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/cvs/IO-AIO/AIO.xs
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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.30 by root, Thu Aug 18 16:32:10 2005 UTC vs.
Revision 1.36 by root, Tue Aug 23 01:18:04 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# elif __solaris /* not yet */
29# include <sys/sendfile.h>
30# else
31# error sendfile support requested but not available
32# endif
33#endif
23 34
24#if __ia64 35#if __ia64
25# define STACKSIZE 65536 36# define STACKSIZE 65536
26#else 37#else
27# define STACKSIZE 4096 38# define STACKSIZE 4096
… …
29 40
30enum { 41enum {
31 REQ_QUIT, 42 REQ_QUIT,
32 REQ_OPEN, REQ_CLOSE, 43 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD, 44 REQ_READ, REQ_WRITE, REQ_READAHEAD,
45 REQ_SENDFILE,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 46 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC, 47 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR, 48 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK, 49 REQ_SYMLINK,
38}; 50};
… …
40typedef struct aio_cb { 52typedef struct aio_cb {
41 struct aio_cb *volatile next; 53 struct aio_cb *volatile next;
42 54
43 int type; 55 int type;
44 56
45 int fd; 57 int fd, fd2;
46 off_t offset; 58 off_t offset;
47 size_t length; 59 size_t length;
48 ssize_t result; 60 ssize_t result;
49 mode_t mode; /* open */ 61 mode_t mode; /* open */
50 int errorno; 62 int errorno;
51 SV *data, *callback, *fh; 63 SV *data, *callback;
64 SV *fh, *fh2;
52 void *dataptr, *data2ptr; 65 void *dataptr, *data2ptr;
53 STRLEN dataoffset; 66 STRLEN dataoffset;
54 67
55 Stat_t *statdata; 68 Stat_t *statdata;
56} aio_cb; 69} aio_cb;
… …
74 if (req->data) 87 if (req->data)
75 SvREFCNT_dec (req->data); 88 SvREFCNT_dec (req->data);
76 89
77 if (req->fh) 90 if (req->fh)
78 SvREFCNT_dec (req->fh); 91 SvREFCNT_dec (req->fh);
92
93 if (req->fh2)
94 SvREFCNT_dec (req->fh2);
79 95
80 if (req->statdata) 96 if (req->statdata)
81 Safefree (req->statdata); 97 Safefree (req->statdata);
82 98
83 if (req->callback) 99 if (req->callback)
… …
207 pthread_t tid; 223 pthread_t tid;
208 pthread_attr_t attr; 224 pthread_attr_t attr;
209 225
210 pthread_attr_init (&attr); 226 pthread_attr_init (&attr);
211 pthread_attr_setstacksize (&attr, STACKSIZE); 227 pthread_attr_setstacksize (&attr, STACKSIZE);
212// pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); 228 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
213 229
214 sigfillset (&fullsigset); 230 sigfillset (&fullsigset);
215 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); 231 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
216 232
217 if (pthread_create (&tid, &attr, aio_proc, 0) == 0) 233 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
… …
416 432
417 errno = 0; 433 errno = 0;
418} 434}
419#endif 435#endif
420 436
437/* sendfile always needs emulation */
438static ssize_t
439sendfile_ (int ofd, int ifd, off_t offset, size_t count)
440{
441 ssize_t res;
442
443 if (!count)
444 return 0;
445
446#if HAVE_SENDFILE
447# if __linux
448 res = sendfile (ofd, ifd, &offset, count);
449
450# elif __freebsd
451 /*
452 * Of course, the freebsd sendfile is a dire hack with no thoughts
453 * wasted on making it similar to other I/O functions.
454 */
455 {
456 off_t sbytes;
457 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
458
459 if (res < 0 && sbytes)
460 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
461 res = sbytes;
462 }
463
464# elif __hpux
465 res = sendfile (ofd, ifd, offset, count, 0, 0);
466
467# elif __solaris
468 {
469 struct sendfilevec vec;
470 size_t sbytes;
471
472 vec.sfv_fd = ifd;
473 vec.sfv_flag = 0;
474 vec.sfv_off = offset;
475 vec.sfv_len = count;
476
477 res = sendfilev (ofd, &vec, 1, &sbytes);
478
479 if (res < 0 && sbytes)
480 res = sbytes;
481 }
482
483# else
484 res = -1;
485 errno = ENOSYS;
486# endif
487#endif
488
489 if (res < 0
490 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
491#if __solaris
492 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
493#endif
494 )
495 )
496 {
497 /* emulate sendfile. this is a major pain in the ass */
498 char *buf = malloc (4096);
499 res = 0;
500
501 for (;;)
502 {
503 ssize_t cnt;
504
505 cnt = pread (ifd, buf, 4096, offset);
506
507 if (cnt <= 0)
508 {
509 if (cnt && !res) res = -1;
510 break;
511 }
512
513 cnt = write (ofd, buf, cnt);
514
515 if (cnt <= 0)
516 {
517 if (cnt && !res) res = -1;
518 break;
519 }
520
521 offset += cnt;
522 res += cnt;
523 }
524
525 {
526 int errorno = errno;
527 free (buf);
528 errno = errorno;
529 }
530 }
531
532 return res;
533}
534
421/*****************************************************************************/ 535/*****************************************************************************/
422 536
423static void * 537static void *
424aio_proc (void *thr_arg) 538aio_proc (void *thr_arg)
425{ 539{
… …
456 { 570 {
457 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 571 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; 572 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
459 573
460 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 574 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
575 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
461 576
462 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 577 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
463 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 578 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
464 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 579 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
465 580
… …
588 703
589void 704void
590aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 705aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
591 SV * fh 706 SV * fh
592 UV offset 707 UV offset
593 IV length 708 UV length
594 SV * data 709 SV * data
595 IV dataoffset 710 UV dataoffset
596 SV * callback 711 SV * callback
597 ALIAS: 712 ALIAS:
598 aio_read = REQ_READ 713 aio_read = REQ_READ
599 aio_write = REQ_WRITE 714 aio_write = REQ_WRITE
600 PROTOTYPE: $$$$$;$ 715 PROTOTYPE: $$$$$;$
… …
646 req->data2ptr = (void *)data; 761 req->data2ptr = (void *)data;
647 } 762 }
648 763
649 send_req (req); 764 send_req (req);
650 } 765 }
766}
767
768void
769aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
770 SV * out_fh
771 SV * in_fh
772 UV in_offset
773 UV length
774 SV * callback
775 PROTOTYPE: $$$$;$
776 CODE:
777{
778 dREQ;
779
780 req->type = REQ_SENDFILE;
781 req->fh = newSVsv (out_fh);
782 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
783 req->fh2 = newSVsv (in_fh);
784 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
785 req->offset = in_offset;
786 req->length = length;
787
788 send_req (req);
651} 789}
652 790
653void 791void
654aio_readahead(fh,offset,length,callback=&PL_sv_undef) 792aio_readahead(fh,offset,length,callback=&PL_sv_undef)
655 SV * fh 793 SV * fh

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