… | |
… | |
70 | /* buffer size for various temporary buffers */ |
70 | /* buffer size for various temporary buffers */ |
71 | #define EIO_BUFSIZE 65536 |
71 | #define EIO_BUFSIZE 65536 |
72 | |
72 | |
73 | #define dBUF \ |
73 | #define dBUF \ |
74 | char *eio_buf; \ |
74 | char *eio_buf; \ |
75 | X_LOCK (wrklock); \ |
75 | X_LOCK (etplock); \ |
76 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
76 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
77 | X_UNLOCK (wrklock); \ |
77 | X_UNLOCK (etplock); \ |
78 | errno = ENOMEM; \ |
78 | errno = ENOMEM; \ |
79 | if (!eio_buf) \ |
79 | if (!eio_buf) \ |
80 | return -1; |
80 | return -1; |
81 | |
81 | |
82 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
82 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
83 | |
83 | |
84 | static void (*want_poll_cb) (void); |
84 | /*****************************************************************************/ |
85 | static void (*done_poll_cb) (void); |
|
|
86 | |
|
|
87 | static unsigned int max_poll_time = 0; |
|
|
88 | static unsigned int max_poll_reqs = 0; |
|
|
89 | |
85 | |
90 | /* calculcate time difference in ~1/EIO_TICKS of a second */ |
86 | /* calculcate time difference in ~1/EIO_TICKS of a second */ |
91 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
87 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
92 | { |
88 | { |
93 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
89 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
94 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
90 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
95 | } |
91 | } |
96 | |
92 | |
97 | static unsigned int started, idle, wanted = 4; |
93 | static unsigned int started, idle, wanted = 4; |
98 | |
94 | |
99 | /* worker threads management */ |
95 | typedef struct etp_pool |
|
|
96 | { |
|
|
97 | void (*want_poll_cb) (void); |
|
|
98 | void (*done_poll_cb) (void); |
|
|
99 | |
|
|
100 | unsigned int max_poll_time; |
|
|
101 | unsigned int max_poll_reqs; |
|
|
102 | } etp_pool; |
|
|
103 | |
|
|
104 | static volatile unsigned int nreqs, nready, npending; |
|
|
105 | static volatile unsigned int max_idle = 4; |
|
|
106 | |
|
|
107 | static mutex_t etplock = X_MUTEX_INIT; |
100 | static mutex_t wrklock = X_MUTEX_INIT; |
108 | static mutex_t reslock = X_MUTEX_INIT; |
|
|
109 | static mutex_t reqlock = X_MUTEX_INIT; |
|
|
110 | static cond_t reqwait = X_COND_INIT; |
101 | |
111 | |
102 | typedef struct worker |
112 | typedef struct worker |
103 | { |
113 | { |
104 | /* locked by wrklock */ |
114 | /* locked by etplock */ |
105 | struct worker *prev, *next; |
115 | struct worker *prev, *next; |
106 | |
116 | |
107 | thread_t tid; |
117 | thread_t tid; |
108 | |
118 | |
109 | /* locked by reslock, reqlock or wrklock */ |
119 | /* locked by reslock, reqlock or etplock */ |
110 | eio_req *req; /* currently processed request */ |
120 | eio_req *req; /* currently processed request */ |
111 | void *dbuf; |
121 | void *dbuf; |
112 | DIR *dirp; |
122 | DIR *dirp; |
113 | } worker; |
123 | } worker; |
114 | |
124 | |
115 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
125 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
|
|
126 | |
|
|
127 | /* worker threads management */ |
116 | |
128 | |
117 | static void worker_clear (worker *wrk) |
129 | static void worker_clear (worker *wrk) |
118 | { |
130 | { |
119 | if (wrk->dirp) |
131 | if (wrk->dirp) |
120 | { |
132 | { |
… | |
… | |
134 | wrk->next->prev = wrk->prev; |
146 | wrk->next->prev = wrk->prev; |
135 | wrk->prev->next = wrk->next; |
147 | wrk->prev->next = wrk->next; |
136 | |
148 | |
137 | free (wrk); |
149 | free (wrk); |
138 | } |
150 | } |
139 | |
|
|
140 | static volatile unsigned int nreqs, nready, npending; |
|
|
141 | static volatile unsigned int max_idle = 4; |
|
|
142 | |
|
|
143 | static mutex_t reslock = X_MUTEX_INIT; |
|
|
144 | static mutex_t reqlock = X_MUTEX_INIT; |
|
|
145 | static cond_t reqwait = X_COND_INIT; |
|
|
146 | |
151 | |
147 | unsigned int eio_nreqs (void) |
152 | unsigned int eio_nreqs (void) |
148 | { |
153 | { |
149 | return nreqs; |
154 | return nreqs; |
150 | } |
155 | } |
… | |
… | |
234 | } |
239 | } |
235 | |
240 | |
236 | abort (); |
241 | abort (); |
237 | } |
242 | } |
238 | |
243 | |
|
|
244 | static void etp_atfork_prepare (void) |
|
|
245 | { |
|
|
246 | X_LOCK (etplock); |
|
|
247 | X_LOCK (reqlock); |
|
|
248 | X_LOCK (reslock); |
|
|
249 | #if !HAVE_PREADWRITE |
|
|
250 | X_LOCK (preadwritelock); |
|
|
251 | #endif |
|
|
252 | #if !HAVE_READDIR_R |
|
|
253 | X_LOCK (readdirlock); |
|
|
254 | #endif |
|
|
255 | } |
|
|
256 | |
|
|
257 | static void etp_atfork_parent (void) |
|
|
258 | { |
|
|
259 | #if !HAVE_READDIR_R |
|
|
260 | X_UNLOCK (readdirlock); |
|
|
261 | #endif |
|
|
262 | #if !HAVE_PREADWRITE |
|
|
263 | X_UNLOCK (preadwritelock); |
|
|
264 | #endif |
|
|
265 | X_UNLOCK (reslock); |
|
|
266 | X_UNLOCK (reqlock); |
|
|
267 | X_UNLOCK (etplock); |
|
|
268 | } |
|
|
269 | |
|
|
270 | static void etp_atfork_child (void) |
|
|
271 | { |
|
|
272 | eio_req *prv; |
|
|
273 | |
|
|
274 | while (prv = reqq_shift (&req_queue)) |
|
|
275 | eio_destroy (prv); |
|
|
276 | |
|
|
277 | while (prv = reqq_shift (&res_queue)) |
|
|
278 | eio_destroy (prv); |
|
|
279 | |
|
|
280 | while (wrk_first.next != &wrk_first) |
|
|
281 | { |
|
|
282 | worker *wrk = wrk_first.next; |
|
|
283 | |
|
|
284 | if (wrk->req) |
|
|
285 | eio_destroy (wrk->req); |
|
|
286 | |
|
|
287 | worker_clear (wrk); |
|
|
288 | worker_free (wrk); |
|
|
289 | } |
|
|
290 | |
|
|
291 | started = 0; |
|
|
292 | idle = 0; |
|
|
293 | nreqs = 0; |
|
|
294 | nready = 0; |
|
|
295 | npending = 0; |
|
|
296 | |
|
|
297 | etp_atfork_parent (); |
|
|
298 | } |
|
|
299 | |
|
|
300 | static void |
|
|
301 | etp_once_init (void) |
|
|
302 | { |
|
|
303 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
|
|
304 | } |
|
|
305 | |
|
|
306 | static int |
|
|
307 | etp_init (etp_pool *etp, void (*want_poll)(void), void (*done_poll)(void)) |
|
|
308 | { |
|
|
309 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
|
|
310 | |
|
|
311 | pthread_once (&doinit, etp_once_init); |
|
|
312 | |
|
|
313 | memset (etp, 0, sizeof *etp); |
|
|
314 | |
|
|
315 | etp->want_poll_cb = want_poll; |
|
|
316 | etp->done_poll_cb = done_poll; |
|
|
317 | } |
|
|
318 | |
|
|
319 | static etp_pool etp; |
|
|
320 | |
|
|
321 | /*****************************************************************************/ |
|
|
322 | |
239 | static void grp_try_feed (eio_req *grp) |
323 | static void grp_try_feed (eio_req *grp) |
240 | { |
324 | { |
241 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
325 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
242 | { |
326 | { |
243 | int old_len = grp->size; |
327 | int old_len = grp->size; |
… | |
… | |
310 | eio_cancel (grp); |
394 | eio_cancel (grp); |
311 | } |
395 | } |
312 | |
396 | |
313 | void eio_cancel (eio_req *req) |
397 | void eio_cancel (eio_req *req) |
314 | { |
398 | { |
315 | X_LOCK (wrklock); |
399 | X_LOCK (etplock); |
316 | req->flags |= EIO_FLAG_CANCELLED; |
400 | req->flags |= EIO_FLAG_CANCELLED; |
317 | X_UNLOCK (wrklock); |
401 | X_UNLOCK (etplock); |
318 | |
402 | |
319 | eio_grp_cancel (req); |
403 | eio_grp_cancel (req); |
320 | } |
404 | } |
321 | |
405 | |
322 | X_THREAD_PROC (eio_proc); |
406 | X_THREAD_PROC (eio_proc); |
… | |
… | |
326 | worker *wrk = calloc (1, sizeof (worker)); |
410 | worker *wrk = calloc (1, sizeof (worker)); |
327 | |
411 | |
328 | /*TODO*/ |
412 | /*TODO*/ |
329 | assert (("unable to allocate worker thread data", wrk)); |
413 | assert (("unable to allocate worker thread data", wrk)); |
330 | |
414 | |
331 | X_LOCK (wrklock); |
415 | X_LOCK (etplock); |
332 | |
416 | |
333 | if (thread_create (&wrk->tid, eio_proc, (void *)wrk)) |
417 | if (thread_create (&wrk->tid, eio_proc, (void *)wrk)) |
334 | { |
418 | { |
335 | wrk->prev = &wrk_first; |
419 | wrk->prev = &wrk_first; |
336 | wrk->next = wrk_first.next; |
420 | wrk->next = wrk_first.next; |
… | |
… | |
339 | ++started; |
423 | ++started; |
340 | } |
424 | } |
341 | else |
425 | else |
342 | free (wrk); |
426 | free (wrk); |
343 | |
427 | |
344 | X_UNLOCK (wrklock); |
428 | X_UNLOCK (etplock); |
345 | } |
429 | } |
346 | |
430 | |
347 | static void maybe_start_thread (void) |
431 | static void maybe_start_thread (void) |
348 | { |
432 | { |
349 | if (eio_nthreads () >= wanted) |
433 | if (eio_nthreads () >= wanted) |
… | |
… | |
384 | X_LOCK (reqlock); |
468 | X_LOCK (reqlock); |
385 | reqq_push (&req_queue, req); |
469 | reqq_push (&req_queue, req); |
386 | X_COND_SIGNAL (reqwait); |
470 | X_COND_SIGNAL (reqwait); |
387 | X_UNLOCK (reqlock); |
471 | X_UNLOCK (reqlock); |
388 | |
472 | |
389 | X_LOCK (wrklock); |
473 | X_LOCK (etplock); |
390 | --started; |
474 | --started; |
391 | X_UNLOCK (wrklock); |
475 | X_UNLOCK (etplock); |
392 | } |
476 | } |
393 | |
477 | |
394 | void eio_set_max_poll_time (double nseconds) |
478 | void eio_set_max_poll_time (double nseconds) |
395 | { |
479 | { |
396 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
480 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
397 | max_poll_time = nseconds; |
481 | etp.max_poll_time = nseconds; |
398 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
482 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
399 | } |
483 | } |
400 | |
484 | |
401 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
485 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
402 | { |
486 | { |
403 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
487 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
404 | max_poll_reqs = maxreqs; |
488 | etp.max_poll_reqs = maxreqs; |
405 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
489 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
406 | } |
490 | } |
407 | |
491 | |
408 | void eio_set_max_idle (unsigned int nthreads) |
492 | void eio_set_max_idle (unsigned int nthreads) |
409 | { |
493 | { |
… | |
… | |
427 | end_thread (); |
511 | end_thread (); |
428 | } |
512 | } |
429 | |
513 | |
430 | int eio_poll (void) |
514 | int eio_poll (void) |
431 | { |
515 | { |
432 | int maxreqs = max_poll_reqs; |
516 | int maxreqs = etp.max_poll_reqs; |
433 | struct timeval tv_start, tv_now; |
517 | struct timeval tv_start, tv_now; |
434 | eio_req *req; |
518 | eio_req *req; |
435 | |
519 | |
436 | if (max_poll_time) |
520 | if (etp.max_poll_time) |
437 | gettimeofday (&tv_start, 0); |
521 | gettimeofday (&tv_start, 0); |
438 | |
522 | |
439 | for (;;) |
523 | for (;;) |
440 | { |
524 | { |
441 | maybe_start_thread (); |
525 | maybe_start_thread (); |
… | |
… | |
445 | |
529 | |
446 | if (req) |
530 | if (req) |
447 | { |
531 | { |
448 | --npending; |
532 | --npending; |
449 | |
533 | |
450 | if (!res_queue.size && done_poll_cb) |
534 | if (!res_queue.size && etp.done_poll_cb) |
451 | done_poll_cb (); |
535 | etp.done_poll_cb (); |
452 | } |
536 | } |
453 | |
537 | |
454 | X_UNLOCK (reslock); |
538 | X_UNLOCK (reslock); |
455 | |
539 | |
456 | if (!req) |
540 | if (!req) |
… | |
… | |
471 | } |
555 | } |
472 | |
556 | |
473 | if (maxreqs && !--maxreqs) |
557 | if (maxreqs && !--maxreqs) |
474 | break; |
558 | break; |
475 | |
559 | |
476 | if (max_poll_time) |
560 | if (etp.max_poll_time) |
477 | { |
561 | { |
478 | gettimeofday (&tv_now, 0); |
562 | gettimeofday (&tv_now, 0); |
479 | |
563 | |
480 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
564 | if (tvdiff (&tv_start, &tv_now) >= etp.max_poll_time) |
481 | break; |
565 | break; |
482 | } |
566 | } |
483 | } |
567 | } |
484 | |
568 | |
485 | errno = EAGAIN; |
569 | errno = EAGAIN; |
… | |
… | |
729 | char *name, *names; |
813 | char *name, *names; |
730 | int memlen = 4096; |
814 | int memlen = 4096; |
731 | int memofs = 0; |
815 | int memofs = 0; |
732 | int res = 0; |
816 | int res = 0; |
733 | |
817 | |
734 | X_LOCK (wrklock); |
818 | X_LOCK (etplock); |
735 | self->dirp = dirp = opendir (req->ptr1); |
819 | self->dirp = dirp = opendir (req->ptr1); |
736 | self->dbuf = u = malloc (sizeof (*u)); |
820 | self->dbuf = u = malloc (sizeof (*u)); |
737 | req->flags |= EIO_FLAG_PTR2_FREE; |
821 | req->flags |= EIO_FLAG_PTR2_FREE; |
738 | req->ptr2 = names = malloc (memlen); |
822 | req->ptr2 = names = malloc (memlen); |
739 | X_UNLOCK (wrklock); |
823 | X_UNLOCK (etplock); |
740 | |
824 | |
741 | if (dirp && u && names) |
825 | if (dirp && u && names) |
742 | for (;;) |
826 | for (;;) |
743 | { |
827 | { |
744 | errno = 0; |
828 | errno = 0; |
… | |
… | |
756 | res++; |
840 | res++; |
757 | |
841 | |
758 | while (memofs + len > memlen) |
842 | while (memofs + len > memlen) |
759 | { |
843 | { |
760 | memlen *= 2; |
844 | memlen *= 2; |
761 | X_LOCK (wrklock); |
845 | X_LOCK (etplock); |
762 | req->ptr2 = names = realloc (names, memlen); |
846 | req->ptr2 = names = realloc (names, memlen); |
763 | X_UNLOCK (wrklock); |
847 | X_UNLOCK (etplock); |
764 | |
848 | |
765 | if (!names) |
849 | if (!names) |
766 | break; |
850 | break; |
767 | } |
851 | } |
768 | |
852 | |
… | |
… | |
780 | /*****************************************************************************/ |
864 | /*****************************************************************************/ |
781 | |
865 | |
782 | #define ALLOC(len) \ |
866 | #define ALLOC(len) \ |
783 | if (!req->ptr2) \ |
867 | if (!req->ptr2) \ |
784 | { \ |
868 | { \ |
785 | X_LOCK (wrklock); \ |
869 | X_LOCK (etplock); \ |
786 | req->flags |= EIO_FLAG_PTR2_FREE; \ |
870 | req->flags |= EIO_FLAG_PTR2_FREE; \ |
787 | X_UNLOCK (wrklock); \ |
871 | X_UNLOCK (etplock); \ |
788 | req->ptr2 = malloc (len); \ |
872 | req->ptr2 = malloc (len); \ |
789 | if (!req->ptr2) \ |
873 | if (!req->ptr2) \ |
790 | { \ |
874 | { \ |
791 | errno = ENOMEM; \ |
875 | errno = ENOMEM; \ |
792 | req->result = -1; \ |
876 | req->result = -1; \ |
… | |
… | |
822 | { |
906 | { |
823 | if (idle > max_idle) |
907 | if (idle > max_idle) |
824 | { |
908 | { |
825 | --idle; |
909 | --idle; |
826 | X_UNLOCK (reqlock); |
910 | X_UNLOCK (reqlock); |
827 | X_LOCK (wrklock); |
911 | X_LOCK (etplock); |
828 | --started; |
912 | --started; |
829 | X_UNLOCK (wrklock); |
913 | X_UNLOCK (etplock); |
830 | goto quit; |
914 | goto quit; |
831 | } |
915 | } |
832 | |
916 | |
833 | /* we are allowed to idle, so do so without any timeout */ |
917 | /* we are allowed to idle, so do so without any timeout */ |
834 | X_COND_WAIT (reqwait, reqlock); |
918 | X_COND_WAIT (reqwait, reqlock); |
… | |
… | |
948 | |
1032 | |
949 | X_LOCK (reslock); |
1033 | X_LOCK (reslock); |
950 | |
1034 | |
951 | ++npending; |
1035 | ++npending; |
952 | |
1036 | |
953 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
1037 | if (!reqq_push (&res_queue, req) && etp.want_poll_cb) |
954 | want_poll_cb (); |
1038 | etp.want_poll_cb (); |
955 | |
1039 | |
956 | self->req = 0; |
1040 | self->req = 0; |
957 | worker_clear (self); |
1041 | worker_clear (self); |
958 | |
1042 | |
959 | X_UNLOCK (reslock); |
1043 | X_UNLOCK (reslock); |
960 | } |
1044 | } |
961 | |
1045 | |
962 | quit: |
1046 | quit: |
963 | X_LOCK (wrklock); |
1047 | X_LOCK (etplock); |
964 | worker_free (self); |
1048 | worker_free (self); |
965 | X_UNLOCK (wrklock); |
1049 | X_UNLOCK (etplock); |
966 | |
1050 | |
967 | return 0; |
1051 | return 0; |
968 | } |
1052 | } |
969 | |
1053 | |
970 | /*****************************************************************************/ |
1054 | /*****************************************************************************/ |
971 | |
1055 | |
972 | static void eio_atfork_prepare (void) |
|
|
973 | { |
|
|
974 | X_LOCK (wrklock); |
|
|
975 | X_LOCK (reqlock); |
|
|
976 | X_LOCK (reslock); |
|
|
977 | #if !HAVE_PREADWRITE |
|
|
978 | X_LOCK (preadwritelock); |
|
|
979 | #endif |
|
|
980 | #if !HAVE_READDIR_R |
|
|
981 | X_LOCK (readdirlock); |
|
|
982 | #endif |
|
|
983 | } |
|
|
984 | |
|
|
985 | static void eio_atfork_parent (void) |
|
|
986 | { |
|
|
987 | #if !HAVE_READDIR_R |
|
|
988 | X_UNLOCK (readdirlock); |
|
|
989 | #endif |
|
|
990 | #if !HAVE_PREADWRITE |
|
|
991 | X_UNLOCK (preadwritelock); |
|
|
992 | #endif |
|
|
993 | X_UNLOCK (reslock); |
|
|
994 | X_UNLOCK (reqlock); |
|
|
995 | X_UNLOCK (wrklock); |
|
|
996 | } |
|
|
997 | |
|
|
998 | static void eio_atfork_child (void) |
|
|
999 | { |
|
|
1000 | eio_req *prv; |
|
|
1001 | |
|
|
1002 | while (prv = reqq_shift (&req_queue)) |
|
|
1003 | eio_destroy (prv); |
|
|
1004 | |
|
|
1005 | while (prv = reqq_shift (&res_queue)) |
|
|
1006 | eio_destroy (prv); |
|
|
1007 | |
|
|
1008 | while (wrk_first.next != &wrk_first) |
|
|
1009 | { |
|
|
1010 | worker *wrk = wrk_first.next; |
|
|
1011 | |
|
|
1012 | if (wrk->req) |
|
|
1013 | eio_destroy (wrk->req); |
|
|
1014 | |
|
|
1015 | worker_clear (wrk); |
|
|
1016 | worker_free (wrk); |
|
|
1017 | } |
|
|
1018 | |
|
|
1019 | started = 0; |
|
|
1020 | idle = 0; |
|
|
1021 | nreqs = 0; |
|
|
1022 | nready = 0; |
|
|
1023 | npending = 0; |
|
|
1024 | |
|
|
1025 | eio_atfork_parent (); |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1056 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1029 | { |
1057 | { |
1030 | want_poll_cb = want_poll; |
1058 | etp_init (&etp, want_poll, done_poll); |
1031 | done_poll_cb = done_poll; |
|
|
1032 | |
|
|
1033 | #ifdef _WIN32 |
|
|
1034 | X_MUTEX_CHECK (wrklock); |
|
|
1035 | X_MUTEX_CHECK (reslock); |
|
|
1036 | X_MUTEX_CHECK (reqlock); |
|
|
1037 | X_MUTEX_CHECK (reqwait); |
|
|
1038 | X_MUTEX_CHECK (preadwritelock); |
|
|
1039 | X_MUTEX_CHECK (readdirlock); |
|
|
1040 | |
|
|
1041 | X_COND_CHECK (reqwait); |
|
|
1042 | #endif |
|
|
1043 | |
|
|
1044 | X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child); |
|
|
1045 | } |
1059 | } |
1046 | |
1060 | |
1047 | static void eio_api_destroy (eio_req *req) |
1061 | static void eio_api_destroy (eio_req *req) |
1048 | { |
1062 | { |
1049 | free (req); |
1063 | free (req); |