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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.7 by root, Mon Jul 11 01:49:14 2005 UTC vs.
Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC

1#define _XOPEN_SOURCE 500
2
1#include "EXTERN.h" 3#include "EXTERN.h"
2#include "perl.h" 4#include "perl.h"
3#include "XSUB.h" 5#include "XSUB.h"
4 6
5#include <sys/types.h> 7#include <sys/types.h>
6#include <sys/stat.h> 8#include <sys/stat.h>
9
7#include <unistd.h> 10#include <unistd.h>
8#include <fcntl.h> 11#include <fcntl.h>
9#include <signal.h> 12#include <signal.h>
10#include <sched.h> 13#include <sched.h>
11#include <endian.h> 14#if __linux
15#include <sys/syscall.h>
16#endif
12 17
13#include <pthread.h> 18#include <pthread.h>
14#include <sys/syscall.h>
15 19
16typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
17typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
18typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
19 23
… …
50} aio_cb; 54} aio_cb;
51 55
52typedef aio_cb *aio_req; 56typedef aio_cb *aio_req;
53 57
54static int started; 58static int started;
55static int nreqs; 59static volatile int nreqs;
56static int max_outstanding = 1<<30; 60static int max_outstanding = 1<<30;
57static int respipe [2]; 61static int respipe [2];
58 62
59static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 63static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
60static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 64static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
… …
64static volatile aio_req ress, rese; /* queue start, queue end */ 68static volatile aio_req ress, rese; /* queue start, queue end */
65 69
66static void 70static void
67poll_wait () 71poll_wait ()
68{ 72{
69 if (!nreqs) 73 if (nreqs && !ress)
70 return; 74 {
71
72 fd_set rfd; 75 fd_set rfd;
73 FD_ZERO(&rfd); 76 FD_ZERO(&rfd);
74 FD_SET(respipe [0], &rfd); 77 FD_SET(respipe [0], &rfd);
75 78
76 select (respipe [0] + 1, &rfd, 0, 0, 0); 79 select (respipe [0] + 1, &rfd, 0, 0, 0);
80 }
77} 81}
78 82
79static int 83static int
80poll_cb () 84poll_cb ()
81{ 85{
82 dSP; 86 dSP;
83 int count = 0; 87 int count = 0;
84 aio_req req; 88 aio_req req, prv;
85 89
90 static int rl;//D
91 //printf ("%d ENTER\n", ++rl);//D
92
93 pthread_mutex_lock (&reslock);
94
86 { 95 {
87 /* read and signals sent by the worker threads */ 96 /* read any signals sent by the worker threads */
88 char buf [32]; 97 char buf [32];
89 while (read (respipe [0], buf, 32) > 0) 98 while (read (respipe [0], buf, 32) > 0)
90 ; 99 ;
91 } 100 }
92 101
93 for (;;) 102 req = ress;
103 ress = rese = 0;
104
105 pthread_mutex_unlock (&reslock);
106
107 while (req)
94 { 108 {
95 pthread_mutex_lock (&reslock);
96
97 req = ress;
98
99 if (ress)
100 {
101 ress = ress->next;
102 if (!ress) rese = 0;
103 }
104
105 pthread_mutex_unlock (&reslock);
106
107 if (!req)
108 break;
109
110 nreqs--; 109 nreqs--;
110 //printf ("%d count %d %p->%p\n", rl, count, req, req->next);//D
111 111
112 if (req->type == REQ_QUIT) 112 if (req->type == REQ_QUIT)
113 started--; 113 started--;
114 else 114 else
115 { 115 {
… …
148 148
149 PUSHMARK (SP); 149 PUSHMARK (SP);
150 XPUSHs (fh); 150 XPUSHs (fh);
151 } 151 }
152 152
153 if (SvOK (req->callback))
154 {
153 PUTBACK; 155 PUTBACK;
154 call_sv (req->callback, G_VOID | G_EVAL); 156 call_sv (req->callback, G_VOID | G_EVAL);
155 SPAGAIN; 157 SPAGAIN;
158 }
156 159
157 if (req->callback) 160 if (req->callback)
158 SvREFCNT_dec (req->callback); 161 SvREFCNT_dec (req->callback);
159 162
160 errno = errorno; 163 errno = errorno;
161 count++; 164 count++;
162 } 165 }
163 166
167 prv = req;
168 req = req->next;
164 Safefree (req); 169 Safefree (prv);
170
171 /* TODO: croak on errors? */
165 } 172 }
166 173
174 //printf ("%d LEAVE %p %p\n", rl--, ress, rese);//D
167 return count; 175 return count;
168} 176}
169 177
170static void *aio_proc(void *arg); 178static void *aio_proc(void *arg);
171 179
… …
306 314
307 type = req->type; 315 type = req->type;
308 316
309 switch (type) 317 switch (type)
310 { 318 {
311 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; 319 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
312 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; 320 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
313#if SYS_readahead 321#if SYS_readahead
314 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 322 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
315#else 323#else
316 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; 324 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
317#endif 325#endif
… …
361 return 0; 369 return 0;
362} 370}
363 371
364MODULE = IO::AIO PACKAGE = IO::AIO 372MODULE = IO::AIO PACKAGE = IO::AIO
365 373
374PROTOTYPES: ENABLE
375
366BOOT: 376BOOT:
367{ 377{
368 if (pipe (respipe)) 378 if (pipe (respipe))
369 croak ("unable to initialize result pipe"); 379 croak ("unable to initialize result pipe");
370 380
… …
410 CODE: 420 CODE:
411 RETVAL = max_outstanding; 421 RETVAL = max_outstanding;
412 max_outstanding = nreqs; 422 max_outstanding = nreqs;
413 423
414void 424void
415aio_open(pathname,flags,mode,callback) 425aio_open(pathname,flags,mode,callback=&PL_sv_undef)
416 SV * pathname 426 SV * pathname
417 int flags 427 int flags
418 int mode 428 int mode
419 SV * callback 429 SV * callback
420 PROTOTYPE: $$$$ 430 PROTOTYPE: $$$;$
421 CODE: 431 CODE:
422{ 432{
423 aio_req req; 433 aio_req req;
424 434
425 Newz (0, req, 1, aio_cb); 435 Newz (0, req, 1, aio_cb);
… …
436 446
437 send_req (req); 447 send_req (req);
438} 448}
439 449
440void 450void
441aio_close(fh,callback) 451aio_close(fh,callback=&PL_sv_undef)
442 InputStream fh 452 InputStream fh
443 SV * callback 453 SV * callback
444 PROTOTYPE: $$ 454 PROTOTYPE: $;$
445 ALIAS: 455 ALIAS:
446 aio_close = REQ_CLOSE 456 aio_close = REQ_CLOSE
447 aio_fsync = REQ_FSYNC 457 aio_fsync = REQ_FSYNC
448 aio_fdatasync = REQ_FDATASYNC 458 aio_fdatasync = REQ_FDATASYNC
449 CODE: 459 CODE:
… …
461 471
462 send_req (req); 472 send_req (req);
463} 473}
464 474
465void 475void
466aio_read(fh,offset,length,data,dataoffset,callback) 476aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
467 InputStream fh 477 InputStream fh
468 UV offset 478 UV offset
469 IV length 479 IV length
470 SV * data 480 SV * data
471 IV dataoffset 481 IV dataoffset
472 SV * callback 482 SV * callback
473 PROTOTYPE: $$$$$$ 483 PROTOTYPE: $$$$$;$
474 CODE: 484 CODE:
475 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); 485 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
476 486
477void 487void
478aio_write(fh,offset,length,data,dataoffset,callback) 488aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
479 OutputStream fh 489 OutputStream fh
480 UV offset 490 UV offset
481 IV length 491 IV length
482 SV * data 492 SV * data
483 IV dataoffset 493 IV dataoffset
484 SV * callback 494 SV * callback
485 PROTOTYPE: $$$$$$ 495 PROTOTYPE: $$$$$;$
486 CODE: 496 CODE:
487 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); 497 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
488 498
489void 499void
490aio_readahead(fh,offset,length,callback) 500aio_readahead(fh,offset,length,callback=&PL_sv_undef)
491 InputStream fh 501 InputStream fh
492 UV offset 502 UV offset
493 IV length 503 IV length
494 SV * callback 504 SV * callback
495 PROTOTYPE: $$$$ 505 PROTOTYPE: $$$;$
496 CODE: 506 CODE:
497{ 507{
498 aio_req req; 508 aio_req req;
499 509
500 if (length < 0) 510 if (length < 0)
… …
513 523
514 send_req (req); 524 send_req (req);
515} 525}
516 526
517void 527void
518aio_stat(fh_or_path,callback) 528aio_stat(fh_or_path,callback=&PL_sv_undef)
519 SV * fh_or_path 529 SV * fh_or_path
520 SV * callback 530 SV * callback
521 PROTOTYPE: $$
522 ALIAS: 531 ALIAS:
532 aio_stat = REQ_STAT
523 aio_lstat = 1 533 aio_lstat = REQ_LSTAT
524 CODE: 534 CODE:
525{ 535{
526 aio_req req; 536 aio_req req;
527 537
528 Newz (0, req, 1, aio_cb); 538 Newz (0, req, 1, aio_cb);
… …
535 if (!req->statdata) 545 if (!req->statdata)
536 croak ("out of memory during aio_req->statdata allocation"); 546 croak ("out of memory during aio_req->statdata allocation");
537 547
538 if (SvPOK (fh_or_path)) 548 if (SvPOK (fh_or_path))
539 { 549 {
540 req->type = ix ? REQ_LSTAT : REQ_STAT; 550 req->type = ix;
541 req->data = newSVsv (fh_or_path); 551 req->data = newSVsv (fh_or_path);
542 req->dataptr = SvPV_nolen (req->data); 552 req->dataptr = SvPV_nolen (req->data);
543 } 553 }
544 else 554 else
545 { 555 {
… …
551 561
552 send_req (req); 562 send_req (req);
553} 563}
554 564
555void 565void
556aio_unlink(pathname,callback) 566aio_unlink(pathname,callback=&PL_sv_undef)
557 SV * pathname 567 SV * pathname
558 SV * callback 568 SV * callback
559 PROTOTYPE: $$
560 CODE: 569 CODE:
561{ 570{
562 aio_req req; 571 aio_req req;
563 572
564 Newz (0, req, 1, aio_cb); 573 Newz (0, req, 1, aio_cb);

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