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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.79 by root, Thu Oct 26 16:28:33 2006 UTC vs.
Revision 1.285 by root, Tue Dec 29 15:16:28 2020 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
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
57 221
58#if __ia64 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
59# define STACKSIZE 65536 223#ifdef __sun
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 224# undef PAGESIZE
61# define STACKSIZE PTHREAD_STACK_MIN 225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231#if HAVE_SYSCALL
232#include <sys/syscall.h>
62#else 233#else
63# define STACKSIZE 16384 234# define syscall(nr,...) (errno = ENOSYS, -1)
64#endif
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 235#endif
76#endif
77 236
78/* buffer size for various temporary buffers */ 237/*****************************************************************************/
79#define AIO_BUFSIZE 65536
80 238
81#define dBUF \ 239#if !_POSIX_MAPPED_FILES
82 char *aio_buf; \ 240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
83 LOCK (wrklock); \ 241# define munmap(addr,length) EIO_ENOSYS ()
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 242#endif
85 UNLOCK (wrklock); \ 243
86 if (!aio_buf) \ 244#if !_POSIX_MEMORY_PROTECTION
245# define mprotect(addr,len,prot) EIO_ENOSYS ()
246#endif
247
248#if !MREMAP_MAYMOVE
249# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
250#endif
251
252#define FOREIGN_MAGIC PERL_MAGIC_ext
253
254static int ecb_cold
255mmap_free (pTHX_ SV *sv, MAGIC *mg)
256{
257 int old_errno = errno;
258 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
259 errno = old_errno;
260
261 mg->mg_obj = 0; /* just in case */
262
263 SvREADONLY_off (sv);
264
265 if (SvPVX (sv) != mg->mg_ptr)
266 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
267
268 SvCUR_set (sv, 0);
269 SvPVX (sv) = 0;
270 SvOK_off (sv);
271
87 return -1; 272 return 0;
273}
88 274
89enum { 275static MGVTBL mmap_vtbl = {
90 REQ_QUIT, 276 0, 0, 0, 0, mmap_free
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101}; 277};
102 278
103#define AIO_REQ_KLASS "IO::AIO::REQ" 279static int ecb_cold
104#define AIO_GRP_KLASS "IO::AIO::GRP" 280sysfree_free (pTHX_ SV *sv, MAGIC *mg)
105
106typedef struct aio_cb
107{ 281{
108 struct aio_cb *volatile next; 282 free (mg->mg_ptr);
283 mg->mg_obj = 0; /* just in case */
109 284
110 SV *data, *callback; 285 SvREADONLY_off (sv);
111 SV *fh, *fh2;
112 void *dataptr, *data2ptr;
113 Stat_t *statdata;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 286
118 STRLEN dataoffset; 287 if (SvPVX (sv) != mg->mg_ptr)
119 int type; 288 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123 289
124 unsigned char flags; 290 SvCUR_set (sv, 0);
125 unsigned char pri; 291 SvPVX (sv) = 0;
292 SvOK_off (sv);
126 293
127 SV *self; /* the perl counterpart of this request, if any */ 294 return 0;
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 295}
129} aio_cb;
130 296
131enum { 297static MGVTBL sysfree_vtbl = {
132 FLAG_CANCELLED = 0x01, 298 0, 0, 0, 0, sysfree_free
133}; 299};
134 300
135typedef aio_cb *aio_req; 301/*****************************************************************************/
136typedef aio_cb *aio_req_ornot;
137 302
138enum { 303/* helper: set scalar to foreign ptr with custom free */
139 PRI_MIN = -4, 304ecb_noinline
140 PRI_MAX = 4, 305static void
141 306sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
142 DEFAULT_PRI = 0,
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150static volatile unsigned int nreqs, nready, npending;
151static volatile unsigned int max_outstanding = 0xffffffff;
152static int respipe [2];
153
154#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
155# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
156#else
157# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
158#endif
159
160#define LOCK(mutex) pthread_mutex_lock (&(mutex))
161#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
162
163/* worker threads management */
164static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
165
166typedef struct worker {
167 /* locked by wrklock */
168 struct worker *prev, *next;
169
170 pthread_t tid;
171
172 /* locked by reslock, reqlock or wrklock */
173 aio_req req; /* currently processed request */
174 void *dbuf;
175 DIR *dirp;
176} worker;
177
178static worker wrk_first = { &wrk_first, &wrk_first, 0 };
179
180static void worker_clear (worker *wrk)
181{ 307{
182 if (wrk->dirp) 308 sv_force_normal (sv);
309
310 /* we store the length in mg_obj, as namlen is I32 :/ */
311 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
312 ->mg_obj = (SV *)length;
313
314 SvUPGRADE (sv, SVt_PV); /* nop... */
315
316 if (SvLEN (sv))
317 Safefree (SvPVX (sv));
318
319 SvPVX (sv) = (char *)addr;
320 SvCUR_set (sv, length);
321 SvLEN_set (sv, 0);
322 SvPOK_only (sv);
323}
324
325static void
326sv_clear_foreign (SV *sv)
327{
328 /* todo: iterate over magic and only free ours, but of course */
329 /* the perl5porters will call that (correct) behaviour buggy */
330 sv_unmagic (sv, FOREIGN_MAGIC);
331}
332
333/*****************************************************************************/
334
335/* defines all sorts of constants to 0 unless they are already defined */
336/* also provides const_iv_ and const_niv_ macros for them */
337#include "def0.h"
338
339/*****************************************************************************/
340
341static void
342fiemap (eio_req *req)
343{
344 req->result = -1;
345
346#if HAVE_FIEMAP
347 /* assume some c99 */
348 struct fiemap *fiemap = 0;
349 size_t end_offset;
350 int count = req->int3;
351
352 req->flags |= EIO_FLAG_PTR1_FREE;
353
354 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
355 /* increase in fixed steps */
356 if (count < 0)
357 count = 8;
358
359 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 errno = ENOMEM;
361 if (!fiemap)
362 return;
363
364 req->ptr1 = fiemap;
365
366 fiemap->fm_start = req->offs;
367 fiemap->fm_length = req->size;
368 fiemap->fm_flags = req->int2;
369 fiemap->fm_extent_count = count;
370
371 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
372 return;
373
374 if (req->int3 >= 0 /* not autosizing */
375 || !fiemap->fm_mapped_extents /* no more extents */
376 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
377 goto done;
378
379 /* else we have to loop -
380 * it would be tempting (actually I tried that first) to just query the
381 * number of extents needed, but linux often feels like not returning all
382 * extents, without telling us it left any out. this complicates
383 * this quite a bit.
384 */
385
386 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
387
388 for (;;)
183 { 389 {
184 closedir (wrk->dirp); 390 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
185 wrk->dirp = 0; 391 char scratch[3072];
186 } 392 struct fiemap *incmap = (struct fiemap *)scratch;
187 393
188 if (wrk->dbuf) 394 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
189 { 395 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
190 free (wrk->dbuf); 396 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
191 wrk->dbuf = 0; 397 incmap->fm_flags = fiemap->fm_flags;
192 } 398 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
193}
194 399
195static void worker_free (worker *wrk) 400 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
196{
197 wrk->next->prev = wrk->prev;
198 wrk->prev->next = wrk->next;
199
200 free (wrk);
201}
202
203static pthread_mutex_t reslock = AIO_MUTEX_INIT;
204static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
205static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
206
207/*
208 * a somewhat faster data structure might be nice, but
209 * with 8 priorities this actually needs <20 insns
210 * per shift, the most expensive operation.
211 */
212typedef struct {
213 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
214 int size;
215} reqq;
216
217static reqq req_queue;
218static reqq res_queue;
219
220int reqq_push (reqq *q, aio_req req)
221{
222 int pri = req->pri;
223 req->next = 0;
224
225 if (q->qe[pri])
226 {
227 q->qe[pri]->next = req;
228 q->qe[pri] = req;
229 }
230 else
231 q->qe[pri] = q->qs[pri] = req;
232
233 return q->size++;
234}
235
236aio_req reqq_shift (reqq *q)
237{
238 int pri;
239
240 if (!q->size)
241 return 0; 401 return;
242 402
243 --q->size; 403 if (!incmap->fm_mapped_extents)
404 goto done;
244 405
245 for (pri = NUM_PRI; pri--; ) 406 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
246 { 407 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
247 aio_req req = q->qs[pri]; 408 errno = ENOMEM;
248
249 if (req) 409 if (!fiemap)
410 return;
411
412 req->ptr1 = fiemap;
413
414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
250 { 415 {
251 if (!(q->qs[pri] = req->next)) 416 struct fiemap_extent *e = incmap->fm_extents + count;
252 q->qe[pri] = 0;
253 417
254 return req; 418 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
419
420 if (e->fe_logical >= end_offset)
421 goto done;
422
423 if (e->fe_flags & FIEMAP_EXTENT_LAST)
424 goto done;
425
255 } 426 }
256 } 427 }
257 428
258 abort (); 429done:
259} 430 req->result = 0;
260 431
261static int poll_cb (int max); 432#else
262static void req_invoke (aio_req req); 433 errno = ENOSYS;
434#endif
435}
436
437/*****************************************************************************/
438
439static int close_fd; /* dummy fd to close fds via dup2 */
440
441#if HAVE_STATX
442static struct statx stx;
443#define statx_offsetof(member) offsetof (struct statx, member)
444#define eio__statx statx
445#else
446#define statx_offsetof(member) 0
447#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
448#endif
449
450enum {
451 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
452};
453
454typedef eio_req *aio_req;
455typedef eio_req *aio_req_ornot;
456typedef eio_wd aio_wd;
457
458static SV *on_next_submit;
459static int next_pri = EIO_PRI_DEFAULT;
460static int max_outstanding;
461
462static s_epipe respipe;
463
263static void req_free (aio_req req); 464static void req_destroy (aio_req req);
264static void req_cancel (aio_req req); 465static void req_cancel (aio_req req);
265 466
467static void
468want_poll (void)
469{
470 /* write a dummy byte to the pipe so fh becomes ready */
471 s_epipe_signal (&respipe);
472}
473
474static void
475done_poll (void)
476{
477 /* read any signals sent by the worker threads */
478 s_epipe_drain (&respipe);
479}
480
266/* must be called at most once */ 481/* must be called at most once */
267static SV *req_sv (aio_req req, const char *klass) 482ecb_noinline
483static SV *
484req_sv (aio_req req, HV *stash)
268{ 485{
269 if (!req->self) 486 if (!req->self)
270 { 487 {
271 req->self = (SV *)newHV (); 488 req->self = (SV *)newHV ();
272 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 489 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
273 } 490 }
274 491
275 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 492 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
276} 493}
277 494
278static aio_req SvAIO_REQ (SV *sv) 495static SV *
496newSVaio_wd (aio_wd wd)
497{
498 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
499}
500
501ecb_noinline
502static aio_req
503SvAIO_REQ (SV *sv)
279{ 504{
280 MAGIC *mg; 505 MAGIC *mg;
281 506
282 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 507 if (!SvROK (sv)
508 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
509 || (SvSTASH (SvRV (sv)) != aio_grp_stash
510 && SvSTASH (SvRV (sv)) != aio_req_stash
511 && !sv_derived_from (sv, "IO::AIO::REQ")))
283 croak ("object of class " AIO_REQ_KLASS " expected"); 512 croak ("object of class IO::AIO::REQ expected");
284 513
285 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 514 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
286 515
287 return mg ? (aio_req)mg->mg_ptr : 0; 516 return mg ? (aio_req)mg->mg_ptr : 0;
288} 517}
289 518
519static aio_wd
520SvAIO_WD (SV *sv)
521{
522 if (!SvROK (sv)
523 || SvTYPE (SvRV (sv)) != SVt_PVMG
524 || SvSTASH (SvRV (sv)) != aio_wd_stash)
525 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
526
527 return (aio_wd)(long)SvIVX (SvRV (sv));
528}
529
530static SV *
531newmortalFH (int fd, int flags)
532{
533 if (fd < 0)
534 return &PL_sv_undef;
535
536 GV *gv = (GV *)sv_newmortal ();
537 char sym[64];
538 int symlen;
539
540 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
541 gv_init (gv, aio_stash, sym, symlen, 0);
542
543 symlen = snprintf (
544 sym,
545 sizeof (sym),
546 "%s&=%d",
547 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
548 fd
549 );
550
551 return do_open (gv, sym, symlen, 0, 0, 0, 0)
552 ? (SV *)gv : &PL_sv_undef;
553}
554
555static void
290static void aio_grp_feed (aio_req grp) 556aio_grp_feed (aio_req grp)
291{ 557{
292 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 558 if (grp->sv2 && SvOK (grp->sv2))
293 { 559 {
294 int old_len = grp->length;
295
296 if (grp->fh2 && SvOK (grp->fh2))
297 {
298 dSP; 560 dSP;
299 561
300 ENTER; 562 ENTER;
301 SAVETMPS; 563 SAVETMPS;
302 PUSHMARK (SP); 564 PUSHMARK (SP);
303 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 565 XPUSHs (req_sv (grp, aio_grp_stash));
304 PUTBACK; 566 PUTBACK;
305 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 567 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
306 SPAGAIN; 568 SPAGAIN;
307 FREETMPS; 569 FREETMPS;
308 LEAVE; 570 LEAVE;
309 }
310
311 /* stop if no progress has been made */
312 if (old_len == grp->length)
313 {
314 SvREFCNT_dec (grp->fh2);
315 grp->fh2 = 0;
316 break;
317 }
318 } 571 }
319} 572}
320 573
321static void aio_grp_dec (aio_req grp) 574ecb_noinline
575static void
576req_submit (eio_req *req)
322{ 577{
323 --grp->length; 578 eio_submit (req);
324 579
325 /* call feeder, if applicable */ 580 if (expect_false (on_next_submit))
326 aio_grp_feed (grp);
327
328 /* finish, if done */
329 if (!grp->length && grp->fd)
330 { 581 {
331 req_invoke (grp); 582 dSP;
332 req_free (grp); 583 SV *cb = sv_2mortal (on_next_submit);
584
585 on_next_submit = 0;
586
587 PUSHMARK (SP);
588 PUTBACK;
589 call_sv (cb, G_DISCARD | G_EVAL);
333 } 590 }
334} 591}
335 592
336static void poll_wait () 593static int
594req_invoke (eio_req *req)
337{ 595{
338 fd_set rfd; 596 if (req->flags & FLAG_SV2_RO_OFF)
597 SvREADONLY_off (req->sv2);
339 598
340 while (nreqs) 599 if (!EIO_CANCELLED (req) && req->callback)
341 { 600 {
342 int size;
343 if (WORDREAD_UNSAFE) LOCK (reslock);
344 size = res_queue.size;
345 if (WORDREAD_UNSAFE) UNLOCK (reslock);
346
347 if (size)
348 return;
349
350 FD_ZERO(&rfd);
351 FD_SET(respipe [0], &rfd);
352
353 select (respipe [0] + 1, &rfd, 0, 0, 0);
354 }
355}
356
357static void req_invoke (aio_req req)
358{
359 dSP; 601 dSP;
602 static SV *sv_result_cache; /* caches the result integer SV */
603 SV *sv_result;
360 604
361 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
362 {
363 ENTER; 605 ENTER;
364 SAVETMPS; 606 SAVETMPS;
365 PUSHMARK (SP); 607 PUSHMARK (SP);
366 EXTEND (SP, 1); 608 EXTEND (SP, 1);
367 609
610 /* do not recreate the result IV from scratch each time */
611 if (expect_true (sv_result_cache))
612 {
613 sv_result = sv_result_cache; sv_result_cache = 0;
614 SvIV_set (sv_result, req->result);
615 SvIOK_only (sv_result);
616 }
617 else
618 {
619 sv_result = newSViv (req->result);
620 SvREADONLY_on (sv_result);
621 }
622
368 switch (req->type) 623 switch (req->type)
369 { 624 {
625 case EIO_WD_OPEN:
626 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
627 break;
628
370 case REQ_READDIR: 629 case EIO_READDIR:
371 { 630 {
372 SV *rv = &PL_sv_undef; 631 SV *rv = &PL_sv_undef;
373 632
374 if (req->result >= 0) 633 if (req->result >= 0)
375 { 634 {
376 int i; 635 int i;
377 char *buf = req->data2ptr; 636 char *names = (char *)req->ptr2;
637 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
378 AV *av = newAV (); 638 AV *av = newAV ();
379 639
380 av_extend (av, req->result - 1); 640 av_extend (av, req->result - 1);
381 641
382 for (i = 0; i < req->result; ++i) 642 for (i = 0; i < req->result; ++i)
383 { 643 {
384 SV *sv = newSVpv (buf, 0); 644 if (req->int1 & EIO_READDIR_DENTS)
645 {
646 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
385 647
648 if (req->int1 & EIO_READDIR_CUSTOM2)
649 {
650 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
651 AV *avent = newAV ();
652
653 av_extend (avent, 2);
654
655 if (!sv_type [ent->type])
656 {
657 sv_type [ent->type] = newSViv (ent->type);
658 SvREADONLY_on (sv_type [ent->type]);
659 }
660
661 av_store (avent, 0, namesv);
662 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
663 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
664
665 av_store (av, i, newRV_noinc ((SV *)avent));
666 }
667 else
386 av_store (av, i, sv); 668 av_store (av, i, namesv);
669
670 ++ent;
671 }
672 else
673 {
674 SV *name = newSVpv (names, 0);
675 av_store (av, i, name);
387 buf += SvCUR (sv) + 1; 676 names += SvCUR (name) + 1;
677 }
388 } 678 }
389 679
390 rv = sv_2mortal (newRV_noinc ((SV *)av)); 680 rv = sv_2mortal (newRV_noinc ((SV *)av));
391 } 681 }
392 682
393 PUSHs (rv); 683 PUSHs (rv);
684
685 if (req->int1 & EIO_READDIR_CUSTOM1)
686 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
394 } 687 }
395 break; 688 break;
396 689
397 case REQ_OPEN: 690 case EIO_OPEN:
691 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
692 break;
693
694 case EIO_STATVFS:
695 case EIO_FSTATVFS:
398 { 696 {
399 /* convert fd to fh */ 697 SV *rv = &PL_sv_undef;
400 SV *fh; 698
699#ifndef _WIN32
700 if (req->result >= 0)
701 {
702 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
703 HV *hv = newHV ();
704 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
705 * chooses to make it a struct.
706 */
707 unsigned long fsid = 0;
708 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
401 709
402 PUSHs (sv_2mortal (newSViv (req->result))); 710 rv = sv_2mortal (newRV_noinc ((SV *)hv));
403 PUTBACK;
404 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
405 SPAGAIN;
406 711
407 fh = SvREFCNT_inc (POPs); 712 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
713 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
714 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
715 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
716 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
717 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
718 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
719 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
720 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
721 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
722 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
723 }
724#endif
408 725
409 PUSHMARK (SP); 726 PUSHs (rv);
410 XPUSHs (sv_2mortal (fh));
411 } 727 }
728
412 break; 729 break;
413 730
414 case REQ_GROUP: 731 case EIO_GROUP:
415 req->fd = 2; /* mark group as finished */ 732 req->int1 = 2; /* mark group as finished */
416 733
417 if (req->data) 734 if (req->sv1)
418 { 735 {
419 int i; 736 int i;
420 AV *av = (AV *)req->data; 737 AV *av = (AV *)req->sv1;
421 738
422 EXTEND (SP, AvFILL (av) + 1); 739 EXTEND (SP, AvFILL (av) + 1);
423 for (i = 0; i <= AvFILL (av); ++i) 740 for (i = 0; i <= AvFILL (av); ++i)
424 PUSHs (*av_fetch (av, i, 0)); 741 PUSHs (*av_fetch (av, i, 0));
425 } 742 }
426 break; 743 break;
427 744
428 case REQ_NOP: 745 case EIO_NOP:
429 case REQ_BUSY: 746 case EIO_BUSY:
430 break; 747 break;
431 748
749 case EIO_READLINK:
750 case EIO_REALPATH:
751 if (req->result > 0)
752 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
753 break;
754
755 case EIO_STAT:
756 case EIO_LSTAT:
757 case EIO_FSTAT:
758 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
759
760 if (!(PL_laststatval = req->result))
761 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
762 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
763
764 PUSHs (sv_result);
765 break;
766
767 case EIO_SEEK:
768 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
769 break;
770
771 case EIO_READ:
772 {
773 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
774 *SvEND (req->sv2) = 0;
775 SvPOK_only (req->sv2);
776 SvSETMAGIC (req->sv2);
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_SLURP:
782 {
783 if (req->result >= 0)
784 {
785 /* if length was originally not known, we steal the malloc'ed memory */
786 if (req->flags & EIO_FLAG_PTR2_FREE)
787 {
788 req->flags &= ~EIO_FLAG_PTR2_FREE;
789 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
790 }
791 else
792 {
793 SvCUR_set (req->sv2, req->result);
794 *SvEND (req->sv2) = 0;
795 SvPOK_only (req->sv2);
796 }
797
798 SvSETMAGIC (req->sv2);
799 }
800
801 PUSHs (sv_result);
802 }
803 break;
804
805 case EIO_CUSTOM:
806 if (req->feed == fiemap)
807 {
808#if HAVE_FIEMAP
809 if (!req->result)
810 {
811 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
812
813 if (fiemap->fm_extent_count)
814 {
815 AV *av = newAV ();
816 int i;
817
818 while (fiemap->fm_mapped_extents)
819 {
820 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
821 AV *ext_av = newAV ();
822
823 av_store (ext_av, 3, newSVuv (extent->fe_flags));
824 av_store (ext_av, 2, newSVval64 (extent->fe_length));
825 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
826 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
827
828 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
829 }
830
831 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
832 }
833 else
834 {
835 SvIV_set (sv_result, fiemap->fm_mapped_extents);
836 PUSHs (sv_result);
837 }
838 }
839#endif
840 }
841 else
842 PUSHs (sv_result);
843 break;
844
845#if 0
846 case EIO_CLOSE:
847 PerlIOUnix_refcnt_dec (req->int1);
848 break;
849#endif
850
851 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
852 if (req->result > 0)
853 SvIV_set (sv_result, 0);
854 /* FALLTHROUGH */
855
432 default: 856 default:
433 PUSHs (sv_2mortal (newSViv (req->result))); 857 PUSHs (sv_result);
434 break; 858 break;
435 } 859 }
436 860
437 errno = req->errorno; 861 errno = req->errorno;
438 862
439 PUTBACK; 863 PUTBACK;
440 call_sv (req->callback, G_VOID | G_EVAL); 864 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
441 SPAGAIN; 865 SPAGAIN;
866
867 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
868 SvREFCNT_dec (sv_result);
869 else
870 sv_result_cache = sv_result;
442 871
443 FREETMPS; 872 FREETMPS;
444 LEAVE; 873 LEAVE;
874
875 PUTBACK;
445 } 876 }
446 877
447 if (req->grp) 878 return !!SvTRUE (ERRSV);
448 {
449 aio_req grp = req->grp;
450
451 /* unlink request */
452 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
453 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
454
455 if (grp->grp_first == req)
456 grp->grp_first = req->grp_next;
457
458 aio_grp_dec (grp);
459 }
460
461 if (SvTRUE (ERRSV))
462 {
463 req_free (req);
464 croak (0);
465 }
466} 879}
467 880
468static void req_free (aio_req req) 881static void
882req_destroy (aio_req req)
469{ 883{
470 if (req->self) 884 if (req->self)
471 { 885 {
472 sv_unmagic (req->self, PERL_MAGIC_ext); 886 sv_unmagic (req->self, PERL_MAGIC_ext);
473 SvREFCNT_dec (req->self); 887 SvREFCNT_dec (req->self);
474 } 888 }
475 889
476 SvREFCNT_dec (req->data);
477 SvREFCNT_dec (req->fh); 890 SvREFCNT_dec (req->sv1);
478 SvREFCNT_dec (req->fh2); 891 SvREFCNT_dec (req->sv2);
892 SvREFCNT_dec (req->sv3);
893 SvREFCNT_dec (req->sv4);
479 SvREFCNT_dec (req->callback); 894 SvREFCNT_dec (req->callback);
480 Safefree (req->statdata);
481 895
482 if (req->type == REQ_READDIR)
483 free (req->data2ptr);
484
485 Safefree (req); 896 free (req);
486} 897}
487 898
899static void
488static void req_cancel_subs (aio_req grp) 900req_cancel_subs (aio_req grp)
489{ 901{
490 aio_req sub;
491
492 if (grp->type != REQ_GROUP) 902 if (grp->type != EIO_GROUP)
493 return; 903 return;
494 904
495 SvREFCNT_dec (grp->fh2); 905 SvREFCNT_dec (grp->sv2);
496 grp->fh2 = 0; 906 grp->sv2 = 0;
497 907
498 for (sub = grp->grp_first; sub; sub = sub->grp_next) 908 eio_grp_cancel (grp);
499 req_cancel (sub);
500} 909}
501 910
502static void req_cancel (aio_req req) 911ecb_cold
912static void
913create_respipe (void)
503{ 914{
504 req->flags |= FLAG_CANCELLED; 915 if (s_epipe_renew (&respipe))
505 916 croak ("IO::AIO: unable to initialize result pipe");
506 req_cancel_subs (req);
507} 917}
508 918
509static int poll_cb (int max) 919static void
920poll_wait (void)
510{ 921{
511 dSP; 922 while (eio_nreqs ())
512 int count = 0; 923 {
513 int do_croak = 0; 924 int size;
514 aio_req req;
515 925
926 X_LOCK (EIO_POOL->reslock);
927 size = EIO_POOL->res_queue.size;
928 X_UNLOCK (EIO_POOL->reslock);
929
930 if (size)
931 return;
932
933 etp_maybe_start_thread (EIO_POOL);
934
935 s_epipe_wait (&respipe);
936 }
937}
938
939static int
940poll_cb (void)
941{
516 for (;;) 942 for (;;)
517 { 943 {
518 while (max <= 0 || count < max) 944 int res = eio_poll ();
945
946 if (res > 0)
947 croak (0);
948
949 if (!max_outstanding || max_outstanding > eio_nreqs ())
950 return res;
951
952 poll_wait ();
953 }
954}
955
956ecb_cold
957static void
958reinit (void)
959{
960 create_respipe ();
961
962 if (eio_init (want_poll, done_poll) < 0)
963 croak ("IO::AIO: unable to initialise eio library");
964}
965
966/*****************************************************************************/
967
968static SV *
969get_cb (SV *cb_sv)
970{
971 SvGETMAGIC (cb_sv);
972 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
973}
974
975ecb_noinline
976static aio_req ecb_noinline
977dreq (SV *callback)
978{
979 SV *cb_cv;
980 aio_req req;
981 int req_pri = next_pri;
982 next_pri = EIO_PRI_DEFAULT;
983
984 cb_cv = get_cb (callback);
985
986 req = calloc (sizeof (*req), 1);
987 if (!req)
988 croak ("out of memory during eio_req allocation");
989
990 req->callback = SvREFCNT_inc (cb_cv);
991 req->pri = req_pri;
992
993 return req;
994}
995
996#define dREQ \
997 aio_req req = dreq (callback); \
998
999#define REQ_SEND \
1000 PUTBACK; \
1001 req_submit (req); \
1002 SPAGAIN; \
1003 \
1004 if (GIMME_V != G_VOID) \
1005 XPUSHs (req_sv (req, aio_req_stash));
1006
1007/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1008ecb_inline
1009void
1010req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1011{
1012 if (expect_false (SvROK (path)))
1013 {
1014 SV *rv = SvRV (path);
1015 SV *wdob;
1016
1017 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
519 { 1018 {
520 LOCK (reslock); 1019 path = AvARRAY (rv)[1];
521 req = reqq_shift (&res_queue); 1020 wdob = AvARRAY (rv)[0];
522 1021
523 if (req) 1022 if (SvOK (wdob))
524 { 1023 {
525 --npending; 1024 *wd = SvAIO_WD (wdob);
526 1025 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
527 if (!res_queue.size)
528 {
529 /* read any signals sent by the worker threads */
530 char buf [32];
531 while (read (respipe [0], buf, 32) == 32)
532 ;
533 }
534 }
535
536 UNLOCK (reslock);
537
538 if (!req)
539 break;
540
541 --nreqs;
542
543 if (req->type == REQ_QUIT)
544 --started;
545 else if (req->type == REQ_GROUP && req->length)
546 {
547 req->fd = 1; /* mark request as delayed */
548 continue;
549 } 1026 }
550 else 1027 else
551 { 1028 *wd = EIO_INVALID_WD;
552 if (req->type == REQ_READ)
553 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
554
555 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
556 SvREADONLY_off (req->data);
557
558 if (req->statdata)
559 {
560 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
561 PL_laststatval = req->result;
562 PL_statcache = *(req->statdata);
563 }
564
565 req_invoke (req);
566
567 count++;
568 }
569
570 req_free (req);
571 } 1029 }
1030 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1031 {
1032 *wd = (aio_wd)(long)SvIVX (rv);
1033 *wdsv = SvREFCNT_inc_NN (rv);
1034 *ptr = ".";
1035 return; /* path set to "." */
1036 }
1037 else
1038 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1039 }
572 1040
573 if (nreqs <= max_outstanding) 1041 *pathsv = newSVsv (path);
1042 *ptr = SvPVbyte_nolen (*pathsv);
1043}
1044
1045ecb_noinline
1046static void
1047req_set_path1 (aio_req req, SV *path)
1048{
1049 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1050}
1051
1052ecb_noinline
1053static void
1054req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1055{
1056 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1057
1058 switch (SvTYPE (rv))
1059 {
1060 case SVt_PVIO:
1061 case SVt_PVLV:
1062 case SVt_PVGV:
1063 req->type = type_fh;
1064 req->sv1 = newSVsv (fh_or_path);
1065 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
574 break; 1066 break;
575 1067
576 poll_wait (); 1068 default:
577 1069 req->type = type_path;
578 max = 0; 1070 req_set_path1 (req, fh_or_path);
1071 break;
579 } 1072 }
580
581 return count;
582}
583
584static void *aio_proc(void *arg);
585
586static void start_thread (void)
587{
588 sigset_t fullsigset, oldsigset;
589 pthread_attr_t attr;
590
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 pthread_attr_init (&attr);
597 pthread_attr_setstacksize (&attr, STACKSIZE);
598 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
599
600 sigfillset (&fullsigset);
601
602 LOCK (wrklock);
603 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
604
605 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
606 {
607 wrk->prev = &wrk_first;
608 wrk->next = wrk_first.next;
609 wrk_first.next->prev = wrk;
610 wrk_first.next = wrk;
611 ++started;
612 }
613 else
614 free (wrk);
615
616 sigprocmask (SIG_SETMASK, &oldsigset, 0);
617 UNLOCK (wrklock);
618}
619
620static void req_send (aio_req req)
621{
622 while (started < wanted && nreqs >= started)
623 start_thread ();
624
625 ++nreqs;
626
627 LOCK (reqlock);
628 ++nready;
629 reqq_push (&req_queue, req);
630 pthread_cond_signal (&reqwait);
631 UNLOCK (reqlock);
632}
633
634static void end_thread (void)
635{
636 aio_req req;
637
638 Newz (0, req, 1, aio_cb);
639
640 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS;
642
643 req_send (req);
644}
645
646static void min_parallel (int nthreads)
647{
648 if (wanted < nthreads)
649 wanted = nthreads;
650}
651
652static void max_parallel (int nthreads)
653{
654 int cur = started;
655
656 if (wanted > nthreads)
657 wanted = nthreads;
658
659 while (cur > wanted)
660 {
661 end_thread ();
662 cur--;
663 }
664
665 while (started > wanted)
666 {
667 poll_wait ();
668 poll_cb (0);
669 }
670}
671
672static void create_pipe ()
673{
674 if (pipe (respipe))
675 croak ("unable to initialize result pipe");
676
677 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
678 croak ("cannot set result pipe to nonblocking mode");
679
680 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
681 croak ("cannot set result pipe to nonblocking mode");
682} 1073}
683 1074
684/*****************************************************************************/ 1075/*****************************************************************************/
685/* work around various missing functions */
686 1076
687#if !HAVE_PREADWRITE 1077static void
688# define pread aio_pread 1078ts_set (struct timespec *ts, NV value)
689# define pwrite aio_pwrite
690
691/*
692 * make our pread/pwrite safe against themselves, but not against
693 * normal read/write by using a mutex. slows down execution a lot,
694 * but that's your problem, not mine.
695 */
696static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
697
698static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
699{ 1079{
700 ssize_t res; 1080 ts->tv_sec = value;
701 off_t ooffset; 1081 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
702
703 LOCK (preadwritelock);
704 ooffset = lseek (fd, 0, SEEK_CUR);
705 lseek (fd, offset, SEEK_SET);
706 res = read (fd, buf, count);
707 lseek (fd, ooffset, SEEK_SET);
708 UNLOCK (preadwritelock);
709
710 return res;
711} 1082}
712 1083
713static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1084static NV
1085ts_get (const struct timespec *ts)
714{ 1086{
715 ssize_t res; 1087 return ts->tv_sec + ts->tv_nsec * 1e-9;
716 off_t ooffset;
717
718 LOCK (preadwritelock);
719 ooffset = lseek (fd, 0, SEEK_CUR);
720 lseek (fd, offset, SEEK_SET);
721 res = write (fd, buf, count);
722 lseek (fd, offset, SEEK_SET);
723 UNLOCK (preadwritelock);
724
725 return res;
726} 1088}
727#endif
728 1089
729#if !HAVE_FDATASYNC 1090/*****************************************************************************/
730# define fdatasync fsync
731#endif
732 1091
733#if !HAVE_READAHEAD 1092XS(boot_IO__AIO) ecb_cold;
734# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
735 1093
736static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1094MODULE = IO::AIO PACKAGE = IO::AIO
737{
738 dBUF;
739 1095
740 while (count > 0) 1096PROTOTYPES: ENABLE
741 {
742 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
743 1097
744 pread (fd, aio_buf, len, offset); 1098BOOT:
745 offset += len;
746 count -= len;
747 }
748
749 errno = 0;
750}
751
752#endif
753
754#if !HAVE_READDIR_R
755# define readdir_r aio_readdir_r
756
757static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
758
759static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
760{ 1099{
761 struct dirent *e; 1100 static const struct {
762 int errorno; 1101 const char *name;
1102 IV iv;
1103 } *civ, const_iv[] = {
1104# define const_niv(name, value) { # name, (IV) value },
1105# define const_iv(name) { # name, (IV) name },
1106# define const_eio(name) { # name, (IV) EIO_ ## name },
763 1107
764 LOCK (readdirlock); 1108 /* you have to re-run ./gendef0 after adding/removing any constants here */
1109 /* the first block can be undef if missing */
1110 const_iv (ENOSYS)
1111 const_iv (EXDEV)
1112 const_iv (EBADR)
765 1113
766 e = readdir (dirp); 1114 /* for lseek */
767 errorno = errno; 1115 const_iv (SEEK_DATA)
1116 const_iv (SEEK_HOLE)
768 1117
769 if (e) 1118 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
770 { 1119 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
771 *res = ent; 1120 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
772 strcpy (ent->d_name, e->d_name); 1121 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
773 } 1122 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
774 else 1123 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
775 *res = 0;
776 1124
777 UNLOCK (readdirlock); 1125 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1126 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1127 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1128 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1129 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
778 1130
779 errno = errorno; 1131 /* the second block will be 0 when missing */
780 return e ? 0 : -1; 1132 const_iv (O_ACCMODE)
781}
782#endif
783 1133
784/* sendfile always needs emulation */ 1134 const_iv (O_RDONLY)
785static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1135 const_iv (O_WRONLY)
786{ 1136 const_iv (O_RDWR)
787 ssize_t res; 1137 const_iv (O_CREAT)
1138 const_iv (O_TRUNC)
1139 const_iv (O_EXCL)
1140 const_iv (O_APPEND)
788 1141
789 if (!count) 1142 const_iv (O_ASYNC)
790 return 0; 1143 const_iv (O_DIRECT)
1144 const_iv (O_NOATIME)
791 1145
792#if HAVE_SENDFILE 1146 const_iv (O_CLOEXEC)
793# if __linux 1147 const_iv (O_NOCTTY)
794 res = sendfile (ofd, ifd, &offset, count); 1148 const_iv (O_NOFOLLOW)
1149 const_iv (O_NONBLOCK)
1150 const_iv (O_EXEC)
1151 const_iv (O_SEARCH)
1152 const_iv (O_DIRECTORY)
1153 const_iv (O_DSYNC)
1154 const_iv (O_RSYNC)
1155 const_iv (O_SYNC)
1156 const_iv (O_PATH)
1157 const_iv (O_TMPFILE)
1158 const_iv (O_TTY_INIT)
795 1159
796# elif __freebsd 1160 const_iv (S_IFIFO)
797 /* 1161 const_iv (S_IFCHR)
798 * Of course, the freebsd sendfile is a dire hack with no thoughts 1162 const_iv (S_IFBLK)
799 * wasted on making it similar to other I/O functions. 1163 const_iv (S_IFLNK)
800 */ 1164 const_iv (S_IFREG)
1165 const_iv (S_IFDIR)
1166 const_iv (S_IFWHT)
1167 const_iv (S_IFSOCK)
1168 const_iv (S_IFMT)
1169
1170 const_iv (ST_RDONLY)
1171 const_iv (ST_NOSUID)
1172 const_iv (ST_NODEV)
1173 const_iv (ST_NOEXEC)
1174 const_iv (ST_SYNCHRONOUS)
1175 const_iv (ST_MANDLOCK)
1176 const_iv (ST_WRITE)
1177 const_iv (ST_APPEND)
1178 const_iv (ST_IMMUTABLE)
1179 const_iv (ST_NOATIME)
1180 const_iv (ST_NODIRATIME)
1181 const_iv (ST_RELATIME)
1182
1183 const_iv (PROT_NONE)
1184 const_iv (PROT_EXEC)
1185 const_iv (PROT_READ)
1186 const_iv (PROT_WRITE)
1187
1188 const_iv (MAP_PRIVATE)
1189 const_iv (MAP_SHARED)
1190 const_iv (MAP_FIXED)
1191 const_iv (MAP_ANONYMOUS)
1192
1193 /* linuxish */
1194 const_iv (MAP_LOCKED)
1195 const_iv (MAP_NORESERVE)
1196 const_iv (MAP_POPULATE)
1197 const_iv (MAP_NONBLOCK)
1198 const_iv (MAP_GROWSDOWN)
1199 const_iv (MAP_32BIT)
1200 const_iv (MAP_HUGETLB)
1201 const_iv (MAP_STACK)
1202
1203 const_iv (MREMAP_MAYMOVE)
1204 const_iv (MREMAP_FIXED)
1205
1206 const_iv (MSG_CMSG_CLOEXEC)
1207 const_iv (SOCK_CLOEXEC)
1208
1209 const_iv (F_DUPFD_CLOEXEC)
1210
1211 const_iv (F_ADD_SEALS)
1212 const_iv (F_GET_SEALS)
1213 const_iv (F_SEAL_SEAL)
1214 const_iv (F_SEAL_SHRINK)
1215 const_iv (F_SEAL_GROW)
1216 const_iv (F_SEAL_WRITE)
1217
1218 const_iv (F_OFD_GETLK)
1219 const_iv (F_OFD_SETLK)
1220 const_iv (F_OFD_GETLKW)
1221
1222 const_iv (FIFREEZE)
1223 const_iv (FITHAW)
1224 const_iv (FITRIM)
1225 const_iv (FICLONE)
1226 const_iv (FICLONERANGE)
1227 const_iv (FIDEDUPERANGE)
1228
1229 const_iv (FS_IOC_GETFLAGS)
1230 const_iv (FS_IOC_SETFLAGS)
1231 const_iv (FS_IOC_GETVERSION)
1232 const_iv (FS_IOC_SETVERSION)
1233 const_iv (FS_IOC_FIEMAP)
1234 const_iv (FS_IOC_FSGETXATTR)
1235 const_iv (FS_IOC_FSSETXATTR)
1236 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1237 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1238 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1239
1240 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1241
1242 const_iv (FS_SECRM_FL)
1243 const_iv (FS_UNRM_FL)
1244 const_iv (FS_COMPR_FL)
1245 const_iv (FS_SYNC_FL)
1246 const_iv (FS_IMMUTABLE_FL)
1247 const_iv (FS_APPEND_FL)
1248 const_iv (FS_NODUMP_FL)
1249 const_iv (FS_NOATIME_FL)
1250 const_iv (FS_DIRTY_FL)
1251 const_iv (FS_COMPRBLK_FL)
1252 const_iv (FS_NOCOMP_FL)
1253 const_iv (FS_ENCRYPT_FL)
1254 const_iv (FS_BTREE_FL)
1255 const_iv (FS_INDEX_FL)
1256 const_iv (FS_JOURNAL_DATA_FL)
1257 const_iv (FS_NOTAIL_FL)
1258 const_iv (FS_DIRSYNC_FL)
1259 const_iv (FS_TOPDIR_FL)
1260 const_iv (FS_FL_USER_MODIFIABLE)
1261
1262 const_iv (FS_XFLAG_REALTIME)
1263 const_iv (FS_XFLAG_PREALLOC)
1264 const_iv (FS_XFLAG_IMMUTABLE)
1265 const_iv (FS_XFLAG_APPEND)
1266 const_iv (FS_XFLAG_SYNC)
1267 const_iv (FS_XFLAG_NOATIME)
1268 const_iv (FS_XFLAG_NODUMP)
1269 const_iv (FS_XFLAG_RTINHERIT)
1270 const_iv (FS_XFLAG_PROJINHERIT)
1271 const_iv (FS_XFLAG_NOSYMLINKS)
1272 const_iv (FS_XFLAG_EXTSIZE)
1273 const_iv (FS_XFLAG_EXTSZINHERIT)
1274 const_iv (FS_XFLAG_NODEFRAG)
1275 const_iv (FS_XFLAG_FILESTREAM)
1276 const_iv (FS_XFLAG_DAX)
1277 const_iv (FS_XFLAG_HASATTR)
1278
1279 const_iv (FIEMAP_FLAG_SYNC)
1280 const_iv (FIEMAP_FLAG_XATTR)
1281 const_iv (FIEMAP_FLAGS_COMPAT)
1282 const_iv (FIEMAP_EXTENT_LAST)
1283 const_iv (FIEMAP_EXTENT_UNKNOWN)
1284 const_iv (FIEMAP_EXTENT_DELALLOC)
1285 const_iv (FIEMAP_EXTENT_ENCODED)
1286 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1287 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1288 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1289 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1290 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1291 const_iv (FIEMAP_EXTENT_MERGED)
1292 const_iv (FIEMAP_EXTENT_SHARED)
1293
1294 const_iv (SPLICE_F_MOVE)
1295 const_iv (SPLICE_F_NONBLOCK)
1296 const_iv (SPLICE_F_MORE)
1297 const_iv (SPLICE_F_GIFT)
1298
1299 const_iv (EFD_CLOEXEC)
1300 const_iv (EFD_NONBLOCK)
1301 const_iv (EFD_SEMAPHORE)
1302
1303 const_iv (MFD_CLOEXEC)
1304 const_iv (MFD_ALLOW_SEALING)
1305 const_iv (MFD_HUGETLB)
1306
1307 const_iv (CLOCK_REALTIME)
1308 const_iv (CLOCK_MONOTONIC)
1309 const_iv (CLOCK_BOOTTIME)
1310 const_iv (CLOCK_REALTIME_ALARM)
1311 const_iv (CLOCK_BOOTTIME_ALARM)
1312
1313 const_iv (TFD_NONBLOCK)
1314 const_iv (TFD_CLOEXEC)
1315
1316 const_iv (TFD_TIMER_ABSTIME)
1317 const_iv (TFD_TIMER_CANCEL_ON_SET)
1318
1319 const_iv (STATX_TYPE)
1320 const_iv (STATX_MODE)
1321 const_iv (STATX_NLINK)
1322 const_iv (STATX_UID)
1323 const_iv (STATX_GID)
1324 const_iv (STATX_ATIME)
1325 const_iv (STATX_MTIME)
1326 const_iv (STATX_CTIME)
1327 const_iv (STATX_INO)
1328 const_iv (STATX_SIZE)
1329 const_iv (STATX_BLOCKS)
1330 const_iv (STATX_BASIC_STATS)
1331 const_iv (STATX_ALL)
1332 const_iv (STATX_BTIME)
1333 const_iv (STATX_ATTR_COMPRESSED)
1334 const_iv (STATX_ATTR_IMMUTABLE)
1335 const_iv (STATX_ATTR_APPEND)
1336 const_iv (STATX_ATTR_NODUMP)
1337 const_iv (STATX_ATTR_ENCRYPTED)
1338 const_iv (STATX_ATTR_AUTOMOUNT)
1339
1340 const_iv (AT_FDCWD)
1341 const_iv (AT_SYMLINK_NOFOLLOW)
1342 const_iv (AT_EACCESS)
1343 const_iv (AT_REMOVEDIR)
1344 const_iv (AT_SYMLINK_FOLLOW)
1345 const_iv (AT_NO_AUTOMOUNT)
1346 const_iv (AT_EMPTY_PATH)
1347 const_iv (AT_STATX_SYNC_TYPE)
1348 const_iv (AT_STATX_AS_STAT)
1349 const_iv (AT_STATX_FORCE_SYNC)
1350 const_iv (AT_STATX_DONT_SYNC)
1351 const_iv (AT_RECURSIVE)
1352
1353 const_iv (OPEN_TREE_CLONE)
1354
1355 const_iv (MOVE_MOUNT_F_SYMLINKS)
1356 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1357 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1358 const_iv (MOVE_MOUNT_T_SYMLINKS)
1359 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1360 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1361
1362 /* these are libeio constants, and are independent of gendef0 */
1363 const_eio (SEEK_SET)
1364 const_eio (SEEK_CUR)
1365 const_eio (SEEK_END)
1366
1367 const_eio (MCL_FUTURE)
1368 const_eio (MCL_CURRENT)
1369 const_eio (MCL_ONFAULT)
1370
1371 const_eio (MS_ASYNC)
1372 const_eio (MS_INVALIDATE)
1373 const_eio (MS_SYNC)
1374
1375 const_eio (MT_MODIFY)
1376
1377 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1378 const_eio (SYNC_FILE_RANGE_WRITE)
1379 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1380
1381 const_eio (FALLOC_FL_KEEP_SIZE)
1382 const_eio (FALLOC_FL_PUNCH_HOLE)
1383 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1384 const_eio (FALLOC_FL_ZERO_RANGE)
1385 const_eio (FALLOC_FL_INSERT_RANGE)
1386 const_eio (FALLOC_FL_UNSHARE_RANGE)
1387
1388 const_eio (RENAME_NOREPLACE)
1389 const_eio (RENAME_EXCHANGE)
1390 const_eio (RENAME_WHITEOUT)
1391
1392 const_eio (READDIR_DENTS)
1393 const_eio (READDIR_DIRS_FIRST)
1394 const_eio (READDIR_STAT_ORDER)
1395 const_eio (READDIR_FOUND_UNKNOWN)
1396
1397 const_eio (DT_UNKNOWN)
1398 const_eio (DT_FIFO)
1399 const_eio (DT_CHR)
1400 const_eio (DT_DIR)
1401 const_eio (DT_BLK)
1402 const_eio (DT_REG)
1403 const_eio (DT_LNK)
1404 const_eio (DT_SOCK)
1405 const_eio (DT_WHT)
1406 };
1407
1408 aio_stash = gv_stashpv ("IO::AIO" , 1);
1409 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1410 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1411 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1412
1413 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1414 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1415
1416 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1417
1418 /* allocate dummy pipe fd for aio_close */
801 { 1419 {
802 off_t sbytes; 1420 int pipefd [2];
803 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
804 1421
805 if (res < 0 && sbytes) 1422 if (
806 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1423#ifdef _WIN32
807 res = sbytes; 1424 _pipe (pipefd, 1, _O_BINARY) < 0
1425#else
1426 pipe (pipefd) < 0
1427 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1428#endif
1429 || close (pipefd [1]) < 0
1430 )
1431 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1432
1433 close_fd = pipefd [0];
808 } 1434 }
809 1435
810# elif __hpux 1436 reinit ();
811 res = sendfile (ofd, ifd, offset, count, 0, 0);
812
813# elif __solaris
814 {
815 struct sendfilevec vec;
816 size_t sbytes;
817
818 vec.sfv_fd = ifd;
819 vec.sfv_flag = 0;
820 vec.sfv_off = offset;
821 vec.sfv_len = count;
822
823 res = sendfilev (ofd, &vec, 1, &sbytes);
824
825 if (res < 0 && sbytes)
826 res = sbytes;
827 }
828
829# endif
830#else
831 res = -1;
832 errno = ENOSYS;
833#endif
834
835 if (res < 0
836 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
837#if __solaris
838 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
839#endif
840 )
841 )
842 {
843 /* emulate sendfile. this is a major pain in the ass */
844 dBUF;
845
846 res = 0;
847
848 while (count)
849 {
850 ssize_t cnt;
851
852 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
853
854 if (cnt <= 0)
855 {
856 if (cnt && !res) res = -1;
857 break;
858 }
859
860 cnt = write (ofd, aio_buf, cnt);
861
862 if (cnt <= 0)
863 {
864 if (cnt && !res) res = -1;
865 break;
866 }
867
868 offset += cnt;
869 res += cnt;
870 count -= cnt;
871 }
872 }
873
874 return res;
875} 1437}
876 1438
877/* read a full directory */
878static void scandir_ (aio_req req, worker *self)
879{
880 DIR *dirp;
881 union
882 {
883 struct dirent d;
884 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
885 } *u;
886 struct dirent *entp;
887 char *name, *names;
888 int memlen = 4096;
889 int memofs = 0;
890 int res = 0;
891 int errorno;
892
893 LOCK (wrklock);
894 self->dirp = dirp = opendir (req->dataptr);
895 self->dbuf = u = malloc (sizeof (*u));
896 req->data2ptr = names = malloc (memlen);
897 UNLOCK (wrklock);
898
899 if (dirp && u && names)
900 for (;;)
901 {
902 errno = 0;
903 readdir_r (dirp, &u->d, &entp);
904
905 if (!entp)
906 break;
907
908 name = entp->d_name;
909
910 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
911 {
912 int len = strlen (name) + 1;
913
914 res++;
915
916 while (memofs + len > memlen)
917 {
918 memlen *= 2;
919 LOCK (wrklock);
920 req->data2ptr = names = realloc (names, memlen);
921 UNLOCK (wrklock);
922
923 if (!names)
924 break;
925 }
926
927 memcpy (names + memofs, name, len);
928 memofs += len;
929 }
930 }
931
932 if (errno)
933 res = -1;
934
935 req->result = res;
936}
937
938/*****************************************************************************/
939
940static void *aio_proc (void *thr_arg)
941{
942 aio_req req;
943 int type;
944 worker *self = (worker *)thr_arg;
945
946 do
947 {
948 LOCK (reqlock);
949
950 for (;;)
951 {
952 self->req = req = reqq_shift (&req_queue);
953
954 if (req)
955 break;
956
957 pthread_cond_wait (&reqwait, &reqlock);
958 }
959
960 --nready;
961
962 UNLOCK (reqlock);
963
964 errno = 0; /* strictly unnecessary */
965 type = req->type; /* remember type for QUIT check */
966
967 if (!(req->flags & FLAG_CANCELLED))
968 switch (type)
969 {
970 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
971 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
972
973 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
974 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
975
976 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
977 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
978 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
979
980 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
981 case REQ_CLOSE: req->result = close (req->fd); break;
982 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
983 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
984 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
985 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
986 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
987
988 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
989 case REQ_FSYNC: req->result = fsync (req->fd); break;
990 case REQ_READDIR: scandir_ (req, self); break;
991
992 case REQ_BUSY:
993 {
994 struct timeval tv;
995
996 tv.tv_sec = req->fd;
997 tv.tv_usec = req->fd2;
998
999 req->result = select (0, 0, 0, 0, &tv);
1000 }
1001
1002 case REQ_GROUP:
1003 case REQ_NOP:
1004 case REQ_QUIT:
1005 break;
1006
1007 default:
1008 req->result = ENOSYS;
1009 break;
1010 }
1011
1012 req->errorno = errno;
1013
1014 LOCK (reslock);
1015
1016 ++npending;
1017
1018 if (!reqq_push (&res_queue, req))
1019 /* write a dummy byte to the pipe so fh becomes ready */
1020 write (respipe [1], &respipe, 1);
1021
1022 self->req = 0;
1023 worker_clear (self);
1024
1025 UNLOCK (reslock);
1026 }
1027 while (type != REQ_QUIT);
1028
1029 LOCK (wrklock);
1030 worker_free (self);
1031 UNLOCK (wrklock);
1032
1033 return 0;
1034}
1035
1036/*****************************************************************************/
1037
1038static void atfork_prepare (void)
1039{
1040 LOCK (wrklock);
1041 LOCK (reqlock);
1042 LOCK (reslock);
1043#if !HAVE_PREADWRITE
1044 LOCK (preadwritelock);
1045#endif
1046#if !HAVE_READDIR_R
1047 LOCK (readdirlock);
1048#endif
1049}
1050
1051static void atfork_parent (void)
1052{
1053#if !HAVE_READDIR_R
1054 UNLOCK (readdirlock);
1055#endif
1056#if !HAVE_PREADWRITE
1057 UNLOCK (preadwritelock);
1058#endif
1059 UNLOCK (reslock);
1060 UNLOCK (reqlock);
1061 UNLOCK (wrklock);
1062}
1063
1064static void atfork_child (void)
1065{
1066 aio_req prv;
1067
1068 while (prv = reqq_shift (&req_queue))
1069 req_free (prv);
1070
1071 while (prv = reqq_shift (&res_queue))
1072 req_free (prv);
1073
1074 while (wrk_first.next != &wrk_first)
1075 {
1076 worker *wrk = wrk_first.next;
1077
1078 if (wrk->req)
1079 req_free (wrk->req);
1080
1081 worker_clear (wrk);
1082 worker_free (wrk);
1083 }
1084
1085 started = 0;
1086 nreqs = 0;
1087
1088 close (respipe [0]);
1089 close (respipe [1]);
1090 create_pipe ();
1091
1092 atfork_parent ();
1093}
1094
1095#define dREQ \
1096 aio_req req; \
1097 int req_pri = next_pri; \
1098 next_pri = DEFAULT_PRI + PRI_BIAS; \
1099 \
1100 if (SvOK (callback) && !SvROK (callback)) \
1101 croak ("callback must be undef or of reference type"); \
1102 \
1103 Newz (0, req, 1, aio_cb); \
1104 if (!req) \
1105 croak ("out of memory during aio_req allocation"); \
1106 \
1107 req->callback = newSVsv (callback); \
1108 req->pri = req_pri
1109
1110#define REQ_SEND \
1111 req_send (req); \
1112 \
1113 if (GIMME_V != G_VOID) \
1114 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1115
1116MODULE = IO::AIO PACKAGE = IO::AIO
1117
1118PROTOTYPES: ENABLE
1119
1120BOOT:
1121{
1122 HV *stash = gv_stashpv ("IO::AIO", 1);
1123 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1124 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1125 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1126
1127 create_pipe ();
1128 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1129}
1130
1131void 1439void
1132min_parallel (int nthreads) 1440reinit ()
1133 PROTOTYPE: $ 1441 PROTOTYPE:
1134 1442
1135void 1443void
1136max_parallel (int nthreads) 1444max_poll_reqs (unsigned int nreqs)
1137 PROTOTYPE: $
1138
1139int
1140max_outstanding (int maxreqs)
1141 PROTOTYPE: $ 1445 PROTOTYPE: $
1142 CODE: 1446 CODE:
1143 RETVAL = max_outstanding; 1447 eio_set_max_poll_reqs (nreqs);
1448
1449void
1450max_poll_time (double nseconds)
1451 PROTOTYPE: $
1452 CODE:
1453 eio_set_max_poll_time (nseconds);
1454
1455void
1456min_parallel (unsigned int nthreads)
1457 PROTOTYPE: $
1458 CODE:
1459 eio_set_min_parallel (nthreads);
1460
1461void
1462max_parallel (unsigned int nthreads)
1463 PROTOTYPE: $
1464 CODE:
1465 eio_set_max_parallel (nthreads);
1466
1467void
1468max_idle (unsigned int nthreads)
1469 PROTOTYPE: $
1470 CODE:
1471 eio_set_max_idle (nthreads);
1472
1473void
1474idle_timeout (unsigned int seconds)
1475 PROTOTYPE: $
1476 CODE:
1477 eio_set_idle_timeout (seconds);
1478
1479void
1480max_outstanding (unsigned int maxreqs)
1481 PROTOTYPE: $
1482 CODE:
1144 max_outstanding = maxreqs; 1483 max_outstanding = maxreqs;
1145 OUTPUT:
1146 RETVAL
1147 1484
1148void 1485void
1149aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1486aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1150 SV * pathname
1151 int flags
1152 int mode
1153 SV * callback
1154 PROTOTYPE: $$$;$
1155 PPCODE: 1487 PPCODE:
1156{ 1488{
1157 dREQ; 1489 dREQ;
1158 1490
1159 req->type = REQ_OPEN; 1491 req->type = EIO_WD_OPEN;
1160 req->data = newSVsv (pathname); 1492 req_set_path1 (req, pathname);
1161 req->dataptr = SvPVbyte_nolen (req->data);
1162 req->fd = flags;
1163 req->mode = mode;
1164 1493
1165 REQ_SEND; 1494 REQ_SEND;
1166} 1495}
1167 1496
1168void 1497void
1498aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1499 PPCODE:
1500{
1501 dREQ;
1502
1503 req->type = EIO_OPEN;
1504 req_set_path1 (req, pathname);
1505 req->int1 = flags;
1506 req->int2 = mode;
1507
1508 REQ_SEND;
1509}
1510
1511void
1169aio_close (fh,callback=&PL_sv_undef) 1512aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1170 SV * fh
1171 SV * callback
1172 PROTOTYPE: $;$
1173 ALIAS: 1513 ALIAS:
1174 aio_close = REQ_CLOSE
1175 aio_fsync = REQ_FSYNC 1514 aio_fsync = EIO_FSYNC
1176 aio_fdatasync = REQ_FDATASYNC 1515 aio_fdatasync = EIO_FDATASYNC
1516 aio_syncfs = EIO_SYNCFS
1177 PPCODE: 1517 PPCODE:
1178{ 1518{
1519 int fd = s_fileno_croak (fh, 0);
1179 dREQ; 1520 dREQ;
1180 1521
1181 req->type = ix; 1522 req->type = ix;
1182 req->fh = newSVsv (fh); 1523 req->sv1 = newSVsv (fh);
1183 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1524 req->int1 = fd;
1184 1525
1185 REQ_SEND (req); 1526 REQ_SEND;
1186} 1527}
1187 1528
1188void 1529void
1530aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1531 PPCODE:
1532{
1533 int fd = s_fileno_croak (fh, 0);
1534 dREQ;
1535
1536 req->type = EIO_SYNC_FILE_RANGE;
1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539 req->offs = offset;
1540 req->size = nbytes;
1541 req->int2 = flags;
1542
1543 REQ_SEND;
1544}
1545
1546void
1547aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1548 PPCODE:
1549{
1550 int fd = s_fileno_croak (fh, 0);
1551 dREQ;
1552
1553 req->type = EIO_FALLOCATE;
1554 req->sv1 = newSVsv (fh);
1555 req->int1 = fd;
1556 req->int2 = mode;
1557 req->offs = offset;
1558 req->size = len;
1559
1560 REQ_SEND;
1561}
1562
1563void
1564aio_close (SV *fh, SV *callback = &PL_sv_undef)
1565 PPCODE:
1566{
1567 int fd = s_fileno_croak (fh, 0);
1568 dREQ;
1569#if 0
1570 /* partially duplicate logic in s_fileno */
1571 SvGETMAGIC (fh);
1572
1573 if (SvROK (fh))
1574 {
1575 fh = SvRV (fh);
1576 SvGETMAGIC (fh);
1577 }
1578
1579 if (SvTYPE (fh) == SVt_PVGV)
1580 {
1581 /* perl filehandle */
1582 PerlIOUnix_refcnt_inc (fd);
1583 do_close ((GV *)fh, 1);
1584
1585 req->type = EIO_CLOSE;
1586 req->int1 = fd;
1587 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1588 }
1589 else
1590#endif
1591 {
1592 /* fd number */
1593 req->type = EIO_DUP2;
1594 req->int1 = close_fd;
1595 req->sv2 = newSVsv (fh);
1596 req->int2 = fd;
1597 }
1598
1599 REQ_SEND;
1600}
1601
1602void
1603aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1604 PPCODE:
1605{
1606 int fd = s_fileno_croak (fh, 0);
1607 dREQ;
1608
1609 req->type = EIO_SEEK;
1610 req->sv1 = newSVsv (fh);
1611 req->int1 = fd;
1612 req->offs = SvVAL64 (offset);
1613 req->int2 = whence;
1614
1615 REQ_SEND;
1616}
1617
1618void
1189aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1619aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1190 SV * fh
1191 UV offset
1192 UV length
1193 SV * data
1194 UV dataoffset
1195 SV * callback
1196 ALIAS: 1620 ALIAS:
1197 aio_read = REQ_READ 1621 aio_read = EIO_READ
1198 aio_write = REQ_WRITE 1622 aio_write = EIO_WRITE
1199 PROTOTYPE: $$$$$;$
1200 PPCODE: 1623 PPCODE:
1201{ 1624{
1202 aio_req req;
1203 STRLEN svlen; 1625 STRLEN svlen;
1626 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1204 char *svptr = SvPVbyte (data, svlen); 1627 char *svptr = SvPVbyte (data, svlen);
1205 1628 UV len = SvUV (length);
1206 SvUPGRADE (data, SVt_PV);
1207 SvPOK_on (data);
1208 1629
1209 if (dataoffset < 0) 1630 if (dataoffset < 0)
1210 dataoffset += svlen; 1631 dataoffset += svlen;
1211 1632
1212 if (dataoffset < 0 || dataoffset > svlen) 1633 if (dataoffset < 0 || dataoffset > svlen)
1213 croak ("data offset outside of string"); 1634 croak ("dataoffset outside of data scalar");
1214 1635
1215 if (ix == REQ_WRITE) 1636 if (ix == EIO_WRITE)
1216 { 1637 {
1217 /* write: check length and adjust. */ 1638 /* write: check length and adjust. */
1218 if (length < 0 || length + dataoffset > svlen) 1639 if (!SvOK (length) || len + dataoffset > svlen)
1219 length = svlen - dataoffset; 1640 len = svlen - dataoffset;
1220 } 1641 }
1221 else 1642 else
1222 { 1643 {
1223 /* read: grow scalar as necessary */ 1644 /* read: check type and grow scalar as necessary */
1645 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1224 svptr = SvGROW (data, length + dataoffset); 1646 svptr = sv_grow (data, len + dataoffset + 1);
1647 else if (SvCUR (data) < len + dataoffset)
1648 croak ("length + dataoffset outside of scalar, and cannot grow");
1225 } 1649 }
1226
1227 if (length < 0)
1228 croak ("length must not be negative");
1229 1650
1230 { 1651 {
1231 dREQ; 1652 dREQ;
1232 1653
1233 req->type = ix; 1654 req->type = ix;
1234 req->fh = newSVsv (fh); 1655 req->sv1 = newSVsv (fh);
1235 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1656 req->int1 = fd;
1236 : IoOFP (sv_2io (fh))); 1657 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237 req->offset = offset; 1658 req->size = len;
1238 req->length = length;
1239 req->data = SvREFCNT_inc (data); 1659 req->sv2 = SvREFCNT_inc (data);
1240 req->dataptr = (char *)svptr + dataoffset; 1660 req->ptr2 = (char *)svptr + dataoffset;
1661 req->stroffset = dataoffset;
1241 1662
1242 if (!SvREADONLY (data)) 1663 if (!SvREADONLY (data))
1243 { 1664 {
1244 SvREADONLY_on (data); 1665 SvREADONLY_on (data);
1245 req->data2ptr = (void *)data; 1666 req->flags |= FLAG_SV2_RO_OFF;
1246 } 1667 }
1247 1668
1248 REQ_SEND; 1669 REQ_SEND;
1249 } 1670 }
1250} 1671}
1251 1672
1252void 1673void
1253aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1674aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1254 SV * out_fh 1675 ALIAS:
1255 SV * in_fh 1676 aio_ioctl = EIO_IOCTL
1256 UV in_offset 1677 aio_fcntl = EIO_FCNTL
1257 UV length
1258 SV * callback
1259 PROTOTYPE: $$$$;$
1260 PPCODE: 1678 PPCODE:
1261{ 1679{
1262 dREQ; 1680 int fd = s_fileno_croak (fh, 0);
1681 char *svptr;
1263 1682
1264 req->type = REQ_SENDFILE; 1683 if (SvPOK (arg) || !SvNIOK (arg))
1265 req->fh = newSVsv (out_fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1267 req->fh2 = newSVsv (in_fh);
1268 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1269 req->offset = in_offset;
1270 req->length = length;
1271
1272 REQ_SEND;
1273}
1274
1275void
1276aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1277 SV * fh
1278 UV offset
1279 IV length
1280 SV * callback
1281 PROTOTYPE: $$$;$
1282 PPCODE:
1283{
1284 dREQ;
1285
1286 req->type = REQ_READAHEAD;
1287 req->fh = newSVsv (fh);
1288 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1289 req->offset = offset;
1290 req->length = length;
1291
1292 REQ_SEND;
1293}
1294
1295void
1296aio_stat (fh_or_path,callback=&PL_sv_undef)
1297 SV * fh_or_path
1298 SV * callback
1299 ALIAS:
1300 aio_stat = REQ_STAT
1301 aio_lstat = REQ_LSTAT
1302 PPCODE:
1303{
1304 dREQ;
1305
1306 New (0, req->statdata, 1, Stat_t);
1307 if (!req->statdata)
1308 { 1684 {
1309 req_free (req); 1685 STRLEN svlen;
1310 croak ("out of memory during aio_req->statdata allocation"); 1686 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1311 } 1687#ifdef IOCPARM_LEN
1688 STRLEN need = IOCPARM_LEN (request);
1689#else
1690 STRLEN need = 256;
1691#endif
1312 1692
1313 if (SvPOK (fh_or_path)) 1693 if (svlen < need)
1314 { 1694 svptr = SvGROW (arg, need);
1315 req->type = ix;
1316 req->data = newSVsv (fh_or_path);
1317 req->dataptr = SvPVbyte_nolen (req->data);
1318 } 1695 }
1319 else 1696 else
1697 svptr = (char *)SvIV (arg);
1698
1320 { 1699 {
1700 dREQ;
1701
1321 req->type = REQ_FSTAT; 1702 req->type = ix;
1322 req->fh = newSVsv (fh_or_path); 1703 req->sv1 = newSVsv (fh);
1323 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1704 req->int1 = fd;
1705 req->int2 = (long)request;
1706 req->sv2 = SvREFCNT_inc (arg);
1707 req->ptr2 = svptr;
1708
1709 REQ_SEND;
1324 } 1710 }
1711}
1712
1713void
1714aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1715 ALIAS:
1716 aio_readlink = EIO_READLINK
1717 aio_realpath = EIO_REALPATH
1718 PPCODE:
1719{
1720 dREQ;
1721
1722 req->type = ix;
1723 req_set_path1 (req, pathname);
1325 1724
1326 REQ_SEND; 1725 REQ_SEND;
1327} 1726}
1328 1727
1329void 1728void
1330aio_unlink (pathname,callback=&PL_sv_undef) 1729aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1331 SV * pathname 1730 PPCODE:
1332 SV * callback 1731{
1732 int ifd = s_fileno_croak (in_fh , 0);
1733 int ofd = s_fileno_croak (out_fh, 1);
1734 dREQ;
1735
1736 req->type = EIO_SENDFILE;
1737 req->sv1 = newSVsv (out_fh);
1738 req->int1 = ofd;
1739 req->sv2 = newSVsv (in_fh);
1740 req->int2 = ifd;
1741 req->offs = in_offset;
1742 req->size = length;
1743
1744 REQ_SEND;
1745}
1746
1747void
1748aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1749 PPCODE:
1750{
1751 int fd = s_fileno_croak (fh, 0);
1752 dREQ;
1753
1754 req->type = EIO_READAHEAD;
1755 req->sv1 = newSVsv (fh);
1756 req->int1 = fd;
1757 req->offs = offset;
1758 req->size = length;
1759
1760 REQ_SEND;
1761}
1762
1763void
1764aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1333 ALIAS: 1765 ALIAS:
1766 aio_stat = EIO_STAT
1767 aio_lstat = EIO_LSTAT
1768 aio_statvfs = EIO_STATVFS
1769 PPCODE:
1770{
1771 dREQ;
1772
1773 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1774
1775 REQ_SEND;
1776}
1777
1778void
1779st_xtime ()
1780 ALIAS:
1781 st_atime = 0x01
1782 st_mtime = 0x02
1783 st_ctime = 0x04
1784 st_btime = 0x08
1785 st_xtime = 0x0f
1786 PPCODE:
1787 EXTEND (SP, 4);
1788 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1789 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1790 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1791 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1792
1793void
1794st_xtimensec ()
1795 ALIAS:
1796 st_atimensec = 0x01
1797 st_mtimensec = 0x02
1798 st_ctimensec = 0x04
1799 st_btimensec = 0x08
1800 st_xtimensec = 0x0f
1801 st_btimesec = 0x10
1802 st_gen = 0x20
1803 PPCODE:
1804 EXTEND (SP, 4);
1805 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1806 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1807 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1808 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1809 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1810 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1811
1812UV
1813major (UV dev)
1814 ALIAS:
1815 minor = 1
1816 CODE:
1817 RETVAL = ix ? minor (dev) : major (dev);
1818 OUTPUT:
1819 RETVAL
1820
1821UV
1822makedev (UV maj, UV min)
1823 CODE:
1824 RETVAL = makedev (maj, min);
1825 OUTPUT:
1826 RETVAL
1827
1828void
1829aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1830 PPCODE:
1831{
1832 dREQ;
1833
1834 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1835 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1836 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1837
1838 REQ_SEND;
1839}
1840
1841void
1842aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1843 PPCODE:
1844{
1845 dREQ;
1846
1847 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1848 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1849
1850 REQ_SEND;
1851}
1852
1853void
1854aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1855 PPCODE:
1856{
1857 dREQ;
1858
1859 req->int2 = mode;
1860 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1861
1862 REQ_SEND;
1863}
1864
1865void
1866aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1867 PPCODE:
1868{
1869 dREQ;
1870
1871 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1872 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1873 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1874
1875 REQ_SEND;
1876}
1877
1878void
1879aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1880 PPCODE:
1881{
1882 dREQ;
1883
1884 req->type = EIO_READDIR;
1885 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1886
1887 if (flags & EIO_READDIR_DENTS)
1888 req->int1 |= EIO_READDIR_CUSTOM2;
1889
1890 req_set_path1 (req, pathname);
1891
1892 REQ_SEND;
1893}
1894
1895void
1896aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = EIO_MKDIR;
1902 req->int2 = mode;
1903 req_set_path1 (req, pathname);
1904
1905 REQ_SEND;
1906}
1907
1908void
1909aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1910 ALIAS:
1334 aio_unlink = REQ_UNLINK 1911 aio_unlink = EIO_UNLINK
1335 aio_rmdir = REQ_RMDIR 1912 aio_rmdir = EIO_RMDIR
1336 aio_readdir = REQ_READDIR 1913 aio_readdir = EIO_READDIR
1337 PPCODE: 1914 PPCODE:
1338{ 1915{
1339 dREQ; 1916 dREQ;
1340 1917
1341 req->type = ix; 1918 req->type = ix;
1342 req->data = newSVsv (pathname); 1919 req_set_path1 (req, pathname);
1343 req->dataptr = SvPVbyte_nolen (req->data); 1920
1344
1345 REQ_SEND; 1921 REQ_SEND;
1346} 1922}
1347 1923
1348void 1924void
1349aio_link (oldpath,newpath,callback=&PL_sv_undef) 1925aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1350 SV * oldpath
1351 SV * newpath
1352 SV * callback
1353 ALIAS: 1926 ALIAS:
1354 aio_link = REQ_LINK 1927 aio_link = EIO_LINK
1355 aio_symlink = REQ_SYMLINK 1928 aio_symlink = EIO_SYMLINK
1356 aio_rename = REQ_RENAME 1929 aio_rename = EIO_RENAME
1357 PPCODE: 1930 PPCODE:
1358{ 1931{
1932 eio_wd wd2 = 0;
1359 dREQ; 1933 dREQ;
1360 1934
1361 req->type = ix; 1935 req->type = ix;
1362 req->fh = newSVsv (oldpath); 1936 req_set_path1 (req, oldpath);
1363 req->data2ptr = SvPVbyte_nolen (req->fh); 1937 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1364 req->data = newSVsv (newpath); 1938 req->int3 = (long)wd2;
1365 req->dataptr = SvPVbyte_nolen (req->data);
1366 1939
1367 REQ_SEND; 1940 REQ_SEND;
1368} 1941}
1369 1942
1370void 1943void
1371aio_busy (delay,callback=&PL_sv_undef) 1944aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1372 double delay
1373 SV * callback
1374 PPCODE: 1945 PPCODE:
1375{ 1946{
1947 eio_wd wd2 = 0;
1376 dREQ; 1948 dREQ;
1377 1949
1378 req->type = REQ_BUSY; 1950 req->type = EIO_RENAME;
1379 req->fd = delay < 0. ? 0 : delay; 1951 req_set_path1 (req, oldpath);
1380 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1952 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1381 1953 req->int2 = flags;
1954 req->int3 = (long)wd2;
1955
1382 REQ_SEND; 1956 REQ_SEND;
1383} 1957}
1384 1958
1385void 1959void
1386aio_group (callback=&PL_sv_undef) 1960aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1387 SV * callback 1961 PPCODE:
1388 PROTOTYPE: ;$ 1962{
1963 dREQ;
1964
1965 req->type = EIO_MKNOD;
1966 req->int2 = (mode_t)mode;
1967 req->offs = dev;
1968 req_set_path1 (req, pathname);
1969
1970 REQ_SEND;
1971}
1972
1973void
1974aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1975 ALIAS:
1976 aio_mtouch = EIO_MTOUCH
1977 aio_msync = EIO_MSYNC
1389 PPCODE: 1978 PPCODE:
1390{ 1979{
1980 STRLEN svlen;
1981 char *svptr = SvPVbyte (data, svlen);
1982 UV len = SvUV (length);
1983
1984 if (flags < 0)
1985 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1986
1987 if (offset < 0)
1988 offset += svlen;
1989
1990 if (offset < 0 || offset > svlen)
1991 croak ("offset outside of scalar");
1992
1993 if (!SvOK (length) || len + offset > svlen)
1994 len = svlen - offset;
1995
1996 {
1997 dREQ;
1998
1999 req->type = ix;
2000 req->sv2 = SvREFCNT_inc (data);
2001 req->ptr2 = (char *)svptr + offset;
2002 req->size = len;
2003 req->int1 = flags;
2004
2005 REQ_SEND;
2006 }
2007}
2008
2009void
2010aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2011 PPCODE:
2012{
2013 STRLEN svlen;
2014 char *svptr = SvPVbyte (data, svlen);
2015 UV len = SvUV (length);
2016
2017 if (offset < 0)
2018 offset += svlen;
2019
2020 if (offset < 0 || offset > svlen)
2021 croak ("offset outside of scalar");
2022
2023 if (!SvOK (length) || len + offset > svlen)
2024 len = svlen - offset;
2025
2026 {
2027 dREQ;
2028
2029 req->type = EIO_MLOCK;
2030 req->sv2 = SvREFCNT_inc (data);
2031 req->ptr2 = (char *)svptr + offset;
2032 req->size = len;
2033
2034 REQ_SEND;
2035 }
2036}
2037
2038void
2039aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2040 PPCODE:
2041{
2042 dREQ;
2043
2044 req->type = EIO_MLOCKALL;
2045 req->int1 = flags;
2046
2047 REQ_SEND;
2048}
2049
2050void
2051aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2052 PPCODE:
2053{
2054 int fd = s_fileno_croak (fh, 0);
1391 dREQ; 2055 dREQ;
1392 2056
1393 req->type = REQ_GROUP; 2057 req->type = EIO_CUSTOM;
1394 req_send (req); 2058 req->sv1 = newSVsv (fh);
2059 req->int1 = fd;
1395 2060
1396 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2061 req->feed = fiemap;
1397} 2062#if HAVE_FIEMAP
2063 /* keep our fingers crossed that the next two types are 64 bit */
2064 req->offs = start;
2065 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2066 req->int2 = flags;
2067 req->int3 = SvOK (count) ? SvIV (count) : -1;
2068#endif
1398 2069
2070 REQ_SEND;
2071}
2072
1399void 2073void
1400aio_nop (callback=&PL_sv_undef) 2074aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1401 SV * callback 2075 PPCODE:
2076{
2077 char *svptr = 0;
2078
2079 sv_clear_foreign (data);
2080
2081 if (length) /* known length, directly read into scalar */
2082 {
2083 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2084 svptr = sv_grow (data, length + 1);
2085 else if (SvCUR (data) < length)
2086 croak ("length outside of scalar, and cannot grow");
2087 else
2088 svptr = SvPVbyte_nolen (data);
2089 }
2090
2091 {
2092 dREQ;
2093
2094 req->type = EIO_SLURP;
2095 req_set_path1 (req, pathname);
2096 req->offs = offset;
2097 req->size = length;
2098 req->sv2 = SvREFCNT_inc (data);
2099 req->ptr2 = svptr;
2100
2101 if (!SvREADONLY (data))
2102 {
2103 SvREADONLY_on (data);
2104 req->flags |= FLAG_SV2_RO_OFF;
2105 }
2106
2107 REQ_SEND;
2108 }
2109}
2110
2111void
2112aio_busy (double delay, SV *callback = &PL_sv_undef)
1402 PPCODE: 2113 PPCODE:
1403{ 2114{
1404 dREQ; 2115 dREQ;
1405 2116
1406 req->type = REQ_NOP; 2117 req->type = EIO_BUSY;
2118 req->nv1 = delay < 0. ? 0. : delay;
1407 2119
1408 REQ_SEND; 2120 REQ_SEND;
1409} 2121}
1410 2122
2123void
2124aio_group (SV *callback = &PL_sv_undef)
2125 PPCODE:
2126{
2127 dREQ;
2128
2129 req->type = EIO_GROUP;
2130
2131 PUTBACK;
2132 req_submit (req);
2133 SPAGAIN;
2134
2135 XPUSHs (req_sv (req, aio_grp_stash));
2136}
2137
2138void
2139aio_nop (SV *callback = &PL_sv_undef)
2140 ALIAS:
2141 aio_nop = EIO_NOP
2142 aio_sync = EIO_SYNC
2143 PPCODE:
2144{
2145 dREQ;
2146
2147 req->type = ix;
2148
2149 REQ_SEND;
2150}
2151
1411int 2152int
1412aioreq_pri (int pri = 0) 2153aioreq_pri (int pri = NO_INIT)
1413 PROTOTYPE: ;$
1414 CODE: 2154 CODE:
1415 RETVAL = next_pri - PRI_BIAS; 2155 RETVAL = next_pri;
1416 if (items > 0) 2156 if (items > 0)
1417 { 2157 {
1418 if (pri < PRI_MIN) pri = PRI_MIN; 2158 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1419 if (pri > PRI_MAX) pri = PRI_MAX; 2159 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1420 next_pri = pri + PRI_BIAS; 2160 next_pri = pri;
1421 } 2161 }
1422 OUTPUT: 2162 OUTPUT:
1423 RETVAL 2163 RETVAL
1424 2164
1425void 2165void
1426aioreq_nice (int nice = 0) 2166aioreq_nice (int nice = 0)
1427 CODE: 2167 CODE:
1428 nice = next_pri - nice; 2168 nice = next_pri - nice;
1429 if (nice < PRI_MIN) nice = PRI_MIN; 2169 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1430 if (nice > PRI_MAX) nice = PRI_MAX; 2170 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1431 next_pri = nice + PRI_BIAS; 2171 next_pri = nice;
1432 2172
1433void 2173void
1434flush () 2174flush ()
2175 CODE:
2176 while (eio_nreqs ())
2177 {
2178 poll_wait ();
2179 poll_cb ();
2180 }
2181
2182int
2183poll ()
2184 CODE:
2185 poll_wait ();
2186 RETVAL = poll_cb ();
2187 OUTPUT:
2188 RETVAL
2189
2190int
2191poll_fileno ()
2192 CODE:
2193 RETVAL = s_epipe_fd (&respipe);
2194 OUTPUT:
2195 RETVAL
2196
2197int
2198poll_cb (...)
1435 PROTOTYPE: 2199 PROTOTYPE:
1436 CODE: 2200 CODE:
1437 while (nreqs) 2201 RETVAL = poll_cb ();
2202 OUTPUT:
2203 RETVAL
2204
2205void
2206poll_wait ()
2207 CODE:
2208 poll_wait ();
2209
2210int
2211nreqs ()
2212 CODE:
2213 RETVAL = eio_nreqs ();
2214 OUTPUT:
2215 RETVAL
2216
2217int
2218nready ()
2219 CODE:
2220 RETVAL = eio_nready ();
2221 OUTPUT:
2222 RETVAL
2223
2224int
2225npending ()
2226 CODE:
2227 RETVAL = eio_npending ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232nthreads ()
2233 CODE:
2234 RETVAL = eio_nthreads ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2240 CODE:
2241 RETVAL = posix_fadvise (fh, offset, length, advice);
2242 OUTPUT:
2243 RETVAL
2244
2245IV
2246sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2247 CODE:
2248 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2249 OUTPUT:
2250 RETVAL
2251
2252void
2253mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2254 PPCODE:
2255 sv_clear_foreign (scalar);
2256{
2257 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2258 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2259 if (addr == (void *)-1)
2260 XSRETURN_NO;
2261
2262 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2263
2264 if (!(prot & PROT_WRITE))
2265 SvREADONLY_on (scalar);
2266
2267 XSRETURN_YES;
2268}
2269
2270void
2271munmap (SV *scalar)
2272 CODE:
2273 sv_clear_foreign (scalar);
2274
2275SV *
2276mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2277 CODE:
2278{
2279 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2280 void *new;
2281
2282 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2283 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2284
2285 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2286
2287 RETVAL = &PL_sv_no;
2288
2289 if (new != (void *)-1)
1438 { 2290 {
1439 poll_wait (); 2291 RETVAL = new == (void *)mg->mg_ptr
1440 poll_cb (0); 2292 ? newSVpvn ("0 but true", 10)
2293 : &PL_sv_yes;
2294
2295 mg->mg_ptr = (char *)new;
2296 mg->mg_obj = (SV *)new_length;
2297
2298 SvPVX (scalar) = mg->mg_ptr;
2299 SvCUR_set (scalar, new_length);
1441 } 2300 }
2301}
2302 OUTPUT:
2303 RETVAL
1442 2304
1443void 2305int
1444poll() 2306madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2307 ALIAS:
2308 mprotect = 1
2309 CODE:
2310{
2311 STRLEN svlen;
2312 void *addr = SvPVbyte (scalar, svlen);
2313 STRLEN len = SvUV (length);
2314
2315 if (offset < 0)
2316 offset += svlen;
2317
2318 if (offset < 0 || offset > svlen)
2319 croak ("offset outside of scalar");
2320
2321 if (!SvOK (length) || len + offset > svlen)
2322 len = svlen - offset;
2323
2324 addr = (void *)(((intptr_t)addr) + offset);
2325 eio_page_align (&addr, &len);
2326
2327 switch (ix)
2328 {
2329 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2330 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2331 }
2332}
2333 OUTPUT:
2334 RETVAL
2335
2336int
2337munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2338 CODE:
2339{
2340 STRLEN svlen;
2341 void *addr = SvPVbyte (scalar, svlen);
2342 size_t len = SvUV (length);
2343
2344 if (offset < 0)
2345 offset += svlen;
2346
2347 if (offset < 0 || offset > svlen)
2348 croak ("offset outside of scalar");
2349
2350 if (!SvOK (length) || len + offset > svlen)
2351 len = svlen - offset;
2352
2353 addr = (void *)(((intptr_t)addr) + offset);
2354 eio_page_align (&addr, &len);
2355#if _POSIX_MEMLOCK_RANGE
2356 RETVAL = munlock (addr, len);
2357#else
2358 RETVAL = EIO_ENOSYS ();
2359#endif
2360}
2361 OUTPUT:
2362 RETVAL
2363
2364int
2365mlockall (int flags)
2366 PROTOTYPE: $;
2367 CODE:
2368 RETVAL = eio_mlockall_sync (flags);
2369 OUTPUT:
2370 RETVAL
2371
2372int
2373munlockall ()
2374 CODE:
2375#if _POSIX_MEMLOCK
2376 munlockall ();
2377#else
2378 RETVAL = EIO_ENOSYS ();
2379#endif
2380 OUTPUT:
2381 RETVAL
2382
2383int
2384statx (SV8 *pathname, int flags, UV mask)
2385 CODE:
2386{
2387 /* undocumented, and might go away, and anyway, should use eio_statx */
2388 SV *wdsv = 0;
2389 SV *pathsv = 0;
2390 eio_wd wd = EIO_CWD;
2391 void *ptr;
2392 int res;
2393
2394 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2395 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2396
2397 SvREFCNT_dec (pathsv);
2398 SvREFCNT_dec (wdsv);
2399}
2400 OUTPUT:
2401 RETVAL
2402
2403U32
2404stx_mode ()
1445 PROTOTYPE: 2405 PROTOTYPE:
1446 CODE: 2406 CODE:
2407#if HAVE_STATX
2408 RETVAL = stx.stx_mode;
2409#else
2410 XSRETURN_UNDEF;
2411#endif
2412 OUTPUT:
2413 RETVAL
2414
2415#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2416#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2417#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2418#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2419#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2420#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2421#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2422#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2423#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2424#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2425#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2426#define STATX_OFFSET_size statx_offsetof (stx_size)
2427#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2428#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2429#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2430#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2431#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2432#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2433
2434U32
2435stx_mask ()
2436 PROTOTYPE:
2437 ALIAS:
2438 stx_mask = STATX_OFFSET_mask
2439 stx_blksize = STATX_OFFSET_blksize
2440 stx_nlink = STATX_OFFSET_nlink
2441 stx_uid = STATX_OFFSET_uid
2442 stx_gid = STATX_OFFSET_gid
2443 stx_rdev_major = STATX_OFFSET_rdev_major
2444 stx_rdev_minor = STATX_OFFSET_rdev_minor
2445 stx_dev_major = STATX_OFFSET_dev_major
2446 stx_dev_minor = STATX_OFFSET_dev_minor
2447 CODE:
2448#if HAVE_STATX
2449 RETVAL = *(__u32 *)((char *)&stx + ix);
2450#else
2451 XSRETURN_UNDEF;
2452#endif
2453 OUTPUT:
2454 RETVAL
2455
2456VAL64
2457stx_attributes ()
2458 PROTOTYPE:
2459 ALIAS:
2460 stx_attributes = STATX_OFFSET_attributes
2461 stx_ino = STATX_OFFSET_ino
2462 stx_size = STATX_OFFSET_size
2463 stx_blocks = STATX_OFFSET_blocks
2464 stx_attributes_mask = STATX_OFFSET_attributes_mask
2465 CODE:
2466#if HAVE_STATX
2467 RETVAL = *(__u64 *)((char *)&stx + ix);
2468#else
2469 XSRETURN_UNDEF;
2470#endif
2471 OUTPUT:
2472 RETVAL
2473
2474NV
2475stx_atime ()
2476 PROTOTYPE:
2477 ALIAS:
2478 stx_atime = STATX_OFFSET_atime
2479 stx_btime = STATX_OFFSET_btime
2480 stx_ctime = STATX_OFFSET_ctime
2481 stx_mtime = STATX_OFFSET_mtime
2482 CODE:
2483#if HAVE_STATX
2484 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2485 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2486#else
2487 XSRETURN_UNDEF;
2488#endif
2489 OUTPUT:
2490 RETVAL
2491
2492VAL64
2493stx_atimesec ()
2494 PROTOTYPE:
2495 ALIAS:
2496 stx_atimesec = STATX_OFFSET_atime
2497 stx_btimesec = STATX_OFFSET_btime
2498 stx_ctimesec = STATX_OFFSET_ctime
2499 stx_mtimesec = STATX_OFFSET_mtime
2500 CODE:
2501#if HAVE_STATX
2502 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2503 RETVAL = ts->tv_sec;
2504#else
2505 XSRETURN_UNDEF;
2506#endif
2507 OUTPUT:
2508 RETVAL
2509
2510U32
2511stx_atimensec ()
2512 PROTOTYPE:
2513 ALIAS:
2514 stx_atimensec = STATX_OFFSET_atime
2515 stx_btimensec = STATX_OFFSET_btime
2516 stx_ctimensec = STATX_OFFSET_ctime
2517 stx_mtimensec = STATX_OFFSET_mtime
2518 CODE:
2519#if HAVE_STATX
2520 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2521 RETVAL = ts->tv_nsec;
2522#else
2523 RETVAL = 0;
2524#endif
2525 OUTPUT:
2526 RETVAL
2527
2528void
2529accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2530 PPCODE:
2531{
2532 SV *retval;
2533#if HAVE_ACCEPT4
2534 socklen_t salen_ = salen ? salen + 1 : 0;
2535
1447 if (nreqs) 2536 if (salen)
1448 { 2537 {
1449 poll_wait (); 2538 sv_upgrade (sockaddr, SVt_PV);
1450 poll_cb (0); 2539 sv_grow (sockaddr, salen_);
1451 } 2540 }
2541
2542 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2543
2544 retval = newmortalFH (res, O_RDWR);
2545
2546 if (res >= 0 && salen > 0)
2547 {
2548 if (salen_ > salen + 1)
2549 salen_ = salen + 1;
2550
2551 SvPOK_only (sockaddr);
2552 SvCUR_set (sockaddr, salen_);
2553 }
2554#else
2555 errno = ENOSYS;
2556 retval = &PL_sv_undef;
2557#endif
2558 XPUSHs (retval);
2559}
2560
2561ssize_t
2562splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2563 CODE:
2564{
2565#if HAVE_LINUX_SPLICE
2566 loff_t off_in_, off_out_;
2567 RETVAL = splice (
2568 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2569 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2570 length, flags
2571 );
2572#else
2573 RETVAL = EIO_ENOSYS ();
2574#endif
2575}
2576 OUTPUT:
2577 RETVAL
2578
2579ssize_t
2580tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2581 CODE:
2582#if HAVE_LINUX_SPLICE
2583 RETVAL = tee (rfh, wfh, length, flags);
2584#else
2585 RETVAL = EIO_ENOSYS ();
2586#endif
2587 OUTPUT:
2588 RETVAL
1452 2589
1453int 2590int
1454poll_fileno() 2591pipesize (aio_rfd rfh, int new_size = -1)
2592 PROTOTYPE: $;$
2593 CODE:
2594#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2595 if (new_size >= 0)
2596 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2597 else
2598 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2599#else
2600 errno = ENOSYS;
2601 RETVAL = -1;
2602#endif
2603 OUTPUT:
2604 RETVAL
2605
2606void
2607pipe2 (int flags = 0)
1455 PROTOTYPE: 2608 PROTOTYPE: ;$
2609 PPCODE:
2610{
2611 int fd[2];
2612 int res;
2613
2614 if (flags)
2615#if HAVE_PIPE2
2616 res = pipe2 (fd, flags);
2617#else
2618 res = (errno = ENOSYS, -1);
2619#endif
2620 else
2621 res = pipe (fd);
2622
2623 if (!res)
2624 {
2625 EXTEND (SP, 2);
2626 PUSHs (newmortalFH (fd[0], O_RDONLY));
2627 PUSHs (newmortalFH (fd[1], O_WRONLY));
2628 }
2629}
2630
2631void
2632pidfd_open (int pid, unsigned int flags = 0)
2633 PPCODE:
2634{
2635 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2636 int fd = syscall (SYS_pidfd_open, pid, flags);
2637 XPUSHs (newmortalFH (fd, O_RDWR));
2638}
2639
2640int
2641pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2642 PPCODE:
2643{
2644 int res;
2645 siginfo_t si = { 0 };
2646
2647 if (SvOK (siginfo))
2648 {
2649 HV *hv;
2650 SV **svp;
2651
2652 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2653 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2654
2655 hv = (HV *)SvRV (siginfo);
2656
2657 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2658 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2659 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2660 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2661 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2662 }
2663
2664 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2665 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2666
2667 XPUSHs (sv_2mortal (newSViv (res)));
2668}
2669
2670void
2671pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2672 PPCODE:
2673{
2674 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2675 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2676 XPUSHs (newmortalFH (fd, O_RDWR));
2677}
2678
2679void
2680eventfd (unsigned int initval = 0, int flags = 0)
2681 PPCODE:
2682{
2683 int fd;
2684#if HAVE_EVENTFD
2685 fd = eventfd (initval, flags);
2686#else
2687 fd = (errno = ENOSYS, -1);
2688#endif
2689
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2694timerfd_create (int clockid, int flags = 0)
2695 PPCODE:
2696{
2697 int fd;
2698#if HAVE_TIMERFD
2699 fd = timerfd_create (clockid, flags);
2700#else
2701 fd = (errno = ENOSYS, -1);
2702#endif
2703
2704 XPUSHs (newmortalFH (fd, O_RDWR));
2705}
2706
2707void
2708timerfd_settime (SV *fh, int flags, NV interval, NV value)
2709 PPCODE:
2710{
2711 int fd = s_fileno_croak (fh, 0);
2712#if HAVE_TIMERFD
2713 int res;
2714 struct itimerspec its, ots;
2715
2716 ts_set (&its.it_interval, interval);
2717 ts_set (&its.it_value , value);
2718 res = timerfd_settime (fd, flags, &its, &ots);
2719
2720 if (!res)
2721 {
2722 EXTEND (SP, 2);
2723 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2724 PUSHs (newSVnv (ts_get (&ots.it_value)));
2725 }
2726#else
2727 errno = ENOSYS;
2728#endif
2729}
2730
2731void
2732timerfd_gettime (SV *fh)
2733 PPCODE:
2734{
2735 int fd = s_fileno_croak (fh, 0);
2736#if HAVE_TIMERFD
2737 int res;
2738 struct itimerspec ots;
2739 res = timerfd_gettime (fd, &ots);
2740
2741 if (!res)
2742 {
2743 EXTEND (SP, 2);
2744 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2745 PUSHs (newSVnv (ts_get (&ots.it_value)));
2746 }
2747#else
2748 errno = ENOSYS;
2749#endif
2750}
2751
2752void
2753memfd_create (SV8 *pathname, int flags = 0)
2754 PPCODE:
2755{
2756 int fd;
2757#if HAVE_MEMFD_CREATE
2758 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2759#else
2760 fd = (errno = ENOSYS, -1);
2761#endif
2762
2763 XPUSHs (newmortalFH (fd, O_RDWR));
2764}
2765
2766UV
2767get_fdlimit ()
1456 CODE: 2768 CODE:
1457 RETVAL = respipe [0]; 2769#if HAVE_RLIMITS
2770 struct rlimit rl;
2771 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2772 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2773#endif
2774 XSRETURN_UNDEF;
1458 OUTPUT: 2775 OUTPUT:
1459 RETVAL 2776 RETVAL
1460 2777
1461int 2778void
1462poll_cb(...) 2779min_fdlimit (UV limit = 0x7fffffffU)
1463 PROTOTYPE:
1464 CODE: 2780 CODE:
1465 RETVAL = poll_cb (0); 2781{
1466 OUTPUT: 2782#if HAVE_RLIMITS
1467 RETVAL 2783 struct rlimit rl;
2784 rlim_t orig_rlim_max;
2785 UV bit;
1468 2786
1469int 2787 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1470poll_some(int max = 0) 2788 goto fail;
1471 PROTOTYPE: $ 2789
2790 if (rl.rlim_cur == RLIM_INFINITY)
2791 XSRETURN_YES;
2792
2793 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2794
2795 if (rl.rlim_cur < limit)
2796 {
2797 rl.rlim_cur = limit;
2798
2799 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2800 rl.rlim_max = rl.rlim_cur;
2801 }
2802
2803 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2804 XSRETURN_YES;
2805
2806 if (errno == EPERM)
2807 {
2808 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2809 /* our limit overflows a system-wide limit */
2810 /* try an adaptive algorithm, but do not lower the hardlimit */
2811 rl.rlim_max = 0;
2812 for (bit = 0x40000000U; bit; bit >>= 1)
2813 {
2814 rl.rlim_max |= bit;
2815 rl.rlim_cur = rl.rlim_max;
2816
2817 /* never decrease the hard limit */
2818 if (rl.rlim_max < orig_rlim_max)
2819 break;
2820
2821 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2822 rl.rlim_max &= ~bit; /* too high, remove bit again */
2823 }
2824
2825 /* now, raise the soft limit to the max permitted */
2826 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2827 {
2828 rl.rlim_cur = rl.rlim_max;
2829 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2830 errno = EPERM;
2831 }
2832 }
2833#endif
2834 fail:
2835 XSRETURN_UNDEF;
2836}
2837
2838void _on_next_submit (SV *cb)
1472 CODE: 2839 CODE:
1473 RETVAL = poll_cb (max); 2840 SvREFCNT_dec (on_next_submit);
1474 OUTPUT: 2841 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1475 RETVAL
1476 2842
2843PROTOTYPES: DISABLE
2844
2845MODULE = IO::AIO PACKAGE = IO::AIO::WD
2846
2847BOOT:
2848{
2849 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2850 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2851}
2852
1477void 2853void
1478poll_wait() 2854DESTROY (SV *self)
1479 PROTOTYPE:
1480 CODE: 2855 CODE:
1481 if (nreqs) 2856{
1482 poll_wait (); 2857 aio_wd wd = SvAIO_WD (self);
1483 2858#if HAVE_AT
1484int 2859 {
1485nreqs() 2860 SV *callback = &PL_sv_undef;
1486 PROTOTYPE: 2861 dREQ; /* clobbers next_pri :/ */
1487 CODE: 2862 next_pri = req->pri; /* restore next_pri */
1488 RETVAL = nreqs; 2863 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1489 OUTPUT: 2864 req->type = EIO_WD_CLOSE;
1490 RETVAL 2865 req->wd = wd;
1491 2866 REQ_SEND;
1492int 2867 }
1493nready() 2868#else
1494 PROTOTYPE: 2869 eio_wd_close_sync (wd);
1495 CODE: 2870#endif
1496 if (WORDREAD_UNSAFE) LOCK (reqlock); 2871}
1497 RETVAL = nready;
1498 if (WORDREAD_UNSAFE) UNLOCK (reqlock);
1499 OUTPUT:
1500 RETVAL
1501
1502int
1503npending()
1504 PROTOTYPE:
1505 CODE:
1506 if (WORDREAD_UNSAFE) LOCK (reslock);
1507 RETVAL = npending;
1508 if (WORDREAD_UNSAFE) UNLOCK (reslock);
1509 OUTPUT:
1510 RETVAL
1511
1512PROTOTYPES: DISABLE
1513 2872
1514MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2873MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1515 2874
1516void 2875void
1517cancel (aio_req_ornot req) 2876cancel (aio_req_ornot req)
1518 CODE: 2877 CODE:
1519 req_cancel (req); 2878 eio_cancel (req);
1520 2879
1521void 2880void
1522cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2881cb (aio_req_ornot req, SV *callback = NO_INIT)
1523 CODE: 2882 PPCODE:
2883{
2884 if (GIMME_V != G_VOID)
2885 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2886
2887 if (items > 1)
2888 {
2889 SV *cb_cv = get_cb (callback);
2890
1524 SvREFCNT_dec (req->callback); 2891 SvREFCNT_dec (req->callback);
1525 req->callback = newSVsv (callback); 2892 req->callback = SvREFCNT_inc (cb_cv);
2893 }
2894}
1526 2895
1527MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2896MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1528 2897
1529void 2898void
1530add (aio_req grp, ...) 2899add (aio_req grp, ...)
1531 PPCODE: 2900 PPCODE:
1532{ 2901{
1533 int i; 2902 int i;
1534 aio_req req;
1535 2903
1536 if (grp->fd == 2) 2904 if (grp->int1 == 2)
1537 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2905 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1538 2906
1539 for (i = 1; i < items; ++i ) 2907 for (i = 1; i < items; ++i )
1540 { 2908 {
2909 aio_req req;
2910
1541 if (GIMME_V != G_VOID) 2911 if (GIMME_V != G_VOID)
1542 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2912 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1543 2913
1544 req = SvAIO_REQ (ST (i)); 2914 req = SvAIO_REQ (ST (i));
1545 2915
1546 if (req) 2916 if (req)
1547 { 2917 eio_grp_add (grp, req);
1548 ++grp->length;
1549 req->grp = grp;
1550
1551 req->grp_prev = 0;
1552 req->grp_next = grp->grp_first;
1553
1554 if (grp->grp_first)
1555 grp->grp_first->grp_prev = req;
1556
1557 grp->grp_first = req;
1558 }
1559 } 2918 }
1560} 2919}
1561 2920
1562void 2921void
1563cancel_subs (aio_req_ornot req) 2922cancel_subs (aio_req_ornot req)
… …
1572 AV *av; 2931 AV *av;
1573 2932
1574 grp->errorno = errno; 2933 grp->errorno = errno;
1575 2934
1576 av = newAV (); 2935 av = newAV ();
2936 av_extend (av, items - 1);
1577 2937
1578 for (i = 1; i < items; ++i ) 2938 for (i = 1; i < items; ++i )
1579 av_push (av, newSVsv (ST (i))); 2939 av_push (av, newSVsv (ST (i)));
1580 2940
1581 SvREFCNT_dec (grp->data); 2941 SvREFCNT_dec (grp->sv1);
1582 grp->data = (SV *)av; 2942 grp->sv1 = (SV *)av;
1583} 2943}
1584 2944
1585void 2945void
1586errno (aio_req grp, int errorno = errno) 2946errno (aio_req grp, int errorno = errno)
1587 CODE: 2947 CODE:
1588 grp->errorno = errorno; 2948 grp->errorno = errorno;
1589 2949
1590void 2950void
1591limit (aio_req grp, int limit) 2951limit (aio_req grp, int limit)
1592 CODE: 2952 CODE:
1593 grp->fd2 = limit; 2953 eio_grp_limit (grp, limit);
1594 aio_grp_feed (grp);
1595 2954
1596void 2955void
1597feed (aio_req grp, SV *callback=&PL_sv_undef) 2956feed (aio_req grp, SV *callback = &PL_sv_undef)
1598 CODE: 2957 CODE:
1599{ 2958{
1600 SvREFCNT_dec (grp->fh2); 2959 SvREFCNT_dec (grp->sv2);
1601 grp->fh2 = newSVsv (callback); 2960 grp->sv2 = newSVsv (callback);
2961 grp->feed = aio_grp_feed;
1602 2962
1603 if (grp->fd2 <= 0) 2963 if (grp->int2 <= 0)
1604 grp->fd2 = 2; 2964 grp->int2 = 2;
1605 2965
1606 aio_grp_feed (grp); 2966 eio_grp_limit (grp, grp->int2);
1607} 2967}
1608 2968

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