1 |
gregl |
3.23 |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
2 |
gregl |
3.1 |
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3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ SGI"; |
5 |
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#endif |
6 |
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7 |
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/* |
8 |
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* Holodeck display process. |
9 |
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*/ |
10 |
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11 |
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#include "rholo.h" |
12 |
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#include "rhdisp.h" |
13 |
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#include "rhdriver.h" |
14 |
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#include "selcall.h" |
15 |
gregl |
3.10 |
#include <ctype.h> |
16 |
gregl |
3.1 |
|
17 |
gregl |
3.12 |
#ifndef VIEWHISTLEN |
18 |
gregl |
3.16 |
#define VIEWHISTLEN 4 /* number of remembered views */ |
19 |
gregl |
3.12 |
#endif |
20 |
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21 |
gwlarson |
3.36 |
#ifndef FSIZDEF |
22 |
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#define FSIZDEF 0.125 /* default focus frame size */ |
23 |
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#endif |
24 |
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25 |
gregl |
3.1 |
HOLO *hdlist[HDMAX+1]; /* global holodeck list */ |
26 |
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27 |
gwlarson |
3.38 |
char *hdgfn[HDMAX]; /* holodeck section geometry list */ |
28 |
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char *hdpfn[HDMAX]; /* section portal list */ |
29 |
gwlarson |
3.37 |
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30 |
gregl |
3.10 |
char cmdlist[DC_NCMDS][8] = DC_INIT; |
31 |
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32 |
gregl |
3.1 |
int imm_mode = 0; /* bundles are being delivered immediately */ |
33 |
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34 |
gregl |
3.20 |
int do_outside = 0; /* render from outside sections */ |
35 |
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36 |
gwlarson |
3.25 |
double eyesepdist = 1; /* eye separation distance */ |
37 |
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38 |
gregl |
3.1 |
char *progname; /* global argv[0] */ |
39 |
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40 |
gregl |
3.10 |
FILE *sstdin, *sstdout; /* server's standard input and output */ |
41 |
gregl |
3.1 |
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42 |
gregl |
3.21 |
#ifdef DEBUG |
43 |
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#include <sys/types.h> |
44 |
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extern time_t time(); |
45 |
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static time_t tmodesw; |
46 |
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static time_t timm, tadd; |
47 |
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static long nimmrays, naddrays; |
48 |
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#endif |
49 |
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50 |
gregl |
3.10 |
#define RDY_SRV 01 |
51 |
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#define RDY_DEV 02 |
52 |
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#define RDY_SIN 04 |
53 |
gregl |
3.1 |
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54 |
gregl |
3.10 |
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55 |
gregl |
3.1 |
main(argc, argv) |
56 |
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int argc; |
57 |
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char *argv[]; |
58 |
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{ |
59 |
gregl |
3.10 |
extern int eputs(); |
60 |
gregl |
3.3 |
int rdy, inp, res = 0, pause = 0; |
61 |
gregl |
3.1 |
|
62 |
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progname = argv[0]; |
63 |
gregl |
3.10 |
if (argc < 3) |
64 |
gregl |
3.1 |
error(USER, "bad command line arguments"); |
65 |
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/* open our device */ |
66 |
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dev_open(argv[1]); |
67 |
gregl |
3.10 |
/* open server process i/o */ |
68 |
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sstdout = fdopen(atoi(argv[2]), "w"); |
69 |
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if (argc < 4 || (inp = atoi(argv[3])) < 0) |
70 |
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sstdin = NULL; |
71 |
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else |
72 |
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sstdin = fdopen(inp, "r"); |
73 |
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/* set command error vector */ |
74 |
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erract[COMMAND].pf = eputs; |
75 |
gregl |
3.21 |
#ifdef DEBUG |
76 |
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tmodesw = time(NULL); |
77 |
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#endif |
78 |
gregl |
3.1 |
/* enter main loop */ |
79 |
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do { |
80 |
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rdy = disp_wait(); |
81 |
gregl |
3.19 |
if (rdy & RDY_SRV) { /* process server result */ |
82 |
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res = serv_result(); |
83 |
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if (pause && res != DS_SHUTDOWN) { |
84 |
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serv_request(DR_ATTEN, 0, NULL); |
85 |
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while ((res = serv_result()) != DS_ACKNOW && |
86 |
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res != DS_SHUTDOWN) |
87 |
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; |
88 |
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} |
89 |
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} |
90 |
gregl |
3.10 |
if (rdy & RDY_DEV) { /* user input from driver */ |
91 |
gregl |
3.3 |
inp = dev_input(); |
92 |
gregl |
3.13 |
if (inp & DFL(DC_SETVIEW)) |
93 |
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new_view(&odev.v); |
94 |
gwlarson |
3.37 |
else if (inp & DFL(DC_LASTVIEW)) |
95 |
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new_view(NULL); |
96 |
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if (inp & DFL(DC_REDRAW)) |
97 |
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imm_mode = beam_sync(1) > 0; |
98 |
gregl |
3.13 |
if (inp & DFL(DC_GETVIEW)) |
99 |
gregl |
3.10 |
printview(); |
100 |
gwlarson |
3.36 |
if (inp & DFL(DC_FOCUS)) |
101 |
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set_focus(odev_args); |
102 |
gregl |
3.15 |
if (inp & DFL(DC_KILL)) { |
103 |
gregl |
3.14 |
serv_request(DR_KILL, 0, NULL); |
104 |
gregl |
3.15 |
pause = 0; |
105 |
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} |
106 |
gregl |
3.14 |
if (inp & DFL(DC_CLOBBER)) |
107 |
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serv_request(DR_CLOBBER, 0, NULL); |
108 |
gregl |
3.15 |
if (inp & DFL(DC_RESTART)) { |
109 |
gregl |
3.14 |
serv_request(DR_RESTART, 0, NULL); |
110 |
gregl |
3.15 |
pause = 0; |
111 |
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} |
112 |
gwlarson |
3.32 |
if (inp & DFL(DC_RESUME)) { |
113 |
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serv_request(DR_NOOP, 0, NULL); |
114 |
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pause = 0; |
115 |
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} |
116 |
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if (inp & DFL(DC_PAUSE)) |
117 |
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pause = 1; |
118 |
gregl |
3.13 |
if (inp & DFL(DC_QUIT)) |
119 |
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serv_request(DR_SHUTDOWN, 0, NULL); |
120 |
gregl |
3.3 |
} |
121 |
gwlarson |
3.34 |
if (rdy & RDY_SIN && !imm_mode) /* user input from sstdin */ |
122 |
gregl |
3.10 |
switch (usr_input()) { |
123 |
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case DC_PAUSE: |
124 |
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pause = 1; |
125 |
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break; |
126 |
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case DC_RESUME: |
127 |
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serv_request(DR_NOOP, 0, NULL); |
128 |
gregl |
3.15 |
/* fall through */ |
129 |
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case DC_KILL: |
130 |
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case DC_RESTART: |
131 |
gregl |
3.10 |
pause = 0; |
132 |
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break; |
133 |
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} |
134 |
gregl |
3.1 |
} while (res != DS_SHUTDOWN); |
135 |
gregl |
3.21 |
#ifdef DEBUG |
136 |
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if (timm && nimmrays) |
137 |
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fprintf(stderr, |
138 |
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"%s: %.1f rays recalled/second (%ld rays total)\n", |
139 |
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progname, (double)nimmrays/timm, nimmrays); |
140 |
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if (tadd && naddrays) |
141 |
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fprintf(stderr, |
142 |
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"%s: %.1f rays calculated/second (%ld rays total)\n", |
143 |
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progname, (double)naddrays/tadd, naddrays); |
144 |
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#endif |
145 |
gregl |
3.1 |
/* all done */ |
146 |
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quit(0); |
147 |
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} |
148 |
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149 |
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150 |
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int |
151 |
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disp_wait() /* wait for more input */ |
152 |
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{ |
153 |
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fd_set readset, errset; |
154 |
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int flgs; |
155 |
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int n; |
156 |
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register int i; |
157 |
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/* see if we can avoid select call */ |
158 |
gwlarson |
3.30 |
flgs = 0; /* flag what's ready already */ |
159 |
gregl |
3.1 |
if (imm_mode || stdin->_cnt > 0) |
160 |
gwlarson |
3.30 |
flgs |= RDY_SRV; |
161 |
gregl |
3.10 |
if (sstdin != NULL && sstdin->_cnt > 0) |
162 |
gwlarson |
3.30 |
flgs |= RDY_SIN; |
163 |
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if (odev.inpready) |
164 |
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flgs |= RDY_DEV; |
165 |
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if (flgs) /* got something? */ |
166 |
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return(flgs); |
167 |
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if (dev_flush()) /* else flush output & check keyboard+mouse */ |
168 |
gregl |
3.4 |
return(RDY_DEV); |
169 |
gwlarson |
3.30 |
/* if nothing, we need to call select */ |
170 |
gregl |
3.1 |
FD_ZERO(&readset); FD_ZERO(&errset); |
171 |
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FD_SET(0, &readset); |
172 |
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FD_SET(0, &errset); |
173 |
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FD_SET(odev.ifd, &readset); |
174 |
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FD_SET(odev.ifd, &errset); |
175 |
gregl |
3.10 |
n = odev.ifd+1; |
176 |
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if (sstdin != NULL) { |
177 |
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FD_SET(fileno(sstdin), &readset); |
178 |
gregl |
3.23 |
FD_SET(fileno(sstdin), &errset); |
179 |
gregl |
3.10 |
if (fileno(sstdin) >= n) |
180 |
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n = fileno(sstdin) + 1; |
181 |
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} |
182 |
gregl |
3.1 |
n = select(n, &readset, NULL, &errset, NULL); |
183 |
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if (n < 0) { |
184 |
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if (errno == EINTR) |
185 |
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return(0); |
186 |
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error(SYSTEM, "select call failure in disp_wait"); |
187 |
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} |
188 |
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if (FD_ISSET(0, &readset) || FD_ISSET(0, &errset)) |
189 |
gregl |
3.4 |
flgs |= RDY_SRV; |
190 |
gregl |
3.1 |
if (FD_ISSET(odev.ifd, &readset) || FD_ISSET(odev.ifd, &errset)) |
191 |
gregl |
3.4 |
flgs |= RDY_DEV; |
192 |
gregl |
3.23 |
if (sstdin != NULL && (FD_ISSET(fileno(sstdin), &readset) || |
193 |
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FD_ISSET(fileno(sstdin), &errset))) |
194 |
gregl |
3.10 |
flgs |= RDY_SIN; |
195 |
gregl |
3.1 |
return(flgs); |
196 |
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} |
197 |
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198 |
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199 |
gwlarson |
3.38 |
add_holo(hdg, gfn, pfn) /* register a new holodeck section */ |
200 |
gregl |
3.1 |
HDGRID *hdg; |
201 |
gwlarson |
3.38 |
char *gfn, *pfn; |
202 |
gregl |
3.1 |
{ |
203 |
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VIEW nv; |
204 |
gregl |
3.20 |
double d; |
205 |
gregl |
3.1 |
register int hd; |
206 |
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207 |
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for (hd = 0; hd < HDMAX && hdlist[hd] != NULL; hd++) |
208 |
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; |
209 |
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if (hd >= HDMAX) |
210 |
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error(INTERNAL, "too many holodeck sections in add_holo"); |
211 |
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hdlist[hd] = (HOLO *)malloc(sizeof(HOLO)); |
212 |
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if (hdlist[hd] == NULL) |
213 |
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error(SYSTEM, "out of memory in add_holo"); |
214 |
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bcopy((char *)hdg, (char *)hdlist[hd], sizeof(HDGRID)); |
215 |
|
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hdcompgrid(hdlist[hd]); |
216 |
gwlarson |
3.38 |
hdgfn[hd] = savestr(gfn); |
217 |
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hdpfn[hd] = pfn && *pfn ? savestr(pfn) : (char *)NULL; |
218 |
gregl |
3.1 |
if (hd) |
219 |
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return; |
220 |
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/* set initial viewpoint */ |
221 |
|
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copystruct(&nv, &odev.v); |
222 |
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VSUM(nv.vp, hdlist[0]->orig, hdlist[0]->xv[0], 0.5); |
223 |
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VSUM(nv.vp, nv.vp, hdlist[0]->xv[1], 0.5); |
224 |
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VSUM(nv.vp, nv.vp, hdlist[0]->xv[2], 0.5); |
225 |
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fcross(nv.vdir, hdlist[0]->xv[1], hdlist[0]->xv[2]); |
226 |
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VCOPY(nv.vup, hdlist[0]->xv[2]); |
227 |
gregl |
3.20 |
if (do_outside) { |
228 |
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normalize(nv.vdir); |
229 |
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d = VLEN(hdlist[0]->xv[1]); |
230 |
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d += VLEN(hdlist[0]->xv[2]); |
231 |
|
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VSUM(nv.vp, nv.vp, nv.vdir, -d); |
232 |
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} |
233 |
gregl |
3.1 |
new_view(&nv); |
234 |
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} |
235 |
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236 |
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237 |
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disp_bundle(p) /* display a ray bundle */ |
238 |
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register PACKHEAD *p; |
239 |
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{ |
240 |
|
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GCOORD gc[2]; |
241 |
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FVECT ro, rd, wp; |
242 |
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double d; |
243 |
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register int i; |
244 |
|
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/* get beam coordinates */ |
245 |
|
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if (p->hd < 0 | p->hd >= HDMAX || hdlist[p->hd] == NULL) |
246 |
|
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error(INTERNAL, "bad holodeck number in disp_bundle"); |
247 |
|
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if (!hdbcoord(gc, hdlist[p->hd], p->bi)) |
248 |
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error(INTERNAL, "bad beam index in disp_bundle"); |
249 |
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/* display each ray */ |
250 |
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for (i = p->nr; i--; ) { |
251 |
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hdray(ro, rd, hdlist[p->hd], gc, packra(p)[i].r); |
252 |
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d = hddepth(hdlist[p->hd], packra(p)[i].d); |
253 |
gwlarson |
3.29 |
if (d < .99*FHUGE) { |
254 |
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VSUM(wp, ro, rd, d); /* might be behind viewpoint */ |
255 |
|
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dev_value(packra(p)[i].v, rd, wp); |
256 |
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} else |
257 |
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dev_value(packra(p)[i].v, rd, NULL); |
258 |
gregl |
3.1 |
} |
259 |
gregl |
3.21 |
#ifdef DEBUG |
260 |
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if (imm_mode) nimmrays += p->nr; |
261 |
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else naddrays += p->nr; |
262 |
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#endif |
263 |
gregl |
3.1 |
} |
264 |
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265 |
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266 |
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new_view(v) /* change view parameters */ |
267 |
gregl |
3.12 |
register VIEW *v; |
268 |
gregl |
3.1 |
{ |
269 |
gregl |
3.12 |
static VIEW viewhist[VIEWHISTLEN]; |
270 |
|
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static unsigned nhist; |
271 |
gwlarson |
3.24 |
VIEW *dv; |
272 |
gwlarson |
3.37 |
int i, res[2], *slist; |
273 |
gregl |
3.1 |
char *err; |
274 |
gregl |
3.12 |
/* restore previous view? */ |
275 |
|
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if (v == NULL) { |
276 |
gregl |
3.16 |
if (nhist > 1) /* get one before last setting */ |
277 |
|
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nhist--; |
278 |
|
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else /* else go to end of list */ |
279 |
|
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while (nhist < VIEWHISTLEN && viewhist[nhist].type) |
280 |
|
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nhist++; |
281 |
gregl |
3.12 |
v = viewhist + ((nhist-1)%VIEWHISTLEN); |
282 |
gregl |
3.17 |
} else |
283 |
|
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again: |
284 |
|
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if ((err = setview(v)) != NULL) { |
285 |
gregl |
3.12 |
error(COMMAND, err); |
286 |
|
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return; |
287 |
|
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} |
288 |
gwlarson |
3.37 |
if (!dev_view(v)) /* notify display driver */ |
289 |
|
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goto again; |
290 |
gregl |
3.12 |
if (v->type == VT_PAR) { |
291 |
|
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error(COMMAND, "cannot handle parallel views"); |
292 |
|
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return; |
293 |
|
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} |
294 |
gwlarson |
3.37 |
beam_init(odev.firstuse); /* compute new beam set */ |
295 |
|
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for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) { |
296 |
|
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if ((slist = beam_view(dv, res[0], res[1])) == NULL) { |
297 |
gwlarson |
3.24 |
if (!nhist) { |
298 |
|
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error(COMMAND, "invalid starting view"); |
299 |
|
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return; |
300 |
|
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} |
301 |
|
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copystruct(v, viewhist + ((nhist-1)%VIEWHISTLEN)); |
302 |
gwlarson |
3.37 |
goto again; /* poss. overloading dev_section()? */ |
303 |
|
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} |
304 |
|
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DCHECK(*slist < 0, WARNING, "no visible sections in new_view"); |
305 |
gwlarson |
3.38 |
for ( ; *slist >= 0; slist++) |
306 |
|
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dev_section(hdgfn[*slist], hdpfn[*slist]); |
307 |
gwlarson |
3.37 |
} |
308 |
gwlarson |
3.38 |
dev_section(NULL,NULL); /* end section list */ |
309 |
gwlarson |
3.37 |
dev_flush(); /* update display */ |
310 |
gwlarson |
3.34 |
/* update server */ |
311 |
gwlarson |
3.37 |
imm_mode = beam_sync(odev.firstuse) > 0; |
312 |
gregl |
3.12 |
/* record new view */ |
313 |
|
|
if (v < viewhist || v >= viewhist+VIEWHISTLEN) { |
314 |
|
|
copystruct(viewhist + (nhist%VIEWHISTLEN), v); |
315 |
|
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nhist++; |
316 |
|
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} |
317 |
gregl |
3.10 |
} |
318 |
|
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|
319 |
|
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|
320 |
gwlarson |
3.36 |
set_focus(args) /* set focus frame */ |
321 |
|
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char *args; |
322 |
|
|
{ |
323 |
|
|
double hcent, vcent, hsiz, vsiz; |
324 |
|
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VIEW *dv, vwfocus; |
325 |
|
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int i, res[2]; |
326 |
|
|
|
327 |
|
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i = sscanf(args, "%lf %lf %lf %lf", &hcent, &vcent, &hsiz, &vsiz); |
328 |
|
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if (i < 2 || hcent < 0 || hcent > 1 || vcent < 0 || vcent > 1) { |
329 |
|
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beam_init(0); /* restore view */ |
330 |
|
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for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
331 |
|
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beam_view(dv, res[0], res[1]); |
332 |
|
|
beam_sync(0); /* update server */ |
333 |
|
|
return; |
334 |
|
|
} |
335 |
|
|
if (i < 4 || hsiz <= hcent || hsiz > 1 || vsiz <= vcent || vsiz > 1) |
336 |
|
|
hsiz = vsiz = FSIZDEF; /* gave center only */ |
337 |
|
|
else { |
338 |
|
|
hsiz -= hcent; hcent += 0.5*hsiz; /* gave min and max */ |
339 |
|
|
vsiz -= vcent; vcent += 0.5*vsiz; |
340 |
|
|
} |
341 |
|
|
beam_init(0); /* add basic views */ |
342 |
|
|
for (i = 0; (dv = dev_auxview(i, res)) != NULL; i++) |
343 |
|
|
beam_view(dv, res[0]>>4, res[1]>>4); |
344 |
|
|
copystruct(&vwfocus, &odev.v); /* add focus view */ |
345 |
|
|
switch (odev.v.type) { |
346 |
|
|
case VT_PER: |
347 |
|
|
vwfocus.horiz = 2.*180./PI*atan( |
348 |
|
|
hsiz * tan(PI/180./2.*odev.v.horiz) ); |
349 |
|
|
vwfocus.vert = 2.*180./PI*atan( |
350 |
|
|
vsiz * tan(PI/180./2.*odev.v.vert) ); |
351 |
|
|
break; |
352 |
|
|
case VT_PAR: |
353 |
|
|
case VT_ANG: |
354 |
|
|
vwfocus.horiz = hsiz * odev.v.horiz; |
355 |
|
|
vwfocus.vert = vsiz * odev.v.vert; |
356 |
|
|
break; |
357 |
|
|
case VT_HEM: |
358 |
|
|
vwfocus.horiz = 2.*180./PI*asin( |
359 |
|
|
hsiz * sin(PI/180./2.*odev.v.horiz) ); |
360 |
|
|
vwfocus.vert = 2.*180./PI*asin( |
361 |
|
|
vsiz * sin(PI/180./2.*odev.v.vert) ); |
362 |
|
|
break; |
363 |
|
|
case VT_CYL: |
364 |
|
|
vwfocus.horiz = hsiz * odev.v.horiz; |
365 |
|
|
vwfocus.vert = 2.*180./PI*atan( |
366 |
|
|
vsiz * tan(PI/180./2.*odev.v.vert) ); |
367 |
|
|
break; |
368 |
|
|
default: |
369 |
|
|
error(INTERNAL, "bad view type in set_focus"); |
370 |
|
|
} |
371 |
|
|
vwfocus.hoff = (odev.v.hoff + hcent - 0.5)/hsiz; |
372 |
|
|
vwfocus.voff = (odev.v.voff + vcent - 0.5)/vsiz; |
373 |
|
|
setview(&vwfocus); |
374 |
|
|
beam_view(&vwfocus, (int)(3*odev.hres*hsiz)+100, |
375 |
|
|
(int)(3*odev.vres*vsiz)+100); |
376 |
|
|
beam_sync(0); /* update server */ |
377 |
|
|
} |
378 |
|
|
|
379 |
|
|
|
380 |
gregl |
3.10 |
int |
381 |
|
|
usr_input() /* get user input and process it */ |
382 |
|
|
{ |
383 |
|
|
VIEW vparams; |
384 |
gregl |
3.23 |
char cmd[256]; |
385 |
gregl |
3.10 |
register char *args; |
386 |
gregl |
3.11 |
register int i; |
387 |
gregl |
3.10 |
|
388 |
gregl |
3.23 |
if (fgets(cmd, sizeof(cmd), sstdin) == NULL) { |
389 |
|
|
fclose(sstdin); |
390 |
|
|
sstdin = NULL; |
391 |
gwlarson |
3.26 |
return(-1); |
392 |
gregl |
3.23 |
} |
393 |
gwlarson |
3.31 |
if (*cmd == '\n') |
394 |
gwlarson |
3.26 |
return(DC_RESUME); |
395 |
gregl |
3.10 |
for (args = cmd; *args && !isspace(*args); args++) |
396 |
|
|
; |
397 |
|
|
while (isspace(*args)) |
398 |
|
|
*args++ = '\0'; |
399 |
gregl |
3.11 |
if (*args && args[i=strlen(args)-1] == '\n') |
400 |
|
|
args[i] = '\0'; |
401 |
|
|
for (i = 0; i < DC_NCMDS; i++) |
402 |
|
|
if (!strcmp(cmd, cmdlist[i])) |
403 |
gregl |
3.10 |
break; |
404 |
gregl |
3.11 |
if (i >= DC_NCMDS) { |
405 |
gwlarson |
3.26 |
dev_auxcom(cmd, args); |
406 |
gregl |
3.10 |
return(-1); |
407 |
|
|
} |
408 |
gregl |
3.11 |
switch (i) { |
409 |
gregl |
3.10 |
case DC_SETVIEW: /* set the view */ |
410 |
|
|
copystruct(&vparams, &odev.v); |
411 |
|
|
if (!sscanview(&vparams, args)) |
412 |
|
|
error(COMMAND, "missing view options"); |
413 |
|
|
else |
414 |
|
|
new_view(&vparams); |
415 |
|
|
break; |
416 |
|
|
case DC_GETVIEW: /* print the current view */ |
417 |
|
|
printview(); |
418 |
gregl |
3.12 |
break; |
419 |
|
|
case DC_LASTVIEW: /* restore previous view */ |
420 |
|
|
new_view(NULL); |
421 |
gwlarson |
3.36 |
break; |
422 |
|
|
case DC_FOCUS: /* set focus frame */ |
423 |
|
|
set_focus(args); |
424 |
gregl |
3.10 |
break; |
425 |
|
|
case DC_PAUSE: /* pause the current calculation */ |
426 |
|
|
case DC_RESUME: /* resume the calculation */ |
427 |
|
|
/* handled in main() */ |
428 |
gregl |
3.13 |
break; |
429 |
|
|
case DC_REDRAW: /* redraw from server */ |
430 |
gwlarson |
3.24 |
imm_mode = beam_sync(1) > 0; |
431 |
gregl |
3.22 |
dev_clear(); |
432 |
gregl |
3.14 |
break; |
433 |
|
|
case DC_KILL: /* kill rtrace process(es) */ |
434 |
|
|
serv_request(DR_KILL, 0, NULL); |
435 |
|
|
break; |
436 |
|
|
case DC_CLOBBER: /* clobber holodeck */ |
437 |
|
|
serv_request(DR_CLOBBER, 0, NULL); |
438 |
|
|
break; |
439 |
|
|
case DC_RESTART: /* restart rtrace */ |
440 |
|
|
serv_request(DR_RESTART, 0, NULL); |
441 |
gregl |
3.10 |
break; |
442 |
|
|
case DC_QUIT: /* quit request */ |
443 |
|
|
serv_request(DR_SHUTDOWN, 0, NULL); |
444 |
|
|
break; |
445 |
|
|
default: |
446 |
|
|
error(CONSISTENCY, "bad command id in usr_input"); |
447 |
|
|
} |
448 |
gregl |
3.11 |
return(i); |
449 |
gregl |
3.10 |
} |
450 |
|
|
|
451 |
|
|
|
452 |
|
|
printview() /* print our current view to server stdout */ |
453 |
|
|
{ |
454 |
|
|
fputs(VIEWSTR, sstdout); |
455 |
|
|
fprintview(&odev.v, sstdout); |
456 |
|
|
fputc('\n', sstdout); |
457 |
|
|
fflush(sstdout); |
458 |
gregl |
3.1 |
} |
459 |
|
|
|
460 |
|
|
|
461 |
|
|
int |
462 |
|
|
serv_result() /* get next server result and process it */ |
463 |
|
|
{ |
464 |
|
|
static char *buf = NULL; |
465 |
|
|
static int bufsiz = 0; |
466 |
|
|
MSGHEAD msg; |
467 |
|
|
int n; |
468 |
|
|
/* read message header */ |
469 |
|
|
if (fread((char *)&msg, sizeof(MSGHEAD), 1, stdin) != 1) |
470 |
|
|
goto readerr; |
471 |
|
|
if (msg.nbytes > 0) { /* get the message body */ |
472 |
|
|
if (msg.nbytes > bufsiz) { |
473 |
|
|
if (buf == NULL) |
474 |
|
|
buf = (char *)malloc(bufsiz=msg.nbytes); |
475 |
|
|
else |
476 |
|
|
buf = (char *)realloc(buf, bufsiz=msg.nbytes); |
477 |
|
|
if (buf == NULL) |
478 |
|
|
error(SYSTEM, "out of memory in serv_result"); |
479 |
|
|
} |
480 |
|
|
if (fread(buf, 1, msg.nbytes, stdin) != msg.nbytes) |
481 |
|
|
goto readerr; |
482 |
|
|
} |
483 |
|
|
switch (msg.type) { /* process results */ |
484 |
|
|
case DS_BUNDLE: |
485 |
|
|
if (msg.nbytes < sizeof(PACKHEAD) || |
486 |
|
|
msg.nbytes != packsiz(((PACKHEAD *)buf)->nr)) |
487 |
|
|
error(INTERNAL, "bad display packet from server"); |
488 |
|
|
disp_bundle((PACKHEAD *)buf); |
489 |
|
|
break; |
490 |
|
|
case DS_ADDHOLO: |
491 |
gwlarson |
3.38 |
if (msg.nbytes < sizeof(HDGRID)+2) |
492 |
gregl |
3.1 |
error(INTERNAL, "bad holodeck record from server"); |
493 |
gwlarson |
3.38 |
add_holo((HDGRID *)buf, buf+sizeof(HDGRID), |
494 |
|
|
buf+sizeof(HDGRID)+strlen(buf+sizeof(HDGRID))+1); |
495 |
gregl |
3.20 |
break; |
496 |
|
|
case DS_OUTSECT: |
497 |
|
|
do_outside = 1; |
498 |
gwlarson |
3.28 |
goto noargs; |
499 |
gwlarson |
3.25 |
case DS_EYESEP: |
500 |
|
|
if (msg.nbytes <= 1 || (eyesepdist = atof(buf)) <= FTINY) |
501 |
|
|
error(INTERNAL, "bad eye separation from server"); |
502 |
gregl |
3.1 |
break; |
503 |
|
|
case DS_STARTIMM: |
504 |
|
|
case DS_ENDIMM: |
505 |
gwlarson |
3.39 |
if (!(imm_mode = msg.type==DS_STARTIMM)) |
506 |
|
|
dev_flush(); |
507 |
gregl |
3.21 |
#ifdef DEBUG |
508 |
gwlarson |
3.35 |
{ |
509 |
gregl |
3.21 |
time_t tnow = time(NULL); |
510 |
gwlarson |
3.35 |
if (msg.type==DS_STARTIMM) tadd += tnow - tmodesw; |
511 |
|
|
else timm += tnow - tmodesw; |
512 |
gregl |
3.21 |
tmodesw = tnow; |
513 |
|
|
} |
514 |
|
|
#endif |
515 |
gwlarson |
3.28 |
goto noargs; |
516 |
gregl |
3.1 |
case DS_ACKNOW: |
517 |
|
|
case DS_SHUTDOWN: |
518 |
gwlarson |
3.28 |
goto noargs; |
519 |
gregl |
3.1 |
default: |
520 |
|
|
error(INTERNAL, "unrecognized result from server process"); |
521 |
|
|
} |
522 |
|
|
return(msg.type); /* return message type */ |
523 |
gwlarson |
3.28 |
noargs: |
524 |
|
|
if (msg.nbytes) { |
525 |
|
|
sprintf(errmsg, "unexpected body with server message %d", |
526 |
|
|
msg.type); |
527 |
|
|
error(INTERNAL, errmsg); |
528 |
|
|
} |
529 |
|
|
return(msg.type); |
530 |
gregl |
3.1 |
readerr: |
531 |
|
|
if (feof(stdin)) |
532 |
|
|
error(SYSTEM, "server process died"); |
533 |
|
|
error(SYSTEM, "error reading from server process"); |
534 |
|
|
} |
535 |
|
|
|
536 |
|
|
|
537 |
|
|
serv_request(type, nbytes, p) /* send a request to the server process */ |
538 |
|
|
int type, nbytes; |
539 |
|
|
char *p; |
540 |
|
|
{ |
541 |
|
|
MSGHEAD msg; |
542 |
|
|
int m; |
543 |
gwlarson |
3.33 |
/* consistency checks */ |
544 |
gwlarson |
3.37 |
DCHECK(nbytes < 0 || nbytes > 0 & p == NULL, |
545 |
|
|
CONSISTENCY, "bad buffer handed to serv_request"); |
546 |
gregl |
3.1 |
/* get server's attention for big request */ |
547 |
|
|
if (nbytes >= BIGREQSIZ-sizeof(MSGHEAD)) { |
548 |
|
|
serv_request(DR_ATTEN, 0, NULL); |
549 |
|
|
while ((m = serv_result()) != DS_ACKNOW) |
550 |
|
|
if (m == DS_SHUTDOWN) /* the bugger quit on us */ |
551 |
|
|
quit(0); |
552 |
|
|
} |
553 |
|
|
msg.type = type; /* write and flush the message */ |
554 |
|
|
msg.nbytes = nbytes; |
555 |
|
|
fwrite((char *)&msg, sizeof(MSGHEAD), 1, stdout); |
556 |
|
|
if (nbytes > 0) |
557 |
|
|
fwrite(p, 1, nbytes, stdout); |
558 |
|
|
if (fflush(stdout) < 0) |
559 |
|
|
error(SYSTEM, "write error in serv_request"); |
560 |
gregl |
3.2 |
} |
561 |
|
|
|
562 |
|
|
|
563 |
|
|
eputs(s) /* put error message to stderr */ |
564 |
|
|
register char *s; |
565 |
|
|
{ |
566 |
|
|
static int midline = 0; |
567 |
|
|
|
568 |
|
|
if (!*s) |
569 |
|
|
return; |
570 |
|
|
if (!midline++) { /* prepend line with program name */ |
571 |
|
|
fputs(progname, stderr); |
572 |
|
|
fputs(": ", stderr); |
573 |
|
|
} |
574 |
|
|
fputs(s, stderr); |
575 |
|
|
if (s[strlen(s)-1] == '\n') { |
576 |
|
|
fflush(stderr); |
577 |
|
|
midline = 0; |
578 |
|
|
} |
579 |
gregl |
3.1 |
} |
580 |
|
|
|
581 |
|
|
|
582 |
|
|
quit(code) /* clean up and exit */ |
583 |
|
|
int code; |
584 |
|
|
{ |
585 |
gwlarson |
3.38 |
if (code) |
586 |
|
|
exit(code); |
587 |
gregl |
3.1 |
if (odev.v.type) |
588 |
|
|
dev_close(); |
589 |
gwlarson |
3.38 |
exit(0); |
590 |
gregl |
3.1 |
} |