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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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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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#include <sys/uio.h> |
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#ifndef HDSUF |
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#define HDSUF ".hdisp" |
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#define HDSUF ".hdi" |
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#endif |
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#ifndef FNONBLK |
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#define FNONBLK O_NONBLOCK |
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#endif |
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|
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static int inp_flags; |
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static int dpd[3]; |
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static FILE *dpout; |
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if (readinp) |
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close(atoi(fd0)); |
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close(atoi(fd1)); |
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/* check if outside */ |
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if (vdef(OBSTRUCTIONS) && vbool(OBSTRUCTIONS)) |
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disp_result(DS_OUTSECT, 0, NULL); |
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/* send eye separation if specified */ |
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if (vdef(EYESEP)) { |
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char fbuf[32]; |
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sprintf(fbuf, "%.9e", vflt(EYESEP)); |
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disp_result(DS_EYESEP, strlen(fbuf)+1, fbuf); |
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} |
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/* write out hologram grids */ |
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for (i = 0; hdlist[i] != NULL; i++) |
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disp_result(DS_ADDHOLO, sizeof(HDGRID), (char *)hdlist[i]); |
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return(2); /* acceptable failure */ |
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} |
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if (msg.nbytes) { /* get the message body */ |
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if (msg.nbytes < 0) |
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error(INTERNAL, "anti-message from display process"); |
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buf = (char *)malloc(msg.nbytes); |
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if (buf == NULL) |
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error(SYSTEM, "out of memory in disp_check"); |
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if (fcntl(dpd[0], F_SETFL, inp_flags=0) < 0) |
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if (inp_flags != 0 && fcntl(dpd[0], F_SETFL, inp_flags=0) < 0) |
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goto fcntlerr; |
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if (readbuf(dpd[0], buf, msg.nbytes) != msg.nbytes) |
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goto readerr; |
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case DR_NEWSET: /* new calculation set */ |
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if (msg.nbytes % sizeof(PACKHEAD)) |
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error(INTERNAL, "bad DR_NEWSET from display process"); |
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disp_result(DS_STARTIMM, 0, NULL); |
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if (msg.nbytes) |
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disp_result(DS_STARTIMM, 0, NULL); |
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bundle_set(BS_NEW, (PACKHEAD *)buf, msg.nbytes/sizeof(PACKHEAD)); |
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disp_result(DS_ENDIMM, 0, NULL); |
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disp_flush(); |
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if (msg.nbytes) { |
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disp_result(DS_ENDIMM, 0, NULL); |
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disp_flush(); |
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} |
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break; |
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case DR_ADDSET: /* add to calculation set */ |
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if (!msg.nbytes) |
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break; |
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if (msg.nbytes % sizeof(PACKHEAD)) |
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error(INTERNAL, "bad DR_ADDSET from display process"); |
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disp_result(DS_STARTIMM, 0, NULL); |
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bundle_set(BS_ADD, (PACKHEAD *)buf, msg.nbytes/sizeof(PACKHEAD)); |
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disp_result(DS_ENDIMM, 0, NULL); |
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disp_check(0); /* hack -- delete usu. follows add */ |
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disp_flush(); |
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break; |
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case DR_ADJSET: /* adjust calculation set members */ |
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if (!msg.nbytes) |
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break; |
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if (msg.nbytes % sizeof(PACKHEAD)) |
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error(INTERNAL, "bad DR_ADJSET from display process"); |
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disp_result(DS_STARTIMM, 0, NULL); |
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disp_flush(); |
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break; |
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case DR_DELSET: /* delete from calculation set */ |
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if (!msg.nbytes) |
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break; |
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if (msg.nbytes % sizeof(PACKHEAD)) |
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error(INTERNAL, "bad DR_DELSET from display process"); |
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bundle_set(BS_DEL, (PACKHEAD *)buf, msg.nbytes/sizeof(PACKHEAD)); |
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case DR_KILL: /* kill computation process(es) */ |
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if (msg.nbytes) |
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error(INTERNAL, "bad DR_KILL from display process"); |
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if (nprocs > 0) { |
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done_packets(flush_queue()); |
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if (end_rtrace()) |
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error(WARNING, "bad status returned by rtrace"); |
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} else |
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if (nprocs > 0) |
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done_rtrace(); |
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else |
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error(WARNING, "no rtrace process to kill"); |
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break; |
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case DR_RESTART: /* restart computation process(es) */ |
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if (msg.nbytes) |
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error(INTERNAL, "bad DR_RESTART from display process"); |
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if (ncprocs > nprocs) { |
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checkrad(); |
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if (start_rtrace() < 1) |
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error(WARNING, "cannot restart rtrace"); |
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} else if (nprocs > 0) |
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if (ncprocs > nprocs) |
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new_rtrace(); |
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else if (nprocs > 0) |
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error(WARNING, "rtrace already runnning"); |
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else |
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error(WARNING, "holodeck not open for writing"); |
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char *p; |
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{ |
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MSGHEAD msg; |
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/* consistency checks */ |
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#ifdef DEBUG |
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if (nbytes < 0 || nbytes > 0 & p == NULL) |
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error(CONSISTENCY, "bad buffer handed to disp_result"); |
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#endif |
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if (dpout == NULL) |
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return; |
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msg.type = type; |
