1 /*******************************************************************************
3 * Version 2.x, Copyright (C) 2007-2013, Marcus Holland-Moritz <mhx@cpan.org>.
4 * Version 1.x, Copyright (C) 1999, Graham Barr <gbarr@pobox.com>.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the same terms as Perl itself.
9 *******************************************************************************/
15 #define NEED_sv_2pv_flags
16 #define NEED_sv_pvn_force_flags
19 #include <sys/types.h>
21 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
29 # if defined(PERL_SCO) || defined(PERL_ISC)
30 # include <sys/sysmacros.h> /* SHMLBA */
33 # ifndef HAS_SHMAT_PROTOTYPE
34 extern Shmat_t shmat(int, char *, int);
36 # if defined(HAS_SYSCONF) && defined(_SC_PAGESIZE)
37 # undef SHMLBA /* not static: determined at boot time */
38 # define SHMLBA sysconf(_SC_PAGESIZE)
39 # elif defined(HAS_GETPAGESIZE)
40 # undef SHMLBA /* not static: determined at boot time */
41 # define SHMLBA getpagesize()
46 /* Required to get 'struct pte' for SHMLBA on ULTRIX. */
47 #if defined(__ultrix) || defined(__ultrix__) || defined(ultrix)
48 #include <machine/pte.h>
51 /* Required in BSDI to get PAGE_SIZE definition for SHMLBA.
52 * Ugly. More beautiful solutions welcome.
53 * Shouting at BSDI sounds quite beautiful. */
55 # include <vm/vm_param.h> /* move upwards under HAS_SHM? */
60 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
61 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
62 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
70 #define AV_FETCH_IV(ident, av, index) \
73 if ((svp = av_fetch((av), (index), FALSE)) != NULL) \
77 #define AV_STORE_IV(ident, av, index) \
78 av_store((av), (index), newSViv(ident))
80 static const char *s_fmt_not_isa = "Method %s not called a %s object";
81 static const char *s_bad_length = "Bad arg length for %s, length is %d, should be %d";
82 static const char *s_sysv_unimpl PERL_UNUSED_DECL
83 = "System V %sxxx is not implemented on this machine";
85 static const char *s_pkg_msg = "IPC::Msg::stat";
86 static const char *s_pkg_sem = "IPC::Semaphore::stat";
87 static const char *s_pkg_shm = "IPC::SharedMem::stat";
89 static void *sv2addr(SV *sv)
91 if (SvPOK(sv) && SvCUR(sv) == sizeof(void *))
93 return *((void **) SvPVX(sv));
96 croak("invalid address value");
101 static void assert_sv_isa(SV *sv, const char *name, const char *method)
103 if (!sv_isa(sv, name))
105 croak(s_fmt_not_isa, method, name);
109 static void assert_data_length(const char *name, int got, int expected)
113 croak(s_bad_length, name, got, expected);
117 #include "const-c.inc"
120 MODULE=IPC::SysV PACKAGE=IPC::Msg::stat
130 AV *list = (AV*) SvRV(obj);
132 assert_sv_isa(obj, s_pkg_msg, "pack");
133 AV_FETCH_IV(ds.msg_perm.uid , list, 0);
134 AV_FETCH_IV(ds.msg_perm.gid , list, 1);
135 AV_FETCH_IV(ds.msg_perm.cuid, list, 2);
136 AV_FETCH_IV(ds.msg_perm.cgid, list, 3);
137 AV_FETCH_IV(ds.msg_perm.mode, list, 4);
138 AV_FETCH_IV(ds.msg_qnum , list, 5);
139 AV_FETCH_IV(ds.msg_qbytes , list, 6);
140 AV_FETCH_IV(ds.msg_lspid , list, 7);
141 AV_FETCH_IV(ds.msg_lrpid , list, 8);
142 AV_FETCH_IV(ds.msg_stime , list, 9);
143 AV_FETCH_IV(ds.msg_rtime , list, 10);
144 AV_FETCH_IV(ds.msg_ctime , list, 11);
145 ST(0) = sv_2mortal(newSVpvn((char *) &ds, sizeof(ds)));
148 croak(s_sysv_unimpl, "msg");
159 AV *list = (AV*) SvRV(obj);
161 const struct msqid_ds *data = (struct msqid_ds *) SvPV_const(ds, len);
162 assert_sv_isa(obj, s_pkg_msg, "unpack");
163 assert_data_length(s_pkg_msg, len, sizeof(*data));
164 AV_STORE_IV(data->msg_perm.uid , list, 0);
165 AV_STORE_IV(data->msg_perm.gid , list, 1);
166 AV_STORE_IV(data->msg_perm.cuid, list, 2);
167 AV_STORE_IV(data->msg_perm.cgid, list, 3);
168 AV_STORE_IV(data->msg_perm.mode, list, 4);
169 AV_STORE_IV(data->msg_qnum , list, 5);
170 AV_STORE_IV(data->msg_qbytes , list, 6);
171 AV_STORE_IV(data->msg_lspid , list, 7);
172 AV_STORE_IV(data->msg_lrpid , list, 8);
173 AV_STORE_IV(data->msg_stime , list, 9);
174 AV_STORE_IV(data->msg_rtime , list, 10);
175 AV_STORE_IV(data->msg_ctime , list, 11);
178 croak(s_sysv_unimpl, "msg");
183 MODULE=IPC::SysV PACKAGE=IPC::Semaphore::stat
193 AV *list = (AV*) SvRV(obj);
195 assert_sv_isa(obj, s_pkg_sem, "pack");
196 AV_FETCH_IV(ds.sem_perm.uid , list, 0);
197 AV_FETCH_IV(ds.sem_perm.gid , list, 1);
198 AV_FETCH_IV(ds.sem_perm.cuid, list, 2);
199 AV_FETCH_IV(ds.sem_perm.cgid, list, 3);
200 AV_FETCH_IV(ds.sem_perm.mode, list, 4);
201 AV_FETCH_IV(ds.sem_ctime , list, 5);
202 AV_FETCH_IV(ds.sem_otime , list, 6);
203 AV_FETCH_IV(ds.sem_nsems , list, 7);
204 ST(0) = sv_2mortal(newSVpvn((char *) &ds, sizeof(ds)));
207 croak(s_sysv_unimpl, "sem");
218 AV *list = (AV*) SvRV(obj);
220 const struct semid_ds *data = (struct semid_ds *) SvPV_const(ds, len);
221 assert_sv_isa(obj, s_pkg_sem, "unpack");
222 assert_data_length(s_pkg_sem, len, sizeof(*data));
223 AV_STORE_IV(data->sem_perm.uid , list, 0);
224 AV_STORE_IV(data->sem_perm.gid , list, 1);
225 AV_STORE_IV(data->sem_perm.cuid, list, 2);
226 AV_STORE_IV(data->sem_perm.cgid, list, 3);
227 AV_STORE_IV(data->sem_perm.mode, list, 4);
228 AV_STORE_IV(data->sem_ctime , list, 5);
229 AV_STORE_IV(data->sem_otime , list, 6);
230 AV_STORE_IV(data->sem_nsems , list, 7);
233 croak(s_sysv_unimpl, "sem");
238 MODULE=IPC::SysV PACKAGE=IPC::SharedMem::stat
248 AV *list = (AV*) SvRV(obj);
250 assert_sv_isa(obj, s_pkg_shm, "pack");
251 AV_FETCH_IV(ds.shm_perm.uid , list, 0);
252 AV_FETCH_IV(ds.shm_perm.gid , list, 1);
253 AV_FETCH_IV(ds.shm_perm.cuid, list, 2);
254 AV_FETCH_IV(ds.shm_perm.cgid, list, 3);
255 AV_FETCH_IV(ds.shm_perm.mode, list, 4);
256 AV_FETCH_IV(ds.shm_segsz , list, 5);
257 AV_FETCH_IV(ds.shm_lpid , list, 6);
258 AV_FETCH_IV(ds.shm_cpid , list, 7);
259 AV_FETCH_IV(ds.shm_nattch , list, 8);
260 AV_FETCH_IV(ds.shm_atime , list, 9);
261 AV_FETCH_IV(ds.shm_dtime , list, 10);
262 AV_FETCH_IV(ds.shm_ctime , list, 11);
263 ST(0) = sv_2mortal(newSVpvn((char *) &ds, sizeof(ds)));
266 croak(s_sysv_unimpl, "shm");
277 AV *list = (AV*) SvRV(obj);
279 const struct shmid_ds *data = (struct shmid_ds *) SvPV_const(ds, len);
280 assert_sv_isa(obj, s_pkg_shm, "unpack");
281 assert_data_length(s_pkg_shm, len, sizeof(*data));
282 AV_STORE_IV(data->shm_perm.uid , list, 0);
283 AV_STORE_IV(data->shm_perm.gid , list, 1);
284 AV_STORE_IV(data->shm_perm.cuid, list, 2);
285 AV_STORE_IV(data->shm_perm.cgid, list, 3);
286 AV_STORE_IV(data->shm_perm.mode, list, 4);
287 AV_STORE_IV(data->shm_segsz , list, 5);
288 AV_STORE_IV(data->shm_lpid , list, 6);
289 AV_STORE_IV(data->shm_cpid , list, 7);
290 AV_STORE_IV(data->shm_nattch , list, 8);
291 AV_STORE_IV(data->shm_atime , list, 9);
292 AV_STORE_IV(data->shm_dtime , list, 10);
293 AV_STORE_IV(data->shm_ctime , list, 11);
296 croak(s_sysv_unimpl, "shm");
301 MODULE=IPC::SysV PACKAGE=IPC::SysV
306 ftok(path, id = &PL_sv_undef)
313 #if defined(HAS_SEM) || defined(HAS_SHM)
318 proj_id = (int) SvIVX(id);
320 else if (SvPOK(id) && SvCUR(id) == sizeof(char))
322 proj_id = (int) *SvPVX(id);
326 croak("invalid project id");
329 /* Including <sys/types.h> before <sys/ipc.h> makes Tru64
330 * to see the obsolete prototype of ftok() first, grumble. */
332 # define Ftok_t char*
333 /* Configure TODO Ftok_t */
336 # define Ftok_t const char*
338 k = ftok((Ftok_t)path, proj_id);
339 ST(0) = k == (key_t) -1 ? &PL_sv_undef : sv_2mortal(newSViv(k));
342 Perl_die(aTHX_ PL_no_func, "ftok"); return;
346 memread(addr, sv, pos, size)
352 char *caddr = (char *) sv2addr(addr);
356 sv_setpvn(sv, "", 0);
358 SvPV_force_nolen(sv);
359 dst = SvGROW(sv, (STRLEN) size + 1);
360 Copy(caddr + pos, dst, size, char);
364 #ifndef INCOMPLETE_TAINTS
365 /* who knows who has been playing with this memory? */
371 memwrite(addr, sv, pos, size)
377 char *caddr = (char *) sv2addr(addr);
379 const char *src = SvPV_const(sv, len);
380 int n = ((int) len > size) ? size : (int) len;
381 Copy(src, caddr + pos, n, char);
384 memzero(caddr + pos + n, size - n);
389 shmat(id, addr, flag)
395 void *caddr = SvOK(addr) ? sv2addr(addr) : NULL;
396 void *shm = (void *) shmat(id, caddr, flag);
397 ST(0) = shm == (void *) -1 ? &PL_sv_undef
398 : sv_2mortal(newSVpvn((char *) &shm, sizeof(void *)));
401 Perl_die(aTHX_ PL_no_func, "shmat"); return;
409 void *caddr = sv2addr(addr);
410 int rv = shmdt((Shmat_t)caddr);
411 ST(0) = rv == -1 ? &PL_sv_undef : sv_2mortal(newSViv(rv));
414 Perl_die(aTHX_ PL_no_func, "shmdt"); return;
417 INCLUDE: const-xs.inc