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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.242 by root, Tue Jul 12 20:46:33 2016 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
15 8
16#include "autoconf/config.h" 9#include "schmorp.h"
17
18#include <pthread.h>
19 10
20#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
21#include <errno.h> 13#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 14#include <sys/types.h>
25#include <sys/stat.h> 15#include <sys/stat.h>
26#include <limits.h> 16#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 17#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 18#include <sched.h>
31 19
32#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
33# if __linux
34# include <sys/sendfile.h>
35# elif __freebsd
36# include <sys/socket.h>
37# include <sys/uio.h> 21# include <sys/mman.h>
38# 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
39# include <sys/socket.h> 85 #include <sys/time.h>
40# elif __solaris /* not yet */
41# 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
42# else 144# else
43# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 146# endif
45#endif 147#endif
46 148
47/* used for struct dirent, AIX doesn't provide it */ 149/* defines all sorts of constants to 0 unless they are already defined */
48#ifndef NAME_MAX 150/* also provides const_iv_ and const_niv_ macros for them */
49# define NAME_MAX 4096 151#include "def0.h"
50#endif
51 152
52#if __ia64 153#ifndef makedev
53# define STACKSIZE 65536 154# define makedev(maj,min) (((maj) << 8) | (min))
54#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55# define STACKSIZE PTHREAD_STACK_MIN
56#else
57# define STACKSIZE 16384
58#endif 155#endif
156#ifndef major
157# define major(dev) ((dev) >> 8)
158#endif
159#ifndef minor
160# define minor(dev) ((dev) & 0xff)
161#endif
59 162
60/* buffer size for various temporary buffers */ 163#if PAGESIZE <= 0
61#define AIO_BUFSIZE 65536 164# define PAGESIZE sysconf (_SC_PAGESIZE)
165#endif
62 166
63#define dBUF \ 167/*****************************************************************************/
64 char *aio_buf = malloc (AIO_BUFSIZE); \ 168
65 if (!aio_buf) \ 169static void
170fiemap (eio_req *req)
171{
172 req->result = -1;
173
174#if HAVE_FIEMAP
175 /* assume some c99 */
176 struct fiemap *fiemap = 0;
177 size_t end_offset;
178 int count = req->int3;
179
180 req->flags |= EIO_FLAG_PTR1_FREE;
181
182 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
183 /* increase in 3.5kb steps */
184 if (count < 0)
185 count = 8;
186
187 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
188 errno = ENOMEM;
189 if (!fiemap)
66 return -1; 190 return;
67 191
68#define fBUF free (aio_buf) 192 req->ptr1 = fiemap;
69 193
70enum { 194 fiemap->fm_start = req->offs;
71 REQ_QUIT, 195 fiemap->fm_length = req->size;
72 REQ_OPEN, REQ_CLOSE, 196 fiemap->fm_flags = req->int2;
73 REQ_READ, REQ_WRITE, REQ_READAHEAD, 197 fiemap->fm_extent_count = count;
74 REQ_SENDFILE,
75 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
76 REQ_FSYNC, REQ_FDATASYNC,
77 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
78 REQ_READDIR,
79 REQ_LINK, REQ_SYMLINK,
80 REQ_GROUP, REQ_NOP,
81 REQ_BUSY,
82};
83 198
84#define AIO_REQ_KLASS "IO::AIO::REQ" 199 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
85#define AIO_GRP_KLASS "IO::AIO::GRP" 200 return;
86 201
87typedef struct aio_cb 202 if (req->int3 >= 0 /* not autosizing */
88{ 203 || !fiemap->fm_mapped_extents /* no more extents */
89 struct aio_cb *volatile next; 204 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205 goto done;
90 206
91 SV *data, *callback; 207 /* else we have to loop -
92 SV *fh, *fh2; 208 * it would be tempting (actually I tried that first) to just query the
93 void *dataptr, *data2ptr; 209 * number of extents needed, but linux often feels like not returning all
94 Stat_t *statdata; 210 * extents, without telling us it left any out. this complicates
95 off_t offset; 211 * this quite a bit.
96 size_t length;
97 ssize_t result;
98
99 STRLEN dataoffset;
100 int type;
101 int fd, fd2;
102 int errorno;
103 mode_t mode; /* open */
104
105 unsigned char flags;
106 unsigned char pri;
107
108 SV *self; /* the perl counterpart of this request, if any */
109 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
110} aio_cb;
111
112enum {
113 FLAG_CANCELLED = 0x01,
114};
115
116typedef aio_cb *aio_req;
117typedef aio_cb *aio_req_ornot;
118
119enum {
120 PRI_MIN = -4,
121 PRI_MAX = 4,
122
123 DEFAULT_PRI = 0,
124 PRI_BIAS = -PRI_MIN,
125 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
126};
127
128static int next_pri = DEFAULT_PRI + PRI_BIAS;
129
130static int started, wanted;
131static volatile int nreqs;
132static int max_outstanding = 1<<30;
133static int respipe [2];
134
135#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
136# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
137#else
138# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
139#endif
140
141static pthread_mutex_t reslock = AIO_MUTEX_INIT;
142static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
143static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
144
145/*
146 * a somewhat faster data structure might be nice, but
147 * with 8 priorities this actually needs <20 insns
148 * per shift, the most expensive operation.
149 */ 212 */
150typedef struct {
151 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
152 int size;
153} reqq;
154 213
155static reqq req_queue; 214 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
156static reqq res_queue;
157 215
158int reqq_push (reqq *q, aio_req req) 216 for (;;)
159{
160 int pri = req->pri;
161 req->next = 0;
162
163 if (q->qe[pri])
164 { 217 {
165 q->qe[pri]->next = req; 218 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
166 q->qe[pri] = req; 219 char scratch[3072];
167 } 220 struct fiemap *incmap = (struct fiemap *)scratch;
168 else
169 q->qe[pri] = q->qs[pri] = req;
170 221
171 return q->size++; 222 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
172} 223 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
224 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
225 incmap->fm_flags = fiemap->fm_flags;
226 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
173 227
174aio_req reqq_shift (reqq *q) 228 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
175{
176 int pri;
177
178 if (!q->size)
179 return 0; 229 return;
180 230
181 --q->size; 231 if (!incmap->fm_mapped_extents)
232 goto done;
182 233
183 for (pri = NUM_PRI; pri--; ) 234 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
184 { 235 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
185 aio_req req = q->qs[pri]; 236 errno = ENOMEM;
186
187 if (req) 237 if (!fiemap)
238 return;
239
240 req->ptr1 = fiemap;
241
242 for (count = 0; count < incmap->fm_mapped_extents; ++count)
188 { 243 {
189 if (!(q->qs[pri] = req->next)) 244 struct fiemap_extent *e = incmap->fm_extents + count;
190 q->qe[pri] = 0;
191 245
192 return req; 246 if (e->fe_logical + e->fe_length >= end_offset)
247 goto done;
248
249 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
250
251 if (e->fe_flags & FIEMAP_EXTENT_LAST)
252 goto done;
253
193 } 254 }
194 } 255 }
195 256
196 abort (); 257done:
197} 258 req->result = 0;
198 259
260#else
261 errno = ENOSYS;
262#endif
263}
264
265/*****************************************************************************/
266
267enum {
268 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
269};
270
271typedef eio_req *aio_req;
272typedef eio_req *aio_req_ornot;
273typedef eio_wd aio_wd;
274
275static SV *on_next_submit;
276static int next_pri = EIO_PRI_DEFAULT;
277static int max_outstanding;
278
279static s_epipe respipe;
280
281static void req_destroy (aio_req req);
199static void req_invoke (aio_req req); 282static void req_cancel (aio_req req);
200static void req_free (aio_req req); 283
284static void
285want_poll (void)
286{
287 /* write a dummy byte to the pipe so fh becomes ready */
288 s_epipe_signal (&respipe);
289}
290
291static void
292done_poll (void)
293{
294 /* read any signals sent by the worker threads */
295 s_epipe_drain (&respipe);
296}
201 297
202/* must be called at most once */ 298/* must be called at most once */
203static SV *req_sv (aio_req req, const char *klass) 299static SV *
300req_sv (aio_req req, HV *stash)
204{ 301{
205 if (!req->self) 302 if (!req->self)
206 { 303 {
207 req->self = (SV *)newHV (); 304 req->self = (SV *)newHV ();
208 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 305 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
209 } 306 }
210 307
211 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 308 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
212} 309}
213 310
214static aio_req SvAIO_REQ (SV *sv) 311static SV *
312newSVaio_wd (aio_wd wd)
313{
314 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315}
316
317static aio_req
318SvAIO_REQ (SV *sv)
215{ 319{
216 MAGIC *mg; 320 MAGIC *mg;
217 321
218 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 322 if (!SvROK (sv)
323 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
324 || (SvSTASH (SvRV (sv)) != aio_grp_stash
325 && SvSTASH (SvRV (sv)) != aio_req_stash
326 && !sv_derived_from (sv, "IO::AIO::REQ")))
219 croak ("object of class " AIO_REQ_KLASS " expected"); 327 croak ("object of class IO::AIO::REQ expected");
220 328
221 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 329 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
222 330
223 return mg ? (aio_req)mg->mg_ptr : 0; 331 return mg ? (aio_req)mg->mg_ptr : 0;
224} 332}
225 333
334static aio_wd
335SvAIO_WD (SV *sv)
336{
337 if (!SvROK (sv)
338 || SvTYPE (SvRV (sv)) != SVt_PVMG
339 || SvSTASH (SvRV (sv)) != aio_wd_stash)
340 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
341
342 return (aio_wd)(long)SvIVX (SvRV (sv));
343}
344
345static SV *
346newmortalFH (int fd, int flags)
347{
348 if (fd < 0)
349 return &PL_sv_undef;
350
351 GV *gv = (GV *)sv_newmortal ();
352 char sym[64];
353 int symlen;
354
355 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
356 gv_init (gv, aio_stash, sym, symlen, 0);
357
358 symlen = snprintf (
359 sym,
360 sizeof (sym),
361 "%s&=%d",
362 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
363 fd
364 );
365
366 return do_open (gv, sym, symlen, 0, 0, 0, 0)
367 ? (SV *)gv : &PL_sv_undef;
368}
369
370static void
226static void aio_grp_feed (aio_req grp) 371aio_grp_feed (aio_req grp)
227{ 372{
228 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 373 if (grp->sv2 && SvOK (grp->sv2))
229 { 374 {
230 int old_len = grp->length;
231
232 if (grp->fh2 && SvOK (grp->fh2))
233 {
234 dSP; 375 dSP;
235 376
236 ENTER; 377 ENTER;
237 SAVETMPS; 378 SAVETMPS;
238 PUSHMARK (SP); 379 PUSHMARK (SP);
239 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 380 XPUSHs (req_sv (grp, aio_grp_stash));
240 PUTBACK; 381 PUTBACK;
241 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 382 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
242 SPAGAIN; 383 SPAGAIN;
243 FREETMPS; 384 FREETMPS;
244 LEAVE; 385 LEAVE;
245 }
246
247 /* stop if no progress has been made */
248 if (old_len == grp->length)
249 {
250 SvREFCNT_dec (grp->fh2);
251 grp->fh2 = 0;
252 break;
253 }
254 } 386 }
255} 387}
256 388
257static void aio_grp_dec (aio_req grp) 389static void
390req_submit (eio_req *req)
258{ 391{
259 --grp->length; 392 eio_submit (req);
260 393
261 /* call feeder, if applicable */ 394 if (expect_false (on_next_submit))
262 aio_grp_feed (grp);
263
264 /* finish, if done */
265 if (!grp->length && grp->fd)
266 { 395 {
267 req_invoke (grp); 396 dSP;
268 req_free (grp); 397 SV *cb = sv_2mortal (on_next_submit);
398
399 on_next_submit = 0;
400
401 PUSHMARK (SP);
402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
269 } 404 }
270} 405}
271 406
272static void poll_wait () 407static int
408req_invoke (eio_req *req)
273{ 409{
274 fd_set rfd; 410 if (req->flags & FLAG_SV2_RO_OFF)
411 SvREADONLY_off (req->sv2);
275 412
276 while (nreqs) 413 if (!EIO_CANCELLED (req) && req->callback)
277 { 414 {
278 int size;
279#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
280 pthread_mutex_lock (&reslock);
281#endif
282 size = res_queue.size;
283#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
284 pthread_mutex_unlock (&reslock);
285#endif
286
287 if (size)
288 return;
289
290 FD_ZERO(&rfd);
291 FD_SET(respipe [0], &rfd);
292
293 select (respipe [0] + 1, &rfd, 0, 0, 0);
294 }
295}
296
297static void req_invoke (aio_req req)
298{
299 dSP; 415 dSP;
300 416 static SV *sv_result_cache; /* caches the result integer SV */
301 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 417 SV *sv_result;
302 {
303 errno = req->errorno;
304 418
305 ENTER; 419 ENTER;
306 SAVETMPS; 420 SAVETMPS;
307 PUSHMARK (SP); 421 PUSHMARK (SP);
308 EXTEND (SP, 1); 422 EXTEND (SP, 1);
309 423
424 /* do not recreate the result IV from scratch each time */
425 if (expect_true (sv_result_cache))
426 {
427 sv_result = sv_result_cache; sv_result_cache = 0;
428 SvIV_set (sv_result, req->result);
429 SvIOK_only (sv_result);
430 }
431 else
432 {
433 sv_result = newSViv (req->result);
434 SvREADONLY_on (sv_result);
435 }
436
310 switch (req->type) 437 switch (req->type)
311 { 438 {
439 case EIO_WD_OPEN:
440 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
441 break;
442
312 case REQ_READDIR: 443 case EIO_READDIR:
313 { 444 {
314 SV *rv = &PL_sv_undef; 445 SV *rv = &PL_sv_undef;
315 446
316 if (req->result >= 0) 447 if (req->result >= 0)
317 { 448 {
449 int i;
318 char *buf = req->data2ptr; 450 char *names = (char *)req->ptr2;
451 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
319 AV *av = newAV (); 452 AV *av = newAV ();
320 453
321 while (req->result) 454 av_extend (av, req->result - 1);
455
456 for (i = 0; i < req->result; ++i)
322 { 457 {
458 if (req->int1 & EIO_READDIR_DENTS)
459 {
460 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
461
462 if (req->int1 & EIO_READDIR_CUSTOM2)
463 {
464 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
465 AV *avent = newAV ();
466
467 av_extend (avent, 2);
468
469 if (!sv_type [ent->type])
470 {
471 sv_type [ent->type] = newSViv (ent->type);
472 SvREADONLY_on (sv_type [ent->type]);
473 }
474
475 av_store (avent, 0, namesv);
476 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
477 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
478
479 av_store (av, i, newRV_noinc ((SV *)avent));
480 }
481 else
482 av_store (av, i, namesv);
483
484 ++ent;
485 }
486 else
487 {
323 SV *sv = newSVpv (buf, 0); 488 SV *name = newSVpv (names, 0);
324
325 av_push (av, sv); 489 av_store (av, i, name);
326 buf += SvCUR (sv) + 1; 490 names += SvCUR (name) + 1;
327 req->result--; 491 }
328 } 492 }
329 493
330 rv = sv_2mortal (newRV_noinc ((SV *)av)); 494 rv = sv_2mortal (newRV_noinc ((SV *)av));
331 } 495 }
332 496
333 PUSHs (rv); 497 PUSHs (rv);
498
499 if (req->int1 & EIO_READDIR_CUSTOM1)
500 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
334 } 501 }
335 break; 502 break;
336 503
337 case REQ_OPEN: 504 case EIO_OPEN:
505 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
506 break;
507
508 case EIO_STATVFS:
509 case EIO_FSTATVFS:
338 { 510 {
339 /* convert fd to fh */ 511 SV *rv = &PL_sv_undef;
340 SV *fh; 512
513#ifndef _WIN32
514 if (req->result >= 0)
515 {
516 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
517 HV *hv = newHV ();
518 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
519 * chooses to make it a struct.
520 */
521 unsigned long fsid = 0;
522 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
341 523
342 PUSHs (sv_2mortal (newSViv (req->result))); 524 rv = sv_2mortal (newRV_noinc ((SV *)hv));
343 PUTBACK;
344 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
345 SPAGAIN;
346 525
347 fh = SvREFCNT_inc (POPs); 526 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
527 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
528 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
529 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
530 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
531 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
532 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
533 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
534 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
535 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
536 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
537 }
538#endif
348 539
349 PUSHMARK (SP); 540 PUSHs (rv);
350 XPUSHs (sv_2mortal (fh));
351 } 541 }
542
352 break; 543 break;
353 544
354 case REQ_GROUP: 545 case EIO_GROUP:
355 req->fd = 2; /* mark group as finished */ 546 req->int1 = 2; /* mark group as finished */
356 547
357 if (req->data) 548 if (req->sv1)
358 { 549 {
359 int i; 550 int i;
360 AV *av = (AV *)req->data; 551 AV *av = (AV *)req->sv1;
361 552
362 EXTEND (SP, AvFILL (av) + 1); 553 EXTEND (SP, AvFILL (av) + 1);
363 for (i = 0; i <= AvFILL (av); ++i) 554 for (i = 0; i <= AvFILL (av); ++i)
364 PUSHs (*av_fetch (av, i, 0)); 555 PUSHs (*av_fetch (av, i, 0));
365 } 556 }
366 break; 557 break;
367 558
368 case REQ_NOP: 559 case EIO_NOP:
369 case REQ_BUSY: 560 case EIO_BUSY:
370 break; 561 break;
371 562
563 case EIO_READLINK:
564 case EIO_REALPATH:
565 if (req->result > 0)
566 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
567 break;
568
569 case EIO_STAT:
570 case EIO_LSTAT:
571 case EIO_FSTAT:
572 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
573
574 if (!(PL_laststatval = req->result))
575 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
576 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
577
578 PUSHs (sv_result);
579 break;
580
581 case EIO_SEEK:
582 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
583 break;
584
585 case EIO_READ:
586 {
587 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
588 *SvEND (req->sv2) = 0;
589 SvPOK_only (req->sv2);
590 SvSETMAGIC (req->sv2);
591 PUSHs (sv_result);
592 }
593 break;
594
595 case EIO_CUSTOM:
596 if (req->feed == fiemap)
597 {
598#if HAVE_FIEMAP
599 if (!req->result)
600 {
601 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
602
603 if (fiemap->fm_extent_count)
604 {
605 AV *av = newAV ();
606 int i;
607
608 while (fiemap->fm_mapped_extents)
609 {
610 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
611 AV *ext_av = newAV ();
612
613 av_store (ext_av, 3, newSVuv (extent->fe_flags));
614 av_store (ext_av, 2, newSVval64 (extent->fe_length));
615 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
616 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
617
618 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
619 }
620
621 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
622 }
623 else
624 {
625 SvIV_set (sv_result, fiemap->fm_mapped_extents);
626 PUSHs (sv_result);
627 }
628 }
629#endif
630 }
631 else
632 PUSHs (sv_result);
633 break;
634
635 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
636 if (req->result > 0)
637 SvIV_set (sv_result, 0);
638 /* FALLTHROUGH */
639
372 default: 640 default:
373 PUSHs (sv_2mortal (newSViv (req->result))); 641 PUSHs (sv_result);
374 break; 642 break;
375 } 643 }
376 644
645 errno = req->errorno;
377 646
378 PUTBACK; 647 PUTBACK;
379 call_sv (req->callback, G_VOID | G_EVAL); 648 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
380 SPAGAIN; 649 SPAGAIN;
650
651 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
652 SvREFCNT_dec (sv_result);
653 else
654 sv_result_cache = sv_result;
381 655
382 FREETMPS; 656 FREETMPS;
383 LEAVE; 657 LEAVE;
658
659 PUTBACK;
384 } 660 }
385 661
386 if (req->grp) 662 return !!SvTRUE (ERRSV);
387 {
388 aio_req grp = req->grp;
389
390 /* unlink request */
391 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
392 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
393
394 if (grp->grp_first == req)
395 grp->grp_first = req->grp_next;
396
397 aio_grp_dec (grp);
398 }
399
400 if (SvTRUE (ERRSV))
401 {
402 req_free (req);
403 croak (0);
404 }
405} 663}
406 664
407static void req_free (aio_req req) 665static void
666req_destroy (aio_req req)
408{ 667{
409 if (req->self) 668 if (req->self)
410 { 669 {
411 sv_unmagic (req->self, PERL_MAGIC_ext); 670 sv_unmagic (req->self, PERL_MAGIC_ext);
412 SvREFCNT_dec (req->self); 671 SvREFCNT_dec (req->self);
413 } 672 }
414 673
415 SvREFCNT_dec (req->data);
416 SvREFCNT_dec (req->fh); 674 SvREFCNT_dec (req->sv1);
417 SvREFCNT_dec (req->fh2); 675 SvREFCNT_dec (req->sv2);
676 SvREFCNT_dec (req->sv3);
677 SvREFCNT_dec (req->sv4);
418 SvREFCNT_dec (req->callback); 678 SvREFCNT_dec (req->callback);
419 Safefree (req->statdata);
420 679
421 if (req->type == REQ_READDIR && req->result >= 0)
422 free (req->data2ptr);
423
424 Safefree (req); 680 free (req);
425} 681}
426 682
427static void req_cancel (aio_req req) 683static void
684req_cancel_subs (aio_req grp)
428{ 685{
429 req->flags |= FLAG_CANCELLED;
430
431 if (req->type == REQ_GROUP) 686 if (grp->type != EIO_GROUP)
687 return;
688
689 SvREFCNT_dec (grp->sv2);
690 grp->sv2 = 0;
691
692 eio_grp_cancel (grp);
693}
694
695static void ecb_cold
696create_respipe (void)
697{
698 if (s_epipe_renew (&respipe))
699 croak ("IO::AIO: unable to initialize result pipe");
700}
701
702static void
703poll_wait (void)
704{
705 while (eio_nreqs ())
432 { 706 {
433 aio_req sub; 707 int size;
434 708
435 for (sub = req->grp_first; sub; sub = sub->grp_next) 709 X_LOCK (EIO_POOL->reslock);
436 req_cancel (sub); 710 size = EIO_POOL->res_queue.size;
711 X_UNLOCK (EIO_POOL->reslock);
712
713 if (size)
714 return;
715
716 etp_maybe_start_thread (EIO_POOL);
717
718 s_epipe_wait (&respipe);
437 } 719 }
438} 720}
439 721
440static int poll_cb () 722static int
723poll_cb (void)
441{ 724{
442 dSP;
443 int count = 0;
444 int do_croak = 0;
445 aio_req req;
446
447 for (;;) 725 for (;;)
448 { 726 {
449 pthread_mutex_lock (&reslock); 727 int res = eio_poll ();
450 req = reqq_shift (&res_queue);
451 728
452 if (req) 729 if (res > 0)
730 croak (0);
731
732 if (!max_outstanding || max_outstanding > eio_nreqs ())
733 return res;
734
735 poll_wait ();
736 }
737}
738
739static void ecb_cold
740reinit (void)
741{
742 create_respipe ();
743
744 if (eio_init (want_poll, done_poll) < 0)
745 croak ("IO::AIO: unable to initialise eio library");
746}
747
748/*****************************************************************************/
749
750#if !_POSIX_MAPPED_FILES
751# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752# define munmap(addr,length) EIO_ENOSYS ()
753#endif
754
755#if !_POSIX_MEMORY_PROTECTION
756# define mprotect(addr,len,prot) EIO_ENOSYS ()
757#endif
758
759#define MMAP_MAGIC PERL_MAGIC_ext
760
761static int ecb_cold
762mmap_free (pTHX_ SV *sv, MAGIC *mg)
763{
764 int old_errno = errno;
765 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766 errno = old_errno;
767
768 mg->mg_obj = 0; /* just in case */
769
770 SvREADONLY_off (sv);
771
772 if (SvPVX (sv) != mg->mg_ptr)
773 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775 SvCUR_set (sv, 0);
776 SvPVX (sv) = 0;
777 SvOK_off (sv);
778
779 return 0;
780}
781
782static MGVTBL mmap_vtbl = {
783 0, 0, 0, 0, mmap_free
784};
785
786/*****************************************************************************/
787
788static SV *
789get_cb (SV *cb_sv)
790{
791 SvGETMAGIC (cb_sv);
792 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793}
794
795static aio_req ecb_noinline
796dreq (SV *callback)
797{
798 SV *cb_cv;
799 aio_req req;
800 int req_pri = next_pri;
801 next_pri = EIO_PRI_DEFAULT;
802
803 cb_cv = get_cb (callback);
804
805 req = calloc (sizeof (*req), 1);
806 if (!req)
807 croak ("out of memory during eio_req allocation");
808
809 req->callback = SvREFCNT_inc (cb_cv);
810 req->pri = req_pri;
811
812 return req;
813}
814
815#define dREQ \
816 aio_req req = dreq (callback); \
817
818#define REQ_SEND \
819 PUTBACK; \
820 req_submit (req); \
821 SPAGAIN; \
822 \
823 if (GIMME_V != G_VOID) \
824 XPUSHs (req_sv (req, aio_req_stash));
825
826ecb_inline void
827req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
828{
829 if (expect_false (SvROK (path)))
830 {
831 SV *rv = SvRV (path);
832 SV *wdob;
833
834 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
453 { 835 {
454 if (!res_queue.size) 836 path = AvARRAY (rv)[1];
837 wdob = AvARRAY (rv)[0];
838
839 if (SvOK (wdob))
455 { 840 {
456 /* read any signals sent by the worker threads */ 841 *wd = SvAIO_WD (wdob);
457 char buf [32]; 842 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
458 while (read (respipe [0], buf, 32) == 32)
459 ;
460 } 843 }
844 else
845 *wd = EIO_INVALID_WD;
461 } 846 }
462 847 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
463 pthread_mutex_unlock (&reslock);
464
465 if (!req)
466 break;
467
468 --nreqs;
469
470 if (req->type == REQ_QUIT)
471 started--;
472 else if (req->type == REQ_GROUP && req->length)
473 { 848 {
474 req->fd = 1; /* mark request as delayed */ 849 *wd = (aio_wd)(long)SvIVX (rv);
475 continue; 850 *wdsv = SvREFCNT_inc_NN (rv);
851 *ptr = ".";
852 return; /* path set to "." */
476 } 853 }
477 else 854 else
478 { 855 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
479 if (req->type == REQ_READ)
480 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
481
482 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
483 SvREADONLY_off (req->data);
484
485 if (req->statdata)
486 {
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result;
489 PL_statcache = *(req->statdata);
490 }
491
492 req_invoke (req);
493
494 count++;
495 }
496
497 req_free (req);
498 } 856 }
499 857
500 return count; 858 *pathsv = newSVsv (path);
859 *ptr = SvPVbyte_nolen (*pathsv);
501} 860}
502 861
503static void *aio_proc(void *arg); 862static void ecb_noinline
504 863req_set_path1 (aio_req req, SV *path)
505static void start_thread (void)
506{ 864{
507 sigset_t fullsigset, oldsigset; 865 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
508 pthread_t tid;
509 pthread_attr_t attr;
510
511 pthread_attr_init (&attr);
512 pthread_attr_setstacksize (&attr, STACKSIZE);
513 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
514
515 sigfillset (&fullsigset);
516 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
517
518 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
519 started++;
520
521 sigprocmask (SIG_SETMASK, &oldsigset, 0);
522} 866}
523 867
524static void req_send (aio_req req) 868static void ecb_noinline
869req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
525{ 870{
526 while (started < wanted && nreqs >= started) 871 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
527 start_thread ();
528 872
529 ++nreqs; 873 switch (SvTYPE (rv))
530
531 pthread_mutex_lock (&reqlock);
532 reqq_push (&req_queue, req);
533 pthread_cond_signal (&reqwait);
534 pthread_mutex_unlock (&reqlock);
535
536 if (nreqs > max_outstanding)
537 for (;;)
538 {
539 poll_cb ();
540
541 if (nreqs <= max_outstanding)
542 break;
543
544 poll_wait ();
545 }
546}
547
548static void end_thread (void)
549{
550 aio_req req;
551
552 Newz (0, req, 1, aio_cb);
553
554 req->type = REQ_QUIT;
555 req->pri = PRI_MAX + PRI_BIAS;
556
557 req_send (req);
558}
559
560static void min_parallel (int nthreads)
561{
562 if (wanted < nthreads)
563 wanted = nthreads;
564}
565
566static void max_parallel (int nthreads)
567{
568 int cur = started;
569
570 if (wanted > nthreads)
571 wanted = nthreads;
572
573 while (cur > wanted)
574 { 874 {
575 end_thread (); 875 case SVt_PVIO:
576 cur--; 876 case SVt_PVLV:
877 case SVt_PVGV:
878 req->type = type_fh;
879 req->sv1 = newSVsv (fh_or_path);
880 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
881 break;
882
883 default:
884 req->type = type_path;
885 req_set_path1 (req, fh_or_path);
886 break;
577 } 887 }
578
579 while (started > wanted)
580 {
581 poll_wait ();
582 poll_cb ();
583 }
584} 888}
585 889
586static void create_pipe () 890XS(boot_IO__AIO) ecb_cold;
587{
588 if (pipe (respipe))
589 croak ("unable to initialize result pipe");
590 891
591 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 892MODULE = IO::AIO PACKAGE = IO::AIO
592 croak ("cannot set result pipe to nonblocking mode");
593 893
594 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 894PROTOTYPES: ENABLE
595 croak ("cannot set result pipe to nonblocking mode");
596}
597 895
598/*****************************************************************************/ 896BOOT:
599/* work around various missing functions */
600
601#if !HAVE_PREADWRITE
602# define pread aio_pread
603# define pwrite aio_pwrite
604
605/*
606 * make our pread/pwrite safe against themselves, but not against
607 * normal read/write by using a mutex. slows down execution a lot,
608 * but that's your problem, not mine.
609 */
610static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
611
612static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
613{ 897{
614 ssize_t res; 898 static const struct {
615 off_t ooffset; 899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
616 905
617 pthread_mutex_lock (&preadwritelock); 906 /* you have to re-run ./gendef0 after adding/removing any constants here */
618 ooffset = lseek (fd, 0, SEEK_CUR); 907 /* the first block can be undef if missing */
619 lseek (fd, offset, SEEK_SET); 908 const_iv (ENOSYS)
620 res = read (fd, buf, count); 909 const_iv (EXDEV)
621 lseek (fd, ooffset, SEEK_SET); 910 const_iv (EBADR)
622 pthread_mutex_unlock (&preadwritelock);
623 911
624 return res; 912 /* for lseek */
625} 913 const_iv (SEEK_DATA)
914 const_iv (SEEK_HOLE)
626 915
627static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 916 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
628{ 917 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
629 ssize_t res; 918 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
630 off_t ooffset; 919 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
920 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
921 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
631 922
632 pthread_mutex_lock (&preadwritelock); 923 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
633 ooffset = lseek (fd, 0, SEEK_CUR); 924 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
634 lseek (fd, offset, SEEK_SET); 925 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
635 res = write (fd, buf, count); 926 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
636 lseek (fd, offset, SEEK_SET); 927 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
637 pthread_mutex_unlock (&preadwritelock); 928 const_niv (MADV_FREE , POSIX_MADV_FREE)
638 929
639 return res; 930 /* the second block will be 0 when missing */
640} 931 const_iv (O_RDONLY)
641#endif 932 const_iv (O_WRONLY)
933 const_iv (O_RDWR)
934 const_iv (O_CREAT)
935 const_iv (O_TRUNC)
936 const_iv (O_EXCL)
937 const_iv (O_APPEND)
642 938
643#if !HAVE_FDATASYNC 939 const_iv (O_ASYNC)
644# define fdatasync fsync 940 const_iv (O_DIRECT)
645#endif 941 const_iv (O_NOATIME)
646 942
647#if !HAVE_READAHEAD 943 const_iv (O_CLOEXEC)
648# define readahead aio_readahead 944 const_iv (O_NOCTTY)
945 const_iv (O_NOFOLLOW)
946 const_iv (O_NONBLOCK)
947 const_iv (O_EXEC)
948 const_iv (O_SEARCH)
949 const_iv (O_DIRECTORY)
950 const_iv (O_DSYNC)
951 const_iv (O_RSYNC)
952 const_iv (O_SYNC)
953 const_iv (O_PATH)
954 const_iv (O_TMPFILE)
955 const_iv (O_TTY_INIT)
649 956
650static ssize_t readahead (int fd, off_t offset, size_t count) 957 const_iv (S_IFIFO)
651{ 958 const_iv (S_IFCHR)
652 dBUF; 959 const_iv (S_IFBLK)
960 const_iv (S_IFLNK)
961 const_iv (S_IFREG)
962 const_iv (S_IFDIR)
963 const_iv (S_IFWHT)
964 const_iv (S_IFSOCK)
965 const_iv (S_IFMT)
653 966
654 while (count > 0) 967 const_iv (ST_RDONLY)
655 { 968 const_iv (ST_NOSUID)
656 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 969 const_iv (ST_NODEV)
970 const_iv (ST_NOEXEC)
971 const_iv (ST_SYNCHRONOUS)
972 const_iv (ST_MANDLOCK)
973 const_iv (ST_WRITE)
974 const_iv (ST_APPEND)
975 const_iv (ST_IMMUTABLE)
976 const_iv (ST_NOATIME)
977 const_iv (ST_NODIRATIME)
978 const_iv (ST_RELATIME)
657 979
658 pread (fd, aio_buf, len, offset); 980 const_iv (PROT_NONE)
659 offset += len; 981 const_iv (PROT_EXEC)
660 count -= len; 982 const_iv (PROT_READ)
661 } 983 const_iv (PROT_WRITE)
662 984
663 fBUF; 985 const_iv (MAP_PRIVATE)
986 const_iv (MAP_SHARED)
987 const_iv (MAP_FIXED)
988 const_iv (MAP_ANONYMOUS)
664 989
665 errno = 0; 990 /* linuxish */
666} 991 const_iv (MAP_LOCKED)
667#endif 992 const_iv (MAP_NORESERVE)
993 const_iv (MAP_POPULATE)
994 const_iv (MAP_NONBLOCK)
995 const_iv (MAP_GROWSDOWN)
996 const_iv (MAP_32BIT)
997 const_iv (MAP_HUGETLB)
998 const_iv (MAP_STACK)
668 999
669#if !HAVE_READDIR_R 1000 const_iv (FIEMAP_FLAG_SYNC)
670# define readdir_r aio_readdir_r 1001 const_iv (FIEMAP_FLAG_XATTR)
1002 const_iv (FIEMAP_FLAGS_COMPAT)
1003 const_iv (FIEMAP_EXTENT_LAST)
1004 const_iv (FIEMAP_EXTENT_UNKNOWN)
1005 const_iv (FIEMAP_EXTENT_DELALLOC)
1006 const_iv (FIEMAP_EXTENT_ENCODED)
1007 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1008 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1009 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1010 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1011 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1012 const_iv (FIEMAP_EXTENT_MERGED)
1013 const_iv (FIEMAP_EXTENT_SHARED)
671 1014
672static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1015 const_iv (SPLICE_F_MOVE)
673 1016 const_iv (SPLICE_F_NONBLOCK)
674static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1017 const_iv (SPLICE_F_MORE)
675{ 1018 const_iv (SPLICE_F_GIFT)
676 struct dirent *e;
677 int errorno;
678 1019
679 pthread_mutex_lock (&readdirlock); 1020 /* these are libeio constants, and are independent of gendef0 */
1021 const_eio (SEEK_SET)
1022 const_eio (SEEK_CUR)
1023 const_eio (SEEK_END)
680 1024
681 e = readdir (dirp); 1025 const_eio (MCL_FUTURE)
682 errorno = errno; 1026 const_eio (MCL_CURRENT)
683 1027
684 if (e) 1028 const_eio (MS_ASYNC)
685 { 1029 const_eio (MS_INVALIDATE)
686 *res = ent; 1030 const_eio (MS_SYNC)
687 strcpy (ent->d_name, e->d_name);
688 }
689 else
690 *res = 0;
691 1031
692 pthread_mutex_unlock (&readdirlock); 1032 const_eio (MT_MODIFY)
693 1033
694 errno = errorno; 1034 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
695 return e ? 0 : -1; 1035 const_eio (SYNC_FILE_RANGE_WRITE)
696} 1036 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
697#endif
698 1037
699/* sendfile always needs emulation */ 1038 const_eio (FALLOC_FL_KEEP_SIZE)
700static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1039 const_eio (FALLOC_FL_PUNCH_HOLE)
701{ 1040 const_eio (FALLOC_FL_COLLAPSE_RANGE)
702 ssize_t res; 1041 const_eio (FALLOC_FL_ZERO_RANGE)
703 1042
704 if (!count) 1043 const_eio (READDIR_DENTS)
705 return 0; 1044 const_eio (READDIR_DIRS_FIRST)
1045 const_eio (READDIR_STAT_ORDER)
1046 const_eio (READDIR_FOUND_UNKNOWN)
706 1047
707#if HAVE_SENDFILE 1048 const_eio (DT_UNKNOWN)
708# if __linux 1049 const_eio (DT_FIFO)
709 res = sendfile (ofd, ifd, &offset, count); 1050 const_eio (DT_CHR)
710 1051 const_eio (DT_DIR)
711# elif __freebsd 1052 const_eio (DT_BLK)
712 /* 1053 const_eio (DT_REG)
713 * Of course, the freebsd sendfile is a dire hack with no thoughts 1054 const_eio (DT_LNK)
714 * wasted on making it similar to other I/O functions. 1055 const_eio (DT_SOCK)
715 */ 1056 const_eio (DT_WHT)
716 {
717 off_t sbytes;
718 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
719
720 if (res < 0 && sbytes)
721 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
722 res = sbytes;
723 } 1057 };
724 1058
725# elif __hpux 1059 aio_stash = gv_stashpv ("IO::AIO" , 1);
726 res = sendfile (ofd, ifd, offset, count, 0, 0); 1060 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1061 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1062 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
727 1063
728# elif __solaris 1064 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
729 { 1065 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
730 struct sendfilevec vec;
731 size_t sbytes;
732 1066
733 vec.sfv_fd = ifd; 1067 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
734 vec.sfv_flag = 0;
735 vec.sfv_off = offset;
736 vec.sfv_len = count;
737 1068
738 res = sendfilev (ofd, &vec, 1, &sbytes); 1069 reinit ();
1070}
739 1071
740 if (res < 0 && sbytes) 1072void
1073reinit ()
1074 PROTOTYPE:
1075
1076void
1077max_poll_reqs (unsigned int nreqs)
1078 PROTOTYPE: $
1079 CODE:
1080 eio_set_max_poll_reqs (nreqs);
1081
1082void
1083max_poll_time (double nseconds)
1084 PROTOTYPE: $
1085 CODE:
1086 eio_set_max_poll_time (nseconds);
1087
1088void
1089min_parallel (unsigned int nthreads)
1090 PROTOTYPE: $
1091 CODE:
1092 eio_set_min_parallel (nthreads);
1093
1094void
1095max_parallel (unsigned int nthreads)
1096 PROTOTYPE: $
1097 CODE:
1098 eio_set_max_parallel (nthreads);
1099
1100void
1101max_idle (unsigned int nthreads)
1102 PROTOTYPE: $
1103 CODE:
1104 eio_set_max_idle (nthreads);
1105
1106void
1107idle_timeout (unsigned int seconds)
1108 PROTOTYPE: $
1109 CODE:
1110 eio_set_idle_timeout (seconds);
1111
1112void
1113max_outstanding (unsigned int maxreqs)
1114 PROTOTYPE: $
1115 CODE:
1116 max_outstanding = maxreqs;
1117
1118void
1119aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1120 PPCODE:
1121{
1122 dREQ;
1123
1124 req->type = EIO_WD_OPEN;
1125 req_set_path1 (req, pathname);
1126
1127 REQ_SEND;
1128}
1129
1130void
1131aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1132 PPCODE:
1133{
1134 dREQ;
1135
1136 req->type = EIO_OPEN;
1137 req_set_path1 (req, pathname);
1138 req->int1 = flags;
1139 req->int2 = mode;
1140
1141 REQ_SEND;
1142}
1143
1144void
1145aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1146 ALIAS:
1147 aio_fsync = EIO_FSYNC
1148 aio_fdatasync = EIO_FDATASYNC
1149 aio_syncfs = EIO_SYNCFS
1150 PPCODE:
1151{
1152 int fd = s_fileno_croak (fh, 0);
1153 dREQ;
1154
1155 req->type = ix;
1156 req->sv1 = newSVsv (fh);
1157 req->int1 = fd;
1158
1159 REQ_SEND;
1160}
1161
1162void
1163aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1164 PPCODE:
1165{
1166 int fd = s_fileno_croak (fh, 0);
1167 dREQ;
1168
1169 req->type = EIO_SYNC_FILE_RANGE;
1170 req->sv1 = newSVsv (fh);
1171 req->int1 = fd;
1172 req->offs = offset;
741 res = sbytes; 1173 req->size = nbytes;
742 } 1174 req->int2 = flags;
743 1175
744# endif 1176 REQ_SEND;
1177}
1178
1179void
1180aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1181 PPCODE:
1182{
1183 int fd = s_fileno_croak (fh, 0);
1184 dREQ;
1185
1186 req->type = EIO_FALLOCATE;
1187 req->sv1 = newSVsv (fh);
1188 req->int1 = fd;
1189 req->int2 = mode;
1190 req->offs = offset;
1191 req->size = len;
1192
1193 REQ_SEND;
1194}
1195
1196void
1197aio_close (SV *fh, SV *callback = &PL_sv_undef)
1198 PPCODE:
1199{
1200 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1201 int fd = s_fileno_croak (fh, 0);
1202 dREQ;
1203
1204 if (expect_false (close_fd < 0))
1205 {
1206 int pipefd [2];
1207
1208 if (
1209#ifdef _WIN32
1210 _pipe (pipefd, 1, _O_BINARY) < 0
745#else 1211#else
746 res = -1; 1212 pipe (pipefd) < 0
747 errno = ENOSYS; 1213 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
748#endif 1214#endif
749 1215 || close (pipefd [1]) < 0
750 if (res < 0
751 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
752#if __solaris
753 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
754#endif
755 )
756 )
757 {
758 /* emulate sendfile. this is a major pain in the ass */
759 dBUF;
760
761 res = 0;
762
763 while (count)
764 {
765 ssize_t cnt;
766
767 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
768
769 if (cnt <= 0)
770 { 1216 )
771 if (cnt && !res) res = -1; 1217 abort (); /*D*/
772 break;
773 }
774 1218
775 cnt = write (ofd, aio_buf, cnt); 1219 close_fd = pipefd [0];
776
777 if (cnt <= 0)
778 {
779 if (cnt && !res) res = -1;
780 break;
781 }
782
783 offset += cnt;
784 res += cnt;
785 count -= cnt;
786 }
787
788 fBUF;
789 }
790
791 return res;
792}
793
794/* read a full directory */
795static int scandir_ (const char *path, void **namesp)
796{
797 DIR *dirp;
798 union
799 {
800 struct dirent d;
801 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
802 } *u;
803 struct dirent *entp;
804 char *name, *names;
805 int memlen = 4096;
806 int memofs = 0;
807 int res = 0;
808 int errorno;
809
810 dirp = opendir (path);
811 if (!dirp)
812 return -1;
813
814 u = malloc (sizeof (*u));
815 names = malloc (memlen);
816
817 if (u && names)
818 for (;;)
819 {
820 errno = 0;
821 readdir_r (dirp, &u->d, &entp);
822
823 if (!entp)
824 break;
825
826 name = entp->d_name;
827
828 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
829 {
830 int len = strlen (name) + 1;
831
832 res++;
833
834 while (memofs + len > memlen)
835 {
836 memlen *= 2;
837 names = realloc (names, memlen);
838 if (!names)
839 break;
840 }
841
842 memcpy (names + memofs, name, len);
843 memofs += len;
844 } 1220 }
845 }
846 1221
847 errorno = errno; 1222 req->type = EIO_DUP2;
848 free (u); 1223 req->int1 = close_fd;
849 closedir (dirp); 1224 req->sv2 = newSVsv (fh);
1225 req->int2 = fd;
850 1226
851 if (errorno) 1227 REQ_SEND;
852 {
853 free (names);
854 errno = errorno;
855 res = -1;
856 }
857
858 *namesp = (void *)names;
859 return res;
860} 1228}
861 1229
862/*****************************************************************************/
863
864static void *aio_proc (void *thr_arg)
865{
866 aio_req req;
867 int type;
868
869 do
870 {
871 pthread_mutex_lock (&reqlock);
872
873 for (;;)
874 {
875 req = reqq_shift (&req_queue);
876
877 if (req)
878 break;
879
880 pthread_cond_wait (&reqwait, &reqlock);
881 }
882
883 pthread_mutex_unlock (&reqlock);
884
885 errno = 0; /* strictly unnecessary */
886 type = req->type; /* remember type for QUIT check */
887
888 if (!(req->flags & FLAG_CANCELLED))
889 switch (type)
890 {
891 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
892 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
893
894 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
895 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
896
897 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
898 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
899 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
900
901 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
902 case REQ_CLOSE: req->result = close (req->fd); break;
903 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
904 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
905 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
906 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
907 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
908
909 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
910 case REQ_FSYNC: req->result = fsync (req->fd); break;
911 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
912
913 case REQ_BUSY:
914 {
915 struct timeval tv;
916
917 tv.tv_sec = req->fd;
918 tv.tv_usec = req->fd2;
919
920 req->result = select (0, 0, 0, 0, &tv);
921 }
922
923 case REQ_GROUP:
924 case REQ_NOP:
925 case REQ_QUIT:
926 break;
927
928 default:
929 req->result = ENOSYS;
930 break;
931 }
932
933 req->errorno = errno;
934
935 pthread_mutex_lock (&reslock);
936
937 if (!reqq_push (&res_queue, req))
938 /* write a dummy byte to the pipe so fh becomes ready */
939 write (respipe [1], &respipe, 1);
940
941 pthread_mutex_unlock (&reslock);
942 }
943 while (type != REQ_QUIT);
944
945 return 0;
946}
947
948/*****************************************************************************/
949
950static void atfork_prepare (void)
951{
952 pthread_mutex_lock (&reqlock);
953 pthread_mutex_lock (&reslock);
954#if !HAVE_PREADWRITE
955 pthread_mutex_lock (&preadwritelock);
956#endif
957#if !HAVE_READDIR_R
958 pthread_mutex_lock (&readdirlock);
959#endif
960}
961
962static void atfork_parent (void)
963{
964#if !HAVE_READDIR_R
965 pthread_mutex_unlock (&readdirlock);
966#endif
967#if !HAVE_PREADWRITE
968 pthread_mutex_unlock (&preadwritelock);
969#endif
970 pthread_mutex_unlock (&reslock);
971 pthread_mutex_unlock (&reqlock);
972}
973
974static void atfork_child (void)
975{
976 aio_req prv;
977
978 started = 0;
979
980 while (prv = reqq_shift (&req_queue))
981 req_free (prv);
982
983 while (prv = reqq_shift (&res_queue))
984 req_free (prv);
985
986 close (respipe [0]);
987 close (respipe [1]);
988 create_pipe ();
989
990 atfork_parent ();
991}
992
993#define dREQ \
994 aio_req req; \
995 int req_pri = next_pri; \
996 next_pri = DEFAULT_PRI + PRI_BIAS; \
997 \
998 if (SvOK (callback) && !SvROK (callback)) \
999 croak ("callback must be undef or of reference type"); \
1000 \
1001 Newz (0, req, 1, aio_cb); \
1002 if (!req) \
1003 croak ("out of memory during aio_req allocation"); \
1004 \
1005 req->callback = newSVsv (callback); \
1006 req->pri = req_pri
1007
1008#define REQ_SEND \
1009 req_send (req); \
1010 \
1011 if (GIMME_V != G_VOID) \
1012 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1013
1014MODULE = IO::AIO PACKAGE = IO::AIO
1015
1016PROTOTYPES: ENABLE
1017
1018BOOT:
1019{
1020 HV *stash = gv_stashpv ("IO::AIO", 1);
1021 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1022 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1023 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1024
1025 create_pipe ();
1026 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1027}
1028
1029void 1230void
1030min_parallel (nthreads) 1231aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1031 int nthreads
1032 PROTOTYPE: $
1033
1034void
1035max_parallel (nthreads)
1036 int nthreads
1037 PROTOTYPE: $
1038
1039int
1040max_outstanding (nreqs)
1041 int nreqs
1042 PROTOTYPE: $
1043 CODE: 1232 PPCODE:
1044 RETVAL = max_outstanding;
1045 max_outstanding = nreqs;
1046
1047void
1048aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1049 SV * pathname
1050 int flags
1051 int mode
1052 SV * callback
1053 PROTOTYPE: $$$;$
1054 PPCODE:
1055{ 1233{
1234 int fd = s_fileno_croak (fh, 0);
1056 dREQ; 1235 dREQ;
1057 1236
1058 req->type = REQ_OPEN; 1237 req->type = EIO_SEEK;
1059 req->data = newSVsv (pathname); 1238 req->sv1 = newSVsv (fh);
1060 req->dataptr = SvPVbyte_nolen (req->data); 1239 req->int1 = fd;
1061 req->fd = flags; 1240 req->offs = SvVAL64 (offset);
1062 req->mode = mode; 1241 req->int2 = whence;
1063 1242
1064 REQ_SEND; 1243 REQ_SEND;
1065} 1244}
1066 1245
1067void 1246void
1068aio_close (fh,callback=&PL_sv_undef) 1247aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1069 SV * fh
1070 SV * callback
1071 PROTOTYPE: $;$
1072 ALIAS: 1248 ALIAS:
1073 aio_close = REQ_CLOSE
1074 aio_fsync = REQ_FSYNC
1075 aio_fdatasync = REQ_FDATASYNC
1076 PPCODE:
1077{
1078 dREQ;
1079
1080 req->type = ix;
1081 req->fh = newSVsv (fh);
1082 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1083
1084 REQ_SEND (req);
1085}
1086
1087void
1088aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1089 SV * fh
1090 UV offset
1091 UV length
1092 SV * data
1093 UV dataoffset
1094 SV * callback
1095 ALIAS:
1096 aio_read = REQ_READ 1249 aio_read = EIO_READ
1097 aio_write = REQ_WRITE 1250 aio_write = EIO_WRITE
1098 PROTOTYPE: $$$$$;$
1099 PPCODE: 1251 PPCODE:
1100{ 1252{
1101 aio_req req;
1102 STRLEN svlen; 1253 STRLEN svlen;
1254 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1103 char *svptr = SvPVbyte (data, svlen); 1255 char *svptr = SvPVbyte (data, svlen);
1104 1256 UV len = SvUV (length);
1105 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data);
1107 1257
1108 if (dataoffset < 0) 1258 if (dataoffset < 0)
1109 dataoffset += svlen; 1259 dataoffset += svlen;
1110 1260
1111 if (dataoffset < 0 || dataoffset > svlen) 1261 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("data offset outside of string"); 1262 croak ("dataoffset outside of data scalar");
1113 1263
1114 if (ix == REQ_WRITE) 1264 if (ix == EIO_WRITE)
1115 { 1265 {
1116 /* write: check length and adjust. */ 1266 /* write: check length and adjust. */
1117 if (length < 0 || length + dataoffset > svlen) 1267 if (!SvOK (length) || len + dataoffset > svlen)
1118 length = svlen - dataoffset; 1268 len = svlen - dataoffset;
1119 } 1269 }
1120 else 1270 else
1121 { 1271 {
1122 /* read: grow scalar as necessary */ 1272 /* read: check type and grow scalar as necessary */
1273 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1123 svptr = SvGROW (data, length + dataoffset); 1274 svptr = sv_grow (data, len + dataoffset + 1);
1275 else if (SvCUR (data) < len + dataoffset)
1276 croak ("length + dataoffset outside of scalar, and cannot grow");
1124 } 1277 }
1125
1126 if (length < 0)
1127 croak ("length must not be negative");
1128 1278
1129 { 1279 {
1130 dREQ; 1280 dREQ;
1131 1281
1132 req->type = ix; 1282 req->type = ix;
1133 req->fh = newSVsv (fh); 1283 req->sv1 = newSVsv (fh);
1134 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1284 req->int1 = fd;
1135 : IoOFP (sv_2io (fh))); 1285 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1136 req->offset = offset; 1286 req->size = len;
1137 req->length = length;
1138 req->data = SvREFCNT_inc (data); 1287 req->sv2 = SvREFCNT_inc (data);
1139 req->dataptr = (char *)svptr + dataoffset; 1288 req->ptr2 = (char *)svptr + dataoffset;
1289 req->stroffset = dataoffset;
1140 1290
1141 if (!SvREADONLY (data)) 1291 if (!SvREADONLY (data))
1142 { 1292 {
1143 SvREADONLY_on (data); 1293 SvREADONLY_on (data);
1144 req->data2ptr = (void *)data; 1294 req->flags |= FLAG_SV2_RO_OFF;
1145 } 1295 }
1146 1296
1147 REQ_SEND; 1297 REQ_SEND;
1148 } 1298 }
1149} 1299}
1150 1300
1151void 1301void
1152aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1302aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1153 SV * out_fh 1303 ALIAS:
1154 SV * in_fh 1304 aio_ioctl = EIO_IOCTL
1155 UV in_offset 1305 aio_fcntl = EIO_FCNTL
1156 UV length
1157 SV * callback
1158 PROTOTYPE: $$$$;$
1159 PPCODE: 1306 PPCODE:
1160{ 1307{
1161 dREQ; 1308 int fd = s_fileno_croak (fh, 0);
1309 char *svptr;
1162 1310
1163 req->type = REQ_SENDFILE; 1311 if (SvPOK (arg) || !SvNIOK (arg))
1164 req->fh = newSVsv (out_fh);
1165 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1166 req->fh2 = newSVsv (in_fh);
1167 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1168 req->offset = in_offset;
1169 req->length = length;
1170
1171 REQ_SEND;
1172}
1173
1174void
1175aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 IV length
1179 SV * callback
1180 PROTOTYPE: $$$;$
1181 PPCODE:
1182{
1183 dREQ;
1184
1185 req->type = REQ_READAHEAD;
1186 req->fh = newSVsv (fh);
1187 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1188 req->offset = offset;
1189 req->length = length;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_stat (fh_or_path,callback=&PL_sv_undef)
1196 SV * fh_or_path
1197 SV * callback
1198 ALIAS:
1199 aio_stat = REQ_STAT
1200 aio_lstat = REQ_LSTAT
1201 PPCODE:
1202{
1203 dREQ;
1204
1205 New (0, req->statdata, 1, Stat_t);
1206 if (!req->statdata)
1207 { 1312 {
1208 req_free (req); 1313 STRLEN svlen;
1209 croak ("out of memory during aio_req->statdata allocation"); 1314 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1210 } 1315#ifdef IOCPARM_LEN
1316 STRLEN need = IOCPARM_LEN (request);
1317#else
1318 STRLEN need = 256;
1319#endif
1211 1320
1212 if (SvPOK (fh_or_path)) 1321 if (svlen < need)
1213 { 1322 svptr = SvGROW (arg, need);
1214 req->type = ix;
1215 req->data = newSVsv (fh_or_path);
1216 req->dataptr = SvPVbyte_nolen (req->data);
1217 } 1323 }
1218 else 1324 else
1325 svptr = (char *)SvIV (arg);
1326
1219 { 1327 {
1328 dREQ;
1329
1220 req->type = REQ_FSTAT; 1330 req->type = ix;
1221 req->fh = newSVsv (fh_or_path); 1331 req->sv1 = newSVsv (fh);
1222 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1332 req->int1 = fd;
1333 req->int2 = (long)request;
1334 req->sv2 = SvREFCNT_inc (arg);
1335 req->ptr2 = svptr;
1336
1337 REQ_SEND;
1223 } 1338 }
1339}
1340
1341void
1342aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1343 ALIAS:
1344 aio_readlink = EIO_READLINK
1345 aio_realpath = EIO_REALPATH
1346 PPCODE:
1347{
1348 dREQ;
1349
1350 req->type = ix;
1351 req_set_path1 (req, pathname);
1224 1352
1225 REQ_SEND; 1353 REQ_SEND;
1226} 1354}
1227 1355
1228void 1356void
1229aio_unlink (pathname,callback=&PL_sv_undef) 1357aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1230 SV * pathname 1358 PPCODE:
1231 SV * callback 1359{
1360 int ifd = s_fileno_croak (in_fh , 0);
1361 int ofd = s_fileno_croak (out_fh, 1);
1362 dREQ;
1363
1364 req->type = EIO_SENDFILE;
1365 req->sv1 = newSVsv (out_fh);
1366 req->int1 = ofd;
1367 req->sv2 = newSVsv (in_fh);
1368 req->int2 = ifd;
1369 req->offs = in_offset;
1370 req->size = length;
1371
1372 REQ_SEND;
1373}
1374
1375void
1376aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1377 PPCODE:
1378{
1379 int fd = s_fileno_croak (fh, 0);
1380 dREQ;
1381
1382 req->type = EIO_READAHEAD;
1383 req->sv1 = newSVsv (fh);
1384 req->int1 = fd;
1385 req->offs = offset;
1386 req->size = length;
1387
1388 REQ_SEND;
1389}
1390
1391void
1392aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1232 ALIAS: 1393 ALIAS:
1394 aio_stat = EIO_STAT
1395 aio_lstat = EIO_LSTAT
1396 aio_statvfs = EIO_STATVFS
1397 PPCODE:
1398{
1399 dREQ;
1400
1401 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1402
1403 REQ_SEND;
1404}
1405
1406UV
1407major (UV dev)
1408 ALIAS:
1409 minor = 1
1410 CODE:
1411 RETVAL = ix ? minor (dev) : major (dev);
1412 OUTPUT:
1413 RETVAL
1414
1415UV
1416makedev (UV maj, UV min)
1417 CODE:
1418 RETVAL = makedev (maj, min);
1419 OUTPUT:
1420 RETVAL
1421
1422void
1423aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1424 PPCODE:
1425{
1426 dREQ;
1427
1428 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1429 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1430 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1431
1432 REQ_SEND;
1433}
1434
1435void
1436aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1437 PPCODE:
1438{
1439 dREQ;
1440
1441 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1442 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1443
1444 REQ_SEND;
1445}
1446
1447void
1448aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->int2 = mode;
1454 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1455
1456 REQ_SEND;
1457}
1458
1459void
1460aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1461 PPCODE:
1462{
1463 dREQ;
1464
1465 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1466 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1467 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1468
1469 REQ_SEND;
1470}
1471
1472void
1473aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1474 PPCODE:
1475{
1476 dREQ;
1477
1478 req->type = EIO_READDIR;
1479 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1480
1481 if (flags & EIO_READDIR_DENTS)
1482 req->int1 |= EIO_READDIR_CUSTOM2;
1483
1484 req_set_path1 (req, pathname);
1485
1486 REQ_SEND;
1487}
1488
1489void
1490aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1491 PPCODE:
1492{
1493 dREQ;
1494
1495 req->type = EIO_MKDIR;
1496 req->int2 = mode;
1497 req_set_path1 (req, pathname);
1498
1499 REQ_SEND;
1500}
1501
1502void
1503aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1504 ALIAS:
1233 aio_unlink = REQ_UNLINK 1505 aio_unlink = EIO_UNLINK
1234 aio_rmdir = REQ_RMDIR 1506 aio_rmdir = EIO_RMDIR
1235 aio_readdir = REQ_READDIR 1507 aio_readdir = EIO_READDIR
1236 PPCODE: 1508 PPCODE:
1237{ 1509{
1238 dREQ; 1510 dREQ;
1239 1511
1240 req->type = ix; 1512 req->type = ix;
1241 req->data = newSVsv (pathname); 1513 req_set_path1 (req, pathname);
1242 req->dataptr = SvPVbyte_nolen (req->data); 1514
1243
1244 REQ_SEND; 1515 REQ_SEND;
1245} 1516}
1246 1517
1247void 1518void
1248aio_link (oldpath,newpath,callback=&PL_sv_undef) 1519aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1249 SV * oldpath
1250 SV * newpath
1251 SV * callback
1252 ALIAS: 1520 ALIAS:
1253 aio_link = REQ_LINK 1521 aio_link = EIO_LINK
1254 aio_symlink = REQ_SYMLINK 1522 aio_symlink = EIO_SYMLINK
1255 aio_rename = REQ_RENAME 1523 aio_rename = EIO_RENAME
1256 PPCODE: 1524 PPCODE:
1257{ 1525{
1526 eio_wd wd2 = 0;
1258 dREQ; 1527 dREQ;
1259 1528
1260 req->type = ix; 1529 req->type = ix;
1261 req->fh = newSVsv (oldpath); 1530 req_set_path1 (req, oldpath);
1262 req->data2ptr = SvPVbyte_nolen (req->fh); 1531 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1263 req->data = newSVsv (newpath); 1532 req->int3 = (long)wd2;
1264 req->dataptr = SvPVbyte_nolen (req->data);
1265 1533
1266 REQ_SEND; 1534 REQ_SEND;
1267} 1535}
1268 1536
1269void 1537void
1270aio_busy (delay,callback=&PL_sv_undef) 1538aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1271 double delay
1272 SV * callback
1273 PPCODE: 1539 PPCODE:
1274{ 1540{
1275 dREQ; 1541 dREQ;
1276 1542
1277 req->type = REQ_BUSY; 1543 req->type = EIO_MKNOD;
1278 req->fd = delay < 0. ? 0 : delay; 1544 req->int2 = (mode_t)mode;
1279 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1545 req->offs = dev;
1280 1546 req_set_path1 (req, pathname);
1547
1281 REQ_SEND; 1548 REQ_SEND;
1282} 1549}
1283 1550
1284void 1551void
1285aio_group (callback=&PL_sv_undef) 1552aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1286 SV * callback 1553 ALIAS:
1287 PROTOTYPE: ;$ 1554 aio_mtouch = EIO_MTOUCH
1555 aio_msync = EIO_MSYNC
1288 PPCODE: 1556 PPCODE:
1289{ 1557{
1558 STRLEN svlen;
1559 char *svptr = SvPVbyte (data, svlen);
1560 UV len = SvUV (length);
1561
1562 if (offset < 0)
1563 offset += svlen;
1564
1565 if (offset < 0 || offset > svlen)
1566 croak ("offset outside of scalar");
1567
1568 if (!SvOK (length) || len + offset > svlen)
1569 len = svlen - offset;
1570
1571 {
1572 dREQ;
1573
1574 req->type = ix;
1575 req->sv2 = SvREFCNT_inc (data);
1576 req->ptr2 = (char *)svptr + offset;
1577 req->size = len;
1578 req->int1 = flags;
1579
1580 REQ_SEND;
1581 }
1582}
1583
1584void
1585aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1586 PPCODE:
1587{
1588 STRLEN svlen;
1589 char *svptr = SvPVbyte (data, svlen);
1590 UV len = SvUV (length);
1591
1592 if (offset < 0)
1593 offset += svlen;
1594
1595 if (offset < 0 || offset > svlen)
1596 croak ("offset outside of scalar");
1597
1598 if (!SvOK (length) || len + offset > svlen)
1599 len = svlen - offset;
1600
1601 {
1602 dREQ;
1603
1604 req->type = EIO_MLOCK;
1605 req->sv2 = SvREFCNT_inc (data);
1606 req->ptr2 = (char *)svptr + offset;
1607 req->size = len;
1608
1609 REQ_SEND;
1610 }
1611}
1612
1613void
1614aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1615 PPCODE:
1616{
1617 dREQ;
1618
1619 req->type = EIO_MLOCKALL;
1620 req->int1 = flags;
1621
1622 REQ_SEND;
1623}
1624
1625void
1626aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1627 PPCODE:
1628{
1629 int fd = s_fileno_croak (fh, 0);
1290 dREQ; 1630 dREQ;
1291 1631
1292 req->type = REQ_GROUP; 1632 req->type = EIO_CUSTOM;
1293 req_send (req); 1633 req->sv1 = newSVsv (fh);
1634 req->int1 = fd;
1294 1635
1295 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1636 req->feed = fiemap;
1296} 1637#if HAVE_FIEMAP
1638 /* keep our fingers crossed that the next two types are 64 bit */
1639 req->offs = start;
1640 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1641 req->int2 = flags;
1642 req->int3 = SvOK (count) ? SvIV (count) : -1;
1643#endif
1297 1644
1645 REQ_SEND;
1646}
1647
1298void 1648void
1299aio_nop (callback=&PL_sv_undef) 1649aio_busy (double delay, SV *callback = &PL_sv_undef)
1300 SV * callback
1301 PPCODE: 1650 PPCODE:
1302{ 1651{
1303 dREQ; 1652 dREQ;
1304 1653
1305 req->type = REQ_NOP; 1654 req->type = EIO_BUSY;
1655 req->nv1 = delay < 0. ? 0. : delay;
1306 1656
1307 REQ_SEND; 1657 REQ_SEND;
1308} 1658}
1309 1659
1310void 1660void
1311aioreq_pri (int pri = DEFAULT_PRI) 1661aio_group (SV *callback = &PL_sv_undef)
1312 CODE: 1662 PPCODE:
1663{
1664 dREQ;
1665
1666 req->type = EIO_GROUP;
1667
1668 PUTBACK;
1669 req_submit (req);
1670 SPAGAIN;
1671
1672 XPUSHs (req_sv (req, aio_grp_stash));
1673}
1674
1675void
1676aio_nop (SV *callback = &PL_sv_undef)
1677 ALIAS:
1678 aio_nop = EIO_NOP
1679 aio_sync = EIO_SYNC
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->type = ix;
1685
1686 REQ_SEND;
1687}
1688
1689int
1690aioreq_pri (int pri = NO_INIT)
1691 CODE:
1692 RETVAL = next_pri;
1693 if (items > 0)
1694 {
1313 if (pri < PRI_MIN) pri = PRI_MIN; 1695 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1314 if (pri > PRI_MAX) pri = PRI_MAX; 1696 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1315 next_pri = pri + PRI_BIAS; 1697 next_pri = pri;
1698 }
1699 OUTPUT:
1700 RETVAL
1316 1701
1317void 1702void
1318aioreq_nice (int nice = 0) 1703aioreq_nice (int nice = 0)
1319 CODE: 1704 CODE:
1320 nice = next_pri - nice; 1705 nice = next_pri - nice;
1321 if (nice < PRI_MIN) nice = PRI_MIN; 1706 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1322 if (nice > PRI_MAX) nice = PRI_MAX; 1707 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1323 next_pri = nice + PRI_BIAS; 1708 next_pri = nice;
1324 1709
1325void 1710void
1326flush () 1711flush ()
1327 PROTOTYPE:
1328 CODE: 1712 CODE:
1329 while (nreqs) 1713 while (eio_nreqs ())
1330 { 1714 {
1331 poll_wait (); 1715 poll_wait ();
1332 poll_cb (); 1716 poll_cb ();
1333 } 1717 }
1334 1718
1335void 1719int
1336poll() 1720poll ()
1337 PROTOTYPE:
1338 CODE: 1721 CODE:
1339 if (nreqs)
1340 {
1341 poll_wait (); 1722 poll_wait ();
1342 poll_cb (); 1723 RETVAL = poll_cb ();
1343 }
1344
1345int
1346poll_fileno()
1347 PROTOTYPE:
1348 CODE:
1349 RETVAL = respipe [0];
1350 OUTPUT: 1724 OUTPUT:
1351 RETVAL 1725 RETVAL
1352 1726
1353int 1727int
1728poll_fileno ()
1729 CODE:
1730 RETVAL = s_epipe_fd (&respipe);
1731 OUTPUT:
1732 RETVAL
1733
1734int
1354poll_cb(...) 1735poll_cb (...)
1355 PROTOTYPE: 1736 PROTOTYPE:
1356 CODE: 1737 CODE:
1357 RETVAL = poll_cb (); 1738 RETVAL = poll_cb ();
1358 OUTPUT: 1739 OUTPUT:
1359 RETVAL 1740 RETVAL
1360 1741
1361void 1742void
1362poll_wait() 1743poll_wait ()
1363 PROTOTYPE:
1364 CODE: 1744 CODE:
1365 if (nreqs)
1366 poll_wait (); 1745 poll_wait ();
1367 1746
1368int 1747int
1369nreqs() 1748nreqs ()
1370 PROTOTYPE:
1371 CODE: 1749 CODE:
1372 RETVAL = nreqs; 1750 RETVAL = eio_nreqs ();
1373 OUTPUT: 1751 OUTPUT:
1374 RETVAL 1752 RETVAL
1375 1753
1754int
1755nready ()
1756 CODE:
1757 RETVAL = eio_nready ();
1758 OUTPUT:
1759 RETVAL
1760
1761int
1762npending ()
1763 CODE:
1764 RETVAL = eio_npending ();
1765 OUTPUT:
1766 RETVAL
1767
1768int
1769nthreads ()
1770 CODE:
1771 RETVAL = eio_nthreads ();
1772 OUTPUT:
1773 RETVAL
1774
1775int
1776fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1777 CODE:
1778 RETVAL = posix_fadvise (fh, offset, length, advice);
1779 OUTPUT:
1780 RETVAL
1781
1782IV
1783sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1784 CODE:
1785 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1786 OUTPUT:
1787 RETVAL
1788
1789void
1790mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1791 PPCODE:
1792 sv_unmagic (scalar, MMAP_MAGIC);
1793{
1794 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1795 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1796 if (addr == (void *)-1)
1797 XSRETURN_NO;
1798
1799 sv_force_normal (scalar);
1800
1801 /* we store the length in mg_obj, as namlen is I32 :/ */
1802 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1803 ->mg_obj = (SV *)length;
1804
1805 SvUPGRADE (scalar, SVt_PV); /* nop... */
1806
1807 if (!(prot & PROT_WRITE))
1808 SvREADONLY_on (scalar);
1809
1810 if (SvLEN (scalar))
1811 Safefree (SvPVX (scalar));
1812
1813 SvPVX (scalar) = (char *)addr;
1814 SvCUR_set (scalar, length);
1815 SvLEN_set (scalar, 0);
1816 SvPOK_only (scalar);
1817
1818 XSRETURN_YES;
1819}
1820
1821void
1822munmap (SV *scalar)
1823 CODE:
1824 sv_unmagic (scalar, MMAP_MAGIC);
1825
1826int
1827madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1828 ALIAS:
1829 mprotect = 1
1830 CODE:
1831{
1832 STRLEN svlen;
1833 void *addr = SvPVbyte (scalar, svlen);
1834 STRLEN len = SvUV (length);
1835
1836 if (offset < 0)
1837 offset += svlen;
1838
1839 if (offset < 0 || offset > svlen)
1840 croak ("offset outside of scalar");
1841
1842 if (!SvOK (length) || len + offset > svlen)
1843 len = svlen - offset;
1844
1845 addr = (void *)(((intptr_t)addr) + offset);
1846 eio_page_align (&addr, &len);
1847
1848 switch (ix)
1849 {
1850 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1851 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1852 }
1853}
1854 OUTPUT:
1855 RETVAL
1856
1857int
1858munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1859 CODE:
1860{
1861 STRLEN svlen;
1862 void *addr = SvPVbyte (scalar, svlen);
1863 size_t len = SvUV (length);
1864
1865 if (offset < 0)
1866 offset += svlen;
1867
1868 if (offset < 0 || offset > svlen)
1869 croak ("offset outside of scalar");
1870
1871 if (!SvOK (length) || len + offset > svlen)
1872 len = svlen - offset;
1873
1874 addr = (void *)(((intptr_t)addr) + offset);
1875 eio_page_align (&addr, &len);
1876#if _POSIX_MEMLOCK_RANGE
1877 RETVAL = munlock (addr, len);
1878#else
1879 RETVAL = EIO_ENOSYS ();
1880#endif
1881}
1882 OUTPUT:
1883 RETVAL
1884
1885int
1886munlockall ()
1887 CODE:
1888#if _POSIX_MEMLOCK
1889 munlockall ();
1890#else
1891 RETVAL = EIO_ENOSYS ();
1892#endif
1893 OUTPUT:
1894 RETVAL
1895
1896int
1897splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1898 CODE:
1899{
1900#if HAVE_LINUX_SPLICE
1901 loff_t off_in_, off_out_;
1902 RETVAL = splice (
1903 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1904 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1905 length, flags
1906 );
1907#else
1908 RETVAL = EIO_ENOSYS ();
1909#endif
1910}
1911 OUTPUT:
1912 RETVAL
1913
1914int
1915tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1916 CODE:
1917#if HAVE_LINUX_SPLICE
1918 RETVAL = tee (rfh, wfh, length, flags);
1919#else
1920 RETVAL = EIO_ENOSYS ();
1921#endif
1922 OUTPUT:
1923 RETVAL
1924
1925int
1926pipesize (aio_rfd rfh, int new_size = -1)
1927 PROTOTYPE: $;$
1928 CODE:
1929#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1930 if (new_size >= 0)
1931 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1932 else
1933 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1934#else
1935 errno = ENOSYS;
1936 RETVAL = -1;
1937#endif
1938 OUTPUT:
1939 RETVAL
1940
1941void
1942pipe2 (int flags = 0)
1943 PROTOTYPE: ;$
1944 PPCODE:
1945{
1946 int fd[2];
1947 int res;
1948
1949 if (flags)
1950#if HAVE_PIPE2
1951 res = pipe2 (fd, flags);
1952#else
1953 res = (errno = ENOSYS, -1);
1954#endif
1955 else
1956 res = pipe (fd);
1957
1958 if (!res)
1959 {
1960 EXTEND (SP, 2);
1961 PUSHs (newmortalFH (fd[0], O_RDONLY));
1962 PUSHs (newmortalFH (fd[1], O_WRONLY));
1963 }
1964}
1965
1966void _on_next_submit (SV *cb)
1967 CODE:
1968 SvREFCNT_dec (on_next_submit);
1969 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1970
1376PROTOTYPES: DISABLE 1971PROTOTYPES: DISABLE
1972
1973MODULE = IO::AIO PACKAGE = IO::AIO::WD
1974
1975BOOT:
1976{
1977 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1978 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1979}
1980
1981void
1982DESTROY (SV *self)
1983 CODE:
1984{
1985 aio_wd wd = SvAIO_WD (self);
1986#if HAVE_AT
1987 {
1988 SV *callback = &PL_sv_undef;
1989 dREQ; /* clobbers next_pri :/ */
1990 next_pri = req->pri; /* restore next_pri */
1991 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1992 req->type = EIO_WD_CLOSE;
1993 req->wd = wd;
1994 REQ_SEND;
1995 }
1996#else
1997 eio_wd_close_sync (wd);
1998#endif
1999}
1377 2000
1378MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2001MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1379 2002
1380void 2003void
1381cancel (aio_req_ornot req) 2004cancel (aio_req_ornot req)
1382 CODE: 2005 CODE:
1383 req_cancel (req); 2006 eio_cancel (req);
1384 2007
1385void 2008void
1386cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2009cb (aio_req_ornot req, SV *callback = NO_INIT)
1387 CODE: 2010 PPCODE:
2011{
2012 if (GIMME_V != G_VOID)
2013 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2014
2015 if (items > 1)
2016 {
2017 SV *cb_cv = get_cb (callback);
2018
1388 SvREFCNT_dec (req->callback); 2019 SvREFCNT_dec (req->callback);
1389 req->callback = newSVsv (callback); 2020 req->callback = SvREFCNT_inc (cb_cv);
2021 }
2022}
1390 2023
1391MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2024MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1392 2025
1393void 2026void
1394add (aio_req grp, ...) 2027add (aio_req grp, ...)
1395 PPCODE: 2028 PPCODE:
1396{ 2029{
1397 int i; 2030 int i;
1398 aio_req req;
1399 2031
1400 if (grp->fd == 2) 2032 if (grp->int1 == 2)
1401 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2033 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1402 2034
1403 for (i = 1; i < items; ++i ) 2035 for (i = 1; i < items; ++i )
1404 { 2036 {
2037 aio_req req;
2038
1405 if (GIMME_V != G_VOID) 2039 if (GIMME_V != G_VOID)
1406 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2040 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1407 2041
1408 req = SvAIO_REQ (ST (i)); 2042 req = SvAIO_REQ (ST (i));
1409 2043
1410 if (req) 2044 if (req)
1411 { 2045 eio_grp_add (grp, req);
1412 ++grp->length;
1413 req->grp = grp;
1414
1415 req->grp_prev = 0;
1416 req->grp_next = grp->grp_first;
1417
1418 if (grp->grp_first)
1419 grp->grp_first->grp_prev = req;
1420
1421 grp->grp_first = req;
1422 }
1423 } 2046 }
1424} 2047}
2048
2049void
2050cancel_subs (aio_req_ornot req)
2051 CODE:
2052 req_cancel_subs (req);
1425 2053
1426void 2054void
1427result (aio_req grp, ...) 2055result (aio_req grp, ...)
1428 CODE: 2056 CODE:
1429{ 2057{
1430 int i; 2058 int i;
2059 AV *av;
2060
2061 grp->errorno = errno;
2062
1431 AV *av = newAV (); 2063 av = newAV ();
2064 av_extend (av, items - 1);
1432 2065
1433 for (i = 1; i < items; ++i ) 2066 for (i = 1; i < items; ++i )
1434 av_push (av, newSVsv (ST (i))); 2067 av_push (av, newSVsv (ST (i)));
1435 2068
1436 SvREFCNT_dec (grp->data); 2069 SvREFCNT_dec (grp->sv1);
1437 grp->data = (SV *)av; 2070 grp->sv1 = (SV *)av;
1438} 2071}
2072
2073void
2074errno (aio_req grp, int errorno = errno)
2075 CODE:
2076 grp->errorno = errorno;
1439 2077
1440void 2078void
1441limit (aio_req grp, int limit) 2079limit (aio_req grp, int limit)
1442 CODE: 2080 CODE:
1443 grp->fd2 = limit; 2081 eio_grp_limit (grp, limit);
1444 aio_grp_feed (grp);
1445 2082
1446void 2083void
1447feed (aio_req grp, SV *callback=&PL_sv_undef) 2084feed (aio_req grp, SV *callback = &PL_sv_undef)
1448 CODE: 2085 CODE:
1449{ 2086{
1450 SvREFCNT_dec (grp->fh2); 2087 SvREFCNT_dec (grp->sv2);
1451 grp->fh2 = newSVsv (callback); 2088 grp->sv2 = newSVsv (callback);
2089 grp->feed = aio_grp_feed;
1452 2090
1453 if (grp->fd2 <= 0) 2091 if (grp->int2 <= 0)
1454 grp->fd2 = 2; 2092 grp->int2 = 2;
1455 2093
1456 aio_grp_feed (grp); 2094 eio_grp_limit (grp, grp->int2);
1457} 2095}
1458 2096

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