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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.67 by root, Tue Oct 24 03:17:39 2006 UTC vs.
Revision 1.252 by root, Sat Jan 6 02:11:10 2018 UTC

1#if __linux 1#include "libeio/xthread.h"
2# define _GNU_SOURCE
3#endif
4
5#define _REENTRANT 1
6 2
7#include <errno.h> 3#include <errno.h>
8 4
9#include "EXTERN.h" 5#include "EXTERN.h"
10#include "perl.h" 6#include "perl.h"
11#include "XSUB.h" 7#include "XSUB.h"
12 8
13#include "autoconf/config.h" 9#include "schmorp.h"
14
15#include <pthread.h>
16 10
17#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
18#include <errno.h> 13#include <errno.h>
19#include <sys/time.h>
20#include <sys/select.h>
21#include <sys/types.h> 14#include <sys/types.h>
22#include <sys/stat.h> 15#include <sys/stat.h>
23#include <limits.h> 16#include <limits.h>
24#include <unistd.h>
25#include <fcntl.h> 17#include <fcntl.h>
26#include <signal.h>
27#include <sched.h> 18#include <sched.h>
28 19
29#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
30# if __linux
31# include <sys/sendfile.h>
32# elif __freebsd
33# include <sys/socket.h>
34# include <sys/uio.h> 21# include <sys/mman.h>
35# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
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
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
36# include <sys/socket.h> 86 #include <sys/time.h>
37# elif __solaris /* not yet */
38# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_RLIMITS
112 #include <sys/time.h>
113 #include <sys/resource.h>
114#endif
115
116typedef SV SV8; /* byte-sv, used for argument-checking */
117typedef int aio_rfd; /* read file desriptor */
118typedef int aio_wfd; /* write file descriptor */
119
120static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
121
122#define EIO_REQ_MEMBERS \
123 SV *callback; \
124 SV *sv1, *sv2; \
125 SV *sv3, *sv4; \
126 STRLEN stroffset; \
127 SV *self;
128
129#define EIO_NO_WRAPPERS 1
130
131#include "libeio/eio.h"
132
133static int req_invoke (eio_req *req);
134#define EIO_FINISH(req) req_invoke (req)
135static void req_destroy (eio_req *grp);
136#define EIO_DESTROY(req) req_destroy (req)
137
138#include "libeio/eio.c"
139
140#if !HAVE_POSIX_FADVISE
141# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
142#endif
143
144#if !HAVE_POSIX_MADVISE
145# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef MAP_ANONYMOUS
149# ifdef MAP_ANON
150# define MAP_ANONYMOUS MAP_ANON
39# else 151# else
40# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 153# endif
42#endif 154#endif
43 155
44/* used for struct dirent, AIX doesn't provide it */ 156/* defines all sorts of constants to 0 unless they are already defined */
45#ifndef NAME_MAX 157/* also provides const_iv_ and const_niv_ macros for them */
46# define NAME_MAX 4096 158#include "def0.h"
47#endif
48 159
49#if __ia64 160#ifndef makedev
50# define STACKSIZE 65536 161# define makedev(maj,min) (((maj) << 8) | (min))
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
52# define STACKSIZE PTHREAD_STACK_MIN
53#else
54# define STACKSIZE 16384
55#endif 162#endif
163#ifndef major
164# define major(dev) ((dev) >> 8)
165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
56 169
57/* buffer size for various temporary buffers */ 170#if PAGESIZE <= 0
58#define AIO_BUFSIZE 65536 171# define PAGESIZE sysconf (_SC_PAGESIZE)
172#endif
59 173
60#define dBUF \ 174/*****************************************************************************/
61 char *aio_buf = malloc (AIO_BUFSIZE); \ 175
62 if (!aio_buf) \ 176#if !_POSIX_MAPPED_FILES
177# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
178# define munmap(addr,length) EIO_ENOSYS ()
179#endif
180
181#if !_POSIX_MEMORY_PROTECTION
182# define mprotect(addr,len,prot) EIO_ENOSYS ()
183#endif
184
185#define FOREIGN_MAGIC PERL_MAGIC_ext
186
187static int ecb_cold
188mmap_free (pTHX_ SV *sv, MAGIC *mg)
189{
190 int old_errno = errno;
191 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
192 errno = old_errno;
193
194 mg->mg_obj = 0; /* just in case */
195
196 SvREADONLY_off (sv);
197
198 if (SvPVX (sv) != mg->mg_ptr)
199 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
200
201 SvCUR_set (sv, 0);
202 SvPVX (sv) = 0;
203 SvOK_off (sv);
204
63 return -1; 205 return 0;
206}
64 207
65#define fBUF free (aio_buf) 208static MGVTBL mmap_vtbl = {
66 209 0, 0, 0, 0, mmap_free
67enum {
68 REQ_QUIT,
69 REQ_OPEN, REQ_CLOSE,
70 REQ_READ, REQ_WRITE, REQ_READAHEAD,
71 REQ_SENDFILE,
72 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
73 REQ_FSYNC, REQ_FDATASYNC,
74 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
75 REQ_READDIR,
76 REQ_LINK, REQ_SYMLINK,
77 REQ_GROUP, REQ_NOP,
78 REQ_SLEEP,
79}; 210};
80 211
81#define AIO_REQ_KLASS "IO::AIO::REQ" 212static int ecb_cold
82#define AIO_GRP_KLASS "IO::AIO::GRP" 213sysfree_free (pTHX_ SV *sv, MAGIC *mg)
83
84typedef struct aio_cb
85{ 214{
86 struct aio_cb *volatile next; 215 free (mg->mg_ptr);
216 mg->mg_obj = 0; /* just in case */
87 217
88 SV *data, *callback; 218 SvREADONLY_off (sv);
89 SV *fh, *fh2;
90 void *dataptr, *data2ptr;
91 Stat_t *statdata;
92 off_t offset;
93 size_t length;
94 ssize_t result;
95 219
96 STRLEN dataoffset; 220 if (SvPVX (sv) != mg->mg_ptr)
97 int type; 221 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
98 int fd, fd2;
99 int errorno;
100 mode_t mode; /* open */
101 222
102 unsigned char flags; 223 SvCUR_set (sv, 0);
103 unsigned char pri; 224 SvPVX (sv) = 0;
225 SvOK_off (sv);
104 226
105 SV *self; /* the perl counterpart of this request, if any */ 227 return 0;
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 228}
107} aio_cb;
108 229
109enum { 230static MGVTBL sysfree_vtbl = {
110 FLAG_CANCELLED = 0x01, 231 0, 0, 0, 0, sysfree_free
111}; 232};
112 233
113typedef aio_cb *aio_req; 234/*****************************************************************************/
114typedef aio_cb *aio_req_ornot;
115 235
116enum { 236/* helper: set scalar to foreign ptr with custom free */
117 PRI_MIN = -4, 237static void
118 PRI_MAX = 4, 238sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
239{
240 sv_force_normal (sv);
119 241
120 DEFAULT_PRI = 0, 242 /* we store the length in mg_obj, as namlen is I32 :/ */
121 PRI_BIAS = -PRI_MIN, 243 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
122 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 244 ->mg_obj = (SV *)length;
123};
124 245
125static int next_pri = DEFAULT_PRI + PRI_BIAS; 246 SvUPGRADE (sv, SVt_PV); /* nop... */
126 247
127static int started, wanted; 248 if (SvLEN (sv))
128static volatile int nreqs; 249 Safefree (SvPVX (sv));
129static int max_outstanding = 1<<30;
130static int respipe [2];
131 250
132#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 251 SvPVX (sv) = (char *)addr;
133# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 252 SvCUR_set (sv, length);
134#else 253 SvLEN_set (sv, 0);
135# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 254 SvPOK_only (sv);
136#endif 255}
137 256
138static pthread_mutex_t reslock = AIO_MUTEX_INIT; 257static void
139static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 258sv_clear_foreign (SV *sv)
140static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 259{
260 /* todo: iterate over magic and only free ours, but of course */
261 /* the perl5porters will call that (correct) behaviour buggy */
262 sv_unmagic (sv, FOREIGN_MAGIC);
263}
141 264
142/* 265/*****************************************************************************/
143 * a somewhat faster data structure might be nice, but 266
144 * with 8 priorities this actually needs <20 insns 267static void
145 * per shift, the most expensive operation. 268fiemap (eio_req *req)
269{
270 req->result = -1;
271
272#if HAVE_FIEMAP
273 /* assume some c99 */
274 struct fiemap *fiemap = 0;
275 size_t end_offset;
276 int count = req->int3;
277
278 req->flags |= EIO_FLAG_PTR1_FREE;
279
280 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
281 /* increase in 3.5kb steps */
282 if (count < 0)
283 count = 8;
284
285 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
286 errno = ENOMEM;
287 if (!fiemap)
288 return;
289
290 req->ptr1 = fiemap;
291
292 fiemap->fm_start = req->offs;
293 fiemap->fm_length = req->size;
294 fiemap->fm_flags = req->int2;
295 fiemap->fm_extent_count = count;
296
297 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
298 return;
299
300 if (req->int3 >= 0 /* not autosizing */
301 || !fiemap->fm_mapped_extents /* no more extents */
302 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
303 goto done;
304
305 /* else we have to loop -
306 * it would be tempting (actually I tried that first) to just query the
307 * number of extents needed, but linux often feels like not returning all
308 * extents, without telling us it left any out. this complicates
309 * this quite a bit.
146 */ 310 */
147typedef struct {
148 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
149 int size;
150} reqq;
151 311
152static reqq req_queue; 312 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
153static reqq res_queue;
154 313
155int reqq_push (reqq *q, aio_req req) 314 for (;;)
156{
157 int pri = req->pri;
158 req->next = 0;
159
160 if (q->qe[pri])
161 { 315 {
162 q->qe[pri]->next = req; 316 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
163 q->qe[pri] = req; 317 char scratch[3072];
164 } 318 struct fiemap *incmap = (struct fiemap *)scratch;
165 else
166 q->qe[pri] = q->qs[pri] = req;
167 319
168 return q->size++; 320 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
169} 321 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
322 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
323 incmap->fm_flags = fiemap->fm_flags;
324 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
170 325
171aio_req reqq_shift (reqq *q) 326 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
172{
173 int pri;
174
175 if (!q->size)
176 return 0; 327 return;
177 328
178 --q->size; 329 if (!incmap->fm_mapped_extents)
330 goto done;
179 331
180 for (pri = NUM_PRI; pri--; ) 332 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
181 { 333 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
182 aio_req req = q->qs[pri]; 334 errno = ENOMEM;
183
184 if (req) 335 if (!fiemap)
336 return;
337
338 req->ptr1 = fiemap;
339
340 for (count = 0; count < incmap->fm_mapped_extents; ++count)
185 { 341 {
186 if (!(q->qs[pri] = req->next)) 342 struct fiemap_extent *e = incmap->fm_extents + count;
187 q->qe[pri] = 0;
188 343
189 return req; 344 if (e->fe_logical + e->fe_length >= end_offset)
345 goto done;
346
347 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
348
349 if (e->fe_flags & FIEMAP_EXTENT_LAST)
350 goto done;
351
190 } 352 }
191 } 353 }
192 354
193 abort (); 355done:
194} 356 req->result = 0;
195 357
358#else
359 errno = ENOSYS;
360#endif
361}
362
363/*****************************************************************************/
364
365enum {
366 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
367};
368
369typedef eio_req *aio_req;
370typedef eio_req *aio_req_ornot;
371typedef eio_wd aio_wd;
372
373static SV *on_next_submit;
374static int next_pri = EIO_PRI_DEFAULT;
375static int max_outstanding;
376
377static s_epipe respipe;
378
379static void req_destroy (aio_req req);
196static void req_invoke (aio_req req); 380static void req_cancel (aio_req req);
197static void req_free (aio_req req); 381
382static void
383want_poll (void)
384{
385 /* write a dummy byte to the pipe so fh becomes ready */
386 s_epipe_signal (&respipe);
387}
388
389static void
390done_poll (void)
391{
392 /* read any signals sent by the worker threads */
393 s_epipe_drain (&respipe);
394}
198 395
199/* must be called at most once */ 396/* must be called at most once */
200static SV *req_sv (aio_req req, const char *klass) 397static SV *
398req_sv (aio_req req, HV *stash)
201{ 399{
202 if (!req->self) 400 if (!req->self)
203 { 401 {
204 req->self = (SV *)newHV (); 402 req->self = (SV *)newHV ();
205 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 403 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
206 } 404 }
207 405
208 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 406 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
209} 407}
210 408
211static aio_req SvAIO_REQ (SV *sv) 409static SV *
410newSVaio_wd (aio_wd wd)
411{
412 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
413}
414
415static aio_req
416SvAIO_REQ (SV *sv)
212{ 417{
213 MAGIC *mg; 418 MAGIC *mg;
214 419
215 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 420 if (!SvROK (sv)
421 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
422 || (SvSTASH (SvRV (sv)) != aio_grp_stash
423 && SvSTASH (SvRV (sv)) != aio_req_stash
424 && !sv_derived_from (sv, "IO::AIO::REQ")))
216 croak ("object of class " AIO_REQ_KLASS " expected"); 425 croak ("object of class IO::AIO::REQ expected");
217 426
218 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 427 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
219 428
220 return mg ? (aio_req)mg->mg_ptr : 0; 429 return mg ? (aio_req)mg->mg_ptr : 0;
221} 430}
222 431
432static aio_wd
433SvAIO_WD (SV *sv)
434{
435 if (!SvROK (sv)
436 || SvTYPE (SvRV (sv)) != SVt_PVMG
437 || SvSTASH (SvRV (sv)) != aio_wd_stash)
438 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
439
440 return (aio_wd)(long)SvIVX (SvRV (sv));
441}
442
443static SV *
444newmortalFH (int fd, int flags)
445{
446 if (fd < 0)
447 return &PL_sv_undef;
448
449 GV *gv = (GV *)sv_newmortal ();
450 char sym[64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
454 gv_init (gv, aio_stash, sym, symlen, 0);
455
456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 fd
462 );
463
464 return do_open (gv, sym, symlen, 0, 0, 0, 0)
465 ? (SV *)gv : &PL_sv_undef;
466}
467
468static void
223static void aio_grp_feed (aio_req grp) 469aio_grp_feed (aio_req grp)
224{ 470{
225 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 471 if (grp->sv2 && SvOK (grp->sv2))
226 { 472 {
227 int old_len = grp->length;
228
229 if (grp->fh2 && SvOK (grp->fh2))
230 {
231 dSP; 473 dSP;
232 474
233 ENTER; 475 ENTER;
234 SAVETMPS; 476 SAVETMPS;
235 PUSHMARK (SP); 477 PUSHMARK (SP);
236 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 478 XPUSHs (req_sv (grp, aio_grp_stash));
237 PUTBACK; 479 PUTBACK;
238 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 480 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
239 SPAGAIN; 481 SPAGAIN;
240 FREETMPS; 482 FREETMPS;
241 LEAVE; 483 LEAVE;
242 }
243
244 /* stop if no progress has been made */
245 if (old_len == grp->length)
246 {
247 SvREFCNT_dec (grp->fh2);
248 grp->fh2 = 0;
249 break;
250 }
251 } 484 }
252} 485}
253 486
254static void aio_grp_dec (aio_req grp) 487static void
488req_submit (eio_req *req)
255{ 489{
256 --grp->length; 490 eio_submit (req);
257 491
258 /* call feeder, if applicable */ 492 if (expect_false (on_next_submit))
259 aio_grp_feed (grp);
260
261 /* finish, if done */
262 if (!grp->length && grp->fd)
263 { 493 {
264 req_invoke (grp); 494 dSP;
265 req_free (grp); 495 SV *cb = sv_2mortal (on_next_submit);
496
497 on_next_submit = 0;
498
499 PUSHMARK (SP);
500 PUTBACK;
501 call_sv (cb, G_DISCARD | G_EVAL);
266 } 502 }
267} 503}
268 504
269static void poll_wait () 505static int
506req_invoke (eio_req *req)
270{ 507{
271 fd_set rfd; 508 if (req->flags & FLAG_SV2_RO_OFF)
509 SvREADONLY_off (req->sv2);
272 510
273 while (nreqs) 511 if (!EIO_CANCELLED (req) && req->callback)
274 { 512 {
275 int size;
276#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
277 pthread_mutex_lock (&reslock);
278#endif
279 size = res_queue.size;
280#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
281 pthread_mutex_unlock (&reslock);
282#endif
283
284 if (size)
285 return;
286
287 FD_ZERO(&rfd);
288 FD_SET(respipe [0], &rfd);
289
290 select (respipe [0] + 1, &rfd, 0, 0, 0);
291 }
292}
293
294static void req_invoke (aio_req req)
295{
296 dSP; 513 dSP;
297 514 static SV *sv_result_cache; /* caches the result integer SV */
298 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 515 SV *sv_result;
299 {
300 errno = req->errorno;
301 516
302 ENTER; 517 ENTER;
303 SAVETMPS; 518 SAVETMPS;
304 PUSHMARK (SP); 519 PUSHMARK (SP);
305 EXTEND (SP, 1); 520 EXTEND (SP, 1);
306 521
522 /* do not recreate the result IV from scratch each time */
523 if (expect_true (sv_result_cache))
524 {
525 sv_result = sv_result_cache; sv_result_cache = 0;
526 SvIV_set (sv_result, req->result);
527 SvIOK_only (sv_result);
528 }
529 else
530 {
531 sv_result = newSViv (req->result);
532 SvREADONLY_on (sv_result);
533 }
534
307 switch (req->type) 535 switch (req->type)
308 { 536 {
537 case EIO_WD_OPEN:
538 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
539 break;
540
309 case REQ_READDIR: 541 case EIO_READDIR:
310 { 542 {
311 SV *rv = &PL_sv_undef; 543 SV *rv = &PL_sv_undef;
312 544
313 if (req->result >= 0) 545 if (req->result >= 0)
314 { 546 {
547 int i;
315 char *buf = req->data2ptr; 548 char *names = (char *)req->ptr2;
549 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
316 AV *av = newAV (); 550 AV *av = newAV ();
317 551
318 while (req->result) 552 av_extend (av, req->result - 1);
553
554 for (i = 0; i < req->result; ++i)
319 { 555 {
556 if (req->int1 & EIO_READDIR_DENTS)
557 {
558 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
559
560 if (req->int1 & EIO_READDIR_CUSTOM2)
561 {
562 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
563 AV *avent = newAV ();
564
565 av_extend (avent, 2);
566
567 if (!sv_type [ent->type])
568 {
569 sv_type [ent->type] = newSViv (ent->type);
570 SvREADONLY_on (sv_type [ent->type]);
571 }
572
573 av_store (avent, 0, namesv);
574 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
575 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
576
577 av_store (av, i, newRV_noinc ((SV *)avent));
578 }
579 else
580 av_store (av, i, namesv);
581
582 ++ent;
583 }
584 else
585 {
320 SV *sv = newSVpv (buf, 0); 586 SV *name = newSVpv (names, 0);
321
322 av_push (av, sv); 587 av_store (av, i, name);
323 buf += SvCUR (sv) + 1; 588 names += SvCUR (name) + 1;
324 req->result--; 589 }
325 } 590 }
326 591
327 rv = sv_2mortal (newRV_noinc ((SV *)av)); 592 rv = sv_2mortal (newRV_noinc ((SV *)av));
328 } 593 }
329 594
330 PUSHs (rv); 595 PUSHs (rv);
596
597 if (req->int1 & EIO_READDIR_CUSTOM1)
598 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
331 } 599 }
332 break; 600 break;
333 601
334 case REQ_OPEN: 602 case EIO_OPEN:
603 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
604 break;
605
606 case EIO_STATVFS:
607 case EIO_FSTATVFS:
335 { 608 {
336 /* convert fd to fh */ 609 SV *rv = &PL_sv_undef;
337 SV *fh; 610
611#ifndef _WIN32
612 if (req->result >= 0)
613 {
614 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
615 HV *hv = newHV ();
616 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
617 * chooses to make it a struct.
618 */
619 unsigned long fsid = 0;
620 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
338 621
339 PUSHs (sv_2mortal (newSViv (req->result))); 622 rv = sv_2mortal (newRV_noinc ((SV *)hv));
340 PUTBACK;
341 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
342 SPAGAIN;
343 623
344 fh = SvREFCNT_inc (POPs); 624 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
625 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
626 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
627 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
628 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
629 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
630 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
631 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
632 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
633 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
634 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
635 }
636#endif
345 637
346 PUSHMARK (SP); 638 PUSHs (rv);
347 XPUSHs (sv_2mortal (fh));
348 } 639 }
640
349 break; 641 break;
350 642
351 case REQ_GROUP: 643 case EIO_GROUP:
352 req->fd = 2; /* mark group as finished */ 644 req->int1 = 2; /* mark group as finished */
353 645
354 if (req->data) 646 if (req->sv1)
355 { 647 {
356 int i; 648 int i;
357 AV *av = (AV *)req->data; 649 AV *av = (AV *)req->sv1;
358 650
359 EXTEND (SP, AvFILL (av) + 1); 651 EXTEND (SP, AvFILL (av) + 1);
360 for (i = 0; i <= AvFILL (av); ++i) 652 for (i = 0; i <= AvFILL (av); ++i)
361 PUSHs (*av_fetch (av, i, 0)); 653 PUSHs (*av_fetch (av, i, 0));
362 } 654 }
363 break; 655 break;
364 656
365 case REQ_NOP: 657 case EIO_NOP:
366 case REQ_SLEEP: 658 case EIO_BUSY:
367 break; 659 break;
368 660
661 case EIO_READLINK:
662 case EIO_REALPATH:
663 if (req->result > 0)
664 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
665 break;
666
667 case EIO_STAT:
668 case EIO_LSTAT:
669 case EIO_FSTAT:
670 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
671
672 if (!(PL_laststatval = req->result))
673 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
674 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
675
676 PUSHs (sv_result);
677 break;
678
679 case EIO_SEEK:
680 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
681 break;
682
683 case EIO_READ:
684 {
685 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
686 *SvEND (req->sv2) = 0;
687 SvPOK_only (req->sv2);
688 SvSETMAGIC (req->sv2);
689 PUSHs (sv_result);
690 }
691 break;
692
693 case EIO_SLURP:
694 {
695 if (req->result >= 0)
696 {
697 /* if length was originally not known, we steal the malloc'ed memory */
698 if (req->flags & EIO_FLAG_PTR2_FREE)
699 {
700 req->flags &= ~EIO_FLAG_PTR2_FREE;
701 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
702 }
703 else
704 {
705 SvCUR_set (req->sv2, req->result);
706 *SvEND (req->sv2) = 0;
707 SvPOK_only (req->sv2);
708 }
709
710 SvSETMAGIC (req->sv2);
711 }
712
713 PUSHs (sv_result);
714 }
715 break;
716
717 case EIO_CUSTOM:
718 if (req->feed == fiemap)
719 {
720#if HAVE_FIEMAP
721 if (!req->result)
722 {
723 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
724
725 if (fiemap->fm_extent_count)
726 {
727 AV *av = newAV ();
728 int i;
729
730 while (fiemap->fm_mapped_extents)
731 {
732 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
733 AV *ext_av = newAV ();
734
735 av_store (ext_av, 3, newSVuv (extent->fe_flags));
736 av_store (ext_av, 2, newSVval64 (extent->fe_length));
737 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
738 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
739
740 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
741 }
742
743 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
744 }
745 else
746 {
747 SvIV_set (sv_result, fiemap->fm_mapped_extents);
748 PUSHs (sv_result);
749 }
750 }
751#endif
752 }
753 else
754 PUSHs (sv_result);
755 break;
756
757 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
758 if (req->result > 0)
759 SvIV_set (sv_result, 0);
760 /* FALLTHROUGH */
761
369 default: 762 default:
370 PUSHs (sv_2mortal (newSViv (req->result))); 763 PUSHs (sv_result);
371 break; 764 break;
372 } 765 }
373 766
767 errno = req->errorno;
374 768
375 PUTBACK; 769 PUTBACK;
376 call_sv (req->callback, G_VOID | G_EVAL); 770 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
377 SPAGAIN; 771 SPAGAIN;
772
773 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
774 SvREFCNT_dec (sv_result);
775 else
776 sv_result_cache = sv_result;
378 777
379 FREETMPS; 778 FREETMPS;
380 LEAVE; 779 LEAVE;
780
781 PUTBACK;
381 } 782 }
382 783
383 if (req->grp) 784 return !!SvTRUE (ERRSV);
384 {
385 aio_req grp = req->grp;
386
387 /* unlink request */
388 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
389 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
390
391 if (grp->grp_first == req)
392 grp->grp_first = req->grp_next;
393
394 aio_grp_dec (grp);
395 }
396
397 if (SvTRUE (ERRSV))
398 {
399 req_free (req);
400 croak (0);
401 }
402} 785}
403 786
404static void req_free (aio_req req) 787static void
788req_destroy (aio_req req)
405{ 789{
406 if (req->self) 790 if (req->self)
407 { 791 {
408 sv_unmagic (req->self, PERL_MAGIC_ext); 792 sv_unmagic (req->self, PERL_MAGIC_ext);
409 SvREFCNT_dec (req->self); 793 SvREFCNT_dec (req->self);
410 } 794 }
411 795
412 SvREFCNT_dec (req->data);
413 SvREFCNT_dec (req->fh); 796 SvREFCNT_dec (req->sv1);
414 SvREFCNT_dec (req->fh2); 797 SvREFCNT_dec (req->sv2);
798 SvREFCNT_dec (req->sv3);
799 SvREFCNT_dec (req->sv4);
415 SvREFCNT_dec (req->callback); 800 SvREFCNT_dec (req->callback);
416 Safefree (req->statdata);
417 801
418 if (req->type == REQ_READDIR && req->result >= 0)
419 free (req->data2ptr);
420
421 Safefree (req); 802 free (req);
422} 803}
423 804
424static void req_cancel (aio_req req) 805static void
806req_cancel_subs (aio_req grp)
425{ 807{
426 req->flags |= FLAG_CANCELLED;
427
428 if (req->type == REQ_GROUP) 808 if (grp->type != EIO_GROUP)
809 return;
810
811 SvREFCNT_dec (grp->sv2);
812 grp->sv2 = 0;
813
814 eio_grp_cancel (grp);
815}
816
817static void ecb_cold
818create_respipe (void)
819{
820 if (s_epipe_renew (&respipe))
821 croak ("IO::AIO: unable to initialize result pipe");
822}
823
824static void
825poll_wait (void)
826{
827 while (eio_nreqs ())
429 { 828 {
430 aio_req sub; 829 int size;
431 830
432 for (sub = req->grp_first; sub; sub = sub->grp_next) 831 X_LOCK (EIO_POOL->reslock);
433 req_cancel (sub); 832 size = EIO_POOL->res_queue.size;
833 X_UNLOCK (EIO_POOL->reslock);
834
835 if (size)
836 return;
837
838 etp_maybe_start_thread (EIO_POOL);
839
840 s_epipe_wait (&respipe);
434 } 841 }
435} 842}
436 843
437static int poll_cb () 844static int
845poll_cb (void)
438{ 846{
439 dSP;
440 int count = 0;
441 int do_croak = 0;
442 aio_req req;
443
444 for (;;) 847 for (;;)
445 { 848 {
446 pthread_mutex_lock (&reslock); 849 int res = eio_poll ();
447 req = reqq_shift (&res_queue);
448 850
449 if (req) 851 if (res > 0)
852 croak (0);
853
854 if (!max_outstanding || max_outstanding > eio_nreqs ())
855 return res;
856
857 poll_wait ();
858 }
859}
860
861static void ecb_cold
862reinit (void)
863{
864 create_respipe ();
865
866 if (eio_init (want_poll, done_poll) < 0)
867 croak ("IO::AIO: unable to initialise eio library");
868}
869
870/*****************************************************************************/
871
872static SV *
873get_cb (SV *cb_sv)
874{
875 SvGETMAGIC (cb_sv);
876 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
877}
878
879static aio_req ecb_noinline
880dreq (SV *callback)
881{
882 SV *cb_cv;
883 aio_req req;
884 int req_pri = next_pri;
885 next_pri = EIO_PRI_DEFAULT;
886
887 cb_cv = get_cb (callback);
888
889 req = calloc (sizeof (*req), 1);
890 if (!req)
891 croak ("out of memory during eio_req allocation");
892
893 req->callback = SvREFCNT_inc (cb_cv);
894 req->pri = req_pri;
895
896 return req;
897}
898
899#define dREQ \
900 aio_req req = dreq (callback); \
901
902#define REQ_SEND \
903 PUTBACK; \
904 req_submit (req); \
905 SPAGAIN; \
906 \
907 if (GIMME_V != G_VOID) \
908 XPUSHs (req_sv (req, aio_req_stash));
909
910ecb_inline void
911req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
912{
913 if (expect_false (SvROK (path)))
914 {
915 SV *rv = SvRV (path);
916 SV *wdob;
917
918 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
450 { 919 {
451 if (!res_queue.size) 920 path = AvARRAY (rv)[1];
921 wdob = AvARRAY (rv)[0];
922
923 if (SvOK (wdob))
452 { 924 {
453 /* read any signals sent by the worker threads */ 925 *wd = SvAIO_WD (wdob);
454 char buf [32]; 926 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
455 while (read (respipe [0], buf, 32) == 32)
456 ;
457 } 927 }
928 else
929 *wd = EIO_INVALID_WD;
458 } 930 }
459 931 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
460 pthread_mutex_unlock (&reslock);
461
462 if (!req)
463 break;
464
465 --nreqs;
466
467 if (req->type == REQ_QUIT)
468 started--;
469 else if (req->type == REQ_GROUP && req->length)
470 { 932 {
471 req->fd = 1; /* mark request as delayed */ 933 *wd = (aio_wd)(long)SvIVX (rv);
472 continue; 934 *wdsv = SvREFCNT_inc_NN (rv);
935 *ptr = ".";
936 return; /* path set to "." */
473 } 937 }
474 else 938 else
475 { 939 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
476 if (req->type == REQ_READ)
477 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
478
479 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
480 SvREADONLY_off (req->data);
481
482 if (req->statdata)
483 {
484 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
485 PL_laststatval = req->result;
486 PL_statcache = *(req->statdata);
487 }
488
489 req_invoke (req);
490
491 count++;
492 }
493
494 req_free (req);
495 } 940 }
496 941
497 return count; 942 *pathsv = newSVsv (path);
943 *ptr = SvPVbyte_nolen (*pathsv);
498} 944}
499 945
500static void *aio_proc(void *arg); 946static void ecb_noinline
501 947req_set_path1 (aio_req req, SV *path)
502static void start_thread (void)
503{ 948{
504 sigset_t fullsigset, oldsigset; 949 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
505 pthread_t tid;
506 pthread_attr_t attr;
507
508 pthread_attr_init (&attr);
509 pthread_attr_setstacksize (&attr, STACKSIZE);
510 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
511
512 sigfillset (&fullsigset);
513 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
514
515 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
516 started++;
517
518 sigprocmask (SIG_SETMASK, &oldsigset, 0);
519} 950}
520 951
521static void req_send (aio_req req) 952static void ecb_noinline
953req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
522{ 954{
523 while (started < wanted && nreqs >= started) 955 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
524 start_thread ();
525 956
526 ++nreqs; 957 switch (SvTYPE (rv))
527
528 pthread_mutex_lock (&reqlock);
529 reqq_push (&req_queue, req);
530 pthread_cond_signal (&reqwait);
531 pthread_mutex_unlock (&reqlock);
532
533 if (nreqs > max_outstanding)
534 for (;;)
535 {
536 poll_cb ();
537
538 if (nreqs <= max_outstanding)
539 break;
540
541 poll_wait ();
542 }
543}
544
545static void end_thread (void)
546{
547 aio_req req;
548
549 Newz (0, req, 1, aio_cb);
550
551 req->type = REQ_QUIT;
552 req->pri = PRI_MAX + PRI_BIAS;
553
554 req_send (req);
555}
556
557static void min_parallel (int nthreads)
558{
559 if (wanted < nthreads)
560 wanted = nthreads;
561}
562
563static void max_parallel (int nthreads)
564{
565 int cur = started;
566
567 if (wanted > nthreads)
568 wanted = nthreads;
569
570 while (cur > wanted)
571 { 958 {
572 end_thread (); 959 case SVt_PVIO:
573 cur--; 960 case SVt_PVLV:
961 case SVt_PVGV:
962 req->type = type_fh;
963 req->sv1 = newSVsv (fh_or_path);
964 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
965 break;
966
967 default:
968 req->type = type_path;
969 req_set_path1 (req, fh_or_path);
970 break;
574 } 971 }
575
576 while (started > wanted)
577 {
578 poll_wait ();
579 poll_cb ();
580 }
581} 972}
582 973
583static void create_pipe () 974XS(boot_IO__AIO) ecb_cold;
584{
585 if (pipe (respipe))
586 croak ("unable to initialize result pipe");
587 975
588 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 976MODULE = IO::AIO PACKAGE = IO::AIO
589 croak ("cannot set result pipe to nonblocking mode");
590 977
591 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 978PROTOTYPES: ENABLE
592 croak ("cannot set result pipe to nonblocking mode");
593}
594 979
595/*****************************************************************************/ 980BOOT:
596/* work around various missing functions */
597
598#if !HAVE_PREADWRITE
599# define pread aio_pread
600# define pwrite aio_pwrite
601
602/*
603 * make our pread/pwrite safe against themselves, but not against
604 * normal read/write by using a mutex. slows down execution a lot,
605 * but that's your problem, not mine.
606 */
607static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
608
609static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
610{ 981{
611 ssize_t res; 982 static const struct {
612 off_t ooffset; 983 const char *name;
984 IV iv;
985 } *civ, const_iv[] = {
986# define const_niv(name, value) { # name, (IV) value },
987# define const_iv(name) { # name, (IV) name },
988# define const_eio(name) { # name, (IV) EIO_ ## name },
613 989
614 pthread_mutex_lock (&preadwritelock); 990 /* you have to re-run ./gendef0 after adding/removing any constants here */
615 ooffset = lseek (fd, 0, SEEK_CUR); 991 /* the first block can be undef if missing */
616 lseek (fd, offset, SEEK_SET); 992 const_iv (ENOSYS)
617 res = read (fd, buf, count); 993 const_iv (EXDEV)
618 lseek (fd, ooffset, SEEK_SET); 994 const_iv (EBADR)
619 pthread_mutex_unlock (&preadwritelock);
620 995
621 return res; 996 /* for lseek */
622} 997 const_iv (SEEK_DATA)
998 const_iv (SEEK_HOLE)
623 999
624static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1000 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
625{ 1001 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
626 ssize_t res; 1002 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
627 off_t ooffset; 1003 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1004 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1005 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
628 1006
629 pthread_mutex_lock (&preadwritelock); 1007 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
630 ooffset = lseek (fd, 0, SEEK_CUR); 1008 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
631 lseek (fd, offset, SEEK_SET); 1009 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
632 res = write (fd, buf, count); 1010 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
633 lseek (fd, offset, SEEK_SET); 1011 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
634 pthread_mutex_unlock (&preadwritelock);
635 1012
636 return res; 1013 /* the second block will be 0 when missing */
637} 1014 const_iv (O_RDONLY)
638#endif 1015 const_iv (O_WRONLY)
1016 const_iv (O_RDWR)
1017 const_iv (O_CREAT)
1018 const_iv (O_TRUNC)
1019 const_iv (O_EXCL)
1020 const_iv (O_APPEND)
639 1021
640#if !HAVE_FDATASYNC 1022 const_iv (O_ASYNC)
641# define fdatasync fsync 1023 const_iv (O_DIRECT)
642#endif 1024 const_iv (O_NOATIME)
643 1025
644#if !HAVE_READAHEAD 1026 const_iv (O_CLOEXEC)
645# define readahead aio_readahead 1027 const_iv (O_NOCTTY)
1028 const_iv (O_NOFOLLOW)
1029 const_iv (O_NONBLOCK)
1030 const_iv (O_EXEC)
1031 const_iv (O_SEARCH)
1032 const_iv (O_DIRECTORY)
1033 const_iv (O_DSYNC)
1034 const_iv (O_RSYNC)
1035 const_iv (O_SYNC)
1036 const_iv (O_PATH)
1037 const_iv (O_TMPFILE)
1038 const_iv (O_TTY_INIT)
646 1039
647static ssize_t readahead (int fd, off_t offset, size_t count) 1040 const_iv (S_IFIFO)
648{ 1041 const_iv (S_IFCHR)
649 dBUF; 1042 const_iv (S_IFBLK)
1043 const_iv (S_IFLNK)
1044 const_iv (S_IFREG)
1045 const_iv (S_IFDIR)
1046 const_iv (S_IFWHT)
1047 const_iv (S_IFSOCK)
1048 const_iv (S_IFMT)
650 1049
651 while (count > 0) 1050 const_iv (ST_RDONLY)
652 { 1051 const_iv (ST_NOSUID)
653 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1052 const_iv (ST_NODEV)
1053 const_iv (ST_NOEXEC)
1054 const_iv (ST_SYNCHRONOUS)
1055 const_iv (ST_MANDLOCK)
1056 const_iv (ST_WRITE)
1057 const_iv (ST_APPEND)
1058 const_iv (ST_IMMUTABLE)
1059 const_iv (ST_NOATIME)
1060 const_iv (ST_NODIRATIME)
1061 const_iv (ST_RELATIME)
654 1062
655 pread (fd, aio_buf, len, offset); 1063 const_iv (PROT_NONE)
656 offset += len; 1064 const_iv (PROT_EXEC)
657 count -= len; 1065 const_iv (PROT_READ)
658 } 1066 const_iv (PROT_WRITE)
659 1067
660 fBUF; 1068 const_iv (MAP_PRIVATE)
1069 const_iv (MAP_SHARED)
1070 const_iv (MAP_FIXED)
1071 const_iv (MAP_ANONYMOUS)
661 1072
662 errno = 0; 1073 /* linuxish */
663} 1074 const_iv (MAP_LOCKED)
664#endif 1075 const_iv (MAP_NORESERVE)
1076 const_iv (MAP_POPULATE)
1077 const_iv (MAP_NONBLOCK)
1078 const_iv (MAP_GROWSDOWN)
1079 const_iv (MAP_32BIT)
1080 const_iv (MAP_HUGETLB)
1081 const_iv (MAP_STACK)
665 1082
666#if !HAVE_READDIR_R 1083 const_iv (F_DUPFD_CLOEXEC)
667# define readdir_r aio_readdir_r
668 1084
669static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1085 const_iv (F_OFD_GETLK)
670 1086 const_iv (F_OFD_SETLK)
671static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1087 const_iv (F_OFD_GETLKW)
672{
673 struct dirent *e;
674 int errorno;
675 1088
676 pthread_mutex_lock (&readdirlock); 1089 const_iv (FIFREEZE)
1090 const_iv (FITHAW)
1091 const_iv (FITRIM)
1092 const_iv (FICLONE)
1093 const_iv (FICLONERANGE)
1094 const_iv (FIDEDUPERANGE)
677 1095
678 e = readdir (dirp); 1096 const_iv (FS_IOC_GETFLAGS)
679 errorno = errno; 1097 const_iv (FS_IOC_SETFLAGS)
1098 const_iv (FS_IOC_GETVERSION)
1099 const_iv (FS_IOC_SETVERSION)
1100 const_iv (FS_IOC_FIEMAP)
1101 const_iv (FS_IOC_FSGETXATTR)
1102 const_iv (FS_IOC_FSSETXATTR)
1103 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1104 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1105 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
680 1106
681 if (e) 1107 const_iv (FS_KEY_DESCRIPTOR_SIZE)
682 {
683 *res = ent;
684 strcpy (ent->d_name, e->d_name);
685 }
686 else
687 *res = 0;
688 1108
689 pthread_mutex_unlock (&readdirlock); 1109 const_iv (FS_SECRM_FL)
1110 const_iv (FS_UNRM_FL)
1111 const_iv (FS_COMPR_FL)
1112 const_iv (FS_SYNC_FL)
1113 const_iv (FS_IMMUTABLE_FL)
1114 const_iv (FS_APPEND_FL)
1115 const_iv (FS_NODUMP_FL)
1116 const_iv (FS_NOATIME_FL)
1117 const_iv (FS_DIRTY_FL)
1118 const_iv (FS_COMPRBLK_FL)
1119 const_iv (FS_NOCOMP_FL)
1120 const_iv (FS_ENCRYPT_FL)
1121 const_iv (FS_BTREE_FL)
1122 const_iv (FS_INDEX_FL)
1123 const_iv (FS_JOURNAL_DATA_FL)
1124 const_iv (FS_NOTAIL_FL)
1125 const_iv (FS_DIRSYNC_FL)
1126 const_iv (FS_TOPDIR_FL)
1127 const_iv (FS_FL_USER_MODIFIABLE)
690 1128
691 errno = errorno; 1129 const_iv (FS_XFLAG_REALTIME)
692 return e ? 0 : -1; 1130 const_iv (FS_XFLAG_PREALLOC)
693} 1131 const_iv (FS_XFLAG_IMMUTABLE)
694#endif 1132 const_iv (FS_XFLAG_APPEND)
1133 const_iv (FS_XFLAG_SYNC)
1134 const_iv (FS_XFLAG_NOATIME)
1135 const_iv (FS_XFLAG_NODUMP)
1136 const_iv (FS_XFLAG_RTINHERIT)
1137 const_iv (FS_XFLAG_PROJINHERIT)
1138 const_iv (FS_XFLAG_NOSYMLINKS)
1139 const_iv (FS_XFLAG_EXTSIZE)
1140 const_iv (FS_XFLAG_EXTSZINHERIT)
1141 const_iv (FS_XFLAG_NODEFRAG)
1142 const_iv (FS_XFLAG_FILESTREAM)
1143 const_iv (FS_XFLAG_DAX)
1144 const_iv (FS_XFLAG_HASATTR)
695 1145
696/* sendfile always needs emulation */ 1146 const_iv (FIEMAP_FLAG_SYNC)
697static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1147 const_iv (FIEMAP_FLAG_XATTR)
698{ 1148 const_iv (FIEMAP_FLAGS_COMPAT)
699 ssize_t res; 1149 const_iv (FIEMAP_EXTENT_LAST)
1150 const_iv (FIEMAP_EXTENT_UNKNOWN)
1151 const_iv (FIEMAP_EXTENT_DELALLOC)
1152 const_iv (FIEMAP_EXTENT_ENCODED)
1153 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1154 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1155 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1156 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1157 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1158 const_iv (FIEMAP_EXTENT_MERGED)
1159 const_iv (FIEMAP_EXTENT_SHARED)
700 1160
701 if (!count) 1161 const_iv (SPLICE_F_MOVE)
702 return 0; 1162 const_iv (SPLICE_F_NONBLOCK)
1163 const_iv (SPLICE_F_MORE)
1164 const_iv (SPLICE_F_GIFT)
703 1165
704#if HAVE_SENDFILE 1166 /* these are libeio constants, and are independent of gendef0 */
705# if __linux 1167 const_eio (SEEK_SET)
706 res = sendfile (ofd, ifd, &offset, count); 1168 const_eio (SEEK_CUR)
1169 const_eio (SEEK_END)
707 1170
708# elif __freebsd 1171 const_eio (MCL_FUTURE)
709 /* 1172 const_eio (MCL_CURRENT)
710 * Of course, the freebsd sendfile is a dire hack with no thoughts
711 * wasted on making it similar to other I/O functions.
712 */
713 {
714 off_t sbytes;
715 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
716 1173
717 if (res < 0 && sbytes) 1174 const_eio (MS_ASYNC)
718 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1175 const_eio (MS_INVALIDATE)
719 res = sbytes; 1176 const_eio (MS_SYNC)
1177
1178 const_eio (MT_MODIFY)
1179
1180 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1181 const_eio (SYNC_FILE_RANGE_WRITE)
1182 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1183
1184 const_eio (FALLOC_FL_KEEP_SIZE)
1185 const_eio (FALLOC_FL_PUNCH_HOLE)
1186 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1187 const_eio (FALLOC_FL_ZERO_RANGE)
1188 const_eio (FALLOC_FL_INSERT_RANGE)
1189 const_eio (FALLOC_FL_UNSHARE_RANGE)
1190
1191 const_eio (RENAME_NOREPLACE)
1192 const_eio (RENAME_EXCHANGE)
1193 const_eio (RENAME_WHITEOUT)
1194
1195 const_eio (READDIR_DENTS)
1196 const_eio (READDIR_DIRS_FIRST)
1197 const_eio (READDIR_STAT_ORDER)
1198 const_eio (READDIR_FOUND_UNKNOWN)
1199
1200 const_eio (DT_UNKNOWN)
1201 const_eio (DT_FIFO)
1202 const_eio (DT_CHR)
1203 const_eio (DT_DIR)
1204 const_eio (DT_BLK)
1205 const_eio (DT_REG)
1206 const_eio (DT_LNK)
1207 const_eio (DT_SOCK)
1208 const_eio (DT_WHT)
720 } 1209 };
721 1210
722# elif __hpux 1211 aio_stash = gv_stashpv ("IO::AIO" , 1);
723 res = sendfile (ofd, ifd, offset, count, 0, 0); 1212 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1213 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1214 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
724 1215
725# elif __solaris 1216 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
726 { 1217 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
727 struct sendfilevec vec;
728 size_t sbytes;
729 1218
730 vec.sfv_fd = ifd; 1219 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
731 vec.sfv_flag = 0;
732 vec.sfv_off = offset;
733 vec.sfv_len = count;
734 1220
735 res = sendfilev (ofd, &vec, 1, &sbytes); 1221 reinit ();
1222}
736 1223
737 if (res < 0 && sbytes) 1224void
1225reinit ()
1226 PROTOTYPE:
1227
1228void
1229max_poll_reqs (unsigned int nreqs)
1230 PROTOTYPE: $
1231 CODE:
1232 eio_set_max_poll_reqs (nreqs);
1233
1234void
1235max_poll_time (double nseconds)
1236 PROTOTYPE: $
1237 CODE:
1238 eio_set_max_poll_time (nseconds);
1239
1240void
1241min_parallel (unsigned int nthreads)
1242 PROTOTYPE: $
1243 CODE:
1244 eio_set_min_parallel (nthreads);
1245
1246void
1247max_parallel (unsigned int nthreads)
1248 PROTOTYPE: $
1249 CODE:
1250 eio_set_max_parallel (nthreads);
1251
1252void
1253max_idle (unsigned int nthreads)
1254 PROTOTYPE: $
1255 CODE:
1256 eio_set_max_idle (nthreads);
1257
1258void
1259idle_timeout (unsigned int seconds)
1260 PROTOTYPE: $
1261 CODE:
1262 eio_set_idle_timeout (seconds);
1263
1264void
1265max_outstanding (unsigned int maxreqs)
1266 PROTOTYPE: $
1267 CODE:
1268 max_outstanding = maxreqs;
1269
1270void
1271aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1272 PPCODE:
1273{
1274 dREQ;
1275
1276 req->type = EIO_WD_OPEN;
1277 req_set_path1 (req, pathname);
1278
1279 REQ_SEND;
1280}
1281
1282void
1283aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1284 PPCODE:
1285{
1286 dREQ;
1287
1288 req->type = EIO_OPEN;
1289 req_set_path1 (req, pathname);
1290 req->int1 = flags;
1291 req->int2 = mode;
1292
1293 REQ_SEND;
1294}
1295
1296void
1297aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1298 ALIAS:
1299 aio_fsync = EIO_FSYNC
1300 aio_fdatasync = EIO_FDATASYNC
1301 aio_syncfs = EIO_SYNCFS
1302 PPCODE:
1303{
1304 int fd = s_fileno_croak (fh, 0);
1305 dREQ;
1306
1307 req->type = ix;
1308 req->sv1 = newSVsv (fh);
1309 req->int1 = fd;
1310
1311 REQ_SEND;
1312}
1313
1314void
1315aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1316 PPCODE:
1317{
1318 int fd = s_fileno_croak (fh, 0);
1319 dREQ;
1320
1321 req->type = EIO_SYNC_FILE_RANGE;
1322 req->sv1 = newSVsv (fh);
1323 req->int1 = fd;
1324 req->offs = offset;
738 res = sbytes; 1325 req->size = nbytes;
739 } 1326 req->int2 = flags;
740 1327
741# endif 1328 REQ_SEND;
1329}
1330
1331void
1332aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1333 PPCODE:
1334{
1335 int fd = s_fileno_croak (fh, 0);
1336 dREQ;
1337
1338 req->type = EIO_FALLOCATE;
1339 req->sv1 = newSVsv (fh);
1340 req->int1 = fd;
1341 req->int2 = mode;
1342 req->offs = offset;
1343 req->size = len;
1344
1345 REQ_SEND;
1346}
1347
1348void
1349aio_close (SV *fh, SV *callback = &PL_sv_undef)
1350 PPCODE:
1351{
1352 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1353 int fd = s_fileno_croak (fh, 0);
1354 dREQ;
1355
1356 if (expect_false (close_fd < 0))
1357 {
1358 int pipefd [2];
1359
1360 if (
1361#ifdef _WIN32
1362 _pipe (pipefd, 1, _O_BINARY) < 0
742#else 1363#else
743 res = -1; 1364 pipe (pipefd) < 0
744 errno = ENOSYS; 1365 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
745#endif 1366#endif
746 1367 || close (pipefd [1]) < 0
747 if (res < 0
748 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
749#if __solaris
750 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
751#endif
752 )
753 )
754 {
755 /* emulate sendfile. this is a major pain in the ass */
756 dBUF;
757
758 res = 0;
759
760 while (count)
761 {
762 ssize_t cnt;
763
764 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
765
766 if (cnt <= 0)
767 { 1368 )
768 if (cnt && !res) res = -1; 1369 abort (); /*D*/
769 break;
770 }
771 1370
772 cnt = write (ofd, aio_buf, cnt); 1371 close_fd = pipefd [0];
773
774 if (cnt <= 0)
775 {
776 if (cnt && !res) res = -1;
777 break;
778 }
779
780 offset += cnt;
781 res += cnt;
782 count -= cnt;
783 }
784
785 fBUF;
786 }
787
788 return res;
789}
790
791/* read a full directory */
792static int scandir_ (const char *path, void **namesp)
793{
794 DIR *dirp;
795 union
796 {
797 struct dirent d;
798 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
799 } *u;
800 struct dirent *entp;
801 char *name, *names;
802 int memlen = 4096;
803 int memofs = 0;
804 int res = 0;
805 int errorno;
806
807 dirp = opendir (path);
808 if (!dirp)
809 return -1;
810
811 u = malloc (sizeof (*u));
812 names = malloc (memlen);
813
814 if (u && names)
815 for (;;)
816 {
817 errno = 0;
818 readdir_r (dirp, &u->d, &entp);
819
820 if (!entp)
821 break;
822
823 name = entp->d_name;
824
825 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
826 {
827 int len = strlen (name) + 1;
828
829 res++;
830
831 while (memofs + len > memlen)
832 {
833 memlen *= 2;
834 names = realloc (names, memlen);
835 if (!names)
836 break;
837 }
838
839 memcpy (names + memofs, name, len);
840 memofs += len;
841 } 1372 }
842 }
843 1373
844 errorno = errno; 1374 req->type = EIO_DUP2;
845 free (u); 1375 req->int1 = close_fd;
846 closedir (dirp); 1376 req->sv2 = newSVsv (fh);
1377 req->int2 = fd;
847 1378
848 if (errorno) 1379 REQ_SEND;
849 {
850 free (names);
851 errno = errorno;
852 res = -1;
853 }
854
855 *namesp = (void *)names;
856 return res;
857} 1380}
858 1381
859/*****************************************************************************/
860
861static void *aio_proc (void *thr_arg)
862{
863 aio_req req;
864 int type;
865
866 do
867 {
868 pthread_mutex_lock (&reqlock);
869
870 for (;;)
871 {
872 req = reqq_shift (&req_queue);
873
874 if (req)
875 break;
876
877 pthread_cond_wait (&reqwait, &reqlock);
878 }
879
880 pthread_mutex_unlock (&reqlock);
881
882 errno = 0; /* strictly unnecessary */
883 type = req->type; /* remember type for QUIT check */
884
885 if (!(req->flags & FLAG_CANCELLED))
886 switch (type)
887 {
888 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
889 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
890
891 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
892 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
893
894 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
895 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
896 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
897
898 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
899 case REQ_CLOSE: req->result = close (req->fd); break;
900 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
901 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
902 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
903 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
904 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
905
906 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
907 case REQ_FSYNC: req->result = fsync (req->fd); break;
908 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
909
910 case REQ_SLEEP:
911 {
912 struct timeval tv;
913
914 tv.tv_sec = req->fd;
915 tv.tv_usec = req->fd2;
916
917 req->result = select (0, 0, 0, 0, &tv);
918 }
919
920 case REQ_GROUP:
921 case REQ_NOP:
922 case REQ_QUIT:
923 break;
924
925 default:
926 req->result = ENOSYS;
927 break;
928 }
929
930 req->errorno = errno;
931
932 pthread_mutex_lock (&reslock);
933
934 if (!reqq_push (&res_queue, req))
935 /* write a dummy byte to the pipe so fh becomes ready */
936 write (respipe [1], &respipe, 1);
937
938 pthread_mutex_unlock (&reslock);
939 }
940 while (type != REQ_QUIT);
941
942 return 0;
943}
944
945/*****************************************************************************/
946
947static void atfork_prepare (void)
948{
949 pthread_mutex_lock (&reqlock);
950 pthread_mutex_lock (&reslock);
951#if !HAVE_PREADWRITE
952 pthread_mutex_lock (&preadwritelock);
953#endif
954#if !HAVE_READDIR_R
955 pthread_mutex_lock (&readdirlock);
956#endif
957}
958
959static void atfork_parent (void)
960{
961#if !HAVE_READDIR_R
962 pthread_mutex_unlock (&readdirlock);
963#endif
964#if !HAVE_PREADWRITE
965 pthread_mutex_unlock (&preadwritelock);
966#endif
967 pthread_mutex_unlock (&reslock);
968 pthread_mutex_unlock (&reqlock);
969}
970
971static void atfork_child (void)
972{
973 aio_req prv;
974
975 started = 0;
976
977 while (prv = reqq_shift (&req_queue))
978 req_free (prv);
979
980 while (prv = reqq_shift (&res_queue))
981 req_free (prv);
982
983 close (respipe [0]);
984 close (respipe [1]);
985 create_pipe ();
986
987 atfork_parent ();
988}
989
990#define dREQ \
991 aio_req req; \
992 int req_pri = next_pri; \
993 next_pri = DEFAULT_PRI + PRI_BIAS; \
994 \
995 if (SvOK (callback) && !SvROK (callback)) \
996 croak ("callback must be undef or of reference type"); \
997 \
998 Newz (0, req, 1, aio_cb); \
999 if (!req) \
1000 croak ("out of memory during aio_req allocation"); \
1001 \
1002 req->callback = newSVsv (callback); \
1003 req->pri = req_pri
1004
1005#define REQ_SEND \
1006 req_send (req); \
1007 \
1008 if (GIMME_V != G_VOID) \
1009 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1010
1011MODULE = IO::AIO PACKAGE = IO::AIO
1012
1013PROTOTYPES: ENABLE
1014
1015BOOT:
1016{
1017 HV *stash = gv_stashpv ("IO::AIO", 1);
1018 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1019 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1020 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1021
1022 create_pipe ();
1023 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1024}
1025
1026void 1382void
1027min_parallel (nthreads) 1383aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1028 int nthreads
1029 PROTOTYPE: $
1030
1031void
1032max_parallel (nthreads)
1033 int nthreads
1034 PROTOTYPE: $
1035
1036int
1037max_outstanding (nreqs)
1038 int nreqs
1039 PROTOTYPE: $
1040 CODE: 1384 PPCODE:
1041 RETVAL = max_outstanding;
1042 max_outstanding = nreqs;
1043
1044void
1045aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1046 SV * pathname
1047 int flags
1048 int mode
1049 SV * callback
1050 PROTOTYPE: $$$;$
1051 PPCODE:
1052{ 1385{
1386 int fd = s_fileno_croak (fh, 0);
1053 dREQ; 1387 dREQ;
1054 1388
1055 req->type = REQ_OPEN; 1389 req->type = EIO_SEEK;
1056 req->data = newSVsv (pathname); 1390 req->sv1 = newSVsv (fh);
1057 req->dataptr = SvPVbyte_nolen (req->data); 1391 req->int1 = fd;
1058 req->fd = flags; 1392 req->offs = SvVAL64 (offset);
1059 req->mode = mode; 1393 req->int2 = whence;
1060 1394
1061 REQ_SEND; 1395 REQ_SEND;
1062} 1396}
1063 1397
1064void 1398void
1065aio_close (fh,callback=&PL_sv_undef) 1399aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1066 SV * fh
1067 SV * callback
1068 PROTOTYPE: $;$
1069 ALIAS: 1400 ALIAS:
1070 aio_close = REQ_CLOSE
1071 aio_fsync = REQ_FSYNC
1072 aio_fdatasync = REQ_FDATASYNC
1073 PPCODE:
1074{
1075 dREQ;
1076
1077 req->type = ix;
1078 req->fh = newSVsv (fh);
1079 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1080
1081 REQ_SEND (req);
1082}
1083
1084void
1085aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1086 SV * fh
1087 UV offset
1088 UV length
1089 SV * data
1090 UV dataoffset
1091 SV * callback
1092 ALIAS:
1093 aio_read = REQ_READ 1401 aio_read = EIO_READ
1094 aio_write = REQ_WRITE 1402 aio_write = EIO_WRITE
1095 PROTOTYPE: $$$$$;$
1096 PPCODE: 1403 PPCODE:
1097{ 1404{
1098 aio_req req;
1099 STRLEN svlen; 1405 STRLEN svlen;
1406 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1100 char *svptr = SvPVbyte (data, svlen); 1407 char *svptr = SvPVbyte (data, svlen);
1101 1408 UV len = SvUV (length);
1102 SvUPGRADE (data, SVt_PV);
1103 SvPOK_on (data);
1104 1409
1105 if (dataoffset < 0) 1410 if (dataoffset < 0)
1106 dataoffset += svlen; 1411 dataoffset += svlen;
1107 1412
1108 if (dataoffset < 0 || dataoffset > svlen) 1413 if (dataoffset < 0 || dataoffset > svlen)
1109 croak ("data offset outside of string"); 1414 croak ("dataoffset outside of data scalar");
1110 1415
1111 if (ix == REQ_WRITE) 1416 if (ix == EIO_WRITE)
1112 { 1417 {
1113 /* write: check length and adjust. */ 1418 /* write: check length and adjust. */
1114 if (length < 0 || length + dataoffset > svlen) 1419 if (!SvOK (length) || len + dataoffset > svlen)
1115 length = svlen - dataoffset; 1420 len = svlen - dataoffset;
1116 } 1421 }
1117 else 1422 else
1118 { 1423 {
1119 /* read: grow scalar as necessary */ 1424 /* read: check type and grow scalar as necessary */
1425 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1120 svptr = SvGROW (data, length + dataoffset); 1426 svptr = sv_grow (data, len + dataoffset + 1);
1427 else if (SvCUR (data) < len + dataoffset)
1428 croak ("length + dataoffset outside of scalar, and cannot grow");
1121 } 1429 }
1122
1123 if (length < 0)
1124 croak ("length must not be negative");
1125 1430
1126 { 1431 {
1127 dREQ; 1432 dREQ;
1128 1433
1129 req->type = ix; 1434 req->type = ix;
1130 req->fh = newSVsv (fh); 1435 req->sv1 = newSVsv (fh);
1131 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1436 req->int1 = fd;
1132 : IoOFP (sv_2io (fh))); 1437 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1133 req->offset = offset; 1438 req->size = len;
1134 req->length = length;
1135 req->data = SvREFCNT_inc (data); 1439 req->sv2 = SvREFCNT_inc (data);
1136 req->dataptr = (char *)svptr + dataoffset; 1440 req->ptr2 = (char *)svptr + dataoffset;
1441 req->stroffset = dataoffset;
1137 1442
1138 if (!SvREADONLY (data)) 1443 if (!SvREADONLY (data))
1139 { 1444 {
1140 SvREADONLY_on (data); 1445 SvREADONLY_on (data);
1141 req->data2ptr = (void *)data; 1446 req->flags |= FLAG_SV2_RO_OFF;
1142 } 1447 }
1143 1448
1144 REQ_SEND; 1449 REQ_SEND;
1145 } 1450 }
1146} 1451}
1147 1452
1148void 1453void
1149aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1454aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1150 SV * out_fh 1455 ALIAS:
1151 SV * in_fh 1456 aio_ioctl = EIO_IOCTL
1152 UV in_offset 1457 aio_fcntl = EIO_FCNTL
1153 UV length
1154 SV * callback
1155 PROTOTYPE: $$$$;$
1156 PPCODE: 1458 PPCODE:
1157{ 1459{
1158 dREQ; 1460 int fd = s_fileno_croak (fh, 0);
1461 char *svptr;
1159 1462
1160 req->type = REQ_SENDFILE; 1463 if (SvPOK (arg) || !SvNIOK (arg))
1161 req->fh = newSVsv (out_fh);
1162 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1163 req->fh2 = newSVsv (in_fh);
1164 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1165 req->offset = in_offset;
1166 req->length = length;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1173 SV * fh
1174 UV offset
1175 IV length
1176 SV * callback
1177 PROTOTYPE: $$$;$
1178 PPCODE:
1179{
1180 dREQ;
1181
1182 req->type = REQ_READAHEAD;
1183 req->fh = newSVsv (fh);
1184 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1185 req->offset = offset;
1186 req->length = length;
1187
1188 REQ_SEND;
1189}
1190
1191void
1192aio_stat (fh_or_path,callback=&PL_sv_undef)
1193 SV * fh_or_path
1194 SV * callback
1195 ALIAS:
1196 aio_stat = REQ_STAT
1197 aio_lstat = REQ_LSTAT
1198 PPCODE:
1199{
1200 dREQ;
1201
1202 New (0, req->statdata, 1, Stat_t);
1203 if (!req->statdata)
1204 { 1464 {
1205 req_free (req); 1465 STRLEN svlen;
1206 croak ("out of memory during aio_req->statdata allocation"); 1466 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1207 } 1467#ifdef IOCPARM_LEN
1468 STRLEN need = IOCPARM_LEN (request);
1469#else
1470 STRLEN need = 256;
1471#endif
1208 1472
1209 if (SvPOK (fh_or_path)) 1473 if (svlen < need)
1210 { 1474 svptr = SvGROW (arg, need);
1211 req->type = ix;
1212 req->data = newSVsv (fh_or_path);
1213 req->dataptr = SvPVbyte_nolen (req->data);
1214 } 1475 }
1215 else 1476 else
1477 svptr = (char *)SvIV (arg);
1478
1216 { 1479 {
1480 dREQ;
1481
1217 req->type = REQ_FSTAT; 1482 req->type = ix;
1218 req->fh = newSVsv (fh_or_path); 1483 req->sv1 = newSVsv (fh);
1219 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1484 req->int1 = fd;
1485 req->int2 = (long)request;
1486 req->sv2 = SvREFCNT_inc (arg);
1487 req->ptr2 = svptr;
1488
1489 REQ_SEND;
1220 } 1490 }
1491}
1492
1493void
1494aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1495 ALIAS:
1496 aio_readlink = EIO_READLINK
1497 aio_realpath = EIO_REALPATH
1498 PPCODE:
1499{
1500 dREQ;
1501
1502 req->type = ix;
1503 req_set_path1 (req, pathname);
1221 1504
1222 REQ_SEND; 1505 REQ_SEND;
1223} 1506}
1224 1507
1225void 1508void
1226aio_unlink (pathname,callback=&PL_sv_undef) 1509aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1227 SV * pathname 1510 PPCODE:
1228 SV * callback 1511{
1512 int ifd = s_fileno_croak (in_fh , 0);
1513 int ofd = s_fileno_croak (out_fh, 1);
1514 dREQ;
1515
1516 req->type = EIO_SENDFILE;
1517 req->sv1 = newSVsv (out_fh);
1518 req->int1 = ofd;
1519 req->sv2 = newSVsv (in_fh);
1520 req->int2 = ifd;
1521 req->offs = in_offset;
1522 req->size = length;
1523
1524 REQ_SEND;
1525}
1526
1527void
1528aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1529 PPCODE:
1530{
1531 int fd = s_fileno_croak (fh, 0);
1532 dREQ;
1533
1534 req->type = EIO_READAHEAD;
1535 req->sv1 = newSVsv (fh);
1536 req->int1 = fd;
1537 req->offs = offset;
1538 req->size = length;
1539
1540 REQ_SEND;
1541}
1542
1543void
1544aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1229 ALIAS: 1545 ALIAS:
1546 aio_stat = EIO_STAT
1547 aio_lstat = EIO_LSTAT
1548 aio_statvfs = EIO_STATVFS
1549 PPCODE:
1550{
1551 dREQ;
1552
1553 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1554
1555 REQ_SEND;
1556}
1557
1558UV
1559major (UV dev)
1560 ALIAS:
1561 minor = 1
1562 CODE:
1563 RETVAL = ix ? minor (dev) : major (dev);
1564 OUTPUT:
1565 RETVAL
1566
1567UV
1568makedev (UV maj, UV min)
1569 CODE:
1570 RETVAL = makedev (maj, min);
1571 OUTPUT:
1572 RETVAL
1573
1574void
1575aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1576 PPCODE:
1577{
1578 dREQ;
1579
1580 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1581 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1582 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1583
1584 REQ_SEND;
1585}
1586
1587void
1588aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1589 PPCODE:
1590{
1591 dREQ;
1592
1593 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1594 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1595
1596 REQ_SEND;
1597}
1598
1599void
1600aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1601 PPCODE:
1602{
1603 dREQ;
1604
1605 req->int2 = mode;
1606 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1607
1608 REQ_SEND;
1609}
1610
1611void
1612aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1613 PPCODE:
1614{
1615 dREQ;
1616
1617 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1618 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1619 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1620
1621 REQ_SEND;
1622}
1623
1624void
1625aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1626 PPCODE:
1627{
1628 dREQ;
1629
1630 req->type = EIO_READDIR;
1631 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1632
1633 if (flags & EIO_READDIR_DENTS)
1634 req->int1 |= EIO_READDIR_CUSTOM2;
1635
1636 req_set_path1 (req, pathname);
1637
1638 REQ_SEND;
1639}
1640
1641void
1642aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1643 PPCODE:
1644{
1645 dREQ;
1646
1647 req->type = EIO_MKDIR;
1648 req->int2 = mode;
1649 req_set_path1 (req, pathname);
1650
1651 REQ_SEND;
1652}
1653
1654void
1655aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1656 ALIAS:
1230 aio_unlink = REQ_UNLINK 1657 aio_unlink = EIO_UNLINK
1231 aio_rmdir = REQ_RMDIR 1658 aio_rmdir = EIO_RMDIR
1232 aio_readdir = REQ_READDIR 1659 aio_readdir = EIO_READDIR
1233 PPCODE: 1660 PPCODE:
1234{ 1661{
1235 dREQ; 1662 dREQ;
1236 1663
1237 req->type = ix; 1664 req->type = ix;
1238 req->data = newSVsv (pathname); 1665 req_set_path1 (req, pathname);
1239 req->dataptr = SvPVbyte_nolen (req->data); 1666
1240
1241 REQ_SEND; 1667 REQ_SEND;
1242} 1668}
1243 1669
1244void 1670void
1245aio_link (oldpath,newpath,callback=&PL_sv_undef) 1671aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1246 SV * oldpath
1247 SV * newpath
1248 SV * callback
1249 ALIAS: 1672 ALIAS:
1250 aio_link = REQ_LINK 1673 aio_link = EIO_LINK
1251 aio_symlink = REQ_SYMLINK 1674 aio_symlink = EIO_SYMLINK
1252 aio_rename = REQ_RENAME 1675 aio_rename = EIO_RENAME
1253 PPCODE: 1676 PPCODE:
1254{ 1677{
1678 eio_wd wd2 = 0;
1255 dREQ; 1679 dREQ;
1256 1680
1257 req->type = ix; 1681 req->type = ix;
1258 req->fh = newSVsv (oldpath); 1682 req_set_path1 (req, oldpath);
1259 req->data2ptr = SvPVbyte_nolen (req->fh); 1683 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1260 req->data = newSVsv (newpath); 1684 req->int3 = (long)wd2;
1261 req->dataptr = SvPVbyte_nolen (req->data);
1262 1685
1263 REQ_SEND; 1686 REQ_SEND;
1264} 1687}
1265 1688
1266void 1689void
1267aio_sleep (delay,callback=&PL_sv_undef) 1690aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1268 double delay
1269 SV * callback
1270 PPCODE: 1691 PPCODE:
1271{ 1692{
1693 eio_wd wd2 = 0;
1272 dREQ; 1694 dREQ;
1273 1695
1274 req->type = REQ_SLEEP; 1696 req->type = EIO_RENAME;
1275 req->fd = delay < 0. ? 0 : delay; 1697 req_set_path1 (req, oldpath);
1276 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1698 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1277 1699 req->int2 = flags;
1700 req->int3 = (long)wd2;
1701
1278 REQ_SEND; 1702 REQ_SEND;
1279} 1703}
1280 1704
1281void 1705void
1282aio_group (callback=&PL_sv_undef) 1706aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1283 SV * callback 1707 PPCODE:
1284 PROTOTYPE: ;$ 1708{
1709 dREQ;
1710
1711 req->type = EIO_MKNOD;
1712 req->int2 = (mode_t)mode;
1713 req->offs = dev;
1714 req_set_path1 (req, pathname);
1715
1716 REQ_SEND;
1717}
1718
1719void
1720aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1721 ALIAS:
1722 aio_mtouch = EIO_MTOUCH
1723 aio_msync = EIO_MSYNC
1285 PPCODE: 1724 PPCODE:
1286{ 1725{
1726 STRLEN svlen;
1727 char *svptr = SvPVbyte (data, svlen);
1728 UV len = SvUV (length);
1729
1730 if (flags < 0)
1731 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1732
1733 if (offset < 0)
1734 offset += svlen;
1735
1736 if (offset < 0 || offset > svlen)
1737 croak ("offset outside of scalar");
1738
1739 if (!SvOK (length) || len + offset > svlen)
1740 len = svlen - offset;
1741
1742 {
1743 dREQ;
1744
1745 req->type = ix;
1746 req->sv2 = SvREFCNT_inc (data);
1747 req->ptr2 = (char *)svptr + offset;
1748 req->size = len;
1749 req->int1 = flags;
1750
1751 REQ_SEND;
1752 }
1753}
1754
1755void
1756aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1757 PPCODE:
1758{
1759 STRLEN svlen;
1760 char *svptr = SvPVbyte (data, svlen);
1761 UV len = SvUV (length);
1762
1763 if (offset < 0)
1764 offset += svlen;
1765
1766 if (offset < 0 || offset > svlen)
1767 croak ("offset outside of scalar");
1768
1769 if (!SvOK (length) || len + offset > svlen)
1770 len = svlen - offset;
1771
1772 {
1773 dREQ;
1774
1775 req->type = EIO_MLOCK;
1776 req->sv2 = SvREFCNT_inc (data);
1777 req->ptr2 = (char *)svptr + offset;
1778 req->size = len;
1779
1780 REQ_SEND;
1781 }
1782}
1783
1784void
1785aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1786 PPCODE:
1787{
1788 dREQ;
1789
1790 req->type = EIO_MLOCKALL;
1791 req->int1 = flags;
1792
1793 REQ_SEND;
1794}
1795
1796void
1797aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1798 PPCODE:
1799{
1800 int fd = s_fileno_croak (fh, 0);
1287 dREQ; 1801 dREQ;
1288 1802
1289 req->type = REQ_GROUP; 1803 req->type = EIO_CUSTOM;
1290 req_send (req); 1804 req->sv1 = newSVsv (fh);
1805 req->int1 = fd;
1291 1806
1292 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1807 req->feed = fiemap;
1293} 1808#if HAVE_FIEMAP
1809 /* keep our fingers crossed that the next two types are 64 bit */
1810 req->offs = start;
1811 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1812 req->int2 = flags;
1813 req->int3 = SvOK (count) ? SvIV (count) : -1;
1814#endif
1294 1815
1816 REQ_SEND;
1817}
1818
1295void 1819void
1296aio_nop (callback=&PL_sv_undef) 1820aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1297 SV * callback 1821 PPCODE:
1822{
1823 char *svptr = 0;
1824
1825 sv_clear_foreign (data);
1826
1827 if (length) /* known length, directly read into scalar */
1828 {
1829 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1830 svptr = sv_grow (data, length + 1);
1831 else if (SvCUR (data) < length)
1832 croak ("length outside of scalar, and cannot grow");
1833 else
1834 svptr = SvPVbyte_nolen (data);
1835 }
1836
1837 {
1838 dREQ;
1839
1840 req->type = EIO_SLURP;
1841 req_set_path1 (req, pathname);
1842 req->offs = offset;
1843 req->size = length;
1844 req->sv2 = SvREFCNT_inc (data);
1845 req->ptr2 = svptr;
1846
1847 if (!SvREADONLY (data))
1848 {
1849 SvREADONLY_on (data);
1850 req->flags |= FLAG_SV2_RO_OFF;
1851 }
1852
1853 REQ_SEND;
1854 }
1855}
1856
1857void
1858aio_busy (double delay, SV *callback = &PL_sv_undef)
1298 PPCODE: 1859 PPCODE:
1299{ 1860{
1300 dREQ; 1861 dREQ;
1301 1862
1302 req->type = REQ_NOP; 1863 req->type = EIO_BUSY;
1864 req->nv1 = delay < 0. ? 0. : delay;
1303 1865
1304 REQ_SEND; 1866 REQ_SEND;
1305} 1867}
1306 1868
1307void 1869void
1870aio_group (SV *callback = &PL_sv_undef)
1871 PPCODE:
1872{
1873 dREQ;
1874
1875 req->type = EIO_GROUP;
1876
1877 PUTBACK;
1878 req_submit (req);
1879 SPAGAIN;
1880
1881 XPUSHs (req_sv (req, aio_grp_stash));
1882}
1883
1884void
1885aio_nop (SV *callback = &PL_sv_undef)
1886 ALIAS:
1887 aio_nop = EIO_NOP
1888 aio_sync = EIO_SYNC
1889 PPCODE:
1890{
1891 dREQ;
1892
1893 req->type = ix;
1894
1895 REQ_SEND;
1896}
1897
1898int
1308aioreq_pri (int pri = DEFAULT_PRI) 1899aioreq_pri (int pri = NO_INIT)
1309 CODE: 1900 CODE:
1901 RETVAL = next_pri;
1902 if (items > 0)
1903 {
1310 if (pri < PRI_MIN) pri = PRI_MIN; 1904 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1311 if (pri > PRI_MAX) pri = PRI_MAX; 1905 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1312 next_pri = pri + PRI_BIAS; 1906 next_pri = pri;
1907 }
1908 OUTPUT:
1909 RETVAL
1910
1911void
1912aioreq_nice (int nice = 0)
1913 CODE:
1914 nice = next_pri - nice;
1915 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1916 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1917 next_pri = nice;
1313 1918
1314void 1919void
1315flush () 1920flush ()
1316 PROTOTYPE:
1317 CODE: 1921 CODE:
1318 while (nreqs) 1922 while (eio_nreqs ())
1319 { 1923 {
1320 poll_wait (); 1924 poll_wait ();
1321 poll_cb (); 1925 poll_cb ();
1322 } 1926 }
1323 1927
1324void 1928int
1325poll() 1929poll ()
1326 PROTOTYPE:
1327 CODE: 1930 CODE:
1328 if (nreqs)
1329 {
1330 poll_wait (); 1931 poll_wait ();
1331 poll_cb (); 1932 RETVAL = poll_cb ();
1332 }
1333
1334int
1335poll_fileno()
1336 PROTOTYPE:
1337 CODE:
1338 RETVAL = respipe [0];
1339 OUTPUT: 1933 OUTPUT:
1340 RETVAL 1934 RETVAL
1341 1935
1342int 1936int
1937poll_fileno ()
1938 CODE:
1939 RETVAL = s_epipe_fd (&respipe);
1940 OUTPUT:
1941 RETVAL
1942
1943int
1343poll_cb(...) 1944poll_cb (...)
1344 PROTOTYPE: 1945 PROTOTYPE:
1345 CODE: 1946 CODE:
1346 RETVAL = poll_cb (); 1947 RETVAL = poll_cb ();
1347 OUTPUT: 1948 OUTPUT:
1348 RETVAL 1949 RETVAL
1349 1950
1350void 1951void
1351poll_wait() 1952poll_wait ()
1352 PROTOTYPE:
1353 CODE: 1953 CODE:
1354 if (nreqs)
1355 poll_wait (); 1954 poll_wait ();
1356 1955
1357int 1956int
1358nreqs() 1957nreqs ()
1359 PROTOTYPE:
1360 CODE: 1958 CODE:
1361 RETVAL = nreqs; 1959 RETVAL = eio_nreqs ();
1362 OUTPUT: 1960 OUTPUT:
1363 RETVAL 1961 RETVAL
1364 1962
1963int
1964nready ()
1965 CODE:
1966 RETVAL = eio_nready ();
1967 OUTPUT:
1968 RETVAL
1969
1970int
1971npending ()
1972 CODE:
1973 RETVAL = eio_npending ();
1974 OUTPUT:
1975 RETVAL
1976
1977int
1978nthreads ()
1979 CODE:
1980 RETVAL = eio_nthreads ();
1981 OUTPUT:
1982 RETVAL
1983
1984int
1985fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1986 CODE:
1987 RETVAL = posix_fadvise (fh, offset, length, advice);
1988 OUTPUT:
1989 RETVAL
1990
1991IV
1992sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1993 CODE:
1994 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1995 OUTPUT:
1996 RETVAL
1997
1998void
1999mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2000 PPCODE:
2001 sv_clear_foreign (scalar);
2002{
2003 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2004 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2005 if (addr == (void *)-1)
2006 XSRETURN_NO;
2007
2008 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2009
2010 if (!(prot & PROT_WRITE))
2011 SvREADONLY_on (scalar);
2012
2013 XSRETURN_YES;
2014}
2015
2016void
2017munmap (SV *scalar)
2018 CODE:
2019 sv_clear_foreign (scalar);
2020
2021int
2022madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2023 ALIAS:
2024 mprotect = 1
2025 CODE:
2026{
2027 STRLEN svlen;
2028 void *addr = SvPVbyte (scalar, svlen);
2029 STRLEN len = SvUV (length);
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 addr = (void *)(((intptr_t)addr) + offset);
2041 eio_page_align (&addr, &len);
2042
2043 switch (ix)
2044 {
2045 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2046 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2047 }
2048}
2049 OUTPUT:
2050 RETVAL
2051
2052int
2053munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2054 CODE:
2055{
2056 STRLEN svlen;
2057 void *addr = SvPVbyte (scalar, svlen);
2058 size_t len = SvUV (length);
2059
2060 if (offset < 0)
2061 offset += svlen;
2062
2063 if (offset < 0 || offset > svlen)
2064 croak ("offset outside of scalar");
2065
2066 if (!SvOK (length) || len + offset > svlen)
2067 len = svlen - offset;
2068
2069 addr = (void *)(((intptr_t)addr) + offset);
2070 eio_page_align (&addr, &len);
2071#if _POSIX_MEMLOCK_RANGE
2072 RETVAL = munlock (addr, len);
2073#else
2074 RETVAL = EIO_ENOSYS ();
2075#endif
2076}
2077 OUTPUT:
2078 RETVAL
2079
2080int
2081munlockall ()
2082 CODE:
2083#if _POSIX_MEMLOCK
2084 munlockall ();
2085#else
2086 RETVAL = EIO_ENOSYS ();
2087#endif
2088 OUTPUT:
2089 RETVAL
2090
2091int
2092splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2093 CODE:
2094{
2095#if HAVE_LINUX_SPLICE
2096 loff_t off_in_, off_out_;
2097 RETVAL = splice (
2098 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2099 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2100 length, flags
2101 );
2102#else
2103 RETVAL = EIO_ENOSYS ();
2104#endif
2105}
2106 OUTPUT:
2107 RETVAL
2108
2109int
2110tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2111 CODE:
2112#if HAVE_LINUX_SPLICE
2113 RETVAL = tee (rfh, wfh, length, flags);
2114#else
2115 RETVAL = EIO_ENOSYS ();
2116#endif
2117 OUTPUT:
2118 RETVAL
2119
2120int
2121pipesize (aio_rfd rfh, int new_size = -1)
2122 PROTOTYPE: $;$
2123 CODE:
2124#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2125 if (new_size >= 0)
2126 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2127 else
2128 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2129#else
2130 errno = ENOSYS;
2131 RETVAL = -1;
2132#endif
2133 OUTPUT:
2134 RETVAL
2135
2136void
2137pipe2 (int flags = 0)
2138 PROTOTYPE: ;$
2139 PPCODE:
2140{
2141 int fd[2];
2142 int res;
2143
2144 if (flags)
2145#if HAVE_PIPE2
2146 res = pipe2 (fd, flags);
2147#else
2148 res = (errno = ENOSYS, -1);
2149#endif
2150 else
2151 res = pipe (fd);
2152
2153 if (!res)
2154 {
2155 EXTEND (SP, 2);
2156 PUSHs (newmortalFH (fd[0], O_RDONLY));
2157 PUSHs (newmortalFH (fd[1], O_WRONLY));
2158 }
2159}
2160
2161UV
2162get_fdlimit ()
2163 CODE:
2164#if HAVE_RLIMITS
2165 struct rlimit rl;
2166 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2167 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2168#endif
2169 XSRETURN_UNDEF;
2170 OUTPUT:
2171 RETVAL
2172
2173void
2174min_fdlimit (UV limit = 0x7fffffffU)
2175 CODE:
2176{
2177#if HAVE_RLIMITS
2178 struct rlimit rl;
2179 rlim_t orig_rlim_max;
2180 UV bit;
2181
2182 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2183 goto fail;
2184
2185 if (rl.rlim_cur == RLIM_INFINITY)
2186 XSRETURN_YES;
2187
2188 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2189
2190 if (rl.rlim_cur < limit)
2191 {
2192 rl.rlim_cur = limit;
2193
2194 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2195 rl.rlim_max = rl.rlim_cur;
2196 }
2197
2198 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2199 XSRETURN_YES;
2200
2201 if (errno == EPERM)
2202 {
2203 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2204 /* our limit overflows a system-wide limit */
2205 /* try an adaptive algorithm, but do not lower the hardlimit */
2206 rl.rlim_max = 0;
2207 for (bit = 0x40000000U; bit; bit >>= 1)
2208 {
2209 rl.rlim_max |= bit;
2210 rl.rlim_cur = rl.rlim_max;
2211
2212 /* nevr decrease the hard limit */
2213 if (rl.rlim_max < orig_rlim_max)
2214 break;
2215
2216 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2217 rl.rlim_max &= ~bit; /* too high, remove bit again */
2218 }
2219
2220 /* now, raise the soft limit to the max permitted */
2221 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2222 {
2223 rl.rlim_cur = rl.rlim_max;
2224 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2225 errno = EPERM;
2226 }
2227 }
2228#endif
2229 fail:
2230 XSRETURN_UNDEF;
2231}
2232
2233void _on_next_submit (SV *cb)
2234 CODE:
2235 SvREFCNT_dec (on_next_submit);
2236 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2237
1365PROTOTYPES: DISABLE 2238PROTOTYPES: DISABLE
2239
2240MODULE = IO::AIO PACKAGE = IO::AIO::WD
2241
2242BOOT:
2243{
2244 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2245 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2246}
2247
2248void
2249DESTROY (SV *self)
2250 CODE:
2251{
2252 aio_wd wd = SvAIO_WD (self);
2253#if HAVE_AT
2254 {
2255 SV *callback = &PL_sv_undef;
2256 dREQ; /* clobbers next_pri :/ */
2257 next_pri = req->pri; /* restore next_pri */
2258 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2259 req->type = EIO_WD_CLOSE;
2260 req->wd = wd;
2261 REQ_SEND;
2262 }
2263#else
2264 eio_wd_close_sync (wd);
2265#endif
2266}
1366 2267
1367MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2268MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1368 2269
1369void 2270void
1370cancel (aio_req_ornot req) 2271cancel (aio_req_ornot req)
1371 CODE: 2272 CODE:
1372 req_cancel (req); 2273 eio_cancel (req);
1373 2274
1374void 2275void
1375cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2276cb (aio_req_ornot req, SV *callback = NO_INIT)
1376 CODE: 2277 PPCODE:
2278{
2279 if (GIMME_V != G_VOID)
2280 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2281
2282 if (items > 1)
2283 {
2284 SV *cb_cv = get_cb (callback);
2285
1377 SvREFCNT_dec (req->callback); 2286 SvREFCNT_dec (req->callback);
1378 req->callback = newSVsv (callback); 2287 req->callback = SvREFCNT_inc (cb_cv);
2288 }
2289}
1379 2290
1380MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2291MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1381 2292
1382void 2293void
1383add (aio_req grp, ...) 2294add (aio_req grp, ...)
1384 PPCODE: 2295 PPCODE:
1385{ 2296{
1386 int i; 2297 int i;
1387 aio_req req;
1388 2298
1389 if (grp->fd == 2) 2299 if (grp->int1 == 2)
1390 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2300 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1391 2301
1392 for (i = 1; i < items; ++i ) 2302 for (i = 1; i < items; ++i )
1393 { 2303 {
2304 aio_req req;
2305
1394 if (GIMME_V != G_VOID) 2306 if (GIMME_V != G_VOID)
1395 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2307 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1396 2308
1397 req = SvAIO_REQ (ST (i)); 2309 req = SvAIO_REQ (ST (i));
1398 2310
1399 if (req) 2311 if (req)
1400 { 2312 eio_grp_add (grp, req);
1401 ++grp->length;
1402 req->grp = grp;
1403
1404 req->grp_prev = 0;
1405 req->grp_next = grp->grp_first;
1406
1407 if (grp->grp_first)
1408 grp->grp_first->grp_prev = req;
1409
1410 grp->grp_first = req;
1411 }
1412 } 2313 }
1413} 2314}
2315
2316void
2317cancel_subs (aio_req_ornot req)
2318 CODE:
2319 req_cancel_subs (req);
1414 2320
1415void 2321void
1416result (aio_req grp, ...) 2322result (aio_req grp, ...)
1417 CODE: 2323 CODE:
1418{ 2324{
1419 int i; 2325 int i;
2326 AV *av;
2327
2328 grp->errorno = errno;
2329
1420 AV *av = newAV (); 2330 av = newAV ();
2331 av_extend (av, items - 1);
1421 2332
1422 for (i = 1; i < items; ++i ) 2333 for (i = 1; i < items; ++i )
1423 av_push (av, newSVsv (ST (i))); 2334 av_push (av, newSVsv (ST (i)));
1424 2335
1425 SvREFCNT_dec (grp->data); 2336 SvREFCNT_dec (grp->sv1);
1426 grp->data = (SV *)av; 2337 grp->sv1 = (SV *)av;
1427} 2338}
2339
2340void
2341errno (aio_req grp, int errorno = errno)
2342 CODE:
2343 grp->errorno = errorno;
1428 2344
1429void 2345void
1430limit (aio_req grp, int limit) 2346limit (aio_req grp, int limit)
1431 CODE: 2347 CODE:
1432 grp->fd2 = limit; 2348 eio_grp_limit (grp, limit);
1433 aio_grp_feed (grp);
1434 2349
1435void 2350void
1436feed (aio_req grp, SV *callback=&PL_sv_undef) 2351feed (aio_req grp, SV *callback = &PL_sv_undef)
1437 CODE: 2352 CODE:
1438{ 2353{
1439 SvREFCNT_dec (grp->fh2); 2354 SvREFCNT_dec (grp->sv2);
1440 grp->fh2 = newSVsv (callback); 2355 grp->sv2 = newSVsv (callback);
2356 grp->feed = aio_grp_feed;
1441 2357
1442 if (grp->fd2 <= 0) 2358 if (grp->int2 <= 0)
1443 grp->fd2 = 2; 2359 grp->int2 = 2;
1444 2360
1445 aio_grp_feed (grp); 2361 eio_grp_limit (grp, grp->int2);
1446} 2362}
1447 2363

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