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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.48 by root, Sun Oct 22 10:33:19 2006 UTC vs.
Revision 1.246 by root, Fri Jun 23 21:43:51 2017 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#include "schmorp.h"
9
10#include <pthread.h>
11 10
12#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
23 19
24#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h>
29# include <sys/uio.h> 21# include <sys/mman.h>
30# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
31# include <sys/socket.h> 86 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
34# else 145# else
35# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 147# endif
37#endif 148#endif
38 149
39/* used for struct dirent, AIX doesn't provide it */ 150/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 151/* also provides const_iv_ and const_niv_ macros for them */
41# define NAME_MAX 4096 152#include "def0.h"
42#endif
43 153
44#if __ia64 154#ifndef makedev
45# define STACKSIZE 65536 155# define makedev(maj,min) (((maj) << 8) | (min))
46#else
47# define STACKSIZE 8192
48#endif 156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
49 163
50enum { 164#if PAGESIZE <= 0
51 REQ_QUIT, 165# define PAGESIZE sysconf (_SC_PAGESIZE)
52 REQ_OPEN, REQ_CLOSE, 166#endif
53 REQ_READ, REQ_WRITE, REQ_READAHEAD,
54 REQ_SENDFILE,
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56 REQ_FSYNC, REQ_FDATASYNC,
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58 REQ_READDIR,
59 REQ_LINK, REQ_SYMLINK,
60 REQ_SLEEP,
61 REQ_GROUP,
62};
63 167
64#define AIO_REQ_KLASS "IO::AIO::REQ" 168/*****************************************************************************/
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66 169
67typedef struct aio_cb 170static void
171fiemap (eio_req *req)
68{ 172{
69 struct aio_cb *grp, *grp_prev, *grp_next; 173 req->result = -1;
70 174
71 struct aio_cb *volatile next; 175#if HAVE_FIEMAP
176 /* assume some c99 */
177 struct fiemap *fiemap = 0;
178 size_t end_offset;
179 int count = req->int3;
72 180
73 SV *self; /* the perl counterpart of this request, if any */ 181 req->flags |= EIO_FLAG_PTR1_FREE;
74 182
75 SV *data, *callback; 183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
76 SV *fh, *fh2; 184 /* increase in 3.5kb steps */
77 void *dataptr, *data2ptr; 185 if (count < 0)
78 Stat_t *statdata; 186 count = 8;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82 187
83 int type; 188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
84 int fd, fd2; 189 errno = ENOMEM;
85 int errorno; 190 if (!fiemap)
86 STRLEN dataoffset; 191 return;
87 mode_t mode; /* open */
88 unsigned char cancelled;
89} aio_cb;
90 192
91typedef aio_cb *aio_req; 193 req->ptr1 = fiemap;
92typedef aio_cb *aio_req_ornot;
93 194
94static int started, wanted; 195 fiemap->fm_start = req->offs;
95static volatile int nreqs; 196 fiemap->fm_length = req->size;
96static int max_outstanding = 1<<30; 197 fiemap->fm_flags = req->int2;
97static int respipe [2]; 198 fiemap->fm_extent_count = count;
98 199
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 201 return;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 202
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 203 if (req->int3 >= 0 /* not autosizing */
104static volatile aio_req ress, rese; /* queue start, queue end */ 204 || !fiemap->fm_mapped_extents /* no more extents */
205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
206 goto done;
105 207
106static void req_free (aio_req req); 208 /* else we have to loop -
209 * it would be tempting (actually I tried that first) to just query the
210 * number of extents needed, but linux often feels like not returning all
211 * extents, without telling us it left any out. this complicates
212 * this quite a bit.
213 */
107 214
108/* must be called at most once */ 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
109static SV *req_sv (aio_req req, const char *klass)
110{
111 req->self = (SV *)newHV ();
112 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
113 216
114 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 217 for (;;)
115}
116
117static aio_req SvAIO_REQ (SV *sv)
118{
119 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))
120 croak ("object of class " AIO_REQ_KLASS " expected");
121
122 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
123
124 return mg ? (aio_req)mg->mg_ptr : 0;
125}
126
127static void poll_wait ()
128{
129 if (nreqs && !ress)
130 { 218 {
131 fd_set rfd; 219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
132 FD_ZERO(&rfd); 220 char scratch[3072];
133 FD_SET(respipe [0], &rfd); 221 struct fiemap *incmap = (struct fiemap *)scratch;
134 222
135 select (respipe [0] + 1, &rfd, 0, 0, 0); 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
136 } 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
137} 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
226 incmap->fm_flags = fiemap->fm_flags;
227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
138 228
139static void req_invoke (aio_req req) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
140{
141 dSP;
142 int errorno = errno;
143
144 if (req->cancelled || !SvOK (req->callback))
145 return; 230 return;
146 231
147 errno = req->errorno; 232 if (!incmap->fm_mapped_extents)
233 goto done;
148 234
149 ENTER; 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
150 PUSHMARK (SP); 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
151 EXTEND (SP, 1); 237 errno = ENOMEM;
238 if (!fiemap)
239 return;
152 240
153 switch (req->type) 241 req->ptr1 = fiemap;
154 { 242
155 case REQ_READDIR: 243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
156 { 244 {
157 SV *rv = &PL_sv_undef; 245 struct fiemap_extent *e = incmap->fm_extents + count;
158 246
159 if (req->result >= 0) 247 if (e->fe_logical + e->fe_length >= end_offset)
160 { 248 goto done;
161 char *buf = req->data2ptr;
162 AV *av = newAV ();
163 249
164 while (req->result) 250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
165 {
166 SV *sv = newSVpv (buf, 0);
167 251
168 av_push (av, sv); 252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
169 buf += SvCUR (sv) + 1; 253 goto done;
170 req->result--;
171 }
172 254
173 rv = sv_2mortal (newRV_noinc ((SV *)av));
174 }
175
176 PUSHs (rv);
177 }
178 break;
179
180 case REQ_OPEN:
181 {
182 /* convert fd to fh */
183 SV *fh;
184
185 PUSHs (sv_2mortal (newSViv (req->result)));
186 PUTBACK;
187 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
188 SPAGAIN;
189
190 fh = SvREFCNT_inc (POPs);
191
192 PUSHMARK (SP);
193 XPUSHs (sv_2mortal (fh));
194 }
195 break;
196
197 case REQ_GROUP:
198 if (req->data)
199 {
200 int i;
201 AV *av = (AV *)req->data;
202
203 EXTEND (SP, AvFILL (av) + 1);
204 for (i = 0; i <= AvFILL (av); ++i)
205 PUSHs (*av_fetch (av, i, 0));
206 }
207 break;
208
209 case REQ_SLEEP:
210 break;
211
212 default:
213 PUSHs (sv_2mortal (newSViv (req->result)));
214 break;
215 }
216
217
218 PUTBACK;
219 call_sv (req->callback, G_VOID | G_EVAL);
220 SPAGAIN;
221
222 if (SvTRUE (ERRSV))
223 {
224 req_free (req);
225 croak (0);
226 }
227
228 LEAVE;
229
230 errno = errorno;
231}
232
233static void req_free (aio_req req)
234{
235 if (req->grp)
236 {
237 aio_req grp = req->grp;
238
239 /* unlink request */
240 req->grp_next->grp_prev = req->grp_prev;
241 req->grp_prev->grp_next = req->grp_next;
242
243 if (grp->grp_next == grp && grp->fd)
244 {
245 req_invoke (grp);
246 req_free (grp);
247 } 255 }
248 } 256 }
249 257
258done:
259 req->result = 0;
260
261#else
262 errno = ENOSYS;
263#endif
264}
265
266/*****************************************************************************/
267
268enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270};
271
272typedef eio_req *aio_req;
273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
275
276static SV *on_next_submit;
277static int next_pri = EIO_PRI_DEFAULT;
278static int max_outstanding;
279
280static s_epipe respipe;
281
282static void req_destroy (aio_req req);
283static void req_cancel (aio_req req);
284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
298
299/* must be called at most once */
300static SV *
301req_sv (aio_req req, HV *stash)
302{
303 if (!req->self)
304 {
305 req->self = (SV *)newHV ();
306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
307 }
308
309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
310}
311
312static SV *
313newSVaio_wd (aio_wd wd)
314{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
320{
321 MAGIC *mg;
322
323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
328 croak ("object of class IO::AIO::REQ expected");
329
330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
331
332 return mg ? (aio_req)mg->mg_ptr : 0;
333}
334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
372aio_grp_feed (aio_req grp)
373{
374 if (grp->sv2 && SvOK (grp->sv2))
375 {
376 dSP;
377
378 ENTER;
379 SAVETMPS;
380 PUSHMARK (SP);
381 XPUSHs (req_sv (grp, aio_grp_stash));
382 PUTBACK;
383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
384 SPAGAIN;
385 FREETMPS;
386 LEAVE;
387 }
388}
389
390static void
391req_submit (eio_req *req)
392{
393 eio_submit (req);
394
395 if (expect_false (on_next_submit))
396 {
397 dSP;
398 SV *cb = sv_2mortal (on_next_submit);
399
400 on_next_submit = 0;
401
402 PUSHMARK (SP);
403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
405 }
406}
407
408static int
409req_invoke (eio_req *req)
410{
411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
413
414 if (!EIO_CANCELLED (req) && req->callback)
415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
420 ENTER;
421 SAVETMPS;
422 PUSHMARK (SP);
423 EXTEND (SP, 1);
424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
427 {
428 sv_result = sv_result_cache; sv_result_cache = 0;
429 SvIV_set (sv_result, req->result);
430 SvIOK_only (sv_result);
431 }
432 else
433 {
434 sv_result = newSViv (req->result);
435 SvREADONLY_on (sv_result);
436 }
437
438 switch (req->type)
439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
444 case EIO_READDIR:
445 {
446 SV *rv = &PL_sv_undef;
447
448 if (req->result >= 0)
449 {
450 int i;
451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
453 AV *av = newAV ();
454
455 av_extend (av, req->result - 1);
456
457 for (i = 0; i < req->result; ++i)
458 {
459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
491 names += SvCUR (name) + 1;
492 }
493 }
494
495 rv = sv_2mortal (newRV_noinc ((SV *)av));
496 }
497
498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 }
503 break;
504
505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
546 case EIO_GROUP:
547 req->int1 = 2; /* mark group as finished */
548
549 if (req->sv1)
550 {
551 int i;
552 AV *av = (AV *)req->sv1;
553
554 EXTEND (SP, AvFILL (av) + 1);
555 for (i = 0; i <= AvFILL (av); ++i)
556 PUSHs (*av_fetch (av, i, 0));
557 }
558 break;
559
560 case EIO_NOP:
561 case EIO_BUSY:
562 break;
563
564 case EIO_READLINK:
565 case EIO_REALPATH:
566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
598 {
599#if HAVE_FIEMAP
600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
631 }
632 else
633 PUSHs (sv_result);
634 break;
635
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0)
638 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */
640
641 default:
642 PUSHs (sv_result);
643 break;
644 }
645
646 errno = req->errorno;
647
648 PUTBACK;
649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
656
657 FREETMPS;
658 LEAVE;
659
660 PUTBACK;
661 }
662
663 return !!SvTRUE (ERRSV);
664}
665
666static void
667req_destroy (aio_req req)
668{
250 if (req->self) 669 if (req->self)
251 { 670 {
252 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
253 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
254 } 673 }
255 674
256 if (req->data)
257 SvREFCNT_dec (req->data);
258
259 if (req->fh)
260 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
261
262 if (req->fh2)
263 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
264 677 SvREFCNT_dec (req->sv3);
265 if (req->statdata) 678 SvREFCNT_dec (req->sv4);
266 Safefree (req->statdata);
267
268 if (req->callback)
269 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
270 680
271 if (req->type == REQ_READDIR && req->result >= 0)
272 free (req->data2ptr);
273
274 Safefree (req); 681 free (req);
275} 682}
276 683
277static void req_cancel (aio_req req) 684static void
685req_cancel_subs (aio_req grp)
278{ 686{
279 req->cancelled = 1;
280
281 if (req->type == REQ_GROUP) 687 if (grp->type != EIO_GROUP)
688 return;
689
690 SvREFCNT_dec (grp->sv2);
691 grp->sv2 = 0;
692
693 eio_grp_cancel (grp);
694}
695
696static void ecb_cold
697create_respipe (void)
698{
699 if (s_epipe_renew (&respipe))
700 croak ("IO::AIO: unable to initialize result pipe");
701}
702
703static void
704poll_wait (void)
705{
706 while (eio_nreqs ())
282 { 707 {
283 aio_req sub; 708 int size;
284 709
285 for (sub = req->grp_next; sub != req; sub = sub->grp_next) 710 X_LOCK (EIO_POOL->reslock);
286 req_cancel (sub); 711 size = EIO_POOL->res_queue.size;
712 X_UNLOCK (EIO_POOL->reslock);
713
714 if (size)
715 return;
716
717 etp_maybe_start_thread (EIO_POOL);
718
719 s_epipe_wait (&respipe);
287 } 720 }
288} 721}
289 722
290static int poll_cb () 723static int
724poll_cb (void)
291{ 725{
292 dSP;
293 int count = 0;
294 int do_croak = 0;
295 aio_req req;
296
297 for (;;) 726 for (;;)
298 { 727 {
299 pthread_mutex_lock (&reslock); 728 int res = eio_poll ();
300 req = ress;
301 729
302 if (req) 730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
303 { 836 {
304 ress = req->next; 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
305 839
306 if (!ress) 840 if (SvOK (wdob))
307 { 841 {
308 /* read any signals sent by the worker threads */ 842 *wd = SvAIO_WD (wdob);
309 char buf [32]; 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
310 while (read (respipe [0], buf, 32) == 32)
311 ;
312
313 rese = 0;
314 } 844 }
845 else
846 *wd = EIO_INVALID_WD;
315 } 847 }
316 848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
317 pthread_mutex_unlock (&reslock);
318
319 if (!req)
320 break;
321
322 nreqs--;
323
324 if (req->type == REQ_QUIT)
325 started--;
326 else if (req->type == REQ_GROUP && req->grp_next != req)
327 { 849 {
328 req->fd = 1; /* mark request as delayed */ 850 *wd = (aio_wd)(long)SvIVX (rv);
329 continue; 851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
330 } 854 }
331 else 855 else
332 { 856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
333 if (req->type == REQ_READ)
334 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
335
336 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
337 SvREADONLY_off (req->data);
338
339 if (req->statdata)
340 {
341 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
342 PL_laststatval = req->result;
343 PL_statcache = *(req->statdata);
344 }
345
346 req_invoke (req);
347
348 count++;
349 }
350
351 req_free (req);
352 } 857 }
353 858
354 return count; 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
355} 861}
356 862
357static void *aio_proc(void *arg); 863static void ecb_noinline
358 864req_set_path1 (aio_req req, SV *path)
359static void start_thread (void)
360{ 865{
361 sigset_t fullsigset, oldsigset; 866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
362 pthread_t tid;
363 pthread_attr_t attr;
364
365 pthread_attr_init (&attr);
366 pthread_attr_setstacksize (&attr, STACKSIZE);
367 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
368
369 sigfillset (&fullsigset);
370 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
371
372 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
373 started++;
374
375 sigprocmask (SIG_SETMASK, &oldsigset, 0);
376} 867}
377 868
378static void req_send (aio_req req) 869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
379{ 871{
380 while (started < wanted && nreqs >= started) 872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
381 start_thread ();
382 873
383 nreqs++; 874 switch (SvTYPE (rv))
384
385 pthread_mutex_lock (&reqlock);
386
387 req->next = 0;
388
389 if (reqe)
390 { 875 {
391 reqe->next = req; 876 case SVt_PVIO:
392 reqe = req; 877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882 break;
883
884 default:
885 req->type = type_path;
886 req_set_path1 (req, fh_or_path);
887 break;
393 } 888 }
394 else
395 reqe = reqs = req;
396
397 pthread_cond_signal (&reqwait);
398 pthread_mutex_unlock (&reqlock);
399
400 if (nreqs > max_outstanding)
401 for (;;)
402 {
403 poll_cb ();
404
405 if (nreqs <= max_outstanding)
406 break;
407
408 poll_wait ();
409 }
410} 889}
411 890
412static void end_thread (void) 891XS(boot_IO__AIO) ecb_cold;
413{
414 aio_req req;
415 Newz (0, req, 1, aio_cb);
416 req->type = REQ_QUIT;
417 892
418 req_send (req); 893MODULE = IO::AIO PACKAGE = IO::AIO
419}
420 894
421static void min_parallel (int nthreads) 895PROTOTYPES: ENABLE
422{
423 if (wanted < nthreads)
424 wanted = nthreads;
425}
426 896
427static void max_parallel (int nthreads) 897BOOT:
428{ 898{
429 int cur = started; 899 static const struct {
900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
430 906
431 if (wanted > nthreads) 907 /* you have to re-run ./gendef0 after adding/removing any constants here */
432 wanted = nthreads; 908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
433 912
434 while (cur > wanted) 913 /* for lseek */
435 { 914 const_iv (SEEK_DATA)
436 end_thread (); 915 const_iv (SEEK_HOLE)
437 cur--;
438 }
439 916
440 while (started > wanted) 917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
441 { 918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
442 poll_wait (); 919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
443 poll_cb (); 920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
444 } 921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
445} 922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
446 923
447static void create_pipe () 924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
448{ 925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
449 if (pipe (respipe)) 926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
450 croak ("unable to initialize result pipe"); 927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
451 930
452 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 931 /* the second block will be 0 when missing */
453 croak ("cannot set result pipe to nonblocking mode"); 932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
454 939
455 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 940 const_iv (O_ASYNC)
456 croak ("cannot set result pipe to nonblocking mode"); 941 const_iv (O_DIRECT)
457} 942 const_iv (O_NOATIME)
458 943
459/*****************************************************************************/ 944 const_iv (O_CLOEXEC)
460/* work around various missing functions */ 945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
461 957
462#if !HAVE_PREADWRITE 958 const_iv (S_IFIFO)
463# define pread aio_pread 959 const_iv (S_IFCHR)
464# define pwrite aio_pwrite 960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
465 967
466/* 968 const_iv (ST_RDONLY)
467 * make our pread/pwrite safe against themselves, but not against 969 const_iv (ST_NOSUID)
468 * normal read/write by using a mutex. slows down execution a lot, 970 const_iv (ST_NODEV)
469 * but that's your problem, not mine. 971 const_iv (ST_NOEXEC)
470 */ 972 const_iv (ST_SYNCHRONOUS)
471static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
472 980
473static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 981 const_iv (PROT_NONE)
474{ 982 const_iv (PROT_EXEC)
475 ssize_t res; 983 const_iv (PROT_READ)
476 off_t ooffset; 984 const_iv (PROT_WRITE)
477 985
478 pthread_mutex_lock (&preadwritelock); 986 const_iv (MAP_PRIVATE)
479 ooffset = lseek (fd, 0, SEEK_CUR); 987 const_iv (MAP_SHARED)
480 lseek (fd, offset, SEEK_SET); 988 const_iv (MAP_FIXED)
481 res = read (fd, buf, count); 989 const_iv (MAP_ANONYMOUS)
482 lseek (fd, ooffset, SEEK_SET);
483 pthread_mutex_unlock (&preadwritelock);
484 990
485 return res; 991 /* linuxish */
486} 992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
487 1000
488static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1001 const_iv (F_DUPFD_CLOEXEC)
489{
490 ssize_t res;
491 off_t ooffset;
492 1002
493 pthread_mutex_lock (&preadwritelock); 1003 const_iv (F_OFD_GETLK)
494 ooffset = lseek (fd, 0, SEEK_CUR); 1004 const_iv (F_OFD_SETLK)
495 lseek (fd, offset, SEEK_SET); 1005 const_iv (F_OFD_GETLKW)
496 res = write (fd, buf, count);
497 lseek (fd, offset, SEEK_SET);
498 pthread_mutex_unlock (&preadwritelock);
499 1006
500 return res; 1007 const_iv (FIFREEZE)
501} 1008 const_iv (FITHAW)
502#endif 1009 const_iv (FITRIM)
1010 const_iv (FICLONE)
1011 const_iv (FICLONERANGE)
1012 const_iv (FIDEDUPERANGE)
503 1013
504#if !HAVE_FDATASYNC 1014 const_iv (FS_IOC_GETFLAGS)
505# define fdatasync fsync 1015 const_iv (FS_IOC_SETFLAGS)
506#endif 1016 const_iv (FS_IOC_GETVERSION)
1017 const_iv (FS_IOC_SETVERSION)
1018 const_iv (FS_IOC_FIEMAP)
1019 const_iv (FS_IOC_FSGETXATTR)
1020 const_iv (FS_IOC_FSSETXATTR)
1021 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1022 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1023 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
507 1024
508#if !HAVE_READAHEAD 1025 const_iv (FS_KEY_DESCRIPTOR_SIZE)
509# define readahead aio_readahead
510 1026
511static ssize_t readahead (int fd, off_t offset, size_t count) 1027 const_iv (FS_SECRM_FL)
512{ 1028 const_iv (FS_UNRM_FL)
513 char readahead_buf[4096]; 1029 const_iv (FS_COMPR_FL)
1030 const_iv (FS_SYNC_FL)
1031 const_iv (FS_IMMUTABLE_FL)
1032 const_iv (FS_APPEND_FL)
1033 const_iv (FS_NODUMP_FL)
1034 const_iv (FS_NOATIME_FL)
1035 const_iv (FS_DIRTY_FL)
1036 const_iv (FS_COMPRBLK_FL)
1037 const_iv (FS_NOCOMP_FL)
1038 const_iv (FS_ENCRYPT_FL)
1039 const_iv (FS_BTREE_FL)
1040 const_iv (FS_INDEX_FL)
1041 const_iv (FS_JOURNAL_DATA_FL)
1042 const_iv (FS_NOTAIL_FL)
1043 const_iv (FS_DIRSYNC_FL)
1044 const_iv (FS_TOPDIR_FL)
1045 const_iv (FS_FL_USER_MODIFIABLE)
514 1046
515 while (count > 0) 1047 const_iv (FS_XFLAG_REALTIME)
516 { 1048 const_iv (FS_XFLAG_PREALLOC)
517 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 1049 const_iv (FS_XFLAG_IMMUTABLE)
1050 const_iv (FS_XFLAG_APPEND)
1051 const_iv (FS_XFLAG_SYNC)
1052 const_iv (FS_XFLAG_NOATIME)
1053 const_iv (FS_XFLAG_NODUMP)
1054 const_iv (FS_XFLAG_RTINHERIT)
1055 const_iv (FS_XFLAG_PROJINHERIT)
1056 const_iv (FS_XFLAG_NOSYMLINKS)
1057 const_iv (FS_XFLAG_EXTSIZE)
1058 const_iv (FS_XFLAG_EXTSZINHERIT)
1059 const_iv (FS_XFLAG_NODEFRAG)
1060 const_iv (FS_XFLAG_FILESTREAM)
1061 const_iv (FS_XFLAG_DAX)
1062 const_iv (FS_XFLAG_HASATTR)
518 1063
519 pread (fd, readahead_buf, len, offset); 1064 const_iv (FIEMAP_FLAG_SYNC)
520 offset += len; 1065 const_iv (FIEMAP_FLAG_XATTR)
521 count -= len; 1066 const_iv (FIEMAP_FLAGS_COMPAT)
522 } 1067 const_iv (FIEMAP_EXTENT_LAST)
1068 const_iv (FIEMAP_EXTENT_UNKNOWN)
1069 const_iv (FIEMAP_EXTENT_DELALLOC)
1070 const_iv (FIEMAP_EXTENT_ENCODED)
1071 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1072 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1073 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1074 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1075 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1076 const_iv (FIEMAP_EXTENT_MERGED)
1077 const_iv (FIEMAP_EXTENT_SHARED)
523 1078
524 errno = 0; 1079 const_iv (SPLICE_F_MOVE)
525} 1080 const_iv (SPLICE_F_NONBLOCK)
526#endif 1081 const_iv (SPLICE_F_MORE)
1082 const_iv (SPLICE_F_GIFT)
527 1083
528#if !HAVE_READDIR_R 1084 /* these are libeio constants, and are independent of gendef0 */
529# define readdir_r aio_readdir_r 1085 const_eio (SEEK_SET)
1086 const_eio (SEEK_CUR)
1087 const_eio (SEEK_END)
530 1088
531static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1089 const_eio (MCL_FUTURE)
532 1090 const_eio (MCL_CURRENT)
533static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
534{
535 struct dirent *e;
536 int errorno;
537 1091
538 pthread_mutex_lock (&readdirlock); 1092 const_eio (MS_ASYNC)
1093 const_eio (MS_INVALIDATE)
1094 const_eio (MS_SYNC)
539 1095
540 e = readdir (dirp); 1096 const_eio (MT_MODIFY)
541 errorno = errno;
542 1097
543 if (e) 1098 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
544 { 1099 const_eio (SYNC_FILE_RANGE_WRITE)
545 *res = ent; 1100 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
546 strcpy (ent->d_name, e->d_name);
547 }
548 else
549 *res = 0;
550 1101
551 pthread_mutex_unlock (&readdirlock); 1102 const_eio (FALLOC_FL_KEEP_SIZE)
1103 const_eio (FALLOC_FL_PUNCH_HOLE)
1104 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1105 const_eio (FALLOC_FL_ZERO_RANGE)
552 1106
553 errno = errorno; 1107 const_eio (RENAME_NOREPLACE)
554 return e ? 0 : -1; 1108 const_eio (RENAME_EXCHANGE)
555} 1109 const_eio (RENAME_WHITEOUT)
556#endif
557 1110
558/* sendfile always needs emulation */ 1111 const_eio (READDIR_DENTS)
559static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1112 const_eio (READDIR_DIRS_FIRST)
560{ 1113 const_eio (READDIR_STAT_ORDER)
561 ssize_t res; 1114 const_eio (READDIR_FOUND_UNKNOWN)
562 1115
563 if (!count) 1116 const_eio (DT_UNKNOWN)
564 return 0; 1117 const_eio (DT_FIFO)
565 1118 const_eio (DT_CHR)
566#if HAVE_SENDFILE 1119 const_eio (DT_DIR)
567# if __linux 1120 const_eio (DT_BLK)
568 res = sendfile (ofd, ifd, &offset, count); 1121 const_eio (DT_REG)
569 1122 const_eio (DT_LNK)
570# elif __freebsd 1123 const_eio (DT_SOCK)
571 /* 1124 const_eio (DT_WHT)
572 * Of course, the freebsd sendfile is a dire hack with no thoughts
573 * wasted on making it similar to other I/O functions.
574 */
575 {
576 off_t sbytes;
577 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
578
579 if (res < 0 && sbytes)
580 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
581 res = sbytes;
582 } 1125 };
583 1126
584# elif __hpux 1127 aio_stash = gv_stashpv ("IO::AIO" , 1);
585 res = sendfile (ofd, ifd, offset, count, 0, 0); 1128 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1129 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1130 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
586 1131
587# elif __solaris 1132 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
588 { 1133 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
589 struct sendfilevec vec;
590 size_t sbytes;
591 1134
592 vec.sfv_fd = ifd; 1135 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
593 vec.sfv_flag = 0;
594 vec.sfv_off = offset;
595 vec.sfv_len = count;
596 1136
597 res = sendfilev (ofd, &vec, 1, &sbytes); 1137 reinit ();
1138}
598 1139
599 if (res < 0 && sbytes) 1140void
1141reinit ()
1142 PROTOTYPE:
1143
1144void
1145max_poll_reqs (unsigned int nreqs)
1146 PROTOTYPE: $
1147 CODE:
1148 eio_set_max_poll_reqs (nreqs);
1149
1150void
1151max_poll_time (double nseconds)
1152 PROTOTYPE: $
1153 CODE:
1154 eio_set_max_poll_time (nseconds);
1155
1156void
1157min_parallel (unsigned int nthreads)
1158 PROTOTYPE: $
1159 CODE:
1160 eio_set_min_parallel (nthreads);
1161
1162void
1163max_parallel (unsigned int nthreads)
1164 PROTOTYPE: $
1165 CODE:
1166 eio_set_max_parallel (nthreads);
1167
1168void
1169max_idle (unsigned int nthreads)
1170 PROTOTYPE: $
1171 CODE:
1172 eio_set_max_idle (nthreads);
1173
1174void
1175idle_timeout (unsigned int seconds)
1176 PROTOTYPE: $
1177 CODE:
1178 eio_set_idle_timeout (seconds);
1179
1180void
1181max_outstanding (unsigned int maxreqs)
1182 PROTOTYPE: $
1183 CODE:
1184 max_outstanding = maxreqs;
1185
1186void
1187aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1188 PPCODE:
1189{
1190 dREQ;
1191
1192 req->type = EIO_WD_OPEN;
1193 req_set_path1 (req, pathname);
1194
1195 REQ_SEND;
1196}
1197
1198void
1199aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1200 PPCODE:
1201{
1202 dREQ;
1203
1204 req->type = EIO_OPEN;
1205 req_set_path1 (req, pathname);
1206 req->int1 = flags;
1207 req->int2 = mode;
1208
1209 REQ_SEND;
1210}
1211
1212void
1213aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1214 ALIAS:
1215 aio_fsync = EIO_FSYNC
1216 aio_fdatasync = EIO_FDATASYNC
1217 aio_syncfs = EIO_SYNCFS
1218 PPCODE:
1219{
1220 int fd = s_fileno_croak (fh, 0);
1221 dREQ;
1222
1223 req->type = ix;
1224 req->sv1 = newSVsv (fh);
1225 req->int1 = fd;
1226
1227 REQ_SEND;
1228}
1229
1230void
1231aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1232 PPCODE:
1233{
1234 int fd = s_fileno_croak (fh, 0);
1235 dREQ;
1236
1237 req->type = EIO_SYNC_FILE_RANGE;
1238 req->sv1 = newSVsv (fh);
1239 req->int1 = fd;
1240 req->offs = offset;
600 res = sbytes; 1241 req->size = nbytes;
601 } 1242 req->int2 = flags;
602 1243
603# endif 1244 REQ_SEND;
1245}
1246
1247void
1248aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1249 PPCODE:
1250{
1251 int fd = s_fileno_croak (fh, 0);
1252 dREQ;
1253
1254 req->type = EIO_FALLOCATE;
1255 req->sv1 = newSVsv (fh);
1256 req->int1 = fd;
1257 req->int2 = mode;
1258 req->offs = offset;
1259 req->size = len;
1260
1261 REQ_SEND;
1262}
1263
1264void
1265aio_close (SV *fh, SV *callback = &PL_sv_undef)
1266 PPCODE:
1267{
1268 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1269 int fd = s_fileno_croak (fh, 0);
1270 dREQ;
1271
1272 if (expect_false (close_fd < 0))
1273 {
1274 int pipefd [2];
1275
1276 if (
1277#ifdef _WIN32
1278 _pipe (pipefd, 1, _O_BINARY) < 0
604#else 1279#else
605 res = -1; 1280 pipe (pipefd) < 0
606 errno = ENOSYS; 1281 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
607#endif 1282#endif
608 1283 || close (pipefd [1]) < 0
609 if (res < 0
610 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
611#if __solaris
612 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
613#endif
614 )
615 )
616 {
617 /* emulate sendfile. this is a major pain in the ass */
618 char buf[4096];
619 res = 0;
620
621 while (count)
622 {
623 ssize_t cnt;
624
625 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
626
627 if (cnt <= 0)
628 { 1284 )
629 if (cnt && !res) res = -1; 1285 abort (); /*D*/
630 break;
631 }
632 1286
633 cnt = write (ofd, buf, cnt); 1287 close_fd = pipefd [0];
634
635 if (cnt <= 0)
636 {
637 if (cnt && !res) res = -1;
638 break;
639 }
640
641 offset += cnt;
642 res += cnt;
643 count -= cnt;
644 }
645 }
646
647 return res;
648}
649
650/* read a full directory */
651static int scandir_ (const char *path, void **namesp)
652{
653 DIR *dirp = opendir (path);
654 union
655 {
656 struct dirent d;
657 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
658 } u;
659 struct dirent *entp;
660 char *name, *names;
661 int memlen = 4096;
662 int memofs = 0;
663 int res = 0;
664 int errorno;
665
666 if (!dirp)
667 return -1;
668
669 names = malloc (memlen);
670
671 for (;;)
672 {
673 errno = 0, readdir_r (dirp, &u.d, &entp);
674
675 if (!entp)
676 break;
677
678 name = entp->d_name;
679
680 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
681 {
682 int len = strlen (name) + 1;
683
684 res++;
685
686 while (memofs + len > memlen)
687 {
688 memlen *= 2;
689 names = realloc (names, memlen);
690 if (!names)
691 break;
692 }
693
694 memcpy (names + memofs, name, len);
695 memofs += len;
696 }
697 }
698
699 errorno = errno;
700 closedir (dirp);
701
702 if (errorno)
703 {
704 free (names);
705 errno = errorno;
706 res = -1;
707 }
708
709 *namesp = (void *)names;
710 return res;
711}
712
713/*****************************************************************************/
714
715static void *aio_proc (void *thr_arg)
716{
717 aio_req req;
718 int type;
719
720 do
721 {
722 pthread_mutex_lock (&reqlock);
723
724 for (;;)
725 {
726 req = reqs;
727
728 if (reqs)
729 {
730 reqs = reqs->next;
731 if (!reqs) reqe = 0;
732 }
733
734 if (req)
735 break;
736
737 pthread_cond_wait (&reqwait, &reqlock);
738 }
739
740 pthread_mutex_unlock (&reqlock);
741
742 errno = 0; /* strictly unnecessary */
743
744 if (!req->cancelled)
745 switch (req->type)
746 {
747 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
748 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
749
750 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
751 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
752
753 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
754 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
755 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
756
757 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
758 case REQ_CLOSE: req->result = close (req->fd); break;
759 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
760 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
761 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
762 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
763 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
764
765 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
766 case REQ_FSYNC: req->result = fsync (req->fd); break;
767 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
768
769 case REQ_SLEEP:
770 {
771 struct timeval tv;
772
773 tv.tv_sec = req->fd;
774 tv.tv_usec = req->fd2;
775
776 req->result = select (0, 0, 0, 0, &tv);
777 }
778
779 case REQ_QUIT:
780 break;
781
782 default:
783 req->result = ENOSYS;
784 break;
785 } 1288 }
786 1289
787 req->errorno = errno; 1290 req->type = EIO_DUP2;
788 1291 req->int1 = close_fd;
789 pthread_mutex_lock (&reslock); 1292 req->sv2 = newSVsv (fh);
790
791 req->next = 0; 1293 req->int2 = fd;
792 1294
793 if (rese) 1295 REQ_SEND;
794 {
795 rese->next = req;
796 rese = req;
797 }
798 else
799 {
800 rese = ress = req;
801
802 /* write a dummy byte to the pipe so fh becomes ready */
803 write (respipe [1], &respipe, 1);
804 }
805
806 pthread_mutex_unlock (&reslock);
807 }
808 while (type != REQ_QUIT);
809
810 return 0;
811} 1296}
812 1297
813/*****************************************************************************/
814
815static void atfork_prepare (void)
816{
817 pthread_mutex_lock (&reqlock);
818 pthread_mutex_lock (&reslock);
819#if !HAVE_PREADWRITE
820 pthread_mutex_lock (&preadwritelock);
821#endif
822#if !HAVE_READDIR_R
823 pthread_mutex_lock (&readdirlock);
824#endif
825}
826
827static void atfork_parent (void)
828{
829#if !HAVE_READDIR_R
830 pthread_mutex_unlock (&readdirlock);
831#endif
832#if !HAVE_PREADWRITE
833 pthread_mutex_unlock (&preadwritelock);
834#endif
835 pthread_mutex_unlock (&reslock);
836 pthread_mutex_unlock (&reqlock);
837}
838
839static void atfork_child (void)
840{
841 aio_req prv;
842
843 started = 0;
844
845 while (reqs)
846 {
847 prv = reqs;
848 reqs = prv->next;
849 req_free (prv);
850 }
851
852 reqs = reqe = 0;
853
854 while (ress)
855 {
856 prv = ress;
857 ress = prv->next;
858 req_free (prv);
859 }
860
861 ress = rese = 0;
862
863 close (respipe [0]);
864 close (respipe [1]);
865 create_pipe ();
866
867 atfork_parent ();
868}
869
870#define dREQ \
871 aio_req req; \
872 \
873 if (SvOK (callback) && !SvROK (callback)) \
874 croak ("callback must be undef or of reference type"); \
875 \
876 Newz (0, req, 1, aio_cb); \
877 if (!req) \
878 croak ("out of memory during aio_req allocation"); \
879 \
880 req->callback = newSVsv (callback)
881
882#define REQ_SEND \
883 req_send (req); \
884 \
885 if (GIMME_V != G_VOID) \
886 XPUSHs (req_sv (req, AIO_REQ_KLASS));
887
888MODULE = IO::AIO PACKAGE = IO::AIO
889
890PROTOTYPES: ENABLE
891
892BOOT:
893{
894 HV *stash = gv_stashpv ("IO::AIO", 1);
895 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
896 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
897 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
898
899 create_pipe ();
900 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
901}
902
903void 1298void
904min_parallel (nthreads) 1299aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
905 int nthreads
906 PROTOTYPE: $
907
908void
909max_parallel (nthreads)
910 int nthreads
911 PROTOTYPE: $
912
913int
914max_outstanding (nreqs)
915 int nreqs
916 PROTOTYPE: $
917 CODE: 1300 PPCODE:
918 RETVAL = max_outstanding;
919 max_outstanding = nreqs;
920
921void
922aio_open (pathname,flags,mode,callback=&PL_sv_undef)
923 SV * pathname
924 int flags
925 int mode
926 SV * callback
927 PROTOTYPE: $$$;$
928 PPCODE:
929{ 1301{
1302 int fd = s_fileno_croak (fh, 0);
930 dREQ; 1303 dREQ;
931 1304
932 req->type = REQ_OPEN; 1305 req->type = EIO_SEEK;
933 req->data = newSVsv (pathname); 1306 req->sv1 = newSVsv (fh);
934 req->dataptr = SvPVbyte_nolen (req->data); 1307 req->int1 = fd;
935 req->fd = flags; 1308 req->offs = SvVAL64 (offset);
936 req->mode = mode; 1309 req->int2 = whence;
937 1310
938 REQ_SEND; 1311 REQ_SEND;
939} 1312}
940 1313
941void 1314void
942aio_close (fh,callback=&PL_sv_undef) 1315aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
943 SV * fh
944 SV * callback
945 PROTOTYPE: $;$
946 ALIAS: 1316 ALIAS:
947 aio_close = REQ_CLOSE
948 aio_fsync = REQ_FSYNC
949 aio_fdatasync = REQ_FDATASYNC
950 PPCODE:
951{
952 dREQ;
953
954 req->type = ix;
955 req->fh = newSVsv (fh);
956 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
957
958 REQ_SEND (req);
959}
960
961void
962aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
963 SV * fh
964 UV offset
965 UV length
966 SV * data
967 UV dataoffset
968 SV * callback
969 ALIAS:
970 aio_read = REQ_READ 1317 aio_read = EIO_READ
971 aio_write = REQ_WRITE 1318 aio_write = EIO_WRITE
972 PROTOTYPE: $$$$$;$
973 PPCODE: 1319 PPCODE:
974{ 1320{
975 aio_req req;
976 STRLEN svlen; 1321 STRLEN svlen;
1322 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
977 char *svptr = SvPVbyte (data, svlen); 1323 char *svptr = SvPVbyte (data, svlen);
978 1324 UV len = SvUV (length);
979 SvUPGRADE (data, SVt_PV);
980 SvPOK_on (data);
981 1325
982 if (dataoffset < 0) 1326 if (dataoffset < 0)
983 dataoffset += svlen; 1327 dataoffset += svlen;
984 1328
985 if (dataoffset < 0 || dataoffset > svlen) 1329 if (dataoffset < 0 || dataoffset > svlen)
986 croak ("data offset outside of string"); 1330 croak ("dataoffset outside of data scalar");
987 1331
988 if (ix == REQ_WRITE) 1332 if (ix == EIO_WRITE)
989 { 1333 {
990 /* write: check length and adjust. */ 1334 /* write: check length and adjust. */
991 if (length < 0 || length + dataoffset > svlen) 1335 if (!SvOK (length) || len + dataoffset > svlen)
992 length = svlen - dataoffset; 1336 len = svlen - dataoffset;
993 } 1337 }
994 else 1338 else
995 { 1339 {
996 /* read: grow scalar as necessary */ 1340 /* read: check type and grow scalar as necessary */
1341 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
997 svptr = SvGROW (data, length + dataoffset); 1342 svptr = sv_grow (data, len + dataoffset + 1);
1343 else if (SvCUR (data) < len + dataoffset)
1344 croak ("length + dataoffset outside of scalar, and cannot grow");
998 } 1345 }
999
1000 if (length < 0)
1001 croak ("length must not be negative");
1002 1346
1003 { 1347 {
1004 dREQ; 1348 dREQ;
1005 1349
1006 req->type = ix; 1350 req->type = ix;
1007 req->fh = newSVsv (fh); 1351 req->sv1 = newSVsv (fh);
1008 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1352 req->int1 = fd;
1009 : IoOFP (sv_2io (fh))); 1353 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1010 req->offset = offset; 1354 req->size = len;
1011 req->length = length;
1012 req->data = SvREFCNT_inc (data); 1355 req->sv2 = SvREFCNT_inc (data);
1013 req->dataptr = (char *)svptr + dataoffset; 1356 req->ptr2 = (char *)svptr + dataoffset;
1357 req->stroffset = dataoffset;
1014 1358
1015 if (!SvREADONLY (data)) 1359 if (!SvREADONLY (data))
1016 { 1360 {
1017 SvREADONLY_on (data); 1361 SvREADONLY_on (data);
1018 req->data2ptr = (void *)data; 1362 req->flags |= FLAG_SV2_RO_OFF;
1019 } 1363 }
1020 1364
1021 REQ_SEND; 1365 REQ_SEND;
1022 } 1366 }
1023} 1367}
1024 1368
1025void 1369void
1026aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1370aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1027 SV * out_fh 1371 ALIAS:
1028 SV * in_fh 1372 aio_ioctl = EIO_IOCTL
1029 UV in_offset 1373 aio_fcntl = EIO_FCNTL
1030 UV length
1031 SV * callback
1032 PROTOTYPE: $$$$;$
1033 PPCODE: 1374 PPCODE:
1034{ 1375{
1035 dREQ; 1376 int fd = s_fileno_croak (fh, 0);
1377 char *svptr;
1036 1378
1037 req->type = REQ_SENDFILE; 1379 if (SvPOK (arg) || !SvNIOK (arg))
1038 req->fh = newSVsv (out_fh);
1039 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1040 req->fh2 = newSVsv (in_fh);
1041 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1042 req->offset = in_offset;
1043 req->length = length;
1044
1045 REQ_SEND;
1046}
1047
1048void
1049aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1050 SV * fh
1051 UV offset
1052 IV length
1053 SV * callback
1054 PROTOTYPE: $$$;$
1055 PPCODE:
1056{
1057 dREQ;
1058
1059 req->type = REQ_READAHEAD;
1060 req->fh = newSVsv (fh);
1061 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1062 req->offset = offset;
1063 req->length = length;
1064
1065 REQ_SEND;
1066}
1067
1068void
1069aio_stat (fh_or_path,callback=&PL_sv_undef)
1070 SV * fh_or_path
1071 SV * callback
1072 ALIAS:
1073 aio_stat = REQ_STAT
1074 aio_lstat = REQ_LSTAT
1075 PPCODE:
1076{
1077 dREQ;
1078
1079 New (0, req->statdata, 1, Stat_t);
1080 if (!req->statdata)
1081 { 1380 {
1082 req_free (req); 1381 STRLEN svlen;
1083 croak ("out of memory during aio_req->statdata allocation"); 1382 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1084 } 1383#ifdef IOCPARM_LEN
1384 STRLEN need = IOCPARM_LEN (request);
1385#else
1386 STRLEN need = 256;
1387#endif
1085 1388
1086 if (SvPOK (fh_or_path)) 1389 if (svlen < need)
1087 { 1390 svptr = SvGROW (arg, need);
1088 req->type = ix;
1089 req->data = newSVsv (fh_or_path);
1090 req->dataptr = SvPVbyte_nolen (req->data);
1091 } 1391 }
1092 else 1392 else
1393 svptr = (char *)SvIV (arg);
1394
1093 { 1395 {
1396 dREQ;
1397
1094 req->type = REQ_FSTAT; 1398 req->type = ix;
1095 req->fh = newSVsv (fh_or_path); 1399 req->sv1 = newSVsv (fh);
1096 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1400 req->int1 = fd;
1401 req->int2 = (long)request;
1402 req->sv2 = SvREFCNT_inc (arg);
1403 req->ptr2 = svptr;
1404
1405 REQ_SEND;
1097 } 1406 }
1407}
1408
1409void
1410aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1411 ALIAS:
1412 aio_readlink = EIO_READLINK
1413 aio_realpath = EIO_REALPATH
1414 PPCODE:
1415{
1416 dREQ;
1417
1418 req->type = ix;
1419 req_set_path1 (req, pathname);
1098 1420
1099 REQ_SEND; 1421 REQ_SEND;
1100} 1422}
1101 1423
1102void 1424void
1103aio_unlink (pathname,callback=&PL_sv_undef) 1425aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1104 SV * pathname 1426 PPCODE:
1105 SV * callback 1427{
1428 int ifd = s_fileno_croak (in_fh , 0);
1429 int ofd = s_fileno_croak (out_fh, 1);
1430 dREQ;
1431
1432 req->type = EIO_SENDFILE;
1433 req->sv1 = newSVsv (out_fh);
1434 req->int1 = ofd;
1435 req->sv2 = newSVsv (in_fh);
1436 req->int2 = ifd;
1437 req->offs = in_offset;
1438 req->size = length;
1439
1440 REQ_SEND;
1441}
1442
1443void
1444aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1445 PPCODE:
1446{
1447 int fd = s_fileno_croak (fh, 0);
1448 dREQ;
1449
1450 req->type = EIO_READAHEAD;
1451 req->sv1 = newSVsv (fh);
1452 req->int1 = fd;
1453 req->offs = offset;
1454 req->size = length;
1455
1456 REQ_SEND;
1457}
1458
1459void
1460aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1106 ALIAS: 1461 ALIAS:
1462 aio_stat = EIO_STAT
1463 aio_lstat = EIO_LSTAT
1464 aio_statvfs = EIO_STATVFS
1465 PPCODE:
1466{
1467 dREQ;
1468
1469 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1470
1471 REQ_SEND;
1472}
1473
1474UV
1475major (UV dev)
1476 ALIAS:
1477 minor = 1
1478 CODE:
1479 RETVAL = ix ? minor (dev) : major (dev);
1480 OUTPUT:
1481 RETVAL
1482
1483UV
1484makedev (UV maj, UV min)
1485 CODE:
1486 RETVAL = makedev (maj, min);
1487 OUTPUT:
1488 RETVAL
1489
1490void
1491aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1492 PPCODE:
1493{
1494 dREQ;
1495
1496 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1497 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1498 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1499
1500 REQ_SEND;
1501}
1502
1503void
1504aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1505 PPCODE:
1506{
1507 dREQ;
1508
1509 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1510 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1511
1512 REQ_SEND;
1513}
1514
1515void
1516aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1517 PPCODE:
1518{
1519 dREQ;
1520
1521 req->int2 = mode;
1522 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1523
1524 REQ_SEND;
1525}
1526
1527void
1528aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1529 PPCODE:
1530{
1531 dREQ;
1532
1533 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1534 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1535 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1536
1537 REQ_SEND;
1538}
1539
1540void
1541aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1542 PPCODE:
1543{
1544 dREQ;
1545
1546 req->type = EIO_READDIR;
1547 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1548
1549 if (flags & EIO_READDIR_DENTS)
1550 req->int1 |= EIO_READDIR_CUSTOM2;
1551
1552 req_set_path1 (req, pathname);
1553
1554 REQ_SEND;
1555}
1556
1557void
1558aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1559 PPCODE:
1560{
1561 dREQ;
1562
1563 req->type = EIO_MKDIR;
1564 req->int2 = mode;
1565 req_set_path1 (req, pathname);
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1572 ALIAS:
1107 aio_unlink = REQ_UNLINK 1573 aio_unlink = EIO_UNLINK
1108 aio_rmdir = REQ_RMDIR 1574 aio_rmdir = EIO_RMDIR
1109 aio_readdir = REQ_READDIR 1575 aio_readdir = EIO_READDIR
1110 PPCODE: 1576 PPCODE:
1111{ 1577{
1112 dREQ; 1578 dREQ;
1113 1579
1114 req->type = ix; 1580 req->type = ix;
1115 req->data = newSVsv (pathname); 1581 req_set_path1 (req, pathname);
1116 req->dataptr = SvPVbyte_nolen (req->data); 1582
1117
1118 REQ_SEND; 1583 REQ_SEND;
1119} 1584}
1120 1585
1121void 1586void
1122aio_link (oldpath,newpath,callback=&PL_sv_undef) 1587aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1123 SV * oldpath
1124 SV * newpath
1125 SV * callback
1126 ALIAS: 1588 ALIAS:
1127 aio_link = REQ_LINK 1589 aio_link = EIO_LINK
1128 aio_symlink = REQ_SYMLINK 1590 aio_symlink = EIO_SYMLINK
1129 aio_rename = REQ_RENAME 1591 aio_rename = EIO_RENAME
1130 PPCODE: 1592 PPCODE:
1131{ 1593{
1594 eio_wd wd2 = 0;
1132 dREQ; 1595 dREQ;
1133 1596
1134 req->type = ix; 1597 req->type = ix;
1135 req->fh = newSVsv (oldpath); 1598 req_set_path1 (req, oldpath);
1136 req->data2ptr = SvPVbyte_nolen (req->fh); 1599 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1137 req->data = newSVsv (newpath); 1600 req->int3 = (long)wd2;
1138 req->dataptr = SvPVbyte_nolen (req->data);
1139 1601
1140 REQ_SEND; 1602 REQ_SEND;
1141} 1603}
1142 1604
1143void 1605void
1144aio_sleep (delay,callback=&PL_sv_undef) 1606aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1145 double delay
1146 SV * callback
1147 PPCODE: 1607 PPCODE:
1148{ 1608{
1609 eio_wd wd2 = 0;
1149 dREQ; 1610 dREQ;
1150 1611
1151 req->type = REQ_SLEEP; 1612 req->type = EIO_RENAME;
1152 req->fd = delay < 0. ? 0 : delay; 1613 req_set_path1 (req, oldpath);
1153 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1614 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1154 1615 req->int2 = flags;
1616 req->int3 = (long)wd2;
1617
1155 REQ_SEND; 1618 REQ_SEND;
1156} 1619}
1157 1620
1158void 1621void
1159aio_group (callback=&PL_sv_undef) 1622aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1160 SV * callback 1623 PPCODE:
1161 PROTOTYPE: ;$ 1624{
1625 dREQ;
1626
1627 req->type = EIO_MKNOD;
1628 req->int2 = (mode_t)mode;
1629 req->offs = dev;
1630 req_set_path1 (req, pathname);
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1637 ALIAS:
1638 aio_mtouch = EIO_MTOUCH
1639 aio_msync = EIO_MSYNC
1162 PPCODE: 1640 PPCODE:
1163{ 1641{
1642 STRLEN svlen;
1643 char *svptr = SvPVbyte (data, svlen);
1644 UV len = SvUV (length);
1645
1646 if (flags < 0)
1647 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1648
1649 if (offset < 0)
1650 offset += svlen;
1651
1652 if (offset < 0 || offset > svlen)
1653 croak ("offset outside of scalar");
1654
1655 if (!SvOK (length) || len + offset > svlen)
1656 len = svlen - offset;
1657
1658 {
1659 dREQ;
1660
1661 req->type = ix;
1662 req->sv2 = SvREFCNT_inc (data);
1663 req->ptr2 = (char *)svptr + offset;
1664 req->size = len;
1665 req->int1 = flags;
1666
1667 REQ_SEND;
1668 }
1669}
1670
1671void
1672aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1673 PPCODE:
1674{
1675 STRLEN svlen;
1676 char *svptr = SvPVbyte (data, svlen);
1677 UV len = SvUV (length);
1678
1679 if (offset < 0)
1680 offset += svlen;
1681
1682 if (offset < 0 || offset > svlen)
1683 croak ("offset outside of scalar");
1684
1685 if (!SvOK (length) || len + offset > svlen)
1686 len = svlen - offset;
1687
1688 {
1689 dREQ;
1690
1691 req->type = EIO_MLOCK;
1692 req->sv2 = SvREFCNT_inc (data);
1693 req->ptr2 = (char *)svptr + offset;
1694 req->size = len;
1695
1696 REQ_SEND;
1697 }
1698}
1699
1700void
1701aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1702 PPCODE:
1703{
1704 dREQ;
1705
1706 req->type = EIO_MLOCKALL;
1707 req->int1 = flags;
1708
1709 REQ_SEND;
1710}
1711
1712void
1713aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1714 PPCODE:
1715{
1716 int fd = s_fileno_croak (fh, 0);
1164 dREQ; 1717 dREQ;
1718
1719 req->type = EIO_CUSTOM;
1720 req->sv1 = newSVsv (fh);
1721 req->int1 = fd;
1722
1723 req->feed = fiemap;
1724#if HAVE_FIEMAP
1725 /* keep our fingers crossed that the next two types are 64 bit */
1726 req->offs = start;
1727 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1728 req->int2 = flags;
1729 req->int3 = SvOK (count) ? SvIV (count) : -1;
1730#endif
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_busy (double delay, SV *callback = &PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = EIO_BUSY;
1742 req->nv1 = delay < 0. ? 0. : delay;
1743
1744 REQ_SEND;
1745}
1746
1747void
1748aio_group (SV *callback = &PL_sv_undef)
1749 PPCODE:
1750{
1751 dREQ;
1752
1165 req->type = REQ_GROUP; 1753 req->type = EIO_GROUP;
1166 req->grp_next = req;
1167 req->grp_prev = req;
1168 1754
1755 PUTBACK;
1169 req_send (req); 1756 req_submit (req);
1757 SPAGAIN;
1758
1170 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1759 XPUSHs (req_sv (req, aio_grp_stash));
1171} 1760}
1761
1762void
1763aio_nop (SV *callback = &PL_sv_undef)
1764 ALIAS:
1765 aio_nop = EIO_NOP
1766 aio_sync = EIO_SYNC
1767 PPCODE:
1768{
1769 dREQ;
1770
1771 req->type = ix;
1772
1773 REQ_SEND;
1774}
1775
1776int
1777aioreq_pri (int pri = NO_INIT)
1778 CODE:
1779 RETVAL = next_pri;
1780 if (items > 0)
1781 {
1782 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1783 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1784 next_pri = pri;
1785 }
1786 OUTPUT:
1787 RETVAL
1788
1789void
1790aioreq_nice (int nice = 0)
1791 CODE:
1792 nice = next_pri - nice;
1793 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1794 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1795 next_pri = nice;
1172 1796
1173void 1797void
1174flush () 1798flush ()
1175 PROTOTYPE:
1176 CODE: 1799 CODE:
1177 while (nreqs) 1800 while (eio_nreqs ())
1178 { 1801 {
1179 poll_wait (); 1802 poll_wait ();
1180 poll_cb (); 1803 poll_cb ();
1181 } 1804 }
1182 1805
1183void 1806int
1184poll() 1807poll ()
1185 PROTOTYPE:
1186 CODE: 1808 CODE:
1187 if (nreqs)
1188 {
1189 poll_wait (); 1809 poll_wait ();
1190 poll_cb (); 1810 RETVAL = poll_cb ();
1191 }
1192
1193int
1194poll_fileno()
1195 PROTOTYPE:
1196 CODE:
1197 RETVAL = respipe [0];
1198 OUTPUT: 1811 OUTPUT:
1199 RETVAL 1812 RETVAL
1200 1813
1201int 1814int
1815poll_fileno ()
1816 CODE:
1817 RETVAL = s_epipe_fd (&respipe);
1818 OUTPUT:
1819 RETVAL
1820
1821int
1202poll_cb(...) 1822poll_cb (...)
1203 PROTOTYPE: 1823 PROTOTYPE:
1204 CODE: 1824 CODE:
1205 RETVAL = poll_cb (); 1825 RETVAL = poll_cb ();
1206 OUTPUT: 1826 OUTPUT:
1207 RETVAL 1827 RETVAL
1208 1828
1209void 1829void
1210poll_wait() 1830poll_wait ()
1211 PROTOTYPE:
1212 CODE: 1831 CODE:
1213 if (nreqs)
1214 poll_wait (); 1832 poll_wait ();
1215 1833
1216int 1834int
1217nreqs() 1835nreqs ()
1218 PROTOTYPE:
1219 CODE: 1836 CODE:
1220 RETVAL = nreqs; 1837 RETVAL = eio_nreqs ();
1221 OUTPUT: 1838 OUTPUT:
1222 RETVAL 1839 RETVAL
1223 1840
1841int
1842nready ()
1843 CODE:
1844 RETVAL = eio_nready ();
1845 OUTPUT:
1846 RETVAL
1847
1848int
1849npending ()
1850 CODE:
1851 RETVAL = eio_npending ();
1852 OUTPUT:
1853 RETVAL
1854
1855int
1856nthreads ()
1857 CODE:
1858 RETVAL = eio_nthreads ();
1859 OUTPUT:
1860 RETVAL
1861
1862int
1863fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1864 CODE:
1865 RETVAL = posix_fadvise (fh, offset, length, advice);
1866 OUTPUT:
1867 RETVAL
1868
1869IV
1870sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1871 CODE:
1872 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1873 OUTPUT:
1874 RETVAL
1875
1876void
1877mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1878 PPCODE:
1879 sv_unmagic (scalar, MMAP_MAGIC);
1880{
1881 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1882 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1883 if (addr == (void *)-1)
1884 XSRETURN_NO;
1885
1886 sv_force_normal (scalar);
1887
1888 /* we store the length in mg_obj, as namlen is I32 :/ */
1889 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1890 ->mg_obj = (SV *)length;
1891
1892 SvUPGRADE (scalar, SVt_PV); /* nop... */
1893
1894 if (!(prot & PROT_WRITE))
1895 SvREADONLY_on (scalar);
1896
1897 if (SvLEN (scalar))
1898 Safefree (SvPVX (scalar));
1899
1900 SvPVX (scalar) = (char *)addr;
1901 SvCUR_set (scalar, length);
1902 SvLEN_set (scalar, 0);
1903 SvPOK_only (scalar);
1904
1905 XSRETURN_YES;
1906}
1907
1908void
1909munmap (SV *scalar)
1910 CODE:
1911 sv_unmagic (scalar, MMAP_MAGIC);
1912
1913int
1914madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1915 ALIAS:
1916 mprotect = 1
1917 CODE:
1918{
1919 STRLEN svlen;
1920 void *addr = SvPVbyte (scalar, svlen);
1921 STRLEN len = SvUV (length);
1922
1923 if (offset < 0)
1924 offset += svlen;
1925
1926 if (offset < 0 || offset > svlen)
1927 croak ("offset outside of scalar");
1928
1929 if (!SvOK (length) || len + offset > svlen)
1930 len = svlen - offset;
1931
1932 addr = (void *)(((intptr_t)addr) + offset);
1933 eio_page_align (&addr, &len);
1934
1935 switch (ix)
1936 {
1937 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1938 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1939 }
1940}
1941 OUTPUT:
1942 RETVAL
1943
1944int
1945munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1946 CODE:
1947{
1948 STRLEN svlen;
1949 void *addr = SvPVbyte (scalar, svlen);
1950 size_t len = SvUV (length);
1951
1952 if (offset < 0)
1953 offset += svlen;
1954
1955 if (offset < 0 || offset > svlen)
1956 croak ("offset outside of scalar");
1957
1958 if (!SvOK (length) || len + offset > svlen)
1959 len = svlen - offset;
1960
1961 addr = (void *)(((intptr_t)addr) + offset);
1962 eio_page_align (&addr, &len);
1963#if _POSIX_MEMLOCK_RANGE
1964 RETVAL = munlock (addr, len);
1965#else
1966 RETVAL = EIO_ENOSYS ();
1967#endif
1968}
1969 OUTPUT:
1970 RETVAL
1971
1972int
1973munlockall ()
1974 CODE:
1975#if _POSIX_MEMLOCK
1976 munlockall ();
1977#else
1978 RETVAL = EIO_ENOSYS ();
1979#endif
1980 OUTPUT:
1981 RETVAL
1982
1983int
1984splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1985 CODE:
1986{
1987#if HAVE_LINUX_SPLICE
1988 loff_t off_in_, off_out_;
1989 RETVAL = splice (
1990 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1991 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1992 length, flags
1993 );
1994#else
1995 RETVAL = EIO_ENOSYS ();
1996#endif
1997}
1998 OUTPUT:
1999 RETVAL
2000
2001int
2002tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2003 CODE:
2004#if HAVE_LINUX_SPLICE
2005 RETVAL = tee (rfh, wfh, length, flags);
2006#else
2007 RETVAL = EIO_ENOSYS ();
2008#endif
2009 OUTPUT:
2010 RETVAL
2011
2012int
2013pipesize (aio_rfd rfh, int new_size = -1)
2014 PROTOTYPE: $;$
2015 CODE:
2016#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2017 if (new_size >= 0)
2018 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2019 else
2020 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2021#else
2022 errno = ENOSYS;
2023 RETVAL = -1;
2024#endif
2025 OUTPUT:
2026 RETVAL
2027
2028void
2029pipe2 (int flags = 0)
2030 PROTOTYPE: ;$
2031 PPCODE:
2032{
2033 int fd[2];
2034 int res;
2035
2036 if (flags)
2037#if HAVE_PIPE2
2038 res = pipe2 (fd, flags);
2039#else
2040 res = (errno = ENOSYS, -1);
2041#endif
2042 else
2043 res = pipe (fd);
2044
2045 if (!res)
2046 {
2047 EXTEND (SP, 2);
2048 PUSHs (newmortalFH (fd[0], O_RDONLY));
2049 PUSHs (newmortalFH (fd[1], O_WRONLY));
2050 }
2051}
2052
2053void _on_next_submit (SV *cb)
2054 CODE:
2055 SvREFCNT_dec (on_next_submit);
2056 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2057
1224PROTOTYPES: DISABLE 2058PROTOTYPES: DISABLE
1225 2059
2060MODULE = IO::AIO PACKAGE = IO::AIO::WD
2061
2062BOOT:
2063{
2064 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2065 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2066}
2067
2068void
2069DESTROY (SV *self)
2070 CODE:
2071{
2072 aio_wd wd = SvAIO_WD (self);
2073#if HAVE_AT
2074 {
2075 SV *callback = &PL_sv_undef;
2076 dREQ; /* clobbers next_pri :/ */
2077 next_pri = req->pri; /* restore next_pri */
2078 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2079 req->type = EIO_WD_CLOSE;
2080 req->wd = wd;
2081 REQ_SEND;
2082 }
2083#else
2084 eio_wd_close_sync (wd);
2085#endif
2086}
2087
1226MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2088MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1227 2089
1228void 2090void
1229cancel (aio_req_ornot req) 2091cancel (aio_req_ornot req)
1230 PROTOTYPE:
1231 CODE: 2092 CODE:
1232 req_cancel (req); 2093 eio_cancel (req);
2094
2095void
2096cb (aio_req_ornot req, SV *callback = NO_INIT)
2097 PPCODE:
2098{
2099 if (GIMME_V != G_VOID)
2100 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2101
2102 if (items > 1)
2103 {
2104 SV *cb_cv = get_cb (callback);
2105
2106 SvREFCNT_dec (req->callback);
2107 req->callback = SvREFCNT_inc (cb_cv);
2108 }
2109}
1233 2110
1234MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2111MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1235 2112
1236void 2113void
1237add (aio_req grp, ...) 2114add (aio_req grp, ...)
1238 PPCODE: 2115 PPCODE:
1239{ 2116{
1240 int i; 2117 int i;
1241 2118
2119 if (grp->int1 == 2)
2120 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2121
1242 for (i = 1; i < items; ++i ) 2122 for (i = 1; i < items; ++i )
1243 { 2123 {
2124 aio_req req;
2125
1244 if (GIMME_V != G_VOID) 2126 if (GIMME_V != G_VOID)
1245 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2127 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1246 2128
1247 aio_req req = SvAIO_REQ (ST (i)); 2129 req = SvAIO_REQ (ST (i));
1248 2130
1249 if (req) 2131 if (req)
1250 { 2132 eio_grp_add (grp, req);
1251 req->grp_prev = grp;
1252 req->grp_next = grp->grp_next;
1253 grp->grp_next->grp_prev = req;
1254 grp->grp_next = req;
1255
1256 req->grp = grp;
1257 }
1258 } 2133 }
1259} 2134}
1260 2135
1261void 2136void
2137cancel_subs (aio_req_ornot req)
2138 CODE:
2139 req_cancel_subs (req);
2140
2141void
1262result (aio_req grp, ...) 2142result (aio_req grp, ...)
2143 CODE:
2144{
2145 int i;
2146 AV *av;
2147
2148 grp->errorno = errno;
2149
2150 av = newAV ();
2151 av_extend (av, items - 1);
2152
2153 for (i = 1; i < items; ++i )
2154 av_push (av, newSVsv (ST (i)));
2155
2156 SvREFCNT_dec (grp->sv1);
2157 grp->sv1 = (SV *)av;
2158}
2159
2160void
2161errno (aio_req grp, int errorno = errno)
2162 CODE:
2163 grp->errorno = errorno;
2164
2165void
2166limit (aio_req grp, int limit)
1263 CODE: 2167 CODE:
1264{ 2168 eio_grp_limit (grp, limit);
1265 int i;
1266 AV *av = newAV ();
1267 2169
1268 if (grp->data) 2170void
2171feed (aio_req grp, SV *callback = &PL_sv_undef)
2172 CODE:
2173{
1269 SvREFCNT_dec (grp->data); 2174 SvREFCNT_dec (grp->sv2);
2175 grp->sv2 = newSVsv (callback);
2176 grp->feed = aio_grp_feed;
1270 2177
1271 for (i = 1; i < items; ++i ) 2178 if (grp->int2 <= 0)
1272 av_push (av, newSVsv (ST (i))); 2179 grp->int2 = 2;
1273 2180
1274 grp->data = (SV *)av; 2181 eio_grp_limit (grp, grp->int2);
1275} 2182}
1276 2183

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