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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Radiance holodeck generation controller |
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*/ |
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#include "rholo.h" |
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#include "random.h" |
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#include <signal.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <string.h> |
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#include "rholo.h" |
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#include "random.h" |
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|
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#ifndef FRAGWARN |
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#define FRAGWARN 20 /* fragmentation for warning (%) */ |
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#endif |
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#ifndef MAXQTIME |
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#define MAXQTIME 5 /* target maximum seconds in queue */ |
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#endif |
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/* manual cache flushing frequency */ |
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#ifndef RTFLUSH |
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#if MAXQTIME |
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#define RTFLUSH (300/MAXQTIME*totqlen) /* <= 5 minutes */ |
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#else |
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#define RTFLUSH (50*totqlen) /* just guess */ |
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#endif |
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#endif |
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/* the following must be consistent with rholo.h */ |
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int NVARS = NRHVARS; /* total number of variables */ |
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char *hdkfile; /* holodeck file name */ |
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char froot[256]; /* root file name */ |
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int nowarn = 0; /* turn warnings off? */ |
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int ncprocs = 0; /* desired number of compute processes */ |
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char *outdev = NULL; /* output device name */ |
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int readinp = 0; /* read commands from stdin */ |
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int force = 0; /* allow overwrite of holodeck */ |
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int force = 0; /* allow overwrite of holodeck (-1 == read-only) */ |
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time_t starttime; /* time we got started */ |
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time_t endtime; /* time we should end by */ |
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time_t reporttime; /* time for next report */ |
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long maxdisk; /* maximum file space (bytes) */ |
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off_t maxdisk; /* maximum file space (bytes) */ |
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int rtargc = 1; /* rtrace command */ |
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char *rtargv[128] = {"rtrace", NULL}; |
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long npacksdone = 0L; /* number of packets done */ |
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PACKET *freepacks; /* available packets */ |
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int totqlen; /* maximum queue length when full */ |
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int totqlen; /* maximum queue length (number of packets) */ |
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char *sigerr[NSIG]; /* signal error messages */ |
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extern int nowarn; /* turn warnings off? */ |
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|
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extern time_t time(); |
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nowarn++; |
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break; |
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case 'f': /* force overwrite */ |
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force++; |
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force = 1; |
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break; |
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case 'r': /* read-only mode */ |
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force = -1; |
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break; |
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case 'i': /* read input from stdin */ |
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readinp++; |
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break; |
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HDGRID hdg[HDMAX]; |
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/* set defaults */ |
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setdefaults(hdg); |
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/* check read-only */ |
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if (force < 0) |
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error(USER, "cannot create read-only holodeck"); |
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/* holodeck exists? */ |
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if (!force && access(hdkfile, R_OK|W_OK) == 0) |
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error(USER, |
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quit(0); |
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userr: |
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fprintf(stderr, |
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"Usage: %s [-n nprocs][-o disp][-w][-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", |
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"Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", |
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progname); |
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quit(1); |
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} |
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void |
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onsig(signo) /* fatal signal */ |
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int signo; |
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{ |
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static int gotsig = 0; |
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if (gotsig++) /* two signals and we're gone! */ |
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if (gotsig > 1) /* we're going as fast as we can! */ |
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return; |
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if (gotsig++) { /* two signals and we split */ |
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hdsync(NULL, 0); /* don't leave w/o saying goodbye */ |
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_exit(signo); |
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alarm(60); /* allow 60 seconds to clean up */ |
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signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
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} |
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alarm(300); /* allow 5 minutes to clean up */ |
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eputs("signal - "); |
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eputs(sigerr[signo]); |
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eputs("\n"); |
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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 = 0; |
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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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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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sigdie(SIGXCPU, "CPU limit exceeded"); |
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sigdie(SIGXFSZ, "File size exceeded"); |
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#endif |
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/* protect holodeck file */ |
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orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); |
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/* protect holodeck file */ |
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orig_mode = resfmode(hdlist[0]->fd, ncprocs>0&force>=0 ? 0 : 0444); |
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return; |
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memerr: |
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error(SYSTEM, "out of memory in initrholo"); |
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rholo() /* holodeck main loop */ |
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{ |
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static long nextfragwarn = 100*(1L<<20); |
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static int idle = 0; |
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PACKET *pl = NULL, *plend; |
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off_t fsiz; |
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int pksiz; |
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register PACKET *p; |
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time_t t; |
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return(1); |
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} else if (idle) |
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return(0); /* all done */ |
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/* check file size */ |
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if (maxdisk > 0 && hdfilen(hdlist[0]->fd) >= maxdisk) { |
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fsiz = hdfilen(hdlist[0]->fd); /* check file size */ |
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if (maxdisk > 0 && fsiz >= maxdisk) { |
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error(WARNING, "file limit exceeded"); |
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done_rtrace(); |
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return(1); /* comes back */ |
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} |
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#if FRAGWARN |
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if (fsiz >= nextfragwarn && |
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(fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { |
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sprintf(errmsg, "holodeck file fragmentation is %.0f%%", |
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100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); |
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error(WARNING, errmsg); |
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nextfragwarn = fsiz + (fsiz>>2); /* decent interval */ |
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} |
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#endif |
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t = time(NULL); /* check time */ |
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if (endtime > 0 && t >= endtime) { |
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error(WARNING, "time limit exceeded"); |
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if (reporttime > 0 && t >= reporttime) |
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report(t); |
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/* figure out good packet size */ |
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pksiz = RPACKSIZ; |
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#if MAXQTIME |
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pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); |
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if (pksiz < 1) |
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pksiz = 1; |
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else if (pksiz > RPACKSIZ) |
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if (!chunkycmp) { |
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pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); |
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if (pksiz < 1) pksiz = 1; |
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else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ; |
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} |
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#endif |
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pksiz = RPACKSIZ; |
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idle = 0; /* get packets to process */ |
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while (freepacks != NULL) { |
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p = freepacks; freepacks = p->next; p->next = NULL; |
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for (i = 0; i < 3; i++) |
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len[i] = VLEN(gp->xv[i]); |
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if (!vdef(GRID)) { |
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d = 2/5e5*( len[0]*len[0]*(len[1]*len[1] + |
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d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] + |
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len[2]*len[2] + 4*len[1]*len[2]) |
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+ len[1]*len[1]*len[2]*(len[2] + 4*len[0]) |
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+ 4*len[0]*len[1]*len[2]*len[2] ); |
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HDGRID *gp; |
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{ |
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extern char VersionID[]; |
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int4 lastloc, nextloc; |
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int32 lastloc, nextloc; |
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int n; |
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int fd; |
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FILE *fp; |
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putw(HOLOMAGIC, fp); /* put magic number */ |
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fd = dup(fileno(fp)); |
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fclose(fp); /* flush and close stdio stream */ |
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lastloc = lseek(fd, 0L, 2); |
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lastloc = lseek(fd, (off_t)0, 2); |
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for (n = vdef(SECTION); n--; gp++) { /* initialize each section */ |
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nextloc = 0L; |
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write(fd, (char *)&nextloc, sizeof(nextloc)); |
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if (!n) |
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break; |
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nextloc = hdfilen(fd); /* write section pointer */ |
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if (lseek(fd, (long)lastloc, 0) < 0) |
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if (lseek(fd, (off_t)lastloc, 0) < 0) |
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error(SYSTEM, |
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"cannot seek on holodeck file in creatholo"); |
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write(fd, (char *)&nextloc, sizeof(nextloc)); |
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lseek(fd, (long)(lastloc=nextloc), 0); |
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lseek(fd, (off_t)(lastloc=nextloc), 0); |
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} |
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} |
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int |
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headline(s) /* process information header line */ |
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char *s; |
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{ |
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HOLOFMT, hdkfile, FMTSTR, fmt); |
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error(USER, errmsg); |
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} |
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return; |
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return(0); |
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} |
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for (cp = s; *cp; cp++) /* take off any comments */ |
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if (*cp == '#') { |
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break; |
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} |
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setvariable(s, matchvar); /* don't flag errors */ |
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return(0); |
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} |
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loadholo() /* start loading a holodeck from fname */ |
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{ |
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extern long ftell(); |
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FILE *fp; |
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int fd; |
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int n; |
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int4 nextloc; |
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/* open holodeck file */ |
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if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) { |
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sprintf(errmsg, "cannot %s \"%s\"", |
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ncprocs>0 ? "append" : "read", hdkfile); |
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error(SYSTEM, errmsg); |
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int32 nextloc; |
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|
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if (ncprocs > 0 & force >= 0) |
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fp = fopen(hdkfile, "r+"); |
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else |
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fp = NULL; |
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if (fp == NULL) { |
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if ((fp = fopen(hdkfile, "r")) == NULL) { |
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sprintf(errmsg, "cannot open \"%s\"", hdkfile); |
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error(SYSTEM, errmsg); |
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} |
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if (ncprocs > 0) { |
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sprintf(errmsg, |
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"\"%s\" opened read-only; new rays will be discarded", |
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hdkfile); |
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error(WARNING, errmsg); |
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force = -1; |
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} |
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} |
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/* load variables from header */ |
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getheader(fp, headline, NULL); |
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fd = dup(fileno(fp)); |
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fclose(fp); /* done with stdio */ |
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for (n = 0; nextloc > 0L; n++) { /* initialize each section */ |
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lseek(fd, (long)nextloc, 0); |
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lseek(fd, (off_t)nextloc, 0); |
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read(fd, (char *)&nextloc, sizeof(nextloc)); |
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hdinit(fd, NULL); |
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} |
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while (pl != NULL) { |
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p = pl; pl = p->next; p->next = NULL; |
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if (p->nr > 0) { /* add to holodeck */ |
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bcopy((char *)p->ra, |
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(char *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
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memcpy( (void *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
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(void *)p->ra, |
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p->nr*sizeof(RAYVAL)); |
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if (outdev != NULL) /* display it */ |
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disp_packet((PACKHEAD *)p); |
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if (hdcachesize <= 0) /* manual flushing */ |
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if (hdcachesize <= 0) |
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n2flush++; |
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nraysdone += p->nr; |
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npacksdone++; |
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p->next = freepacks; /* push onto free list */ |
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freepacks = p; |
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} |
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if (n2flush > 300/MAXQTIME*totqlen) { |
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hdflush(NULL); /* flush holodeck buffers */ |
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if (n2flush >= RTFLUSH) { |
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if (outdev != NULL) |
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hdsync(NULL, 1); |
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else |
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hdflush(NULL); |
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n2flush = 0; |
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} |
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} |
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} |
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void |
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eputs(s) /* put error message to stderr */ |
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register char *s; |
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{ |
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} |
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wputs(s) /* put warning string to stderr */ |
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char *s; |
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{ |
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if (!nowarn) |
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eputs(s); |
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} |
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void |
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quit(ec) /* exit program gracefully */ |
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int ec; |
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{ |
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if (hdlist[0] != NULL) { /* close holodeck */ |
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if (nprocs > 0) |
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status = done_rtrace(); /* calls hdsync() */ |
612 |
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if (ncprocs > 0 && vdef(REPORT)) { |
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long fsiz, fuse; |
612 |
> |
if (ncprocs > 0 & force >= 0 && vdef(REPORT)) { |
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off_t fsiz, fuse; |
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fsiz = hdfilen(hdlist[0]->fd); |
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fuse = hdfiluse(hdlist[0]->fd, 1); |
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fprintf(stderr, |