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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.171 by root, Wed Aug 4 17:16:19 2010 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
15 8
16#include "autoconf/config.h" 9#include "schmorp.h"
17
18#include <pthread.h>
19 10
20#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
21#include <errno.h> 13#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 14#include <sys/types.h>
25#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
26#include <limits.h> 17#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 18#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 19#include <sched.h>
31 20
32#if HAVE_SENDFILE 21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
33# if __linux
34# include <sys/sendfile.h> 22# include <sys/mman.h>
35# elif __freebsd 23#endif
36# include <sys/socket.h> 24
25/* perl namespace pollution */
26#undef VERSION
27
28#ifdef _WIN32
29
30# define EIO_STRUCT_DIRENT Direntry_t
31# undef malloc
32# undef free
33
34// perl overrides all those nice win32 functions
35# undef open
36# undef read
37# undef write
38# undef send
39# undef recv
40# undef stat
41# undef fstat
42# define lstat stat
43# undef truncate
44# undef ftruncate
45# undef open
46# undef close
47# undef unlink
48# undef rmdir
49# undef rename
50# undef lseek
51
52# define chown(a,b,c) (errno = ENOSYS, -1)
53# define fchown(a,b,c) (errno = ENOSYS, -1)
54# define fchmod(a,b) (errno = ENOSYS, -1)
55# define symlink(a,b) (errno = ENOSYS, -1)
56# define readlink(a,b,c) (errno = ENOSYS, -1)
57# define mknod(a,b,c) (errno = ENOSYS, -1)
58# define truncate(a,b) (errno = ENOSYS, -1)
59# define ftruncate(fd,o) chsize ((fd), (o))
60# define fsync(fd) _commit (fd)
61# define opendir(fd) (errno = ENOSYS, 0)
62# define readdir(fd) (errno = ENOSYS, -1)
63# define closedir(fd) (errno = ENOSYS, -1)
64# define mkdir(a,b) mkdir (a)
65
66#else
67
37# include <sys/uio.h> 68# include <sys/time.h>
38# elif __hpux
39# include <sys/socket.h>
40# elif __solaris /* not yet */
41# include <sys/sendfile.h> 69# include <sys/select.h>
70# include <unistd.h>
71# include <utime.h>
72# include <signal.h>
73# define EIO_STRUCT_DIRENT struct dirent
74
75#endif
76
77/* perl stupidly overrides readdir and maybe others */
78/* with thread-unsafe versions, imagine that :( */
79#undef readdir
80#undef opendir
81#undef closedir
82
83#define EIO_STRUCT_STAT Stat_t
84
85/* use NV for 32 bit perls as it allows larger offsets */
86#if IVSIZE >= 8
87# define VAL64 IV
88# define SvVAL64 SvIV
89# define newSVval64 newSViv
90#else
91# define VAL64 NV
92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
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
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/eio.h"
124
125#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif
129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0
131#endif
132#ifndef POSIX_FADV_RANDOM
133# define POSIX_FADV_RANDOM 0
134#endif
135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0
137#endif
138#ifndef POSIX_FADV_WILLNEED
139# define POSIX_FADV_WILLNEED 0
140#endif
141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#if _XOPEN_SOURCE < 600 || NO_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151# define NO_MADVISE 1
152#endif
153#ifndef POSIX_MADV_SEQUENTIAL
154# define POSIX_MADV_SEQUENTIAL 0
155#endif
156#ifndef POSIX_MADV_RANDOM
157# define POSIX_MADV_RANDOM 0
158#endif
159#ifndef POSIX_MADV_WILLNEED
160# define POSIX_MADV_WILLNEED 0
161#endif
162#ifndef POSIX_MADV_DONTNEED
163# define POSIX_MADV_DONTNEED 0
164#endif
165
166#if _XOPEN_SOURCE < 600 || NO_MADVISE
167# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168#endif
169
170#ifndef PROT_NONE
171# define PROT_NONE 0
172#endif
173#ifndef PROT_READ
174# define PROT_READ 0
175#endif
176#ifndef PROT_WRITE
177# define PROT_READ 0
178#endif
179#ifndef PROT_EXEC
180# define PROT_EXEC 0
181#endif
182
183#ifndef ST_NODEV
184# define ST_NODEV 0
185#endif
186#ifndef ST_NOEXEC
187# define ST_NOEXEC 0
188#endif
189#ifndef ST_SYNCHRONOUS
190# define ST_SYNCHRONOUS 0
191#endif
192#ifndef ST_MANDLOCK
193# define ST_MANDLOCK 0
194#endif
195#ifndef ST_WRITE
196# define ST_WRITE 0
197#endif
198#ifndef ST_APPEND
199# define ST_APPEND 0
200#endif
201#ifndef ST_IMMUTABLE
202# define ST_IMMUTABLE 0
203#endif
204#ifndef ST_NOATIME
205# define ST_NOATIME 0
206#endif
207#ifndef ST_NODIRATIME
208# define ST_NODIRATIME 0
209#endif
210#ifndef ST_RELATIME
211# define ST_RELATIME 0
212#endif
213
214#ifndef MCL_CURRENT
215# define MCL_CURRENT 0
216#endif
217#ifndef MCL_FUTURE
218# define MCL_FUTURE 0
219#endif
220
221#ifndef MAP_ANONYMOUS
222# ifdef MAP_ANON
223# define MAP_ANONYMOUS MAP_ANON
42# else 224# else
43# error sendfile support requested but not available 225# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 226# endif
45#endif 227#endif
46 228#ifndef MAP_HUGETLB
47/* used for struct dirent, AIX doesn't provide it */ 229# define MAP_HUGETLB 0
48#ifndef NAME_MAX
49# define NAME_MAX 4096
50#endif 230#endif
51 231#ifndef MAP_LOCKED
52#if __ia64 232# define MAP_LOCKED 0
53# define STACKSIZE 65536
54#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55# define STACKSIZE PTHREAD_STACK_MIN
56#else
57# define STACKSIZE 16384
58#endif 233#endif
234#ifndef MAP_NORESERVE
235# define MAP_NORESERVE 0
236#endif
237#ifndef MAP_POPULATE
238# define MAP_POPULATE 0
239#endif
240#ifndef MAP_NONBLOCK
241# define MAP_NONBLOCK 0
242#endif
59 243
60/* buffer size for various temporary buffers */ 244#ifndef PAGESIZE
61#define AIO_BUFSIZE 65536 245# define PAGESIZE sysconf (_SC_PAGESIZE)
246#endif
62 247
63#define dBUF \ 248static int req_invoke (eio_req *req);
64 char *aio_buf = malloc (AIO_BUFSIZE); \ 249#define EIO_FINISH(req) req_invoke (req)
65 if (!aio_buf) \ 250static void req_destroy (eio_req *grp);
66 return -1; 251#define EIO_DESTROY(req) req_destroy (req)
67
68#define fBUF free (aio_buf)
69 252
70enum { 253enum {
71 REQ_QUIT, 254 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
72 REQ_OPEN, REQ_CLOSE,
73 REQ_READ, REQ_WRITE, REQ_READAHEAD,
74 REQ_SENDFILE,
75 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
76 REQ_FSYNC, REQ_FDATASYNC,
77 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
78 REQ_READDIR,
79 REQ_LINK, REQ_SYMLINK,
80 REQ_GROUP, REQ_NOP,
81 REQ_BUSY,
82}; 255};
83 256
84#define AIO_REQ_KLASS "IO::AIO::REQ" 257#include "libeio/eio.c"
85#define AIO_GRP_KLASS "IO::AIO::GRP"
86 258
87typedef struct aio_cb
88{
89 struct aio_cb *volatile next;
90
91 SV *data, *callback;
92 SV *fh, *fh2;
93 void *dataptr, *data2ptr;
94 Stat_t *statdata;
95 off_t offset;
96 size_t length;
97 ssize_t result;
98
99 STRLEN dataoffset;
100 int type;
101 int fd, fd2;
102 int errorno;
103 mode_t mode; /* open */
104
105 unsigned char flags;
106 unsigned char pri;
107
108 SV *self; /* the perl counterpart of this request, if any */
109 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
110} aio_cb;
111
112enum {
113 FLAG_CANCELLED = 0x01,
114};
115
116typedef aio_cb *aio_req; 259typedef eio_req *aio_req;
117typedef aio_cb *aio_req_ornot; 260typedef eio_req *aio_req_ornot;
118 261
119enum { 262static SV *on_next_submit;
120 PRI_MIN = -4, 263static int next_pri = EIO_PRI_DEFAULT;
121 PRI_MAX = 4,
122
123 DEFAULT_PRI = 0,
124 PRI_BIAS = -PRI_MIN,
125 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
126};
127
128static int next_pri = DEFAULT_PRI + PRI_BIAS;
129
130static int started, wanted;
131static volatile int nreqs;
132static int max_outstanding = 1<<30; 264static int max_outstanding;
133static int respipe [2];
134 265
135#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 266static s_epipe respipe;
136# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
137#else
138# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
139#endif
140 267
141static pthread_mutex_t reslock = AIO_MUTEX_INIT; 268static void req_destroy (aio_req req);
142static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
143static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
144
145/*
146 * a somewhat faster data structure might be nice, but
147 * with 8 priorities this actually needs <20 insns
148 * per shift, the most expensive operation.
149 */
150typedef struct {
151 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
152 int size;
153} reqq;
154
155static reqq req_queue;
156static reqq res_queue;
157
158int reqq_push (reqq *q, aio_req req)
159{
160 int pri = req->pri;
161 req->next = 0;
162
163 if (q->qe[pri])
164 {
165 q->qe[pri]->next = req;
166 q->qe[pri] = req;
167 }
168 else
169 q->qe[pri] = q->qs[pri] = req;
170
171 return q->size++;
172}
173
174aio_req reqq_shift (reqq *q)
175{
176 int pri;
177
178 if (!q->size)
179 return 0;
180
181 --q->size;
182
183 for (pri = NUM_PRI; pri--; )
184 {
185 aio_req req = q->qs[pri];
186
187 if (req)
188 {
189 if (!(q->qs[pri] = req->next))
190 q->qe[pri] = 0;
191
192 return req;
193 }
194 }
195
196 abort ();
197}
198
199static void req_invoke (aio_req req); 269static void req_cancel (aio_req req);
200static void req_free (aio_req req); 270
271static void want_poll (void)
272{
273 /* write a dummy byte to the pipe so fh becomes ready */
274 s_epipe_signal (&respipe);
275}
276
277static void done_poll (void)
278{
279 /* read any signals sent by the worker threads */
280 s_epipe_drain (&respipe);
281}
201 282
202/* must be called at most once */ 283/* must be called at most once */
203static SV *req_sv (aio_req req, const char *klass) 284static SV *req_sv (aio_req req, HV *stash)
204{ 285{
205 if (!req->self) 286 if (!req->self)
206 { 287 {
207 req->self = (SV *)newHV (); 288 req->self = (SV *)newHV ();
208 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 289 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
209 } 290 }
210 291
211 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 292 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
212} 293}
213 294
214static aio_req SvAIO_REQ (SV *sv) 295static aio_req SvAIO_REQ (SV *sv)
215{ 296{
216 MAGIC *mg; 297 MAGIC *mg;
217 298
218 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 299 if (!SvROK (sv)
300 || (SvSTASH (SvRV (sv)) != aio_grp_stash
301 && SvSTASH (SvRV (sv)) != aio_req_stash
302 && !sv_derived_from (sv, "IO::AIO::REQ")))
219 croak ("object of class " AIO_REQ_KLASS " expected"); 303 croak ("object of class IO::AIO::REQ expected");
220 304
221 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 305 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
222 306
223 return mg ? (aio_req)mg->mg_ptr : 0; 307 return mg ? (aio_req)mg->mg_ptr : 0;
224} 308}
225 309
226static void aio_grp_feed (aio_req grp) 310static void aio_grp_feed (aio_req grp)
227{ 311{
228 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 312 if (grp->sv2 && SvOK (grp->sv2))
229 { 313 {
230 int old_len = grp->length;
231
232 if (grp->fh2 && SvOK (grp->fh2))
233 {
234 dSP; 314 dSP;
235 315
236 ENTER; 316 ENTER;
237 SAVETMPS; 317 SAVETMPS;
238 PUSHMARK (SP); 318 PUSHMARK (SP);
239 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 319 XPUSHs (req_sv (grp, aio_grp_stash));
240 PUTBACK; 320 PUTBACK;
241 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 321 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
242 SPAGAIN; 322 SPAGAIN;
243 FREETMPS; 323 FREETMPS;
244 LEAVE; 324 LEAVE;
245 }
246
247 /* stop if no progress has been made */
248 if (old_len == grp->length)
249 {
250 SvREFCNT_dec (grp->fh2);
251 grp->fh2 = 0;
252 break;
253 }
254 } 325 }
255} 326}
256 327
257static void aio_grp_dec (aio_req grp) 328static void req_submit (eio_req *req)
258{ 329{
259 --grp->length; 330 eio_submit (req);
260 331
261 /* call feeder, if applicable */ 332 if (expect_false (on_next_submit))
262 aio_grp_feed (grp);
263
264 /* finish, if done */
265 if (!grp->length && grp->fd)
266 { 333 {
267 req_invoke (grp); 334 dSP;
268 req_free (grp); 335 SV *cb = sv_2mortal (on_next_submit);
336
337 on_next_submit = 0;
338
339 PUSHMARK (SP);
340 PUTBACK;
341 call_sv (cb, G_DISCARD | G_EVAL);
269 } 342 }
270} 343}
271 344
272static void poll_wait () 345static int req_invoke (eio_req *req)
273{ 346{
274 fd_set rfd; 347 if (req->flags & FLAG_SV2_RO_OFF)
348 SvREADONLY_off (req->sv2);
275 349
276 while (nreqs) 350 if (!EIO_CANCELLED (req) && req->callback)
277 { 351 {
278 int size;
279#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
280 pthread_mutex_lock (&reslock);
281#endif
282 size = res_queue.size;
283#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
284 pthread_mutex_unlock (&reslock);
285#endif
286
287 if (size)
288 return;
289
290 FD_ZERO(&rfd);
291 FD_SET(respipe [0], &rfd);
292
293 select (respipe [0] + 1, &rfd, 0, 0, 0);
294 }
295}
296
297static void req_invoke (aio_req req)
298{
299 dSP; 352 dSP;
300 353 static SV *sv_result_cache; /* caches the result integer SV */
301 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 354 SV *sv_result;
302 {
303 errno = req->errorno;
304 355
305 ENTER; 356 ENTER;
306 SAVETMPS; 357 SAVETMPS;
307 PUSHMARK (SP); 358 PUSHMARK (SP);
308 EXTEND (SP, 1); 359 EXTEND (SP, 1);
309 360
361 /* do not recreate the result IV from scratch each time */
362 if (expect_true (sv_result_cache))
363 {
364 sv_result = sv_result_cache; sv_result_cache = 0;
365 SvIV_set (sv_result, req->result);
366 }
367 else
368 {
369 sv_result = newSViv (req->result);
370 SvREADONLY_on (sv_result);
371 }
372
310 switch (req->type) 373 switch (req->type)
311 { 374 {
312 case REQ_READDIR: 375 case EIO_READDIR:
313 { 376 {
314 SV *rv = &PL_sv_undef; 377 SV *rv = &PL_sv_undef;
315 378
316 if (req->result >= 0) 379 if (req->result >= 0)
317 { 380 {
381 int i;
318 char *buf = req->data2ptr; 382 char *names = (char *)req->ptr2;
383 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
319 AV *av = newAV (); 384 AV *av = newAV ();
320 385
321 while (req->result) 386 av_extend (av, req->result - 1);
387
388 for (i = 0; i < req->result; ++i)
322 { 389 {
390 if (req->int1 & EIO_READDIR_DENTS)
391 {
392 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
393
394 if (req->int1 & EIO_READDIR_CUSTOM2)
395 {
396 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
397 AV *avent = newAV ();
398
399 av_extend (avent, 2);
400
401 if (!sv_type [ent->type])
402 {
403 sv_type [ent->type] = newSViv (ent->type);
404 SvREADONLY_on (sv_type [ent->type]);
405 }
406
407 av_store (avent, 0, namesv);
408 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
409 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
410
411 av_store (av, i, newRV_noinc ((SV *)avent));
412 }
413 else
414 av_store (av, i, namesv);
415
416 ++ent;
417 }
418 else
419 {
323 SV *sv = newSVpv (buf, 0); 420 SV *name = newSVpv (names, 0);
324
325 av_push (av, sv); 421 av_store (av, i, name);
326 buf += SvCUR (sv) + 1; 422 names += SvCUR (name) + 1;
327 req->result--; 423 }
328 } 424 }
329 425
330 rv = sv_2mortal (newRV_noinc ((SV *)av)); 426 rv = sv_2mortal (newRV_noinc ((SV *)av));
331 } 427 }
332 428
333 PUSHs (rv); 429 PUSHs (rv);
430
431 if (req->int1 & EIO_READDIR_CUSTOM1)
432 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
334 } 433 }
335 break; 434 break;
336 435
337 case REQ_OPEN: 436 case EIO_OPEN:
338 { 437 {
339 /* convert fd to fh */ 438 /* convert fd to fh */
340 SV *fh; 439 SV *fh = &PL_sv_undef;
341 440
342 PUSHs (sv_2mortal (newSViv (req->result))); 441 if (req->result >= 0)
343 PUTBACK; 442 {
344 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 443 GV *gv = (GV *)sv_newmortal ();
345 SPAGAIN; 444 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
445 char sym [64];
446 int symlen;
447
448 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
449 gv_init (gv, aio_stash, sym, symlen, 0);
346 450
347 fh = SvREFCNT_inc (POPs); 451 symlen = snprintf (
452 sym,
453 sizeof (sym),
454 "%s&=%d",
455 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
456 (int)req->result
457 );
348 458
459 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
460 fh = (SV *)gv;
461 }
462
349 PUSHMARK (SP); 463 PUSHs (fh);
350 XPUSHs (sv_2mortal (fh));
351 } 464 }
352 break; 465 break;
353 466
467 case EIO_STATVFS:
468 case EIO_FSTATVFS:
469 {
470 SV *rv = &PL_sv_undef;
471
472 if (req->result >= 0)
473 {
474 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
475 HV *hv = newHV ();
476
477 rv = sv_2mortal (newRV_noinc ((SV *)hv));
478
479 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
480 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
481 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
482 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
483 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
484 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
485 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
486 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
487 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
488 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
489 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
490 }
491
492 PUSHs (rv);
493 }
494
495 break;
496
354 case REQ_GROUP: 497 case EIO_GROUP:
355 req->fd = 2; /* mark group as finished */ 498 req->int1 = 2; /* mark group as finished */
356 499
357 if (req->data) 500 if (req->sv1)
358 { 501 {
359 int i; 502 int i;
360 AV *av = (AV *)req->data; 503 AV *av = (AV *)req->sv1;
361 504
362 EXTEND (SP, AvFILL (av) + 1); 505 EXTEND (SP, AvFILL (av) + 1);
363 for (i = 0; i <= AvFILL (av); ++i) 506 for (i = 0; i <= AvFILL (av); ++i)
364 PUSHs (*av_fetch (av, i, 0)); 507 PUSHs (*av_fetch (av, i, 0));
365 } 508 }
366 break; 509 break;
367 510
368 case REQ_NOP: 511 case EIO_NOP:
369 case REQ_BUSY: 512 case EIO_BUSY:
370 break; 513 break;
371 514
515 case EIO_READLINK:
516 if (req->result > 0)
517 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
518 break;
519
520 case EIO_STAT:
521 case EIO_LSTAT:
522 case EIO_FSTAT:
523 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
524 PL_laststatval = req->result;
525 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
526 PUSHs (sv_result);
527 break;
528
529 case EIO_READ:
530 {
531 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
532 *SvEND (req->sv2) = 0;
533 SvPOK_only (req->sv2);
534 SvSETMAGIC (req->sv2);
535 PUSHs (sv_result);
536 }
537 break;
538
539 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
540 if (req->result > 0)
541 SvIV_set (sv_result, 0);
542 /* FALLTHROUGH */
543
372 default: 544 default:
373 PUSHs (sv_2mortal (newSViv (req->result))); 545 PUSHs (sv_result);
374 break; 546 break;
375 } 547 }
376 548
549 errno = req->errorno;
377 550
378 PUTBACK; 551 PUTBACK;
379 call_sv (req->callback, G_VOID | G_EVAL); 552 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
380 SPAGAIN; 553 SPAGAIN;
554
555 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
556 SvREFCNT_dec (sv_result);
557 else
558 sv_result_cache = sv_result;
381 559
382 FREETMPS; 560 FREETMPS;
383 LEAVE; 561 LEAVE;
562
563 PUTBACK;
384 } 564 }
385 565
386 if (req->grp) 566 return !!SvTRUE (ERRSV);
387 {
388 aio_req grp = req->grp;
389
390 /* unlink request */
391 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
392 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
393
394 if (grp->grp_first == req)
395 grp->grp_first = req->grp_next;
396
397 aio_grp_dec (grp);
398 }
399
400 if (SvTRUE (ERRSV))
401 {
402 req_free (req);
403 croak (0);
404 }
405} 567}
406 568
407static void req_free (aio_req req) 569static void req_destroy (aio_req req)
408{ 570{
409 if (req->self) 571 if (req->self)
410 { 572 {
411 sv_unmagic (req->self, PERL_MAGIC_ext); 573 sv_unmagic (req->self, PERL_MAGIC_ext);
412 SvREFCNT_dec (req->self); 574 SvREFCNT_dec (req->self);
413 } 575 }
414 576
415 SvREFCNT_dec (req->data);
416 SvREFCNT_dec (req->fh); 577 SvREFCNT_dec (req->sv1);
417 SvREFCNT_dec (req->fh2); 578 SvREFCNT_dec (req->sv2);
418 SvREFCNT_dec (req->callback); 579 SvREFCNT_dec (req->callback);
419 Safefree (req->statdata);
420
421 if (req->type == REQ_READDIR && req->result >= 0)
422 free (req->data2ptr);
423 580
424 Safefree (req); 581 Safefree (req);
425} 582}
426 583
427static void req_cancel (aio_req req) 584static void req_cancel_subs (aio_req grp)
428{ 585{
429 req->flags |= FLAG_CANCELLED; 586 aio_req sub;
430 587
431 if (req->type == REQ_GROUP) 588 if (grp->type != EIO_GROUP)
589 return;
590
591 SvREFCNT_dec (grp->sv2);
592 grp->sv2 = 0;
593
594 eio_grp_cancel (grp);
595}
596
597static void
598create_respipe (void)
599{
600 if (s_epipe_renew (&respipe))
601 croak ("IO::AIO: unable to initialize result pipe");
602}
603
604static void poll_wait (void)
605{
606 while (eio_nreqs ())
432 { 607 {
433 aio_req sub; 608 int size;
434 609
435 for (sub = req->grp_first; sub; sub = sub->grp_next) 610 X_LOCK (reslock);
436 req_cancel (sub); 611 size = res_queue.size;
612 X_UNLOCK (reslock);
613
614 if (size)
615 return;
616
617 etp_maybe_start_thread ();
618
619 s_epipe_wait (&respipe);
437 } 620 }
438} 621}
439 622
440static int poll_cb () 623static int poll_cb (void)
441{ 624{
442 dSP;
443 int count = 0;
444 int do_croak = 0;
445 aio_req req;
446
447 for (;;) 625 for (;;)
448 { 626 {
449 pthread_mutex_lock (&reslock); 627 int res = eio_poll ();
450 req = reqq_shift (&res_queue);
451 628
452 if (req) 629 if (res > 0)
453 {
454 if (!res_queue.size)
455 {
456 /* read any signals sent by the worker threads */
457 char buf [32];
458 while (read (respipe [0], buf, 32) == 32)
459 ;
460 }
461 }
462
463 pthread_mutex_unlock (&reslock);
464
465 if (!req)
466 break; 630 croak (0);
467 631
468 --nreqs; 632 if (!max_outstanding || max_outstanding > eio_nreqs ())
633 return res;
469 634
470 if (req->type == REQ_QUIT) 635 poll_wait ();
471 started--;
472 else if (req->type == REQ_GROUP && req->length)
473 {
474 req->fd = 1; /* mark request as delayed */
475 continue;
476 }
477 else
478 {
479 if (req->type == REQ_READ)
480 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
481
482 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
483 SvREADONLY_off (req->data);
484
485 if (req->statdata)
486 {
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result;
489 PL_statcache = *(req->statdata);
490 }
491
492 req_invoke (req);
493
494 count++;
495 }
496
497 req_free (req);
498 } 636 }
499
500 return count;
501} 637}
502 638
503static void *aio_proc(void *arg);
504
505static void start_thread (void) 639static void atfork_child (void)
506{ 640{
507 sigset_t fullsigset, oldsigset; 641 create_respipe ();
508 pthread_t tid;
509 pthread_attr_t attr;
510
511 pthread_attr_init (&attr);
512 pthread_attr_setstacksize (&attr, STACKSIZE);
513 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
514
515 sigfillset (&fullsigset);
516 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
517
518 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
519 started++;
520
521 sigprocmask (SIG_SETMASK, &oldsigset, 0);
522}
523
524static void req_send (aio_req req)
525{
526 while (started < wanted && nreqs >= started)
527 start_thread ();
528
529 ++nreqs;
530
531 pthread_mutex_lock (&reqlock);
532 reqq_push (&req_queue, req);
533 pthread_cond_signal (&reqwait);
534 pthread_mutex_unlock (&reqlock);
535
536 if (nreqs > max_outstanding)
537 for (;;)
538 {
539 poll_cb ();
540
541 if (nreqs <= max_outstanding)
542 break;
543
544 poll_wait ();
545 }
546}
547
548static void end_thread (void)
549{
550 aio_req req;
551
552 Newz (0, req, 1, aio_cb);
553
554 req->type = REQ_QUIT;
555 req->pri = PRI_MAX + PRI_BIAS;
556
557 req_send (req);
558}
559
560static void min_parallel (int nthreads)
561{
562 if (wanted < nthreads)
563 wanted = nthreads;
564}
565
566static void max_parallel (int nthreads)
567{
568 int cur = started;
569
570 if (wanted > nthreads)
571 wanted = nthreads;
572
573 while (cur > wanted)
574 {
575 end_thread ();
576 cur--;
577 }
578
579 while (started > wanted)
580 {
581 poll_wait ();
582 poll_cb ();
583 }
584}
585
586static void create_pipe ()
587{
588 if (pipe (respipe))
589 croak ("unable to initialize result pipe");
590
591 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
592 croak ("cannot set result pipe to nonblocking mode");
593
594 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
595 croak ("cannot set result pipe to nonblocking mode");
596} 642}
597 643
598/*****************************************************************************/ 644/*****************************************************************************/
599/* work around various missing functions */
600 645
601#if !HAVE_PREADWRITE 646#if !_POSIX_MAPPED_FILES
602# define pread aio_pread 647# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
603# define pwrite aio_pwrite 648# define munmap(addr,length) (errno = ENOSYS, -1)
604 649# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
605/*
606 * make our pread/pwrite safe against themselves, but not against
607 * normal read/write by using a mutex. slows down execution a lot,
608 * but that's your problem, not mine.
609 */
610static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
611
612static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
613{
614 ssize_t res;
615 off_t ooffset;
616
617 pthread_mutex_lock (&preadwritelock);
618 ooffset = lseek (fd, 0, SEEK_CUR);
619 lseek (fd, offset, SEEK_SET);
620 res = read (fd, buf, count);
621 lseek (fd, ooffset, SEEK_SET);
622 pthread_mutex_unlock (&preadwritelock);
623
624 return res;
625}
626
627static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
628{
629 ssize_t res;
630 off_t ooffset;
631
632 pthread_mutex_lock (&preadwritelock);
633 ooffset = lseek (fd, 0, SEEK_CUR);
634 lseek (fd, offset, SEEK_SET);
635 res = write (fd, buf, count);
636 lseek (fd, offset, SEEK_SET);
637 pthread_mutex_unlock (&preadwritelock);
638
639 return res;
640}
641#endif
642
643#if !HAVE_FDATASYNC
644# define fdatasync fsync
645#endif
646
647#if !HAVE_READAHEAD
648# define readahead aio_readahead
649
650static ssize_t readahead (int fd, off_t offset, size_t count)
651{
652 dBUF;
653
654 while (count > 0)
655 {
656 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
657
658 pread (fd, aio_buf, len, offset);
659 offset += len;
660 count -= len;
661 }
662
663 fBUF;
664
665 errno = 0;
666}
667#endif
668
669#if !HAVE_READDIR_R
670# define readdir_r aio_readdir_r
671
672static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
673
674static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
675{
676 struct dirent *e;
677 int errorno;
678
679 pthread_mutex_lock (&readdirlock);
680
681 e = readdir (dirp);
682 errorno = errno;
683
684 if (e)
685 {
686 *res = ent;
687 strcpy (ent->d_name, e->d_name);
688 }
689 else
690 *res = 0;
691
692 pthread_mutex_unlock (&readdirlock);
693
694 errno = errorno;
695 return e ? 0 : -1;
696}
697#endif
698
699/* sendfile always needs emulation */
700static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
701{
702 ssize_t res;
703
704 if (!count)
705 return 0;
706
707#if HAVE_SENDFILE
708# if __linux
709 res = sendfile (ofd, ifd, &offset, count);
710
711# elif __freebsd
712 /*
713 * Of course, the freebsd sendfile is a dire hack with no thoughts
714 * wasted on making it similar to other I/O functions.
715 */
716 {
717 off_t sbytes;
718 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
719
720 if (res < 0 && sbytes)
721 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
722 res = sbytes;
723 }
724
725# elif __hpux
726 res = sendfile (ofd, ifd, offset, count, 0, 0);
727
728# elif __solaris
729 {
730 struct sendfilevec vec;
731 size_t sbytes;
732
733 vec.sfv_fd = ifd;
734 vec.sfv_flag = 0;
735 vec.sfv_off = offset;
736 vec.sfv_len = count;
737
738 res = sendfilev (ofd, &vec, 1, &sbytes);
739
740 if (res < 0 && sbytes)
741 res = sbytes;
742 }
743
744# endif 650#endif
745#else
746 res = -1;
747 errno = ENOSYS;
748#endif
749 651
750 if (res < 0 652#define MMAP_MAGIC PERL_MAGIC_ext
751 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
752#if __solaris
753 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
754#endif
755 )
756 )
757 {
758 /* emulate sendfile. this is a major pain in the ass */
759 dBUF;
760 653
761 res = 0; 654static int
762 655mmap_free (pTHX_ SV *sv, MAGIC *mg)
763 while (count)
764 {
765 ssize_t cnt;
766
767 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
768
769 if (cnt <= 0)
770 {
771 if (cnt && !res) res = -1;
772 break;
773 }
774
775 cnt = write (ofd, aio_buf, cnt);
776
777 if (cnt <= 0)
778 {
779 if (cnt && !res) res = -1;
780 break;
781 }
782
783 offset += cnt;
784 res += cnt;
785 count -= cnt;
786 }
787
788 fBUF;
789 }
790
791 return res;
792}
793
794/* read a full directory */
795static int scandir_ (const char *path, void **namesp)
796{ 656{
797 DIR *dirp; 657 int old_errno = errno;
798 union 658 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
799 {
800 struct dirent d;
801 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
802 } *u;
803 struct dirent *entp;
804 char *name, *names;
805 int memlen = 4096;
806 int memofs = 0;
807 int res = 0;
808 int errorno;
809
810 dirp = opendir (path);
811 if (!dirp)
812 return -1;
813
814 u = malloc (sizeof (*u));
815 names = malloc (memlen);
816
817 if (u && names)
818 for (;;)
819 {
820 errno = 0;
821 readdir_r (dirp, &u->d, &entp);
822
823 if (!entp)
824 break;
825
826 name = entp->d_name;
827
828 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
829 {
830 int len = strlen (name) + 1;
831
832 res++;
833
834 while (memofs + len > memlen)
835 {
836 memlen *= 2;
837 names = realloc (names, memlen);
838 if (!names)
839 break;
840 }
841
842 memcpy (names + memofs, name, len);
843 memofs += len;
844 }
845 }
846
847 errorno = errno; 659 errno = old_errno;
848 free (u);
849 closedir (dirp);
850 660
851 if (errorno) 661 mg->mg_obj = 0; /* just in case */
852 {
853 free (names);
854 errno = errorno;
855 res = -1;
856 }
857 662
858 *namesp = (void *)names; 663 SvREADONLY_off (sv);
664
665 if (SvPVX (sv) != mg->mg_ptr)
666 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
667
668 SvCUR_set (sv, 0);
669 SvPVX (sv) = 0;
670 SvOK_off (sv);
671
859 return res; 672 return 0;
860} 673}
674
675static MGVTBL mmap_vtbl = {
676 0, 0, 0, 0, mmap_free
677};
861 678
862/*****************************************************************************/ 679/*****************************************************************************/
863 680
864static void *aio_proc (void *thr_arg) 681static SV *
682get_cb (SV *cb_sv)
865{ 683{
866 aio_req req; 684 SvGETMAGIC (cb_sv);
867 int type; 685 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
868
869 do
870 {
871 pthread_mutex_lock (&reqlock);
872
873 for (;;)
874 {
875 req = reqq_shift (&req_queue);
876
877 if (req)
878 break;
879
880 pthread_cond_wait (&reqwait, &reqlock);
881 }
882
883 pthread_mutex_unlock (&reqlock);
884
885 errno = 0; /* strictly unnecessary */
886 type = req->type; /* remember type for QUIT check */
887
888 if (!(req->flags & FLAG_CANCELLED))
889 switch (type)
890 {
891 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
892 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
893
894 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
895 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
896
897 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
898 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
899 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
900
901 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
902 case REQ_CLOSE: req->result = close (req->fd); break;
903 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
904 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
905 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
906 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
907 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
908
909 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
910 case REQ_FSYNC: req->result = fsync (req->fd); break;
911 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
912
913 case REQ_BUSY:
914 {
915 struct timeval tv;
916
917 tv.tv_sec = req->fd;
918 tv.tv_usec = req->fd2;
919
920 req->result = select (0, 0, 0, 0, &tv);
921 }
922
923 case REQ_GROUP:
924 case REQ_NOP:
925 case REQ_QUIT:
926 break;
927
928 default:
929 req->result = ENOSYS;
930 break;
931 }
932
933 req->errorno = errno;
934
935 pthread_mutex_lock (&reslock);
936
937 if (!reqq_push (&res_queue, req))
938 /* write a dummy byte to the pipe so fh becomes ready */
939 write (respipe [1], &respipe, 1);
940
941 pthread_mutex_unlock (&reslock);
942 }
943 while (type != REQ_QUIT);
944
945 return 0;
946}
947
948/*****************************************************************************/
949
950static void atfork_prepare (void)
951{
952 pthread_mutex_lock (&reqlock);
953 pthread_mutex_lock (&reslock);
954#if !HAVE_PREADWRITE
955 pthread_mutex_lock (&preadwritelock);
956#endif
957#if !HAVE_READDIR_R
958 pthread_mutex_lock (&readdirlock);
959#endif
960}
961
962static void atfork_parent (void)
963{
964#if !HAVE_READDIR_R
965 pthread_mutex_unlock (&readdirlock);
966#endif
967#if !HAVE_PREADWRITE
968 pthread_mutex_unlock (&preadwritelock);
969#endif
970 pthread_mutex_unlock (&reslock);
971 pthread_mutex_unlock (&reqlock);
972}
973
974static void atfork_child (void)
975{
976 aio_req prv;
977
978 started = 0;
979
980 while (prv = reqq_shift (&req_queue))
981 req_free (prv);
982
983 while (prv = reqq_shift (&res_queue))
984 req_free (prv);
985
986 close (respipe [0]);
987 close (respipe [1]);
988 create_pipe ();
989
990 atfork_parent ();
991} 686}
992 687
993#define dREQ \ 688#define dREQ \
689 SV *cb_cv; \
994 aio_req req; \ 690 aio_req req; \
995 int req_pri = next_pri; \ 691 int req_pri = next_pri; \
996 next_pri = DEFAULT_PRI + PRI_BIAS; \ 692 next_pri = EIO_PRI_DEFAULT; \
997 \ 693 \
998 if (SvOK (callback) && !SvROK (callback)) \ 694 cb_cv = get_cb (callback); \
999 croak ("callback must be undef or of reference type"); \
1000 \ 695 \
1001 Newz (0, req, 1, aio_cb); \ 696 Newz (0, req, 1, eio_req); \
1002 if (!req) \ 697 if (!req) \
1003 croak ("out of memory during aio_req allocation"); \ 698 croak ("out of memory during eio_req allocation"); \
1004 \ 699 \
1005 req->callback = newSVsv (callback); \ 700 req->callback = SvREFCNT_inc (cb_cv); \
1006 req->pri = req_pri 701 req->pri = req_pri
1007 702
1008#define REQ_SEND \ 703#define REQ_SEND \
704 PUTBACK; \
1009 req_send (req); \ 705 req_submit (req); \
706 SPAGAIN; \
1010 \ 707 \
1011 if (GIMME_V != G_VOID) \ 708 if (GIMME_V != G_VOID) \
1012 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 709 XPUSHs (req_sv (req, aio_req_stash));
1013 710
1014MODULE = IO::AIO PACKAGE = IO::AIO 711MODULE = IO::AIO PACKAGE = IO::AIO
1015 712
1016PROTOTYPES: ENABLE 713PROTOTYPES: ENABLE
1017 714
1018BOOT: 715BOOT:
1019{ 716{
717 static const struct {
718 const char *name;
719 IV iv;
720 } *civ, const_iv[] = {
721# define const_niv(name, value) { # name, (IV) value },
722# define const_iv(name) { # name, (IV) name },
723# define const_eio(name) { # name, (IV) EIO_ ## name },
724 const_iv (EXDEV)
725 const_iv (ENOSYS)
726 const_iv (O_RDONLY)
727 const_iv (O_WRONLY)
728 const_iv (O_RDWR)
729 const_iv (O_CREAT)
730 const_iv (O_TRUNC)
731 const_iv (O_EXCL)
732 const_iv (O_APPEND)
733#ifndef _WIN32
734 const_iv (S_IFIFO)
735#endif
736 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
737 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
738 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
739 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
740 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
741 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
742
743 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
744 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
745 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
746 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
747 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
748
749 const_iv (ST_RDONLY)
750 const_iv (ST_NOSUID)
751 const_iv (ST_NODEV)
752 const_iv (ST_NOEXEC)
753 const_iv (ST_SYNCHRONOUS)
754 const_iv (ST_MANDLOCK)
755 const_iv (ST_WRITE)
756 const_iv (ST_APPEND)
757 const_iv (ST_IMMUTABLE)
758 const_iv (ST_NOATIME)
759 const_iv (ST_NODIRATIME)
760 const_iv (ST_RELATIME)
761
762 const_iv (PROT_NONE)
763 const_iv (PROT_EXEC)
764 const_iv (PROT_READ)
765 const_iv (PROT_WRITE)
766
767 /*const_iv (MAP_FIXED)*/
768 const_iv (MAP_PRIVATE)
769 const_iv (MAP_SHARED)
770 const_iv (MAP_ANONYMOUS)
771
772 /* linuxish */
773 const_iv (MAP_HUGETLB)
774 const_iv (MAP_LOCKED)
775 const_iv (MAP_NORESERVE)
776 const_iv (MAP_POPULATE)
777 const_iv (MAP_NONBLOCK)
778
779 const_iv (MCL_FUTURE)
780 const_iv (MCL_CURRENT)
781
782 const_eio (MS_ASYNC)
783 const_eio (MS_INVALIDATE)
784 const_eio (MS_SYNC)
785
786 const_eio (MT_MODIFY)
787
788 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
789 const_eio (SYNC_FILE_RANGE_WRITE)
790 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
791
792 const_eio (READDIR_DENTS)
793 const_eio (READDIR_DIRS_FIRST)
794 const_eio (READDIR_STAT_ORDER)
795 const_eio (READDIR_FOUND_UNKNOWN)
796
797 const_eio (DT_UNKNOWN)
798 const_eio (DT_FIFO)
799 const_eio (DT_CHR)
800 const_eio (DT_DIR)
801 const_eio (DT_BLK)
802 const_eio (DT_REG)
803 const_eio (DT_LNK)
804 const_eio (DT_SOCK)
805 const_eio (DT_WHT)
806 };
807
1020 HV *stash = gv_stashpv ("IO::AIO", 1); 808 aio_stash = gv_stashpv ("IO::AIO" , 1);
1021 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 809 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1022 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 810 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1023 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1024 811
812 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
813 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
814
815 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
816
1025 create_pipe (); 817 create_respipe ();
1026 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1027}
1028 818
819 if (eio_init (want_poll, done_poll) < 0)
820 croak ("IO::AIO: unable to initialise eio library");
821
822 /* atfork child called in fifo order, so before eio's handler */
823 X_THREAD_ATFORK (0, 0, atfork_child);
824}
825
1029void 826void
1030min_parallel (nthreads) 827max_poll_reqs (int nreqs)
1031 int nthreads
1032 PROTOTYPE: $ 828 PROTOTYPE: $
829 CODE:
830 eio_set_max_poll_reqs (nreqs);
1033 831
1034void 832void
1035max_parallel (nthreads) 833max_poll_time (double nseconds)
1036 int nthreads
1037 PROTOTYPE: $ 834 PROTOTYPE: $
1038
1039int
1040max_outstanding (nreqs)
1041 int nreqs
1042 PROTOTYPE: $
1043 CODE: 835 CODE:
1044 RETVAL = max_outstanding; 836 eio_set_max_poll_time (nseconds);
837
838void
839min_parallel (int nthreads)
840 PROTOTYPE: $
841 CODE:
842 eio_set_min_parallel (nthreads);
843
844void
845max_parallel (int nthreads)
846 PROTOTYPE: $
847 CODE:
848 eio_set_max_parallel (nthreads);
849
850void
851max_idle (int nthreads)
852 PROTOTYPE: $
853 CODE:
854 eio_set_max_idle (nthreads);
855
856void
857max_outstanding (int maxreqs)
858 PROTOTYPE: $
859 CODE:
1045 max_outstanding = nreqs; 860 max_outstanding = maxreqs;
1046 861
1047void 862void
1048aio_open (pathname,flags,mode,callback=&PL_sv_undef) 863aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1049 SV * pathname
1050 int flags
1051 int mode
1052 SV * callback
1053 PROTOTYPE: $$$;$ 864 PROTOTYPE: $$$;$
1054 PPCODE: 865 PPCODE:
1055{ 866{
1056 dREQ; 867 dREQ;
1057 868
1058 req->type = REQ_OPEN; 869 req->type = EIO_OPEN;
1059 req->data = newSVsv (pathname); 870 req->sv1 = newSVsv (pathname);
1060 req->dataptr = SvPVbyte_nolen (req->data); 871 req->ptr1 = SvPVbyte_nolen (req->sv1);
1061 req->fd = flags; 872 req->int1 = flags;
1062 req->mode = mode; 873 req->int2 = mode;
1063 874
1064 REQ_SEND; 875 REQ_SEND;
1065} 876}
1066 877
1067void 878void
1068aio_close (fh,callback=&PL_sv_undef) 879aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1069 SV * fh
1070 SV * callback
1071 PROTOTYPE: $;$ 880 PROTOTYPE: $;$
1072 ALIAS: 881 ALIAS:
1073 aio_close = REQ_CLOSE
1074 aio_fsync = REQ_FSYNC 882 aio_fsync = EIO_FSYNC
1075 aio_fdatasync = REQ_FDATASYNC 883 aio_fdatasync = EIO_FDATASYNC
1076 PPCODE: 884 PPCODE:
1077{ 885{
886 int fd = s_fileno_croak (fh, 0);
1078 dREQ; 887 dREQ;
1079 888
1080 req->type = ix; 889 req->type = ix;
1081 req->fh = newSVsv (fh); 890 req->sv1 = newSVsv (fh);
1082 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 891 req->int1 = fd;
1083 892
1084 REQ_SEND (req); 893 REQ_SEND (req);
1085} 894}
1086 895
1087void 896void
897aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
898 PROTOTYPE: $$$$;$
899 PPCODE:
900{
901 int fd = s_fileno_croak (fh, 0);
902 dREQ;
903
904 req->type = EIO_SYNC_FILE_RANGE;
905 req->sv1 = newSVsv (fh);
906 req->int1 = fd;
907 req->offs = offset;
908 req->size = nbytes;
909 req->int2 = flags;
910
911 REQ_SEND (req);
912}
913
914void
915aio_close (SV *fh, SV *callback=&PL_sv_undef)
916 PROTOTYPE: $;$
917 PPCODE:
918{
919 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
920 int fd = s_fileno_croak (fh, 0);
921 dREQ;
922
923 if (close_pipe < 0)
924 {
925 int pipefd [2];
926
927 if (pipe (pipefd) < 0
928 || close (pipefd [1]) < 0
929 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
930 abort (); /*D*/
931
932 close_pipe = pipefd [0];
933 }
934
935 req->type = EIO_DUP2;
936 req->int1 = close_pipe;
937 req->sv2 = newSVsv (fh);
938 req->int2 = fd;
939
940 REQ_SEND (req);
941}
942
943void
1088aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 944aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1089 SV * fh
1090 UV offset
1091 UV length
1092 SV * data
1093 UV dataoffset
1094 SV * callback
1095 ALIAS: 945 ALIAS:
1096 aio_read = REQ_READ 946 aio_read = EIO_READ
1097 aio_write = REQ_WRITE 947 aio_write = EIO_WRITE
1098 PROTOTYPE: $$$$$;$ 948 PROTOTYPE: $$$$$;$
1099 PPCODE: 949 PPCODE:
1100{ 950{
1101 aio_req req;
1102 STRLEN svlen; 951 STRLEN svlen;
952 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1103 char *svptr = SvPVbyte (data, svlen); 953 char *svptr = SvPVbyte (data, svlen);
1104 954 UV len = SvUV (length);
1105 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data);
1107 955
1108 if (dataoffset < 0) 956 if (dataoffset < 0)
1109 dataoffset += svlen; 957 dataoffset += svlen;
1110 958
1111 if (dataoffset < 0 || dataoffset > svlen) 959 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("data offset outside of string"); 960 croak ("dataoffset outside of data scalar");
1113 961
1114 if (ix == REQ_WRITE) 962 if (ix == EIO_WRITE)
1115 { 963 {
1116 /* write: check length and adjust. */ 964 /* write: check length and adjust. */
1117 if (length < 0 || length + dataoffset > svlen) 965 if (!SvOK (length) || len + dataoffset > svlen)
1118 length = svlen - dataoffset; 966 len = svlen - dataoffset;
1119 } 967 }
1120 else 968 else
1121 { 969 {
1122 /* read: grow scalar as necessary */ 970 /* read: check type and grow scalar as necessary */
971 SvUPGRADE (data, SVt_PV);
1123 svptr = SvGROW (data, length + dataoffset); 972 svptr = SvGROW (data, len + dataoffset + 1);
1124 } 973 }
1125
1126 if (length < 0)
1127 croak ("length must not be negative");
1128 974
1129 { 975 {
1130 dREQ; 976 dREQ;
1131 977
1132 req->type = ix; 978 req->type = ix;
1133 req->fh = newSVsv (fh); 979 req->sv1 = newSVsv (fh);
1134 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 980 req->int1 = fd;
1135 : IoOFP (sv_2io (fh))); 981 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1136 req->offset = offset; 982 req->size = len;
1137 req->length = length;
1138 req->data = SvREFCNT_inc (data); 983 req->sv2 = SvREFCNT_inc (data);
1139 req->dataptr = (char *)svptr + dataoffset; 984 req->ptr2 = (char *)svptr + dataoffset;
985 req->stroffset = dataoffset;
1140 986
1141 if (!SvREADONLY (data)) 987 if (!SvREADONLY (data))
1142 { 988 {
1143 SvREADONLY_on (data); 989 SvREADONLY_on (data);
1144 req->data2ptr = (void *)data; 990 req->flags |= FLAG_SV2_RO_OFF;
1145 } 991 }
1146 992
1147 REQ_SEND; 993 REQ_SEND;
1148 } 994 }
1149} 995}
1150 996
1151void 997void
998aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
999 PROTOTYPE: $$;$
1000 PPCODE:
1001{
1002 SV *data;
1003 dREQ;
1004
1005 req->type = EIO_READLINK;
1006 req->sv1 = newSVsv (path);
1007 req->ptr1 = SvPVbyte_nolen (req->sv1);
1008
1009 REQ_SEND;
1010}
1011
1012void
1152aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1013aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1153 SV * out_fh
1154 SV * in_fh
1155 UV in_offset
1156 UV length
1157 SV * callback
1158 PROTOTYPE: $$$$;$ 1014 PROTOTYPE: $$$$;$
1159 PPCODE: 1015 PPCODE:
1160{ 1016{
1017 int ifd = s_fileno_croak (in_fh , 0);
1018 int ofd = s_fileno_croak (out_fh, 1);
1161 dREQ; 1019 dREQ;
1162 1020
1163 req->type = REQ_SENDFILE; 1021 req->type = EIO_SENDFILE;
1164 req->fh = newSVsv (out_fh); 1022 req->sv1 = newSVsv (out_fh);
1165 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1023 req->int1 = ofd;
1166 req->fh2 = newSVsv (in_fh); 1024 req->sv2 = newSVsv (in_fh);
1167 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1025 req->int2 = ifd;
1168 req->offset = in_offset; 1026 req->offs = in_offset;
1169 req->length = length; 1027 req->size = length;
1170 1028
1171 REQ_SEND; 1029 REQ_SEND;
1172} 1030}
1173 1031
1174void 1032void
1175aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1033aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 IV length
1179 SV * callback
1180 PROTOTYPE: $$$;$ 1034 PROTOTYPE: $$$;$
1181 PPCODE: 1035 PPCODE:
1182{ 1036{
1037 int fd = s_fileno_croak (fh, 0);
1183 dREQ; 1038 dREQ;
1184 1039
1185 req->type = REQ_READAHEAD; 1040 req->type = EIO_READAHEAD;
1186 req->fh = newSVsv (fh); 1041 req->sv1 = newSVsv (fh);
1187 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1042 req->int1 = fd;
1188 req->offset = offset; 1043 req->offs = offset;
1189 req->length = length; 1044 req->size = length;
1190 1045
1191 REQ_SEND; 1046 REQ_SEND;
1192} 1047}
1193 1048
1194void 1049void
1195aio_stat (fh_or_path,callback=&PL_sv_undef) 1050aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1196 SV * fh_or_path
1197 SV * callback
1198 ALIAS: 1051 ALIAS:
1199 aio_stat = REQ_STAT 1052 aio_stat = EIO_STAT
1200 aio_lstat = REQ_LSTAT 1053 aio_lstat = EIO_LSTAT
1054 aio_statvfs = EIO_STATVFS
1201 PPCODE: 1055 PPCODE:
1202{ 1056{
1203 dREQ; 1057 dREQ;
1204 1058
1205 New (0, req->statdata, 1, Stat_t); 1059 req->sv1 = newSVsv (fh_or_path);
1206 if (!req->statdata)
1207 {
1208 req_free (req);
1209 croak ("out of memory during aio_req->statdata allocation");
1210 }
1211 1060
1212 if (SvPOK (fh_or_path)) 1061 if (SvPOK (req->sv1))
1213 { 1062 {
1214 req->type = ix; 1063 req->type = ix;
1215 req->data = newSVsv (fh_or_path);
1216 req->dataptr = SvPVbyte_nolen (req->data); 1064 req->ptr1 = SvPVbyte_nolen (req->sv1);
1217 } 1065 }
1218 else 1066 else
1219 { 1067 {
1220 req->type = REQ_FSTAT; 1068 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1221 req->fh = newSVsv (fh_or_path);
1222 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1069 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1223 } 1070 }
1224 1071
1225 REQ_SEND; 1072 REQ_SEND;
1226} 1073}
1227 1074
1228void 1075void
1076aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1077 PPCODE:
1078{
1079 dREQ;
1080
1081 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1082 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1083 req->sv1 = newSVsv (fh_or_path);
1084
1085 if (SvPOK (req->sv1))
1086 {
1087 req->type = EIO_UTIME;
1088 req->ptr1 = SvPVbyte_nolen (req->sv1);
1089 }
1090 else
1091 {
1092 req->type = EIO_FUTIME;
1093 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1094 }
1095
1096 REQ_SEND;
1097}
1098
1099void
1100aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1101 PPCODE:
1102{
1103 dREQ;
1104
1105 req->sv1 = newSVsv (fh_or_path);
1106 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1107
1108 if (SvPOK (req->sv1))
1109 {
1110 req->type = EIO_TRUNCATE;
1111 req->ptr1 = SvPVbyte_nolen (req->sv1);
1112 }
1113 else
1114 {
1115 req->type = EIO_FTRUNCATE;
1116 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1117 }
1118
1119 REQ_SEND;
1120}
1121
1122void
1123aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1124 ALIAS:
1125 aio_chmod = EIO_CHMOD
1126 aio_mkdir = EIO_MKDIR
1127 PPCODE:
1128{
1129 dREQ;
1130
1131 req->int2 = mode;
1132 req->sv1 = newSVsv (fh_or_path);
1133
1134 if (SvPOK (req->sv1))
1135 {
1136 req->type = ix;
1137 req->ptr1 = SvPVbyte_nolen (req->sv1);
1138 }
1139 else
1140 {
1141 req->type = EIO_FCHMOD;
1142 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1143 }
1144
1145 REQ_SEND;
1146}
1147
1148void
1149aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1150 PPCODE:
1151{
1152 dREQ;
1153
1154 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1155 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1156 req->sv1 = newSVsv (fh_or_path);
1157
1158 if (SvPOK (req->sv1))
1159 {
1160 req->type = EIO_CHOWN;
1161 req->ptr1 = SvPVbyte_nolen (req->sv1);
1162 }
1163 else
1164 {
1165 req->type = EIO_FCHOWN;
1166 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1167 }
1168
1169 REQ_SEND;
1170}
1171
1172void
1173aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1174 PPCODE:
1175{
1176 dREQ;
1177
1178 req->type = EIO_READDIR;
1179 req->sv1 = newSVsv (pathname);
1180 req->ptr1 = SvPVbyte_nolen (req->sv1);
1181 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1182
1183 if (flags & EIO_READDIR_DENTS)
1184 req->int1 |= EIO_READDIR_CUSTOM2;
1185
1186 REQ_SEND;
1187}
1188
1189void
1229aio_unlink (pathname,callback=&PL_sv_undef) 1190aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1230 SV * pathname
1231 SV * callback
1232 ALIAS: 1191 ALIAS:
1233 aio_unlink = REQ_UNLINK 1192 aio_unlink = EIO_UNLINK
1234 aio_rmdir = REQ_RMDIR 1193 aio_rmdir = EIO_RMDIR
1235 aio_readdir = REQ_READDIR 1194 aio_readdir = EIO_READDIR
1236 PPCODE: 1195 PPCODE:
1237{ 1196{
1238 dREQ; 1197 dREQ;
1239 1198
1240 req->type = ix; 1199 req->type = ix;
1241 req->data = newSVsv (pathname); 1200 req->sv1 = newSVsv (pathname);
1242 req->dataptr = SvPVbyte_nolen (req->data); 1201 req->ptr1 = SvPVbyte_nolen (req->sv1);
1243 1202
1244 REQ_SEND; 1203 REQ_SEND;
1245} 1204}
1246 1205
1247void 1206void
1248aio_link (oldpath,newpath,callback=&PL_sv_undef) 1207aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1249 SV * oldpath
1250 SV * newpath
1251 SV * callback
1252 ALIAS: 1208 ALIAS:
1253 aio_link = REQ_LINK 1209 aio_link = EIO_LINK
1254 aio_symlink = REQ_SYMLINK 1210 aio_symlink = EIO_SYMLINK
1255 aio_rename = REQ_RENAME 1211 aio_rename = EIO_RENAME
1256 PPCODE: 1212 PPCODE:
1257{ 1213{
1258 dREQ; 1214 dREQ;
1259 1215
1260 req->type = ix; 1216 req->type = ix;
1261 req->fh = newSVsv (oldpath); 1217 req->sv1 = newSVsv (oldpath);
1262 req->data2ptr = SvPVbyte_nolen (req->fh); 1218 req->ptr1 = SvPVbyte_nolen (req->sv1);
1263 req->data = newSVsv (newpath); 1219 req->sv2 = newSVsv (newpath);
1264 req->dataptr = SvPVbyte_nolen (req->data); 1220 req->ptr2 = SvPVbyte_nolen (req->sv2);
1265 1221
1266 REQ_SEND; 1222 REQ_SEND;
1267} 1223}
1268 1224
1269void 1225void
1270aio_busy (delay,callback=&PL_sv_undef) 1226aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1271 double delay
1272 SV * callback
1273 PPCODE: 1227 PPCODE:
1274{ 1228{
1275 dREQ; 1229 dREQ;
1276 1230
1277 req->type = REQ_BUSY; 1231 req->type = EIO_MKNOD;
1278 req->fd = delay < 0. ? 0 : delay; 1232 req->sv1 = newSVsv (pathname);
1279 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1233 req->ptr1 = SvPVbyte_nolen (req->sv1);
1280 1234 req->int2 = (mode_t)mode;
1235 req->offs = dev;
1236
1281 REQ_SEND; 1237 REQ_SEND;
1282} 1238}
1283 1239
1284void 1240void
1241aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1242 ALIAS:
1243 aio_mtouch = EIO_MTOUCH
1244 aio_msync = EIO_MSYNC
1245 PROTOTYPE: $$$$;$
1246 PPCODE:
1247{
1248 STRLEN svlen;
1249 UV len = SvUV (length);
1250 char *svptr = SvPVbyte (data, svlen);
1251
1252 if (offset < 0)
1253 offset += svlen;
1254
1255 if (offset < 0 || offset > svlen)
1256 croak ("offset outside of scalar");
1257
1258 if (!SvOK (length) || len + offset > svlen)
1259 len = svlen - offset;
1260
1261 {
1262 dREQ;
1263
1264 req->type = ix;
1265 req->size = len;
1266 req->sv2 = SvREFCNT_inc (data);
1267 req->ptr2 = (char *)svptr + offset;
1268 req->int1 = flags;
1269
1270 REQ_SEND;
1271 }
1272}
1273
1274void
1275aio_busy (double delay, SV *callback=&PL_sv_undef)
1276 PPCODE:
1277{
1278 dREQ;
1279
1280 req->type = EIO_BUSY;
1281 req->nv1 = delay < 0. ? 0. : delay;
1282
1283 REQ_SEND;
1284}
1285
1286void
1285aio_group (callback=&PL_sv_undef) 1287aio_group (SV *callback=&PL_sv_undef)
1286 SV * callback
1287 PROTOTYPE: ;$ 1288 PROTOTYPE: ;$
1288 PPCODE: 1289 PPCODE:
1289{ 1290{
1290 dREQ; 1291 dREQ;
1291 1292
1292 req->type = REQ_GROUP; 1293 req->type = EIO_GROUP;
1294
1293 req_send (req); 1295 req_submit (req);
1294
1295 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1296 XPUSHs (req_sv (req, aio_grp_stash));
1296} 1297}
1297 1298
1298void 1299void
1299aio_nop (callback=&PL_sv_undef) 1300aio_nop (SV *callback=&PL_sv_undef)
1300 SV * callback 1301 ALIAS:
1302 aio_nop = EIO_NOP
1303 aio_sync = EIO_SYNC
1301 PPCODE: 1304 PPCODE:
1302{ 1305{
1303 dREQ; 1306 dREQ;
1304 1307
1305 req->type = REQ_NOP; 1308 req->type = ix;
1306 1309
1307 REQ_SEND; 1310 REQ_SEND;
1308} 1311}
1309 1312
1310void 1313int
1311aioreq_pri (int pri = DEFAULT_PRI) 1314aioreq_pri (int pri = 0)
1312 CODE: 1315 PROTOTYPE: ;$
1316 CODE:
1317 RETVAL = next_pri;
1318 if (items > 0)
1319 {
1313 if (pri < PRI_MIN) pri = PRI_MIN; 1320 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1314 if (pri > PRI_MAX) pri = PRI_MAX; 1321 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1315 next_pri = pri + PRI_BIAS; 1322 next_pri = pri;
1323 }
1324 OUTPUT:
1325 RETVAL
1316 1326
1317void 1327void
1318aioreq_nice (int nice = 0) 1328aioreq_nice (int nice = 0)
1319 CODE: 1329 CODE:
1320 nice = next_pri - nice; 1330 nice = next_pri - nice;
1321 if (nice < PRI_MIN) nice = PRI_MIN; 1331 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1322 if (nice > PRI_MAX) nice = PRI_MAX; 1332 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1323 next_pri = nice + PRI_BIAS; 1333 next_pri = nice;
1324 1334
1325void 1335void
1326flush () 1336flush ()
1327 PROTOTYPE: 1337 PROTOTYPE:
1328 CODE: 1338 CODE:
1329 while (nreqs) 1339 while (eio_nreqs ())
1330 { 1340 {
1331 poll_wait (); 1341 poll_wait ();
1332 poll_cb (); 1342 poll_cb ();
1333 } 1343 }
1334 1344
1335void 1345int
1336poll() 1346poll()
1337 PROTOTYPE: 1347 PROTOTYPE:
1338 CODE: 1348 CODE:
1339 if (nreqs)
1340 {
1341 poll_wait (); 1349 poll_wait ();
1342 poll_cb (); 1350 RETVAL = poll_cb ();
1343 } 1351 OUTPUT:
1352 RETVAL
1344 1353
1345int 1354int
1346poll_fileno() 1355poll_fileno()
1347 PROTOTYPE: 1356 PROTOTYPE:
1348 CODE: 1357 CODE:
1349 RETVAL = respipe [0]; 1358 RETVAL = s_epipe_fd (&respipe);
1350 OUTPUT: 1359 OUTPUT:
1351 RETVAL 1360 RETVAL
1352 1361
1353int 1362int
1354poll_cb(...) 1363poll_cb(...)
1360 1369
1361void 1370void
1362poll_wait() 1371poll_wait()
1363 PROTOTYPE: 1372 PROTOTYPE:
1364 CODE: 1373 CODE:
1365 if (nreqs)
1366 poll_wait (); 1374 poll_wait ();
1367 1375
1368int 1376int
1369nreqs() 1377nreqs()
1370 PROTOTYPE: 1378 PROTOTYPE:
1371 CODE: 1379 CODE:
1372 RETVAL = nreqs; 1380 RETVAL = eio_nreqs ();
1373 OUTPUT: 1381 OUTPUT:
1374 RETVAL 1382 RETVAL
1375 1383
1384int
1385nready()
1386 PROTOTYPE:
1387 CODE:
1388 RETVAL = eio_nready ();
1389 OUTPUT:
1390 RETVAL
1391
1392int
1393npending()
1394 PROTOTYPE:
1395 CODE:
1396 RETVAL = eio_npending ();
1397 OUTPUT:
1398 RETVAL
1399
1400int
1401nthreads()
1402 PROTOTYPE:
1403 CODE:
1404 RETVAL = eio_nthreads ();
1405 OUTPUT:
1406 RETVAL
1407
1408int
1409fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1410 PROTOTYPE: $$$$
1411 CODE:
1412 RETVAL = posix_fadvise (fh, offset, length, advice);
1413 OUTPUT:
1414 RETVAL
1415
1416ssize_t
1417sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1418 PROTOTYPE: $$$$
1419 CODE:
1420 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1421 OUTPUT:
1422 RETVAL
1423
1424void
1425mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1426 PROTOTYPE: $$$$$;$
1427 PPCODE:
1428 sv_unmagic (scalar, MMAP_MAGIC);
1429{
1430 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1431 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1432 if (addr == (void *)-1)
1433 XSRETURN_NO;
1434
1435 sv_force_normal (scalar);
1436
1437 /* we store the length in mg_obj, as namlen is I32 :/ */
1438 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1439 ->mg_obj = (SV *)length;
1440
1441 SvUPGRADE (scalar, SVt_PV); /* nop... */
1442
1443 if (!(prot & PROT_WRITE))
1444 SvREADONLY_on (scalar);
1445
1446 if (SvLEN (scalar))
1447 Safefree (SvPVX (scalar));
1448
1449 SvPVX (scalar) = (char *)addr;
1450 SvCUR_set (scalar, length);
1451 SvLEN_set (scalar, 0);
1452 SvPOK_only (scalar);
1453
1454 XSRETURN_YES;
1455}
1456
1457void
1458munmap (SV *scalar)
1459 PROTOTYPE: $
1460 CODE:
1461 sv_unmagic (scalar, MMAP_MAGIC);
1462
1463int
1464madvise (SV *scalar, off_t offset, off_t length, IV advice_or_prot)
1465 ALIAS:
1466 mprotect = 1
1467 PROTOTYPE: $$$$
1468 CODE:
1469{
1470 STRLEN cur;
1471 char *addr = SvPVbyte (scalar, cur);
1472
1473 if (offset > cur)
1474 RETVAL = errno = EFAULT;
1475 else
1476 {
1477 if (!SvOK (ST (2)))
1478 length = cur - offset;
1479
1480 if (offset + length > cur)
1481 RETVAL = errno = EFAULT;
1482 else
1483 switch (ix)
1484 {
1485 case 0: RETVAL = posix_madvise (addr + offset, length, advice_or_prot); break;
1486 case 1: RETVAL = mprotect (addr + offset, length, advice_or_prot); break;
1487 }
1488 }
1489}
1490 OUTPUT:
1491 RETVAL
1492
1493int
1494mlockall (int flags)
1495 PROTOTYPE: $
1496 CODE:
1497#if _POSIX_MEMLOCK
1498#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1499 extern int mallopt (int, int);
1500 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1501#endif
1502 mlockall (flags);
1503#else
1504 RETVAL = -1;
1505 errno = ENOSYS;
1506#endif
1507 OUTPUT:
1508 RETVAL
1509
1510int
1511munlockall ()
1512 PROTOTYPE:
1513 CODE:
1514#if _POSIX_MEMLOCK
1515 munlockall ();
1516#else
1517 RETVAL = -1;
1518 errno = ENOSYS;
1519#endif
1520 OUTPUT:
1521 RETVAL
1522
1523void _on_next_submit (SV *cb)
1524 CODE:
1525 SvREFCNT_dec (on_next_submit);
1526 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1527
1376PROTOTYPES: DISABLE 1528PROTOTYPES: DISABLE
1377 1529
1378MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1530MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1379 1531
1380void 1532void
1381cancel (aio_req_ornot req) 1533cancel (aio_req_ornot req)
1382 CODE: 1534 CODE:
1383 req_cancel (req); 1535 eio_cancel (req);
1384 1536
1385void 1537void
1386cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1538cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1387 CODE: 1539 PPCODE:
1540{
1541 if (GIMME_V != G_VOID)
1542 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1543
1544 if (items > 1)
1545 {
1546 SV *cb_cv =get_cb (callback);
1547
1388 SvREFCNT_dec (req->callback); 1548 SvREFCNT_dec (req->callback);
1389 req->callback = newSVsv (callback); 1549 req->callback = SvREFCNT_inc (cb_cv);
1550 }
1551}
1390 1552
1391MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1553MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1392 1554
1393void 1555void
1394add (aio_req grp, ...) 1556add (aio_req grp, ...)
1395 PPCODE: 1557 PPCODE:
1396{ 1558{
1397 int i; 1559 int i;
1398 aio_req req;
1399 1560
1400 if (grp->fd == 2) 1561 if (grp->int1 == 2)
1401 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1562 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1402 1563
1403 for (i = 1; i < items; ++i ) 1564 for (i = 1; i < items; ++i )
1404 { 1565 {
1566 aio_req req;
1567
1405 if (GIMME_V != G_VOID) 1568 if (GIMME_V != G_VOID)
1406 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1569 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1407 1570
1408 req = SvAIO_REQ (ST (i)); 1571 req = SvAIO_REQ (ST (i));
1409 1572
1410 if (req) 1573 if (req)
1411 { 1574 eio_grp_add (grp, req);
1412 ++grp->length;
1413 req->grp = grp;
1414
1415 req->grp_prev = 0;
1416 req->grp_next = grp->grp_first;
1417
1418 if (grp->grp_first)
1419 grp->grp_first->grp_prev = req;
1420
1421 grp->grp_first = req;
1422 }
1423 } 1575 }
1424} 1576}
1577
1578void
1579cancel_subs (aio_req_ornot req)
1580 CODE:
1581 req_cancel_subs (req);
1425 1582
1426void 1583void
1427result (aio_req grp, ...) 1584result (aio_req grp, ...)
1428 CODE: 1585 CODE:
1429{ 1586{
1430 int i; 1587 int i;
1588 AV *av;
1589
1590 grp->errorno = errno;
1591
1431 AV *av = newAV (); 1592 av = newAV ();
1593 av_extend (av, items - 1);
1432 1594
1433 for (i = 1; i < items; ++i ) 1595 for (i = 1; i < items; ++i )
1434 av_push (av, newSVsv (ST (i))); 1596 av_push (av, newSVsv (ST (i)));
1435 1597
1436 SvREFCNT_dec (grp->data); 1598 SvREFCNT_dec (grp->sv1);
1437 grp->data = (SV *)av; 1599 grp->sv1 = (SV *)av;
1438} 1600}
1601
1602void
1603errno (aio_req grp, int errorno = errno)
1604 CODE:
1605 grp->errorno = errorno;
1439 1606
1440void 1607void
1441limit (aio_req grp, int limit) 1608limit (aio_req grp, int limit)
1442 CODE: 1609 CODE:
1443 grp->fd2 = limit; 1610 eio_grp_limit (grp, limit);
1444 aio_grp_feed (grp);
1445 1611
1446void 1612void
1447feed (aio_req grp, SV *callback=&PL_sv_undef) 1613feed (aio_req grp, SV *callback=&PL_sv_undef)
1448 CODE: 1614 CODE:
1449{ 1615{
1450 SvREFCNT_dec (grp->fh2); 1616 SvREFCNT_dec (grp->sv2);
1451 grp->fh2 = newSVsv (callback); 1617 grp->sv2 = newSVsv (callback);
1618 grp->feed = aio_grp_feed;
1452 1619
1453 if (grp->fd2 <= 0) 1620 if (grp->int2 <= 0)
1454 grp->fd2 = 2; 1621 grp->int2 = 2;
1455 1622
1456 aio_grp_feed (grp); 1623 eio_grp_limit (grp, grp->int2);
1457} 1624}
1458 1625

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