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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.76 by root, Thu Oct 26 12:38:04 2006 UTC vs.
Revision 1.249 by root, Fri Jun 23 23:50:25 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 156#endif
57 157#ifndef major
58#if __ia64 158# define major(dev) ((dev) >> 8)
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 159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
65 163
66/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
67#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
68 167
69#define dBUF \ 168/*****************************************************************************/
70 char *aio_buf; \ 169
71 LOCK (wrklock); \ 170static void
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 171fiemap (eio_req *req)
73 UNLOCK (wrklock); \ 172{
74 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)
75 return -1; 191 return;
76 192
77enum { 193 req->ptr1 = fiemap;
78 REQ_QUIT,
79 REQ_OPEN, REQ_CLOSE,
80 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP,
88 REQ_BUSY,
89};
90 194
91#define AIO_REQ_KLASS "IO::AIO::REQ" 195 fiemap->fm_start = req->offs;
92#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;
93 199
94typedef struct aio_cb 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
95{ 201 return;
96 struct aio_cb *volatile next;
97 202
98 SV *data, *callback; 203 if (req->int3 >= 0 /* not autosizing */
99 SV *fh, *fh2; 204 || !fiemap->fm_mapped_extents /* no more extents */
100 void *dataptr, *data2ptr; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
101 Stat_t *statdata; 206 goto done;
102 off_t offset;
103 size_t length;
104 ssize_t result;
105 207
106 STRLEN dataoffset; 208 /* else we have to loop -
107 int type; 209 * it would be tempting (actually I tried that first) to just query the
108 int fd, fd2; 210 * number of extents needed, but linux often feels like not returning all
109 int errorno; 211 * extents, without telling us it left any out. this complicates
110 mode_t mode; /* open */ 212 * this quite a bit.
213 */
111 214
112 unsigned char flags; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
113 unsigned char pri;
114 216
115 SV *self; /* the perl counterpart of this request, if any */ 217 for (;;)
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
117} aio_cb;
118
119enum {
120 FLAG_CANCELLED = 0x01,
121};
122
123typedef aio_cb *aio_req;
124typedef aio_cb *aio_req_ornot;
125
126enum {
127 PRI_MIN = -4,
128 PRI_MAX = 4,
129
130 DEFAULT_PRI = 0,
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134
135static int next_pri = DEFAULT_PRI + PRI_BIAS;
136
137static int started, wanted;
138static volatile int nreqs;
139static int respipe [2];
140
141#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143#else
144# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145#endif
146
147#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149
150/* worker threads management */
151static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
152
153typedef struct worker {
154 /* locked by wrklock */
155 struct worker *prev, *next;
156
157 pthread_t tid;
158
159 /* locked by reslock, reqlock or wrklock */
160 aio_req req; /* currently processed request */
161 void *dbuf;
162 DIR *dirp;
163} worker;
164
165static worker wrk_first = { &wrk_first, &wrk_first, 0 };
166
167static void worker_clear (worker *wrk)
168{
169 if (wrk->dirp)
170 { 218 {
171 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) */
172 wrk->dirp = 0; 220 char scratch[3072];
173 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
174 222
175 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
176 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
177 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
178 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
179 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
180}
181 228
182static void worker_free (worker *wrk) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183{
184 wrk->next->prev = wrk->prev;
185 wrk->prev->next = wrk->next;
186
187 free (wrk);
188}
189
190static pthread_mutex_t reslock = AIO_MUTEX_INIT;
191static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
192static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
193
194/*
195 * a somewhat faster data structure might be nice, but
196 * with 8 priorities this actually needs <20 insns
197 * per shift, the most expensive operation.
198 */
199typedef struct {
200 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
201 int size;
202} reqq;
203
204static reqq req_queue;
205static reqq res_queue;
206
207int reqq_push (reqq *q, aio_req req)
208{
209 int pri = req->pri;
210 req->next = 0;
211
212 if (q->qe[pri])
213 {
214 q->qe[pri]->next = req;
215 q->qe[pri] = req;
216 }
217 else
218 q->qe[pri] = q->qs[pri] = req;
219
220 return q->size++;
221}
222
223aio_req reqq_shift (reqq *q)
224{
225 int pri;
226
227 if (!q->size)
228 return 0; 230 return;
229 231
230 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
231 234
232 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
233 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
234 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
235
236 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
237 { 244 {
238 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
239 q->qe[pri] = 0;
240 246
241 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
242 } 255 }
243 } 256 }
244 257
245 abort (); 258done:
246} 259 req->result = 0;
247 260
248static int poll_cb (int max); 261#else
249static 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
250static void req_free (aio_req req); 282static void req_destroy (aio_req req);
251static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
252 284
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
253/* must be called at most once */ 299/* must be called at most once */
254static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
255{ 302{
256 if (!req->self) 303 if (!req->self)
257 { 304 {
258 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
260 } 307 }
261 308
262 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
263} 310}
264 311
265static 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)
266{ 320{
267 MAGIC *mg; 321 MAGIC *mg;
268 322
269 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")))
270 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
271 329
272 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273 331
274 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
275} 333}
276 334
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
277static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
278{ 373{
279 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
280 { 375 {
281 int old_len = grp->length;
282
283 if (grp->fh2 && SvOK (grp->fh2))
284 {
285 dSP; 376 dSP;
286 377
287 ENTER; 378 ENTER;
288 SAVETMPS; 379 SAVETMPS;
289 PUSHMARK (SP); 380 PUSHMARK (SP);
290 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
291 PUTBACK; 382 PUTBACK;
292 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293 SPAGAIN; 384 SPAGAIN;
294 FREETMPS; 385 FREETMPS;
295 LEAVE; 386 LEAVE;
296 }
297
298 /* stop if no progress has been made */
299 if (old_len == grp->length)
300 {
301 SvREFCNT_dec (grp->fh2);
302 grp->fh2 = 0;
303 break;
304 }
305 } 387 }
306} 388}
307 389
308static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
309{ 392{
310 --grp->length; 393 eio_submit (req);
311 394
312 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
313 aio_grp_feed (grp);
314
315 /* finish, if done */
316 if (!grp->length && grp->fd)
317 { 396 {
318 req_invoke (grp); 397 dSP;
319 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);
320 } 405 }
321} 406}
322 407
323static void poll_wait () 408static int
409req_invoke (eio_req *req)
324{ 410{
325 fd_set rfd; 411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
326 413
327 while (nreqs) 414 if (!EIO_CANCELLED (req) && req->callback)
328 { 415 {
329 int size;
330#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
331 LOCK (reslock);
332#endif
333 size = res_queue.size;
334#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
335 UNLOCK (reslock);
336#endif
337
338 if (size)
339 return;
340
341 FD_ZERO(&rfd);
342 FD_SET(respipe [0], &rfd);
343
344 select (respipe [0] + 1, &rfd, 0, 0, 0);
345 }
346}
347
348static void req_invoke (aio_req req)
349{
350 dSP; 416 dSP;
351 417 static SV *sv_result_cache; /* caches the result integer SV */
352 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 418 SV *sv_result;
353 {
354 errno = req->errorno;
355 419
356 ENTER; 420 ENTER;
357 SAVETMPS; 421 SAVETMPS;
358 PUSHMARK (SP); 422 PUSHMARK (SP);
359 EXTEND (SP, 1); 423 EXTEND (SP, 1);
360 424
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
361 switch (req->type) 438 switch (req->type)
362 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
363 case REQ_READDIR: 444 case EIO_READDIR:
364 { 445 {
365 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
366 447
367 if (req->result >= 0) 448 if (req->result >= 0)
368 { 449 {
369 int i; 450 int i;
370 char *buf = req->data2ptr; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
371 AV *av = newAV (); 453 AV *av = newAV ();
372 454
373 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
374 456
375 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
376 { 458 {
377 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
378 462
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
379 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);
380 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
381 } 493 }
382 494
383 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
384 } 496 }
385 497
386 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))));
387 } 502 }
388 break; 503 break;
389 504
390 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:
391 { 511 {
392 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
393 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));
394 524
395 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
396 PUTBACK;
397 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
398 SPAGAIN;
399 526
400 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
401 540
402 PUSHMARK (SP); 541 PUSHs (rv);
403 XPUSHs (sv_2mortal (fh));
404 } 542 }
543
405 break; 544 break;
406 545
407 case REQ_GROUP: 546 case EIO_GROUP:
408 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
409 548
410 if (req->data) 549 if (req->sv1)
411 { 550 {
412 int i; 551 int i;
413 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
414 553
415 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
416 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
417 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
418 } 557 }
419 break; 558 break;
420 559
421 case REQ_NOP: 560 case EIO_NOP:
422 case REQ_BUSY: 561 case EIO_BUSY:
423 break; 562 break;
424 563
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
425 default: 641 default:
426 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
427 break; 643 break;
428 } 644 }
429 645
646 errno = req->errorno;
430 647
431 PUTBACK; 648 PUTBACK;
432 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
433 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;
434 656
435 FREETMPS; 657 FREETMPS;
436 LEAVE; 658 LEAVE;
659
660 PUTBACK;
437 } 661 }
438 662
439 if (req->grp) 663 return !!SvTRUE (ERRSV);
440 {
441 aio_req grp = req->grp;
442
443 /* unlink request */
444 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
445 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
446
447 if (grp->grp_first == req)
448 grp->grp_first = req->grp_next;
449
450 aio_grp_dec (grp);
451 }
452
453 if (SvTRUE (ERRSV))
454 {
455 req_free (req);
456 croak (0);
457 }
458} 664}
459 665
460static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
461{ 668{
462 if (req->self) 669 if (req->self)
463 { 670 {
464 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
465 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
466 } 673 }
467 674
468 SvREFCNT_dec (req->data);
469 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
470 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
471 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
472 Safefree (req->statdata);
473 680
474 if (req->type == REQ_READDIR)
475 free (req->data2ptr);
476
477 Safefree (req); 681 free (req);
478} 682}
479 683
684static void
480static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
481{ 686{
482 aio_req sub;
483
484 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
485 return; 688 return;
486 689
487 SvREFCNT_dec (grp->fh2); 690 SvREFCNT_dec (grp->sv2);
488 grp->fh2 = 0; 691 grp->sv2 = 0;
489 692
490 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
491 req_cancel (sub);
492} 694}
493 695
494static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
495{ 698{
496 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
497 700 croak ("IO::AIO: unable to initialize result pipe");
498 req_cancel_subs (req);
499} 701}
500 702
501static int poll_cb (int max) 703static void
704poll_wait (void)
502{ 705{
503 dSP; 706 while (eio_nreqs ())
504 int count = 0; 707 {
505 int do_croak = 0; 708 int size;
709
710 X_LOCK (EIO_POOL->reslock);
711 size = EIO_POOL->res_queue.size;
712 X_UNLOCK (EIO_POOL->reslock);
713
714 if (size)
715 return;
716
717 etp_maybe_start_thread (EIO_POOL);
718
719 s_epipe_wait (&respipe);
720 }
721}
722
723static int
724poll_cb (void)
725{
726 for (;;)
727 {
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;
506 aio_req req; 800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
507 803
508 while (max <= 0 || count < max) 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)))
509 { 831 {
510 LOCK (reslock); 832 SV *rv = SvRV (path);
511 req = reqq_shift (&res_queue); 833 SV *wdob;
512 834
513 if (req) 835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
514 { 836 {
515 if (!res_queue.size) 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
839
840 if (SvOK (wdob))
516 { 841 {
517 /* read any signals sent by the worker threads */ 842 *wd = SvAIO_WD (wdob);
518 char buf [32]; 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
519 while (read (respipe [0], buf, 32) == 32)
520 ;
521 } 844 }
845 else
846 *wd = EIO_INVALID_WD;
522 } 847 }
523 848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
524 UNLOCK (reslock);
525
526 if (!req)
527 break;
528
529 --nreqs;
530
531 if (req->type == REQ_QUIT)
532 started--;
533 else if (req->type == REQ_GROUP && req->length)
534 { 849 {
535 req->fd = 1; /* mark request as delayed */ 850 *wd = (aio_wd)(long)SvIVX (rv);
536 continue; 851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
537 } 854 }
538 else 855 else
539 { 856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
540 if (req->type == REQ_READ)
541 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
542
543 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
544 SvREADONLY_off (req->data);
545
546 if (req->statdata)
547 {
548 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
549 PL_laststatval = req->result;
550 PL_statcache = *(req->statdata);
551 }
552
553 req_invoke (req);
554
555 count++;
556 }
557
558 req_free (req);
559 } 857 }
560 858
561 return count; 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
562} 861}
563 862
564static void *aio_proc(void *arg); 863static void ecb_noinline
565 864req_set_path1 (aio_req req, SV *path)
566static void start_thread (void)
567{ 865{
568 sigset_t fullsigset, oldsigset; 866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
569 pthread_attr_t attr; 867}
570 868
571 worker *wrk = calloc (1, sizeof (worker)); 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;
572 873
573 if (!wrk) 874 switch (SvTYPE (rv))
574 croak ("unable to allocate worker thread data");
575
576 pthread_attr_init (&attr);
577 pthread_attr_setstacksize (&attr, STACKSIZE);
578 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
579
580 sigfillset (&fullsigset);
581
582 LOCK (wrklock);
583 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
584
585 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
586 { 875 {
587 wrk->prev = &wrk_first; 876 case SVt_PVIO:
588 wrk->next = wrk_first.next; 877 case SVt_PVLV:
589 wrk_first.next->prev = wrk; 878 case SVt_PVGV:
590 wrk_first.next = wrk; 879 req->type = type_fh;
591 started++; 880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882 break;
883
884 default:
885 req->type = type_path;
886 req_set_path1 (req, fh_or_path);
887 break;
592 } 888 }
593 else
594 free (wrk);
595
596 sigprocmask (SIG_SETMASK, &oldsigset, 0);
597 UNLOCK (wrklock);
598} 889}
599 890
600static void req_send (aio_req req) 891XS(boot_IO__AIO) ecb_cold;
601{
602 while (started < wanted && nreqs >= started)
603 start_thread ();
604 892
605 ++nreqs; 893MODULE = IO::AIO PACKAGE = IO::AIO
606 894
607 LOCK (reqlock); 895PROTOTYPES: ENABLE
608 reqq_push (&req_queue, req);
609 pthread_cond_signal (&reqwait);
610 UNLOCK (reqlock);
611}
612 896
613static void end_thread (void) 897BOOT:
614{ 898{
615 aio_req req; 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 },
616 906
617 Newz (0, req, 1, aio_cb); 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)
618 912
619 req->type = REQ_QUIT; 913 /* for lseek */
620 req->pri = PRI_MAX + PRI_BIAS; 914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
621 916
622 req_send (req); 917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
623} 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)
624 923
625static void min_parallel (int nthreads) 924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
626{ 925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
627 if (wanted < nthreads) 926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
628 wanted = nthreads; 927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
629} 928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
630 929
631static void max_parallel (int nthreads) 930 /* the second block will be 0 when missing */
632{ 931 const_iv (O_RDONLY)
633 int cur = started; 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)
634 938
635 if (wanted > nthreads) 939 const_iv (O_ASYNC)
636 wanted = nthreads; 940 const_iv (O_DIRECT)
941 const_iv (O_NOATIME)
637 942
638 while (cur > wanted) 943 const_iv (O_CLOEXEC)
639 { 944 const_iv (O_NOCTTY)
640 end_thread (); 945 const_iv (O_NOFOLLOW)
641 cur--; 946 const_iv (O_NONBLOCK)
642 } 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)
643 956
644 while (started > wanted) 957 const_iv (S_IFIFO)
645 { 958 const_iv (S_IFCHR)
646 poll_wait (); 959 const_iv (S_IFBLK)
647 poll_cb (0); 960 const_iv (S_IFLNK)
648 } 961 const_iv (S_IFREG)
649} 962 const_iv (S_IFDIR)
963 const_iv (S_IFWHT)
964 const_iv (S_IFSOCK)
965 const_iv (S_IFMT)
650 966
651static void create_pipe () 967 const_iv (ST_RDONLY)
652{ 968 const_iv (ST_NOSUID)
653 if (pipe (respipe)) 969 const_iv (ST_NODEV)
654 croak ("unable to initialize result pipe"); 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)
655 979
656 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 980 const_iv (PROT_NONE)
657 croak ("cannot set result pipe to nonblocking mode"); 981 const_iv (PROT_EXEC)
982 const_iv (PROT_READ)
983 const_iv (PROT_WRITE)
658 984
659 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 985 const_iv (MAP_PRIVATE)
660 croak ("cannot set result pipe to nonblocking mode"); 986 const_iv (MAP_SHARED)
661} 987 const_iv (MAP_FIXED)
988 const_iv (MAP_ANONYMOUS)
662 989
663/*****************************************************************************/ 990 /* linuxish */
664/* work around various missing functions */ 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)
665 999
666#if !HAVE_PREADWRITE 1000 const_iv (F_DUPFD_CLOEXEC)
667# define pread aio_pread
668# define pwrite aio_pwrite
669 1001
670/* 1002 const_iv (F_OFD_GETLK)
671 * make our pread/pwrite safe against themselves, but not against 1003 const_iv (F_OFD_SETLK)
672 * normal read/write by using a mutex. slows down execution a lot, 1004 const_iv (F_OFD_GETLKW)
673 * but that's your problem, not mine.
674 */
675static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
676 1005
677static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1006 const_iv (FIFREEZE)
678{ 1007 const_iv (FITHAW)
679 ssize_t res; 1008 const_iv (FITRIM)
680 off_t ooffset; 1009 const_iv (FICLONE)
1010 const_iv (FICLONERANGE)
1011 const_iv (FIDEDUPERANGE)
681 1012
682 LOCK (preadwritelock); 1013 const_iv (FS_IOC_GETFLAGS)
683 ooffset = lseek (fd, 0, SEEK_CUR); 1014 const_iv (FS_IOC_SETFLAGS)
684 lseek (fd, offset, SEEK_SET); 1015 const_iv (FS_IOC_GETVERSION)
685 res = read (fd, buf, count); 1016 const_iv (FS_IOC_SETVERSION)
686 lseek (fd, ooffset, SEEK_SET); 1017 const_iv (FS_IOC_FIEMAP)
687 UNLOCK (preadwritelock); 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)
688 1023
689 return res; 1024 const_iv (FS_KEY_DESCRIPTOR_SIZE)
690}
691 1025
692static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1026 const_iv (FS_SECRM_FL)
693{ 1027 const_iv (FS_UNRM_FL)
694 ssize_t res; 1028 const_iv (FS_COMPR_FL)
695 off_t ooffset; 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)
696 1045
697 LOCK (preadwritelock); 1046 const_iv (FS_XFLAG_REALTIME)
698 ooffset = lseek (fd, 0, SEEK_CUR); 1047 const_iv (FS_XFLAG_PREALLOC)
699 lseek (fd, offset, SEEK_SET); 1048 const_iv (FS_XFLAG_IMMUTABLE)
700 res = write (fd, buf, count); 1049 const_iv (FS_XFLAG_APPEND)
701 lseek (fd, offset, SEEK_SET); 1050 const_iv (FS_XFLAG_SYNC)
702 UNLOCK (preadwritelock); 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)
703 1062
704 return res; 1063 const_iv (FIEMAP_FLAG_SYNC)
705} 1064 const_iv (FIEMAP_FLAG_XATTR)
706#endif 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)
707 1077
708#if !HAVE_FDATASYNC 1078 const_iv (SPLICE_F_MOVE)
709# define fdatasync fsync 1079 const_iv (SPLICE_F_NONBLOCK)
710#endif 1080 const_iv (SPLICE_F_MORE)
1081 const_iv (SPLICE_F_GIFT)
711 1082
712#if !HAVE_READAHEAD 1083 /* these are libeio constants, and are independent of gendef0 */
713# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1084 const_eio (SEEK_SET)
1085 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END)
714 1087
715static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1088 const_eio (MCL_FUTURE)
716{ 1089 const_eio (MCL_CURRENT)
717 dBUF;
718 1090
719 while (count > 0) 1091 const_eio (MS_ASYNC)
720 { 1092 const_eio (MS_INVALIDATE)
721 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1093 const_eio (MS_SYNC)
722 1094
723 pread (fd, aio_buf, len, offset); 1095 const_eio (MT_MODIFY)
724 offset += len;
725 count -= len;
726 }
727 1096
728 errno = 0; 1097 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
729} 1098 const_eio (SYNC_FILE_RANGE_WRITE)
1099 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
730 1100
731#endif 1101 const_eio (FALLOC_FL_KEEP_SIZE)
1102 const_eio (FALLOC_FL_PUNCH_HOLE)
1103 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1104 const_eio (FALLOC_FL_ZERO_RANGE)
1105 const_eio (FALLOC_FL_INSERT_RANGE)
1106 const_eio (FALLOC_FL_UNSHARE_RANGE)
732 1107
733#if !HAVE_READDIR_R 1108 const_eio (RENAME_NOREPLACE)
734# define readdir_r aio_readdir_r 1109 const_eio (RENAME_EXCHANGE)
1110 const_eio (RENAME_WHITEOUT)
735 1111
736static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1112 const_eio (READDIR_DENTS)
737 1113 const_eio (READDIR_DIRS_FIRST)
738static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1114 const_eio (READDIR_STAT_ORDER)
739{ 1115 const_eio (READDIR_FOUND_UNKNOWN)
740 struct dirent *e;
741 int errorno;
742 1116
743 LOCK (readdirlock); 1117 const_eio (DT_UNKNOWN)
744 1118 const_eio (DT_FIFO)
745 e = readdir (dirp); 1119 const_eio (DT_CHR)
746 errorno = errno; 1120 const_eio (DT_DIR)
747 1121 const_eio (DT_BLK)
748 if (e) 1122 const_eio (DT_REG)
749 { 1123 const_eio (DT_LNK)
750 *res = ent; 1124 const_eio (DT_SOCK)
751 strcpy (ent->d_name, e->d_name); 1125 const_eio (DT_WHT)
752 }
753 else
754 *res = 0;
755
756 UNLOCK (readdirlock);
757
758 errno = errorno;
759 return e ? 0 : -1;
760}
761#endif
762
763/* sendfile always needs emulation */
764static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
765{
766 ssize_t res;
767
768 if (!count)
769 return 0;
770
771#if HAVE_SENDFILE
772# if __linux
773 res = sendfile (ofd, ifd, &offset, count);
774
775# elif __freebsd
776 /*
777 * Of course, the freebsd sendfile is a dire hack with no thoughts
778 * wasted on making it similar to other I/O functions.
779 */
780 {
781 off_t sbytes;
782 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
783
784 if (res < 0 && sbytes)
785 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
786 res = sbytes;
787 } 1126 };
788 1127
789# elif __hpux 1128 aio_stash = gv_stashpv ("IO::AIO" , 1);
790 res = sendfile (ofd, ifd, offset, count, 0, 0); 1129 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1130 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1131 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
791 1132
792# elif __solaris 1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
793 { 1134 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
794 struct sendfilevec vec;
795 size_t sbytes;
796 1135
797 vec.sfv_fd = ifd; 1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
798 vec.sfv_flag = 0;
799 vec.sfv_off = offset;
800 vec.sfv_len = count;
801 1137
802 res = sendfilev (ofd, &vec, 1, &sbytes); 1138 reinit ();
1139}
803 1140
804 if (res < 0 && sbytes) 1141void
1142reinit ()
1143 PROTOTYPE:
1144
1145void
1146max_poll_reqs (unsigned int nreqs)
1147 PROTOTYPE: $
1148 CODE:
1149 eio_set_max_poll_reqs (nreqs);
1150
1151void
1152max_poll_time (double nseconds)
1153 PROTOTYPE: $
1154 CODE:
1155 eio_set_max_poll_time (nseconds);
1156
1157void
1158min_parallel (unsigned int nthreads)
1159 PROTOTYPE: $
1160 CODE:
1161 eio_set_min_parallel (nthreads);
1162
1163void
1164max_parallel (unsigned int nthreads)
1165 PROTOTYPE: $
1166 CODE:
1167 eio_set_max_parallel (nthreads);
1168
1169void
1170max_idle (unsigned int nthreads)
1171 PROTOTYPE: $
1172 CODE:
1173 eio_set_max_idle (nthreads);
1174
1175void
1176idle_timeout (unsigned int seconds)
1177 PROTOTYPE: $
1178 CODE:
1179 eio_set_idle_timeout (seconds);
1180
1181void
1182max_outstanding (unsigned int maxreqs)
1183 PROTOTYPE: $
1184 CODE:
1185 max_outstanding = maxreqs;
1186
1187void
1188aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1189 PPCODE:
1190{
1191 dREQ;
1192
1193 req->type = EIO_WD_OPEN;
1194 req_set_path1 (req, pathname);
1195
1196 REQ_SEND;
1197}
1198
1199void
1200aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1201 PPCODE:
1202{
1203 dREQ;
1204
1205 req->type = EIO_OPEN;
1206 req_set_path1 (req, pathname);
1207 req->int1 = flags;
1208 req->int2 = mode;
1209
1210 REQ_SEND;
1211}
1212
1213void
1214aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1215 ALIAS:
1216 aio_fsync = EIO_FSYNC
1217 aio_fdatasync = EIO_FDATASYNC
1218 aio_syncfs = EIO_SYNCFS
1219 PPCODE:
1220{
1221 int fd = s_fileno_croak (fh, 0);
1222 dREQ;
1223
1224 req->type = ix;
1225 req->sv1 = newSVsv (fh);
1226 req->int1 = fd;
1227
1228 REQ_SEND;
1229}
1230
1231void
1232aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1233 PPCODE:
1234{
1235 int fd = s_fileno_croak (fh, 0);
1236 dREQ;
1237
1238 req->type = EIO_SYNC_FILE_RANGE;
1239 req->sv1 = newSVsv (fh);
1240 req->int1 = fd;
1241 req->offs = offset;
805 res = sbytes; 1242 req->size = nbytes;
806 } 1243 req->int2 = flags;
807 1244
808# endif 1245 REQ_SEND;
1246}
1247
1248void
1249aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1250 PPCODE:
1251{
1252 int fd = s_fileno_croak (fh, 0);
1253 dREQ;
1254
1255 req->type = EIO_FALLOCATE;
1256 req->sv1 = newSVsv (fh);
1257 req->int1 = fd;
1258 req->int2 = mode;
1259 req->offs = offset;
1260 req->size = len;
1261
1262 REQ_SEND;
1263}
1264
1265void
1266aio_close (SV *fh, SV *callback = &PL_sv_undef)
1267 PPCODE:
1268{
1269 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1270 int fd = s_fileno_croak (fh, 0);
1271 dREQ;
1272
1273 if (expect_false (close_fd < 0))
1274 {
1275 int pipefd [2];
1276
1277 if (
1278#ifdef _WIN32
1279 _pipe (pipefd, 1, _O_BINARY) < 0
809#else 1280#else
810 res = -1; 1281 pipe (pipefd) < 0
811 errno = ENOSYS; 1282 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
812#endif 1283#endif
813 1284 || close (pipefd [1]) < 0
814 if (res < 0
815 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
816#if __solaris
817 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
818#endif
819 )
820 )
821 {
822 /* emulate sendfile. this is a major pain in the ass */
823 dBUF;
824
825 res = 0;
826
827 while (count)
828 {
829 ssize_t cnt;
830
831 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
832
833 if (cnt <= 0)
834 { 1285 )
835 if (cnt && !res) res = -1; 1286 abort (); /*D*/
836 break;
837 }
838 1287
839 cnt = write (ofd, aio_buf, cnt); 1288 close_fd = pipefd [0];
840
841 if (cnt <= 0)
842 {
843 if (cnt && !res) res = -1;
844 break;
845 }
846
847 offset += cnt;
848 res += cnt;
849 count -= cnt;
850 }
851 }
852
853 return res;
854}
855
856/* read a full directory */
857static void scandir_ (aio_req req, worker *self)
858{
859 DIR *dirp;
860 union
861 {
862 struct dirent d;
863 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
864 } *u;
865 struct dirent *entp;
866 char *name, *names;
867 int memlen = 4096;
868 int memofs = 0;
869 int res = 0;
870 int errorno;
871
872 LOCK (wrklock);
873 self->dirp = dirp = opendir (req->dataptr);
874 self->dbuf = u = malloc (sizeof (*u));
875 req->data2ptr = names = malloc (memlen);
876 UNLOCK (wrklock);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 {
891 int len = strlen (name) + 1;
892
893 res++;
894
895 while (memofs + len > memlen)
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 } 1289 }
909 }
910 1290
911 if (errno) 1291 req->type = EIO_DUP2;
912 res = -1; 1292 req->int1 = close_fd;
913 1293 req->sv2 = newSVsv (fh);
914 req->result = res; 1294 req->int2 = fd;
915}
916 1295
917/*****************************************************************************/ 1296 REQ_SEND;
918
919static void *aio_proc (void *thr_arg)
920{
921 aio_req req;
922 int type;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 {
931 self->req = req = reqq_shift (&req_queue);
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
949
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 }
988
989 req->errorno = errno;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009} 1297}
1010 1298
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068}
1069
1070#define dREQ \
1071 aio_req req; \
1072 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \
1074 \
1075 if (SvOK (callback) && !SvROK (callback)) \
1076 croak ("callback must be undef or of reference type"); \
1077 \
1078 Newz (0, req, 1, aio_cb); \
1079 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \
1081 \
1082 req->callback = newSVsv (callback); \
1083 req->pri = req_pri
1084
1085#define REQ_SEND \
1086 req_send (req); \
1087 \
1088 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1090
1091MODULE = IO::AIO PACKAGE = IO::AIO
1092
1093PROTOTYPES: ENABLE
1094
1095BOOT:
1096{
1097 HV *stash = gv_stashpv ("IO::AIO", 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101
1102 create_pipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105
1106void 1299void
1107min_parallel (nthreads) 1300aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1108 int nthreads 1301 PPCODE:
1109 PROTOTYPE: $
1110
1111void
1112max_parallel (nthreads)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$
1123 PPCODE:
1124{ 1302{
1303 int fd = s_fileno_croak (fh, 0);
1125 dREQ; 1304 dREQ;
1126 1305
1127 req->type = REQ_OPEN; 1306 req->type = EIO_SEEK;
1128 req->data = newSVsv (pathname); 1307 req->sv1 = newSVsv (fh);
1129 req->dataptr = SvPVbyte_nolen (req->data); 1308 req->int1 = fd;
1130 req->fd = flags; 1309 req->offs = SvVAL64 (offset);
1131 req->mode = mode; 1310 req->int2 = whence;
1132 1311
1133 REQ_SEND; 1312 REQ_SEND;
1134} 1313}
1135 1314
1136void 1315void
1137aio_close (fh,callback=&PL_sv_undef) 1316aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 1317 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC
1145 PPCODE:
1146{
1147 dREQ;
1148
1149 req->type = ix;
1150 req->fh = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152
1153 REQ_SEND (req);
1154}
1155
1156void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS:
1165 aio_read = REQ_READ 1318 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 1319 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 1320 PPCODE:
1169{ 1321{
1170 aio_req req;
1171 STRLEN svlen; 1322 STRLEN svlen;
1323 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 1324 char *svptr = SvPVbyte (data, svlen);
1173 1325 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 1326
1177 if (dataoffset < 0) 1327 if (dataoffset < 0)
1178 dataoffset += svlen; 1328 dataoffset += svlen;
1179 1329
1180 if (dataoffset < 0 || dataoffset > svlen) 1330 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 1331 croak ("dataoffset outside of data scalar");
1182 1332
1183 if (ix == REQ_WRITE) 1333 if (ix == EIO_WRITE)
1184 { 1334 {
1185 /* write: check length and adjust. */ 1335 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 1336 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 1337 len = svlen - dataoffset;
1188 } 1338 }
1189 else 1339 else
1190 { 1340 {
1191 /* read: grow scalar as necessary */ 1341 /* read: check type and grow scalar as necessary */
1342 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1192 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");
1193 } 1346 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 1347
1198 { 1348 {
1199 dREQ; 1349 dREQ;
1200 1350
1201 req->type = ix; 1351 req->type = ix;
1202 req->fh = newSVsv (fh); 1352 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1353 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 1354 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 1355 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 1356 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 1357 req->ptr2 = (char *)svptr + dataoffset;
1358 req->stroffset = dataoffset;
1209 1359
1210 if (!SvREADONLY (data)) 1360 if (!SvREADONLY (data))
1211 { 1361 {
1212 SvREADONLY_on (data); 1362 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 1363 req->flags |= FLAG_SV2_RO_OFF;
1214 } 1364 }
1215 1365
1216 REQ_SEND; 1366 REQ_SEND;
1217 } 1367 }
1218} 1368}
1219 1369
1220void 1370void
1221aio_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)
1222 SV * out_fh 1372 ALIAS:
1223 SV * in_fh 1373 aio_ioctl = EIO_IOCTL
1224 UV in_offset 1374 aio_fcntl = EIO_FCNTL
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 1375 PPCODE:
1229{ 1376{
1230 dREQ; 1377 int fd = s_fileno_croak (fh, 0);
1378 char *svptr;
1231 1379
1232 req->type = REQ_SENDFILE; 1380 if (SvPOK (arg) || !SvNIOK (arg))
1233 req->fh = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235 req->fh2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237 req->offset = in_offset;
1238 req->length = length;
1239
1240 REQ_SEND;
1241}
1242
1243void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE:
1251{
1252 dREQ;
1253
1254 req->type = REQ_READAHEAD;
1255 req->fh = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257 req->offset = offset;
1258 req->length = length;
1259
1260 REQ_SEND;
1261}
1262
1263void
1264aio_stat (fh_or_path,callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS:
1268 aio_stat = REQ_STAT
1269 aio_lstat = REQ_LSTAT
1270 PPCODE:
1271{
1272 dREQ;
1273
1274 New (0, req->statdata, 1, Stat_t);
1275 if (!req->statdata)
1276 { 1381 {
1277 req_free (req); 1382 STRLEN svlen;
1278 croak ("out of memory during aio_req->statdata allocation"); 1383 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1279 } 1384#ifdef IOCPARM_LEN
1385 STRLEN need = IOCPARM_LEN (request);
1386#else
1387 STRLEN need = 256;
1388#endif
1280 1389
1281 if (SvPOK (fh_or_path)) 1390 if (svlen < need)
1282 { 1391 svptr = SvGROW (arg, need);
1283 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data);
1286 } 1392 }
1287 else 1393 else
1394 svptr = (char *)SvIV (arg);
1395
1288 { 1396 {
1397 dREQ;
1398
1289 req->type = REQ_FSTAT; 1399 req->type = ix;
1290 req->fh = newSVsv (fh_or_path); 1400 req->sv1 = newSVsv (fh);
1291 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;
1292 } 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);
1293 1421
1294 REQ_SEND; 1422 REQ_SEND;
1295} 1423}
1296 1424
1297void 1425void
1298aio_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)
1299 SV * pathname 1427 PPCODE:
1300 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)
1301 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:
1302 aio_unlink = REQ_UNLINK 1574 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1575 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1576 aio_readdir = EIO_READDIR
1305 PPCODE: 1577 PPCODE:
1306{ 1578{
1307 dREQ; 1579 dREQ;
1308 1580
1309 req->type = ix; 1581 req->type = ix;
1310 req->data = newSVsv (pathname); 1582 req_set_path1 (req, pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1583
1312
1313 REQ_SEND; 1584 REQ_SEND;
1314} 1585}
1315 1586
1316void 1587void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1588aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1589 ALIAS:
1322 aio_link = REQ_LINK 1590 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1591 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1592 aio_rename = EIO_RENAME
1325 PPCODE: 1593 PPCODE:
1326{ 1594{
1595 eio_wd wd2 = 0;
1327 dREQ; 1596 dREQ;
1328 1597
1329 req->type = ix; 1598 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1599 req_set_path1 (req, oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1332 req->data = newSVsv (newpath); 1601 req->int3 = (long)wd2;
1333 req->dataptr = SvPVbyte_nolen (req->data);
1334 1602
1335 REQ_SEND; 1603 REQ_SEND;
1336} 1604}
1337 1605
1338void 1606void
1339aio_busy (delay,callback=&PL_sv_undef) 1607aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1608 PPCODE:
1343{ 1609{
1610 eio_wd wd2 = 0;
1344 dREQ; 1611 dREQ;
1345 1612
1346 req->type = REQ_BUSY; 1613 req->type = EIO_RENAME;
1347 req->fd = delay < 0. ? 0 : delay; 1614 req_set_path1 (req, oldpath);
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1349 1616 req->int2 = flags;
1617 req->int3 = (long)wd2;
1618
1350 REQ_SEND; 1619 REQ_SEND;
1351} 1620}
1352 1621
1353void 1622void
1623aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1624 PPCODE:
1625{
1626 dREQ;
1627
1628 req->type = EIO_MKNOD;
1629 req->int2 = (mode_t)mode;
1630 req->offs = dev;
1631 req_set_path1 (req, pathname);
1632
1633 REQ_SEND;
1634}
1635
1636void
1637aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1638 ALIAS:
1639 aio_mtouch = EIO_MTOUCH
1640 aio_msync = EIO_MSYNC
1641 PPCODE:
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);
1718 dREQ;
1719
1720 req->type = EIO_CUSTOM;
1721 req->sv1 = newSVsv (fh);
1722 req->int1 = fd;
1723
1724 req->feed = fiemap;
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
1732
1733 REQ_SEND;
1734}
1735
1736void
1737aio_busy (double delay, SV *callback = &PL_sv_undef)
1738 PPCODE:
1739{
1740 dREQ;
1741
1742 req->type = EIO_BUSY;
1743 req->nv1 = delay < 0. ? 0. : delay;
1744
1745 REQ_SEND;
1746}
1747
1748void
1354aio_group (callback=&PL_sv_undef) 1749aio_group (SV *callback = &PL_sv_undef)
1355 SV * callback 1750 PPCODE:
1751{
1752 dREQ;
1753
1754 req->type = EIO_GROUP;
1755
1756 PUTBACK;
1757 req_submit (req);
1758 SPAGAIN;
1759
1760 XPUSHs (req_sv (req, aio_grp_stash));
1761}
1762
1763void
1764aio_nop (SV *callback = &PL_sv_undef)
1765 ALIAS:
1766 aio_nop = EIO_NOP
1767 aio_sync = EIO_SYNC
1768 PPCODE:
1769{
1770 dREQ;
1771
1772 req->type = ix;
1773
1774 REQ_SEND;
1775}
1776
1777int
1778aioreq_pri (int pri = NO_INIT)
1779 CODE:
1780 RETVAL = next_pri;
1781 if (items > 0)
1782 {
1783 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1784 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1785 next_pri = pri;
1786 }
1787 OUTPUT:
1788 RETVAL
1789
1790void
1791aioreq_nice (int nice = 0)
1792 CODE:
1793 nice = next_pri - nice;
1794 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1795 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1796 next_pri = nice;
1797
1798void
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 (...)
1824 PROTOTYPE:
1825 CODE:
1826 RETVAL = poll_cb ();
1827 OUTPUT:
1828 RETVAL
1829
1830void
1831poll_wait ()
1832 CODE:
1833 poll_wait ();
1834
1835int
1836nreqs ()
1837 CODE:
1838 RETVAL = eio_nreqs ();
1839 OUTPUT:
1840 RETVAL
1841
1842int
1843nready ()
1844 CODE:
1845 RETVAL = eio_nready ();
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850npending ()
1851 CODE:
1852 RETVAL = eio_npending ();
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857nthreads ()
1858 CODE:
1859 RETVAL = eio_nthreads ();
1860 OUTPUT:
1861 RETVAL
1862
1863int
1864fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1865 CODE:
1866 RETVAL = posix_fadvise (fh, offset, length, advice);
1867 OUTPUT:
1868 RETVAL
1869
1870IV
1871sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1872 CODE:
1873 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1874 OUTPUT:
1875 RETVAL
1876
1877void
1878mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1879 PPCODE:
1880 sv_unmagic (scalar, MMAP_MAGIC);
1881{
1882 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1884 if (addr == (void *)-1)
1885 XSRETURN_NO;
1886
1887 sv_force_normal (scalar);
1888
1889 /* we store the length in mg_obj, as namlen is I32 :/ */
1890 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1891 ->mg_obj = (SV *)length;
1892
1893 SvUPGRADE (scalar, SVt_PV); /* nop... */
1894
1895 if (!(prot & PROT_WRITE))
1896 SvREADONLY_on (scalar);
1897
1898 if (SvLEN (scalar))
1899 Safefree (SvPVX (scalar));
1900
1901 SvPVX (scalar) = (char *)addr;
1902 SvCUR_set (scalar, length);
1903 SvLEN_set (scalar, 0);
1904 SvPOK_only (scalar);
1905
1906 XSRETURN_YES;
1907}
1908
1909void
1910munmap (SV *scalar)
1911 CODE:
1912 sv_unmagic (scalar, MMAP_MAGIC);
1913
1914int
1915madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1916 ALIAS:
1917 mprotect = 1
1918 CODE:
1919{
1920 STRLEN svlen;
1921 void *addr = SvPVbyte (scalar, svlen);
1922 STRLEN len = SvUV (length);
1923
1924 if (offset < 0)
1925 offset += svlen;
1926
1927 if (offset < 0 || offset > svlen)
1928 croak ("offset outside of scalar");
1929
1930 if (!SvOK (length) || len + offset > svlen)
1931 len = svlen - offset;
1932
1933 addr = (void *)(((intptr_t)addr) + offset);
1934 eio_page_align (&addr, &len);
1935
1936 switch (ix)
1937 {
1938 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1939 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1940 }
1941}
1942 OUTPUT:
1943 RETVAL
1944
1945int
1946munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1947 CODE:
1948{
1949 STRLEN svlen;
1950 void *addr = SvPVbyte (scalar, svlen);
1951 size_t len = SvUV (length);
1952
1953 if (offset < 0)
1954 offset += svlen;
1955
1956 if (offset < 0 || offset > svlen)
1957 croak ("offset outside of scalar");
1958
1959 if (!SvOK (length) || len + offset > svlen)
1960 len = svlen - offset;
1961
1962 addr = (void *)(((intptr_t)addr) + offset);
1963 eio_page_align (&addr, &len);
1964#if _POSIX_MEMLOCK_RANGE
1965 RETVAL = munlock (addr, len);
1966#else
1967 RETVAL = EIO_ENOSYS ();
1968#endif
1969}
1970 OUTPUT:
1971 RETVAL
1972
1973int
1974munlockall ()
1975 CODE:
1976#if _POSIX_MEMLOCK
1977 munlockall ();
1978#else
1979 RETVAL = EIO_ENOSYS ();
1980#endif
1981 OUTPUT:
1982 RETVAL
1983
1984int
1985splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1986 CODE:
1987{
1988#if HAVE_LINUX_SPLICE
1989 loff_t off_in_, off_out_;
1990 RETVAL = splice (
1991 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1992 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1993 length, flags
1994 );
1995#else
1996 RETVAL = EIO_ENOSYS ();
1997#endif
1998}
1999 OUTPUT:
2000 RETVAL
2001
2002int
2003tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2004 CODE:
2005#if HAVE_LINUX_SPLICE
2006 RETVAL = tee (rfh, wfh, length, flags);
2007#else
2008 RETVAL = EIO_ENOSYS ();
2009#endif
2010 OUTPUT:
2011 RETVAL
2012
2013int
2014pipesize (aio_rfd rfh, int new_size = -1)
2015 PROTOTYPE: $;$
2016 CODE:
2017#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2018 if (new_size >= 0)
2019 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2020 else
2021 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2022#else
2023 errno = ENOSYS;
2024 RETVAL = -1;
2025#endif
2026 OUTPUT:
2027 RETVAL
2028
2029void
2030pipe2 (int flags = 0)
1356 PROTOTYPE: ;$ 2031 PROTOTYPE: ;$
1357 PPCODE: 2032 PPCODE:
1358{ 2033{
1359 dREQ; 2034 int fd[2];
2035 int res;
1360 2036
1361 req->type = REQ_GROUP; 2037 if (flags)
1362 req_send (req); 2038#if HAVE_PIPE2
2039 res = pipe2 (fd, flags);
2040#else
2041 res = (errno = ENOSYS, -1);
2042#endif
2043 else
2044 res = pipe (fd);
1363 2045
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2046 if (!res)
2047 {
2048 EXTEND (SP, 2);
2049 PUSHs (newmortalFH (fd[0], O_RDONLY));
2050 PUSHs (newmortalFH (fd[1], O_WRONLY));
2051 }
1365} 2052}
1366 2053
1367void 2054void _on_next_submit (SV *cb)
1368aio_nop (callback=&PL_sv_undef)
1369 SV * callback
1370 PPCODE:
1371{
1372 dREQ;
1373
1374 req->type = REQ_NOP;
1375
1376 REQ_SEND;
1377}
1378
1379void
1380aioreq_pri (int pri = DEFAULT_PRI)
1381 CODE:
1382 if (pri < PRI_MIN) pri = PRI_MIN;
1383 if (pri > PRI_MAX) pri = PRI_MAX;
1384 next_pri = pri + PRI_BIAS;
1385
1386void
1387aioreq_nice (int nice = 0)
1388 CODE:
1389 nice = next_pri - nice;
1390 if (nice < PRI_MIN) nice = PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX;
1392 next_pri = nice + PRI_BIAS;
1393
1394void
1395flush ()
1396 PROTOTYPE:
1397 CODE: 2055 CODE:
1398 while (nreqs) 2056 SvREFCNT_dec (on_next_submit);
1399 { 2057 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1400 poll_wait ();
1401 poll_cb (0);
1402 }
1403 2058
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
1404void 2069void
1405poll() 2070DESTROY (SV *self)
1406 PROTOTYPE:
1407 CODE: 2071 CODE:
1408 if (nreqs) 2072{
2073 aio_wd wd = SvAIO_WD (self);
2074#if HAVE_AT
1409 { 2075 {
1410 poll_wait (); 2076 SV *callback = &PL_sv_undef;
1411 poll_cb (0); 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;
1412 } 2083 }
1413 2084#else
1414int 2085 eio_wd_close_sync (wd);
1415poll_fileno() 2086#endif
1416 PROTOTYPE: 2087}
1417 CODE:
1418 RETVAL = respipe [0];
1419 OUTPUT:
1420 RETVAL
1421
1422int
1423poll_cb(...)
1424 PROTOTYPE:
1425 CODE:
1426 RETVAL = poll_cb (0);
1427 OUTPUT:
1428 RETVAL
1429
1430int
1431poll_some(int max = 0)
1432 PROTOTYPE: $
1433 CODE:
1434 RETVAL = poll_cb (max);
1435 OUTPUT:
1436 RETVAL
1437
1438void
1439poll_wait()
1440 PROTOTYPE:
1441 CODE:
1442 if (nreqs)
1443 poll_wait ();
1444
1445int
1446nreqs()
1447 PROTOTYPE:
1448 CODE:
1449 RETVAL = nreqs;
1450 OUTPUT:
1451 RETVAL
1452
1453PROTOTYPES: DISABLE
1454 2088
1455MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2089MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456 2090
1457void 2091void
1458cancel (aio_req_ornot req) 2092cancel (aio_req_ornot req)
1459 CODE: 2093 CODE:
1460 req_cancel (req); 2094 eio_cancel (req);
1461 2095
1462void 2096void
1463cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2097cb (aio_req_ornot req, SV *callback = NO_INIT)
1464 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
1465 SvREFCNT_dec (req->callback); 2107 SvREFCNT_dec (req->callback);
1466 req->callback = newSVsv (callback); 2108 req->callback = SvREFCNT_inc (cb_cv);
2109 }
2110}
1467 2111
1468MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2112MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1469 2113
1470void 2114void
1471add (aio_req grp, ...) 2115add (aio_req grp, ...)
1472 PPCODE: 2116 PPCODE:
1473{ 2117{
1474 int i; 2118 int i;
1475 aio_req req;
1476 2119
1477 if (grp->fd == 2) 2120 if (grp->int1 == 2)
1478 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");
1479 2122
1480 for (i = 1; i < items; ++i ) 2123 for (i = 1; i < items; ++i )
1481 { 2124 {
2125 aio_req req;
2126
1482 if (GIMME_V != G_VOID) 2127 if (GIMME_V != G_VOID)
1483 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2128 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1484 2129
1485 req = SvAIO_REQ (ST (i)); 2130 req = SvAIO_REQ (ST (i));
1486 2131
1487 if (req) 2132 if (req)
1488 { 2133 eio_grp_add (grp, req);
1489 ++grp->length;
1490 req->grp = grp;
1491
1492 req->grp_prev = 0;
1493 req->grp_next = grp->grp_first;
1494
1495 if (grp->grp_first)
1496 grp->grp_first->grp_prev = req;
1497
1498 grp->grp_first = req;
1499 }
1500 } 2134 }
1501} 2135}
1502 2136
1503void 2137void
1504cancel_subs (aio_req_ornot req) 2138cancel_subs (aio_req_ornot req)
… …
1508void 2142void
1509result (aio_req grp, ...) 2143result (aio_req grp, ...)
1510 CODE: 2144 CODE:
1511{ 2145{
1512 int i; 2146 int i;
2147 AV *av;
2148
2149 grp->errorno = errno;
2150
1513 AV *av = newAV (); 2151 av = newAV ();
2152 av_extend (av, items - 1);
1514 2153
1515 for (i = 1; i < items; ++i ) 2154 for (i = 1; i < items; ++i )
1516 av_push (av, newSVsv (ST (i))); 2155 av_push (av, newSVsv (ST (i)));
1517 2156
1518 SvREFCNT_dec (grp->data); 2157 SvREFCNT_dec (grp->sv1);
1519 grp->data = (SV *)av; 2158 grp->sv1 = (SV *)av;
1520} 2159}
2160
2161void
2162errno (aio_req grp, int errorno = errno)
2163 CODE:
2164 grp->errorno = errorno;
1521 2165
1522void 2166void
1523limit (aio_req grp, int limit) 2167limit (aio_req grp, int limit)
1524 CODE: 2168 CODE:
1525 grp->fd2 = limit; 2169 eio_grp_limit (grp, limit);
1526 aio_grp_feed (grp);
1527 2170
1528void 2171void
1529feed (aio_req grp, SV *callback=&PL_sv_undef) 2172feed (aio_req grp, SV *callback = &PL_sv_undef)
1530 CODE: 2173 CODE:
1531{ 2174{
1532 SvREFCNT_dec (grp->fh2); 2175 SvREFCNT_dec (grp->sv2);
1533 grp->fh2 = newSVsv (callback); 2176 grp->sv2 = newSVsv (callback);
2177 grp->feed = aio_grp_feed;
1534 2178
1535 if (grp->fd2 <= 0) 2179 if (grp->int2 <= 0)
1536 grp->fd2 = 2; 2180 grp->int2 = 2;
1537 2181
1538 aio_grp_feed (grp); 2182 eio_grp_limit (grp, grp->int2);
1539} 2183}
1540 2184

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