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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.113 by root, Wed Apr 16 16:45:18 2008 UTC vs.
Revision 1.184 by root, Tue Jul 5 20:34:42 2011 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>
16#include <sys/statvfs.h>
14#include <limits.h> 17#include <limits.h>
15#include <fcntl.h> 18#include <fcntl.h>
16#include <sched.h> 19#include <sched.h>
17 20
21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
24
25/* perl namespace pollution */
26#undef VERSION
27
18#ifdef _WIN32 28#ifdef _WIN32
19 29
20# define SIGIO 0 30# define EIO_STRUCT_DIRENT Direntry_t
21 typedef Direntry_t X_DIRENT;
22#undef malloc 31# undef malloc
23#undef free 32# undef free
24 33
25// perl overrides all those nice win32 functions 34// perl overrides all those nice win32 functions
26# undef open 35# undef open
27# undef read 36# undef read
28# undef write 37# undef write
… …
54# define closedir(fd) (errno = ENOSYS, -1) 63# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a) 64# define mkdir(a,b) mkdir (a)
56 65
57#else 66#else
58 67
59# include "autoconf/config.h"
60# include <sys/time.h> 68# include <sys/time.h>
61# include <sys/select.h> 69# include <sys/select.h>
62# include <unistd.h> 70# include <unistd.h>
63# include <utime.h> 71# include <utime.h>
64# include <signal.h> 72# include <signal.h>
65 typedef struct dirent X_DIRENT; 73# define EIO_STRUCT_DIRENT struct dirent
66 74
67#endif
68
69#if HAVE_SENDFILE
70# if __linux
71# include <sys/sendfile.h>
72# elif __freebsd
73# include <sys/socket.h>
74# include <sys/uio.h>
75# elif __hpux
76# include <sys/socket.h>
77# elif __solaris /* not yet */
78# include <sys/sendfile.h>
79# else
80# error sendfile support requested but not available
81# endif 75#endif
82#endif
83 76
84/* number of seconds after which idle threads exit */ 77/* perl stupidly overrides readdir and maybe others */
85#define IDLE_TIMEOUT 10 78/* with thread-unsafe versions, imagine that :( */
79#undef readdir
80#undef opendir
81#undef closedir
86 82
87/* used for struct dirent, AIX doesn't provide it */ 83#define EIO_STRUCT_STAT Stat_t
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif
91
92/* buffer size for various temporary buffers */
93#define AIO_BUFSIZE 65536
94 84
95/* use NV for 32 bit perls as it allows larger offsets */ 85/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 86#if IVSIZE >= 8
87# define VAL64 IV
97# define SvVAL64 SvIV 88# define SvVAL64 SvIV
89# define newSVval64 newSViv
98#else 90#else
91# define VAL64 NV
99# define SvVAL64 SvNV 92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
100#endif 94#endif
101 95
102static HV *stash; 96/*****************************************************************************/
103 97
104#define dBUF \ 98#if __GNUC__ >= 3
105 char *aio_buf; \ 99# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_LOCK (wrklock); \ 100#else
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 101# define expect(expr,value) (expr)
108 X_UNLOCK (wrklock); \ 102#endif
109 if (!aio_buf) \ 103
110 return -1; 104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
111 108
112typedef SV SV8; /* byte-sv, used for argument-checking */ 109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126/* Linux/others */
127#ifndef O_ASYNC
128# define O_ASYNC 0
129#endif
130#ifndef O_DIRECT
131# define O_DIRECT 0
132#endif
133#ifndef O_NOATIME
134# define O_NOATIME 0
135#endif
136
137/* POSIX */
138#ifndef O_CLOEXEC
139# define O_CLOEXEC 0
140#endif
141#ifndef O_NOFOLLOW
142# define O_NOFOLLOW 0
143#endif
144#ifndef O_NOCTTY
145# define O_NOCTTY 0
146#endif
147#ifndef O_NONBLOCK
148# define O_NONBLOCK 0
149#endif
150#ifndef O_EXEC
151# define O_EXEC 0
152#endif
153#ifndef O_SEARCH
154# define O_SEARCH 0
155#endif
156#ifndef O_DIRECTORY
157# define O_DIRECTORY 0
158#endif
159#ifndef O_DSYNC
160# define O_DSYNC 0
161#endif
162#ifndef O_RSYNC
163# define O_RSYNC 0
164#endif
165#ifndef O_SYNC
166# define O_SYNC 0
167#endif
168#ifndef O_TTY_INIT
169# define O_TTY_INIT 0
170#endif
171
172#ifndef POSIX_FADV_NORMAL
173# define POSIX_FADV_NORMAL 0
174#endif
175#ifndef POSIX_FADV_SEQUENTIAL
176# define POSIX_FADV_SEQUENTIAL 0
177#endif
178#ifndef POSIX_FADV_RANDOM
179# define POSIX_FADV_RANDOM 0
180#endif
181#ifndef POSIX_FADV_NOREUSE
182# define POSIX_FADV_NOREUSE 0
183#endif
184#ifndef POSIX_FADV_WILLNEED
185# define POSIX_FADV_WILLNEED 0
186#endif
187#ifndef POSIX_FADV_DONTNEED
188# define POSIX_FADV_DONTNEED 0
189#endif
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#ifndef POSIX_MADV_NORMAL
196# define POSIX_MADV_NORMAL 0
197#endif
198#ifndef POSIX_MADV_SEQUENTIAL
199# define POSIX_MADV_SEQUENTIAL 0
200#endif
201#ifndef POSIX_MADV_RANDOM
202# define POSIX_MADV_RANDOM 0
203#endif
204#ifndef POSIX_MADV_WILLNEED
205# define POSIX_MADV_WILLNEED 0
206#endif
207#ifndef POSIX_MADV_DONTNEED
208# define POSIX_MADV_DONTNEED 0
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef PROT_NONE
216# define PROT_NONE 0
217#endif
218#ifndef PROT_READ
219# define PROT_READ 0
220#endif
221#ifndef PROT_WRITE
222# define PROT_READ 0
223#endif
224#ifndef PROT_EXEC
225# define PROT_EXEC 0
226#endif
227
228#ifndef ST_NODEV
229# define ST_NODEV 0
230#endif
231#ifndef ST_NOEXEC
232# define ST_NOEXEC 0
233#endif
234#ifndef ST_SYNCHRONOUS
235# define ST_SYNCHRONOUS 0
236#endif
237#ifndef ST_MANDLOCK
238# define ST_MANDLOCK 0
239#endif
240#ifndef ST_WRITE
241# define ST_WRITE 0
242#endif
243#ifndef ST_APPEND
244# define ST_APPEND 0
245#endif
246#ifndef ST_IMMUTABLE
247# define ST_IMMUTABLE 0
248#endif
249#ifndef ST_NOATIME
250# define ST_NOATIME 0
251#endif
252#ifndef ST_NODIRATIME
253# define ST_NODIRATIME 0
254#endif
255#ifndef ST_RELATIME
256# define ST_RELATIME 0
257#endif
258
259#ifndef S_IFIFO
260# define S_IFIFO 0
261#endif
262#ifndef S_IFCHR
263# define S_IFCHR 0
264#endif
265#ifndef S_IFBLK
266# define S_IFBLK 0
267#endif
268#ifndef S_IFLNK
269# define S_IFLNK 0
270#endif
271#ifndef S_IFREG
272# define S_IFREG 0
273#endif
274#ifndef S_IFDIR
275# define S_IFDIR 0
276#endif
277#ifndef S_IFWHT
278# define S_IFWHT 0
279#endif
280#ifndef S_IFSOCK
281# define S_IFSOCK 0
282#endif
283
284#ifndef MAP_ANONYMOUS
285# ifdef MAP_ANON
286# define MAP_ANONYMOUS MAP_ANON
287# else
288# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289# endif
290#endif
291#ifndef MAP_HUGETLB
292# define MAP_HUGETLB 0
293#endif
294#ifndef MAP_LOCKED
295# define MAP_LOCKED 0
296#endif
297#ifndef MAP_NORESERVE
298# define MAP_NORESERVE 0
299#endif
300#ifndef MAP_POPULATE
301# define MAP_POPULATE 0
302#endif
303#ifndef MAP_NONBLOCK
304# define MAP_NONBLOCK 0
305#endif
306
307#ifndef makedev
308# define makedev(maj,min) (((maj) << 8) | (min))
309#endif
310#ifndef major
311# define major(dev) ((dev) >> 8)
312#endif
313#ifndef minor
314# define minor(dev) ((dev) & 0xff)
315#endif
316
317#ifndef PAGESIZE
318# define PAGESIZE sysconf (_SC_PAGESIZE)
319#endif
320
321static int req_invoke (eio_req *req);
322#define EIO_FINISH(req) req_invoke (req)
323static void req_destroy (eio_req *grp);
324#define EIO_DESTROY(req) req_destroy (req)
113 325
114enum { 326enum {
115 REQ_QUIT, 327 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 328};
131 329
132#define AIO_REQ_KLASS "IO::AIO::REQ" 330#include "libeio/eio.c"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134 331
135typedef struct aio_cb
136{
137 struct aio_cb *volatile next;
138
139 SV *callback;
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146
147 STRLEN stroffset;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152
153 unsigned char flags;
154 unsigned char pri;
155
156 SV *self; /* the perl counterpart of this request, if any */
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
158} aio_cb;
159
160enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164};
165
166typedef aio_cb *aio_req; 332typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 333typedef eio_req *aio_req_ornot;
168 334
169enum { 335static SV *on_next_submit;
170 PRI_MIN = -4, 336static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 337static int max_outstanding;
172 338
173 DEFAULT_PRI = 0, 339static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 340
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig (void)
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return;
200
201 if (!main_sig)
202 return;
203
204 sigemptyset (&ss);
205 sigaddset (&ss, main_sig);
206 pthread_sigmask (SIG_BLOCK, &ss, 0);
207}
208
209void unblock_sig (void)
210{
211 sigset_t ss;
212
213 if (--block_sig_level)
214 return;
215
216 if (!main_sig)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 {
249 closedir (wrk->dirp);
250 wrk->dirp = 0;
251 }
252
253 if (wrk->dbuf)
254 {
255 free (wrk->dbuf);
256 wrk->dbuf = 0;
257 }
258}
259
260static void worker_free (worker *wrk)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready (void)
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending (void)
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads (void)
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0;
355
356 --q->size;
357
358 for (pri = NUM_PRI; pri--; )
359 {
360 aio_req req = q->qs[pri];
361
362 if (req)
363 {
364 if (!(q->qs[pri] = req->next))
365 q->qe[pri] = 0;
366
367 return req;
368 }
369 }
370
371 abort ();
372}
373
374static int poll_cb (void);
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 341static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 342static void req_cancel (aio_req req);
378 343
344static void want_poll (void)
345{
346 /* write a dummy byte to the pipe so fh becomes ready */
347 s_epipe_signal (&respipe);
348}
349
350static void done_poll (void)
351{
352 /* read any signals sent by the worker threads */
353 s_epipe_drain (&respipe);
354}
355
379/* must be called at most once */ 356/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 357static SV *req_sv (aio_req req, HV *stash)
381{ 358{
382 if (!req->self) 359 if (!req->self)
383 { 360 {
384 req->self = (SV *)newHV (); 361 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 362 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 363 }
387 364
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 365 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 366}
390 367
391static aio_req SvAIO_REQ (SV *sv) 368static aio_req SvAIO_REQ (SV *sv)
392{ 369{
393 MAGIC *mg; 370 MAGIC *mg;
394 371
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 372 if (!SvROK (sv)
373 || (SvSTASH (SvRV (sv)) != aio_grp_stash
374 && SvSTASH (SvRV (sv)) != aio_req_stash
375 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 376 croak ("object of class IO::AIO::REQ expected");
397 377
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 378 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 379
400 return mg ? (aio_req)mg->mg_ptr : 0; 380 return mg ? (aio_req)mg->mg_ptr : 0;
401} 381}
402 382
403static void aio_grp_feed (aio_req grp) 383static void aio_grp_feed (aio_req grp)
404{ 384{
405 block_sig (); 385 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 386 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 387 dSP;
414 388
415 ENTER; 389 ENTER;
416 SAVETMPS; 390 SAVETMPS;
417 PUSHMARK (SP); 391 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 392 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 393 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 394 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 395 SPAGAIN;
422 FREETMPS; 396 FREETMPS;
423 LEAVE; 397 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 398 }
434
435 unblock_sig ();
436} 399}
437 400
438static void aio_grp_dec (aio_req grp) 401static void req_submit (eio_req *req)
439{ 402{
440 --grp->size; 403 eio_submit (req);
441 404
442 /* call feeder, if applicable */ 405 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 406 {
448 block_sig (); 407 dSP;
408 SV *cb = sv_2mortal (on_next_submit);
449 409
450 if (!req_invoke (grp)) 410 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 411
457 req_destroy (grp); 412 PUSHMARK (SP);
458 unblock_sig (); 413 PUTBACK;
414 call_sv (cb, G_DISCARD | G_EVAL);
459 } 415 }
460} 416}
461 417
462static int req_invoke (aio_req req) 418static int req_invoke (eio_req *req)
463{ 419{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 421 SvREADONLY_off (req->sv2);
468 422
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 423 if (!EIO_CANCELLED (req) && req->callback)
470 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
471 ENTER; 429 ENTER;
472 SAVETMPS; 430 SAVETMPS;
473 PUSHMARK (SP); 431 PUSHMARK (SP);
474 EXTEND (SP, 1); 432 EXTEND (SP, 1);
475 433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
441 else
442 {
443 sv_result = newSViv (req->result);
444 SvREADONLY_on (sv_result);
445 }
446
476 switch (req->type) 447 switch (req->type)
477 { 448 {
478 case REQ_READDIR: 449 case EIO_READDIR:
479 { 450 {
480 SV *rv = &PL_sv_undef; 451 SV *rv = &PL_sv_undef;
481 452
482 if (req->result >= 0) 453 if (req->result >= 0)
483 { 454 {
484 int i; 455 int i;
485 char *buf = req->ptr2; 456 char *names = (char *)req->ptr2;
457 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 458 AV *av = newAV ();
487 459
488 av_extend (av, req->result - 1); 460 av_extend (av, req->result - 1);
489 461
490 for (i = 0; i < req->result; ++i) 462 for (i = 0; i < req->result; ++i)
491 { 463 {
492 SV *sv = newSVpv (buf, 0); 464 if (req->int1 & EIO_READDIR_DENTS)
465 {
466 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 467
468 if (req->int1 & EIO_READDIR_CUSTOM2)
469 {
470 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
471 AV *avent = newAV ();
472
473 av_extend (avent, 2);
474
475 if (!sv_type [ent->type])
476 {
477 sv_type [ent->type] = newSViv (ent->type);
478 SvREADONLY_on (sv_type [ent->type]);
479 }
480
481 av_store (avent, 0, namesv);
482 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
483 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
484
485 av_store (av, i, newRV_noinc ((SV *)avent));
486 }
487 else
494 av_store (av, i, sv); 488 av_store (av, i, namesv);
489
490 ++ent;
491 }
492 else
493 {
494 SV *name = newSVpv (names, 0);
495 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 496 names += SvCUR (name) + 1;
497 }
496 } 498 }
497 499
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 500 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 501 }
500 502
501 PUSHs (rv); 503 PUSHs (rv);
504
505 if (req->int1 & EIO_READDIR_CUSTOM1)
506 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 507 }
503 break; 508 break;
504 509
505 case REQ_OPEN: 510 case EIO_OPEN:
506 { 511 {
507 /* convert fd to fh */ 512 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 513 SV *fh = &PL_sv_undef;
509 514
510 if (req->result >= 0) 515 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 517 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 518 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 519 char sym [64];
515 int symlen; 520 int symlen;
516 521
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 522 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 523 gv_init (gv, aio_stash, sym, symlen, 0);
519 524
520 symlen = snprintf ( 525 symlen = snprintf (
521 sym, 526 sym,
522 sizeof (sym), 527 sizeof (sym),
523 "%s&=%d", 528 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 529 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 530 (int)req->result
526 ); 531 );
527 532
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 533 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 534 fh = (SV *)gv;
530 } 535 }
531 536
532 PUSHs (fh); 537 PUSHs (fh);
533 } 538 }
534 break; 539 break;
535 540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546 if (req->result >= 0)
547 {
548 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549 HV *hv = newHV ();
550
551 rv = sv_2mortal (newRV_noinc ((SV *)hv));
552
553 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
555 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
556 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
562 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564 }
565
566 PUSHs (rv);
567 }
568
569 break;
570
536 case REQ_GROUP: 571 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 572 req->int1 = 2; /* mark group as finished */
538 573
539 if (req->sv1) 574 if (req->sv1)
540 { 575 {
541 int i; 576 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 580 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 581 PUSHs (*av_fetch (av, i, 0));
547 } 582 }
548 break; 583 break;
549 584
550 case REQ_NOP: 585 case EIO_NOP:
551 case REQ_BUSY: 586 case EIO_BUSY:
552 break; 587 break;
553 588
554 case REQ_READLINK: 589 case EIO_READLINK:
590 case EIO_REALPATH:
555 if (req->result > 0) 591 if (req->result > 0)
556 { 592 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
557 SvCUR_set (req->sv2, req->result);
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2);
560 }
561 break; 593 break;
562 594
563 case REQ_STAT: 595 case EIO_STAT:
564 case REQ_LSTAT: 596 case EIO_LSTAT:
565 case REQ_FSTAT: 597 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 598 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567 PL_laststatval = req->result; 599 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2); 600 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 601 PUSHs (sv_result);
570 break; 602 break;
571 603
572 case REQ_READ: 604 case EIO_READ:
605 {
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 606 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0; 607 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 608 SvPOK_only (req->sv2);
609 SvSETMAGIC (req->sv2);
610 PUSHs (sv_result);
611 }
576 break; 612 break;
577 613
614 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615 if (req->result > 0)
616 SvIV_set (sv_result, 0);
617 /* FALLTHROUGH */
618
578 default: 619 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 620 PUSHs (sv_result);
580 break; 621 break;
581 } 622 }
582 623
583 errno = req->errorno; 624 errno = req->errorno;
584 625
585 PUTBACK; 626 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 627 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 628 SPAGAIN;
588 629
630 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
631 SvREFCNT_dec (sv_result);
632 else
633 sv_result_cache = sv_result;
634
589 FREETMPS; 635 FREETMPS;
590 LEAVE; 636 LEAVE;
591 637
592 PUTBACK; 638 PUTBACK;
593 } 639 }
594 640
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 641 return !!SvTRUE (ERRSV);
610} 642}
611 643
612static void req_destroy (aio_req req) 644static void req_destroy (aio_req req)
613{ 645{
614 if (req->self) 646 if (req->self)
… …
619 651
620 SvREFCNT_dec (req->sv1); 652 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 653 SvREFCNT_dec (req->sv2);
622 SvREFCNT_dec (req->callback); 654 SvREFCNT_dec (req->callback);
623 655
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 656 Safefree (req);
628} 657}
629 658
630static void req_cancel_subs (aio_req grp) 659static void req_cancel_subs (aio_req grp)
631{ 660{
632 aio_req sub; 661 aio_req sub;
633 662
634 if (grp->type != REQ_GROUP) 663 if (grp->type != EIO_GROUP)
635 return; 664 return;
636 665
637 SvREFCNT_dec (grp->sv2); 666 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 667 grp->sv2 = 0;
639 668
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 669 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 670}
643 671
644static void req_cancel (aio_req req)
645{
646 req->flags |= FLAG_CANCELLED;
647
648 req_cancel_subs (req);
649}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656
657static void
658create_respipe (void) 672static void create_respipe (void)
659{ 673{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe)) 674 if (s_epipe_renew (&respipe))
669#endif
670 croak ("unable to initialize result pipe"); 675 croak ("IO::AIO: unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788} 676}
789 677
790static void poll_wait (void) 678static void poll_wait (void)
791{ 679{
792 fd_set rfd;
793
794 while (nreqs) 680 while (eio_nreqs ())
795 { 681 {
796 int size; 682 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 683
684 X_LOCK (reslock);
798 size = res_queue.size; 685 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 686 X_UNLOCK (reslock);
800 687
801 if (size) 688 if (size)
802 return; 689 return;
803 690
804 maybe_start_thread (); 691 etp_maybe_start_thread ();
805 692
806 FD_ZERO (&rfd); 693 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 694 }
811} 695}
812 696
813static int poll_cb (void) 697static int poll_cb (void)
814{ 698{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 699 for (;;)
828 { 700 {
829 for (;;) 701 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 702
833 X_LOCK (reslock); 703 if (res > 0)
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 {
838 --npending;
839
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 }
861 else
862 {
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0); 704 croak (0);
868 }
869 705
870 count++; 706 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 707 return res;
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 }
886
887 if (nreqs <= max_outstanding)
888 break;
889 708
890 poll_wait (); 709 poll_wait ();
891
892 ++maxreqs;
893 } 710 }
711}
894 712
895 unblock_sig (); 713static void atfork_child (void)
896 return count; 714{
715 create_respipe ();
897} 716}
898 717
899/*****************************************************************************/ 718/*****************************************************************************/
900/* work around various missing functions */
901 719
902#if !HAVE_PREADWRITE 720#if !_POSIX_MAPPED_FILES
903# define pread aio_pread 721# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
904# define pwrite aio_pwrite 722# define munmap(addr,length) (errno = ENOSYS, -1)
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{
915 ssize_t res;
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926}
927
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
929{
930 ssize_t res;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif 723#endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079 724
1080 if (res < 0 725#if !_POSIX_MEMORY_PROTECTION
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 726# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1082#if __solaris 727# define PROT_NONE 0
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 728# define PROT_WRITE 0
729# define MAP_PRIVATE 0
730# define MAP_SHARED 0
731# define MAP_FIXED 0
1084#endif 732#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090 733
1091 res = 0; 734#define MMAP_MAGIC PERL_MAGIC_ext
1092 735
1093 while (count) 736static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1094 { 737{
1095 ssize_t cnt; 738 int old_errno = errno;
1096 739 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 740 errno = old_errno;
1098 741
1099 if (cnt <= 0) 742 mg->mg_obj = 0; /* just in case */
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104 743
1105 cnt = write (ofd, aio_buf, cnt); 744 SvREADONLY_off (sv);
1106 745
1107 if (cnt <= 0) 746 if (SvPVX (sv) != mg->mg_ptr)
1108 { 747 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112 748
1113 offset += cnt; 749 SvCUR_set (sv, 0);
1114 res += cnt; 750 SvPVX (sv) = 0;
1115 count -= cnt; 751 SvOK_off (sv);
1116 }
1117 }
1118 752
1119 return res; 753 return 0;
1120} 754}
1121 755
1122/* read a full directory */ 756static MGVTBL mmap_vtbl = {
1123static void scandir_ (aio_req req, worker *self) 757 0, 0, 0, 0, mmap_free
1124{ 758};
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183static int
1184aio_close (int fd)
1185{
1186 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1187
1188 X_LOCK (wrklock);
1189
1190 if (close_pipe < 0)
1191 {
1192 int pipefd [2];
1193
1194 if (pipe (pipefd) < 0
1195 || close (pipefd [1]) < 0
1196 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1197 {
1198 X_UNLOCK (wrklock);
1199 return -1;
1200 }
1201
1202 close_pipe = pipefd [0];
1203 }
1204
1205 X_UNLOCK (wrklock);
1206
1207 return dup2 (close_pipe, fd) < 0 ? -1 : 0;
1208}
1209 759
1210/*****************************************************************************/ 760/*****************************************************************************/
1211 761
1212X_THREAD_PROC (aio_proc) 762static SV * get_cb (SV *cb_sv)
1213{ 763{
1214 aio_req req; 764 SvGETMAGIC (cb_sv);
1215 struct timespec ts; 765 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1216 worker *self = (worker *)thr_arg;
1217
1218 /* try to distribute timeouts somewhat randomly */
1219 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1220
1221 for (;;)
1222 {
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224
1225 X_LOCK (reqlock);
1226
1227 for (;;)
1228 {
1229 self->req = req = reqq_shift (&req_queue);
1230
1231 if (req)
1232 break;
1233
1234 ++idle;
1235
1236 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1237 == ETIMEDOUT)
1238 {
1239 if (idle > max_idle)
1240 {
1241 --idle;
1242 X_UNLOCK (reqlock);
1243 X_LOCK (wrklock);
1244 --started;
1245 X_UNLOCK (wrklock);
1246 goto quit;
1247 }
1248
1249 /* we are allowed to idle, so do so without any timeout */
1250 X_COND_WAIT (reqwait, reqlock);
1251 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1252 }
1253
1254 --idle;
1255 }
1256
1257 --nready;
1258
1259 X_UNLOCK (reqlock);
1260
1261 errno = 0; /* strictly unnecessary */
1262
1263 if (!(req->flags & FLAG_CANCELLED))
1264 switch (req->type)
1265 {
1266 case REQ_READ: req->result = req->offs >= 0
1267 ? pread (req->int1, req->ptr1, req->size, req->offs)
1268 : read (req->int1, req->ptr1, req->size); break;
1269 case REQ_WRITE: req->result = req->offs >= 0
1270 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1271 : write (req->int1, req->ptr1, req->size); break;
1272
1273 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1274 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1275
1276 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1277 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1278 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1279
1280 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1281 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1282 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1283 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1284 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1285 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1286
1287 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1288 case REQ_CLOSE: req->result = aio_close (req->int1); break;
1289 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1290 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1291 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1292 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1293 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1294 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1295 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1296 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1297
1298 case REQ_SYNC: req->result = 0; sync (); break;
1299 case REQ_FSYNC: req->result = fsync (req->int1); break;
1300 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1301
1302 case REQ_READDIR: scandir_ (req, self); break;
1303
1304 case REQ_BUSY:
1305#ifdef _WIN32
1306 Sleep (req->nv1 * 1000.);
1307#else
1308 {
1309 struct timeval tv;
1310
1311 tv.tv_sec = req->nv1;
1312 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1313
1314 req->result = select (0, 0, 0, 0, &tv);
1315 }
1316#endif
1317 break;
1318
1319 case REQ_UTIME:
1320 case REQ_FUTIME:
1321 {
1322 struct timeval tv[2];
1323 struct timeval *times;
1324
1325 if (req->nv1 != -1. || req->nv2 != -1.)
1326 {
1327 tv[0].tv_sec = req->nv1;
1328 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1329 tv[1].tv_sec = req->nv2;
1330 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1331
1332 times = tv;
1333 }
1334 else
1335 times = 0;
1336
1337
1338 req->result = req->type == REQ_FUTIME
1339 ? futimes (req->int1, times)
1340 : utimes (req->ptr1, times);
1341 }
1342
1343 case REQ_GROUP:
1344 case REQ_NOP:
1345 break;
1346
1347 case REQ_QUIT:
1348 goto quit;
1349
1350 default:
1351 req->result = -1;
1352 break;
1353 }
1354
1355 req->errorno = errno;
1356
1357 X_LOCK (reslock);
1358
1359 ++npending;
1360
1361 if (!reqq_push (&res_queue, req))
1362 {
1363 /* write a dummy byte to the pipe so fh becomes ready */
1364 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1365
1366 /* optionally signal the main thread asynchronously */
1367 if (main_sig)
1368 pthread_kill (main_tid, main_sig);
1369 }
1370
1371 self->req = 0;
1372 worker_clear (self);
1373
1374 X_UNLOCK (reslock);
1375 }
1376
1377quit:
1378 X_LOCK (wrklock);
1379 worker_free (self);
1380 X_UNLOCK (wrklock);
1381
1382 return 0;
1383}
1384
1385/*****************************************************************************/
1386
1387static void atfork_prepare (void)
1388{
1389 X_LOCK (wrklock);
1390 X_LOCK (reqlock);
1391 X_LOCK (reslock);
1392#if !HAVE_PREADWRITE
1393 X_LOCK (preadwritelock);
1394#endif
1395#if !HAVE_READDIR_R
1396 X_LOCK (readdirlock);
1397#endif
1398}
1399
1400static void atfork_parent (void)
1401{
1402#if !HAVE_READDIR_R
1403 X_UNLOCK (readdirlock);
1404#endif
1405#if !HAVE_PREADWRITE
1406 X_UNLOCK (preadwritelock);
1407#endif
1408 X_UNLOCK (reslock);
1409 X_UNLOCK (reqlock);
1410 X_UNLOCK (wrklock);
1411}
1412
1413static void atfork_child (void)
1414{
1415 aio_req prv;
1416
1417 while (prv = reqq_shift (&req_queue))
1418 req_destroy (prv);
1419
1420 while (prv = reqq_shift (&res_queue))
1421 req_destroy (prv);
1422
1423 while (wrk_first.next != &wrk_first)
1424 {
1425 worker *wrk = wrk_first.next;
1426
1427 if (wrk->req)
1428 req_destroy (wrk->req);
1429
1430 worker_clear (wrk);
1431 worker_free (wrk);
1432 }
1433
1434 started = 0;
1435 idle = 0;
1436 nreqs = 0;
1437 nready = 0;
1438 npending = 0;
1439
1440 create_respipe ();
1441
1442 atfork_parent ();
1443} 766}
1444 767
1445#define dREQ \ 768#define dREQ \
769 SV *cb_cv; \
1446 aio_req req; \ 770 aio_req req; \
1447 int req_pri = next_pri; \ 771 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \ 772 next_pri = EIO_PRI_DEFAULT; \
1449 \ 773 \
1450 if (SvOK (callback) && !SvROK (callback)) \ 774 cb_cv = get_cb (callback); \
1451 croak ("callback must be undef or of reference type"); \
1452 \ 775 \
1453 Newz (0, req, 1, aio_cb); \ 776 Newz (0, req, 1, eio_req); \
1454 if (!req) \ 777 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \ 778 croak ("out of memory during eio_req allocation"); \
1456 \ 779 \
1457 req->callback = newSVsv (callback); \ 780 req->callback = SvREFCNT_inc (cb_cv); \
1458 req->pri = req_pri 781 req->pri = req_pri
1459 782
1460#define REQ_SEND \ 783#define REQ_SEND \
784 PUTBACK; \
1461 req_send (req); \ 785 req_submit (req); \
786 SPAGAIN; \
1462 \ 787 \
1463 if (GIMME_V != G_VOID) \ 788 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 789 XPUSHs (req_sv (req, aio_req_stash));
1465 790
1466MODULE = IO::AIO PACKAGE = IO::AIO 791MODULE = IO::AIO PACKAGE = IO::AIO
1467 792
1468PROTOTYPES: ENABLE 793PROTOTYPES: ENABLE
1469 794
1470BOOT: 795BOOT:
1471{ 796{
797 static const struct {
798 const char *name;
799 IV iv;
800 } *civ, const_iv[] = {
801# define const_niv(name, value) { # name, (IV) value },
802# define const_iv(name) { # name, (IV) name },
803# define const_eio(name) { # name, (IV) EIO_ ## name },
804 const_iv (EXDEV)
805 const_iv (ENOSYS)
806 const_iv (O_RDONLY)
807 const_iv (O_WRONLY)
808 const_iv (O_RDWR)
809 const_iv (O_CREAT)
810 const_iv (O_TRUNC)
811 const_iv (O_EXCL)
812 const_iv (O_APPEND)
813
814 const_iv (O_ASYNC)
815 const_iv (O_DIRECT)
816 const_iv (O_NOATIME)
817
818 const_iv (O_CLOEXEC)
819 const_iv (O_NOCTTY)
820 const_iv (O_NOFOLLOW)
821 const_iv (O_NONBLOCK)
822 const_iv (O_EXEC)
823 const_iv (O_SEARCH)
824 const_iv (O_DIRECTORY)
825 const_iv (O_DSYNC)
826 const_iv (O_RSYNC)
827 const_iv (O_SYNC)
828 const_iv (O_TTY_INIT)
829
830 const_iv (S_IFIFO)
831 const_iv (S_IFCHR)
832 const_iv (S_IFBLK)
833 const_iv (S_IFLNK)
834 const_iv (S_IFREG)
835 const_iv (S_IFDIR)
836 const_iv (S_IFWHT)
837 const_iv (S_IFSOCK)
838 const_iv (S_IFMT)
839
840 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
841 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
842 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
843 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
844 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
845 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
846
847 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
848 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
849 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
850 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
851 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
852
853 const_iv (ST_RDONLY)
854 const_iv (ST_NOSUID)
855 const_iv (ST_NODEV)
856 const_iv (ST_NOEXEC)
857 const_iv (ST_SYNCHRONOUS)
858 const_iv (ST_MANDLOCK)
859 const_iv (ST_WRITE)
860 const_iv (ST_APPEND)
861 const_iv (ST_IMMUTABLE)
862 const_iv (ST_NOATIME)
863 const_iv (ST_NODIRATIME)
864 const_iv (ST_RELATIME)
865
866 const_iv (PROT_NONE)
867 const_iv (PROT_EXEC)
868 const_iv (PROT_READ)
869 const_iv (PROT_WRITE)
870
871 /*const_iv (MAP_FIXED)*/
872 const_iv (MAP_PRIVATE)
873 const_iv (MAP_SHARED)
874 const_iv (MAP_ANONYMOUS)
875
876 /* linuxish */
877 const_iv (MAP_HUGETLB)
878 const_iv (MAP_LOCKED)
879 const_iv (MAP_NORESERVE)
880 const_iv (MAP_POPULATE)
881 const_iv (MAP_NONBLOCK)
882
883 const_eio (MCL_FUTURE)
884 const_eio (MCL_CURRENT)
885
886 const_eio (MS_ASYNC)
887 const_eio (MS_INVALIDATE)
888 const_eio (MS_SYNC)
889
890 const_eio (MT_MODIFY)
891
892 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893 const_eio (SYNC_FILE_RANGE_WRITE)
894 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
895
896 const_eio (READDIR_DENTS)
897 const_eio (READDIR_DIRS_FIRST)
898 const_eio (READDIR_STAT_ORDER)
899 const_eio (READDIR_FOUND_UNKNOWN)
900
901 const_eio (DT_UNKNOWN)
902 const_eio (DT_FIFO)
903 const_eio (DT_CHR)
904 const_eio (DT_DIR)
905 const_eio (DT_BLK)
906 const_eio (DT_REG)
907 const_eio (DT_LNK)
908 const_eio (DT_SOCK)
909 const_eio (DT_WHT)
910 };
911
1472 stash = gv_stashpv ("IO::AIO", 1); 912 aio_stash = gv_stashpv ("IO::AIO" , 1);
913 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
914 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1473 915
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 916 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 917 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1478 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1479#ifdef _WIN32
1480 X_MUTEX_CHECK (wrklock);
1481 X_MUTEX_CHECK (reslock);
1482 X_MUTEX_CHECK (reqlock);
1483 X_MUTEX_CHECK (reqwait);
1484 X_MUTEX_CHECK (preadwritelock);
1485 X_MUTEX_CHECK (readdirlock);
1486 918
1487 X_COND_CHECK (reqwait); 919 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1488#else
1489 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1490 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1491#endif
1492 920
1493 create_respipe (); 921 create_respipe ();
1494 922
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 923 if (eio_init (want_poll, done_poll) < 0)
1496} 924 croak ("IO::AIO: unable to initialise eio library");
1497 925
926 /* atfork child called in fifo order, so before eio's handler */
927 X_THREAD_ATFORK (0, 0, atfork_child);
928}
929
1498void 930void
1499max_poll_reqs (int nreqs) 931max_poll_reqs (unsigned int nreqs)
1500 PROTOTYPE: $ 932 PROTOTYPE: $
1501 CODE: 933 CODE:
1502 max_poll_reqs = nreqs; 934 eio_set_max_poll_reqs (nreqs);
1503 935
1504void 936void
1505max_poll_time (double nseconds) 937max_poll_time (double nseconds)
1506 PROTOTYPE: $ 938 PROTOTYPE: $
1507 CODE: 939 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 940 eio_set_max_poll_time (nseconds);
1509 941
1510void 942void
1511min_parallel (int nthreads) 943min_parallel (unsigned int nthreads)
1512 PROTOTYPE: $
1513
1514void
1515max_parallel (int nthreads)
1516 PROTOTYPE: $
1517
1518void
1519max_idle (int nthreads)
1520 PROTOTYPE: $ 944 PROTOTYPE: $
1521 CODE: 945 CODE:
1522 set_max_idle (nthreads); 946 eio_set_min_parallel (nthreads);
1523 947
1524int 948void
1525max_outstanding (int maxreqs) 949max_parallel (unsigned int nthreads)
1526 PROTOTYPE: $ 950 PROTOTYPE: $
1527 CODE: 951 CODE:
1528 RETVAL = max_outstanding; 952 eio_set_max_parallel (nthreads);
953
954void
955max_idle (unsigned int nthreads)
956 PROTOTYPE: $
957 CODE:
958 eio_set_max_idle (nthreads);
959
960void
961idle_timeout (unsigned int seconds)
962 PROTOTYPE: $
963 CODE:
964 eio_set_idle_timeout (seconds);
965
966void
967max_outstanding (unsigned int maxreqs)
968 PROTOTYPE: $
969 CODE:
1529 max_outstanding = maxreqs; 970 max_outstanding = maxreqs;
1530 OUTPUT:
1531 RETVAL
1532 971
1533void 972void
1534aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 973aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1535 PROTOTYPE: $$$;$
1536 PPCODE: 974 PPCODE:
1537{ 975{
1538 dREQ; 976 dREQ;
1539 977
1540 req->type = REQ_OPEN; 978 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 979 req->sv1 = newSVsv (pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1); 980 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 981 req->int1 = flags;
1544 req->mode = mode; 982 req->int2 = mode;
1545 983
1546 REQ_SEND; 984 REQ_SEND;
1547} 985}
1548 986
1549void 987void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 988aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 ALIAS: 989 ALIAS:
1553 aio_fsync = REQ_FSYNC 990 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 991 aio_fdatasync = EIO_FDATASYNC
1555 PPCODE: 992 PPCODE:
1556{ 993{
994 int fd = s_fileno_croak (fh, 0);
1557 dREQ; 995 dREQ;
1558 996
1559 req->type = ix; 997 req->type = ix;
1560 req->sv1 = newSVsv (fh); 998 req->sv1 = newSVsv (fh);
1561 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 999 req->int1 = fd;
1562 1000
1563 REQ_SEND (req); 1001 REQ_SEND (req);
1564} 1002}
1565 1003
1566void 1004void
1005aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1006 PPCODE:
1007{
1008 int fd = s_fileno_croak (fh, 0);
1009 dREQ;
1010
1011 req->type = EIO_SYNC_FILE_RANGE;
1012 req->sv1 = newSVsv (fh);
1013 req->int1 = fd;
1014 req->offs = offset;
1015 req->size = nbytes;
1016 req->int2 = flags;
1017
1018 REQ_SEND (req);
1019}
1020
1021void
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 1022aio_close (SV *fh, SV *callback=&PL_sv_undef)
1568 PROTOTYPE: $;$
1569 PPCODE: 1023 PPCODE:
1570{ 1024{
1025 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1026 int fd = s_fileno_croak (fh, 0);
1571 dREQ; 1027 dREQ;
1572 1028
1029 if (close_pipe < 0)
1030 {
1031 int pipefd [2];
1032
1033 if (pipe (pipefd) < 0
1034 || close (pipefd [1]) < 0
1035 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1036 abort (); /*D*/
1037
1038 close_pipe = pipefd [0];
1039 }
1040
1573 req->type = REQ_CLOSE; 1041 req->type = EIO_DUP2;
1574 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1042 req->int1 = close_pipe;
1043 req->sv2 = newSVsv (fh);
1044 req->int2 = fd;
1575 1045
1576 REQ_SEND (req); 1046 REQ_SEND (req);
1577} 1047}
1578 1048
1579void 1049void
1580aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1050aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1581 ALIAS: 1051 ALIAS:
1582 aio_read = REQ_READ 1052 aio_read = EIO_READ
1583 aio_write = REQ_WRITE 1053 aio_write = EIO_WRITE
1584 PROTOTYPE: $$$$$;$
1585 PPCODE: 1054 PPCODE:
1586{ 1055{
1587 STRLEN svlen; 1056 STRLEN svlen;
1057 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1588 char *svptr = SvPVbyte (data, svlen); 1058 char *svptr = SvPVbyte (data, svlen);
1589 UV len = SvUV (length); 1059 UV len = SvUV (length);
1590 1060
1591 SvUPGRADE (data, SVt_PV);
1592 SvPOK_on (data);
1593
1594 if (dataoffset < 0) 1061 if (dataoffset < 0)
1595 dataoffset += svlen; 1062 dataoffset += svlen;
1596 1063
1597 if (dataoffset < 0 || dataoffset > svlen) 1064 if (dataoffset < 0 || dataoffset > svlen)
1598 croak ("dataoffset outside of data scalar"); 1065 croak ("dataoffset outside of data scalar");
1599 1066
1600 if (ix == REQ_WRITE) 1067 if (ix == EIO_WRITE)
1601 { 1068 {
1602 /* write: check length and adjust. */ 1069 /* write: check length and adjust. */
1603 if (!SvOK (length) || len + dataoffset > svlen) 1070 if (!SvOK (length) || len + dataoffset > svlen)
1604 len = svlen - dataoffset; 1071 len = svlen - dataoffset;
1605 } 1072 }
1606 else 1073 else
1607 { 1074 {
1608 /* read: grow scalar as necessary */ 1075 /* read: check type and grow scalar as necessary */
1076 SvUPGRADE (data, SVt_PV);
1609 svptr = SvGROW (data, len + dataoffset + 1); 1077 svptr = SvGROW (data, len + dataoffset + 1);
1610 } 1078 }
1611 1079
1612 if (len < 0)
1613 croak ("length must not be negative");
1614
1615 { 1080 {
1616 dREQ; 1081 dREQ;
1617 1082
1618 req->type = ix; 1083 req->type = ix;
1619 req->sv1 = newSVsv (fh); 1084 req->sv1 = newSVsv (fh);
1620 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1085 req->int1 = fd;
1621 : IoOFP (sv_2io (fh)));
1622 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1086 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1623 req->size = len; 1087 req->size = len;
1624 req->sv2 = SvREFCNT_inc (data); 1088 req->sv2 = SvREFCNT_inc (data);
1625 req->ptr1 = (char *)svptr + dataoffset; 1089 req->ptr2 = (char *)svptr + dataoffset;
1626 req->stroffset = dataoffset; 1090 req->stroffset = dataoffset;
1627 1091
1628 if (!SvREADONLY (data)) 1092 if (!SvREADONLY (data))
1629 { 1093 {
1630 SvREADONLY_on (data); 1094 SvREADONLY_on (data);
… …
1635 } 1099 }
1636} 1100}
1637 1101
1638void 1102void
1639aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1103aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1640 PROTOTYPE: $$;$ 1104 ALIAS:
1105 aio_readlink = EIO_READLINK
1106 aio_realpath = EIO_REALPATH
1641 PPCODE: 1107 PPCODE:
1642{ 1108{
1643 SV *data; 1109 SV *data;
1644 dREQ; 1110 dREQ;
1645 1111
1646 data = newSV (NAME_MAX);
1647 SvPOK_on (data);
1648
1649 req->type = REQ_READLINK; 1112 req->type = ix;
1650 req->sv1 = newSVsv (path); 1113 req->sv1 = newSVsv (path);
1651 req->ptr2 = SvPVbyte_nolen (req->sv1); 1114 req->ptr1 = SvPVbyte_nolen (req->sv1);
1652 req->sv2 = data;
1653 req->ptr1 = SvPVbyte_nolen (data);
1654 1115
1655 REQ_SEND; 1116 REQ_SEND;
1656} 1117}
1657 1118
1658void 1119void
1659aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1120aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$$;$
1661 PPCODE: 1121 PPCODE:
1662{ 1122{
1123 int ifd = s_fileno_croak (in_fh , 0);
1124 int ofd = s_fileno_croak (out_fh, 1);
1663 dREQ; 1125 dREQ;
1664 1126
1665 req->type = REQ_SENDFILE; 1127 req->type = EIO_SENDFILE;
1666 req->sv1 = newSVsv (out_fh); 1128 req->sv1 = newSVsv (out_fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1129 req->int1 = ofd;
1668 req->sv2 = newSVsv (in_fh); 1130 req->sv2 = newSVsv (in_fh);
1669 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1131 req->int2 = ifd;
1670 req->offs = SvVAL64 (in_offset); 1132 req->offs = in_offset;
1671 req->size = length; 1133 req->size = length;
1672 1134
1673 REQ_SEND; 1135 REQ_SEND;
1674} 1136}
1675 1137
1676void 1138void
1677aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1139aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1678 PROTOTYPE: $$$;$
1679 PPCODE: 1140 PPCODE:
1680{ 1141{
1142 int fd = s_fileno_croak (fh, 0);
1681 dREQ; 1143 dREQ;
1682 1144
1683 req->type = REQ_READAHEAD; 1145 req->type = EIO_READAHEAD;
1684 req->sv1 = newSVsv (fh); 1146 req->sv1 = newSVsv (fh);
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1147 req->int1 = fd;
1686 req->offs = SvVAL64 (offset); 1148 req->offs = offset;
1687 req->size = length; 1149 req->size = length;
1688 1150
1689 REQ_SEND; 1151 REQ_SEND;
1690} 1152}
1691 1153
1692void 1154void
1693aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1155aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1694 ALIAS: 1156 ALIAS:
1695 aio_stat = REQ_STAT 1157 aio_stat = EIO_STAT
1696 aio_lstat = REQ_LSTAT 1158 aio_lstat = EIO_LSTAT
1159 aio_statvfs = EIO_STATVFS
1697 PPCODE: 1160 PPCODE:
1698{ 1161{
1699 dREQ; 1162 dREQ;
1700 1163
1701 req->ptr2 = malloc (sizeof (Stat_t));
1702 if (!req->ptr2)
1703 {
1704 req_destroy (req);
1705 croak ("out of memory during aio_stat statdata allocation");
1706 }
1707
1708 req->flags |= FLAG_PTR2_FREE;
1709 req->sv1 = newSVsv (fh_or_path); 1164 req->sv1 = newSVsv (fh_or_path);
1710 1165
1711 if (SvPOK (fh_or_path)) 1166 if (SvPOK (req->sv1))
1712 { 1167 {
1713 req->type = ix; 1168 req->type = ix;
1714 req->ptr1 = SvPVbyte_nolen (req->sv1); 1169 req->ptr1 = SvPVbyte_nolen (req->sv1);
1715 } 1170 }
1716 else 1171 else
1717 { 1172 {
1718 req->type = REQ_FSTAT; 1173 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1719 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1174 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1720 } 1175 }
1721 1176
1722 REQ_SEND; 1177 REQ_SEND;
1723} 1178}
1179
1180UV
1181major (UV dev)
1182 ALIAS:
1183 minor = 1
1184 CODE:
1185 RETVAL = ix ? major (dev) : minor (dev);
1186 OUTPUT:
1187 RETVAL
1188
1189UV
1190makedev (UV maj, UV min)
1191 CODE:
1192 RETVAL = makedev (maj, min);
1193 OUTPUT:
1194 RETVAL
1724 1195
1725void 1196void
1726aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1197aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1727 PPCODE: 1198 PPCODE:
1728{ 1199{
… …
1730 1201
1731 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1202 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1732 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1203 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1733 req->sv1 = newSVsv (fh_or_path); 1204 req->sv1 = newSVsv (fh_or_path);
1734 1205
1735 if (SvPOK (fh_or_path)) 1206 if (SvPOK (req->sv1))
1736 { 1207 {
1737 req->type = REQ_UTIME; 1208 req->type = EIO_UTIME;
1738 req->ptr1 = SvPVbyte_nolen (req->sv1); 1209 req->ptr1 = SvPVbyte_nolen (req->sv1);
1739 } 1210 }
1740 else 1211 else
1741 { 1212 {
1742 req->type = REQ_FUTIME; 1213 req->type = EIO_FUTIME;
1743 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1214 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1744 } 1215 }
1745 1216
1746 REQ_SEND; 1217 REQ_SEND;
1747} 1218}
… …
1753 dREQ; 1224 dREQ;
1754 1225
1755 req->sv1 = newSVsv (fh_or_path); 1226 req->sv1 = newSVsv (fh_or_path);
1756 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1227 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1757 1228
1758 if (SvPOK (fh_or_path)) 1229 if (SvPOK (req->sv1))
1759 { 1230 {
1760 req->type = REQ_TRUNCATE; 1231 req->type = EIO_TRUNCATE;
1761 req->ptr1 = SvPVbyte_nolen (req->sv1); 1232 req->ptr1 = SvPVbyte_nolen (req->sv1);
1762 } 1233 }
1763 else 1234 else
1764 { 1235 {
1765 req->type = REQ_FTRUNCATE; 1236 req->type = EIO_FTRUNCATE;
1766 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1237 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1767 } 1238 }
1768 1239
1769 REQ_SEND; 1240 REQ_SEND;
1770} 1241}
1771 1242
1772void 1243void
1773aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1244aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1245 ALIAS:
1246 aio_chmod = EIO_CHMOD
1247 aio_mkdir = EIO_MKDIR
1774 PPCODE: 1248 PPCODE:
1775{ 1249{
1776 dREQ; 1250 dREQ;
1777 1251
1778 req->mode = mode; 1252 req->int2 = mode;
1779 req->sv1 = newSVsv (fh_or_path); 1253 req->sv1 = newSVsv (fh_or_path);
1780 1254
1781 if (SvPOK (fh_or_path)) 1255 if (SvPOK (req->sv1))
1782 { 1256 {
1783 req->type = REQ_CHMOD; 1257 req->type = ix;
1784 req->ptr1 = SvPVbyte_nolen (req->sv1); 1258 req->ptr1 = SvPVbyte_nolen (req->sv1);
1785 } 1259 }
1786 else 1260 else
1787 { 1261 {
1788 req->type = REQ_FCHMOD; 1262 req->type = EIO_FCHMOD;
1789 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1263 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1790 } 1264 }
1791 1265
1792 REQ_SEND; 1266 REQ_SEND;
1793} 1267}
… …
1800 1274
1801 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1275 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1802 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1276 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1803 req->sv1 = newSVsv (fh_or_path); 1277 req->sv1 = newSVsv (fh_or_path);
1804 1278
1805 if (SvPOK (fh_or_path)) 1279 if (SvPOK (req->sv1))
1806 { 1280 {
1807 req->type = REQ_CHOWN; 1281 req->type = EIO_CHOWN;
1808 req->ptr1 = SvPVbyte_nolen (req->sv1); 1282 req->ptr1 = SvPVbyte_nolen (req->sv1);
1809 } 1283 }
1810 else 1284 else
1811 { 1285 {
1812 req->type = REQ_FCHOWN; 1286 req->type = EIO_FCHOWN;
1813 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1287 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1814 } 1288 }
1815 1289
1816 REQ_SEND; 1290 REQ_SEND;
1817} 1291}
1818 1292
1819void 1293void
1294aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1295 PPCODE:
1296{
1297 dREQ;
1298
1299 req->type = EIO_READDIR;
1300 req->sv1 = newSVsv (pathname);
1301 req->ptr1 = SvPVbyte_nolen (req->sv1);
1302 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1303
1304 if (flags & EIO_READDIR_DENTS)
1305 req->int1 |= EIO_READDIR_CUSTOM2;
1306
1307 REQ_SEND;
1308}
1309
1310void
1820aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1311aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1821 ALIAS: 1312 ALIAS:
1822 aio_unlink = REQ_UNLINK 1313 aio_unlink = EIO_UNLINK
1823 aio_rmdir = REQ_RMDIR 1314 aio_rmdir = EIO_RMDIR
1824 aio_readdir = REQ_READDIR 1315 aio_readdir = EIO_READDIR
1825 PPCODE: 1316 PPCODE:
1826{ 1317{
1827 dREQ; 1318 dREQ;
1828 1319
1829 req->type = ix; 1320 req->type = ix;
… …
1832 1323
1833 REQ_SEND; 1324 REQ_SEND;
1834} 1325}
1835 1326
1836void 1327void
1837aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1838 PPCODE:
1839{
1840 dREQ;
1841
1842 req->type = REQ_MKDIR;
1843 req->sv1 = newSVsv (pathname);
1844 req->ptr1 = SvPVbyte_nolen (req->sv1);
1845 req->mode = mode;
1846
1847 REQ_SEND;
1848}
1849
1850void
1851aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1328aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1852 ALIAS: 1329 ALIAS:
1853 aio_link = REQ_LINK 1330 aio_link = EIO_LINK
1854 aio_symlink = REQ_SYMLINK 1331 aio_symlink = EIO_SYMLINK
1855 aio_rename = REQ_RENAME 1332 aio_rename = EIO_RENAME
1856 PPCODE: 1333 PPCODE:
1857{ 1334{
1858 dREQ; 1335 dREQ;
1859 1336
1860 req->type = ix; 1337 req->type = ix;
1861 req->sv2 = newSVsv (oldpath); 1338 req->sv1 = newSVsv (oldpath);
1339 req->ptr1 = SvPVbyte_nolen (req->sv1);
1340 req->sv2 = newSVsv (newpath);
1862 req->ptr2 = SvPVbyte_nolen (req->sv2); 1341 req->ptr2 = SvPVbyte_nolen (req->sv2);
1863 req->sv1 = newSVsv (newpath);
1864 req->ptr1 = SvPVbyte_nolen (req->sv1);
1865 1342
1866 REQ_SEND; 1343 REQ_SEND;
1867} 1344}
1868 1345
1869void 1346void
1870aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1347aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1871 PPCODE: 1348 PPCODE:
1872{ 1349{
1873 dREQ; 1350 dREQ;
1874 1351
1875 req->type = REQ_MKNOD; 1352 req->type = EIO_MKNOD;
1876 req->sv1 = newSVsv (pathname); 1353 req->sv1 = newSVsv (pathname);
1877 req->ptr1 = SvPVbyte_nolen (req->sv1); 1354 req->ptr1 = SvPVbyte_nolen (req->sv1);
1878 req->mode = (mode_t)mode; 1355 req->int2 = (mode_t)mode;
1879 req->offs = dev; 1356 req->offs = dev;
1880 1357
1881 REQ_SEND; 1358 REQ_SEND;
1882} 1359}
1883 1360
1884void 1361void
1362aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1363 ALIAS:
1364 aio_mtouch = EIO_MTOUCH
1365 aio_msync = EIO_MSYNC
1366 PPCODE:
1367{
1368 STRLEN svlen;
1369 char *svptr = SvPVbyte (data, svlen);
1370 UV len = SvUV (length);
1371
1372 if (offset < 0)
1373 offset += svlen;
1374
1375 if (offset < 0 || offset > svlen)
1376 croak ("offset outside of scalar");
1377
1378 if (!SvOK (length) || len + offset > svlen)
1379 len = svlen - offset;
1380
1381 {
1382 dREQ;
1383
1384 req->type = ix;
1385 req->sv2 = SvREFCNT_inc (data);
1386 req->ptr2 = (char *)svptr + offset;
1387 req->size = len;
1388 req->int1 = flags;
1389
1390 REQ_SEND;
1391 }
1392}
1393
1394void
1395aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1396 PPCODE:
1397{
1398 STRLEN svlen;
1399 char *svptr = SvPVbyte (data, svlen);
1400 UV len = SvUV (length);
1401
1402 if (offset < 0)
1403 offset += svlen;
1404
1405 if (offset < 0 || offset > svlen)
1406 croak ("offset outside of scalar");
1407
1408 if (!SvOK (length) || len + offset > svlen)
1409 len = svlen - offset;
1410
1411 {
1412 dREQ;
1413
1414 req->type = EIO_MLOCK;
1415 req->sv2 = SvREFCNT_inc (data);
1416 req->ptr2 = (char *)svptr + offset;
1417 req->size = len;
1418
1419 REQ_SEND;
1420 }
1421}
1422
1423void
1424aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1425 PPCODE:
1426{
1427 dREQ;
1428
1429 req->type = EIO_MLOCKALL;
1430 req->int1 = flags;
1431
1432 REQ_SEND;
1433}
1434
1435void
1885aio_busy (double delay, SV *callback=&PL_sv_undef) 1436aio_busy (double delay, SV *callback=&PL_sv_undef)
1886 PPCODE: 1437 PPCODE:
1887{ 1438{
1888 dREQ; 1439 dREQ;
1889 1440
1890 req->type = REQ_BUSY; 1441 req->type = EIO_BUSY;
1891 req->nv1 = delay < 0. ? 0. : delay; 1442 req->nv1 = delay < 0. ? 0. : delay;
1892 1443
1893 REQ_SEND; 1444 REQ_SEND;
1894} 1445}
1895 1446
1896void 1447void
1897aio_group (SV *callback=&PL_sv_undef) 1448aio_group (SV *callback=&PL_sv_undef)
1898 PROTOTYPE: ;$
1899 PPCODE: 1449 PPCODE:
1900{ 1450{
1901 dREQ; 1451 dREQ;
1902 1452
1903 req->type = REQ_GROUP; 1453 req->type = EIO_GROUP;
1904 1454
1905 req_send (req); 1455 req_submit (req);
1906 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1456 XPUSHs (req_sv (req, aio_grp_stash));
1907} 1457}
1908 1458
1909void 1459void
1910aio_nop (SV *callback=&PL_sv_undef) 1460aio_nop (SV *callback=&PL_sv_undef)
1911 ALIAS: 1461 ALIAS:
1912 aio_nop = REQ_NOP 1462 aio_nop = EIO_NOP
1913 aio_sync = REQ_SYNC 1463 aio_sync = EIO_SYNC
1914 PPCODE: 1464 PPCODE:
1915{ 1465{
1916 dREQ; 1466 dREQ;
1917 1467
1918 req->type = ix; 1468 req->type = ix;
… …
1920 REQ_SEND; 1470 REQ_SEND;
1921} 1471}
1922 1472
1923int 1473int
1924aioreq_pri (int pri = 0) 1474aioreq_pri (int pri = 0)
1925 PROTOTYPE: ;$
1926 CODE: 1475 CODE:
1927 RETVAL = next_pri - PRI_BIAS; 1476 RETVAL = next_pri;
1928 if (items > 0) 1477 if (items > 0)
1929 { 1478 {
1930 if (pri < PRI_MIN) pri = PRI_MIN; 1479 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1931 if (pri > PRI_MAX) pri = PRI_MAX; 1480 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1932 next_pri = pri + PRI_BIAS; 1481 next_pri = pri;
1933 } 1482 }
1934 OUTPUT: 1483 OUTPUT:
1935 RETVAL 1484 RETVAL
1936 1485
1937void 1486void
1938aioreq_nice (int nice = 0) 1487aioreq_nice (int nice = 0)
1939 CODE: 1488 CODE:
1940 nice = next_pri - nice; 1489 nice = next_pri - nice;
1941 if (nice < PRI_MIN) nice = PRI_MIN; 1490 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1942 if (nice > PRI_MAX) nice = PRI_MAX; 1491 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1943 next_pri = nice + PRI_BIAS; 1492 next_pri = nice;
1944 1493
1945void 1494void
1946flush () 1495flush ()
1947 PROTOTYPE:
1948 CODE: 1496 CODE:
1949 while (nreqs) 1497 while (eio_nreqs ())
1950 { 1498 {
1951 poll_wait (); 1499 poll_wait ();
1952 poll_cb (); 1500 poll_cb ();
1953 } 1501 }
1954 1502
1955int 1503int
1956poll() 1504poll ()
1957 PROTOTYPE:
1958 CODE: 1505 CODE:
1959 poll_wait (); 1506 poll_wait ();
1960 RETVAL = poll_cb (); 1507 RETVAL = poll_cb ();
1961 OUTPUT: 1508 OUTPUT:
1962 RETVAL 1509 RETVAL
1963 1510
1964int 1511int
1965poll_fileno() 1512poll_fileno ()
1966 PROTOTYPE:
1967 CODE: 1513 CODE:
1968 RETVAL = respipe [0]; 1514 RETVAL = s_epipe_fd (&respipe);
1969 OUTPUT: 1515 OUTPUT:
1970 RETVAL 1516 RETVAL
1971 1517
1972int 1518int
1973poll_cb(...) 1519poll_cb (...)
1974 PROTOTYPE: 1520 PROTOTYPE:
1975 CODE: 1521 CODE:
1976 RETVAL = poll_cb (); 1522 RETVAL = poll_cb ();
1977 OUTPUT: 1523 OUTPUT:
1978 RETVAL 1524 RETVAL
1979 1525
1980void 1526void
1981poll_wait() 1527poll_wait ()
1982 PROTOTYPE:
1983 CODE: 1528 CODE:
1984 poll_wait (); 1529 poll_wait ();
1985 1530
1986void
1987setsig (int signum = SIGIO)
1988 PROTOTYPE: ;$
1989 CODE:
1990{
1991 if (block_sig_level)
1992 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1993
1994 X_LOCK (reslock);
1995 main_tid = pthread_self ();
1996 main_sig = signum;
1997 X_UNLOCK (reslock);
1998
1999 if (main_sig && npending)
2000 pthread_kill (main_tid, main_sig);
2001}
2002
2003void
2004aio_block (SV *cb)
2005 PROTOTYPE: &
2006 PPCODE:
2007{
2008 int count;
2009
2010 block_sig ();
2011 PUSHMARK (SP);
2012 PUTBACK;
2013 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
2014 unblock_sig ();
2015
2016 if (SvTRUE (ERRSV))
2017 croak (0);
2018
2019 XSRETURN (count);
2020}
2021
2022int 1531int
2023nreqs() 1532nreqs ()
2024 PROTOTYPE:
2025 CODE: 1533 CODE:
2026 RETVAL = nreqs; 1534 RETVAL = eio_nreqs ();
2027 OUTPUT: 1535 OUTPUT:
2028 RETVAL 1536 RETVAL
2029 1537
2030int 1538int
2031nready() 1539nready ()
2032 PROTOTYPE:
2033 CODE: 1540 CODE:
2034 RETVAL = get_nready (); 1541 RETVAL = eio_nready ();
2035 OUTPUT: 1542 OUTPUT:
2036 RETVAL 1543 RETVAL
2037 1544
2038int 1545int
2039npending() 1546npending ()
2040 PROTOTYPE:
2041 CODE: 1547 CODE:
2042 RETVAL = get_npending (); 1548 RETVAL = eio_npending ();
2043 OUTPUT: 1549 OUTPUT:
2044 RETVAL 1550 RETVAL
2045 1551
2046int 1552int
2047nthreads() 1553nthreads ()
2048 PROTOTYPE:
2049 CODE: 1554 CODE:
2050 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1555 RETVAL = eio_nthreads ();
2051 RETVAL = started;
2052 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2053 OUTPUT: 1556 OUTPUT:
2054 RETVAL 1557 RETVAL
2055 1558
1559int
1560fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1561 CODE:
1562 RETVAL = posix_fadvise (fh, offset, length, advice);
1563 OUTPUT:
1564 RETVAL
1565
1566ssize_t
1567sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1568 CODE:
1569 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1570 OUTPUT:
1571 RETVAL
1572
1573void
1574mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1575 PPCODE:
1576 sv_unmagic (scalar, MMAP_MAGIC);
1577{
1578 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1579 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1580 if (addr == (void *)-1)
1581 XSRETURN_NO;
1582
1583 sv_force_normal (scalar);
1584
1585 /* we store the length in mg_obj, as namlen is I32 :/ */
1586 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1587 ->mg_obj = (SV *)length;
1588
1589 SvUPGRADE (scalar, SVt_PV); /* nop... */
1590
1591 if (!(prot & PROT_WRITE))
1592 SvREADONLY_on (scalar);
1593
1594 if (SvLEN (scalar))
1595 Safefree (SvPVX (scalar));
1596
1597 SvPVX (scalar) = (char *)addr;
1598 SvCUR_set (scalar, length);
1599 SvLEN_set (scalar, 0);
1600 SvPOK_only (scalar);
1601
1602 XSRETURN_YES;
1603}
1604
1605void
1606munmap (SV *scalar)
1607 CODE:
1608 sv_unmagic (scalar, MMAP_MAGIC);
1609
1610int
1611madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1612 ALIAS:
1613 mprotect = 1
1614 CODE:
1615{
1616 STRLEN svlen;
1617 void *addr = SvPVbyte (scalar, svlen);
1618 size_t len = SvUV (length);
1619
1620 if (offset < 0)
1621 offset += svlen;
1622
1623 if (offset < 0 || offset > svlen)
1624 croak ("offset outside of scalar");
1625
1626 if (!SvOK (length) || len + offset > svlen)
1627 len = svlen - offset;
1628
1629 addr = (void *)(((intptr_t)addr) + offset);
1630 eio_page_align (&addr, &len);
1631
1632 switch (ix)
1633 {
1634 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1635 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1636 }
1637}
1638 OUTPUT:
1639 RETVAL
1640
1641int
1642munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1643 CODE:
1644{
1645 STRLEN svlen;
1646 void *addr = SvPVbyte (scalar, svlen);
1647 size_t len = SvUV (length);
1648
1649 if (offset < 0)
1650 offset += svlen;
1651
1652 if (offset < 0 || offset > svlen)
1653 croak ("offset outside of scalar");
1654
1655 if (!SvOK (length) || len + offset > svlen)
1656 len = svlen - offset;
1657
1658 addr = (void *)(((intptr_t)addr) + offset);
1659 eio_page_align (&addr, &len);
1660#if _POSIX_MEMLOCK_RANGE
1661 RETVAL = munlock (addr, len);
1662#else
1663 RETVAL = ((errno = ENOSYS), -1);
1664#endif
1665}
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670munlockall ()
1671 CODE:
1672#if _POSIX_MEMLOCK
1673 munlockall ();
1674#else
1675 RETVAL = -1;
1676 errno = ENOSYS;
1677#endif
1678 OUTPUT:
1679 RETVAL
1680
1681void _on_next_submit (SV *cb)
1682 CODE:
1683 SvREFCNT_dec (on_next_submit);
1684 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1685
2056PROTOTYPES: DISABLE 1686PROTOTYPES: DISABLE
2057 1687
2058MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1688MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2059 1689
2060void 1690void
2061cancel (aio_req_ornot req) 1691cancel (aio_req_ornot req)
2062 CODE: 1692 CODE:
2063 req_cancel (req); 1693 eio_cancel (req);
2064 1694
2065void 1695void
2066cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1696cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2067 CODE: 1697 PPCODE:
1698{
1699 if (GIMME_V != G_VOID)
1700 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1701
1702 if (items > 1)
1703 {
1704 SV *cb_cv =get_cb (callback);
1705
2068 SvREFCNT_dec (req->callback); 1706 SvREFCNT_dec (req->callback);
2069 req->callback = newSVsv (callback); 1707 req->callback = SvREFCNT_inc (cb_cv);
1708 }
1709}
2070 1710
2071MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1711MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2072 1712
2073void 1713void
2074add (aio_req grp, ...) 1714add (aio_req grp, ...)
2075 PPCODE: 1715 PPCODE:
2076{ 1716{
2077 int i; 1717 int i;
2078 aio_req req;
2079
2080 if (main_sig && !block_sig_level)
2081 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2082 1718
2083 if (grp->int1 == 2) 1719 if (grp->int1 == 2)
2084 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1720 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2085 1721
2086 for (i = 1; i < items; ++i ) 1722 for (i = 1; i < items; ++i )
2087 { 1723 {
1724 aio_req req;
1725
2088 if (GIMME_V != G_VOID) 1726 if (GIMME_V != G_VOID)
2089 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1727 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2090 1728
2091 req = SvAIO_REQ (ST (i)); 1729 req = SvAIO_REQ (ST (i));
2092 1730
2093 if (req) 1731 if (req)
2094 { 1732 eio_grp_add (grp, req);
2095 ++grp->size;
2096 req->grp = grp;
2097
2098 req->grp_prev = 0;
2099 req->grp_next = grp->grp_first;
2100
2101 if (grp->grp_first)
2102 grp->grp_first->grp_prev = req;
2103
2104 grp->grp_first = req;
2105 }
2106 } 1733 }
2107} 1734}
2108 1735
2109void 1736void
2110cancel_subs (aio_req_ornot req) 1737cancel_subs (aio_req_ornot req)
… …
2119 AV *av; 1746 AV *av;
2120 1747
2121 grp->errorno = errno; 1748 grp->errorno = errno;
2122 1749
2123 av = newAV (); 1750 av = newAV ();
1751 av_extend (av, items - 1);
2124 1752
2125 for (i = 1; i < items; ++i ) 1753 for (i = 1; i < items; ++i )
2126 av_push (av, newSVsv (ST (i))); 1754 av_push (av, newSVsv (ST (i)));
2127 1755
2128 SvREFCNT_dec (grp->sv1); 1756 SvREFCNT_dec (grp->sv1);
… …
2135 grp->errorno = errorno; 1763 grp->errorno = errorno;
2136 1764
2137void 1765void
2138limit (aio_req grp, int limit) 1766limit (aio_req grp, int limit)
2139 CODE: 1767 CODE:
2140 grp->int2 = limit; 1768 eio_grp_limit (grp, limit);
2141 aio_grp_feed (grp);
2142 1769
2143void 1770void
2144feed (aio_req grp, SV *callback=&PL_sv_undef) 1771feed (aio_req grp, SV *callback=&PL_sv_undef)
2145 CODE: 1772 CODE:
2146{ 1773{
2147 SvREFCNT_dec (grp->sv2); 1774 SvREFCNT_dec (grp->sv2);
2148 grp->sv2 = newSVsv (callback); 1775 grp->sv2 = newSVsv (callback);
1776 grp->feed = aio_grp_feed;
2149 1777
2150 if (grp->int2 <= 0) 1778 if (grp->int2 <= 0)
2151 grp->int2 = 2; 1779 grp->int2 = 2;
2152 1780
2153 aio_grp_feed (grp); 1781 eio_grp_limit (grp, grp->int2);
2154} 1782}
2155 1783

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