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
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
|
#ifdef __cplusplus
extern "C" {
#endif
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#ifdef __cplusplus
}
#endif
#include <sys/shm.h>
#include <sys/sem.h>
#include <sys/ipc.h>
#include "sharelite.h"
/*
* Some perl version compatibility stuff.
* Taken from HTML::Parser
*/
#include "patchlevel.h"
#if PATCHLEVEL <= 4 /* perl5.004_XX */
#ifndef PL_sv_undef
#define PL_sv_undef sv_undef
#define PL_sv_yes sv_yes
#endif
#ifndef PL_hexdigit
#define PL_hexdigit hexdigit
#endif
#if (PATCHLEVEL == 4 && SUBVERSION <= 4)
/* The newSVpvn function was introduced in perl5.004_05 */
static SV *
newSVpvn(char *s, STRLEN len)
{
register SV *sv = newSV(0);
sv_setpvn(sv,s,len);
return sv;
}
#endif /* not perl5.004_05 */
#endif /* perl5.004_XX */
static int
not_here(s)
char *s;
{
croak("%s not implemented on this architecture", s);
return -1;
}
static double
constant(name, arg)
char *name;
int arg;
{
errno = 0;
switch (*name) {
case 'A':
break;
case 'B':
break;
case 'C':
break;
case 'D':
break;
case 'E':
break;
case 'F':
break;
case 'G':
if (strEQ(name, "GETALL"))
#ifdef GETALL
return GETALL;
#else
goto not_there;
#endif
if (strEQ(name, "GETNCNT"))
#ifdef GETNCNT
return GETNCNT;
#else
goto not_there;
#endif
if (strEQ(name, "GETPID"))
#ifdef GETPID
return GETPID;
#else
goto not_there;
#endif
if (strEQ(name, "GETVAL"))
#ifdef GETVAL
return GETVAL;
#else
goto not_there;
#endif
if (strEQ(name, "GETZCNT"))
#ifdef GETZCNT
return GETZCNT;
#else
goto not_there;
#endif
break;
case 'H':
break;
case 'I':
if (strEQ(name, "IPC_ALLOC"))
#ifdef IPC_ALLOC
return IPC_ALLOC;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_CREAT"))
#ifdef IPC_CREAT
return IPC_CREAT;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_EXCL"))
#ifdef IPC_EXCL
return IPC_EXCL;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_NOWAIT"))
#ifdef IPC_NOWAIT
return IPC_NOWAIT;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_O_RMID"))
#ifdef IPC_O_RMID
return IPC_O_RMID;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_O_SET"))
#ifdef IPC_O_SET
return IPC_O_SET;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_O_STAT"))
#ifdef IPC_O_STAT
return IPC_O_STAT;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_PRIVATE"))
#ifdef IPC_PRIVATE
return IPC_PRIVATE;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_RMID"))
#ifdef IPC_RMID
return IPC_RMID;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_SET"))
#ifdef IPC_SET
return IPC_SET;
#else
goto not_there;
#endif
if (strEQ(name, "IPC_STAT"))
#ifdef IPC_STAT
return IPC_STAT;
#else
goto not_there;
#endif
break;
case 'J':
break;
case 'K':
break;
case 'L':
if (strEQ(name, "LOCK_EX"))
#ifdef LOCK_EX
return LOCK_EX;
#else
goto not_there;
#endif
if (strEQ(name, "LOCK_SH"))
#ifdef LOCK_SH
return LOCK_SH;
#else
goto not_there;
#endif
if (strEQ(name, "LOCK_NB"))
#ifdef LOCK_NB
return LOCK_NB;
#else
goto not_there;
#endif
if (strEQ(name, "LOCK_UN"))
#ifdef LOCK_UN
return LOCK_UN;
#else
goto not_there;
#endif
break;
case 'M':
break;
case 'N':
break;
case 'O':
break;
case 'P':
break;
case 'Q':
break;
case 'R':
break;
case 'S':
if (strEQ(name, "SEM_A"))
#ifdef SEM_A
return SEM_A;
#else
goto not_there;
#endif
if (strEQ(name, "SEM_R"))
#ifdef SEM_R
return SEM_R;
#else
goto not_there;
#endif
if (strEQ(name, "SEM_UNDO"))
#ifdef SEM_UNDO
return SEM_UNDO;
#else
goto not_there;
#endif
if (strEQ(name, "SETALL"))
#ifdef SETALL
return SETALL;
#else
goto not_there;
#endif
if (strEQ(name, "SETVAL"))
#ifdef SETVAL
return SETVAL;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_LOCK"))
#ifdef SHM_LOCK
return SHM_LOCK;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_R"))
#ifdef SHM_R
return SHM_R;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_RDONLY"))
#ifdef SHM_RDONLY
return SHM_RDONLY;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_RND"))
#ifdef SHM_RND
return SHM_RND;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_SHARE_MMU"))
#ifdef SHM_SHARE_MMU
return SHM_SHARE_MMU;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_UNLOCK"))
#ifdef SHM_UNLOCK
return SHM_UNLOCK;
#else
goto not_there;
#endif
if (strEQ(name, "SHM_W"))
#ifdef SHM_W
return SHM_W;
#else
goto not_there;
#endif
break;
case 'T':
break;
case 'U':
break;
case 'V':
break;
case 'W':
break;
case 'X':
break;
case 'Y':
break;
case 'Z':
break;
}
errno = EINVAL;
return 0;
not_there:
errno = ENOENT;
return 0;
}
MODULE = IPC::ShareLite PACKAGE = IPC::ShareLite
double
constant(name,arg)
char * name
int arg
Share*
new_share(key, segment_size, flags)
key_t key
int segment_size
int flags
int
write_share(share, data, length)
Share* share
char* data
int length
char*
read_share(share)
Share* share
PREINIT:
char* data;
int length;
CODE:
share = (Share *)SvIV(ST(0));
length = read_share(share, &data);
ST(0) = sv_newmortal();
if (length >= 0) {
sv_usepvn((SV*)ST(0), data, length);
} else {
sv_setsv(ST(0), &PL_sv_undef);
}
int
destroy_share(share, rmid)
Share* share
int rmid
int
sharelite_lock(share, flags)
Share* share
int flags
int
sharelite_unlock(share)
Share* share
unsigned int
sharelite_version(share)
Share* share
int
sharelite_num_segments(share)
Share* share
|