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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 1.186 by root, Thu Jul 14 22:36:17 2011 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h> 21# include <sys/mman.h>
36# elif __freebsd 22#endif
37# include <sys/socket.h> 23
24/* perl namespace pollution */
25#undef VERSION
26
27#ifdef _WIN32
28
29# define EIO_STRUCT_DIRENT Direntry_t
30# undef malloc
31# undef free
32
33// perl overrides all those nice win32 functions
34# undef open
35# undef read
36# undef write
37# undef send
38# undef recv
39# undef stat
40# undef fstat
41# define lstat stat
42# undef truncate
43# undef ftruncate
44# undef open
45# undef close
46# undef unlink
47# undef rmdir
48# undef rename
49# undef lseek
50
51# define opendir(fd) (errno = ENOSYS, 0)
52# define readdir(fd) (errno = ENOSYS, -1)
53# define closedir(fd) (errno = ENOSYS, -1)
54
55#else
56
38# include <sys/uio.h> 57# include <sys/time.h>
39# elif __hpux
40# include <sys/socket.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 58# include <sys/select.h>
59# include <unistd.h>
60# include <utime.h>
61# include <signal.h>
62# define EIO_STRUCT_DIRENT struct dirent
63
64#endif
65
66/* perl stupidly overrides readdir and maybe others */
67/* with thread-unsafe versions, imagine that :( */
68#undef readdir
69#undef opendir
70#undef closedir
71
72#define EIO_STRUCT_STAT Stat_t
73
74/* use NV for 32 bit perls as it allows larger offsets */
75#if IVSIZE >= 8
76# define VAL64 IV
77# define SvVAL64 SvIV
78# define newSVval64 newSViv
79#else
80# define VAL64 NV
81# define SvVAL64 SvNV
82# define newSVval64 newSVnv
83#endif
84
85/*****************************************************************************/
86
87#if __GNUC__ >= 3
88# define expect(expr,value) __builtin_expect ((expr),(value))
89#else
90# define expect(expr,value) (expr)
91#endif
92
93#define expect_false(expr) expect ((expr) != 0, 0)
94#define expect_true(expr) expect ((expr) != 0, 1)
95
96/*****************************************************************************/
97
98typedef SV SV8; /* byte-sv, used for argument-checking */
99typedef int aio_rfd; /* read file desriptor */
100typedef int aio_wfd; /* write file descriptor */
101
102static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
103
104#define EIO_REQ_MEMBERS \
105 SV *callback; \
106 SV *sv1, *sv2; \
107 STRLEN stroffset; \
108 SV *self;
109
110#define EIO_NO_WRAPPERS 1
111
112#include "libeio/config.h"
113#include "libeio/eio.h"
114
115/* Linux/others */
116#ifndef O_ASYNC
117# define O_ASYNC 0
118#endif
119#ifndef O_DIRECT
120# define O_DIRECT 0
121#endif
122#ifndef O_NOATIME
123# define O_NOATIME 0
124#endif
125
126/* POSIX */
127#ifndef O_CLOEXEC
128# define O_CLOEXEC 0
129#endif
130#ifndef O_NOFOLLOW
131# define O_NOFOLLOW 0
132#endif
133#ifndef O_NOCTTY
134# define O_NOCTTY 0
135#endif
136#ifndef O_NONBLOCK
137# define O_NONBLOCK 0
138#endif
139#ifndef O_EXEC
140# define O_EXEC 0
141#endif
142#ifndef O_SEARCH
143# define O_SEARCH 0
144#endif
145#ifndef O_DIRECTORY
146# define O_DIRECTORY 0
147#endif
148#ifndef O_DSYNC
149# define O_DSYNC 0
150#endif
151#ifndef O_RSYNC
152# define O_RSYNC 0
153#endif
154#ifndef O_SYNC
155# define O_SYNC 0
156#endif
157#ifndef O_TTY_INIT
158# define O_TTY_INIT 0
159#endif
160
161#ifndef POSIX_FADV_NORMAL
162# define POSIX_FADV_NORMAL 0
163#endif
164#ifndef POSIX_FADV_SEQUENTIAL
165# define POSIX_FADV_SEQUENTIAL 0
166#endif
167#ifndef POSIX_FADV_RANDOM
168# define POSIX_FADV_RANDOM 0
169#endif
170#ifndef POSIX_FADV_NOREUSE
171# define POSIX_FADV_NOREUSE 0
172#endif
173#ifndef POSIX_FADV_WILLNEED
174# define POSIX_FADV_WILLNEED 0
175#endif
176#ifndef POSIX_FADV_DONTNEED
177# define POSIX_FADV_DONTNEED 0
178#endif
179
180#if !HAVE_POSIX_FADVISE
181# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
182#endif
183
184#ifndef POSIX_MADV_NORMAL
185# define POSIX_MADV_NORMAL 0
186#endif
187#ifndef POSIX_MADV_SEQUENTIAL
188# define POSIX_MADV_SEQUENTIAL 0
189#endif
190#ifndef POSIX_MADV_RANDOM
191# define POSIX_MADV_RANDOM 0
192#endif
193#ifndef POSIX_MADV_WILLNEED
194# define POSIX_MADV_WILLNEED 0
195#endif
196#ifndef POSIX_MADV_DONTNEED
197# define POSIX_MADV_DONTNEED 0
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef PROT_NONE
205# define PROT_NONE 0
206#endif
207#ifndef PROT_READ
208# define PROT_READ 0
209#endif
210#ifndef PROT_WRITE
211# define PROT_READ 0
212#endif
213#ifndef PROT_EXEC
214# define PROT_EXEC 0
215#endif
216
217#ifndef ST_NODEV
218# define ST_NODEV 0
219#endif
220#ifndef ST_NOEXEC
221# define ST_NOEXEC 0
222#endif
223#ifndef ST_SYNCHRONOUS
224# define ST_SYNCHRONOUS 0
225#endif
226#ifndef ST_MANDLOCK
227# define ST_MANDLOCK 0
228#endif
229#ifndef ST_WRITE
230# define ST_WRITE 0
231#endif
232#ifndef ST_APPEND
233# define ST_APPEND 0
234#endif
235#ifndef ST_IMMUTABLE
236# define ST_IMMUTABLE 0
237#endif
238#ifndef ST_NOATIME
239# define ST_NOATIME 0
240#endif
241#ifndef ST_NODIRATIME
242# define ST_NODIRATIME 0
243#endif
244#ifndef ST_RELATIME
245# define ST_RELATIME 0
246#endif
247
248#ifndef S_IFIFO
249# define S_IFIFO 0
250#endif
251#ifndef S_IFCHR
252# define S_IFCHR 0
253#endif
254#ifndef S_IFBLK
255# define S_IFBLK 0
256#endif
257#ifndef S_IFLNK
258# define S_IFLNK 0
259#endif
260#ifndef S_IFREG
261# define S_IFREG 0
262#endif
263#ifndef S_IFDIR
264# define S_IFDIR 0
265#endif
266#ifndef S_IFWHT
267# define S_IFWHT 0
268#endif
269#ifndef S_IFSOCK
270# define S_IFSOCK 0
271#endif
272
273#ifndef MAP_ANONYMOUS
274# ifdef MAP_ANON
275# define MAP_ANONYMOUS MAP_ANON
43# else 276# else
44# error sendfile support requested but not available 277# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 278# endif
46#endif 279#endif
47 280#ifndef MAP_HUGETLB
48/* used for struct dirent, AIX doesn't provide it */ 281# define MAP_HUGETLB 0
49#ifndef NAME_MAX
50# define NAME_MAX 4096
51#endif
52
53#ifndef PTHREAD_STACK_MIN
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif
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 282#endif
283#ifndef MAP_LOCKED
284# define MAP_LOCKED 0
76#endif 285#endif
286#ifndef MAP_NORESERVE
287# define MAP_NORESERVE 0
288#endif
289#ifndef MAP_POPULATE
290# define MAP_POPULATE 0
291#endif
292#ifndef MAP_NONBLOCK
293# define MAP_NONBLOCK 0
294#endif
77 295
78/* buffer size for various temporary buffers */ 296#ifndef makedev
79#define AIO_BUFSIZE 65536 297# define makedev(maj,min) (((maj) << 8) | (min))
298#endif
299#ifndef major
300# define major(dev) ((dev) >> 8)
301#endif
302#ifndef minor
303# define minor(dev) ((dev) & 0xff)
304#endif
80 305
81#define dBUF \ 306#ifndef PAGESIZE
82 char *aio_buf; \ 307# define PAGESIZE sysconf (_SC_PAGESIZE)
83 LOCK (wrklock); \ 308#endif
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 309
85 UNLOCK (wrklock); \ 310static int req_invoke (eio_req *req);
86 if (!aio_buf) \ 311#define EIO_FINISH(req) req_invoke (req)
87 return -1; 312static void req_destroy (eio_req *grp);
313#define EIO_DESTROY(req) req_destroy (req)
88 314
89enum { 315enum {
90 REQ_QUIT, 316 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
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}; 317};
102 318
103#define AIO_REQ_KLASS "IO::AIO::REQ" 319#include "libeio/eio.c"
104#define AIO_GRP_KLASS "IO::AIO::GRP"
105 320
106typedef struct aio_cb
107{
108 struct aio_cb *volatile next;
109
110 SV *data, *callback;
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
118 STRLEN dataoffset;
119 int type;
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123
124 unsigned char flags;
125 unsigned char pri;
126
127 SV *self; /* the perl counterpart of this request, if any */
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129} aio_cb;
130
131enum {
132 FLAG_CANCELLED = 0x01,
133};
134
135typedef aio_cb *aio_req; 321typedef eio_req *aio_req;
136typedef aio_cb *aio_req_ornot; 322typedef eio_req *aio_req_ornot;
137 323
138enum { 324static SV *on_next_submit;
139 PRI_MIN = -4, 325static int next_pri = EIO_PRI_DEFAULT;
140 PRI_MAX = 4, 326static int max_outstanding;
141 327
142 DEFAULT_PRI = 0, 328static s_epipe respipe;
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146 329
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{
182 if (wrk->dirp)
183 {
184 closedir (wrk->dirp);
185 wrk->dirp = 0;
186 }
187
188 if (wrk->dbuf)
189 {
190 free (wrk->dbuf);
191 wrk->dbuf = 0;
192 }
193}
194
195static void worker_free (worker *wrk)
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;
242
243 --q->size;
244
245 for (pri = NUM_PRI; pri--; )
246 {
247 aio_req req = q->qs[pri];
248
249 if (req)
250 {
251 if (!(q->qs[pri] = req->next))
252 q->qe[pri] = 0;
253
254 return req;
255 }
256 }
257
258 abort ();
259}
260
261static int poll_cb (int max);
262static void req_invoke (aio_req req);
263static void req_free (aio_req req); 330static void req_destroy (aio_req req);
264static void req_cancel (aio_req req); 331static void req_cancel (aio_req req);
265 332
333static void want_poll (void)
334{
335 /* write a dummy byte to the pipe so fh becomes ready */
336 s_epipe_signal (&respipe);
337}
338
339static void done_poll (void)
340{
341 /* read any signals sent by the worker threads */
342 s_epipe_drain (&respipe);
343}
344
266/* must be called at most once */ 345/* must be called at most once */
267static SV *req_sv (aio_req req, const char *klass) 346static SV *req_sv (aio_req req, HV *stash)
268{ 347{
269 if (!req->self) 348 if (!req->self)
270 { 349 {
271 req->self = (SV *)newHV (); 350 req->self = (SV *)newHV ();
272 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 351 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
273 } 352 }
274 353
275 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 354 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
276} 355}
277 356
278static aio_req SvAIO_REQ (SV *sv) 357static aio_req SvAIO_REQ (SV *sv)
279{ 358{
280 MAGIC *mg; 359 MAGIC *mg;
281 360
282 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 361 if (!SvROK (sv)
362 || (SvSTASH (SvRV (sv)) != aio_grp_stash
363 && SvSTASH (SvRV (sv)) != aio_req_stash
364 && !sv_derived_from (sv, "IO::AIO::REQ")))
283 croak ("object of class " AIO_REQ_KLASS " expected"); 365 croak ("object of class IO::AIO::REQ expected");
284 366
285 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 367 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
286 368
287 return mg ? (aio_req)mg->mg_ptr : 0; 369 return mg ? (aio_req)mg->mg_ptr : 0;
288} 370}
289 371
290static void aio_grp_feed (aio_req grp) 372static void aio_grp_feed (aio_req grp)
291{ 373{
292 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
293 { 375 {
294 int old_len = grp->length;
295
296 if (grp->fh2 && SvOK (grp->fh2))
297 {
298 dSP; 376 dSP;
299 377
300 ENTER; 378 ENTER;
301 SAVETMPS; 379 SAVETMPS;
302 PUSHMARK (SP); 380 PUSHMARK (SP);
303 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
304 PUTBACK; 382 PUTBACK;
305 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
306 SPAGAIN; 384 SPAGAIN;
307 FREETMPS; 385 FREETMPS;
308 LEAVE; 386 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 } 387 }
319} 388}
320 389
321static void aio_grp_dec (aio_req grp) 390static void req_submit (eio_req *req)
322{ 391{
323 --grp->length; 392 eio_submit (req);
324 393
325 /* call feeder, if applicable */ 394 if (expect_false (on_next_submit))
326 aio_grp_feed (grp);
327
328 /* finish, if done */
329 if (!grp->length && grp->fd)
330 { 395 {
331 req_invoke (grp); 396 dSP;
332 req_free (grp); 397 SV *cb = sv_2mortal (on_next_submit);
398
399 on_next_submit = 0;
400
401 PUSHMARK (SP);
402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
333 } 404 }
334} 405}
335 406
336static void poll_wait () 407static int req_invoke (eio_req *req)
337{ 408{
338 fd_set rfd; 409 if (req->flags & FLAG_SV2_RO_OFF)
410 SvREADONLY_off (req->sv2);
339 411
340 while (nreqs) 412 if (!EIO_CANCELLED (req) && req->callback)
341 { 413 {
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; 414 dSP;
415 static SV *sv_result_cache; /* caches the result integer SV */
416 SV *sv_result;
360 417
361 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
362 {
363 ENTER; 418 ENTER;
364 SAVETMPS; 419 SAVETMPS;
365 PUSHMARK (SP); 420 PUSHMARK (SP);
366 EXTEND (SP, 1); 421 EXTEND (SP, 1);
367 422
423 /* do not recreate the result IV from scratch each time */
424 if (expect_true (sv_result_cache))
425 {
426 sv_result = sv_result_cache; sv_result_cache = 0;
427 SvIV_set (sv_result, req->result);
428 SvIOK_only (sv_result);
429 }
430 else
431 {
432 sv_result = newSViv (req->result);
433 SvREADONLY_on (sv_result);
434 }
435
368 switch (req->type) 436 switch (req->type)
369 { 437 {
370 case REQ_READDIR: 438 case EIO_READDIR:
371 { 439 {
372 SV *rv = &PL_sv_undef; 440 SV *rv = &PL_sv_undef;
373 441
374 if (req->result >= 0) 442 if (req->result >= 0)
375 { 443 {
376 int i; 444 int i;
377 char *buf = req->data2ptr; 445 char *names = (char *)req->ptr2;
446 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
378 AV *av = newAV (); 447 AV *av = newAV ();
379 448
380 av_extend (av, req->result - 1); 449 av_extend (av, req->result - 1);
381 450
382 for (i = 0; i < req->result; ++i) 451 for (i = 0; i < req->result; ++i)
383 { 452 {
384 SV *sv = newSVpv (buf, 0); 453 if (req->int1 & EIO_READDIR_DENTS)
454 {
455 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
385 456
457 if (req->int1 & EIO_READDIR_CUSTOM2)
458 {
459 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
460 AV *avent = newAV ();
461
462 av_extend (avent, 2);
463
464 if (!sv_type [ent->type])
465 {
466 sv_type [ent->type] = newSViv (ent->type);
467 SvREADONLY_on (sv_type [ent->type]);
468 }
469
470 av_store (avent, 0, namesv);
471 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
472 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
473
474 av_store (av, i, newRV_noinc ((SV *)avent));
475 }
476 else
386 av_store (av, i, sv); 477 av_store (av, i, namesv);
478
479 ++ent;
480 }
481 else
482 {
483 SV *name = newSVpv (names, 0);
484 av_store (av, i, name);
387 buf += SvCUR (sv) + 1; 485 names += SvCUR (name) + 1;
486 }
388 } 487 }
389 488
390 rv = sv_2mortal (newRV_noinc ((SV *)av)); 489 rv = sv_2mortal (newRV_noinc ((SV *)av));
391 } 490 }
392 491
393 PUSHs (rv); 492 PUSHs (rv);
493
494 if (req->int1 & EIO_READDIR_CUSTOM1)
495 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
394 } 496 }
395 break; 497 break;
396 498
397 case REQ_OPEN: 499 case EIO_OPEN:
398 { 500 {
399 /* convert fd to fh */ 501 /* convert fd to fh */
400 SV *fh; 502 SV *fh = &PL_sv_undef;
401 503
402 PUSHs (sv_2mortal (newSViv (req->result))); 504 if (req->result >= 0)
403 PUTBACK; 505 {
404 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 506 GV *gv = (GV *)sv_newmortal ();
405 SPAGAIN; 507 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
508 char sym [64];
509 int symlen;
510
511 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
512 gv_init (gv, aio_stash, sym, symlen, 0);
406 513
407 fh = SvREFCNT_inc (POPs); 514 symlen = snprintf (
515 sym,
516 sizeof (sym),
517 "%s&=%d",
518 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
519 (int)req->result
520 );
408 521
522 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
523 fh = (SV *)gv;
524 }
525
409 PUSHMARK (SP); 526 PUSHs (fh);
410 XPUSHs (sv_2mortal (fh));
411 } 527 }
412 break; 528 break;
413 529
530 case EIO_STATVFS:
531 case EIO_FSTATVFS:
532 {
533 SV *rv = &PL_sv_undef;
534
535 if (req->result >= 0)
536 {
537 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
538 HV *hv = newHV ();
539
540 rv = sv_2mortal (newRV_noinc ((SV *)hv));
541
542 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
543 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
544 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
545 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
546 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
547 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
548 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
549 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
550 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
551 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
552 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
553 }
554
555 PUSHs (rv);
556 }
557
558 break;
559
414 case REQ_GROUP: 560 case EIO_GROUP:
415 req->fd = 2; /* mark group as finished */ 561 req->int1 = 2; /* mark group as finished */
416 562
417 if (req->data) 563 if (req->sv1)
418 { 564 {
419 int i; 565 int i;
420 AV *av = (AV *)req->data; 566 AV *av = (AV *)req->sv1;
421 567
422 EXTEND (SP, AvFILL (av) + 1); 568 EXTEND (SP, AvFILL (av) + 1);
423 for (i = 0; i <= AvFILL (av); ++i) 569 for (i = 0; i <= AvFILL (av); ++i)
424 PUSHs (*av_fetch (av, i, 0)); 570 PUSHs (*av_fetch (av, i, 0));
425 } 571 }
426 break; 572 break;
427 573
428 case REQ_NOP: 574 case EIO_NOP:
429 case REQ_BUSY: 575 case EIO_BUSY:
430 break; 576 break;
431 577
578 case EIO_READLINK:
579 case EIO_REALPATH:
580 if (req->result > 0)
581 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
582 break;
583
584 case EIO_STAT:
585 case EIO_LSTAT:
586 case EIO_FSTAT:
587 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
588 PL_laststatval = req->result;
589 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
590 PUSHs (sv_result);
591 break;
592
593 case EIO_READ:
594 {
595 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
596 *SvEND (req->sv2) = 0;
597 SvPOK_only (req->sv2);
598 SvSETMAGIC (req->sv2);
599 PUSHs (sv_result);
600 }
601 break;
602
603 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
604 if (req->result > 0)
605 SvIV_set (sv_result, 0);
606 /* FALLTHROUGH */
607
432 default: 608 default:
433 PUSHs (sv_2mortal (newSViv (req->result))); 609 PUSHs (sv_result);
434 break; 610 break;
435 } 611 }
436 612
437 errno = req->errorno; 613 errno = req->errorno;
438 614
439 PUTBACK; 615 PUTBACK;
440 call_sv (req->callback, G_VOID | G_EVAL); 616 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
441 SPAGAIN; 617 SPAGAIN;
618
619 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
620 SvREFCNT_dec (sv_result);
621 else
622 sv_result_cache = sv_result;
442 623
443 FREETMPS; 624 FREETMPS;
444 LEAVE; 625 LEAVE;
626
627 PUTBACK;
445 } 628 }
446 629
447 if (req->grp) 630 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} 631}
467 632
468static void req_free (aio_req req) 633static void req_destroy (aio_req req)
469{ 634{
470 if (req->self) 635 if (req->self)
471 { 636 {
472 sv_unmagic (req->self, PERL_MAGIC_ext); 637 sv_unmagic (req->self, PERL_MAGIC_ext);
473 SvREFCNT_dec (req->self); 638 SvREFCNT_dec (req->self);
474 } 639 }
475 640
476 SvREFCNT_dec (req->data);
477 SvREFCNT_dec (req->fh); 641 SvREFCNT_dec (req->sv1);
478 SvREFCNT_dec (req->fh2); 642 SvREFCNT_dec (req->sv2);
479 SvREFCNT_dec (req->callback); 643 SvREFCNT_dec (req->callback);
480 Safefree (req->statdata);
481
482 if (req->type == REQ_READDIR)
483 free (req->data2ptr);
484 644
485 Safefree (req); 645 Safefree (req);
486} 646}
487 647
488static void req_cancel_subs (aio_req grp) 648static void req_cancel_subs (aio_req grp)
489{ 649{
490 aio_req sub; 650 aio_req sub;
491 651
492 if (grp->type != REQ_GROUP) 652 if (grp->type != EIO_GROUP)
493 return; 653 return;
494 654
495 SvREFCNT_dec (grp->fh2); 655 SvREFCNT_dec (grp->sv2);
496 grp->fh2 = 0; 656 grp->sv2 = 0;
497 657
498 for (sub = grp->grp_first; sub; sub = sub->grp_next) 658 eio_grp_cancel (grp);
499 req_cancel (sub);
500} 659}
501 660
502static void req_cancel (aio_req req) 661static void create_respipe (void)
503{ 662{
504 req->flags |= FLAG_CANCELLED; 663 if (s_epipe_renew (&respipe))
505 664 croak ("IO::AIO: unable to initialize result pipe");
506 req_cancel_subs (req);
507} 665}
508 666
667static void poll_wait (void)
668{
669 while (eio_nreqs ())
670 {
671 int size;
672
673 X_LOCK (reslock);
674 size = res_queue.size;
675 X_UNLOCK (reslock);
676
677 if (size)
678 return;
679
680 etp_maybe_start_thread ();
681
682 s_epipe_wait (&respipe);
683 }
684}
685
509static int poll_cb (int max) 686static int poll_cb (void)
510{ 687{
511 dSP;
512 int count = 0;
513 int do_croak = 0;
514 aio_req req;
515
516 for (;;) 688 for (;;)
517 { 689 {
518 while (max <= 0 || count < max) 690 int res = eio_poll ();
519 {
520 LOCK (reslock);
521 req = reqq_shift (&res_queue);
522 691
523 if (req) 692 if (res > 0)
524 {
525 --npending;
526
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 }
550 else
551 {
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 }
572
573 if (nreqs <= max_outstanding)
574 break; 693 croak (0);
694
695 if (!max_outstanding || max_outstanding > eio_nreqs ())
696 return res;
575 697
576 poll_wait (); 698 poll_wait ();
577
578 max = 0;
579 } 699 }
580
581 return count;
582} 700}
583 701
584static void *aio_proc(void *arg);
585
586static void start_thread (void) 702static void atfork_child (void)
587{ 703{
588 sigset_t fullsigset, oldsigset; 704 create_respipe ();
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} 705}
683 706
684/*****************************************************************************/ 707/*****************************************************************************/
685/* work around various missing functions */
686 708
687#if !HAVE_PREADWRITE 709#if !_POSIX_MAPPED_FILES
688# define pread aio_pread 710# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
689# define pwrite aio_pwrite 711# define munmap(addr,length) (errno = ENOSYS, -1)
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{
700 ssize_t res;
701 off_t ooffset;
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}
712
713static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
714{
715 ssize_t res;
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}
727#endif
728
729#if !HAVE_FDATASYNC
730# define fdatasync fsync
731#endif
732
733#if !HAVE_READAHEAD
734# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
735
736static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
737{
738 dBUF;
739
740 while (count > 0)
741 {
742 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
743
744 pread (fd, aio_buf, len, offset);
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{
761 struct dirent *e;
762 int errorno;
763
764 LOCK (readdirlock);
765
766 e = readdir (dirp);
767 errorno = errno;
768
769 if (e)
770 {
771 *res = ent;
772 strcpy (ent->d_name, e->d_name);
773 }
774 else
775 *res = 0;
776
777 UNLOCK (readdirlock);
778
779 errno = errorno;
780 return e ? 0 : -1;
781}
782#endif
783
784/* sendfile always needs emulation */
785static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
786{
787 ssize_t res;
788
789 if (!count)
790 return 0;
791
792#if HAVE_SENDFILE
793# if __linux
794 res = sendfile (ofd, ifd, &offset, count);
795
796# elif __freebsd
797 /*
798 * Of course, the freebsd sendfile is a dire hack with no thoughts
799 * wasted on making it similar to other I/O functions.
800 */
801 {
802 off_t sbytes;
803 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
804
805 if (res < 0 && sbytes)
806 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
807 res = sbytes;
808 }
809
810# elif __hpux
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 712#endif
830#else
831 res = -1;
832 errno = ENOSYS;
833#endif
834 713
835 if (res < 0 714#if !_POSIX_MEMORY_PROTECTION
836 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 715# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
837#if __solaris 716# define PROT_NONE 0
838 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 717# define PROT_WRITE 0
718# define MAP_PRIVATE 0
719# define MAP_SHARED 0
720# define MAP_FIXED 0
839#endif 721#endif
840 )
841 )
842 {
843 /* emulate sendfile. this is a major pain in the ass */
844 dBUF;
845 722
846 res = 0; 723#define MMAP_MAGIC PERL_MAGIC_ext
847 724
848 while (count) 725static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
849 { 726{
850 ssize_t cnt; 727 int old_errno = errno;
851 728 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
852 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 729 errno = old_errno;
853 730
854 if (cnt <= 0) 731 mg->mg_obj = 0; /* just in case */
855 {
856 if (cnt && !res) res = -1;
857 break;
858 }
859 732
860 cnt = write (ofd, aio_buf, cnt); 733 SvREADONLY_off (sv);
861 734
862 if (cnt <= 0) 735 if (SvPVX (sv) != mg->mg_ptr)
863 { 736 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
864 if (cnt && !res) res = -1;
865 break;
866 }
867 737
868 offset += cnt; 738 SvCUR_set (sv, 0);
869 res += cnt; 739 SvPVX (sv) = 0;
870 count -= cnt; 740 SvOK_off (sv);
871 }
872 }
873 741
874 return res; 742 return 0;
875} 743}
876 744
877/* read a full directory */ 745static MGVTBL mmap_vtbl = {
878static void scandir_ (aio_req req, worker *self) 746 0, 0, 0, 0, mmap_free
879{ 747};
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}
937 748
938/*****************************************************************************/ 749/*****************************************************************************/
939 750
940static void *aio_proc (void *thr_arg) 751static SV * get_cb (SV *cb_sv)
941{ 752{
942 aio_req req; 753 SvGETMAGIC (cb_sv);
943 int type; 754 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
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} 755}
1094 756
1095#define dREQ \ 757#define dREQ \
758 SV *cb_cv; \
1096 aio_req req; \ 759 aio_req req; \
1097 int req_pri = next_pri; \ 760 int req_pri = next_pri; \
1098 next_pri = DEFAULT_PRI + PRI_BIAS; \ 761 next_pri = EIO_PRI_DEFAULT; \
1099 \ 762 \
1100 if (SvOK (callback) && !SvROK (callback)) \ 763 cb_cv = get_cb (callback); \
1101 croak ("callback must be undef or of reference type"); \
1102 \ 764 \
1103 Newz (0, req, 1, aio_cb); \ 765 Newz (0, req, 1, eio_req); \
1104 if (!req) \ 766 if (!req) \
1105 croak ("out of memory during aio_req allocation"); \ 767 croak ("out of memory during eio_req allocation"); \
1106 \ 768 \
1107 req->callback = newSVsv (callback); \ 769 req->callback = SvREFCNT_inc (cb_cv); \
1108 req->pri = req_pri 770 req->pri = req_pri
1109 771
1110#define REQ_SEND \ 772#define REQ_SEND \
773 PUTBACK; \
1111 req_send (req); \ 774 req_submit (req); \
775 SPAGAIN; \
1112 \ 776 \
1113 if (GIMME_V != G_VOID) \ 777 if (GIMME_V != G_VOID) \
1114 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 778 XPUSHs (req_sv (req, aio_req_stash));
1115 779
1116MODULE = IO::AIO PACKAGE = IO::AIO 780MODULE = IO::AIO PACKAGE = IO::AIO
1117 781
1118PROTOTYPES: ENABLE 782PROTOTYPES: ENABLE
1119 783
1120BOOT: 784BOOT:
1121{ 785{
786 static const struct {
787 const char *name;
788 IV iv;
789 } *civ, const_iv[] = {
790# define const_niv(name, value) { # name, (IV) value },
791# define const_iv(name) { # name, (IV) name },
792# define const_eio(name) { # name, (IV) EIO_ ## name },
793 const_iv (EXDEV)
794 const_iv (ENOSYS)
795 const_iv (O_RDONLY)
796 const_iv (O_WRONLY)
797 const_iv (O_RDWR)
798 const_iv (O_CREAT)
799 const_iv (O_TRUNC)
800 const_iv (O_EXCL)
801 const_iv (O_APPEND)
802
803 const_iv (O_ASYNC)
804 const_iv (O_DIRECT)
805 const_iv (O_NOATIME)
806
807 const_iv (O_CLOEXEC)
808 const_iv (O_NOCTTY)
809 const_iv (O_NOFOLLOW)
810 const_iv (O_NONBLOCK)
811 const_iv (O_EXEC)
812 const_iv (O_SEARCH)
813 const_iv (O_DIRECTORY)
814 const_iv (O_DSYNC)
815 const_iv (O_RSYNC)
816 const_iv (O_SYNC)
817 const_iv (O_TTY_INIT)
818
819 const_iv (S_IFIFO)
820 const_iv (S_IFCHR)
821 const_iv (S_IFBLK)
822 const_iv (S_IFLNK)
823 const_iv (S_IFREG)
824 const_iv (S_IFDIR)
825 const_iv (S_IFWHT)
826 const_iv (S_IFSOCK)
827 const_iv (S_IFMT)
828
829 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
830 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
831 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
832 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
833 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
834 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
835
836 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
837 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
838 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
839 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
840 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
841
842 const_iv (ST_RDONLY)
843 const_iv (ST_NOSUID)
844 const_iv (ST_NODEV)
845 const_iv (ST_NOEXEC)
846 const_iv (ST_SYNCHRONOUS)
847 const_iv (ST_MANDLOCK)
848 const_iv (ST_WRITE)
849 const_iv (ST_APPEND)
850 const_iv (ST_IMMUTABLE)
851 const_iv (ST_NOATIME)
852 const_iv (ST_NODIRATIME)
853 const_iv (ST_RELATIME)
854
855 const_iv (PROT_NONE)
856 const_iv (PROT_EXEC)
857 const_iv (PROT_READ)
858 const_iv (PROT_WRITE)
859
860 /*const_iv (MAP_FIXED)*/
861 const_iv (MAP_PRIVATE)
862 const_iv (MAP_SHARED)
863 const_iv (MAP_ANONYMOUS)
864
865 /* linuxish */
866 const_iv (MAP_HUGETLB)
867 const_iv (MAP_LOCKED)
868 const_iv (MAP_NORESERVE)
869 const_iv (MAP_POPULATE)
870 const_iv (MAP_NONBLOCK)
871
872 const_eio (MCL_FUTURE)
873 const_eio (MCL_CURRENT)
874
875 const_eio (MS_ASYNC)
876 const_eio (MS_INVALIDATE)
877 const_eio (MS_SYNC)
878
879 const_eio (MT_MODIFY)
880
881 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
882 const_eio (SYNC_FILE_RANGE_WRITE)
883 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
884
885 const_eio (FALLOC_FL_KEEP_SIZE)
886
887 const_eio (READDIR_DENTS)
888 const_eio (READDIR_DIRS_FIRST)
889 const_eio (READDIR_STAT_ORDER)
890 const_eio (READDIR_FOUND_UNKNOWN)
891
892 const_eio (DT_UNKNOWN)
893 const_eio (DT_FIFO)
894 const_eio (DT_CHR)
895 const_eio (DT_DIR)
896 const_eio (DT_BLK)
897 const_eio (DT_REG)
898 const_eio (DT_LNK)
899 const_eio (DT_SOCK)
900 const_eio (DT_WHT)
901 };
902
1122 HV *stash = gv_stashpv ("IO::AIO", 1); 903 aio_stash = gv_stashpv ("IO::AIO" , 1);
1123 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 904 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1124 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 905 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1125 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1126 906
907 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
908 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
909
910 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
911
1127 create_pipe (); 912 create_respipe ();
1128 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1129}
1130 913
1131void 914 if (eio_init (want_poll, done_poll) < 0)
1132min_parallel (int nthreads) 915 croak ("IO::AIO: unable to initialise eio library");
1133 PROTOTYPE: $
1134 916
1135void 917 /* atfork child called in fifo order, so before eio's handler */
1136max_parallel (int nthreads) 918 X_THREAD_ATFORK (0, 0, atfork_child);
1137 PROTOTYPE: $ 919}
1138 920
1139int 921void
1140max_outstanding (int maxreqs) 922max_poll_reqs (unsigned int nreqs)
1141 PROTOTYPE: $ 923 PROTOTYPE: $
1142 CODE: 924 CODE:
1143 RETVAL = max_outstanding; 925 eio_set_max_poll_reqs (nreqs);
926
927void
928max_poll_time (double nseconds)
929 PROTOTYPE: $
930 CODE:
931 eio_set_max_poll_time (nseconds);
932
933void
934min_parallel (unsigned int nthreads)
935 PROTOTYPE: $
936 CODE:
937 eio_set_min_parallel (nthreads);
938
939void
940max_parallel (unsigned int nthreads)
941 PROTOTYPE: $
942 CODE:
943 eio_set_max_parallel (nthreads);
944
945void
946max_idle (unsigned int nthreads)
947 PROTOTYPE: $
948 CODE:
949 eio_set_max_idle (nthreads);
950
951void
952idle_timeout (unsigned int seconds)
953 PROTOTYPE: $
954 CODE:
955 eio_set_idle_timeout (seconds);
956
957void
958max_outstanding (unsigned int maxreqs)
959 PROTOTYPE: $
960 CODE:
1144 max_outstanding = maxreqs; 961 max_outstanding = maxreqs;
1145 OUTPUT:
1146 RETVAL
1147 962
1148void 963void
1149aio_open (pathname,flags,mode,callback=&PL_sv_undef) 964aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1150 SV * pathname
1151 int flags
1152 int mode
1153 SV * callback
1154 PROTOTYPE: $$$;$
1155 PPCODE: 965 PPCODE:
1156{ 966{
1157 dREQ; 967 dREQ;
1158 968
1159 req->type = REQ_OPEN; 969 req->type = EIO_OPEN;
1160 req->data = newSVsv (pathname); 970 req->sv1 = newSVsv (pathname);
1161 req->dataptr = SvPVbyte_nolen (req->data); 971 req->ptr1 = SvPVbyte_nolen (req->sv1);
1162 req->fd = flags; 972 req->int1 = flags;
1163 req->mode = mode; 973 req->int2 = mode;
1164 974
1165 REQ_SEND; 975 REQ_SEND;
1166} 976}
1167 977
1168void 978void
1169aio_close (fh,callback=&PL_sv_undef) 979aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1170 SV * fh
1171 SV * callback
1172 PROTOTYPE: $;$
1173 ALIAS: 980 ALIAS:
1174 aio_close = REQ_CLOSE
1175 aio_fsync = REQ_FSYNC 981 aio_fsync = EIO_FSYNC
1176 aio_fdatasync = REQ_FDATASYNC 982 aio_fdatasync = EIO_FDATASYNC
1177 PPCODE: 983 PPCODE:
1178{ 984{
985 int fd = s_fileno_croak (fh, 0);
1179 dREQ; 986 dREQ;
1180 987
1181 req->type = ix; 988 req->type = ix;
1182 req->fh = newSVsv (fh); 989 req->sv1 = newSVsv (fh);
1183 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 990 req->int1 = fd;
1184 991
1185 REQ_SEND (req); 992 REQ_SEND (req);
1186} 993}
1187 994
1188void 995void
996aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
997 PPCODE:
998{
999 int fd = s_fileno_croak (fh, 0);
1000 dREQ;
1001
1002 req->type = EIO_SYNC_FILE_RANGE;
1003 req->sv1 = newSVsv (fh);
1004 req->int1 = fd;
1005 req->offs = offset;
1006 req->size = nbytes;
1007 req->int2 = flags;
1008
1009 REQ_SEND (req);
1010}
1011
1012void
1013aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1014 PPCODE:
1015{
1016 int fd = s_fileno_croak (fh, 0);
1017 dREQ;
1018
1019 req->type = EIO_FALLOCATE;
1020 req->sv1 = newSVsv (fh);
1021 req->int1 = fd;
1022 req->int2 = mode;
1023 req->offs = offset;
1024 req->size = len;
1025
1026 REQ_SEND (req);
1027}
1028
1029void
1030aio_close (SV *fh, SV *callback=&PL_sv_undef)
1031 PPCODE:
1032{
1033 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1034 int fd = s_fileno_croak (fh, 0);
1035 dREQ;
1036
1037 if (close_pipe < 0)
1038 {
1039 int pipefd [2];
1040
1041 if (pipe (pipefd) < 0
1042 || close (pipefd [1]) < 0
1043 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1044 abort (); /*D*/
1045
1046 close_pipe = pipefd [0];
1047 }
1048
1049 req->type = EIO_DUP2;
1050 req->int1 = close_pipe;
1051 req->sv2 = newSVsv (fh);
1052 req->int2 = fd;
1053
1054 REQ_SEND (req);
1055}
1056
1057void
1189aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1058aio_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: 1059 ALIAS:
1197 aio_read = REQ_READ 1060 aio_read = EIO_READ
1198 aio_write = REQ_WRITE 1061 aio_write = EIO_WRITE
1199 PROTOTYPE: $$$$$;$
1200 PPCODE: 1062 PPCODE:
1201{ 1063{
1202 aio_req req;
1203 STRLEN svlen; 1064 STRLEN svlen;
1065 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1204 char *svptr = SvPVbyte (data, svlen); 1066 char *svptr = SvPVbyte (data, svlen);
1205 1067 UV len = SvUV (length);
1206 SvUPGRADE (data, SVt_PV);
1207 SvPOK_on (data);
1208 1068
1209 if (dataoffset < 0) 1069 if (dataoffset < 0)
1210 dataoffset += svlen; 1070 dataoffset += svlen;
1211 1071
1212 if (dataoffset < 0 || dataoffset > svlen) 1072 if (dataoffset < 0 || dataoffset > svlen)
1213 croak ("data offset outside of string"); 1073 croak ("dataoffset outside of data scalar");
1214 1074
1215 if (ix == REQ_WRITE) 1075 if (ix == EIO_WRITE)
1216 { 1076 {
1217 /* write: check length and adjust. */ 1077 /* write: check length and adjust. */
1218 if (length < 0 || length + dataoffset > svlen) 1078 if (!SvOK (length) || len + dataoffset > svlen)
1219 length = svlen - dataoffset; 1079 len = svlen - dataoffset;
1220 } 1080 }
1221 else 1081 else
1222 { 1082 {
1223 /* read: grow scalar as necessary */ 1083 /* read: check type and grow scalar as necessary */
1084 SvUPGRADE (data, SVt_PV);
1224 svptr = SvGROW (data, length + dataoffset); 1085 svptr = SvGROW (data, len + dataoffset + 1);
1225 } 1086 }
1226
1227 if (length < 0)
1228 croak ("length must not be negative");
1229 1087
1230 { 1088 {
1231 dREQ; 1089 dREQ;
1232 1090
1233 req->type = ix; 1091 req->type = ix;
1234 req->fh = newSVsv (fh); 1092 req->sv1 = newSVsv (fh);
1235 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1093 req->int1 = fd;
1236 : IoOFP (sv_2io (fh))); 1094 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237 req->offset = offset; 1095 req->size = len;
1238 req->length = length;
1239 req->data = SvREFCNT_inc (data); 1096 req->sv2 = SvREFCNT_inc (data);
1240 req->dataptr = (char *)svptr + dataoffset; 1097 req->ptr2 = (char *)svptr + dataoffset;
1098 req->stroffset = dataoffset;
1241 1099
1242 if (!SvREADONLY (data)) 1100 if (!SvREADONLY (data))
1243 { 1101 {
1244 SvREADONLY_on (data); 1102 SvREADONLY_on (data);
1245 req->data2ptr = (void *)data; 1103 req->flags |= FLAG_SV2_RO_OFF;
1246 } 1104 }
1247 1105
1248 REQ_SEND; 1106 REQ_SEND;
1249 } 1107 }
1250} 1108}
1251 1109
1252void 1110void
1253aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1111aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1254 SV * out_fh 1112 ALIAS:
1255 SV * in_fh 1113 aio_readlink = EIO_READLINK
1256 UV in_offset 1114 aio_realpath = EIO_REALPATH
1257 UV length
1258 SV * callback
1259 PROTOTYPE: $$$$;$
1260 PPCODE: 1115 PPCODE:
1261{ 1116{
1117 SV *data;
1118 dREQ;
1119
1120 req->type = ix;
1121 req->sv1 = newSVsv (path);
1122 req->ptr1 = SvPVbyte_nolen (req->sv1);
1123
1124 REQ_SEND;
1125}
1126
1127void
1128aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1129 PPCODE:
1130{
1131 int ifd = s_fileno_croak (in_fh , 0);
1132 int ofd = s_fileno_croak (out_fh, 1);
1262 dREQ; 1133 dREQ;
1263 1134
1264 req->type = REQ_SENDFILE; 1135 req->type = EIO_SENDFILE;
1265 req->fh = newSVsv (out_fh); 1136 req->sv1 = newSVsv (out_fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1137 req->int1 = ofd;
1267 req->fh2 = newSVsv (in_fh); 1138 req->sv2 = newSVsv (in_fh);
1268 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1139 req->int2 = ifd;
1269 req->offset = in_offset; 1140 req->offs = in_offset;
1270 req->length = length; 1141 req->size = length;
1271 1142
1272 REQ_SEND; 1143 REQ_SEND;
1273} 1144}
1274 1145
1275void 1146void
1276aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1147aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1277 SV * fh
1278 UV offset
1279 IV length
1280 SV * callback
1281 PROTOTYPE: $$$;$
1282 PPCODE: 1148 PPCODE:
1283{ 1149{
1150 int fd = s_fileno_croak (fh, 0);
1284 dREQ; 1151 dREQ;
1285 1152
1286 req->type = REQ_READAHEAD; 1153 req->type = EIO_READAHEAD;
1287 req->fh = newSVsv (fh); 1154 req->sv1 = newSVsv (fh);
1288 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1155 req->int1 = fd;
1289 req->offset = offset; 1156 req->offs = offset;
1290 req->length = length; 1157 req->size = length;
1291 1158
1292 REQ_SEND; 1159 REQ_SEND;
1293} 1160}
1294 1161
1295void 1162void
1296aio_stat (fh_or_path,callback=&PL_sv_undef) 1163aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1297 SV * fh_or_path
1298 SV * callback
1299 ALIAS: 1164 ALIAS:
1300 aio_stat = REQ_STAT 1165 aio_stat = EIO_STAT
1301 aio_lstat = REQ_LSTAT 1166 aio_lstat = EIO_LSTAT
1167 aio_statvfs = EIO_STATVFS
1302 PPCODE: 1168 PPCODE:
1303{ 1169{
1304 dREQ; 1170 dREQ;
1305 1171
1306 New (0, req->statdata, 1, Stat_t); 1172 req->sv1 = newSVsv (fh_or_path);
1307 if (!req->statdata)
1308 {
1309 req_free (req);
1310 croak ("out of memory during aio_req->statdata allocation");
1311 }
1312 1173
1313 if (SvPOK (fh_or_path)) 1174 if (SvPOK (req->sv1))
1314 { 1175 {
1315 req->type = ix; 1176 req->type = ix;
1316 req->data = newSVsv (fh_or_path);
1317 req->dataptr = SvPVbyte_nolen (req->data); 1177 req->ptr1 = SvPVbyte_nolen (req->sv1);
1318 } 1178 }
1319 else 1179 else
1320 { 1180 {
1321 req->type = REQ_FSTAT; 1181 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1322 req->fh = newSVsv (fh_or_path);
1323 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1182 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1324 } 1183 }
1325 1184
1326 REQ_SEND; 1185 REQ_SEND;
1327} 1186}
1328 1187
1188UV
1189major (UV dev)
1190 ALIAS:
1191 minor = 1
1192 CODE:
1193 RETVAL = ix ? major (dev) : minor (dev);
1194 OUTPUT:
1195 RETVAL
1196
1197UV
1198makedev (UV maj, UV min)
1199 CODE:
1200 RETVAL = makedev (maj, min);
1201 OUTPUT:
1202 RETVAL
1203
1329void 1204void
1205aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1206 PPCODE:
1207{
1208 dREQ;
1209
1210 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1211 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1212 req->sv1 = newSVsv (fh_or_path);
1213
1214 if (SvPOK (req->sv1))
1215 {
1216 req->type = EIO_UTIME;
1217 req->ptr1 = SvPVbyte_nolen (req->sv1);
1218 }
1219 else
1220 {
1221 req->type = EIO_FUTIME;
1222 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1223 }
1224
1225 REQ_SEND;
1226}
1227
1228void
1229aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1230 PPCODE:
1231{
1232 dREQ;
1233
1234 req->sv1 = newSVsv (fh_or_path);
1235 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1236
1237 if (SvPOK (req->sv1))
1238 {
1239 req->type = EIO_TRUNCATE;
1240 req->ptr1 = SvPVbyte_nolen (req->sv1);
1241 }
1242 else
1243 {
1244 req->type = EIO_FTRUNCATE;
1245 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1246 }
1247
1248 REQ_SEND;
1249}
1250
1251void
1252aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1253 ALIAS:
1254 aio_chmod = EIO_CHMOD
1255 aio_mkdir = EIO_MKDIR
1256 PPCODE:
1257{
1258 dREQ;
1259
1260 req->int2 = mode;
1261 req->sv1 = newSVsv (fh_or_path);
1262
1263 if (SvPOK (req->sv1))
1264 {
1265 req->type = ix;
1266 req->ptr1 = SvPVbyte_nolen (req->sv1);
1267 }
1268 else
1269 {
1270 req->type = EIO_FCHMOD;
1271 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1272 }
1273
1274 REQ_SEND;
1275}
1276
1277void
1278aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1279 PPCODE:
1280{
1281 dREQ;
1282
1283 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1284 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1285 req->sv1 = newSVsv (fh_or_path);
1286
1287 if (SvPOK (req->sv1))
1288 {
1289 req->type = EIO_CHOWN;
1290 req->ptr1 = SvPVbyte_nolen (req->sv1);
1291 }
1292 else
1293 {
1294 req->type = EIO_FCHOWN;
1295 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1296 }
1297
1298 REQ_SEND;
1299}
1300
1301void
1302aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1303 PPCODE:
1304{
1305 dREQ;
1306
1307 req->type = EIO_READDIR;
1308 req->sv1 = newSVsv (pathname);
1309 req->ptr1 = SvPVbyte_nolen (req->sv1);
1310 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1311
1312 if (flags & EIO_READDIR_DENTS)
1313 req->int1 |= EIO_READDIR_CUSTOM2;
1314
1315 REQ_SEND;
1316}
1317
1318void
1330aio_unlink (pathname,callback=&PL_sv_undef) 1319aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331 SV * pathname
1332 SV * callback
1333 ALIAS: 1320 ALIAS:
1334 aio_unlink = REQ_UNLINK 1321 aio_unlink = EIO_UNLINK
1335 aio_rmdir = REQ_RMDIR 1322 aio_rmdir = EIO_RMDIR
1336 aio_readdir = REQ_READDIR 1323 aio_readdir = EIO_READDIR
1337 PPCODE: 1324 PPCODE:
1338{ 1325{
1339 dREQ; 1326 dREQ;
1340 1327
1341 req->type = ix; 1328 req->type = ix;
1342 req->data = newSVsv (pathname); 1329 req->sv1 = newSVsv (pathname);
1343 req->dataptr = SvPVbyte_nolen (req->data); 1330 req->ptr1 = SvPVbyte_nolen (req->sv1);
1344 1331
1345 REQ_SEND; 1332 REQ_SEND;
1346} 1333}
1347 1334
1348void 1335void
1349aio_link (oldpath,newpath,callback=&PL_sv_undef) 1336aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1350 SV * oldpath
1351 SV * newpath
1352 SV * callback
1353 ALIAS: 1337 ALIAS:
1354 aio_link = REQ_LINK 1338 aio_link = EIO_LINK
1355 aio_symlink = REQ_SYMLINK 1339 aio_symlink = EIO_SYMLINK
1356 aio_rename = REQ_RENAME 1340 aio_rename = EIO_RENAME
1357 PPCODE: 1341 PPCODE:
1358{ 1342{
1359 dREQ; 1343 dREQ;
1360 1344
1361 req->type = ix; 1345 req->type = ix;
1362 req->fh = newSVsv (oldpath); 1346 req->sv1 = newSVsv (oldpath);
1363 req->data2ptr = SvPVbyte_nolen (req->fh); 1347 req->ptr1 = SvPVbyte_nolen (req->sv1);
1364 req->data = newSVsv (newpath); 1348 req->sv2 = newSVsv (newpath);
1365 req->dataptr = SvPVbyte_nolen (req->data); 1349 req->ptr2 = SvPVbyte_nolen (req->sv2);
1366 1350
1367 REQ_SEND; 1351 REQ_SEND;
1368} 1352}
1369 1353
1370void 1354void
1371aio_busy (delay,callback=&PL_sv_undef) 1355aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1372 double delay
1373 SV * callback
1374 PPCODE: 1356 PPCODE:
1375{ 1357{
1376 dREQ; 1358 dREQ;
1377 1359
1378 req->type = REQ_BUSY; 1360 req->type = EIO_MKNOD;
1379 req->fd = delay < 0. ? 0 : delay; 1361 req->sv1 = newSVsv (pathname);
1380 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1362 req->ptr1 = SvPVbyte_nolen (req->sv1);
1381 1363 req->int2 = (mode_t)mode;
1364 req->offs = dev;
1365
1382 REQ_SEND; 1366 REQ_SEND;
1383} 1367}
1384 1368
1385void 1369void
1386aio_group (callback=&PL_sv_undef) 1370aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1387 SV * callback 1371 ALIAS:
1388 PROTOTYPE: ;$ 1372 aio_mtouch = EIO_MTOUCH
1373 aio_msync = EIO_MSYNC
1389 PPCODE: 1374 PPCODE:
1390{ 1375{
1376 STRLEN svlen;
1377 char *svptr = SvPVbyte (data, svlen);
1378 UV len = SvUV (length);
1379
1380 if (offset < 0)
1381 offset += svlen;
1382
1383 if (offset < 0 || offset > svlen)
1384 croak ("offset outside of scalar");
1385
1386 if (!SvOK (length) || len + offset > svlen)
1387 len = svlen - offset;
1388
1389 {
1390 dREQ;
1391
1392 req->type = ix;
1393 req->sv2 = SvREFCNT_inc (data);
1394 req->ptr2 = (char *)svptr + offset;
1395 req->size = len;
1396 req->int1 = flags;
1397
1398 REQ_SEND;
1399 }
1400}
1401
1402void
1403aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1404 PPCODE:
1405{
1406 STRLEN svlen;
1407 char *svptr = SvPVbyte (data, svlen);
1408 UV len = SvUV (length);
1409
1410 if (offset < 0)
1411 offset += svlen;
1412
1413 if (offset < 0 || offset > svlen)
1414 croak ("offset outside of scalar");
1415
1416 if (!SvOK (length) || len + offset > svlen)
1417 len = svlen - offset;
1418
1419 {
1420 dREQ;
1421
1422 req->type = EIO_MLOCK;
1423 req->sv2 = SvREFCNT_inc (data);
1424 req->ptr2 = (char *)svptr + offset;
1425 req->size = len;
1426
1427 REQ_SEND;
1428 }
1429}
1430
1431void
1432aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1433 PPCODE:
1434{
1435 dREQ;
1436
1437 req->type = EIO_MLOCKALL;
1438 req->int1 = flags;
1439
1440 REQ_SEND;
1441}
1442
1443void
1444aio_busy (double delay, SV *callback=&PL_sv_undef)
1445 PPCODE:
1446{
1391 dREQ; 1447 dREQ;
1392 1448
1449 req->type = EIO_BUSY;
1450 req->nv1 = delay < 0. ? 0. : delay;
1451
1452 REQ_SEND;
1453}
1454
1455void
1456aio_group (SV *callback=&PL_sv_undef)
1457 PPCODE:
1458{
1459 dREQ;
1460
1393 req->type = REQ_GROUP; 1461 req->type = EIO_GROUP;
1462
1394 req_send (req); 1463 req_submit (req);
1395
1396 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1464 XPUSHs (req_sv (req, aio_grp_stash));
1397} 1465}
1398 1466
1399void 1467void
1400aio_nop (callback=&PL_sv_undef) 1468aio_nop (SV *callback=&PL_sv_undef)
1401 SV * callback 1469 ALIAS:
1470 aio_nop = EIO_NOP
1471 aio_sync = EIO_SYNC
1402 PPCODE: 1472 PPCODE:
1403{ 1473{
1404 dREQ; 1474 dREQ;
1405 1475
1406 req->type = REQ_NOP; 1476 req->type = ix;
1407 1477
1408 REQ_SEND; 1478 REQ_SEND;
1409} 1479}
1410 1480
1411int 1481int
1412aioreq_pri (int pri = 0) 1482aioreq_pri (int pri = 0)
1413 PROTOTYPE: ;$
1414 CODE: 1483 CODE:
1415 RETVAL = next_pri - PRI_BIAS; 1484 RETVAL = next_pri;
1416 if (items > 0) 1485 if (items > 0)
1417 { 1486 {
1418 if (pri < PRI_MIN) pri = PRI_MIN; 1487 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1419 if (pri > PRI_MAX) pri = PRI_MAX; 1488 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1420 next_pri = pri + PRI_BIAS; 1489 next_pri = pri;
1421 } 1490 }
1422 OUTPUT: 1491 OUTPUT:
1423 RETVAL 1492 RETVAL
1424 1493
1425void 1494void
1426aioreq_nice (int nice = 0) 1495aioreq_nice (int nice = 0)
1427 CODE: 1496 CODE:
1428 nice = next_pri - nice; 1497 nice = next_pri - nice;
1429 if (nice < PRI_MIN) nice = PRI_MIN; 1498 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1430 if (nice > PRI_MAX) nice = PRI_MAX; 1499 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1431 next_pri = nice + PRI_BIAS; 1500 next_pri = nice;
1432 1501
1433void 1502void
1434flush () 1503flush ()
1435 PROTOTYPE:
1436 CODE: 1504 CODE:
1437 while (nreqs) 1505 while (eio_nreqs ())
1438 { 1506 {
1439 poll_wait (); 1507 poll_wait ();
1440 poll_cb (0); 1508 poll_cb ();
1441 } 1509 }
1442 1510
1443void
1444poll()
1445 PROTOTYPE:
1446 CODE:
1447 if (nreqs)
1448 {
1449 poll_wait ();
1450 poll_cb (0);
1451 }
1452
1453int 1511int
1454poll_fileno() 1512poll ()
1455 PROTOTYPE:
1456 CODE: 1513 CODE:
1457 RETVAL = respipe [0]; 1514 poll_wait ();
1515 RETVAL = poll_cb ();
1458 OUTPUT: 1516 OUTPUT:
1459 RETVAL 1517 RETVAL
1460 1518
1461int 1519int
1462poll_cb(...) 1520poll_fileno ()
1463 PROTOTYPE:
1464 CODE: 1521 CODE:
1465 RETVAL = poll_cb (0); 1522 RETVAL = s_epipe_fd (&respipe);
1466 OUTPUT: 1523 OUTPUT:
1467 RETVAL 1524 RETVAL
1468 1525
1469int 1526int
1470poll_some(int max = 0) 1527poll_cb (...)
1471 PROTOTYPE: $ 1528 PROTOTYPE:
1472 CODE: 1529 CODE:
1473 RETVAL = poll_cb (max); 1530 RETVAL = poll_cb ();
1474 OUTPUT: 1531 OUTPUT:
1475 RETVAL 1532 RETVAL
1476 1533
1477void 1534void
1478poll_wait() 1535poll_wait ()
1479 PROTOTYPE:
1480 CODE: 1536 CODE:
1481 if (nreqs)
1482 poll_wait (); 1537 poll_wait ();
1483 1538
1484int 1539int
1485nreqs() 1540nreqs ()
1486 PROTOTYPE:
1487 CODE: 1541 CODE:
1488 RETVAL = nreqs; 1542 RETVAL = eio_nreqs ();
1489 OUTPUT: 1543 OUTPUT:
1490 RETVAL 1544 RETVAL
1491 1545
1492int 1546int
1493nready() 1547nready ()
1494 PROTOTYPE:
1495 CODE: 1548 CODE:
1496 if (WORDREAD_UNSAFE) LOCK (reqlock);
1497 RETVAL = nready; 1549 RETVAL = eio_nready ();
1498 if (WORDREAD_UNSAFE) UNLOCK (reqlock);
1499 OUTPUT: 1550 OUTPUT:
1500 RETVAL 1551 RETVAL
1501 1552
1502int 1553int
1503npending() 1554npending ()
1504 PROTOTYPE:
1505 CODE: 1555 CODE:
1506 if (WORDREAD_UNSAFE) LOCK (reslock);
1507 RETVAL = npending; 1556 RETVAL = eio_npending ();
1508 if (WORDREAD_UNSAFE) UNLOCK (reslock);
1509 OUTPUT: 1557 OUTPUT:
1510 RETVAL 1558 RETVAL
1511 1559
1560int
1561nthreads ()
1562 CODE:
1563 RETVAL = eio_nthreads ();
1564 OUTPUT:
1565 RETVAL
1566
1567int
1568fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1569 CODE:
1570 RETVAL = posix_fadvise (fh, offset, length, advice);
1571 OUTPUT:
1572 RETVAL
1573
1574ssize_t
1575sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1576 CODE:
1577 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1578 OUTPUT:
1579 RETVAL
1580
1581void
1582mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1583 PPCODE:
1584 sv_unmagic (scalar, MMAP_MAGIC);
1585{
1586 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1587 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1588 if (addr == (void *)-1)
1589 XSRETURN_NO;
1590
1591 sv_force_normal (scalar);
1592
1593 /* we store the length in mg_obj, as namlen is I32 :/ */
1594 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1595 ->mg_obj = (SV *)length;
1596
1597 SvUPGRADE (scalar, SVt_PV); /* nop... */
1598
1599 if (!(prot & PROT_WRITE))
1600 SvREADONLY_on (scalar);
1601
1602 if (SvLEN (scalar))
1603 Safefree (SvPVX (scalar));
1604
1605 SvPVX (scalar) = (char *)addr;
1606 SvCUR_set (scalar, length);
1607 SvLEN_set (scalar, 0);
1608 SvPOK_only (scalar);
1609
1610 XSRETURN_YES;
1611}
1612
1613void
1614munmap (SV *scalar)
1615 CODE:
1616 sv_unmagic (scalar, MMAP_MAGIC);
1617
1618int
1619madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1620 ALIAS:
1621 mprotect = 1
1622 CODE:
1623{
1624 STRLEN svlen;
1625 void *addr = SvPVbyte (scalar, svlen);
1626 size_t len = SvUV (length);
1627
1628 if (offset < 0)
1629 offset += svlen;
1630
1631 if (offset < 0 || offset > svlen)
1632 croak ("offset outside of scalar");
1633
1634 if (!SvOK (length) || len + offset > svlen)
1635 len = svlen - offset;
1636
1637 addr = (void *)(((intptr_t)addr) + offset);
1638 eio_page_align (&addr, &len);
1639
1640 switch (ix)
1641 {
1642 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1643 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1644 }
1645}
1646 OUTPUT:
1647 RETVAL
1648
1649int
1650munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1651 CODE:
1652{
1653 STRLEN svlen;
1654 void *addr = SvPVbyte (scalar, svlen);
1655 size_t len = SvUV (length);
1656
1657 if (offset < 0)
1658 offset += svlen;
1659
1660 if (offset < 0 || offset > svlen)
1661 croak ("offset outside of scalar");
1662
1663 if (!SvOK (length) || len + offset > svlen)
1664 len = svlen - offset;
1665
1666 addr = (void *)(((intptr_t)addr) + offset);
1667 eio_page_align (&addr, &len);
1668#if _POSIX_MEMLOCK_RANGE
1669 RETVAL = munlock (addr, len);
1670#else
1671 RETVAL = ((errno = ENOSYS), -1);
1672#endif
1673}
1674 OUTPUT:
1675 RETVAL
1676
1677int
1678munlockall ()
1679 CODE:
1680#if _POSIX_MEMLOCK
1681 munlockall ();
1682#else
1683 RETVAL = -1;
1684 errno = ENOSYS;
1685#endif
1686 OUTPUT:
1687 RETVAL
1688
1689void _on_next_submit (SV *cb)
1690 CODE:
1691 SvREFCNT_dec (on_next_submit);
1692 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1693
1512PROTOTYPES: DISABLE 1694PROTOTYPES: DISABLE
1513 1695
1514MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1696MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1515 1697
1516void 1698void
1517cancel (aio_req_ornot req) 1699cancel (aio_req_ornot req)
1518 CODE: 1700 CODE:
1519 req_cancel (req); 1701 eio_cancel (req);
1520 1702
1521void 1703void
1522cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1704cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1523 CODE: 1705 PPCODE:
1706{
1707 if (GIMME_V != G_VOID)
1708 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1709
1710 if (items > 1)
1711 {
1712 SV *cb_cv =get_cb (callback);
1713
1524 SvREFCNT_dec (req->callback); 1714 SvREFCNT_dec (req->callback);
1525 req->callback = newSVsv (callback); 1715 req->callback = SvREFCNT_inc (cb_cv);
1716 }
1717}
1526 1718
1527MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1719MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1528 1720
1529void 1721void
1530add (aio_req grp, ...) 1722add (aio_req grp, ...)
1531 PPCODE: 1723 PPCODE:
1532{ 1724{
1533 int i; 1725 int i;
1534 aio_req req;
1535 1726
1536 if (grp->fd == 2) 1727 if (grp->int1 == 2)
1537 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1728 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1538 1729
1539 for (i = 1; i < items; ++i ) 1730 for (i = 1; i < items; ++i )
1540 { 1731 {
1732 aio_req req;
1733
1541 if (GIMME_V != G_VOID) 1734 if (GIMME_V != G_VOID)
1542 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1735 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1543 1736
1544 req = SvAIO_REQ (ST (i)); 1737 req = SvAIO_REQ (ST (i));
1545 1738
1546 if (req) 1739 if (req)
1547 { 1740 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 } 1741 }
1560} 1742}
1561 1743
1562void 1744void
1563cancel_subs (aio_req_ornot req) 1745cancel_subs (aio_req_ornot req)
1572 AV *av; 1754 AV *av;
1573 1755
1574 grp->errorno = errno; 1756 grp->errorno = errno;
1575 1757
1576 av = newAV (); 1758 av = newAV ();
1759 av_extend (av, items - 1);
1577 1760
1578 for (i = 1; i < items; ++i ) 1761 for (i = 1; i < items; ++i )
1579 av_push (av, newSVsv (ST (i))); 1762 av_push (av, newSVsv (ST (i)));
1580 1763
1581 SvREFCNT_dec (grp->data); 1764 SvREFCNT_dec (grp->sv1);
1582 grp->data = (SV *)av; 1765 grp->sv1 = (SV *)av;
1583} 1766}
1584 1767
1585void 1768void
1586errno (aio_req grp, int errorno = errno) 1769errno (aio_req grp, int errorno = errno)
1587 CODE: 1770 CODE:
1588 grp->errorno = errorno; 1771 grp->errorno = errorno;
1589 1772
1590void 1773void
1591limit (aio_req grp, int limit) 1774limit (aio_req grp, int limit)
1592 CODE: 1775 CODE:
1593 grp->fd2 = limit; 1776 eio_grp_limit (grp, limit);
1594 aio_grp_feed (grp);
1595 1777
1596void 1778void
1597feed (aio_req grp, SV *callback=&PL_sv_undef) 1779feed (aio_req grp, SV *callback=&PL_sv_undef)
1598 CODE: 1780 CODE:
1599{ 1781{
1600 SvREFCNT_dec (grp->fh2); 1782 SvREFCNT_dec (grp->sv2);
1601 grp->fh2 = newSVsv (callback); 1783 grp->sv2 = newSVsv (callback);
1784 grp->feed = aio_grp_feed;
1602 1785
1603 if (grp->fd2 <= 0) 1786 if (grp->int2 <= 0)
1604 grp->fd2 = 2; 1787 grp->int2 = 2;
1605 1788
1606 aio_grp_feed (grp); 1789 eio_grp_limit (grp, grp->int2);
1607} 1790}
1608 1791

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