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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* Copyright (c) 1999 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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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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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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{ |
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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(120); /* allow 2 minutes 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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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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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 MAXQTIME |
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if (n2flush > 300/MAXQTIME*totqlen) { |
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#else |
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if (n2flush > 50*totqlen) { |
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#endif |
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if (outdev == NULL) |
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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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hdsync(NULL, 1); /* sync holodeck file */ |
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hdflush(NULL); |
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n2flush = 0; |
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} |
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} |
