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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 1.29 by root, Sat Jul 9 22:45:06 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;
… …
239 241
240#undef errno 242#undef errno
241#include <asm/unistd.h> 243#include <asm/unistd.h>
242#include <linux/types.h> 244#include <linux/types.h>
243#include <sys/prctl.h> 245#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
250 246
251#if __alpha || __ia64 || __hppa || __v850__ 247#if __alpha || __ia64 || __hppa || __v850__
252# define stat kernelstat 248# define stat kernelstat
253# define stat64 kernelstat64 249# define stat64 kernelstat64
254# include <asm/stat.h> 250# include <asm/stat.h>
… …
281 aio_req req; 277 aio_req req;
282 int errno; 278 int errno;
283 279
284 /* this is very much kernel-specific :(:(:( */ 280 /* this is very much kernel-specific :(:(:( */
285 /* we rely on gcc's ability to create closures. */ 281 /* we rely on gcc's ability to create closures. */
286 _syscall3(__kernel_size_t,read,unsigned int,fd,char *,buf,__kernel_size_t,count) 282 _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) 283 _syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count)
288 284
289 _syscall3(int,open,char *,pathname,int,flags,int,mode) 285 _syscall3(long, open, char *, pathname, int, flags, int, mode)
290 _syscall1(int,close,unsigned 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);
290
291#if BYTE_ORDER == LITTLE_ENDIAN
292# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
293#elif BYTE_ORDER == BIG_ENDIAN
294# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
295#endif
291 296
292#ifndef __NR_pread64 297#ifndef __NR_pread64
293# define __NR_pread64 __NR_pread 298# define __NR_pread64 __NR_pread
294# define __NR_pwrite64 __NR_write 299# define __NR_pwrite64 __NR_write
295#endif 300#endif
296 _syscall5(__kernel_ssize_t,pread64,unsigned int,fd,char *,buf,__kernel_size_t,count,unsigned int,offset_lh,unsigned int,offset_hl) 301 _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) 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);
298 306
299#if __NR_stat64 307#if __NR_stat64
300 _syscall2(int,stat64, const char *, filename, struct kernelstat64 *, buf) 308 _syscall2(long, stat64 , const char *, filename, struct kernelstat64 *, buf)
301 _syscall2(int,lstat64, const char *, filename, struct kernelstat64 *, buf) 309 _syscall2(long, lstat64, const char *, filename, struct kernelstat64 *, buf)
302 _syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf) 310 _syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
303#elif __NR_stat 311#elif __NR_stat
304 _syscall2(int,stat, const char *, filename, struct kernelstat *, buf) 312 _syscall2(long, stat , const char *, filename, struct kernelstat *, buf)
305 _syscall2(int,lstat, const char *, filename, struct kernelstat *, buf) 313 _syscall2(long, lstat, const char *, filename, struct kernelstat *, buf)
306 _syscall2(int,fstat, int, fd, struct kernelstat *, buf) 314 _syscall2(long, fstat, int , fd , struct kernelstat *, buf)
307#else 315#else
308# error "neither stat64 nor stat defined" 316# error "neither stat64 nor stat defined"
309#endif 317#endif
310 318
311 _syscall1(int,unlink, char *, filename); 319 /* the following two calls might clobber errno */
312
313 sigprocmask (SIG_SETMASK, &fullsigset, 0); 320 sigprocmask (SIG_SETMASK, &fullsigset, 0);
314 prctl (PR_SET_PDEATHSIG, SIGKILL); 321 prctl (PR_SET_PDEATHSIG, SIGKILL);
315 322
316 /* then loop */ 323 /* then loop */
317 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) 324 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
… …
319 req->thread = thr; 326 req->thread = thr;
320 errno = 0; /* strictly unnecessary */ 327 errno = 0; /* strictly unnecessary */
321 328
322 switch (req->type) 329 switch (req->type)
323 { 330 {
324 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, 331 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, 332 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; 333 case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
334
328#if __NR_stat64 335#if __NR_stat64
329 struct kernelstat64 statdata; 336 struct kernelstat64 statdata;
330 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;
331 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;
332 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;
333#else 340#else
334 struct kernelstat statdata; 341 struct kernelstat statdata;
335 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;
336 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;
337 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;
338#endif 345#endif
346
339 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;
340 case REQ_CLOSE: req->result = close (req->fd); break; 348 case REQ_CLOSE: req->result = close (req->fd); break;
341 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;
342 353
343 case REQ_QUIT: 354 case REQ_QUIT:
344 default:
345 write (respipe[1], (void *)&req, sizeof (req)); 355 write (respipe[1], (void *)&req, sizeof (req));
346 return 0; 356 return 0;
357
358 default:
359 req->result = ENOSYS;
360 break;
347 } 361 }
348 362
349 req->errorno = errno; 363 req->errorno = errno;
350 write (respipe[1], (void *)&req, sizeof (req)); 364 write (respipe[1], (void *)&req, sizeof (req));
351 } 365 }
… …
426void 440void
427aio_close(fh,callback) 441aio_close(fh,callback)
428 InputStream fh 442 InputStream fh
429 SV * callback 443 SV * callback
430 PROTOTYPE: $$ 444 PROTOTYPE: $$
445 ALIAS:
446 aio_close = REQ_CLOSE
447 aio_fsync = REQ_FSYNC
448 aio_fdatasync = REQ_FDATASYNC
431 CODE: 449 CODE:
432 aio_req req; 450 aio_req req;
433 451
434 Newz (0, req, 1, aio_cb); 452 Newz (0, req, 1, aio_cb);
435 453
436 if (!req) 454 if (!req)
437 croak ("out of memory during aio_req allocation"); 455 croak ("out of memory during aio_req allocation");
438 456
439 req->type = REQ_CLOSE; 457 req->type = ix;
440 req->fd = PerlIO_fileno (fh); 458 req->fd = PerlIO_fileno (fh);
441 req->callback = SvREFCNT_inc (callback); 459 req->callback = SvREFCNT_inc (callback);
442 460
443 send_req (req); 461 send_req (req);
444 462

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