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/cvs/Linux-AIO/AIO.xs
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Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.27 by root, Fri Jul 8 03:10:00 2005 UTC vs.
Revision 1.31 by root, Sun Jul 10 01:02:51 2005 UTC

… …
24# define STACKSIZE ( 512 * sizeof (long)) 24# define STACKSIZE ( 512 * sizeof (long))
25#endif 25#endif
26 26
27enum { 27enum {
28 REQ_QUIT, 28 REQ_QUIT,
29 REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, 29 REQ_OPEN, REQ_CLOSE,
30 REQ_READ, REQ_WRITE, REQ_READAHEAD,
30 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK 31 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
32 REQ_FSYNC, REQ_FDATASYNC,
31}; 33};
32 34
33typedef struct { 35typedef struct {
34 char stack[STACKSIZE]; 36 char stack[STACKSIZE];
35} aio_thread; 37} aio_thread;
… …
237 239
238static sigset_t fullsigset; 240static sigset_t fullsigset;
239 241
240#undef errno 242#undef errno
241#include <asm/unistd.h> 243#include <asm/unistd.h>
244#include <linux/types.h>
242#include <sys/prctl.h> 245#include <sys/prctl.h>
243
244#if BYTE_ORDER == LITTLE_ENDIAN
245# define LONG_LONG_PAIR(HI, LO) LO, HI
246#elif BYTE_ORDER == BIG_ENDIAN
247# define LONG_LONG_PAIR(HI, LO) HI, LO
248#endif
249 246
250#if __alpha || __ia64 || __hppa || __v850__ 247#if __alpha || __ia64 || __hppa || __v850__
251# define stat kernelstat 248# define stat kernelstat
252# define stat64 kernelstat64 249# define stat64 kernelstat64
253# include <asm/stat.h> 250# include <asm/stat.h>
… …
280 aio_req req; 277 aio_req req;
281 int errno; 278 int errno;
282 279
283 /* this is very much kernel-specific :(:(:( */ 280 /* this is very much kernel-specific :(:(:( */
284 /* we rely on gcc's ability to create closures. */ 281 /* we rely on gcc's ability to create closures. */
285 _syscall3(int,read,int,fd,char *,buf,size_t,count) 282 _syscall3(__kernel_size_t, read , unsigned int, fd, char *, buf, __kernel_size_t, count)
286 _syscall3(int,write,int,fd,char *,buf,size_t,count) 283 _syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count)
287 284
288 _syscall3(int,open,char *,pathname,int,flags,mode_t,mode) 285 _syscall3(long, open, char *, pathname, int, flags, int, mode)
289 _syscall1(int,close,int,fd) 286 _syscall1(long, close, unsigned int, fd)
287 _syscall1(long, unlink, char *, filename);
288 _syscall1(long, fsync, unsigned int, fd);
290 289
291#if __NR_pread64 290#ifndef __NR_fdatasync
292 _syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl) 291# define __NR_fdatasync __NR_fsync
293 _syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
294#elif __NR_pread
295 _syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
296 _syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
297#else
298# error "neither pread nor pread64 defined"
299#endif 292#endif
293 _syscall1(long, fdatasync, unsigned int, fd);
300 294
295#if BYTE_ORDER == LITTLE_ENDIAN
296# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
297#elif BYTE_ORDER == BIG_ENDIAN
298# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
299#endif
300
301#ifndef __NR_pread64
302# define __NR_pread64 __NR_pread
303# define __NR_pwrite64 __NR_write
304#endif
305 _syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf,
306 __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
307 _syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf,
308 __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
309 _syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count);
301 310
302#if __NR_stat64 311#if __NR_stat64
303 _syscall2(int,stat64, const char *, filename, struct kernelstat64 *, buf) 312 _syscall2(long, stat64 , const char *, filename, struct kernelstat64 *, buf)
304 _syscall2(int,lstat64, const char *, filename, struct kernelstat64 *, buf) 313 _syscall2(long, lstat64, const char *, filename, struct kernelstat64 *, buf)
305 _syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf) 314 _syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
306#elif __NR_stat 315#elif __NR_stat
307 _syscall2(int,stat, const char *, filename, struct kernelstat *, buf) 316 _syscall2(long, stat , const char *, filename, struct kernelstat *, buf)
308 _syscall2(int,lstat, const char *, filename, struct kernelstat *, buf) 317 _syscall2(long, lstat, const char *, filename, struct kernelstat *, buf)
309 _syscall2(int,fstat, int, fd, struct kernelstat *, buf) 318 _syscall2(long, fstat, int , fd , struct kernelstat *, buf)
310#else 319#else
311# error "neither stat64 nor stat defined" 320# error "neither stat64 nor stat defined"
312#endif 321#endif
313 322
314 _syscall1(int,unlink, char *, filename); 323 /* the following two calls might clobber errno */
315
316 sigprocmask (SIG_SETMASK, &fullsigset, 0); 324 sigprocmask (SIG_SETMASK, &fullsigset, 0);
317 prctl (PR_SET_PDEATHSIG, SIGKILL); 325 prctl (PR_SET_PDEATHSIG, SIGKILL);
318 326
319 /* then loop */ 327 /* then loop */
320 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) 328 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
… …
322 req->thread = thr; 330 req->thread = thr;
323 errno = 0; /* strictly unnecessary */ 331 errno = 0; /* strictly unnecessary */
324 332
325 switch (req->type) 333 switch (req->type)
326 { 334 {
327#if __NR_pread64
328 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length,
329 LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
330 case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length,
331 LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
332#else
333 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 335 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
334 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 336 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
335#endif 337 case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
338
336#if __NR_stat64 339#if __NR_stat64
337 struct kernelstat64 statdata; 340 struct kernelstat64 statdata;
338 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break; 341 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
339 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break; 342 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
340 case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break; 343 case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
341#else 344#else
342 struct kernelstat statdata; 345 struct kernelstat statdata;
343 case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break; 346 case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
344 case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break; 347 case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
345 case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break; 348 case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break;
346#endif 349#endif
350
347 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 351 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
348 case REQ_CLOSE: req->result = close (req->fd); break; 352 case REQ_CLOSE: req->result = close (req->fd); break;
349 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 353 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
354
355 case REQ_FSYNC: req->result = fsync (req->fd); break;
356 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
350 357
351 case REQ_QUIT: 358 case REQ_QUIT:
352 default:
353 write (respipe[1], (void *)&req, sizeof (req)); 359 write (respipe[1], (void *)&req, sizeof (req));
354 return 0; 360 return 0;
361
362 default:
363 req->result = ENOSYS;
364 break;
355 } 365 }
356 366
357 req->errorno = errno; 367 req->errorno = errno;
358 write (respipe[1], (void *)&req, sizeof (req)); 368 write (respipe[1], (void *)&req, sizeof (req));
359 } 369 }
… …
392void 402void
393max_parallel(nthreads) 403max_parallel(nthreads)
394 int nthreads 404 int nthreads
395 PROTOTYPE: $ 405 PROTOTYPE: $
396 CODE: 406 CODE:
407{
397 int cur = started; 408 int cur = started;
398 while (cur > nthreads) 409 while (cur > nthreads)
399 { 410 {
400 end_thread (); 411 end_thread ();
401 cur--; 412 cur--;
… …
404 while (started > nthreads) 415 while (started > nthreads)
405 { 416 {
406 poll_wait (); 417 poll_wait ();
407 poll_cb (aTHX); 418 poll_cb (aTHX);
408 } 419 }
420}
409 421
410void 422void
411aio_open(pathname,flags,mode,callback) 423aio_open(pathname,flags,mode,callback)
412 SV * pathname 424 SV * pathname
413 int flags 425 int flags
414 int mode 426 int mode
415 SV * callback 427 SV * callback
416 PROTOTYPE: $$$$ 428 PROTOTYPE: $$$$
417 CODE: 429 CODE:
430{
418 aio_req req; 431 aio_req req;
419 432
420 Newz (0, req, 1, aio_cb); 433 Newz (0, req, 1, aio_cb);
421 434
422 if (!req) 435 if (!req)
… …
428 req->fd = flags; 441 req->fd = flags;
429 req->mode = mode; 442 req->mode = mode;
430 req->callback = SvREFCNT_inc (callback); 443 req->callback = SvREFCNT_inc (callback);
431 444
432 send_req (req); 445 send_req (req);
446}
433 447
434void 448void
435aio_close(fh,callback) 449aio_close(fh,callback)
436 InputStream fh 450 InputStream fh
437 SV * callback 451 SV * callback
438 PROTOTYPE: $$ 452 PROTOTYPE: $$
453 ALIAS:
454 aio_close = REQ_CLOSE
455 aio_fsync = REQ_FSYNC
456 aio_fdatasync = REQ_FDATASYNC
439 CODE: 457 CODE:
458{
440 aio_req req; 459 aio_req req;
441 460
442 Newz (0, req, 1, aio_cb); 461 Newz (0, req, 1, aio_cb);
443 462
444 if (!req) 463 if (!req)
445 croak ("out of memory during aio_req allocation"); 464 croak ("out of memory during aio_req allocation");
446 465
447 req->type = REQ_CLOSE; 466 req->type = ix;
448 req->fd = PerlIO_fileno (fh); 467 req->fd = PerlIO_fileno (fh);
449 req->callback = SvREFCNT_inc (callback); 468 req->callback = SvREFCNT_inc (callback);
450 469
451 send_req (req); 470 send_req (req);
471}
452 472
453void 473void
454aio_read(fh,offset,length,data,dataoffset,callback) 474aio_read(fh,offset,length,data,dataoffset,callback)
455 InputStream fh 475 InputStream fh
456 UV offset 476 UV offset
… …
473 PROTOTYPE: $$$$$$ 493 PROTOTYPE: $$$$$$
474 CODE: 494 CODE:
475 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); 495 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
476 496
477void 497void
498aio_readahead(fh,offset,length,callback)
499 InputStream fh
500 UV offset
501 IV length
502 SV * callback
503 PROTOTYPE: $$$$
504 CODE:
505{
506 aio_req req;
507
508 if (length < 0)
509 croak ("length must not be negative");
510
511 Newz (0, req, 1, aio_cb);
512
513 if (!req)
514 croak ("out of memory during aio_req allocation");
515
516 req->type = REQ_READAHEAD;
517 req->fd = PerlIO_fileno (fh);
518 req->offset = offset;
519 req->length = length;
520 req->callback = SvREFCNT_inc (callback);
521
522 send_req (req);
523}
524
525void
478aio_stat(fh_or_path,callback) 526aio_stat(fh_or_path,callback)
479 SV * fh_or_path 527 SV * fh_or_path
480 SV * callback 528 SV * callback
481 PROTOTYPE: $$ 529 PROTOTYPE: $$
482 ALIAS: 530 ALIAS:
483 aio_lstat = 1 531 aio_lstat = 1
484 CODE: 532 CODE:
533{
485 aio_req req; 534 aio_req req;
486 535
487 Newz (0, req, 1, aio_cb); 536 Newz (0, req, 1, aio_cb);
488 537
489 if (!req) 538 if (!req)
… …
507 } 556 }
508 557
509 req->callback = SvREFCNT_inc (callback); 558 req->callback = SvREFCNT_inc (callback);
510 559
511 send_req (req); 560 send_req (req);
561}
512 562
513void 563void
514aio_unlink(pathname,callback) 564aio_unlink(pathname,callback)
515 SV * pathname 565 SV * pathname
516 SV * callback 566 SV * callback
517 PROTOTYPE: $$ 567 PROTOTYPE: $$
518 CODE: 568 CODE:
569{
519 aio_req req; 570 aio_req req;
520 571
521 Newz (0, req, 1, aio_cb); 572 Newz (0, req, 1, aio_cb);
522 573
523 if (!req) 574 if (!req)
… …
527 req->data = newSVsv (pathname); 578 req->data = newSVsv (pathname);
528 req->dataptr = SvPV_nolen (req->data); 579 req->dataptr = SvPV_nolen (req->data);
529 req->callback = SvREFCNT_inc (callback); 580 req->callback = SvREFCNT_inc (callback);
530 581
531 send_req (req); 582 send_req (req);
583}
532 584
533int 585int
534poll_fileno() 586poll_fileno()
535 PROTOTYPE: 587 PROTOTYPE:
536 CODE: 588 CODE:

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