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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.248 by root, Fri Jun 23 22:33:06 2017 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
15 8
16#include "autoconf/config.h" 9#include "schmorp.h"
17
18#include <pthread.h>
19 10
20#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
21#include <errno.h> 13#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 14#include <sys/types.h>
25#include <sys/stat.h> 15#include <sys/stat.h>
26#include <limits.h> 16#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 17#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 18#include <sched.h>
31 19
32#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
33# if __linux
34# include <sys/sendfile.h>
35# elif __freebsd
36# include <sys/socket.h>
37# include <sys/uio.h> 21# include <sys/mman.h>
38# 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. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
39# include <sys/socket.h> 86 #include <sys/time.h>
40# elif __solaris /* not yet */
41# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
42# else 145# else
43# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 147# endif
45#endif 148#endif
46 149
47/* used for struct dirent, AIX doesn't provide it */ 150/* defines all sorts of constants to 0 unless they are already defined */
48#ifndef NAME_MAX 151/* also provides const_iv_ and const_niv_ macros for them */
49# define NAME_MAX 4096 152#include "def0.h"
50#endif
51 153
52#if __ia64 154#ifndef makedev
53# define STACKSIZE 65536 155# define makedev(maj,min) (((maj) << 8) | (min))
54#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55# define STACKSIZE PTHREAD_STACK_MIN
56#else
57# define STACKSIZE 16384
58#endif 156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
59 163
60/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
61#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
62 167
63#define dBUF \ 168/*****************************************************************************/
64 char *aio_buf = malloc (AIO_BUFSIZE); \ 169
65 if (!aio_buf) \ 170static void
171fiemap (eio_req *req)
172{
173 req->result = -1;
174
175#if HAVE_FIEMAP
176 /* assume some c99 */
177 struct fiemap *fiemap = 0;
178 size_t end_offset;
179 int count = req->int3;
180
181 req->flags |= EIO_FLAG_PTR1_FREE;
182
183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
184 /* increase in 3.5kb steps */
185 if (count < 0)
186 count = 8;
187
188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189 errno = ENOMEM;
190 if (!fiemap)
66 return -1; 191 return;
67 192
68#define fBUF free (aio_buf) 193 req->ptr1 = fiemap;
69 194
70enum { 195 fiemap->fm_start = req->offs;
71 REQ_QUIT, 196 fiemap->fm_length = req->size;
72 REQ_OPEN, REQ_CLOSE, 197 fiemap->fm_flags = req->int2;
73 REQ_READ, REQ_WRITE, REQ_READAHEAD, 198 fiemap->fm_extent_count = count;
74 REQ_SENDFILE,
75 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
76 REQ_FSYNC, REQ_FDATASYNC,
77 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
78 REQ_READDIR,
79 REQ_LINK, REQ_SYMLINK,
80 REQ_GROUP, REQ_NOP,
81 REQ_BUSY,
82};
83 199
84#define AIO_REQ_KLASS "IO::AIO::REQ" 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
85#define AIO_GRP_KLASS "IO::AIO::GRP" 201 return;
86 202
87typedef struct aio_cb 203 if (req->int3 >= 0 /* not autosizing */
88{ 204 || !fiemap->fm_mapped_extents /* no more extents */
89 struct aio_cb *volatile next; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
206 goto done;
90 207
91 SV *data, *callback; 208 /* else we have to loop -
92 SV *fh, *fh2; 209 * it would be tempting (actually I tried that first) to just query the
93 void *dataptr, *data2ptr; 210 * number of extents needed, but linux often feels like not returning all
94 Stat_t *statdata; 211 * extents, without telling us it left any out. this complicates
95 off_t offset; 212 * this quite a bit.
96 size_t length;
97 ssize_t result;
98
99 STRLEN dataoffset;
100 int type;
101 int fd, fd2;
102 int errorno;
103 mode_t mode; /* open */
104
105 unsigned char flags;
106 unsigned char pri;
107
108 SV *self; /* the perl counterpart of this request, if any */
109 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
110} aio_cb;
111
112enum {
113 FLAG_CANCELLED = 0x01,
114};
115
116typedef aio_cb *aio_req;
117typedef aio_cb *aio_req_ornot;
118
119enum {
120 PRI_MIN = -4,
121 PRI_MAX = 4,
122
123 DEFAULT_PRI = 0,
124 PRI_BIAS = -PRI_MIN,
125 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
126};
127
128static int next_pri = DEFAULT_PRI + PRI_BIAS;
129
130static int started, wanted;
131static volatile int nreqs;
132static int max_outstanding = 1<<30;
133static int respipe [2];
134
135#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
136# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
137#else
138# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
139#endif
140
141static pthread_mutex_t reslock = AIO_MUTEX_INIT;
142static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
143static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
144
145/*
146 * a somewhat faster data structure might be nice, but
147 * with 8 priorities this actually needs <20 insns
148 * per shift, the most expensive operation.
149 */ 213 */
150typedef struct {
151 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
152 int size;
153} reqq;
154 214
155static reqq req_queue; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
156static reqq res_queue;
157 216
158int reqq_push (reqq *q, aio_req req) 217 for (;;)
159{
160 int pri = req->pri;
161 req->next = 0;
162
163 if (q->qe[pri])
164 { 218 {
165 q->qe[pri]->next = req; 219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
166 q->qe[pri] = req; 220 char scratch[3072];
167 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
168 else
169 q->qe[pri] = q->qs[pri] = req;
170 222
171 return q->size++; 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
172} 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
226 incmap->fm_flags = fiemap->fm_flags;
227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
173 228
174aio_req reqq_shift (reqq *q) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
175{
176 int pri;
177
178 if (!q->size)
179 return 0; 230 return;
180 231
181 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
182 234
183 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
184 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
185 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
186
187 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
188 { 244 {
189 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
190 q->qe[pri] = 0;
191 246
192 return req; 247 if (e->fe_logical + e->fe_length >= end_offset)
248 goto done;
249
250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
251
252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
253 goto done;
254
193 } 255 }
194 } 256 }
195 257
196 abort (); 258done:
197} 259 req->result = 0;
198 260
261#else
262 errno = ENOSYS;
263#endif
264}
265
266/*****************************************************************************/
267
268enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270};
271
272typedef eio_req *aio_req;
273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
275
276static SV *on_next_submit;
277static int next_pri = EIO_PRI_DEFAULT;
278static int max_outstanding;
279
280static s_epipe respipe;
281
282static void req_destroy (aio_req req);
199static void req_invoke (aio_req req); 283static void req_cancel (aio_req req);
200static void req_free (aio_req req); 284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
201 298
202/* must be called at most once */ 299/* must be called at most once */
203static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
204{ 302{
205 if (!req->self) 303 if (!req->self)
206 { 304 {
207 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
208 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
209 } 307 }
210 308
211 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
212} 310}
213 311
214static aio_req SvAIO_REQ (SV *sv) 312static SV *
313newSVaio_wd (aio_wd wd)
314{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
215{ 320{
216 MAGIC *mg; 321 MAGIC *mg;
217 322
218 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
219 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
220 329
221 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
222 331
223 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
224} 333}
225 334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
226static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
227{ 373{
228 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
229 { 375 {
230 int old_len = grp->length;
231
232 if (grp->fh2 && SvOK (grp->fh2))
233 {
234 dSP; 376 dSP;
235 377
236 ENTER; 378 ENTER;
237 SAVETMPS; 379 SAVETMPS;
238 PUSHMARK (SP); 380 PUSHMARK (SP);
239 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
240 PUTBACK; 382 PUTBACK;
241 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
242 SPAGAIN; 384 SPAGAIN;
243 FREETMPS; 385 FREETMPS;
244 LEAVE; 386 LEAVE;
245 }
246
247 /* stop if no progress has been made */
248 if (old_len == grp->length)
249 {
250 SvREFCNT_dec (grp->fh2);
251 grp->fh2 = 0;
252 break;
253 }
254 } 387 }
255} 388}
256 389
257static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
258{ 392{
259 --grp->length; 393 eio_submit (req);
260 394
261 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
262 aio_grp_feed (grp);
263
264 /* finish, if done */
265 if (!grp->length && grp->fd)
266 { 396 {
267 req_invoke (grp); 397 dSP;
268 req_free (grp); 398 SV *cb = sv_2mortal (on_next_submit);
399
400 on_next_submit = 0;
401
402 PUSHMARK (SP);
403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
269 } 405 }
270} 406}
271 407
272static void poll_wait () 408static int
409req_invoke (eio_req *req)
273{ 410{
274 fd_set rfd; 411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
275 413
276 while (nreqs) 414 if (!EIO_CANCELLED (req) && req->callback)
277 { 415 {
278 int size;
279#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
280 pthread_mutex_lock (&reslock);
281#endif
282 size = res_queue.size;
283#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
284 pthread_mutex_unlock (&reslock);
285#endif
286
287 if (size)
288 return;
289
290 FD_ZERO(&rfd);
291 FD_SET(respipe [0], &rfd);
292
293 select (respipe [0] + 1, &rfd, 0, 0, 0);
294 }
295}
296
297static void req_invoke (aio_req req)
298{
299 dSP; 416 dSP;
300 417 static SV *sv_result_cache; /* caches the result integer SV */
301 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 418 SV *sv_result;
302 {
303 errno = req->errorno;
304 419
305 ENTER; 420 ENTER;
306 SAVETMPS; 421 SAVETMPS;
307 PUSHMARK (SP); 422 PUSHMARK (SP);
308 EXTEND (SP, 1); 423 EXTEND (SP, 1);
309 424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
427 {
428 sv_result = sv_result_cache; sv_result_cache = 0;
429 SvIV_set (sv_result, req->result);
430 SvIOK_only (sv_result);
431 }
432 else
433 {
434 sv_result = newSViv (req->result);
435 SvREADONLY_on (sv_result);
436 }
437
310 switch (req->type) 438 switch (req->type)
311 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
312 case REQ_READDIR: 444 case EIO_READDIR:
313 { 445 {
314 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
315 447
316 if (req->result >= 0) 448 if (req->result >= 0)
317 { 449 {
450 int i;
318 char *buf = req->data2ptr; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
319 AV *av = newAV (); 453 AV *av = newAV ();
320 454
321 while (req->result) 455 av_extend (av, req->result - 1);
456
457 for (i = 0; i < req->result; ++i)
322 { 458 {
459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
323 SV *sv = newSVpv (buf, 0); 489 SV *name = newSVpv (names, 0);
324
325 av_push (av, sv); 490 av_store (av, i, name);
326 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
327 req->result--; 492 }
328 } 493 }
329 494
330 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
331 } 496 }
332 497
333 PUSHs (rv); 498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
334 } 502 }
335 break; 503 break;
336 504
337 case REQ_OPEN: 505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
338 { 511 {
339 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
340 SV *fh; 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));
341 524
342 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
343 PUTBACK;
344 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
345 SPAGAIN;
346 526
347 fh = SvREFCNT_inc (POPs); 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
348 540
349 PUSHMARK (SP); 541 PUSHs (rv);
350 XPUSHs (sv_2mortal (fh));
351 } 542 }
543
352 break; 544 break;
353 545
354 case REQ_GROUP: 546 case EIO_GROUP:
355 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
356 548
357 if (req->data) 549 if (req->sv1)
358 { 550 {
359 int i; 551 int i;
360 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
361 553
362 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
363 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
364 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
365 } 557 }
366 break; 558 break;
367 559
368 case REQ_NOP: 560 case EIO_NOP:
369 case REQ_BUSY: 561 case EIO_BUSY:
370 break; 562 break;
371 563
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
372 default: 641 default:
373 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
374 break; 643 break;
375 } 644 }
376 645
646 errno = req->errorno;
377 647
378 PUTBACK; 648 PUTBACK;
379 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
380 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;
381 656
382 FREETMPS; 657 FREETMPS;
383 LEAVE; 658 LEAVE;
659
660 PUTBACK;
384 } 661 }
385 662
386 if (req->grp) 663 return !!SvTRUE (ERRSV);
387 {
388 aio_req grp = req->grp;
389
390 /* unlink request */
391 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
392 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
393
394 if (grp->grp_first == req)
395 grp->grp_first = req->grp_next;
396
397 aio_grp_dec (grp);
398 }
399
400 if (SvTRUE (ERRSV))
401 {
402 req_free (req);
403 croak (0);
404 }
405} 664}
406 665
407static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
408{ 668{
409 if (req->self) 669 if (req->self)
410 { 670 {
411 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
412 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
413 } 673 }
414 674
415 SvREFCNT_dec (req->data);
416 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
417 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
418 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
419 Safefree (req->statdata);
420 680
421 if (req->type == REQ_READDIR && req->result >= 0)
422 free (req->data2ptr);
423
424 Safefree (req); 681 free (req);
425} 682}
426 683
427static void req_cancel (aio_req req) 684static void
685req_cancel_subs (aio_req grp)
428{ 686{
429 req->flags |= FLAG_CANCELLED;
430
431 if (req->type == REQ_GROUP) 687 if (grp->type != EIO_GROUP)
688 return;
689
690 SvREFCNT_dec (grp->sv2);
691 grp->sv2 = 0;
692
693 eio_grp_cancel (grp);
694}
695
696static void ecb_cold
697create_respipe (void)
698{
699 if (s_epipe_renew (&respipe))
700 croak ("IO::AIO: unable to initialize result pipe");
701}
702
703static void
704poll_wait (void)
705{
706 while (eio_nreqs ())
432 { 707 {
433 aio_req sub; 708 int size;
434 709
435 for (sub = req->grp_first; sub; sub = sub->grp_next) 710 X_LOCK (EIO_POOL->reslock);
436 req_cancel (sub); 711 size = EIO_POOL->res_queue.size;
712 X_UNLOCK (EIO_POOL->reslock);
713
714 if (size)
715 return;
716
717 etp_maybe_start_thread (EIO_POOL);
718
719 s_epipe_wait (&respipe);
437 } 720 }
438} 721}
439 722
440static int poll_cb () 723static int
724poll_cb (void)
441{ 725{
442 dSP;
443 int count = 0;
444 int do_croak = 0;
445 aio_req req;
446
447 for (;;) 726 for (;;)
448 { 727 {
449 pthread_mutex_lock (&reslock); 728 int res = eio_poll ();
450 req = reqq_shift (&res_queue);
451 729
452 if (req) 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#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
453 { 836 {
454 if (!res_queue.size) 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
839
840 if (SvOK (wdob))
455 { 841 {
456 /* read any signals sent by the worker threads */ 842 *wd = SvAIO_WD (wdob);
457 char buf [32]; 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
458 while (read (respipe [0], buf, 32) == 32)
459 ;
460 } 844 }
845 else
846 *wd = EIO_INVALID_WD;
461 } 847 }
462 848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
463 pthread_mutex_unlock (&reslock);
464
465 if (!req)
466 break;
467
468 --nreqs;
469
470 if (req->type == REQ_QUIT)
471 started--;
472 else if (req->type == REQ_GROUP && req->length)
473 { 849 {
474 req->fd = 1; /* mark request as delayed */ 850 *wd = (aio_wd)(long)SvIVX (rv);
475 continue; 851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
476 } 854 }
477 else 855 else
478 { 856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
479 if (req->type == REQ_READ)
480 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
481
482 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
483 SvREADONLY_off (req->data);
484
485 if (req->statdata)
486 {
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result;
489 PL_statcache = *(req->statdata);
490 }
491
492 req_invoke (req);
493
494 count++;
495 }
496
497 req_free (req);
498 } 857 }
499 858
500 return count; 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
501} 861}
502 862
503static void *aio_proc(void *arg); 863static void ecb_noinline
504 864req_set_path1 (aio_req req, SV *path)
505static void start_thread (void)
506{ 865{
507 sigset_t fullsigset, oldsigset; 866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
508 pthread_t tid;
509 pthread_attr_t attr;
510
511 pthread_attr_init (&attr);
512 pthread_attr_setstacksize (&attr, STACKSIZE);
513 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
514
515 sigfillset (&fullsigset);
516 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
517
518 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
519 started++;
520
521 sigprocmask (SIG_SETMASK, &oldsigset, 0);
522} 867}
523 868
524static void req_send (aio_req req) 869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
525{ 871{
526 while (started < wanted && nreqs >= started) 872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
527 start_thread ();
528 873
529 ++nreqs; 874 switch (SvTYPE (rv))
530
531 pthread_mutex_lock (&reqlock);
532 reqq_push (&req_queue, req);
533 pthread_cond_signal (&reqwait);
534 pthread_mutex_unlock (&reqlock);
535
536 if (nreqs > max_outstanding)
537 for (;;)
538 {
539 poll_cb ();
540
541 if (nreqs <= max_outstanding)
542 break;
543
544 poll_wait ();
545 }
546}
547
548static void end_thread (void)
549{
550 aio_req req;
551
552 Newz (0, req, 1, aio_cb);
553
554 req->type = REQ_QUIT;
555 req->pri = PRI_MAX + PRI_BIAS;
556
557 req_send (req);
558}
559
560static void min_parallel (int nthreads)
561{
562 if (wanted < nthreads)
563 wanted = nthreads;
564}
565
566static void max_parallel (int nthreads)
567{
568 int cur = started;
569
570 if (wanted > nthreads)
571 wanted = nthreads;
572
573 while (cur > wanted)
574 { 875 {
575 end_thread (); 876 case SVt_PVIO:
576 cur--; 877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882 break;
883
884 default:
885 req->type = type_path;
886 req_set_path1 (req, fh_or_path);
887 break;
577 } 888 }
578
579 while (started > wanted)
580 {
581 poll_wait ();
582 poll_cb ();
583 }
584} 889}
585 890
586static void create_pipe () 891XS(boot_IO__AIO) ecb_cold;
587{
588 if (pipe (respipe))
589 croak ("unable to initialize result pipe");
590 892
591 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 893MODULE = IO::AIO PACKAGE = IO::AIO
592 croak ("cannot set result pipe to nonblocking mode");
593 894
594 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 895PROTOTYPES: ENABLE
595 croak ("cannot set result pipe to nonblocking mode");
596}
597 896
598/*****************************************************************************/ 897BOOT:
599/* work around various missing functions */
600
601#if !HAVE_PREADWRITE
602# define pread aio_pread
603# define pwrite aio_pwrite
604
605/*
606 * make our pread/pwrite safe against themselves, but not against
607 * normal read/write by using a mutex. slows down execution a lot,
608 * but that's your problem, not mine.
609 */
610static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
611
612static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
613{ 898{
614 ssize_t res; 899 static const struct {
615 off_t ooffset; 900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
616 906
617 pthread_mutex_lock (&preadwritelock); 907 /* you have to re-run ./gendef0 after adding/removing any constants here */
618 ooffset = lseek (fd, 0, SEEK_CUR); 908 /* the first block can be undef if missing */
619 lseek (fd, offset, SEEK_SET); 909 const_iv (ENOSYS)
620 res = read (fd, buf, count); 910 const_iv (EXDEV)
621 lseek (fd, ooffset, SEEK_SET); 911 const_iv (EBADR)
622 pthread_mutex_unlock (&preadwritelock);
623 912
624 return res; 913 /* for lseek */
625} 914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
626 916
627static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
628{ 918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
629 ssize_t res; 919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
630 off_t ooffset; 920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
631 923
632 pthread_mutex_lock (&preadwritelock); 924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
633 ooffset = lseek (fd, 0, SEEK_CUR); 925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
634 lseek (fd, offset, SEEK_SET); 926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
635 res = write (fd, buf, count); 927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
636 lseek (fd, offset, SEEK_SET); 928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
637 pthread_mutex_unlock (&preadwritelock);
638 929
639 return res; 930 /* the second block will be 0 when missing */
640} 931 const_iv (O_RDONLY)
641#endif 932 const_iv (O_WRONLY)
933 const_iv (O_RDWR)
934 const_iv (O_CREAT)
935 const_iv (O_TRUNC)
936 const_iv (O_EXCL)
937 const_iv (O_APPEND)
642 938
643#if !HAVE_FDATASYNC 939 const_iv (O_ASYNC)
644# define fdatasync fsync 940 const_iv (O_DIRECT)
645#endif 941 const_iv (O_NOATIME)
646 942
647#if !HAVE_READAHEAD 943 const_iv (O_CLOEXEC)
648# define readahead aio_readahead 944 const_iv (O_NOCTTY)
945 const_iv (O_NOFOLLOW)
946 const_iv (O_NONBLOCK)
947 const_iv (O_EXEC)
948 const_iv (O_SEARCH)
949 const_iv (O_DIRECTORY)
950 const_iv (O_DSYNC)
951 const_iv (O_RSYNC)
952 const_iv (O_SYNC)
953 const_iv (O_PATH)
954 const_iv (O_TMPFILE)
955 const_iv (O_TTY_INIT)
649 956
650static ssize_t readahead (int fd, off_t offset, size_t count) 957 const_iv (S_IFIFO)
651{ 958 const_iv (S_IFCHR)
652 dBUF; 959 const_iv (S_IFBLK)
960 const_iv (S_IFLNK)
961 const_iv (S_IFREG)
962 const_iv (S_IFDIR)
963 const_iv (S_IFWHT)
964 const_iv (S_IFSOCK)
965 const_iv (S_IFMT)
653 966
654 while (count > 0) 967 const_iv (ST_RDONLY)
655 { 968 const_iv (ST_NOSUID)
656 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 969 const_iv (ST_NODEV)
970 const_iv (ST_NOEXEC)
971 const_iv (ST_SYNCHRONOUS)
972 const_iv (ST_MANDLOCK)
973 const_iv (ST_WRITE)
974 const_iv (ST_APPEND)
975 const_iv (ST_IMMUTABLE)
976 const_iv (ST_NOATIME)
977 const_iv (ST_NODIRATIME)
978 const_iv (ST_RELATIME)
657 979
658 pread (fd, aio_buf, len, offset); 980 const_iv (PROT_NONE)
659 offset += len; 981 const_iv (PROT_EXEC)
660 count -= len; 982 const_iv (PROT_READ)
661 } 983 const_iv (PROT_WRITE)
662 984
663 fBUF; 985 const_iv (MAP_PRIVATE)
986 const_iv (MAP_SHARED)
987 const_iv (MAP_FIXED)
988 const_iv (MAP_ANONYMOUS)
664 989
665 errno = 0; 990 /* linuxish */
666} 991 const_iv (MAP_LOCKED)
667#endif 992 const_iv (MAP_NORESERVE)
993 const_iv (MAP_POPULATE)
994 const_iv (MAP_NONBLOCK)
995 const_iv (MAP_GROWSDOWN)
996 const_iv (MAP_32BIT)
997 const_iv (MAP_HUGETLB)
998 const_iv (MAP_STACK)
668 999
669#if !HAVE_READDIR_R 1000 const_iv (F_DUPFD_CLOEXEC)
670# define readdir_r aio_readdir_r
671 1001
672static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1002 const_iv (F_OFD_GETLK)
673 1003 const_iv (F_OFD_SETLK)
674static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1004 const_iv (F_OFD_GETLKW)
675{
676 struct dirent *e;
677 int errorno;
678 1005
679 pthread_mutex_lock (&readdirlock); 1006 const_iv (FIFREEZE)
1007 const_iv (FITHAW)
1008 const_iv (FITRIM)
1009 const_iv (FICLONE)
1010 const_iv (FICLONERANGE)
1011 const_iv (FIDEDUPERANGE)
680 1012
681 e = readdir (dirp); 1013 const_iv (FS_IOC_GETFLAGS)
682 errorno = errno; 1014 const_iv (FS_IOC_SETFLAGS)
1015 const_iv (FS_IOC_GETVERSION)
1016 const_iv (FS_IOC_SETVERSION)
1017 const_iv (FS_IOC_FIEMAP)
1018 const_iv (FS_IOC_FSGETXATTR)
1019 const_iv (FS_IOC_FSSETXATTR)
1020 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1021 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1022 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
683 1023
684 if (e) 1024 const_iv (FS_KEY_DESCRIPTOR_SIZE)
685 {
686 *res = ent;
687 strcpy (ent->d_name, e->d_name);
688 }
689 else
690 *res = 0;
691 1025
692 pthread_mutex_unlock (&readdirlock); 1026 const_iv (FS_SECRM_FL)
1027 const_iv (FS_UNRM_FL)
1028 const_iv (FS_COMPR_FL)
1029 const_iv (FS_SYNC_FL)
1030 const_iv (FS_IMMUTABLE_FL)
1031 const_iv (FS_APPEND_FL)
1032 const_iv (FS_NODUMP_FL)
1033 const_iv (FS_NOATIME_FL)
1034 const_iv (FS_DIRTY_FL)
1035 const_iv (FS_COMPRBLK_FL)
1036 const_iv (FS_NOCOMP_FL)
1037 const_iv (FS_ENCRYPT_FL)
1038 const_iv (FS_BTREE_FL)
1039 const_iv (FS_INDEX_FL)
1040 const_iv (FS_JOURNAL_DATA_FL)
1041 const_iv (FS_NOTAIL_FL)
1042 const_iv (FS_DIRSYNC_FL)
1043 const_iv (FS_TOPDIR_FL)
1044 const_iv (FS_FL_USER_MODIFIABLE)
693 1045
694 errno = errorno; 1046 const_iv (FS_XFLAG_REALTIME)
695 return e ? 0 : -1; 1047 const_iv (FS_XFLAG_PREALLOC)
696} 1048 const_iv (FS_XFLAG_IMMUTABLE)
697#endif 1049 const_iv (FS_XFLAG_APPEND)
1050 const_iv (FS_XFLAG_SYNC)
1051 const_iv (FS_XFLAG_NOATIME)
1052 const_iv (FS_XFLAG_NODUMP)
1053 const_iv (FS_XFLAG_RTINHERIT)
1054 const_iv (FS_XFLAG_PROJINHERIT)
1055 const_iv (FS_XFLAG_NOSYMLINKS)
1056 const_iv (FS_XFLAG_EXTSIZE)
1057 const_iv (FS_XFLAG_EXTSZINHERIT)
1058 const_iv (FS_XFLAG_NODEFRAG)
1059 const_iv (FS_XFLAG_FILESTREAM)
1060 const_iv (FS_XFLAG_DAX)
1061 const_iv (FS_XFLAG_HASATTR)
698 1062
699/* sendfile always needs emulation */ 1063 const_iv (FIEMAP_FLAG_SYNC)
700static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1064 const_iv (FIEMAP_FLAG_XATTR)
701{ 1065 const_iv (FIEMAP_FLAGS_COMPAT)
702 ssize_t res; 1066 const_iv (FIEMAP_EXTENT_LAST)
1067 const_iv (FIEMAP_EXTENT_UNKNOWN)
1068 const_iv (FIEMAP_EXTENT_DELALLOC)
1069 const_iv (FIEMAP_EXTENT_ENCODED)
1070 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1071 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1072 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1073 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1074 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1075 const_iv (FIEMAP_EXTENT_MERGED)
1076 const_iv (FIEMAP_EXTENT_SHARED)
703 1077
704 if (!count) 1078 const_iv (SPLICE_F_MOVE)
705 return 0; 1079 const_iv (SPLICE_F_NONBLOCK)
1080 const_iv (SPLICE_F_MORE)
1081 const_iv (SPLICE_F_GIFT)
706 1082
707#if HAVE_SENDFILE 1083 /* these are libeio constants, and are independent of gendef0 */
708# if __linux 1084 const_eio (SEEK_SET)
709 res = sendfile (ofd, ifd, &offset, count); 1085 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END)
710 1087
711# elif __freebsd 1088 const_eio (MCL_FUTURE)
712 /* 1089 const_eio (MCL_CURRENT)
713 * Of course, the freebsd sendfile is a dire hack with no thoughts
714 * wasted on making it similar to other I/O functions.
715 */
716 {
717 off_t sbytes;
718 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
719 1090
720 if (res < 0 && sbytes) 1091 const_eio (MS_ASYNC)
721 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1092 const_eio (MS_INVALIDATE)
722 res = sbytes; 1093 const_eio (MS_SYNC)
1094
1095 const_eio (MT_MODIFY)
1096
1097 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1098 const_eio (SYNC_FILE_RANGE_WRITE)
1099 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1100
1101 const_eio (FALLOC_FL_KEEP_SIZE)
1102 const_eio (FALLOC_FL_PUNCH_HOLE)
1103 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1104 const_eio (FALLOC_FL_ZERO_RANGE)
1105 const_eio (FALLOC_FL_INSET_RANGE)
1106 const_eio (FALLOC_FL_UNSHARE_RANGE)
1107
1108 const_eio (RENAME_NOREPLACE)
1109 const_eio (RENAME_EXCHANGE)
1110 const_eio (RENAME_WHITEOUT)
1111
1112 const_eio (READDIR_DENTS)
1113 const_eio (READDIR_DIRS_FIRST)
1114 const_eio (READDIR_STAT_ORDER)
1115 const_eio (READDIR_FOUND_UNKNOWN)
1116
1117 const_eio (DT_UNKNOWN)
1118 const_eio (DT_FIFO)
1119 const_eio (DT_CHR)
1120 const_eio (DT_DIR)
1121 const_eio (DT_BLK)
1122 const_eio (DT_REG)
1123 const_eio (DT_LNK)
1124 const_eio (DT_SOCK)
1125 const_eio (DT_WHT)
723 } 1126 };
724 1127
725# elif __hpux 1128 aio_stash = gv_stashpv ("IO::AIO" , 1);
726 res = sendfile (ofd, ifd, offset, count, 0, 0); 1129 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1130 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1131 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
727 1132
728# elif __solaris 1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
729 { 1134 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
730 struct sendfilevec vec;
731 size_t sbytes;
732 1135
733 vec.sfv_fd = ifd; 1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
734 vec.sfv_flag = 0;
735 vec.sfv_off = offset;
736 vec.sfv_len = count;
737 1137
738 res = sendfilev (ofd, &vec, 1, &sbytes); 1138 reinit ();
1139}
739 1140
740 if (res < 0 && sbytes) 1141void
1142reinit ()
1143 PROTOTYPE:
1144
1145void
1146max_poll_reqs (unsigned int nreqs)
1147 PROTOTYPE: $
1148 CODE:
1149 eio_set_max_poll_reqs (nreqs);
1150
1151void
1152max_poll_time (double nseconds)
1153 PROTOTYPE: $
1154 CODE:
1155 eio_set_max_poll_time (nseconds);
1156
1157void
1158min_parallel (unsigned int nthreads)
1159 PROTOTYPE: $
1160 CODE:
1161 eio_set_min_parallel (nthreads);
1162
1163void
1164max_parallel (unsigned int nthreads)
1165 PROTOTYPE: $
1166 CODE:
1167 eio_set_max_parallel (nthreads);
1168
1169void
1170max_idle (unsigned int nthreads)
1171 PROTOTYPE: $
1172 CODE:
1173 eio_set_max_idle (nthreads);
1174
1175void
1176idle_timeout (unsigned int seconds)
1177 PROTOTYPE: $
1178 CODE:
1179 eio_set_idle_timeout (seconds);
1180
1181void
1182max_outstanding (unsigned int maxreqs)
1183 PROTOTYPE: $
1184 CODE:
1185 max_outstanding = maxreqs;
1186
1187void
1188aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1189 PPCODE:
1190{
1191 dREQ;
1192
1193 req->type = EIO_WD_OPEN;
1194 req_set_path1 (req, pathname);
1195
1196 REQ_SEND;
1197}
1198
1199void
1200aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1201 PPCODE:
1202{
1203 dREQ;
1204
1205 req->type = EIO_OPEN;
1206 req_set_path1 (req, pathname);
1207 req->int1 = flags;
1208 req->int2 = mode;
1209
1210 REQ_SEND;
1211}
1212
1213void
1214aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1215 ALIAS:
1216 aio_fsync = EIO_FSYNC
1217 aio_fdatasync = EIO_FDATASYNC
1218 aio_syncfs = EIO_SYNCFS
1219 PPCODE:
1220{
1221 int fd = s_fileno_croak (fh, 0);
1222 dREQ;
1223
1224 req->type = ix;
1225 req->sv1 = newSVsv (fh);
1226 req->int1 = fd;
1227
1228 REQ_SEND;
1229}
1230
1231void
1232aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1233 PPCODE:
1234{
1235 int fd = s_fileno_croak (fh, 0);
1236 dREQ;
1237
1238 req->type = EIO_SYNC_FILE_RANGE;
1239 req->sv1 = newSVsv (fh);
1240 req->int1 = fd;
1241 req->offs = offset;
741 res = sbytes; 1242 req->size = nbytes;
742 } 1243 req->int2 = flags;
743 1244
744# endif 1245 REQ_SEND;
1246}
1247
1248void
1249aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1250 PPCODE:
1251{
1252 int fd = s_fileno_croak (fh, 0);
1253 dREQ;
1254
1255 req->type = EIO_FALLOCATE;
1256 req->sv1 = newSVsv (fh);
1257 req->int1 = fd;
1258 req->int2 = mode;
1259 req->offs = offset;
1260 req->size = len;
1261
1262 REQ_SEND;
1263}
1264
1265void
1266aio_close (SV *fh, SV *callback = &PL_sv_undef)
1267 PPCODE:
1268{
1269 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1270 int fd = s_fileno_croak (fh, 0);
1271 dREQ;
1272
1273 if (expect_false (close_fd < 0))
1274 {
1275 int pipefd [2];
1276
1277 if (
1278#ifdef _WIN32
1279 _pipe (pipefd, 1, _O_BINARY) < 0
745#else 1280#else
746 res = -1; 1281 pipe (pipefd) < 0
747 errno = ENOSYS; 1282 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
748#endif 1283#endif
749 1284 || close (pipefd [1]) < 0
750 if (res < 0
751 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
752#if __solaris
753 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
754#endif
755 )
756 )
757 {
758 /* emulate sendfile. this is a major pain in the ass */
759 dBUF;
760
761 res = 0;
762
763 while (count)
764 {
765 ssize_t cnt;
766
767 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
768
769 if (cnt <= 0)
770 { 1285 )
771 if (cnt && !res) res = -1; 1286 abort (); /*D*/
772 break;
773 }
774 1287
775 cnt = write (ofd, aio_buf, cnt); 1288 close_fd = pipefd [0];
776
777 if (cnt <= 0)
778 {
779 if (cnt && !res) res = -1;
780 break;
781 }
782
783 offset += cnt;
784 res += cnt;
785 count -= cnt;
786 }
787
788 fBUF;
789 }
790
791 return res;
792}
793
794/* read a full directory */
795static int scandir_ (const char *path, void **namesp)
796{
797 DIR *dirp;
798 union
799 {
800 struct dirent d;
801 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
802 } *u;
803 struct dirent *entp;
804 char *name, *names;
805 int memlen = 4096;
806 int memofs = 0;
807 int res = 0;
808 int errorno;
809
810 dirp = opendir (path);
811 if (!dirp)
812 return -1;
813
814 u = malloc (sizeof (*u));
815 names = malloc (memlen);
816
817 if (u && names)
818 for (;;)
819 {
820 errno = 0;
821 readdir_r (dirp, &u->d, &entp);
822
823 if (!entp)
824 break;
825
826 name = entp->d_name;
827
828 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
829 {
830 int len = strlen (name) + 1;
831
832 res++;
833
834 while (memofs + len > memlen)
835 {
836 memlen *= 2;
837 names = realloc (names, memlen);
838 if (!names)
839 break;
840 }
841
842 memcpy (names + memofs, name, len);
843 memofs += len;
844 } 1289 }
845 }
846 1290
847 errorno = errno; 1291 req->type = EIO_DUP2;
848 free (u); 1292 req->int1 = close_fd;
849 closedir (dirp); 1293 req->sv2 = newSVsv (fh);
1294 req->int2 = fd;
850 1295
851 if (errorno) 1296 REQ_SEND;
852 {
853 free (names);
854 errno = errorno;
855 res = -1;
856 }
857
858 *namesp = (void *)names;
859 return res;
860} 1297}
861 1298
862/*****************************************************************************/
863
864static void *aio_proc (void *thr_arg)
865{
866 aio_req req;
867 int type;
868
869 do
870 {
871 pthread_mutex_lock (&reqlock);
872
873 for (;;)
874 {
875 req = reqq_shift (&req_queue);
876
877 if (req)
878 break;
879
880 pthread_cond_wait (&reqwait, &reqlock);
881 }
882
883 pthread_mutex_unlock (&reqlock);
884
885 errno = 0; /* strictly unnecessary */
886 type = req->type; /* remember type for QUIT check */
887
888 if (!(req->flags & FLAG_CANCELLED))
889 switch (type)
890 {
891 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
892 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
893
894 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
895 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
896
897 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
898 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
899 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
900
901 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
902 case REQ_CLOSE: req->result = close (req->fd); break;
903 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
904 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
905 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
906 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
907 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
908
909 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
910 case REQ_FSYNC: req->result = fsync (req->fd); break;
911 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
912
913 case REQ_BUSY:
914 {
915 struct timeval tv;
916
917 tv.tv_sec = req->fd;
918 tv.tv_usec = req->fd2;
919
920 req->result = select (0, 0, 0, 0, &tv);
921 }
922
923 case REQ_GROUP:
924 case REQ_NOP:
925 case REQ_QUIT:
926 break;
927
928 default:
929 req->result = ENOSYS;
930 break;
931 }
932
933 req->errorno = errno;
934
935 pthread_mutex_lock (&reslock);
936
937 if (!reqq_push (&res_queue, req))
938 /* write a dummy byte to the pipe so fh becomes ready */
939 write (respipe [1], &respipe, 1);
940
941 pthread_mutex_unlock (&reslock);
942 }
943 while (type != REQ_QUIT);
944
945 return 0;
946}
947
948/*****************************************************************************/
949
950static void atfork_prepare (void)
951{
952 pthread_mutex_lock (&reqlock);
953 pthread_mutex_lock (&reslock);
954#if !HAVE_PREADWRITE
955 pthread_mutex_lock (&preadwritelock);
956#endif
957#if !HAVE_READDIR_R
958 pthread_mutex_lock (&readdirlock);
959#endif
960}
961
962static void atfork_parent (void)
963{
964#if !HAVE_READDIR_R
965 pthread_mutex_unlock (&readdirlock);
966#endif
967#if !HAVE_PREADWRITE
968 pthread_mutex_unlock (&preadwritelock);
969#endif
970 pthread_mutex_unlock (&reslock);
971 pthread_mutex_unlock (&reqlock);
972}
973
974static void atfork_child (void)
975{
976 aio_req prv;
977
978 started = 0;
979
980 while (prv = reqq_shift (&req_queue))
981 req_free (prv);
982
983 while (prv = reqq_shift (&res_queue))
984 req_free (prv);
985
986 close (respipe [0]);
987 close (respipe [1]);
988 create_pipe ();
989
990 atfork_parent ();
991}
992
993#define dREQ \
994 aio_req req; \
995 int req_pri = next_pri; \
996 next_pri = DEFAULT_PRI + PRI_BIAS; \
997 \
998 if (SvOK (callback) && !SvROK (callback)) \
999 croak ("callback must be undef or of reference type"); \
1000 \
1001 Newz (0, req, 1, aio_cb); \
1002 if (!req) \
1003 croak ("out of memory during aio_req allocation"); \
1004 \
1005 req->callback = newSVsv (callback); \
1006 req->pri = req_pri
1007
1008#define REQ_SEND \
1009 req_send (req); \
1010 \
1011 if (GIMME_V != G_VOID) \
1012 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1013
1014MODULE = IO::AIO PACKAGE = IO::AIO
1015
1016PROTOTYPES: ENABLE
1017
1018BOOT:
1019{
1020 HV *stash = gv_stashpv ("IO::AIO", 1);
1021 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1022 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1023 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1024
1025 create_pipe ();
1026 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1027}
1028
1029void 1299void
1030min_parallel (nthreads) 1300aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1031 int nthreads
1032 PROTOTYPE: $
1033
1034void
1035max_parallel (nthreads)
1036 int nthreads
1037 PROTOTYPE: $
1038
1039int
1040max_outstanding (nreqs)
1041 int nreqs
1042 PROTOTYPE: $
1043 CODE: 1301 PPCODE:
1044 RETVAL = max_outstanding;
1045 max_outstanding = nreqs;
1046
1047void
1048aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1049 SV * pathname
1050 int flags
1051 int mode
1052 SV * callback
1053 PROTOTYPE: $$$;$
1054 PPCODE:
1055{ 1302{
1303 int fd = s_fileno_croak (fh, 0);
1056 dREQ; 1304 dREQ;
1057 1305
1058 req->type = REQ_OPEN; 1306 req->type = EIO_SEEK;
1059 req->data = newSVsv (pathname); 1307 req->sv1 = newSVsv (fh);
1060 req->dataptr = SvPVbyte_nolen (req->data); 1308 req->int1 = fd;
1061 req->fd = flags; 1309 req->offs = SvVAL64 (offset);
1062 req->mode = mode; 1310 req->int2 = whence;
1063 1311
1064 REQ_SEND; 1312 REQ_SEND;
1065} 1313}
1066 1314
1067void 1315void
1068aio_close (fh,callback=&PL_sv_undef) 1316aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1069 SV * fh
1070 SV * callback
1071 PROTOTYPE: $;$
1072 ALIAS: 1317 ALIAS:
1073 aio_close = REQ_CLOSE
1074 aio_fsync = REQ_FSYNC
1075 aio_fdatasync = REQ_FDATASYNC
1076 PPCODE:
1077{
1078 dREQ;
1079
1080 req->type = ix;
1081 req->fh = newSVsv (fh);
1082 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1083
1084 REQ_SEND (req);
1085}
1086
1087void
1088aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1089 SV * fh
1090 UV offset
1091 UV length
1092 SV * data
1093 UV dataoffset
1094 SV * callback
1095 ALIAS:
1096 aio_read = REQ_READ 1318 aio_read = EIO_READ
1097 aio_write = REQ_WRITE 1319 aio_write = EIO_WRITE
1098 PROTOTYPE: $$$$$;$
1099 PPCODE: 1320 PPCODE:
1100{ 1321{
1101 aio_req req;
1102 STRLEN svlen; 1322 STRLEN svlen;
1323 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1103 char *svptr = SvPVbyte (data, svlen); 1324 char *svptr = SvPVbyte (data, svlen);
1104 1325 UV len = SvUV (length);
1105 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data);
1107 1326
1108 if (dataoffset < 0) 1327 if (dataoffset < 0)
1109 dataoffset += svlen; 1328 dataoffset += svlen;
1110 1329
1111 if (dataoffset < 0 || dataoffset > svlen) 1330 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("data offset outside of string"); 1331 croak ("dataoffset outside of data scalar");
1113 1332
1114 if (ix == REQ_WRITE) 1333 if (ix == EIO_WRITE)
1115 { 1334 {
1116 /* write: check length and adjust. */ 1335 /* write: check length and adjust. */
1117 if (length < 0 || length + dataoffset > svlen) 1336 if (!SvOK (length) || len + dataoffset > svlen)
1118 length = svlen - dataoffset; 1337 len = svlen - dataoffset;
1119 } 1338 }
1120 else 1339 else
1121 { 1340 {
1122 /* read: grow scalar as necessary */ 1341 /* read: check type and grow scalar as necessary */
1342 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1123 svptr = SvGROW (data, length + dataoffset); 1343 svptr = sv_grow (data, len + dataoffset + 1);
1344 else if (SvCUR (data) < len + dataoffset)
1345 croak ("length + dataoffset outside of scalar, and cannot grow");
1124 } 1346 }
1125
1126 if (length < 0)
1127 croak ("length must not be negative");
1128 1347
1129 { 1348 {
1130 dREQ; 1349 dREQ;
1131 1350
1132 req->type = ix; 1351 req->type = ix;
1133 req->fh = newSVsv (fh); 1352 req->sv1 = newSVsv (fh);
1134 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1353 req->int1 = fd;
1135 : IoOFP (sv_2io (fh))); 1354 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1136 req->offset = offset; 1355 req->size = len;
1137 req->length = length;
1138 req->data = SvREFCNT_inc (data); 1356 req->sv2 = SvREFCNT_inc (data);
1139 req->dataptr = (char *)svptr + dataoffset; 1357 req->ptr2 = (char *)svptr + dataoffset;
1358 req->stroffset = dataoffset;
1140 1359
1141 if (!SvREADONLY (data)) 1360 if (!SvREADONLY (data))
1142 { 1361 {
1143 SvREADONLY_on (data); 1362 SvREADONLY_on (data);
1144 req->data2ptr = (void *)data; 1363 req->flags |= FLAG_SV2_RO_OFF;
1145 } 1364 }
1146 1365
1147 REQ_SEND; 1366 REQ_SEND;
1148 } 1367 }
1149} 1368}
1150 1369
1151void 1370void
1152aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1371aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1153 SV * out_fh 1372 ALIAS:
1154 SV * in_fh 1373 aio_ioctl = EIO_IOCTL
1155 UV in_offset 1374 aio_fcntl = EIO_FCNTL
1156 UV length
1157 SV * callback
1158 PROTOTYPE: $$$$;$
1159 PPCODE: 1375 PPCODE:
1160{ 1376{
1161 dREQ; 1377 int fd = s_fileno_croak (fh, 0);
1378 char *svptr;
1162 1379
1163 req->type = REQ_SENDFILE; 1380 if (SvPOK (arg) || !SvNIOK (arg))
1164 req->fh = newSVsv (out_fh);
1165 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1166 req->fh2 = newSVsv (in_fh);
1167 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1168 req->offset = in_offset;
1169 req->length = length;
1170
1171 REQ_SEND;
1172}
1173
1174void
1175aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 IV length
1179 SV * callback
1180 PROTOTYPE: $$$;$
1181 PPCODE:
1182{
1183 dREQ;
1184
1185 req->type = REQ_READAHEAD;
1186 req->fh = newSVsv (fh);
1187 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1188 req->offset = offset;
1189 req->length = length;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_stat (fh_or_path,callback=&PL_sv_undef)
1196 SV * fh_or_path
1197 SV * callback
1198 ALIAS:
1199 aio_stat = REQ_STAT
1200 aio_lstat = REQ_LSTAT
1201 PPCODE:
1202{
1203 dREQ;
1204
1205 New (0, req->statdata, 1, Stat_t);
1206 if (!req->statdata)
1207 { 1381 {
1208 req_free (req); 1382 STRLEN svlen;
1209 croak ("out of memory during aio_req->statdata allocation"); 1383 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1210 } 1384#ifdef IOCPARM_LEN
1385 STRLEN need = IOCPARM_LEN (request);
1386#else
1387 STRLEN need = 256;
1388#endif
1211 1389
1212 if (SvPOK (fh_or_path)) 1390 if (svlen < need)
1213 { 1391 svptr = SvGROW (arg, need);
1214 req->type = ix;
1215 req->data = newSVsv (fh_or_path);
1216 req->dataptr = SvPVbyte_nolen (req->data);
1217 } 1392 }
1218 else 1393 else
1394 svptr = (char *)SvIV (arg);
1395
1219 { 1396 {
1397 dREQ;
1398
1220 req->type = REQ_FSTAT; 1399 req->type = ix;
1221 req->fh = newSVsv (fh_or_path); 1400 req->sv1 = newSVsv (fh);
1222 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1401 req->int1 = fd;
1402 req->int2 = (long)request;
1403 req->sv2 = SvREFCNT_inc (arg);
1404 req->ptr2 = svptr;
1405
1406 REQ_SEND;
1223 } 1407 }
1408}
1409
1410void
1411aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1412 ALIAS:
1413 aio_readlink = EIO_READLINK
1414 aio_realpath = EIO_REALPATH
1415 PPCODE:
1416{
1417 dREQ;
1418
1419 req->type = ix;
1420 req_set_path1 (req, pathname);
1224 1421
1225 REQ_SEND; 1422 REQ_SEND;
1226} 1423}
1227 1424
1228void 1425void
1229aio_unlink (pathname,callback=&PL_sv_undef) 1426aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1230 SV * pathname 1427 PPCODE:
1231 SV * callback 1428{
1429 int ifd = s_fileno_croak (in_fh , 0);
1430 int ofd = s_fileno_croak (out_fh, 1);
1431 dREQ;
1432
1433 req->type = EIO_SENDFILE;
1434 req->sv1 = newSVsv (out_fh);
1435 req->int1 = ofd;
1436 req->sv2 = newSVsv (in_fh);
1437 req->int2 = ifd;
1438 req->offs = in_offset;
1439 req->size = length;
1440
1441 REQ_SEND;
1442}
1443
1444void
1445aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1446 PPCODE:
1447{
1448 int fd = s_fileno_croak (fh, 0);
1449 dREQ;
1450
1451 req->type = EIO_READAHEAD;
1452 req->sv1 = newSVsv (fh);
1453 req->int1 = fd;
1454 req->offs = offset;
1455 req->size = length;
1456
1457 REQ_SEND;
1458}
1459
1460void
1461aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1232 ALIAS: 1462 ALIAS:
1463 aio_stat = EIO_STAT
1464 aio_lstat = EIO_LSTAT
1465 aio_statvfs = EIO_STATVFS
1466 PPCODE:
1467{
1468 dREQ;
1469
1470 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1471
1472 REQ_SEND;
1473}
1474
1475UV
1476major (UV dev)
1477 ALIAS:
1478 minor = 1
1479 CODE:
1480 RETVAL = ix ? minor (dev) : major (dev);
1481 OUTPUT:
1482 RETVAL
1483
1484UV
1485makedev (UV maj, UV min)
1486 CODE:
1487 RETVAL = makedev (maj, min);
1488 OUTPUT:
1489 RETVAL
1490
1491void
1492aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1493 PPCODE:
1494{
1495 dREQ;
1496
1497 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1498 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1499 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1511 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1512
1513 REQ_SEND;
1514}
1515
1516void
1517aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1518 PPCODE:
1519{
1520 dREQ;
1521
1522 req->int2 = mode;
1523 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1524
1525 REQ_SEND;
1526}
1527
1528void
1529aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1530 PPCODE:
1531{
1532 dREQ;
1533
1534 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1535 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1536 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1537
1538 REQ_SEND;
1539}
1540
1541void
1542aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->type = EIO_READDIR;
1548 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1549
1550 if (flags & EIO_READDIR_DENTS)
1551 req->int1 |= EIO_READDIR_CUSTOM2;
1552
1553 req_set_path1 (req, pathname);
1554
1555 REQ_SEND;
1556}
1557
1558void
1559aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = EIO_MKDIR;
1565 req->int2 = mode;
1566 req_set_path1 (req, pathname);
1567
1568 REQ_SEND;
1569}
1570
1571void
1572aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1573 ALIAS:
1233 aio_unlink = REQ_UNLINK 1574 aio_unlink = EIO_UNLINK
1234 aio_rmdir = REQ_RMDIR 1575 aio_rmdir = EIO_RMDIR
1235 aio_readdir = REQ_READDIR 1576 aio_readdir = EIO_READDIR
1236 PPCODE: 1577 PPCODE:
1237{ 1578{
1238 dREQ; 1579 dREQ;
1239 1580
1240 req->type = ix; 1581 req->type = ix;
1241 req->data = newSVsv (pathname); 1582 req_set_path1 (req, pathname);
1242 req->dataptr = SvPVbyte_nolen (req->data); 1583
1243
1244 REQ_SEND; 1584 REQ_SEND;
1245} 1585}
1246 1586
1247void 1587void
1248aio_link (oldpath,newpath,callback=&PL_sv_undef) 1588aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1249 SV * oldpath
1250 SV * newpath
1251 SV * callback
1252 ALIAS: 1589 ALIAS:
1253 aio_link = REQ_LINK 1590 aio_link = EIO_LINK
1254 aio_symlink = REQ_SYMLINK 1591 aio_symlink = EIO_SYMLINK
1255 aio_rename = REQ_RENAME 1592 aio_rename = EIO_RENAME
1256 PPCODE: 1593 PPCODE:
1257{ 1594{
1595 eio_wd wd2 = 0;
1258 dREQ; 1596 dREQ;
1259 1597
1260 req->type = ix; 1598 req->type = ix;
1261 req->fh = newSVsv (oldpath); 1599 req_set_path1 (req, oldpath);
1262 req->data2ptr = SvPVbyte_nolen (req->fh); 1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1263 req->data = newSVsv (newpath); 1601 req->int3 = (long)wd2;
1264 req->dataptr = SvPVbyte_nolen (req->data);
1265 1602
1266 REQ_SEND; 1603 REQ_SEND;
1267} 1604}
1268 1605
1269void 1606void
1270aio_busy (delay,callback=&PL_sv_undef) 1607aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1271 double delay
1272 SV * callback
1273 PPCODE: 1608 PPCODE:
1274{ 1609{
1610 eio_wd wd2 = 0;
1275 dREQ; 1611 dREQ;
1276 1612
1277 req->type = REQ_BUSY; 1613 req->type = EIO_RENAME;
1278 req->fd = delay < 0. ? 0 : delay; 1614 req_set_path1 (req, oldpath);
1279 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1280 1616 req->int2 = flags;
1617 req->int3 = (long)wd2;
1618
1281 REQ_SEND; 1619 REQ_SEND;
1282} 1620}
1283 1621
1284void 1622void
1285aio_group (callback=&PL_sv_undef) 1623aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1286 SV * callback 1624 PPCODE:
1287 PROTOTYPE: ;$ 1625{
1626 dREQ;
1627
1628 req->type = EIO_MKNOD;
1629 req->int2 = (mode_t)mode;
1630 req->offs = dev;
1631 req_set_path1 (req, pathname);
1632
1633 REQ_SEND;
1634}
1635
1636void
1637aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1638 ALIAS:
1639 aio_mtouch = EIO_MTOUCH
1640 aio_msync = EIO_MSYNC
1288 PPCODE: 1641 PPCODE:
1289{ 1642{
1643 STRLEN svlen;
1644 char *svptr = SvPVbyte (data, svlen);
1645 UV len = SvUV (length);
1646
1647 if (flags < 0)
1648 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1649
1650 if (offset < 0)
1651 offset += svlen;
1652
1653 if (offset < 0 || offset > svlen)
1654 croak ("offset outside of scalar");
1655
1656 if (!SvOK (length) || len + offset > svlen)
1657 len = svlen - offset;
1658
1659 {
1660 dREQ;
1661
1662 req->type = ix;
1663 req->sv2 = SvREFCNT_inc (data);
1664 req->ptr2 = (char *)svptr + offset;
1665 req->size = len;
1666 req->int1 = flags;
1667
1668 REQ_SEND;
1669 }
1670}
1671
1672void
1673aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1674 PPCODE:
1675{
1676 STRLEN svlen;
1677 char *svptr = SvPVbyte (data, svlen);
1678 UV len = SvUV (length);
1679
1680 if (offset < 0)
1681 offset += svlen;
1682
1683 if (offset < 0 || offset > svlen)
1684 croak ("offset outside of scalar");
1685
1686 if (!SvOK (length) || len + offset > svlen)
1687 len = svlen - offset;
1688
1689 {
1690 dREQ;
1691
1692 req->type = EIO_MLOCK;
1693 req->sv2 = SvREFCNT_inc (data);
1694 req->ptr2 = (char *)svptr + offset;
1695 req->size = len;
1696
1697 REQ_SEND;
1698 }
1699}
1700
1701void
1702aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1703 PPCODE:
1704{
1705 dREQ;
1706
1707 req->type = EIO_MLOCKALL;
1708 req->int1 = flags;
1709
1710 REQ_SEND;
1711}
1712
1713void
1714aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1715 PPCODE:
1716{
1717 int fd = s_fileno_croak (fh, 0);
1290 dREQ; 1718 dREQ;
1291 1719
1292 req->type = REQ_GROUP; 1720 req->type = EIO_CUSTOM;
1293 req_send (req); 1721 req->sv1 = newSVsv (fh);
1722 req->int1 = fd;
1294 1723
1295 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1724 req->feed = fiemap;
1296} 1725#if HAVE_FIEMAP
1726 /* keep our fingers crossed that the next two types are 64 bit */
1727 req->offs = start;
1728 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1729 req->int2 = flags;
1730 req->int3 = SvOK (count) ? SvIV (count) : -1;
1731#endif
1297 1732
1733 REQ_SEND;
1734}
1735
1298void 1736void
1299aio_nop (callback=&PL_sv_undef) 1737aio_busy (double delay, SV *callback = &PL_sv_undef)
1300 SV * callback
1301 PPCODE: 1738 PPCODE:
1302{ 1739{
1303 dREQ; 1740 dREQ;
1304 1741
1305 req->type = REQ_NOP; 1742 req->type = EIO_BUSY;
1743 req->nv1 = delay < 0. ? 0. : delay;
1306 1744
1307 REQ_SEND; 1745 REQ_SEND;
1308} 1746}
1309 1747
1310void 1748void
1311aioreq_pri (int pri = DEFAULT_PRI) 1749aio_group (SV *callback = &PL_sv_undef)
1312 CODE: 1750 PPCODE:
1751{
1752 dREQ;
1753
1754 req->type = EIO_GROUP;
1755
1756 PUTBACK;
1757 req_submit (req);
1758 SPAGAIN;
1759
1760 XPUSHs (req_sv (req, aio_grp_stash));
1761}
1762
1763void
1764aio_nop (SV *callback = &PL_sv_undef)
1765 ALIAS:
1766 aio_nop = EIO_NOP
1767 aio_sync = EIO_SYNC
1768 PPCODE:
1769{
1770 dREQ;
1771
1772 req->type = ix;
1773
1774 REQ_SEND;
1775}
1776
1777int
1778aioreq_pri (int pri = NO_INIT)
1779 CODE:
1780 RETVAL = next_pri;
1781 if (items > 0)
1782 {
1313 if (pri < PRI_MIN) pri = PRI_MIN; 1783 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1314 if (pri > PRI_MAX) pri = PRI_MAX; 1784 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1315 next_pri = pri + PRI_BIAS; 1785 next_pri = pri;
1786 }
1787 OUTPUT:
1788 RETVAL
1316 1789
1317void 1790void
1318aioreq_nice (int nice = 0) 1791aioreq_nice (int nice = 0)
1319 CODE: 1792 CODE:
1320 nice = next_pri - nice; 1793 nice = next_pri - nice;
1321 if (nice < PRI_MIN) nice = PRI_MIN; 1794 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1322 if (nice > PRI_MAX) nice = PRI_MAX; 1795 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1323 next_pri = nice + PRI_BIAS; 1796 next_pri = nice;
1324 1797
1325void 1798void
1326flush () 1799flush ()
1327 PROTOTYPE:
1328 CODE: 1800 CODE:
1329 while (nreqs) 1801 while (eio_nreqs ())
1330 { 1802 {
1331 poll_wait (); 1803 poll_wait ();
1332 poll_cb (); 1804 poll_cb ();
1333 } 1805 }
1334 1806
1335void 1807int
1336poll() 1808poll ()
1337 PROTOTYPE:
1338 CODE: 1809 CODE:
1339 if (nreqs)
1340 {
1341 poll_wait (); 1810 poll_wait ();
1342 poll_cb (); 1811 RETVAL = poll_cb ();
1343 }
1344
1345int
1346poll_fileno()
1347 PROTOTYPE:
1348 CODE:
1349 RETVAL = respipe [0];
1350 OUTPUT: 1812 OUTPUT:
1351 RETVAL 1813 RETVAL
1352 1814
1353int 1815int
1816poll_fileno ()
1817 CODE:
1818 RETVAL = s_epipe_fd (&respipe);
1819 OUTPUT:
1820 RETVAL
1821
1822int
1354poll_cb(...) 1823poll_cb (...)
1355 PROTOTYPE: 1824 PROTOTYPE:
1356 CODE: 1825 CODE:
1357 RETVAL = poll_cb (); 1826 RETVAL = poll_cb ();
1358 OUTPUT: 1827 OUTPUT:
1359 RETVAL 1828 RETVAL
1360 1829
1361void 1830void
1362poll_wait() 1831poll_wait ()
1363 PROTOTYPE:
1364 CODE: 1832 CODE:
1365 if (nreqs)
1366 poll_wait (); 1833 poll_wait ();
1367 1834
1368int 1835int
1369nreqs() 1836nreqs ()
1370 PROTOTYPE:
1371 CODE: 1837 CODE:
1372 RETVAL = nreqs; 1838 RETVAL = eio_nreqs ();
1373 OUTPUT: 1839 OUTPUT:
1374 RETVAL 1840 RETVAL
1375 1841
1842int
1843nready ()
1844 CODE:
1845 RETVAL = eio_nready ();
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850npending ()
1851 CODE:
1852 RETVAL = eio_npending ();
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857nthreads ()
1858 CODE:
1859 RETVAL = eio_nthreads ();
1860 OUTPUT:
1861 RETVAL
1862
1863int
1864fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1865 CODE:
1866 RETVAL = posix_fadvise (fh, offset, length, advice);
1867 OUTPUT:
1868 RETVAL
1869
1870IV
1871sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1872 CODE:
1873 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1874 OUTPUT:
1875 RETVAL
1876
1877void
1878mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1879 PPCODE:
1880 sv_unmagic (scalar, MMAP_MAGIC);
1881{
1882 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1884 if (addr == (void *)-1)
1885 XSRETURN_NO;
1886
1887 sv_force_normal (scalar);
1888
1889 /* we store the length in mg_obj, as namlen is I32 :/ */
1890 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1891 ->mg_obj = (SV *)length;
1892
1893 SvUPGRADE (scalar, SVt_PV); /* nop... */
1894
1895 if (!(prot & PROT_WRITE))
1896 SvREADONLY_on (scalar);
1897
1898 if (SvLEN (scalar))
1899 Safefree (SvPVX (scalar));
1900
1901 SvPVX (scalar) = (char *)addr;
1902 SvCUR_set (scalar, length);
1903 SvLEN_set (scalar, 0);
1904 SvPOK_only (scalar);
1905
1906 XSRETURN_YES;
1907}
1908
1909void
1910munmap (SV *scalar)
1911 CODE:
1912 sv_unmagic (scalar, MMAP_MAGIC);
1913
1914int
1915madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1916 ALIAS:
1917 mprotect = 1
1918 CODE:
1919{
1920 STRLEN svlen;
1921 void *addr = SvPVbyte (scalar, svlen);
1922 STRLEN len = SvUV (length);
1923
1924 if (offset < 0)
1925 offset += svlen;
1926
1927 if (offset < 0 || offset > svlen)
1928 croak ("offset outside of scalar");
1929
1930 if (!SvOK (length) || len + offset > svlen)
1931 len = svlen - offset;
1932
1933 addr = (void *)(((intptr_t)addr) + offset);
1934 eio_page_align (&addr, &len);
1935
1936 switch (ix)
1937 {
1938 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1939 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1940 }
1941}
1942 OUTPUT:
1943 RETVAL
1944
1945int
1946munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1947 CODE:
1948{
1949 STRLEN svlen;
1950 void *addr = SvPVbyte (scalar, svlen);
1951 size_t len = SvUV (length);
1952
1953 if (offset < 0)
1954 offset += svlen;
1955
1956 if (offset < 0 || offset > svlen)
1957 croak ("offset outside of scalar");
1958
1959 if (!SvOK (length) || len + offset > svlen)
1960 len = svlen - offset;
1961
1962 addr = (void *)(((intptr_t)addr) + offset);
1963 eio_page_align (&addr, &len);
1964#if _POSIX_MEMLOCK_RANGE
1965 RETVAL = munlock (addr, len);
1966#else
1967 RETVAL = EIO_ENOSYS ();
1968#endif
1969}
1970 OUTPUT:
1971 RETVAL
1972
1973int
1974munlockall ()
1975 CODE:
1976#if _POSIX_MEMLOCK
1977 munlockall ();
1978#else
1979 RETVAL = EIO_ENOSYS ();
1980#endif
1981 OUTPUT:
1982 RETVAL
1983
1984int
1985splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1986 CODE:
1987{
1988#if HAVE_LINUX_SPLICE
1989 loff_t off_in_, off_out_;
1990 RETVAL = splice (
1991 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1992 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1993 length, flags
1994 );
1995#else
1996 RETVAL = EIO_ENOSYS ();
1997#endif
1998}
1999 OUTPUT:
2000 RETVAL
2001
2002int
2003tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2004 CODE:
2005#if HAVE_LINUX_SPLICE
2006 RETVAL = tee (rfh, wfh, length, flags);
2007#else
2008 RETVAL = EIO_ENOSYS ();
2009#endif
2010 OUTPUT:
2011 RETVAL
2012
2013int
2014pipesize (aio_rfd rfh, int new_size = -1)
2015 PROTOTYPE: $;$
2016 CODE:
2017#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2018 if (new_size >= 0)
2019 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2020 else
2021 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2022#else
2023 errno = ENOSYS;
2024 RETVAL = -1;
2025#endif
2026 OUTPUT:
2027 RETVAL
2028
2029void
2030pipe2 (int flags = 0)
2031 PROTOTYPE: ;$
2032 PPCODE:
2033{
2034 int fd[2];
2035 int res;
2036
2037 if (flags)
2038#if HAVE_PIPE2
2039 res = pipe2 (fd, flags);
2040#else
2041 res = (errno = ENOSYS, -1);
2042#endif
2043 else
2044 res = pipe (fd);
2045
2046 if (!res)
2047 {
2048 EXTEND (SP, 2);
2049 PUSHs (newmortalFH (fd[0], O_RDONLY));
2050 PUSHs (newmortalFH (fd[1], O_WRONLY));
2051 }
2052}
2053
2054void _on_next_submit (SV *cb)
2055 CODE:
2056 SvREFCNT_dec (on_next_submit);
2057 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2058
1376PROTOTYPES: DISABLE 2059PROTOTYPES: DISABLE
2060
2061MODULE = IO::AIO PACKAGE = IO::AIO::WD
2062
2063BOOT:
2064{
2065 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2066 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2067}
2068
2069void
2070DESTROY (SV *self)
2071 CODE:
2072{
2073 aio_wd wd = SvAIO_WD (self);
2074#if HAVE_AT
2075 {
2076 SV *callback = &PL_sv_undef;
2077 dREQ; /* clobbers next_pri :/ */
2078 next_pri = req->pri; /* restore next_pri */
2079 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2080 req->type = EIO_WD_CLOSE;
2081 req->wd = wd;
2082 REQ_SEND;
2083 }
2084#else
2085 eio_wd_close_sync (wd);
2086#endif
2087}
1377 2088
1378MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2089MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1379 2090
1380void 2091void
1381cancel (aio_req_ornot req) 2092cancel (aio_req_ornot req)
1382 CODE: 2093 CODE:
1383 req_cancel (req); 2094 eio_cancel (req);
1384 2095
1385void 2096void
1386cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2097cb (aio_req_ornot req, SV *callback = NO_INIT)
1387 CODE: 2098 PPCODE:
2099{
2100 if (GIMME_V != G_VOID)
2101 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2102
2103 if (items > 1)
2104 {
2105 SV *cb_cv = get_cb (callback);
2106
1388 SvREFCNT_dec (req->callback); 2107 SvREFCNT_dec (req->callback);
1389 req->callback = newSVsv (callback); 2108 req->callback = SvREFCNT_inc (cb_cv);
2109 }
2110}
1390 2111
1391MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2112MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1392 2113
1393void 2114void
1394add (aio_req grp, ...) 2115add (aio_req grp, ...)
1395 PPCODE: 2116 PPCODE:
1396{ 2117{
1397 int i; 2118 int i;
1398 aio_req req;
1399 2119
1400 if (grp->fd == 2) 2120 if (grp->int1 == 2)
1401 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2121 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1402 2122
1403 for (i = 1; i < items; ++i ) 2123 for (i = 1; i < items; ++i )
1404 { 2124 {
2125 aio_req req;
2126
1405 if (GIMME_V != G_VOID) 2127 if (GIMME_V != G_VOID)
1406 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2128 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1407 2129
1408 req = SvAIO_REQ (ST (i)); 2130 req = SvAIO_REQ (ST (i));
1409 2131
1410 if (req) 2132 if (req)
1411 { 2133 eio_grp_add (grp, req);
1412 ++grp->length;
1413 req->grp = grp;
1414
1415 req->grp_prev = 0;
1416 req->grp_next = grp->grp_first;
1417
1418 if (grp->grp_first)
1419 grp->grp_first->grp_prev = req;
1420
1421 grp->grp_first = req;
1422 }
1423 } 2134 }
1424} 2135}
2136
2137void
2138cancel_subs (aio_req_ornot req)
2139 CODE:
2140 req_cancel_subs (req);
1425 2141
1426void 2142void
1427result (aio_req grp, ...) 2143result (aio_req grp, ...)
1428 CODE: 2144 CODE:
1429{ 2145{
1430 int i; 2146 int i;
2147 AV *av;
2148
2149 grp->errorno = errno;
2150
1431 AV *av = newAV (); 2151 av = newAV ();
2152 av_extend (av, items - 1);
1432 2153
1433 for (i = 1; i < items; ++i ) 2154 for (i = 1; i < items; ++i )
1434 av_push (av, newSVsv (ST (i))); 2155 av_push (av, newSVsv (ST (i)));
1435 2156
1436 SvREFCNT_dec (grp->data); 2157 SvREFCNT_dec (grp->sv1);
1437 grp->data = (SV *)av; 2158 grp->sv1 = (SV *)av;
1438} 2159}
2160
2161void
2162errno (aio_req grp, int errorno = errno)
2163 CODE:
2164 grp->errorno = errorno;
1439 2165
1440void 2166void
1441limit (aio_req grp, int limit) 2167limit (aio_req grp, int limit)
1442 CODE: 2168 CODE:
1443 grp->fd2 = limit; 2169 eio_grp_limit (grp, limit);
1444 aio_grp_feed (grp);
1445 2170
1446void 2171void
1447feed (aio_req grp, SV *callback=&PL_sv_undef) 2172feed (aio_req grp, SV *callback = &PL_sv_undef)
1448 CODE: 2173 CODE:
1449{ 2174{
1450 SvREFCNT_dec (grp->fh2); 2175 SvREFCNT_dec (grp->sv2);
1451 grp->fh2 = newSVsv (callback); 2176 grp->sv2 = newSVsv (callback);
2177 grp->feed = aio_grp_feed;
1452 2178
1453 if (grp->fd2 <= 0) 2179 if (grp->int2 <= 0)
1454 grp->fd2 = 2; 2180 grp->int2 = 2;
1455 2181
1456 aio_grp_feed (grp); 2182 eio_grp_limit (grp, grp->int2);
1457} 2183}
1458 2184

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