| 9 |
|
*/ |
| 10 |
|
|
| 11 |
|
#include "rholo.h" |
| 12 |
+ |
#include "random.h" |
| 13 |
|
#include "paths.h" |
| 14 |
+ |
#include <signal.h> |
| 15 |
|
#include <sys/types.h> |
| 16 |
+ |
#include <sys/stat.h> |
| 17 |
|
|
| 18 |
|
/* the following must be consistent with rholo.h */ |
| 19 |
|
int NVARS = NRHVARS; /* total number of variables */ |
| 41 |
|
int rtargc = 1; /* rtrace command */ |
| 42 |
|
char *rtargv[128] = {"rtrace", NULL}; |
| 43 |
|
|
| 44 |
+ |
int orig_mode = -1; /* original file mode (-1 if unchanged) */ |
| 45 |
+ |
|
| 46 |
|
long nraysdone = 0L; /* number of rays done */ |
| 47 |
|
long npacksdone = 0L; /* number of packets done */ |
| 48 |
|
|
| 49 |
|
PACKET *freepacks; /* available packets */ |
| 50 |
|
|
| 51 |
+ |
char *sigerr[NSIG]; /* signal error messages */ |
| 52 |
+ |
|
| 53 |
|
extern time_t time(); |
| 54 |
|
|
| 55 |
|
|
| 62 |
|
int force = 0; |
| 63 |
|
/* mark start time */ |
| 64 |
|
starttime = time(NULL); |
| 65 |
+ |
initurand(10240); /* initialize urand */ |
| 66 |
|
progname = argv[0]; /* get arguments */ |
| 67 |
|
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
| 68 |
|
switch (argv[i][1]) { |
| 133 |
|
} |
| 134 |
|
|
| 135 |
|
|
| 136 |
+ |
onsig(signo) /* fatal signal */ |
| 137 |
+ |
int signo; |
| 138 |
+ |
{ |
| 139 |
+ |
static int gotsig = 0; |
| 140 |
+ |
|
| 141 |
+ |
if (gotsig++) /* two signals and we're gone! */ |
| 142 |
+ |
_exit(signo); |
| 143 |
+ |
|
| 144 |
+ |
alarm(30); /* allow 30 seconds to clean up */ |
| 145 |
+ |
signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
| 146 |
+ |
eputs("signal - "); |
| 147 |
+ |
eputs(sigerr[signo]); |
| 148 |
+ |
eputs("\n"); |
| 149 |
+ |
quit(3); |
| 150 |
+ |
} |
| 151 |
+ |
|
| 152 |
+ |
|
| 153 |
+ |
sigdie(signo, msg) /* set fatal signal */ |
| 154 |
+ |
int signo; |
| 155 |
+ |
char *msg; |
| 156 |
+ |
{ |
| 157 |
+ |
if (signal(signo, onsig) == SIG_IGN) |
| 158 |
+ |
signal(signo, SIG_IGN); |
| 159 |
+ |
sigerr[signo] = msg; |
| 160 |
+ |
} |
| 161 |
+ |
|
| 162 |
+ |
|
| 163 |
+ |
int |
| 164 |
+ |
resfmode(fd, mod) /* restrict open file access mode */ |
| 165 |
+ |
int fd, mod; |
| 166 |
+ |
{ |
| 167 |
+ |
struct stat stbuf; |
| 168 |
+ |
/* get original mode */ |
| 169 |
+ |
if (fstat(fd, &stbuf) < 0) |
| 170 |
+ |
error(SYSTEM, "cannot stat open holodeck file"); |
| 171 |
+ |
mod &= stbuf.st_mode; /* always more restrictive */ |
| 172 |
+ |
if (mod == stbuf.st_mode) |
| 173 |
+ |
return(-1); /* already set */ |
| 174 |
+ |
/* else change it */ |
| 175 |
+ |
if (fchmod(fd, mod) < 0) { |
| 176 |
+ |
error(WARNING, "cannot change holodeck file access mode"); |
| 177 |
+ |
return(-1); |
| 178 |
+ |
} |
| 179 |
+ |
return(stbuf.st_mode); /* return original mode */ |
| 180 |
+ |
} |
| 181 |
+ |
|
| 182 |
+ |
|
| 183 |
|
initrholo() /* get our holodeck running */ |
| 184 |
|
{ |
| 185 |
|
extern int global_packet(); |
| 239 |
|
freepacks[i].next = &freepacks[i+1]; |
| 240 |
|
} |
| 241 |
|
} |
| 242 |
+ |
/* set up signal handling */ |
| 243 |
+ |
sigdie(SIGINT, "Interrupt"); |
| 244 |
+ |
sigdie(SIGHUP, "Hangup"); |
| 245 |
+ |
sigdie(SIGTERM, "Terminate"); |
| 246 |
+ |
sigdie(SIGPIPE, "Broken pipe"); |
| 247 |
+ |
sigdie(SIGALRM, "Alarm clock"); |
| 248 |
+ |
#ifdef SIGXCPU |
| 249 |
+ |
sigdie(SIGXCPU, "CPU limit exceeded"); |
| 250 |
+ |
sigdie(SIGXFSZ, "File size exceeded"); |
| 251 |
+ |
#endif |
| 252 |
+ |
/* protect holodeck file */ |
| 253 |
+ |
orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); |
| 254 |
|
return; |
| 255 |
|
memerr: |
| 256 |
|
error(SYSTEM, "out of memory in initrholo"); |
| 371 |
|
vval(OBSTRUCTIONS) = "T"; |
| 372 |
|
vdef(OBSTRUCTIONS)++; |
| 373 |
|
} |
| 374 |
+ |
if (!vdef(VDIST)) { |
| 375 |
+ |
vval(VDIST) = "F"; |
| 376 |
+ |
vdef(VDIST)++; |
| 377 |
+ |
} |
| 378 |
|
if (!vdef(OCCUPANCY)) { |
| 379 |
|
vval(OCCUPANCY) = "U"; |
| 380 |
|
vdef(OCCUPANCY)++; |
| 388 |
|
creatholo(gp) /* create a holodeck output file */ |
| 389 |
|
HDGRID *gp; |
| 390 |
|
{ |
| 391 |
+ |
extern char VersionID[]; |
| 392 |
|
long endloc = 0; |
| 393 |
|
int fd; |
| 394 |
|
FILE *fp; |
| 399 |
|
} |
| 400 |
|
/* write information header */ |
| 401 |
|
newheader("RADIANCE", fp); |
| 402 |
+ |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
| 403 |
|
printvars(fp); |
| 404 |
|
fputformat(HOLOFMT, fp); |
| 405 |
|
fputc('\n', fp); |
| 469 |
|
done_packets(pl) /* handle finished packets */ |
| 470 |
|
PACKET *pl; |
| 471 |
|
{ |
| 472 |
< |
static int nunflushed = 0; |
| 472 |
> |
static int n2flush = 0; |
| 473 |
|
register PACKET *p; |
| 474 |
|
|
| 475 |
|
while (pl != NULL) { |
| 480 |
|
p->nr*sizeof(RAYVAL)); |
| 481 |
|
if (outdev != NULL) /* display it */ |
| 482 |
|
disp_packet((PACKHEAD *)p); |
| 483 |
< |
else |
| 484 |
< |
nunflushed += p->nr; |
| 483 |
> |
if (hdcachesize <= 0) /* manual flushing */ |
| 484 |
> |
n2flush += p->nr; |
| 485 |
|
nraysdone += p->nr; |
| 486 |
|
npacksdone++; |
| 487 |
|
} |
| 489 |
|
p->next = freepacks; |
| 490 |
|
freepacks = p; |
| 491 |
|
} |
| 492 |
< |
if (nunflushed >= 256*RPACKSIZ) { |
| 492 |
> |
if (n2flush > 512*RPACKSIZ*ncprocs) { |
| 493 |
|
hdflush(NULL); /* flush holodeck buffers */ |
| 494 |
< |
nunflushed = 0; |
| 494 |
> |
n2flush = 0; |
| 495 |
|
} |
| 496 |
|
} |
| 497 |
|
|
| 616 |
|
} else |
| 617 |
|
hdflush(NULL); |
| 618 |
|
} |
| 619 |
+ |
if (orig_mode >= 0) /* reset holodeck access mode */ |
| 620 |
+ |
fchmod(hdlist[0]->fd, orig_mode); |
| 621 |
|
if (outdev != NULL) /* close display */ |
| 622 |
|
disp_close(); |
| 623 |
|
exit(ec ? ec : status); /* exit */ |
