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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.6 by root, Mon Jul 11 01:03:17 2005 UTC vs.
Revision 1.244 by root, Tue May 30 22:45:52 2017 UTC

1#include "libeio/xthread.h"
2
3#include <errno.h>
4
1#include "EXTERN.h" 5#include "EXTERN.h"
2#include "perl.h" 6#include "perl.h"
3#include "XSUB.h" 7#include "XSUB.h"
4 8
9#include "schmorp.h"
10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
5#include <sys/types.h> 14#include <sys/types.h>
6#include <sys/stat.h> 15#include <sys/stat.h>
7#include <unistd.h> 16#include <limits.h>
8#include <fcntl.h> 17#include <fcntl.h>
9#include <signal.h>
10#include <sched.h> 18#include <sched.h>
11#include <endian.h>
12 19
13#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
14#include <sys/syscall.h> 21# include <sys/mman.h>
22#endif
15 23
16typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24/* the incompetent fool that created musl keeps __linux__, refuses
17typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25 * to implement any linux standard apis, and also has no way to test
18typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
19 37
20#if __ia64 38/* perl namespace pollution */
21# define STACKSIZE 65536 39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
22#else 84#else
23# define STACKSIZE 4096 85
86 #include <sys/time.h>
87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
145# else
146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
24#endif 147# endif
148#endif
25 149
26enum { 150/* defines all sorts of constants to 0 unless they are already defined */
27 REQ_QUIT, 151/* also provides const_iv_ and const_niv_ macros for them */
28 REQ_OPEN, REQ_CLOSE, 152#include "def0.h"
29 REQ_READ, REQ_WRITE, REQ_READAHEAD,
30 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
31 REQ_FSYNC, REQ_FDATASYNC,
32};
33 153
34typedef struct aio_cb { 154#ifndef makedev
35 struct aio_cb *volatile next; 155# define makedev(maj,min) (((maj) << 8) | (min))
156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
36 163
37 int type; 164#if PAGESIZE <= 0
165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
38 167
39 int fd; 168/*****************************************************************************/
40 off_t offset;
41 size_t length;
42 ssize_t result;
43 mode_t mode; /* open */
44 int errorno;
45 SV *data, *callback;
46 void *dataptr;
47 STRLEN dataoffset;
48
49 Stat_t *statdata;
50} aio_cb;
51
52typedef aio_cb *aio_req;
53
54static int started;
55static int nreqs;
56static int max_outstanding = 1<<30;
57static int respipe [2];
58
59static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
60static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
61static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
62
63static volatile aio_req reqs, reqe; /* queue start, queue end */
64static volatile aio_req ress, rese; /* queue start, queue end */
65 169
66static void 170static void
67poll_wait () 171fiemap (eio_req *req)
68{ 172{
69 if (!nreqs) 173 req->result = -1;
174
175#if HAVE_FIEMAP
176 /* assume some c99 */
177 struct fiemap *fiemap = 0;
178 size_t end_offset;
179 int count = req->int3;
180
181 req->flags |= EIO_FLAG_PTR1_FREE;
182
183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
184 /* increase in 3.5kb steps */
185 if (count < 0)
186 count = 8;
187
188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189 errno = ENOMEM;
190 if (!fiemap)
70 return; 191 return;
71 192
72 fd_set rfd; 193 req->ptr1 = fiemap;
73 FD_ZERO(&rfd);
74 FD_SET(respipe [0], &rfd);
75 194
76 select (respipe [0] + 1, &rfd, 0, 0, 0); 195 fiemap->fm_start = req->offs;
77} 196 fiemap->fm_length = req->size;
197 fiemap->fm_flags = req->int2;
198 fiemap->fm_extent_count = count;
78 199
79static int 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
80poll_cb () 201 return;
81{ 202
82 dSP; 203 if (req->int3 >= 0 /* not autosizing */
83 int count = 0; 204 || !fiemap->fm_mapped_extents /* no more extents */
84 aio_req req; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
85 206 goto done;
86 { 207
87 /* read and signals sent by the worker threads */ 208 /* else we have to loop -
88 char buf [32]; 209 * it would be tempting (actually I tried that first) to just query the
89 while (read (respipe [0], buf, 32) > 0) 210 * number of extents needed, but linux often feels like not returning all
90 ; 211 * extents, without telling us it left any out. this complicates
91 } 212 * this quite a bit.
213 */
214
215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
92 216
93 for (;;) 217 for (;;)
94 { 218 {
95 pthread_mutex_lock (&reslock); 219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
220 char scratch[3072];
221 struct fiemap *incmap = (struct fiemap *)scratch;
96 222
97 req = ress; 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
226 incmap->fm_flags = fiemap->fm_flags;
227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
98 228
99 if (ress) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
230 return;
231
232 if (!incmap->fm_mapped_extents)
233 goto done;
234
235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
237 errno = ENOMEM;
238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
100 { 244 {
101 ress = ress->next; 245 struct fiemap_extent *e = incmap->fm_extents + count;
102 if (!ress) rese = 0; 246
247 if (e->fe_logical + e->fe_length >= end_offset)
248 goto done;
249
250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
251
252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
253 goto done;
254
103 } 255 }
256 }
104 257
105 pthread_mutex_unlock (&reslock); 258done:
259 req->result = 0;
106 260
107 if (!req) 261#else
108 break; 262 errno = ENOSYS;
263#endif
264}
109 265
110 nreqs--; 266/*****************************************************************************/
111 267
112 if (req->type == REQ_QUIT) 268enum {
113 started--; 269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 else 270};
271
272typedef eio_req *aio_req;
273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
275
276static SV *on_next_submit;
277static int next_pri = EIO_PRI_DEFAULT;
278static int max_outstanding;
279
280static s_epipe respipe;
281
282static void req_destroy (aio_req req);
283static void req_cancel (aio_req req);
284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
298
299/* must be called at most once */
300static SV *
301req_sv (aio_req req, HV *stash)
302{
303 if (!req->self)
304 {
305 req->self = (SV *)newHV ();
306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
307 }
308
309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
310}
311
312static SV *
313newSVaio_wd (aio_wd wd)
314{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
320{
321 MAGIC *mg;
322
323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
328 croak ("object of class IO::AIO::REQ expected");
329
330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
331
332 return mg ? (aio_req)mg->mg_ptr : 0;
333}
334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
372aio_grp_feed (aio_req grp)
373{
374 if (grp->sv2 && SvOK (grp->sv2))
375 {
376 dSP;
377
378 ENTER;
379 SAVETMPS;
380 PUSHMARK (SP);
381 XPUSHs (req_sv (grp, aio_grp_stash));
382 PUTBACK;
383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
384 SPAGAIN;
385 FREETMPS;
386 LEAVE;
387 }
388}
389
390static void
391req_submit (eio_req *req)
392{
393 eio_submit (req);
394
395 if (expect_false (on_next_submit))
396 {
397 dSP;
398 SV *cb = sv_2mortal (on_next_submit);
399
400 on_next_submit = 0;
401
402 PUSHMARK (SP);
403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
405 }
406}
407
408static int
409req_invoke (eio_req *req)
410{
411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
413
414 if (!EIO_CANCELLED (req) && req->callback)
415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
420 ENTER;
421 SAVETMPS;
422 PUSHMARK (SP);
423 EXTEND (SP, 1);
424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
115 { 427 {
116 int errorno = errno; 428 sv_result = sv_result_cache; sv_result_cache = 0;
117 errno = req->errorno; 429 SvIV_set (sv_result, req->result);
118 430 SvIOK_only (sv_result);
119 if (req->type == REQ_READ)
120 SvCUR_set (req->data, req->dataoffset
121 + req->result > 0 ? req->result : 0);
122
123 if (req->data)
124 SvREFCNT_dec (req->data);
125
126 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
127 {
128 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129 PL_laststatval = req->result;
130 PL_statcache = *(req->statdata);
131
132 Safefree (req->statdata);
133 }
134
135 PUSHMARK (SP);
136 XPUSHs (sv_2mortal (newSViv (req->result)));
137
138 if (req->type == REQ_OPEN)
139 {
140 /* convert fd to fh */
141 SV *fh;
142
143 PUTBACK;
144 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
145 SPAGAIN;
146
147 fh = POPs;
148
149 PUSHMARK (SP);
150 XPUSHs (fh);
151 }
152
153 PUTBACK;
154 call_sv (req->callback, G_VOID | G_EVAL);
155 SPAGAIN;
156
157 if (req->callback)
158 SvREFCNT_dec (req->callback);
159
160 errno = errorno;
161 count++;
162 }
163
164 Safefree (req);
165 }
166
167 return count;
168}
169
170static void *aio_proc(void *arg);
171
172static void
173start_thread (void)
174{
175 sigset_t fullsigset, oldsigset;
176 pthread_t tid;
177 pthread_attr_t attr;
178
179 pthread_attr_init (&attr);
180 pthread_attr_setstacksize (&attr, STACKSIZE);
181 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
182
183 sigfillset (&fullsigset);
184 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
185
186 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
187 started++;
188
189 sigprocmask (SIG_SETMASK, &oldsigset, 0);
190}
191
192static void
193send_req (aio_req req)
194{
195 nreqs++;
196
197 pthread_mutex_lock (&reqlock);
198
199 req->next = 0;
200
201 if (reqe)
202 {
203 reqe->next = req;
204 reqe = req;
205 }
206 else
207 reqe = reqs = req;
208
209 pthread_cond_signal (&reqwait);
210 pthread_mutex_unlock (&reqlock);
211
212 while (nreqs > max_outstanding)
213 {
214 poll_wait ();
215 poll_cb ();
216 }
217}
218
219static void
220end_thread (void)
221{
222 aio_req req;
223 New (0, req, 1, aio_cb);
224 req->type = REQ_QUIT;
225
226 send_req (req);
227}
228
229static void
230read_write (int dowrite, int fd, off_t offset, size_t length,
231 SV *data, STRLEN dataoffset, SV *callback)
232{
233 aio_req req;
234 STRLEN svlen;
235 char *svptr = SvPV (data, svlen);
236
237 SvUPGRADE (data, SVt_PV);
238 SvPOK_on (data);
239
240 if (dataoffset < 0)
241 dataoffset += svlen;
242
243 if (dataoffset < 0 || dataoffset > svlen)
244 croak ("data offset outside of string");
245
246 if (dowrite)
247 {
248 /* write: check length and adjust. */
249 if (length < 0 || length + dataoffset > svlen)
250 length = svlen - dataoffset;
251 }
252 else
253 {
254 /* read: grow scalar as necessary */
255 svptr = SvGROW (data, length + dataoffset);
256 }
257
258 if (length < 0)
259 croak ("length must not be negative");
260
261 Newz (0, req, 1, aio_cb);
262
263 if (!req)
264 croak ("out of memory during aio_req allocation");
265
266 req->type = dowrite ? REQ_WRITE : REQ_READ;
267 req->fd = fd;
268 req->offset = offset;
269 req->length = length;
270 req->data = SvREFCNT_inc (data);
271 req->dataptr = (char *)svptr + dataoffset;
272 req->callback = SvREFCNT_inc (callback);
273
274 send_req (req);
275}
276
277static void *
278aio_proc (void *thr_arg)
279{
280 aio_req req;
281 int type;
282
283 do
284 {
285 pthread_mutex_lock (&reqlock);
286
287 for (;;)
288 {
289 req = reqs;
290
291 if (reqs)
292 {
293 reqs = reqs->next;
294 if (!reqs) reqe = 0;
295 }
296
297 if (req)
298 break;
299
300 pthread_cond_wait (&reqwait, &reqlock);
301 }
302
303 pthread_mutex_unlock (&reqlock);
304
305 errno = 0; /* strictly unnecessary */
306
307 type = req->type;
308
309 switch (type)
310 {
311 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;
312 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break;
313#if SYS_readahead
314 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
315#else
316 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
317#endif
318
319 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
320 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
321 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
322
323 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
324 case REQ_CLOSE: req->result = close (req->fd); break;
325 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
326
327 case REQ_FSYNC: req->result = fsync (req->fd); break;
328 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
329
330 case REQ_QUIT:
331 break;
332
333 default:
334 req->result = ENOSYS;
335 break;
336 }
337
338 req->errorno = errno;
339
340 pthread_mutex_lock (&reslock);
341
342 req->next = 0;
343
344 if (rese)
345 {
346 rese->next = req;
347 rese = req;
348 } 431 }
349 else 432 else
350 { 433 {
351 rese = ress = req; 434 sv_result = newSViv (req->result);
352 435 SvREADONLY_on (sv_result);
353 /* write a dummy byte to the pipe so fh becomes ready */
354 write (respipe [1], &respipe, 1);
355 } 436 }
356 437
357 pthread_mutex_unlock (&reslock); 438 switch (req->type)
439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
444 case EIO_READDIR:
445 {
446 SV *rv = &PL_sv_undef;
447
448 if (req->result >= 0)
449 {
450 int i;
451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
453 AV *av = newAV ();
454
455 av_extend (av, req->result - 1);
456
457 for (i = 0; i < req->result; ++i)
458 {
459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
491 names += SvCUR (name) + 1;
492 }
493 }
494
495 rv = sv_2mortal (newRV_noinc ((SV *)av));
496 }
497
498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 }
503 break;
504
505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
546 case EIO_GROUP:
547 req->int1 = 2; /* mark group as finished */
548
549 if (req->sv1)
550 {
551 int i;
552 AV *av = (AV *)req->sv1;
553
554 EXTEND (SP, AvFILL (av) + 1);
555 for (i = 0; i <= AvFILL (av); ++i)
556 PUSHs (*av_fetch (av, i, 0));
557 }
558 break;
559
560 case EIO_NOP:
561 case EIO_BUSY:
562 break;
563
564 case EIO_READLINK:
565 case EIO_REALPATH:
566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
598 {
599#if HAVE_FIEMAP
600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
631 }
632 else
633 PUSHs (sv_result);
634 break;
635
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0)
638 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */
640
641 default:
642 PUSHs (sv_result);
643 break;
644 }
645
646 errno = req->errorno;
647
648 PUTBACK;
649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
656
657 FREETMPS;
658 LEAVE;
659
660 PUTBACK;
358 } 661 }
359 while (type != REQ_QUIT); 662
663 return !!SvTRUE (ERRSV);
664}
665
666static void
667req_destroy (aio_req req)
668{
669 if (req->self)
670 {
671 sv_unmagic (req->self, PERL_MAGIC_ext);
672 SvREFCNT_dec (req->self);
673 }
674
675 SvREFCNT_dec (req->sv1);
676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
679 SvREFCNT_dec (req->callback);
680
681 free (req);
682}
683
684static void
685req_cancel_subs (aio_req grp)
686{
687 if (grp->type != EIO_GROUP)
688 return;
689
690 SvREFCNT_dec (grp->sv2);
691 grp->sv2 = 0;
692
693 eio_grp_cancel (grp);
694}
695
696static void ecb_cold
697create_respipe (void)
698{
699 if (s_epipe_renew (&respipe))
700 croak ("IO::AIO: unable to initialize result pipe");
701}
702
703static void
704poll_wait (void)
705{
706 while (eio_nreqs ())
707 {
708 int size;
709
710 X_LOCK (EIO_POOL->reslock);
711 size = EIO_POOL->res_queue.size;
712 X_UNLOCK (EIO_POOL->reslock);
713
714 if (size)
715 return;
716
717 etp_maybe_start_thread (EIO_POOL);
718
719 s_epipe_wait (&respipe);
720 }
721}
722
723static int
724poll_cb (void)
725{
726 for (;;)
727 {
728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
360 779
361 return 0; 780 return 0;
362} 781}
363 782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
836 {
837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
839
840 if (SvOK (wdob))
841 {
842 *wd = SvAIO_WD (wdob);
843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
844 }
845 else
846 *wd = EIO_INVALID_WD;
847 }
848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
849 {
850 *wd = (aio_wd)(long)SvIVX (rv);
851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
854 }
855 else
856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
857 }
858
859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
861}
862
863static void ecb_noinline
864req_set_path1 (aio_req req, SV *path)
865{
866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
867}
868
869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
871{
872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
873
874 switch (SvTYPE (rv))
875 {
876 case SVt_PVIO:
877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882 break;
883
884 default:
885 req->type = type_path;
886 req_set_path1 (req, fh_or_path);
887 break;
888 }
889}
890
891XS(boot_IO__AIO) ecb_cold;
892
364MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
365 894
895PROTOTYPES: ENABLE
896
366BOOT: 897BOOT:
367{ 898{
368 if (pipe (respipe)) 899 static const struct {
369 croak ("unable to initialize result pipe"); 900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
370 906
371 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 907 /* you have to re-run ./gendef0 after adding/removing any constants here */
372 croak ("cannot set result pipe to nonblocking mode"); 908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
373 912
374 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 913 /* for lseek */
375 croak ("cannot set result pipe to nonblocking mode"); 914 const_iv (SEEK_DATA)
376} 915 const_iv (SEEK_HOLE)
377 916
917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
923
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
930
931 /* the second block will be 0 when missing */
932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
939
940 const_iv (O_ASYNC)
941 const_iv (O_DIRECT)
942 const_iv (O_NOATIME)
943
944 const_iv (O_CLOEXEC)
945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_iv (ST_RDONLY)
969 const_iv (ST_NOSUID)
970 const_iv (ST_NODEV)
971 const_iv (ST_NOEXEC)
972 const_iv (ST_SYNCHRONOUS)
973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
980
981 const_iv (PROT_NONE)
982 const_iv (PROT_EXEC)
983 const_iv (PROT_READ)
984 const_iv (PROT_WRITE)
985
986 const_iv (MAP_PRIVATE)
987 const_iv (MAP_SHARED)
988 const_iv (MAP_FIXED)
989 const_iv (MAP_ANONYMOUS)
990
991 /* linuxish */
992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
1000
1001 const_iv (FIFREEZE)
1002 const_iv (FITHAW)
1003 const_iv (FITRIM)
1004 const_iv (FICLONE)
1005 const_iv (FICLONERANGE)
1006 const_iv (FIDEDUPERANGE)
1007
1008 const_iv (FS_IOC_GETFLAGS)
1009 const_iv (FS_IOC_SETFLAGS)
1010 const_iv (FS_IOC_GETVERSION)
1011 const_iv (FS_IOC_SETVERSION)
1012 const_iv (FS_IOC_FIEMAP)
1013 const_iv (FS_IOC_FSGETXATTR)
1014 const_iv (FS_IOC_FSSETXATTR)
1015 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1016 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1017 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1018
1019 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1020
1021 const_iv (FS_SECRM_FL)
1022 const_iv (FS_UNRM_FL)
1023 const_iv (FS_COMPR_FL)
1024 const_iv (FS_SYNC_FL)
1025 const_iv (FS_IMMUTABLE_FL)
1026 const_iv (FS_APPEND_FL)
1027 const_iv (FS_NODUMP_FL)
1028 const_iv (FS_NOATIME_FL)
1029 const_iv (FS_DIRTY_FL)
1030 const_iv (FS_COMPRBLK_FL)
1031 const_iv (FS_NOCOMP_FL)
1032 const_iv (FS_ENCRYPT_FL)
1033 const_iv (FS_BTREE_FL)
1034 const_iv (FS_INDEX_FL)
1035 const_iv (FS_JOURNAL_DATA_FL)
1036 const_iv (FS_NOTAIL_FL)
1037 const_iv (FS_DIRSYNC_FL)
1038 const_iv (FS_TOPDIR_FL)
1039 const_iv (FS_FL_USER_MODIFIABLE)
1040
1041 const_iv (FS_XFLAG_REALTIME)
1042 const_iv (FS_XFLAG_PREALLOC)
1043 const_iv (FS_XFLAG_IMMUTABLE)
1044 const_iv (FS_XFLAG_APPEND)
1045 const_iv (FS_XFLAG_SYNC)
1046 const_iv (FS_XFLAG_NOATIME)
1047 const_iv (FS_XFLAG_NODUMP)
1048 const_iv (FS_XFLAG_RTINHERIT)
1049 const_iv (FS_XFLAG_PROJINHERIT)
1050 const_iv (FS_XFLAG_NOSYMLINKS)
1051 const_iv (FS_XFLAG_EXTSIZE)
1052 const_iv (FS_XFLAG_EXTSZINHERIT)
1053 const_iv (FS_XFLAG_NODEFRAG)
1054 const_iv (FS_XFLAG_FILESTREAM)
1055 const_iv (FS_XFLAG_DAX)
1056 const_iv (FS_XFLAG_HASATTR)
1057
1058 const_iv (FIEMAP_FLAG_SYNC)
1059 const_iv (FIEMAP_FLAG_XATTR)
1060 const_iv (FIEMAP_FLAGS_COMPAT)
1061 const_iv (FIEMAP_EXTENT_LAST)
1062 const_iv (FIEMAP_EXTENT_UNKNOWN)
1063 const_iv (FIEMAP_EXTENT_DELALLOC)
1064 const_iv (FIEMAP_EXTENT_ENCODED)
1065 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1066 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1067 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1068 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1069 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1070 const_iv (FIEMAP_EXTENT_MERGED)
1071 const_iv (FIEMAP_EXTENT_SHARED)
1072
1073 const_iv (SPLICE_F_MOVE)
1074 const_iv (SPLICE_F_NONBLOCK)
1075 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT)
1077
1078 /* these are libeio constants, and are independent of gendef0 */
1079 const_eio (SEEK_SET)
1080 const_eio (SEEK_CUR)
1081 const_eio (SEEK_END)
1082
1083 const_eio (MCL_FUTURE)
1084 const_eio (MCL_CURRENT)
1085
1086 const_eio (MS_ASYNC)
1087 const_eio (MS_INVALIDATE)
1088 const_eio (MS_SYNC)
1089
1090 const_eio (MT_MODIFY)
1091
1092 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1093 const_eio (SYNC_FILE_RANGE_WRITE)
1094 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1095
1096 const_eio (FALLOC_FL_KEEP_SIZE)
1097 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE)
1100
1101 const_eio (READDIR_DENTS)
1102 const_eio (READDIR_DIRS_FIRST)
1103 const_eio (READDIR_STAT_ORDER)
1104 const_eio (READDIR_FOUND_UNKNOWN)
1105
1106 const_eio (DT_UNKNOWN)
1107 const_eio (DT_FIFO)
1108 const_eio (DT_CHR)
1109 const_eio (DT_DIR)
1110 const_eio (DT_BLK)
1111 const_eio (DT_REG)
1112 const_eio (DT_LNK)
1113 const_eio (DT_SOCK)
1114 const_eio (DT_WHT)
1115 };
1116
1117 aio_stash = gv_stashpv ("IO::AIO" , 1);
1118 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1119 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1120 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1121
1122 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1123 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1124
1125 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1126
1127 reinit ();
1128}
1129
378void 1130void
379min_parallel(nthreads) 1131reinit ()
380 int nthreads 1132 PROTOTYPE:
1133
1134void
1135max_poll_reqs (unsigned int nreqs)
381 PROTOTYPE: $ 1136 PROTOTYPE: $
382 CODE: 1137 CODE:
383 while (nthreads > started) 1138 eio_set_max_poll_reqs (nreqs);
384 start_thread ();
385 1139
386void 1140void
387max_parallel(nthreads) 1141max_poll_time (double nseconds)
388 int nthreads
389 PROTOTYPE: $ 1142 PROTOTYPE: $
390 CODE: 1143 CODE:
1144 eio_set_max_poll_time (nseconds);
1145
1146void
1147min_parallel (unsigned int nthreads)
1148 PROTOTYPE: $
1149 CODE:
1150 eio_set_min_parallel (nthreads);
1151
1152void
1153max_parallel (unsigned int nthreads)
1154 PROTOTYPE: $
1155 CODE:
1156 eio_set_max_parallel (nthreads);
1157
1158void
1159max_idle (unsigned int nthreads)
1160 PROTOTYPE: $
1161 CODE:
1162 eio_set_max_idle (nthreads);
1163
1164void
1165idle_timeout (unsigned int seconds)
1166 PROTOTYPE: $
1167 CODE:
1168 eio_set_idle_timeout (seconds);
1169
1170void
1171max_outstanding (unsigned int maxreqs)
1172 PROTOTYPE: $
1173 CODE:
1174 max_outstanding = maxreqs;
1175
1176void
1177aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1178 PPCODE:
391{ 1179{
392 int cur = started; 1180 dREQ;
393 while (cur > nthreads) 1181
394 { 1182 req->type = EIO_WD_OPEN;
395 end_thread (); 1183 req_set_path1 (req, pathname);
1184
1185 REQ_SEND;
1186}
1187
1188void
1189aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1190 PPCODE:
1191{
1192 dREQ;
1193
1194 req->type = EIO_OPEN;
1195 req_set_path1 (req, pathname);
1196 req->int1 = flags;
1197 req->int2 = mode;
1198
1199 REQ_SEND;
1200}
1201
1202void
1203aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1204 ALIAS:
1205 aio_fsync = EIO_FSYNC
1206 aio_fdatasync = EIO_FDATASYNC
1207 aio_syncfs = EIO_SYNCFS
1208 PPCODE:
1209{
1210 int fd = s_fileno_croak (fh, 0);
1211 dREQ;
1212
1213 req->type = ix;
1214 req->sv1 = newSVsv (fh);
1215 req->int1 = fd;
1216
1217 REQ_SEND;
1218}
1219
1220void
1221aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1222 PPCODE:
1223{
1224 int fd = s_fileno_croak (fh, 0);
1225 dREQ;
1226
1227 req->type = EIO_SYNC_FILE_RANGE;
1228 req->sv1 = newSVsv (fh);
1229 req->int1 = fd;
1230 req->offs = offset;
1231 req->size = nbytes;
1232 req->int2 = flags;
1233
1234 REQ_SEND;
1235}
1236
1237void
1238aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1239 PPCODE:
1240{
1241 int fd = s_fileno_croak (fh, 0);
1242 dREQ;
1243
1244 req->type = EIO_FALLOCATE;
1245 req->sv1 = newSVsv (fh);
1246 req->int1 = fd;
1247 req->int2 = mode;
1248 req->offs = offset;
1249 req->size = len;
1250
1251 REQ_SEND;
1252}
1253
1254void
1255aio_close (SV *fh, SV *callback = &PL_sv_undef)
1256 PPCODE:
1257{
1258 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1259 int fd = s_fileno_croak (fh, 0);
1260 dREQ;
1261
1262 if (expect_false (close_fd < 0))
1263 {
1264 int pipefd [2];
1265
1266 if (
1267#ifdef _WIN32
1268 _pipe (pipefd, 1, _O_BINARY) < 0
1269#else
1270 pipe (pipefd) < 0
1271 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1272#endif
1273 || close (pipefd [1]) < 0
396 cur--; 1274 )
1275 abort (); /*D*/
1276
1277 close_fd = pipefd [0];
397 } 1278 }
398 1279
399 while (started > nthreads) 1280 req->type = EIO_DUP2;
1281 req->int1 = close_fd;
1282 req->sv2 = newSVsv (fh);
1283 req->int2 = fd;
1284
1285 REQ_SEND;
1286}
1287
1288void
1289aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1290 PPCODE:
1291{
1292 int fd = s_fileno_croak (fh, 0);
1293 dREQ;
1294
1295 req->type = EIO_SEEK;
1296 req->sv1 = newSVsv (fh);
1297 req->int1 = fd;
1298 req->offs = SvVAL64 (offset);
1299 req->int2 = whence;
1300
1301 REQ_SEND;
1302}
1303
1304void
1305aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1306 ALIAS:
1307 aio_read = EIO_READ
1308 aio_write = EIO_WRITE
1309 PPCODE:
1310{
1311 STRLEN svlen;
1312 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1313 char *svptr = SvPVbyte (data, svlen);
1314 UV len = SvUV (length);
1315
1316 if (dataoffset < 0)
1317 dataoffset += svlen;
1318
1319 if (dataoffset < 0 || dataoffset > svlen)
1320 croak ("dataoffset outside of data scalar");
1321
1322 if (ix == EIO_WRITE)
1323 {
1324 /* write: check length and adjust. */
1325 if (!SvOK (length) || len + dataoffset > svlen)
1326 len = svlen - dataoffset;
1327 }
1328 else
1329 {
1330 /* read: check type and grow scalar as necessary */
1331 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1332 svptr = sv_grow (data, len + dataoffset + 1);
1333 else if (SvCUR (data) < len + dataoffset)
1334 croak ("length + dataoffset outside of scalar, and cannot grow");
1335 }
1336
1337 {
1338 dREQ;
1339
1340 req->type = ix;
1341 req->sv1 = newSVsv (fh);
1342 req->int1 = fd;
1343 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1344 req->size = len;
1345 req->sv2 = SvREFCNT_inc (data);
1346 req->ptr2 = (char *)svptr + dataoffset;
1347 req->stroffset = dataoffset;
1348
1349 if (!SvREADONLY (data))
1350 {
1351 SvREADONLY_on (data);
1352 req->flags |= FLAG_SV2_RO_OFF;
1353 }
1354
1355 REQ_SEND;
1356 }
1357}
1358
1359void
1360aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1361 ALIAS:
1362 aio_ioctl = EIO_IOCTL
1363 aio_fcntl = EIO_FCNTL
1364 PPCODE:
1365{
1366 int fd = s_fileno_croak (fh, 0);
1367 char *svptr;
1368
1369 if (SvPOK (arg) || !SvNIOK (arg))
1370 {
1371 STRLEN svlen;
1372 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1373#ifdef IOCPARM_LEN
1374 STRLEN need = IOCPARM_LEN (request);
1375#else
1376 STRLEN need = 256;
1377#endif
1378
1379 if (svlen < need)
1380 svptr = SvGROW (arg, need);
1381 }
1382 else
1383 svptr = (char *)SvIV (arg);
1384
1385 {
1386 dREQ;
1387
1388 req->type = ix;
1389 req->sv1 = newSVsv (fh);
1390 req->int1 = fd;
1391 req->int2 = (long)request;
1392 req->sv2 = SvREFCNT_inc (arg);
1393 req->ptr2 = svptr;
1394
1395 REQ_SEND;
1396 }
1397}
1398
1399void
1400aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1401 ALIAS:
1402 aio_readlink = EIO_READLINK
1403 aio_realpath = EIO_REALPATH
1404 PPCODE:
1405{
1406 dREQ;
1407
1408 req->type = ix;
1409 req_set_path1 (req, pathname);
1410
1411 REQ_SEND;
1412}
1413
1414void
1415aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1416 PPCODE:
1417{
1418 int ifd = s_fileno_croak (in_fh , 0);
1419 int ofd = s_fileno_croak (out_fh, 1);
1420 dREQ;
1421
1422 req->type = EIO_SENDFILE;
1423 req->sv1 = newSVsv (out_fh);
1424 req->int1 = ofd;
1425 req->sv2 = newSVsv (in_fh);
1426 req->int2 = ifd;
1427 req->offs = in_offset;
1428 req->size = length;
1429
1430 REQ_SEND;
1431}
1432
1433void
1434aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1435 PPCODE:
1436{
1437 int fd = s_fileno_croak (fh, 0);
1438 dREQ;
1439
1440 req->type = EIO_READAHEAD;
1441 req->sv1 = newSVsv (fh);
1442 req->int1 = fd;
1443 req->offs = offset;
1444 req->size = length;
1445
1446 REQ_SEND;
1447}
1448
1449void
1450aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1451 ALIAS:
1452 aio_stat = EIO_STAT
1453 aio_lstat = EIO_LSTAT
1454 aio_statvfs = EIO_STATVFS
1455 PPCODE:
1456{
1457 dREQ;
1458
1459 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1460
1461 REQ_SEND;
1462}
1463
1464UV
1465major (UV dev)
1466 ALIAS:
1467 minor = 1
1468 CODE:
1469 RETVAL = ix ? minor (dev) : major (dev);
1470 OUTPUT:
1471 RETVAL
1472
1473UV
1474makedev (UV maj, UV min)
1475 CODE:
1476 RETVAL = makedev (maj, min);
1477 OUTPUT:
1478 RETVAL
1479
1480void
1481aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1482 PPCODE:
1483{
1484 dREQ;
1485
1486 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1487 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1488 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1489
1490 REQ_SEND;
1491}
1492
1493void
1494aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1495 PPCODE:
1496{
1497 dREQ;
1498
1499 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1500 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1501
1502 REQ_SEND;
1503}
1504
1505void
1506aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1507 PPCODE:
1508{
1509 dREQ;
1510
1511 req->int2 = mode;
1512 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1513
1514 REQ_SEND;
1515}
1516
1517void
1518aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1519 PPCODE:
1520{
1521 dREQ;
1522
1523 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1524 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1525 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1526
1527 REQ_SEND;
1528}
1529
1530void
1531aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1532 PPCODE:
1533{
1534 dREQ;
1535
1536 req->type = EIO_READDIR;
1537 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1538
1539 if (flags & EIO_READDIR_DENTS)
1540 req->int1 |= EIO_READDIR_CUSTOM2;
1541
1542 req_set_path1 (req, pathname);
1543
1544 REQ_SEND;
1545}
1546
1547void
1548aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1549 PPCODE:
1550{
1551 dREQ;
1552
1553 req->type = EIO_MKDIR;
1554 req->int2 = mode;
1555 req_set_path1 (req, pathname);
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1562 ALIAS:
1563 aio_unlink = EIO_UNLINK
1564 aio_rmdir = EIO_RMDIR
1565 aio_readdir = EIO_READDIR
1566 PPCODE:
1567{
1568 dREQ;
1569
1570 req->type = ix;
1571 req_set_path1 (req, pathname);
1572
1573 REQ_SEND;
1574}
1575
1576void
1577aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1578 ALIAS:
1579 aio_link = EIO_LINK
1580 aio_symlink = EIO_SYMLINK
1581 aio_rename = EIO_RENAME
1582 PPCODE:
1583{
1584 eio_wd wd2 = 0;
1585 dREQ;
1586
1587 req->type = ix;
1588 req_set_path1 (req, oldpath);
1589 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1590 req->int3 = (long)wd2;
1591
1592 REQ_SEND;
1593}
1594
1595void
1596aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req->type = EIO_MKNOD;
1602 req->int2 = (mode_t)mode;
1603 req->offs = dev;
1604 req_set_path1 (req, pathname);
1605
1606 REQ_SEND;
1607}
1608
1609void
1610aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1611 ALIAS:
1612 aio_mtouch = EIO_MTOUCH
1613 aio_msync = EIO_MSYNC
1614 PPCODE:
1615{
1616 STRLEN svlen;
1617 char *svptr = SvPVbyte (data, svlen);
1618 UV len = SvUV (length);
1619
1620 if (flags < 0)
1621 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1622
1623 if (offset < 0)
1624 offset += svlen;
1625
1626 if (offset < 0 || offset > svlen)
1627 croak ("offset outside of scalar");
1628
1629 if (!SvOK (length) || len + offset > svlen)
1630 len = svlen - offset;
1631
1632 {
1633 dREQ;
1634
1635 req->type = ix;
1636 req->sv2 = SvREFCNT_inc (data);
1637 req->ptr2 = (char *)svptr + offset;
1638 req->size = len;
1639 req->int1 = flags;
1640
1641 REQ_SEND;
1642 }
1643}
1644
1645void
1646aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1647 PPCODE:
1648{
1649 STRLEN svlen;
1650 char *svptr = SvPVbyte (data, svlen);
1651 UV len = SvUV (length);
1652
1653 if (offset < 0)
1654 offset += svlen;
1655
1656 if (offset < 0 || offset > svlen)
1657 croak ("offset outside of scalar");
1658
1659 if (!SvOK (length) || len + offset > svlen)
1660 len = svlen - offset;
1661
1662 {
1663 dREQ;
1664
1665 req->type = EIO_MLOCK;
1666 req->sv2 = SvREFCNT_inc (data);
1667 req->ptr2 = (char *)svptr + offset;
1668 req->size = len;
1669
1670 REQ_SEND;
1671 }
1672}
1673
1674void
1675aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1676 PPCODE:
1677{
1678 dREQ;
1679
1680 req->type = EIO_MLOCKALL;
1681 req->int1 = flags;
1682
1683 REQ_SEND;
1684}
1685
1686void
1687aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1688 PPCODE:
1689{
1690 int fd = s_fileno_croak (fh, 0);
1691 dREQ;
1692
1693 req->type = EIO_CUSTOM;
1694 req->sv1 = newSVsv (fh);
1695 req->int1 = fd;
1696
1697 req->feed = fiemap;
1698#if HAVE_FIEMAP
1699 /* keep our fingers crossed that the next two types are 64 bit */
1700 req->offs = start;
1701 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1702 req->int2 = flags;
1703 req->int3 = SvOK (count) ? SvIV (count) : -1;
1704#endif
1705
1706 REQ_SEND;
1707}
1708
1709void
1710aio_busy (double delay, SV *callback = &PL_sv_undef)
1711 PPCODE:
1712{
1713 dREQ;
1714
1715 req->type = EIO_BUSY;
1716 req->nv1 = delay < 0. ? 0. : delay;
1717
1718 REQ_SEND;
1719}
1720
1721void
1722aio_group (SV *callback = &PL_sv_undef)
1723 PPCODE:
1724{
1725 dREQ;
1726
1727 req->type = EIO_GROUP;
1728
1729 PUTBACK;
1730 req_submit (req);
1731 SPAGAIN;
1732
1733 XPUSHs (req_sv (req, aio_grp_stash));
1734}
1735
1736void
1737aio_nop (SV *callback = &PL_sv_undef)
1738 ALIAS:
1739 aio_nop = EIO_NOP
1740 aio_sync = EIO_SYNC
1741 PPCODE:
1742{
1743 dREQ;
1744
1745 req->type = ix;
1746
1747 REQ_SEND;
1748}
1749
1750int
1751aioreq_pri (int pri = NO_INIT)
1752 CODE:
1753 RETVAL = next_pri;
1754 if (items > 0)
1755 {
1756 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1757 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1758 next_pri = pri;
1759 }
1760 OUTPUT:
1761 RETVAL
1762
1763void
1764aioreq_nice (int nice = 0)
1765 CODE:
1766 nice = next_pri - nice;
1767 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1768 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1769 next_pri = nice;
1770
1771void
1772flush ()
1773 CODE:
1774 while (eio_nreqs ())
400 { 1775 {
401 poll_wait (); 1776 poll_wait ();
402 poll_cb (); 1777 poll_cb ();
403 } 1778 }
404}
405 1779
406int 1780int
407max_outstanding(nreqs) 1781poll ()
408 int nreqs
409 PROTOTYPE: $
410 CODE:
411 RETVAL = max_outstanding;
412 max_outstanding = nreqs;
413
414void
415aio_open(pathname,flags,mode,callback)
416 SV * pathname
417 int flags
418 int mode
419 SV * callback
420 PROTOTYPE: $$$$
421 CODE: 1782 CODE:
422{
423 aio_req req;
424
425 Newz (0, req, 1, aio_cb);
426
427 if (!req)
428 croak ("out of memory during aio_req allocation");
429
430 req->type = REQ_OPEN;
431 req->data = newSVsv (pathname);
432 req->dataptr = SvPV_nolen (req->data);
433 req->fd = flags;
434 req->mode = mode;
435 req->callback = SvREFCNT_inc (callback);
436
437 send_req (req);
438}
439
440void
441aio_close(fh,callback)
442 InputStream fh
443 SV * callback
444 PROTOTYPE: $$
445 ALIAS:
446 aio_close = REQ_CLOSE
447 aio_fsync = REQ_FSYNC
448 aio_fdatasync = REQ_FDATASYNC
449 CODE:
450{
451 aio_req req;
452
453 Newz (0, req, 1, aio_cb);
454
455 if (!req)
456 croak ("out of memory during aio_req allocation");
457
458 req->type = ix;
459 req->fd = PerlIO_fileno (fh);
460 req->callback = SvREFCNT_inc (callback);
461
462 send_req (req);
463}
464
465void
466aio_read(fh,offset,length,data,dataoffset,callback)
467 InputStream fh
468 UV offset
469 IV length
470 SV * data
471 IV dataoffset
472 SV * callback
473 PROTOTYPE: $$$$$$
474 CODE:
475 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
476
477void
478aio_write(fh,offset,length,data,dataoffset,callback)
479 OutputStream fh
480 UV offset
481 IV length
482 SV * data
483 IV dataoffset
484 SV * callback
485 PROTOTYPE: $$$$$$
486 CODE:
487 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
488
489void
490aio_readahead(fh,offset,length,callback)
491 InputStream fh
492 UV offset
493 IV length
494 SV * callback
495 PROTOTYPE: $$$$
496 CODE:
497{
498 aio_req req;
499
500 if (length < 0)
501 croak ("length must not be negative");
502
503 Newz (0, req, 1, aio_cb);
504
505 if (!req)
506 croak ("out of memory during aio_req allocation");
507
508 req->type = REQ_READAHEAD;
509 req->fd = PerlIO_fileno (fh);
510 req->offset = offset;
511 req->length = length;
512 req->callback = SvREFCNT_inc (callback);
513
514 send_req (req);
515}
516
517void
518aio_stat(fh_or_path,callback)
519 SV * fh_or_path
520 SV * callback
521 PROTOTYPE: $$
522 ALIAS:
523 aio_lstat = 1
524 CODE:
525{
526 aio_req req;
527
528 Newz (0, req, 1, aio_cb);
529
530 if (!req)
531 croak ("out of memory during aio_req allocation");
532
533 New (0, req->statdata, 1, Stat_t);
534
535 if (!req->statdata)
536 croak ("out of memory during aio_req->statdata allocation");
537
538 if (SvPOK (fh_or_path))
539 {
540 req->type = ix ? REQ_LSTAT : REQ_STAT;
541 req->data = newSVsv (fh_or_path);
542 req->dataptr = SvPV_nolen (req->data);
543 }
544 else
545 {
546 req->type = REQ_FSTAT;
547 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
548 }
549
550 req->callback = SvREFCNT_inc (callback);
551
552 send_req (req);
553}
554
555void
556aio_unlink(pathname,callback)
557 SV * pathname
558 SV * callback
559 PROTOTYPE: $$
560 CODE:
561{
562 aio_req req;
563
564 Newz (0, req, 1, aio_cb);
565
566 if (!req)
567 croak ("out of memory during aio_req allocation");
568
569 req->type = REQ_UNLINK;
570 req->data = newSVsv (pathname);
571 req->dataptr = SvPV_nolen (req->data);
572 req->callback = SvREFCNT_inc (callback);
573
574 send_req (req);
575}
576
577void
578flush()
579 PROTOTYPE:
580 CODE:
581 while (nreqs)
582 {
583 poll_wait (); 1783 poll_wait ();
584 poll_cb (); 1784 RETVAL = poll_cb ();
585 }
586
587int
588poll_fileno()
589 PROTOTYPE:
590 CODE:
591 RETVAL = respipe [0];
592 OUTPUT: 1785 OUTPUT:
593 RETVAL 1786 RETVAL
594 1787
595int 1788int
1789poll_fileno ()
1790 CODE:
1791 RETVAL = s_epipe_fd (&respipe);
1792 OUTPUT:
1793 RETVAL
1794
1795int
596poll_cb(...) 1796poll_cb (...)
597 PROTOTYPE: 1797 PROTOTYPE:
598 CODE: 1798 CODE:
599 RETVAL = poll_cb (); 1799 RETVAL = poll_cb ();
600 OUTPUT: 1800 OUTPUT:
601 RETVAL 1801 RETVAL
602 1802
603void 1803void
604poll_wait() 1804poll_wait ()
605 PROTOTYPE:
606 CODE: 1805 CODE:
607 if (nreqs)
608 poll_wait (); 1806 poll_wait ();
609 1807
610int 1808int
611nreqs() 1809nreqs ()
612 PROTOTYPE:
613 CODE: 1810 CODE:
614 RETVAL = nreqs; 1811 RETVAL = eio_nreqs ();
615 OUTPUT: 1812 OUTPUT:
616 RETVAL 1813 RETVAL
617 1814
1815int
1816nready ()
1817 CODE:
1818 RETVAL = eio_nready ();
1819 OUTPUT:
1820 RETVAL
1821
1822int
1823npending ()
1824 CODE:
1825 RETVAL = eio_npending ();
1826 OUTPUT:
1827 RETVAL
1828
1829int
1830nthreads ()
1831 CODE:
1832 RETVAL = eio_nthreads ();
1833 OUTPUT:
1834 RETVAL
1835
1836int
1837fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1838 CODE:
1839 RETVAL = posix_fadvise (fh, offset, length, advice);
1840 OUTPUT:
1841 RETVAL
1842
1843IV
1844sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1845 CODE:
1846 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1847 OUTPUT:
1848 RETVAL
1849
1850void
1851mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1852 PPCODE:
1853 sv_unmagic (scalar, MMAP_MAGIC);
1854{
1855 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1856 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1857 if (addr == (void *)-1)
1858 XSRETURN_NO;
1859
1860 sv_force_normal (scalar);
1861
1862 /* we store the length in mg_obj, as namlen is I32 :/ */
1863 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1864 ->mg_obj = (SV *)length;
1865
1866 SvUPGRADE (scalar, SVt_PV); /* nop... */
1867
1868 if (!(prot & PROT_WRITE))
1869 SvREADONLY_on (scalar);
1870
1871 if (SvLEN (scalar))
1872 Safefree (SvPVX (scalar));
1873
1874 SvPVX (scalar) = (char *)addr;
1875 SvCUR_set (scalar, length);
1876 SvLEN_set (scalar, 0);
1877 SvPOK_only (scalar);
1878
1879 XSRETURN_YES;
1880}
1881
1882void
1883munmap (SV *scalar)
1884 CODE:
1885 sv_unmagic (scalar, MMAP_MAGIC);
1886
1887int
1888madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1889 ALIAS:
1890 mprotect = 1
1891 CODE:
1892{
1893 STRLEN svlen;
1894 void *addr = SvPVbyte (scalar, svlen);
1895 STRLEN len = SvUV (length);
1896
1897 if (offset < 0)
1898 offset += svlen;
1899
1900 if (offset < 0 || offset > svlen)
1901 croak ("offset outside of scalar");
1902
1903 if (!SvOK (length) || len + offset > svlen)
1904 len = svlen - offset;
1905
1906 addr = (void *)(((intptr_t)addr) + offset);
1907 eio_page_align (&addr, &len);
1908
1909 switch (ix)
1910 {
1911 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1912 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1913 }
1914}
1915 OUTPUT:
1916 RETVAL
1917
1918int
1919munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1920 CODE:
1921{
1922 STRLEN svlen;
1923 void *addr = SvPVbyte (scalar, svlen);
1924 size_t len = SvUV (length);
1925
1926 if (offset < 0)
1927 offset += svlen;
1928
1929 if (offset < 0 || offset > svlen)
1930 croak ("offset outside of scalar");
1931
1932 if (!SvOK (length) || len + offset > svlen)
1933 len = svlen - offset;
1934
1935 addr = (void *)(((intptr_t)addr) + offset);
1936 eio_page_align (&addr, &len);
1937#if _POSIX_MEMLOCK_RANGE
1938 RETVAL = munlock (addr, len);
1939#else
1940 RETVAL = EIO_ENOSYS ();
1941#endif
1942}
1943 OUTPUT:
1944 RETVAL
1945
1946int
1947munlockall ()
1948 CODE:
1949#if _POSIX_MEMLOCK
1950 munlockall ();
1951#else
1952 RETVAL = EIO_ENOSYS ();
1953#endif
1954 OUTPUT:
1955 RETVAL
1956
1957int
1958splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1959 CODE:
1960{
1961#if HAVE_LINUX_SPLICE
1962 loff_t off_in_, off_out_;
1963 RETVAL = splice (
1964 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1965 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1966 length, flags
1967 );
1968#else
1969 RETVAL = EIO_ENOSYS ();
1970#endif
1971}
1972 OUTPUT:
1973 RETVAL
1974
1975int
1976tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1977 CODE:
1978#if HAVE_LINUX_SPLICE
1979 RETVAL = tee (rfh, wfh, length, flags);
1980#else
1981 RETVAL = EIO_ENOSYS ();
1982#endif
1983 OUTPUT:
1984 RETVAL
1985
1986int
1987pipesize (aio_rfd rfh, int new_size = -1)
1988 PROTOTYPE: $;$
1989 CODE:
1990#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1991 if (new_size >= 0)
1992 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1993 else
1994 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1995#else
1996 errno = ENOSYS;
1997 RETVAL = -1;
1998#endif
1999 OUTPUT:
2000 RETVAL
2001
2002void
2003pipe2 (int flags = 0)
2004 PROTOTYPE: ;$
2005 PPCODE:
2006{
2007 int fd[2];
2008 int res;
2009
2010 if (flags)
2011#if HAVE_PIPE2
2012 res = pipe2 (fd, flags);
2013#else
2014 res = (errno = ENOSYS, -1);
2015#endif
2016 else
2017 res = pipe (fd);
2018
2019 if (!res)
2020 {
2021 EXTEND (SP, 2);
2022 PUSHs (newmortalFH (fd[0], O_RDONLY));
2023 PUSHs (newmortalFH (fd[1], O_WRONLY));
2024 }
2025}
2026
2027void _on_next_submit (SV *cb)
2028 CODE:
2029 SvREFCNT_dec (on_next_submit);
2030 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2031
2032PROTOTYPES: DISABLE
2033
2034MODULE = IO::AIO PACKAGE = IO::AIO::WD
2035
2036BOOT:
2037{
2038 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2039 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2040}
2041
2042void
2043DESTROY (SV *self)
2044 CODE:
2045{
2046 aio_wd wd = SvAIO_WD (self);
2047#if HAVE_AT
2048 {
2049 SV *callback = &PL_sv_undef;
2050 dREQ; /* clobbers next_pri :/ */
2051 next_pri = req->pri; /* restore next_pri */
2052 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2053 req->type = EIO_WD_CLOSE;
2054 req->wd = wd;
2055 REQ_SEND;
2056 }
2057#else
2058 eio_wd_close_sync (wd);
2059#endif
2060}
2061
2062MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2063
2064void
2065cancel (aio_req_ornot req)
2066 CODE:
2067 eio_cancel (req);
2068
2069void
2070cb (aio_req_ornot req, SV *callback = NO_INIT)
2071 PPCODE:
2072{
2073 if (GIMME_V != G_VOID)
2074 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2075
2076 if (items > 1)
2077 {
2078 SV *cb_cv = get_cb (callback);
2079
2080 SvREFCNT_dec (req->callback);
2081 req->callback = SvREFCNT_inc (cb_cv);
2082 }
2083}
2084
2085MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2086
2087void
2088add (aio_req grp, ...)
2089 PPCODE:
2090{
2091 int i;
2092
2093 if (grp->int1 == 2)
2094 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2095
2096 for (i = 1; i < items; ++i )
2097 {
2098 aio_req req;
2099
2100 if (GIMME_V != G_VOID)
2101 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2102
2103 req = SvAIO_REQ (ST (i));
2104
2105 if (req)
2106 eio_grp_add (grp, req);
2107 }
2108}
2109
2110void
2111cancel_subs (aio_req_ornot req)
2112 CODE:
2113 req_cancel_subs (req);
2114
2115void
2116result (aio_req grp, ...)
2117 CODE:
2118{
2119 int i;
2120 AV *av;
2121
2122 grp->errorno = errno;
2123
2124 av = newAV ();
2125 av_extend (av, items - 1);
2126
2127 for (i = 1; i < items; ++i )
2128 av_push (av, newSVsv (ST (i)));
2129
2130 SvREFCNT_dec (grp->sv1);
2131 grp->sv1 = (SV *)av;
2132}
2133
2134void
2135errno (aio_req grp, int errorno = errno)
2136 CODE:
2137 grp->errorno = errorno;
2138
2139void
2140limit (aio_req grp, int limit)
2141 CODE:
2142 eio_grp_limit (grp, limit);
2143
2144void
2145feed (aio_req grp, SV *callback = &PL_sv_undef)
2146 CODE:
2147{
2148 SvREFCNT_dec (grp->sv2);
2149 grp->sv2 = newSVsv (callback);
2150 grp->feed = aio_grp_feed;
2151
2152 if (grp->int2 <= 0)
2153 grp->int2 = 2;
2154
2155 eio_grp_limit (grp, grp->int2);
2156}
2157

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