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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.110 by root, Sun Dec 2 20:54:33 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
29# undef send 50 #undef send
30# undef recv 51 #undef recv
31# undef stat 52 #undef stat
53 #undef lstat
32# undef fstat 54 #undef fstat
33# define lstat stat
34# undef truncate 55 #undef truncate
35# undef ftruncate 56 #undef ftruncate
36# undef open 57 #undef open
58 #undef link
37# undef close 59 #undef close
38# undef unlink 60 #undef unlink
61 #undef mkdir
39# undef rmdir 62 #undef rmdir
40# undef rename 63 #undef rename
41# 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
42 74
43# define chown(a,b,c) (errno = ENOSYS, -1) 75 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 77
57#else 78#else
58 79
59# include "autoconf/config.h"
60# include <sys/time.h> 80 #include <sys/time.h>
61# include <sys/select.h> 81 #include <sys/select.h>
62# include <unistd.h> 82 #include <unistd.h>
63# include <utime.h> 83 #include <utime.h>
64# include <signal.h> 84 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 85
67#endif 86 #define EIO_STRUCT_STAT Stat_t
68 87
69#if HAVE_SENDFILE 88#endif
70# if __linux 89
71# include <sys/sendfile.h> 90/*****************************************************************************/
72# elif __freebsd 91
73# include <sys/socket.h> 92#if __GNUC__ >= 3
74# include <sys/uio.h> 93# define expect(expr,value) __builtin_expect ((expr),(value))
75# elif __hpux 94#else
76# include <sys/socket.h> 95# define expect(expr,value) (expr)
77# elif __solaris /* not yet */ 96#endif
78# 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
79# else 139# else
80# error sendfile support requested but not available 140# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 141# endif
82#endif 142#endif
83 143
84/* number of seconds after which idle threads exit */ 144/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 145#include "def0.h"
86 146
87/* used for struct dirent, AIX doesn't provide it */ 147#ifndef makedev
88#ifndef NAME_MAX 148# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#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
91 156
92/* buffer size for various temporary buffers */ 157#ifndef PAGESIZE
93#define AIO_BUFSIZE 65536 158# define PAGESIZE sysconf (_SC_PAGESIZE)
159#endif
94 160
95/* use NV for 32 bit perls as it allows larger offsets */ 161/*****************************************************************************/
96#if IVSIZE >= 8 162
97# 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
98#else 214#else
99# define SvVAL64 SvNV 215 errno = ENOSYS;
100#endif 216#endif
217}
101 218
102static HV *stash; 219/*****************************************************************************/
103
104#define dBUF \
105 char *aio_buf; \
106 X_LOCK (wrklock); \
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
108 X_UNLOCK (wrklock); \
109 if (!aio_buf) \
110 return -1;
111
112typedef SV SV8; /* byte-sv, used for argument-checking */
113 220
114enum { 221enum {
115 REQ_QUIT, 222 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 223};
131 224
132#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134
135typedef struct aio_cb
136{
137 struct aio_cb *volatile next;
138
139 SV *callback;
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146
147 STRLEN stroffset;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152
153 unsigned char flags;
154 unsigned char pri;
155
156 SV *self; /* the perl counterpart of this request, if any */
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
158} aio_cb;
159
160enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164};
165
166typedef aio_cb *aio_req; 225typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 226typedef eio_req *aio_req_ornot;
227typedef eio_wd aio_wd;
168 228
169enum { 229static SV *on_next_submit;
170 PRI_MIN = -4, 230static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 231static int max_outstanding;
172 232
173 DEFAULT_PRI = 0, 233static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 234
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig ()
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return;
200
201 if (!main_sig)
202 return;
203
204 sigemptyset (&ss);
205 sigaddset (&ss, main_sig);
206 pthread_sigmask (SIG_BLOCK, &ss, 0);
207}
208
209void unblock_sig ()
210{
211 sigset_t ss;
212
213 if (--block_sig_level)
214 return;
215
216 if (!main_sig)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 {
249 closedir (wrk->dirp);
250 wrk->dirp = 0;
251 }
252
253 if (wrk->dbuf)
254 {
255 free (wrk->dbuf);
256 wrk->dbuf = 0;
257 }
258}
259
260static void worker_free (worker *wrk)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0;
355
356 --q->size;
357
358 for (pri = NUM_PRI; pri--; )
359 {
360 aio_req req = q->qs[pri];
361
362 if (req)
363 {
364 if (!(q->qs[pri] = req->next))
365 q->qe[pri] = 0;
366
367 return req;
368 }
369 }
370
371 abort ();
372}
373
374static int poll_cb ();
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 235static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 236static void req_cancel (aio_req req);
378 237
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
379/* must be called at most once */ 252/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 253static SV *
254req_sv (aio_req req, HV *stash)
381{ 255{
382 if (!req->self) 256 if (!req->self)
383 { 257 {
384 req->self = (SV *)newHV (); 258 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 260 }
387 261
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 262 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 263}
390 264
391static 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)
392{ 273{
393 MAGIC *mg; 274 MAGIC *mg;
394 275
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 281 croak ("object of class IO::AIO::REQ expected");
397 282
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 283 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 284
400 return mg ? (aio_req)mg->mg_ptr : 0; 285 return mg ? (aio_req)mg->mg_ptr : 0;
401} 286}
402 287
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
403static void aio_grp_feed (aio_req grp) 300aio_grp_feed (aio_req grp)
404{ 301{
405 block_sig (); 302 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 303 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 304 dSP;
414 305
415 ENTER; 306 ENTER;
416 SAVETMPS; 307 SAVETMPS;
417 PUSHMARK (SP); 308 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 309 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 310 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 311 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 312 SPAGAIN;
422 FREETMPS; 313 FREETMPS;
423 LEAVE; 314 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 315 }
434
435 unblock_sig ();
436} 316}
437 317
438static void aio_grp_dec (aio_req grp) 318static void
319req_submit (eio_req *req)
439{ 320{
440 --grp->size; 321 eio_submit (req);
441 322
442 /* call feeder, if applicable */ 323 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 324 {
448 block_sig (); 325 dSP;
326 SV *cb = sv_2mortal (on_next_submit);
449 327
450 if (!req_invoke (grp)) 328 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 329
457 req_destroy (grp); 330 PUSHMARK (SP);
458 unblock_sig (); 331 PUTBACK;
332 call_sv (cb, G_DISCARD | G_EVAL);
459 } 333 }
460} 334}
461 335
336static int
462static int req_invoke (aio_req req) 337req_invoke (eio_req *req)
463{ 338{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
468 341
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 342 if (!EIO_CANCELLED (req) && req->callback)
470 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
471 ENTER; 348 ENTER;
472 SAVETMPS; 349 SAVETMPS;
473 PUSHMARK (SP); 350 PUSHMARK (SP);
474 EXTEND (SP, 1); 351 EXTEND (SP, 1);
475 352
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
476 switch (req->type) 366 switch (req->type)
477 { 367 {
368 case EIO_WD_OPEN:
369 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
370 break;
371
478 case REQ_READDIR: 372 case EIO_READDIR:
479 { 373 {
480 SV *rv = &PL_sv_undef; 374 SV *rv = &PL_sv_undef;
481 375
482 if (req->result >= 0) 376 if (req->result >= 0)
483 { 377 {
484 int i; 378 int i;
485 char *buf = req->ptr2; 379 char *names = (char *)req->ptr2;
380 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 381 AV *av = newAV ();
487 382
488 av_extend (av, req->result - 1); 383 av_extend (av, req->result - 1);
489 384
490 for (i = 0; i < req->result; ++i) 385 for (i = 0; i < req->result; ++i)
491 { 386 {
492 SV *sv = newSVpv (buf, 0); 387 if (req->int1 & EIO_READDIR_DENTS)
388 {
389 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 390
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
494 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);
495 buf += SvCUR (sv) + 1; 419 names += SvCUR (name) + 1;
420 }
496 } 421 }
497 422
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 423 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 424 }
500 425
501 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))));
502 } 430 }
503 break; 431 break;
504 432
505 case REQ_OPEN: 433 case EIO_OPEN:
506 { 434 {
507 /* convert fd to fh */ 435 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 436 SV *fh = &PL_sv_undef;
509 437
510 if (req->result >= 0) 438 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 440 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 441 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 442 char sym [64];
515 int symlen; 443 int symlen;
516 444
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 445 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 446 gv_init (gv, aio_stash, sym, symlen, 0);
519 447
520 symlen = snprintf ( 448 symlen = snprintf (
521 sym, 449 sym,
522 sizeof (sym), 450 sizeof (sym),
523 "%s&=%d", 451 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 452 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 453 (int)req->result
526 ); 454 );
527 455
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 456 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 457 fh = (SV *)gv;
530 } 458 }
531 459
532 PUSHs (fh); 460 PUSHs (fh);
533 } 461 }
534 break; 462 break;
535 463
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
536 case REQ_GROUP: 496 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 497 req->int1 = 2; /* mark group as finished */
538 498
539 if (req->sv1) 499 if (req->sv1)
540 { 500 {
541 int i; 501 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 505 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 506 PUSHs (*av_fetch (av, i, 0));
547 } 507 }
548 break; 508 break;
549 509
550 case REQ_NOP: 510 case EIO_NOP:
551 case REQ_BUSY: 511 case EIO_BUSY:
552 break; 512 break;
553 513
554 case REQ_READLINK: 514 case EIO_READLINK:
515 case EIO_REALPATH:
555 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)
556 { 548 {
557 SvCUR_set (req->sv2, req->result); 549#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 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
560 } 581 }
582 else
583 PUSHs (sv_result);
561 break; 584 break;
562 585
563 case REQ_STAT: 586 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 587 if (req->result > 0)
565 case REQ_FSTAT: 588 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 589 /* FALLTHROUGH */
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break;
571
572 case REQ_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break;
577 590
578 default: 591 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 592 PUSHs (sv_result);
580 break; 593 break;
581 } 594 }
582 595
583 errno = req->errorno; 596 errno = req->errorno;
584 597
585 PUTBACK; 598 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 599 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 600 SPAGAIN;
588 601
602 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
603 SvREFCNT_dec (sv_result);
604 else
605 sv_result_cache = sv_result;
606
589 FREETMPS; 607 FREETMPS;
590 LEAVE; 608 LEAVE;
591 609
592 PUTBACK; 610 PUTBACK;
593 } 611 }
594 612
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 613 return !!SvTRUE (ERRSV);
610} 614}
611 615
616static void
612static void req_destroy (aio_req req) 617req_destroy (aio_req req)
613{ 618{
614 if (req->self) 619 if (req->self)
615 { 620 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 621 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 622 SvREFCNT_dec (req->self);
618 } 623 }
619 624
620 SvREFCNT_dec (req->sv1); 625 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 626 SvREFCNT_dec (req->sv2);
627 SvREFCNT_dec (req->sv3);
628 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 629 SvREFCNT_dec (req->callback);
623 630
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 631 free (req);
628} 632}
629 633
634static void
630static void req_cancel_subs (aio_req grp) 635req_cancel_subs (aio_req grp)
631{ 636{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 637 if (grp->type != EIO_GROUP)
635 return; 638 return;
636 639
637 SvREFCNT_dec (grp->sv2); 640 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 641 grp->sv2 = 0;
639 642
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 643 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 644}
643 645
644static void req_cancel (aio_req req) 646static void ecb_cold
647create_respipe (void)
645{ 648{
646 req->flags |= FLAG_CANCELLED; 649 if (s_epipe_renew (&respipe))
647 650 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 651}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656 652
657static void 653static void
658create_respipe () 654poll_wait (void)
659{ 655{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe))
669#endif
670 croak ("unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread ()
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait ()
791{
792 fd_set rfd;
793
794 while (nreqs) 656 while (eio_nreqs ())
795 { 657 {
796 int size; 658 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 659
660 X_LOCK (reslock);
798 size = res_queue.size; 661 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 662 X_UNLOCK (reslock);
800 663
801 if (size) 664 if (size)
802 return; 665 return;
803 666
804 maybe_start_thread (); 667 etp_maybe_start_thread ();
805 668
806 FD_ZERO (&rfd); 669 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 670 }
811} 671}
812 672
813static int poll_cb () 673static int
674poll_cb (void)
814{ 675{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 676 for (;;)
828 { 677 {
829 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)
830 { 791 {
831 maybe_start_thread (); 792 path = AvARRAY (rv)[1];
793 wdob = AvARRAY (rv)[0];
832 794
833 X_LOCK (reslock); 795 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 796 {
838 --npending; 797 *wd = SvAIO_WD (wdob);
839 798 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 } 799 }
861 else 800 else
862 { 801 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 } 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 }
886 813
887 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)));
888 break; 837 break;
889 838
890 poll_wait (); 839 default:
891 840 req->type = type_path;
892 ++maxreqs; 841 req_set_path1 (req, fh_or_path);
842 break;
893 } 843 }
894
895 unblock_sig ();
896 return count;
897} 844}
898 845
899/*****************************************************************************/ 846XS(boot_IO__AIO) ecb_cold;
900/* work around various missing functions */
901 847
902#if !HAVE_PREADWRITE
903# define pread aio_pread
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{
915 ssize_t res;
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926}
927
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
929{
930 ssize_t res;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183/*****************************************************************************/
1184
1185X_THREAD_PROC (aio_proc)
1186{
1187 {//D
1188 aio_req req;
1189 struct timespec ts;
1190 worker *self = (worker *)thr_arg;
1191
1192 /* try to distribute timeouts somewhat randomly */
1193 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1194
1195 for (;;)
1196 {
1197 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1198
1199 X_LOCK (reqlock);
1200
1201 for (;;)
1202 {
1203 self->req = req = reqq_shift (&req_queue);
1204
1205 if (req)
1206 break;
1207
1208 ++idle;
1209
1210 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1211 == ETIMEDOUT)
1212 {
1213 if (idle > max_idle)
1214 {
1215 --idle;
1216 X_UNLOCK (reqlock);
1217 X_LOCK (wrklock);
1218 --started;
1219 X_UNLOCK (wrklock);
1220 goto quit;
1221 }
1222
1223 /* we are allowed to idle, so do so without any timeout */
1224 X_COND_WAIT (reqwait, reqlock);
1225 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1226 }
1227
1228 --idle;
1229 }
1230
1231 --nready;
1232
1233 X_UNLOCK (reqlock);
1234
1235 errno = 0; /* strictly unnecessary */
1236
1237 if (!(req->flags & FLAG_CANCELLED))
1238 switch (req->type)
1239 {
1240 case REQ_READ: req->result = req->offs >= 0
1241 ? pread (req->int1, req->ptr1, req->size, req->offs)
1242 : read (req->int1, req->ptr1, req->size); break;
1243 case REQ_WRITE: req->result = req->offs >= 0
1244 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1245 : write (req->int1, req->ptr1, req->size); break;
1246
1247 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1248 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1249
1250 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1252 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1253
1254 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1255 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1256 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1257 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1258 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1259 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1260
1261 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1262 case REQ_CLOSE: req->result = close (req->int1); break;
1263 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1264 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1265 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1266 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1267 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1268 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1269 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1270 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1271
1272 case REQ_SYNC: req->result = 0; sync (); break;
1273 case REQ_FSYNC: req->result = fsync (req->int1); break;
1274 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1275
1276 case REQ_READDIR: scandir_ (req, self); break;
1277
1278 case REQ_BUSY:
1279#ifdef _WIN32
1280 Sleep (req->nv1 * 1000.);
1281#else
1282 {
1283 struct timeval tv;
1284
1285 tv.tv_sec = req->nv1;
1286 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1287
1288 req->result = select (0, 0, 0, 0, &tv);
1289 }
1290#endif
1291 break;
1292
1293 case REQ_UTIME:
1294 case REQ_FUTIME:
1295 {
1296 struct timeval tv[2];
1297 struct timeval *times;
1298
1299 if (req->nv1 != -1. || req->nv2 != -1.)
1300 {
1301 tv[0].tv_sec = req->nv1;
1302 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1303 tv[1].tv_sec = req->nv2;
1304 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1305
1306 times = tv;
1307 }
1308 else
1309 times = 0;
1310
1311
1312 req->result = req->type == REQ_FUTIME
1313 ? futimes (req->int1, times)
1314 : utimes (req->ptr1, times);
1315 }
1316
1317 case REQ_GROUP:
1318 case REQ_NOP:
1319 break;
1320
1321 case REQ_QUIT:
1322 goto quit;
1323
1324 default:
1325 req->result = -1;
1326 break;
1327 }
1328
1329 req->errorno = errno;
1330
1331 X_LOCK (reslock);
1332
1333 ++npending;
1334
1335 if (!reqq_push (&res_queue, req))
1336 {
1337 /* write a dummy byte to the pipe so fh becomes ready */
1338 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1339
1340 /* optionally signal the main thread asynchronously */
1341 if (main_sig)
1342 pthread_kill (main_tid, main_sig);
1343 }
1344
1345 self->req = 0;
1346 worker_clear (self);
1347
1348 X_UNLOCK (reslock);
1349 }
1350
1351quit:
1352 X_LOCK (wrklock);
1353 worker_free (self);
1354 X_UNLOCK (wrklock);
1355
1356 return 0;
1357 }//D
1358}
1359
1360/*****************************************************************************/
1361
1362static void atfork_prepare (void)
1363{
1364 X_LOCK (wrklock);
1365 X_LOCK (reqlock);
1366 X_LOCK (reslock);
1367#if !HAVE_PREADWRITE
1368 X_LOCK (preadwritelock);
1369#endif
1370#if !HAVE_READDIR_R
1371 X_LOCK (readdirlock);
1372#endif
1373}
1374
1375static void atfork_parent (void)
1376{
1377#if !HAVE_READDIR_R
1378 X_UNLOCK (readdirlock);
1379#endif
1380#if !HAVE_PREADWRITE
1381 X_UNLOCK (preadwritelock);
1382#endif
1383 X_UNLOCK (reslock);
1384 X_UNLOCK (reqlock);
1385 X_UNLOCK (wrklock);
1386}
1387
1388static void atfork_child (void)
1389{
1390 aio_req prv;
1391
1392 while (prv = reqq_shift (&req_queue))
1393 req_destroy (prv);
1394
1395 while (prv = reqq_shift (&res_queue))
1396 req_destroy (prv);
1397
1398 while (wrk_first.next != &wrk_first)
1399 {
1400 worker *wrk = wrk_first.next;
1401
1402 if (wrk->req)
1403 req_destroy (wrk->req);
1404
1405 worker_clear (wrk);
1406 worker_free (wrk);
1407 }
1408
1409 started = 0;
1410 idle = 0;
1411 nreqs = 0;
1412 nready = 0;
1413 npending = 0;
1414
1415 create_respipe ();
1416
1417 atfork_parent ();
1418}
1419
1420#define dREQ \
1421 aio_req req; \
1422 int req_pri = next_pri; \
1423 next_pri = DEFAULT_PRI + PRI_BIAS; \
1424 \
1425 if (SvOK (callback) && !SvROK (callback)) \
1426 croak ("callback must be undef or of reference type"); \
1427 \
1428 Newz (0, req, 1, aio_cb); \
1429 if (!req) \
1430 croak ("out of memory during aio_req allocation"); \
1431 \
1432 req->callback = newSVsv (callback); \
1433 req->pri = req_pri
1434
1435#define REQ_SEND \
1436 req_send (req); \
1437 \
1438 if (GIMME_V != G_VOID) \
1439 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1440
1441MODULE = IO::AIO PACKAGE = IO::AIO 848MODULE = IO::AIO PACKAGE = IO::AIO
1442 849
1443PROTOTYPES: ENABLE 850PROTOTYPES: ENABLE
1444 851
1445BOOT: 852BOOT:
1446{ 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
1447 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);
1448 999
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1000 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1001 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1451 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1452 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1453 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1454#ifdef _WIN32
1455 X_MUTEX_CHECK (wrklock);
1456 X_MUTEX_CHECK (reslock);
1457 X_MUTEX_CHECK (reqlock);
1458 X_MUTEX_CHECK (reqwait);
1459 X_MUTEX_CHECK (preadwritelock);
1460 X_MUTEX_CHECK (readdirlock);
1461 1002
1462 X_COND_CHECK (reqwait); 1003 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1463#else
1464 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1465 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1466#endif
1467 1004
1468 create_respipe (); 1005 reinit ();
1469
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1471} 1006}
1472 1007
1473void 1008void
1009reinit ()
1010 PROTOTYPE:
1011
1012void
1474max_poll_reqs (int nreqs) 1013max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 1014 PROTOTYPE: $
1476 CODE: 1015 CODE:
1477 max_poll_reqs = nreqs; 1016 eio_set_max_poll_reqs (nreqs);
1478 1017
1479void 1018void
1480max_poll_time (double nseconds) 1019max_poll_time (double nseconds)
1481 PROTOTYPE: $ 1020 PROTOTYPE: $
1482 CODE: 1021 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 1022 eio_set_max_poll_time (nseconds);
1484 1023
1485void 1024void
1486min_parallel (int nthreads) 1025min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 1026 PROTOTYPE: $
1496 CODE: 1027 CODE:
1497 set_max_idle (nthreads); 1028 eio_set_min_parallel (nthreads);
1498 1029
1499int 1030void
1500max_outstanding (int maxreqs) 1031max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 1032 PROTOTYPE: $
1502 CODE: 1033 CODE:
1503 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:
1504 max_outstanding = maxreqs; 1052 max_outstanding = maxreqs;
1505 OUTPUT: 1053
1506 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}
1507 1065
1508void 1066void
1509aio_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)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 1068 PPCODE:
1512{ 1069{
1513 dREQ; 1070 dREQ;
1514 1071
1515 req->type = REQ_OPEN; 1072 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 1073 req_set_path1 (req, pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 1074 req->int1 = flags;
1519 req->mode = mode; 1075 req->int2 = mode;
1520 1076
1521 REQ_SEND; 1077 REQ_SEND;
1522} 1078}
1523 1079
1524void 1080void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1081aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 1082 ALIAS:
1528 aio_fsync = REQ_FSYNC 1083 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 1084 aio_fdatasync = EIO_FDATASYNC
1085 aio_syncfs = EIO_SYNCFS
1530 PPCODE: 1086 PPCODE:
1531{ 1087{
1088 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 1089 dREQ;
1533 1090
1534 req->type = ix; 1091 req->type = ix;
1535 req->sv1 = newSVsv (fh); 1092 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1093 req->int1 = fd;
1537 1094
1538 REQ_SEND (req); 1095 REQ_SEND;
1539} 1096}
1540 1097
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 1098void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 1099aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 1100 PPCODE:
1553{ 1101{
1102 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1103 dREQ;
1555 1104
1556 req->type = REQ_CLOSE; 1105 req->type = EIO_SYNC_FILE_RANGE;
1106 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 1107 req->int1 = fd;
1108 req->offs = offset;
1109 req->size = nbytes;
1110 req->int2 = flags;
1558 1111
1559 REQ_SEND (req); 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;
1560} 1180}
1561 1181
1562void 1182void
1563aio_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)
1564 ALIAS: 1184 ALIAS:
1565 aio_read = REQ_READ 1185 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1186 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1187 PPCODE:
1569{ 1188{
1570 STRLEN svlen; 1189 STRLEN svlen;
1190 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1191 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1192 UV len = SvUV (length);
1573 1193
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1194 if (dataoffset < 0)
1578 dataoffset += svlen; 1195 dataoffset += svlen;
1579 1196
1580 if (dataoffset < 0 || dataoffset > svlen) 1197 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1198 croak ("dataoffset outside of data scalar");
1582 1199
1583 if (ix == REQ_WRITE) 1200 if (ix == EIO_WRITE)
1584 { 1201 {
1585 /* write: check length and adjust. */ 1202 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1203 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1204 len = svlen - dataoffset;
1588 } 1205 }
1589 else 1206 else
1590 { 1207 {
1591 /* read: grow scalar as necessary */ 1208 /* read: check type and grow scalar as necessary */
1209 SvUPGRADE (data, SVt_PV);
1592 svptr = SvGROW (data, len + dataoffset + 1); 1210 svptr = SvGROW (data, len + dataoffset + 1);
1593 } 1211 }
1594 1212
1595 if (len < 0)
1596 croak ("length must not be negative");
1597
1598 { 1213 {
1599 dREQ; 1214 dREQ;
1600 1215
1601 req->type = ix; 1216 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1217 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1218 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1219 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1220 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1221 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1222 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1223 req->stroffset = dataoffset;
1610 1224
1611 if (!SvREADONLY (data)) 1225 if (!SvREADONLY (data))
1612 { 1226 {
1613 SvREADONLY_on (data); 1227 SvREADONLY_on (data);
… …
1617 REQ_SEND; 1231 REQ_SEND;
1618 } 1232 }
1619} 1233}
1620 1234
1621void 1235void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1236aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1623 PROTOTYPE: $$;$ 1237 ALIAS:
1238 aio_readlink = EIO_READLINK
1239 aio_realpath = EIO_REALPATH
1624 PPCODE: 1240 PPCODE:
1625{ 1241{
1626 SV *data;
1627 dREQ; 1242 dREQ;
1628 1243
1629 data = newSV (NAME_MAX);
1630 SvPOK_on (data);
1631
1632 req->type = REQ_READLINK; 1244 req->type = ix;
1633 req->sv1 = newSVsv (path); 1245 req_set_path1 (req, pathname);
1634 req->ptr2 = SvPVbyte_nolen (req->sv1);
1635 req->sv2 = data;
1636 req->ptr1 = SvPVbyte_nolen (data);
1637 1246
1638 REQ_SEND; 1247 REQ_SEND;
1639} 1248}
1640 1249
1641void 1250void
1642aio_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)
1643 PROTOTYPE: $$$$;$
1644 PPCODE: 1252 PPCODE:
1645{ 1253{
1254 int ifd = s_fileno_croak (in_fh , 0);
1255 int ofd = s_fileno_croak (out_fh, 1);
1646 dREQ; 1256 dREQ;
1647 1257
1648 req->type = REQ_SENDFILE; 1258 req->type = EIO_SENDFILE;
1649 req->sv1 = newSVsv (out_fh); 1259 req->sv1 = newSVsv (out_fh);
1650 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1260 req->int1 = ofd;
1651 req->sv2 = newSVsv (in_fh); 1261 req->sv2 = newSVsv (in_fh);
1652 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1262 req->int2 = ifd;
1653 req->offs = SvVAL64 (in_offset); 1263 req->offs = in_offset;
1654 req->size = length; 1264 req->size = length;
1655 1265
1656 REQ_SEND; 1266 REQ_SEND;
1657} 1267}
1658 1268
1659void 1269void
1660aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1270aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$;$
1662 PPCODE: 1271 PPCODE:
1663{ 1272{
1273 int fd = s_fileno_croak (fh, 0);
1664 dREQ; 1274 dREQ;
1665 1275
1666 req->type = REQ_READAHEAD; 1276 req->type = EIO_READAHEAD;
1667 req->sv1 = newSVsv (fh); 1277 req->sv1 = newSVsv (fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1278 req->int1 = fd;
1669 req->offs = SvVAL64 (offset); 1279 req->offs = offset;
1670 req->size = length; 1280 req->size = length;
1671 1281
1672 REQ_SEND; 1282 REQ_SEND;
1673} 1283}
1674 1284
1675void 1285void
1676aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1286aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1677 ALIAS: 1287 ALIAS:
1678 aio_stat = REQ_STAT 1288 aio_stat = EIO_STAT
1679 aio_lstat = REQ_LSTAT 1289 aio_lstat = EIO_LSTAT
1290 aio_statvfs = EIO_STATVFS
1680 PPCODE: 1291 PPCODE:
1681{ 1292{
1682 dREQ; 1293 dREQ;
1683 1294
1684 req->ptr2 = malloc (sizeof (Stat_t)); 1295 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1685 if (!req->ptr2)
1686 {
1687 req_destroy (req);
1688 croak ("out of memory during aio_stat statdata allocation");
1689 }
1690
1691 req->flags |= FLAG_PTR2_FREE;
1692 req->sv1 = newSVsv (fh_or_path);
1693
1694 if (SvPOK (fh_or_path))
1695 {
1696 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 }
1699 else
1700 {
1701 req->type = REQ_FSTAT;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1703 }
1704 1296
1705 REQ_SEND; 1297 REQ_SEND;
1706} 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
1707 1315
1708void 1316void
1709aio_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)
1710 PPCODE: 1318 PPCODE:
1711{ 1319{
1712 dREQ; 1320 dREQ;
1713 1321
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1322 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1323 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1324 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1717
1718 if (SvPOK (fh_or_path))
1719 {
1720 req->type = REQ_UTIME;
1721 req->ptr1 = SvPVbyte_nolen (req->sv1);
1722 }
1723 else
1724 {
1725 req->type = REQ_FUTIME;
1726 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1727 }
1728 1325
1729 REQ_SEND; 1326 REQ_SEND;
1730} 1327}
1731 1328
1732void 1329void
1733aio_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)
1734 PPCODE: 1331 PPCODE:
1735{ 1332{
1736 dREQ; 1333 dREQ;
1737 1334
1738 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1335 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1336 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1741 if (SvPOK (fh_or_path))
1742 {
1743 req->type = REQ_TRUNCATE;
1744 req->ptr1 = SvPVbyte_nolen (req->sv1);
1745 }
1746 else
1747 {
1748 req->type = REQ_FTRUNCATE;
1749 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1750 }
1751 1337
1752 REQ_SEND; 1338 REQ_SEND;
1753} 1339}
1754 1340
1755void 1341void
1756aio_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)
1757 PPCODE: 1343 PPCODE:
1758{ 1344{
1759 dREQ; 1345 dREQ;
1760 1346
1761 req->mode = mode; 1347 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1348 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1763
1764 if (SvPOK (fh_or_path))
1765 {
1766 req->type = REQ_CHMOD;
1767 req->ptr1 = SvPVbyte_nolen (req->sv1);
1768 }
1769 else
1770 {
1771 req->type = REQ_FCHMOD;
1772 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1773 }
1774 1349
1775 REQ_SEND; 1350 REQ_SEND;
1776} 1351}
1777 1352
1778void 1353void
… …
1781{ 1356{
1782 dREQ; 1357 dREQ;
1783 1358
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1359 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1360 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1361 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1787 1362
1788 if (SvPOK (fh_or_path)) 1363 REQ_SEND;
1789 { 1364}
1790 req->type = REQ_CHOWN; 1365
1791 req->ptr1 = SvPVbyte_nolen (req->sv1); 1366void
1792 } 1367aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1793 else 1368 PPCODE:
1794 { 1369{
1795 req->type = REQ_FCHOWN; 1370 dREQ;
1796 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1371
1797 } 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);
1798 1392
1799 REQ_SEND; 1393 REQ_SEND;
1800} 1394}
1801 1395
1802void 1396void
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1397aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1804 ALIAS: 1398 ALIAS:
1805 aio_unlink = REQ_UNLINK 1399 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1400 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1401 aio_readdir = EIO_READDIR
1808 PPCODE: 1402 PPCODE:
1809{ 1403{
1810 dREQ; 1404 dREQ;
1811 1405
1812 req->type = ix; 1406 req->type = ix;
1813 req->sv1 = newSVsv (pathname); 1407 req_set_path1 (req, pathname);
1814 req->ptr1 = SvPVbyte_nolen (req->sv1);
1815
1816 REQ_SEND;
1817}
1818
1819void
1820aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1821 PPCODE:
1822{
1823 dREQ;
1824
1825 req->type = REQ_MKDIR;
1826 req->sv1 = newSVsv (pathname);
1827 req->ptr1 = SvPVbyte_nolen (req->sv1);
1828 req->mode = mode;
1829 1408
1830 REQ_SEND; 1409 REQ_SEND;
1831} 1410}
1832 1411
1833void 1412void
1834aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1413aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1835 ALIAS: 1414 ALIAS:
1836 aio_link = REQ_LINK 1415 aio_link = EIO_LINK
1837 aio_symlink = REQ_SYMLINK 1416 aio_symlink = EIO_SYMLINK
1838 aio_rename = REQ_RENAME 1417 aio_rename = EIO_RENAME
1839 PPCODE: 1418 PPCODE:
1840{ 1419{
1420 eio_wd wd2 = 0;
1841 dREQ; 1421 dREQ;
1842 1422
1843 req->type = ix; 1423 req->type = ix;
1844 req->sv2 = newSVsv (oldpath); 1424 req_set_path1 (req, oldpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2); 1425 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1846 req->sv1 = newSVsv (newpath); 1426 req->int3 = (long)wd2;
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1427
1849 REQ_SEND; 1428 REQ_SEND;
1850} 1429}
1851 1430
1852void 1431void
1853aio_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)
1854 PPCODE: 1433 PPCODE:
1855{ 1434{
1856 dREQ; 1435 dREQ;
1857 1436
1858 req->type = REQ_MKNOD; 1437 req->type = EIO_MKNOD;
1859 req->sv1 = newSVsv (pathname);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1);
1861 req->mode = (mode_t)mode; 1438 req->int2 = (mode_t)mode;
1862 req->offs = dev; 1439 req->offs = dev;
1440 req_set_path1 (req, pathname);
1863 1441
1864 REQ_SEND; 1442 REQ_SEND;
1865} 1443}
1866 1444
1867void 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
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1543aio_busy (double delay, SV *callback=&PL_sv_undef)
1869 PPCODE: 1544 PPCODE:
1870{ 1545{
1871 dREQ; 1546 dREQ;
1872 1547
1873 req->type = REQ_BUSY; 1548 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1549 req->nv1 = delay < 0. ? 0. : delay;
1875 1550
1876 REQ_SEND; 1551 REQ_SEND;
1877} 1552}
1878 1553
1879void 1554void
1880aio_group (SV *callback=&PL_sv_undef) 1555aio_group (SV *callback=&PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1556 PPCODE:
1883{ 1557{
1884 dREQ; 1558 dREQ;
1885 1559
1886 req->type = REQ_GROUP; 1560 req->type = EIO_GROUP;
1887 1561
1888 req_send (req); 1562 req_submit (req);
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1563 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1564}
1891 1565
1892void 1566void
1893aio_nop (SV *callback=&PL_sv_undef) 1567aio_nop (SV *callback=&PL_sv_undef)
1894 ALIAS: 1568 ALIAS:
1895 aio_nop = REQ_NOP 1569 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1570 aio_sync = EIO_SYNC
1897 PPCODE: 1571 PPCODE:
1898{ 1572{
1899 dREQ; 1573 dREQ;
1900 1574
1901 req->type = ix; 1575 req->type = ix;
… …
1903 REQ_SEND; 1577 REQ_SEND;
1904} 1578}
1905 1579
1906int 1580int
1907aioreq_pri (int pri = 0) 1581aioreq_pri (int pri = 0)
1908 PROTOTYPE: ;$
1909 CODE: 1582 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 1583 RETVAL = next_pri;
1911 if (items > 0) 1584 if (items > 0)
1912 { 1585 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 1586 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 1587 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 1588 next_pri = pri;
1916 } 1589 }
1917 OUTPUT: 1590 OUTPUT:
1918 RETVAL 1591 RETVAL
1919 1592
1920void 1593void
1921aioreq_nice (int nice = 0) 1594aioreq_nice (int nice = 0)
1922 CODE: 1595 CODE:
1923 nice = next_pri - nice; 1596 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 1597 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 1598 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 1599 next_pri = nice;
1927 1600
1928void 1601void
1929flush () 1602flush ()
1930 PROTOTYPE:
1931 CODE: 1603 CODE:
1932 while (nreqs) 1604 while (eio_nreqs ())
1933 { 1605 {
1934 poll_wait (); 1606 poll_wait ();
1935 poll_cb (); 1607 poll_cb ();
1936 } 1608 }
1937 1609
1938int 1610int
1939poll() 1611poll ()
1940 PROTOTYPE:
1941 CODE: 1612 CODE:
1942 poll_wait (); 1613 poll_wait ();
1943 RETVAL = poll_cb (); 1614 RETVAL = poll_cb ();
1944 OUTPUT: 1615 OUTPUT:
1945 RETVAL 1616 RETVAL
1946 1617
1947int 1618int
1948poll_fileno() 1619poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 1620 CODE:
1951 RETVAL = respipe [0]; 1621 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 1622 OUTPUT:
1953 RETVAL 1623 RETVAL
1954 1624
1955int 1625int
1956poll_cb(...) 1626poll_cb (...)
1957 PROTOTYPE: 1627 PROTOTYPE:
1958 CODE: 1628 CODE:
1959 RETVAL = poll_cb (); 1629 RETVAL = poll_cb ();
1960 OUTPUT: 1630 OUTPUT:
1961 RETVAL 1631 RETVAL
1962 1632
1963void 1633void
1964poll_wait() 1634poll_wait ()
1965 PROTOTYPE:
1966 CODE: 1635 CODE:
1967 poll_wait (); 1636 poll_wait ();
1968 1637
1969void
1970setsig (int signum = SIGIO)
1971 PROTOTYPE: ;$
1972 CODE:
1973{
1974 if (block_sig_level)
1975 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1976
1977 X_LOCK (reslock);
1978 main_tid = pthread_self ();
1979 main_sig = signum;
1980 X_UNLOCK (reslock);
1981
1982 if (main_sig && npending)
1983 pthread_kill (main_tid, main_sig);
1984}
1985
1986void
1987aio_block (SV *cb)
1988 PROTOTYPE: &
1989 PPCODE:
1990{
1991 int count;
1992
1993 block_sig ();
1994 PUSHMARK (SP);
1995 PUTBACK;
1996 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1997 SPAGAIN;
1998 unblock_sig ();
1999
2000 if (SvTRUE (ERRSV))
2001 croak (0);
2002
2003 XSRETURN (count);
2004}
2005
2006int 1638int
2007nreqs() 1639nreqs ()
2008 PROTOTYPE:
2009 CODE: 1640 CODE:
2010 RETVAL = nreqs; 1641 RETVAL = eio_nreqs ();
2011 OUTPUT: 1642 OUTPUT:
2012 RETVAL 1643 RETVAL
2013 1644
2014int 1645int
2015nready() 1646nready ()
2016 PROTOTYPE:
2017 CODE: 1647 CODE:
2018 RETVAL = get_nready (); 1648 RETVAL = eio_nready ();
2019 OUTPUT: 1649 OUTPUT:
2020 RETVAL 1650 RETVAL
2021 1651
2022int 1652int
2023npending() 1653npending ()
2024 PROTOTYPE:
2025 CODE: 1654 CODE:
2026 RETVAL = get_npending (); 1655 RETVAL = eio_npending ();
2027 OUTPUT: 1656 OUTPUT:
2028 RETVAL 1657 RETVAL
2029 1658
2030int 1659int
2031nthreads() 1660nthreads ()
2032 PROTOTYPE:
2033 CODE: 1661 CODE:
2034 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1662 RETVAL = eio_nthreads ();
2035 RETVAL = started;
2036 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2037 OUTPUT: 1663 OUTPUT:
2038 RETVAL 1664 RETVAL
2039 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
2040PROTOTYPES: 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}
2041 1822
2042MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1823MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2043 1824
2044void 1825void
2045cancel (aio_req_ornot req) 1826cancel (aio_req_ornot req)
2046 CODE: 1827 CODE:
2047 req_cancel (req); 1828 eio_cancel (req);
2048 1829
2049void 1830void
2050cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1831cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2051 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
2052 SvREFCNT_dec (req->callback); 1841 SvREFCNT_dec (req->callback);
2053 req->callback = newSVsv (callback); 1842 req->callback = SvREFCNT_inc (cb_cv);
1843 }
1844}
2054 1845
2055MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1846MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2056 1847
2057void 1848void
2058add (aio_req grp, ...) 1849add (aio_req grp, ...)
2059 PPCODE: 1850 PPCODE:
2060{ 1851{
2061 int i; 1852 int i;
2062 aio_req req;
2063
2064 if (main_sig && !block_sig_level)
2065 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2066 1853
2067 if (grp->int1 == 2) 1854 if (grp->int1 == 2)
2068 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");
2069 1856
2070 for (i = 1; i < items; ++i ) 1857 for (i = 1; i < items; ++i )
2071 { 1858 {
1859 aio_req req;
1860
2072 if (GIMME_V != G_VOID) 1861 if (GIMME_V != G_VOID)
2073 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1862 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2074 1863
2075 req = SvAIO_REQ (ST (i)); 1864 req = SvAIO_REQ (ST (i));
2076 1865
2077 if (req) 1866 if (req)
2078 { 1867 eio_grp_add (grp, req);
2079 ++grp->size;
2080 req->grp = grp;
2081
2082 req->grp_prev = 0;
2083 req->grp_next = grp->grp_first;
2084
2085 if (grp->grp_first)
2086 grp->grp_first->grp_prev = req;
2087
2088 grp->grp_first = req;
2089 }
2090 } 1868 }
2091} 1869}
2092 1870
2093void 1871void
2094cancel_subs (aio_req_ornot req) 1872cancel_subs (aio_req_ornot req)
… …
2103 AV *av; 1881 AV *av;
2104 1882
2105 grp->errorno = errno; 1883 grp->errorno = errno;
2106 1884
2107 av = newAV (); 1885 av = newAV ();
1886 av_extend (av, items - 1);
2108 1887
2109 for (i = 1; i < items; ++i ) 1888 for (i = 1; i < items; ++i )
2110 av_push (av, newSVsv (ST (i))); 1889 av_push (av, newSVsv (ST (i)));
2111 1890
2112 SvREFCNT_dec (grp->sv1); 1891 SvREFCNT_dec (grp->sv1);
… …
2119 grp->errorno = errorno; 1898 grp->errorno = errorno;
2120 1899
2121void 1900void
2122limit (aio_req grp, int limit) 1901limit (aio_req grp, int limit)
2123 CODE: 1902 CODE:
2124 grp->int2 = limit; 1903 eio_grp_limit (grp, limit);
2125 aio_grp_feed (grp);
2126 1904
2127void 1905void
2128feed (aio_req grp, SV *callback=&PL_sv_undef) 1906feed (aio_req grp, SV *callback=&PL_sv_undef)
2129 CODE: 1907 CODE:
2130{ 1908{
2131 SvREFCNT_dec (grp->sv2); 1909 SvREFCNT_dec (grp->sv2);
2132 grp->sv2 = newSVsv (callback); 1910 grp->sv2 = newSVsv (callback);
1911 grp->feed = aio_grp_feed;
2133 1912
2134 if (grp->int2 <= 0) 1913 if (grp->int2 <= 0)
2135 grp->int2 = 2; 1914 grp->int2 = 2;
2136 1915
2137 aio_grp_feed (grp); 1916 eio_grp_limit (grp, grp->int2);
2138} 1917}
2139 1918

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