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#include <ctype.h> |
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#ifndef VIEWHISTLEN |
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< |
#define VIEWHISTLEN 2 /* number of remembered views */ |
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> |
#define VIEWHISTLEN 4 /* number of remembered views */ |
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#endif |
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HOLO *hdlist[HDMAX+1]; /* global holodeck list */ |
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/* enter main loop */ |
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do { |
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rdy = disp_wait(); |
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+ |
if (rdy & RDY_SRV) { /* process server result */ |
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res = serv_result(); |
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if (pause && res != DS_SHUTDOWN) { |
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serv_request(DR_ATTEN, 0, NULL); |
63 |
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while ((res = serv_result()) != DS_ACKNOW && |
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res != DS_SHUTDOWN) |
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; |
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} |
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} |
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if (rdy & RDY_DEV) { /* user input from driver */ |
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inp = dev_input(); |
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if (inp & DFL(DC_SETVIEW)) |
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pause = 0; |
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break; |
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} |
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– |
if (rdy & RDY_SRV) { /* process server result */ |
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res = serv_result(); |
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– |
if (pause && res != DS_SHUTDOWN) { |
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serv_request(DR_ATTEN, 0, NULL); |
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– |
while ((res = serv_result()) != DS_ACKNOW && |
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res != DS_SHUTDOWN) |
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; |
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– |
} |
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– |
} |
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} while (res != DS_SHUTDOWN); |
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/* all done */ |
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quit(0); |
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char *err; |
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/* restore previous view? */ |
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if (v == NULL) { |
217 |
< |
if (nhist < 2) { |
218 |
< |
error(COMMAND, "no previous view"); |
219 |
< |
return; |
220 |
< |
} |
221 |
< |
nhist--; /* get one before last setting */ |
217 |
> |
if (nhist > 1) /* get one before last setting */ |
218 |
> |
nhist--; |
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> |
else /* else go to end of list */ |
220 |
> |
while (nhist < VIEWHISTLEN && viewhist[nhist].type) |
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> |
nhist++; |
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v = viewhist + ((nhist-1)%VIEWHISTLEN); |
223 |
< |
} else if ((err = setview(v)) != NULL) { |
223 |
> |
} else |
224 |
> |
again: |
225 |
> |
if ((err = setview(v)) != NULL) { |
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error(COMMAND, err); |
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return; |
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} |
227 |
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again: |
229 |
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if (v->type == VT_PAR) { |
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error(COMMAND, "cannot handle parallel views"); |
231 |
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return; |
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case DS_STARTIMM: |
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case DS_ENDIMM: |
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imm_mode = msg.type==DS_STARTIMM; |
357 |
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if (msg.type == DS_ENDIMM) |
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– |
dev_flush(); /* update display NOW */ |
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/* fall through */ |
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case DS_ACKNOW: |
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case DS_SHUTDOWN: |