1 | #define PERL_NO_GET_CONTEXT |
1 | #define _XOPEN_SOURCE 500 |
2 | |
2 | |
3 | #include "EXTERN.h" |
3 | #include "EXTERN.h" |
4 | #include "perl.h" |
4 | #include "perl.h" |
5 | #include "XSUB.h" |
5 | #include "XSUB.h" |
6 | |
6 | |
7 | #include <sys/types.h> |
7 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
8 | #include <sys/stat.h> |
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9 | |
9 | #include <unistd.h> |
10 | #include <unistd.h> |
10 | #include <fcntl.h> |
11 | #include <fcntl.h> |
11 | #include <signal.h> |
12 | #include <signal.h> |
12 | #include <sched.h> |
13 | #include <sched.h> |
13 | #include <endian.h> |
14 | #if __linux |
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15 | #include <sys/syscall.h> |
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16 | #endif |
14 | |
17 | |
15 | #include <pthread.h> |
18 | #include <pthread.h> |
16 | #include <sys/syscall.h> |
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17 | |
19 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | |
23 | |
… | |
… | |
52 | } aio_cb; |
54 | } aio_cb; |
53 | |
55 | |
54 | typedef aio_cb *aio_req; |
56 | typedef aio_cb *aio_req; |
55 | |
57 | |
56 | static int started; |
58 | static int started; |
57 | static int nreqs; |
59 | static volatile int nreqs; |
58 | static int max_outstanding = 1<<30; |
60 | static int max_outstanding = 1<<30; |
59 | static int respipe [2]; |
61 | static int respipe [2]; |
60 | |
62 | |
61 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
62 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
66 | static volatile aio_req ress, rese; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
67 | |
69 | |
68 | static void |
70 | static void |
69 | poll_wait () |
71 | poll_wait () |
70 | { |
72 | { |
71 | if (!nreqs) |
73 | if (nreqs && !ress) |
72 | return; |
74 | { |
73 | |
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74 | fd_set rfd; |
75 | fd_set rfd; |
75 | FD_ZERO(&rfd); |
76 | FD_ZERO(&rfd); |
76 | FD_SET(respipe [0], &rfd); |
77 | FD_SET(respipe [0], &rfd); |
77 | |
78 | |
78 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
79 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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80 | } |
79 | } |
81 | } |
80 | |
82 | |
81 | static int |
83 | static int |
82 | poll_cb (pTHX) |
84 | poll_cb () |
83 | { |
85 | { |
84 | dSP; |
86 | dSP; |
85 | int count = 0; |
87 | int count = 0; |
86 | aio_req req; |
88 | aio_req req, prv; |
87 | |
89 | |
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90 | pthread_mutex_lock (&reslock); |
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91 | |
88 | { |
92 | { |
89 | /* read and signals sent by the worker threads */ |
93 | /* read any signals sent by the worker threads */ |
90 | char buf [32]; |
94 | char buf [32]; |
91 | while (read (respipe [0], buf, 32) > 0) |
95 | while (read (respipe [0], buf, 32) > 0) |
92 | ; |
96 | ; |
93 | } |
97 | } |
94 | |
98 | |
95 | for (;;) |
99 | req = ress; |
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100 | ress = rese = 0; |
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101 | |
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102 | pthread_mutex_unlock (&reslock); |
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103 | |
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104 | while (req) |
96 | { |
105 | { |
97 | pthread_mutex_lock (&reslock); |
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98 | |
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99 | req = ress; |
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100 | |
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101 | if (ress) |
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102 | { |
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103 | ress = ress->next; |
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104 | if (!ress) rese = 0; |
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105 | } |
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106 | |
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107 | pthread_mutex_unlock (&reslock); |
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108 | |
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109 | if (!req) |
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110 | break; |
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111 | |
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112 | nreqs--; |
106 | nreqs--; |
113 | |
107 | |
114 | if (req->type == REQ_QUIT) |
108 | if (req->type == REQ_QUIT) |
115 | started--; |
109 | started--; |
116 | else |
110 | else |
… | |
… | |
150 | |
144 | |
151 | PUSHMARK (SP); |
145 | PUSHMARK (SP); |
152 | XPUSHs (fh); |
146 | XPUSHs (fh); |
153 | } |
147 | } |
154 | |
148 | |
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149 | if (SvOK (req->callback)) |
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150 | { |
155 | PUTBACK; |
151 | PUTBACK; |
156 | call_sv (req->callback, G_VOID | G_EVAL); |
152 | call_sv (req->callback, G_VOID | G_EVAL); |
157 | SPAGAIN; |
153 | SPAGAIN; |
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154 | } |
158 | |
155 | |
159 | if (req->callback) |
156 | if (req->callback) |
160 | SvREFCNT_dec (req->callback); |
157 | SvREFCNT_dec (req->callback); |
161 | |
158 | |
162 | errno = errorno; |
159 | errno = errorno; |
163 | count++; |
160 | count++; |
164 | } |
161 | } |
165 | |
162 | |
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163 | prv = req; |
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164 | req = req->next; |
166 | Safefree (req); |
165 | Safefree (prv); |
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166 | |
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167 | /* TODO: croak on errors? */ |
167 | } |
168 | } |
168 | |
169 | |
169 | return count; |
170 | return count; |
170 | } |
171 | } |
171 | |
172 | |
… | |
… | |
227 | |
228 | |
228 | send_req (req); |
229 | send_req (req); |
229 | } |
230 | } |
230 | |
231 | |
231 | static void |
232 | static void |
232 | read_write (pTHX_ |
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233 | int dowrite, int fd, off_t offset, size_t length, |
233 | read_write (int dowrite, int fd, off_t offset, size_t length, |
234 | SV *data, STRLEN dataoffset, SV *callback) |
234 | SV *data, STRLEN dataoffset, SV *callback) |
235 | { |
235 | { |
236 | aio_req req; |
236 | aio_req req; |
237 | STRLEN svlen; |
237 | STRLEN svlen; |
238 | char *svptr = SvPV (data, svlen); |
238 | char *svptr = SvPV (data, svlen); |
… | |
… | |
309 | |
309 | |
310 | type = req->type; |
310 | type = req->type; |
311 | |
311 | |
312 | switch (type) |
312 | switch (type) |
313 | { |
313 | { |
314 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
314 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
315 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
315 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
316 | #if SYS_readahead |
316 | #if SYS_readahead |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
318 | #else |
318 | #else |
319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
320 | #endif |
320 | #endif |
… | |
… | |
364 | return 0; |
364 | return 0; |
365 | } |
365 | } |
366 | |
366 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
368 | |
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369 | PROTOTYPES: ENABLE |
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370 | |
369 | BOOT: |
371 | BOOT: |
370 | { |
372 | { |
371 | if (pipe (respipe)) |
373 | if (pipe (respipe)) |
372 | croak ("unable to initialize result pipe"); |
374 | croak ("unable to initialize result pipe"); |
373 | |
375 | |
… | |
… | |
400 | } |
402 | } |
401 | |
403 | |
402 | while (started > nthreads) |
404 | while (started > nthreads) |
403 | { |
405 | { |
404 | poll_wait (); |
406 | poll_wait (); |
405 | poll_cb (aTHX); |
407 | poll_cb (); |
406 | } |
408 | } |
407 | } |
409 | } |
408 | |
410 | |
409 | int |
411 | int |
410 | max_outstanding(nreqs) |
412 | max_outstanding(nreqs) |
… | |
… | |
413 | CODE: |
415 | CODE: |
414 | RETVAL = max_outstanding; |
416 | RETVAL = max_outstanding; |
415 | max_outstanding = nreqs; |
417 | max_outstanding = nreqs; |
416 | |
418 | |
417 | void |
419 | void |
418 | aio_open(pathname,flags,mode,callback) |
420 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
419 | SV * pathname |
421 | SV * pathname |
420 | int flags |
422 | int flags |
421 | int mode |
423 | int mode |
422 | SV * callback |
424 | SV * callback |
423 | PROTOTYPE: $$$$ |
425 | PROTOTYPE: $$$;$ |
424 | CODE: |
426 | CODE: |
425 | { |
427 | { |
426 | aio_req req; |
428 | aio_req req; |
427 | |
429 | |
428 | Newz (0, req, 1, aio_cb); |
430 | Newz (0, req, 1, aio_cb); |
… | |
… | |
439 | |
441 | |
440 | send_req (req); |
442 | send_req (req); |
441 | } |
443 | } |
442 | |
444 | |
443 | void |
445 | void |
444 | aio_close(fh,callback) |
446 | aio_close(fh,callback=&PL_sv_undef) |
445 | InputStream fh |
447 | InputStream fh |
446 | SV * callback |
448 | SV * callback |
447 | PROTOTYPE: $$ |
449 | PROTOTYPE: $;$ |
448 | ALIAS: |
450 | ALIAS: |
449 | aio_close = REQ_CLOSE |
451 | aio_close = REQ_CLOSE |
450 | aio_fsync = REQ_FSYNC |
452 | aio_fsync = REQ_FSYNC |
451 | aio_fdatasync = REQ_FDATASYNC |
453 | aio_fdatasync = REQ_FDATASYNC |
452 | CODE: |
454 | CODE: |
… | |
… | |
464 | |
466 | |
465 | send_req (req); |
467 | send_req (req); |
466 | } |
468 | } |
467 | |
469 | |
468 | void |
470 | void |
469 | aio_read(fh,offset,length,data,dataoffset,callback) |
471 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
470 | InputStream fh |
472 | InputStream fh |
471 | UV offset |
473 | UV offset |
472 | IV length |
474 | IV length |
473 | SV * data |
475 | SV * data |
474 | IV dataoffset |
476 | IV dataoffset |
475 | SV * callback |
477 | SV * callback |
476 | PROTOTYPE: $$$$$$ |
478 | PROTOTYPE: $$$$$;$ |
477 | CODE: |
479 | CODE: |
478 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
480 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
479 | |
481 | |
480 | void |
482 | void |
481 | aio_write(fh,offset,length,data,dataoffset,callback) |
483 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
482 | OutputStream fh |
484 | OutputStream fh |
483 | UV offset |
485 | UV offset |
484 | IV length |
486 | IV length |
485 | SV * data |
487 | SV * data |
486 | IV dataoffset |
488 | IV dataoffset |
487 | SV * callback |
489 | SV * callback |
488 | PROTOTYPE: $$$$$$ |
490 | PROTOTYPE: $$$$$;$ |
489 | CODE: |
491 | CODE: |
490 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
492 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
491 | |
493 | |
492 | void |
494 | void |
493 | aio_readahead(fh,offset,length,callback) |
495 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
494 | InputStream fh |
496 | InputStream fh |
495 | UV offset |
497 | UV offset |
496 | IV length |
498 | IV length |
497 | SV * callback |
499 | SV * callback |
498 | PROTOTYPE: $$$$ |
500 | PROTOTYPE: $$$;$ |
499 | CODE: |
501 | CODE: |
500 | { |
502 | { |
501 | aio_req req; |
503 | aio_req req; |
502 | |
504 | |
503 | if (length < 0) |
505 | if (length < 0) |
… | |
… | |
516 | |
518 | |
517 | send_req (req); |
519 | send_req (req); |
518 | } |
520 | } |
519 | |
521 | |
520 | void |
522 | void |
521 | aio_stat(fh_or_path,callback) |
523 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
522 | SV * fh_or_path |
524 | SV * fh_or_path |
523 | SV * callback |
525 | SV * callback |
524 | PROTOTYPE: $$ |
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525 | ALIAS: |
526 | ALIAS: |
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527 | aio_stat = REQ_STAT |
526 | aio_lstat = 1 |
528 | aio_lstat = REQ_LSTAT |
527 | CODE: |
529 | CODE: |
528 | { |
530 | { |
529 | aio_req req; |
531 | aio_req req; |
530 | |
532 | |
531 | Newz (0, req, 1, aio_cb); |
533 | Newz (0, req, 1, aio_cb); |
… | |
… | |
538 | if (!req->statdata) |
540 | if (!req->statdata) |
539 | croak ("out of memory during aio_req->statdata allocation"); |
541 | croak ("out of memory during aio_req->statdata allocation"); |
540 | |
542 | |
541 | if (SvPOK (fh_or_path)) |
543 | if (SvPOK (fh_or_path)) |
542 | { |
544 | { |
543 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
545 | req->type = ix; |
544 | req->data = newSVsv (fh_or_path); |
546 | req->data = newSVsv (fh_or_path); |
545 | req->dataptr = SvPV_nolen (req->data); |
547 | req->dataptr = SvPV_nolen (req->data); |
546 | } |
548 | } |
547 | else |
549 | else |
548 | { |
550 | { |
… | |
… | |
554 | |
556 | |
555 | send_req (req); |
557 | send_req (req); |
556 | } |
558 | } |
557 | |
559 | |
558 | void |
560 | void |
559 | aio_unlink(pathname,callback) |
561 | aio_unlink(pathname,callback=&PL_sv_undef) |
560 | SV * pathname |
562 | SV * pathname |
561 | SV * callback |
563 | SV * callback |
562 | PROTOTYPE: $$ |
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563 | CODE: |
564 | CODE: |
564 | { |
565 | { |
565 | aio_req req; |
566 | aio_req req; |
566 | |
567 | |
567 | Newz (0, req, 1, aio_cb); |
568 | Newz (0, req, 1, aio_cb); |
… | |
… | |
575 | req->callback = SvREFCNT_inc (callback); |
576 | req->callback = SvREFCNT_inc (callback); |
576 | |
577 | |
577 | send_req (req); |
578 | send_req (req); |
578 | } |
579 | } |
579 | |
580 | |
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581 | void |
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582 | flush() |
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583 | PROTOTYPE: |
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584 | CODE: |
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585 | while (nreqs) |
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586 | { |
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587 | poll_wait (); |
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588 | poll_cb (); |
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589 | } |
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590 | |
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591 | void |
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592 | poll() |
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593 | PROTOTYPE: |
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594 | CODE: |
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595 | if (nreqs) |
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596 | { |
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597 | poll_wait (); |
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598 | poll_cb (); |
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599 | } |
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600 | |
580 | int |
601 | int |
581 | poll_fileno() |
602 | poll_fileno() |
582 | PROTOTYPE: |
603 | PROTOTYPE: |
583 | CODE: |
604 | CODE: |
584 | RETVAL = respipe [0]; |
605 | RETVAL = respipe [0]; |
… | |
… | |
587 | |
608 | |
588 | int |
609 | int |
589 | poll_cb(...) |
610 | poll_cb(...) |
590 | PROTOTYPE: |
611 | PROTOTYPE: |
591 | CODE: |
612 | CODE: |
592 | RETVAL = poll_cb (aTHX); |
613 | RETVAL = poll_cb (); |
593 | OUTPUT: |
614 | OUTPUT: |
594 | RETVAL |
615 | RETVAL |
595 | |
616 | |
596 | void |
617 | void |
597 | poll_wait() |
618 | poll_wait() |