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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.79 by root, Thu Oct 26 16:28:33 2006 UTC vs.
Revision 1.266 by root, Tue Aug 14 14:03:14 2018 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#if !defined mg_findext
18 10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 11#endif
20 12
21#include <stddef.h> 13#include <stddef.h>
14#include <stdlib.h>
22#include <errno.h> 15#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
26#include <sys/stat.h> 18#include <sys/stat.h>
27#include <limits.h> 19#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 20#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 21#include <sched.h>
32 22
33#if HAVE_SENDFILE 23#if HAVE_SYS_MKDEV_H
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h> 24# include <sys/mkdev.h>
25#elif HAVE_SYS_SYSMACROS_H
26# include <sys/sysmacros.h>
27#endif
28
29#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
38# include <sys/uio.h> 30# include <sys/mman.h>
39# elif __hpux 31#endif
32
33/* the incompetent fool that created musl keeps __linux__, refuses
34 * to implement any linux standard apis, and also has no way to test
35 * for his broken iplementation. don't complain to me if this fails
36 * for you.
37 */
38#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
39# include <linux/fs.h>
40# ifdef FS_IOC_FIEMAP
41# include <linux/types.h>
42# include <linux/fiemap.h>
43# define HAVE_FIEMAP 1
44# endif
45#endif
46
47/* perl namespace pollution */
48#undef VERSION
49
50/* perl stupidly overrides readdir and maybe others */
51/* with thread-unsafe versions, imagine that :( */
52#undef readdir
53#undef opendir
54#undef closedir
55
56#ifdef _WIN32
57
58 // perl overrides all those nice libc functions
59
60 #undef malloc
61 #undef free
62 #undef open
63 #undef read
64 #undef write
65 #undef send
66 #undef recv
67 #undef stat
68 #undef lstat
69 #undef fstat
70 #undef truncate
71 #undef ftruncate
72 #undef open
73 #undef link
74 #undef close
75 #undef unlink
76 #undef mkdir
77 #undef rmdir
78 #undef rename
79 #undef lseek
80 #undef opendir
81 #undef readdir
82 #undef closedir
83 #undef chmod
84 #undef fchmod
85 #undef dup
86 #undef dup2
87 #undef abort
88 #undef pipe
89
90 #define EIO_STRUCT_STAT struct _stati64
91 #define EIO_STRUCT_STATI64
92
93#else
94
40# include <sys/socket.h> 95 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 96 #include <sys/select.h>
97 #include <unistd.h>
98 #include <utime.h>
99 #include <signal.h>
100
101 #define EIO_STRUCT_STAT Stat_t
102
103#endif
104
105/*****************************************************************************/
106
107#if __GNUC__ >= 3
108# define expect(expr,value) __builtin_expect ((expr),(value))
109#else
110# define expect(expr,value) (expr)
111#endif
112
113#define expect_false(expr) expect ((expr) != 0, 0)
114#define expect_true(expr) expect ((expr) != 0, 1)
115
116/*****************************************************************************/
117
118#include "config.h"
119
120#if HAVE_ST_XTIMENSEC
121# define ATIMENSEC PL_statcache.st_atimensec
122# define MTIMENSEC PL_statcache.st_mtimensec
123# define CTIMENSEC PL_statcache.st_ctimensec
124#elif HAVE_ST_XTIMESPEC
125# define ATIMENSEC PL_statcache.st_atim.tv_nsec
126# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
127# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
128#else
129# define ATIMENSEC 0
130# define MTIMENSEC 0
131# define CTIMENSEC 0
132#endif
133
134#include "schmorp.h"
135
136#if HAVE_EVENTFD
137# include <sys/eventfd.h>
138#endif
139
140#if HAVE_TIMERFD
141# include <sys/timerfd.h>
142#endif
143
144#if HAVE_RLIMITS
145 #include <sys/time.h>
146 #include <sys/resource.h>
147#endif
148
149typedef SV SV8; /* byte-sv, used for argument-checking */
150typedef int aio_rfd; /* read file desriptor */
151typedef int aio_wfd; /* write file descriptor */
152
153static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
154
155#define EIO_REQ_MEMBERS \
156 SV *callback; \
157 SV *sv1, *sv2; \
158 SV *sv3, *sv4; \
159 STRLEN stroffset; \
160 SV *self;
161
162#define EIO_NO_WRAPPERS 1
163
164#include "libeio/eio.h"
165
166static int req_invoke (eio_req *req);
167#define EIO_FINISH(req) req_invoke (req)
168static void req_destroy (eio_req *grp);
169#define EIO_DESTROY(req) req_destroy (req)
170
171#include "libeio/eio.c"
172
173#if !HAVE_POSIX_FADVISE
174# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
175#endif
176
177#if !HAVE_POSIX_MADVISE
178# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
179#endif
180
181#ifndef MAP_ANONYMOUS
182# ifdef MAP_ANON
183# define MAP_ANONYMOUS MAP_ANON
43# else 184# else
44# error sendfile support requested but not available 185# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 186# endif
46#endif 187#endif
47 188
48/* used for struct dirent, AIX doesn't provide it */ 189#ifndef makedev
49#ifndef NAME_MAX 190# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif
52
53#ifndef PTHREAD_STACK_MIN
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
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
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 191#endif
192#ifndef major
193# define major(dev) ((dev) >> 8)
76#endif 194#endif
195#ifndef minor
196# define minor(dev) ((dev) & 0xff)
197#endif
77 198
78/* buffer size for various temporary buffers */ 199/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
79#define AIO_BUFSIZE 65536 200#ifdef __sun
201# undef PAGESIZE
202#endif
80 203
81#define dBUF \ 204#if PAGESIZE <= 0
82 char *aio_buf; \ 205# define PAGESIZE sysconf (_SC_PAGESIZE)
83 LOCK (wrklock); \ 206#endif
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 207
85 UNLOCK (wrklock); \ 208/*****************************************************************************/
86 if (!aio_buf) \ 209
210#if !_POSIX_MAPPED_FILES
211# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
212# define munmap(addr,length) EIO_ENOSYS ()
213#endif
214
215#if !_POSIX_MEMORY_PROTECTION
216# define mprotect(addr,len,prot) EIO_ENOSYS ()
217#endif
218
219#if !MREMAP_MAYMOVE
220# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
221#endif
222
223#define FOREIGN_MAGIC PERL_MAGIC_ext
224
225static int ecb_cold
226mmap_free (pTHX_ SV *sv, MAGIC *mg)
227{
228 int old_errno = errno;
229 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
230 errno = old_errno;
231
232 mg->mg_obj = 0; /* just in case */
233
234 SvREADONLY_off (sv);
235
236 if (SvPVX (sv) != mg->mg_ptr)
237 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
238
239 SvCUR_set (sv, 0);
240 SvPVX (sv) = 0;
241 SvOK_off (sv);
242
87 return -1; 243 return 0;
244}
88 245
89enum { 246static MGVTBL mmap_vtbl = {
90 REQ_QUIT, 247 0, 0, 0, 0, mmap_free
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101}; 248};
102 249
103#define AIO_REQ_KLASS "IO::AIO::REQ" 250static int ecb_cold
104#define AIO_GRP_KLASS "IO::AIO::GRP" 251sysfree_free (pTHX_ SV *sv, MAGIC *mg)
105
106typedef struct aio_cb
107{ 252{
108 struct aio_cb *volatile next; 253 free (mg->mg_ptr);
254 mg->mg_obj = 0; /* just in case */
109 255
110 SV *data, *callback; 256 SvREADONLY_off (sv);
111 SV *fh, *fh2;
112 void *dataptr, *data2ptr;
113 Stat_t *statdata;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 257
118 STRLEN dataoffset; 258 if (SvPVX (sv) != mg->mg_ptr)
119 int type; 259 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123 260
124 unsigned char flags; 261 SvCUR_set (sv, 0);
125 unsigned char pri; 262 SvPVX (sv) = 0;
263 SvOK_off (sv);
126 264
127 SV *self; /* the perl counterpart of this request, if any */ 265 return 0;
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 266}
129} aio_cb;
130 267
131enum { 268static MGVTBL sysfree_vtbl = {
132 FLAG_CANCELLED = 0x01, 269 0, 0, 0, 0, sysfree_free
133}; 270};
134 271
135typedef aio_cb *aio_req; 272/*****************************************************************************/
136typedef aio_cb *aio_req_ornot;
137 273
138enum { 274/* helper: set scalar to foreign ptr with custom free */
139 PRI_MIN = -4, 275static void
140 PRI_MAX = 4, 276sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
141
142 DEFAULT_PRI = 0,
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150static volatile unsigned int nreqs, nready, npending;
151static volatile unsigned int max_outstanding = 0xffffffff;
152static int respipe [2];
153
154#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
155# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
156#else
157# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
158#endif
159
160#define LOCK(mutex) pthread_mutex_lock (&(mutex))
161#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
162
163/* worker threads management */
164static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
165
166typedef struct worker {
167 /* locked by wrklock */
168 struct worker *prev, *next;
169
170 pthread_t tid;
171
172 /* locked by reslock, reqlock or wrklock */
173 aio_req req; /* currently processed request */
174 void *dbuf;
175 DIR *dirp;
176} worker;
177
178static worker wrk_first = { &wrk_first, &wrk_first, 0 };
179
180static void worker_clear (worker *wrk)
181{ 277{
182 if (wrk->dirp) 278 sv_force_normal (sv);
279
280 /* we store the length in mg_obj, as namlen is I32 :/ */
281 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
282 ->mg_obj = (SV *)length;
283
284 SvUPGRADE (sv, SVt_PV); /* nop... */
285
286 if (SvLEN (sv))
287 Safefree (SvPVX (sv));
288
289 SvPVX (sv) = (char *)addr;
290 SvCUR_set (sv, length);
291 SvLEN_set (sv, 0);
292 SvPOK_only (sv);
293}
294
295static void
296sv_clear_foreign (SV *sv)
297{
298 /* todo: iterate over magic and only free ours, but of course */
299 /* the perl5porters will call that (correct) behaviour buggy */
300 sv_unmagic (sv, FOREIGN_MAGIC);
301}
302
303/*****************************************************************************/
304
305/* defines all sorts of constants to 0 unless they are already defined */
306/* also provides const_iv_ and const_niv_ macros for them */
307#include "def0.h"
308
309/*****************************************************************************/
310
311static void
312fiemap (eio_req *req)
313{
314 req->result = -1;
315
316#if HAVE_FIEMAP
317 /* assume some c99 */
318 struct fiemap *fiemap = 0;
319 size_t end_offset;
320 int count = req->int3;
321
322 req->flags |= EIO_FLAG_PTR1_FREE;
323
324 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
325 /* increase in 3.5kb steps */
326 if (count < 0)
327 count = 8;
328
329 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
330 errno = ENOMEM;
331 if (!fiemap)
332 return;
333
334 req->ptr1 = fiemap;
335
336 fiemap->fm_start = req->offs;
337 fiemap->fm_length = req->size;
338 fiemap->fm_flags = req->int2;
339 fiemap->fm_extent_count = count;
340
341 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
342 return;
343
344 if (req->int3 >= 0 /* not autosizing */
345 || !fiemap->fm_mapped_extents /* no more extents */
346 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
347 goto done;
348
349 /* else we have to loop -
350 * it would be tempting (actually I tried that first) to just query the
351 * number of extents needed, but linux often feels like not returning all
352 * extents, without telling us it left any out. this complicates
353 * this quite a bit.
354 */
355
356 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
357
358 for (;;)
183 { 359 {
184 closedir (wrk->dirp); 360 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
185 wrk->dirp = 0; 361 char scratch[3072];
186 } 362 struct fiemap *incmap = (struct fiemap *)scratch;
187 363
188 if (wrk->dbuf) 364 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
189 { 365 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
190 free (wrk->dbuf); 366 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
191 wrk->dbuf = 0; 367 incmap->fm_flags = fiemap->fm_flags;
192 } 368 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
193}
194 369
195static void worker_free (worker *wrk) 370 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
196{
197 wrk->next->prev = wrk->prev;
198 wrk->prev->next = wrk->next;
199
200 free (wrk);
201}
202
203static pthread_mutex_t reslock = AIO_MUTEX_INIT;
204static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
205static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
206
207/*
208 * a somewhat faster data structure might be nice, but
209 * with 8 priorities this actually needs <20 insns
210 * per shift, the most expensive operation.
211 */
212typedef struct {
213 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
214 int size;
215} reqq;
216
217static reqq req_queue;
218static reqq res_queue;
219
220int reqq_push (reqq *q, aio_req req)
221{
222 int pri = req->pri;
223 req->next = 0;
224
225 if (q->qe[pri])
226 {
227 q->qe[pri]->next = req;
228 q->qe[pri] = req;
229 }
230 else
231 q->qe[pri] = q->qs[pri] = req;
232
233 return q->size++;
234}
235
236aio_req reqq_shift (reqq *q)
237{
238 int pri;
239
240 if (!q->size)
241 return 0; 371 return;
242 372
243 --q->size; 373 if (!incmap->fm_mapped_extents)
374 goto done;
244 375
245 for (pri = NUM_PRI; pri--; ) 376 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
246 { 377 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
247 aio_req req = q->qs[pri]; 378 errno = ENOMEM;
248
249 if (req) 379 if (!fiemap)
380 return;
381
382 req->ptr1 = fiemap;
383
384 for (count = 0; count < incmap->fm_mapped_extents; ++count)
250 { 385 {
251 if (!(q->qs[pri] = req->next)) 386 struct fiemap_extent *e = incmap->fm_extents + count;
252 q->qe[pri] = 0;
253 387
254 return req; 388 if (e->fe_logical + e->fe_length >= end_offset)
389 goto done;
390
391 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
392
393 if (e->fe_flags & FIEMAP_EXTENT_LAST)
394 goto done;
395
255 } 396 }
256 } 397 }
257 398
258 abort (); 399done:
259} 400 req->result = 0;
260 401
261static int poll_cb (int max); 402#else
262static void req_invoke (aio_req req); 403 errno = ENOSYS;
404#endif
405}
406
407/*****************************************************************************/
408
409enum {
410 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
411};
412
413typedef eio_req *aio_req;
414typedef eio_req *aio_req_ornot;
415typedef eio_wd aio_wd;
416
417static SV *on_next_submit;
418static int next_pri = EIO_PRI_DEFAULT;
419static int max_outstanding;
420
421static s_epipe respipe;
422
263static void req_free (aio_req req); 423static void req_destroy (aio_req req);
264static void req_cancel (aio_req req); 424static void req_cancel (aio_req req);
265 425
426static void
427want_poll (void)
428{
429 /* write a dummy byte to the pipe so fh becomes ready */
430 s_epipe_signal (&respipe);
431}
432
433static void
434done_poll (void)
435{
436 /* read any signals sent by the worker threads */
437 s_epipe_drain (&respipe);
438}
439
266/* must be called at most once */ 440/* must be called at most once */
267static SV *req_sv (aio_req req, const char *klass) 441static SV *
442req_sv (aio_req req, HV *stash)
268{ 443{
269 if (!req->self) 444 if (!req->self)
270 { 445 {
271 req->self = (SV *)newHV (); 446 req->self = (SV *)newHV ();
272 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 447 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
273 } 448 }
274 449
275 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 450 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
276} 451}
277 452
278static aio_req SvAIO_REQ (SV *sv) 453static SV *
454newSVaio_wd (aio_wd wd)
455{
456 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
457}
458
459static aio_req
460SvAIO_REQ (SV *sv)
279{ 461{
280 MAGIC *mg; 462 MAGIC *mg;
281 463
282 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 464 if (!SvROK (sv)
465 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
466 || (SvSTASH (SvRV (sv)) != aio_grp_stash
467 && SvSTASH (SvRV (sv)) != aio_req_stash
468 && !sv_derived_from (sv, "IO::AIO::REQ")))
283 croak ("object of class " AIO_REQ_KLASS " expected"); 469 croak ("object of class IO::AIO::REQ expected");
284 470
285 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 471 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
286 472
287 return mg ? (aio_req)mg->mg_ptr : 0; 473 return mg ? (aio_req)mg->mg_ptr : 0;
288} 474}
289 475
476static aio_wd
477SvAIO_WD (SV *sv)
478{
479 if (!SvROK (sv)
480 || SvTYPE (SvRV (sv)) != SVt_PVMG
481 || SvSTASH (SvRV (sv)) != aio_wd_stash)
482 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
483
484 return (aio_wd)(long)SvIVX (SvRV (sv));
485}
486
487static SV *
488newmortalFH (int fd, int flags)
489{
490 if (fd < 0)
491 return &PL_sv_undef;
492
493 GV *gv = (GV *)sv_newmortal ();
494 char sym[64];
495 int symlen;
496
497 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
498 gv_init (gv, aio_stash, sym, symlen, 0);
499
500 symlen = snprintf (
501 sym,
502 sizeof (sym),
503 "%s&=%d",
504 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
505 fd
506 );
507
508 return do_open (gv, sym, symlen, 0, 0, 0, 0)
509 ? (SV *)gv : &PL_sv_undef;
510}
511
512static void
290static void aio_grp_feed (aio_req grp) 513aio_grp_feed (aio_req grp)
291{ 514{
292 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 515 if (grp->sv2 && SvOK (grp->sv2))
293 { 516 {
294 int old_len = grp->length;
295
296 if (grp->fh2 && SvOK (grp->fh2))
297 {
298 dSP; 517 dSP;
299 518
300 ENTER; 519 ENTER;
301 SAVETMPS; 520 SAVETMPS;
302 PUSHMARK (SP); 521 PUSHMARK (SP);
303 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 522 XPUSHs (req_sv (grp, aio_grp_stash));
304 PUTBACK; 523 PUTBACK;
305 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 524 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
306 SPAGAIN; 525 SPAGAIN;
307 FREETMPS; 526 FREETMPS;
308 LEAVE; 527 LEAVE;
309 }
310
311 /* stop if no progress has been made */
312 if (old_len == grp->length)
313 {
314 SvREFCNT_dec (grp->fh2);
315 grp->fh2 = 0;
316 break;
317 }
318 } 528 }
319} 529}
320 530
321static void aio_grp_dec (aio_req grp) 531static void
532req_submit (eio_req *req)
322{ 533{
323 --grp->length; 534 eio_submit (req);
324 535
325 /* call feeder, if applicable */ 536 if (expect_false (on_next_submit))
326 aio_grp_feed (grp);
327
328 /* finish, if done */
329 if (!grp->length && grp->fd)
330 { 537 {
331 req_invoke (grp); 538 dSP;
332 req_free (grp); 539 SV *cb = sv_2mortal (on_next_submit);
540
541 on_next_submit = 0;
542
543 PUSHMARK (SP);
544 PUTBACK;
545 call_sv (cb, G_DISCARD | G_EVAL);
333 } 546 }
334} 547}
335 548
336static void poll_wait () 549static int
550req_invoke (eio_req *req)
337{ 551{
338 fd_set rfd; 552 if (req->flags & FLAG_SV2_RO_OFF)
553 SvREADONLY_off (req->sv2);
339 554
340 while (nreqs) 555 if (!EIO_CANCELLED (req) && req->callback)
341 { 556 {
342 int size;
343 if (WORDREAD_UNSAFE) LOCK (reslock);
344 size = res_queue.size;
345 if (WORDREAD_UNSAFE) UNLOCK (reslock);
346
347 if (size)
348 return;
349
350 FD_ZERO(&rfd);
351 FD_SET(respipe [0], &rfd);
352
353 select (respipe [0] + 1, &rfd, 0, 0, 0);
354 }
355}
356
357static void req_invoke (aio_req req)
358{
359 dSP; 557 dSP;
558 static SV *sv_result_cache; /* caches the result integer SV */
559 SV *sv_result;
360 560
361 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
362 {
363 ENTER; 561 ENTER;
364 SAVETMPS; 562 SAVETMPS;
365 PUSHMARK (SP); 563 PUSHMARK (SP);
366 EXTEND (SP, 1); 564 EXTEND (SP, 1);
367 565
566 /* do not recreate the result IV from scratch each time */
567 if (expect_true (sv_result_cache))
568 {
569 sv_result = sv_result_cache; sv_result_cache = 0;
570 SvIV_set (sv_result, req->result);
571 SvIOK_only (sv_result);
572 }
573 else
574 {
575 sv_result = newSViv (req->result);
576 SvREADONLY_on (sv_result);
577 }
578
368 switch (req->type) 579 switch (req->type)
369 { 580 {
581 case EIO_WD_OPEN:
582 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
583 break;
584
370 case REQ_READDIR: 585 case EIO_READDIR:
371 { 586 {
372 SV *rv = &PL_sv_undef; 587 SV *rv = &PL_sv_undef;
373 588
374 if (req->result >= 0) 589 if (req->result >= 0)
375 { 590 {
376 int i; 591 int i;
377 char *buf = req->data2ptr; 592 char *names = (char *)req->ptr2;
593 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
378 AV *av = newAV (); 594 AV *av = newAV ();
379 595
380 av_extend (av, req->result - 1); 596 av_extend (av, req->result - 1);
381 597
382 for (i = 0; i < req->result; ++i) 598 for (i = 0; i < req->result; ++i)
383 { 599 {
384 SV *sv = newSVpv (buf, 0); 600 if (req->int1 & EIO_READDIR_DENTS)
601 {
602 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
385 603
604 if (req->int1 & EIO_READDIR_CUSTOM2)
605 {
606 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
607 AV *avent = newAV ();
608
609 av_extend (avent, 2);
610
611 if (!sv_type [ent->type])
612 {
613 sv_type [ent->type] = newSViv (ent->type);
614 SvREADONLY_on (sv_type [ent->type]);
615 }
616
617 av_store (avent, 0, namesv);
618 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
619 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
620
621 av_store (av, i, newRV_noinc ((SV *)avent));
622 }
623 else
386 av_store (av, i, sv); 624 av_store (av, i, namesv);
625
626 ++ent;
627 }
628 else
629 {
630 SV *name = newSVpv (names, 0);
631 av_store (av, i, name);
387 buf += SvCUR (sv) + 1; 632 names += SvCUR (name) + 1;
633 }
388 } 634 }
389 635
390 rv = sv_2mortal (newRV_noinc ((SV *)av)); 636 rv = sv_2mortal (newRV_noinc ((SV *)av));
391 } 637 }
392 638
393 PUSHs (rv); 639 PUSHs (rv);
640
641 if (req->int1 & EIO_READDIR_CUSTOM1)
642 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
394 } 643 }
395 break; 644 break;
396 645
397 case REQ_OPEN: 646 case EIO_OPEN:
647 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
648 break;
649
650 case EIO_STATVFS:
651 case EIO_FSTATVFS:
398 { 652 {
399 /* convert fd to fh */ 653 SV *rv = &PL_sv_undef;
400 SV *fh; 654
655#ifndef _WIN32
656 if (req->result >= 0)
657 {
658 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
659 HV *hv = newHV ();
660 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
661 * chooses to make it a struct.
662 */
663 unsigned long fsid = 0;
664 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
401 665
402 PUSHs (sv_2mortal (newSViv (req->result))); 666 rv = sv_2mortal (newRV_noinc ((SV *)hv));
403 PUTBACK;
404 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
405 SPAGAIN;
406 667
407 fh = SvREFCNT_inc (POPs); 668 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
669 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
670 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
671 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
672 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
673 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
674 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
675 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
676 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
677 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
678 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
679 }
680#endif
408 681
409 PUSHMARK (SP); 682 PUSHs (rv);
410 XPUSHs (sv_2mortal (fh));
411 } 683 }
684
412 break; 685 break;
413 686
414 case REQ_GROUP: 687 case EIO_GROUP:
415 req->fd = 2; /* mark group as finished */ 688 req->int1 = 2; /* mark group as finished */
416 689
417 if (req->data) 690 if (req->sv1)
418 { 691 {
419 int i; 692 int i;
420 AV *av = (AV *)req->data; 693 AV *av = (AV *)req->sv1;
421 694
422 EXTEND (SP, AvFILL (av) + 1); 695 EXTEND (SP, AvFILL (av) + 1);
423 for (i = 0; i <= AvFILL (av); ++i) 696 for (i = 0; i <= AvFILL (av); ++i)
424 PUSHs (*av_fetch (av, i, 0)); 697 PUSHs (*av_fetch (av, i, 0));
425 } 698 }
426 break; 699 break;
427 700
428 case REQ_NOP: 701 case EIO_NOP:
429 case REQ_BUSY: 702 case EIO_BUSY:
430 break; 703 break;
431 704
705 case EIO_READLINK:
706 case EIO_REALPATH:
707 if (req->result > 0)
708 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
709 break;
710
711 case EIO_STAT:
712 case EIO_LSTAT:
713 case EIO_FSTAT:
714 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
715
716 if (!(PL_laststatval = req->result))
717 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
718 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
719
720 PUSHs (sv_result);
721 break;
722
723 case EIO_SEEK:
724 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
725 break;
726
727 case EIO_READ:
728 {
729 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
730 *SvEND (req->sv2) = 0;
731 SvPOK_only (req->sv2);
732 SvSETMAGIC (req->sv2);
733 PUSHs (sv_result);
734 }
735 break;
736
737 case EIO_SLURP:
738 {
739 if (req->result >= 0)
740 {
741 /* if length was originally not known, we steal the malloc'ed memory */
742 if (req->flags & EIO_FLAG_PTR2_FREE)
743 {
744 req->flags &= ~EIO_FLAG_PTR2_FREE;
745 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
746 }
747 else
748 {
749 SvCUR_set (req->sv2, req->result);
750 *SvEND (req->sv2) = 0;
751 SvPOK_only (req->sv2);
752 }
753
754 SvSETMAGIC (req->sv2);
755 }
756
757 PUSHs (sv_result);
758 }
759 break;
760
761 case EIO_CUSTOM:
762 if (req->feed == fiemap)
763 {
764#if HAVE_FIEMAP
765 if (!req->result)
766 {
767 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
768
769 if (fiemap->fm_extent_count)
770 {
771 AV *av = newAV ();
772 int i;
773
774 while (fiemap->fm_mapped_extents)
775 {
776 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
777 AV *ext_av = newAV ();
778
779 av_store (ext_av, 3, newSVuv (extent->fe_flags));
780 av_store (ext_av, 2, newSVval64 (extent->fe_length));
781 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
782 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
783
784 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
785 }
786
787 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
788 }
789 else
790 {
791 SvIV_set (sv_result, fiemap->fm_mapped_extents);
792 PUSHs (sv_result);
793 }
794 }
795#endif
796 }
797 else
798 PUSHs (sv_result);
799 break;
800
801 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
802 if (req->result > 0)
803 SvIV_set (sv_result, 0);
804 /* FALLTHROUGH */
805
432 default: 806 default:
433 PUSHs (sv_2mortal (newSViv (req->result))); 807 PUSHs (sv_result);
434 break; 808 break;
435 } 809 }
436 810
437 errno = req->errorno; 811 errno = req->errorno;
438 812
439 PUTBACK; 813 PUTBACK;
440 call_sv (req->callback, G_VOID | G_EVAL); 814 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
441 SPAGAIN; 815 SPAGAIN;
816
817 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
818 SvREFCNT_dec (sv_result);
819 else
820 sv_result_cache = sv_result;
442 821
443 FREETMPS; 822 FREETMPS;
444 LEAVE; 823 LEAVE;
824
825 PUTBACK;
445 } 826 }
446 827
447 if (req->grp) 828 return !!SvTRUE (ERRSV);
448 {
449 aio_req grp = req->grp;
450
451 /* unlink request */
452 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
453 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
454
455 if (grp->grp_first == req)
456 grp->grp_first = req->grp_next;
457
458 aio_grp_dec (grp);
459 }
460
461 if (SvTRUE (ERRSV))
462 {
463 req_free (req);
464 croak (0);
465 }
466} 829}
467 830
468static void req_free (aio_req req) 831static void
832req_destroy (aio_req req)
469{ 833{
470 if (req->self) 834 if (req->self)
471 { 835 {
472 sv_unmagic (req->self, PERL_MAGIC_ext); 836 sv_unmagic (req->self, PERL_MAGIC_ext);
473 SvREFCNT_dec (req->self); 837 SvREFCNT_dec (req->self);
474 } 838 }
475 839
476 SvREFCNT_dec (req->data);
477 SvREFCNT_dec (req->fh); 840 SvREFCNT_dec (req->sv1);
478 SvREFCNT_dec (req->fh2); 841 SvREFCNT_dec (req->sv2);
842 SvREFCNT_dec (req->sv3);
843 SvREFCNT_dec (req->sv4);
479 SvREFCNT_dec (req->callback); 844 SvREFCNT_dec (req->callback);
480 Safefree (req->statdata);
481 845
482 if (req->type == REQ_READDIR)
483 free (req->data2ptr);
484
485 Safefree (req); 846 free (req);
486} 847}
487 848
849static void
488static void req_cancel_subs (aio_req grp) 850req_cancel_subs (aio_req grp)
489{ 851{
490 aio_req sub;
491
492 if (grp->type != REQ_GROUP) 852 if (grp->type != EIO_GROUP)
493 return; 853 return;
494 854
495 SvREFCNT_dec (grp->fh2); 855 SvREFCNT_dec (grp->sv2);
496 grp->fh2 = 0; 856 grp->sv2 = 0;
497 857
498 for (sub = grp->grp_first; sub; sub = sub->grp_next) 858 eio_grp_cancel (grp);
499 req_cancel (sub);
500} 859}
501 860
502static void req_cancel (aio_req req) 861static void ecb_cold
862create_respipe (void)
503{ 863{
504 req->flags |= FLAG_CANCELLED; 864 if (s_epipe_renew (&respipe))
505 865 croak ("IO::AIO: unable to initialize result pipe");
506 req_cancel_subs (req);
507} 866}
508 867
509static int poll_cb (int max) 868static void
869poll_wait (void)
510{ 870{
511 dSP; 871 while (eio_nreqs ())
512 int count = 0; 872 {
513 int do_croak = 0; 873 int size;
514 aio_req req;
515 874
875 X_LOCK (EIO_POOL->reslock);
876 size = EIO_POOL->res_queue.size;
877 X_UNLOCK (EIO_POOL->reslock);
878
879 if (size)
880 return;
881
882 etp_maybe_start_thread (EIO_POOL);
883
884 s_epipe_wait (&respipe);
885 }
886}
887
888static int
889poll_cb (void)
890{
516 for (;;) 891 for (;;)
517 { 892 {
518 while (max <= 0 || count < max) 893 int res = eio_poll ();
894
895 if (res > 0)
896 croak (0);
897
898 if (!max_outstanding || max_outstanding > eio_nreqs ())
899 return res;
900
901 poll_wait ();
902 }
903}
904
905static void ecb_cold
906reinit (void)
907{
908 create_respipe ();
909
910 if (eio_init (want_poll, done_poll) < 0)
911 croak ("IO::AIO: unable to initialise eio library");
912}
913
914/*****************************************************************************/
915
916static SV *
917get_cb (SV *cb_sv)
918{
919 SvGETMAGIC (cb_sv);
920 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
921}
922
923static aio_req ecb_noinline
924dreq (SV *callback)
925{
926 SV *cb_cv;
927 aio_req req;
928 int req_pri = next_pri;
929 next_pri = EIO_PRI_DEFAULT;
930
931 cb_cv = get_cb (callback);
932
933 req = calloc (sizeof (*req), 1);
934 if (!req)
935 croak ("out of memory during eio_req allocation");
936
937 req->callback = SvREFCNT_inc (cb_cv);
938 req->pri = req_pri;
939
940 return req;
941}
942
943#define dREQ \
944 aio_req req = dreq (callback); \
945
946#define REQ_SEND \
947 PUTBACK; \
948 req_submit (req); \
949 SPAGAIN; \
950 \
951 if (GIMME_V != G_VOID) \
952 XPUSHs (req_sv (req, aio_req_stash));
953
954ecb_inline void
955req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
956{
957 if (expect_false (SvROK (path)))
958 {
959 SV *rv = SvRV (path);
960 SV *wdob;
961
962 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
519 { 963 {
520 LOCK (reslock); 964 path = AvARRAY (rv)[1];
521 req = reqq_shift (&res_queue); 965 wdob = AvARRAY (rv)[0];
522 966
523 if (req) 967 if (SvOK (wdob))
524 { 968 {
525 --npending; 969 *wd = SvAIO_WD (wdob);
526 970 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
527 if (!res_queue.size)
528 {
529 /* read any signals sent by the worker threads */
530 char buf [32];
531 while (read (respipe [0], buf, 32) == 32)
532 ;
533 }
534 }
535
536 UNLOCK (reslock);
537
538 if (!req)
539 break;
540
541 --nreqs;
542
543 if (req->type == REQ_QUIT)
544 --started;
545 else if (req->type == REQ_GROUP && req->length)
546 {
547 req->fd = 1; /* mark request as delayed */
548 continue;
549 } 971 }
550 else 972 else
551 { 973 *wd = EIO_INVALID_WD;
552 if (req->type == REQ_READ)
553 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
554
555 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
556 SvREADONLY_off (req->data);
557
558 if (req->statdata)
559 {
560 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
561 PL_laststatval = req->result;
562 PL_statcache = *(req->statdata);
563 }
564
565 req_invoke (req);
566
567 count++;
568 }
569
570 req_free (req);
571 } 974 }
975 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
976 {
977 *wd = (aio_wd)(long)SvIVX (rv);
978 *wdsv = SvREFCNT_inc_NN (rv);
979 *ptr = ".";
980 return; /* path set to "." */
981 }
982 else
983 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
984 }
572 985
573 if (nreqs <= max_outstanding) 986 *pathsv = newSVsv (path);
987 *ptr = SvPVbyte_nolen (*pathsv);
988}
989
990static void ecb_noinline
991req_set_path1 (aio_req req, SV *path)
992{
993 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
994}
995
996static void ecb_noinline
997req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
998{
999 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1000
1001 switch (SvTYPE (rv))
1002 {
1003 case SVt_PVIO:
1004 case SVt_PVLV:
1005 case SVt_PVGV:
1006 req->type = type_fh;
1007 req->sv1 = newSVsv (fh_or_path);
1008 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
574 break; 1009 break;
575 1010
576 poll_wait (); 1011 default:
577 1012 req->type = type_path;
578 max = 0; 1013 req_set_path1 (req, fh_or_path);
1014 break;
579 } 1015 }
580
581 return count;
582}
583
584static void *aio_proc(void *arg);
585
586static void start_thread (void)
587{
588 sigset_t fullsigset, oldsigset;
589 pthread_attr_t attr;
590
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 pthread_attr_init (&attr);
597 pthread_attr_setstacksize (&attr, STACKSIZE);
598 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
599
600 sigfillset (&fullsigset);
601
602 LOCK (wrklock);
603 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
604
605 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
606 {
607 wrk->prev = &wrk_first;
608 wrk->next = wrk_first.next;
609 wrk_first.next->prev = wrk;
610 wrk_first.next = wrk;
611 ++started;
612 }
613 else
614 free (wrk);
615
616 sigprocmask (SIG_SETMASK, &oldsigset, 0);
617 UNLOCK (wrklock);
618}
619
620static void req_send (aio_req req)
621{
622 while (started < wanted && nreqs >= started)
623 start_thread ();
624
625 ++nreqs;
626
627 LOCK (reqlock);
628 ++nready;
629 reqq_push (&req_queue, req);
630 pthread_cond_signal (&reqwait);
631 UNLOCK (reqlock);
632}
633
634static void end_thread (void)
635{
636 aio_req req;
637
638 Newz (0, req, 1, aio_cb);
639
640 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS;
642
643 req_send (req);
644}
645
646static void min_parallel (int nthreads)
647{
648 if (wanted < nthreads)
649 wanted = nthreads;
650}
651
652static void max_parallel (int nthreads)
653{
654 int cur = started;
655
656 if (wanted > nthreads)
657 wanted = nthreads;
658
659 while (cur > wanted)
660 {
661 end_thread ();
662 cur--;
663 }
664
665 while (started > wanted)
666 {
667 poll_wait ();
668 poll_cb (0);
669 }
670}
671
672static void create_pipe ()
673{
674 if (pipe (respipe))
675 croak ("unable to initialize result pipe");
676
677 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
678 croak ("cannot set result pipe to nonblocking mode");
679
680 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
681 croak ("cannot set result pipe to nonblocking mode");
682} 1016}
683 1017
684/*****************************************************************************/ 1018/*****************************************************************************/
685/* work around various missing functions */
686 1019
687#if !HAVE_PREADWRITE 1020static void
688# define pread aio_pread 1021ts_set (struct timespec *ts, NV value)
689# define pwrite aio_pwrite
690
691/*
692 * make our pread/pwrite safe against themselves, but not against
693 * normal read/write by using a mutex. slows down execution a lot,
694 * but that's your problem, not mine.
695 */
696static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
697
698static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
699{ 1022{
700 ssize_t res; 1023 ts->tv_sec = value;
701 off_t ooffset; 1024 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
702
703 LOCK (preadwritelock);
704 ooffset = lseek (fd, 0, SEEK_CUR);
705 lseek (fd, offset, SEEK_SET);
706 res = read (fd, buf, count);
707 lseek (fd, ooffset, SEEK_SET);
708 UNLOCK (preadwritelock);
709
710 return res;
711} 1025}
712 1026
713static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1027static NV
1028ts_get (const struct timespec *ts)
714{ 1029{
715 ssize_t res; 1030 return ts->tv_sec + ts->tv_nsec * 1e-9;
716 off_t ooffset;
717
718 LOCK (preadwritelock);
719 ooffset = lseek (fd, 0, SEEK_CUR);
720 lseek (fd, offset, SEEK_SET);
721 res = write (fd, buf, count);
722 lseek (fd, offset, SEEK_SET);
723 UNLOCK (preadwritelock);
724
725 return res;
726}
727#endif
728
729#if !HAVE_FDATASYNC
730# define fdatasync fsync
731#endif
732
733#if !HAVE_READAHEAD
734# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
735
736static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
737{
738 dBUF;
739
740 while (count > 0)
741 {
742 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
743
744 pread (fd, aio_buf, len, offset);
745 offset += len;
746 count -= len;
747 }
748
749 errno = 0;
750}
751
752#endif
753
754#if !HAVE_READDIR_R
755# define readdir_r aio_readdir_r
756
757static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
758
759static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
760{
761 struct dirent *e;
762 int errorno;
763
764 LOCK (readdirlock);
765
766 e = readdir (dirp);
767 errorno = errno;
768
769 if (e)
770 {
771 *res = ent;
772 strcpy (ent->d_name, e->d_name);
773 }
774 else
775 *res = 0;
776
777 UNLOCK (readdirlock);
778
779 errno = errorno;
780 return e ? 0 : -1;
781}
782#endif
783
784/* sendfile always needs emulation */
785static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
786{
787 ssize_t res;
788
789 if (!count)
790 return 0;
791
792#if HAVE_SENDFILE
793# if __linux
794 res = sendfile (ofd, ifd, &offset, count);
795
796# elif __freebsd
797 /*
798 * Of course, the freebsd sendfile is a dire hack with no thoughts
799 * wasted on making it similar to other I/O functions.
800 */
801 {
802 off_t sbytes;
803 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
804
805 if (res < 0 && sbytes)
806 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
807 res = sbytes;
808 }
809
810# elif __hpux
811 res = sendfile (ofd, ifd, offset, count, 0, 0);
812
813# elif __solaris
814 {
815 struct sendfilevec vec;
816 size_t sbytes;
817
818 vec.sfv_fd = ifd;
819 vec.sfv_flag = 0;
820 vec.sfv_off = offset;
821 vec.sfv_len = count;
822
823 res = sendfilev (ofd, &vec, 1, &sbytes);
824
825 if (res < 0 && sbytes)
826 res = sbytes;
827 }
828
829# endif
830#else
831 res = -1;
832 errno = ENOSYS;
833#endif
834
835 if (res < 0
836 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
837#if __solaris
838 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
839#endif
840 )
841 )
842 {
843 /* emulate sendfile. this is a major pain in the ass */
844 dBUF;
845
846 res = 0;
847
848 while (count)
849 {
850 ssize_t cnt;
851
852 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
853
854 if (cnt <= 0)
855 {
856 if (cnt && !res) res = -1;
857 break;
858 }
859
860 cnt = write (ofd, aio_buf, cnt);
861
862 if (cnt <= 0)
863 {
864 if (cnt && !res) res = -1;
865 break;
866 }
867
868 offset += cnt;
869 res += cnt;
870 count -= cnt;
871 }
872 }
873
874 return res;
875}
876
877/* read a full directory */
878static void scandir_ (aio_req req, worker *self)
879{
880 DIR *dirp;
881 union
882 {
883 struct dirent d;
884 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
885 } *u;
886 struct dirent *entp;
887 char *name, *names;
888 int memlen = 4096;
889 int memofs = 0;
890 int res = 0;
891 int errorno;
892
893 LOCK (wrklock);
894 self->dirp = dirp = opendir (req->dataptr);
895 self->dbuf = u = malloc (sizeof (*u));
896 req->data2ptr = names = malloc (memlen);
897 UNLOCK (wrklock);
898
899 if (dirp && u && names)
900 for (;;)
901 {
902 errno = 0;
903 readdir_r (dirp, &u->d, &entp);
904
905 if (!entp)
906 break;
907
908 name = entp->d_name;
909
910 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
911 {
912 int len = strlen (name) + 1;
913
914 res++;
915
916 while (memofs + len > memlen)
917 {
918 memlen *= 2;
919 LOCK (wrklock);
920 req->data2ptr = names = realloc (names, memlen);
921 UNLOCK (wrklock);
922
923 if (!names)
924 break;
925 }
926
927 memcpy (names + memofs, name, len);
928 memofs += len;
929 }
930 }
931
932 if (errno)
933 res = -1;
934
935 req->result = res;
936} 1031}
937 1032
938/*****************************************************************************/ 1033/*****************************************************************************/
939 1034
940static void *aio_proc (void *thr_arg) 1035XS(boot_IO__AIO) ecb_cold;
941{
942 aio_req req;
943 int type;
944 worker *self = (worker *)thr_arg;
945 1036
946 do
947 {
948 LOCK (reqlock);
949
950 for (;;)
951 {
952 self->req = req = reqq_shift (&req_queue);
953
954 if (req)
955 break;
956
957 pthread_cond_wait (&reqwait, &reqlock);
958 }
959
960 --nready;
961
962 UNLOCK (reqlock);
963
964 errno = 0; /* strictly unnecessary */
965 type = req->type; /* remember type for QUIT check */
966
967 if (!(req->flags & FLAG_CANCELLED))
968 switch (type)
969 {
970 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
971 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
972
973 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
974 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
975
976 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
977 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
978 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
979
980 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
981 case REQ_CLOSE: req->result = close (req->fd); break;
982 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
983 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
984 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
985 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
986 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
987
988 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
989 case REQ_FSYNC: req->result = fsync (req->fd); break;
990 case REQ_READDIR: scandir_ (req, self); break;
991
992 case REQ_BUSY:
993 {
994 struct timeval tv;
995
996 tv.tv_sec = req->fd;
997 tv.tv_usec = req->fd2;
998
999 req->result = select (0, 0, 0, 0, &tv);
1000 }
1001
1002 case REQ_GROUP:
1003 case REQ_NOP:
1004 case REQ_QUIT:
1005 break;
1006
1007 default:
1008 req->result = ENOSYS;
1009 break;
1010 }
1011
1012 req->errorno = errno;
1013
1014 LOCK (reslock);
1015
1016 ++npending;
1017
1018 if (!reqq_push (&res_queue, req))
1019 /* write a dummy byte to the pipe so fh becomes ready */
1020 write (respipe [1], &respipe, 1);
1021
1022 self->req = 0;
1023 worker_clear (self);
1024
1025 UNLOCK (reslock);
1026 }
1027 while (type != REQ_QUIT);
1028
1029 LOCK (wrklock);
1030 worker_free (self);
1031 UNLOCK (wrklock);
1032
1033 return 0;
1034}
1035
1036/*****************************************************************************/
1037
1038static void atfork_prepare (void)
1039{
1040 LOCK (wrklock);
1041 LOCK (reqlock);
1042 LOCK (reslock);
1043#if !HAVE_PREADWRITE
1044 LOCK (preadwritelock);
1045#endif
1046#if !HAVE_READDIR_R
1047 LOCK (readdirlock);
1048#endif
1049}
1050
1051static void atfork_parent (void)
1052{
1053#if !HAVE_READDIR_R
1054 UNLOCK (readdirlock);
1055#endif
1056#if !HAVE_PREADWRITE
1057 UNLOCK (preadwritelock);
1058#endif
1059 UNLOCK (reslock);
1060 UNLOCK (reqlock);
1061 UNLOCK (wrklock);
1062}
1063
1064static void atfork_child (void)
1065{
1066 aio_req prv;
1067
1068 while (prv = reqq_shift (&req_queue))
1069 req_free (prv);
1070
1071 while (prv = reqq_shift (&res_queue))
1072 req_free (prv);
1073
1074 while (wrk_first.next != &wrk_first)
1075 {
1076 worker *wrk = wrk_first.next;
1077
1078 if (wrk->req)
1079 req_free (wrk->req);
1080
1081 worker_clear (wrk);
1082 worker_free (wrk);
1083 }
1084
1085 started = 0;
1086 nreqs = 0;
1087
1088 close (respipe [0]);
1089 close (respipe [1]);
1090 create_pipe ();
1091
1092 atfork_parent ();
1093}
1094
1095#define dREQ \
1096 aio_req req; \
1097 int req_pri = next_pri; \
1098 next_pri = DEFAULT_PRI + PRI_BIAS; \
1099 \
1100 if (SvOK (callback) && !SvROK (callback)) \
1101 croak ("callback must be undef or of reference type"); \
1102 \
1103 Newz (0, req, 1, aio_cb); \
1104 if (!req) \
1105 croak ("out of memory during aio_req allocation"); \
1106 \
1107 req->callback = newSVsv (callback); \
1108 req->pri = req_pri
1109
1110#define REQ_SEND \
1111 req_send (req); \
1112 \
1113 if (GIMME_V != G_VOID) \
1114 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1115
1116MODULE = IO::AIO PACKAGE = IO::AIO 1037MODULE = IO::AIO PACKAGE = IO::AIO
1117 1038
1118PROTOTYPES: ENABLE 1039PROTOTYPES: ENABLE
1119 1040
1120BOOT: 1041BOOT:
1121{ 1042{
1043 static const struct {
1044 const char *name;
1045 IV iv;
1046 } *civ, const_iv[] = {
1047# define const_niv(name, value) { # name, (IV) value },
1048# define const_iv(name) { # name, (IV) name },
1049# define const_eio(name) { # name, (IV) EIO_ ## name },
1050
1051 /* you have to re-run ./gendef0 after adding/removing any constants here */
1052 /* the first block can be undef if missing */
1053 const_iv (ENOSYS)
1054 const_iv (EXDEV)
1055 const_iv (EBADR)
1056
1057 /* for lseek */
1058 const_iv (SEEK_DATA)
1059 const_iv (SEEK_HOLE)
1060
1061 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1062 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1063 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1064 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1065 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1066 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1067
1068 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1069 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1070 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1071 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1072 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1073
1074 /* the second block will be 0 when missing */
1075 const_iv (O_ACCMODE)
1076
1077 const_iv (O_RDONLY)
1078 const_iv (O_WRONLY)
1079 const_iv (O_RDWR)
1080 const_iv (O_CREAT)
1081 const_iv (O_TRUNC)
1082 const_iv (O_EXCL)
1083 const_iv (O_APPEND)
1084
1085 const_iv (O_ASYNC)
1086 const_iv (O_DIRECT)
1087 const_iv (O_NOATIME)
1088
1089 const_iv (O_CLOEXEC)
1090 const_iv (O_NOCTTY)
1091 const_iv (O_NOFOLLOW)
1092 const_iv (O_NONBLOCK)
1093 const_iv (O_EXEC)
1094 const_iv (O_SEARCH)
1095 const_iv (O_DIRECTORY)
1096 const_iv (O_DSYNC)
1097 const_iv (O_RSYNC)
1098 const_iv (O_SYNC)
1099 const_iv (O_PATH)
1100 const_iv (O_TMPFILE)
1101 const_iv (O_TTY_INIT)
1102
1103 const_iv (S_IFIFO)
1104 const_iv (S_IFCHR)
1105 const_iv (S_IFBLK)
1106 const_iv (S_IFLNK)
1107 const_iv (S_IFREG)
1108 const_iv (S_IFDIR)
1109 const_iv (S_IFWHT)
1110 const_iv (S_IFSOCK)
1111 const_iv (S_IFMT)
1112
1113 const_iv (ST_RDONLY)
1114 const_iv (ST_NOSUID)
1115 const_iv (ST_NODEV)
1116 const_iv (ST_NOEXEC)
1117 const_iv (ST_SYNCHRONOUS)
1118 const_iv (ST_MANDLOCK)
1119 const_iv (ST_WRITE)
1120 const_iv (ST_APPEND)
1121 const_iv (ST_IMMUTABLE)
1122 const_iv (ST_NOATIME)
1123 const_iv (ST_NODIRATIME)
1124 const_iv (ST_RELATIME)
1125
1126 const_iv (PROT_NONE)
1127 const_iv (PROT_EXEC)
1128 const_iv (PROT_READ)
1129 const_iv (PROT_WRITE)
1130
1131 const_iv (MAP_PRIVATE)
1132 const_iv (MAP_SHARED)
1133 const_iv (MAP_FIXED)
1134 const_iv (MAP_ANONYMOUS)
1135
1136 /* linuxish */
1137 const_iv (MAP_LOCKED)
1138 const_iv (MAP_NORESERVE)
1139 const_iv (MAP_POPULATE)
1140 const_iv (MAP_NONBLOCK)
1141 const_iv (MAP_GROWSDOWN)
1142 const_iv (MAP_32BIT)
1143 const_iv (MAP_HUGETLB)
1144 const_iv (MAP_STACK)
1145
1146 const_iv (MREMAP_MAYMOVE)
1147 const_iv (MREMAP_FIXED)
1148
1149 const_iv (F_DUPFD_CLOEXEC)
1150
1151 const_iv (MSG_CMSG_CLOEXEC)
1152 const_iv (SOCK_CLOEXEC)
1153
1154 const_iv (F_OFD_GETLK)
1155 const_iv (F_OFD_SETLK)
1156 const_iv (F_OFD_GETLKW)
1157
1158 const_iv (FIFREEZE)
1159 const_iv (FITHAW)
1160 const_iv (FITRIM)
1161 const_iv (FICLONE)
1162 const_iv (FICLONERANGE)
1163 const_iv (FIDEDUPERANGE)
1164
1165 const_iv (FS_IOC_GETFLAGS)
1166 const_iv (FS_IOC_SETFLAGS)
1167 const_iv (FS_IOC_GETVERSION)
1168 const_iv (FS_IOC_SETVERSION)
1169 const_iv (FS_IOC_FIEMAP)
1170 const_iv (FS_IOC_FSGETXATTR)
1171 const_iv (FS_IOC_FSSETXATTR)
1172 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1173 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1174 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1175
1176 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1177
1178 const_iv (FS_SECRM_FL)
1179 const_iv (FS_UNRM_FL)
1180 const_iv (FS_COMPR_FL)
1181 const_iv (FS_SYNC_FL)
1182 const_iv (FS_IMMUTABLE_FL)
1183 const_iv (FS_APPEND_FL)
1184 const_iv (FS_NODUMP_FL)
1185 const_iv (FS_NOATIME_FL)
1186 const_iv (FS_DIRTY_FL)
1187 const_iv (FS_COMPRBLK_FL)
1188 const_iv (FS_NOCOMP_FL)
1189 const_iv (FS_ENCRYPT_FL)
1190 const_iv (FS_BTREE_FL)
1191 const_iv (FS_INDEX_FL)
1192 const_iv (FS_JOURNAL_DATA_FL)
1193 const_iv (FS_NOTAIL_FL)
1194 const_iv (FS_DIRSYNC_FL)
1195 const_iv (FS_TOPDIR_FL)
1196 const_iv (FS_FL_USER_MODIFIABLE)
1197
1198 const_iv (FS_XFLAG_REALTIME)
1199 const_iv (FS_XFLAG_PREALLOC)
1200 const_iv (FS_XFLAG_IMMUTABLE)
1201 const_iv (FS_XFLAG_APPEND)
1202 const_iv (FS_XFLAG_SYNC)
1203 const_iv (FS_XFLAG_NOATIME)
1204 const_iv (FS_XFLAG_NODUMP)
1205 const_iv (FS_XFLAG_RTINHERIT)
1206 const_iv (FS_XFLAG_PROJINHERIT)
1207 const_iv (FS_XFLAG_NOSYMLINKS)
1208 const_iv (FS_XFLAG_EXTSIZE)
1209 const_iv (FS_XFLAG_EXTSZINHERIT)
1210 const_iv (FS_XFLAG_NODEFRAG)
1211 const_iv (FS_XFLAG_FILESTREAM)
1212 const_iv (FS_XFLAG_DAX)
1213 const_iv (FS_XFLAG_HASATTR)
1214
1215 const_iv (FIEMAP_FLAG_SYNC)
1216 const_iv (FIEMAP_FLAG_XATTR)
1217 const_iv (FIEMAP_FLAGS_COMPAT)
1218 const_iv (FIEMAP_EXTENT_LAST)
1219 const_iv (FIEMAP_EXTENT_UNKNOWN)
1220 const_iv (FIEMAP_EXTENT_DELALLOC)
1221 const_iv (FIEMAP_EXTENT_ENCODED)
1222 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1223 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1224 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1225 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1226 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1227 const_iv (FIEMAP_EXTENT_MERGED)
1228 const_iv (FIEMAP_EXTENT_SHARED)
1229
1230 const_iv (SPLICE_F_MOVE)
1231 const_iv (SPLICE_F_NONBLOCK)
1232 const_iv (SPLICE_F_MORE)
1233 const_iv (SPLICE_F_GIFT)
1234
1235 const_iv (EFD_CLOEXEC)
1236 const_iv (EFD_NONBLOCK)
1237 const_iv (EFD_SEMAPHORE)
1238
1239 const_iv (CLOCK_REALTIME)
1240 const_iv (CLOCK_MONOTONIC)
1241 const_iv (CLOCK_BOOTTIME)
1242 const_iv (CLOCK_REALTIME_ALARM)
1243 const_iv (CLOCK_BOOTTIME_ALARM)
1244
1245 const_iv (TFD_NONBLOCK)
1246 const_iv (TFD_CLOEXEC)
1247
1248 const_iv (TFD_TIMER_ABSTIME)
1249 const_iv (TFD_TIMER_CANCEL_ON_SET)
1250
1251 /* these are libeio constants, and are independent of gendef0 */
1252 const_eio (SEEK_SET)
1253 const_eio (SEEK_CUR)
1254 const_eio (SEEK_END)
1255
1256 const_eio (MCL_FUTURE)
1257 const_eio (MCL_CURRENT)
1258
1259 const_eio (MS_ASYNC)
1260 const_eio (MS_INVALIDATE)
1261 const_eio (MS_SYNC)
1262
1263 const_eio (MT_MODIFY)
1264
1265 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1266 const_eio (SYNC_FILE_RANGE_WRITE)
1267 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1268
1269 const_eio (FALLOC_FL_KEEP_SIZE)
1270 const_eio (FALLOC_FL_PUNCH_HOLE)
1271 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1272 const_eio (FALLOC_FL_ZERO_RANGE)
1273 const_eio (FALLOC_FL_INSERT_RANGE)
1274 const_eio (FALLOC_FL_UNSHARE_RANGE)
1275
1276 const_eio (RENAME_NOREPLACE)
1277 const_eio (RENAME_EXCHANGE)
1278 const_eio (RENAME_WHITEOUT)
1279
1280 const_eio (READDIR_DENTS)
1281 const_eio (READDIR_DIRS_FIRST)
1282 const_eio (READDIR_STAT_ORDER)
1283 const_eio (READDIR_FOUND_UNKNOWN)
1284
1285 const_eio (DT_UNKNOWN)
1286 const_eio (DT_FIFO)
1287 const_eio (DT_CHR)
1288 const_eio (DT_DIR)
1289 const_eio (DT_BLK)
1290 const_eio (DT_REG)
1291 const_eio (DT_LNK)
1292 const_eio (DT_SOCK)
1293 const_eio (DT_WHT)
1294 };
1295
1122 HV *stash = gv_stashpv ("IO::AIO", 1); 1296 aio_stash = gv_stashpv ("IO::AIO" , 1);
1123 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1297 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1124 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1298 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1125 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1299 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1126 1300
1127 create_pipe (); 1301 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1128 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1302 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1129}
1130 1303
1304 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1305
1306 reinit ();
1307}
1308
1131void 1309void
1132min_parallel (int nthreads) 1310reinit ()
1133 PROTOTYPE: $ 1311 PROTOTYPE:
1134 1312
1135void 1313void
1136max_parallel (int nthreads) 1314max_poll_reqs (unsigned int nreqs)
1137 PROTOTYPE: $
1138
1139int
1140max_outstanding (int maxreqs)
1141 PROTOTYPE: $ 1315 PROTOTYPE: $
1142 CODE: 1316 CODE:
1143 RETVAL = max_outstanding; 1317 eio_set_max_poll_reqs (nreqs);
1318
1319void
1320max_poll_time (double nseconds)
1321 PROTOTYPE: $
1322 CODE:
1323 eio_set_max_poll_time (nseconds);
1324
1325void
1326min_parallel (unsigned int nthreads)
1327 PROTOTYPE: $
1328 CODE:
1329 eio_set_min_parallel (nthreads);
1330
1331void
1332max_parallel (unsigned int nthreads)
1333 PROTOTYPE: $
1334 CODE:
1335 eio_set_max_parallel (nthreads);
1336
1337void
1338max_idle (unsigned int nthreads)
1339 PROTOTYPE: $
1340 CODE:
1341 eio_set_max_idle (nthreads);
1342
1343void
1344idle_timeout (unsigned int seconds)
1345 PROTOTYPE: $
1346 CODE:
1347 eio_set_idle_timeout (seconds);
1348
1349void
1350max_outstanding (unsigned int maxreqs)
1351 PROTOTYPE: $
1352 CODE:
1144 max_outstanding = maxreqs; 1353 max_outstanding = maxreqs;
1145 OUTPUT:
1146 RETVAL
1147 1354
1148void 1355void
1149aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1356aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1150 SV * pathname
1151 int flags
1152 int mode
1153 SV * callback
1154 PROTOTYPE: $$$;$
1155 PPCODE: 1357 PPCODE:
1156{ 1358{
1157 dREQ; 1359 dREQ;
1158 1360
1159 req->type = REQ_OPEN; 1361 req->type = EIO_WD_OPEN;
1160 req->data = newSVsv (pathname); 1362 req_set_path1 (req, pathname);
1161 req->dataptr = SvPVbyte_nolen (req->data);
1162 req->fd = flags;
1163 req->mode = mode;
1164 1363
1165 REQ_SEND; 1364 REQ_SEND;
1166} 1365}
1167 1366
1168void 1367void
1368aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->type = EIO_OPEN;
1374 req_set_path1 (req, pathname);
1375 req->int1 = flags;
1376 req->int2 = mode;
1377
1378 REQ_SEND;
1379}
1380
1381void
1169aio_close (fh,callback=&PL_sv_undef) 1382aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1170 SV * fh
1171 SV * callback
1172 PROTOTYPE: $;$
1173 ALIAS: 1383 ALIAS:
1174 aio_close = REQ_CLOSE
1175 aio_fsync = REQ_FSYNC 1384 aio_fsync = EIO_FSYNC
1176 aio_fdatasync = REQ_FDATASYNC 1385 aio_fdatasync = EIO_FDATASYNC
1386 aio_syncfs = EIO_SYNCFS
1177 PPCODE: 1387 PPCODE:
1178{ 1388{
1389 int fd = s_fileno_croak (fh, 0);
1179 dREQ; 1390 dREQ;
1180 1391
1181 req->type = ix; 1392 req->type = ix;
1182 req->fh = newSVsv (fh); 1393 req->sv1 = newSVsv (fh);
1183 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1394 req->int1 = fd;
1184 1395
1185 REQ_SEND (req); 1396 REQ_SEND;
1186} 1397}
1187 1398
1188void 1399void
1400aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1401 PPCODE:
1402{
1403 int fd = s_fileno_croak (fh, 0);
1404 dREQ;
1405
1406 req->type = EIO_SYNC_FILE_RANGE;
1407 req->sv1 = newSVsv (fh);
1408 req->int1 = fd;
1409 req->offs = offset;
1410 req->size = nbytes;
1411 req->int2 = flags;
1412
1413 REQ_SEND;
1414}
1415
1416void
1417aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1418 PPCODE:
1419{
1420 int fd = s_fileno_croak (fh, 0);
1421 dREQ;
1422
1423 req->type = EIO_FALLOCATE;
1424 req->sv1 = newSVsv (fh);
1425 req->int1 = fd;
1426 req->int2 = mode;
1427 req->offs = offset;
1428 req->size = len;
1429
1430 REQ_SEND;
1431}
1432
1433void
1434aio_close (SV *fh, SV *callback = &PL_sv_undef)
1435 PPCODE:
1436{
1437 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1438 int fd = s_fileno_croak (fh, 0);
1439 dREQ;
1440
1441 if (expect_false (close_fd < 0))
1442 {
1443 int pipefd [2];
1444
1445 if (
1446#ifdef _WIN32
1447 _pipe (pipefd, 1, _O_BINARY) < 0
1448#else
1449 pipe (pipefd) < 0
1450 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1451#endif
1452 || close (pipefd [1]) < 0
1453 )
1454 abort (); /*D*/
1455
1456 close_fd = pipefd [0];
1457 }
1458
1459 req->type = EIO_DUP2;
1460 req->int1 = close_fd;
1461 req->sv2 = newSVsv (fh);
1462 req->int2 = fd;
1463
1464 REQ_SEND;
1465}
1466
1467void
1468aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1469 PPCODE:
1470{
1471 int fd = s_fileno_croak (fh, 0);
1472 dREQ;
1473
1474 req->type = EIO_SEEK;
1475 req->sv1 = newSVsv (fh);
1476 req->int1 = fd;
1477 req->offs = SvVAL64 (offset);
1478 req->int2 = whence;
1479
1480 REQ_SEND;
1481}
1482
1483void
1189aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1484aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1190 SV * fh
1191 UV offset
1192 UV length
1193 SV * data
1194 UV dataoffset
1195 SV * callback
1196 ALIAS: 1485 ALIAS:
1197 aio_read = REQ_READ 1486 aio_read = EIO_READ
1198 aio_write = REQ_WRITE 1487 aio_write = EIO_WRITE
1199 PROTOTYPE: $$$$$;$
1200 PPCODE: 1488 PPCODE:
1201{ 1489{
1202 aio_req req;
1203 STRLEN svlen; 1490 STRLEN svlen;
1491 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1204 char *svptr = SvPVbyte (data, svlen); 1492 char *svptr = SvPVbyte (data, svlen);
1205 1493 UV len = SvUV (length);
1206 SvUPGRADE (data, SVt_PV);
1207 SvPOK_on (data);
1208 1494
1209 if (dataoffset < 0) 1495 if (dataoffset < 0)
1210 dataoffset += svlen; 1496 dataoffset += svlen;
1211 1497
1212 if (dataoffset < 0 || dataoffset > svlen) 1498 if (dataoffset < 0 || dataoffset > svlen)
1213 croak ("data offset outside of string"); 1499 croak ("dataoffset outside of data scalar");
1214 1500
1215 if (ix == REQ_WRITE) 1501 if (ix == EIO_WRITE)
1216 { 1502 {
1217 /* write: check length and adjust. */ 1503 /* write: check length and adjust. */
1218 if (length < 0 || length + dataoffset > svlen) 1504 if (!SvOK (length) || len + dataoffset > svlen)
1219 length = svlen - dataoffset; 1505 len = svlen - dataoffset;
1220 } 1506 }
1221 else 1507 else
1222 { 1508 {
1223 /* read: grow scalar as necessary */ 1509 /* read: check type and grow scalar as necessary */
1510 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1224 svptr = SvGROW (data, length + dataoffset); 1511 svptr = sv_grow (data, len + dataoffset + 1);
1512 else if (SvCUR (data) < len + dataoffset)
1513 croak ("length + dataoffset outside of scalar, and cannot grow");
1225 } 1514 }
1226
1227 if (length < 0)
1228 croak ("length must not be negative");
1229 1515
1230 { 1516 {
1231 dREQ; 1517 dREQ;
1232 1518
1233 req->type = ix; 1519 req->type = ix;
1234 req->fh = newSVsv (fh); 1520 req->sv1 = newSVsv (fh);
1235 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1521 req->int1 = fd;
1236 : IoOFP (sv_2io (fh))); 1522 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237 req->offset = offset; 1523 req->size = len;
1238 req->length = length;
1239 req->data = SvREFCNT_inc (data); 1524 req->sv2 = SvREFCNT_inc (data);
1240 req->dataptr = (char *)svptr + dataoffset; 1525 req->ptr2 = (char *)svptr + dataoffset;
1526 req->stroffset = dataoffset;
1241 1527
1242 if (!SvREADONLY (data)) 1528 if (!SvREADONLY (data))
1243 { 1529 {
1244 SvREADONLY_on (data); 1530 SvREADONLY_on (data);
1245 req->data2ptr = (void *)data; 1531 req->flags |= FLAG_SV2_RO_OFF;
1246 } 1532 }
1247 1533
1248 REQ_SEND; 1534 REQ_SEND;
1249 } 1535 }
1250} 1536}
1251 1537
1252void 1538void
1253aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1539aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1254 SV * out_fh 1540 ALIAS:
1255 SV * in_fh 1541 aio_ioctl = EIO_IOCTL
1256 UV in_offset 1542 aio_fcntl = EIO_FCNTL
1257 UV length
1258 SV * callback
1259 PROTOTYPE: $$$$;$
1260 PPCODE: 1543 PPCODE:
1261{ 1544{
1262 dREQ; 1545 int fd = s_fileno_croak (fh, 0);
1546 char *svptr;
1263 1547
1264 req->type = REQ_SENDFILE; 1548 if (SvPOK (arg) || !SvNIOK (arg))
1265 req->fh = newSVsv (out_fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1267 req->fh2 = newSVsv (in_fh);
1268 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1269 req->offset = in_offset;
1270 req->length = length;
1271
1272 REQ_SEND;
1273}
1274
1275void
1276aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1277 SV * fh
1278 UV offset
1279 IV length
1280 SV * callback
1281 PROTOTYPE: $$$;$
1282 PPCODE:
1283{
1284 dREQ;
1285
1286 req->type = REQ_READAHEAD;
1287 req->fh = newSVsv (fh);
1288 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1289 req->offset = offset;
1290 req->length = length;
1291
1292 REQ_SEND;
1293}
1294
1295void
1296aio_stat (fh_or_path,callback=&PL_sv_undef)
1297 SV * fh_or_path
1298 SV * callback
1299 ALIAS:
1300 aio_stat = REQ_STAT
1301 aio_lstat = REQ_LSTAT
1302 PPCODE:
1303{
1304 dREQ;
1305
1306 New (0, req->statdata, 1, Stat_t);
1307 if (!req->statdata)
1308 { 1549 {
1309 req_free (req); 1550 STRLEN svlen;
1310 croak ("out of memory during aio_req->statdata allocation"); 1551 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1311 } 1552#ifdef IOCPARM_LEN
1553 STRLEN need = IOCPARM_LEN (request);
1554#else
1555 STRLEN need = 256;
1556#endif
1312 1557
1313 if (SvPOK (fh_or_path)) 1558 if (svlen < need)
1314 { 1559 svptr = SvGROW (arg, need);
1315 req->type = ix;
1316 req->data = newSVsv (fh_or_path);
1317 req->dataptr = SvPVbyte_nolen (req->data);
1318 } 1560 }
1319 else 1561 else
1562 svptr = (char *)SvIV (arg);
1563
1320 { 1564 {
1565 dREQ;
1566
1321 req->type = REQ_FSTAT; 1567 req->type = ix;
1322 req->fh = newSVsv (fh_or_path); 1568 req->sv1 = newSVsv (fh);
1323 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1569 req->int1 = fd;
1570 req->int2 = (long)request;
1571 req->sv2 = SvREFCNT_inc (arg);
1572 req->ptr2 = svptr;
1573
1574 REQ_SEND;
1324 } 1575 }
1576}
1577
1578void
1579aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1580 ALIAS:
1581 aio_readlink = EIO_READLINK
1582 aio_realpath = EIO_REALPATH
1583 PPCODE:
1584{
1585 dREQ;
1586
1587 req->type = ix;
1588 req_set_path1 (req, pathname);
1325 1589
1326 REQ_SEND; 1590 REQ_SEND;
1327} 1591}
1328 1592
1329void 1593void
1330aio_unlink (pathname,callback=&PL_sv_undef) 1594aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1331 SV * pathname 1595 PPCODE:
1332 SV * callback 1596{
1597 int ifd = s_fileno_croak (in_fh , 0);
1598 int ofd = s_fileno_croak (out_fh, 1);
1599 dREQ;
1600
1601 req->type = EIO_SENDFILE;
1602 req->sv1 = newSVsv (out_fh);
1603 req->int1 = ofd;
1604 req->sv2 = newSVsv (in_fh);
1605 req->int2 = ifd;
1606 req->offs = in_offset;
1607 req->size = length;
1608
1609 REQ_SEND;
1610}
1611
1612void
1613aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1614 PPCODE:
1615{
1616 int fd = s_fileno_croak (fh, 0);
1617 dREQ;
1618
1619 req->type = EIO_READAHEAD;
1620 req->sv1 = newSVsv (fh);
1621 req->int1 = fd;
1622 req->offs = offset;
1623 req->size = length;
1624
1625 REQ_SEND;
1626}
1627
1628void
1629aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1333 ALIAS: 1630 ALIAS:
1631 aio_stat = EIO_STAT
1632 aio_lstat = EIO_LSTAT
1633 aio_statvfs = EIO_STATVFS
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1639
1640 REQ_SEND;
1641}
1642
1643void
1644st_xtime ()
1645 ALIAS:
1646 st_atime = 1
1647 st_mtime = 2
1648 st_ctime = 4
1649 st_xtime = 7
1650 PPCODE:
1651 EXTEND (SP, 3);
1652 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1653 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1654 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1655
1656void
1657st_xtimensec ()
1658 ALIAS:
1659 st_atimensec = 1
1660 st_mtimensec = 2
1661 st_ctimensec = 4
1662 st_xtimensec = 7
1663 PPCODE:
1664 EXTEND (SP, 3);
1665 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1666 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1667 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1668
1669UV
1670major (UV dev)
1671 ALIAS:
1672 minor = 1
1673 CODE:
1674 RETVAL = ix ? minor (dev) : major (dev);
1675 OUTPUT:
1676 RETVAL
1677
1678UV
1679makedev (UV maj, UV min)
1680 CODE:
1681 RETVAL = makedev (maj, min);
1682 OUTPUT:
1683 RETVAL
1684
1685void
1686aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1687 PPCODE:
1688{
1689 dREQ;
1690
1691 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1692 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1693 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1694
1695 REQ_SEND;
1696}
1697
1698void
1699aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1700 PPCODE:
1701{
1702 dREQ;
1703
1704 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1705 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1706
1707 REQ_SEND;
1708}
1709
1710void
1711aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1712 PPCODE:
1713{
1714 dREQ;
1715
1716 req->int2 = mode;
1717 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1718
1719 REQ_SEND;
1720}
1721
1722void
1723aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1724 PPCODE:
1725{
1726 dREQ;
1727
1728 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1729 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1730 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = EIO_READDIR;
1742 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1743
1744 if (flags & EIO_READDIR_DENTS)
1745 req->int1 |= EIO_READDIR_CUSTOM2;
1746
1747 req_set_path1 (req, pathname);
1748
1749 REQ_SEND;
1750}
1751
1752void
1753aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1754 PPCODE:
1755{
1756 dREQ;
1757
1758 req->type = EIO_MKDIR;
1759 req->int2 = mode;
1760 req_set_path1 (req, pathname);
1761
1762 REQ_SEND;
1763}
1764
1765void
1766aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1767 ALIAS:
1334 aio_unlink = REQ_UNLINK 1768 aio_unlink = EIO_UNLINK
1335 aio_rmdir = REQ_RMDIR 1769 aio_rmdir = EIO_RMDIR
1336 aio_readdir = REQ_READDIR 1770 aio_readdir = EIO_READDIR
1337 PPCODE: 1771 PPCODE:
1338{ 1772{
1339 dREQ; 1773 dREQ;
1340 1774
1341 req->type = ix; 1775 req->type = ix;
1342 req->data = newSVsv (pathname); 1776 req_set_path1 (req, pathname);
1343 req->dataptr = SvPVbyte_nolen (req->data); 1777
1344
1345 REQ_SEND; 1778 REQ_SEND;
1346} 1779}
1347 1780
1348void 1781void
1349aio_link (oldpath,newpath,callback=&PL_sv_undef) 1782aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1350 SV * oldpath
1351 SV * newpath
1352 SV * callback
1353 ALIAS: 1783 ALIAS:
1354 aio_link = REQ_LINK 1784 aio_link = EIO_LINK
1355 aio_symlink = REQ_SYMLINK 1785 aio_symlink = EIO_SYMLINK
1356 aio_rename = REQ_RENAME 1786 aio_rename = EIO_RENAME
1357 PPCODE: 1787 PPCODE:
1358{ 1788{
1789 eio_wd wd2 = 0;
1359 dREQ; 1790 dREQ;
1360 1791
1361 req->type = ix; 1792 req->type = ix;
1362 req->fh = newSVsv (oldpath); 1793 req_set_path1 (req, oldpath);
1363 req->data2ptr = SvPVbyte_nolen (req->fh); 1794 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1364 req->data = newSVsv (newpath); 1795 req->int3 = (long)wd2;
1365 req->dataptr = SvPVbyte_nolen (req->data);
1366 1796
1367 REQ_SEND; 1797 REQ_SEND;
1368} 1798}
1369 1799
1370void 1800void
1371aio_busy (delay,callback=&PL_sv_undef) 1801aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1372 double delay
1373 SV * callback
1374 PPCODE: 1802 PPCODE:
1375{ 1803{
1804 eio_wd wd2 = 0;
1376 dREQ; 1805 dREQ;
1377 1806
1378 req->type = REQ_BUSY; 1807 req->type = EIO_RENAME;
1379 req->fd = delay < 0. ? 0 : delay; 1808 req_set_path1 (req, oldpath);
1380 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1809 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1381 1810 req->int2 = flags;
1811 req->int3 = (long)wd2;
1812
1382 REQ_SEND; 1813 REQ_SEND;
1383} 1814}
1384 1815
1385void 1816void
1386aio_group (callback=&PL_sv_undef) 1817aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1387 SV * callback 1818 PPCODE:
1388 PROTOTYPE: ;$ 1819{
1820 dREQ;
1821
1822 req->type = EIO_MKNOD;
1823 req->int2 = (mode_t)mode;
1824 req->offs = dev;
1825 req_set_path1 (req, pathname);
1826
1827 REQ_SEND;
1828}
1829
1830void
1831aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1832 ALIAS:
1833 aio_mtouch = EIO_MTOUCH
1834 aio_msync = EIO_MSYNC
1389 PPCODE: 1835 PPCODE:
1390{ 1836{
1837 STRLEN svlen;
1838 char *svptr = SvPVbyte (data, svlen);
1839 UV len = SvUV (length);
1840
1841 if (flags < 0)
1842 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1843
1844 if (offset < 0)
1845 offset += svlen;
1846
1847 if (offset < 0 || offset > svlen)
1848 croak ("offset outside of scalar");
1849
1850 if (!SvOK (length) || len + offset > svlen)
1851 len = svlen - offset;
1852
1853 {
1854 dREQ;
1855
1856 req->type = ix;
1857 req->sv2 = SvREFCNT_inc (data);
1858 req->ptr2 = (char *)svptr + offset;
1859 req->size = len;
1860 req->int1 = flags;
1861
1862 REQ_SEND;
1863 }
1864}
1865
1866void
1867aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1868 PPCODE:
1869{
1870 STRLEN svlen;
1871 char *svptr = SvPVbyte (data, svlen);
1872 UV len = SvUV (length);
1873
1874 if (offset < 0)
1875 offset += svlen;
1876
1877 if (offset < 0 || offset > svlen)
1878 croak ("offset outside of scalar");
1879
1880 if (!SvOK (length) || len + offset > svlen)
1881 len = svlen - offset;
1882
1883 {
1884 dREQ;
1885
1886 req->type = EIO_MLOCK;
1887 req->sv2 = SvREFCNT_inc (data);
1888 req->ptr2 = (char *)svptr + offset;
1889 req->size = len;
1890
1891 REQ_SEND;
1892 }
1893}
1894
1895void
1896aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = EIO_MLOCKALL;
1902 req->int1 = flags;
1903
1904 REQ_SEND;
1905}
1906
1907void
1908aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1909 PPCODE:
1910{
1911 int fd = s_fileno_croak (fh, 0);
1391 dREQ; 1912 dREQ;
1392 1913
1393 req->type = REQ_GROUP; 1914 req->type = EIO_CUSTOM;
1394 req_send (req); 1915 req->sv1 = newSVsv (fh);
1916 req->int1 = fd;
1395 1917
1396 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1918 req->feed = fiemap;
1397} 1919#if HAVE_FIEMAP
1920 /* keep our fingers crossed that the next two types are 64 bit */
1921 req->offs = start;
1922 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1923 req->int2 = flags;
1924 req->int3 = SvOK (count) ? SvIV (count) : -1;
1925#endif
1398 1926
1927 REQ_SEND;
1928}
1929
1399void 1930void
1400aio_nop (callback=&PL_sv_undef) 1931aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1401 SV * callback 1932 PPCODE:
1933{
1934 char *svptr = 0;
1935
1936 sv_clear_foreign (data);
1937
1938 if (length) /* known length, directly read into scalar */
1939 {
1940 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1941 svptr = sv_grow (data, length + 1);
1942 else if (SvCUR (data) < length)
1943 croak ("length outside of scalar, and cannot grow");
1944 else
1945 svptr = SvPVbyte_nolen (data);
1946 }
1947
1948 {
1949 dREQ;
1950
1951 req->type = EIO_SLURP;
1952 req_set_path1 (req, pathname);
1953 req->offs = offset;
1954 req->size = length;
1955 req->sv2 = SvREFCNT_inc (data);
1956 req->ptr2 = svptr;
1957
1958 if (!SvREADONLY (data))
1959 {
1960 SvREADONLY_on (data);
1961 req->flags |= FLAG_SV2_RO_OFF;
1962 }
1963
1964 REQ_SEND;
1965 }
1966}
1967
1968void
1969aio_busy (double delay, SV *callback = &PL_sv_undef)
1402 PPCODE: 1970 PPCODE:
1403{ 1971{
1404 dREQ; 1972 dREQ;
1405 1973
1406 req->type = REQ_NOP; 1974 req->type = EIO_BUSY;
1975 req->nv1 = delay < 0. ? 0. : delay;
1407 1976
1408 REQ_SEND; 1977 REQ_SEND;
1409} 1978}
1410 1979
1980void
1981aio_group (SV *callback = &PL_sv_undef)
1982 PPCODE:
1983{
1984 dREQ;
1985
1986 req->type = EIO_GROUP;
1987
1988 PUTBACK;
1989 req_submit (req);
1990 SPAGAIN;
1991
1992 XPUSHs (req_sv (req, aio_grp_stash));
1993}
1994
1995void
1996aio_nop (SV *callback = &PL_sv_undef)
1997 ALIAS:
1998 aio_nop = EIO_NOP
1999 aio_sync = EIO_SYNC
2000 PPCODE:
2001{
2002 dREQ;
2003
2004 req->type = ix;
2005
2006 REQ_SEND;
2007}
2008
1411int 2009int
1412aioreq_pri (int pri = 0) 2010aioreq_pri (int pri = NO_INIT)
1413 PROTOTYPE: ;$
1414 CODE: 2011 CODE:
1415 RETVAL = next_pri - PRI_BIAS; 2012 RETVAL = next_pri;
1416 if (items > 0) 2013 if (items > 0)
1417 { 2014 {
1418 if (pri < PRI_MIN) pri = PRI_MIN; 2015 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1419 if (pri > PRI_MAX) pri = PRI_MAX; 2016 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1420 next_pri = pri + PRI_BIAS; 2017 next_pri = pri;
1421 } 2018 }
1422 OUTPUT: 2019 OUTPUT:
1423 RETVAL 2020 RETVAL
1424 2021
1425void 2022void
1426aioreq_nice (int nice = 0) 2023aioreq_nice (int nice = 0)
1427 CODE: 2024 CODE:
1428 nice = next_pri - nice; 2025 nice = next_pri - nice;
1429 if (nice < PRI_MIN) nice = PRI_MIN; 2026 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1430 if (nice > PRI_MAX) nice = PRI_MAX; 2027 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1431 next_pri = nice + PRI_BIAS; 2028 next_pri = nice;
1432 2029
1433void 2030void
1434flush () 2031flush ()
2032 CODE:
2033 while (eio_nreqs ())
2034 {
2035 poll_wait ();
2036 poll_cb ();
2037 }
2038
2039int
2040poll ()
2041 CODE:
2042 poll_wait ();
2043 RETVAL = poll_cb ();
2044 OUTPUT:
2045 RETVAL
2046
2047int
2048poll_fileno ()
2049 CODE:
2050 RETVAL = s_epipe_fd (&respipe);
2051 OUTPUT:
2052 RETVAL
2053
2054int
2055poll_cb (...)
1435 PROTOTYPE: 2056 PROTOTYPE:
1436 CODE: 2057 CODE:
1437 while (nreqs)
1438 {
1439 poll_wait ();
1440 poll_cb (0); 2058 RETVAL = poll_cb ();
1441 }
1442
1443void
1444poll()
1445 PROTOTYPE:
1446 CODE:
1447 if (nreqs)
1448 {
1449 poll_wait ();
1450 poll_cb (0);
1451 }
1452
1453int
1454poll_fileno()
1455 PROTOTYPE:
1456 CODE:
1457 RETVAL = respipe [0];
1458 OUTPUT: 2059 OUTPUT:
1459 RETVAL 2060 RETVAL
1460 2061
2062void
2063poll_wait ()
2064 CODE:
2065 poll_wait ();
2066
1461int 2067int
1462poll_cb(...) 2068nreqs ()
1463 PROTOTYPE:
1464 CODE: 2069 CODE:
1465 RETVAL = poll_cb (0); 2070 RETVAL = eio_nreqs ();
1466 OUTPUT: 2071 OUTPUT:
1467 RETVAL 2072 RETVAL
1468 2073
1469int 2074int
1470poll_some(int max = 0) 2075nready ()
1471 PROTOTYPE: $
1472 CODE: 2076 CODE:
1473 RETVAL = poll_cb (max); 2077 RETVAL = eio_nready ();
1474 OUTPUT: 2078 OUTPUT:
1475 RETVAL 2079 RETVAL
1476 2080
1477void 2081int
1478poll_wait() 2082npending ()
1479 PROTOTYPE:
1480 CODE: 2083 CODE:
1481 if (nreqs) 2084 RETVAL = eio_npending ();
1482 poll_wait ();
1483
1484int
1485nreqs()
1486 PROTOTYPE:
1487 CODE:
1488 RETVAL = nreqs;
1489 OUTPUT: 2085 OUTPUT:
1490 RETVAL 2086 RETVAL
1491 2087
1492int 2088int
1493nready() 2089nthreads ()
1494 PROTOTYPE:
1495 CODE: 2090 CODE:
1496 if (WORDREAD_UNSAFE) LOCK (reqlock);
1497 RETVAL = nready; 2091 RETVAL = eio_nthreads ();
1498 if (WORDREAD_UNSAFE) UNLOCK (reqlock);
1499 OUTPUT: 2092 OUTPUT:
1500 RETVAL 2093 RETVAL
1501 2094
1502int 2095int
1503npending() 2096fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1504 PROTOTYPE: 2097 CODE:
2098 RETVAL = posix_fadvise (fh, offset, length, advice);
2099 OUTPUT:
2100 RETVAL
2101
2102IV
2103sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2104 CODE:
2105 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2106 OUTPUT:
2107 RETVAL
2108
2109void
2110mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2111 PPCODE:
2112 sv_clear_foreign (scalar);
2113{
2114 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2115 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2116 if (addr == (void *)-1)
2117 XSRETURN_NO;
2118
2119 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2120
2121 if (!(prot & PROT_WRITE))
2122 SvREADONLY_on (scalar);
2123
2124 XSRETURN_YES;
2125}
2126
2127void
2128munmap (SV *scalar)
1505 CODE: 2129 CODE:
1506 if (WORDREAD_UNSAFE) LOCK (reslock); 2130 sv_clear_foreign (scalar);
1507 RETVAL = npending; 2131
1508 if (WORDREAD_UNSAFE) UNLOCK (reslock); 2132SV *
2133mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2134 CODE:
2135{
2136 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2137 void *new;
2138
2139 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2140 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2141
2142 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2143
2144 RETVAL = &PL_sv_no;
2145
2146 if (new != (void *)-1)
2147 {
2148 RETVAL = new == (void *)mg->mg_ptr
2149 ? newSVpvn ("0 but true", 10)
2150 : &PL_sv_yes;
2151
2152 mg->mg_ptr = (char *)new;
2153 mg->mg_obj = (SV *)new_length;
2154
2155 SvPVX (scalar) = mg->mg_ptr;
2156 SvCUR_set (scalar, new_length);
2157 }
2158}
1509 OUTPUT: 2159 OUTPUT:
1510 RETVAL 2160 RETVAL
2161
2162int
2163madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2164 ALIAS:
2165 mprotect = 1
2166 CODE:
2167{
2168 STRLEN svlen;
2169 void *addr = SvPVbyte (scalar, svlen);
2170 STRLEN len = SvUV (length);
2171
2172 if (offset < 0)
2173 offset += svlen;
2174
2175 if (offset < 0 || offset > svlen)
2176 croak ("offset outside of scalar");
2177
2178 if (!SvOK (length) || len + offset > svlen)
2179 len = svlen - offset;
2180
2181 addr = (void *)(((intptr_t)addr) + offset);
2182 eio_page_align (&addr, &len);
2183
2184 switch (ix)
2185 {
2186 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2187 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2188 }
2189}
2190 OUTPUT:
2191 RETVAL
2192
2193int
2194munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2195 CODE:
2196{
2197 STRLEN svlen;
2198 void *addr = SvPVbyte (scalar, svlen);
2199 size_t len = SvUV (length);
2200
2201 if (offset < 0)
2202 offset += svlen;
2203
2204 if (offset < 0 || offset > svlen)
2205 croak ("offset outside of scalar");
2206
2207 if (!SvOK (length) || len + offset > svlen)
2208 len = svlen - offset;
2209
2210 addr = (void *)(((intptr_t)addr) + offset);
2211 eio_page_align (&addr, &len);
2212#if _POSIX_MEMLOCK_RANGE
2213 RETVAL = munlock (addr, len);
2214#else
2215 RETVAL = EIO_ENOSYS ();
2216#endif
2217}
2218 OUTPUT:
2219 RETVAL
2220
2221int
2222munlockall ()
2223 CODE:
2224#if _POSIX_MEMLOCK
2225 munlockall ();
2226#else
2227 RETVAL = EIO_ENOSYS ();
2228#endif
2229 OUTPUT:
2230 RETVAL
2231
2232int
2233splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2234 CODE:
2235{
2236#if HAVE_LINUX_SPLICE
2237 loff_t off_in_, off_out_;
2238 RETVAL = splice (
2239 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2240 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2241 length, flags
2242 );
2243#else
2244 RETVAL = EIO_ENOSYS ();
2245#endif
2246}
2247 OUTPUT:
2248 RETVAL
2249
2250int
2251tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2252 CODE:
2253#if HAVE_LINUX_SPLICE
2254 RETVAL = tee (rfh, wfh, length, flags);
2255#else
2256 RETVAL = EIO_ENOSYS ();
2257#endif
2258 OUTPUT:
2259 RETVAL
2260
2261int
2262pipesize (aio_rfd rfh, int new_size = -1)
2263 PROTOTYPE: $;$
2264 CODE:
2265#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2266 if (new_size >= 0)
2267 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2268 else
2269 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2270#else
2271 errno = ENOSYS;
2272 RETVAL = -1;
2273#endif
2274 OUTPUT:
2275 RETVAL
2276
2277void
2278pipe2 (int flags = 0)
2279 PROTOTYPE: ;$
2280 PPCODE:
2281{
2282 int fd[2];
2283 int res;
2284
2285 if (flags)
2286#if HAVE_PIPE2
2287 res = pipe2 (fd, flags);
2288#else
2289 res = (errno = ENOSYS, -1);
2290#endif
2291 else
2292 res = pipe (fd);
2293
2294 if (!res)
2295 {
2296 EXTEND (SP, 2);
2297 PUSHs (newmortalFH (fd[0], O_RDONLY));
2298 PUSHs (newmortalFH (fd[1], O_WRONLY));
2299 }
2300}
2301
2302void
2303eventfd (unsigned int initval = 0, int flags = 0)
2304 PPCODE:
2305{
2306 int fd;
2307#if HAVE_EVENTFD
2308 fd = eventfd (initval, flags);
2309#else
2310 fd = (errno = ENOSYS, -1);
2311#endif
2312
2313 XPUSHs (newmortalFH (fd, O_RDWR));
2314}
2315
2316void
2317timerfd_create (int clockid, int flags = 0)
2318 PPCODE:
2319{
2320 int fd;
2321#if HAVE_TIMERFD
2322 fd = timerfd_create (clockid, flags);
2323#else
2324 fd = (errno = ENOSYS, -1);
2325#endif
2326
2327 XPUSHs (newmortalFH (fd, O_RDWR));
2328}
2329
2330void
2331timerfd_settime (SV *fh, int flags, NV interval, NV value)
2332 PPCODE:
2333{
2334 int fd = s_fileno_croak (fh, 0);
2335#if HAVE_TIMERFD
2336 int res;
2337 struct itimerspec its, ots;
2338
2339 ts_set (&its.it_interval, interval);
2340 ts_set (&its.it_value , value);
2341 res = timerfd_settime (fd, flags, &its, &ots);
2342
2343 if (!res)
2344 {
2345 EXTEND (SP, 2);
2346 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2347 PUSHs (newSVnv (ts_get (&ots.it_value)));
2348 }
2349#else
2350 errno = ENOSYS;
2351#endif
2352}
2353
2354void
2355timerfd_gettime (SV *fh)
2356 PPCODE:
2357{
2358 int fd = s_fileno_croak (fh, 0);
2359#if HAVE_TIMERFD
2360 int res;
2361 struct itimerspec ots;
2362 res = timerfd_gettime (fd, &ots);
2363
2364 if (!res)
2365 {
2366 EXTEND (SP, 2);
2367 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2368 PUSHs (newSVnv (ts_get (&ots.it_value)));
2369 }
2370#else
2371 errno = ENOSYS;
2372#endif
2373}
2374
2375UV
2376get_fdlimit ()
2377 CODE:
2378#if HAVE_RLIMITS
2379 struct rlimit rl;
2380 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2381 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2382#endif
2383 XSRETURN_UNDEF;
2384 OUTPUT:
2385 RETVAL
2386
2387void
2388min_fdlimit (UV limit = 0x7fffffffU)
2389 CODE:
2390{
2391#if HAVE_RLIMITS
2392 struct rlimit rl;
2393 rlim_t orig_rlim_max;
2394 UV bit;
2395
2396 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2397 goto fail;
2398
2399 if (rl.rlim_cur == RLIM_INFINITY)
2400 XSRETURN_YES;
2401
2402 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2403
2404 if (rl.rlim_cur < limit)
2405 {
2406 rl.rlim_cur = limit;
2407
2408 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2409 rl.rlim_max = rl.rlim_cur;
2410 }
2411
2412 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2413 XSRETURN_YES;
2414
2415 if (errno == EPERM)
2416 {
2417 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2418 /* our limit overflows a system-wide limit */
2419 /* try an adaptive algorithm, but do not lower the hardlimit */
2420 rl.rlim_max = 0;
2421 for (bit = 0x40000000U; bit; bit >>= 1)
2422 {
2423 rl.rlim_max |= bit;
2424 rl.rlim_cur = rl.rlim_max;
2425
2426 /* nevr decrease the hard limit */
2427 if (rl.rlim_max < orig_rlim_max)
2428 break;
2429
2430 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2431 rl.rlim_max &= ~bit; /* too high, remove bit again */
2432 }
2433
2434 /* now, raise the soft limit to the max permitted */
2435 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2436 {
2437 rl.rlim_cur = rl.rlim_max;
2438 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2439 errno = EPERM;
2440 }
2441 }
2442#endif
2443 fail:
2444 XSRETURN_UNDEF;
2445}
2446
2447void _on_next_submit (SV *cb)
2448 CODE:
2449 SvREFCNT_dec (on_next_submit);
2450 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1511 2451
1512PROTOTYPES: DISABLE 2452PROTOTYPES: DISABLE
2453
2454MODULE = IO::AIO PACKAGE = IO::AIO::WD
2455
2456BOOT:
2457{
2458 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2459 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2460}
2461
2462void
2463DESTROY (SV *self)
2464 CODE:
2465{
2466 aio_wd wd = SvAIO_WD (self);
2467#if HAVE_AT
2468 {
2469 SV *callback = &PL_sv_undef;
2470 dREQ; /* clobbers next_pri :/ */
2471 next_pri = req->pri; /* restore next_pri */
2472 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2473 req->type = EIO_WD_CLOSE;
2474 req->wd = wd;
2475 REQ_SEND;
2476 }
2477#else
2478 eio_wd_close_sync (wd);
2479#endif
2480}
1513 2481
1514MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2482MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1515 2483
1516void 2484void
1517cancel (aio_req_ornot req) 2485cancel (aio_req_ornot req)
1518 CODE: 2486 CODE:
1519 req_cancel (req); 2487 eio_cancel (req);
1520 2488
1521void 2489void
1522cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2490cb (aio_req_ornot req, SV *callback = NO_INIT)
1523 CODE: 2491 PPCODE:
2492{
2493 if (GIMME_V != G_VOID)
2494 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2495
2496 if (items > 1)
2497 {
2498 SV *cb_cv = get_cb (callback);
2499
1524 SvREFCNT_dec (req->callback); 2500 SvREFCNT_dec (req->callback);
1525 req->callback = newSVsv (callback); 2501 req->callback = SvREFCNT_inc (cb_cv);
2502 }
2503}
1526 2504
1527MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2505MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1528 2506
1529void 2507void
1530add (aio_req grp, ...) 2508add (aio_req grp, ...)
1531 PPCODE: 2509 PPCODE:
1532{ 2510{
1533 int i; 2511 int i;
1534 aio_req req;
1535 2512
1536 if (grp->fd == 2) 2513 if (grp->int1 == 2)
1537 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2514 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1538 2515
1539 for (i = 1; i < items; ++i ) 2516 for (i = 1; i < items; ++i )
1540 { 2517 {
2518 aio_req req;
2519
1541 if (GIMME_V != G_VOID) 2520 if (GIMME_V != G_VOID)
1542 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2521 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1543 2522
1544 req = SvAIO_REQ (ST (i)); 2523 req = SvAIO_REQ (ST (i));
1545 2524
1546 if (req) 2525 if (req)
1547 { 2526 eio_grp_add (grp, req);
1548 ++grp->length;
1549 req->grp = grp;
1550
1551 req->grp_prev = 0;
1552 req->grp_next = grp->grp_first;
1553
1554 if (grp->grp_first)
1555 grp->grp_first->grp_prev = req;
1556
1557 grp->grp_first = req;
1558 }
1559 } 2527 }
1560} 2528}
1561 2529
1562void 2530void
1563cancel_subs (aio_req_ornot req) 2531cancel_subs (aio_req_ornot req)
… …
1572 AV *av; 2540 AV *av;
1573 2541
1574 grp->errorno = errno; 2542 grp->errorno = errno;
1575 2543
1576 av = newAV (); 2544 av = newAV ();
2545 av_extend (av, items - 1);
1577 2546
1578 for (i = 1; i < items; ++i ) 2547 for (i = 1; i < items; ++i )
1579 av_push (av, newSVsv (ST (i))); 2548 av_push (av, newSVsv (ST (i)));
1580 2549
1581 SvREFCNT_dec (grp->data); 2550 SvREFCNT_dec (grp->sv1);
1582 grp->data = (SV *)av; 2551 grp->sv1 = (SV *)av;
1583} 2552}
1584 2553
1585void 2554void
1586errno (aio_req grp, int errorno = errno) 2555errno (aio_req grp, int errorno = errno)
1587 CODE: 2556 CODE:
1588 grp->errorno = errorno; 2557 grp->errorno = errorno;
1589 2558
1590void 2559void
1591limit (aio_req grp, int limit) 2560limit (aio_req grp, int limit)
1592 CODE: 2561 CODE:
1593 grp->fd2 = limit; 2562 eio_grp_limit (grp, limit);
1594 aio_grp_feed (grp);
1595 2563
1596void 2564void
1597feed (aio_req grp, SV *callback=&PL_sv_undef) 2565feed (aio_req grp, SV *callback = &PL_sv_undef)
1598 CODE: 2566 CODE:
1599{ 2567{
1600 SvREFCNT_dec (grp->fh2); 2568 SvREFCNT_dec (grp->sv2);
1601 grp->fh2 = newSVsv (callback); 2569 grp->sv2 = newSVsv (callback);
2570 grp->feed = aio_grp_feed;
1602 2571
1603 if (grp->fd2 <= 0) 2572 if (grp->int2 <= 0)
1604 grp->fd2 = 2; 2573 grp->int2 = 2;
1605 2574
1606 aio_grp_feed (grp); 2575 eio_grp_limit (grp, grp->int2);
1607} 2576}
1608 2577

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