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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.71 by root, Tue Oct 24 16:35:04 2006 UTC vs.
Revision 1.233 by root, Thu Jun 25 13:34:28 2015 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#include "def0.h"
49# define NAME_MAX 4096
50#endif
51 151
52#if __ia64 152#ifndef makedev
53# define STACKSIZE 65536 153# 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 154#endif
155#ifndef major
156# define major(dev) ((dev) >> 8)
157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
59 161
60/* buffer size for various temporary buffers */ 162#if PAGESIZE <= 0
61#define AIO_BUFSIZE 65536 163# define PAGESIZE sysconf (_SC_PAGESIZE)
164#endif
62 165
63#define dBUF \ 166/*****************************************************************************/
64 char *aio_buf; \ 167
65 LOCK (wrklock); \ 168static void
66 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 169fiemap (eio_req *req)
67 UNLOCK (wrklock); \ 170{
68 if (!aio_buf) \ 171 req->result = -1;
172
173#if HAVE_FIEMAP
174 /* assume some c99 */
175 struct fiemap *fiemap = 0;
176 size_t end_offset;
177 int count = req->int3;
178
179 req->flags |= EIO_FLAG_PTR1_FREE;
180
181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
182 /* increase in 3.5kb steps */
183 if (count < 0)
184 count = 8;
185
186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
187 errno = ENOMEM;
188 if (!fiemap)
69 return -1; 189 return;
70 190
71enum { 191 req->ptr1 = fiemap;
72 REQ_QUIT,
73 REQ_OPEN, REQ_CLOSE,
74 REQ_READ, REQ_WRITE, REQ_READAHEAD,
75 REQ_SENDFILE,
76 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
79 REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83};
84 192
85#define AIO_REQ_KLASS "IO::AIO::REQ" 193 fiemap->fm_start = req->offs;
86#define AIO_GRP_KLASS "IO::AIO::GRP" 194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
87 197
88typedef struct aio_cb 198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
89{ 199 return;
90 struct aio_cb *volatile next;
91 200
92 SV *data, *callback; 201 if (req->int3 >= 0 /* not autosizing */
93 SV *fh, *fh2; 202 || !fiemap->fm_mapped_extents /* no more extents */
94 void *dataptr, *data2ptr; 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
95 Stat_t *statdata; 204 goto done;
96 off_t offset;
97 size_t length;
98 ssize_t result;
99 205
100 STRLEN dataoffset; 206 /* else we have to loop -
101 int type; 207 * it would be tempting (actually I tried that first) to just query the
102 int fd, fd2; 208 * number of extents needed, but linux often feels like not returning all
103 int errorno; 209 * extents, without telling us it left any out. this complicates
104 mode_t mode; /* open */ 210 * this quite a bit.
211 */
105 212
106 unsigned char flags; 213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
107 unsigned char pri;
108 214
109 SV *self; /* the perl counterpart of this request, if any */ 215 for (;;)
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
111} aio_cb;
112
113enum {
114 FLAG_CANCELLED = 0x01,
115};
116
117typedef aio_cb *aio_req;
118typedef aio_cb *aio_req_ornot;
119
120enum {
121 PRI_MIN = -4,
122 PRI_MAX = 4,
123
124 DEFAULT_PRI = 0,
125 PRI_BIAS = -PRI_MIN,
126 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
127};
128
129static int next_pri = DEFAULT_PRI + PRI_BIAS;
130
131static int started, wanted;
132static volatile int nreqs;
133static int max_outstanding = 1<<30;
134static int respipe [2];
135
136#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
137# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
138#else
139# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
140#endif
141
142#define LOCK(mutex) pthread_mutex_lock (&(mutex))
143#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
144
145/* worker threasd management */
146static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
147
148typedef struct worker {
149 /* locked by wrklock */
150 struct worker *prev, *next;
151
152 pthread_t tid;
153
154 /* locked by reslock, reqlock or wrklock */
155 aio_req req; /* currently processed request */
156 void *dbuf;
157 DIR *dirp;
158} worker;
159
160static worker wrk_first = { &wrk_first, &wrk_first, 0 };
161
162static void worker_clear (worker *wrk)
163{
164 if (wrk->dirp)
165 { 216 {
166 closedir (wrk->dirp); 217 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
167 wrk->dirp = 0; 218 char scratch[3072];
168 } 219 struct fiemap *incmap = (struct fiemap *)scratch;
169 220
170 if (wrk->dbuf) 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
171 { 222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
172 free (wrk->dbuf); 223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
173 wrk->dbuf = 0; 224 incmap->fm_flags = fiemap->fm_flags;
174 } 225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
175}
176 226
177static void worker_free (worker *wrk) 227 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
178{
179 wrk->next->prev = wrk->prev;
180 wrk->prev->next = wrk->next;
181
182 free (wrk);
183}
184
185static pthread_mutex_t reslock = AIO_MUTEX_INIT;
186static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
187static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
188
189/*
190 * a somewhat faster data structure might be nice, but
191 * with 8 priorities this actually needs <20 insns
192 * per shift, the most expensive operation.
193 */
194typedef struct {
195 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
196 int size;
197} reqq;
198
199static reqq req_queue;
200static reqq res_queue;
201
202int reqq_push (reqq *q, aio_req req)
203{
204 int pri = req->pri;
205 req->next = 0;
206
207 if (q->qe[pri])
208 {
209 q->qe[pri]->next = req;
210 q->qe[pri] = req;
211 }
212 else
213 q->qe[pri] = q->qs[pri] = req;
214
215 return q->size++;
216}
217
218aio_req reqq_shift (reqq *q)
219{
220 int pri;
221
222 if (!q->size)
223 return 0; 228 return;
224 229
225 --q->size; 230 if (!incmap->fm_mapped_extents)
231 goto done;
226 232
227 for (pri = NUM_PRI; pri--; ) 233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
228 { 234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
229 aio_req req = q->qs[pri]; 235 errno = ENOMEM;
230
231 if (req) 236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
232 { 242 {
233 if (!(q->qs[pri] = req->next)) 243 struct fiemap_extent *e = incmap->fm_extents + count;
234 q->qe[pri] = 0;
235 244
236 return req; 245 if (e->fe_logical + e->fe_length >= end_offset)
246 goto done;
247
248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
237 } 253 }
238 } 254 }
239 255
240 abort (); 256done:
241} 257 req->result = 0;
242 258
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);
243static void req_invoke (aio_req req); 281static void req_cancel (aio_req req);
244static void req_free (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}
245 296
246/* must be called at most once */ 297/* must be called at most once */
247static SV *req_sv (aio_req req, const char *klass) 298static SV *
299req_sv (aio_req req, HV *stash)
248{ 300{
249 if (!req->self) 301 if (!req->self)
250 { 302 {
251 req->self = (SV *)newHV (); 303 req->self = (SV *)newHV ();
252 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
253 } 305 }
254 306
255 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
256} 308}
257 309
258static aio_req SvAIO_REQ (SV *sv) 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)
259{ 318{
260 MAGIC *mg; 319 MAGIC *mg;
261 320
262 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 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")))
263 croak ("object of class " AIO_REQ_KLASS " expected"); 326 croak ("object of class IO::AIO::REQ expected");
264 327
265 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
266 329
267 return mg ? (aio_req)mg->mg_ptr : 0; 330 return mg ? (aio_req)mg->mg_ptr : 0;
268} 331}
269 332
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
270static void aio_grp_feed (aio_req grp) 370aio_grp_feed (aio_req grp)
271{ 371{
272 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 372 if (grp->sv2 && SvOK (grp->sv2))
273 { 373 {
274 int old_len = grp->length;
275
276 if (grp->fh2 && SvOK (grp->fh2))
277 {
278 dSP; 374 dSP;
279 375
280 ENTER; 376 ENTER;
281 SAVETMPS; 377 SAVETMPS;
282 PUSHMARK (SP); 378 PUSHMARK (SP);
283 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 379 XPUSHs (req_sv (grp, aio_grp_stash));
284 PUTBACK; 380 PUTBACK;
285 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 381 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
286 SPAGAIN; 382 SPAGAIN;
287 FREETMPS; 383 FREETMPS;
288 LEAVE; 384 LEAVE;
289 }
290
291 /* stop if no progress has been made */
292 if (old_len == grp->length)
293 {
294 SvREFCNT_dec (grp->fh2);
295 grp->fh2 = 0;
296 break;
297 }
298 } 385 }
299} 386}
300 387
301static void aio_grp_dec (aio_req grp) 388static void
389req_submit (eio_req *req)
302{ 390{
303 --grp->length; 391 eio_submit (req);
304 392
305 /* call feeder, if applicable */ 393 if (expect_false (on_next_submit))
306 aio_grp_feed (grp);
307
308 /* finish, if done */
309 if (!grp->length && grp->fd)
310 { 394 {
311 req_invoke (grp); 395 dSP;
312 req_free (grp); 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);
313 } 403 }
314} 404}
315 405
316static void poll_wait () 406static int
407req_invoke (eio_req *req)
317{ 408{
318 fd_set rfd; 409 if (req->flags & FLAG_SV2_RO_OFF)
410 SvREADONLY_off (req->sv2);
319 411
320 while (nreqs) 412 if (!EIO_CANCELLED (req) && req->callback)
321 { 413 {
322 int size;
323#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
324 LOCK (reslock);
325#endif
326 size = res_queue.size;
327#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
328 UNLOCK (reslock);
329#endif
330
331 if (size)
332 return;
333
334 FD_ZERO(&rfd);
335 FD_SET(respipe [0], &rfd);
336
337 select (respipe [0] + 1, &rfd, 0, 0, 0);
338 }
339}
340
341static void req_invoke (aio_req req)
342{
343 dSP; 414 dSP;
344 415 static SV *sv_result_cache; /* caches the result integer SV */
345 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 416 SV *sv_result;
346 {
347 errno = req->errorno;
348 417
349 ENTER; 418 ENTER;
350 SAVETMPS; 419 SAVETMPS;
351 PUSHMARK (SP); 420 PUSHMARK (SP);
352 EXTEND (SP, 1); 421 EXTEND (SP, 1);
353 422
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
354 switch (req->type) 436 switch (req->type)
355 { 437 {
438 case EIO_WD_OPEN:
439 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
440 break;
441
356 case REQ_READDIR: 442 case EIO_READDIR:
357 { 443 {
358 SV *rv = &PL_sv_undef; 444 SV *rv = &PL_sv_undef;
359 445
360 if (req->result >= 0) 446 if (req->result >= 0)
361 { 447 {
362 int i; 448 int i;
363 char *buf = req->data2ptr; 449 char *names = (char *)req->ptr2;
450 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
364 AV *av = newAV (); 451 AV *av = newAV ();
365 452
366 av_extend (av, req->result - 1); 453 av_extend (av, req->result - 1);
367 454
368 for (i = 0; i < req->result; ++i) 455 for (i = 0; i < req->result; ++i)
369 { 456 {
370 SV *sv = newSVpv (buf, 0); 457 if (req->int1 & EIO_READDIR_DENTS)
458 {
459 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
371 460
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
372 av_store (av, i, sv); 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);
373 buf += SvCUR (sv) + 1; 489 names += SvCUR (name) + 1;
490 }
374 } 491 }
375 492
376 rv = sv_2mortal (newRV_noinc ((SV *)av)); 493 rv = sv_2mortal (newRV_noinc ((SV *)av));
377 } 494 }
378 495
379 PUSHs (rv); 496 PUSHs (rv);
497
498 if (req->int1 & EIO_READDIR_CUSTOM1)
499 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
380 } 500 }
381 break; 501 break;
382 502
383 case REQ_OPEN: 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:
384 { 509 {
385 /* convert fd to fh */ 510 SV *rv = &PL_sv_undef;
386 SV *fh; 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));
387 522
388 PUSHs (sv_2mortal (newSViv (req->result))); 523 rv = sv_2mortal (newRV_noinc ((SV *)hv));
389 PUTBACK;
390 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
391 SPAGAIN;
392 524
393 fh = SvREFCNT_inc (POPs); 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
394 538
395 PUSHMARK (SP); 539 PUSHs (rv);
396 XPUSHs (sv_2mortal (fh));
397 } 540 }
541
398 break; 542 break;
399 543
400 case REQ_GROUP: 544 case EIO_GROUP:
401 req->fd = 2; /* mark group as finished */ 545 req->int1 = 2; /* mark group as finished */
402 546
403 if (req->data) 547 if (req->sv1)
404 { 548 {
405 int i; 549 int i;
406 AV *av = (AV *)req->data; 550 AV *av = (AV *)req->sv1;
407 551
408 EXTEND (SP, AvFILL (av) + 1); 552 EXTEND (SP, AvFILL (av) + 1);
409 for (i = 0; i <= AvFILL (av); ++i) 553 for (i = 0; i <= AvFILL (av); ++i)
410 PUSHs (*av_fetch (av, i, 0)); 554 PUSHs (*av_fetch (av, i, 0));
411 } 555 }
412 break; 556 break;
413 557
414 case REQ_NOP: 558 case EIO_NOP:
415 case REQ_BUSY: 559 case EIO_BUSY:
416 break; 560 break;
417 561
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
418 default: 639 default:
419 PUSHs (sv_2mortal (newSViv (req->result))); 640 PUSHs (sv_result);
420 break; 641 break;
421 } 642 }
422 643
644 errno = req->errorno;
423 645
424 PUTBACK; 646 PUTBACK;
425 call_sv (req->callback, G_VOID | G_EVAL); 647 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
426 SPAGAIN; 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;
427 654
428 FREETMPS; 655 FREETMPS;
429 LEAVE; 656 LEAVE;
657
658 PUTBACK;
430 } 659 }
431 660
432 if (req->grp) 661 return !!SvTRUE (ERRSV);
433 {
434 aio_req grp = req->grp;
435
436 /* unlink request */
437 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
438 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
439
440 if (grp->grp_first == req)
441 grp->grp_first = req->grp_next;
442
443 aio_grp_dec (grp);
444 }
445
446 if (SvTRUE (ERRSV))
447 {
448 req_free (req);
449 croak (0);
450 }
451} 662}
452 663
453static void req_free (aio_req req) 664static void
665req_destroy (aio_req req)
454{ 666{
455 if (req->self) 667 if (req->self)
456 { 668 {
457 sv_unmagic (req->self, PERL_MAGIC_ext); 669 sv_unmagic (req->self, PERL_MAGIC_ext);
458 SvREFCNT_dec (req->self); 670 SvREFCNT_dec (req->self);
459 } 671 }
460 672
461 SvREFCNT_dec (req->data);
462 SvREFCNT_dec (req->fh); 673 SvREFCNT_dec (req->sv1);
463 SvREFCNT_dec (req->fh2); 674 SvREFCNT_dec (req->sv2);
675 SvREFCNT_dec (req->sv3);
676 SvREFCNT_dec (req->sv4);
464 SvREFCNT_dec (req->callback); 677 SvREFCNT_dec (req->callback);
465 Safefree (req->statdata);
466 678
467 if (req->type == REQ_READDIR)
468 free (req->data2ptr);
469
470 Safefree (req); 679 free (req);
471} 680}
472 681
473static void req_cancel (aio_req req) 682static void
683req_cancel_subs (aio_req grp)
474{ 684{
475 req->flags |= FLAG_CANCELLED;
476
477 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 ())
478 { 705 {
479 aio_req sub; 706 int size;
480 707
481 for (sub = req->grp_first; sub; sub = sub->grp_next) 708 X_LOCK (reslock);
482 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);
483 } 718 }
484} 719}
485 720
486static int poll_cb () 721static int
722poll_cb (void)
487{ 723{
488 dSP;
489 int count = 0;
490 int do_croak = 0;
491 aio_req req;
492
493 for (;;) 724 for (;;)
494 { 725 {
495 LOCK (reslock); 726 int res = eio_poll ();
496 req = reqq_shift (&res_queue);
497 727
498 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)
499 { 839 {
500 if (!res_queue.size) 840 path = AvARRAY (rv)[1];
841 wdob = AvARRAY (rv)[0];
842
843 if (SvOK (wdob))
501 { 844 {
502 /* read any signals sent by the worker threads */ 845 *wd = SvAIO_WD (wdob);
503 char buf [32]; 846 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
504 while (read (respipe [0], buf, 32) == 32)
505 ;
506 } 847 }
848 else
849 *wd = EIO_INVALID_WD;
507 } 850 }
508 851 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
509 UNLOCK (reslock);
510
511 if (!req)
512 break;
513
514 --nreqs;
515
516 if (req->type == REQ_QUIT)
517 started--;
518 else if (req->type == REQ_GROUP && req->length)
519 { 852 {
520 req->fd = 1; /* mark request as delayed */ 853 *wd = (aio_wd)(long)SvIVX (rv);
521 continue; 854 *wdsv = SvREFCNT_inc_NN (rv);
855 *ptr = ".";
856 return; /* path set to "." */
522 } 857 }
523 else 858 else
524 { 859 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
525 if (req->type == REQ_READ)
526 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
527
528 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
529 SvREADONLY_off (req->data);
530
531 if (req->statdata)
532 {
533 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
534 PL_laststatval = req->result;
535 PL_statcache = *(req->statdata);
536 }
537
538 req_invoke (req);
539
540 count++;
541 }
542
543 req_free (req);
544 } 860 }
545 861
546 return count; 862 *pathsv = newSVsv (path);
863 *ptr = SvPVbyte_nolen (*pathsv);
547} 864}
548 865
549static void *aio_proc(void *arg); 866static void ecb_noinline
550 867req_set_path1 (aio_req req, SV *path)
551static void start_thread (void)
552{ 868{
553 worker *wrk = calloc (1, sizeof (worker)); 869 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
870}
554 871
555 if (!wrk) 872static void ecb_noinline
556 croak ("unable to allocate worker thread data"); 873req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
874{
875 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
557 876
558 sigset_t fullsigset, oldsigset; 877 switch (SvTYPE (rv))
559 pthread_attr_t attr;
560
561 pthread_attr_init (&attr);
562 pthread_attr_setstacksize (&attr, STACKSIZE);
563 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
564
565 sigfillset (&fullsigset);
566
567 LOCK (wrklock);
568 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
569
570 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
571 { 878 {
572 wrk->prev = &wrk_first; 879 case SVt_PVIO:
573 wrk->next = wrk_first.next; 880 case SVt_PVLV:
574 wrk_first.next->prev = wrk; 881 case SVt_PVGV:
575 wrk_first.next = wrk; 882 req->type = type_fh;
576 started++; 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;
577 } 891 }
578 else
579 free (wrk);
580
581 sigprocmask (SIG_SETMASK, &oldsigset, 0);
582 UNLOCK (wrklock);
583} 892}
584 893
585static void req_send (aio_req req) 894XS(boot_IO__AIO) ecb_cold;
586{
587 while (started < wanted && nreqs >= started)
588 start_thread ();
589 895
590 ++nreqs; 896MODULE = IO::AIO PACKAGE = IO::AIO
591 897
592 LOCK (reqlock); 898PROTOTYPES: ENABLE
593 reqq_push (&req_queue, req);
594 pthread_cond_signal (&reqwait);
595 UNLOCK (reqlock);
596 899
597 if (nreqs > max_outstanding) 900BOOT:
598 for (;;)
599 {
600 poll_cb ();
601
602 if (nreqs <= max_outstanding)
603 break;
604
605 poll_wait ();
606 }
607}
608
609static void end_thread (void)
610{ 901{
611 aio_req req; 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 },
612 909
613 Newz (0, req, 1, aio_cb); 910 /* you have to re-run ./gendef0 after adding/Removing any constants here */
614 911
615 req->type = REQ_QUIT; 912 const_iv (ENOSYS)
616 req->pri = PRI_MAX + PRI_BIAS; 913 const_iv (EXDEV)
914 const_iv (EBADR)
617 915
618 req_send (req); 916 const_iv (O_RDONLY)
619} 917 const_iv (O_WRONLY)
918 const_iv (O_RDWR)
919 const_iv (O_CREAT)
920 const_iv (O_TRUNC)
921 const_iv (O_EXCL)
922 const_iv (O_APPEND)
620 923
621static void min_parallel (int nthreads) 924 const_iv (O_ASYNC)
622{ 925 const_iv (O_DIRECT)
623 if (wanted < nthreads) 926 const_iv (O_NOATIME)
624 wanted = nthreads;
625}
626 927
627static void max_parallel (int nthreads) 928 const_iv (O_CLOEXEC)
628{ 929 const_iv (O_NOCTTY)
629 int cur = started; 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_TTY_INIT)
630 939
631 if (wanted > nthreads) 940 const_iv (S_IFIFO)
632 wanted = nthreads; 941 const_iv (S_IFCHR)
942 const_iv (S_IFBLK)
943 const_iv (S_IFLNK)
944 const_iv (S_IFREG)
945 const_iv (S_IFDIR)
946 const_iv (S_IFWHT)
947 const_iv (S_IFSOCK)
948 const_iv (S_IFMT)
633 949
634 while (cur > wanted) 950 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
635 { 951 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
636 end_thread (); 952 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
637 cur--; 953 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
638 } 954 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
955 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
639 956
640 while (started > wanted) 957 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
641 { 958 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
642 poll_wait (); 959 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
643 poll_cb (); 960 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
644 } 961 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
645}
646 962
647static void create_pipe () 963 const_iv (ST_RDONLY)
648{ 964 const_iv (ST_NOSUID)
649 if (pipe (respipe)) 965 const_iv (ST_NODEV)
650 croak ("unable to initialize result pipe"); 966 const_iv (ST_NOEXEC)
967 const_iv (ST_SYNCHRONOUS)
968 const_iv (ST_MANDLOCK)
969 const_iv (ST_WRITE)
970 const_iv (ST_APPEND)
971 const_iv (ST_IMMUTABLE)
972 const_iv (ST_NOATIME)
973 const_iv (ST_NODIRATIME)
974 const_iv (ST_RELATIME)
651 975
652 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 976 const_iv (PROT_NONE)
653 croak ("cannot set result pipe to nonblocking mode"); 977 const_iv (PROT_EXEC)
978 const_iv (PROT_READ)
979 const_iv (PROT_WRITE)
654 980
655 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 981 /*const_iv (MAP_FIXED)*/
656 croak ("cannot set result pipe to nonblocking mode"); 982 const_iv (MAP_PRIVATE)
657} 983 const_iv (MAP_SHARED)
984 const_iv (MAP_ANONYMOUS)
658 985
659/*****************************************************************************/ 986 /* linuxish */
660/* work around various missing functions */ 987 const_iv (MAP_HUGETLB)
988 const_iv (MAP_LOCKED)
989 const_iv (MAP_NORESERVE)
990 const_iv (MAP_POPULATE)
991 const_iv (MAP_NONBLOCK)
661 992
662#if !HAVE_PREADWRITE 993 const_iv (FIEMAP_FLAG_SYNC)
663# define pread aio_pread 994 const_iv (FIEMAP_FLAG_XATTR)
664# define pwrite aio_pwrite 995 const_iv (FIEMAP_FLAGS_COMPAT)
996 const_iv (FIEMAP_EXTENT_LAST)
997 const_iv (FIEMAP_EXTENT_UNKNOWN)
998 const_iv (FIEMAP_EXTENT_DELALLOC)
999 const_iv (FIEMAP_EXTENT_ENCODED)
1000 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1001 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1002 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1003 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1004 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1005 const_iv (FIEMAP_EXTENT_MERGED)
1006 const_iv (FIEMAP_EXTENT_SHARED)
665 1007
666/* 1008 const_iv (SPLICE_F_MOVE)
667 * make our pread/pwrite safe against themselves, but not against 1009 const_iv (SPLICE_F_NONBLOCK)
668 * normal read/write by using a mutex. slows down execution a lot, 1010 const_iv (SPLICE_F_MORE)
669 * but that's your problem, not mine. 1011 const_iv (SPLICE_F_GIFT)
670 */
671static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
672 1012
673static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1013 const_iv (SEEK_DATA)
674{ 1014 const_iv (SEEK_HOLE)
675 ssize_t res;
676 off_t ooffset;
677 1015
678 LOCK (preadwritelock); 1016 /* libeio constants */
679 ooffset = lseek (fd, 0, SEEK_CUR); 1017 const_eio (SEEK_SET)
680 lseek (fd, offset, SEEK_SET); 1018 const_eio (SEEK_CUR)
681 res = read (fd, buf, count); 1019 const_eio (SEEK_END)
682 lseek (fd, ooffset, SEEK_SET);
683 UNLOCK (preadwritelock);
684 1020
685 return res; 1021 const_eio (MCL_FUTURE)
686} 1022 const_eio (MCL_CURRENT)
687 1023
688static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1024 const_eio (MS_ASYNC)
689{ 1025 const_eio (MS_INVALIDATE)
690 ssize_t res; 1026 const_eio (MS_SYNC)
691 off_t ooffset;
692 1027
693 LOCK (preadwritelock); 1028 const_eio (MT_MODIFY)
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = write (fd, buf, count);
697 lseek (fd, offset, SEEK_SET);
698 UNLOCK (preadwritelock);
699 1029
700 return res; 1030 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
701} 1031 const_eio (SYNC_FILE_RANGE_WRITE)
702#endif 1032 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
703 1033
704#if !HAVE_FDATASYNC 1034 const_eio (FALLOC_FL_KEEP_SIZE)
705# define fdatasync fsync 1035 const_eio (FALLOC_FL_PUNCH_HOLE)
706#endif 1036 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1037 const_eio (FALLOC_FL_ZERO_RANGE)
707 1038
708#if !HAVE_READAHEAD 1039 const_eio (READDIR_DENTS)
709# define readahead aio_readahead 1040 const_eio (READDIR_DIRS_FIRST)
1041 const_eio (READDIR_STAT_ORDER)
1042 const_eio (READDIR_FOUND_UNKNOWN)
710 1043
711static ssize_t readahead (int fd, off_t offset, size_t count) 1044 const_eio (DT_UNKNOWN)
712{ 1045 const_eio (DT_FIFO)
713 dBUF; 1046 const_eio (DT_CHR)
714 1047 const_eio (DT_DIR)
715 while (count > 0) 1048 const_eio (DT_BLK)
716 { 1049 const_eio (DT_REG)
717 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1050 const_eio (DT_LNK)
718 1051 const_eio (DT_SOCK)
719 pread (fd, aio_buf, len, offset); 1052 const_eio (DT_WHT)
720 offset += len;
721 count -= len;
722 }
723
724 errno = 0;
725}
726#endif
727
728#if !HAVE_READDIR_R
729# define readdir_r aio_readdir_r
730
731static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
732
733static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
734{
735 struct dirent *e;
736 int errorno;
737
738 LOCK (readdirlock);
739
740 e = readdir (dirp);
741 errorno = errno;
742
743 if (e)
744 {
745 *res = ent;
746 strcpy (ent->d_name, e->d_name);
747 }
748 else
749 *res = 0;
750
751 UNLOCK (readdirlock);
752
753 errno = errorno;
754 return e ? 0 : -1;
755}
756#endif
757
758/* sendfile always needs emulation */
759static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
760{
761 ssize_t res;
762
763 if (!count)
764 return 0;
765
766#if HAVE_SENDFILE
767# if __linux
768 res = sendfile (ofd, ifd, &offset, count);
769
770# elif __freebsd
771 /*
772 * Of course, the freebsd sendfile is a dire hack with no thoughts
773 * wasted on making it similar to other I/O functions.
774 */
775 {
776 off_t sbytes;
777 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
778
779 if (res < 0 && sbytes)
780 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
781 res = sbytes;
782 } 1053 };
783 1054
784# elif __hpux 1055 aio_stash = gv_stashpv ("IO::AIO" , 1);
785 res = sendfile (ofd, ifd, offset, count, 0, 0); 1056 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1057 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1058 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
786 1059
787# elif __solaris 1060 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
788 { 1061 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
789 struct sendfilevec vec;
790 size_t sbytes;
791 1062
792 vec.sfv_fd = ifd; 1063 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
793 vec.sfv_flag = 0;
794 vec.sfv_off = offset;
795 vec.sfv_len = count;
796 1064
797 res = sendfilev (ofd, &vec, 1, &sbytes); 1065 reinit ();
1066}
798 1067
799 if (res < 0 && sbytes) 1068void
1069reinit ()
1070 PROTOTYPE:
1071
1072void
1073max_poll_reqs (unsigned int nreqs)
1074 PROTOTYPE: $
1075 CODE:
1076 eio_set_max_poll_reqs (nreqs);
1077
1078void
1079max_poll_time (double nseconds)
1080 PROTOTYPE: $
1081 CODE:
1082 eio_set_max_poll_time (nseconds);
1083
1084void
1085min_parallel (unsigned int nthreads)
1086 PROTOTYPE: $
1087 CODE:
1088 eio_set_min_parallel (nthreads);
1089
1090void
1091max_parallel (unsigned int nthreads)
1092 PROTOTYPE: $
1093 CODE:
1094 eio_set_max_parallel (nthreads);
1095
1096void
1097max_idle (unsigned int nthreads)
1098 PROTOTYPE: $
1099 CODE:
1100 eio_set_max_idle (nthreads);
1101
1102void
1103idle_timeout (unsigned int seconds)
1104 PROTOTYPE: $
1105 CODE:
1106 eio_set_idle_timeout (seconds);
1107
1108void
1109max_outstanding (unsigned int maxreqs)
1110 PROTOTYPE: $
1111 CODE:
1112 max_outstanding = maxreqs;
1113
1114void
1115aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1116 PPCODE:
1117{
1118 dREQ;
1119
1120 req->type = EIO_WD_OPEN;
1121 req_set_path1 (req, pathname);
1122
1123 REQ_SEND;
1124}
1125
1126void
1127aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1128 PPCODE:
1129{
1130 dREQ;
1131
1132 req->type = EIO_OPEN;
1133 req_set_path1 (req, pathname);
1134 req->int1 = flags;
1135 req->int2 = mode;
1136
1137 REQ_SEND;
1138}
1139
1140void
1141aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1142 ALIAS:
1143 aio_fsync = EIO_FSYNC
1144 aio_fdatasync = EIO_FDATASYNC
1145 aio_syncfs = EIO_SYNCFS
1146 PPCODE:
1147{
1148 int fd = s_fileno_croak (fh, 0);
1149 dREQ;
1150
1151 req->type = ix;
1152 req->sv1 = newSVsv (fh);
1153 req->int1 = fd;
1154
1155 REQ_SEND;
1156}
1157
1158void
1159aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1160 PPCODE:
1161{
1162 int fd = s_fileno_croak (fh, 0);
1163 dREQ;
1164
1165 req->type = EIO_SYNC_FILE_RANGE;
1166 req->sv1 = newSVsv (fh);
1167 req->int1 = fd;
1168 req->offs = offset;
800 res = sbytes; 1169 req->size = nbytes;
801 } 1170 req->int2 = flags;
802 1171
803# endif 1172 REQ_SEND;
1173}
1174
1175void
1176aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1177 PPCODE:
1178{
1179 int fd = s_fileno_croak (fh, 0);
1180 dREQ;
1181
1182 req->type = EIO_FALLOCATE;
1183 req->sv1 = newSVsv (fh);
1184 req->int1 = fd;
1185 req->int2 = mode;
1186 req->offs = offset;
1187 req->size = len;
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_close (SV *fh, SV *callback = &PL_sv_undef)
1194 PPCODE:
1195{
1196 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1197 int fd = s_fileno_croak (fh, 0);
1198 dREQ;
1199
1200 if (expect_false (close_fd < 0))
1201 {
1202 int pipefd [2];
1203
1204 if (
1205#ifdef _WIN32
1206 _pipe (pipefd, 1, _O_BINARY) < 0
804#else 1207#else
805 res = -1; 1208 pipe (pipefd) < 0
806 errno = ENOSYS; 1209 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
807#endif 1210#endif
808 1211 || close (pipefd [1]) < 0
809 if (res < 0
810 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
811#if __solaris
812 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
813#endif
814 )
815 )
816 {
817 /* emulate sendfile. this is a major pain in the ass */
818 dBUF;
819
820 res = 0;
821
822 while (count)
823 {
824 ssize_t cnt;
825
826 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
827
828 if (cnt <= 0)
829 { 1212 )
830 if (cnt && !res) res = -1; 1213 abort (); /*D*/
831 break;
832 }
833 1214
834 cnt = write (ofd, aio_buf, cnt); 1215 close_fd = pipefd [0];
835
836 if (cnt <= 0)
837 {
838 if (cnt && !res) res = -1;
839 break;
840 }
841
842 offset += cnt;
843 res += cnt;
844 count -= cnt;
845 }
846 }
847
848 return res;
849}
850
851/* read a full directory */
852static void scandir_ (aio_req req, worker *self)
853{
854 DIR *dirp;
855 union
856 {
857 struct dirent d;
858 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
859 } *u;
860 struct dirent *entp;
861 char *name, *names;
862 int memlen = 4096;
863 int memofs = 0;
864 int res = 0;
865 int errorno;
866
867 LOCK (wrklock);
868 self->dirp = dirp = opendir (req->dataptr);
869 self->dbuf = u = malloc (sizeof (*u));
870 UNLOCK (wrklock);
871
872 req->data2ptr = names = malloc (memlen);
873
874 if (dirp && u && names)
875 for (;;)
876 {
877 errno = 0;
878 readdir_r (dirp, &u->d, &entp);
879
880 if (!entp)
881 break;
882
883 name = entp->d_name;
884
885 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
886 {
887 int len = strlen (name) + 1;
888
889 res++;
890
891 while (memofs + len > memlen)
892 {
893 memlen *= 2;
894 LOCK (wrklock);
895 req->data2ptr = names = realloc (names, memlen);
896 UNLOCK (wrklock);
897
898 if (!names)
899 break;
900 }
901
902 memcpy (names + memofs, name, len);
903 memofs += len;
904 } 1216 }
905 }
906 1217
907 if (errno) 1218 req->type = EIO_DUP2;
908 res = -1; 1219 req->int1 = close_fd;
909 1220 req->sv2 = newSVsv (fh);
910 req->result = res; 1221 req->int2 = fd;
911}
912 1222
913/*****************************************************************************/ 1223 REQ_SEND;
914
915static void *aio_proc (void *thr_arg)
916{
917 aio_req req;
918 int type;
919 worker *self = (worker *)thr_arg;
920
921 do
922 {
923 LOCK (reqlock);
924
925 for (;;)
926 {
927 self->req = req = reqq_shift (&req_queue);
928
929 if (req)
930 break;
931
932 pthread_cond_wait (&reqwait, &reqlock);
933 }
934
935 UNLOCK (reqlock);
936
937 errno = 0; /* strictly unnecessary */
938 type = req->type; /* remember type for QUIT check */
939
940 if (!(req->flags & FLAG_CANCELLED))
941 switch (type)
942 {
943 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
944 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
945
946 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
947 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
948
949 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
950 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
951 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
952
953 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
954 case REQ_CLOSE: req->result = close (req->fd); break;
955 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
956 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
957 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
958 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
959 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
960
961 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
962 case REQ_FSYNC: req->result = fsync (req->fd); break;
963 case REQ_READDIR: scandir_ (req, self); break;
964
965 case REQ_BUSY:
966 {
967 struct timeval tv;
968
969 tv.tv_sec = req->fd;
970 tv.tv_usec = req->fd2;
971
972 req->result = select (0, 0, 0, 0, &tv);
973 }
974
975 case REQ_GROUP:
976 case REQ_NOP:
977 case REQ_QUIT:
978 break;
979
980 default:
981 req->result = ENOSYS;
982 break;
983 }
984
985 req->errorno = errno;
986
987 LOCK (reslock);
988
989 if (!reqq_push (&res_queue, req))
990 /* write a dummy byte to the pipe so fh becomes ready */
991 write (respipe [1], &respipe, 1);
992
993 self->req = 0;
994 worker_clear (self);
995
996 UNLOCK (reslock);
997 }
998 while (type != REQ_QUIT);
999
1000 LOCK (wrklock);
1001 worker_free (self);
1002 UNLOCK (wrklock);
1003
1004 return 0;
1005} 1224}
1006 1225
1007/*****************************************************************************/
1008
1009static void atfork_prepare (void)
1010{
1011 LOCK (wrklock);
1012 LOCK (reqlock);
1013 LOCK (reslock);
1014#if !HAVE_PREADWRITE
1015 LOCK (preadwritelock);
1016#endif
1017#if !HAVE_READDIR_R
1018 LOCK (readdirlock);
1019#endif
1020}
1021
1022static void atfork_parent (void)
1023{
1024#if !HAVE_READDIR_R
1025 UNLOCK (readdirlock);
1026#endif
1027#if !HAVE_PREADWRITE
1028 UNLOCK (preadwritelock);
1029#endif
1030 UNLOCK (reslock);
1031 UNLOCK (reqlock);
1032 UNLOCK (wrklock);
1033}
1034
1035static void atfork_child (void)
1036{
1037 aio_req prv;
1038
1039 while (prv = reqq_shift (&req_queue))
1040 req_free (prv);
1041
1042 while (prv = reqq_shift (&res_queue))
1043 req_free (prv);
1044
1045 while (wrk_first.next != &wrk_first)
1046 {
1047 worker *wrk = wrk_first.next;
1048
1049 if (wrk->req)
1050 req_free (wrk->req);
1051
1052 worker_clear (wrk);
1053 worker_free (wrk);
1054 }
1055
1056 started = 0;
1057 nreqs = 0;
1058
1059 close (respipe [0]);
1060 close (respipe [1]);
1061 create_pipe ();
1062
1063 atfork_parent ();
1064}
1065
1066#define dREQ \
1067 aio_req req; \
1068 int req_pri = next_pri; \
1069 next_pri = DEFAULT_PRI + PRI_BIAS; \
1070 \
1071 if (SvOK (callback) && !SvROK (callback)) \
1072 croak ("callback must be undef or of reference type"); \
1073 \
1074 Newz (0, req, 1, aio_cb); \
1075 if (!req) \
1076 croak ("out of memory during aio_req allocation"); \
1077 \
1078 req->callback = newSVsv (callback); \
1079 req->pri = req_pri
1080
1081#define REQ_SEND \
1082 req_send (req); \
1083 \
1084 if (GIMME_V != G_VOID) \
1085 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1086
1087MODULE = IO::AIO PACKAGE = IO::AIO
1088
1089PROTOTYPES: ENABLE
1090
1091BOOT:
1092{
1093 HV *stash = gv_stashpv ("IO::AIO", 1);
1094 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1095 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1096 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1097
1098 create_pipe ();
1099 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1100}
1101
1102void 1226void
1103min_parallel (nthreads) 1227aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1104 int nthreads
1105 PROTOTYPE: $
1106
1107void
1108max_parallel (nthreads)
1109 int nthreads
1110 PROTOTYPE: $
1111
1112int
1113max_outstanding (nreqs)
1114 int nreqs
1115 PROTOTYPE: $
1116 CODE: 1228 PPCODE:
1117 RETVAL = max_outstanding;
1118 max_outstanding = nreqs;
1119
1120void
1121aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1122 SV * pathname
1123 int flags
1124 int mode
1125 SV * callback
1126 PROTOTYPE: $$$;$
1127 PPCODE:
1128{ 1229{
1230 int fd = s_fileno_croak (fh, 0);
1129 dREQ; 1231 dREQ;
1130 1232
1131 req->type = REQ_OPEN; 1233 req->type = EIO_SEEK;
1132 req->data = newSVsv (pathname); 1234 req->sv1 = newSVsv (fh);
1133 req->dataptr = SvPVbyte_nolen (req->data); 1235 req->int1 = fd;
1134 req->fd = flags; 1236 req->offs = SvVAL64 (offset);
1135 req->mode = mode; 1237 req->int2 = whence;
1136 1238
1137 REQ_SEND; 1239 REQ_SEND;
1138} 1240}
1139 1241
1140void 1242void
1141aio_close (fh,callback=&PL_sv_undef) 1243aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1142 SV * fh
1143 SV * callback
1144 PROTOTYPE: $;$
1145 ALIAS: 1244 ALIAS:
1146 aio_close = REQ_CLOSE
1147 aio_fsync = REQ_FSYNC
1148 aio_fdatasync = REQ_FDATASYNC
1149 PPCODE:
1150{
1151 dREQ;
1152
1153 req->type = ix;
1154 req->fh = newSVsv (fh);
1155 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1156
1157 REQ_SEND (req);
1158}
1159
1160void
1161aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1162 SV * fh
1163 UV offset
1164 UV length
1165 SV * data
1166 UV dataoffset
1167 SV * callback
1168 ALIAS:
1169 aio_read = REQ_READ 1245 aio_read = EIO_READ
1170 aio_write = REQ_WRITE 1246 aio_write = EIO_WRITE
1171 PROTOTYPE: $$$$$;$
1172 PPCODE: 1247 PPCODE:
1173{ 1248{
1174 aio_req req;
1175 STRLEN svlen; 1249 STRLEN svlen;
1250 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1176 char *svptr = SvPVbyte (data, svlen); 1251 char *svptr = SvPVbyte (data, svlen);
1177 1252 UV len = SvUV (length);
1178 SvUPGRADE (data, SVt_PV);
1179 SvPOK_on (data);
1180 1253
1181 if (dataoffset < 0) 1254 if (dataoffset < 0)
1182 dataoffset += svlen; 1255 dataoffset += svlen;
1183 1256
1184 if (dataoffset < 0 || dataoffset > svlen) 1257 if (dataoffset < 0 || dataoffset > svlen)
1185 croak ("data offset outside of string"); 1258 croak ("dataoffset outside of data scalar");
1186 1259
1187 if (ix == REQ_WRITE) 1260 if (ix == EIO_WRITE)
1188 { 1261 {
1189 /* write: check length and adjust. */ 1262 /* write: check length and adjust. */
1190 if (length < 0 || length + dataoffset > svlen) 1263 if (!SvOK (length) || len + dataoffset > svlen)
1191 length = svlen - dataoffset; 1264 len = svlen - dataoffset;
1192 } 1265 }
1193 else 1266 else
1194 { 1267 {
1195 /* read: grow scalar as necessary */ 1268 /* read: check type and grow scalar as necessary */
1269 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1196 svptr = SvGROW (data, length + dataoffset); 1270 svptr = sv_grow (data, len + dataoffset + 1);
1271 else if (SvCUR (data) < len + dataoffset)
1272 croak ("length + dataoffset outside of scalar, and cannot grow");
1197 } 1273 }
1198
1199 if (length < 0)
1200 croak ("length must not be negative");
1201 1274
1202 { 1275 {
1203 dREQ; 1276 dREQ;
1204 1277
1205 req->type = ix; 1278 req->type = ix;
1206 req->fh = newSVsv (fh); 1279 req->sv1 = newSVsv (fh);
1207 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1280 req->int1 = fd;
1208 : IoOFP (sv_2io (fh))); 1281 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1209 req->offset = offset; 1282 req->size = len;
1210 req->length = length;
1211 req->data = SvREFCNT_inc (data); 1283 req->sv2 = SvREFCNT_inc (data);
1212 req->dataptr = (char *)svptr + dataoffset; 1284 req->ptr2 = (char *)svptr + dataoffset;
1285 req->stroffset = dataoffset;
1213 1286
1214 if (!SvREADONLY (data)) 1287 if (!SvREADONLY (data))
1215 { 1288 {
1216 SvREADONLY_on (data); 1289 SvREADONLY_on (data);
1217 req->data2ptr = (void *)data; 1290 req->flags |= FLAG_SV2_RO_OFF;
1218 } 1291 }
1219 1292
1220 REQ_SEND; 1293 REQ_SEND;
1221 } 1294 }
1222} 1295}
1223 1296
1224void 1297void
1225aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1298aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1226 SV * out_fh 1299 ALIAS:
1227 SV * in_fh 1300 aio_readlink = EIO_READLINK
1228 UV in_offset 1301 aio_realpath = EIO_REALPATH
1229 UV length
1230 SV * callback
1231 PROTOTYPE: $$$$;$
1232 PPCODE: 1302 PPCODE:
1233{ 1303{
1304 dREQ;
1305
1306 req->type = ix;
1307 req_set_path1 (req, pathname);
1308
1309 REQ_SEND;
1310}
1311
1312void
1313aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1314 PPCODE:
1315{
1316 int ifd = s_fileno_croak (in_fh , 0);
1317 int ofd = s_fileno_croak (out_fh, 1);
1234 dREQ; 1318 dREQ;
1235 1319
1236 req->type = REQ_SENDFILE; 1320 req->type = EIO_SENDFILE;
1237 req->fh = newSVsv (out_fh); 1321 req->sv1 = newSVsv (out_fh);
1238 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1322 req->int1 = ofd;
1239 req->fh2 = newSVsv (in_fh); 1323 req->sv2 = newSVsv (in_fh);
1240 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1324 req->int2 = ifd;
1241 req->offset = in_offset; 1325 req->offs = in_offset;
1242 req->length = length; 1326 req->size = length;
1243 1327
1244 REQ_SEND; 1328 REQ_SEND;
1245} 1329}
1246 1330
1247void 1331void
1248aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1332aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1249 SV * fh
1250 UV offset
1251 IV length
1252 SV * callback
1253 PROTOTYPE: $$$;$
1254 PPCODE: 1333 PPCODE:
1255{ 1334{
1335 int fd = s_fileno_croak (fh, 0);
1256 dREQ; 1336 dREQ;
1257 1337
1258 req->type = REQ_READAHEAD; 1338 req->type = EIO_READAHEAD;
1259 req->fh = newSVsv (fh); 1339 req->sv1 = newSVsv (fh);
1260 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1340 req->int1 = fd;
1261 req->offset = offset; 1341 req->offs = offset;
1262 req->length = length; 1342 req->size = length;
1263 1343
1264 REQ_SEND; 1344 REQ_SEND;
1265} 1345}
1266 1346
1267void 1347void
1268aio_stat (fh_or_path,callback=&PL_sv_undef) 1348aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1269 SV * fh_or_path
1270 SV * callback
1271 ALIAS: 1349 ALIAS:
1272 aio_stat = REQ_STAT 1350 aio_stat = EIO_STAT
1273 aio_lstat = REQ_LSTAT 1351 aio_lstat = EIO_LSTAT
1352 aio_statvfs = EIO_STATVFS
1274 PPCODE: 1353 PPCODE:
1275{ 1354{
1276 dREQ; 1355 dREQ;
1277 1356
1278 New (0, req->statdata, 1, Stat_t); 1357 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1279 if (!req->statdata)
1280 {
1281 req_free (req);
1282 croak ("out of memory during aio_req->statdata allocation");
1283 }
1284
1285 if (SvPOK (fh_or_path))
1286 {
1287 req->type = ix;
1288 req->data = newSVsv (fh_or_path);
1289 req->dataptr = SvPVbyte_nolen (req->data);
1290 }
1291 else
1292 {
1293 req->type = REQ_FSTAT;
1294 req->fh = newSVsv (fh_or_path);
1295 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1296 }
1297 1358
1298 REQ_SEND; 1359 REQ_SEND;
1299} 1360}
1300 1361
1362UV
1363major (UV dev)
1364 ALIAS:
1365 minor = 1
1366 CODE:
1367 RETVAL = ix ? major (dev) : minor (dev);
1368 OUTPUT:
1369 RETVAL
1370
1371UV
1372makedev (UV maj, UV min)
1373 CODE:
1374 RETVAL = makedev (maj, min);
1375 OUTPUT:
1376 RETVAL
1377
1301void 1378void
1379aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1380 PPCODE:
1381{
1382 dREQ;
1383
1384 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1385 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1386 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1387
1388 REQ_SEND;
1389}
1390
1391void
1392aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1393 PPCODE:
1394{
1395 dREQ;
1396
1397 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1398 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1399
1400 REQ_SEND;
1401}
1402
1403void
1404aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1405 PPCODE:
1406{
1407 dREQ;
1408
1409 req->int2 = mode;
1410 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1411
1412 REQ_SEND;
1413}
1414
1415void
1416aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1417 PPCODE:
1418{
1419 dREQ;
1420
1421 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1422 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1423 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1424
1425 REQ_SEND;
1426}
1427
1428void
1429aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1430 PPCODE:
1431{
1432 dREQ;
1433
1434 req->type = EIO_READDIR;
1435 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1436
1437 if (flags & EIO_READDIR_DENTS)
1438 req->int1 |= EIO_READDIR_CUSTOM2;
1439
1440 req_set_path1 (req, pathname);
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1447 PPCODE:
1448{
1449 dREQ;
1450
1451 req->type = EIO_MKDIR;
1452 req->int2 = mode;
1453 req_set_path1 (req, pathname);
1454
1455 REQ_SEND;
1456}
1457
1458void
1302aio_unlink (pathname,callback=&PL_sv_undef) 1459aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1303 SV * pathname
1304 SV * callback
1305 ALIAS: 1460 ALIAS:
1306 aio_unlink = REQ_UNLINK 1461 aio_unlink = EIO_UNLINK
1307 aio_rmdir = REQ_RMDIR 1462 aio_rmdir = EIO_RMDIR
1308 aio_readdir = REQ_READDIR 1463 aio_readdir = EIO_READDIR
1309 PPCODE: 1464 PPCODE:
1310{ 1465{
1311 dREQ; 1466 dREQ;
1312 1467
1313 req->type = ix; 1468 req->type = ix;
1314 req->data = newSVsv (pathname); 1469 req_set_path1 (req, pathname);
1315 req->dataptr = SvPVbyte_nolen (req->data); 1470
1316
1317 REQ_SEND; 1471 REQ_SEND;
1318} 1472}
1319 1473
1320void 1474void
1321aio_link (oldpath,newpath,callback=&PL_sv_undef) 1475aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1322 SV * oldpath
1323 SV * newpath
1324 SV * callback
1325 ALIAS: 1476 ALIAS:
1326 aio_link = REQ_LINK 1477 aio_link = EIO_LINK
1327 aio_symlink = REQ_SYMLINK 1478 aio_symlink = EIO_SYMLINK
1328 aio_rename = REQ_RENAME 1479 aio_rename = EIO_RENAME
1329 PPCODE: 1480 PPCODE:
1330{ 1481{
1482 eio_wd wd2 = 0;
1331 dREQ; 1483 dREQ;
1332 1484
1333 req->type = ix; 1485 req->type = ix;
1334 req->fh = newSVsv (oldpath); 1486 req_set_path1 (req, oldpath);
1335 req->data2ptr = SvPVbyte_nolen (req->fh); 1487 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1336 req->data = newSVsv (newpath); 1488 req->int3 = (long)wd2;
1337 req->dataptr = SvPVbyte_nolen (req->data);
1338 1489
1339 REQ_SEND; 1490 REQ_SEND;
1340} 1491}
1341 1492
1342void 1493void
1343aio_busy (delay,callback=&PL_sv_undef) 1494aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1344 double delay
1345 SV * callback
1346 PPCODE: 1495 PPCODE:
1347{ 1496{
1348 dREQ; 1497 dREQ;
1349 1498
1350 req->type = REQ_BUSY; 1499 req->type = EIO_MKNOD;
1351 req->fd = delay < 0. ? 0 : delay; 1500 req->int2 = (mode_t)mode;
1352 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1501 req->offs = dev;
1353 1502 req_set_path1 (req, pathname);
1503
1354 REQ_SEND; 1504 REQ_SEND;
1355} 1505}
1356 1506
1357void 1507void
1358aio_group (callback=&PL_sv_undef) 1508aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1359 SV * callback 1509 ALIAS:
1360 PROTOTYPE: ;$ 1510 aio_mtouch = EIO_MTOUCH
1511 aio_msync = EIO_MSYNC
1361 PPCODE: 1512 PPCODE:
1362{ 1513{
1514 STRLEN svlen;
1515 char *svptr = SvPVbyte (data, svlen);
1516 UV len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 {
1528 dREQ;
1529
1530 req->type = ix;
1531 req->sv2 = SvREFCNT_inc (data);
1532 req->ptr2 = (char *)svptr + offset;
1533 req->size = len;
1534 req->int1 = flags;
1535
1536 REQ_SEND;
1537 }
1538}
1539
1540void
1541aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1542 PPCODE:
1543{
1544 STRLEN svlen;
1545 char *svptr = SvPVbyte (data, svlen);
1546 UV len = SvUV (length);
1547
1548 if (offset < 0)
1549 offset += svlen;
1550
1551 if (offset < 0 || offset > svlen)
1552 croak ("offset outside of scalar");
1553
1554 if (!SvOK (length) || len + offset > svlen)
1555 len = svlen - offset;
1556
1557 {
1558 dREQ;
1559
1560 req->type = EIO_MLOCK;
1561 req->sv2 = SvREFCNT_inc (data);
1562 req->ptr2 = (char *)svptr + offset;
1563 req->size = len;
1564
1565 REQ_SEND;
1566 }
1567}
1568
1569void
1570aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1571 PPCODE:
1572{
1573 dREQ;
1574
1575 req->type = EIO_MLOCKALL;
1576 req->int1 = flags;
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1583 PPCODE:
1584{
1585 int fd = s_fileno_croak (fh, 0);
1363 dREQ; 1586 dREQ;
1364 1587
1365 req->type = REQ_GROUP; 1588 req->type = EIO_CUSTOM;
1366 req_send (req); 1589 req->sv1 = newSVsv (fh);
1590 req->int1 = fd;
1367 1591
1368 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1592 req->feed = fiemap;
1369} 1593#if HAVE_FIEMAP
1594 /* keep our fingers crossed that the next two types are 64 bit */
1595 req->offs = start;
1596 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1597 req->int2 = flags;
1598 req->int3 = SvOK (count) ? SvIV (count) : -1;
1599#endif
1370 1600
1601 REQ_SEND;
1602}
1603
1371void 1604void
1372aio_nop (callback=&PL_sv_undef) 1605aio_busy (double delay, SV *callback = &PL_sv_undef)
1373 SV * callback
1374 PPCODE: 1606 PPCODE:
1375{ 1607{
1376 dREQ; 1608 dREQ;
1377 1609
1378 req->type = REQ_NOP; 1610 req->type = EIO_BUSY;
1611 req->nv1 = delay < 0. ? 0. : delay;
1379 1612
1380 REQ_SEND; 1613 REQ_SEND;
1381} 1614}
1382 1615
1383void 1616void
1384aioreq_pri (int pri = DEFAULT_PRI) 1617aio_group (SV *callback = &PL_sv_undef)
1385 CODE: 1618 PPCODE:
1619{
1620 dREQ;
1621
1622 req->type = EIO_GROUP;
1623
1624 PUTBACK;
1625 req_submit (req);
1626 SPAGAIN;
1627
1628 XPUSHs (req_sv (req, aio_grp_stash));
1629}
1630
1631void
1632aio_nop (SV *callback = &PL_sv_undef)
1633 ALIAS:
1634 aio_nop = EIO_NOP
1635 aio_sync = EIO_SYNC
1636 PPCODE:
1637{
1638 dREQ;
1639
1640 req->type = ix;
1641
1642 REQ_SEND;
1643}
1644
1645int
1646aioreq_pri (int pri = NO_INIT)
1647 CODE:
1648 RETVAL = next_pri;
1649 if (items > 0)
1650 {
1386 if (pri < PRI_MIN) pri = PRI_MIN; 1651 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1387 if (pri > PRI_MAX) pri = PRI_MAX; 1652 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1388 next_pri = pri + PRI_BIAS; 1653 next_pri = pri;
1654 }
1655 OUTPUT:
1656 RETVAL
1389 1657
1390void 1658void
1391aioreq_nice (int nice = 0) 1659aioreq_nice (int nice = 0)
1392 CODE: 1660 CODE:
1393 nice = next_pri - nice; 1661 nice = next_pri - nice;
1394 if (nice < PRI_MIN) nice = PRI_MIN; 1662 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1395 if (nice > PRI_MAX) nice = PRI_MAX; 1663 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1396 next_pri = nice + PRI_BIAS; 1664 next_pri = nice;
1397 1665
1398void 1666void
1399flush () 1667flush ()
1400 PROTOTYPE:
1401 CODE: 1668 CODE:
1402 while (nreqs) 1669 while (eio_nreqs ())
1403 { 1670 {
1404 poll_wait (); 1671 poll_wait ();
1405 poll_cb (); 1672 poll_cb ();
1406 } 1673 }
1407 1674
1408void 1675int
1409poll() 1676poll ()
1410 PROTOTYPE:
1411 CODE: 1677 CODE:
1412 if (nreqs)
1413 {
1414 poll_wait (); 1678 poll_wait ();
1415 poll_cb (); 1679 RETVAL = poll_cb ();
1416 }
1417
1418int
1419poll_fileno()
1420 PROTOTYPE:
1421 CODE:
1422 RETVAL = respipe [0];
1423 OUTPUT: 1680 OUTPUT:
1424 RETVAL 1681 RETVAL
1425 1682
1426int 1683int
1684poll_fileno ()
1685 CODE:
1686 RETVAL = s_epipe_fd (&respipe);
1687 OUTPUT:
1688 RETVAL
1689
1690int
1427poll_cb(...) 1691poll_cb (...)
1428 PROTOTYPE: 1692 PROTOTYPE:
1429 CODE: 1693 CODE:
1430 RETVAL = poll_cb (); 1694 RETVAL = poll_cb ();
1431 OUTPUT: 1695 OUTPUT:
1432 RETVAL 1696 RETVAL
1433 1697
1434void 1698void
1435poll_wait() 1699poll_wait ()
1436 PROTOTYPE:
1437 CODE: 1700 CODE:
1438 if (nreqs)
1439 poll_wait (); 1701 poll_wait ();
1440 1702
1441int 1703int
1442nreqs() 1704nreqs ()
1443 PROTOTYPE:
1444 CODE: 1705 CODE:
1445 RETVAL = nreqs; 1706 RETVAL = eio_nreqs ();
1446 OUTPUT: 1707 OUTPUT:
1447 RETVAL 1708 RETVAL
1448 1709
1710int
1711nready ()
1712 CODE:
1713 RETVAL = eio_nready ();
1714 OUTPUT:
1715 RETVAL
1716
1717int
1718npending ()
1719 CODE:
1720 RETVAL = eio_npending ();
1721 OUTPUT:
1722 RETVAL
1723
1724int
1725nthreads ()
1726 CODE:
1727 RETVAL = eio_nthreads ();
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1733 CODE:
1734 RETVAL = posix_fadvise (fh, offset, length, advice);
1735 OUTPUT:
1736 RETVAL
1737
1738IV
1739sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1740 CODE:
1741 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1742 OUTPUT:
1743 RETVAL
1744
1745void
1746mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1747 PPCODE:
1748 sv_unmagic (scalar, MMAP_MAGIC);
1749{
1750 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1751 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1752 if (addr == (void *)-1)
1753 XSRETURN_NO;
1754
1755 sv_force_normal (scalar);
1756
1757 /* we store the length in mg_obj, as namlen is I32 :/ */
1758 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1759 ->mg_obj = (SV *)length;
1760
1761 SvUPGRADE (scalar, SVt_PV); /* nop... */
1762
1763 if (!(prot & PROT_WRITE))
1764 SvREADONLY_on (scalar);
1765
1766 if (SvLEN (scalar))
1767 Safefree (SvPVX (scalar));
1768
1769 SvPVX (scalar) = (char *)addr;
1770 SvCUR_set (scalar, length);
1771 SvLEN_set (scalar, 0);
1772 SvPOK_only (scalar);
1773
1774 XSRETURN_YES;
1775}
1776
1777void
1778munmap (SV *scalar)
1779 CODE:
1780 sv_unmagic (scalar, MMAP_MAGIC);
1781
1782int
1783madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1784 ALIAS:
1785 mprotect = 1
1786 CODE:
1787{
1788 STRLEN svlen;
1789 void *addr = SvPVbyte (scalar, svlen);
1790 STRLEN len = SvUV (length);
1791
1792 if (offset < 0)
1793 offset += svlen;
1794
1795 if (offset < 0 || offset > svlen)
1796 croak ("offset outside of scalar");
1797
1798 if (!SvOK (length) || len + offset > svlen)
1799 len = svlen - offset;
1800
1801 addr = (void *)(((intptr_t)addr) + offset);
1802 eio_page_align (&addr, &len);
1803
1804 switch (ix)
1805 {
1806 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1807 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1808 }
1809}
1810 OUTPUT:
1811 RETVAL
1812
1813int
1814munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1815 CODE:
1816{
1817 STRLEN svlen;
1818 void *addr = SvPVbyte (scalar, svlen);
1819 size_t len = SvUV (length);
1820
1821 if (offset < 0)
1822 offset += svlen;
1823
1824 if (offset < 0 || offset > svlen)
1825 croak ("offset outside of scalar");
1826
1827 if (!SvOK (length) || len + offset > svlen)
1828 len = svlen - offset;
1829
1830 addr = (void *)(((intptr_t)addr) + offset);
1831 eio_page_align (&addr, &len);
1832#if _POSIX_MEMLOCK_RANGE
1833 RETVAL = munlock (addr, len);
1834#else
1835 RETVAL = EIO_ENOSYS ();
1836#endif
1837}
1838 OUTPUT:
1839 RETVAL
1840
1841int
1842munlockall ()
1843 CODE:
1844#if _POSIX_MEMLOCK
1845 munlockall ();
1846#else
1847 RETVAL = EIO_ENOSYS ();
1848#endif
1849 OUTPUT:
1850 RETVAL
1851
1852int
1853splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1854 CODE:
1855{
1856#if HAVE_LINUX_SPLICE
1857 loff_t off_in_, off_out_;
1858 RETVAL = splice (
1859 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1860 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1861 length, flags
1862 );
1863#else
1864 RETVAL = EIO_ENOSYS ();
1865#endif
1866}
1867 OUTPUT:
1868 RETVAL
1869
1870int
1871tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1872 CODE:
1873#if HAVE_LINUX_SPLICE
1874 RETVAL = tee (rfh, wfh, length, flags);
1875#else
1876 RETVAL = EIO_ENOSYS ();
1877#endif
1878 OUTPUT:
1879 RETVAL
1880
1881int
1882pipesize (aio_rfd rfh, int new_size = -1)
1883 PROTOTYPE: $;$
1884 CODE:
1885#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1886 if (new_size >= 0)
1887 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1888 else
1889 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1890#else
1891 errno = ENOSYS;
1892 RETVAL = -1;
1893#endif
1894 OUTPUT:
1895 RETVAL
1896
1897void
1898pipe2 (int flags = 0)
1899 PROTOTYPE: ;$
1900 PPCODE:
1901{
1902 int fd[2];
1903 int res;
1904
1905 if (flags)
1906#if HAVE_PIPE2
1907 res = pipe2 (fd, flags);
1908#else
1909 res = (errno = ENOSYS, -1);
1910#endif
1911 else
1912 res = pipe (fd);
1913
1914 if (!res)
1915 {
1916 EXTEND (SP, 2);
1917 PUSHs (newmortalFH (fd[0], O_RDONLY));
1918 PUSHs (newmortalFH (fd[1], O_WRONLY));
1919 }
1920}
1921
1922void _on_next_submit (SV *cb)
1923 CODE:
1924 SvREFCNT_dec (on_next_submit);
1925 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1926
1449PROTOTYPES: DISABLE 1927PROTOTYPES: DISABLE
1928
1929MODULE = IO::AIO PACKAGE = IO::AIO::WD
1930
1931BOOT:
1932{
1933 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1934 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1935}
1936
1937void
1938DESTROY (SV *self)
1939 CODE:
1940{
1941 aio_wd wd = SvAIO_WD (self);
1942#if HAVE_AT
1943 {
1944 SV *callback = &PL_sv_undef;
1945 dREQ; /* clobbers next_pri :/ */
1946 next_pri = req->pri; /* restore next_pri */
1947 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1948 req->type = EIO_WD_CLOSE;
1949 req->wd = wd;
1950 REQ_SEND;
1951 }
1952#else
1953 eio_wd_close_sync (wd);
1954#endif
1955}
1450 1956
1451MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1957MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1452 1958
1453void 1959void
1454cancel (aio_req_ornot req) 1960cancel (aio_req_ornot req)
1455 CODE: 1961 CODE:
1456 req_cancel (req); 1962 eio_cancel (req);
1457 1963
1458void 1964void
1459cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1965cb (aio_req_ornot req, SV *callback = NO_INIT)
1460 CODE: 1966 PPCODE:
1967{
1968 if (GIMME_V != G_VOID)
1969 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1970
1971 if (items > 1)
1972 {
1973 SV *cb_cv = get_cb (callback);
1974
1461 SvREFCNT_dec (req->callback); 1975 SvREFCNT_dec (req->callback);
1462 req->callback = newSVsv (callback); 1976 req->callback = SvREFCNT_inc (cb_cv);
1977 }
1978}
1463 1979
1464MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1980MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1465 1981
1466void 1982void
1467add (aio_req grp, ...) 1983add (aio_req grp, ...)
1468 PPCODE: 1984 PPCODE:
1469{ 1985{
1470 int i; 1986 int i;
1471 aio_req req;
1472 1987
1473 if (grp->fd == 2) 1988 if (grp->int1 == 2)
1474 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1989 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1475 1990
1476 for (i = 1; i < items; ++i ) 1991 for (i = 1; i < items; ++i )
1477 { 1992 {
1993 aio_req req;
1994
1478 if (GIMME_V != G_VOID) 1995 if (GIMME_V != G_VOID)
1479 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1996 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1480 1997
1481 req = SvAIO_REQ (ST (i)); 1998 req = SvAIO_REQ (ST (i));
1482 1999
1483 if (req) 2000 if (req)
1484 { 2001 eio_grp_add (grp, req);
1485 ++grp->length;
1486 req->grp = grp;
1487
1488 req->grp_prev = 0;
1489 req->grp_next = grp->grp_first;
1490
1491 if (grp->grp_first)
1492 grp->grp_first->grp_prev = req;
1493
1494 grp->grp_first = req;
1495 }
1496 } 2002 }
1497} 2003}
2004
2005void
2006cancel_subs (aio_req_ornot req)
2007 CODE:
2008 req_cancel_subs (req);
1498 2009
1499void 2010void
1500result (aio_req grp, ...) 2011result (aio_req grp, ...)
1501 CODE: 2012 CODE:
1502{ 2013{
1503 int i; 2014 int i;
2015 AV *av;
2016
2017 grp->errorno = errno;
2018
1504 AV *av = newAV (); 2019 av = newAV ();
2020 av_extend (av, items - 1);
1505 2021
1506 for (i = 1; i < items; ++i ) 2022 for (i = 1; i < items; ++i )
1507 av_push (av, newSVsv (ST (i))); 2023 av_push (av, newSVsv (ST (i)));
1508 2024
1509 SvREFCNT_dec (grp->data); 2025 SvREFCNT_dec (grp->sv1);
1510 grp->data = (SV *)av; 2026 grp->sv1 = (SV *)av;
1511} 2027}
2028
2029void
2030errno (aio_req grp, int errorno = errno)
2031 CODE:
2032 grp->errorno = errorno;
1512 2033
1513void 2034void
1514limit (aio_req grp, int limit) 2035limit (aio_req grp, int limit)
1515 CODE: 2036 CODE:
1516 grp->fd2 = limit; 2037 eio_grp_limit (grp, limit);
1517 aio_grp_feed (grp);
1518 2038
1519void 2039void
1520feed (aio_req grp, SV *callback=&PL_sv_undef) 2040feed (aio_req grp, SV *callback = &PL_sv_undef)
1521 CODE: 2041 CODE:
1522{ 2042{
1523 SvREFCNT_dec (grp->fh2); 2043 SvREFCNT_dec (grp->sv2);
1524 grp->fh2 = newSVsv (callback); 2044 grp->sv2 = newSVsv (callback);
2045 grp->feed = aio_grp_feed;
1525 2046
1526 if (grp->fd2 <= 0) 2047 if (grp->int2 <= 0)
1527 grp->fd2 = 2; 2048 grp->int2 = 2;
1528 2049
1529 aio_grp_feed (grp); 2050 eio_grp_limit (grp, grp->int2);
1530} 2051}
1531 2052

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