1 | /* solaris */ |
1 | /* solaris */ |
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
3 | |
3 | |
4 | #if __linux |
4 | #if __linux && !defined(_GNU_SOURCE) |
5 | # define _GNU_SOURCE |
5 | # define _GNU_SOURCE |
6 | #endif |
6 | #endif |
7 | |
7 | |
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8 | /* just in case */ |
8 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
9 | |
10 | |
10 | #include <errno.h> |
11 | #include <errno.h> |
11 | |
12 | |
12 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
… | |
… | |
47 | /* used for struct dirent, AIX doesn't provide it */ |
48 | /* used for struct dirent, AIX doesn't provide it */ |
48 | #ifndef NAME_MAX |
49 | #ifndef NAME_MAX |
49 | # define NAME_MAX 4096 |
50 | # define NAME_MAX 4096 |
50 | #endif |
51 | #endif |
51 | |
52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
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57 | |
52 | #if __ia64 |
58 | #if __ia64 |
53 | # define STACKSIZE 65536 |
59 | # define STACKSIZE 65536 |
54 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
55 | # define STACKSIZE PTHREAD_STACK_MIN |
61 | # define STACKSIZE PTHREAD_STACK_MIN |
56 | #else |
62 | #else |
… | |
… | |
139 | #endif |
145 | #endif |
140 | |
146 | |
141 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
147 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
142 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
148 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
143 | |
149 | |
144 | /* worker threasd management */ |
150 | /* worker threads management */ |
145 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
151 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
146 | |
152 | |
147 | typedef struct worker { |
153 | typedef struct worker { |
148 | /* locked by wrklock */ |
154 | /* locked by wrklock */ |
149 | struct worker *prev, *next; |
155 | struct worker *prev, *next; |
… | |
… | |
237 | } |
243 | } |
238 | |
244 | |
239 | abort (); |
245 | abort (); |
240 | } |
246 | } |
241 | |
247 | |
242 | static int poll_cb (); |
248 | static int poll_cb (int max); |
243 | static void req_invoke (aio_req req); |
249 | static void req_invoke (aio_req req); |
244 | static void req_free (aio_req req); |
250 | static void req_free (aio_req req); |
245 | static void req_cancel (aio_req req); |
251 | static void req_cancel (aio_req req); |
246 | |
252 | |
247 | /* must be called at most once */ |
253 | /* must be called at most once */ |
… | |
… | |
490 | req->flags |= FLAG_CANCELLED; |
496 | req->flags |= FLAG_CANCELLED; |
491 | |
497 | |
492 | req_cancel_subs (req); |
498 | req_cancel_subs (req); |
493 | } |
499 | } |
494 | |
500 | |
495 | static int poll_cb () |
501 | static int poll_cb (int max) |
496 | { |
502 | { |
497 | dSP; |
503 | dSP; |
498 | int count = 0; |
504 | int count = 0; |
499 | int do_croak = 0; |
505 | int do_croak = 0; |
500 | aio_req req; |
506 | aio_req req; |
501 | |
507 | |
502 | for (;;) |
508 | while (max <= 0 || count < max) |
503 | { |
509 | { |
504 | LOCK (reslock); |
510 | LOCK (reslock); |
505 | req = reqq_shift (&res_queue); |
511 | req = reqq_shift (&res_queue); |
506 | |
512 | |
507 | if (req) |
513 | if (req) |
… | |
… | |
636 | } |
642 | } |
637 | |
643 | |
638 | while (started > wanted) |
644 | while (started > wanted) |
639 | { |
645 | { |
640 | poll_wait (); |
646 | poll_wait (); |
641 | poll_cb (); |
647 | poll_cb (0); |
642 | } |
648 | } |
643 | } |
649 | } |
644 | |
650 | |
645 | static void create_pipe () |
651 | static void create_pipe () |
646 | { |
652 | { |
… | |
… | |
702 | #if !HAVE_FDATASYNC |
708 | #if !HAVE_FDATASYNC |
703 | # define fdatasync fsync |
709 | # define fdatasync fsync |
704 | #endif |
710 | #endif |
705 | |
711 | |
706 | #if !HAVE_READAHEAD |
712 | #if !HAVE_READAHEAD |
707 | # define readahead aio_readahead |
713 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
708 | |
714 | |
709 | static ssize_t readahead (int fd, off_t offset, size_t count) |
715 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
710 | { |
716 | { |
711 | dBUF; |
717 | dBUF; |
712 | |
718 | |
713 | while (count > 0) |
719 | while (count > 0) |
714 | { |
720 | { |
… | |
… | |
719 | count -= len; |
725 | count -= len; |
720 | } |
726 | } |
721 | |
727 | |
722 | errno = 0; |
728 | errno = 0; |
723 | } |
729 | } |
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730 | |
724 | #endif |
731 | #endif |
725 | |
732 | |
726 | #if !HAVE_READDIR_R |
733 | #if !HAVE_READDIR_R |
727 | # define readdir_r aio_readdir_r |
734 | # define readdir_r aio_readdir_r |
728 | |
735 | |
… | |
… | |
863 | int errorno; |
870 | int errorno; |
864 | |
871 | |
865 | LOCK (wrklock); |
872 | LOCK (wrklock); |
866 | self->dirp = dirp = opendir (req->dataptr); |
873 | self->dirp = dirp = opendir (req->dataptr); |
867 | self->dbuf = u = malloc (sizeof (*u)); |
874 | self->dbuf = u = malloc (sizeof (*u)); |
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875 | req->data2ptr = names = malloc (memlen); |
868 | UNLOCK (wrklock); |
876 | UNLOCK (wrklock); |
869 | |
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870 | req->data2ptr = names = malloc (memlen); |
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871 | |
877 | |
872 | if (dirp && u && names) |
878 | if (dirp && u && names) |
873 | for (;;) |
879 | for (;;) |
874 | { |
880 | { |
875 | errno = 0; |
881 | errno = 0; |
… | |
… | |
1390 | PROTOTYPE: |
1396 | PROTOTYPE: |
1391 | CODE: |
1397 | CODE: |
1392 | while (nreqs) |
1398 | while (nreqs) |
1393 | { |
1399 | { |
1394 | poll_wait (); |
1400 | poll_wait (); |
1395 | poll_cb (); |
1401 | poll_cb (0); |
1396 | } |
1402 | } |
1397 | |
1403 | |
1398 | void |
1404 | void |
1399 | poll() |
1405 | poll() |
1400 | PROTOTYPE: |
1406 | PROTOTYPE: |
1401 | CODE: |
1407 | CODE: |
1402 | if (nreqs) |
1408 | if (nreqs) |
1403 | { |
1409 | { |
1404 | poll_wait (); |
1410 | poll_wait (); |
1405 | poll_cb (); |
1411 | poll_cb (0); |
1406 | } |
1412 | } |
1407 | |
1413 | |
1408 | int |
1414 | int |
1409 | poll_fileno() |
1415 | poll_fileno() |
1410 | PROTOTYPE: |
1416 | PROTOTYPE: |
… | |
… | |
1415 | |
1421 | |
1416 | int |
1422 | int |
1417 | poll_cb(...) |
1423 | poll_cb(...) |
1418 | PROTOTYPE: |
1424 | PROTOTYPE: |
1419 | CODE: |
1425 | CODE: |
1420 | RETVAL = poll_cb (); |
1426 | RETVAL = poll_cb (0); |
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1427 | OUTPUT: |
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1428 | RETVAL |
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1429 | |
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1430 | int |
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1431 | poll_some(int max = 0) |
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1432 | PROTOTYPE: $ |
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1433 | CODE: |
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1434 | RETVAL = poll_cb (max); |
1421 | OUTPUT: |
1435 | OUTPUT: |
1422 | RETVAL |
1436 | RETVAL |
1423 | |
1437 | |
1424 | void |
1438 | void |
1425 | poll_wait() |
1439 | poll_wait() |