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Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.25 by root, Thu Jul 7 22:24:09 2005 UTC vs.
Revision 1.29 by root, Sat Jul 9 22:45:06 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
18// 128 seems to be enough most everywhere. alpha needs 256. 19#if __i386 || __amd64
19#define STACKSIZE (256 * sizeof (long)) 20# define STACKSIZE ( 256 * sizeof (long))
21#elif __ia64
22# define STACKSIZE (8192 * sizeof (long))
23#else
24# define STACKSIZE ( 512 * sizeof (long))
25#endif
20 26
21enum { 27enum {
22 REQ_QUIT, 28 REQ_QUIT,
23 REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, 29 REQ_OPEN, REQ_CLOSE,
30 REQ_READ, REQ_WRITE, REQ_READAHEAD,
24 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK 31 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
32 REQ_FSYNC, REQ_FDATASYNC,
25}; 33};
26 34
27typedef struct { 35typedef struct {
28 char stack[STACKSIZE]; 36 char stack[STACKSIZE];
29} aio_thread; 37} aio_thread;
… …
63 aio_thread *thr; 71 aio_thread *thr;
64 72
65 New (0, thr, 1, aio_thread); 73 New (0, thr, 1, aio_thread);
66 74
67 if (clone (aio_proc, 75 if (clone (aio_proc,
68 &(thr->stack[STACKSIZE - sizeof (long)]), 76 &(thr->stack[STACKSIZE - 16]),
69 CLONE_VM|CLONE_FS|CLONE_FILES, 77 CLONE_VM|CLONE_FS|CLONE_FILES,
70 thr) >= 0) 78 thr) >= 0)
71 started++; 79 started++;
72 else 80 else
73 Safefree (thr); 81 Safefree (thr);
… …
231 239
232static sigset_t fullsigset; 240static sigset_t fullsigset;
233 241
234#undef errno 242#undef errno
235#include <asm/unistd.h> 243#include <asm/unistd.h>
244#include <linux/types.h>
236#include <sys/prctl.h> 245#include <sys/prctl.h>
237 246
238#if __alpha || __ia64 || __hppa || __sparc64__ || __v850__ 247#if __alpha || __ia64 || __hppa || __v850__
239# define stat kernelstat 248# define stat kernelstat
240# define stat64 kernelstat64 249# define stat64 kernelstat64
241# include <asm/stat.h> 250# include <asm/stat.h>
242# undef stat 251# undef stat
243# undef stat64 252# undef stat64
… …
268 aio_req req; 277 aio_req req;
269 int errno; 278 int errno;
270 279
271 /* this is very much kernel-specific :(:(:( */ 280 /* this is very much kernel-specific :(:(:( */
272 /* we rely on gcc's ability to create closures. */ 281 /* we rely on gcc's ability to create closures. */
273 _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)
274 _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)
275 284
276 _syscall3(int,open,char *,pathname,int,flags,mode_t,mode) 285 _syscall3(long, open, char *, pathname, int, flags, int, mode)
277 _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);
289 _syscall1(long, fdatasync, unsigned int, fd);
278 290
279#if __NR_pread64 291#if BYTE_ORDER == LITTLE_ENDIAN
280 _syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) 292# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
281 _syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) 293#elif BYTE_ORDER == BIG_ENDIAN
282#elif __NR_pread 294# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
283 _syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
284 _syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
285#else
286# error "neither pread nor pread64 defined"
287#endif 295#endif
288 296
297#ifndef __NR_pread64
298# define __NR_pread64 __NR_pread
299# define __NR_pwrite64 __NR_write
300#endif
301 _syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf,
302 __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
303 _syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf,
304 __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
305 _syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count);
289 306
290#if __NR_stat64 307#if __NR_stat64
291 _syscall2(int,stat64, const char *, filename, struct kernelstat64 *, buf) 308 _syscall2(long, stat64 , const char *, filename, struct kernelstat64 *, buf)
292 _syscall2(int,lstat64, const char *, filename, struct kernelstat64 *, buf) 309 _syscall2(long, lstat64, const char *, filename, struct kernelstat64 *, buf)
293 _syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf) 310 _syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
294#elif __NR_stat 311#elif __NR_stat
295 _syscall2(int,stat, const char *, filename, struct kernelstat *, buf) 312 _syscall2(long, stat , const char *, filename, struct kernelstat *, buf)
296 _syscall2(int,lstat, const char *, filename, struct kernelstat *, buf) 313 _syscall2(long, lstat, const char *, filename, struct kernelstat *, buf)
297 _syscall2(int,fstat, int, fd, struct kernelstat *, buf) 314 _syscall2(long, fstat, int , fd , struct kernelstat *, buf)
298#else 315#else
299# error "neither stat64 nor stat defined" 316# error "neither stat64 nor stat defined"
300#endif 317#endif
301 318
302 _syscall1(int,unlink, char *, filename); 319 /* the following two calls might clobber errno */
303
304 sigprocmask (SIG_SETMASK, &fullsigset, 0); 320 sigprocmask (SIG_SETMASK, &fullsigset, 0);
305 prctl (PR_SET_PDEATHSIG, SIGKILL); 321 prctl (PR_SET_PDEATHSIG, SIGKILL);
306 322
307 /* then loop */ 323 /* then loop */
308 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) 324 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
… …
310 req->thread = thr; 326 req->thread = thr;
311 errno = 0; /* strictly unnecessary */ 327 errno = 0; /* strictly unnecessary */
312 328
313 switch (req->type) 329 switch (req->type)
314 { 330 {
315#if __NR_pread64
316 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
317 case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
318#else
319 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 331 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
320 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 332 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
321#endif 333 case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
334
322#if __NR_stat64 335#if __NR_stat64
323 struct kernelstat64 statdata; 336 struct kernelstat64 statdata;
324 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break; 337 case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
325 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break; 338 case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
326 case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break; 339 case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
327#else 340#else
328 struct kernelstat statdata; 341 struct kernelstat statdata;
329 case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break; 342 case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
330 case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break; 343 case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
331 case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break; 344 case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break;
332#endif 345#endif
346
333 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 347 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
334 case REQ_CLOSE: req->result = close (req->fd); break; 348 case REQ_CLOSE: req->result = close (req->fd); break;
335 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 349 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
350
351 case REQ_FSYNC: req->result = fsync (req->fd); break;
352 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
336 353
337 case REQ_QUIT: 354 case REQ_QUIT:
338 default:
339 write (respipe[1], (void *)&req, sizeof (req)); 355 write (respipe[1], (void *)&req, sizeof (req));
340 return 0; 356 return 0;
357
358 default:
359 req->result = ENOSYS;
360 break;
341 } 361 }
342 362
343 req->errorno = errno; 363 req->errorno = errno;
344 write (respipe[1], (void *)&req, sizeof (req)); 364 write (respipe[1], (void *)&req, sizeof (req));
345 } 365 }
… …
420void 440void
421aio_close(fh,callback) 441aio_close(fh,callback)
422 InputStream fh 442 InputStream fh
423 SV * callback 443 SV * callback
424 PROTOTYPE: $$ 444 PROTOTYPE: $$
445 ALIAS:
446 aio_close = REQ_CLOSE
447 aio_fsync = REQ_FSYNC
448 aio_fdatasync = REQ_FDATASYNC
425 CODE: 449 CODE:
426 aio_req req; 450 aio_req req;
427 451
428 Newz (0, req, 1, aio_cb); 452 Newz (0, req, 1, aio_cb);
429 453
430 if (!req) 454 if (!req)
431 croak ("out of memory during aio_req allocation"); 455 croak ("out of memory during aio_req allocation");
432 456
433 req->type = REQ_CLOSE; 457 req->type = ix;
434 req->fd = PerlIO_fileno (fh); 458 req->fd = PerlIO_fileno (fh);
435 req->callback = SvREFCNT_inc (callback); 459 req->callback = SvREFCNT_inc (callback);
436 460
437 send_req (req); 461 send_req (req);
438 462

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