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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.108 by root, Thu Oct 4 12:50:35 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
102static HV *stash; 227/*****************************************************************************/
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 */
113 228
114enum { 229enum {
115 REQ_QUIT, 230 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_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}; 231};
131 232
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; 233typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 234typedef eio_req *aio_req_ornot;
235typedef eio_wd aio_wd;
168 236
169enum { 237static SV *on_next_submit;
170 PRI_MIN = -4, 238static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 239static int max_outstanding;
172 240
173 DEFAULT_PRI = 0, 241static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 242
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); 243static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 244static void req_cancel (aio_req req);
378 245
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
379/* must be called at most once */ 260/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 261static SV *
262req_sv (aio_req req, HV *stash)
381{ 263{
382 if (!req->self) 264 if (!req->self)
383 { 265 {
384 req->self = (SV *)newHV (); 266 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 267 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 268 }
387 269
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 270 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 271}
390 272
391static 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)
392{ 281{
393 MAGIC *mg; 282 MAGIC *mg;
394 283
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 289 croak ("object of class IO::AIO::REQ expected");
397 290
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 291 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 292
400 return mg ? (aio_req)mg->mg_ptr : 0; 293 return mg ? (aio_req)mg->mg_ptr : 0;
401} 294}
402 295
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
403static void aio_grp_feed (aio_req grp) 308aio_grp_feed (aio_req grp)
404{ 309{
405 block_sig (); 310 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 311 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 312 dSP;
414 313
415 ENTER; 314 ENTER;
416 SAVETMPS; 315 SAVETMPS;
417 PUSHMARK (SP); 316 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 317 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 318 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 319 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 320 SPAGAIN;
422 FREETMPS; 321 FREETMPS;
423 LEAVE; 322 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 } 323 }
434
435 unblock_sig ();
436} 324}
437 325
438static void aio_grp_dec (aio_req grp) 326static void
327req_submit (eio_req *req)
439{ 328{
440 --grp->size; 329 eio_submit (req);
441 330
442 /* call feeder, if applicable */ 331 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 332 {
448 block_sig (); 333 dSP;
334 SV *cb = sv_2mortal (on_next_submit);
449 335
450 if (!req_invoke (grp)) 336 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 337
457 req_destroy (grp); 338 PUSHMARK (SP);
458 unblock_sig (); 339 PUTBACK;
340 call_sv (cb, G_DISCARD | G_EVAL);
459 } 341 }
460} 342}
461 343
344static int
462static int req_invoke (aio_req req) 345req_invoke (eio_req *req)
463{ 346{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 347 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 348 SvREADONLY_off (req->sv2);
468 349
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 350 if (!EIO_CANCELLED (req) && req->callback)
470 { 351 {
352 dSP;
353 static SV *sv_result_cache; /* caches the result integer SV */
354 SV *sv_result;
355
471 ENTER; 356 ENTER;
472 SAVETMPS; 357 SAVETMPS;
473 PUSHMARK (SP); 358 PUSHMARK (SP);
474 EXTEND (SP, 1); 359 EXTEND (SP, 1);
475 360
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
476 switch (req->type) 374 switch (req->type)
477 { 375 {
376 case EIO_WD_OPEN:
377 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
378 break;
379
478 case REQ_READDIR: 380 case EIO_READDIR:
479 { 381 {
480 SV *rv = &PL_sv_undef; 382 SV *rv = &PL_sv_undef;
481 383
482 if (req->result >= 0) 384 if (req->result >= 0)
483 { 385 {
484 int i; 386 int i;
485 char *buf = req->ptr2; 387 char *names = (char *)req->ptr2;
388 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 389 AV *av = newAV ();
487 390
488 av_extend (av, req->result - 1); 391 av_extend (av, req->result - 1);
489 392
490 for (i = 0; i < req->result; ++i) 393 for (i = 0; i < req->result; ++i)
491 { 394 {
492 SV *sv = newSVpv (buf, 0); 395 if (req->int1 & EIO_READDIR_DENTS)
396 {
397 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 398
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
494 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);
495 buf += SvCUR (sv) + 1; 427 names += SvCUR (name) + 1;
428 }
496 } 429 }
497 430
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 431 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 432 }
500 433
501 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))));
502 } 438 }
503 break; 439 break;
504 440
505 case REQ_OPEN: 441 case EIO_OPEN:
506 { 442 {
507 /* convert fd to fh */ 443 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 444 SV *fh = &PL_sv_undef;
509 445
510 if (req->result >= 0) 446 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 448 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 449 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 450 char sym [64];
515 int symlen; 451 int symlen;
516 452
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 453 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 454 gv_init (gv, aio_stash, sym, symlen, 0);
519 455
520 symlen = snprintf ( 456 symlen = snprintf (
521 sym, 457 sym,
522 sizeof (sym), 458 sizeof (sym),
523 "%s&=%d", 459 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 461 (int)req->result
526 ); 462 );
527 463
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 464 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 465 fh = (SV *)gv;
530 } 466 }
531 467
532 XPUSHs (fh); 468 PUSHs (fh);
533 } 469 }
534 break; 470 break;
535 471
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
536 case REQ_GROUP: 504 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 505 req->int1 = 2; /* mark group as finished */
538 506
539 if (req->sv1) 507 if (req->sv1)
540 { 508 {
541 int i; 509 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 513 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 514 PUSHs (*av_fetch (av, i, 0));
547 } 515 }
548 break; 516 break;
549 517
550 case REQ_NOP: 518 case EIO_NOP:
551 case REQ_BUSY: 519 case EIO_BUSY:
552 break; 520 break;
553 521
554 case REQ_READLINK: 522 case EIO_READLINK:
523 case EIO_REALPATH:
555 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)
556 { 556 {
557 SvCUR_set (req->sv2, req->result); 557#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 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
560 } 589 }
590 else
591 PUSHs (sv_result);
561 break; 592 break;
562 593
563 case REQ_STAT: 594 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 595 if (req->result > 0)
565 case REQ_FSTAT: 596 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 597 /* 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;
577 598
578 default: 599 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 600 PUSHs (sv_result);
580 break; 601 break;
581 } 602 }
582 603
583 errno = req->errorno; 604 errno = req->errorno;
584 605
585 PUTBACK; 606 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 607 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 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;
588 614
589 FREETMPS; 615 FREETMPS;
590 LEAVE; 616 LEAVE;
617
618 PUTBACK;
591 } 619 }
592 620
593 if (req->grp)
594 {
595 aio_req grp = req->grp;
596
597 /* unlink request */
598 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
599 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
600
601 if (grp->grp_first == req)
602 grp->grp_first = req->grp_next;
603
604 aio_grp_dec (grp);
605 }
606
607 return !SvTRUE (ERRSV); 621 return !!SvTRUE (ERRSV);
608} 622}
609 623
624static void
610static void req_destroy (aio_req req) 625req_destroy (aio_req req)
611{ 626{
612 if (req->self) 627 if (req->self)
613 { 628 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 629 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 630 SvREFCNT_dec (req->self);
616 } 631 }
617 632
618 SvREFCNT_dec (req->sv1); 633 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 634 SvREFCNT_dec (req->sv2);
635 SvREFCNT_dec (req->sv3);
636 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 637 SvREFCNT_dec (req->callback);
621 638
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 639 free (req);
626} 640}
627 641
642static void
628static void req_cancel_subs (aio_req grp) 643req_cancel_subs (aio_req grp)
629{ 644{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 645 if (grp->type != EIO_GROUP)
633 return; 646 return;
634 647
635 SvREFCNT_dec (grp->sv2); 648 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 649 grp->sv2 = 0;
637 650
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 651 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 652}
641 653
642static void req_cancel (aio_req req) 654static void ecb_cold
655create_respipe (void)
643{ 656{
644 req->flags |= FLAG_CANCELLED; 657 if (s_epipe_renew (&respipe))
645 658 croak ("IO::AIO: unable to initialize result pipe");
646 req_cancel_subs (req);
647} 659}
648
649#ifdef USE_SOCKETS_AS_HANDLES
650# define TO_SOCKET(x) (win32_get_osfhandle (x))
651#else
652# define TO_SOCKET(x) (x)
653#endif
654 660
655static void 661static void
656create_respipe () 662poll_wait (void)
657{ 663{
658 int old_readfd = respipe [0];
659
660 if (respipe [1] >= 0)
661 respipe_close (TO_SOCKET (respipe [1]));
662
663#ifdef _WIN32
664 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
665#else
666 if (pipe (respipe))
667#endif
668 croak ("unable to initialize result pipe");
669
670 if (old_readfd >= 0)
671 {
672 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
673 croak ("unable to initialize result pipe(2)");
674
675 respipe_close (respipe [0]);
676 respipe [0] = old_readfd;
677 }
678
679#ifdef _WIN32
680 int arg = 1;
681 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
682 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
683#else
684 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
685 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
686#endif
687 croak ("unable to initialize result pipe(3)");
688
689 respipe_osf [0] = TO_SOCKET (respipe [0]);
690 respipe_osf [1] = TO_SOCKET (respipe [1]);
691}
692
693X_THREAD_PROC (aio_proc);
694
695static void start_thread (void)
696{
697 worker *wrk = calloc (1, sizeof (worker));
698
699 if (!wrk)
700 croak ("unable to allocate worker thread data");
701
702 X_LOCK (wrklock);
703
704 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
705 {
706 wrk->prev = &wrk_first;
707 wrk->next = wrk_first.next;
708 wrk_first.next->prev = wrk;
709 wrk_first.next = wrk;
710 ++started;
711 }
712 else
713 free (wrk);
714
715 X_UNLOCK (wrklock);
716}
717
718static void maybe_start_thread ()
719{
720 if (get_nthreads () >= wanted)
721 return;
722
723 /* todo: maybe use idle here, but might be less exact */
724 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
725 return;
726
727 start_thread ();
728}
729
730static void req_send (aio_req req)
731{
732 block_sig ();
733
734 ++nreqs;
735
736 X_LOCK (reqlock);
737 ++nready;
738 reqq_push (&req_queue, req);
739 X_COND_SIGNAL (reqwait);
740 X_UNLOCK (reqlock);
741
742 unblock_sig ();
743
744 maybe_start_thread ();
745}
746
747static void end_thread (void)
748{
749 aio_req req;
750
751 Newz (0, req, 1, aio_cb);
752
753 req->type = REQ_QUIT;
754 req->pri = PRI_MAX + PRI_BIAS;
755
756 X_LOCK (reqlock);
757 reqq_push (&req_queue, req);
758 X_COND_SIGNAL (reqwait);
759 X_UNLOCK (reqlock);
760
761 X_LOCK (wrklock);
762 --started;
763 X_UNLOCK (wrklock);
764}
765
766static void set_max_idle (int nthreads)
767{
768 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
769 max_idle = nthreads <= 0 ? 1 : nthreads;
770 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
771}
772
773static void min_parallel (int nthreads)
774{
775 if (wanted < nthreads)
776 wanted = nthreads;
777}
778
779static void max_parallel (int nthreads)
780{
781 if (wanted > nthreads)
782 wanted = nthreads;
783
784 while (started > wanted)
785 end_thread ();
786}
787
788static void poll_wait ()
789{
790 fd_set rfd;
791
792 while (nreqs) 664 while (eio_nreqs ())
793 { 665 {
794 int size; 666 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 667
668 X_LOCK (reslock);
796 size = res_queue.size; 669 size = res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 670 X_UNLOCK (reslock);
798 671
799 if (size) 672 if (size)
800 return; 673 return;
801 674
802 maybe_start_thread (); 675 etp_maybe_start_thread ();
803 676
804 FD_ZERO (&rfd); 677 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 678 }
809} 679}
810 680
811static int poll_cb () 681static int
682poll_cb (void)
812{ 683{
813 dSP;
814 int count = 0;
815 int maxreqs = max_poll_reqs;
816 int do_croak = 0;
817 struct timeval tv_start, tv_now;
818 aio_req req;
819
820 if (max_poll_time)
821 gettimeofday (&tv_start, 0);
822
823 block_sig ();
824
825 for (;;) 684 for (;;)
826 { 685 {
827 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)
828 { 799 {
829 maybe_start_thread (); 800 path = AvARRAY (rv)[1];
801 wdob = AvARRAY (rv)[0];
830 802
831 X_LOCK (reslock); 803 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 804 {
836 --npending; 805 *wd = SvAIO_WD (wdob);
837 806 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 if (!res_queue.size)
839 {
840 /* read any signals sent by the worker threads */
841 char buf [4];
842 while (respipe_read (respipe [0], buf, 4) == 4)
843 ;
844 }
845 }
846
847 X_UNLOCK (reslock);
848
849 if (!req)
850 break;
851
852 --nreqs;
853
854 if (req->type == REQ_GROUP && req->size)
855 {
856 req->int1 = 1; /* mark request as delayed */
857 continue;
858 } 807 }
859 else 808 else
860 { 809 *wd = EIO_INVALID_WD;
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0);
866 }
867
868 count++;
869 }
870
871 req_destroy (req);
872
873 if (maxreqs && !--maxreqs)
874 break;
875
876 if (max_poll_time)
877 {
878 gettimeofday (&tv_now, 0);
879
880 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
881 break;
882 }
883 } 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 }
884 821
885 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)));
886 break; 845 break;
887 846
888 poll_wait (); 847 default:
889 848 req->type = type_path;
890 ++maxreqs; 849 req_set_path1 (req, fh_or_path);
850 break;
891 } 851 }
892
893 unblock_sig ();
894 return count;
895} 852}
896 853
897/*****************************************************************************/ 854XS(boot_IO__AIO) ecb_cold;
898/* work around various missing functions */
899 855
900#if !HAVE_PREADWRITE
901# define pread aio_pread
902# define pwrite aio_pwrite
903
904/*
905 * make our pread/pwrite safe against themselves, but not against
906 * normal read/write by using a mutex. slows down execution a lot,
907 * but that's your problem, not mine.
908 */
909static mutex_t preadwritelock = X_MUTEX_INIT;
910
911static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
912{
913 ssize_t res;
914 off_t ooffset;
915
916 X_LOCK (preadwritelock);
917 ooffset = lseek (fd, 0, SEEK_CUR);
918 lseek (fd, offset, SEEK_SET);
919 res = read (fd, buf, count);
920 lseek (fd, ooffset, SEEK_SET);
921 X_UNLOCK (preadwritelock);
922
923 return res;
924}
925
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
927{
928 ssize_t res;
929 off_t ooffset;
930
931 X_LOCK (preadwritelock);
932 ooffset = lseek (fd, 0, SEEK_CUR);
933 lseek (fd, offset, SEEK_SET);
934 res = write (fd, buf, count);
935 lseek (fd, offset, SEEK_SET);
936 X_UNLOCK (preadwritelock);
937
938 return res;
939}
940#endif
941
942#ifndef HAVE_FUTIMES
943
944# define utimes(path,times) aio_utimes (path, times)
945# define futimes(fd,times) aio_futimes (fd, times)
946
947int aio_utimes (const char *filename, const struct timeval times[2])
948{
949 if (times)
950 {
951 struct utimbuf buf;
952
953 buf.actime = times[0].tv_sec;
954 buf.modtime = times[1].tv_sec;
955
956 return utime (filename, &buf);
957 }
958 else
959 return utime (filename, 0);
960}
961
962int aio_futimes (int fd, const struct timeval tv[2])
963{
964 errno = ENOSYS;
965 return -1;
966}
967
968#endif
969
970#if !HAVE_FDATASYNC
971# define fdatasync fsync
972#endif
973
974#if !HAVE_READAHEAD
975# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
976
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
978{
979 size_t todo = count;
980 dBUF;
981
982 while (todo > 0)
983 {
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985
986 pread (fd, aio_buf, len, offset);
987 offset += len;
988 todo -= len;
989 }
990
991 errno = 0;
992 return count;
993}
994
995#endif
996
997#if !HAVE_READDIR_R
998# define readdir_r aio_readdir_r
999
1000static mutex_t readdirlock = X_MUTEX_INIT;
1001
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1003{
1004 X_DIRENT *e;
1005 int errorno;
1006
1007 X_LOCK (readdirlock);
1008
1009 e = readdir (dirp);
1010 errorno = errno;
1011
1012 if (e)
1013 {
1014 *res = ent;
1015 strcpy (ent->d_name, e->d_name);
1016 }
1017 else
1018 *res = 0;
1019
1020 X_UNLOCK (readdirlock);
1021
1022 errno = errorno;
1023 return e ? 0 : -1;
1024}
1025#endif
1026
1027/* sendfile always needs emulation */
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1029{
1030 ssize_t res;
1031
1032 if (!count)
1033 return 0;
1034
1035#if HAVE_SENDFILE
1036# if __linux
1037 res = sendfile (ofd, ifd, &offset, count);
1038
1039# elif __freebsd
1040 /*
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts
1042 * wasted on making it similar to other I/O functions.
1043 */
1044 {
1045 off_t sbytes;
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047
1048 if (res < 0 && sbytes)
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1050 res = sbytes;
1051 }
1052
1053# elif __hpux
1054 res = sendfile (ofd, ifd, offset, count, 0, 0);
1055
1056# elif __solaris
1057 {
1058 struct sendfilevec vec;
1059 size_t sbytes;
1060
1061 vec.sfv_fd = ifd;
1062 vec.sfv_flag = 0;
1063 vec.sfv_off = offset;
1064 vec.sfv_len = count;
1065
1066 res = sendfilev (ofd, &vec, 1, &sbytes);
1067
1068 if (res < 0 && sbytes)
1069 res = sbytes;
1070 }
1071
1072# endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077
1078 if (res < 0
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1080#if __solaris
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1082#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088
1089 res = 0;
1090
1091 while (count)
1092 {
1093 ssize_t cnt;
1094
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1096
1097 if (cnt <= 0)
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102
1103 cnt = write (ofd, aio_buf, cnt);
1104
1105 if (cnt <= 0)
1106 {
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110
1111 offset += cnt;
1112 res += cnt;
1113 count -= cnt;
1114 }
1115 }
1116
1117 return res;
1118}
1119
1120/* read a full directory */
1121static void scandir_ (aio_req req, worker *self)
1122{
1123 DIR *dirp;
1124 union
1125 {
1126 X_DIRENT d;
1127 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1128 } *u;
1129 X_DIRENT *entp;
1130 char *name, *names;
1131 int memlen = 4096;
1132 int memofs = 0;
1133 int res = 0;
1134
1135 X_LOCK (wrklock);
1136 self->dirp = dirp = opendir (req->ptr1);
1137 self->dbuf = u = malloc (sizeof (*u));
1138 req->flags |= FLAG_PTR2_FREE;
1139 req->ptr2 = names = malloc (memlen);
1140 X_UNLOCK (wrklock);
1141
1142 if (dirp && u && names)
1143 for (;;)
1144 {
1145 errno = 0;
1146 readdir_r (dirp, &u->d, &entp);
1147
1148 if (!entp)
1149 break;
1150
1151 name = entp->d_name;
1152
1153 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1154 {
1155 int len = strlen (name) + 1;
1156
1157 res++;
1158
1159 while (memofs + len > memlen)
1160 {
1161 memlen *= 2;
1162 X_LOCK (wrklock);
1163 req->ptr2 = names = realloc (names, memlen);
1164 X_UNLOCK (wrklock);
1165
1166 if (!names)
1167 break;
1168 }
1169
1170 memcpy (names + memofs, name, len);
1171 memofs += len;
1172 }
1173 }
1174
1175 if (errno)
1176 res = -1;
1177
1178 req->result = res;
1179}
1180
1181/*****************************************************************************/
1182
1183X_THREAD_PROC (aio_proc)
1184{
1185 {//D
1186 aio_req req;
1187 struct timespec ts;
1188 worker *self = (worker *)thr_arg;
1189
1190 /* try to distribute timeouts somewhat randomly */
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192
1193 for (;;)
1194 {
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1196
1197 X_LOCK (reqlock);
1198
1199 for (;;)
1200 {
1201 self->req = req = reqq_shift (&req_queue);
1202
1203 if (req)
1204 break;
1205
1206 ++idle;
1207
1208 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1209 == ETIMEDOUT)
1210 {
1211 if (idle > max_idle)
1212 {
1213 --idle;
1214 X_UNLOCK (reqlock);
1215 X_LOCK (wrklock);
1216 --started;
1217 X_UNLOCK (wrklock);
1218 goto quit;
1219 }
1220
1221 /* we are allowed to idle, so do so without any timeout */
1222 X_COND_WAIT (reqwait, reqlock);
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224 }
1225
1226 --idle;
1227 }
1228
1229 --nready;
1230
1231 X_UNLOCK (reqlock);
1232
1233 errno = 0; /* strictly unnecessary */
1234
1235 if (!(req->flags & FLAG_CANCELLED))
1236 switch (req->type)
1237 {
1238 case REQ_READ: req->result = req->offs >= 0
1239 ? pread (req->int1, req->ptr1, req->size, req->offs)
1240 : read (req->int1, req->ptr1, req->size); break;
1241 case REQ_WRITE: req->result = req->offs >= 0
1242 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1243 : write (req->int1, req->ptr1, req->size); break;
1244
1245 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1246 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1247
1248 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1249 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1251
1252 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1253 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1254 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1255 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1256 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1257 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1258
1259 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1260 case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
1261 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1262 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1263 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1264 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1265 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1266 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1267 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1268 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1269
1270 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1271 case REQ_FSYNC: req->result = fsync (req->int1); break;
1272 case REQ_READDIR: scandir_ (req, self); break;
1273
1274 case REQ_BUSY:
1275#ifdef _WIN32
1276 Sleep (req->nv1 * 1000.);
1277#else
1278 {
1279 struct timeval tv;
1280
1281 tv.tv_sec = req->nv1;
1282 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1283
1284 req->result = select (0, 0, 0, 0, &tv);
1285 }
1286#endif
1287 break;
1288
1289 case REQ_UTIME:
1290 case REQ_FUTIME:
1291 {
1292 struct timeval tv[2];
1293 struct timeval *times;
1294
1295 if (req->nv1 != -1. || req->nv2 != -1.)
1296 {
1297 tv[0].tv_sec = req->nv1;
1298 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1299 tv[1].tv_sec = req->nv2;
1300 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1301
1302 times = tv;
1303 }
1304 else
1305 times = 0;
1306
1307
1308 req->result = req->type == REQ_FUTIME
1309 ? futimes (req->int1, times)
1310 : utimes (req->ptr1, times);
1311 }
1312
1313 case REQ_GROUP:
1314 case REQ_NOP:
1315 break;
1316
1317 case REQ_QUIT:
1318 goto quit;
1319
1320 default:
1321 req->result = -1;
1322 break;
1323 }
1324
1325 req->errorno = errno;
1326
1327 X_LOCK (reslock);
1328
1329 ++npending;
1330
1331 if (!reqq_push (&res_queue, req))
1332 {
1333 /* write a dummy byte to the pipe so fh becomes ready */
1334 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1335
1336 /* optionally signal the main thread asynchronously */
1337 if (main_sig)
1338 pthread_kill (main_tid, main_sig);
1339 }
1340
1341 self->req = 0;
1342 worker_clear (self);
1343
1344 X_UNLOCK (reslock);
1345 }
1346
1347quit:
1348 X_LOCK (wrklock);
1349 worker_free (self);
1350 X_UNLOCK (wrklock);
1351
1352 return 0;
1353 }//D
1354}
1355
1356/*****************************************************************************/
1357
1358static void atfork_prepare (void)
1359{
1360 X_LOCK (wrklock);
1361 X_LOCK (reqlock);
1362 X_LOCK (reslock);
1363#if !HAVE_PREADWRITE
1364 X_LOCK (preadwritelock);
1365#endif
1366#if !HAVE_READDIR_R
1367 X_LOCK (readdirlock);
1368#endif
1369}
1370
1371static void atfork_parent (void)
1372{
1373#if !HAVE_READDIR_R
1374 X_UNLOCK (readdirlock);
1375#endif
1376#if !HAVE_PREADWRITE
1377 X_UNLOCK (preadwritelock);
1378#endif
1379 X_UNLOCK (reslock);
1380 X_UNLOCK (reqlock);
1381 X_UNLOCK (wrklock);
1382}
1383
1384static void atfork_child (void)
1385{
1386 aio_req prv;
1387
1388 while (prv = reqq_shift (&req_queue))
1389 req_destroy (prv);
1390
1391 while (prv = reqq_shift (&res_queue))
1392 req_destroy (prv);
1393
1394 while (wrk_first.next != &wrk_first)
1395 {
1396 worker *wrk = wrk_first.next;
1397
1398 if (wrk->req)
1399 req_destroy (wrk->req);
1400
1401 worker_clear (wrk);
1402 worker_free (wrk);
1403 }
1404
1405 started = 0;
1406 idle = 0;
1407 nreqs = 0;
1408 nready = 0;
1409 npending = 0;
1410
1411 create_respipe ();
1412
1413 atfork_parent ();
1414}
1415
1416#define dREQ \
1417 aio_req req; \
1418 int req_pri = next_pri; \
1419 next_pri = DEFAULT_PRI + PRI_BIAS; \
1420 \
1421 if (SvOK (callback) && !SvROK (callback)) \
1422 croak ("callback must be undef or of reference type"); \
1423 \
1424 Newz (0, req, 1, aio_cb); \
1425 if (!req) \
1426 croak ("out of memory during aio_req allocation"); \
1427 \
1428 req->callback = newSVsv (callback); \
1429 req->pri = req_pri
1430
1431#define REQ_SEND \
1432 req_send (req); \
1433 \
1434 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1436
1437MODULE = IO::AIO PACKAGE = IO::AIO 856MODULE = IO::AIO PACKAGE = IO::AIO
1438 857
1439PROTOTYPES: ENABLE 858PROTOTYPES: ENABLE
1440 859
1441BOOT: 860BOOT:
1442{ 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
1443 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);
1444 1017
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1018 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1019 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1447 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1448 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1449 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1450#ifdef _WIN32
1451 X_MUTEX_CHECK (wrklock);
1452 X_MUTEX_CHECK (reslock);
1453 X_MUTEX_CHECK (reqlock);
1454 X_MUTEX_CHECK (reqwait);
1455 X_MUTEX_CHECK (preadwritelock);
1456 X_MUTEX_CHECK (readdirlock);
1457 1020
1458 X_COND_CHECK (reqwait); 1021 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459#else
1460 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1461 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1462#endif
1463 1022
1464 create_respipe (); 1023 reinit ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467} 1024}
1468 1025
1469void 1026void
1027reinit ()
1028 PROTOTYPE:
1029
1030void
1470max_poll_reqs (int nreqs) 1031max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1032 PROTOTYPE: $
1472 CODE: 1033 CODE:
1473 max_poll_reqs = nreqs; 1034 eio_set_max_poll_reqs (nreqs);
1474 1035
1475void 1036void
1476max_poll_time (double nseconds) 1037max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1038 PROTOTYPE: $
1478 CODE: 1039 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1040 eio_set_max_poll_time (nseconds);
1480 1041
1481void 1042void
1482min_parallel (int nthreads) 1043min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1044 PROTOTYPE: $
1492 CODE: 1045 CODE:
1493 set_max_idle (nthreads); 1046 eio_set_min_parallel (nthreads);
1494 1047
1495int 1048void
1496max_outstanding (int maxreqs) 1049max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1050 PROTOTYPE: $
1498 CODE: 1051 CODE:
1499 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:
1500 max_outstanding = maxreqs; 1070 max_outstanding = maxreqs;
1501 OUTPUT: 1071
1502 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}
1503 1083
1504void 1084void
1505aio_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)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1086 PPCODE:
1508{ 1087{
1509 dREQ; 1088 dREQ;
1510 1089
1511 req->type = REQ_OPEN; 1090 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1091 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1092 req->int1 = flags;
1515 req->mode = mode; 1093 req->int2 = mode;
1516 1094
1517 REQ_SEND; 1095 REQ_SEND;
1518} 1096}
1519 1097
1520void 1098void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1099aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1100 ALIAS:
1524 aio_fsync = REQ_FSYNC 1101 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1102 aio_fdatasync = EIO_FDATASYNC
1103 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1104 PPCODE:
1527{ 1105{
1106 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1107 dREQ;
1529 1108
1530 req->type = ix; 1109 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1110 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1111 req->int1 = fd;
1533 1112
1534 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;
1535} 1148}
1536 1149
1537void 1150void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1151aio_close (SV *fh, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1152 PPCODE:
1541{ 1153{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1154 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1543 int fd = PerlIO_fileno (io); 1155 int fd = s_fileno_croak (fh, 0);
1544
1545 if (fd < 0)
1546 croak ("aio_close called with fd-less filehandle");
1547
1548 PerlIO_binmode (aTHX_ io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1156 dREQ;
1552 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
1553 req->type = REQ_CLOSE; 1191 req->type = EIO_SEEK;
1554 req->sv1 = newSVsv (fh); 1192 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1193 req->int1 = fd;
1194 req->offs = SvVAL64 (offset);
1195 req->int2 = whence;
1556 1196
1557 REQ_SEND (req); 1197 REQ_SEND;
1558 }
1559} 1198}
1560 1199
1561void 1200void
1562aio_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)
1563 ALIAS: 1202 ALIAS:
1564 aio_read = REQ_READ 1203 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1204 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1205 PPCODE:
1568{ 1206{
1569 STRLEN svlen; 1207 STRLEN svlen;
1208 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1209 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1210 UV len = SvUV (length);
1572 1211
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1212 if (dataoffset < 0)
1577 dataoffset += svlen; 1213 dataoffset += svlen;
1578 1214
1579 if (dataoffset < 0 || dataoffset > svlen) 1215 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1216 croak ("dataoffset outside of data scalar");
1581 1217
1582 if (ix == REQ_WRITE) 1218 if (ix == EIO_WRITE)
1583 { 1219 {
1584 /* write: check length and adjust. */ 1220 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1221 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1222 len = svlen - dataoffset;
1587 } 1223 }
1588 else 1224 else
1589 { 1225 {
1590 /* 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))
1591 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");
1592 } 1232 }
1593
1594 if (len < 0)
1595 croak ("length must not be negative");
1596 1233
1597 { 1234 {
1598 dREQ; 1235 dREQ;
1599 1236
1600 req->type = ix; 1237 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1238 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1239 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1240 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1241 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1242 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1243 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1244 req->stroffset = dataoffset;
1609 1245
1610 if (!SvREADONLY (data)) 1246 if (!SvREADONLY (data))
1611 { 1247 {
1612 SvREADONLY_on (data); 1248 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1252 REQ_SEND;
1617 } 1253 }
1618} 1254}
1619 1255
1620void 1256void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1257aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1622 PROTOTYPE: $$;$ 1258 ALIAS:
1259 aio_readlink = EIO_READLINK
1260 aio_realpath = EIO_REALPATH
1623 PPCODE: 1261 PPCODE:
1624{ 1262{
1625 SV *data;
1626 dREQ; 1263 dREQ;
1627 1264
1628 data = newSV (NAME_MAX);
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK; 1265 req->type = ix;
1632 req->sv1 = newSVsv (path); 1266 req_set_path1 (req, pathname);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636 1267
1637 REQ_SEND; 1268 REQ_SEND;
1638} 1269}
1639 1270
1640void 1271void
1641aio_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)
1642 PROTOTYPE: $$$$;$
1643 PPCODE: 1273 PPCODE:
1644{ 1274{
1275 int ifd = s_fileno_croak (in_fh , 0);
1276 int ofd = s_fileno_croak (out_fh, 1);
1645 dREQ; 1277 dREQ;
1646 1278
1647 req->type = REQ_SENDFILE; 1279 req->type = EIO_SENDFILE;
1648 req->sv1 = newSVsv (out_fh); 1280 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1281 req->int1 = ofd;
1650 req->sv2 = newSVsv (in_fh); 1282 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1283 req->int2 = ifd;
1652 req->offs = SvVAL64 (in_offset); 1284 req->offs = in_offset;
1653 req->size = length; 1285 req->size = length;
1654 1286
1655 REQ_SEND; 1287 REQ_SEND;
1656} 1288}
1657 1289
1658void 1290void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1291aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE: 1292 PPCODE:
1662{ 1293{
1294 int fd = s_fileno_croak (fh, 0);
1663 dREQ; 1295 dREQ;
1664 1296
1665 req->type = REQ_READAHEAD; 1297 req->type = EIO_READAHEAD;
1666 req->sv1 = newSVsv (fh); 1298 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1299 req->int1 = fd;
1668 req->offs = SvVAL64 (offset); 1300 req->offs = offset;
1669 req->size = length; 1301 req->size = length;
1670 1302
1671 REQ_SEND; 1303 REQ_SEND;
1672} 1304}
1673 1305
1674void 1306void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1307aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS: 1308 ALIAS:
1677 aio_stat = REQ_STAT 1309 aio_stat = EIO_STAT
1678 aio_lstat = REQ_LSTAT 1310 aio_lstat = EIO_LSTAT
1311 aio_statvfs = EIO_STATVFS
1679 PPCODE: 1312 PPCODE:
1680{ 1313{
1681 dREQ; 1314 dREQ;
1682 1315
1683 req->ptr2 = malloc (sizeof (Stat_t)); 1316 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1684 if (!req->ptr2)
1685 {
1686 req_destroy (req);
1687 croak ("out of memory during aio_stat statdata allocation");
1688 }
1689
1690 req->flags |= FLAG_PTR2_FREE;
1691 req->sv1 = newSVsv (fh_or_path);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 }
1698 else
1699 {
1700 req->type = REQ_FSTAT;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1702 }
1703 1317
1704 REQ_SEND; 1318 REQ_SEND;
1705} 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
1706 1336
1707void 1337void
1708aio_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)
1709 PPCODE: 1339 PPCODE:
1710{ 1340{
1711 dREQ; 1341 dREQ;
1712 1342
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1343 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1344 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1345 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1716
1717 if (SvPOK (fh_or_path))
1718 {
1719 req->type = REQ_UTIME;
1720 req->ptr1 = SvPVbyte_nolen (req->sv1);
1721 }
1722 else
1723 {
1724 req->type = REQ_FUTIME;
1725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1726 }
1727 1346
1728 REQ_SEND; 1347 REQ_SEND;
1729} 1348}
1730 1349
1731void 1350void
1732aio_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)
1733 PPCODE: 1352 PPCODE:
1734{ 1353{
1735 dREQ; 1354 dREQ;
1736 1355
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1356 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1357 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1740 if (SvPOK (fh_or_path))
1741 {
1742 req->type = REQ_TRUNCATE;
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 }
1745 else
1746 {
1747 req->type = REQ_FTRUNCATE;
1748 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1749 }
1750 1358
1751 REQ_SEND; 1359 REQ_SEND;
1752} 1360}
1753 1361
1754void 1362void
1755aio_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)
1756 PPCODE: 1364 PPCODE:
1757{ 1365{
1758 dREQ; 1366 dREQ;
1759 1367
1760 req->mode = mode; 1368 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1369 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1762
1763 if (SvPOK (fh_or_path))
1764 {
1765 req->type = REQ_CHMOD;
1766 req->ptr1 = SvPVbyte_nolen (req->sv1);
1767 }
1768 else
1769 {
1770 req->type = REQ_FCHMOD;
1771 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1772 }
1773 1370
1774 REQ_SEND; 1371 REQ_SEND;
1775} 1372}
1776 1373
1777void 1374void
… …
1780{ 1377{
1781 dREQ; 1378 dREQ;
1782 1379
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1380 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1381 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1382 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786 1383
1787 if (SvPOK (fh_or_path)) 1384 REQ_SEND;
1788 { 1385}
1789 req->type = REQ_CHOWN; 1386
1790 req->ptr1 = SvPVbyte_nolen (req->sv1); 1387void
1791 } 1388aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1792 else 1389 PPCODE:
1793 { 1390{
1794 req->type = REQ_FCHOWN; 1391 dREQ;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1392
1796 } 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);
1797 1413
1798 REQ_SEND; 1414 REQ_SEND;
1799} 1415}
1800 1416
1801void 1417void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1418aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1803 ALIAS: 1419 ALIAS:
1804 aio_unlink = REQ_UNLINK 1420 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1421 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1422 aio_readdir = EIO_READDIR
1807 PPCODE: 1423 PPCODE:
1808{ 1424{
1809 dREQ; 1425 dREQ;
1810 1426
1811 req->type = ix; 1427 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1428 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814
1815 REQ_SEND;
1816}
1817
1818void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->type = REQ_MKDIR;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode;
1828 1429
1829 REQ_SEND; 1430 REQ_SEND;
1830} 1431}
1831 1432
1832void 1433void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1434aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1834 ALIAS: 1435 ALIAS:
1835 aio_link = REQ_LINK 1436 aio_link = EIO_LINK
1836 aio_symlink = REQ_SYMLINK 1437 aio_symlink = EIO_SYMLINK
1837 aio_rename = REQ_RENAME 1438 aio_rename = EIO_RENAME
1838 PPCODE: 1439 PPCODE:
1839{ 1440{
1441 eio_wd wd2 = 0;
1840 dREQ; 1442 dREQ;
1841 1443
1842 req->type = ix; 1444 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 1445 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 1446 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 1447 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1448
1848 REQ_SEND; 1449 REQ_SEND;
1849} 1450}
1850 1451
1851void 1452void
1852aio_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)
1853 PPCODE: 1454 PPCODE:
1854{ 1455{
1855 dREQ; 1456 dREQ;
1856 1457
1857 req->type = REQ_MKNOD; 1458 req->type = EIO_MKNOD;
1858 req->sv1 = newSVsv (pathname);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1);
1860 req->mode = (mode_t)mode; 1459 req->int2 = (mode_t)mode;
1861 req->offs = dev; 1460 req->offs = dev;
1461 req_set_path1 (req, pathname);
1862 1462
1863 REQ_SEND; 1463 REQ_SEND;
1864} 1464}
1865 1465
1866void 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
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 1564aio_busy (double delay, SV *callback=&PL_sv_undef)
1868 PPCODE: 1565 PPCODE:
1869{ 1566{
1870 dREQ; 1567 dREQ;
1871 1568
1872 req->type = REQ_BUSY; 1569 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 1570 req->nv1 = delay < 0. ? 0. : delay;
1874 1571
1875 REQ_SEND; 1572 REQ_SEND;
1876} 1573}
1877 1574
1878void 1575void
1879aio_group (SV *callback=&PL_sv_undef) 1576aio_group (SV *callback=&PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 1577 PPCODE:
1882{ 1578{
1883 dREQ; 1579 dREQ;
1884 1580
1885 req->type = REQ_GROUP; 1581 req->type = EIO_GROUP;
1886 1582
1887 req_send (req); 1583 req_submit (req);
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1584 XPUSHs (req_sv (req, aio_grp_stash));
1889} 1585}
1890 1586
1891void 1587void
1892aio_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
1893 PPCODE: 1592 PPCODE:
1894{ 1593{
1895 dREQ; 1594 dREQ;
1896 1595
1897 req->type = REQ_NOP; 1596 req->type = ix;
1898 1597
1899 REQ_SEND; 1598 REQ_SEND;
1900} 1599}
1901 1600
1902int 1601int
1903aioreq_pri (int pri = 0) 1602aioreq_pri (int pri = 0)
1904 PROTOTYPE: ;$
1905 CODE: 1603 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 1604 RETVAL = next_pri;
1907 if (items > 0) 1605 if (items > 0)
1908 { 1606 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 1607 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 1608 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 1609 next_pri = pri;
1912 } 1610 }
1913 OUTPUT: 1611 OUTPUT:
1914 RETVAL 1612 RETVAL
1915 1613
1916void 1614void
1917aioreq_nice (int nice = 0) 1615aioreq_nice (int nice = 0)
1918 CODE: 1616 CODE:
1919 nice = next_pri - nice; 1617 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 1618 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 1619 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 1620 next_pri = nice;
1923 1621
1924void 1622void
1925flush () 1623flush ()
1926 PROTOTYPE:
1927 CODE: 1624 CODE:
1928 while (nreqs) 1625 while (eio_nreqs ())
1929 { 1626 {
1930 poll_wait (); 1627 poll_wait ();
1931 poll_cb (); 1628 poll_cb ();
1932 } 1629 }
1933 1630
1934int 1631int
1935poll() 1632poll ()
1936 PROTOTYPE:
1937 CODE: 1633 CODE:
1938 poll_wait (); 1634 poll_wait ();
1939 RETVAL = poll_cb (); 1635 RETVAL = poll_cb ();
1940 OUTPUT: 1636 OUTPUT:
1941 RETVAL 1637 RETVAL
1942 1638
1943int 1639int
1944poll_fileno() 1640poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 1641 CODE:
1947 RETVAL = respipe [0]; 1642 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 1643 OUTPUT:
1949 RETVAL 1644 RETVAL
1950 1645
1951int 1646int
1952poll_cb(...) 1647poll_cb (...)
1953 PROTOTYPE: 1648 PROTOTYPE:
1954 CODE: 1649 CODE:
1955 RETVAL = poll_cb (); 1650 RETVAL = poll_cb ();
1956 OUTPUT: 1651 OUTPUT:
1957 RETVAL 1652 RETVAL
1958 1653
1959void 1654void
1960poll_wait() 1655poll_wait ()
1961 PROTOTYPE:
1962 CODE: 1656 CODE:
1963 poll_wait (); 1657 poll_wait ();
1964 1658
1965void
1966setsig (int signum = SIGIO)
1967 PROTOTYPE: ;$
1968 CODE:
1969{
1970 if (block_sig_level)
1971 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1972
1973 X_LOCK (reslock);
1974 main_tid = pthread_self ();
1975 main_sig = signum;
1976 X_UNLOCK (reslock);
1977
1978 if (main_sig && npending)
1979 pthread_kill (main_tid, main_sig);
1980}
1981
1982void
1983aio_block (SV *cb)
1984 PROTOTYPE: &
1985 PPCODE:
1986{
1987 int count;
1988
1989 block_sig ();
1990 PUSHMARK (SP);
1991 PUTBACK;
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1993 SPAGAIN;
1994 unblock_sig ();
1995
1996 if (SvTRUE (ERRSV))
1997 croak (0);
1998
1999 XSRETURN (count);
2000}
2001
2002int 1659int
2003nreqs() 1660nreqs ()
2004 PROTOTYPE:
2005 CODE: 1661 CODE:
2006 RETVAL = nreqs; 1662 RETVAL = eio_nreqs ();
2007 OUTPUT: 1663 OUTPUT:
2008 RETVAL 1664 RETVAL
2009 1665
2010int 1666int
2011nready() 1667nready ()
2012 PROTOTYPE:
2013 CODE: 1668 CODE:
2014 RETVAL = get_nready (); 1669 RETVAL = eio_nready ();
2015 OUTPUT: 1670 OUTPUT:
2016 RETVAL 1671 RETVAL
2017 1672
2018int 1673int
2019npending() 1674npending ()
2020 PROTOTYPE:
2021 CODE: 1675 CODE:
2022 RETVAL = get_npending (); 1676 RETVAL = eio_npending ();
2023 OUTPUT: 1677 OUTPUT:
2024 RETVAL 1678 RETVAL
2025 1679
2026int 1680int
2027nthreads() 1681nthreads ()
2028 PROTOTYPE:
2029 CODE: 1682 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1683 RETVAL = eio_nthreads ();
2031 RETVAL = started;
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2033 OUTPUT: 1684 OUTPUT:
2034 RETVAL 1685 RETVAL
2035 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
2036PROTOTYPES: 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}
2037 1871
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1872MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 1873
2040void 1874void
2041cancel (aio_req_ornot req) 1875cancel (aio_req_ornot req)
2042 CODE: 1876 CODE:
2043 req_cancel (req); 1877 eio_cancel (req);
2044 1878
2045void 1879void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1880cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2047 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
2048 SvREFCNT_dec (req->callback); 1890 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 1891 req->callback = SvREFCNT_inc (cb_cv);
1892 }
1893}
2050 1894
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1895MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 1896
2053void 1897void
2054add (aio_req grp, ...) 1898add (aio_req grp, ...)
2055 PPCODE: 1899 PPCODE:
2056{ 1900{
2057 int i; 1901 int i;
2058 aio_req req;
2059
2060 if (main_sig && !block_sig_level)
2061 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2062 1902
2063 if (grp->int1 == 2) 1903 if (grp->int1 == 2)
2064 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");
2065 1905
2066 for (i = 1; i < items; ++i ) 1906 for (i = 1; i < items; ++i )
2067 { 1907 {
1908 aio_req req;
1909
2068 if (GIMME_V != G_VOID) 1910 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1911 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 1912
2071 req = SvAIO_REQ (ST (i)); 1913 req = SvAIO_REQ (ST (i));
2072 1914
2073 if (req) 1915 if (req)
2074 { 1916 eio_grp_add (grp, req);
2075 ++grp->size;
2076 req->grp = grp;
2077
2078 req->grp_prev = 0;
2079 req->grp_next = grp->grp_first;
2080
2081 if (grp->grp_first)
2082 grp->grp_first->grp_prev = req;
2083
2084 grp->grp_first = req;
2085 }
2086 } 1917 }
2087} 1918}
2088 1919
2089void 1920void
2090cancel_subs (aio_req_ornot req) 1921cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 1930 AV *av;
2100 1931
2101 grp->errorno = errno; 1932 grp->errorno = errno;
2102 1933
2103 av = newAV (); 1934 av = newAV ();
1935 av_extend (av, items - 1);
2104 1936
2105 for (i = 1; i < items; ++i ) 1937 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 1938 av_push (av, newSVsv (ST (i)));
2107 1939
2108 SvREFCNT_dec (grp->sv1); 1940 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 1947 grp->errorno = errorno;
2116 1948
2117void 1949void
2118limit (aio_req grp, int limit) 1950limit (aio_req grp, int limit)
2119 CODE: 1951 CODE:
2120 grp->int2 = limit; 1952 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 1953
2123void 1954void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 1955feed (aio_req grp, SV *callback=&PL_sv_undef)
2125 CODE: 1956 CODE:
2126{ 1957{
2127 SvREFCNT_dec (grp->sv2); 1958 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 1959 grp->sv2 = newSVsv (callback);
1960 grp->feed = aio_grp_feed;
2129 1961
2130 if (grp->int2 <= 0) 1962 if (grp->int2 <= 0)
2131 grp->int2 = 2; 1963 grp->int2 = 2;
2132 1964
2133 aio_grp_feed (grp); 1965 eio_grp_limit (grp, grp->int2);
2134} 1966}
2135 1967

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