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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.84 by root, Sat Oct 28 01:24:19 2006 UTC vs.
Revision 1.244 by root, Tue May 30 22:45:52 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/* number of seconds after which idle threads exit */ 150/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 151/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h"
50 153
51/* used for struct dirent, AIX doesn't provide it */ 154#ifndef makedev
52#ifndef NAME_MAX 155# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDREAD_UNSAFE
74# if __i386 || __x86_64
75# define WORDREAD_UNSAFE 0
76# else
77# define WORDREAD_UNSAFE 1
78# endif 156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
79#endif 159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
80 163
81/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
83 167
84#define dBUF \ 168/*****************************************************************************/
85 char *aio_buf; \ 169
86 LOCK (wrklock); \ 170static void
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 171fiemap (eio_req *req)
88 UNLOCK (wrklock); \ 172{
89 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)
90 return -1; 191 return;
91 192
92enum { 193 req->ptr1 = fiemap;
93 REQ_QUIT,
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104};
105 194
106#define AIO_REQ_KLASS "IO::AIO::REQ" 195 fiemap->fm_start = req->offs;
107#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;
108 199
109typedef struct aio_cb 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
110{ 201 return;
111 struct aio_cb *volatile next;
112 202
113 SV *data, *callback; 203 if (req->int3 >= 0 /* not autosizing */
114 SV *fh, *fh2; 204 || !fiemap->fm_mapped_extents /* no more extents */
115 void *dataptr, *data2ptr; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
116 Stat_t *statdata; 206 goto done;
117 off_t offset;
118 size_t length;
119 ssize_t result;
120 207
121 STRLEN dataoffset; 208 /* else we have to loop -
122 int type; 209 * it would be tempting (actually I tried that first) to just query the
123 int fd, fd2; 210 * number of extents needed, but linux often feels like not returning all
124 int errorno; 211 * extents, without telling us it left any out. this complicates
125 mode_t mode; /* open */ 212 * this quite a bit.
213 */
126 214
127 unsigned char flags; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
128 unsigned char pri;
129 216
130 SV *self; /* the perl counterpart of this request, if any */ 217 for (;;)
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132} aio_cb;
133
134enum {
135 FLAG_CANCELLED = 0x01,
136};
137
138typedef aio_cb *aio_req;
139typedef aio_cb *aio_req_ornot;
140
141enum {
142 PRI_MIN = -4,
143 PRI_MAX = 4,
144
145 DEFAULT_PRI = 0,
146 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148};
149
150static int next_pri = DEFAULT_PRI + PRI_BIAS;
151
152static unsigned int started, idle, wanted;
153
154#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
155# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
156#else
157# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
158#endif
159
160#define LOCK(mutex) pthread_mutex_lock (&(mutex))
161#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
162
163/* worker threads management */
164static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
165
166typedef struct worker {
167 /* locked by wrklock */
168 struct worker *prev, *next;
169
170 pthread_t tid;
171
172 /* locked by reslock, reqlock or wrklock */
173 aio_req req; /* currently processed request */
174 void *dbuf;
175 DIR *dirp;
176} worker;
177
178static worker wrk_first = { &wrk_first, &wrk_first, 0 };
179
180static void worker_clear (worker *wrk)
181{
182 if (wrk->dirp)
183 { 218 {
184 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) */
185 wrk->dirp = 0; 220 char scratch[3072];
186 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
187 222
188 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
189 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
190 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
191 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
192 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
193}
194 228
195static void worker_free (worker *wrk) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
196{
197 wrk->next->prev = wrk->prev;
198 wrk->prev->next = wrk->next;
199
200 free (wrk);
201}
202
203static volatile unsigned int nreqs, nready, npending;
204static volatile unsigned int max_idle = 4;
205static volatile unsigned int max_outstanding = 0xffffffff;
206static int respipe [2];
207
208static pthread_mutex_t reslock = AIO_MUTEX_INIT;
209static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
210static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
211
212#if WORDREAD_UNSAFE
213
214static unsigned int get_nready ()
215{
216 unsigned int retval;
217
218 LOCK (reqlock);
219 retval = nready;
220 UNLOCK (reqlock);
221
222 return retval;
223}
224
225static unsigned int get_npending ()
226{
227 unsigned int retval;
228
229 LOCK (reslock);
230 retval = npending;
231 UNLOCK (reslock);
232
233 return retval;
234}
235
236#else
237
238# define get_nready() nready
239# define get_npending() npending
240
241#endif
242
243/*
244 * a somewhat faster data structure might be nice, but
245 * with 8 priorities this actually needs <20 insns
246 * per shift, the most expensive operation.
247 */
248typedef struct {
249 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
250 int size;
251} reqq;
252
253static reqq req_queue;
254static reqq res_queue;
255
256int reqq_push (reqq *q, aio_req req)
257{
258 int pri = req->pri;
259 req->next = 0;
260
261 if (q->qe[pri])
262 {
263 q->qe[pri]->next = req;
264 q->qe[pri] = req;
265 }
266 else
267 q->qe[pri] = q->qs[pri] = req;
268
269 return q->size++;
270}
271
272aio_req reqq_shift (reqq *q)
273{
274 int pri;
275
276 if (!q->size)
277 return 0; 230 return;
278 231
279 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
280 234
281 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
282 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
283 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
284
285 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
286 { 244 {
287 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
288 q->qe[pri] = 0;
289 246
290 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
291 } 255 }
292 } 256 }
293 257
294 abort (); 258done:
295} 259 req->result = 0;
296 260
297static int poll_cb (int max); 261#else
298static 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
299static void req_free (aio_req req); 282static void req_destroy (aio_req req);
300static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
301 284
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
302/* must be called at most once */ 299/* must be called at most once */
303static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
304{ 302{
305 if (!req->self) 303 if (!req->self)
306 { 304 {
307 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
308 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
309 } 307 }
310 308
311 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
312} 310}
313 311
314static 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)
315{ 320{
316 MAGIC *mg; 321 MAGIC *mg;
317 322
318 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")))
319 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
320 329
321 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
322 331
323 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
324} 333}
325 334
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
326static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
327{ 373{
328 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
329 { 375 {
330 int old_len = grp->length;
331
332 if (grp->fh2 && SvOK (grp->fh2))
333 {
334 dSP; 376 dSP;
335 377
336 ENTER; 378 ENTER;
337 SAVETMPS; 379 SAVETMPS;
338 PUSHMARK (SP); 380 PUSHMARK (SP);
339 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
340 PUTBACK; 382 PUTBACK;
341 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
342 SPAGAIN; 384 SPAGAIN;
343 FREETMPS; 385 FREETMPS;
344 LEAVE; 386 LEAVE;
345 }
346
347 /* stop if no progress has been made */
348 if (old_len == grp->length)
349 {
350 SvREFCNT_dec (grp->fh2);
351 grp->fh2 = 0;
352 break;
353 }
354 } 387 }
355} 388}
356 389
357static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
358{ 392{
359 --grp->length; 393 eio_submit (req);
360 394
361 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
362 aio_grp_feed (grp);
363
364 /* finish, if done */
365 if (!grp->length && grp->fd)
366 { 396 {
367 req_invoke (grp); 397 dSP;
368 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);
369 } 405 }
370} 406}
371 407
408static int
372static void req_invoke (aio_req req) 409req_invoke (eio_req *req)
373{ 410{
374 dSP; 411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
375 413
376 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 414 if (!EIO_CANCELLED (req) && req->callback)
377 { 415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
378 ENTER; 420 ENTER;
379 SAVETMPS; 421 SAVETMPS;
380 PUSHMARK (SP); 422 PUSHMARK (SP);
381 EXTEND (SP, 1); 423 EXTEND (SP, 1);
382 424
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
383 switch (req->type) 438 switch (req->type)
384 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
385 case REQ_READDIR: 444 case EIO_READDIR:
386 { 445 {
387 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
388 447
389 if (req->result >= 0) 448 if (req->result >= 0)
390 { 449 {
391 int i; 450 int i;
392 char *buf = req->data2ptr; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
393 AV *av = newAV (); 453 AV *av = newAV ();
394 454
395 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
396 456
397 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
398 { 458 {
399 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
400 462
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
401 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);
402 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
403 } 493 }
404 494
405 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
406 } 496 }
407 497
408 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))));
409 } 502 }
410 break; 503 break;
411 504
412 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:
413 { 511 {
414 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
415 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));
416 524
417 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
418 PUTBACK;
419 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
420 SPAGAIN;
421 526
422 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
423 540
424 PUSHMARK (SP); 541 PUSHs (rv);
425 XPUSHs (sv_2mortal (fh));
426 } 542 }
543
427 break; 544 break;
428 545
429 case REQ_GROUP: 546 case EIO_GROUP:
430 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
431 548
432 if (req->data) 549 if (req->sv1)
433 { 550 {
434 int i; 551 int i;
435 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
436 553
437 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
438 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
439 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
440 } 557 }
441 break; 558 break;
442 559
443 case REQ_NOP: 560 case EIO_NOP:
444 case REQ_BUSY: 561 case EIO_BUSY:
445 break; 562 break;
446 563
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
447 default: 641 default:
448 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
449 break; 643 break;
450 } 644 }
451 645
452 errno = req->errorno; 646 errno = req->errorno;
453 647
454 PUTBACK; 648 PUTBACK;
455 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
456 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;
457 656
458 FREETMPS; 657 FREETMPS;
459 LEAVE; 658 LEAVE;
659
660 PUTBACK;
460 } 661 }
461 662
462 if (req->grp) 663 return !!SvTRUE (ERRSV);
463 {
464 aio_req grp = req->grp;
465
466 /* unlink request */
467 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
468 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
469
470 if (grp->grp_first == req)
471 grp->grp_first = req->grp_next;
472
473 aio_grp_dec (grp);
474 }
475
476 if (SvTRUE (ERRSV))
477 {
478 req_free (req);
479 croak (0);
480 }
481} 664}
482 665
483static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
484{ 668{
485 if (req->self) 669 if (req->self)
486 { 670 {
487 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
488 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
489 } 673 }
490 674
491 SvREFCNT_dec (req->data);
492 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
493 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
494 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
495 Safefree (req->statdata);
496 680
497 if (req->type == REQ_READDIR)
498 free (req->data2ptr);
499
500 Safefree (req); 681 free (req);
501} 682}
502 683
684static void
503static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
504{ 686{
505 aio_req sub;
506
507 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
508 return; 688 return;
509 689
510 SvREFCNT_dec (grp->fh2); 690 SvREFCNT_dec (grp->sv2);
511 grp->fh2 = 0; 691 grp->sv2 = 0;
512 692
513 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
514 req_cancel (sub);
515} 694}
516 695
517static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
518{ 698{
519 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
520 700 croak ("IO::AIO: unable to initialize result pipe");
521 req_cancel_subs (req);
522} 701}
523 702
524static void *aio_proc(void *arg); 703static void
525 704poll_wait (void)
526static void start_thread (void)
527{ 705{
528 sigset_t fullsigset, oldsigset;
529 pthread_attr_t attr;
530
531 worker *wrk = calloc (1, sizeof (worker));
532
533 if (!wrk)
534 croak ("unable to allocate worker thread data");
535
536 pthread_attr_init (&attr);
537 pthread_attr_setstacksize (&attr, STACKSIZE);
538 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
539#ifdef PTHREAD_SCOPE_PROCESS
540 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
541#endif
542
543 sigfillset (&fullsigset);
544
545 LOCK (wrklock);
546 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
547
548 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
549 {
550 wrk->prev = &wrk_first;
551 wrk->next = wrk_first.next;
552 wrk_first.next->prev = wrk;
553 wrk_first.next = wrk;
554 ++started;
555 }
556 else
557 free (wrk);
558
559 sigprocmask (SIG_SETMASK, &oldsigset, 0);
560 UNLOCK (wrklock);
561}
562
563static void maybe_start_thread ()
564{
565 if (started >= wanted)
566 return;
567
568 /* todo: maybe use idle here, but might be less exact */
569 if ((int)nready <= (int)started - (int)(nreqs - get_nready () - get_npending ()))
570 return;
571
572 start_thread ();
573}
574
575static void req_send (aio_req req)
576{
577 ++nreqs;
578
579 LOCK (reqlock);
580 ++nready;
581 reqq_push (&req_queue, req);
582 pthread_cond_signal (&reqwait);
583 UNLOCK (reqlock);
584
585 maybe_start_thread ();
586}
587
588static void end_thread (void)
589{
590 aio_req req;
591
592 Newz (0, req, 1, aio_cb);
593
594 req->type = REQ_QUIT;
595 req->pri = PRI_MAX + PRI_BIAS;
596
597 LOCK (reqlock);
598 reqq_push (&req_queue, req);
599 pthread_cond_signal (&reqwait);
600 UNLOCK (reqlock);
601
602 LOCK (wrklock);
603 --started;
604 UNLOCK (wrklock);
605}
606
607static void min_parallel (int nthreads)
608{
609 if (wanted < nthreads)
610 wanted = nthreads;
611}
612
613static void max_parallel (int nthreads)
614{
615 if (wanted > nthreads)
616 wanted = nthreads;
617
618 while (started > wanted)
619 end_thread ();
620}
621
622static void poll_wait ()
623{
624 fd_set rfd;
625
626 while (nreqs) 706 while (eio_nreqs ())
627 { 707 {
628 int size; 708 int size;
629 if (WORDREAD_UNSAFE) LOCK (reslock); 709
710 X_LOCK (EIO_POOL->reslock);
630 size = res_queue.size; 711 size = EIO_POOL->res_queue.size;
631 if (WORDREAD_UNSAFE) UNLOCK (reslock); 712 X_UNLOCK (EIO_POOL->reslock);
632 713
633 if (size) 714 if (size)
634 return; 715 return;
635 716
636 maybe_start_thread (); 717 etp_maybe_start_thread (EIO_POOL);
637 718
638 FD_ZERO(&rfd); 719 s_epipe_wait (&respipe);
639 FD_SET(respipe [0], &rfd);
640
641 select (respipe [0] + 1, &rfd, 0, 0, 0);
642 } 720 }
643} 721}
644 722
645static int poll_cb (int max) 723static int
724poll_cb (void)
646{ 725{
647 dSP;
648 int count = 0;
649 int do_croak = 0;
650 aio_req req;
651
652 for (;;) 726 for (;;)
653 { 727 {
654 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)
655 { 836 {
656 maybe_start_thread (); 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
657 839
658 LOCK (reslock); 840 if (SvOK (wdob))
659 req = reqq_shift (&res_queue);
660
661 if (req)
662 { 841 {
663 --npending; 842 *wd = SvAIO_WD (wdob);
664 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
665 if (!res_queue.size)
666 {
667 /* read any signals sent by the worker threads */
668 char buf [32];
669 while (read (respipe [0], buf, 32) == 32)
670 ;
671 }
672 }
673
674 UNLOCK (reslock);
675
676 if (!req)
677 break;
678
679 --nreqs;
680
681 if (req->type == REQ_GROUP && req->length)
682 {
683 req->fd = 1; /* mark request as delayed */
684 continue;
685 } 844 }
686 else 845 else
687 { 846 *wd = EIO_INVALID_WD;
688 if (req->type == REQ_READ)
689 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
690
691 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
692 SvREADONLY_off (req->data);
693
694 if (req->statdata)
695 {
696 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
697 PL_laststatval = req->result;
698 PL_statcache = *(req->statdata);
699 }
700
701 req_invoke (req);
702
703 count++;
704 }
705
706 req_free (req);
707 } 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 }
708 858
709 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)));
710 break; 882 break;
711 883
712 poll_wait (); 884 default:
713 885 req->type = type_path;
714 max = 0; 886 req_set_path1 (req, fh_or_path);
887 break;
715 } 888 }
716
717 return count;
718} 889}
719 890
720static void create_pipe () 891XS(boot_IO__AIO) ecb_cold;
721{
722 if (pipe (respipe))
723 croak ("unable to initialize result pipe");
724 892
725 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
726 croak ("cannot set result pipe to nonblocking mode");
727
728 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
729 croak ("cannot set result pipe to nonblocking mode");
730}
731
732/*****************************************************************************/
733/* work around various missing functions */
734
735#if !HAVE_PREADWRITE
736# define pread aio_pread
737# define pwrite aio_pwrite
738
739/*
740 * make our pread/pwrite safe against themselves, but not against
741 * normal read/write by using a mutex. slows down execution a lot,
742 * but that's your problem, not mine.
743 */
744static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
745
746static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
747{
748 ssize_t res;
749 off_t ooffset;
750
751 LOCK (preadwritelock);
752 ooffset = lseek (fd, 0, SEEK_CUR);
753 lseek (fd, offset, SEEK_SET);
754 res = read (fd, buf, count);
755 lseek (fd, ooffset, SEEK_SET);
756 UNLOCK (preadwritelock);
757
758 return res;
759}
760
761static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
762{
763 ssize_t res;
764 off_t ooffset;
765
766 LOCK (preadwritelock);
767 ooffset = lseek (fd, 0, SEEK_CUR);
768 lseek (fd, offset, SEEK_SET);
769 res = write (fd, buf, count);
770 lseek (fd, offset, SEEK_SET);
771 UNLOCK (preadwritelock);
772
773 return res;
774}
775#endif
776
777#if !HAVE_FDATASYNC
778# define fdatasync fsync
779#endif
780
781#if !HAVE_READAHEAD
782# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
783
784static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
785{
786 dBUF;
787
788 while (count > 0)
789 {
790 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
791
792 pread (fd, aio_buf, len, offset);
793 offset += len;
794 count -= len;
795 }
796
797 errno = 0;
798}
799
800#endif
801
802#if !HAVE_READDIR_R
803# define readdir_r aio_readdir_r
804
805static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
806
807static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
808{
809 struct dirent *e;
810 int errorno;
811
812 LOCK (readdirlock);
813
814 e = readdir (dirp);
815 errorno = errno;
816
817 if (e)
818 {
819 *res = ent;
820 strcpy (ent->d_name, e->d_name);
821 }
822 else
823 *res = 0;
824
825 UNLOCK (readdirlock);
826
827 errno = errorno;
828 return e ? 0 : -1;
829}
830#endif
831
832/* sendfile always needs emulation */
833static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
834{
835 ssize_t res;
836
837 if (!count)
838 return 0;
839
840#if HAVE_SENDFILE
841# if __linux
842 res = sendfile (ofd, ifd, &offset, count);
843
844# elif __freebsd
845 /*
846 * Of course, the freebsd sendfile is a dire hack with no thoughts
847 * wasted on making it similar to other I/O functions.
848 */
849 {
850 off_t sbytes;
851 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
852
853 if (res < 0 && sbytes)
854 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
855 res = sbytes;
856 }
857
858# elif __hpux
859 res = sendfile (ofd, ifd, offset, count, 0, 0);
860
861# elif __solaris
862 {
863 struct sendfilevec vec;
864 size_t sbytes;
865
866 vec.sfv_fd = ifd;
867 vec.sfv_flag = 0;
868 vec.sfv_off = offset;
869 vec.sfv_len = count;
870
871 res = sendfilev (ofd, &vec, 1, &sbytes);
872
873 if (res < 0 && sbytes)
874 res = sbytes;
875 }
876
877# endif
878#else
879 res = -1;
880 errno = ENOSYS;
881#endif
882
883 if (res < 0
884 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
885#if __solaris
886 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
887#endif
888 )
889 )
890 {
891 /* emulate sendfile. this is a major pain in the ass */
892 dBUF;
893
894 res = 0;
895
896 while (count)
897 {
898 ssize_t cnt;
899
900 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
901
902 if (cnt <= 0)
903 {
904 if (cnt && !res) res = -1;
905 break;
906 }
907
908 cnt = write (ofd, aio_buf, cnt);
909
910 if (cnt <= 0)
911 {
912 if (cnt && !res) res = -1;
913 break;
914 }
915
916 offset += cnt;
917 res += cnt;
918 count -= cnt;
919 }
920 }
921
922 return res;
923}
924
925/* read a full directory */
926static void scandir_ (aio_req req, worker *self)
927{
928 DIR *dirp;
929 union
930 {
931 struct dirent d;
932 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
933 } *u;
934 struct dirent *entp;
935 char *name, *names;
936 int memlen = 4096;
937 int memofs = 0;
938 int res = 0;
939 int errorno;
940
941 LOCK (wrklock);
942 self->dirp = dirp = opendir (req->dataptr);
943 self->dbuf = u = malloc (sizeof (*u));
944 req->data2ptr = names = malloc (memlen);
945 UNLOCK (wrklock);
946
947 if (dirp && u && names)
948 for (;;)
949 {
950 errno = 0;
951 readdir_r (dirp, &u->d, &entp);
952
953 if (!entp)
954 break;
955
956 name = entp->d_name;
957
958 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
959 {
960 int len = strlen (name) + 1;
961
962 res++;
963
964 while (memofs + len > memlen)
965 {
966 memlen *= 2;
967 LOCK (wrklock);
968 req->data2ptr = names = realloc (names, memlen);
969 UNLOCK (wrklock);
970
971 if (!names)
972 break;
973 }
974
975 memcpy (names + memofs, name, len);
976 memofs += len;
977 }
978 }
979
980 if (errno)
981 res = -1;
982
983 req->result = res;
984}
985
986/*****************************************************************************/
987
988static void *aio_proc (void *thr_arg)
989{
990 aio_req req;
991 struct timespec ts;
992 worker *self = (worker *)thr_arg;
993
994 /* try to distribute timeouts somewhat evenly */
995 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
996 * (1000000000UL / 1024UL);
997
998 for (;;)
999 {
1000 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1001
1002 LOCK (reqlock);
1003
1004 for (;;)
1005 {
1006 self->req = req = reqq_shift (&req_queue);
1007
1008 if (req)
1009 break;
1010
1011 ++idle;
1012
1013 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1014 == ETIMEDOUT)
1015 {
1016 if (idle > max_idle)
1017 {
1018 --idle;
1019 UNLOCK (reqlock);
1020 LOCK (wrklock);
1021 --started;
1022 UNLOCK (wrklock);
1023 goto quit;
1024 }
1025
1026 /* we are allowed to idle, so do so without any timeout */
1027 pthread_cond_wait (&reqwait, &reqlock);
1028 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1029 }
1030
1031 --idle;
1032 }
1033
1034 --nready;
1035
1036 UNLOCK (reqlock);
1037
1038 errno = 0; /* strictly unnecessary */
1039
1040 if (!(req->flags & FLAG_CANCELLED))
1041 switch (req->type)
1042 {
1043 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1044 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1045
1046 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1047 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1048
1049 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1050 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1051 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1052
1053 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1054 case REQ_CLOSE: req->result = close (req->fd); break;
1055 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1056 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1057 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1058 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1059 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1060 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1061
1062 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1063 case REQ_FSYNC: req->result = fsync (req->fd); break;
1064 case REQ_READDIR: scandir_ (req, self); break;
1065
1066 case REQ_BUSY:
1067 {
1068 struct timeval tv;
1069
1070 tv.tv_sec = req->fd;
1071 tv.tv_usec = req->fd2;
1072
1073 req->result = select (0, 0, 0, 0, &tv);
1074 }
1075
1076 case REQ_GROUP:
1077 case REQ_NOP:
1078 break;
1079
1080 case REQ_QUIT:
1081 goto quit;
1082
1083 default:
1084 req->result = ENOSYS;
1085 break;
1086 }
1087
1088 req->errorno = errno;
1089
1090 LOCK (reslock);
1091
1092 ++npending;
1093
1094 if (!reqq_push (&res_queue, req))
1095 /* write a dummy byte to the pipe so fh becomes ready */
1096 write (respipe [1], &respipe, 1);
1097
1098 self->req = 0;
1099 worker_clear (self);
1100
1101 UNLOCK (reslock);
1102 }
1103
1104quit:
1105 LOCK (wrklock);
1106 worker_free (self);
1107 UNLOCK (wrklock);
1108
1109 return 0;
1110}
1111
1112/*****************************************************************************/
1113
1114static void atfork_prepare (void)
1115{
1116 LOCK (wrklock);
1117 LOCK (reqlock);
1118 LOCK (reslock);
1119#if !HAVE_PREADWRITE
1120 LOCK (preadwritelock);
1121#endif
1122#if !HAVE_READDIR_R
1123 LOCK (readdirlock);
1124#endif
1125}
1126
1127static void atfork_parent (void)
1128{
1129#if !HAVE_READDIR_R
1130 UNLOCK (readdirlock);
1131#endif
1132#if !HAVE_PREADWRITE
1133 UNLOCK (preadwritelock);
1134#endif
1135 UNLOCK (reslock);
1136 UNLOCK (reqlock);
1137 UNLOCK (wrklock);
1138}
1139
1140static void atfork_child (void)
1141{
1142 aio_req prv;
1143
1144 while (prv = reqq_shift (&req_queue))
1145 req_free (prv);
1146
1147 while (prv = reqq_shift (&res_queue))
1148 req_free (prv);
1149
1150 while (wrk_first.next != &wrk_first)
1151 {
1152 worker *wrk = wrk_first.next;
1153
1154 if (wrk->req)
1155 req_free (wrk->req);
1156
1157 worker_clear (wrk);
1158 worker_free (wrk);
1159 }
1160
1161 started = 0;
1162 idle = 0;
1163 nreqs = 0;
1164 nready = 0;
1165 npending = 0;
1166
1167 close (respipe [0]);
1168 close (respipe [1]);
1169 create_pipe ();
1170
1171 atfork_parent ();
1172}
1173
1174#define dREQ \
1175 aio_req req; \
1176 int req_pri = next_pri; \
1177 next_pri = DEFAULT_PRI + PRI_BIAS; \
1178 \
1179 if (SvOK (callback) && !SvROK (callback)) \
1180 croak ("callback must be undef or of reference type"); \
1181 \
1182 Newz (0, req, 1, aio_cb); \
1183 if (!req) \
1184 croak ("out of memory during aio_req allocation"); \
1185 \
1186 req->callback = newSVsv (callback); \
1187 req->pri = req_pri
1188
1189#define REQ_SEND \
1190 req_send (req); \
1191 \
1192 if (GIMME_V != G_VOID) \
1193 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1194
1195MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
1196 894
1197PROTOTYPES: ENABLE 895PROTOTYPES: ENABLE
1198 896
1199BOOT: 897BOOT:
1200{ 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 const_niv (MADV_FREE , POSIX_MADV_FREE)
930
931 /* the second block will be 0 when missing */
932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
939
940 const_iv (O_ASYNC)
941 const_iv (O_DIRECT)
942 const_iv (O_NOATIME)
943
944 const_iv (O_CLOEXEC)
945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_iv (ST_RDONLY)
969 const_iv (ST_NOSUID)
970 const_iv (ST_NODEV)
971 const_iv (ST_NOEXEC)
972 const_iv (ST_SYNCHRONOUS)
973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
980
981 const_iv (PROT_NONE)
982 const_iv (PROT_EXEC)
983 const_iv (PROT_READ)
984 const_iv (PROT_WRITE)
985
986 const_iv (MAP_PRIVATE)
987 const_iv (MAP_SHARED)
988 const_iv (MAP_FIXED)
989 const_iv (MAP_ANONYMOUS)
990
991 /* linuxish */
992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
1000
1001 const_iv (FIFREEZE)
1002 const_iv (FITHAW)
1003 const_iv (FITRIM)
1004 const_iv (FICLONE)
1005 const_iv (FICLONERANGE)
1006 const_iv (FIDEDUPERANGE)
1007
1008 const_iv (FS_IOC_GETFLAGS)
1009 const_iv (FS_IOC_SETFLAGS)
1010 const_iv (FS_IOC_GETVERSION)
1011 const_iv (FS_IOC_SETVERSION)
1012 const_iv (FS_IOC_FIEMAP)
1013 const_iv (FS_IOC_FSGETXATTR)
1014 const_iv (FS_IOC_FSSETXATTR)
1015 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1016 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1017 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1018
1019 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1020
1021 const_iv (FS_SECRM_FL)
1022 const_iv (FS_UNRM_FL)
1023 const_iv (FS_COMPR_FL)
1024 const_iv (FS_SYNC_FL)
1025 const_iv (FS_IMMUTABLE_FL)
1026 const_iv (FS_APPEND_FL)
1027 const_iv (FS_NODUMP_FL)
1028 const_iv (FS_NOATIME_FL)
1029 const_iv (FS_DIRTY_FL)
1030 const_iv (FS_COMPRBLK_FL)
1031 const_iv (FS_NOCOMP_FL)
1032 const_iv (FS_ENCRYPT_FL)
1033 const_iv (FS_BTREE_FL)
1034 const_iv (FS_INDEX_FL)
1035 const_iv (FS_JOURNAL_DATA_FL)
1036 const_iv (FS_NOTAIL_FL)
1037 const_iv (FS_DIRSYNC_FL)
1038 const_iv (FS_TOPDIR_FL)
1039 const_iv (FS_FL_USER_MODIFIABLE)
1040
1041 const_iv (FS_XFLAG_REALTIME)
1042 const_iv (FS_XFLAG_PREALLOC)
1043 const_iv (FS_XFLAG_IMMUTABLE)
1044 const_iv (FS_XFLAG_APPEND)
1045 const_iv (FS_XFLAG_SYNC)
1046 const_iv (FS_XFLAG_NOATIME)
1047 const_iv (FS_XFLAG_NODUMP)
1048 const_iv (FS_XFLAG_RTINHERIT)
1049 const_iv (FS_XFLAG_PROJINHERIT)
1050 const_iv (FS_XFLAG_NOSYMLINKS)
1051 const_iv (FS_XFLAG_EXTSIZE)
1052 const_iv (FS_XFLAG_EXTSZINHERIT)
1053 const_iv (FS_XFLAG_NODEFRAG)
1054 const_iv (FS_XFLAG_FILESTREAM)
1055 const_iv (FS_XFLAG_DAX)
1056 const_iv (FS_XFLAG_HASATTR)
1057
1058 const_iv (FIEMAP_FLAG_SYNC)
1059 const_iv (FIEMAP_FLAG_XATTR)
1060 const_iv (FIEMAP_FLAGS_COMPAT)
1061 const_iv (FIEMAP_EXTENT_LAST)
1062 const_iv (FIEMAP_EXTENT_UNKNOWN)
1063 const_iv (FIEMAP_EXTENT_DELALLOC)
1064 const_iv (FIEMAP_EXTENT_ENCODED)
1065 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1066 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1067 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1068 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1069 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1070 const_iv (FIEMAP_EXTENT_MERGED)
1071 const_iv (FIEMAP_EXTENT_SHARED)
1072
1073 const_iv (SPLICE_F_MOVE)
1074 const_iv (SPLICE_F_NONBLOCK)
1075 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT)
1077
1078 /* these are libeio constants, and are independent of gendef0 */
1079 const_eio (SEEK_SET)
1080 const_eio (SEEK_CUR)
1081 const_eio (SEEK_END)
1082
1083 const_eio (MCL_FUTURE)
1084 const_eio (MCL_CURRENT)
1085
1086 const_eio (MS_ASYNC)
1087 const_eio (MS_INVALIDATE)
1088 const_eio (MS_SYNC)
1089
1090 const_eio (MT_MODIFY)
1091
1092 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1093 const_eio (SYNC_FILE_RANGE_WRITE)
1094 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1095
1096 const_eio (FALLOC_FL_KEEP_SIZE)
1097 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE)
1100
1101 const_eio (READDIR_DENTS)
1102 const_eio (READDIR_DIRS_FIRST)
1103 const_eio (READDIR_STAT_ORDER)
1104 const_eio (READDIR_FOUND_UNKNOWN)
1105
1106 const_eio (DT_UNKNOWN)
1107 const_eio (DT_FIFO)
1108 const_eio (DT_CHR)
1109 const_eio (DT_DIR)
1110 const_eio (DT_BLK)
1111 const_eio (DT_REG)
1112 const_eio (DT_LNK)
1113 const_eio (DT_SOCK)
1114 const_eio (DT_WHT)
1115 };
1116
1201 HV *stash = gv_stashpv ("IO::AIO", 1); 1117 aio_stash = gv_stashpv ("IO::AIO" , 1);
1118 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1119 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1120 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1202 1121
1203 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1122 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1204 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1123 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1205 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1206 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1207 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1208 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1209 1124
1210 create_pipe (); 1125 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1211 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1212}
1213 1126
1127 reinit ();
1128}
1129
1214void 1130void
1215min_parallel (int nthreads) 1131reinit ()
1216 PROTOTYPE: $ 1132 PROTOTYPE:
1217 1133
1218void 1134void
1219max_parallel (int nthreads) 1135max_poll_reqs (unsigned int nreqs)
1220 PROTOTYPE: $
1221
1222int
1223max_outstanding (int maxreqs)
1224 PROTOTYPE: $ 1136 PROTOTYPE: $
1225 CODE: 1137 CODE:
1226 RETVAL = max_outstanding; 1138 eio_set_max_poll_reqs (nreqs);
1139
1140void
1141max_poll_time (double nseconds)
1142 PROTOTYPE: $
1143 CODE:
1144 eio_set_max_poll_time (nseconds);
1145
1146void
1147min_parallel (unsigned int nthreads)
1148 PROTOTYPE: $
1149 CODE:
1150 eio_set_min_parallel (nthreads);
1151
1152void
1153max_parallel (unsigned int nthreads)
1154 PROTOTYPE: $
1155 CODE:
1156 eio_set_max_parallel (nthreads);
1157
1158void
1159max_idle (unsigned int nthreads)
1160 PROTOTYPE: $
1161 CODE:
1162 eio_set_max_idle (nthreads);
1163
1164void
1165idle_timeout (unsigned int seconds)
1166 PROTOTYPE: $
1167 CODE:
1168 eio_set_idle_timeout (seconds);
1169
1170void
1171max_outstanding (unsigned int maxreqs)
1172 PROTOTYPE: $
1173 CODE:
1227 max_outstanding = maxreqs; 1174 max_outstanding = maxreqs;
1228 OUTPUT:
1229 RETVAL
1230 1175
1231void 1176void
1232aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1177aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1233 SV * pathname
1234 int flags
1235 int mode
1236 SV * callback
1237 PROTOTYPE: $$$;$
1238 PPCODE: 1178 PPCODE:
1239{ 1179{
1240 dREQ; 1180 dREQ;
1241 1181
1242 req->type = REQ_OPEN; 1182 req->type = EIO_WD_OPEN;
1243 req->data = newSVsv (pathname); 1183 req_set_path1 (req, pathname);
1244 req->dataptr = SvPVbyte_nolen (req->data);
1245 req->fd = flags;
1246 req->mode = mode;
1247 1184
1248 REQ_SEND; 1185 REQ_SEND;
1249} 1186}
1250 1187
1251void 1188void
1189aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1190 PPCODE:
1191{
1192 dREQ;
1193
1194 req->type = EIO_OPEN;
1195 req_set_path1 (req, pathname);
1196 req->int1 = flags;
1197 req->int2 = mode;
1198
1199 REQ_SEND;
1200}
1201
1202void
1252aio_close (fh,callback=&PL_sv_undef) 1203aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1253 SV * fh
1254 SV * callback
1255 PROTOTYPE: $;$
1256 ALIAS: 1204 ALIAS:
1257 aio_close = REQ_CLOSE
1258 aio_fsync = REQ_FSYNC 1205 aio_fsync = EIO_FSYNC
1259 aio_fdatasync = REQ_FDATASYNC 1206 aio_fdatasync = EIO_FDATASYNC
1207 aio_syncfs = EIO_SYNCFS
1260 PPCODE: 1208 PPCODE:
1261{ 1209{
1210 int fd = s_fileno_croak (fh, 0);
1262 dREQ; 1211 dREQ;
1263 1212
1264 req->type = ix; 1213 req->type = ix;
1265 req->fh = newSVsv (fh); 1214 req->sv1 = newSVsv (fh);
1266 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1215 req->int1 = fd;
1267 1216
1268 REQ_SEND (req); 1217 REQ_SEND;
1269} 1218}
1270 1219
1271void 1220void
1221aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1222 PPCODE:
1223{
1224 int fd = s_fileno_croak (fh, 0);
1225 dREQ;
1226
1227 req->type = EIO_SYNC_FILE_RANGE;
1228 req->sv1 = newSVsv (fh);
1229 req->int1 = fd;
1230 req->offs = offset;
1231 req->size = nbytes;
1232 req->int2 = flags;
1233
1234 REQ_SEND;
1235}
1236
1237void
1238aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1239 PPCODE:
1240{
1241 int fd = s_fileno_croak (fh, 0);
1242 dREQ;
1243
1244 req->type = EIO_FALLOCATE;
1245 req->sv1 = newSVsv (fh);
1246 req->int1 = fd;
1247 req->int2 = mode;
1248 req->offs = offset;
1249 req->size = len;
1250
1251 REQ_SEND;
1252}
1253
1254void
1255aio_close (SV *fh, SV *callback = &PL_sv_undef)
1256 PPCODE:
1257{
1258 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1259 int fd = s_fileno_croak (fh, 0);
1260 dREQ;
1261
1262 if (expect_false (close_fd < 0))
1263 {
1264 int pipefd [2];
1265
1266 if (
1267#ifdef _WIN32
1268 _pipe (pipefd, 1, _O_BINARY) < 0
1269#else
1270 pipe (pipefd) < 0
1271 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1272#endif
1273 || close (pipefd [1]) < 0
1274 )
1275 abort (); /*D*/
1276
1277 close_fd = pipefd [0];
1278 }
1279
1280 req->type = EIO_DUP2;
1281 req->int1 = close_fd;
1282 req->sv2 = newSVsv (fh);
1283 req->int2 = fd;
1284
1285 REQ_SEND;
1286}
1287
1288void
1289aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1290 PPCODE:
1291{
1292 int fd = s_fileno_croak (fh, 0);
1293 dREQ;
1294
1295 req->type = EIO_SEEK;
1296 req->sv1 = newSVsv (fh);
1297 req->int1 = fd;
1298 req->offs = SvVAL64 (offset);
1299 req->int2 = whence;
1300
1301 REQ_SEND;
1302}
1303
1304void
1272aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1305aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1273 SV * fh
1274 UV offset
1275 UV length
1276 SV * data
1277 UV dataoffset
1278 SV * callback
1279 ALIAS: 1306 ALIAS:
1280 aio_read = REQ_READ 1307 aio_read = EIO_READ
1281 aio_write = REQ_WRITE 1308 aio_write = EIO_WRITE
1282 PROTOTYPE: $$$$$;$
1283 PPCODE: 1309 PPCODE:
1284{ 1310{
1285 aio_req req;
1286 STRLEN svlen; 1311 STRLEN svlen;
1312 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1287 char *svptr = SvPVbyte (data, svlen); 1313 char *svptr = SvPVbyte (data, svlen);
1288 1314 UV len = SvUV (length);
1289 SvUPGRADE (data, SVt_PV);
1290 SvPOK_on (data);
1291 1315
1292 if (dataoffset < 0) 1316 if (dataoffset < 0)
1293 dataoffset += svlen; 1317 dataoffset += svlen;
1294 1318
1295 if (dataoffset < 0 || dataoffset > svlen) 1319 if (dataoffset < 0 || dataoffset > svlen)
1296 croak ("data offset outside of string"); 1320 croak ("dataoffset outside of data scalar");
1297 1321
1298 if (ix == REQ_WRITE) 1322 if (ix == EIO_WRITE)
1299 { 1323 {
1300 /* write: check length and adjust. */ 1324 /* write: check length and adjust. */
1301 if (length < 0 || length + dataoffset > svlen) 1325 if (!SvOK (length) || len + dataoffset > svlen)
1302 length = svlen - dataoffset; 1326 len = svlen - dataoffset;
1303 } 1327 }
1304 else 1328 else
1305 { 1329 {
1306 /* read: grow scalar as necessary */ 1330 /* read: check type and grow scalar as necessary */
1331 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1307 svptr = SvGROW (data, length + dataoffset); 1332 svptr = sv_grow (data, len + dataoffset + 1);
1333 else if (SvCUR (data) < len + dataoffset)
1334 croak ("length + dataoffset outside of scalar, and cannot grow");
1308 } 1335 }
1309
1310 if (length < 0)
1311 croak ("length must not be negative");
1312 1336
1313 { 1337 {
1314 dREQ; 1338 dREQ;
1315 1339
1316 req->type = ix; 1340 req->type = ix;
1317 req->fh = newSVsv (fh); 1341 req->sv1 = newSVsv (fh);
1318 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1342 req->int1 = fd;
1319 : IoOFP (sv_2io (fh))); 1343 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1320 req->offset = offset; 1344 req->size = len;
1321 req->length = length;
1322 req->data = SvREFCNT_inc (data); 1345 req->sv2 = SvREFCNT_inc (data);
1323 req->dataptr = (char *)svptr + dataoffset; 1346 req->ptr2 = (char *)svptr + dataoffset;
1347 req->stroffset = dataoffset;
1324 1348
1325 if (!SvREADONLY (data)) 1349 if (!SvREADONLY (data))
1326 { 1350 {
1327 SvREADONLY_on (data); 1351 SvREADONLY_on (data);
1328 req->data2ptr = (void *)data; 1352 req->flags |= FLAG_SV2_RO_OFF;
1329 } 1353 }
1330 1354
1331 REQ_SEND; 1355 REQ_SEND;
1332 } 1356 }
1333} 1357}
1334 1358
1335void 1359void
1336aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1360aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1337 SV * out_fh 1361 ALIAS:
1338 SV * in_fh 1362 aio_ioctl = EIO_IOCTL
1339 UV in_offset 1363 aio_fcntl = EIO_FCNTL
1340 UV length
1341 SV * callback
1342 PROTOTYPE: $$$$;$
1343 PPCODE: 1364 PPCODE:
1344{ 1365{
1345 dREQ; 1366 int fd = s_fileno_croak (fh, 0);
1367 char *svptr;
1346 1368
1347 req->type = REQ_SENDFILE; 1369 if (SvPOK (arg) || !SvNIOK (arg))
1348 req->fh = newSVsv (out_fh);
1349 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1350 req->fh2 = newSVsv (in_fh);
1351 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1352 req->offset = in_offset;
1353 req->length = length;
1354
1355 REQ_SEND;
1356}
1357
1358void
1359aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1360 SV * fh
1361 UV offset
1362 IV length
1363 SV * callback
1364 PROTOTYPE: $$$;$
1365 PPCODE:
1366{
1367 dREQ;
1368
1369 req->type = REQ_READAHEAD;
1370 req->fh = newSVsv (fh);
1371 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1372 req->offset = offset;
1373 req->length = length;
1374
1375 REQ_SEND;
1376}
1377
1378void
1379aio_stat (fh_or_path,callback=&PL_sv_undef)
1380 SV * fh_or_path
1381 SV * callback
1382 ALIAS:
1383 aio_stat = REQ_STAT
1384 aio_lstat = REQ_LSTAT
1385 PPCODE:
1386{
1387 dREQ;
1388
1389 New (0, req->statdata, 1, Stat_t);
1390 if (!req->statdata)
1391 { 1370 {
1392 req_free (req); 1371 STRLEN svlen;
1393 croak ("out of memory during aio_req->statdata allocation"); 1372 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1394 } 1373#ifdef IOCPARM_LEN
1374 STRLEN need = IOCPARM_LEN (request);
1375#else
1376 STRLEN need = 256;
1377#endif
1395 1378
1396 if (SvPOK (fh_or_path)) 1379 if (svlen < need)
1397 { 1380 svptr = SvGROW (arg, need);
1398 req->type = ix;
1399 req->data = newSVsv (fh_or_path);
1400 req->dataptr = SvPVbyte_nolen (req->data);
1401 } 1381 }
1402 else 1382 else
1383 svptr = (char *)SvIV (arg);
1384
1403 { 1385 {
1386 dREQ;
1387
1404 req->type = REQ_FSTAT; 1388 req->type = ix;
1405 req->fh = newSVsv (fh_or_path); 1389 req->sv1 = newSVsv (fh);
1406 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1390 req->int1 = fd;
1391 req->int2 = (long)request;
1392 req->sv2 = SvREFCNT_inc (arg);
1393 req->ptr2 = svptr;
1394
1395 REQ_SEND;
1407 } 1396 }
1397}
1398
1399void
1400aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1401 ALIAS:
1402 aio_readlink = EIO_READLINK
1403 aio_realpath = EIO_REALPATH
1404 PPCODE:
1405{
1406 dREQ;
1407
1408 req->type = ix;
1409 req_set_path1 (req, pathname);
1408 1410
1409 REQ_SEND; 1411 REQ_SEND;
1410} 1412}
1411 1413
1412void 1414void
1413aio_unlink (pathname,callback=&PL_sv_undef) 1415aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1414 SV * pathname 1416 PPCODE:
1415 SV * callback 1417{
1418 int ifd = s_fileno_croak (in_fh , 0);
1419 int ofd = s_fileno_croak (out_fh, 1);
1420 dREQ;
1421
1422 req->type = EIO_SENDFILE;
1423 req->sv1 = newSVsv (out_fh);
1424 req->int1 = ofd;
1425 req->sv2 = newSVsv (in_fh);
1426 req->int2 = ifd;
1427 req->offs = in_offset;
1428 req->size = length;
1429
1430 REQ_SEND;
1431}
1432
1433void
1434aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1435 PPCODE:
1436{
1437 int fd = s_fileno_croak (fh, 0);
1438 dREQ;
1439
1440 req->type = EIO_READAHEAD;
1441 req->sv1 = newSVsv (fh);
1442 req->int1 = fd;
1443 req->offs = offset;
1444 req->size = length;
1445
1446 REQ_SEND;
1447}
1448
1449void
1450aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1416 ALIAS: 1451 ALIAS:
1452 aio_stat = EIO_STAT
1453 aio_lstat = EIO_LSTAT
1454 aio_statvfs = EIO_STATVFS
1455 PPCODE:
1456{
1457 dREQ;
1458
1459 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1460
1461 REQ_SEND;
1462}
1463
1464UV
1465major (UV dev)
1466 ALIAS:
1467 minor = 1
1468 CODE:
1469 RETVAL = ix ? minor (dev) : major (dev);
1470 OUTPUT:
1471 RETVAL
1472
1473UV
1474makedev (UV maj, UV min)
1475 CODE:
1476 RETVAL = makedev (maj, min);
1477 OUTPUT:
1478 RETVAL
1479
1480void
1481aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1482 PPCODE:
1483{
1484 dREQ;
1485
1486 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1487 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1488 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1489
1490 REQ_SEND;
1491}
1492
1493void
1494aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1495 PPCODE:
1496{
1497 dREQ;
1498
1499 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1500 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1501
1502 REQ_SEND;
1503}
1504
1505void
1506aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1507 PPCODE:
1508{
1509 dREQ;
1510
1511 req->int2 = mode;
1512 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1513
1514 REQ_SEND;
1515}
1516
1517void
1518aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1519 PPCODE:
1520{
1521 dREQ;
1522
1523 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1524 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1525 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1526
1527 REQ_SEND;
1528}
1529
1530void
1531aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1532 PPCODE:
1533{
1534 dREQ;
1535
1536 req->type = EIO_READDIR;
1537 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1538
1539 if (flags & EIO_READDIR_DENTS)
1540 req->int1 |= EIO_READDIR_CUSTOM2;
1541
1542 req_set_path1 (req, pathname);
1543
1544 REQ_SEND;
1545}
1546
1547void
1548aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1549 PPCODE:
1550{
1551 dREQ;
1552
1553 req->type = EIO_MKDIR;
1554 req->int2 = mode;
1555 req_set_path1 (req, pathname);
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1562 ALIAS:
1417 aio_unlink = REQ_UNLINK 1563 aio_unlink = EIO_UNLINK
1418 aio_rmdir = REQ_RMDIR 1564 aio_rmdir = EIO_RMDIR
1419 aio_readdir = REQ_READDIR 1565 aio_readdir = EIO_READDIR
1420 PPCODE: 1566 PPCODE:
1421{ 1567{
1422 dREQ; 1568 dREQ;
1423 1569
1424 req->type = ix; 1570 req->type = ix;
1425 req->data = newSVsv (pathname); 1571 req_set_path1 (req, pathname);
1426 req->dataptr = SvPVbyte_nolen (req->data); 1572
1427
1428 REQ_SEND; 1573 REQ_SEND;
1429} 1574}
1430 1575
1431void 1576void
1432aio_link (oldpath,newpath,callback=&PL_sv_undef) 1577aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1433 SV * oldpath
1434 SV * newpath
1435 SV * callback
1436 ALIAS: 1578 ALIAS:
1437 aio_link = REQ_LINK 1579 aio_link = EIO_LINK
1438 aio_symlink = REQ_SYMLINK 1580 aio_symlink = EIO_SYMLINK
1439 aio_rename = REQ_RENAME 1581 aio_rename = EIO_RENAME
1440 PPCODE: 1582 PPCODE:
1441{ 1583{
1584 eio_wd wd2 = 0;
1442 dREQ; 1585 dREQ;
1443 1586
1444 req->type = ix; 1587 req->type = ix;
1445 req->fh = newSVsv (oldpath); 1588 req_set_path1 (req, oldpath);
1446 req->data2ptr = SvPVbyte_nolen (req->fh); 1589 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1447 req->data = newSVsv (newpath); 1590 req->int3 = (long)wd2;
1448 req->dataptr = SvPVbyte_nolen (req->data);
1449 1591
1450 REQ_SEND; 1592 REQ_SEND;
1451} 1593}
1452 1594
1453void 1595void
1454aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1596aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1455 SV * pathname
1456 SV * callback
1457 UV mode
1458 UV dev
1459 PPCODE: 1597 PPCODE:
1460{ 1598{
1461 dREQ; 1599 dREQ;
1462 1600
1463 req->type = REQ_MKNOD; 1601 req->type = EIO_MKNOD;
1464 req->data = newSVsv (pathname);
1465 req->dataptr = SvPVbyte_nolen (req->data);
1466 req->mode = (mode_t)mode; 1602 req->int2 = (mode_t)mode;
1467 req->offset = dev; 1603 req->offs = dev;
1604 req_set_path1 (req, pathname);
1468 1605
1469 REQ_SEND; 1606 REQ_SEND;
1470} 1607}
1471 1608
1472void 1609void
1610aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1611 ALIAS:
1612 aio_mtouch = EIO_MTOUCH
1613 aio_msync = EIO_MSYNC
1614 PPCODE:
1615{
1616 STRLEN svlen;
1617 char *svptr = SvPVbyte (data, svlen);
1618 UV len = SvUV (length);
1619
1620 if (flags < 0)
1621 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1622
1623 if (offset < 0)
1624 offset += svlen;
1625
1626 if (offset < 0 || offset > svlen)
1627 croak ("offset outside of scalar");
1628
1629 if (!SvOK (length) || len + offset > svlen)
1630 len = svlen - offset;
1631
1632 {
1633 dREQ;
1634
1635 req->type = ix;
1636 req->sv2 = SvREFCNT_inc (data);
1637 req->ptr2 = (char *)svptr + offset;
1638 req->size = len;
1639 req->int1 = flags;
1640
1641 REQ_SEND;
1642 }
1643}
1644
1645void
1646aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1647 PPCODE:
1648{
1649 STRLEN svlen;
1650 char *svptr = SvPVbyte (data, svlen);
1651 UV len = SvUV (length);
1652
1653 if (offset < 0)
1654 offset += svlen;
1655
1656 if (offset < 0 || offset > svlen)
1657 croak ("offset outside of scalar");
1658
1659 if (!SvOK (length) || len + offset > svlen)
1660 len = svlen - offset;
1661
1662 {
1663 dREQ;
1664
1665 req->type = EIO_MLOCK;
1666 req->sv2 = SvREFCNT_inc (data);
1667 req->ptr2 = (char *)svptr + offset;
1668 req->size = len;
1669
1670 REQ_SEND;
1671 }
1672}
1673
1674void
1675aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1676 PPCODE:
1677{
1678 dREQ;
1679
1680 req->type = EIO_MLOCKALL;
1681 req->int1 = flags;
1682
1683 REQ_SEND;
1684}
1685
1686void
1687aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1688 PPCODE:
1689{
1690 int fd = s_fileno_croak (fh, 0);
1691 dREQ;
1692
1693 req->type = EIO_CUSTOM;
1694 req->sv1 = newSVsv (fh);
1695 req->int1 = fd;
1696
1697 req->feed = fiemap;
1698#if HAVE_FIEMAP
1699 /* keep our fingers crossed that the next two types are 64 bit */
1700 req->offs = start;
1701 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1702 req->int2 = flags;
1703 req->int3 = SvOK (count) ? SvIV (count) : -1;
1704#endif
1705
1706 REQ_SEND;
1707}
1708
1709void
1473aio_busy (delay,callback=&PL_sv_undef) 1710aio_busy (double delay, SV *callback = &PL_sv_undef)
1474 double delay
1475 SV * callback
1476 PPCODE: 1711 PPCODE:
1477{ 1712{
1478 dREQ; 1713 dREQ;
1479 1714
1480 req->type = REQ_BUSY; 1715 req->type = EIO_BUSY;
1481 req->fd = delay < 0. ? 0 : delay; 1716 req->nv1 = delay < 0. ? 0. : delay;
1482 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1483 1717
1484 REQ_SEND; 1718 REQ_SEND;
1485} 1719}
1486 1720
1487void 1721void
1488aio_group (callback=&PL_sv_undef) 1722aio_group (SV *callback = &PL_sv_undef)
1489 SV * callback
1490 PROTOTYPE: ;$
1491 PPCODE: 1723 PPCODE:
1492{ 1724{
1493 dREQ; 1725 dREQ;
1494 1726
1495 req->type = REQ_GROUP; 1727 req->type = EIO_GROUP;
1728
1729 PUTBACK;
1496 req_send (req); 1730 req_submit (req);
1731 SPAGAIN;
1497 1732
1498 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1733 XPUSHs (req_sv (req, aio_grp_stash));
1499} 1734}
1500 1735
1501void 1736void
1502aio_nop (callback=&PL_sv_undef) 1737aio_nop (SV *callback = &PL_sv_undef)
1503 SV * callback 1738 ALIAS:
1739 aio_nop = EIO_NOP
1740 aio_sync = EIO_SYNC
1504 PPCODE: 1741 PPCODE:
1505{ 1742{
1506 dREQ; 1743 dREQ;
1507 1744
1508 req->type = REQ_NOP; 1745 req->type = ix;
1509 1746
1510 REQ_SEND; 1747 REQ_SEND;
1511} 1748}
1512 1749
1513int 1750int
1514aioreq_pri (int pri = 0) 1751aioreq_pri (int pri = NO_INIT)
1515 PROTOTYPE: ;$
1516 CODE: 1752 CODE:
1517 RETVAL = next_pri - PRI_BIAS; 1753 RETVAL = next_pri;
1518 if (items > 0) 1754 if (items > 0)
1519 { 1755 {
1520 if (pri < PRI_MIN) pri = PRI_MIN; 1756 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1521 if (pri > PRI_MAX) pri = PRI_MAX; 1757 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1522 next_pri = pri + PRI_BIAS; 1758 next_pri = pri;
1523 } 1759 }
1524 OUTPUT: 1760 OUTPUT:
1525 RETVAL 1761 RETVAL
1526 1762
1527void 1763void
1528aioreq_nice (int nice = 0) 1764aioreq_nice (int nice = 0)
1529 CODE: 1765 CODE:
1530 nice = next_pri - nice; 1766 nice = next_pri - nice;
1531 if (nice < PRI_MIN) nice = PRI_MIN; 1767 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1532 if (nice > PRI_MAX) nice = PRI_MAX; 1768 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1533 next_pri = nice + PRI_BIAS; 1769 next_pri = nice;
1534 1770
1535void 1771void
1536flush () 1772flush ()
1773 CODE:
1774 while (eio_nreqs ())
1775 {
1776 poll_wait ();
1777 poll_cb ();
1778 }
1779
1780int
1781poll ()
1782 CODE:
1783 poll_wait ();
1784 RETVAL = poll_cb ();
1785 OUTPUT:
1786 RETVAL
1787
1788int
1789poll_fileno ()
1790 CODE:
1791 RETVAL = s_epipe_fd (&respipe);
1792 OUTPUT:
1793 RETVAL
1794
1795int
1796poll_cb (...)
1537 PROTOTYPE: 1797 PROTOTYPE:
1538 CODE: 1798 CODE:
1539 while (nreqs)
1540 {
1541 poll_wait ();
1542 poll_cb (0); 1799 RETVAL = poll_cb ();
1543 }
1544
1545void
1546poll()
1547 PROTOTYPE:
1548 CODE:
1549 if (nreqs)
1550 {
1551 poll_wait ();
1552 poll_cb (0);
1553 }
1554
1555int
1556poll_fileno()
1557 PROTOTYPE:
1558 CODE:
1559 RETVAL = respipe [0];
1560 OUTPUT: 1800 OUTPUT:
1561 RETVAL 1801 RETVAL
1562 1802
1803void
1804poll_wait ()
1805 CODE:
1806 poll_wait ();
1807
1563int 1808int
1564poll_cb(...) 1809nreqs ()
1565 PROTOTYPE:
1566 CODE: 1810 CODE:
1567 RETVAL = poll_cb (0); 1811 RETVAL = eio_nreqs ();
1568 OUTPUT: 1812 OUTPUT:
1569 RETVAL 1813 RETVAL
1570 1814
1571int 1815int
1572poll_some(int max = 0) 1816nready ()
1573 PROTOTYPE: $
1574 CODE: 1817 CODE:
1575 RETVAL = poll_cb (max); 1818 RETVAL = eio_nready ();
1576 OUTPUT: 1819 OUTPUT:
1577 RETVAL 1820 RETVAL
1578 1821
1579void 1822int
1580poll_wait() 1823npending ()
1581 PROTOTYPE:
1582 CODE: 1824 CODE:
1583 if (nreqs) 1825 RETVAL = eio_npending ();
1584 poll_wait ();
1585
1586int
1587nreqs()
1588 PROTOTYPE:
1589 CODE:
1590 RETVAL = nreqs;
1591 OUTPUT: 1826 OUTPUT:
1592 RETVAL 1827 RETVAL
1593 1828
1594int 1829int
1595nready() 1830nthreads ()
1596 PROTOTYPE:
1597 CODE: 1831 CODE:
1598 RETVAL = get_nready (); 1832 RETVAL = eio_nthreads ();
1599 OUTPUT: 1833 OUTPUT:
1600 RETVAL 1834 RETVAL
1601 1835
1602int 1836int
1603npending() 1837fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1604 PROTOTYPE: 1838 CODE:
1839 RETVAL = posix_fadvise (fh, offset, length, advice);
1840 OUTPUT:
1841 RETVAL
1842
1843IV
1844sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1845 CODE:
1846 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1847 OUTPUT:
1848 RETVAL
1849
1850void
1851mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1852 PPCODE:
1853 sv_unmagic (scalar, MMAP_MAGIC);
1854{
1855 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1856 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1857 if (addr == (void *)-1)
1858 XSRETURN_NO;
1859
1860 sv_force_normal (scalar);
1861
1862 /* we store the length in mg_obj, as namlen is I32 :/ */
1863 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1864 ->mg_obj = (SV *)length;
1865
1866 SvUPGRADE (scalar, SVt_PV); /* nop... */
1867
1868 if (!(prot & PROT_WRITE))
1869 SvREADONLY_on (scalar);
1870
1871 if (SvLEN (scalar))
1872 Safefree (SvPVX (scalar));
1873
1874 SvPVX (scalar) = (char *)addr;
1875 SvCUR_set (scalar, length);
1876 SvLEN_set (scalar, 0);
1877 SvPOK_only (scalar);
1878
1879 XSRETURN_YES;
1880}
1881
1882void
1883munmap (SV *scalar)
1605 CODE: 1884 CODE:
1606 RETVAL = get_npending (); 1885 sv_unmagic (scalar, MMAP_MAGIC);
1886
1887int
1888madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1889 ALIAS:
1890 mprotect = 1
1891 CODE:
1892{
1893 STRLEN svlen;
1894 void *addr = SvPVbyte (scalar, svlen);
1895 STRLEN len = SvUV (length);
1896
1897 if (offset < 0)
1898 offset += svlen;
1899
1900 if (offset < 0 || offset > svlen)
1901 croak ("offset outside of scalar");
1902
1903 if (!SvOK (length) || len + offset > svlen)
1904 len = svlen - offset;
1905
1906 addr = (void *)(((intptr_t)addr) + offset);
1907 eio_page_align (&addr, &len);
1908
1909 switch (ix)
1910 {
1911 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1912 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1913 }
1914}
1607 OUTPUT: 1915 OUTPUT:
1608 RETVAL 1916 RETVAL
1917
1918int
1919munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1920 CODE:
1921{
1922 STRLEN svlen;
1923 void *addr = SvPVbyte (scalar, svlen);
1924 size_t len = SvUV (length);
1925
1926 if (offset < 0)
1927 offset += svlen;
1928
1929 if (offset < 0 || offset > svlen)
1930 croak ("offset outside of scalar");
1931
1932 if (!SvOK (length) || len + offset > svlen)
1933 len = svlen - offset;
1934
1935 addr = (void *)(((intptr_t)addr) + offset);
1936 eio_page_align (&addr, &len);
1937#if _POSIX_MEMLOCK_RANGE
1938 RETVAL = munlock (addr, len);
1939#else
1940 RETVAL = EIO_ENOSYS ();
1941#endif
1942}
1943 OUTPUT:
1944 RETVAL
1945
1946int
1947munlockall ()
1948 CODE:
1949#if _POSIX_MEMLOCK
1950 munlockall ();
1951#else
1952 RETVAL = EIO_ENOSYS ();
1953#endif
1954 OUTPUT:
1955 RETVAL
1956
1957int
1958splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1959 CODE:
1960{
1961#if HAVE_LINUX_SPLICE
1962 loff_t off_in_, off_out_;
1963 RETVAL = splice (
1964 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1965 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1966 length, flags
1967 );
1968#else
1969 RETVAL = EIO_ENOSYS ();
1970#endif
1971}
1972 OUTPUT:
1973 RETVAL
1974
1975int
1976tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1977 CODE:
1978#if HAVE_LINUX_SPLICE
1979 RETVAL = tee (rfh, wfh, length, flags);
1980#else
1981 RETVAL = EIO_ENOSYS ();
1982#endif
1983 OUTPUT:
1984 RETVAL
1985
1986int
1987pipesize (aio_rfd rfh, int new_size = -1)
1988 PROTOTYPE: $;$
1989 CODE:
1990#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1991 if (new_size >= 0)
1992 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1993 else
1994 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1995#else
1996 errno = ENOSYS;
1997 RETVAL = -1;
1998#endif
1999 OUTPUT:
2000 RETVAL
2001
2002void
2003pipe2 (int flags = 0)
2004 PROTOTYPE: ;$
2005 PPCODE:
2006{
2007 int fd[2];
2008 int res;
2009
2010 if (flags)
2011#if HAVE_PIPE2
2012 res = pipe2 (fd, flags);
2013#else
2014 res = (errno = ENOSYS, -1);
2015#endif
2016 else
2017 res = pipe (fd);
2018
2019 if (!res)
2020 {
2021 EXTEND (SP, 2);
2022 PUSHs (newmortalFH (fd[0], O_RDONLY));
2023 PUSHs (newmortalFH (fd[1], O_WRONLY));
2024 }
2025}
2026
2027void _on_next_submit (SV *cb)
2028 CODE:
2029 SvREFCNT_dec (on_next_submit);
2030 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1609 2031
1610PROTOTYPES: DISABLE 2032PROTOTYPES: DISABLE
2033
2034MODULE = IO::AIO PACKAGE = IO::AIO::WD
2035
2036BOOT:
2037{
2038 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2039 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2040}
2041
2042void
2043DESTROY (SV *self)
2044 CODE:
2045{
2046 aio_wd wd = SvAIO_WD (self);
2047#if HAVE_AT
2048 {
2049 SV *callback = &PL_sv_undef;
2050 dREQ; /* clobbers next_pri :/ */
2051 next_pri = req->pri; /* restore next_pri */
2052 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2053 req->type = EIO_WD_CLOSE;
2054 req->wd = wd;
2055 REQ_SEND;
2056 }
2057#else
2058 eio_wd_close_sync (wd);
2059#endif
2060}
1611 2061
1612MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2062MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1613 2063
1614void 2064void
1615cancel (aio_req_ornot req) 2065cancel (aio_req_ornot req)
1616 CODE: 2066 CODE:
1617 req_cancel (req); 2067 eio_cancel (req);
1618 2068
1619void 2069void
1620cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2070cb (aio_req_ornot req, SV *callback = NO_INIT)
1621 CODE: 2071 PPCODE:
2072{
2073 if (GIMME_V != G_VOID)
2074 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2075
2076 if (items > 1)
2077 {
2078 SV *cb_cv = get_cb (callback);
2079
1622 SvREFCNT_dec (req->callback); 2080 SvREFCNT_dec (req->callback);
1623 req->callback = newSVsv (callback); 2081 req->callback = SvREFCNT_inc (cb_cv);
2082 }
2083}
1624 2084
1625MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2085MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1626 2086
1627void 2087void
1628add (aio_req grp, ...) 2088add (aio_req grp, ...)
1629 PPCODE: 2089 PPCODE:
1630{ 2090{
1631 int i; 2091 int i;
1632 aio_req req;
1633 2092
1634 if (grp->fd == 2) 2093 if (grp->int1 == 2)
1635 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2094 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1636 2095
1637 for (i = 1; i < items; ++i ) 2096 for (i = 1; i < items; ++i )
1638 { 2097 {
2098 aio_req req;
2099
1639 if (GIMME_V != G_VOID) 2100 if (GIMME_V != G_VOID)
1640 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2101 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1641 2102
1642 req = SvAIO_REQ (ST (i)); 2103 req = SvAIO_REQ (ST (i));
1643 2104
1644 if (req) 2105 if (req)
1645 { 2106 eio_grp_add (grp, req);
1646 ++grp->length;
1647 req->grp = grp;
1648
1649 req->grp_prev = 0;
1650 req->grp_next = grp->grp_first;
1651
1652 if (grp->grp_first)
1653 grp->grp_first->grp_prev = req;
1654
1655 grp->grp_first = req;
1656 }
1657 } 2107 }
1658} 2108}
1659 2109
1660void 2110void
1661cancel_subs (aio_req_ornot req) 2111cancel_subs (aio_req_ornot req)
… …
1670 AV *av; 2120 AV *av;
1671 2121
1672 grp->errorno = errno; 2122 grp->errorno = errno;
1673 2123
1674 av = newAV (); 2124 av = newAV ();
2125 av_extend (av, items - 1);
1675 2126
1676 for (i = 1; i < items; ++i ) 2127 for (i = 1; i < items; ++i )
1677 av_push (av, newSVsv (ST (i))); 2128 av_push (av, newSVsv (ST (i)));
1678 2129
1679 SvREFCNT_dec (grp->data); 2130 SvREFCNT_dec (grp->sv1);
1680 grp->data = (SV *)av; 2131 grp->sv1 = (SV *)av;
1681} 2132}
1682 2133
1683void 2134void
1684errno (aio_req grp, int errorno = errno) 2135errno (aio_req grp, int errorno = errno)
1685 CODE: 2136 CODE:
1686 grp->errorno = errorno; 2137 grp->errorno = errorno;
1687 2138
1688void 2139void
1689limit (aio_req grp, int limit) 2140limit (aio_req grp, int limit)
1690 CODE: 2141 CODE:
1691 grp->fd2 = limit; 2142 eio_grp_limit (grp, limit);
1692 aio_grp_feed (grp);
1693 2143
1694void 2144void
1695feed (aio_req grp, SV *callback=&PL_sv_undef) 2145feed (aio_req grp, SV *callback = &PL_sv_undef)
1696 CODE: 2146 CODE:
1697{ 2147{
1698 SvREFCNT_dec (grp->fh2); 2148 SvREFCNT_dec (grp->sv2);
1699 grp->fh2 = newSVsv (callback); 2149 grp->sv2 = newSVsv (callback);
2150 grp->feed = aio_grp_feed;
1700 2151
1701 if (grp->fd2 <= 0) 2152 if (grp->int2 <= 0)
1702 grp->fd2 = 2; 2153 grp->int2 = 2;
1703 2154
1704 aio_grp_feed (grp); 2155 eio_grp_limit (grp, grp->int2);
1705} 2156}
1706 2157

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