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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.67 by root, Tue Oct 24 03:17:39 2006 UTC vs.
Revision 1.249 by root, Fri Jun 23 23:50:25 2017 UTC

1#if __linux 1#include "libeio/xthread.h"
2# define _GNU_SOURCE
3#endif
4
5#define _REENTRANT 1
6 2
7#include <errno.h> 3#include <errno.h>
8 4
9#include "EXTERN.h" 5#include "EXTERN.h"
10#include "perl.h" 6#include "perl.h"
11#include "XSUB.h" 7#include "XSUB.h"
12 8
13#include "autoconf/config.h" 9#include "schmorp.h"
14
15#include <pthread.h>
16 10
17#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
18#include <errno.h> 13#include <errno.h>
19#include <sys/time.h>
20#include <sys/select.h>
21#include <sys/types.h> 14#include <sys/types.h>
22#include <sys/stat.h> 15#include <sys/stat.h>
23#include <limits.h> 16#include <limits.h>
24#include <unistd.h>
25#include <fcntl.h> 17#include <fcntl.h>
26#include <signal.h>
27#include <sched.h> 18#include <sched.h>
28 19
29#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
30# if __linux
31# include <sys/sendfile.h>
32# elif __freebsd
33# include <sys/socket.h>
34# include <sys/uio.h> 21# include <sys/mman.h>
35# 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
36# include <sys/socket.h> 86 #include <sys/time.h>
37# elif __solaris /* not yet */
38# 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
39# else 145# else
40# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 147# endif
42#endif 148#endif
43 149
44/* used for struct dirent, AIX doesn't provide it */ 150/* defines all sorts of constants to 0 unless they are already defined */
45#ifndef NAME_MAX 151/* also provides const_iv_ and const_niv_ macros for them */
46# define NAME_MAX 4096 152#include "def0.h"
47#endif
48 153
49#if __ia64 154#ifndef makedev
50# define STACKSIZE 65536 155# define makedev(maj,min) (((maj) << 8) | (min))
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
52# define STACKSIZE PTHREAD_STACK_MIN
53#else
54# define STACKSIZE 16384
55#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
56 163
57/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
58#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
59 167
60#define dBUF \ 168/*****************************************************************************/
61 char *aio_buf = malloc (AIO_BUFSIZE); \ 169
62 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)
63 return -1; 191 return;
64 192
65#define fBUF free (aio_buf) 193 req->ptr1 = fiemap;
66 194
67enum { 195 fiemap->fm_start = req->offs;
68 REQ_QUIT, 196 fiemap->fm_length = req->size;
69 REQ_OPEN, REQ_CLOSE, 197 fiemap->fm_flags = req->int2;
70 REQ_READ, REQ_WRITE, REQ_READAHEAD, 198 fiemap->fm_extent_count = count;
71 REQ_SENDFILE,
72 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
73 REQ_FSYNC, REQ_FDATASYNC,
74 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
75 REQ_READDIR,
76 REQ_LINK, REQ_SYMLINK,
77 REQ_GROUP, REQ_NOP,
78 REQ_SLEEP,
79};
80 199
81#define AIO_REQ_KLASS "IO::AIO::REQ" 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
82#define AIO_GRP_KLASS "IO::AIO::GRP" 201 return;
83 202
84typedef struct aio_cb 203 if (req->int3 >= 0 /* not autosizing */
85{ 204 || !fiemap->fm_mapped_extents /* no more extents */
86 struct aio_cb *volatile next; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
206 goto done;
87 207
88 SV *data, *callback; 208 /* else we have to loop -
89 SV *fh, *fh2; 209 * it would be tempting (actually I tried that first) to just query the
90 void *dataptr, *data2ptr; 210 * number of extents needed, but linux often feels like not returning all
91 Stat_t *statdata; 211 * extents, without telling us it left any out. this complicates
92 off_t offset; 212 * this quite a bit.
93 size_t length;
94 ssize_t result;
95
96 STRLEN dataoffset;
97 int type;
98 int fd, fd2;
99 int errorno;
100 mode_t mode; /* open */
101
102 unsigned char flags;
103 unsigned char pri;
104
105 SV *self; /* the perl counterpart of this request, if any */
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
107} aio_cb;
108
109enum {
110 FLAG_CANCELLED = 0x01,
111};
112
113typedef aio_cb *aio_req;
114typedef aio_cb *aio_req_ornot;
115
116enum {
117 PRI_MIN = -4,
118 PRI_MAX = 4,
119
120 DEFAULT_PRI = 0,
121 PRI_BIAS = -PRI_MIN,
122 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
123};
124
125static int next_pri = DEFAULT_PRI + PRI_BIAS;
126
127static int started, wanted;
128static volatile int nreqs;
129static int max_outstanding = 1<<30;
130static int respipe [2];
131
132#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
133# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
134#else
135# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
136#endif
137
138static pthread_mutex_t reslock = AIO_MUTEX_INIT;
139static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
140static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
141
142/*
143 * a somewhat faster data structure might be nice, but
144 * with 8 priorities this actually needs <20 insns
145 * per shift, the most expensive operation.
146 */ 213 */
147typedef struct {
148 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
149 int size;
150} reqq;
151 214
152static reqq req_queue; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
153static reqq res_queue;
154 216
155int reqq_push (reqq *q, aio_req req) 217 for (;;)
156{
157 int pri = req->pri;
158 req->next = 0;
159
160 if (q->qe[pri])
161 { 218 {
162 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) */
163 q->qe[pri] = req; 220 char scratch[3072];
164 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
165 else
166 q->qe[pri] = q->qs[pri] = req;
167 222
168 return q->size++; 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
169} 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);
170 228
171aio_req reqq_shift (reqq *q) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
172{
173 int pri;
174
175 if (!q->size)
176 return 0; 230 return;
177 231
178 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
179 234
180 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
181 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
182 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
183
184 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
185 { 244 {
186 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
187 q->qe[pri] = 0;
188 246
189 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
190 } 255 }
191 } 256 }
192 257
193 abort (); 258done:
194} 259 req->result = 0;
195 260
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);
196static void req_invoke (aio_req req); 283static void req_cancel (aio_req req);
197static 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}
198 298
199/* must be called at most once */ 299/* must be called at most once */
200static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
201{ 302{
202 if (!req->self) 303 if (!req->self)
203 { 304 {
204 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
205 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
206 } 307 }
207 308
208 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
209} 310}
210 311
211static 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)
212{ 320{
213 MAGIC *mg; 321 MAGIC *mg;
214 322
215 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")))
216 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
217 329
218 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
219 331
220 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
221} 333}
222 334
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
223static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
224{ 373{
225 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
226 { 375 {
227 int old_len = grp->length;
228
229 if (grp->fh2 && SvOK (grp->fh2))
230 {
231 dSP; 376 dSP;
232 377
233 ENTER; 378 ENTER;
234 SAVETMPS; 379 SAVETMPS;
235 PUSHMARK (SP); 380 PUSHMARK (SP);
236 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
237 PUTBACK; 382 PUTBACK;
238 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
239 SPAGAIN; 384 SPAGAIN;
240 FREETMPS; 385 FREETMPS;
241 LEAVE; 386 LEAVE;
242 }
243
244 /* stop if no progress has been made */
245 if (old_len == grp->length)
246 {
247 SvREFCNT_dec (grp->fh2);
248 grp->fh2 = 0;
249 break;
250 }
251 } 387 }
252} 388}
253 389
254static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
255{ 392{
256 --grp->length; 393 eio_submit (req);
257 394
258 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
259 aio_grp_feed (grp);
260
261 /* finish, if done */
262 if (!grp->length && grp->fd)
263 { 396 {
264 req_invoke (grp); 397 dSP;
265 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);
266 } 405 }
267} 406}
268 407
269static void poll_wait () 408static int
409req_invoke (eio_req *req)
270{ 410{
271 fd_set rfd; 411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
272 413
273 while (nreqs) 414 if (!EIO_CANCELLED (req) && req->callback)
274 { 415 {
275 int size;
276#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
277 pthread_mutex_lock (&reslock);
278#endif
279 size = res_queue.size;
280#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
281 pthread_mutex_unlock (&reslock);
282#endif
283
284 if (size)
285 return;
286
287 FD_ZERO(&rfd);
288 FD_SET(respipe [0], &rfd);
289
290 select (respipe [0] + 1, &rfd, 0, 0, 0);
291 }
292}
293
294static void req_invoke (aio_req req)
295{
296 dSP; 416 dSP;
297 417 static SV *sv_result_cache; /* caches the result integer SV */
298 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 418 SV *sv_result;
299 {
300 errno = req->errorno;
301 419
302 ENTER; 420 ENTER;
303 SAVETMPS; 421 SAVETMPS;
304 PUSHMARK (SP); 422 PUSHMARK (SP);
305 EXTEND (SP, 1); 423 EXTEND (SP, 1);
306 424
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
307 switch (req->type) 438 switch (req->type)
308 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
309 case REQ_READDIR: 444 case EIO_READDIR:
310 { 445 {
311 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
312 447
313 if (req->result >= 0) 448 if (req->result >= 0)
314 { 449 {
450 int i;
315 char *buf = req->data2ptr; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
316 AV *av = newAV (); 453 AV *av = newAV ();
317 454
318 while (req->result) 455 av_extend (av, req->result - 1);
456
457 for (i = 0; i < req->result; ++i)
319 { 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 {
320 SV *sv = newSVpv (buf, 0); 489 SV *name = newSVpv (names, 0);
321
322 av_push (av, sv); 490 av_store (av, i, name);
323 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
324 req->result--; 492 }
325 } 493 }
326 494
327 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
328 } 496 }
329 497
330 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))));
331 } 502 }
332 break; 503 break;
333 504
334 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:
335 { 511 {
336 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
337 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));
338 524
339 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
340 PUTBACK;
341 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
342 SPAGAIN;
343 526
344 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
345 540
346 PUSHMARK (SP); 541 PUSHs (rv);
347 XPUSHs (sv_2mortal (fh));
348 } 542 }
543
349 break; 544 break;
350 545
351 case REQ_GROUP: 546 case EIO_GROUP:
352 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
353 548
354 if (req->data) 549 if (req->sv1)
355 { 550 {
356 int i; 551 int i;
357 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
358 553
359 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
360 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
361 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
362 } 557 }
363 break; 558 break;
364 559
365 case REQ_NOP: 560 case EIO_NOP:
366 case REQ_SLEEP: 561 case EIO_BUSY:
367 break; 562 break;
368 563
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
369 default: 641 default:
370 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
371 break; 643 break;
372 } 644 }
373 645
646 errno = req->errorno;
374 647
375 PUTBACK; 648 PUTBACK;
376 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
377 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;
378 656
379 FREETMPS; 657 FREETMPS;
380 LEAVE; 658 LEAVE;
659
660 PUTBACK;
381 } 661 }
382 662
383 if (req->grp) 663 return !!SvTRUE (ERRSV);
384 {
385 aio_req grp = req->grp;
386
387 /* unlink request */
388 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
389 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
390
391 if (grp->grp_first == req)
392 grp->grp_first = req->grp_next;
393
394 aio_grp_dec (grp);
395 }
396
397 if (SvTRUE (ERRSV))
398 {
399 req_free (req);
400 croak (0);
401 }
402} 664}
403 665
404static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
405{ 668{
406 if (req->self) 669 if (req->self)
407 { 670 {
408 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
409 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
410 } 673 }
411 674
412 SvREFCNT_dec (req->data);
413 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
414 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
415 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
416 Safefree (req->statdata);
417 680
418 if (req->type == REQ_READDIR && req->result >= 0)
419 free (req->data2ptr);
420
421 Safefree (req); 681 free (req);
422} 682}
423 683
424static void req_cancel (aio_req req) 684static void
685req_cancel_subs (aio_req grp)
425{ 686{
426 req->flags |= FLAG_CANCELLED;
427
428 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 ())
429 { 707 {
430 aio_req sub; 708 int size;
431 709
432 for (sub = req->grp_first; sub; sub = sub->grp_next) 710 X_LOCK (EIO_POOL->reslock);
433 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);
434 } 720 }
435} 721}
436 722
437static int poll_cb () 723static int
724poll_cb (void)
438{ 725{
439 dSP;
440 int count = 0;
441 int do_croak = 0;
442 aio_req req;
443
444 for (;;) 726 for (;;)
445 { 727 {
446 pthread_mutex_lock (&reslock); 728 int res = eio_poll ();
447 req = reqq_shift (&res_queue);
448 729
449 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)
450 { 836 {
451 if (!res_queue.size) 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
839
840 if (SvOK (wdob))
452 { 841 {
453 /* read any signals sent by the worker threads */ 842 *wd = SvAIO_WD (wdob);
454 char buf [32]; 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
455 while (read (respipe [0], buf, 32) == 32)
456 ;
457 } 844 }
845 else
846 *wd = EIO_INVALID_WD;
458 } 847 }
459 848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
460 pthread_mutex_unlock (&reslock);
461
462 if (!req)
463 break;
464
465 --nreqs;
466
467 if (req->type == REQ_QUIT)
468 started--;
469 else if (req->type == REQ_GROUP && req->length)
470 { 849 {
471 req->fd = 1; /* mark request as delayed */ 850 *wd = (aio_wd)(long)SvIVX (rv);
472 continue; 851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
473 } 854 }
474 else 855 else
475 { 856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
476 if (req->type == REQ_READ)
477 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
478
479 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
480 SvREADONLY_off (req->data);
481
482 if (req->statdata)
483 {
484 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
485 PL_laststatval = req->result;
486 PL_statcache = *(req->statdata);
487 }
488
489 req_invoke (req);
490
491 count++;
492 }
493
494 req_free (req);
495 } 857 }
496 858
497 return count; 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
498} 861}
499 862
500static void *aio_proc(void *arg); 863static void ecb_noinline
501 864req_set_path1 (aio_req req, SV *path)
502static void start_thread (void)
503{ 865{
504 sigset_t fullsigset, oldsigset; 866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
505 pthread_t tid;
506 pthread_attr_t attr;
507
508 pthread_attr_init (&attr);
509 pthread_attr_setstacksize (&attr, STACKSIZE);
510 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
511
512 sigfillset (&fullsigset);
513 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
514
515 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
516 started++;
517
518 sigprocmask (SIG_SETMASK, &oldsigset, 0);
519} 867}
520 868
521static 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)
522{ 871{
523 while (started < wanted && nreqs >= started) 872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
524 start_thread ();
525 873
526 ++nreqs; 874 switch (SvTYPE (rv))
527
528 pthread_mutex_lock (&reqlock);
529 reqq_push (&req_queue, req);
530 pthread_cond_signal (&reqwait);
531 pthread_mutex_unlock (&reqlock);
532
533 if (nreqs > max_outstanding)
534 for (;;)
535 {
536 poll_cb ();
537
538 if (nreqs <= max_outstanding)
539 break;
540
541 poll_wait ();
542 }
543}
544
545static void end_thread (void)
546{
547 aio_req req;
548
549 Newz (0, req, 1, aio_cb);
550
551 req->type = REQ_QUIT;
552 req->pri = PRI_MAX + PRI_BIAS;
553
554 req_send (req);
555}
556
557static void min_parallel (int nthreads)
558{
559 if (wanted < nthreads)
560 wanted = nthreads;
561}
562
563static void max_parallel (int nthreads)
564{
565 int cur = started;
566
567 if (wanted > nthreads)
568 wanted = nthreads;
569
570 while (cur > wanted)
571 { 875 {
572 end_thread (); 876 case SVt_PVIO:
573 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;
574 } 888 }
575
576 while (started > wanted)
577 {
578 poll_wait ();
579 poll_cb ();
580 }
581} 889}
582 890
583static void create_pipe () 891XS(boot_IO__AIO) ecb_cold;
584{
585 if (pipe (respipe))
586 croak ("unable to initialize result pipe");
587 892
588 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 893MODULE = IO::AIO PACKAGE = IO::AIO
589 croak ("cannot set result pipe to nonblocking mode");
590 894
591 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 895PROTOTYPES: ENABLE
592 croak ("cannot set result pipe to nonblocking mode");
593}
594 896
595/*****************************************************************************/ 897BOOT:
596/* work around various missing functions */
597
598#if !HAVE_PREADWRITE
599# define pread aio_pread
600# define pwrite aio_pwrite
601
602/*
603 * make our pread/pwrite safe against themselves, but not against
604 * normal read/write by using a mutex. slows down execution a lot,
605 * but that's your problem, not mine.
606 */
607static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
608
609static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
610{ 898{
611 ssize_t res; 899 static const struct {
612 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 },
613 906
614 pthread_mutex_lock (&preadwritelock); 907 /* you have to re-run ./gendef0 after adding/removing any constants here */
615 ooffset = lseek (fd, 0, SEEK_CUR); 908 /* the first block can be undef if missing */
616 lseek (fd, offset, SEEK_SET); 909 const_iv (ENOSYS)
617 res = read (fd, buf, count); 910 const_iv (EXDEV)
618 lseek (fd, ooffset, SEEK_SET); 911 const_iv (EBADR)
619 pthread_mutex_unlock (&preadwritelock);
620 912
621 return res; 913 /* for lseek */
622} 914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
623 916
624static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
625{ 918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
626 ssize_t res; 919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
627 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)
628 923
629 pthread_mutex_lock (&preadwritelock); 924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
630 ooffset = lseek (fd, 0, SEEK_CUR); 925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
631 lseek (fd, offset, SEEK_SET); 926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
632 res = write (fd, buf, count); 927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
633 lseek (fd, offset, SEEK_SET); 928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
634 pthread_mutex_unlock (&preadwritelock);
635 929
636 return res; 930 /* the second block will be 0 when missing */
637} 931 const_iv (O_RDONLY)
638#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)
639 938
640#if !HAVE_FDATASYNC 939 const_iv (O_ASYNC)
641# define fdatasync fsync 940 const_iv (O_DIRECT)
642#endif 941 const_iv (O_NOATIME)
643 942
644#if !HAVE_READAHEAD 943 const_iv (O_CLOEXEC)
645# 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)
646 956
647static ssize_t readahead (int fd, off_t offset, size_t count) 957 const_iv (S_IFIFO)
648{ 958 const_iv (S_IFCHR)
649 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)
650 966
651 while (count > 0) 967 const_iv (ST_RDONLY)
652 { 968 const_iv (ST_NOSUID)
653 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)
654 979
655 pread (fd, aio_buf, len, offset); 980 const_iv (PROT_NONE)
656 offset += len; 981 const_iv (PROT_EXEC)
657 count -= len; 982 const_iv (PROT_READ)
658 } 983 const_iv (PROT_WRITE)
659 984
660 fBUF; 985 const_iv (MAP_PRIVATE)
986 const_iv (MAP_SHARED)
987 const_iv (MAP_FIXED)
988 const_iv (MAP_ANONYMOUS)
661 989
662 errno = 0; 990 /* linuxish */
663} 991 const_iv (MAP_LOCKED)
664#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)
665 999
666#if !HAVE_READDIR_R 1000 const_iv (F_DUPFD_CLOEXEC)
667# define readdir_r aio_readdir_r
668 1001
669static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1002 const_iv (F_OFD_GETLK)
670 1003 const_iv (F_OFD_SETLK)
671static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1004 const_iv (F_OFD_GETLKW)
672{
673 struct dirent *e;
674 int errorno;
675 1005
676 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)
677 1012
678 e = readdir (dirp); 1013 const_iv (FS_IOC_GETFLAGS)
679 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)
680 1023
681 if (e) 1024 const_iv (FS_KEY_DESCRIPTOR_SIZE)
682 {
683 *res = ent;
684 strcpy (ent->d_name, e->d_name);
685 }
686 else
687 *res = 0;
688 1025
689 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)
690 1045
691 errno = errorno; 1046 const_iv (FS_XFLAG_REALTIME)
692 return e ? 0 : -1; 1047 const_iv (FS_XFLAG_PREALLOC)
693} 1048 const_iv (FS_XFLAG_IMMUTABLE)
694#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)
695 1062
696/* sendfile always needs emulation */ 1063 const_iv (FIEMAP_FLAG_SYNC)
697static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1064 const_iv (FIEMAP_FLAG_XATTR)
698{ 1065 const_iv (FIEMAP_FLAGS_COMPAT)
699 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)
700 1077
701 if (!count) 1078 const_iv (SPLICE_F_MOVE)
702 return 0; 1079 const_iv (SPLICE_F_NONBLOCK)
1080 const_iv (SPLICE_F_MORE)
1081 const_iv (SPLICE_F_GIFT)
703 1082
704#if HAVE_SENDFILE 1083 /* these are libeio constants, and are independent of gendef0 */
705# if __linux 1084 const_eio (SEEK_SET)
706 res = sendfile (ofd, ifd, &offset, count); 1085 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END)
707 1087
708# elif __freebsd 1088 const_eio (MCL_FUTURE)
709 /* 1089 const_eio (MCL_CURRENT)
710 * Of course, the freebsd sendfile is a dire hack with no thoughts
711 * wasted on making it similar to other I/O functions.
712 */
713 {
714 off_t sbytes;
715 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
716 1090
717 if (res < 0 && sbytes) 1091 const_eio (MS_ASYNC)
718 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1092 const_eio (MS_INVALIDATE)
719 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_INSERT_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)
720 } 1126 };
721 1127
722# elif __hpux 1128 aio_stash = gv_stashpv ("IO::AIO" , 1);
723 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);
724 1132
725# elif __solaris 1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
726 { 1134 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
727 struct sendfilevec vec;
728 size_t sbytes;
729 1135
730 vec.sfv_fd = ifd; 1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
731 vec.sfv_flag = 0;
732 vec.sfv_off = offset;
733 vec.sfv_len = count;
734 1137
735 res = sendfilev (ofd, &vec, 1, &sbytes); 1138 reinit ();
1139}
736 1140
737 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;
738 res = sbytes; 1242 req->size = nbytes;
739 } 1243 req->int2 = flags;
740 1244
741# 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
742#else 1280#else
743 res = -1; 1281 pipe (pipefd) < 0
744 errno = ENOSYS; 1282 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
745#endif 1283#endif
746 1284 || close (pipefd [1]) < 0
747 if (res < 0
748 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
749#if __solaris
750 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
751#endif
752 )
753 )
754 {
755 /* emulate sendfile. this is a major pain in the ass */
756 dBUF;
757
758 res = 0;
759
760 while (count)
761 {
762 ssize_t cnt;
763
764 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
765
766 if (cnt <= 0)
767 { 1285 )
768 if (cnt && !res) res = -1; 1286 abort (); /*D*/
769 break;
770 }
771 1287
772 cnt = write (ofd, aio_buf, cnt); 1288 close_fd = pipefd [0];
773
774 if (cnt <= 0)
775 {
776 if (cnt && !res) res = -1;
777 break;
778 }
779
780 offset += cnt;
781 res += cnt;
782 count -= cnt;
783 }
784
785 fBUF;
786 }
787
788 return res;
789}
790
791/* read a full directory */
792static int scandir_ (const char *path, void **namesp)
793{
794 DIR *dirp;
795 union
796 {
797 struct dirent d;
798 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
799 } *u;
800 struct dirent *entp;
801 char *name, *names;
802 int memlen = 4096;
803 int memofs = 0;
804 int res = 0;
805 int errorno;
806
807 dirp = opendir (path);
808 if (!dirp)
809 return -1;
810
811 u = malloc (sizeof (*u));
812 names = malloc (memlen);
813
814 if (u && names)
815 for (;;)
816 {
817 errno = 0;
818 readdir_r (dirp, &u->d, &entp);
819
820 if (!entp)
821 break;
822
823 name = entp->d_name;
824
825 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
826 {
827 int len = strlen (name) + 1;
828
829 res++;
830
831 while (memofs + len > memlen)
832 {
833 memlen *= 2;
834 names = realloc (names, memlen);
835 if (!names)
836 break;
837 }
838
839 memcpy (names + memofs, name, len);
840 memofs += len;
841 } 1289 }
842 }
843 1290
844 errorno = errno; 1291 req->type = EIO_DUP2;
845 free (u); 1292 req->int1 = close_fd;
846 closedir (dirp); 1293 req->sv2 = newSVsv (fh);
1294 req->int2 = fd;
847 1295
848 if (errorno) 1296 REQ_SEND;
849 {
850 free (names);
851 errno = errorno;
852 res = -1;
853 }
854
855 *namesp = (void *)names;
856 return res;
857} 1297}
858 1298
859/*****************************************************************************/
860
861static void *aio_proc (void *thr_arg)
862{
863 aio_req req;
864 int type;
865
866 do
867 {
868 pthread_mutex_lock (&reqlock);
869
870 for (;;)
871 {
872 req = reqq_shift (&req_queue);
873
874 if (req)
875 break;
876
877 pthread_cond_wait (&reqwait, &reqlock);
878 }
879
880 pthread_mutex_unlock (&reqlock);
881
882 errno = 0; /* strictly unnecessary */
883 type = req->type; /* remember type for QUIT check */
884
885 if (!(req->flags & FLAG_CANCELLED))
886 switch (type)
887 {
888 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
889 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
890
891 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
892 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
893
894 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
895 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
896 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
897
898 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
899 case REQ_CLOSE: req->result = close (req->fd); break;
900 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
901 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
902 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
903 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
904 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
905
906 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
907 case REQ_FSYNC: req->result = fsync (req->fd); break;
908 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
909
910 case REQ_SLEEP:
911 {
912 struct timeval tv;
913
914 tv.tv_sec = req->fd;
915 tv.tv_usec = req->fd2;
916
917 req->result = select (0, 0, 0, 0, &tv);
918 }
919
920 case REQ_GROUP:
921 case REQ_NOP:
922 case REQ_QUIT:
923 break;
924
925 default:
926 req->result = ENOSYS;
927 break;
928 }
929
930 req->errorno = errno;
931
932 pthread_mutex_lock (&reslock);
933
934 if (!reqq_push (&res_queue, req))
935 /* write a dummy byte to the pipe so fh becomes ready */
936 write (respipe [1], &respipe, 1);
937
938 pthread_mutex_unlock (&reslock);
939 }
940 while (type != REQ_QUIT);
941
942 return 0;
943}
944
945/*****************************************************************************/
946
947static void atfork_prepare (void)
948{
949 pthread_mutex_lock (&reqlock);
950 pthread_mutex_lock (&reslock);
951#if !HAVE_PREADWRITE
952 pthread_mutex_lock (&preadwritelock);
953#endif
954#if !HAVE_READDIR_R
955 pthread_mutex_lock (&readdirlock);
956#endif
957}
958
959static void atfork_parent (void)
960{
961#if !HAVE_READDIR_R
962 pthread_mutex_unlock (&readdirlock);
963#endif
964#if !HAVE_PREADWRITE
965 pthread_mutex_unlock (&preadwritelock);
966#endif
967 pthread_mutex_unlock (&reslock);
968 pthread_mutex_unlock (&reqlock);
969}
970
971static void atfork_child (void)
972{
973 aio_req prv;
974
975 started = 0;
976
977 while (prv = reqq_shift (&req_queue))
978 req_free (prv);
979
980 while (prv = reqq_shift (&res_queue))
981 req_free (prv);
982
983 close (respipe [0]);
984 close (respipe [1]);
985 create_pipe ();
986
987 atfork_parent ();
988}
989
990#define dREQ \
991 aio_req req; \
992 int req_pri = next_pri; \
993 next_pri = DEFAULT_PRI + PRI_BIAS; \
994 \
995 if (SvOK (callback) && !SvROK (callback)) \
996 croak ("callback must be undef or of reference type"); \
997 \
998 Newz (0, req, 1, aio_cb); \
999 if (!req) \
1000 croak ("out of memory during aio_req allocation"); \
1001 \
1002 req->callback = newSVsv (callback); \
1003 req->pri = req_pri
1004
1005#define REQ_SEND \
1006 req_send (req); \
1007 \
1008 if (GIMME_V != G_VOID) \
1009 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1010
1011MODULE = IO::AIO PACKAGE = IO::AIO
1012
1013PROTOTYPES: ENABLE
1014
1015BOOT:
1016{
1017 HV *stash = gv_stashpv ("IO::AIO", 1);
1018 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1019 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1020 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1021
1022 create_pipe ();
1023 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1024}
1025
1026void 1299void
1027min_parallel (nthreads) 1300aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1028 int nthreads
1029 PROTOTYPE: $
1030
1031void
1032max_parallel (nthreads)
1033 int nthreads
1034 PROTOTYPE: $
1035
1036int
1037max_outstanding (nreqs)
1038 int nreqs
1039 PROTOTYPE: $
1040 CODE: 1301 PPCODE:
1041 RETVAL = max_outstanding;
1042 max_outstanding = nreqs;
1043
1044void
1045aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1046 SV * pathname
1047 int flags
1048 int mode
1049 SV * callback
1050 PROTOTYPE: $$$;$
1051 PPCODE:
1052{ 1302{
1303 int fd = s_fileno_croak (fh, 0);
1053 dREQ; 1304 dREQ;
1054 1305
1055 req->type = REQ_OPEN; 1306 req->type = EIO_SEEK;
1056 req->data = newSVsv (pathname); 1307 req->sv1 = newSVsv (fh);
1057 req->dataptr = SvPVbyte_nolen (req->data); 1308 req->int1 = fd;
1058 req->fd = flags; 1309 req->offs = SvVAL64 (offset);
1059 req->mode = mode; 1310 req->int2 = whence;
1060 1311
1061 REQ_SEND; 1312 REQ_SEND;
1062} 1313}
1063 1314
1064void 1315void
1065aio_close (fh,callback=&PL_sv_undef) 1316aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1066 SV * fh
1067 SV * callback
1068 PROTOTYPE: $;$
1069 ALIAS: 1317 ALIAS:
1070 aio_close = REQ_CLOSE
1071 aio_fsync = REQ_FSYNC
1072 aio_fdatasync = REQ_FDATASYNC
1073 PPCODE:
1074{
1075 dREQ;
1076
1077 req->type = ix;
1078 req->fh = newSVsv (fh);
1079 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1080
1081 REQ_SEND (req);
1082}
1083
1084void
1085aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1086 SV * fh
1087 UV offset
1088 UV length
1089 SV * data
1090 UV dataoffset
1091 SV * callback
1092 ALIAS:
1093 aio_read = REQ_READ 1318 aio_read = EIO_READ
1094 aio_write = REQ_WRITE 1319 aio_write = EIO_WRITE
1095 PROTOTYPE: $$$$$;$
1096 PPCODE: 1320 PPCODE:
1097{ 1321{
1098 aio_req req;
1099 STRLEN svlen; 1322 STRLEN svlen;
1323 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1100 char *svptr = SvPVbyte (data, svlen); 1324 char *svptr = SvPVbyte (data, svlen);
1101 1325 UV len = SvUV (length);
1102 SvUPGRADE (data, SVt_PV);
1103 SvPOK_on (data);
1104 1326
1105 if (dataoffset < 0) 1327 if (dataoffset < 0)
1106 dataoffset += svlen; 1328 dataoffset += svlen;
1107 1329
1108 if (dataoffset < 0 || dataoffset > svlen) 1330 if (dataoffset < 0 || dataoffset > svlen)
1109 croak ("data offset outside of string"); 1331 croak ("dataoffset outside of data scalar");
1110 1332
1111 if (ix == REQ_WRITE) 1333 if (ix == EIO_WRITE)
1112 { 1334 {
1113 /* write: check length and adjust. */ 1335 /* write: check length and adjust. */
1114 if (length < 0 || length + dataoffset > svlen) 1336 if (!SvOK (length) || len + dataoffset > svlen)
1115 length = svlen - dataoffset; 1337 len = svlen - dataoffset;
1116 } 1338 }
1117 else 1339 else
1118 { 1340 {
1119 /* read: grow scalar as necessary */ 1341 /* read: check type and grow scalar as necessary */
1342 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1120 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");
1121 } 1346 }
1122
1123 if (length < 0)
1124 croak ("length must not be negative");
1125 1347
1126 { 1348 {
1127 dREQ; 1349 dREQ;
1128 1350
1129 req->type = ix; 1351 req->type = ix;
1130 req->fh = newSVsv (fh); 1352 req->sv1 = newSVsv (fh);
1131 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1353 req->int1 = fd;
1132 : IoOFP (sv_2io (fh))); 1354 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1133 req->offset = offset; 1355 req->size = len;
1134 req->length = length;
1135 req->data = SvREFCNT_inc (data); 1356 req->sv2 = SvREFCNT_inc (data);
1136 req->dataptr = (char *)svptr + dataoffset; 1357 req->ptr2 = (char *)svptr + dataoffset;
1358 req->stroffset = dataoffset;
1137 1359
1138 if (!SvREADONLY (data)) 1360 if (!SvREADONLY (data))
1139 { 1361 {
1140 SvREADONLY_on (data); 1362 SvREADONLY_on (data);
1141 req->data2ptr = (void *)data; 1363 req->flags |= FLAG_SV2_RO_OFF;
1142 } 1364 }
1143 1365
1144 REQ_SEND; 1366 REQ_SEND;
1145 } 1367 }
1146} 1368}
1147 1369
1148void 1370void
1149aio_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)
1150 SV * out_fh 1372 ALIAS:
1151 SV * in_fh 1373 aio_ioctl = EIO_IOCTL
1152 UV in_offset 1374 aio_fcntl = EIO_FCNTL
1153 UV length
1154 SV * callback
1155 PROTOTYPE: $$$$;$
1156 PPCODE: 1375 PPCODE:
1157{ 1376{
1158 dREQ; 1377 int fd = s_fileno_croak (fh, 0);
1378 char *svptr;
1159 1379
1160 req->type = REQ_SENDFILE; 1380 if (SvPOK (arg) || !SvNIOK (arg))
1161 req->fh = newSVsv (out_fh);
1162 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1163 req->fh2 = newSVsv (in_fh);
1164 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1165 req->offset = in_offset;
1166 req->length = length;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1173 SV * fh
1174 UV offset
1175 IV length
1176 SV * callback
1177 PROTOTYPE: $$$;$
1178 PPCODE:
1179{
1180 dREQ;
1181
1182 req->type = REQ_READAHEAD;
1183 req->fh = newSVsv (fh);
1184 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1185 req->offset = offset;
1186 req->length = length;
1187
1188 REQ_SEND;
1189}
1190
1191void
1192aio_stat (fh_or_path,callback=&PL_sv_undef)
1193 SV * fh_or_path
1194 SV * callback
1195 ALIAS:
1196 aio_stat = REQ_STAT
1197 aio_lstat = REQ_LSTAT
1198 PPCODE:
1199{
1200 dREQ;
1201
1202 New (0, req->statdata, 1, Stat_t);
1203 if (!req->statdata)
1204 { 1381 {
1205 req_free (req); 1382 STRLEN svlen;
1206 croak ("out of memory during aio_req->statdata allocation"); 1383 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1207 } 1384#ifdef IOCPARM_LEN
1385 STRLEN need = IOCPARM_LEN (request);
1386#else
1387 STRLEN need = 256;
1388#endif
1208 1389
1209 if (SvPOK (fh_or_path)) 1390 if (svlen < need)
1210 { 1391 svptr = SvGROW (arg, need);
1211 req->type = ix;
1212 req->data = newSVsv (fh_or_path);
1213 req->dataptr = SvPVbyte_nolen (req->data);
1214 } 1392 }
1215 else 1393 else
1394 svptr = (char *)SvIV (arg);
1395
1216 { 1396 {
1397 dREQ;
1398
1217 req->type = REQ_FSTAT; 1399 req->type = ix;
1218 req->fh = newSVsv (fh_or_path); 1400 req->sv1 = newSVsv (fh);
1219 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;
1220 } 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);
1221 1421
1222 REQ_SEND; 1422 REQ_SEND;
1223} 1423}
1224 1424
1225void 1425void
1226aio_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)
1227 SV * pathname 1427 PPCODE:
1228 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)
1229 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:
1230 aio_unlink = REQ_UNLINK 1574 aio_unlink = EIO_UNLINK
1231 aio_rmdir = REQ_RMDIR 1575 aio_rmdir = EIO_RMDIR
1232 aio_readdir = REQ_READDIR 1576 aio_readdir = EIO_READDIR
1233 PPCODE: 1577 PPCODE:
1234{ 1578{
1235 dREQ; 1579 dREQ;
1236 1580
1237 req->type = ix; 1581 req->type = ix;
1238 req->data = newSVsv (pathname); 1582 req_set_path1 (req, pathname);
1239 req->dataptr = SvPVbyte_nolen (req->data); 1583
1240
1241 REQ_SEND; 1584 REQ_SEND;
1242} 1585}
1243 1586
1244void 1587void
1245aio_link (oldpath,newpath,callback=&PL_sv_undef) 1588aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1246 SV * oldpath
1247 SV * newpath
1248 SV * callback
1249 ALIAS: 1589 ALIAS:
1250 aio_link = REQ_LINK 1590 aio_link = EIO_LINK
1251 aio_symlink = REQ_SYMLINK 1591 aio_symlink = EIO_SYMLINK
1252 aio_rename = REQ_RENAME 1592 aio_rename = EIO_RENAME
1253 PPCODE: 1593 PPCODE:
1254{ 1594{
1595 eio_wd wd2 = 0;
1255 dREQ; 1596 dREQ;
1256 1597
1257 req->type = ix; 1598 req->type = ix;
1258 req->fh = newSVsv (oldpath); 1599 req_set_path1 (req, oldpath);
1259 req->data2ptr = SvPVbyte_nolen (req->fh); 1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1260 req->data = newSVsv (newpath); 1601 req->int3 = (long)wd2;
1261 req->dataptr = SvPVbyte_nolen (req->data);
1262 1602
1263 REQ_SEND; 1603 REQ_SEND;
1264} 1604}
1265 1605
1266void 1606void
1267aio_sleep (delay,callback=&PL_sv_undef) 1607aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1268 double delay
1269 SV * callback
1270 PPCODE: 1608 PPCODE:
1271{ 1609{
1610 eio_wd wd2 = 0;
1272 dREQ; 1611 dREQ;
1273 1612
1274 req->type = REQ_SLEEP; 1613 req->type = EIO_RENAME;
1275 req->fd = delay < 0. ? 0 : delay; 1614 req_set_path1 (req, oldpath);
1276 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1277 1616 req->int2 = flags;
1617 req->int3 = (long)wd2;
1618
1278 REQ_SEND; 1619 REQ_SEND;
1279} 1620}
1280 1621
1281void 1622void
1282aio_group (callback=&PL_sv_undef) 1623aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1283 SV * callback 1624 PPCODE:
1284 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
1285 PPCODE: 1641 PPCODE:
1286{ 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);
1287 dREQ; 1718 dREQ;
1288 1719
1289 req->type = REQ_GROUP; 1720 req->type = EIO_CUSTOM;
1290 req_send (req); 1721 req->sv1 = newSVsv (fh);
1722 req->int1 = fd;
1291 1723
1292 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1724 req->feed = fiemap;
1293} 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
1294 1732
1733 REQ_SEND;
1734}
1735
1295void 1736void
1296aio_nop (callback=&PL_sv_undef) 1737aio_busy (double delay, SV *callback = &PL_sv_undef)
1297 SV * callback
1298 PPCODE: 1738 PPCODE:
1299{ 1739{
1300 dREQ; 1740 dREQ;
1301 1741
1302 req->type = REQ_NOP; 1742 req->type = EIO_BUSY;
1743 req->nv1 = delay < 0. ? 0. : delay;
1303 1744
1304 REQ_SEND; 1745 REQ_SEND;
1305} 1746}
1306 1747
1307void 1748void
1749aio_group (SV *callback = &PL_sv_undef)
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
1308aioreq_pri (int pri = DEFAULT_PRI) 1778aioreq_pri (int pri = NO_INIT)
1309 CODE: 1779 CODE:
1780 RETVAL = next_pri;
1781 if (items > 0)
1782 {
1310 if (pri < PRI_MIN) pri = PRI_MIN; 1783 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1311 if (pri > PRI_MAX) pri = PRI_MAX; 1784 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1312 next_pri = pri + PRI_BIAS; 1785 next_pri = pri;
1786 }
1787 OUTPUT:
1788 RETVAL
1789
1790void
1791aioreq_nice (int nice = 0)
1792 CODE:
1793 nice = next_pri - nice;
1794 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1795 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1796 next_pri = nice;
1313 1797
1314void 1798void
1315flush () 1799flush ()
1316 PROTOTYPE:
1317 CODE: 1800 CODE:
1318 while (nreqs) 1801 while (eio_nreqs ())
1319 { 1802 {
1320 poll_wait (); 1803 poll_wait ();
1321 poll_cb (); 1804 poll_cb ();
1322 } 1805 }
1323 1806
1324void 1807int
1325poll() 1808poll ()
1326 PROTOTYPE:
1327 CODE: 1809 CODE:
1328 if (nreqs)
1329 {
1330 poll_wait (); 1810 poll_wait ();
1331 poll_cb (); 1811 RETVAL = poll_cb ();
1332 }
1333
1334int
1335poll_fileno()
1336 PROTOTYPE:
1337 CODE:
1338 RETVAL = respipe [0];
1339 OUTPUT: 1812 OUTPUT:
1340 RETVAL 1813 RETVAL
1341 1814
1342int 1815int
1816poll_fileno ()
1817 CODE:
1818 RETVAL = s_epipe_fd (&respipe);
1819 OUTPUT:
1820 RETVAL
1821
1822int
1343poll_cb(...) 1823poll_cb (...)
1344 PROTOTYPE: 1824 PROTOTYPE:
1345 CODE: 1825 CODE:
1346 RETVAL = poll_cb (); 1826 RETVAL = poll_cb ();
1347 OUTPUT: 1827 OUTPUT:
1348 RETVAL 1828 RETVAL
1349 1829
1350void 1830void
1351poll_wait() 1831poll_wait ()
1352 PROTOTYPE:
1353 CODE: 1832 CODE:
1354 if (nreqs)
1355 poll_wait (); 1833 poll_wait ();
1356 1834
1357int 1835int
1358nreqs() 1836nreqs ()
1359 PROTOTYPE:
1360 CODE: 1837 CODE:
1361 RETVAL = nreqs; 1838 RETVAL = eio_nreqs ();
1362 OUTPUT: 1839 OUTPUT:
1363 RETVAL 1840 RETVAL
1364 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
1365PROTOTYPES: 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}
1366 2088
1367MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2089MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1368 2090
1369void 2091void
1370cancel (aio_req_ornot req) 2092cancel (aio_req_ornot req)
1371 CODE: 2093 CODE:
1372 req_cancel (req); 2094 eio_cancel (req);
1373 2095
1374void 2096void
1375cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2097cb (aio_req_ornot req, SV *callback = NO_INIT)
1376 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
1377 SvREFCNT_dec (req->callback); 2107 SvREFCNT_dec (req->callback);
1378 req->callback = newSVsv (callback); 2108 req->callback = SvREFCNT_inc (cb_cv);
2109 }
2110}
1379 2111
1380MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2112MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1381 2113
1382void 2114void
1383add (aio_req grp, ...) 2115add (aio_req grp, ...)
1384 PPCODE: 2116 PPCODE:
1385{ 2117{
1386 int i; 2118 int i;
1387 aio_req req;
1388 2119
1389 if (grp->fd == 2) 2120 if (grp->int1 == 2)
1390 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");
1391 2122
1392 for (i = 1; i < items; ++i ) 2123 for (i = 1; i < items; ++i )
1393 { 2124 {
2125 aio_req req;
2126
1394 if (GIMME_V != G_VOID) 2127 if (GIMME_V != G_VOID)
1395 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2128 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1396 2129
1397 req = SvAIO_REQ (ST (i)); 2130 req = SvAIO_REQ (ST (i));
1398 2131
1399 if (req) 2132 if (req)
1400 { 2133 eio_grp_add (grp, req);
1401 ++grp->length;
1402 req->grp = grp;
1403
1404 req->grp_prev = 0;
1405 req->grp_next = grp->grp_first;
1406
1407 if (grp->grp_first)
1408 grp->grp_first->grp_prev = req;
1409
1410 grp->grp_first = req;
1411 }
1412 } 2134 }
1413} 2135}
2136
2137void
2138cancel_subs (aio_req_ornot req)
2139 CODE:
2140 req_cancel_subs (req);
1414 2141
1415void 2142void
1416result (aio_req grp, ...) 2143result (aio_req grp, ...)
1417 CODE: 2144 CODE:
1418{ 2145{
1419 int i; 2146 int i;
2147 AV *av;
2148
2149 grp->errorno = errno;
2150
1420 AV *av = newAV (); 2151 av = newAV ();
2152 av_extend (av, items - 1);
1421 2153
1422 for (i = 1; i < items; ++i ) 2154 for (i = 1; i < items; ++i )
1423 av_push (av, newSVsv (ST (i))); 2155 av_push (av, newSVsv (ST (i)));
1424 2156
1425 SvREFCNT_dec (grp->data); 2157 SvREFCNT_dec (grp->sv1);
1426 grp->data = (SV *)av; 2158 grp->sv1 = (SV *)av;
1427} 2159}
2160
2161void
2162errno (aio_req grp, int errorno = errno)
2163 CODE:
2164 grp->errorno = errorno;
1428 2165
1429void 2166void
1430limit (aio_req grp, int limit) 2167limit (aio_req grp, int limit)
1431 CODE: 2168 CODE:
1432 grp->fd2 = limit; 2169 eio_grp_limit (grp, limit);
1433 aio_grp_feed (grp);
1434 2170
1435void 2171void
1436feed (aio_req grp, SV *callback=&PL_sv_undef) 2172feed (aio_req grp, SV *callback = &PL_sv_undef)
1437 CODE: 2173 CODE:
1438{ 2174{
1439 SvREFCNT_dec (grp->fh2); 2175 SvREFCNT_dec (grp->sv2);
1440 grp->fh2 = newSVsv (callback); 2176 grp->sv2 = newSVsv (callback);
2177 grp->feed = aio_grp_feed;
1441 2178
1442 if (grp->fd2 <= 0) 2179 if (grp->int2 <= 0)
1443 grp->fd2 = 2; 2180 grp->int2 = 2;
1444 2181
1445 aio_grp_feed (grp); 2182 eio_grp_limit (grp, grp->int2);
1446} 2183}
1447 2184

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