1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
|
/*
* PCBIN.C - binary IO for PPC
*
* Source Version: 2.0
* Software Release #92-0043
*
*/
#include "cpyright.h"
#include "ppc.h"
#define N_TYPES 7
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_PR_FLUSH - flush function to hang on the io_flush_hook */
int _PC_pr_flush(fp)
FILE *fp;
{PROCESS *pp;
pp = (PROCESS *) fp;
PC_flush(pp);
return(FALSE);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_PR_TELL - a no-op tell to hang on the io_tell_hook */
long _PC_pr_tell(fp)
FILE *fp;
{return(0L);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_PR_SEEK - a no-op seek to hang on the io_seek_hook */
int _PC_pr_seek(stream, offset, whence)
FILE *stream;
long offset;
int whence;
{return(0);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_PR_READ_A - a read function to hang on the io_read_hook sometimes */
size_t _PC_pr_read_a(ptr, size, nitems, pp)
byte *ptr;
size_t size, nitems;
PROCESS *pp;
{char *s;
s = PC_gets(ptr, size*nitems, pp);
if (s != NULL)
PRINT(stdout, "| %s", s);
return(s == NULL ? 0 : strlen(s));}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_PR_READ_B - a read function to hang on the io_read_hook sometimes */
size_t _PC_pr_read_b(ptr, size, nitems, pp)
byte *ptr;
size_t size, nitems;
PROCESS *pp;
{unsigned char *cp;
long ni;
size_t len;
len = size*nitems;
cp = (unsigned char *) ptr;
/* vacuum anything left in the PROCESS ring into the buffer */
/* copy the output to the buffer */
ni = _PC_buffer_out((char *) cp, pp, len, TRUE);
len -= ni;
cp += ni;
while (TRUE)
{ni = read(pp->in, (char *) cp, len);
if (ni < 0)
continue;
/* if not enough note what has come and get some more */
if (ni < len)
{len -= ni;
cp += ni;}
/* buffer up anything left over */
else if (ni > len)
{cp += len;
ni -= len;
_PC_buffer_in((char *) cp, ni, pp);
break;}
/* if right on quit while ahead */
else
break;};
return(nitems);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_PR_WRITE - a write function to hang on the io_write_hook */
size_t _PC_pr_write(ptr, size, nitems, pp)
byte *ptr;
size_t size, nitems;
PROCESS *pp;
{size_t ni, len;
len = size*nitems;
ni = write(pp->out, ptr, len);
return(ni/size);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_RECV_FORMATS - receive binary formats from the given PROCESS */
int PC_recv_formats(pp)
PROCESS *pp;
{long nc;
char s[LRG_TXT_BUFFER+2];
PC_ERR_TRAP(FALSE);
PC_block(pp);
PC_set_attr(pp, PC_LINE, TRUE);
for (nc = 0; nc < LRG_TXT_BUFFER; nc = strlen(s))
{if (PC_status(pp) != RUNNING)
PC_error("PROCESS NOT RUNNING %d %d - PC_RECV_FORMATS",
pp->status, pp->reason);
PC_gets(s+nc, MAXLINE, pp);
if (strcmp(s+nc, "END FORMATS\n") == 0)
break;};
_PD_rd_prim_extras(pp->vif, ' ', '\f', s);
PC_unblock(pp);
return(TRUE);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* PC_SEND_FORMATS - send binary formats to the parent PROCESS connected
* - to standard in and out
*/
int PC_send_formats()
{PFSize_t writeh;
PFInt flushh;
FILE *fp;
extern char *_PD_tbuffer;
fp = stdout;
fflush(fp);
SC_setbuf(fp, NULL);
/* remember the I/O hooks */
writeh = io_write_hook;
flushh = io_flush_hook;
/* reset the I/O hooks */
io_write_hook = (PFSize_t) fwrite;
io_flush_hook = (PFInt) fflush;
if ((PC_terminal == NULL) || (PC_terminal->vif == NULL))
{io_write_hook = writeh;
io_flush_hook = flushh;
return(FALSE);};
_PD_wr_prim_extras(fp, PC_terminal->vif->chart, ' ', '\f');
io_write(_PD_tbuffer, 1, strlen(_PD_tbuffer), fp);
io_flush(fp);
/* restore the I/O hooks */
io_write_hook = writeh;
io_flush_hook = flushh;
PRINT(fp, "END FORMATS\n");
return(TRUE);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_BIN_READ - do binary read from a PROCESS */
int _PC_bin_read(ptr, type, nitems, pp)
byte *ptr;
char *type;
size_t nitems;
PROCESS *pp;
{PDBfile *file;
int ni;
syment *ep;
PFfflush flushh;
PFfseek seekh;
PFftell tellh;
PFfread readh;
file = pp->vif;
switch (setjmp(_PD_read_err))
{case ABORT : return(FALSE);
case ERR_FREE : return(TRUE);
default : memset(PD_err, 0, MAXLINE);
break;};
ep = _PD_mk_syment(type, nitems, 0L, NULL, NULL);
/* remember the I/O hooks */
flushh = io_flush_hook;
tellh = io_tell_hook;
seekh = io_seek_hook;
readh = io_read_hook;
/* reset the I/O hooks */
io_flush_hook = (PFfflush) _PC_pr_flush;
io_tell_hook = (PFftell) _PC_pr_tell;
io_seek_hook = (PFfseek) _PC_pr_seek;
io_read_hook = (PFfread) _PC_pr_read_b;
ni = _PD_rd_syment(file, ep, type, ptr);
_PD_rl_syment(ep);
/* restore the I/O hooks */
io_flush_hook = flushh;
io_tell_hook = tellh;
io_read_hook = readh;
io_seek_hook = seekh;
return((int) ni);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* _PC_BIN_WRITE - do binary write to a PROCESS */
int _PC_bin_write(ptr, type, nitems, pp)
byte *ptr;
char *type;
size_t nitems;
PROCESS *pp;
{PDBfile *file;
int ni;
PFfflush flushh;
PFfseek seekh;
PFftell tellh;
PFfwrite writeh;
file = pp->vif;
switch (setjmp(_PD_write_err))
{case ABORT : return(FALSE);
case ERR_FREE : return(TRUE);
default : memset(PD_err, 0, MAXLINE);
break;};
/* remember the I/O hooks */
flushh = io_flush_hook;
tellh = io_tell_hook;
seekh = io_seek_hook;
writeh = io_write_hook;
/* reset the I/O hooks */
io_flush_hook = (PFfflush) _PC_pr_flush;
io_tell_hook = (PFftell) _PC_pr_tell;
io_seek_hook = (PFfseek) _PC_pr_seek;
io_write_hook = (PFfwrite) _PC_pr_write;
ni = _PD_wr_syment(file, ptr, nitems, type, type);
/* restore the I/O hooks */
io_flush_hook = flushh;
io_tell_hook = tellh;
io_write_hook = writeh;
io_seek_hook = seekh;
return(ni);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
|
