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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.77 by root, Thu Oct 26 13:25:40 2006 UTC vs.
Revision 1.279 by root, Fri Sep 6 22:03:45 2019 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"
8#include "perliol.h"
16 9
17#include "autoconf/config.h" 10#if !defined mg_findext
18 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 12#endif
20 13
21#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
22#include <errno.h> 16#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
26#include <sys/stat.h> 19#include <sys/stat.h>
27#include <limits.h> 20#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 21#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 22#include <sched.h>
32 23
33#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
34# if __linux 25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
35# include <sys/sendfile.h> 88 #include <sys/select.h>
36# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
37# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
38# include <sys/uio.h> 123# include <sys/uio.h>
39# elif __hpux 124#endif
40# include <sys/socket.h> 125
41# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
42# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
43# else 207# else
44# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 209# endif
46#endif 210#endif
47 211
48/* used for struct dirent, AIX doesn't provide it */ 212#ifndef makedev
49#ifndef NAME_MAX 213# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif 214#endif
52 215#ifndef major
53#ifndef PTHREAD_STACK_MIN 216# define major(dev) ((dev) >> 8)
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 217#endif
57 218#ifndef minor
58#if __ia64 219# 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 220#endif
65 221
66/* buffer size for various temporary buffers */ 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
67#define AIO_BUFSIZE 65536 223#ifdef __sun
224# undef PAGESIZE
225#endif
68 226
69#define dBUF \ 227#if PAGESIZE <= 0
70 char *aio_buf; \ 228# define PAGESIZE sysconf (_SC_PAGESIZE)
71 LOCK (wrklock); \ 229#endif
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 230
73 UNLOCK (wrklock); \ 231/*****************************************************************************/
74 if (!aio_buf) \ 232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
75 return -1; 266 return 0;
267}
76 268
77enum { 269static MGVTBL mmap_vtbl = {
78 REQ_QUIT, 270 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}; 271};
90 272
91#define AIO_REQ_KLASS "IO::AIO::REQ" 273static int ecb_cold
92#define AIO_GRP_KLASS "IO::AIO::GRP" 274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
93
94typedef struct aio_cb
95{ 275{
96 struct aio_cb *volatile next; 276 free (mg->mg_ptr);
277 mg->mg_obj = 0; /* just in case */
97 278
98 SV *data, *callback; 279 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;
105 280
106 STRLEN dataoffset; 281 if (SvPVX (sv) != mg->mg_ptr)
107 int type; 282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
108 int fd, fd2;
109 int errorno;
110 mode_t mode; /* open */
111 283
112 unsigned char flags; 284 SvCUR_set (sv, 0);
113 unsigned char pri; 285 SvPVX (sv) = 0;
286 SvOK_off (sv);
114 287
115 SV *self; /* the perl counterpart of this request, if any */ 288 return 0;
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 289}
117} aio_cb;
118 290
119enum { 291static MGVTBL sysfree_vtbl = {
120 FLAG_CANCELLED = 0x01, 292 0, 0, 0, 0, sysfree_free
121}; 293};
122 294
123typedef aio_cb *aio_req; 295/*****************************************************************************/
124typedef aio_cb *aio_req_ornot;
125 296
126enum { 297/* helper: set scalar to foreign ptr with custom free */
127 PRI_MIN = -4, 298ecb_noinline
128 PRI_MAX = 4, 299static void
129 300sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
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 int started, wanted;
138static volatile int nreqs;
139static int respipe [2];
140
141#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143#else
144# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145#endif
146
147#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149
150/* worker threads management */
151static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
152
153typedef struct worker {
154 /* locked by wrklock */
155 struct worker *prev, *next;
156
157 pthread_t tid;
158
159 /* locked by reslock, reqlock or wrklock */
160 aio_req req; /* currently processed request */
161 void *dbuf;
162 DIR *dirp;
163} worker;
164
165static worker wrk_first = { &wrk_first, &wrk_first, 0 };
166
167static void worker_clear (worker *wrk)
168{ 301{
169 if (wrk->dirp) 302 sv_force_normal (sv);
303
304 /* we store the length in mg_obj, as namlen is I32 :/ */
305 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
306 ->mg_obj = (SV *)length;
307
308 SvUPGRADE (sv, SVt_PV); /* nop... */
309
310 if (SvLEN (sv))
311 Safefree (SvPVX (sv));
312
313 SvPVX (sv) = (char *)addr;
314 SvCUR_set (sv, length);
315 SvLEN_set (sv, 0);
316 SvPOK_only (sv);
317}
318
319static void
320sv_clear_foreign (SV *sv)
321{
322 /* todo: iterate over magic and only free ours, but of course */
323 /* the perl5porters will call that (correct) behaviour buggy */
324 sv_unmagic (sv, FOREIGN_MAGIC);
325}
326
327/*****************************************************************************/
328
329/* defines all sorts of constants to 0 unless they are already defined */
330/* also provides const_iv_ and const_niv_ macros for them */
331#include "def0.h"
332
333/*****************************************************************************/
334
335static void
336fiemap (eio_req *req)
337{
338 req->result = -1;
339
340#if HAVE_FIEMAP
341 /* assume some c99 */
342 struct fiemap *fiemap = 0;
343 size_t end_offset;
344 int count = req->int3;
345
346 req->flags |= EIO_FLAG_PTR1_FREE;
347
348 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
349 /* increase in 3.5kb steps */
350 if (count < 0)
351 count = 8;
352
353 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 errno = ENOMEM;
355 if (!fiemap)
356 return;
357
358 req->ptr1 = fiemap;
359
360 fiemap->fm_start = req->offs;
361 fiemap->fm_length = req->size;
362 fiemap->fm_flags = req->int2;
363 fiemap->fm_extent_count = count;
364
365 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
366 return;
367
368 if (req->int3 >= 0 /* not autosizing */
369 || !fiemap->fm_mapped_extents /* no more extents */
370 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
371 goto done;
372
373 /* else we have to loop -
374 * it would be tempting (actually I tried that first) to just query the
375 * number of extents needed, but linux often feels like not returning all
376 * extents, without telling us it left any out. this complicates
377 * this quite a bit.
378 */
379
380 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
381
382 for (;;)
170 { 383 {
171 closedir (wrk->dirp); 384 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
172 wrk->dirp = 0; 385 char scratch[3072];
173 } 386 struct fiemap *incmap = (struct fiemap *)scratch;
174 387
175 if (wrk->dbuf) 388 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
176 { 389 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
177 free (wrk->dbuf); 390 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
178 wrk->dbuf = 0; 391 incmap->fm_flags = fiemap->fm_flags;
179 } 392 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
180}
181 393
182static void worker_free (worker *wrk) 394 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183{
184 wrk->next->prev = wrk->prev;
185 wrk->prev->next = wrk->next;
186
187 free (wrk);
188}
189
190static pthread_mutex_t reslock = AIO_MUTEX_INIT;
191static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
192static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
193
194/*
195 * a somewhat faster data structure might be nice, but
196 * with 8 priorities this actually needs <20 insns
197 * per shift, the most expensive operation.
198 */
199typedef struct {
200 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
201 int size;
202} reqq;
203
204static reqq req_queue;
205static reqq res_queue;
206
207int reqq_push (reqq *q, aio_req req)
208{
209 int pri = req->pri;
210 req->next = 0;
211
212 if (q->qe[pri])
213 {
214 q->qe[pri]->next = req;
215 q->qe[pri] = req;
216 }
217 else
218 q->qe[pri] = q->qs[pri] = req;
219
220 return q->size++;
221}
222
223aio_req reqq_shift (reqq *q)
224{
225 int pri;
226
227 if (!q->size)
228 return 0; 395 return;
229 396
230 --q->size; 397 if (!incmap->fm_mapped_extents)
398 goto done;
231 399
232 for (pri = NUM_PRI; pri--; ) 400 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
233 { 401 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
234 aio_req req = q->qs[pri]; 402 errno = ENOMEM;
235
236 if (req) 403 if (!fiemap)
404 return;
405
406 req->ptr1 = fiemap;
407
408 for (count = 0; count < incmap->fm_mapped_extents; ++count)
237 { 409 {
238 if (!(q->qs[pri] = req->next)) 410 struct fiemap_extent *e = incmap->fm_extents + count;
239 q->qe[pri] = 0;
240 411
241 return req; 412 if (e->fe_logical + e->fe_length >= end_offset)
413 goto done;
414
415 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
416
417 if (e->fe_flags & FIEMAP_EXTENT_LAST)
418 goto done;
419
242 } 420 }
243 } 421 }
244 422
245 abort (); 423done:
246} 424 req->result = 0;
247 425
248static int poll_cb (int max); 426#else
249static void req_invoke (aio_req req); 427 errno = ENOSYS;
428#endif
429}
430
431/*****************************************************************************/
432
433static int close_fd; /* dummy fd to close fds via dup2 */
434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
442#endif
443
444enum {
445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
446};
447
448typedef eio_req *aio_req;
449typedef eio_req *aio_req_ornot;
450typedef eio_wd aio_wd;
451
452static SV *on_next_submit;
453static int next_pri = EIO_PRI_DEFAULT;
454static int max_outstanding;
455
456static s_epipe respipe;
457
250static void req_free (aio_req req); 458static void req_destroy (aio_req req);
251static void req_cancel (aio_req req); 459static void req_cancel (aio_req req);
252 460
461static void
462want_poll (void)
463{
464 /* write a dummy byte to the pipe so fh becomes ready */
465 s_epipe_signal (&respipe);
466}
467
468static void
469done_poll (void)
470{
471 /* read any signals sent by the worker threads */
472 s_epipe_drain (&respipe);
473}
474
253/* must be called at most once */ 475/* must be called at most once */
254static SV *req_sv (aio_req req, const char *klass) 476ecb_noinline
477static SV *
478req_sv (aio_req req, HV *stash)
255{ 479{
256 if (!req->self) 480 if (!req->self)
257 { 481 {
258 req->self = (SV *)newHV (); 482 req->self = (SV *)newHV ();
259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 483 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
260 } 484 }
261 485
262 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 486 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
263} 487}
264 488
265static aio_req SvAIO_REQ (SV *sv) 489static SV *
490newSVaio_wd (aio_wd wd)
491{
492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
493}
494
495ecb_noinline
496static aio_req
497SvAIO_REQ (SV *sv)
266{ 498{
267 MAGIC *mg; 499 MAGIC *mg;
268 500
269 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 501 if (!SvROK (sv)
502 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
503 || (SvSTASH (SvRV (sv)) != aio_grp_stash
504 && SvSTASH (SvRV (sv)) != aio_req_stash
505 && !sv_derived_from (sv, "IO::AIO::REQ")))
270 croak ("object of class " AIO_REQ_KLASS " expected"); 506 croak ("object of class IO::AIO::REQ expected");
271 507
272 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 508 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273 509
274 return mg ? (aio_req)mg->mg_ptr : 0; 510 return mg ? (aio_req)mg->mg_ptr : 0;
275} 511}
276 512
513static aio_wd
514SvAIO_WD (SV *sv)
515{
516 if (!SvROK (sv)
517 || SvTYPE (SvRV (sv)) != SVt_PVMG
518 || SvSTASH (SvRV (sv)) != aio_wd_stash)
519 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
520
521 return (aio_wd)(long)SvIVX (SvRV (sv));
522}
523
524static SV *
525newmortalFH (int fd, int flags)
526{
527 if (fd < 0)
528 return &PL_sv_undef;
529
530 GV *gv = (GV *)sv_newmortal ();
531 char sym[64];
532 int symlen;
533
534 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
535 gv_init (gv, aio_stash, sym, symlen, 0);
536
537 symlen = snprintf (
538 sym,
539 sizeof (sym),
540 "%s&=%d",
541 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
542 fd
543 );
544
545 return do_open (gv, sym, symlen, 0, 0, 0, 0)
546 ? (SV *)gv : &PL_sv_undef;
547}
548
549static void
277static void aio_grp_feed (aio_req grp) 550aio_grp_feed (aio_req grp)
278{ 551{
279 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 552 if (grp->sv2 && SvOK (grp->sv2))
280 { 553 {
281 int old_len = grp->length;
282
283 if (grp->fh2 && SvOK (grp->fh2))
284 {
285 dSP; 554 dSP;
286 555
287 ENTER; 556 ENTER;
288 SAVETMPS; 557 SAVETMPS;
289 PUSHMARK (SP); 558 PUSHMARK (SP);
290 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 559 XPUSHs (req_sv (grp, aio_grp_stash));
291 PUTBACK; 560 PUTBACK;
292 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 561 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293 SPAGAIN; 562 SPAGAIN;
294 FREETMPS; 563 FREETMPS;
295 LEAVE; 564 LEAVE;
296 }
297
298 /* stop if no progress has been made */
299 if (old_len == grp->length)
300 {
301 SvREFCNT_dec (grp->fh2);
302 grp->fh2 = 0;
303 break;
304 }
305 } 565 }
306} 566}
307 567
308static void aio_grp_dec (aio_req grp) 568ecb_noinline
569static void
570req_submit (eio_req *req)
309{ 571{
310 --grp->length; 572 eio_submit (req);
311 573
312 /* call feeder, if applicable */ 574 if (expect_false (on_next_submit))
313 aio_grp_feed (grp);
314
315 /* finish, if done */
316 if (!grp->length && grp->fd)
317 { 575 {
318 req_invoke (grp); 576 dSP;
319 req_free (grp); 577 SV *cb = sv_2mortal (on_next_submit);
578
579 on_next_submit = 0;
580
581 PUSHMARK (SP);
582 PUTBACK;
583 call_sv (cb, G_DISCARD | G_EVAL);
320 } 584 }
321} 585}
322 586
323static void poll_wait () 587static int
588req_invoke (eio_req *req)
324{ 589{
325 fd_set rfd; 590 if (req->flags & FLAG_SV2_RO_OFF)
591 SvREADONLY_off (req->sv2);
326 592
327 while (nreqs) 593 if (!EIO_CANCELLED (req) && req->callback)
328 { 594 {
329 int size;
330#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
331 LOCK (reslock);
332#endif
333 size = res_queue.size;
334#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
335 UNLOCK (reslock);
336#endif
337
338 if (size)
339 return;
340
341 FD_ZERO(&rfd);
342 FD_SET(respipe [0], &rfd);
343
344 select (respipe [0] + 1, &rfd, 0, 0, 0);
345 }
346}
347
348static void req_invoke (aio_req req)
349{
350 dSP; 595 dSP;
351 596 static SV *sv_result_cache; /* caches the result integer SV */
352 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 597 SV *sv_result;
353 {
354 errno = req->errorno;
355 598
356 ENTER; 599 ENTER;
357 SAVETMPS; 600 SAVETMPS;
358 PUSHMARK (SP); 601 PUSHMARK (SP);
359 EXTEND (SP, 1); 602 EXTEND (SP, 1);
360 603
604 /* do not recreate the result IV from scratch each time */
605 if (expect_true (sv_result_cache))
606 {
607 sv_result = sv_result_cache; sv_result_cache = 0;
608 SvIV_set (sv_result, req->result);
609 SvIOK_only (sv_result);
610 }
611 else
612 {
613 sv_result = newSViv (req->result);
614 SvREADONLY_on (sv_result);
615 }
616
361 switch (req->type) 617 switch (req->type)
362 { 618 {
619 case EIO_WD_OPEN:
620 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
621 break;
622
363 case REQ_READDIR: 623 case EIO_READDIR:
364 { 624 {
365 SV *rv = &PL_sv_undef; 625 SV *rv = &PL_sv_undef;
366 626
367 if (req->result >= 0) 627 if (req->result >= 0)
368 { 628 {
369 int i; 629 int i;
370 char *buf = req->data2ptr; 630 char *names = (char *)req->ptr2;
631 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
371 AV *av = newAV (); 632 AV *av = newAV ();
372 633
373 av_extend (av, req->result - 1); 634 av_extend (av, req->result - 1);
374 635
375 for (i = 0; i < req->result; ++i) 636 for (i = 0; i < req->result; ++i)
376 { 637 {
377 SV *sv = newSVpv (buf, 0); 638 if (req->int1 & EIO_READDIR_DENTS)
639 {
640 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
378 641
642 if (req->int1 & EIO_READDIR_CUSTOM2)
643 {
644 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
645 AV *avent = newAV ();
646
647 av_extend (avent, 2);
648
649 if (!sv_type [ent->type])
650 {
651 sv_type [ent->type] = newSViv (ent->type);
652 SvREADONLY_on (sv_type [ent->type]);
653 }
654
655 av_store (avent, 0, namesv);
656 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
657 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
658
659 av_store (av, i, newRV_noinc ((SV *)avent));
660 }
661 else
379 av_store (av, i, sv); 662 av_store (av, i, namesv);
663
664 ++ent;
665 }
666 else
667 {
668 SV *name = newSVpv (names, 0);
669 av_store (av, i, name);
380 buf += SvCUR (sv) + 1; 670 names += SvCUR (name) + 1;
671 }
381 } 672 }
382 673
383 rv = sv_2mortal (newRV_noinc ((SV *)av)); 674 rv = sv_2mortal (newRV_noinc ((SV *)av));
384 } 675 }
385 676
386 PUSHs (rv); 677 PUSHs (rv);
678
679 if (req->int1 & EIO_READDIR_CUSTOM1)
680 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
387 } 681 }
388 break; 682 break;
389 683
390 case REQ_OPEN: 684 case EIO_OPEN:
685 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
686 break;
687
688 case EIO_STATVFS:
689 case EIO_FSTATVFS:
391 { 690 {
392 /* convert fd to fh */ 691 SV *rv = &PL_sv_undef;
393 SV *fh; 692
693#ifndef _WIN32
694 if (req->result >= 0)
695 {
696 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
697 HV *hv = newHV ();
698 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
699 * chooses to make it a struct.
700 */
701 unsigned long fsid = 0;
702 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
394 703
395 PUSHs (sv_2mortal (newSViv (req->result))); 704 rv = sv_2mortal (newRV_noinc ((SV *)hv));
396 PUTBACK;
397 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
398 SPAGAIN;
399 705
400 fh = SvREFCNT_inc (POPs); 706 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
707 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
708 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
709 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
710 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
711 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
712 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
713 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
714 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
715 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
716 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
717 }
718#endif
401 719
402 PUSHMARK (SP); 720 PUSHs (rv);
403 XPUSHs (sv_2mortal (fh));
404 } 721 }
722
405 break; 723 break;
406 724
407 case REQ_GROUP: 725 case EIO_GROUP:
408 req->fd = 2; /* mark group as finished */ 726 req->int1 = 2; /* mark group as finished */
409 727
410 if (req->data) 728 if (req->sv1)
411 { 729 {
412 int i; 730 int i;
413 AV *av = (AV *)req->data; 731 AV *av = (AV *)req->sv1;
414 732
415 EXTEND (SP, AvFILL (av) + 1); 733 EXTEND (SP, AvFILL (av) + 1);
416 for (i = 0; i <= AvFILL (av); ++i) 734 for (i = 0; i <= AvFILL (av); ++i)
417 PUSHs (*av_fetch (av, i, 0)); 735 PUSHs (*av_fetch (av, i, 0));
418 } 736 }
419 break; 737 break;
420 738
421 case REQ_NOP: 739 case EIO_NOP:
422 case REQ_BUSY: 740 case EIO_BUSY:
423 break; 741 break;
424 742
743 case EIO_READLINK:
744 case EIO_REALPATH:
745 if (req->result > 0)
746 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
747 break;
748
749 case EIO_STAT:
750 case EIO_LSTAT:
751 case EIO_FSTAT:
752 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
753
754 if (!(PL_laststatval = req->result))
755 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
756 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
757
758 PUSHs (sv_result);
759 break;
760
761 case EIO_SEEK:
762 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
763 break;
764
765 case EIO_READ:
766 {
767 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
768 *SvEND (req->sv2) = 0;
769 SvPOK_only (req->sv2);
770 SvSETMAGIC (req->sv2);
771 PUSHs (sv_result);
772 }
773 break;
774
775 case EIO_SLURP:
776 {
777 if (req->result >= 0)
778 {
779 /* if length was originally not known, we steal the malloc'ed memory */
780 if (req->flags & EIO_FLAG_PTR2_FREE)
781 {
782 req->flags &= ~EIO_FLAG_PTR2_FREE;
783 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
784 }
785 else
786 {
787 SvCUR_set (req->sv2, req->result);
788 *SvEND (req->sv2) = 0;
789 SvPOK_only (req->sv2);
790 }
791
792 SvSETMAGIC (req->sv2);
793 }
794
795 PUSHs (sv_result);
796 }
797 break;
798
799 case EIO_CUSTOM:
800 if (req->feed == fiemap)
801 {
802#if HAVE_FIEMAP
803 if (!req->result)
804 {
805 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
806
807 if (fiemap->fm_extent_count)
808 {
809 AV *av = newAV ();
810 int i;
811
812 while (fiemap->fm_mapped_extents)
813 {
814 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
815 AV *ext_av = newAV ();
816
817 av_store (ext_av, 3, newSVuv (extent->fe_flags));
818 av_store (ext_av, 2, newSVval64 (extent->fe_length));
819 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
820 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
821
822 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
823 }
824
825 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
826 }
827 else
828 {
829 SvIV_set (sv_result, fiemap->fm_mapped_extents);
830 PUSHs (sv_result);
831 }
832 }
833#endif
834 }
835 else
836 PUSHs (sv_result);
837 break;
838
839#if 0
840 case EIO_CLOSE:
841 PerlIOUnix_refcnt_dec (req->int1);
842 break;
843#endif
844
845 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
846 if (req->result > 0)
847 SvIV_set (sv_result, 0);
848 /* FALLTHROUGH */
849
425 default: 850 default:
426 PUSHs (sv_2mortal (newSViv (req->result))); 851 PUSHs (sv_result);
427 break; 852 break;
428 } 853 }
429 854
855 errno = req->errorno;
430 856
431 PUTBACK; 857 PUTBACK;
432 call_sv (req->callback, G_VOID | G_EVAL); 858 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
433 SPAGAIN; 859 SPAGAIN;
860
861 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
862 SvREFCNT_dec (sv_result);
863 else
864 sv_result_cache = sv_result;
434 865
435 FREETMPS; 866 FREETMPS;
436 LEAVE; 867 LEAVE;
868
869 PUTBACK;
437 } 870 }
438 871
439 if (req->grp) 872 return !!SvTRUE (ERRSV);
440 {
441 aio_req grp = req->grp;
442
443 /* unlink request */
444 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
445 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
446
447 if (grp->grp_first == req)
448 grp->grp_first = req->grp_next;
449
450 aio_grp_dec (grp);
451 }
452
453 if (SvTRUE (ERRSV))
454 {
455 req_free (req);
456 croak (0);
457 }
458} 873}
459 874
460static void req_free (aio_req req) 875static void
876req_destroy (aio_req req)
461{ 877{
462 if (req->self) 878 if (req->self)
463 { 879 {
464 sv_unmagic (req->self, PERL_MAGIC_ext); 880 sv_unmagic (req->self, PERL_MAGIC_ext);
465 SvREFCNT_dec (req->self); 881 SvREFCNT_dec (req->self);
466 } 882 }
467 883
468 SvREFCNT_dec (req->data);
469 SvREFCNT_dec (req->fh); 884 SvREFCNT_dec (req->sv1);
470 SvREFCNT_dec (req->fh2); 885 SvREFCNT_dec (req->sv2);
886 SvREFCNT_dec (req->sv3);
887 SvREFCNT_dec (req->sv4);
471 SvREFCNT_dec (req->callback); 888 SvREFCNT_dec (req->callback);
472 Safefree (req->statdata);
473 889
474 if (req->type == REQ_READDIR)
475 free (req->data2ptr);
476
477 Safefree (req); 890 free (req);
478} 891}
479 892
893static void
480static void req_cancel_subs (aio_req grp) 894req_cancel_subs (aio_req grp)
481{ 895{
482 aio_req sub;
483
484 if (grp->type != REQ_GROUP) 896 if (grp->type != EIO_GROUP)
485 return; 897 return;
486 898
487 SvREFCNT_dec (grp->fh2); 899 SvREFCNT_dec (grp->sv2);
488 grp->fh2 = 0; 900 grp->sv2 = 0;
489 901
490 for (sub = grp->grp_first; sub; sub = sub->grp_next) 902 eio_grp_cancel (grp);
491 req_cancel (sub);
492} 903}
493 904
494static void req_cancel (aio_req req) 905ecb_cold
906static void
907create_respipe (void)
495{ 908{
496 req->flags |= FLAG_CANCELLED; 909 if (s_epipe_renew (&respipe))
497 910 croak ("IO::AIO: unable to initialize result pipe");
498 req_cancel_subs (req);
499} 911}
500 912
501static int poll_cb (int max) 913static void
914poll_wait (void)
502{ 915{
503 dSP; 916 while (eio_nreqs ())
504 int count = 0; 917 {
505 int do_croak = 0; 918 int size;
919
920 X_LOCK (EIO_POOL->reslock);
921 size = EIO_POOL->res_queue.size;
922 X_UNLOCK (EIO_POOL->reslock);
923
924 if (size)
925 return;
926
927 etp_maybe_start_thread (EIO_POOL);
928
929 s_epipe_wait (&respipe);
930 }
931}
932
933static int
934poll_cb (void)
935{
936 for (;;)
937 {
938 int res = eio_poll ();
939
940 if (res > 0)
941 croak (0);
942
943 if (!max_outstanding || max_outstanding > eio_nreqs ())
944 return res;
945
946 poll_wait ();
947 }
948}
949
950ecb_cold
951static void
952reinit (void)
953{
954 create_respipe ();
955
956 if (eio_init (want_poll, done_poll) < 0)
957 croak ("IO::AIO: unable to initialise eio library");
958}
959
960/*****************************************************************************/
961
962static SV *
963get_cb (SV *cb_sv)
964{
965 SvGETMAGIC (cb_sv);
966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
967}
968
969ecb_noinline
970static aio_req ecb_noinline
971dreq (SV *callback)
972{
973 SV *cb_cv;
506 aio_req req; 974 aio_req req;
975 int req_pri = next_pri;
976 next_pri = EIO_PRI_DEFAULT;
507 977
508 while (max <= 0 || count < max) 978 cb_cv = get_cb (callback);
979
980 req = calloc (sizeof (*req), 1);
981 if (!req)
982 croak ("out of memory during eio_req allocation");
983
984 req->callback = SvREFCNT_inc (cb_cv);
985 req->pri = req_pri;
986
987 return req;
988}
989
990#define dREQ \
991 aio_req req = dreq (callback); \
992
993#define REQ_SEND \
994 PUTBACK; \
995 req_submit (req); \
996 SPAGAIN; \
997 \
998 if (GIMME_V != G_VOID) \
999 XPUSHs (req_sv (req, aio_req_stash));
1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1002ecb_inline
1003void
1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1005{
1006 if (expect_false (SvROK (path)))
509 { 1007 {
510 LOCK (reslock); 1008 SV *rv = SvRV (path);
511 req = reqq_shift (&res_queue); 1009 SV *wdob;
512 1010
513 if (req) 1011 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
514 { 1012 {
515 if (!res_queue.size) 1013 path = AvARRAY (rv)[1];
1014 wdob = AvARRAY (rv)[0];
1015
1016 if (SvOK (wdob))
516 { 1017 {
517 /* read any signals sent by the worker threads */ 1018 *wd = SvAIO_WD (wdob);
518 char buf [32]; 1019 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
519 while (read (respipe [0], buf, 32) == 32)
520 ;
521 } 1020 }
1021 else
1022 *wd = EIO_INVALID_WD;
522 } 1023 }
523 1024 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
524 UNLOCK (reslock);
525
526 if (!req)
527 break;
528
529 --nreqs;
530
531 if (req->type == REQ_QUIT)
532 started--;
533 else if (req->type == REQ_GROUP && req->length)
534 { 1025 {
535 req->fd = 1; /* mark request as delayed */ 1026 *wd = (aio_wd)(long)SvIVX (rv);
536 continue; 1027 *wdsv = SvREFCNT_inc_NN (rv);
1028 *ptr = ".";
1029 return; /* path set to "." */
537 } 1030 }
538 else 1031 else
539 { 1032 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
540 if (req->type == REQ_READ)
541 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
542
543 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
544 SvREADONLY_off (req->data);
545
546 if (req->statdata)
547 {
548 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
549 PL_laststatval = req->result;
550 PL_statcache = *(req->statdata);
551 }
552
553 req_invoke (req);
554
555 count++;
556 }
557
558 req_free (req);
559 } 1033 }
560 1034
561 return count; 1035 *pathsv = newSVsv (path);
1036 *ptr = SvPVbyte_nolen (*pathsv);
562} 1037}
563 1038
564static void *aio_proc(void *arg); 1039ecb_noinline
565 1040static void
566static void start_thread (void) 1041req_set_path1 (aio_req req, SV *path)
567{ 1042{
568 sigset_t fullsigset, oldsigset; 1043 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
569 pthread_attr_t attr; 1044}
570 1045
571 worker *wrk = calloc (1, sizeof (worker)); 1046ecb_noinline
1047static void
1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1049{
1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
572 1051
573 if (!wrk) 1052 switch (SvTYPE (rv))
574 croak ("unable to allocate worker thread data");
575
576 pthread_attr_init (&attr);
577 pthread_attr_setstacksize (&attr, STACKSIZE);
578 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
579
580 sigfillset (&fullsigset);
581
582 LOCK (wrklock);
583 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
584
585 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
586 { 1053 {
587 wrk->prev = &wrk_first; 1054 case SVt_PVIO:
588 wrk->next = wrk_first.next; 1055 case SVt_PVLV:
589 wrk_first.next->prev = wrk; 1056 case SVt_PVGV:
590 wrk_first.next = wrk; 1057 req->type = type_fh;
591 started++; 1058 req->sv1 = newSVsv (fh_or_path);
1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1060 break;
1061
1062 default:
1063 req->type = type_path;
1064 req_set_path1 (req, fh_or_path);
1065 break;
592 } 1066 }
593 else
594 free (wrk);
595
596 sigprocmask (SIG_SETMASK, &oldsigset, 0);
597 UNLOCK (wrklock);
598}
599
600static void req_send (aio_req req)
601{
602 while (started < wanted && nreqs >= started)
603 start_thread ();
604
605 ++nreqs;
606
607 LOCK (reqlock);
608 reqq_push (&req_queue, req);
609 pthread_cond_signal (&reqwait);
610 UNLOCK (reqlock);
611}
612
613static void end_thread (void)
614{
615 aio_req req;
616
617 Newz (0, req, 1, aio_cb);
618
619 req->type = REQ_QUIT;
620 req->pri = PRI_MAX + PRI_BIAS;
621
622 req_send (req);
623}
624
625static void min_parallel (int nthreads)
626{
627 if (wanted < nthreads)
628 wanted = nthreads;
629}
630
631static void max_parallel (int nthreads)
632{
633 int cur = started;
634
635 if (wanted > nthreads)
636 wanted = nthreads;
637
638 while (cur > wanted)
639 {
640 end_thread ();
641 cur--;
642 }
643
644 while (started > wanted)
645 {
646 poll_wait ();
647 poll_cb (0);
648 }
649}
650
651static void create_pipe ()
652{
653 if (pipe (respipe))
654 croak ("unable to initialize result pipe");
655
656 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
657 croak ("cannot set result pipe to nonblocking mode");
658
659 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
660 croak ("cannot set result pipe to nonblocking mode");
661} 1067}
662 1068
663/*****************************************************************************/ 1069/*****************************************************************************/
664/* work around various missing functions */
665 1070
666#if !HAVE_PREADWRITE 1071static void
667# define pread aio_pread 1072ts_set (struct timespec *ts, NV value)
668# define pwrite aio_pwrite
669
670/*
671 * make our pread/pwrite safe against themselves, but not against
672 * normal read/write by using a mutex. slows down execution a lot,
673 * but that's your problem, not mine.
674 */
675static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
676
677static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
678{ 1073{
679 ssize_t res; 1074 ts->tv_sec = value;
680 off_t ooffset; 1075 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
681
682 LOCK (preadwritelock);
683 ooffset = lseek (fd, 0, SEEK_CUR);
684 lseek (fd, offset, SEEK_SET);
685 res = read (fd, buf, count);
686 lseek (fd, ooffset, SEEK_SET);
687 UNLOCK (preadwritelock);
688
689 return res;
690} 1076}
691 1077
692static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1078static NV
1079ts_get (const struct timespec *ts)
693{ 1080{
694 ssize_t res; 1081 return ts->tv_sec + ts->tv_nsec * 1e-9;
695 off_t ooffset;
696
697 LOCK (preadwritelock);
698 ooffset = lseek (fd, 0, SEEK_CUR);
699 lseek (fd, offset, SEEK_SET);
700 res = write (fd, buf, count);
701 lseek (fd, offset, SEEK_SET);
702 UNLOCK (preadwritelock);
703
704 return res;
705} 1082}
706#endif
707 1083
708#if !HAVE_FDATASYNC 1084/*****************************************************************************/
709# define fdatasync fsync
710#endif
711 1085
712#if !HAVE_READAHEAD 1086XS(boot_IO__AIO) ecb_cold;
713# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
714 1087
715static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1088MODULE = IO::AIO PACKAGE = IO::AIO
716{
717 dBUF;
718 1089
719 while (count > 0) 1090PROTOTYPES: ENABLE
720 {
721 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
722 1091
723 pread (fd, aio_buf, len, offset); 1092BOOT:
724 offset += len;
725 count -= len;
726 }
727
728 errno = 0;
729}
730
731#endif
732
733#if !HAVE_READDIR_R
734# define readdir_r aio_readdir_r
735
736static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
737
738static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
739{ 1093{
740 struct dirent *e; 1094 static const struct {
741 int errorno; 1095 const char *name;
1096 IV iv;
1097 } *civ, const_iv[] = {
1098# define const_niv(name, value) { # name, (IV) value },
1099# define const_iv(name) { # name, (IV) name },
1100# define const_eio(name) { # name, (IV) EIO_ ## name },
742 1101
743 LOCK (readdirlock); 1102 /* you have to re-run ./gendef0 after adding/removing any constants here */
1103 /* the first block can be undef if missing */
1104 const_iv (ENOSYS)
1105 const_iv (EXDEV)
1106 const_iv (EBADR)
744 1107
745 e = readdir (dirp); 1108 /* for lseek */
746 errorno = errno; 1109 const_iv (SEEK_DATA)
1110 const_iv (SEEK_HOLE)
747 1111
748 if (e) 1112 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
749 { 1113 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
750 *res = ent; 1114 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
751 strcpy (ent->d_name, e->d_name); 1115 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
752 } 1116 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
753 else 1117 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
754 *res = 0;
755 1118
756 UNLOCK (readdirlock); 1119 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1120 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1121 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1122 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1123 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
757 1124
758 errno = errorno; 1125 /* the second block will be 0 when missing */
759 return e ? 0 : -1; 1126 const_iv (O_ACCMODE)
760}
761#endif
762 1127
763/* sendfile always needs emulation */ 1128 const_iv (O_RDONLY)
764static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1129 const_iv (O_WRONLY)
765{ 1130 const_iv (O_RDWR)
766 ssize_t res; 1131 const_iv (O_CREAT)
1132 const_iv (O_TRUNC)
1133 const_iv (O_EXCL)
1134 const_iv (O_APPEND)
767 1135
768 if (!count) 1136 const_iv (O_ASYNC)
769 return 0; 1137 const_iv (O_DIRECT)
1138 const_iv (O_NOATIME)
770 1139
771#if HAVE_SENDFILE 1140 const_iv (O_CLOEXEC)
772# if __linux 1141 const_iv (O_NOCTTY)
773 res = sendfile (ofd, ifd, &offset, count); 1142 const_iv (O_NOFOLLOW)
1143 const_iv (O_NONBLOCK)
1144 const_iv (O_EXEC)
1145 const_iv (O_SEARCH)
1146 const_iv (O_DIRECTORY)
1147 const_iv (O_DSYNC)
1148 const_iv (O_RSYNC)
1149 const_iv (O_SYNC)
1150 const_iv (O_PATH)
1151 const_iv (O_TMPFILE)
1152 const_iv (O_TTY_INIT)
774 1153
775# elif __freebsd 1154 const_iv (S_IFIFO)
776 /* 1155 const_iv (S_IFCHR)
777 * Of course, the freebsd sendfile is a dire hack with no thoughts 1156 const_iv (S_IFBLK)
778 * wasted on making it similar to other I/O functions. 1157 const_iv (S_IFLNK)
779 */ 1158 const_iv (S_IFREG)
1159 const_iv (S_IFDIR)
1160 const_iv (S_IFWHT)
1161 const_iv (S_IFSOCK)
1162 const_iv (S_IFMT)
1163
1164 const_iv (ST_RDONLY)
1165 const_iv (ST_NOSUID)
1166 const_iv (ST_NODEV)
1167 const_iv (ST_NOEXEC)
1168 const_iv (ST_SYNCHRONOUS)
1169 const_iv (ST_MANDLOCK)
1170 const_iv (ST_WRITE)
1171 const_iv (ST_APPEND)
1172 const_iv (ST_IMMUTABLE)
1173 const_iv (ST_NOATIME)
1174 const_iv (ST_NODIRATIME)
1175 const_iv (ST_RELATIME)
1176
1177 const_iv (PROT_NONE)
1178 const_iv (PROT_EXEC)
1179 const_iv (PROT_READ)
1180 const_iv (PROT_WRITE)
1181
1182 const_iv (MAP_PRIVATE)
1183 const_iv (MAP_SHARED)
1184 const_iv (MAP_FIXED)
1185 const_iv (MAP_ANONYMOUS)
1186
1187 /* linuxish */
1188 const_iv (MAP_LOCKED)
1189 const_iv (MAP_NORESERVE)
1190 const_iv (MAP_POPULATE)
1191 const_iv (MAP_NONBLOCK)
1192 const_iv (MAP_GROWSDOWN)
1193 const_iv (MAP_32BIT)
1194 const_iv (MAP_HUGETLB)
1195 const_iv (MAP_STACK)
1196
1197 const_iv (MREMAP_MAYMOVE)
1198 const_iv (MREMAP_FIXED)
1199
1200 const_iv (MSG_CMSG_CLOEXEC)
1201 const_iv (SOCK_CLOEXEC)
1202
1203 const_iv (F_DUPFD_CLOEXEC)
1204
1205 const_iv (F_ADD_SEALS)
1206 const_iv (F_GET_SEALS)
1207 const_iv (F_SEAL_SEAL)
1208 const_iv (F_SEAL_SHRINK)
1209 const_iv (F_SEAL_GROW)
1210 const_iv (F_SEAL_WRITE)
1211
1212 const_iv (F_OFD_GETLK)
1213 const_iv (F_OFD_SETLK)
1214 const_iv (F_OFD_GETLKW)
1215
1216 const_iv (FIFREEZE)
1217 const_iv (FITHAW)
1218 const_iv (FITRIM)
1219 const_iv (FICLONE)
1220 const_iv (FICLONERANGE)
1221 const_iv (FIDEDUPERANGE)
1222
1223 const_iv (FS_IOC_GETFLAGS)
1224 const_iv (FS_IOC_SETFLAGS)
1225 const_iv (FS_IOC_GETVERSION)
1226 const_iv (FS_IOC_SETVERSION)
1227 const_iv (FS_IOC_FIEMAP)
1228 const_iv (FS_IOC_FSGETXATTR)
1229 const_iv (FS_IOC_FSSETXATTR)
1230 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1231 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1232 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1233
1234 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1235
1236 const_iv (FS_SECRM_FL)
1237 const_iv (FS_UNRM_FL)
1238 const_iv (FS_COMPR_FL)
1239 const_iv (FS_SYNC_FL)
1240 const_iv (FS_IMMUTABLE_FL)
1241 const_iv (FS_APPEND_FL)
1242 const_iv (FS_NODUMP_FL)
1243 const_iv (FS_NOATIME_FL)
1244 const_iv (FS_DIRTY_FL)
1245 const_iv (FS_COMPRBLK_FL)
1246 const_iv (FS_NOCOMP_FL)
1247 const_iv (FS_ENCRYPT_FL)
1248 const_iv (FS_BTREE_FL)
1249 const_iv (FS_INDEX_FL)
1250 const_iv (FS_JOURNAL_DATA_FL)
1251 const_iv (FS_NOTAIL_FL)
1252 const_iv (FS_DIRSYNC_FL)
1253 const_iv (FS_TOPDIR_FL)
1254 const_iv (FS_FL_USER_MODIFIABLE)
1255
1256 const_iv (FS_XFLAG_REALTIME)
1257 const_iv (FS_XFLAG_PREALLOC)
1258 const_iv (FS_XFLAG_IMMUTABLE)
1259 const_iv (FS_XFLAG_APPEND)
1260 const_iv (FS_XFLAG_SYNC)
1261 const_iv (FS_XFLAG_NOATIME)
1262 const_iv (FS_XFLAG_NODUMP)
1263 const_iv (FS_XFLAG_RTINHERIT)
1264 const_iv (FS_XFLAG_PROJINHERIT)
1265 const_iv (FS_XFLAG_NOSYMLINKS)
1266 const_iv (FS_XFLAG_EXTSIZE)
1267 const_iv (FS_XFLAG_EXTSZINHERIT)
1268 const_iv (FS_XFLAG_NODEFRAG)
1269 const_iv (FS_XFLAG_FILESTREAM)
1270 const_iv (FS_XFLAG_DAX)
1271 const_iv (FS_XFLAG_HASATTR)
1272
1273 const_iv (FIEMAP_FLAG_SYNC)
1274 const_iv (FIEMAP_FLAG_XATTR)
1275 const_iv (FIEMAP_FLAGS_COMPAT)
1276 const_iv (FIEMAP_EXTENT_LAST)
1277 const_iv (FIEMAP_EXTENT_UNKNOWN)
1278 const_iv (FIEMAP_EXTENT_DELALLOC)
1279 const_iv (FIEMAP_EXTENT_ENCODED)
1280 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1281 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1282 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1283 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1284 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1285 const_iv (FIEMAP_EXTENT_MERGED)
1286 const_iv (FIEMAP_EXTENT_SHARED)
1287
1288 const_iv (SPLICE_F_MOVE)
1289 const_iv (SPLICE_F_NONBLOCK)
1290 const_iv (SPLICE_F_MORE)
1291 const_iv (SPLICE_F_GIFT)
1292
1293 const_iv (EFD_CLOEXEC)
1294 const_iv (EFD_NONBLOCK)
1295 const_iv (EFD_SEMAPHORE)
1296
1297 const_iv (MFD_CLOEXEC)
1298 const_iv (MFD_ALLOW_SEALING)
1299 const_iv (MFD_HUGETLB)
1300
1301 const_iv (CLOCK_REALTIME)
1302 const_iv (CLOCK_MONOTONIC)
1303 const_iv (CLOCK_BOOTTIME)
1304 const_iv (CLOCK_REALTIME_ALARM)
1305 const_iv (CLOCK_BOOTTIME_ALARM)
1306
1307 const_iv (TFD_NONBLOCK)
1308 const_iv (TFD_CLOEXEC)
1309
1310 const_iv (TFD_TIMER_ABSTIME)
1311 const_iv (TFD_TIMER_CANCEL_ON_SET)
1312
1313 const_iv (STATX_TYPE)
1314 const_iv (STATX_MODE)
1315 const_iv (STATX_NLINK)
1316 const_iv (STATX_UID)
1317 const_iv (STATX_GID)
1318 const_iv (STATX_ATIME)
1319 const_iv (STATX_MTIME)
1320 const_iv (STATX_CTIME)
1321 const_iv (STATX_INO)
1322 const_iv (STATX_SIZE)
1323 const_iv (STATX_BLOCKS)
1324 const_iv (STATX_BASIC_STATS)
1325 const_iv (STATX_ALL)
1326 const_iv (STATX_BTIME)
1327 const_iv (STATX_ATTR_COMPRESSED)
1328 const_iv (STATX_ATTR_IMMUTABLE)
1329 const_iv (STATX_ATTR_APPEND)
1330 const_iv (STATX_ATTR_NODUMP)
1331 const_iv (STATX_ATTR_ENCRYPTED)
1332 const_iv (STATX_ATTR_AUTOMOUNT)
1333
1334 /* these are libeio constants, and are independent of gendef0 */
1335 const_eio (SEEK_SET)
1336 const_eio (SEEK_CUR)
1337 const_eio (SEEK_END)
1338
1339 const_eio (MCL_FUTURE)
1340 const_eio (MCL_CURRENT)
1341 const_eio (MCL_ONFAULT)
1342
1343 const_eio (MS_ASYNC)
1344 const_eio (MS_INVALIDATE)
1345 const_eio (MS_SYNC)
1346
1347 const_eio (MT_MODIFY)
1348
1349 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1350 const_eio (SYNC_FILE_RANGE_WRITE)
1351 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1352
1353 const_eio (FALLOC_FL_KEEP_SIZE)
1354 const_eio (FALLOC_FL_PUNCH_HOLE)
1355 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1356 const_eio (FALLOC_FL_ZERO_RANGE)
1357 const_eio (FALLOC_FL_INSERT_RANGE)
1358 const_eio (FALLOC_FL_UNSHARE_RANGE)
1359
1360 const_eio (RENAME_NOREPLACE)
1361 const_eio (RENAME_EXCHANGE)
1362 const_eio (RENAME_WHITEOUT)
1363
1364 const_eio (READDIR_DENTS)
1365 const_eio (READDIR_DIRS_FIRST)
1366 const_eio (READDIR_STAT_ORDER)
1367 const_eio (READDIR_FOUND_UNKNOWN)
1368
1369 const_eio (DT_UNKNOWN)
1370 const_eio (DT_FIFO)
1371 const_eio (DT_CHR)
1372 const_eio (DT_DIR)
1373 const_eio (DT_BLK)
1374 const_eio (DT_REG)
1375 const_eio (DT_LNK)
1376 const_eio (DT_SOCK)
1377 const_eio (DT_WHT)
1378 };
1379
1380 aio_stash = gv_stashpv ("IO::AIO" , 1);
1381 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1382 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1383 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1384
1385 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1386 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1387
1388 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1389
1390 /* allocate dummy pipe fd for aio_close */
780 { 1391 {
781 off_t sbytes; 1392 int pipefd [2];
782 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
783 1393
784 if (res < 0 && sbytes) 1394 if (
785 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1395#ifdef _WIN32
786 res = sbytes; 1396 _pipe (pipefd, 1, _O_BINARY) < 0
1397#else
1398 pipe (pipefd) < 0
1399 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1400#endif
1401 || close (pipefd [1]) < 0
1402 )
1403 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1404
1405 close_fd = pipefd [0];
787 } 1406 }
788 1407
789# elif __hpux 1408 reinit ();
790 res = sendfile (ofd, ifd, offset, count, 0, 0); 1409}
791 1410
792# elif __solaris 1411void
1412reinit ()
1413 PROTOTYPE:
1414
1415void
1416max_poll_reqs (unsigned int nreqs)
1417 PROTOTYPE: $
1418 CODE:
1419 eio_set_max_poll_reqs (nreqs);
1420
1421void
1422max_poll_time (double nseconds)
1423 PROTOTYPE: $
1424 CODE:
1425 eio_set_max_poll_time (nseconds);
1426
1427void
1428min_parallel (unsigned int nthreads)
1429 PROTOTYPE: $
1430 CODE:
1431 eio_set_min_parallel (nthreads);
1432
1433void
1434max_parallel (unsigned int nthreads)
1435 PROTOTYPE: $
1436 CODE:
1437 eio_set_max_parallel (nthreads);
1438
1439void
1440max_idle (unsigned int nthreads)
1441 PROTOTYPE: $
1442 CODE:
1443 eio_set_max_idle (nthreads);
1444
1445void
1446idle_timeout (unsigned int seconds)
1447 PROTOTYPE: $
1448 CODE:
1449 eio_set_idle_timeout (seconds);
1450
1451void
1452max_outstanding (unsigned int maxreqs)
1453 PROTOTYPE: $
1454 CODE:
1455 max_outstanding = maxreqs;
1456
1457void
1458aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1459 PPCODE:
1460{
1461 dREQ;
1462
1463 req->type = EIO_WD_OPEN;
1464 req_set_path1 (req, pathname);
1465
1466 REQ_SEND;
1467}
1468
1469void
1470aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1471 PPCODE:
1472{
1473 dREQ;
1474
1475 req->type = EIO_OPEN;
1476 req_set_path1 (req, pathname);
1477 req->int1 = flags;
1478 req->int2 = mode;
1479
1480 REQ_SEND;
1481}
1482
1483void
1484aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1485 ALIAS:
1486 aio_fsync = EIO_FSYNC
1487 aio_fdatasync = EIO_FDATASYNC
1488 aio_syncfs = EIO_SYNCFS
1489 PPCODE:
1490{
1491 int fd = s_fileno_croak (fh, 0);
1492 dREQ;
1493
1494 req->type = ix;
1495 req->sv1 = newSVsv (fh);
1496 req->int1 = fd;
1497
1498 REQ_SEND;
1499}
1500
1501void
1502aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1503 PPCODE:
1504{
1505 int fd = s_fileno_croak (fh, 0);
1506 dREQ;
1507
1508 req->type = EIO_SYNC_FILE_RANGE;
1509 req->sv1 = newSVsv (fh);
1510 req->int1 = fd;
1511 req->offs = offset;
1512 req->size = nbytes;
1513 req->int2 = flags;
1514
1515 REQ_SEND;
1516}
1517
1518void
1519aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1520 PPCODE:
1521{
1522 int fd = s_fileno_croak (fh, 0);
1523 dREQ;
1524
1525 req->type = EIO_FALLOCATE;
1526 req->sv1 = newSVsv (fh);
1527 req->int1 = fd;
1528 req->int2 = mode;
1529 req->offs = offset;
1530 req->size = len;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_close (SV *fh, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 int fd = s_fileno_croak (fh, 0);
1540 dREQ;
1541#if 0
1542 /* partially duplicate logic in s_fileno */
1543 SvGETMAGIC (fh);
1544
1545 if (SvROK (fh))
793 { 1546 {
794 struct sendfilevec vec; 1547 fh = SvRV (fh);
795 size_t sbytes; 1548 SvGETMAGIC (fh);
796
797 vec.sfv_fd = ifd;
798 vec.sfv_flag = 0;
799 vec.sfv_off = offset;
800 vec.sfv_len = count;
801
802 res = sendfilev (ofd, &vec, 1, &sbytes);
803
804 if (res < 0 && sbytes)
805 res = sbytes;
806 } 1549 }
807 1550
808# endif 1551 if (SvTYPE (fh) == SVt_PVGV)
809#else
810 res = -1;
811 errno = ENOSYS;
812#endif
813
814 if (res < 0
815 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
816#if __solaris
817 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
818#endif
819 )
820 )
821 {
822 /* emulate sendfile. this is a major pain in the ass */
823 dBUF;
824
825 res = 0;
826
827 while (count)
828 {
829 ssize_t cnt;
830
831 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
832
833 if (cnt <= 0)
834 {
835 if (cnt && !res) res = -1;
836 break;
837 }
838
839 cnt = write (ofd, aio_buf, cnt);
840
841 if (cnt <= 0)
842 {
843 if (cnt && !res) res = -1;
844 break;
845 }
846
847 offset += cnt;
848 res += cnt;
849 count -= cnt;
850 }
851 }
852
853 return res;
854}
855
856/* read a full directory */
857static void scandir_ (aio_req req, worker *self)
858{
859 DIR *dirp;
860 union
861 {
862 struct dirent d;
863 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
864 } *u;
865 struct dirent *entp;
866 char *name, *names;
867 int memlen = 4096;
868 int memofs = 0;
869 int res = 0;
870 int errorno;
871
872 LOCK (wrklock);
873 self->dirp = dirp = opendir (req->dataptr);
874 self->dbuf = u = malloc (sizeof (*u));
875 req->data2ptr = names = malloc (memlen);
876 UNLOCK (wrklock);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 { 1552 {
891 int len = strlen (name) + 1; 1553 /* perl filehandle */
1554 PerlIOUnix_refcnt_inc (fd);
1555 do_close ((GV *)fh, 1);
892 1556
893 res++; 1557 req->type = EIO_CLOSE;
894 1558 req->int1 = fd;
895 while (memofs + len > memlen) 1559 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 } 1560 }
909 }
910
911 if (errno)
912 res = -1;
913
914 req->result = res;
915}
916
917/*****************************************************************************/
918
919static void *aio_proc (void *thr_arg)
920{
921 aio_req req;
922 int type;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 { 1561 else
931 self->req = req = reqq_shift (&req_queue); 1562#endif
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 { 1563 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1564 /* fd number */
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1565 req->type = EIO_DUP2;
949 1566 req->int1 = close_fd;
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1567 req->sv2 = newSVsv (fh);
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; 1568 req->int2 = fd;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 } 1569 }
988 1570
989 req->errorno = errno; 1571 REQ_SEND;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009} 1572}
1010 1573
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068}
1069
1070#define dREQ \
1071 aio_req req; \
1072 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \
1074 \
1075 if (SvOK (callback) && !SvROK (callback)) \
1076 croak ("callback must be undef or of reference type"); \
1077 \
1078 Newz (0, req, 1, aio_cb); \
1079 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \
1081 \
1082 req->callback = newSVsv (callback); \
1083 req->pri = req_pri
1084
1085#define REQ_SEND \
1086 req_send (req); \
1087 \
1088 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1090
1091MODULE = IO::AIO PACKAGE = IO::AIO
1092
1093PROTOTYPES: ENABLE
1094
1095BOOT:
1096{
1097 HV *stash = gv_stashpv ("IO::AIO", 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101
1102 create_pipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105
1106void 1574void
1107min_parallel (nthreads) 1575aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1108 int nthreads 1576 PPCODE:
1109 PROTOTYPE: $
1110
1111void
1112max_parallel (nthreads)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$
1123 PPCODE:
1124{ 1577{
1578 int fd = s_fileno_croak (fh, 0);
1125 dREQ; 1579 dREQ;
1126 1580
1127 req->type = REQ_OPEN; 1581 req->type = EIO_SEEK;
1128 req->data = newSVsv (pathname); 1582 req->sv1 = newSVsv (fh);
1129 req->dataptr = SvPVbyte_nolen (req->data); 1583 req->int1 = fd;
1130 req->fd = flags; 1584 req->offs = SvVAL64 (offset);
1131 req->mode = mode; 1585 req->int2 = whence;
1132 1586
1133 REQ_SEND; 1587 REQ_SEND;
1134} 1588}
1135 1589
1136void 1590void
1137aio_close (fh,callback=&PL_sv_undef) 1591aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 1592 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC
1145 PPCODE:
1146{
1147 dREQ;
1148
1149 req->type = ix;
1150 req->fh = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152
1153 REQ_SEND (req);
1154}
1155
1156void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS:
1165 aio_read = REQ_READ 1593 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 1594 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 1595 PPCODE:
1169{ 1596{
1170 aio_req req;
1171 STRLEN svlen; 1597 STRLEN svlen;
1598 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 1599 char *svptr = SvPVbyte (data, svlen);
1173 1600 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 1601
1177 if (dataoffset < 0) 1602 if (dataoffset < 0)
1178 dataoffset += svlen; 1603 dataoffset += svlen;
1179 1604
1180 if (dataoffset < 0 || dataoffset > svlen) 1605 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 1606 croak ("dataoffset outside of data scalar");
1182 1607
1183 if (ix == REQ_WRITE) 1608 if (ix == EIO_WRITE)
1184 { 1609 {
1185 /* write: check length and adjust. */ 1610 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 1611 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 1612 len = svlen - dataoffset;
1188 } 1613 }
1189 else 1614 else
1190 { 1615 {
1191 /* read: grow scalar as necessary */ 1616 /* read: check type and grow scalar as necessary */
1617 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1192 svptr = SvGROW (data, length + dataoffset); 1618 svptr = sv_grow (data, len + dataoffset + 1);
1619 else if (SvCUR (data) < len + dataoffset)
1620 croak ("length + dataoffset outside of scalar, and cannot grow");
1193 } 1621 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 1622
1198 { 1623 {
1199 dREQ; 1624 dREQ;
1200 1625
1201 req->type = ix; 1626 req->type = ix;
1202 req->fh = newSVsv (fh); 1627 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1628 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 1629 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 1630 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 1631 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 1632 req->ptr2 = (char *)svptr + dataoffset;
1633 req->stroffset = dataoffset;
1209 1634
1210 if (!SvREADONLY (data)) 1635 if (!SvREADONLY (data))
1211 { 1636 {
1212 SvREADONLY_on (data); 1637 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 1638 req->flags |= FLAG_SV2_RO_OFF;
1214 } 1639 }
1215 1640
1216 REQ_SEND; 1641 REQ_SEND;
1217 } 1642 }
1218} 1643}
1219 1644
1220void 1645void
1221aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1646aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1222 SV * out_fh 1647 ALIAS:
1223 SV * in_fh 1648 aio_ioctl = EIO_IOCTL
1224 UV in_offset 1649 aio_fcntl = EIO_FCNTL
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 1650 PPCODE:
1229{ 1651{
1230 dREQ; 1652 int fd = s_fileno_croak (fh, 0);
1653 char *svptr;
1231 1654
1232 req->type = REQ_SENDFILE; 1655 if (SvPOK (arg) || !SvNIOK (arg))
1233 req->fh = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235 req->fh2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237 req->offset = in_offset;
1238 req->length = length;
1239
1240 REQ_SEND;
1241}
1242
1243void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE:
1251{
1252 dREQ;
1253
1254 req->type = REQ_READAHEAD;
1255 req->fh = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257 req->offset = offset;
1258 req->length = length;
1259
1260 REQ_SEND;
1261}
1262
1263void
1264aio_stat (fh_or_path,callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS:
1268 aio_stat = REQ_STAT
1269 aio_lstat = REQ_LSTAT
1270 PPCODE:
1271{
1272 dREQ;
1273
1274 New (0, req->statdata, 1, Stat_t);
1275 if (!req->statdata)
1276 { 1656 {
1277 req_free (req); 1657 STRLEN svlen;
1278 croak ("out of memory during aio_req->statdata allocation"); 1658 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1279 } 1659#ifdef IOCPARM_LEN
1660 STRLEN need = IOCPARM_LEN (request);
1661#else
1662 STRLEN need = 256;
1663#endif
1280 1664
1281 if (SvPOK (fh_or_path)) 1665 if (svlen < need)
1282 { 1666 svptr = SvGROW (arg, need);
1283 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data);
1286 } 1667 }
1287 else 1668 else
1669 svptr = (char *)SvIV (arg);
1670
1288 { 1671 {
1672 dREQ;
1673
1289 req->type = REQ_FSTAT; 1674 req->type = ix;
1290 req->fh = newSVsv (fh_or_path); 1675 req->sv1 = newSVsv (fh);
1291 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1676 req->int1 = fd;
1677 req->int2 = (long)request;
1678 req->sv2 = SvREFCNT_inc (arg);
1679 req->ptr2 = svptr;
1680
1681 REQ_SEND;
1292 } 1682 }
1683}
1684
1685void
1686aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1687 ALIAS:
1688 aio_readlink = EIO_READLINK
1689 aio_realpath = EIO_REALPATH
1690 PPCODE:
1691{
1692 dREQ;
1693
1694 req->type = ix;
1695 req_set_path1 (req, pathname);
1293 1696
1294 REQ_SEND; 1697 REQ_SEND;
1295} 1698}
1296 1699
1297void 1700void
1298aio_unlink (pathname,callback=&PL_sv_undef) 1701aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1299 SV * pathname 1702 PPCODE:
1300 SV * callback 1703{
1704 int ifd = s_fileno_croak (in_fh , 0);
1705 int ofd = s_fileno_croak (out_fh, 1);
1706 dREQ;
1707
1708 req->type = EIO_SENDFILE;
1709 req->sv1 = newSVsv (out_fh);
1710 req->int1 = ofd;
1711 req->sv2 = newSVsv (in_fh);
1712 req->int2 = ifd;
1713 req->offs = in_offset;
1714 req->size = length;
1715
1716 REQ_SEND;
1717}
1718
1719void
1720aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1721 PPCODE:
1722{
1723 int fd = s_fileno_croak (fh, 0);
1724 dREQ;
1725
1726 req->type = EIO_READAHEAD;
1727 req->sv1 = newSVsv (fh);
1728 req->int1 = fd;
1729 req->offs = offset;
1730 req->size = length;
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1301 ALIAS: 1737 ALIAS:
1738 aio_stat = EIO_STAT
1739 aio_lstat = EIO_LSTAT
1740 aio_statvfs = EIO_STATVFS
1741 PPCODE:
1742{
1743 dREQ;
1744
1745 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1746
1747 REQ_SEND;
1748}
1749
1750void
1751st_xtime ()
1752 ALIAS:
1753 st_atime = 0x01
1754 st_mtime = 0x02
1755 st_ctime = 0x04
1756 st_btime = 0x08
1757 st_xtime = 0x0f
1758 PPCODE:
1759 EXTEND (SP, 4);
1760 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1761 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1762 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1763 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1764
1765void
1766st_xtimensec ()
1767 ALIAS:
1768 st_atimensec = 0x01
1769 st_mtimensec = 0x02
1770 st_ctimensec = 0x04
1771 st_btimensec = 0x08
1772 st_xtimensec = 0x0f
1773 st_btimesec = 0x10
1774 st_gen = 0x20
1775 PPCODE:
1776 EXTEND (SP, 4);
1777 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1778 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1779 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1780 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1781 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1782 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1783
1784UV
1785major (UV dev)
1786 ALIAS:
1787 minor = 1
1788 CODE:
1789 RETVAL = ix ? minor (dev) : major (dev);
1790 OUTPUT:
1791 RETVAL
1792
1793UV
1794makedev (UV maj, UV min)
1795 CODE:
1796 RETVAL = makedev (maj, min);
1797 OUTPUT:
1798 RETVAL
1799
1800void
1801aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1802 PPCODE:
1803{
1804 dREQ;
1805
1806 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1807 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1808 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1809
1810 REQ_SEND;
1811}
1812
1813void
1814aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1815 PPCODE:
1816{
1817 dREQ;
1818
1819 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1820 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1821
1822 REQ_SEND;
1823}
1824
1825void
1826aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1827 PPCODE:
1828{
1829 dREQ;
1830
1831 req->int2 = mode;
1832 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1833
1834 REQ_SEND;
1835}
1836
1837void
1838aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1839 PPCODE:
1840{
1841 dREQ;
1842
1843 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1844 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1845 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1846
1847 REQ_SEND;
1848}
1849
1850void
1851aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1852 PPCODE:
1853{
1854 dREQ;
1855
1856 req->type = EIO_READDIR;
1857 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1858
1859 if (flags & EIO_READDIR_DENTS)
1860 req->int1 |= EIO_READDIR_CUSTOM2;
1861
1862 req_set_path1 (req, pathname);
1863
1864 REQ_SEND;
1865}
1866
1867void
1868aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1869 PPCODE:
1870{
1871 dREQ;
1872
1873 req->type = EIO_MKDIR;
1874 req->int2 = mode;
1875 req_set_path1 (req, pathname);
1876
1877 REQ_SEND;
1878}
1879
1880void
1881aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1882 ALIAS:
1302 aio_unlink = REQ_UNLINK 1883 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1884 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1885 aio_readdir = EIO_READDIR
1305 PPCODE: 1886 PPCODE:
1306{ 1887{
1307 dREQ; 1888 dREQ;
1308 1889
1309 req->type = ix; 1890 req->type = ix;
1310 req->data = newSVsv (pathname); 1891 req_set_path1 (req, pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1892
1312
1313 REQ_SEND; 1893 REQ_SEND;
1314} 1894}
1315 1895
1316void 1896void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1897aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1898 ALIAS:
1322 aio_link = REQ_LINK 1899 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1900 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1901 aio_rename = EIO_RENAME
1325 PPCODE: 1902 PPCODE:
1326{ 1903{
1904 eio_wd wd2 = 0;
1327 dREQ; 1905 dREQ;
1328 1906
1329 req->type = ix; 1907 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1908 req_set_path1 (req, oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1909 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1332 req->data = newSVsv (newpath); 1910 req->int3 = (long)wd2;
1333 req->dataptr = SvPVbyte_nolen (req->data);
1334 1911
1335 REQ_SEND; 1912 REQ_SEND;
1336} 1913}
1337 1914
1338void 1915void
1339aio_busy (delay,callback=&PL_sv_undef) 1916aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1917 PPCODE:
1343{ 1918{
1919 eio_wd wd2 = 0;
1344 dREQ; 1920 dREQ;
1345 1921
1346 req->type = REQ_BUSY; 1922 req->type = EIO_RENAME;
1347 req->fd = delay < 0. ? 0 : delay; 1923 req_set_path1 (req, oldpath);
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1924 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1349 1925 req->int2 = flags;
1926 req->int3 = (long)wd2;
1927
1350 REQ_SEND; 1928 REQ_SEND;
1351} 1929}
1352 1930
1353void 1931void
1932aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1933 PPCODE:
1934{
1935 dREQ;
1936
1937 req->type = EIO_MKNOD;
1938 req->int2 = (mode_t)mode;
1939 req->offs = dev;
1940 req_set_path1 (req, pathname);
1941
1942 REQ_SEND;
1943}
1944
1945void
1946aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1947 ALIAS:
1948 aio_mtouch = EIO_MTOUCH
1949 aio_msync = EIO_MSYNC
1950 PPCODE:
1951{
1952 STRLEN svlen;
1953 char *svptr = SvPVbyte (data, svlen);
1954 UV len = SvUV (length);
1955
1956 if (flags < 0)
1957 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1958
1959 if (offset < 0)
1960 offset += svlen;
1961
1962 if (offset < 0 || offset > svlen)
1963 croak ("offset outside of scalar");
1964
1965 if (!SvOK (length) || len + offset > svlen)
1966 len = svlen - offset;
1967
1968 {
1969 dREQ;
1970
1971 req->type = ix;
1972 req->sv2 = SvREFCNT_inc (data);
1973 req->ptr2 = (char *)svptr + offset;
1974 req->size = len;
1975 req->int1 = flags;
1976
1977 REQ_SEND;
1978 }
1979}
1980
1981void
1982aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1983 PPCODE:
1984{
1985 STRLEN svlen;
1986 char *svptr = SvPVbyte (data, svlen);
1987 UV len = SvUV (length);
1988
1989 if (offset < 0)
1990 offset += svlen;
1991
1992 if (offset < 0 || offset > svlen)
1993 croak ("offset outside of scalar");
1994
1995 if (!SvOK (length) || len + offset > svlen)
1996 len = svlen - offset;
1997
1998 {
1999 dREQ;
2000
2001 req->type = EIO_MLOCK;
2002 req->sv2 = SvREFCNT_inc (data);
2003 req->ptr2 = (char *)svptr + offset;
2004 req->size = len;
2005
2006 REQ_SEND;
2007 }
2008}
2009
2010void
2011aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2012 PPCODE:
2013{
2014 dREQ;
2015
2016 req->type = EIO_MLOCKALL;
2017 req->int1 = flags;
2018
2019 REQ_SEND;
2020}
2021
2022void
2023aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2024 PPCODE:
2025{
2026 int fd = s_fileno_croak (fh, 0);
2027 dREQ;
2028
2029 req->type = EIO_CUSTOM;
2030 req->sv1 = newSVsv (fh);
2031 req->int1 = fd;
2032
2033 req->feed = fiemap;
2034#if HAVE_FIEMAP
2035 /* keep our fingers crossed that the next two types are 64 bit */
2036 req->offs = start;
2037 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2038 req->int2 = flags;
2039 req->int3 = SvOK (count) ? SvIV (count) : -1;
2040#endif
2041
2042 REQ_SEND;
2043}
2044
2045void
2046aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2047 PPCODE:
2048{
2049 char *svptr = 0;
2050
2051 sv_clear_foreign (data);
2052
2053 if (length) /* known length, directly read into scalar */
2054 {
2055 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2056 svptr = sv_grow (data, length + 1);
2057 else if (SvCUR (data) < length)
2058 croak ("length outside of scalar, and cannot grow");
2059 else
2060 svptr = SvPVbyte_nolen (data);
2061 }
2062
2063 {
2064 dREQ;
2065
2066 req->type = EIO_SLURP;
2067 req_set_path1 (req, pathname);
2068 req->offs = offset;
2069 req->size = length;
2070 req->sv2 = SvREFCNT_inc (data);
2071 req->ptr2 = svptr;
2072
2073 if (!SvREADONLY (data))
2074 {
2075 SvREADONLY_on (data);
2076 req->flags |= FLAG_SV2_RO_OFF;
2077 }
2078
2079 REQ_SEND;
2080 }
2081}
2082
2083void
2084aio_busy (double delay, SV *callback = &PL_sv_undef)
2085 PPCODE:
2086{
2087 dREQ;
2088
2089 req->type = EIO_BUSY;
2090 req->nv1 = delay < 0. ? 0. : delay;
2091
2092 REQ_SEND;
2093}
2094
2095void
1354aio_group (callback=&PL_sv_undef) 2096aio_group (SV *callback = &PL_sv_undef)
1355 SV * callback 2097 PPCODE:
2098{
2099 dREQ;
2100
2101 req->type = EIO_GROUP;
2102
2103 PUTBACK;
2104 req_submit (req);
2105 SPAGAIN;
2106
2107 XPUSHs (req_sv (req, aio_grp_stash));
2108}
2109
2110void
2111aio_nop (SV *callback = &PL_sv_undef)
2112 ALIAS:
2113 aio_nop = EIO_NOP
2114 aio_sync = EIO_SYNC
2115 PPCODE:
2116{
2117 dREQ;
2118
2119 req->type = ix;
2120
2121 REQ_SEND;
2122}
2123
2124int
2125aioreq_pri (int pri = NO_INIT)
2126 CODE:
2127 RETVAL = next_pri;
2128 if (items > 0)
2129 {
2130 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2131 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2132 next_pri = pri;
2133 }
2134 OUTPUT:
2135 RETVAL
2136
2137void
2138aioreq_nice (int nice = 0)
2139 CODE:
2140 nice = next_pri - nice;
2141 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2142 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2143 next_pri = nice;
2144
2145void
2146flush ()
2147 CODE:
2148 while (eio_nreqs ())
2149 {
2150 poll_wait ();
2151 poll_cb ();
2152 }
2153
2154int
2155poll ()
2156 CODE:
2157 poll_wait ();
2158 RETVAL = poll_cb ();
2159 OUTPUT:
2160 RETVAL
2161
2162int
2163poll_fileno ()
2164 CODE:
2165 RETVAL = s_epipe_fd (&respipe);
2166 OUTPUT:
2167 RETVAL
2168
2169int
2170poll_cb (...)
2171 PROTOTYPE:
2172 CODE:
2173 RETVAL = poll_cb ();
2174 OUTPUT:
2175 RETVAL
2176
2177void
2178poll_wait ()
2179 CODE:
2180 poll_wait ();
2181
2182int
2183nreqs ()
2184 CODE:
2185 RETVAL = eio_nreqs ();
2186 OUTPUT:
2187 RETVAL
2188
2189int
2190nready ()
2191 CODE:
2192 RETVAL = eio_nready ();
2193 OUTPUT:
2194 RETVAL
2195
2196int
2197npending ()
2198 CODE:
2199 RETVAL = eio_npending ();
2200 OUTPUT:
2201 RETVAL
2202
2203int
2204nthreads ()
2205 CODE:
2206 RETVAL = eio_nthreads ();
2207 OUTPUT:
2208 RETVAL
2209
2210int
2211fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2212 CODE:
2213 RETVAL = posix_fadvise (fh, offset, length, advice);
2214 OUTPUT:
2215 RETVAL
2216
2217IV
2218sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2219 CODE:
2220 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2221 OUTPUT:
2222 RETVAL
2223
2224void
2225mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2226 PPCODE:
2227 sv_clear_foreign (scalar);
2228{
2229 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2230 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2231 if (addr == (void *)-1)
2232 XSRETURN_NO;
2233
2234 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2235
2236 if (!(prot & PROT_WRITE))
2237 SvREADONLY_on (scalar);
2238
2239 XSRETURN_YES;
2240}
2241
2242void
2243munmap (SV *scalar)
2244 CODE:
2245 sv_clear_foreign (scalar);
2246
2247SV *
2248mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2249 CODE:
2250{
2251 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2252 void *new;
2253
2254 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2255 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2256
2257 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2258
2259 RETVAL = &PL_sv_no;
2260
2261 if (new != (void *)-1)
2262 {
2263 RETVAL = new == (void *)mg->mg_ptr
2264 ? newSVpvn ("0 but true", 10)
2265 : &PL_sv_yes;
2266
2267 mg->mg_ptr = (char *)new;
2268 mg->mg_obj = (SV *)new_length;
2269
2270 SvPVX (scalar) = mg->mg_ptr;
2271 SvCUR_set (scalar, new_length);
2272 }
2273}
2274 OUTPUT:
2275 RETVAL
2276
2277int
2278madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2279 ALIAS:
2280 mprotect = 1
2281 CODE:
2282{
2283 STRLEN svlen;
2284 void *addr = SvPVbyte (scalar, svlen);
2285 STRLEN len = SvUV (length);
2286
2287 if (offset < 0)
2288 offset += svlen;
2289
2290 if (offset < 0 || offset > svlen)
2291 croak ("offset outside of scalar");
2292
2293 if (!SvOK (length) || len + offset > svlen)
2294 len = svlen - offset;
2295
2296 addr = (void *)(((intptr_t)addr) + offset);
2297 eio_page_align (&addr, &len);
2298
2299 switch (ix)
2300 {
2301 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2302 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2303 }
2304}
2305 OUTPUT:
2306 RETVAL
2307
2308int
2309munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2310 CODE:
2311{
2312 STRLEN svlen;
2313 void *addr = SvPVbyte (scalar, svlen);
2314 size_t len = SvUV (length);
2315
2316 if (offset < 0)
2317 offset += svlen;
2318
2319 if (offset < 0 || offset > svlen)
2320 croak ("offset outside of scalar");
2321
2322 if (!SvOK (length) || len + offset > svlen)
2323 len = svlen - offset;
2324
2325 addr = (void *)(((intptr_t)addr) + offset);
2326 eio_page_align (&addr, &len);
2327#if _POSIX_MEMLOCK_RANGE
2328 RETVAL = munlock (addr, len);
2329#else
2330 RETVAL = EIO_ENOSYS ();
2331#endif
2332}
2333 OUTPUT:
2334 RETVAL
2335
2336int
2337mlockall (int flags)
2338 PROTOTYPE: $;
2339 CODE:
2340 RETVAL = eio_mlockall_sync (flags);
2341 OUTPUT:
2342 RETVAL
2343
2344int
2345munlockall ()
2346 CODE:
2347#if _POSIX_MEMLOCK
2348 munlockall ();
2349#else
2350 RETVAL = EIO_ENOSYS ();
2351#endif
2352 OUTPUT:
2353 RETVAL
2354
2355int
2356statx (SV8 *pathname, int flags, UV mask)
2357 CODE:
2358{
2359 /* undocumented, and might go away, and anyway, should use eio_statx */
2360 SV *wdsv = 0;
2361 SV *pathsv = 0;
2362 eio_wd wd = EIO_CWD;
2363 void *ptr;
2364 int res;
2365
2366 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2367 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2368
2369 SvREFCNT_dec (pathsv);
2370 SvREFCNT_dec (wdsv);
2371}
2372 OUTPUT:
2373 RETVAL
2374
2375U32
2376stx_mode ()
2377 PROTOTYPE:
2378 CODE:
2379#if HAVE_STATX
2380 RETVAL = stx.stx_mode;
2381#else
2382 XSRETURN_UNDEF;
2383#endif
2384 OUTPUT:
2385 RETVAL
2386
2387#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2388#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2389#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2390#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2391#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2392#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2393#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2394#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2395#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2396#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2397#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2398#define STATX_OFFSET_size statx_offsetof (stx_size)
2399#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2400#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2401#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2402#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2403#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2404#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2405
2406U32
2407stx_mask ()
2408 PROTOTYPE:
2409 ALIAS:
2410 stx_mask = STATX_OFFSET_mask
2411 stx_blksize = STATX_OFFSET_blksize
2412 stx_nlink = STATX_OFFSET_nlink
2413 stx_uid = STATX_OFFSET_uid
2414 stx_gid = STATX_OFFSET_gid
2415 stx_rdev_major = STATX_OFFSET_rdev_major
2416 stx_rdev_minor = STATX_OFFSET_rdev_minor
2417 stx_dev_major = STATX_OFFSET_dev_major
2418 stx_dev_minor = STATX_OFFSET_dev_minor
2419 CODE:
2420#if HAVE_STATX
2421 RETVAL = *(__u32 *)((char *)&stx + ix);
2422#else
2423 XSRETURN_UNDEF;
2424#endif
2425 OUTPUT:
2426 RETVAL
2427
2428VAL64
2429stx_attributes ()
2430 PROTOTYPE:
2431 ALIAS:
2432 stx_attributes = STATX_OFFSET_attributes
2433 stx_ino = STATX_OFFSET_ino
2434 stx_size = STATX_OFFSET_size
2435 stx_blocks = STATX_OFFSET_blocks
2436 stx_attributes_mask = STATX_OFFSET_attributes_mask
2437 CODE:
2438#if HAVE_STATX
2439 RETVAL = *(__u64 *)((char *)&stx + ix);
2440#else
2441 XSRETURN_UNDEF;
2442#endif
2443 OUTPUT:
2444 RETVAL
2445
2446NV
2447stx_atime ()
2448 PROTOTYPE:
2449 ALIAS:
2450 stx_atime = STATX_OFFSET_atime
2451 stx_btime = STATX_OFFSET_btime
2452 stx_ctime = STATX_OFFSET_ctime
2453 stx_mtime = STATX_OFFSET_mtime
2454 CODE:
2455#if HAVE_STATX
2456 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2457 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2458#else
2459 XSRETURN_UNDEF;
2460#endif
2461 OUTPUT:
2462 RETVAL
2463
2464VAL64
2465stx_atimesec ()
2466 PROTOTYPE:
2467 ALIAS:
2468 stx_atimesec = STATX_OFFSET_atime
2469 stx_btimesec = STATX_OFFSET_btime
2470 stx_ctimesec = STATX_OFFSET_ctime
2471 stx_mtimesec = STATX_OFFSET_mtime
2472 CODE:
2473#if HAVE_STATX
2474 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2475 RETVAL = ts->tv_sec;
2476#else
2477 XSRETURN_UNDEF;
2478#endif
2479 OUTPUT:
2480 RETVAL
2481
2482U32
2483stx_atimensec ()
2484 PROTOTYPE:
2485 ALIAS:
2486 stx_atimensec = STATX_OFFSET_atime
2487 stx_btimensec = STATX_OFFSET_btime
2488 stx_ctimensec = STATX_OFFSET_ctime
2489 stx_mtimensec = STATX_OFFSET_mtime
2490 CODE:
2491#if HAVE_STATX
2492 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2493 RETVAL = ts->tv_nsec;
2494#else
2495 RETVAL = 0;
2496#endif
2497 OUTPUT:
2498 RETVAL
2499
2500void
2501accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2502 PPCODE:
2503{
2504 SV *retval;
2505#if HAVE_ACCEPT4
2506 socklen_t salen_ = salen ? salen + 1 : 0;
2507
2508 if (salen)
2509 {
2510 sv_upgrade (sockaddr, SVt_PV);
2511 sv_grow (sockaddr, salen_);
2512 }
2513
2514 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2515
2516 retval = newmortalFH (res, O_RDWR);
2517
2518 if (res >= 0 && salen > 0)
2519 {
2520 if (salen_ > salen + 1)
2521 salen_ = salen + 1;
2522
2523 SvPOK_only (sockaddr);
2524 SvCUR_set (sockaddr, salen_);
2525 }
2526#else
2527 errno = ENOSYS;
2528 retval = &PL_sv_undef;
2529#endif
2530 XPUSHs (retval);
2531}
2532
2533int
2534splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2535 CODE:
2536{
2537#if HAVE_LINUX_SPLICE
2538 loff_t off_in_, off_out_;
2539 RETVAL = splice (
2540 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2541 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2542 length, flags
2543 );
2544#else
2545 RETVAL = EIO_ENOSYS ();
2546#endif
2547}
2548 OUTPUT:
2549 RETVAL
2550
2551int
2552tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2553 CODE:
2554#if HAVE_LINUX_SPLICE
2555 RETVAL = tee (rfh, wfh, length, flags);
2556#else
2557 RETVAL = EIO_ENOSYS ();
2558#endif
2559 OUTPUT:
2560 RETVAL
2561
2562int
2563pipesize (aio_rfd rfh, int new_size = -1)
2564 PROTOTYPE: $;$
2565 CODE:
2566#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2567 if (new_size >= 0)
2568 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2569 else
2570 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2571#else
2572 errno = ENOSYS;
2573 RETVAL = -1;
2574#endif
2575 OUTPUT:
2576 RETVAL
2577
2578void
2579pipe2 (int flags = 0)
1356 PROTOTYPE: ;$ 2580 PROTOTYPE: ;$
1357 PPCODE: 2581 PPCODE:
1358{ 2582{
1359 dREQ; 2583 int fd[2];
2584 int res;
1360 2585
1361 req->type = REQ_GROUP; 2586 if (flags)
1362 req_send (req); 2587#if HAVE_PIPE2
2588 res = pipe2 (fd, flags);
2589#else
2590 res = (errno = ENOSYS, -1);
2591#endif
2592 else
2593 res = pipe (fd);
1363 2594
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2595 if (!res)
2596 {
2597 EXTEND (SP, 2);
2598 PUSHs (newmortalFH (fd[0], O_RDONLY));
2599 PUSHs (newmortalFH (fd[1], O_WRONLY));
2600 }
1365} 2601}
1366 2602
1367void 2603void
1368aio_nop (callback=&PL_sv_undef) 2604eventfd (unsigned int initval = 0, int flags = 0)
1369 SV * callback
1370 PPCODE: 2605 PPCODE:
1371{ 2606{
1372 dREQ; 2607 int fd;
1373 2608#if HAVE_EVENTFD
1374 req->type = REQ_NOP; 2609 fd = eventfd (initval, flags);
1375 2610#else
1376 REQ_SEND; 2611 fd = (errno = ENOSYS, -1);
2612#endif
2613
2614 XPUSHs (newmortalFH (fd, O_RDWR));
1377} 2615}
1378 2616
1379void 2617void
1380aioreq_pri (int pri = DEFAULT_PRI) 2618timerfd_create (int clockid, int flags = 0)
1381 CODE: 2619 PPCODE:
1382 if (pri < PRI_MIN) pri = PRI_MIN; 2620{
1383 if (pri > PRI_MAX) pri = PRI_MAX; 2621 int fd;
1384 next_pri = pri + PRI_BIAS; 2622#if HAVE_TIMERFD
2623 fd = timerfd_create (clockid, flags);
2624#else
2625 fd = (errno = ENOSYS, -1);
2626#endif
2627
2628 XPUSHs (newmortalFH (fd, O_RDWR));
2629}
1385 2630
1386void 2631void
1387aioreq_nice (int nice = 0) 2632timerfd_settime (SV *fh, int flags, NV interval, NV value)
1388 CODE: 2633 PPCODE:
1389 nice = next_pri - nice; 2634{
1390 if (nice < PRI_MIN) nice = PRI_MIN; 2635 int fd = s_fileno_croak (fh, 0);
1391 if (nice > PRI_MAX) nice = PRI_MAX; 2636#if HAVE_TIMERFD
1392 next_pri = nice + PRI_BIAS; 2637 int res;
2638 struct itimerspec its, ots;
1393 2639
2640 ts_set (&its.it_interval, interval);
2641 ts_set (&its.it_value , value);
2642 res = timerfd_settime (fd, flags, &its, &ots);
2643
2644 if (!res)
2645 {
2646 EXTEND (SP, 2);
2647 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2648 PUSHs (newSVnv (ts_get (&ots.it_value)));
2649 }
2650#else
2651 errno = ENOSYS;
2652#endif
2653}
2654
1394void 2655void
1395flush () 2656timerfd_gettime (SV *fh)
1396 PROTOTYPE: 2657 PPCODE:
2658{
2659 int fd = s_fileno_croak (fh, 0);
2660#if HAVE_TIMERFD
2661 int res;
2662 struct itimerspec ots;
2663 res = timerfd_gettime (fd, &ots);
2664
2665 if (!res)
2666 {
2667 EXTEND (SP, 2);
2668 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2669 PUSHs (newSVnv (ts_get (&ots.it_value)));
2670 }
2671#else
2672 errno = ENOSYS;
2673#endif
2674}
2675
2676void
2677memfd_create (SV8 *pathname, int flags = 0)
2678 PPCODE:
2679{
2680 int fd;
2681#if HAVE_MEMFD_CREATE
2682 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2683#else
2684 fd = (errno = ENOSYS, -1);
2685#endif
2686
2687 XPUSHs (newmortalFH (fd, O_RDWR));
2688}
2689
2690UV
2691get_fdlimit ()
1397 CODE: 2692 CODE:
1398 while (nreqs) 2693#if HAVE_RLIMITS
2694 struct rlimit rl;
2695 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2696 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2697#endif
2698 XSRETURN_UNDEF;
2699 OUTPUT:
2700 RETVAL
2701
2702void
2703min_fdlimit (UV limit = 0x7fffffffU)
2704 CODE:
2705{
2706#if HAVE_RLIMITS
2707 struct rlimit rl;
2708 rlim_t orig_rlim_max;
2709 UV bit;
2710
2711 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2712 goto fail;
2713
2714 if (rl.rlim_cur == RLIM_INFINITY)
2715 XSRETURN_YES;
2716
2717 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2718
2719 if (rl.rlim_cur < limit)
1399 { 2720 {
1400 poll_wait (); 2721 rl.rlim_cur = limit;
1401 poll_cb (0); 2722
2723 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2724 rl.rlim_max = rl.rlim_cur;
1402 } 2725 }
1403 2726
1404void 2727 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
1405poll() 2728 XSRETURN_YES;
1406 PROTOTYPE: 2729
2730 if (errno == EPERM)
2731 {
2732 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2733 /* our limit overflows a system-wide limit */
2734 /* try an adaptive algorithm, but do not lower the hardlimit */
2735 rl.rlim_max = 0;
2736 for (bit = 0x40000000U; bit; bit >>= 1)
2737 {
2738 rl.rlim_max |= bit;
2739 rl.rlim_cur = rl.rlim_max;
2740
2741 /* nevr decrease the hard limit */
2742 if (rl.rlim_max < orig_rlim_max)
2743 break;
2744
2745 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2746 rl.rlim_max &= ~bit; /* too high, remove bit again */
2747 }
2748
2749 /* now, raise the soft limit to the max permitted */
2750 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2751 {
2752 rl.rlim_cur = rl.rlim_max;
2753 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2754 errno = EPERM;
2755 }
2756 }
2757#endif
2758 fail:
2759 XSRETURN_UNDEF;
2760}
2761
2762void _on_next_submit (SV *cb)
1407 CODE: 2763 CODE:
1408 if (nreqs) 2764 SvREFCNT_dec (on_next_submit);
1409 { 2765 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1410 poll_wait ();
1411 poll_cb (0);
1412 }
1413 2766
1414int 2767PROTOTYPES: DISABLE
1415poll_fileno() 2768
1416 PROTOTYPE: 2769MODULE = IO::AIO PACKAGE = IO::AIO::WD
2770
2771BOOT:
2772{
2773 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2774 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2775}
2776
2777void
2778DESTROY (SV *self)
1417 CODE: 2779 CODE:
1418 RETVAL = respipe [0]; 2780{
1419 OUTPUT: 2781 aio_wd wd = SvAIO_WD (self);
1420 RETVAL 2782#if HAVE_AT
1421 2783 {
1422int 2784 SV *callback = &PL_sv_undef;
1423poll_cb(...) 2785 dREQ; /* clobbers next_pri :/ */
1424 PROTOTYPE: 2786 next_pri = req->pri; /* restore next_pri */
1425 CODE: 2787 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1426 RETVAL = poll_cb (0); 2788 req->type = EIO_WD_CLOSE;
1427 OUTPUT: 2789 req->wd = wd;
1428 RETVAL 2790 REQ_SEND;
1429 2791 }
1430int 2792#else
1431poll_some(int max = 0) 2793 eio_wd_close_sync (wd);
1432 PROTOTYPE: $ 2794#endif
1433 CODE: 2795}
1434 RETVAL = poll_cb (max);
1435 OUTPUT:
1436 RETVAL
1437
1438void
1439poll_wait()
1440 PROTOTYPE:
1441 CODE:
1442 if (nreqs)
1443 poll_wait ();
1444
1445int
1446nreqs()
1447 PROTOTYPE:
1448 CODE:
1449 RETVAL = nreqs;
1450 OUTPUT:
1451 RETVAL
1452
1453PROTOTYPES: DISABLE
1454 2796
1455MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2797MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456 2798
1457void 2799void
1458cancel (aio_req_ornot req) 2800cancel (aio_req_ornot req)
1459 CODE: 2801 CODE:
1460 req_cancel (req); 2802 eio_cancel (req);
1461 2803
1462void 2804void
1463cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2805cb (aio_req_ornot req, SV *callback = NO_INIT)
1464 CODE: 2806 PPCODE:
2807{
2808 if (GIMME_V != G_VOID)
2809 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2810
2811 if (items > 1)
2812 {
2813 SV *cb_cv = get_cb (callback);
2814
1465 SvREFCNT_dec (req->callback); 2815 SvREFCNT_dec (req->callback);
1466 req->callback = newSVsv (callback); 2816 req->callback = SvREFCNT_inc (cb_cv);
2817 }
2818}
1467 2819
1468MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2820MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1469 2821
1470void 2822void
1471add (aio_req grp, ...) 2823add (aio_req grp, ...)
1472 PPCODE: 2824 PPCODE:
1473{ 2825{
1474 int i; 2826 int i;
1475 aio_req req;
1476 2827
1477 if (grp->fd == 2) 2828 if (grp->int1 == 2)
1478 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2829 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1479 2830
1480 for (i = 1; i < items; ++i ) 2831 for (i = 1; i < items; ++i )
1481 { 2832 {
2833 aio_req req;
2834
1482 if (GIMME_V != G_VOID) 2835 if (GIMME_V != G_VOID)
1483 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2836 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1484 2837
1485 req = SvAIO_REQ (ST (i)); 2838 req = SvAIO_REQ (ST (i));
1486 2839
1487 if (req) 2840 if (req)
1488 { 2841 eio_grp_add (grp, req);
1489 ++grp->length;
1490 req->grp = grp;
1491
1492 req->grp_prev = 0;
1493 req->grp_next = grp->grp_first;
1494
1495 if (grp->grp_first)
1496 grp->grp_first->grp_prev = req;
1497
1498 grp->grp_first = req;
1499 }
1500 } 2842 }
1501} 2843}
1502 2844
1503void 2845void
1504cancel_subs (aio_req_ornot req) 2846cancel_subs (aio_req_ornot req)
… …
1508void 2850void
1509result (aio_req grp, ...) 2851result (aio_req grp, ...)
1510 CODE: 2852 CODE:
1511{ 2853{
1512 int i; 2854 int i;
2855 AV *av;
2856
2857 grp->errorno = errno;
2858
1513 AV *av = newAV (); 2859 av = newAV ();
2860 av_extend (av, items - 1);
1514 2861
1515 for (i = 1; i < items; ++i ) 2862 for (i = 1; i < items; ++i )
1516 av_push (av, newSVsv (ST (i))); 2863 av_push (av, newSVsv (ST (i)));
1517 2864
1518 SvREFCNT_dec (grp->data); 2865 SvREFCNT_dec (grp->sv1);
1519 grp->data = (SV *)av; 2866 grp->sv1 = (SV *)av;
1520} 2867}
2868
2869void
2870errno (aio_req grp, int errorno = errno)
2871 CODE:
2872 grp->errorno = errorno;
1521 2873
1522void 2874void
1523limit (aio_req grp, int limit) 2875limit (aio_req grp, int limit)
1524 CODE: 2876 CODE:
1525 grp->fd2 = limit; 2877 eio_grp_limit (grp, limit);
1526 aio_grp_feed (grp);
1527 2878
1528void 2879void
1529feed (aio_req grp, SV *callback=&PL_sv_undef) 2880feed (aio_req grp, SV *callback = &PL_sv_undef)
1530 CODE: 2881 CODE:
1531{ 2882{
1532 SvREFCNT_dec (grp->fh2); 2883 SvREFCNT_dec (grp->sv2);
1533 grp->fh2 = newSVsv (callback); 2884 grp->sv2 = newSVsv (callback);
2885 grp->feed = aio_grp_feed;
1534 2886
1535 if (grp->fd2 <= 0) 2887 if (grp->int2 <= 0)
1536 grp->fd2 = 2; 2888 grp->int2 = 2;
1537 2889
1538 aio_grp_feed (grp); 2890 eio_grp_limit (grp, grp->int2);
1539} 2891}
1540 2892

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