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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.84 by root, Sat Oct 28 01:24:19 2006 UTC vs.
Revision 1.228 by root, Fri Jan 24 23:46:16 2014 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/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 146#include "def0.h"
50 147
51/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
52#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDREAD_UNSAFE
74# if __i386 || __x86_64
75# define WORDREAD_UNSAFE 0
76# else
77# define WORDREAD_UNSAFE 1
78# endif 150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
79#endif 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
80 157
81/* buffer size for various temporary buffers */ 158#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
83 161
84#define dBUF \ 162/*****************************************************************************/
85 char *aio_buf; \ 163
86 LOCK (wrklock); \ 164static void
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 165fiemap (eio_req *req)
88 UNLOCK (wrklock); \ 166{
89 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)
90 return -1; 185 return;
91 186
92enum { 187 req->ptr1 = fiemap;
93 REQ_QUIT,
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104};
105 188
106#define AIO_REQ_KLASS "IO::AIO::REQ" 189 fiemap->fm_start = req->offs;
107#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;
108 193
109typedef struct aio_cb 194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
110{ 195 return;
111 struct aio_cb *volatile next;
112 196
113 SV *data, *callback; 197 if (req->int3 >= 0 /* not autosizing */
114 SV *fh, *fh2; 198 || !fiemap->fm_mapped_extents /* no more extents */
115 void *dataptr, *data2ptr; 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
116 Stat_t *statdata; 200 goto done;
117 off_t offset;
118 size_t length;
119 ssize_t result;
120 201
121 STRLEN dataoffset; 202 /* else we have to loop -
122 int type; 203 * it would be tempting (actually I tried that first) to just query the
123 int fd, fd2; 204 * number of extents needed, but linux often feels like not returning all
124 int errorno; 205 * extents, without telling us it left any out. this complicates
125 mode_t mode; /* open */ 206 * this quite a bit.
207 */
126 208
127 unsigned char flags; 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
128 unsigned char pri;
129 210
130 SV *self; /* the perl counterpart of this request, if any */ 211 for (;;)
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132} aio_cb;
133
134enum {
135 FLAG_CANCELLED = 0x01,
136};
137
138typedef aio_cb *aio_req;
139typedef aio_cb *aio_req_ornot;
140
141enum {
142 PRI_MIN = -4,
143 PRI_MAX = 4,
144
145 DEFAULT_PRI = 0,
146 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148};
149
150static int next_pri = DEFAULT_PRI + PRI_BIAS;
151
152static unsigned int started, idle, wanted;
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) < 0)
196{
197 wrk->next->prev = wrk->prev;
198 wrk->prev->next = wrk->next;
199
200 free (wrk);
201}
202
203static volatile unsigned int nreqs, nready, npending;
204static volatile unsigned int max_idle = 4;
205static volatile unsigned int max_outstanding = 0xffffffff;
206static int respipe [2];
207
208static pthread_mutex_t reslock = AIO_MUTEX_INIT;
209static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
210static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
211
212#if WORDREAD_UNSAFE
213
214static unsigned int get_nready ()
215{
216 unsigned int retval;
217
218 LOCK (reqlock);
219 retval = nready;
220 UNLOCK (reqlock);
221
222 return retval;
223}
224
225static unsigned int get_npending ()
226{
227 unsigned int retval;
228
229 LOCK (reslock);
230 retval = npending;
231 UNLOCK (reslock);
232
233 return retval;
234}
235
236#else
237
238# define get_nready() nready
239# define get_npending() npending
240
241#endif
242
243/*
244 * a somewhat faster data structure might be nice, but
245 * with 8 priorities this actually needs <20 insns
246 * per shift, the most expensive operation.
247 */
248typedef struct {
249 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
250 int size;
251} reqq;
252
253static reqq req_queue;
254static reqq res_queue;
255
256int reqq_push (reqq *q, aio_req req)
257{
258 int pri = req->pri;
259 req->next = 0;
260
261 if (q->qe[pri])
262 {
263 q->qe[pri]->next = req;
264 q->qe[pri] = req;
265 }
266 else
267 q->qe[pri] = q->qs[pri] = req;
268
269 return q->size++;
270}
271
272aio_req reqq_shift (reqq *q)
273{
274 int pri;
275
276 if (!q->size)
277 return 0; 224 return;
278 225
279 --q->size; 226 if (!incmap->fm_mapped_extents)
227 goto done;
280 228
281 for (pri = NUM_PRI; pri--; ) 229 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
282 { 230 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
283 aio_req req = q->qs[pri]; 231 errno = ENOMEM;
284
285 if (req) 232 if (!fiemap)
233 return;
234
235 req->ptr1 = fiemap;
236
237 for (count = 0; count < incmap->fm_mapped_extents; ++count)
286 { 238 {
287 if (!(q->qs[pri] = req->next)) 239 struct fiemap_extent *e = incmap->fm_extents + count;
288 q->qe[pri] = 0;
289 240
290 return req; 241 if (e->fe_logical + e->fe_length >= end_offset)
242 goto done;
243
244 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
245
246 if (e->fe_flags & FIEMAP_EXTENT_LAST)
247 goto done;
248
291 } 249 }
292 } 250 }
293 251
294 abort (); 252done:
295} 253 req->result = 0;
296 254
297static int poll_cb (int max); 255#else
298static void req_invoke (aio_req req); 256 errno = ENOSYS;
257#endif
258}
259
260/*****************************************************************************/
261
262enum {
263 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
264};
265
266typedef eio_req *aio_req;
267typedef eio_req *aio_req_ornot;
268typedef eio_wd aio_wd;
269
270static SV *on_next_submit;
271static int next_pri = EIO_PRI_DEFAULT;
272static int max_outstanding;
273
274static s_epipe respipe;
275
299static void req_free (aio_req req); 276static void req_destroy (aio_req req);
300static void req_cancel (aio_req req); 277static void req_cancel (aio_req req);
301 278
279static void
280want_poll (void)
281{
282 /* write a dummy byte to the pipe so fh becomes ready */
283 s_epipe_signal (&respipe);
284}
285
286static void
287done_poll (void)
288{
289 /* read any signals sent by the worker threads */
290 s_epipe_drain (&respipe);
291}
292
302/* must be called at most once */ 293/* must be called at most once */
303static SV *req_sv (aio_req req, const char *klass) 294static SV *
295req_sv (aio_req req, HV *stash)
304{ 296{
305 if (!req->self) 297 if (!req->self)
306 { 298 {
307 req->self = (SV *)newHV (); 299 req->self = (SV *)newHV ();
308 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 300 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
309 } 301 }
310 302
311 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 303 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
312} 304}
313 305
314static aio_req SvAIO_REQ (SV *sv) 306static SV *
307newSVaio_wd (aio_wd wd)
308{
309 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
310}
311
312static aio_req
313SvAIO_REQ (SV *sv)
315{ 314{
316 MAGIC *mg; 315 MAGIC *mg;
317 316
318 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 317 if (!SvROK (sv)
318 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
319 || (SvSTASH (SvRV (sv)) != aio_grp_stash
320 && SvSTASH (SvRV (sv)) != aio_req_stash
321 && !sv_derived_from (sv, "IO::AIO::REQ")))
319 croak ("object of class " AIO_REQ_KLASS " expected"); 322 croak ("object of class IO::AIO::REQ expected");
320 323
321 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 324 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
322 325
323 return mg ? (aio_req)mg->mg_ptr : 0; 326 return mg ? (aio_req)mg->mg_ptr : 0;
324} 327}
325 328
329static aio_wd
330SvAIO_WD (SV *sv)
331{
332 if (!SvROK (sv)
333 || SvTYPE (SvRV (sv)) != SVt_PVMG
334 || SvSTASH (SvRV (sv)) != aio_wd_stash)
335 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
336
337 return (aio_wd)(long)SvIVX (SvRV (sv));
338}
339
340static void
326static void aio_grp_feed (aio_req grp) 341aio_grp_feed (aio_req grp)
327{ 342{
328 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 343 if (grp->sv2 && SvOK (grp->sv2))
329 { 344 {
330 int old_len = grp->length;
331
332 if (grp->fh2 && SvOK (grp->fh2))
333 {
334 dSP; 345 dSP;
335 346
336 ENTER; 347 ENTER;
337 SAVETMPS; 348 SAVETMPS;
338 PUSHMARK (SP); 349 PUSHMARK (SP);
339 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 350 XPUSHs (req_sv (grp, aio_grp_stash));
340 PUTBACK; 351 PUTBACK;
341 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 352 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
342 SPAGAIN; 353 SPAGAIN;
343 FREETMPS; 354 FREETMPS;
344 LEAVE; 355 LEAVE;
345 }
346
347 /* stop if no progress has been made */
348 if (old_len == grp->length)
349 {
350 SvREFCNT_dec (grp->fh2);
351 grp->fh2 = 0;
352 break;
353 }
354 } 356 }
355} 357}
356 358
357static void aio_grp_dec (aio_req grp) 359static void
360req_submit (eio_req *req)
358{ 361{
359 --grp->length; 362 eio_submit (req);
360 363
361 /* call feeder, if applicable */ 364 if (expect_false (on_next_submit))
362 aio_grp_feed (grp);
363
364 /* finish, if done */
365 if (!grp->length && grp->fd)
366 { 365 {
367 req_invoke (grp); 366 dSP;
368 req_free (grp); 367 SV *cb = sv_2mortal (on_next_submit);
368
369 on_next_submit = 0;
370
371 PUSHMARK (SP);
372 PUTBACK;
373 call_sv (cb, G_DISCARD | G_EVAL);
369 } 374 }
370} 375}
371 376
377static int
372static void req_invoke (aio_req req) 378req_invoke (eio_req *req)
373{ 379{
374 dSP; 380 if (req->flags & FLAG_SV2_RO_OFF)
381 SvREADONLY_off (req->sv2);
375 382
376 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 383 if (!EIO_CANCELLED (req) && req->callback)
377 { 384 {
385 dSP;
386 static SV *sv_result_cache; /* caches the result integer SV */
387 SV *sv_result;
388
378 ENTER; 389 ENTER;
379 SAVETMPS; 390 SAVETMPS;
380 PUSHMARK (SP); 391 PUSHMARK (SP);
381 EXTEND (SP, 1); 392 EXTEND (SP, 1);
382 393
394 /* do not recreate the result IV from scratch each time */
395 if (expect_true (sv_result_cache))
396 {
397 sv_result = sv_result_cache; sv_result_cache = 0;
398 SvIV_set (sv_result, req->result);
399 SvIOK_only (sv_result);
400 }
401 else
402 {
403 sv_result = newSViv (req->result);
404 SvREADONLY_on (sv_result);
405 }
406
383 switch (req->type) 407 switch (req->type)
384 { 408 {
409 case EIO_WD_OPEN:
410 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
411 break;
412
385 case REQ_READDIR: 413 case EIO_READDIR:
386 { 414 {
387 SV *rv = &PL_sv_undef; 415 SV *rv = &PL_sv_undef;
388 416
389 if (req->result >= 0) 417 if (req->result >= 0)
390 { 418 {
391 int i; 419 int i;
392 char *buf = req->data2ptr; 420 char *names = (char *)req->ptr2;
421 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
393 AV *av = newAV (); 422 AV *av = newAV ();
394 423
395 av_extend (av, req->result - 1); 424 av_extend (av, req->result - 1);
396 425
397 for (i = 0; i < req->result; ++i) 426 for (i = 0; i < req->result; ++i)
398 { 427 {
399 SV *sv = newSVpv (buf, 0); 428 if (req->int1 & EIO_READDIR_DENTS)
429 {
430 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
400 431
432 if (req->int1 & EIO_READDIR_CUSTOM2)
433 {
434 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
435 AV *avent = newAV ();
436
437 av_extend (avent, 2);
438
439 if (!sv_type [ent->type])
440 {
441 sv_type [ent->type] = newSViv (ent->type);
442 SvREADONLY_on (sv_type [ent->type]);
443 }
444
445 av_store (avent, 0, namesv);
446 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
447 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
448
449 av_store (av, i, newRV_noinc ((SV *)avent));
450 }
451 else
401 av_store (av, i, sv); 452 av_store (av, i, namesv);
453
454 ++ent;
455 }
456 else
457 {
458 SV *name = newSVpv (names, 0);
459 av_store (av, i, name);
402 buf += SvCUR (sv) + 1; 460 names += SvCUR (name) + 1;
461 }
403 } 462 }
404 463
405 rv = sv_2mortal (newRV_noinc ((SV *)av)); 464 rv = sv_2mortal (newRV_noinc ((SV *)av));
406 } 465 }
407 466
408 PUSHs (rv); 467 PUSHs (rv);
468
469 if (req->int1 & EIO_READDIR_CUSTOM1)
470 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
409 } 471 }
410 break; 472 break;
411 473
412 case REQ_OPEN: 474 case EIO_OPEN:
413 { 475 {
414 /* convert fd to fh */ 476 /* convert fd to fh */
415 SV *fh; 477 SV *fh = &PL_sv_undef;
416 478
417 PUSHs (sv_2mortal (newSViv (req->result))); 479 if (req->result >= 0)
418 PUTBACK; 480 {
419 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 481 GV *gv = (GV *)sv_newmortal ();
420 SPAGAIN; 482 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
483 char sym [64];
484 int symlen;
485
486 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
487 gv_init (gv, aio_stash, sym, symlen, 0);
421 488
422 fh = SvREFCNT_inc (POPs); 489 symlen = snprintf (
490 sym,
491 sizeof (sym),
492 "%s&=%d",
493 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494 (int)req->result
495 );
423 496
497 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
498 fh = (SV *)gv;
499 }
500
424 PUSHMARK (SP); 501 PUSHs (fh);
425 XPUSHs (sv_2mortal (fh));
426 } 502 }
427 break; 503 break;
428 504
505 case EIO_STATVFS:
506 case EIO_FSTATVFS:
507 {
508 SV *rv = &PL_sv_undef;
509
510#ifndef _WIN32
511 if (req->result >= 0)
512 {
513 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
514 HV *hv = newHV ();
515 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
516 * chooses to make it a struct.
517 */
518 unsigned long fsid = 0;
519 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
520
521 rv = sv_2mortal (newRV_noinc ((SV *)hv));
522
523 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
524 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
525 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
526 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
527 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
528 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
529 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
530 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
531 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
532 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
533 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
534 }
535#endif
536
537 PUSHs (rv);
538 }
539
540 break;
541
429 case REQ_GROUP: 542 case EIO_GROUP:
430 req->fd = 2; /* mark group as finished */ 543 req->int1 = 2; /* mark group as finished */
431 544
432 if (req->data) 545 if (req->sv1)
433 { 546 {
434 int i; 547 int i;
435 AV *av = (AV *)req->data; 548 AV *av = (AV *)req->sv1;
436 549
437 EXTEND (SP, AvFILL (av) + 1); 550 EXTEND (SP, AvFILL (av) + 1);
438 for (i = 0; i <= AvFILL (av); ++i) 551 for (i = 0; i <= AvFILL (av); ++i)
439 PUSHs (*av_fetch (av, i, 0)); 552 PUSHs (*av_fetch (av, i, 0));
440 } 553 }
441 break; 554 break;
442 555
443 case REQ_NOP: 556 case EIO_NOP:
444 case REQ_BUSY: 557 case EIO_BUSY:
445 break; 558 break;
446 559
560 case EIO_READLINK:
561 case EIO_REALPATH:
562 if (req->result > 0)
563 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
564 break;
565
566 case EIO_STAT:
567 case EIO_LSTAT:
568 case EIO_FSTAT:
569 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
570
571 if (!(PL_laststatval = req->result))
572 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
573 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
574
575 PUSHs (sv_result);
576 break;
577
578 case EIO_SEEK:
579 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
580 break;
581
582 case EIO_READ:
583 {
584 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
585 *SvEND (req->sv2) = 0;
586 SvPOK_only (req->sv2);
587 SvSETMAGIC (req->sv2);
588 PUSHs (sv_result);
589 }
590 break;
591
592 case EIO_CUSTOM:
593 if (req->feed == fiemap)
594 {
595#if HAVE_FIEMAP
596 if (!req->result)
597 {
598 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
599
600 if (fiemap->fm_extent_count)
601 {
602 AV *av = newAV ();
603 int i;
604
605 while (fiemap->fm_mapped_extents)
606 {
607 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
608 AV *ext_av = newAV ();
609
610 av_store (ext_av, 3, newSVuv (extent->fe_flags));
611 av_store (ext_av, 2, newSVval64 (extent->fe_length));
612 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
613 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
614
615 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
616 }
617
618 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
619 }
620 else
621 {
622 SvIV_set (sv_result, fiemap->fm_mapped_extents);
623 PUSHs (sv_result);
624 }
625 }
626#endif
627 }
628 else
629 PUSHs (sv_result);
630 break;
631
632 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
633 if (req->result > 0)
634 SvIV_set (sv_result, 0);
635 /* FALLTHROUGH */
636
447 default: 637 default:
448 PUSHs (sv_2mortal (newSViv (req->result))); 638 PUSHs (sv_result);
449 break; 639 break;
450 } 640 }
451 641
452 errno = req->errorno; 642 errno = req->errorno;
453 643
454 PUTBACK; 644 PUTBACK;
455 call_sv (req->callback, G_VOID | G_EVAL); 645 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
456 SPAGAIN; 646 SPAGAIN;
647
648 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
649 SvREFCNT_dec (sv_result);
650 else
651 sv_result_cache = sv_result;
457 652
458 FREETMPS; 653 FREETMPS;
459 LEAVE; 654 LEAVE;
655
656 PUTBACK;
460 } 657 }
461 658
462 if (req->grp) 659 return !!SvTRUE (ERRSV);
463 {
464 aio_req grp = req->grp;
465
466 /* unlink request */
467 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
468 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
469
470 if (grp->grp_first == req)
471 grp->grp_first = req->grp_next;
472
473 aio_grp_dec (grp);
474 }
475
476 if (SvTRUE (ERRSV))
477 {
478 req_free (req);
479 croak (0);
480 }
481} 660}
482 661
483static void req_free (aio_req req) 662static void
663req_destroy (aio_req req)
484{ 664{
485 if (req->self) 665 if (req->self)
486 { 666 {
487 sv_unmagic (req->self, PERL_MAGIC_ext); 667 sv_unmagic (req->self, PERL_MAGIC_ext);
488 SvREFCNT_dec (req->self); 668 SvREFCNT_dec (req->self);
489 } 669 }
490 670
491 SvREFCNT_dec (req->data);
492 SvREFCNT_dec (req->fh); 671 SvREFCNT_dec (req->sv1);
493 SvREFCNT_dec (req->fh2); 672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
494 SvREFCNT_dec (req->callback); 675 SvREFCNT_dec (req->callback);
495 Safefree (req->statdata);
496 676
497 if (req->type == REQ_READDIR)
498 free (req->data2ptr);
499
500 Safefree (req); 677 free (req);
501} 678}
502 679
680static void
503static void req_cancel_subs (aio_req grp) 681req_cancel_subs (aio_req grp)
504{ 682{
505 aio_req sub;
506
507 if (grp->type != REQ_GROUP) 683 if (grp->type != EIO_GROUP)
508 return; 684 return;
509 685
510 SvREFCNT_dec (grp->fh2); 686 SvREFCNT_dec (grp->sv2);
511 grp->fh2 = 0; 687 grp->sv2 = 0;
512 688
513 for (sub = grp->grp_first; sub; sub = sub->grp_next) 689 eio_grp_cancel (grp);
514 req_cancel (sub);
515} 690}
516 691
517static void req_cancel (aio_req req) 692static void ecb_cold
693create_respipe (void)
518{ 694{
519 req->flags |= FLAG_CANCELLED; 695 if (s_epipe_renew (&respipe))
520 696 croak ("IO::AIO: unable to initialize result pipe");
521 req_cancel_subs (req);
522} 697}
523 698
524static void *aio_proc(void *arg); 699static void
525 700poll_wait (void)
526static void start_thread (void)
527{ 701{
528 sigset_t fullsigset, oldsigset;
529 pthread_attr_t attr;
530
531 worker *wrk = calloc (1, sizeof (worker));
532
533 if (!wrk)
534 croak ("unable to allocate worker thread data");
535
536 pthread_attr_init (&attr);
537 pthread_attr_setstacksize (&attr, STACKSIZE);
538 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
539#ifdef PTHREAD_SCOPE_PROCESS
540 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
541#endif
542
543 sigfillset (&fullsigset);
544
545 LOCK (wrklock);
546 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
547
548 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
549 {
550 wrk->prev = &wrk_first;
551 wrk->next = wrk_first.next;
552 wrk_first.next->prev = wrk;
553 wrk_first.next = wrk;
554 ++started;
555 }
556 else
557 free (wrk);
558
559 sigprocmask (SIG_SETMASK, &oldsigset, 0);
560 UNLOCK (wrklock);
561}
562
563static void maybe_start_thread ()
564{
565 if (started >= wanted)
566 return;
567
568 /* todo: maybe use idle here, but might be less exact */
569 if ((int)nready <= (int)started - (int)(nreqs - get_nready () - get_npending ()))
570 return;
571
572 start_thread ();
573}
574
575static void req_send (aio_req req)
576{
577 ++nreqs;
578
579 LOCK (reqlock);
580 ++nready;
581 reqq_push (&req_queue, req);
582 pthread_cond_signal (&reqwait);
583 UNLOCK (reqlock);
584
585 maybe_start_thread ();
586}
587
588static void end_thread (void)
589{
590 aio_req req;
591
592 Newz (0, req, 1, aio_cb);
593
594 req->type = REQ_QUIT;
595 req->pri = PRI_MAX + PRI_BIAS;
596
597 LOCK (reqlock);
598 reqq_push (&req_queue, req);
599 pthread_cond_signal (&reqwait);
600 UNLOCK (reqlock);
601
602 LOCK (wrklock);
603 --started;
604 UNLOCK (wrklock);
605}
606
607static void min_parallel (int nthreads)
608{
609 if (wanted < nthreads)
610 wanted = nthreads;
611}
612
613static void max_parallel (int nthreads)
614{
615 if (wanted > nthreads)
616 wanted = nthreads;
617
618 while (started > wanted)
619 end_thread ();
620}
621
622static void poll_wait ()
623{
624 fd_set rfd;
625
626 while (nreqs) 702 while (eio_nreqs ())
627 { 703 {
628 int size; 704 int size;
629 if (WORDREAD_UNSAFE) LOCK (reslock); 705
706 X_LOCK (reslock);
630 size = res_queue.size; 707 size = res_queue.size;
631 if (WORDREAD_UNSAFE) UNLOCK (reslock); 708 X_UNLOCK (reslock);
632 709
633 if (size) 710 if (size)
634 return; 711 return;
635 712
636 maybe_start_thread (); 713 etp_maybe_start_thread ();
637 714
638 FD_ZERO(&rfd); 715 s_epipe_wait (&respipe);
639 FD_SET(respipe [0], &rfd);
640
641 select (respipe [0] + 1, &rfd, 0, 0, 0);
642 } 716 }
643} 717}
644 718
645static int poll_cb (int max) 719static int
720poll_cb (void)
646{ 721{
647 dSP;
648 int count = 0;
649 int do_croak = 0;
650 aio_req req;
651
652 for (;;) 722 for (;;)
653 { 723 {
654 while (max <= 0 || count < max) 724 int res = eio_poll ();
725
726 if (res > 0)
727 croak (0);
728
729 if (!max_outstanding || max_outstanding > eio_nreqs ())
730 return res;
731
732 poll_wait ();
733 }
734}
735
736static void ecb_cold
737reinit (void)
738{
739 create_respipe ();
740
741 if (eio_init (want_poll, done_poll) < 0)
742 croak ("IO::AIO: unable to initialise eio library");
743}
744
745/*****************************************************************************/
746
747#if !_POSIX_MAPPED_FILES
748# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
749# define munmap(addr,length) EIO_ENOSYS ()
750#endif
751
752#if !_POSIX_MEMORY_PROTECTION
753# define mprotect(addr,len,prot) EIO_ENOSYS ()
754# define PROT_NONE 0
755# define PROT_WRITE 0
756# define MAP_PRIVATE 0
757# define MAP_SHARED 0
758# define MAP_FIXED 0
759#endif
760
761#define MMAP_MAGIC PERL_MAGIC_ext
762
763static int ecb_cold
764mmap_free (pTHX_ SV *sv, MAGIC *mg)
765{
766 int old_errno = errno;
767 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
768 errno = old_errno;
769
770 mg->mg_obj = 0; /* just in case */
771
772 SvREADONLY_off (sv);
773
774 if (SvPVX (sv) != mg->mg_ptr)
775 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
776
777 SvCUR_set (sv, 0);
778 SvPVX (sv) = 0;
779 SvOK_off (sv);
780
781 return 0;
782}
783
784static MGVTBL mmap_vtbl = {
785 0, 0, 0, 0, mmap_free
786};
787
788/*****************************************************************************/
789
790static SV *
791get_cb (SV *cb_sv)
792{
793 SvGETMAGIC (cb_sv);
794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
795}
796
797static aio_req ecb_noinline
798dreq (SV *callback)
799{
800 SV *cb_cv;
801 aio_req req;
802 int req_pri = next_pri;
803 next_pri = EIO_PRI_DEFAULT;
804
805 cb_cv = get_cb (callback);
806
807 req = calloc (sizeof (*req), 1);
808 if (!req)
809 croak ("out of memory during eio_req allocation");
810
811 req->callback = SvREFCNT_inc (cb_cv);
812 req->pri = req_pri;
813
814 return req;
815}
816
817#define dREQ \
818 aio_req req = dreq (callback); \
819
820#define REQ_SEND \
821 PUTBACK; \
822 req_submit (req); \
823 SPAGAIN; \
824 \
825 if (GIMME_V != G_VOID) \
826 XPUSHs (req_sv (req, aio_req_stash));
827
828ecb_inline void
829req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
830{
831 if (expect_false (SvROK (path)))
832 {
833 SV *rv = SvRV (path);
834 SV *wdob;
835
836 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
655 { 837 {
656 maybe_start_thread (); 838 path = AvARRAY (rv)[1];
839 wdob = AvARRAY (rv)[0];
657 840
658 LOCK (reslock); 841 if (SvOK (wdob))
659 req = reqq_shift (&res_queue);
660
661 if (req)
662 { 842 {
663 --npending; 843 *wd = SvAIO_WD (wdob);
664 844 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
665 if (!res_queue.size)
666 {
667 /* read any signals sent by the worker threads */
668 char buf [32];
669 while (read (respipe [0], buf, 32) == 32)
670 ;
671 }
672 }
673
674 UNLOCK (reslock);
675
676 if (!req)
677 break;
678
679 --nreqs;
680
681 if (req->type == REQ_GROUP && req->length)
682 {
683 req->fd = 1; /* mark request as delayed */
684 continue;
685 } 845 }
686 else 846 else
687 { 847 *wd = EIO_INVALID_WD;
688 if (req->type == REQ_READ)
689 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
690
691 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
692 SvREADONLY_off (req->data);
693
694 if (req->statdata)
695 {
696 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
697 PL_laststatval = req->result;
698 PL_statcache = *(req->statdata);
699 }
700
701 req_invoke (req);
702
703 count++;
704 }
705
706 req_free (req);
707 } 848 }
849 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
850 {
851 *wd = (aio_wd)(long)SvIVX (rv);
852 *wdsv = SvREFCNT_inc_NN (rv);
853 *ptr = ".";
854 return; /* path set to "." */
855 }
856 else
857 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
858 }
708 859
709 if (nreqs <= max_outstanding) 860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
710 break; 883 break;
711 884
712 poll_wait (); 885 default:
713 886 req->type = type_path;
714 max = 0; 887 req_set_path1 (req, fh_or_path);
888 break;
715 } 889 }
716
717 return count;
718} 890}
719 891
720static void create_pipe () 892XS(boot_IO__AIO) ecb_cold;
721{
722 if (pipe (respipe))
723 croak ("unable to initialize result pipe");
724 893
725 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
726 croak ("cannot set result pipe to nonblocking mode");
727
728 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
729 croak ("cannot set result pipe to nonblocking mode");
730}
731
732/*****************************************************************************/
733/* work around various missing functions */
734
735#if !HAVE_PREADWRITE
736# define pread aio_pread
737# define pwrite aio_pwrite
738
739/*
740 * make our pread/pwrite safe against themselves, but not against
741 * normal read/write by using a mutex. slows down execution a lot,
742 * but that's your problem, not mine.
743 */
744static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
745
746static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
747{
748 ssize_t res;
749 off_t ooffset;
750
751 LOCK (preadwritelock);
752 ooffset = lseek (fd, 0, SEEK_CUR);
753 lseek (fd, offset, SEEK_SET);
754 res = read (fd, buf, count);
755 lseek (fd, ooffset, SEEK_SET);
756 UNLOCK (preadwritelock);
757
758 return res;
759}
760
761static ssize_t pwrite (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 = write (fd, buf, count);
770 lseek (fd, offset, SEEK_SET);
771 UNLOCK (preadwritelock);
772
773 return res;
774}
775#endif
776
777#if !HAVE_FDATASYNC
778# define fdatasync fsync
779#endif
780
781#if !HAVE_READAHEAD
782# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
783
784static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
785{
786 dBUF;
787
788 while (count > 0)
789 {
790 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
791
792 pread (fd, aio_buf, len, offset);
793 offset += len;
794 count -= len;
795 }
796
797 errno = 0;
798}
799
800#endif
801
802#if !HAVE_READDIR_R
803# define readdir_r aio_readdir_r
804
805static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
806
807static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
808{
809 struct dirent *e;
810 int errorno;
811
812 LOCK (readdirlock);
813
814 e = readdir (dirp);
815 errorno = errno;
816
817 if (e)
818 {
819 *res = ent;
820 strcpy (ent->d_name, e->d_name);
821 }
822 else
823 *res = 0;
824
825 UNLOCK (readdirlock);
826
827 errno = errorno;
828 return e ? 0 : -1;
829}
830#endif
831
832/* sendfile always needs emulation */
833static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
834{
835 ssize_t res;
836
837 if (!count)
838 return 0;
839
840#if HAVE_SENDFILE
841# if __linux
842 res = sendfile (ofd, ifd, &offset, count);
843
844# elif __freebsd
845 /*
846 * Of course, the freebsd sendfile is a dire hack with no thoughts
847 * wasted on making it similar to other I/O functions.
848 */
849 {
850 off_t sbytes;
851 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
852
853 if (res < 0 && sbytes)
854 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
855 res = sbytes;
856 }
857
858# elif __hpux
859 res = sendfile (ofd, ifd, offset, count, 0, 0);
860
861# elif __solaris
862 {
863 struct sendfilevec vec;
864 size_t sbytes;
865
866 vec.sfv_fd = ifd;
867 vec.sfv_flag = 0;
868 vec.sfv_off = offset;
869 vec.sfv_len = count;
870
871 res = sendfilev (ofd, &vec, 1, &sbytes);
872
873 if (res < 0 && sbytes)
874 res = sbytes;
875 }
876
877# endif
878#else
879 res = -1;
880 errno = ENOSYS;
881#endif
882
883 if (res < 0
884 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
885#if __solaris
886 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
887#endif
888 )
889 )
890 {
891 /* emulate sendfile. this is a major pain in the ass */
892 dBUF;
893
894 res = 0;
895
896 while (count)
897 {
898 ssize_t cnt;
899
900 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
901
902 if (cnt <= 0)
903 {
904 if (cnt && !res) res = -1;
905 break;
906 }
907
908 cnt = write (ofd, aio_buf, cnt);
909
910 if (cnt <= 0)
911 {
912 if (cnt && !res) res = -1;
913 break;
914 }
915
916 offset += cnt;
917 res += cnt;
918 count -= cnt;
919 }
920 }
921
922 return res;
923}
924
925/* read a full directory */
926static void scandir_ (aio_req req, worker *self)
927{
928 DIR *dirp;
929 union
930 {
931 struct dirent d;
932 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
933 } *u;
934 struct dirent *entp;
935 char *name, *names;
936 int memlen = 4096;
937 int memofs = 0;
938 int res = 0;
939 int errorno;
940
941 LOCK (wrklock);
942 self->dirp = dirp = opendir (req->dataptr);
943 self->dbuf = u = malloc (sizeof (*u));
944 req->data2ptr = names = malloc (memlen);
945 UNLOCK (wrklock);
946
947 if (dirp && u && names)
948 for (;;)
949 {
950 errno = 0;
951 readdir_r (dirp, &u->d, &entp);
952
953 if (!entp)
954 break;
955
956 name = entp->d_name;
957
958 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
959 {
960 int len = strlen (name) + 1;
961
962 res++;
963
964 while (memofs + len > memlen)
965 {
966 memlen *= 2;
967 LOCK (wrklock);
968 req->data2ptr = names = realloc (names, memlen);
969 UNLOCK (wrklock);
970
971 if (!names)
972 break;
973 }
974
975 memcpy (names + memofs, name, len);
976 memofs += len;
977 }
978 }
979
980 if (errno)
981 res = -1;
982
983 req->result = res;
984}
985
986/*****************************************************************************/
987
988static void *aio_proc (void *thr_arg)
989{
990 aio_req req;
991 struct timespec ts;
992 worker *self = (worker *)thr_arg;
993
994 /* try to distribute timeouts somewhat evenly */
995 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
996 * (1000000000UL / 1024UL);
997
998 for (;;)
999 {
1000 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1001
1002 LOCK (reqlock);
1003
1004 for (;;)
1005 {
1006 self->req = req = reqq_shift (&req_queue);
1007
1008 if (req)
1009 break;
1010
1011 ++idle;
1012
1013 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1014 == ETIMEDOUT)
1015 {
1016 if (idle > max_idle)
1017 {
1018 --idle;
1019 UNLOCK (reqlock);
1020 LOCK (wrklock);
1021 --started;
1022 UNLOCK (wrklock);
1023 goto quit;
1024 }
1025
1026 /* we are allowed to idle, so do so without any timeout */
1027 pthread_cond_wait (&reqwait, &reqlock);
1028 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1029 }
1030
1031 --idle;
1032 }
1033
1034 --nready;
1035
1036 UNLOCK (reqlock);
1037
1038 errno = 0; /* strictly unnecessary */
1039
1040 if (!(req->flags & FLAG_CANCELLED))
1041 switch (req->type)
1042 {
1043 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1044 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1045
1046 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1047 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1048
1049 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1050 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1051 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1052
1053 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1054 case REQ_CLOSE: req->result = close (req->fd); break;
1055 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1056 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1057 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1058 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1059 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1060 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1061
1062 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1063 case REQ_FSYNC: req->result = fsync (req->fd); break;
1064 case REQ_READDIR: scandir_ (req, self); break;
1065
1066 case REQ_BUSY:
1067 {
1068 struct timeval tv;
1069
1070 tv.tv_sec = req->fd;
1071 tv.tv_usec = req->fd2;
1072
1073 req->result = select (0, 0, 0, 0, &tv);
1074 }
1075
1076 case REQ_GROUP:
1077 case REQ_NOP:
1078 break;
1079
1080 case REQ_QUIT:
1081 goto quit;
1082
1083 default:
1084 req->result = ENOSYS;
1085 break;
1086 }
1087
1088 req->errorno = errno;
1089
1090 LOCK (reslock);
1091
1092 ++npending;
1093
1094 if (!reqq_push (&res_queue, req))
1095 /* write a dummy byte to the pipe so fh becomes ready */
1096 write (respipe [1], &respipe, 1);
1097
1098 self->req = 0;
1099 worker_clear (self);
1100
1101 UNLOCK (reslock);
1102 }
1103
1104quit:
1105 LOCK (wrklock);
1106 worker_free (self);
1107 UNLOCK (wrklock);
1108
1109 return 0;
1110}
1111
1112/*****************************************************************************/
1113
1114static void atfork_prepare (void)
1115{
1116 LOCK (wrklock);
1117 LOCK (reqlock);
1118 LOCK (reslock);
1119#if !HAVE_PREADWRITE
1120 LOCK (preadwritelock);
1121#endif
1122#if !HAVE_READDIR_R
1123 LOCK (readdirlock);
1124#endif
1125}
1126
1127static void atfork_parent (void)
1128{
1129#if !HAVE_READDIR_R
1130 UNLOCK (readdirlock);
1131#endif
1132#if !HAVE_PREADWRITE
1133 UNLOCK (preadwritelock);
1134#endif
1135 UNLOCK (reslock);
1136 UNLOCK (reqlock);
1137 UNLOCK (wrklock);
1138}
1139
1140static void atfork_child (void)
1141{
1142 aio_req prv;
1143
1144 while (prv = reqq_shift (&req_queue))
1145 req_free (prv);
1146
1147 while (prv = reqq_shift (&res_queue))
1148 req_free (prv);
1149
1150 while (wrk_first.next != &wrk_first)
1151 {
1152 worker *wrk = wrk_first.next;
1153
1154 if (wrk->req)
1155 req_free (wrk->req);
1156
1157 worker_clear (wrk);
1158 worker_free (wrk);
1159 }
1160
1161 started = 0;
1162 idle = 0;
1163 nreqs = 0;
1164 nready = 0;
1165 npending = 0;
1166
1167 close (respipe [0]);
1168 close (respipe [1]);
1169 create_pipe ();
1170
1171 atfork_parent ();
1172}
1173
1174#define dREQ \
1175 aio_req req; \
1176 int req_pri = next_pri; \
1177 next_pri = DEFAULT_PRI + PRI_BIAS; \
1178 \
1179 if (SvOK (callback) && !SvROK (callback)) \
1180 croak ("callback must be undef or of reference type"); \
1181 \
1182 Newz (0, req, 1, aio_cb); \
1183 if (!req) \
1184 croak ("out of memory during aio_req allocation"); \
1185 \
1186 req->callback = newSVsv (callback); \
1187 req->pri = req_pri
1188
1189#define REQ_SEND \
1190 req_send (req); \
1191 \
1192 if (GIMME_V != G_VOID) \
1193 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1194
1195MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1196 895
1197PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1198 897
1199BOOT: 898BOOT:
1200{ 899{
900 static const struct {
901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907
908 /* you have to re-run ./gendef0 after adding/Removing any constants here */
909
910 const_iv (ENOSYS)
911 const_iv (EXDEV)
912 const_iv (EBADR)
913
914 const_iv (O_RDONLY)
915 const_iv (O_WRONLY)
916 const_iv (O_RDWR)
917 const_iv (O_CREAT)
918 const_iv (O_TRUNC)
919 const_iv (O_EXCL)
920 const_iv (O_APPEND)
921
922 const_iv (O_ASYNC)
923 const_iv (O_DIRECT)
924 const_iv (O_NOATIME)
925
926 const_iv (O_CLOEXEC)
927 const_iv (O_NOCTTY)
928 const_iv (O_NOFOLLOW)
929 const_iv (O_NONBLOCK)
930 const_iv (O_EXEC)
931 const_iv (O_SEARCH)
932 const_iv (O_DIRECTORY)
933 const_iv (O_DSYNC)
934 const_iv (O_RSYNC)
935 const_iv (O_SYNC)
936 const_iv (O_TTY_INIT)
937
938 const_iv (S_IFIFO)
939 const_iv (S_IFCHR)
940 const_iv (S_IFBLK)
941 const_iv (S_IFLNK)
942 const_iv (S_IFREG)
943 const_iv (S_IFDIR)
944 const_iv (S_IFWHT)
945 const_iv (S_IFSOCK)
946 const_iv (S_IFMT)
947
948 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
949 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
950 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
951 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
952 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
953 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
954
955 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
956 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
957 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
958 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
959 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
960
961 const_iv (ST_RDONLY)
962 const_iv (ST_NOSUID)
963 const_iv (ST_NODEV)
964 const_iv (ST_NOEXEC)
965 const_iv (ST_SYNCHRONOUS)
966 const_iv (ST_MANDLOCK)
967 const_iv (ST_WRITE)
968 const_iv (ST_APPEND)
969 const_iv (ST_IMMUTABLE)
970 const_iv (ST_NOATIME)
971 const_iv (ST_NODIRATIME)
972 const_iv (ST_RELATIME)
973
974 const_iv (PROT_NONE)
975 const_iv (PROT_EXEC)
976 const_iv (PROT_READ)
977 const_iv (PROT_WRITE)
978
979 /*const_iv (MAP_FIXED)*/
980 const_iv (MAP_PRIVATE)
981 const_iv (MAP_SHARED)
982 const_iv (MAP_ANONYMOUS)
983
984 /* linuxish */
985 const_iv (MAP_HUGETLB)
986 const_iv (MAP_LOCKED)
987 const_iv (MAP_NORESERVE)
988 const_iv (MAP_POPULATE)
989 const_iv (MAP_NONBLOCK)
990
991 const_iv (FIEMAP_FLAG_SYNC)
992 const_iv (FIEMAP_FLAG_XATTR)
993 const_iv (FIEMAP_FLAGS_COMPAT)
994 const_iv (FIEMAP_EXTENT_LAST)
995 const_iv (FIEMAP_EXTENT_UNKNOWN)
996 const_iv (FIEMAP_EXTENT_DELALLOC)
997 const_iv (FIEMAP_EXTENT_ENCODED)
998 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
999 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1000 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1001 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1002 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1003 const_iv (FIEMAP_EXTENT_MERGED)
1004 const_iv (FIEMAP_EXTENT_SHARED)
1005
1006 const_iv (SPLICE_F_MOVE)
1007 const_iv (SPLICE_F_NONBLOCK)
1008 const_iv (SPLICE_F_MORE)
1009 const_iv (SPLICE_F_GIFT)
1010
1011 const_iv (SEEK_DATA)
1012 const_iv (SEEK_HOLE)
1013
1014 /* libeio constants */
1015 const_eio (SEEK_SET)
1016 const_eio (SEEK_CUR)
1017 const_eio (SEEK_END)
1018
1019 const_eio (MCL_FUTURE)
1020 const_eio (MCL_CURRENT)
1021
1022 const_eio (MS_ASYNC)
1023 const_eio (MS_INVALIDATE)
1024 const_eio (MS_SYNC)
1025
1026 const_eio (MT_MODIFY)
1027
1028 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1029 const_eio (SYNC_FILE_RANGE_WRITE)
1030 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1031
1032 const_eio (FALLOC_FL_KEEP_SIZE)
1033 const_eio (FALLOC_FL_PUNCH_HOLE)
1034
1035 const_eio (READDIR_DENTS)
1036 const_eio (READDIR_DIRS_FIRST)
1037 const_eio (READDIR_STAT_ORDER)
1038 const_eio (READDIR_FOUND_UNKNOWN)
1039
1040 const_eio (DT_UNKNOWN)
1041 const_eio (DT_FIFO)
1042 const_eio (DT_CHR)
1043 const_eio (DT_DIR)
1044 const_eio (DT_BLK)
1045 const_eio (DT_REG)
1046 const_eio (DT_LNK)
1047 const_eio (DT_SOCK)
1048 const_eio (DT_WHT)
1049 };
1050
1201 HV *stash = gv_stashpv ("IO::AIO", 1); 1051 aio_stash = gv_stashpv ("IO::AIO" , 1);
1052 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1053 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1054 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1202 1055
1203 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1056 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1204 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1057 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1205 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1206 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1207 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1208 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1209 1058
1210 create_pipe (); 1059 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1211 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1212}
1213 1060
1061 reinit ();
1062}
1063
1214void 1064void
1215min_parallel (int nthreads) 1065reinit ()
1216 PROTOTYPE: $ 1066 PROTOTYPE:
1217 1067
1218void 1068void
1219max_parallel (int nthreads) 1069max_poll_reqs (unsigned int nreqs)
1220 PROTOTYPE: $
1221
1222int
1223max_outstanding (int maxreqs)
1224 PROTOTYPE: $ 1070 PROTOTYPE: $
1225 CODE: 1071 CODE:
1226 RETVAL = max_outstanding; 1072 eio_set_max_poll_reqs (nreqs);
1073
1074void
1075max_poll_time (double nseconds)
1076 PROTOTYPE: $
1077 CODE:
1078 eio_set_max_poll_time (nseconds);
1079
1080void
1081min_parallel (unsigned int nthreads)
1082 PROTOTYPE: $
1083 CODE:
1084 eio_set_min_parallel (nthreads);
1085
1086void
1087max_parallel (unsigned int nthreads)
1088 PROTOTYPE: $
1089 CODE:
1090 eio_set_max_parallel (nthreads);
1091
1092void
1093max_idle (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_idle (nthreads);
1097
1098void
1099idle_timeout (unsigned int seconds)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_idle_timeout (seconds);
1103
1104void
1105max_outstanding (unsigned int maxreqs)
1106 PROTOTYPE: $
1107 CODE:
1227 max_outstanding = maxreqs; 1108 max_outstanding = maxreqs;
1228 OUTPUT:
1229 RETVAL
1230 1109
1231void 1110void
1232aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1111aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1233 SV * pathname
1234 int flags
1235 int mode
1236 SV * callback
1237 PROTOTYPE: $$$;$
1238 PPCODE: 1112 PPCODE:
1239{ 1113{
1240 dREQ; 1114 dREQ;
1241 1115
1242 req->type = REQ_OPEN; 1116 req->type = EIO_WD_OPEN;
1243 req->data = newSVsv (pathname); 1117 req_set_path1 (req, pathname);
1244 req->dataptr = SvPVbyte_nolen (req->data);
1245 req->fd = flags;
1246 req->mode = mode;
1247 1118
1248 REQ_SEND; 1119 REQ_SEND;
1249} 1120}
1250 1121
1251void 1122void
1123aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1124 PPCODE:
1125{
1126 dREQ;
1127
1128 req->type = EIO_OPEN;
1129 req_set_path1 (req, pathname);
1130 req->int1 = flags;
1131 req->int2 = mode;
1132
1133 REQ_SEND;
1134}
1135
1136void
1252aio_close (fh,callback=&PL_sv_undef) 1137aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1253 SV * fh
1254 SV * callback
1255 PROTOTYPE: $;$
1256 ALIAS: 1138 ALIAS:
1257 aio_close = REQ_CLOSE
1258 aio_fsync = REQ_FSYNC 1139 aio_fsync = EIO_FSYNC
1259 aio_fdatasync = REQ_FDATASYNC 1140 aio_fdatasync = EIO_FDATASYNC
1141 aio_syncfs = EIO_SYNCFS
1260 PPCODE: 1142 PPCODE:
1261{ 1143{
1144 int fd = s_fileno_croak (fh, 0);
1262 dREQ; 1145 dREQ;
1263 1146
1264 req->type = ix; 1147 req->type = ix;
1265 req->fh = newSVsv (fh); 1148 req->sv1 = newSVsv (fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1149 req->int1 = fd;
1267 1150
1268 REQ_SEND (req); 1151 REQ_SEND;
1269} 1152}
1270 1153
1271void 1154void
1155aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 int fd = s_fileno_croak (fh, 0);
1159 dREQ;
1160
1161 req->type = EIO_SYNC_FILE_RANGE;
1162 req->sv1 = newSVsv (fh);
1163 req->int1 = fd;
1164 req->offs = offset;
1165 req->size = nbytes;
1166 req->int2 = flags;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1173 PPCODE:
1174{
1175 int fd = s_fileno_croak (fh, 0);
1176 dREQ;
1177
1178 req->type = EIO_FALLOCATE;
1179 req->sv1 = newSVsv (fh);
1180 req->int1 = fd;
1181 req->int2 = mode;
1182 req->offs = offset;
1183 req->size = len;
1184
1185 REQ_SEND;
1186}
1187
1188void
1189aio_close (SV *fh, SV *callback=&PL_sv_undef)
1190 PPCODE:
1191{
1192 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1193 int fd = s_fileno_croak (fh, 0);
1194 dREQ;
1195
1196 if (expect_false (close_fd < 0))
1197 {
1198 int pipefd [2];
1199
1200 if (
1201#ifdef _WIN32
1202 _pipe (pipefd, 1, _O_BINARY) < 0
1203#else
1204 pipe (pipefd) < 0
1205 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1206#endif
1207 || close (pipefd [1]) < 0
1208 )
1209 abort (); /*D*/
1210
1211 close_fd = pipefd [0];
1212 }
1213
1214 req->type = EIO_DUP2;
1215 req->int1 = close_fd;
1216 req->sv2 = newSVsv (fh);
1217 req->int2 = fd;
1218
1219 REQ_SEND;
1220}
1221
1222void
1223aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1224 PPCODE:
1225{
1226 int fd = s_fileno_croak (fh, 0);
1227 dREQ;
1228
1229 req->type = EIO_SEEK;
1230 req->sv1 = newSVsv (fh);
1231 req->int1 = fd;
1232 req->offs = SvVAL64 (offset);
1233 req->int2 = whence;
1234
1235 REQ_SEND;
1236}
1237
1238void
1272aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1239aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1273 SV * fh
1274 UV offset
1275 UV length
1276 SV * data
1277 UV dataoffset
1278 SV * callback
1279 ALIAS: 1240 ALIAS:
1280 aio_read = REQ_READ 1241 aio_read = EIO_READ
1281 aio_write = REQ_WRITE 1242 aio_write = EIO_WRITE
1282 PROTOTYPE: $$$$$;$
1283 PPCODE: 1243 PPCODE:
1284{ 1244{
1285 aio_req req;
1286 STRLEN svlen; 1245 STRLEN svlen;
1246 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1287 char *svptr = SvPVbyte (data, svlen); 1247 char *svptr = SvPVbyte (data, svlen);
1288 1248 UV len = SvUV (length);
1289 SvUPGRADE (data, SVt_PV);
1290 SvPOK_on (data);
1291 1249
1292 if (dataoffset < 0) 1250 if (dataoffset < 0)
1293 dataoffset += svlen; 1251 dataoffset += svlen;
1294 1252
1295 if (dataoffset < 0 || dataoffset > svlen) 1253 if (dataoffset < 0 || dataoffset > svlen)
1296 croak ("data offset outside of string"); 1254 croak ("dataoffset outside of data scalar");
1297 1255
1298 if (ix == REQ_WRITE) 1256 if (ix == EIO_WRITE)
1299 { 1257 {
1300 /* write: check length and adjust. */ 1258 /* write: check length and adjust. */
1301 if (length < 0 || length + dataoffset > svlen) 1259 if (!SvOK (length) || len + dataoffset > svlen)
1302 length = svlen - dataoffset; 1260 len = svlen - dataoffset;
1303 } 1261 }
1304 else 1262 else
1305 { 1263 {
1306 /* read: grow scalar as necessary */ 1264 /* read: check type and grow scalar as necessary */
1265 SvUPGRADE (data, SVt_PV);
1266 if (SvLEN (data) >= SvCUR (data))
1307 svptr = SvGROW (data, length + dataoffset); 1267 svptr = SvGROW (data, len + dataoffset + 1);
1268 else if (SvCUR (data) < len + dataoffset)
1269 croak ("length + dataoffset outside of scalar, and cannot grow");
1308 } 1270 }
1309
1310 if (length < 0)
1311 croak ("length must not be negative");
1312 1271
1313 { 1272 {
1314 dREQ; 1273 dREQ;
1315 1274
1316 req->type = ix; 1275 req->type = ix;
1317 req->fh = newSVsv (fh); 1276 req->sv1 = newSVsv (fh);
1318 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1277 req->int1 = fd;
1319 : IoOFP (sv_2io (fh))); 1278 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1320 req->offset = offset; 1279 req->size = len;
1321 req->length = length;
1322 req->data = SvREFCNT_inc (data); 1280 req->sv2 = SvREFCNT_inc (data);
1323 req->dataptr = (char *)svptr + dataoffset; 1281 req->ptr2 = (char *)svptr + dataoffset;
1282 req->stroffset = dataoffset;
1324 1283
1325 if (!SvREADONLY (data)) 1284 if (!SvREADONLY (data))
1326 { 1285 {
1327 SvREADONLY_on (data); 1286 SvREADONLY_on (data);
1328 req->data2ptr = (void *)data; 1287 req->flags |= FLAG_SV2_RO_OFF;
1329 } 1288 }
1330 1289
1331 REQ_SEND; 1290 REQ_SEND;
1332 } 1291 }
1333} 1292}
1334 1293
1335void 1294void
1336aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1295aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1337 SV * out_fh 1296 ALIAS:
1338 SV * in_fh 1297 aio_readlink = EIO_READLINK
1339 UV in_offset 1298 aio_realpath = EIO_REALPATH
1340 UV length
1341 SV * callback
1342 PROTOTYPE: $$$$;$
1343 PPCODE: 1299 PPCODE:
1344{ 1300{
1301 dREQ;
1302
1303 req->type = ix;
1304 req_set_path1 (req, pathname);
1305
1306 REQ_SEND;
1307}
1308
1309void
1310aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1311 PPCODE:
1312{
1313 int ifd = s_fileno_croak (in_fh , 0);
1314 int ofd = s_fileno_croak (out_fh, 1);
1345 dREQ; 1315 dREQ;
1346 1316
1347 req->type = REQ_SENDFILE; 1317 req->type = EIO_SENDFILE;
1348 req->fh = newSVsv (out_fh); 1318 req->sv1 = newSVsv (out_fh);
1349 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1319 req->int1 = ofd;
1350 req->fh2 = newSVsv (in_fh); 1320 req->sv2 = newSVsv (in_fh);
1351 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1321 req->int2 = ifd;
1352 req->offset = in_offset; 1322 req->offs = in_offset;
1353 req->length = length; 1323 req->size = length;
1354 1324
1355 REQ_SEND; 1325 REQ_SEND;
1356} 1326}
1357 1327
1358void 1328void
1359aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1329aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1360 SV * fh
1361 UV offset
1362 IV length
1363 SV * callback
1364 PROTOTYPE: $$$;$
1365 PPCODE: 1330 PPCODE:
1366{ 1331{
1332 int fd = s_fileno_croak (fh, 0);
1367 dREQ; 1333 dREQ;
1368 1334
1369 req->type = REQ_READAHEAD; 1335 req->type = EIO_READAHEAD;
1370 req->fh = newSVsv (fh); 1336 req->sv1 = newSVsv (fh);
1371 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1337 req->int1 = fd;
1372 req->offset = offset; 1338 req->offs = offset;
1373 req->length = length; 1339 req->size = length;
1374 1340
1375 REQ_SEND; 1341 REQ_SEND;
1376} 1342}
1377 1343
1378void 1344void
1379aio_stat (fh_or_path,callback=&PL_sv_undef) 1345aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1380 SV * fh_or_path
1381 SV * callback
1382 ALIAS: 1346 ALIAS:
1383 aio_stat = REQ_STAT 1347 aio_stat = EIO_STAT
1384 aio_lstat = REQ_LSTAT 1348 aio_lstat = EIO_LSTAT
1349 aio_statvfs = EIO_STATVFS
1385 PPCODE: 1350 PPCODE:
1386{ 1351{
1387 dREQ; 1352 dREQ;
1388 1353
1389 New (0, req->statdata, 1, Stat_t); 1354 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1390 if (!req->statdata)
1391 {
1392 req_free (req);
1393 croak ("out of memory during aio_req->statdata allocation");
1394 }
1395
1396 if (SvPOK (fh_or_path))
1397 {
1398 req->type = ix;
1399 req->data = newSVsv (fh_or_path);
1400 req->dataptr = SvPVbyte_nolen (req->data);
1401 }
1402 else
1403 {
1404 req->type = REQ_FSTAT;
1405 req->fh = newSVsv (fh_or_path);
1406 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1407 }
1408 1355
1409 REQ_SEND; 1356 REQ_SEND;
1410} 1357}
1411 1358
1359UV
1360major (UV dev)
1361 ALIAS:
1362 minor = 1
1363 CODE:
1364 RETVAL = ix ? major (dev) : minor (dev);
1365 OUTPUT:
1366 RETVAL
1367
1368UV
1369makedev (UV maj, UV min)
1370 CODE:
1371 RETVAL = makedev (maj, min);
1372 OUTPUT:
1373 RETVAL
1374
1412void 1375void
1376aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1377 PPCODE:
1378{
1379 dREQ;
1380
1381 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1382 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1383 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1384
1385 REQ_SEND;
1386}
1387
1388void
1389aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1390 PPCODE:
1391{
1392 dREQ;
1393
1394 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1395 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1402 PPCODE:
1403{
1404 dREQ;
1405
1406 req->int2 = mode;
1407 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1408
1409 REQ_SEND;
1410}
1411
1412void
1413aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1414 PPCODE:
1415{
1416 dREQ;
1417
1418 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1419 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1420 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1421
1422 REQ_SEND;
1423}
1424
1425void
1426aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1427 PPCODE:
1428{
1429 dREQ;
1430
1431 req->type = EIO_READDIR;
1432 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1433
1434 if (flags & EIO_READDIR_DENTS)
1435 req->int1 |= EIO_READDIR_CUSTOM2;
1436
1437 req_set_path1 (req, pathname);
1438
1439 REQ_SEND;
1440}
1441
1442void
1443aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1444 PPCODE:
1445{
1446 dREQ;
1447
1448 req->type = EIO_MKDIR;
1449 req->int2 = mode;
1450 req_set_path1 (req, pathname);
1451
1452 REQ_SEND;
1453}
1454
1455void
1413aio_unlink (pathname,callback=&PL_sv_undef) 1456aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1414 SV * pathname
1415 SV * callback
1416 ALIAS: 1457 ALIAS:
1417 aio_unlink = REQ_UNLINK 1458 aio_unlink = EIO_UNLINK
1418 aio_rmdir = REQ_RMDIR 1459 aio_rmdir = EIO_RMDIR
1419 aio_readdir = REQ_READDIR 1460 aio_readdir = EIO_READDIR
1420 PPCODE: 1461 PPCODE:
1421{ 1462{
1422 dREQ; 1463 dREQ;
1423 1464
1424 req->type = ix; 1465 req->type = ix;
1425 req->data = newSVsv (pathname); 1466 req_set_path1 (req, pathname);
1426 req->dataptr = SvPVbyte_nolen (req->data); 1467
1427
1428 REQ_SEND; 1468 REQ_SEND;
1429} 1469}
1430 1470
1431void 1471void
1432aio_link (oldpath,newpath,callback=&PL_sv_undef) 1472aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1433 SV * oldpath
1434 SV * newpath
1435 SV * callback
1436 ALIAS: 1473 ALIAS:
1437 aio_link = REQ_LINK 1474 aio_link = EIO_LINK
1438 aio_symlink = REQ_SYMLINK 1475 aio_symlink = EIO_SYMLINK
1439 aio_rename = REQ_RENAME 1476 aio_rename = EIO_RENAME
1440 PPCODE: 1477 PPCODE:
1441{ 1478{
1479 eio_wd wd2 = 0;
1442 dREQ; 1480 dREQ;
1443 1481
1444 req->type = ix; 1482 req->type = ix;
1445 req->fh = newSVsv (oldpath); 1483 req_set_path1 (req, oldpath);
1446 req->data2ptr = SvPVbyte_nolen (req->fh); 1484 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1447 req->data = newSVsv (newpath); 1485 req->int3 = (long)wd2;
1448 req->dataptr = SvPVbyte_nolen (req->data);
1449 1486
1450 REQ_SEND; 1487 REQ_SEND;
1451} 1488}
1452 1489
1453void 1490void
1454aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1491aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1455 SV * pathname
1456 SV * callback
1457 UV mode
1458 UV dev
1459 PPCODE: 1492 PPCODE:
1460{ 1493{
1461 dREQ; 1494 dREQ;
1462 1495
1463 req->type = REQ_MKNOD; 1496 req->type = EIO_MKNOD;
1464 req->data = newSVsv (pathname);
1465 req->dataptr = SvPVbyte_nolen (req->data);
1466 req->mode = (mode_t)mode; 1497 req->int2 = (mode_t)mode;
1467 req->offset = dev; 1498 req->offs = dev;
1499 req_set_path1 (req, pathname);
1468 1500
1469 REQ_SEND; 1501 REQ_SEND;
1470} 1502}
1471 1503
1472void 1504void
1505aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1506 ALIAS:
1507 aio_mtouch = EIO_MTOUCH
1508 aio_msync = EIO_MSYNC
1509 PPCODE:
1510{
1511 STRLEN svlen;
1512 char *svptr = SvPVbyte (data, svlen);
1513 UV len = SvUV (length);
1514
1515 if (offset < 0)
1516 offset += svlen;
1517
1518 if (offset < 0 || offset > svlen)
1519 croak ("offset outside of scalar");
1520
1521 if (!SvOK (length) || len + offset > svlen)
1522 len = svlen - offset;
1523
1524 {
1525 dREQ;
1526
1527 req->type = ix;
1528 req->sv2 = SvREFCNT_inc (data);
1529 req->ptr2 = (char *)svptr + offset;
1530 req->size = len;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534 }
1535}
1536
1537void
1538aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1539 PPCODE:
1540{
1541 STRLEN svlen;
1542 char *svptr = SvPVbyte (data, svlen);
1543 UV len = SvUV (length);
1544
1545 if (offset < 0)
1546 offset += svlen;
1547
1548 if (offset < 0 || offset > svlen)
1549 croak ("offset outside of scalar");
1550
1551 if (!SvOK (length) || len + offset > svlen)
1552 len = svlen - offset;
1553
1554 {
1555 dREQ;
1556
1557 req->type = EIO_MLOCK;
1558 req->sv2 = SvREFCNT_inc (data);
1559 req->ptr2 = (char *)svptr + offset;
1560 req->size = len;
1561
1562 REQ_SEND;
1563 }
1564}
1565
1566void
1567aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1568 PPCODE:
1569{
1570 dREQ;
1571
1572 req->type = EIO_MLOCKALL;
1573 req->int1 = flags;
1574
1575 REQ_SEND;
1576}
1577
1578void
1579aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1580 PPCODE:
1581{
1582 int fd = s_fileno_croak (fh, 0);
1583 dREQ;
1584
1585 req->type = EIO_CUSTOM;
1586 req->sv1 = newSVsv (fh);
1587 req->int1 = fd;
1588
1589 req->feed = fiemap;
1590#if HAVE_FIEMAP
1591 /* keep our fingers crossed that the next two types are 64 bit */
1592 req->offs = start;
1593 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1594 req->int2 = flags;
1595 req->int3 = SvOK (count) ? SvIV (count) : -1;
1596#endif
1597
1598 REQ_SEND;
1599}
1600
1601void
1473aio_busy (delay,callback=&PL_sv_undef) 1602aio_busy (double delay, SV *callback=&PL_sv_undef)
1474 double delay
1475 SV * callback
1476 PPCODE: 1603 PPCODE:
1477{ 1604{
1478 dREQ; 1605 dREQ;
1479 1606
1480 req->type = REQ_BUSY; 1607 req->type = EIO_BUSY;
1481 req->fd = delay < 0. ? 0 : delay; 1608 req->nv1 = delay < 0. ? 0. : delay;
1482 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1483 1609
1484 REQ_SEND; 1610 REQ_SEND;
1485} 1611}
1486 1612
1487void 1613void
1488aio_group (callback=&PL_sv_undef) 1614aio_group (SV *callback=&PL_sv_undef)
1489 SV * callback
1490 PROTOTYPE: ;$
1491 PPCODE: 1615 PPCODE:
1492{ 1616{
1493 dREQ; 1617 dREQ;
1494 1618
1495 req->type = REQ_GROUP; 1619 req->type = EIO_GROUP;
1620
1621 PUTBACK;
1496 req_send (req); 1622 req_submit (req);
1623 SPAGAIN;
1497 1624
1498 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1625 XPUSHs (req_sv (req, aio_grp_stash));
1499} 1626}
1500 1627
1501void 1628void
1502aio_nop (callback=&PL_sv_undef) 1629aio_nop (SV *callback=&PL_sv_undef)
1503 SV * callback 1630 ALIAS:
1631 aio_nop = EIO_NOP
1632 aio_sync = EIO_SYNC
1504 PPCODE: 1633 PPCODE:
1505{ 1634{
1506 dREQ; 1635 dREQ;
1507 1636
1508 req->type = REQ_NOP; 1637 req->type = ix;
1509 1638
1510 REQ_SEND; 1639 REQ_SEND;
1511} 1640}
1512 1641
1513int 1642int
1514aioreq_pri (int pri = 0) 1643aioreq_pri (int pri = 0)
1515 PROTOTYPE: ;$
1516 CODE: 1644 CODE:
1517 RETVAL = next_pri - PRI_BIAS; 1645 RETVAL = next_pri;
1518 if (items > 0) 1646 if (items > 0)
1519 { 1647 {
1520 if (pri < PRI_MIN) pri = PRI_MIN; 1648 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1521 if (pri > PRI_MAX) pri = PRI_MAX; 1649 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1522 next_pri = pri + PRI_BIAS; 1650 next_pri = pri;
1523 } 1651 }
1524 OUTPUT: 1652 OUTPUT:
1525 RETVAL 1653 RETVAL
1526 1654
1527void 1655void
1528aioreq_nice (int nice = 0) 1656aioreq_nice (int nice = 0)
1529 CODE: 1657 CODE:
1530 nice = next_pri - nice; 1658 nice = next_pri - nice;
1531 if (nice < PRI_MIN) nice = PRI_MIN; 1659 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1532 if (nice > PRI_MAX) nice = PRI_MAX; 1660 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1533 next_pri = nice + PRI_BIAS; 1661 next_pri = nice;
1534 1662
1535void 1663void
1536flush () 1664flush ()
1665 CODE:
1666 while (eio_nreqs ())
1667 {
1668 poll_wait ();
1669 poll_cb ();
1670 }
1671
1672int
1673poll ()
1674 CODE:
1675 poll_wait ();
1676 RETVAL = poll_cb ();
1677 OUTPUT:
1678 RETVAL
1679
1680int
1681poll_fileno ()
1682 CODE:
1683 RETVAL = s_epipe_fd (&respipe);
1684 OUTPUT:
1685 RETVAL
1686
1687int
1688poll_cb (...)
1537 PROTOTYPE: 1689 PROTOTYPE:
1538 CODE: 1690 CODE:
1539 while (nreqs)
1540 {
1541 poll_wait ();
1542 poll_cb (0); 1691 RETVAL = poll_cb ();
1543 }
1544
1545void
1546poll()
1547 PROTOTYPE:
1548 CODE:
1549 if (nreqs)
1550 {
1551 poll_wait ();
1552 poll_cb (0);
1553 }
1554
1555int
1556poll_fileno()
1557 PROTOTYPE:
1558 CODE:
1559 RETVAL = respipe [0];
1560 OUTPUT: 1692 OUTPUT:
1561 RETVAL 1693 RETVAL
1562 1694
1695void
1696poll_wait ()
1697 CODE:
1698 poll_wait ();
1699
1563int 1700int
1564poll_cb(...) 1701nreqs ()
1565 PROTOTYPE:
1566 CODE: 1702 CODE:
1567 RETVAL = poll_cb (0); 1703 RETVAL = eio_nreqs ();
1568 OUTPUT: 1704 OUTPUT:
1569 RETVAL 1705 RETVAL
1570 1706
1571int 1707int
1572poll_some(int max = 0) 1708nready ()
1573 PROTOTYPE: $
1574 CODE: 1709 CODE:
1575 RETVAL = poll_cb (max); 1710 RETVAL = eio_nready ();
1576 OUTPUT: 1711 OUTPUT:
1577 RETVAL 1712 RETVAL
1578 1713
1579void 1714int
1580poll_wait() 1715npending ()
1581 PROTOTYPE:
1582 CODE: 1716 CODE:
1583 if (nreqs) 1717 RETVAL = eio_npending ();
1584 poll_wait ();
1585
1586int
1587nreqs()
1588 PROTOTYPE:
1589 CODE:
1590 RETVAL = nreqs;
1591 OUTPUT: 1718 OUTPUT:
1592 RETVAL 1719 RETVAL
1593 1720
1594int 1721int
1595nready() 1722nthreads ()
1596 PROTOTYPE:
1597 CODE: 1723 CODE:
1598 RETVAL = get_nready (); 1724 RETVAL = eio_nthreads ();
1599 OUTPUT: 1725 OUTPUT:
1600 RETVAL 1726 RETVAL
1601 1727
1602int 1728int
1603npending() 1729fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1604 PROTOTYPE: 1730 CODE:
1731 RETVAL = posix_fadvise (fh, offset, length, advice);
1732 OUTPUT:
1733 RETVAL
1734
1735IV
1736sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1737 CODE:
1738 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1739 OUTPUT:
1740 RETVAL
1741
1742void
1743mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1744 PPCODE:
1745 sv_unmagic (scalar, MMAP_MAGIC);
1746{
1747 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1748 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1749 if (addr == (void *)-1)
1750 XSRETURN_NO;
1751
1752 sv_force_normal (scalar);
1753
1754 /* we store the length in mg_obj, as namlen is I32 :/ */
1755 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1756 ->mg_obj = (SV *)length;
1757
1758 SvUPGRADE (scalar, SVt_PV); /* nop... */
1759
1760 if (!(prot & PROT_WRITE))
1761 SvREADONLY_on (scalar);
1762
1763 if (SvLEN (scalar))
1764 Safefree (SvPVX (scalar));
1765
1766 SvPVX (scalar) = (char *)addr;
1767 SvCUR_set (scalar, length);
1768 SvLEN_set (scalar, 0);
1769 SvPOK_only (scalar);
1770
1771 XSRETURN_YES;
1772}
1773
1774void
1775munmap (SV *scalar)
1605 CODE: 1776 CODE:
1606 RETVAL = get_npending (); 1777 sv_unmagic (scalar, MMAP_MAGIC);
1778
1779int
1780madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1781 ALIAS:
1782 mprotect = 1
1783 CODE:
1784{
1785 STRLEN svlen;
1786 void *addr = SvPVbyte (scalar, svlen);
1787 size_t len = SvUV (length);
1788
1789 if (offset < 0)
1790 offset += svlen;
1791
1792 if (offset < 0 || offset > svlen)
1793 croak ("offset outside of scalar");
1794
1795 if (!SvOK (length) || len + offset > svlen)
1796 len = svlen - offset;
1797
1798 addr = (void *)(((intptr_t)addr) + offset);
1799 eio_page_align (&addr, &len);
1800
1801 switch (ix)
1802 {
1803 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1804 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1805 }
1806}
1607 OUTPUT: 1807 OUTPUT:
1608 RETVAL 1808 RETVAL
1809
1810int
1811munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1812 CODE:
1813{
1814 STRLEN svlen;
1815 void *addr = SvPVbyte (scalar, svlen);
1816 size_t len = SvUV (length);
1817
1818 if (offset < 0)
1819 offset += svlen;
1820
1821 if (offset < 0 || offset > svlen)
1822 croak ("offset outside of scalar");
1823
1824 if (!SvOK (length) || len + offset > svlen)
1825 len = svlen - offset;
1826
1827 addr = (void *)(((intptr_t)addr) + offset);
1828 eio_page_align (&addr, &len);
1829#if _POSIX_MEMLOCK_RANGE
1830 RETVAL = munlock (addr, len);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834}
1835 OUTPUT:
1836 RETVAL
1837
1838int
1839munlockall ()
1840 CODE:
1841#if _POSIX_MEMLOCK
1842 munlockall ();
1843#else
1844 RETVAL = EIO_ENOSYS ();
1845#endif
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1851 CODE:
1852{
1853#if HAVE_LINUX_SPLICE
1854 loff_t off_in_, off_out_;
1855 RETVAL = splice (
1856 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1857 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1858 length, flags
1859 );
1860#else
1861 RETVAL = EIO_ENOSYS ();
1862#endif
1863}
1864 OUTPUT:
1865 RETVAL
1866
1867int
1868tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1869 CODE:
1870#if HAVE_LINUX_SPLICE
1871 RETVAL = tee (rfh, wfh, length, flags);
1872#else
1873 RETVAL = EIO_ENOSYS ();
1874#endif
1875 OUTPUT:
1876 RETVAL
1877
1878int
1879pipesize (aio_rfd rfh, int new_size = -1)
1880 PROTOTYPE: $;$
1881 CODE:
1882#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1883 if (new_size >= 0)
1884 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1885 else
1886 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1887#else
1888 errno = ENOSYS;
1889 RETVAL = -1;
1890#endif
1891 OUTPUT:
1892 RETVAL
1893
1894void _on_next_submit (SV *cb)
1895 CODE:
1896 SvREFCNT_dec (on_next_submit);
1897 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1609 1898
1610PROTOTYPES: DISABLE 1899PROTOTYPES: DISABLE
1900
1901MODULE = IO::AIO PACKAGE = IO::AIO::WD
1902
1903BOOT:
1904{
1905 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1906 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1907}
1908
1909void
1910DESTROY (SV *self)
1911 CODE:
1912{
1913 aio_wd wd = SvAIO_WD (self);
1914#if HAVE_AT
1915 {
1916 SV *callback = &PL_sv_undef;
1917 dREQ; /* clobbers next_pri :/ */
1918 next_pri = req->pri; /* restore next_pri */
1919 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1920 req->type = EIO_WD_CLOSE;
1921 req->wd = wd;
1922 REQ_SEND;
1923 }
1924#else
1925 eio_wd_close_sync (wd);
1926#endif
1927}
1611 1928
1612MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1929MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1613 1930
1614void 1931void
1615cancel (aio_req_ornot req) 1932cancel (aio_req_ornot req)
1616 CODE: 1933 CODE:
1617 req_cancel (req); 1934 eio_cancel (req);
1618 1935
1619void 1936void
1620cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1937cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1621 CODE: 1938 PPCODE:
1939{
1940 if (GIMME_V != G_VOID)
1941 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1942
1943 if (items > 1)
1944 {
1945 SV *cb_cv =get_cb (callback);
1946
1622 SvREFCNT_dec (req->callback); 1947 SvREFCNT_dec (req->callback);
1623 req->callback = newSVsv (callback); 1948 req->callback = SvREFCNT_inc (cb_cv);
1949 }
1950}
1624 1951
1625MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1952MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1626 1953
1627void 1954void
1628add (aio_req grp, ...) 1955add (aio_req grp, ...)
1629 PPCODE: 1956 PPCODE:
1630{ 1957{
1631 int i; 1958 int i;
1632 aio_req req;
1633 1959
1634 if (grp->fd == 2) 1960 if (grp->int1 == 2)
1635 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1961 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1636 1962
1637 for (i = 1; i < items; ++i ) 1963 for (i = 1; i < items; ++i )
1638 { 1964 {
1965 aio_req req;
1966
1639 if (GIMME_V != G_VOID) 1967 if (GIMME_V != G_VOID)
1640 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1968 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1641 1969
1642 req = SvAIO_REQ (ST (i)); 1970 req = SvAIO_REQ (ST (i));
1643 1971
1644 if (req) 1972 if (req)
1645 { 1973 eio_grp_add (grp, req);
1646 ++grp->length;
1647 req->grp = grp;
1648
1649 req->grp_prev = 0;
1650 req->grp_next = grp->grp_first;
1651
1652 if (grp->grp_first)
1653 grp->grp_first->grp_prev = req;
1654
1655 grp->grp_first = req;
1656 }
1657 } 1974 }
1658} 1975}
1659 1976
1660void 1977void
1661cancel_subs (aio_req_ornot req) 1978cancel_subs (aio_req_ornot req)
… …
1670 AV *av; 1987 AV *av;
1671 1988
1672 grp->errorno = errno; 1989 grp->errorno = errno;
1673 1990
1674 av = newAV (); 1991 av = newAV ();
1992 av_extend (av, items - 1);
1675 1993
1676 for (i = 1; i < items; ++i ) 1994 for (i = 1; i < items; ++i )
1677 av_push (av, newSVsv (ST (i))); 1995 av_push (av, newSVsv (ST (i)));
1678 1996
1679 SvREFCNT_dec (grp->data); 1997 SvREFCNT_dec (grp->sv1);
1680 grp->data = (SV *)av; 1998 grp->sv1 = (SV *)av;
1681} 1999}
1682 2000
1683void 2001void
1684errno (aio_req grp, int errorno = errno) 2002errno (aio_req grp, int errorno = errno)
1685 CODE: 2003 CODE:
1686 grp->errorno = errorno; 2004 grp->errorno = errorno;
1687 2005
1688void 2006void
1689limit (aio_req grp, int limit) 2007limit (aio_req grp, int limit)
1690 CODE: 2008 CODE:
1691 grp->fd2 = limit; 2009 eio_grp_limit (grp, limit);
1692 aio_grp_feed (grp);
1693 2010
1694void 2011void
1695feed (aio_req grp, SV *callback=&PL_sv_undef) 2012feed (aio_req grp, SV *callback=&PL_sv_undef)
1696 CODE: 2013 CODE:
1697{ 2014{
1698 SvREFCNT_dec (grp->fh2); 2015 SvREFCNT_dec (grp->sv2);
1699 grp->fh2 = newSVsv (callback); 2016 grp->sv2 = newSVsv (callback);
2017 grp->feed = aio_grp_feed;
1700 2018
1701 if (grp->fd2 <= 0) 2019 if (grp->int2 <= 0)
1702 grp->fd2 = 2; 2020 grp->int2 = 2;
1703 2021
1704 aio_grp_feed (grp); 2022 eio_grp_limit (grp, grp->int2);
1705} 2023}
1706 2024

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