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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/fiemap.h>
28# define HAVE_FIEMAP 1
29# endif
30#endif
31
32/* perl namespace pollution */
33#undef VERSION
34
35/* perl stupidly overrides readdir and maybe others */
36/* with thread-unsafe versions, imagine that :( */
37#undef readdir
38#undef opendir
39#undef closedir
40
18#ifdef _WIN32 41#ifdef _WIN32
19 42
20# define SIGIO 0 43 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 44
22#undef malloc 45 #undef malloc
23#undef free 46 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 47 #undef open
27# undef read 48 #undef read
28# undef write 49 #undef write
50 #undef send
51 #undef recv
29# undef stat 52 #undef stat
53 #undef lstat
30# undef fstat 54 #undef fstat
31# define lstat stat
32# undef truncate 55 #undef truncate
33# undef ftruncate 56 #undef ftruncate
34# undef open 57 #undef open
58 #undef link
35# undef close 59 #undef close
36# undef unlink 60 #undef unlink
61 #undef mkdir
37# undef rmdir 62 #undef rmdir
38# undef rename 63 #undef rename
39# undef lseek 64 #undef lseek
65 #undef opendir
66 #undef readdir
67 #undef closedir
68 #undef chmod
69 #undef fchmod
70 #undef dup
71 #undef dup2
72 #undef abort
73 #undef pipe
40 74
41# define chown(a,b,c) (errno = ENOSYS, -1) 75 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 77
55#else 78#else
56 79
57# include "autoconf/config.h"
58# include <sys/time.h> 80 #include <sys/time.h>
59# include <sys/select.h> 81 #include <sys/select.h>
60# include <unistd.h> 82 #include <unistd.h>
61# include <utime.h> 83 #include <utime.h>
62# include <signal.h> 84 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 85
65#endif 86 #define EIO_STRUCT_STAT Stat_t
66 87
67#if HAVE_SENDFILE 88#endif
68# if __linux 89
69# include <sys/sendfile.h> 90/*****************************************************************************/
70# elif __freebsd 91
71# include <sys/socket.h> 92#if __GNUC__ >= 3
72# include <sys/uio.h> 93# define expect(expr,value) __builtin_expect ((expr),(value))
73# elif __hpux 94#else
74# include <sys/socket.h> 95# define expect(expr,value) (expr)
75# elif __solaris /* not yet */ 96#endif
76# include <sys/sendfile.h> 97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128#if !HAVE_POSIX_FADVISE
129# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
130#endif
131
132#if !HAVE_POSIX_MADVISE
133# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
134#endif
135
136#ifndef MAP_ANONYMOUS
137# ifdef MAP_ANON
138# define MAP_ANONYMOUS MAP_ANON
77# else 139# else
78# error sendfile support requested but not available 140# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 141# endif
80#endif 142#endif
81 143
82/* number of seconds after which idle threads exit */ 144/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 145#include "def0.h"
84 146
85/* used for struct dirent, AIX doesn't provide it */ 147#ifndef makedev
86#ifndef NAME_MAX 148# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#endif 149#endif
150#ifndef major
151# define major(dev) ((dev) >> 8)
152#endif
153#ifndef minor
154# define minor(dev) ((dev) & 0xff)
155#endif
89 156
90/* buffer size for various temporary buffers */ 157#ifndef PAGESIZE
91#define AIO_BUFSIZE 65536 158# define PAGESIZE sysconf (_SC_PAGESIZE)
159#endif
92 160
93/* use NV for 32 bit perls as it allows larger offsets */ 161/*****************************************************************************/
94#if IVSIZE >= 8 162
95# define SvVAL64 SvIV 163static void
164fiemap (eio_req *req)
165{
166 req->result = -1;
167
168#if HAVE_FIEMAP
169 int count = req->int3;
170
171 /* heuristic: first try with 64 extents if we don't know how many, */
172 /* as most files have (hopefully) fewer than this many extents */
173 /* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
174 if (count < 0)
175 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
176
177 for (;;)
178 {
179 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
180 errno = ENOMEM;
181 if (!fiemap)
182 return;
183
184 req->ptr1 = fiemap;
185 req->flags |= EIO_FLAG_PTR1_FREE;
186
187 fiemap->fm_start = req->offs;
188 fiemap->fm_length = req->size;
189 fiemap->fm_flags = req->int2;
190 fiemap->fm_extent_count = count;
191
192 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
193 return;
194
195 if (req->int3 >= 0)
196 break; /* when not autosizing we are done */
197
198 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
199 break; /* autosizing successful, we are done */
200
201 fiemap->fm_flags = req->int2;
202 fiemap->fm_extent_count = 0;
203
204 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
205 return;
206
207 count = fiemap->fm_mapped_extents;
208
209 free (fiemap);
210 }
211
212 req->result = 0;
213
96#else 214#else
97# define SvVAL64 SvNV 215 errno = ENOSYS;
98#endif 216#endif
217}
99 218
100#define dBUF \ 219/*****************************************************************************/
101 char *aio_buf; \
102 X_LOCK (wrklock); \
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
104 X_UNLOCK (wrklock); \
105 if (!aio_buf) \
106 return -1;
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109 220
110enum { 221enum {
111 REQ_QUIT, 222 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 223};
127 224
128#define AIO_REQ_KLASS "IO::AIO::REQ"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130
131typedef struct aio_cb
132{
133 struct aio_cb *volatile next;
134
135 SV *callback;
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142
143 STRLEN stroffset;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148
149 unsigned char flags;
150 unsigned char pri;
151
152 SV *self; /* the perl counterpart of this request, if any */
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
154} aio_cb;
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req; 225typedef eio_req *aio_req;
163typedef aio_cb *aio_req_ornot; 226typedef eio_req *aio_req_ornot;
227typedef eio_wd aio_wd;
164 228
165enum { 229static SV *on_next_submit;
166 PRI_MIN = -4, 230static int next_pri = EIO_PRI_DEFAULT;
167 PRI_MAX = 4, 231static int max_outstanding;
168 232
169 DEFAULT_PRI = 0, 233static s_epipe respipe;
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173 234
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return;
196
197 if (!main_sig)
198 return;
199
200 sigemptyset (&ss);
201 sigaddset (&ss, main_sig);
202 pthread_sigmask (SIG_BLOCK, &ss, 0);
203}
204
205void unblock_sig ()
206{
207 sigset_t ss;
208
209 if (--block_sig_level)
210 return;
211
212 if (!main_sig)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 {
245 closedir (wrk->dirp);
246 wrk->dirp = 0;
247 }
248
249 if (wrk->dbuf)
250 {
251 free (wrk->dbuf);
252 wrk->dbuf = 0;
253 }
254}
255
256static void worker_free (worker *wrk)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0;
351
352 --q->size;
353
354 for (pri = NUM_PRI; pri--; )
355 {
356 aio_req req = q->qs[pri];
357
358 if (req)
359 {
360 if (!(q->qs[pri] = req->next))
361 q->qe[pri] = 0;
362
363 return req;
364 }
365 }
366
367 abort ();
368}
369
370static int poll_cb ();
371static int req_invoke (aio_req req);
372static void req_destroy (aio_req req); 235static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 236static void req_cancel (aio_req req);
374 237
238static void
239want_poll (void)
240{
241 /* write a dummy byte to the pipe so fh becomes ready */
242 s_epipe_signal (&respipe);
243}
244
245static void
246done_poll (void)
247{
248 /* read any signals sent by the worker threads */
249 s_epipe_drain (&respipe);
250}
251
375/* must be called at most once */ 252/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 253static SV *
254req_sv (aio_req req, HV *stash)
377{ 255{
378 if (!req->self) 256 if (!req->self)
379 { 257 {
380 req->self = (SV *)newHV (); 258 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 260 }
383 261
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 262 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 263}
386 264
387static aio_req SvAIO_REQ (SV *sv) 265static SV *
266newSVaio_wd (aio_wd wd)
267{
268 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
269}
270
271static aio_req
272SvAIO_REQ (SV *sv)
388{ 273{
389 MAGIC *mg; 274 MAGIC *mg;
390 275
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 276 if (!SvROK (sv)
277 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
278 || (SvSTASH (SvRV (sv)) != aio_grp_stash
279 && SvSTASH (SvRV (sv)) != aio_req_stash
280 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 281 croak ("object of class IO::AIO::REQ expected");
393 282
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 283 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 284
396 return mg ? (aio_req)mg->mg_ptr : 0; 285 return mg ? (aio_req)mg->mg_ptr : 0;
397} 286}
398 287
288static aio_wd
289SvAIO_WD (SV *sv)
290{
291 if (!SvROK (sv)
292 || SvTYPE (SvRV (sv)) != SVt_PVMG
293 || SvSTASH (SvRV (sv)) != aio_wd_stash)
294 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
295
296 return (aio_wd)(long)SvIVX (SvRV (sv));
297}
298
299static void
399static void aio_grp_feed (aio_req grp) 300aio_grp_feed (aio_req grp)
400{ 301{
401 block_sig (); 302 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 303 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 304 dSP;
410 305
411 ENTER; 306 ENTER;
412 SAVETMPS; 307 SAVETMPS;
413 PUSHMARK (SP); 308 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 309 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 310 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 311 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 312 SPAGAIN;
418 FREETMPS; 313 FREETMPS;
419 LEAVE; 314 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 315 }
430
431 unblock_sig ();
432} 316}
433 317
434static void aio_grp_dec (aio_req grp) 318static void
319req_submit (eio_req *req)
435{ 320{
436 --grp->size; 321 eio_submit (req);
437 322
438 /* call feeder, if applicable */ 323 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 324 {
444 block_sig (); 325 dSP;
326 SV *cb = sv_2mortal (on_next_submit);
445 327
446 if (!req_invoke (grp)) 328 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 329
453 req_destroy (grp); 330 PUSHMARK (SP);
454 unblock_sig (); 331 PUTBACK;
332 call_sv (cb, G_DISCARD | G_EVAL);
455 } 333 }
456} 334}
457 335
336static int
458static int req_invoke (aio_req req) 337req_invoke (eio_req *req)
459{ 338{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
464 341
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 342 if (!EIO_CANCELLED (req) && req->callback)
466 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
467 ENTER; 348 ENTER;
468 SAVETMPS; 349 SAVETMPS;
469 PUSHMARK (SP); 350 PUSHMARK (SP);
470 EXTEND (SP, 1); 351 EXTEND (SP, 1);
471 352
353 /* do not recreate the result IV from scratch each time */
354 if (expect_true (sv_result_cache))
355 {
356 sv_result = sv_result_cache; sv_result_cache = 0;
357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
365
472 switch (req->type) 366 switch (req->type)
473 { 367 {
368 case EIO_WD_OPEN:
369 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
370 break;
371
474 case REQ_READDIR: 372 case EIO_READDIR:
475 { 373 {
476 SV *rv = &PL_sv_undef; 374 SV *rv = &PL_sv_undef;
477 375
478 if (req->result >= 0) 376 if (req->result >= 0)
479 { 377 {
480 int i; 378 int i;
481 char *buf = req->ptr2; 379 char *names = (char *)req->ptr2;
380 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 381 AV *av = newAV ();
483 382
484 av_extend (av, req->result - 1); 383 av_extend (av, req->result - 1);
485 384
486 for (i = 0; i < req->result; ++i) 385 for (i = 0; i < req->result; ++i)
487 { 386 {
488 SV *sv = newSVpv (buf, 0); 387 if (req->int1 & EIO_READDIR_DENTS)
388 {
389 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 390
391 if (req->int1 & EIO_READDIR_CUSTOM2)
392 {
393 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
394 AV *avent = newAV ();
395
396 av_extend (avent, 2);
397
398 if (!sv_type [ent->type])
399 {
400 sv_type [ent->type] = newSViv (ent->type);
401 SvREADONLY_on (sv_type [ent->type]);
402 }
403
404 av_store (avent, 0, namesv);
405 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
406 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
407
408 av_store (av, i, newRV_noinc ((SV *)avent));
409 }
410 else
490 av_store (av, i, sv); 411 av_store (av, i, namesv);
412
413 ++ent;
414 }
415 else
416 {
417 SV *name = newSVpv (names, 0);
418 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 419 names += SvCUR (name) + 1;
420 }
492 } 421 }
493 422
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 423 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 424 }
496 425
497 PUSHs (rv); 426 PUSHs (rv);
427
428 if (req->int1 & EIO_READDIR_CUSTOM1)
429 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 430 }
499 break; 431 break;
500 432
501 case REQ_OPEN: 433 case EIO_OPEN:
502 { 434 {
503 /* convert fd to fh */ 435 /* convert fd to fh */
504 SV *fh; 436 SV *fh = &PL_sv_undef;
505 437
506 PUSHs (sv_2mortal (newSViv (req->result))); 438 if (req->result >= 0)
507 PUTBACK; 439 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 440 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 441 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
442 char sym [64];
443 int symlen;
444
445 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
446 gv_init (gv, aio_stash, sym, symlen, 0);
510 447
511 fh = POPs; 448 symlen = snprintf (
512 PUSHMARK (SP); 449 sym,
450 sizeof (sym),
451 "%s&=%d",
452 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
453 (int)req->result
454 );
455
456 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
457 fh = (SV *)gv;
458 }
459
513 XPUSHs (fh); 460 PUSHs (fh);
514 } 461 }
515 break; 462 break;
516 463
464 case EIO_STATVFS:
465 case EIO_FSTATVFS:
466 {
467 SV *rv = &PL_sv_undef;
468
469#ifndef _WIN32
470 if (req->result >= 0)
471 {
472 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
473 HV *hv = newHV ();
474
475 rv = sv_2mortal (newRV_noinc ((SV *)hv));
476
477 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
478 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
479 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
480 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
481 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
482 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
483 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
484 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
485 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
486 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
487 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
488 }
489#endif
490
491 PUSHs (rv);
492 }
493
494 break;
495
517 case REQ_GROUP: 496 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 497 req->int1 = 2; /* mark group as finished */
519 498
520 if (req->sv1) 499 if (req->sv1)
521 { 500 {
522 int i; 501 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 505 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 506 PUSHs (*av_fetch (av, i, 0));
528 } 507 }
529 break; 508 break;
530 509
531 case REQ_NOP: 510 case EIO_NOP:
532 case REQ_BUSY: 511 case EIO_BUSY:
533 break; 512 break;
534 513
535 case REQ_READLINK: 514 case EIO_READLINK:
515 case EIO_REALPATH:
536 if (req->result > 0) 516 if (req->result > 0)
517 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
518 break;
519
520 case EIO_STAT:
521 case EIO_LSTAT:
522 case EIO_FSTAT:
523 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
524
525 if (!(PL_laststatval = req->result))
526 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
527 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
528
529 PUSHs (sv_result);
530 break;
531
532 case EIO_SEEK:
533 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
534 break;
535
536 case EIO_READ:
537 {
538 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
539 *SvEND (req->sv2) = 0;
540 SvPOK_only (req->sv2);
541 SvSETMAGIC (req->sv2);
542 PUSHs (sv_result);
543 }
544 break;
545
546 case EIO_CUSTOM:
547 if (req->feed == fiemap)
537 { 548 {
538 SvCUR_set (req->sv2, req->result); 549#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 550 if (!req->result)
551 {
552 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
553
554 if (fiemap->fm_extent_count)
555 {
556 AV *av = newAV ();
557 int i;
558
559 while (fiemap->fm_mapped_extents)
560 {
561 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
562 AV *ext_av = newAV ();
563
564 av_store (ext_av, 3, newSVuv (extent->fe_flags));
565 av_store (ext_av, 2, newSVval64 (extent->fe_length));
566 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
567 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
568
569 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
570 }
571
572 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
573 }
574 else
575 {
576 SvIV_set (sv_result, fiemap->fm_mapped_extents);
577 PUSHs (sv_result);
578 }
579 }
580#endif
541 } 581 }
582 else
583 PUSHs (sv_result);
542 break; 584 break;
543 585
544 case REQ_STAT: 586 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 587 if (req->result > 0)
546 case REQ_FSTAT: 588 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 589 /* FALLTHROUGH */
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break;
552
553 case REQ_READ:
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result)));
557 break;
558 590
559 default: 591 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 592 PUSHs (sv_result);
561 break; 593 break;
562 } 594 }
563 595
564 errno = req->errorno; 596 errno = req->errorno;
565 597
566 PUTBACK; 598 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 599 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 600 SPAGAIN;
601
602 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
603 SvREFCNT_dec (sv_result);
604 else
605 sv_result_cache = sv_result;
569 606
570 FREETMPS; 607 FREETMPS;
571 LEAVE; 608 LEAVE;
609
610 PUTBACK;
572 } 611 }
573 612
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 613 return !!SvTRUE (ERRSV);
589} 614}
590 615
616static void
591static void req_destroy (aio_req req) 617req_destroy (aio_req req)
592{ 618{
593 if (req->self) 619 if (req->self)
594 { 620 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 621 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 622 SvREFCNT_dec (req->self);
597 } 623 }
598 624
599 SvREFCNT_dec (req->sv1); 625 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 626 SvREFCNT_dec (req->sv2);
627 SvREFCNT_dec (req->sv3);
628 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 629 SvREFCNT_dec (req->callback);
602 630
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 631 free (req);
607} 632}
608 633
634static void
609static void req_cancel_subs (aio_req grp) 635req_cancel_subs (aio_req grp)
610{ 636{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 637 if (grp->type != EIO_GROUP)
614 return; 638 return;
615 639
616 SvREFCNT_dec (grp->sv2); 640 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 641 grp->sv2 = 0;
618 642
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 643 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 644}
622 645
623static void req_cancel (aio_req req) 646static void ecb_cold
647create_respipe (void)
624{ 648{
625 req->flags |= FLAG_CANCELLED; 649 if (s_epipe_renew (&respipe))
626 650 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 651}
629 652
630X_THREAD_PROC (aio_proc); 653static void
631 654poll_wait (void)
632static void start_thread (void)
633{ 655{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 656 while (eio_nreqs ())
730 { 657 {
731 int size; 658 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 659
660 X_LOCK (reslock);
733 size = res_queue.size; 661 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 662 X_UNLOCK (reslock);
735 663
736 if (size) 664 if (size)
737 return; 665 return;
738 666
739 maybe_start_thread (); 667 etp_maybe_start_thread ();
740 668
741 FD_ZERO(&rfd); 669 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 670 }
746} 671}
747 672
748static int poll_cb () 673static int
674poll_cb (void)
749{ 675{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 676 for (;;)
763 { 677 {
764 for (;;) 678 int res = eio_poll ();
679
680 if (res > 0)
681 croak (0);
682
683 if (!max_outstanding || max_outstanding > eio_nreqs ())
684 return res;
685
686 poll_wait ();
687 }
688}
689
690static void ecb_cold
691reinit (void)
692{
693 create_respipe ();
694
695 if (eio_init (want_poll, done_poll) < 0)
696 croak ("IO::AIO: unable to initialise eio library");
697}
698
699/*****************************************************************************/
700
701#if !_POSIX_MAPPED_FILES
702# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
703# define munmap(addr,length) (errno = ENOSYS, -1)
704#endif
705
706#if !_POSIX_MEMORY_PROTECTION
707# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
708# define PROT_NONE 0
709# define PROT_WRITE 0
710# define MAP_PRIVATE 0
711# define MAP_SHARED 0
712# define MAP_FIXED 0
713#endif
714
715#define MMAP_MAGIC PERL_MAGIC_ext
716
717static int ecb_cold
718mmap_free (pTHX_ SV *sv, MAGIC *mg)
719{
720 int old_errno = errno;
721 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
722 errno = old_errno;
723
724 mg->mg_obj = 0; /* just in case */
725
726 SvREADONLY_off (sv);
727
728 if (SvPVX (sv) != mg->mg_ptr)
729 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
730
731 SvCUR_set (sv, 0);
732 SvPVX (sv) = 0;
733 SvOK_off (sv);
734
735 return 0;
736}
737
738static MGVTBL mmap_vtbl = {
739 0, 0, 0, 0, mmap_free
740};
741
742/*****************************************************************************/
743
744static SV *
745get_cb (SV *cb_sv)
746{
747 SvGETMAGIC (cb_sv);
748 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
749}
750
751static aio_req ecb_noinline
752dreq (SV *callback)
753{
754 SV *cb_cv;
755 aio_req req;
756 int req_pri = next_pri;
757 next_pri = EIO_PRI_DEFAULT;
758
759 cb_cv = get_cb (callback);
760
761 req = calloc (sizeof (*req), 1);
762 if (!req)
763 croak ("out of memory during eio_req allocation");
764
765 req->callback = SvREFCNT_inc (cb_cv);
766 req->pri = req_pri;
767
768 return req;
769}
770
771#define dREQ \
772 aio_req req = dreq (callback); \
773
774#define REQ_SEND \
775 PUTBACK; \
776 req_submit (req); \
777 SPAGAIN; \
778 \
779 if (GIMME_V != G_VOID) \
780 XPUSHs (req_sv (req, aio_req_stash));
781
782ecb_inline void
783req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
784{
785 if (expect_false (SvROK (path)))
786 {
787 SV *rv = SvRV (path);
788 SV *wdob;
789
790 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 791 {
766 maybe_start_thread (); 792 path = AvARRAY (rv)[1];
793 wdob = AvARRAY (rv)[0];
767 794
768 X_LOCK (reslock); 795 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 796 {
773 --npending; 797 *wd = SvAIO_WD (wdob);
774 798 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 799 }
796 else 800 else
797 { 801 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 802 }
803 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
804 {
805 *wd = (aio_wd)(long)SvIVX (rv);
806 *wdsv = SvREFCNT_inc_NN (rv);
807 *ptr = ".";
808 return; /* path set to "." */
809 }
810 else
811 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
812 }
821 813
822 if (nreqs <= max_outstanding) 814 *pathsv = newSVsv (path);
815 *ptr = SvPVbyte_nolen (*pathsv);
816}
817
818static void ecb_noinline
819req_set_path1 (aio_req req, SV *path)
820{
821 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
822}
823
824static void ecb_noinline
825req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
826{
827 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
828
829 switch (SvTYPE (rv))
830 {
831 case SVt_PVIO:
832 case SVt_PVLV:
833 case SVt_PVGV:
834 req->type = type_fh;
835 req->sv1 = newSVsv (fh_or_path);
836 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 837 break;
824 838
825 poll_wait (); 839 default:
826 840 req->type = type_path;
827 ++maxreqs; 841 req_set_path1 (req, fh_or_path);
842 break;
828 } 843 }
829
830 unblock_sig ();
831 return count;
832} 844}
833 845
834/*****************************************************************************/ 846XS(boot_IO__AIO) ecb_cold;
835/* work around various missing functions */
836 847
837#if !HAVE_PREADWRITE
838# define pread aio_pread
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055}
1056
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO 848MODULE = IO::AIO PACKAGE = IO::AIO
1379 849
1380PROTOTYPES: ENABLE 850PROTOTYPES: ENABLE
1381 851
1382BOOT: 852BOOT:
1383{ 853{
854 static const struct {
855 const char *name;
856 IV iv;
857 } *civ, const_iv[] = {
858# define const_niv(name, value) { # name, (IV) value },
859# define const_iv(name) { # name, (IV) name },
860# define const_eio(name) { # name, (IV) EIO_ ## name },
861
862 /* you have to re-run ./gendef0 after adding/Removing any constants here */
863
864 const_iv (ENOSYS)
865 const_iv (EXDEV)
866 const_iv (EBADR)
867
868 const_iv (O_RDONLY)
869 const_iv (O_WRONLY)
870 const_iv (O_RDWR)
871 const_iv (O_CREAT)
872 const_iv (O_TRUNC)
873 const_iv (O_EXCL)
874 const_iv (O_APPEND)
875
876 const_iv (O_ASYNC)
877 const_iv (O_DIRECT)
878 const_iv (O_NOATIME)
879
880 const_iv (O_CLOEXEC)
881 const_iv (O_NOCTTY)
882 const_iv (O_NOFOLLOW)
883 const_iv (O_NONBLOCK)
884 const_iv (O_EXEC)
885 const_iv (O_SEARCH)
886 const_iv (O_DIRECTORY)
887 const_iv (O_DSYNC)
888 const_iv (O_RSYNC)
889 const_iv (O_SYNC)
890 const_iv (O_TTY_INIT)
891
892 const_iv (S_IFIFO)
893 const_iv (S_IFCHR)
894 const_iv (S_IFBLK)
895 const_iv (S_IFLNK)
896 const_iv (S_IFREG)
897 const_iv (S_IFDIR)
898 const_iv (S_IFWHT)
899 const_iv (S_IFSOCK)
900 const_iv (S_IFMT)
901
902 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
903 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
904 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
905 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
906 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
907 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
908
909 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
910 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
911 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
912 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
913 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
914
915 const_iv (ST_RDONLY)
916 const_iv (ST_NOSUID)
917 const_iv (ST_NODEV)
918 const_iv (ST_NOEXEC)
919 const_iv (ST_SYNCHRONOUS)
920 const_iv (ST_MANDLOCK)
921 const_iv (ST_WRITE)
922 const_iv (ST_APPEND)
923 const_iv (ST_IMMUTABLE)
924 const_iv (ST_NOATIME)
925 const_iv (ST_NODIRATIME)
926 const_iv (ST_RELATIME)
927
928 const_iv (PROT_NONE)
929 const_iv (PROT_EXEC)
930 const_iv (PROT_READ)
931 const_iv (PROT_WRITE)
932
933 /*const_iv (MAP_FIXED)*/
934 const_iv (MAP_PRIVATE)
935 const_iv (MAP_SHARED)
936 const_iv (MAP_ANONYMOUS)
937
938 /* linuxish */
939 const_iv (MAP_HUGETLB)
940 const_iv (MAP_LOCKED)
941 const_iv (MAP_NORESERVE)
942 const_iv (MAP_POPULATE)
943 const_iv (MAP_NONBLOCK)
944
945 const_iv (FIEMAP_FLAG_SYNC)
946 const_iv (FIEMAP_FLAG_XATTR)
947 const_iv (FIEMAP_FLAGS_COMPAT)
948 const_iv (FIEMAP_EXTENT_LAST)
949 const_iv (FIEMAP_EXTENT_UNKNOWN)
950 const_iv (FIEMAP_EXTENT_DELALLOC)
951 const_iv (FIEMAP_EXTENT_ENCODED)
952 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
953 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
954 const_iv (FIEMAP_EXTENT_DATA_INLINE)
955 const_iv (FIEMAP_EXTENT_DATA_TAIL)
956 const_iv (FIEMAP_EXTENT_UNWRITTEN)
957 const_iv (FIEMAP_EXTENT_MERGED)
958 const_iv (FIEMAP_EXTENT_SHARED)
959
960 const_eio (SEEK_SET)
961 const_eio (SEEK_CUR)
962 const_eio (SEEK_END)
963
964 const_eio (MCL_FUTURE)
965 const_eio (MCL_CURRENT)
966
967 const_eio (MS_ASYNC)
968 const_eio (MS_INVALIDATE)
969 const_eio (MS_SYNC)
970
971 const_eio (MT_MODIFY)
972
973 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
974 const_eio (SYNC_FILE_RANGE_WRITE)
975 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
976
977 const_eio (FALLOC_FL_KEEP_SIZE)
978
979 const_eio (READDIR_DENTS)
980 const_eio (READDIR_DIRS_FIRST)
981 const_eio (READDIR_STAT_ORDER)
982 const_eio (READDIR_FOUND_UNKNOWN)
983
984 const_eio (DT_UNKNOWN)
985 const_eio (DT_FIFO)
986 const_eio (DT_CHR)
987 const_eio (DT_DIR)
988 const_eio (DT_BLK)
989 const_eio (DT_REG)
990 const_eio (DT_LNK)
991 const_eio (DT_SOCK)
992 const_eio (DT_WHT)
993 };
994
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 995 aio_stash = gv_stashpv ("IO::AIO" , 1);
996 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
997 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
998 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 999
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1000 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1001 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 1002
1403 if (!create_pipe (respipe)) 1003 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1004
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1005 reinit ();
1407} 1006}
1408 1007
1409void 1008void
1009reinit ()
1010 PROTOTYPE:
1011
1012void
1410max_poll_reqs (int nreqs) 1013max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1014 PROTOTYPE: $
1412 CODE: 1015 CODE:
1413 max_poll_reqs = nreqs; 1016 eio_set_max_poll_reqs (nreqs);
1414 1017
1415void 1018void
1416max_poll_time (double nseconds) 1019max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1020 PROTOTYPE: $
1418 CODE: 1021 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1022 eio_set_max_poll_time (nseconds);
1420 1023
1421void 1024void
1422min_parallel (int nthreads) 1025min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1026 PROTOTYPE: $
1432 CODE: 1027 CODE:
1433 set_max_idle (nthreads); 1028 eio_set_min_parallel (nthreads);
1434 1029
1435int 1030void
1436max_outstanding (int maxreqs) 1031max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1032 PROTOTYPE: $
1438 CODE: 1033 CODE:
1439 RETVAL = max_outstanding; 1034 eio_set_max_parallel (nthreads);
1035
1036void
1037max_idle (unsigned int nthreads)
1038 PROTOTYPE: $
1039 CODE:
1040 eio_set_max_idle (nthreads);
1041
1042void
1043idle_timeout (unsigned int seconds)
1044 PROTOTYPE: $
1045 CODE:
1046 eio_set_idle_timeout (seconds);
1047
1048void
1049max_outstanding (unsigned int maxreqs)
1050 PROTOTYPE: $
1051 CODE:
1440 max_outstanding = maxreqs; 1052 max_outstanding = maxreqs;
1441 OUTPUT: 1053
1442 RETVAL 1054void
1055aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1056 PPCODE:
1057{
1058 dREQ;
1059
1060 req->type = EIO_WD_OPEN;
1061 req_set_path1 (req, pathname);
1062
1063 REQ_SEND;
1064}
1443 1065
1444void 1066void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1067aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1068 PPCODE:
1448{ 1069{
1449 dREQ; 1070 dREQ;
1450 1071
1451 req->type = REQ_OPEN; 1072 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1073 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1074 req->int1 = flags;
1455 req->mode = mode; 1075 req->int2 = mode;
1456 1076
1457 REQ_SEND; 1077 REQ_SEND;
1458} 1078}
1459 1079
1460void 1080void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1081aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1082 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1083 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1084 aio_fdatasync = EIO_FDATASYNC
1085 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1086 PPCODE:
1468{ 1087{
1088 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1089 dREQ;
1470 1090
1471 req->type = ix; 1091 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1092 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1093 req->int1 = fd;
1474 1094
1475 REQ_SEND (req); 1095 REQ_SEND;
1096}
1097
1098void
1099aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1100 PPCODE:
1101{
1102 int fd = s_fileno_croak (fh, 0);
1103 dREQ;
1104
1105 req->type = EIO_SYNC_FILE_RANGE;
1106 req->sv1 = newSVsv (fh);
1107 req->int1 = fd;
1108 req->offs = offset;
1109 req->size = nbytes;
1110 req->int2 = flags;
1111
1112 REQ_SEND;
1113}
1114
1115void
1116aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1117 PPCODE:
1118{
1119 int fd = s_fileno_croak (fh, 0);
1120 dREQ;
1121
1122 req->type = EIO_FALLOCATE;
1123 req->sv1 = newSVsv (fh);
1124 req->int1 = fd;
1125 req->int2 = mode;
1126 req->offs = offset;
1127 req->size = len;
1128
1129 REQ_SEND;
1130}
1131
1132void
1133aio_close (SV *fh, SV *callback=&PL_sv_undef)
1134 PPCODE:
1135{
1136 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1137 int fd = s_fileno_croak (fh, 0);
1138 dREQ;
1139
1140 if (expect_false (close_fd < 0))
1141 {
1142 int pipefd [2];
1143
1144 if (
1145#ifdef _WIN32
1146 _pipe (pipefd, 1, _O_BINARY) < 0
1147#else
1148 pipe (pipefd) < 0
1149 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1150#endif
1151 || close (pipefd [1]) < 0
1152 )
1153 abort (); /*D*/
1154
1155 close_fd = pipefd [0];
1156 }
1157
1158 req->type = EIO_DUP2;
1159 req->int1 = close_fd;
1160 req->sv2 = newSVsv (fh);
1161 req->int2 = fd;
1162
1163 REQ_SEND;
1164}
1165
1166void
1167aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1168 PPCODE:
1169{
1170 int fd = s_fileno_croak (fh, 0);
1171 dREQ;
1172
1173 req->type = EIO_SEEK;
1174 req->sv1 = newSVsv (fh);
1175 req->int1 = fd;
1176 req->offs = SvVAL64 (offset);
1177 req->int2 = whence;
1178
1179 REQ_SEND;
1476} 1180}
1477 1181
1478void 1182void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1183aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1184 ALIAS:
1481 aio_read = REQ_READ 1185 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1186 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1187 PPCODE:
1485{ 1188{
1486 STRLEN svlen; 1189 STRLEN svlen;
1190 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1191 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1192 UV len = SvUV (length);
1489 1193
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1194 if (dataoffset < 0)
1494 dataoffset += svlen; 1195 dataoffset += svlen;
1495 1196
1496 if (dataoffset < 0 || dataoffset > svlen) 1197 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1198 croak ("dataoffset outside of data scalar");
1498 1199
1499 if (ix == REQ_WRITE) 1200 if (ix == EIO_WRITE)
1500 { 1201 {
1501 /* write: check length and adjust. */ 1202 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1203 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1204 len = svlen - dataoffset;
1504 } 1205 }
1505 else 1206 else
1506 { 1207 {
1507 /* read: grow scalar as necessary */ 1208 /* read: check type and grow scalar as necessary */
1209 SvUPGRADE (data, SVt_PV);
1508 svptr = SvGROW (data, len + dataoffset + 1); 1210 svptr = SvGROW (data, len + dataoffset + 1);
1509 } 1211 }
1510 1212
1511 if (len < 0)
1512 croak ("length must not be negative");
1513
1514 { 1213 {
1515 dREQ; 1214 dREQ;
1516 1215
1517 req->type = ix; 1216 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1217 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1218 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1219 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1220 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1221 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1222 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1223 req->stroffset = dataoffset;
1526 1224
1527 if (!SvREADONLY (data)) 1225 if (!SvREADONLY (data))
1528 { 1226 {
1529 SvREADONLY_on (data); 1227 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1231 REQ_SEND;
1534 } 1232 }
1535} 1233}
1536 1234
1537void 1235void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1236aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1237 ALIAS:
1238 aio_readlink = EIO_READLINK
1239 aio_realpath = EIO_REALPATH
1540 PPCODE: 1240 PPCODE:
1541{ 1241{
1542 SV *data;
1543 dREQ; 1242 dREQ;
1544 1243
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1244 req->type = ix;
1549 req->sv1 = newSVsv (path); 1245 req_set_path1 (req, pathname);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1246
1554 REQ_SEND; 1247 REQ_SEND;
1555} 1248}
1556 1249
1557void 1250void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1251aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1252 PPCODE:
1561{ 1253{
1254 int ifd = s_fileno_croak (in_fh , 0);
1255 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1256 dREQ;
1563 1257
1564 req->type = REQ_SENDFILE; 1258 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1259 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1260 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1261 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1262 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1263 req->offs = in_offset;
1570 req->size = length; 1264 req->size = length;
1571 1265
1572 REQ_SEND; 1266 REQ_SEND;
1573} 1267}
1574 1268
1575void 1269void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1270aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1271 PPCODE:
1579{ 1272{
1273 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1274 dREQ;
1581 1275
1582 req->type = REQ_READAHEAD; 1276 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1277 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1278 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1279 req->offs = offset;
1586 req->size = length; 1280 req->size = length;
1587 1281
1588 REQ_SEND; 1282 REQ_SEND;
1589} 1283}
1590 1284
1591void 1285void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1286aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1287 ALIAS:
1594 aio_stat = REQ_STAT 1288 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1289 aio_lstat = EIO_LSTAT
1290 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1291 PPCODE:
1597{ 1292{
1598 dREQ; 1293 dREQ;
1599 1294
1600 req->ptr2 = malloc (sizeof (Stat_t)); 1295 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1601 if (!req->ptr2)
1602 {
1603 req_destroy (req);
1604 croak ("out of memory during aio_stat statdata allocation");
1605 }
1606
1607 req->flags |= FLAG_PTR2_FREE;
1608 req->sv1 = newSVsv (fh_or_path);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 }
1615 else
1616 {
1617 req->type = REQ_FSTAT;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1619 }
1620 1296
1621 REQ_SEND; 1297 REQ_SEND;
1622} 1298}
1299
1300UV
1301major (UV dev)
1302 ALIAS:
1303 minor = 1
1304 CODE:
1305 RETVAL = ix ? major (dev) : minor (dev);
1306 OUTPUT:
1307 RETVAL
1308
1309UV
1310makedev (UV maj, UV min)
1311 CODE:
1312 RETVAL = makedev (maj, min);
1313 OUTPUT:
1314 RETVAL
1623 1315
1624void 1316void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1317aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1318 PPCODE:
1627{ 1319{
1628 dREQ; 1320 dREQ;
1629 1321
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1322 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1323 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1324 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1325
1645 REQ_SEND; 1326 REQ_SEND;
1646} 1327}
1647 1328
1648void 1329void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1330aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1650 PPCODE: 1331 PPCODE:
1651{ 1332{
1652 dREQ; 1333 dREQ;
1653 1334
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1335 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1336 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1337
1668 REQ_SEND; 1338 REQ_SEND;
1669} 1339}
1670 1340
1671void 1341void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1342aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1673 PPCODE: 1343 PPCODE:
1674{ 1344{
1675 dREQ; 1345 dREQ;
1676 1346
1677 req->mode = mode; 1347 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1348 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1349
1691 REQ_SEND; 1350 REQ_SEND;
1692} 1351}
1693 1352
1694void 1353void
… …
1697{ 1356{
1698 dREQ; 1357 dREQ;
1699 1358
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1359 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1360 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1361 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703 1362
1704 if (SvPOK (fh_or_path)) 1363 REQ_SEND;
1705 { 1364}
1706 req->type = REQ_CHOWN; 1365
1707 req->ptr1 = SvPVbyte_nolen (req->sv1); 1366void
1708 } 1367aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1709 else 1368 PPCODE:
1710 { 1369{
1711 req->type = REQ_FCHOWN; 1370 dREQ;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1371
1713 } 1372 req->type = EIO_READDIR;
1373 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1374
1375 if (flags & EIO_READDIR_DENTS)
1376 req->int1 |= EIO_READDIR_CUSTOM2;
1377
1378 req_set_path1 (req, pathname);
1379
1380 REQ_SEND;
1381}
1382
1383void
1384aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1385 PPCODE:
1386{
1387 dREQ;
1388
1389 req->type = EIO_MKDIR;
1390 req->int2 = mode;
1391 req_set_path1 (req, pathname);
1714 1392
1715 REQ_SEND; 1393 REQ_SEND;
1716} 1394}
1717 1395
1718void 1396void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1397aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1398 ALIAS:
1721 aio_unlink = REQ_UNLINK 1399 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1400 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1401 aio_readdir = EIO_READDIR
1724 PPCODE: 1402 PPCODE:
1725{ 1403{
1726 dREQ; 1404 dREQ;
1727 1405
1728 req->type = ix; 1406 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1407 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745 1408
1746 REQ_SEND; 1409 REQ_SEND;
1747} 1410}
1748 1411
1749void 1412void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1413aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS: 1414 ALIAS:
1752 aio_link = REQ_LINK 1415 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1416 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1417 aio_rename = EIO_RENAME
1755 PPCODE: 1418 PPCODE:
1756{ 1419{
1420 eio_wd wd2 = 0;
1757 dREQ; 1421 dREQ;
1758 1422
1759 req->type = ix; 1423 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1424 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1425 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1426 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1427
1765 REQ_SEND; 1428 REQ_SEND;
1766} 1429}
1767 1430
1768void 1431void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1432aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1770 PPCODE: 1433 PPCODE:
1771{ 1434{
1772 dREQ; 1435 dREQ;
1773 1436
1774 req->type = REQ_MKNOD; 1437 req->type = EIO_MKNOD;
1775 req->sv1 = newSVsv (pathname);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1);
1777 req->mode = (mode_t)mode; 1438 req->int2 = (mode_t)mode;
1778 req->offs = dev; 1439 req->offs = dev;
1440 req_set_path1 (req, pathname);
1779 1441
1780 REQ_SEND; 1442 REQ_SEND;
1781} 1443}
1782 1444
1783void 1445void
1446aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1447 ALIAS:
1448 aio_mtouch = EIO_MTOUCH
1449 aio_msync = EIO_MSYNC
1450 PPCODE:
1451{
1452 STRLEN svlen;
1453 char *svptr = SvPVbyte (data, svlen);
1454 UV len = SvUV (length);
1455
1456 if (offset < 0)
1457 offset += svlen;
1458
1459 if (offset < 0 || offset > svlen)
1460 croak ("offset outside of scalar");
1461
1462 if (!SvOK (length) || len + offset > svlen)
1463 len = svlen - offset;
1464
1465 {
1466 dREQ;
1467
1468 req->type = ix;
1469 req->sv2 = SvREFCNT_inc (data);
1470 req->ptr2 = (char *)svptr + offset;
1471 req->size = len;
1472 req->int1 = flags;
1473
1474 REQ_SEND;
1475 }
1476}
1477
1478void
1479aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1480 PPCODE:
1481{
1482 STRLEN svlen;
1483 char *svptr = SvPVbyte (data, svlen);
1484 UV len = SvUV (length);
1485
1486 if (offset < 0)
1487 offset += svlen;
1488
1489 if (offset < 0 || offset > svlen)
1490 croak ("offset outside of scalar");
1491
1492 if (!SvOK (length) || len + offset > svlen)
1493 len = svlen - offset;
1494
1495 {
1496 dREQ;
1497
1498 req->type = EIO_MLOCK;
1499 req->sv2 = SvREFCNT_inc (data);
1500 req->ptr2 = (char *)svptr + offset;
1501 req->size = len;
1502
1503 REQ_SEND;
1504 }
1505}
1506
1507void
1508aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1509 PPCODE:
1510{
1511 dREQ;
1512
1513 req->type = EIO_MLOCKALL;
1514 req->int1 = flags;
1515
1516 REQ_SEND;
1517}
1518
1519void
1520aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1521 PPCODE:
1522{
1523 int fd = s_fileno_croak (fh, 0);
1524 dREQ;
1525
1526 req->type = EIO_CUSTOM;
1527 req->sv1 = newSVsv (fh);
1528 req->int1 = fd;
1529
1530 req->feed = fiemap;
1531#if HAVE_FIEMAP
1532 /* keep our fingers crossed that the next two types are 64 bit */
1533 req->offs = start;
1534 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1535 req->int2 = flags;
1536 req->int3 = SvOK (count) ? SvIV (count) : -1;
1537#endif
1538
1539 REQ_SEND;
1540}
1541
1542void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1543aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1544 PPCODE:
1786{ 1545{
1787 dREQ; 1546 dREQ;
1788 1547
1789 req->type = REQ_BUSY; 1548 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1549 req->nv1 = delay < 0. ? 0. : delay;
1791 1550
1792 REQ_SEND; 1551 REQ_SEND;
1793} 1552}
1794 1553
1795void 1554void
1796aio_group (SV *callback=&PL_sv_undef) 1555aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1556 PPCODE:
1799{ 1557{
1800 dREQ; 1558 dREQ;
1801 1559
1802 req->type = REQ_GROUP; 1560 req->type = EIO_GROUP;
1803 1561
1804 req_send (req); 1562 req_submit (req);
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1563 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1564}
1807 1565
1808void 1566void
1809aio_nop (SV *callback=&PL_sv_undef) 1567aio_nop (SV *callback=&PL_sv_undef)
1568 ALIAS:
1569 aio_nop = EIO_NOP
1570 aio_sync = EIO_SYNC
1810 PPCODE: 1571 PPCODE:
1811{ 1572{
1812 dREQ; 1573 dREQ;
1813 1574
1814 req->type = REQ_NOP; 1575 req->type = ix;
1815 1576
1816 REQ_SEND; 1577 REQ_SEND;
1817} 1578}
1818 1579
1819int 1580int
1820aioreq_pri (int pri = 0) 1581aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1582 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1583 RETVAL = next_pri;
1824 if (items > 0) 1584 if (items > 0)
1825 { 1585 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1586 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1587 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1588 next_pri = pri;
1829 } 1589 }
1830 OUTPUT: 1590 OUTPUT:
1831 RETVAL 1591 RETVAL
1832 1592
1833void 1593void
1834aioreq_nice (int nice = 0) 1594aioreq_nice (int nice = 0)
1835 CODE: 1595 CODE:
1836 nice = next_pri - nice; 1596 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1597 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1598 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1599 next_pri = nice;
1840 1600
1841void 1601void
1842flush () 1602flush ()
1843 PROTOTYPE:
1844 CODE: 1603 CODE:
1845 while (nreqs) 1604 while (eio_nreqs ())
1846 { 1605 {
1847 poll_wait (); 1606 poll_wait ();
1848 poll_cb (); 1607 poll_cb ();
1849 } 1608 }
1850 1609
1851int 1610int
1852poll() 1611poll ()
1853 PROTOTYPE:
1854 CODE: 1612 CODE:
1855 poll_wait (); 1613 poll_wait ();
1856 RETVAL = poll_cb (); 1614 RETVAL = poll_cb ();
1857 OUTPUT: 1615 OUTPUT:
1858 RETVAL 1616 RETVAL
1859 1617
1860int 1618int
1861poll_fileno() 1619poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1620 CODE:
1864 RETVAL = respipe [0]; 1621 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1622 OUTPUT:
1866 RETVAL 1623 RETVAL
1867 1624
1868int 1625int
1869poll_cb(...) 1626poll_cb (...)
1870 PROTOTYPE: 1627 PROTOTYPE:
1871 CODE: 1628 CODE:
1872 RETVAL = poll_cb (); 1629 RETVAL = poll_cb ();
1873 OUTPUT: 1630 OUTPUT:
1874 RETVAL 1631 RETVAL
1875 1632
1876void 1633void
1877poll_wait() 1634poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1635 CODE:
1880 poll_wait (); 1636 poll_wait ();
1881 1637
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1638int
1920nreqs() 1639nreqs ()
1921 PROTOTYPE:
1922 CODE: 1640 CODE:
1923 RETVAL = nreqs; 1641 RETVAL = eio_nreqs ();
1924 OUTPUT: 1642 OUTPUT:
1925 RETVAL 1643 RETVAL
1926 1644
1927int 1645int
1928nready() 1646nready ()
1929 PROTOTYPE:
1930 CODE: 1647 CODE:
1931 RETVAL = get_nready (); 1648 RETVAL = eio_nready ();
1932 OUTPUT: 1649 OUTPUT:
1933 RETVAL 1650 RETVAL
1934 1651
1935int 1652int
1936npending() 1653npending ()
1937 PROTOTYPE:
1938 CODE: 1654 CODE:
1939 RETVAL = get_npending (); 1655 RETVAL = eio_npending ();
1940 OUTPUT: 1656 OUTPUT:
1941 RETVAL 1657 RETVAL
1942 1658
1943int 1659int
1944nthreads() 1660nthreads ()
1945 PROTOTYPE:
1946 CODE: 1661 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1662 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1663 OUTPUT:
1951 RETVAL 1664 RETVAL
1952 1665
1666int
1667fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1668 CODE:
1669 RETVAL = posix_fadvise (fh, offset, length, advice);
1670 OUTPUT:
1671 RETVAL
1672
1673IV
1674sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1675 CODE:
1676 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1677 OUTPUT:
1678 RETVAL
1679
1680void
1681mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1682 PPCODE:
1683 sv_unmagic (scalar, MMAP_MAGIC);
1684{
1685 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1686 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1687 if (addr == (void *)-1)
1688 XSRETURN_NO;
1689
1690 sv_force_normal (scalar);
1691
1692 /* we store the length in mg_obj, as namlen is I32 :/ */
1693 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1694 ->mg_obj = (SV *)length;
1695
1696 SvUPGRADE (scalar, SVt_PV); /* nop... */
1697
1698 if (!(prot & PROT_WRITE))
1699 SvREADONLY_on (scalar);
1700
1701 if (SvLEN (scalar))
1702 Safefree (SvPVX (scalar));
1703
1704 SvPVX (scalar) = (char *)addr;
1705 SvCUR_set (scalar, length);
1706 SvLEN_set (scalar, 0);
1707 SvPOK_only (scalar);
1708
1709 XSRETURN_YES;
1710}
1711
1712void
1713munmap (SV *scalar)
1714 CODE:
1715 sv_unmagic (scalar, MMAP_MAGIC);
1716
1717int
1718madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1719 ALIAS:
1720 mprotect = 1
1721 CODE:
1722{
1723 STRLEN svlen;
1724 void *addr = SvPVbyte (scalar, svlen);
1725 size_t len = SvUV (length);
1726
1727 if (offset < 0)
1728 offset += svlen;
1729
1730 if (offset < 0 || offset > svlen)
1731 croak ("offset outside of scalar");
1732
1733 if (!SvOK (length) || len + offset > svlen)
1734 len = svlen - offset;
1735
1736 addr = (void *)(((intptr_t)addr) + offset);
1737 eio_page_align (&addr, &len);
1738
1739 switch (ix)
1740 {
1741 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1742 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1743 }
1744}
1745 OUTPUT:
1746 RETVAL
1747
1748int
1749munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1750 CODE:
1751{
1752 STRLEN svlen;
1753 void *addr = SvPVbyte (scalar, svlen);
1754 size_t len = SvUV (length);
1755
1756 if (offset < 0)
1757 offset += svlen;
1758
1759 if (offset < 0 || offset > svlen)
1760 croak ("offset outside of scalar");
1761
1762 if (!SvOK (length) || len + offset > svlen)
1763 len = svlen - offset;
1764
1765 addr = (void *)(((intptr_t)addr) + offset);
1766 eio_page_align (&addr, &len);
1767#if _POSIX_MEMLOCK_RANGE
1768 RETVAL = munlock (addr, len);
1769#else
1770 RETVAL = ((errno = ENOSYS), -1);
1771#endif
1772}
1773 OUTPUT:
1774 RETVAL
1775
1776int
1777munlockall ()
1778 CODE:
1779#if _POSIX_MEMLOCK
1780 munlockall ();
1781#else
1782 RETVAL = -1;
1783 errno = ENOSYS;
1784#endif
1785 OUTPUT:
1786 RETVAL
1787
1788void _on_next_submit (SV *cb)
1789 CODE:
1790 SvREFCNT_dec (on_next_submit);
1791 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1792
1953PROTOTYPES: DISABLE 1793PROTOTYPES: DISABLE
1794
1795MODULE = IO::AIO PACKAGE = IO::AIO::WD
1796
1797BOOT:
1798{
1799 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1800 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1801}
1802
1803void
1804DESTROY (SV *self)
1805 CODE:
1806{
1807 aio_wd wd = SvAIO_WD (self);
1808#if HAVE_AT
1809 {
1810 SV *callback = &PL_sv_undef;
1811 dREQ; /* clobbers next_pri :/ */
1812 next_pri = req->pri; /* restore next_pri */
1813 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1814 req->type = EIO_WD_CLOSE;
1815 req->wd = wd;
1816 REQ_SEND;
1817 }
1818#else
1819 eio_wd_close_sync (wd);
1820#endif
1821}
1954 1822
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1823MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1824
1957void 1825void
1958cancel (aio_req_ornot req) 1826cancel (aio_req_ornot req)
1959 CODE: 1827 CODE:
1960 req_cancel (req); 1828 eio_cancel (req);
1961 1829
1962void 1830void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1831cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1832 PPCODE:
1833{
1834 if (GIMME_V != G_VOID)
1835 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1836
1837 if (items > 1)
1838 {
1839 SV *cb_cv =get_cb (callback);
1840
1965 SvREFCNT_dec (req->callback); 1841 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1842 req->callback = SvREFCNT_inc (cb_cv);
1843 }
1844}
1967 1845
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1846MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1847
1970void 1848void
1971add (aio_req grp, ...) 1849add (aio_req grp, ...)
1972 PPCODE: 1850 PPCODE:
1973{ 1851{
1974 int i; 1852 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 1853
1980 if (grp->int1 == 2) 1854 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1855 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1856
1983 for (i = 1; i < items; ++i ) 1857 for (i = 1; i < items; ++i )
1984 { 1858 {
1859 aio_req req;
1860
1985 if (GIMME_V != G_VOID) 1861 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1862 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1863
1988 req = SvAIO_REQ (ST (i)); 1864 req = SvAIO_REQ (ST (i));
1989 1865
1990 if (req) 1866 if (req)
1991 { 1867 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 1868 }
2004} 1869}
2005 1870
2006void 1871void
2007cancel_subs (aio_req_ornot req) 1872cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1881 AV *av;
2017 1882
2018 grp->errorno = errno; 1883 grp->errorno = errno;
2019 1884
2020 av = newAV (); 1885 av = newAV ();
1886 av_extend (av, items - 1);
2021 1887
2022 for (i = 1; i < items; ++i ) 1888 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1889 av_push (av, newSVsv (ST (i)));
2024 1890
2025 SvREFCNT_dec (grp->sv1); 1891 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 1898 grp->errorno = errorno;
2033 1899
2034void 1900void
2035limit (aio_req grp, int limit) 1901limit (aio_req grp, int limit)
2036 CODE: 1902 CODE:
2037 grp->int2 = limit; 1903 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 1904
2040void 1905void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 1906feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 1907 CODE:
2043{ 1908{
2044 SvREFCNT_dec (grp->sv2); 1909 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 1910 grp->sv2 = newSVsv (callback);
1911 grp->feed = aio_grp_feed;
2046 1912
2047 if (grp->int2 <= 0) 1913 if (grp->int2 <= 0)
2048 grp->int2 = 2; 1914 grp->int2 = 2;
2049 1915
2050 aio_grp_feed (grp); 1916 eio_grp_limit (grp, grp->int2);
2051} 1917}
2052 1918

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