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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.111 by root, Sun Mar 30 06:31:49 2008 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
102static HV *stash; 85/*****************************************************************************/
103 86
104#define dBUF \ 87#if __GNUC__ >= 3
105 char *aio_buf; \ 88# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_LOCK (wrklock); \ 89#else
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 90# define expect(expr,value) (expr)
108 X_UNLOCK (wrklock); \ 91#endif
109 if (!aio_buf) \ 92
110 return -1; 93#define expect_false(expr) expect ((expr) != 0, 0)
94#define expect_true(expr) expect ((expr) != 0, 1)
95
96/*****************************************************************************/
111 97
112typedef 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)
113 314
114enum { 315enum {
115 REQ_QUIT, 316 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}; 317};
131 318
132#define AIO_REQ_KLASS "IO::AIO::REQ" 319#include "libeio/eio.c"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134 320
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; 321typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 322typedef eio_req *aio_req_ornot;
168 323
169enum { 324static SV *on_next_submit;
170 PRI_MIN = -4, 325static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 326static int max_outstanding;
172 327
173 DEFAULT_PRI = 0, 328static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 329
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig (void)
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return;
200
201 if (!main_sig)
202 return;
203
204 sigemptyset (&ss);
205 sigaddset (&ss, main_sig);
206 pthread_sigmask (SIG_BLOCK, &ss, 0);
207}
208
209void unblock_sig (void)
210{
211 sigset_t ss;
212
213 if (--block_sig_level)
214 return;
215
216 if (!main_sig)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 {
249 closedir (wrk->dirp);
250 wrk->dirp = 0;
251 }
252
253 if (wrk->dbuf)
254 {
255 free (wrk->dbuf);
256 wrk->dbuf = 0;
257 }
258}
259
260static void worker_free (worker *wrk)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready (void)
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending (void)
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads (void)
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0;
355
356 --q->size;
357
358 for (pri = NUM_PRI; pri--; )
359 {
360 aio_req req = q->qs[pri];
361
362 if (req)
363 {
364 if (!(q->qs[pri] = req->next))
365 q->qe[pri] = 0;
366
367 return req;
368 }
369 }
370
371 abort ();
372}
373
374static int poll_cb (void);
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 330static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 331static void req_cancel (aio_req req);
378 332
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
379/* must be called at most once */ 345/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 346static SV *req_sv (aio_req req, HV *stash)
381{ 347{
382 if (!req->self) 348 if (!req->self)
383 { 349 {
384 req->self = (SV *)newHV (); 350 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 351 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 352 }
387 353
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 354 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 355}
390 356
391static aio_req SvAIO_REQ (SV *sv) 357static aio_req SvAIO_REQ (SV *sv)
392{ 358{
393 MAGIC *mg; 359 MAGIC *mg;
394 360
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 365 croak ("object of class IO::AIO::REQ expected");
397 366
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 367 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 368
400 return mg ? (aio_req)mg->mg_ptr : 0; 369 return mg ? (aio_req)mg->mg_ptr : 0;
401} 370}
402 371
403static void aio_grp_feed (aio_req grp) 372static void aio_grp_feed (aio_req grp)
404{ 373{
405 block_sig (); 374 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 375 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 376 dSP;
414 377
415 ENTER; 378 ENTER;
416 SAVETMPS; 379 SAVETMPS;
417 PUSHMARK (SP); 380 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 382 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 384 SPAGAIN;
422 FREETMPS; 385 FREETMPS;
423 LEAVE; 386 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 } 387 }
434
435 unblock_sig ();
436} 388}
437 389
438static void aio_grp_dec (aio_req grp) 390static void req_submit (eio_req *req)
439{ 391{
440 --grp->size; 392 eio_submit (req);
441 393
442 /* call feeder, if applicable */ 394 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 395 {
448 block_sig (); 396 dSP;
397 SV *cb = sv_2mortal (on_next_submit);
449 398
450 if (!req_invoke (grp)) 399 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 400
457 req_destroy (grp); 401 PUSHMARK (SP);
458 unblock_sig (); 402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
459 } 404 }
460} 405}
461 406
462static int req_invoke (aio_req req) 407static int req_invoke (eio_req *req)
463{ 408{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 409 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 410 SvREADONLY_off (req->sv2);
468 411
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 412 if (!EIO_CANCELLED (req) && req->callback)
470 { 413 {
414 dSP;
415 static SV *sv_result_cache; /* caches the result integer SV */
416 SV *sv_result;
417
471 ENTER; 418 ENTER;
472 SAVETMPS; 419 SAVETMPS;
473 PUSHMARK (SP); 420 PUSHMARK (SP);
474 EXTEND (SP, 1); 421 EXTEND (SP, 1);
475 422
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
476 switch (req->type) 436 switch (req->type)
477 { 437 {
478 case REQ_READDIR: 438 case EIO_READDIR:
479 { 439 {
480 SV *rv = &PL_sv_undef; 440 SV *rv = &PL_sv_undef;
481 441
482 if (req->result >= 0) 442 if (req->result >= 0)
483 { 443 {
484 int i; 444 int i;
485 char *buf = req->ptr2; 445 char *names = (char *)req->ptr2;
446 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 447 AV *av = newAV ();
487 448
488 av_extend (av, req->result - 1); 449 av_extend (av, req->result - 1);
489 450
490 for (i = 0; i < req->result; ++i) 451 for (i = 0; i < req->result; ++i)
491 { 452 {
492 SV *sv = newSVpv (buf, 0); 453 if (req->int1 & EIO_READDIR_DENTS)
454 {
455 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 456
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
494 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);
495 buf += SvCUR (sv) + 1; 485 names += SvCUR (name) + 1;
486 }
496 } 487 }
497 488
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 489 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 490 }
500 491
501 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))));
502 } 496 }
503 break; 497 break;
504 498
505 case REQ_OPEN: 499 case EIO_OPEN:
506 { 500 {
507 /* convert fd to fh */ 501 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 502 SV *fh = &PL_sv_undef;
509 503
510 if (req->result >= 0) 504 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 506 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 507 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 508 char sym [64];
515 int symlen; 509 int symlen;
516 510
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 511 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 512 gv_init (gv, aio_stash, sym, symlen, 0);
519 513
520 symlen = snprintf ( 514 symlen = snprintf (
521 sym, 515 sym,
522 sizeof (sym), 516 sizeof (sym),
523 "%s&=%d", 517 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 518 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 519 (int)req->result
526 ); 520 );
527 521
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 522 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 523 fh = (SV *)gv;
530 } 524 }
531 525
532 PUSHs (fh); 526 PUSHs (fh);
533 } 527 }
534 break; 528 break;
535 529
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
536 case REQ_GROUP: 560 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 561 req->int1 = 2; /* mark group as finished */
538 562
539 if (req->sv1) 563 if (req->sv1)
540 { 564 {
541 int i; 565 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 569 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 570 PUSHs (*av_fetch (av, i, 0));
547 } 571 }
548 break; 572 break;
549 573
550 case REQ_NOP: 574 case EIO_NOP:
551 case REQ_BUSY: 575 case EIO_BUSY:
552 break; 576 break;
553 577
554 case REQ_READLINK: 578 case EIO_READLINK:
579 case EIO_REALPATH:
555 if (req->result > 0) 580 if (req->result > 0)
556 { 581 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; 582 break;
562 583
563 case REQ_STAT: 584 case EIO_STAT:
564 case REQ_LSTAT: 585 case EIO_LSTAT:
565 case REQ_FSTAT: 586 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 587 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567 PL_laststatval = req->result; 588 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2); 589 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 590 PUSHs (sv_result);
570 break; 591 break;
571 592
572 case REQ_READ: 593 case EIO_READ:
594 {
573 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));
574 *SvEND (req->sv2) = 0; 596 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 597 SvPOK_only (req->sv2);
598 SvSETMAGIC (req->sv2);
599 PUSHs (sv_result);
600 }
576 break; 601 break;
577 602
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
578 default: 608 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 609 PUSHs (sv_result);
580 break; 610 break;
581 } 611 }
582 612
583 errno = req->errorno; 613 errno = req->errorno;
584 614
585 PUTBACK; 615 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 616 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 617 SPAGAIN;
588 618
619 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
620 SvREFCNT_dec (sv_result);
621 else
622 sv_result_cache = sv_result;
623
589 FREETMPS; 624 FREETMPS;
590 LEAVE; 625 LEAVE;
591 626
592 PUTBACK; 627 PUTBACK;
593 } 628 }
594 629
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); 630 return !!SvTRUE (ERRSV);
610} 631}
611 632
612static void req_destroy (aio_req req) 633static void req_destroy (aio_req req)
613{ 634{
614 if (req->self) 635 if (req->self)
… …
619 640
620 SvREFCNT_dec (req->sv1); 641 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 642 SvREFCNT_dec (req->sv2);
622 SvREFCNT_dec (req->callback); 643 SvREFCNT_dec (req->callback);
623 644
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 645 Safefree (req);
628} 646}
629 647
630static void req_cancel_subs (aio_req grp) 648static void req_cancel_subs (aio_req grp)
631{ 649{
632 aio_req sub; 650 aio_req sub;
633 651
634 if (grp->type != REQ_GROUP) 652 if (grp->type != EIO_GROUP)
635 return; 653 return;
636 654
637 SvREFCNT_dec (grp->sv2); 655 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 656 grp->sv2 = 0;
639 657
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 658 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 659}
643 660
644static void req_cancel (aio_req req)
645{
646 req->flags |= FLAG_CANCELLED;
647
648 req_cancel_subs (req);
649}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656
657static void
658create_respipe (void) 661static void create_respipe (void)
659{ 662{
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)) 663 if (s_epipe_renew (&respipe))
669#endif
670 croak ("unable to initialize result pipe"); 664 croak ("IO::AIO: unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788} 665}
789 666
790static void poll_wait (void) 667static void poll_wait (void)
791{ 668{
792 fd_set rfd;
793
794 while (nreqs) 669 while (eio_nreqs ())
795 { 670 {
796 int size; 671 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 672
673 X_LOCK (reslock);
798 size = res_queue.size; 674 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 675 X_UNLOCK (reslock);
800 676
801 if (size) 677 if (size)
802 return; 678 return;
803 679
804 maybe_start_thread (); 680 etp_maybe_start_thread ();
805 681
806 FD_ZERO (&rfd); 682 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 683 }
811} 684}
812 685
813static int poll_cb (void) 686static int poll_cb (void)
814{ 687{
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 (;;) 688 for (;;)
828 { 689 {
829 for (;;) 690 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 691
833 X_LOCK (reslock); 692 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); 693 croak (0);
868 }
869 694
870 count++; 695 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 696 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;
889 697
890 poll_wait (); 698 poll_wait ();
891
892 ++maxreqs;
893 } 699 }
700}
894 701
895 unblock_sig (); 702static void atfork_child (void)
896 return count; 703{
704 create_respipe ();
897} 705}
898 706
899/*****************************************************************************/ 707/*****************************************************************************/
900/* work around various missing functions */
901 708
902#if !HAVE_PREADWRITE 709#if !_POSIX_MAPPED_FILES
903# define pread aio_pread 710# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
904# define pwrite aio_pwrite 711# 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 712#endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079 713
1080 if (res < 0 714#if !_POSIX_MEMORY_PROTECTION
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 715# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1082#if __solaris 716# define PROT_NONE 0
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 717# define PROT_WRITE 0
718# define MAP_PRIVATE 0
719# define MAP_SHARED 0
720# define MAP_FIXED 0
1084#endif 721#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090 722
1091 res = 0; 723#define MMAP_MAGIC PERL_MAGIC_ext
1092 724
1093 while (count) 725static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1094 { 726{
1095 ssize_t cnt; 727 int old_errno = errno;
1096 728 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 729 errno = old_errno;
1098 730
1099 if (cnt <= 0) 731 mg->mg_obj = 0; /* just in case */
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104 732
1105 cnt = write (ofd, aio_buf, cnt); 733 SvREADONLY_off (sv);
1106 734
1107 if (cnt <= 0) 735 if (SvPVX (sv) != mg->mg_ptr)
1108 { 736 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112 737
1113 offset += cnt; 738 SvCUR_set (sv, 0);
1114 res += cnt; 739 SvPVX (sv) = 0;
1115 count -= cnt; 740 SvOK_off (sv);
1116 }
1117 }
1118 741
1119 return res; 742 return 0;
1120} 743}
1121 744
1122/* read a full directory */ 745static MGVTBL mmap_vtbl = {
1123static void scandir_ (aio_req req, worker *self) 746 0, 0, 0, 0, mmap_free
1124{ 747};
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 748
1183/*****************************************************************************/ 749/*****************************************************************************/
1184 750
1185X_THREAD_PROC (aio_proc) 751static SV * get_cb (SV *cb_sv)
1186{ 752{
1187 {//D 753 SvGETMAGIC (cb_sv);
1188 aio_req req; 754 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} 755}
1419 756
1420#define dREQ \ 757#define dREQ \
758 SV *cb_cv; \
1421 aio_req req; \ 759 aio_req req; \
1422 int req_pri = next_pri; \ 760 int req_pri = next_pri; \
1423 next_pri = DEFAULT_PRI + PRI_BIAS; \ 761 next_pri = EIO_PRI_DEFAULT; \
1424 \ 762 \
1425 if (SvOK (callback) && !SvROK (callback)) \ 763 cb_cv = get_cb (callback); \
1426 croak ("callback must be undef or of reference type"); \
1427 \ 764 \
1428 Newz (0, req, 1, aio_cb); \ 765 Newz (0, req, 1, eio_req); \
1429 if (!req) \ 766 if (!req) \
1430 croak ("out of memory during aio_req allocation"); \ 767 croak ("out of memory during eio_req allocation"); \
1431 \ 768 \
1432 req->callback = newSVsv (callback); \ 769 req->callback = SvREFCNT_inc (cb_cv); \
1433 req->pri = req_pri 770 req->pri = req_pri
1434 771
1435#define REQ_SEND \ 772#define REQ_SEND \
773 PUTBACK; \
1436 req_send (req); \ 774 req_submit (req); \
775 SPAGAIN; \
1437 \ 776 \
1438 if (GIMME_V != G_VOID) \ 777 if (GIMME_V != G_VOID) \
1439 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 778 XPUSHs (req_sv (req, aio_req_stash));
1440 779
1441MODULE = IO::AIO PACKAGE = IO::AIO 780MODULE = IO::AIO PACKAGE = IO::AIO
1442 781
1443PROTOTYPES: ENABLE 782PROTOTYPES: ENABLE
1444 783
1445BOOT: 784BOOT:
1446{ 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
1447 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);
1448 906
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 907 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 908 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 909
1462 X_COND_CHECK (reqwait); 910 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 911
1468 create_respipe (); 912 create_respipe ();
1469 913
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 914 if (eio_init (want_poll, done_poll) < 0)
1471} 915 croak ("IO::AIO: unable to initialise eio library");
1472 916
917 /* atfork child called in fifo order, so before eio's handler */
918 X_THREAD_ATFORK (0, 0, atfork_child);
919}
920
1473void 921void
1474max_poll_reqs (int nreqs) 922max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 923 PROTOTYPE: $
1476 CODE: 924 CODE:
1477 max_poll_reqs = nreqs; 925 eio_set_max_poll_reqs (nreqs);
1478 926
1479void 927void
1480max_poll_time (double nseconds) 928max_poll_time (double nseconds)
1481 PROTOTYPE: $ 929 PROTOTYPE: $
1482 CODE: 930 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 931 eio_set_max_poll_time (nseconds);
1484 932
1485void 933void
1486min_parallel (int nthreads) 934min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 935 PROTOTYPE: $
1496 CODE: 936 CODE:
1497 set_max_idle (nthreads); 937 eio_set_min_parallel (nthreads);
1498 938
1499int 939void
1500max_outstanding (int maxreqs) 940max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 941 PROTOTYPE: $
1502 CODE: 942 CODE:
1503 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:
1504 max_outstanding = maxreqs; 961 max_outstanding = maxreqs;
1505 OUTPUT:
1506 RETVAL
1507 962
1508void 963void
1509aio_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)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 965 PPCODE:
1512{ 966{
1513 dREQ; 967 dREQ;
1514 968
1515 req->type = REQ_OPEN; 969 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 970 req->sv1 = newSVsv (pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1); 971 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 972 req->int1 = flags;
1519 req->mode = mode; 973 req->int2 = mode;
1520 974
1521 REQ_SEND; 975 REQ_SEND;
1522} 976}
1523 977
1524void 978void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 979aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 980 ALIAS:
1528 aio_fsync = REQ_FSYNC 981 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 982 aio_fdatasync = EIO_FDATASYNC
1530 PPCODE: 983 PPCODE:
1531{ 984{
985 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 986 dREQ;
1533 987
1534 req->type = ix; 988 req->type = ix;
1535 req->sv1 = newSVsv (fh); 989 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 990 req->int1 = fd;
1537 991
1538 REQ_SEND (req); 992 REQ_SEND (req);
1539} 993}
1540 994
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 995void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 996aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 997 PPCODE:
1553{ 998{
999 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1000 dREQ;
1555 1001
1556 req->type = REQ_CLOSE; 1002 req->type = EIO_SYNC_FILE_RANGE;
1003 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 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;
1558 1053
1559 REQ_SEND (req); 1054 REQ_SEND (req);
1560} 1055}
1561 1056
1562void 1057void
1563aio_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)
1564 ALIAS: 1059 ALIAS:
1565 aio_read = REQ_READ 1060 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1061 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1062 PPCODE:
1569{ 1063{
1570 STRLEN svlen; 1064 STRLEN svlen;
1065 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1066 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1067 UV len = SvUV (length);
1573 1068
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1069 if (dataoffset < 0)
1578 dataoffset += svlen; 1070 dataoffset += svlen;
1579 1071
1580 if (dataoffset < 0 || dataoffset > svlen) 1072 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1073 croak ("dataoffset outside of data scalar");
1582 1074
1583 if (ix == REQ_WRITE) 1075 if (ix == EIO_WRITE)
1584 { 1076 {
1585 /* write: check length and adjust. */ 1077 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1078 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1079 len = svlen - dataoffset;
1588 } 1080 }
1589 else 1081 else
1590 { 1082 {
1591 /* read: grow scalar as necessary */ 1083 /* read: check type and grow scalar as necessary */
1084 SvUPGRADE (data, SVt_PV);
1592 svptr = SvGROW (data, len + dataoffset + 1); 1085 svptr = SvGROW (data, len + dataoffset + 1);
1593 } 1086 }
1594 1087
1595 if (len < 0)
1596 croak ("length must not be negative");
1597
1598 { 1088 {
1599 dREQ; 1089 dREQ;
1600 1090
1601 req->type = ix; 1091 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1092 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1093 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1094 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1095 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1096 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1097 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1098 req->stroffset = dataoffset;
1610 1099
1611 if (!SvREADONLY (data)) 1100 if (!SvREADONLY (data))
1612 { 1101 {
1613 SvREADONLY_on (data); 1102 SvREADONLY_on (data);
… …
1618 } 1107 }
1619} 1108}
1620 1109
1621void 1110void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1111aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1623 PROTOTYPE: $$;$ 1112 ALIAS:
1113 aio_readlink = EIO_READLINK
1114 aio_realpath = EIO_REALPATH
1624 PPCODE: 1115 PPCODE:
1625{ 1116{
1626 SV *data; 1117 SV *data;
1627 dREQ; 1118 dREQ;
1628 1119
1629 data = newSV (NAME_MAX);
1630 SvPOK_on (data);
1631
1632 req->type = REQ_READLINK; 1120 req->type = ix;
1633 req->sv1 = newSVsv (path); 1121 req->sv1 = newSVsv (path);
1634 req->ptr2 = SvPVbyte_nolen (req->sv1); 1122 req->ptr1 = SvPVbyte_nolen (req->sv1);
1635 req->sv2 = data;
1636 req->ptr1 = SvPVbyte_nolen (data);
1637 1123
1638 REQ_SEND; 1124 REQ_SEND;
1639} 1125}
1640 1126
1641void 1127void
1642aio_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)
1643 PROTOTYPE: $$$$;$
1644 PPCODE: 1129 PPCODE:
1645{ 1130{
1131 int ifd = s_fileno_croak (in_fh , 0);
1132 int ofd = s_fileno_croak (out_fh, 1);
1646 dREQ; 1133 dREQ;
1647 1134
1648 req->type = REQ_SENDFILE; 1135 req->type = EIO_SENDFILE;
1649 req->sv1 = newSVsv (out_fh); 1136 req->sv1 = newSVsv (out_fh);
1650 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1137 req->int1 = ofd;
1651 req->sv2 = newSVsv (in_fh); 1138 req->sv2 = newSVsv (in_fh);
1652 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1139 req->int2 = ifd;
1653 req->offs = SvVAL64 (in_offset); 1140 req->offs = in_offset;
1654 req->size = length; 1141 req->size = length;
1655 1142
1656 REQ_SEND; 1143 REQ_SEND;
1657} 1144}
1658 1145
1659void 1146void
1660aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1147aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$;$
1662 PPCODE: 1148 PPCODE:
1663{ 1149{
1150 int fd = s_fileno_croak (fh, 0);
1664 dREQ; 1151 dREQ;
1665 1152
1666 req->type = REQ_READAHEAD; 1153 req->type = EIO_READAHEAD;
1667 req->sv1 = newSVsv (fh); 1154 req->sv1 = newSVsv (fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1155 req->int1 = fd;
1669 req->offs = SvVAL64 (offset); 1156 req->offs = offset;
1670 req->size = length; 1157 req->size = length;
1671 1158
1672 REQ_SEND; 1159 REQ_SEND;
1673} 1160}
1674 1161
1675void 1162void
1676aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1163aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1677 ALIAS: 1164 ALIAS:
1678 aio_stat = REQ_STAT 1165 aio_stat = EIO_STAT
1679 aio_lstat = REQ_LSTAT 1166 aio_lstat = EIO_LSTAT
1167 aio_statvfs = EIO_STATVFS
1680 PPCODE: 1168 PPCODE:
1681{ 1169{
1682 dREQ; 1170 dREQ;
1683 1171
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); 1172 req->sv1 = newSVsv (fh_or_path);
1693 1173
1694 if (SvPOK (fh_or_path)) 1174 if (SvPOK (req->sv1))
1695 { 1175 {
1696 req->type = ix; 1176 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1); 1177 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 } 1178 }
1699 else 1179 else
1700 { 1180 {
1701 req->type = REQ_FSTAT; 1181 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1182 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1703 } 1183 }
1704 1184
1705 REQ_SEND; 1185 REQ_SEND;
1706} 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
1707 1203
1708void 1204void
1709aio_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)
1710 PPCODE: 1206 PPCODE:
1711{ 1207{
… …
1713 1209
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1210 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1211 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1212 req->sv1 = newSVsv (fh_or_path);
1717 1213
1718 if (SvPOK (fh_or_path)) 1214 if (SvPOK (req->sv1))
1719 { 1215 {
1720 req->type = REQ_UTIME; 1216 req->type = EIO_UTIME;
1721 req->ptr1 = SvPVbyte_nolen (req->sv1); 1217 req->ptr1 = SvPVbyte_nolen (req->sv1);
1722 } 1218 }
1723 else 1219 else
1724 { 1220 {
1725 req->type = REQ_FUTIME; 1221 req->type = EIO_FUTIME;
1726 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1222 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1727 } 1223 }
1728 1224
1729 REQ_SEND; 1225 REQ_SEND;
1730} 1226}
… …
1736 dREQ; 1232 dREQ;
1737 1233
1738 req->sv1 = newSVsv (fh_or_path); 1234 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1235 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1236
1741 if (SvPOK (fh_or_path)) 1237 if (SvPOK (req->sv1))
1742 { 1238 {
1743 req->type = REQ_TRUNCATE; 1239 req->type = EIO_TRUNCATE;
1744 req->ptr1 = SvPVbyte_nolen (req->sv1); 1240 req->ptr1 = SvPVbyte_nolen (req->sv1);
1745 } 1241 }
1746 else 1242 else
1747 { 1243 {
1748 req->type = REQ_FTRUNCATE; 1244 req->type = EIO_FTRUNCATE;
1749 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1245 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1750 } 1246 }
1751 1247
1752 REQ_SEND; 1248 REQ_SEND;
1753} 1249}
1754 1250
1755void 1251void
1756aio_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
1757 PPCODE: 1256 PPCODE:
1758{ 1257{
1759 dREQ; 1258 dREQ;
1760 1259
1761 req->mode = mode; 1260 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1261 req->sv1 = newSVsv (fh_or_path);
1763 1262
1764 if (SvPOK (fh_or_path)) 1263 if (SvPOK (req->sv1))
1765 { 1264 {
1766 req->type = REQ_CHMOD; 1265 req->type = ix;
1767 req->ptr1 = SvPVbyte_nolen (req->sv1); 1266 req->ptr1 = SvPVbyte_nolen (req->sv1);
1768 } 1267 }
1769 else 1268 else
1770 { 1269 {
1771 req->type = REQ_FCHMOD; 1270 req->type = EIO_FCHMOD;
1772 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1271 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1773 } 1272 }
1774 1273
1775 REQ_SEND; 1274 REQ_SEND;
1776} 1275}
… …
1783 1282
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1283 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1284 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1285 req->sv1 = newSVsv (fh_or_path);
1787 1286
1788 if (SvPOK (fh_or_path)) 1287 if (SvPOK (req->sv1))
1789 { 1288 {
1790 req->type = REQ_CHOWN; 1289 req->type = EIO_CHOWN;
1791 req->ptr1 = SvPVbyte_nolen (req->sv1); 1290 req->ptr1 = SvPVbyte_nolen (req->sv1);
1792 } 1291 }
1793 else 1292 else
1794 { 1293 {
1795 req->type = REQ_FCHOWN; 1294 req->type = EIO_FCHOWN;
1796 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1295 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1797 } 1296 }
1798 1297
1799 REQ_SEND; 1298 REQ_SEND;
1800} 1299}
1801 1300
1802void 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
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1319aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1804 ALIAS: 1320 ALIAS:
1805 aio_unlink = REQ_UNLINK 1321 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1322 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1323 aio_readdir = EIO_READDIR
1808 PPCODE: 1324 PPCODE:
1809{ 1325{
1810 dREQ; 1326 dREQ;
1811 1327
1812 req->type = ix; 1328 req->type = ix;
… …
1815 1331
1816 REQ_SEND; 1332 REQ_SEND;
1817} 1333}
1818 1334
1819void 1335void
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) 1336aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1835 ALIAS: 1337 ALIAS:
1836 aio_link = REQ_LINK 1338 aio_link = EIO_LINK
1837 aio_symlink = REQ_SYMLINK 1339 aio_symlink = EIO_SYMLINK
1838 aio_rename = REQ_RENAME 1340 aio_rename = EIO_RENAME
1839 PPCODE: 1341 PPCODE:
1840{ 1342{
1841 dREQ; 1343 dREQ;
1842 1344
1843 req->type = ix; 1345 req->type = ix;
1844 req->sv2 = newSVsv (oldpath); 1346 req->sv1 = newSVsv (oldpath);
1347 req->ptr1 = SvPVbyte_nolen (req->sv1);
1348 req->sv2 = newSVsv (newpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2); 1349 req->ptr2 = SvPVbyte_nolen (req->sv2);
1846 req->sv1 = newSVsv (newpath);
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1350
1849 REQ_SEND; 1351 REQ_SEND;
1850} 1352}
1851 1353
1852void 1354void
1853aio_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)
1854 PPCODE: 1356 PPCODE:
1855{ 1357{
1856 dREQ; 1358 dREQ;
1857 1359
1858 req->type = REQ_MKNOD; 1360 req->type = EIO_MKNOD;
1859 req->sv1 = newSVsv (pathname); 1361 req->sv1 = newSVsv (pathname);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1); 1362 req->ptr1 = SvPVbyte_nolen (req->sv1);
1861 req->mode = (mode_t)mode; 1363 req->int2 = (mode_t)mode;
1862 req->offs = dev; 1364 req->offs = dev;
1863 1365
1864 REQ_SEND; 1366 REQ_SEND;
1865} 1367}
1866 1368
1867void 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
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1444aio_busy (double delay, SV *callback=&PL_sv_undef)
1869 PPCODE: 1445 PPCODE:
1870{ 1446{
1871 dREQ; 1447 dREQ;
1872 1448
1873 req->type = REQ_BUSY; 1449 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1450 req->nv1 = delay < 0. ? 0. : delay;
1875 1451
1876 REQ_SEND; 1452 REQ_SEND;
1877} 1453}
1878 1454
1879void 1455void
1880aio_group (SV *callback=&PL_sv_undef) 1456aio_group (SV *callback=&PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1457 PPCODE:
1883{ 1458{
1884 dREQ; 1459 dREQ;
1885 1460
1886 req->type = REQ_GROUP; 1461 req->type = EIO_GROUP;
1887 1462
1888 req_send (req); 1463 req_submit (req);
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1464 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1465}
1891 1466
1892void 1467void
1893aio_nop (SV *callback=&PL_sv_undef) 1468aio_nop (SV *callback=&PL_sv_undef)
1894 ALIAS: 1469 ALIAS:
1895 aio_nop = REQ_NOP 1470 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1471 aio_sync = EIO_SYNC
1897 PPCODE: 1472 PPCODE:
1898{ 1473{
1899 dREQ; 1474 dREQ;
1900 1475
1901 req->type = ix; 1476 req->type = ix;
… …
1903 REQ_SEND; 1478 REQ_SEND;
1904} 1479}
1905 1480
1906int 1481int
1907aioreq_pri (int pri = 0) 1482aioreq_pri (int pri = 0)
1908 PROTOTYPE: ;$
1909 CODE: 1483 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 1484 RETVAL = next_pri;
1911 if (items > 0) 1485 if (items > 0)
1912 { 1486 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 1487 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 1488 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 1489 next_pri = pri;
1916 } 1490 }
1917 OUTPUT: 1491 OUTPUT:
1918 RETVAL 1492 RETVAL
1919 1493
1920void 1494void
1921aioreq_nice (int nice = 0) 1495aioreq_nice (int nice = 0)
1922 CODE: 1496 CODE:
1923 nice = next_pri - nice; 1497 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 1498 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 1499 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 1500 next_pri = nice;
1927 1501
1928void 1502void
1929flush () 1503flush ()
1930 PROTOTYPE:
1931 CODE: 1504 CODE:
1932 while (nreqs) 1505 while (eio_nreqs ())
1933 { 1506 {
1934 poll_wait (); 1507 poll_wait ();
1935 poll_cb (); 1508 poll_cb ();
1936 } 1509 }
1937 1510
1938int 1511int
1939poll() 1512poll ()
1940 PROTOTYPE:
1941 CODE: 1513 CODE:
1942 poll_wait (); 1514 poll_wait ();
1943 RETVAL = poll_cb (); 1515 RETVAL = poll_cb ();
1944 OUTPUT: 1516 OUTPUT:
1945 RETVAL 1517 RETVAL
1946 1518
1947int 1519int
1948poll_fileno() 1520poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 1521 CODE:
1951 RETVAL = respipe [0]; 1522 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 1523 OUTPUT:
1953 RETVAL 1524 RETVAL
1954 1525
1955int 1526int
1956poll_cb(...) 1527poll_cb (...)
1957 PROTOTYPE: 1528 PROTOTYPE:
1958 CODE: 1529 CODE:
1959 RETVAL = poll_cb (); 1530 RETVAL = poll_cb ();
1960 OUTPUT: 1531 OUTPUT:
1961 RETVAL 1532 RETVAL
1962 1533
1963void 1534void
1964poll_wait() 1535poll_wait ()
1965 PROTOTYPE:
1966 CODE: 1536 CODE:
1967 poll_wait (); 1537 poll_wait ();
1968 1538
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 unblock_sig ();
1998
1999 if (SvTRUE (ERRSV))
2000 croak (0);
2001
2002 XSRETURN (count);
2003}
2004
2005int 1539int
2006nreqs() 1540nreqs ()
2007 PROTOTYPE:
2008 CODE: 1541 CODE:
2009 RETVAL = nreqs; 1542 RETVAL = eio_nreqs ();
2010 OUTPUT: 1543 OUTPUT:
2011 RETVAL 1544 RETVAL
2012 1545
2013int 1546int
2014nready() 1547nready ()
2015 PROTOTYPE:
2016 CODE: 1548 CODE:
2017 RETVAL = get_nready (); 1549 RETVAL = eio_nready ();
2018 OUTPUT: 1550 OUTPUT:
2019 RETVAL 1551 RETVAL
2020 1552
2021int 1553int
2022npending() 1554npending ()
2023 PROTOTYPE:
2024 CODE: 1555 CODE:
2025 RETVAL = get_npending (); 1556 RETVAL = eio_npending ();
2026 OUTPUT: 1557 OUTPUT:
2027 RETVAL 1558 RETVAL
2028 1559
2029int 1560int
2030nthreads() 1561nthreads ()
2031 PROTOTYPE:
2032 CODE: 1562 CODE:
2033 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1563 RETVAL = eio_nthreads ();
2034 RETVAL = started;
2035 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2036 OUTPUT: 1564 OUTPUT:
2037 RETVAL 1565 RETVAL
2038 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
2039PROTOTYPES: DISABLE 1694PROTOTYPES: DISABLE
2040 1695
2041MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1696MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2042 1697
2043void 1698void
2044cancel (aio_req_ornot req) 1699cancel (aio_req_ornot req)
2045 CODE: 1700 CODE:
2046 req_cancel (req); 1701 eio_cancel (req);
2047 1702
2048void 1703void
2049cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1704cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2050 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
2051 SvREFCNT_dec (req->callback); 1714 SvREFCNT_dec (req->callback);
2052 req->callback = newSVsv (callback); 1715 req->callback = SvREFCNT_inc (cb_cv);
1716 }
1717}
2053 1718
2054MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1719MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2055 1720
2056void 1721void
2057add (aio_req grp, ...) 1722add (aio_req grp, ...)
2058 PPCODE: 1723 PPCODE:
2059{ 1724{
2060 int i; 1725 int i;
2061 aio_req req;
2062
2063 if (main_sig && !block_sig_level)
2064 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2065 1726
2066 if (grp->int1 == 2) 1727 if (grp->int1 == 2)
2067 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");
2068 1729
2069 for (i = 1; i < items; ++i ) 1730 for (i = 1; i < items; ++i )
2070 { 1731 {
1732 aio_req req;
1733
2071 if (GIMME_V != G_VOID) 1734 if (GIMME_V != G_VOID)
2072 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1735 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2073 1736
2074 req = SvAIO_REQ (ST (i)); 1737 req = SvAIO_REQ (ST (i));
2075 1738
2076 if (req) 1739 if (req)
2077 { 1740 eio_grp_add (grp, req);
2078 ++grp->size;
2079 req->grp = grp;
2080
2081 req->grp_prev = 0;
2082 req->grp_next = grp->grp_first;
2083
2084 if (grp->grp_first)
2085 grp->grp_first->grp_prev = req;
2086
2087 grp->grp_first = req;
2088 }
2089 } 1741 }
2090} 1742}
2091 1743
2092void 1744void
2093cancel_subs (aio_req_ornot req) 1745cancel_subs (aio_req_ornot req)
… …
2102 AV *av; 1754 AV *av;
2103 1755
2104 grp->errorno = errno; 1756 grp->errorno = errno;
2105 1757
2106 av = newAV (); 1758 av = newAV ();
1759 av_extend (av, items - 1);
2107 1760
2108 for (i = 1; i < items; ++i ) 1761 for (i = 1; i < items; ++i )
2109 av_push (av, newSVsv (ST (i))); 1762 av_push (av, newSVsv (ST (i)));
2110 1763
2111 SvREFCNT_dec (grp->sv1); 1764 SvREFCNT_dec (grp->sv1);
… …
2118 grp->errorno = errorno; 1771 grp->errorno = errorno;
2119 1772
2120void 1773void
2121limit (aio_req grp, int limit) 1774limit (aio_req grp, int limit)
2122 CODE: 1775 CODE:
2123 grp->int2 = limit; 1776 eio_grp_limit (grp, limit);
2124 aio_grp_feed (grp);
2125 1777
2126void 1778void
2127feed (aio_req grp, SV *callback=&PL_sv_undef) 1779feed (aio_req grp, SV *callback=&PL_sv_undef)
2128 CODE: 1780 CODE:
2129{ 1781{
2130 SvREFCNT_dec (grp->sv2); 1782 SvREFCNT_dec (grp->sv2);
2131 grp->sv2 = newSVsv (callback); 1783 grp->sv2 = newSVsv (callback);
1784 grp->feed = aio_grp_feed;
2132 1785
2133 if (grp->int2 <= 0) 1786 if (grp->int2 <= 0)
2134 grp->int2 = 2; 1787 grp->int2 = 2;
2135 1788
2136 aio_grp_feed (grp); 1789 eio_grp_limit (grp, grp->int2);
2137} 1790}
2138 1791

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