| 1 |
#ifndef lint
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| 2 |
static const char RCSid[] = "$Id: rholo.c,v 3.71 2005/12/16 21:43:07 greg Exp $";
|
| 3 |
#endif
|
| 4 |
/*
|
| 5 |
* Radiance holodeck generation controller
|
| 6 |
*/
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| 7 |
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| 8 |
#include <stdio.h>
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| 9 |
#include <time.h>
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| 10 |
#include <signal.h>
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| 11 |
#include <sys/stat.h>
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| 12 |
#include <string.h>
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| 13 |
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| 14 |
#include "platform.h"
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| 15 |
#include "rterror.h"
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| 16 |
#include "resolu.h"
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| 17 |
#include "rholo.h"
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| 18 |
#include "random.h"
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| 19 |
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| 20 |
#ifndef FRAGWARN
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| 21 |
#define FRAGWARN 20 /* fragmentation for warning (%) */
|
| 22 |
#endif
|
| 23 |
#ifndef MAXQTIME
|
| 24 |
#define MAXQTIME 5 /* target maximum seconds in queue */
|
| 25 |
#endif
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| 26 |
/* manual cache flushing frequency */
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| 27 |
#ifndef RTFLUSH
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| 28 |
#if MAXQTIME
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| 29 |
#define RTFLUSH (300/MAXQTIME*totqlen) /* <= 5 minutes */
|
| 30 |
#else
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| 31 |
#define RTFLUSH (50*totqlen) /* just guess */
|
| 32 |
#endif
|
| 33 |
#endif
|
| 34 |
/* the following must be consistent with rholo.h */
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| 35 |
int NVARS = NRHVARS; /* total number of variables */
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| 36 |
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| 37 |
VARIABLE vv[] = RHVINIT; /* variable-value pairs */
|
| 38 |
|
| 39 |
char *progname; /* our program name */
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| 40 |
char *hdkfile; /* holodeck file name */
|
| 41 |
char froot[256]; /* root file name */
|
| 42 |
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| 43 |
int ncprocs = 0; /* desired number of compute processes */
|
| 44 |
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| 45 |
char *outdev = NULL; /* output device name */
|
| 46 |
|
| 47 |
int readinp = 0; /* read commands from stdin */
|
| 48 |
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| 49 |
int force = 0; /* allow overwrite of holodeck (-1 == read-only) */
|
| 50 |
|
| 51 |
time_t starttime; /* time we got started */
|
| 52 |
time_t endtime; /* time we should end by */
|
| 53 |
time_t reporttime; /* time for next report */
|
| 54 |
|
| 55 |
off_t maxdisk; /* maximum file space (bytes) */
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| 56 |
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| 57 |
int rtargc = 1; /* rtrace command */
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| 58 |
char *rtargv[128] = {"rtrace", NULL};
|
| 59 |
|
| 60 |
int orig_mode = -1; /* original file mode (-1 if unchanged) */
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| 61 |
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| 62 |
long nraysdone = 0L; /* number of rays done */
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| 63 |
long npacksdone = 0L; /* number of packets done */
|
| 64 |
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| 65 |
PACKET *freepacks; /* available packets */
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| 66 |
int totqlen; /* maximum queue length (number of packets) */
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| 67 |
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| 68 |
char *sigerr[NSIG]; /* signal error messages */
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| 69 |
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| 70 |
extern int nowarn; /* turn warnings off? */
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| 71 |
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| 72 |
static void onsig(int signo);
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| 73 |
static void sigdie(int signo, char *msg);
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| 74 |
static int resfmode(int fd, int mod);
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| 75 |
static void initrholo(void);
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| 76 |
static int rholo(void);
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| 77 |
static void setdefaults(HDGRID *gp);
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| 78 |
static void creatholo(HDGRID *gp);
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| 79 |
static gethfunc headline;
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| 80 |
static void loadholo(void);
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| 81 |
static void rootname(char *rn, char *fn);
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| 82 |
static void badvalue(int vc);
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| 83 |
|
| 84 |
|
| 85 |
int
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main(
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| 87 |
int argc,
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| 88 |
char *argv[]
|
| 89 |
)
|
| 90 |
{
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| 91 |
int i;
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| 92 |
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| 93 |
progname = argv[0]; /* get arguments */
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| 94 |
for (i = 1; i < argc && argv[i][0] == '-'; i++)
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| 95 |
switch (argv[i][1]) {
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| 96 |
case 'w': /* turn off warnings */
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| 97 |
nowarn++;
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| 98 |
break;
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| 99 |
case 'f': /* force overwrite */
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| 100 |
force = 1;
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| 101 |
break;
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| 102 |
case 'r': /* read-only mode */
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| 103 |
force = -1;
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| 104 |
break;
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| 105 |
case 'i': /* read input from stdin */
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| 106 |
readinp++;
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| 107 |
break;
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| 108 |
case 'n': /* compute processes */
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| 109 |
if (i >= argc-2)
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| 110 |
goto userr;
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| 111 |
ncprocs = atoi(argv[++i]);
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| 112 |
break;
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| 113 |
case 'o': /* output display */
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| 114 |
if (i >= argc-2)
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| 115 |
goto userr;
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| 116 |
outdev = argv[++i];
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| 117 |
break;
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| 118 |
default:
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| 119 |
goto userr;
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| 120 |
}
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| 121 |
/* get root file name */
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| 122 |
if (i >= argc)
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| 123 |
goto userr;
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| 124 |
rootname(froot, hdkfile=argv[i++]);
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| 125 |
/* load variables? */
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| 126 |
if (i < argc)
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| 127 |
if (argv[i][0] != '-' && argv[i][0] != '+')
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| 128 |
loadvars(argv[i]); /* load variables from file */
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| 129 |
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| 130 |
if (i >= argc || argv[i][0] == '+')
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| 131 |
loadholo(); /* load existing holodeck */
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| 132 |
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| 133 |
while (++i < argc) /* get command line settings */
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| 134 |
if (setvariable(argv[i], matchvar) < 0) {
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| 135 |
sprintf(errmsg, "unknown variable: %s", argv[i]);
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| 136 |
error(USER, errmsg);
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| 137 |
}
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| 138 |
/* check settings */
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| 139 |
checkvalues();
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| 140 |
/* load rad input file */
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| 141 |
getradfile();
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| 142 |
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| 143 |
if (hdlist[0] == NULL) { /* create new holodeck */
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| 144 |
HDGRID hdg[HDMAX];
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| 145 |
/* set defaults */
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| 146 |
setdefaults(hdg);
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| 147 |
/* check read-only */
|
| 148 |
if (force < 0)
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| 149 |
error(USER, "cannot create read-only holodeck");
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| 150 |
/* holodeck exists? */
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| 151 |
if (!force && access(hdkfile, R_OK|W_OK) == 0)
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| 152 |
error(USER,
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| 153 |
"holodeck file exists -- use -f to overwrite");
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| 154 |
/* create holodeck */
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| 155 |
creatholo(hdg);
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| 156 |
} else /* else just set defaults */
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| 157 |
setdefaults(NULL);
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| 158 |
/* initialize */
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initrholo();
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| 160 |
/* main loop */
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| 161 |
while (rholo())
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;
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| 163 |
/* done */
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| 164 |
quit(0);
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| 165 |
userr:
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| 166 |
fprintf(stderr,
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| 167 |
"Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n",
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| 168 |
progname);
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| 169 |
quit(1);
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| 170 |
return 1; /* pro forma return */
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| 171 |
}
|
| 172 |
|
| 173 |
|
| 174 |
static void
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| 175 |
onsig( /* fatal signal */
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| 176 |
int signo
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| 177 |
)
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| 178 |
{
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| 179 |
static int gotsig = 0;
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| 180 |
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| 181 |
if (gotsig > 1) /* we're going as fast as we can! */
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| 182 |
return;
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| 183 |
if (gotsig++) { /* two signals and we split */
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| 184 |
hdsync(NULL, 0); /* don't leave w/o saying goodbye */
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| 185 |
_exit(signo);
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| 186 |
}
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| 187 |
alarm(300); /* allow 5 minutes to clean up */
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| 188 |
eputs("signal - ");
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| 189 |
eputs(sigerr[signo]);
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| 190 |
eputs("\n");
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| 191 |
quit(3);
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| 192 |
}
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| 193 |
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| 194 |
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| 195 |
static void
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| 196 |
sigdie( /* set fatal signal */
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| 197 |
int signo,
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| 198 |
char *msg
|
| 199 |
)
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| 200 |
{
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| 201 |
if (signal(signo, onsig) == SIG_IGN)
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| 202 |
signal(signo, SIG_IGN);
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| 203 |
sigerr[signo] = msg;
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| 204 |
}
|
| 205 |
|
| 206 |
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| 207 |
static int
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| 208 |
resfmode( /* restrict open file access mode */
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| 209 |
int fd,
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| 210 |
int mod
|
| 211 |
)
|
| 212 |
{
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| 213 |
struct stat stbuf;
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| 214 |
/* get original mode */
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| 215 |
if (fstat(fd, &stbuf) < 0)
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| 216 |
error(SYSTEM, "cannot stat open holodeck file");
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| 217 |
mod &= stbuf.st_mode; /* always more restrictive */
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| 218 |
if (mod == (stbuf.st_mode & 0777))
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return(-1); /* already set */
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/* else change it */
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if (fchmod(fd, mod) < 0) {
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error(WARNING, "cannot change holodeck file access mode");
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| 223 |
return(-1);
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}
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| 225 |
return(stbuf.st_mode); /* return original mode */
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}
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| 228 |
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| 229 |
static void
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initrholo(void) /* get our holodeck running */
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{
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| 232 |
extern int global_packet();
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register int i;
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| 234 |
/* close holodeck on exec() */
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fcntl(hdlist[0]->fd, F_SETFD, FD_CLOEXEC);
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if (outdev != NULL) /* open output device */
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disp_open(outdev);
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else if (ncprocs > 0) /* else use global ray feed */
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init_global();
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/* record disk space limit */
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if (!vdef(DISKSPACE))
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maxdisk = ((off_t)1<<(sizeof(off_t)*8-2)) - 1024;
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else
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maxdisk = 1024.*1024.*vflt(DISKSPACE);
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/* set up memory cache */
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if (outdev == NULL)
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hdcachesize = 0; /* manual flushing */
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else if (vdef(CACHE))
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hdcachesize = 1024.*1024.*vflt(CACHE);
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/* open report file */
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if (vdef(REPORT)) {
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register char *s = sskip2(vval(REPORT), 1);
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if (*s && freopen(s, "a", stderr) == NULL)
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quit(2);
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}
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/* mark the starting time */
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starttime = time(NULL);
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| 259 |
/* compute end time */
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| 260 |
if (!vdef(TIME) || vflt(TIME) <= FTINY)
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endtime = 0;
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else
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endtime = starttime + vflt(TIME)*3600. + .5;
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| 264 |
/* start rtrace */
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if (ncprocs > 0) {
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totqlen = i = start_rtrace();
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| 267 |
if (i < 1)
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| 268 |
error(USER, "cannot start rtrace process(es)");
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| 269 |
if (vdef(REPORT)) { /* make first report */
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| 270 |
printargs(rtargc, rtargv, stderr);
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| 271 |
report(0);
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}
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| 273 |
/* allocate packets */
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| 274 |
freepacks = (PACKET *)bmalloc(i*sizeof(PACKET));
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| 275 |
if (freepacks == NULL)
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| 276 |
goto memerr;
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| 277 |
freepacks[--i].nr = 0;
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| 278 |
freepacks[i].next = NULL;
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| 279 |
if (!vdef(OBSTRUCTIONS) || !vbool(OBSTRUCTIONS)) {
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| 280 |
freepacks[i].offset = (float *)bmalloc(
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| 281 |
RPACKSIZ*sizeof(float)*(i+1) );
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| 282 |
if (freepacks[i].offset == NULL)
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| 283 |
goto memerr;
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| 284 |
} else
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| 285 |
freepacks[i].offset = NULL;
|
| 286 |
while (i--) {
|
| 287 |
freepacks[i].nr = 0;
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| 288 |
freepacks[i].offset = freepacks[i+1].offset == NULL ?
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| 289 |
NULL : freepacks[i+1].offset+RPACKSIZ ;
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| 290 |
freepacks[i].next = &freepacks[i+1];
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| 291 |
}
|
| 292 |
}
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| 293 |
/* set up signal handling */
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| 294 |
sigdie(SIGINT, "Interrupt");
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| 295 |
sigdie(SIGTERM, "Terminate");
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| 296 |
#ifdef SIGHUP
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| 297 |
sigdie(SIGHUP, "Hangup");
|
| 298 |
#endif
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| 299 |
#ifdef SIGPIPE
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| 300 |
sigdie(SIGPIPE, "Broken pipe");
|
| 301 |
#endif
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| 302 |
#ifdef SIGALRM
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| 303 |
sigdie(SIGALRM, "Alarm clock");
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| 304 |
#endif
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| 305 |
#ifdef SIGXCPU
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| 306 |
sigdie(SIGXCPU, "CPU limit exceeded");
|
| 307 |
#endif
|
| 308 |
#ifdef SIGXFSZ
|
| 309 |
sigdie(SIGXFSZ, "File size exceeded");
|
| 310 |
#endif
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| 311 |
/* protect holodeck file */
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| 312 |
orig_mode = resfmode(hdlist[0]->fd, (ncprocs>0) & (force>=0) ? 0 : 0444);
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| 313 |
return;
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| 314 |
memerr:
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| 315 |
error(SYSTEM, "out of memory in initrholo");
|
| 316 |
}
|
| 317 |
|
| 318 |
|
| 319 |
static int
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| 320 |
rholo(void) /* holodeck main loop */
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| 321 |
{
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| 322 |
static off_t nextfragwarn = 100L<<20;
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| 323 |
static int idle = 0;
|
| 324 |
PACKET *pl = NULL, *plend;
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| 325 |
off_t fsiz;
|
| 326 |
int pksiz;
|
| 327 |
register PACKET *p;
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| 328 |
time_t t;
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| 329 |
/* check display */
|
| 330 |
if (nprocs <= 0)
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| 331 |
idle = 1;
|
| 332 |
if (outdev != NULL) {
|
| 333 |
if (!disp_check(idle))
|
| 334 |
return(0); /* quit request */
|
| 335 |
if (nprocs <= 0)
|
| 336 |
return(1);
|
| 337 |
} else if (idle)
|
| 338 |
return(0); /* all done */
|
| 339 |
fsiz = hdfilen(hdlist[0]->fd); /* check file size */
|
| 340 |
if (maxdisk > 0 && fsiz >= maxdisk) {
|
| 341 |
error(USER, "file limit exceeded");
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| 342 |
done_rtrace();
|
| 343 |
return(1); /* comes back */
|
| 344 |
}
|
| 345 |
#if FRAGWARN
|
| 346 |
if (fsiz >= nextfragwarn) {
|
| 347 |
double pctfrag = 100.*(fsiz-hdfiluse(hdlist[0]->fd))/fsiz;
|
| 348 |
if (pctfrag >= (double)FRAGWARN) {
|
| 349 |
sprintf(errmsg, "holodeck file fragmentation is %.0f%%",
|
| 350 |
pctfrag);
|
| 351 |
error(WARNING, errmsg);
|
| 352 |
nextfragwarn = fsiz + (fsiz>>2);
|
| 353 |
} else
|
| 354 |
nextfragwarn = fsiz + (10L<<20);
|
| 355 |
}
|
| 356 |
#endif
|
| 357 |
t = time(NULL); /* check time */
|
| 358 |
if (endtime > 0 && t >= endtime) {
|
| 359 |
error(USER, "time limit exceeded");
|
| 360 |
done_rtrace();
|
| 361 |
return(1); /* comes back */
|
| 362 |
}
|
| 363 |
if (reporttime > 0 && t >= reporttime)
|
| 364 |
report(t);
|
| 365 |
/* figure out good packet size */
|
| 366 |
pksiz = RPACKSIZ;
|
| 367 |
#if MAXQTIME
|
| 368 |
if (!chunkycmp) {
|
| 369 |
pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L));
|
| 370 |
if (pksiz < 1) pksiz = 1;
|
| 371 |
else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ;
|
| 372 |
}
|
| 373 |
#endif
|
| 374 |
idle = 0; /* get packets to process */
|
| 375 |
while (freepacks != NULL) {
|
| 376 |
p = freepacks; freepacks = p->next; p->next = NULL;
|
| 377 |
if (!next_packet(p, pksiz)) {
|
| 378 |
p->next = freepacks; freepacks = p;
|
| 379 |
idle = 1;
|
| 380 |
break;
|
| 381 |
}
|
| 382 |
if (pl == NULL) pl = p;
|
| 383 |
else plend->next = p;
|
| 384 |
plend = p;
|
| 385 |
}
|
| 386 |
/* process packets */
|
| 387 |
done_packets(do_packets(pl));
|
| 388 |
return(1); /* and continue */
|
| 389 |
}
|
| 390 |
|
| 391 |
|
| 392 |
static void
|
| 393 |
setdefaults( /* set default values */
|
| 394 |
register HDGRID *gp
|
| 395 |
)
|
| 396 |
{
|
| 397 |
extern char *atos();
|
| 398 |
register int i;
|
| 399 |
int n;
|
| 400 |
double len[3], d;
|
| 401 |
|
| 402 |
if (!vdef(SECTION)) {
|
| 403 |
sprintf(errmsg, "%s must be defined", vnam(SECTION));
|
| 404 |
error(USER, errmsg);
|
| 405 |
}
|
| 406 |
if (!vdef(OCTREE)) {
|
| 407 |
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL)
|
| 408 |
error(SYSTEM, "out of memory");
|
| 409 |
sprintf(vval(OCTREE), "%s.oct", froot);
|
| 410 |
vdef(OCTREE)++;
|
| 411 |
}
|
| 412 |
if (!vdef(VDIST)) {
|
| 413 |
vval(VDIST) = "F";
|
| 414 |
vdef(VDIST)++;
|
| 415 |
}
|
| 416 |
/* append rendering options */
|
| 417 |
if (vdef(RENDER))
|
| 418 |
rtargc += wordstring(rtargv+rtargc, vval(RENDER));
|
| 419 |
|
| 420 |
if (gp == NULL) /* already initialized? */
|
| 421 |
return;
|
| 422 |
/* set grid parameters */
|
| 423 |
for (n = 0; n < vdef(SECTION); n++, gp++) {
|
| 424 |
gp->grid[0] = gp->grid[1] = gp->grid[2] = 0;
|
| 425 |
if (sscanf(nvalue(SECTION, n),
|
| 426 |
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %hd %hd %hd",
|
| 427 |
&gp->orig[0], &gp->orig[1], &gp->orig[2],
|
| 428 |
&gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2],
|
| 429 |
&gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2],
|
| 430 |
&gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2],
|
| 431 |
&gp->grid[0], &gp->grid[1], &gp->grid[2]) < 12)
|
| 432 |
badvalue(SECTION);
|
| 433 |
for (i = 0; i < 3; i++)
|
| 434 |
len[i] = VLEN(gp->xv[i]);
|
| 435 |
if (!vdef(GRID)) {
|
| 436 |
d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] +
|
| 437 |
len[2]*len[2] + 4*len[1]*len[2])
|
| 438 |
+ len[1]*len[1]*len[2]*(len[2] + 4*len[0])
|
| 439 |
+ 4*len[0]*len[1]*len[2]*len[2] );
|
| 440 |
d = sqrt(sqrt(d));
|
| 441 |
} else if ((d = vflt(GRID)) <= FTINY)
|
| 442 |
badvalue(GRID);
|
| 443 |
for (i = 0; i < 3; i++)
|
| 444 |
if (gp->grid[i] <= 0)
|
| 445 |
gp->grid[i] = len[i]/d + (1.-FTINY);
|
| 446 |
}
|
| 447 |
}
|
| 448 |
|
| 449 |
|
| 450 |
static void
|
| 451 |
creatholo( /* create a holodeck output file */
|
| 452 |
HDGRID *gp
|
| 453 |
)
|
| 454 |
{
|
| 455 |
extern char VersionID[];
|
| 456 |
int32 lastloc, nextloc;
|
| 457 |
int n;
|
| 458 |
int fd;
|
| 459 |
FILE *fp;
|
| 460 |
/* open & truncate file */
|
| 461 |
if ((fp = fopen(hdkfile, "w+")) == NULL) {
|
| 462 |
sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile);
|
| 463 |
error(SYSTEM, errmsg);
|
| 464 |
}
|
| 465 |
/* write information header */
|
| 466 |
newheader("RADIANCE", fp);
|
| 467 |
fprintf(fp, "SOFTWARE= %s\n", VersionID);
|
| 468 |
printvars(fp);
|
| 469 |
fputformat(HOLOFMT, fp);
|
| 470 |
fputc('\n', fp);
|
| 471 |
putw(HOLOMAGIC, fp); /* put magic number */
|
| 472 |
fd = dup(fileno(fp));
|
| 473 |
fclose(fp); /* flush and close stdio stream */
|
| 474 |
lastloc = lseek(fd, (off_t)0, SEEK_END);
|
| 475 |
for (n = vdef(SECTION); n--; gp++) { /* initialize each section */
|
| 476 |
nextloc = 0L;
|
| 477 |
write(fd, (char *)&nextloc, sizeof(nextloc));
|
| 478 |
hdinit(fd, gp); /* writes beam index */
|
| 479 |
if (!n)
|
| 480 |
break;
|
| 481 |
nextloc = hdfilen(fd); /* write section pointer */
|
| 482 |
if (lseek(fd, (off_t)lastloc, SEEK_SET) < 0)
|
| 483 |
error(SYSTEM,
|
| 484 |
"cannot seek on holodeck file in creatholo");
|
| 485 |
write(fd, (char *)&nextloc, sizeof(nextloc));
|
| 486 |
lseek(fd, (off_t)(lastloc=nextloc), SEEK_SET);
|
| 487 |
}
|
| 488 |
}
|
| 489 |
|
| 490 |
|
| 491 |
static int
|
| 492 |
headline( /* process information header line */
|
| 493 |
char *s,
|
| 494 |
void *p
|
| 495 |
)
|
| 496 |
{
|
| 497 |
extern char FMTSTR[];
|
| 498 |
register char *cp;
|
| 499 |
char fmt[32];
|
| 500 |
|
| 501 |
if (formatval(fmt, s)) {
|
| 502 |
if (strcmp(fmt, HOLOFMT)) {
|
| 503 |
sprintf(errmsg, "%s file \"%s\" has %s%s",
|
| 504 |
HOLOFMT, hdkfile, FMTSTR, fmt);
|
| 505 |
error(USER, errmsg);
|
| 506 |
}
|
| 507 |
return(0);
|
| 508 |
}
|
| 509 |
for (cp = s; *cp; cp++) /* take off any comments */
|
| 510 |
if (*cp == '#') {
|
| 511 |
*cp = '\0';
|
| 512 |
break;
|
| 513 |
}
|
| 514 |
setvariable(s, matchvar); /* don't flag errors */
|
| 515 |
return(0);
|
| 516 |
}
|
| 517 |
|
| 518 |
|
| 519 |
static void
|
| 520 |
loadholo(void) /* start loading a holodeck from fname */
|
| 521 |
{
|
| 522 |
FILE *fp;
|
| 523 |
int fd;
|
| 524 |
int n;
|
| 525 |
int32 nextloc;
|
| 526 |
|
| 527 |
if ((ncprocs > 0) & (force >= 0))
|
| 528 |
fp = fopen(hdkfile, "r+");
|
| 529 |
else
|
| 530 |
fp = NULL;
|
| 531 |
if (fp == NULL) {
|
| 532 |
if ((fp = fopen(hdkfile, "r")) == NULL) {
|
| 533 |
sprintf(errmsg, "cannot open \"%s\"", hdkfile);
|
| 534 |
error(SYSTEM, errmsg);
|
| 535 |
}
|
| 536 |
if (ncprocs > 0) {
|
| 537 |
sprintf(errmsg, "\"%s\" is read-only", hdkfile);
|
| 538 |
if (outdev == NULL)
|
| 539 |
error(USER, errmsg);
|
| 540 |
strcat(errmsg, "; new rays will be discarded");
|
| 541 |
error(WARNING, errmsg);
|
| 542 |
force = -1;
|
| 543 |
}
|
| 544 |
}
|
| 545 |
/* load variables from header */
|
| 546 |
getheader(fp, headline, NULL);
|
| 547 |
/* check magic number */
|
| 548 |
if (getw(fp) != HOLOMAGIC) {
|
| 549 |
sprintf(errmsg, "bad magic number in holodeck file \"%s\"",
|
| 550 |
hdkfile);
|
| 551 |
error(USER, errmsg);
|
| 552 |
}
|
| 553 |
nextloc = ftell(fp); /* get stdio position */
|
| 554 |
fd = dup(fileno(fp));
|
| 555 |
fclose(fp); /* done with stdio */
|
| 556 |
for (n = 0; nextloc > 0L; n++) { /* initialize each section */
|
| 557 |
lseek(fd, (off_t)nextloc, SEEK_SET);
|
| 558 |
read(fd, (char *)&nextloc, sizeof(nextloc));
|
| 559 |
hdinit(fd, NULL);
|
| 560 |
}
|
| 561 |
if (n != vdef(SECTION)) {
|
| 562 |
sprintf(errmsg, "number of sections does not match %s setting",
|
| 563 |
vnam(SECTION));
|
| 564 |
error(WARNING, errmsg);
|
| 565 |
}
|
| 566 |
}
|
| 567 |
|
| 568 |
|
| 569 |
extern void
|
| 570 |
done_packets( /* handle finished packets */
|
| 571 |
PACKET *pl
|
| 572 |
)
|
| 573 |
{
|
| 574 |
static int n2flush = 0;
|
| 575 |
register PACKET *p;
|
| 576 |
|
| 577 |
while (pl != NULL) {
|
| 578 |
p = pl; pl = p->next; p->next = NULL;
|
| 579 |
if (p->nr > 0) { /* add to holodeck */
|
| 580 |
memcpy( (void *)hdnewrays(hdlist[p->hd],p->bi,p->nr),
|
| 581 |
(void *)p->ra,
|
| 582 |
p->nr*sizeof(RAYVAL));
|
| 583 |
if (outdev != NULL) /* display it */
|
| 584 |
disp_packet((PACKHEAD *)p);
|
| 585 |
if (hdcachesize <= 0)
|
| 586 |
n2flush++;
|
| 587 |
nraysdone += p->nr;
|
| 588 |
npacksdone++;
|
| 589 |
p->nr = 0;
|
| 590 |
}
|
| 591 |
p->next = freepacks; /* push onto free list */
|
| 592 |
freepacks = p;
|
| 593 |
}
|
| 594 |
if (n2flush >= RTFLUSH) {
|
| 595 |
if (outdev != NULL)
|
| 596 |
hdsync(NULL, 1);
|
| 597 |
else
|
| 598 |
hdflush(NULL);
|
| 599 |
n2flush = 0;
|
| 600 |
}
|
| 601 |
}
|
| 602 |
|
| 603 |
|
| 604 |
static void
|
| 605 |
rootname( /* remove tail from end of fn */
|
| 606 |
register char *rn,
|
| 607 |
register char *fn
|
| 608 |
)
|
| 609 |
{
|
| 610 |
char *tp, *dp;
|
| 611 |
|
| 612 |
for (tp = NULL, dp = rn; (*rn = *fn++); rn++) {
|
| 613 |
if (*rn == '/')
|
| 614 |
dp = rn;
|
| 615 |
else if (*rn == '.')
|
| 616 |
tp = rn;
|
| 617 |
}
|
| 618 |
if (tp != NULL && tp > dp)
|
| 619 |
*tp = '\0';
|
| 620 |
}
|
| 621 |
|
| 622 |
|
| 623 |
static void
|
| 624 |
badvalue( /* report bad variable value and exit */
|
| 625 |
int vc
|
| 626 |
)
|
| 627 |
{
|
| 628 |
sprintf(errmsg, "bad value for variable '%s'", vnam(vc));
|
| 629 |
error(USER, errmsg);
|
| 630 |
}
|
| 631 |
|
| 632 |
|
| 633 |
void
|
| 634 |
eputs(s) /* put error message to stderr */
|
| 635 |
register char *s;
|
| 636 |
{
|
| 637 |
static int midline = 0;
|
| 638 |
|
| 639 |
if (!*s)
|
| 640 |
return;
|
| 641 |
if (!midline++) { /* prepend line with program name */
|
| 642 |
fputs(progname, stderr);
|
| 643 |
fputs(": ", stderr);
|
| 644 |
}
|
| 645 |
fputs(s, stderr);
|
| 646 |
if (s[strlen(s)-1] == '\n') {
|
| 647 |
fflush(stderr);
|
| 648 |
midline = 0;
|
| 649 |
}
|
| 650 |
}
|
| 651 |
|
| 652 |
|
| 653 |
void
|
| 654 |
quit(ec) /* exit program gracefully */
|
| 655 |
int ec;
|
| 656 |
{
|
| 657 |
int status = 0;
|
| 658 |
|
| 659 |
if (hdlist[0] != NULL) { /* close holodeck */
|
| 660 |
if (nprocs > 0)
|
| 661 |
status = done_rtrace(); /* calls hdsync() */
|
| 662 |
if ((ncprocs > 0) & (force >= 0) && vdef(REPORT)) {
|
| 663 |
off_t fsiz, fuse;
|
| 664 |
fsiz = hdfilen(hdlist[0]->fd);
|
| 665 |
fuse = hdfiluse(hdlist[0]->fd);
|
| 666 |
fprintf(stderr,
|
| 667 |
"%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n",
|
| 668 |
hdkfile, fsiz/(1024.*1024.),
|
| 669 |
100.*(fsiz-fuse)/fsiz);
|
| 670 |
}
|
| 671 |
}
|
| 672 |
if (orig_mode >= 0) /* reset holodeck access mode */
|
| 673 |
fchmod(hdlist[0]->fd, orig_mode);
|
| 674 |
if (outdev != NULL) /* close display */
|
| 675 |
disp_close();
|
| 676 |
exit(ec ? ec : status); /* exit */
|
| 677 |
}
|
