extern void
disp_packet( /* display a packet */
register PACKHEAD *p
)
{
disp_result(DS_BUNDLE, packsiz(p->nr), (char *)p);
}
extern int
serv_result(void) /* get next server result and process it */
{
static char *buf = NULL;
static int bufsiz = 0;
MSGHEAD msg;
/* read message header */
if (fread((char *)&msg, sizeof(MSGHEAD), 1, stdin) != 1)
goto readerr;
if (msg.nbytes > 0) { /* get the message body */
if (msg.nbytes > bufsiz) {
if (buf == NULL)
buf = (char *)malloc(bufsiz=msg.nbytes);
else
buf = (char *)realloc((void *)buf,
bufsiz=msg.nbytes);
if (buf == NULL)
error(SYSTEM, "out of memory in serv_result");
}
if (fread(buf, 1, msg.nbytes, stdin) != msg.nbytes)
goto readerr;
}
switch (msg.type) { /* process results */
case DS_BUNDLE:
if (msg.nbytes < sizeof(PACKHEAD) ||
msg.nbytes != packsiz(((PACKHEAD *)buf)->nr))
error(INTERNAL, "bad display packet from server");
disp_bundle((PACKHEAD *)buf);
break;
case DS_ADDHOLO:
if (msg.nbytes < sizeof(HDGRID)+2)
error(INTERNAL, "bad holodeck record from server");
add_holo((HDGRID *)buf, buf+sizeof(HDGRID),
buf+sizeof(HDGRID)+strlen(buf+sizeof(HDGRID))+1);
break;
case DS_OUTSECT:
do_outside = 1;
goto noargs;
case DS_EYESEP:
if (msg.nbytes <= 1 || (eyesepdist = atof(buf)) <= FTINY)
error(INTERNAL, "bad eye separation from server");
break;
case DS_STARTIMM:
case DS_ENDIMM:
if (!(imm_mode = (msg.type==DS_STARTIMM)))
dev_flush();
#ifdef DEBUG
{
time_t tnow = time(NULL);
if (msg.type==DS_STARTIMM) tadd += tnow - tmodesw;
else timm += tnow - tmodesw;
tmodesw = tnow;
}
#endif
goto noargs;
case DS_ACKNOW:
case DS_SHUTDOWN:
goto noargs;
default:
error(INTERNAL, "unrecognized result from server process");
}
return(msg.type); /* return message type */
noargs:
if (msg.nbytes) {
sprintf(errmsg, "unexpected body with server message %d",
msg.type);
error(INTERNAL, errmsg);
}
return(msg.type);
readerr:
if (feof(stdin))
error(SYSTEM, "server process died");
error(SYSTEM, "error reading from server process");
return -1;
}
