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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.110 by root, Sun Dec 2 20:54:33 2007 UTC vs.
Revision 1.187 by root, Sat Jul 16 16:46:10 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
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
18#ifdef _WIN32 33#ifdef _WIN32
19 34
20# define SIGIO 0 35# define EIO_STRUCT_DIRENT Direntry_t
21 typedef Direntry_t X_DIRENT;
22#undef malloc 36# undef malloc
23#undef free 37# undef free
24 38
25// perl overrides all those nice win32 functions 39// perl overrides all those nice win32 functions
26# undef open 40# undef open
27# undef read 41# undef read
28# undef write 42# undef write
29# undef send 43# undef send
30# undef recv 44# undef recv
31# undef stat 45# undef lstat
32# undef fstat
33# define lstat stat
34# undef truncate 46# undef truncate
35# undef ftruncate 47# undef ftruncate
36# undef open 48# undef open
49# undef link
37# undef close 50# undef close
38# undef unlink 51# undef unlink
52# undef mkdir
39# undef rmdir 53# undef rmdir
40# undef rename 54# undef rename
41# undef lseek 55# undef lseek
56# undef opendir
57# undef readdir
58# undef closedir
59# undef chmod
60# undef fchmod
42 61
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) 62# define opendir(fd) EIO_ERRNO (ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1) 63# define readdir(fd) EIO_ENOSYS ()
54# define closedir(fd) (errno = ENOSYS, -1) 64# define closedir(fd) EIO_ENOSYS ()
55# 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;
66 73
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 74#endif
82#endif
83 75
84/* number of seconds after which idle threads exit */ 76#define EIO_STRUCT_STAT Stat_t
85#define IDLE_TIMEOUT 10
86
87/* used for struct dirent, AIX doesn't provide it */
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 77
95/* use NV for 32 bit perls as it allows larger offsets */ 78/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 79#if IVSIZE >= 8
80# define VAL64 IV
97# define SvVAL64 SvIV 81# define SvVAL64 SvIV
82# define newSVval64 newSViv
98#else 83#else
84# define VAL64 NV
99# define SvVAL64 SvNV 85# define SvVAL64 SvNV
86# define newSVval64 newSVnv
100#endif 87#endif
101 88
102static HV *stash; 89/*****************************************************************************/
103 90
104#define dBUF \ 91#if __GNUC__ >= 3
105 char *aio_buf; \ 92# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_LOCK (wrklock); \ 93#else
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 94# define expect(expr,value) (expr)
108 X_UNLOCK (wrklock); \ 95#endif
109 if (!aio_buf) \ 96
110 return -1; 97#define expect_false(expr) expect ((expr) != 0, 0)
98#define expect_true(expr) expect ((expr) != 0, 1)
99
100/*****************************************************************************/
111 101
112typedef SV SV8; /* byte-sv, used for argument-checking */ 102typedef SV SV8; /* byte-sv, used for argument-checking */
103typedef int aio_rfd; /* read file desriptor */
104typedef int aio_wfd; /* write file descriptor */
105
106static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
107
108#define EIO_REQ_MEMBERS \
109 SV *callback; \
110 SV *sv1, *sv2; \
111 STRLEN stroffset; \
112 SV *self;
113
114#define EIO_NO_WRAPPERS 1
115
116#include "libeio/config.h"
117#include "libeio/eio.h"
118
119/* Linux/others */
120#ifndef O_ASYNC
121# define O_ASYNC 0
122#endif
123#ifndef O_DIRECT
124# define O_DIRECT 0
125#endif
126#ifndef O_NOATIME
127# define O_NOATIME 0
128#endif
129
130/* POSIX */
131#ifndef O_CLOEXEC
132# define O_CLOEXEC 0
133#endif
134#ifndef O_NOFOLLOW
135# define O_NOFOLLOW 0
136#endif
137#ifndef O_NOCTTY
138# define O_NOCTTY 0
139#endif
140#ifndef O_NONBLOCK
141# define O_NONBLOCK 0
142#endif
143#ifndef O_EXEC
144# define O_EXEC 0
145#endif
146#ifndef O_SEARCH
147# define O_SEARCH 0
148#endif
149#ifndef O_DIRECTORY
150# define O_DIRECTORY 0
151#endif
152#ifndef O_DSYNC
153# define O_DSYNC 0
154#endif
155#ifndef O_RSYNC
156# define O_RSYNC 0
157#endif
158#ifndef O_SYNC
159# define O_SYNC 0
160#endif
161#ifndef O_TTY_INIT
162# define O_TTY_INIT 0
163#endif
164
165#ifndef POSIX_FADV_NORMAL
166# define POSIX_FADV_NORMAL 0
167#endif
168#ifndef POSIX_FADV_SEQUENTIAL
169# define POSIX_FADV_SEQUENTIAL 0
170#endif
171#ifndef POSIX_FADV_RANDOM
172# define POSIX_FADV_RANDOM 0
173#endif
174#ifndef POSIX_FADV_NOREUSE
175# define POSIX_FADV_NOREUSE 0
176#endif
177#ifndef POSIX_FADV_WILLNEED
178# define POSIX_FADV_WILLNEED 0
179#endif
180#ifndef POSIX_FADV_DONTNEED
181# define POSIX_FADV_DONTNEED 0
182#endif
183
184#if !HAVE_POSIX_FADVISE
185# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
186#endif
187
188#ifndef POSIX_MADV_NORMAL
189# define POSIX_MADV_NORMAL 0
190#endif
191#ifndef POSIX_MADV_SEQUENTIAL
192# define POSIX_MADV_SEQUENTIAL 0
193#endif
194#ifndef POSIX_MADV_RANDOM
195# define POSIX_MADV_RANDOM 0
196#endif
197#ifndef POSIX_MADV_WILLNEED
198# define POSIX_MADV_WILLNEED 0
199#endif
200#ifndef POSIX_MADV_DONTNEED
201# define POSIX_MADV_DONTNEED 0
202#endif
203
204#if !HAVE_POSIX_MADVISE
205# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
206#endif
207
208#ifndef PROT_NONE
209# define PROT_NONE 0
210#endif
211#ifndef PROT_READ
212# define PROT_READ 0
213#endif
214#ifndef PROT_WRITE
215# define PROT_READ 0
216#endif
217#ifndef PROT_EXEC
218# define PROT_EXEC 0
219#endif
220
221#ifndef ST_RDONLY
222# define ST_RDONLY 0
223#endif
224#ifndef ST_NOSUID
225# define ST_NOSUID 0
226#endif
227#ifndef ST_NODEV
228# define ST_NODEV 0
229#endif
230#ifndef ST_NOEXEC
231# define ST_NOEXEC 0
232#endif
233#ifndef ST_SYNCHRONOUS
234# define ST_SYNCHRONOUS 0
235#endif
236#ifndef ST_MANDLOCK
237# define ST_MANDLOCK 0
238#endif
239#ifndef ST_WRITE
240# define ST_WRITE 0
241#endif
242#ifndef ST_APPEND
243# define ST_APPEND 0
244#endif
245#ifndef ST_IMMUTABLE
246# define ST_IMMUTABLE 0
247#endif
248#ifndef ST_NOATIME
249# define ST_NOATIME 0
250#endif
251#ifndef ST_NODIRATIME
252# define ST_NODIRATIME 0
253#endif
254#ifndef ST_RELATIME
255# define ST_RELATIME 0
256#endif
257
258#ifndef S_IFIFO
259# define S_IFIFO 0
260#endif
261#ifndef S_IFCHR
262# define S_IFCHR 0
263#endif
264#ifndef S_IFBLK
265# define S_IFBLK 0
266#endif
267#ifndef S_IFLNK
268# define S_IFLNK 0
269#endif
270#ifndef S_IFREG
271# define S_IFREG 0
272#endif
273#ifndef S_IFDIR
274# define S_IFDIR 0
275#endif
276#ifndef S_IFWHT
277# define S_IFWHT 0
278#endif
279#ifndef S_IFSOCK
280# define S_IFSOCK 0
281#endif
282
283#ifndef MAP_ANONYMOUS
284# ifdef MAP_ANON
285# define MAP_ANONYMOUS MAP_ANON
286# else
287# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
288# endif
289#endif
290#ifndef MAP_HUGETLB
291# define MAP_HUGETLB 0
292#endif
293#ifndef MAP_LOCKED
294# define MAP_LOCKED 0
295#endif
296#ifndef MAP_NORESERVE
297# define MAP_NORESERVE 0
298#endif
299#ifndef MAP_POPULATE
300# define MAP_POPULATE 0
301#endif
302#ifndef MAP_NONBLOCK
303# define MAP_NONBLOCK 0
304#endif
305
306#ifndef makedev
307# define makedev(maj,min) (((maj) << 8) | (min))
308#endif
309#ifndef major
310# define major(dev) ((dev) >> 8)
311#endif
312#ifndef minor
313# define minor(dev) ((dev) & 0xff)
314#endif
315
316#ifndef PAGESIZE
317# define PAGESIZE sysconf (_SC_PAGESIZE)
318#endif
319
320static int req_invoke (eio_req *req);
321#define EIO_FINISH(req) req_invoke (req)
322static void req_destroy (eio_req *grp);
323#define EIO_DESTROY(req) req_destroy (req)
113 324
114enum { 325enum {
115 REQ_QUIT, 326 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}; 327};
131 328
132#define AIO_REQ_KLASS "IO::AIO::REQ" 329#include "libeio/eio.c"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134 330
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; 331typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 332typedef eio_req *aio_req_ornot;
168 333
169enum { 334static SV *on_next_submit;
170 PRI_MIN = -4, 335static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 336static int max_outstanding;
172 337
173 DEFAULT_PRI = 0, 338static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 339
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 ()
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 ()
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 ()
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 ()
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 ()
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 ();
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 340static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 341static void req_cancel (aio_req req);
378 342
343static void want_poll (void)
344{
345 /* write a dummy byte to the pipe so fh becomes ready */
346 s_epipe_signal (&respipe);
347}
348
349static void done_poll (void)
350{
351 /* read any signals sent by the worker threads */
352 s_epipe_drain (&respipe);
353}
354
379/* must be called at most once */ 355/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 356static SV *req_sv (aio_req req, HV *stash)
381{ 357{
382 if (!req->self) 358 if (!req->self)
383 { 359 {
384 req->self = (SV *)newHV (); 360 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 361 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 362 }
387 363
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 364 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 365}
390 366
391static aio_req SvAIO_REQ (SV *sv) 367static aio_req SvAIO_REQ (SV *sv)
392{ 368{
393 MAGIC *mg; 369 MAGIC *mg;
394 370
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 371 if (!SvROK (sv)
372 || (SvSTASH (SvRV (sv)) != aio_grp_stash
373 && SvSTASH (SvRV (sv)) != aio_req_stash
374 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 375 croak ("object of class IO::AIO::REQ expected");
397 376
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 377 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 378
400 return mg ? (aio_req)mg->mg_ptr : 0; 379 return mg ? (aio_req)mg->mg_ptr : 0;
401} 380}
402 381
403static void aio_grp_feed (aio_req grp) 382static void aio_grp_feed (aio_req grp)
404{ 383{
405 block_sig (); 384 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 385 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 386 dSP;
414 387
415 ENTER; 388 ENTER;
416 SAVETMPS; 389 SAVETMPS;
417 PUSHMARK (SP); 390 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 391 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 392 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 393 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 394 SPAGAIN;
422 FREETMPS; 395 FREETMPS;
423 LEAVE; 396 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 } 397 }
434
435 unblock_sig ();
436} 398}
437 399
438static void aio_grp_dec (aio_req grp) 400static void req_submit (eio_req *req)
439{ 401{
440 --grp->size; 402 eio_submit (req);
441 403
442 /* call feeder, if applicable */ 404 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 405 {
448 block_sig (); 406 dSP;
407 SV *cb = sv_2mortal (on_next_submit);
449 408
450 if (!req_invoke (grp)) 409 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 410
457 req_destroy (grp); 411 PUSHMARK (SP);
458 unblock_sig (); 412 PUTBACK;
413 call_sv (cb, G_DISCARD | G_EVAL);
459 } 414 }
460} 415}
461 416
462static int req_invoke (aio_req req) 417static int req_invoke (eio_req *req)
463{ 418{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 419 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 420 SvREADONLY_off (req->sv2);
468 421
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 422 if (!EIO_CANCELLED (req) && req->callback)
470 { 423 {
424 dSP;
425 static SV *sv_result_cache; /* caches the result integer SV */
426 SV *sv_result;
427
471 ENTER; 428 ENTER;
472 SAVETMPS; 429 SAVETMPS;
473 PUSHMARK (SP); 430 PUSHMARK (SP);
474 EXTEND (SP, 1); 431 EXTEND (SP, 1);
475 432
433 /* do not recreate the result IV from scratch each time */
434 if (expect_true (sv_result_cache))
435 {
436 sv_result = sv_result_cache; sv_result_cache = 0;
437 SvIV_set (sv_result, req->result);
438 SvIOK_only (sv_result);
439 }
440 else
441 {
442 sv_result = newSViv (req->result);
443 SvREADONLY_on (sv_result);
444 }
445
476 switch (req->type) 446 switch (req->type)
477 { 447 {
478 case REQ_READDIR: 448 case EIO_READDIR:
479 { 449 {
480 SV *rv = &PL_sv_undef; 450 SV *rv = &PL_sv_undef;
481 451
482 if (req->result >= 0) 452 if (req->result >= 0)
483 { 453 {
484 int i; 454 int i;
485 char *buf = req->ptr2; 455 char *names = (char *)req->ptr2;
456 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 457 AV *av = newAV ();
487 458
488 av_extend (av, req->result - 1); 459 av_extend (av, req->result - 1);
489 460
490 for (i = 0; i < req->result; ++i) 461 for (i = 0; i < req->result; ++i)
491 { 462 {
492 SV *sv = newSVpv (buf, 0); 463 if (req->int1 & EIO_READDIR_DENTS)
464 {
465 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 466
467 if (req->int1 & EIO_READDIR_CUSTOM2)
468 {
469 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
470 AV *avent = newAV ();
471
472 av_extend (avent, 2);
473
474 if (!sv_type [ent->type])
475 {
476 sv_type [ent->type] = newSViv (ent->type);
477 SvREADONLY_on (sv_type [ent->type]);
478 }
479
480 av_store (avent, 0, namesv);
481 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
482 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
483
484 av_store (av, i, newRV_noinc ((SV *)avent));
485 }
486 else
494 av_store (av, i, sv); 487 av_store (av, i, namesv);
488
489 ++ent;
490 }
491 else
492 {
493 SV *name = newSVpv (names, 0);
494 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 495 names += SvCUR (name) + 1;
496 }
496 } 497 }
497 498
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 499 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 500 }
500 501
501 PUSHs (rv); 502 PUSHs (rv);
503
504 if (req->int1 & EIO_READDIR_CUSTOM1)
505 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 506 }
503 break; 507 break;
504 508
505 case REQ_OPEN: 509 case EIO_OPEN:
506 { 510 {
507 /* convert fd to fh */ 511 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 512 SV *fh = &PL_sv_undef;
509 513
510 if (req->result >= 0) 514 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 516 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 517 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 518 char sym [64];
515 int symlen; 519 int symlen;
516 520
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 521 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 522 gv_init (gv, aio_stash, sym, symlen, 0);
519 523
520 symlen = snprintf ( 524 symlen = snprintf (
521 sym, 525 sym,
522 sizeof (sym), 526 sizeof (sym),
523 "%s&=%d", 527 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 528 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 529 (int)req->result
526 ); 530 );
527 531
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 532 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 533 fh = (SV *)gv;
530 } 534 }
531 535
532 PUSHs (fh); 536 PUSHs (fh);
533 } 537 }
534 break; 538 break;
535 539
540 case EIO_STATVFS:
541 case EIO_FSTATVFS:
542 {
543 SV *rv = &PL_sv_undef;
544
545#ifndef _WIN32
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#endif
566
567 PUSHs (rv);
568 }
569
570 break;
571
536 case REQ_GROUP: 572 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 573 req->int1 = 2; /* mark group as finished */
538 574
539 if (req->sv1) 575 if (req->sv1)
540 { 576 {
541 int i; 577 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 581 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 582 PUSHs (*av_fetch (av, i, 0));
547 } 583 }
548 break; 584 break;
549 585
550 case REQ_NOP: 586 case EIO_NOP:
551 case REQ_BUSY: 587 case EIO_BUSY:
552 break; 588 break;
553 589
554 case REQ_READLINK: 590 case EIO_READLINK:
591 case EIO_REALPATH:
555 if (req->result > 0) 592 if (req->result > 0)
556 { 593 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; 594 break;
562 595
563 case REQ_STAT: 596 case EIO_STAT:
564 case REQ_LSTAT: 597 case EIO_LSTAT:
565 case REQ_FSTAT: 598 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 599 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567 PL_laststatval = req->result; 600 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2); 601 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 602 PUSHs (sv_result);
570 break; 603 break;
571 604
572 case REQ_READ: 605 case EIO_READ:
606 {
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 607 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0; 608 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 609 SvPOK_only (req->sv2);
610 SvSETMAGIC (req->sv2);
611 PUSHs (sv_result);
612 }
576 break; 613 break;
577 614
615 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
616 if (req->result > 0)
617 SvIV_set (sv_result, 0);
618 /* FALLTHROUGH */
619
578 default: 620 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 621 PUSHs (sv_result);
580 break; 622 break;
581 } 623 }
582 624
583 errno = req->errorno; 625 errno = req->errorno;
584 626
585 PUTBACK; 627 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 628 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 629 SPAGAIN;
588 630
631 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
632 SvREFCNT_dec (sv_result);
633 else
634 sv_result_cache = sv_result;
635
589 FREETMPS; 636 FREETMPS;
590 LEAVE; 637 LEAVE;
591 638
592 PUTBACK; 639 PUTBACK;
593 } 640 }
594 641
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); 642 return !!SvTRUE (ERRSV);
610} 643}
611 644
612static void req_destroy (aio_req req) 645static void req_destroy (aio_req req)
613{ 646{
614 if (req->self) 647 if (req->self)
… …
619 652
620 SvREFCNT_dec (req->sv1); 653 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 654 SvREFCNT_dec (req->sv2);
622 SvREFCNT_dec (req->callback); 655 SvREFCNT_dec (req->callback);
623 656
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 657 Safefree (req);
628} 658}
629 659
630static void req_cancel_subs (aio_req grp) 660static void req_cancel_subs (aio_req grp)
631{ 661{
632 aio_req sub; 662 aio_req sub;
633 663
634 if (grp->type != REQ_GROUP) 664 if (grp->type != EIO_GROUP)
635 return; 665 return;
636 666
637 SvREFCNT_dec (grp->sv2); 667 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 668 grp->sv2 = 0;
639 669
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 670 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 671}
643 672
644static void req_cancel (aio_req req) 673static void create_respipe (void)
645{ 674{
646 req->flags |= FLAG_CANCELLED;
647
648 req_cancel_subs (req);
649}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656
657static void
658create_respipe ()
659{
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} 677}
694 678
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 ()
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}
789
790static void poll_wait () 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 () 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 736
1093 while (count) 737static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1094 { 738{
1095 ssize_t cnt; 739 int old_errno = errno;
1096 740 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 741 errno = old_errno;
1098 742
1099 if (cnt <= 0) 743 mg->mg_obj = 0; /* just in case */
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104 744
1105 cnt = write (ofd, aio_buf, cnt); 745 SvREADONLY_off (sv);
1106 746
1107 if (cnt <= 0) 747 if (SvPVX (sv) != mg->mg_ptr)
1108 { 748 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112 749
1113 offset += cnt; 750 SvCUR_set (sv, 0);
1114 res += cnt; 751 SvPVX (sv) = 0;
1115 count -= cnt; 752 SvOK_off (sv);
1116 }
1117 }
1118 753
1119 return res; 754 return 0;
1120} 755}
1121 756
1122/* read a full directory */ 757static MGVTBL mmap_vtbl = {
1123static void scandir_ (aio_req req, worker *self) 758 0, 0, 0, 0, mmap_free
1124{ 759};
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 760
1183/*****************************************************************************/ 761/*****************************************************************************/
1184 762
1185X_THREAD_PROC (aio_proc) 763static SV * get_cb (SV *cb_sv)
1186{ 764{
1187 {//D 765 SvGETMAGIC (cb_sv);
1188 aio_req req; 766 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1189 struct timespec ts;
1190 worker *self = (worker *)thr_arg;
1191
1192 /* try to distribute timeouts somewhat randomly */
1193 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1194
1195 for (;;)
1196 {
1197 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1198
1199 X_LOCK (reqlock);
1200
1201 for (;;)
1202 {
1203 self->req = req = reqq_shift (&req_queue);
1204
1205 if (req)
1206 break;
1207
1208 ++idle;
1209
1210 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1211 == ETIMEDOUT)
1212 {
1213 if (idle > max_idle)
1214 {
1215 --idle;
1216 X_UNLOCK (reqlock);
1217 X_LOCK (wrklock);
1218 --started;
1219 X_UNLOCK (wrklock);
1220 goto quit;
1221 }
1222
1223 /* we are allowed to idle, so do so without any timeout */
1224 X_COND_WAIT (reqwait, reqlock);
1225 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1226 }
1227
1228 --idle;
1229 }
1230
1231 --nready;
1232
1233 X_UNLOCK (reqlock);
1234
1235 errno = 0; /* strictly unnecessary */
1236
1237 if (!(req->flags & FLAG_CANCELLED))
1238 switch (req->type)
1239 {
1240 case REQ_READ: req->result = req->offs >= 0
1241 ? pread (req->int1, req->ptr1, req->size, req->offs)
1242 : read (req->int1, req->ptr1, req->size); break;
1243 case REQ_WRITE: req->result = req->offs >= 0
1244 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1245 : write (req->int1, req->ptr1, req->size); break;
1246
1247 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1248 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1249
1250 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1252 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1253
1254 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1255 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1256 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1257 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1258 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1259 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1260
1261 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1262 case REQ_CLOSE: req->result = close (req->int1); break;
1263 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1264 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1265 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1266 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1267 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1268 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1269 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1270 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1271
1272 case REQ_SYNC: req->result = 0; sync (); break;
1273 case REQ_FSYNC: req->result = fsync (req->int1); break;
1274 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1275
1276 case REQ_READDIR: scandir_ (req, self); break;
1277
1278 case REQ_BUSY:
1279#ifdef _WIN32
1280 Sleep (req->nv1 * 1000.);
1281#else
1282 {
1283 struct timeval tv;
1284
1285 tv.tv_sec = req->nv1;
1286 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1287
1288 req->result = select (0, 0, 0, 0, &tv);
1289 }
1290#endif
1291 break;
1292
1293 case REQ_UTIME:
1294 case REQ_FUTIME:
1295 {
1296 struct timeval tv[2];
1297 struct timeval *times;
1298
1299 if (req->nv1 != -1. || req->nv2 != -1.)
1300 {
1301 tv[0].tv_sec = req->nv1;
1302 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1303 tv[1].tv_sec = req->nv2;
1304 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1305
1306 times = tv;
1307 }
1308 else
1309 times = 0;
1310
1311
1312 req->result = req->type == REQ_FUTIME
1313 ? futimes (req->int1, times)
1314 : utimes (req->ptr1, times);
1315 }
1316
1317 case REQ_GROUP:
1318 case REQ_NOP:
1319 break;
1320
1321 case REQ_QUIT:
1322 goto quit;
1323
1324 default:
1325 req->result = -1;
1326 break;
1327 }
1328
1329 req->errorno = errno;
1330
1331 X_LOCK (reslock);
1332
1333 ++npending;
1334
1335 if (!reqq_push (&res_queue, req))
1336 {
1337 /* write a dummy byte to the pipe so fh becomes ready */
1338 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1339
1340 /* optionally signal the main thread asynchronously */
1341 if (main_sig)
1342 pthread_kill (main_tid, main_sig);
1343 }
1344
1345 self->req = 0;
1346 worker_clear (self);
1347
1348 X_UNLOCK (reslock);
1349 }
1350
1351quit:
1352 X_LOCK (wrklock);
1353 worker_free (self);
1354 X_UNLOCK (wrklock);
1355
1356 return 0;
1357 }//D
1358}
1359
1360/*****************************************************************************/
1361
1362static void atfork_prepare (void)
1363{
1364 X_LOCK (wrklock);
1365 X_LOCK (reqlock);
1366 X_LOCK (reslock);
1367#if !HAVE_PREADWRITE
1368 X_LOCK (preadwritelock);
1369#endif
1370#if !HAVE_READDIR_R
1371 X_LOCK (readdirlock);
1372#endif
1373}
1374
1375static void atfork_parent (void)
1376{
1377#if !HAVE_READDIR_R
1378 X_UNLOCK (readdirlock);
1379#endif
1380#if !HAVE_PREADWRITE
1381 X_UNLOCK (preadwritelock);
1382#endif
1383 X_UNLOCK (reslock);
1384 X_UNLOCK (reqlock);
1385 X_UNLOCK (wrklock);
1386}
1387
1388static void atfork_child (void)
1389{
1390 aio_req prv;
1391
1392 while (prv = reqq_shift (&req_queue))
1393 req_destroy (prv);
1394
1395 while (prv = reqq_shift (&res_queue))
1396 req_destroy (prv);
1397
1398 while (wrk_first.next != &wrk_first)
1399 {
1400 worker *wrk = wrk_first.next;
1401
1402 if (wrk->req)
1403 req_destroy (wrk->req);
1404
1405 worker_clear (wrk);
1406 worker_free (wrk);
1407 }
1408
1409 started = 0;
1410 idle = 0;
1411 nreqs = 0;
1412 nready = 0;
1413 npending = 0;
1414
1415 create_respipe ();
1416
1417 atfork_parent ();
1418} 767}
1419 768
1420#define dREQ \ 769#define dREQ \
770 SV *cb_cv; \
1421 aio_req req; \ 771 aio_req req; \
1422 int req_pri = next_pri; \ 772 int req_pri = next_pri; \
1423 next_pri = DEFAULT_PRI + PRI_BIAS; \ 773 next_pri = EIO_PRI_DEFAULT; \
1424 \ 774 \
1425 if (SvOK (callback) && !SvROK (callback)) \ 775 cb_cv = get_cb (callback); \
1426 croak ("callback must be undef or of reference type"); \
1427 \ 776 \
1428 Newz (0, req, 1, aio_cb); \ 777 Newz (0, req, 1, eio_req); \
1429 if (!req) \ 778 if (!req) \
1430 croak ("out of memory during aio_req allocation"); \ 779 croak ("out of memory during eio_req allocation"); \
1431 \ 780 \
1432 req->callback = newSVsv (callback); \ 781 req->callback = SvREFCNT_inc (cb_cv); \
1433 req->pri = req_pri 782 req->pri = req_pri
1434 783
1435#define REQ_SEND \ 784#define REQ_SEND \
785 PUTBACK; \
1436 req_send (req); \ 786 req_submit (req); \
787 SPAGAIN; \
1437 \ 788 \
1438 if (GIMME_V != G_VOID) \ 789 if (GIMME_V != G_VOID) \
1439 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 790 XPUSHs (req_sv (req, aio_req_stash));
1440 791
1441MODULE = IO::AIO PACKAGE = IO::AIO 792MODULE = IO::AIO PACKAGE = IO::AIO
1442 793
1443PROTOTYPES: ENABLE 794PROTOTYPES: ENABLE
1444 795
1445BOOT: 796BOOT:
1446{ 797{
798 static const struct {
799 const char *name;
800 IV iv;
801 } *civ, const_iv[] = {
802# define const_niv(name, value) { # name, (IV) value },
803# define const_iv(name) { # name, (IV) name },
804# define const_eio(name) { # name, (IV) EIO_ ## name },
805 const_iv (EXDEV)
806 const_iv (ENOSYS)
807 const_iv (O_RDONLY)
808 const_iv (O_WRONLY)
809 const_iv (O_RDWR)
810 const_iv (O_CREAT)
811 const_iv (O_TRUNC)
812 const_iv (O_EXCL)
813 const_iv (O_APPEND)
814
815 const_iv (O_ASYNC)
816 const_iv (O_DIRECT)
817 const_iv (O_NOATIME)
818
819 const_iv (O_CLOEXEC)
820 const_iv (O_NOCTTY)
821 const_iv (O_NOFOLLOW)
822 const_iv (O_NONBLOCK)
823 const_iv (O_EXEC)
824 const_iv (O_SEARCH)
825 const_iv (O_DIRECTORY)
826 const_iv (O_DSYNC)
827 const_iv (O_RSYNC)
828 const_iv (O_SYNC)
829 const_iv (O_TTY_INIT)
830
831 const_iv (S_IFIFO)
832 const_iv (S_IFCHR)
833 const_iv (S_IFBLK)
834 const_iv (S_IFLNK)
835 const_iv (S_IFREG)
836 const_iv (S_IFDIR)
837 const_iv (S_IFWHT)
838 const_iv (S_IFSOCK)
839 const_iv (S_IFMT)
840
841 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
842 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
843 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
844 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
845 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
846 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
847
848 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
849 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
850 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
851 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
852 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
853
854 const_iv (ST_RDONLY)
855 const_iv (ST_NOSUID)
856 const_iv (ST_NODEV)
857 const_iv (ST_NOEXEC)
858 const_iv (ST_SYNCHRONOUS)
859 const_iv (ST_MANDLOCK)
860 const_iv (ST_WRITE)
861 const_iv (ST_APPEND)
862 const_iv (ST_IMMUTABLE)
863 const_iv (ST_NOATIME)
864 const_iv (ST_NODIRATIME)
865 const_iv (ST_RELATIME)
866
867 const_iv (PROT_NONE)
868 const_iv (PROT_EXEC)
869 const_iv (PROT_READ)
870 const_iv (PROT_WRITE)
871
872 /*const_iv (MAP_FIXED)*/
873 const_iv (MAP_PRIVATE)
874 const_iv (MAP_SHARED)
875 const_iv (MAP_ANONYMOUS)
876
877 /* linuxish */
878 const_iv (MAP_HUGETLB)
879 const_iv (MAP_LOCKED)
880 const_iv (MAP_NORESERVE)
881 const_iv (MAP_POPULATE)
882 const_iv (MAP_NONBLOCK)
883
884 const_eio (MCL_FUTURE)
885 const_eio (MCL_CURRENT)
886
887 const_eio (MS_ASYNC)
888 const_eio (MS_INVALIDATE)
889 const_eio (MS_SYNC)
890
891 const_eio (MT_MODIFY)
892
893 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
894 const_eio (SYNC_FILE_RANGE_WRITE)
895 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
896
897 const_eio (FALLOC_FL_KEEP_SIZE)
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
1447 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);
1448 918
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 919 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 920 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1451 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1452 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1453 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1454#ifdef _WIN32
1455 X_MUTEX_CHECK (wrklock);
1456 X_MUTEX_CHECK (reslock);
1457 X_MUTEX_CHECK (reqlock);
1458 X_MUTEX_CHECK (reqwait);
1459 X_MUTEX_CHECK (preadwritelock);
1460 X_MUTEX_CHECK (readdirlock);
1461 921
1462 X_COND_CHECK (reqwait); 922 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1463#else
1464 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1465 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1466#endif
1467 923
1468 create_respipe (); 924 create_respipe ();
1469 925
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 926 if (eio_init (want_poll, done_poll) < 0)
1471} 927 croak ("IO::AIO: unable to initialise eio library");
1472 928
929 /* atfork child called in fifo order, so before eio's handler */
930 X_THREAD_ATFORK (0, 0, atfork_child);
931}
932
1473void 933void
1474max_poll_reqs (int nreqs) 934max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 935 PROTOTYPE: $
1476 CODE: 936 CODE:
1477 max_poll_reqs = nreqs; 937 eio_set_max_poll_reqs (nreqs);
1478 938
1479void 939void
1480max_poll_time (double nseconds) 940max_poll_time (double nseconds)
1481 PROTOTYPE: $ 941 PROTOTYPE: $
1482 CODE: 942 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 943 eio_set_max_poll_time (nseconds);
1484 944
1485void 945void
1486min_parallel (int nthreads) 946min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 947 PROTOTYPE: $
1496 CODE: 948 CODE:
1497 set_max_idle (nthreads); 949 eio_set_min_parallel (nthreads);
1498 950
1499int 951void
1500max_outstanding (int maxreqs) 952max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 953 PROTOTYPE: $
1502 CODE: 954 CODE:
1503 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:
1504 max_outstanding = maxreqs; 973 max_outstanding = maxreqs;
1505 OUTPUT:
1506 RETVAL
1507 974
1508void 975void
1509aio_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)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 977 PPCODE:
1512{ 978{
1513 dREQ; 979 dREQ;
1514 980
1515 req->type = REQ_OPEN; 981 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 982 req->sv1 = newSVsv (pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1); 983 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 984 req->int1 = flags;
1519 req->mode = mode; 985 req->int2 = mode;
1520 986
1521 REQ_SEND; 987 REQ_SEND;
1522} 988}
1523 989
1524void 990void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 991aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 992 ALIAS:
1528 aio_fsync = REQ_FSYNC 993 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 994 aio_fdatasync = EIO_FDATASYNC
1530 PPCODE: 995 PPCODE:
1531{ 996{
997 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 998 dREQ;
1533 999
1534 req->type = ix; 1000 req->type = ix;
1535 req->sv1 = newSVsv (fh); 1001 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1002 req->int1 = fd;
1537 1003
1538 REQ_SEND (req); 1004 REQ_SEND (req);
1539} 1005}
1540 1006
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 1007void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 1008aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 1009 PPCODE:
1553{ 1010{
1011 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1012 dREQ;
1555 1013
1556 req->type = REQ_CLOSE; 1014 req->type = EIO_SYNC_FILE_RANGE;
1015 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 1016 req->int1 = fd;
1017 req->offs = offset;
1018 req->size = nbytes;
1019 req->int2 = flags;
1020
1021 REQ_SEND (req);
1022}
1023
1024void
1025aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1026 PPCODE:
1027{
1028 int fd = s_fileno_croak (fh, 0);
1029 dREQ;
1030
1031 req->type = EIO_FALLOCATE;
1032 req->sv1 = newSVsv (fh);
1033 req->int1 = fd;
1034 req->int2 = mode;
1035 req->offs = offset;
1036 req->size = len;
1037
1038 REQ_SEND (req);
1039}
1040
1041void
1042aio_close (SV *fh, SV *callback=&PL_sv_undef)
1043 PPCODE:
1044{
1045 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1046 int fd = s_fileno_croak (fh, 0);
1047 dREQ;
1048
1049 if (expect_false (close_fd < 0))
1050 {
1051#ifdef _WIN32
1052 close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);
1053#else
1054 int pipefd [2];
1055
1056 if (pipe (pipefd) < 0
1057 || close (pipefd [1]) < 0
1058 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1059 abort (); /*D*/
1060
1061 close_fd = pipefd [0];
1062#endif
1063 }
1064
1065 req->type = EIO_DUP2;
1066 req->int1 = close_fd;
1067 req->sv2 = newSVsv (fh);
1068 req->int2 = fd;
1558 1069
1559 REQ_SEND (req); 1070 REQ_SEND (req);
1560} 1071}
1561 1072
1562void 1073void
1563aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1074aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1564 ALIAS: 1075 ALIAS:
1565 aio_read = REQ_READ 1076 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1077 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1078 PPCODE:
1569{ 1079{
1570 STRLEN svlen; 1080 STRLEN svlen;
1081 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1082 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1083 UV len = SvUV (length);
1573 1084
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1085 if (dataoffset < 0)
1578 dataoffset += svlen; 1086 dataoffset += svlen;
1579 1087
1580 if (dataoffset < 0 || dataoffset > svlen) 1088 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1089 croak ("dataoffset outside of data scalar");
1582 1090
1583 if (ix == REQ_WRITE) 1091 if (ix == EIO_WRITE)
1584 { 1092 {
1585 /* write: check length and adjust. */ 1093 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1094 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1095 len = svlen - dataoffset;
1588 } 1096 }
1589 else 1097 else
1590 { 1098 {
1591 /* read: grow scalar as necessary */ 1099 /* read: check type and grow scalar as necessary */
1100 SvUPGRADE (data, SVt_PV);
1592 svptr = SvGROW (data, len + dataoffset + 1); 1101 svptr = SvGROW (data, len + dataoffset + 1);
1593 } 1102 }
1594 1103
1595 if (len < 0)
1596 croak ("length must not be negative");
1597
1598 { 1104 {
1599 dREQ; 1105 dREQ;
1600 1106
1601 req->type = ix; 1107 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1108 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1109 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1110 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1111 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1112 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1113 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1114 req->stroffset = dataoffset;
1610 1115
1611 if (!SvREADONLY (data)) 1116 if (!SvREADONLY (data))
1612 { 1117 {
1613 SvREADONLY_on (data); 1118 SvREADONLY_on (data);
… …
1618 } 1123 }
1619} 1124}
1620 1125
1621void 1126void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1127aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1623 PROTOTYPE: $$;$ 1128 ALIAS:
1129 aio_readlink = EIO_READLINK
1130 aio_realpath = EIO_REALPATH
1624 PPCODE: 1131 PPCODE:
1625{ 1132{
1626 SV *data; 1133 SV *data;
1627 dREQ; 1134 dREQ;
1628 1135
1629 data = newSV (NAME_MAX);
1630 SvPOK_on (data);
1631
1632 req->type = REQ_READLINK; 1136 req->type = ix;
1633 req->sv1 = newSVsv (path); 1137 req->sv1 = newSVsv (path);
1634 req->ptr2 = SvPVbyte_nolen (req->sv1); 1138 req->ptr1 = SvPVbyte_nolen (req->sv1);
1635 req->sv2 = data;
1636 req->ptr1 = SvPVbyte_nolen (data);
1637 1139
1638 REQ_SEND; 1140 REQ_SEND;
1639} 1141}
1640 1142
1641void 1143void
1642aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1144aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1643 PROTOTYPE: $$$$;$
1644 PPCODE: 1145 PPCODE:
1645{ 1146{
1147 int ifd = s_fileno_croak (in_fh , 0);
1148 int ofd = s_fileno_croak (out_fh, 1);
1646 dREQ; 1149 dREQ;
1647 1150
1648 req->type = REQ_SENDFILE; 1151 req->type = EIO_SENDFILE;
1649 req->sv1 = newSVsv (out_fh); 1152 req->sv1 = newSVsv (out_fh);
1650 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1153 req->int1 = ofd;
1651 req->sv2 = newSVsv (in_fh); 1154 req->sv2 = newSVsv (in_fh);
1652 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1155 req->int2 = ifd;
1653 req->offs = SvVAL64 (in_offset); 1156 req->offs = in_offset;
1654 req->size = length; 1157 req->size = length;
1655 1158
1656 REQ_SEND; 1159 REQ_SEND;
1657} 1160}
1658 1161
1659void 1162void
1660aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1163aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$;$
1662 PPCODE: 1164 PPCODE:
1663{ 1165{
1166 int fd = s_fileno_croak (fh, 0);
1664 dREQ; 1167 dREQ;
1665 1168
1666 req->type = REQ_READAHEAD; 1169 req->type = EIO_READAHEAD;
1667 req->sv1 = newSVsv (fh); 1170 req->sv1 = newSVsv (fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1171 req->int1 = fd;
1669 req->offs = SvVAL64 (offset); 1172 req->offs = offset;
1670 req->size = length; 1173 req->size = length;
1671 1174
1672 REQ_SEND; 1175 REQ_SEND;
1673} 1176}
1674 1177
1675void 1178void
1676aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1179aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1677 ALIAS: 1180 ALIAS:
1678 aio_stat = REQ_STAT 1181 aio_stat = EIO_STAT
1679 aio_lstat = REQ_LSTAT 1182 aio_lstat = EIO_LSTAT
1183 aio_statvfs = EIO_STATVFS
1680 PPCODE: 1184 PPCODE:
1681{ 1185{
1682 dREQ; 1186 dREQ;
1683 1187
1684 req->ptr2 = malloc (sizeof (Stat_t));
1685 if (!req->ptr2)
1686 {
1687 req_destroy (req);
1688 croak ("out of memory during aio_stat statdata allocation");
1689 }
1690
1691 req->flags |= FLAG_PTR2_FREE;
1692 req->sv1 = newSVsv (fh_or_path); 1188 req->sv1 = newSVsv (fh_or_path);
1693 1189
1694 if (SvPOK (fh_or_path)) 1190 if (SvPOK (req->sv1))
1695 { 1191 {
1696 req->type = ix; 1192 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1); 1193 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 } 1194 }
1699 else 1195 else
1700 { 1196 {
1701 req->type = REQ_FSTAT; 1197 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1198 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1703 } 1199 }
1704 1200
1705 REQ_SEND; 1201 REQ_SEND;
1706} 1202}
1203
1204UV
1205major (UV dev)
1206 ALIAS:
1207 minor = 1
1208 CODE:
1209 RETVAL = ix ? major (dev) : minor (dev);
1210 OUTPUT:
1211 RETVAL
1212
1213UV
1214makedev (UV maj, UV min)
1215 CODE:
1216 RETVAL = makedev (maj, min);
1217 OUTPUT:
1218 RETVAL
1707 1219
1708void 1220void
1709aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1221aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1710 PPCODE: 1222 PPCODE:
1711{ 1223{
… …
1713 1225
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1226 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1227 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1228 req->sv1 = newSVsv (fh_or_path);
1717 1229
1718 if (SvPOK (fh_or_path)) 1230 if (SvPOK (req->sv1))
1719 { 1231 {
1720 req->type = REQ_UTIME; 1232 req->type = EIO_UTIME;
1721 req->ptr1 = SvPVbyte_nolen (req->sv1); 1233 req->ptr1 = SvPVbyte_nolen (req->sv1);
1722 } 1234 }
1723 else 1235 else
1724 { 1236 {
1725 req->type = REQ_FUTIME; 1237 req->type = EIO_FUTIME;
1726 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1238 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1727 } 1239 }
1728 1240
1729 REQ_SEND; 1241 REQ_SEND;
1730} 1242}
… …
1736 dREQ; 1248 dREQ;
1737 1249
1738 req->sv1 = newSVsv (fh_or_path); 1250 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1251 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1252
1741 if (SvPOK (fh_or_path)) 1253 if (SvPOK (req->sv1))
1742 { 1254 {
1743 req->type = REQ_TRUNCATE; 1255 req->type = EIO_TRUNCATE;
1744 req->ptr1 = SvPVbyte_nolen (req->sv1); 1256 req->ptr1 = SvPVbyte_nolen (req->sv1);
1745 } 1257 }
1746 else 1258 else
1747 { 1259 {
1748 req->type = REQ_FTRUNCATE; 1260 req->type = EIO_FTRUNCATE;
1749 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1261 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1750 } 1262 }
1751 1263
1752 REQ_SEND; 1264 REQ_SEND;
1753} 1265}
1754 1266
1755void 1267void
1756aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1268aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1269 ALIAS:
1270 aio_chmod = EIO_CHMOD
1271 aio_mkdir = EIO_MKDIR
1757 PPCODE: 1272 PPCODE:
1758{ 1273{
1759 dREQ; 1274 dREQ;
1760 1275
1761 req->mode = mode; 1276 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1277 req->sv1 = newSVsv (fh_or_path);
1763 1278
1764 if (SvPOK (fh_or_path)) 1279 if (SvPOK (req->sv1))
1765 { 1280 {
1766 req->type = REQ_CHMOD; 1281 req->type = ix;
1767 req->ptr1 = SvPVbyte_nolen (req->sv1); 1282 req->ptr1 = SvPVbyte_nolen (req->sv1);
1768 } 1283 }
1769 else 1284 else
1770 { 1285 {
1771 req->type = REQ_FCHMOD; 1286 req->type = EIO_FCHMOD;
1772 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1287 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1773 } 1288 }
1774 1289
1775 REQ_SEND; 1290 REQ_SEND;
1776} 1291}
… …
1783 1298
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1299 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1300 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1301 req->sv1 = newSVsv (fh_or_path);
1787 1302
1788 if (SvPOK (fh_or_path)) 1303 if (SvPOK (req->sv1))
1789 { 1304 {
1790 req->type = REQ_CHOWN; 1305 req->type = EIO_CHOWN;
1791 req->ptr1 = SvPVbyte_nolen (req->sv1); 1306 req->ptr1 = SvPVbyte_nolen (req->sv1);
1792 } 1307 }
1793 else 1308 else
1794 { 1309 {
1795 req->type = REQ_FCHOWN; 1310 req->type = EIO_FCHOWN;
1796 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1311 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1797 } 1312 }
1798 1313
1799 REQ_SEND; 1314 REQ_SEND;
1800} 1315}
1801 1316
1802void 1317void
1318aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1319 PPCODE:
1320{
1321 dREQ;
1322
1323 req->type = EIO_READDIR;
1324 req->sv1 = newSVsv (pathname);
1325 req->ptr1 = SvPVbyte_nolen (req->sv1);
1326 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1327
1328 if (flags & EIO_READDIR_DENTS)
1329 req->int1 |= EIO_READDIR_CUSTOM2;
1330
1331 REQ_SEND;
1332}
1333
1334void
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1335aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1804 ALIAS: 1336 ALIAS:
1805 aio_unlink = REQ_UNLINK 1337 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1338 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1339 aio_readdir = EIO_READDIR
1808 PPCODE: 1340 PPCODE:
1809{ 1341{
1810 dREQ; 1342 dREQ;
1811 1343
1812 req->type = ix; 1344 req->type = ix;
… …
1815 1347
1816 REQ_SEND; 1348 REQ_SEND;
1817} 1349}
1818 1350
1819void 1351void
1820aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1821 PPCODE:
1822{
1823 dREQ;
1824
1825 req->type = REQ_MKDIR;
1826 req->sv1 = newSVsv (pathname);
1827 req->ptr1 = SvPVbyte_nolen (req->sv1);
1828 req->mode = mode;
1829
1830 REQ_SEND;
1831}
1832
1833void
1834aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1352aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1835 ALIAS: 1353 ALIAS:
1836 aio_link = REQ_LINK 1354 aio_link = EIO_LINK
1837 aio_symlink = REQ_SYMLINK 1355 aio_symlink = EIO_SYMLINK
1838 aio_rename = REQ_RENAME 1356 aio_rename = EIO_RENAME
1839 PPCODE: 1357 PPCODE:
1840{ 1358{
1841 dREQ; 1359 dREQ;
1842 1360
1843 req->type = ix; 1361 req->type = ix;
1844 req->sv2 = newSVsv (oldpath); 1362 req->sv1 = newSVsv (oldpath);
1363 req->ptr1 = SvPVbyte_nolen (req->sv1);
1364 req->sv2 = newSVsv (newpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2); 1365 req->ptr2 = SvPVbyte_nolen (req->sv2);
1846 req->sv1 = newSVsv (newpath);
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1366
1849 REQ_SEND; 1367 REQ_SEND;
1850} 1368}
1851 1369
1852void 1370void
1853aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1371aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1854 PPCODE: 1372 PPCODE:
1855{ 1373{
1856 dREQ; 1374 dREQ;
1857 1375
1858 req->type = REQ_MKNOD; 1376 req->type = EIO_MKNOD;
1859 req->sv1 = newSVsv (pathname); 1377 req->sv1 = newSVsv (pathname);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1); 1378 req->ptr1 = SvPVbyte_nolen (req->sv1);
1861 req->mode = (mode_t)mode; 1379 req->int2 = (mode_t)mode;
1862 req->offs = dev; 1380 req->offs = dev;
1863 1381
1864 REQ_SEND; 1382 REQ_SEND;
1865} 1383}
1866 1384
1867void 1385void
1386aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1387 ALIAS:
1388 aio_mtouch = EIO_MTOUCH
1389 aio_msync = EIO_MSYNC
1390 PPCODE:
1391{
1392 STRLEN svlen;
1393 char *svptr = SvPVbyte (data, svlen);
1394 UV len = SvUV (length);
1395
1396 if (offset < 0)
1397 offset += svlen;
1398
1399 if (offset < 0 || offset > svlen)
1400 croak ("offset outside of scalar");
1401
1402 if (!SvOK (length) || len + offset > svlen)
1403 len = svlen - offset;
1404
1405 {
1406 dREQ;
1407
1408 req->type = ix;
1409 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr2 = (char *)svptr + offset;
1411 req->size = len;
1412 req->int1 = flags;
1413
1414 REQ_SEND;
1415 }
1416}
1417
1418void
1419aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1420 PPCODE:
1421{
1422 STRLEN svlen;
1423 char *svptr = SvPVbyte (data, svlen);
1424 UV len = SvUV (length);
1425
1426 if (offset < 0)
1427 offset += svlen;
1428
1429 if (offset < 0 || offset > svlen)
1430 croak ("offset outside of scalar");
1431
1432 if (!SvOK (length) || len + offset > svlen)
1433 len = svlen - offset;
1434
1435 {
1436 dREQ;
1437
1438 req->type = EIO_MLOCK;
1439 req->sv2 = SvREFCNT_inc (data);
1440 req->ptr2 = (char *)svptr + offset;
1441 req->size = len;
1442
1443 REQ_SEND;
1444 }
1445}
1446
1447void
1448aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->type = EIO_MLOCKALL;
1454 req->int1 = flags;
1455
1456 REQ_SEND;
1457}
1458
1459void
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1460aio_busy (double delay, SV *callback=&PL_sv_undef)
1869 PPCODE: 1461 PPCODE:
1870{ 1462{
1871 dREQ; 1463 dREQ;
1872 1464
1873 req->type = REQ_BUSY; 1465 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1466 req->nv1 = delay < 0. ? 0. : delay;
1875 1467
1876 REQ_SEND; 1468 REQ_SEND;
1877} 1469}
1878 1470
1879void 1471void
1880aio_group (SV *callback=&PL_sv_undef) 1472aio_group (SV *callback=&PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1473 PPCODE:
1883{ 1474{
1884 dREQ; 1475 dREQ;
1885 1476
1886 req->type = REQ_GROUP; 1477 req->type = EIO_GROUP;
1887 1478
1888 req_send (req); 1479 req_submit (req);
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1480 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1481}
1891 1482
1892void 1483void
1893aio_nop (SV *callback=&PL_sv_undef) 1484aio_nop (SV *callback=&PL_sv_undef)
1894 ALIAS: 1485 ALIAS:
1895 aio_nop = REQ_NOP 1486 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1487 aio_sync = EIO_SYNC
1897 PPCODE: 1488 PPCODE:
1898{ 1489{
1899 dREQ; 1490 dREQ;
1900 1491
1901 req->type = ix; 1492 req->type = ix;
… …
1903 REQ_SEND; 1494 REQ_SEND;
1904} 1495}
1905 1496
1906int 1497int
1907aioreq_pri (int pri = 0) 1498aioreq_pri (int pri = 0)
1908 PROTOTYPE: ;$
1909 CODE: 1499 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 1500 RETVAL = next_pri;
1911 if (items > 0) 1501 if (items > 0)
1912 { 1502 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 1503 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 1504 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 1505 next_pri = pri;
1916 } 1506 }
1917 OUTPUT: 1507 OUTPUT:
1918 RETVAL 1508 RETVAL
1919 1509
1920void 1510void
1921aioreq_nice (int nice = 0) 1511aioreq_nice (int nice = 0)
1922 CODE: 1512 CODE:
1923 nice = next_pri - nice; 1513 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 1514 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 1515 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 1516 next_pri = nice;
1927 1517
1928void 1518void
1929flush () 1519flush ()
1930 PROTOTYPE:
1931 CODE: 1520 CODE:
1932 while (nreqs) 1521 while (eio_nreqs ())
1933 { 1522 {
1934 poll_wait (); 1523 poll_wait ();
1935 poll_cb (); 1524 poll_cb ();
1936 } 1525 }
1937 1526
1938int 1527int
1939poll() 1528poll ()
1940 PROTOTYPE:
1941 CODE: 1529 CODE:
1942 poll_wait (); 1530 poll_wait ();
1943 RETVAL = poll_cb (); 1531 RETVAL = poll_cb ();
1944 OUTPUT: 1532 OUTPUT:
1945 RETVAL 1533 RETVAL
1946 1534
1947int 1535int
1948poll_fileno() 1536poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 1537 CODE:
1951 RETVAL = respipe [0]; 1538 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 1539 OUTPUT:
1953 RETVAL 1540 RETVAL
1954 1541
1955int 1542int
1956poll_cb(...) 1543poll_cb (...)
1957 PROTOTYPE: 1544 PROTOTYPE:
1958 CODE: 1545 CODE:
1959 RETVAL = poll_cb (); 1546 RETVAL = poll_cb ();
1960 OUTPUT: 1547 OUTPUT:
1961 RETVAL 1548 RETVAL
1962 1549
1963void 1550void
1964poll_wait() 1551poll_wait ()
1965 PROTOTYPE:
1966 CODE: 1552 CODE:
1967 poll_wait (); 1553 poll_wait ();
1968 1554
1969void
1970setsig (int signum = SIGIO)
1971 PROTOTYPE: ;$
1972 CODE:
1973{
1974 if (block_sig_level)
1975 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1976
1977 X_LOCK (reslock);
1978 main_tid = pthread_self ();
1979 main_sig = signum;
1980 X_UNLOCK (reslock);
1981
1982 if (main_sig && npending)
1983 pthread_kill (main_tid, main_sig);
1984}
1985
1986void
1987aio_block (SV *cb)
1988 PROTOTYPE: &
1989 PPCODE:
1990{
1991 int count;
1992
1993 block_sig ();
1994 PUSHMARK (SP);
1995 PUTBACK;
1996 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1997 SPAGAIN;
1998 unblock_sig ();
1999
2000 if (SvTRUE (ERRSV))
2001 croak (0);
2002
2003 XSRETURN (count);
2004}
2005
2006int 1555int
2007nreqs() 1556nreqs ()
2008 PROTOTYPE:
2009 CODE: 1557 CODE:
2010 RETVAL = nreqs; 1558 RETVAL = eio_nreqs ();
2011 OUTPUT: 1559 OUTPUT:
2012 RETVAL 1560 RETVAL
2013 1561
2014int 1562int
2015nready() 1563nready ()
2016 PROTOTYPE:
2017 CODE: 1564 CODE:
2018 RETVAL = get_nready (); 1565 RETVAL = eio_nready ();
2019 OUTPUT: 1566 OUTPUT:
2020 RETVAL 1567 RETVAL
2021 1568
2022int 1569int
2023npending() 1570npending ()
2024 PROTOTYPE:
2025 CODE: 1571 CODE:
2026 RETVAL = get_npending (); 1572 RETVAL = eio_npending ();
2027 OUTPUT: 1573 OUTPUT:
2028 RETVAL 1574 RETVAL
2029 1575
2030int 1576int
2031nthreads() 1577nthreads ()
2032 PROTOTYPE:
2033 CODE: 1578 CODE:
2034 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1579 RETVAL = eio_nthreads ();
2035 RETVAL = started;
2036 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2037 OUTPUT: 1580 OUTPUT:
2038 RETVAL 1581 RETVAL
2039 1582
1583int
1584fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1585 CODE:
1586 RETVAL = posix_fadvise (fh, offset, length, advice);
1587 OUTPUT:
1588 RETVAL
1589
1590ssize_t
1591sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1592 CODE:
1593 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1594 OUTPUT:
1595 RETVAL
1596
1597void
1598mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1599 PPCODE:
1600 sv_unmagic (scalar, MMAP_MAGIC);
1601{
1602 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1603 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1604 if (addr == (void *)-1)
1605 XSRETURN_NO;
1606
1607 sv_force_normal (scalar);
1608
1609 /* we store the length in mg_obj, as namlen is I32 :/ */
1610 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1611 ->mg_obj = (SV *)length;
1612
1613 SvUPGRADE (scalar, SVt_PV); /* nop... */
1614
1615 if (!(prot & PROT_WRITE))
1616 SvREADONLY_on (scalar);
1617
1618 if (SvLEN (scalar))
1619 Safefree (SvPVX (scalar));
1620
1621 SvPVX (scalar) = (char *)addr;
1622 SvCUR_set (scalar, length);
1623 SvLEN_set (scalar, 0);
1624 SvPOK_only (scalar);
1625
1626 XSRETURN_YES;
1627}
1628
1629void
1630munmap (SV *scalar)
1631 CODE:
1632 sv_unmagic (scalar, MMAP_MAGIC);
1633
1634int
1635madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1636 ALIAS:
1637 mprotect = 1
1638 CODE:
1639{
1640 STRLEN svlen;
1641 void *addr = SvPVbyte (scalar, svlen);
1642 size_t len = SvUV (length);
1643
1644 if (offset < 0)
1645 offset += svlen;
1646
1647 if (offset < 0 || offset > svlen)
1648 croak ("offset outside of scalar");
1649
1650 if (!SvOK (length) || len + offset > svlen)
1651 len = svlen - offset;
1652
1653 addr = (void *)(((intptr_t)addr) + offset);
1654 eio_page_align (&addr, &len);
1655
1656 switch (ix)
1657 {
1658 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1659 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1660 }
1661}
1662 OUTPUT:
1663 RETVAL
1664
1665int
1666munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1667 CODE:
1668{
1669 STRLEN svlen;
1670 void *addr = SvPVbyte (scalar, svlen);
1671 size_t len = SvUV (length);
1672
1673 if (offset < 0)
1674 offset += svlen;
1675
1676 if (offset < 0 || offset > svlen)
1677 croak ("offset outside of scalar");
1678
1679 if (!SvOK (length) || len + offset > svlen)
1680 len = svlen - offset;
1681
1682 addr = (void *)(((intptr_t)addr) + offset);
1683 eio_page_align (&addr, &len);
1684#if _POSIX_MEMLOCK_RANGE
1685 RETVAL = munlock (addr, len);
1686#else
1687 RETVAL = ((errno = ENOSYS), -1);
1688#endif
1689}
1690 OUTPUT:
1691 RETVAL
1692
1693int
1694munlockall ()
1695 CODE:
1696#if _POSIX_MEMLOCK
1697 munlockall ();
1698#else
1699 RETVAL = -1;
1700 errno = ENOSYS;
1701#endif
1702 OUTPUT:
1703 RETVAL
1704
1705void _on_next_submit (SV *cb)
1706 CODE:
1707 SvREFCNT_dec (on_next_submit);
1708 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1709
2040PROTOTYPES: DISABLE 1710PROTOTYPES: DISABLE
2041 1711
2042MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1712MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2043 1713
2044void 1714void
2045cancel (aio_req_ornot req) 1715cancel (aio_req_ornot req)
2046 CODE: 1716 CODE:
2047 req_cancel (req); 1717 eio_cancel (req);
2048 1718
2049void 1719void
2050cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1720cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2051 CODE: 1721 PPCODE:
1722{
1723 if (GIMME_V != G_VOID)
1724 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1725
1726 if (items > 1)
1727 {
1728 SV *cb_cv =get_cb (callback);
1729
2052 SvREFCNT_dec (req->callback); 1730 SvREFCNT_dec (req->callback);
2053 req->callback = newSVsv (callback); 1731 req->callback = SvREFCNT_inc (cb_cv);
1732 }
1733}
2054 1734
2055MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1735MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2056 1736
2057void 1737void
2058add (aio_req grp, ...) 1738add (aio_req grp, ...)
2059 PPCODE: 1739 PPCODE:
2060{ 1740{
2061 int i; 1741 int i;
2062 aio_req req;
2063
2064 if (main_sig && !block_sig_level)
2065 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2066 1742
2067 if (grp->int1 == 2) 1743 if (grp->int1 == 2)
2068 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1744 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2069 1745
2070 for (i = 1; i < items; ++i ) 1746 for (i = 1; i < items; ++i )
2071 { 1747 {
1748 aio_req req;
1749
2072 if (GIMME_V != G_VOID) 1750 if (GIMME_V != G_VOID)
2073 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1751 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2074 1752
2075 req = SvAIO_REQ (ST (i)); 1753 req = SvAIO_REQ (ST (i));
2076 1754
2077 if (req) 1755 if (req)
2078 { 1756 eio_grp_add (grp, req);
2079 ++grp->size;
2080 req->grp = grp;
2081
2082 req->grp_prev = 0;
2083 req->grp_next = grp->grp_first;
2084
2085 if (grp->grp_first)
2086 grp->grp_first->grp_prev = req;
2087
2088 grp->grp_first = req;
2089 }
2090 } 1757 }
2091} 1758}
2092 1759
2093void 1760void
2094cancel_subs (aio_req_ornot req) 1761cancel_subs (aio_req_ornot req)
… …
2103 AV *av; 1770 AV *av;
2104 1771
2105 grp->errorno = errno; 1772 grp->errorno = errno;
2106 1773
2107 av = newAV (); 1774 av = newAV ();
1775 av_extend (av, items - 1);
2108 1776
2109 for (i = 1; i < items; ++i ) 1777 for (i = 1; i < items; ++i )
2110 av_push (av, newSVsv (ST (i))); 1778 av_push (av, newSVsv (ST (i)));
2111 1779
2112 SvREFCNT_dec (grp->sv1); 1780 SvREFCNT_dec (grp->sv1);
… …
2119 grp->errorno = errorno; 1787 grp->errorno = errorno;
2120 1788
2121void 1789void
2122limit (aio_req grp, int limit) 1790limit (aio_req grp, int limit)
2123 CODE: 1791 CODE:
2124 grp->int2 = limit; 1792 eio_grp_limit (grp, limit);
2125 aio_grp_feed (grp);
2126 1793
2127void 1794void
2128feed (aio_req grp, SV *callback=&PL_sv_undef) 1795feed (aio_req grp, SV *callback=&PL_sv_undef)
2129 CODE: 1796 CODE:
2130{ 1797{
2131 SvREFCNT_dec (grp->sv2); 1798 SvREFCNT_dec (grp->sv2);
2132 grp->sv2 = newSVsv (callback); 1799 grp->sv2 = newSVsv (callback);
1800 grp->feed = aio_grp_feed;
2133 1801
2134 if (grp->int2 <= 0) 1802 if (grp->int2 <= 0)
2135 grp->int2 = 2; 1803 grp->int2 = 2;
2136 1804
2137 aio_grp_feed (grp); 1805 eio_grp_limit (grp, grp->int2);
2138} 1806}
2139 1807

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