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/cvs/Linux-AIO/AIO.xs
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Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.28 by root, Sat Jul 9 04:02:54 2005 UTC vs.
Revision 1.32 by root, Tue Jul 12 10:51:09 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;
… …
167} 169}
168 170
169static void 171static void
170poll_wait () 172poll_wait ()
171{ 173{
174 if (!nreqs)
175 return;
176
172 fd_set rfd; 177 fd_set rfd;
173 FD_ZERO(&rfd); 178 FD_ZERO(&rfd);
174 FD_SET(respipe[0], &rfd); 179 FD_SET(respipe[0], &rfd);
175 180
176 select (respipe[0] + 1, &rfd, 0, 0, 0); 181 select (respipe[0] + 1, &rfd, 0, 0, 0);
… …
236} 241}
237 242
238static sigset_t fullsigset; 243static sigset_t fullsigset;
239 244
240#undef errno 245#undef errno
241#include <asm/unistd.h> 246#include <linux/unistd.h>
242#include <linux/types.h> 247#include <linux/types.h>
243#include <sys/prctl.h> 248#include <sys/prctl.h>
244
245#if BYTE_ORDER == LITTLE_ENDIAN
246# define LONG_LONG_PAIR(HI, LO) LO, HI
247#elif BYTE_ORDER == BIG_ENDIAN
248# define LONG_LONG_PAIR(HI, LO) HI, LO
249#endif
250 249
251#if __alpha || __ia64 || __hppa || __v850__ 250#if __alpha || __ia64 || __hppa || __v850__
252# define stat kernelstat 251# define stat kernelstat
253# define stat64 kernelstat64 252# define stat64 kernelstat64
254# include <asm/stat.h> 253# include <asm/stat.h>
… …
281 aio_req req; 280 aio_req req;
282 int errno; 281 int errno;
283 282
284 /* this is very much kernel-specific :(:(:( */ 283 /* this is very much kernel-specific :(:(:( */
285 /* we rely on gcc's ability to create closures. */ 284 /* we rely on gcc's ability to create closures. */
286 _syscall3(__kernel_size_t,read,unsigned int,fd,char *,buf,__kernel_size_t,count) 285 _syscall3(__kernel_size_t, read , unsigned int, fd, char *, buf, __kernel_size_t, count)
287 _syscall3(__kernel_size_t,write,unsigned int,fd,char *,buf,__kernel_size_t,count) 286 _syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count)
288 287
289 _syscall3(int,open,char *,pathname,int,flags,int,mode) 288 _syscall3(long, open, char *, pathname, int, flags, int, mode)
290 _syscall1(int,close,unsigned int,fd) 289 _syscall1(long, close, unsigned int, fd)
290 _syscall1(long, unlink, char *, filename);
291 _syscall1(long, fsync, unsigned int, fd);
292
293#ifndef __NR_fdatasync
294# define __NR_fdatasync __NR_fsync
295#endif
296 _syscall1(long, fdatasync, unsigned int, fd);
297
298#if BYTE_ORDER == LITTLE_ENDIAN
299# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
300#elif BYTE_ORDER == BIG_ENDIAN
301# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
302#endif
291 303
292#ifndef __NR_pread64 304#ifndef __NR_pread64
293# define __NR_pread64 __NR_pread 305# define __NR_pread64 __NR_pread
294# define __NR_pwrite64 __NR_write 306# define __NR_pwrite64 __NR_write
295#endif 307#endif
296 _syscall5(__kernel_ssize_t,pread64,unsigned int,fd,char *,buf,__kernel_size_t,count,unsigned int,offset_lh,unsigned int,offset_hl) 308 _syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf,
297 _syscall5(__kernel_ssize_t,pwrite64,unsigned int,fd,char *,buf,__kernel_size_t,count,unsigned int,offset_lh,unsigned int,offset_hl) 309 __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
310 _syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf,
311 __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
312 _syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count);
298 313
299#if __NR_stat64 314#if __NR_stat64
300 _syscall2(int,stat64, const char *, filename, struct kernelstat64 *, buf) 315 _syscall2(long, stat64 , const char *, filename, struct kernelstat64 *, buf)
301 _syscall2(int,lstat64, const char *, filename, struct kernelstat64 *, buf) 316 _syscall2(long, lstat64, const char *, filename, struct kernelstat64 *, buf)
302 _syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf) 317 _syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
303#elif __NR_stat 318#elif __NR_stat
304 _syscall2(int,stat, const char *, filename, struct kernelstat *, buf) 319 _syscall2(long, stat , const char *, filename, struct kernelstat *, buf)
305 _syscall2(int,lstat, const char *, filename, struct kernelstat *, buf) 320 _syscall2(long, lstat, const char *, filename, struct kernelstat *, buf)
306 _syscall2(int,fstat, int, fd, struct kernelstat *, buf) 321 _syscall2(long, fstat, int , fd , struct kernelstat *, buf)
307#else 322#else
308# error "neither stat64 nor stat defined" 323# error "neither stat64 nor stat defined"
309#endif 324#endif
310 325
311 _syscall1(int,unlink, char *, filename); 326 /* the following two calls might clobber errno */
312
313 sigprocmask (SIG_SETMASK, &fullsigset, 0); 327 sigprocmask (SIG_SETMASK, &fullsigset, 0);
314 prctl (PR_SET_PDEATHSIG, SIGKILL); 328 prctl (PR_SET_PDEATHSIG, SIGKILL);
315 329
316 /* then loop */ 330 /* then loop */
317 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) 331 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
… …
319 req->thread = thr; 333 req->thread = thr;
320 errno = 0; /* strictly unnecessary */ 334 errno = 0; /* strictly unnecessary */
321 335
322 switch (req->type) 336 switch (req->type)
323 { 337 {
324 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, 338 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
325 LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
326 case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, 339 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
327 LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break; 340 case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
341
328#if __NR_stat64 342#if __NR_stat64
329 struct kernelstat64 statdata; 343 struct kernelstat64 statdata;
330 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break; 344 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
331 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break; 345 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
332 case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break; 346 case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
333#else 347#else
334 struct kernelstat statdata; 348 struct kernelstat statdata;
335 case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break; 349 case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
336 case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break; 350 case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
337 case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break; 351 case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break;
338#endif 352#endif
353
339 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 354 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
340 case REQ_CLOSE: req->result = close (req->fd); break; 355 case REQ_CLOSE: req->result = close (req->fd); break;
341 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 356 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
357
358 case REQ_FSYNC: req->result = fsync (req->fd); break;
359 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
342 360
343 case REQ_QUIT: 361 case REQ_QUIT:
344 default:
345 write (respipe[1], (void *)&req, sizeof (req)); 362 write (respipe[1], (void *)&req, sizeof (req));
346 return 0; 363 return 0;
364
365 default:
366 req->result = ENOSYS;
367 break;
347 } 368 }
348 369
349 req->errorno = errno; 370 req->errorno = errno;
350 write (respipe[1], (void *)&req, sizeof (req)); 371 write (respipe[1], (void *)&req, sizeof (req));
351 } 372 }
… …
384void 405void
385max_parallel(nthreads) 406max_parallel(nthreads)
386 int nthreads 407 int nthreads
387 PROTOTYPE: $ 408 PROTOTYPE: $
388 CODE: 409 CODE:
410{
389 int cur = started; 411 int cur = started;
390 while (cur > nthreads) 412 while (cur > nthreads)
391 { 413 {
392 end_thread (); 414 end_thread ();
393 cur--; 415 cur--;
… …
396 while (started > nthreads) 418 while (started > nthreads)
397 { 419 {
398 poll_wait (); 420 poll_wait ();
399 poll_cb (aTHX); 421 poll_cb (aTHX);
400 } 422 }
423}
401 424
402void 425void
403aio_open(pathname,flags,mode,callback) 426aio_open(pathname,flags,mode,callback)
404 SV * pathname 427 SV * pathname
405 int flags 428 int flags
406 int mode 429 int mode
407 SV * callback 430 SV * callback
408 PROTOTYPE: $$$$ 431 PROTOTYPE: $$$$
409 CODE: 432 CODE:
433{
410 aio_req req; 434 aio_req req;
411 435
412 Newz (0, req, 1, aio_cb); 436 Newz (0, req, 1, aio_cb);
413 437
414 if (!req) 438 if (!req)
… …
420 req->fd = flags; 444 req->fd = flags;
421 req->mode = mode; 445 req->mode = mode;
422 req->callback = SvREFCNT_inc (callback); 446 req->callback = SvREFCNT_inc (callback);
423 447
424 send_req (req); 448 send_req (req);
449}
425 450
426void 451void
427aio_close(fh,callback) 452aio_close(fh,callback)
428 InputStream fh 453 InputStream fh
429 SV * callback 454 SV * callback
430 PROTOTYPE: $$ 455 PROTOTYPE: $$
456 ALIAS:
457 aio_close = REQ_CLOSE
458 aio_fsync = REQ_FSYNC
459 aio_fdatasync = REQ_FDATASYNC
431 CODE: 460 CODE:
461{
432 aio_req req; 462 aio_req req;
433 463
434 Newz (0, req, 1, aio_cb); 464 Newz (0, req, 1, aio_cb);
435 465
436 if (!req) 466 if (!req)
437 croak ("out of memory during aio_req allocation"); 467 croak ("out of memory during aio_req allocation");
438 468
439 req->type = REQ_CLOSE; 469 req->type = ix;
440 req->fd = PerlIO_fileno (fh); 470 req->fd = PerlIO_fileno (fh);
441 req->callback = SvREFCNT_inc (callback); 471 req->callback = SvREFCNT_inc (callback);
442 472
443 send_req (req); 473 send_req (req);
474}
444 475
445void 476void
446aio_read(fh,offset,length,data,dataoffset,callback) 477aio_read(fh,offset,length,data,dataoffset,callback)
447 InputStream fh 478 InputStream fh
448 UV offset 479 UV offset
… …
465 PROTOTYPE: $$$$$$ 496 PROTOTYPE: $$$$$$
466 CODE: 497 CODE:
467 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); 498 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
468 499
469void 500void
501aio_readahead(fh,offset,length,callback)
502 InputStream fh
503 UV offset
504 IV length
505 SV * callback
506 PROTOTYPE: $$$$
507 CODE:
508{
509 aio_req req;
510
511 if (length < 0)
512 croak ("length must not be negative");
513
514 Newz (0, req, 1, aio_cb);
515
516 if (!req)
517 croak ("out of memory during aio_req allocation");
518
519 req->type = REQ_READAHEAD;
520 req->fd = PerlIO_fileno (fh);
521 req->offset = offset;
522 req->length = length;
523 req->callback = SvREFCNT_inc (callback);
524
525 send_req (req);
526}
527
528void
470aio_stat(fh_or_path,callback) 529aio_stat(fh_or_path,callback)
471 SV * fh_or_path 530 SV * fh_or_path
472 SV * callback 531 SV * callback
473 PROTOTYPE: $$ 532 PROTOTYPE: $$
474 ALIAS: 533 ALIAS:
475 aio_lstat = 1 534 aio_lstat = 1
476 CODE: 535 CODE:
536{
477 aio_req req; 537 aio_req req;
478 538
479 Newz (0, req, 1, aio_cb); 539 Newz (0, req, 1, aio_cb);
480 540
481 if (!req) 541 if (!req)
… …
499 } 559 }
500 560
501 req->callback = SvREFCNT_inc (callback); 561 req->callback = SvREFCNT_inc (callback);
502 562
503 send_req (req); 563 send_req (req);
564}
504 565
505void 566void
506aio_unlink(pathname,callback) 567aio_unlink(pathname,callback)
507 SV * pathname 568 SV * pathname
508 SV * callback 569 SV * callback
509 PROTOTYPE: $$ 570 PROTOTYPE: $$
510 CODE: 571 CODE:
572{
511 aio_req req; 573 aio_req req;
512 574
513 Newz (0, req, 1, aio_cb); 575 Newz (0, req, 1, aio_cb);
514 576
515 if (!req) 577 if (!req)
… …
519 req->data = newSVsv (pathname); 581 req->data = newSVsv (pathname);
520 req->dataptr = SvPV_nolen (req->data); 582 req->dataptr = SvPV_nolen (req->data);
521 req->callback = SvREFCNT_inc (callback); 583 req->callback = SvREFCNT_inc (callback);
522 584
523 send_req (req); 585 send_req (req);
586}
524 587
525int 588int
526poll_fileno() 589poll_fileno()
527 PROTOTYPE: 590 PROTOTYPE:
528 CODE: 591 CODE:

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