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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.105 by root, Sun Jul 8 11:12:15 2007 UTC vs.
Revision 1.186 by root, Thu Jul 14 22:36:17 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>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
18#ifdef _WIN32 27#ifdef _WIN32
19 28
20# define SIGIO 0 29# define EIO_STRUCT_DIRENT Direntry_t
21 typedef Direntry_t X_DIRENT;
22#undef malloc 30# undef malloc
23#undef free 31# undef free
24 32
25// perl overrides all those nice win32 functions 33// perl overrides all those nice win32 functions
26# undef open 34# undef open
27# undef read 35# undef read
28# undef write 36# undef write
… …
38# undef unlink 46# undef unlink
39# undef rmdir 47# undef rmdir
40# undef rename 48# undef rename
41# undef lseek 49# undef lseek
42 50
43# define chown(a,b,c) (errno = ENOSYS, -1)
44# define fchown(a,b,c) (errno = ENOSYS, -1)
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0) 51# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1) 52# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1) 53# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 54
57#else 55#else
58 56
59# include "autoconf/config.h"
60# include <sys/time.h> 57# include <sys/time.h>
61# include <sys/select.h> 58# include <sys/select.h>
62# include <unistd.h> 59# include <unistd.h>
63# include <utime.h> 60# include <utime.h>
64# include <signal.h> 61# include <signal.h>
65 typedef struct dirent X_DIRENT; 62# define EIO_STRUCT_DIRENT struct dirent
66 63
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 64#endif
82#endif
83 65
84/* number of seconds after which idle threads exit */ 66/* perl stupidly overrides readdir and maybe others */
85#define IDLE_TIMEOUT 10 67/* with thread-unsafe versions, imagine that :( */
68#undef readdir
69#undef opendir
70#undef closedir
86 71
87/* used for struct dirent, AIX doesn't provide it */ 72#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 73
95/* use NV for 32 bit perls as it allows larger offsets */ 74/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 75#if IVSIZE >= 8
76# define VAL64 IV
97# define SvVAL64 SvIV 77# define SvVAL64 SvIV
78# define newSVval64 newSViv
98#else 79#else
80# define VAL64 NV
99# define SvVAL64 SvNV 81# define SvVAL64 SvNV
82# define newSVval64 newSVnv
100#endif 83#endif
101 84
102#define dBUF \ 85/*****************************************************************************/
103 char *aio_buf; \ 86
104 X_LOCK (wrklock); \ 87#if __GNUC__ >= 3
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 88# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_UNLOCK (wrklock); \ 89#else
107 if (!aio_buf) \ 90# define expect(expr,value) (expr)
108 return -1; 91#endif
92
93#define expect_false(expr) expect ((expr) != 0, 0)
94#define expect_true(expr) expect ((expr) != 0, 1)
95
96/*****************************************************************************/
109 97
110typedef SV SV8; /* byte-sv, used for argument-checking */ 98typedef SV SV8; /* byte-sv, used for argument-checking */
99typedef int aio_rfd; /* read file desriptor */
100typedef int aio_wfd; /* write file descriptor */
101
102static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
103
104#define EIO_REQ_MEMBERS \
105 SV *callback; \
106 SV *sv1, *sv2; \
107 STRLEN stroffset; \
108 SV *self;
109
110#define EIO_NO_WRAPPERS 1
111
112#include "libeio/config.h"
113#include "libeio/eio.h"
114
115/* Linux/others */
116#ifndef O_ASYNC
117# define O_ASYNC 0
118#endif
119#ifndef O_DIRECT
120# define O_DIRECT 0
121#endif
122#ifndef O_NOATIME
123# define O_NOATIME 0
124#endif
125
126/* POSIX */
127#ifndef O_CLOEXEC
128# define O_CLOEXEC 0
129#endif
130#ifndef O_NOFOLLOW
131# define O_NOFOLLOW 0
132#endif
133#ifndef O_NOCTTY
134# define O_NOCTTY 0
135#endif
136#ifndef O_NONBLOCK
137# define O_NONBLOCK 0
138#endif
139#ifndef O_EXEC
140# define O_EXEC 0
141#endif
142#ifndef O_SEARCH
143# define O_SEARCH 0
144#endif
145#ifndef O_DIRECTORY
146# define O_DIRECTORY 0
147#endif
148#ifndef O_DSYNC
149# define O_DSYNC 0
150#endif
151#ifndef O_RSYNC
152# define O_RSYNC 0
153#endif
154#ifndef O_SYNC
155# define O_SYNC 0
156#endif
157#ifndef O_TTY_INIT
158# define O_TTY_INIT 0
159#endif
160
161#ifndef POSIX_FADV_NORMAL
162# define POSIX_FADV_NORMAL 0
163#endif
164#ifndef POSIX_FADV_SEQUENTIAL
165# define POSIX_FADV_SEQUENTIAL 0
166#endif
167#ifndef POSIX_FADV_RANDOM
168# define POSIX_FADV_RANDOM 0
169#endif
170#ifndef POSIX_FADV_NOREUSE
171# define POSIX_FADV_NOREUSE 0
172#endif
173#ifndef POSIX_FADV_WILLNEED
174# define POSIX_FADV_WILLNEED 0
175#endif
176#ifndef POSIX_FADV_DONTNEED
177# define POSIX_FADV_DONTNEED 0
178#endif
179
180#if !HAVE_POSIX_FADVISE
181# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
182#endif
183
184#ifndef POSIX_MADV_NORMAL
185# define POSIX_MADV_NORMAL 0
186#endif
187#ifndef POSIX_MADV_SEQUENTIAL
188# define POSIX_MADV_SEQUENTIAL 0
189#endif
190#ifndef POSIX_MADV_RANDOM
191# define POSIX_MADV_RANDOM 0
192#endif
193#ifndef POSIX_MADV_WILLNEED
194# define POSIX_MADV_WILLNEED 0
195#endif
196#ifndef POSIX_MADV_DONTNEED
197# define POSIX_MADV_DONTNEED 0
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef PROT_NONE
205# define PROT_NONE 0
206#endif
207#ifndef PROT_READ
208# define PROT_READ 0
209#endif
210#ifndef PROT_WRITE
211# define PROT_READ 0
212#endif
213#ifndef PROT_EXEC
214# define PROT_EXEC 0
215#endif
216
217#ifndef ST_NODEV
218# define ST_NODEV 0
219#endif
220#ifndef ST_NOEXEC
221# define ST_NOEXEC 0
222#endif
223#ifndef ST_SYNCHRONOUS
224# define ST_SYNCHRONOUS 0
225#endif
226#ifndef ST_MANDLOCK
227# define ST_MANDLOCK 0
228#endif
229#ifndef ST_WRITE
230# define ST_WRITE 0
231#endif
232#ifndef ST_APPEND
233# define ST_APPEND 0
234#endif
235#ifndef ST_IMMUTABLE
236# define ST_IMMUTABLE 0
237#endif
238#ifndef ST_NOATIME
239# define ST_NOATIME 0
240#endif
241#ifndef ST_NODIRATIME
242# define ST_NODIRATIME 0
243#endif
244#ifndef ST_RELATIME
245# define ST_RELATIME 0
246#endif
247
248#ifndef S_IFIFO
249# define S_IFIFO 0
250#endif
251#ifndef S_IFCHR
252# define S_IFCHR 0
253#endif
254#ifndef S_IFBLK
255# define S_IFBLK 0
256#endif
257#ifndef S_IFLNK
258# define S_IFLNK 0
259#endif
260#ifndef S_IFREG
261# define S_IFREG 0
262#endif
263#ifndef S_IFDIR
264# define S_IFDIR 0
265#endif
266#ifndef S_IFWHT
267# define S_IFWHT 0
268#endif
269#ifndef S_IFSOCK
270# define S_IFSOCK 0
271#endif
272
273#ifndef MAP_ANONYMOUS
274# ifdef MAP_ANON
275# define MAP_ANONYMOUS MAP_ANON
276# else
277# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
278# endif
279#endif
280#ifndef MAP_HUGETLB
281# define MAP_HUGETLB 0
282#endif
283#ifndef MAP_LOCKED
284# define MAP_LOCKED 0
285#endif
286#ifndef MAP_NORESERVE
287# define MAP_NORESERVE 0
288#endif
289#ifndef MAP_POPULATE
290# define MAP_POPULATE 0
291#endif
292#ifndef MAP_NONBLOCK
293# define MAP_NONBLOCK 0
294#endif
295
296#ifndef makedev
297# define makedev(maj,min) (((maj) << 8) | (min))
298#endif
299#ifndef major
300# define major(dev) ((dev) >> 8)
301#endif
302#ifndef minor
303# define minor(dev) ((dev) & 0xff)
304#endif
305
306#ifndef PAGESIZE
307# define PAGESIZE sysconf (_SC_PAGESIZE)
308#endif
309
310static int req_invoke (eio_req *req);
311#define EIO_FINISH(req) req_invoke (req)
312static void req_destroy (eio_req *grp);
313#define EIO_DESTROY(req) req_destroy (req)
111 314
112enum { 315enum {
113 REQ_QUIT, 316 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 317};
129 318
130#define AIO_REQ_KLASS "IO::AIO::REQ" 319#include "libeio/eio.c"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132 320
133typedef struct aio_cb
134{
135 struct aio_cb *volatile next;
136
137 SV *callback;
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150
151 unsigned char flags;
152 unsigned char pri;
153
154 SV *self; /* the perl counterpart of this request, if any */
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
156} aio_cb;
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req; 321typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 322typedef eio_req *aio_req_ornot;
166 323
167enum { 324static SV *on_next_submit;
168 PRI_MIN = -4, 325static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 326static int max_outstanding;
170 327
171 DEFAULT_PRI = 0, 328static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 329
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 330static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 331static void req_cancel (aio_req req);
376 332
333static void want_poll (void)
334{
335 /* write a dummy byte to the pipe so fh becomes ready */
336 s_epipe_signal (&respipe);
337}
338
339static void done_poll (void)
340{
341 /* read any signals sent by the worker threads */
342 s_epipe_drain (&respipe);
343}
344
377/* must be called at most once */ 345/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 346static SV *req_sv (aio_req req, HV *stash)
379{ 347{
380 if (!req->self) 348 if (!req->self)
381 { 349 {
382 req->self = (SV *)newHV (); 350 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 351 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 352 }
385 353
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 354 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 355}
388 356
389static aio_req SvAIO_REQ (SV *sv) 357static aio_req SvAIO_REQ (SV *sv)
390{ 358{
391 MAGIC *mg; 359 MAGIC *mg;
392 360
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 361 if (!SvROK (sv)
362 || (SvSTASH (SvRV (sv)) != aio_grp_stash
363 && SvSTASH (SvRV (sv)) != aio_req_stash
364 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 365 croak ("object of class IO::AIO::REQ expected");
395 366
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 367 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 368
398 return mg ? (aio_req)mg->mg_ptr : 0; 369 return mg ? (aio_req)mg->mg_ptr : 0;
399} 370}
400 371
401static void aio_grp_feed (aio_req grp) 372static void aio_grp_feed (aio_req grp)
402{ 373{
403 block_sig (); 374 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 375 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 376 dSP;
412 377
413 ENTER; 378 ENTER;
414 SAVETMPS; 379 SAVETMPS;
415 PUSHMARK (SP); 380 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 382 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 384 SPAGAIN;
420 FREETMPS; 385 FREETMPS;
421 LEAVE; 386 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 387 }
432
433 unblock_sig ();
434} 388}
435 389
436static void aio_grp_dec (aio_req grp) 390static void req_submit (eio_req *req)
437{ 391{
438 --grp->size; 392 eio_submit (req);
439 393
440 /* call feeder, if applicable */ 394 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 395 {
446 block_sig (); 396 dSP;
397 SV *cb = sv_2mortal (on_next_submit);
447 398
448 if (!req_invoke (grp)) 399 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 400
455 req_destroy (grp); 401 PUSHMARK (SP);
456 unblock_sig (); 402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
457 } 404 }
458} 405}
459 406
460static int req_invoke (aio_req req) 407static int req_invoke (eio_req *req)
461{ 408{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 409 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 410 SvREADONLY_off (req->sv2);
466 411
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 412 if (!EIO_CANCELLED (req) && req->callback)
468 { 413 {
414 dSP;
415 static SV *sv_result_cache; /* caches the result integer SV */
416 SV *sv_result;
417
469 ENTER; 418 ENTER;
470 SAVETMPS; 419 SAVETMPS;
471 PUSHMARK (SP); 420 PUSHMARK (SP);
472 EXTEND (SP, 1); 421 EXTEND (SP, 1);
473 422
423 /* do not recreate the result IV from scratch each time */
424 if (expect_true (sv_result_cache))
425 {
426 sv_result = sv_result_cache; sv_result_cache = 0;
427 SvIV_set (sv_result, req->result);
428 SvIOK_only (sv_result);
429 }
430 else
431 {
432 sv_result = newSViv (req->result);
433 SvREADONLY_on (sv_result);
434 }
435
474 switch (req->type) 436 switch (req->type)
475 { 437 {
476 case REQ_READDIR: 438 case EIO_READDIR:
477 { 439 {
478 SV *rv = &PL_sv_undef; 440 SV *rv = &PL_sv_undef;
479 441
480 if (req->result >= 0) 442 if (req->result >= 0)
481 { 443 {
482 int i; 444 int i;
483 char *buf = req->ptr2; 445 char *names = (char *)req->ptr2;
446 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 447 AV *av = newAV ();
485 448
486 av_extend (av, req->result - 1); 449 av_extend (av, req->result - 1);
487 450
488 for (i = 0; i < req->result; ++i) 451 for (i = 0; i < req->result; ++i)
489 { 452 {
490 SV *sv = newSVpv (buf, 0); 453 if (req->int1 & EIO_READDIR_DENTS)
454 {
455 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 456
457 if (req->int1 & EIO_READDIR_CUSTOM2)
458 {
459 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
460 AV *avent = newAV ();
461
462 av_extend (avent, 2);
463
464 if (!sv_type [ent->type])
465 {
466 sv_type [ent->type] = newSViv (ent->type);
467 SvREADONLY_on (sv_type [ent->type]);
468 }
469
470 av_store (avent, 0, namesv);
471 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
472 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
473
474 av_store (av, i, newRV_noinc ((SV *)avent));
475 }
476 else
492 av_store (av, i, sv); 477 av_store (av, i, namesv);
478
479 ++ent;
480 }
481 else
482 {
483 SV *name = newSVpv (names, 0);
484 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 485 names += SvCUR (name) + 1;
486 }
494 } 487 }
495 488
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 489 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 490 }
498 491
499 PUSHs (rv); 492 PUSHs (rv);
493
494 if (req->int1 & EIO_READDIR_CUSTOM1)
495 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 496 }
501 break; 497 break;
502 498
503 case REQ_OPEN: 499 case EIO_OPEN:
504 { 500 {
505 /* convert fd to fh */ 501 /* convert fd to fh */
506 SV *fh; 502 SV *fh = &PL_sv_undef;
507 503
508 PUSHs (sv_2mortal (newSViv (req->result))); 504 if (req->result >= 0)
509 PUTBACK; 505 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 506 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 507 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
508 char sym [64];
509 int symlen;
510
511 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
512 gv_init (gv, aio_stash, sym, symlen, 0);
512 513
513 fh = POPs; 514 symlen = snprintf (
514 PUSHMARK (SP); 515 sym,
516 sizeof (sym),
517 "%s&=%d",
518 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
519 (int)req->result
520 );
521
522 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
523 fh = (SV *)gv;
524 }
525
515 XPUSHs (fh); 526 PUSHs (fh);
516 } 527 }
517 break; 528 break;
518 529
530 case EIO_STATVFS:
531 case EIO_FSTATVFS:
532 {
533 SV *rv = &PL_sv_undef;
534
535 if (req->result >= 0)
536 {
537 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
538 HV *hv = newHV ();
539
540 rv = sv_2mortal (newRV_noinc ((SV *)hv));
541
542 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
543 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
544 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
545 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
546 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
547 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
548 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
549 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
550 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
551 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
552 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
553 }
554
555 PUSHs (rv);
556 }
557
558 break;
559
519 case REQ_GROUP: 560 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 561 req->int1 = 2; /* mark group as finished */
521 562
522 if (req->sv1) 563 if (req->sv1)
523 { 564 {
524 int i; 565 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 569 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 570 PUSHs (*av_fetch (av, i, 0));
530 } 571 }
531 break; 572 break;
532 573
533 case REQ_NOP: 574 case EIO_NOP:
534 case REQ_BUSY: 575 case EIO_BUSY:
535 break; 576 break;
536 577
537 case REQ_READLINK: 578 case EIO_READLINK:
579 case EIO_REALPATH:
538 if (req->result > 0) 580 if (req->result > 0)
539 { 581 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
540 SvCUR_set (req->sv2, req->result);
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2);
543 }
544 break; 582 break;
545 583
546 case REQ_STAT: 584 case EIO_STAT:
547 case REQ_LSTAT: 585 case EIO_LSTAT:
548 case REQ_FSTAT: 586 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 587 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
550 PL_laststatval = req->result; 588 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2); 589 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 590 PUSHs (sv_result);
553 break; 591 break;
554 592
555 case REQ_READ: 593 case EIO_READ:
594 {
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 595 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 596 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 597 SvPOK_only (req->sv2);
598 SvSETMAGIC (req->sv2);
599 PUSHs (sv_result);
600 }
559 break; 601 break;
560 602
603 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
604 if (req->result > 0)
605 SvIV_set (sv_result, 0);
606 /* FALLTHROUGH */
607
561 default: 608 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 609 PUSHs (sv_result);
563 break; 610 break;
564 } 611 }
565 612
566 errno = req->errorno; 613 errno = req->errorno;
567 614
568 PUTBACK; 615 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 616 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 617 SPAGAIN;
618
619 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
620 SvREFCNT_dec (sv_result);
621 else
622 sv_result_cache = sv_result;
571 623
572 FREETMPS; 624 FREETMPS;
573 LEAVE; 625 LEAVE;
626
627 PUTBACK;
574 } 628 }
575 629
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 630 return !!SvTRUE (ERRSV);
591} 631}
592 632
593static void req_destroy (aio_req req) 633static void req_destroy (aio_req req)
594{ 634{
595 if (req->self) 635 if (req->self)
… …
600 640
601 SvREFCNT_dec (req->sv1); 641 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 642 SvREFCNT_dec (req->sv2);
603 SvREFCNT_dec (req->callback); 643 SvREFCNT_dec (req->callback);
604 644
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 645 Safefree (req);
609} 646}
610 647
611static void req_cancel_subs (aio_req grp) 648static void req_cancel_subs (aio_req grp)
612{ 649{
613 aio_req sub; 650 aio_req sub;
614 651
615 if (grp->type != REQ_GROUP) 652 if (grp->type != EIO_GROUP)
616 return; 653 return;
617 654
618 SvREFCNT_dec (grp->sv2); 655 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 656 grp->sv2 = 0;
620 657
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 658 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 659}
624 660
625static void req_cancel (aio_req req) 661static void create_respipe (void)
626{ 662{
627 req->flags |= FLAG_CANCELLED; 663 if (s_epipe_renew (&respipe))
628
629 req_cancel_subs (req);
630}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637
638static void
639create_pipe (int fd[2])
640{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe"); 664 croak ("IO::AIO: unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655} 665}
656 666
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait () 667static void poll_wait (void)
753{ 668{
754 fd_set rfd;
755
756 while (nreqs) 669 while (eio_nreqs ())
757 { 670 {
758 int size; 671 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 672
673 X_LOCK (reslock);
760 size = res_queue.size; 674 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 675 X_UNLOCK (reslock);
762 676
763 if (size) 677 if (size)
764 return; 678 return;
765 679
766 maybe_start_thread (); 680 etp_maybe_start_thread ();
767 681
768 FD_ZERO (&rfd); 682 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 683 }
773} 684}
774 685
775static int poll_cb () 686static int poll_cb (void)
776{ 687{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 688 for (;;)
790 { 689 {
791 for (;;) 690 int res = eio_poll ();
792 {
793 maybe_start_thread ();
794 691
795 X_LOCK (reslock); 692 if (res > 0)
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 {
800 --npending;
801
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (respipe_read (respipe [0], buf, 4) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 }
823 else
824 {
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0); 693 croak (0);
830 }
831 694
832 count++; 695 if (!max_outstanding || max_outstanding > eio_nreqs ())
833 } 696 return res;
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 }
848
849 if (nreqs <= max_outstanding)
850 break;
851 697
852 poll_wait (); 698 poll_wait ();
853
854 ++maxreqs;
855 } 699 }
700}
856 701
857 unblock_sig (); 702static void atfork_child (void)
858 return count; 703{
704 create_respipe ();
859} 705}
860 706
861/*****************************************************************************/ 707/*****************************************************************************/
862/* work around various missing functions */
863 708
864#if !HAVE_PREADWRITE 709#if !_POSIX_MAPPED_FILES
865# define pread aio_pread 710# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
866# define pwrite aio_pwrite 711# define munmap(addr,length) (errno = ENOSYS, -1)
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{
877 ssize_t res;
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888}
889
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
891{
892 ssize_t res;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif 712#endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041 713
1042 if (res < 0 714#if !_POSIX_MEMORY_PROTECTION
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 715# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1044#if __solaris 716# define PROT_NONE 0
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 717# define PROT_WRITE 0
718# define MAP_PRIVATE 0
719# define MAP_SHARED 0
720# define MAP_FIXED 0
1046#endif 721#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052 722
1053 res = 0; 723#define MMAP_MAGIC PERL_MAGIC_ext
1054 724
1055 while (count) 725static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1056 { 726{
1057 ssize_t cnt; 727 int old_errno = errno;
1058 728 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 729 errno = old_errno;
1060 730
1061 if (cnt <= 0) 731 mg->mg_obj = 0; /* just in case */
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066 732
1067 cnt = write (ofd, aio_buf, cnt); 733 SvREADONLY_off (sv);
1068 734
1069 if (cnt <= 0) 735 if (SvPVX (sv) != mg->mg_ptr)
1070 { 736 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074 737
1075 offset += cnt; 738 SvCUR_set (sv, 0);
1076 res += cnt; 739 SvPVX (sv) = 0;
1077 count -= cnt; 740 SvOK_off (sv);
1078 }
1079 }
1080 741
1081 return res; 742 return 0;
1082} 743}
1083 744
1084/* read a full directory */ 745static MGVTBL mmap_vtbl = {
1085static void scandir_ (aio_req req, worker *self) 746 0, 0, 0, 0, mmap_free
1086{ 747};
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144 748
1145/*****************************************************************************/ 749/*****************************************************************************/
1146 750
1147X_THREAD_PROC (aio_proc) 751static SV * get_cb (SV *cb_sv)
1148{ 752{
1149 {//D 753 SvGETMAGIC (cb_sv);
1150 aio_req req; 754 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 respipe_close (respipe [0]);
1376 respipe_close (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381} 755}
1382 756
1383#define dREQ \ 757#define dREQ \
758 SV *cb_cv; \
1384 aio_req req; \ 759 aio_req req; \
1385 int req_pri = next_pri; \ 760 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \ 761 next_pri = EIO_PRI_DEFAULT; \
1387 \ 762 \
1388 if (SvOK (callback) && !SvROK (callback)) \ 763 cb_cv = get_cb (callback); \
1389 croak ("callback must be undef or of reference type"); \
1390 \ 764 \
1391 Newz (0, req, 1, aio_cb); \ 765 Newz (0, req, 1, eio_req); \
1392 if (!req) \ 766 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \ 767 croak ("out of memory during eio_req allocation"); \
1394 \ 768 \
1395 req->callback = newSVsv (callback); \ 769 req->callback = SvREFCNT_inc (cb_cv); \
1396 req->pri = req_pri 770 req->pri = req_pri
1397 771
1398#define REQ_SEND \ 772#define REQ_SEND \
773 PUTBACK; \
1399 req_send (req); \ 774 req_submit (req); \
775 SPAGAIN; \
1400 \ 776 \
1401 if (GIMME_V != G_VOID) \ 777 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 778 XPUSHs (req_sv (req, aio_req_stash));
1403 779
1404MODULE = IO::AIO PACKAGE = IO::AIO 780MODULE = IO::AIO PACKAGE = IO::AIO
1405 781
1406PROTOTYPES: ENABLE 782PROTOTYPES: ENABLE
1407 783
1408BOOT: 784BOOT:
1409{ 785{
786 static const struct {
787 const char *name;
788 IV iv;
789 } *civ, const_iv[] = {
790# define const_niv(name, value) { # name, (IV) value },
791# define const_iv(name) { # name, (IV) name },
792# define const_eio(name) { # name, (IV) EIO_ ## name },
793 const_iv (EXDEV)
794 const_iv (ENOSYS)
795 const_iv (O_RDONLY)
796 const_iv (O_WRONLY)
797 const_iv (O_RDWR)
798 const_iv (O_CREAT)
799 const_iv (O_TRUNC)
800 const_iv (O_EXCL)
801 const_iv (O_APPEND)
802
803 const_iv (O_ASYNC)
804 const_iv (O_DIRECT)
805 const_iv (O_NOATIME)
806
807 const_iv (O_CLOEXEC)
808 const_iv (O_NOCTTY)
809 const_iv (O_NOFOLLOW)
810 const_iv (O_NONBLOCK)
811 const_iv (O_EXEC)
812 const_iv (O_SEARCH)
813 const_iv (O_DIRECTORY)
814 const_iv (O_DSYNC)
815 const_iv (O_RSYNC)
816 const_iv (O_SYNC)
817 const_iv (O_TTY_INIT)
818
819 const_iv (S_IFIFO)
820 const_iv (S_IFCHR)
821 const_iv (S_IFBLK)
822 const_iv (S_IFLNK)
823 const_iv (S_IFREG)
824 const_iv (S_IFDIR)
825 const_iv (S_IFWHT)
826 const_iv (S_IFSOCK)
827 const_iv (S_IFMT)
828
829 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
830 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
831 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
832 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
833 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
834 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
835
836 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
837 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
838 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
839 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
840 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
841
842 const_iv (ST_RDONLY)
843 const_iv (ST_NOSUID)
844 const_iv (ST_NODEV)
845 const_iv (ST_NOEXEC)
846 const_iv (ST_SYNCHRONOUS)
847 const_iv (ST_MANDLOCK)
848 const_iv (ST_WRITE)
849 const_iv (ST_APPEND)
850 const_iv (ST_IMMUTABLE)
851 const_iv (ST_NOATIME)
852 const_iv (ST_NODIRATIME)
853 const_iv (ST_RELATIME)
854
855 const_iv (PROT_NONE)
856 const_iv (PROT_EXEC)
857 const_iv (PROT_READ)
858 const_iv (PROT_WRITE)
859
860 /*const_iv (MAP_FIXED)*/
861 const_iv (MAP_PRIVATE)
862 const_iv (MAP_SHARED)
863 const_iv (MAP_ANONYMOUS)
864
865 /* linuxish */
866 const_iv (MAP_HUGETLB)
867 const_iv (MAP_LOCKED)
868 const_iv (MAP_NORESERVE)
869 const_iv (MAP_POPULATE)
870 const_iv (MAP_NONBLOCK)
871
872 const_eio (MCL_FUTURE)
873 const_eio (MCL_CURRENT)
874
875 const_eio (MS_ASYNC)
876 const_eio (MS_INVALIDATE)
877 const_eio (MS_SYNC)
878
879 const_eio (MT_MODIFY)
880
881 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
882 const_eio (SYNC_FILE_RANGE_WRITE)
883 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
884
885 const_eio (FALLOC_FL_KEEP_SIZE)
886
887 const_eio (READDIR_DENTS)
888 const_eio (READDIR_DIRS_FIRST)
889 const_eio (READDIR_STAT_ORDER)
890 const_eio (READDIR_FOUND_UNKNOWN)
891
892 const_eio (DT_UNKNOWN)
893 const_eio (DT_FIFO)
894 const_eio (DT_CHR)
895 const_eio (DT_DIR)
896 const_eio (DT_BLK)
897 const_eio (DT_REG)
898 const_eio (DT_LNK)
899 const_eio (DT_SOCK)
900 const_eio (DT_WHT)
901 };
902
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 903 aio_stash = gv_stashpv ("IO::AIO" , 1);
904 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
905 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1411 906
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 907 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 908 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 909
1425 X_COND_CHECK (reqwait); 910 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 911
1431 create_pipe (respipe); 912 create_respipe ();
1432 913
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 914 if (eio_init (want_poll, done_poll) < 0)
1434} 915 croak ("IO::AIO: unable to initialise eio library");
1435 916
917 /* atfork child called in fifo order, so before eio's handler */
918 X_THREAD_ATFORK (0, 0, atfork_child);
919}
920
1436void 921void
1437max_poll_reqs (int nreqs) 922max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 923 PROTOTYPE: $
1439 CODE: 924 CODE:
1440 max_poll_reqs = nreqs; 925 eio_set_max_poll_reqs (nreqs);
1441 926
1442void 927void
1443max_poll_time (double nseconds) 928max_poll_time (double nseconds)
1444 PROTOTYPE: $ 929 PROTOTYPE: $
1445 CODE: 930 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 931 eio_set_max_poll_time (nseconds);
1447 932
1448void 933void
1449min_parallel (int nthreads) 934min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 935 PROTOTYPE: $
1459 CODE: 936 CODE:
1460 set_max_idle (nthreads); 937 eio_set_min_parallel (nthreads);
1461 938
1462int 939void
1463max_outstanding (int maxreqs) 940max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 941 PROTOTYPE: $
1465 CODE: 942 CODE:
1466 RETVAL = max_outstanding; 943 eio_set_max_parallel (nthreads);
944
945void
946max_idle (unsigned int nthreads)
947 PROTOTYPE: $
948 CODE:
949 eio_set_max_idle (nthreads);
950
951void
952idle_timeout (unsigned int seconds)
953 PROTOTYPE: $
954 CODE:
955 eio_set_idle_timeout (seconds);
956
957void
958max_outstanding (unsigned int maxreqs)
959 PROTOTYPE: $
960 CODE:
1467 max_outstanding = maxreqs; 961 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 962
1471void 963void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 964aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 965 PPCODE:
1475{ 966{
1476 dREQ; 967 dREQ;
1477 968
1478 req->type = REQ_OPEN; 969 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 970 req->sv1 = newSVsv (pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1); 971 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 972 req->int1 = flags;
1482 req->mode = mode; 973 req->int2 = mode;
1483 974
1484 REQ_SEND; 975 REQ_SEND;
1485} 976}
1486 977
1487void 978void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 979aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 980 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 981 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 982 aio_fdatasync = EIO_FDATASYNC
1494 PPCODE: 983 PPCODE:
1495{ 984{
985 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 986 dREQ;
1497 987
1498 req->type = ix; 988 req->type = ix;
1499 req->sv1 = newSVsv (fh); 989 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 990 req->int1 = fd;
991
992 REQ_SEND (req);
993}
994
995void
996aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
997 PPCODE:
998{
999 int fd = s_fileno_croak (fh, 0);
1000 dREQ;
1001
1002 req->type = EIO_SYNC_FILE_RANGE;
1003 req->sv1 = newSVsv (fh);
1004 req->int1 = fd;
1005 req->offs = offset;
1006 req->size = nbytes;
1007 req->int2 = flags;
1008
1009 REQ_SEND (req);
1010}
1011
1012void
1013aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1014 PPCODE:
1015{
1016 int fd = s_fileno_croak (fh, 0);
1017 dREQ;
1018
1019 req->type = EIO_FALLOCATE;
1020 req->sv1 = newSVsv (fh);
1021 req->int1 = fd;
1022 req->int2 = mode;
1023 req->offs = offset;
1024 req->size = len;
1025
1026 REQ_SEND (req);
1027}
1028
1029void
1030aio_close (SV *fh, SV *callback=&PL_sv_undef)
1031 PPCODE:
1032{
1033 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1034 int fd = s_fileno_croak (fh, 0);
1035 dREQ;
1036
1037 if (close_pipe < 0)
1038 {
1039 int pipefd [2];
1040
1041 if (pipe (pipefd) < 0
1042 || close (pipefd [1]) < 0
1043 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1044 abort (); /*D*/
1045
1046 close_pipe = pipefd [0];
1047 }
1048
1049 req->type = EIO_DUP2;
1050 req->int1 = close_pipe;
1051 req->sv2 = newSVsv (fh);
1052 req->int2 = fd;
1501 1053
1502 REQ_SEND (req); 1054 REQ_SEND (req);
1503} 1055}
1504 1056
1505void 1057void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1058aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1059 ALIAS:
1508 aio_read = REQ_READ 1060 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1061 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1062 PPCODE:
1512{ 1063{
1513 STRLEN svlen; 1064 STRLEN svlen;
1065 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1066 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1067 UV len = SvUV (length);
1516 1068
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1069 if (dataoffset < 0)
1521 dataoffset += svlen; 1070 dataoffset += svlen;
1522 1071
1523 if (dataoffset < 0 || dataoffset > svlen) 1072 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1073 croak ("dataoffset outside of data scalar");
1525 1074
1526 if (ix == REQ_WRITE) 1075 if (ix == EIO_WRITE)
1527 { 1076 {
1528 /* write: check length and adjust. */ 1077 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1078 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1079 len = svlen - dataoffset;
1531 } 1080 }
1532 else 1081 else
1533 { 1082 {
1534 /* read: grow scalar as necessary */ 1083 /* read: check type and grow scalar as necessary */
1084 SvUPGRADE (data, SVt_PV);
1535 svptr = SvGROW (data, len + dataoffset + 1); 1085 svptr = SvGROW (data, len + dataoffset + 1);
1536 } 1086 }
1537 1087
1538 if (len < 0)
1539 croak ("length must not be negative");
1540
1541 { 1088 {
1542 dREQ; 1089 dREQ;
1543 1090
1544 req->type = ix; 1091 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1092 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1093 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1094 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1095 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1096 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1097 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1098 req->stroffset = dataoffset;
1553 1099
1554 if (!SvREADONLY (data)) 1100 if (!SvREADONLY (data))
1555 { 1101 {
1556 SvREADONLY_on (data); 1102 SvREADONLY_on (data);
… …
1561 } 1107 }
1562} 1108}
1563 1109
1564void 1110void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1111aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1112 ALIAS:
1113 aio_readlink = EIO_READLINK
1114 aio_realpath = EIO_REALPATH
1567 PPCODE: 1115 PPCODE:
1568{ 1116{
1569 SV *data; 1117 SV *data;
1570 dREQ; 1118 dREQ;
1571 1119
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1120 req->type = ix;
1576 req->sv1 = newSVsv (path); 1121 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1); 1122 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1123
1581 REQ_SEND; 1124 REQ_SEND;
1582} 1125}
1583 1126
1584void 1127void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1128aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1129 PPCODE:
1588{ 1130{
1131 int ifd = s_fileno_croak (in_fh , 0);
1132 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1133 dREQ;
1590 1134
1591 req->type = REQ_SENDFILE; 1135 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1136 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1137 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1138 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1139 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1140 req->offs = in_offset;
1597 req->size = length; 1141 req->size = length;
1598 1142
1599 REQ_SEND; 1143 REQ_SEND;
1600} 1144}
1601 1145
1602void 1146void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1147aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1148 PPCODE:
1606{ 1149{
1150 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1151 dREQ;
1608 1152
1609 req->type = REQ_READAHEAD; 1153 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1154 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1155 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1156 req->offs = offset;
1613 req->size = length; 1157 req->size = length;
1614 1158
1615 REQ_SEND; 1159 REQ_SEND;
1616} 1160}
1617 1161
1618void 1162void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1163aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1164 ALIAS:
1621 aio_stat = REQ_STAT 1165 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1166 aio_lstat = EIO_LSTAT
1167 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1168 PPCODE:
1624{ 1169{
1625 dREQ; 1170 dREQ;
1626 1171
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path); 1172 req->sv1 = newSVsv (fh_or_path);
1636 1173
1637 if (SvPOK (fh_or_path)) 1174 if (SvPOK (req->sv1))
1638 { 1175 {
1639 req->type = ix; 1176 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1); 1177 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1178 }
1642 else 1179 else
1643 { 1180 {
1644 req->type = REQ_FSTAT; 1181 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1182 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 } 1183 }
1647 1184
1648 REQ_SEND; 1185 REQ_SEND;
1649} 1186}
1187
1188UV
1189major (UV dev)
1190 ALIAS:
1191 minor = 1
1192 CODE:
1193 RETVAL = ix ? major (dev) : minor (dev);
1194 OUTPUT:
1195 RETVAL
1196
1197UV
1198makedev (UV maj, UV min)
1199 CODE:
1200 RETVAL = makedev (maj, min);
1201 OUTPUT:
1202 RETVAL
1650 1203
1651void 1204void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1205aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1206 PPCODE:
1654{ 1207{
… …
1656 1209
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1210 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1211 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1212 req->sv1 = newSVsv (fh_or_path);
1660 1213
1661 if (SvPOK (fh_or_path)) 1214 if (SvPOK (req->sv1))
1662 { 1215 {
1663 req->type = REQ_UTIME; 1216 req->type = EIO_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1); 1217 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 } 1218 }
1666 else 1219 else
1667 { 1220 {
1668 req->type = REQ_FUTIME; 1221 req->type = EIO_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1222 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 } 1223 }
1671 1224
1672 REQ_SEND; 1225 REQ_SEND;
1673} 1226}
… …
1679 dREQ; 1232 dREQ;
1680 1233
1681 req->sv1 = newSVsv (fh_or_path); 1234 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1235 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1236
1684 if (SvPOK (fh_or_path)) 1237 if (SvPOK (req->sv1))
1685 { 1238 {
1686 req->type = REQ_TRUNCATE; 1239 req->type = EIO_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1); 1240 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 } 1241 }
1689 else 1242 else
1690 { 1243 {
1691 req->type = REQ_FTRUNCATE; 1244 req->type = EIO_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1245 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 } 1246 }
1694 1247
1695 REQ_SEND; 1248 REQ_SEND;
1696} 1249}
1697 1250
1698void 1251void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1252aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1253 ALIAS:
1254 aio_chmod = EIO_CHMOD
1255 aio_mkdir = EIO_MKDIR
1700 PPCODE: 1256 PPCODE:
1701{ 1257{
1702 dREQ; 1258 dREQ;
1703 1259
1704 req->mode = mode; 1260 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1261 req->sv1 = newSVsv (fh_or_path);
1706 1262
1707 if (SvPOK (fh_or_path)) 1263 if (SvPOK (req->sv1))
1708 { 1264 {
1709 req->type = REQ_CHMOD; 1265 req->type = ix;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1); 1266 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 } 1267 }
1712 else 1268 else
1713 { 1269 {
1714 req->type = REQ_FCHMOD; 1270 req->type = EIO_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1271 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 } 1272 }
1717 1273
1718 REQ_SEND; 1274 REQ_SEND;
1719} 1275}
… …
1726 1282
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1283 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1284 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1285 req->sv1 = newSVsv (fh_or_path);
1730 1286
1731 if (SvPOK (fh_or_path)) 1287 if (SvPOK (req->sv1))
1732 { 1288 {
1733 req->type = REQ_CHOWN; 1289 req->type = EIO_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1290 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 } 1291 }
1736 else 1292 else
1737 { 1293 {
1738 req->type = REQ_FCHOWN; 1294 req->type = EIO_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1295 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 } 1296 }
1741 1297
1742 REQ_SEND; 1298 REQ_SEND;
1743} 1299}
1744 1300
1745void 1301void
1302aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1303 PPCODE:
1304{
1305 dREQ;
1306
1307 req->type = EIO_READDIR;
1308 req->sv1 = newSVsv (pathname);
1309 req->ptr1 = SvPVbyte_nolen (req->sv1);
1310 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1311
1312 if (flags & EIO_READDIR_DENTS)
1313 req->int1 |= EIO_READDIR_CUSTOM2;
1314
1315 REQ_SEND;
1316}
1317
1318void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1319aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1320 ALIAS:
1748 aio_unlink = REQ_UNLINK 1321 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1322 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1323 aio_readdir = EIO_READDIR
1751 PPCODE: 1324 PPCODE:
1752{ 1325{
1753 dREQ; 1326 dREQ;
1754 1327
1755 req->type = ix; 1328 req->type = ix;
… …
1758 1331
1759 REQ_SEND; 1332 REQ_SEND;
1760} 1333}
1761 1334
1762void 1335void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1336aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS: 1337 ALIAS:
1779 aio_link = REQ_LINK 1338 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1339 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1340 aio_rename = EIO_RENAME
1782 PPCODE: 1341 PPCODE:
1783{ 1342{
1784 dREQ; 1343 dREQ;
1785 1344
1786 req->type = ix; 1345 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1346 req->sv1 = newSVsv (oldpath);
1347 req->ptr1 = SvPVbyte_nolen (req->sv1);
1348 req->sv2 = newSVsv (newpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1349 req->ptr2 = SvPVbyte_nolen (req->sv2);
1789 req->sv1 = newSVsv (newpath);
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1350
1792 REQ_SEND; 1351 REQ_SEND;
1793} 1352}
1794 1353
1795void 1354void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1355aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE: 1356 PPCODE:
1798{ 1357{
1799 dREQ; 1358 dREQ;
1800 1359
1801 req->type = REQ_MKNOD; 1360 req->type = EIO_MKNOD;
1802 req->sv1 = newSVsv (pathname); 1361 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1362 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 1363 req->int2 = (mode_t)mode;
1805 req->offs = dev; 1364 req->offs = dev;
1806 1365
1807 REQ_SEND; 1366 REQ_SEND;
1808} 1367}
1809 1368
1810void 1369void
1370aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1371 ALIAS:
1372 aio_mtouch = EIO_MTOUCH
1373 aio_msync = EIO_MSYNC
1374 PPCODE:
1375{
1376 STRLEN svlen;
1377 char *svptr = SvPVbyte (data, svlen);
1378 UV len = SvUV (length);
1379
1380 if (offset < 0)
1381 offset += svlen;
1382
1383 if (offset < 0 || offset > svlen)
1384 croak ("offset outside of scalar");
1385
1386 if (!SvOK (length) || len + offset > svlen)
1387 len = svlen - offset;
1388
1389 {
1390 dREQ;
1391
1392 req->type = ix;
1393 req->sv2 = SvREFCNT_inc (data);
1394 req->ptr2 = (char *)svptr + offset;
1395 req->size = len;
1396 req->int1 = flags;
1397
1398 REQ_SEND;
1399 }
1400}
1401
1402void
1403aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1404 PPCODE:
1405{
1406 STRLEN svlen;
1407 char *svptr = SvPVbyte (data, svlen);
1408 UV len = SvUV (length);
1409
1410 if (offset < 0)
1411 offset += svlen;
1412
1413 if (offset < 0 || offset > svlen)
1414 croak ("offset outside of scalar");
1415
1416 if (!SvOK (length) || len + offset > svlen)
1417 len = svlen - offset;
1418
1419 {
1420 dREQ;
1421
1422 req->type = EIO_MLOCK;
1423 req->sv2 = SvREFCNT_inc (data);
1424 req->ptr2 = (char *)svptr + offset;
1425 req->size = len;
1426
1427 REQ_SEND;
1428 }
1429}
1430
1431void
1432aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1433 PPCODE:
1434{
1435 dREQ;
1436
1437 req->type = EIO_MLOCKALL;
1438 req->int1 = flags;
1439
1440 REQ_SEND;
1441}
1442
1443void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1444aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 1445 PPCODE:
1813{ 1446{
1814 dREQ; 1447 dREQ;
1815 1448
1816 req->type = REQ_BUSY; 1449 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1450 req->nv1 = delay < 0. ? 0. : delay;
1818 1451
1819 REQ_SEND; 1452 REQ_SEND;
1820} 1453}
1821 1454
1822void 1455void
1823aio_group (SV *callback=&PL_sv_undef) 1456aio_group (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1457 PPCODE:
1826{ 1458{
1827 dREQ; 1459 dREQ;
1828 1460
1829 req->type = REQ_GROUP; 1461 req->type = EIO_GROUP;
1830 1462
1831 req_send (req); 1463 req_submit (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1464 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1465}
1834 1466
1835void 1467void
1836aio_nop (SV *callback=&PL_sv_undef) 1468aio_nop (SV *callback=&PL_sv_undef)
1469 ALIAS:
1470 aio_nop = EIO_NOP
1471 aio_sync = EIO_SYNC
1837 PPCODE: 1472 PPCODE:
1838{ 1473{
1839 dREQ; 1474 dREQ;
1840 1475
1841 req->type = REQ_NOP; 1476 req->type = ix;
1842 1477
1843 REQ_SEND; 1478 REQ_SEND;
1844} 1479}
1845 1480
1846int 1481int
1847aioreq_pri (int pri = 0) 1482aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1483 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1484 RETVAL = next_pri;
1851 if (items > 0) 1485 if (items > 0)
1852 { 1486 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1487 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1488 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1489 next_pri = pri;
1856 } 1490 }
1857 OUTPUT: 1491 OUTPUT:
1858 RETVAL 1492 RETVAL
1859 1493
1860void 1494void
1861aioreq_nice (int nice = 0) 1495aioreq_nice (int nice = 0)
1862 CODE: 1496 CODE:
1863 nice = next_pri - nice; 1497 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1498 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1499 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1500 next_pri = nice;
1867 1501
1868void 1502void
1869flush () 1503flush ()
1870 PROTOTYPE:
1871 CODE: 1504 CODE:
1872 while (nreqs) 1505 while (eio_nreqs ())
1873 { 1506 {
1874 poll_wait (); 1507 poll_wait ();
1875 poll_cb (); 1508 poll_cb ();
1876 } 1509 }
1877 1510
1878int 1511int
1879poll() 1512poll ()
1880 PROTOTYPE:
1881 CODE: 1513 CODE:
1882 poll_wait (); 1514 poll_wait ();
1883 RETVAL = poll_cb (); 1515 RETVAL = poll_cb ();
1884 OUTPUT: 1516 OUTPUT:
1885 RETVAL 1517 RETVAL
1886 1518
1887int 1519int
1888poll_fileno() 1520poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1521 CODE:
1891 RETVAL = respipe [0]; 1522 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1523 OUTPUT:
1893 RETVAL 1524 RETVAL
1894 1525
1895int 1526int
1896poll_cb(...) 1527poll_cb (...)
1897 PROTOTYPE: 1528 PROTOTYPE:
1898 CODE: 1529 CODE:
1899 RETVAL = poll_cb (); 1530 RETVAL = poll_cb ();
1900 OUTPUT: 1531 OUTPUT:
1901 RETVAL 1532 RETVAL
1902 1533
1903void 1534void
1904poll_wait() 1535poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1536 CODE:
1907 poll_wait (); 1537 poll_wait ();
1908 1538
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1539int
1947nreqs() 1540nreqs ()
1948 PROTOTYPE:
1949 CODE: 1541 CODE:
1950 RETVAL = nreqs; 1542 RETVAL = eio_nreqs ();
1951 OUTPUT: 1543 OUTPUT:
1952 RETVAL 1544 RETVAL
1953 1545
1954int 1546int
1955nready() 1547nready ()
1956 PROTOTYPE:
1957 CODE: 1548 CODE:
1958 RETVAL = get_nready (); 1549 RETVAL = eio_nready ();
1959 OUTPUT: 1550 OUTPUT:
1960 RETVAL 1551 RETVAL
1961 1552
1962int 1553int
1963npending() 1554npending ()
1964 PROTOTYPE:
1965 CODE: 1555 CODE:
1966 RETVAL = get_npending (); 1556 RETVAL = eio_npending ();
1967 OUTPUT: 1557 OUTPUT:
1968 RETVAL 1558 RETVAL
1969 1559
1970int 1560int
1971nthreads() 1561nthreads ()
1972 PROTOTYPE:
1973 CODE: 1562 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1563 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1564 OUTPUT:
1978 RETVAL 1565 RETVAL
1979 1566
1567int
1568fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1569 CODE:
1570 RETVAL = posix_fadvise (fh, offset, length, advice);
1571 OUTPUT:
1572 RETVAL
1573
1574ssize_t
1575sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1576 CODE:
1577 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1578 OUTPUT:
1579 RETVAL
1580
1581void
1582mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1583 PPCODE:
1584 sv_unmagic (scalar, MMAP_MAGIC);
1585{
1586 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1587 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1588 if (addr == (void *)-1)
1589 XSRETURN_NO;
1590
1591 sv_force_normal (scalar);
1592
1593 /* we store the length in mg_obj, as namlen is I32 :/ */
1594 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1595 ->mg_obj = (SV *)length;
1596
1597 SvUPGRADE (scalar, SVt_PV); /* nop... */
1598
1599 if (!(prot & PROT_WRITE))
1600 SvREADONLY_on (scalar);
1601
1602 if (SvLEN (scalar))
1603 Safefree (SvPVX (scalar));
1604
1605 SvPVX (scalar) = (char *)addr;
1606 SvCUR_set (scalar, length);
1607 SvLEN_set (scalar, 0);
1608 SvPOK_only (scalar);
1609
1610 XSRETURN_YES;
1611}
1612
1613void
1614munmap (SV *scalar)
1615 CODE:
1616 sv_unmagic (scalar, MMAP_MAGIC);
1617
1618int
1619madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1620 ALIAS:
1621 mprotect = 1
1622 CODE:
1623{
1624 STRLEN svlen;
1625 void *addr = SvPVbyte (scalar, svlen);
1626 size_t len = SvUV (length);
1627
1628 if (offset < 0)
1629 offset += svlen;
1630
1631 if (offset < 0 || offset > svlen)
1632 croak ("offset outside of scalar");
1633
1634 if (!SvOK (length) || len + offset > svlen)
1635 len = svlen - offset;
1636
1637 addr = (void *)(((intptr_t)addr) + offset);
1638 eio_page_align (&addr, &len);
1639
1640 switch (ix)
1641 {
1642 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1643 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1644 }
1645}
1646 OUTPUT:
1647 RETVAL
1648
1649int
1650munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1651 CODE:
1652{
1653 STRLEN svlen;
1654 void *addr = SvPVbyte (scalar, svlen);
1655 size_t len = SvUV (length);
1656
1657 if (offset < 0)
1658 offset += svlen;
1659
1660 if (offset < 0 || offset > svlen)
1661 croak ("offset outside of scalar");
1662
1663 if (!SvOK (length) || len + offset > svlen)
1664 len = svlen - offset;
1665
1666 addr = (void *)(((intptr_t)addr) + offset);
1667 eio_page_align (&addr, &len);
1668#if _POSIX_MEMLOCK_RANGE
1669 RETVAL = munlock (addr, len);
1670#else
1671 RETVAL = ((errno = ENOSYS), -1);
1672#endif
1673}
1674 OUTPUT:
1675 RETVAL
1676
1677int
1678munlockall ()
1679 CODE:
1680#if _POSIX_MEMLOCK
1681 munlockall ();
1682#else
1683 RETVAL = -1;
1684 errno = ENOSYS;
1685#endif
1686 OUTPUT:
1687 RETVAL
1688
1689void _on_next_submit (SV *cb)
1690 CODE:
1691 SvREFCNT_dec (on_next_submit);
1692 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1693
1980PROTOTYPES: DISABLE 1694PROTOTYPES: DISABLE
1981 1695
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1696MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1697
1984void 1698void
1985cancel (aio_req_ornot req) 1699cancel (aio_req_ornot req)
1986 CODE: 1700 CODE:
1987 req_cancel (req); 1701 eio_cancel (req);
1988 1702
1989void 1703void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1704cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1705 PPCODE:
1706{
1707 if (GIMME_V != G_VOID)
1708 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1709
1710 if (items > 1)
1711 {
1712 SV *cb_cv =get_cb (callback);
1713
1992 SvREFCNT_dec (req->callback); 1714 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1715 req->callback = SvREFCNT_inc (cb_cv);
1716 }
1717}
1994 1718
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1719MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1720
1997void 1721void
1998add (aio_req grp, ...) 1722add (aio_req grp, ...)
1999 PPCODE: 1723 PPCODE:
2000{ 1724{
2001 int i; 1725 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1726
2007 if (grp->int1 == 2) 1727 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1728 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1729
2010 for (i = 1; i < items; ++i ) 1730 for (i = 1; i < items; ++i )
2011 { 1731 {
1732 aio_req req;
1733
2012 if (GIMME_V != G_VOID) 1734 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1735 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1736
2015 req = SvAIO_REQ (ST (i)); 1737 req = SvAIO_REQ (ST (i));
2016 1738
2017 if (req) 1739 if (req)
2018 { 1740 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1741 }
2031} 1742}
2032 1743
2033void 1744void
2034cancel_subs (aio_req_ornot req) 1745cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1754 AV *av;
2044 1755
2045 grp->errorno = errno; 1756 grp->errorno = errno;
2046 1757
2047 av = newAV (); 1758 av = newAV ();
1759 av_extend (av, items - 1);
2048 1760
2049 for (i = 1; i < items; ++i ) 1761 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1762 av_push (av, newSVsv (ST (i)));
2051 1763
2052 SvREFCNT_dec (grp->sv1); 1764 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1771 grp->errorno = errorno;
2060 1772
2061void 1773void
2062limit (aio_req grp, int limit) 1774limit (aio_req grp, int limit)
2063 CODE: 1775 CODE:
2064 grp->int2 = limit; 1776 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1777
2067void 1778void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1779feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1780 CODE:
2070{ 1781{
2071 SvREFCNT_dec (grp->sv2); 1782 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1783 grp->sv2 = newSVsv (callback);
1784 grp->feed = aio_grp_feed;
2073 1785
2074 if (grp->int2 <= 0) 1786 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1787 grp->int2 = 2;
2076 1788
2077 aio_grp_feed (grp); 1789 eio_grp_limit (grp, grp->int2);
2078} 1790}
2079 1791

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