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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC vs.
Revision 1.215 by root, Sun Jun 17 17:07:25 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 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
98#else 215#else
99# define SvVAL64 SvNV 216 errno = ENOSYS;
100#endif 217#endif
218}
101 219
102#define dBUF \ 220/*****************************************************************************/
103 char *aio_buf; \
104 X_LOCK (wrklock); \
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
106 X_UNLOCK (wrklock); \
107 if (!aio_buf) \
108 return -1;
109
110typedef SV SV8; /* byte-sv, used for argument-checking */
111 221
112enum { 222enum {
113 REQ_QUIT, 223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 224};
129 225
130#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132
133typedef struct aio_cb
134{
135 struct aio_cb *volatile next;
136
137 SV *callback;
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150
151 unsigned char flags;
152 unsigned char pri;
153
154 SV *self; /* the perl counterpart of this request, if any */
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
156} aio_cb;
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req; 226typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
166 229
167enum { 230static SV *on_next_submit;
168 PRI_MIN = -4, 231static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 232static int max_outstanding;
170 233
171 DEFAULT_PRI = 0, 234static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 235
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe_osf [2], respipe [2] = { -1, -1 };
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 236static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 237static void req_cancel (aio_req req);
376 238
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
377/* must be called at most once */ 253/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 254static SV *
255req_sv (aio_req req, HV *stash)
379{ 256{
380 if (!req->self) 257 if (!req->self)
381 { 258 {
382 req->self = (SV *)newHV (); 259 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 261 }
385 262
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 264}
388 265
389static 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)
390{ 274{
391 MAGIC *mg; 275 MAGIC *mg;
392 276
393 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")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 282 croak ("object of class IO::AIO::REQ expected");
395 283
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 285
398 return mg ? (aio_req)mg->mg_ptr : 0; 286 return mg ? (aio_req)mg->mg_ptr : 0;
399} 287}
400 288
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
401static void aio_grp_feed (aio_req grp) 301aio_grp_feed (aio_req grp)
402{ 302{
403 block_sig (); 303 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 304 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 305 dSP;
412 306
413 ENTER; 307 ENTER;
414 SAVETMPS; 308 SAVETMPS;
415 PUSHMARK (SP); 309 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 311 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 313 SPAGAIN;
420 FREETMPS; 314 FREETMPS;
421 LEAVE; 315 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 316 }
432
433 unblock_sig ();
434} 317}
435 318
436static void aio_grp_dec (aio_req grp) 319static void
320req_submit (eio_req *req)
437{ 321{
438 --grp->size; 322 eio_submit (req);
439 323
440 /* call feeder, if applicable */ 324 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 325 {
446 block_sig (); 326 dSP;
327 SV *cb = sv_2mortal (on_next_submit);
447 328
448 if (!req_invoke (grp)) 329 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 330
455 req_destroy (grp); 331 PUSHMARK (SP);
456 unblock_sig (); 332 PUTBACK;
333 call_sv (cb, G_DISCARD | G_EVAL);
457 } 334 }
458} 335}
459 336
337static int
460static int req_invoke (aio_req req) 338req_invoke (eio_req *req)
461{ 339{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
466 342
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
468 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
469 ENTER; 349 ENTER;
470 SAVETMPS; 350 SAVETMPS;
471 PUSHMARK (SP); 351 PUSHMARK (SP);
472 EXTEND (SP, 1); 352 EXTEND (SP, 1);
473 353
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
474 switch (req->type) 367 switch (req->type)
475 { 368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
476 case REQ_READDIR: 373 case EIO_READDIR:
477 { 374 {
478 SV *rv = &PL_sv_undef; 375 SV *rv = &PL_sv_undef;
479 376
480 if (req->result >= 0) 377 if (req->result >= 0)
481 { 378 {
482 int i; 379 int i;
483 char *buf = req->ptr2; 380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 382 AV *av = newAV ();
485 383
486 av_extend (av, req->result - 1); 384 av_extend (av, req->result - 1);
487 385
488 for (i = 0; i < req->result; ++i) 386 for (i = 0; i < req->result; ++i)
489 { 387 {
490 SV *sv = newSVpv (buf, 0); 388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 391
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
492 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);
493 buf += SvCUR (sv) + 1; 420 names += SvCUR (name) + 1;
421 }
494 } 422 }
495 423
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 424 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 425 }
498 426
499 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))));
500 } 431 }
501 break; 432 break;
502 433
503 case REQ_OPEN: 434 case EIO_OPEN:
504 { 435 {
505 /* convert fd to fh */ 436 /* convert fd to fh */
506 SV *fh; 437 SV *fh = &PL_sv_undef;
507 438
508 PUSHs (sv_2mortal (newSViv (req->result))); 439 if (req->result >= 0)
509 PUTBACK; 440 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 441 GV *gv = (GV *)sv_newmortal ();
511 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);
512 448
513 fh = POPs; 449 symlen = snprintf (
514 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
515 XPUSHs (fh); 461 PUSHs (fh);
516 } 462 }
517 break; 463 break;
518 464
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
519 case REQ_GROUP: 497 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 498 req->int1 = 2; /* mark group as finished */
521 499
522 if (req->sv1) 500 if (req->sv1)
523 { 501 {
524 int i; 502 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 506 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 507 PUSHs (*av_fetch (av, i, 0));
530 } 508 }
531 break; 509 break;
532 510
533 case REQ_NOP: 511 case EIO_NOP:
534 case REQ_BUSY: 512 case EIO_BUSY:
535 break; 513 break;
536 514
537 case REQ_READLINK: 515 case EIO_READLINK:
516 case EIO_REALPATH:
538 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)
539 { 549 {
540 SvCUR_set (req->sv2, req->result); 550#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 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
543 } 582 }
583 else
584 PUSHs (sv_result);
544 break; 585 break;
545 586
546 case REQ_STAT: 587 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 588 if (req->result > 0)
548 case REQ_FSTAT: 589 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 590 /* FALLTHROUGH */
550 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result)));
553 break;
554
555 case REQ_READ:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result)));
559 break;
560 591
561 default: 592 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 593 PUSHs (sv_result);
563 break; 594 break;
564 } 595 }
565 596
566 errno = req->errorno; 597 errno = req->errorno;
567 598
568 PUTBACK; 599 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 600 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 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;
571 607
572 FREETMPS; 608 FREETMPS;
573 LEAVE; 609 LEAVE;
610
611 PUTBACK;
574 } 612 }
575 613
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 614 return !!SvTRUE (ERRSV);
591} 615}
592 616
617static void
593static void req_destroy (aio_req req) 618req_destroy (aio_req req)
594{ 619{
595 if (req->self) 620 if (req->self)
596 { 621 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 622 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 623 SvREFCNT_dec (req->self);
599 } 624 }
600 625
601 SvREFCNT_dec (req->sv1); 626 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 627 SvREFCNT_dec (req->sv2);
628 SvREFCNT_dec (req->sv3);
629 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 630 SvREFCNT_dec (req->callback);
604 631
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 632 free (req);
609} 633}
610 634
635static void
611static void req_cancel_subs (aio_req grp) 636req_cancel_subs (aio_req grp)
612{ 637{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 638 if (grp->type != EIO_GROUP)
616 return; 639 return;
617 640
618 SvREFCNT_dec (grp->sv2); 641 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 642 grp->sv2 = 0;
620 643
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 644 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 645}
624 646
625static void req_cancel (aio_req req) 647static void ecb_cold
648create_respipe (void)
626{ 649{
627 req->flags |= FLAG_CANCELLED; 650 if (s_epipe_renew (&respipe))
628 651 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 652}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637 653
638static void 654static void
639create_respipe () 655poll_wait (void)
640{ 656{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe))
650#endif
651 croak ("unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674}
675
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait ()
772{
773 fd_set rfd;
774
775 while (nreqs) 657 while (eio_nreqs ())
776 { 658 {
777 int size; 659 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 660
661 X_LOCK (reslock);
779 size = res_queue.size; 662 size = res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 663 X_UNLOCK (reslock);
781 664
782 if (size) 665 if (size)
783 return; 666 return;
784 667
785 maybe_start_thread (); 668 etp_maybe_start_thread ();
786 669
787 FD_ZERO (&rfd); 670 s_epipe_wait (&respipe);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
791 } 671 }
792} 672}
793 673
794static int poll_cb () 674static int
675poll_cb (void)
795{ 676{
796 dSP;
797 int count = 0;
798 int maxreqs = max_poll_reqs;
799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
807
808 for (;;) 677 for (;;)
809 { 678 {
810 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)
811 { 792 {
812 maybe_start_thread (); 793 path = AvARRAY (rv)[1];
794 wdob = AvARRAY (rv)[0];
813 795
814 X_LOCK (reslock); 796 if (SvOK (wdob))
815 req = reqq_shift (&res_queue);
816
817 if (req)
818 { 797 {
819 --npending; 798 *wd = SvAIO_WD (wdob);
820 799 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
821 if (!res_queue.size)
822 {
823 /* read any signals sent by the worker threads */
824 char buf [4];
825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 } 800 }
842 else 801 else
843 { 802 *wd = EIO_INVALID_WD;
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0);
849 }
850
851 count++;
852 }
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
865 }
866 } 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 }
867 814
868 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)));
869 break; 838 break;
870 839
871 poll_wait (); 840 default:
872 841 req->type = type_path;
873 ++maxreqs; 842 req_set_path1 (req, fh_or_path);
843 break;
874 } 844 }
875
876 unblock_sig ();
877 return count;
878} 845}
879 846
880/*****************************************************************************/ 847XS(boot_IO__AIO) ecb_cold;
881/* work around various missing functions */
882 848
883#if !HAVE_PREADWRITE
884# define pread aio_pread
885# define pwrite aio_pwrite
886
887/*
888 * make our pread/pwrite safe against themselves, but not against
889 * normal read/write by using a mutex. slows down execution a lot,
890 * but that's your problem, not mine.
891 */
892static mutex_t preadwritelock = X_MUTEX_INIT;
893
894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
895{
896 ssize_t res;
897 off_t ooffset;
898
899 X_LOCK (preadwritelock);
900 ooffset = lseek (fd, 0, SEEK_CUR);
901 lseek (fd, offset, SEEK_SET);
902 res = read (fd, buf, count);
903 lseek (fd, ooffset, SEEK_SET);
904 X_UNLOCK (preadwritelock);
905
906 return res;
907}
908
909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
910{
911 ssize_t res;
912 off_t ooffset;
913
914 X_LOCK (preadwritelock);
915 ooffset = lseek (fd, 0, SEEK_CUR);
916 lseek (fd, offset, SEEK_SET);
917 res = write (fd, buf, count);
918 lseek (fd, offset, SEEK_SET);
919 X_UNLOCK (preadwritelock);
920
921 return res;
922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
951#endif
952
953#if !HAVE_FDATASYNC
954# define fdatasync fsync
955#endif
956
957#if !HAVE_READAHEAD
958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
959
960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
961{
962 size_t todo = count;
963 dBUF;
964
965 while (todo > 0)
966 {
967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
968
969 pread (fd, aio_buf, len, offset);
970 offset += len;
971 todo -= len;
972 }
973
974 errno = 0;
975 return count;
976}
977
978#endif
979
980#if !HAVE_READDIR_R
981# define readdir_r aio_readdir_r
982
983static mutex_t readdirlock = X_MUTEX_INIT;
984
985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
986{
987 X_DIRENT *e;
988 int errorno;
989
990 X_LOCK (readdirlock);
991
992 e = readdir (dirp);
993 errorno = errno;
994
995 if (e)
996 {
997 *res = ent;
998 strcpy (ent->d_name, e->d_name);
999 }
1000 else
1001 *res = 0;
1002
1003 X_UNLOCK (readdirlock);
1004
1005 errno = errorno;
1006 return e ? 0 : -1;
1007}
1008#endif
1009
1010/* sendfile always needs emulation */
1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1012{
1013 ssize_t res;
1014
1015 if (!count)
1016 return 0;
1017
1018#if HAVE_SENDFILE
1019# if __linux
1020 res = sendfile (ofd, ifd, &offset, count);
1021
1022# elif __freebsd
1023 /*
1024 * Of course, the freebsd sendfile is a dire hack with no thoughts
1025 * wasted on making it similar to other I/O functions.
1026 */
1027 {
1028 off_t sbytes;
1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1030
1031 if (res < 0 && sbytes)
1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1033 res = sbytes;
1034 }
1035
1036# elif __hpux
1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
1038
1039# elif __solaris
1040 {
1041 struct sendfilevec vec;
1042 size_t sbytes;
1043
1044 vec.sfv_fd = ifd;
1045 vec.sfv_flag = 0;
1046 vec.sfv_off = offset;
1047 vec.sfv_len = count;
1048
1049 res = sendfilev (ofd, &vec, 1, &sbytes);
1050
1051 if (res < 0 && sbytes)
1052 res = sbytes;
1053 }
1054
1055# endif
1056#else
1057 res = -1;
1058 errno = ENOSYS;
1059#endif
1060
1061 if (res < 0
1062 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1063#if __solaris
1064 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1065#endif
1066 )
1067 )
1068 {
1069 /* emulate sendfile. this is a major pain in the ass */
1070 dBUF;
1071
1072 res = 0;
1073
1074 while (count)
1075 {
1076 ssize_t cnt;
1077
1078 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1079
1080 if (cnt <= 0)
1081 {
1082 if (cnt && !res) res = -1;
1083 break;
1084 }
1085
1086 cnt = write (ofd, aio_buf, cnt);
1087
1088 if (cnt <= 0)
1089 {
1090 if (cnt && !res) res = -1;
1091 break;
1092 }
1093
1094 offset += cnt;
1095 res += cnt;
1096 count -= cnt;
1097 }
1098 }
1099
1100 return res;
1101}
1102
1103/* read a full directory */
1104static void scandir_ (aio_req req, worker *self)
1105{
1106 DIR *dirp;
1107 union
1108 {
1109 X_DIRENT d;
1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1111 } *u;
1112 X_DIRENT *entp;
1113 char *name, *names;
1114 int memlen = 4096;
1115 int memofs = 0;
1116 int res = 0;
1117
1118 X_LOCK (wrklock);
1119 self->dirp = dirp = opendir (req->ptr1);
1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
1124
1125 if (dirp && u && names)
1126 for (;;)
1127 {
1128 errno = 0;
1129 readdir_r (dirp, &u->d, &entp);
1130
1131 if (!entp)
1132 break;
1133
1134 name = entp->d_name;
1135
1136 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1137 {
1138 int len = strlen (name) + 1;
1139
1140 res++;
1141
1142 while (memofs + len > memlen)
1143 {
1144 memlen *= 2;
1145 X_LOCK (wrklock);
1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
1149 if (!names)
1150 break;
1151 }
1152
1153 memcpy (names + memofs, name, len);
1154 memofs += len;
1155 }
1156 }
1157
1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162}
1163
1164/*****************************************************************************/
1165
1166X_THREAD_PROC (aio_proc)
1167{
1168 {//D
1169 aio_req req;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
1177 {
1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1179
1180 X_LOCK (reqlock);
1181
1182 for (;;)
1183 {
1184 self->req = req = reqq_shift (&req_queue);
1185
1186 if (req)
1187 break;
1188
1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
1210 }
1211
1212 --nready;
1213
1214 X_UNLOCK (reqlock);
1215
1216 errno = 0; /* strictly unnecessary */
1217
1218 if (!(req->flags & FLAG_CANCELLED))
1219 switch (req->type)
1220 {
1221 case REQ_READ: req->result = req->offs >= 0
1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1227
1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1230
1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1243 case REQ_CLOSE: req->result = close (req->int1); break;
1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1252
1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1255 case REQ_READDIR: scandir_ (req, self); break;
1256
1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1261 {
1262 struct timeval tv;
1263
1264 tv.tv_sec = req->nv1;
1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1266
1267 req->result = select (0, 0, 0, 0, &tv);
1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
1295
1296 case REQ_GROUP:
1297 case REQ_NOP:
1298 break;
1299
1300 case REQ_QUIT:
1301 goto quit;
1302
1303 default:
1304 req->result = -1;
1305 break;
1306 }
1307
1308 req->errorno = errno;
1309
1310 X_LOCK (reslock);
1311
1312 ++npending;
1313
1314 if (!reqq_push (&res_queue, req))
1315 {
1316 /* write a dummy byte to the pipe so fh becomes ready */
1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1318
1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
1328 }
1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
1334
1335 return 0;
1336 }//D
1337}
1338
1339/*****************************************************************************/
1340
1341static void atfork_prepare (void)
1342{
1343 X_LOCK (wrklock);
1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
1346#if !HAVE_PREADWRITE
1347 X_LOCK (preadwritelock);
1348#endif
1349#if !HAVE_READDIR_R
1350 X_LOCK (readdirlock);
1351#endif
1352}
1353
1354static void atfork_parent (void)
1355{
1356#if !HAVE_READDIR_R
1357 X_UNLOCK (readdirlock);
1358#endif
1359#if !HAVE_PREADWRITE
1360 X_UNLOCK (preadwritelock);
1361#endif
1362 X_UNLOCK (reslock);
1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
1365}
1366
1367static void atfork_child (void)
1368{
1369 aio_req prv;
1370
1371 while (prv = reqq_shift (&req_queue))
1372 req_destroy (prv);
1373
1374 while (prv = reqq_shift (&res_queue))
1375 req_destroy (prv);
1376
1377 while (wrk_first.next != &wrk_first)
1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
1394 create_respipe ();
1395
1396 atfork_parent ();
1397}
1398
1399#define dREQ \
1400 aio_req req; \
1401 int req_pri = next_pri; \
1402 next_pri = DEFAULT_PRI + PRI_BIAS; \
1403 \
1404 if (SvOK (callback) && !SvROK (callback)) \
1405 croak ("callback must be undef or of reference type"); \
1406 \
1407 Newz (0, req, 1, aio_cb); \
1408 if (!req) \
1409 croak ("out of memory during aio_req allocation"); \
1410 \
1411 req->callback = newSVsv (callback); \
1412 req->pri = req_pri
1413
1414#define REQ_SEND \
1415 req_send (req); \
1416 \
1417 if (GIMME_V != G_VOID) \
1418 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1419
1420MODULE = IO::AIO PACKAGE = IO::AIO 849MODULE = IO::AIO PACKAGE = IO::AIO
1421 850
1422PROTOTYPES: ENABLE 851PROTOTYPES: ENABLE
1423 852
1424BOOT: 853BOOT:
1425{ 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
989 const_eio (READDIR_DENTS)
990 const_eio (READDIR_DIRS_FIRST)
991 const_eio (READDIR_STAT_ORDER)
992 const_eio (READDIR_FOUND_UNKNOWN)
993
994 const_eio (DT_UNKNOWN)
995 const_eio (DT_FIFO)
996 const_eio (DT_CHR)
997 const_eio (DT_DIR)
998 const_eio (DT_BLK)
999 const_eio (DT_REG)
1000 const_eio (DT_LNK)
1001 const_eio (DT_SOCK)
1002 const_eio (DT_WHT)
1003 };
1004
1426 HV *stash = gv_stashpv ("IO::AIO", 1); 1005 aio_stash = gv_stashpv ("IO::AIO" , 1);
1006 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1007 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1008 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1427 1009
1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1010 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1011 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440 1012
1441 X_COND_CHECK (reqwait); 1013 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446 1014
1447 create_respipe (); 1015 reinit ();
1448
1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1450} 1016}
1451 1017
1452void 1018void
1019reinit ()
1020 PROTOTYPE:
1021
1022void
1453max_poll_reqs (int nreqs) 1023max_poll_reqs (unsigned int nreqs)
1454 PROTOTYPE: $ 1024 PROTOTYPE: $
1455 CODE: 1025 CODE:
1456 max_poll_reqs = nreqs; 1026 eio_set_max_poll_reqs (nreqs);
1457 1027
1458void 1028void
1459max_poll_time (double nseconds) 1029max_poll_time (double nseconds)
1460 PROTOTYPE: $ 1030 PROTOTYPE: $
1461 CODE: 1031 CODE:
1462 max_poll_time = nseconds * AIO_TICKS; 1032 eio_set_max_poll_time (nseconds);
1463 1033
1464void 1034void
1465min_parallel (int nthreads) 1035min_parallel (unsigned int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $ 1036 PROTOTYPE: $
1475 CODE: 1037 CODE:
1476 set_max_idle (nthreads); 1038 eio_set_min_parallel (nthreads);
1477 1039
1478int 1040void
1479max_outstanding (int maxreqs) 1041max_parallel (unsigned int nthreads)
1480 PROTOTYPE: $ 1042 PROTOTYPE: $
1481 CODE: 1043 CODE:
1482 RETVAL = max_outstanding; 1044 eio_set_max_parallel (nthreads);
1045
1046void
1047max_idle (unsigned int nthreads)
1048 PROTOTYPE: $
1049 CODE:
1050 eio_set_max_idle (nthreads);
1051
1052void
1053idle_timeout (unsigned int seconds)
1054 PROTOTYPE: $
1055 CODE:
1056 eio_set_idle_timeout (seconds);
1057
1058void
1059max_outstanding (unsigned int maxreqs)
1060 PROTOTYPE: $
1061 CODE:
1483 max_outstanding = maxreqs; 1062 max_outstanding = maxreqs;
1484 OUTPUT: 1063
1485 RETVAL 1064void
1065aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1066 PPCODE:
1067{
1068 dREQ;
1069
1070 req->type = EIO_WD_OPEN;
1071 req_set_path1 (req, pathname);
1072
1073 REQ_SEND;
1074}
1486 1075
1487void 1076void
1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1077aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $$$;$
1490 PPCODE: 1078 PPCODE:
1491{ 1079{
1492 dREQ; 1080 dREQ;
1493 1081
1494 req->type = REQ_OPEN; 1082 req->type = EIO_OPEN;
1495 req->sv1 = newSVsv (pathname); 1083 req_set_path1 (req, pathname);
1496 req->ptr1 = SvPVbyte_nolen (req->sv1);
1497 req->int1 = flags; 1084 req->int1 = flags;
1498 req->mode = mode; 1085 req->int2 = mode;
1499 1086
1500 REQ_SEND; 1087 REQ_SEND;
1501} 1088}
1502 1089
1503void 1090void
1504aio_close (SV *fh, SV *callback=&PL_sv_undef) 1091aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $;$
1506 ALIAS: 1092 ALIAS:
1507 aio_close = REQ_CLOSE
1508 aio_fsync = REQ_FSYNC 1093 aio_fsync = EIO_FSYNC
1509 aio_fdatasync = REQ_FDATASYNC 1094 aio_fdatasync = EIO_FDATASYNC
1095 aio_syncfs = EIO_SYNCFS
1510 PPCODE: 1096 PPCODE:
1511{ 1097{
1098 int fd = s_fileno_croak (fh, 0);
1512 dREQ; 1099 dREQ;
1513 1100
1514 req->type = ix; 1101 req->type = ix;
1515 req->sv1 = newSVsv (fh); 1102 req->sv1 = newSVsv (fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1103 req->int1 = fd;
1517 1104
1518 REQ_SEND (req); 1105 REQ_SEND;
1106}
1107
1108void
1109aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1110 PPCODE:
1111{
1112 int fd = s_fileno_croak (fh, 0);
1113 dREQ;
1114
1115 req->type = EIO_SYNC_FILE_RANGE;
1116 req->sv1 = newSVsv (fh);
1117 req->int1 = fd;
1118 req->offs = offset;
1119 req->size = nbytes;
1120 req->int2 = flags;
1121
1122 REQ_SEND;
1123}
1124
1125void
1126aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1127 PPCODE:
1128{
1129 int fd = s_fileno_croak (fh, 0);
1130 dREQ;
1131
1132 req->type = EIO_FALLOCATE;
1133 req->sv1 = newSVsv (fh);
1134 req->int1 = fd;
1135 req->int2 = mode;
1136 req->offs = offset;
1137 req->size = len;
1138
1139 REQ_SEND;
1140}
1141
1142void
1143aio_close (SV *fh, SV *callback=&PL_sv_undef)
1144 PPCODE:
1145{
1146 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1147 int fd = s_fileno_croak (fh, 0);
1148 dREQ;
1149
1150 if (expect_false (close_fd < 0))
1151 {
1152 int pipefd [2];
1153
1154 if (
1155#ifdef _WIN32
1156 _pipe (pipefd, 1, _O_BINARY) < 0
1157#else
1158 pipe (pipefd) < 0
1159 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1160#endif
1161 || close (pipefd [1]) < 0
1162 )
1163 abort (); /*D*/
1164
1165 close_fd = pipefd [0];
1166 }
1167
1168 req->type = EIO_DUP2;
1169 req->int1 = close_fd;
1170 req->sv2 = newSVsv (fh);
1171 req->int2 = fd;
1172
1173 REQ_SEND;
1174}
1175
1176void
1177aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1178 PPCODE:
1179{
1180 int fd = s_fileno_croak (fh, 0);
1181 dREQ;
1182
1183 req->type = EIO_SEEK;
1184 req->sv1 = newSVsv (fh);
1185 req->int1 = fd;
1186 req->offs = SvVAL64 (offset);
1187 req->int2 = whence;
1188
1189 REQ_SEND;
1519} 1190}
1520 1191
1521void 1192void
1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1193aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1523 ALIAS: 1194 ALIAS:
1524 aio_read = REQ_READ 1195 aio_read = EIO_READ
1525 aio_write = REQ_WRITE 1196 aio_write = EIO_WRITE
1526 PROTOTYPE: $$$$$;$
1527 PPCODE: 1197 PPCODE:
1528{ 1198{
1529 STRLEN svlen; 1199 STRLEN svlen;
1200 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1530 char *svptr = SvPVbyte (data, svlen); 1201 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length); 1202 UV len = SvUV (length);
1532 1203
1533 SvUPGRADE (data, SVt_PV);
1534 SvPOK_on (data);
1535
1536 if (dataoffset < 0) 1204 if (dataoffset < 0)
1537 dataoffset += svlen; 1205 dataoffset += svlen;
1538 1206
1539 if (dataoffset < 0 || dataoffset > svlen) 1207 if (dataoffset < 0 || dataoffset > svlen)
1540 croak ("dataoffset outside of data scalar"); 1208 croak ("dataoffset outside of data scalar");
1541 1209
1542 if (ix == REQ_WRITE) 1210 if (ix == EIO_WRITE)
1543 { 1211 {
1544 /* write: check length and adjust. */ 1212 /* write: check length and adjust. */
1545 if (!SvOK (length) || len + dataoffset > svlen) 1213 if (!SvOK (length) || len + dataoffset > svlen)
1546 len = svlen - dataoffset; 1214 len = svlen - dataoffset;
1547 } 1215 }
1548 else 1216 else
1549 { 1217 {
1550 /* read: grow scalar as necessary */ 1218 /* read: check type and grow scalar as necessary */
1219 SvUPGRADE (data, SVt_PV);
1220 if (SvLEN (data) >= SvCUR (data))
1551 svptr = SvGROW (data, len + dataoffset + 1); 1221 svptr = SvGROW (data, len + dataoffset + 1);
1222 else if (SvCUR (data) < len + dataoffset)
1223 croak ("length + dataoffset outside of scalar, and cannot grow");
1552 } 1224 }
1553
1554 if (len < 0)
1555 croak ("length must not be negative");
1556 1225
1557 { 1226 {
1558 dREQ; 1227 dREQ;
1559 1228
1560 req->type = ix; 1229 req->type = ix;
1561 req->sv1 = newSVsv (fh); 1230 req->sv1 = newSVsv (fh);
1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1231 req->int1 = fd;
1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1232 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1565 req->size = len; 1233 req->size = len;
1566 req->sv2 = SvREFCNT_inc (data); 1234 req->sv2 = SvREFCNT_inc (data);
1567 req->ptr1 = (char *)svptr + dataoffset; 1235 req->ptr2 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset; 1236 req->stroffset = dataoffset;
1569 1237
1570 if (!SvREADONLY (data)) 1238 if (!SvREADONLY (data))
1571 { 1239 {
1572 SvREADONLY_on (data); 1240 SvREADONLY_on (data);
… …
1576 REQ_SEND; 1244 REQ_SEND;
1577 } 1245 }
1578} 1246}
1579 1247
1580void 1248void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1249aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1582 PROTOTYPE: $$;$ 1250 ALIAS:
1251 aio_readlink = EIO_READLINK
1252 aio_realpath = EIO_REALPATH
1583 PPCODE: 1253 PPCODE:
1584{ 1254{
1585 SV *data;
1586 dREQ; 1255 dREQ;
1587 1256
1588 data = newSV (NAME_MAX);
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK; 1257 req->type = ix;
1592 req->sv1 = newSVsv (path); 1258 req_set_path1 (req, pathname);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596 1259
1597 REQ_SEND; 1260 REQ_SEND;
1598} 1261}
1599 1262
1600void 1263void
1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1264aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1602 PROTOTYPE: $$$$;$
1603 PPCODE: 1265 PPCODE:
1604{ 1266{
1267 int ifd = s_fileno_croak (in_fh , 0);
1268 int ofd = s_fileno_croak (out_fh, 1);
1605 dREQ; 1269 dREQ;
1606 1270
1607 req->type = REQ_SENDFILE; 1271 req->type = EIO_SENDFILE;
1608 req->sv1 = newSVsv (out_fh); 1272 req->sv1 = newSVsv (out_fh);
1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1273 req->int1 = ofd;
1610 req->sv2 = newSVsv (in_fh); 1274 req->sv2 = newSVsv (in_fh);
1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1275 req->int2 = ifd;
1612 req->offs = SvVAL64 (in_offset); 1276 req->offs = in_offset;
1613 req->size = length; 1277 req->size = length;
1614 1278
1615 REQ_SEND; 1279 REQ_SEND;
1616} 1280}
1617 1281
1618void 1282void
1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1283aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1620 PROTOTYPE: $$$;$
1621 PPCODE: 1284 PPCODE:
1622{ 1285{
1286 int fd = s_fileno_croak (fh, 0);
1623 dREQ; 1287 dREQ;
1624 1288
1625 req->type = REQ_READAHEAD; 1289 req->type = EIO_READAHEAD;
1626 req->sv1 = newSVsv (fh); 1290 req->sv1 = newSVsv (fh);
1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1291 req->int1 = fd;
1628 req->offs = SvVAL64 (offset); 1292 req->offs = offset;
1629 req->size = length; 1293 req->size = length;
1630 1294
1631 REQ_SEND; 1295 REQ_SEND;
1632} 1296}
1633 1297
1634void 1298void
1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1299aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1636 ALIAS: 1300 ALIAS:
1637 aio_stat = REQ_STAT 1301 aio_stat = EIO_STAT
1638 aio_lstat = REQ_LSTAT 1302 aio_lstat = EIO_LSTAT
1303 aio_statvfs = EIO_STATVFS
1639 PPCODE: 1304 PPCODE:
1640{ 1305{
1641 dREQ; 1306 dREQ;
1642 1307
1643 req->ptr2 = malloc (sizeof (Stat_t)); 1308 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1644 if (!req->ptr2)
1645 {
1646 req_destroy (req);
1647 croak ("out of memory during aio_stat statdata allocation");
1648 }
1649
1650 req->flags |= FLAG_PTR2_FREE;
1651 req->sv1 = newSVsv (fh_or_path);
1652
1653 if (SvPOK (fh_or_path))
1654 {
1655 req->type = ix;
1656 req->ptr1 = SvPVbyte_nolen (req->sv1);
1657 }
1658 else
1659 {
1660 req->type = REQ_FSTAT;
1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1662 }
1663 1309
1664 REQ_SEND; 1310 REQ_SEND;
1665} 1311}
1312
1313UV
1314major (UV dev)
1315 ALIAS:
1316 minor = 1
1317 CODE:
1318 RETVAL = ix ? major (dev) : minor (dev);
1319 OUTPUT:
1320 RETVAL
1321
1322UV
1323makedev (UV maj, UV min)
1324 CODE:
1325 RETVAL = makedev (maj, min);
1326 OUTPUT:
1327 RETVAL
1666 1328
1667void 1329void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1330aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1669 PPCODE: 1331 PPCODE:
1670{ 1332{
1671 dREQ; 1333 dREQ;
1672 1334
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1335 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1336 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path); 1337 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1676
1677 if (SvPOK (fh_or_path))
1678 {
1679 req->type = REQ_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 }
1682 else
1683 {
1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687 1338
1688 REQ_SEND; 1339 REQ_SEND;
1689} 1340}
1690 1341
1691void 1342void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1343aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1693 PPCODE: 1344 PPCODE:
1694{ 1345{
1695 dREQ; 1346 dREQ;
1696 1347
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1348 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699 1349 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 }
1710 1350
1711 REQ_SEND; 1351 REQ_SEND;
1712} 1352}
1713 1353
1714void 1354void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1355aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1716 PPCODE: 1356 PPCODE:
1717{ 1357{
1718 dREQ; 1358 dREQ;
1719 1359
1720 req->mode = mode; 1360 req->int2 = mode;
1721 req->sv1 = newSVsv (fh_or_path); 1361 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1722
1723 if (SvPOK (fh_or_path))
1724 {
1725 req->type = REQ_CHMOD;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 }
1728 else
1729 {
1730 req->type = REQ_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 }
1733 1362
1734 REQ_SEND; 1363 REQ_SEND;
1735} 1364}
1736 1365
1737void 1366void
… …
1740{ 1369{
1741 dREQ; 1370 dREQ;
1742 1371
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1372 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1373 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path); 1374 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1746 1375
1747 if (SvPOK (fh_or_path)) 1376 REQ_SEND;
1748 { 1377}
1749 req->type = REQ_CHOWN; 1378
1750 req->ptr1 = SvPVbyte_nolen (req->sv1); 1379void
1751 } 1380aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1752 else 1381 PPCODE:
1753 { 1382{
1754 req->type = REQ_FCHOWN; 1383 dREQ;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1384
1756 } 1385 req->type = EIO_READDIR;
1386 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1387
1388 if (flags & EIO_READDIR_DENTS)
1389 req->int1 |= EIO_READDIR_CUSTOM2;
1390
1391 req_set_path1 (req, pathname);
1392
1393 REQ_SEND;
1394}
1395
1396void
1397aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1398 PPCODE:
1399{
1400 dREQ;
1401
1402 req->type = EIO_MKDIR;
1403 req->int2 = mode;
1404 req_set_path1 (req, pathname);
1757 1405
1758 REQ_SEND; 1406 REQ_SEND;
1759} 1407}
1760 1408
1761void 1409void
1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1410aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1763 ALIAS: 1411 ALIAS:
1764 aio_unlink = REQ_UNLINK 1412 aio_unlink = EIO_UNLINK
1765 aio_rmdir = REQ_RMDIR 1413 aio_rmdir = EIO_RMDIR
1766 aio_readdir = REQ_READDIR 1414 aio_readdir = EIO_READDIR
1767 PPCODE: 1415 PPCODE:
1768{ 1416{
1769 dREQ; 1417 dREQ;
1770 1418
1771 req->type = ix; 1419 req->type = ix;
1772 req->sv1 = newSVsv (pathname); 1420 req_set_path1 (req, pathname);
1773 req->ptr1 = SvPVbyte_nolen (req->sv1);
1774
1775 REQ_SEND;
1776}
1777
1778void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1783
1784 req->type = REQ_MKDIR;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode;
1788 1421
1789 REQ_SEND; 1422 REQ_SEND;
1790} 1423}
1791 1424
1792void 1425void
1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1426aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1794 ALIAS: 1427 ALIAS:
1795 aio_link = REQ_LINK 1428 aio_link = EIO_LINK
1796 aio_symlink = REQ_SYMLINK 1429 aio_symlink = EIO_SYMLINK
1797 aio_rename = REQ_RENAME 1430 aio_rename = EIO_RENAME
1798 PPCODE: 1431 PPCODE:
1799{ 1432{
1433 eio_wd wd2 = 0;
1800 dREQ; 1434 dREQ;
1801 1435
1802 req->type = ix; 1436 req->type = ix;
1803 req->sv2 = newSVsv (oldpath); 1437 req_set_path1 (req, oldpath);
1804 req->ptr2 = SvPVbyte_nolen (req->sv2); 1438 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1805 req->sv1 = newSVsv (newpath); 1439 req->int3 = (long)wd2;
1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1807 1440
1808 REQ_SEND; 1441 REQ_SEND;
1809} 1442}
1810 1443
1811void 1444void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1445aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1813 PPCODE: 1446 PPCODE:
1814{ 1447{
1815 dREQ; 1448 dREQ;
1816 1449
1817 req->type = REQ_MKNOD; 1450 req->type = EIO_MKNOD;
1818 req->sv1 = newSVsv (pathname);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1);
1820 req->mode = (mode_t)mode; 1451 req->int2 = (mode_t)mode;
1821 req->offs = dev; 1452 req->offs = dev;
1453 req_set_path1 (req, pathname);
1822 1454
1823 REQ_SEND; 1455 REQ_SEND;
1824} 1456}
1825 1457
1826void 1458void
1459aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1460 ALIAS:
1461 aio_mtouch = EIO_MTOUCH
1462 aio_msync = EIO_MSYNC
1463 PPCODE:
1464{
1465 STRLEN svlen;
1466 char *svptr = SvPVbyte (data, svlen);
1467 UV len = SvUV (length);
1468
1469 if (offset < 0)
1470 offset += svlen;
1471
1472 if (offset < 0 || offset > svlen)
1473 croak ("offset outside of scalar");
1474
1475 if (!SvOK (length) || len + offset > svlen)
1476 len = svlen - offset;
1477
1478 {
1479 dREQ;
1480
1481 req->type = ix;
1482 req->sv2 = SvREFCNT_inc (data);
1483 req->ptr2 = (char *)svptr + offset;
1484 req->size = len;
1485 req->int1 = flags;
1486
1487 REQ_SEND;
1488 }
1489}
1490
1491void
1492aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1493 PPCODE:
1494{
1495 STRLEN svlen;
1496 char *svptr = SvPVbyte (data, svlen);
1497 UV len = SvUV (length);
1498
1499 if (offset < 0)
1500 offset += svlen;
1501
1502 if (offset < 0 || offset > svlen)
1503 croak ("offset outside of scalar");
1504
1505 if (!SvOK (length) || len + offset > svlen)
1506 len = svlen - offset;
1507
1508 {
1509 dREQ;
1510
1511 req->type = EIO_MLOCK;
1512 req->sv2 = SvREFCNT_inc (data);
1513 req->ptr2 = (char *)svptr + offset;
1514 req->size = len;
1515
1516 REQ_SEND;
1517 }
1518}
1519
1520void
1521aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1522 PPCODE:
1523{
1524 dREQ;
1525
1526 req->type = EIO_MLOCKALL;
1527 req->int1 = flags;
1528
1529 REQ_SEND;
1530}
1531
1532void
1533aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1534 PPCODE:
1535{
1536 int fd = s_fileno_croak (fh, 0);
1537 dREQ;
1538
1539 req->type = EIO_CUSTOM;
1540 req->sv1 = newSVsv (fh);
1541 req->int1 = fd;
1542
1543 req->feed = fiemap;
1544#if HAVE_FIEMAP
1545 /* keep our fingers crossed that the next two types are 64 bit */
1546 req->offs = start;
1547 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1548 req->int2 = flags;
1549 req->int3 = SvOK (count) ? SvIV (count) : -1;
1550#endif
1551
1552 REQ_SEND;
1553}
1554
1555void
1827aio_busy (double delay, SV *callback=&PL_sv_undef) 1556aio_busy (double delay, SV *callback=&PL_sv_undef)
1828 PPCODE: 1557 PPCODE:
1829{ 1558{
1830 dREQ; 1559 dREQ;
1831 1560
1832 req->type = REQ_BUSY; 1561 req->type = EIO_BUSY;
1833 req->nv1 = delay < 0. ? 0. : delay; 1562 req->nv1 = delay < 0. ? 0. : delay;
1834 1563
1835 REQ_SEND; 1564 REQ_SEND;
1836} 1565}
1837 1566
1838void 1567void
1839aio_group (SV *callback=&PL_sv_undef) 1568aio_group (SV *callback=&PL_sv_undef)
1840 PROTOTYPE: ;$
1841 PPCODE: 1569 PPCODE:
1842{ 1570{
1843 dREQ; 1571 dREQ;
1844 1572
1845 req->type = REQ_GROUP; 1573 req->type = EIO_GROUP;
1846 1574
1847 req_send (req); 1575 req_submit (req);
1848 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1576 XPUSHs (req_sv (req, aio_grp_stash));
1849} 1577}
1850 1578
1851void 1579void
1852aio_nop (SV *callback=&PL_sv_undef) 1580aio_nop (SV *callback=&PL_sv_undef)
1581 ALIAS:
1582 aio_nop = EIO_NOP
1583 aio_sync = EIO_SYNC
1853 PPCODE: 1584 PPCODE:
1854{ 1585{
1855 dREQ; 1586 dREQ;
1856 1587
1857 req->type = REQ_NOP; 1588 req->type = ix;
1858 1589
1859 REQ_SEND; 1590 REQ_SEND;
1860} 1591}
1861 1592
1862int 1593int
1863aioreq_pri (int pri = 0) 1594aioreq_pri (int pri = 0)
1864 PROTOTYPE: ;$
1865 CODE: 1595 CODE:
1866 RETVAL = next_pri - PRI_BIAS; 1596 RETVAL = next_pri;
1867 if (items > 0) 1597 if (items > 0)
1868 { 1598 {
1869 if (pri < PRI_MIN) pri = PRI_MIN; 1599 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1870 if (pri > PRI_MAX) pri = PRI_MAX; 1600 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1871 next_pri = pri + PRI_BIAS; 1601 next_pri = pri;
1872 } 1602 }
1873 OUTPUT: 1603 OUTPUT:
1874 RETVAL 1604 RETVAL
1875 1605
1876void 1606void
1877aioreq_nice (int nice = 0) 1607aioreq_nice (int nice = 0)
1878 CODE: 1608 CODE:
1879 nice = next_pri - nice; 1609 nice = next_pri - nice;
1880 if (nice < PRI_MIN) nice = PRI_MIN; 1610 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1881 if (nice > PRI_MAX) nice = PRI_MAX; 1611 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1882 next_pri = nice + PRI_BIAS; 1612 next_pri = nice;
1883 1613
1884void 1614void
1885flush () 1615flush ()
1886 PROTOTYPE:
1887 CODE: 1616 CODE:
1888 while (nreqs) 1617 while (eio_nreqs ())
1889 { 1618 {
1890 poll_wait (); 1619 poll_wait ();
1891 poll_cb (); 1620 poll_cb ();
1892 } 1621 }
1893 1622
1894int 1623int
1895poll() 1624poll ()
1896 PROTOTYPE:
1897 CODE: 1625 CODE:
1898 poll_wait (); 1626 poll_wait ();
1899 RETVAL = poll_cb (); 1627 RETVAL = poll_cb ();
1900 OUTPUT: 1628 OUTPUT:
1901 RETVAL 1629 RETVAL
1902 1630
1903int 1631int
1904poll_fileno() 1632poll_fileno ()
1905 PROTOTYPE:
1906 CODE: 1633 CODE:
1907 RETVAL = respipe [0]; 1634 RETVAL = s_epipe_fd (&respipe);
1908 OUTPUT: 1635 OUTPUT:
1909 RETVAL 1636 RETVAL
1910 1637
1911int 1638int
1912poll_cb(...) 1639poll_cb (...)
1913 PROTOTYPE: 1640 PROTOTYPE:
1914 CODE: 1641 CODE:
1915 RETVAL = poll_cb (); 1642 RETVAL = poll_cb ();
1916 OUTPUT: 1643 OUTPUT:
1917 RETVAL 1644 RETVAL
1918 1645
1919void 1646void
1920poll_wait() 1647poll_wait ()
1921 PROTOTYPE:
1922 CODE: 1648 CODE:
1923 poll_wait (); 1649 poll_wait ();
1924 1650
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1961
1962int 1651int
1963nreqs() 1652nreqs ()
1964 PROTOTYPE:
1965 CODE: 1653 CODE:
1966 RETVAL = nreqs; 1654 RETVAL = eio_nreqs ();
1967 OUTPUT: 1655 OUTPUT:
1968 RETVAL 1656 RETVAL
1969 1657
1970int 1658int
1971nready() 1659nready ()
1972 PROTOTYPE:
1973 CODE: 1660 CODE:
1974 RETVAL = get_nready (); 1661 RETVAL = eio_nready ();
1975 OUTPUT: 1662 OUTPUT:
1976 RETVAL 1663 RETVAL
1977 1664
1978int 1665int
1979npending() 1666npending ()
1980 PROTOTYPE:
1981 CODE: 1667 CODE:
1982 RETVAL = get_npending (); 1668 RETVAL = eio_npending ();
1983 OUTPUT: 1669 OUTPUT:
1984 RETVAL 1670 RETVAL
1985 1671
1986int 1672int
1987nthreads() 1673nthreads ()
1988 PROTOTYPE:
1989 CODE: 1674 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1675 RETVAL = eio_nthreads ();
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT: 1676 OUTPUT:
1994 RETVAL 1677 RETVAL
1995 1678
1679int
1680fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1681 CODE:
1682 RETVAL = posix_fadvise (fh, offset, length, advice);
1683 OUTPUT:
1684 RETVAL
1685
1686IV
1687sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1688 CODE:
1689 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1690 OUTPUT:
1691 RETVAL
1692
1693void
1694mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1695 PPCODE:
1696 sv_unmagic (scalar, MMAP_MAGIC);
1697{
1698 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1699 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1700 if (addr == (void *)-1)
1701 XSRETURN_NO;
1702
1703 sv_force_normal (scalar);
1704
1705 /* we store the length in mg_obj, as namlen is I32 :/ */
1706 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1707 ->mg_obj = (SV *)length;
1708
1709 SvUPGRADE (scalar, SVt_PV); /* nop... */
1710
1711 if (!(prot & PROT_WRITE))
1712 SvREADONLY_on (scalar);
1713
1714 if (SvLEN (scalar))
1715 Safefree (SvPVX (scalar));
1716
1717 SvPVX (scalar) = (char *)addr;
1718 SvCUR_set (scalar, length);
1719 SvLEN_set (scalar, 0);
1720 SvPOK_only (scalar);
1721
1722 XSRETURN_YES;
1723}
1724
1725void
1726munmap (SV *scalar)
1727 CODE:
1728 sv_unmagic (scalar, MMAP_MAGIC);
1729
1730int
1731madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1732 ALIAS:
1733 mprotect = 1
1734 CODE:
1735{
1736 STRLEN svlen;
1737 void *addr = SvPVbyte (scalar, svlen);
1738 size_t len = SvUV (length);
1739
1740 if (offset < 0)
1741 offset += svlen;
1742
1743 if (offset < 0 || offset > svlen)
1744 croak ("offset outside of scalar");
1745
1746 if (!SvOK (length) || len + offset > svlen)
1747 len = svlen - offset;
1748
1749 addr = (void *)(((intptr_t)addr) + offset);
1750 eio_page_align (&addr, &len);
1751
1752 switch (ix)
1753 {
1754 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1755 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1756 }
1757}
1758 OUTPUT:
1759 RETVAL
1760
1761int
1762munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1763 CODE:
1764{
1765 STRLEN svlen;
1766 void *addr = SvPVbyte (scalar, svlen);
1767 size_t len = SvUV (length);
1768
1769 if (offset < 0)
1770 offset += svlen;
1771
1772 if (offset < 0 || offset > svlen)
1773 croak ("offset outside of scalar");
1774
1775 if (!SvOK (length) || len + offset > svlen)
1776 len = svlen - offset;
1777
1778 addr = (void *)(((intptr_t)addr) + offset);
1779 eio_page_align (&addr, &len);
1780#if _POSIX_MEMLOCK_RANGE
1781 RETVAL = munlock (addr, len);
1782#else
1783 RETVAL = EIO_ENOSYS ();
1784#endif
1785}
1786 OUTPUT:
1787 RETVAL
1788
1789int
1790munlockall ()
1791 CODE:
1792#if _POSIX_MEMLOCK
1793 munlockall ();
1794#else
1795 RETVAL = EIO_ENOSYS ();
1796#endif
1797 OUTPUT:
1798 RETVAL
1799
1800int
1801splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1802 CODE:
1803{
1804#if HAVE_LINUX_SPLICE
1805 loff_t off_in_, off_out_;
1806 RETVAL = splice (
1807 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1808 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1809 length, flags
1810 );
1811#else
1812 RETVAL = EIO_ENOSYS ();
1813#endif
1814}
1815 OUTPUT:
1816 RETVAL
1817
1818int
1819tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1820 CODE:
1821#if HAVE_LINUX_SPLICE
1822 RETVAL = tee (rfh, wfh, length, flags);
1823#else
1824 RETVAL = EIO_ENOSYS ();
1825#endif
1826 OUTPUT:
1827 RETVAL
1828
1829void _on_next_submit (SV *cb)
1830 CODE:
1831 SvREFCNT_dec (on_next_submit);
1832 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1833
1996PROTOTYPES: DISABLE 1834PROTOTYPES: DISABLE
1835
1836MODULE = IO::AIO PACKAGE = IO::AIO::WD
1837
1838BOOT:
1839{
1840 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1841 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1842}
1843
1844void
1845DESTROY (SV *self)
1846 CODE:
1847{
1848 aio_wd wd = SvAIO_WD (self);
1849#if HAVE_AT
1850 {
1851 SV *callback = &PL_sv_undef;
1852 dREQ; /* clobbers next_pri :/ */
1853 next_pri = req->pri; /* restore next_pri */
1854 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1855 req->type = EIO_WD_CLOSE;
1856 req->wd = wd;
1857 REQ_SEND;
1858 }
1859#else
1860 eio_wd_close_sync (wd);
1861#endif
1862}
1997 1863
1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1864MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1999 1865
2000void 1866void
2001cancel (aio_req_ornot req) 1867cancel (aio_req_ornot req)
2002 CODE: 1868 CODE:
2003 req_cancel (req); 1869 eio_cancel (req);
2004 1870
2005void 1871void
2006cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1872cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2007 CODE: 1873 PPCODE:
1874{
1875 if (GIMME_V != G_VOID)
1876 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1877
1878 if (items > 1)
1879 {
1880 SV *cb_cv =get_cb (callback);
1881
2008 SvREFCNT_dec (req->callback); 1882 SvREFCNT_dec (req->callback);
2009 req->callback = newSVsv (callback); 1883 req->callback = SvREFCNT_inc (cb_cv);
1884 }
1885}
2010 1886
2011MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1887MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2012 1888
2013void 1889void
2014add (aio_req grp, ...) 1890add (aio_req grp, ...)
2015 PPCODE: 1891 PPCODE:
2016{ 1892{
2017 int i; 1893 int i;
2018 aio_req req;
2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022 1894
2023 if (grp->int1 == 2) 1895 if (grp->int1 == 2)
2024 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1896 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2025 1897
2026 for (i = 1; i < items; ++i ) 1898 for (i = 1; i < items; ++i )
2027 { 1899 {
1900 aio_req req;
1901
2028 if (GIMME_V != G_VOID) 1902 if (GIMME_V != G_VOID)
2029 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1903 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2030 1904
2031 req = SvAIO_REQ (ST (i)); 1905 req = SvAIO_REQ (ST (i));
2032 1906
2033 if (req) 1907 if (req)
2034 { 1908 eio_grp_add (grp, req);
2035 ++grp->size;
2036 req->grp = grp;
2037
2038 req->grp_prev = 0;
2039 req->grp_next = grp->grp_first;
2040
2041 if (grp->grp_first)
2042 grp->grp_first->grp_prev = req;
2043
2044 grp->grp_first = req;
2045 }
2046 } 1909 }
2047} 1910}
2048 1911
2049void 1912void
2050cancel_subs (aio_req_ornot req) 1913cancel_subs (aio_req_ornot req)
… …
2059 AV *av; 1922 AV *av;
2060 1923
2061 grp->errorno = errno; 1924 grp->errorno = errno;
2062 1925
2063 av = newAV (); 1926 av = newAV ();
1927 av_extend (av, items - 1);
2064 1928
2065 for (i = 1; i < items; ++i ) 1929 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i))); 1930 av_push (av, newSVsv (ST (i)));
2067 1931
2068 SvREFCNT_dec (grp->sv1); 1932 SvREFCNT_dec (grp->sv1);
… …
2075 grp->errorno = errorno; 1939 grp->errorno = errorno;
2076 1940
2077void 1941void
2078limit (aio_req grp, int limit) 1942limit (aio_req grp, int limit)
2079 CODE: 1943 CODE:
2080 grp->int2 = limit; 1944 eio_grp_limit (grp, limit);
2081 aio_grp_feed (grp);
2082 1945
2083void 1946void
2084feed (aio_req grp, SV *callback=&PL_sv_undef) 1947feed (aio_req grp, SV *callback=&PL_sv_undef)
2085 CODE: 1948 CODE:
2086{ 1949{
2087 SvREFCNT_dec (grp->sv2); 1950 SvREFCNT_dec (grp->sv2);
2088 grp->sv2 = newSVsv (callback); 1951 grp->sv2 = newSVsv (callback);
1952 grp->feed = aio_grp_feed;
2089 1953
2090 if (grp->int2 <= 0) 1954 if (grp->int2 <= 0)
2091 grp->int2 = 2; 1955 grp->int2 = 2;
2092 1956
2093 aio_grp_feed (grp); 1957 eio_grp_limit (grp, grp->int2);
2094} 1958}
2095 1959

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