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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.83 by root, Sat Oct 28 00:17:30 2006 UTC vs.
Revision 1.227 by root, Sat Sep 7 23:18:23 2013 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
21# include <sys/mman.h>
22#endif
23
34# if __linux 24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
42#ifdef _WIN32
43
44 // perl overrides all those nice libc functions
45
46 #undef malloc
47 #undef free
48 #undef open
49 #undef read
50 #undef write
51 #undef send
52 #undef recv
53 #undef stat
54 #undef lstat
55 #undef fstat
56 #undef truncate
57 #undef ftruncate
58 #undef open
59 #undef link
60 #undef close
61 #undef unlink
62 #undef mkdir
63 #undef rmdir
64 #undef rename
65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
79#else
80
81 #include <sys/time.h>
35# include <sys/sendfile.h> 82 #include <sys/select.h>
36# elif __freebsd 83 #include <unistd.h>
37# include <sys/socket.h> 84 #include <utime.h>
38# include <sys/uio.h> 85 #include <signal.h>
39# elif __hpux 86
40# include <sys/socket.h> 87 #define EIO_STRUCT_STAT Stat_t
41# elif __solaris /* not yet */ 88
42# include <sys/sendfile.h> 89#endif
90
91/*****************************************************************************/
92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
43# else 140# else
44# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 142# endif
46#endif 143#endif
47 144
48/* used for struct dirent, AIX doesn't provide it */ 145/* defines all sorts of constants to 0 unless they are already defined */
49#ifndef NAME_MAX 146#include "def0.h"
50# define NAME_MAX 4096
51#endif
52 147
53#ifndef PTHREAD_STACK_MIN 148#ifndef makedev
54/* care for broken platforms, e.g. windows */ 149# define makedev(maj,min) (((maj) << 8) | (min))
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
76#endif 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
77 157
78/* buffer size for various temporary buffers */ 158#if PAGESIZE <= 0
79#define AIO_BUFSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
80 161
81#define dBUF \ 162/*****************************************************************************/
82 char *aio_buf; \ 163
83 LOCK (wrklock); \ 164static void
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 165fiemap (eio_req *req)
85 UNLOCK (wrklock); \ 166{
86 if (!aio_buf) \ 167 req->result = -1;
168
169#if HAVE_FIEMAP
170 /* assume some c99 */
171 struct fiemap *fiemap = 0;
172 size_t end_offset;
173 int count = req->int3;
174
175 req->flags |= EIO_FLAG_PTR1_FREE;
176
177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
181
182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
183 errno = ENOMEM;
184 if (!fiemap)
87 return -1; 185 return;
88 186
89enum { 187 req->ptr1 = fiemap;
90 REQ_QUIT,
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_MKNOD, REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101};
102 188
103#define AIO_REQ_KLASS "IO::AIO::REQ" 189 fiemap->fm_start = req->offs;
104#define AIO_GRP_KLASS "IO::AIO::GRP" 190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
105 193
106typedef struct aio_cb 194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
107{ 195 return;
108 struct aio_cb *volatile next;
109 196
110 SV *data, *callback; 197 if (req->int3 >= 0 /* not autosizing */
111 SV *fh, *fh2; 198 || !fiemap->fm_mapped_extents /* no more extents */
112 void *dataptr, *data2ptr; 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
113 Stat_t *statdata; 200 goto done;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 201
118 STRLEN dataoffset; 202 /* else we have to loop -
119 int type; 203 * it would be tempting (actually I tried that first) to just query the
120 int fd, fd2; 204 * number of extents needed, but linux often feels like not returning all
121 int errorno; 205 * extents, without telling us it left any out. this complicates
122 mode_t mode; /* open */ 206 * this quite a bit.
207 */
123 208
124 unsigned char flags; 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
125 unsigned char pri;
126 210
127 SV *self; /* the perl counterpart of this request, if any */ 211 for (;;)
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129} aio_cb;
130
131enum {
132 FLAG_CANCELLED = 0x01,
133};
134
135typedef aio_cb *aio_req;
136typedef aio_cb *aio_req_ornot;
137
138enum {
139 PRI_MIN = -4,
140 PRI_MAX = 4,
141
142 DEFAULT_PRI = 0,
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150
151#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153#else
154# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155#endif
156
157#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159
160/* worker threads management */
161static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
162
163typedef struct worker {
164 /* locked by wrklock */
165 struct worker *prev, *next;
166
167 pthread_t tid;
168
169 /* locked by reslock, reqlock or wrklock */
170 aio_req req; /* currently processed request */
171 void *dbuf;
172 DIR *dirp;
173} worker;
174
175static worker wrk_first = { &wrk_first, &wrk_first, 0 };
176
177static void worker_clear (worker *wrk)
178{
179 if (wrk->dirp)
180 { 212 {
181 closedir (wrk->dirp); 213 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
182 wrk->dirp = 0; 214 char scratch[3072];
183 } 215 struct fiemap *incmap = (struct fiemap *)scratch;
184 216
185 if (wrk->dbuf) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
186 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
187 free (wrk->dbuf); 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
188 wrk->dbuf = 0; 220 incmap->fm_flags = fiemap->fm_flags;
189 } 221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
190}
191 222
192static void worker_free (worker *wrk) 223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
193{
194 wrk->next->prev = wrk->prev;
195 wrk->prev->next = wrk->next;
196
197 free (wrk);
198}
199
200static volatile unsigned int nreqs, nready, npending;
201static volatile unsigned int max_outstanding = 0xffffffff;
202static int respipe [2];
203
204static pthread_mutex_t reslock = AIO_MUTEX_INIT;
205static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
206static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
207
208#if WORDREAD_UNSAFE
209
210static unsigned int get_nready ()
211{
212 unsigned int retval;
213
214 LOCK (reqlock);
215 retval = nready;
216 UNLOCK (reqlock);
217
218 return retval;
219}
220
221static unsigned int get_npending ()
222{
223 unsigned int retval;
224
225 LOCK (reslock);
226 retval = npending;
227 UNLOCK (reslock);
228
229 return retval;
230}
231
232#else
233
234# define get_nready() nready
235# define get_npending() npending
236
237#endif
238
239/*
240 * a somewhat faster data structure might be nice, but
241 * with 8 priorities this actually needs <20 insns
242 * per shift, the most expensive operation.
243 */
244typedef struct {
245 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
246 int size;
247} reqq;
248
249static reqq req_queue;
250static reqq res_queue;
251
252int reqq_push (reqq *q, aio_req req)
253{
254 int pri = req->pri;
255 req->next = 0;
256
257 if (q->qe[pri])
258 {
259 q->qe[pri]->next = req;
260 q->qe[pri] = req;
261 }
262 else
263 q->qe[pri] = q->qs[pri] = req;
264
265 return q->size++;
266}
267
268aio_req reqq_shift (reqq *q)
269{
270 int pri;
271
272 if (!q->size)
273 return 0; 224 return;
274 225
275 --q->size; 226 if (!incmap->fm_mapped_extents)
227 goto done;
276 228
277 for (pri = NUM_PRI; pri--; ) 229 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
278 { 230 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
279 aio_req req = q->qs[pri]; 231 errno = ENOMEM;
280
281 if (req) 232 if (!fiemap)
233 return;
234
235 req->ptr1 = fiemap;
236
237 for (count = 0; count < incmap->fm_mapped_extents; ++count)
282 { 238 {
283 if (!(q->qs[pri] = req->next)) 239 struct fiemap_extent *e = incmap->fm_extents + count;
284 q->qe[pri] = 0;
285 240
286 return req; 241 if (e->fe_logical + e->fe_length >= end_offset)
242 goto done;
243
244 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
245
246 if (e->fe_flags & FIEMAP_EXTENT_LAST)
247 goto done;
248
287 } 249 }
288 } 250 }
289 251
290 abort (); 252done:
291} 253 req->result = 0;
292 254
293static int poll_cb (int max); 255#else
294static void req_invoke (aio_req req); 256 errno = ENOSYS;
257#endif
258}
259
260/*****************************************************************************/
261
262enum {
263 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
264};
265
266typedef eio_req *aio_req;
267typedef eio_req *aio_req_ornot;
268typedef eio_wd aio_wd;
269
270static SV *on_next_submit;
271static int next_pri = EIO_PRI_DEFAULT;
272static int max_outstanding;
273
274static s_epipe respipe;
275
295static void req_free (aio_req req); 276static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 277static void req_cancel (aio_req req);
297 278
279static void
280want_poll (void)
281{
282 /* write a dummy byte to the pipe so fh becomes ready */
283 s_epipe_signal (&respipe);
284}
285
286static void
287done_poll (void)
288{
289 /* read any signals sent by the worker threads */
290 s_epipe_drain (&respipe);
291}
292
298/* must be called at most once */ 293/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 294static SV *
295req_sv (aio_req req, HV *stash)
300{ 296{
301 if (!req->self) 297 if (!req->self)
302 { 298 {
303 req->self = (SV *)newHV (); 299 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 300 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 301 }
306 302
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 303 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 304}
309 305
310static aio_req SvAIO_REQ (SV *sv) 306static SV *
307newSVaio_wd (aio_wd wd)
308{
309 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
310}
311
312static aio_req
313SvAIO_REQ (SV *sv)
311{ 314{
312 MAGIC *mg; 315 MAGIC *mg;
313 316
314 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 317 if (!SvROK (sv)
318 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
319 || (SvSTASH (SvRV (sv)) != aio_grp_stash
320 && SvSTASH (SvRV (sv)) != aio_req_stash
321 && !sv_derived_from (sv, "IO::AIO::REQ")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 322 croak ("object of class IO::AIO::REQ expected");
316 323
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 324 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 325
319 return mg ? (aio_req)mg->mg_ptr : 0; 326 return mg ? (aio_req)mg->mg_ptr : 0;
320} 327}
321 328
329static aio_wd
330SvAIO_WD (SV *sv)
331{
332 if (!SvROK (sv)
333 || SvTYPE (SvRV (sv)) != SVt_PVMG
334 || SvSTASH (SvRV (sv)) != aio_wd_stash)
335 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
336
337 return (aio_wd)(long)SvIVX (SvRV (sv));
338}
339
340static void
322static void aio_grp_feed (aio_req grp) 341aio_grp_feed (aio_req grp)
323{ 342{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 343 if (grp->sv2 && SvOK (grp->sv2))
325 { 344 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 345 dSP;
331 346
332 ENTER; 347 ENTER;
333 SAVETMPS; 348 SAVETMPS;
334 PUSHMARK (SP); 349 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 350 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 351 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 352 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 353 SPAGAIN;
339 FREETMPS; 354 FREETMPS;
340 LEAVE; 355 LEAVE;
341 }
342
343 /* stop if no progress has been made */
344 if (old_len == grp->length)
345 {
346 SvREFCNT_dec (grp->fh2);
347 grp->fh2 = 0;
348 break;
349 }
350 } 356 }
351} 357}
352 358
353static void aio_grp_dec (aio_req grp) 359static void
360req_submit (eio_req *req)
354{ 361{
355 --grp->length; 362 eio_submit (req);
356 363
357 /* call feeder, if applicable */ 364 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 365 {
363 req_invoke (grp); 366 dSP;
364 req_free (grp); 367 SV *cb = sv_2mortal (on_next_submit);
368
369 on_next_submit = 0;
370
371 PUSHMARK (SP);
372 PUTBACK;
373 call_sv (cb, G_DISCARD | G_EVAL);
365 } 374 }
366} 375}
367 376
377static int
368static void req_invoke (aio_req req) 378req_invoke (eio_req *req)
369{ 379{
370 dSP; 380 if (req->flags & FLAG_SV2_RO_OFF)
381 SvREADONLY_off (req->sv2);
371 382
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 383 if (!EIO_CANCELLED (req) && req->callback)
373 { 384 {
385 dSP;
386 static SV *sv_result_cache; /* caches the result integer SV */
387 SV *sv_result;
388
374 ENTER; 389 ENTER;
375 SAVETMPS; 390 SAVETMPS;
376 PUSHMARK (SP); 391 PUSHMARK (SP);
377 EXTEND (SP, 1); 392 EXTEND (SP, 1);
378 393
394 /* do not recreate the result IV from scratch each time */
395 if (expect_true (sv_result_cache))
396 {
397 sv_result = sv_result_cache; sv_result_cache = 0;
398 SvIV_set (sv_result, req->result);
399 SvIOK_only (sv_result);
400 }
401 else
402 {
403 sv_result = newSViv (req->result);
404 SvREADONLY_on (sv_result);
405 }
406
379 switch (req->type) 407 switch (req->type)
380 { 408 {
409 case EIO_WD_OPEN:
410 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
411 break;
412
381 case REQ_READDIR: 413 case EIO_READDIR:
382 { 414 {
383 SV *rv = &PL_sv_undef; 415 SV *rv = &PL_sv_undef;
384 416
385 if (req->result >= 0) 417 if (req->result >= 0)
386 { 418 {
387 int i; 419 int i;
388 char *buf = req->data2ptr; 420 char *names = (char *)req->ptr2;
421 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 422 AV *av = newAV ();
390 423
391 av_extend (av, req->result - 1); 424 av_extend (av, req->result - 1);
392 425
393 for (i = 0; i < req->result; ++i) 426 for (i = 0; i < req->result; ++i)
394 { 427 {
395 SV *sv = newSVpv (buf, 0); 428 if (req->int1 & EIO_READDIR_DENTS)
429 {
430 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 431
432 if (req->int1 & EIO_READDIR_CUSTOM2)
433 {
434 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
435 AV *avent = newAV ();
436
437 av_extend (avent, 2);
438
439 if (!sv_type [ent->type])
440 {
441 sv_type [ent->type] = newSViv (ent->type);
442 SvREADONLY_on (sv_type [ent->type]);
443 }
444
445 av_store (avent, 0, namesv);
446 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
447 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
448
449 av_store (av, i, newRV_noinc ((SV *)avent));
450 }
451 else
397 av_store (av, i, sv); 452 av_store (av, i, namesv);
453
454 ++ent;
455 }
456 else
457 {
458 SV *name = newSVpv (names, 0);
459 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 460 names += SvCUR (name) + 1;
461 }
399 } 462 }
400 463
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 464 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 465 }
403 466
404 PUSHs (rv); 467 PUSHs (rv);
468
469 if (req->int1 & EIO_READDIR_CUSTOM1)
470 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
405 } 471 }
406 break; 472 break;
407 473
408 case REQ_OPEN: 474 case EIO_OPEN:
409 { 475 {
410 /* convert fd to fh */ 476 /* convert fd to fh */
411 SV *fh; 477 SV *fh = &PL_sv_undef;
412 478
413 PUSHs (sv_2mortal (newSViv (req->result))); 479 if (req->result >= 0)
414 PUTBACK; 480 {
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 481 GV *gv = (GV *)sv_newmortal ();
416 SPAGAIN; 482 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
483 char sym [64];
484 int symlen;
485
486 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
487 gv_init (gv, aio_stash, sym, symlen, 0);
417 488
418 fh = SvREFCNT_inc (POPs); 489 symlen = snprintf (
490 sym,
491 sizeof (sym),
492 "%s&=%d",
493 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494 (int)req->result
495 );
419 496
497 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
498 fh = (SV *)gv;
499 }
500
420 PUSHMARK (SP); 501 PUSHs (fh);
421 XPUSHs (sv_2mortal (fh));
422 } 502 }
423 break; 503 break;
424 504
505 case EIO_STATVFS:
506 case EIO_FSTATVFS:
507 {
508 SV *rv = &PL_sv_undef;
509
510#ifndef _WIN32
511 if (req->result >= 0)
512 {
513 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
514 HV *hv = newHV ();
515 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
516 * chooses to make it a struct.
517 */
518 unsigned long fsid = 0;
519 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
520
521 rv = sv_2mortal (newRV_noinc ((SV *)hv));
522
523 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
524 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
525 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
526 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
527 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
528 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
529 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
530 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
531 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
532 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
533 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
534 }
535#endif
536
537 PUSHs (rv);
538 }
539
540 break;
541
425 case REQ_GROUP: 542 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 543 req->int1 = 2; /* mark group as finished */
427 544
428 if (req->data) 545 if (req->sv1)
429 { 546 {
430 int i; 547 int i;
431 AV *av = (AV *)req->data; 548 AV *av = (AV *)req->sv1;
432 549
433 EXTEND (SP, AvFILL (av) + 1); 550 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 551 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 552 PUSHs (*av_fetch (av, i, 0));
436 } 553 }
437 break; 554 break;
438 555
439 case REQ_NOP: 556 case EIO_NOP:
440 case REQ_BUSY: 557 case EIO_BUSY:
441 break; 558 break;
442 559
560 case EIO_READLINK:
561 case EIO_REALPATH:
562 if (req->result > 0)
563 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
564 break;
565
566 case EIO_STAT:
567 case EIO_LSTAT:
568 case EIO_FSTAT:
569 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
570
571 if (!(PL_laststatval = req->result))
572 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
573 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
574
575 PUSHs (sv_result);
576 break;
577
578 case EIO_SEEK:
579 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
580 break;
581
582 case EIO_READ:
583 {
584 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
585 *SvEND (req->sv2) = 0;
586 SvPOK_only (req->sv2);
587 SvSETMAGIC (req->sv2);
588 PUSHs (sv_result);
589 }
590 break;
591
592 case EIO_CUSTOM:
593 if (req->feed == fiemap)
594 {
595#if HAVE_FIEMAP
596 if (!req->result)
597 {
598 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
599
600 if (fiemap->fm_extent_count)
601 {
602 AV *av = newAV ();
603 int i;
604
605 while (fiemap->fm_mapped_extents)
606 {
607 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
608 AV *ext_av = newAV ();
609
610 av_store (ext_av, 3, newSVuv (extent->fe_flags));
611 av_store (ext_av, 2, newSVval64 (extent->fe_length));
612 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
613 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
614
615 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
616 }
617
618 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
619 }
620 else
621 {
622 SvIV_set (sv_result, fiemap->fm_mapped_extents);
623 PUSHs (sv_result);
624 }
625 }
626#endif
627 }
628 else
629 PUSHs (sv_result);
630 break;
631
632 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
633 if (req->result > 0)
634 SvIV_set (sv_result, 0);
635 /* FALLTHROUGH */
636
443 default: 637 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 638 PUSHs (sv_result);
445 break; 639 break;
446 } 640 }
447 641
448 errno = req->errorno; 642 errno = req->errorno;
449 643
450 PUTBACK; 644 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 645 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 646 SPAGAIN;
647
648 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
649 SvREFCNT_dec (sv_result);
650 else
651 sv_result_cache = sv_result;
453 652
454 FREETMPS; 653 FREETMPS;
455 LEAVE; 654 LEAVE;
655
656 PUTBACK;
456 } 657 }
457 658
458 if (req->grp) 659 return !!SvTRUE (ERRSV);
459 {
460 aio_req grp = req->grp;
461
462 /* unlink request */
463 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
464 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
465
466 if (grp->grp_first == req)
467 grp->grp_first = req->grp_next;
468
469 aio_grp_dec (grp);
470 }
471
472 if (SvTRUE (ERRSV))
473 {
474 req_free (req);
475 croak (0);
476 }
477} 660}
478 661
479static void req_free (aio_req req) 662static void
663req_destroy (aio_req req)
480{ 664{
481 if (req->self) 665 if (req->self)
482 { 666 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 667 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 668 SvREFCNT_dec (req->self);
485 } 669 }
486 670
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 671 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 675 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 676
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 677 free (req);
497} 678}
498 679
680static void
499static void req_cancel_subs (aio_req grp) 681req_cancel_subs (aio_req grp)
500{ 682{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 683 if (grp->type != EIO_GROUP)
504 return; 684 return;
505 685
506 SvREFCNT_dec (grp->fh2); 686 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 687 grp->sv2 = 0;
508 688
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 689 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 690}
512 691
513static void req_cancel (aio_req req) 692static void ecb_cold
693create_respipe (void)
514{ 694{
515 req->flags |= FLAG_CANCELLED; 695 if (s_epipe_renew (&respipe))
516 696 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 697}
519 698
520static void *aio_proc(void *arg); 699static void
521 700poll_wait (void)
522static void start_thread (void)
523{ 701{
524 sigset_t fullsigset, oldsigset;
525 pthread_attr_t attr;
526
527 worker *wrk = calloc (1, sizeof (worker));
528
529 if (!wrk)
530 croak ("unable to allocate worker thread data");
531
532 pthread_attr_init (&attr);
533 pthread_attr_setstacksize (&attr, STACKSIZE);
534 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535#ifdef PTHREAD_SCOPE_PROCESS
536 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537#endif
538
539 sigfillset (&fullsigset);
540
541 LOCK (wrklock);
542 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543
544 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
545 {
546 wrk->prev = &wrk_first;
547 wrk->next = wrk_first.next;
548 wrk_first.next->prev = wrk;
549 wrk_first.next = wrk;
550 ++started;
551 }
552 else
553 free (wrk);
554
555 sigprocmask (SIG_SETMASK, &oldsigset, 0);
556 UNLOCK (wrklock);
557}
558
559static void maybe_start_thread ()
560{
561#if 0
562 static struct timeval last;
563 struct timeval diff, now;
564#endif
565
566 if (started >= wanted)
567 return;
568
569 if (nready <= nreqs - get_nready () - get_npending ())
570 return;
571
572#if 0
573 gettimeofday (&now, 0);
574
575 diff.tv_sec = now.tv_sec - last.tv_sec;
576 diff.tv_usec = now.tv_usec - last.tv_usec;
577
578 if (diff.tv_usec < 0)
579 {
580 --diff.tv_sec;
581 diff.tv_usec += 1000000;
582 }
583
584 if (!diff.tv_sec && diff.tv_usec < 10000)
585 return;
586
587 last = now;
588#endif
589
590 start_thread ();
591}
592
593static void req_send (aio_req req)
594{
595 ++nreqs;
596
597 LOCK (reqlock);
598 ++nready;
599 reqq_push (&req_queue, req);
600 pthread_cond_signal (&reqwait);
601 UNLOCK (reqlock);
602
603 maybe_start_thread ();
604}
605
606static void end_thread (void)
607{
608 aio_req req;
609
610 Newz (0, req, 1, aio_cb);
611
612 req->type = REQ_QUIT;
613 req->pri = PRI_MAX + PRI_BIAS;
614
615 LOCK (reqlock);
616 reqq_push (&req_queue, req);
617 pthread_cond_signal (&reqwait);
618 UNLOCK (reqlock);
619
620 LOCK (wrklock);
621 --started;
622 UNLOCK (wrklock);
623}
624
625static void min_parallel (int nthreads)
626{
627 if (wanted < nthreads)
628 wanted = nthreads;
629}
630
631static void max_parallel (int nthreads)
632{
633 if (wanted > nthreads)
634 wanted = nthreads;
635
636 while (started > wanted)
637 end_thread ();
638}
639
640static void poll_wait ()
641{
642 fd_set rfd;
643
644 while (nreqs) 702 while (eio_nreqs ())
645 { 703 {
646 int size; 704 int size;
647 if (WORDREAD_UNSAFE) LOCK (reslock); 705
706 X_LOCK (reslock);
648 size = res_queue.size; 707 size = res_queue.size;
649 if (WORDREAD_UNSAFE) UNLOCK (reslock); 708 X_UNLOCK (reslock);
650 709
651 if (size) 710 if (size)
652 return; 711 return;
653 712
654 maybe_start_thread (); 713 etp_maybe_start_thread ();
655 714
656 FD_ZERO(&rfd); 715 s_epipe_wait (&respipe);
657 FD_SET(respipe [0], &rfd);
658
659 select (respipe [0] + 1, &rfd, 0, 0, 0);
660 } 716 }
661} 717}
662 718
663static int poll_cb (int max) 719static int
720poll_cb (void)
664{ 721{
665 dSP;
666 int count = 0;
667 int do_croak = 0;
668 aio_req req;
669
670 for (;;) 722 for (;;)
671 { 723 {
672 while (max <= 0 || count < max) 724 int res = eio_poll ();
725
726 if (res > 0)
727 croak (0);
728
729 if (!max_outstanding || max_outstanding > eio_nreqs ())
730 return res;
731
732 poll_wait ();
733 }
734}
735
736static void ecb_cold
737reinit (void)
738{
739 create_respipe ();
740
741 if (eio_init (want_poll, done_poll) < 0)
742 croak ("IO::AIO: unable to initialise eio library");
743}
744
745/*****************************************************************************/
746
747#if !_POSIX_MAPPED_FILES
748# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
749# define munmap(addr,length) EIO_ENOSYS ()
750#endif
751
752#if !_POSIX_MEMORY_PROTECTION
753# define mprotect(addr,len,prot) EIO_ENOSYS ()
754# define PROT_NONE 0
755# define PROT_WRITE 0
756# define MAP_PRIVATE 0
757# define MAP_SHARED 0
758# define MAP_FIXED 0
759#endif
760
761#define MMAP_MAGIC PERL_MAGIC_ext
762
763static int ecb_cold
764mmap_free (pTHX_ SV *sv, MAGIC *mg)
765{
766 int old_errno = errno;
767 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
768 errno = old_errno;
769
770 mg->mg_obj = 0; /* just in case */
771
772 SvREADONLY_off (sv);
773
774 if (SvPVX (sv) != mg->mg_ptr)
775 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
776
777 SvCUR_set (sv, 0);
778 SvPVX (sv) = 0;
779 SvOK_off (sv);
780
781 return 0;
782}
783
784static MGVTBL mmap_vtbl = {
785 0, 0, 0, 0, mmap_free
786};
787
788/*****************************************************************************/
789
790static SV *
791get_cb (SV *cb_sv)
792{
793 SvGETMAGIC (cb_sv);
794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
795}
796
797static aio_req ecb_noinline
798dreq (SV *callback)
799{
800 SV *cb_cv;
801 aio_req req;
802 int req_pri = next_pri;
803 next_pri = EIO_PRI_DEFAULT;
804
805 cb_cv = get_cb (callback);
806
807 req = calloc (sizeof (*req), 1);
808 if (!req)
809 croak ("out of memory during eio_req allocation");
810
811 req->callback = SvREFCNT_inc (cb_cv);
812 req->pri = req_pri;
813
814 return req;
815}
816
817#define dREQ \
818 aio_req req = dreq (callback); \
819
820#define REQ_SEND \
821 PUTBACK; \
822 req_submit (req); \
823 SPAGAIN; \
824 \
825 if (GIMME_V != G_VOID) \
826 XPUSHs (req_sv (req, aio_req_stash));
827
828ecb_inline void
829req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
830{
831 if (expect_false (SvROK (path)))
832 {
833 SV *rv = SvRV (path);
834 SV *wdob;
835
836 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
673 { 837 {
674 maybe_start_thread (); 838 path = AvARRAY (rv)[1];
839 wdob = AvARRAY (rv)[0];
675 840
676 LOCK (reslock); 841 if (SvOK (wdob))
677 req = reqq_shift (&res_queue);
678
679 if (req)
680 { 842 {
681 --npending; 843 *wd = SvAIO_WD (wdob);
682 844 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
683 if (!res_queue.size)
684 {
685 /* read any signals sent by the worker threads */
686 char buf [32];
687 while (read (respipe [0], buf, 32) == 32)
688 ;
689 }
690 }
691
692 UNLOCK (reslock);
693
694 if (!req)
695 break;
696
697 --nreqs;
698
699 if (req->type == REQ_GROUP && req->length)
700 {
701 req->fd = 1; /* mark request as delayed */
702 continue;
703 } 845 }
704 else 846 else
705 { 847 *wd = EIO_INVALID_WD;
706 if (req->type == REQ_READ)
707 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
708
709 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
710 SvREADONLY_off (req->data);
711
712 if (req->statdata)
713 {
714 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
715 PL_laststatval = req->result;
716 PL_statcache = *(req->statdata);
717 }
718
719 req_invoke (req);
720
721 count++;
722 }
723
724 req_free (req);
725 } 848 }
849 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
850 {
851 *wd = (aio_wd)(long)SvIVX (rv);
852 *wdsv = SvREFCNT_inc_NN (rv);
853 *ptr = ".";
854 return; /* path set to "." */
855 }
856 else
857 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
858 }
726 859
727 if (nreqs <= max_outstanding) 860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
728 break; 883 break;
729 884
730 poll_wait (); 885 default:
731 886 req->type = type_path;
732 max = 0; 887 req_set_path1 (req, fh_or_path);
888 break;
733 } 889 }
734
735 return count;
736} 890}
737 891
738static void create_pipe () 892XS(boot_IO__AIO) ecb_cold;
739{
740 if (pipe (respipe))
741 croak ("unable to initialize result pipe");
742 893
743 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745
746 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
747 croak ("cannot set result pipe to nonblocking mode");
748}
749
750/*****************************************************************************/
751/* work around various missing functions */
752
753#if !HAVE_PREADWRITE
754# define pread aio_pread
755# define pwrite aio_pwrite
756
757/*
758 * make our pread/pwrite safe against themselves, but not against
759 * normal read/write by using a mutex. slows down execution a lot,
760 * but that's your problem, not mine.
761 */
762static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
763
764static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
765{
766 ssize_t res;
767 off_t ooffset;
768
769 LOCK (preadwritelock);
770 ooffset = lseek (fd, 0, SEEK_CUR);
771 lseek (fd, offset, SEEK_SET);
772 res = read (fd, buf, count);
773 lseek (fd, ooffset, SEEK_SET);
774 UNLOCK (preadwritelock);
775
776 return res;
777}
778
779static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
780{
781 ssize_t res;
782 off_t ooffset;
783
784 LOCK (preadwritelock);
785 ooffset = lseek (fd, 0, SEEK_CUR);
786 lseek (fd, offset, SEEK_SET);
787 res = write (fd, buf, count);
788 lseek (fd, offset, SEEK_SET);
789 UNLOCK (preadwritelock);
790
791 return res;
792}
793#endif
794
795#if !HAVE_FDATASYNC
796# define fdatasync fsync
797#endif
798
799#if !HAVE_READAHEAD
800# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
801
802static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
803{
804 dBUF;
805
806 while (count > 0)
807 {
808 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
809
810 pread (fd, aio_buf, len, offset);
811 offset += len;
812 count -= len;
813 }
814
815 errno = 0;
816}
817
818#endif
819
820#if !HAVE_READDIR_R
821# define readdir_r aio_readdir_r
822
823static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
824
825static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
826{
827 struct dirent *e;
828 int errorno;
829
830 LOCK (readdirlock);
831
832 e = readdir (dirp);
833 errorno = errno;
834
835 if (e)
836 {
837 *res = ent;
838 strcpy (ent->d_name, e->d_name);
839 }
840 else
841 *res = 0;
842
843 UNLOCK (readdirlock);
844
845 errno = errorno;
846 return e ? 0 : -1;
847}
848#endif
849
850/* sendfile always needs emulation */
851static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
852{
853 ssize_t res;
854
855 if (!count)
856 return 0;
857
858#if HAVE_SENDFILE
859# if __linux
860 res = sendfile (ofd, ifd, &offset, count);
861
862# elif __freebsd
863 /*
864 * Of course, the freebsd sendfile is a dire hack with no thoughts
865 * wasted on making it similar to other I/O functions.
866 */
867 {
868 off_t sbytes;
869 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
870
871 if (res < 0 && sbytes)
872 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
873 res = sbytes;
874 }
875
876# elif __hpux
877 res = sendfile (ofd, ifd, offset, count, 0, 0);
878
879# elif __solaris
880 {
881 struct sendfilevec vec;
882 size_t sbytes;
883
884 vec.sfv_fd = ifd;
885 vec.sfv_flag = 0;
886 vec.sfv_off = offset;
887 vec.sfv_len = count;
888
889 res = sendfilev (ofd, &vec, 1, &sbytes);
890
891 if (res < 0 && sbytes)
892 res = sbytes;
893 }
894
895# endif
896#else
897 res = -1;
898 errno = ENOSYS;
899#endif
900
901 if (res < 0
902 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
903#if __solaris
904 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
905#endif
906 )
907 )
908 {
909 /* emulate sendfile. this is a major pain in the ass */
910 dBUF;
911
912 res = 0;
913
914 while (count)
915 {
916 ssize_t cnt;
917
918 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
919
920 if (cnt <= 0)
921 {
922 if (cnt && !res) res = -1;
923 break;
924 }
925
926 cnt = write (ofd, aio_buf, cnt);
927
928 if (cnt <= 0)
929 {
930 if (cnt && !res) res = -1;
931 break;
932 }
933
934 offset += cnt;
935 res += cnt;
936 count -= cnt;
937 }
938 }
939
940 return res;
941}
942
943/* read a full directory */
944static void scandir_ (aio_req req, worker *self)
945{
946 DIR *dirp;
947 union
948 {
949 struct dirent d;
950 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
951 } *u;
952 struct dirent *entp;
953 char *name, *names;
954 int memlen = 4096;
955 int memofs = 0;
956 int res = 0;
957 int errorno;
958
959 LOCK (wrklock);
960 self->dirp = dirp = opendir (req->dataptr);
961 self->dbuf = u = malloc (sizeof (*u));
962 req->data2ptr = names = malloc (memlen);
963 UNLOCK (wrklock);
964
965 if (dirp && u && names)
966 for (;;)
967 {
968 errno = 0;
969 readdir_r (dirp, &u->d, &entp);
970
971 if (!entp)
972 break;
973
974 name = entp->d_name;
975
976 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
977 {
978 int len = strlen (name) + 1;
979
980 res++;
981
982 while (memofs + len > memlen)
983 {
984 memlen *= 2;
985 LOCK (wrklock);
986 req->data2ptr = names = realloc (names, memlen);
987 UNLOCK (wrklock);
988
989 if (!names)
990 break;
991 }
992
993 memcpy (names + memofs, name, len);
994 memofs += len;
995 }
996 }
997
998 if (errno)
999 res = -1;
1000
1001 req->result = res;
1002}
1003
1004/*****************************************************************************/
1005
1006static void *aio_proc (void *thr_arg)
1007{
1008 aio_req req;
1009 worker *self = (worker *)thr_arg;
1010
1011 for (;;)
1012 {
1013 LOCK (reqlock);
1014
1015 for (;;)
1016 {
1017 self->req = req = reqq_shift (&req_queue);
1018
1019 if (req)
1020 break;
1021
1022 pthread_cond_wait (&reqwait, &reqlock);
1023 }
1024
1025 --nready;
1026
1027 UNLOCK (reqlock);
1028
1029 errno = 0; /* strictly unnecessary */
1030
1031 if (!(req->flags & FLAG_CANCELLED))
1032 switch (req->type)
1033 {
1034 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1035 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1036
1037 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1038 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1039
1040 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1041 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1042 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1043
1044 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1045 case REQ_CLOSE: req->result = close (req->fd); break;
1046 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1047 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1048 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1049 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1050 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1051 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1052
1053 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1054 case REQ_FSYNC: req->result = fsync (req->fd); break;
1055 case REQ_READDIR: scandir_ (req, self); break;
1056
1057 case REQ_BUSY:
1058 {
1059 struct timeval tv;
1060
1061 tv.tv_sec = req->fd;
1062 tv.tv_usec = req->fd2;
1063
1064 req->result = select (0, 0, 0, 0, &tv);
1065 }
1066
1067 case REQ_GROUP:
1068 case REQ_NOP:
1069 break;
1070
1071 case REQ_QUIT:
1072 LOCK (wrklock);
1073 worker_free (self);
1074 --started;
1075 UNLOCK (wrklock);
1076 return 0;
1077
1078 default:
1079 req->result = ENOSYS;
1080 break;
1081 }
1082
1083 req->errorno = errno;
1084
1085 LOCK (reslock);
1086
1087 ++npending;
1088
1089 if (!reqq_push (&res_queue, req))
1090 /* write a dummy byte to the pipe so fh becomes ready */
1091 write (respipe [1], &respipe, 1);
1092
1093 self->req = 0;
1094 worker_clear (self);
1095
1096 UNLOCK (reslock);
1097 }
1098}
1099
1100/*****************************************************************************/
1101
1102static void atfork_prepare (void)
1103{
1104 LOCK (wrklock);
1105 LOCK (reqlock);
1106 LOCK (reslock);
1107#if !HAVE_PREADWRITE
1108 LOCK (preadwritelock);
1109#endif
1110#if !HAVE_READDIR_R
1111 LOCK (readdirlock);
1112#endif
1113}
1114
1115static void atfork_parent (void)
1116{
1117#if !HAVE_READDIR_R
1118 UNLOCK (readdirlock);
1119#endif
1120#if !HAVE_PREADWRITE
1121 UNLOCK (preadwritelock);
1122#endif
1123 UNLOCK (reslock);
1124 UNLOCK (reqlock);
1125 UNLOCK (wrklock);
1126}
1127
1128static void atfork_child (void)
1129{
1130 aio_req prv;
1131
1132 while (prv = reqq_shift (&req_queue))
1133 req_free (prv);
1134
1135 while (prv = reqq_shift (&res_queue))
1136 req_free (prv);
1137
1138 while (wrk_first.next != &wrk_first)
1139 {
1140 worker *wrk = wrk_first.next;
1141
1142 if (wrk->req)
1143 req_free (wrk->req);
1144
1145 worker_clear (wrk);
1146 worker_free (wrk);
1147 }
1148
1149 started = 0;
1150 nreqs = 0;
1151
1152 close (respipe [0]);
1153 close (respipe [1]);
1154 create_pipe ();
1155
1156 atfork_parent ();
1157}
1158
1159#define dREQ \
1160 aio_req req; \
1161 int req_pri = next_pri; \
1162 next_pri = DEFAULT_PRI + PRI_BIAS; \
1163 \
1164 if (SvOK (callback) && !SvROK (callback)) \
1165 croak ("callback must be undef or of reference type"); \
1166 \
1167 Newz (0, req, 1, aio_cb); \
1168 if (!req) \
1169 croak ("out of memory during aio_req allocation"); \
1170 \
1171 req->callback = newSVsv (callback); \
1172 req->pri = req_pri
1173
1174#define REQ_SEND \
1175 req_send (req); \
1176 \
1177 if (GIMME_V != G_VOID) \
1178 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1179
1180MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1181 895
1182PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1183 897
1184BOOT: 898BOOT:
1185{ 899{
900 static const struct {
901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907
908 /* you have to re-run ./gendef0 after adding/Removing any constants here */
909
910 const_iv (ENOSYS)
911 const_iv (EXDEV)
912 const_iv (EBADR)
913
914 const_iv (O_RDONLY)
915 const_iv (O_WRONLY)
916 const_iv (O_RDWR)
917 const_iv (O_CREAT)
918 const_iv (O_TRUNC)
919 const_iv (O_EXCL)
920 const_iv (O_APPEND)
921
922 const_iv (O_ASYNC)
923 const_iv (O_DIRECT)
924 const_iv (O_NOATIME)
925
926 const_iv (O_CLOEXEC)
927 const_iv (O_NOCTTY)
928 const_iv (O_NOFOLLOW)
929 const_iv (O_NONBLOCK)
930 const_iv (O_EXEC)
931 const_iv (O_SEARCH)
932 const_iv (O_DIRECTORY)
933 const_iv (O_DSYNC)
934 const_iv (O_RSYNC)
935 const_iv (O_SYNC)
936 const_iv (O_TTY_INIT)
937
938 const_iv (S_IFIFO)
939 const_iv (S_IFCHR)
940 const_iv (S_IFBLK)
941 const_iv (S_IFLNK)
942 const_iv (S_IFREG)
943 const_iv (S_IFDIR)
944 const_iv (S_IFWHT)
945 const_iv (S_IFSOCK)
946 const_iv (S_IFMT)
947
948 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
949 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
950 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
951 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
952 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
953 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
954
955 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
956 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
957 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
958 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
959 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
960
961 const_iv (ST_RDONLY)
962 const_iv (ST_NOSUID)
963 const_iv (ST_NODEV)
964 const_iv (ST_NOEXEC)
965 const_iv (ST_SYNCHRONOUS)
966 const_iv (ST_MANDLOCK)
967 const_iv (ST_WRITE)
968 const_iv (ST_APPEND)
969 const_iv (ST_IMMUTABLE)
970 const_iv (ST_NOATIME)
971 const_iv (ST_NODIRATIME)
972 const_iv (ST_RELATIME)
973
974 const_iv (PROT_NONE)
975 const_iv (PROT_EXEC)
976 const_iv (PROT_READ)
977 const_iv (PROT_WRITE)
978
979 /*const_iv (MAP_FIXED)*/
980 const_iv (MAP_PRIVATE)
981 const_iv (MAP_SHARED)
982 const_iv (MAP_ANONYMOUS)
983
984 /* linuxish */
985 const_iv (MAP_HUGETLB)
986 const_iv (MAP_LOCKED)
987 const_iv (MAP_NORESERVE)
988 const_iv (MAP_POPULATE)
989 const_iv (MAP_NONBLOCK)
990
991 const_iv (FIEMAP_FLAG_SYNC)
992 const_iv (FIEMAP_FLAG_XATTR)
993 const_iv (FIEMAP_FLAGS_COMPAT)
994 const_iv (FIEMAP_EXTENT_LAST)
995 const_iv (FIEMAP_EXTENT_UNKNOWN)
996 const_iv (FIEMAP_EXTENT_DELALLOC)
997 const_iv (FIEMAP_EXTENT_ENCODED)
998 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
999 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1000 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1001 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1002 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1003 const_iv (FIEMAP_EXTENT_MERGED)
1004 const_iv (FIEMAP_EXTENT_SHARED)
1005
1006 const_iv (SPLICE_F_MOVE)
1007 const_iv (SPLICE_F_NONBLOCK)
1008 const_iv (SPLICE_F_MORE)
1009 const_iv (SPLICE_F_GIFT)
1010
1011 const_iv (SEEK_DATA)
1012 const_iv (SEEK_HOLE)
1013
1014 /* libeio constants */
1015 const_eio (SEEK_SET)
1016 const_eio (SEEK_CUR)
1017 const_eio (SEEK_END)
1018
1019 const_eio (MCL_FUTURE)
1020 const_eio (MCL_CURRENT)
1021
1022 const_eio (MS_ASYNC)
1023 const_eio (MS_INVALIDATE)
1024 const_eio (MS_SYNC)
1025
1026 const_eio (MT_MODIFY)
1027
1028 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1029 const_eio (SYNC_FILE_RANGE_WRITE)
1030 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1031
1032 const_eio (FALLOC_FL_KEEP_SIZE)
1033 const_eio (FALLOC_FL_PUNCH_HOLE)
1034
1035 const_eio (READDIR_DENTS)
1036 const_eio (READDIR_DIRS_FIRST)
1037 const_eio (READDIR_STAT_ORDER)
1038 const_eio (READDIR_FOUND_UNKNOWN)
1039
1040 const_eio (DT_UNKNOWN)
1041 const_eio (DT_FIFO)
1042 const_eio (DT_CHR)
1043 const_eio (DT_DIR)
1044 const_eio (DT_BLK)
1045 const_eio (DT_REG)
1046 const_eio (DT_LNK)
1047 const_eio (DT_SOCK)
1048 const_eio (DT_WHT)
1049 };
1050
1186 HV *stash = gv_stashpv ("IO::AIO", 1); 1051 aio_stash = gv_stashpv ("IO::AIO" , 1);
1052 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1053 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1054 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1187 1055
1188 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1056 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1189 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1057 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1190 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1191 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1192 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1193 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1194 1058
1195 create_pipe (); 1059 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1196 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1197 1060
1198 start_thread (); 1061 reinit ();
1199} 1062}
1200 1063
1201void 1064void
1202min_parallel (int nthreads) 1065reinit ()
1203 PROTOTYPE: $ 1066 PROTOTYPE:
1204 1067
1205void 1068void
1206max_parallel (int nthreads) 1069max_poll_reqs (unsigned int nreqs)
1207 PROTOTYPE: $
1208
1209int
1210max_outstanding (int maxreqs)
1211 PROTOTYPE: $ 1070 PROTOTYPE: $
1212 CODE: 1071 CODE:
1213 RETVAL = max_outstanding; 1072 eio_set_max_poll_reqs (nreqs);
1073
1074void
1075max_poll_time (double nseconds)
1076 PROTOTYPE: $
1077 CODE:
1078 eio_set_max_poll_time (nseconds);
1079
1080void
1081min_parallel (unsigned int nthreads)
1082 PROTOTYPE: $
1083 CODE:
1084 eio_set_min_parallel (nthreads);
1085
1086void
1087max_parallel (unsigned int nthreads)
1088 PROTOTYPE: $
1089 CODE:
1090 eio_set_max_parallel (nthreads);
1091
1092void
1093max_idle (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_idle (nthreads);
1097
1098void
1099idle_timeout (unsigned int seconds)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_idle_timeout (seconds);
1103
1104void
1105max_outstanding (unsigned int maxreqs)
1106 PROTOTYPE: $
1107 CODE:
1214 max_outstanding = maxreqs; 1108 max_outstanding = maxreqs;
1215 OUTPUT:
1216 RETVAL
1217 1109
1218void 1110void
1219aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1111aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1220 SV * pathname
1221 int flags
1222 int mode
1223 SV * callback
1224 PROTOTYPE: $$$;$
1225 PPCODE: 1112 PPCODE:
1226{ 1113{
1227 dREQ; 1114 dREQ;
1228 1115
1229 req->type = REQ_OPEN; 1116 req->type = EIO_WD_OPEN;
1230 req->data = newSVsv (pathname); 1117 req_set_path1 (req, pathname);
1231 req->dataptr = SvPVbyte_nolen (req->data);
1232 req->fd = flags;
1233 req->mode = mode;
1234 1118
1235 REQ_SEND; 1119 REQ_SEND;
1236} 1120}
1237 1121
1238void 1122void
1123aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1124 PPCODE:
1125{
1126 dREQ;
1127
1128 req->type = EIO_OPEN;
1129 req_set_path1 (req, pathname);
1130 req->int1 = flags;
1131 req->int2 = mode;
1132
1133 REQ_SEND;
1134}
1135
1136void
1239aio_close (fh,callback=&PL_sv_undef) 1137aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1240 SV * fh
1241 SV * callback
1242 PROTOTYPE: $;$
1243 ALIAS: 1138 ALIAS:
1244 aio_close = REQ_CLOSE
1245 aio_fsync = REQ_FSYNC 1139 aio_fsync = EIO_FSYNC
1246 aio_fdatasync = REQ_FDATASYNC 1140 aio_fdatasync = EIO_FDATASYNC
1141 aio_syncfs = EIO_SYNCFS
1247 PPCODE: 1142 PPCODE:
1248{ 1143{
1144 int fd = s_fileno_croak (fh, 0);
1249 dREQ; 1145 dREQ;
1250 1146
1251 req->type = ix; 1147 req->type = ix;
1252 req->fh = newSVsv (fh); 1148 req->sv1 = newSVsv (fh);
1253 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1149 req->int1 = fd;
1254 1150
1255 REQ_SEND (req); 1151 REQ_SEND;
1256} 1152}
1257 1153
1258void 1154void
1155aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 int fd = s_fileno_croak (fh, 0);
1159 dREQ;
1160
1161 req->type = EIO_SYNC_FILE_RANGE;
1162 req->sv1 = newSVsv (fh);
1163 req->int1 = fd;
1164 req->offs = offset;
1165 req->size = nbytes;
1166 req->int2 = flags;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1173 PPCODE:
1174{
1175 int fd = s_fileno_croak (fh, 0);
1176 dREQ;
1177
1178 req->type = EIO_FALLOCATE;
1179 req->sv1 = newSVsv (fh);
1180 req->int1 = fd;
1181 req->int2 = mode;
1182 req->offs = offset;
1183 req->size = len;
1184
1185 REQ_SEND;
1186}
1187
1188void
1189aio_close (SV *fh, SV *callback=&PL_sv_undef)
1190 PPCODE:
1191{
1192 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1193 int fd = s_fileno_croak (fh, 0);
1194 dREQ;
1195
1196 if (expect_false (close_fd < 0))
1197 {
1198 int pipefd [2];
1199
1200 if (
1201#ifdef _WIN32
1202 _pipe (pipefd, 1, _O_BINARY) < 0
1203#else
1204 pipe (pipefd) < 0
1205 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1206#endif
1207 || close (pipefd [1]) < 0
1208 )
1209 abort (); /*D*/
1210
1211 close_fd = pipefd [0];
1212 }
1213
1214 req->type = EIO_DUP2;
1215 req->int1 = close_fd;
1216 req->sv2 = newSVsv (fh);
1217 req->int2 = fd;
1218
1219 REQ_SEND;
1220}
1221
1222void
1223aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1224 PPCODE:
1225{
1226 int fd = s_fileno_croak (fh, 0);
1227 dREQ;
1228
1229 req->type = EIO_SEEK;
1230 req->sv1 = newSVsv (fh);
1231 req->int1 = fd;
1232 req->offs = SvVAL64 (offset);
1233 req->int2 = whence;
1234
1235 REQ_SEND;
1236}
1237
1238void
1259aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1239aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1260 SV * fh
1261 UV offset
1262 UV length
1263 SV * data
1264 UV dataoffset
1265 SV * callback
1266 ALIAS: 1240 ALIAS:
1267 aio_read = REQ_READ 1241 aio_read = EIO_READ
1268 aio_write = REQ_WRITE 1242 aio_write = EIO_WRITE
1269 PROTOTYPE: $$$$$;$
1270 PPCODE: 1243 PPCODE:
1271{ 1244{
1272 aio_req req;
1273 STRLEN svlen; 1245 STRLEN svlen;
1246 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1274 char *svptr = SvPVbyte (data, svlen); 1247 char *svptr = SvPVbyte (data, svlen);
1275 1248 UV len = SvUV (length);
1276 SvUPGRADE (data, SVt_PV);
1277 SvPOK_on (data);
1278 1249
1279 if (dataoffset < 0) 1250 if (dataoffset < 0)
1280 dataoffset += svlen; 1251 dataoffset += svlen;
1281 1252
1282 if (dataoffset < 0 || dataoffset > svlen) 1253 if (dataoffset < 0 || dataoffset > svlen)
1283 croak ("data offset outside of string"); 1254 croak ("dataoffset outside of data scalar");
1284 1255
1285 if (ix == REQ_WRITE) 1256 if (ix == EIO_WRITE)
1286 { 1257 {
1287 /* write: check length and adjust. */ 1258 /* write: check length and adjust. */
1288 if (length < 0 || length + dataoffset > svlen) 1259 if (!SvOK (length) || len + dataoffset > svlen)
1289 length = svlen - dataoffset; 1260 len = svlen - dataoffset;
1290 } 1261 }
1291 else 1262 else
1292 { 1263 {
1293 /* read: grow scalar as necessary */ 1264 /* read: check type and grow scalar as necessary */
1265 SvUPGRADE (data, SVt_PV);
1266 if (SvLEN (data) >= SvCUR (data))
1294 svptr = SvGROW (data, length + dataoffset); 1267 svptr = SvGROW (data, len + dataoffset + 1);
1268 else if (SvCUR (data) < len + dataoffset)
1269 croak ("length + dataoffset outside of scalar, and cannot grow");
1295 } 1270 }
1296
1297 if (length < 0)
1298 croak ("length must not be negative");
1299 1271
1300 { 1272 {
1301 dREQ; 1273 dREQ;
1302 1274
1303 req->type = ix; 1275 req->type = ix;
1304 req->fh = newSVsv (fh); 1276 req->sv1 = newSVsv (fh);
1305 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1277 req->int1 = fd;
1306 : IoOFP (sv_2io (fh))); 1278 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1307 req->offset = offset; 1279 req->size = len;
1308 req->length = length;
1309 req->data = SvREFCNT_inc (data); 1280 req->sv2 = SvREFCNT_inc (data);
1310 req->dataptr = (char *)svptr + dataoffset; 1281 req->ptr2 = (char *)svptr + dataoffset;
1282 req->stroffset = dataoffset;
1311 1283
1312 if (!SvREADONLY (data)) 1284 if (!SvREADONLY (data))
1313 { 1285 {
1314 SvREADONLY_on (data); 1286 SvREADONLY_on (data);
1315 req->data2ptr = (void *)data; 1287 req->flags |= FLAG_SV2_RO_OFF;
1316 } 1288 }
1317 1289
1318 REQ_SEND; 1290 REQ_SEND;
1319 } 1291 }
1320} 1292}
1321 1293
1322void 1294void
1323aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1295aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1324 SV * out_fh 1296 ALIAS:
1325 SV * in_fh 1297 aio_readlink = EIO_READLINK
1326 UV in_offset 1298 aio_realpath = EIO_REALPATH
1327 UV length
1328 SV * callback
1329 PROTOTYPE: $$$$;$
1330 PPCODE: 1299 PPCODE:
1331{ 1300{
1301 dREQ;
1302
1303 req->type = ix;
1304 req_set_path1 (req, pathname);
1305
1306 REQ_SEND;
1307}
1308
1309void
1310aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1311 PPCODE:
1312{
1313 int ifd = s_fileno_croak (in_fh , 0);
1314 int ofd = s_fileno_croak (out_fh, 1);
1332 dREQ; 1315 dREQ;
1333 1316
1334 req->type = REQ_SENDFILE; 1317 req->type = EIO_SENDFILE;
1335 req->fh = newSVsv (out_fh); 1318 req->sv1 = newSVsv (out_fh);
1336 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1319 req->int1 = ofd;
1337 req->fh2 = newSVsv (in_fh); 1320 req->sv2 = newSVsv (in_fh);
1338 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1321 req->int2 = ifd;
1339 req->offset = in_offset; 1322 req->offs = in_offset;
1340 req->length = length; 1323 req->size = length;
1341 1324
1342 REQ_SEND; 1325 REQ_SEND;
1343} 1326}
1344 1327
1345void 1328void
1346aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1329aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1347 SV * fh
1348 UV offset
1349 IV length
1350 SV * callback
1351 PROTOTYPE: $$$;$
1352 PPCODE: 1330 PPCODE:
1353{ 1331{
1332 int fd = s_fileno_croak (fh, 0);
1354 dREQ; 1333 dREQ;
1355 1334
1356 req->type = REQ_READAHEAD; 1335 req->type = EIO_READAHEAD;
1357 req->fh = newSVsv (fh); 1336 req->sv1 = newSVsv (fh);
1358 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1337 req->int1 = fd;
1359 req->offset = offset; 1338 req->offs = offset;
1360 req->length = length; 1339 req->size = length;
1361 1340
1362 REQ_SEND; 1341 REQ_SEND;
1363} 1342}
1364 1343
1365void 1344void
1366aio_stat (fh_or_path,callback=&PL_sv_undef) 1345aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1367 SV * fh_or_path
1368 SV * callback
1369 ALIAS: 1346 ALIAS:
1370 aio_stat = REQ_STAT 1347 aio_stat = EIO_STAT
1371 aio_lstat = REQ_LSTAT 1348 aio_lstat = EIO_LSTAT
1349 aio_statvfs = EIO_STATVFS
1372 PPCODE: 1350 PPCODE:
1373{ 1351{
1374 dREQ; 1352 dREQ;
1375 1353
1376 New (0, req->statdata, 1, Stat_t); 1354 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1377 if (!req->statdata)
1378 {
1379 req_free (req);
1380 croak ("out of memory during aio_req->statdata allocation");
1381 }
1382
1383 if (SvPOK (fh_or_path))
1384 {
1385 req->type = ix;
1386 req->data = newSVsv (fh_or_path);
1387 req->dataptr = SvPVbyte_nolen (req->data);
1388 }
1389 else
1390 {
1391 req->type = REQ_FSTAT;
1392 req->fh = newSVsv (fh_or_path);
1393 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1394 }
1395 1355
1396 REQ_SEND; 1356 REQ_SEND;
1397} 1357}
1398 1358
1359UV
1360major (UV dev)
1361 ALIAS:
1362 minor = 1
1363 CODE:
1364 RETVAL = ix ? major (dev) : minor (dev);
1365 OUTPUT:
1366 RETVAL
1367
1368UV
1369makedev (UV maj, UV min)
1370 CODE:
1371 RETVAL = makedev (maj, min);
1372 OUTPUT:
1373 RETVAL
1374
1399void 1375void
1376aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1377 PPCODE:
1378{
1379 dREQ;
1380
1381 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1382 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1383 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1384
1385 REQ_SEND;
1386}
1387
1388void
1389aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1390 PPCODE:
1391{
1392 dREQ;
1393
1394 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1395 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1402 PPCODE:
1403{
1404 dREQ;
1405
1406 req->int2 = mode;
1407 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1408
1409 REQ_SEND;
1410}
1411
1412void
1413aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1414 PPCODE:
1415{
1416 dREQ;
1417
1418 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1419 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1420 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1421
1422 REQ_SEND;
1423}
1424
1425void
1426aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1427 PPCODE:
1428{
1429 dREQ;
1430
1431 req->type = EIO_READDIR;
1432 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1433
1434 if (flags & EIO_READDIR_DENTS)
1435 req->int1 |= EIO_READDIR_CUSTOM2;
1436
1437 req_set_path1 (req, pathname);
1438
1439 REQ_SEND;
1440}
1441
1442void
1443aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1444 PPCODE:
1445{
1446 dREQ;
1447
1448 req->type = EIO_MKDIR;
1449 req->int2 = mode;
1450 req_set_path1 (req, pathname);
1451
1452 REQ_SEND;
1453}
1454
1455void
1400aio_unlink (pathname,callback=&PL_sv_undef) 1456aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1401 SV * pathname
1402 SV * callback
1403 ALIAS: 1457 ALIAS:
1404 aio_unlink = REQ_UNLINK 1458 aio_unlink = EIO_UNLINK
1405 aio_rmdir = REQ_RMDIR 1459 aio_rmdir = EIO_RMDIR
1406 aio_readdir = REQ_READDIR 1460 aio_readdir = EIO_READDIR
1407 PPCODE: 1461 PPCODE:
1408{ 1462{
1409 dREQ; 1463 dREQ;
1410 1464
1411 req->type = ix; 1465 req->type = ix;
1412 req->data = newSVsv (pathname); 1466 req_set_path1 (req, pathname);
1413 req->dataptr = SvPVbyte_nolen (req->data); 1467
1414
1415 REQ_SEND; 1468 REQ_SEND;
1416} 1469}
1417 1470
1418void 1471void
1419aio_link (oldpath,newpath,callback=&PL_sv_undef) 1472aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1420 SV * oldpath
1421 SV * newpath
1422 SV * callback
1423 ALIAS: 1473 ALIAS:
1424 aio_link = REQ_LINK 1474 aio_link = EIO_LINK
1425 aio_symlink = REQ_SYMLINK 1475 aio_symlink = EIO_SYMLINK
1426 aio_rename = REQ_RENAME 1476 aio_rename = EIO_RENAME
1427 PPCODE: 1477 PPCODE:
1428{ 1478{
1479 eio_wd wd2 = 0;
1429 dREQ; 1480 dREQ;
1430 1481
1431 req->type = ix; 1482 req->type = ix;
1432 req->fh = newSVsv (oldpath); 1483 req_set_path1 (req, oldpath);
1433 req->data2ptr = SvPVbyte_nolen (req->fh); 1484 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1434 req->data = newSVsv (newpath); 1485 req->int3 = (long)wd2;
1435 req->dataptr = SvPVbyte_nolen (req->data);
1436 1486
1437 REQ_SEND; 1487 REQ_SEND;
1438} 1488}
1439 1489
1440void 1490void
1441aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1491aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1442 SV * pathname
1443 SV * callback
1444 UV mode
1445 UV dev
1446 PPCODE: 1492 PPCODE:
1447{ 1493{
1448 dREQ; 1494 dREQ;
1449 1495
1450 req->type = REQ_MKNOD; 1496 req->type = EIO_MKNOD;
1451 req->data = newSVsv (pathname);
1452 req->dataptr = SvPVbyte_nolen (req->data);
1453 req->mode = (mode_t)mode; 1497 req->int2 = (mode_t)mode;
1454 req->offset = dev; 1498 req->offs = dev;
1499 req_set_path1 (req, pathname);
1455 1500
1456 REQ_SEND; 1501 REQ_SEND;
1457} 1502}
1458 1503
1459void 1504void
1505aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1506 ALIAS:
1507 aio_mtouch = EIO_MTOUCH
1508 aio_msync = EIO_MSYNC
1509 PPCODE:
1510{
1511 STRLEN svlen;
1512 char *svptr = SvPVbyte (data, svlen);
1513 UV len = SvUV (length);
1514
1515 if (offset < 0)
1516 offset += svlen;
1517
1518 if (offset < 0 || offset > svlen)
1519 croak ("offset outside of scalar");
1520
1521 if (!SvOK (length) || len + offset > svlen)
1522 len = svlen - offset;
1523
1524 {
1525 dREQ;
1526
1527 req->type = ix;
1528 req->sv2 = SvREFCNT_inc (data);
1529 req->ptr2 = (char *)svptr + offset;
1530 req->size = len;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534 }
1535}
1536
1537void
1538aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1539 PPCODE:
1540{
1541 STRLEN svlen;
1542 char *svptr = SvPVbyte (data, svlen);
1543 UV len = SvUV (length);
1544
1545 if (offset < 0)
1546 offset += svlen;
1547
1548 if (offset < 0 || offset > svlen)
1549 croak ("offset outside of scalar");
1550
1551 if (!SvOK (length) || len + offset > svlen)
1552 len = svlen - offset;
1553
1554 {
1555 dREQ;
1556
1557 req->type = EIO_MLOCK;
1558 req->sv2 = SvREFCNT_inc (data);
1559 req->ptr2 = (char *)svptr + offset;
1560 req->size = len;
1561
1562 REQ_SEND;
1563 }
1564}
1565
1566void
1567aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1568 PPCODE:
1569{
1570 dREQ;
1571
1572 req->type = EIO_MLOCKALL;
1573 req->int1 = flags;
1574
1575 REQ_SEND;
1576}
1577
1578void
1579aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1580 PPCODE:
1581{
1582 int fd = s_fileno_croak (fh, 0);
1583 dREQ;
1584
1585 req->type = EIO_CUSTOM;
1586 req->sv1 = newSVsv (fh);
1587 req->int1 = fd;
1588
1589 req->feed = fiemap;
1590#if HAVE_FIEMAP
1591 /* keep our fingers crossed that the next two types are 64 bit */
1592 req->offs = start;
1593 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1594 req->int2 = flags;
1595 req->int3 = SvOK (count) ? SvIV (count) : -1;
1596#endif
1597
1598 REQ_SEND;
1599}
1600
1601void
1460aio_busy (delay,callback=&PL_sv_undef) 1602aio_busy (double delay, SV *callback=&PL_sv_undef)
1461 double delay
1462 SV * callback
1463 PPCODE: 1603 PPCODE:
1464{ 1604{
1465 dREQ; 1605 dREQ;
1466 1606
1467 req->type = REQ_BUSY; 1607 req->type = EIO_BUSY;
1468 req->fd = delay < 0. ? 0 : delay; 1608 req->nv1 = delay < 0. ? 0. : delay;
1469 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1470 1609
1471 REQ_SEND; 1610 REQ_SEND;
1472} 1611}
1473 1612
1474void 1613void
1475aio_group (callback=&PL_sv_undef) 1614aio_group (SV *callback=&PL_sv_undef)
1476 SV * callback
1477 PROTOTYPE: ;$
1478 PPCODE: 1615 PPCODE:
1479{ 1616{
1480 dREQ; 1617 dREQ;
1481 1618
1482 req->type = REQ_GROUP; 1619 req->type = EIO_GROUP;
1620
1483 req_send (req); 1621 req_submit (req);
1484
1485 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1622 XPUSHs (req_sv (req, aio_grp_stash));
1486} 1623}
1487 1624
1488void 1625void
1489aio_nop (callback=&PL_sv_undef) 1626aio_nop (SV *callback=&PL_sv_undef)
1490 SV * callback 1627 ALIAS:
1628 aio_nop = EIO_NOP
1629 aio_sync = EIO_SYNC
1491 PPCODE: 1630 PPCODE:
1492{ 1631{
1493 dREQ; 1632 dREQ;
1494 1633
1495 req->type = REQ_NOP; 1634 req->type = ix;
1496 1635
1497 REQ_SEND; 1636 REQ_SEND;
1498} 1637}
1499 1638
1500int 1639int
1501aioreq_pri (int pri = 0) 1640aioreq_pri (int pri = 0)
1502 PROTOTYPE: ;$
1503 CODE: 1641 CODE:
1504 RETVAL = next_pri - PRI_BIAS; 1642 RETVAL = next_pri;
1505 if (items > 0) 1643 if (items > 0)
1506 { 1644 {
1507 if (pri < PRI_MIN) pri = PRI_MIN; 1645 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1508 if (pri > PRI_MAX) pri = PRI_MAX; 1646 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1509 next_pri = pri + PRI_BIAS; 1647 next_pri = pri;
1510 } 1648 }
1511 OUTPUT: 1649 OUTPUT:
1512 RETVAL 1650 RETVAL
1513 1651
1514void 1652void
1515aioreq_nice (int nice = 0) 1653aioreq_nice (int nice = 0)
1516 CODE: 1654 CODE:
1517 nice = next_pri - nice; 1655 nice = next_pri - nice;
1518 if (nice < PRI_MIN) nice = PRI_MIN; 1656 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1519 if (nice > PRI_MAX) nice = PRI_MAX; 1657 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1520 next_pri = nice + PRI_BIAS; 1658 next_pri = nice;
1521 1659
1522void 1660void
1523flush () 1661flush ()
1662 CODE:
1663 while (eio_nreqs ())
1664 {
1665 poll_wait ();
1666 poll_cb ();
1667 }
1668
1669int
1670poll ()
1671 CODE:
1672 poll_wait ();
1673 RETVAL = poll_cb ();
1674 OUTPUT:
1675 RETVAL
1676
1677int
1678poll_fileno ()
1679 CODE:
1680 RETVAL = s_epipe_fd (&respipe);
1681 OUTPUT:
1682 RETVAL
1683
1684int
1685poll_cb (...)
1524 PROTOTYPE: 1686 PROTOTYPE:
1525 CODE: 1687 CODE:
1526 while (nreqs)
1527 {
1528 poll_wait ();
1529 poll_cb (0); 1688 RETVAL = poll_cb ();
1530 }
1531
1532void
1533poll()
1534 PROTOTYPE:
1535 CODE:
1536 if (nreqs)
1537 {
1538 poll_wait ();
1539 poll_cb (0);
1540 }
1541
1542int
1543poll_fileno()
1544 PROTOTYPE:
1545 CODE:
1546 RETVAL = respipe [0];
1547 OUTPUT: 1689 OUTPUT:
1548 RETVAL 1690 RETVAL
1549 1691
1692void
1693poll_wait ()
1694 CODE:
1695 poll_wait ();
1696
1550int 1697int
1551poll_cb(...) 1698nreqs ()
1552 PROTOTYPE:
1553 CODE: 1699 CODE:
1554 RETVAL = poll_cb (0); 1700 RETVAL = eio_nreqs ();
1555 OUTPUT: 1701 OUTPUT:
1556 RETVAL 1702 RETVAL
1557 1703
1558int 1704int
1559poll_some(int max = 0) 1705nready ()
1560 PROTOTYPE: $
1561 CODE: 1706 CODE:
1562 RETVAL = poll_cb (max); 1707 RETVAL = eio_nready ();
1563 OUTPUT: 1708 OUTPUT:
1564 RETVAL 1709 RETVAL
1565 1710
1566void 1711int
1567poll_wait() 1712npending ()
1568 PROTOTYPE:
1569 CODE: 1713 CODE:
1570 if (nreqs) 1714 RETVAL = eio_npending ();
1571 poll_wait ();
1572
1573int
1574nreqs()
1575 PROTOTYPE:
1576 CODE:
1577 RETVAL = nreqs;
1578 OUTPUT: 1715 OUTPUT:
1579 RETVAL 1716 RETVAL
1580 1717
1581int 1718int
1582nready() 1719nthreads ()
1583 PROTOTYPE:
1584 CODE: 1720 CODE:
1585 RETVAL = get_nready (); 1721 RETVAL = eio_nthreads ();
1586 OUTPUT: 1722 OUTPUT:
1587 RETVAL 1723 RETVAL
1588 1724
1589int 1725int
1590npending() 1726fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1591 PROTOTYPE: 1727 CODE:
1728 RETVAL = posix_fadvise (fh, offset, length, advice);
1729 OUTPUT:
1730 RETVAL
1731
1732IV
1733sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1734 CODE:
1735 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1736 OUTPUT:
1737 RETVAL
1738
1739void
1740mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1741 PPCODE:
1742 sv_unmagic (scalar, MMAP_MAGIC);
1743{
1744 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1745 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1746 if (addr == (void *)-1)
1747 XSRETURN_NO;
1748
1749 sv_force_normal (scalar);
1750
1751 /* we store the length in mg_obj, as namlen is I32 :/ */
1752 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1753 ->mg_obj = (SV *)length;
1754
1755 SvUPGRADE (scalar, SVt_PV); /* nop... */
1756
1757 if (!(prot & PROT_WRITE))
1758 SvREADONLY_on (scalar);
1759
1760 if (SvLEN (scalar))
1761 Safefree (SvPVX (scalar));
1762
1763 SvPVX (scalar) = (char *)addr;
1764 SvCUR_set (scalar, length);
1765 SvLEN_set (scalar, 0);
1766 SvPOK_only (scalar);
1767
1768 XSRETURN_YES;
1769}
1770
1771void
1772munmap (SV *scalar)
1592 CODE: 1773 CODE:
1593 RETVAL = get_npending (); 1774 sv_unmagic (scalar, MMAP_MAGIC);
1775
1776int
1777madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1778 ALIAS:
1779 mprotect = 1
1780 CODE:
1781{
1782 STRLEN svlen;
1783 void *addr = SvPVbyte (scalar, svlen);
1784 size_t len = SvUV (length);
1785
1786 if (offset < 0)
1787 offset += svlen;
1788
1789 if (offset < 0 || offset > svlen)
1790 croak ("offset outside of scalar");
1791
1792 if (!SvOK (length) || len + offset > svlen)
1793 len = svlen - offset;
1794
1795 addr = (void *)(((intptr_t)addr) + offset);
1796 eio_page_align (&addr, &len);
1797
1798 switch (ix)
1799 {
1800 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1801 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1802 }
1803}
1594 OUTPUT: 1804 OUTPUT:
1595 RETVAL 1805 RETVAL
1806
1807int
1808munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1809 CODE:
1810{
1811 STRLEN svlen;
1812 void *addr = SvPVbyte (scalar, svlen);
1813 size_t len = SvUV (length);
1814
1815 if (offset < 0)
1816 offset += svlen;
1817
1818 if (offset < 0 || offset > svlen)
1819 croak ("offset outside of scalar");
1820
1821 if (!SvOK (length) || len + offset > svlen)
1822 len = svlen - offset;
1823
1824 addr = (void *)(((intptr_t)addr) + offset);
1825 eio_page_align (&addr, &len);
1826#if _POSIX_MEMLOCK_RANGE
1827 RETVAL = munlock (addr, len);
1828#else
1829 RETVAL = EIO_ENOSYS ();
1830#endif
1831}
1832 OUTPUT:
1833 RETVAL
1834
1835int
1836munlockall ()
1837 CODE:
1838#if _POSIX_MEMLOCK
1839 munlockall ();
1840#else
1841 RETVAL = EIO_ENOSYS ();
1842#endif
1843 OUTPUT:
1844 RETVAL
1845
1846int
1847splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1848 CODE:
1849{
1850#if HAVE_LINUX_SPLICE
1851 loff_t off_in_, off_out_;
1852 RETVAL = splice (
1853 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1854 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1855 length, flags
1856 );
1857#else
1858 RETVAL = EIO_ENOSYS ();
1859#endif
1860}
1861 OUTPUT:
1862 RETVAL
1863
1864int
1865tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1866 CODE:
1867#if HAVE_LINUX_SPLICE
1868 RETVAL = tee (rfh, wfh, length, flags);
1869#else
1870 RETVAL = EIO_ENOSYS ();
1871#endif
1872 OUTPUT:
1873 RETVAL
1874
1875int
1876pipesize (aio_rfd rfh, int new_size = -1)
1877 PROTOTYPE: $;$
1878 CODE:
1879#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1880 if (new_size >= 0)
1881 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1882 else
1883 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1884#else
1885 errno = ENOSYS;
1886 RETVAL = -1;
1887#endif
1888 OUTPUT:
1889 RETVAL
1890
1891void _on_next_submit (SV *cb)
1892 CODE:
1893 SvREFCNT_dec (on_next_submit);
1894 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1596 1895
1597PROTOTYPES: DISABLE 1896PROTOTYPES: DISABLE
1897
1898MODULE = IO::AIO PACKAGE = IO::AIO::WD
1899
1900BOOT:
1901{
1902 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1903 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1904}
1905
1906void
1907DESTROY (SV *self)
1908 CODE:
1909{
1910 aio_wd wd = SvAIO_WD (self);
1911#if HAVE_AT
1912 {
1913 SV *callback = &PL_sv_undef;
1914 dREQ; /* clobbers next_pri :/ */
1915 next_pri = req->pri; /* restore next_pri */
1916 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1917 req->type = EIO_WD_CLOSE;
1918 req->wd = wd;
1919 REQ_SEND;
1920 }
1921#else
1922 eio_wd_close_sync (wd);
1923#endif
1924}
1598 1925
1599MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1926MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1600 1927
1601void 1928void
1602cancel (aio_req_ornot req) 1929cancel (aio_req_ornot req)
1603 CODE: 1930 CODE:
1604 req_cancel (req); 1931 eio_cancel (req);
1605 1932
1606void 1933void
1607cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1934cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1608 CODE: 1935 PPCODE:
1936{
1937 if (GIMME_V != G_VOID)
1938 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1939
1940 if (items > 1)
1941 {
1942 SV *cb_cv =get_cb (callback);
1943
1609 SvREFCNT_dec (req->callback); 1944 SvREFCNT_dec (req->callback);
1610 req->callback = newSVsv (callback); 1945 req->callback = SvREFCNT_inc (cb_cv);
1946 }
1947}
1611 1948
1612MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1949MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1613 1950
1614void 1951void
1615add (aio_req grp, ...) 1952add (aio_req grp, ...)
1616 PPCODE: 1953 PPCODE:
1617{ 1954{
1618 int i; 1955 int i;
1619 aio_req req;
1620 1956
1621 if (grp->fd == 2) 1957 if (grp->int1 == 2)
1622 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1958 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1623 1959
1624 for (i = 1; i < items; ++i ) 1960 for (i = 1; i < items; ++i )
1625 { 1961 {
1962 aio_req req;
1963
1626 if (GIMME_V != G_VOID) 1964 if (GIMME_V != G_VOID)
1627 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1965 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1628 1966
1629 req = SvAIO_REQ (ST (i)); 1967 req = SvAIO_REQ (ST (i));
1630 1968
1631 if (req) 1969 if (req)
1632 { 1970 eio_grp_add (grp, req);
1633 ++grp->length;
1634 req->grp = grp;
1635
1636 req->grp_prev = 0;
1637 req->grp_next = grp->grp_first;
1638
1639 if (grp->grp_first)
1640 grp->grp_first->grp_prev = req;
1641
1642 grp->grp_first = req;
1643 }
1644 } 1971 }
1645} 1972}
1646 1973
1647void 1974void
1648cancel_subs (aio_req_ornot req) 1975cancel_subs (aio_req_ornot req)
… …
1657 AV *av; 1984 AV *av;
1658 1985
1659 grp->errorno = errno; 1986 grp->errorno = errno;
1660 1987
1661 av = newAV (); 1988 av = newAV ();
1989 av_extend (av, items - 1);
1662 1990
1663 for (i = 1; i < items; ++i ) 1991 for (i = 1; i < items; ++i )
1664 av_push (av, newSVsv (ST (i))); 1992 av_push (av, newSVsv (ST (i)));
1665 1993
1666 SvREFCNT_dec (grp->data); 1994 SvREFCNT_dec (grp->sv1);
1667 grp->data = (SV *)av; 1995 grp->sv1 = (SV *)av;
1668} 1996}
1669 1997
1670void 1998void
1671errno (aio_req grp, int errorno = errno) 1999errno (aio_req grp, int errorno = errno)
1672 CODE: 2000 CODE:
1673 grp->errorno = errorno; 2001 grp->errorno = errorno;
1674 2002
1675void 2003void
1676limit (aio_req grp, int limit) 2004limit (aio_req grp, int limit)
1677 CODE: 2005 CODE:
1678 grp->fd2 = limit; 2006 eio_grp_limit (grp, limit);
1679 aio_grp_feed (grp);
1680 2007
1681void 2008void
1682feed (aio_req grp, SV *callback=&PL_sv_undef) 2009feed (aio_req grp, SV *callback=&PL_sv_undef)
1683 CODE: 2010 CODE:
1684{ 2011{
1685 SvREFCNT_dec (grp->fh2); 2012 SvREFCNT_dec (grp->sv2);
1686 grp->fh2 = newSVsv (callback); 2013 grp->sv2 = newSVsv (callback);
2014 grp->feed = aio_grp_feed;
1687 2015
1688 if (grp->fd2 <= 0) 2016 if (grp->int2 <= 0)
1689 grp->fd2 = 2; 2017 grp->int2 = 2;
1690 2018
1691 aio_grp_feed (grp); 2019 eio_grp_limit (grp, grp->int2);
1692} 2020}
1693 2021

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