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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 1.294 by root, Sat Apr 9 19:34:05 2022 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 <sys/wait.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
37# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
38# include <sys/uio.h> 124# include <sys/uio.h>
39# elif __hpux 125#endif
40# include <sys/socket.h> 126
41# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
42# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
43# else 208# else
44# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 210# endif
46#endif 211#endif
47 212
48/* used for struct dirent, AIX doesn't provide it */ 213#ifndef makedev
49#ifndef NAME_MAX 214# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif 215#endif
52 216#ifndef major
53#ifndef PTHREAD_STACK_MIN 217# define major(dev) ((dev) >> 8)
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
57 222
58#if __ia64 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
59# define STACKSIZE 65536 224#ifdef __sun
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 225# undef PAGESIZE
61# define STACKSIZE PTHREAD_STACK_MIN 226#endif
227
228#if PAGESIZE <= 0
229# define PAGESIZE sysconf (_SC_PAGESIZE)
230#endif
231
232/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
62#else 239#else
63# define STACKSIZE 16384 240# 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 241#endif
76#endif
77 242
78/* buffer size for various temporary buffers */ 243/*****************************************************************************/
79#define AIO_BUFSIZE 65536
80 244
81#define dBUF \ 245#if !_POSIX_MAPPED_FILES
82 char *aio_buf; \ 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
83 LOCK (wrklock); \ 247# define munmap(addr,length) EIO_ENOSYS ()
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 248#endif
85 UNLOCK (wrklock); \ 249
86 if (!aio_buf) \ 250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
87 return -1; 278 return 0;
279}
88 280
89enum { 281static MGVTBL mmap_vtbl = {
90 REQ_QUIT, 282 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}; 283};
102 284
103#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
104#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
105
106typedef struct aio_cb
107{ 287{
108 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
109 290
110 SV *data, *callback; 291 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;
117 292
118 STRLEN dataoffset; 293 if (SvPVX (sv) != mg->mg_ptr)
119 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123 295
124 unsigned char flags; 296 SvCUR_set (sv, 0);
125 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
126 299
127 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
129} aio_cb;
130 302
131enum { 303static MGVTBL sysfree_vtbl = {
132 FLAG_CANCELLED = 0x01, 304 0, 0, 0, 0, sysfree_free
133}; 305};
134 306
135typedef aio_cb *aio_req; 307/*****************************************************************************/
136typedef aio_cb *aio_req_ornot;
137 308
138enum { 309/* helper: set scalar to foreign ptr with custom free */
139 PRI_MIN = -4, 310ecb_noinline
140 PRI_MAX = 4, 311static void
141 312sv_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{ 313{
182 if (wrk->dirp) 314 sv_force_normal (sv);
315
316 /* we store the length in mg_obj, as namlen is I32 :/ */
317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
318 ->mg_obj = (SV *)length;
319
320 SvUPGRADE (sv, SVt_PV); /* nop... */
321
322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329}
330
331static void
332sv_clear_foreign (SV *sv)
333{
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
344
345/*****************************************************************************/
346
347static void
348fiemap (eio_req *req)
349{
350 req->result = -1;
351
352#if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
368 return;
369
370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
378 return;
379
380 if (req->int3 >= 0 /* not autosizing */
381 || !fiemap->fm_mapped_extents /* no more extents */
382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
383 goto done;
384
385 /* else we have to loop -
386 * it would be tempting (actually I tried that first) to just query the
387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
391
392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
393
394 for (;;)
183 { 395 {
184 closedir (wrk->dirp); 396 /* 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; 397 char scratch[3072];
186 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
187 399
188 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
189 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
190 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
191 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
192 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
193}
194 405
195static void worker_free (worker *wrk) 406 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; 407 return;
242 408
243 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
244 411
245 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
246 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
247 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
248
249 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
250 { 421 {
251 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
252 q->qe[pri] = 0;
253 423
254 return req; 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
255 } 432 }
256 } 433 }
257 434
258 abort (); 435done:
259} 436 req->result = 0;
260 437
261static int poll_cb (int max); 438#else
262static void req_invoke (aio_req req); 439 errno = ENOSYS;
440#endif
441}
442
443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454#endif
455
456enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458};
459
460typedef eio_req *aio_req;
461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
463
464static SV *on_next_submit;
465static int next_pri = EIO_PRI_DEFAULT;
466static int max_outstanding;
467
468static s_epipe respipe;
469
263static void req_free (aio_req req); 470static void req_destroy (aio_req req);
264static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
265 472
473static void
474want_poll (void)
475{
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478}
479
480static void
481done_poll (void)
482{
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485}
486
266/* must be called at most once */ 487/* must be called at most once */
267static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
268{ 491{
269 if (!req->self) 492 if (!req->self)
270 { 493 {
271 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
272 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
273 } 496 }
274 497
275 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
276} 499}
277 500
278static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
279{ 510{
280 MAGIC *mg; 511 MAGIC *mg;
281 512
282 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
283 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
284 519
285 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
286 521
287 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
288} 523}
289 524
525static aio_wd
526SvAIO_WD (SV *sv)
527{
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534}
535
536static SV *
537newmortalFH (int fd, int flags)
538{
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559}
560
561static void
290static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
291{ 563{
292 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 564 if (grp->sv2 && SvOK (grp->sv2))
293 { 565 {
294 int old_len = grp->length;
295
296 if (grp->fh2 && SvOK (grp->fh2))
297 {
298 dSP; 566 dSP;
299 567
300 ENTER; 568 ENTER;
301 SAVETMPS; 569 SAVETMPS;
302 PUSHMARK (SP); 570 PUSHMARK (SP);
303 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
304 PUTBACK; 572 PUTBACK;
305 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
306 SPAGAIN; 574 SPAGAIN;
307 FREETMPS; 575 FREETMPS;
308 LEAVE; 576 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 } 577 }
319} 578}
320 579
321static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
322{ 583{
323 --grp->length; 584 eio_submit (req);
324 585
325 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
326 aio_grp_feed (grp);
327
328 /* finish, if done */
329 if (!grp->length && grp->fd)
330 { 587 {
331 req_invoke (grp); 588 dSP;
332 req_free (grp); 589 SV *cb = sv_2mortal (on_next_submit);
590
591 on_next_submit = 0;
592
593 PUSHMARK (SP);
594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
333 } 596 }
334} 597}
335 598
336static void poll_wait () 599static int
600req_invoke (eio_req *req)
337{ 601{
338 fd_set rfd; 602 if (req->flags & FLAG_SV2_RO_OFF)
603 SvREADONLY_off (req->sv2);
339 604
340 while (nreqs) 605 if (!EIO_CANCELLED (req) && req->callback)
341 { 606 {
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; 607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
360 610
361 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
362 {
363 ENTER; 611 ENTER;
364 SAVETMPS; 612 SAVETMPS;
365 PUSHMARK (SP); 613 PUSHMARK (SP);
366 EXTEND (SP, 1); 614 EXTEND (SP, 1);
367 615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
627 }
628
368 switch (req->type) 629 switch (req->type)
369 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
370 case REQ_READDIR: 635 case EIO_READDIR:
371 { 636 {
372 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
373 638
374 if (req->result >= 0) 639 if (req->result >= 0)
375 { 640 {
376 int i; 641 int i;
377 char *buf = req->data2ptr; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
378 AV *av = newAV (); 644 AV *av = newAV ();
379 645
380 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
381 647
382 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
383 { 649 {
384 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
385 653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
386 av_store (av, i, sv); 674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
387 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
388 } 684 }
389 685
390 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
391 } 687 }
392 688
393 PUSHs (rv); 689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
394 } 693 }
395 break; 694 break;
396 695
397 case REQ_OPEN: 696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
398 { 702 {
399 /* convert fd to fh */ 703 SV *rv = &PL_sv_undef;
400 SV *fh; 704
705#ifndef _WIN32
706 if (req->result >= 0)
707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
709 HV *hv = newHV ();
710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
711 * chooses to make it a struct.
712 */
713 unsigned long fsid = 0;
714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
401 715
402 PUSHs (sv_2mortal (newSViv (req->result))); 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
403 PUTBACK;
404 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
405 SPAGAIN;
406 717
407 fh = SvREFCNT_inc (POPs); 718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
729 }
730#endif
408 731
409 PUSHMARK (SP); 732 PUSHs (rv);
410 XPUSHs (sv_2mortal (fh));
411 } 733 }
734
412 break; 735 break;
413 736
414 case REQ_GROUP: 737 case EIO_GROUP:
415 req->fd = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
416 739
417 if (req->data) 740 if (req->sv1)
418 { 741 {
419 int i; 742 int i;
420 AV *av = (AV *)req->data; 743 AV *av = (AV *)req->sv1;
421 744
422 EXTEND (SP, AvFILL (av) + 1); 745 EXTEND (SP, AvFILL (av) + 1);
423 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
424 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
425 } 748 }
426 break; 749 break;
427 750
428 case REQ_NOP: 751 case EIO_NOP:
429 case REQ_BUSY: 752 case EIO_BUSY:
430 break; 753 break;
431 754
755 case EIO_READLINK:
756 case EIO_REALPATH:
757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
813 {
814#if HAVE_FIEMAP
815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845#endif
846 }
847 else
848 PUSHs (sv_result);
849 break;
850
851#if 0
852 case EIO_CLOSE:
853 PerlIOUnix_refcnt_dec (req->int1);
854 break;
855#endif
856
857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
858 if (req->result > 0)
859 SvIV_set (sv_result, 0);
860 /* FALLTHROUGH */
861
432 default: 862 default:
433 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
434 break; 864 break;
435 } 865 }
436 866
437 errno = req->errorno; 867 errno = req->errorno;
438 868
439 PUTBACK; 869 PUTBACK;
440 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
441 SPAGAIN; 871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
442 877
443 FREETMPS; 878 FREETMPS;
444 LEAVE; 879 LEAVE;
880
881 PUTBACK;
445 } 882 }
446 883
447 if (req->grp) 884 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} 885}
467 886
468static void req_free (aio_req req) 887static void
888req_destroy (aio_req req)
469{ 889{
470 if (req->self) 890 if (req->self)
471 { 891 {
472 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
473 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
474 } 894 }
475 895
476 SvREFCNT_dec (req->data);
477 SvREFCNT_dec (req->fh); 896 SvREFCNT_dec (req->sv1);
478 SvREFCNT_dec (req->fh2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
479 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
480 Safefree (req->statdata);
481 901
482 if (req->type == REQ_READDIR)
483 free (req->data2ptr);
484
485 Safefree (req); 902 free (req);
486} 903}
487 904
905static void
488static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
489{ 907{
490 aio_req sub;
491
492 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
493 return; 909 return;
494 910
495 SvREFCNT_dec (grp->fh2); 911 SvREFCNT_dec (grp->sv2);
496 grp->fh2 = 0; 912 grp->sv2 = 0;
497 913
498 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
499 req_cancel (sub);
500} 915}
501 916
502static void req_cancel (aio_req req) 917ecb_cold
918static void
919create_respipe (void)
503{ 920{
504 req->flags |= FLAG_CANCELLED; 921 if (s_epipe_renew (&respipe))
505 922 croak ("IO::AIO: unable to initialize result pipe");
506 req_cancel_subs (req);
507} 923}
508 924
509static int poll_cb (int max) 925static void
926poll_wait (void)
510{ 927{
511 dSP; 928 while (eio_nreqs ())
512 int count = 0; 929 {
513 int do_croak = 0; 930 int size;
514 aio_req req;
515 931
932 X_LOCK (EIO_POOL->reslock);
933 size = EIO_POOL->res_queue.size;
934 X_UNLOCK (EIO_POOL->reslock);
935
936 if (size)
937 return;
938
939 etp_maybe_start_thread (EIO_POOL);
940
941 s_epipe_wait (&respipe);
942 }
943}
944
945static int
946poll_cb (void)
947{
516 for (;;) 948 for (;;)
517 { 949 {
518 while (max <= 0 || count < max) 950 int res = eio_poll ();
951
952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960}
961
962ecb_cold
963static void
964reinit (void)
965{
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970}
971
972/*****************************************************************************/
973
974static SV *
975get_cb (SV *cb_sv)
976{
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979}
980
981ecb_noinline
982static aio_req ecb_noinline
983dreq (SV *callback)
984{
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000}
1001
1002#define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014ecb_inline
1015void
1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017{
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
519 { 1024 {
520 LOCK (reslock); 1025 path = AvARRAY (rv)[1];
521 req = reqq_shift (&res_queue); 1026 wdob = AvARRAY (rv)[0];
522 1027
523 if (req) 1028 if (SvOK (wdob))
524 { 1029 {
525 --npending; 1030 *wd = SvAIO_WD (wdob);
526 1031 *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 } 1032 }
550 else 1033 else
551 { 1034 *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 } 1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
572 1046
573 if (nreqs <= max_outstanding) 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049}
1050
1051ecb_noinline
1052static void
1053req_set_path1 (aio_req req, SV *path)
1054{
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056}
1057
1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
574 break; 1072 break;
575 1073
576 poll_wait (); 1074 default:
577 1075 req->type = type_path;
578 max = 0; 1076 req_set_path1 (req, fh_or_path);
1077 break;
579 } 1078 }
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} 1079}
683 1080
684/*****************************************************************************/ 1081/*****************************************************************************/
685/* work around various missing functions */
686 1082
687#if !HAVE_PREADWRITE 1083static void
688# define pread aio_pread 1084ts_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{ 1085{
700 ssize_t res; 1086 ts->tv_sec = value;
701 off_t ooffset; 1087 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} 1088}
712 1089
713static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
714{ 1092{
715 ssize_t res; 1093 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} 1094}
727#endif
728 1095
729#if !HAVE_FDATASYNC 1096/*****************************************************************************/
730# define fdatasync fsync
731#endif
732 1097
733#if !HAVE_READAHEAD 1098XS(boot_IO__AIO) ecb_cold;
734# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
735 1099
736static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1100MODULE = IO::AIO PACKAGE = IO::AIO
737{
738 dBUF;
739 1101
740 while (count > 0) 1102PROTOTYPES: ENABLE
741 {
742 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
743 1103
744 pread (fd, aio_buf, len, offset); 1104BOOT:
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{ 1105{
761 struct dirent *e; 1106 static const struct {
762 int errorno; 1107 const char *name;
1108 IV iv;
1109 } *civ, const_iv[] = {
1110# define const_niv(name, value) { # name, (IV) value },
1111# define const_iv(name) { # name, (IV) name },
1112# define const_eio(name) { # name, (IV) EIO_ ## name },
763 1113
764 LOCK (readdirlock); 1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
765 1119
766 e = readdir (dirp); 1120 /* for lseek */
767 errorno = errno; 1121 const_iv (SEEK_DATA)
1122 const_iv (SEEK_HOLE)
768 1123
769 if (e) 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
770 { 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
771 *res = ent; 1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
772 strcpy (ent->d_name, e->d_name); 1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
773 } 1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
774 else 1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
775 *res = 0;
776 1130
777 UNLOCK (readdirlock); 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
778 1136
779 errno = errorno; 1137 /* the second block will be 0 when missing */
780 return e ? 0 : -1; 1138 const_iv (O_ACCMODE)
781}
782#endif
783 1139
784/* sendfile always needs emulation */ 1140 const_iv (O_RDONLY)
785static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1141 const_iv (O_WRONLY)
786{ 1142 const_iv (O_RDWR)
787 ssize_t res; 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
788 1147
789 if (!count) 1148 const_iv (O_ASYNC)
790 return 0; 1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
791 1151
792#if HAVE_SENDFILE 1152 const_iv (O_CLOEXEC)
793# if __linux 1153 const_iv (O_NOCTTY)
794 res = sendfile (ofd, ifd, &offset, count); 1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
795 1165
796# elif __freebsd 1166 const_iv (S_IFIFO)
797 /* 1167 const_iv (S_IFCHR)
798 * Of course, the freebsd sendfile is a dire hack with no thoughts 1168 const_iv (S_IFBLK)
799 * wasted on making it similar to other I/O functions. 1169 const_iv (S_IFLNK)
800 */ 1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
1175
1176 const_iv (ST_RDONLY)
1177 const_iv (ST_NOSUID)
1178 const_iv (ST_NODEV)
1179 const_iv (ST_NOEXEC)
1180 const_iv (ST_SYNCHRONOUS)
1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
1188
1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
1193
1194 const_iv (MAP_PRIVATE)
1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
1198
1199 /* linuxish */
1200 const_iv (MAP_LOCKED)
1201 const_iv (MAP_NORESERVE)
1202 const_iv (MAP_POPULATE)
1203 const_iv (MAP_NONBLOCK)
1204 const_iv (MAP_GROWSDOWN)
1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
1212
1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
1215
1216 const_iv (MSG_CMSG_CLOEXEC)
1217 const_iv (SOCK_CLOEXEC)
1218
1219 const_iv (F_DUPFD_CLOEXEC)
1220
1221 const_iv (F_ADD_SEALS)
1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
1227
1228 const_iv (F_OFD_GETLK)
1229 const_iv (F_OFD_SETLK)
1230 const_iv (F_OFD_GETLKW)
1231
1232 const_iv (FIFREEZE)
1233 const_iv (FITHAW)
1234 const_iv (FITRIM)
1235 const_iv (FICLONE)
1236 const_iv (FICLONERANGE)
1237 const_iv (FIDEDUPERANGE)
1238
1239 const_iv (FS_IOC_GETFLAGS)
1240 const_iv (FS_IOC_SETFLAGS)
1241 const_iv (FS_IOC_GETVERSION)
1242 const_iv (FS_IOC_SETVERSION)
1243 const_iv (FS_IOC_FIEMAP)
1244 const_iv (FS_IOC_FSGETXATTR)
1245 const_iv (FS_IOC_FSSETXATTR)
1246 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1247 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1248 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1249
1250 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1251
1252 const_iv (FS_SECRM_FL)
1253 const_iv (FS_UNRM_FL)
1254 const_iv (FS_COMPR_FL)
1255 const_iv (FS_SYNC_FL)
1256 const_iv (FS_IMMUTABLE_FL)
1257 const_iv (FS_APPEND_FL)
1258 const_iv (FS_NODUMP_FL)
1259 const_iv (FS_NOATIME_FL)
1260 const_iv (FS_DIRTY_FL)
1261 const_iv (FS_COMPRBLK_FL)
1262 const_iv (FS_NOCOMP_FL)
1263 const_iv (FS_ENCRYPT_FL)
1264 const_iv (FS_BTREE_FL)
1265 const_iv (FS_INDEX_FL)
1266 const_iv (FS_JOURNAL_DATA_FL)
1267 const_iv (FS_NOTAIL_FL)
1268 const_iv (FS_DIRSYNC_FL)
1269 const_iv (FS_TOPDIR_FL)
1270 const_iv (FS_FL_USER_MODIFIABLE)
1271
1272 const_iv (FS_XFLAG_REALTIME)
1273 const_iv (FS_XFLAG_PREALLOC)
1274 const_iv (FS_XFLAG_IMMUTABLE)
1275 const_iv (FS_XFLAG_APPEND)
1276 const_iv (FS_XFLAG_SYNC)
1277 const_iv (FS_XFLAG_NOATIME)
1278 const_iv (FS_XFLAG_NODUMP)
1279 const_iv (FS_XFLAG_RTINHERIT)
1280 const_iv (FS_XFLAG_PROJINHERIT)
1281 const_iv (FS_XFLAG_NOSYMLINKS)
1282 const_iv (FS_XFLAG_EXTSIZE)
1283 const_iv (FS_XFLAG_EXTSZINHERIT)
1284 const_iv (FS_XFLAG_NODEFRAG)
1285 const_iv (FS_XFLAG_FILESTREAM)
1286 const_iv (FS_XFLAG_DAX)
1287 const_iv (FS_XFLAG_HASATTR)
1288
1289 const_iv (FIEMAP_FLAG_SYNC)
1290 const_iv (FIEMAP_FLAG_XATTR)
1291 const_iv (FIEMAP_FLAGS_COMPAT)
1292 const_iv (FIEMAP_EXTENT_LAST)
1293 const_iv (FIEMAP_EXTENT_UNKNOWN)
1294 const_iv (FIEMAP_EXTENT_DELALLOC)
1295 const_iv (FIEMAP_EXTENT_ENCODED)
1296 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1297 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1298 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1299 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1300 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1301 const_iv (FIEMAP_EXTENT_MERGED)
1302 const_iv (FIEMAP_EXTENT_SHARED)
1303
1304 const_iv (SPLICE_F_MOVE)
1305 const_iv (SPLICE_F_NONBLOCK)
1306 const_iv (SPLICE_F_MORE)
1307 const_iv (SPLICE_F_GIFT)
1308
1309 const_iv (EFD_CLOEXEC)
1310 const_iv (EFD_NONBLOCK)
1311 const_iv (EFD_SEMAPHORE)
1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316 const_iv (MFD_HUGETLB_2MB)
1317 const_iv (MFD_HUGETLB_1GB)
1318
1319 const_iv (CLOCK_REALTIME)
1320 const_iv (CLOCK_MONOTONIC)
1321 const_iv (CLOCK_BOOTTIME)
1322 const_iv (CLOCK_REALTIME_ALARM)
1323 const_iv (CLOCK_BOOTTIME_ALARM)
1324
1325 const_iv (TFD_NONBLOCK)
1326 const_iv (TFD_CLOEXEC)
1327
1328 const_iv (TFD_TIMER_ABSTIME)
1329 const_iv (TFD_TIMER_CANCEL_ON_SET)
1330
1331 const_iv (STATX_TYPE)
1332 const_iv (STATX_MODE)
1333 const_iv (STATX_NLINK)
1334 const_iv (STATX_UID)
1335 const_iv (STATX_GID)
1336 const_iv (STATX_ATIME)
1337 const_iv (STATX_MTIME)
1338 const_iv (STATX_CTIME)
1339 const_iv (STATX_INO)
1340 const_iv (STATX_SIZE)
1341 const_iv (STATX_BLOCKS)
1342 const_iv (STATX_BASIC_STATS)
1343 const_iv (STATX_ALL)
1344 const_iv (STATX_BTIME)
1345 const_iv (STATX_ATTR_COMPRESSED)
1346 const_iv (STATX_ATTR_IMMUTABLE)
1347 const_iv (STATX_ATTR_APPEND)
1348 const_iv (STATX_ATTR_NODUMP)
1349 const_iv (STATX_ATTR_ENCRYPTED)
1350 const_iv (STATX_ATTR_AUTOMOUNT)
1351
1352 const_iv (AT_FDCWD)
1353 const_iv (AT_SYMLINK_NOFOLLOW)
1354 const_iv (AT_EACCESS)
1355 const_iv (AT_REMOVEDIR)
1356 const_iv (AT_SYMLINK_FOLLOW)
1357 const_iv (AT_NO_AUTOMOUNT)
1358 const_iv (AT_EMPTY_PATH)
1359 const_iv (AT_STATX_SYNC_TYPE)
1360 const_iv (AT_STATX_AS_STAT)
1361 const_iv (AT_STATX_FORCE_SYNC)
1362 const_iv (AT_STATX_DONT_SYNC)
1363 const_iv (AT_RECURSIVE)
1364
1365 const_iv (OPEN_TREE_CLONE)
1366
1367 const_iv (FSOPEN_CLOEXEC)
1368
1369 const_iv (FSPICK_CLOEXEC)
1370 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1371 const_iv (FSPICK_NO_AUTOMOUNT)
1372 const_iv (FSPICK_EMPTY_PATH)
1373
1374 const_iv (MOVE_MOUNT_F_SYMLINKS)
1375 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1376 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1377 const_iv (MOVE_MOUNT_T_SYMLINKS)
1378 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1379 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1380
1381 /* waitid */
1382 const_iv (P_PID)
1383 const_iv (P_PIDFD)
1384 const_iv (P_PGID)
1385 const_iv (P_ALL)
1386
1387 const_iv (FSCONFIG_SET_FLAG)
1388 const_iv (FSCONFIG_SET_STRING)
1389 const_iv (FSCONFIG_SET_BINARY)
1390 const_iv (FSCONFIG_SET_PATH)
1391 const_iv (FSCONFIG_SET_PATH_EMPTY)
1392 const_iv (FSCONFIG_SET_FD)
1393 const_iv (FSCONFIG_CMD_CREATE)
1394 const_iv (FSCONFIG_CMD_RECONFIGURE)
1395
1396 const_iv (MOUNT_ATTR_RDONLY)
1397 const_iv (MOUNT_ATTR_NOSUID)
1398 const_iv (MOUNT_ATTR_NODEV)
1399 const_iv (MOUNT_ATTR_NOEXEC)
1400 const_iv (MOUNT_ATTR__ATIME)
1401 const_iv (MOUNT_ATTR_RELATIME)
1402 const_iv (MOUNT_ATTR_NOATIME)
1403 const_iv (MOUNT_ATTR_STRICTATIME)
1404 const_iv (MOUNT_ATTR_NODIRATIME)
1405
1406 /* these are libeio constants, and are independent of gendef0 */
1407 const_eio (SEEK_SET)
1408 const_eio (SEEK_CUR)
1409 const_eio (SEEK_END)
1410
1411 const_eio (MCL_FUTURE)
1412 const_eio (MCL_CURRENT)
1413 const_eio (MCL_ONFAULT)
1414
1415 const_eio (MS_ASYNC)
1416 const_eio (MS_INVALIDATE)
1417 const_eio (MS_SYNC)
1418
1419 const_eio (MT_MODIFY)
1420
1421 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1422 const_eio (SYNC_FILE_RANGE_WRITE)
1423 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1424
1425 const_eio (FALLOC_FL_KEEP_SIZE)
1426 const_eio (FALLOC_FL_PUNCH_HOLE)
1427 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1428 const_eio (FALLOC_FL_ZERO_RANGE)
1429 const_eio (FALLOC_FL_INSERT_RANGE)
1430 const_eio (FALLOC_FL_UNSHARE_RANGE)
1431
1432 const_eio (RENAME_NOREPLACE)
1433 const_eio (RENAME_EXCHANGE)
1434 const_eio (RENAME_WHITEOUT)
1435
1436 const_eio (READDIR_DENTS)
1437 const_eio (READDIR_DIRS_FIRST)
1438 const_eio (READDIR_STAT_ORDER)
1439 const_eio (READDIR_FOUND_UNKNOWN)
1440
1441 const_eio (DT_UNKNOWN)
1442 const_eio (DT_FIFO)
1443 const_eio (DT_CHR)
1444 const_eio (DT_DIR)
1445 const_eio (DT_BLK)
1446 const_eio (DT_REG)
1447 const_eio (DT_LNK)
1448 const_eio (DT_SOCK)
1449 const_eio (DT_WHT)
1450 };
1451
1452 aio_stash = gv_stashpv ("IO::AIO" , 1);
1453 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1454 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1455 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1456
1457 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1458 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1459
1460 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1461
1462 /* allocate dummy pipe fd for aio_close */
801 { 1463 {
802 off_t sbytes; 1464 int pipefd [2];
803 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
804 1465
805 if (res < 0 && sbytes) 1466 if (
806 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1467#ifdef _WIN32
807 res = sbytes; 1468 _pipe (pipefd, 1, _O_BINARY) < 0
1469#else
1470 pipe (pipefd) < 0
1471 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1472#endif
1473 || close (pipefd [1]) < 0
1474 )
1475 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1476
1477 close_fd = pipefd [0];
808 } 1478 }
809 1479
810# elif __hpux 1480 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} 1481}
876 1482
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 1483void
1132min_parallel (int nthreads) 1484reinit ()
1133 PROTOTYPE: $ 1485 PROTOTYPE:
1134 1486
1135void 1487void
1136max_parallel (int nthreads) 1488max_poll_reqs (unsigned int nreqs)
1137 PROTOTYPE: $
1138
1139int
1140max_outstanding (int maxreqs)
1141 PROTOTYPE: $ 1489 PROTOTYPE: $
1142 CODE: 1490 CODE:
1143 RETVAL = max_outstanding; 1491 eio_set_max_poll_reqs (nreqs);
1492
1493void
1494max_poll_time (double nseconds)
1495 PROTOTYPE: $
1496 CODE:
1497 eio_set_max_poll_time (nseconds);
1498
1499void
1500min_parallel (unsigned int nthreads)
1501 PROTOTYPE: $
1502 CODE:
1503 eio_set_min_parallel (nthreads);
1504
1505void
1506max_parallel (unsigned int nthreads)
1507 PROTOTYPE: $
1508 CODE:
1509 eio_set_max_parallel (nthreads);
1510
1511void
1512max_idle (unsigned int nthreads)
1513 PROTOTYPE: $
1514 CODE:
1515 eio_set_max_idle (nthreads);
1516
1517void
1518idle_timeout (unsigned int seconds)
1519 PROTOTYPE: $
1520 CODE:
1521 eio_set_idle_timeout (seconds);
1522
1523void
1524max_outstanding (unsigned int maxreqs)
1525 PROTOTYPE: $
1526 CODE:
1144 max_outstanding = maxreqs; 1527 max_outstanding = maxreqs;
1145 OUTPUT:
1146 RETVAL
1147 1528
1148void 1529void
1149aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1530aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1150 SV * pathname
1151 int flags
1152 int mode
1153 SV * callback
1154 PROTOTYPE: $$$;$
1155 PPCODE: 1531 PPCODE:
1156{ 1532{
1157 dREQ; 1533 dREQ;
1158 1534
1159 req->type = REQ_OPEN; 1535 req->type = EIO_WD_OPEN;
1160 req->data = newSVsv (pathname); 1536 req_set_path1 (req, pathname);
1161 req->dataptr = SvPVbyte_nolen (req->data);
1162 req->fd = flags;
1163 req->mode = mode;
1164 1537
1165 REQ_SEND; 1538 REQ_SEND;
1166} 1539}
1167 1540
1168void 1541void
1542aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->type = EIO_OPEN;
1548 req_set_path1 (req, pathname);
1549 req->int1 = flags;
1550 req->int2 = mode;
1551
1552 REQ_SEND;
1553}
1554
1555void
1169aio_close (fh,callback=&PL_sv_undef) 1556aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1170 SV * fh
1171 SV * callback
1172 PROTOTYPE: $;$
1173 ALIAS: 1557 ALIAS:
1174 aio_close = REQ_CLOSE
1175 aio_fsync = REQ_FSYNC 1558 aio_fsync = EIO_FSYNC
1176 aio_fdatasync = REQ_FDATASYNC 1559 aio_fdatasync = EIO_FDATASYNC
1560 aio_syncfs = EIO_SYNCFS
1177 PPCODE: 1561 PPCODE:
1178{ 1562{
1563 int fd = s_fileno_croak (fh, 0);
1179 dREQ; 1564 dREQ;
1180 1565
1181 req->type = ix; 1566 req->type = ix;
1182 req->fh = newSVsv (fh); 1567 req->sv1 = newSVsv (fh);
1183 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1568 req->int1 = fd;
1184 1569
1185 REQ_SEND (req); 1570 REQ_SEND;
1186} 1571}
1187 1572
1188void 1573void
1574aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1575 PPCODE:
1576{
1577 int fd = s_fileno_croak (fh, 0);
1578 dREQ;
1579
1580 req->type = EIO_SYNC_FILE_RANGE;
1581 req->sv1 = newSVsv (fh);
1582 req->int1 = fd;
1583 req->offs = offset;
1584 req->size = nbytes;
1585 req->int2 = flags;
1586
1587 REQ_SEND;
1588}
1589
1590void
1591aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1592 PPCODE:
1593{
1594 int fd = s_fileno_croak (fh, 0);
1595 dREQ;
1596
1597 req->type = EIO_FALLOCATE;
1598 req->sv1 = newSVsv (fh);
1599 req->int1 = fd;
1600 req->int2 = mode;
1601 req->offs = offset;
1602 req->size = len;
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_close (SV *fh, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 int fd = s_fileno_croak (fh, 0);
1612 dREQ;
1613#if 0
1614 /* partially duplicate logic in s_fileno */
1615 SvGETMAGIC (fh);
1616
1617 if (SvROK (fh))
1618 {
1619 fh = SvRV (fh);
1620 SvGETMAGIC (fh);
1621 }
1622
1623 if (SvTYPE (fh) == SVt_PVGV)
1624 {
1625 /* perl filehandle */
1626 PerlIOUnix_refcnt_inc (fd);
1627 do_close ((GV *)fh, 1);
1628
1629 req->type = EIO_CLOSE;
1630 req->int1 = fd;
1631 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1632 }
1633 else
1634#endif
1635 {
1636 /* fd number */
1637 req->type = EIO_DUP2;
1638 req->int1 = close_fd;
1639 req->sv2 = newSVsv (fh);
1640 req->int2 = fd;
1641 }
1642
1643 REQ_SEND;
1644}
1645
1646void
1647aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1648 PPCODE:
1649{
1650 int fd = s_fileno_croak (fh, 0);
1651 dREQ;
1652
1653 req->type = EIO_SEEK;
1654 req->sv1 = newSVsv (fh);
1655 req->int1 = fd;
1656 req->offs = SvVAL64 (offset);
1657 req->int2 = whence;
1658
1659 REQ_SEND;
1660}
1661
1662void
1189aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1663aio_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: 1664 ALIAS:
1197 aio_read = REQ_READ 1665 aio_read = EIO_READ
1198 aio_write = REQ_WRITE 1666 aio_write = EIO_WRITE
1199 PROTOTYPE: $$$$$;$
1200 PPCODE: 1667 PPCODE:
1201{ 1668{
1202 aio_req req;
1203 STRLEN svlen; 1669 STRLEN svlen;
1670 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1204 char *svptr = SvPVbyte (data, svlen); 1671 char *svptr = SvPVbyte (data, svlen);
1205 1672 UV len = SvUV (length);
1206 SvUPGRADE (data, SVt_PV);
1207 SvPOK_on (data);
1208 1673
1209 if (dataoffset < 0) 1674 if (dataoffset < 0)
1210 dataoffset += svlen; 1675 dataoffset += svlen;
1211 1676
1212 if (dataoffset < 0 || dataoffset > svlen) 1677 if (dataoffset < 0 || dataoffset > svlen)
1213 croak ("data offset outside of string"); 1678 croak ("dataoffset outside of data scalar");
1214 1679
1215 if (ix == REQ_WRITE) 1680 if (ix == EIO_WRITE)
1216 { 1681 {
1217 /* write: check length and adjust. */ 1682 /* write: check length and adjust. */
1218 if (length < 0 || length + dataoffset > svlen) 1683 if (!SvOK (length) || len + dataoffset > svlen)
1219 length = svlen - dataoffset; 1684 len = svlen - dataoffset;
1220 } 1685 }
1221 else 1686 else
1222 { 1687 {
1223 /* read: grow scalar as necessary */ 1688 /* read: check type and grow scalar as necessary */
1689 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1224 svptr = SvGROW (data, length + dataoffset); 1690 svptr = sv_grow (data, len + dataoffset + 1);
1691 else if (SvCUR (data) < len + dataoffset)
1692 croak ("length + dataoffset outside of scalar, and cannot grow");
1225 } 1693 }
1226
1227 if (length < 0)
1228 croak ("length must not be negative");
1229 1694
1230 { 1695 {
1231 dREQ; 1696 dREQ;
1232 1697
1233 req->type = ix; 1698 req->type = ix;
1234 req->fh = newSVsv (fh); 1699 req->sv1 = newSVsv (fh);
1235 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1700 req->int1 = fd;
1236 : IoOFP (sv_2io (fh))); 1701 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237 req->offset = offset; 1702 req->size = len;
1238 req->length = length;
1239 req->data = SvREFCNT_inc (data); 1703 req->sv2 = SvREFCNT_inc (data);
1240 req->dataptr = (char *)svptr + dataoffset; 1704 req->ptr2 = (char *)svptr + dataoffset;
1705 req->stroffset = dataoffset;
1241 1706
1242 if (!SvREADONLY (data)) 1707 if (!SvREADONLY (data))
1243 { 1708 {
1244 SvREADONLY_on (data); 1709 SvREADONLY_on (data);
1245 req->data2ptr = (void *)data; 1710 req->flags |= FLAG_SV2_RO_OFF;
1246 } 1711 }
1247 1712
1248 REQ_SEND; 1713 REQ_SEND;
1249 } 1714 }
1250} 1715}
1251 1716
1252void 1717void
1253aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1718aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1254 SV * out_fh 1719 ALIAS:
1255 SV * in_fh 1720 aio_ioctl = EIO_IOCTL
1256 UV in_offset 1721 aio_fcntl = EIO_FCNTL
1257 UV length
1258 SV * callback
1259 PROTOTYPE: $$$$;$
1260 PPCODE: 1722 PPCODE:
1261{ 1723{
1262 dREQ; 1724 int fd = s_fileno_croak (fh, 0);
1725 char *svptr;
1263 1726
1264 req->type = REQ_SENDFILE; 1727 if (SvPOK (arg) || !SvNIOK (arg))
1265 req->fh = newSVsv (out_fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1267 req->fh2 = newSVsv (in_fh);
1268 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1269 req->offset = in_offset;
1270 req->length = length;
1271
1272 REQ_SEND;
1273}
1274
1275void
1276aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1277 SV * fh
1278 UV offset
1279 IV length
1280 SV * callback
1281 PROTOTYPE: $$$;$
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 { 1728 {
1309 req_free (req); 1729 STRLEN svlen;
1310 croak ("out of memory during aio_req->statdata allocation"); 1730 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1311 } 1731#ifdef IOCPARM_LEN
1732 STRLEN need = IOCPARM_LEN (request);
1733#else
1734 STRLEN need = 256;
1735#endif
1312 1736
1313 if (SvPOK (fh_or_path)) 1737 if (svlen < need)
1314 { 1738 svptr = SvGROW (arg, need);
1315 req->type = ix;
1316 req->data = newSVsv (fh_or_path);
1317 req->dataptr = SvPVbyte_nolen (req->data);
1318 } 1739 }
1319 else 1740 else
1741 svptr = (char *)SvIV (arg);
1742
1320 { 1743 {
1744 dREQ;
1745
1321 req->type = REQ_FSTAT; 1746 req->type = ix;
1322 req->fh = newSVsv (fh_or_path); 1747 req->sv1 = newSVsv (fh);
1323 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1748 req->int1 = fd;
1749 req->int2 = (long)request;
1750 req->sv2 = SvREFCNT_inc (arg);
1751 req->ptr2 = svptr;
1752
1753 REQ_SEND;
1324 } 1754 }
1755}
1756
1757void
1758aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1759 ALIAS:
1760 aio_readlink = EIO_READLINK
1761 aio_realpath = EIO_REALPATH
1762 PPCODE:
1763{
1764 dREQ;
1765
1766 req->type = ix;
1767 req_set_path1 (req, pathname);
1325 1768
1326 REQ_SEND; 1769 REQ_SEND;
1327} 1770}
1328 1771
1329void 1772void
1330aio_unlink (pathname,callback=&PL_sv_undef) 1773aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1331 SV * pathname 1774 PPCODE:
1332 SV * callback 1775{
1776 int ifd = s_fileno_croak (in_fh , 0);
1777 int ofd = s_fileno_croak (out_fh, 1);
1778 dREQ;
1779
1780 req->type = EIO_SENDFILE;
1781 req->sv1 = newSVsv (out_fh);
1782 req->int1 = ofd;
1783 req->sv2 = newSVsv (in_fh);
1784 req->int2 = ifd;
1785 req->offs = in_offset;
1786 req->size = length;
1787
1788 REQ_SEND;
1789}
1790
1791void
1792aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1793 PPCODE:
1794{
1795 int fd = s_fileno_croak (fh, 0);
1796 dREQ;
1797
1798 req->type = EIO_READAHEAD;
1799 req->sv1 = newSVsv (fh);
1800 req->int1 = fd;
1801 req->offs = offset;
1802 req->size = length;
1803
1804 REQ_SEND;
1805}
1806
1807void
1808aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1333 ALIAS: 1809 ALIAS:
1810 aio_stat = EIO_STAT
1811 aio_lstat = EIO_LSTAT
1812 aio_statvfs = EIO_STATVFS
1813 PPCODE:
1814{
1815 dREQ;
1816
1817 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1818
1819 REQ_SEND;
1820}
1821
1822void
1823st_xtime ()
1824 ALIAS:
1825 st_atime = 0x01
1826 st_mtime = 0x02
1827 st_ctime = 0x04
1828 st_btime = 0x08
1829 st_xtime = 0x0f
1830 PPCODE:
1831 EXTEND (SP, 4);
1832 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1833 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1834 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1835 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1836
1837void
1838st_xtimensec ()
1839 ALIAS:
1840 st_atimensec = 0x01
1841 st_mtimensec = 0x02
1842 st_ctimensec = 0x04
1843 st_btimensec = 0x08
1844 st_xtimensec = 0x0f
1845 st_btimesec = 0x10
1846 st_gen = 0x20
1847 PPCODE:
1848 EXTEND (SP, 4);
1849 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1850 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1851 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1852 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1853 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1854 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1855
1856UV
1857major (UV dev)
1858 ALIAS:
1859 minor = 1
1860 CODE:
1861 RETVAL = ix ? minor (dev) : major (dev);
1862 OUTPUT:
1863 RETVAL
1864
1865UV
1866makedev (UV maj, UV min)
1867 CODE:
1868 RETVAL = makedev (maj, min);
1869 OUTPUT:
1870 RETVAL
1871
1872void
1873aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1874 PPCODE:
1875{
1876 dREQ;
1877
1878 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1879 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1880 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1881
1882 REQ_SEND;
1883}
1884
1885void
1886aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1887 PPCODE:
1888{
1889 dREQ;
1890
1891 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1892 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1899 PPCODE:
1900{
1901 dREQ;
1902
1903 req->int2 = mode;
1904 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1916 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1917 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1918
1919 REQ_SEND;
1920}
1921
1922void
1923aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1924 PPCODE:
1925{
1926 dREQ;
1927
1928 req->type = EIO_READDIR;
1929 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1930
1931 if (flags & EIO_READDIR_DENTS)
1932 req->int1 |= EIO_READDIR_CUSTOM2;
1933
1934 req_set_path1 (req, pathname);
1935
1936 REQ_SEND;
1937}
1938
1939void
1940aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1941 PPCODE:
1942{
1943 dREQ;
1944
1945 req->type = EIO_MKDIR;
1946 req->int2 = mode;
1947 req_set_path1 (req, pathname);
1948
1949 REQ_SEND;
1950}
1951
1952void
1953aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1954 ALIAS:
1334 aio_unlink = REQ_UNLINK 1955 aio_unlink = EIO_UNLINK
1335 aio_rmdir = REQ_RMDIR 1956 aio_rmdir = EIO_RMDIR
1336 aio_readdir = REQ_READDIR 1957 aio_readdir = EIO_READDIR
1337 PPCODE: 1958 PPCODE:
1338{ 1959{
1339 dREQ; 1960 dREQ;
1340 1961
1341 req->type = ix; 1962 req->type = ix;
1342 req->data = newSVsv (pathname); 1963 req_set_path1 (req, pathname);
1343 req->dataptr = SvPVbyte_nolen (req->data); 1964
1344
1345 REQ_SEND; 1965 REQ_SEND;
1346} 1966}
1347 1967
1348void 1968void
1349aio_link (oldpath,newpath,callback=&PL_sv_undef) 1969aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1350 SV * oldpath
1351 SV * newpath
1352 SV * callback
1353 ALIAS: 1970 ALIAS:
1354 aio_link = REQ_LINK 1971 aio_link = EIO_LINK
1355 aio_symlink = REQ_SYMLINK 1972 aio_symlink = EIO_SYMLINK
1356 aio_rename = REQ_RENAME 1973 aio_rename = EIO_RENAME
1357 PPCODE: 1974 PPCODE:
1358{ 1975{
1976 eio_wd wd2 = 0;
1359 dREQ; 1977 dREQ;
1360 1978
1361 req->type = ix; 1979 req->type = ix;
1362 req->fh = newSVsv (oldpath); 1980 req_set_path1 (req, oldpath);
1363 req->data2ptr = SvPVbyte_nolen (req->fh); 1981 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1364 req->data = newSVsv (newpath); 1982 req->int3 = (long)wd2;
1365 req->dataptr = SvPVbyte_nolen (req->data);
1366 1983
1367 REQ_SEND; 1984 REQ_SEND;
1368} 1985}
1369 1986
1370void 1987void
1371aio_busy (delay,callback=&PL_sv_undef) 1988aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1372 double delay
1373 SV * callback
1374 PPCODE: 1989 PPCODE:
1375{ 1990{
1991 eio_wd wd2 = 0;
1376 dREQ; 1992 dREQ;
1377 1993
1378 req->type = REQ_BUSY; 1994 req->type = EIO_RENAME;
1379 req->fd = delay < 0. ? 0 : delay; 1995 req_set_path1 (req, oldpath);
1380 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1996 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1381 1997 req->int2 = flags;
1998 req->int3 = (long)wd2;
1999
1382 REQ_SEND; 2000 REQ_SEND;
1383} 2001}
1384 2002
1385void 2003void
1386aio_group (callback=&PL_sv_undef) 2004aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1387 SV * callback 2005 PPCODE:
1388 PROTOTYPE: ;$ 2006{
2007 dREQ;
2008
2009 req->type = EIO_MKNOD;
2010 req->int2 = (mode_t)mode;
2011 req->offs = dev;
2012 req_set_path1 (req, pathname);
2013
2014 REQ_SEND;
2015}
2016
2017void
2018aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2019 ALIAS:
2020 aio_mtouch = EIO_MTOUCH
2021 aio_msync = EIO_MSYNC
1389 PPCODE: 2022 PPCODE:
1390{ 2023{
2024 STRLEN svlen;
2025 char *svptr = SvPVbyte (data, svlen);
2026 UV len = SvUV (length);
2027
2028 if (flags < 0)
2029 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = ix;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047 req->int1 = flags;
2048
2049 REQ_SEND;
2050 }
2051}
2052
2053void
2054aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2055 PPCODE:
2056{
2057 STRLEN svlen;
2058 char *svptr = SvPVbyte (data, svlen);
2059 UV len = SvUV (length);
2060
2061 if (offset < 0)
2062 offset += svlen;
2063
2064 if (offset < 0 || offset > svlen)
2065 croak ("offset outside of scalar");
2066
2067 if (!SvOK (length) || len + offset > svlen)
2068 len = svlen - offset;
2069
2070 {
2071 dREQ;
2072
2073 req->type = EIO_MLOCK;
2074 req->sv2 = SvREFCNT_inc (data);
2075 req->ptr2 = (char *)svptr + offset;
2076 req->size = len;
2077
2078 REQ_SEND;
2079 }
2080}
2081
2082void
2083aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2084 PPCODE:
2085{
2086 dREQ;
2087
2088 req->type = EIO_MLOCKALL;
2089 req->int1 = flags;
2090
2091 REQ_SEND;
2092}
2093
2094void
2095aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2096 PPCODE:
2097{
2098 int fd = s_fileno_croak (fh, 0);
1391 dREQ; 2099 dREQ;
1392 2100
1393 req->type = REQ_GROUP; 2101 req->type = EIO_CUSTOM;
1394 req_send (req); 2102 req->sv1 = newSVsv (fh);
2103 req->int1 = fd;
1395 2104
1396 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2105 req->feed = fiemap;
1397} 2106#if HAVE_FIEMAP
2107 /* keep our fingers crossed that the next two types are 64 bit */
2108 req->offs = start;
2109 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2110 req->int2 = flags;
2111 req->int3 = SvOK (count) ? SvIV (count) : -1;
2112#endif
1398 2113
2114 REQ_SEND;
2115}
2116
1399void 2117void
1400aio_nop (callback=&PL_sv_undef) 2118aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1401 SV * callback 2119 PPCODE:
2120{
2121 char *svptr = 0;
2122
2123 sv_clear_foreign (data);
2124
2125 if (length) /* known length, directly read into scalar */
2126 {
2127 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2128 svptr = sv_grow (data, length + 1);
2129 else if (SvCUR (data) < length)
2130 croak ("length outside of scalar, and cannot grow");
2131 else
2132 svptr = SvPVbyte_nolen (data);
2133 }
2134
2135 {
2136 dREQ;
2137
2138 req->type = EIO_SLURP;
2139 req_set_path1 (req, pathname);
2140 req->offs = offset;
2141 req->size = length;
2142 req->sv2 = SvREFCNT_inc (data);
2143 req->ptr2 = svptr;
2144
2145 if (!SvREADONLY (data))
2146 {
2147 SvREADONLY_on (data);
2148 req->flags |= FLAG_SV2_RO_OFF;
2149 }
2150
2151 REQ_SEND;
2152 }
2153}
2154
2155void
2156aio_busy (double delay, SV *callback = &PL_sv_undef)
1402 PPCODE: 2157 PPCODE:
1403{ 2158{
1404 dREQ; 2159 dREQ;
1405 2160
1406 req->type = REQ_NOP; 2161 req->type = EIO_BUSY;
2162 req->nv1 = delay < 0. ? 0. : delay;
1407 2163
1408 REQ_SEND; 2164 REQ_SEND;
1409} 2165}
1410 2166
2167void
2168aio_group (SV *callback = &PL_sv_undef)
2169 PPCODE:
2170{
2171 dREQ;
2172
2173 req->type = EIO_GROUP;
2174
2175 PUTBACK;
2176 req_submit (req);
2177 SPAGAIN;
2178
2179 XPUSHs (req_sv (req, aio_grp_stash));
2180}
2181
2182void
2183aio_nop (SV *callback = &PL_sv_undef)
2184 ALIAS:
2185 aio_nop = EIO_NOP
2186 aio_sync = EIO_SYNC
2187 PPCODE:
2188{
2189 dREQ;
2190
2191 req->type = ix;
2192
2193 REQ_SEND;
2194}
2195
1411int 2196int
1412aioreq_pri (int pri = 0) 2197aioreq_pri (int pri = NO_INIT)
1413 PROTOTYPE: ;$
1414 CODE: 2198 CODE:
1415 RETVAL = next_pri - PRI_BIAS; 2199 RETVAL = next_pri;
1416 if (items > 0) 2200 if (items > 0)
1417 { 2201 {
1418 if (pri < PRI_MIN) pri = PRI_MIN; 2202 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1419 if (pri > PRI_MAX) pri = PRI_MAX; 2203 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1420 next_pri = pri + PRI_BIAS; 2204 next_pri = pri;
1421 } 2205 }
1422 OUTPUT: 2206 OUTPUT:
1423 RETVAL 2207 RETVAL
1424 2208
1425void 2209void
1426aioreq_nice (int nice = 0) 2210aioreq_nice (int nice = 0)
1427 CODE: 2211 CODE:
1428 nice = next_pri - nice; 2212 nice = next_pri - nice;
1429 if (nice < PRI_MIN) nice = PRI_MIN; 2213 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1430 if (nice > PRI_MAX) nice = PRI_MAX; 2214 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1431 next_pri = nice + PRI_BIAS; 2215 next_pri = nice;
1432 2216
1433void 2217void
1434flush () 2218flush ()
2219 CODE:
2220 while (eio_nreqs ())
2221 {
2222 poll_wait ();
2223 poll_cb ();
2224 }
2225
2226int
2227poll ()
2228 CODE:
2229 poll_wait ();
2230 RETVAL = poll_cb ();
2231 OUTPUT:
2232 RETVAL
2233
2234int
2235poll_fileno ()
2236 CODE:
2237 RETVAL = s_epipe_fd (&respipe);
2238 OUTPUT:
2239 RETVAL
2240
2241int
2242poll_cb (...)
1435 PROTOTYPE: 2243 PROTOTYPE:
1436 CODE: 2244 CODE:
1437 while (nreqs) 2245 RETVAL = poll_cb ();
2246 OUTPUT:
2247 RETVAL
2248
2249void
2250poll_wait ()
2251 CODE:
2252 poll_wait ();
2253
2254int
2255nreqs ()
2256 CODE:
2257 RETVAL = eio_nreqs ();
2258 OUTPUT:
2259 RETVAL
2260
2261int
2262nready ()
2263 CODE:
2264 RETVAL = eio_nready ();
2265 OUTPUT:
2266 RETVAL
2267
2268int
2269npending ()
2270 CODE:
2271 RETVAL = eio_npending ();
2272 OUTPUT:
2273 RETVAL
2274
2275int
2276nthreads ()
2277 CODE:
2278 RETVAL = eio_nthreads ();
2279 OUTPUT:
2280 RETVAL
2281
2282int
2283fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2284 CODE:
2285 RETVAL = posix_fadvise (fh, offset, length, advice);
2286 OUTPUT:
2287 RETVAL
2288
2289IV
2290sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2291 CODE:
2292 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2293 OUTPUT:
2294 RETVAL
2295
2296void
2297mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2298 PPCODE:
2299 sv_clear_foreign (scalar);
2300{
2301 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2302 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2303 if (addr == (void *)-1)
2304 XSRETURN_NO;
2305
2306 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2307
2308 if (!(prot & PROT_WRITE))
2309 SvREADONLY_on (scalar);
2310
2311 XSRETURN_YES;
2312}
2313
2314void
2315munmap (SV *scalar)
2316 CODE:
2317 sv_clear_foreign (scalar);
2318
2319SV *
2320mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2321 CODE:
2322{
2323 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2324 void *new;
2325
2326 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2327 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2328
2329 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2330
2331 RETVAL = &PL_sv_no;
2332
2333 if (new != (void *)-1)
1438 { 2334 {
1439 poll_wait (); 2335 RETVAL = new == (void *)mg->mg_ptr
1440 poll_cb (0); 2336 ? newSVpvn ("0 but true", 10)
2337 : &PL_sv_yes;
2338
2339 mg->mg_ptr = (char *)new;
2340 mg->mg_obj = (SV *)new_length;
2341
2342 SvPVX (scalar) = mg->mg_ptr;
2343 SvCUR_set (scalar, new_length);
1441 } 2344 }
2345}
2346 OUTPUT:
2347 RETVAL
1442 2348
1443void 2349int
1444poll() 2350madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2351 ALIAS:
2352 mprotect = 1
2353 CODE:
2354{
2355 STRLEN svlen;
2356 void *addr = SvPVbyte (scalar, svlen);
2357 STRLEN len = SvUV (length);
2358
2359 if (offset < 0)
2360 offset += svlen;
2361
2362 if (offset < 0 || offset > svlen)
2363 croak ("offset outside of scalar");
2364
2365 if (!SvOK (length) || len + offset > svlen)
2366 len = svlen - offset;
2367
2368 addr = (void *)(((intptr_t)addr) + offset);
2369 eio_page_align (&addr, &len);
2370
2371 switch (ix)
2372 {
2373 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2374 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2375 }
2376}
2377 OUTPUT:
2378 RETVAL
2379
2380int
2381munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2382 CODE:
2383{
2384 STRLEN svlen;
2385 void *addr = SvPVbyte (scalar, svlen);
2386 size_t len = SvUV (length);
2387
2388 if (offset < 0)
2389 offset += svlen;
2390
2391 if (offset < 0 || offset > svlen)
2392 croak ("offset outside of scalar");
2393
2394 if (!SvOK (length) || len + offset > svlen)
2395 len = svlen - offset;
2396
2397 addr = (void *)(((intptr_t)addr) + offset);
2398 eio_page_align (&addr, &len);
2399#if _POSIX_MEMLOCK_RANGE
2400 RETVAL = munlock (addr, len);
2401#else
2402 RETVAL = EIO_ENOSYS ();
2403#endif
2404}
2405 OUTPUT:
2406 RETVAL
2407
2408int
2409mlockall (int flags)
2410 PROTOTYPE: $;
2411 CODE:
2412 RETVAL = eio_mlockall_sync (flags);
2413 OUTPUT:
2414 RETVAL
2415
2416int
2417munlockall ()
2418 CODE:
2419#if _POSIX_MEMLOCK
2420 munlockall ();
2421#else
2422 RETVAL = EIO_ENOSYS ();
2423#endif
2424 OUTPUT:
2425 RETVAL
2426
2427int
2428statx (SV8 *pathname, int flags, UV mask)
2429 CODE:
2430{
2431 /* undocumented, and might go away, and anyway, should use eio_statx */
2432 SV *wdsv = 0;
2433 SV *pathsv = 0;
2434 eio_wd wd = EIO_CWD;
2435 void *ptr;
2436 int res;
2437
2438 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2439 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2440
2441 SvREFCNT_dec (pathsv);
2442 SvREFCNT_dec (wdsv);
2443}
2444 OUTPUT:
2445 RETVAL
2446
2447U32
2448stx_mode ()
1445 PROTOTYPE: 2449 PROTOTYPE:
1446 CODE: 2450 CODE:
2451#if HAVE_STATX
2452 RETVAL = stx.stx_mode;
2453#else
2454 XSRETURN_UNDEF;
2455#endif
2456 OUTPUT:
2457 RETVAL
2458
2459#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2460#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2461#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2462#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2463#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2464#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2465#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2466#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2467#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2468#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2469#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2470#define STATX_OFFSET_size statx_offsetof (stx_size)
2471#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2472#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2473#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2474#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2475#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2476#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2477
2478U32
2479stx_mask ()
2480 PROTOTYPE:
2481 ALIAS:
2482 stx_mask = STATX_OFFSET_mask
2483 stx_blksize = STATX_OFFSET_blksize
2484 stx_nlink = STATX_OFFSET_nlink
2485 stx_uid = STATX_OFFSET_uid
2486 stx_gid = STATX_OFFSET_gid
2487 stx_rdev_major = STATX_OFFSET_rdev_major
2488 stx_rdev_minor = STATX_OFFSET_rdev_minor
2489 stx_dev_major = STATX_OFFSET_dev_major
2490 stx_dev_minor = STATX_OFFSET_dev_minor
2491 CODE:
2492#if HAVE_STATX
2493 RETVAL = *(__u32 *)((char *)&stx + ix);
2494#else
2495 XSRETURN_UNDEF;
2496#endif
2497 OUTPUT:
2498 RETVAL
2499
2500VAL64
2501stx_attributes ()
2502 PROTOTYPE:
2503 ALIAS:
2504 stx_attributes = STATX_OFFSET_attributes
2505 stx_ino = STATX_OFFSET_ino
2506 stx_size = STATX_OFFSET_size
2507 stx_blocks = STATX_OFFSET_blocks
2508 stx_attributes_mask = STATX_OFFSET_attributes_mask
2509 CODE:
2510#if HAVE_STATX
2511 RETVAL = *(__u64 *)((char *)&stx + ix);
2512#else
2513 XSRETURN_UNDEF;
2514#endif
2515 OUTPUT:
2516 RETVAL
2517
2518NV
2519stx_atime ()
2520 PROTOTYPE:
2521 ALIAS:
2522 stx_atime = STATX_OFFSET_atime
2523 stx_btime = STATX_OFFSET_btime
2524 stx_ctime = STATX_OFFSET_ctime
2525 stx_mtime = STATX_OFFSET_mtime
2526 CODE:
2527#if HAVE_STATX
2528 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2529 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2530#else
2531 XSRETURN_UNDEF;
2532#endif
2533 OUTPUT:
2534 RETVAL
2535
2536VAL64
2537stx_atimesec ()
2538 PROTOTYPE:
2539 ALIAS:
2540 stx_atimesec = STATX_OFFSET_atime
2541 stx_btimesec = STATX_OFFSET_btime
2542 stx_ctimesec = STATX_OFFSET_ctime
2543 stx_mtimesec = STATX_OFFSET_mtime
2544 CODE:
2545#if HAVE_STATX
2546 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2547 RETVAL = ts->tv_sec;
2548#else
2549 XSRETURN_UNDEF;
2550#endif
2551 OUTPUT:
2552 RETVAL
2553
2554U32
2555stx_atimensec ()
2556 PROTOTYPE:
2557 ALIAS:
2558 stx_atimensec = STATX_OFFSET_atime
2559 stx_btimensec = STATX_OFFSET_btime
2560 stx_ctimensec = STATX_OFFSET_ctime
2561 stx_mtimensec = STATX_OFFSET_mtime
2562 CODE:
2563#if HAVE_STATX
2564 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2565 RETVAL = ts->tv_nsec;
2566#else
2567 RETVAL = 0;
2568#endif
2569 OUTPUT:
2570 RETVAL
2571
2572void
2573accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2574 PPCODE:
2575{
2576 SV *retval;
2577#if HAVE_ACCEPT4
2578 socklen_t salen_ = salen ? salen + 1 : 0;
2579
1447 if (nreqs) 2580 if (salen)
1448 { 2581 {
1449 poll_wait (); 2582 sv_upgrade (sockaddr, SVt_PV);
1450 poll_cb (0); 2583 sv_grow (sockaddr, salen_);
1451 } 2584 }
2585
2586 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2587
2588 retval = newmortalFH (res, O_RDWR);
2589
2590 if (res >= 0 && salen > 0)
2591 {
2592 if (salen_ > salen + 1)
2593 salen_ = salen + 1;
2594
2595 SvPOK_only (sockaddr);
2596 SvCUR_set (sockaddr, salen_);
2597 }
2598#else
2599 errno = ENOSYS;
2600 retval = &PL_sv_undef;
2601#endif
2602 XPUSHs (retval);
2603}
2604
2605ssize_t
2606splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2607 CODE:
2608{
2609#if HAVE_LINUX_SPLICE
2610 loff_t off_in_, off_out_;
2611 RETVAL = splice (
2612 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2613 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2614 length, flags
2615 );
2616#else
2617 RETVAL = EIO_ENOSYS ();
2618#endif
2619}
2620 OUTPUT:
2621 RETVAL
2622
2623ssize_t
2624tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2625 CODE:
2626#if HAVE_LINUX_SPLICE
2627 RETVAL = tee (rfh, wfh, length, flags);
2628#else
2629 RETVAL = EIO_ENOSYS ();
2630#endif
2631 OUTPUT:
2632 RETVAL
1452 2633
1453int 2634int
1454poll_fileno() 2635pipesize (aio_rfd rfh, int new_size = -1)
2636 PROTOTYPE: $;$
2637 CODE:
2638#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2639 if (new_size >= 0)
2640 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2641 else
2642 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2643#else
2644 errno = ENOSYS;
2645 RETVAL = -1;
2646#endif
2647 OUTPUT:
2648 RETVAL
2649
2650void
2651pipe2 (int flags = 0)
1455 PROTOTYPE: 2652 PROTOTYPE: ;$
2653 PPCODE:
2654{
2655 int fd[2];
2656 int res;
2657
2658 if (flags)
2659#if HAVE_PIPE2
2660 res = pipe2 (fd, flags);
2661#else
2662 res = (errno = ENOSYS, -1);
2663#endif
2664 else
2665 res = pipe (fd);
2666
2667 if (!res)
2668 {
2669 EXTEND (SP, 2);
2670 PUSHs (newmortalFH (fd[0], O_RDONLY));
2671 PUSHs (newmortalFH (fd[1], O_WRONLY));
2672 }
2673}
2674
2675void
2676pidfd_open (int pid, unsigned int flags = 0)
2677 PPCODE:
2678{
2679 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2680 int fd = syscall (SYS_pidfd_open, pid, flags);
2681 XPUSHs (newmortalFH (fd, O_RDWR));
2682}
2683
2684int
2685pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 int res;
2689#if HAVE_SIGINFO_T
2690 siginfo_t si = { 0 };
2691
2692 if (SvOK (siginfo))
2693 {
2694 HV *hv;
2695 SV **svp;
2696
2697 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2698 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2699
2700 hv = (HV *)SvRV (siginfo);
2701
2702 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2705 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2706 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2707 }
2708
2709 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2710 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2711#else
2712 res = (errno = ENOSYS, -1);
2713#endif
2714
2715 XPUSHs (sv_2mortal (newSViv (res)));
2716}
2717
2718void
2719pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2720 PPCODE:
2721{
2722 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2723 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2724 XPUSHs (newmortalFH (fd, O_RDWR));
2725}
2726
2727void
2728eventfd (unsigned int initval = 0, int flags = 0)
2729 PPCODE:
2730{
2731 int fd;
2732#if HAVE_EVENTFD
2733 fd = eventfd (initval, flags);
2734#else
2735 fd = (errno = ENOSYS, -1);
2736#endif
2737
2738 XPUSHs (newmortalFH (fd, O_RDWR));
2739}
2740
2741void
2742timerfd_create (int clockid, int flags = 0)
2743 PPCODE:
2744{
2745 int fd;
2746#if HAVE_TIMERFD
2747 fd = timerfd_create (clockid, flags);
2748#else
2749 fd = (errno = ENOSYS, -1);
2750#endif
2751
2752 XPUSHs (newmortalFH (fd, O_RDWR));
2753}
2754
2755void
2756timerfd_settime (SV *fh, int flags, NV interval, NV value)
2757 PPCODE:
2758{
2759 int fd = s_fileno_croak (fh, 0);
2760#if HAVE_TIMERFD
2761 int res;
2762 struct itimerspec its, ots;
2763
2764 ts_set (&its.it_interval, interval);
2765 ts_set (&its.it_value , value);
2766 res = timerfd_settime (fd, flags, &its, &ots);
2767
2768 if (!res)
2769 {
2770 EXTEND (SP, 2);
2771 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2772 PUSHs (newSVnv (ts_get (&ots.it_value)));
2773 }
2774#else
2775 errno = ENOSYS;
2776#endif
2777}
2778
2779void
2780timerfd_gettime (SV *fh)
2781 PPCODE:
2782{
2783 int fd = s_fileno_croak (fh, 0);
2784#if HAVE_TIMERFD
2785 int res;
2786 struct itimerspec ots;
2787 res = timerfd_gettime (fd, &ots);
2788
2789 if (!res)
2790 {
2791 EXTEND (SP, 2);
2792 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2793 PUSHs (newSVnv (ts_get (&ots.it_value)));
2794 }
2795#else
2796 errno = ENOSYS;
2797#endif
2798}
2799
2800void
2801memfd_create (SV8 *pathname, int flags = 0)
2802 PPCODE:
2803{
2804 int fd;
2805#if HAVE_MEMFD_CREATE
2806 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2807#else
2808 fd = (errno = ENOSYS, -1);
2809#endif
2810
2811 XPUSHs (newmortalFH (fd, O_RDWR));
2812}
2813
2814UV
2815get_fdlimit ()
1456 CODE: 2816 CODE:
1457 RETVAL = respipe [0]; 2817#if HAVE_RLIMITS
2818 struct rlimit rl;
2819 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2820 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2821#endif
2822 XSRETURN_UNDEF;
1458 OUTPUT: 2823 OUTPUT:
1459 RETVAL 2824 RETVAL
1460 2825
1461int 2826void
1462poll_cb(...) 2827min_fdlimit (UV limit = 0x7fffffffU)
1463 PROTOTYPE:
1464 CODE: 2828 CODE:
1465 RETVAL = poll_cb (0); 2829{
1466 OUTPUT: 2830#if HAVE_RLIMITS
1467 RETVAL 2831 struct rlimit rl;
2832 rlim_t orig_rlim_max;
2833 UV bit;
1468 2834
1469int 2835 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1470poll_some(int max = 0) 2836 goto fail;
1471 PROTOTYPE: $ 2837
2838 if (rl.rlim_cur == RLIM_INFINITY)
2839 XSRETURN_YES;
2840
2841 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2842
2843 if (rl.rlim_cur < limit)
2844 {
2845 rl.rlim_cur = limit;
2846
2847 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2848 rl.rlim_max = rl.rlim_cur;
2849 }
2850
2851 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2852 XSRETURN_YES;
2853
2854 if (errno == EPERM)
2855 {
2856 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2857 /* our limit overflows a system-wide limit */
2858 /* try an adaptive algorithm, but do not lower the hardlimit */
2859 rl.rlim_max = 0;
2860 for (bit = 0x40000000U; bit; bit >>= 1)
2861 {
2862 rl.rlim_max |= bit;
2863 rl.rlim_cur = rl.rlim_max;
2864
2865 /* never decrease the hard limit */
2866 if (rl.rlim_max < orig_rlim_max)
2867 break;
2868
2869 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2870 rl.rlim_max &= ~bit; /* too high, remove bit again */
2871 }
2872
2873 /* now, raise the soft limit to the max permitted */
2874 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2875 {
2876 rl.rlim_cur = rl.rlim_max;
2877 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2878 errno = EPERM;
2879 }
2880 }
2881#endif
2882 fail:
2883 XSRETURN_UNDEF;
2884}
2885
2886void _on_next_submit (SV *cb)
1472 CODE: 2887 CODE:
1473 RETVAL = poll_cb (max); 2888 SvREFCNT_dec (on_next_submit);
1474 OUTPUT: 2889 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1475 RETVAL
1476 2890
2891PROTOTYPES: DISABLE
2892
2893MODULE = IO::AIO PACKAGE = IO::AIO::WD
2894
2895BOOT:
2896{
2897 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2898 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2899}
2900
1477void 2901void
1478poll_wait() 2902DESTROY (SV *self)
1479 PROTOTYPE:
1480 CODE: 2903 CODE:
1481 if (nreqs) 2904{
1482 poll_wait (); 2905 aio_wd wd = SvAIO_WD (self);
1483 2906#if HAVE_AT
1484int 2907 {
1485nreqs() 2908 SV *callback = &PL_sv_undef;
1486 PROTOTYPE: 2909 dREQ; /* clobbers next_pri :/ */
1487 CODE: 2910 next_pri = req->pri; /* restore next_pri */
1488 RETVAL = nreqs; 2911 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1489 OUTPUT: 2912 req->type = EIO_WD_CLOSE;
1490 RETVAL 2913 req->wd = wd;
1491 2914 REQ_SEND;
1492int 2915 }
1493nready() 2916#else
1494 PROTOTYPE: 2917 eio_wd_close_sync (wd);
1495 CODE: 2918#endif
1496 if (WORDREAD_UNSAFE) LOCK (reqlock); 2919}
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 2920
1514MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2921MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1515 2922
1516void 2923void
1517cancel (aio_req_ornot req) 2924cancel (aio_req_ornot req)
1518 CODE: 2925 CODE:
1519 req_cancel (req); 2926 eio_cancel (req);
1520 2927
1521void 2928void
1522cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2929cb (aio_req_ornot req, SV *callback = NO_INIT)
1523 CODE: 2930 PPCODE:
2931{
2932 if (GIMME_V != G_VOID)
2933 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2934
2935 if (items > 1)
2936 {
2937 SV *cb_cv = get_cb (callback);
2938
1524 SvREFCNT_dec (req->callback); 2939 SvREFCNT_dec (req->callback);
1525 req->callback = newSVsv (callback); 2940 req->callback = SvREFCNT_inc (cb_cv);
2941 }
2942}
1526 2943
1527MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2944MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1528 2945
1529void 2946void
1530add (aio_req grp, ...) 2947add (aio_req grp, ...)
1531 PPCODE: 2948 PPCODE:
1532{ 2949{
1533 int i; 2950 int i;
1534 aio_req req;
1535 2951
1536 if (grp->fd == 2) 2952 if (grp->int1 == 2)
1537 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2953 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1538 2954
1539 for (i = 1; i < items; ++i ) 2955 for (i = 1; i < items; ++i )
1540 { 2956 {
2957 aio_req req;
2958
1541 if (GIMME_V != G_VOID) 2959 if (GIMME_V != G_VOID)
1542 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2960 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1543 2961
1544 req = SvAIO_REQ (ST (i)); 2962 req = SvAIO_REQ (ST (i));
1545 2963
1546 if (req) 2964 if (req)
1547 { 2965 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 } 2966 }
1560} 2967}
1561 2968
1562void 2969void
1563cancel_subs (aio_req_ornot req) 2970cancel_subs (aio_req_ornot req)
… …
1572 AV *av; 2979 AV *av;
1573 2980
1574 grp->errorno = errno; 2981 grp->errorno = errno;
1575 2982
1576 av = newAV (); 2983 av = newAV ();
2984 av_extend (av, items - 1);
1577 2985
1578 for (i = 1; i < items; ++i ) 2986 for (i = 1; i < items; ++i )
1579 av_push (av, newSVsv (ST (i))); 2987 av_push (av, newSVsv (ST (i)));
1580 2988
1581 SvREFCNT_dec (grp->data); 2989 SvREFCNT_dec (grp->sv1);
1582 grp->data = (SV *)av; 2990 grp->sv1 = (SV *)av;
1583} 2991}
1584 2992
1585void 2993void
1586errno (aio_req grp, int errorno = errno) 2994errno (aio_req grp, int errorno = errno)
1587 CODE: 2995 CODE:
1588 grp->errorno = errorno; 2996 grp->errorno = errorno;
1589 2997
1590void 2998void
1591limit (aio_req grp, int limit) 2999limit (aio_req grp, int limit)
1592 CODE: 3000 CODE:
1593 grp->fd2 = limit; 3001 eio_grp_limit (grp, limit);
1594 aio_grp_feed (grp);
1595 3002
1596void 3003void
1597feed (aio_req grp, SV *callback=&PL_sv_undef) 3004feed (aio_req grp, SV *callback = &PL_sv_undef)
1598 CODE: 3005 CODE:
1599{ 3006{
1600 SvREFCNT_dec (grp->fh2); 3007 SvREFCNT_dec (grp->sv2);
1601 grp->fh2 = newSVsv (callback); 3008 grp->sv2 = newSVsv (callback);
3009 grp->feed = aio_grp_feed;
1602 3010
1603 if (grp->fd2 <= 0) 3011 if (grp->int2 <= 0)
1604 grp->fd2 = 2; 3012 grp->int2 = 2;
1605 3013
1606 aio_grp_feed (grp); 3014 eio_grp_limit (grp, grp->int2);
1607} 3015}
1608 3016

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