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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 1.34 by root, Tue Aug 23 00:03:14 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# else
29# error sendfile support requested but not available
30# endif
31#endif
23 32
24#if __ia64 33#if __ia64
25# define STACKSIZE 65536 34# define STACKSIZE 65536
26#else 35#else
27# define STACKSIZE 4096 36# define STACKSIZE 4096
… …
29 38
30enum { 39enum {
31 REQ_QUIT, 40 REQ_QUIT,
32 REQ_OPEN, REQ_CLOSE, 41 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD, 42 REQ_READ, REQ_WRITE, REQ_READAHEAD,
43 REQ_SENDFILE,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 44 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC, 45 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR, 46 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK, 47 REQ_SYMLINK,
38}; 48};
… …
40typedef struct aio_cb { 50typedef struct aio_cb {
41 struct aio_cb *volatile next; 51 struct aio_cb *volatile next;
42 52
43 int type; 53 int type;
44 54
45 int fd; 55 int fd, fd2;
46 off_t offset; 56 off_t offset;
47 size_t length; 57 size_t length;
48 ssize_t result; 58 ssize_t result;
49 mode_t mode; /* open */ 59 mode_t mode; /* open */
50 int errorno; 60 int errorno;
51 SV *data, *callback, *fh; 61 SV *data, *callback;
62 SV *fh, *fh2;
52 void *dataptr, *data2ptr; 63 void *dataptr, *data2ptr;
53 STRLEN dataoffset; 64 STRLEN dataoffset;
54 65
55 Stat_t *statdata; 66 Stat_t *statdata;
56} aio_cb; 67} aio_cb;
… …
74 if (req->data) 85 if (req->data)
75 SvREFCNT_dec (req->data); 86 SvREFCNT_dec (req->data);
76 87
77 if (req->fh) 88 if (req->fh)
78 SvREFCNT_dec (req->fh); 89 SvREFCNT_dec (req->fh);
90
91 if (req->fh2)
92 SvREFCNT_dec (req->fh2);
79 93
80 if (req->statdata) 94 if (req->statdata)
81 Safefree (req->statdata); 95 Safefree (req->statdata);
82 96
83 if (req->callback) 97 if (req->callback)
… …
207 pthread_t tid; 221 pthread_t tid;
208 pthread_attr_t attr; 222 pthread_attr_t attr;
209 223
210 pthread_attr_init (&attr); 224 pthread_attr_init (&attr);
211 pthread_attr_setstacksize (&attr, STACKSIZE); 225 pthread_attr_setstacksize (&attr, STACKSIZE);
212// pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); 226 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
213 227
214 sigfillset (&fullsigset); 228 sigfillset (&fullsigset);
215 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); 229 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
216 230
217 if (pthread_create (&tid, &attr, aio_proc, 0) == 0) 231 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
… …
416 430
417 errno = 0; 431 errno = 0;
418} 432}
419#endif 433#endif
420 434
435/* sendfile always needs emulation */
436static ssize_t
437sendfile_ (int ofd, int ifd, off_t offset, size_t count)
438{
439 ssize_t res;
440
441 if (!count)
442 return 0;
443
444#if __linux
445 res = sendfile (ofd, ifd, &offset, count);
446
447#elif __freebsd
448 /*
449 * Of course, the freebsd sendfile is a dire hack with no thoughts
450 * wasted on making it similar to other i/o functions.
451 */
452 {
453 off_t sbytes;
454 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
455
456 if (!res && errno == EAGAIN)
457 /* maybe on others, too, as usual, the manpage leaves you guessing */
458 res = sbytes;
459 }
460
461#elif __hpux
462 res = sendfile (ofd, ifd, offset, count, 0, 0);
463
464#else
465 res = -1;
466 errno = ENOSYS;
467#endif
468
469 if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK))
470 {
471 /* emulate sendfile. this is a major pain in the ass */
472 char *buf = malloc (4096);
473 res = 0;
474
475 for (;;)
476 {
477 ssize_t cnt;
478
479 cnt = pread (ifd, buf, 4096, offset);
480
481 if (cnt <= 0)
482 {
483 if (cnt && !res) res = -1;
484 break;
485 }
486
487 cnt = write (ofd, buf, cnt);
488
489 if (cnt <= 0)
490 {
491 if (cnt && !res) res = -1;
492 break;
493 }
494
495 offset += cnt;
496 res += cnt;
497 }
498
499 {
500 int errorno = errno;
501 free (buf);
502 errno = errorno;
503 }
504 }
505
506 return res;
507}
508
421/*****************************************************************************/ 509/*****************************************************************************/
422 510
423static void * 511static void *
424aio_proc (void *thr_arg) 512aio_proc (void *thr_arg)
425{ 513{
… …
456 { 544 {
457 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 545 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; 546 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
459 547
460 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 548 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
549 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
461 550
462 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 551 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
463 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 552 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
464 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 553 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
465 554
… …
588 677
589void 678void
590aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 679aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
591 SV * fh 680 SV * fh
592 UV offset 681 UV offset
593 IV length 682 UV length
594 SV * data 683 SV * data
595 IV dataoffset 684 UV dataoffset
596 SV * callback 685 SV * callback
597 ALIAS: 686 ALIAS:
598 aio_read = REQ_READ 687 aio_read = REQ_READ
599 aio_write = REQ_WRITE 688 aio_write = REQ_WRITE
600 PROTOTYPE: $$$$$;$ 689 PROTOTYPE: $$$$$;$
… …
646 req->data2ptr = (void *)data; 735 req->data2ptr = (void *)data;
647 } 736 }
648 737
649 send_req (req); 738 send_req (req);
650 } 739 }
740}
741
742void
743aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
744 SV * out_fh
745 SV * in_fh
746 UV in_offset
747 UV length
748 SV * callback
749 PROTOTYPE: $$$$;$
750 CODE:
751{
752 dREQ;
753
754 req->type = REQ_SENDFILE;
755 req->fh = newSVsv (out_fh);
756 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
757 req->fh2 = newSVsv (in_fh);
758 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
759 req->offset = in_offset;
760 req->length = length;
761
762 send_req (req);
651} 763}
652 764
653void 765void
654aio_readahead(fh,offset,length,callback=&PL_sv_undef) 766aio_readahead(fh,offset,length,callback=&PL_sv_undef)
655 SV * fh 767 SV * fh

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