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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.82 by root, Fri Oct 27 20:11:58 2006 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 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 150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
57 157
58#if __ia64 158#ifndef PAGESIZE
59# define STACKSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 160#endif
61# define STACKSIZE PTHREAD_STACK_MIN 161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (!fiemap->fm_mapped_extents)
200 break; /* if file has no segments, we are done */
201
202 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
203 break; /* autosizing successful, we are done */
204
205 fiemap->fm_flags = req->int2;
206 fiemap->fm_extent_count = 0;
207
208 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
209 return;
210
211 count = fiemap->fm_mapped_extents;
212
213 free (fiemap);
214 }
215
216 req->result = 0;
217
62#else 218#else
63# define STACKSIZE 16384 219 errno = ENOSYS;
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 220#endif
76#endif 221}
77 222
78/* buffer size for various temporary buffers */ 223/*****************************************************************************/
79#define AIO_BUFSIZE 65536
80
81#define dBUF \
82 char *aio_buf; \
83 LOCK (wrklock); \
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85 UNLOCK (wrklock); \
86 if (!aio_buf) \
87 return -1;
88 224
89enum { 225enum {
90 REQ_QUIT, 226 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
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}; 227};
102 228
103#define AIO_REQ_KLASS "IO::AIO::REQ"
104#define AIO_GRP_KLASS "IO::AIO::GRP"
105
106typedef struct aio_cb
107{
108 struct aio_cb *volatile next;
109
110 SV *data, *callback;
111 SV *fh, *fh2;
112 void *dataptr, *data2ptr;
113 Stat_t *statdata;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117
118 STRLEN dataoffset;
119 int type;
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123
124 unsigned char flags;
125 unsigned char pri;
126
127 SV *self; /* the perl counterpart of this request, if any */
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; 229typedef eio_req *aio_req;
136typedef aio_cb *aio_req_ornot; 230typedef eio_req *aio_req_ornot;
231typedef eio_wd aio_wd;
137 232
138enum { 233static SV *on_next_submit;
139 PRI_MIN = -4, 234static int next_pri = EIO_PRI_DEFAULT;
140 PRI_MAX = 4, 235static int max_outstanding;
141 236
142 DEFAULT_PRI = 0, 237static s_epipe respipe;
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146 238
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 {
181 closedir (wrk->dirp);
182 wrk->dirp = 0;
183 }
184
185 if (wrk->dbuf)
186 {
187 free (wrk->dbuf);
188 wrk->dbuf = 0;
189 }
190}
191
192static void worker_free (worker *wrk)
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;
274
275 --q->size;
276
277 for (pri = NUM_PRI; pri--; )
278 {
279 aio_req req = q->qs[pri];
280
281 if (req)
282 {
283 if (!(q->qs[pri] = req->next))
284 q->qe[pri] = 0;
285
286 return req;
287 }
288 }
289
290 abort ();
291}
292
293static int poll_cb (int max);
294static void req_invoke (aio_req req);
295static void req_free (aio_req req); 239static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 240static void req_cancel (aio_req req);
297 241
242static void
243want_poll (void)
244{
245 /* write a dummy byte to the pipe so fh becomes ready */
246 s_epipe_signal (&respipe);
247}
248
249static void
250done_poll (void)
251{
252 /* read any signals sent by the worker threads */
253 s_epipe_drain (&respipe);
254}
255
298/* must be called at most once */ 256/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 257static SV *
258req_sv (aio_req req, HV *stash)
300{ 259{
301 if (!req->self) 260 if (!req->self)
302 { 261 {
303 req->self = (SV *)newHV (); 262 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 263 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 264 }
306 265
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 266 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 267}
309 268
310static aio_req SvAIO_REQ (SV *sv) 269static SV *
270newSVaio_wd (aio_wd wd)
271{
272 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
273}
274
275static aio_req
276SvAIO_REQ (SV *sv)
311{ 277{
312 MAGIC *mg; 278 MAGIC *mg;
313 279
314 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 280 if (!SvROK (sv)
281 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
282 || (SvSTASH (SvRV (sv)) != aio_grp_stash
283 && SvSTASH (SvRV (sv)) != aio_req_stash
284 && !sv_derived_from (sv, "IO::AIO::REQ")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 285 croak ("object of class IO::AIO::REQ expected");
316 286
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 287 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 288
319 return mg ? (aio_req)mg->mg_ptr : 0; 289 return mg ? (aio_req)mg->mg_ptr : 0;
320} 290}
321 291
292static aio_wd
293SvAIO_WD (SV *sv)
294{
295 if (!SvROK (sv)
296 || SvTYPE (SvRV (sv)) != SVt_PVMG
297 || SvSTASH (SvRV (sv)) != aio_wd_stash)
298 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
299
300 return (aio_wd)(long)SvIVX (SvRV (sv));
301}
302
303static void
322static void aio_grp_feed (aio_req grp) 304aio_grp_feed (aio_req grp)
323{ 305{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 306 if (grp->sv2 && SvOK (grp->sv2))
325 { 307 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 308 dSP;
331 309
332 ENTER; 310 ENTER;
333 SAVETMPS; 311 SAVETMPS;
334 PUSHMARK (SP); 312 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 313 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 314 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 315 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 316 SPAGAIN;
339 FREETMPS; 317 FREETMPS;
340 LEAVE; 318 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 } 319 }
351} 320}
352 321
353static void aio_grp_dec (aio_req grp) 322static void
323req_submit (eio_req *req)
354{ 324{
355 --grp->length; 325 eio_submit (req);
356 326
357 /* call feeder, if applicable */ 327 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 328 {
363 req_invoke (grp); 329 dSP;
364 req_free (grp); 330 SV *cb = sv_2mortal (on_next_submit);
331
332 on_next_submit = 0;
333
334 PUSHMARK (SP);
335 PUTBACK;
336 call_sv (cb, G_DISCARD | G_EVAL);
365 } 337 }
366} 338}
367 339
340static int
368static void req_invoke (aio_req req) 341req_invoke (eio_req *req)
369{ 342{
370 dSP; 343 if (req->flags & FLAG_SV2_RO_OFF)
344 SvREADONLY_off (req->sv2);
371 345
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 346 if (!EIO_CANCELLED (req) && req->callback)
373 { 347 {
348 dSP;
349 static SV *sv_result_cache; /* caches the result integer SV */
350 SV *sv_result;
351
374 ENTER; 352 ENTER;
375 SAVETMPS; 353 SAVETMPS;
376 PUSHMARK (SP); 354 PUSHMARK (SP);
377 EXTEND (SP, 1); 355 EXTEND (SP, 1);
378 356
357 /* do not recreate the result IV from scratch each time */
358 if (expect_true (sv_result_cache))
359 {
360 sv_result = sv_result_cache; sv_result_cache = 0;
361 SvIV_set (sv_result, req->result);
362 SvIOK_only (sv_result);
363 }
364 else
365 {
366 sv_result = newSViv (req->result);
367 SvREADONLY_on (sv_result);
368 }
369
379 switch (req->type) 370 switch (req->type)
380 { 371 {
372 case EIO_WD_OPEN:
373 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
374 break;
375
381 case REQ_READDIR: 376 case EIO_READDIR:
382 { 377 {
383 SV *rv = &PL_sv_undef; 378 SV *rv = &PL_sv_undef;
384 379
385 if (req->result >= 0) 380 if (req->result >= 0)
386 { 381 {
387 int i; 382 int i;
388 char *buf = req->data2ptr; 383 char *names = (char *)req->ptr2;
384 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 385 AV *av = newAV ();
390 386
391 av_extend (av, req->result - 1); 387 av_extend (av, req->result - 1);
392 388
393 for (i = 0; i < req->result; ++i) 389 for (i = 0; i < req->result; ++i)
394 { 390 {
395 SV *sv = newSVpv (buf, 0); 391 if (req->int1 & EIO_READDIR_DENTS)
392 {
393 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 394
395 if (req->int1 & EIO_READDIR_CUSTOM2)
396 {
397 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
398 AV *avent = newAV ();
399
400 av_extend (avent, 2);
401
402 if (!sv_type [ent->type])
403 {
404 sv_type [ent->type] = newSViv (ent->type);
405 SvREADONLY_on (sv_type [ent->type]);
406 }
407
408 av_store (avent, 0, namesv);
409 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
410 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
411
412 av_store (av, i, newRV_noinc ((SV *)avent));
413 }
414 else
397 av_store (av, i, sv); 415 av_store (av, i, namesv);
416
417 ++ent;
418 }
419 else
420 {
421 SV *name = newSVpv (names, 0);
422 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 423 names += SvCUR (name) + 1;
424 }
399 } 425 }
400 426
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 427 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 428 }
403 429
404 PUSHs (rv); 430 PUSHs (rv);
431
432 if (req->int1 & EIO_READDIR_CUSTOM1)
433 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
405 } 434 }
406 break; 435 break;
407 436
408 case REQ_OPEN: 437 case EIO_OPEN:
409 { 438 {
410 /* convert fd to fh */ 439 /* convert fd to fh */
411 SV *fh; 440 SV *fh = &PL_sv_undef;
412 441
413 PUSHs (sv_2mortal (newSViv (req->result))); 442 if (req->result >= 0)
414 PUTBACK; 443 {
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 444 GV *gv = (GV *)sv_newmortal ();
416 SPAGAIN; 445 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
446 char sym [64];
447 int symlen;
448
449 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
450 gv_init (gv, aio_stash, sym, symlen, 0);
417 451
418 fh = SvREFCNT_inc (POPs); 452 symlen = snprintf (
453 sym,
454 sizeof (sym),
455 "%s&=%d",
456 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
457 (int)req->result
458 );
419 459
460 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
461 fh = (SV *)gv;
462 }
463
420 PUSHMARK (SP); 464 PUSHs (fh);
421 XPUSHs (sv_2mortal (fh));
422 } 465 }
423 break; 466 break;
424 467
468 case EIO_STATVFS:
469 case EIO_FSTATVFS:
470 {
471 SV *rv = &PL_sv_undef;
472
473#ifndef _WIN32
474 if (req->result >= 0)
475 {
476 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
477 HV *hv = newHV ();
478
479 rv = sv_2mortal (newRV_noinc ((SV *)hv));
480
481 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
482 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
483 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
484 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
485 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
486 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
487 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
488 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
489 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
490 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
491 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
492 }
493#endif
494
495 PUSHs (rv);
496 }
497
498 break;
499
425 case REQ_GROUP: 500 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 501 req->int1 = 2; /* mark group as finished */
427 502
428 if (req->data) 503 if (req->sv1)
429 { 504 {
430 int i; 505 int i;
431 AV *av = (AV *)req->data; 506 AV *av = (AV *)req->sv1;
432 507
433 EXTEND (SP, AvFILL (av) + 1); 508 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 509 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 510 PUSHs (*av_fetch (av, i, 0));
436 } 511 }
437 break; 512 break;
438 513
439 case REQ_NOP: 514 case EIO_NOP:
440 case REQ_BUSY: 515 case EIO_BUSY:
441 break; 516 break;
442 517
518 case EIO_READLINK:
519 case EIO_REALPATH:
520 if (req->result > 0)
521 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
522 break;
523
524 case EIO_STAT:
525 case EIO_LSTAT:
526 case EIO_FSTAT:
527 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
528
529 if (!(PL_laststatval = req->result))
530 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
531 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
532
533 PUSHs (sv_result);
534 break;
535
536 case EIO_SEEK:
537 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
538 break;
539
540 case EIO_READ:
541 {
542 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
543 *SvEND (req->sv2) = 0;
544 SvPOK_only (req->sv2);
545 SvSETMAGIC (req->sv2);
546 PUSHs (sv_result);
547 }
548 break;
549
550 case EIO_CUSTOM:
551 if (req->feed == fiemap)
552 {
553#if HAVE_FIEMAP
554 if (!req->result)
555 {
556 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
557
558 if (fiemap->fm_extent_count)
559 {
560 AV *av = newAV ();
561 int i;
562
563 while (fiemap->fm_mapped_extents)
564 {
565 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
566 AV *ext_av = newAV ();
567
568 av_store (ext_av, 3, newSVuv (extent->fe_flags));
569 av_store (ext_av, 2, newSVval64 (extent->fe_length));
570 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
571 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
572
573 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
574 }
575
576 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
577 }
578 else
579 {
580 SvIV_set (sv_result, fiemap->fm_mapped_extents);
581 PUSHs (sv_result);
582 }
583 }
584#endif
585 }
586 else
587 PUSHs (sv_result);
588 break;
589
590 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
591 if (req->result > 0)
592 SvIV_set (sv_result, 0);
593 /* FALLTHROUGH */
594
443 default: 595 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 596 PUSHs (sv_result);
445 break; 597 break;
446 } 598 }
447 599
448 errno = req->errorno; 600 errno = req->errorno;
449 601
450 PUTBACK; 602 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 603 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 604 SPAGAIN;
605
606 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
607 SvREFCNT_dec (sv_result);
608 else
609 sv_result_cache = sv_result;
453 610
454 FREETMPS; 611 FREETMPS;
455 LEAVE; 612 LEAVE;
613
614 PUTBACK;
456 } 615 }
457 616
458 if (req->grp) 617 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} 618}
478 619
479static void req_free (aio_req req) 620static void
621req_destroy (aio_req req)
480{ 622{
481 if (req->self) 623 if (req->self)
482 { 624 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 625 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 626 SvREFCNT_dec (req->self);
485 } 627 }
486 628
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 629 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 630 SvREFCNT_dec (req->sv2);
631 SvREFCNT_dec (req->sv3);
632 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 633 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 634
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 635 free (req);
497} 636}
498 637
638static void
499static void req_cancel_subs (aio_req grp) 639req_cancel_subs (aio_req grp)
500{ 640{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 641 if (grp->type != EIO_GROUP)
504 return; 642 return;
505 643
506 SvREFCNT_dec (grp->fh2); 644 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 645 grp->sv2 = 0;
508 646
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 647 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 648}
512 649
513static void req_cancel (aio_req req) 650static void ecb_cold
651create_respipe (void)
514{ 652{
515 req->flags |= FLAG_CANCELLED; 653 if (s_epipe_renew (&respipe))
516 654 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 655}
519 656
520static void *aio_proc(void *arg); 657static void
521 658poll_wait (void)
522static void start_thread (void)
523{ 659{
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 req_send (req);
616
617 LOCK (wrklock);
618 --started;
619 UNLOCK (wrklock);
620}
621
622static void min_parallel (int nthreads)
623{
624 if (wanted < nthreads)
625 wanted = nthreads;
626}
627
628static void max_parallel (int nthreads)
629{
630 if (wanted > nthreads)
631 wanted = nthreads;
632
633 while (started > wanted)
634 end_thread ();
635}
636
637static void poll_wait ()
638{
639 fd_set rfd;
640
641 while (nreqs) 660 while (eio_nreqs ())
642 { 661 {
643 int size; 662 int size;
644 if (WORDREAD_UNSAFE) LOCK (reslock); 663
664 X_LOCK (reslock);
645 size = res_queue.size; 665 size = res_queue.size;
646 if (WORDREAD_UNSAFE) UNLOCK (reslock); 666 X_UNLOCK (reslock);
647 667
648 if (size) 668 if (size)
649 return; 669 return;
650 670
651 maybe_start_thread (); 671 etp_maybe_start_thread ();
652 672
653 FD_ZERO(&rfd); 673 s_epipe_wait (&respipe);
654 FD_SET(respipe [0], &rfd);
655
656 select (respipe [0] + 1, &rfd, 0, 0, 0);
657 } 674 }
658} 675}
659 676
660static int poll_cb (int max) 677static int
678poll_cb (void)
661{ 679{
662 dSP;
663 int count = 0;
664 int do_croak = 0;
665 aio_req req;
666
667 for (;;) 680 for (;;)
668 { 681 {
669 while (max <= 0 || count < max) 682 int res = eio_poll ();
683
684 if (res > 0)
685 croak (0);
686
687 if (!max_outstanding || max_outstanding > eio_nreqs ())
688 return res;
689
690 poll_wait ();
691 }
692}
693
694static void ecb_cold
695reinit (void)
696{
697 create_respipe ();
698
699 if (eio_init (want_poll, done_poll) < 0)
700 croak ("IO::AIO: unable to initialise eio library");
701}
702
703/*****************************************************************************/
704
705#if !_POSIX_MAPPED_FILES
706# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
707# define munmap(addr,length) EIO_ENOSYS ()
708#endif
709
710#if !_POSIX_MEMORY_PROTECTION
711# define mprotect(addr,len,prot) EIO_ENOSYS ()
712# define PROT_NONE 0
713# define PROT_WRITE 0
714# define MAP_PRIVATE 0
715# define MAP_SHARED 0
716# define MAP_FIXED 0
717#endif
718
719#define MMAP_MAGIC PERL_MAGIC_ext
720
721static int ecb_cold
722mmap_free (pTHX_ SV *sv, MAGIC *mg)
723{
724 int old_errno = errno;
725 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
726 errno = old_errno;
727
728 mg->mg_obj = 0; /* just in case */
729
730 SvREADONLY_off (sv);
731
732 if (SvPVX (sv) != mg->mg_ptr)
733 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
734
735 SvCUR_set (sv, 0);
736 SvPVX (sv) = 0;
737 SvOK_off (sv);
738
739 return 0;
740}
741
742static MGVTBL mmap_vtbl = {
743 0, 0, 0, 0, mmap_free
744};
745
746/*****************************************************************************/
747
748static SV *
749get_cb (SV *cb_sv)
750{
751 SvGETMAGIC (cb_sv);
752 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
753}
754
755static aio_req ecb_noinline
756dreq (SV *callback)
757{
758 SV *cb_cv;
759 aio_req req;
760 int req_pri = next_pri;
761 next_pri = EIO_PRI_DEFAULT;
762
763 cb_cv = get_cb (callback);
764
765 req = calloc (sizeof (*req), 1);
766 if (!req)
767 croak ("out of memory during eio_req allocation");
768
769 req->callback = SvREFCNT_inc (cb_cv);
770 req->pri = req_pri;
771
772 return req;
773}
774
775#define dREQ \
776 aio_req req = dreq (callback); \
777
778#define REQ_SEND \
779 PUTBACK; \
780 req_submit (req); \
781 SPAGAIN; \
782 \
783 if (GIMME_V != G_VOID) \
784 XPUSHs (req_sv (req, aio_req_stash));
785
786ecb_inline void
787req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
788{
789 if (expect_false (SvROK (path)))
790 {
791 SV *rv = SvRV (path);
792 SV *wdob;
793
794 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
670 { 795 {
671 maybe_start_thread (); 796 path = AvARRAY (rv)[1];
797 wdob = AvARRAY (rv)[0];
672 798
673 LOCK (reslock); 799 if (SvOK (wdob))
674 req = reqq_shift (&res_queue);
675
676 if (req)
677 { 800 {
678 --npending; 801 *wd = SvAIO_WD (wdob);
679 802 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
680 if (!res_queue.size)
681 {
682 /* read any signals sent by the worker threads */
683 char buf [32];
684 while (read (respipe [0], buf, 32) == 32)
685 ;
686 }
687 }
688
689 UNLOCK (reslock);
690
691 if (!req)
692 break;
693
694 --nreqs;
695
696 if (req->type == REQ_GROUP && req->length)
697 {
698 req->fd = 1; /* mark request as delayed */
699 continue;
700 } 803 }
701 else 804 else
702 { 805 *wd = EIO_INVALID_WD;
703 if (req->type == REQ_READ)
704 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707 SvREADONLY_off (req->data);
708
709 if (req->statdata)
710 {
711 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
712 PL_laststatval = req->result;
713 PL_statcache = *(req->statdata);
714 }
715
716 req_invoke (req);
717
718 count++;
719 }
720
721 req_free (req);
722 } 806 }
807 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
808 {
809 *wd = (aio_wd)(long)SvIVX (rv);
810 *wdsv = SvREFCNT_inc_NN (rv);
811 *ptr = ".";
812 return; /* path set to "." */
813 }
814 else
815 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
816 }
723 817
724 if (nreqs <= max_outstanding) 818 *pathsv = newSVsv (path);
819 *ptr = SvPVbyte_nolen (*pathsv);
820}
821
822static void ecb_noinline
823req_set_path1 (aio_req req, SV *path)
824{
825 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
826}
827
828static void ecb_noinline
829req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
830{
831 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
832
833 switch (SvTYPE (rv))
834 {
835 case SVt_PVIO:
836 case SVt_PVLV:
837 case SVt_PVGV:
838 req->type = type_fh;
839 req->sv1 = newSVsv (fh_or_path);
840 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725 break; 841 break;
726 842
727 poll_wait (); 843 default:
728 844 req->type = type_path;
729 max = 0; 845 req_set_path1 (req, fh_or_path);
846 break;
730 } 847 }
731
732 return count;
733} 848}
734 849
735static void create_pipe () 850XS(boot_IO__AIO) ecb_cold;
736{
737 if (pipe (respipe))
738 croak ("unable to initialize result pipe");
739 851
740 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741 croak ("cannot set result pipe to nonblocking mode");
742
743 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745}
746
747/*****************************************************************************/
748/* work around various missing functions */
749
750#if !HAVE_PREADWRITE
751# define pread aio_pread
752# define pwrite aio_pwrite
753
754/*
755 * make our pread/pwrite safe against themselves, but not against
756 * normal read/write by using a mutex. slows down execution a lot,
757 * but that's your problem, not mine.
758 */
759static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
760
761static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
762{
763 ssize_t res;
764 off_t ooffset;
765
766 LOCK (preadwritelock);
767 ooffset = lseek (fd, 0, SEEK_CUR);
768 lseek (fd, offset, SEEK_SET);
769 res = read (fd, buf, count);
770 lseek (fd, ooffset, SEEK_SET);
771 UNLOCK (preadwritelock);
772
773 return res;
774}
775
776static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
777{
778 ssize_t res;
779 off_t ooffset;
780
781 LOCK (preadwritelock);
782 ooffset = lseek (fd, 0, SEEK_CUR);
783 lseek (fd, offset, SEEK_SET);
784 res = write (fd, buf, count);
785 lseek (fd, offset, SEEK_SET);
786 UNLOCK (preadwritelock);
787
788 return res;
789}
790#endif
791
792#if !HAVE_FDATASYNC
793# define fdatasync fsync
794#endif
795
796#if !HAVE_READAHEAD
797# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798
799static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
800{
801 dBUF;
802
803 while (count > 0)
804 {
805 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
806
807 pread (fd, aio_buf, len, offset);
808 offset += len;
809 count -= len;
810 }
811
812 errno = 0;
813}
814
815#endif
816
817#if !HAVE_READDIR_R
818# define readdir_r aio_readdir_r
819
820static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
821
822static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
823{
824 struct dirent *e;
825 int errorno;
826
827 LOCK (readdirlock);
828
829 e = readdir (dirp);
830 errorno = errno;
831
832 if (e)
833 {
834 *res = ent;
835 strcpy (ent->d_name, e->d_name);
836 }
837 else
838 *res = 0;
839
840 UNLOCK (readdirlock);
841
842 errno = errorno;
843 return e ? 0 : -1;
844}
845#endif
846
847/* sendfile always needs emulation */
848static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
849{
850 ssize_t res;
851
852 if (!count)
853 return 0;
854
855#if HAVE_SENDFILE
856# if __linux
857 res = sendfile (ofd, ifd, &offset, count);
858
859# elif __freebsd
860 /*
861 * Of course, the freebsd sendfile is a dire hack with no thoughts
862 * wasted on making it similar to other I/O functions.
863 */
864 {
865 off_t sbytes;
866 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
867
868 if (res < 0 && sbytes)
869 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
870 res = sbytes;
871 }
872
873# elif __hpux
874 res = sendfile (ofd, ifd, offset, count, 0, 0);
875
876# elif __solaris
877 {
878 struct sendfilevec vec;
879 size_t sbytes;
880
881 vec.sfv_fd = ifd;
882 vec.sfv_flag = 0;
883 vec.sfv_off = offset;
884 vec.sfv_len = count;
885
886 res = sendfilev (ofd, &vec, 1, &sbytes);
887
888 if (res < 0 && sbytes)
889 res = sbytes;
890 }
891
892# endif
893#else
894 res = -1;
895 errno = ENOSYS;
896#endif
897
898 if (res < 0
899 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
900#if __solaris
901 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
902#endif
903 )
904 )
905 {
906 /* emulate sendfile. this is a major pain in the ass */
907 dBUF;
908
909 res = 0;
910
911 while (count)
912 {
913 ssize_t cnt;
914
915 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
916
917 if (cnt <= 0)
918 {
919 if (cnt && !res) res = -1;
920 break;
921 }
922
923 cnt = write (ofd, aio_buf, cnt);
924
925 if (cnt <= 0)
926 {
927 if (cnt && !res) res = -1;
928 break;
929 }
930
931 offset += cnt;
932 res += cnt;
933 count -= cnt;
934 }
935 }
936
937 return res;
938}
939
940/* read a full directory */
941static void scandir_ (aio_req req, worker *self)
942{
943 DIR *dirp;
944 union
945 {
946 struct dirent d;
947 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
948 } *u;
949 struct dirent *entp;
950 char *name, *names;
951 int memlen = 4096;
952 int memofs = 0;
953 int res = 0;
954 int errorno;
955
956 LOCK (wrklock);
957 self->dirp = dirp = opendir (req->dataptr);
958 self->dbuf = u = malloc (sizeof (*u));
959 req->data2ptr = names = malloc (memlen);
960 UNLOCK (wrklock);
961
962 if (dirp && u && names)
963 for (;;)
964 {
965 errno = 0;
966 readdir_r (dirp, &u->d, &entp);
967
968 if (!entp)
969 break;
970
971 name = entp->d_name;
972
973 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
974 {
975 int len = strlen (name) + 1;
976
977 res++;
978
979 while (memofs + len > memlen)
980 {
981 memlen *= 2;
982 LOCK (wrklock);
983 req->data2ptr = names = realloc (names, memlen);
984 UNLOCK (wrklock);
985
986 if (!names)
987 break;
988 }
989
990 memcpy (names + memofs, name, len);
991 memofs += len;
992 }
993 }
994
995 if (errno)
996 res = -1;
997
998 req->result = res;
999}
1000
1001/*****************************************************************************/
1002
1003static void *aio_proc (void *thr_arg)
1004{
1005 aio_req req;
1006 worker *self = (worker *)thr_arg;
1007
1008 for (;;)
1009 {
1010 LOCK (reqlock);
1011
1012 for (;;)
1013 {
1014 self->req = req = reqq_shift (&req_queue);
1015
1016 if (req)
1017 break;
1018
1019 pthread_cond_wait (&reqwait, &reqlock);
1020 }
1021
1022 --nready;
1023
1024 UNLOCK (reqlock);
1025
1026 errno = 0; /* strictly unnecessary */
1027
1028 if (!(req->flags & FLAG_CANCELLED))
1029 switch (req->type)
1030 {
1031 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1032 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1033
1034 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1035 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1036
1037 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1038 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1039 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1040
1041 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1042 case REQ_CLOSE: req->result = close (req->fd); break;
1043 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1044 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1045 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1046 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1047 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1048 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1049
1050 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1051 case REQ_FSYNC: req->result = fsync (req->fd); break;
1052 case REQ_READDIR: scandir_ (req, self); break;
1053
1054 case REQ_BUSY:
1055 {
1056 struct timeval tv;
1057
1058 tv.tv_sec = req->fd;
1059 tv.tv_usec = req->fd2;
1060
1061 req->result = select (0, 0, 0, 0, &tv);
1062 }
1063
1064 case REQ_GROUP:
1065 case REQ_NOP:
1066 break;
1067
1068 case REQ_QUIT:
1069 LOCK (wrklock);
1070 worker_free (self);
1071 --started;
1072 UNLOCK (wrklock);
1073 return 0;
1074
1075 default:
1076 req->result = ENOSYS;
1077 break;
1078 }
1079
1080 req->errorno = errno;
1081
1082 LOCK (reslock);
1083
1084 ++npending;
1085
1086 if (!reqq_push (&res_queue, req))
1087 /* write a dummy byte to the pipe so fh becomes ready */
1088 write (respipe [1], &respipe, 1);
1089
1090 self->req = 0;
1091 worker_clear (self);
1092
1093 UNLOCK (reslock);
1094 }
1095}
1096
1097/*****************************************************************************/
1098
1099static void atfork_prepare (void)
1100{
1101 LOCK (wrklock);
1102 LOCK (reqlock);
1103 LOCK (reslock);
1104#if !HAVE_PREADWRITE
1105 LOCK (preadwritelock);
1106#endif
1107#if !HAVE_READDIR_R
1108 LOCK (readdirlock);
1109#endif
1110}
1111
1112static void atfork_parent (void)
1113{
1114#if !HAVE_READDIR_R
1115 UNLOCK (readdirlock);
1116#endif
1117#if !HAVE_PREADWRITE
1118 UNLOCK (preadwritelock);
1119#endif
1120 UNLOCK (reslock);
1121 UNLOCK (reqlock);
1122 UNLOCK (wrklock);
1123}
1124
1125static void atfork_child (void)
1126{
1127 aio_req prv;
1128
1129 while (prv = reqq_shift (&req_queue))
1130 req_free (prv);
1131
1132 while (prv = reqq_shift (&res_queue))
1133 req_free (prv);
1134
1135 while (wrk_first.next != &wrk_first)
1136 {
1137 worker *wrk = wrk_first.next;
1138
1139 if (wrk->req)
1140 req_free (wrk->req);
1141
1142 worker_clear (wrk);
1143 worker_free (wrk);
1144 }
1145
1146 started = 0;
1147 nreqs = 0;
1148
1149 close (respipe [0]);
1150 close (respipe [1]);
1151 create_pipe ();
1152
1153 atfork_parent ();
1154}
1155
1156#define dREQ \
1157 aio_req req; \
1158 int req_pri = next_pri; \
1159 next_pri = DEFAULT_PRI + PRI_BIAS; \
1160 \
1161 if (SvOK (callback) && !SvROK (callback)) \
1162 croak ("callback must be undef or of reference type"); \
1163 \
1164 Newz (0, req, 1, aio_cb); \
1165 if (!req) \
1166 croak ("out of memory during aio_req allocation"); \
1167 \
1168 req->callback = newSVsv (callback); \
1169 req->pri = req_pri
1170
1171#define REQ_SEND \
1172 req_send (req); \
1173 \
1174 if (GIMME_V != G_VOID) \
1175 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1176
1177MODULE = IO::AIO PACKAGE = IO::AIO 852MODULE = IO::AIO PACKAGE = IO::AIO
1178 853
1179PROTOTYPES: ENABLE 854PROTOTYPES: ENABLE
1180 855
1181BOOT: 856BOOT:
1182{ 857{
858 static const struct {
859 const char *name;
860 IV iv;
861 } *civ, const_iv[] = {
862# define const_niv(name, value) { # name, (IV) value },
863# define const_iv(name) { # name, (IV) name },
864# define const_eio(name) { # name, (IV) EIO_ ## name },
865
866 /* you have to re-run ./gendef0 after adding/Removing any constants here */
867
868 const_iv (ENOSYS)
869 const_iv (EXDEV)
870 const_iv (EBADR)
871
872 const_iv (O_RDONLY)
873 const_iv (O_WRONLY)
874 const_iv (O_RDWR)
875 const_iv (O_CREAT)
876 const_iv (O_TRUNC)
877 const_iv (O_EXCL)
878 const_iv (O_APPEND)
879
880 const_iv (O_ASYNC)
881 const_iv (O_DIRECT)
882 const_iv (O_NOATIME)
883
884 const_iv (O_CLOEXEC)
885 const_iv (O_NOCTTY)
886 const_iv (O_NOFOLLOW)
887 const_iv (O_NONBLOCK)
888 const_iv (O_EXEC)
889 const_iv (O_SEARCH)
890 const_iv (O_DIRECTORY)
891 const_iv (O_DSYNC)
892 const_iv (O_RSYNC)
893 const_iv (O_SYNC)
894 const_iv (O_TTY_INIT)
895
896 const_iv (S_IFIFO)
897 const_iv (S_IFCHR)
898 const_iv (S_IFBLK)
899 const_iv (S_IFLNK)
900 const_iv (S_IFREG)
901 const_iv (S_IFDIR)
902 const_iv (S_IFWHT)
903 const_iv (S_IFSOCK)
904 const_iv (S_IFMT)
905
906 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
907 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
908 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
909 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
910 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
911 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
912
913 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
914 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
915 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
916 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
917 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
918
919 const_iv (ST_RDONLY)
920 const_iv (ST_NOSUID)
921 const_iv (ST_NODEV)
922 const_iv (ST_NOEXEC)
923 const_iv (ST_SYNCHRONOUS)
924 const_iv (ST_MANDLOCK)
925 const_iv (ST_WRITE)
926 const_iv (ST_APPEND)
927 const_iv (ST_IMMUTABLE)
928 const_iv (ST_NOATIME)
929 const_iv (ST_NODIRATIME)
930 const_iv (ST_RELATIME)
931
932 const_iv (PROT_NONE)
933 const_iv (PROT_EXEC)
934 const_iv (PROT_READ)
935 const_iv (PROT_WRITE)
936
937 /*const_iv (MAP_FIXED)*/
938 const_iv (MAP_PRIVATE)
939 const_iv (MAP_SHARED)
940 const_iv (MAP_ANONYMOUS)
941
942 /* linuxish */
943 const_iv (MAP_HUGETLB)
944 const_iv (MAP_LOCKED)
945 const_iv (MAP_NORESERVE)
946 const_iv (MAP_POPULATE)
947 const_iv (MAP_NONBLOCK)
948
949 const_iv (FIEMAP_FLAG_SYNC)
950 const_iv (FIEMAP_FLAG_XATTR)
951 const_iv (FIEMAP_FLAGS_COMPAT)
952 const_iv (FIEMAP_EXTENT_LAST)
953 const_iv (FIEMAP_EXTENT_UNKNOWN)
954 const_iv (FIEMAP_EXTENT_DELALLOC)
955 const_iv (FIEMAP_EXTENT_ENCODED)
956 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
957 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
958 const_iv (FIEMAP_EXTENT_DATA_INLINE)
959 const_iv (FIEMAP_EXTENT_DATA_TAIL)
960 const_iv (FIEMAP_EXTENT_UNWRITTEN)
961 const_iv (FIEMAP_EXTENT_MERGED)
962 const_iv (FIEMAP_EXTENT_SHARED)
963
964 const_iv (SPLICE_F_MOVE)
965 const_iv (SPLICE_F_NONBLOCK)
966 const_iv (SPLICE_F_MORE)
967 const_iv (SPLICE_F_GIFT)
968
969 const_iv (SEEK_DATA)
970 const_iv (SEEK_HOLE)
971
972 /* libeio constants */
973 const_eio (SEEK_SET)
974 const_eio (SEEK_CUR)
975 const_eio (SEEK_END)
976
977 const_eio (MCL_FUTURE)
978 const_eio (MCL_CURRENT)
979
980 const_eio (MS_ASYNC)
981 const_eio (MS_INVALIDATE)
982 const_eio (MS_SYNC)
983
984 const_eio (MT_MODIFY)
985
986 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
987 const_eio (SYNC_FILE_RANGE_WRITE)
988 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
989
990 const_eio (FALLOC_FL_KEEP_SIZE)
991 const_eio (FALLOC_FL_PUNCH_HOLE)
992
993 const_eio (READDIR_DENTS)
994 const_eio (READDIR_DIRS_FIRST)
995 const_eio (READDIR_STAT_ORDER)
996 const_eio (READDIR_FOUND_UNKNOWN)
997
998 const_eio (DT_UNKNOWN)
999 const_eio (DT_FIFO)
1000 const_eio (DT_CHR)
1001 const_eio (DT_DIR)
1002 const_eio (DT_BLK)
1003 const_eio (DT_REG)
1004 const_eio (DT_LNK)
1005 const_eio (DT_SOCK)
1006 const_eio (DT_WHT)
1007 };
1008
1183 HV *stash = gv_stashpv ("IO::AIO", 1); 1009 aio_stash = gv_stashpv ("IO::AIO" , 1);
1010 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1011 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1012 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1184 1013
1185 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1014 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1186 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1015 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1187 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1188 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1189 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1190 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1191 1016
1192 create_pipe (); 1017 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1193 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1194 1018
1195 start_thread (); 1019 reinit ();
1196} 1020}
1197 1021
1198void 1022void
1199min_parallel (int nthreads) 1023reinit ()
1200 PROTOTYPE: $ 1024 PROTOTYPE:
1201 1025
1202void 1026void
1203max_parallel (int nthreads) 1027max_poll_reqs (unsigned int nreqs)
1204 PROTOTYPE: $
1205
1206int
1207max_outstanding (int maxreqs)
1208 PROTOTYPE: $ 1028 PROTOTYPE: $
1209 CODE: 1029 CODE:
1210 RETVAL = max_outstanding; 1030 eio_set_max_poll_reqs (nreqs);
1031
1032void
1033max_poll_time (double nseconds)
1034 PROTOTYPE: $
1035 CODE:
1036 eio_set_max_poll_time (nseconds);
1037
1038void
1039min_parallel (unsigned int nthreads)
1040 PROTOTYPE: $
1041 CODE:
1042 eio_set_min_parallel (nthreads);
1043
1044void
1045max_parallel (unsigned int nthreads)
1046 PROTOTYPE: $
1047 CODE:
1048 eio_set_max_parallel (nthreads);
1049
1050void
1051max_idle (unsigned int nthreads)
1052 PROTOTYPE: $
1053 CODE:
1054 eio_set_max_idle (nthreads);
1055
1056void
1057idle_timeout (unsigned int seconds)
1058 PROTOTYPE: $
1059 CODE:
1060 eio_set_idle_timeout (seconds);
1061
1062void
1063max_outstanding (unsigned int maxreqs)
1064 PROTOTYPE: $
1065 CODE:
1211 max_outstanding = maxreqs; 1066 max_outstanding = maxreqs;
1212 OUTPUT:
1213 RETVAL
1214 1067
1215void 1068void
1216aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1069aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1217 SV * pathname
1218 int flags
1219 int mode
1220 SV * callback
1221 PROTOTYPE: $$$;$
1222 PPCODE: 1070 PPCODE:
1223{ 1071{
1224 dREQ; 1072 dREQ;
1225 1073
1226 req->type = REQ_OPEN; 1074 req->type = EIO_WD_OPEN;
1227 req->data = newSVsv (pathname); 1075 req_set_path1 (req, pathname);
1228 req->dataptr = SvPVbyte_nolen (req->data);
1229 req->fd = flags;
1230 req->mode = mode;
1231 1076
1232 REQ_SEND; 1077 REQ_SEND;
1233} 1078}
1234 1079
1235void 1080void
1081aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1082 PPCODE:
1083{
1084 dREQ;
1085
1086 req->type = EIO_OPEN;
1087 req_set_path1 (req, pathname);
1088 req->int1 = flags;
1089 req->int2 = mode;
1090
1091 REQ_SEND;
1092}
1093
1094void
1236aio_close (fh,callback=&PL_sv_undef) 1095aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1237 SV * fh
1238 SV * callback
1239 PROTOTYPE: $;$
1240 ALIAS: 1096 ALIAS:
1241 aio_close = REQ_CLOSE
1242 aio_fsync = REQ_FSYNC 1097 aio_fsync = EIO_FSYNC
1243 aio_fdatasync = REQ_FDATASYNC 1098 aio_fdatasync = EIO_FDATASYNC
1099 aio_syncfs = EIO_SYNCFS
1244 PPCODE: 1100 PPCODE:
1245{ 1101{
1102 int fd = s_fileno_croak (fh, 0);
1246 dREQ; 1103 dREQ;
1247 1104
1248 req->type = ix; 1105 req->type = ix;
1249 req->fh = newSVsv (fh); 1106 req->sv1 = newSVsv (fh);
1250 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1107 req->int1 = fd;
1251 1108
1252 REQ_SEND (req); 1109 REQ_SEND;
1253} 1110}
1254 1111
1255void 1112void
1113aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1114 PPCODE:
1115{
1116 int fd = s_fileno_croak (fh, 0);
1117 dREQ;
1118
1119 req->type = EIO_SYNC_FILE_RANGE;
1120 req->sv1 = newSVsv (fh);
1121 req->int1 = fd;
1122 req->offs = offset;
1123 req->size = nbytes;
1124 req->int2 = flags;
1125
1126 REQ_SEND;
1127}
1128
1129void
1130aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1131 PPCODE:
1132{
1133 int fd = s_fileno_croak (fh, 0);
1134 dREQ;
1135
1136 req->type = EIO_FALLOCATE;
1137 req->sv1 = newSVsv (fh);
1138 req->int1 = fd;
1139 req->int2 = mode;
1140 req->offs = offset;
1141 req->size = len;
1142
1143 REQ_SEND;
1144}
1145
1146void
1147aio_close (SV *fh, SV *callback=&PL_sv_undef)
1148 PPCODE:
1149{
1150 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1151 int fd = s_fileno_croak (fh, 0);
1152 dREQ;
1153
1154 if (expect_false (close_fd < 0))
1155 {
1156 int pipefd [2];
1157
1158 if (
1159#ifdef _WIN32
1160 _pipe (pipefd, 1, _O_BINARY) < 0
1161#else
1162 pipe (pipefd) < 0
1163 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1164#endif
1165 || close (pipefd [1]) < 0
1166 )
1167 abort (); /*D*/
1168
1169 close_fd = pipefd [0];
1170 }
1171
1172 req->type = EIO_DUP2;
1173 req->int1 = close_fd;
1174 req->sv2 = newSVsv (fh);
1175 req->int2 = fd;
1176
1177 REQ_SEND;
1178}
1179
1180void
1181aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1182 PPCODE:
1183{
1184 int fd = s_fileno_croak (fh, 0);
1185 dREQ;
1186
1187 req->type = EIO_SEEK;
1188 req->sv1 = newSVsv (fh);
1189 req->int1 = fd;
1190 req->offs = SvVAL64 (offset);
1191 req->int2 = whence;
1192
1193 REQ_SEND;
1194}
1195
1196void
1256aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1257 SV * fh
1258 UV offset
1259 UV length
1260 SV * data
1261 UV dataoffset
1262 SV * callback
1263 ALIAS: 1198 ALIAS:
1264 aio_read = REQ_READ 1199 aio_read = EIO_READ
1265 aio_write = REQ_WRITE 1200 aio_write = EIO_WRITE
1266 PROTOTYPE: $$$$$;$
1267 PPCODE: 1201 PPCODE:
1268{ 1202{
1269 aio_req req;
1270 STRLEN svlen; 1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1271 char *svptr = SvPVbyte (data, svlen); 1205 char *svptr = SvPVbyte (data, svlen);
1272 1206 UV len = SvUV (length);
1273 SvUPGRADE (data, SVt_PV);
1274 SvPOK_on (data);
1275 1207
1276 if (dataoffset < 0) 1208 if (dataoffset < 0)
1277 dataoffset += svlen; 1209 dataoffset += svlen;
1278 1210
1279 if (dataoffset < 0 || dataoffset > svlen) 1211 if (dataoffset < 0 || dataoffset > svlen)
1280 croak ("data offset outside of string"); 1212 croak ("dataoffset outside of data scalar");
1281 1213
1282 if (ix == REQ_WRITE) 1214 if (ix == EIO_WRITE)
1283 { 1215 {
1284 /* write: check length and adjust. */ 1216 /* write: check length and adjust. */
1285 if (length < 0 || length + dataoffset > svlen) 1217 if (!SvOK (length) || len + dataoffset > svlen)
1286 length = svlen - dataoffset; 1218 len = svlen - dataoffset;
1287 } 1219 }
1288 else 1220 else
1289 { 1221 {
1290 /* read: grow scalar as necessary */ 1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1224 if (SvLEN (data) >= SvCUR (data))
1291 svptr = SvGROW (data, length + dataoffset); 1225 svptr = SvGROW (data, len + dataoffset + 1);
1226 else if (SvCUR (data) < len + dataoffset)
1227 croak ("length + dataoffset outside of scalar, and cannot grow");
1292 } 1228 }
1293
1294 if (length < 0)
1295 croak ("length must not be negative");
1296 1229
1297 { 1230 {
1298 dREQ; 1231 dREQ;
1299 1232
1300 req->type = ix; 1233 req->type = ix;
1301 req->fh = newSVsv (fh); 1234 req->sv1 = newSVsv (fh);
1302 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1235 req->int1 = fd;
1303 : IoOFP (sv_2io (fh))); 1236 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1304 req->offset = offset; 1237 req->size = len;
1305 req->length = length;
1306 req->data = SvREFCNT_inc (data); 1238 req->sv2 = SvREFCNT_inc (data);
1307 req->dataptr = (char *)svptr + dataoffset; 1239 req->ptr2 = (char *)svptr + dataoffset;
1240 req->stroffset = dataoffset;
1308 1241
1309 if (!SvREADONLY (data)) 1242 if (!SvREADONLY (data))
1310 { 1243 {
1311 SvREADONLY_on (data); 1244 SvREADONLY_on (data);
1312 req->data2ptr = (void *)data; 1245 req->flags |= FLAG_SV2_RO_OFF;
1313 } 1246 }
1314 1247
1315 REQ_SEND; 1248 REQ_SEND;
1316 } 1249 }
1317} 1250}
1318 1251
1319void 1252void
1320aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1253aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1321 SV * out_fh 1254 ALIAS:
1322 SV * in_fh 1255 aio_readlink = EIO_READLINK
1323 UV in_offset 1256 aio_realpath = EIO_REALPATH
1324 UV length
1325 SV * callback
1326 PROTOTYPE: $$$$;$
1327 PPCODE: 1257 PPCODE:
1328{ 1258{
1259 dREQ;
1260
1261 req->type = ix;
1262 req_set_path1 (req, pathname);
1263
1264 REQ_SEND;
1265}
1266
1267void
1268aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1269 PPCODE:
1270{
1271 int ifd = s_fileno_croak (in_fh , 0);
1272 int ofd = s_fileno_croak (out_fh, 1);
1329 dREQ; 1273 dREQ;
1330 1274
1331 req->type = REQ_SENDFILE; 1275 req->type = EIO_SENDFILE;
1332 req->fh = newSVsv (out_fh); 1276 req->sv1 = newSVsv (out_fh);
1333 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1277 req->int1 = ofd;
1334 req->fh2 = newSVsv (in_fh); 1278 req->sv2 = newSVsv (in_fh);
1335 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1279 req->int2 = ifd;
1336 req->offset = in_offset; 1280 req->offs = in_offset;
1337 req->length = length; 1281 req->size = length;
1338 1282
1339 REQ_SEND; 1283 REQ_SEND;
1340} 1284}
1341 1285
1342void 1286void
1343aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1287aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1344 SV * fh
1345 UV offset
1346 IV length
1347 SV * callback
1348 PROTOTYPE: $$$;$
1349 PPCODE: 1288 PPCODE:
1350{ 1289{
1290 int fd = s_fileno_croak (fh, 0);
1351 dREQ; 1291 dREQ;
1352 1292
1353 req->type = REQ_READAHEAD; 1293 req->type = EIO_READAHEAD;
1354 req->fh = newSVsv (fh); 1294 req->sv1 = newSVsv (fh);
1355 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1295 req->int1 = fd;
1356 req->offset = offset; 1296 req->offs = offset;
1357 req->length = length; 1297 req->size = length;
1358 1298
1359 REQ_SEND; 1299 REQ_SEND;
1360} 1300}
1361 1301
1362void 1302void
1363aio_stat (fh_or_path,callback=&PL_sv_undef) 1303aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1364 SV * fh_or_path
1365 SV * callback
1366 ALIAS: 1304 ALIAS:
1367 aio_stat = REQ_STAT 1305 aio_stat = EIO_STAT
1368 aio_lstat = REQ_LSTAT 1306 aio_lstat = EIO_LSTAT
1307 aio_statvfs = EIO_STATVFS
1369 PPCODE: 1308 PPCODE:
1370{ 1309{
1371 dREQ; 1310 dREQ;
1372 1311
1373 New (0, req->statdata, 1, Stat_t); 1312 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1374 if (!req->statdata)
1375 {
1376 req_free (req);
1377 croak ("out of memory during aio_req->statdata allocation");
1378 }
1379
1380 if (SvPOK (fh_or_path))
1381 {
1382 req->type = ix;
1383 req->data = newSVsv (fh_or_path);
1384 req->dataptr = SvPVbyte_nolen (req->data);
1385 }
1386 else
1387 {
1388 req->type = REQ_FSTAT;
1389 req->fh = newSVsv (fh_or_path);
1390 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1391 }
1392 1313
1393 REQ_SEND; 1314 REQ_SEND;
1394} 1315}
1395 1316
1317UV
1318major (UV dev)
1319 ALIAS:
1320 minor = 1
1321 CODE:
1322 RETVAL = ix ? major (dev) : minor (dev);
1323 OUTPUT:
1324 RETVAL
1325
1326UV
1327makedev (UV maj, UV min)
1328 CODE:
1329 RETVAL = makedev (maj, min);
1330 OUTPUT:
1331 RETVAL
1332
1396void 1333void
1334aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1340 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1341 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1342
1343 REQ_SEND;
1344}
1345
1346void
1347aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1348 PPCODE:
1349{
1350 dREQ;
1351
1352 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1353 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1354
1355 REQ_SEND;
1356}
1357
1358void
1359aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1360 PPCODE:
1361{
1362 dREQ;
1363
1364 req->int2 = mode;
1365 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1366
1367 REQ_SEND;
1368}
1369
1370void
1371aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1372 PPCODE:
1373{
1374 dREQ;
1375
1376 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1377 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1378 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1379
1380 REQ_SEND;
1381}
1382
1383void
1384aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1385 PPCODE:
1386{
1387 dREQ;
1388
1389 req->type = EIO_READDIR;
1390 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1391
1392 if (flags & EIO_READDIR_DENTS)
1393 req->int1 |= EIO_READDIR_CUSTOM2;
1394
1395 req_set_path1 (req, pathname);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1402 PPCODE:
1403{
1404 dREQ;
1405
1406 req->type = EIO_MKDIR;
1407 req->int2 = mode;
1408 req_set_path1 (req, pathname);
1409
1410 REQ_SEND;
1411}
1412
1413void
1397aio_unlink (pathname,callback=&PL_sv_undef) 1414aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1398 SV * pathname
1399 SV * callback
1400 ALIAS: 1415 ALIAS:
1401 aio_unlink = REQ_UNLINK 1416 aio_unlink = EIO_UNLINK
1402 aio_rmdir = REQ_RMDIR 1417 aio_rmdir = EIO_RMDIR
1403 aio_readdir = REQ_READDIR 1418 aio_readdir = EIO_READDIR
1404 PPCODE: 1419 PPCODE:
1405{ 1420{
1406 dREQ; 1421 dREQ;
1407 1422
1408 req->type = ix; 1423 req->type = ix;
1409 req->data = newSVsv (pathname); 1424 req_set_path1 (req, pathname);
1410 req->dataptr = SvPVbyte_nolen (req->data); 1425
1411
1412 REQ_SEND; 1426 REQ_SEND;
1413} 1427}
1414 1428
1415void 1429void
1416aio_link (oldpath,newpath,callback=&PL_sv_undef) 1430aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1417 SV * oldpath
1418 SV * newpath
1419 SV * callback
1420 ALIAS: 1431 ALIAS:
1421 aio_link = REQ_LINK 1432 aio_link = EIO_LINK
1422 aio_symlink = REQ_SYMLINK 1433 aio_symlink = EIO_SYMLINK
1423 aio_rename = REQ_RENAME 1434 aio_rename = EIO_RENAME
1424 PPCODE: 1435 PPCODE:
1425{ 1436{
1437 eio_wd wd2 = 0;
1426 dREQ; 1438 dREQ;
1427 1439
1428 req->type = ix; 1440 req->type = ix;
1429 req->fh = newSVsv (oldpath); 1441 req_set_path1 (req, oldpath);
1430 req->data2ptr = SvPVbyte_nolen (req->fh); 1442 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1431 req->data = newSVsv (newpath); 1443 req->int3 = (long)wd2;
1432 req->dataptr = SvPVbyte_nolen (req->data);
1433 1444
1434 REQ_SEND; 1445 REQ_SEND;
1435} 1446}
1436 1447
1437void 1448void
1438aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1449aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1439 SV * pathname
1440 SV * callback
1441 UV mode
1442 UV dev
1443 PPCODE: 1450 PPCODE:
1444{ 1451{
1445 dREQ; 1452 dREQ;
1446 1453
1447 req->type = REQ_MKNOD; 1454 req->type = EIO_MKNOD;
1448 req->data = newSVsv (pathname);
1449 req->dataptr = SvPVbyte_nolen (req->data);
1450 req->mode = (mode_t)mode; 1455 req->int2 = (mode_t)mode;
1451 req->offset = dev; 1456 req->offs = dev;
1457 req_set_path1 (req, pathname);
1452 1458
1453 REQ_SEND; 1459 REQ_SEND;
1454} 1460}
1455 1461
1456void 1462void
1463aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1464 ALIAS:
1465 aio_mtouch = EIO_MTOUCH
1466 aio_msync = EIO_MSYNC
1467 PPCODE:
1468{
1469 STRLEN svlen;
1470 char *svptr = SvPVbyte (data, svlen);
1471 UV len = SvUV (length);
1472
1473 if (offset < 0)
1474 offset += svlen;
1475
1476 if (offset < 0 || offset > svlen)
1477 croak ("offset outside of scalar");
1478
1479 if (!SvOK (length) || len + offset > svlen)
1480 len = svlen - offset;
1481
1482 {
1483 dREQ;
1484
1485 req->type = ix;
1486 req->sv2 = SvREFCNT_inc (data);
1487 req->ptr2 = (char *)svptr + offset;
1488 req->size = len;
1489 req->int1 = flags;
1490
1491 REQ_SEND;
1492 }
1493}
1494
1495void
1496aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1497 PPCODE:
1498{
1499 STRLEN svlen;
1500 char *svptr = SvPVbyte (data, svlen);
1501 UV len = SvUV (length);
1502
1503 if (offset < 0)
1504 offset += svlen;
1505
1506 if (offset < 0 || offset > svlen)
1507 croak ("offset outside of scalar");
1508
1509 if (!SvOK (length) || len + offset > svlen)
1510 len = svlen - offset;
1511
1512 {
1513 dREQ;
1514
1515 req->type = EIO_MLOCK;
1516 req->sv2 = SvREFCNT_inc (data);
1517 req->ptr2 = (char *)svptr + offset;
1518 req->size = len;
1519
1520 REQ_SEND;
1521 }
1522}
1523
1524void
1525aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1526 PPCODE:
1527{
1528 dREQ;
1529
1530 req->type = EIO_MLOCKALL;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534}
1535
1536void
1537aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_CUSTOM;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546
1547 req->feed = fiemap;
1548#if HAVE_FIEMAP
1549 /* keep our fingers crossed that the next two types are 64 bit */
1550 req->offs = start;
1551 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1552 req->int2 = flags;
1553 req->int3 = SvOK (count) ? SvIV (count) : -1;
1554#endif
1555
1556 REQ_SEND;
1557}
1558
1559void
1457aio_busy (delay,callback=&PL_sv_undef) 1560aio_busy (double delay, SV *callback=&PL_sv_undef)
1458 double delay
1459 SV * callback
1460 PPCODE: 1561 PPCODE:
1461{ 1562{
1462 dREQ; 1563 dREQ;
1463 1564
1464 req->type = REQ_BUSY; 1565 req->type = EIO_BUSY;
1465 req->fd = delay < 0. ? 0 : delay; 1566 req->nv1 = delay < 0. ? 0. : delay;
1466 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1467 1567
1468 REQ_SEND; 1568 REQ_SEND;
1469} 1569}
1470 1570
1471void 1571void
1472aio_group (callback=&PL_sv_undef) 1572aio_group (SV *callback=&PL_sv_undef)
1473 SV * callback
1474 PROTOTYPE: ;$
1475 PPCODE: 1573 PPCODE:
1476{ 1574{
1477 dREQ; 1575 dREQ;
1478 1576
1479 req->type = REQ_GROUP; 1577 req->type = EIO_GROUP;
1578
1480 req_send (req); 1579 req_submit (req);
1481
1482 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1580 XPUSHs (req_sv (req, aio_grp_stash));
1483} 1581}
1484 1582
1485void 1583void
1486aio_nop (callback=&PL_sv_undef) 1584aio_nop (SV *callback=&PL_sv_undef)
1487 SV * callback 1585 ALIAS:
1586 aio_nop = EIO_NOP
1587 aio_sync = EIO_SYNC
1488 PPCODE: 1588 PPCODE:
1489{ 1589{
1490 dREQ; 1590 dREQ;
1491 1591
1492 req->type = REQ_NOP; 1592 req->type = ix;
1493 1593
1494 REQ_SEND; 1594 REQ_SEND;
1495} 1595}
1496 1596
1497int 1597int
1498aioreq_pri (int pri = 0) 1598aioreq_pri (int pri = 0)
1499 PROTOTYPE: ;$
1500 CODE: 1599 CODE:
1501 RETVAL = next_pri - PRI_BIAS; 1600 RETVAL = next_pri;
1502 if (items > 0) 1601 if (items > 0)
1503 { 1602 {
1504 if (pri < PRI_MIN) pri = PRI_MIN; 1603 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1505 if (pri > PRI_MAX) pri = PRI_MAX; 1604 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1506 next_pri = pri + PRI_BIAS; 1605 next_pri = pri;
1507 } 1606 }
1508 OUTPUT: 1607 OUTPUT:
1509 RETVAL 1608 RETVAL
1510 1609
1511void 1610void
1512aioreq_nice (int nice = 0) 1611aioreq_nice (int nice = 0)
1513 CODE: 1612 CODE:
1514 nice = next_pri - nice; 1613 nice = next_pri - nice;
1515 if (nice < PRI_MIN) nice = PRI_MIN; 1614 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1516 if (nice > PRI_MAX) nice = PRI_MAX; 1615 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1517 next_pri = nice + PRI_BIAS; 1616 next_pri = nice;
1518 1617
1519void 1618void
1520flush () 1619flush ()
1620 CODE:
1621 while (eio_nreqs ())
1622 {
1623 poll_wait ();
1624 poll_cb ();
1625 }
1626
1627int
1628poll ()
1629 CODE:
1630 poll_wait ();
1631 RETVAL = poll_cb ();
1632 OUTPUT:
1633 RETVAL
1634
1635int
1636poll_fileno ()
1637 CODE:
1638 RETVAL = s_epipe_fd (&respipe);
1639 OUTPUT:
1640 RETVAL
1641
1642int
1643poll_cb (...)
1521 PROTOTYPE: 1644 PROTOTYPE:
1522 CODE: 1645 CODE:
1523 while (nreqs)
1524 {
1525 poll_wait ();
1526 poll_cb (0); 1646 RETVAL = poll_cb ();
1527 }
1528
1529void
1530poll()
1531 PROTOTYPE:
1532 CODE:
1533 if (nreqs)
1534 {
1535 poll_wait ();
1536 poll_cb (0);
1537 }
1538
1539int
1540poll_fileno()
1541 PROTOTYPE:
1542 CODE:
1543 RETVAL = respipe [0];
1544 OUTPUT: 1647 OUTPUT:
1545 RETVAL 1648 RETVAL
1546 1649
1650void
1651poll_wait ()
1652 CODE:
1653 poll_wait ();
1654
1547int 1655int
1548poll_cb(...) 1656nreqs ()
1549 PROTOTYPE:
1550 CODE: 1657 CODE:
1551 RETVAL = poll_cb (0); 1658 RETVAL = eio_nreqs ();
1552 OUTPUT: 1659 OUTPUT:
1553 RETVAL 1660 RETVAL
1554 1661
1555int 1662int
1556poll_some(int max = 0) 1663nready ()
1557 PROTOTYPE: $
1558 CODE: 1664 CODE:
1559 RETVAL = poll_cb (max); 1665 RETVAL = eio_nready ();
1560 OUTPUT: 1666 OUTPUT:
1561 RETVAL 1667 RETVAL
1562 1668
1563void 1669int
1564poll_wait() 1670npending ()
1565 PROTOTYPE:
1566 CODE: 1671 CODE:
1567 if (nreqs) 1672 RETVAL = eio_npending ();
1568 poll_wait ();
1569
1570int
1571nreqs()
1572 PROTOTYPE:
1573 CODE:
1574 RETVAL = nreqs;
1575 OUTPUT: 1673 OUTPUT:
1576 RETVAL 1674 RETVAL
1577 1675
1578int 1676int
1579nready() 1677nthreads ()
1580 PROTOTYPE:
1581 CODE: 1678 CODE:
1582 RETVAL = get_nready (); 1679 RETVAL = eio_nthreads ();
1583 OUTPUT: 1680 OUTPUT:
1584 RETVAL 1681 RETVAL
1585 1682
1586int 1683int
1587npending() 1684fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1588 PROTOTYPE: 1685 CODE:
1686 RETVAL = posix_fadvise (fh, offset, length, advice);
1687 OUTPUT:
1688 RETVAL
1689
1690IV
1691sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1692 CODE:
1693 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1694 OUTPUT:
1695 RETVAL
1696
1697void
1698mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1699 PPCODE:
1700 sv_unmagic (scalar, MMAP_MAGIC);
1701{
1702 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1703 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1704 if (addr == (void *)-1)
1705 XSRETURN_NO;
1706
1707 sv_force_normal (scalar);
1708
1709 /* we store the length in mg_obj, as namlen is I32 :/ */
1710 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1711 ->mg_obj = (SV *)length;
1712
1713 SvUPGRADE (scalar, SVt_PV); /* nop... */
1714
1715 if (!(prot & PROT_WRITE))
1716 SvREADONLY_on (scalar);
1717
1718 if (SvLEN (scalar))
1719 Safefree (SvPVX (scalar));
1720
1721 SvPVX (scalar) = (char *)addr;
1722 SvCUR_set (scalar, length);
1723 SvLEN_set (scalar, 0);
1724 SvPOK_only (scalar);
1725
1726 XSRETURN_YES;
1727}
1728
1729void
1730munmap (SV *scalar)
1589 CODE: 1731 CODE:
1590 RETVAL = get_npending (); 1732 sv_unmagic (scalar, MMAP_MAGIC);
1733
1734int
1735madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1736 ALIAS:
1737 mprotect = 1
1738 CODE:
1739{
1740 STRLEN svlen;
1741 void *addr = SvPVbyte (scalar, svlen);
1742 size_t len = SvUV (length);
1743
1744 if (offset < 0)
1745 offset += svlen;
1746
1747 if (offset < 0 || offset > svlen)
1748 croak ("offset outside of scalar");
1749
1750 if (!SvOK (length) || len + offset > svlen)
1751 len = svlen - offset;
1752
1753 addr = (void *)(((intptr_t)addr) + offset);
1754 eio_page_align (&addr, &len);
1755
1756 switch (ix)
1757 {
1758 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1759 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1760 }
1761}
1591 OUTPUT: 1762 OUTPUT:
1592 RETVAL 1763 RETVAL
1764
1765int
1766munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1767 CODE:
1768{
1769 STRLEN svlen;
1770 void *addr = SvPVbyte (scalar, svlen);
1771 size_t len = SvUV (length);
1772
1773 if (offset < 0)
1774 offset += svlen;
1775
1776 if (offset < 0 || offset > svlen)
1777 croak ("offset outside of scalar");
1778
1779 if (!SvOK (length) || len + offset > svlen)
1780 len = svlen - offset;
1781
1782 addr = (void *)(((intptr_t)addr) + offset);
1783 eio_page_align (&addr, &len);
1784#if _POSIX_MEMLOCK_RANGE
1785 RETVAL = munlock (addr, len);
1786#else
1787 RETVAL = EIO_ENOSYS ();
1788#endif
1789}
1790 OUTPUT:
1791 RETVAL
1792
1793int
1794munlockall ()
1795 CODE:
1796#if _POSIX_MEMLOCK
1797 munlockall ();
1798#else
1799 RETVAL = EIO_ENOSYS ();
1800#endif
1801 OUTPUT:
1802 RETVAL
1803
1804int
1805splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1806 CODE:
1807{
1808#if HAVE_LINUX_SPLICE
1809 loff_t off_in_, off_out_;
1810 RETVAL = splice (
1811 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1812 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1813 length, flags
1814 );
1815#else
1816 RETVAL = EIO_ENOSYS ();
1817#endif
1818}
1819 OUTPUT:
1820 RETVAL
1821
1822int
1823tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1824 CODE:
1825#if HAVE_LINUX_SPLICE
1826 RETVAL = tee (rfh, wfh, length, flags);
1827#else
1828 RETVAL = EIO_ENOSYS ();
1829#endif
1830 OUTPUT:
1831 RETVAL
1832
1833void _on_next_submit (SV *cb)
1834 CODE:
1835 SvREFCNT_dec (on_next_submit);
1836 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1593 1837
1594PROTOTYPES: DISABLE 1838PROTOTYPES: DISABLE
1839
1840MODULE = IO::AIO PACKAGE = IO::AIO::WD
1841
1842BOOT:
1843{
1844 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1845 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1846}
1847
1848void
1849DESTROY (SV *self)
1850 CODE:
1851{
1852 aio_wd wd = SvAIO_WD (self);
1853#if HAVE_AT
1854 {
1855 SV *callback = &PL_sv_undef;
1856 dREQ; /* clobbers next_pri :/ */
1857 next_pri = req->pri; /* restore next_pri */
1858 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1859 req->type = EIO_WD_CLOSE;
1860 req->wd = wd;
1861 REQ_SEND;
1862 }
1863#else
1864 eio_wd_close_sync (wd);
1865#endif
1866}
1595 1867
1596MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1868MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1597 1869
1598void 1870void
1599cancel (aio_req_ornot req) 1871cancel (aio_req_ornot req)
1600 CODE: 1872 CODE:
1601 req_cancel (req); 1873 eio_cancel (req);
1602 1874
1603void 1875void
1604cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1876cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1605 CODE: 1877 PPCODE:
1878{
1879 if (GIMME_V != G_VOID)
1880 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1881
1882 if (items > 1)
1883 {
1884 SV *cb_cv =get_cb (callback);
1885
1606 SvREFCNT_dec (req->callback); 1886 SvREFCNT_dec (req->callback);
1607 req->callback = newSVsv (callback); 1887 req->callback = SvREFCNT_inc (cb_cv);
1888 }
1889}
1608 1890
1609MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1610 1892
1611void 1893void
1612add (aio_req grp, ...) 1894add (aio_req grp, ...)
1613 PPCODE: 1895 PPCODE:
1614{ 1896{
1615 int i; 1897 int i;
1616 aio_req req;
1617 1898
1618 if (grp->fd == 2) 1899 if (grp->int1 == 2)
1619 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1900 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1620 1901
1621 for (i = 1; i < items; ++i ) 1902 for (i = 1; i < items; ++i )
1622 { 1903 {
1904 aio_req req;
1905
1623 if (GIMME_V != G_VOID) 1906 if (GIMME_V != G_VOID)
1624 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1907 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1625 1908
1626 req = SvAIO_REQ (ST (i)); 1909 req = SvAIO_REQ (ST (i));
1627 1910
1628 if (req) 1911 if (req)
1629 { 1912 eio_grp_add (grp, req);
1630 ++grp->length;
1631 req->grp = grp;
1632
1633 req->grp_prev = 0;
1634 req->grp_next = grp->grp_first;
1635
1636 if (grp->grp_first)
1637 grp->grp_first->grp_prev = req;
1638
1639 grp->grp_first = req;
1640 }
1641 } 1913 }
1642} 1914}
1643 1915
1644void 1916void
1645cancel_subs (aio_req_ornot req) 1917cancel_subs (aio_req_ornot req)
… …
1654 AV *av; 1926 AV *av;
1655 1927
1656 grp->errorno = errno; 1928 grp->errorno = errno;
1657 1929
1658 av = newAV (); 1930 av = newAV ();
1931 av_extend (av, items - 1);
1659 1932
1660 for (i = 1; i < items; ++i ) 1933 for (i = 1; i < items; ++i )
1661 av_push (av, newSVsv (ST (i))); 1934 av_push (av, newSVsv (ST (i)));
1662 1935
1663 SvREFCNT_dec (grp->data); 1936 SvREFCNT_dec (grp->sv1);
1664 grp->data = (SV *)av; 1937 grp->sv1 = (SV *)av;
1665} 1938}
1666 1939
1667void 1940void
1668errno (aio_req grp, int errorno = errno) 1941errno (aio_req grp, int errorno = errno)
1669 CODE: 1942 CODE:
1670 grp->errorno = errorno; 1943 grp->errorno = errorno;
1671 1944
1672void 1945void
1673limit (aio_req grp, int limit) 1946limit (aio_req grp, int limit)
1674 CODE: 1947 CODE:
1675 grp->fd2 = limit; 1948 eio_grp_limit (grp, limit);
1676 aio_grp_feed (grp);
1677 1949
1678void 1950void
1679feed (aio_req grp, SV *callback=&PL_sv_undef) 1951feed (aio_req grp, SV *callback=&PL_sv_undef)
1680 CODE: 1952 CODE:
1681{ 1953{
1682 SvREFCNT_dec (grp->fh2); 1954 SvREFCNT_dec (grp->sv2);
1683 grp->fh2 = newSVsv (callback); 1955 grp->sv2 = newSVsv (callback);
1956 grp->feed = aio_grp_feed;
1684 1957
1685 if (grp->fd2 <= 0) 1958 if (grp->int2 <= 0)
1686 grp->fd2 = 2; 1959 grp->int2 = 2;
1687 1960
1688 aio_grp_feed (grp); 1961 eio_grp_limit (grp, grp->int2);
1689} 1962}
1690 1963

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