| 23 |  |  | 
| 24 |  | static char     pfile[] = TEMPLATE;             /* persist file name */ | 
| 25 |  |  | 
| 26 | < | static SUBPROC  rtpd[MAXPROC];          /* process descriptors */ | 
| 26 | > | static SUBPROC  rtpd[MAXPROC];                  /* process descriptors */ | 
| 27 |  | static float    *rtbuf = NULL;                  /* allocated i/o buffer */ | 
| 28 | < | static int      maxqlen = 0;                    /* maximum packets per queue */ | 
| 28 | > | static int      maxqlen;                        /* maximum packets per queue */ | 
| 29 |  |  | 
| 30 |  | static PACKET   *pqueue[MAXPROC];               /* packet queues */ | 
| 31 |  | static int      pqlen[MAXPROC];                 /* packet queue lengths */ | 
| 37 |  | static void killpersist(void); | 
| 38 |  |  | 
| 39 |  |  | 
| 40 | < | extern int | 
| 40 | > | int | 
| 41 |  | start_rtrace(void)                      /* start rtrace process */ | 
| 42 |  | { | 
| 43 |  | static char     buf1[8]; | 
| 59 |  | rtargv[rtargc++] = "-I-"; | 
| 60 |  | rtargv[rtargc++] = "-h-"; | 
| 61 |  | rtargv[rtargc++] = "-ld-"; | 
| 62 | + | rtargv[rtargc++] = "-pRGB"; | 
| 63 |  | sprintf(buf1, "%d", RPACKSIZ); | 
| 64 |  | rtargv[rtargc++] = "-x"; rtargv[rtargc++] = buf1; | 
| 65 |  | rtargv[rtargc++] = "-y"; rtargv[rtargc++] = "0"; | 
| 79 |  | psiz = open_process(&rtpd[nprocs], rtargv); | 
| 80 |  | if (psiz <= 0) | 
| 81 |  | error(SYSTEM, "cannot start rtrace process"); | 
| 82 | < | n = psiz/(RPACKSIZ*6*sizeof(float)); | 
| 83 | < | if (maxqlen == 0) { | 
| 84 | < | if (!(maxqlen = n)) | 
| 84 | < | error(INTERNAL, | 
| 85 | < | "bad pipe buffer size assumption"); | 
| 82 | > | n = psiz/(RPACKSIZ*6*sizeof(float)) + 1; | 
| 83 | > | if (!maxqlen) { | 
| 84 | > | maxqlen = n; | 
| 85 |  | sleep(2); | 
| 86 |  | } else if (n != maxqlen) | 
| 87 |  | error(INTERNAL, "varying pipe buffer size!"); | 
| 98 |  | bestout(void)                   /* get best process to process packet */ | 
| 99 |  | { | 
| 100 |  | int     cnt; | 
| 101 | < | register int    pn, i; | 
| 101 | > | int     pn, i; | 
| 102 |  |  | 
| 103 |  | pn = 0;                 /* find shortest queue */ | 
| 104 |  | for (i = 1; i < nprocs; i++) | 
| 112 |  | if (pqlen[i] == pqlen[pn]) | 
| 113 |  | cnt++; | 
| 114 |  | /* break ties fairly */ | 
| 115 | < | if ((cnt = random() % cnt)) | 
| 115 | > | if ((cnt = irandom(cnt))) | 
| 116 |  | for (i = pn; i < nprocs; i++) | 
| 117 |  | if (pqlen[i] == pqlen[pn] && !cnt--) | 
| 118 |  | return(i); | 
| 123 |  | static int | 
| 124 |  | slots_avail(void)                       /* count packet slots available */ | 
| 125 |  | { | 
| 126 | < | register int    nslots = 0; | 
| 127 | < | register int    i; | 
| 126 | > | int     nslots = 0; | 
| 127 | > | int     i; | 
| 128 |  |  | 
| 129 |  | for (i = nprocs; i--; ) | 
| 130 |  | nslots += maxqlen - pqlen[i]; | 
| 134 |  |  | 
| 135 |  | static void | 
| 136 |  | queue_packet(                   /* queue up a beam packet */ | 
| 137 | < | register PACKET *p | 
| 137 | > | PACKET  *p | 
| 138 |  | ) | 
| 139 |  | { | 
| 140 |  | int     pn, n; | 
| 145 |  | packrays(rtbuf, p); | 
| 146 |  | if ((n = p->nr) < RPACKSIZ)     /* add flush block? */ | 
| 147 |  | memset((char *)(rtbuf+6*n++), '\0', 6*sizeof(float)); | 
| 148 | < | if (writebuf(rtpd[pn].w, (char *)rtbuf, 6*sizeof(float)*n) < 0) | 
| 148 | > | if (writebuf(rtpd[pn].w, rtbuf, 6*sizeof(float)*n) < 0) | 
| 149 |  | error(SYSTEM, "write error in queue_packet"); | 
| 150 |  | p->next = NULL; | 
| 151 |  | if (!pqlen[pn]++)       /* add it to the end of the queue */ | 
| 152 |  | pqueue[pn] = p; | 
| 153 |  | else { | 
| 154 | < | register PACKET *rpl = pqueue[pn]; | 
| 154 | > | PACKET  *rpl = pqueue[pn]; | 
| 155 |  | while (rpl->next != NULL) | 
| 156 |  | rpl = rpl->next; | 
| 157 |  | rpl->next = p; | 
| 167 |  | static struct timeval   tpoll;  /* zero timeval struct */ | 
| 168 |  | fd_set  readset, errset; | 
| 169 |  | PACKET  *pldone = NULL, *plend; | 
| 170 | < | register PACKET *p; | 
| 170 | > | PACKET  *p; | 
| 171 |  | int     n, nr; | 
| 172 | < | register int    pn; | 
| 172 | > | int     pn; | 
| 173 |  | float   *bp; | 
| 174 |  | /* prepare select call */ | 
| 175 |  | FD_ZERO(&readset); FD_ZERO(&errset); n = 0; | 
| 239 |  | } | 
| 240 |  |  | 
| 241 |  |  | 
| 242 | < | extern PACKET * | 
| 242 | > | PACKET * | 
| 243 |  | do_packets(                     /* queue a packet list, return finished */ | 
| 244 | < | register PACKET *pl | 
| 244 | > | PACKET  *pl | 
| 245 |  | ) | 
| 246 |  | { | 
| 247 | < | register PACKET *p; | 
| 247 | > | PACKET  *p; | 
| 248 |  | /* consistency check */ | 
| 249 |  | if (nprocs < 1) | 
| 250 |  | error(CONSISTENCY, "do_packets called with no active process"); | 
| 257 |  | } | 
| 258 |  |  | 
| 259 |  |  | 
| 260 | < | extern PACKET * | 
| 260 | > | PACKET * | 
| 261 |  | flush_queue(void)                       /* empty all rtrace queues */ | 
| 262 |  | { | 
| 263 |  | PACKET  *rpdone = NULL; | 
| 264 | < | register PACKET *rpl = NULL; | 
| 264 | > | PACKET  *rpl = NULL; | 
| 265 |  | float   *bp; | 
| 266 | < | register PACKET *p; | 
| 266 | > | PACKET  *p; | 
| 267 |  | int     i, n, nr; | 
| 268 |  |  | 
| 269 |  | for (i = 0; i < nprocs; i++) | 
| 280 |  | if (rpl->nr < RPACKSIZ) | 
| 281 |  | nr++;           /* add flush block */ | 
| 282 |  | } | 
| 283 | < | n = readbuf(rtpd[i].r, (char *)rtbuf, | 
| 285 | < | 4*sizeof(float)*nr); | 
| 283 | > | n = readbuf(rtpd[i].r, rtbuf, 4*sizeof(float)*nr); | 
| 284 |  | if (n < 0) | 
| 285 |  | error(SYSTEM, "read failure in flush_queue"); | 
| 286 |  | bp = rtbuf;                     /* process packets */ | 
| 315 |  | } | 
| 316 |  |  | 
| 317 |  |  | 
| 318 | < | extern int | 
| 318 | > | int | 
| 319 |  | end_rtrace(void)                        /* close rtrace process(es) */ | 
| 320 |  | { | 
| 321 |  | int     status = 0, rv; | 
| 322 |  |  | 
| 323 |  | if (nprocs > 1) | 
| 324 |  | killpersist(); | 
| 325 | < | while (nprocs > 0) { | 
| 326 | < | rv = close_process(&rtpd[--nprocs]); | 
| 329 | < | if (rv > 0) | 
| 330 | < | status = rv; | 
| 331 | < | } | 
| 325 | > | status = close_processes(rtpd, nprocs); | 
| 326 | > | nprocs = 0; | 
| 327 |  | free((void *)rtbuf); | 
| 328 |  | rtbuf = NULL; | 
| 329 |  | maxqlen = 0; |