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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.75 by root, Thu Oct 26 06:44:48 2006 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 2012 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>
26#include <limits.h> 16#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 17#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 18#include <sched.h>
31 19
32#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
33# if __linux 24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
42#ifdef _WIN32
43
44 // perl overrides all those nice libc functions
45
46 #undef malloc
47 #undef free
48 #undef open
49 #undef read
50 #undef write
51 #undef send
52 #undef recv
53 #undef stat
54 #undef lstat
55 #undef fstat
56 #undef truncate
57 #undef ftruncate
58 #undef open
59 #undef link
60 #undef close
61 #undef unlink
62 #undef mkdir
63 #undef rmdir
64 #undef rename
65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
79#else
80
81 #include <sys/time.h>
34# include <sys/sendfile.h> 82 #include <sys/select.h>
35# elif __freebsd 83 #include <unistd.h>
36# include <sys/socket.h> 84 #include <utime.h>
37# include <sys/uio.h> 85 #include <signal.h>
38# elif __hpux 86
39# include <sys/socket.h> 87 #define EIO_STRUCT_STAT Stat_t
40# elif __solaris /* not yet */ 88
41# include <sys/sendfile.h> 89#endif
90
91/*****************************************************************************/
92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
42# else 140# else
43# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 142# endif
45#endif 143#endif
46 144
47/* used for struct dirent, AIX doesn't provide it */ 145/* defines all sorts of constants to 0 unless they are already defined */
48#ifndef NAME_MAX 146#include "def0.h"
49# define NAME_MAX 4096
50#endif
51 147
52#ifndef PTHREAD_STACK_MIN 148#ifndef makedev
53/* care for broken platforms, e.g. windows */ 149# define makedev(maj,min) (((maj) << 8) | (min))
54# define PTHREAD_STACK_MIN 16384
55#endif 150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
56 157
57#if __ia64 158#ifndef PAGESIZE
58# define STACKSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
59#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 160#endif
60# define STACKSIZE PTHREAD_STACK_MIN 161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (fiemap->fm_mapped_extents < count)
200 /* either autosizing succeeded,
201 * or the file had no extents
202 * or we luckily had enough space */
203 break;
204
205 /* some kernels overwrite fm_length, so just reset everything */
206 fiemap->fm_start = req->offs;
207 fiemap->fm_length = req->size;
208 fiemap->fm_flags = req->int2;
209 fiemap->fm_extent_count = 0;
210
211 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212 return;
213
214 /* to work around a kernel bug, we allocate one more */
215 count = fiemap->fm_mapped_extents + 1;
216
217 free (fiemap);
218 }
219
220 req->result = 0;
221
61#else 222#else
62# define STACKSIZE 16384 223 errno = ENOSYS;
63#endif 224#endif
225}
64 226
65/* buffer size for various temporary buffers */ 227/*****************************************************************************/
66#define AIO_BUFSIZE 65536
67
68#define dBUF \
69 char *aio_buf; \
70 LOCK (wrklock); \
71 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
72 UNLOCK (wrklock); \
73 if (!aio_buf) \
74 return -1;
75 228
76enum { 229enum {
77 REQ_QUIT, 230 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
78 REQ_OPEN, REQ_CLOSE,
79 REQ_READ, REQ_WRITE, REQ_READAHEAD,
80 REQ_SENDFILE,
81 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
82 REQ_FSYNC, REQ_FDATASYNC,
83 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
84 REQ_READDIR,
85 REQ_LINK, REQ_SYMLINK,
86 REQ_GROUP, REQ_NOP,
87 REQ_BUSY,
88}; 231};
89 232
90#define AIO_REQ_KLASS "IO::AIO::REQ"
91#define AIO_GRP_KLASS "IO::AIO::GRP"
92
93typedef struct aio_cb
94{
95 struct aio_cb *volatile next;
96
97 SV *data, *callback;
98 SV *fh, *fh2;
99 void *dataptr, *data2ptr;
100 Stat_t *statdata;
101 off_t offset;
102 size_t length;
103 ssize_t result;
104
105 STRLEN dataoffset;
106 int type;
107 int fd, fd2;
108 int errorno;
109 mode_t mode; /* open */
110
111 unsigned char flags;
112 unsigned char pri;
113
114 SV *self; /* the perl counterpart of this request, if any */
115 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
116} aio_cb;
117
118enum {
119 FLAG_CANCELLED = 0x01,
120};
121
122typedef aio_cb *aio_req; 233typedef eio_req *aio_req;
123typedef aio_cb *aio_req_ornot; 234typedef eio_req *aio_req_ornot;
235typedef eio_wd aio_wd;
124 236
125enum { 237static SV *on_next_submit;
126 PRI_MIN = -4, 238static int next_pri = EIO_PRI_DEFAULT;
127 PRI_MAX = 4, 239static int max_outstanding;
128 240
129 DEFAULT_PRI = 0, 241static s_epipe respipe;
130 PRI_BIAS = -PRI_MIN,
131 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
132};
133 242
134static int next_pri = DEFAULT_PRI + PRI_BIAS;
135
136static int started, wanted;
137static volatile int nreqs;
138static int respipe [2];
139
140#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
141# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
142#else
143# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
144#endif
145
146#define LOCK(mutex) pthread_mutex_lock (&(mutex))
147#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
148
149/* worker threasd management */
150static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
151
152typedef struct worker {
153 /* locked by wrklock */
154 struct worker *prev, *next;
155
156 pthread_t tid;
157
158 /* locked by reslock, reqlock or wrklock */
159 aio_req req; /* currently processed request */
160 void *dbuf;
161 DIR *dirp;
162} worker;
163
164static worker wrk_first = { &wrk_first, &wrk_first, 0 };
165
166static void worker_clear (worker *wrk)
167{
168 if (wrk->dirp)
169 {
170 closedir (wrk->dirp);
171 wrk->dirp = 0;
172 }
173
174 if (wrk->dbuf)
175 {
176 free (wrk->dbuf);
177 wrk->dbuf = 0;
178 }
179}
180
181static void worker_free (worker *wrk)
182{
183 wrk->next->prev = wrk->prev;
184 wrk->prev->next = wrk->next;
185
186 free (wrk);
187}
188
189static pthread_mutex_t reslock = AIO_MUTEX_INIT;
190static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
191static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
192
193/*
194 * a somewhat faster data structure might be nice, but
195 * with 8 priorities this actually needs <20 insns
196 * per shift, the most expensive operation.
197 */
198typedef struct {
199 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
200 int size;
201} reqq;
202
203static reqq req_queue;
204static reqq res_queue;
205
206int reqq_push (reqq *q, aio_req req)
207{
208 int pri = req->pri;
209 req->next = 0;
210
211 if (q->qe[pri])
212 {
213 q->qe[pri]->next = req;
214 q->qe[pri] = req;
215 }
216 else
217 q->qe[pri] = q->qs[pri] = req;
218
219 return q->size++;
220}
221
222aio_req reqq_shift (reqq *q)
223{
224 int pri;
225
226 if (!q->size)
227 return 0;
228
229 --q->size;
230
231 for (pri = NUM_PRI; pri--; )
232 {
233 aio_req req = q->qs[pri];
234
235 if (req)
236 {
237 if (!(q->qs[pri] = req->next))
238 q->qe[pri] = 0;
239
240 return req;
241 }
242 }
243
244 abort ();
245}
246
247static int poll_cb ();
248static void req_invoke (aio_req req);
249static void req_free (aio_req req); 243static void req_destroy (aio_req req);
250static void req_cancel (aio_req req); 244static void req_cancel (aio_req req);
251 245
246static void
247want_poll (void)
248{
249 /* write a dummy byte to the pipe so fh becomes ready */
250 s_epipe_signal (&respipe);
251}
252
253static void
254done_poll (void)
255{
256 /* read any signals sent by the worker threads */
257 s_epipe_drain (&respipe);
258}
259
252/* must be called at most once */ 260/* must be called at most once */
253static SV *req_sv (aio_req req, const char *klass) 261static SV *
262req_sv (aio_req req, HV *stash)
254{ 263{
255 if (!req->self) 264 if (!req->self)
256 { 265 {
257 req->self = (SV *)newHV (); 266 req->self = (SV *)newHV ();
258 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 267 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
259 } 268 }
260 269
261 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 270 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
262} 271}
263 272
264static aio_req SvAIO_REQ (SV *sv) 273static SV *
274newSVaio_wd (aio_wd wd)
275{
276 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
277}
278
279static aio_req
280SvAIO_REQ (SV *sv)
265{ 281{
266 MAGIC *mg; 282 MAGIC *mg;
267 283
268 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 284 if (!SvROK (sv)
285 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
286 || (SvSTASH (SvRV (sv)) != aio_grp_stash
287 && SvSTASH (SvRV (sv)) != aio_req_stash
288 && !sv_derived_from (sv, "IO::AIO::REQ")))
269 croak ("object of class " AIO_REQ_KLASS " expected"); 289 croak ("object of class IO::AIO::REQ expected");
270 290
271 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 291 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
272 292
273 return mg ? (aio_req)mg->mg_ptr : 0; 293 return mg ? (aio_req)mg->mg_ptr : 0;
274} 294}
275 295
296static aio_wd
297SvAIO_WD (SV *sv)
298{
299 if (!SvROK (sv)
300 || SvTYPE (SvRV (sv)) != SVt_PVMG
301 || SvSTASH (SvRV (sv)) != aio_wd_stash)
302 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
303
304 return (aio_wd)(long)SvIVX (SvRV (sv));
305}
306
307static void
276static void aio_grp_feed (aio_req grp) 308aio_grp_feed (aio_req grp)
277{ 309{
278 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 310 if (grp->sv2 && SvOK (grp->sv2))
279 { 311 {
280 int old_len = grp->length;
281
282 if (grp->fh2 && SvOK (grp->fh2))
283 {
284 dSP; 312 dSP;
285 313
286 ENTER; 314 ENTER;
287 SAVETMPS; 315 SAVETMPS;
288 PUSHMARK (SP); 316 PUSHMARK (SP);
289 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 317 XPUSHs (req_sv (grp, aio_grp_stash));
290 PUTBACK; 318 PUTBACK;
291 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 319 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
292 SPAGAIN; 320 SPAGAIN;
293 FREETMPS; 321 FREETMPS;
294 LEAVE; 322 LEAVE;
295 }
296
297 /* stop if no progress has been made */
298 if (old_len == grp->length)
299 {
300 SvREFCNT_dec (grp->fh2);
301 grp->fh2 = 0;
302 break;
303 }
304 } 323 }
305} 324}
306 325
307static void aio_grp_dec (aio_req grp) 326static void
327req_submit (eio_req *req)
308{ 328{
309 --grp->length; 329 eio_submit (req);
310 330
311 /* call feeder, if applicable */ 331 if (expect_false (on_next_submit))
312 aio_grp_feed (grp);
313
314 /* finish, if done */
315 if (!grp->length && grp->fd)
316 { 332 {
317 req_invoke (grp); 333 dSP;
318 req_free (grp); 334 SV *cb = sv_2mortal (on_next_submit);
335
336 on_next_submit = 0;
337
338 PUSHMARK (SP);
339 PUTBACK;
340 call_sv (cb, G_DISCARD | G_EVAL);
319 } 341 }
320} 342}
321 343
322static void poll_wait () 344static int
345req_invoke (eio_req *req)
323{ 346{
324 fd_set rfd; 347 if (req->flags & FLAG_SV2_RO_OFF)
348 SvREADONLY_off (req->sv2);
325 349
326 while (nreqs) 350 if (!EIO_CANCELLED (req) && req->callback)
327 { 351 {
328 int size;
329#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
330 LOCK (reslock);
331#endif
332 size = res_queue.size;
333#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
334 UNLOCK (reslock);
335#endif
336
337 if (size)
338 return;
339
340 FD_ZERO(&rfd);
341 FD_SET(respipe [0], &rfd);
342
343 select (respipe [0] + 1, &rfd, 0, 0, 0);
344 }
345}
346
347static void req_invoke (aio_req req)
348{
349 dSP; 352 dSP;
350 353 static SV *sv_result_cache; /* caches the result integer SV */
351 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 354 SV *sv_result;
352 {
353 errno = req->errorno;
354 355
355 ENTER; 356 ENTER;
356 SAVETMPS; 357 SAVETMPS;
357 PUSHMARK (SP); 358 PUSHMARK (SP);
358 EXTEND (SP, 1); 359 EXTEND (SP, 1);
359 360
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 SvIOK_only (sv_result);
367 }
368 else
369 {
370 sv_result = newSViv (req->result);
371 SvREADONLY_on (sv_result);
372 }
373
360 switch (req->type) 374 switch (req->type)
361 { 375 {
376 case EIO_WD_OPEN:
377 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
378 break;
379
362 case REQ_READDIR: 380 case EIO_READDIR:
363 { 381 {
364 SV *rv = &PL_sv_undef; 382 SV *rv = &PL_sv_undef;
365 383
366 if (req->result >= 0) 384 if (req->result >= 0)
367 { 385 {
368 int i; 386 int i;
369 char *buf = req->data2ptr; 387 char *names = (char *)req->ptr2;
388 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
370 AV *av = newAV (); 389 AV *av = newAV ();
371 390
372 av_extend (av, req->result - 1); 391 av_extend (av, req->result - 1);
373 392
374 for (i = 0; i < req->result; ++i) 393 for (i = 0; i < req->result; ++i)
375 { 394 {
376 SV *sv = newSVpv (buf, 0); 395 if (req->int1 & EIO_READDIR_DENTS)
396 {
397 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
377 398
399 if (req->int1 & EIO_READDIR_CUSTOM2)
400 {
401 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
402 AV *avent = newAV ();
403
404 av_extend (avent, 2);
405
406 if (!sv_type [ent->type])
407 {
408 sv_type [ent->type] = newSViv (ent->type);
409 SvREADONLY_on (sv_type [ent->type]);
410 }
411
412 av_store (avent, 0, namesv);
413 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
414 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
415
416 av_store (av, i, newRV_noinc ((SV *)avent));
417 }
418 else
378 av_store (av, i, sv); 419 av_store (av, i, namesv);
420
421 ++ent;
422 }
423 else
424 {
425 SV *name = newSVpv (names, 0);
426 av_store (av, i, name);
379 buf += SvCUR (sv) + 1; 427 names += SvCUR (name) + 1;
428 }
380 } 429 }
381 430
382 rv = sv_2mortal (newRV_noinc ((SV *)av)); 431 rv = sv_2mortal (newRV_noinc ((SV *)av));
383 } 432 }
384 433
385 PUSHs (rv); 434 PUSHs (rv);
435
436 if (req->int1 & EIO_READDIR_CUSTOM1)
437 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
386 } 438 }
387 break; 439 break;
388 440
389 case REQ_OPEN: 441 case EIO_OPEN:
390 { 442 {
391 /* convert fd to fh */ 443 /* convert fd to fh */
392 SV *fh; 444 SV *fh = &PL_sv_undef;
393 445
394 PUSHs (sv_2mortal (newSViv (req->result))); 446 if (req->result >= 0)
395 PUTBACK; 447 {
396 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 448 GV *gv = (GV *)sv_newmortal ();
397 SPAGAIN; 449 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
450 char sym [64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
454 gv_init (gv, aio_stash, sym, symlen, 0);
398 455
399 fh = SvREFCNT_inc (POPs); 456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 (int)req->result
462 );
400 463
464 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
465 fh = (SV *)gv;
466 }
467
401 PUSHMARK (SP); 468 PUSHs (fh);
402 XPUSHs (sv_2mortal (fh));
403 } 469 }
404 break; 470 break;
405 471
472 case EIO_STATVFS:
473 case EIO_FSTATVFS:
474 {
475 SV *rv = &PL_sv_undef;
476
477#ifndef _WIN32
478 if (req->result >= 0)
479 {
480 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
481 HV *hv = newHV ();
482
483 rv = sv_2mortal (newRV_noinc ((SV *)hv));
484
485 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
486 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
487 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
488 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
489 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
490 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
491 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
492 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
493 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
494 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
495 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
496 }
497#endif
498
499 PUSHs (rv);
500 }
501
502 break;
503
406 case REQ_GROUP: 504 case EIO_GROUP:
407 req->fd = 2; /* mark group as finished */ 505 req->int1 = 2; /* mark group as finished */
408 506
409 if (req->data) 507 if (req->sv1)
410 { 508 {
411 int i; 509 int i;
412 AV *av = (AV *)req->data; 510 AV *av = (AV *)req->sv1;
413 511
414 EXTEND (SP, AvFILL (av) + 1); 512 EXTEND (SP, AvFILL (av) + 1);
415 for (i = 0; i <= AvFILL (av); ++i) 513 for (i = 0; i <= AvFILL (av); ++i)
416 PUSHs (*av_fetch (av, i, 0)); 514 PUSHs (*av_fetch (av, i, 0));
417 } 515 }
418 break; 516 break;
419 517
420 case REQ_NOP: 518 case EIO_NOP:
421 case REQ_BUSY: 519 case EIO_BUSY:
422 break; 520 break;
423 521
522 case EIO_READLINK:
523 case EIO_REALPATH:
524 if (req->result > 0)
525 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
526 break;
527
528 case EIO_STAT:
529 case EIO_LSTAT:
530 case EIO_FSTAT:
531 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
532
533 if (!(PL_laststatval = req->result))
534 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
535 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
536
537 PUSHs (sv_result);
538 break;
539
540 case EIO_SEEK:
541 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
542 break;
543
544 case EIO_READ:
545 {
546 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
547 *SvEND (req->sv2) = 0;
548 SvPOK_only (req->sv2);
549 SvSETMAGIC (req->sv2);
550 PUSHs (sv_result);
551 }
552 break;
553
554 case EIO_CUSTOM:
555 if (req->feed == fiemap)
556 {
557#if HAVE_FIEMAP
558 if (!req->result)
559 {
560 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
561
562 if (fiemap->fm_extent_count)
563 {
564 AV *av = newAV ();
565 int i;
566
567 while (fiemap->fm_mapped_extents)
568 {
569 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
570 AV *ext_av = newAV ();
571
572 av_store (ext_av, 3, newSVuv (extent->fe_flags));
573 av_store (ext_av, 2, newSVval64 (extent->fe_length));
574 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
575 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
576
577 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
578 }
579
580 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
581 }
582 else
583 {
584 SvIV_set (sv_result, fiemap->fm_mapped_extents);
585 PUSHs (sv_result);
586 }
587 }
588#endif
589 }
590 else
591 PUSHs (sv_result);
592 break;
593
594 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
595 if (req->result > 0)
596 SvIV_set (sv_result, 0);
597 /* FALLTHROUGH */
598
424 default: 599 default:
425 PUSHs (sv_2mortal (newSViv (req->result))); 600 PUSHs (sv_result);
426 break; 601 break;
427 } 602 }
428 603
604 errno = req->errorno;
429 605
430 PUTBACK; 606 PUTBACK;
431 call_sv (req->callback, G_VOID | G_EVAL); 607 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
432 SPAGAIN; 608 SPAGAIN;
609
610 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
611 SvREFCNT_dec (sv_result);
612 else
613 sv_result_cache = sv_result;
433 614
434 FREETMPS; 615 FREETMPS;
435 LEAVE; 616 LEAVE;
617
618 PUTBACK;
436 } 619 }
437 620
438 if (req->grp) 621 return !!SvTRUE (ERRSV);
439 {
440 aio_req grp = req->grp;
441
442 /* unlink request */
443 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
444 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
445
446 if (grp->grp_first == req)
447 grp->grp_first = req->grp_next;
448
449 aio_grp_dec (grp);
450 }
451
452 if (SvTRUE (ERRSV))
453 {
454 req_free (req);
455 croak (0);
456 }
457} 622}
458 623
459static void req_free (aio_req req) 624static void
625req_destroy (aio_req req)
460{ 626{
461 if (req->self) 627 if (req->self)
462 { 628 {
463 sv_unmagic (req->self, PERL_MAGIC_ext); 629 sv_unmagic (req->self, PERL_MAGIC_ext);
464 SvREFCNT_dec (req->self); 630 SvREFCNT_dec (req->self);
465 } 631 }
466 632
467 SvREFCNT_dec (req->data);
468 SvREFCNT_dec (req->fh); 633 SvREFCNT_dec (req->sv1);
469 SvREFCNT_dec (req->fh2); 634 SvREFCNT_dec (req->sv2);
635 SvREFCNT_dec (req->sv3);
636 SvREFCNT_dec (req->sv4);
470 SvREFCNT_dec (req->callback); 637 SvREFCNT_dec (req->callback);
471 Safefree (req->statdata);
472 638
473 if (req->type == REQ_READDIR)
474 free (req->data2ptr);
475
476 Safefree (req); 639 free (req);
477} 640}
478 641
642static void
479static void req_cancel_subs (aio_req grp) 643req_cancel_subs (aio_req grp)
480{ 644{
481 aio_req sub;
482
483 if (grp->type != REQ_GROUP) 645 if (grp->type != EIO_GROUP)
484 return; 646 return;
485 647
486 SvREFCNT_dec (grp->fh2); 648 SvREFCNT_dec (grp->sv2);
487 grp->fh2 = 0; 649 grp->sv2 = 0;
488 650
489 for (sub = grp->grp_first; sub; sub = sub->grp_next) 651 eio_grp_cancel (grp);
490 req_cancel (sub);
491} 652}
492 653
493static void req_cancel (aio_req req) 654static void ecb_cold
655create_respipe (void)
494{ 656{
495 req->flags |= FLAG_CANCELLED; 657 if (s_epipe_renew (&respipe))
496 658 croak ("IO::AIO: unable to initialize result pipe");
497 req_cancel_subs (req);
498} 659}
499 660
500static int poll_cb () 661static void
662poll_wait (void)
501{ 663{
502 dSP; 664 while (eio_nreqs ())
503 int count = 0; 665 {
504 int do_croak = 0; 666 int size;
505 aio_req req;
506 667
668 X_LOCK (reslock);
669 size = res_queue.size;
670 X_UNLOCK (reslock);
671
672 if (size)
673 return;
674
675 etp_maybe_start_thread ();
676
677 s_epipe_wait (&respipe);
678 }
679}
680
681static int
682poll_cb (void)
683{
507 for (;;) 684 for (;;)
508 { 685 {
509 LOCK (reslock); 686 int res = eio_poll ();
510 req = reqq_shift (&res_queue);
511 687
512 if (req) 688 if (res > 0)
689 croak (0);
690
691 if (!max_outstanding || max_outstanding > eio_nreqs ())
692 return res;
693
694 poll_wait ();
695 }
696}
697
698static void ecb_cold
699reinit (void)
700{
701 create_respipe ();
702
703 if (eio_init (want_poll, done_poll) < 0)
704 croak ("IO::AIO: unable to initialise eio library");
705}
706
707/*****************************************************************************/
708
709#if !_POSIX_MAPPED_FILES
710# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
711# define munmap(addr,length) EIO_ENOSYS ()
712#endif
713
714#if !_POSIX_MEMORY_PROTECTION
715# define mprotect(addr,len,prot) EIO_ENOSYS ()
716# define PROT_NONE 0
717# define PROT_WRITE 0
718# define MAP_PRIVATE 0
719# define MAP_SHARED 0
720# define MAP_FIXED 0
721#endif
722
723#define MMAP_MAGIC PERL_MAGIC_ext
724
725static int ecb_cold
726mmap_free (pTHX_ SV *sv, MAGIC *mg)
727{
728 int old_errno = errno;
729 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
730 errno = old_errno;
731
732 mg->mg_obj = 0; /* just in case */
733
734 SvREADONLY_off (sv);
735
736 if (SvPVX (sv) != mg->mg_ptr)
737 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
738
739 SvCUR_set (sv, 0);
740 SvPVX (sv) = 0;
741 SvOK_off (sv);
742
743 return 0;
744}
745
746static MGVTBL mmap_vtbl = {
747 0, 0, 0, 0, mmap_free
748};
749
750/*****************************************************************************/
751
752static SV *
753get_cb (SV *cb_sv)
754{
755 SvGETMAGIC (cb_sv);
756 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
757}
758
759static aio_req ecb_noinline
760dreq (SV *callback)
761{
762 SV *cb_cv;
763 aio_req req;
764 int req_pri = next_pri;
765 next_pri = EIO_PRI_DEFAULT;
766
767 cb_cv = get_cb (callback);
768
769 req = calloc (sizeof (*req), 1);
770 if (!req)
771 croak ("out of memory during eio_req allocation");
772
773 req->callback = SvREFCNT_inc (cb_cv);
774 req->pri = req_pri;
775
776 return req;
777}
778
779#define dREQ \
780 aio_req req = dreq (callback); \
781
782#define REQ_SEND \
783 PUTBACK; \
784 req_submit (req); \
785 SPAGAIN; \
786 \
787 if (GIMME_V != G_VOID) \
788 XPUSHs (req_sv (req, aio_req_stash));
789
790ecb_inline void
791req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
792{
793 if (expect_false (SvROK (path)))
794 {
795 SV *rv = SvRV (path);
796 SV *wdob;
797
798 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
513 { 799 {
514 if (!res_queue.size) 800 path = AvARRAY (rv)[1];
801 wdob = AvARRAY (rv)[0];
802
803 if (SvOK (wdob))
515 { 804 {
516 /* read any signals sent by the worker threads */ 805 *wd = SvAIO_WD (wdob);
517 char buf [32]; 806 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
518 while (read (respipe [0], buf, 32) == 32)
519 ;
520 } 807 }
808 else
809 *wd = EIO_INVALID_WD;
521 } 810 }
522 811 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
523 UNLOCK (reslock);
524
525 if (!req)
526 break;
527
528 --nreqs;
529
530 if (req->type == REQ_QUIT)
531 started--;
532 else if (req->type == REQ_GROUP && req->length)
533 { 812 {
534 req->fd = 1; /* mark request as delayed */ 813 *wd = (aio_wd)(long)SvIVX (rv);
535 continue; 814 *wdsv = SvREFCNT_inc_NN (rv);
815 *ptr = ".";
816 return; /* path set to "." */
536 } 817 }
537 else 818 else
538 { 819 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
539 if (req->type == REQ_READ)
540 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
541
542 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
543 SvREADONLY_off (req->data);
544
545 if (req->statdata)
546 {
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result;
549 PL_statcache = *(req->statdata);
550 }
551
552 req_invoke (req);
553
554 count++;
555 }
556
557 req_free (req);
558 } 820 }
559 821
560 return count; 822 *pathsv = newSVsv (path);
823 *ptr = SvPVbyte_nolen (*pathsv);
561} 824}
562 825
563static void *aio_proc(void *arg); 826static void ecb_noinline
564 827req_set_path1 (aio_req req, SV *path)
565static void start_thread (void)
566{ 828{
567 sigset_t fullsigset, oldsigset; 829 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
568 pthread_attr_t attr; 830}
569 831
570 worker *wrk = calloc (1, sizeof (worker)); 832static void ecb_noinline
833req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
834{
835 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
571 836
572 if (!wrk) 837 switch (SvTYPE (rv))
573 croak ("unable to allocate worker thread data");
574
575 pthread_attr_init (&attr);
576 pthread_attr_setstacksize (&attr, STACKSIZE);
577 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
578
579 sigfillset (&fullsigset);
580
581 LOCK (wrklock);
582 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
583
584 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
585 { 838 {
586 wrk->prev = &wrk_first; 839 case SVt_PVIO:
587 wrk->next = wrk_first.next; 840 case SVt_PVLV:
588 wrk_first.next->prev = wrk; 841 case SVt_PVGV:
589 wrk_first.next = wrk; 842 req->type = type_fh;
590 started++; 843 req->sv1 = newSVsv (fh_or_path);
844 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
845 break;
846
847 default:
848 req->type = type_path;
849 req_set_path1 (req, fh_or_path);
850 break;
591 } 851 }
592 else
593 free (wrk);
594
595 sigprocmask (SIG_SETMASK, &oldsigset, 0);
596 UNLOCK (wrklock);
597} 852}
598 853
599static void req_send (aio_req req) 854XS(boot_IO__AIO) ecb_cold;
600{
601 while (started < wanted && nreqs >= started)
602 start_thread ();
603 855
604 ++nreqs; 856MODULE = IO::AIO PACKAGE = IO::AIO
605 857
606 LOCK (reqlock); 858PROTOTYPES: ENABLE
607 reqq_push (&req_queue, req);
608 pthread_cond_signal (&reqwait);
609 UNLOCK (reqlock);
610}
611 859
612static void end_thread (void) 860BOOT:
613{ 861{
614 aio_req req; 862 static const struct {
863 const char *name;
864 IV iv;
865 } *civ, const_iv[] = {
866# define const_niv(name, value) { # name, (IV) value },
867# define const_iv(name) { # name, (IV) name },
868# define const_eio(name) { # name, (IV) EIO_ ## name },
615 869
616 Newz (0, req, 1, aio_cb); 870 /* you have to re-run ./gendef0 after adding/Removing any constants here */
617 871
618 req->type = REQ_QUIT; 872 const_iv (ENOSYS)
619 req->pri = PRI_MAX + PRI_BIAS; 873 const_iv (EXDEV)
874 const_iv (EBADR)
620 875
621 req_send (req); 876 const_iv (O_RDONLY)
622} 877 const_iv (O_WRONLY)
878 const_iv (O_RDWR)
879 const_iv (O_CREAT)
880 const_iv (O_TRUNC)
881 const_iv (O_EXCL)
882 const_iv (O_APPEND)
623 883
624static void min_parallel (int nthreads) 884 const_iv (O_ASYNC)
625{ 885 const_iv (O_DIRECT)
626 if (wanted < nthreads) 886 const_iv (O_NOATIME)
627 wanted = nthreads;
628}
629 887
630static void max_parallel (int nthreads) 888 const_iv (O_CLOEXEC)
631{ 889 const_iv (O_NOCTTY)
632 int cur = started; 890 const_iv (O_NOFOLLOW)
891 const_iv (O_NONBLOCK)
892 const_iv (O_EXEC)
893 const_iv (O_SEARCH)
894 const_iv (O_DIRECTORY)
895 const_iv (O_DSYNC)
896 const_iv (O_RSYNC)
897 const_iv (O_SYNC)
898 const_iv (O_TTY_INIT)
633 899
634 if (wanted > nthreads) 900 const_iv (S_IFIFO)
635 wanted = nthreads; 901 const_iv (S_IFCHR)
902 const_iv (S_IFBLK)
903 const_iv (S_IFLNK)
904 const_iv (S_IFREG)
905 const_iv (S_IFDIR)
906 const_iv (S_IFWHT)
907 const_iv (S_IFSOCK)
908 const_iv (S_IFMT)
636 909
637 while (cur > wanted) 910 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
638 { 911 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
639 end_thread (); 912 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
640 cur--; 913 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
641 } 914 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
915 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
642 916
643 while (started > wanted) 917 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
644 { 918 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
645 poll_wait (); 919 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
646 poll_cb (); 920 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
647 } 921 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
648}
649 922
650static void create_pipe () 923 const_iv (ST_RDONLY)
651{ 924 const_iv (ST_NOSUID)
652 if (pipe (respipe)) 925 const_iv (ST_NODEV)
653 croak ("unable to initialize result pipe"); 926 const_iv (ST_NOEXEC)
927 const_iv (ST_SYNCHRONOUS)
928 const_iv (ST_MANDLOCK)
929 const_iv (ST_WRITE)
930 const_iv (ST_APPEND)
931 const_iv (ST_IMMUTABLE)
932 const_iv (ST_NOATIME)
933 const_iv (ST_NODIRATIME)
934 const_iv (ST_RELATIME)
654 935
655 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 936 const_iv (PROT_NONE)
656 croak ("cannot set result pipe to nonblocking mode"); 937 const_iv (PROT_EXEC)
938 const_iv (PROT_READ)
939 const_iv (PROT_WRITE)
657 940
658 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 941 /*const_iv (MAP_FIXED)*/
659 croak ("cannot set result pipe to nonblocking mode"); 942 const_iv (MAP_PRIVATE)
660} 943 const_iv (MAP_SHARED)
944 const_iv (MAP_ANONYMOUS)
661 945
662/*****************************************************************************/ 946 /* linuxish */
663/* work around various missing functions */ 947 const_iv (MAP_HUGETLB)
948 const_iv (MAP_LOCKED)
949 const_iv (MAP_NORESERVE)
950 const_iv (MAP_POPULATE)
951 const_iv (MAP_NONBLOCK)
664 952
665#if !HAVE_PREADWRITE 953 const_iv (FIEMAP_FLAG_SYNC)
666# define pread aio_pread 954 const_iv (FIEMAP_FLAG_XATTR)
667# define pwrite aio_pwrite 955 const_iv (FIEMAP_FLAGS_COMPAT)
956 const_iv (FIEMAP_EXTENT_LAST)
957 const_iv (FIEMAP_EXTENT_UNKNOWN)
958 const_iv (FIEMAP_EXTENT_DELALLOC)
959 const_iv (FIEMAP_EXTENT_ENCODED)
960 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
961 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
962 const_iv (FIEMAP_EXTENT_DATA_INLINE)
963 const_iv (FIEMAP_EXTENT_DATA_TAIL)
964 const_iv (FIEMAP_EXTENT_UNWRITTEN)
965 const_iv (FIEMAP_EXTENT_MERGED)
966 const_iv (FIEMAP_EXTENT_SHARED)
668 967
669/* 968 const_iv (SPLICE_F_MOVE)
670 * make our pread/pwrite safe against themselves, but not against 969 const_iv (SPLICE_F_NONBLOCK)
671 * normal read/write by using a mutex. slows down execution a lot, 970 const_iv (SPLICE_F_MORE)
672 * but that's your problem, not mine. 971 const_iv (SPLICE_F_GIFT)
673 */
674static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
675 972
676static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 973 const_iv (SEEK_DATA)
677{ 974 const_iv (SEEK_HOLE)
678 ssize_t res;
679 off_t ooffset;
680 975
681 LOCK (preadwritelock); 976 /* libeio constants */
682 ooffset = lseek (fd, 0, SEEK_CUR); 977 const_eio (SEEK_SET)
683 lseek (fd, offset, SEEK_SET); 978 const_eio (SEEK_CUR)
684 res = read (fd, buf, count); 979 const_eio (SEEK_END)
685 lseek (fd, ooffset, SEEK_SET);
686 UNLOCK (preadwritelock);
687 980
688 return res; 981 const_eio (MCL_FUTURE)
689} 982 const_eio (MCL_CURRENT)
690 983
691static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 984 const_eio (MS_ASYNC)
692{ 985 const_eio (MS_INVALIDATE)
693 ssize_t res; 986 const_eio (MS_SYNC)
694 off_t ooffset;
695 987
696 LOCK (preadwritelock); 988 const_eio (MT_MODIFY)
697 ooffset = lseek (fd, 0, SEEK_CUR);
698 lseek (fd, offset, SEEK_SET);
699 res = write (fd, buf, count);
700 lseek (fd, offset, SEEK_SET);
701 UNLOCK (preadwritelock);
702 989
703 return res; 990 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
704} 991 const_eio (SYNC_FILE_RANGE_WRITE)
705#endif 992 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
706 993
707#if !HAVE_FDATASYNC 994 const_eio (FALLOC_FL_KEEP_SIZE)
708# define fdatasync fsync 995 const_eio (FALLOC_FL_PUNCH_HOLE)
709#endif
710 996
711#if !HAVE_READAHEAD 997 const_eio (READDIR_DENTS)
712# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 998 const_eio (READDIR_DIRS_FIRST)
999 const_eio (READDIR_STAT_ORDER)
1000 const_eio (READDIR_FOUND_UNKNOWN)
713 1001
714static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1002 const_eio (DT_UNKNOWN)
715{ 1003 const_eio (DT_FIFO)
716 dBUF; 1004 const_eio (DT_CHR)
717 1005 const_eio (DT_DIR)
718 while (count > 0) 1006 const_eio (DT_BLK)
719 { 1007 const_eio (DT_REG)
720 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1008 const_eio (DT_LNK)
721 1009 const_eio (DT_SOCK)
722 pread (fd, aio_buf, len, offset); 1010 const_eio (DT_WHT)
723 offset += len;
724 count -= len;
725 }
726
727 errno = 0;
728}
729
730#endif
731
732#if !HAVE_READDIR_R
733# define readdir_r aio_readdir_r
734
735static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
736
737static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
738{
739 struct dirent *e;
740 int errorno;
741
742 LOCK (readdirlock);
743
744 e = readdir (dirp);
745 errorno = errno;
746
747 if (e)
748 {
749 *res = ent;
750 strcpy (ent->d_name, e->d_name);
751 }
752 else
753 *res = 0;
754
755 UNLOCK (readdirlock);
756
757 errno = errorno;
758 return e ? 0 : -1;
759}
760#endif
761
762/* sendfile always needs emulation */
763static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
764{
765 ssize_t res;
766
767 if (!count)
768 return 0;
769
770#if HAVE_SENDFILE
771# if __linux
772 res = sendfile (ofd, ifd, &offset, count);
773
774# elif __freebsd
775 /*
776 * Of course, the freebsd sendfile is a dire hack with no thoughts
777 * wasted on making it similar to other I/O functions.
778 */
779 {
780 off_t sbytes;
781 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
782
783 if (res < 0 && sbytes)
784 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
785 res = sbytes;
786 } 1011 };
787 1012
788# elif __hpux 1013 aio_stash = gv_stashpv ("IO::AIO" , 1);
789 res = sendfile (ofd, ifd, offset, count, 0, 0); 1014 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1015 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1016 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
790 1017
791# elif __solaris 1018 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
792 { 1019 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
793 struct sendfilevec vec;
794 size_t sbytes;
795 1020
796 vec.sfv_fd = ifd; 1021 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
797 vec.sfv_flag = 0;
798 vec.sfv_off = offset;
799 vec.sfv_len = count;
800 1022
801 res = sendfilev (ofd, &vec, 1, &sbytes); 1023 reinit ();
1024}
802 1025
803 if (res < 0 && sbytes) 1026void
1027reinit ()
1028 PROTOTYPE:
1029
1030void
1031max_poll_reqs (unsigned int nreqs)
1032 PROTOTYPE: $
1033 CODE:
1034 eio_set_max_poll_reqs (nreqs);
1035
1036void
1037max_poll_time (double nseconds)
1038 PROTOTYPE: $
1039 CODE:
1040 eio_set_max_poll_time (nseconds);
1041
1042void
1043min_parallel (unsigned int nthreads)
1044 PROTOTYPE: $
1045 CODE:
1046 eio_set_min_parallel (nthreads);
1047
1048void
1049max_parallel (unsigned int nthreads)
1050 PROTOTYPE: $
1051 CODE:
1052 eio_set_max_parallel (nthreads);
1053
1054void
1055max_idle (unsigned int nthreads)
1056 PROTOTYPE: $
1057 CODE:
1058 eio_set_max_idle (nthreads);
1059
1060void
1061idle_timeout (unsigned int seconds)
1062 PROTOTYPE: $
1063 CODE:
1064 eio_set_idle_timeout (seconds);
1065
1066void
1067max_outstanding (unsigned int maxreqs)
1068 PROTOTYPE: $
1069 CODE:
1070 max_outstanding = maxreqs;
1071
1072void
1073aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1074 PPCODE:
1075{
1076 dREQ;
1077
1078 req->type = EIO_WD_OPEN;
1079 req_set_path1 (req, pathname);
1080
1081 REQ_SEND;
1082}
1083
1084void
1085aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1086 PPCODE:
1087{
1088 dREQ;
1089
1090 req->type = EIO_OPEN;
1091 req_set_path1 (req, pathname);
1092 req->int1 = flags;
1093 req->int2 = mode;
1094
1095 REQ_SEND;
1096}
1097
1098void
1099aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1100 ALIAS:
1101 aio_fsync = EIO_FSYNC
1102 aio_fdatasync = EIO_FDATASYNC
1103 aio_syncfs = EIO_SYNCFS
1104 PPCODE:
1105{
1106 int fd = s_fileno_croak (fh, 0);
1107 dREQ;
1108
1109 req->type = ix;
1110 req->sv1 = newSVsv (fh);
1111 req->int1 = fd;
1112
1113 REQ_SEND;
1114}
1115
1116void
1117aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1118 PPCODE:
1119{
1120 int fd = s_fileno_croak (fh, 0);
1121 dREQ;
1122
1123 req->type = EIO_SYNC_FILE_RANGE;
1124 req->sv1 = newSVsv (fh);
1125 req->int1 = fd;
1126 req->offs = offset;
804 res = sbytes; 1127 req->size = nbytes;
805 } 1128 req->int2 = flags;
806 1129
807# endif 1130 REQ_SEND;
1131}
1132
1133void
1134aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1135 PPCODE:
1136{
1137 int fd = s_fileno_croak (fh, 0);
1138 dREQ;
1139
1140 req->type = EIO_FALLOCATE;
1141 req->sv1 = newSVsv (fh);
1142 req->int1 = fd;
1143 req->int2 = mode;
1144 req->offs = offset;
1145 req->size = len;
1146
1147 REQ_SEND;
1148}
1149
1150void
1151aio_close (SV *fh, SV *callback=&PL_sv_undef)
1152 PPCODE:
1153{
1154 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1155 int fd = s_fileno_croak (fh, 0);
1156 dREQ;
1157
1158 if (expect_false (close_fd < 0))
1159 {
1160 int pipefd [2];
1161
1162 if (
1163#ifdef _WIN32
1164 _pipe (pipefd, 1, _O_BINARY) < 0
808#else 1165#else
809 res = -1; 1166 pipe (pipefd) < 0
810 errno = ENOSYS; 1167 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
811#endif 1168#endif
812 1169 || close (pipefd [1]) < 0
813 if (res < 0
814 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
815#if __solaris
816 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
817#endif
818 )
819 )
820 {
821 /* emulate sendfile. this is a major pain in the ass */
822 dBUF;
823
824 res = 0;
825
826 while (count)
827 {
828 ssize_t cnt;
829
830 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
831
832 if (cnt <= 0)
833 { 1170 )
834 if (cnt && !res) res = -1; 1171 abort (); /*D*/
835 break;
836 }
837 1172
838 cnt = write (ofd, aio_buf, cnt); 1173 close_fd = pipefd [0];
839
840 if (cnt <= 0)
841 {
842 if (cnt && !res) res = -1;
843 break;
844 }
845
846 offset += cnt;
847 res += cnt;
848 count -= cnt;
849 }
850 }
851
852 return res;
853}
854
855/* read a full directory */
856static void scandir_ (aio_req req, worker *self)
857{
858 DIR *dirp;
859 union
860 {
861 struct dirent d;
862 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
863 } *u;
864 struct dirent *entp;
865 char *name, *names;
866 int memlen = 4096;
867 int memofs = 0;
868 int res = 0;
869 int errorno;
870
871 LOCK (wrklock);
872 self->dirp = dirp = opendir (req->dataptr);
873 self->dbuf = u = malloc (sizeof (*u));
874 UNLOCK (wrklock);
875
876 req->data2ptr = names = malloc (memlen);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 {
891 int len = strlen (name) + 1;
892
893 res++;
894
895 while (memofs + len > memlen)
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 } 1174 }
909 }
910 1175
911 if (errno) 1176 req->type = EIO_DUP2;
912 res = -1; 1177 req->int1 = close_fd;
913 1178 req->sv2 = newSVsv (fh);
914 req->result = res; 1179 req->int2 = fd;
915}
916 1180
917/*****************************************************************************/ 1181 REQ_SEND;
918
919static void *aio_proc (void *thr_arg)
920{
921 aio_req req;
922 int type;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 {
931 self->req = req = reqq_shift (&req_queue);
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
949
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 }
988
989 req->errorno = errno;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009} 1182}
1010 1183
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068}
1069
1070#define dREQ \
1071 aio_req req; \
1072 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \
1074 \
1075 if (SvOK (callback) && !SvROK (callback)) \
1076 croak ("callback must be undef or of reference type"); \
1077 \
1078 Newz (0, req, 1, aio_cb); \
1079 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \
1081 \
1082 req->callback = newSVsv (callback); \
1083 req->pri = req_pri
1084
1085#define REQ_SEND \
1086 req_send (req); \
1087 \
1088 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1090
1091MODULE = IO::AIO PACKAGE = IO::AIO
1092
1093PROTOTYPES: ENABLE
1094
1095BOOT:
1096{
1097 HV *stash = gv_stashpv ("IO::AIO", 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101
1102 create_pipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105
1106void 1184void
1107min_parallel (nthreads) 1185aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1108 int nthreads 1186 PPCODE:
1109 PROTOTYPE: $
1110
1111void
1112max_parallel (nthreads)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$
1123 PPCODE:
1124{ 1187{
1188 int fd = s_fileno_croak (fh, 0);
1125 dREQ; 1189 dREQ;
1126 1190
1127 req->type = REQ_OPEN; 1191 req->type = EIO_SEEK;
1128 req->data = newSVsv (pathname); 1192 req->sv1 = newSVsv (fh);
1129 req->dataptr = SvPVbyte_nolen (req->data); 1193 req->int1 = fd;
1130 req->fd = flags; 1194 req->offs = SvVAL64 (offset);
1131 req->mode = mode; 1195 req->int2 = whence;
1132 1196
1133 REQ_SEND; 1197 REQ_SEND;
1134} 1198}
1135 1199
1136void 1200void
1137aio_close (fh,callback=&PL_sv_undef) 1201aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 1202 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC
1145 PPCODE:
1146{
1147 dREQ;
1148
1149 req->type = ix;
1150 req->fh = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152
1153 REQ_SEND (req);
1154}
1155
1156void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS:
1165 aio_read = REQ_READ 1203 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 1204 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 1205 PPCODE:
1169{ 1206{
1170 aio_req req;
1171 STRLEN svlen; 1207 STRLEN svlen;
1208 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 1209 char *svptr = SvPVbyte (data, svlen);
1173 1210 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 1211
1177 if (dataoffset < 0) 1212 if (dataoffset < 0)
1178 dataoffset += svlen; 1213 dataoffset += svlen;
1179 1214
1180 if (dataoffset < 0 || dataoffset > svlen) 1215 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 1216 croak ("dataoffset outside of data scalar");
1182 1217
1183 if (ix == REQ_WRITE) 1218 if (ix == EIO_WRITE)
1184 { 1219 {
1185 /* write: check length and adjust. */ 1220 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 1221 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 1222 len = svlen - dataoffset;
1188 } 1223 }
1189 else 1224 else
1190 { 1225 {
1191 /* read: grow scalar as necessary */ 1226 /* read: check type and grow scalar as necessary */
1227 SvUPGRADE (data, SVt_PV);
1228 if (SvLEN (data) >= SvCUR (data))
1192 svptr = SvGROW (data, length + dataoffset); 1229 svptr = SvGROW (data, len + dataoffset + 1);
1230 else if (SvCUR (data) < len + dataoffset)
1231 croak ("length + dataoffset outside of scalar, and cannot grow");
1193 } 1232 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 1233
1198 { 1234 {
1199 dREQ; 1235 dREQ;
1200 1236
1201 req->type = ix; 1237 req->type = ix;
1202 req->fh = newSVsv (fh); 1238 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1239 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 1240 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 1241 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 1242 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 1243 req->ptr2 = (char *)svptr + dataoffset;
1244 req->stroffset = dataoffset;
1209 1245
1210 if (!SvREADONLY (data)) 1246 if (!SvREADONLY (data))
1211 { 1247 {
1212 SvREADONLY_on (data); 1248 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 1249 req->flags |= FLAG_SV2_RO_OFF;
1214 } 1250 }
1215 1251
1216 REQ_SEND; 1252 REQ_SEND;
1217 } 1253 }
1218} 1254}
1219 1255
1220void 1256void
1221aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1257aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1222 SV * out_fh 1258 ALIAS:
1223 SV * in_fh 1259 aio_readlink = EIO_READLINK
1224 UV in_offset 1260 aio_realpath = EIO_REALPATH
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 1261 PPCODE:
1229{ 1262{
1263 dREQ;
1264
1265 req->type = ix;
1266 req_set_path1 (req, pathname);
1267
1268 REQ_SEND;
1269}
1270
1271void
1272aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1273 PPCODE:
1274{
1275 int ifd = s_fileno_croak (in_fh , 0);
1276 int ofd = s_fileno_croak (out_fh, 1);
1230 dREQ; 1277 dREQ;
1231 1278
1232 req->type = REQ_SENDFILE; 1279 req->type = EIO_SENDFILE;
1233 req->fh = newSVsv (out_fh); 1280 req->sv1 = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1281 req->int1 = ofd;
1235 req->fh2 = newSVsv (in_fh); 1282 req->sv2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1283 req->int2 = ifd;
1237 req->offset = in_offset; 1284 req->offs = in_offset;
1238 req->length = length; 1285 req->size = length;
1239 1286
1240 REQ_SEND; 1287 REQ_SEND;
1241} 1288}
1242 1289
1243void 1290void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1291aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE: 1292 PPCODE:
1251{ 1293{
1294 int fd = s_fileno_croak (fh, 0);
1252 dREQ; 1295 dREQ;
1253 1296
1254 req->type = REQ_READAHEAD; 1297 req->type = EIO_READAHEAD;
1255 req->fh = newSVsv (fh); 1298 req->sv1 = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1299 req->int1 = fd;
1257 req->offset = offset; 1300 req->offs = offset;
1258 req->length = length; 1301 req->size = length;
1259 1302
1260 REQ_SEND; 1303 REQ_SEND;
1261} 1304}
1262 1305
1263void 1306void
1264aio_stat (fh_or_path,callback=&PL_sv_undef) 1307aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS: 1308 ALIAS:
1268 aio_stat = REQ_STAT 1309 aio_stat = EIO_STAT
1269 aio_lstat = REQ_LSTAT 1310 aio_lstat = EIO_LSTAT
1311 aio_statvfs = EIO_STATVFS
1270 PPCODE: 1312 PPCODE:
1271{ 1313{
1272 dREQ; 1314 dREQ;
1273 1315
1274 New (0, req->statdata, 1, Stat_t); 1316 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1275 if (!req->statdata)
1276 {
1277 req_free (req);
1278 croak ("out of memory during aio_req->statdata allocation");
1279 }
1280
1281 if (SvPOK (fh_or_path))
1282 {
1283 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data);
1286 }
1287 else
1288 {
1289 req->type = REQ_FSTAT;
1290 req->fh = newSVsv (fh_or_path);
1291 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292 }
1293 1317
1294 REQ_SEND; 1318 REQ_SEND;
1295} 1319}
1296 1320
1321UV
1322major (UV dev)
1323 ALIAS:
1324 minor = 1
1325 CODE:
1326 RETVAL = ix ? major (dev) : minor (dev);
1327 OUTPUT:
1328 RETVAL
1329
1330UV
1331makedev (UV maj, UV min)
1332 CODE:
1333 RETVAL = makedev (maj, min);
1334 OUTPUT:
1335 RETVAL
1336
1297void 1337void
1338aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1339 PPCODE:
1340{
1341 dREQ;
1342
1343 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1344 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1345 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1346
1347 REQ_SEND;
1348}
1349
1350void
1351aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1352 PPCODE:
1353{
1354 dREQ;
1355
1356 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1357 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1358
1359 REQ_SEND;
1360}
1361
1362void
1363aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1364 PPCODE:
1365{
1366 dREQ;
1367
1368 req->int2 = mode;
1369 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1370
1371 REQ_SEND;
1372}
1373
1374void
1375aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1376 PPCODE:
1377{
1378 dREQ;
1379
1380 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1381 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1382 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1389 PPCODE:
1390{
1391 dREQ;
1392
1393 req->type = EIO_READDIR;
1394 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1395
1396 if (flags & EIO_READDIR_DENTS)
1397 req->int1 |= EIO_READDIR_CUSTOM2;
1398
1399 req_set_path1 (req, pathname);
1400
1401 REQ_SEND;
1402}
1403
1404void
1405aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1406 PPCODE:
1407{
1408 dREQ;
1409
1410 req->type = EIO_MKDIR;
1411 req->int2 = mode;
1412 req_set_path1 (req, pathname);
1413
1414 REQ_SEND;
1415}
1416
1417void
1298aio_unlink (pathname,callback=&PL_sv_undef) 1418aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299 SV * pathname
1300 SV * callback
1301 ALIAS: 1419 ALIAS:
1302 aio_unlink = REQ_UNLINK 1420 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1421 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1422 aio_readdir = EIO_READDIR
1305 PPCODE: 1423 PPCODE:
1306{ 1424{
1307 dREQ; 1425 dREQ;
1308 1426
1309 req->type = ix; 1427 req->type = ix;
1310 req->data = newSVsv (pathname); 1428 req_set_path1 (req, pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1429
1312
1313 REQ_SEND; 1430 REQ_SEND;
1314} 1431}
1315 1432
1316void 1433void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1434aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1435 ALIAS:
1322 aio_link = REQ_LINK 1436 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1437 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1438 aio_rename = EIO_RENAME
1325 PPCODE: 1439 PPCODE:
1326{ 1440{
1441 eio_wd wd2 = 0;
1327 dREQ; 1442 dREQ;
1328 1443
1329 req->type = ix; 1444 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1445 req_set_path1 (req, oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1446 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1332 req->data = newSVsv (newpath); 1447 req->int3 = (long)wd2;
1333 req->dataptr = SvPVbyte_nolen (req->data);
1334 1448
1335 REQ_SEND; 1449 REQ_SEND;
1336} 1450}
1337 1451
1338void 1452void
1339aio_busy (delay,callback=&PL_sv_undef) 1453aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1454 PPCODE:
1343{ 1455{
1344 dREQ; 1456 dREQ;
1345 1457
1346 req->type = REQ_BUSY; 1458 req->type = EIO_MKNOD;
1347 req->fd = delay < 0. ? 0 : delay; 1459 req->int2 = (mode_t)mode;
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1460 req->offs = dev;
1349 1461 req_set_path1 (req, pathname);
1462
1350 REQ_SEND; 1463 REQ_SEND;
1351} 1464}
1352 1465
1353void 1466void
1354aio_group (callback=&PL_sv_undef) 1467aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1355 SV * callback 1468 ALIAS:
1356 PROTOTYPE: ;$ 1469 aio_mtouch = EIO_MTOUCH
1470 aio_msync = EIO_MSYNC
1357 PPCODE: 1471 PPCODE:
1358{ 1472{
1473 STRLEN svlen;
1474 char *svptr = SvPVbyte (data, svlen);
1475 UV len = SvUV (length);
1476
1477 if (offset < 0)
1478 offset += svlen;
1479
1480 if (offset < 0 || offset > svlen)
1481 croak ("offset outside of scalar");
1482
1483 if (!SvOK (length) || len + offset > svlen)
1484 len = svlen - offset;
1485
1486 {
1487 dREQ;
1488
1489 req->type = ix;
1490 req->sv2 = SvREFCNT_inc (data);
1491 req->ptr2 = (char *)svptr + offset;
1492 req->size = len;
1493 req->int1 = flags;
1494
1495 REQ_SEND;
1496 }
1497}
1498
1499void
1500aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1501 PPCODE:
1502{
1503 STRLEN svlen;
1504 char *svptr = SvPVbyte (data, svlen);
1505 UV len = SvUV (length);
1506
1507 if (offset < 0)
1508 offset += svlen;
1509
1510 if (offset < 0 || offset > svlen)
1511 croak ("offset outside of scalar");
1512
1513 if (!SvOK (length) || len + offset > svlen)
1514 len = svlen - offset;
1515
1516 {
1517 dREQ;
1518
1519 req->type = EIO_MLOCK;
1520 req->sv2 = SvREFCNT_inc (data);
1521 req->ptr2 = (char *)svptr + offset;
1522 req->size = len;
1523
1524 REQ_SEND;
1525 }
1526}
1527
1528void
1529aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1530 PPCODE:
1531{
1532 dREQ;
1533
1534 req->type = EIO_MLOCKALL;
1535 req->int1 = flags;
1536
1537 REQ_SEND;
1538}
1539
1540void
1541aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 int fd = s_fileno_croak (fh, 0);
1359 dREQ; 1545 dREQ;
1360 1546
1361 req->type = REQ_GROUP; 1547 req->type = EIO_CUSTOM;
1362 req_send (req); 1548 req->sv1 = newSVsv (fh);
1549 req->int1 = fd;
1363 1550
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1551 req->feed = fiemap;
1365} 1552#if HAVE_FIEMAP
1553 /* keep our fingers crossed that the next two types are 64 bit */
1554 req->offs = start;
1555 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1556 req->int2 = flags;
1557 req->int3 = SvOK (count) ? SvIV (count) : -1;
1558#endif
1366 1559
1560 REQ_SEND;
1561}
1562
1367void 1563void
1368aio_nop (callback=&PL_sv_undef) 1564aio_busy (double delay, SV *callback=&PL_sv_undef)
1369 SV * callback
1370 PPCODE: 1565 PPCODE:
1371{ 1566{
1372 dREQ; 1567 dREQ;
1373 1568
1374 req->type = REQ_NOP; 1569 req->type = EIO_BUSY;
1570 req->nv1 = delay < 0. ? 0. : delay;
1375 1571
1376 REQ_SEND; 1572 REQ_SEND;
1377} 1573}
1378 1574
1379void 1575void
1380aioreq_pri (int pri = DEFAULT_PRI) 1576aio_group (SV *callback=&PL_sv_undef)
1381 CODE: 1577 PPCODE:
1578{
1579 dREQ;
1580
1581 req->type = EIO_GROUP;
1582
1583 req_submit (req);
1584 XPUSHs (req_sv (req, aio_grp_stash));
1585}
1586
1587void
1588aio_nop (SV *callback=&PL_sv_undef)
1589 ALIAS:
1590 aio_nop = EIO_NOP
1591 aio_sync = EIO_SYNC
1592 PPCODE:
1593{
1594 dREQ;
1595
1596 req->type = ix;
1597
1598 REQ_SEND;
1599}
1600
1601int
1602aioreq_pri (int pri = 0)
1603 CODE:
1604 RETVAL = next_pri;
1605 if (items > 0)
1606 {
1382 if (pri < PRI_MIN) pri = PRI_MIN; 1607 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1383 if (pri > PRI_MAX) pri = PRI_MAX; 1608 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1384 next_pri = pri + PRI_BIAS; 1609 next_pri = pri;
1610 }
1611 OUTPUT:
1612 RETVAL
1385 1613
1386void 1614void
1387aioreq_nice (int nice = 0) 1615aioreq_nice (int nice = 0)
1388 CODE: 1616 CODE:
1389 nice = next_pri - nice; 1617 nice = next_pri - nice;
1390 if (nice < PRI_MIN) nice = PRI_MIN; 1618 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX; 1619 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1392 next_pri = nice + PRI_BIAS; 1620 next_pri = nice;
1393 1621
1394void 1622void
1395flush () 1623flush ()
1396 PROTOTYPE:
1397 CODE: 1624 CODE:
1398 while (nreqs) 1625 while (eio_nreqs ())
1399 { 1626 {
1400 poll_wait (); 1627 poll_wait ();
1401 poll_cb (); 1628 poll_cb ();
1402 } 1629 }
1403 1630
1404void 1631int
1405poll() 1632poll ()
1406 PROTOTYPE:
1407 CODE: 1633 CODE:
1408 if (nreqs)
1409 {
1410 poll_wait (); 1634 poll_wait ();
1411 poll_cb (); 1635 RETVAL = poll_cb ();
1412 }
1413
1414int
1415poll_fileno()
1416 PROTOTYPE:
1417 CODE:
1418 RETVAL = respipe [0];
1419 OUTPUT: 1636 OUTPUT:
1420 RETVAL 1637 RETVAL
1421 1638
1422int 1639int
1640poll_fileno ()
1641 CODE:
1642 RETVAL = s_epipe_fd (&respipe);
1643 OUTPUT:
1644 RETVAL
1645
1646int
1423poll_cb(...) 1647poll_cb (...)
1424 PROTOTYPE: 1648 PROTOTYPE:
1425 CODE: 1649 CODE:
1426 RETVAL = poll_cb (); 1650 RETVAL = poll_cb ();
1427 OUTPUT: 1651 OUTPUT:
1428 RETVAL 1652 RETVAL
1429 1653
1430void 1654void
1431poll_wait() 1655poll_wait ()
1432 PROTOTYPE:
1433 CODE: 1656 CODE:
1434 if (nreqs)
1435 poll_wait (); 1657 poll_wait ();
1436 1658
1437int 1659int
1438nreqs() 1660nreqs ()
1439 PROTOTYPE:
1440 CODE: 1661 CODE:
1441 RETVAL = nreqs; 1662 RETVAL = eio_nreqs ();
1442 OUTPUT: 1663 OUTPUT:
1443 RETVAL 1664 RETVAL
1444 1665
1666int
1667nready ()
1668 CODE:
1669 RETVAL = eio_nready ();
1670 OUTPUT:
1671 RETVAL
1672
1673int
1674npending ()
1675 CODE:
1676 RETVAL = eio_npending ();
1677 OUTPUT:
1678 RETVAL
1679
1680int
1681nthreads ()
1682 CODE:
1683 RETVAL = eio_nthreads ();
1684 OUTPUT:
1685 RETVAL
1686
1687int
1688fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1689 CODE:
1690 RETVAL = posix_fadvise (fh, offset, length, advice);
1691 OUTPUT:
1692 RETVAL
1693
1694IV
1695sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1696 CODE:
1697 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1698 OUTPUT:
1699 RETVAL
1700
1701void
1702mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1703 PPCODE:
1704 sv_unmagic (scalar, MMAP_MAGIC);
1705{
1706 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1707 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1708 if (addr == (void *)-1)
1709 XSRETURN_NO;
1710
1711 sv_force_normal (scalar);
1712
1713 /* we store the length in mg_obj, as namlen is I32 :/ */
1714 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1715 ->mg_obj = (SV *)length;
1716
1717 SvUPGRADE (scalar, SVt_PV); /* nop... */
1718
1719 if (!(prot & PROT_WRITE))
1720 SvREADONLY_on (scalar);
1721
1722 if (SvLEN (scalar))
1723 Safefree (SvPVX (scalar));
1724
1725 SvPVX (scalar) = (char *)addr;
1726 SvCUR_set (scalar, length);
1727 SvLEN_set (scalar, 0);
1728 SvPOK_only (scalar);
1729
1730 XSRETURN_YES;
1731}
1732
1733void
1734munmap (SV *scalar)
1735 CODE:
1736 sv_unmagic (scalar, MMAP_MAGIC);
1737
1738int
1739madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1740 ALIAS:
1741 mprotect = 1
1742 CODE:
1743{
1744 STRLEN svlen;
1745 void *addr = SvPVbyte (scalar, svlen);
1746 size_t len = SvUV (length);
1747
1748 if (offset < 0)
1749 offset += svlen;
1750
1751 if (offset < 0 || offset > svlen)
1752 croak ("offset outside of scalar");
1753
1754 if (!SvOK (length) || len + offset > svlen)
1755 len = svlen - offset;
1756
1757 addr = (void *)(((intptr_t)addr) + offset);
1758 eio_page_align (&addr, &len);
1759
1760 switch (ix)
1761 {
1762 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1763 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1764 }
1765}
1766 OUTPUT:
1767 RETVAL
1768
1769int
1770munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1771 CODE:
1772{
1773 STRLEN svlen;
1774 void *addr = SvPVbyte (scalar, svlen);
1775 size_t len = SvUV (length);
1776
1777 if (offset < 0)
1778 offset += svlen;
1779
1780 if (offset < 0 || offset > svlen)
1781 croak ("offset outside of scalar");
1782
1783 if (!SvOK (length) || len + offset > svlen)
1784 len = svlen - offset;
1785
1786 addr = (void *)(((intptr_t)addr) + offset);
1787 eio_page_align (&addr, &len);
1788#if _POSIX_MEMLOCK_RANGE
1789 RETVAL = munlock (addr, len);
1790#else
1791 RETVAL = EIO_ENOSYS ();
1792#endif
1793}
1794 OUTPUT:
1795 RETVAL
1796
1797int
1798munlockall ()
1799 CODE:
1800#if _POSIX_MEMLOCK
1801 munlockall ();
1802#else
1803 RETVAL = EIO_ENOSYS ();
1804#endif
1805 OUTPUT:
1806 RETVAL
1807
1808int
1809splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1810 CODE:
1811{
1812#if HAVE_LINUX_SPLICE
1813 loff_t off_in_, off_out_;
1814 RETVAL = splice (
1815 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1816 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1817 length, flags
1818 );
1819#else
1820 RETVAL = EIO_ENOSYS ();
1821#endif
1822}
1823 OUTPUT:
1824 RETVAL
1825
1826int
1827tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1828 CODE:
1829#if HAVE_LINUX_SPLICE
1830 RETVAL = tee (rfh, wfh, length, flags);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834 OUTPUT:
1835 RETVAL
1836
1837void _on_next_submit (SV *cb)
1838 CODE:
1839 SvREFCNT_dec (on_next_submit);
1840 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1841
1445PROTOTYPES: DISABLE 1842PROTOTYPES: DISABLE
1843
1844MODULE = IO::AIO PACKAGE = IO::AIO::WD
1845
1846BOOT:
1847{
1848 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1849 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1850}
1851
1852void
1853DESTROY (SV *self)
1854 CODE:
1855{
1856 aio_wd wd = SvAIO_WD (self);
1857#if HAVE_AT
1858 {
1859 SV *callback = &PL_sv_undef;
1860 dREQ; /* clobbers next_pri :/ */
1861 next_pri = req->pri; /* restore next_pri */
1862 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1863 req->type = EIO_WD_CLOSE;
1864 req->wd = wd;
1865 REQ_SEND;
1866 }
1867#else
1868 eio_wd_close_sync (wd);
1869#endif
1870}
1446 1871
1447MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1872MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1448 1873
1449void 1874void
1450cancel (aio_req_ornot req) 1875cancel (aio_req_ornot req)
1451 CODE: 1876 CODE:
1452 req_cancel (req); 1877 eio_cancel (req);
1453 1878
1454void 1879void
1455cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1880cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1456 CODE: 1881 PPCODE:
1882{
1883 if (GIMME_V != G_VOID)
1884 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1885
1886 if (items > 1)
1887 {
1888 SV *cb_cv =get_cb (callback);
1889
1457 SvREFCNT_dec (req->callback); 1890 SvREFCNT_dec (req->callback);
1458 req->callback = newSVsv (callback); 1891 req->callback = SvREFCNT_inc (cb_cv);
1892 }
1893}
1459 1894
1460MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1895MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1461 1896
1462void 1897void
1463add (aio_req grp, ...) 1898add (aio_req grp, ...)
1464 PPCODE: 1899 PPCODE:
1465{ 1900{
1466 int i; 1901 int i;
1467 aio_req req;
1468 1902
1469 if (grp->fd == 2) 1903 if (grp->int1 == 2)
1470 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1904 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1471 1905
1472 for (i = 1; i < items; ++i ) 1906 for (i = 1; i < items; ++i )
1473 { 1907 {
1908 aio_req req;
1909
1474 if (GIMME_V != G_VOID) 1910 if (GIMME_V != G_VOID)
1475 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1911 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1476 1912
1477 req = SvAIO_REQ (ST (i)); 1913 req = SvAIO_REQ (ST (i));
1478 1914
1479 if (req) 1915 if (req)
1480 { 1916 eio_grp_add (grp, req);
1481 ++grp->length;
1482 req->grp = grp;
1483
1484 req->grp_prev = 0;
1485 req->grp_next = grp->grp_first;
1486
1487 if (grp->grp_first)
1488 grp->grp_first->grp_prev = req;
1489
1490 grp->grp_first = req;
1491 }
1492 } 1917 }
1493} 1918}
1494 1919
1495void 1920void
1496cancel_subs (aio_req_ornot req) 1921cancel_subs (aio_req_ornot req)
1500void 1925void
1501result (aio_req grp, ...) 1926result (aio_req grp, ...)
1502 CODE: 1927 CODE:
1503{ 1928{
1504 int i; 1929 int i;
1930 AV *av;
1931
1932 grp->errorno = errno;
1933
1505 AV *av = newAV (); 1934 av = newAV ();
1935 av_extend (av, items - 1);
1506 1936
1507 for (i = 1; i < items; ++i ) 1937 for (i = 1; i < items; ++i )
1508 av_push (av, newSVsv (ST (i))); 1938 av_push (av, newSVsv (ST (i)));
1509 1939
1510 SvREFCNT_dec (grp->data); 1940 SvREFCNT_dec (grp->sv1);
1511 grp->data = (SV *)av; 1941 grp->sv1 = (SV *)av;
1512} 1942}
1943
1944void
1945errno (aio_req grp, int errorno = errno)
1946 CODE:
1947 grp->errorno = errorno;
1513 1948
1514void 1949void
1515limit (aio_req grp, int limit) 1950limit (aio_req grp, int limit)
1516 CODE: 1951 CODE:
1517 grp->fd2 = limit; 1952 eio_grp_limit (grp, limit);
1518 aio_grp_feed (grp);
1519 1953
1520void 1954void
1521feed (aio_req grp, SV *callback=&PL_sv_undef) 1955feed (aio_req grp, SV *callback=&PL_sv_undef)
1522 CODE: 1956 CODE:
1523{ 1957{
1524 SvREFCNT_dec (grp->fh2); 1958 SvREFCNT_dec (grp->sv2);
1525 grp->fh2 = newSVsv (callback); 1959 grp->sv2 = newSVsv (callback);
1960 grp->feed = aio_grp_feed;
1526 1961
1527 if (grp->fd2 <= 0) 1962 if (grp->int2 <= 0)
1528 grp->fd2 = 2; 1963 grp->int2 = 2;
1529 1964
1530 aio_grp_feed (grp); 1965 eio_grp_limit (grp, grp->int2);
1531} 1966}
1532 1967

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