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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.228 by root, Fri Jan 24 23:46:16 2014 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
34# if __linux 24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
42#ifdef _WIN32
43
44 // perl overrides all those nice libc functions
45
46 #undef malloc
47 #undef free
48 #undef open
49 #undef read
50 #undef write
51 #undef send
52 #undef recv
53 #undef stat
54 #undef lstat
55 #undef fstat
56 #undef truncate
57 #undef ftruncate
58 #undef open
59 #undef link
60 #undef close
61 #undef unlink
62 #undef mkdir
63 #undef rmdir
64 #undef rename
65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
79#else
80
81 #include <sys/time.h>
35# include <sys/sendfile.h> 82 #include <sys/select.h>
36# elif __freebsd 83 #include <unistd.h>
37# include <sys/socket.h> 84 #include <utime.h>
38# include <sys/uio.h> 85 #include <signal.h>
39# elif __hpux 86
40# include <sys/socket.h> 87 #define EIO_STRUCT_STAT Stat_t
41# elif __solaris /* not yet */ 88
42# include <sys/sendfile.h> 89#endif
90
91/*****************************************************************************/
92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
43# else 140# else
44# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 142# endif
46#endif 143#endif
47 144
48/* used for struct dirent, AIX doesn't provide it */ 145/* defines all sorts of constants to 0 unless they are already defined */
49#ifndef NAME_MAX 146#include "def0.h"
50# define NAME_MAX 4096
51#endif
52 147
53#ifndef PTHREAD_STACK_MIN 148#ifndef makedev
54/* care for broken platforms, e.g. windows */ 149# define makedev(maj,min) (((maj) << 8) | (min))
55# define PTHREAD_STACK_MIN 16384
56#endif 150#endif
57 151#ifndef major
58#if __ia64 152# define major(dev) ((dev) >> 8)
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
65 157
66/* buffer size for various temporary buffers */ 158#if PAGESIZE <= 0
67#define AIO_BUFSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
68 161
69#define dBUF \ 162/*****************************************************************************/
70 char *aio_buf; \ 163
71 LOCK (wrklock); \ 164static void
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 165fiemap (eio_req *req)
73 UNLOCK (wrklock); \ 166{
74 if (!aio_buf) \ 167 req->result = -1;
168
169#if HAVE_FIEMAP
170 /* assume some c99 */
171 struct fiemap *fiemap = 0;
172 size_t end_offset;
173 int count = req->int3;
174
175 req->flags |= EIO_FLAG_PTR1_FREE;
176
177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
181
182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
183 errno = ENOMEM;
184 if (!fiemap)
75 return -1; 185 return;
76 186
77enum { 187 req->ptr1 = fiemap;
78 REQ_QUIT,
79 REQ_OPEN, REQ_CLOSE,
80 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP,
88 REQ_BUSY,
89};
90 188
91#define AIO_REQ_KLASS "IO::AIO::REQ" 189 fiemap->fm_start = req->offs;
92#define AIO_GRP_KLASS "IO::AIO::GRP" 190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
93 193
94typedef struct aio_cb 194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
95{ 195 return;
96 struct aio_cb *volatile next;
97 196
98 SV *data, *callback; 197 if (req->int3 >= 0 /* not autosizing */
99 SV *fh, *fh2; 198 || !fiemap->fm_mapped_extents /* no more extents */
100 void *dataptr, *data2ptr; 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
101 Stat_t *statdata; 200 goto done;
102 off_t offset;
103 size_t length;
104 ssize_t result;
105 201
106 STRLEN dataoffset; 202 /* else we have to loop -
107 int type; 203 * it would be tempting (actually I tried that first) to just query the
108 int fd, fd2; 204 * number of extents needed, but linux often feels like not returning all
109 int errorno; 205 * extents, without telling us it left any out. this complicates
110 mode_t mode; /* open */ 206 * this quite a bit.
207 */
111 208
112 unsigned char flags; 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
113 unsigned char pri;
114 210
115 SV *self; /* the perl counterpart of this request, if any */ 211 for (;;)
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
117} aio_cb;
118
119enum {
120 FLAG_CANCELLED = 0x01,
121};
122
123typedef aio_cb *aio_req;
124typedef aio_cb *aio_req_ornot;
125
126enum {
127 PRI_MIN = -4,
128 PRI_MAX = 4,
129
130 DEFAULT_PRI = 0,
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134
135static int next_pri = DEFAULT_PRI + PRI_BIAS;
136
137static unsigned int started, wanted;
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146#endif
147
148#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150
151/* worker threads management */
152static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
153
154typedef struct worker {
155 /* locked by wrklock */
156 struct worker *prev, *next;
157
158 pthread_t tid;
159
160 /* locked by reslock, reqlock or wrklock */
161 aio_req req; /* currently processed request */
162 void *dbuf;
163 DIR *dirp;
164} worker;
165
166static worker wrk_first = { &wrk_first, &wrk_first, 0 };
167
168static void worker_clear (worker *wrk)
169{
170 if (wrk->dirp)
171 { 212 {
172 closedir (wrk->dirp); 213 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
173 wrk->dirp = 0; 214 char scratch[3072];
174 } 215 struct fiemap *incmap = (struct fiemap *)scratch;
175 216
176 if (wrk->dbuf) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
177 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
178 free (wrk->dbuf); 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
179 wrk->dbuf = 0; 220 incmap->fm_flags = fiemap->fm_flags;
180 } 221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
181}
182 222
183static void worker_free (worker *wrk) 223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
184{
185 wrk->next->prev = wrk->prev;
186 wrk->prev->next = wrk->next;
187
188 free (wrk);
189}
190
191static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
194
195/*
196 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation.
199 */
200typedef struct {
201 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
202 int size;
203} reqq;
204
205static reqq req_queue;
206static reqq res_queue;
207
208int reqq_push (reqq *q, aio_req req)
209{
210 int pri = req->pri;
211 req->next = 0;
212
213 if (q->qe[pri])
214 {
215 q->qe[pri]->next = req;
216 q->qe[pri] = req;
217 }
218 else
219 q->qe[pri] = q->qs[pri] = req;
220
221 return q->size++;
222}
223
224aio_req reqq_shift (reqq *q)
225{
226 int pri;
227
228 if (!q->size)
229 return 0; 224 return;
230 225
231 --q->size; 226 if (!incmap->fm_mapped_extents)
227 goto done;
232 228
233 for (pri = NUM_PRI; pri--; ) 229 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
234 { 230 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
235 aio_req req = q->qs[pri]; 231 errno = ENOMEM;
236
237 if (req) 232 if (!fiemap)
233 return;
234
235 req->ptr1 = fiemap;
236
237 for (count = 0; count < incmap->fm_mapped_extents; ++count)
238 { 238 {
239 if (!(q->qs[pri] = req->next)) 239 struct fiemap_extent *e = incmap->fm_extents + count;
240 q->qe[pri] = 0;
241 240
242 return req; 241 if (e->fe_logical + e->fe_length >= end_offset)
242 goto done;
243
244 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
245
246 if (e->fe_flags & FIEMAP_EXTENT_LAST)
247 goto done;
248
243 } 249 }
244 } 250 }
245 251
246 abort (); 252done:
247} 253 req->result = 0;
248 254
249static int poll_cb (int max); 255#else
250static void req_invoke (aio_req req); 256 errno = ENOSYS;
257#endif
258}
259
260/*****************************************************************************/
261
262enum {
263 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
264};
265
266typedef eio_req *aio_req;
267typedef eio_req *aio_req_ornot;
268typedef eio_wd aio_wd;
269
270static SV *on_next_submit;
271static int next_pri = EIO_PRI_DEFAULT;
272static int max_outstanding;
273
274static s_epipe respipe;
275
251static void req_free (aio_req req); 276static void req_destroy (aio_req req);
252static void req_cancel (aio_req req); 277static void req_cancel (aio_req req);
253 278
279static void
280want_poll (void)
281{
282 /* write a dummy byte to the pipe so fh becomes ready */
283 s_epipe_signal (&respipe);
284}
285
286static void
287done_poll (void)
288{
289 /* read any signals sent by the worker threads */
290 s_epipe_drain (&respipe);
291}
292
254/* must be called at most once */ 293/* must be called at most once */
255static SV *req_sv (aio_req req, const char *klass) 294static SV *
295req_sv (aio_req req, HV *stash)
256{ 296{
257 if (!req->self) 297 if (!req->self)
258 { 298 {
259 req->self = (SV *)newHV (); 299 req->self = (SV *)newHV ();
260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 300 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
261 } 301 }
262 302
263 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 303 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
264} 304}
265 305
266static aio_req SvAIO_REQ (SV *sv) 306static SV *
307newSVaio_wd (aio_wd wd)
308{
309 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
310}
311
312static aio_req
313SvAIO_REQ (SV *sv)
267{ 314{
268 MAGIC *mg; 315 MAGIC *mg;
269 316
270 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 317 if (!SvROK (sv)
318 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
319 || (SvSTASH (SvRV (sv)) != aio_grp_stash
320 && SvSTASH (SvRV (sv)) != aio_req_stash
321 && !sv_derived_from (sv, "IO::AIO::REQ")))
271 croak ("object of class " AIO_REQ_KLASS " expected"); 322 croak ("object of class IO::AIO::REQ expected");
272 323
273 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 324 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
274 325
275 return mg ? (aio_req)mg->mg_ptr : 0; 326 return mg ? (aio_req)mg->mg_ptr : 0;
276} 327}
277 328
329static aio_wd
330SvAIO_WD (SV *sv)
331{
332 if (!SvROK (sv)
333 || SvTYPE (SvRV (sv)) != SVt_PVMG
334 || SvSTASH (SvRV (sv)) != aio_wd_stash)
335 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
336
337 return (aio_wd)(long)SvIVX (SvRV (sv));
338}
339
340static void
278static void aio_grp_feed (aio_req grp) 341aio_grp_feed (aio_req grp)
279{ 342{
280 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 343 if (grp->sv2 && SvOK (grp->sv2))
281 { 344 {
282 int old_len = grp->length;
283
284 if (grp->fh2 && SvOK (grp->fh2))
285 {
286 dSP; 345 dSP;
287 346
288 ENTER; 347 ENTER;
289 SAVETMPS; 348 SAVETMPS;
290 PUSHMARK (SP); 349 PUSHMARK (SP);
291 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 350 XPUSHs (req_sv (grp, aio_grp_stash));
292 PUTBACK; 351 PUTBACK;
293 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 352 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294 SPAGAIN; 353 SPAGAIN;
295 FREETMPS; 354 FREETMPS;
296 LEAVE; 355 LEAVE;
297 }
298
299 /* stop if no progress has been made */
300 if (old_len == grp->length)
301 {
302 SvREFCNT_dec (grp->fh2);
303 grp->fh2 = 0;
304 break;
305 }
306 } 356 }
307} 357}
308 358
309static void aio_grp_dec (aio_req grp) 359static void
360req_submit (eio_req *req)
310{ 361{
311 --grp->length; 362 eio_submit (req);
312 363
313 /* call feeder, if applicable */ 364 if (expect_false (on_next_submit))
314 aio_grp_feed (grp);
315
316 /* finish, if done */
317 if (!grp->length && grp->fd)
318 { 365 {
319 req_invoke (grp); 366 dSP;
320 req_free (grp); 367 SV *cb = sv_2mortal (on_next_submit);
368
369 on_next_submit = 0;
370
371 PUSHMARK (SP);
372 PUTBACK;
373 call_sv (cb, G_DISCARD | G_EVAL);
321 } 374 }
322} 375}
323 376
324static void poll_wait () 377static int
378req_invoke (eio_req *req)
325{ 379{
326 fd_set rfd; 380 if (req->flags & FLAG_SV2_RO_OFF)
381 SvREADONLY_off (req->sv2);
327 382
328 while (nreqs) 383 if (!EIO_CANCELLED (req) && req->callback)
329 { 384 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req)
350{
351 dSP; 385 dSP;
352 386 static SV *sv_result_cache; /* caches the result integer SV */
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 387 SV *sv_result;
354 {
355 errno = req->errorno;
356 388
357 ENTER; 389 ENTER;
358 SAVETMPS; 390 SAVETMPS;
359 PUSHMARK (SP); 391 PUSHMARK (SP);
360 EXTEND (SP, 1); 392 EXTEND (SP, 1);
361 393
394 /* do not recreate the result IV from scratch each time */
395 if (expect_true (sv_result_cache))
396 {
397 sv_result = sv_result_cache; sv_result_cache = 0;
398 SvIV_set (sv_result, req->result);
399 SvIOK_only (sv_result);
400 }
401 else
402 {
403 sv_result = newSViv (req->result);
404 SvREADONLY_on (sv_result);
405 }
406
362 switch (req->type) 407 switch (req->type)
363 { 408 {
409 case EIO_WD_OPEN:
410 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
411 break;
412
364 case REQ_READDIR: 413 case EIO_READDIR:
365 { 414 {
366 SV *rv = &PL_sv_undef; 415 SV *rv = &PL_sv_undef;
367 416
368 if (req->result >= 0) 417 if (req->result >= 0)
369 { 418 {
370 int i; 419 int i;
371 char *buf = req->data2ptr; 420 char *names = (char *)req->ptr2;
421 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
372 AV *av = newAV (); 422 AV *av = newAV ();
373 423
374 av_extend (av, req->result - 1); 424 av_extend (av, req->result - 1);
375 425
376 for (i = 0; i < req->result; ++i) 426 for (i = 0; i < req->result; ++i)
377 { 427 {
378 SV *sv = newSVpv (buf, 0); 428 if (req->int1 & EIO_READDIR_DENTS)
429 {
430 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
379 431
432 if (req->int1 & EIO_READDIR_CUSTOM2)
433 {
434 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
435 AV *avent = newAV ();
436
437 av_extend (avent, 2);
438
439 if (!sv_type [ent->type])
440 {
441 sv_type [ent->type] = newSViv (ent->type);
442 SvREADONLY_on (sv_type [ent->type]);
443 }
444
445 av_store (avent, 0, namesv);
446 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
447 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
448
449 av_store (av, i, newRV_noinc ((SV *)avent));
450 }
451 else
380 av_store (av, i, sv); 452 av_store (av, i, namesv);
453
454 ++ent;
455 }
456 else
457 {
458 SV *name = newSVpv (names, 0);
459 av_store (av, i, name);
381 buf += SvCUR (sv) + 1; 460 names += SvCUR (name) + 1;
461 }
382 } 462 }
383 463
384 rv = sv_2mortal (newRV_noinc ((SV *)av)); 464 rv = sv_2mortal (newRV_noinc ((SV *)av));
385 } 465 }
386 466
387 PUSHs (rv); 467 PUSHs (rv);
468
469 if (req->int1 & EIO_READDIR_CUSTOM1)
470 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
388 } 471 }
389 break; 472 break;
390 473
391 case REQ_OPEN: 474 case EIO_OPEN:
392 { 475 {
393 /* convert fd to fh */ 476 /* convert fd to fh */
394 SV *fh; 477 SV *fh = &PL_sv_undef;
395 478
396 PUSHs (sv_2mortal (newSViv (req->result))); 479 if (req->result >= 0)
397 PUTBACK; 480 {
398 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 481 GV *gv = (GV *)sv_newmortal ();
399 SPAGAIN; 482 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
483 char sym [64];
484 int symlen;
485
486 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
487 gv_init (gv, aio_stash, sym, symlen, 0);
400 488
401 fh = SvREFCNT_inc (POPs); 489 symlen = snprintf (
490 sym,
491 sizeof (sym),
492 "%s&=%d",
493 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494 (int)req->result
495 );
402 496
497 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
498 fh = (SV *)gv;
499 }
500
403 PUSHMARK (SP); 501 PUSHs (fh);
404 XPUSHs (sv_2mortal (fh));
405 } 502 }
406 break; 503 break;
407 504
505 case EIO_STATVFS:
506 case EIO_FSTATVFS:
507 {
508 SV *rv = &PL_sv_undef;
509
510#ifndef _WIN32
511 if (req->result >= 0)
512 {
513 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
514 HV *hv = newHV ();
515 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
516 * chooses to make it a struct.
517 */
518 unsigned long fsid = 0;
519 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
520
521 rv = sv_2mortal (newRV_noinc ((SV *)hv));
522
523 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
524 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
525 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
526 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
527 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
528 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
529 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
530 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
531 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
532 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
533 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
534 }
535#endif
536
537 PUSHs (rv);
538 }
539
540 break;
541
408 case REQ_GROUP: 542 case EIO_GROUP:
409 req->fd = 2; /* mark group as finished */ 543 req->int1 = 2; /* mark group as finished */
410 544
411 if (req->data) 545 if (req->sv1)
412 { 546 {
413 int i; 547 int i;
414 AV *av = (AV *)req->data; 548 AV *av = (AV *)req->sv1;
415 549
416 EXTEND (SP, AvFILL (av) + 1); 550 EXTEND (SP, AvFILL (av) + 1);
417 for (i = 0; i <= AvFILL (av); ++i) 551 for (i = 0; i <= AvFILL (av); ++i)
418 PUSHs (*av_fetch (av, i, 0)); 552 PUSHs (*av_fetch (av, i, 0));
419 } 553 }
420 break; 554 break;
421 555
422 case REQ_NOP: 556 case EIO_NOP:
423 case REQ_BUSY: 557 case EIO_BUSY:
424 break; 558 break;
425 559
560 case EIO_READLINK:
561 case EIO_REALPATH:
562 if (req->result > 0)
563 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
564 break;
565
566 case EIO_STAT:
567 case EIO_LSTAT:
568 case EIO_FSTAT:
569 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
570
571 if (!(PL_laststatval = req->result))
572 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
573 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
574
575 PUSHs (sv_result);
576 break;
577
578 case EIO_SEEK:
579 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
580 break;
581
582 case EIO_READ:
583 {
584 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
585 *SvEND (req->sv2) = 0;
586 SvPOK_only (req->sv2);
587 SvSETMAGIC (req->sv2);
588 PUSHs (sv_result);
589 }
590 break;
591
592 case EIO_CUSTOM:
593 if (req->feed == fiemap)
594 {
595#if HAVE_FIEMAP
596 if (!req->result)
597 {
598 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
599
600 if (fiemap->fm_extent_count)
601 {
602 AV *av = newAV ();
603 int i;
604
605 while (fiemap->fm_mapped_extents)
606 {
607 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
608 AV *ext_av = newAV ();
609
610 av_store (ext_av, 3, newSVuv (extent->fe_flags));
611 av_store (ext_av, 2, newSVval64 (extent->fe_length));
612 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
613 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
614
615 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
616 }
617
618 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
619 }
620 else
621 {
622 SvIV_set (sv_result, fiemap->fm_mapped_extents);
623 PUSHs (sv_result);
624 }
625 }
626#endif
627 }
628 else
629 PUSHs (sv_result);
630 break;
631
632 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
633 if (req->result > 0)
634 SvIV_set (sv_result, 0);
635 /* FALLTHROUGH */
636
426 default: 637 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 638 PUSHs (sv_result);
428 break; 639 break;
429 } 640 }
430 641
642 errno = req->errorno;
431 643
432 PUTBACK; 644 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 645 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
434 SPAGAIN; 646 SPAGAIN;
647
648 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
649 SvREFCNT_dec (sv_result);
650 else
651 sv_result_cache = sv_result;
435 652
436 FREETMPS; 653 FREETMPS;
437 LEAVE; 654 LEAVE;
655
656 PUTBACK;
438 } 657 }
439 658
440 if (req->grp) 659 return !!SvTRUE (ERRSV);
441 {
442 aio_req grp = req->grp;
443
444 /* unlink request */
445 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
446 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
447
448 if (grp->grp_first == req)
449 grp->grp_first = req->grp_next;
450
451 aio_grp_dec (grp);
452 }
453
454 if (SvTRUE (ERRSV))
455 {
456 req_free (req);
457 croak (0);
458 }
459} 660}
460 661
461static void req_free (aio_req req) 662static void
663req_destroy (aio_req req)
462{ 664{
463 if (req->self) 665 if (req->self)
464 { 666 {
465 sv_unmagic (req->self, PERL_MAGIC_ext); 667 sv_unmagic (req->self, PERL_MAGIC_ext);
466 SvREFCNT_dec (req->self); 668 SvREFCNT_dec (req->self);
467 } 669 }
468 670
469 SvREFCNT_dec (req->data);
470 SvREFCNT_dec (req->fh); 671 SvREFCNT_dec (req->sv1);
471 SvREFCNT_dec (req->fh2); 672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
472 SvREFCNT_dec (req->callback); 675 SvREFCNT_dec (req->callback);
473 Safefree (req->statdata);
474 676
475 if (req->type == REQ_READDIR)
476 free (req->data2ptr);
477
478 Safefree (req); 677 free (req);
479} 678}
480 679
680static void
481static void req_cancel_subs (aio_req grp) 681req_cancel_subs (aio_req grp)
482{ 682{
483 aio_req sub;
484
485 if (grp->type != REQ_GROUP) 683 if (grp->type != EIO_GROUP)
486 return; 684 return;
487 685
488 SvREFCNT_dec (grp->fh2); 686 SvREFCNT_dec (grp->sv2);
489 grp->fh2 = 0; 687 grp->sv2 = 0;
490 688
491 for (sub = grp->grp_first; sub; sub = sub->grp_next) 689 eio_grp_cancel (grp);
492 req_cancel (sub);
493} 690}
494 691
495static void req_cancel (aio_req req) 692static void ecb_cold
693create_respipe (void)
496{ 694{
497 req->flags |= FLAG_CANCELLED; 695 if (s_epipe_renew (&respipe))
498 696 croak ("IO::AIO: unable to initialize result pipe");
499 req_cancel_subs (req);
500} 697}
501 698
502static int poll_cb (int max) 699static void
700poll_wait (void)
503{ 701{
504 dSP; 702 while (eio_nreqs ())
505 int count = 0; 703 {
506 int do_croak = 0; 704 int size;
507 aio_req req;
508 705
706 X_LOCK (reslock);
707 size = res_queue.size;
708 X_UNLOCK (reslock);
709
710 if (size)
711 return;
712
713 etp_maybe_start_thread ();
714
715 s_epipe_wait (&respipe);
716 }
717}
718
719static int
720poll_cb (void)
721{
509 for (;;) 722 for (;;)
510 { 723 {
511 while (max <= 0 || count < max) 724 int res = eio_poll ();
725
726 if (res > 0)
727 croak (0);
728
729 if (!max_outstanding || max_outstanding > eio_nreqs ())
730 return res;
731
732 poll_wait ();
733 }
734}
735
736static void ecb_cold
737reinit (void)
738{
739 create_respipe ();
740
741 if (eio_init (want_poll, done_poll) < 0)
742 croak ("IO::AIO: unable to initialise eio library");
743}
744
745/*****************************************************************************/
746
747#if !_POSIX_MAPPED_FILES
748# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
749# define munmap(addr,length) EIO_ENOSYS ()
750#endif
751
752#if !_POSIX_MEMORY_PROTECTION
753# define mprotect(addr,len,prot) EIO_ENOSYS ()
754# define PROT_NONE 0
755# define PROT_WRITE 0
756# define MAP_PRIVATE 0
757# define MAP_SHARED 0
758# define MAP_FIXED 0
759#endif
760
761#define MMAP_MAGIC PERL_MAGIC_ext
762
763static int ecb_cold
764mmap_free (pTHX_ SV *sv, MAGIC *mg)
765{
766 int old_errno = errno;
767 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
768 errno = old_errno;
769
770 mg->mg_obj = 0; /* just in case */
771
772 SvREADONLY_off (sv);
773
774 if (SvPVX (sv) != mg->mg_ptr)
775 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
776
777 SvCUR_set (sv, 0);
778 SvPVX (sv) = 0;
779 SvOK_off (sv);
780
781 return 0;
782}
783
784static MGVTBL mmap_vtbl = {
785 0, 0, 0, 0, mmap_free
786};
787
788/*****************************************************************************/
789
790static SV *
791get_cb (SV *cb_sv)
792{
793 SvGETMAGIC (cb_sv);
794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
795}
796
797static aio_req ecb_noinline
798dreq (SV *callback)
799{
800 SV *cb_cv;
801 aio_req req;
802 int req_pri = next_pri;
803 next_pri = EIO_PRI_DEFAULT;
804
805 cb_cv = get_cb (callback);
806
807 req = calloc (sizeof (*req), 1);
808 if (!req)
809 croak ("out of memory during eio_req allocation");
810
811 req->callback = SvREFCNT_inc (cb_cv);
812 req->pri = req_pri;
813
814 return req;
815}
816
817#define dREQ \
818 aio_req req = dreq (callback); \
819
820#define REQ_SEND \
821 PUTBACK; \
822 req_submit (req); \
823 SPAGAIN; \
824 \
825 if (GIMME_V != G_VOID) \
826 XPUSHs (req_sv (req, aio_req_stash));
827
828ecb_inline void
829req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
830{
831 if (expect_false (SvROK (path)))
832 {
833 SV *rv = SvRV (path);
834 SV *wdob;
835
836 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
512 { 837 {
513 LOCK (reslock); 838 path = AvARRAY (rv)[1];
514 req = reqq_shift (&res_queue); 839 wdob = AvARRAY (rv)[0];
515 840
516 if (req) 841 if (SvOK (wdob))
517 { 842 {
518 if (!res_queue.size) 843 *wd = SvAIO_WD (wdob);
519 { 844 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
520 /* read any signals sent by the worker threads */
521 char buf [32];
522 while (read (respipe [0], buf, 32) == 32)
523 ;
524 }
525 }
526
527 UNLOCK (reslock);
528
529 if (!req)
530 break;
531
532 --nreqs;
533
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length)
537 {
538 req->fd = 1; /* mark request as delayed */
539 continue;
540 } 845 }
541 else 846 else
542 { 847 *wd = EIO_INVALID_WD;
543 if (req->type == REQ_READ)
544 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547 SvREADONLY_off (req->data);
548
549 if (req->statdata)
550 {
551 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552 PL_laststatval = req->result;
553 PL_statcache = *(req->statdata);
554 }
555
556 req_invoke (req);
557
558 count++;
559 }
560
561 req_free (req);
562 } 848 }
849 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
850 {
851 *wd = (aio_wd)(long)SvIVX (rv);
852 *wdsv = SvREFCNT_inc_NN (rv);
853 *ptr = ".";
854 return; /* path set to "." */
855 }
856 else
857 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
858 }
563 859
564 if (nreqs <= max_outstanding) 860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
565 break; 883 break;
566 884
567 poll_wait (); 885 default:
568 886 req->type = type_path;
569 max = 0; 887 req_set_path1 (req, fh_or_path);
888 break;
570 } 889 }
571
572 return count;
573} 890}
574 891
575static void *aio_proc(void *arg); 892XS(boot_IO__AIO) ecb_cold;
576 893
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void req_send (aio_req req)
612{
613 while (started < wanted && nreqs >= started)
614 start_thread ();
615
616 ++nreqs;
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 {
651 end_thread ();
652 cur--;
653 }
654
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660}
661
662static void create_pipe ()
663{
664 if (pipe (respipe))
665 croak ("unable to initialize result pipe");
666
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668 croak ("cannot set result pipe to nonblocking mode");
669
670 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671 croak ("cannot set result pipe to nonblocking mode");
672}
673
674/*****************************************************************************/
675/* work around various missing functions */
676
677#if !HAVE_PREADWRITE
678# define pread aio_pread
679# define pwrite aio_pwrite
680
681/*
682 * make our pread/pwrite safe against themselves, but not against
683 * normal read/write by using a mutex. slows down execution a lot,
684 * but that's your problem, not mine.
685 */
686static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
687
688static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
689{
690 ssize_t res;
691 off_t ooffset;
692
693 LOCK (preadwritelock);
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = read (fd, buf, count);
697 lseek (fd, ooffset, SEEK_SET);
698 UNLOCK (preadwritelock);
699
700 return res;
701}
702
703static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
704{
705 ssize_t res;
706 off_t ooffset;
707
708 LOCK (preadwritelock);
709 ooffset = lseek (fd, 0, SEEK_CUR);
710 lseek (fd, offset, SEEK_SET);
711 res = write (fd, buf, count);
712 lseek (fd, offset, SEEK_SET);
713 UNLOCK (preadwritelock);
714
715 return res;
716}
717#endif
718
719#if !HAVE_FDATASYNC
720# define fdatasync fsync
721#endif
722
723#if !HAVE_READAHEAD
724# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725
726static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
727{
728 dBUF;
729
730 while (count > 0)
731 {
732 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
733
734 pread (fd, aio_buf, len, offset);
735 offset += len;
736 count -= len;
737 }
738
739 errno = 0;
740}
741
742#endif
743
744#if !HAVE_READDIR_R
745# define readdir_r aio_readdir_r
746
747static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
748
749static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
750{
751 struct dirent *e;
752 int errorno;
753
754 LOCK (readdirlock);
755
756 e = readdir (dirp);
757 errorno = errno;
758
759 if (e)
760 {
761 *res = ent;
762 strcpy (ent->d_name, e->d_name);
763 }
764 else
765 *res = 0;
766
767 UNLOCK (readdirlock);
768
769 errno = errorno;
770 return e ? 0 : -1;
771}
772#endif
773
774/* sendfile always needs emulation */
775static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
776{
777 ssize_t res;
778
779 if (!count)
780 return 0;
781
782#if HAVE_SENDFILE
783# if __linux
784 res = sendfile (ofd, ifd, &offset, count);
785
786# elif __freebsd
787 /*
788 * Of course, the freebsd sendfile is a dire hack with no thoughts
789 * wasted on making it similar to other I/O functions.
790 */
791 {
792 off_t sbytes;
793 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
794
795 if (res < 0 && sbytes)
796 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
797 res = sbytes;
798 }
799
800# elif __hpux
801 res = sendfile (ofd, ifd, offset, count, 0, 0);
802
803# elif __solaris
804 {
805 struct sendfilevec vec;
806 size_t sbytes;
807
808 vec.sfv_fd = ifd;
809 vec.sfv_flag = 0;
810 vec.sfv_off = offset;
811 vec.sfv_len = count;
812
813 res = sendfilev (ofd, &vec, 1, &sbytes);
814
815 if (res < 0 && sbytes)
816 res = sbytes;
817 }
818
819# endif
820#else
821 res = -1;
822 errno = ENOSYS;
823#endif
824
825 if (res < 0
826 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
827#if __solaris
828 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
829#endif
830 )
831 )
832 {
833 /* emulate sendfile. this is a major pain in the ass */
834 dBUF;
835
836 res = 0;
837
838 while (count)
839 {
840 ssize_t cnt;
841
842 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
843
844 if (cnt <= 0)
845 {
846 if (cnt && !res) res = -1;
847 break;
848 }
849
850 cnt = write (ofd, aio_buf, cnt);
851
852 if (cnt <= 0)
853 {
854 if (cnt && !res) res = -1;
855 break;
856 }
857
858 offset += cnt;
859 res += cnt;
860 count -= cnt;
861 }
862 }
863
864 return res;
865}
866
867/* read a full directory */
868static void scandir_ (aio_req req, worker *self)
869{
870 DIR *dirp;
871 union
872 {
873 struct dirent d;
874 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
875 } *u;
876 struct dirent *entp;
877 char *name, *names;
878 int memlen = 4096;
879 int memofs = 0;
880 int res = 0;
881 int errorno;
882
883 LOCK (wrklock);
884 self->dirp = dirp = opendir (req->dataptr);
885 self->dbuf = u = malloc (sizeof (*u));
886 req->data2ptr = names = malloc (memlen);
887 UNLOCK (wrklock);
888
889 if (dirp && u && names)
890 for (;;)
891 {
892 errno = 0;
893 readdir_r (dirp, &u->d, &entp);
894
895 if (!entp)
896 break;
897
898 name = entp->d_name;
899
900 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
901 {
902 int len = strlen (name) + 1;
903
904 res++;
905
906 while (memofs + len > memlen)
907 {
908 memlen *= 2;
909 LOCK (wrklock);
910 req->data2ptr = names = realloc (names, memlen);
911 UNLOCK (wrklock);
912
913 if (!names)
914 break;
915 }
916
917 memcpy (names + memofs, name, len);
918 memofs += len;
919 }
920 }
921
922 if (errno)
923 res = -1;
924
925 req->result = res;
926}
927
928/*****************************************************************************/
929
930static void *aio_proc (void *thr_arg)
931{
932 aio_req req;
933 int type;
934 worker *self = (worker *)thr_arg;
935
936 do
937 {
938 LOCK (reqlock);
939
940 for (;;)
941 {
942 self->req = req = reqq_shift (&req_queue);
943
944 if (req)
945 break;
946
947 pthread_cond_wait (&reqwait, &reqlock);
948 }
949
950 UNLOCK (reqlock);
951
952 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954
955 if (!(req->flags & FLAG_CANCELLED))
956 switch (type)
957 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
962 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
963
964 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
965 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
966 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
967
968 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
969 case REQ_CLOSE: req->result = close (req->fd); break;
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
975
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break;
979
980 case REQ_BUSY:
981 {
982 struct timeval tv;
983
984 tv.tv_sec = req->fd;
985 tv.tv_usec = req->fd2;
986
987 req->result = select (0, 0, 0, 0, &tv);
988 }
989
990 case REQ_GROUP:
991 case REQ_NOP:
992 case REQ_QUIT:
993 break;
994
995 default:
996 req->result = ENOSYS;
997 break;
998 }
999
1000 req->errorno = errno;
1001
1002 LOCK (reslock);
1003
1004 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1);
1007
1008 self->req = 0;
1009 worker_clear (self);
1010
1011 UNLOCK (reslock);
1012 }
1013 while (type != REQ_QUIT);
1014
1015 LOCK (wrklock);
1016 worker_free (self);
1017 UNLOCK (wrklock);
1018
1019 return 0;
1020}
1021
1022/*****************************************************************************/
1023
1024static void atfork_prepare (void)
1025{
1026 LOCK (wrklock);
1027 LOCK (reqlock);
1028 LOCK (reslock);
1029#if !HAVE_PREADWRITE
1030 LOCK (preadwritelock);
1031#endif
1032#if !HAVE_READDIR_R
1033 LOCK (readdirlock);
1034#endif
1035}
1036
1037static void atfork_parent (void)
1038{
1039#if !HAVE_READDIR_R
1040 UNLOCK (readdirlock);
1041#endif
1042#if !HAVE_PREADWRITE
1043 UNLOCK (preadwritelock);
1044#endif
1045 UNLOCK (reslock);
1046 UNLOCK (reqlock);
1047 UNLOCK (wrklock);
1048}
1049
1050static void atfork_child (void)
1051{
1052 aio_req prv;
1053
1054 while (prv = reqq_shift (&req_queue))
1055 req_free (prv);
1056
1057 while (prv = reqq_shift (&res_queue))
1058 req_free (prv);
1059
1060 while (wrk_first.next != &wrk_first)
1061 {
1062 worker *wrk = wrk_first.next;
1063
1064 if (wrk->req)
1065 req_free (wrk->req);
1066
1067 worker_clear (wrk);
1068 worker_free (wrk);
1069 }
1070
1071 started = 0;
1072 nreqs = 0;
1073
1074 close (respipe [0]);
1075 close (respipe [1]);
1076 create_pipe ();
1077
1078 atfork_parent ();
1079}
1080
1081#define dREQ \
1082 aio_req req; \
1083 int req_pri = next_pri; \
1084 next_pri = DEFAULT_PRI + PRI_BIAS; \
1085 \
1086 if (SvOK (callback) && !SvROK (callback)) \
1087 croak ("callback must be undef or of reference type"); \
1088 \
1089 Newz (0, req, 1, aio_cb); \
1090 if (!req) \
1091 croak ("out of memory during aio_req allocation"); \
1092 \
1093 req->callback = newSVsv (callback); \
1094 req->pri = req_pri
1095
1096#define REQ_SEND \
1097 req_send (req); \
1098 \
1099 if (GIMME_V != G_VOID) \
1100 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1101
1102MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1103 895
1104PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1105 897
1106BOOT: 898BOOT:
1107{ 899{
900 static const struct {
901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907
908 /* you have to re-run ./gendef0 after adding/Removing any constants here */
909
910 const_iv (ENOSYS)
911 const_iv (EXDEV)
912 const_iv (EBADR)
913
914 const_iv (O_RDONLY)
915 const_iv (O_WRONLY)
916 const_iv (O_RDWR)
917 const_iv (O_CREAT)
918 const_iv (O_TRUNC)
919 const_iv (O_EXCL)
920 const_iv (O_APPEND)
921
922 const_iv (O_ASYNC)
923 const_iv (O_DIRECT)
924 const_iv (O_NOATIME)
925
926 const_iv (O_CLOEXEC)
927 const_iv (O_NOCTTY)
928 const_iv (O_NOFOLLOW)
929 const_iv (O_NONBLOCK)
930 const_iv (O_EXEC)
931 const_iv (O_SEARCH)
932 const_iv (O_DIRECTORY)
933 const_iv (O_DSYNC)
934 const_iv (O_RSYNC)
935 const_iv (O_SYNC)
936 const_iv (O_TTY_INIT)
937
938 const_iv (S_IFIFO)
939 const_iv (S_IFCHR)
940 const_iv (S_IFBLK)
941 const_iv (S_IFLNK)
942 const_iv (S_IFREG)
943 const_iv (S_IFDIR)
944 const_iv (S_IFWHT)
945 const_iv (S_IFSOCK)
946 const_iv (S_IFMT)
947
948 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
949 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
950 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
951 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
952 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
953 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
954
955 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
956 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
957 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
958 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
959 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
960
961 const_iv (ST_RDONLY)
962 const_iv (ST_NOSUID)
963 const_iv (ST_NODEV)
964 const_iv (ST_NOEXEC)
965 const_iv (ST_SYNCHRONOUS)
966 const_iv (ST_MANDLOCK)
967 const_iv (ST_WRITE)
968 const_iv (ST_APPEND)
969 const_iv (ST_IMMUTABLE)
970 const_iv (ST_NOATIME)
971 const_iv (ST_NODIRATIME)
972 const_iv (ST_RELATIME)
973
974 const_iv (PROT_NONE)
975 const_iv (PROT_EXEC)
976 const_iv (PROT_READ)
977 const_iv (PROT_WRITE)
978
979 /*const_iv (MAP_FIXED)*/
980 const_iv (MAP_PRIVATE)
981 const_iv (MAP_SHARED)
982 const_iv (MAP_ANONYMOUS)
983
984 /* linuxish */
985 const_iv (MAP_HUGETLB)
986 const_iv (MAP_LOCKED)
987 const_iv (MAP_NORESERVE)
988 const_iv (MAP_POPULATE)
989 const_iv (MAP_NONBLOCK)
990
991 const_iv (FIEMAP_FLAG_SYNC)
992 const_iv (FIEMAP_FLAG_XATTR)
993 const_iv (FIEMAP_FLAGS_COMPAT)
994 const_iv (FIEMAP_EXTENT_LAST)
995 const_iv (FIEMAP_EXTENT_UNKNOWN)
996 const_iv (FIEMAP_EXTENT_DELALLOC)
997 const_iv (FIEMAP_EXTENT_ENCODED)
998 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
999 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1000 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1001 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1002 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1003 const_iv (FIEMAP_EXTENT_MERGED)
1004 const_iv (FIEMAP_EXTENT_SHARED)
1005
1006 const_iv (SPLICE_F_MOVE)
1007 const_iv (SPLICE_F_NONBLOCK)
1008 const_iv (SPLICE_F_MORE)
1009 const_iv (SPLICE_F_GIFT)
1010
1011 const_iv (SEEK_DATA)
1012 const_iv (SEEK_HOLE)
1013
1014 /* libeio constants */
1015 const_eio (SEEK_SET)
1016 const_eio (SEEK_CUR)
1017 const_eio (SEEK_END)
1018
1019 const_eio (MCL_FUTURE)
1020 const_eio (MCL_CURRENT)
1021
1022 const_eio (MS_ASYNC)
1023 const_eio (MS_INVALIDATE)
1024 const_eio (MS_SYNC)
1025
1026 const_eio (MT_MODIFY)
1027
1028 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1029 const_eio (SYNC_FILE_RANGE_WRITE)
1030 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1031
1032 const_eio (FALLOC_FL_KEEP_SIZE)
1033 const_eio (FALLOC_FL_PUNCH_HOLE)
1034
1035 const_eio (READDIR_DENTS)
1036 const_eio (READDIR_DIRS_FIRST)
1037 const_eio (READDIR_STAT_ORDER)
1038 const_eio (READDIR_FOUND_UNKNOWN)
1039
1040 const_eio (DT_UNKNOWN)
1041 const_eio (DT_FIFO)
1042 const_eio (DT_CHR)
1043 const_eio (DT_DIR)
1044 const_eio (DT_BLK)
1045 const_eio (DT_REG)
1046 const_eio (DT_LNK)
1047 const_eio (DT_SOCK)
1048 const_eio (DT_WHT)
1049 };
1050
1108 HV *stash = gv_stashpv ("IO::AIO", 1); 1051 aio_stash = gv_stashpv ("IO::AIO" , 1);
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1052 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1053 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1054 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1112 1055
1113 create_pipe (); 1056 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1057 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1115}
1116 1058
1059 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1060
1061 reinit ();
1062}
1063
1117void 1064void
1118min_parallel (int nthreads) 1065reinit ()
1119 PROTOTYPE: $ 1066 PROTOTYPE:
1120 1067
1121void 1068void
1122max_parallel (int nthreads) 1069max_poll_reqs (unsigned int nreqs)
1123 PROTOTYPE: $
1124
1125int
1126max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 1070 PROTOTYPE: $
1128 CODE: 1071 CODE:
1129 RETVAL = max_outstanding; 1072 eio_set_max_poll_reqs (nreqs);
1073
1074void
1075max_poll_time (double nseconds)
1076 PROTOTYPE: $
1077 CODE:
1078 eio_set_max_poll_time (nseconds);
1079
1080void
1081min_parallel (unsigned int nthreads)
1082 PROTOTYPE: $
1083 CODE:
1084 eio_set_min_parallel (nthreads);
1085
1086void
1087max_parallel (unsigned int nthreads)
1088 PROTOTYPE: $
1089 CODE:
1090 eio_set_max_parallel (nthreads);
1091
1092void
1093max_idle (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_idle (nthreads);
1097
1098void
1099idle_timeout (unsigned int seconds)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_idle_timeout (seconds);
1103
1104void
1105max_outstanding (unsigned int maxreqs)
1106 PROTOTYPE: $
1107 CODE:
1130 max_outstanding = maxreqs; 1108 max_outstanding = maxreqs;
1131 OUTPUT:
1132 RETVAL
1133 1109
1134void 1110void
1135aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1111aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1136 SV * pathname
1137 int flags
1138 int mode
1139 SV * callback
1140 PROTOTYPE: $$$;$
1141 PPCODE: 1112 PPCODE:
1142{ 1113{
1143 dREQ; 1114 dREQ;
1144 1115
1145 req->type = REQ_OPEN; 1116 req->type = EIO_WD_OPEN;
1146 req->data = newSVsv (pathname); 1117 req_set_path1 (req, pathname);
1147 req->dataptr = SvPVbyte_nolen (req->data);
1148 req->fd = flags;
1149 req->mode = mode;
1150 1118
1151 REQ_SEND; 1119 REQ_SEND;
1152} 1120}
1153 1121
1154void 1122void
1123aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1124 PPCODE:
1125{
1126 dREQ;
1127
1128 req->type = EIO_OPEN;
1129 req_set_path1 (req, pathname);
1130 req->int1 = flags;
1131 req->int2 = mode;
1132
1133 REQ_SEND;
1134}
1135
1136void
1155aio_close (fh,callback=&PL_sv_undef) 1137aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1156 SV * fh
1157 SV * callback
1158 PROTOTYPE: $;$
1159 ALIAS: 1138 ALIAS:
1160 aio_close = REQ_CLOSE
1161 aio_fsync = REQ_FSYNC 1139 aio_fsync = EIO_FSYNC
1162 aio_fdatasync = REQ_FDATASYNC 1140 aio_fdatasync = EIO_FDATASYNC
1141 aio_syncfs = EIO_SYNCFS
1163 PPCODE: 1142 PPCODE:
1164{ 1143{
1144 int fd = s_fileno_croak (fh, 0);
1165 dREQ; 1145 dREQ;
1166 1146
1167 req->type = ix; 1147 req->type = ix;
1168 req->fh = newSVsv (fh); 1148 req->sv1 = newSVsv (fh);
1169 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1149 req->int1 = fd;
1170 1150
1171 REQ_SEND (req); 1151 REQ_SEND;
1172} 1152}
1173 1153
1174void 1154void
1155aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 int fd = s_fileno_croak (fh, 0);
1159 dREQ;
1160
1161 req->type = EIO_SYNC_FILE_RANGE;
1162 req->sv1 = newSVsv (fh);
1163 req->int1 = fd;
1164 req->offs = offset;
1165 req->size = nbytes;
1166 req->int2 = flags;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1173 PPCODE:
1174{
1175 int fd = s_fileno_croak (fh, 0);
1176 dREQ;
1177
1178 req->type = EIO_FALLOCATE;
1179 req->sv1 = newSVsv (fh);
1180 req->int1 = fd;
1181 req->int2 = mode;
1182 req->offs = offset;
1183 req->size = len;
1184
1185 REQ_SEND;
1186}
1187
1188void
1189aio_close (SV *fh, SV *callback=&PL_sv_undef)
1190 PPCODE:
1191{
1192 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1193 int fd = s_fileno_croak (fh, 0);
1194 dREQ;
1195
1196 if (expect_false (close_fd < 0))
1197 {
1198 int pipefd [2];
1199
1200 if (
1201#ifdef _WIN32
1202 _pipe (pipefd, 1, _O_BINARY) < 0
1203#else
1204 pipe (pipefd) < 0
1205 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1206#endif
1207 || close (pipefd [1]) < 0
1208 )
1209 abort (); /*D*/
1210
1211 close_fd = pipefd [0];
1212 }
1213
1214 req->type = EIO_DUP2;
1215 req->int1 = close_fd;
1216 req->sv2 = newSVsv (fh);
1217 req->int2 = fd;
1218
1219 REQ_SEND;
1220}
1221
1222void
1223aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1224 PPCODE:
1225{
1226 int fd = s_fileno_croak (fh, 0);
1227 dREQ;
1228
1229 req->type = EIO_SEEK;
1230 req->sv1 = newSVsv (fh);
1231 req->int1 = fd;
1232 req->offs = SvVAL64 (offset);
1233 req->int2 = whence;
1234
1235 REQ_SEND;
1236}
1237
1238void
1175aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1239aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 UV length
1179 SV * data
1180 UV dataoffset
1181 SV * callback
1182 ALIAS: 1240 ALIAS:
1183 aio_read = REQ_READ 1241 aio_read = EIO_READ
1184 aio_write = REQ_WRITE 1242 aio_write = EIO_WRITE
1185 PROTOTYPE: $$$$$;$
1186 PPCODE: 1243 PPCODE:
1187{ 1244{
1188 aio_req req;
1189 STRLEN svlen; 1245 STRLEN svlen;
1246 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1190 char *svptr = SvPVbyte (data, svlen); 1247 char *svptr = SvPVbyte (data, svlen);
1191 1248 UV len = SvUV (length);
1192 SvUPGRADE (data, SVt_PV);
1193 SvPOK_on (data);
1194 1249
1195 if (dataoffset < 0) 1250 if (dataoffset < 0)
1196 dataoffset += svlen; 1251 dataoffset += svlen;
1197 1252
1198 if (dataoffset < 0 || dataoffset > svlen) 1253 if (dataoffset < 0 || dataoffset > svlen)
1199 croak ("data offset outside of string"); 1254 croak ("dataoffset outside of data scalar");
1200 1255
1201 if (ix == REQ_WRITE) 1256 if (ix == EIO_WRITE)
1202 { 1257 {
1203 /* write: check length and adjust. */ 1258 /* write: check length and adjust. */
1204 if (length < 0 || length + dataoffset > svlen) 1259 if (!SvOK (length) || len + dataoffset > svlen)
1205 length = svlen - dataoffset; 1260 len = svlen - dataoffset;
1206 } 1261 }
1207 else 1262 else
1208 { 1263 {
1209 /* read: grow scalar as necessary */ 1264 /* read: check type and grow scalar as necessary */
1265 SvUPGRADE (data, SVt_PV);
1266 if (SvLEN (data) >= SvCUR (data))
1210 svptr = SvGROW (data, length + dataoffset); 1267 svptr = SvGROW (data, len + dataoffset + 1);
1268 else if (SvCUR (data) < len + dataoffset)
1269 croak ("length + dataoffset outside of scalar, and cannot grow");
1211 } 1270 }
1212
1213 if (length < 0)
1214 croak ("length must not be negative");
1215 1271
1216 { 1272 {
1217 dREQ; 1273 dREQ;
1218 1274
1219 req->type = ix; 1275 req->type = ix;
1220 req->fh = newSVsv (fh); 1276 req->sv1 = newSVsv (fh);
1221 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1277 req->int1 = fd;
1222 : IoOFP (sv_2io (fh))); 1278 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223 req->offset = offset; 1279 req->size = len;
1224 req->length = length;
1225 req->data = SvREFCNT_inc (data); 1280 req->sv2 = SvREFCNT_inc (data);
1226 req->dataptr = (char *)svptr + dataoffset; 1281 req->ptr2 = (char *)svptr + dataoffset;
1282 req->stroffset = dataoffset;
1227 1283
1228 if (!SvREADONLY (data)) 1284 if (!SvREADONLY (data))
1229 { 1285 {
1230 SvREADONLY_on (data); 1286 SvREADONLY_on (data);
1231 req->data2ptr = (void *)data; 1287 req->flags |= FLAG_SV2_RO_OFF;
1232 } 1288 }
1233 1289
1234 REQ_SEND; 1290 REQ_SEND;
1235 } 1291 }
1236} 1292}
1237 1293
1238void 1294void
1239aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1295aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1240 SV * out_fh 1296 ALIAS:
1241 SV * in_fh 1297 aio_readlink = EIO_READLINK
1242 UV in_offset 1298 aio_realpath = EIO_REALPATH
1243 UV length
1244 SV * callback
1245 PROTOTYPE: $$$$;$
1246 PPCODE: 1299 PPCODE:
1247{ 1300{
1301 dREQ;
1302
1303 req->type = ix;
1304 req_set_path1 (req, pathname);
1305
1306 REQ_SEND;
1307}
1308
1309void
1310aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1311 PPCODE:
1312{
1313 int ifd = s_fileno_croak (in_fh , 0);
1314 int ofd = s_fileno_croak (out_fh, 1);
1248 dREQ; 1315 dREQ;
1249 1316
1250 req->type = REQ_SENDFILE; 1317 req->type = EIO_SENDFILE;
1251 req->fh = newSVsv (out_fh); 1318 req->sv1 = newSVsv (out_fh);
1252 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1319 req->int1 = ofd;
1253 req->fh2 = newSVsv (in_fh); 1320 req->sv2 = newSVsv (in_fh);
1254 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1321 req->int2 = ifd;
1255 req->offset = in_offset; 1322 req->offs = in_offset;
1256 req->length = length; 1323 req->size = length;
1257 1324
1258 REQ_SEND; 1325 REQ_SEND;
1259} 1326}
1260 1327
1261void 1328void
1262aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1329aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1263 SV * fh
1264 UV offset
1265 IV length
1266 SV * callback
1267 PROTOTYPE: $$$;$
1268 PPCODE: 1330 PPCODE:
1269{ 1331{
1332 int fd = s_fileno_croak (fh, 0);
1270 dREQ; 1333 dREQ;
1271 1334
1272 req->type = REQ_READAHEAD; 1335 req->type = EIO_READAHEAD;
1273 req->fh = newSVsv (fh); 1336 req->sv1 = newSVsv (fh);
1274 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1337 req->int1 = fd;
1275 req->offset = offset; 1338 req->offs = offset;
1276 req->length = length; 1339 req->size = length;
1277 1340
1278 REQ_SEND; 1341 REQ_SEND;
1279} 1342}
1280 1343
1281void 1344void
1282aio_stat (fh_or_path,callback=&PL_sv_undef) 1345aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1283 SV * fh_or_path
1284 SV * callback
1285 ALIAS: 1346 ALIAS:
1286 aio_stat = REQ_STAT 1347 aio_stat = EIO_STAT
1287 aio_lstat = REQ_LSTAT 1348 aio_lstat = EIO_LSTAT
1349 aio_statvfs = EIO_STATVFS
1288 PPCODE: 1350 PPCODE:
1289{ 1351{
1290 dREQ; 1352 dREQ;
1291 1353
1292 New (0, req->statdata, 1, Stat_t); 1354 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1293 if (!req->statdata)
1294 {
1295 req_free (req);
1296 croak ("out of memory during aio_req->statdata allocation");
1297 }
1298
1299 if (SvPOK (fh_or_path))
1300 {
1301 req->type = ix;
1302 req->data = newSVsv (fh_or_path);
1303 req->dataptr = SvPVbyte_nolen (req->data);
1304 }
1305 else
1306 {
1307 req->type = REQ_FSTAT;
1308 req->fh = newSVsv (fh_or_path);
1309 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1310 }
1311 1355
1312 REQ_SEND; 1356 REQ_SEND;
1313} 1357}
1314 1358
1359UV
1360major (UV dev)
1361 ALIAS:
1362 minor = 1
1363 CODE:
1364 RETVAL = ix ? major (dev) : minor (dev);
1365 OUTPUT:
1366 RETVAL
1367
1368UV
1369makedev (UV maj, UV min)
1370 CODE:
1371 RETVAL = makedev (maj, min);
1372 OUTPUT:
1373 RETVAL
1374
1315void 1375void
1376aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1377 PPCODE:
1378{
1379 dREQ;
1380
1381 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1382 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1383 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1384
1385 REQ_SEND;
1386}
1387
1388void
1389aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1390 PPCODE:
1391{
1392 dREQ;
1393
1394 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1395 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1402 PPCODE:
1403{
1404 dREQ;
1405
1406 req->int2 = mode;
1407 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1408
1409 REQ_SEND;
1410}
1411
1412void
1413aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1414 PPCODE:
1415{
1416 dREQ;
1417
1418 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1419 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1420 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1421
1422 REQ_SEND;
1423}
1424
1425void
1426aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1427 PPCODE:
1428{
1429 dREQ;
1430
1431 req->type = EIO_READDIR;
1432 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1433
1434 if (flags & EIO_READDIR_DENTS)
1435 req->int1 |= EIO_READDIR_CUSTOM2;
1436
1437 req_set_path1 (req, pathname);
1438
1439 REQ_SEND;
1440}
1441
1442void
1443aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1444 PPCODE:
1445{
1446 dREQ;
1447
1448 req->type = EIO_MKDIR;
1449 req->int2 = mode;
1450 req_set_path1 (req, pathname);
1451
1452 REQ_SEND;
1453}
1454
1455void
1316aio_unlink (pathname,callback=&PL_sv_undef) 1456aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1317 SV * pathname
1318 SV * callback
1319 ALIAS: 1457 ALIAS:
1320 aio_unlink = REQ_UNLINK 1458 aio_unlink = EIO_UNLINK
1321 aio_rmdir = REQ_RMDIR 1459 aio_rmdir = EIO_RMDIR
1322 aio_readdir = REQ_READDIR 1460 aio_readdir = EIO_READDIR
1323 PPCODE: 1461 PPCODE:
1324{ 1462{
1325 dREQ; 1463 dREQ;
1326 1464
1327 req->type = ix; 1465 req->type = ix;
1328 req->data = newSVsv (pathname); 1466 req_set_path1 (req, pathname);
1329 req->dataptr = SvPVbyte_nolen (req->data); 1467
1330
1331 REQ_SEND; 1468 REQ_SEND;
1332} 1469}
1333 1470
1334void 1471void
1335aio_link (oldpath,newpath,callback=&PL_sv_undef) 1472aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1336 SV * oldpath
1337 SV * newpath
1338 SV * callback
1339 ALIAS: 1473 ALIAS:
1340 aio_link = REQ_LINK 1474 aio_link = EIO_LINK
1341 aio_symlink = REQ_SYMLINK 1475 aio_symlink = EIO_SYMLINK
1342 aio_rename = REQ_RENAME 1476 aio_rename = EIO_RENAME
1343 PPCODE: 1477 PPCODE:
1344{ 1478{
1479 eio_wd wd2 = 0;
1345 dREQ; 1480 dREQ;
1346 1481
1347 req->type = ix; 1482 req->type = ix;
1348 req->fh = newSVsv (oldpath); 1483 req_set_path1 (req, oldpath);
1349 req->data2ptr = SvPVbyte_nolen (req->fh); 1484 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1350 req->data = newSVsv (newpath); 1485 req->int3 = (long)wd2;
1351 req->dataptr = SvPVbyte_nolen (req->data);
1352 1486
1353 REQ_SEND; 1487 REQ_SEND;
1354} 1488}
1355 1489
1356void 1490void
1357aio_busy (delay,callback=&PL_sv_undef) 1491aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1358 double delay
1359 SV * callback
1360 PPCODE: 1492 PPCODE:
1361{ 1493{
1362 dREQ; 1494 dREQ;
1363 1495
1364 req->type = REQ_BUSY; 1496 req->type = EIO_MKNOD;
1365 req->fd = delay < 0. ? 0 : delay; 1497 req->int2 = (mode_t)mode;
1366 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1498 req->offs = dev;
1367 1499 req_set_path1 (req, pathname);
1500
1368 REQ_SEND; 1501 REQ_SEND;
1369} 1502}
1370 1503
1371void 1504void
1372aio_group (callback=&PL_sv_undef) 1505aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1373 SV * callback 1506 ALIAS:
1374 PROTOTYPE: ;$ 1507 aio_mtouch = EIO_MTOUCH
1508 aio_msync = EIO_MSYNC
1375 PPCODE: 1509 PPCODE:
1376{ 1510{
1511 STRLEN svlen;
1512 char *svptr = SvPVbyte (data, svlen);
1513 UV len = SvUV (length);
1514
1515 if (offset < 0)
1516 offset += svlen;
1517
1518 if (offset < 0 || offset > svlen)
1519 croak ("offset outside of scalar");
1520
1521 if (!SvOK (length) || len + offset > svlen)
1522 len = svlen - offset;
1523
1524 {
1525 dREQ;
1526
1527 req->type = ix;
1528 req->sv2 = SvREFCNT_inc (data);
1529 req->ptr2 = (char *)svptr + offset;
1530 req->size = len;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534 }
1535}
1536
1537void
1538aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1539 PPCODE:
1540{
1541 STRLEN svlen;
1542 char *svptr = SvPVbyte (data, svlen);
1543 UV len = SvUV (length);
1544
1545 if (offset < 0)
1546 offset += svlen;
1547
1548 if (offset < 0 || offset > svlen)
1549 croak ("offset outside of scalar");
1550
1551 if (!SvOK (length) || len + offset > svlen)
1552 len = svlen - offset;
1553
1554 {
1555 dREQ;
1556
1557 req->type = EIO_MLOCK;
1558 req->sv2 = SvREFCNT_inc (data);
1559 req->ptr2 = (char *)svptr + offset;
1560 req->size = len;
1561
1562 REQ_SEND;
1563 }
1564}
1565
1566void
1567aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1568 PPCODE:
1569{
1570 dREQ;
1571
1572 req->type = EIO_MLOCKALL;
1573 req->int1 = flags;
1574
1575 REQ_SEND;
1576}
1577
1578void
1579aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1580 PPCODE:
1581{
1582 int fd = s_fileno_croak (fh, 0);
1377 dREQ; 1583 dREQ;
1378 1584
1379 req->type = REQ_GROUP; 1585 req->type = EIO_CUSTOM;
1380 req_send (req); 1586 req->sv1 = newSVsv (fh);
1587 req->int1 = fd;
1381 1588
1382 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1589 req->feed = fiemap;
1383} 1590#if HAVE_FIEMAP
1591 /* keep our fingers crossed that the next two types are 64 bit */
1592 req->offs = start;
1593 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1594 req->int2 = flags;
1595 req->int3 = SvOK (count) ? SvIV (count) : -1;
1596#endif
1384 1597
1598 REQ_SEND;
1599}
1600
1385void 1601void
1386aio_nop (callback=&PL_sv_undef) 1602aio_busy (double delay, SV *callback=&PL_sv_undef)
1387 SV * callback
1388 PPCODE: 1603 PPCODE:
1389{ 1604{
1390 dREQ; 1605 dREQ;
1391 1606
1392 req->type = REQ_NOP; 1607 req->type = EIO_BUSY;
1608 req->nv1 = delay < 0. ? 0. : delay;
1393 1609
1394 REQ_SEND; 1610 REQ_SEND;
1395} 1611}
1396 1612
1397void 1613void
1398aioreq_pri (int pri = DEFAULT_PRI) 1614aio_group (SV *callback=&PL_sv_undef)
1399 CODE: 1615 PPCODE:
1616{
1617 dREQ;
1618
1619 req->type = EIO_GROUP;
1620
1621 PUTBACK;
1622 req_submit (req);
1623 SPAGAIN;
1624
1625 XPUSHs (req_sv (req, aio_grp_stash));
1626}
1627
1628void
1629aio_nop (SV *callback=&PL_sv_undef)
1630 ALIAS:
1631 aio_nop = EIO_NOP
1632 aio_sync = EIO_SYNC
1633 PPCODE:
1634{
1635 dREQ;
1636
1637 req->type = ix;
1638
1639 REQ_SEND;
1640}
1641
1642int
1643aioreq_pri (int pri = 0)
1644 CODE:
1645 RETVAL = next_pri;
1646 if (items > 0)
1647 {
1400 if (pri < PRI_MIN) pri = PRI_MIN; 1648 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1401 if (pri > PRI_MAX) pri = PRI_MAX; 1649 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1402 next_pri = pri + PRI_BIAS; 1650 next_pri = pri;
1651 }
1652 OUTPUT:
1653 RETVAL
1403 1654
1404void 1655void
1405aioreq_nice (int nice = 0) 1656aioreq_nice (int nice = 0)
1406 CODE: 1657 CODE:
1407 nice = next_pri - nice; 1658 nice = next_pri - nice;
1408 if (nice < PRI_MIN) nice = PRI_MIN; 1659 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1409 if (nice > PRI_MAX) nice = PRI_MAX; 1660 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1410 next_pri = nice + PRI_BIAS; 1661 next_pri = nice;
1411 1662
1412void 1663void
1413flush () 1664flush ()
1665 CODE:
1666 while (eio_nreqs ())
1667 {
1668 poll_wait ();
1669 poll_cb ();
1670 }
1671
1672int
1673poll ()
1674 CODE:
1675 poll_wait ();
1676 RETVAL = poll_cb ();
1677 OUTPUT:
1678 RETVAL
1679
1680int
1681poll_fileno ()
1682 CODE:
1683 RETVAL = s_epipe_fd (&respipe);
1684 OUTPUT:
1685 RETVAL
1686
1687int
1688poll_cb (...)
1414 PROTOTYPE: 1689 PROTOTYPE:
1415 CODE: 1690 CODE:
1416 while (nreqs)
1417 {
1418 poll_wait ();
1419 poll_cb (0); 1691 RETVAL = poll_cb ();
1420 }
1421
1422void
1423poll()
1424 PROTOTYPE:
1425 CODE:
1426 if (nreqs)
1427 {
1428 poll_wait ();
1429 poll_cb (0);
1430 }
1431
1432int
1433poll_fileno()
1434 PROTOTYPE:
1435 CODE:
1436 RETVAL = respipe [0];
1437 OUTPUT: 1692 OUTPUT:
1438 RETVAL 1693 RETVAL
1439 1694
1695void
1696poll_wait ()
1697 CODE:
1698 poll_wait ();
1699
1440int 1700int
1441poll_cb(...) 1701nreqs ()
1442 PROTOTYPE:
1443 CODE: 1702 CODE:
1444 RETVAL = poll_cb (0); 1703 RETVAL = eio_nreqs ();
1445 OUTPUT: 1704 OUTPUT:
1446 RETVAL 1705 RETVAL
1447 1706
1448int 1707int
1449poll_some(int max = 0) 1708nready ()
1450 PROTOTYPE: $
1451 CODE: 1709 CODE:
1452 RETVAL = poll_cb (max); 1710 RETVAL = eio_nready ();
1453 OUTPUT: 1711 OUTPUT:
1454 RETVAL 1712 RETVAL
1455 1713
1456void 1714int
1457poll_wait() 1715npending ()
1458 PROTOTYPE:
1459 CODE: 1716 CODE:
1460 if (nreqs) 1717 RETVAL = eio_npending ();
1461 poll_wait ();
1462
1463int
1464nreqs()
1465 PROTOTYPE:
1466 CODE:
1467 RETVAL = nreqs;
1468 OUTPUT: 1718 OUTPUT:
1469 RETVAL 1719 RETVAL
1470 1720
1721int
1722nthreads ()
1723 CODE:
1724 RETVAL = eio_nthreads ();
1725 OUTPUT:
1726 RETVAL
1727
1728int
1729fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1730 CODE:
1731 RETVAL = posix_fadvise (fh, offset, length, advice);
1732 OUTPUT:
1733 RETVAL
1734
1735IV
1736sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1737 CODE:
1738 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1739 OUTPUT:
1740 RETVAL
1741
1742void
1743mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1744 PPCODE:
1745 sv_unmagic (scalar, MMAP_MAGIC);
1746{
1747 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1748 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1749 if (addr == (void *)-1)
1750 XSRETURN_NO;
1751
1752 sv_force_normal (scalar);
1753
1754 /* we store the length in mg_obj, as namlen is I32 :/ */
1755 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1756 ->mg_obj = (SV *)length;
1757
1758 SvUPGRADE (scalar, SVt_PV); /* nop... */
1759
1760 if (!(prot & PROT_WRITE))
1761 SvREADONLY_on (scalar);
1762
1763 if (SvLEN (scalar))
1764 Safefree (SvPVX (scalar));
1765
1766 SvPVX (scalar) = (char *)addr;
1767 SvCUR_set (scalar, length);
1768 SvLEN_set (scalar, 0);
1769 SvPOK_only (scalar);
1770
1771 XSRETURN_YES;
1772}
1773
1774void
1775munmap (SV *scalar)
1776 CODE:
1777 sv_unmagic (scalar, MMAP_MAGIC);
1778
1779int
1780madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1781 ALIAS:
1782 mprotect = 1
1783 CODE:
1784{
1785 STRLEN svlen;
1786 void *addr = SvPVbyte (scalar, svlen);
1787 size_t len = SvUV (length);
1788
1789 if (offset < 0)
1790 offset += svlen;
1791
1792 if (offset < 0 || offset > svlen)
1793 croak ("offset outside of scalar");
1794
1795 if (!SvOK (length) || len + offset > svlen)
1796 len = svlen - offset;
1797
1798 addr = (void *)(((intptr_t)addr) + offset);
1799 eio_page_align (&addr, &len);
1800
1801 switch (ix)
1802 {
1803 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1804 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1805 }
1806}
1807 OUTPUT:
1808 RETVAL
1809
1810int
1811munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1812 CODE:
1813{
1814 STRLEN svlen;
1815 void *addr = SvPVbyte (scalar, svlen);
1816 size_t len = SvUV (length);
1817
1818 if (offset < 0)
1819 offset += svlen;
1820
1821 if (offset < 0 || offset > svlen)
1822 croak ("offset outside of scalar");
1823
1824 if (!SvOK (length) || len + offset > svlen)
1825 len = svlen - offset;
1826
1827 addr = (void *)(((intptr_t)addr) + offset);
1828 eio_page_align (&addr, &len);
1829#if _POSIX_MEMLOCK_RANGE
1830 RETVAL = munlock (addr, len);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834}
1835 OUTPUT:
1836 RETVAL
1837
1838int
1839munlockall ()
1840 CODE:
1841#if _POSIX_MEMLOCK
1842 munlockall ();
1843#else
1844 RETVAL = EIO_ENOSYS ();
1845#endif
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1851 CODE:
1852{
1853#if HAVE_LINUX_SPLICE
1854 loff_t off_in_, off_out_;
1855 RETVAL = splice (
1856 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1857 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1858 length, flags
1859 );
1860#else
1861 RETVAL = EIO_ENOSYS ();
1862#endif
1863}
1864 OUTPUT:
1865 RETVAL
1866
1867int
1868tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1869 CODE:
1870#if HAVE_LINUX_SPLICE
1871 RETVAL = tee (rfh, wfh, length, flags);
1872#else
1873 RETVAL = EIO_ENOSYS ();
1874#endif
1875 OUTPUT:
1876 RETVAL
1877
1878int
1879pipesize (aio_rfd rfh, int new_size = -1)
1880 PROTOTYPE: $;$
1881 CODE:
1882#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1883 if (new_size >= 0)
1884 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1885 else
1886 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1887#else
1888 errno = ENOSYS;
1889 RETVAL = -1;
1890#endif
1891 OUTPUT:
1892 RETVAL
1893
1894void _on_next_submit (SV *cb)
1895 CODE:
1896 SvREFCNT_dec (on_next_submit);
1897 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1898
1471PROTOTYPES: DISABLE 1899PROTOTYPES: DISABLE
1900
1901MODULE = IO::AIO PACKAGE = IO::AIO::WD
1902
1903BOOT:
1904{
1905 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1906 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1907}
1908
1909void
1910DESTROY (SV *self)
1911 CODE:
1912{
1913 aio_wd wd = SvAIO_WD (self);
1914#if HAVE_AT
1915 {
1916 SV *callback = &PL_sv_undef;
1917 dREQ; /* clobbers next_pri :/ */
1918 next_pri = req->pri; /* restore next_pri */
1919 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1920 req->type = EIO_WD_CLOSE;
1921 req->wd = wd;
1922 REQ_SEND;
1923 }
1924#else
1925 eio_wd_close_sync (wd);
1926#endif
1927}
1472 1928
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1929MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 1930
1475void 1931void
1476cancel (aio_req_ornot req) 1932cancel (aio_req_ornot req)
1477 CODE: 1933 CODE:
1478 req_cancel (req); 1934 eio_cancel (req);
1479 1935
1480void 1936void
1481cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1937cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1482 CODE: 1938 PPCODE:
1939{
1940 if (GIMME_V != G_VOID)
1941 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1942
1943 if (items > 1)
1944 {
1945 SV *cb_cv =get_cb (callback);
1946
1483 SvREFCNT_dec (req->callback); 1947 SvREFCNT_dec (req->callback);
1484 req->callback = newSVsv (callback); 1948 req->callback = SvREFCNT_inc (cb_cv);
1949 }
1950}
1485 1951
1486MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1952MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1487 1953
1488void 1954void
1489add (aio_req grp, ...) 1955add (aio_req grp, ...)
1490 PPCODE: 1956 PPCODE:
1491{ 1957{
1492 int i; 1958 int i;
1493 aio_req req;
1494 1959
1495 if (grp->fd == 2) 1960 if (grp->int1 == 2)
1496 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1961 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1497 1962
1498 for (i = 1; i < items; ++i ) 1963 for (i = 1; i < items; ++i )
1499 { 1964 {
1965 aio_req req;
1966
1500 if (GIMME_V != G_VOID) 1967 if (GIMME_V != G_VOID)
1501 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1968 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1502 1969
1503 req = SvAIO_REQ (ST (i)); 1970 req = SvAIO_REQ (ST (i));
1504 1971
1505 if (req) 1972 if (req)
1506 { 1973 eio_grp_add (grp, req);
1507 ++grp->length;
1508 req->grp = grp;
1509
1510 req->grp_prev = 0;
1511 req->grp_next = grp->grp_first;
1512
1513 if (grp->grp_first)
1514 grp->grp_first->grp_prev = req;
1515
1516 grp->grp_first = req;
1517 }
1518 } 1974 }
1519} 1975}
1520 1976
1521void 1977void
1522cancel_subs (aio_req_ornot req) 1978cancel_subs (aio_req_ornot req)
… …
1526void 1982void
1527result (aio_req grp, ...) 1983result (aio_req grp, ...)
1528 CODE: 1984 CODE:
1529{ 1985{
1530 int i; 1986 int i;
1987 AV *av;
1988
1989 grp->errorno = errno;
1990
1531 AV *av = newAV (); 1991 av = newAV ();
1992 av_extend (av, items - 1);
1532 1993
1533 for (i = 1; i < items; ++i ) 1994 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 1995 av_push (av, newSVsv (ST (i)));
1535 1996
1536 SvREFCNT_dec (grp->data); 1997 SvREFCNT_dec (grp->sv1);
1537 grp->data = (SV *)av; 1998 grp->sv1 = (SV *)av;
1538} 1999}
2000
2001void
2002errno (aio_req grp, int errorno = errno)
2003 CODE:
2004 grp->errorno = errorno;
1539 2005
1540void 2006void
1541limit (aio_req grp, int limit) 2007limit (aio_req grp, int limit)
1542 CODE: 2008 CODE:
1543 grp->fd2 = limit; 2009 eio_grp_limit (grp, limit);
1544 aio_grp_feed (grp);
1545 2010
1546void 2011void
1547feed (aio_req grp, SV *callback=&PL_sv_undef) 2012feed (aio_req grp, SV *callback=&PL_sv_undef)
1548 CODE: 2013 CODE:
1549{ 2014{
1550 SvREFCNT_dec (grp->fh2); 2015 SvREFCNT_dec (grp->sv2);
1551 grp->fh2 = newSVsv (callback); 2016 grp->sv2 = newSVsv (callback);
2017 grp->feed = aio_grp_feed;
1552 2018
1553 if (grp->fd2 <= 0) 2019 if (grp->int2 <= 0)
1554 grp->fd2 = 2; 2020 grp->int2 = 2;
1555 2021
1556 aio_grp_feed (grp); 2022 eio_grp_limit (grp, grp->int2);
1557} 2023}
1558 2024

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