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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.47 by root, Sun Oct 22 10:10:23 2006 UTC vs.
Revision 1.234 by root, Thu Jun 25 15:20:11 2015 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. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79
80 #define EIO_STRUCT_STAT struct _stati64
81 #define EIO_STRUCT_STATI64
82
83#else
84
31# include <sys/socket.h> 85 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 86 #include <sys/select.h>
87 #include <unistd.h>
88 #include <utime.h>
89 #include <signal.h>
90
91 #define EIO_STRUCT_STAT Stat_t
92
93#endif
94
95/*****************************************************************************/
96
97#if __GNUC__ >= 3
98# define expect(expr,value) __builtin_expect ((expr),(value))
99#else
100# define expect(expr,value) (expr)
101#endif
102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
34# else 144# else
35# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 146# endif
37#endif 147#endif
38 148
39/* used for struct dirent, AIX doesn't provide it */ 149/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 150#include "def0.h"
41# define NAME_MAX 4096
42#endif
43 151
44#if __ia64 152#ifndef makedev
45# define STACKSIZE 65536 153# define makedev(maj,min) (((maj) << 8) | (min))
46#else
47# define STACKSIZE 8192
48#endif 154#endif
155#ifndef major
156# define major(dev) ((dev) >> 8)
157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
49 161
50enum { 162#if PAGESIZE <= 0
51 REQ_QUIT, 163# define PAGESIZE sysconf (_SC_PAGESIZE)
52 REQ_OPEN, REQ_CLOSE, 164#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};
63 165
64#define AIO_REQ_KLASS "IO::AIO::REQ" 166/*****************************************************************************/
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66 167
67typedef struct aio_cb 168static void
169fiemap (eio_req *req)
68{ 170{
69 struct aio_cb *grp, *grp_prev, *grp_next; 171 req->result = -1;
70 172
71 struct aio_cb *volatile next; 173#if HAVE_FIEMAP
174 /* assume some c99 */
175 struct fiemap *fiemap = 0;
176 size_t end_offset;
177 int count = req->int3;
72 178
73 SV *self; /* the perl counterpart of this request, if any */ 179 req->flags |= EIO_FLAG_PTR1_FREE;
74 180
75 SV *data, *callback; 181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
76 SV *fh, *fh2; 182 /* increase in 3.5kb steps */
77 void *dataptr, *data2ptr; 183 if (count < 0)
78 Stat_t *statdata; 184 count = 8;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82 185
83 int type; 186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
84 int fd, fd2; 187 errno = ENOMEM;
85 int errorno; 188 if (!fiemap)
86 STRLEN dataoffset; 189 return;
87 mode_t mode; /* open */
88 unsigned char cancelled;
89} aio_cb;
90 190
91typedef aio_cb *aio_req; 191 req->ptr1 = fiemap;
92typedef aio_cb *aio_req_ornot;
93 192
94static int started, wanted; 193 fiemap->fm_start = req->offs;
95static volatile int nreqs; 194 fiemap->fm_length = req->size;
96static int max_outstanding = 1<<30; 195 fiemap->fm_flags = req->int2;
97static int respipe [2]; 196 fiemap->fm_extent_count = count;
98 197
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; 199 return;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 200
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 201 if (req->int3 >= 0 /* not autosizing */
104static volatile aio_req ress, rese; /* queue start, queue end */ 202 || !fiemap->fm_mapped_extents /* no more extents */
203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
204 goto done;
105 205
106static void req_free (aio_req req); 206 /* else we have to loop -
207 * it would be tempting (actually I tried that first) to just query the
208 * number of extents needed, but linux often feels like not returning all
209 * extents, without telling us it left any out. this complicates
210 * this quite a bit.
211 */
107 212
108/* must be called at most once */ 213 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);
113 214
114 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 215 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 { 216 {
131 fd_set rfd; 217 /* 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); 218 char scratch[3072];
133 FD_SET(respipe [0], &rfd); 219 struct fiemap *incmap = (struct fiemap *)scratch;
134 220
135 select (respipe [0] + 1, &rfd, 0, 0, 0); 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
136 } 222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
137} 223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
224 incmap->fm_flags = fiemap->fm_flags;
225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
138 226
139static void req_invoke (aio_req req) 227 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; 228 return;
146 229
147 errno = req->errorno; 230 if (!incmap->fm_mapped_extents)
231 goto done;
148 232
149 ENTER; 233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
150 PUSHMARK (SP); 234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
235 errno = ENOMEM;
236 if (!fiemap)
237 return;
151 238
152 switch (req->type) 239 req->ptr1 = fiemap;
153 { 240
154 case REQ_READDIR: 241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
155 { 242 {
156 SV *rv = &PL_sv_undef; 243 struct fiemap_extent *e = incmap->fm_extents + count;
157 244
158 if (req->result >= 0) 245 if (e->fe_logical + e->fe_length >= end_offset)
159 { 246 goto done;
160 char *buf = req->data2ptr;
161 AV *av = newAV ();
162 247
163 while (req->result) 248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
164 {
165 SV *sv = newSVpv (buf, 0);
166 249
167 av_push (av, sv); 250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
168 buf += SvCUR (sv) + 1; 251 goto done;
169 req->result--;
170 }
171 252
172 rv = sv_2mortal (newRV_noinc ((SV *)av));
173 }
174
175 XPUSHs (rv);
176 }
177 break;
178
179 case REQ_OPEN:
180 {
181 /* convert fd to fh */
182 SV *fh;
183
184 XPUSHs (sv_2mortal (newSViv (req->result)));
185 PUTBACK;
186 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
187 SPAGAIN;
188
189 fh = SvREFCNT_inc (POPs);
190
191 PUSHMARK (SP);
192 XPUSHs (sv_2mortal (fh));
193 }
194 break;
195
196 case REQ_SLEEP:
197 case REQ_GROUP:
198 break;
199
200 default:
201 XPUSHs (sv_2mortal (newSViv (req->result)));
202 break;
203 }
204
205
206 PUTBACK;
207 call_sv (req->callback, G_VOID | G_EVAL);
208 SPAGAIN;
209
210 if (SvTRUE (ERRSV))
211 {
212 req_free (req);
213 croak (0);
214 }
215
216 LEAVE;
217
218 errno = errorno;
219}
220
221static void req_free (aio_req req)
222{
223 if (req->grp)
224 {
225 aio_req grp = req->grp;
226
227 /* unlink request */
228 req->grp_next->grp_prev = req->grp_prev;
229 req->grp_prev->grp_next = req->grp_next;
230
231 if (grp->grp_next == grp && grp->fd)
232 {
233 req_invoke (grp);
234 req_free (grp);
235 } 253 }
236 } 254 }
237 255
256done:
257 req->result = 0;
258
259#else
260 errno = ENOSYS;
261#endif
262}
263
264/*****************************************************************************/
265
266enum {
267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268};
269
270typedef eio_req *aio_req;
271typedef eio_req *aio_req_ornot;
272typedef eio_wd aio_wd;
273
274static SV *on_next_submit;
275static int next_pri = EIO_PRI_DEFAULT;
276static int max_outstanding;
277
278static s_epipe respipe;
279
280static void req_destroy (aio_req req);
281static void req_cancel (aio_req req);
282
283static void
284want_poll (void)
285{
286 /* write a dummy byte to the pipe so fh becomes ready */
287 s_epipe_signal (&respipe);
288}
289
290static void
291done_poll (void)
292{
293 /* read any signals sent by the worker threads */
294 s_epipe_drain (&respipe);
295}
296
297/* must be called at most once */
298static SV *
299req_sv (aio_req req, HV *stash)
300{
301 if (!req->self)
302 {
303 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 }
306
307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308}
309
310static SV *
311newSVaio_wd (aio_wd wd)
312{
313 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314}
315
316static aio_req
317SvAIO_REQ (SV *sv)
318{
319 MAGIC *mg;
320
321 if (!SvROK (sv)
322 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
323 || (SvSTASH (SvRV (sv)) != aio_grp_stash
324 && SvSTASH (SvRV (sv)) != aio_req_stash
325 && !sv_derived_from (sv, "IO::AIO::REQ")))
326 croak ("object of class IO::AIO::REQ expected");
327
328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
329
330 return mg ? (aio_req)mg->mg_ptr : 0;
331}
332
333static aio_wd
334SvAIO_WD (SV *sv)
335{
336 if (!SvROK (sv)
337 || SvTYPE (SvRV (sv)) != SVt_PVMG
338 || SvSTASH (SvRV (sv)) != aio_wd_stash)
339 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340
341 return (aio_wd)(long)SvIVX (SvRV (sv));
342}
343
344static SV *
345newmortalFH (int fd, int flags)
346{
347 if (fd < 0)
348 return &PL_sv_undef;
349
350 GV *gv = (GV *)sv_newmortal ();
351 char sym[64];
352 int symlen;
353
354 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
355 gv_init (gv, aio_stash, sym, symlen, 0);
356
357 symlen = snprintf (
358 sym,
359 sizeof (sym),
360 "%s&=%d",
361 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
362 fd
363 );
364
365 return do_open (gv, sym, symlen, 0, 0, 0, 0)
366 ? (SV *)gv : &PL_sv_undef;
367}
368
369static void
370aio_grp_feed (aio_req grp)
371{
372 if (grp->sv2 && SvOK (grp->sv2))
373 {
374 dSP;
375
376 ENTER;
377 SAVETMPS;
378 PUSHMARK (SP);
379 XPUSHs (req_sv (grp, aio_grp_stash));
380 PUTBACK;
381 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
382 SPAGAIN;
383 FREETMPS;
384 LEAVE;
385 }
386}
387
388static void
389req_submit (eio_req *req)
390{
391 eio_submit (req);
392
393 if (expect_false (on_next_submit))
394 {
395 dSP;
396 SV *cb = sv_2mortal (on_next_submit);
397
398 on_next_submit = 0;
399
400 PUSHMARK (SP);
401 PUTBACK;
402 call_sv (cb, G_DISCARD | G_EVAL);
403 }
404}
405
406static int
407req_invoke (eio_req *req)
408{
409 if (req->flags & FLAG_SV2_RO_OFF)
410 SvREADONLY_off (req->sv2);
411
412 if (!EIO_CANCELLED (req) && req->callback)
413 {
414 dSP;
415 static SV *sv_result_cache; /* caches the result integer SV */
416 SV *sv_result;
417
418 ENTER;
419 SAVETMPS;
420 PUSHMARK (SP);
421 EXTEND (SP, 1);
422
423 /* do not recreate the result IV from scratch each time */
424 if (expect_true (sv_result_cache))
425 {
426 sv_result = sv_result_cache; sv_result_cache = 0;
427 SvIV_set (sv_result, req->result);
428 SvIOK_only (sv_result);
429 }
430 else
431 {
432 sv_result = newSViv (req->result);
433 SvREADONLY_on (sv_result);
434 }
435
436 switch (req->type)
437 {
438 case EIO_WD_OPEN:
439 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
440 break;
441
442 case EIO_READDIR:
443 {
444 SV *rv = &PL_sv_undef;
445
446 if (req->result >= 0)
447 {
448 int i;
449 char *names = (char *)req->ptr2;
450 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
451 AV *av = newAV ();
452
453 av_extend (av, req->result - 1);
454
455 for (i = 0; i < req->result; ++i)
456 {
457 if (req->int1 & EIO_READDIR_DENTS)
458 {
459 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
460
461 if (req->int1 & EIO_READDIR_CUSTOM2)
462 {
463 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
464 AV *avent = newAV ();
465
466 av_extend (avent, 2);
467
468 if (!sv_type [ent->type])
469 {
470 sv_type [ent->type] = newSViv (ent->type);
471 SvREADONLY_on (sv_type [ent->type]);
472 }
473
474 av_store (avent, 0, namesv);
475 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
476 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
477
478 av_store (av, i, newRV_noinc ((SV *)avent));
479 }
480 else
481 av_store (av, i, namesv);
482
483 ++ent;
484 }
485 else
486 {
487 SV *name = newSVpv (names, 0);
488 av_store (av, i, name);
489 names += SvCUR (name) + 1;
490 }
491 }
492
493 rv = sv_2mortal (newRV_noinc ((SV *)av));
494 }
495
496 PUSHs (rv);
497
498 if (req->int1 & EIO_READDIR_CUSTOM1)
499 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 }
501 break;
502
503 case EIO_OPEN:
504 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
505 break;
506
507 case EIO_STATVFS:
508 case EIO_FSTATVFS:
509 {
510 SV *rv = &PL_sv_undef;
511
512#ifndef _WIN32
513 if (req->result >= 0)
514 {
515 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
516 HV *hv = newHV ();
517 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
518 * chooses to make it a struct.
519 */
520 unsigned long fsid = 0;
521 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
522
523 rv = sv_2mortal (newRV_noinc ((SV *)hv));
524
525 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
526 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
527 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
528 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
529 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
530 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
531 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
532 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
533 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
534 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
535 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
536 }
537#endif
538
539 PUSHs (rv);
540 }
541
542 break;
543
544 case EIO_GROUP:
545 req->int1 = 2; /* mark group as finished */
546
547 if (req->sv1)
548 {
549 int i;
550 AV *av = (AV *)req->sv1;
551
552 EXTEND (SP, AvFILL (av) + 1);
553 for (i = 0; i <= AvFILL (av); ++i)
554 PUSHs (*av_fetch (av, i, 0));
555 }
556 break;
557
558 case EIO_NOP:
559 case EIO_BUSY:
560 break;
561
562 case EIO_READLINK:
563 case EIO_REALPATH:
564 if (req->result > 0)
565 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
566 break;
567
568 case EIO_STAT:
569 case EIO_LSTAT:
570 case EIO_FSTAT:
571 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
572
573 if (!(PL_laststatval = req->result))
574 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
575 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
576
577 PUSHs (sv_result);
578 break;
579
580 case EIO_SEEK:
581 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
582 break;
583
584 case EIO_READ:
585 {
586 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
587 *SvEND (req->sv2) = 0;
588 SvPOK_only (req->sv2);
589 SvSETMAGIC (req->sv2);
590 PUSHs (sv_result);
591 }
592 break;
593
594 case EIO_CUSTOM:
595 if (req->feed == fiemap)
596 {
597#if HAVE_FIEMAP
598 if (!req->result)
599 {
600 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
601
602 if (fiemap->fm_extent_count)
603 {
604 AV *av = newAV ();
605 int i;
606
607 while (fiemap->fm_mapped_extents)
608 {
609 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
610 AV *ext_av = newAV ();
611
612 av_store (ext_av, 3, newSVuv (extent->fe_flags));
613 av_store (ext_av, 2, newSVval64 (extent->fe_length));
614 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
615 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
616
617 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
618 }
619
620 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
621 }
622 else
623 {
624 SvIV_set (sv_result, fiemap->fm_mapped_extents);
625 PUSHs (sv_result);
626 }
627 }
628#endif
629 }
630 else
631 PUSHs (sv_result);
632 break;
633
634 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
635 if (req->result > 0)
636 SvIV_set (sv_result, 0);
637 /* FALLTHROUGH */
638
639 default:
640 PUSHs (sv_result);
641 break;
642 }
643
644 errno = req->errorno;
645
646 PUTBACK;
647 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
648 SPAGAIN;
649
650 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
651 SvREFCNT_dec (sv_result);
652 else
653 sv_result_cache = sv_result;
654
655 FREETMPS;
656 LEAVE;
657
658 PUTBACK;
659 }
660
661 return !!SvTRUE (ERRSV);
662}
663
664static void
665req_destroy (aio_req req)
666{
238 if (req->self) 667 if (req->self)
239 { 668 {
240 sv_unmagic (req->self, PERL_MAGIC_ext); 669 sv_unmagic (req->self, PERL_MAGIC_ext);
241 SvREFCNT_dec (req->self); 670 SvREFCNT_dec (req->self);
242 } 671 }
243 672
244 if (req->data)
245 SvREFCNT_dec (req->data);
246
247 if (req->fh)
248 SvREFCNT_dec (req->fh); 673 SvREFCNT_dec (req->sv1);
249
250 if (req->fh2)
251 SvREFCNT_dec (req->fh2); 674 SvREFCNT_dec (req->sv2);
252 675 SvREFCNT_dec (req->sv3);
253 if (req->statdata) 676 SvREFCNT_dec (req->sv4);
254 Safefree (req->statdata);
255
256 if (req->callback)
257 SvREFCNT_dec (req->callback); 677 SvREFCNT_dec (req->callback);
258 678
259 if (req->type == REQ_READDIR && req->result >= 0)
260 free (req->data2ptr);
261
262 Safefree (req); 679 free (req);
263} 680}
264 681
265static void req_cancel (aio_req req) 682static void
683req_cancel_subs (aio_req grp)
266{ 684{
267 req->cancelled = 1;
268
269 if (req->type == REQ_GROUP) 685 if (grp->type != EIO_GROUP)
686 return;
687
688 SvREFCNT_dec (grp->sv2);
689 grp->sv2 = 0;
690
691 eio_grp_cancel (grp);
692}
693
694static void ecb_cold
695create_respipe (void)
696{
697 if (s_epipe_renew (&respipe))
698 croak ("IO::AIO: unable to initialize result pipe");
699}
700
701static void
702poll_wait (void)
703{
704 while (eio_nreqs ())
270 { 705 {
271 aio_req sub; 706 int size;
272 707
273 for (sub = req->grp_next; sub != req; sub = sub->grp_next) 708 X_LOCK (reslock);
274 req_cancel (sub); 709 size = res_queue.size;
710 X_UNLOCK (reslock);
711
712 if (size)
713 return;
714
715 etp_maybe_start_thread ();
716
717 s_epipe_wait (&respipe);
275 } 718 }
276} 719}
277 720
278static int poll_cb () 721static int
722poll_cb (void)
279{ 723{
280 dSP;
281 int count = 0;
282 int do_croak = 0;
283 aio_req req;
284
285 for (;;) 724 for (;;)
286 { 725 {
287 pthread_mutex_lock (&reslock); 726 int res = eio_poll ();
288 req = ress;
289 727
290 if (req) 728 if (res > 0)
729 croak (0);
730
731 if (!max_outstanding || max_outstanding > eio_nreqs ())
732 return res;
733
734 poll_wait ();
735 }
736}
737
738static void ecb_cold
739reinit (void)
740{
741 create_respipe ();
742
743 if (eio_init (want_poll, done_poll) < 0)
744 croak ("IO::AIO: unable to initialise eio library");
745}
746
747/*****************************************************************************/
748
749#if !_POSIX_MAPPED_FILES
750# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
751# define munmap(addr,length) EIO_ENOSYS ()
752#endif
753
754#if !_POSIX_MEMORY_PROTECTION
755# define mprotect(addr,len,prot) EIO_ENOSYS ()
756# define PROT_NONE 0
757# define PROT_WRITE 0
758# define MAP_PRIVATE 0
759# define MAP_SHARED 0
760# define MAP_FIXED 0
761#endif
762
763#define MMAP_MAGIC PERL_MAGIC_ext
764
765static int ecb_cold
766mmap_free (pTHX_ SV *sv, MAGIC *mg)
767{
768 int old_errno = errno;
769 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
770 errno = old_errno;
771
772 mg->mg_obj = 0; /* just in case */
773
774 SvREADONLY_off (sv);
775
776 if (SvPVX (sv) != mg->mg_ptr)
777 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
778
779 SvCUR_set (sv, 0);
780 SvPVX (sv) = 0;
781 SvOK_off (sv);
782
783 return 0;
784}
785
786static MGVTBL mmap_vtbl = {
787 0, 0, 0, 0, mmap_free
788};
789
790/*****************************************************************************/
791
792static SV *
793get_cb (SV *cb_sv)
794{
795 SvGETMAGIC (cb_sv);
796 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797}
798
799static aio_req ecb_noinline
800dreq (SV *callback)
801{
802 SV *cb_cv;
803 aio_req req;
804 int req_pri = next_pri;
805 next_pri = EIO_PRI_DEFAULT;
806
807 cb_cv = get_cb (callback);
808
809 req = calloc (sizeof (*req), 1);
810 if (!req)
811 croak ("out of memory during eio_req allocation");
812
813 req->callback = SvREFCNT_inc (cb_cv);
814 req->pri = req_pri;
815
816 return req;
817}
818
819#define dREQ \
820 aio_req req = dreq (callback); \
821
822#define REQ_SEND \
823 PUTBACK; \
824 req_submit (req); \
825 SPAGAIN; \
826 \
827 if (GIMME_V != G_VOID) \
828 XPUSHs (req_sv (req, aio_req_stash));
829
830ecb_inline void
831req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
832{
833 if (expect_false (SvROK (path)))
834 {
835 SV *rv = SvRV (path);
836 SV *wdob;
837
838 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
291 { 839 {
292 ress = req->next; 840 path = AvARRAY (rv)[1];
841 wdob = AvARRAY (rv)[0];
293 842
294 if (!ress) 843 if (SvOK (wdob))
295 { 844 {
296 /* read any signals sent by the worker threads */ 845 *wd = SvAIO_WD (wdob);
297 char buf [32]; 846 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
298 while (read (respipe [0], buf, 32) == 32)
299 ;
300
301 rese = 0;
302 } 847 }
848 else
849 *wd = EIO_INVALID_WD;
303 } 850 }
304 851 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
305 pthread_mutex_unlock (&reslock);
306
307 if (!req)
308 break;
309
310 nreqs--;
311
312 if (req->type == REQ_QUIT)
313 started--;
314 else if (req->type == REQ_GROUP && req->grp_next != req)
315 { 852 {
316 req->fd = 1; /* mark request as delayed */ 853 *wd = (aio_wd)(long)SvIVX (rv);
317 continue; 854 *wdsv = SvREFCNT_inc_NN (rv);
855 *ptr = ".";
856 return; /* path set to "." */
318 } 857 }
319 else 858 else
320 { 859 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
321 if (req->type == REQ_READ)
322 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
323
324 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
325 SvREADONLY_off (req->data);
326
327 if (req->statdata)
328 {
329 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
330 PL_laststatval = req->result;
331 PL_statcache = *(req->statdata);
332 }
333
334 req_invoke (req);
335
336 count++;
337 }
338
339 req_free (req);
340 } 860 }
341 861
342 return count; 862 *pathsv = newSVsv (path);
863 *ptr = SvPVbyte_nolen (*pathsv);
343} 864}
344 865
345static void *aio_proc(void *arg); 866static void ecb_noinline
346 867req_set_path1 (aio_req req, SV *path)
347static void start_thread (void)
348{ 868{
349 sigset_t fullsigset, oldsigset; 869 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
350 pthread_t tid;
351 pthread_attr_t attr;
352
353 pthread_attr_init (&attr);
354 pthread_attr_setstacksize (&attr, STACKSIZE);
355 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
356
357 sigfillset (&fullsigset);
358 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
359
360 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
361 started++;
362
363 sigprocmask (SIG_SETMASK, &oldsigset, 0);
364} 870}
365 871
366static void req_send (aio_req req) 872static void ecb_noinline
873req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
367{ 874{
368 while (started < wanted && nreqs >= started) 875 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
369 start_thread ();
370 876
371 nreqs++; 877 switch (SvTYPE (rv))
372
373 pthread_mutex_lock (&reqlock);
374
375 req->next = 0;
376
377 if (reqe)
378 { 878 {
379 reqe->next = req; 879 case SVt_PVIO:
380 reqe = req; 880 case SVt_PVLV:
881 case SVt_PVGV:
882 req->type = type_fh;
883 req->sv1 = newSVsv (fh_or_path);
884 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
885 break;
886
887 default:
888 req->type = type_path;
889 req_set_path1 (req, fh_or_path);
890 break;
381 } 891 }
382 else
383 reqe = reqs = req;
384
385 pthread_cond_signal (&reqwait);
386 pthread_mutex_unlock (&reqlock);
387
388 if (nreqs > max_outstanding)
389 for (;;)
390 {
391 poll_cb ();
392
393 if (nreqs <= max_outstanding)
394 break;
395
396 poll_wait ();
397 }
398} 892}
399 893
400static void end_thread (void) 894XS(boot_IO__AIO) ecb_cold;
401{
402 aio_req req;
403 Newz (0, req, 1, aio_cb);
404 req->type = REQ_QUIT;
405 895
406 req_send (req); 896MODULE = IO::AIO PACKAGE = IO::AIO
407}
408 897
409static void min_parallel (int nthreads) 898PROTOTYPES: ENABLE
410{
411 if (wanted < nthreads)
412 wanted = nthreads;
413}
414 899
415static void max_parallel (int nthreads) 900BOOT:
416{ 901{
417 int cur = started; 902 static const struct {
903 const char *name;
904 IV iv;
905 } *civ, const_iv[] = {
906# define const_niv(name, value) { # name, (IV) value },
907# define const_iv(name) { # name, (IV) name },
908# define const_eio(name) { # name, (IV) EIO_ ## name },
418 909
419 if (wanted > nthreads) 910 /* you have to re-run ./gendef0 after adding/Removing any constants here */
420 wanted = nthreads;
421 911
422 while (cur > wanted) 912 const_iv (ENOSYS)
423 { 913 const_iv (EXDEV)
424 end_thread (); 914 const_iv (EBADR)
425 cur--;
426 }
427 915
428 while (started > wanted) 916 const_iv (O_RDONLY)
429 { 917 const_iv (O_WRONLY)
430 poll_wait (); 918 const_iv (O_RDWR)
431 poll_cb (); 919 const_iv (O_CREAT)
432 } 920 const_iv (O_TRUNC)
433} 921 const_iv (O_EXCL)
922 const_iv (O_APPEND)
434 923
435static void create_pipe () 924 const_iv (O_ASYNC)
436{ 925 const_iv (O_DIRECT)
437 if (pipe (respipe)) 926 const_iv (O_NOATIME)
438 croak ("unable to initialize result pipe");
439 927
440 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 928 const_iv (O_CLOEXEC)
441 croak ("cannot set result pipe to nonblocking mode"); 929 const_iv (O_NOCTTY)
930 const_iv (O_NOFOLLOW)
931 const_iv (O_NONBLOCK)
932 const_iv (O_EXEC)
933 const_iv (O_SEARCH)
934 const_iv (O_DIRECTORY)
935 const_iv (O_DSYNC)
936 const_iv (O_RSYNC)
937 const_iv (O_SYNC)
938 const_iv (O_PATH)
939 const_iv (O_TMPFILE)
940 const_iv (O_TTY_INIT)
442 941
443 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 942 const_iv (S_IFIFO)
444 croak ("cannot set result pipe to nonblocking mode"); 943 const_iv (S_IFCHR)
445} 944 const_iv (S_IFBLK)
945 const_iv (S_IFLNK)
946 const_iv (S_IFREG)
947 const_iv (S_IFDIR)
948 const_iv (S_IFWHT)
949 const_iv (S_IFSOCK)
950 const_iv (S_IFMT)
446 951
447/*****************************************************************************/ 952 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
448/* work around various missing functions */ 953 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
449 958
450#if !HAVE_PREADWRITE 959 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
451# define pread aio_pread 960 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
452# define pwrite aio_pwrite 961 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
453 964
454/* 965 const_iv (ST_RDONLY)
455 * make our pread/pwrite safe against themselves, but not against 966 const_iv (ST_NOSUID)
456 * normal read/write by using a mutex. slows down execution a lot, 967 const_iv (ST_NODEV)
457 * but that's your problem, not mine. 968 const_iv (ST_NOEXEC)
458 */ 969 const_iv (ST_SYNCHRONOUS)
459static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 970 const_iv (ST_MANDLOCK)
971 const_iv (ST_WRITE)
972 const_iv (ST_APPEND)
973 const_iv (ST_IMMUTABLE)
974 const_iv (ST_NOATIME)
975 const_iv (ST_NODIRATIME)
976 const_iv (ST_RELATIME)
460 977
461static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 978 const_iv (PROT_NONE)
462{ 979 const_iv (PROT_EXEC)
463 ssize_t res; 980 const_iv (PROT_READ)
464 off_t ooffset; 981 const_iv (PROT_WRITE)
465 982
466 pthread_mutex_lock (&preadwritelock); 983 /*const_iv (MAP_FIXED)*/
467 ooffset = lseek (fd, 0, SEEK_CUR); 984 const_iv (MAP_PRIVATE)
468 lseek (fd, offset, SEEK_SET); 985 const_iv (MAP_SHARED)
469 res = read (fd, buf, count); 986 const_iv (MAP_ANONYMOUS)
470 lseek (fd, ooffset, SEEK_SET);
471 pthread_mutex_unlock (&preadwritelock);
472 987
473 return res; 988 /* linuxish */
474} 989 const_iv (MAP_HUGETLB)
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
475 994
476static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 995 const_iv (FIEMAP_FLAG_SYNC)
477{ 996 const_iv (FIEMAP_FLAG_XATTR)
478 ssize_t res; 997 const_iv (FIEMAP_FLAGS_COMPAT)
479 off_t ooffset; 998 const_iv (FIEMAP_EXTENT_LAST)
999 const_iv (FIEMAP_EXTENT_UNKNOWN)
1000 const_iv (FIEMAP_EXTENT_DELALLOC)
1001 const_iv (FIEMAP_EXTENT_ENCODED)
1002 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1003 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1004 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1005 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1006 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1007 const_iv (FIEMAP_EXTENT_MERGED)
1008 const_iv (FIEMAP_EXTENT_SHARED)
480 1009
481 pthread_mutex_lock (&preadwritelock); 1010 const_iv (SPLICE_F_MOVE)
482 ooffset = lseek (fd, 0, SEEK_CUR); 1011 const_iv (SPLICE_F_NONBLOCK)
483 lseek (fd, offset, SEEK_SET); 1012 const_iv (SPLICE_F_MORE)
484 res = write (fd, buf, count); 1013 const_iv (SPLICE_F_GIFT)
485 lseek (fd, offset, SEEK_SET);
486 pthread_mutex_unlock (&preadwritelock);
487 1014
488 return res; 1015 const_iv (SEEK_DATA)
489} 1016 const_iv (SEEK_HOLE)
490#endif
491 1017
492#if !HAVE_FDATASYNC 1018 /* libeio constants */
493# define fdatasync fsync 1019 const_eio (SEEK_SET)
494#endif 1020 const_eio (SEEK_CUR)
1021 const_eio (SEEK_END)
495 1022
496#if !HAVE_READAHEAD 1023 const_eio (MCL_FUTURE)
497# define readahead aio_readahead 1024 const_eio (MCL_CURRENT)
498 1025
499static ssize_t readahead (int fd, off_t offset, size_t count) 1026 const_eio (MS_ASYNC)
500{ 1027 const_eio (MS_INVALIDATE)
501 char readahead_buf[4096]; 1028 const_eio (MS_SYNC)
502 1029
503 while (count > 0) 1030 const_eio (MT_MODIFY)
504 {
505 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
506 1031
507 pread (fd, readahead_buf, len, offset); 1032 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
508 offset += len; 1033 const_eio (SYNC_FILE_RANGE_WRITE)
509 count -= len; 1034 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
510 }
511 1035
512 errno = 0; 1036 const_eio (FALLOC_FL_KEEP_SIZE)
513} 1037 const_eio (FALLOC_FL_PUNCH_HOLE)
514#endif 1038 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039 const_eio (FALLOC_FL_ZERO_RANGE)
515 1040
516#if !HAVE_READDIR_R 1041 const_eio (READDIR_DENTS)
517# define readdir_r aio_readdir_r 1042 const_eio (READDIR_DIRS_FIRST)
1043 const_eio (READDIR_STAT_ORDER)
1044 const_eio (READDIR_FOUND_UNKNOWN)
518 1045
519static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1046 const_eio (DT_UNKNOWN)
520 1047 const_eio (DT_FIFO)
521static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1048 const_eio (DT_CHR)
522{ 1049 const_eio (DT_DIR)
523 struct dirent *e; 1050 const_eio (DT_BLK)
524 int errorno; 1051 const_eio (DT_REG)
525 1052 const_eio (DT_LNK)
526 pthread_mutex_lock (&readdirlock); 1053 const_eio (DT_SOCK)
527 1054 const_eio (DT_WHT)
528 e = readdir (dirp);
529 errorno = errno;
530
531 if (e)
532 {
533 *res = ent;
534 strcpy (ent->d_name, e->d_name);
535 }
536 else
537 *res = 0;
538
539 pthread_mutex_unlock (&readdirlock);
540
541 errno = errorno;
542 return e ? 0 : -1;
543}
544#endif
545
546/* sendfile always needs emulation */
547static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
548{
549 ssize_t res;
550
551 if (!count)
552 return 0;
553
554#if HAVE_SENDFILE
555# if __linux
556 res = sendfile (ofd, ifd, &offset, count);
557
558# elif __freebsd
559 /*
560 * Of course, the freebsd sendfile is a dire hack with no thoughts
561 * wasted on making it similar to other I/O functions.
562 */
563 {
564 off_t sbytes;
565 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
566
567 if (res < 0 && sbytes)
568 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
569 res = sbytes;
570 } 1055 };
571 1056
572# elif __hpux 1057 aio_stash = gv_stashpv ("IO::AIO" , 1);
573 res = sendfile (ofd, ifd, offset, count, 0, 0); 1058 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1059 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1060 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
574 1061
575# elif __solaris 1062 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
576 { 1063 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
577 struct sendfilevec vec;
578 size_t sbytes;
579 1064
580 vec.sfv_fd = ifd; 1065 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
581 vec.sfv_flag = 0;
582 vec.sfv_off = offset;
583 vec.sfv_len = count;
584 1066
585 res = sendfilev (ofd, &vec, 1, &sbytes); 1067 reinit ();
1068}
586 1069
587 if (res < 0 && sbytes) 1070void
1071reinit ()
1072 PROTOTYPE:
1073
1074void
1075max_poll_reqs (unsigned int nreqs)
1076 PROTOTYPE: $
1077 CODE:
1078 eio_set_max_poll_reqs (nreqs);
1079
1080void
1081max_poll_time (double nseconds)
1082 PROTOTYPE: $
1083 CODE:
1084 eio_set_max_poll_time (nseconds);
1085
1086void
1087min_parallel (unsigned int nthreads)
1088 PROTOTYPE: $
1089 CODE:
1090 eio_set_min_parallel (nthreads);
1091
1092void
1093max_parallel (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_parallel (nthreads);
1097
1098void
1099max_idle (unsigned int nthreads)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_max_idle (nthreads);
1103
1104void
1105idle_timeout (unsigned int seconds)
1106 PROTOTYPE: $
1107 CODE:
1108 eio_set_idle_timeout (seconds);
1109
1110void
1111max_outstanding (unsigned int maxreqs)
1112 PROTOTYPE: $
1113 CODE:
1114 max_outstanding = maxreqs;
1115
1116void
1117aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1118 PPCODE:
1119{
1120 dREQ;
1121
1122 req->type = EIO_WD_OPEN;
1123 req_set_path1 (req, pathname);
1124
1125 REQ_SEND;
1126}
1127
1128void
1129aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1130 PPCODE:
1131{
1132 dREQ;
1133
1134 req->type = EIO_OPEN;
1135 req_set_path1 (req, pathname);
1136 req->int1 = flags;
1137 req->int2 = mode;
1138
1139 REQ_SEND;
1140}
1141
1142void
1143aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1144 ALIAS:
1145 aio_fsync = EIO_FSYNC
1146 aio_fdatasync = EIO_FDATASYNC
1147 aio_syncfs = EIO_SYNCFS
1148 PPCODE:
1149{
1150 int fd = s_fileno_croak (fh, 0);
1151 dREQ;
1152
1153 req->type = ix;
1154 req->sv1 = newSVsv (fh);
1155 req->int1 = fd;
1156
1157 REQ_SEND;
1158}
1159
1160void
1161aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1162 PPCODE:
1163{
1164 int fd = s_fileno_croak (fh, 0);
1165 dREQ;
1166
1167 req->type = EIO_SYNC_FILE_RANGE;
1168 req->sv1 = newSVsv (fh);
1169 req->int1 = fd;
1170 req->offs = offset;
588 res = sbytes; 1171 req->size = nbytes;
589 } 1172 req->int2 = flags;
590 1173
591# endif 1174 REQ_SEND;
1175}
1176
1177void
1178aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1179 PPCODE:
1180{
1181 int fd = s_fileno_croak (fh, 0);
1182 dREQ;
1183
1184 req->type = EIO_FALLOCATE;
1185 req->sv1 = newSVsv (fh);
1186 req->int1 = fd;
1187 req->int2 = mode;
1188 req->offs = offset;
1189 req->size = len;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196 PPCODE:
1197{
1198 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199 int fd = s_fileno_croak (fh, 0);
1200 dREQ;
1201
1202 if (expect_false (close_fd < 0))
1203 {
1204 int pipefd [2];
1205
1206 if (
1207#ifdef _WIN32
1208 _pipe (pipefd, 1, _O_BINARY) < 0
592#else 1209#else
593 res = -1; 1210 pipe (pipefd) < 0
594 errno = ENOSYS; 1211 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
595#endif 1212#endif
596 1213 || close (pipefd [1]) < 0
597 if (res < 0
598 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
599#if __solaris
600 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
601#endif
602 )
603 )
604 {
605 /* emulate sendfile. this is a major pain in the ass */
606 char buf[4096];
607 res = 0;
608
609 while (count)
610 {
611 ssize_t cnt;
612
613 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
614
615 if (cnt <= 0)
616 { 1214 )
617 if (cnt && !res) res = -1; 1215 abort (); /*D*/
618 break;
619 }
620 1216
621 cnt = write (ofd, buf, cnt); 1217 close_fd = pipefd [0];
622
623 if (cnt <= 0)
624 {
625 if (cnt && !res) res = -1;
626 break;
627 }
628
629 offset += cnt;
630 res += cnt;
631 count -= cnt;
632 }
633 }
634
635 return res;
636}
637
638/* read a full directory */
639static int scandir_ (const char *path, void **namesp)
640{
641 DIR *dirp = opendir (path);
642 union
643 {
644 struct dirent d;
645 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
646 } u;
647 struct dirent *entp;
648 char *name, *names;
649 int memlen = 4096;
650 int memofs = 0;
651 int res = 0;
652 int errorno;
653
654 if (!dirp)
655 return -1;
656
657 names = malloc (memlen);
658
659 for (;;)
660 {
661 errno = 0, readdir_r (dirp, &u.d, &entp);
662
663 if (!entp)
664 break;
665
666 name = entp->d_name;
667
668 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
669 {
670 int len = strlen (name) + 1;
671
672 res++;
673
674 while (memofs + len > memlen)
675 {
676 memlen *= 2;
677 names = realloc (names, memlen);
678 if (!names)
679 break;
680 }
681
682 memcpy (names + memofs, name, len);
683 memofs += len;
684 }
685 }
686
687 errorno = errno;
688 closedir (dirp);
689
690 if (errorno)
691 {
692 free (names);
693 errno = errorno;
694 res = -1;
695 }
696
697 *namesp = (void *)names;
698 return res;
699}
700
701/*****************************************************************************/
702
703static void *aio_proc (void *thr_arg)
704{
705 aio_req req;
706 int type;
707
708 do
709 {
710 pthread_mutex_lock (&reqlock);
711
712 for (;;)
713 {
714 req = reqs;
715
716 if (reqs)
717 {
718 reqs = reqs->next;
719 if (!reqs) reqe = 0;
720 }
721
722 if (req)
723 break;
724
725 pthread_cond_wait (&reqwait, &reqlock);
726 }
727
728 pthread_mutex_unlock (&reqlock);
729
730 errno = 0; /* strictly unnecessary */
731
732 if (!req->cancelled)
733 switch (req->type)
734 {
735 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
736 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
737
738 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
739 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
740
741 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
742 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
743 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
744
745 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
746 case REQ_CLOSE: req->result = close (req->fd); break;
747 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
748 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
749 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
750 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
751 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
752
753 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
754 case REQ_FSYNC: req->result = fsync (req->fd); break;
755 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
756
757 case REQ_SLEEP:
758 {
759 struct timeval tv;
760
761 tv.tv_sec = req->fd;
762 tv.tv_usec = req->fd2;
763
764 req->result = select (0, 0, 0, 0, &tv);
765 }
766
767 case REQ_QUIT:
768 break;
769
770 default:
771 req->result = ENOSYS;
772 break;
773 } 1218 }
774 1219
775 req->errorno = errno; 1220 req->type = EIO_DUP2;
776 1221 req->int1 = close_fd;
777 pthread_mutex_lock (&reslock); 1222 req->sv2 = newSVsv (fh);
778
779 req->next = 0; 1223 req->int2 = fd;
780 1224
781 if (rese) 1225 REQ_SEND;
782 {
783 rese->next = req;
784 rese = req;
785 }
786 else
787 {
788 rese = ress = req;
789
790 /* write a dummy byte to the pipe so fh becomes ready */
791 write (respipe [1], &respipe, 1);
792 }
793
794 pthread_mutex_unlock (&reslock);
795 }
796 while (type != REQ_QUIT);
797
798 return 0;
799} 1226}
800 1227
801/*****************************************************************************/
802
803static void atfork_prepare (void)
804{
805 pthread_mutex_lock (&reqlock);
806 pthread_mutex_lock (&reslock);
807#if !HAVE_PREADWRITE
808 pthread_mutex_lock (&preadwritelock);
809#endif
810#if !HAVE_READDIR_R
811 pthread_mutex_lock (&readdirlock);
812#endif
813}
814
815static void atfork_parent (void)
816{
817#if !HAVE_READDIR_R
818 pthread_mutex_unlock (&readdirlock);
819#endif
820#if !HAVE_PREADWRITE
821 pthread_mutex_unlock (&preadwritelock);
822#endif
823 pthread_mutex_unlock (&reslock);
824 pthread_mutex_unlock (&reqlock);
825}
826
827static void atfork_child (void)
828{
829 aio_req prv;
830
831 started = 0;
832
833 while (reqs)
834 {
835 prv = reqs;
836 reqs = prv->next;
837 req_free (prv);
838 }
839
840 reqs = reqe = 0;
841
842 while (ress)
843 {
844 prv = ress;
845 ress = prv->next;
846 req_free (prv);
847 }
848
849 ress = rese = 0;
850
851 close (respipe [0]);
852 close (respipe [1]);
853 create_pipe ();
854
855 atfork_parent ();
856}
857
858#define dREQ \
859 aio_req req; \
860 \
861 if (SvOK (callback) && !SvROK (callback)) \
862 croak ("callback must be undef or of reference type"); \
863 \
864 Newz (0, req, 1, aio_cb); \
865 if (!req) \
866 croak ("out of memory during aio_req allocation"); \
867 \
868 req->callback = newSVsv (callback)
869
870#define REQ_SEND \
871 req_send (req); \
872 \
873 if (GIMME_V != G_VOID) \
874 XPUSHs (req_sv (req, AIO_REQ_KLASS));
875
876MODULE = IO::AIO PACKAGE = IO::AIO
877
878PROTOTYPES: ENABLE
879
880BOOT:
881{
882 HV *stash = gv_stashpv ("IO::AIO", 1);
883 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
884 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
885 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
886
887 create_pipe ();
888 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
889}
890
891void 1228void
892min_parallel (nthreads) 1229aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
893 int nthreads
894 PROTOTYPE: $
895
896void
897max_parallel (nthreads)
898 int nthreads
899 PROTOTYPE: $
900
901int
902max_outstanding (nreqs)
903 int nreqs
904 PROTOTYPE: $
905 CODE: 1230 PPCODE:
906 RETVAL = max_outstanding;
907 max_outstanding = nreqs;
908
909void
910aio_open (pathname,flags,mode,callback=&PL_sv_undef)
911 SV * pathname
912 int flags
913 int mode
914 SV * callback
915 PROTOTYPE: $$$;$
916 PPCODE:
917{ 1231{
1232 int fd = s_fileno_croak (fh, 0);
918 dREQ; 1233 dREQ;
919 1234
920 req->type = REQ_OPEN; 1235 req->type = EIO_SEEK;
921 req->data = newSVsv (pathname); 1236 req->sv1 = newSVsv (fh);
922 req->dataptr = SvPVbyte_nolen (req->data); 1237 req->int1 = fd;
923 req->fd = flags; 1238 req->offs = SvVAL64 (offset);
924 req->mode = mode; 1239 req->int2 = whence;
925 1240
926 REQ_SEND; 1241 REQ_SEND;
927} 1242}
928 1243
929void 1244void
930aio_close (fh,callback=&PL_sv_undef) 1245aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
931 SV * fh
932 SV * callback
933 PROTOTYPE: $;$
934 ALIAS: 1246 ALIAS:
935 aio_close = REQ_CLOSE
936 aio_fsync = REQ_FSYNC
937 aio_fdatasync = REQ_FDATASYNC
938 PPCODE:
939{
940 dREQ;
941
942 req->type = ix;
943 req->fh = newSVsv (fh);
944 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
945
946 REQ_SEND (req);
947}
948
949void
950aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
951 SV * fh
952 UV offset
953 UV length
954 SV * data
955 UV dataoffset
956 SV * callback
957 ALIAS:
958 aio_read = REQ_READ 1247 aio_read = EIO_READ
959 aio_write = REQ_WRITE 1248 aio_write = EIO_WRITE
960 PROTOTYPE: $$$$$;$
961 PPCODE: 1249 PPCODE:
962{ 1250{
963 aio_req req;
964 STRLEN svlen; 1251 STRLEN svlen;
1252 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
965 char *svptr = SvPVbyte (data, svlen); 1253 char *svptr = SvPVbyte (data, svlen);
966 1254 UV len = SvUV (length);
967 SvUPGRADE (data, SVt_PV);
968 SvPOK_on (data);
969 1255
970 if (dataoffset < 0) 1256 if (dataoffset < 0)
971 dataoffset += svlen; 1257 dataoffset += svlen;
972 1258
973 if (dataoffset < 0 || dataoffset > svlen) 1259 if (dataoffset < 0 || dataoffset > svlen)
974 croak ("data offset outside of string"); 1260 croak ("dataoffset outside of data scalar");
975 1261
976 if (ix == REQ_WRITE) 1262 if (ix == EIO_WRITE)
977 { 1263 {
978 /* write: check length and adjust. */ 1264 /* write: check length and adjust. */
979 if (length < 0 || length + dataoffset > svlen) 1265 if (!SvOK (length) || len + dataoffset > svlen)
980 length = svlen - dataoffset; 1266 len = svlen - dataoffset;
981 } 1267 }
982 else 1268 else
983 { 1269 {
984 /* read: grow scalar as necessary */ 1270 /* read: check type and grow scalar as necessary */
1271 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
985 svptr = SvGROW (data, length + dataoffset); 1272 svptr = sv_grow (data, len + dataoffset + 1);
1273 else if (SvCUR (data) < len + dataoffset)
1274 croak ("length + dataoffset outside of scalar, and cannot grow");
986 } 1275 }
987
988 if (length < 0)
989 croak ("length must not be negative");
990 1276
991 { 1277 {
992 dREQ; 1278 dREQ;
993 1279
994 req->type = ix; 1280 req->type = ix;
995 req->fh = newSVsv (fh); 1281 req->sv1 = newSVsv (fh);
996 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1282 req->int1 = fd;
997 : IoOFP (sv_2io (fh))); 1283 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
998 req->offset = offset; 1284 req->size = len;
999 req->length = length;
1000 req->data = SvREFCNT_inc (data); 1285 req->sv2 = SvREFCNT_inc (data);
1001 req->dataptr = (char *)svptr + dataoffset; 1286 req->ptr2 = (char *)svptr + dataoffset;
1287 req->stroffset = dataoffset;
1002 1288
1003 if (!SvREADONLY (data)) 1289 if (!SvREADONLY (data))
1004 { 1290 {
1005 SvREADONLY_on (data); 1291 SvREADONLY_on (data);
1006 req->data2ptr = (void *)data; 1292 req->flags |= FLAG_SV2_RO_OFF;
1007 } 1293 }
1008 1294
1009 REQ_SEND; 1295 REQ_SEND;
1010 } 1296 }
1011} 1297}
1012 1298
1013void 1299void
1014aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1300aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1015 SV * out_fh 1301 ALIAS:
1016 SV * in_fh 1302 aio_readlink = EIO_READLINK
1017 UV in_offset 1303 aio_realpath = EIO_REALPATH
1018 UV length
1019 SV * callback
1020 PROTOTYPE: $$$$;$
1021 PPCODE: 1304 PPCODE:
1022{ 1305{
1306 dREQ;
1307
1308 req->type = ix;
1309 req_set_path1 (req, pathname);
1310
1311 REQ_SEND;
1312}
1313
1314void
1315aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1316 PPCODE:
1317{
1318 int ifd = s_fileno_croak (in_fh , 0);
1319 int ofd = s_fileno_croak (out_fh, 1);
1023 dREQ; 1320 dREQ;
1024 1321
1025 req->type = REQ_SENDFILE; 1322 req->type = EIO_SENDFILE;
1026 req->fh = newSVsv (out_fh); 1323 req->sv1 = newSVsv (out_fh);
1027 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1324 req->int1 = ofd;
1028 req->fh2 = newSVsv (in_fh); 1325 req->sv2 = newSVsv (in_fh);
1029 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1326 req->int2 = ifd;
1030 req->offset = in_offset; 1327 req->offs = in_offset;
1031 req->length = length; 1328 req->size = length;
1032 1329
1033 REQ_SEND; 1330 REQ_SEND;
1034} 1331}
1035 1332
1036void 1333void
1037aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1334aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1038 SV * fh
1039 UV offset
1040 IV length
1041 SV * callback
1042 PROTOTYPE: $$$;$
1043 PPCODE: 1335 PPCODE:
1044{ 1336{
1337 int fd = s_fileno_croak (fh, 0);
1045 dREQ; 1338 dREQ;
1046 1339
1047 req->type = REQ_READAHEAD; 1340 req->type = EIO_READAHEAD;
1048 req->fh = newSVsv (fh); 1341 req->sv1 = newSVsv (fh);
1049 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1342 req->int1 = fd;
1050 req->offset = offset; 1343 req->offs = offset;
1051 req->length = length; 1344 req->size = length;
1052 1345
1053 REQ_SEND; 1346 REQ_SEND;
1054} 1347}
1055 1348
1056void 1349void
1057aio_stat (fh_or_path,callback=&PL_sv_undef) 1350aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1058 SV * fh_or_path
1059 SV * callback
1060 ALIAS: 1351 ALIAS:
1061 aio_stat = REQ_STAT 1352 aio_stat = EIO_STAT
1062 aio_lstat = REQ_LSTAT 1353 aio_lstat = EIO_LSTAT
1354 aio_statvfs = EIO_STATVFS
1063 PPCODE: 1355 PPCODE:
1064{ 1356{
1065 dREQ; 1357 dREQ;
1066 1358
1067 New (0, req->statdata, 1, Stat_t); 1359 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1068 if (!req->statdata)
1069 {
1070 req_free (req);
1071 croak ("out of memory during aio_req->statdata allocation");
1072 }
1073
1074 if (SvPOK (fh_or_path))
1075 {
1076 req->type = ix;
1077 req->data = newSVsv (fh_or_path);
1078 req->dataptr = SvPVbyte_nolen (req->data);
1079 }
1080 else
1081 {
1082 req->type = REQ_FSTAT;
1083 req->fh = newSVsv (fh_or_path);
1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1085 }
1086 1360
1087 REQ_SEND; 1361 REQ_SEND;
1088} 1362}
1089 1363
1364UV
1365major (UV dev)
1366 ALIAS:
1367 minor = 1
1368 CODE:
1369 RETVAL = ix ? major (dev) : minor (dev);
1370 OUTPUT:
1371 RETVAL
1372
1373UV
1374makedev (UV maj, UV min)
1375 CODE:
1376 RETVAL = makedev (maj, min);
1377 OUTPUT:
1378 RETVAL
1379
1090void 1380void
1381aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1387 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1388 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1389
1390 REQ_SEND;
1391}
1392
1393void
1394aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1401
1402 REQ_SEND;
1403}
1404
1405void
1406aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 dREQ;
1410
1411 req->int2 = mode;
1412 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1413
1414 REQ_SEND;
1415}
1416
1417void
1418aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1419 PPCODE:
1420{
1421 dREQ;
1422
1423 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1424 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1425 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1426
1427 REQ_SEND;
1428}
1429
1430void
1431aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 dREQ;
1435
1436 req->type = EIO_READDIR;
1437 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1438
1439 if (flags & EIO_READDIR_DENTS)
1440 req->int1 |= EIO_READDIR_CUSTOM2;
1441
1442 req_set_path1 (req, pathname);
1443
1444 REQ_SEND;
1445}
1446
1447void
1448aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->type = EIO_MKDIR;
1454 req->int2 = mode;
1455 req_set_path1 (req, pathname);
1456
1457 REQ_SEND;
1458}
1459
1460void
1091aio_unlink (pathname,callback=&PL_sv_undef) 1461aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1092 SV * pathname
1093 SV * callback
1094 ALIAS: 1462 ALIAS:
1095 aio_unlink = REQ_UNLINK 1463 aio_unlink = EIO_UNLINK
1096 aio_rmdir = REQ_RMDIR 1464 aio_rmdir = EIO_RMDIR
1097 aio_readdir = REQ_READDIR 1465 aio_readdir = EIO_READDIR
1098 PPCODE: 1466 PPCODE:
1099{ 1467{
1100 dREQ; 1468 dREQ;
1101 1469
1102 req->type = ix; 1470 req->type = ix;
1103 req->data = newSVsv (pathname); 1471 req_set_path1 (req, pathname);
1104 req->dataptr = SvPVbyte_nolen (req->data); 1472
1105
1106 REQ_SEND; 1473 REQ_SEND;
1107} 1474}
1108 1475
1109void 1476void
1110aio_link (oldpath,newpath,callback=&PL_sv_undef) 1477aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1111 SV * oldpath
1112 SV * newpath
1113 SV * callback
1114 ALIAS: 1478 ALIAS:
1115 aio_link = REQ_LINK 1479 aio_link = EIO_LINK
1116 aio_symlink = REQ_SYMLINK 1480 aio_symlink = EIO_SYMLINK
1117 aio_rename = REQ_RENAME 1481 aio_rename = EIO_RENAME
1118 PPCODE: 1482 PPCODE:
1119{ 1483{
1484 eio_wd wd2 = 0;
1120 dREQ; 1485 dREQ;
1121 1486
1122 req->type = ix; 1487 req->type = ix;
1123 req->fh = newSVsv (oldpath); 1488 req_set_path1 (req, oldpath);
1124 req->data2ptr = SvPVbyte_nolen (req->fh); 1489 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1125 req->data = newSVsv (newpath); 1490 req->int3 = (long)wd2;
1126 req->dataptr = SvPVbyte_nolen (req->data);
1127 1491
1128 REQ_SEND; 1492 REQ_SEND;
1129} 1493}
1130 1494
1131void 1495void
1132aio_sleep (delay,callback=&PL_sv_undef) 1496aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1133 double delay
1134 SV * callback
1135 PPCODE: 1497 PPCODE:
1136{ 1498{
1137 dREQ; 1499 dREQ;
1138 1500
1139 req->type = REQ_SLEEP; 1501 req->type = EIO_MKNOD;
1140 req->fd = delay < 0. ? 0 : delay; 1502 req->int2 = (mode_t)mode;
1141 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1503 req->offs = dev;
1142 1504 req_set_path1 (req, pathname);
1505
1143 REQ_SEND; 1506 REQ_SEND;
1144} 1507}
1145 1508
1146void 1509void
1147aio_group (callback=&PL_sv_undef) 1510aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1148 SV * callback 1511 ALIAS:
1149 PROTOTYPE: ;$ 1512 aio_mtouch = EIO_MTOUCH
1513 aio_msync = EIO_MSYNC
1150 PPCODE: 1514 PPCODE:
1151{ 1515{
1516 STRLEN svlen;
1517 char *svptr = SvPVbyte (data, svlen);
1518 UV len = SvUV (length);
1519
1520 if (offset < 0)
1521 offset += svlen;
1522
1523 if (offset < 0 || offset > svlen)
1524 croak ("offset outside of scalar");
1525
1526 if (!SvOK (length) || len + offset > svlen)
1527 len = svlen - offset;
1528
1529 {
1530 dREQ;
1531
1532 req->type = ix;
1533 req->sv2 = SvREFCNT_inc (data);
1534 req->ptr2 = (char *)svptr + offset;
1535 req->size = len;
1536 req->int1 = flags;
1537
1538 REQ_SEND;
1539 }
1540}
1541
1542void
1543aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1544 PPCODE:
1545{
1546 STRLEN svlen;
1547 char *svptr = SvPVbyte (data, svlen);
1548 UV len = SvUV (length);
1549
1550 if (offset < 0)
1551 offset += svlen;
1552
1553 if (offset < 0 || offset > svlen)
1554 croak ("offset outside of scalar");
1555
1556 if (!SvOK (length) || len + offset > svlen)
1557 len = svlen - offset;
1558
1559 {
1560 dREQ;
1561
1562 req->type = EIO_MLOCK;
1563 req->sv2 = SvREFCNT_inc (data);
1564 req->ptr2 = (char *)svptr + offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568 }
1569}
1570
1571void
1572aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 dREQ;
1576
1577 req->type = EIO_MLOCKALL;
1578 req->int1 = flags;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 int fd = s_fileno_croak (fh, 0);
1152 dREQ; 1588 dREQ;
1589
1590 req->type = EIO_CUSTOM;
1591 req->sv1 = newSVsv (fh);
1592 req->int1 = fd;
1593
1594 req->feed = fiemap;
1595#if HAVE_FIEMAP
1596 /* keep our fingers crossed that the next two types are 64 bit */
1597 req->offs = start;
1598 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1599 req->int2 = flags;
1600 req->int3 = SvOK (count) ? SvIV (count) : -1;
1601#endif
1602
1603 REQ_SEND;
1604}
1605
1606void
1607aio_busy (double delay, SV *callback = &PL_sv_undef)
1608 PPCODE:
1609{
1610 dREQ;
1611
1612 req->type = EIO_BUSY;
1613 req->nv1 = delay < 0. ? 0. : delay;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_group (SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 dREQ;
1623
1153 req->type = REQ_GROUP; 1624 req->type = EIO_GROUP;
1154 req->grp_next = req;
1155 req->grp_prev = req;
1156 1625
1626 PUTBACK;
1157 req_send (req); 1627 req_submit (req);
1628 SPAGAIN;
1629
1158 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1630 XPUSHs (req_sv (req, aio_grp_stash));
1159} 1631}
1632
1633void
1634aio_nop (SV *callback = &PL_sv_undef)
1635 ALIAS:
1636 aio_nop = EIO_NOP
1637 aio_sync = EIO_SYNC
1638 PPCODE:
1639{
1640 dREQ;
1641
1642 req->type = ix;
1643
1644 REQ_SEND;
1645}
1646
1647int
1648aioreq_pri (int pri = NO_INIT)
1649 CODE:
1650 RETVAL = next_pri;
1651 if (items > 0)
1652 {
1653 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1654 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1655 next_pri = pri;
1656 }
1657 OUTPUT:
1658 RETVAL
1659
1660void
1661aioreq_nice (int nice = 0)
1662 CODE:
1663 nice = next_pri - nice;
1664 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1665 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1666 next_pri = nice;
1160 1667
1161void 1668void
1162flush () 1669flush ()
1163 PROTOTYPE:
1164 CODE: 1670 CODE:
1165 while (nreqs) 1671 while (eio_nreqs ())
1166 { 1672 {
1167 poll_wait (); 1673 poll_wait ();
1168 poll_cb (); 1674 poll_cb ();
1169 } 1675 }
1170 1676
1171void 1677int
1172poll() 1678poll ()
1173 PROTOTYPE:
1174 CODE: 1679 CODE:
1175 if (nreqs)
1176 {
1177 poll_wait (); 1680 poll_wait ();
1178 poll_cb (); 1681 RETVAL = poll_cb ();
1179 }
1180
1181int
1182poll_fileno()
1183 PROTOTYPE:
1184 CODE:
1185 RETVAL = respipe [0];
1186 OUTPUT: 1682 OUTPUT:
1187 RETVAL 1683 RETVAL
1188 1684
1189int 1685int
1686poll_fileno ()
1687 CODE:
1688 RETVAL = s_epipe_fd (&respipe);
1689 OUTPUT:
1690 RETVAL
1691
1692int
1190poll_cb(...) 1693poll_cb (...)
1191 PROTOTYPE: 1694 PROTOTYPE:
1192 CODE: 1695 CODE:
1193 RETVAL = poll_cb (); 1696 RETVAL = poll_cb ();
1194 OUTPUT: 1697 OUTPUT:
1195 RETVAL 1698 RETVAL
1196 1699
1197void 1700void
1198poll_wait() 1701poll_wait ()
1199 PROTOTYPE:
1200 CODE: 1702 CODE:
1201 if (nreqs)
1202 poll_wait (); 1703 poll_wait ();
1203 1704
1204int 1705int
1205nreqs() 1706nreqs ()
1206 PROTOTYPE:
1207 CODE: 1707 CODE:
1208 RETVAL = nreqs; 1708 RETVAL = eio_nreqs ();
1209 OUTPUT: 1709 OUTPUT:
1210 RETVAL 1710 RETVAL
1211 1711
1712int
1713nready ()
1714 CODE:
1715 RETVAL = eio_nready ();
1716 OUTPUT:
1717 RETVAL
1718
1719int
1720npending ()
1721 CODE:
1722 RETVAL = eio_npending ();
1723 OUTPUT:
1724 RETVAL
1725
1726int
1727nthreads ()
1728 CODE:
1729 RETVAL = eio_nthreads ();
1730 OUTPUT:
1731 RETVAL
1732
1733int
1734fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1735 CODE:
1736 RETVAL = posix_fadvise (fh, offset, length, advice);
1737 OUTPUT:
1738 RETVAL
1739
1740IV
1741sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1742 CODE:
1743 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1744 OUTPUT:
1745 RETVAL
1746
1747void
1748mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749 PPCODE:
1750 sv_unmagic (scalar, MMAP_MAGIC);
1751{
1752 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754 if (addr == (void *)-1)
1755 XSRETURN_NO;
1756
1757 sv_force_normal (scalar);
1758
1759 /* we store the length in mg_obj, as namlen is I32 :/ */
1760 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1761 ->mg_obj = (SV *)length;
1762
1763 SvUPGRADE (scalar, SVt_PV); /* nop... */
1764
1765 if (!(prot & PROT_WRITE))
1766 SvREADONLY_on (scalar);
1767
1768 if (SvLEN (scalar))
1769 Safefree (SvPVX (scalar));
1770
1771 SvPVX (scalar) = (char *)addr;
1772 SvCUR_set (scalar, length);
1773 SvLEN_set (scalar, 0);
1774 SvPOK_only (scalar);
1775
1776 XSRETURN_YES;
1777}
1778
1779void
1780munmap (SV *scalar)
1781 CODE:
1782 sv_unmagic (scalar, MMAP_MAGIC);
1783
1784int
1785madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786 ALIAS:
1787 mprotect = 1
1788 CODE:
1789{
1790 STRLEN svlen;
1791 void *addr = SvPVbyte (scalar, svlen);
1792 STRLEN len = SvUV (length);
1793
1794 if (offset < 0)
1795 offset += svlen;
1796
1797 if (offset < 0 || offset > svlen)
1798 croak ("offset outside of scalar");
1799
1800 if (!SvOK (length) || len + offset > svlen)
1801 len = svlen - offset;
1802
1803 addr = (void *)(((intptr_t)addr) + offset);
1804 eio_page_align (&addr, &len);
1805
1806 switch (ix)
1807 {
1808 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1809 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1810 }
1811}
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1817 CODE:
1818{
1819 STRLEN svlen;
1820 void *addr = SvPVbyte (scalar, svlen);
1821 size_t len = SvUV (length);
1822
1823 if (offset < 0)
1824 offset += svlen;
1825
1826 if (offset < 0 || offset > svlen)
1827 croak ("offset outside of scalar");
1828
1829 if (!SvOK (length) || len + offset > svlen)
1830 len = svlen - offset;
1831
1832 addr = (void *)(((intptr_t)addr) + offset);
1833 eio_page_align (&addr, &len);
1834#if _POSIX_MEMLOCK_RANGE
1835 RETVAL = munlock (addr, len);
1836#else
1837 RETVAL = EIO_ENOSYS ();
1838#endif
1839}
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844munlockall ()
1845 CODE:
1846#if _POSIX_MEMLOCK
1847 munlockall ();
1848#else
1849 RETVAL = EIO_ENOSYS ();
1850#endif
1851 OUTPUT:
1852 RETVAL
1853
1854int
1855splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856 CODE:
1857{
1858#if HAVE_LINUX_SPLICE
1859 loff_t off_in_, off_out_;
1860 RETVAL = splice (
1861 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1862 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1863 length, flags
1864 );
1865#else
1866 RETVAL = EIO_ENOSYS ();
1867#endif
1868}
1869 OUTPUT:
1870 RETVAL
1871
1872int
1873tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1874 CODE:
1875#if HAVE_LINUX_SPLICE
1876 RETVAL = tee (rfh, wfh, length, flags);
1877#else
1878 RETVAL = EIO_ENOSYS ();
1879#endif
1880 OUTPUT:
1881 RETVAL
1882
1883int
1884pipesize (aio_rfd rfh, int new_size = -1)
1885 PROTOTYPE: $;$
1886 CODE:
1887#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1888 if (new_size >= 0)
1889 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1890 else
1891 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1892#else
1893 errno = ENOSYS;
1894 RETVAL = -1;
1895#endif
1896 OUTPUT:
1897 RETVAL
1898
1899void
1900pipe2 (int flags = 0)
1901 PROTOTYPE: ;$
1902 PPCODE:
1903{
1904 int fd[2];
1905 int res;
1906
1907 if (flags)
1908#if HAVE_PIPE2
1909 res = pipe2 (fd, flags);
1910#else
1911 res = (errno = ENOSYS, -1);
1912#endif
1913 else
1914 res = pipe (fd);
1915
1916 if (!res)
1917 {
1918 EXTEND (SP, 2);
1919 PUSHs (newmortalFH (fd[0], O_RDONLY));
1920 PUSHs (newmortalFH (fd[1], O_WRONLY));
1921 }
1922}
1923
1924void _on_next_submit (SV *cb)
1925 CODE:
1926 SvREFCNT_dec (on_next_submit);
1927 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1928
1929PROTOTYPES: DISABLE
1930
1931MODULE = IO::AIO PACKAGE = IO::AIO::WD
1932
1933BOOT:
1934{
1935 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1936 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1937}
1938
1939void
1940DESTROY (SV *self)
1941 CODE:
1942{
1943 aio_wd wd = SvAIO_WD (self);
1944#if HAVE_AT
1945 {
1946 SV *callback = &PL_sv_undef;
1947 dREQ; /* clobbers next_pri :/ */
1948 next_pri = req->pri; /* restore next_pri */
1949 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1950 req->type = EIO_WD_CLOSE;
1951 req->wd = wd;
1952 REQ_SEND;
1953 }
1954#else
1955 eio_wd_close_sync (wd);
1956#endif
1957}
1958
1212MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1959MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1213 1960
1214void 1961void
1215cancel (aio_req_ornot req) 1962cancel (aio_req_ornot req)
1216 PROTOTYPE:
1217 CODE: 1963 CODE:
1218 req_cancel (req); 1964 eio_cancel (req);
1965
1966void
1967cb (aio_req_ornot req, SV *callback = NO_INIT)
1968 PPCODE:
1969{
1970 if (GIMME_V != G_VOID)
1971 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1972
1973 if (items > 1)
1974 {
1975 SV *cb_cv = get_cb (callback);
1976
1977 SvREFCNT_dec (req->callback);
1978 req->callback = SvREFCNT_inc (cb_cv);
1979 }
1980}
1219 1981
1220MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1982MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1221 1983
1222void 1984void
1223add (aio_req grp, ...) 1985add (aio_req grp, ...)
1224 PROTOTYPE: $;@
1225 PPCODE: 1986 PPCODE:
1226{ 1987{
1227 int i; 1988 int i;
1989
1990 if (grp->int1 == 2)
1991 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1228 1992
1229 for (i = 1; i < items; ++i ) 1993 for (i = 1; i < items; ++i )
1230 { 1994 {
1995 aio_req req;
1996
1231 if (GIMME_V != G_VOID) 1997 if (GIMME_V != G_VOID)
1232 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1998 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1233 1999
1234 aio_req req = SvAIO_REQ (ST (i)); 2000 req = SvAIO_REQ (ST (i));
1235 2001
1236 if (req) 2002 if (req)
1237 { 2003 eio_grp_add (grp, req);
1238 req->grp_prev = grp;
1239 req->grp_next = grp->grp_next;
1240 grp->grp_next->grp_prev = req;
1241 grp->grp_next = req;
1242
1243 req->grp = grp;
1244 }
1245 } 2004 }
1246} 2005}
1247 2006
2007void
2008cancel_subs (aio_req_ornot req)
2009 CODE:
2010 req_cancel_subs (req);
2011
2012void
2013result (aio_req grp, ...)
2014 CODE:
2015{
2016 int i;
2017 AV *av;
2018
2019 grp->errorno = errno;
2020
2021 av = newAV ();
2022 av_extend (av, items - 1);
2023
2024 for (i = 1; i < items; ++i )
2025 av_push (av, newSVsv (ST (i)));
2026
2027 SvREFCNT_dec (grp->sv1);
2028 grp->sv1 = (SV *)av;
2029}
2030
2031void
2032errno (aio_req grp, int errorno = errno)
2033 CODE:
2034 grp->errorno = errorno;
2035
2036void
2037limit (aio_req grp, int limit)
2038 CODE:
2039 eio_grp_limit (grp, limit);
2040
2041void
2042feed (aio_req grp, SV *callback = &PL_sv_undef)
2043 CODE:
2044{
2045 SvREFCNT_dec (grp->sv2);
2046 grp->sv2 = newSVsv (callback);
2047 grp->feed = aio_grp_feed;
2048
2049 if (grp->int2 <= 0)
2050 grp->int2 = 2;
2051
2052 eio_grp_limit (grp, grp->int2);
2053}
2054

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