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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 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/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
18#ifdef _WIN32 42#ifdef _WIN32
19 43
20# define SIGIO 0 44 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 45
22#undef malloc 46 #undef malloc
23#undef free 47 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 48 #undef open
27# undef read 49 #undef read
28# undef write 50 #undef write
29# undef send 51 #undef send
30# undef recv 52 #undef recv
31# undef stat 53 #undef stat
54 #undef lstat
32# undef fstat 55 #undef fstat
33# define lstat stat
34# undef truncate 56 #undef truncate
35# undef ftruncate 57 #undef ftruncate
36# undef open 58 #undef open
59 #undef link
37# undef close 60 #undef close
38# undef unlink 61 #undef unlink
62 #undef mkdir
39# undef rmdir 63 #undef rmdir
40# undef rename 64 #undef rename
41# undef lseek 65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
42 75
43# define chown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 77 #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 78
57#else 79#else
58 80
59# include "autoconf/config.h"
60# include <sys/time.h> 81 #include <sys/time.h>
61# include <sys/select.h> 82 #include <sys/select.h>
62# include <unistd.h> 83 #include <unistd.h>
63# include <utime.h> 84 #include <utime.h>
64# include <signal.h> 85 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 86
67#endif 87 #define EIO_STRUCT_STAT Stat_t
68 88
69#if HAVE_SENDFILE 89#endif
70# if __linux 90
71# include <sys/sendfile.h> 91/*****************************************************************************/
72# elif __freebsd 92
73# include <sys/socket.h> 93#if __GNUC__ >= 3
74# include <sys/uio.h> 94# define expect(expr,value) __builtin_expect ((expr),(value))
75# elif __hpux 95#else
76# include <sys/socket.h> 96# define expect(expr,value) (expr)
77# elif __solaris /* not yet */ 97#endif
78# include <sys/sendfile.h> 98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
79# else 140# else
80# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 142# endif
82#endif 143#endif
83 144
84/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 146#include "def0.h"
86 147
87/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
88#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
91 157
92/* buffer size for various temporary buffers */ 158#ifndef PAGESIZE
93#define AIO_BUFSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
94 161
95/* use NV for 32 bit perls as it allows larger offsets */ 162/*****************************************************************************/
96#if IVSIZE >= 8 163
97# define SvVAL64 SvIV 164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (fiemap->fm_mapped_extents < count)
200 /* either autosizing succeeded,
201 * or the file had no extents
202 * or we luckily had enough space */
203 break;
204
205 /* some kernels overwrite fm_length, so just reset everything */
206 fiemap->fm_start = req->offs;
207 fiemap->fm_length = req->size;
208 fiemap->fm_flags = req->int2;
209 fiemap->fm_extent_count = 0;
210
211 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212 return;
213
214 /* to work around a kernel bug, we allocate one more */
215 count = fiemap->fm_mapped_extents + 1;
216
217 free (fiemap);
218 }
219
220 req->result = 0;
221
98#else 222#else
99# define SvVAL64 SvNV 223 errno = ENOSYS;
100#endif 224#endif
225}
101 226
102#define dBUF \ 227/*****************************************************************************/
103 char *aio_buf; \
104 X_LOCK (wrklock); \
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
106 X_UNLOCK (wrklock); \
107 if (!aio_buf) \
108 return -1;
109
110typedef SV SV8; /* byte-sv, used for argument-checking */
111 228
112enum { 229enum {
113 REQ_QUIT, 230 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 231};
129 232
130#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132
133typedef struct aio_cb
134{
135 struct aio_cb *volatile next;
136
137 SV *callback;
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150
151 unsigned char flags;
152 unsigned char pri;
153
154 SV *self; /* the perl counterpart of this request, if any */
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
156} aio_cb;
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req; 233typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 234typedef eio_req *aio_req_ornot;
235typedef eio_wd aio_wd;
166 236
167enum { 237static SV *on_next_submit;
168 PRI_MIN = -4, 238static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 239static int max_outstanding;
170 240
171 DEFAULT_PRI = 0, 241static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 242
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 243static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 244static void req_cancel (aio_req req);
376 245
246static void
247want_poll (void)
248{
249 /* write a dummy byte to the pipe so fh becomes ready */
250 s_epipe_signal (&respipe);
251}
252
253static void
254done_poll (void)
255{
256 /* read any signals sent by the worker threads */
257 s_epipe_drain (&respipe);
258}
259
377/* must be called at most once */ 260/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 261static SV *
262req_sv (aio_req req, HV *stash)
379{ 263{
380 if (!req->self) 264 if (!req->self)
381 { 265 {
382 req->self = (SV *)newHV (); 266 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 267 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 268 }
385 269
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 270 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 271}
388 272
389static aio_req SvAIO_REQ (SV *sv) 273static SV *
274newSVaio_wd (aio_wd wd)
275{
276 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
277}
278
279static aio_req
280SvAIO_REQ (SV *sv)
390{ 281{
391 MAGIC *mg; 282 MAGIC *mg;
392 283
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 284 if (!SvROK (sv)
285 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
286 || (SvSTASH (SvRV (sv)) != aio_grp_stash
287 && SvSTASH (SvRV (sv)) != aio_req_stash
288 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 289 croak ("object of class IO::AIO::REQ expected");
395 290
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 291 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 292
398 return mg ? (aio_req)mg->mg_ptr : 0; 293 return mg ? (aio_req)mg->mg_ptr : 0;
399} 294}
400 295
296static aio_wd
297SvAIO_WD (SV *sv)
298{
299 if (!SvROK (sv)
300 || SvTYPE (SvRV (sv)) != SVt_PVMG
301 || SvSTASH (SvRV (sv)) != aio_wd_stash)
302 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
303
304 return (aio_wd)(long)SvIVX (SvRV (sv));
305}
306
307static void
401static void aio_grp_feed (aio_req grp) 308aio_grp_feed (aio_req grp)
402{ 309{
403 block_sig (); 310 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 311 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 312 dSP;
412 313
413 ENTER; 314 ENTER;
414 SAVETMPS; 315 SAVETMPS;
415 PUSHMARK (SP); 316 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 317 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 318 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 319 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 320 SPAGAIN;
420 FREETMPS; 321 FREETMPS;
421 LEAVE; 322 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 323 }
432
433 unblock_sig ();
434} 324}
435 325
436static void aio_grp_dec (aio_req grp) 326static void
327req_submit (eio_req *req)
437{ 328{
438 --grp->size; 329 eio_submit (req);
439 330
440 /* call feeder, if applicable */ 331 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 332 {
446 block_sig (); 333 dSP;
334 SV *cb = sv_2mortal (on_next_submit);
447 335
448 if (!req_invoke (grp)) 336 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 337
455 req_destroy (grp); 338 PUSHMARK (SP);
456 unblock_sig (); 339 PUTBACK;
340 call_sv (cb, G_DISCARD | G_EVAL);
457 } 341 }
458} 342}
459 343
344static int
460static int req_invoke (aio_req req) 345req_invoke (eio_req *req)
461{ 346{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 347 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 348 SvREADONLY_off (req->sv2);
466 349
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 350 if (!EIO_CANCELLED (req) && req->callback)
468 { 351 {
352 dSP;
353 static SV *sv_result_cache; /* caches the result integer SV */
354 SV *sv_result;
355
469 ENTER; 356 ENTER;
470 SAVETMPS; 357 SAVETMPS;
471 PUSHMARK (SP); 358 PUSHMARK (SP);
472 EXTEND (SP, 1); 359 EXTEND (SP, 1);
473 360
361 /* do not recreate the result IV from scratch each time */
362 if (expect_true (sv_result_cache))
363 {
364 sv_result = sv_result_cache; sv_result_cache = 0;
365 SvIV_set (sv_result, req->result);
366 SvIOK_only (sv_result);
367 }
368 else
369 {
370 sv_result = newSViv (req->result);
371 SvREADONLY_on (sv_result);
372 }
373
474 switch (req->type) 374 switch (req->type)
475 { 375 {
376 case EIO_WD_OPEN:
377 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
378 break;
379
476 case REQ_READDIR: 380 case EIO_READDIR:
477 { 381 {
478 SV *rv = &PL_sv_undef; 382 SV *rv = &PL_sv_undef;
479 383
480 if (req->result >= 0) 384 if (req->result >= 0)
481 { 385 {
482 int i; 386 int i;
483 char *buf = req->ptr2; 387 char *names = (char *)req->ptr2;
388 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 389 AV *av = newAV ();
485 390
486 av_extend (av, req->result - 1); 391 av_extend (av, req->result - 1);
487 392
488 for (i = 0; i < req->result; ++i) 393 for (i = 0; i < req->result; ++i)
489 { 394 {
490 SV *sv = newSVpv (buf, 0); 395 if (req->int1 & EIO_READDIR_DENTS)
396 {
397 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 398
399 if (req->int1 & EIO_READDIR_CUSTOM2)
400 {
401 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
402 AV *avent = newAV ();
403
404 av_extend (avent, 2);
405
406 if (!sv_type [ent->type])
407 {
408 sv_type [ent->type] = newSViv (ent->type);
409 SvREADONLY_on (sv_type [ent->type]);
410 }
411
412 av_store (avent, 0, namesv);
413 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
414 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
415
416 av_store (av, i, newRV_noinc ((SV *)avent));
417 }
418 else
492 av_store (av, i, sv); 419 av_store (av, i, namesv);
420
421 ++ent;
422 }
423 else
424 {
425 SV *name = newSVpv (names, 0);
426 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 427 names += SvCUR (name) + 1;
428 }
494 } 429 }
495 430
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 431 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 432 }
498 433
499 PUSHs (rv); 434 PUSHs (rv);
435
436 if (req->int1 & EIO_READDIR_CUSTOM1)
437 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 438 }
501 break; 439 break;
502 440
503 case REQ_OPEN: 441 case EIO_OPEN:
504 { 442 {
505 /* convert fd to fh */ 443 /* convert fd to fh */
506 SV *fh; 444 SV *fh = &PL_sv_undef;
507 445
508 PUSHs (sv_2mortal (newSViv (req->result))); 446 if (req->result >= 0)
509 PUTBACK; 447 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 448 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 449 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
450 char sym [64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
454 gv_init (gv, aio_stash, sym, symlen, 0);
512 455
513 fh = POPs; 456 symlen = snprintf (
514 PUSHMARK (SP); 457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 (int)req->result
462 );
463
464 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
465 fh = (SV *)gv;
466 }
467
515 XPUSHs (fh); 468 PUSHs (fh);
516 } 469 }
517 break; 470 break;
518 471
472 case EIO_STATVFS:
473 case EIO_FSTATVFS:
474 {
475 SV *rv = &PL_sv_undef;
476
477#ifndef _WIN32
478 if (req->result >= 0)
479 {
480 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
481 HV *hv = newHV ();
482
483 rv = sv_2mortal (newRV_noinc ((SV *)hv));
484
485 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
486 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
487 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
488 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
489 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
490 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
491 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
492 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
493 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
494 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
495 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
496 }
497#endif
498
499 PUSHs (rv);
500 }
501
502 break;
503
519 case REQ_GROUP: 504 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 505 req->int1 = 2; /* mark group as finished */
521 506
522 if (req->sv1) 507 if (req->sv1)
523 { 508 {
524 int i; 509 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 513 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 514 PUSHs (*av_fetch (av, i, 0));
530 } 515 }
531 break; 516 break;
532 517
533 case REQ_NOP: 518 case EIO_NOP:
534 case REQ_BUSY: 519 case EIO_BUSY:
535 break; 520 break;
536 521
537 case REQ_READLINK: 522 case EIO_READLINK:
523 case EIO_REALPATH:
538 if (req->result > 0) 524 if (req->result > 0)
525 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
526 break;
527
528 case EIO_STAT:
529 case EIO_LSTAT:
530 case EIO_FSTAT:
531 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
532
533 if (!(PL_laststatval = req->result))
534 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
535 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
536
537 PUSHs (sv_result);
538 break;
539
540 case EIO_SEEK:
541 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
542 break;
543
544 case EIO_READ:
545 {
546 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
547 *SvEND (req->sv2) = 0;
548 SvPOK_only (req->sv2);
549 SvSETMAGIC (req->sv2);
550 PUSHs (sv_result);
551 }
552 break;
553
554 case EIO_CUSTOM:
555 if (req->feed == fiemap)
539 { 556 {
540 SvCUR_set (req->sv2, req->result); 557#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 558 if (!req->result)
559 {
560 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
561
562 if (fiemap->fm_extent_count)
563 {
564 AV *av = newAV ();
565 int i;
566
567 while (fiemap->fm_mapped_extents)
568 {
569 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
570 AV *ext_av = newAV ();
571
572 av_store (ext_av, 3, newSVuv (extent->fe_flags));
573 av_store (ext_av, 2, newSVval64 (extent->fe_length));
574 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
575 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
576
577 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
578 }
579
580 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
581 }
582 else
583 {
584 SvIV_set (sv_result, fiemap->fm_mapped_extents);
585 PUSHs (sv_result);
586 }
587 }
588#endif
543 } 589 }
590 else
591 PUSHs (sv_result);
544 break; 592 break;
545 593
546 case REQ_STAT: 594 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 595 if (req->result > 0)
548 case REQ_FSTAT: 596 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 597 /* FALLTHROUGH */
550 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result)));
553 break;
554
555 case REQ_READ:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result)));
559 break;
560 598
561 default: 599 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 600 PUSHs (sv_result);
563 break; 601 break;
564 } 602 }
565 603
566 errno = req->errorno; 604 errno = req->errorno;
567 605
568 PUTBACK; 606 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 607 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 608 SPAGAIN;
609
610 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
611 SvREFCNT_dec (sv_result);
612 else
613 sv_result_cache = sv_result;
571 614
572 FREETMPS; 615 FREETMPS;
573 LEAVE; 616 LEAVE;
617
618 PUTBACK;
574 } 619 }
575 620
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 621 return !!SvTRUE (ERRSV);
591} 622}
592 623
624static void
593static void req_destroy (aio_req req) 625req_destroy (aio_req req)
594{ 626{
595 if (req->self) 627 if (req->self)
596 { 628 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 629 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 630 SvREFCNT_dec (req->self);
599 } 631 }
600 632
601 SvREFCNT_dec (req->sv1); 633 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 634 SvREFCNT_dec (req->sv2);
635 SvREFCNT_dec (req->sv3);
636 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 637 SvREFCNT_dec (req->callback);
604 638
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 639 free (req);
609} 640}
610 641
642static void
611static void req_cancel_subs (aio_req grp) 643req_cancel_subs (aio_req grp)
612{ 644{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 645 if (grp->type != EIO_GROUP)
616 return; 646 return;
617 647
618 SvREFCNT_dec (grp->sv2); 648 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 649 grp->sv2 = 0;
620 650
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 651 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 652}
624 653
625static void req_cancel (aio_req req) 654static void ecb_cold
655create_respipe (void)
626{ 656{
627 req->flags |= FLAG_CANCELLED; 657 if (s_epipe_renew (&respipe))
628 658 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 659}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637 660
638static void 661static void
639create_pipe (int fd[2]) 662poll_wait (void)
640{ 663{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655}
656
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 664 while (eio_nreqs ())
757 { 665 {
758 int size; 666 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 667
668 X_LOCK (reslock);
760 size = res_queue.size; 669 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 670 X_UNLOCK (reslock);
762 671
763 if (size) 672 if (size)
764 return; 673 return;
765 674
766 maybe_start_thread (); 675 etp_maybe_start_thread ();
767 676
768 FD_ZERO (&rfd); 677 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 678 }
773} 679}
774 680
775static int poll_cb () 681static int
682poll_cb (void)
776{ 683{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 684 for (;;)
790 { 685 {
791 for (;;) 686 int res = eio_poll ();
687
688 if (res > 0)
689 croak (0);
690
691 if (!max_outstanding || max_outstanding > eio_nreqs ())
692 return res;
693
694 poll_wait ();
695 }
696}
697
698static void ecb_cold
699reinit (void)
700{
701 create_respipe ();
702
703 if (eio_init (want_poll, done_poll) < 0)
704 croak ("IO::AIO: unable to initialise eio library");
705}
706
707/*****************************************************************************/
708
709#if !_POSIX_MAPPED_FILES
710# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
711# define munmap(addr,length) EIO_ENOSYS ()
712#endif
713
714#if !_POSIX_MEMORY_PROTECTION
715# define mprotect(addr,len,prot) EIO_ENOSYS ()
716# define PROT_NONE 0
717# define PROT_WRITE 0
718# define MAP_PRIVATE 0
719# define MAP_SHARED 0
720# define MAP_FIXED 0
721#endif
722
723#define MMAP_MAGIC PERL_MAGIC_ext
724
725static int ecb_cold
726mmap_free (pTHX_ SV *sv, MAGIC *mg)
727{
728 int old_errno = errno;
729 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
730 errno = old_errno;
731
732 mg->mg_obj = 0; /* just in case */
733
734 SvREADONLY_off (sv);
735
736 if (SvPVX (sv) != mg->mg_ptr)
737 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
738
739 SvCUR_set (sv, 0);
740 SvPVX (sv) = 0;
741 SvOK_off (sv);
742
743 return 0;
744}
745
746static MGVTBL mmap_vtbl = {
747 0, 0, 0, 0, mmap_free
748};
749
750/*****************************************************************************/
751
752static SV *
753get_cb (SV *cb_sv)
754{
755 SvGETMAGIC (cb_sv);
756 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
757}
758
759static aio_req ecb_noinline
760dreq (SV *callback)
761{
762 SV *cb_cv;
763 aio_req req;
764 int req_pri = next_pri;
765 next_pri = EIO_PRI_DEFAULT;
766
767 cb_cv = get_cb (callback);
768
769 req = calloc (sizeof (*req), 1);
770 if (!req)
771 croak ("out of memory during eio_req allocation");
772
773 req->callback = SvREFCNT_inc (cb_cv);
774 req->pri = req_pri;
775
776 return req;
777}
778
779#define dREQ \
780 aio_req req = dreq (callback); \
781
782#define REQ_SEND \
783 PUTBACK; \
784 req_submit (req); \
785 SPAGAIN; \
786 \
787 if (GIMME_V != G_VOID) \
788 XPUSHs (req_sv (req, aio_req_stash));
789
790ecb_inline void
791req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
792{
793 if (expect_false (SvROK (path)))
794 {
795 SV *rv = SvRV (path);
796 SV *wdob;
797
798 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 799 {
793 maybe_start_thread (); 800 path = AvARRAY (rv)[1];
801 wdob = AvARRAY (rv)[0];
794 802
795 X_LOCK (reslock); 803 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 804 {
800 --npending; 805 *wd = SvAIO_WD (wdob);
801 806 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 } 807 }
823 else 808 else
824 { 809 *wd = EIO_INVALID_WD;
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0);
830 }
831
832 count++;
833 }
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 } 810 }
811 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
812 {
813 *wd = (aio_wd)(long)SvIVX (rv);
814 *wdsv = SvREFCNT_inc_NN (rv);
815 *ptr = ".";
816 return; /* path set to "." */
817 }
818 else
819 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
820 }
848 821
849 if (nreqs <= max_outstanding) 822 *pathsv = newSVsv (path);
823 *ptr = SvPVbyte_nolen (*pathsv);
824}
825
826static void ecb_noinline
827req_set_path1 (aio_req req, SV *path)
828{
829 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
830}
831
832static void ecb_noinline
833req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
834{
835 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
836
837 switch (SvTYPE (rv))
838 {
839 case SVt_PVIO:
840 case SVt_PVLV:
841 case SVt_PVGV:
842 req->type = type_fh;
843 req->sv1 = newSVsv (fh_or_path);
844 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 845 break;
851 846
852 poll_wait (); 847 default:
853 848 req->type = type_path;
854 ++maxreqs; 849 req_set_path1 (req, fh_or_path);
850 break;
855 } 851 }
856
857 unblock_sig ();
858 return count;
859} 852}
860 853
861/*****************************************************************************/ 854XS(boot_IO__AIO) ecb_cold;
862/* work around various missing functions */
863 855
864#if !HAVE_PREADWRITE
865# define pread aio_pread
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{
877 ssize_t res;
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888}
889
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
891{
892 ssize_t res;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082}
1083
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144
1145/*****************************************************************************/
1146
1147X_THREAD_PROC (aio_proc)
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 PerlSock_closesocket (respipe [0]);
1376 PerlSock_closesocket (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381}
1382
1383#define dREQ \
1384 aio_req req; \
1385 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \
1387 \
1388 if (SvOK (callback) && !SvROK (callback)) \
1389 croak ("callback must be undef or of reference type"); \
1390 \
1391 Newz (0, req, 1, aio_cb); \
1392 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \
1394 \
1395 req->callback = newSVsv (callback); \
1396 req->pri = req_pri
1397
1398#define REQ_SEND \
1399 req_send (req); \
1400 \
1401 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403
1404MODULE = IO::AIO PACKAGE = IO::AIO 856MODULE = IO::AIO PACKAGE = IO::AIO
1405 857
1406PROTOTYPES: ENABLE 858PROTOTYPES: ENABLE
1407 859
1408BOOT: 860BOOT:
1409{ 861{
862 static const struct {
863 const char *name;
864 IV iv;
865 } *civ, const_iv[] = {
866# define const_niv(name, value) { # name, (IV) value },
867# define const_iv(name) { # name, (IV) name },
868# define const_eio(name) { # name, (IV) EIO_ ## name },
869
870 /* you have to re-run ./gendef0 after adding/Removing any constants here */
871
872 const_iv (ENOSYS)
873 const_iv (EXDEV)
874 const_iv (EBADR)
875
876 const_iv (O_RDONLY)
877 const_iv (O_WRONLY)
878 const_iv (O_RDWR)
879 const_iv (O_CREAT)
880 const_iv (O_TRUNC)
881 const_iv (O_EXCL)
882 const_iv (O_APPEND)
883
884 const_iv (O_ASYNC)
885 const_iv (O_DIRECT)
886 const_iv (O_NOATIME)
887
888 const_iv (O_CLOEXEC)
889 const_iv (O_NOCTTY)
890 const_iv (O_NOFOLLOW)
891 const_iv (O_NONBLOCK)
892 const_iv (O_EXEC)
893 const_iv (O_SEARCH)
894 const_iv (O_DIRECTORY)
895 const_iv (O_DSYNC)
896 const_iv (O_RSYNC)
897 const_iv (O_SYNC)
898 const_iv (O_TTY_INIT)
899
900 const_iv (S_IFIFO)
901 const_iv (S_IFCHR)
902 const_iv (S_IFBLK)
903 const_iv (S_IFLNK)
904 const_iv (S_IFREG)
905 const_iv (S_IFDIR)
906 const_iv (S_IFWHT)
907 const_iv (S_IFSOCK)
908 const_iv (S_IFMT)
909
910 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
911 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
912 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
913 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
914 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
915 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
916
917 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
918 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
919 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
920 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
921 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
922
923 const_iv (ST_RDONLY)
924 const_iv (ST_NOSUID)
925 const_iv (ST_NODEV)
926 const_iv (ST_NOEXEC)
927 const_iv (ST_SYNCHRONOUS)
928 const_iv (ST_MANDLOCK)
929 const_iv (ST_WRITE)
930 const_iv (ST_APPEND)
931 const_iv (ST_IMMUTABLE)
932 const_iv (ST_NOATIME)
933 const_iv (ST_NODIRATIME)
934 const_iv (ST_RELATIME)
935
936 const_iv (PROT_NONE)
937 const_iv (PROT_EXEC)
938 const_iv (PROT_READ)
939 const_iv (PROT_WRITE)
940
941 /*const_iv (MAP_FIXED)*/
942 const_iv (MAP_PRIVATE)
943 const_iv (MAP_SHARED)
944 const_iv (MAP_ANONYMOUS)
945
946 /* linuxish */
947 const_iv (MAP_HUGETLB)
948 const_iv (MAP_LOCKED)
949 const_iv (MAP_NORESERVE)
950 const_iv (MAP_POPULATE)
951 const_iv (MAP_NONBLOCK)
952
953 const_iv (FIEMAP_FLAG_SYNC)
954 const_iv (FIEMAP_FLAG_XATTR)
955 const_iv (FIEMAP_FLAGS_COMPAT)
956 const_iv (FIEMAP_EXTENT_LAST)
957 const_iv (FIEMAP_EXTENT_UNKNOWN)
958 const_iv (FIEMAP_EXTENT_DELALLOC)
959 const_iv (FIEMAP_EXTENT_ENCODED)
960 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
961 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
962 const_iv (FIEMAP_EXTENT_DATA_INLINE)
963 const_iv (FIEMAP_EXTENT_DATA_TAIL)
964 const_iv (FIEMAP_EXTENT_UNWRITTEN)
965 const_iv (FIEMAP_EXTENT_MERGED)
966 const_iv (FIEMAP_EXTENT_SHARED)
967
968 const_iv (SPLICE_F_MOVE)
969 const_iv (SPLICE_F_NONBLOCK)
970 const_iv (SPLICE_F_MORE)
971 const_iv (SPLICE_F_GIFT)
972
973 const_iv (SEEK_DATA)
974 const_iv (SEEK_HOLE)
975
976 /* libeio constants */
977 const_eio (SEEK_SET)
978 const_eio (SEEK_CUR)
979 const_eio (SEEK_END)
980
981 const_eio (MCL_FUTURE)
982 const_eio (MCL_CURRENT)
983
984 const_eio (MS_ASYNC)
985 const_eio (MS_INVALIDATE)
986 const_eio (MS_SYNC)
987
988 const_eio (MT_MODIFY)
989
990 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
991 const_eio (SYNC_FILE_RANGE_WRITE)
992 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
993
994 const_eio (FALLOC_FL_KEEP_SIZE)
995 const_eio (FALLOC_FL_PUNCH_HOLE)
996
997 const_eio (READDIR_DENTS)
998 const_eio (READDIR_DIRS_FIRST)
999 const_eio (READDIR_STAT_ORDER)
1000 const_eio (READDIR_FOUND_UNKNOWN)
1001
1002 const_eio (DT_UNKNOWN)
1003 const_eio (DT_FIFO)
1004 const_eio (DT_CHR)
1005 const_eio (DT_DIR)
1006 const_eio (DT_BLK)
1007 const_eio (DT_REG)
1008 const_eio (DT_LNK)
1009 const_eio (DT_SOCK)
1010 const_eio (DT_WHT)
1011 };
1012
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1013 aio_stash = gv_stashpv ("IO::AIO" , 1);
1014 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1015 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1016 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1017
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1018 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1019 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 1020
1425 X_COND_CHECK (reqwait); 1021 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 1022
1431 create_pipe (respipe); 1023 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1024}
1435 1025
1436void 1026void
1027reinit ()
1028 PROTOTYPE:
1029
1030void
1437max_poll_reqs (int nreqs) 1031max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1032 PROTOTYPE: $
1439 CODE: 1033 CODE:
1440 max_poll_reqs = nreqs; 1034 eio_set_max_poll_reqs (nreqs);
1441 1035
1442void 1036void
1443max_poll_time (double nseconds) 1037max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1038 PROTOTYPE: $
1445 CODE: 1039 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1040 eio_set_max_poll_time (nseconds);
1447 1041
1448void 1042void
1449min_parallel (int nthreads) 1043min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1044 PROTOTYPE: $
1459 CODE: 1045 CODE:
1460 set_max_idle (nthreads); 1046 eio_set_min_parallel (nthreads);
1461 1047
1462int 1048void
1463max_outstanding (int maxreqs) 1049max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1050 PROTOTYPE: $
1465 CODE: 1051 CODE:
1466 RETVAL = max_outstanding; 1052 eio_set_max_parallel (nthreads);
1053
1054void
1055max_idle (unsigned int nthreads)
1056 PROTOTYPE: $
1057 CODE:
1058 eio_set_max_idle (nthreads);
1059
1060void
1061idle_timeout (unsigned int seconds)
1062 PROTOTYPE: $
1063 CODE:
1064 eio_set_idle_timeout (seconds);
1065
1066void
1067max_outstanding (unsigned int maxreqs)
1068 PROTOTYPE: $
1069 CODE:
1467 max_outstanding = maxreqs; 1070 max_outstanding = maxreqs;
1468 OUTPUT: 1071
1469 RETVAL 1072void
1073aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1074 PPCODE:
1075{
1076 dREQ;
1077
1078 req->type = EIO_WD_OPEN;
1079 req_set_path1 (req, pathname);
1080
1081 REQ_SEND;
1082}
1470 1083
1471void 1084void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1085aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1086 PPCODE:
1475{ 1087{
1476 dREQ; 1088 dREQ;
1477 1089
1478 req->type = REQ_OPEN; 1090 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1091 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1092 req->int1 = flags;
1482 req->mode = mode; 1093 req->int2 = mode;
1483 1094
1484 REQ_SEND; 1095 REQ_SEND;
1485} 1096}
1486 1097
1487void 1098void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1099aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1100 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1101 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1102 aio_fdatasync = EIO_FDATASYNC
1103 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1104 PPCODE:
1495{ 1105{
1106 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1107 dREQ;
1497 1108
1498 req->type = ix; 1109 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1110 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1111 req->int1 = fd;
1501 1112
1502 REQ_SEND (req); 1113 REQ_SEND;
1114}
1115
1116void
1117aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1118 PPCODE:
1119{
1120 int fd = s_fileno_croak (fh, 0);
1121 dREQ;
1122
1123 req->type = EIO_SYNC_FILE_RANGE;
1124 req->sv1 = newSVsv (fh);
1125 req->int1 = fd;
1126 req->offs = offset;
1127 req->size = nbytes;
1128 req->int2 = flags;
1129
1130 REQ_SEND;
1131}
1132
1133void
1134aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1135 PPCODE:
1136{
1137 int fd = s_fileno_croak (fh, 0);
1138 dREQ;
1139
1140 req->type = EIO_FALLOCATE;
1141 req->sv1 = newSVsv (fh);
1142 req->int1 = fd;
1143 req->int2 = mode;
1144 req->offs = offset;
1145 req->size = len;
1146
1147 REQ_SEND;
1148}
1149
1150void
1151aio_close (SV *fh, SV *callback=&PL_sv_undef)
1152 PPCODE:
1153{
1154 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1155 int fd = s_fileno_croak (fh, 0);
1156 dREQ;
1157
1158 if (expect_false (close_fd < 0))
1159 {
1160 int pipefd [2];
1161
1162 if (
1163#ifdef _WIN32
1164 _pipe (pipefd, 1, _O_BINARY) < 0
1165#else
1166 pipe (pipefd) < 0
1167 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1168#endif
1169 || close (pipefd [1]) < 0
1170 )
1171 abort (); /*D*/
1172
1173 close_fd = pipefd [0];
1174 }
1175
1176 req->type = EIO_DUP2;
1177 req->int1 = close_fd;
1178 req->sv2 = newSVsv (fh);
1179 req->int2 = fd;
1180
1181 REQ_SEND;
1182}
1183
1184void
1185aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1186 PPCODE:
1187{
1188 int fd = s_fileno_croak (fh, 0);
1189 dREQ;
1190
1191 req->type = EIO_SEEK;
1192 req->sv1 = newSVsv (fh);
1193 req->int1 = fd;
1194 req->offs = SvVAL64 (offset);
1195 req->int2 = whence;
1196
1197 REQ_SEND;
1503} 1198}
1504 1199
1505void 1200void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1201aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1202 ALIAS:
1508 aio_read = REQ_READ 1203 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1204 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1205 PPCODE:
1512{ 1206{
1513 STRLEN svlen; 1207 STRLEN svlen;
1208 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1209 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1210 UV len = SvUV (length);
1516 1211
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1212 if (dataoffset < 0)
1521 dataoffset += svlen; 1213 dataoffset += svlen;
1522 1214
1523 if (dataoffset < 0 || dataoffset > svlen) 1215 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1216 croak ("dataoffset outside of data scalar");
1525 1217
1526 if (ix == REQ_WRITE) 1218 if (ix == EIO_WRITE)
1527 { 1219 {
1528 /* write: check length and adjust. */ 1220 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1221 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1222 len = svlen - dataoffset;
1531 } 1223 }
1532 else 1224 else
1533 { 1225 {
1534 /* read: grow scalar as necessary */ 1226 /* read: check type and grow scalar as necessary */
1227 SvUPGRADE (data, SVt_PV);
1228 if (SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1229 svptr = SvGROW (data, len + dataoffset + 1);
1230 else if (SvCUR (data) < len + dataoffset)
1231 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1232 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1233
1541 { 1234 {
1542 dREQ; 1235 dREQ;
1543 1236
1544 req->type = ix; 1237 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1238 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1239 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1240 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1241 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1242 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1243 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1244 req->stroffset = dataoffset;
1553 1245
1554 if (!SvREADONLY (data)) 1246 if (!SvREADONLY (data))
1555 { 1247 {
1556 SvREADONLY_on (data); 1248 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1252 REQ_SEND;
1561 } 1253 }
1562} 1254}
1563 1255
1564void 1256void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1257aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1258 ALIAS:
1259 aio_readlink = EIO_READLINK
1260 aio_realpath = EIO_REALPATH
1567 PPCODE: 1261 PPCODE:
1568{ 1262{
1569 SV *data;
1570 dREQ; 1263 dREQ;
1571 1264
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1265 req->type = ix;
1576 req->sv1 = newSVsv (path); 1266 req_set_path1 (req, pathname);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1267
1581 REQ_SEND; 1268 REQ_SEND;
1582} 1269}
1583 1270
1584void 1271void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1272aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1273 PPCODE:
1588{ 1274{
1275 int ifd = s_fileno_croak (in_fh , 0);
1276 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1277 dREQ;
1590 1278
1591 req->type = REQ_SENDFILE; 1279 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1280 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1281 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1282 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1283 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1284 req->offs = in_offset;
1597 req->size = length; 1285 req->size = length;
1598 1286
1599 REQ_SEND; 1287 REQ_SEND;
1600} 1288}
1601 1289
1602void 1290void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1291aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1292 PPCODE:
1606{ 1293{
1294 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1295 dREQ;
1608 1296
1609 req->type = REQ_READAHEAD; 1297 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1298 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1299 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1300 req->offs = offset;
1613 req->size = length; 1301 req->size = length;
1614 1302
1615 REQ_SEND; 1303 REQ_SEND;
1616} 1304}
1617 1305
1618void 1306void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1307aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1308 ALIAS:
1621 aio_stat = REQ_STAT 1309 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1310 aio_lstat = EIO_LSTAT
1311 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1312 PPCODE:
1624{ 1313{
1625 dREQ; 1314 dREQ;
1626 1315
1627 req->ptr2 = malloc (sizeof (Stat_t)); 1316 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path);
1636
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 }
1642 else
1643 {
1644 req->type = REQ_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 }
1647 1317
1648 REQ_SEND; 1318 REQ_SEND;
1649} 1319}
1320
1321UV
1322major (UV dev)
1323 ALIAS:
1324 minor = 1
1325 CODE:
1326 RETVAL = ix ? major (dev) : minor (dev);
1327 OUTPUT:
1328 RETVAL
1329
1330UV
1331makedev (UV maj, UV min)
1332 CODE:
1333 RETVAL = makedev (maj, min);
1334 OUTPUT:
1335 RETVAL
1650 1336
1651void 1337void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1338aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1339 PPCODE:
1654{ 1340{
1655 dREQ; 1341 dREQ;
1656 1342
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1343 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1344 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1345 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1346
1672 REQ_SEND; 1347 REQ_SEND;
1673} 1348}
1674 1349
1675void 1350void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1351aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1677 PPCODE: 1352 PPCODE:
1678{ 1353{
1679 dREQ; 1354 dREQ;
1680 1355
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1356 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1357 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1358
1695 REQ_SEND; 1359 REQ_SEND;
1696} 1360}
1697 1361
1698void 1362void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1363aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1700 PPCODE: 1364 PPCODE:
1701{ 1365{
1702 dREQ; 1366 dREQ;
1703 1367
1704 req->mode = mode; 1368 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1369 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1370
1718 REQ_SEND; 1371 REQ_SEND;
1719} 1372}
1720 1373
1721void 1374void
… …
1724{ 1377{
1725 dREQ; 1378 dREQ;
1726 1379
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1380 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1381 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1382 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730 1383
1731 if (SvPOK (fh_or_path)) 1384 REQ_SEND;
1732 { 1385}
1733 req->type = REQ_CHOWN; 1386
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1387void
1735 } 1388aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1736 else 1389 PPCODE:
1737 { 1390{
1738 req->type = REQ_FCHOWN; 1391 dREQ;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1392
1740 } 1393 req->type = EIO_READDIR;
1394 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1395
1396 if (flags & EIO_READDIR_DENTS)
1397 req->int1 |= EIO_READDIR_CUSTOM2;
1398
1399 req_set_path1 (req, pathname);
1400
1401 REQ_SEND;
1402}
1403
1404void
1405aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1406 PPCODE:
1407{
1408 dREQ;
1409
1410 req->type = EIO_MKDIR;
1411 req->int2 = mode;
1412 req_set_path1 (req, pathname);
1741 1413
1742 REQ_SEND; 1414 REQ_SEND;
1743} 1415}
1744 1416
1745void 1417void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1418aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1419 ALIAS:
1748 aio_unlink = REQ_UNLINK 1420 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1421 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1422 aio_readdir = EIO_READDIR
1751 PPCODE: 1423 PPCODE:
1752{ 1424{
1753 dREQ; 1425 dREQ;
1754 1426
1755 req->type = ix; 1427 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1428 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758
1759 REQ_SEND;
1760}
1761
1762void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772 1429
1773 REQ_SEND; 1430 REQ_SEND;
1774} 1431}
1775 1432
1776void 1433void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1434aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS: 1435 ALIAS:
1779 aio_link = REQ_LINK 1436 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1437 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1438 aio_rename = EIO_RENAME
1782 PPCODE: 1439 PPCODE:
1783{ 1440{
1441 eio_wd wd2 = 0;
1784 dREQ; 1442 dREQ;
1785 1443
1786 req->type = ix; 1444 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1445 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1446 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1447 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1448
1792 REQ_SEND; 1449 REQ_SEND;
1793} 1450}
1794 1451
1795void 1452void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1453aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE: 1454 PPCODE:
1798{ 1455{
1799 dREQ; 1456 dREQ;
1800 1457
1801 req->type = REQ_MKNOD; 1458 req->type = EIO_MKNOD;
1802 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 1459 req->int2 = (mode_t)mode;
1805 req->offs = dev; 1460 req->offs = dev;
1461 req_set_path1 (req, pathname);
1806 1462
1807 REQ_SEND; 1463 REQ_SEND;
1808} 1464}
1809 1465
1810void 1466void
1467aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1468 ALIAS:
1469 aio_mtouch = EIO_MTOUCH
1470 aio_msync = EIO_MSYNC
1471 PPCODE:
1472{
1473 STRLEN svlen;
1474 char *svptr = SvPVbyte (data, svlen);
1475 UV len = SvUV (length);
1476
1477 if (offset < 0)
1478 offset += svlen;
1479
1480 if (offset < 0 || offset > svlen)
1481 croak ("offset outside of scalar");
1482
1483 if (!SvOK (length) || len + offset > svlen)
1484 len = svlen - offset;
1485
1486 {
1487 dREQ;
1488
1489 req->type = ix;
1490 req->sv2 = SvREFCNT_inc (data);
1491 req->ptr2 = (char *)svptr + offset;
1492 req->size = len;
1493 req->int1 = flags;
1494
1495 REQ_SEND;
1496 }
1497}
1498
1499void
1500aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1501 PPCODE:
1502{
1503 STRLEN svlen;
1504 char *svptr = SvPVbyte (data, svlen);
1505 UV len = SvUV (length);
1506
1507 if (offset < 0)
1508 offset += svlen;
1509
1510 if (offset < 0 || offset > svlen)
1511 croak ("offset outside of scalar");
1512
1513 if (!SvOK (length) || len + offset > svlen)
1514 len = svlen - offset;
1515
1516 {
1517 dREQ;
1518
1519 req->type = EIO_MLOCK;
1520 req->sv2 = SvREFCNT_inc (data);
1521 req->ptr2 = (char *)svptr + offset;
1522 req->size = len;
1523
1524 REQ_SEND;
1525 }
1526}
1527
1528void
1529aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1530 PPCODE:
1531{
1532 dREQ;
1533
1534 req->type = EIO_MLOCKALL;
1535 req->int1 = flags;
1536
1537 REQ_SEND;
1538}
1539
1540void
1541aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 int fd = s_fileno_croak (fh, 0);
1545 dREQ;
1546
1547 req->type = EIO_CUSTOM;
1548 req->sv1 = newSVsv (fh);
1549 req->int1 = fd;
1550
1551 req->feed = fiemap;
1552#if HAVE_FIEMAP
1553 /* keep our fingers crossed that the next two types are 64 bit */
1554 req->offs = start;
1555 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1556 req->int2 = flags;
1557 req->int3 = SvOK (count) ? SvIV (count) : -1;
1558#endif
1559
1560 REQ_SEND;
1561}
1562
1563void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1564aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 1565 PPCODE:
1813{ 1566{
1814 dREQ; 1567 dREQ;
1815 1568
1816 req->type = REQ_BUSY; 1569 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1570 req->nv1 = delay < 0. ? 0. : delay;
1818 1571
1819 REQ_SEND; 1572 REQ_SEND;
1820} 1573}
1821 1574
1822void 1575void
1823aio_group (SV *callback=&PL_sv_undef) 1576aio_group (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1577 PPCODE:
1826{ 1578{
1827 dREQ; 1579 dREQ;
1828 1580
1829 req->type = REQ_GROUP; 1581 req->type = EIO_GROUP;
1830 1582
1831 req_send (req); 1583 req_submit (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1584 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1585}
1834 1586
1835void 1587void
1836aio_nop (SV *callback=&PL_sv_undef) 1588aio_nop (SV *callback=&PL_sv_undef)
1589 ALIAS:
1590 aio_nop = EIO_NOP
1591 aio_sync = EIO_SYNC
1837 PPCODE: 1592 PPCODE:
1838{ 1593{
1839 dREQ; 1594 dREQ;
1840 1595
1841 req->type = REQ_NOP; 1596 req->type = ix;
1842 1597
1843 REQ_SEND; 1598 REQ_SEND;
1844} 1599}
1845 1600
1846int 1601int
1847aioreq_pri (int pri = 0) 1602aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1603 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1604 RETVAL = next_pri;
1851 if (items > 0) 1605 if (items > 0)
1852 { 1606 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1607 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1608 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1609 next_pri = pri;
1856 } 1610 }
1857 OUTPUT: 1611 OUTPUT:
1858 RETVAL 1612 RETVAL
1859 1613
1860void 1614void
1861aioreq_nice (int nice = 0) 1615aioreq_nice (int nice = 0)
1862 CODE: 1616 CODE:
1863 nice = next_pri - nice; 1617 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1618 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1619 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1620 next_pri = nice;
1867 1621
1868void 1622void
1869flush () 1623flush ()
1870 PROTOTYPE:
1871 CODE: 1624 CODE:
1872 while (nreqs) 1625 while (eio_nreqs ())
1873 { 1626 {
1874 poll_wait (); 1627 poll_wait ();
1875 poll_cb (); 1628 poll_cb ();
1876 } 1629 }
1877 1630
1878int 1631int
1879poll() 1632poll ()
1880 PROTOTYPE:
1881 CODE: 1633 CODE:
1882 poll_wait (); 1634 poll_wait ();
1883 RETVAL = poll_cb (); 1635 RETVAL = poll_cb ();
1884 OUTPUT: 1636 OUTPUT:
1885 RETVAL 1637 RETVAL
1886 1638
1887int 1639int
1888poll_fileno() 1640poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1641 CODE:
1891 RETVAL = respipe [0]; 1642 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1643 OUTPUT:
1893 RETVAL 1644 RETVAL
1894 1645
1895int 1646int
1896poll_cb(...) 1647poll_cb (...)
1897 PROTOTYPE: 1648 PROTOTYPE:
1898 CODE: 1649 CODE:
1899 RETVAL = poll_cb (); 1650 RETVAL = poll_cb ();
1900 OUTPUT: 1651 OUTPUT:
1901 RETVAL 1652 RETVAL
1902 1653
1903void 1654void
1904poll_wait() 1655poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1656 CODE:
1907 poll_wait (); 1657 poll_wait ();
1908 1658
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1659int
1947nreqs() 1660nreqs ()
1948 PROTOTYPE:
1949 CODE: 1661 CODE:
1950 RETVAL = nreqs; 1662 RETVAL = eio_nreqs ();
1951 OUTPUT: 1663 OUTPUT:
1952 RETVAL 1664 RETVAL
1953 1665
1954int 1666int
1955nready() 1667nready ()
1956 PROTOTYPE:
1957 CODE: 1668 CODE:
1958 RETVAL = get_nready (); 1669 RETVAL = eio_nready ();
1959 OUTPUT: 1670 OUTPUT:
1960 RETVAL 1671 RETVAL
1961 1672
1962int 1673int
1963npending() 1674npending ()
1964 PROTOTYPE:
1965 CODE: 1675 CODE:
1966 RETVAL = get_npending (); 1676 RETVAL = eio_npending ();
1967 OUTPUT: 1677 OUTPUT:
1968 RETVAL 1678 RETVAL
1969 1679
1970int 1680int
1971nthreads() 1681nthreads ()
1972 PROTOTYPE:
1973 CODE: 1682 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1683 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1684 OUTPUT:
1978 RETVAL 1685 RETVAL
1979 1686
1687int
1688fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1689 CODE:
1690 RETVAL = posix_fadvise (fh, offset, length, advice);
1691 OUTPUT:
1692 RETVAL
1693
1694IV
1695sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1696 CODE:
1697 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1698 OUTPUT:
1699 RETVAL
1700
1701void
1702mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1703 PPCODE:
1704 sv_unmagic (scalar, MMAP_MAGIC);
1705{
1706 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1707 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1708 if (addr == (void *)-1)
1709 XSRETURN_NO;
1710
1711 sv_force_normal (scalar);
1712
1713 /* we store the length in mg_obj, as namlen is I32 :/ */
1714 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1715 ->mg_obj = (SV *)length;
1716
1717 SvUPGRADE (scalar, SVt_PV); /* nop... */
1718
1719 if (!(prot & PROT_WRITE))
1720 SvREADONLY_on (scalar);
1721
1722 if (SvLEN (scalar))
1723 Safefree (SvPVX (scalar));
1724
1725 SvPVX (scalar) = (char *)addr;
1726 SvCUR_set (scalar, length);
1727 SvLEN_set (scalar, 0);
1728 SvPOK_only (scalar);
1729
1730 XSRETURN_YES;
1731}
1732
1733void
1734munmap (SV *scalar)
1735 CODE:
1736 sv_unmagic (scalar, MMAP_MAGIC);
1737
1738int
1739madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1740 ALIAS:
1741 mprotect = 1
1742 CODE:
1743{
1744 STRLEN svlen;
1745 void *addr = SvPVbyte (scalar, svlen);
1746 size_t len = SvUV (length);
1747
1748 if (offset < 0)
1749 offset += svlen;
1750
1751 if (offset < 0 || offset > svlen)
1752 croak ("offset outside of scalar");
1753
1754 if (!SvOK (length) || len + offset > svlen)
1755 len = svlen - offset;
1756
1757 addr = (void *)(((intptr_t)addr) + offset);
1758 eio_page_align (&addr, &len);
1759
1760 switch (ix)
1761 {
1762 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1763 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1764 }
1765}
1766 OUTPUT:
1767 RETVAL
1768
1769int
1770munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1771 CODE:
1772{
1773 STRLEN svlen;
1774 void *addr = SvPVbyte (scalar, svlen);
1775 size_t len = SvUV (length);
1776
1777 if (offset < 0)
1778 offset += svlen;
1779
1780 if (offset < 0 || offset > svlen)
1781 croak ("offset outside of scalar");
1782
1783 if (!SvOK (length) || len + offset > svlen)
1784 len = svlen - offset;
1785
1786 addr = (void *)(((intptr_t)addr) + offset);
1787 eio_page_align (&addr, &len);
1788#if _POSIX_MEMLOCK_RANGE
1789 RETVAL = munlock (addr, len);
1790#else
1791 RETVAL = EIO_ENOSYS ();
1792#endif
1793}
1794 OUTPUT:
1795 RETVAL
1796
1797int
1798munlockall ()
1799 CODE:
1800#if _POSIX_MEMLOCK
1801 munlockall ();
1802#else
1803 RETVAL = EIO_ENOSYS ();
1804#endif
1805 OUTPUT:
1806 RETVAL
1807
1808int
1809splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1810 CODE:
1811{
1812#if HAVE_LINUX_SPLICE
1813 loff_t off_in_, off_out_;
1814 RETVAL = splice (
1815 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1816 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1817 length, flags
1818 );
1819#else
1820 RETVAL = EIO_ENOSYS ();
1821#endif
1822}
1823 OUTPUT:
1824 RETVAL
1825
1826int
1827tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1828 CODE:
1829#if HAVE_LINUX_SPLICE
1830 RETVAL = tee (rfh, wfh, length, flags);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834 OUTPUT:
1835 RETVAL
1836
1837void _on_next_submit (SV *cb)
1838 CODE:
1839 SvREFCNT_dec (on_next_submit);
1840 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1841
1980PROTOTYPES: DISABLE 1842PROTOTYPES: DISABLE
1843
1844MODULE = IO::AIO PACKAGE = IO::AIO::WD
1845
1846BOOT:
1847{
1848 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1849 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1850}
1851
1852void
1853DESTROY (SV *self)
1854 CODE:
1855{
1856 aio_wd wd = SvAIO_WD (self);
1857#if HAVE_AT
1858 {
1859 SV *callback = &PL_sv_undef;
1860 dREQ; /* clobbers next_pri :/ */
1861 next_pri = req->pri; /* restore next_pri */
1862 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1863 req->type = EIO_WD_CLOSE;
1864 req->wd = wd;
1865 REQ_SEND;
1866 }
1867#else
1868 eio_wd_close_sync (wd);
1869#endif
1870}
1981 1871
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1872MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1873
1984void 1874void
1985cancel (aio_req_ornot req) 1875cancel (aio_req_ornot req)
1986 CODE: 1876 CODE:
1987 req_cancel (req); 1877 eio_cancel (req);
1988 1878
1989void 1879void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1880cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1881 PPCODE:
1882{
1883 if (GIMME_V != G_VOID)
1884 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1885
1886 if (items > 1)
1887 {
1888 SV *cb_cv =get_cb (callback);
1889
1992 SvREFCNT_dec (req->callback); 1890 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1891 req->callback = SvREFCNT_inc (cb_cv);
1892 }
1893}
1994 1894
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1895MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1896
1997void 1897void
1998add (aio_req grp, ...) 1898add (aio_req grp, ...)
1999 PPCODE: 1899 PPCODE:
2000{ 1900{
2001 int i; 1901 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1902
2007 if (grp->int1 == 2) 1903 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1904 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1905
2010 for (i = 1; i < items; ++i ) 1906 for (i = 1; i < items; ++i )
2011 { 1907 {
1908 aio_req req;
1909
2012 if (GIMME_V != G_VOID) 1910 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1911 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1912
2015 req = SvAIO_REQ (ST (i)); 1913 req = SvAIO_REQ (ST (i));
2016 1914
2017 if (req) 1915 if (req)
2018 { 1916 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1917 }
2031} 1918}
2032 1919
2033void 1920void
2034cancel_subs (aio_req_ornot req) 1921cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1930 AV *av;
2044 1931
2045 grp->errorno = errno; 1932 grp->errorno = errno;
2046 1933
2047 av = newAV (); 1934 av = newAV ();
1935 av_extend (av, items - 1);
2048 1936
2049 for (i = 1; i < items; ++i ) 1937 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1938 av_push (av, newSVsv (ST (i)));
2051 1939
2052 SvREFCNT_dec (grp->sv1); 1940 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1947 grp->errorno = errorno;
2060 1948
2061void 1949void
2062limit (aio_req grp, int limit) 1950limit (aio_req grp, int limit)
2063 CODE: 1951 CODE:
2064 grp->int2 = limit; 1952 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1953
2067void 1954void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1955feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1956 CODE:
2070{ 1957{
2071 SvREFCNT_dec (grp->sv2); 1958 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1959 grp->sv2 = newSVsv (callback);
1960 grp->feed = aio_grp_feed;
2073 1961
2074 if (grp->int2 <= 0) 1962 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1963 grp->int2 = 2;
2076 1964
2077 aio_grp_feed (grp); 1965 eio_grp_limit (grp, grp->int2);
2078} 1966}
2079 1967

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