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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.246 by root, Fri Jun 23 21:43:51 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 unsigned int started, wanted;
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146#endif
147
148#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150
151/* worker threads management */
152static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
153
154typedef struct worker {
155 /* locked by wrklock */
156 struct worker *prev, *next;
157
158 pthread_t tid;
159
160 /* locked by reslock, reqlock or wrklock */
161 aio_req req; /* currently processed request */
162 void *dbuf;
163 DIR *dirp;
164} worker;
165
166static worker wrk_first = { &wrk_first, &wrk_first, 0 };
167
168static void worker_clear (worker *wrk)
169{
170 if (wrk->dirp)
171 { 218 {
172 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) */
173 wrk->dirp = 0; 220 char scratch[3072];
174 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
175 222
176 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
177 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
178 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
179 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
180 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
181}
182 228
183static void worker_free (worker *wrk) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
184{
185 wrk->next->prev = wrk->prev;
186 wrk->prev->next = wrk->next;
187
188 free (wrk);
189}
190
191static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
194
195/*
196 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation.
199 */
200typedef struct {
201 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
202 int size;
203} reqq;
204
205static reqq req_queue;
206static reqq res_queue;
207
208int reqq_push (reqq *q, aio_req req)
209{
210 int pri = req->pri;
211 req->next = 0;
212
213 if (q->qe[pri])
214 {
215 q->qe[pri]->next = req;
216 q->qe[pri] = req;
217 }
218 else
219 q->qe[pri] = q->qs[pri] = req;
220
221 return q->size++;
222}
223
224aio_req reqq_shift (reqq *q)
225{
226 int pri;
227
228 if (!q->size)
229 return 0; 230 return;
230 231
231 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
232 234
233 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
234 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
235 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
236
237 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
238 { 244 {
239 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
240 q->qe[pri] = 0;
241 246
242 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
243 } 255 }
244 } 256 }
245 257
246 abort (); 258done:
247} 259 req->result = 0;
248 260
249static int poll_cb (int max); 261#else
250static 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
251static void req_free (aio_req req); 282static void req_destroy (aio_req req);
252static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
253 284
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
254/* must be called at most once */ 299/* must be called at most once */
255static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
256{ 302{
257 if (!req->self) 303 if (!req->self)
258 { 304 {
259 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
261 } 307 }
262 308
263 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
264} 310}
265 311
266static 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)
267{ 320{
268 MAGIC *mg; 321 MAGIC *mg;
269 322
270 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")))
271 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
272 329
273 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
274 331
275 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
276} 333}
277 334
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
278static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
279{ 373{
280 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
281 { 375 {
282 int old_len = grp->length;
283
284 if (grp->fh2 && SvOK (grp->fh2))
285 {
286 dSP; 376 dSP;
287 377
288 ENTER; 378 ENTER;
289 SAVETMPS; 379 SAVETMPS;
290 PUSHMARK (SP); 380 PUSHMARK (SP);
291 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
292 PUTBACK; 382 PUTBACK;
293 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294 SPAGAIN; 384 SPAGAIN;
295 FREETMPS; 385 FREETMPS;
296 LEAVE; 386 LEAVE;
297 }
298
299 /* stop if no progress has been made */
300 if (old_len == grp->length)
301 {
302 SvREFCNT_dec (grp->fh2);
303 grp->fh2 = 0;
304 break;
305 }
306 } 387 }
307} 388}
308 389
309static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
310{ 392{
311 --grp->length; 393 eio_submit (req);
312 394
313 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
314 aio_grp_feed (grp);
315
316 /* finish, if done */
317 if (!grp->length && grp->fd)
318 { 396 {
319 req_invoke (grp); 397 dSP;
320 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);
321 } 405 }
322} 406}
323 407
324static void poll_wait () 408static int
409req_invoke (eio_req *req)
325{ 410{
326 fd_set rfd; 411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
327 413
328 while (nreqs) 414 if (!EIO_CANCELLED (req) && req->callback)
329 { 415 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req)
350{
351 dSP; 416 dSP;
352 417 static SV *sv_result_cache; /* caches the result integer SV */
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 418 SV *sv_result;
354 {
355 errno = req->errorno;
356 419
357 ENTER; 420 ENTER;
358 SAVETMPS; 421 SAVETMPS;
359 PUSHMARK (SP); 422 PUSHMARK (SP);
360 EXTEND (SP, 1); 423 EXTEND (SP, 1);
361 424
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
362 switch (req->type) 438 switch (req->type)
363 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
364 case REQ_READDIR: 444 case EIO_READDIR:
365 { 445 {
366 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
367 447
368 if (req->result >= 0) 448 if (req->result >= 0)
369 { 449 {
370 int i; 450 int i;
371 char *buf = req->data2ptr; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
372 AV *av = newAV (); 453 AV *av = newAV ();
373 454
374 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
375 456
376 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
377 { 458 {
378 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
379 462
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
380 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);
381 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
382 } 493 }
383 494
384 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
385 } 496 }
386 497
387 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))));
388 } 502 }
389 break; 503 break;
390 504
391 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:
392 { 511 {
393 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
394 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));
395 524
396 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
397 PUTBACK;
398 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
399 SPAGAIN;
400 526
401 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
402 540
403 PUSHMARK (SP); 541 PUSHs (rv);
404 XPUSHs (sv_2mortal (fh));
405 } 542 }
543
406 break; 544 break;
407 545
408 case REQ_GROUP: 546 case EIO_GROUP:
409 req->fd = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
410 548
411 if (req->data) 549 if (req->sv1)
412 { 550 {
413 int i; 551 int i;
414 AV *av = (AV *)req->data; 552 AV *av = (AV *)req->sv1;
415 553
416 EXTEND (SP, AvFILL (av) + 1); 554 EXTEND (SP, AvFILL (av) + 1);
417 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
418 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
419 } 557 }
420 break; 558 break;
421 559
422 case REQ_NOP: 560 case EIO_NOP:
423 case REQ_BUSY: 561 case EIO_BUSY:
424 break; 562 break;
425 563
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
426 default: 641 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
428 break; 643 break;
429 } 644 }
430 645
646 errno = req->errorno;
431 647
432 PUTBACK; 648 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
434 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;
435 656
436 FREETMPS; 657 FREETMPS;
437 LEAVE; 658 LEAVE;
659
660 PUTBACK;
438 } 661 }
439 662
440 if (req->grp) 663 return !!SvTRUE (ERRSV);
441 {
442 aio_req grp = req->grp;
443
444 /* unlink request */
445 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
446 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
447
448 if (grp->grp_first == req)
449 grp->grp_first = req->grp_next;
450
451 aio_grp_dec (grp);
452 }
453
454 if (SvTRUE (ERRSV))
455 {
456 req_free (req);
457 croak (0);
458 }
459} 664}
460 665
461static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
462{ 668{
463 if (req->self) 669 if (req->self)
464 { 670 {
465 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
466 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
467 } 673 }
468 674
469 SvREFCNT_dec (req->data);
470 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
471 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
472 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
473 Safefree (req->statdata);
474 680
475 if (req->type == REQ_READDIR)
476 free (req->data2ptr);
477
478 Safefree (req); 681 free (req);
479} 682}
480 683
684static void
481static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
482{ 686{
483 aio_req sub;
484
485 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
486 return; 688 return;
487 689
488 SvREFCNT_dec (grp->fh2); 690 SvREFCNT_dec (grp->sv2);
489 grp->fh2 = 0; 691 grp->sv2 = 0;
490 692
491 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
492 req_cancel (sub);
493} 694}
494 695
495static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
496{ 698{
497 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
498 700 croak ("IO::AIO: unable to initialize result pipe");
499 req_cancel_subs (req);
500} 701}
501 702
502static int poll_cb (int max) 703static void
704poll_wait (void)
503{ 705{
504 dSP; 706 while (eio_nreqs ())
505 int count = 0; 707 {
506 int do_croak = 0; 708 int size;
507 aio_req req;
508 709
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{
509 for (;;) 726 for (;;)
510 { 727 {
511 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)
512 { 836 {
513 LOCK (reslock); 837 path = AvARRAY (rv)[1];
514 req = reqq_shift (&res_queue); 838 wdob = AvARRAY (rv)[0];
515 839
516 if (req) 840 if (SvOK (wdob))
517 { 841 {
518 if (!res_queue.size) 842 *wd = SvAIO_WD (wdob);
519 { 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
520 /* read any signals sent by the worker threads */
521 char buf [32];
522 while (read (respipe [0], buf, 32) == 32)
523 ;
524 }
525 }
526
527 UNLOCK (reslock);
528
529 if (!req)
530 break;
531
532 --nreqs;
533
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length)
537 {
538 req->fd = 1; /* mark request as delayed */
539 continue;
540 } 844 }
541 else 845 else
542 { 846 *wd = EIO_INVALID_WD;
543 if (req->type == REQ_READ)
544 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547 SvREADONLY_off (req->data);
548
549 if (req->statdata)
550 {
551 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552 PL_laststatval = req->result;
553 PL_statcache = *(req->statdata);
554 }
555
556 req_invoke (req);
557
558 count++;
559 }
560
561 req_free (req);
562 } 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 }
563 858
564 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)));
565 break; 882 break;
566 883
567 poll_wait (); 884 default:
568 885 req->type = type_path;
569 max = 0; 886 req_set_path1 (req, fh_or_path);
887 break;
570 } 888 }
571
572 return count;
573} 889}
574 890
575static void *aio_proc(void *arg); 891XS(boot_IO__AIO) ecb_cold;
576 892
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void req_send (aio_req req)
612{
613 while (started < wanted && nreqs >= started)
614 start_thread ();
615
616 ++nreqs;
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 {
651 end_thread ();
652 cur--;
653 }
654
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660}
661
662static void create_pipe ()
663{
664 if (pipe (respipe))
665 croak ("unable to initialize result pipe");
666
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668 croak ("cannot set result pipe to nonblocking mode");
669
670 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671 croak ("cannot set result pipe to nonblocking mode");
672}
673
674/*****************************************************************************/
675/* work around various missing functions */
676
677#if !HAVE_PREADWRITE
678# define pread aio_pread
679# define pwrite aio_pwrite
680
681/*
682 * make our pread/pwrite safe against themselves, but not against
683 * normal read/write by using a mutex. slows down execution a lot,
684 * but that's your problem, not mine.
685 */
686static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
687
688static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
689{
690 ssize_t res;
691 off_t ooffset;
692
693 LOCK (preadwritelock);
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = read (fd, buf, count);
697 lseek (fd, ooffset, SEEK_SET);
698 UNLOCK (preadwritelock);
699
700 return res;
701}
702
703static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
704{
705 ssize_t res;
706 off_t ooffset;
707
708 LOCK (preadwritelock);
709 ooffset = lseek (fd, 0, SEEK_CUR);
710 lseek (fd, offset, SEEK_SET);
711 res = write (fd, buf, count);
712 lseek (fd, offset, SEEK_SET);
713 UNLOCK (preadwritelock);
714
715 return res;
716}
717#endif
718
719#if !HAVE_FDATASYNC
720# define fdatasync fsync
721#endif
722
723#if !HAVE_READAHEAD
724# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725
726static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
727{
728 dBUF;
729
730 while (count > 0)
731 {
732 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
733
734 pread (fd, aio_buf, len, offset);
735 offset += len;
736 count -= len;
737 }
738
739 errno = 0;
740}
741
742#endif
743
744#if !HAVE_READDIR_R
745# define readdir_r aio_readdir_r
746
747static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
748
749static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
750{
751 struct dirent *e;
752 int errorno;
753
754 LOCK (readdirlock);
755
756 e = readdir (dirp);
757 errorno = errno;
758
759 if (e)
760 {
761 *res = ent;
762 strcpy (ent->d_name, e->d_name);
763 }
764 else
765 *res = 0;
766
767 UNLOCK (readdirlock);
768
769 errno = errorno;
770 return e ? 0 : -1;
771}
772#endif
773
774/* sendfile always needs emulation */
775static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
776{
777 ssize_t res;
778
779 if (!count)
780 return 0;
781
782#if HAVE_SENDFILE
783# if __linux
784 res = sendfile (ofd, ifd, &offset, count);
785
786# elif __freebsd
787 /*
788 * Of course, the freebsd sendfile is a dire hack with no thoughts
789 * wasted on making it similar to other I/O functions.
790 */
791 {
792 off_t sbytes;
793 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
794
795 if (res < 0 && sbytes)
796 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
797 res = sbytes;
798 }
799
800# elif __hpux
801 res = sendfile (ofd, ifd, offset, count, 0, 0);
802
803# elif __solaris
804 {
805 struct sendfilevec vec;
806 size_t sbytes;
807
808 vec.sfv_fd = ifd;
809 vec.sfv_flag = 0;
810 vec.sfv_off = offset;
811 vec.sfv_len = count;
812
813 res = sendfilev (ofd, &vec, 1, &sbytes);
814
815 if (res < 0 && sbytes)
816 res = sbytes;
817 }
818
819# endif
820#else
821 res = -1;
822 errno = ENOSYS;
823#endif
824
825 if (res < 0
826 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
827#if __solaris
828 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
829#endif
830 )
831 )
832 {
833 /* emulate sendfile. this is a major pain in the ass */
834 dBUF;
835
836 res = 0;
837
838 while (count)
839 {
840 ssize_t cnt;
841
842 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
843
844 if (cnt <= 0)
845 {
846 if (cnt && !res) res = -1;
847 break;
848 }
849
850 cnt = write (ofd, aio_buf, cnt);
851
852 if (cnt <= 0)
853 {
854 if (cnt && !res) res = -1;
855 break;
856 }
857
858 offset += cnt;
859 res += cnt;
860 count -= cnt;
861 }
862 }
863
864 return res;
865}
866
867/* read a full directory */
868static void scandir_ (aio_req req, worker *self)
869{
870 DIR *dirp;
871 union
872 {
873 struct dirent d;
874 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
875 } *u;
876 struct dirent *entp;
877 char *name, *names;
878 int memlen = 4096;
879 int memofs = 0;
880 int res = 0;
881 int errorno;
882
883 LOCK (wrklock);
884 self->dirp = dirp = opendir (req->dataptr);
885 self->dbuf = u = malloc (sizeof (*u));
886 req->data2ptr = names = malloc (memlen);
887 UNLOCK (wrklock);
888
889 if (dirp && u && names)
890 for (;;)
891 {
892 errno = 0;
893 readdir_r (dirp, &u->d, &entp);
894
895 if (!entp)
896 break;
897
898 name = entp->d_name;
899
900 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
901 {
902 int len = strlen (name) + 1;
903
904 res++;
905
906 while (memofs + len > memlen)
907 {
908 memlen *= 2;
909 LOCK (wrklock);
910 req->data2ptr = names = realloc (names, memlen);
911 UNLOCK (wrklock);
912
913 if (!names)
914 break;
915 }
916
917 memcpy (names + memofs, name, len);
918 memofs += len;
919 }
920 }
921
922 if (errno)
923 res = -1;
924
925 req->result = res;
926}
927
928/*****************************************************************************/
929
930static void *aio_proc (void *thr_arg)
931{
932 aio_req req;
933 int type;
934 worker *self = (worker *)thr_arg;
935
936 do
937 {
938 LOCK (reqlock);
939
940 for (;;)
941 {
942 self->req = req = reqq_shift (&req_queue);
943
944 if (req)
945 break;
946
947 pthread_cond_wait (&reqwait, &reqlock);
948 }
949
950 UNLOCK (reqlock);
951
952 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954
955 if (!(req->flags & FLAG_CANCELLED))
956 switch (type)
957 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
962 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
963
964 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
965 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
966 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
967
968 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
969 case REQ_CLOSE: req->result = close (req->fd); break;
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
975
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break;
979
980 case REQ_BUSY:
981 {
982 struct timeval tv;
983
984 tv.tv_sec = req->fd;
985 tv.tv_usec = req->fd2;
986
987 req->result = select (0, 0, 0, 0, &tv);
988 }
989
990 case REQ_GROUP:
991 case REQ_NOP:
992 case REQ_QUIT:
993 break;
994
995 default:
996 req->result = ENOSYS;
997 break;
998 }
999
1000 req->errorno = errno;
1001
1002 LOCK (reslock);
1003
1004 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1);
1007
1008 self->req = 0;
1009 worker_clear (self);
1010
1011 UNLOCK (reslock);
1012 }
1013 while (type != REQ_QUIT);
1014
1015 LOCK (wrklock);
1016 worker_free (self);
1017 UNLOCK (wrklock);
1018
1019 return 0;
1020}
1021
1022/*****************************************************************************/
1023
1024static void atfork_prepare (void)
1025{
1026 LOCK (wrklock);
1027 LOCK (reqlock);
1028 LOCK (reslock);
1029#if !HAVE_PREADWRITE
1030 LOCK (preadwritelock);
1031#endif
1032#if !HAVE_READDIR_R
1033 LOCK (readdirlock);
1034#endif
1035}
1036
1037static void atfork_parent (void)
1038{
1039#if !HAVE_READDIR_R
1040 UNLOCK (readdirlock);
1041#endif
1042#if !HAVE_PREADWRITE
1043 UNLOCK (preadwritelock);
1044#endif
1045 UNLOCK (reslock);
1046 UNLOCK (reqlock);
1047 UNLOCK (wrklock);
1048}
1049
1050static void atfork_child (void)
1051{
1052 aio_req prv;
1053
1054 while (prv = reqq_shift (&req_queue))
1055 req_free (prv);
1056
1057 while (prv = reqq_shift (&res_queue))
1058 req_free (prv);
1059
1060 while (wrk_first.next != &wrk_first)
1061 {
1062 worker *wrk = wrk_first.next;
1063
1064 if (wrk->req)
1065 req_free (wrk->req);
1066
1067 worker_clear (wrk);
1068 worker_free (wrk);
1069 }
1070
1071 started = 0;
1072 nreqs = 0;
1073
1074 close (respipe [0]);
1075 close (respipe [1]);
1076 create_pipe ();
1077
1078 atfork_parent ();
1079}
1080
1081#define dREQ \
1082 aio_req req; \
1083 int req_pri = next_pri; \
1084 next_pri = DEFAULT_PRI + PRI_BIAS; \
1085 \
1086 if (SvOK (callback) && !SvROK (callback)) \
1087 croak ("callback must be undef or of reference type"); \
1088 \
1089 Newz (0, req, 1, aio_cb); \
1090 if (!req) \
1091 croak ("out of memory during aio_req allocation"); \
1092 \
1093 req->callback = newSVsv (callback); \
1094 req->pri = req_pri
1095
1096#define REQ_SEND \
1097 req_send (req); \
1098 \
1099 if (GIMME_V != G_VOID) \
1100 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1101
1102MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
1103 894
1104PROTOTYPES: ENABLE 895PROTOTYPES: ENABLE
1105 896
1106BOOT: 897BOOT:
1107{ 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 (F_DUPFD_CLOEXEC)
1002
1003 const_iv (F_OFD_GETLK)
1004 const_iv (F_OFD_SETLK)
1005 const_iv (F_OFD_GETLKW)
1006
1007 const_iv (FIFREEZE)
1008 const_iv (FITHAW)
1009 const_iv (FITRIM)
1010 const_iv (FICLONE)
1011 const_iv (FICLONERANGE)
1012 const_iv (FIDEDUPERANGE)
1013
1014 const_iv (FS_IOC_GETFLAGS)
1015 const_iv (FS_IOC_SETFLAGS)
1016 const_iv (FS_IOC_GETVERSION)
1017 const_iv (FS_IOC_SETVERSION)
1018 const_iv (FS_IOC_FIEMAP)
1019 const_iv (FS_IOC_FSGETXATTR)
1020 const_iv (FS_IOC_FSSETXATTR)
1021 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1022 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1023 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1024
1025 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1026
1027 const_iv (FS_SECRM_FL)
1028 const_iv (FS_UNRM_FL)
1029 const_iv (FS_COMPR_FL)
1030 const_iv (FS_SYNC_FL)
1031 const_iv (FS_IMMUTABLE_FL)
1032 const_iv (FS_APPEND_FL)
1033 const_iv (FS_NODUMP_FL)
1034 const_iv (FS_NOATIME_FL)
1035 const_iv (FS_DIRTY_FL)
1036 const_iv (FS_COMPRBLK_FL)
1037 const_iv (FS_NOCOMP_FL)
1038 const_iv (FS_ENCRYPT_FL)
1039 const_iv (FS_BTREE_FL)
1040 const_iv (FS_INDEX_FL)
1041 const_iv (FS_JOURNAL_DATA_FL)
1042 const_iv (FS_NOTAIL_FL)
1043 const_iv (FS_DIRSYNC_FL)
1044 const_iv (FS_TOPDIR_FL)
1045 const_iv (FS_FL_USER_MODIFIABLE)
1046
1047 const_iv (FS_XFLAG_REALTIME)
1048 const_iv (FS_XFLAG_PREALLOC)
1049 const_iv (FS_XFLAG_IMMUTABLE)
1050 const_iv (FS_XFLAG_APPEND)
1051 const_iv (FS_XFLAG_SYNC)
1052 const_iv (FS_XFLAG_NOATIME)
1053 const_iv (FS_XFLAG_NODUMP)
1054 const_iv (FS_XFLAG_RTINHERIT)
1055 const_iv (FS_XFLAG_PROJINHERIT)
1056 const_iv (FS_XFLAG_NOSYMLINKS)
1057 const_iv (FS_XFLAG_EXTSIZE)
1058 const_iv (FS_XFLAG_EXTSZINHERIT)
1059 const_iv (FS_XFLAG_NODEFRAG)
1060 const_iv (FS_XFLAG_FILESTREAM)
1061 const_iv (FS_XFLAG_DAX)
1062 const_iv (FS_XFLAG_HASATTR)
1063
1064 const_iv (FIEMAP_FLAG_SYNC)
1065 const_iv (FIEMAP_FLAG_XATTR)
1066 const_iv (FIEMAP_FLAGS_COMPAT)
1067 const_iv (FIEMAP_EXTENT_LAST)
1068 const_iv (FIEMAP_EXTENT_UNKNOWN)
1069 const_iv (FIEMAP_EXTENT_DELALLOC)
1070 const_iv (FIEMAP_EXTENT_ENCODED)
1071 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1072 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1073 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1074 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1075 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1076 const_iv (FIEMAP_EXTENT_MERGED)
1077 const_iv (FIEMAP_EXTENT_SHARED)
1078
1079 const_iv (SPLICE_F_MOVE)
1080 const_iv (SPLICE_F_NONBLOCK)
1081 const_iv (SPLICE_F_MORE)
1082 const_iv (SPLICE_F_GIFT)
1083
1084 /* these are libeio constants, and are independent of gendef0 */
1085 const_eio (SEEK_SET)
1086 const_eio (SEEK_CUR)
1087 const_eio (SEEK_END)
1088
1089 const_eio (MCL_FUTURE)
1090 const_eio (MCL_CURRENT)
1091
1092 const_eio (MS_ASYNC)
1093 const_eio (MS_INVALIDATE)
1094 const_eio (MS_SYNC)
1095
1096 const_eio (MT_MODIFY)
1097
1098 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1099 const_eio (SYNC_FILE_RANGE_WRITE)
1100 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1101
1102 const_eio (FALLOC_FL_KEEP_SIZE)
1103 const_eio (FALLOC_FL_PUNCH_HOLE)
1104 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1105 const_eio (FALLOC_FL_ZERO_RANGE)
1106
1107 const_eio (RENAME_NOREPLACE)
1108 const_eio (RENAME_EXCHANGE)
1109 const_eio (RENAME_WHITEOUT)
1110
1111 const_eio (READDIR_DENTS)
1112 const_eio (READDIR_DIRS_FIRST)
1113 const_eio (READDIR_STAT_ORDER)
1114 const_eio (READDIR_FOUND_UNKNOWN)
1115
1116 const_eio (DT_UNKNOWN)
1117 const_eio (DT_FIFO)
1118 const_eio (DT_CHR)
1119 const_eio (DT_DIR)
1120 const_eio (DT_BLK)
1121 const_eio (DT_REG)
1122 const_eio (DT_LNK)
1123 const_eio (DT_SOCK)
1124 const_eio (DT_WHT)
1125 };
1126
1108 HV *stash = gv_stashpv ("IO::AIO", 1); 1127 aio_stash = gv_stashpv ("IO::AIO" , 1);
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1128 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1129 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1130 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1112 1131
1113 create_pipe (); 1132 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1133 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1115}
1116 1134
1135 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1136
1137 reinit ();
1138}
1139
1117void 1140void
1118min_parallel (int nthreads) 1141reinit ()
1119 PROTOTYPE: $ 1142 PROTOTYPE:
1120 1143
1121void 1144void
1122max_parallel (int nthreads) 1145max_poll_reqs (unsigned int nreqs)
1123 PROTOTYPE: $
1124
1125int
1126max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 1146 PROTOTYPE: $
1128 CODE: 1147 CODE:
1129 RETVAL = max_outstanding; 1148 eio_set_max_poll_reqs (nreqs);
1149
1150void
1151max_poll_time (double nseconds)
1152 PROTOTYPE: $
1153 CODE:
1154 eio_set_max_poll_time (nseconds);
1155
1156void
1157min_parallel (unsigned int nthreads)
1158 PROTOTYPE: $
1159 CODE:
1160 eio_set_min_parallel (nthreads);
1161
1162void
1163max_parallel (unsigned int nthreads)
1164 PROTOTYPE: $
1165 CODE:
1166 eio_set_max_parallel (nthreads);
1167
1168void
1169max_idle (unsigned int nthreads)
1170 PROTOTYPE: $
1171 CODE:
1172 eio_set_max_idle (nthreads);
1173
1174void
1175idle_timeout (unsigned int seconds)
1176 PROTOTYPE: $
1177 CODE:
1178 eio_set_idle_timeout (seconds);
1179
1180void
1181max_outstanding (unsigned int maxreqs)
1182 PROTOTYPE: $
1183 CODE:
1130 max_outstanding = maxreqs; 1184 max_outstanding = maxreqs;
1131 OUTPUT:
1132 RETVAL
1133 1185
1134void 1186void
1135aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1187aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1136 SV * pathname
1137 int flags
1138 int mode
1139 SV * callback
1140 PROTOTYPE: $$$;$
1141 PPCODE: 1188 PPCODE:
1142{ 1189{
1143 dREQ; 1190 dREQ;
1144 1191
1145 req->type = REQ_OPEN; 1192 req->type = EIO_WD_OPEN;
1146 req->data = newSVsv (pathname); 1193 req_set_path1 (req, pathname);
1147 req->dataptr = SvPVbyte_nolen (req->data);
1148 req->fd = flags;
1149 req->mode = mode;
1150 1194
1151 REQ_SEND; 1195 REQ_SEND;
1152} 1196}
1153 1197
1154void 1198void
1199aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1200 PPCODE:
1201{
1202 dREQ;
1203
1204 req->type = EIO_OPEN;
1205 req_set_path1 (req, pathname);
1206 req->int1 = flags;
1207 req->int2 = mode;
1208
1209 REQ_SEND;
1210}
1211
1212void
1155aio_close (fh,callback=&PL_sv_undef) 1213aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1156 SV * fh
1157 SV * callback
1158 PROTOTYPE: $;$
1159 ALIAS: 1214 ALIAS:
1160 aio_close = REQ_CLOSE
1161 aio_fsync = REQ_FSYNC 1215 aio_fsync = EIO_FSYNC
1162 aio_fdatasync = REQ_FDATASYNC 1216 aio_fdatasync = EIO_FDATASYNC
1217 aio_syncfs = EIO_SYNCFS
1163 PPCODE: 1218 PPCODE:
1164{ 1219{
1220 int fd = s_fileno_croak (fh, 0);
1165 dREQ; 1221 dREQ;
1166 1222
1167 req->type = ix; 1223 req->type = ix;
1168 req->fh = newSVsv (fh); 1224 req->sv1 = newSVsv (fh);
1169 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1225 req->int1 = fd;
1170 1226
1171 REQ_SEND (req); 1227 REQ_SEND;
1172} 1228}
1173 1229
1174void 1230void
1231aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1232 PPCODE:
1233{
1234 int fd = s_fileno_croak (fh, 0);
1235 dREQ;
1236
1237 req->type = EIO_SYNC_FILE_RANGE;
1238 req->sv1 = newSVsv (fh);
1239 req->int1 = fd;
1240 req->offs = offset;
1241 req->size = nbytes;
1242 req->int2 = flags;
1243
1244 REQ_SEND;
1245}
1246
1247void
1248aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1249 PPCODE:
1250{
1251 int fd = s_fileno_croak (fh, 0);
1252 dREQ;
1253
1254 req->type = EIO_FALLOCATE;
1255 req->sv1 = newSVsv (fh);
1256 req->int1 = fd;
1257 req->int2 = mode;
1258 req->offs = offset;
1259 req->size = len;
1260
1261 REQ_SEND;
1262}
1263
1264void
1265aio_close (SV *fh, SV *callback = &PL_sv_undef)
1266 PPCODE:
1267{
1268 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1269 int fd = s_fileno_croak (fh, 0);
1270 dREQ;
1271
1272 if (expect_false (close_fd < 0))
1273 {
1274 int pipefd [2];
1275
1276 if (
1277#ifdef _WIN32
1278 _pipe (pipefd, 1, _O_BINARY) < 0
1279#else
1280 pipe (pipefd) < 0
1281 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1282#endif
1283 || close (pipefd [1]) < 0
1284 )
1285 abort (); /*D*/
1286
1287 close_fd = pipefd [0];
1288 }
1289
1290 req->type = EIO_DUP2;
1291 req->int1 = close_fd;
1292 req->sv2 = newSVsv (fh);
1293 req->int2 = fd;
1294
1295 REQ_SEND;
1296}
1297
1298void
1299aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1300 PPCODE:
1301{
1302 int fd = s_fileno_croak (fh, 0);
1303 dREQ;
1304
1305 req->type = EIO_SEEK;
1306 req->sv1 = newSVsv (fh);
1307 req->int1 = fd;
1308 req->offs = SvVAL64 (offset);
1309 req->int2 = whence;
1310
1311 REQ_SEND;
1312}
1313
1314void
1175aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1315aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 UV length
1179 SV * data
1180 UV dataoffset
1181 SV * callback
1182 ALIAS: 1316 ALIAS:
1183 aio_read = REQ_READ 1317 aio_read = EIO_READ
1184 aio_write = REQ_WRITE 1318 aio_write = EIO_WRITE
1185 PROTOTYPE: $$$$$;$
1186 PPCODE: 1319 PPCODE:
1187{ 1320{
1188 aio_req req;
1189 STRLEN svlen; 1321 STRLEN svlen;
1322 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1190 char *svptr = SvPVbyte (data, svlen); 1323 char *svptr = SvPVbyte (data, svlen);
1191 1324 UV len = SvUV (length);
1192 SvUPGRADE (data, SVt_PV);
1193 SvPOK_on (data);
1194 1325
1195 if (dataoffset < 0) 1326 if (dataoffset < 0)
1196 dataoffset += svlen; 1327 dataoffset += svlen;
1197 1328
1198 if (dataoffset < 0 || dataoffset > svlen) 1329 if (dataoffset < 0 || dataoffset > svlen)
1199 croak ("data offset outside of string"); 1330 croak ("dataoffset outside of data scalar");
1200 1331
1201 if (ix == REQ_WRITE) 1332 if (ix == EIO_WRITE)
1202 { 1333 {
1203 /* write: check length and adjust. */ 1334 /* write: check length and adjust. */
1204 if (length < 0 || length + dataoffset > svlen) 1335 if (!SvOK (length) || len + dataoffset > svlen)
1205 length = svlen - dataoffset; 1336 len = svlen - dataoffset;
1206 } 1337 }
1207 else 1338 else
1208 { 1339 {
1209 /* read: grow scalar as necessary */ 1340 /* read: check type and grow scalar as necessary */
1341 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210 svptr = SvGROW (data, length + dataoffset); 1342 svptr = sv_grow (data, len + dataoffset + 1);
1343 else if (SvCUR (data) < len + dataoffset)
1344 croak ("length + dataoffset outside of scalar, and cannot grow");
1211 } 1345 }
1212
1213 if (length < 0)
1214 croak ("length must not be negative");
1215 1346
1216 { 1347 {
1217 dREQ; 1348 dREQ;
1218 1349
1219 req->type = ix; 1350 req->type = ix;
1220 req->fh = newSVsv (fh); 1351 req->sv1 = newSVsv (fh);
1221 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1352 req->int1 = fd;
1222 : IoOFP (sv_2io (fh))); 1353 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223 req->offset = offset; 1354 req->size = len;
1224 req->length = length;
1225 req->data = SvREFCNT_inc (data); 1355 req->sv2 = SvREFCNT_inc (data);
1226 req->dataptr = (char *)svptr + dataoffset; 1356 req->ptr2 = (char *)svptr + dataoffset;
1357 req->stroffset = dataoffset;
1227 1358
1228 if (!SvREADONLY (data)) 1359 if (!SvREADONLY (data))
1229 { 1360 {
1230 SvREADONLY_on (data); 1361 SvREADONLY_on (data);
1231 req->data2ptr = (void *)data; 1362 req->flags |= FLAG_SV2_RO_OFF;
1232 } 1363 }
1233 1364
1234 REQ_SEND; 1365 REQ_SEND;
1235 } 1366 }
1236} 1367}
1237 1368
1238void 1369void
1239aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1370aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1240 SV * out_fh 1371 ALIAS:
1241 SV * in_fh 1372 aio_ioctl = EIO_IOCTL
1242 UV in_offset 1373 aio_fcntl = EIO_FCNTL
1243 UV length
1244 SV * callback
1245 PROTOTYPE: $$$$;$
1246 PPCODE: 1374 PPCODE:
1247{ 1375{
1248 dREQ; 1376 int fd = s_fileno_croak (fh, 0);
1377 char *svptr;
1249 1378
1250 req->type = REQ_SENDFILE; 1379 if (SvPOK (arg) || !SvNIOK (arg))
1251 req->fh = newSVsv (out_fh);
1252 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1253 req->fh2 = newSVsv (in_fh);
1254 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1255 req->offset = in_offset;
1256 req->length = length;
1257
1258 REQ_SEND;
1259}
1260
1261void
1262aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1263 SV * fh
1264 UV offset
1265 IV length
1266 SV * callback
1267 PROTOTYPE: $$$;$
1268 PPCODE:
1269{
1270 dREQ;
1271
1272 req->type = REQ_READAHEAD;
1273 req->fh = newSVsv (fh);
1274 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1275 req->offset = offset;
1276 req->length = length;
1277
1278 REQ_SEND;
1279}
1280
1281void
1282aio_stat (fh_or_path,callback=&PL_sv_undef)
1283 SV * fh_or_path
1284 SV * callback
1285 ALIAS:
1286 aio_stat = REQ_STAT
1287 aio_lstat = REQ_LSTAT
1288 PPCODE:
1289{
1290 dREQ;
1291
1292 New (0, req->statdata, 1, Stat_t);
1293 if (!req->statdata)
1294 { 1380 {
1295 req_free (req); 1381 STRLEN svlen;
1296 croak ("out of memory during aio_req->statdata allocation"); 1382 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1297 } 1383#ifdef IOCPARM_LEN
1384 STRLEN need = IOCPARM_LEN (request);
1385#else
1386 STRLEN need = 256;
1387#endif
1298 1388
1299 if (SvPOK (fh_or_path)) 1389 if (svlen < need)
1300 { 1390 svptr = SvGROW (arg, need);
1301 req->type = ix;
1302 req->data = newSVsv (fh_or_path);
1303 req->dataptr = SvPVbyte_nolen (req->data);
1304 } 1391 }
1305 else 1392 else
1393 svptr = (char *)SvIV (arg);
1394
1306 { 1395 {
1396 dREQ;
1397
1307 req->type = REQ_FSTAT; 1398 req->type = ix;
1308 req->fh = newSVsv (fh_or_path); 1399 req->sv1 = newSVsv (fh);
1309 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1400 req->int1 = fd;
1401 req->int2 = (long)request;
1402 req->sv2 = SvREFCNT_inc (arg);
1403 req->ptr2 = svptr;
1404
1405 REQ_SEND;
1310 } 1406 }
1407}
1408
1409void
1410aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1411 ALIAS:
1412 aio_readlink = EIO_READLINK
1413 aio_realpath = EIO_REALPATH
1414 PPCODE:
1415{
1416 dREQ;
1417
1418 req->type = ix;
1419 req_set_path1 (req, pathname);
1311 1420
1312 REQ_SEND; 1421 REQ_SEND;
1313} 1422}
1314 1423
1315void 1424void
1316aio_unlink (pathname,callback=&PL_sv_undef) 1425aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1317 SV * pathname 1426 PPCODE:
1318 SV * callback 1427{
1428 int ifd = s_fileno_croak (in_fh , 0);
1429 int ofd = s_fileno_croak (out_fh, 1);
1430 dREQ;
1431
1432 req->type = EIO_SENDFILE;
1433 req->sv1 = newSVsv (out_fh);
1434 req->int1 = ofd;
1435 req->sv2 = newSVsv (in_fh);
1436 req->int2 = ifd;
1437 req->offs = in_offset;
1438 req->size = length;
1439
1440 REQ_SEND;
1441}
1442
1443void
1444aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1445 PPCODE:
1446{
1447 int fd = s_fileno_croak (fh, 0);
1448 dREQ;
1449
1450 req->type = EIO_READAHEAD;
1451 req->sv1 = newSVsv (fh);
1452 req->int1 = fd;
1453 req->offs = offset;
1454 req->size = length;
1455
1456 REQ_SEND;
1457}
1458
1459void
1460aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1319 ALIAS: 1461 ALIAS:
1462 aio_stat = EIO_STAT
1463 aio_lstat = EIO_LSTAT
1464 aio_statvfs = EIO_STATVFS
1465 PPCODE:
1466{
1467 dREQ;
1468
1469 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1470
1471 REQ_SEND;
1472}
1473
1474UV
1475major (UV dev)
1476 ALIAS:
1477 minor = 1
1478 CODE:
1479 RETVAL = ix ? minor (dev) : major (dev);
1480 OUTPUT:
1481 RETVAL
1482
1483UV
1484makedev (UV maj, UV min)
1485 CODE:
1486 RETVAL = makedev (maj, min);
1487 OUTPUT:
1488 RETVAL
1489
1490void
1491aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1492 PPCODE:
1493{
1494 dREQ;
1495
1496 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1497 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1498 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1499
1500 REQ_SEND;
1501}
1502
1503void
1504aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1505 PPCODE:
1506{
1507 dREQ;
1508
1509 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1510 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1511
1512 REQ_SEND;
1513}
1514
1515void
1516aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1517 PPCODE:
1518{
1519 dREQ;
1520
1521 req->int2 = mode;
1522 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1523
1524 REQ_SEND;
1525}
1526
1527void
1528aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1529 PPCODE:
1530{
1531 dREQ;
1532
1533 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1534 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1535 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1536
1537 REQ_SEND;
1538}
1539
1540void
1541aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1542 PPCODE:
1543{
1544 dREQ;
1545
1546 req->type = EIO_READDIR;
1547 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1548
1549 if (flags & EIO_READDIR_DENTS)
1550 req->int1 |= EIO_READDIR_CUSTOM2;
1551
1552 req_set_path1 (req, pathname);
1553
1554 REQ_SEND;
1555}
1556
1557void
1558aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1559 PPCODE:
1560{
1561 dREQ;
1562
1563 req->type = EIO_MKDIR;
1564 req->int2 = mode;
1565 req_set_path1 (req, pathname);
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1572 ALIAS:
1320 aio_unlink = REQ_UNLINK 1573 aio_unlink = EIO_UNLINK
1321 aio_rmdir = REQ_RMDIR 1574 aio_rmdir = EIO_RMDIR
1322 aio_readdir = REQ_READDIR 1575 aio_readdir = EIO_READDIR
1323 PPCODE: 1576 PPCODE:
1324{ 1577{
1325 dREQ; 1578 dREQ;
1326 1579
1327 req->type = ix; 1580 req->type = ix;
1328 req->data = newSVsv (pathname); 1581 req_set_path1 (req, pathname);
1329 req->dataptr = SvPVbyte_nolen (req->data); 1582
1330
1331 REQ_SEND; 1583 REQ_SEND;
1332} 1584}
1333 1585
1334void 1586void
1335aio_link (oldpath,newpath,callback=&PL_sv_undef) 1587aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1336 SV * oldpath
1337 SV * newpath
1338 SV * callback
1339 ALIAS: 1588 ALIAS:
1340 aio_link = REQ_LINK 1589 aio_link = EIO_LINK
1341 aio_symlink = REQ_SYMLINK 1590 aio_symlink = EIO_SYMLINK
1342 aio_rename = REQ_RENAME 1591 aio_rename = EIO_RENAME
1343 PPCODE: 1592 PPCODE:
1344{ 1593{
1594 eio_wd wd2 = 0;
1345 dREQ; 1595 dREQ;
1346 1596
1347 req->type = ix; 1597 req->type = ix;
1348 req->fh = newSVsv (oldpath); 1598 req_set_path1 (req, oldpath);
1349 req->data2ptr = SvPVbyte_nolen (req->fh); 1599 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1350 req->data = newSVsv (newpath); 1600 req->int3 = (long)wd2;
1351 req->dataptr = SvPVbyte_nolen (req->data);
1352 1601
1353 REQ_SEND; 1602 REQ_SEND;
1354} 1603}
1355 1604
1356void 1605void
1357aio_busy (delay,callback=&PL_sv_undef) 1606aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1358 double delay
1359 SV * callback
1360 PPCODE: 1607 PPCODE:
1361{ 1608{
1609 eio_wd wd2 = 0;
1362 dREQ; 1610 dREQ;
1363 1611
1364 req->type = REQ_BUSY; 1612 req->type = EIO_RENAME;
1365 req->fd = delay < 0. ? 0 : delay; 1613 req_set_path1 (req, oldpath);
1366 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1614 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1367 1615 req->int2 = flags;
1616 req->int3 = (long)wd2;
1617
1368 REQ_SEND; 1618 REQ_SEND;
1369} 1619}
1370 1620
1371void 1621void
1622aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req->type = EIO_MKNOD;
1628 req->int2 = (mode_t)mode;
1629 req->offs = dev;
1630 req_set_path1 (req, pathname);
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1637 ALIAS:
1638 aio_mtouch = EIO_MTOUCH
1639 aio_msync = EIO_MSYNC
1640 PPCODE:
1641{
1642 STRLEN svlen;
1643 char *svptr = SvPVbyte (data, svlen);
1644 UV len = SvUV (length);
1645
1646 if (flags < 0)
1647 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1648
1649 if (offset < 0)
1650 offset += svlen;
1651
1652 if (offset < 0 || offset > svlen)
1653 croak ("offset outside of scalar");
1654
1655 if (!SvOK (length) || len + offset > svlen)
1656 len = svlen - offset;
1657
1658 {
1659 dREQ;
1660
1661 req->type = ix;
1662 req->sv2 = SvREFCNT_inc (data);
1663 req->ptr2 = (char *)svptr + offset;
1664 req->size = len;
1665 req->int1 = flags;
1666
1667 REQ_SEND;
1668 }
1669}
1670
1671void
1672aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1673 PPCODE:
1674{
1675 STRLEN svlen;
1676 char *svptr = SvPVbyte (data, svlen);
1677 UV len = SvUV (length);
1678
1679 if (offset < 0)
1680 offset += svlen;
1681
1682 if (offset < 0 || offset > svlen)
1683 croak ("offset outside of scalar");
1684
1685 if (!SvOK (length) || len + offset > svlen)
1686 len = svlen - offset;
1687
1688 {
1689 dREQ;
1690
1691 req->type = EIO_MLOCK;
1692 req->sv2 = SvREFCNT_inc (data);
1693 req->ptr2 = (char *)svptr + offset;
1694 req->size = len;
1695
1696 REQ_SEND;
1697 }
1698}
1699
1700void
1701aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1702 PPCODE:
1703{
1704 dREQ;
1705
1706 req->type = EIO_MLOCKALL;
1707 req->int1 = flags;
1708
1709 REQ_SEND;
1710}
1711
1712void
1713aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1714 PPCODE:
1715{
1716 int fd = s_fileno_croak (fh, 0);
1717 dREQ;
1718
1719 req->type = EIO_CUSTOM;
1720 req->sv1 = newSVsv (fh);
1721 req->int1 = fd;
1722
1723 req->feed = fiemap;
1724#if HAVE_FIEMAP
1725 /* keep our fingers crossed that the next two types are 64 bit */
1726 req->offs = start;
1727 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1728 req->int2 = flags;
1729 req->int3 = SvOK (count) ? SvIV (count) : -1;
1730#endif
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_busy (double delay, SV *callback = &PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = EIO_BUSY;
1742 req->nv1 = delay < 0. ? 0. : delay;
1743
1744 REQ_SEND;
1745}
1746
1747void
1372aio_group (callback=&PL_sv_undef) 1748aio_group (SV *callback = &PL_sv_undef)
1373 SV * callback 1749 PPCODE:
1750{
1751 dREQ;
1752
1753 req->type = EIO_GROUP;
1754
1755 PUTBACK;
1756 req_submit (req);
1757 SPAGAIN;
1758
1759 XPUSHs (req_sv (req, aio_grp_stash));
1760}
1761
1762void
1763aio_nop (SV *callback = &PL_sv_undef)
1764 ALIAS:
1765 aio_nop = EIO_NOP
1766 aio_sync = EIO_SYNC
1767 PPCODE:
1768{
1769 dREQ;
1770
1771 req->type = ix;
1772
1773 REQ_SEND;
1774}
1775
1776int
1777aioreq_pri (int pri = NO_INIT)
1778 CODE:
1779 RETVAL = next_pri;
1780 if (items > 0)
1781 {
1782 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1783 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1784 next_pri = pri;
1785 }
1786 OUTPUT:
1787 RETVAL
1788
1789void
1790aioreq_nice (int nice = 0)
1791 CODE:
1792 nice = next_pri - nice;
1793 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1794 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1795 next_pri = nice;
1796
1797void
1798flush ()
1799 CODE:
1800 while (eio_nreqs ())
1801 {
1802 poll_wait ();
1803 poll_cb ();
1804 }
1805
1806int
1807poll ()
1808 CODE:
1809 poll_wait ();
1810 RETVAL = poll_cb ();
1811 OUTPUT:
1812 RETVAL
1813
1814int
1815poll_fileno ()
1816 CODE:
1817 RETVAL = s_epipe_fd (&respipe);
1818 OUTPUT:
1819 RETVAL
1820
1821int
1822poll_cb (...)
1823 PROTOTYPE:
1824 CODE:
1825 RETVAL = poll_cb ();
1826 OUTPUT:
1827 RETVAL
1828
1829void
1830poll_wait ()
1831 CODE:
1832 poll_wait ();
1833
1834int
1835nreqs ()
1836 CODE:
1837 RETVAL = eio_nreqs ();
1838 OUTPUT:
1839 RETVAL
1840
1841int
1842nready ()
1843 CODE:
1844 RETVAL = eio_nready ();
1845 OUTPUT:
1846 RETVAL
1847
1848int
1849npending ()
1850 CODE:
1851 RETVAL = eio_npending ();
1852 OUTPUT:
1853 RETVAL
1854
1855int
1856nthreads ()
1857 CODE:
1858 RETVAL = eio_nthreads ();
1859 OUTPUT:
1860 RETVAL
1861
1862int
1863fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1864 CODE:
1865 RETVAL = posix_fadvise (fh, offset, length, advice);
1866 OUTPUT:
1867 RETVAL
1868
1869IV
1870sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1871 CODE:
1872 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1873 OUTPUT:
1874 RETVAL
1875
1876void
1877mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1878 PPCODE:
1879 sv_unmagic (scalar, MMAP_MAGIC);
1880{
1881 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1882 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1883 if (addr == (void *)-1)
1884 XSRETURN_NO;
1885
1886 sv_force_normal (scalar);
1887
1888 /* we store the length in mg_obj, as namlen is I32 :/ */
1889 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1890 ->mg_obj = (SV *)length;
1891
1892 SvUPGRADE (scalar, SVt_PV); /* nop... */
1893
1894 if (!(prot & PROT_WRITE))
1895 SvREADONLY_on (scalar);
1896
1897 if (SvLEN (scalar))
1898 Safefree (SvPVX (scalar));
1899
1900 SvPVX (scalar) = (char *)addr;
1901 SvCUR_set (scalar, length);
1902 SvLEN_set (scalar, 0);
1903 SvPOK_only (scalar);
1904
1905 XSRETURN_YES;
1906}
1907
1908void
1909munmap (SV *scalar)
1910 CODE:
1911 sv_unmagic (scalar, MMAP_MAGIC);
1912
1913int
1914madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1915 ALIAS:
1916 mprotect = 1
1917 CODE:
1918{
1919 STRLEN svlen;
1920 void *addr = SvPVbyte (scalar, svlen);
1921 STRLEN len = SvUV (length);
1922
1923 if (offset < 0)
1924 offset += svlen;
1925
1926 if (offset < 0 || offset > svlen)
1927 croak ("offset outside of scalar");
1928
1929 if (!SvOK (length) || len + offset > svlen)
1930 len = svlen - offset;
1931
1932 addr = (void *)(((intptr_t)addr) + offset);
1933 eio_page_align (&addr, &len);
1934
1935 switch (ix)
1936 {
1937 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1938 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1939 }
1940}
1941 OUTPUT:
1942 RETVAL
1943
1944int
1945munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1946 CODE:
1947{
1948 STRLEN svlen;
1949 void *addr = SvPVbyte (scalar, svlen);
1950 size_t len = SvUV (length);
1951
1952 if (offset < 0)
1953 offset += svlen;
1954
1955 if (offset < 0 || offset > svlen)
1956 croak ("offset outside of scalar");
1957
1958 if (!SvOK (length) || len + offset > svlen)
1959 len = svlen - offset;
1960
1961 addr = (void *)(((intptr_t)addr) + offset);
1962 eio_page_align (&addr, &len);
1963#if _POSIX_MEMLOCK_RANGE
1964 RETVAL = munlock (addr, len);
1965#else
1966 RETVAL = EIO_ENOSYS ();
1967#endif
1968}
1969 OUTPUT:
1970 RETVAL
1971
1972int
1973munlockall ()
1974 CODE:
1975#if _POSIX_MEMLOCK
1976 munlockall ();
1977#else
1978 RETVAL = EIO_ENOSYS ();
1979#endif
1980 OUTPUT:
1981 RETVAL
1982
1983int
1984splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1985 CODE:
1986{
1987#if HAVE_LINUX_SPLICE
1988 loff_t off_in_, off_out_;
1989 RETVAL = splice (
1990 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1991 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1992 length, flags
1993 );
1994#else
1995 RETVAL = EIO_ENOSYS ();
1996#endif
1997}
1998 OUTPUT:
1999 RETVAL
2000
2001int
2002tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2003 CODE:
2004#if HAVE_LINUX_SPLICE
2005 RETVAL = tee (rfh, wfh, length, flags);
2006#else
2007 RETVAL = EIO_ENOSYS ();
2008#endif
2009 OUTPUT:
2010 RETVAL
2011
2012int
2013pipesize (aio_rfd rfh, int new_size = -1)
2014 PROTOTYPE: $;$
2015 CODE:
2016#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2017 if (new_size >= 0)
2018 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2019 else
2020 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2021#else
2022 errno = ENOSYS;
2023 RETVAL = -1;
2024#endif
2025 OUTPUT:
2026 RETVAL
2027
2028void
2029pipe2 (int flags = 0)
1374 PROTOTYPE: ;$ 2030 PROTOTYPE: ;$
1375 PPCODE: 2031 PPCODE:
1376{ 2032{
1377 dREQ; 2033 int fd[2];
2034 int res;
1378 2035
1379 req->type = REQ_GROUP; 2036 if (flags)
1380 req_send (req); 2037#if HAVE_PIPE2
2038 res = pipe2 (fd, flags);
2039#else
2040 res = (errno = ENOSYS, -1);
2041#endif
2042 else
2043 res = pipe (fd);
1381 2044
1382 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2045 if (!res)
2046 {
2047 EXTEND (SP, 2);
2048 PUSHs (newmortalFH (fd[0], O_RDONLY));
2049 PUSHs (newmortalFH (fd[1], O_WRONLY));
2050 }
1383} 2051}
1384 2052
1385void 2053void _on_next_submit (SV *cb)
1386aio_nop (callback=&PL_sv_undef)
1387 SV * callback
1388 PPCODE:
1389{
1390 dREQ;
1391
1392 req->type = REQ_NOP;
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aioreq_pri (int pri = DEFAULT_PRI)
1399 CODE:
1400 if (pri < PRI_MIN) pri = PRI_MIN;
1401 if (pri > PRI_MAX) pri = PRI_MAX;
1402 next_pri = pri + PRI_BIAS;
1403
1404void
1405aioreq_nice (int nice = 0)
1406 CODE:
1407 nice = next_pri - nice;
1408 if (nice < PRI_MIN) nice = PRI_MIN;
1409 if (nice > PRI_MAX) nice = PRI_MAX;
1410 next_pri = nice + PRI_BIAS;
1411
1412void
1413flush ()
1414 PROTOTYPE:
1415 CODE: 2054 CODE:
1416 while (nreqs) 2055 SvREFCNT_dec (on_next_submit);
1417 { 2056 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1418 poll_wait ();
1419 poll_cb (0);
1420 }
1421 2057
2058PROTOTYPES: DISABLE
2059
2060MODULE = IO::AIO PACKAGE = IO::AIO::WD
2061
2062BOOT:
2063{
2064 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2065 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2066}
2067
1422void 2068void
1423poll() 2069DESTROY (SV *self)
1424 PROTOTYPE:
1425 CODE: 2070 CODE:
1426 if (nreqs) 2071{
2072 aio_wd wd = SvAIO_WD (self);
2073#if HAVE_AT
1427 { 2074 {
1428 poll_wait (); 2075 SV *callback = &PL_sv_undef;
1429 poll_cb (0); 2076 dREQ; /* clobbers next_pri :/ */
2077 next_pri = req->pri; /* restore next_pri */
2078 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2079 req->type = EIO_WD_CLOSE;
2080 req->wd = wd;
2081 REQ_SEND;
1430 } 2082 }
1431 2083#else
1432int 2084 eio_wd_close_sync (wd);
1433poll_fileno() 2085#endif
1434 PROTOTYPE: 2086}
1435 CODE:
1436 RETVAL = respipe [0];
1437 OUTPUT:
1438 RETVAL
1439
1440int
1441poll_cb(...)
1442 PROTOTYPE:
1443 CODE:
1444 RETVAL = poll_cb (0);
1445 OUTPUT:
1446 RETVAL
1447
1448int
1449poll_some(int max = 0)
1450 PROTOTYPE: $
1451 CODE:
1452 RETVAL = poll_cb (max);
1453 OUTPUT:
1454 RETVAL
1455
1456void
1457poll_wait()
1458 PROTOTYPE:
1459 CODE:
1460 if (nreqs)
1461 poll_wait ();
1462
1463int
1464nreqs()
1465 PROTOTYPE:
1466 CODE:
1467 RETVAL = nreqs;
1468 OUTPUT:
1469 RETVAL
1470
1471PROTOTYPES: DISABLE
1472 2087
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2088MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 2089
1475void 2090void
1476cancel (aio_req_ornot req) 2091cancel (aio_req_ornot req)
1477 CODE: 2092 CODE:
1478 req_cancel (req); 2093 eio_cancel (req);
1479 2094
1480void 2095void
1481cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2096cb (aio_req_ornot req, SV *callback = NO_INIT)
1482 CODE: 2097 PPCODE:
2098{
2099 if (GIMME_V != G_VOID)
2100 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2101
2102 if (items > 1)
2103 {
2104 SV *cb_cv = get_cb (callback);
2105
1483 SvREFCNT_dec (req->callback); 2106 SvREFCNT_dec (req->callback);
1484 req->callback = newSVsv (callback); 2107 req->callback = SvREFCNT_inc (cb_cv);
2108 }
2109}
1485 2110
1486MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2111MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1487 2112
1488void 2113void
1489add (aio_req grp, ...) 2114add (aio_req grp, ...)
1490 PPCODE: 2115 PPCODE:
1491{ 2116{
1492 int i; 2117 int i;
1493 aio_req req;
1494 2118
1495 if (grp->fd == 2) 2119 if (grp->int1 == 2)
1496 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2120 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1497 2121
1498 for (i = 1; i < items; ++i ) 2122 for (i = 1; i < items; ++i )
1499 { 2123 {
2124 aio_req req;
2125
1500 if (GIMME_V != G_VOID) 2126 if (GIMME_V != G_VOID)
1501 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2127 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1502 2128
1503 req = SvAIO_REQ (ST (i)); 2129 req = SvAIO_REQ (ST (i));
1504 2130
1505 if (req) 2131 if (req)
1506 { 2132 eio_grp_add (grp, req);
1507 ++grp->length;
1508 req->grp = grp;
1509
1510 req->grp_prev = 0;
1511 req->grp_next = grp->grp_first;
1512
1513 if (grp->grp_first)
1514 grp->grp_first->grp_prev = req;
1515
1516 grp->grp_first = req;
1517 }
1518 } 2133 }
1519} 2134}
1520 2135
1521void 2136void
1522cancel_subs (aio_req_ornot req) 2137cancel_subs (aio_req_ornot req)
… …
1526void 2141void
1527result (aio_req grp, ...) 2142result (aio_req grp, ...)
1528 CODE: 2143 CODE:
1529{ 2144{
1530 int i; 2145 int i;
2146 AV *av;
2147
2148 grp->errorno = errno;
2149
1531 AV *av = newAV (); 2150 av = newAV ();
2151 av_extend (av, items - 1);
1532 2152
1533 for (i = 1; i < items; ++i ) 2153 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 2154 av_push (av, newSVsv (ST (i)));
1535 2155
1536 SvREFCNT_dec (grp->data); 2156 SvREFCNT_dec (grp->sv1);
1537 grp->data = (SV *)av; 2157 grp->sv1 = (SV *)av;
1538} 2158}
2159
2160void
2161errno (aio_req grp, int errorno = errno)
2162 CODE:
2163 grp->errorno = errorno;
1539 2164
1540void 2165void
1541limit (aio_req grp, int limit) 2166limit (aio_req grp, int limit)
1542 CODE: 2167 CODE:
1543 grp->fd2 = limit; 2168 eio_grp_limit (grp, limit);
1544 aio_grp_feed (grp);
1545 2169
1546void 2170void
1547feed (aio_req grp, SV *callback=&PL_sv_undef) 2171feed (aio_req grp, SV *callback = &PL_sv_undef)
1548 CODE: 2172 CODE:
1549{ 2173{
1550 SvREFCNT_dec (grp->fh2); 2174 SvREFCNT_dec (grp->sv2);
1551 grp->fh2 = newSVsv (callback); 2175 grp->sv2 = newSVsv (callback);
2176 grp->feed = aio_grp_feed;
1552 2177
1553 if (grp->fd2 <= 0) 2178 if (grp->int2 <= 0)
1554 grp->fd2 = 2; 2179 grp->int2 = 2;
1555 2180
1556 aio_grp_feed (grp); 2181 eio_grp_limit (grp, grp->int2);
1557} 2182}
1558 2183

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