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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.100 by root, Fri Jun 1 06:00:40 2007 UTC vs.
Revision 1.203 by root, Thu Sep 29 23:06:24 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 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
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
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
67#else
68
69 #include <sys/time.h>
70 #include <sys/select.h>
71 #include <unistd.h>
23#include <utime.h> 72 #include <utime.h>
73 #include <signal.h>
24 74
25#if HAVE_SENDFILE 75#endif
26# if __linux 76
27# include <sys/sendfile.h> 77#define EIO_STRUCT_STAT Stat_t
28# elif __freebsd 78
29# include <sys/socket.h> 79/* use NV for 32 bit perls as it allows larger offsets */
30# include <sys/uio.h> 80#if IVSIZE >= 8
31# elif __hpux 81# define VAL64 IV
32# include <sys/socket.h> 82# define SvVAL64 SvIV
33# elif __solaris /* not yet */ 83# define newSVval64 newSViv
34# include <sys/sendfile.h> 84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
35# else 295# else
36# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 297# endif
38#endif 298#endif
39 299#ifndef MAP_HUGETLB
40/* number of seconds after which idle threads exit */ 300# define MAP_HUGETLB 0
41#define IDLE_TIMEOUT 10
42
43/* used for struct dirent, AIX doesn't provide it */
44#ifndef NAME_MAX
45# define NAME_MAX 4096
46#endif 301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
47 314
48/* buffer size for various temporary buffers */ 315#ifndef makedev
49#define AIO_BUFSIZE 65536 316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
50 324
51#define dBUF \ 325#ifndef PAGESIZE
52 char *aio_buf; \ 326# define PAGESIZE sysconf (_SC_PAGESIZE)
53 LOCK (wrklock); \ 327#endif
54 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
55 UNLOCK (wrklock); \
56 if (!aio_buf) \
57 return -1;
58
59typedef SV SV8; /* byte-sv, used for argument-checking */
60 328
61enum { 329enum {
62 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
63 REQ_OPEN, REQ_CLOSE,
64 REQ_READ, REQ_WRITE, REQ_READAHEAD,
65 REQ_SENDFILE,
66 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
67 REQ_UTIME, REQ_FUTIME, /* must be consecutive */
68 REQ_CHMOD, REQ_FCHMOD, /* must be consecutive */
69 REQ_CHOWN, REQ_FCHOWN, /* must be consecutive */
70 REQ_FSYNC, REQ_FDATASYNC,
71 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
72 REQ_MKNOD, REQ_READDIR,
73 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
74 REQ_GROUP, REQ_NOP,
75 REQ_BUSY,
76}; 331};
77 332
78#define AIO_REQ_KLASS "IO::AIO::REQ"
79#define AIO_GRP_KLASS "IO::AIO::GRP"
80
81typedef struct aio_cb
82{
83 struct aio_cb *volatile next;
84
85 SV *callback;
86 SV *sv1, *sv2;
87 void *ptr1, *ptr2;
88 off_t offs;
89 size_t size;
90 ssize_t result;
91 double nv1, nv2;
92
93 STRLEN stroffset;
94 int type;
95 int int1, int2, int3;
96 int errorno;
97 mode_t mode; /* open */
98
99 unsigned char flags;
100 unsigned char pri;
101
102 SV *self; /* the perl counterpart of this request, if any */
103 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
104} aio_cb;
105
106enum {
107 FLAG_CANCELLED = 0x01, /* request was cancelled */
108 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
109 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
110};
111
112typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
113typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
114 336
115enum { 337static SV *on_next_submit;
116 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
117 PRI_MAX = 4, 339static int max_outstanding;
118 340
119 DEFAULT_PRI = 0, 341static s_epipe respipe;
120 PRI_BIAS = -PRI_MIN,
121 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
122};
123 342
124#define AIO_TICKS ((1000000 + 1023) >> 10)
125
126static unsigned int max_poll_time = 0;
127static unsigned int max_poll_reqs = 0;
128
129/* calculcate time difference in ~1/AIO_TICKS of a second */
130static int tvdiff (struct timeval *tv1, struct timeval *tv2)
131{
132 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
133 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
134}
135
136static thread_t main_tid;
137static int main_sig;
138static int block_sig_level;
139
140void block_sig ()
141{
142 sigset_t ss;
143
144 if (block_sig_level++)
145 return;
146
147 if (!main_sig)
148 return;
149
150 sigemptyset (&ss);
151 sigaddset (&ss, main_sig);
152 pthread_sigmask (SIG_BLOCK, &ss, 0);
153}
154
155void unblock_sig ()
156{
157 sigset_t ss;
158
159 if (--block_sig_level)
160 return;
161
162 if (!main_sig)
163 return;
164
165 sigemptyset (&ss);
166 sigaddset (&ss, main_sig);
167 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
168}
169
170static int next_pri = DEFAULT_PRI + PRI_BIAS;
171
172static unsigned int started, idle, wanted;
173
174/* worker threads management */
175static mutex_t wrklock = MUTEX_INIT;
176
177typedef struct worker {
178 /* locked by wrklock */
179 struct worker *prev, *next;
180
181 thread_t tid;
182
183 /* locked by reslock, reqlock or wrklock */
184 aio_req req; /* currently processed request */
185 void *dbuf;
186 DIR *dirp;
187} worker;
188
189static worker wrk_first = { &wrk_first, &wrk_first, 0 };
190
191static void worker_clear (worker *wrk)
192{
193 if (wrk->dirp)
194 {
195 closedir (wrk->dirp);
196 wrk->dirp = 0;
197 }
198
199 if (wrk->dbuf)
200 {
201 free (wrk->dbuf);
202 wrk->dbuf = 0;
203 }
204}
205
206static void worker_free (worker *wrk)
207{
208 wrk->next->prev = wrk->prev;
209 wrk->prev->next = wrk->next;
210
211 free (wrk);
212}
213
214static volatile unsigned int nreqs, nready, npending;
215static volatile unsigned int max_idle = 4;
216static volatile unsigned int max_outstanding = 0xffffffff;
217static int respipe [2];
218
219static mutex_t reslock = MUTEX_INIT;
220static mutex_t reqlock = MUTEX_INIT;
221static cond_t reqwait = COND_INIT;
222
223#if WORDACCESS_UNSAFE
224
225static unsigned int get_nready ()
226{
227 unsigned int retval;
228
229 LOCK (reqlock);
230 retval = nready;
231 UNLOCK (reqlock);
232
233 return retval;
234}
235
236static unsigned int get_npending ()
237{
238 unsigned int retval;
239
240 LOCK (reslock);
241 retval = npending;
242 UNLOCK (reslock);
243
244 return retval;
245}
246
247static unsigned int get_nthreads ()
248{
249 unsigned int retval;
250
251 LOCK (wrklock);
252 retval = started;
253 UNLOCK (wrklock);
254
255 return retval;
256}
257
258#else
259
260# define get_nready() nready
261# define get_npending() npending
262# define get_nthreads() started
263
264#endif
265
266/*
267 * a somewhat faster data structure might be nice, but
268 * with 8 priorities this actually needs <20 insns
269 * per shift, the most expensive operation.
270 */
271typedef struct {
272 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
273 int size;
274} reqq;
275
276static reqq req_queue;
277static reqq res_queue;
278
279int reqq_push (reqq *q, aio_req req)
280{
281 int pri = req->pri;
282 req->next = 0;
283
284 if (q->qe[pri])
285 {
286 q->qe[pri]->next = req;
287 q->qe[pri] = req;
288 }
289 else
290 q->qe[pri] = q->qs[pri] = req;
291
292 return q->size++;
293}
294
295aio_req reqq_shift (reqq *q)
296{
297 int pri;
298
299 if (!q->size)
300 return 0;
301
302 --q->size;
303
304 for (pri = NUM_PRI; pri--; )
305 {
306 aio_req req = q->qs[pri];
307
308 if (req)
309 {
310 if (!(q->qs[pri] = req->next))
311 q->qe[pri] = 0;
312
313 return req;
314 }
315 }
316
317 abort ();
318}
319
320static int poll_cb ();
321static int req_invoke (aio_req req);
322static void req_free (aio_req req); 343static void req_destroy (aio_req req);
323static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
324 345
346static void
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
325/* must be called at most once */ 360/* must be called at most once */
326static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
327{ 363{
328 if (!req->self) 364 if (!req->self)
329 { 365 {
330 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
331 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
332 } 368 }
333 369
334 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
335} 371}
336 372
337static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
338{ 381{
339 MAGIC *mg; 382 MAGIC *mg;
340 383
341 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 384 if (!SvROK (sv)
385 || (SvSTASH (SvRV (sv)) != aio_grp_stash
386 && SvSTASH (SvRV (sv)) != aio_req_stash
387 && !sv_derived_from (sv, "IO::AIO::REQ")))
342 croak ("object of class " AIO_REQ_KLASS " expected"); 388 croak ("object of class IO::AIO::REQ expected");
343 389
344 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
345 391
346 return mg ? (aio_req)mg->mg_ptr : 0; 392 return mg ? (aio_req)mg->mg_ptr : 0;
347} 393}
348 394
395static aio_wd
396SvAIO_WD (SV *sv)
397{
398 if (!SvROK (sv)
399 || SvSTASH (SvRV (sv)) != aio_wd_stash
400 || SvTYPE (SvRV (sv)) != SVt_PVMG)
401 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402
403 return (aio_wd)(long)SvIVX (SvRV (sv));
404}
405
406static void
349static void aio_grp_feed (aio_req grp) 407aio_grp_feed (aio_req grp)
350{ 408{
351 block_sig (); 409 if (grp->sv2 && SvOK (grp->sv2))
352
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354 { 410 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 411 dSP;
360 412
361 ENTER; 413 ENTER;
362 SAVETMPS; 414 SAVETMPS;
363 PUSHMARK (SP); 415 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 417 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 419 SPAGAIN;
368 FREETMPS; 420 FREETMPS;
369 LEAVE; 421 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 422 }
380
381 unblock_sig ();
382} 423}
383 424
384static void aio_grp_dec (aio_req grp) 425static void
426req_submit (eio_req *req)
385{ 427{
386 --grp->size; 428 eio_submit (req);
387 429
388 /* call feeder, if applicable */ 430 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 431 {
394 block_sig (); 432 dSP;
433 SV *cb = sv_2mortal (on_next_submit);
395 434
396 if (!req_invoke (grp)) 435 on_next_submit = 0;
397 {
398 req_free (grp);
399 unblock_sig ();
400 croak (0);
401 }
402 436
403 req_free (grp); 437 PUSHMARK (SP);
404 unblock_sig (); 438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
405 } 440 }
406} 441}
407 442
443static int
408static int req_invoke (aio_req req) 444req_invoke (eio_req *req)
409{ 445{
410 dSP;
411
412 if (req->flags & FLAG_SV2_RO_OFF) 446 if (req->flags & FLAG_SV2_RO_OFF)
413 SvREADONLY_off (req->sv2); 447 SvREADONLY_off (req->sv2);
414 448
415 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 449 if (!EIO_CANCELLED (req) && req->callback)
416 { 450 {
451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
454
417 ENTER; 455 ENTER;
418 SAVETMPS; 456 SAVETMPS;
419 PUSHMARK (SP); 457 PUSHMARK (SP);
420 EXTEND (SP, 1); 458 EXTEND (SP, 1);
421 459
460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
462 {
463 sv_result = sv_result_cache; sv_result_cache = 0;
464 SvIV_set (sv_result, req->result);
465 SvIOK_only (sv_result);
466 }
467 else
468 {
469 sv_result = newSViv (req->result);
470 SvREADONLY_on (sv_result);
471 }
472
422 switch (req->type) 473 switch (req->type)
423 { 474 {
475 case EIO_WD_OPEN:
476 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
424 case REQ_READDIR: 479 case EIO_READDIR:
425 { 480 {
426 SV *rv = &PL_sv_undef; 481 SV *rv = &PL_sv_undef;
427 482
428 if (req->result >= 0) 483 if (req->result >= 0)
429 { 484 {
430 int i; 485 int i;
431 char *buf = req->ptr2; 486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
432 AV *av = newAV (); 488 AV *av = newAV ();
433 489
434 av_extend (av, req->result - 1); 490 av_extend (av, req->result - 1);
435 491
436 for (i = 0; i < req->result; ++i) 492 for (i = 0; i < req->result; ++i)
437 { 493 {
438 SV *sv = newSVpv (buf, 0); 494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
439 497
498 if (req->int1 & EIO_READDIR_CUSTOM2)
499 {
500 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
501 AV *avent = newAV ();
502
503 av_extend (avent, 2);
504
505 if (!sv_type [ent->type])
506 {
507 sv_type [ent->type] = newSViv (ent->type);
508 SvREADONLY_on (sv_type [ent->type]);
509 }
510
511 av_store (avent, 0, namesv);
512 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
513 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
514
515 av_store (av, i, newRV_noinc ((SV *)avent));
516 }
517 else
440 av_store (av, i, sv); 518 av_store (av, i, namesv);
519
520 ++ent;
521 }
522 else
523 {
524 SV *name = newSVpv (names, 0);
525 av_store (av, i, name);
441 buf += SvCUR (sv) + 1; 526 names += SvCUR (name) + 1;
527 }
442 } 528 }
443 529
444 rv = sv_2mortal (newRV_noinc ((SV *)av)); 530 rv = sv_2mortal (newRV_noinc ((SV *)av));
445 } 531 }
446 532
447 PUSHs (rv); 533 PUSHs (rv);
534
535 if (req->int1 & EIO_READDIR_CUSTOM1)
536 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
448 } 537 }
449 break; 538 break;
450 539
451 case REQ_OPEN: 540 case EIO_OPEN:
452 { 541 {
453 /* convert fd to fh */ 542 /* convert fd to fh */
454 SV *fh; 543 SV *fh = &PL_sv_undef;
455 544
456 PUSHs (sv_2mortal (newSViv (req->result))); 545 if (req->result >= 0)
457 PUTBACK; 546 {
458 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 547 GV *gv = (GV *)sv_newmortal ();
459 SPAGAIN; 548 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
549 char sym [64];
550 int symlen;
551
552 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
553 gv_init (gv, aio_stash, sym, symlen, 0);
460 554
461 fh = POPs; 555 symlen = snprintf (
462 PUSHMARK (SP); 556 sym,
557 sizeof (sym),
558 "%s&=%d",
559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560 (int)req->result
561 );
562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
463 XPUSHs (fh); 567 PUSHs (fh);
464 } 568 }
465 break; 569 break;
466 570
571 case EIO_STATVFS:
572 case EIO_FSTATVFS:
573 {
574 SV *rv = &PL_sv_undef;
575
576#ifndef _WIN32
577 if (req->result >= 0)
578 {
579 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580 HV *hv = newHV ();
581
582 rv = sv_2mortal (newRV_noinc ((SV *)hv));
583
584 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
586 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
587 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
593 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595 }
596#endif
597
598 PUSHs (rv);
599 }
600
601 break;
602
467 case REQ_GROUP: 603 case EIO_GROUP:
468 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
469 605
470 if (req->sv1) 606 if (req->sv1)
471 { 607 {
472 int i; 608 int i;
… …
476 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
477 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
478 } 614 }
479 break; 615 break;
480 616
481 case REQ_NOP: 617 case EIO_NOP:
482 case REQ_BUSY: 618 case EIO_BUSY:
483 break; 619 break;
484 620
485 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
486 if (req->result > 0) 623 if (req->result > 0)
487 { 624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
488 SvCUR_set (req->sv2, req->result);
489 *SvEND (req->sv2) = 0;
490 PUSHs (req->sv2);
491 }
492 break; 625 break;
493 626
494 case REQ_STAT: 627 case EIO_STAT:
495 case REQ_LSTAT: 628 case EIO_LSTAT:
496 case REQ_FSTAT: 629 case EIO_FSTAT:
497 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
498 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
499 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
500 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
501 break; 637 break;
502 638
503 case REQ_READ: 639 case EIO_READ:
640 {
504 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
505 *SvEND (req->sv2) = 0; 642 *SvEND (req->sv2) = 0;
506 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
507 break; 647 break;
508 648
649 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650 if (req->result > 0)
651 SvIV_set (sv_result, 0);
652 /* FALLTHROUGH */
653
509 default: 654 default:
510 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
511 break; 656 break;
512 } 657 }
513 658
514 errno = req->errorno; 659 errno = req->errorno;
515 660
516 PUTBACK; 661 PUTBACK;
517 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
518 SPAGAIN; 663 SPAGAIN;
664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
519 669
520 FREETMPS; 670 FREETMPS;
521 LEAVE; 671 LEAVE;
672
673 PUTBACK;
522 } 674 }
523 675
524 if (req->grp)
525 {
526 aio_req grp = req->grp;
527
528 /* unlink request */
529 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
530 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
531
532 if (grp->grp_first == req)
533 grp->grp_first = req->grp_next;
534
535 aio_grp_dec (grp);
536 }
537
538 return !SvTRUE (ERRSV); 676 return !!SvTRUE (ERRSV);
539} 677}
540 678
541static void req_free (aio_req req) 679static void
680req_destroy (aio_req req)
542{ 681{
543 if (req->self) 682 if (req->self)
544 { 683 {
545 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
546 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
547 } 686 }
548 687
549 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
550 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
551 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
552 693
553 if (req->flags & FLAG_PTR2_FREE)
554 free (req->ptr2);
555
556 Safefree (req); 694 Safefree (req);
557} 695}
558 696
697static void
559static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
560{ 699{
561 aio_req sub;
562
563 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
564 return; 701 return;
565 702
566 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
567 grp->sv2 = 0; 704 grp->sv2 = 0;
568 705
569 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
570 req_cancel (sub);
571} 707}
572 708
573static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
574{ 711{
575 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
576 713 croak ("IO::AIO: unable to initialize result pipe");
577 req_cancel_subs (req);
578} 714}
579 715
580static void *aio_proc(void *arg); 716static void
581 717poll_wait (void)
582static void start_thread (void)
583{ 718{
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 LOCK (wrklock);
590
591 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
592 {
593 wrk->prev = &wrk_first;
594 wrk->next = wrk_first.next;
595 wrk_first.next->prev = wrk;
596 wrk_first.next = wrk;
597 ++started;
598 }
599 else
600 free (wrk);
601
602 UNLOCK (wrklock);
603}
604
605static void maybe_start_thread ()
606{
607 if (get_nthreads () >= wanted)
608 return;
609
610 /* todo: maybe use idle here, but might be less exact */
611 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
612 return;
613
614 start_thread ();
615}
616
617static void req_send (aio_req req)
618{
619 block_sig ();
620
621 ++nreqs;
622
623 LOCK (reqlock);
624 ++nready;
625 reqq_push (&req_queue, req);
626 COND_SIGNAL (reqwait);
627 UNLOCK (reqlock);
628
629 unblock_sig ();
630
631 maybe_start_thread ();
632}
633
634static void end_thread (void)
635{
636 aio_req req;
637
638 Newz (0, req, 1, aio_cb);
639
640 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS;
642
643 LOCK (reqlock);
644 reqq_push (&req_queue, req);
645 COND_SIGNAL (reqwait);
646 UNLOCK (reqlock);
647
648 LOCK (wrklock);
649 --started;
650 UNLOCK (wrklock);
651}
652
653static void set_max_idle (int nthreads)
654{
655 if (WORDACCESS_UNSAFE) LOCK (reqlock);
656 max_idle = nthreads <= 0 ? 1 : nthreads;
657 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
658}
659
660static void min_parallel (int nthreads)
661{
662 if (wanted < nthreads)
663 wanted = nthreads;
664}
665
666static void max_parallel (int nthreads)
667{
668 if (wanted > nthreads)
669 wanted = nthreads;
670
671 while (started > wanted)
672 end_thread ();
673}
674
675static void poll_wait ()
676{
677 fd_set rfd;
678
679 while (nreqs) 719 while (eio_nreqs ())
680 { 720 {
681 int size; 721 int size;
682 if (WORDACCESS_UNSAFE) LOCK (reslock); 722
723 X_LOCK (reslock);
683 size = res_queue.size; 724 size = res_queue.size;
684 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 725 X_UNLOCK (reslock);
685 726
686 if (size) 727 if (size)
687 return; 728 return;
688 729
689 maybe_start_thread (); 730 etp_maybe_start_thread ();
690 731
691 FD_ZERO(&rfd); 732 s_epipe_wait (&respipe);
692 FD_SET(respipe [0], &rfd);
693
694 select (respipe [0] + 1, &rfd, 0, 0, 0);
695 } 733 }
696} 734}
697 735
698static int poll_cb () 736static int
737poll_cb (void)
699{ 738{
700 dSP;
701 int count = 0;
702 int maxreqs = max_poll_reqs;
703 int do_croak = 0;
704 struct timeval tv_start, tv_now;
705 aio_req req;
706
707 if (max_poll_time)
708 gettimeofday (&tv_start, 0);
709
710 block_sig ();
711
712 for (;;) 739 for (;;)
713 { 740 {
714 for (;;) 741 int res = eio_poll ();
715 {
716 maybe_start_thread ();
717 742
718 LOCK (reslock); 743 if (res > 0)
719 req = reqq_shift (&res_queue);
720
721 if (req)
722 {
723 --npending;
724
725 if (!res_queue.size)
726 {
727 /* read any signals sent by the worker threads */
728 char buf [4];
729 while (read (respipe [0], buf, 4) == 4)
730 ;
731 }
732 }
733
734 UNLOCK (reslock);
735
736 if (!req)
737 break;
738
739 --nreqs;
740
741 if (req->type == REQ_GROUP && req->size)
742 {
743 req->int1 = 1; /* mark request as delayed */
744 continue;
745 }
746 else
747 {
748 if (!req_invoke (req))
749 {
750 req_free (req);
751 unblock_sig ();
752 croak (0); 744 croak (0);
753 }
754 745
755 count++; 746 if (!max_outstanding || max_outstanding > eio_nreqs ())
756 } 747 return res;
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 }
771
772 if (nreqs <= max_outstanding)
773 break;
774 748
775 poll_wait (); 749 poll_wait ();
776
777 ++maxreqs;
778 } 750 }
779
780 unblock_sig ();
781 return count;
782} 751}
783 752
784static void create_pipe () 753static void ecb_cold
754reinit (void)
785{ 755{
786 if (pipe (respipe)) 756 create_respipe ();
787 croak ("unable to initialize result pipe");
788 757
789 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 758 if (eio_init (want_poll, done_poll) < 0)
790 croak ("cannot set result pipe to nonblocking mode"); 759 croak ("IO::AIO: unable to initialise eio library");
791
792 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
793 croak ("cannot set result pipe to nonblocking mode");
794} 760}
795 761
796/*****************************************************************************/ 762/*****************************************************************************/
797/* work around various missing functions */
798 763
799#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
800# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
801# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
802
803/*
804 * make our pread/pwrite safe against themselves, but not against
805 * normal read/write by using a mutex. slows down execution a lot,
806 * but that's your problem, not mine.
807 */
808static mutex_t preadwritelock = MUTEX_INIT;
809
810static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
811{
812 ssize_t res;
813 off_t ooffset;
814
815 LOCK (preadwritelock);
816 ooffset = lseek (fd, 0, SEEK_CUR);
817 lseek (fd, offset, SEEK_SET);
818 res = read (fd, buf, count);
819 lseek (fd, ooffset, SEEK_SET);
820 UNLOCK (preadwritelock);
821
822 return res;
823}
824
825static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
826{
827 ssize_t res;
828 off_t ooffset;
829
830 LOCK (preadwritelock);
831 ooffset = lseek (fd, 0, SEEK_CUR);
832 lseek (fd, offset, SEEK_SET);
833 res = write (fd, buf, count);
834 lseek (fd, offset, SEEK_SET);
835 UNLOCK (preadwritelock);
836
837 return res;
838}
839#endif
840
841#ifndef HAVE_FUTIMES
842
843# define utimes(path,times) aio_utimes (path, times)
844# define futimes(fd,times) aio_futimes (fd, times)
845
846int aio_utimes (const char *filename, const struct timeval times[2])
847{
848 if (times)
849 {
850 struct utimbuf buf;
851
852 buf.actime = times[0].tv_sec;
853 buf.modtime = times[1].tv_sec;
854
855 return utime (filename, &buf);
856 }
857 else
858 return utime (filename, 0);
859}
860
861int aio_futimes (int fd, const struct timeval tv[2])
862{
863 errno = ENOSYS;
864 return -1;
865}
866
867#endif
868
869#if !HAVE_FDATASYNC
870# define fdatasync fsync
871#endif
872
873#if !HAVE_READAHEAD
874# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
875
876static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
877{
878 dBUF;
879
880 while (count > 0)
881 {
882 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
883
884 pread (fd, aio_buf, len, offset);
885 offset += len;
886 count -= len;
887 }
888
889 errno = 0;
890}
891
892#endif
893
894#if !HAVE_READDIR_R
895# define readdir_r aio_readdir_r
896
897static mutex_t readdirlock = MUTEX_INIT;
898
899static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
900{
901 struct dirent *e;
902 int errorno;
903
904 LOCK (readdirlock);
905
906 e = readdir (dirp);
907 errorno = errno;
908
909 if (e)
910 {
911 *res = ent;
912 strcpy (ent->d_name, e->d_name);
913 }
914 else
915 *res = 0;
916
917 UNLOCK (readdirlock);
918
919 errno = errorno;
920 return e ? 0 : -1;
921}
922#endif
923
924/* sendfile always needs emulation */
925static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
926{
927 ssize_t res;
928
929 if (!count)
930 return 0;
931
932#if HAVE_SENDFILE
933# if __linux
934 res = sendfile (ofd, ifd, &offset, count);
935
936# elif __freebsd
937 /*
938 * Of course, the freebsd sendfile is a dire hack with no thoughts
939 * wasted on making it similar to other I/O functions.
940 */
941 {
942 off_t sbytes;
943 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
944
945 if (res < 0 && sbytes)
946 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
947 res = sbytes;
948 }
949
950# elif __hpux
951 res = sendfile (ofd, ifd, offset, count, 0, 0);
952
953# elif __solaris
954 {
955 struct sendfilevec vec;
956 size_t sbytes;
957
958 vec.sfv_fd = ifd;
959 vec.sfv_flag = 0;
960 vec.sfv_off = offset;
961 vec.sfv_len = count;
962
963 res = sendfilev (ofd, &vec, 1, &sbytes);
964
965 if (res < 0 && sbytes)
966 res = sbytes;
967 }
968
969# endif 767#endif
970#else
971 res = -1;
972 errno = ENOSYS;
973#endif
974 768
975 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
976 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
977#if __solaris 771# define PROT_NONE 0
978 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
979#endif 776#endif
980 )
981 )
982 {
983 /* emulate sendfile. this is a major pain in the ass */
984 dBUF;
985 777
986 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
987 779
988 while (count) 780static int ecb_cold
989 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
990 ssize_t cnt; 782{
991 783 int old_errno = errno;
992 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 784 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785 errno = old_errno;
993 786
994 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
995 {
996 if (cnt && !res) res = -1;
997 break;
998 }
999 788
1000 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
1001 790
1002 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
1003 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1004 if (cnt && !res) res = -1;
1005 break;
1006 }
1007 793
1008 offset += cnt; 794 SvCUR_set (sv, 0);
1009 res += cnt; 795 SvPVX (sv) = 0;
1010 count -= cnt; 796 SvOK_off (sv);
1011 }
1012 }
1013 797
1014 return res; 798 return 0;
1015} 799}
1016 800
1017/* read a full directory */ 801static MGVTBL mmap_vtbl = {
1018static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
1019{ 803};
1020 DIR *dirp;
1021 union
1022 {
1023 struct dirent d;
1024 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1025 } *u;
1026 struct dirent *entp;
1027 char *name, *names;
1028 int memlen = 4096;
1029 int memofs = 0;
1030 int res = 0;
1031 int errorno;
1032
1033 LOCK (wrklock);
1034 self->dirp = dirp = opendir (req->ptr1);
1035 self->dbuf = u = malloc (sizeof (*u));
1036 req->flags |= FLAG_PTR2_FREE;
1037 req->ptr2 = names = malloc (memlen);
1038 UNLOCK (wrklock);
1039
1040 if (dirp && u && names)
1041 for (;;)
1042 {
1043 errno = 0;
1044 readdir_r (dirp, &u->d, &entp);
1045
1046 if (!entp)
1047 break;
1048
1049 name = entp->d_name;
1050
1051 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1052 {
1053 int len = strlen (name) + 1;
1054
1055 res++;
1056
1057 while (memofs + len > memlen)
1058 {
1059 memlen *= 2;
1060 LOCK (wrklock);
1061 req->ptr2 = names = realloc (names, memlen);
1062 UNLOCK (wrklock);
1063
1064 if (!names)
1065 break;
1066 }
1067
1068 memcpy (names + memofs, name, len);
1069 memofs += len;
1070 }
1071 }
1072
1073 if (errno)
1074 res = -1;
1075
1076 req->result = res;
1077}
1078 804
1079/*****************************************************************************/ 805/*****************************************************************************/
1080 806
1081static void *aio_proc (void *thr_arg) 807static SV *
808get_cb (SV *cb_sv)
1082{ 809{
810 SvGETMAGIC (cb_sv);
811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
812}
813
814static aio_req ecb_noinline
815dreq (SV *callback)
816{
817 SV *cb_cv;
1083 aio_req req; 818 aio_req req;
1084 struct timespec ts; 819 int req_pri = next_pri;
1085 worker *self = (worker *)thr_arg; 820 next_pri = EIO_PRI_DEFAULT;
1086 821
1087 /* try to distribute timeouts somewhat evenly */ 822 cb_cv = get_cb (callback);
1088 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1089 * (1000000000UL / 1024UL);
1090 823
1091 for (;;) 824 Newz (0, req, 1, eio_req);
1092 { 825 if (!req)
1093 ts.tv_sec = time (0) + IDLE_TIMEOUT; 826 croak ("out of memory during eio_req allocation");
1094 827
1095 LOCK (reqlock); 828 req->callback = SvREFCNT_inc (cb_cv);
829 req->pri = req_pri;
1096 830
1097 for (;;)
1098 {
1099 self->req = req = reqq_shift (&req_queue);
1100
1101 if (req)
1102 break;
1103
1104 ++idle;
1105
1106 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1107 == ETIMEDOUT)
1108 {
1109 if (idle > max_idle)
1110 {
1111 --idle;
1112 UNLOCK (reqlock);
1113 LOCK (wrklock);
1114 --started;
1115 UNLOCK (wrklock);
1116 goto quit;
1117 }
1118
1119 /* we are allowed to idle, so do so without any timeout */
1120 COND_WAIT (reqwait, reqlock);
1121 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1122 }
1123
1124 --idle;
1125 }
1126
1127 --nready;
1128
1129 UNLOCK (reqlock);
1130
1131 errno = 0; /* strictly unnecessary */
1132
1133 if (!(req->flags & FLAG_CANCELLED))
1134 switch (req->type)
1135 {
1136 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1137 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1138
1139 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1140 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1141
1142 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1143 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1144 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1145
1146 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1147 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1148 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1149 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1150
1151 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1152 case REQ_CLOSE: req->result = close (req->int1); break;
1153 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1154 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1155 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1156 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1157 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1158 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1159 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1160 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1161
1162 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1163 case REQ_FSYNC: req->result = fsync (req->int1); break;
1164 case REQ_READDIR: scandir_ (req, self); break;
1165
1166 case REQ_BUSY:
1167 {
1168 struct timeval tv;
1169
1170 tv.tv_sec = req->nv1;
1171 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1172
1173 req->result = select (0, 0, 0, 0, &tv);
1174 }
1175
1176 case REQ_UTIME:
1177 case REQ_FUTIME:
1178 {
1179 struct timeval tv[2];
1180 struct timeval *times;
1181
1182 if (req->nv1 != -1. || req->nv2 != -1.)
1183 {
1184 tv[0].tv_sec = req->nv1;
1185 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1186 tv[1].tv_sec = req->nv2;
1187 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1188
1189 times = tv;
1190 }
1191 else
1192 times = 0;
1193
1194
1195 req->result = req->type == REQ_FUTIME
1196 ? futimes (req->int1, times)
1197 : utimes (req->ptr1, times);
1198 }
1199
1200 case REQ_GROUP:
1201 case REQ_NOP:
1202 break;
1203
1204 case REQ_QUIT:
1205 goto quit;
1206
1207 default:
1208 req->result = -1;
1209 break;
1210 }
1211
1212 req->errorno = errno;
1213
1214 LOCK (reslock);
1215
1216 ++npending;
1217
1218 if (!reqq_push (&res_queue, req))
1219 {
1220 /* write a dummy byte to the pipe so fh becomes ready */
1221 write (respipe [1], &respipe, 1);
1222
1223 /* optionally signal the main thread asynchronously */
1224 if (main_sig)
1225 pthread_kill (main_tid, main_sig);
1226 }
1227
1228 self->req = 0;
1229 worker_clear (self);
1230
1231 UNLOCK (reslock);
1232 }
1233
1234quit:
1235 LOCK (wrklock);
1236 worker_free (self);
1237 UNLOCK (wrklock);
1238
1239 return 0; 831 return req;
1240}
1241
1242/*****************************************************************************/
1243
1244static void atfork_prepare (void)
1245{
1246 LOCK (wrklock);
1247 LOCK (reqlock);
1248 LOCK (reslock);
1249#if !HAVE_PREADWRITE
1250 LOCK (preadwritelock);
1251#endif
1252#if !HAVE_READDIR_R
1253 LOCK (readdirlock);
1254#endif
1255}
1256
1257static void atfork_parent (void)
1258{
1259#if !HAVE_READDIR_R
1260 UNLOCK (readdirlock);
1261#endif
1262#if !HAVE_PREADWRITE
1263 UNLOCK (preadwritelock);
1264#endif
1265 UNLOCK (reslock);
1266 UNLOCK (reqlock);
1267 UNLOCK (wrklock);
1268}
1269
1270static void atfork_child (void)
1271{
1272 aio_req prv;
1273
1274 while (prv = reqq_shift (&req_queue))
1275 req_free (prv);
1276
1277 while (prv = reqq_shift (&res_queue))
1278 req_free (prv);
1279
1280 while (wrk_first.next != &wrk_first)
1281 {
1282 worker *wrk = wrk_first.next;
1283
1284 if (wrk->req)
1285 req_free (wrk->req);
1286
1287 worker_clear (wrk);
1288 worker_free (wrk);
1289 }
1290
1291 started = 0;
1292 idle = 0;
1293 nreqs = 0;
1294 nready = 0;
1295 npending = 0;
1296
1297 close (respipe [0]);
1298 close (respipe [1]);
1299 create_pipe ();
1300
1301 atfork_parent ();
1302} 832}
1303 833
1304#define dREQ \ 834#define dREQ \
1305 aio_req req; \ 835 aio_req req = dreq (callback); \
1306 int req_pri = next_pri; \
1307 next_pri = DEFAULT_PRI + PRI_BIAS; \
1308 \
1309 if (SvOK (callback) && !SvROK (callback)) \
1310 croak ("callback must be undef or of reference type"); \
1311 \
1312 Newz (0, req, 1, aio_cb); \
1313 if (!req) \
1314 croak ("out of memory during aio_req allocation"); \
1315 \
1316 req->callback = newSVsv (callback); \
1317 req->pri = req_pri
1318 836
1319#define REQ_SEND \ 837#define REQ_SEND \
838 PUTBACK; \
1320 req_send (req); \ 839 req_submit (req); \
840 SPAGAIN; \
1321 \ 841 \
1322 if (GIMME_V != G_VOID) \ 842 if (GIMME_V != G_VOID) \
1323 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 843 XPUSHs (req_sv (req, aio_req_stash));
1324 844
845ecb_inline void
846req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
847{
848 if (expect_false (SvROK (path)))
849 {
850 AV *av = (AV *)SvRV (path);
851 SV *wdob;
852
853 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
854 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
855
856 path = AvARRAY (av)[1];
857 wdob = AvARRAY (av)[0];
858
859 if (SvOK (wdob))
860 {
861 *wd = SvAIO_WD (wdob);
862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
863 }
864 else
865 *wd = EIO_INVALID_WD;
866 }
867
868 *pathsv = newSVsv (path);
869 *ptr = SvPVbyte_nolen (*pathsv);
870}
871
872static void ecb_noinline
873req_set_path1 (aio_req req, SV *path)
874{
875 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
876}
877
878static void ecb_noinline
879req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
880{
881 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
882
883 switch (SvTYPE (rv))
884 {
885 case SVt_PVIO:
886 case SVt_PVLV:
887 case SVt_PVGV:
888 req->type = type_fh;
889 req->sv1 = newSVsv (fh_or_path);
890 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
891 break;
892
893 default:
894 req->type = type_path;
895 req_set_path1 (req, fh_or_path);
896 break;
897 }
898}
899
900XS(boot_IO__AIO) ecb_cold;
901
1325MODULE = IO::AIO PACKAGE = IO::AIO 902MODULE = IO::AIO PACKAGE = IO::AIO
1326 903
1327PROTOTYPES: ENABLE 904PROTOTYPES: ENABLE
1328 905
1329BOOT: 906BOOT:
1330{ 907{
908 static const struct {
909 const char *name;
910 IV iv;
911 } *civ, const_iv[] = {
912# define const_niv(name, value) { # name, (IV) value },
913# define const_iv(name) { # name, (IV) name },
914# define const_eio(name) { # name, (IV) EIO_ ## name },
915 const_iv (EXDEV)
916 const_iv (ENOSYS)
917 const_iv (O_RDONLY)
918 const_iv (O_WRONLY)
919 const_iv (O_RDWR)
920 const_iv (O_CREAT)
921 const_iv (O_TRUNC)
922 const_iv (O_EXCL)
923 const_iv (O_APPEND)
924
925 const_iv (O_ASYNC)
926 const_iv (O_DIRECT)
927 const_iv (O_NOATIME)
928
929 const_iv (O_CLOEXEC)
930 const_iv (O_NOCTTY)
931 const_iv (O_NOFOLLOW)
932 const_iv (O_NONBLOCK)
933 const_iv (O_EXEC)
934 const_iv (O_SEARCH)
935 const_iv (O_DIRECTORY)
936 const_iv (O_DSYNC)
937 const_iv (O_RSYNC)
938 const_iv (O_SYNC)
939 const_iv (O_TTY_INIT)
940
941 const_iv (S_IFIFO)
942 const_iv (S_IFCHR)
943 const_iv (S_IFBLK)
944 const_iv (S_IFLNK)
945 const_iv (S_IFREG)
946 const_iv (S_IFDIR)
947 const_iv (S_IFWHT)
948 const_iv (S_IFSOCK)
949 const_iv (S_IFMT)
950
951 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
952 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
953 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
954 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
955 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
956 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
957
958 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
959 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
960 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
961 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
962 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
963
964 const_iv (ST_RDONLY)
965 const_iv (ST_NOSUID)
966 const_iv (ST_NODEV)
967 const_iv (ST_NOEXEC)
968 const_iv (ST_SYNCHRONOUS)
969 const_iv (ST_MANDLOCK)
970 const_iv (ST_WRITE)
971 const_iv (ST_APPEND)
972 const_iv (ST_IMMUTABLE)
973 const_iv (ST_NOATIME)
974 const_iv (ST_NODIRATIME)
975 const_iv (ST_RELATIME)
976
977 const_iv (PROT_NONE)
978 const_iv (PROT_EXEC)
979 const_iv (PROT_READ)
980 const_iv (PROT_WRITE)
981
982 /*const_iv (MAP_FIXED)*/
983 const_iv (MAP_PRIVATE)
984 const_iv (MAP_SHARED)
985 const_iv (MAP_ANONYMOUS)
986
987 /* linuxish */
988 const_iv (MAP_HUGETLB)
989 const_iv (MAP_LOCKED)
990 const_iv (MAP_NORESERVE)
991 const_iv (MAP_POPULATE)
992 const_iv (MAP_NONBLOCK)
993
994 const_eio (MCL_FUTURE)
995 const_eio (MCL_CURRENT)
996
997 const_eio (MS_ASYNC)
998 const_eio (MS_INVALIDATE)
999 const_eio (MS_SYNC)
1000
1001 const_eio (MT_MODIFY)
1002
1003 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1004 const_eio (SYNC_FILE_RANGE_WRITE)
1005 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1006
1007 const_eio (FALLOC_FL_KEEP_SIZE)
1008
1009 const_eio (READDIR_DENTS)
1010 const_eio (READDIR_DIRS_FIRST)
1011 const_eio (READDIR_STAT_ORDER)
1012 const_eio (READDIR_FOUND_UNKNOWN)
1013
1014 const_eio (DT_UNKNOWN)
1015 const_eio (DT_FIFO)
1016 const_eio (DT_CHR)
1017 const_eio (DT_DIR)
1018 const_eio (DT_BLK)
1019 const_eio (DT_REG)
1020 const_eio (DT_LNK)
1021 const_eio (DT_SOCK)
1022 const_eio (DT_WHT)
1023 };
1024
1331 HV *stash = gv_stashpv ("IO::AIO", 1); 1025 aio_stash = gv_stashpv ("IO::AIO" , 1);
1026 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1027 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1028 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1332 1029
1333 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1030 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1334 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1031 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1335 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1336 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1337 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1338 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1339 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1340 1032
1341 create_pipe (); 1033 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1342 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1343}
1344 1034
1035 reinit ();
1036}
1037
1345void 1038void
1039reinit ()
1040 PROTOTYPE:
1041
1042void
1346max_poll_reqs (int nreqs) 1043max_poll_reqs (unsigned int nreqs)
1347 PROTOTYPE: $ 1044 PROTOTYPE: $
1348 CODE: 1045 CODE:
1349 max_poll_reqs = nreqs; 1046 eio_set_max_poll_reqs (nreqs);
1350 1047
1351void 1048void
1352max_poll_time (double nseconds) 1049max_poll_time (double nseconds)
1353 PROTOTYPE: $ 1050 PROTOTYPE: $
1354 CODE: 1051 CODE:
1355 max_poll_time = nseconds * AIO_TICKS; 1052 eio_set_max_poll_time (nseconds);
1356 1053
1357void 1054void
1358min_parallel (int nthreads) 1055min_parallel (unsigned int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_parallel (int nthreads)
1363 PROTOTYPE: $
1364
1365void
1366max_idle (int nthreads)
1367 PROTOTYPE: $ 1056 PROTOTYPE: $
1368 CODE: 1057 CODE:
1369 set_max_idle (nthreads); 1058 eio_set_min_parallel (nthreads);
1370 1059
1371int 1060void
1372max_outstanding (int maxreqs) 1061max_parallel (unsigned int nthreads)
1373 PROTOTYPE: $ 1062 PROTOTYPE: $
1374 CODE: 1063 CODE:
1375 RETVAL = max_outstanding; 1064 eio_set_max_parallel (nthreads);
1065
1066void
1067max_idle (unsigned int nthreads)
1068 PROTOTYPE: $
1069 CODE:
1070 eio_set_max_idle (nthreads);
1071
1072void
1073idle_timeout (unsigned int seconds)
1074 PROTOTYPE: $
1075 CODE:
1076 eio_set_idle_timeout (seconds);
1077
1078void
1079max_outstanding (unsigned int maxreqs)
1080 PROTOTYPE: $
1081 CODE:
1376 max_outstanding = maxreqs; 1082 max_outstanding = maxreqs;
1377 OUTPUT: 1083
1378 RETVAL 1084void
1085aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1086 PPCODE:
1087{
1088 dREQ;
1089
1090 req->type = EIO_WD_OPEN;
1091 req_set_path1 (req, pathname);
1092
1093 REQ_SEND;
1094}
1379 1095
1380void 1096void
1381aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1097aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1382 PROTOTYPE: $$$;$
1383 PPCODE: 1098 PPCODE:
1384{ 1099{
1385 dREQ; 1100 dREQ;
1386 1101
1387 req->type = REQ_OPEN; 1102 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 1103 req_set_path1 (req, pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 1104 req->int1 = flags;
1391 req->mode = mode; 1105 req->int2 = mode;
1392 1106
1393 REQ_SEND; 1107 REQ_SEND;
1394} 1108}
1395 1109
1396void 1110void
1397aio_close (SV *fh, SV *callback=&PL_sv_undef) 1111aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1398 PROTOTYPE: $;$
1399 ALIAS: 1112 ALIAS:
1400 aio_close = REQ_CLOSE
1401 aio_fsync = REQ_FSYNC 1113 aio_fsync = EIO_FSYNC
1402 aio_fdatasync = REQ_FDATASYNC 1114 aio_fdatasync = EIO_FDATASYNC
1115 aio_syncfs = EIO_SYNCFS
1403 PPCODE: 1116 PPCODE:
1404{ 1117{
1118 int fd = s_fileno_croak (fh, 0);
1405 dREQ; 1119 dREQ;
1406 1120
1407 req->type = ix; 1121 req->type = ix;
1408 req->sv1 = newSVsv (fh); 1122 req->sv1 = newSVsv (fh);
1409 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1123 req->int1 = fd;
1410 1124
1411 REQ_SEND (req); 1125 REQ_SEND (req);
1412} 1126}
1413 1127
1414void 1128void
1129aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1130 PPCODE:
1131{
1132 int fd = s_fileno_croak (fh, 0);
1133 dREQ;
1134
1135 req->type = EIO_SYNC_FILE_RANGE;
1136 req->sv1 = newSVsv (fh);
1137 req->int1 = fd;
1138 req->offs = offset;
1139 req->size = nbytes;
1140 req->int2 = flags;
1141
1142 REQ_SEND (req);
1143}
1144
1145void
1146aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1147 PPCODE:
1148{
1149 int fd = s_fileno_croak (fh, 0);
1150 dREQ;
1151
1152 req->type = EIO_FALLOCATE;
1153 req->sv1 = newSVsv (fh);
1154 req->int1 = fd;
1155 req->int2 = mode;
1156 req->offs = offset;
1157 req->size = len;
1158
1159 REQ_SEND (req);
1160}
1161
1162void
1163aio_close (SV *fh, SV *callback=&PL_sv_undef)
1164 PPCODE:
1165{
1166 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1167 int fd = s_fileno_croak (fh, 0);
1168 dREQ;
1169
1170 if (expect_false (close_fd < 0))
1171 {
1172 int pipefd [2];
1173
1174 if (
1175#ifdef _WIN32
1176 _pipe (pipefd, 1, _O_BINARY) < 0
1177#else
1178 pipe (pipefd) < 0
1179 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1180#endif
1181 || close (pipefd [1]) < 0
1182 )
1183 abort (); /*D*/
1184
1185 close_fd = pipefd [0];
1186 }
1187
1188 req->type = EIO_DUP2;
1189 req->int1 = close_fd;
1190 req->sv2 = newSVsv (fh);
1191 req->int2 = fd;
1192
1193 REQ_SEND (req);
1194}
1195
1196void
1415aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1416 ALIAS: 1198 ALIAS:
1417 aio_read = REQ_READ 1199 aio_read = EIO_READ
1418 aio_write = REQ_WRITE 1200 aio_write = EIO_WRITE
1419 PROTOTYPE: $$$$$;$
1420 PPCODE: 1201 PPCODE:
1421{ 1202{
1422 STRLEN svlen; 1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1423 char *svptr = SvPVbyte (data, svlen); 1205 char *svptr = SvPVbyte (data, svlen);
1424 1206 UV len = SvUV (length);
1425 SvUPGRADE (data, SVt_PV);
1426 SvPOK_on (data);
1427 1207
1428 if (dataoffset < 0) 1208 if (dataoffset < 0)
1429 dataoffset += svlen; 1209 dataoffset += svlen;
1430 1210
1431 if (dataoffset < 0 || dataoffset > svlen) 1211 if (dataoffset < 0 || dataoffset > svlen)
1432 croak ("data offset outside of string"); 1212 croak ("dataoffset outside of data scalar");
1433 1213
1434 if (ix == REQ_WRITE) 1214 if (ix == EIO_WRITE)
1435 { 1215 {
1436 /* write: check length and adjust. */ 1216 /* write: check length and adjust. */
1437 if (length < 0 || length + dataoffset > svlen) 1217 if (!SvOK (length) || len + dataoffset > svlen)
1438 length = svlen - dataoffset; 1218 len = svlen - dataoffset;
1439 } 1219 }
1440 else 1220 else
1441 { 1221 {
1442 /* read: grow scalar as necessary */ 1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1443 svptr = SvGROW (data, length + dataoffset + 1); 1224 svptr = SvGROW (data, len + dataoffset + 1);
1444 } 1225 }
1445
1446 if (length < 0)
1447 croak ("length must not be negative");
1448 1226
1449 { 1227 {
1450 dREQ; 1228 dREQ;
1451 1229
1452 req->type = ix; 1230 req->type = ix;
1453 req->sv1 = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1454 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1232 req->int1 = fd;
1455 : IoOFP (sv_2io (fh))); 1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1456 req->offs = offset;
1457 req->size = length; 1234 req->size = len;
1458 req->sv2 = SvREFCNT_inc (data); 1235 req->sv2 = SvREFCNT_inc (data);
1459 req->ptr1 = (char *)svptr + dataoffset; 1236 req->ptr2 = (char *)svptr + dataoffset;
1460 req->stroffset = dataoffset; 1237 req->stroffset = dataoffset;
1461 1238
1462 if (!SvREADONLY (data)) 1239 if (!SvREADONLY (data))
1463 { 1240 {
1464 SvREADONLY_on (data); 1241 SvREADONLY_on (data);
… …
1468 REQ_SEND; 1245 REQ_SEND;
1469 } 1246 }
1470} 1247}
1471 1248
1472void 1249void
1473aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1474 PROTOTYPE: $$;$ 1251 ALIAS:
1252 aio_readlink = EIO_READLINK
1253 aio_realpath = EIO_REALPATH
1475 PPCODE: 1254 PPCODE:
1476{ 1255{
1477 SV *data;
1478 dREQ; 1256 dREQ;
1479 1257
1480 data = newSV (NAME_MAX);
1481 SvPOK_on (data);
1482
1483 req->type = REQ_READLINK; 1258 req->type = ix;
1484 req->sv1 = newSVsv (path); 1259 req_set_path1 (req, pathname);
1485 req->ptr2 = SvPVbyte_nolen (req->sv1);
1486 req->sv2 = data;
1487 req->ptr1 = SvPVbyte_nolen (data);
1488 1260
1489 REQ_SEND; 1261 REQ_SEND;
1490} 1262}
1491 1263
1492void 1264void
1493aio_sendfile (SV *out_fh, SV *in_fh, UV in_offset, UV length, SV *callback=&PL_sv_undef) 1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1494 PROTOTYPE: $$$$;$
1495 PPCODE: 1266 PPCODE:
1496{ 1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1497 dREQ; 1270 dREQ;
1498 1271
1499 req->type = REQ_SENDFILE; 1272 req->type = EIO_SENDFILE;
1500 req->sv1 = newSVsv (out_fh); 1273 req->sv1 = newSVsv (out_fh);
1501 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1274 req->int1 = ofd;
1502 req->sv2 = newSVsv (in_fh); 1275 req->sv2 = newSVsv (in_fh);
1503 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1276 req->int2 = ifd;
1504 req->offs = in_offset; 1277 req->offs = in_offset;
1505 req->size = length; 1278 req->size = length;
1506 1279
1507 REQ_SEND; 1280 REQ_SEND;
1508} 1281}
1509 1282
1510void 1283void
1511aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) 1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1512 PROTOTYPE: $$$;$
1513 PPCODE: 1285 PPCODE:
1514{ 1286{
1287 int fd = s_fileno_croak (fh, 0);
1515 dREQ; 1288 dREQ;
1516 1289
1517 req->type = REQ_READAHEAD; 1290 req->type = EIO_READAHEAD;
1518 req->sv1 = newSVsv (fh); 1291 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1292 req->int1 = fd;
1520 req->offs = offset; 1293 req->offs = offset;
1521 req->size = length; 1294 req->size = length;
1522 1295
1523 REQ_SEND; 1296 REQ_SEND;
1524} 1297}
1525 1298
1526void 1299void
1527aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1528 ALIAS: 1301 ALIAS:
1529 aio_stat = REQ_STAT 1302 aio_stat = EIO_STAT
1530 aio_lstat = REQ_LSTAT 1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1531 PPCODE: 1305 PPCODE:
1532{ 1306{
1533 dREQ; 1307 dREQ;
1534 1308
1535 req->ptr2 = malloc (sizeof (Stat_t)); 1309 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1536 if (!req->ptr2)
1537 {
1538 req_free (req);
1539 croak ("out of memory during aio_stat statdata allocation");
1540 }
1541
1542 req->flags |= FLAG_PTR2_FREE;
1543 req->sv1 = newSVsv (fh_or_path);
1544
1545 if (SvPOK (fh_or_path))
1546 {
1547 req->type = ix;
1548 req->ptr1 = SvPVbyte_nolen (req->sv1);
1549 }
1550 else
1551 {
1552 req->type = REQ_FSTAT;
1553 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1554 }
1555 1310
1556 REQ_SEND; 1311 REQ_SEND;
1557} 1312}
1313
1314UV
1315major (UV dev)
1316 ALIAS:
1317 minor = 1
1318 CODE:
1319 RETVAL = ix ? major (dev) : minor (dev);
1320 OUTPUT:
1321 RETVAL
1322
1323UV
1324makedev (UV maj, UV min)
1325 CODE:
1326 RETVAL = makedev (maj, min);
1327 OUTPUT:
1328 RETVAL
1558 1329
1559void 1330void
1560aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1331aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1561 PPCODE: 1332 PPCODE:
1562{ 1333{
1563 dREQ; 1334 dREQ;
1564 1335
1565 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1336 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1566 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1337 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1567 req->sv1 = newSVsv (fh_or_path); 1338 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1568 1339
1569 if (SvPOK (fh_or_path)) 1340 REQ_SEND;
1570 { 1341}
1571 req->type = REQ_UTIME; 1342
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1343void
1573 } 1344aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1574 else 1345 PPCODE:
1575 { 1346{
1576 req->type = REQ_FUTIME; 1347 dREQ;
1577 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1348
1578 } 1349 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1350 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1579 1351
1580 REQ_SEND; 1352 REQ_SEND;
1581} 1353}
1582 1354
1583void 1355void
1584aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1356aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1585 PPCODE: 1357 PPCODE:
1586{ 1358{
1587 dREQ; 1359 dREQ;
1588 1360
1589 req->mode = mode; 1361 req->int2 = mode;
1590 req->sv1 = newSVsv (fh_or_path); 1362 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1591
1592 if (SvPOK (fh_or_path))
1593 {
1594 req->type = REQ_CHMOD;
1595 req->ptr1 = SvPVbyte_nolen (req->sv1);
1596 }
1597 else
1598 {
1599 req->type = REQ_FCHMOD;
1600 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1601 }
1602 1363
1603 REQ_SEND; 1364 REQ_SEND;
1604} 1365}
1605 1366
1606void 1367void
… …
1609{ 1370{
1610 dREQ; 1371 dREQ;
1611 1372
1612 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1373 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1613 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1374 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1614 req->sv1 = newSVsv (fh_or_path); 1375 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1615 1376
1616 if (SvPOK (fh_or_path)) 1377 REQ_SEND;
1617 { 1378}
1618 req->type = REQ_CHOWN; 1379
1619 req->ptr1 = SvPVbyte_nolen (req->sv1); 1380void
1620 } 1381aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1621 else 1382 PPCODE:
1622 { 1383{
1623 req->type = REQ_FCHOWN; 1384 dREQ;
1624 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1385
1625 } 1386 req->type = EIO_READDIR;
1387 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1388
1389 if (flags & EIO_READDIR_DENTS)
1390 req->int1 |= EIO_READDIR_CUSTOM2;
1391
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->type = EIO_MKDIR;
1404 req->int2 = mode;
1405 req_set_path1 (req, pathname);
1626 1406
1627 REQ_SEND; 1407 REQ_SEND;
1628} 1408}
1629 1409
1630void 1410void
1631aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1632 ALIAS: 1412 ALIAS:
1633 aio_unlink = REQ_UNLINK 1413 aio_unlink = EIO_UNLINK
1634 aio_rmdir = REQ_RMDIR 1414 aio_rmdir = EIO_RMDIR
1635 aio_readdir = REQ_READDIR 1415 aio_readdir = EIO_READDIR
1636 PPCODE: 1416 PPCODE:
1637{ 1417{
1638 dREQ; 1418 dREQ;
1639 1419
1640 req->type = ix; 1420 req->type = ix;
1641 req->sv1 = newSVsv (pathname); 1421 req_set_path1 (req, pathname);
1642 req->ptr1 = SvPVbyte_nolen (req->sv1);
1643 1422
1644 REQ_SEND; 1423 REQ_SEND;
1645} 1424}
1646 1425
1647void 1426void
1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1428 ALIAS:
1429 aio_link = EIO_LINK
1430 aio_symlink = EIO_SYMLINK
1431 aio_rename = EIO_RENAME
1432 PPCODE:
1433{
1434 dREQ;
1435 eio_wd wd2 = 0;
1436
1437 req->type = ix;
1438 req_set_path1 (req, oldpath);
1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1440 req->int3 = (long)wd2;
1441
1442 REQ_SEND;
1443}
1444
1445void
1648aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1649 PPCODE: 1447 PPCODE:
1650{ 1448{
1651 dREQ; 1449 dREQ;
1652 1450
1653 req->type = REQ_MKDIR; 1451 req->type = EIO_MKNOD;
1654 req->sv1 = newSVsv (pathname);
1655 req->ptr1 = SvPVbyte_nolen (req->sv1);
1656 req->mode = mode; 1452 req->int2 = (mode_t)mode;
1657 1453 req->offs = dev;
1658 REQ_SEND; 1454 req_set_path1 (req, pathname);
1659}
1660
1661void
1662aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1663 ALIAS:
1664 aio_link = REQ_LINK
1665 aio_symlink = REQ_SYMLINK
1666 aio_rename = REQ_RENAME
1667 PPCODE:
1668{
1669 dREQ;
1670
1671 req->type = ix;
1672 req->sv2 = newSVsv (oldpath);
1673 req->ptr2 = SvPVbyte_nolen (req->sv2);
1674 req->sv1 = newSVsv (newpath);
1675 req->ptr1 = SvPVbyte_nolen (req->sv1);
1676 1455
1677 REQ_SEND; 1456 REQ_SEND;
1678} 1457}
1679 1458
1680void 1459void
1681aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1460aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1682 PPCODE: 1461 ALIAS:
1462 aio_mtouch = EIO_MTOUCH
1463 aio_msync = EIO_MSYNC
1464 PPCODE:
1683{ 1465{
1684 dREQ; 1466 STRLEN svlen;
1685 1467 char *svptr = SvPVbyte (data, svlen);
1468 UV len = SvUV (length);
1469
1470 if (offset < 0)
1471 offset += svlen;
1472
1473 if (offset < 0 || offset > svlen)
1474 croak ("offset outside of scalar");
1475
1476 if (!SvOK (length) || len + offset > svlen)
1477 len = svlen - offset;
1478
1479 {
1480 dREQ;
1481
1482 req->type = ix;
1483 req->sv2 = SvREFCNT_inc (data);
1484 req->ptr2 = (char *)svptr + offset;
1485 req->size = len;
1486 req->int1 = flags;
1487
1488 REQ_SEND;
1489 }
1490}
1491
1492void
1493aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1494 PPCODE:
1495{
1496 STRLEN svlen;
1497 char *svptr = SvPVbyte (data, svlen);
1498 UV len = SvUV (length);
1499
1500 if (offset < 0)
1501 offset += svlen;
1502
1503 if (offset < 0 || offset > svlen)
1504 croak ("offset outside of scalar");
1505
1506 if (!SvOK (length) || len + offset > svlen)
1507 len = svlen - offset;
1508
1509 {
1510 dREQ;
1511
1686 req->type = REQ_MKNOD; 1512 req->type = EIO_MLOCK;
1687 req->sv1 = newSVsv (pathname); 1513 req->sv2 = SvREFCNT_inc (data);
1688 req->ptr1 = SvPVbyte_nolen (req->sv1); 1514 req->ptr2 = (char *)svptr + offset;
1689 req->mode = (mode_t)mode;
1690 req->offs = dev; 1515 req->size = len;
1691 1516
1692 REQ_SEND; 1517 REQ_SEND;
1518 }
1519}
1520
1521void
1522aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->type = EIO_MLOCKALL;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1693} 1531}
1694 1532
1695void 1533void
1696aio_busy (double delay, SV *callback=&PL_sv_undef) 1534aio_busy (double delay, SV *callback=&PL_sv_undef)
1697 PPCODE: 1535 PPCODE:
1698{ 1536{
1699 dREQ; 1537 dREQ;
1700 1538
1701 req->type = REQ_BUSY; 1539 req->type = EIO_BUSY;
1702 req->nv1 = delay < 0. ? 0. : delay; 1540 req->nv1 = delay < 0. ? 0. : delay;
1703 1541
1704 REQ_SEND; 1542 REQ_SEND;
1705} 1543}
1706 1544
1707void 1545void
1708aio_group (SV *callback=&PL_sv_undef) 1546aio_group (SV *callback=&PL_sv_undef)
1709 PROTOTYPE: ;$
1710 PPCODE: 1547 PPCODE:
1711{ 1548{
1712 dREQ; 1549 dREQ;
1713 1550
1714 req->type = REQ_GROUP; 1551 req->type = EIO_GROUP;
1715 1552
1716 req_send (req); 1553 req_submit (req);
1717 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1554 XPUSHs (req_sv (req, aio_grp_stash));
1718} 1555}
1719 1556
1720void 1557void
1721aio_nop (SV *callback=&PL_sv_undef) 1558aio_nop (SV *callback=&PL_sv_undef)
1559 ALIAS:
1560 aio_nop = EIO_NOP
1561 aio_sync = EIO_SYNC
1722 PPCODE: 1562 PPCODE:
1723{ 1563{
1724 dREQ; 1564 dREQ;
1725 1565
1726 req->type = REQ_NOP; 1566 req->type = ix;
1727 1567
1728 REQ_SEND; 1568 REQ_SEND;
1729} 1569}
1730 1570
1731int 1571int
1732aioreq_pri (int pri = 0) 1572aioreq_pri (int pri = 0)
1733 PROTOTYPE: ;$
1734 CODE: 1573 CODE:
1735 RETVAL = next_pri - PRI_BIAS; 1574 RETVAL = next_pri;
1736 if (items > 0) 1575 if (items > 0)
1737 { 1576 {
1738 if (pri < PRI_MIN) pri = PRI_MIN; 1577 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1739 if (pri > PRI_MAX) pri = PRI_MAX; 1578 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1740 next_pri = pri + PRI_BIAS; 1579 next_pri = pri;
1741 } 1580 }
1742 OUTPUT: 1581 OUTPUT:
1743 RETVAL 1582 RETVAL
1744 1583
1745void 1584void
1746aioreq_nice (int nice = 0) 1585aioreq_nice (int nice = 0)
1747 CODE: 1586 CODE:
1748 nice = next_pri - nice; 1587 nice = next_pri - nice;
1749 if (nice < PRI_MIN) nice = PRI_MIN; 1588 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1750 if (nice > PRI_MAX) nice = PRI_MAX; 1589 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1751 next_pri = nice + PRI_BIAS; 1590 next_pri = nice;
1752 1591
1753void 1592void
1754flush () 1593flush ()
1755 PROTOTYPE:
1756 CODE: 1594 CODE:
1757 while (nreqs) 1595 while (eio_nreqs ())
1758 { 1596 {
1759 poll_wait (); 1597 poll_wait ();
1760 poll_cb (); 1598 poll_cb ();
1761 } 1599 }
1762 1600
1763int 1601int
1764poll() 1602poll ()
1765 PROTOTYPE:
1766 CODE: 1603 CODE:
1767 poll_wait (); 1604 poll_wait ();
1768 RETVAL = poll_cb (); 1605 RETVAL = poll_cb ();
1769 OUTPUT: 1606 OUTPUT:
1770 RETVAL 1607 RETVAL
1771 1608
1772int 1609int
1773poll_fileno() 1610poll_fileno ()
1774 PROTOTYPE:
1775 CODE: 1611 CODE:
1776 RETVAL = respipe [0]; 1612 RETVAL = s_epipe_fd (&respipe);
1777 OUTPUT: 1613 OUTPUT:
1778 RETVAL 1614 RETVAL
1779 1615
1780int 1616int
1781poll_cb(...) 1617poll_cb (...)
1782 PROTOTYPE: 1618 PROTOTYPE:
1783 CODE: 1619 CODE:
1784 RETVAL = poll_cb (); 1620 RETVAL = poll_cb ();
1785 OUTPUT: 1621 OUTPUT:
1786 RETVAL 1622 RETVAL
1787 1623
1788void 1624void
1789poll_wait() 1625poll_wait ()
1790 PROTOTYPE:
1791 CODE: 1626 CODE:
1792 poll_wait (); 1627 poll_wait ();
1793 1628
1794void
1795setsig (int signum = SIGIO)
1796 PROTOTYPE: ;$
1797 CODE:
1798{
1799 if (block_sig_level)
1800 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1801
1802 LOCK (reslock);
1803 main_tid = pthread_self ();
1804 main_sig = signum;
1805 UNLOCK (reslock);
1806
1807 if (main_sig && npending)
1808 pthread_kill (main_tid, main_sig);
1809}
1810
1811void
1812aio_block (SV *cb)
1813 PROTOTYPE: &
1814 PPCODE:
1815{
1816 int count;
1817
1818 block_sig ();
1819 PUSHMARK (SP);
1820 PUTBACK;
1821 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1822 SPAGAIN;
1823 unblock_sig ();
1824
1825 if (SvTRUE (ERRSV))
1826 croak (0);
1827
1828 XSRETURN (count);
1829}
1830
1831int 1629int
1832nreqs() 1630nreqs ()
1833 PROTOTYPE:
1834 CODE: 1631 CODE:
1835 RETVAL = nreqs; 1632 RETVAL = eio_nreqs ();
1836 OUTPUT: 1633 OUTPUT:
1837 RETVAL 1634 RETVAL
1838 1635
1839int 1636int
1840nready() 1637nready ()
1841 PROTOTYPE:
1842 CODE: 1638 CODE:
1843 RETVAL = get_nready (); 1639 RETVAL = eio_nready ();
1844 OUTPUT: 1640 OUTPUT:
1845 RETVAL 1641 RETVAL
1846 1642
1847int 1643int
1848npending() 1644npending ()
1849 PROTOTYPE:
1850 CODE: 1645 CODE:
1851 RETVAL = get_npending (); 1646 RETVAL = eio_npending ();
1852 OUTPUT: 1647 OUTPUT:
1853 RETVAL 1648 RETVAL
1854 1649
1855int 1650int
1856nthreads() 1651nthreads ()
1857 PROTOTYPE:
1858 CODE: 1652 CODE:
1859 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1653 RETVAL = eio_nthreads ();
1860 RETVAL = started;
1861 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1862 OUTPUT: 1654 OUTPUT:
1863 RETVAL 1655 RETVAL
1864 1656
1657int
1658fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1659 CODE:
1660 RETVAL = posix_fadvise (fh, offset, length, advice);
1661 OUTPUT:
1662 RETVAL
1663
1664IV
1665sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1666 CODE:
1667 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1668 OUTPUT:
1669 RETVAL
1670
1671void
1672mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1673 PPCODE:
1674 sv_unmagic (scalar, MMAP_MAGIC);
1675{
1676 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1677 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1678 if (addr == (void *)-1)
1679 XSRETURN_NO;
1680
1681 sv_force_normal (scalar);
1682
1683 /* we store the length in mg_obj, as namlen is I32 :/ */
1684 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1685 ->mg_obj = (SV *)length;
1686
1687 SvUPGRADE (scalar, SVt_PV); /* nop... */
1688
1689 if (!(prot & PROT_WRITE))
1690 SvREADONLY_on (scalar);
1691
1692 if (SvLEN (scalar))
1693 Safefree (SvPVX (scalar));
1694
1695 SvPVX (scalar) = (char *)addr;
1696 SvCUR_set (scalar, length);
1697 SvLEN_set (scalar, 0);
1698 SvPOK_only (scalar);
1699
1700 XSRETURN_YES;
1701}
1702
1703void
1704munmap (SV *scalar)
1705 CODE:
1706 sv_unmagic (scalar, MMAP_MAGIC);
1707
1708int
1709madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1710 ALIAS:
1711 mprotect = 1
1712 CODE:
1713{
1714 STRLEN svlen;
1715 void *addr = SvPVbyte (scalar, svlen);
1716 size_t len = SvUV (length);
1717
1718 if (offset < 0)
1719 offset += svlen;
1720
1721 if (offset < 0 || offset > svlen)
1722 croak ("offset outside of scalar");
1723
1724 if (!SvOK (length) || len + offset > svlen)
1725 len = svlen - offset;
1726
1727 addr = (void *)(((intptr_t)addr) + offset);
1728 eio_page_align (&addr, &len);
1729
1730 switch (ix)
1731 {
1732 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1733 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1734 }
1735}
1736 OUTPUT:
1737 RETVAL
1738
1739int
1740munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1741 CODE:
1742{
1743 STRLEN svlen;
1744 void *addr = SvPVbyte (scalar, svlen);
1745 size_t len = SvUV (length);
1746
1747 if (offset < 0)
1748 offset += svlen;
1749
1750 if (offset < 0 || offset > svlen)
1751 croak ("offset outside of scalar");
1752
1753 if (!SvOK (length) || len + offset > svlen)
1754 len = svlen - offset;
1755
1756 addr = (void *)(((intptr_t)addr) + offset);
1757 eio_page_align (&addr, &len);
1758#if _POSIX_MEMLOCK_RANGE
1759 RETVAL = munlock (addr, len);
1760#else
1761 RETVAL = ((errno = ENOSYS), -1);
1762#endif
1763}
1764 OUTPUT:
1765 RETVAL
1766
1767int
1768munlockall ()
1769 CODE:
1770#if _POSIX_MEMLOCK
1771 munlockall ();
1772#else
1773 RETVAL = -1;
1774 errno = ENOSYS;
1775#endif
1776 OUTPUT:
1777 RETVAL
1778
1779void _on_next_submit (SV *cb)
1780 CODE:
1781 SvREFCNT_dec (on_next_submit);
1782 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1783
1865PROTOTYPES: DISABLE 1784PROTOTYPES: DISABLE
1785
1786MODULE = IO::AIO PACKAGE = IO::AIO::WD
1787
1788BOOT:
1789{
1790 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1791 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1792}
1793
1794void
1795DESTROY (SV *self)
1796 CODE:
1797{
1798 aio_wd wd = SvAIO_WD (self);
1799#if HAVE_AT
1800 {
1801 SV *callback = &PL_sv_undef;
1802 dREQ; /* clobbers next_pri :/ */
1803 next_pri = req->pri; /* restore next_pri */
1804 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1805 req->type = EIO_WD_CLOSE;
1806 req->wd = wd;
1807 REQ_SEND;
1808 }
1809#else
1810 eio_wd_close_sync (wd);
1811#endif
1812}
1866 1813
1867MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1814MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1868 1815
1869void 1816void
1870cancel (aio_req_ornot req) 1817cancel (aio_req_ornot req)
1871 CODE: 1818 CODE:
1872 req_cancel (req); 1819 eio_cancel (req);
1873 1820
1874void 1821void
1875cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1822cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1876 CODE: 1823 PPCODE:
1824{
1825 if (GIMME_V != G_VOID)
1826 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1827
1828 if (items > 1)
1829 {
1830 SV *cb_cv =get_cb (callback);
1831
1877 SvREFCNT_dec (req->callback); 1832 SvREFCNT_dec (req->callback);
1878 req->callback = newSVsv (callback); 1833 req->callback = SvREFCNT_inc (cb_cv);
1834 }
1835}
1879 1836
1880MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1837MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1881 1838
1882void 1839void
1883add (aio_req grp, ...) 1840add (aio_req grp, ...)
1884 PPCODE: 1841 PPCODE:
1885{ 1842{
1886 int i; 1843 int i;
1887 aio_req req;
1888
1889 if (main_sig && !block_sig_level)
1890 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1891 1844
1892 if (grp->int1 == 2) 1845 if (grp->int1 == 2)
1893 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1846 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1894 1847
1895 for (i = 1; i < items; ++i ) 1848 for (i = 1; i < items; ++i )
1896 { 1849 {
1850 aio_req req;
1851
1897 if (GIMME_V != G_VOID) 1852 if (GIMME_V != G_VOID)
1898 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1853 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1899 1854
1900 req = SvAIO_REQ (ST (i)); 1855 req = SvAIO_REQ (ST (i));
1901 1856
1902 if (req) 1857 if (req)
1903 { 1858 eio_grp_add (grp, req);
1904 ++grp->size;
1905 req->grp = grp;
1906
1907 req->grp_prev = 0;
1908 req->grp_next = grp->grp_first;
1909
1910 if (grp->grp_first)
1911 grp->grp_first->grp_prev = req;
1912
1913 grp->grp_first = req;
1914 }
1915 } 1859 }
1916} 1860}
1917 1861
1918void 1862void
1919cancel_subs (aio_req_ornot req) 1863cancel_subs (aio_req_ornot req)
… …
1928 AV *av; 1872 AV *av;
1929 1873
1930 grp->errorno = errno; 1874 grp->errorno = errno;
1931 1875
1932 av = newAV (); 1876 av = newAV ();
1877 av_extend (av, items - 1);
1933 1878
1934 for (i = 1; i < items; ++i ) 1879 for (i = 1; i < items; ++i )
1935 av_push (av, newSVsv (ST (i))); 1880 av_push (av, newSVsv (ST (i)));
1936 1881
1937 SvREFCNT_dec (grp->sv1); 1882 SvREFCNT_dec (grp->sv1);
… …
1944 grp->errorno = errorno; 1889 grp->errorno = errorno;
1945 1890
1946void 1891void
1947limit (aio_req grp, int limit) 1892limit (aio_req grp, int limit)
1948 CODE: 1893 CODE:
1949 grp->int2 = limit; 1894 eio_grp_limit (grp, limit);
1950 aio_grp_feed (grp);
1951 1895
1952void 1896void
1953feed (aio_req grp, SV *callback=&PL_sv_undef) 1897feed (aio_req grp, SV *callback=&PL_sv_undef)
1954 CODE: 1898 CODE:
1955{ 1899{
1956 SvREFCNT_dec (grp->sv2); 1900 SvREFCNT_dec (grp->sv2);
1957 grp->sv2 = newSVsv (callback); 1901 grp->sv2 = newSVsv (callback);
1902 grp->feed = aio_grp_feed;
1958 1903
1959 if (grp->int2 <= 0) 1904 if (grp->int2 <= 0)
1960 grp->int2 = 2; 1905 grp->int2 = 2;
1961 1906
1962 aio_grp_feed (grp); 1907 eio_grp_limit (grp, grp->int2);
1963} 1908}
1964 1909

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