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/cvs/IO-AIO/AIO.xs
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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.31 by root, Thu Aug 18 16:34:53 2005 UTC vs.
Revision 1.33 by root, Mon Aug 22 23:21:57 2005 UTC

… …
4#include "EXTERN.h" 4#include "EXTERN.h"
5#include "perl.h" 5#include "perl.h"
6#include "XSUB.h" 6#include "XSUB.h"
7 7
8#include "autoconf/config.h" 8#include "autoconf/config.h"
9
10#include <pthread.h>
9 11
10#include <sys/types.h> 12#include <sys/types.h>
11#include <sys/stat.h> 13#include <sys/stat.h>
12 14
13#include <unistd.h> 15#include <unistd.h>
14#include <fcntl.h> 16#include <fcntl.h>
15#include <signal.h> 17#include <signal.h>
16#include <sched.h> 18#include <sched.h>
17 19
18#include <pthread.h> 20#if HAVE_SENDFILE
19 21# if __linux
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 22# include <sys/sendfile.h>
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 23# elif __freebsd
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24# include <sys/socket.h>
25# include <sys/uio.h>
26# elif __hpux
27# include <sys/socket.h>
28# endif
29#endif
23 30
24#if __ia64 31#if __ia64
25# define STACKSIZE 65536 32# define STACKSIZE 65536
26#else 33#else
27# define STACKSIZE 4096 34# define STACKSIZE 4096
… …
29 36
30enum { 37enum {
31 REQ_QUIT, 38 REQ_QUIT,
32 REQ_OPEN, REQ_CLOSE, 39 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD, 40 REQ_READ, REQ_WRITE, REQ_READAHEAD,
41 REQ_SENDFILE,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 42 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC, 43 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR, 44 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK, 45 REQ_SYMLINK,
38}; 46};
… …
40typedef struct aio_cb { 48typedef struct aio_cb {
41 struct aio_cb *volatile next; 49 struct aio_cb *volatile next;
42 50
43 int type; 51 int type;
44 52
45 int fd; 53 int fd, fd2;
46 off_t offset; 54 off_t offset;
47 size_t length; 55 size_t length;
48 ssize_t result; 56 ssize_t result;
49 mode_t mode; /* open */ 57 mode_t mode; /* open */
50 int errorno; 58 int errorno;
51 SV *data, *callback, *fh; 59 SV *data, *callback;
60 SV *fh, *fh2;
52 void *dataptr, *data2ptr; 61 void *dataptr, *data2ptr;
53 STRLEN dataoffset; 62 STRLEN dataoffset;
54 63
55 Stat_t *statdata; 64 Stat_t *statdata;
56} aio_cb; 65} aio_cb;
… …
74 if (req->data) 83 if (req->data)
75 SvREFCNT_dec (req->data); 84 SvREFCNT_dec (req->data);
76 85
77 if (req->fh) 86 if (req->fh)
78 SvREFCNT_dec (req->fh); 87 SvREFCNT_dec (req->fh);
88
89 if (req->fh2)
90 SvREFCNT_dec (req->fh2);
79 91
80 if (req->statdata) 92 if (req->statdata)
81 Safefree (req->statdata); 93 Safefree (req->statdata);
82 94
83 if (req->callback) 95 if (req->callback)
… …
416 428
417 errno = 0; 429 errno = 0;
418} 430}
419#endif 431#endif
420 432
433/* sendfile always needs emulation */
434static ssize_t
435sendfile_ (int ofd, int ifd, off_t offset, size_t count)
436{
437 ssize_t res;
438
439 if (!count)
440 return 0;
441
442#if __linux
443 res = sendfile (ofd, ifd, &offset, count);
444
445#elif __freebsd
446 /*
447 * Of course, the freebsd sendfile is a dire hack with no thoughts
448 * wasted on making it similar to other i/o functions.
449 */
450 {
451 off_t sbytes;
452 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
453
454 if (!res && errno == EAGAIN)
455 /* maybe on others, too, as usual, the manpage leaves you guessing */
456 res = sbytes;
457 }
458
459#elif __hpux
460 res = sendfile (ofd, ifd, offset, count, 0, 0);
461
462#else
463 res = -1;
464 errno = ENOSYS;
465#endif
466
467 if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK))
468 {
469 /* emulate sendfile. this is a major pain in the ass */
470 char *buf = malloc (4096);
471 res = 0;
472
473 for (;;)
474 {
475 ssize_t cnt;
476
477 cnt = pread (ifd, buf, 4096, offset);
478
479 if (cnt <= 0)
480 {
481 if (cnt && !res) res = -1;
482 break;
483 }
484
485 cnt = write (ofd, buf, cnt);
486
487 if (cnt <= 0)
488 {
489 if (cnt && !res) res = -1;
490 break;
491 }
492
493 offset += cnt;
494 res += cnt;
495 }
496
497 {
498 int errorno = errno;
499 free (buf);
500 errno = errorno;
501 }
502 }
503
504 return res;
505}
506
421/*****************************************************************************/ 507/*****************************************************************************/
422 508
423static void * 509static void *
424aio_proc (void *thr_arg) 510aio_proc (void *thr_arg)
425{ 511{
… …
456 { 542 {
457 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 543 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
458 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 544 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
459 545
460 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 546 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
547 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
461 548
462 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 549 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
463 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 550 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
464 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 551 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
465 552
… …
588 675
589void 676void
590aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 677aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
591 SV * fh 678 SV * fh
592 UV offset 679 UV offset
593 IV length 680 UV length
594 SV * data 681 SV * data
595 IV dataoffset 682 UV dataoffset
596 SV * callback 683 SV * callback
597 ALIAS: 684 ALIAS:
598 aio_read = REQ_READ 685 aio_read = REQ_READ
599 aio_write = REQ_WRITE 686 aio_write = REQ_WRITE
600 PROTOTYPE: $$$$$;$ 687 PROTOTYPE: $$$$$;$
… …
646 req->data2ptr = (void *)data; 733 req->data2ptr = (void *)data;
647 } 734 }
648 735
649 send_req (req); 736 send_req (req);
650 } 737 }
738}
739
740void
741aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
742 SV * out_fh
743 SV * in_fh
744 UV in_offset
745 UV length
746 SV * callback
747 PROTOTYPE: $$$$;$
748 CODE:
749{
750 dREQ;
751
752 req->type = REQ_SENDFILE;
753 req->fh = newSVsv (out_fh);
754 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
755 req->fh2 = newSVsv (in_fh);
756 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
757 req->offset = in_offset;
758 req->length = length;
759
760 send_req (req);
651} 761}
652 762
653void 763void
654aio_readahead(fh,offset,length,callback=&PL_sv_undef) 764aio_readahead(fh,offset,length,callback=&PL_sv_undef)
655 SV * fh 765 SV * fh

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