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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.83 by root, Sat Oct 28 00:17:30 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 && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. 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
40# include <sys/socket.h> 86 #include <sys/time.h>
41# elif __solaris /* not yet */
42# 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
43# else 145# else
44# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 147# endif
46#endif 148#endif
47 149
48/* used for struct dirent, AIX doesn't provide it */ 150/* defines all sorts of constants to 0 unless they are already defined */
49#ifndef NAME_MAX 151/* also provides const_iv_ and const_niv_ macros for them */
50# define NAME_MAX 4096 152#include "def0.h"
51#endif
52 153
53#ifndef PTHREAD_STACK_MIN 154#ifndef makedev
54/* care for broken platforms, e.g. windows */ 155# define makedev(maj,min) (((maj) << 8) | (min))
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
76#endif 159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
77 163
78/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
79#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
80 167
81#define dBUF \ 168/*****************************************************************************/
82 char *aio_buf; \ 169
83 LOCK (wrklock); \ 170static void
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 171fiemap (eio_req *req)
85 UNLOCK (wrklock); \ 172{
86 if (!aio_buf) \ 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)
87 return -1; 191 return;
88 192
89enum { 193 req->ptr1 = fiemap;
90 REQ_QUIT,
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_MKNOD, REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101};
102 194
103#define AIO_REQ_KLASS "IO::AIO::REQ" 195 fiemap->fm_start = req->offs;
104#define AIO_GRP_KLASS "IO::AIO::GRP" 196 fiemap->fm_length = req->size;
197 fiemap->fm_flags = req->int2;
198 fiemap->fm_extent_count = count;
105 199
106typedef struct aio_cb 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
107{ 201 return;
108 struct aio_cb *volatile next;
109 202
110 SV *data, *callback; 203 if (req->int3 >= 0 /* not autosizing */
111 SV *fh, *fh2; 204 || !fiemap->fm_mapped_extents /* no more extents */
112 void *dataptr, *data2ptr; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
113 Stat_t *statdata; 206 goto done;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 207
118 STRLEN dataoffset; 208 /* else we have to loop -
119 int type; 209 * it would be tempting (actually I tried that first) to just query the
120 int fd, fd2; 210 * number of extents needed, but linux often feels like not returning all
121 int errorno; 211 * extents, without telling us it left any out. this complicates
122 mode_t mode; /* open */ 212 * this quite a bit.
213 */
123 214
124 unsigned char flags; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
125 unsigned char pri;
126 216
127 SV *self; /* the perl counterpart of this request, if any */ 217 for (;;)
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129} aio_cb;
130
131enum {
132 FLAG_CANCELLED = 0x01,
133};
134
135typedef aio_cb *aio_req;
136typedef aio_cb *aio_req_ornot;
137
138enum {
139 PRI_MIN = -4,
140 PRI_MAX = 4,
141
142 DEFAULT_PRI = 0,
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150
151#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153#else
154# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155#endif
156
157#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159
160/* worker threads management */
161static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
162
163typedef struct worker {
164 /* locked by wrklock */
165 struct worker *prev, *next;
166
167 pthread_t tid;
168
169 /* locked by reslock, reqlock or wrklock */
170 aio_req req; /* currently processed request */
171 void *dbuf;
172 DIR *dirp;
173} worker;
174
175static worker wrk_first = { &wrk_first, &wrk_first, 0 };
176
177static void worker_clear (worker *wrk)
178{
179 if (wrk->dirp)
180 { 218 {
181 closedir (wrk->dirp); 219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
182 wrk->dirp = 0; 220 char scratch[3072];
183 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
184 222
185 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
186 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
187 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
188 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
189 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
190}
191 228
192static void worker_free (worker *wrk) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
193{
194 wrk->next->prev = wrk->prev;
195 wrk->prev->next = wrk->next;
196
197 free (wrk);
198}
199
200static volatile unsigned int nreqs, nready, npending;
201static volatile unsigned int max_outstanding = 0xffffffff;
202static int respipe [2];
203
204static pthread_mutex_t reslock = AIO_MUTEX_INIT;
205static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
206static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
207
208#if WORDREAD_UNSAFE
209
210static unsigned int get_nready ()
211{
212 unsigned int retval;
213
214 LOCK (reqlock);
215 retval = nready;
216 UNLOCK (reqlock);
217
218 return retval;
219}
220
221static unsigned int get_npending ()
222{
223 unsigned int retval;
224
225 LOCK (reslock);
226 retval = npending;
227 UNLOCK (reslock);
228
229 return retval;
230}
231
232#else
233
234# define get_nready() nready
235# define get_npending() npending
236
237#endif
238
239/*
240 * a somewhat faster data structure might be nice, but
241 * with 8 priorities this actually needs <20 insns
242 * per shift, the most expensive operation.
243 */
244typedef struct {
245 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
246 int size;
247} reqq;
248
249static reqq req_queue;
250static reqq res_queue;
251
252int reqq_push (reqq *q, aio_req req)
253{
254 int pri = req->pri;
255 req->next = 0;
256
257 if (q->qe[pri])
258 {
259 q->qe[pri]->next = req;
260 q->qe[pri] = req;
261 }
262 else
263 q->qe[pri] = q->qs[pri] = req;
264
265 return q->size++;
266}
267
268aio_req reqq_shift (reqq *q)
269{
270 int pri;
271
272 if (!q->size)
273 return 0; 230 return;
274 231
275 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
276 234
277 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
278 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
279 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
280
281 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
282 { 244 {
283 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
284 q->qe[pri] = 0;
285 246
286 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
287 } 255 }
288 } 256 }
289 257
290 abort (); 258done:
291} 259 req->result = 0;
292 260
293static int poll_cb (int max); 261#else
294static void req_invoke (aio_req req); 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
295static void req_free (aio_req req); 282static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
297 284
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}
298
298/* must be called at most once */ 299/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
300{ 302{
301 if (!req->self) 303 if (!req->self)
302 { 304 {
303 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 307 }
306 308
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 310}
309 311
310static 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)
311{ 320{
312 MAGIC *mg; 321 MAGIC *mg;
313 322
314 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")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
316 329
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 331
319 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
320} 333}
321 334
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
322static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
323{ 373{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
325 { 375 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 376 dSP;
331 377
332 ENTER; 378 ENTER;
333 SAVETMPS; 379 SAVETMPS;
334 PUSHMARK (SP); 380 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 382 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 384 SPAGAIN;
339 FREETMPS; 385 FREETMPS;
340 LEAVE; 386 LEAVE;
341 }
342
343 /* stop if no progress has been made */
344 if (old_len == grp->length)
345 {
346 SvREFCNT_dec (grp->fh2);
347 grp->fh2 = 0;
348 break;
349 }
350 } 387 }
351} 388}
352 389
353static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
354{ 392{
355 --grp->length; 393 eio_submit (req);
356 394
357 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 396 {
363 req_invoke (grp); 397 dSP;
364 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);
365 } 405 }
366} 406}
367 407
408static int
368static void req_invoke (aio_req req) 409req_invoke (eio_req *req)
369{ 410{
370 dSP; 411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
371 413
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 414 if (!EIO_CANCELLED (req) && req->callback)
373 { 415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
374 ENTER; 420 ENTER;
375 SAVETMPS; 421 SAVETMPS;
376 PUSHMARK (SP); 422 PUSHMARK (SP);
377 EXTEND (SP, 1); 423 EXTEND (SP, 1);
378 424
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
379 switch (req->type) 438 switch (req->type)
380 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
381 case REQ_READDIR: 444 case EIO_READDIR:
382 { 445 {
383 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
384 447
385 if (req->result >= 0) 448 if (req->result >= 0)
386 { 449 {
387 int i; 450 int i;
388 char *buf = req->data2ptr; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 453 AV *av = newAV ();
390 454
391 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
392 456
393 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
394 { 458 {
395 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 462
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
397 av_store (av, i, sv); 483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
399 } 493 }
400 494
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 496 }
403 497
404 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))));
405 } 502 }
406 break; 503 break;
407 504
408 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:
409 { 511 {
410 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
411 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));
412 524
413 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
414 PUTBACK;
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
416 SPAGAIN;
417 526
418 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
419 540
420 PUSHMARK (SP); 541 PUSHs (rv);
421 XPUSHs (sv_2mortal (fh));
422 } 542 }
543
423 break; 544 break;
424 545
425 case REQ_GROUP: 546 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
427 548
428 if (req->data) 549 if (req->sv1)
429 { 550 {
430 int i; 551 int i;
431 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
432 553
433 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
436 } 557 }
437 break; 558 break;
438 559
439 case REQ_NOP: 560 case EIO_NOP:
440 case REQ_BUSY: 561 case EIO_BUSY:
441 break; 562 break;
442 563
564 case EIO_READLINK:
565 case EIO_REALPATH:
566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
598 {
599#if HAVE_FIEMAP
600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
631 }
632 else
633 PUSHs (sv_result);
634 break;
635
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0)
638 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */
640
443 default: 641 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
445 break; 643 break;
446 } 644 }
447 645
448 errno = req->errorno; 646 errno = req->errorno;
449 647
450 PUTBACK; 648 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
453 656
454 FREETMPS; 657 FREETMPS;
455 LEAVE; 658 LEAVE;
659
660 PUTBACK;
456 } 661 }
457 662
458 if (req->grp) 663 return !!SvTRUE (ERRSV);
459 {
460 aio_req grp = req->grp;
461
462 /* unlink request */
463 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
464 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
465
466 if (grp->grp_first == req)
467 grp->grp_first = req->grp_next;
468
469 aio_grp_dec (grp);
470 }
471
472 if (SvTRUE (ERRSV))
473 {
474 req_free (req);
475 croak (0);
476 }
477} 664}
478 665
479static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
480{ 668{
481 if (req->self) 669 if (req->self)
482 { 670 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
485 } 673 }
486 674
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 680
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 681 free (req);
497} 682}
498 683
684static void
499static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
500{ 686{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
504 return; 688 return;
505 689
506 SvREFCNT_dec (grp->fh2); 690 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 691 grp->sv2 = 0;
508 692
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 694}
512 695
513static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
514{ 698{
515 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
516 700 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 701}
519 702
520static void *aio_proc(void *arg); 703static void
521 704poll_wait (void)
522static void start_thread (void)
523{ 705{
524 sigset_t fullsigset, oldsigset;
525 pthread_attr_t attr;
526
527 worker *wrk = calloc (1, sizeof (worker));
528
529 if (!wrk)
530 croak ("unable to allocate worker thread data");
531
532 pthread_attr_init (&attr);
533 pthread_attr_setstacksize (&attr, STACKSIZE);
534 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535#ifdef PTHREAD_SCOPE_PROCESS
536 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537#endif
538
539 sigfillset (&fullsigset);
540
541 LOCK (wrklock);
542 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543
544 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
545 {
546 wrk->prev = &wrk_first;
547 wrk->next = wrk_first.next;
548 wrk_first.next->prev = wrk;
549 wrk_first.next = wrk;
550 ++started;
551 }
552 else
553 free (wrk);
554
555 sigprocmask (SIG_SETMASK, &oldsigset, 0);
556 UNLOCK (wrklock);
557}
558
559static void maybe_start_thread ()
560{
561#if 0
562 static struct timeval last;
563 struct timeval diff, now;
564#endif
565
566 if (started >= wanted)
567 return;
568
569 if (nready <= nreqs - get_nready () - get_npending ())
570 return;
571
572#if 0
573 gettimeofday (&now, 0);
574
575 diff.tv_sec = now.tv_sec - last.tv_sec;
576 diff.tv_usec = now.tv_usec - last.tv_usec;
577
578 if (diff.tv_usec < 0)
579 {
580 --diff.tv_sec;
581 diff.tv_usec += 1000000;
582 }
583
584 if (!diff.tv_sec && diff.tv_usec < 10000)
585 return;
586
587 last = now;
588#endif
589
590 start_thread ();
591}
592
593static void req_send (aio_req req)
594{
595 ++nreqs;
596
597 LOCK (reqlock);
598 ++nready;
599 reqq_push (&req_queue, req);
600 pthread_cond_signal (&reqwait);
601 UNLOCK (reqlock);
602
603 maybe_start_thread ();
604}
605
606static void end_thread (void)
607{
608 aio_req req;
609
610 Newz (0, req, 1, aio_cb);
611
612 req->type = REQ_QUIT;
613 req->pri = PRI_MAX + PRI_BIAS;
614
615 LOCK (reqlock);
616 reqq_push (&req_queue, req);
617 pthread_cond_signal (&reqwait);
618 UNLOCK (reqlock);
619
620 LOCK (wrklock);
621 --started;
622 UNLOCK (wrklock);
623}
624
625static void min_parallel (int nthreads)
626{
627 if (wanted < nthreads)
628 wanted = nthreads;
629}
630
631static void max_parallel (int nthreads)
632{
633 if (wanted > nthreads)
634 wanted = nthreads;
635
636 while (started > wanted)
637 end_thread ();
638}
639
640static void poll_wait ()
641{
642 fd_set rfd;
643
644 while (nreqs) 706 while (eio_nreqs ())
645 { 707 {
646 int size; 708 int size;
647 if (WORDREAD_UNSAFE) LOCK (reslock); 709
710 X_LOCK (EIO_POOL->reslock);
648 size = res_queue.size; 711 size = EIO_POOL->res_queue.size;
649 if (WORDREAD_UNSAFE) UNLOCK (reslock); 712 X_UNLOCK (EIO_POOL->reslock);
650 713
651 if (size) 714 if (size)
652 return; 715 return;
653 716
654 maybe_start_thread (); 717 etp_maybe_start_thread (EIO_POOL);
655 718
656 FD_ZERO(&rfd); 719 s_epipe_wait (&respipe);
657 FD_SET(respipe [0], &rfd);
658
659 select (respipe [0] + 1, &rfd, 0, 0, 0);
660 } 720 }
661} 721}
662 722
663static int poll_cb (int max) 723static int
724poll_cb (void)
664{ 725{
665 dSP;
666 int count = 0;
667 int do_croak = 0;
668 aio_req req;
669
670 for (;;) 726 for (;;)
671 { 727 {
672 while (max <= 0 || count < max) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#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)
673 { 836 {
674 maybe_start_thread (); 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
675 839
676 LOCK (reslock); 840 if (SvOK (wdob))
677 req = reqq_shift (&res_queue);
678
679 if (req)
680 { 841 {
681 --npending; 842 *wd = SvAIO_WD (wdob);
682 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
683 if (!res_queue.size)
684 {
685 /* read any signals sent by the worker threads */
686 char buf [32];
687 while (read (respipe [0], buf, 32) == 32)
688 ;
689 }
690 }
691
692 UNLOCK (reslock);
693
694 if (!req)
695 break;
696
697 --nreqs;
698
699 if (req->type == REQ_GROUP && req->length)
700 {
701 req->fd = 1; /* mark request as delayed */
702 continue;
703 } 844 }
704 else 845 else
705 { 846 *wd = EIO_INVALID_WD;
706 if (req->type == REQ_READ)
707 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
708
709 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
710 SvREADONLY_off (req->data);
711
712 if (req->statdata)
713 {
714 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
715 PL_laststatval = req->result;
716 PL_statcache = *(req->statdata);
717 }
718
719 req_invoke (req);
720
721 count++;
722 }
723
724 req_free (req);
725 } 847 }
848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
849 {
850 *wd = (aio_wd)(long)SvIVX (rv);
851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
854 }
855 else
856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
857 }
726 858
727 if (nreqs <= max_outstanding) 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
861}
862
863static void ecb_noinline
864req_set_path1 (aio_req req, SV *path)
865{
866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
867}
868
869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
871{
872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
873
874 switch (SvTYPE (rv))
875 {
876 case SVt_PVIO:
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)));
728 break; 882 break;
729 883
730 poll_wait (); 884 default:
731 885 req->type = type_path;
732 max = 0; 886 req_set_path1 (req, fh_or_path);
887 break;
733 } 888 }
734
735 return count;
736} 889}
737 890
738static void create_pipe () 891XS(boot_IO__AIO) ecb_cold;
739{
740 if (pipe (respipe))
741 croak ("unable to initialize result pipe");
742 892
743 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745
746 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
747 croak ("cannot set result pipe to nonblocking mode");
748}
749
750/*****************************************************************************/
751/* work around various missing functions */
752
753#if !HAVE_PREADWRITE
754# define pread aio_pread
755# define pwrite aio_pwrite
756
757/*
758 * make our pread/pwrite safe against themselves, but not against
759 * normal read/write by using a mutex. slows down execution a lot,
760 * but that's your problem, not mine.
761 */
762static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
763
764static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
765{
766 ssize_t res;
767 off_t ooffset;
768
769 LOCK (preadwritelock);
770 ooffset = lseek (fd, 0, SEEK_CUR);
771 lseek (fd, offset, SEEK_SET);
772 res = read (fd, buf, count);
773 lseek (fd, ooffset, SEEK_SET);
774 UNLOCK (preadwritelock);
775
776 return res;
777}
778
779static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
780{
781 ssize_t res;
782 off_t ooffset;
783
784 LOCK (preadwritelock);
785 ooffset = lseek (fd, 0, SEEK_CUR);
786 lseek (fd, offset, SEEK_SET);
787 res = write (fd, buf, count);
788 lseek (fd, offset, SEEK_SET);
789 UNLOCK (preadwritelock);
790
791 return res;
792}
793#endif
794
795#if !HAVE_FDATASYNC
796# define fdatasync fsync
797#endif
798
799#if !HAVE_READAHEAD
800# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
801
802static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
803{
804 dBUF;
805
806 while (count > 0)
807 {
808 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
809
810 pread (fd, aio_buf, len, offset);
811 offset += len;
812 count -= len;
813 }
814
815 errno = 0;
816}
817
818#endif
819
820#if !HAVE_READDIR_R
821# define readdir_r aio_readdir_r
822
823static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
824
825static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
826{
827 struct dirent *e;
828 int errorno;
829
830 LOCK (readdirlock);
831
832 e = readdir (dirp);
833 errorno = errno;
834
835 if (e)
836 {
837 *res = ent;
838 strcpy (ent->d_name, e->d_name);
839 }
840 else
841 *res = 0;
842
843 UNLOCK (readdirlock);
844
845 errno = errorno;
846 return e ? 0 : -1;
847}
848#endif
849
850/* sendfile always needs emulation */
851static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
852{
853 ssize_t res;
854
855 if (!count)
856 return 0;
857
858#if HAVE_SENDFILE
859# if __linux
860 res = sendfile (ofd, ifd, &offset, count);
861
862# elif __freebsd
863 /*
864 * Of course, the freebsd sendfile is a dire hack with no thoughts
865 * wasted on making it similar to other I/O functions.
866 */
867 {
868 off_t sbytes;
869 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
870
871 if (res < 0 && sbytes)
872 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
873 res = sbytes;
874 }
875
876# elif __hpux
877 res = sendfile (ofd, ifd, offset, count, 0, 0);
878
879# elif __solaris
880 {
881 struct sendfilevec vec;
882 size_t sbytes;
883
884 vec.sfv_fd = ifd;
885 vec.sfv_flag = 0;
886 vec.sfv_off = offset;
887 vec.sfv_len = count;
888
889 res = sendfilev (ofd, &vec, 1, &sbytes);
890
891 if (res < 0 && sbytes)
892 res = sbytes;
893 }
894
895# endif
896#else
897 res = -1;
898 errno = ENOSYS;
899#endif
900
901 if (res < 0
902 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
903#if __solaris
904 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
905#endif
906 )
907 )
908 {
909 /* emulate sendfile. this is a major pain in the ass */
910 dBUF;
911
912 res = 0;
913
914 while (count)
915 {
916 ssize_t cnt;
917
918 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
919
920 if (cnt <= 0)
921 {
922 if (cnt && !res) res = -1;
923 break;
924 }
925
926 cnt = write (ofd, aio_buf, cnt);
927
928 if (cnt <= 0)
929 {
930 if (cnt && !res) res = -1;
931 break;
932 }
933
934 offset += cnt;
935 res += cnt;
936 count -= cnt;
937 }
938 }
939
940 return res;
941}
942
943/* read a full directory */
944static void scandir_ (aio_req req, worker *self)
945{
946 DIR *dirp;
947 union
948 {
949 struct dirent d;
950 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
951 } *u;
952 struct dirent *entp;
953 char *name, *names;
954 int memlen = 4096;
955 int memofs = 0;
956 int res = 0;
957 int errorno;
958
959 LOCK (wrklock);
960 self->dirp = dirp = opendir (req->dataptr);
961 self->dbuf = u = malloc (sizeof (*u));
962 req->data2ptr = names = malloc (memlen);
963 UNLOCK (wrklock);
964
965 if (dirp && u && names)
966 for (;;)
967 {
968 errno = 0;
969 readdir_r (dirp, &u->d, &entp);
970
971 if (!entp)
972 break;
973
974 name = entp->d_name;
975
976 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
977 {
978 int len = strlen (name) + 1;
979
980 res++;
981
982 while (memofs + len > memlen)
983 {
984 memlen *= 2;
985 LOCK (wrklock);
986 req->data2ptr = names = realloc (names, memlen);
987 UNLOCK (wrklock);
988
989 if (!names)
990 break;
991 }
992
993 memcpy (names + memofs, name, len);
994 memofs += len;
995 }
996 }
997
998 if (errno)
999 res = -1;
1000
1001 req->result = res;
1002}
1003
1004/*****************************************************************************/
1005
1006static void *aio_proc (void *thr_arg)
1007{
1008 aio_req req;
1009 worker *self = (worker *)thr_arg;
1010
1011 for (;;)
1012 {
1013 LOCK (reqlock);
1014
1015 for (;;)
1016 {
1017 self->req = req = reqq_shift (&req_queue);
1018
1019 if (req)
1020 break;
1021
1022 pthread_cond_wait (&reqwait, &reqlock);
1023 }
1024
1025 --nready;
1026
1027 UNLOCK (reqlock);
1028
1029 errno = 0; /* strictly unnecessary */
1030
1031 if (!(req->flags & FLAG_CANCELLED))
1032 switch (req->type)
1033 {
1034 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1035 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1036
1037 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1038 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1039
1040 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1041 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1042 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1043
1044 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1045 case REQ_CLOSE: req->result = close (req->fd); break;
1046 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1047 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1048 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1049 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1050 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1051 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1052
1053 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1054 case REQ_FSYNC: req->result = fsync (req->fd); break;
1055 case REQ_READDIR: scandir_ (req, self); break;
1056
1057 case REQ_BUSY:
1058 {
1059 struct timeval tv;
1060
1061 tv.tv_sec = req->fd;
1062 tv.tv_usec = req->fd2;
1063
1064 req->result = select (0, 0, 0, 0, &tv);
1065 }
1066
1067 case REQ_GROUP:
1068 case REQ_NOP:
1069 break;
1070
1071 case REQ_QUIT:
1072 LOCK (wrklock);
1073 worker_free (self);
1074 --started;
1075 UNLOCK (wrklock);
1076 return 0;
1077
1078 default:
1079 req->result = ENOSYS;
1080 break;
1081 }
1082
1083 req->errorno = errno;
1084
1085 LOCK (reslock);
1086
1087 ++npending;
1088
1089 if (!reqq_push (&res_queue, req))
1090 /* write a dummy byte to the pipe so fh becomes ready */
1091 write (respipe [1], &respipe, 1);
1092
1093 self->req = 0;
1094 worker_clear (self);
1095
1096 UNLOCK (reslock);
1097 }
1098}
1099
1100/*****************************************************************************/
1101
1102static void atfork_prepare (void)
1103{
1104 LOCK (wrklock);
1105 LOCK (reqlock);
1106 LOCK (reslock);
1107#if !HAVE_PREADWRITE
1108 LOCK (preadwritelock);
1109#endif
1110#if !HAVE_READDIR_R
1111 LOCK (readdirlock);
1112#endif
1113}
1114
1115static void atfork_parent (void)
1116{
1117#if !HAVE_READDIR_R
1118 UNLOCK (readdirlock);
1119#endif
1120#if !HAVE_PREADWRITE
1121 UNLOCK (preadwritelock);
1122#endif
1123 UNLOCK (reslock);
1124 UNLOCK (reqlock);
1125 UNLOCK (wrklock);
1126}
1127
1128static void atfork_child (void)
1129{
1130 aio_req prv;
1131
1132 while (prv = reqq_shift (&req_queue))
1133 req_free (prv);
1134
1135 while (prv = reqq_shift (&res_queue))
1136 req_free (prv);
1137
1138 while (wrk_first.next != &wrk_first)
1139 {
1140 worker *wrk = wrk_first.next;
1141
1142 if (wrk->req)
1143 req_free (wrk->req);
1144
1145 worker_clear (wrk);
1146 worker_free (wrk);
1147 }
1148
1149 started = 0;
1150 nreqs = 0;
1151
1152 close (respipe [0]);
1153 close (respipe [1]);
1154 create_pipe ();
1155
1156 atfork_parent ();
1157}
1158
1159#define dREQ \
1160 aio_req req; \
1161 int req_pri = next_pri; \
1162 next_pri = DEFAULT_PRI + PRI_BIAS; \
1163 \
1164 if (SvOK (callback) && !SvROK (callback)) \
1165 croak ("callback must be undef or of reference type"); \
1166 \
1167 Newz (0, req, 1, aio_cb); \
1168 if (!req) \
1169 croak ("out of memory during aio_req allocation"); \
1170 \
1171 req->callback = newSVsv (callback); \
1172 req->pri = req_pri
1173
1174#define REQ_SEND \
1175 req_send (req); \
1176 \
1177 if (GIMME_V != G_VOID) \
1178 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1179
1180MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
1181 894
1182PROTOTYPES: ENABLE 895PROTOTYPES: ENABLE
1183 896
1184BOOT: 897BOOT:
1185{ 898{
899 static const struct {
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 },
906
907 /* you have to re-run ./gendef0 after adding/removing any constants here */
908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
912
913 /* for lseek */
914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
916
917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
923
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929
930 /* the second block will be 0 when missing */
931 const_iv (O_RDONLY)
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)
938
939 const_iv (O_ASYNC)
940 const_iv (O_DIRECT)
941 const_iv (O_NOATIME)
942
943 const_iv (O_CLOEXEC)
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)
956
957 const_iv (S_IFIFO)
958 const_iv (S_IFCHR)
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)
966
967 const_iv (ST_RDONLY)
968 const_iv (ST_NOSUID)
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)
979
980 const_iv (PROT_NONE)
981 const_iv (PROT_EXEC)
982 const_iv (PROT_READ)
983 const_iv (PROT_WRITE)
984
985 const_iv (MAP_PRIVATE)
986 const_iv (MAP_SHARED)
987 const_iv (MAP_FIXED)
988 const_iv (MAP_ANONYMOUS)
989
990 /* linuxish */
991 const_iv (MAP_LOCKED)
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)
999
1000 const_iv (F_DUPFD_CLOEXEC)
1001
1002 const_iv (F_OFD_GETLK)
1003 const_iv (F_OFD_SETLK)
1004 const_iv (F_OFD_GETLKW)
1005
1006 const_iv (FIFREEZE)
1007 const_iv (FITHAW)
1008 const_iv (FITRIM)
1009 const_iv (FICLONE)
1010 const_iv (FICLONERANGE)
1011 const_iv (FIDEDUPERANGE)
1012
1013 const_iv (FS_IOC_GETFLAGS)
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)
1023
1024 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1025
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)
1045
1046 const_iv (FS_XFLAG_REALTIME)
1047 const_iv (FS_XFLAG_PREALLOC)
1048 const_iv (FS_XFLAG_IMMUTABLE)
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)
1062
1063 const_iv (FIEMAP_FLAG_SYNC)
1064 const_iv (FIEMAP_FLAG_XATTR)
1065 const_iv (FIEMAP_FLAGS_COMPAT)
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)
1077
1078 const_iv (SPLICE_F_MOVE)
1079 const_iv (SPLICE_F_NONBLOCK)
1080 const_iv (SPLICE_F_MORE)
1081 const_iv (SPLICE_F_GIFT)
1082
1083 /* these are libeio constants, and are independent of gendef0 */
1084 const_eio (SEEK_SET)
1085 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END)
1087
1088 const_eio (MCL_FUTURE)
1089 const_eio (MCL_CURRENT)
1090
1091 const_eio (MS_ASYNC)
1092 const_eio (MS_INVALIDATE)
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)
1126 };
1127
1186 HV *stash = gv_stashpv ("IO::AIO", 1); 1128 aio_stash = gv_stashpv ("IO::AIO" , 1);
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);
1187 1132
1188 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1189 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1134 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1190 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1191 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1192 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1193 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1194 1135
1195 create_pipe (); 1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1196 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1197 1137
1198 start_thread (); 1138 reinit ();
1199} 1139}
1200 1140
1201void 1141void
1202min_parallel (int nthreads) 1142reinit ()
1203 PROTOTYPE: $ 1143 PROTOTYPE:
1204 1144
1205void 1145void
1206max_parallel (int nthreads) 1146max_poll_reqs (unsigned int nreqs)
1207 PROTOTYPE: $
1208
1209int
1210max_outstanding (int maxreqs)
1211 PROTOTYPE: $ 1147 PROTOTYPE: $
1212 CODE: 1148 CODE:
1213 RETVAL = max_outstanding; 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:
1214 max_outstanding = maxreqs; 1185 max_outstanding = maxreqs;
1215 OUTPUT:
1216 RETVAL
1217 1186
1218void 1187void
1219aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1188aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1220 SV * pathname
1221 int flags
1222 int mode
1223 SV * callback
1224 PROTOTYPE: $$$;$
1225 PPCODE: 1189 PPCODE:
1226{ 1190{
1227 dREQ; 1191 dREQ;
1228 1192
1229 req->type = REQ_OPEN; 1193 req->type = EIO_WD_OPEN;
1230 req->data = newSVsv (pathname); 1194 req_set_path1 (req, pathname);
1231 req->dataptr = SvPVbyte_nolen (req->data);
1232 req->fd = flags;
1233 req->mode = mode;
1234 1195
1235 REQ_SEND; 1196 REQ_SEND;
1236} 1197}
1237 1198
1238void 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
1239aio_close (fh,callback=&PL_sv_undef) 1214aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1240 SV * fh
1241 SV * callback
1242 PROTOTYPE: $;$
1243 ALIAS: 1215 ALIAS:
1244 aio_close = REQ_CLOSE
1245 aio_fsync = REQ_FSYNC 1216 aio_fsync = EIO_FSYNC
1246 aio_fdatasync = REQ_FDATASYNC 1217 aio_fdatasync = EIO_FDATASYNC
1218 aio_syncfs = EIO_SYNCFS
1247 PPCODE: 1219 PPCODE:
1248{ 1220{
1221 int fd = s_fileno_croak (fh, 0);
1249 dREQ; 1222 dREQ;
1250 1223
1251 req->type = ix; 1224 req->type = ix;
1252 req->fh = newSVsv (fh); 1225 req->sv1 = newSVsv (fh);
1253 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1226 req->int1 = fd;
1254 1227
1255 REQ_SEND (req); 1228 REQ_SEND;
1256} 1229}
1257 1230
1258void 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;
1242 req->size = nbytes;
1243 req->int2 = flags;
1244
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
1280#else
1281 pipe (pipefd) < 0
1282 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1283#endif
1284 || close (pipefd [1]) < 0
1285 )
1286 abort (); /*D*/
1287
1288 close_fd = pipefd [0];
1289 }
1290
1291 req->type = EIO_DUP2;
1292 req->int1 = close_fd;
1293 req->sv2 = newSVsv (fh);
1294 req->int2 = fd;
1295
1296 REQ_SEND;
1297}
1298
1299void
1300aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1301 PPCODE:
1302{
1303 int fd = s_fileno_croak (fh, 0);
1304 dREQ;
1305
1306 req->type = EIO_SEEK;
1307 req->sv1 = newSVsv (fh);
1308 req->int1 = fd;
1309 req->offs = SvVAL64 (offset);
1310 req->int2 = whence;
1311
1312 REQ_SEND;
1313}
1314
1315void
1259aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1316aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1260 SV * fh
1261 UV offset
1262 UV length
1263 SV * data
1264 UV dataoffset
1265 SV * callback
1266 ALIAS: 1317 ALIAS:
1267 aio_read = REQ_READ 1318 aio_read = EIO_READ
1268 aio_write = REQ_WRITE 1319 aio_write = EIO_WRITE
1269 PROTOTYPE: $$$$$;$
1270 PPCODE: 1320 PPCODE:
1271{ 1321{
1272 aio_req req;
1273 STRLEN svlen; 1322 STRLEN svlen;
1323 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1274 char *svptr = SvPVbyte (data, svlen); 1324 char *svptr = SvPVbyte (data, svlen);
1275 1325 UV len = SvUV (length);
1276 SvUPGRADE (data, SVt_PV);
1277 SvPOK_on (data);
1278 1326
1279 if (dataoffset < 0) 1327 if (dataoffset < 0)
1280 dataoffset += svlen; 1328 dataoffset += svlen;
1281 1329
1282 if (dataoffset < 0 || dataoffset > svlen) 1330 if (dataoffset < 0 || dataoffset > svlen)
1283 croak ("data offset outside of string"); 1331 croak ("dataoffset outside of data scalar");
1284 1332
1285 if (ix == REQ_WRITE) 1333 if (ix == EIO_WRITE)
1286 { 1334 {
1287 /* write: check length and adjust. */ 1335 /* write: check length and adjust. */
1288 if (length < 0 || length + dataoffset > svlen) 1336 if (!SvOK (length) || len + dataoffset > svlen)
1289 length = svlen - dataoffset; 1337 len = svlen - dataoffset;
1290 } 1338 }
1291 else 1339 else
1292 { 1340 {
1293 /* read: grow scalar as necessary */ 1341 /* read: check type and grow scalar as necessary */
1342 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1294 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");
1295 } 1346 }
1296
1297 if (length < 0)
1298 croak ("length must not be negative");
1299 1347
1300 { 1348 {
1301 dREQ; 1349 dREQ;
1302 1350
1303 req->type = ix; 1351 req->type = ix;
1304 req->fh = newSVsv (fh); 1352 req->sv1 = newSVsv (fh);
1305 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1353 req->int1 = fd;
1306 : IoOFP (sv_2io (fh))); 1354 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1307 req->offset = offset; 1355 req->size = len;
1308 req->length = length;
1309 req->data = SvREFCNT_inc (data); 1356 req->sv2 = SvREFCNT_inc (data);
1310 req->dataptr = (char *)svptr + dataoffset; 1357 req->ptr2 = (char *)svptr + dataoffset;
1358 req->stroffset = dataoffset;
1311 1359
1312 if (!SvREADONLY (data)) 1360 if (!SvREADONLY (data))
1313 { 1361 {
1314 SvREADONLY_on (data); 1362 SvREADONLY_on (data);
1315 req->data2ptr = (void *)data; 1363 req->flags |= FLAG_SV2_RO_OFF;
1316 } 1364 }
1317 1365
1318 REQ_SEND; 1366 REQ_SEND;
1319 } 1367 }
1320} 1368}
1321 1369
1322void 1370void
1323aio_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)
1324 SV * out_fh 1372 ALIAS:
1325 SV * in_fh 1373 aio_ioctl = EIO_IOCTL
1326 UV in_offset 1374 aio_fcntl = EIO_FCNTL
1327 UV length
1328 SV * callback
1329 PROTOTYPE: $$$$;$
1330 PPCODE: 1375 PPCODE:
1331{ 1376{
1332 dREQ; 1377 int fd = s_fileno_croak (fh, 0);
1378 char *svptr;
1333 1379
1334 req->type = REQ_SENDFILE; 1380 if (SvPOK (arg) || !SvNIOK (arg))
1335 req->fh = newSVsv (out_fh);
1336 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1337 req->fh2 = newSVsv (in_fh);
1338 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1339 req->offset = in_offset;
1340 req->length = length;
1341
1342 REQ_SEND;
1343}
1344
1345void
1346aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1347 SV * fh
1348 UV offset
1349 IV length
1350 SV * callback
1351 PROTOTYPE: $$$;$
1352 PPCODE:
1353{
1354 dREQ;
1355
1356 req->type = REQ_READAHEAD;
1357 req->fh = newSVsv (fh);
1358 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1359 req->offset = offset;
1360 req->length = length;
1361
1362 REQ_SEND;
1363}
1364
1365void
1366aio_stat (fh_or_path,callback=&PL_sv_undef)
1367 SV * fh_or_path
1368 SV * callback
1369 ALIAS:
1370 aio_stat = REQ_STAT
1371 aio_lstat = REQ_LSTAT
1372 PPCODE:
1373{
1374 dREQ;
1375
1376 New (0, req->statdata, 1, Stat_t);
1377 if (!req->statdata)
1378 { 1381 {
1379 req_free (req); 1382 STRLEN svlen;
1380 croak ("out of memory during aio_req->statdata allocation"); 1383 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1381 } 1384#ifdef IOCPARM_LEN
1385 STRLEN need = IOCPARM_LEN (request);
1386#else
1387 STRLEN need = 256;
1388#endif
1382 1389
1383 if (SvPOK (fh_or_path)) 1390 if (svlen < need)
1384 { 1391 svptr = SvGROW (arg, need);
1385 req->type = ix;
1386 req->data = newSVsv (fh_or_path);
1387 req->dataptr = SvPVbyte_nolen (req->data);
1388 } 1392 }
1389 else 1393 else
1394 svptr = (char *)SvIV (arg);
1395
1390 { 1396 {
1397 dREQ;
1398
1391 req->type = REQ_FSTAT; 1399 req->type = ix;
1392 req->fh = newSVsv (fh_or_path); 1400 req->sv1 = newSVsv (fh);
1393 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;
1394 } 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);
1395 1421
1396 REQ_SEND; 1422 REQ_SEND;
1397} 1423}
1398 1424
1399void 1425void
1400aio_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)
1401 SV * pathname 1427 PPCODE:
1402 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)
1403 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:
1404 aio_unlink = REQ_UNLINK 1574 aio_unlink = EIO_UNLINK
1405 aio_rmdir = REQ_RMDIR 1575 aio_rmdir = EIO_RMDIR
1406 aio_readdir = REQ_READDIR 1576 aio_readdir = EIO_READDIR
1407 PPCODE: 1577 PPCODE:
1408{ 1578{
1409 dREQ; 1579 dREQ;
1410 1580
1411 req->type = ix; 1581 req->type = ix;
1412 req->data = newSVsv (pathname); 1582 req_set_path1 (req, pathname);
1413 req->dataptr = SvPVbyte_nolen (req->data); 1583
1414
1415 REQ_SEND; 1584 REQ_SEND;
1416} 1585}
1417 1586
1418void 1587void
1419aio_link (oldpath,newpath,callback=&PL_sv_undef) 1588aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1420 SV * oldpath
1421 SV * newpath
1422 SV * callback
1423 ALIAS: 1589 ALIAS:
1424 aio_link = REQ_LINK 1590 aio_link = EIO_LINK
1425 aio_symlink = REQ_SYMLINK 1591 aio_symlink = EIO_SYMLINK
1426 aio_rename = REQ_RENAME 1592 aio_rename = EIO_RENAME
1427 PPCODE: 1593 PPCODE:
1428{ 1594{
1595 eio_wd wd2 = 0;
1429 dREQ; 1596 dREQ;
1430 1597
1431 req->type = ix; 1598 req->type = ix;
1432 req->fh = newSVsv (oldpath); 1599 req_set_path1 (req, oldpath);
1433 req->data2ptr = SvPVbyte_nolen (req->fh); 1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1434 req->data = newSVsv (newpath); 1601 req->int3 = (long)wd2;
1435 req->dataptr = SvPVbyte_nolen (req->data);
1436 1602
1437 REQ_SEND; 1603 REQ_SEND;
1438} 1604}
1439 1605
1440void 1606void
1441aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1607aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1442 SV * pathname
1443 SV * callback
1444 UV mode
1445 UV dev
1446 PPCODE: 1608 PPCODE:
1447{ 1609{
1610 eio_wd wd2 = 0;
1448 dREQ; 1611 dREQ;
1449 1612
1450 req->type = REQ_MKNOD; 1613 req->type = EIO_RENAME;
1451 req->data = newSVsv (pathname); 1614 req_set_path1 (req, oldpath);
1452 req->dataptr = SvPVbyte_nolen (req->data); 1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1453 req->mode = (mode_t)mode; 1616 req->int2 = flags;
1454 req->offset = dev; 1617 req->int3 = (long)wd2;
1455 1618
1456 REQ_SEND; 1619 REQ_SEND;
1457} 1620}
1458 1621
1459void 1622void
1460aio_busy (delay,callback=&PL_sv_undef) 1623aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1461 double delay
1462 SV * callback
1463 PPCODE: 1624 PPCODE:
1464{ 1625{
1465 dREQ; 1626 dREQ;
1466 1627
1467 req->type = REQ_BUSY; 1628 req->type = EIO_MKNOD;
1468 req->fd = delay < 0. ? 0 : delay; 1629 req->int2 = (mode_t)mode;
1469 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1630 req->offs = dev;
1470 1631 req_set_path1 (req, pathname);
1632
1471 REQ_SEND; 1633 REQ_SEND;
1472} 1634}
1473 1635
1474void 1636void
1475aio_group (callback=&PL_sv_undef) 1637aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1476 SV * callback 1638 ALIAS:
1477 PROTOTYPE: ;$ 1639 aio_mtouch = EIO_MTOUCH
1640 aio_msync = EIO_MSYNC
1478 PPCODE: 1641 PPCODE:
1479{ 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);
1480 dREQ; 1718 dREQ;
1481 1719
1482 req->type = REQ_GROUP; 1720 req->type = EIO_CUSTOM;
1483 req_send (req); 1721 req->sv1 = newSVsv (fh);
1722 req->int1 = fd;
1484 1723
1485 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1724 req->feed = fiemap;
1486} 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
1487 1732
1733 REQ_SEND;
1734}
1735
1488void 1736void
1489aio_nop (callback=&PL_sv_undef) 1737aio_busy (double delay, SV *callback = &PL_sv_undef)
1490 SV * callback
1491 PPCODE: 1738 PPCODE:
1492{ 1739{
1493 dREQ; 1740 dREQ;
1494 1741
1495 req->type = REQ_NOP; 1742 req->type = EIO_BUSY;
1743 req->nv1 = delay < 0. ? 0. : delay;
1496 1744
1497 REQ_SEND; 1745 REQ_SEND;
1498} 1746}
1499 1747
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
1500int 1777int
1501aioreq_pri (int pri = 0) 1778aioreq_pri (int pri = NO_INIT)
1502 PROTOTYPE: ;$
1503 CODE: 1779 CODE:
1504 RETVAL = next_pri - PRI_BIAS; 1780 RETVAL = next_pri;
1505 if (items > 0) 1781 if (items > 0)
1506 { 1782 {
1507 if (pri < PRI_MIN) pri = PRI_MIN; 1783 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1508 if (pri > PRI_MAX) pri = PRI_MAX; 1784 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1509 next_pri = pri + PRI_BIAS; 1785 next_pri = pri;
1510 } 1786 }
1511 OUTPUT: 1787 OUTPUT:
1512 RETVAL 1788 RETVAL
1513 1789
1514void 1790void
1515aioreq_nice (int nice = 0) 1791aioreq_nice (int nice = 0)
1516 CODE: 1792 CODE:
1517 nice = next_pri - nice; 1793 nice = next_pri - nice;
1518 if (nice < PRI_MIN) nice = PRI_MIN; 1794 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1519 if (nice > PRI_MAX) nice = PRI_MAX; 1795 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1520 next_pri = nice + PRI_BIAS; 1796 next_pri = nice;
1521 1797
1522void 1798void
1523flush () 1799flush ()
1800 CODE:
1801 while (eio_nreqs ())
1802 {
1803 poll_wait ();
1804 poll_cb ();
1805 }
1806
1807int
1808poll ()
1809 CODE:
1810 poll_wait ();
1811 RETVAL = poll_cb ();
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816poll_fileno ()
1817 CODE:
1818 RETVAL = s_epipe_fd (&respipe);
1819 OUTPUT:
1820 RETVAL
1821
1822int
1823poll_cb (...)
1524 PROTOTYPE: 1824 PROTOTYPE:
1525 CODE: 1825 CODE:
1526 while (nreqs)
1527 {
1528 poll_wait ();
1529 poll_cb (0); 1826 RETVAL = poll_cb ();
1530 }
1531
1532void
1533poll()
1534 PROTOTYPE:
1535 CODE:
1536 if (nreqs)
1537 {
1538 poll_wait ();
1539 poll_cb (0);
1540 }
1541
1542int
1543poll_fileno()
1544 PROTOTYPE:
1545 CODE:
1546 RETVAL = respipe [0];
1547 OUTPUT: 1827 OUTPUT:
1548 RETVAL 1828 RETVAL
1549 1829
1830void
1831poll_wait ()
1832 CODE:
1833 poll_wait ();
1834
1550int 1835int
1551poll_cb(...) 1836nreqs ()
1552 PROTOTYPE:
1553 CODE: 1837 CODE:
1554 RETVAL = poll_cb (0); 1838 RETVAL = eio_nreqs ();
1555 OUTPUT: 1839 OUTPUT:
1556 RETVAL 1840 RETVAL
1557 1841
1558int 1842int
1559poll_some(int max = 0) 1843nready ()
1560 PROTOTYPE: $
1561 CODE: 1844 CODE:
1562 RETVAL = poll_cb (max); 1845 RETVAL = eio_nready ();
1563 OUTPUT: 1846 OUTPUT:
1564 RETVAL 1847 RETVAL
1565 1848
1566void 1849int
1567poll_wait() 1850npending ()
1568 PROTOTYPE:
1569 CODE: 1851 CODE:
1570 if (nreqs) 1852 RETVAL = eio_npending ();
1571 poll_wait ();
1572
1573int
1574nreqs()
1575 PROTOTYPE:
1576 CODE:
1577 RETVAL = nreqs;
1578 OUTPUT: 1853 OUTPUT:
1579 RETVAL 1854 RETVAL
1580 1855
1581int 1856int
1582nready() 1857nthreads ()
1583 PROTOTYPE:
1584 CODE: 1858 CODE:
1585 RETVAL = get_nready (); 1859 RETVAL = eio_nthreads ();
1586 OUTPUT: 1860 OUTPUT:
1587 RETVAL 1861 RETVAL
1588 1862
1589int 1863int
1590npending() 1864fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1591 PROTOTYPE: 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)
1592 CODE: 1911 CODE:
1593 RETVAL = get_npending (); 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}
1594 OUTPUT: 1942 OUTPUT:
1595 RETVAL 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;
1596 2058
1597PROTOTYPES: 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}
1598 2088
1599MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2089MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1600 2090
1601void 2091void
1602cancel (aio_req_ornot req) 2092cancel (aio_req_ornot req)
1603 CODE: 2093 CODE:
1604 req_cancel (req); 2094 eio_cancel (req);
1605 2095
1606void 2096void
1607cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2097cb (aio_req_ornot req, SV *callback = NO_INIT)
1608 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
1609 SvREFCNT_dec (req->callback); 2107 SvREFCNT_dec (req->callback);
1610 req->callback = newSVsv (callback); 2108 req->callback = SvREFCNT_inc (cb_cv);
2109 }
2110}
1611 2111
1612MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2112MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1613 2113
1614void 2114void
1615add (aio_req grp, ...) 2115add (aio_req grp, ...)
1616 PPCODE: 2116 PPCODE:
1617{ 2117{
1618 int i; 2118 int i;
1619 aio_req req;
1620 2119
1621 if (grp->fd == 2) 2120 if (grp->int1 == 2)
1622 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");
1623 2122
1624 for (i = 1; i < items; ++i ) 2123 for (i = 1; i < items; ++i )
1625 { 2124 {
2125 aio_req req;
2126
1626 if (GIMME_V != G_VOID) 2127 if (GIMME_V != G_VOID)
1627 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2128 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1628 2129
1629 req = SvAIO_REQ (ST (i)); 2130 req = SvAIO_REQ (ST (i));
1630 2131
1631 if (req) 2132 if (req)
1632 { 2133 eio_grp_add (grp, req);
1633 ++grp->length;
1634 req->grp = grp;
1635
1636 req->grp_prev = 0;
1637 req->grp_next = grp->grp_first;
1638
1639 if (grp->grp_first)
1640 grp->grp_first->grp_prev = req;
1641
1642 grp->grp_first = req;
1643 }
1644 } 2134 }
1645} 2135}
1646 2136
1647void 2137void
1648cancel_subs (aio_req_ornot req) 2138cancel_subs (aio_req_ornot req)
… …
1657 AV *av; 2147 AV *av;
1658 2148
1659 grp->errorno = errno; 2149 grp->errorno = errno;
1660 2150
1661 av = newAV (); 2151 av = newAV ();
2152 av_extend (av, items - 1);
1662 2153
1663 for (i = 1; i < items; ++i ) 2154 for (i = 1; i < items; ++i )
1664 av_push (av, newSVsv (ST (i))); 2155 av_push (av, newSVsv (ST (i)));
1665 2156
1666 SvREFCNT_dec (grp->data); 2157 SvREFCNT_dec (grp->sv1);
1667 grp->data = (SV *)av; 2158 grp->sv1 = (SV *)av;
1668} 2159}
1669 2160
1670void 2161void
1671errno (aio_req grp, int errorno = errno) 2162errno (aio_req grp, int errorno = errno)
1672 CODE: 2163 CODE:
1673 grp->errorno = errorno; 2164 grp->errorno = errorno;
1674 2165
1675void 2166void
1676limit (aio_req grp, int limit) 2167limit (aio_req grp, int limit)
1677 CODE: 2168 CODE:
1678 grp->fd2 = limit; 2169 eio_grp_limit (grp, limit);
1679 aio_grp_feed (grp);
1680 2170
1681void 2171void
1682feed (aio_req grp, SV *callback=&PL_sv_undef) 2172feed (aio_req grp, SV *callback = &PL_sv_undef)
1683 CODE: 2173 CODE:
1684{ 2174{
1685 SvREFCNT_dec (grp->fh2); 2175 SvREFCNT_dec (grp->sv2);
1686 grp->fh2 = newSVsv (callback); 2176 grp->sv2 = newSVsv (callback);
2177 grp->feed = aio_grp_feed;
1687 2178
1688 if (grp->fd2 <= 0) 2179 if (grp->int2 <= 0)
1689 grp->fd2 = 2; 2180 grp->int2 = 2;
1690 2181
1691 aio_grp_feed (grp); 2182 eio_grp_limit (grp, grp->int2);
1692} 2183}
1693 2184

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