17 |
|
|
18 |
|
int imm_mode = 0; /* bundles are being delivered immediately */ |
19 |
|
|
20 |
– |
VIEW dvw; /* our current display view */ |
21 |
– |
|
20 |
|
char *progname; /* global argv[0] */ |
21 |
|
|
22 |
< |
#define SERV_READY 01 |
23 |
< |
#define DEV_READY 02 |
22 |
> |
#define RDY_SRV 01 |
23 |
> |
#define RDY_DEV 02 |
24 |
|
|
25 |
|
|
26 |
|
main(argc, argv) |
27 |
|
int argc; |
28 |
|
char *argv[]; |
29 |
|
{ |
30 |
< |
int rdy, inp, res = 0; |
30 |
> |
int rdy, inp, res = 0, pause = 0; |
31 |
|
|
32 |
|
progname = argv[0]; |
33 |
|
if (argc != 2) |
37 |
|
/* enter main loop */ |
38 |
|
do { |
39 |
|
rdy = disp_wait(); |
40 |
< |
if (rdy & DEV_READY) { |
41 |
< |
inp = dev_input(); /* take residual action here */ |
40 |
> |
if (rdy & RDY_DEV) { /* get user input */ |
41 |
> |
inp = dev_input(); |
42 |
> |
if (inp & DEV_NEWVIEW) |
43 |
> |
new_view(&odev.v); |
44 |
|
if (inp & DEV_SHUTDOWN) |
45 |
|
serv_request(DR_SHUTDOWN, 0, NULL); |
46 |
< |
else if (inp & DEV_NEWVIEW) |
47 |
< |
new_view(&odev.v); |
46 |
> |
if (inp & DEV_REDRAW) { |
47 |
> |
imm_mode = 1; /* preempt updates */ |
48 |
> |
beam_sync(); |
49 |
> |
} |
50 |
> |
if (inp & DEV_WAIT) |
51 |
> |
pause = 1; |
52 |
> |
if (inp & DEV_RESUME) { |
53 |
> |
serv_request(DR_NOOP, 0, NULL); |
54 |
> |
pause = 0; |
55 |
> |
} |
56 |
|
} |
57 |
< |
if (rdy & SERV_READY) |
58 |
< |
res = serv_result(); /* processes result, also */ |
57 |
> |
if (rdy & RDY_SRV) { /* get server result */ |
58 |
> |
res = serv_result(); |
59 |
> |
if (pause && res != DS_SHUTDOWN) { |
60 |
> |
serv_request(DR_ATTEN, 0, NULL); |
61 |
> |
while ((res = serv_result()) != DS_ACKNOW && |
62 |
> |
res != DS_SHUTDOWN) |
63 |
> |
; |
64 |
> |
} |
65 |
> |
} |
66 |
|
} while (res != DS_SHUTDOWN); |
67 |
|
/* all done */ |
68 |
|
quit(0); |
78 |
|
register int i; |
79 |
|
/* see if we can avoid select call */ |
80 |
|
if (imm_mode || stdin->_cnt > 0) |
81 |
< |
return(SERV_READY); |
81 |
> |
return(RDY_SRV); |
82 |
|
if (dev_flush()) |
83 |
< |
return(DEV_READY); |
83 |
> |
return(RDY_DEV); |
84 |
|
/* make the call */ |
85 |
|
FD_ZERO(&readset); FD_ZERO(&errset); |
86 |
|
FD_SET(0, &readset); |
96 |
|
} |
97 |
|
flgs = 0; /* flag what's ready */ |
98 |
|
if (FD_ISSET(0, &readset) || FD_ISSET(0, &errset)) |
99 |
< |
flgs |= SERV_READY; |
99 |
> |
flgs |= RDY_SRV; |
100 |
|
if (FD_ISSET(odev.ifd, &readset) || FD_ISSET(odev.ifd, &errset)) |
101 |
< |
flgs |= DEV_READY; |
101 |
> |
flgs |= RDY_DEV; |
102 |
|
return(flgs); |
103 |
|
} |
104 |
|
|
161 |
|
if ((err = setview(v)) != NULL) |
162 |
|
error(INTERNAL, err); |
163 |
|
dev_view(v); /* update display driver */ |
164 |
< |
beam_view(&dvw, v); /* update beam list */ |
165 |
< |
copystruct(&dvw, v); /* record new view */ |
164 |
> |
dev_flush(); /* update screen */ |
165 |
> |
beam_view(v); /* update beam list */ |
166 |
|
} |
167 |
|
|
168 |
|
|
244 |
|
fwrite(p, 1, nbytes, stdout); |
245 |
|
if (fflush(stdout) < 0) |
246 |
|
error(SYSTEM, "write error in serv_request"); |
247 |
+ |
} |
248 |
+ |
|
249 |
+ |
|
250 |
+ |
eputs(s) /* put error message to stderr */ |
251 |
+ |
register char *s; |
252 |
+ |
{ |
253 |
+ |
static int midline = 0; |
254 |
+ |
|
255 |
+ |
if (!*s) |
256 |
+ |
return; |
257 |
+ |
if (!midline++) { /* prepend line with program name */ |
258 |
+ |
fputs(progname, stderr); |
259 |
+ |
fputs(": ", stderr); |
260 |
+ |
} |
261 |
+ |
fputs(s, stderr); |
262 |
+ |
if (s[strlen(s)-1] == '\n') { |
263 |
+ |
fflush(stderr); |
264 |
+ |
midline = 0; |
265 |
+ |
} |
266 |
|
} |
267 |
|
|
268 |
|
|