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#include "rholo.h" |
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#include "paths.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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|
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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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time_t endtime; /* time we should end by */ |
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time_t reporttime; /* time for next report */ |
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|
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long maxdisk; /* maximum file space (bytes) */ |
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|
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int rtargc = 1; /* rtrace command */ |
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char *rtargv[128] = {"rtrace", NULL}; |
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|
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int orig_mode = -1; /* original file mode (-1 if unchanged) */ |
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|
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long nraysdone = 0L; /* number of rays done */ |
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long npacksdone = 0L; /* number of packets done */ |
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|
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PACKET *freepacks; /* available packets */ |
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|
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char *sigerr[NSIG]; /* signal error messages */ |
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|
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extern time_t time(); |
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|
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|
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} |
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|
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|
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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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|
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if (gotsig++) /* two signals and we're gone! */ |
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_exit(signo); |
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|
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alarm(30); /* allow 30 seconds to clean up */ |
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signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
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eputs("signal - "); |
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eputs(sigerr[signo]); |
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eputs("\n"); |
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quit(3); |
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} |
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|
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|
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sigdie(signo, msg) /* set fatal signal */ |
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int signo; |
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char *msg; |
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{ |
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if (signal(signo, onsig) == SIG_IGN) |
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signal(signo, SIG_IGN); |
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sigerr[signo] = msg; |
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} |
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|
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|
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int |
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resfmode(fd, mod) /* restrict open file access mode */ |
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int fd, mod; |
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{ |
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struct stat stbuf; |
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/* get original mode */ |
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if (fstat(fd, &stbuf) < 0) |
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error(SYSTEM, "cannot stat open holodeck file"); |
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mod &= stbuf.st_mode; /* always more restrictive */ |
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if (mod == stbuf.st_mode) |
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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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return(-1); |
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} |
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return(stbuf.st_mode); /* return original mode */ |
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} |
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|
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|
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initrholo() /* get our holodeck running */ |
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{ |
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extern int global_packet(); |
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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 = 0; |
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else |
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maxdisk = 1024.*1024.*vflt(DISKSPACE); |
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/* record end time */ |
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if (!vdef(TIME) || vflt(TIME) <= FTINY) |
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endtime = 0; |
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freepacks[i].next = &freepacks[i+1]; |
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} |
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} |
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/* set up signal handling */ |
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sigdie(SIGINT, "Interrupt"); |
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sigdie(SIGHUP, "Hangup"); |
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sigdie(SIGTERM, "Terminate"); |
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sigdie(SIGPIPE, "Broken pipe"); |
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sigdie(SIGALRM, "Alarm clock"); |
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#ifdef SIGXCPU |
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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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return; |
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memerr: |
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error(SYSTEM, "out of memory in initrholo"); |
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if (ncprocs <= 0) |
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return(1); |
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/* check file size */ |
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if ((l = 1024.*1024.*vflt(DISKSPACE)) > 0 && |
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hdfiluse(hdlist[0]->fd, 0) + hdmemuse(0) >= l) |
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if (maxdisk > 0 && hdfilen(hdlist[0]->fd) >= maxdisk) { |
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error(WARNING, "file limit exceeded"); |
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return(0); |
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} |
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/* check time */ |
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if (endtime > 0 || reporttime > 0) |
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t = time(NULL); |
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if (endtime > 0 && t >= endtime) |
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if (endtime > 0 && t >= endtime) { |
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error(WARNING, "time limit exceeded"); |
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return(0); |
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} |
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if (reporttime > 0 && t >= reporttime) |
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report(t); |
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/* get packets to process */ |
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sprintf(vval(OCTREE), "%s.oct", froot); |
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vdef(OCTREE)++; |
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} |
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if (!vdef(DISKSPACE)) { |
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sprintf(errmsg, |
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"no %s setting, assuming 100 Mbytes available", |
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vnam(DISKSPACE)); |
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error(WARNING, errmsg); |
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vval(DISKSPACE) = "100"; |
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vdef(DISKSPACE)++; |
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} |
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if (!vdef(OBSTRUCTIONS)) { |
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vval(OBSTRUCTIONS) = "T"; |
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vdef(OBSTRUCTIONS)++; |
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creatholo(gp) /* create a holodeck output file */ |
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HDGRID *gp; |
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{ |
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extern char VersionID[]; |
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long endloc = 0; |
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int fd; |
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FILE *fp; |
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/* open & truncate file */ |
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if ((fp = fopen(hdkfile, "w+")) == NULL) { |
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} |
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/* write information header */ |
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newheader("RADIANCE", fp); |
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fprintf(fp, "SOFTWARE= %s\n", VersionID); |
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printvars(fp); |
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fputformat(HOLOFMT, fp); |
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fputc('\n', fp); |
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putw(HOLOMAGIC, fp); /* put magic number & terminus */ |
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fwrite(&endloc, sizeof(long), 1, fp); |
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fflush(fp); /* flush buffer */ |
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hdinit(fileno(fp), gp); /* allocate and initialize index */ |
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/* we're dropping fp here.... */ |
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fd = dup(fileno(fp)); |
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fclose(fp); /* flush and close stdio stream */ |
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hdinit(fd, gp); /* allocate and initialize index */ |
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} |
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|
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|
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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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long endloc; |
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int fd; |
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long fpos; |
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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 open \"%s\" for %s", hdkfile, |
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hdkfile); |
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error(USER, errmsg); |
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} |
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fread(&endloc, sizeof(long), 1, fp); |
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if (endloc != 0) |
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fread(&fpos, sizeof(long), 1, fp); |
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if (fpos != 0) |
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error(WARNING, "ignoring multiple sections in holodeck file"); |
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fseek(fp, 0L, 1); /* align system file pointer */ |
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hdinit(fileno(fp), NULL); /* allocate and load index */ |
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/* we're dropping fp here.... */ |
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fpos = ftell(fp); /* get stdio position */ |
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fd = dup(fileno(fp)); |
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fclose(fp); /* done with stdio */ |
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lseek(fd, fpos, 0); /* align system file pointer */ |
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hdinit(fd, NULL); /* allocate and load index */ |
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} |
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|
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|
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done_packets(pl) /* handle finished packets */ |
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PACKET *pl; |
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{ |
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static int nunflushed = 0; |
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static int n2flush = 0; |
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register PACKET *p; |
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|
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while (pl != NULL) { |
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(char *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
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p->nr*sizeof(RAYVAL)); |
475 |
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if (outdev != NULL) /* display it */ |
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disp_packet(p); |
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else |
478 |
< |
nunflushed += p->nr; |
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> |
disp_packet((PACKHEAD *)p); |
477 |
> |
if (hdcachesize <= 0) /* manual flushing */ |
478 |
> |
n2flush += p->nr; |
479 |
> |
nraysdone += p->nr; |
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> |
npacksdone++; |
481 |
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} |
406 |
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nraysdone += p->nr; |
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npacksdone++; |
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p->nr = 0; /* push onto free list */ |
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p->next = freepacks; |
484 |
|
freepacks = p; |
485 |
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} |
486 |
< |
if (nunflushed >= 256*RPACKSIZ) { |
486 |
> |
if (n2flush > 512*RPACKSIZ*ncprocs) { |
487 |
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hdflush(NULL); /* flush holodeck buffers */ |
488 |
< |
nunflushed = 0; |
488 |
> |
n2flush = 0; |
489 |
|
} |
490 |
|
} |
491 |
|
|
493 |
|
getradfile(rfargs) /* run rad and get needed variables */ |
494 |
|
char *rfargs; |
495 |
|
{ |
496 |
< |
static short mvar[] = {VIEW,OCTREE,EXPOSURE,-1}; |
496 |
> |
static short mvar[] = {OCTREE,EXPOSURE,-1}; |
497 |
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static char tf1[] = TEMPLATE; |
498 |
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char tf2[64]; |
499 |
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char combuf[256]; |
592 |
|
{ |
593 |
|
int status = 0; |
594 |
|
|
521 |
– |
if (outdev != NULL) /* close display */ |
522 |
– |
disp_close(); |
595 |
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if (hdlist[0] != NULL) { /* flush holodeck */ |
596 |
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if (ncprocs > 0) { |
597 |
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done_packets(flush_queue()); |
600 |
|
if (vdef(REPORT)) { |
601 |
|
long fsiz, fuse; |
602 |
|
report(0); |
603 |
< |
fsiz = lseek(hdlist[0]->fd, 0L, 2); |
603 |
> |
fsiz = hdfilen(hdlist[0]->fd); |
604 |
|
fuse = hdfiluse(hdlist[0]->fd, 1); |
605 |
|
fprintf(stderr, |
606 |
|
"%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n", |
610 |
|
} else |
611 |
|
hdflush(NULL); |
612 |
|
} |
613 |
+ |
if (orig_mode >= 0) /* reset holodeck access mode */ |
614 |
+ |
fchmod(hdlist[0]->fd, orig_mode); |
615 |
+ |
if (outdev != NULL) /* close display */ |
616 |
+ |
disp_close(); |
617 |
|
exit(ec ? ec : status); /* exit */ |
618 |
|
} |