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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.114 by root, Sat Apr 26 12:00:23 2008 UTC vs.
Revision 1.183 by root, Tue Jul 5 09:24:11 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
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
656 671
657static void 672static void
658create_respipe (void) 673create_respipe (void)
659{ 674{
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)) 675 if (s_epipe_renew (&respipe))
669#endif
670 croak ("unable to initialize result pipe"); 676 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} 677}
789 678
790static void poll_wait (void) 679static void poll_wait (void)
791{ 680{
792 fd_set rfd;
793
794 while (nreqs) 681 while (eio_nreqs ())
795 { 682 {
796 int size; 683 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 684
685 X_LOCK (reslock);
798 size = res_queue.size; 686 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 687 X_UNLOCK (reslock);
800 688
801 if (size) 689 if (size)
802 return; 690 return;
803 691
804 maybe_start_thread (); 692 etp_maybe_start_thread ();
805 693
806 FD_ZERO (&rfd); 694 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 695 }
811} 696}
812 697
813static int poll_cb (void) 698static int poll_cb (void)
814{ 699{
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 (;;) 700 for (;;)
828 { 701 {
829 for (;;) 702 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 703
833 X_LOCK (reslock); 704 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); 705 croak (0);
868 }
869 706
870 count++; 707 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 708 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;
889 709
890 poll_wait (); 710 poll_wait ();
891
892 ++maxreqs;
893 } 711 }
712}
894 713
895 unblock_sig (); 714static void atfork_child (void)
896 return count; 715{
716 create_respipe ();
897} 717}
898 718
899/*****************************************************************************/ 719/*****************************************************************************/
900/* work around various missing functions */
901 720
902#if !HAVE_PREADWRITE 721#if !_POSIX_MAPPED_FILES
903# define pread aio_pread 722# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
904# define pwrite aio_pwrite 723# 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 724#endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079 725
1080 if (res < 0 726#if !_POSIX_MEMORY_PROTECTION
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 727# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1082#if __solaris 728# define PROT_NONE 0
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 729# define PROT_WRITE 0
730# define MAP_PRIVATE 0
731# define MAP_SHARED 0
732# define MAP_FIXED 0
1084#endif 733#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090 734
1091 res = 0; 735#define MMAP_MAGIC PERL_MAGIC_ext
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
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 736
1183static int 737static int
1184aio_close (int fd) 738mmap_free (pTHX_ SV *sv, MAGIC *mg)
1185{ 739{
1186 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 740 int old_errno = errno;
741 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
742 errno = old_errno;
1187 743
1188 X_LOCK (wrklock); 744 mg->mg_obj = 0; /* just in case */
1189 745
1190 if (close_pipe < 0) 746 SvREADONLY_off (sv);
1191 {
1192 int pipefd [2];
1193 747
1194 if (pipe (pipefd) < 0 748 if (SvPVX (sv) != mg->mg_ptr)
1195 || close (pipefd [1]) < 0 749 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1196 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1197 {
1198 X_UNLOCK (wrklock);
1199 return -1;
1200 }
1201 750
1202 close_pipe = pipefd [0]; 751 SvCUR_set (sv, 0);
1203 } 752 SvPVX (sv) = 0;
753 SvOK_off (sv);
1204 754
1205 X_UNLOCK (wrklock); 755 return 0;
1206
1207 return dup2 (close_pipe, fd) < 0 ? -1 : 0;
1208} 756}
757
758static MGVTBL mmap_vtbl = {
759 0, 0, 0, 0, mmap_free
760};
1209 761
1210/*****************************************************************************/ 762/*****************************************************************************/
1211 763
1212X_THREAD_PROC (aio_proc) 764static SV *
765get_cb (SV *cb_sv)
1213{ 766{
1214 aio_req req; 767 SvGETMAGIC (cb_sv);
1215 struct timespec ts; 768 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} 769}
1444 770
1445#define dREQ \ 771#define dREQ \
772 SV *cb_cv; \
1446 aio_req req; \ 773 aio_req req; \
1447 int req_pri = next_pri; \ 774 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \ 775 next_pri = EIO_PRI_DEFAULT; \
1449 \ 776 \
1450 if (SvOK (callback) && !SvROK (callback)) \ 777 cb_cv = get_cb (callback); \
1451 croak ("callback must be undef or of reference type"); \
1452 \ 778 \
1453 Newz (0, req, 1, aio_cb); \ 779 Newz (0, req, 1, eio_req); \
1454 if (!req) \ 780 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \ 781 croak ("out of memory during eio_req allocation"); \
1456 \ 782 \
1457 req->callback = newSVsv (callback); \ 783 req->callback = SvREFCNT_inc (cb_cv); \
1458 req->pri = req_pri 784 req->pri = req_pri
1459 785
1460#define REQ_SEND \ 786#define REQ_SEND \
787 PUTBACK; \
1461 req_send (req); \ 788 req_submit (req); \
789 SPAGAIN; \
1462 \ 790 \
1463 if (GIMME_V != G_VOID) \ 791 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 792 XPUSHs (req_sv (req, aio_req_stash));
1465 793
1466MODULE = IO::AIO PACKAGE = IO::AIO 794MODULE = IO::AIO PACKAGE = IO::AIO
1467 795
1468PROTOTYPES: ENABLE 796PROTOTYPES: ENABLE
1469 797
1470BOOT: 798BOOT:
1471{ 799{
800 static const struct {
801 const char *name;
802 IV iv;
803 } *civ, const_iv[] = {
804# define const_niv(name, value) { # name, (IV) value },
805# define const_iv(name) { # name, (IV) name },
806# define const_eio(name) { # name, (IV) EIO_ ## name },
807 const_iv (EXDEV)
808 const_iv (ENOSYS)
809 const_iv (O_RDONLY)
810 const_iv (O_WRONLY)
811 const_iv (O_RDWR)
812 const_iv (O_CREAT)
813 const_iv (O_TRUNC)
814 const_iv (O_EXCL)
815 const_iv (O_APPEND)
816
817 const_iv (O_ASYNC)
818 const_iv (O_DIRECT)
819 const_iv (O_NOATIME)
820
821 const_iv (O_CLOEXEC)
822 const_iv (O_NOCTTY)
823 const_iv (O_NOFOLLOW)
824 const_iv (O_NONBLOCK)
825 const_iv (O_EXEC)
826 const_iv (O_SEARCH)
827 const_iv (O_DIRECTORY)
828 const_iv (O_DSYNC)
829 const_iv (O_RSYNC)
830 const_iv (O_SYNC)
831 const_iv (O_TTY_INIT)
832
833 const_iv (S_IFIFO)
834 const_iv (S_IFCHR)
835 const_iv (S_IFBLK)
836 const_iv (S_IFLNK)
837 const_iv (S_IFREG)
838 const_iv (S_IFDIR)
839 const_iv (S_IFWHT)
840 const_iv (S_IFSOCK)
841 const_iv (S_IFMT)
842
843 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
844 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
845 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
846 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
847 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
848 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
849
850 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
851 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
852 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
853 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
854 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
855
856 const_iv (ST_RDONLY)
857 const_iv (ST_NOSUID)
858 const_iv (ST_NODEV)
859 const_iv (ST_NOEXEC)
860 const_iv (ST_SYNCHRONOUS)
861 const_iv (ST_MANDLOCK)
862 const_iv (ST_WRITE)
863 const_iv (ST_APPEND)
864 const_iv (ST_IMMUTABLE)
865 const_iv (ST_NOATIME)
866 const_iv (ST_NODIRATIME)
867 const_iv (ST_RELATIME)
868
869 const_iv (PROT_NONE)
870 const_iv (PROT_EXEC)
871 const_iv (PROT_READ)
872 const_iv (PROT_WRITE)
873
874 /*const_iv (MAP_FIXED)*/
875 const_iv (MAP_PRIVATE)
876 const_iv (MAP_SHARED)
877 const_iv (MAP_ANONYMOUS)
878
879 /* linuxish */
880 const_iv (MAP_HUGETLB)
881 const_iv (MAP_LOCKED)
882 const_iv (MAP_NORESERVE)
883 const_iv (MAP_POPULATE)
884 const_iv (MAP_NONBLOCK)
885
886 const_eio (MCL_FUTURE)
887 const_eio (MCL_CURRENT)
888
889 const_eio (MS_ASYNC)
890 const_eio (MS_INVALIDATE)
891 const_eio (MS_SYNC)
892
893 const_eio (MT_MODIFY)
894
895 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
896 const_eio (SYNC_FILE_RANGE_WRITE)
897 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
898
899 const_eio (READDIR_DENTS)
900 const_eio (READDIR_DIRS_FIRST)
901 const_eio (READDIR_STAT_ORDER)
902 const_eio (READDIR_FOUND_UNKNOWN)
903
904 const_eio (DT_UNKNOWN)
905 const_eio (DT_FIFO)
906 const_eio (DT_CHR)
907 const_eio (DT_DIR)
908 const_eio (DT_BLK)
909 const_eio (DT_REG)
910 const_eio (DT_LNK)
911 const_eio (DT_SOCK)
912 const_eio (DT_WHT)
913 };
914
1472 stash = gv_stashpv ("IO::AIO", 1); 915 aio_stash = gv_stashpv ("IO::AIO" , 1);
916 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
917 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1473 918
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 919 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 920 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 921
1487 X_COND_CHECK (reqwait); 922 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 923
1493 create_respipe (); 924 create_respipe ();
1494 925
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 926 if (eio_init (want_poll, done_poll) < 0)
1496} 927 croak ("IO::AIO: unable to initialise eio library");
1497 928
929 /* atfork child called in fifo order, so before eio's handler */
930 X_THREAD_ATFORK (0, 0, atfork_child);
931}
932
1498void 933void
1499max_poll_reqs (int nreqs) 934max_poll_reqs (unsigned int nreqs)
1500 PROTOTYPE: $ 935 PROTOTYPE: $
1501 CODE: 936 CODE:
1502 max_poll_reqs = nreqs; 937 eio_set_max_poll_reqs (nreqs);
1503 938
1504void 939void
1505max_poll_time (double nseconds) 940max_poll_time (double nseconds)
1506 PROTOTYPE: $ 941 PROTOTYPE: $
1507 CODE: 942 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 943 eio_set_max_poll_time (nseconds);
1509 944
1510void 945void
1511min_parallel (int nthreads) 946min_parallel (unsigned int nthreads)
1512 PROTOTYPE: $
1513
1514void
1515max_parallel (int nthreads)
1516 PROTOTYPE: $
1517
1518void
1519max_idle (int nthreads)
1520 PROTOTYPE: $ 947 PROTOTYPE: $
1521 CODE: 948 CODE:
1522 set_max_idle (nthreads); 949 eio_set_min_parallel (nthreads);
1523 950
1524int 951void
1525max_outstanding (int maxreqs) 952max_parallel (unsigned int nthreads)
1526 PROTOTYPE: $ 953 PROTOTYPE: $
1527 CODE: 954 CODE:
1528 RETVAL = max_outstanding; 955 eio_set_max_parallel (nthreads);
956
957void
958max_idle (unsigned int nthreads)
959 PROTOTYPE: $
960 CODE:
961 eio_set_max_idle (nthreads);
962
963void
964idle_timeout (unsigned int seconds)
965 PROTOTYPE: $
966 CODE:
967 eio_set_idle_timeout (seconds);
968
969void
970max_outstanding (unsigned int maxreqs)
971 PROTOTYPE: $
972 CODE:
1529 max_outstanding = maxreqs; 973 max_outstanding = maxreqs;
1530 OUTPUT:
1531 RETVAL
1532 974
1533void 975void
1534aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 976aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1535 PROTOTYPE: $$$;$
1536 PPCODE: 977 PPCODE:
1537{ 978{
1538 dREQ; 979 dREQ;
1539 980
1540 req->type = REQ_OPEN; 981 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 982 req->sv1 = newSVsv (pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1); 983 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 984 req->int1 = flags;
1544 req->mode = mode; 985 req->int2 = mode;
1545 986
1546 REQ_SEND; 987 REQ_SEND;
1547} 988}
1548 989
1549void 990void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 991aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 ALIAS: 992 ALIAS:
1553 aio_fsync = REQ_FSYNC 993 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 994 aio_fdatasync = EIO_FDATASYNC
1555 PPCODE: 995 PPCODE:
1556{ 996{
997 int fd = s_fileno_croak (fh, 0);
1557 dREQ; 998 dREQ;
1558 999
1559 req->type = ix; 1000 req->type = ix;
1560 req->sv1 = newSVsv (fh); 1001 req->sv1 = newSVsv (fh);
1561 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1002 req->int1 = fd;
1562 1003
1563 REQ_SEND (req); 1004 REQ_SEND (req);
1564} 1005}
1565 1006
1566void 1007void
1008aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1009 PPCODE:
1010{
1011 int fd = s_fileno_croak (fh, 0);
1012 dREQ;
1013
1014 req->type = EIO_SYNC_FILE_RANGE;
1015 req->sv1 = newSVsv (fh);
1016 req->int1 = fd;
1017 req->offs = offset;
1018 req->size = nbytes;
1019 req->int2 = flags;
1020
1021 REQ_SEND (req);
1022}
1023
1024void
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 1025aio_close (SV *fh, SV *callback=&PL_sv_undef)
1568 PROTOTYPE: $;$
1569 PPCODE: 1026 PPCODE:
1570{ 1027{
1028 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1029 int fd = s_fileno_croak (fh, 0);
1571 dREQ; 1030 dREQ;
1572 1031
1032 if (close_pipe < 0)
1033 {
1034 int pipefd [2];
1035
1036 if (pipe (pipefd) < 0
1037 || close (pipefd [1]) < 0
1038 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1039 abort (); /*D*/
1040
1041 close_pipe = pipefd [0];
1042 }
1043
1573 req->type = REQ_CLOSE; 1044 req->type = EIO_DUP2;
1045 req->int1 = close_pipe;
1574 req->sv1 = newSVsv (fh); 1046 req->sv2 = newSVsv (fh);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1047 req->int2 = fd;
1576 1048
1577 REQ_SEND (req); 1049 REQ_SEND (req);
1578} 1050}
1579 1051
1580void 1052void
1581aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1053aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1582 ALIAS: 1054 ALIAS:
1583 aio_read = REQ_READ 1055 aio_read = EIO_READ
1584 aio_write = REQ_WRITE 1056 aio_write = EIO_WRITE
1585 PROTOTYPE: $$$$$;$
1586 PPCODE: 1057 PPCODE:
1587{ 1058{
1588 STRLEN svlen; 1059 STRLEN svlen;
1060 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1589 char *svptr = SvPVbyte (data, svlen); 1061 char *svptr = SvPVbyte (data, svlen);
1590 UV len = SvUV (length); 1062 UV len = SvUV (length);
1591 1063
1592 SvUPGRADE (data, SVt_PV);
1593 SvPOK_on (data);
1594
1595 if (dataoffset < 0) 1064 if (dataoffset < 0)
1596 dataoffset += svlen; 1065 dataoffset += svlen;
1597 1066
1598 if (dataoffset < 0 || dataoffset > svlen) 1067 if (dataoffset < 0 || dataoffset > svlen)
1599 croak ("dataoffset outside of data scalar"); 1068 croak ("dataoffset outside of data scalar");
1600 1069
1601 if (ix == REQ_WRITE) 1070 if (ix == EIO_WRITE)
1602 { 1071 {
1603 /* write: check length and adjust. */ 1072 /* write: check length and adjust. */
1604 if (!SvOK (length) || len + dataoffset > svlen) 1073 if (!SvOK (length) || len + dataoffset > svlen)
1605 len = svlen - dataoffset; 1074 len = svlen - dataoffset;
1606 } 1075 }
1607 else 1076 else
1608 { 1077 {
1609 /* read: grow scalar as necessary */ 1078 /* read: check type and grow scalar as necessary */
1079 SvUPGRADE (data, SVt_PV);
1610 svptr = SvGROW (data, len + dataoffset + 1); 1080 svptr = SvGROW (data, len + dataoffset + 1);
1611 } 1081 }
1612 1082
1613 if (len < 0)
1614 croak ("length must not be negative");
1615
1616 { 1083 {
1617 dREQ; 1084 dREQ;
1618 1085
1619 req->type = ix; 1086 req->type = ix;
1620 req->sv1 = newSVsv (fh); 1087 req->sv1 = newSVsv (fh);
1621 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1088 req->int1 = fd;
1622 : IoOFP (sv_2io (fh)));
1623 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1089 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1624 req->size = len; 1090 req->size = len;
1625 req->sv2 = SvREFCNT_inc (data); 1091 req->sv2 = SvREFCNT_inc (data);
1626 req->ptr1 = (char *)svptr + dataoffset; 1092 req->ptr2 = (char *)svptr + dataoffset;
1627 req->stroffset = dataoffset; 1093 req->stroffset = dataoffset;
1628 1094
1629 if (!SvREADONLY (data)) 1095 if (!SvREADONLY (data))
1630 { 1096 {
1631 SvREADONLY_on (data); 1097 SvREADONLY_on (data);
… …
1636 } 1102 }
1637} 1103}
1638 1104
1639void 1105void
1640aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1106aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1641 PROTOTYPE: $$;$ 1107 ALIAS:
1108 aio_readlink = EIO_READLINK
1109 aio_realpath = EIO_REALPATH
1642 PPCODE: 1110 PPCODE:
1643{ 1111{
1644 SV *data; 1112 SV *data;
1645 dREQ; 1113 dREQ;
1646 1114
1647 data = newSV (NAME_MAX);
1648 SvPOK_on (data);
1649
1650 req->type = REQ_READLINK; 1115 req->type = ix;
1651 req->sv1 = newSVsv (path); 1116 req->sv1 = newSVsv (path);
1652 req->ptr2 = SvPVbyte_nolen (req->sv1); 1117 req->ptr1 = SvPVbyte_nolen (req->sv1);
1653 req->sv2 = data;
1654 req->ptr1 = SvPVbyte_nolen (data);
1655 1118
1656 REQ_SEND; 1119 REQ_SEND;
1657} 1120}
1658 1121
1659void 1122void
1660aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1123aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$$;$
1662 PPCODE: 1124 PPCODE:
1663{ 1125{
1126 int ifd = s_fileno_croak (in_fh , 0);
1127 int ofd = s_fileno_croak (out_fh, 1);
1664 dREQ; 1128 dREQ;
1665 1129
1666 req->type = REQ_SENDFILE; 1130 req->type = EIO_SENDFILE;
1667 req->sv1 = newSVsv (out_fh); 1131 req->sv1 = newSVsv (out_fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1132 req->int1 = ofd;
1669 req->sv2 = newSVsv (in_fh); 1133 req->sv2 = newSVsv (in_fh);
1670 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1134 req->int2 = ifd;
1671 req->offs = SvVAL64 (in_offset); 1135 req->offs = in_offset;
1672 req->size = length; 1136 req->size = length;
1673 1137
1674 REQ_SEND; 1138 REQ_SEND;
1675} 1139}
1676 1140
1677void 1141void
1678aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1142aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1679 PROTOTYPE: $$$;$
1680 PPCODE: 1143 PPCODE:
1681{ 1144{
1145 int fd = s_fileno_croak (fh, 0);
1682 dREQ; 1146 dREQ;
1683 1147
1684 req->type = REQ_READAHEAD; 1148 req->type = EIO_READAHEAD;
1685 req->sv1 = newSVsv (fh); 1149 req->sv1 = newSVsv (fh);
1686 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1150 req->int1 = fd;
1687 req->offs = SvVAL64 (offset); 1151 req->offs = offset;
1688 req->size = length; 1152 req->size = length;
1689 1153
1690 REQ_SEND; 1154 REQ_SEND;
1691} 1155}
1692 1156
1693void 1157void
1694aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1158aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1695 ALIAS: 1159 ALIAS:
1696 aio_stat = REQ_STAT 1160 aio_stat = EIO_STAT
1697 aio_lstat = REQ_LSTAT 1161 aio_lstat = EIO_LSTAT
1162 aio_statvfs = EIO_STATVFS
1698 PPCODE: 1163 PPCODE:
1699{ 1164{
1700 dREQ; 1165 dREQ;
1701 1166
1702 req->ptr2 = malloc (sizeof (Stat_t));
1703 if (!req->ptr2)
1704 {
1705 req_destroy (req);
1706 croak ("out of memory during aio_stat statdata allocation");
1707 }
1708
1709 req->flags |= FLAG_PTR2_FREE;
1710 req->sv1 = newSVsv (fh_or_path); 1167 req->sv1 = newSVsv (fh_or_path);
1711 1168
1712 if (SvPOK (fh_or_path)) 1169 if (SvPOK (req->sv1))
1713 { 1170 {
1714 req->type = ix; 1171 req->type = ix;
1715 req->ptr1 = SvPVbyte_nolen (req->sv1); 1172 req->ptr1 = SvPVbyte_nolen (req->sv1);
1716 } 1173 }
1717 else 1174 else
1718 { 1175 {
1719 req->type = REQ_FSTAT; 1176 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1720 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1177 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1721 } 1178 }
1722 1179
1723 REQ_SEND; 1180 REQ_SEND;
1724} 1181}
1182
1183UV
1184major (UV dev)
1185 ALIAS:
1186 minor = 1
1187 CODE:
1188 RETVAL = ix ? major (dev) : minor (dev);
1189 OUTPUT:
1190 RETVAL
1191
1192UV
1193makedev (UV maj, UV min)
1194 CODE:
1195 RETVAL = makedev (maj, min);
1196 OUTPUT:
1197 RETVAL
1725 1198
1726void 1199void
1727aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1200aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1728 PPCODE: 1201 PPCODE:
1729{ 1202{
… …
1731 1204
1732 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1205 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1733 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1206 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1734 req->sv1 = newSVsv (fh_or_path); 1207 req->sv1 = newSVsv (fh_or_path);
1735 1208
1736 if (SvPOK (fh_or_path)) 1209 if (SvPOK (req->sv1))
1737 { 1210 {
1738 req->type = REQ_UTIME; 1211 req->type = EIO_UTIME;
1739 req->ptr1 = SvPVbyte_nolen (req->sv1); 1212 req->ptr1 = SvPVbyte_nolen (req->sv1);
1740 } 1213 }
1741 else 1214 else
1742 { 1215 {
1743 req->type = REQ_FUTIME; 1216 req->type = EIO_FUTIME;
1744 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1217 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1745 } 1218 }
1746 1219
1747 REQ_SEND; 1220 REQ_SEND;
1748} 1221}
… …
1754 dREQ; 1227 dREQ;
1755 1228
1756 req->sv1 = newSVsv (fh_or_path); 1229 req->sv1 = newSVsv (fh_or_path);
1757 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1230 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1758 1231
1759 if (SvPOK (fh_or_path)) 1232 if (SvPOK (req->sv1))
1760 { 1233 {
1761 req->type = REQ_TRUNCATE; 1234 req->type = EIO_TRUNCATE;
1762 req->ptr1 = SvPVbyte_nolen (req->sv1); 1235 req->ptr1 = SvPVbyte_nolen (req->sv1);
1763 } 1236 }
1764 else 1237 else
1765 { 1238 {
1766 req->type = REQ_FTRUNCATE; 1239 req->type = EIO_FTRUNCATE;
1767 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1240 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1768 } 1241 }
1769 1242
1770 REQ_SEND; 1243 REQ_SEND;
1771} 1244}
1772 1245
1773void 1246void
1774aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1247aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1248 ALIAS:
1249 aio_chmod = EIO_CHMOD
1250 aio_mkdir = EIO_MKDIR
1775 PPCODE: 1251 PPCODE:
1776{ 1252{
1777 dREQ; 1253 dREQ;
1778 1254
1779 req->mode = mode; 1255 req->int2 = mode;
1780 req->sv1 = newSVsv (fh_or_path); 1256 req->sv1 = newSVsv (fh_or_path);
1781 1257
1782 if (SvPOK (fh_or_path)) 1258 if (SvPOK (req->sv1))
1783 { 1259 {
1784 req->type = REQ_CHMOD; 1260 req->type = ix;
1785 req->ptr1 = SvPVbyte_nolen (req->sv1); 1261 req->ptr1 = SvPVbyte_nolen (req->sv1);
1786 } 1262 }
1787 else 1263 else
1788 { 1264 {
1789 req->type = REQ_FCHMOD; 1265 req->type = EIO_FCHMOD;
1790 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1266 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1791 } 1267 }
1792 1268
1793 REQ_SEND; 1269 REQ_SEND;
1794} 1270}
… …
1801 1277
1802 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1278 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1803 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1279 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1804 req->sv1 = newSVsv (fh_or_path); 1280 req->sv1 = newSVsv (fh_or_path);
1805 1281
1806 if (SvPOK (fh_or_path)) 1282 if (SvPOK (req->sv1))
1807 { 1283 {
1808 req->type = REQ_CHOWN; 1284 req->type = EIO_CHOWN;
1809 req->ptr1 = SvPVbyte_nolen (req->sv1); 1285 req->ptr1 = SvPVbyte_nolen (req->sv1);
1810 } 1286 }
1811 else 1287 else
1812 { 1288 {
1813 req->type = REQ_FCHOWN; 1289 req->type = EIO_FCHOWN;
1814 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1290 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1815 } 1291 }
1816 1292
1817 REQ_SEND; 1293 REQ_SEND;
1818} 1294}
1819 1295
1820void 1296void
1297aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1298 PPCODE:
1299{
1300 dREQ;
1301
1302 req->type = EIO_READDIR;
1303 req->sv1 = newSVsv (pathname);
1304 req->ptr1 = SvPVbyte_nolen (req->sv1);
1305 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1306
1307 if (flags & EIO_READDIR_DENTS)
1308 req->int1 |= EIO_READDIR_CUSTOM2;
1309
1310 REQ_SEND;
1311}
1312
1313void
1821aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1314aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1822 ALIAS: 1315 ALIAS:
1823 aio_unlink = REQ_UNLINK 1316 aio_unlink = EIO_UNLINK
1824 aio_rmdir = REQ_RMDIR 1317 aio_rmdir = EIO_RMDIR
1825 aio_readdir = REQ_READDIR 1318 aio_readdir = EIO_READDIR
1826 PPCODE: 1319 PPCODE:
1827{ 1320{
1828 dREQ; 1321 dREQ;
1829 1322
1830 req->type = ix; 1323 req->type = ix;
… …
1833 1326
1834 REQ_SEND; 1327 REQ_SEND;
1835} 1328}
1836 1329
1837void 1330void
1838aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1839 PPCODE:
1840{
1841 dREQ;
1842
1843 req->type = REQ_MKDIR;
1844 req->sv1 = newSVsv (pathname);
1845 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 req->mode = mode;
1847
1848 REQ_SEND;
1849}
1850
1851void
1852aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1331aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1853 ALIAS: 1332 ALIAS:
1854 aio_link = REQ_LINK 1333 aio_link = EIO_LINK
1855 aio_symlink = REQ_SYMLINK 1334 aio_symlink = EIO_SYMLINK
1856 aio_rename = REQ_RENAME 1335 aio_rename = EIO_RENAME
1857 PPCODE: 1336 PPCODE:
1858{ 1337{
1859 dREQ; 1338 dREQ;
1860 1339
1861 req->type = ix; 1340 req->type = ix;
1862 req->sv2 = newSVsv (oldpath); 1341 req->sv1 = newSVsv (oldpath);
1342 req->ptr1 = SvPVbyte_nolen (req->sv1);
1343 req->sv2 = newSVsv (newpath);
1863 req->ptr2 = SvPVbyte_nolen (req->sv2); 1344 req->ptr2 = SvPVbyte_nolen (req->sv2);
1864 req->sv1 = newSVsv (newpath);
1865 req->ptr1 = SvPVbyte_nolen (req->sv1);
1866 1345
1867 REQ_SEND; 1346 REQ_SEND;
1868} 1347}
1869 1348
1870void 1349void
1871aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1350aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1872 PPCODE: 1351 PPCODE:
1873{ 1352{
1874 dREQ; 1353 dREQ;
1875 1354
1876 req->type = REQ_MKNOD; 1355 req->type = EIO_MKNOD;
1877 req->sv1 = newSVsv (pathname); 1356 req->sv1 = newSVsv (pathname);
1878 req->ptr1 = SvPVbyte_nolen (req->sv1); 1357 req->ptr1 = SvPVbyte_nolen (req->sv1);
1879 req->mode = (mode_t)mode; 1358 req->int2 = (mode_t)mode;
1880 req->offs = dev; 1359 req->offs = dev;
1881 1360
1882 REQ_SEND; 1361 REQ_SEND;
1883} 1362}
1884 1363
1885void 1364void
1365aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1366 ALIAS:
1367 aio_mtouch = EIO_MTOUCH
1368 aio_msync = EIO_MSYNC
1369 PPCODE:
1370{
1371 STRLEN svlen;
1372 char *svptr = SvPVbyte (data, svlen);
1373 UV len = SvUV (length);
1374
1375 if (offset < 0)
1376 offset += svlen;
1377
1378 if (offset < 0 || offset > svlen)
1379 croak ("offset outside of scalar");
1380
1381 if (!SvOK (length) || len + offset > svlen)
1382 len = svlen - offset;
1383
1384 {
1385 dREQ;
1386
1387 req->type = ix;
1388 req->sv2 = SvREFCNT_inc (data);
1389 req->ptr2 = (char *)svptr + offset;
1390 req->size = len;
1391 req->int1 = flags;
1392
1393 REQ_SEND;
1394 }
1395}
1396
1397void
1398aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 STRLEN svlen;
1402 char *svptr = SvPVbyte (data, svlen);
1403 UV len = SvUV (length);
1404
1405 if (offset < 0)
1406 offset += svlen;
1407
1408 if (offset < 0 || offset > svlen)
1409 croak ("offset outside of scalar");
1410
1411 if (!SvOK (length) || len + offset > svlen)
1412 len = svlen - offset;
1413
1414 {
1415 dREQ;
1416
1417 req->type = EIO_MLOCK;
1418 req->sv2 = SvREFCNT_inc (data);
1419 req->ptr2 = (char *)svptr + offset;
1420 req->size = len;
1421
1422 REQ_SEND;
1423 }
1424}
1425
1426void
1427aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1428 PPCODE:
1429{
1430 dREQ;
1431
1432 req->type = EIO_MLOCKALL;
1433 req->int1 = flags;
1434
1435 REQ_SEND;
1436}
1437
1438void
1886aio_busy (double delay, SV *callback=&PL_sv_undef) 1439aio_busy (double delay, SV *callback=&PL_sv_undef)
1887 PPCODE: 1440 PPCODE:
1888{ 1441{
1889 dREQ; 1442 dREQ;
1890 1443
1891 req->type = REQ_BUSY; 1444 req->type = EIO_BUSY;
1892 req->nv1 = delay < 0. ? 0. : delay; 1445 req->nv1 = delay < 0. ? 0. : delay;
1893 1446
1894 REQ_SEND; 1447 REQ_SEND;
1895} 1448}
1896 1449
1897void 1450void
1898aio_group (SV *callback=&PL_sv_undef) 1451aio_group (SV *callback=&PL_sv_undef)
1899 PROTOTYPE: ;$
1900 PPCODE: 1452 PPCODE:
1901{ 1453{
1902 dREQ; 1454 dREQ;
1903 1455
1904 req->type = REQ_GROUP; 1456 req->type = EIO_GROUP;
1905 1457
1906 req_send (req); 1458 req_submit (req);
1907 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1459 XPUSHs (req_sv (req, aio_grp_stash));
1908} 1460}
1909 1461
1910void 1462void
1911aio_nop (SV *callback=&PL_sv_undef) 1463aio_nop (SV *callback=&PL_sv_undef)
1912 ALIAS: 1464 ALIAS:
1913 aio_nop = REQ_NOP 1465 aio_nop = EIO_NOP
1914 aio_sync = REQ_SYNC 1466 aio_sync = EIO_SYNC
1915 PPCODE: 1467 PPCODE:
1916{ 1468{
1917 dREQ; 1469 dREQ;
1918 1470
1919 req->type = ix; 1471 req->type = ix;
… …
1921 REQ_SEND; 1473 REQ_SEND;
1922} 1474}
1923 1475
1924int 1476int
1925aioreq_pri (int pri = 0) 1477aioreq_pri (int pri = 0)
1926 PROTOTYPE: ;$
1927 CODE: 1478 CODE:
1928 RETVAL = next_pri - PRI_BIAS; 1479 RETVAL = next_pri;
1929 if (items > 0) 1480 if (items > 0)
1930 { 1481 {
1931 if (pri < PRI_MIN) pri = PRI_MIN; 1482 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1932 if (pri > PRI_MAX) pri = PRI_MAX; 1483 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1933 next_pri = pri + PRI_BIAS; 1484 next_pri = pri;
1934 } 1485 }
1935 OUTPUT: 1486 OUTPUT:
1936 RETVAL 1487 RETVAL
1937 1488
1938void 1489void
1939aioreq_nice (int nice = 0) 1490aioreq_nice (int nice = 0)
1940 CODE: 1491 CODE:
1941 nice = next_pri - nice; 1492 nice = next_pri - nice;
1942 if (nice < PRI_MIN) nice = PRI_MIN; 1493 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1943 if (nice > PRI_MAX) nice = PRI_MAX; 1494 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1944 next_pri = nice + PRI_BIAS; 1495 next_pri = nice;
1945 1496
1946void 1497void
1947flush () 1498flush ()
1948 PROTOTYPE:
1949 CODE: 1499 CODE:
1950 while (nreqs) 1500 while (eio_nreqs ())
1951 { 1501 {
1952 poll_wait (); 1502 poll_wait ();
1953 poll_cb (); 1503 poll_cb ();
1954 } 1504 }
1955 1505
1956int 1506int
1957poll() 1507poll ()
1958 PROTOTYPE:
1959 CODE: 1508 CODE:
1960 poll_wait (); 1509 poll_wait ();
1961 RETVAL = poll_cb (); 1510 RETVAL = poll_cb ();
1962 OUTPUT: 1511 OUTPUT:
1963 RETVAL 1512 RETVAL
1964 1513
1965int 1514int
1966poll_fileno() 1515poll_fileno ()
1967 PROTOTYPE:
1968 CODE: 1516 CODE:
1969 RETVAL = respipe [0]; 1517 RETVAL = s_epipe_fd (&respipe);
1970 OUTPUT: 1518 OUTPUT:
1971 RETVAL 1519 RETVAL
1972 1520
1973int 1521int
1974poll_cb(...) 1522poll_cb (...)
1975 PROTOTYPE: 1523 PROTOTYPE:
1976 CODE: 1524 CODE:
1977 RETVAL = poll_cb (); 1525 RETVAL = poll_cb ();
1978 OUTPUT: 1526 OUTPUT:
1979 RETVAL 1527 RETVAL
1980 1528
1981void 1529void
1982poll_wait() 1530poll_wait ()
1983 PROTOTYPE:
1984 CODE: 1531 CODE:
1985 poll_wait (); 1532 poll_wait ();
1986 1533
1987void
1988setsig (int signum = SIGIO)
1989 PROTOTYPE: ;$
1990 CODE:
1991{
1992 if (block_sig_level)
1993 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1994
1995 X_LOCK (reslock);
1996 main_tid = pthread_self ();
1997 main_sig = signum;
1998 X_UNLOCK (reslock);
1999
2000 if (main_sig && npending)
2001 pthread_kill (main_tid, main_sig);
2002}
2003
2004void
2005aio_block (SV *cb)
2006 PROTOTYPE: &
2007 PPCODE:
2008{
2009 int count;
2010
2011 block_sig ();
2012 PUSHMARK (SP);
2013 PUTBACK;
2014 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
2015 unblock_sig ();
2016
2017 if (SvTRUE (ERRSV))
2018 croak (0);
2019
2020 XSRETURN (count);
2021}
2022
2023int 1534int
2024nreqs() 1535nreqs ()
2025 PROTOTYPE:
2026 CODE: 1536 CODE:
2027 RETVAL = nreqs; 1537 RETVAL = eio_nreqs ();
2028 OUTPUT: 1538 OUTPUT:
2029 RETVAL 1539 RETVAL
2030 1540
2031int 1541int
2032nready() 1542nready ()
2033 PROTOTYPE:
2034 CODE: 1543 CODE:
2035 RETVAL = get_nready (); 1544 RETVAL = eio_nready ();
2036 OUTPUT: 1545 OUTPUT:
2037 RETVAL 1546 RETVAL
2038 1547
2039int 1548int
2040npending() 1549npending ()
2041 PROTOTYPE:
2042 CODE: 1550 CODE:
2043 RETVAL = get_npending (); 1551 RETVAL = eio_npending ();
2044 OUTPUT: 1552 OUTPUT:
2045 RETVAL 1553 RETVAL
2046 1554
2047int 1555int
2048nthreads() 1556nthreads ()
2049 PROTOTYPE:
2050 CODE: 1557 CODE:
2051 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1558 RETVAL = eio_nthreads ();
2052 RETVAL = started;
2053 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2054 OUTPUT: 1559 OUTPUT:
2055 RETVAL 1560 RETVAL
2056 1561
1562int
1563fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1564 CODE:
1565 RETVAL = posix_fadvise (fh, offset, length, advice);
1566 OUTPUT:
1567 RETVAL
1568
1569ssize_t
1570sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1571 CODE:
1572 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1573 OUTPUT:
1574 RETVAL
1575
1576void
1577mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1578 PPCODE:
1579 sv_unmagic (scalar, MMAP_MAGIC);
1580{
1581 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1582 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1583 if (addr == (void *)-1)
1584 XSRETURN_NO;
1585
1586 sv_force_normal (scalar);
1587
1588 /* we store the length in mg_obj, as namlen is I32 :/ */
1589 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1590 ->mg_obj = (SV *)length;
1591
1592 SvUPGRADE (scalar, SVt_PV); /* nop... */
1593
1594 if (!(prot & PROT_WRITE))
1595 SvREADONLY_on (scalar);
1596
1597 if (SvLEN (scalar))
1598 Safefree (SvPVX (scalar));
1599
1600 SvPVX (scalar) = (char *)addr;
1601 SvCUR_set (scalar, length);
1602 SvLEN_set (scalar, 0);
1603 SvPOK_only (scalar);
1604
1605 XSRETURN_YES;
1606}
1607
1608void
1609munmap (SV *scalar)
1610 CODE:
1611 sv_unmagic (scalar, MMAP_MAGIC);
1612
1613int
1614madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1615 ALIAS:
1616 mprotect = 1
1617 CODE:
1618{
1619 STRLEN svlen;
1620 void *addr = SvPVbyte (scalar, svlen);
1621 size_t len = SvUV (length);
1622
1623 if (offset < 0)
1624 offset += svlen;
1625
1626 if (offset < 0 || offset > svlen)
1627 croak ("offset outside of scalar");
1628
1629 if (!SvOK (length) || len + offset > svlen)
1630 len = svlen - offset;
1631
1632 addr = (void *)(((intptr_t)addr) + offset);
1633 eio_page_align (&addr, &len);
1634
1635 switch (ix)
1636 {
1637 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1638 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1639 }
1640}
1641 OUTPUT:
1642 RETVAL
1643
1644int
1645munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1646 CODE:
1647{
1648 STRLEN svlen;
1649 void *addr = SvPVbyte (scalar, svlen);
1650 size_t len = SvUV (length);
1651
1652 if (offset < 0)
1653 offset += svlen;
1654
1655 if (offset < 0 || offset > svlen)
1656 croak ("offset outside of scalar");
1657
1658 if (!SvOK (length) || len + offset > svlen)
1659 len = svlen - offset;
1660
1661 addr = (void *)(((intptr_t)addr) + offset);
1662 eio_page_align (&addr, &len);
1663#if _POSIX_MEMLOCK_RANGE
1664 RETVAL = munlock (addr, len);
1665#else
1666 RETVAL = ((errno = ENOSYS), -1);
1667#endif
1668}
1669 OUTPUT:
1670 RETVAL
1671
1672int
1673munlockall ()
1674 CODE:
1675#if _POSIX_MEMLOCK
1676 munlockall ();
1677#else
1678 RETVAL = -1;
1679 errno = ENOSYS;
1680#endif
1681 OUTPUT:
1682 RETVAL
1683
1684void _on_next_submit (SV *cb)
1685 CODE:
1686 SvREFCNT_dec (on_next_submit);
1687 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1688
2057PROTOTYPES: DISABLE 1689PROTOTYPES: DISABLE
2058 1690
2059MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1691MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2060 1692
2061void 1693void
2062cancel (aio_req_ornot req) 1694cancel (aio_req_ornot req)
2063 CODE: 1695 CODE:
2064 req_cancel (req); 1696 eio_cancel (req);
2065 1697
2066void 1698void
2067cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1699cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2068 CODE: 1700 PPCODE:
1701{
1702 if (GIMME_V != G_VOID)
1703 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1704
1705 if (items > 1)
1706 {
1707 SV *cb_cv =get_cb (callback);
1708
2069 SvREFCNT_dec (req->callback); 1709 SvREFCNT_dec (req->callback);
2070 req->callback = newSVsv (callback); 1710 req->callback = SvREFCNT_inc (cb_cv);
1711 }
1712}
2071 1713
2072MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1714MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2073 1715
2074void 1716void
2075add (aio_req grp, ...) 1717add (aio_req grp, ...)
2076 PPCODE: 1718 PPCODE:
2077{ 1719{
2078 int i; 1720 int i;
2079 aio_req req;
2080
2081 if (main_sig && !block_sig_level)
2082 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2083 1721
2084 if (grp->int1 == 2) 1722 if (grp->int1 == 2)
2085 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1723 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2086 1724
2087 for (i = 1; i < items; ++i ) 1725 for (i = 1; i < items; ++i )
2088 { 1726 {
1727 aio_req req;
1728
2089 if (GIMME_V != G_VOID) 1729 if (GIMME_V != G_VOID)
2090 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1730 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2091 1731
2092 req = SvAIO_REQ (ST (i)); 1732 req = SvAIO_REQ (ST (i));
2093 1733
2094 if (req) 1734 if (req)
2095 { 1735 eio_grp_add (grp, req);
2096 ++grp->size;
2097 req->grp = grp;
2098
2099 req->grp_prev = 0;
2100 req->grp_next = grp->grp_first;
2101
2102 if (grp->grp_first)
2103 grp->grp_first->grp_prev = req;
2104
2105 grp->grp_first = req;
2106 }
2107 } 1736 }
2108} 1737}
2109 1738
2110void 1739void
2111cancel_subs (aio_req_ornot req) 1740cancel_subs (aio_req_ornot req)
… …
2120 AV *av; 1749 AV *av;
2121 1750
2122 grp->errorno = errno; 1751 grp->errorno = errno;
2123 1752
2124 av = newAV (); 1753 av = newAV ();
1754 av_extend (av, items - 1);
2125 1755
2126 for (i = 1; i < items; ++i ) 1756 for (i = 1; i < items; ++i )
2127 av_push (av, newSVsv (ST (i))); 1757 av_push (av, newSVsv (ST (i)));
2128 1758
2129 SvREFCNT_dec (grp->sv1); 1759 SvREFCNT_dec (grp->sv1);
… …
2136 grp->errorno = errorno; 1766 grp->errorno = errorno;
2137 1767
2138void 1768void
2139limit (aio_req grp, int limit) 1769limit (aio_req grp, int limit)
2140 CODE: 1770 CODE:
2141 grp->int2 = limit; 1771 eio_grp_limit (grp, limit);
2142 aio_grp_feed (grp);
2143 1772
2144void 1773void
2145feed (aio_req grp, SV *callback=&PL_sv_undef) 1774feed (aio_req grp, SV *callback=&PL_sv_undef)
2146 CODE: 1775 CODE:
2147{ 1776{
2148 SvREFCNT_dec (grp->sv2); 1777 SvREFCNT_dec (grp->sv2);
2149 grp->sv2 = newSVsv (callback); 1778 grp->sv2 = newSVsv (callback);
1779 grp->feed = aio_grp_feed;
2150 1780
2151 if (grp->int2 <= 0) 1781 if (grp->int2 <= 0)
2152 grp->int2 = 2; 1782 grp->int2 = 2;
2153 1783
2154 aio_grp_feed (grp); 1784 eio_grp_limit (grp, grp->int2);
2155} 1785}
2156 1786

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