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Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.22 by root, Wed Jun 29 15:22:36 2005 UTC vs.
Revision 1.30 by root, Sat Jul 9 23:38:07 2005 UTC

… …
8#include <sys/stat.h> 8#include <sys/stat.h>
9#include <unistd.h> 9#include <unistd.h>
10#include <fcntl.h> 10#include <fcntl.h>
11#include <signal.h> 11#include <signal.h>
12#include <sched.h> 12#include <sched.h>
13#include <endian.h>
13 14
14typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 15typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
15typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 16typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
16typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 17typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
17 18
19#if __i386 || __amd64
20# define STACKSIZE ( 256 * sizeof (long))
21#elif __ia64
18#define STACKSIZE (128 * sizeof (long)) /* yeah */ 22# define STACKSIZE (8192 * sizeof (long))
23#else
24# define STACKSIZE ( 512 * sizeof (long))
25#endif
19 26
20enum { 27enum {
21 REQ_QUIT, 28 REQ_QUIT,
22 REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, 29 REQ_OPEN, REQ_CLOSE,
30 REQ_READ, REQ_WRITE, REQ_READAHEAD,
23 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK 31 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
32 REQ_FSYNC, REQ_FDATASYNC,
24}; 33};
25 34
26typedef struct { 35typedef struct {
27 char stack[STACKSIZE]; 36 char stack[STACKSIZE];
28} aio_thread; 37} aio_thread;
… …
62 aio_thread *thr; 71 aio_thread *thr;
63 72
64 New (0, thr, 1, aio_thread); 73 New (0, thr, 1, aio_thread);
65 74
66 if (clone (aio_proc, 75 if (clone (aio_proc,
67 &(thr->stack[STACKSIZE - sizeof (long)]), 76 &(thr->stack[STACKSIZE - 16]),
68 CLONE_VM|CLONE_FS|CLONE_FILES, 77 CLONE_VM|CLONE_FS|CLONE_FILES,
69 thr) >= 0) 78 thr) >= 0)
70 started++; 79 started++;
71 else 80 else
72 Safefree (thr); 81 Safefree (thr);
… …
230 239
231static sigset_t fullsigset; 240static sigset_t fullsigset;
232 241
233#undef errno 242#undef errno
234#include <asm/unistd.h> 243#include <asm/unistd.h>
244#include <linux/types.h>
235#include <sys/prctl.h> 245#include <sys/prctl.h>
246
247#if __alpha || __ia64 || __hppa || __v850__
248# define stat kernelstat
249# define stat64 kernelstat64
250# include <asm/stat.h>
251# undef stat
252# undef stat64
253#else
254# define kernelstat stat
255# define kernelstat64 stat64
256#endif
236 257
237#define COPY_STATDATA \ 258#define COPY_STATDATA \
238 req->statdata->st_dev = statdata.st_dev; \ 259 req->statdata->st_dev = statdata.st_dev; \
239 req->statdata->st_ino = statdata.st_ino; \ 260 req->statdata->st_ino = statdata.st_ino; \
240 req->statdata->st_mode = statdata.st_mode; \ 261 req->statdata->st_mode = statdata.st_mode; \
… …
256 aio_req req; 277 aio_req req;
257 int errno; 278 int errno;
258 279
259 /* this is very much kernel-specific :(:(:( */ 280 /* this is very much kernel-specific :(:(:( */
260 /* we rely on gcc's ability to create closures. */ 281 /* we rely on gcc's ability to create closures. */
261 _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)
262 _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)
263 284
264 _syscall3(int,open,char *,pathname,int,flags,mode_t,mode) 285 _syscall3(long, open, char *, pathname, int, flags, int, mode)
265 _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);
266 289
290#ifndef __NR_fdatasync
291# define __NR_fdatasync __NR_fsync
292#endif
293 _syscall1(long, fdatasync, unsigned int, fd);
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
267#ifdef __NR_pread64 301#ifndef __NR_pread64
268 _syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) 302# define __NR_pread64 __NR_pread
269 _syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) 303# define __NR_pwrite64 __NR_write
270#elif __NR_pread
271 _syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
272 _syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
273#else
274# error "neither pread nor pread64 defined"
275#endif 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);
276 310
277
278#ifdef __NR_stat64 311#if __NR_stat64
279 _syscall2(int,stat64, const char *, filename, struct stat64 *, buf) 312 _syscall2(long, stat64 , const char *, filename, struct kernelstat64 *, buf)
280 _syscall2(int,lstat64, const char *, filename, struct stat64 *, buf) 313 _syscall2(long, lstat64, const char *, filename, struct kernelstat64 *, buf)
281 _syscall2(int,fstat64, int, fd, struct stat64 *, buf) 314 _syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
282#elif __NR_stat 315#elif __NR_stat
283 _syscall2(int,stat, const char *, filename, struct stat *, buf) 316 _syscall2(long, stat , const char *, filename, struct kernelstat *, buf)
284 _syscall2(int,lstat, const char *, filename, struct stat *, buf) 317 _syscall2(long, lstat, const char *, filename, struct kernelstat *, buf)
285 _syscall2(int,fstat, int, fd, struct stat *, buf) 318 _syscall2(long, fstat, int , fd , struct kernelstat *, buf)
286#else 319#else
287# error "neither stat64 nor stat defined" 320# error "neither stat64 nor stat defined"
288#endif 321#endif
289 322
290 _syscall1(int,unlink, char *, filename); 323 /* the following two calls might clobber errno */
291
292 sigprocmask (SIG_SETMASK, &fullsigset, 0); 324 sigprocmask (SIG_SETMASK, &fullsigset, 0);
293 prctl (PR_SET_PDEATHSIG, SIGKILL); 325 prctl (PR_SET_PDEATHSIG, SIGKILL);
294 326
295 /* then loop */ 327 /* then loop */
296 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) 328 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
… …
298 req->thread = thr; 330 req->thread = thr;
299 errno = 0; /* strictly unnecessary */ 331 errno = 0; /* strictly unnecessary */
300 332
301 switch (req->type) 333 switch (req->type)
302 { 334 {
303#ifdef __NR_pread64
304 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break; 335 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
305 case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break; 336 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
337 case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
338
339#if __NR_stat64
340 struct kernelstat64 statdata;
341 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
342 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
343 case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
306#else 344#else
307 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
308 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
309#endif
310#ifdef __NR_stat64
311 struct stat64 statdata;
312 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
313 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
314 case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
315#else
316 struct stat statdata; 345 struct kernelstat statdata;
317 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;
318 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;
319 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;
320#endif 349#endif
350
321 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;
322 case REQ_CLOSE: req->result = close (req->fd); break; 352 case REQ_CLOSE: req->result = close (req->fd); break;
323 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;
324 357
325 case REQ_QUIT: 358 case REQ_QUIT:
326 default:
327 write (respipe[1], (void *)&req, sizeof (req)); 359 write (respipe[1], (void *)&req, sizeof (req));
328 return 0; 360 return 0;
361
362 default:
363 req->result = ENOSYS;
364 break;
329 } 365 }
330 366
331 req->errorno = errno; 367 req->errorno = errno;
332 write (respipe[1], (void *)&req, sizeof (req)); 368 write (respipe[1], (void *)&req, sizeof (req));
333 } 369 }
… …
408void 444void
409aio_close(fh,callback) 445aio_close(fh,callback)
410 InputStream fh 446 InputStream fh
411 SV * callback 447 SV * callback
412 PROTOTYPE: $$ 448 PROTOTYPE: $$
449 ALIAS:
450 aio_close = REQ_CLOSE
451 aio_fsync = REQ_FSYNC
452 aio_fdatasync = REQ_FDATASYNC
413 CODE: 453 CODE:
414 aio_req req; 454 aio_req req;
415 455
416 Newz (0, req, 1, aio_cb); 456 Newz (0, req, 1, aio_cb);
417 457
418 if (!req) 458 if (!req)
419 croak ("out of memory during aio_req allocation"); 459 croak ("out of memory during aio_req allocation");
420 460
421 req->type = REQ_CLOSE; 461 req->type = ix;
422 req->fd = PerlIO_fileno (fh); 462 req->fd = PerlIO_fileno (fh);
423 req->callback = SvREFCNT_inc (callback); 463 req->callback = SvREFCNT_inc (callback);
424 464
425 send_req (req); 465 send_req (req);
426 466
… …
518 CODE: 558 CODE:
519 RETVAL = poll_cb (aTHX); 559 RETVAL = poll_cb (aTHX);
520 OUTPUT: 560 OUTPUT:
521 RETVAL 561 RETVAL
522 562
563void
564poll_wait()
565 PROTOTYPE:
566 CODE:
567 poll_wait ();
568
523int 569int
524nreqs() 570nreqs()
525 PROTOTYPE: 571 PROTOTYPE:
526 CODE: 572 CODE:
527 RETVAL = nreqs; 573 RETVAL = nreqs;

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