269 |
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#endif |
270 |
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/* protect holodeck file */ |
271 |
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orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); |
272 |
gregl |
3.1 |
return; |
273 |
|
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memerr: |
274 |
|
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error(SYSTEM, "out of memory in initrholo"); |
275 |
|
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} |
276 |
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277 |
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278 |
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rholo() /* holodeck main loop */ |
279 |
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{ |
280 |
gwlarson |
3.44 |
static long nextfragwarn = 100*(1L<<20); |
281 |
gregl |
3.30 |
static int idle = 0; |
282 |
gregl |
3.1 |
PACKET *pl = NULL, *plend; |
283 |
gwlarson |
3.44 |
long fsiz; |
284 |
gregl |
3.33 |
int pksiz; |
285 |
gregl |
3.1 |
register PACKET *p; |
286 |
|
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time_t t; |
287 |
gregl |
3.30 |
/* check display */ |
288 |
|
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if (nprocs <= 0) |
289 |
|
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idle = 1; |
290 |
|
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if (outdev != NULL) { |
291 |
gregl |
3.4 |
if (!disp_check(idle)) |
292 |
gregl |
3.30 |
return(0); /* quit request */ |
293 |
|
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if (nprocs <= 0) |
294 |
|
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return(1); |
295 |
|
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} else if (idle) |
296 |
|
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return(0); /* all done */ |
297 |
gwlarson |
3.44 |
fsiz = hdfilen(hdlist[0]->fd); /* check file size */ |
298 |
|
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if (maxdisk > 0 && fsiz >= maxdisk) { |
299 |
gregl |
3.8 |
error(WARNING, "file limit exceeded"); |
300 |
gregl |
3.21 |
done_rtrace(); |
301 |
|
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return(1); /* comes back */ |
302 |
gregl |
3.8 |
} |
303 |
gwlarson |
3.44 |
#if FRAGWARN |
304 |
|
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if (fsiz >= nextfragwarn && |
305 |
|
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(fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { |
306 |
|
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sprintf(errmsg, "holodeck file fragmentation is %.0f%%", |
307 |
|
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100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); |
308 |
|
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error(WARNING, errmsg); |
309 |
|
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nextfragwarn = fsiz + (fsiz>>2); /* decent interval */ |
310 |
|
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} |
311 |
|
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#endif |
312 |
gregl |
3.33 |
t = time(NULL); /* check time */ |
313 |
gregl |
3.8 |
if (endtime > 0 && t >= endtime) { |
314 |
|
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error(WARNING, "time limit exceeded"); |
315 |
gregl |
3.21 |
done_rtrace(); |
316 |
|
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return(1); /* comes back */ |
317 |
gregl |
3.8 |
} |
318 |
gregl |
3.3 |
if (reporttime > 0 && t >= reporttime) |
319 |
gregl |
3.1 |
report(t); |
320 |
gregl |
3.33 |
/* figure out good packet size */ |
321 |
gwlarson |
3.48 |
pksiz = RPACKSIZ; |
322 |
gregl |
3.33 |
#if MAXQTIME |
323 |
gwlarson |
3.48 |
if (!chunkycmp) { |
324 |
|
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pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); |
325 |
|
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if (pksiz < 1) pksiz = 1; |
326 |
|
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else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ; |
327 |
|
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} |
328 |
gregl |
3.33 |
#endif |
329 |
gregl |
3.28 |
idle = 0; /* get packets to process */ |
330 |
gregl |
3.1 |
while (freepacks != NULL) { |
331 |
|
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p = freepacks; freepacks = p->next; p->next = NULL; |
332 |
gregl |
3.33 |
if (!next_packet(p, pksiz)) { |
333 |
gregl |
3.1 |
p->next = freepacks; freepacks = p; |
334 |
gregl |
3.21 |
idle = 1; |
335 |
gregl |
3.1 |
break; |
336 |
|
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} |
337 |
|
|
if (pl == NULL) pl = p; |
338 |
|
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else plend->next = p; |
339 |
|
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plend = p; |
340 |
|
|
} |
341 |
gregl |
3.21 |
/* process packets */ |
342 |
gregl |
3.1 |
done_packets(do_packets(pl)); |
343 |
|
|
return(1); /* and continue */ |
344 |
|
|
} |
345 |
|
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|
346 |
|
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|
347 |
|
|
setdefaults(gp) /* set default values */ |
348 |
|
|
register HDGRID *gp; |
349 |
|
|
{ |
350 |
|
|
extern char *atos(); |
351 |
|
|
register int i; |
352 |
gregl |
3.29 |
int n; |
353 |
gregl |
3.37 |
double len[3], d; |
354 |
gregl |
3.1 |
char buf[64]; |
355 |
|
|
|
356 |
|
|
if (!vdef(SECTION)) { |
357 |
|
|
sprintf(errmsg, "%s must be defined", vnam(SECTION)); |
358 |
|
|
error(USER, errmsg); |
359 |
|
|
} |
360 |
|
|
if (!vdef(OCTREE)) { |
361 |
|
|
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL) |
362 |
|
|
error(SYSTEM, "out of memory"); |
363 |
|
|
sprintf(vval(OCTREE), "%s.oct", froot); |
364 |
|
|
vdef(OCTREE)++; |
365 |
gregl |
3.14 |
} |
366 |
|
|
if (!vdef(VDIST)) { |
367 |
|
|
vval(VDIST) = "F"; |
368 |
|
|
vdef(VDIST)++; |
369 |
gregl |
3.1 |
} |
370 |
|
|
/* append rendering options */ |
371 |
|
|
if (vdef(RENDER)) |
372 |
|
|
rtargc += wordstring(rtargv+rtargc, vval(RENDER)); |
373 |
gregl |
3.15 |
|
374 |
|
|
if (gp == NULL) /* already initialized? */ |
375 |
|
|
return; |
376 |
|
|
/* set grid parameters */ |
377 |
gregl |
3.29 |
for (n = 0; n < vdef(SECTION); n++, gp++) { |
378 |
|
|
gp->grid[0] = gp->grid[1] = gp->grid[2] = 0; |
379 |
|
|
if (sscanf(nvalue(SECTION, n), |
380 |
gregl |
3.16 |
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %hd %hd %hd", |
381 |
gregl |
3.29 |
&gp->orig[0], &gp->orig[1], &gp->orig[2], |
382 |
|
|
&gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2], |
383 |
|
|
&gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2], |
384 |
|
|
&gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2], |
385 |
|
|
&gp->grid[0], &gp->grid[1], &gp->grid[2]) < 12) |
386 |
|
|
badvalue(SECTION); |
387 |
|
|
for (i = 0; i < 3; i++) |
388 |
gregl |
3.37 |
len[i] = VLEN(gp->xv[i]); |
389 |
|
|
if (!vdef(GRID)) { |
390 |
gwlarson |
3.43 |
d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] + |
391 |
gregl |
3.37 |
len[2]*len[2] + 4*len[1]*len[2]) |
392 |
|
|
+ len[1]*len[1]*len[2]*(len[2] + 4*len[0]) |
393 |
|
|
+ 4*len[0]*len[1]*len[2]*len[2] ); |
394 |
|
|
d = sqrt(sqrt(d)); |
395 |
|
|
} else if ((d = vflt(GRID)) <= FTINY) |
396 |
gregl |
3.29 |
badvalue(GRID); |
397 |
|
|
for (i = 0; i < 3; i++) |
398 |
|
|
if (gp->grid[i] <= 0) |
399 |
|
|
gp->grid[i] = len[i]/d + (1.-FTINY); |
400 |
gregl |
3.15 |
} |
401 |
gregl |
3.1 |
} |
402 |
|
|
|
403 |
|
|
|
404 |
|
|
creatholo(gp) /* create a holodeck output file */ |
405 |
|
|
HDGRID *gp; |
406 |
|
|
{ |
407 |
gregl |
3.12 |
extern char VersionID[]; |
408 |
gregl |
3.29 |
int4 lastloc, nextloc; |
409 |
|
|
int n; |
410 |
gregl |
3.10 |
int fd; |
411 |
gregl |
3.1 |
FILE *fp; |
412 |
|
|
/* open & truncate file */ |
413 |
|
|
if ((fp = fopen(hdkfile, "w+")) == NULL) { |
414 |
|
|
sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile); |
415 |
|
|
error(SYSTEM, errmsg); |
416 |
|
|
} |
417 |
|
|
/* write information header */ |
418 |
|
|
newheader("RADIANCE", fp); |
419 |
gregl |
3.12 |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
420 |
gregl |
3.1 |
printvars(fp); |
421 |
|
|
fputformat(HOLOFMT, fp); |
422 |
|
|
fputc('\n', fp); |
423 |
gregl |
3.29 |
putw(HOLOMAGIC, fp); /* put magic number */ |
424 |
gregl |
3.10 |
fd = dup(fileno(fp)); |
425 |
|
|
fclose(fp); /* flush and close stdio stream */ |
426 |
gregl |
3.29 |
lastloc = lseek(fd, 0L, 2); |
427 |
|
|
for (n = vdef(SECTION); n--; gp++) { /* initialize each section */ |
428 |
|
|
nextloc = 0L; |
429 |
|
|
write(fd, (char *)&nextloc, sizeof(nextloc)); |
430 |
|
|
hdinit(fd, gp); /* writes beam index */ |
431 |
|
|
if (!n) |
432 |
|
|
break; |
433 |
|
|
nextloc = hdfilen(fd); /* write section pointer */ |
434 |
|
|
if (lseek(fd, (long)lastloc, 0) < 0) |
435 |
|
|
error(SYSTEM, |
436 |
|
|
"cannot seek on holodeck file in creatholo"); |
437 |
|
|
write(fd, (char *)&nextloc, sizeof(nextloc)); |
438 |
|
|
lseek(fd, (long)(lastloc=nextloc), 0); |
439 |
|
|
} |
440 |
gregl |
3.1 |
} |
441 |
|
|
|
442 |
|
|
|
443 |
gwlarson |
3.42 |
int |
444 |
gregl |
3.1 |
headline(s) /* process information header line */ |
445 |
|
|
char *s; |
446 |
|
|
{ |
447 |
|
|
extern char FMTSTR[]; |
448 |
|
|
register char *cp; |
449 |
|
|
char fmt[32]; |
450 |
|
|
|
451 |
gregl |
3.2 |
if (formatval(fmt, s)) { |
452 |
gregl |
3.1 |
if (strcmp(fmt, HOLOFMT)) { |
453 |
|
|
sprintf(errmsg, "%s file \"%s\" has %s%s", |
454 |
|
|
HOLOFMT, hdkfile, FMTSTR, fmt); |
455 |
|
|
error(USER, errmsg); |
456 |
|
|
} |
457 |
gwlarson |
3.42 |
return(0); |
458 |
gregl |
3.1 |
} |
459 |
|
|
for (cp = s; *cp; cp++) /* take off any comments */ |
460 |
|
|
if (*cp == '#') { |
461 |
|
|
*cp = '\0'; |
462 |
|
|
break; |
463 |
|
|
} |
464 |
|
|
setvariable(s, matchvar); /* don't flag errors */ |
465 |
gwlarson |
3.42 |
return(0); |
466 |
gregl |
3.1 |
} |
467 |
|
|
|
468 |
|
|
|
469 |
|
|
loadholo() /* start loading a holodeck from fname */ |
470 |
|
|
{ |
471 |
gregl |
3.10 |
extern long ftell(); |
472 |
gregl |
3.1 |
FILE *fp; |
473 |
gregl |
3.10 |
int fd; |
474 |
gregl |
3.29 |
int n; |
475 |
|
|
int4 nextloc; |
476 |
gregl |
3.4 |
/* open holodeck file */ |
477 |
|
|
if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) { |
478 |
gwlarson |
3.39 |
sprintf(errmsg, "cannot %s \"%s\"", |
479 |
|
|
ncprocs>0 ? "append" : "read", hdkfile); |
480 |
gregl |
3.1 |
error(SYSTEM, errmsg); |
481 |
|
|
} |
482 |
|
|
/* load variables from header */ |
483 |
|
|
getheader(fp, headline, NULL); |
484 |
|
|
/* check magic number */ |
485 |
|
|
if (getw(fp) != HOLOMAGIC) { |
486 |
|
|
sprintf(errmsg, "bad magic number in holodeck file \"%s\"", |
487 |
|
|
hdkfile); |
488 |
|
|
error(USER, errmsg); |
489 |
|
|
} |
490 |
gregl |
3.29 |
nextloc = ftell(fp); /* get stdio position */ |
491 |
gregl |
3.10 |
fd = dup(fileno(fp)); |
492 |
|
|
fclose(fp); /* done with stdio */ |
493 |
gregl |
3.29 |
for (n = 0; nextloc > 0L; n++) { /* initialize each section */ |
494 |
|
|
lseek(fd, (long)nextloc, 0); |
495 |
|
|
read(fd, (char *)&nextloc, sizeof(nextloc)); |
496 |
|
|
hdinit(fd, NULL); |
497 |
|
|
} |
498 |
|
|
if (n != vdef(SECTION)) { |
499 |
|
|
sprintf(errmsg, "number of sections does not match %s setting", |
500 |
|
|
vnam(SECTION)); |
501 |
|
|
error(WARNING, errmsg); |
502 |
|
|
} |
503 |
gregl |
3.1 |
} |
504 |
|
|
|
505 |
|
|
|
506 |
|
|
done_packets(pl) /* handle finished packets */ |
507 |
|
|
PACKET *pl; |
508 |
|
|
{ |
509 |
gregl |
3.13 |
static int n2flush = 0; |
510 |
gregl |
3.1 |
register PACKET *p; |
511 |
|
|
|
512 |
|
|
while (pl != NULL) { |
513 |
|
|
p = pl; pl = p->next; p->next = NULL; |
514 |
|
|
if (p->nr > 0) { /* add to holodeck */ |
515 |
|
|
bcopy((char *)p->ra, |
516 |
|
|
(char *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
517 |
|
|
p->nr*sizeof(RAYVAL)); |
518 |
|
|
if (outdev != NULL) /* display it */ |
519 |
gregl |
3.7 |
disp_packet((PACKHEAD *)p); |
520 |
gwlarson |
3.46 |
if (hdcachesize <= 0) { |
521 |
|
|
#if RTFLUSH |
522 |
|
|
if (outdev == NULL) |
523 |
|
|
hdfreebeam(hdlist[p->hd], p->bi); |
524 |
|
|
#endif |
525 |
gregl |
3.33 |
n2flush++; |
526 |
gwlarson |
3.46 |
} |
527 |
gregl |
3.6 |
nraysdone += p->nr; |
528 |
|
|
npacksdone++; |
529 |
gregl |
3.33 |
p->nr = 0; |
530 |
gregl |
3.1 |
} |
531 |
gregl |
3.33 |
p->next = freepacks; /* push onto free list */ |
532 |
gregl |
3.1 |
freepacks = p; |
533 |
gregl |
3.5 |
} |
534 |
gwlarson |
3.41 |
#if MAXQTIME |
535 |
gwlarson |
3.38 |
if (n2flush > 300/MAXQTIME*totqlen) { |
536 |
gwlarson |
3.41 |
#else |
537 |
|
|
if (n2flush > 50*totqlen) { |
538 |
|
|
#endif |
539 |
gwlarson |
3.46 |
#if RTFLUSH |
540 |
|
|
hdsync(NULL, outdev!=NULL); /* sync beams & directories */ |
541 |
|
|
#else |
542 |
|
|
if (outdev != NULL) |
543 |
|
|
hdsync(NULL, 1); |
544 |
gwlarson |
3.41 |
else |
545 |
gwlarson |
3.46 |
hdflush(NULL); |
546 |
|
|
#endif |
547 |
gregl |
3.13 |
n2flush = 0; |
548 |
gregl |
3.1 |
} |
549 |
|
|
} |
550 |
|
|
|
551 |
|
|
|
552 |
|
|
rootname(rn, fn) /* remove tail from end of fn */ |
553 |
|
|
register char *rn, *fn; |
554 |
|
|
{ |
555 |
|
|
char *tp, *dp; |
556 |
|
|
|
557 |
|
|
for (tp = NULL, dp = rn; *rn = *fn++; rn++) |
558 |
gregl |
3.22 |
if (*rn == '/') |
559 |
gregl |
3.1 |
dp = rn; |
560 |
|
|
else if (*rn == '.') |
561 |
|
|
tp = rn; |
562 |
|
|
if (tp != NULL && tp > dp) |
563 |
|
|
*tp = '\0'; |
564 |
|
|
} |
565 |
|
|
|
566 |
|
|
|
567 |
|
|
badvalue(vc) /* report bad variable value and exit */ |
568 |
|
|
int vc; |
569 |
|
|
{ |
570 |
|
|
sprintf(errmsg, "bad value for variable '%s'", vnam(vc)); |
571 |
|
|
error(USER, errmsg); |
572 |
|
|
} |
573 |
|
|
|
574 |
|
|
|
575 |
|
|
eputs(s) /* put error message to stderr */ |
576 |
|
|
register char *s; |
577 |
|
|
{ |
578 |
|
|
static int midline = 0; |
579 |
|
|
|
580 |
|
|
if (!*s) |
581 |
|
|
return; |
582 |
|
|
if (!midline++) { /* prepend line with program name */ |
583 |
|
|
fputs(progname, stderr); |
584 |
|
|
fputs(": ", stderr); |
585 |
|
|
} |
586 |
|
|
fputs(s, stderr); |
587 |
|
|
if (s[strlen(s)-1] == '\n') { |
588 |
|
|
fflush(stderr); |
589 |
|
|
midline = 0; |
590 |
|
|
} |
591 |
|
|
} |
592 |
|
|
|
593 |
|
|
|
594 |
|
|
quit(ec) /* exit program gracefully */ |
595 |
|
|
int ec; |
596 |
|
|
{ |
597 |
|
|
int status = 0; |
598 |
|
|
|
599 |
gregl |
3.24 |
if (hdlist[0] != NULL) { /* close holodeck */ |
600 |
gregl |
3.21 |
if (nprocs > 0) |
601 |
gregl |
3.24 |
status = done_rtrace(); /* calls hdsync() */ |
602 |
gregl |
3.19 |
if (ncprocs > 0 && vdef(REPORT)) { |
603 |
|
|
long fsiz, fuse; |
604 |
|
|
fsiz = hdfilen(hdlist[0]->fd); |
605 |
|
|
fuse = hdfiluse(hdlist[0]->fd, 1); |
606 |
|
|
fprintf(stderr, |
607 |
gregl |
3.3 |
"%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n", |
608 |
gregl |
3.19 |
hdkfile, fsiz/(1024.*1024.), |
609 |
|
|
100.*(fsiz-fuse)/fsiz); |
610 |
|
|
} |
611 |
gregl |
3.1 |
} |
612 |
gregl |
3.12 |
if (orig_mode >= 0) /* reset holodeck access mode */ |
613 |
|
|
fchmod(hdlist[0]->fd, orig_mode); |
614 |
gregl |
3.11 |
if (outdev != NULL) /* close display */ |
615 |
|
|
disp_close(); |
616 |
gregl |
3.1 |
exit(ec ? ec : status); /* exit */ |
617 |
|
|
} |