ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Linux-AIO/AIO.xs
(Generate patch)

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.20 by root, Sun Jul 18 10:55:34 2004 UTC vs.
Revision 1.23 by root, Wed Jun 29 15:28:14 2005 UTC

… …
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 13
14typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 14typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */
15typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 15typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */
16typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 16typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
17 17
18#ifndef __NR_pread64 18#define STACKSIZE (128 * sizeof (long)) /* yeah */
19# define __NR_pread64 __NR_pread
20#endif
21#ifndef __NR_pwrite64
22# define __NR_pwrite64 __NR_pwrite
23#endif
24
25#define STACKSIZE 1024 /* yeah */
26 19
27enum { 20enum {
28 REQ_QUIT, 21 REQ_QUIT,
29 REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, 22 REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,
30 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK 23 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK
… …
48 int errorno; 41 int errorno;
49 SV *data, *callback; 42 SV *data, *callback;
50 void *dataptr; 43 void *dataptr;
51 STRLEN dataoffset; 44 STRLEN dataoffset;
52 45
53 struct stat64 *statdata; 46 Stat_t *statdata;
54} aio_cb; 47} aio_cb;
55 48
56typedef aio_cb *aio_req; 49typedef aio_cb *aio_req;
57 50
58static int started; 51static int started;
… …
69 aio_thread *thr; 62 aio_thread *thr;
70 63
71 New (0, thr, 1, aio_thread); 64 New (0, thr, 1, aio_thread);
72 65
73 if (clone (aio_proc, 66 if (clone (aio_proc,
74 &(thr->stack[STACKSIZE]), 67 &(thr->stack[STACKSIZE - sizeof (long)]),
75 CLONE_VM|CLONE_FS|CLONE_FILES, 68 CLONE_VM|CLONE_FS|CLONE_FILES,
76 thr) >= 0) 69 thr) >= 0)
77 started++; 70 started++;
78 else 71 else
79 Safefree (thr); 72 Safefree (thr);
… …
95{ 88{
96 nreqs++; 89 nreqs++;
97 req->next = 0; 90 req->next = 0;
98 91
99 if (qe) 92 if (qe)
93 {
100 qe->next = req; 94 qe->next = req;
95 qe = req;
96 }
101 else 97 else
102 qe = qs = req; 98 qe = qs = req;
103 99
104 send_reqs (); 100 send_reqs ();
105} 101}
… …
161 req->callback = SvREFCNT_inc (callback); 157 req->callback = SvREFCNT_inc (callback);
162 158
163 send_req (req); 159 send_req (req);
164} 160}
165 161
162static void
163poll_wait ()
164{
165 fd_set rfd;
166 FD_ZERO(&rfd);
167 FD_SET(respipe[0], &rfd);
168
169 select (respipe[0] + 1, &rfd, 0, 0, 0);
170}
171
166static int 172static int
167poll_cb (pTHX) 173poll_cb (pTHX)
168{ 174{
169 dSP; 175 dSP;
170 int count = 0; 176 int count = 0;
171 aio_req req; 177 aio_req req;
172 178
173 while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) 179 while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
174 { 180 {
181 nreqs--;
182
175 if (req->type == REQ_QUIT) 183 if (req->type == REQ_QUIT)
176 { 184 {
177 Safefree (req->thread); 185 Safefree (req->thread);
178 started--; 186 started--;
179 } 187 }
… …
189 if (req->data) 197 if (req->data)
190 SvREFCNT_dec (req->data); 198 SvREFCNT_dec (req->data);
191 199
192 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) 200 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
193 { 201 {
194 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 202 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
195 PL_laststatval = req->result; 203 PL_laststatval = req->result;
196 PL_statcache.st_dev = req->statdata->st_dev; 204 PL_statcache = *(req->statdata);
197 PL_statcache.st_ino = req->statdata->st_ino;
198 PL_statcache.st_mode = req->statdata->st_mode;
199 PL_statcache.st_nlink = req->statdata->st_nlink;
200 PL_statcache.st_uid = req->statdata->st_uid;
201 PL_statcache.st_gid = req->statdata->st_gid;
202 PL_statcache.st_rdev = req->statdata->st_rdev;
203 PL_statcache.st_size = req->statdata->st_size;
204 PL_statcache.st_atime = req->statdata->st_atime;
205 PL_statcache.st_mtime = req->statdata->st_mtime;
206 PL_statcache.st_ctime = req->statdata->st_ctime;
207 PL_statcache.st_blksize = req->statdata->st_blksize;
208 PL_statcache.st_blocks = req->statdata->st_blocks;
209 205
210 Safefree (req->statdata); 206 Safefree (req->statdata);
211 } 207 }
212 208
213 PUSHMARK (SP); 209 PUSHMARK (SP);
… …
218 214
219 if (req->callback) 215 if (req->callback)
220 SvREFCNT_dec (req->callback); 216 SvREFCNT_dec (req->callback);
221 217
222 errno = errorno; 218 errno = errorno;
223 nreqs--;
224 count++; 219 count++;
225 } 220 }
226 221
227 Safefree (req); 222 Safefree (req);
228 } 223 }
… …
237 232
238#undef errno 233#undef errno
239#include <asm/unistd.h> 234#include <asm/unistd.h>
240#include <sys/prctl.h> 235#include <sys/prctl.h>
241 236
237#define COPY_STATDATA \
238 req->statdata->st_dev = statdata.st_dev; \
239 req->statdata->st_ino = statdata.st_ino; \
240 req->statdata->st_mode = statdata.st_mode; \
241 req->statdata->st_nlink = statdata.st_nlink; \
242 req->statdata->st_uid = statdata.st_uid; \
243 req->statdata->st_gid = statdata.st_gid; \
244 req->statdata->st_rdev = statdata.st_rdev; \
245 req->statdata->st_size = statdata.st_size; \
246 req->statdata->st_atime = statdata.st_atime; \
247 req->statdata->st_mtime = statdata.st_mtime; \
248 req->statdata->st_ctime = statdata.st_ctime; \
249 req->statdata->st_blksize = statdata.st_blksize; \
250 req->statdata->st_blocks = statdata.st_blocks; \
251
242static int 252static int
243aio_proc (void *thr_arg) 253aio_proc (void *thr_arg)
244{ 254{
245 aio_thread *thr = thr_arg; 255 aio_thread *thr = thr_arg;
246 aio_req req; 256 aio_req req;
247 int errno; 257 int errno;
248 258
249 /* this is very much x86 and kernel-specific :(:(:( */ 259 /* this is very much kernel-specific :(:(:( */
250 /* we rely on gcc's ability to create closures. */ 260 /* we rely on gcc's ability to create closures. */
251 _syscall3(int,read,int,fd,char *,buf,size_t,count) 261 _syscall3(int,read,int,fd,char *,buf,size_t,count)
252 _syscall3(int,write,int,fd,char *,buf,size_t,count) 262 _syscall3(int,write,int,fd,char *,buf,size_t,count)
253 263
254 _syscall3(int,open,char *,pathname,int,flags,mode_t,mode) 264 _syscall3(int,open,char *,pathname,int,flags,mode_t,mode)
255 _syscall1(int,close,int,fd) 265 _syscall1(int,close,int,fd)
256 266
267#ifdef __NR_pread64
257 _syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) 268 _syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
258 _syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) 269 _syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
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
259 276
277
278#ifdef __NR_stat64
260 _syscall2(int,stat64, const char *, filename, struct stat64 *, buf) 279 _syscall2(int,stat64, const char *, filename, struct stat64 *, buf)
261 _syscall2(int,lstat64, const char *, filename, struct stat64 *, buf) 280 _syscall2(int,lstat64, const char *, filename, struct stat64 *, buf)
262 _syscall2(int,fstat64, int, fd, struct stat64 *, buf) 281 _syscall2(int,fstat64, int, fd, struct stat64 *, buf)
282#elif __NR_stat
283 _syscall2(int,stat, const char *, filename, struct stat *, buf)
284 _syscall2(int,lstat, const char *, filename, struct stat *, buf)
285 _syscall2(int,fstat, int, fd, struct stat *, buf)
286#else
287# error "neither stat64 nor stat defined"
288#endif
263 289
264 _syscall1(int,unlink, char *, filename); 290 _syscall1(int,unlink, char *, filename);
265 291
266 sigprocmask (SIG_SETMASK, &fullsigset, 0); 292 sigprocmask (SIG_SETMASK, &fullsigset, 0);
267 prctl (PR_SET_PDEATHSIG, SIGKILL); 293 prctl (PR_SET_PDEATHSIG, SIGKILL);
… …
272 req->thread = thr; 298 req->thread = thr;
273 errno = 0; /* strictly unnecessary */ 299 errno = 0; /* strictly unnecessary */
274 300
275 switch (req->type) 301 switch (req->type)
276 { 302 {
303#ifdef __NR_pread64
277 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break; 304 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
278 case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break; 305 case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;
306#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;
317 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;
319 case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
320#endif
279 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 321 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
280 case REQ_CLOSE: req->result = close (req->fd); break; 322 case REQ_CLOSE: req->result = close (req->fd); break;
281 case REQ_STAT: req->result = stat64 (req->dataptr, req->statdata); break;
282 case REQ_LSTAT: req->result = lstat64 (req->dataptr, req->statdata); break;
283 case REQ_FSTAT: req->result = fstat64 (req->fd, req->statdata); break;
284 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 323 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
285 324
286 case REQ_QUIT: 325 case REQ_QUIT:
287 default: 326 default:
288 write (respipe[1], (void *)&req, sizeof (req)); 327 write (respipe[1], (void *)&req, sizeof (req));
… …
336 cur--; 375 cur--;
337 } 376 }
338 377
339 while (started > nthreads) 378 while (started > nthreads)
340 { 379 {
341 fd_set rfd; 380 poll_wait ();
342 FD_ZERO(&rfd);
343 FD_SET(respipe[0], &rfd);
344
345 select (respipe[0] + 1, &rfd, 0, 0, 0);
346 poll_cb (aTHX); 381 poll_cb (aTHX);
347 } 382 }
348 383
349void 384void
350aio_open(pathname,flags,mode,callback) 385aio_open(pathname,flags,mode,callback)
… …
426 Newz (0, req, 1, aio_cb); 461 Newz (0, req, 1, aio_cb);
427 462
428 if (!req) 463 if (!req)
429 croak ("out of memory during aio_req allocation"); 464 croak ("out of memory during aio_req allocation");
430 465
431 New (0, req->statdata, 1, struct stat64); 466 New (0, req->statdata, 1, Stat_t);
432 467
433 if (!req->statdata) 468 if (!req->statdata)
434 croak ("out of memory during aio_req->statdata allocation"); 469 croak ("out of memory during aio_req->statdata allocation");
435 470
436 if (SvPOK (fh_or_path)) 471 if (SvPOK (fh_or_path))
… …
483 CODE: 518 CODE:
484 RETVAL = poll_cb (aTHX); 519 RETVAL = poll_cb (aTHX);
485 OUTPUT: 520 OUTPUT:
486 RETVAL 521 RETVAL
487 522
523void
524poll_wait()
525 PROTOTYPE:
526 CODE:
527 poll_wait ();
528
488int 529int
489nreqs() 530nreqs()
490 PROTOTYPE: 531 PROTOTYPE:
491 CODE: 532 CODE:
492 RETVAL = nreqs; 533 RETVAL = nreqs;

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines