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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.80 by root, Fri Oct 27 19:17:23 2006 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79
80 #define EIO_STRUCT_STAT struct _stati64
81 #define EIO_STRUCT_STATI64
82
83#else
84
40# include <sys/socket.h> 85 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 86 #include <sys/select.h>
87 #include <unistd.h>
88 #include <utime.h>
89 #include <signal.h>
90
91 #define EIO_STRUCT_STAT Stat_t
92
93#endif
94
95/*****************************************************************************/
96
97#if __GNUC__ >= 3
98# define expect(expr,value) __builtin_expect ((expr),(value))
99#else
100# define expect(expr,value) (expr)
101#endif
102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
43# else 144# else
44# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 146# endif
46#endif 147#endif
47 148
48/* used for struct dirent, AIX doesn't provide it */ 149/* defines all sorts of constants to 0 unless they are already defined */
49#ifndef NAME_MAX 150#include "def0.h"
50# define NAME_MAX 4096
51#endif
52 151
53#ifndef PTHREAD_STACK_MIN 152#ifndef makedev
54/* care for broken platforms, e.g. windows */ 153# 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 154#endif
155#ifndef major
156# define major(dev) ((dev) >> 8)
76#endif 157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
77 161
78/* buffer size for various temporary buffers */ 162#if PAGESIZE <= 0
79#define AIO_BUFSIZE 65536 163# define PAGESIZE sysconf (_SC_PAGESIZE)
164#endif
80 165
81#define dBUF \ 166/*****************************************************************************/
82 char *aio_buf; \ 167
83 LOCK (wrklock); \ 168static void
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 169fiemap (eio_req *req)
85 UNLOCK (wrklock); \ 170{
86 if (!aio_buf) \ 171 req->result = -1;
172
173#if HAVE_FIEMAP
174 /* assume some c99 */
175 struct fiemap *fiemap = 0;
176 size_t end_offset;
177 int count = req->int3;
178
179 req->flags |= EIO_FLAG_PTR1_FREE;
180
181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
182 /* increase in 3.5kb steps */
183 if (count < 0)
184 count = 8;
185
186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
187 errno = ENOMEM;
188 if (!fiemap)
87 return -1; 189 return;
88 190
89enum { 191 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};
102 192
103#define AIO_REQ_KLASS "IO::AIO::REQ" 193 fiemap->fm_start = req->offs;
104#define AIO_GRP_KLASS "IO::AIO::GRP" 194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
105 197
106typedef struct aio_cb 198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
107{ 199 return;
108 struct aio_cb *volatile next;
109 200
110 SV *data, *callback; 201 if (req->int3 >= 0 /* not autosizing */
111 SV *fh, *fh2; 202 || !fiemap->fm_mapped_extents /* no more extents */
112 void *dataptr, *data2ptr; 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
113 Stat_t *statdata; 204 goto done;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 205
118 STRLEN dataoffset; 206 /* else we have to loop -
119 int type; 207 * it would be tempting (actually I tried that first) to just query the
120 int fd, fd2; 208 * number of extents needed, but linux often feels like not returning all
121 int errorno; 209 * extents, without telling us it left any out. this complicates
122 mode_t mode; /* open */ 210 * this quite a bit.
211 */
123 212
124 unsigned char flags; 213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
125 unsigned char pri;
126 214
127 SV *self; /* the perl counterpart of this request, if any */ 215 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;
150
151#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153#else
154# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155#endif
156
157#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159
160/* worker threads management */
161static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
162
163typedef struct worker {
164 /* locked by wrklock */
165 struct worker *prev, *next;
166
167 pthread_t tid;
168
169 /* locked by reslock, reqlock or wrklock */
170 aio_req req; /* currently processed request */
171 void *dbuf;
172 DIR *dirp;
173} worker;
174
175static worker wrk_first = { &wrk_first, &wrk_first, 0 };
176
177static void worker_clear (worker *wrk)
178{
179 if (wrk->dirp)
180 { 216 {
181 closedir (wrk->dirp); 217 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
182 wrk->dirp = 0; 218 char scratch[3072];
183 } 219 struct fiemap *incmap = (struct fiemap *)scratch;
184 220
185 if (wrk->dbuf) 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
186 { 222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
187 free (wrk->dbuf); 223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
188 wrk->dbuf = 0; 224 incmap->fm_flags = fiemap->fm_flags;
189 } 225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
190}
191 226
192static void worker_free (worker *wrk) 227 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
193{
194 wrk->next->prev = wrk->prev;
195 wrk->prev->next = wrk->next;
196
197 free (wrk);
198}
199
200static volatile unsigned int nreqs, nready, npending;
201static volatile unsigned int max_outstanding = 0xffffffff;
202static int respipe [2];
203
204static pthread_mutex_t reslock = AIO_MUTEX_INIT;
205static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
206static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
207
208#if WORDREAD_UNSAFE
209
210static unsigned int get_nready ()
211{
212 unsigned int retval;
213
214 LOCK (reqlock);
215 retval = nready;
216 UNLOCK (reqlock);
217
218 return retval;
219}
220
221static unsigned int get_npending ()
222{
223 unsigned int retval;
224
225 LOCK (reslock);
226 retval = npending;
227 UNLOCK (reslock);
228
229 return retval;
230}
231
232#else
233
234# define get_nready() nready
235# define get_npending() npending
236
237#endif
238
239/*
240 * a somewhat faster data structure might be nice, but
241 * with 8 priorities this actually needs <20 insns
242 * per shift, the most expensive operation.
243 */
244typedef struct {
245 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
246 int size;
247} reqq;
248
249static reqq req_queue;
250static reqq res_queue;
251
252int reqq_push (reqq *q, aio_req req)
253{
254 int pri = req->pri;
255 req->next = 0;
256
257 if (q->qe[pri])
258 {
259 q->qe[pri]->next = req;
260 q->qe[pri] = req;
261 }
262 else
263 q->qe[pri] = q->qs[pri] = req;
264
265 return q->size++;
266}
267
268aio_req reqq_shift (reqq *q)
269{
270 int pri;
271
272 if (!q->size)
273 return 0; 228 return;
274 229
275 --q->size; 230 if (!incmap->fm_mapped_extents)
231 goto done;
276 232
277 for (pri = NUM_PRI; pri--; ) 233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
278 { 234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
279 aio_req req = q->qs[pri]; 235 errno = ENOMEM;
280
281 if (req) 236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
282 { 242 {
283 if (!(q->qs[pri] = req->next)) 243 struct fiemap_extent *e = incmap->fm_extents + count;
284 q->qe[pri] = 0;
285 244
286 return req; 245 if (e->fe_logical + e->fe_length >= end_offset)
246 goto done;
247
248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
287 } 253 }
288 } 254 }
289 255
290 abort (); 256done:
291} 257 req->result = 0;
292 258
293static int poll_cb (int max); 259#else
294static void req_invoke (aio_req req); 260 errno = ENOSYS;
261#endif
262}
263
264/*****************************************************************************/
265
266enum {
267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268};
269
270typedef eio_req *aio_req;
271typedef eio_req *aio_req_ornot;
272typedef eio_wd aio_wd;
273
274static SV *on_next_submit;
275static int next_pri = EIO_PRI_DEFAULT;
276static int max_outstanding;
277
278static s_epipe respipe;
279
295static void req_free (aio_req req); 280static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 281static void req_cancel (aio_req req);
297 282
283static void
284want_poll (void)
285{
286 /* write a dummy byte to the pipe so fh becomes ready */
287 s_epipe_signal (&respipe);
288}
289
290static void
291done_poll (void)
292{
293 /* read any signals sent by the worker threads */
294 s_epipe_drain (&respipe);
295}
296
298/* must be called at most once */ 297/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 298static SV *
299req_sv (aio_req req, HV *stash)
300{ 300{
301 if (!req->self) 301 if (!req->self)
302 { 302 {
303 req->self = (SV *)newHV (); 303 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 305 }
306 306
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 308}
309 309
310static aio_req SvAIO_REQ (SV *sv) 310static SV *
311newSVaio_wd (aio_wd wd)
312{
313 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314}
315
316static aio_req
317SvAIO_REQ (SV *sv)
311{ 318{
312 MAGIC *mg; 319 MAGIC *mg;
313 320
314 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 321 if (!SvROK (sv)
322 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
323 || (SvSTASH (SvRV (sv)) != aio_grp_stash
324 && SvSTASH (SvRV (sv)) != aio_req_stash
325 && !sv_derived_from (sv, "IO::AIO::REQ")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 326 croak ("object of class IO::AIO::REQ expected");
316 327
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 329
319 return mg ? (aio_req)mg->mg_ptr : 0; 330 return mg ? (aio_req)mg->mg_ptr : 0;
320} 331}
321 332
333static aio_wd
334SvAIO_WD (SV *sv)
335{
336 if (!SvROK (sv)
337 || SvTYPE (SvRV (sv)) != SVt_PVMG
338 || SvSTASH (SvRV (sv)) != aio_wd_stash)
339 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340
341 return (aio_wd)(long)SvIVX (SvRV (sv));
342}
343
344static void
322static void aio_grp_feed (aio_req grp) 345aio_grp_feed (aio_req grp)
323{ 346{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 347 if (grp->sv2 && SvOK (grp->sv2))
325 { 348 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 349 dSP;
331 350
332 ENTER; 351 ENTER;
333 SAVETMPS; 352 SAVETMPS;
334 PUSHMARK (SP); 353 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 354 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 355 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 356 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 357 SPAGAIN;
339 FREETMPS; 358 FREETMPS;
340 LEAVE; 359 LEAVE;
341 }
342
343 /* stop if no progress has been made */
344 if (old_len == grp->length)
345 {
346 SvREFCNT_dec (grp->fh2);
347 grp->fh2 = 0;
348 break;
349 }
350 } 360 }
351} 361}
352 362
353static void aio_grp_dec (aio_req grp) 363static void
364req_submit (eio_req *req)
354{ 365{
355 --grp->length; 366 eio_submit (req);
356 367
357 /* call feeder, if applicable */ 368 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 369 {
363 req_invoke (grp); 370 dSP;
364 req_free (grp); 371 SV *cb = sv_2mortal (on_next_submit);
372
373 on_next_submit = 0;
374
375 PUSHMARK (SP);
376 PUTBACK;
377 call_sv (cb, G_DISCARD | G_EVAL);
365 } 378 }
366} 379}
367 380
381static int
368static void req_invoke (aio_req req) 382req_invoke (eio_req *req)
369{ 383{
370 dSP; 384 if (req->flags & FLAG_SV2_RO_OFF)
385 SvREADONLY_off (req->sv2);
371 386
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 387 if (!EIO_CANCELLED (req) && req->callback)
373 { 388 {
389 dSP;
390 static SV *sv_result_cache; /* caches the result integer SV */
391 SV *sv_result;
392
374 ENTER; 393 ENTER;
375 SAVETMPS; 394 SAVETMPS;
376 PUSHMARK (SP); 395 PUSHMARK (SP);
377 EXTEND (SP, 1); 396 EXTEND (SP, 1);
378 397
398 /* do not recreate the result IV from scratch each time */
399 if (expect_true (sv_result_cache))
400 {
401 sv_result = sv_result_cache; sv_result_cache = 0;
402 SvIV_set (sv_result, req->result);
403 SvIOK_only (sv_result);
404 }
405 else
406 {
407 sv_result = newSViv (req->result);
408 SvREADONLY_on (sv_result);
409 }
410
379 switch (req->type) 411 switch (req->type)
380 { 412 {
413 case EIO_WD_OPEN:
414 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
415 break;
416
381 case REQ_READDIR: 417 case EIO_READDIR:
382 { 418 {
383 SV *rv = &PL_sv_undef; 419 SV *rv = &PL_sv_undef;
384 420
385 if (req->result >= 0) 421 if (req->result >= 0)
386 { 422 {
387 int i; 423 int i;
388 char *buf = req->data2ptr; 424 char *names = (char *)req->ptr2;
425 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 426 AV *av = newAV ();
390 427
391 av_extend (av, req->result - 1); 428 av_extend (av, req->result - 1);
392 429
393 for (i = 0; i < req->result; ++i) 430 for (i = 0; i < req->result; ++i)
394 { 431 {
395 SV *sv = newSVpv (buf, 0); 432 if (req->int1 & EIO_READDIR_DENTS)
433 {
434 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 435
436 if (req->int1 & EIO_READDIR_CUSTOM2)
437 {
438 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
439 AV *avent = newAV ();
440
441 av_extend (avent, 2);
442
443 if (!sv_type [ent->type])
444 {
445 sv_type [ent->type] = newSViv (ent->type);
446 SvREADONLY_on (sv_type [ent->type]);
447 }
448
449 av_store (avent, 0, namesv);
450 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
451 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
452
453 av_store (av, i, newRV_noinc ((SV *)avent));
454 }
455 else
397 av_store (av, i, sv); 456 av_store (av, i, namesv);
457
458 ++ent;
459 }
460 else
461 {
462 SV *name = newSVpv (names, 0);
463 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 464 names += SvCUR (name) + 1;
465 }
399 } 466 }
400 467
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 468 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 469 }
403 470
404 PUSHs (rv); 471 PUSHs (rv);
472
473 if (req->int1 & EIO_READDIR_CUSTOM1)
474 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
405 } 475 }
406 break; 476 break;
407 477
408 case REQ_OPEN: 478 case EIO_OPEN:
409 { 479 {
410 /* convert fd to fh */ 480 /* convert fd to fh */
411 SV *fh; 481 SV *fh = &PL_sv_undef;
412 482
413 PUSHs (sv_2mortal (newSViv (req->result))); 483 if (req->result >= 0)
414 PUTBACK; 484 {
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 485 GV *gv = (GV *)sv_newmortal ();
416 SPAGAIN; 486 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
487 char sym [64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
491 gv_init (gv, aio_stash, sym, symlen, 0);
417 492
418 fh = SvREFCNT_inc (POPs); 493 symlen = snprintf (
494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 (int)req->result
499 );
419 500
501 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
502 fh = (SV *)gv;
503 }
504
420 PUSHMARK (SP); 505 PUSHs (fh);
421 XPUSHs (sv_2mortal (fh));
422 } 506 }
423 break; 507 break;
424 508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
425 case REQ_GROUP: 546 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
427 548
428 if (req->data) 549 if (req->sv1)
429 { 550 {
430 int i; 551 int i;
431 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
432 553
433 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
436 } 557 }
437 break; 558 break;
438 559
439 case REQ_NOP: 560 case EIO_NOP:
440 case REQ_BUSY: 561 case EIO_BUSY:
441 break; 562 break;
442 563
564 case EIO_READLINK:
565 case EIO_REALPATH:
566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
598 {
599#if HAVE_FIEMAP
600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
631 }
632 else
633 PUSHs (sv_result);
634 break;
635
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0)
638 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */
640
443 default: 641 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
445 break; 643 break;
446 } 644 }
447 645
448 errno = req->errorno; 646 errno = req->errorno;
449 647
450 PUTBACK; 648 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
453 656
454 FREETMPS; 657 FREETMPS;
455 LEAVE; 658 LEAVE;
659
660 PUTBACK;
456 } 661 }
457 662
458 if (req->grp) 663 return !!SvTRUE (ERRSV);
459 {
460 aio_req grp = req->grp;
461
462 /* unlink request */
463 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
464 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
465
466 if (grp->grp_first == req)
467 grp->grp_first = req->grp_next;
468
469 aio_grp_dec (grp);
470 }
471
472 if (SvTRUE (ERRSV))
473 {
474 req_free (req);
475 croak (0);
476 }
477} 664}
478 665
479static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
480{ 668{
481 if (req->self) 669 if (req->self)
482 { 670 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
485 } 673 }
486 674
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 680
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 681 free (req);
497} 682}
498 683
684static void
499static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
500{ 686{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
504 return; 688 return;
505 689
506 SvREFCNT_dec (grp->fh2); 690 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 691 grp->sv2 = 0;
508 692
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 694}
512 695
513static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
514{ 698{
515 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
516 700 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 701}
519 702
520static void *aio_proc(void *arg); 703static void
521 704poll_wait (void)
522static void start_thread (void)
523{ 705{
524 sigset_t fullsigset, oldsigset;
525 pthread_attr_t attr;
526
527 worker *wrk = calloc (1, sizeof (worker));
528
529 if (!wrk)
530 croak ("unable to allocate worker thread data");
531
532 pthread_attr_init (&attr);
533 pthread_attr_setstacksize (&attr, STACKSIZE);
534 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535#ifdef PTHREAD_SCOPE_PROCESS
536 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537#endif
538
539 sigfillset (&fullsigset);
540
541 LOCK (wrklock);
542 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543
544 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
545 {
546 wrk->prev = &wrk_first;
547 wrk->next = wrk_first.next;
548 wrk_first.next->prev = wrk;
549 wrk_first.next = wrk;
550 ++started;
551 }
552 else
553 free (wrk);
554
555 sigprocmask (SIG_SETMASK, &oldsigset, 0);
556 UNLOCK (wrklock);
557}
558
559static void maybe_start_thread ()
560{
561#if 0
562 static struct timeval last;
563 struct timeval diff, now;
564#endif
565
566 if (started >= wanted)
567 return;
568
569 if (nready <= nreqs - get_nready () - get_npending ())
570 return;
571
572#if 0
573 gettimeofday (&now, 0);
574
575 diff.tv_sec = now.tv_sec - last.tv_sec;
576 diff.tv_usec = now.tv_usec - last.tv_usec;
577
578 if (diff.tv_usec < 0)
579 {
580 --diff.tv_sec;
581 diff.tv_usec += 1000000;
582 }
583
584 if (!diff.tv_sec && diff.tv_usec < 10000)
585 return;
586
587 last = now;
588#endif
589
590 start_thread ();
591}
592
593static void req_send (aio_req req)
594{
595 ++nreqs;
596
597 LOCK (reqlock);
598 ++nready;
599 reqq_push (&req_queue, req);
600 pthread_cond_signal (&reqwait);
601 UNLOCK (reqlock);
602
603 maybe_start_thread ();
604}
605
606static void end_thread (void)
607{
608 aio_req req;
609
610 Newz (0, req, 1, aio_cb);
611
612 req->type = REQ_QUIT;
613 req->pri = PRI_MAX + PRI_BIAS;
614
615 req_send (req);
616
617 LOCK (wrklock);
618 --started;
619 UNLOCK (wrklock);
620}
621
622static void min_parallel (int nthreads)
623{
624 if (wanted < nthreads)
625 wanted = nthreads;
626}
627
628static void max_parallel (int nthreads)
629{
630 if (wanted > nthreads)
631 wanted = nthreads;
632
633 while (started > wanted)
634 end_thread ();
635}
636
637static void poll_wait ()
638{
639 fd_set rfd;
640
641 while (nreqs) 706 while (eio_nreqs ())
642 { 707 {
643 int size; 708 int size;
644 if (WORDREAD_UNSAFE) LOCK (reslock); 709
710 X_LOCK (reslock);
645 size = res_queue.size; 711 size = res_queue.size;
646 if (WORDREAD_UNSAFE) UNLOCK (reslock); 712 X_UNLOCK (reslock);
647 713
648 if (size) 714 if (size)
649 return; 715 return;
650 716
651 maybe_start_thread (); 717 etp_maybe_start_thread ();
652 718
653 FD_ZERO(&rfd); 719 s_epipe_wait (&respipe);
654 FD_SET(respipe [0], &rfd);
655
656 select (respipe [0] + 1, &rfd, 0, 0, 0);
657 } 720 }
658} 721}
659 722
660static int poll_cb (int max) 723static int
724poll_cb (void)
661{ 725{
662 dSP;
663 int count = 0;
664 int do_croak = 0;
665 aio_req req;
666
667 for (;;) 726 for (;;)
668 { 727 {
669 while (max <= 0 || count < max) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758# define PROT_NONE 0
759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
763#endif
764
765#define MMAP_MAGIC PERL_MAGIC_ext
766
767static int ecb_cold
768mmap_free (pTHX_ SV *sv, MAGIC *mg)
769{
770 int old_errno = errno;
771 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
772 errno = old_errno;
773
774 mg->mg_obj = 0; /* just in case */
775
776 SvREADONLY_off (sv);
777
778 if (SvPVX (sv) != mg->mg_ptr)
779 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
780
781 SvCUR_set (sv, 0);
782 SvPVX (sv) = 0;
783 SvOK_off (sv);
784
785 return 0;
786}
787
788static MGVTBL mmap_vtbl = {
789 0, 0, 0, 0, mmap_free
790};
791
792/*****************************************************************************/
793
794static SV *
795get_cb (SV *cb_sv)
796{
797 SvGETMAGIC (cb_sv);
798 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
799}
800
801static aio_req ecb_noinline
802dreq (SV *callback)
803{
804 SV *cb_cv;
805 aio_req req;
806 int req_pri = next_pri;
807 next_pri = EIO_PRI_DEFAULT;
808
809 cb_cv = get_cb (callback);
810
811 req = calloc (sizeof (*req), 1);
812 if (!req)
813 croak ("out of memory during eio_req allocation");
814
815 req->callback = SvREFCNT_inc (cb_cv);
816 req->pri = req_pri;
817
818 return req;
819}
820
821#define dREQ \
822 aio_req req = dreq (callback); \
823
824#define REQ_SEND \
825 PUTBACK; \
826 req_submit (req); \
827 SPAGAIN; \
828 \
829 if (GIMME_V != G_VOID) \
830 XPUSHs (req_sv (req, aio_req_stash));
831
832ecb_inline void
833req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
834{
835 if (expect_false (SvROK (path)))
836 {
837 SV *rv = SvRV (path);
838 SV *wdob;
839
840 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
670 { 841 {
671 maybe_start_thread (); 842 path = AvARRAY (rv)[1];
843 wdob = AvARRAY (rv)[0];
672 844
673 LOCK (reslock); 845 if (SvOK (wdob))
674 req = reqq_shift (&res_queue);
675
676 if (req)
677 { 846 {
678 --npending; 847 *wd = SvAIO_WD (wdob);
679 848 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
680 if (!res_queue.size)
681 {
682 /* read any signals sent by the worker threads */
683 char buf [32];
684 while (read (respipe [0], buf, 32) == 32)
685 ;
686 }
687 }
688
689 UNLOCK (reslock);
690
691 if (!req)
692 break;
693
694 --nreqs;
695
696 if (req->type == REQ_GROUP && req->length)
697 {
698 req->fd = 1; /* mark request as delayed */
699 continue;
700 } 849 }
701 else 850 else
702 { 851 *wd = EIO_INVALID_WD;
703 if (req->type == REQ_READ)
704 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707 SvREADONLY_off (req->data);
708
709 if (req->statdata)
710 {
711 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
712 PL_laststatval = req->result;
713 PL_statcache = *(req->statdata);
714 }
715
716 req_invoke (req);
717
718 count++;
719 }
720
721 req_free (req);
722 } 852 }
853 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
854 {
855 *wd = (aio_wd)(long)SvIVX (rv);
856 *wdsv = SvREFCNT_inc_NN (rv);
857 *ptr = ".";
858 return; /* path set to "." */
859 }
860 else
861 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
862 }
723 863
724 if (nreqs <= max_outstanding) 864 *pathsv = newSVsv (path);
865 *ptr = SvPVbyte_nolen (*pathsv);
866}
867
868static void ecb_noinline
869req_set_path1 (aio_req req, SV *path)
870{
871 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
872}
873
874static void ecb_noinline
875req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
876{
877 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
878
879 switch (SvTYPE (rv))
880 {
881 case SVt_PVIO:
882 case SVt_PVLV:
883 case SVt_PVGV:
884 req->type = type_fh;
885 req->sv1 = newSVsv (fh_or_path);
886 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725 break; 887 break;
726 888
727 poll_wait (); 889 default:
728 890 req->type = type_path;
729 max = 0; 891 req_set_path1 (req, fh_or_path);
892 break;
730 } 893 }
731
732 return count;
733} 894}
734 895
735static void create_pipe () 896XS(boot_IO__AIO) ecb_cold;
736{
737 if (pipe (respipe))
738 croak ("unable to initialize result pipe");
739 897
740 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741 croak ("cannot set result pipe to nonblocking mode");
742
743 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745}
746
747/*****************************************************************************/
748/* work around various missing functions */
749
750#if !HAVE_PREADWRITE
751# define pread aio_pread
752# define pwrite aio_pwrite
753
754/*
755 * make our pread/pwrite safe against themselves, but not against
756 * normal read/write by using a mutex. slows down execution a lot,
757 * but that's your problem, not mine.
758 */
759static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
760
761static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
762{
763 ssize_t res;
764 off_t ooffset;
765
766 LOCK (preadwritelock);
767 ooffset = lseek (fd, 0, SEEK_CUR);
768 lseek (fd, offset, SEEK_SET);
769 res = read (fd, buf, count);
770 lseek (fd, ooffset, SEEK_SET);
771 UNLOCK (preadwritelock);
772
773 return res;
774}
775
776static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
777{
778 ssize_t res;
779 off_t ooffset;
780
781 LOCK (preadwritelock);
782 ooffset = lseek (fd, 0, SEEK_CUR);
783 lseek (fd, offset, SEEK_SET);
784 res = write (fd, buf, count);
785 lseek (fd, offset, SEEK_SET);
786 UNLOCK (preadwritelock);
787
788 return res;
789}
790#endif
791
792#if !HAVE_FDATASYNC
793# define fdatasync fsync
794#endif
795
796#if !HAVE_READAHEAD
797# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798
799static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
800{
801 dBUF;
802
803 while (count > 0)
804 {
805 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
806
807 pread (fd, aio_buf, len, offset);
808 offset += len;
809 count -= len;
810 }
811
812 errno = 0;
813}
814
815#endif
816
817#if !HAVE_READDIR_R
818# define readdir_r aio_readdir_r
819
820static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
821
822static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
823{
824 struct dirent *e;
825 int errorno;
826
827 LOCK (readdirlock);
828
829 e = readdir (dirp);
830 errorno = errno;
831
832 if (e)
833 {
834 *res = ent;
835 strcpy (ent->d_name, e->d_name);
836 }
837 else
838 *res = 0;
839
840 UNLOCK (readdirlock);
841
842 errno = errorno;
843 return e ? 0 : -1;
844}
845#endif
846
847/* sendfile always needs emulation */
848static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
849{
850 ssize_t res;
851
852 if (!count)
853 return 0;
854
855#if HAVE_SENDFILE
856# if __linux
857 res = sendfile (ofd, ifd, &offset, count);
858
859# elif __freebsd
860 /*
861 * Of course, the freebsd sendfile is a dire hack with no thoughts
862 * wasted on making it similar to other I/O functions.
863 */
864 {
865 off_t sbytes;
866 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
867
868 if (res < 0 && sbytes)
869 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
870 res = sbytes;
871 }
872
873# elif __hpux
874 res = sendfile (ofd, ifd, offset, count, 0, 0);
875
876# elif __solaris
877 {
878 struct sendfilevec vec;
879 size_t sbytes;
880
881 vec.sfv_fd = ifd;
882 vec.sfv_flag = 0;
883 vec.sfv_off = offset;
884 vec.sfv_len = count;
885
886 res = sendfilev (ofd, &vec, 1, &sbytes);
887
888 if (res < 0 && sbytes)
889 res = sbytes;
890 }
891
892# endif
893#else
894 res = -1;
895 errno = ENOSYS;
896#endif
897
898 if (res < 0
899 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
900#if __solaris
901 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
902#endif
903 )
904 )
905 {
906 /* emulate sendfile. this is a major pain in the ass */
907 dBUF;
908
909 res = 0;
910
911 while (count)
912 {
913 ssize_t cnt;
914
915 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
916
917 if (cnt <= 0)
918 {
919 if (cnt && !res) res = -1;
920 break;
921 }
922
923 cnt = write (ofd, aio_buf, cnt);
924
925 if (cnt <= 0)
926 {
927 if (cnt && !res) res = -1;
928 break;
929 }
930
931 offset += cnt;
932 res += cnt;
933 count -= cnt;
934 }
935 }
936
937 return res;
938}
939
940/* read a full directory */
941static void scandir_ (aio_req req, worker *self)
942{
943 DIR *dirp;
944 union
945 {
946 struct dirent d;
947 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
948 } *u;
949 struct dirent *entp;
950 char *name, *names;
951 int memlen = 4096;
952 int memofs = 0;
953 int res = 0;
954 int errorno;
955
956 LOCK (wrklock);
957 self->dirp = dirp = opendir (req->dataptr);
958 self->dbuf = u = malloc (sizeof (*u));
959 req->data2ptr = names = malloc (memlen);
960 UNLOCK (wrklock);
961
962 if (dirp && u && names)
963 for (;;)
964 {
965 errno = 0;
966 readdir_r (dirp, &u->d, &entp);
967
968 if (!entp)
969 break;
970
971 name = entp->d_name;
972
973 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
974 {
975 int len = strlen (name) + 1;
976
977 res++;
978
979 while (memofs + len > memlen)
980 {
981 memlen *= 2;
982 LOCK (wrklock);
983 req->data2ptr = names = realloc (names, memlen);
984 UNLOCK (wrklock);
985
986 if (!names)
987 break;
988 }
989
990 memcpy (names + memofs, name, len);
991 memofs += len;
992 }
993 }
994
995 if (errno)
996 res = -1;
997
998 req->result = res;
999}
1000
1001/*****************************************************************************/
1002
1003static void *aio_proc (void *thr_arg)
1004{
1005 aio_req req;
1006 worker *self = (worker *)thr_arg;
1007
1008 for (;;)
1009 {
1010 LOCK (reqlock);
1011
1012 for (;;)
1013 {
1014 self->req = req = reqq_shift (&req_queue);
1015
1016 if (req)
1017 break;
1018
1019 pthread_cond_wait (&reqwait, &reqlock);
1020 }
1021
1022 --nready;
1023
1024 UNLOCK (reqlock);
1025
1026 errno = 0; /* strictly unnecessary */
1027
1028 if (!(req->flags & FLAG_CANCELLED))
1029 switch (req->type)
1030 {
1031 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1032 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1033
1034 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1035 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1036
1037 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1038 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1039 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1040
1041 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1042 case REQ_CLOSE: req->result = close (req->fd); break;
1043 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1044 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1045 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1046 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1047 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1048
1049 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1050 case REQ_FSYNC: req->result = fsync (req->fd); break;
1051 case REQ_READDIR: scandir_ (req, self); break;
1052
1053 case REQ_BUSY:
1054 {
1055 struct timeval tv;
1056
1057 tv.tv_sec = req->fd;
1058 tv.tv_usec = req->fd2;
1059
1060 req->result = select (0, 0, 0, 0, &tv);
1061 }
1062
1063 case REQ_GROUP:
1064 case REQ_NOP:
1065 break;
1066
1067 case REQ_QUIT:
1068 LOCK (wrklock);
1069 worker_free (self);
1070 --started;
1071 UNLOCK (wrklock);
1072 return 0;
1073
1074 default:
1075 req->result = ENOSYS;
1076 break;
1077 }
1078
1079 req->errorno = errno;
1080
1081 LOCK (reslock);
1082
1083 ++npending;
1084
1085 if (!reqq_push (&res_queue, req))
1086 /* write a dummy byte to the pipe so fh becomes ready */
1087 write (respipe [1], &respipe, 1);
1088
1089 self->req = 0;
1090 worker_clear (self);
1091
1092 UNLOCK (reslock);
1093 }
1094}
1095
1096/*****************************************************************************/
1097
1098static void atfork_prepare (void)
1099{
1100 LOCK (wrklock);
1101 LOCK (reqlock);
1102 LOCK (reslock);
1103#if !HAVE_PREADWRITE
1104 LOCK (preadwritelock);
1105#endif
1106#if !HAVE_READDIR_R
1107 LOCK (readdirlock);
1108#endif
1109}
1110
1111static void atfork_parent (void)
1112{
1113#if !HAVE_READDIR_R
1114 UNLOCK (readdirlock);
1115#endif
1116#if !HAVE_PREADWRITE
1117 UNLOCK (preadwritelock);
1118#endif
1119 UNLOCK (reslock);
1120 UNLOCK (reqlock);
1121 UNLOCK (wrklock);
1122}
1123
1124static void atfork_child (void)
1125{
1126 aio_req prv;
1127
1128 while (prv = reqq_shift (&req_queue))
1129 req_free (prv);
1130
1131 while (prv = reqq_shift (&res_queue))
1132 req_free (prv);
1133
1134 while (wrk_first.next != &wrk_first)
1135 {
1136 worker *wrk = wrk_first.next;
1137
1138 if (wrk->req)
1139 req_free (wrk->req);
1140
1141 worker_clear (wrk);
1142 worker_free (wrk);
1143 }
1144
1145 started = 0;
1146 nreqs = 0;
1147
1148 close (respipe [0]);
1149 close (respipe [1]);
1150 create_pipe ();
1151
1152 atfork_parent ();
1153}
1154
1155#define dREQ \
1156 aio_req req; \
1157 int req_pri = next_pri; \
1158 next_pri = DEFAULT_PRI + PRI_BIAS; \
1159 \
1160 if (SvOK (callback) && !SvROK (callback)) \
1161 croak ("callback must be undef or of reference type"); \
1162 \
1163 Newz (0, req, 1, aio_cb); \
1164 if (!req) \
1165 croak ("out of memory during aio_req allocation"); \
1166 \
1167 req->callback = newSVsv (callback); \
1168 req->pri = req_pri
1169
1170#define REQ_SEND \
1171 req_send (req); \
1172 \
1173 if (GIMME_V != G_VOID) \
1174 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1175
1176MODULE = IO::AIO PACKAGE = IO::AIO 898MODULE = IO::AIO PACKAGE = IO::AIO
1177 899
1178PROTOTYPES: ENABLE 900PROTOTYPES: ENABLE
1179 901
1180BOOT: 902BOOT:
1181{ 903{
904 static const struct {
905 const char *name;
906 IV iv;
907 } *civ, const_iv[] = {
908# define const_niv(name, value) { # name, (IV) value },
909# define const_iv(name) { # name, (IV) name },
910# define const_eio(name) { # name, (IV) EIO_ ## name },
911
912 /* you have to re-run ./gendef0 after adding/Removing any constants here */
913
914 const_iv (ENOSYS)
915 const_iv (EXDEV)
916 const_iv (EBADR)
917
918 const_iv (O_RDONLY)
919 const_iv (O_WRONLY)
920 const_iv (O_RDWR)
921 const_iv (O_CREAT)
922 const_iv (O_TRUNC)
923 const_iv (O_EXCL)
924 const_iv (O_APPEND)
925
926 const_iv (O_ASYNC)
927 const_iv (O_DIRECT)
928 const_iv (O_NOATIME)
929
930 const_iv (O_CLOEXEC)
931 const_iv (O_NOCTTY)
932 const_iv (O_NOFOLLOW)
933 const_iv (O_NONBLOCK)
934 const_iv (O_EXEC)
935 const_iv (O_SEARCH)
936 const_iv (O_DIRECTORY)
937 const_iv (O_DSYNC)
938 const_iv (O_RSYNC)
939 const_iv (O_SYNC)
940 const_iv (O_TTY_INIT)
941
942 const_iv (S_IFIFO)
943 const_iv (S_IFCHR)
944 const_iv (S_IFBLK)
945 const_iv (S_IFLNK)
946 const_iv (S_IFREG)
947 const_iv (S_IFDIR)
948 const_iv (S_IFWHT)
949 const_iv (S_IFSOCK)
950 const_iv (S_IFMT)
951
952 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964
965 const_iv (ST_RDONLY)
966 const_iv (ST_NOSUID)
967 const_iv (ST_NODEV)
968 const_iv (ST_NOEXEC)
969 const_iv (ST_SYNCHRONOUS)
970 const_iv (ST_MANDLOCK)
971 const_iv (ST_WRITE)
972 const_iv (ST_APPEND)
973 const_iv (ST_IMMUTABLE)
974 const_iv (ST_NOATIME)
975 const_iv (ST_NODIRATIME)
976 const_iv (ST_RELATIME)
977
978 const_iv (PROT_NONE)
979 const_iv (PROT_EXEC)
980 const_iv (PROT_READ)
981 const_iv (PROT_WRITE)
982
983 /*const_iv (MAP_FIXED)*/
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_ANONYMOUS)
987
988 /* linuxish */
989 const_iv (MAP_HUGETLB)
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994
995 const_iv (FIEMAP_FLAG_SYNC)
996 const_iv (FIEMAP_FLAG_XATTR)
997 const_iv (FIEMAP_FLAGS_COMPAT)
998 const_iv (FIEMAP_EXTENT_LAST)
999 const_iv (FIEMAP_EXTENT_UNKNOWN)
1000 const_iv (FIEMAP_EXTENT_DELALLOC)
1001 const_iv (FIEMAP_EXTENT_ENCODED)
1002 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1003 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1004 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1005 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1006 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1007 const_iv (FIEMAP_EXTENT_MERGED)
1008 const_iv (FIEMAP_EXTENT_SHARED)
1009
1010 const_iv (SPLICE_F_MOVE)
1011 const_iv (SPLICE_F_NONBLOCK)
1012 const_iv (SPLICE_F_MORE)
1013 const_iv (SPLICE_F_GIFT)
1014
1015 const_iv (SEEK_DATA)
1016 const_iv (SEEK_HOLE)
1017
1018 /* libeio constants */
1019 const_eio (SEEK_SET)
1020 const_eio (SEEK_CUR)
1021 const_eio (SEEK_END)
1022
1023 const_eio (MCL_FUTURE)
1024 const_eio (MCL_CURRENT)
1025
1026 const_eio (MS_ASYNC)
1027 const_eio (MS_INVALIDATE)
1028 const_eio (MS_SYNC)
1029
1030 const_eio (MT_MODIFY)
1031
1032 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1033 const_eio (SYNC_FILE_RANGE_WRITE)
1034 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1035
1036 const_eio (FALLOC_FL_KEEP_SIZE)
1037 const_eio (FALLOC_FL_PUNCH_HOLE)
1038 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039 const_eio (FALLOC_FL_ZERO_RANGE)
1040
1041 const_eio (READDIR_DENTS)
1042 const_eio (READDIR_DIRS_FIRST)
1043 const_eio (READDIR_STAT_ORDER)
1044 const_eio (READDIR_FOUND_UNKNOWN)
1045
1046 const_eio (DT_UNKNOWN)
1047 const_eio (DT_FIFO)
1048 const_eio (DT_CHR)
1049 const_eio (DT_DIR)
1050 const_eio (DT_BLK)
1051 const_eio (DT_REG)
1052 const_eio (DT_LNK)
1053 const_eio (DT_SOCK)
1054 const_eio (DT_WHT)
1055 };
1056
1182 HV *stash = gv_stashpv ("IO::AIO", 1); 1057 aio_stash = gv_stashpv ("IO::AIO" , 1);
1183 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1058 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1184 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1059 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1185 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1060 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1186 1061
1187 create_pipe (); 1062 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1188 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1063 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1189 1064
1190 start_thread (); 1065 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1191}
1192 1066
1067 reinit ();
1068}
1069
1193void 1070void
1194min_parallel (int nthreads) 1071reinit ()
1195 PROTOTYPE: $ 1072 PROTOTYPE:
1196 1073
1197void 1074void
1198max_parallel (int nthreads) 1075max_poll_reqs (unsigned int nreqs)
1199 PROTOTYPE: $
1200
1201int
1202max_outstanding (int maxreqs)
1203 PROTOTYPE: $ 1076 PROTOTYPE: $
1204 CODE: 1077 CODE:
1205 RETVAL = max_outstanding; 1078 eio_set_max_poll_reqs (nreqs);
1079
1080void
1081max_poll_time (double nseconds)
1082 PROTOTYPE: $
1083 CODE:
1084 eio_set_max_poll_time (nseconds);
1085
1086void
1087min_parallel (unsigned int nthreads)
1088 PROTOTYPE: $
1089 CODE:
1090 eio_set_min_parallel (nthreads);
1091
1092void
1093max_parallel (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_parallel (nthreads);
1097
1098void
1099max_idle (unsigned int nthreads)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_max_idle (nthreads);
1103
1104void
1105idle_timeout (unsigned int seconds)
1106 PROTOTYPE: $
1107 CODE:
1108 eio_set_idle_timeout (seconds);
1109
1110void
1111max_outstanding (unsigned int maxreqs)
1112 PROTOTYPE: $
1113 CODE:
1206 max_outstanding = maxreqs; 1114 max_outstanding = maxreqs;
1207 OUTPUT:
1208 RETVAL
1209 1115
1210void 1116void
1211aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1117aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1212 SV * pathname
1213 int flags
1214 int mode
1215 SV * callback
1216 PROTOTYPE: $$$;$
1217 PPCODE: 1118 PPCODE:
1218{ 1119{
1219 dREQ; 1120 dREQ;
1220 1121
1221 req->type = REQ_OPEN; 1122 req->type = EIO_WD_OPEN;
1222 req->data = newSVsv (pathname); 1123 req_set_path1 (req, pathname);
1223 req->dataptr = SvPVbyte_nolen (req->data);
1224 req->fd = flags;
1225 req->mode = mode;
1226 1124
1227 REQ_SEND; 1125 REQ_SEND;
1228} 1126}
1229 1127
1230void 1128void
1129aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1130 PPCODE:
1131{
1132 dREQ;
1133
1134 req->type = EIO_OPEN;
1135 req_set_path1 (req, pathname);
1136 req->int1 = flags;
1137 req->int2 = mode;
1138
1139 REQ_SEND;
1140}
1141
1142void
1231aio_close (fh,callback=&PL_sv_undef) 1143aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1232 SV * fh
1233 SV * callback
1234 PROTOTYPE: $;$
1235 ALIAS: 1144 ALIAS:
1236 aio_close = REQ_CLOSE
1237 aio_fsync = REQ_FSYNC 1145 aio_fsync = EIO_FSYNC
1238 aio_fdatasync = REQ_FDATASYNC 1146 aio_fdatasync = EIO_FDATASYNC
1147 aio_syncfs = EIO_SYNCFS
1239 PPCODE: 1148 PPCODE:
1240{ 1149{
1150 int fd = s_fileno_croak (fh, 0);
1241 dREQ; 1151 dREQ;
1242 1152
1243 req->type = ix; 1153 req->type = ix;
1244 req->fh = newSVsv (fh); 1154 req->sv1 = newSVsv (fh);
1245 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1155 req->int1 = fd;
1246 1156
1247 REQ_SEND (req); 1157 REQ_SEND;
1248} 1158}
1249 1159
1250void 1160void
1161aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1162 PPCODE:
1163{
1164 int fd = s_fileno_croak (fh, 0);
1165 dREQ;
1166
1167 req->type = EIO_SYNC_FILE_RANGE;
1168 req->sv1 = newSVsv (fh);
1169 req->int1 = fd;
1170 req->offs = offset;
1171 req->size = nbytes;
1172 req->int2 = flags;
1173
1174 REQ_SEND;
1175}
1176
1177void
1178aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1179 PPCODE:
1180{
1181 int fd = s_fileno_croak (fh, 0);
1182 dREQ;
1183
1184 req->type = EIO_FALLOCATE;
1185 req->sv1 = newSVsv (fh);
1186 req->int1 = fd;
1187 req->int2 = mode;
1188 req->offs = offset;
1189 req->size = len;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196 PPCODE:
1197{
1198 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199 int fd = s_fileno_croak (fh, 0);
1200 dREQ;
1201
1202 if (expect_false (close_fd < 0))
1203 {
1204 int pipefd [2];
1205
1206 if (
1207#ifdef _WIN32
1208 _pipe (pipefd, 1, _O_BINARY) < 0
1209#else
1210 pipe (pipefd) < 0
1211 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1212#endif
1213 || close (pipefd [1]) < 0
1214 )
1215 abort (); /*D*/
1216
1217 close_fd = pipefd [0];
1218 }
1219
1220 req->type = EIO_DUP2;
1221 req->int1 = close_fd;
1222 req->sv2 = newSVsv (fh);
1223 req->int2 = fd;
1224
1225 REQ_SEND;
1226}
1227
1228void
1229aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1230 PPCODE:
1231{
1232 int fd = s_fileno_croak (fh, 0);
1233 dREQ;
1234
1235 req->type = EIO_SEEK;
1236 req->sv1 = newSVsv (fh);
1237 req->int1 = fd;
1238 req->offs = SvVAL64 (offset);
1239 req->int2 = whence;
1240
1241 REQ_SEND;
1242}
1243
1244void
1251aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1245aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1252 SV * fh
1253 UV offset
1254 UV length
1255 SV * data
1256 UV dataoffset
1257 SV * callback
1258 ALIAS: 1246 ALIAS:
1259 aio_read = REQ_READ 1247 aio_read = EIO_READ
1260 aio_write = REQ_WRITE 1248 aio_write = EIO_WRITE
1261 PROTOTYPE: $$$$$;$
1262 PPCODE: 1249 PPCODE:
1263{ 1250{
1264 aio_req req;
1265 STRLEN svlen; 1251 STRLEN svlen;
1252 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1266 char *svptr = SvPVbyte (data, svlen); 1253 char *svptr = SvPVbyte (data, svlen);
1267 1254 UV len = SvUV (length);
1268 SvUPGRADE (data, SVt_PV);
1269 SvPOK_on (data);
1270 1255
1271 if (dataoffset < 0) 1256 if (dataoffset < 0)
1272 dataoffset += svlen; 1257 dataoffset += svlen;
1273 1258
1274 if (dataoffset < 0 || dataoffset > svlen) 1259 if (dataoffset < 0 || dataoffset > svlen)
1275 croak ("data offset outside of string"); 1260 croak ("dataoffset outside of data scalar");
1276 1261
1277 if (ix == REQ_WRITE) 1262 if (ix == EIO_WRITE)
1278 { 1263 {
1279 /* write: check length and adjust. */ 1264 /* write: check length and adjust. */
1280 if (length < 0 || length + dataoffset > svlen) 1265 if (!SvOK (length) || len + dataoffset > svlen)
1281 length = svlen - dataoffset; 1266 len = svlen - dataoffset;
1282 } 1267 }
1283 else 1268 else
1284 { 1269 {
1285 /* read: grow scalar as necessary */ 1270 /* read: check type and grow scalar as necessary */
1271 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1286 svptr = SvGROW (data, length + dataoffset); 1272 svptr = sv_grow (data, len + dataoffset + 1);
1273 else if (SvCUR (data) < len + dataoffset)
1274 croak ("length + dataoffset outside of scalar, and cannot grow");
1287 } 1275 }
1288
1289 if (length < 0)
1290 croak ("length must not be negative");
1291 1276
1292 { 1277 {
1293 dREQ; 1278 dREQ;
1294 1279
1295 req->type = ix; 1280 req->type = ix;
1296 req->fh = newSVsv (fh); 1281 req->sv1 = newSVsv (fh);
1297 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1282 req->int1 = fd;
1298 : IoOFP (sv_2io (fh))); 1283 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1299 req->offset = offset; 1284 req->size = len;
1300 req->length = length;
1301 req->data = SvREFCNT_inc (data); 1285 req->sv2 = SvREFCNT_inc (data);
1302 req->dataptr = (char *)svptr + dataoffset; 1286 req->ptr2 = (char *)svptr + dataoffset;
1287 req->stroffset = dataoffset;
1303 1288
1304 if (!SvREADONLY (data)) 1289 if (!SvREADONLY (data))
1305 { 1290 {
1306 SvREADONLY_on (data); 1291 SvREADONLY_on (data);
1307 req->data2ptr = (void *)data; 1292 req->flags |= FLAG_SV2_RO_OFF;
1308 } 1293 }
1309 1294
1310 REQ_SEND; 1295 REQ_SEND;
1311 } 1296 }
1312} 1297}
1313 1298
1314void 1299void
1315aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1300aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1316 SV * out_fh 1301 ALIAS:
1317 SV * in_fh 1302 aio_readlink = EIO_READLINK
1318 UV in_offset 1303 aio_realpath = EIO_REALPATH
1319 UV length
1320 SV * callback
1321 PROTOTYPE: $$$$;$
1322 PPCODE: 1304 PPCODE:
1323{ 1305{
1306 dREQ;
1307
1308 req->type = ix;
1309 req_set_path1 (req, pathname);
1310
1311 REQ_SEND;
1312}
1313
1314void
1315aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1316 PPCODE:
1317{
1318 int ifd = s_fileno_croak (in_fh , 0);
1319 int ofd = s_fileno_croak (out_fh, 1);
1324 dREQ; 1320 dREQ;
1325 1321
1326 req->type = REQ_SENDFILE; 1322 req->type = EIO_SENDFILE;
1327 req->fh = newSVsv (out_fh); 1323 req->sv1 = newSVsv (out_fh);
1328 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1324 req->int1 = ofd;
1329 req->fh2 = newSVsv (in_fh); 1325 req->sv2 = newSVsv (in_fh);
1330 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1326 req->int2 = ifd;
1331 req->offset = in_offset; 1327 req->offs = in_offset;
1332 req->length = length; 1328 req->size = length;
1333 1329
1334 REQ_SEND; 1330 REQ_SEND;
1335} 1331}
1336 1332
1337void 1333void
1338aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1334aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1339 SV * fh
1340 UV offset
1341 IV length
1342 SV * callback
1343 PROTOTYPE: $$$;$
1344 PPCODE: 1335 PPCODE:
1345{ 1336{
1337 int fd = s_fileno_croak (fh, 0);
1346 dREQ; 1338 dREQ;
1347 1339
1348 req->type = REQ_READAHEAD; 1340 req->type = EIO_READAHEAD;
1349 req->fh = newSVsv (fh); 1341 req->sv1 = newSVsv (fh);
1350 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1342 req->int1 = fd;
1351 req->offset = offset; 1343 req->offs = offset;
1352 req->length = length; 1344 req->size = length;
1353 1345
1354 REQ_SEND; 1346 REQ_SEND;
1355} 1347}
1356 1348
1357void 1349void
1358aio_stat (fh_or_path,callback=&PL_sv_undef) 1350aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1359 SV * fh_or_path
1360 SV * callback
1361 ALIAS: 1351 ALIAS:
1362 aio_stat = REQ_STAT 1352 aio_stat = EIO_STAT
1363 aio_lstat = REQ_LSTAT 1353 aio_lstat = EIO_LSTAT
1354 aio_statvfs = EIO_STATVFS
1364 PPCODE: 1355 PPCODE:
1365{ 1356{
1366 dREQ; 1357 dREQ;
1367 1358
1368 New (0, req->statdata, 1, Stat_t); 1359 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1369 if (!req->statdata)
1370 {
1371 req_free (req);
1372 croak ("out of memory during aio_req->statdata allocation");
1373 }
1374
1375 if (SvPOK (fh_or_path))
1376 {
1377 req->type = ix;
1378 req->data = newSVsv (fh_or_path);
1379 req->dataptr = SvPVbyte_nolen (req->data);
1380 }
1381 else
1382 {
1383 req->type = REQ_FSTAT;
1384 req->fh = newSVsv (fh_or_path);
1385 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1386 }
1387 1360
1388 REQ_SEND; 1361 REQ_SEND;
1389} 1362}
1390 1363
1364UV
1365major (UV dev)
1366 ALIAS:
1367 minor = 1
1368 CODE:
1369 RETVAL = ix ? major (dev) : minor (dev);
1370 OUTPUT:
1371 RETVAL
1372
1373UV
1374makedev (UV maj, UV min)
1375 CODE:
1376 RETVAL = makedev (maj, min);
1377 OUTPUT:
1378 RETVAL
1379
1391void 1380void
1381aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1387 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1388 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1389
1390 REQ_SEND;
1391}
1392
1393void
1394aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1401
1402 REQ_SEND;
1403}
1404
1405void
1406aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 dREQ;
1410
1411 req->int2 = mode;
1412 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1413
1414 REQ_SEND;
1415}
1416
1417void
1418aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1419 PPCODE:
1420{
1421 dREQ;
1422
1423 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1424 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1425 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1426
1427 REQ_SEND;
1428}
1429
1430void
1431aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 dREQ;
1435
1436 req->type = EIO_READDIR;
1437 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1438
1439 if (flags & EIO_READDIR_DENTS)
1440 req->int1 |= EIO_READDIR_CUSTOM2;
1441
1442 req_set_path1 (req, pathname);
1443
1444 REQ_SEND;
1445}
1446
1447void
1448aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->type = EIO_MKDIR;
1454 req->int2 = mode;
1455 req_set_path1 (req, pathname);
1456
1457 REQ_SEND;
1458}
1459
1460void
1392aio_unlink (pathname,callback=&PL_sv_undef) 1461aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1393 SV * pathname
1394 SV * callback
1395 ALIAS: 1462 ALIAS:
1396 aio_unlink = REQ_UNLINK 1463 aio_unlink = EIO_UNLINK
1397 aio_rmdir = REQ_RMDIR 1464 aio_rmdir = EIO_RMDIR
1398 aio_readdir = REQ_READDIR 1465 aio_readdir = EIO_READDIR
1399 PPCODE: 1466 PPCODE:
1400{ 1467{
1401 dREQ; 1468 dREQ;
1402 1469
1403 req->type = ix; 1470 req->type = ix;
1404 req->data = newSVsv (pathname); 1471 req_set_path1 (req, pathname);
1405 req->dataptr = SvPVbyte_nolen (req->data); 1472
1406
1407 REQ_SEND; 1473 REQ_SEND;
1408} 1474}
1409 1475
1410void 1476void
1411aio_link (oldpath,newpath,callback=&PL_sv_undef) 1477aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1412 SV * oldpath
1413 SV * newpath
1414 SV * callback
1415 ALIAS: 1478 ALIAS:
1416 aio_link = REQ_LINK 1479 aio_link = EIO_LINK
1417 aio_symlink = REQ_SYMLINK 1480 aio_symlink = EIO_SYMLINK
1418 aio_rename = REQ_RENAME 1481 aio_rename = EIO_RENAME
1419 PPCODE: 1482 PPCODE:
1420{ 1483{
1484 eio_wd wd2 = 0;
1421 dREQ; 1485 dREQ;
1422 1486
1423 req->type = ix; 1487 req->type = ix;
1424 req->fh = newSVsv (oldpath); 1488 req_set_path1 (req, oldpath);
1425 req->data2ptr = SvPVbyte_nolen (req->fh); 1489 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1426 req->data = newSVsv (newpath); 1490 req->int3 = (long)wd2;
1427 req->dataptr = SvPVbyte_nolen (req->data);
1428 1491
1429 REQ_SEND; 1492 REQ_SEND;
1430} 1493}
1431 1494
1432void 1495void
1433aio_busy (delay,callback=&PL_sv_undef) 1496aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1434 double delay
1435 SV * callback
1436 PPCODE: 1497 PPCODE:
1437{ 1498{
1438 dREQ; 1499 dREQ;
1439 1500
1440 req->type = REQ_BUSY; 1501 req->type = EIO_MKNOD;
1441 req->fd = delay < 0. ? 0 : delay; 1502 req->int2 = (mode_t)mode;
1442 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1503 req->offs = dev;
1443 1504 req_set_path1 (req, pathname);
1505
1444 REQ_SEND; 1506 REQ_SEND;
1445} 1507}
1446 1508
1447void 1509void
1448aio_group (callback=&PL_sv_undef) 1510aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1449 SV * callback 1511 ALIAS:
1450 PROTOTYPE: ;$ 1512 aio_mtouch = EIO_MTOUCH
1513 aio_msync = EIO_MSYNC
1451 PPCODE: 1514 PPCODE:
1452{ 1515{
1516 STRLEN svlen;
1517 char *svptr = SvPVbyte (data, svlen);
1518 UV len = SvUV (length);
1519
1520 if (offset < 0)
1521 offset += svlen;
1522
1523 if (offset < 0 || offset > svlen)
1524 croak ("offset outside of scalar");
1525
1526 if (!SvOK (length) || len + offset > svlen)
1527 len = svlen - offset;
1528
1529 {
1530 dREQ;
1531
1532 req->type = ix;
1533 req->sv2 = SvREFCNT_inc (data);
1534 req->ptr2 = (char *)svptr + offset;
1535 req->size = len;
1536 req->int1 = flags;
1537
1538 REQ_SEND;
1539 }
1540}
1541
1542void
1543aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1544 PPCODE:
1545{
1546 STRLEN svlen;
1547 char *svptr = SvPVbyte (data, svlen);
1548 UV len = SvUV (length);
1549
1550 if (offset < 0)
1551 offset += svlen;
1552
1553 if (offset < 0 || offset > svlen)
1554 croak ("offset outside of scalar");
1555
1556 if (!SvOK (length) || len + offset > svlen)
1557 len = svlen - offset;
1558
1559 {
1560 dREQ;
1561
1562 req->type = EIO_MLOCK;
1563 req->sv2 = SvREFCNT_inc (data);
1564 req->ptr2 = (char *)svptr + offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568 }
1569}
1570
1571void
1572aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 dREQ;
1576
1577 req->type = EIO_MLOCKALL;
1578 req->int1 = flags;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 int fd = s_fileno_croak (fh, 0);
1453 dREQ; 1588 dREQ;
1454 1589
1455 req->type = REQ_GROUP; 1590 req->type = EIO_CUSTOM;
1456 req_send (req); 1591 req->sv1 = newSVsv (fh);
1592 req->int1 = fd;
1457 1593
1458 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1594 req->feed = fiemap;
1459} 1595#if HAVE_FIEMAP
1596 /* keep our fingers crossed that the next two types are 64 bit */
1597 req->offs = start;
1598 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1599 req->int2 = flags;
1600 req->int3 = SvOK (count) ? SvIV (count) : -1;
1601#endif
1460 1602
1603 REQ_SEND;
1604}
1605
1461void 1606void
1462aio_nop (callback=&PL_sv_undef) 1607aio_busy (double delay, SV *callback = &PL_sv_undef)
1463 SV * callback
1464 PPCODE: 1608 PPCODE:
1465{ 1609{
1466 dREQ; 1610 dREQ;
1467 1611
1468 req->type = REQ_NOP; 1612 req->type = EIO_BUSY;
1613 req->nv1 = delay < 0. ? 0. : delay;
1469 1614
1470 REQ_SEND; 1615 REQ_SEND;
1471} 1616}
1472 1617
1618void
1619aio_group (SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 dREQ;
1623
1624 req->type = EIO_GROUP;
1625
1626 PUTBACK;
1627 req_submit (req);
1628 SPAGAIN;
1629
1630 XPUSHs (req_sv (req, aio_grp_stash));
1631}
1632
1633void
1634aio_nop (SV *callback = &PL_sv_undef)
1635 ALIAS:
1636 aio_nop = EIO_NOP
1637 aio_sync = EIO_SYNC
1638 PPCODE:
1639{
1640 dREQ;
1641
1642 req->type = ix;
1643
1644 REQ_SEND;
1645}
1646
1473int 1647int
1474aioreq_pri (int pri = 0) 1648aioreq_pri (int pri = NO_INIT)
1475 PROTOTYPE: ;$
1476 CODE: 1649 CODE:
1477 RETVAL = next_pri - PRI_BIAS; 1650 RETVAL = next_pri;
1478 if (items > 0) 1651 if (items > 0)
1479 { 1652 {
1480 if (pri < PRI_MIN) pri = PRI_MIN; 1653 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1481 if (pri > PRI_MAX) pri = PRI_MAX; 1654 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1482 next_pri = pri + PRI_BIAS; 1655 next_pri = pri;
1483 } 1656 }
1484 OUTPUT: 1657 OUTPUT:
1485 RETVAL 1658 RETVAL
1486 1659
1487void 1660void
1488aioreq_nice (int nice = 0) 1661aioreq_nice (int nice = 0)
1489 CODE: 1662 CODE:
1490 nice = next_pri - nice; 1663 nice = next_pri - nice;
1491 if (nice < PRI_MIN) nice = PRI_MIN; 1664 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1492 if (nice > PRI_MAX) nice = PRI_MAX; 1665 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1493 next_pri = nice + PRI_BIAS; 1666 next_pri = nice;
1494 1667
1495void 1668void
1496flush () 1669flush ()
1670 CODE:
1671 while (eio_nreqs ())
1672 {
1673 poll_wait ();
1674 poll_cb ();
1675 }
1676
1677int
1678poll ()
1679 CODE:
1680 poll_wait ();
1681 RETVAL = poll_cb ();
1682 OUTPUT:
1683 RETVAL
1684
1685int
1686poll_fileno ()
1687 CODE:
1688 RETVAL = s_epipe_fd (&respipe);
1689 OUTPUT:
1690 RETVAL
1691
1692int
1693poll_cb (...)
1497 PROTOTYPE: 1694 PROTOTYPE:
1498 CODE: 1695 CODE:
1499 while (nreqs)
1500 {
1501 poll_wait ();
1502 poll_cb (0); 1696 RETVAL = poll_cb ();
1503 }
1504
1505void
1506poll()
1507 PROTOTYPE:
1508 CODE:
1509 if (nreqs)
1510 {
1511 poll_wait ();
1512 poll_cb (0);
1513 }
1514
1515int
1516poll_fileno()
1517 PROTOTYPE:
1518 CODE:
1519 RETVAL = respipe [0];
1520 OUTPUT: 1697 OUTPUT:
1521 RETVAL 1698 RETVAL
1522 1699
1700void
1701poll_wait ()
1702 CODE:
1703 poll_wait ();
1704
1523int 1705int
1524poll_cb(...) 1706nreqs ()
1525 PROTOTYPE:
1526 CODE: 1707 CODE:
1527 RETVAL = poll_cb (0); 1708 RETVAL = eio_nreqs ();
1528 OUTPUT: 1709 OUTPUT:
1529 RETVAL 1710 RETVAL
1530 1711
1531int 1712int
1532poll_some(int max = 0) 1713nready ()
1533 PROTOTYPE: $
1534 CODE: 1714 CODE:
1535 RETVAL = poll_cb (max); 1715 RETVAL = eio_nready ();
1536 OUTPUT: 1716 OUTPUT:
1537 RETVAL 1717 RETVAL
1538 1718
1539void 1719int
1540poll_wait() 1720npending ()
1541 PROTOTYPE:
1542 CODE: 1721 CODE:
1543 if (nreqs) 1722 RETVAL = eio_npending ();
1544 poll_wait ();
1545
1546int
1547nreqs()
1548 PROTOTYPE:
1549 CODE:
1550 RETVAL = nreqs;
1551 OUTPUT: 1723 OUTPUT:
1552 RETVAL 1724 RETVAL
1553 1725
1554int 1726int
1555nready() 1727nthreads ()
1556 PROTOTYPE:
1557 CODE: 1728 CODE:
1558 RETVAL = get_nready (); 1729 RETVAL = eio_nthreads ();
1559 OUTPUT: 1730 OUTPUT:
1560 RETVAL 1731 RETVAL
1561 1732
1562int 1733int
1563npending() 1734fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1564 PROTOTYPE: 1735 CODE:
1736 RETVAL = posix_fadvise (fh, offset, length, advice);
1737 OUTPUT:
1738 RETVAL
1739
1740IV
1741sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1742 CODE:
1743 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1744 OUTPUT:
1745 RETVAL
1746
1747void
1748mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749 PPCODE:
1750 sv_unmagic (scalar, MMAP_MAGIC);
1751{
1752 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754 if (addr == (void *)-1)
1755 XSRETURN_NO;
1756
1757 sv_force_normal (scalar);
1758
1759 /* we store the length in mg_obj, as namlen is I32 :/ */
1760 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1761 ->mg_obj = (SV *)length;
1762
1763 SvUPGRADE (scalar, SVt_PV); /* nop... */
1764
1765 if (!(prot & PROT_WRITE))
1766 SvREADONLY_on (scalar);
1767
1768 if (SvLEN (scalar))
1769 Safefree (SvPVX (scalar));
1770
1771 SvPVX (scalar) = (char *)addr;
1772 SvCUR_set (scalar, length);
1773 SvLEN_set (scalar, 0);
1774 SvPOK_only (scalar);
1775
1776 XSRETURN_YES;
1777}
1778
1779void
1780munmap (SV *scalar)
1565 CODE: 1781 CODE:
1566 RETVAL = get_npending (); 1782 sv_unmagic (scalar, MMAP_MAGIC);
1783
1784int
1785madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786 ALIAS:
1787 mprotect = 1
1788 CODE:
1789{
1790 STRLEN svlen;
1791 void *addr = SvPVbyte (scalar, svlen);
1792 STRLEN len = SvUV (length);
1793
1794 if (offset < 0)
1795 offset += svlen;
1796
1797 if (offset < 0 || offset > svlen)
1798 croak ("offset outside of scalar");
1799
1800 if (!SvOK (length) || len + offset > svlen)
1801 len = svlen - offset;
1802
1803 addr = (void *)(((intptr_t)addr) + offset);
1804 eio_page_align (&addr, &len);
1805
1806 switch (ix)
1807 {
1808 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1809 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1810 }
1811}
1567 OUTPUT: 1812 OUTPUT:
1568 RETVAL 1813 RETVAL
1814
1815int
1816munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1817 CODE:
1818{
1819 STRLEN svlen;
1820 void *addr = SvPVbyte (scalar, svlen);
1821 size_t len = SvUV (length);
1822
1823 if (offset < 0)
1824 offset += svlen;
1825
1826 if (offset < 0 || offset > svlen)
1827 croak ("offset outside of scalar");
1828
1829 if (!SvOK (length) || len + offset > svlen)
1830 len = svlen - offset;
1831
1832 addr = (void *)(((intptr_t)addr) + offset);
1833 eio_page_align (&addr, &len);
1834#if _POSIX_MEMLOCK_RANGE
1835 RETVAL = munlock (addr, len);
1836#else
1837 RETVAL = EIO_ENOSYS ();
1838#endif
1839}
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844munlockall ()
1845 CODE:
1846#if _POSIX_MEMLOCK
1847 munlockall ();
1848#else
1849 RETVAL = EIO_ENOSYS ();
1850#endif
1851 OUTPUT:
1852 RETVAL
1853
1854int
1855splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856 CODE:
1857{
1858#if HAVE_LINUX_SPLICE
1859 loff_t off_in_, off_out_;
1860 RETVAL = splice (
1861 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1862 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1863 length, flags
1864 );
1865#else
1866 RETVAL = EIO_ENOSYS ();
1867#endif
1868}
1869 OUTPUT:
1870 RETVAL
1871
1872int
1873tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1874 CODE:
1875#if HAVE_LINUX_SPLICE
1876 RETVAL = tee (rfh, wfh, length, flags);
1877#else
1878 RETVAL = EIO_ENOSYS ();
1879#endif
1880 OUTPUT:
1881 RETVAL
1882
1883int
1884pipesize (aio_rfd rfh, int new_size = -1)
1885 PROTOTYPE: $;$
1886 CODE:
1887#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1888 if (new_size >= 0)
1889 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1890 else
1891 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1892#else
1893 errno = ENOSYS;
1894 RETVAL = -1;
1895#endif
1896 OUTPUT:
1897 RETVAL
1898
1899void _on_next_submit (SV *cb)
1900 CODE:
1901 SvREFCNT_dec (on_next_submit);
1902 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1569 1903
1570PROTOTYPES: DISABLE 1904PROTOTYPES: DISABLE
1905
1906MODULE = IO::AIO PACKAGE = IO::AIO::WD
1907
1908BOOT:
1909{
1910 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1911 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1912}
1913
1914void
1915DESTROY (SV *self)
1916 CODE:
1917{
1918 aio_wd wd = SvAIO_WD (self);
1919#if HAVE_AT
1920 {
1921 SV *callback = &PL_sv_undef;
1922 dREQ; /* clobbers next_pri :/ */
1923 next_pri = req->pri; /* restore next_pri */
1924 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1925 req->type = EIO_WD_CLOSE;
1926 req->wd = wd;
1927 REQ_SEND;
1928 }
1929#else
1930 eio_wd_close_sync (wd);
1931#endif
1932}
1571 1933
1572MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1934MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1573 1935
1574void 1936void
1575cancel (aio_req_ornot req) 1937cancel (aio_req_ornot req)
1576 CODE: 1938 CODE:
1577 req_cancel (req); 1939 eio_cancel (req);
1578 1940
1579void 1941void
1580cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1942cb (aio_req_ornot req, SV *callback = NO_INIT)
1581 CODE: 1943 PPCODE:
1944{
1945 if (GIMME_V != G_VOID)
1946 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1947
1948 if (items > 1)
1949 {
1950 SV *cb_cv = get_cb (callback);
1951
1582 SvREFCNT_dec (req->callback); 1952 SvREFCNT_dec (req->callback);
1583 req->callback = newSVsv (callback); 1953 req->callback = SvREFCNT_inc (cb_cv);
1954 }
1955}
1584 1956
1585MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1957MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1586 1958
1587void 1959void
1588add (aio_req grp, ...) 1960add (aio_req grp, ...)
1589 PPCODE: 1961 PPCODE:
1590{ 1962{
1591 int i; 1963 int i;
1592 aio_req req;
1593 1964
1594 if (grp->fd == 2) 1965 if (grp->int1 == 2)
1595 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1966 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1596 1967
1597 for (i = 1; i < items; ++i ) 1968 for (i = 1; i < items; ++i )
1598 { 1969 {
1970 aio_req req;
1971
1599 if (GIMME_V != G_VOID) 1972 if (GIMME_V != G_VOID)
1600 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1973 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1601 1974
1602 req = SvAIO_REQ (ST (i)); 1975 req = SvAIO_REQ (ST (i));
1603 1976
1604 if (req) 1977 if (req)
1605 { 1978 eio_grp_add (grp, req);
1606 ++grp->length;
1607 req->grp = grp;
1608
1609 req->grp_prev = 0;
1610 req->grp_next = grp->grp_first;
1611
1612 if (grp->grp_first)
1613 grp->grp_first->grp_prev = req;
1614
1615 grp->grp_first = req;
1616 }
1617 } 1979 }
1618} 1980}
1619 1981
1620void 1982void
1621cancel_subs (aio_req_ornot req) 1983cancel_subs (aio_req_ornot req)
… …
1630 AV *av; 1992 AV *av;
1631 1993
1632 grp->errorno = errno; 1994 grp->errorno = errno;
1633 1995
1634 av = newAV (); 1996 av = newAV ();
1997 av_extend (av, items - 1);
1635 1998
1636 for (i = 1; i < items; ++i ) 1999 for (i = 1; i < items; ++i )
1637 av_push (av, newSVsv (ST (i))); 2000 av_push (av, newSVsv (ST (i)));
1638 2001
1639 SvREFCNT_dec (grp->data); 2002 SvREFCNT_dec (grp->sv1);
1640 grp->data = (SV *)av; 2003 grp->sv1 = (SV *)av;
1641} 2004}
1642 2005
1643void 2006void
1644errno (aio_req grp, int errorno = errno) 2007errno (aio_req grp, int errorno = errno)
1645 CODE: 2008 CODE:
1646 grp->errorno = errorno; 2009 grp->errorno = errorno;
1647 2010
1648void 2011void
1649limit (aio_req grp, int limit) 2012limit (aio_req grp, int limit)
1650 CODE: 2013 CODE:
1651 grp->fd2 = limit; 2014 eio_grp_limit (grp, limit);
1652 aio_grp_feed (grp);
1653 2015
1654void 2016void
1655feed (aio_req grp, SV *callback=&PL_sv_undef) 2017feed (aio_req grp, SV *callback = &PL_sv_undef)
1656 CODE: 2018 CODE:
1657{ 2019{
1658 SvREFCNT_dec (grp->fh2); 2020 SvREFCNT_dec (grp->sv2);
1659 grp->fh2 = newSVsv (callback); 2021 grp->sv2 = newSVsv (callback);
2022 grp->feed = aio_grp_feed;
1660 2023
1661 if (grp->fd2 <= 0) 2024 if (grp->int2 <= 0)
1662 grp->fd2 = 2; 2025 grp->int2 = 2;
1663 2026
1664 aio_grp_feed (grp); 2027 eio_grp_limit (grp, grp->int2);
1665} 2028}
1666 2029

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