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Comparing BDB/BDB.xs (file contents):
Revision 1.16 by root, Mon Aug 13 12:01:45 2007 UTC vs.
Revision 1.36 by root, Sun Mar 30 08:01:58 2008 UTC

… …
40typedef DB_TXN DB_TXN_ornull; 40typedef DB_TXN DB_TXN_ornull;
41typedef DBC DBC_ornull; 41typedef DBC DBC_ornull;
42typedef DB DB_ornull; 42typedef DB DB_ornull;
43typedef DB_SEQUENCE DB_SEQUENCE_ornull; 43typedef DB_SEQUENCE DB_SEQUENCE_ornull;
44 44
45typedef DB_ENV DB_ENV_ornuked;
46typedef DB_TXN DB_TXN_ornuked;
47typedef DBC DBC_ornuked;
48typedef DB DB_ornuked;
49typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
50
45typedef SV SV8; /* byte-sv, used for argument-checking */ 51typedef SV SV8; /* byte-sv, used for argument-checking */
46typedef char *octetstring; 52typedef char *bdb_filename;
47 53
48static SV *prepare_cb; 54static SV *prepare_cb;
49 55
50#if DB_VERSION_MINOR >= 6 56#if DB_VERSION_MINOR >= 6
51# define c_close close 57# define c_close close
… …
55# define c_get get 61# define c_get get
56# define c_pget pget 62# define c_pget pget
57# define c_put put 63# define c_put put
58#endif 64#endif
59 65
66static char *
67get_bdb_filename (SV *sv)
68{
69 if (!SvOK (sv))
70 return 0;
71
72#if _WIN32
73 /* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
74 {
75 STRLEN len;
76 char *src = SvPVbyte (sv, len);
77 SV *t1 = sv_newmortal ();
78 SV *t2 = sv_newmortal ();
79
80 sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
81 sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
82
83 len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
84 len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
85 SvPOK_only (t2);
86 SvPVX (t2)[len] = 0;
87 SvCUR_set (t2, len);
88
89 return SvPVX (t2);
90 }
91#else
92 return SvPVbyte_nolen (sv);
93#endif
94}
95
60static void 96static void
61debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg) 97debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
62{ 98{
63 printf ("err[%s]\n", msg); 99 printf ("err[%s]\n", msg);
64} 100}
… …
102 138
103enum { 139enum {
104 REQ_QUIT, 140 REQ_QUIT,
105 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT, 141 REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
106 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, 142 REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
107 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, 143 REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_UPGRADE,
108 REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE, 144 REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
109 REQ_TXN_COMMIT, REQ_TXN_ABORT, 145 REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
110 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL, 146 REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
111 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE, 147 REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
112}; 148};
113 149
114typedef struct aio_cb 150typedef struct bdb_cb
115{ 151{
116 struct aio_cb *volatile next; 152 struct bdb_cb *volatile next;
117 SV *callback; 153 SV *callback;
118 int type, pri, result; 154 int type, pri, result;
119 155
120 DB_ENV *env; 156 DB_ENV *env;
121 DB *db; 157 DB *db;
… …
130 166
131 DBT dbt1, dbt2, dbt3; 167 DBT dbt1, dbt2, dbt3;
132 DB_KEY_RANGE key_range; 168 DB_KEY_RANGE key_range;
133 DB_SEQUENCE *seq; 169 DB_SEQUENCE *seq;
134 db_seq_t seq_t; 170 db_seq_t seq_t;
135} aio_cb; 171} bdb_cb;
136 172
137typedef aio_cb *aio_req; 173typedef bdb_cb *bdb_req;
138 174
139enum { 175enum {
140 PRI_MIN = -4, 176 PRI_MIN = -4,
141 PRI_MAX = 4, 177 PRI_MAX = 4,
142 178
… …
169 struct worker *prev, *next; 205 struct worker *prev, *next;
170 206
171 thread_t tid; 207 thread_t tid;
172 208
173 /* locked by reslock, reqlock or wrklock */ 209 /* locked by reslock, reqlock or wrklock */
174 aio_req req; /* currently processed request */ 210 bdb_req req; /* currently processed request */
175 void *dbuf; 211 void *dbuf;
176 DIR *dirp; 212 DIR *dirp;
177} worker; 213} worker;
178 214
179static worker wrk_first = { &wrk_first, &wrk_first, 0 }; 215static worker wrk_first = { &wrk_first, &wrk_first, 0 };
… …
191} 227}
192 228
193static volatile unsigned int nreqs, nready, npending; 229static volatile unsigned int nreqs, nready, npending;
194static volatile unsigned int max_idle = 4; 230static volatile unsigned int max_idle = 4;
195static volatile unsigned int max_outstanding = 0xffffffff; 231static volatile unsigned int max_outstanding = 0xffffffff;
196static int respipe [2], respipe_osf [2]; 232static int respipe_osf [2], respipe [2] = { -1, -1 };
197 233
198static mutex_t reslock = X_MUTEX_INIT; 234static mutex_t reslock = X_MUTEX_INIT;
199static mutex_t reqlock = X_MUTEX_INIT; 235static mutex_t reqlock = X_MUTEX_INIT;
200static cond_t reqwait = X_COND_INIT; 236static cond_t reqwait = X_COND_INIT;
201 237
202#if WORDACCESS_UNSAFE 238#if WORDACCESS_UNSAFE
203 239
204static unsigned int get_nready () 240static unsigned int get_nready (void)
205{ 241{
206 unsigned int retval; 242 unsigned int retval;
207 243
208 X_LOCK (reqlock); 244 X_LOCK (reqlock);
209 retval = nready; 245 retval = nready;
210 X_UNLOCK (reqlock); 246 X_UNLOCK (reqlock);
211 247
212 return retval; 248 return retval;
213} 249}
214 250
215static unsigned int get_npending () 251static unsigned int get_npending (void)
216{ 252{
217 unsigned int retval; 253 unsigned int retval;
218 254
219 X_LOCK (reslock); 255 X_LOCK (reslock);
220 retval = npending; 256 retval = npending;
221 X_UNLOCK (reslock); 257 X_UNLOCK (reslock);
222 258
223 return retval; 259 return retval;
224} 260}
225 261
226static unsigned int get_nthreads () 262static unsigned int get_nthreads (void)
227{ 263{
228 unsigned int retval; 264 unsigned int retval;
229 265
230 X_LOCK (wrklock); 266 X_LOCK (wrklock);
231 retval = started; 267 retval = started;
… …
246 * a somewhat faster data structure might be nice, but 282 * a somewhat faster data structure might be nice, but
247 * with 8 priorities this actually needs <20 insns 283 * with 8 priorities this actually needs <20 insns
248 * per shift, the most expensive operation. 284 * per shift, the most expensive operation.
249 */ 285 */
250typedef struct { 286typedef struct {
251 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ 287 bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
252 int size; 288 int size;
253} reqq; 289} reqq;
254 290
255static reqq req_queue; 291static reqq req_queue;
256static reqq res_queue; 292static reqq res_queue;
257 293
258int reqq_push (reqq *q, aio_req req) 294int reqq_push (reqq *q, bdb_req req)
259{ 295{
260 int pri = req->pri; 296 int pri = req->pri;
261 req->next = 0; 297 req->next = 0;
262 298
263 if (q->qe[pri]) 299 if (q->qe[pri])
… …
269 q->qe[pri] = q->qs[pri] = req; 305 q->qe[pri] = q->qs[pri] = req;
270 306
271 return q->size++; 307 return q->size++;
272} 308}
273 309
274aio_req reqq_shift (reqq *q) 310bdb_req reqq_shift (reqq *q)
275{ 311{
276 int pri; 312 int pri;
277 313
278 if (!q->size) 314 if (!q->size)
279 return 0; 315 return 0;
280 316
281 --q->size; 317 --q->size;
282 318
283 for (pri = NUM_PRI; pri--; ) 319 for (pri = NUM_PRI; pri--; )
284 { 320 {
285 aio_req req = q->qs[pri]; 321 bdb_req req = q->qs[pri];
286 322
287 if (req) 323 if (req)
288 { 324 {
289 if (!(q->qs[pri] = req->next)) 325 if (!(q->qs[pri] = req->next))
290 q->qe[pri] = 0; 326 q->qe[pri] = 0;
… …
294 } 330 }
295 331
296 abort (); 332 abort ();
297} 333}
298 334
299static int poll_cb (); 335static int poll_cb (void);
300static void req_free (aio_req req); 336static void req_free (bdb_req req);
301static void req_cancel (aio_req req); 337static void req_cancel (bdb_req req);
302 338
303static int req_invoke (aio_req req) 339static int req_invoke (bdb_req req)
304{ 340{
305 dSP; 341 dSP;
306 342
307 if (SvOK (req->callback)) 343 if (SvOK (req->callback))
308 { 344 {
… …
326 dbt_to_sv (req->sv1, &req->dbt1); 362 dbt_to_sv (req->sv1, &req->dbt1);
327 dbt_to_sv (req->sv2, &req->dbt2); 363 dbt_to_sv (req->sv2, &req->dbt2);
328 dbt_to_sv (req->sv3, &req->dbt3); 364 dbt_to_sv (req->sv3, &req->dbt3);
329 break; 365 break;
330 366
367 case REQ_DB_PUT:
368 case REQ_C_PUT:
369 dbt_to_sv (0, &req->dbt1);
370 dbt_to_sv (0, &req->dbt2);
371 break;
372
331 case REQ_DB_KEY_RANGE: 373 case REQ_DB_KEY_RANGE:
332 { 374 {
333 AV *av = newAV (); 375 AV *av = newAV ();
334 376
335 av_push (av, newSVnv (req->key_range.less)); 377 av_push (av, newSVnv (req->key_range.less));
… …
344 386
345 case REQ_SEQ_GET: 387 case REQ_SEQ_GET:
346 SvREADONLY_off (req->sv1); 388 SvREADONLY_off (req->sv1);
347 389
348 if (sizeof (IV) > 4) 390 if (sizeof (IV) > 4)
349 sv_setiv_mg (req->sv1, req->seq_t); 391 sv_setiv_mg (req->sv1, (IV)req->seq_t);
350 else 392 else
351 sv_setnv_mg (req->sv1, req->seq_t); 393 sv_setnv_mg (req->sv1, (NV)req->seq_t);
352 394
353 SvREFCNT_dec (req->sv1); 395 SvREFCNT_dec (req->sv1);
354 break; 396 break;
355 } 397 }
356 398
… …
365 } 407 }
366 408
367 return !SvTRUE (ERRSV); 409 return !SvTRUE (ERRSV);
368} 410}
369 411
370static void req_free (aio_req req) 412static void req_free (bdb_req req)
371{ 413{
372 free (req->buf1); 414 free (req->buf1);
373 free (req->buf2); 415 free (req->buf2);
374 Safefree (req); 416 Safefree (req);
375} 417}
… …
379#else 421#else
380# define TO_SOCKET(x) (x) 422# define TO_SOCKET(x) (x)
381#endif 423#endif
382 424
383static void 425static void
384create_pipe (int fd[2]) 426create_respipe (void)
385{ 427{
386#ifdef _WIN32 428#ifdef _WIN32
387 int arg = 1; 429 int arg; /* argg */
430#endif
431 int old_readfd = respipe [0];
432
433 if (respipe [1] >= 0)
434 respipe_close (TO_SOCKET (respipe [1]));
435
436#ifdef _WIN32
388 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd) 437 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
389 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
390 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
391#else 438#else
392 if (pipe (fd) 439 if (pipe (respipe))
393 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
394 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
395#endif 440#endif
396 croak ("unable to initialize result pipe"); 441 croak ("unable to initialize result pipe");
442
443 if (old_readfd >= 0)
444 {
445 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
446 croak ("unable to initialize result pipe(2)");
447
448 respipe_close (respipe [0]);
449 respipe [0] = old_readfd;
450 }
451
452#ifdef _WIN32
453 arg = 1;
454 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
455 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
456#else
457 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
458 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
459#endif
460 croak ("unable to initialize result pipe(3)");
397 461
398 respipe_osf [0] = TO_SOCKET (respipe [0]); 462 respipe_osf [0] = TO_SOCKET (respipe [0]);
399 respipe_osf [1] = TO_SOCKET (respipe [1]); 463 respipe_osf [1] = TO_SOCKET (respipe [1]);
400} 464}
401 465
… …
421 free (wrk); 485 free (wrk);
422 486
423 X_UNLOCK (wrklock); 487 X_UNLOCK (wrklock);
424} 488}
425 489
426static void maybe_start_thread () 490static void maybe_start_thread (void)
427{ 491{
428 if (get_nthreads () >= wanted) 492 if (get_nthreads () >= wanted)
429 return; 493 return;
430 494
431 /* todo: maybe use idle here, but might be less exact */ 495 /* todo: maybe use idle here, but might be less exact */
… …
433 return; 497 return;
434 498
435 start_thread (); 499 start_thread ();
436} 500}
437 501
438static void req_send (aio_req req) 502static void req_send (bdb_req req)
439{ 503{
440 SV *wait_callback = 0; 504 SV *wait_callback = 0;
441 505
442 // synthesize callback if none given 506 // synthesize callback if none given
443 if (!SvOK (req->callback)) 507 if (!SvOK (req->callback))
… …
451 SPAGAIN; 515 SPAGAIN;
452 516
453 if (count != 2) 517 if (count != 2)
454 croak ("prepare callback must return exactly two values\n"); 518 croak ("prepare callback must return exactly two values\n");
455 519
456 wait_callback = SvREFCNT_inc (POPs); 520 wait_callback = POPs;
457 SvREFCNT_dec (req->callback); 521 SvREFCNT_dec (req->callback);
458 req->callback = SvREFCNT_inc (POPs); 522 req->callback = SvREFCNT_inc (POPs);
459 } 523 }
460 524
461 ++nreqs; 525 ++nreqs;
… …
472 { 536 {
473 dSP; 537 dSP;
474 PUSHMARK (SP); 538 PUSHMARK (SP);
475 PUTBACK; 539 PUTBACK;
476 call_sv (wait_callback, G_DISCARD); 540 call_sv (wait_callback, G_DISCARD);
477 SvREFCNT_dec (wait_callback);
478 } 541 }
479} 542}
480 543
481static void end_thread (void) 544static void end_thread (void)
482{ 545{
483 aio_req req; 546 bdb_req req;
484 547
485 Newz (0, req, 1, aio_cb); 548 Newz (0, req, 1, bdb_cb);
486 549
487 req->type = REQ_QUIT; 550 req->type = REQ_QUIT;
488 req->pri = PRI_MAX + PRI_BIAS; 551 req->pri = PRI_MAX + PRI_BIAS;
489 552
490 X_LOCK (reqlock); 553 X_LOCK (reqlock);
… …
517 580
518 while (started > wanted) 581 while (started > wanted)
519 end_thread (); 582 end_thread ();
520} 583}
521 584
522static void poll_wait () 585static void poll_wait (void)
523{ 586{
524 fd_set rfd; 587 fd_set rfd;
525 588
526 while (nreqs) 589 while (nreqs)
527 { 590 {
… …
540 603
541 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); 604 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
542 } 605 }
543} 606}
544 607
545static int poll_cb () 608static int poll_cb (void)
546{ 609{
547 dSP; 610 dSP;
548 int count = 0; 611 int count = 0;
549 int maxreqs = max_poll_reqs; 612 int maxreqs = max_poll_reqs;
550 int do_croak = 0; 613 int do_croak = 0;
551 struct timeval tv_start, tv_now; 614 struct timeval tv_start, tv_now;
552 aio_req req; 615 bdb_req req;
553 616
554 if (max_poll_time) 617 if (max_poll_time)
555 gettimeofday (&tv_start, 0); 618 gettimeofday (&tv_start, 0);
556 619
557 for (;;) 620 for (;;)
… …
618 681
619/*****************************************************************************/ 682/*****************************************************************************/
620 683
621X_THREAD_PROC (bdb_proc) 684X_THREAD_PROC (bdb_proc)
622{ 685{
623 aio_req req; 686 bdb_req req;
624 struct timespec ts; 687 struct timespec ts;
625 worker *self = (worker *)thr_arg; 688 worker *self = (worker *)thr_arg;
626 689
627 /* try to distribute timeouts somewhat evenly */ 690 /* try to distribute timeouts somewhat evenly */
628 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); 691 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
… …
668 X_UNLOCK (reqlock); 731 X_UNLOCK (reqlock);
669 732
670 switch (req->type) 733 switch (req->type)
671 { 734 {
672 case REQ_QUIT: 735 case REQ_QUIT:
736 req->result = ENOSYS;
673 goto quit; 737 goto quit;
674 738
675 case REQ_ENV_OPEN: 739 case REQ_ENV_OPEN:
676 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1); 740 req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
677 break; 741 break;
… …
710 774
711 case REQ_DB_SYNC: 775 case REQ_DB_SYNC:
712 req->result = req->db->sync (req->db, req->uint1); 776 req->result = req->db->sync (req->db, req->uint1);
713 break; 777 break;
714 778
779 case REQ_DB_UPGRADE:
780 req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
781 break;
782
715 case REQ_DB_PUT: 783 case REQ_DB_PUT:
716 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1); 784 req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
717 break; 785 break;
718 786
719 case REQ_DB_GET: 787 case REQ_DB_GET:
… …
736 req->result = req->txn->commit (req->txn, req->uint1); 804 req->result = req->txn->commit (req->txn, req->uint1);
737 break; 805 break;
738 806
739 case REQ_TXN_ABORT: 807 case REQ_TXN_ABORT:
740 req->result = req->txn->abort (req->txn); 808 req->result = req->txn->abort (req->txn);
809 break;
810
811 case REQ_TXN_FINISH:
812 if (req->txn->flags & TXN_DEADLOCK)
813 {
814 req->result = req->txn->abort (req->txn);
815 if (!req->result)
816 req->result = DB_LOCK_DEADLOCK;
817 }
818 else
819 req->result = req->txn->commit (req->txn, req->uint1);
741 break; 820 break;
742 821
743 case REQ_C_CLOSE: 822 case REQ_C_CLOSE:
744 req->result = req->dbc->c_close (req->dbc); 823 req->result = req->dbc->c_close (req->dbc);
745 break; 824 break;
… …
787 default: 866 default:
788 req->result = ENOSYS; 867 req->result = ENOSYS;
789 break; 868 break;
790 } 869 }
791 870
871 if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
872 req->txn->flags |= TXN_DEADLOCK;
873
792 X_LOCK (reslock); 874 X_LOCK (reslock);
793 875
794 ++npending; 876 ++npending;
795 877
796 if (!reqq_push (&res_queue, req)) 878 if (!reqq_push (&res_queue, req))
… …
827 X_UNLOCK (wrklock); 909 X_UNLOCK (wrklock);
828} 910}
829 911
830static void atfork_child (void) 912static void atfork_child (void)
831{ 913{
832 aio_req prv; 914 bdb_req prv;
833 915
834 while (prv = reqq_shift (&req_queue)) 916 while (prv = reqq_shift (&req_queue))
835 req_free (prv); 917 req_free (prv);
836 918
837 while (prv = reqq_shift (&res_queue)) 919 while (prv = reqq_shift (&res_queue))
… …
852 idle = 0; 934 idle = 0;
853 nreqs = 0; 935 nreqs = 0;
854 nready = 0; 936 nready = 0;
855 npending = 0; 937 npending = 0;
856 938
857 respipe_close (respipe [0]);
858 respipe_close (respipe [1]);
859
860 create_pipe (respipe); 939 create_respipe ();
861 940
862 atfork_parent (); 941 atfork_parent ();
863} 942}
864 943
865#define dREQ(reqtype) \ 944#define dREQ(reqtype) \
866 aio_req req; \ 945 bdb_req req; \
867 int req_pri = next_pri; \ 946 int req_pri = next_pri; \
868 next_pri = DEFAULT_PRI + PRI_BIAS; \ 947 next_pri = DEFAULT_PRI + PRI_BIAS; \
869 \ 948 \
870 if (SvOK (callback) && !SvROK (callback)) \ 949 if (SvOK (callback) && !SvROK (callback)) \
871 croak ("callback must be undef or of reference type"); \ 950 croak ("callback must be undef or of reference type"); \
872 \ 951 \
873 Newz (0, req, 1, aio_cb); \ 952 Newz (0, req, 1, bdb_cb); \
874 if (!req) \ 953 if (!req) \
875 croak ("out of memory during aio_req allocation"); \ 954 croak ("out of memory during bdb_req allocation"); \
876 \ 955 \
877 req->callback = newSVsv (callback); \ 956 req->callback = newSVsv (callback); \
878 req->type = (reqtype); \ 957 req->type = (reqtype); \
879 req->pri = req_pri 958 req->pri = req_pri
880 959
881#define REQ_SEND \ 960#define REQ_SEND \
882 req_send (req) 961 req_send (req)
883 962
884#define SvPTR(var, arg, type, class, nullok) \ 963#define SvPTR(var, arg, type, class, nullok) \
885 if (!SvOK (arg)) \ 964 if (!SvOK (arg)) \
886 { \ 965 { \
887 if (!nullok) \ 966 if (nullok != 1) \
888 croak (# var " must be a " # class " object, not undef"); \ 967 croak (# var " must be a " # class " object, not undef"); \
889 \ 968 \
890 (var) = 0; \ 969 (var) = 0; \
891 } \ 970 } \
892 else if (sv_derived_from ((arg), # class)) \ 971 else if (sv_derived_from ((arg), # class)) \
893 { \ 972 { \
894 IV tmp = SvIV ((SV*) SvRV (arg)); \ 973 IV tmp = SvIV ((SV*) SvRV (arg)); \
895 (var) = INT2PTR (type, tmp); \ 974 (var) = INT2PTR (type, tmp); \
896 if (!var) \ 975 if (!var && nullok != 2) \
897 croak (# var " is not a valid " # class " object anymore"); \ 976 croak (# var " is not a valid " # class " object anymore"); \
898 } \ 977 } \
899 else \ 978 else \
900 croak (# var " is not of type " # class); \ 979 croak (# var " is not of type " # class); \
901 \ 980 \
… …
903static void 982static void
904ptr_nuke (SV *sv) 983ptr_nuke (SV *sv)
905{ 984{
906 assert (SvROK (sv)); 985 assert (SvROK (sv));
907 sv_setiv (SvRV (sv), 0); 986 sv_setiv (SvRV (sv), 0);
987}
988
989static int
990errno_get (pTHX_ SV *sv, MAGIC *mg)
991{
992 if (*mg->mg_ptr == '!') // should always be the case
993 if (-30999 <= errno && errno <= -30800)
994 {
995 sv_setnv (sv, (NV)errno);
996 sv_setpv (sv, db_strerror (errno));
997 SvNOK_on (sv); /* what a wonderful hack! */
998 // ^^^ copied from perl sources
999 return 0;
1000 }
1001
1002 return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
1003}
1004
1005static MGVTBL vtbl_errno;
1006
1007// this wonderful hack :( patches perl's $! variable to support our errno values
1008static void
1009patch_errno (void)
1010{
1011 SV *sv;
1012 MAGIC *mg;
1013
1014 if (!(sv = get_sv ("!", 1)))
1015 return;
1016
1017 if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
1018 return;
1019
1020 if (mg->mg_virtual != &PL_vtbl_sv)
1021 return;
1022
1023 vtbl_errno = PL_vtbl_sv;
1024 vtbl_errno.svt_get = errno_get;
1025 mg->mg_virtual = &vtbl_errno;
908} 1026}
909 1027
910MODULE = BDB PACKAGE = BDB 1028MODULE = BDB PACKAGE = BDB
911 1029
912PROTOTYPES: ENABLE 1030PROTOTYPES: ENABLE
… …
929 const_iv (INIT_TXN) 1047 const_iv (INIT_TXN)
930 const_iv (RECOVER) 1048 const_iv (RECOVER)
931 const_iv (INIT_TXN) 1049 const_iv (INIT_TXN)
932 const_iv (RECOVER_FATAL) 1050 const_iv (RECOVER_FATAL)
933 const_iv (CREATE) 1051 const_iv (CREATE)
1052 const_iv (RDONLY)
934 const_iv (USE_ENVIRON) 1053 const_iv (USE_ENVIRON)
935 const_iv (USE_ENVIRON_ROOT) 1054 const_iv (USE_ENVIRON_ROOT)
936 const_iv (LOCKDOWN) 1055 const_iv (LOCKDOWN)
937 const_iv (PRIVATE) 1056 const_iv (PRIVATE)
938 const_iv (REGISTER) 1057 const_iv (REGISTER)
… …
951 const_iv (OVERWRITE) 1070 const_iv (OVERWRITE)
952 const_iv (PANIC_ENVIRONMENT) 1071 const_iv (PANIC_ENVIRONMENT)
953 const_iv (REGION_INIT) 1072 const_iv (REGION_INIT)
954 const_iv (TIME_NOTGRANTED) 1073 const_iv (TIME_NOTGRANTED)
955 const_iv (TXN_NOSYNC) 1074 const_iv (TXN_NOSYNC)
1075 const_iv (TXN_NOT_DURABLE)
956 const_iv (TXN_WRITE_NOSYNC) 1076 const_iv (TXN_WRITE_NOSYNC)
957 const_iv (WRITECURSOR) 1077 const_iv (WRITECURSOR)
958 const_iv (YIELDCPU) 1078 const_iv (YIELDCPU)
959 const_iv (ENCRYPT_AES) 1079 const_iv (ENCRYPT_AES)
960 const_iv (XA_CREATE) 1080 const_iv (XA_CREATE)
… …
968 const_iv (READ_UNCOMMITTED) 1088 const_iv (READ_UNCOMMITTED)
969 const_iv (TRUNCATE) 1089 const_iv (TRUNCATE)
970 const_iv (NOSYNC) 1090 const_iv (NOSYNC)
971 const_iv (CHKSUM) 1091 const_iv (CHKSUM)
972 const_iv (ENCRYPT) 1092 const_iv (ENCRYPT)
973 const_iv (TXN_NOT_DURABLE)
974 const_iv (DUP) 1093 const_iv (DUP)
975 const_iv (DUPSORT) 1094 const_iv (DUPSORT)
976 const_iv (RECNUM) 1095 const_iv (RECNUM)
977 const_iv (RENUMBER) 1096 const_iv (RENUMBER)
978 const_iv (REVSPLITOFF) 1097 const_iv (REVSPLITOFF)
… …
983 const_iv (GET_BOTH_RANGE) 1102 const_iv (GET_BOTH_RANGE)
984 //const_iv (SET_RECNO) 1103 //const_iv (SET_RECNO)
985 //const_iv (MULTIPLE) 1104 //const_iv (MULTIPLE)
986 const_iv (SNAPSHOT) 1105 const_iv (SNAPSHOT)
987 const_iv (JOIN_ITEM) 1106 const_iv (JOIN_ITEM)
1107 const_iv (JOIN_NOSORT)
988 const_iv (RMW) 1108 const_iv (RMW)
989 1109
990 const_iv (NOTFOUND) 1110 const_iv (NOTFOUND)
991 const_iv (KEYEMPTY) 1111 const_iv (KEYEMPTY)
992 const_iv (LOCK_DEADLOCK) 1112 const_iv (LOCK_DEADLOCK)
… …
1008 const_iv (TXN_SYNC) 1128 const_iv (TXN_SYNC)
1009 1129
1010 const_iv (SET_LOCK_TIMEOUT) 1130 const_iv (SET_LOCK_TIMEOUT)
1011 const_iv (SET_TXN_TIMEOUT) 1131 const_iv (SET_TXN_TIMEOUT)
1012 1132
1013 const_iv (JOIN_ITEM)
1014 const_iv (FIRST) 1133 const_iv (FIRST)
1015 const_iv (NEXT) 1134 const_iv (NEXT)
1016 const_iv (NEXT_DUP) 1135 const_iv (NEXT_DUP)
1017 const_iv (NEXT_NODUP) 1136 const_iv (NEXT_NODUP)
1018 const_iv (PREV) 1137 const_iv (PREV)
… …
1052 const_iv (LOG_BUFFER_FULL) 1171 const_iv (LOG_BUFFER_FULL)
1053 const_iv (NOSERVER) 1172 const_iv (NOSERVER)
1054 const_iv (NOSERVER_HOME) 1173 const_iv (NOSERVER_HOME)
1055 const_iv (NOSERVER_ID) 1174 const_iv (NOSERVER_ID)
1056 const_iv (NOTFOUND) 1175 const_iv (NOTFOUND)
1057 const_iv (OLD_VERSION)
1058 const_iv (PAGE_NOTFOUND) 1176 const_iv (PAGE_NOTFOUND)
1059 const_iv (REP_DUPMASTER) 1177 const_iv (REP_DUPMASTER)
1060 const_iv (REP_HANDLE_DEAD) 1178 const_iv (REP_HANDLE_DEAD)
1061 const_iv (REP_HOLDELECTION) 1179 const_iv (REP_HOLDELECTION)
1062 const_iv (REP_IGNORE) 1180 const_iv (REP_IGNORE)
… …
1085 const_iv (MULTIVERSION) 1203 const_iv (MULTIVERSION)
1086 const_iv (TXN_SNAPSHOT) 1204 const_iv (TXN_SNAPSHOT)
1087#endif 1205#endif
1088#if DB_VERSION_MINOR >= 6 1206#if DB_VERSION_MINOR >= 6
1089 const_iv (PREV_DUP) 1207 const_iv (PREV_DUP)
1090# if 0
1091 const_iv (PRIORITY_UNCHANGED) 1208 const_iv (PRIORITY_UNCHANGED)
1092 const_iv (PRIORITY_VERY_LOW) 1209 const_iv (PRIORITY_VERY_LOW)
1093 const_iv (PRIORITY_LOW) 1210 const_iv (PRIORITY_LOW)
1094 const_iv (PRIORITY_DEFAULT) 1211 const_iv (PRIORITY_DEFAULT)
1095 const_iv (PRIORITY_HIGH) 1212 const_iv (PRIORITY_HIGH)
1096 const_iv (PRIORITY_VERY_HIGH) 1213 const_iv (PRIORITY_VERY_HIGH)
1097# endif
1098#endif 1214#endif
1099 }; 1215 };
1100 1216
1101 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 1217 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1102 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 1218 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1103 1219
1104 newCONSTSUB (stash, "DB_VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1)); 1220 newCONSTSUB (stash, "VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
1105 newCONSTSUB (stash, "DB_VERSION_STRING", newSVpv (DB_VERSION_STRING, 0)); 1221 newCONSTSUB (stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
1106 1222
1107 create_pipe (respipe); 1223 create_respipe ();
1108 1224
1109 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1225 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1110#ifdef _WIN32 1226#ifdef _WIN32
1111 X_MUTEX_CHECK (wrklock); 1227 X_MUTEX_CHECK (wrklock);
1112 X_MUTEX_CHECK (reslock); 1228 X_MUTEX_CHECK (reslock);
1113 X_MUTEX_CHECK (reqlock); 1229 X_MUTEX_CHECK (reqlock);
1114 1230
1115 X_COND_CHECK (reqwait); 1231 X_COND_CHECK (reqwait);
1116#endif 1232#endif
1233 patch_errno ();
1117} 1234}
1118 1235
1119void 1236void
1120max_poll_reqs (int nreqs) 1237max_poll_reqs (int nreqs)
1121 PROTOTYPE: $ 1238 PROTOTYPE: $
… …
1279} 1396}
1280 OUTPUT: 1397 OUTPUT:
1281 RETVAL 1398 RETVAL
1282 1399
1283void 1400void
1284db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef) 1401db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
1285 CODE: 1402 CODE:
1286{ 1403{
1287 dREQ (REQ_ENV_OPEN); 1404 dREQ (REQ_ENV_OPEN);
1288
1289 env->set_thread_count (env, wanted + 2);
1290 1405
1291 req->env = env; 1406 req->env = env;
1292 req->uint1 = open_flags | DB_THREAD; 1407 req->uint1 = open_flags | DB_THREAD;
1293 req->int1 = mode; 1408 req->int1 = mode;
1294 req->buf1 = strdup_ornull (db_home); 1409 req->buf1 = strdup_ornull (db_home);
… …
1362} 1477}
1363 OUTPUT: 1478 OUTPUT:
1364 RETVAL 1479 RETVAL
1365 1480
1366void 1481void
1367db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef) 1482db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
1368 CODE: 1483 CODE:
1369{ 1484{
1370 dREQ (REQ_DB_OPEN); 1485 dREQ (REQ_DB_OPEN);
1371 req->db = db; 1486 req->db = db;
1372 req->txn = txnid; 1487 req->txn = txnid;
… …
1412 req->uint1 = flags; 1527 req->uint1 = flags;
1413 REQ_SEND; 1528 REQ_SEND;
1414} 1529}
1415 1530
1416void 1531void
1532db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = &PL_sv_undef)
1533 CODE:
1534{
1535 dREQ (REQ_DB_SYNC);
1536 req->db = db;
1537 req->buf1 = strdup (file);
1538 req->uint1 = flags;
1539 REQ_SEND;
1540}
1541
1542void
1417db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef) 1543db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
1418 CODE: 1544 CODE:
1419{ 1545{
1420 dREQ (REQ_DB_KEY_RANGE); 1546 dREQ (REQ_DB_KEY_RANGE);
1421 req->db = db; 1547 req->db = db;
… …
1440} 1566}
1441 1567
1442void 1568void
1443db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 1569db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1444 CODE: 1570 CODE:
1571 if (SvREADONLY (data))
1572 croak ("can't modify read-only data scalar in db_get");
1445{ 1573{
1446 dREQ (REQ_DB_GET); 1574 dREQ (REQ_DB_GET);
1447 req->db = db; 1575 req->db = db;
1448 req->txn = txn; 1576 req->txn = txn;
1449 req->uint1 = flags; 1577 req->uint1 = flags;
… …
1454} 1582}
1455 1583
1456void 1584void
1457db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 1585db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
1458 CODE: 1586 CODE:
1587 if (SvREADONLY (data))
1588 croak ("can't modify read-only data scalar in db_pget");
1459{ 1589{
1460 dREQ (REQ_DB_PGET); 1590 dREQ (REQ_DB_PGET);
1461 req->db = db; 1591 req->db = db;
1462 req->txn = txn; 1592 req->txn = txn;
1463 req->uint1 = flags; 1593 req->uint1 = flags;
… …
1500 REQ_SEND; 1630 REQ_SEND;
1501 ptr_nuke (ST (0)); 1631 ptr_nuke (ST (0));
1502} 1632}
1503 1633
1504void 1634void
1635db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
1636 CODE:
1637{
1638 dREQ (REQ_TXN_FINISH);
1639 req->txn = txn;
1640 req->uint1 = flags;
1641 REQ_SEND;
1642 ptr_nuke (ST (0));
1643}
1644
1645void
1505db_c_close (DBC *dbc, SV *callback = &PL_sv_undef) 1646db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
1506 CODE: 1647 CODE:
1507{ 1648{
1508 dREQ (REQ_C_CLOSE); 1649 dREQ (REQ_C_CLOSE);
1509 req->dbc = dbc; 1650 req->dbc = dbc;
… …
1646 1787
1647 1788
1648MODULE = BDB PACKAGE = BDB::Env 1789MODULE = BDB PACKAGE = BDB::Env
1649 1790
1650void 1791void
1651DESTROY (DB_ENV_ornull *env) 1792DESTROY (DB_ENV_ornuked *env)
1652 CODE: 1793 CODE:
1653 if (env) 1794 if (env)
1654 env->close (env, 0); 1795 env->close (env, 0);
1655 1796
1656int set_data_dir (DB_ENV *env, const char *dir) 1797int set_data_dir (DB_ENV *env, const char *dir)
… …
1681 CODE: 1822 CODE:
1682 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache); 1823 RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
1683 OUTPUT: 1824 OUTPUT:
1684 RETVAL 1825 RETVAL
1685 1826
1686int set_flags (DB_ENV *env, U32 flags, int onoff) 1827int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
1687 CODE: 1828 CODE:
1688 RETVAL = env->set_flags (env, flags, onoff); 1829 RETVAL = env->set_flags (env, flags, onoff);
1689 OUTPUT: 1830 OUTPUT:
1690 RETVAL 1831 RETVAL
1691 1832
… …
1695 1836
1696void set_msgfile (DB_ENV *env, FILE *msgfile = 0) 1837void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
1697 CODE: 1838 CODE:
1698 env->set_msgfile (env, msgfile); 1839 env->set_msgfile (env, msgfile);
1699 1840
1700int set_verbose (DB_ENV *env, U32 which, int onoff = 1) 1841int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
1701 CODE: 1842 CODE:
1702 RETVAL = env->set_verbose (env, which, onoff); 1843 RETVAL = env->set_verbose (env, which, onoff);
1703 OUTPUT: 1844 OUTPUT:
1704 RETVAL 1845 RETVAL
1705 1846
… …
1707 CODE: 1848 CODE:
1708 RETVAL = env->set_encrypt (env, password, flags); 1849 RETVAL = env->set_encrypt (env, password, flags);
1709 OUTPUT: 1850 OUTPUT:
1710 RETVAL 1851 RETVAL
1711 1852
1712int set_timeout (DB_ENV *env, NV timeout, U32 flags) 1853int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1713 CODE: 1854 CODE:
1714 RETVAL = env->set_timeout (env, timeout * 1000000, flags); 1855 RETVAL = env->set_timeout (env, timeout * 1000000, flags);
1715 OUTPUT: 1856 OUTPUT:
1716 RETVAL 1857 RETVAL
1717 1858
… …
1765 1906
1766int set_lg_max (DB_ENV *env, U32 max) 1907int set_lg_max (DB_ENV *env, U32 max)
1767 CODE: 1908 CODE:
1768 RETVAL = env->set_lg_max (env, max); 1909 RETVAL = env->set_lg_max (env, max);
1769 OUTPUT: 1910 OUTPUT:
1911 RETVAL
1912
1913int mutex_set_max (DB_ENV *env, U32 max)
1914 CODE:
1915 RETVAL = env->mutex_set_max (env, max);
1916 OUTPUT:
1917 RETVAL
1918
1919int mutex_set_increment (DB_ENV *env, U32 increment)
1920 CODE:
1921 RETVAL = env->mutex_set_increment (env, increment);
1922 OUTPUT:
1923 RETVAL
1924
1925int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
1926 CODE:
1927 RETVAL = env->mutex_set_tas_spins (env, tas_spins);
1928 OUTPUT:
1929 RETVAL
1930
1931int mutex_set_align (DB_ENV *env, U32 align)
1932 CODE:
1933 RETVAL = env->mutex_set_align (env, align);
1934 OUTPUT:
1770 RETVAL 1935 RETVAL
1771 1936
1772DB_TXN * 1937DB_TXN *
1773txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0) 1938txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
1774 CODE: 1939 CODE:
… …
1779 RETVAL 1944 RETVAL
1780 1945
1781MODULE = BDB PACKAGE = BDB::Db 1946MODULE = BDB PACKAGE = BDB::Db
1782 1947
1783void 1948void
1784DESTROY (DB_ornull *db) 1949DESTROY (DB_ornuked *db)
1785 CODE: 1950 CODE:
1786 if (db) 1951 if (db)
1787 { 1952 {
1788 SV *env = (SV *)db->app_private; 1953 SV *env = (SV *)db->app_private;
1789 db->close (db, 0); 1954 db->close (db, 0);
… …
1884 2049
1885 2050
1886MODULE = BDB PACKAGE = BDB::Txn 2051MODULE = BDB PACKAGE = BDB::Txn
1887 2052
1888void 2053void
1889DESTROY (DB_TXN_ornull *txn) 2054DESTROY (DB_TXN_ornuked *txn)
1890 CODE: 2055 CODE:
1891 if (txn) 2056 if (txn)
1892 txn->abort (txn); 2057 txn->abort (txn);
1893 2058
1894int set_timeout (DB_TXN *txn, NV timeout, U32 flags) 2059int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
1895 CODE: 2060 CODE:
1896 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags); 2061 RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
1897 OUTPUT: 2062 OUTPUT:
1898 RETVAL 2063 RETVAL
1899 2064
2065int failed (DB_TXN *txn)
2066 CODE:
2067 RETVAL = !!(txn->flags & TXN_DEADLOCK);
2068 OUTPUT:
2069 RETVAL
2070
1900 2071
1901MODULE = BDB PACKAGE = BDB::Cursor 2072MODULE = BDB PACKAGE = BDB::Cursor
1902 2073
1903void 2074void
1904DESTROY (DBC_ornull *dbc) 2075DESTROY (DBC_ornuked *dbc)
1905 CODE: 2076 CODE:
1906 if (dbc) 2077 if (dbc)
1907 dbc->c_close (dbc); 2078 dbc->c_close (dbc);
1908 2079
2080#if DB_VERSION_MINOR >= 6
2081
2082int set_priority (DBC *dbc, int priority)
2083 CODE:
2084 dbc->set_priority (dbc, priority);
2085
2086#endif
2087
1909MODULE = BDB PACKAGE = BDB::Sequence 2088MODULE = BDB PACKAGE = BDB::Sequence
1910 2089
1911void 2090void
1912DESTROY (DB_SEQUENCE_ornull *seq) 2091DESTROY (DB_SEQUENCE_ornuked *seq)
1913 CODE: 2092 CODE:
1914 if (seq) 2093 if (seq)
1915 seq->close (seq, 0); 2094 seq->close (seq, 0);
1916 2095
1917int initial_value (DB_SEQUENCE *seq, db_seq_t value) 2096int initial_value (DB_SEQUENCE *seq, db_seq_t value)
… …
1936 CODE: 2115 CODE:
1937 RETVAL = seq->set_range (seq, min, max); 2116 RETVAL = seq->set_range (seq, min, max);
1938 OUTPUT: 2117 OUTPUT:
1939 RETVAL 2118 RETVAL
1940 2119
2120

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