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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.217 by root, Fri Jul 27 17:24:06 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
51 #undef send
52 #undef recv
29# undef stat 53 #undef stat
54 #undef lstat
30# undef fstat 55 #undef fstat
31# define lstat stat
32# undef truncate 56 #undef truncate
33# undef ftruncate 57 #undef ftruncate
34# undef open 58 #undef open
59 #undef link
35# undef close 60 #undef close
36# undef unlink 61 #undef unlink
62 #undef mkdir
37# undef rmdir 63 #undef rmdir
38# undef rename 64 #undef rename
39# 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
40 75
41# define chown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 77 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 78
55#else 79#else
56 80
57# include "autoconf/config.h"
58# include <sys/time.h> 81 #include <sys/time.h>
59# include <sys/select.h> 82 #include <sys/select.h>
60# include <unistd.h> 83 #include <unistd.h>
61# include <utime.h> 84 #include <utime.h>
62# include <signal.h> 85 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 86
65#endif 87 #define EIO_STRUCT_STAT Stat_t
66 88
67#if HAVE_SENDFILE 89#endif
68# if __linux 90
69# include <sys/sendfile.h> 91/*****************************************************************************/
70# elif __freebsd 92
71# include <sys/socket.h> 93#if __GNUC__ >= 3
72# include <sys/uio.h> 94# define expect(expr,value) __builtin_expect ((expr),(value))
73# elif __hpux 95#else
74# include <sys/socket.h> 96# define expect(expr,value) (expr)
75# elif __solaris /* not yet */ 97#endif
76# 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
77# else 140# else
78# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 142# endif
80#endif 143#endif
81 144
82/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 146#include "def0.h"
84 147
85/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
86#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#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
89 157
90/* buffer size for various temporary buffers */ 158#ifndef PAGESIZE
91#define AIO_BUFSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
92 161
93/* use NV for 32 bit perls as it allows larger offsets */ 162/*****************************************************************************/
94#if IVSIZE >= 8 163
95# 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 64 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 maybe 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
200 break; /* autosizing successful, we are done */
201
202 fiemap->fm_flags = req->int2;
203 fiemap->fm_extent_count = 0;
204
205 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206 return;
207
208 count = fiemap->fm_mapped_extents;
209
210 free (fiemap);
211 }
212
213 req->result = 0;
214
96#else 215#else
97# define SvVAL64 SvNV 216 errno = ENOSYS;
98#endif 217#endif
218}
99 219
100#define dBUF \ 220/*****************************************************************************/
101 char *aio_buf; \
102 X_LOCK (wrklock); \
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
104 X_UNLOCK (wrklock); \
105 if (!aio_buf) \
106 return -1;
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109 221
110enum { 222enum {
111 REQ_QUIT, 223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 224};
127 225
128#define AIO_REQ_KLASS "IO::AIO::REQ"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130
131typedef struct aio_cb
132{
133 struct aio_cb *volatile next;
134
135 SV *callback;
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142
143 STRLEN stroffset;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148
149 unsigned char flags;
150 unsigned char pri;
151
152 SV *self; /* the perl counterpart of this request, if any */
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
154} aio_cb;
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req; 226typedef eio_req *aio_req;
163typedef aio_cb *aio_req_ornot; 227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
164 229
165enum { 230static SV *on_next_submit;
166 PRI_MIN = -4, 231static int next_pri = EIO_PRI_DEFAULT;
167 PRI_MAX = 4, 232static int max_outstanding;
168 233
169 DEFAULT_PRI = 0, 234static s_epipe respipe;
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173 235
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return;
196
197 if (!main_sig)
198 return;
199
200 sigemptyset (&ss);
201 sigaddset (&ss, main_sig);
202 pthread_sigmask (SIG_BLOCK, &ss, 0);
203}
204
205void unblock_sig ()
206{
207 sigset_t ss;
208
209 if (--block_sig_level)
210 return;
211
212 if (!main_sig)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 {
245 closedir (wrk->dirp);
246 wrk->dirp = 0;
247 }
248
249 if (wrk->dbuf)
250 {
251 free (wrk->dbuf);
252 wrk->dbuf = 0;
253 }
254}
255
256static void worker_free (worker *wrk)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0;
351
352 --q->size;
353
354 for (pri = NUM_PRI; pri--; )
355 {
356 aio_req req = q->qs[pri];
357
358 if (req)
359 {
360 if (!(q->qs[pri] = req->next))
361 q->qe[pri] = 0;
362
363 return req;
364 }
365 }
366
367 abort ();
368}
369
370static int poll_cb ();
371static int req_invoke (aio_req req);
372static void req_destroy (aio_req req); 236static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 237static void req_cancel (aio_req req);
374 238
239static void
240want_poll (void)
241{
242 /* write a dummy byte to the pipe so fh becomes ready */
243 s_epipe_signal (&respipe);
244}
245
246static void
247done_poll (void)
248{
249 /* read any signals sent by the worker threads */
250 s_epipe_drain (&respipe);
251}
252
375/* must be called at most once */ 253/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 254static SV *
255req_sv (aio_req req, HV *stash)
377{ 256{
378 if (!req->self) 257 if (!req->self)
379 { 258 {
380 req->self = (SV *)newHV (); 259 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 261 }
383 262
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 264}
386 265
387static aio_req SvAIO_REQ (SV *sv) 266static SV *
267newSVaio_wd (aio_wd wd)
268{
269 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
270}
271
272static aio_req
273SvAIO_REQ (SV *sv)
388{ 274{
389 MAGIC *mg; 275 MAGIC *mg;
390 276
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 277 if (!SvROK (sv)
278 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279 || (SvSTASH (SvRV (sv)) != aio_grp_stash
280 && SvSTASH (SvRV (sv)) != aio_req_stash
281 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 282 croak ("object of class IO::AIO::REQ expected");
393 283
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 285
396 return mg ? (aio_req)mg->mg_ptr : 0; 286 return mg ? (aio_req)mg->mg_ptr : 0;
397} 287}
398 288
289static aio_wd
290SvAIO_WD (SV *sv)
291{
292 if (!SvROK (sv)
293 || SvTYPE (SvRV (sv)) != SVt_PVMG
294 || SvSTASH (SvRV (sv)) != aio_wd_stash)
295 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296
297 return (aio_wd)(long)SvIVX (SvRV (sv));
298}
299
300static void
399static void aio_grp_feed (aio_req grp) 301aio_grp_feed (aio_req grp)
400{ 302{
401 block_sig (); 303 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 304 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 305 dSP;
410 306
411 ENTER; 307 ENTER;
412 SAVETMPS; 308 SAVETMPS;
413 PUSHMARK (SP); 309 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 311 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 313 SPAGAIN;
418 FREETMPS; 314 FREETMPS;
419 LEAVE; 315 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 316 }
430
431 unblock_sig ();
432} 317}
433 318
434static void aio_grp_dec (aio_req grp) 319static void
320req_submit (eio_req *req)
435{ 321{
436 --grp->size; 322 eio_submit (req);
437 323
438 /* call feeder, if applicable */ 324 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 325 {
444 block_sig (); 326 dSP;
327 SV *cb = sv_2mortal (on_next_submit);
445 328
446 if (!req_invoke (grp)) 329 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 330
453 req_destroy (grp); 331 PUSHMARK (SP);
454 unblock_sig (); 332 PUTBACK;
333 call_sv (cb, G_DISCARD | G_EVAL);
455 } 334 }
456} 335}
457 336
337static int
458static int req_invoke (aio_req req) 338req_invoke (eio_req *req)
459{ 339{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
464 342
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
466 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
467 ENTER; 349 ENTER;
468 SAVETMPS; 350 SAVETMPS;
469 PUSHMARK (SP); 351 PUSHMARK (SP);
470 EXTEND (SP, 1); 352 EXTEND (SP, 1);
471 353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
356 {
357 sv_result = sv_result_cache; sv_result_cache = 0;
358 SvIV_set (sv_result, req->result);
359 SvIOK_only (sv_result);
360 }
361 else
362 {
363 sv_result = newSViv (req->result);
364 SvREADONLY_on (sv_result);
365 }
366
472 switch (req->type) 367 switch (req->type)
473 { 368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
474 case REQ_READDIR: 373 case EIO_READDIR:
475 { 374 {
476 SV *rv = &PL_sv_undef; 375 SV *rv = &PL_sv_undef;
477 376
478 if (req->result >= 0) 377 if (req->result >= 0)
479 { 378 {
480 int i; 379 int i;
481 char *buf = req->ptr2; 380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 382 AV *av = newAV ();
483 383
484 av_extend (av, req->result - 1); 384 av_extend (av, req->result - 1);
485 385
486 for (i = 0; i < req->result; ++i) 386 for (i = 0; i < req->result; ++i)
487 { 387 {
488 SV *sv = newSVpv (buf, 0); 388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 391
392 if (req->int1 & EIO_READDIR_CUSTOM2)
393 {
394 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
395 AV *avent = newAV ();
396
397 av_extend (avent, 2);
398
399 if (!sv_type [ent->type])
400 {
401 sv_type [ent->type] = newSViv (ent->type);
402 SvREADONLY_on (sv_type [ent->type]);
403 }
404
405 av_store (avent, 0, namesv);
406 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
407 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
408
409 av_store (av, i, newRV_noinc ((SV *)avent));
410 }
411 else
490 av_store (av, i, sv); 412 av_store (av, i, namesv);
413
414 ++ent;
415 }
416 else
417 {
418 SV *name = newSVpv (names, 0);
419 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 420 names += SvCUR (name) + 1;
421 }
492 } 422 }
493 423
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 424 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 425 }
496 426
497 PUSHs (rv); 427 PUSHs (rv);
428
429 if (req->int1 & EIO_READDIR_CUSTOM1)
430 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 431 }
499 break; 432 break;
500 433
501 case REQ_OPEN: 434 case EIO_OPEN:
502 { 435 {
503 /* convert fd to fh */ 436 /* convert fd to fh */
504 SV *fh; 437 SV *fh = &PL_sv_undef;
505 438
506 PUSHs (sv_2mortal (newSViv (req->result))); 439 if (req->result >= 0)
507 PUTBACK; 440 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 441 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 442 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
443 char sym [64];
444 int symlen;
445
446 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
447 gv_init (gv, aio_stash, sym, symlen, 0);
510 448
511 fh = POPs; 449 symlen = snprintf (
512 PUSHMARK (SP); 450 sym,
451 sizeof (sym),
452 "%s&=%d",
453 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454 (int)req->result
455 );
456
457 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458 fh = (SV *)gv;
459 }
460
513 XPUSHs (fh); 461 PUSHs (fh);
514 } 462 }
515 break; 463 break;
516 464
465 case EIO_STATVFS:
466 case EIO_FSTATVFS:
467 {
468 SV *rv = &PL_sv_undef;
469
470#ifndef _WIN32
471 if (req->result >= 0)
472 {
473 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474 HV *hv = newHV ();
475
476 rv = sv_2mortal (newRV_noinc ((SV *)hv));
477
478 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
479 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
480 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
481 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
482 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
483 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
484 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
485 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
486 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
487 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
488 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489 }
490#endif
491
492 PUSHs (rv);
493 }
494
495 break;
496
517 case REQ_GROUP: 497 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 498 req->int1 = 2; /* mark group as finished */
519 499
520 if (req->sv1) 500 if (req->sv1)
521 { 501 {
522 int i; 502 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 506 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 507 PUSHs (*av_fetch (av, i, 0));
528 } 508 }
529 break; 509 break;
530 510
531 case REQ_NOP: 511 case EIO_NOP:
532 case REQ_BUSY: 512 case EIO_BUSY:
533 break; 513 break;
534 514
535 case REQ_READLINK: 515 case EIO_READLINK:
516 case EIO_REALPATH:
536 if (req->result > 0) 517 if (req->result > 0)
518 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
519 break;
520
521 case EIO_STAT:
522 case EIO_LSTAT:
523 case EIO_FSTAT:
524 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
525
526 if (!(PL_laststatval = req->result))
527 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
528 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
529
530 PUSHs (sv_result);
531 break;
532
533 case EIO_SEEK:
534 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
535 break;
536
537 case EIO_READ:
538 {
539 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
540 *SvEND (req->sv2) = 0;
541 SvPOK_only (req->sv2);
542 SvSETMAGIC (req->sv2);
543 PUSHs (sv_result);
544 }
545 break;
546
547 case EIO_CUSTOM:
548 if (req->feed == fiemap)
537 { 549 {
538 SvCUR_set (req->sv2, req->result); 550#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 551 if (!req->result)
552 {
553 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
554
555 if (fiemap->fm_extent_count)
556 {
557 AV *av = newAV ();
558 int i;
559
560 while (fiemap->fm_mapped_extents)
561 {
562 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
563 AV *ext_av = newAV ();
564
565 av_store (ext_av, 3, newSVuv (extent->fe_flags));
566 av_store (ext_av, 2, newSVval64 (extent->fe_length));
567 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
568 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
569
570 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
571 }
572
573 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
574 }
575 else
576 {
577 SvIV_set (sv_result, fiemap->fm_mapped_extents);
578 PUSHs (sv_result);
579 }
580 }
581#endif
541 } 582 }
583 else
584 PUSHs (sv_result);
542 break; 585 break;
543 586
544 case REQ_STAT: 587 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 588 if (req->result > 0)
546 case REQ_FSTAT: 589 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 590 /* FALLTHROUGH */
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break;
552
553 case REQ_READ:
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result)));
557 break;
558 591
559 default: 592 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 593 PUSHs (sv_result);
561 break; 594 break;
562 } 595 }
563 596
564 errno = req->errorno; 597 errno = req->errorno;
565 598
566 PUTBACK; 599 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 600 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 601 SPAGAIN;
602
603 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
604 SvREFCNT_dec (sv_result);
605 else
606 sv_result_cache = sv_result;
569 607
570 FREETMPS; 608 FREETMPS;
571 LEAVE; 609 LEAVE;
610
611 PUTBACK;
572 } 612 }
573 613
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 614 return !!SvTRUE (ERRSV);
589} 615}
590 616
617static void
591static void req_destroy (aio_req req) 618req_destroy (aio_req req)
592{ 619{
593 if (req->self) 620 if (req->self)
594 { 621 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 622 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 623 SvREFCNT_dec (req->self);
597 } 624 }
598 625
599 SvREFCNT_dec (req->sv1); 626 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 627 SvREFCNT_dec (req->sv2);
628 SvREFCNT_dec (req->sv3);
629 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 630 SvREFCNT_dec (req->callback);
602 631
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 632 free (req);
607} 633}
608 634
635static void
609static void req_cancel_subs (aio_req grp) 636req_cancel_subs (aio_req grp)
610{ 637{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 638 if (grp->type != EIO_GROUP)
614 return; 639 return;
615 640
616 SvREFCNT_dec (grp->sv2); 641 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 642 grp->sv2 = 0;
618 643
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 644 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 645}
622 646
623static void req_cancel (aio_req req) 647static void ecb_cold
648create_respipe (void)
624{ 649{
625 req->flags |= FLAG_CANCELLED; 650 if (s_epipe_renew (&respipe))
626 651 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 652}
629 653
630X_THREAD_PROC (aio_proc); 654static void
631 655poll_wait (void)
632static void start_thread (void)
633{ 656{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 657 while (eio_nreqs ())
730 { 658 {
731 int size; 659 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 660
661 X_LOCK (reslock);
733 size = res_queue.size; 662 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 663 X_UNLOCK (reslock);
735 664
736 if (size) 665 if (size)
737 return; 666 return;
738 667
739 maybe_start_thread (); 668 etp_maybe_start_thread ();
740 669
741 FD_ZERO(&rfd); 670 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 671 }
746} 672}
747 673
748static int poll_cb () 674static int
675poll_cb (void)
749{ 676{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 677 for (;;)
763 { 678 {
764 for (;;) 679 int res = eio_poll ();
680
681 if (res > 0)
682 croak (0);
683
684 if (!max_outstanding || max_outstanding > eio_nreqs ())
685 return res;
686
687 poll_wait ();
688 }
689}
690
691static void ecb_cold
692reinit (void)
693{
694 create_respipe ();
695
696 if (eio_init (want_poll, done_poll) < 0)
697 croak ("IO::AIO: unable to initialise eio library");
698}
699
700/*****************************************************************************/
701
702#if !_POSIX_MAPPED_FILES
703# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
704# define munmap(addr,length) EIO_ENOSYS ()
705#endif
706
707#if !_POSIX_MEMORY_PROTECTION
708# define mprotect(addr,len,prot) EIO_ENOSYS ()
709# define PROT_NONE 0
710# define PROT_WRITE 0
711# define MAP_PRIVATE 0
712# define MAP_SHARED 0
713# define MAP_FIXED 0
714#endif
715
716#define MMAP_MAGIC PERL_MAGIC_ext
717
718static int ecb_cold
719mmap_free (pTHX_ SV *sv, MAGIC *mg)
720{
721 int old_errno = errno;
722 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723 errno = old_errno;
724
725 mg->mg_obj = 0; /* just in case */
726
727 SvREADONLY_off (sv);
728
729 if (SvPVX (sv) != mg->mg_ptr)
730 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732 SvCUR_set (sv, 0);
733 SvPVX (sv) = 0;
734 SvOK_off (sv);
735
736 return 0;
737}
738
739static MGVTBL mmap_vtbl = {
740 0, 0, 0, 0, mmap_free
741};
742
743/*****************************************************************************/
744
745static SV *
746get_cb (SV *cb_sv)
747{
748 SvGETMAGIC (cb_sv);
749 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
750}
751
752static aio_req ecb_noinline
753dreq (SV *callback)
754{
755 SV *cb_cv;
756 aio_req req;
757 int req_pri = next_pri;
758 next_pri = EIO_PRI_DEFAULT;
759
760 cb_cv = get_cb (callback);
761
762 req = calloc (sizeof (*req), 1);
763 if (!req)
764 croak ("out of memory during eio_req allocation");
765
766 req->callback = SvREFCNT_inc (cb_cv);
767 req->pri = req_pri;
768
769 return req;
770}
771
772#define dREQ \
773 aio_req req = dreq (callback); \
774
775#define REQ_SEND \
776 PUTBACK; \
777 req_submit (req); \
778 SPAGAIN; \
779 \
780 if (GIMME_V != G_VOID) \
781 XPUSHs (req_sv (req, aio_req_stash));
782
783ecb_inline void
784req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
785{
786 if (expect_false (SvROK (path)))
787 {
788 SV *rv = SvRV (path);
789 SV *wdob;
790
791 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 792 {
766 maybe_start_thread (); 793 path = AvARRAY (rv)[1];
794 wdob = AvARRAY (rv)[0];
767 795
768 X_LOCK (reslock); 796 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 797 {
773 --npending; 798 *wd = SvAIO_WD (wdob);
774 799 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 800 }
796 else 801 else
797 { 802 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 803 }
804 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
805 {
806 *wd = (aio_wd)(long)SvIVX (rv);
807 *wdsv = SvREFCNT_inc_NN (rv);
808 *ptr = ".";
809 return; /* path set to "." */
810 }
811 else
812 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
813 }
821 814
822 if (nreqs <= max_outstanding) 815 *pathsv = newSVsv (path);
816 *ptr = SvPVbyte_nolen (*pathsv);
817}
818
819static void ecb_noinline
820req_set_path1 (aio_req req, SV *path)
821{
822 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
823}
824
825static void ecb_noinline
826req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
827{
828 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
829
830 switch (SvTYPE (rv))
831 {
832 case SVt_PVIO:
833 case SVt_PVLV:
834 case SVt_PVGV:
835 req->type = type_fh;
836 req->sv1 = newSVsv (fh_or_path);
837 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 838 break;
824 839
825 poll_wait (); 840 default:
826 841 req->type = type_path;
827 ++maxreqs; 842 req_set_path1 (req, fh_or_path);
843 break;
828 } 844 }
829
830 unblock_sig ();
831 return count;
832} 845}
833 846
834/*****************************************************************************/ 847XS(boot_IO__AIO) ecb_cold;
835/* work around various missing functions */
836 848
837#if !HAVE_PREADWRITE
838# define pread aio_pread
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055}
1056
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO 849MODULE = IO::AIO PACKAGE = IO::AIO
1379 850
1380PROTOTYPES: ENABLE 851PROTOTYPES: ENABLE
1381 852
1382BOOT: 853BOOT:
1383{ 854{
855 static const struct {
856 const char *name;
857 IV iv;
858 } *civ, const_iv[] = {
859# define const_niv(name, value) { # name, (IV) value },
860# define const_iv(name) { # name, (IV) name },
861# define const_eio(name) { # name, (IV) EIO_ ## name },
862
863 /* you have to re-run ./gendef0 after adding/Removing any constants here */
864
865 const_iv (ENOSYS)
866 const_iv (EXDEV)
867 const_iv (EBADR)
868
869 const_iv (O_RDONLY)
870 const_iv (O_WRONLY)
871 const_iv (O_RDWR)
872 const_iv (O_CREAT)
873 const_iv (O_TRUNC)
874 const_iv (O_EXCL)
875 const_iv (O_APPEND)
876
877 const_iv (O_ASYNC)
878 const_iv (O_DIRECT)
879 const_iv (O_NOATIME)
880
881 const_iv (O_CLOEXEC)
882 const_iv (O_NOCTTY)
883 const_iv (O_NOFOLLOW)
884 const_iv (O_NONBLOCK)
885 const_iv (O_EXEC)
886 const_iv (O_SEARCH)
887 const_iv (O_DIRECTORY)
888 const_iv (O_DSYNC)
889 const_iv (O_RSYNC)
890 const_iv (O_SYNC)
891 const_iv (O_TTY_INIT)
892
893 const_iv (S_IFIFO)
894 const_iv (S_IFCHR)
895 const_iv (S_IFBLK)
896 const_iv (S_IFLNK)
897 const_iv (S_IFREG)
898 const_iv (S_IFDIR)
899 const_iv (S_IFWHT)
900 const_iv (S_IFSOCK)
901 const_iv (S_IFMT)
902
903 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
904 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
909
910 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
911 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
912 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
915
916 const_iv (ST_RDONLY)
917 const_iv (ST_NOSUID)
918 const_iv (ST_NODEV)
919 const_iv (ST_NOEXEC)
920 const_iv (ST_SYNCHRONOUS)
921 const_iv (ST_MANDLOCK)
922 const_iv (ST_WRITE)
923 const_iv (ST_APPEND)
924 const_iv (ST_IMMUTABLE)
925 const_iv (ST_NOATIME)
926 const_iv (ST_NODIRATIME)
927 const_iv (ST_RELATIME)
928
929 const_iv (PROT_NONE)
930 const_iv (PROT_EXEC)
931 const_iv (PROT_READ)
932 const_iv (PROT_WRITE)
933
934 /*const_iv (MAP_FIXED)*/
935 const_iv (MAP_PRIVATE)
936 const_iv (MAP_SHARED)
937 const_iv (MAP_ANONYMOUS)
938
939 /* linuxish */
940 const_iv (MAP_HUGETLB)
941 const_iv (MAP_LOCKED)
942 const_iv (MAP_NORESERVE)
943 const_iv (MAP_POPULATE)
944 const_iv (MAP_NONBLOCK)
945
946 const_iv (FIEMAP_FLAG_SYNC)
947 const_iv (FIEMAP_FLAG_XATTR)
948 const_iv (FIEMAP_FLAGS_COMPAT)
949 const_iv (FIEMAP_EXTENT_LAST)
950 const_iv (FIEMAP_EXTENT_UNKNOWN)
951 const_iv (FIEMAP_EXTENT_DELALLOC)
952 const_iv (FIEMAP_EXTENT_ENCODED)
953 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
954 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
955 const_iv (FIEMAP_EXTENT_DATA_INLINE)
956 const_iv (FIEMAP_EXTENT_DATA_TAIL)
957 const_iv (FIEMAP_EXTENT_UNWRITTEN)
958 const_iv (FIEMAP_EXTENT_MERGED)
959 const_iv (FIEMAP_EXTENT_SHARED)
960
961 const_iv (SPLICE_F_MOVE)
962 const_iv (SPLICE_F_NONBLOCK)
963 const_iv (SPLICE_F_MORE)
964 const_iv (SPLICE_F_GIFT)
965
966 const_iv (SEEK_DATA)
967 const_iv (SEEK_HOLE)
968
969 /* libeio constants */
970 const_eio (SEEK_SET)
971 const_eio (SEEK_CUR)
972 const_eio (SEEK_END)
973
974 const_eio (MCL_FUTURE)
975 const_eio (MCL_CURRENT)
976
977 const_eio (MS_ASYNC)
978 const_eio (MS_INVALIDATE)
979 const_eio (MS_SYNC)
980
981 const_eio (MT_MODIFY)
982
983 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
984 const_eio (SYNC_FILE_RANGE_WRITE)
985 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
986
987 const_eio (FALLOC_FL_KEEP_SIZE)
988 const_eio (FALLOC_FL_PUNCH_HOLE)
989
990 const_eio (READDIR_DENTS)
991 const_eio (READDIR_DIRS_FIRST)
992 const_eio (READDIR_STAT_ORDER)
993 const_eio (READDIR_FOUND_UNKNOWN)
994
995 const_eio (DT_UNKNOWN)
996 const_eio (DT_FIFO)
997 const_eio (DT_CHR)
998 const_eio (DT_DIR)
999 const_eio (DT_BLK)
1000 const_eio (DT_REG)
1001 const_eio (DT_LNK)
1002 const_eio (DT_SOCK)
1003 const_eio (DT_WHT)
1004 };
1005
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 1006 aio_stash = gv_stashpv ("IO::AIO" , 1);
1007 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1008 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1009 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 1010
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1011 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1012 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 1013
1403 if (!create_pipe (respipe)) 1014 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1015
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1016 reinit ();
1407} 1017}
1408 1018
1409void 1019void
1020reinit ()
1021 PROTOTYPE:
1022
1023void
1410max_poll_reqs (int nreqs) 1024max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1025 PROTOTYPE: $
1412 CODE: 1026 CODE:
1413 max_poll_reqs = nreqs; 1027 eio_set_max_poll_reqs (nreqs);
1414 1028
1415void 1029void
1416max_poll_time (double nseconds) 1030max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1031 PROTOTYPE: $
1418 CODE: 1032 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1033 eio_set_max_poll_time (nseconds);
1420 1034
1421void 1035void
1422min_parallel (int nthreads) 1036min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1037 PROTOTYPE: $
1432 CODE: 1038 CODE:
1433 set_max_idle (nthreads); 1039 eio_set_min_parallel (nthreads);
1434 1040
1435int 1041void
1436max_outstanding (int maxreqs) 1042max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1043 PROTOTYPE: $
1438 CODE: 1044 CODE:
1439 RETVAL = max_outstanding; 1045 eio_set_max_parallel (nthreads);
1046
1047void
1048max_idle (unsigned int nthreads)
1049 PROTOTYPE: $
1050 CODE:
1051 eio_set_max_idle (nthreads);
1052
1053void
1054idle_timeout (unsigned int seconds)
1055 PROTOTYPE: $
1056 CODE:
1057 eio_set_idle_timeout (seconds);
1058
1059void
1060max_outstanding (unsigned int maxreqs)
1061 PROTOTYPE: $
1062 CODE:
1440 max_outstanding = maxreqs; 1063 max_outstanding = maxreqs;
1441 OUTPUT: 1064
1442 RETVAL 1065void
1066aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1067 PPCODE:
1068{
1069 dREQ;
1070
1071 req->type = EIO_WD_OPEN;
1072 req_set_path1 (req, pathname);
1073
1074 REQ_SEND;
1075}
1443 1076
1444void 1077void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1078aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1079 PPCODE:
1448{ 1080{
1449 dREQ; 1081 dREQ;
1450 1082
1451 req->type = REQ_OPEN; 1083 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1084 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1085 req->int1 = flags;
1455 req->mode = mode; 1086 req->int2 = mode;
1456 1087
1457 REQ_SEND; 1088 REQ_SEND;
1458} 1089}
1459 1090
1460void 1091void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1092aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1093 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1094 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1095 aio_fdatasync = EIO_FDATASYNC
1096 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1097 PPCODE:
1468{ 1098{
1099 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1100 dREQ;
1470 1101
1471 req->type = ix; 1102 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1103 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1104 req->int1 = fd;
1474 1105
1475 REQ_SEND (req); 1106 REQ_SEND;
1107}
1108
1109void
1110aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1111 PPCODE:
1112{
1113 int fd = s_fileno_croak (fh, 0);
1114 dREQ;
1115
1116 req->type = EIO_SYNC_FILE_RANGE;
1117 req->sv1 = newSVsv (fh);
1118 req->int1 = fd;
1119 req->offs = offset;
1120 req->size = nbytes;
1121 req->int2 = flags;
1122
1123 REQ_SEND;
1124}
1125
1126void
1127aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1128 PPCODE:
1129{
1130 int fd = s_fileno_croak (fh, 0);
1131 dREQ;
1132
1133 req->type = EIO_FALLOCATE;
1134 req->sv1 = newSVsv (fh);
1135 req->int1 = fd;
1136 req->int2 = mode;
1137 req->offs = offset;
1138 req->size = len;
1139
1140 REQ_SEND;
1141}
1142
1143void
1144aio_close (SV *fh, SV *callback=&PL_sv_undef)
1145 PPCODE:
1146{
1147 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1148 int fd = s_fileno_croak (fh, 0);
1149 dREQ;
1150
1151 if (expect_false (close_fd < 0))
1152 {
1153 int pipefd [2];
1154
1155 if (
1156#ifdef _WIN32
1157 _pipe (pipefd, 1, _O_BINARY) < 0
1158#else
1159 pipe (pipefd) < 0
1160 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1161#endif
1162 || close (pipefd [1]) < 0
1163 )
1164 abort (); /*D*/
1165
1166 close_fd = pipefd [0];
1167 }
1168
1169 req->type = EIO_DUP2;
1170 req->int1 = close_fd;
1171 req->sv2 = newSVsv (fh);
1172 req->int2 = fd;
1173
1174 REQ_SEND;
1175}
1176
1177void
1178aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1179 PPCODE:
1180{
1181 int fd = s_fileno_croak (fh, 0);
1182 dREQ;
1183
1184 req->type = EIO_SEEK;
1185 req->sv1 = newSVsv (fh);
1186 req->int1 = fd;
1187 req->offs = SvVAL64 (offset);
1188 req->int2 = whence;
1189
1190 REQ_SEND;
1476} 1191}
1477 1192
1478void 1193void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1194aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1195 ALIAS:
1481 aio_read = REQ_READ 1196 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1197 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1198 PPCODE:
1485{ 1199{
1486 STRLEN svlen; 1200 STRLEN svlen;
1201 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1202 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1203 UV len = SvUV (length);
1489 1204
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1205 if (dataoffset < 0)
1494 dataoffset += svlen; 1206 dataoffset += svlen;
1495 1207
1496 if (dataoffset < 0 || dataoffset > svlen) 1208 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1209 croak ("dataoffset outside of data scalar");
1498 1210
1499 if (ix == REQ_WRITE) 1211 if (ix == EIO_WRITE)
1500 { 1212 {
1501 /* write: check length and adjust. */ 1213 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1214 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1215 len = svlen - dataoffset;
1504 } 1216 }
1505 else 1217 else
1506 { 1218 {
1507 /* read: grow scalar as necessary */ 1219 /* read: check type and grow scalar as necessary */
1220 SvUPGRADE (data, SVt_PV);
1221 if (SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1222 svptr = SvGROW (data, len + dataoffset + 1);
1223 else if (SvCUR (data) < len + dataoffset)
1224 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1225 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1226
1514 { 1227 {
1515 dREQ; 1228 dREQ;
1516 1229
1517 req->type = ix; 1230 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1232 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1234 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1235 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1236 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1237 req->stroffset = dataoffset;
1526 1238
1527 if (!SvREADONLY (data)) 1239 if (!SvREADONLY (data))
1528 { 1240 {
1529 SvREADONLY_on (data); 1241 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1245 REQ_SEND;
1534 } 1246 }
1535} 1247}
1536 1248
1537void 1249void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1251 ALIAS:
1252 aio_readlink = EIO_READLINK
1253 aio_realpath = EIO_REALPATH
1540 PPCODE: 1254 PPCODE:
1541{ 1255{
1542 SV *data;
1543 dREQ; 1256 dREQ;
1544 1257
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1258 req->type = ix;
1549 req->sv1 = newSVsv (path); 1259 req_set_path1 (req, pathname);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1260
1554 REQ_SEND; 1261 REQ_SEND;
1555} 1262}
1556 1263
1557void 1264void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1266 PPCODE:
1561{ 1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1270 dREQ;
1563 1271
1564 req->type = REQ_SENDFILE; 1272 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1273 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1274 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1275 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1276 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1277 req->offs = in_offset;
1570 req->size = length; 1278 req->size = length;
1571 1279
1572 REQ_SEND; 1280 REQ_SEND;
1573} 1281}
1574 1282
1575void 1283void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1285 PPCODE:
1579{ 1286{
1287 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1288 dREQ;
1581 1289
1582 req->type = REQ_READAHEAD; 1290 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1291 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1292 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1293 req->offs = offset;
1586 req->size = length; 1294 req->size = length;
1587 1295
1588 REQ_SEND; 1296 REQ_SEND;
1589} 1297}
1590 1298
1591void 1299void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1301 ALIAS:
1594 aio_stat = REQ_STAT 1302 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1305 PPCODE:
1597{ 1306{
1598 dREQ; 1307 dREQ;
1599 1308
1600 req->ptr2 = malloc (sizeof (Stat_t)); 1309 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1601 if (!req->ptr2)
1602 {
1603 req_destroy (req);
1604 croak ("out of memory during aio_stat statdata allocation");
1605 }
1606
1607 req->flags |= FLAG_PTR2_FREE;
1608 req->sv1 = newSVsv (fh_or_path);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 }
1615 else
1616 {
1617 req->type = REQ_FSTAT;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1619 }
1620 1310
1621 REQ_SEND; 1311 REQ_SEND;
1622} 1312}
1313
1314UV
1315major (UV dev)
1316 ALIAS:
1317 minor = 1
1318 CODE:
1319 RETVAL = ix ? major (dev) : minor (dev);
1320 OUTPUT:
1321 RETVAL
1322
1323UV
1324makedev (UV maj, UV min)
1325 CODE:
1326 RETVAL = makedev (maj, min);
1327 OUTPUT:
1328 RETVAL
1623 1329
1624void 1330void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1331aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1332 PPCODE:
1627{ 1333{
1628 dREQ; 1334 dREQ;
1629 1335
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1336 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1337 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1338 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1339
1645 REQ_SEND; 1340 REQ_SEND;
1646} 1341}
1647 1342
1648void 1343void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1344aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1650 PPCODE: 1345 PPCODE:
1651{ 1346{
1652 dREQ; 1347 dREQ;
1653 1348
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1349 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1350 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1351
1668 REQ_SEND; 1352 REQ_SEND;
1669} 1353}
1670 1354
1671void 1355void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1356aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1673 PPCODE: 1357 PPCODE:
1674{ 1358{
1675 dREQ; 1359 dREQ;
1676 1360
1677 req->mode = mode; 1361 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1362 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1363
1691 REQ_SEND; 1364 REQ_SEND;
1692} 1365}
1693 1366
1694void 1367void
… …
1697{ 1370{
1698 dREQ; 1371 dREQ;
1699 1372
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1373 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1374 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1375 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703 1376
1704 if (SvPOK (fh_or_path)) 1377 REQ_SEND;
1705 { 1378}
1706 req->type = REQ_CHOWN; 1379
1707 req->ptr1 = SvPVbyte_nolen (req->sv1); 1380void
1708 } 1381aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1709 else 1382 PPCODE:
1710 { 1383{
1711 req->type = REQ_FCHOWN; 1384 dREQ;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1385
1713 } 1386 req->type = EIO_READDIR;
1387 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1388
1389 if (flags & EIO_READDIR_DENTS)
1390 req->int1 |= EIO_READDIR_CUSTOM2;
1391
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->type = EIO_MKDIR;
1404 req->int2 = mode;
1405 req_set_path1 (req, pathname);
1714 1406
1715 REQ_SEND; 1407 REQ_SEND;
1716} 1408}
1717 1409
1718void 1410void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1412 ALIAS:
1721 aio_unlink = REQ_UNLINK 1413 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1414 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1415 aio_readdir = EIO_READDIR
1724 PPCODE: 1416 PPCODE:
1725{ 1417{
1726 dREQ; 1418 dREQ;
1727 1419
1728 req->type = ix; 1420 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1421 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745 1422
1746 REQ_SEND; 1423 REQ_SEND;
1747} 1424}
1748 1425
1749void 1426void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS: 1428 ALIAS:
1752 aio_link = REQ_LINK 1429 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1430 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1431 aio_rename = EIO_RENAME
1755 PPCODE: 1432 PPCODE:
1756{ 1433{
1434 eio_wd wd2 = 0;
1757 dREQ; 1435 dREQ;
1758 1436
1759 req->type = ix; 1437 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1438 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1440 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1441
1765 REQ_SEND; 1442 REQ_SEND;
1766} 1443}
1767 1444
1768void 1445void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1770 PPCODE: 1447 PPCODE:
1771{ 1448{
1772 dREQ; 1449 dREQ;
1773 1450
1774 req->type = REQ_MKNOD; 1451 req->type = EIO_MKNOD;
1775 req->sv1 = newSVsv (pathname);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1);
1777 req->mode = (mode_t)mode; 1452 req->int2 = (mode_t)mode;
1778 req->offs = dev; 1453 req->offs = dev;
1454 req_set_path1 (req, pathname);
1779 1455
1780 REQ_SEND; 1456 REQ_SEND;
1781} 1457}
1782 1458
1783void 1459void
1460aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1461 ALIAS:
1462 aio_mtouch = EIO_MTOUCH
1463 aio_msync = EIO_MSYNC
1464 PPCODE:
1465{
1466 STRLEN svlen;
1467 char *svptr = SvPVbyte (data, svlen);
1468 UV len = SvUV (length);
1469
1470 if (offset < 0)
1471 offset += svlen;
1472
1473 if (offset < 0 || offset > svlen)
1474 croak ("offset outside of scalar");
1475
1476 if (!SvOK (length) || len + offset > svlen)
1477 len = svlen - offset;
1478
1479 {
1480 dREQ;
1481
1482 req->type = ix;
1483 req->sv2 = SvREFCNT_inc (data);
1484 req->ptr2 = (char *)svptr + offset;
1485 req->size = len;
1486 req->int1 = flags;
1487
1488 REQ_SEND;
1489 }
1490}
1491
1492void
1493aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1494 PPCODE:
1495{
1496 STRLEN svlen;
1497 char *svptr = SvPVbyte (data, svlen);
1498 UV len = SvUV (length);
1499
1500 if (offset < 0)
1501 offset += svlen;
1502
1503 if (offset < 0 || offset > svlen)
1504 croak ("offset outside of scalar");
1505
1506 if (!SvOK (length) || len + offset > svlen)
1507 len = svlen - offset;
1508
1509 {
1510 dREQ;
1511
1512 req->type = EIO_MLOCK;
1513 req->sv2 = SvREFCNT_inc (data);
1514 req->ptr2 = (char *)svptr + offset;
1515 req->size = len;
1516
1517 REQ_SEND;
1518 }
1519}
1520
1521void
1522aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->type = EIO_MLOCKALL;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531}
1532
1533void
1534aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1535 PPCODE:
1536{
1537 int fd = s_fileno_croak (fh, 0);
1538 dREQ;
1539
1540 req->type = EIO_CUSTOM;
1541 req->sv1 = newSVsv (fh);
1542 req->int1 = fd;
1543
1544 req->feed = fiemap;
1545#if HAVE_FIEMAP
1546 /* keep our fingers crossed that the next two types are 64 bit */
1547 req->offs = start;
1548 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1549 req->int2 = flags;
1550 req->int3 = SvOK (count) ? SvIV (count) : -1;
1551#endif
1552
1553 REQ_SEND;
1554}
1555
1556void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1557aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1558 PPCODE:
1786{ 1559{
1787 dREQ; 1560 dREQ;
1788 1561
1789 req->type = REQ_BUSY; 1562 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1563 req->nv1 = delay < 0. ? 0. : delay;
1791 1564
1792 REQ_SEND; 1565 REQ_SEND;
1793} 1566}
1794 1567
1795void 1568void
1796aio_group (SV *callback=&PL_sv_undef) 1569aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1570 PPCODE:
1799{ 1571{
1800 dREQ; 1572 dREQ;
1801 1573
1802 req->type = REQ_GROUP; 1574 req->type = EIO_GROUP;
1803 1575
1804 req_send (req); 1576 req_submit (req);
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1577 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1578}
1807 1579
1808void 1580void
1809aio_nop (SV *callback=&PL_sv_undef) 1581aio_nop (SV *callback=&PL_sv_undef)
1582 ALIAS:
1583 aio_nop = EIO_NOP
1584 aio_sync = EIO_SYNC
1810 PPCODE: 1585 PPCODE:
1811{ 1586{
1812 dREQ; 1587 dREQ;
1813 1588
1814 req->type = REQ_NOP; 1589 req->type = ix;
1815 1590
1816 REQ_SEND; 1591 REQ_SEND;
1817} 1592}
1818 1593
1819int 1594int
1820aioreq_pri (int pri = 0) 1595aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1596 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1597 RETVAL = next_pri;
1824 if (items > 0) 1598 if (items > 0)
1825 { 1599 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1600 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1601 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1602 next_pri = pri;
1829 } 1603 }
1830 OUTPUT: 1604 OUTPUT:
1831 RETVAL 1605 RETVAL
1832 1606
1833void 1607void
1834aioreq_nice (int nice = 0) 1608aioreq_nice (int nice = 0)
1835 CODE: 1609 CODE:
1836 nice = next_pri - nice; 1610 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1611 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1612 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1613 next_pri = nice;
1840 1614
1841void 1615void
1842flush () 1616flush ()
1843 PROTOTYPE:
1844 CODE: 1617 CODE:
1845 while (nreqs) 1618 while (eio_nreqs ())
1846 { 1619 {
1847 poll_wait (); 1620 poll_wait ();
1848 poll_cb (); 1621 poll_cb ();
1849 } 1622 }
1850 1623
1851int 1624int
1852poll() 1625poll ()
1853 PROTOTYPE:
1854 CODE: 1626 CODE:
1855 poll_wait (); 1627 poll_wait ();
1856 RETVAL = poll_cb (); 1628 RETVAL = poll_cb ();
1857 OUTPUT: 1629 OUTPUT:
1858 RETVAL 1630 RETVAL
1859 1631
1860int 1632int
1861poll_fileno() 1633poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1634 CODE:
1864 RETVAL = respipe [0]; 1635 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1636 OUTPUT:
1866 RETVAL 1637 RETVAL
1867 1638
1868int 1639int
1869poll_cb(...) 1640poll_cb (...)
1870 PROTOTYPE: 1641 PROTOTYPE:
1871 CODE: 1642 CODE:
1872 RETVAL = poll_cb (); 1643 RETVAL = poll_cb ();
1873 OUTPUT: 1644 OUTPUT:
1874 RETVAL 1645 RETVAL
1875 1646
1876void 1647void
1877poll_wait() 1648poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1649 CODE:
1880 poll_wait (); 1650 poll_wait ();
1881 1651
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1652int
1920nreqs() 1653nreqs ()
1921 PROTOTYPE:
1922 CODE: 1654 CODE:
1923 RETVAL = nreqs; 1655 RETVAL = eio_nreqs ();
1924 OUTPUT: 1656 OUTPUT:
1925 RETVAL 1657 RETVAL
1926 1658
1927int 1659int
1928nready() 1660nready ()
1929 PROTOTYPE:
1930 CODE: 1661 CODE:
1931 RETVAL = get_nready (); 1662 RETVAL = eio_nready ();
1932 OUTPUT: 1663 OUTPUT:
1933 RETVAL 1664 RETVAL
1934 1665
1935int 1666int
1936npending() 1667npending ()
1937 PROTOTYPE:
1938 CODE: 1668 CODE:
1939 RETVAL = get_npending (); 1669 RETVAL = eio_npending ();
1940 OUTPUT: 1670 OUTPUT:
1941 RETVAL 1671 RETVAL
1942 1672
1943int 1673int
1944nthreads() 1674nthreads ()
1945 PROTOTYPE:
1946 CODE: 1675 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1676 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1677 OUTPUT:
1951 RETVAL 1678 RETVAL
1952 1679
1680int
1681fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1682 CODE:
1683 RETVAL = posix_fadvise (fh, offset, length, advice);
1684 OUTPUT:
1685 RETVAL
1686
1687IV
1688sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1689 CODE:
1690 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1691 OUTPUT:
1692 RETVAL
1693
1694void
1695mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1696 PPCODE:
1697 sv_unmagic (scalar, MMAP_MAGIC);
1698{
1699 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1700 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1701 if (addr == (void *)-1)
1702 XSRETURN_NO;
1703
1704 sv_force_normal (scalar);
1705
1706 /* we store the length in mg_obj, as namlen is I32 :/ */
1707 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1708 ->mg_obj = (SV *)length;
1709
1710 SvUPGRADE (scalar, SVt_PV); /* nop... */
1711
1712 if (!(prot & PROT_WRITE))
1713 SvREADONLY_on (scalar);
1714
1715 if (SvLEN (scalar))
1716 Safefree (SvPVX (scalar));
1717
1718 SvPVX (scalar) = (char *)addr;
1719 SvCUR_set (scalar, length);
1720 SvLEN_set (scalar, 0);
1721 SvPOK_only (scalar);
1722
1723 XSRETURN_YES;
1724}
1725
1726void
1727munmap (SV *scalar)
1728 CODE:
1729 sv_unmagic (scalar, MMAP_MAGIC);
1730
1731int
1732madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1733 ALIAS:
1734 mprotect = 1
1735 CODE:
1736{
1737 STRLEN svlen;
1738 void *addr = SvPVbyte (scalar, svlen);
1739 size_t len = SvUV (length);
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 addr = (void *)(((intptr_t)addr) + offset);
1751 eio_page_align (&addr, &len);
1752
1753 switch (ix)
1754 {
1755 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1756 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1757 }
1758}
1759 OUTPUT:
1760 RETVAL
1761
1762int
1763munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1764 CODE:
1765{
1766 STRLEN svlen;
1767 void *addr = SvPVbyte (scalar, svlen);
1768 size_t len = SvUV (length);
1769
1770 if (offset < 0)
1771 offset += svlen;
1772
1773 if (offset < 0 || offset > svlen)
1774 croak ("offset outside of scalar");
1775
1776 if (!SvOK (length) || len + offset > svlen)
1777 len = svlen - offset;
1778
1779 addr = (void *)(((intptr_t)addr) + offset);
1780 eio_page_align (&addr, &len);
1781#if _POSIX_MEMLOCK_RANGE
1782 RETVAL = munlock (addr, len);
1783#else
1784 RETVAL = EIO_ENOSYS ();
1785#endif
1786}
1787 OUTPUT:
1788 RETVAL
1789
1790int
1791munlockall ()
1792 CODE:
1793#if _POSIX_MEMLOCK
1794 munlockall ();
1795#else
1796 RETVAL = EIO_ENOSYS ();
1797#endif
1798 OUTPUT:
1799 RETVAL
1800
1801int
1802splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1803 CODE:
1804{
1805#if HAVE_LINUX_SPLICE
1806 loff_t off_in_, off_out_;
1807 RETVAL = splice (
1808 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1809 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1810 length, flags
1811 );
1812#else
1813 RETVAL = EIO_ENOSYS ();
1814#endif
1815}
1816 OUTPUT:
1817 RETVAL
1818
1819int
1820tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1821 CODE:
1822#if HAVE_LINUX_SPLICE
1823 RETVAL = tee (rfh, wfh, length, flags);
1824#else
1825 RETVAL = EIO_ENOSYS ();
1826#endif
1827 OUTPUT:
1828 RETVAL
1829
1830void _on_next_submit (SV *cb)
1831 CODE:
1832 SvREFCNT_dec (on_next_submit);
1833 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1834
1953PROTOTYPES: DISABLE 1835PROTOTYPES: DISABLE
1836
1837MODULE = IO::AIO PACKAGE = IO::AIO::WD
1838
1839BOOT:
1840{
1841 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1842 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1843}
1844
1845void
1846DESTROY (SV *self)
1847 CODE:
1848{
1849 aio_wd wd = SvAIO_WD (self);
1850#if HAVE_AT
1851 {
1852 SV *callback = &PL_sv_undef;
1853 dREQ; /* clobbers next_pri :/ */
1854 next_pri = req->pri; /* restore next_pri */
1855 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1856 req->type = EIO_WD_CLOSE;
1857 req->wd = wd;
1858 REQ_SEND;
1859 }
1860#else
1861 eio_wd_close_sync (wd);
1862#endif
1863}
1954 1864
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1865MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1866
1957void 1867void
1958cancel (aio_req_ornot req) 1868cancel (aio_req_ornot req)
1959 CODE: 1869 CODE:
1960 req_cancel (req); 1870 eio_cancel (req);
1961 1871
1962void 1872void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1873cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1874 PPCODE:
1875{
1876 if (GIMME_V != G_VOID)
1877 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1878
1879 if (items > 1)
1880 {
1881 SV *cb_cv =get_cb (callback);
1882
1965 SvREFCNT_dec (req->callback); 1883 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1884 req->callback = SvREFCNT_inc (cb_cv);
1885 }
1886}
1967 1887
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1888MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1889
1970void 1890void
1971add (aio_req grp, ...) 1891add (aio_req grp, ...)
1972 PPCODE: 1892 PPCODE:
1973{ 1893{
1974 int i; 1894 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 1895
1980 if (grp->int1 == 2) 1896 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1897 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1898
1983 for (i = 1; i < items; ++i ) 1899 for (i = 1; i < items; ++i )
1984 { 1900 {
1901 aio_req req;
1902
1985 if (GIMME_V != G_VOID) 1903 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1904 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1905
1988 req = SvAIO_REQ (ST (i)); 1906 req = SvAIO_REQ (ST (i));
1989 1907
1990 if (req) 1908 if (req)
1991 { 1909 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 1910 }
2004} 1911}
2005 1912
2006void 1913void
2007cancel_subs (aio_req_ornot req) 1914cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1923 AV *av;
2017 1924
2018 grp->errorno = errno; 1925 grp->errorno = errno;
2019 1926
2020 av = newAV (); 1927 av = newAV ();
1928 av_extend (av, items - 1);
2021 1929
2022 for (i = 1; i < items; ++i ) 1930 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1931 av_push (av, newSVsv (ST (i)));
2024 1932
2025 SvREFCNT_dec (grp->sv1); 1933 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 1940 grp->errorno = errorno;
2033 1941
2034void 1942void
2035limit (aio_req grp, int limit) 1943limit (aio_req grp, int limit)
2036 CODE: 1944 CODE:
2037 grp->int2 = limit; 1945 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 1946
2040void 1947void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 1948feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 1949 CODE:
2043{ 1950{
2044 SvREFCNT_dec (grp->sv2); 1951 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 1952 grp->sv2 = newSVsv (callback);
1953 grp->feed = aio_grp_feed;
2046 1954
2047 if (grp->int2 <= 0) 1955 if (grp->int2 <= 0)
2048 grp->int2 = 2; 1956 grp->int2 = 2;
2049 1957
2050 aio_grp_feed (grp); 1958 eio_grp_limit (grp, grp->int2);
2051} 1959}
2052 1960

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