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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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|
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static int inp_flags; |
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disp_open(dname) /* open the named display driver */ |
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char *dname; |
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{ |
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< |
char dpath[128], *com[3]; |
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> |
char dpath[128], fd0[8], fd1[8], *cmd[5]; |
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int i; |
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< |
|
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> |
/* get full display program name */ |
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#ifdef DEVPATH |
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sprintf(dpath, "%s/%s%s", DEVPATH, dname, HDSUF); |
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#else |
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sprintf(dpath, "dev/%s%s", dname, HDSUF); |
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#endif |
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< |
com[0] = dpath; com[1] = froot; com[2] = NULL; |
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< |
i = open_process(dpd, com); |
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> |
/* dup stdin and stdout */ |
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> |
if (readinp) |
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> |
sprintf(fd0, "%d", dup(0)); |
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> |
else |
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> |
strcpy(fd0, "-1"); |
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> |
sprintf(fd1, "%d", dup(1)); |
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> |
/* start the display process */ |
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> |
cmd[0] = dpath; |
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> |
cmd[1] = froot; cmd[2] = fd1; cmd[3] = fd0; |
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> |
cmd[4] = NULL; |
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> |
i = open_process(dpd, cmd); |
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if (i <= 0) |
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error(USER, "cannot start display process"); |
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< |
if ((dpout = fdopen(dup(dpd[1]), "w")) == NULL) |
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> |
if ((dpout = fdopen(dpd[1], "w")) == NULL) |
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error(SYSTEM, "cannot associate FILE with display pipe"); |
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+ |
dpd[1] = -1; /* causes ignored error in close_process() */ |
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inp_flags = 0; |
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+ |
/* close dup'ed stdin and stdout */ |
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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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goto readerr; |
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} |
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switch (msg.type) { /* take appropriate action */ |
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< |
case DR_BUNDLE: |
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> |
case DR_BUNDLE: /* new bundle to calculate */ |
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if (msg.nbytes != sizeof(PACKHEAD)) |
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error(INTERNAL, "bad DR_BUNDLE from display process"); |
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bundle_set(BS_ADD, (PACKHEAD *)buf, 1); |
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break; |
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< |
case DR_NEWSET: |
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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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disp_result(DS_ENDIMM, 0, NULL); |
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disp_flush(); |
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break; |
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< |
case DR_ADDSET: |
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> |
case DR_ADDSET: /* add to calculation set */ |
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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: |
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> |
case DR_ADJSET: /* adjust calculation set members */ |
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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_result(DS_ENDIMM, 0, NULL); |
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disp_flush(); |
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break; |
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< |
case DR_DELSET: |
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> |
case DR_DELSET: /* delete from calculation set */ |
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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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break; |
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< |
case DR_ATTEN: |
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> |
case DR_ATTEN: /* block for priority request */ |
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if (msg.nbytes) |
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error(INTERNAL, "bad DR_ATTEN from display process"); |
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/* send acknowledgement */ |
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disp_result(DS_ACKNOW, 0, NULL); |
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return(disp_check(1)); /* block on following request */ |
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< |
case DR_SHUTDOWN: |
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> |
case DR_KILL: /* kill computation process(es) */ |
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if (msg.nbytes) |
| 159 |
+ |
error(INTERNAL, "bad DR_KILL from display process"); |
| 160 |
+ |
if (nprocs > 0) |
| 161 |
+ |
done_rtrace(); |
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+ |
else |
| 163 |
+ |
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) |
| 169 |
+ |
new_rtrace(); |
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+ |
else if (nprocs > 0) |
| 171 |
+ |
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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+ |
break; |
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+ |
case DR_CLOBBER: /* clobber holodeck */ |
| 176 |
+ |
if (msg.nbytes) |
| 177 |
+ |
error(INTERNAL, "bad DR_CLOBBER from display process"); |
| 178 |
+ |
if (!force || !ncprocs) |
| 179 |
+ |
error(WARNING, "request to clobber holodeck denied"); |
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+ |
else { |
| 181 |
+ |
error(WARNING, "clobbering holodeck contents"); |
| 182 |
+ |
hdclobber(NULL); |
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+ |
} |
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+ |
break; |
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+ |
case DR_SHUTDOWN: /* shut down program */ |
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+ |
if (msg.nbytes) |
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error(INTERNAL, "bad DR_SHUTDOWN from display process"); |
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return(0); /* zero return signals shutdown */ |
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< |
case DR_NOOP: |
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> |
case DR_NOOP: /* do nothing */ |
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break; |
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default: |
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error(INTERNAL, "unrecognized request from display process"); |
