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 |
… | |
… | |
128 | |
134 | |
129 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
135 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
130 | |
136 | |
131 | static int started, wanted; |
137 | static int started, wanted; |
132 | static volatile int nreqs; |
138 | static volatile int nreqs; |
133 | static int max_outstanding = 1<<30; |
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134 | static int respipe [2]; |
139 | static int respipe [2]; |
135 | |
140 | |
136 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
141 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
137 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
142 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
138 | #else |
143 | #else |
… | |
… | |
140 | #endif |
145 | #endif |
141 | |
146 | |
142 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
147 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
143 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
148 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
144 | |
149 | |
145 | /* worker threasd management */ |
150 | /* worker threads management */ |
146 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
151 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
147 | |
152 | |
148 | typedef struct worker { |
153 | typedef struct worker { |
149 | /* locked by wrklock */ |
154 | /* locked by wrklock */ |
150 | struct worker *prev, *next; |
155 | struct worker *prev, *next; |
… | |
… | |
238 | } |
243 | } |
239 | |
244 | |
240 | abort (); |
245 | abort (); |
241 | } |
246 | } |
242 | |
247 | |
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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) |
… | |
… | |
557 | |
563 | |
558 | static void *aio_proc(void *arg); |
564 | static void *aio_proc(void *arg); |
559 | |
565 | |
560 | static void start_thread (void) |
566 | static void start_thread (void) |
561 | { |
567 | { |
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568 | sigset_t fullsigset, oldsigset; |
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569 | pthread_attr_t attr; |
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570 | |
562 | worker *wrk = calloc (1, sizeof (worker)); |
571 | worker *wrk = calloc (1, sizeof (worker)); |
563 | |
572 | |
564 | if (!wrk) |
573 | if (!wrk) |
565 | croak ("unable to allocate worker thread data"); |
574 | croak ("unable to allocate worker thread data"); |
566 | |
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567 | sigset_t fullsigset, oldsigset; |
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568 | pthread_attr_t attr; |
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569 | |
575 | |
570 | pthread_attr_init (&attr); |
576 | pthread_attr_init (&attr); |
571 | pthread_attr_setstacksize (&attr, STACKSIZE); |
577 | pthread_attr_setstacksize (&attr, STACKSIZE); |
572 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
578 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
573 | |
579 | |
… | |
… | |
600 | |
606 | |
601 | LOCK (reqlock); |
607 | LOCK (reqlock); |
602 | reqq_push (&req_queue, req); |
608 | reqq_push (&req_queue, req); |
603 | pthread_cond_signal (&reqwait); |
609 | pthread_cond_signal (&reqwait); |
604 | UNLOCK (reqlock); |
610 | UNLOCK (reqlock); |
605 | |
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606 | if (nreqs > max_outstanding) |
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607 | for (;;) |
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608 | { |
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609 | poll_cb (); |
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610 | |
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611 | if (nreqs <= max_outstanding) |
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612 | break; |
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613 | |
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614 | poll_wait (); |
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615 | } |
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616 | } |
611 | } |
617 | |
612 | |
618 | static void end_thread (void) |
613 | static void end_thread (void) |
619 | { |
614 | { |
620 | aio_req req; |
615 | aio_req req; |
… | |
… | |
647 | } |
642 | } |
648 | |
643 | |
649 | while (started > wanted) |
644 | while (started > wanted) |
650 | { |
645 | { |
651 | poll_wait (); |
646 | poll_wait (); |
652 | poll_cb (); |
647 | poll_cb (0); |
653 | } |
648 | } |
654 | } |
649 | } |
655 | |
650 | |
656 | static void create_pipe () |
651 | static void create_pipe () |
657 | { |
652 | { |
… | |
… | |
713 | #if !HAVE_FDATASYNC |
708 | #if !HAVE_FDATASYNC |
714 | # define fdatasync fsync |
709 | # define fdatasync fsync |
715 | #endif |
710 | #endif |
716 | |
711 | |
717 | #if !HAVE_READAHEAD |
712 | #if !HAVE_READAHEAD |
718 | # define readahead aio_readahead |
713 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
719 | |
714 | |
720 | 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) |
721 | { |
716 | { |
722 | dBUF; |
717 | dBUF; |
723 | |
718 | |
724 | while (count > 0) |
719 | while (count > 0) |
725 | { |
720 | { |
… | |
… | |
730 | count -= len; |
725 | count -= len; |
731 | } |
726 | } |
732 | |
727 | |
733 | errno = 0; |
728 | errno = 0; |
734 | } |
729 | } |
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730 | |
735 | #endif |
731 | #endif |
736 | |
732 | |
737 | #if !HAVE_READDIR_R |
733 | #if !HAVE_READDIR_R |
738 | # define readdir_r aio_readdir_r |
734 | # define readdir_r aio_readdir_r |
739 | |
735 | |
… | |
… | |
784 | { |
780 | { |
785 | off_t sbytes; |
781 | off_t sbytes; |
786 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
782 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
787 | |
783 | |
788 | if (res < 0 && sbytes) |
784 | if (res < 0 && sbytes) |
789 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
785 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
790 | res = sbytes; |
786 | res = sbytes; |
791 | } |
787 | } |
792 | |
788 | |
793 | # elif __hpux |
789 | # elif __hpux |
794 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
790 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
874 | int errorno; |
870 | int errorno; |
875 | |
871 | |
876 | LOCK (wrklock); |
872 | LOCK (wrklock); |
877 | self->dirp = dirp = opendir (req->dataptr); |
873 | self->dirp = dirp = opendir (req->dataptr); |
878 | self->dbuf = u = malloc (sizeof (*u)); |
874 | self->dbuf = u = malloc (sizeof (*u)); |
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875 | req->data2ptr = names = malloc (memlen); |
879 | UNLOCK (wrklock); |
876 | UNLOCK (wrklock); |
880 | |
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881 | req->data2ptr = names = malloc (memlen); |
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882 | |
877 | |
883 | if (dirp && u && names) |
878 | if (dirp && u && names) |
884 | for (;;) |
879 | for (;;) |
885 | { |
880 | { |
886 | errno = 0; |
881 | errno = 0; |
… | |
… | |
1116 | void |
1111 | void |
1117 | max_parallel (nthreads) |
1112 | max_parallel (nthreads) |
1118 | int nthreads |
1113 | int nthreads |
1119 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
1120 | |
1115 | |
1121 | int |
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|
1122 | max_outstanding (nreqs) |
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1123 | int nreqs |
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|
1124 | PROTOTYPE: $ |
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|
1125 | CODE: |
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1126 | RETVAL = max_outstanding; |
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1127 | max_outstanding = nreqs; |
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1128 | |
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1129 | void |
1116 | void |
1130 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1131 | SV * pathname |
1118 | SV * pathname |
1132 | int flags |
1119 | int flags |
1133 | int mode |
1120 | int mode |
… | |
… | |
1409 | PROTOTYPE: |
1396 | PROTOTYPE: |
1410 | CODE: |
1397 | CODE: |
1411 | while (nreqs) |
1398 | while (nreqs) |
1412 | { |
1399 | { |
1413 | poll_wait (); |
1400 | poll_wait (); |
1414 | poll_cb (); |
1401 | poll_cb (0); |
1415 | } |
1402 | } |
1416 | |
1403 | |
1417 | void |
1404 | void |
1418 | poll() |
1405 | poll() |
1419 | PROTOTYPE: |
1406 | PROTOTYPE: |
1420 | CODE: |
1407 | CODE: |
1421 | if (nreqs) |
1408 | if (nreqs) |
1422 | { |
1409 | { |
1423 | poll_wait (); |
1410 | poll_wait (); |
1424 | poll_cb (); |
1411 | poll_cb (0); |
1425 | } |
1412 | } |
1426 | |
1413 | |
1427 | int |
1414 | int |
1428 | poll_fileno() |
1415 | poll_fileno() |
1429 | PROTOTYPE: |
1416 | PROTOTYPE: |
… | |
… | |
1434 | |
1421 | |
1435 | int |
1422 | int |
1436 | poll_cb(...) |
1423 | poll_cb(...) |
1437 | PROTOTYPE: |
1424 | PROTOTYPE: |
1438 | CODE: |
1425 | CODE: |
1439 | 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); |
1440 | OUTPUT: |
1435 | OUTPUT: |
1441 | RETVAL |
1436 | RETVAL |
1442 | |
1437 | |
1443 | void |
1438 | void |
1444 | poll_wait() |
1439 | poll_wait() |