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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.268 by root, Thu Nov 29 19:49:48 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/* the incompetent fool that created musl keeps __linux__, refuses
34# if __linux 24 * to implement any linux standard apis, and also has no way to test
25 * for his broken iplementation. don't complain to me if this fails
26 * for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79 #undef utime
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
86 #include <sys/time.h>
35# include <sys/sendfile.h> 87 #include <sys/select.h>
36# elif __freebsd 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
109#include "config.h"
110
111#if HAVE_SYS_MKDEV_H
37# include <sys/socket.h> 112# include <sys/mkdev.h>
113#elif HAVE_SYS_SYSMACROS_H
114# include <sys/sysmacros.h>
115#endif
116
117#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
38# include <sys/uio.h> 118# include <sys/mman.h>
39# elif __hpux 119#endif
40# include <sys/socket.h> 120
41# elif __solaris /* not yet */ 121#if HAVE_ST_XTIMENSEC
122# define ATIMENSEC PL_statcache.st_atimensec
123# define MTIMENSEC PL_statcache.st_mtimensec
124# define CTIMENSEC PL_statcache.st_ctimensec
125#elif HAVE_ST_XTIMESPEC
126# define ATIMENSEC PL_statcache.st_atim.tv_nsec
127# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
128# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
129#else
130# define ATIMENSEC 0
131# define MTIMENSEC 0
132# define CTIMENSEC 0
133#endif
134
135#if HAVE_ST_BIRTHTIMENSEC
136# define BTIMESEC PL_statcache.st_birthtime
137# define BTIMENSEC PL_statcache.st_birthtimensec
138#elif HAVE_ST_BIRTHTIMESPEC
139# define BTIMESEC PL_statcache.st_birthtim.tv_sec
140# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
141#else
142# define BTIMESEC 0
143# define BTIMENSEC 0
144#endif
145
146#if HAVE_ST_GEN
147# define ST_GEN PL_statcache.st_gen
148#else
149# define ST_GEN 0
150#endif
151
152#include "schmorp.h"
153
154#if HAVE_EVENTFD
42# include <sys/sendfile.h> 155# include <sys/eventfd.h>
156#endif
157
158#if HAVE_TIMERFD
159# include <sys/timerfd.h>
160#endif
161
162#if HAVE_RLIMITS
163 #include <sys/time.h>
164 #include <sys/resource.h>
165#endif
166
167typedef SV SV8; /* byte-sv, used for argument-checking */
168typedef int aio_rfd; /* read file desriptor */
169typedef int aio_wfd; /* write file descriptor */
170
171static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
172
173#define EIO_REQ_MEMBERS \
174 SV *callback; \
175 SV *sv1, *sv2; \
176 SV *sv3, *sv4; \
177 STRLEN stroffset; \
178 SV *self;
179
180#define EIO_NO_WRAPPERS 1
181
182#include "libeio/eio.h"
183
184static int req_invoke (eio_req *req);
185#define EIO_FINISH(req) req_invoke (req)
186static void req_destroy (eio_req *grp);
187#define EIO_DESTROY(req) req_destroy (req)
188
189#include "libeio/eio.c"
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#if !HAVE_POSIX_MADVISE
196# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
197#endif
198
199#ifndef MAP_ANONYMOUS
200# ifdef MAP_ANON
201# define MAP_ANONYMOUS MAP_ANON
43# else 202# else
44# error sendfile support requested but not available 203# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 204# endif
46#endif 205#endif
47 206
48/* used for struct dirent, AIX doesn't provide it */ 207#ifndef makedev
49#ifndef NAME_MAX 208# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif 209#endif
52 210#ifndef major
53#ifndef PTHREAD_STACK_MIN 211# define major(dev) ((dev) >> 8)
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 212#endif
57 213#ifndef minor
58#if __ia64 214# define minor(dev) ((dev) & 0xff)
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 215#endif
65 216
66/* buffer size for various temporary buffers */ 217/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
67#define AIO_BUFSIZE 65536 218#ifdef __sun
219# undef PAGESIZE
220#endif
68 221
69#define dBUF \ 222#if PAGESIZE <= 0
70 char *aio_buf; \ 223# define PAGESIZE sysconf (_SC_PAGESIZE)
71 LOCK (wrklock); \ 224#endif
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 225
73 UNLOCK (wrklock); \ 226/*****************************************************************************/
74 if (!aio_buf) \ 227
228#if !_POSIX_MAPPED_FILES
229# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
230# define munmap(addr,length) EIO_ENOSYS ()
231#endif
232
233#if !_POSIX_MEMORY_PROTECTION
234# define mprotect(addr,len,prot) EIO_ENOSYS ()
235#endif
236
237#if !MREMAP_MAYMOVE
238# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
239#endif
240
241#define FOREIGN_MAGIC PERL_MAGIC_ext
242
243static int ecb_cold
244mmap_free (pTHX_ SV *sv, MAGIC *mg)
245{
246 int old_errno = errno;
247 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
248 errno = old_errno;
249
250 mg->mg_obj = 0; /* just in case */
251
252 SvREADONLY_off (sv);
253
254 if (SvPVX (sv) != mg->mg_ptr)
255 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
256
257 SvCUR_set (sv, 0);
258 SvPVX (sv) = 0;
259 SvOK_off (sv);
260
75 return -1; 261 return 0;
262}
76 263
77enum { 264static MGVTBL mmap_vtbl = {
78 REQ_QUIT, 265 0, 0, 0, 0, mmap_free
79 REQ_OPEN, REQ_CLOSE,
80 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP,
88 REQ_BUSY,
89}; 266};
90 267
91#define AIO_REQ_KLASS "IO::AIO::REQ" 268static int ecb_cold
92#define AIO_GRP_KLASS "IO::AIO::GRP" 269sysfree_free (pTHX_ SV *sv, MAGIC *mg)
93
94typedef struct aio_cb
95{ 270{
96 struct aio_cb *volatile next; 271 free (mg->mg_ptr);
272 mg->mg_obj = 0; /* just in case */
97 273
98 SV *data, *callback; 274 SvREADONLY_off (sv);
99 SV *fh, *fh2;
100 void *dataptr, *data2ptr;
101 Stat_t *statdata;
102 off_t offset;
103 size_t length;
104 ssize_t result;
105 275
106 STRLEN dataoffset; 276 if (SvPVX (sv) != mg->mg_ptr)
107 int type; 277 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
108 int fd, fd2;
109 int errorno;
110 mode_t mode; /* open */
111 278
112 unsigned char flags; 279 SvCUR_set (sv, 0);
113 unsigned char pri; 280 SvPVX (sv) = 0;
281 SvOK_off (sv);
114 282
115 SV *self; /* the perl counterpart of this request, if any */ 283 return 0;
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 284}
117} aio_cb;
118 285
119enum { 286static MGVTBL sysfree_vtbl = {
120 FLAG_CANCELLED = 0x01, 287 0, 0, 0, 0, sysfree_free
121}; 288};
122 289
123typedef aio_cb *aio_req; 290/*****************************************************************************/
124typedef aio_cb *aio_req_ornot;
125 291
126enum { 292/* helper: set scalar to foreign ptr with custom free */
127 PRI_MIN = -4, 293static void
128 PRI_MAX = 4, 294sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
129
130 DEFAULT_PRI = 0,
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134
135static int next_pri = DEFAULT_PRI + PRI_BIAS;
136
137static unsigned int started, wanted;
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146#endif
147
148#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150
151/* worker threads management */
152static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
153
154typedef struct worker {
155 /* locked by wrklock */
156 struct worker *prev, *next;
157
158 pthread_t tid;
159
160 /* locked by reslock, reqlock or wrklock */
161 aio_req req; /* currently processed request */
162 void *dbuf;
163 DIR *dirp;
164} worker;
165
166static worker wrk_first = { &wrk_first, &wrk_first, 0 };
167
168static void worker_clear (worker *wrk)
169{ 295{
170 if (wrk->dirp) 296 sv_force_normal (sv);
297
298 /* we store the length in mg_obj, as namlen is I32 :/ */
299 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
300 ->mg_obj = (SV *)length;
301
302 SvUPGRADE (sv, SVt_PV); /* nop... */
303
304 if (SvLEN (sv))
305 Safefree (SvPVX (sv));
306
307 SvPVX (sv) = (char *)addr;
308 SvCUR_set (sv, length);
309 SvLEN_set (sv, 0);
310 SvPOK_only (sv);
311}
312
313static void
314sv_clear_foreign (SV *sv)
315{
316 /* todo: iterate over magic and only free ours, but of course */
317 /* the perl5porters will call that (correct) behaviour buggy */
318 sv_unmagic (sv, FOREIGN_MAGIC);
319}
320
321/*****************************************************************************/
322
323/* defines all sorts of constants to 0 unless they are already defined */
324/* also provides const_iv_ and const_niv_ macros for them */
325#include "def0.h"
326
327/*****************************************************************************/
328
329static void
330fiemap (eio_req *req)
331{
332 req->result = -1;
333
334#if HAVE_FIEMAP
335 /* assume some c99 */
336 struct fiemap *fiemap = 0;
337 size_t end_offset;
338 int count = req->int3;
339
340 req->flags |= EIO_FLAG_PTR1_FREE;
341
342 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
343 /* increase in 3.5kb steps */
344 if (count < 0)
345 count = 8;
346
347 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
348 errno = ENOMEM;
349 if (!fiemap)
350 return;
351
352 req->ptr1 = fiemap;
353
354 fiemap->fm_start = req->offs;
355 fiemap->fm_length = req->size;
356 fiemap->fm_flags = req->int2;
357 fiemap->fm_extent_count = count;
358
359 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
360 return;
361
362 if (req->int3 >= 0 /* not autosizing */
363 || !fiemap->fm_mapped_extents /* no more extents */
364 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
365 goto done;
366
367 /* else we have to loop -
368 * it would be tempting (actually I tried that first) to just query the
369 * number of extents needed, but linux often feels like not returning all
370 * extents, without telling us it left any out. this complicates
371 * this quite a bit.
372 */
373
374 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
375
376 for (;;)
171 { 377 {
172 closedir (wrk->dirp); 378 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
173 wrk->dirp = 0; 379 char scratch[3072];
174 } 380 struct fiemap *incmap = (struct fiemap *)scratch;
175 381
176 if (wrk->dbuf) 382 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
177 { 383 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
178 free (wrk->dbuf); 384 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
179 wrk->dbuf = 0; 385 incmap->fm_flags = fiemap->fm_flags;
180 } 386 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
181}
182 387
183static void worker_free (worker *wrk) 388 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
184{
185 wrk->next->prev = wrk->prev;
186 wrk->prev->next = wrk->next;
187
188 free (wrk);
189}
190
191static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
194
195/*
196 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation.
199 */
200typedef struct {
201 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
202 int size;
203} reqq;
204
205static reqq req_queue;
206static reqq res_queue;
207
208int reqq_push (reqq *q, aio_req req)
209{
210 int pri = req->pri;
211 req->next = 0;
212
213 if (q->qe[pri])
214 {
215 q->qe[pri]->next = req;
216 q->qe[pri] = req;
217 }
218 else
219 q->qe[pri] = q->qs[pri] = req;
220
221 return q->size++;
222}
223
224aio_req reqq_shift (reqq *q)
225{
226 int pri;
227
228 if (!q->size)
229 return 0; 389 return;
230 390
231 --q->size; 391 if (!incmap->fm_mapped_extents)
392 goto done;
232 393
233 for (pri = NUM_PRI; pri--; ) 394 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
234 { 395 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
235 aio_req req = q->qs[pri]; 396 errno = ENOMEM;
236
237 if (req) 397 if (!fiemap)
398 return;
399
400 req->ptr1 = fiemap;
401
402 for (count = 0; count < incmap->fm_mapped_extents; ++count)
238 { 403 {
239 if (!(q->qs[pri] = req->next)) 404 struct fiemap_extent *e = incmap->fm_extents + count;
240 q->qe[pri] = 0;
241 405
242 return req; 406 if (e->fe_logical + e->fe_length >= end_offset)
407 goto done;
408
409 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
410
411 if (e->fe_flags & FIEMAP_EXTENT_LAST)
412 goto done;
413
243 } 414 }
244 } 415 }
245 416
246 abort (); 417done:
247} 418 req->result = 0;
248 419
249static int poll_cb (int max); 420#else
250static void req_invoke (aio_req req); 421 errno = ENOSYS;
422#endif
423}
424
425/*****************************************************************************/
426
427static int close_fd; /* dummy fd to close fds via dup2 */
428
429enum {
430 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
431};
432
433typedef eio_req *aio_req;
434typedef eio_req *aio_req_ornot;
435typedef eio_wd aio_wd;
436
437static SV *on_next_submit;
438static int next_pri = EIO_PRI_DEFAULT;
439static int max_outstanding;
440
441static s_epipe respipe;
442
251static void req_free (aio_req req); 443static void req_destroy (aio_req req);
252static void req_cancel (aio_req req); 444static void req_cancel (aio_req req);
253 445
446static void
447want_poll (void)
448{
449 /* write a dummy byte to the pipe so fh becomes ready */
450 s_epipe_signal (&respipe);
451}
452
453static void
454done_poll (void)
455{
456 /* read any signals sent by the worker threads */
457 s_epipe_drain (&respipe);
458}
459
254/* must be called at most once */ 460/* must be called at most once */
255static SV *req_sv (aio_req req, const char *klass) 461static SV *
462req_sv (aio_req req, HV *stash)
256{ 463{
257 if (!req->self) 464 if (!req->self)
258 { 465 {
259 req->self = (SV *)newHV (); 466 req->self = (SV *)newHV ();
260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 467 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
261 } 468 }
262 469
263 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 470 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
264} 471}
265 472
266static aio_req SvAIO_REQ (SV *sv) 473static SV *
474newSVaio_wd (aio_wd wd)
475{
476 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
477}
478
479static aio_req
480SvAIO_REQ (SV *sv)
267{ 481{
268 MAGIC *mg; 482 MAGIC *mg;
269 483
270 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 484 if (!SvROK (sv)
485 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
486 || (SvSTASH (SvRV (sv)) != aio_grp_stash
487 && SvSTASH (SvRV (sv)) != aio_req_stash
488 && !sv_derived_from (sv, "IO::AIO::REQ")))
271 croak ("object of class " AIO_REQ_KLASS " expected"); 489 croak ("object of class IO::AIO::REQ expected");
272 490
273 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 491 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
274 492
275 return mg ? (aio_req)mg->mg_ptr : 0; 493 return mg ? (aio_req)mg->mg_ptr : 0;
276} 494}
277 495
496static aio_wd
497SvAIO_WD (SV *sv)
498{
499 if (!SvROK (sv)
500 || SvTYPE (SvRV (sv)) != SVt_PVMG
501 || SvSTASH (SvRV (sv)) != aio_wd_stash)
502 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
503
504 return (aio_wd)(long)SvIVX (SvRV (sv));
505}
506
507static SV *
508newmortalFH (int fd, int flags)
509{
510 if (fd < 0)
511 return &PL_sv_undef;
512
513 GV *gv = (GV *)sv_newmortal ();
514 char sym[64];
515 int symlen;
516
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
518 gv_init (gv, aio_stash, sym, symlen, 0);
519
520 symlen = snprintf (
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 fd
526 );
527
528 return do_open (gv, sym, symlen, 0, 0, 0, 0)
529 ? (SV *)gv : &PL_sv_undef;
530}
531
532static void
278static void aio_grp_feed (aio_req grp) 533aio_grp_feed (aio_req grp)
279{ 534{
280 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 535 if (grp->sv2 && SvOK (grp->sv2))
281 { 536 {
282 int old_len = grp->length;
283
284 if (grp->fh2 && SvOK (grp->fh2))
285 {
286 dSP; 537 dSP;
287 538
288 ENTER; 539 ENTER;
289 SAVETMPS; 540 SAVETMPS;
290 PUSHMARK (SP); 541 PUSHMARK (SP);
291 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 542 XPUSHs (req_sv (grp, aio_grp_stash));
292 PUTBACK; 543 PUTBACK;
293 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 544 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294 SPAGAIN; 545 SPAGAIN;
295 FREETMPS; 546 FREETMPS;
296 LEAVE; 547 LEAVE;
297 }
298
299 /* stop if no progress has been made */
300 if (old_len == grp->length)
301 {
302 SvREFCNT_dec (grp->fh2);
303 grp->fh2 = 0;
304 break;
305 }
306 } 548 }
307} 549}
308 550
309static void aio_grp_dec (aio_req grp) 551static void
552req_submit (eio_req *req)
310{ 553{
311 --grp->length; 554 eio_submit (req);
312 555
313 /* call feeder, if applicable */ 556 if (expect_false (on_next_submit))
314 aio_grp_feed (grp);
315
316 /* finish, if done */
317 if (!grp->length && grp->fd)
318 { 557 {
319 req_invoke (grp); 558 dSP;
320 req_free (grp); 559 SV *cb = sv_2mortal (on_next_submit);
560
561 on_next_submit = 0;
562
563 PUSHMARK (SP);
564 PUTBACK;
565 call_sv (cb, G_DISCARD | G_EVAL);
321 } 566 }
322} 567}
323 568
324static void poll_wait () 569static int
570req_invoke (eio_req *req)
325{ 571{
326 fd_set rfd; 572 if (req->flags & FLAG_SV2_RO_OFF)
573 SvREADONLY_off (req->sv2);
327 574
328 while (nreqs) 575 if (!EIO_CANCELLED (req) && req->callback)
329 { 576 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req)
350{
351 dSP; 577 dSP;
352 578 static SV *sv_result_cache; /* caches the result integer SV */
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 579 SV *sv_result;
354 {
355 errno = req->errorno;
356 580
357 ENTER; 581 ENTER;
358 SAVETMPS; 582 SAVETMPS;
359 PUSHMARK (SP); 583 PUSHMARK (SP);
360 EXTEND (SP, 1); 584 EXTEND (SP, 1);
361 585
586 /* do not recreate the result IV from scratch each time */
587 if (expect_true (sv_result_cache))
588 {
589 sv_result = sv_result_cache; sv_result_cache = 0;
590 SvIV_set (sv_result, req->result);
591 SvIOK_only (sv_result);
592 }
593 else
594 {
595 sv_result = newSViv (req->result);
596 SvREADONLY_on (sv_result);
597 }
598
362 switch (req->type) 599 switch (req->type)
363 { 600 {
601 case EIO_WD_OPEN:
602 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
603 break;
604
364 case REQ_READDIR: 605 case EIO_READDIR:
365 { 606 {
366 SV *rv = &PL_sv_undef; 607 SV *rv = &PL_sv_undef;
367 608
368 if (req->result >= 0) 609 if (req->result >= 0)
369 { 610 {
370 int i; 611 int i;
371 char *buf = req->data2ptr; 612 char *names = (char *)req->ptr2;
613 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
372 AV *av = newAV (); 614 AV *av = newAV ();
373 615
374 av_extend (av, req->result - 1); 616 av_extend (av, req->result - 1);
375 617
376 for (i = 0; i < req->result; ++i) 618 for (i = 0; i < req->result; ++i)
377 { 619 {
378 SV *sv = newSVpv (buf, 0); 620 if (req->int1 & EIO_READDIR_DENTS)
621 {
622 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
379 623
624 if (req->int1 & EIO_READDIR_CUSTOM2)
625 {
626 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
627 AV *avent = newAV ();
628
629 av_extend (avent, 2);
630
631 if (!sv_type [ent->type])
632 {
633 sv_type [ent->type] = newSViv (ent->type);
634 SvREADONLY_on (sv_type [ent->type]);
635 }
636
637 av_store (avent, 0, namesv);
638 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
639 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
640
641 av_store (av, i, newRV_noinc ((SV *)avent));
642 }
643 else
380 av_store (av, i, sv); 644 av_store (av, i, namesv);
645
646 ++ent;
647 }
648 else
649 {
650 SV *name = newSVpv (names, 0);
651 av_store (av, i, name);
381 buf += SvCUR (sv) + 1; 652 names += SvCUR (name) + 1;
653 }
382 } 654 }
383 655
384 rv = sv_2mortal (newRV_noinc ((SV *)av)); 656 rv = sv_2mortal (newRV_noinc ((SV *)av));
385 } 657 }
386 658
387 PUSHs (rv); 659 PUSHs (rv);
660
661 if (req->int1 & EIO_READDIR_CUSTOM1)
662 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
388 } 663 }
389 break; 664 break;
390 665
391 case REQ_OPEN: 666 case EIO_OPEN:
667 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
668 break;
669
670 case EIO_STATVFS:
671 case EIO_FSTATVFS:
392 { 672 {
393 /* convert fd to fh */ 673 SV *rv = &PL_sv_undef;
394 SV *fh; 674
675#ifndef _WIN32
676 if (req->result >= 0)
677 {
678 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
679 HV *hv = newHV ();
680 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
681 * chooses to make it a struct.
682 */
683 unsigned long fsid = 0;
684 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
395 685
396 PUSHs (sv_2mortal (newSViv (req->result))); 686 rv = sv_2mortal (newRV_noinc ((SV *)hv));
397 PUTBACK;
398 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
399 SPAGAIN;
400 687
401 fh = SvREFCNT_inc (POPs); 688 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
689 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
690 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
691 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
692 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
693 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
694 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
695 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
696 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
697 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
698 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
699 }
700#endif
402 701
403 PUSHMARK (SP); 702 PUSHs (rv);
404 XPUSHs (sv_2mortal (fh));
405 } 703 }
704
406 break; 705 break;
407 706
408 case REQ_GROUP: 707 case EIO_GROUP:
409 req->fd = 2; /* mark group as finished */ 708 req->int1 = 2; /* mark group as finished */
410 709
411 if (req->data) 710 if (req->sv1)
412 { 711 {
413 int i; 712 int i;
414 AV *av = (AV *)req->data; 713 AV *av = (AV *)req->sv1;
415 714
416 EXTEND (SP, AvFILL (av) + 1); 715 EXTEND (SP, AvFILL (av) + 1);
417 for (i = 0; i <= AvFILL (av); ++i) 716 for (i = 0; i <= AvFILL (av); ++i)
418 PUSHs (*av_fetch (av, i, 0)); 717 PUSHs (*av_fetch (av, i, 0));
419 } 718 }
420 break; 719 break;
421 720
422 case REQ_NOP: 721 case EIO_NOP:
423 case REQ_BUSY: 722 case EIO_BUSY:
424 break; 723 break;
425 724
725 case EIO_READLINK:
726 case EIO_REALPATH:
727 if (req->result > 0)
728 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
729 break;
730
731 case EIO_STAT:
732 case EIO_LSTAT:
733 case EIO_FSTAT:
734 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
735
736 if (!(PL_laststatval = req->result))
737 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
738 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
739
740 PUSHs (sv_result);
741 break;
742
743 case EIO_SEEK:
744 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
745 break;
746
747 case EIO_READ:
748 {
749 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
750 *SvEND (req->sv2) = 0;
751 SvPOK_only (req->sv2);
752 SvSETMAGIC (req->sv2);
753 PUSHs (sv_result);
754 }
755 break;
756
757 case EIO_SLURP:
758 {
759 if (req->result >= 0)
760 {
761 /* if length was originally not known, we steal the malloc'ed memory */
762 if (req->flags & EIO_FLAG_PTR2_FREE)
763 {
764 req->flags &= ~EIO_FLAG_PTR2_FREE;
765 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
766 }
767 else
768 {
769 SvCUR_set (req->sv2, req->result);
770 *SvEND (req->sv2) = 0;
771 SvPOK_only (req->sv2);
772 }
773
774 SvSETMAGIC (req->sv2);
775 }
776
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_CUSTOM:
782 if (req->feed == fiemap)
783 {
784#if HAVE_FIEMAP
785 if (!req->result)
786 {
787 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
788
789 if (fiemap->fm_extent_count)
790 {
791 AV *av = newAV ();
792 int i;
793
794 while (fiemap->fm_mapped_extents)
795 {
796 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
797 AV *ext_av = newAV ();
798
799 av_store (ext_av, 3, newSVuv (extent->fe_flags));
800 av_store (ext_av, 2, newSVval64 (extent->fe_length));
801 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
802 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
803
804 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
805 }
806
807 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
808 }
809 else
810 {
811 SvIV_set (sv_result, fiemap->fm_mapped_extents);
812 PUSHs (sv_result);
813 }
814 }
815#endif
816 }
817 else
818 PUSHs (sv_result);
819 break;
820
821 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
822 if (req->result > 0)
823 SvIV_set (sv_result, 0);
824 /* FALLTHROUGH */
825
426 default: 826 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 827 PUSHs (sv_result);
428 break; 828 break;
429 } 829 }
430 830
831 errno = req->errorno;
431 832
432 PUTBACK; 833 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 834 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
434 SPAGAIN; 835 SPAGAIN;
836
837 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
838 SvREFCNT_dec (sv_result);
839 else
840 sv_result_cache = sv_result;
435 841
436 FREETMPS; 842 FREETMPS;
437 LEAVE; 843 LEAVE;
844
845 PUTBACK;
438 } 846 }
439 847
440 if (req->grp) 848 return !!SvTRUE (ERRSV);
441 {
442 aio_req grp = req->grp;
443
444 /* unlink request */
445 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
446 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
447
448 if (grp->grp_first == req)
449 grp->grp_first = req->grp_next;
450
451 aio_grp_dec (grp);
452 }
453
454 if (SvTRUE (ERRSV))
455 {
456 req_free (req);
457 croak (0);
458 }
459} 849}
460 850
461static void req_free (aio_req req) 851static void
852req_destroy (aio_req req)
462{ 853{
463 if (req->self) 854 if (req->self)
464 { 855 {
465 sv_unmagic (req->self, PERL_MAGIC_ext); 856 sv_unmagic (req->self, PERL_MAGIC_ext);
466 SvREFCNT_dec (req->self); 857 SvREFCNT_dec (req->self);
467 } 858 }
468 859
469 SvREFCNT_dec (req->data);
470 SvREFCNT_dec (req->fh); 860 SvREFCNT_dec (req->sv1);
471 SvREFCNT_dec (req->fh2); 861 SvREFCNT_dec (req->sv2);
862 SvREFCNT_dec (req->sv3);
863 SvREFCNT_dec (req->sv4);
472 SvREFCNT_dec (req->callback); 864 SvREFCNT_dec (req->callback);
473 Safefree (req->statdata);
474 865
475 if (req->type == REQ_READDIR)
476 free (req->data2ptr);
477
478 Safefree (req); 866 free (req);
479} 867}
480 868
869static void
481static void req_cancel_subs (aio_req grp) 870req_cancel_subs (aio_req grp)
482{ 871{
483 aio_req sub;
484
485 if (grp->type != REQ_GROUP) 872 if (grp->type != EIO_GROUP)
486 return; 873 return;
487 874
488 SvREFCNT_dec (grp->fh2); 875 SvREFCNT_dec (grp->sv2);
489 grp->fh2 = 0; 876 grp->sv2 = 0;
490 877
491 for (sub = grp->grp_first; sub; sub = sub->grp_next) 878 eio_grp_cancel (grp);
492 req_cancel (sub);
493} 879}
494 880
495static void req_cancel (aio_req req) 881static void ecb_cold
882create_respipe (void)
496{ 883{
497 req->flags |= FLAG_CANCELLED; 884 if (s_epipe_renew (&respipe))
498 885 croak ("IO::AIO: unable to initialize result pipe");
499 req_cancel_subs (req);
500} 886}
501 887
502static int poll_cb (int max) 888static void
889poll_wait (void)
503{ 890{
504 dSP; 891 while (eio_nreqs ())
505 int count = 0; 892 {
506 int do_croak = 0; 893 int size;
507 aio_req req;
508 894
895 X_LOCK (EIO_POOL->reslock);
896 size = EIO_POOL->res_queue.size;
897 X_UNLOCK (EIO_POOL->reslock);
898
899 if (size)
900 return;
901
902 etp_maybe_start_thread (EIO_POOL);
903
904 s_epipe_wait (&respipe);
905 }
906}
907
908static int
909poll_cb (void)
910{
509 for (;;) 911 for (;;)
510 { 912 {
511 while (max <= 0 || count < max) 913 int res = eio_poll ();
914
915 if (res > 0)
916 croak (0);
917
918 if (!max_outstanding || max_outstanding > eio_nreqs ())
919 return res;
920
921 poll_wait ();
922 }
923}
924
925static void ecb_cold
926reinit (void)
927{
928 create_respipe ();
929
930 if (eio_init (want_poll, done_poll) < 0)
931 croak ("IO::AIO: unable to initialise eio library");
932}
933
934/*****************************************************************************/
935
936static SV *
937get_cb (SV *cb_sv)
938{
939 SvGETMAGIC (cb_sv);
940 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
941}
942
943static aio_req ecb_noinline
944dreq (SV *callback)
945{
946 SV *cb_cv;
947 aio_req req;
948 int req_pri = next_pri;
949 next_pri = EIO_PRI_DEFAULT;
950
951 cb_cv = get_cb (callback);
952
953 req = calloc (sizeof (*req), 1);
954 if (!req)
955 croak ("out of memory during eio_req allocation");
956
957 req->callback = SvREFCNT_inc (cb_cv);
958 req->pri = req_pri;
959
960 return req;
961}
962
963#define dREQ \
964 aio_req req = dreq (callback); \
965
966#define REQ_SEND \
967 PUTBACK; \
968 req_submit (req); \
969 SPAGAIN; \
970 \
971 if (GIMME_V != G_VOID) \
972 XPUSHs (req_sv (req, aio_req_stash));
973
974ecb_inline void
975req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
976{
977 if (expect_false (SvROK (path)))
978 {
979 SV *rv = SvRV (path);
980 SV *wdob;
981
982 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
512 { 983 {
513 LOCK (reslock); 984 path = AvARRAY (rv)[1];
514 req = reqq_shift (&res_queue); 985 wdob = AvARRAY (rv)[0];
515 986
516 if (req) 987 if (SvOK (wdob))
517 { 988 {
518 if (!res_queue.size) 989 *wd = SvAIO_WD (wdob);
519 { 990 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
520 /* read any signals sent by the worker threads */
521 char buf [32];
522 while (read (respipe [0], buf, 32) == 32)
523 ;
524 }
525 }
526
527 UNLOCK (reslock);
528
529 if (!req)
530 break;
531
532 --nreqs;
533
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length)
537 {
538 req->fd = 1; /* mark request as delayed */
539 continue;
540 } 991 }
541 else 992 else
542 { 993 *wd = EIO_INVALID_WD;
543 if (req->type == REQ_READ)
544 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547 SvREADONLY_off (req->data);
548
549 if (req->statdata)
550 {
551 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552 PL_laststatval = req->result;
553 PL_statcache = *(req->statdata);
554 }
555
556 req_invoke (req);
557
558 count++;
559 }
560
561 req_free (req);
562 } 994 }
995 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
996 {
997 *wd = (aio_wd)(long)SvIVX (rv);
998 *wdsv = SvREFCNT_inc_NN (rv);
999 *ptr = ".";
1000 return; /* path set to "." */
1001 }
1002 else
1003 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1004 }
563 1005
564 if (nreqs <= max_outstanding) 1006 *pathsv = newSVsv (path);
1007 *ptr = SvPVbyte_nolen (*pathsv);
1008}
1009
1010static void ecb_noinline
1011req_set_path1 (aio_req req, SV *path)
1012{
1013 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1014}
1015
1016static void ecb_noinline
1017req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1018{
1019 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1020
1021 switch (SvTYPE (rv))
1022 {
1023 case SVt_PVIO:
1024 case SVt_PVLV:
1025 case SVt_PVGV:
1026 req->type = type_fh;
1027 req->sv1 = newSVsv (fh_or_path);
1028 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
565 break; 1029 break;
566 1030
567 poll_wait (); 1031 default:
568 1032 req->type = type_path;
569 max = 0; 1033 req_set_path1 (req, fh_or_path);
1034 break;
570 } 1035 }
571
572 return count;
573}
574
575static void *aio_proc(void *arg);
576
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void req_send (aio_req req)
612{
613 while (started < wanted && nreqs >= started)
614 start_thread ();
615
616 ++nreqs;
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 {
651 end_thread ();
652 cur--;
653 }
654
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660}
661
662static void create_pipe ()
663{
664 if (pipe (respipe))
665 croak ("unable to initialize result pipe");
666
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668 croak ("cannot set result pipe to nonblocking mode");
669
670 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671 croak ("cannot set result pipe to nonblocking mode");
672} 1036}
673 1037
674/*****************************************************************************/ 1038/*****************************************************************************/
675/* work around various missing functions */
676 1039
677#if !HAVE_PREADWRITE 1040static void
678# define pread aio_pread 1041ts_set (struct timespec *ts, NV value)
679# define pwrite aio_pwrite
680
681/*
682 * make our pread/pwrite safe against themselves, but not against
683 * normal read/write by using a mutex. slows down execution a lot,
684 * but that's your problem, not mine.
685 */
686static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
687
688static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
689{ 1042{
690 ssize_t res; 1043 ts->tv_sec = value;
691 off_t ooffset; 1044 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
692
693 LOCK (preadwritelock);
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = read (fd, buf, count);
697 lseek (fd, ooffset, SEEK_SET);
698 UNLOCK (preadwritelock);
699
700 return res;
701} 1045}
702 1046
703static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1047static NV
1048ts_get (const struct timespec *ts)
704{ 1049{
705 ssize_t res; 1050 return ts->tv_sec + ts->tv_nsec * 1e-9;
706 off_t ooffset;
707
708 LOCK (preadwritelock);
709 ooffset = lseek (fd, 0, SEEK_CUR);
710 lseek (fd, offset, SEEK_SET);
711 res = write (fd, buf, count);
712 lseek (fd, offset, SEEK_SET);
713 UNLOCK (preadwritelock);
714
715 return res;
716} 1051}
717#endif
718 1052
719#if !HAVE_FDATASYNC 1053/*****************************************************************************/
720# define fdatasync fsync
721#endif
722 1054
723#if !HAVE_READAHEAD 1055XS(boot_IO__AIO) ecb_cold;
724# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725 1056
726static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1057MODULE = IO::AIO PACKAGE = IO::AIO
727{
728 dBUF;
729 1058
730 while (count > 0) 1059PROTOTYPES: ENABLE
731 {
732 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
733 1060
734 pread (fd, aio_buf, len, offset); 1061BOOT:
735 offset += len;
736 count -= len;
737 }
738
739 errno = 0;
740}
741
742#endif
743
744#if !HAVE_READDIR_R
745# define readdir_r aio_readdir_r
746
747static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
748
749static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
750{ 1062{
751 struct dirent *e; 1063 static const struct {
752 int errorno; 1064 const char *name;
1065 IV iv;
1066 } *civ, const_iv[] = {
1067# define const_niv(name, value) { # name, (IV) value },
1068# define const_iv(name) { # name, (IV) name },
1069# define const_eio(name) { # name, (IV) EIO_ ## name },
753 1070
754 LOCK (readdirlock); 1071 /* you have to re-run ./gendef0 after adding/removing any constants here */
1072 /* the first block can be undef if missing */
1073 const_iv (ENOSYS)
1074 const_iv (EXDEV)
1075 const_iv (EBADR)
755 1076
756 e = readdir (dirp); 1077 /* for lseek */
757 errorno = errno; 1078 const_iv (SEEK_DATA)
1079 const_iv (SEEK_HOLE)
758 1080
759 if (e) 1081 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
760 { 1082 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
761 *res = ent; 1083 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
762 strcpy (ent->d_name, e->d_name); 1084 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
763 } 1085 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
764 else 1086 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
765 *res = 0;
766 1087
767 UNLOCK (readdirlock); 1088 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1089 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1090 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1091 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1092 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
768 1093
769 errno = errorno; 1094 /* the second block will be 0 when missing */
770 return e ? 0 : -1; 1095 const_iv (O_ACCMODE)
771}
772#endif
773 1096
774/* sendfile always needs emulation */ 1097 const_iv (O_RDONLY)
775static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1098 const_iv (O_WRONLY)
776{ 1099 const_iv (O_RDWR)
777 ssize_t res; 1100 const_iv (O_CREAT)
1101 const_iv (O_TRUNC)
1102 const_iv (O_EXCL)
1103 const_iv (O_APPEND)
778 1104
779 if (!count) 1105 const_iv (O_ASYNC)
780 return 0; 1106 const_iv (O_DIRECT)
1107 const_iv (O_NOATIME)
781 1108
782#if HAVE_SENDFILE 1109 const_iv (O_CLOEXEC)
783# if __linux 1110 const_iv (O_NOCTTY)
784 res = sendfile (ofd, ifd, &offset, count); 1111 const_iv (O_NOFOLLOW)
1112 const_iv (O_NONBLOCK)
1113 const_iv (O_EXEC)
1114 const_iv (O_SEARCH)
1115 const_iv (O_DIRECTORY)
1116 const_iv (O_DSYNC)
1117 const_iv (O_RSYNC)
1118 const_iv (O_SYNC)
1119 const_iv (O_PATH)
1120 const_iv (O_TMPFILE)
1121 const_iv (O_TTY_INIT)
785 1122
786# elif __freebsd 1123 const_iv (S_IFIFO)
787 /* 1124 const_iv (S_IFCHR)
788 * Of course, the freebsd sendfile is a dire hack with no thoughts 1125 const_iv (S_IFBLK)
789 * wasted on making it similar to other I/O functions. 1126 const_iv (S_IFLNK)
790 */ 1127 const_iv (S_IFREG)
1128 const_iv (S_IFDIR)
1129 const_iv (S_IFWHT)
1130 const_iv (S_IFSOCK)
1131 const_iv (S_IFMT)
1132
1133 const_iv (ST_RDONLY)
1134 const_iv (ST_NOSUID)
1135 const_iv (ST_NODEV)
1136 const_iv (ST_NOEXEC)
1137 const_iv (ST_SYNCHRONOUS)
1138 const_iv (ST_MANDLOCK)
1139 const_iv (ST_WRITE)
1140 const_iv (ST_APPEND)
1141 const_iv (ST_IMMUTABLE)
1142 const_iv (ST_NOATIME)
1143 const_iv (ST_NODIRATIME)
1144 const_iv (ST_RELATIME)
1145
1146 const_iv (PROT_NONE)
1147 const_iv (PROT_EXEC)
1148 const_iv (PROT_READ)
1149 const_iv (PROT_WRITE)
1150
1151 const_iv (MAP_PRIVATE)
1152 const_iv (MAP_SHARED)
1153 const_iv (MAP_FIXED)
1154 const_iv (MAP_ANONYMOUS)
1155
1156 /* linuxish */
1157 const_iv (MAP_LOCKED)
1158 const_iv (MAP_NORESERVE)
1159 const_iv (MAP_POPULATE)
1160 const_iv (MAP_NONBLOCK)
1161 const_iv (MAP_GROWSDOWN)
1162 const_iv (MAP_32BIT)
1163 const_iv (MAP_HUGETLB)
1164 const_iv (MAP_STACK)
1165
1166 const_iv (MREMAP_MAYMOVE)
1167 const_iv (MREMAP_FIXED)
1168
1169 const_iv (F_DUPFD_CLOEXEC)
1170
1171 const_iv (MSG_CMSG_CLOEXEC)
1172 const_iv (SOCK_CLOEXEC)
1173
1174 const_iv (F_OFD_GETLK)
1175 const_iv (F_OFD_SETLK)
1176 const_iv (F_OFD_GETLKW)
1177
1178 const_iv (FIFREEZE)
1179 const_iv (FITHAW)
1180 const_iv (FITRIM)
1181 const_iv (FICLONE)
1182 const_iv (FICLONERANGE)
1183 const_iv (FIDEDUPERANGE)
1184
1185 const_iv (FS_IOC_GETFLAGS)
1186 const_iv (FS_IOC_SETFLAGS)
1187 const_iv (FS_IOC_GETVERSION)
1188 const_iv (FS_IOC_SETVERSION)
1189 const_iv (FS_IOC_FIEMAP)
1190 const_iv (FS_IOC_FSGETXATTR)
1191 const_iv (FS_IOC_FSSETXATTR)
1192 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1193 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1194 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1195
1196 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1197
1198 const_iv (FS_SECRM_FL)
1199 const_iv (FS_UNRM_FL)
1200 const_iv (FS_COMPR_FL)
1201 const_iv (FS_SYNC_FL)
1202 const_iv (FS_IMMUTABLE_FL)
1203 const_iv (FS_APPEND_FL)
1204 const_iv (FS_NODUMP_FL)
1205 const_iv (FS_NOATIME_FL)
1206 const_iv (FS_DIRTY_FL)
1207 const_iv (FS_COMPRBLK_FL)
1208 const_iv (FS_NOCOMP_FL)
1209 const_iv (FS_ENCRYPT_FL)
1210 const_iv (FS_BTREE_FL)
1211 const_iv (FS_INDEX_FL)
1212 const_iv (FS_JOURNAL_DATA_FL)
1213 const_iv (FS_NOTAIL_FL)
1214 const_iv (FS_DIRSYNC_FL)
1215 const_iv (FS_TOPDIR_FL)
1216 const_iv (FS_FL_USER_MODIFIABLE)
1217
1218 const_iv (FS_XFLAG_REALTIME)
1219 const_iv (FS_XFLAG_PREALLOC)
1220 const_iv (FS_XFLAG_IMMUTABLE)
1221 const_iv (FS_XFLAG_APPEND)
1222 const_iv (FS_XFLAG_SYNC)
1223 const_iv (FS_XFLAG_NOATIME)
1224 const_iv (FS_XFLAG_NODUMP)
1225 const_iv (FS_XFLAG_RTINHERIT)
1226 const_iv (FS_XFLAG_PROJINHERIT)
1227 const_iv (FS_XFLAG_NOSYMLINKS)
1228 const_iv (FS_XFLAG_EXTSIZE)
1229 const_iv (FS_XFLAG_EXTSZINHERIT)
1230 const_iv (FS_XFLAG_NODEFRAG)
1231 const_iv (FS_XFLAG_FILESTREAM)
1232 const_iv (FS_XFLAG_DAX)
1233 const_iv (FS_XFLAG_HASATTR)
1234
1235 const_iv (FIEMAP_FLAG_SYNC)
1236 const_iv (FIEMAP_FLAG_XATTR)
1237 const_iv (FIEMAP_FLAGS_COMPAT)
1238 const_iv (FIEMAP_EXTENT_LAST)
1239 const_iv (FIEMAP_EXTENT_UNKNOWN)
1240 const_iv (FIEMAP_EXTENT_DELALLOC)
1241 const_iv (FIEMAP_EXTENT_ENCODED)
1242 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1243 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1244 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1245 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1246 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1247 const_iv (FIEMAP_EXTENT_MERGED)
1248 const_iv (FIEMAP_EXTENT_SHARED)
1249
1250 const_iv (SPLICE_F_MOVE)
1251 const_iv (SPLICE_F_NONBLOCK)
1252 const_iv (SPLICE_F_MORE)
1253 const_iv (SPLICE_F_GIFT)
1254
1255 const_iv (EFD_CLOEXEC)
1256 const_iv (EFD_NONBLOCK)
1257 const_iv (EFD_SEMAPHORE)
1258
1259 const_iv (CLOCK_REALTIME)
1260 const_iv (CLOCK_MONOTONIC)
1261 const_iv (CLOCK_BOOTTIME)
1262 const_iv (CLOCK_REALTIME_ALARM)
1263 const_iv (CLOCK_BOOTTIME_ALARM)
1264
1265 const_iv (TFD_NONBLOCK)
1266 const_iv (TFD_CLOEXEC)
1267
1268 const_iv (TFD_TIMER_ABSTIME)
1269 const_iv (TFD_TIMER_CANCEL_ON_SET)
1270
1271 /* these are libeio constants, and are independent of gendef0 */
1272 const_eio (SEEK_SET)
1273 const_eio (SEEK_CUR)
1274 const_eio (SEEK_END)
1275
1276 const_eio (MCL_FUTURE)
1277 const_eio (MCL_CURRENT)
1278 const_eio (MCL_ONFAULT)
1279
1280 const_eio (MS_ASYNC)
1281 const_eio (MS_INVALIDATE)
1282 const_eio (MS_SYNC)
1283
1284 const_eio (MT_MODIFY)
1285
1286 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1287 const_eio (SYNC_FILE_RANGE_WRITE)
1288 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1289
1290 const_eio (FALLOC_FL_KEEP_SIZE)
1291 const_eio (FALLOC_FL_PUNCH_HOLE)
1292 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1293 const_eio (FALLOC_FL_ZERO_RANGE)
1294 const_eio (FALLOC_FL_INSERT_RANGE)
1295 const_eio (FALLOC_FL_UNSHARE_RANGE)
1296
1297 const_eio (RENAME_NOREPLACE)
1298 const_eio (RENAME_EXCHANGE)
1299 const_eio (RENAME_WHITEOUT)
1300
1301 const_eio (READDIR_DENTS)
1302 const_eio (READDIR_DIRS_FIRST)
1303 const_eio (READDIR_STAT_ORDER)
1304 const_eio (READDIR_FOUND_UNKNOWN)
1305
1306 const_eio (DT_UNKNOWN)
1307 const_eio (DT_FIFO)
1308 const_eio (DT_CHR)
1309 const_eio (DT_DIR)
1310 const_eio (DT_BLK)
1311 const_eio (DT_REG)
1312 const_eio (DT_LNK)
1313 const_eio (DT_SOCK)
1314 const_eio (DT_WHT)
1315 };
1316
1317 aio_stash = gv_stashpv ("IO::AIO" , 1);
1318 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1319 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1320 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1321
1322 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1323 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1324
1325 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1326
1327 /* allocate dummy pipe fd for aio_close */
791 { 1328 {
792 off_t sbytes; 1329 int pipefd [2];
793 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
794 1330
795 if (res < 0 && sbytes) 1331 if (
796 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1332#ifdef _WIN32
797 res = sbytes; 1333 _pipe (pipefd, 1, _O_BINARY) < 0
1334#else
1335 pipe (pipefd) < 0
1336 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1337#endif
1338 || close (pipefd [1]) < 0
1339 )
1340 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1341
1342 close_fd = pipefd [0];
798 } 1343 }
799 1344
800# elif __hpux 1345 reinit ();
801 res = sendfile (ofd, ifd, offset, count, 0, 0);
802
803# elif __solaris
804 {
805 struct sendfilevec vec;
806 size_t sbytes;
807
808 vec.sfv_fd = ifd;
809 vec.sfv_flag = 0;
810 vec.sfv_off = offset;
811 vec.sfv_len = count;
812
813 res = sendfilev (ofd, &vec, 1, &sbytes);
814
815 if (res < 0 && sbytes)
816 res = sbytes;
817 }
818
819# endif
820#else
821 res = -1;
822 errno = ENOSYS;
823#endif
824
825 if (res < 0
826 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
827#if __solaris
828 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
829#endif
830 )
831 )
832 {
833 /* emulate sendfile. this is a major pain in the ass */
834 dBUF;
835
836 res = 0;
837
838 while (count)
839 {
840 ssize_t cnt;
841
842 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
843
844 if (cnt <= 0)
845 {
846 if (cnt && !res) res = -1;
847 break;
848 }
849
850 cnt = write (ofd, aio_buf, cnt);
851
852 if (cnt <= 0)
853 {
854 if (cnt && !res) res = -1;
855 break;
856 }
857
858 offset += cnt;
859 res += cnt;
860 count -= cnt;
861 }
862 }
863
864 return res;
865} 1346}
866 1347
867/* read a full directory */
868static void scandir_ (aio_req req, worker *self)
869{
870 DIR *dirp;
871 union
872 {
873 struct dirent d;
874 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
875 } *u;
876 struct dirent *entp;
877 char *name, *names;
878 int memlen = 4096;
879 int memofs = 0;
880 int res = 0;
881 int errorno;
882
883 LOCK (wrklock);
884 self->dirp = dirp = opendir (req->dataptr);
885 self->dbuf = u = malloc (sizeof (*u));
886 req->data2ptr = names = malloc (memlen);
887 UNLOCK (wrklock);
888
889 if (dirp && u && names)
890 for (;;)
891 {
892 errno = 0;
893 readdir_r (dirp, &u->d, &entp);
894
895 if (!entp)
896 break;
897
898 name = entp->d_name;
899
900 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
901 {
902 int len = strlen (name) + 1;
903
904 res++;
905
906 while (memofs + len > memlen)
907 {
908 memlen *= 2;
909 LOCK (wrklock);
910 req->data2ptr = names = realloc (names, memlen);
911 UNLOCK (wrklock);
912
913 if (!names)
914 break;
915 }
916
917 memcpy (names + memofs, name, len);
918 memofs += len;
919 }
920 }
921
922 if (errno)
923 res = -1;
924
925 req->result = res;
926}
927
928/*****************************************************************************/
929
930static void *aio_proc (void *thr_arg)
931{
932 aio_req req;
933 int type;
934 worker *self = (worker *)thr_arg;
935
936 do
937 {
938 LOCK (reqlock);
939
940 for (;;)
941 {
942 self->req = req = reqq_shift (&req_queue);
943
944 if (req)
945 break;
946
947 pthread_cond_wait (&reqwait, &reqlock);
948 }
949
950 UNLOCK (reqlock);
951
952 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954
955 if (!(req->flags & FLAG_CANCELLED))
956 switch (type)
957 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
962 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
963
964 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
965 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
966 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
967
968 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
969 case REQ_CLOSE: req->result = close (req->fd); break;
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
975
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break;
979
980 case REQ_BUSY:
981 {
982 struct timeval tv;
983
984 tv.tv_sec = req->fd;
985 tv.tv_usec = req->fd2;
986
987 req->result = select (0, 0, 0, 0, &tv);
988 }
989
990 case REQ_GROUP:
991 case REQ_NOP:
992 case REQ_QUIT:
993 break;
994
995 default:
996 req->result = ENOSYS;
997 break;
998 }
999
1000 req->errorno = errno;
1001
1002 LOCK (reslock);
1003
1004 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1);
1007
1008 self->req = 0;
1009 worker_clear (self);
1010
1011 UNLOCK (reslock);
1012 }
1013 while (type != REQ_QUIT);
1014
1015 LOCK (wrklock);
1016 worker_free (self);
1017 UNLOCK (wrklock);
1018
1019 return 0;
1020}
1021
1022/*****************************************************************************/
1023
1024static void atfork_prepare (void)
1025{
1026 LOCK (wrklock);
1027 LOCK (reqlock);
1028 LOCK (reslock);
1029#if !HAVE_PREADWRITE
1030 LOCK (preadwritelock);
1031#endif
1032#if !HAVE_READDIR_R
1033 LOCK (readdirlock);
1034#endif
1035}
1036
1037static void atfork_parent (void)
1038{
1039#if !HAVE_READDIR_R
1040 UNLOCK (readdirlock);
1041#endif
1042#if !HAVE_PREADWRITE
1043 UNLOCK (preadwritelock);
1044#endif
1045 UNLOCK (reslock);
1046 UNLOCK (reqlock);
1047 UNLOCK (wrklock);
1048}
1049
1050static void atfork_child (void)
1051{
1052 aio_req prv;
1053
1054 while (prv = reqq_shift (&req_queue))
1055 req_free (prv);
1056
1057 while (prv = reqq_shift (&res_queue))
1058 req_free (prv);
1059
1060 while (wrk_first.next != &wrk_first)
1061 {
1062 worker *wrk = wrk_first.next;
1063
1064 if (wrk->req)
1065 req_free (wrk->req);
1066
1067 worker_clear (wrk);
1068 worker_free (wrk);
1069 }
1070
1071 started = 0;
1072 nreqs = 0;
1073
1074 close (respipe [0]);
1075 close (respipe [1]);
1076 create_pipe ();
1077
1078 atfork_parent ();
1079}
1080
1081#define dREQ \
1082 aio_req req; \
1083 int req_pri = next_pri; \
1084 next_pri = DEFAULT_PRI + PRI_BIAS; \
1085 \
1086 if (SvOK (callback) && !SvROK (callback)) \
1087 croak ("callback must be undef or of reference type"); \
1088 \
1089 Newz (0, req, 1, aio_cb); \
1090 if (!req) \
1091 croak ("out of memory during aio_req allocation"); \
1092 \
1093 req->callback = newSVsv (callback); \
1094 req->pri = req_pri
1095
1096#define REQ_SEND \
1097 req_send (req); \
1098 \
1099 if (GIMME_V != G_VOID) \
1100 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1101
1102MODULE = IO::AIO PACKAGE = IO::AIO
1103
1104PROTOTYPES: ENABLE
1105
1106BOOT:
1107{
1108 HV *stash = gv_stashpv ("IO::AIO", 1);
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1112
1113 create_pipe ();
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1115}
1116
1117void 1348void
1118min_parallel (int nthreads) 1349reinit ()
1119 PROTOTYPE: $ 1350 PROTOTYPE:
1120 1351
1121void 1352void
1122max_parallel (int nthreads) 1353max_poll_reqs (unsigned int nreqs)
1123 PROTOTYPE: $
1124
1125int
1126max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 1354 PROTOTYPE: $
1128 CODE: 1355 CODE:
1129 RETVAL = max_outstanding; 1356 eio_set_max_poll_reqs (nreqs);
1357
1358void
1359max_poll_time (double nseconds)
1360 PROTOTYPE: $
1361 CODE:
1362 eio_set_max_poll_time (nseconds);
1363
1364void
1365min_parallel (unsigned int nthreads)
1366 PROTOTYPE: $
1367 CODE:
1368 eio_set_min_parallel (nthreads);
1369
1370void
1371max_parallel (unsigned int nthreads)
1372 PROTOTYPE: $
1373 CODE:
1374 eio_set_max_parallel (nthreads);
1375
1376void
1377max_idle (unsigned int nthreads)
1378 PROTOTYPE: $
1379 CODE:
1380 eio_set_max_idle (nthreads);
1381
1382void
1383idle_timeout (unsigned int seconds)
1384 PROTOTYPE: $
1385 CODE:
1386 eio_set_idle_timeout (seconds);
1387
1388void
1389max_outstanding (unsigned int maxreqs)
1390 PROTOTYPE: $
1391 CODE:
1130 max_outstanding = maxreqs; 1392 max_outstanding = maxreqs;
1131 OUTPUT:
1132 RETVAL
1133 1393
1134void 1394void
1135aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1395aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1136 SV * pathname
1137 int flags
1138 int mode
1139 SV * callback
1140 PROTOTYPE: $$$;$
1141 PPCODE: 1396 PPCODE:
1142{ 1397{
1143 dREQ; 1398 dREQ;
1144 1399
1145 req->type = REQ_OPEN; 1400 req->type = EIO_WD_OPEN;
1146 req->data = newSVsv (pathname); 1401 req_set_path1 (req, pathname);
1147 req->dataptr = SvPVbyte_nolen (req->data);
1148 req->fd = flags;
1149 req->mode = mode;
1150 1402
1151 REQ_SEND; 1403 REQ_SEND;
1152} 1404}
1153 1405
1154void 1406void
1407aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1408 PPCODE:
1409{
1410 dREQ;
1411
1412 req->type = EIO_OPEN;
1413 req_set_path1 (req, pathname);
1414 req->int1 = flags;
1415 req->int2 = mode;
1416
1417 REQ_SEND;
1418}
1419
1420void
1155aio_close (fh,callback=&PL_sv_undef) 1421aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1156 SV * fh
1157 SV * callback
1158 PROTOTYPE: $;$
1159 ALIAS: 1422 ALIAS:
1160 aio_close = REQ_CLOSE
1161 aio_fsync = REQ_FSYNC 1423 aio_fsync = EIO_FSYNC
1162 aio_fdatasync = REQ_FDATASYNC 1424 aio_fdatasync = EIO_FDATASYNC
1425 aio_syncfs = EIO_SYNCFS
1163 PPCODE: 1426 PPCODE:
1164{ 1427{
1428 int fd = s_fileno_croak (fh, 0);
1165 dREQ; 1429 dREQ;
1166 1430
1167 req->type = ix; 1431 req->type = ix;
1168 req->fh = newSVsv (fh); 1432 req->sv1 = newSVsv (fh);
1169 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1433 req->int1 = fd;
1170 1434
1171 REQ_SEND (req); 1435 REQ_SEND;
1172} 1436}
1173 1437
1174void 1438void
1439aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1440 PPCODE:
1441{
1442 int fd = s_fileno_croak (fh, 0);
1443 dREQ;
1444
1445 req->type = EIO_SYNC_FILE_RANGE;
1446 req->sv1 = newSVsv (fh);
1447 req->int1 = fd;
1448 req->offs = offset;
1449 req->size = nbytes;
1450 req->int2 = flags;
1451
1452 REQ_SEND;
1453}
1454
1455void
1456aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1457 PPCODE:
1458{
1459 int fd = s_fileno_croak (fh, 0);
1460 dREQ;
1461
1462 req->type = EIO_FALLOCATE;
1463 req->sv1 = newSVsv (fh);
1464 req->int1 = fd;
1465 req->int2 = mode;
1466 req->offs = offset;
1467 req->size = len;
1468
1469 REQ_SEND;
1470}
1471
1472void
1473aio_close (SV *fh, SV *callback = &PL_sv_undef)
1474 PPCODE:
1475{
1476 int fd = s_fileno_croak (fh, 0);
1477 dREQ;
1478
1479 req->type = EIO_DUP2;
1480 req->int1 = close_fd;
1481 req->sv2 = newSVsv (fh);
1482 req->int2 = fd;
1483
1484 REQ_SEND;
1485}
1486
1487void
1488aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1489 PPCODE:
1490{
1491 int fd = s_fileno_croak (fh, 0);
1492 dREQ;
1493
1494 req->type = EIO_SEEK;
1495 req->sv1 = newSVsv (fh);
1496 req->int1 = fd;
1497 req->offs = SvVAL64 (offset);
1498 req->int2 = whence;
1499
1500 REQ_SEND;
1501}
1502
1503void
1175aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1504aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 UV length
1179 SV * data
1180 UV dataoffset
1181 SV * callback
1182 ALIAS: 1505 ALIAS:
1183 aio_read = REQ_READ 1506 aio_read = EIO_READ
1184 aio_write = REQ_WRITE 1507 aio_write = EIO_WRITE
1185 PROTOTYPE: $$$$$;$
1186 PPCODE: 1508 PPCODE:
1187{ 1509{
1188 aio_req req;
1189 STRLEN svlen; 1510 STRLEN svlen;
1511 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1190 char *svptr = SvPVbyte (data, svlen); 1512 char *svptr = SvPVbyte (data, svlen);
1191 1513 UV len = SvUV (length);
1192 SvUPGRADE (data, SVt_PV);
1193 SvPOK_on (data);
1194 1514
1195 if (dataoffset < 0) 1515 if (dataoffset < 0)
1196 dataoffset += svlen; 1516 dataoffset += svlen;
1197 1517
1198 if (dataoffset < 0 || dataoffset > svlen) 1518 if (dataoffset < 0 || dataoffset > svlen)
1199 croak ("data offset outside of string"); 1519 croak ("dataoffset outside of data scalar");
1200 1520
1201 if (ix == REQ_WRITE) 1521 if (ix == EIO_WRITE)
1202 { 1522 {
1203 /* write: check length and adjust. */ 1523 /* write: check length and adjust. */
1204 if (length < 0 || length + dataoffset > svlen) 1524 if (!SvOK (length) || len + dataoffset > svlen)
1205 length = svlen - dataoffset; 1525 len = svlen - dataoffset;
1206 } 1526 }
1207 else 1527 else
1208 { 1528 {
1209 /* read: grow scalar as necessary */ 1529 /* read: check type and grow scalar as necessary */
1530 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210 svptr = SvGROW (data, length + dataoffset); 1531 svptr = sv_grow (data, len + dataoffset + 1);
1532 else if (SvCUR (data) < len + dataoffset)
1533 croak ("length + dataoffset outside of scalar, and cannot grow");
1211 } 1534 }
1212
1213 if (length < 0)
1214 croak ("length must not be negative");
1215 1535
1216 { 1536 {
1217 dREQ; 1537 dREQ;
1218 1538
1219 req->type = ix; 1539 req->type = ix;
1220 req->fh = newSVsv (fh); 1540 req->sv1 = newSVsv (fh);
1221 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1541 req->int1 = fd;
1222 : IoOFP (sv_2io (fh))); 1542 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223 req->offset = offset; 1543 req->size = len;
1224 req->length = length;
1225 req->data = SvREFCNT_inc (data); 1544 req->sv2 = SvREFCNT_inc (data);
1226 req->dataptr = (char *)svptr + dataoffset; 1545 req->ptr2 = (char *)svptr + dataoffset;
1546 req->stroffset = dataoffset;
1227 1547
1228 if (!SvREADONLY (data)) 1548 if (!SvREADONLY (data))
1229 { 1549 {
1230 SvREADONLY_on (data); 1550 SvREADONLY_on (data);
1231 req->data2ptr = (void *)data; 1551 req->flags |= FLAG_SV2_RO_OFF;
1232 } 1552 }
1233 1553
1234 REQ_SEND; 1554 REQ_SEND;
1235 } 1555 }
1236} 1556}
1237 1557
1238void 1558void
1239aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1559aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1240 SV * out_fh 1560 ALIAS:
1241 SV * in_fh 1561 aio_ioctl = EIO_IOCTL
1242 UV in_offset 1562 aio_fcntl = EIO_FCNTL
1243 UV length
1244 SV * callback
1245 PROTOTYPE: $$$$;$
1246 PPCODE: 1563 PPCODE:
1247{ 1564{
1248 dREQ; 1565 int fd = s_fileno_croak (fh, 0);
1566 char *svptr;
1249 1567
1250 req->type = REQ_SENDFILE; 1568 if (SvPOK (arg) || !SvNIOK (arg))
1251 req->fh = newSVsv (out_fh);
1252 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1253 req->fh2 = newSVsv (in_fh);
1254 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1255 req->offset = in_offset;
1256 req->length = length;
1257
1258 REQ_SEND;
1259}
1260
1261void
1262aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1263 SV * fh
1264 UV offset
1265 IV length
1266 SV * callback
1267 PROTOTYPE: $$$;$
1268 PPCODE:
1269{
1270 dREQ;
1271
1272 req->type = REQ_READAHEAD;
1273 req->fh = newSVsv (fh);
1274 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1275 req->offset = offset;
1276 req->length = length;
1277
1278 REQ_SEND;
1279}
1280
1281void
1282aio_stat (fh_or_path,callback=&PL_sv_undef)
1283 SV * fh_or_path
1284 SV * callback
1285 ALIAS:
1286 aio_stat = REQ_STAT
1287 aio_lstat = REQ_LSTAT
1288 PPCODE:
1289{
1290 dREQ;
1291
1292 New (0, req->statdata, 1, Stat_t);
1293 if (!req->statdata)
1294 { 1569 {
1295 req_free (req); 1570 STRLEN svlen;
1296 croak ("out of memory during aio_req->statdata allocation"); 1571 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1297 } 1572#ifdef IOCPARM_LEN
1573 STRLEN need = IOCPARM_LEN (request);
1574#else
1575 STRLEN need = 256;
1576#endif
1298 1577
1299 if (SvPOK (fh_or_path)) 1578 if (svlen < need)
1300 { 1579 svptr = SvGROW (arg, need);
1301 req->type = ix;
1302 req->data = newSVsv (fh_or_path);
1303 req->dataptr = SvPVbyte_nolen (req->data);
1304 } 1580 }
1305 else 1581 else
1582 svptr = (char *)SvIV (arg);
1583
1306 { 1584 {
1585 dREQ;
1586
1307 req->type = REQ_FSTAT; 1587 req->type = ix;
1308 req->fh = newSVsv (fh_or_path); 1588 req->sv1 = newSVsv (fh);
1309 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1589 req->int1 = fd;
1590 req->int2 = (long)request;
1591 req->sv2 = SvREFCNT_inc (arg);
1592 req->ptr2 = svptr;
1593
1594 REQ_SEND;
1310 } 1595 }
1596}
1597
1598void
1599aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1600 ALIAS:
1601 aio_readlink = EIO_READLINK
1602 aio_realpath = EIO_REALPATH
1603 PPCODE:
1604{
1605 dREQ;
1606
1607 req->type = ix;
1608 req_set_path1 (req, pathname);
1311 1609
1312 REQ_SEND; 1610 REQ_SEND;
1313} 1611}
1314 1612
1315void 1613void
1316aio_unlink (pathname,callback=&PL_sv_undef) 1614aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1317 SV * pathname 1615 PPCODE:
1318 SV * callback 1616{
1617 int ifd = s_fileno_croak (in_fh , 0);
1618 int ofd = s_fileno_croak (out_fh, 1);
1619 dREQ;
1620
1621 req->type = EIO_SENDFILE;
1622 req->sv1 = newSVsv (out_fh);
1623 req->int1 = ofd;
1624 req->sv2 = newSVsv (in_fh);
1625 req->int2 = ifd;
1626 req->offs = in_offset;
1627 req->size = length;
1628
1629 REQ_SEND;
1630}
1631
1632void
1633aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 int fd = s_fileno_croak (fh, 0);
1637 dREQ;
1638
1639 req->type = EIO_READAHEAD;
1640 req->sv1 = newSVsv (fh);
1641 req->int1 = fd;
1642 req->offs = offset;
1643 req->size = length;
1644
1645 REQ_SEND;
1646}
1647
1648void
1649aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1319 ALIAS: 1650 ALIAS:
1651 aio_stat = EIO_STAT
1652 aio_lstat = EIO_LSTAT
1653 aio_statvfs = EIO_STATVFS
1654 PPCODE:
1655{
1656 dREQ;
1657
1658 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1659
1660 REQ_SEND;
1661}
1662
1663void
1664st_xtime ()
1665 ALIAS:
1666 st_atime = 0x01
1667 st_mtime = 0x02
1668 st_ctime = 0x04
1669 st_btime = 0x08
1670 st_xtime = 0x0f
1671 PPCODE:
1672 EXTEND (SP, 4);
1673 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1674 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1675 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1676 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1677
1678void
1679st_xtimensec ()
1680 ALIAS:
1681 st_atimensec = 0x01
1682 st_mtimensec = 0x02
1683 st_ctimensec = 0x04
1684 st_btimensec = 0x08
1685 st_xtimensec = 0x0f
1686 st_btimesec = 0x10
1687 st_gen = 0x20
1688 PPCODE:
1689 EXTEND (SP, 4);
1690 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1691 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1692 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1693 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1694 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1695 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1696
1697UV
1698major (UV dev)
1699 ALIAS:
1700 minor = 1
1701 CODE:
1702 RETVAL = ix ? minor (dev) : major (dev);
1703 OUTPUT:
1704 RETVAL
1705
1706UV
1707makedev (UV maj, UV min)
1708 CODE:
1709 RETVAL = makedev (maj, min);
1710 OUTPUT:
1711 RETVAL
1712
1713void
1714aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1715 PPCODE:
1716{
1717 dREQ;
1718
1719 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1720 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1721 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1722
1723 REQ_SEND;
1724}
1725
1726void
1727aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1728 PPCODE:
1729{
1730 dREQ;
1731
1732 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1733 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1734
1735 REQ_SEND;
1736}
1737
1738void
1739aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1740 PPCODE:
1741{
1742 dREQ;
1743
1744 req->int2 = mode;
1745 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1746
1747 REQ_SEND;
1748}
1749
1750void
1751aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1752 PPCODE:
1753{
1754 dREQ;
1755
1756 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1757 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1758 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1759
1760 REQ_SEND;
1761}
1762
1763void
1764aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 dREQ;
1768
1769 req->type = EIO_READDIR;
1770 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1771
1772 if (flags & EIO_READDIR_DENTS)
1773 req->int1 |= EIO_READDIR_CUSTOM2;
1774
1775 req_set_path1 (req, pathname);
1776
1777 REQ_SEND;
1778}
1779
1780void
1781aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1782 PPCODE:
1783{
1784 dREQ;
1785
1786 req->type = EIO_MKDIR;
1787 req->int2 = mode;
1788 req_set_path1 (req, pathname);
1789
1790 REQ_SEND;
1791}
1792
1793void
1794aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1795 ALIAS:
1320 aio_unlink = REQ_UNLINK 1796 aio_unlink = EIO_UNLINK
1321 aio_rmdir = REQ_RMDIR 1797 aio_rmdir = EIO_RMDIR
1322 aio_readdir = REQ_READDIR 1798 aio_readdir = EIO_READDIR
1323 PPCODE: 1799 PPCODE:
1324{ 1800{
1325 dREQ; 1801 dREQ;
1326 1802
1327 req->type = ix; 1803 req->type = ix;
1328 req->data = newSVsv (pathname); 1804 req_set_path1 (req, pathname);
1329 req->dataptr = SvPVbyte_nolen (req->data); 1805
1330
1331 REQ_SEND; 1806 REQ_SEND;
1332} 1807}
1333 1808
1334void 1809void
1335aio_link (oldpath,newpath,callback=&PL_sv_undef) 1810aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1336 SV * oldpath
1337 SV * newpath
1338 SV * callback
1339 ALIAS: 1811 ALIAS:
1340 aio_link = REQ_LINK 1812 aio_link = EIO_LINK
1341 aio_symlink = REQ_SYMLINK 1813 aio_symlink = EIO_SYMLINK
1342 aio_rename = REQ_RENAME 1814 aio_rename = EIO_RENAME
1343 PPCODE: 1815 PPCODE:
1344{ 1816{
1817 eio_wd wd2 = 0;
1345 dREQ; 1818 dREQ;
1346 1819
1347 req->type = ix; 1820 req->type = ix;
1348 req->fh = newSVsv (oldpath); 1821 req_set_path1 (req, oldpath);
1349 req->data2ptr = SvPVbyte_nolen (req->fh); 1822 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1350 req->data = newSVsv (newpath); 1823 req->int3 = (long)wd2;
1351 req->dataptr = SvPVbyte_nolen (req->data);
1352 1824
1353 REQ_SEND; 1825 REQ_SEND;
1354} 1826}
1355 1827
1356void 1828void
1357aio_busy (delay,callback=&PL_sv_undef) 1829aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1358 double delay
1359 SV * callback
1360 PPCODE: 1830 PPCODE:
1361{ 1831{
1832 eio_wd wd2 = 0;
1362 dREQ; 1833 dREQ;
1363 1834
1364 req->type = REQ_BUSY; 1835 req->type = EIO_RENAME;
1365 req->fd = delay < 0. ? 0 : delay; 1836 req_set_path1 (req, oldpath);
1366 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1837 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1367 1838 req->int2 = flags;
1839 req->int3 = (long)wd2;
1840
1368 REQ_SEND; 1841 REQ_SEND;
1369} 1842}
1370 1843
1371void 1844void
1845aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1846 PPCODE:
1847{
1848 dREQ;
1849
1850 req->type = EIO_MKNOD;
1851 req->int2 = (mode_t)mode;
1852 req->offs = dev;
1853 req_set_path1 (req, pathname);
1854
1855 REQ_SEND;
1856}
1857
1858void
1859aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1860 ALIAS:
1861 aio_mtouch = EIO_MTOUCH
1862 aio_msync = EIO_MSYNC
1863 PPCODE:
1864{
1865 STRLEN svlen;
1866 char *svptr = SvPVbyte (data, svlen);
1867 UV len = SvUV (length);
1868
1869 if (flags < 0)
1870 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1871
1872 if (offset < 0)
1873 offset += svlen;
1874
1875 if (offset < 0 || offset > svlen)
1876 croak ("offset outside of scalar");
1877
1878 if (!SvOK (length) || len + offset > svlen)
1879 len = svlen - offset;
1880
1881 {
1882 dREQ;
1883
1884 req->type = ix;
1885 req->sv2 = SvREFCNT_inc (data);
1886 req->ptr2 = (char *)svptr + offset;
1887 req->size = len;
1888 req->int1 = flags;
1889
1890 REQ_SEND;
1891 }
1892}
1893
1894void
1895aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1896 PPCODE:
1897{
1898 STRLEN svlen;
1899 char *svptr = SvPVbyte (data, svlen);
1900 UV len = SvUV (length);
1901
1902 if (offset < 0)
1903 offset += svlen;
1904
1905 if (offset < 0 || offset > svlen)
1906 croak ("offset outside of scalar");
1907
1908 if (!SvOK (length) || len + offset > svlen)
1909 len = svlen - offset;
1910
1911 {
1912 dREQ;
1913
1914 req->type = EIO_MLOCK;
1915 req->sv2 = SvREFCNT_inc (data);
1916 req->ptr2 = (char *)svptr + offset;
1917 req->size = len;
1918
1919 REQ_SEND;
1920 }
1921}
1922
1923void
1924aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1925 PPCODE:
1926{
1927 dREQ;
1928
1929 req->type = EIO_MLOCKALL;
1930 req->int1 = flags;
1931
1932 REQ_SEND;
1933}
1934
1935void
1936aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1937 PPCODE:
1938{
1939 int fd = s_fileno_croak (fh, 0);
1940 dREQ;
1941
1942 req->type = EIO_CUSTOM;
1943 req->sv1 = newSVsv (fh);
1944 req->int1 = fd;
1945
1946 req->feed = fiemap;
1947#if HAVE_FIEMAP
1948 /* keep our fingers crossed that the next two types are 64 bit */
1949 req->offs = start;
1950 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1951 req->int2 = flags;
1952 req->int3 = SvOK (count) ? SvIV (count) : -1;
1953#endif
1954
1955 REQ_SEND;
1956}
1957
1958void
1959aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1960 PPCODE:
1961{
1962 char *svptr = 0;
1963
1964 sv_clear_foreign (data);
1965
1966 if (length) /* known length, directly read into scalar */
1967 {
1968 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1969 svptr = sv_grow (data, length + 1);
1970 else if (SvCUR (data) < length)
1971 croak ("length outside of scalar, and cannot grow");
1972 else
1973 svptr = SvPVbyte_nolen (data);
1974 }
1975
1976 {
1977 dREQ;
1978
1979 req->type = EIO_SLURP;
1980 req_set_path1 (req, pathname);
1981 req->offs = offset;
1982 req->size = length;
1983 req->sv2 = SvREFCNT_inc (data);
1984 req->ptr2 = svptr;
1985
1986 if (!SvREADONLY (data))
1987 {
1988 SvREADONLY_on (data);
1989 req->flags |= FLAG_SV2_RO_OFF;
1990 }
1991
1992 REQ_SEND;
1993 }
1994}
1995
1996void
1997aio_busy (double delay, SV *callback = &PL_sv_undef)
1998 PPCODE:
1999{
2000 dREQ;
2001
2002 req->type = EIO_BUSY;
2003 req->nv1 = delay < 0. ? 0. : delay;
2004
2005 REQ_SEND;
2006}
2007
2008void
1372aio_group (callback=&PL_sv_undef) 2009aio_group (SV *callback = &PL_sv_undef)
1373 SV * callback 2010 PPCODE:
2011{
2012 dREQ;
2013
2014 req->type = EIO_GROUP;
2015
2016 PUTBACK;
2017 req_submit (req);
2018 SPAGAIN;
2019
2020 XPUSHs (req_sv (req, aio_grp_stash));
2021}
2022
2023void
2024aio_nop (SV *callback = &PL_sv_undef)
2025 ALIAS:
2026 aio_nop = EIO_NOP
2027 aio_sync = EIO_SYNC
2028 PPCODE:
2029{
2030 dREQ;
2031
2032 req->type = ix;
2033
2034 REQ_SEND;
2035}
2036
2037int
2038aioreq_pri (int pri = NO_INIT)
2039 CODE:
2040 RETVAL = next_pri;
2041 if (items > 0)
2042 {
2043 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2044 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2045 next_pri = pri;
2046 }
2047 OUTPUT:
2048 RETVAL
2049
2050void
2051aioreq_nice (int nice = 0)
2052 CODE:
2053 nice = next_pri - nice;
2054 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2055 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2056 next_pri = nice;
2057
2058void
2059flush ()
2060 CODE:
2061 while (eio_nreqs ())
2062 {
2063 poll_wait ();
2064 poll_cb ();
2065 }
2066
2067int
2068poll ()
2069 CODE:
2070 poll_wait ();
2071 RETVAL = poll_cb ();
2072 OUTPUT:
2073 RETVAL
2074
2075int
2076poll_fileno ()
2077 CODE:
2078 RETVAL = s_epipe_fd (&respipe);
2079 OUTPUT:
2080 RETVAL
2081
2082int
2083poll_cb (...)
2084 PROTOTYPE:
2085 CODE:
2086 RETVAL = poll_cb ();
2087 OUTPUT:
2088 RETVAL
2089
2090void
2091poll_wait ()
2092 CODE:
2093 poll_wait ();
2094
2095int
2096nreqs ()
2097 CODE:
2098 RETVAL = eio_nreqs ();
2099 OUTPUT:
2100 RETVAL
2101
2102int
2103nready ()
2104 CODE:
2105 RETVAL = eio_nready ();
2106 OUTPUT:
2107 RETVAL
2108
2109int
2110npending ()
2111 CODE:
2112 RETVAL = eio_npending ();
2113 OUTPUT:
2114 RETVAL
2115
2116int
2117nthreads ()
2118 CODE:
2119 RETVAL = eio_nthreads ();
2120 OUTPUT:
2121 RETVAL
2122
2123int
2124fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2125 CODE:
2126 RETVAL = posix_fadvise (fh, offset, length, advice);
2127 OUTPUT:
2128 RETVAL
2129
2130IV
2131sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2132 CODE:
2133 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2134 OUTPUT:
2135 RETVAL
2136
2137void
2138mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2139 PPCODE:
2140 sv_clear_foreign (scalar);
2141{
2142 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2143 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2144 if (addr == (void *)-1)
2145 XSRETURN_NO;
2146
2147 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2148
2149 if (!(prot & PROT_WRITE))
2150 SvREADONLY_on (scalar);
2151
2152 XSRETURN_YES;
2153}
2154
2155void
2156munmap (SV *scalar)
2157 CODE:
2158 sv_clear_foreign (scalar);
2159
2160SV *
2161mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2162 CODE:
2163{
2164 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2165 void *new;
2166
2167 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2168 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2169
2170 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2171
2172 RETVAL = &PL_sv_no;
2173
2174 if (new != (void *)-1)
2175 {
2176 RETVAL = new == (void *)mg->mg_ptr
2177 ? newSVpvn ("0 but true", 10)
2178 : &PL_sv_yes;
2179
2180 mg->mg_ptr = (char *)new;
2181 mg->mg_obj = (SV *)new_length;
2182
2183 SvPVX (scalar) = mg->mg_ptr;
2184 SvCUR_set (scalar, new_length);
2185 }
2186}
2187 OUTPUT:
2188 RETVAL
2189
2190int
2191madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2192 ALIAS:
2193 mprotect = 1
2194 CODE:
2195{
2196 STRLEN svlen;
2197 void *addr = SvPVbyte (scalar, svlen);
2198 STRLEN len = SvUV (length);
2199
2200 if (offset < 0)
2201 offset += svlen;
2202
2203 if (offset < 0 || offset > svlen)
2204 croak ("offset outside of scalar");
2205
2206 if (!SvOK (length) || len + offset > svlen)
2207 len = svlen - offset;
2208
2209 addr = (void *)(((intptr_t)addr) + offset);
2210 eio_page_align (&addr, &len);
2211
2212 switch (ix)
2213 {
2214 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2215 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2216 }
2217}
2218 OUTPUT:
2219 RETVAL
2220
2221int
2222munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2223 CODE:
2224{
2225 STRLEN svlen;
2226 void *addr = SvPVbyte (scalar, svlen);
2227 size_t len = SvUV (length);
2228
2229 if (offset < 0)
2230 offset += svlen;
2231
2232 if (offset < 0 || offset > svlen)
2233 croak ("offset outside of scalar");
2234
2235 if (!SvOK (length) || len + offset > svlen)
2236 len = svlen - offset;
2237
2238 addr = (void *)(((intptr_t)addr) + offset);
2239 eio_page_align (&addr, &len);
2240#if _POSIX_MEMLOCK_RANGE
2241 RETVAL = munlock (addr, len);
2242#else
2243 RETVAL = EIO_ENOSYS ();
2244#endif
2245}
2246 OUTPUT:
2247 RETVAL
2248
2249int
2250munlockall ()
2251 CODE:
2252#if _POSIX_MEMLOCK
2253 munlockall ();
2254#else
2255 RETVAL = EIO_ENOSYS ();
2256#endif
2257 OUTPUT:
2258 RETVAL
2259
2260int
2261splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2262 CODE:
2263{
2264#if HAVE_LINUX_SPLICE
2265 loff_t off_in_, off_out_;
2266 RETVAL = splice (
2267 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2268 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2269 length, flags
2270 );
2271#else
2272 RETVAL = EIO_ENOSYS ();
2273#endif
2274}
2275 OUTPUT:
2276 RETVAL
2277
2278int
2279tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2280 CODE:
2281#if HAVE_LINUX_SPLICE
2282 RETVAL = tee (rfh, wfh, length, flags);
2283#else
2284 RETVAL = EIO_ENOSYS ();
2285#endif
2286 OUTPUT:
2287 RETVAL
2288
2289int
2290pipesize (aio_rfd rfh, int new_size = -1)
2291 PROTOTYPE: $;$
2292 CODE:
2293#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2294 if (new_size >= 0)
2295 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2296 else
2297 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2298#else
2299 errno = ENOSYS;
2300 RETVAL = -1;
2301#endif
2302 OUTPUT:
2303 RETVAL
2304
2305void
2306pipe2 (int flags = 0)
1374 PROTOTYPE: ;$ 2307 PROTOTYPE: ;$
1375 PPCODE: 2308 PPCODE:
1376{ 2309{
1377 dREQ; 2310 int fd[2];
2311 int res;
1378 2312
1379 req->type = REQ_GROUP; 2313 if (flags)
1380 req_send (req); 2314#if HAVE_PIPE2
2315 res = pipe2 (fd, flags);
2316#else
2317 res = (errno = ENOSYS, -1);
2318#endif
2319 else
2320 res = pipe (fd);
1381 2321
1382 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2322 if (!res)
2323 {
2324 EXTEND (SP, 2);
2325 PUSHs (newmortalFH (fd[0], O_RDONLY));
2326 PUSHs (newmortalFH (fd[1], O_WRONLY));
2327 }
1383} 2328}
1384 2329
1385void 2330void
1386aio_nop (callback=&PL_sv_undef) 2331eventfd (unsigned int initval = 0, int flags = 0)
1387 SV * callback
1388 PPCODE: 2332 PPCODE:
1389{ 2333{
1390 dREQ; 2334 int fd;
1391 2335#if HAVE_EVENTFD
1392 req->type = REQ_NOP; 2336 fd = eventfd (initval, flags);
1393 2337#else
1394 REQ_SEND; 2338 fd = (errno = ENOSYS, -1);
2339#endif
2340
2341 XPUSHs (newmortalFH (fd, O_RDWR));
1395} 2342}
1396 2343
1397void 2344void
1398aioreq_pri (int pri = DEFAULT_PRI) 2345timerfd_create (int clockid, int flags = 0)
1399 CODE: 2346 PPCODE:
1400 if (pri < PRI_MIN) pri = PRI_MIN; 2347{
1401 if (pri > PRI_MAX) pri = PRI_MAX; 2348 int fd;
1402 next_pri = pri + PRI_BIAS; 2349#if HAVE_TIMERFD
2350 fd = timerfd_create (clockid, flags);
2351#else
2352 fd = (errno = ENOSYS, -1);
2353#endif
2354
2355 XPUSHs (newmortalFH (fd, O_RDWR));
2356}
1403 2357
1404void 2358void
1405aioreq_nice (int nice = 0) 2359timerfd_settime (SV *fh, int flags, NV interval, NV value)
1406 CODE: 2360 PPCODE:
1407 nice = next_pri - nice; 2361{
1408 if (nice < PRI_MIN) nice = PRI_MIN; 2362 int fd = s_fileno_croak (fh, 0);
1409 if (nice > PRI_MAX) nice = PRI_MAX; 2363#if HAVE_TIMERFD
1410 next_pri = nice + PRI_BIAS; 2364 int res;
2365 struct itimerspec its, ots;
1411 2366
2367 ts_set (&its.it_interval, interval);
2368 ts_set (&its.it_value , value);
2369 res = timerfd_settime (fd, flags, &its, &ots);
2370
2371 if (!res)
2372 {
2373 EXTEND (SP, 2);
2374 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2375 PUSHs (newSVnv (ts_get (&ots.it_value)));
2376 }
2377#else
2378 errno = ENOSYS;
2379#endif
2380}
2381
1412void 2382void
1413flush () 2383timerfd_gettime (SV *fh)
1414 PROTOTYPE: 2384 PPCODE:
2385{
2386 int fd = s_fileno_croak (fh, 0);
2387#if HAVE_TIMERFD
2388 int res;
2389 struct itimerspec ots;
2390 res = timerfd_gettime (fd, &ots);
2391
2392 if (!res)
2393 {
2394 EXTEND (SP, 2);
2395 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2396 PUSHs (newSVnv (ts_get (&ots.it_value)));
2397 }
2398#else
2399 errno = ENOSYS;
2400#endif
2401}
2402
2403UV
2404get_fdlimit ()
1415 CODE: 2405 CODE:
1416 while (nreqs) 2406#if HAVE_RLIMITS
2407 struct rlimit rl;
2408 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2409 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2410#endif
2411 XSRETURN_UNDEF;
2412 OUTPUT:
2413 RETVAL
2414
2415void
2416min_fdlimit (UV limit = 0x7fffffffU)
2417 CODE:
2418{
2419#if HAVE_RLIMITS
2420 struct rlimit rl;
2421 rlim_t orig_rlim_max;
2422 UV bit;
2423
2424 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2425 goto fail;
2426
2427 if (rl.rlim_cur == RLIM_INFINITY)
2428 XSRETURN_YES;
2429
2430 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2431
2432 if (rl.rlim_cur < limit)
1417 { 2433 {
1418 poll_wait (); 2434 rl.rlim_cur = limit;
1419 poll_cb (0); 2435
2436 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2437 rl.rlim_max = rl.rlim_cur;
1420 } 2438 }
1421 2439
1422void 2440 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
1423poll() 2441 XSRETURN_YES;
1424 PROTOTYPE: 2442
2443 if (errno == EPERM)
2444 {
2445 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2446 /* our limit overflows a system-wide limit */
2447 /* try an adaptive algorithm, but do not lower the hardlimit */
2448 rl.rlim_max = 0;
2449 for (bit = 0x40000000U; bit; bit >>= 1)
2450 {
2451 rl.rlim_max |= bit;
2452 rl.rlim_cur = rl.rlim_max;
2453
2454 /* nevr decrease the hard limit */
2455 if (rl.rlim_max < orig_rlim_max)
2456 break;
2457
2458 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2459 rl.rlim_max &= ~bit; /* too high, remove bit again */
2460 }
2461
2462 /* now, raise the soft limit to the max permitted */
2463 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2464 {
2465 rl.rlim_cur = rl.rlim_max;
2466 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2467 errno = EPERM;
2468 }
2469 }
2470#endif
2471 fail:
2472 XSRETURN_UNDEF;
2473}
2474
2475void _on_next_submit (SV *cb)
1425 CODE: 2476 CODE:
1426 if (nreqs) 2477 SvREFCNT_dec (on_next_submit);
1427 { 2478 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1428 poll_wait ();
1429 poll_cb (0);
1430 }
1431 2479
1432int 2480PROTOTYPES: DISABLE
1433poll_fileno() 2481
1434 PROTOTYPE: 2482MODULE = IO::AIO PACKAGE = IO::AIO::WD
2483
2484BOOT:
2485{
2486 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2487 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2488}
2489
2490void
2491DESTROY (SV *self)
1435 CODE: 2492 CODE:
1436 RETVAL = respipe [0]; 2493{
1437 OUTPUT: 2494 aio_wd wd = SvAIO_WD (self);
1438 RETVAL 2495#if HAVE_AT
1439 2496 {
1440int 2497 SV *callback = &PL_sv_undef;
1441poll_cb(...) 2498 dREQ; /* clobbers next_pri :/ */
1442 PROTOTYPE: 2499 next_pri = req->pri; /* restore next_pri */
1443 CODE: 2500 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1444 RETVAL = poll_cb (0); 2501 req->type = EIO_WD_CLOSE;
1445 OUTPUT: 2502 req->wd = wd;
1446 RETVAL 2503 REQ_SEND;
1447 2504 }
1448int 2505#else
1449poll_some(int max = 0) 2506 eio_wd_close_sync (wd);
1450 PROTOTYPE: $ 2507#endif
1451 CODE: 2508}
1452 RETVAL = poll_cb (max);
1453 OUTPUT:
1454 RETVAL
1455
1456void
1457poll_wait()
1458 PROTOTYPE:
1459 CODE:
1460 if (nreqs)
1461 poll_wait ();
1462
1463int
1464nreqs()
1465 PROTOTYPE:
1466 CODE:
1467 RETVAL = nreqs;
1468 OUTPUT:
1469 RETVAL
1470
1471PROTOTYPES: DISABLE
1472 2509
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2510MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 2511
1475void 2512void
1476cancel (aio_req_ornot req) 2513cancel (aio_req_ornot req)
1477 CODE: 2514 CODE:
1478 req_cancel (req); 2515 eio_cancel (req);
1479 2516
1480void 2517void
1481cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2518cb (aio_req_ornot req, SV *callback = NO_INIT)
1482 CODE: 2519 PPCODE:
2520{
2521 if (GIMME_V != G_VOID)
2522 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2523
2524 if (items > 1)
2525 {
2526 SV *cb_cv = get_cb (callback);
2527
1483 SvREFCNT_dec (req->callback); 2528 SvREFCNT_dec (req->callback);
1484 req->callback = newSVsv (callback); 2529 req->callback = SvREFCNT_inc (cb_cv);
2530 }
2531}
1485 2532
1486MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2533MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1487 2534
1488void 2535void
1489add (aio_req grp, ...) 2536add (aio_req grp, ...)
1490 PPCODE: 2537 PPCODE:
1491{ 2538{
1492 int i; 2539 int i;
1493 aio_req req;
1494 2540
1495 if (grp->fd == 2) 2541 if (grp->int1 == 2)
1496 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2542 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1497 2543
1498 for (i = 1; i < items; ++i ) 2544 for (i = 1; i < items; ++i )
1499 { 2545 {
2546 aio_req req;
2547
1500 if (GIMME_V != G_VOID) 2548 if (GIMME_V != G_VOID)
1501 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2549 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1502 2550
1503 req = SvAIO_REQ (ST (i)); 2551 req = SvAIO_REQ (ST (i));
1504 2552
1505 if (req) 2553 if (req)
1506 { 2554 eio_grp_add (grp, req);
1507 ++grp->length;
1508 req->grp = grp;
1509
1510 req->grp_prev = 0;
1511 req->grp_next = grp->grp_first;
1512
1513 if (grp->grp_first)
1514 grp->grp_first->grp_prev = req;
1515
1516 grp->grp_first = req;
1517 }
1518 } 2555 }
1519} 2556}
1520 2557
1521void 2558void
1522cancel_subs (aio_req_ornot req) 2559cancel_subs (aio_req_ornot req)
… …
1526void 2563void
1527result (aio_req grp, ...) 2564result (aio_req grp, ...)
1528 CODE: 2565 CODE:
1529{ 2566{
1530 int i; 2567 int i;
2568 AV *av;
2569
2570 grp->errorno = errno;
2571
1531 AV *av = newAV (); 2572 av = newAV ();
2573 av_extend (av, items - 1);
1532 2574
1533 for (i = 1; i < items; ++i ) 2575 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 2576 av_push (av, newSVsv (ST (i)));
1535 2577
1536 SvREFCNT_dec (grp->data); 2578 SvREFCNT_dec (grp->sv1);
1537 grp->data = (SV *)av; 2579 grp->sv1 = (SV *)av;
1538} 2580}
2581
2582void
2583errno (aio_req grp, int errorno = errno)
2584 CODE:
2585 grp->errorno = errorno;
1539 2586
1540void 2587void
1541limit (aio_req grp, int limit) 2588limit (aio_req grp, int limit)
1542 CODE: 2589 CODE:
1543 grp->fd2 = limit; 2590 eio_grp_limit (grp, limit);
1544 aio_grp_feed (grp);
1545 2591
1546void 2592void
1547feed (aio_req grp, SV *callback=&PL_sv_undef) 2593feed (aio_req grp, SV *callback = &PL_sv_undef)
1548 CODE: 2594 CODE:
1549{ 2595{
1550 SvREFCNT_dec (grp->fh2); 2596 SvREFCNT_dec (grp->sv2);
1551 grp->fh2 = newSVsv (callback); 2597 grp->sv2 = newSVsv (callback);
2598 grp->feed = aio_grp_feed;
1552 2599
1553 if (grp->fd2 <= 0) 2600 if (grp->int2 <= 0)
1554 grp->fd2 = 2; 2601 grp->int2 = 2;
1555 2602
1556 aio_grp_feed (grp); 2603 eio_grp_limit (grp, grp->int2);
1557} 2604}
1558 2605

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