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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.79 by root, Thu Oct 26 16:28:33 2006 UTC vs.
Revision 1.222 by root, Fri Aug 24 15:33:40 2012 UTC

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

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