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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC vs.
Revision 1.201 by root, Thu Sep 29 09:57:12 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>
23 19
24#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h>
29# include <sys/uio.h> 21# include <sys/mman.h>
30# elif __hpux 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
31# include <sys/socket.h> 69 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
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
34# else 295# else
35# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 297# endif
37#endif 298#endif
38 299#ifndef MAP_HUGETLB
39/* number of seconds after which idle threads exit */ 300# define MAP_HUGETLB 0
40#define IDLE_TIMEOUT 10
41
42/* used for struct dirent, AIX doesn't provide it */
43#ifndef NAME_MAX
44# define NAME_MAX 4096
45#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
46 314
47/* buffer size for various temporary buffers */ 315#ifndef makedev
48#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
49 324
50#define dBUF \ 325#ifndef PAGESIZE
51 char *aio_buf; \ 326# define PAGESIZE sysconf (_SC_PAGESIZE)
52 LOCK (wrklock); \ 327#endif
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
54 UNLOCK (wrklock); \
55 if (!aio_buf) \
56 return -1;
57
58typedef SV SV8; /* byte-sv, used for argument-checking */
59 328
60enum { 329enum {
61 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
62 REQ_OPEN, REQ_CLOSE,
63 REQ_READ, REQ_WRITE, REQ_READAHEAD,
64 REQ_SENDFILE,
65 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
66 REQ_FSYNC, REQ_FDATASYNC,
67 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
68 REQ_MKNOD, REQ_READDIR,
69 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
70 REQ_GROUP, REQ_NOP,
71 REQ_BUSY,
72}; 331};
73 332
74#define AIO_REQ_KLASS "IO::AIO::REQ"
75#define AIO_GRP_KLASS "IO::AIO::GRP"
76
77typedef struct aio_cb
78{
79 struct aio_cb *volatile next;
80
81 SV *callback, *fh;
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87
88 STRLEN stroffset;
89 int type;
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93
94 unsigned char flags;
95 unsigned char pri;
96
97 SV *self; /* the perl counterpart of this request, if any */
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
99} aio_cb;
100
101enum {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */
103 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
104 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
105};
106
107typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
108typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
109 336
110enum { 337static SV *on_next_submit;
111 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
112 PRI_MAX = 4, 339static int max_outstanding;
113 340
114 DEFAULT_PRI = 0, 341static s_epipe respipe;
115 PRI_BIAS = -PRI_MIN,
116 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
117};
118 342
119#define AIO_TICKS ((1000000 + 1023) >> 10)
120
121static unsigned int max_poll_time = 0;
122static unsigned int max_poll_reqs = 0;
123
124/* calculcate time difference in ~1/AIO_TICKS of a second */
125static int tvdiff (struct timeval *tv1, struct timeval *tv2)
126{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130
131static thread_t main_tid;
132static int main_sig;
133static int block_sig_level;
134
135void block_sig ()
136{
137 sigset_t ss;
138
139 if (block_sig_level++)
140 return;
141
142 if (!main_sig)
143 return;
144
145 sigemptyset (&ss);
146 sigaddset (&ss, main_sig);
147 pthread_sigmask (SIG_BLOCK, &ss, 0);
148}
149
150void unblock_sig ()
151{
152 sigset_t ss;
153
154 if (--block_sig_level)
155 return;
156
157 if (!main_sig)
158 return;
159
160 sigemptyset (&ss);
161 sigaddset (&ss, main_sig);
162 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169/* worker threads management */
170static mutex_t wrklock = MUTEX_INIT;
171
172typedef struct worker {
173 /* locked by wrklock */
174 struct worker *prev, *next;
175
176 thread_t tid;
177
178 /* locked by reslock, reqlock or wrklock */
179 aio_req req; /* currently processed request */
180 void *dbuf;
181 DIR *dirp;
182} worker;
183
184static worker wrk_first = { &wrk_first, &wrk_first, 0 };
185
186static void worker_clear (worker *wrk)
187{
188 if (wrk->dirp)
189 {
190 closedir (wrk->dirp);
191 wrk->dirp = 0;
192 }
193
194 if (wrk->dbuf)
195 {
196 free (wrk->dbuf);
197 wrk->dbuf = 0;
198 }
199}
200
201static void worker_free (worker *wrk)
202{
203 wrk->next->prev = wrk->prev;
204 wrk->prev->next = wrk->next;
205
206 free (wrk);
207}
208
209static volatile unsigned int nreqs, nready, npending;
210static volatile unsigned int max_idle = 4;
211static volatile unsigned int max_outstanding = 0xffffffff;
212static int respipe [2];
213
214static mutex_t reslock = MUTEX_INIT;
215static mutex_t reqlock = MUTEX_INIT;
216static cond_t reqwait = COND_INIT;
217
218#if WORDACCESS_UNSAFE
219
220static unsigned int get_nready ()
221{
222 unsigned int retval;
223
224 LOCK (reqlock);
225 retval = nready;
226 UNLOCK (reqlock);
227
228 return retval;
229}
230
231static unsigned int get_npending ()
232{
233 unsigned int retval;
234
235 LOCK (reslock);
236 retval = npending;
237 UNLOCK (reslock);
238
239 return retval;
240}
241
242static unsigned int get_nthreads ()
243{
244 unsigned int retval;
245
246 LOCK (wrklock);
247 retval = started;
248 UNLOCK (wrklock);
249
250 return retval;
251}
252
253#else
254
255# define get_nready() nready
256# define get_npending() npending
257# define get_nthreads() started
258
259#endif
260
261/*
262 * a somewhat faster data structure might be nice, but
263 * with 8 priorities this actually needs <20 insns
264 * per shift, the most expensive operation.
265 */
266typedef struct {
267 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
268 int size;
269} reqq;
270
271static reqq req_queue;
272static reqq res_queue;
273
274int reqq_push (reqq *q, aio_req req)
275{
276 int pri = req->pri;
277 req->next = 0;
278
279 if (q->qe[pri])
280 {
281 q->qe[pri]->next = req;
282 q->qe[pri] = req;
283 }
284 else
285 q->qe[pri] = q->qs[pri] = req;
286
287 return q->size++;
288}
289
290aio_req reqq_shift (reqq *q)
291{
292 int pri;
293
294 if (!q->size)
295 return 0;
296
297 --q->size;
298
299 for (pri = NUM_PRI; pri--; )
300 {
301 aio_req req = q->qs[pri];
302
303 if (req)
304 {
305 if (!(q->qs[pri] = req->next))
306 q->qe[pri] = 0;
307
308 return req;
309 }
310 }
311
312 abort ();
313}
314
315static int poll_cb ();
316static int req_invoke (aio_req req);
317static void req_free (aio_req req); 343static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
319 345
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
320/* must be called at most once */ 360/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
322{ 363{
323 if (!req->self) 364 if (!req->self)
324 { 365 {
325 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 368 }
328 369
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 371}
331 372
332static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
333{ 381{
334 MAGIC *mg; 382 MAGIC *mg;
335 383
336 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")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 388 croak ("object of class IO::AIO::REQ expected");
338 389
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 391
341 return mg ? (aio_req)mg->mg_ptr : 0; 392 return mg ? (aio_req)mg->mg_ptr : 0;
342} 393}
343 394
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
344static void aio_grp_feed (aio_req grp) 407aio_grp_feed (aio_req grp)
345{ 408{
346 block_sig (); 409 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 410 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 411 dSP;
355 412
356 ENTER; 413 ENTER;
357 SAVETMPS; 414 SAVETMPS;
358 PUSHMARK (SP); 415 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 417 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 419 SPAGAIN;
363 FREETMPS; 420 FREETMPS;
364 LEAVE; 421 LEAVE;
365 }
366
367 /* stop if no progress has been made */
368 if (old_len == grp->size)
369 {
370 SvREFCNT_dec (grp->sv2);
371 grp->sv2 = 0;
372 break;
373 }
374 } 422 }
375
376 unblock_sig ();
377} 423}
378 424
379static void aio_grp_dec (aio_req grp) 425static void
426req_submit (eio_req *req)
380{ 427{
381 --grp->size; 428 eio_submit (req);
382 429
383 /* call feeder, if applicable */ 430 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 431 {
389 block_sig (); 432 dSP;
433 SV *cb = sv_2mortal (on_next_submit);
390 434
391 if (!req_invoke (grp)) 435 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 436
398 req_free (grp); 437 PUSHMARK (SP);
399 unblock_sig (); 438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
400 } 440 }
401} 441}
402 442
443static int
403static int req_invoke (aio_req req) 444req_invoke (eio_req *req)
404{ 445{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 446 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 447 SvREADONLY_off (req->sv2);
409 448
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 449 if (!EIO_CANCELLED (req) && req->callback)
411 { 450 {
451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
454
412 ENTER; 455 ENTER;
413 SAVETMPS; 456 SAVETMPS;
414 PUSHMARK (SP); 457 PUSHMARK (SP);
415 EXTEND (SP, 1); 458 EXTEND (SP, 1);
416 459
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
417 switch (req->type) 473 switch (req->type)
418 { 474 {
475 case EIO_WD_OPEN:
476 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
419 case REQ_READDIR: 479 case EIO_READDIR:
420 { 480 {
421 SV *rv = &PL_sv_undef; 481 SV *rv = &PL_sv_undef;
422 482
423 if (req->result >= 0) 483 if (req->result >= 0)
424 { 484 {
425 int i; 485 int i;
426 char *buf = req->ptr2; 486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 488 AV *av = newAV ();
428 489
429 av_extend (av, req->result - 1); 490 av_extend (av, req->result - 1);
430 491
431 for (i = 0; i < req->result; ++i) 492 for (i = 0; i < req->result; ++i)
432 { 493 {
433 SV *sv = newSVpv (buf, 0); 494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 497
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
435 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);
436 buf += SvCUR (sv) + 1; 526 names += SvCUR (name) + 1;
527 }
437 } 528 }
438 529
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 530 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 531 }
441 532
442 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))));
443 } 537 }
444 break; 538 break;
445 539
446 case REQ_OPEN: 540 case EIO_OPEN:
447 { 541 {
448 /* convert fd to fh */ 542 /* convert fd to fh */
449 SV *fh; 543 SV *fh = &PL_sv_undef;
450 544
451 PUSHs (sv_2mortal (newSViv (req->result))); 545 if (req->result >= 0)
452 PUTBACK; 546 {
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 547 GV *gv = (GV *)sv_newmortal ();
454 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);
455 554
456 fh = POPs; 555 symlen = snprintf (
457 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
458 XPUSHs (fh); 567 PUSHs (fh);
459 } 568 }
460 break; 569 break;
461 570
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
462 case REQ_GROUP: 603 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
464 605
465 if (req->sv1) 606 if (req->sv1)
466 { 607 {
467 int i; 608 int i;
471 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
473 } 614 }
474 break; 615 break;
475 616
476 case REQ_NOP: 617 case EIO_NOP:
477 case REQ_BUSY: 618 case EIO_BUSY:
478 break; 619 break;
479 620
480 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
481 if (req->result > 0) 623 if (req->result > 0)
482 { 624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
483 SvCUR_set (req->sv1, req->result);
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1);
486 }
487 break; 625 break;
488 626
489 case REQ_STAT: 627 case EIO_STAT:
490 case REQ_LSTAT: 628 case EIO_LSTAT:
491 case REQ_FSTAT: 629 case EIO_FSTAT:
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
493 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
494 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
495 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
496 break; 637 break;
497 638
498 case REQ_READ: 639 case EIO_READ:
640 {
499 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
500 *SvEND (req->sv1) = 0; 642 *SvEND (req->sv2) = 0;
501 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
502 break; 647 break;
503 648
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
504 default: 654 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
506 break; 656 break;
507 } 657 }
508 658
509 errno = req->errorno; 659 errno = req->errorno;
510 660
511 PUTBACK; 661 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 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;
514 669
515 FREETMPS; 670 FREETMPS;
516 LEAVE; 671 LEAVE;
672
673 PUTBACK;
517 } 674 }
518 675
519 if (req->grp)
520 {
521 aio_req grp = req->grp;
522
523 /* unlink request */
524 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
525 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
526
527 if (grp->grp_first == req)
528 grp->grp_first = req->grp_next;
529
530 aio_grp_dec (grp);
531 }
532
533 return !SvTRUE (ERRSV); 676 return !!SvTRUE (ERRSV);
534} 677}
535 678
536static void req_free (aio_req req) 679static void
680req_destroy (aio_req req)
537{ 681{
538 if (req->self) 682 if (req->self)
539 { 683 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
542 } 686 }
543 687
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
548 693
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 694 Safefree (req);
553} 695}
554 696
697static void
555static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
556{ 699{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
560 return; 701 return;
561 702
562 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 704 grp->sv2 = 0;
564 705
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 707}
568 708
569static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
570{ 711{
571 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
572 713 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 714}
575 715
576static void *aio_proc(void *arg); 716static void
577 717poll_wait (void)
578static void start_thread (void)
579{ 718{
580 worker *wrk = calloc (1, sizeof (worker));
581
582 if (!wrk)
583 croak ("unable to allocate worker thread data");
584
585 LOCK (wrklock);
586
587 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
588 {
589 wrk->prev = &wrk_first;
590 wrk->next = wrk_first.next;
591 wrk_first.next->prev = wrk;
592 wrk_first.next = wrk;
593 ++started;
594 }
595 else
596 free (wrk);
597
598 UNLOCK (wrklock);
599}
600
601static void maybe_start_thread ()
602{
603 if (get_nthreads () >= wanted)
604 return;
605
606 /* todo: maybe use idle here, but might be less exact */
607 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
608 return;
609
610 start_thread ();
611}
612
613static void req_send (aio_req req)
614{
615 block_sig ();
616
617 ++nreqs;
618
619 LOCK (reqlock);
620 ++nready;
621 reqq_push (&req_queue, req);
622 COND_SIGNAL (reqwait);
623 UNLOCK (reqlock);
624
625 unblock_sig ();
626
627 maybe_start_thread ();
628}
629
630static void end_thread (void)
631{
632 aio_req req;
633
634 Newz (0, req, 1, aio_cb);
635
636 req->type = REQ_QUIT;
637 req->pri = PRI_MAX + PRI_BIAS;
638
639 LOCK (reqlock);
640 reqq_push (&req_queue, req);
641 COND_SIGNAL (reqwait);
642 UNLOCK (reqlock);
643
644 LOCK (wrklock);
645 --started;
646 UNLOCK (wrklock);
647}
648
649static void set_max_idle (int nthreads)
650{
651 if (WORDACCESS_UNSAFE) LOCK (reqlock);
652 max_idle = nthreads <= 0 ? 1 : nthreads;
653 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
654}
655
656static void min_parallel (int nthreads)
657{
658 if (wanted < nthreads)
659 wanted = nthreads;
660}
661
662static void max_parallel (int nthreads)
663{
664 if (wanted > nthreads)
665 wanted = nthreads;
666
667 while (started > wanted)
668 end_thread ();
669}
670
671static void poll_wait ()
672{
673 fd_set rfd;
674
675 while (nreqs) 719 while (eio_nreqs ())
676 { 720 {
677 int size; 721 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 722
723 X_LOCK (reslock);
679 size = res_queue.size; 724 size = res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 725 X_UNLOCK (reslock);
681 726
682 if (size) 727 if (size)
683 return; 728 return;
684 729
685 maybe_start_thread (); 730 etp_maybe_start_thread ();
686 731
687 FD_ZERO(&rfd); 732 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 733 }
692} 734}
693 735
694static int poll_cb () 736static int
737poll_cb (void)
695{ 738{
696 dSP;
697 int count = 0;
698 int maxreqs = max_poll_reqs;
699 int do_croak = 0;
700 struct timeval tv_start, tv_now;
701 aio_req req;
702
703 if (max_poll_time)
704 gettimeofday (&tv_start, 0);
705
706 block_sig ();
707
708 for (;;) 739 for (;;)
709 { 740 {
710 for (;;) 741 int res = eio_poll ();
711 {
712 maybe_start_thread ();
713 742
714 LOCK (reslock); 743 if (res > 0)
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 {
719 --npending;
720
721 if (!res_queue.size)
722 {
723 /* read any signals sent by the worker threads */
724 char buf [4];
725 while (read (respipe [0], buf, 4) == 4)
726 ;
727 }
728 }
729
730 UNLOCK (reslock);
731
732 if (!req)
733 break;
734
735 --nreqs;
736
737 if (req->type == REQ_GROUP && req->size)
738 {
739 req->int1 = 1; /* mark request as delayed */
740 continue;
741 }
742 else
743 {
744 if (!req_invoke (req))
745 {
746 req_free (req);
747 unblock_sig ();
748 croak (0); 744 croak (0);
749 }
750 745
751 count++; 746 if (!max_outstanding || max_outstanding > eio_nreqs ())
752 } 747 return res;
753
754 req_free (req);
755
756 if (maxreqs && !--maxreqs)
757 break;
758
759 if (max_poll_time)
760 {
761 gettimeofday (&tv_now, 0);
762
763 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
764 break;
765 }
766 }
767
768 if (nreqs <= max_outstanding)
769 break;
770 748
771 poll_wait (); 749 poll_wait ();
772
773 ++maxreqs;
774 } 750 }
775
776 unblock_sig ();
777 return count;
778} 751}
779 752
780static void create_pipe () 753static void ecb_cold
754reinit (void)
781{ 755{
782 if (pipe (respipe)) 756 create_respipe ();
783 croak ("unable to initialize result pipe");
784 757
785 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 758 if (eio_init (want_poll, done_poll) < 0)
786 croak ("cannot set result pipe to nonblocking mode"); 759 croak ("IO::AIO: unable to initialise eio library");
787
788 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790} 760}
791 761
792/*****************************************************************************/ 762/*****************************************************************************/
793/* work around various missing functions */
794 763
795#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
796# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
797# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
798
799/*
800 * make our pread/pwrite safe against themselves, but not against
801 * normal read/write by using a mutex. slows down execution a lot,
802 * but that's your problem, not mine.
803 */
804static mutex_t preadwritelock = MUTEX_INIT;
805
806static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
807{
808 ssize_t res;
809 off_t ooffset;
810
811 LOCK (preadwritelock);
812 ooffset = lseek (fd, 0, SEEK_CUR);
813 lseek (fd, offset, SEEK_SET);
814 res = read (fd, buf, count);
815 lseek (fd, ooffset, SEEK_SET);
816 UNLOCK (preadwritelock);
817
818 return res;
819}
820
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
822{
823 ssize_t res;
824 off_t ooffset;
825
826 LOCK (preadwritelock);
827 ooffset = lseek (fd, 0, SEEK_CUR);
828 lseek (fd, offset, SEEK_SET);
829 res = write (fd, buf, count);
830 lseek (fd, offset, SEEK_SET);
831 UNLOCK (preadwritelock);
832
833 return res;
834}
835#endif
836
837#if !HAVE_FDATASYNC
838# define fdatasync fsync
839#endif
840
841#if !HAVE_READAHEAD
842# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
843
844static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
845{
846 dBUF;
847
848 while (count > 0)
849 {
850 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
851
852 pread (fd, aio_buf, len, offset);
853 offset += len;
854 count -= len;
855 }
856
857 errno = 0;
858}
859
860#endif
861
862#if !HAVE_READDIR_R
863# define readdir_r aio_readdir_r
864
865static mutex_t readdirlock = MUTEX_INIT;
866
867static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
868{
869 struct dirent *e;
870 int errorno;
871
872 LOCK (readdirlock);
873
874 e = readdir (dirp);
875 errorno = errno;
876
877 if (e)
878 {
879 *res = ent;
880 strcpy (ent->d_name, e->d_name);
881 }
882 else
883 *res = 0;
884
885 UNLOCK (readdirlock);
886
887 errno = errorno;
888 return e ? 0 : -1;
889}
890#endif
891
892/* sendfile always needs emulation */
893static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
894{
895 ssize_t res;
896
897 if (!count)
898 return 0;
899
900#if HAVE_SENDFILE
901# if __linux
902 res = sendfile (ofd, ifd, &offset, count);
903
904# elif __freebsd
905 /*
906 * Of course, the freebsd sendfile is a dire hack with no thoughts
907 * wasted on making it similar to other I/O functions.
908 */
909 {
910 off_t sbytes;
911 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
912
913 if (res < 0 && sbytes)
914 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
915 res = sbytes;
916 }
917
918# elif __hpux
919 res = sendfile (ofd, ifd, offset, count, 0, 0);
920
921# elif __solaris
922 {
923 struct sendfilevec vec;
924 size_t sbytes;
925
926 vec.sfv_fd = ifd;
927 vec.sfv_flag = 0;
928 vec.sfv_off = offset;
929 vec.sfv_len = count;
930
931 res = sendfilev (ofd, &vec, 1, &sbytes);
932
933 if (res < 0 && sbytes)
934 res = sbytes;
935 }
936
937# endif 767#endif
938#else
939 res = -1;
940 errno = ENOSYS;
941#endif
942 768
943 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
944 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
945#if __solaris 771# define PROT_NONE 0
946 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
947#endif 776#endif
948 )
949 )
950 {
951 /* emulate sendfile. this is a major pain in the ass */
952 dBUF;
953 777
954 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
955 779
956 while (count) 780static int ecb_cold
957 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
958 ssize_t cnt; 782{
959 783 int old_errno = errno;
960 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;
961 786
962 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
963 {
964 if (cnt && !res) res = -1;
965 break;
966 }
967 788
968 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
969 790
970 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
971 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
972 if (cnt && !res) res = -1;
973 break;
974 }
975 793
976 offset += cnt; 794 SvCUR_set (sv, 0);
977 res += cnt; 795 SvPVX (sv) = 0;
978 count -= cnt; 796 SvOK_off (sv);
979 }
980 }
981 797
982 return res; 798 return 0;
983} 799}
984 800
985/* read a full directory */ 801static MGVTBL mmap_vtbl = {
986static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
987{ 803};
988 DIR *dirp;
989 union
990 {
991 struct dirent d;
992 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
993 } *u;
994 struct dirent *entp;
995 char *name, *names;
996 int memlen = 4096;
997 int memofs = 0;
998 int res = 0;
999 int errorno;
1000
1001 LOCK (wrklock);
1002 self->dirp = dirp = opendir (req->ptr1);
1003 self->dbuf = u = malloc (sizeof (*u));
1004 req->flags |= FLAG_PTR2_FREE;
1005 req->ptr2 = names = malloc (memlen);
1006 UNLOCK (wrklock);
1007
1008 if (dirp && u && names)
1009 for (;;)
1010 {
1011 errno = 0;
1012 readdir_r (dirp, &u->d, &entp);
1013
1014 if (!entp)
1015 break;
1016
1017 name = entp->d_name;
1018
1019 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1020 {
1021 int len = strlen (name) + 1;
1022
1023 res++;
1024
1025 while (memofs + len > memlen)
1026 {
1027 memlen *= 2;
1028 LOCK (wrklock);
1029 req->ptr2 = names = realloc (names, memlen);
1030 UNLOCK (wrklock);
1031
1032 if (!names)
1033 break;
1034 }
1035
1036 memcpy (names + memofs, name, len);
1037 memofs += len;
1038 }
1039 }
1040
1041 if (errno)
1042 res = -1;
1043
1044 req->result = res;
1045}
1046 804
1047/*****************************************************************************/ 805/*****************************************************************************/
1048 806
1049static void *aio_proc (void *thr_arg) 807static SV *
808get_cb (SV *cb_sv)
1050{ 809{
1051 aio_req req; 810 SvGETMAGIC (cb_sv);
1052 struct timespec ts; 811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1053 worker *self = (worker *)thr_arg;
1054
1055 /* try to distribute timeouts somewhat evenly */
1056 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1057 * (1000000000UL / 1024UL);
1058
1059 for (;;)
1060 {
1061 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1062
1063 LOCK (reqlock);
1064
1065 for (;;)
1066 {
1067 self->req = req = reqq_shift (&req_queue);
1068
1069 if (req)
1070 break;
1071
1072 ++idle;
1073
1074 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1075 == ETIMEDOUT)
1076 {
1077 if (idle > max_idle)
1078 {
1079 --idle;
1080 UNLOCK (reqlock);
1081 LOCK (wrklock);
1082 --started;
1083 UNLOCK (wrklock);
1084 goto quit;
1085 }
1086
1087 /* we are allowed to idle, so do so without any timeout */
1088 COND_WAIT (reqwait, reqlock);
1089 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1090 }
1091
1092 --idle;
1093 }
1094
1095 --nready;
1096
1097 UNLOCK (reqlock);
1098
1099 errno = 0; /* strictly unnecessary */
1100
1101 if (!(req->flags & FLAG_CANCELLED))
1102 switch (req->type)
1103 {
1104 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1105 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1106
1107 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1108 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1109
1110 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1111 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1113
1114 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1115 case REQ_CLOSE: req->result = close (req->int1); break;
1116 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1117 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1118 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 {
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 /* optionally signal the main thread asynchronously */
1163 if (main_sig)
1164 pthread_kill (main_tid, main_sig);
1165 }
1166
1167 self->req = 0;
1168 worker_clear (self);
1169
1170 UNLOCK (reslock);
1171 }
1172
1173quit:
1174 LOCK (wrklock);
1175 worker_free (self);
1176 UNLOCK (wrklock);
1177
1178 return 0;
1179}
1180
1181/*****************************************************************************/
1182
1183static void atfork_prepare (void)
1184{
1185 LOCK (wrklock);
1186 LOCK (reqlock);
1187 LOCK (reslock);
1188#if !HAVE_PREADWRITE
1189 LOCK (preadwritelock);
1190#endif
1191#if !HAVE_READDIR_R
1192 LOCK (readdirlock);
1193#endif
1194}
1195
1196static void atfork_parent (void)
1197{
1198#if !HAVE_READDIR_R
1199 UNLOCK (readdirlock);
1200#endif
1201#if !HAVE_PREADWRITE
1202 UNLOCK (preadwritelock);
1203#endif
1204 UNLOCK (reslock);
1205 UNLOCK (reqlock);
1206 UNLOCK (wrklock);
1207}
1208
1209static void atfork_child (void)
1210{
1211 aio_req prv;
1212
1213 while (prv = reqq_shift (&req_queue))
1214 req_free (prv);
1215
1216 while (prv = reqq_shift (&res_queue))
1217 req_free (prv);
1218
1219 while (wrk_first.next != &wrk_first)
1220 {
1221 worker *wrk = wrk_first.next;
1222
1223 if (wrk->req)
1224 req_free (wrk->req);
1225
1226 worker_clear (wrk);
1227 worker_free (wrk);
1228 }
1229
1230 started = 0;
1231 idle = 0;
1232 nreqs = 0;
1233 nready = 0;
1234 npending = 0;
1235
1236 close (respipe [0]);
1237 close (respipe [1]);
1238 create_pipe ();
1239
1240 atfork_parent ();
1241} 812}
1242 813
1243#define dREQ \ 814#define dREQ \
815 SV *cb_cv; \
1244 aio_req req; \ 816 aio_req req; \
1245 int req_pri = next_pri; \ 817 int req_pri = next_pri; \
1246 next_pri = DEFAULT_PRI + PRI_BIAS; \ 818 next_pri = EIO_PRI_DEFAULT; \
1247 \ 819 \
1248 if (SvOK (callback) && !SvROK (callback)) \ 820 cb_cv = get_cb (callback); \
1249 croak ("callback must be undef or of reference type"); \
1250 \ 821 \
1251 Newz (0, req, 1, aio_cb); \ 822 Newz (0, req, 1, eio_req); \
1252 if (!req) \ 823 if (!req) \
1253 croak ("out of memory during aio_req allocation"); \ 824 croak ("out of memory during eio_req allocation"); \
1254 \ 825 \
1255 req->callback = newSVsv (callback); \ 826 req->callback = SvREFCNT_inc (cb_cv); \
1256 req->pri = req_pri 827 req->pri = req_pri
1257 828
1258#define REQ_SEND \ 829#define REQ_SEND \
830 PUTBACK; \
1259 req_send (req); \ 831 req_submit (req); \
832 SPAGAIN; \
1260 \ 833 \
1261 if (GIMME_V != G_VOID) \ 834 if (GIMME_V != G_VOID) \
1262 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 835 XPUSHs (req_sv (req, aio_req_stash));
1263 836
837ecb_inline void
838req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839{
840 if (expect_false (SvROK (path)))
841 {
842 AV *av = (AV *)SvRV (path);
843 SV *wdob;
844
845 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
846 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848 path = AvARRAY (av)[1];
849 wdob = AvARRAY (av)[0];
850
851 if (SvOK (wdob))
852 {
853 *wd = SvAIO_WD (wdob);
854 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
855 }
856 else
857 *wd = EIO_INVALID_WD;
858 }
859
860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 break;
884
885 default:
886 req->type = type_path;
887 req_set_path1 (req, fh_or_path);
888 break;
889 }
890}
891
1264MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
1265 893
1266PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
1267 895
1268BOOT: 896BOOT:
1269{ 897{
898 static const struct {
899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
905 const_iv (EXDEV)
906 const_iv (ENOSYS)
907 const_iv (O_RDONLY)
908 const_iv (O_WRONLY)
909 const_iv (O_RDWR)
910 const_iv (O_CREAT)
911 const_iv (O_TRUNC)
912 const_iv (O_EXCL)
913 const_iv (O_APPEND)
914
915 const_iv (O_ASYNC)
916 const_iv (O_DIRECT)
917 const_iv (O_NOATIME)
918
919 const_iv (O_CLOEXEC)
920 const_iv (O_NOCTTY)
921 const_iv (O_NOFOLLOW)
922 const_iv (O_NONBLOCK)
923 const_iv (O_EXEC)
924 const_iv (O_SEARCH)
925 const_iv (O_DIRECTORY)
926 const_iv (O_DSYNC)
927 const_iv (O_RSYNC)
928 const_iv (O_SYNC)
929 const_iv (O_TTY_INIT)
930
931 const_iv (S_IFIFO)
932 const_iv (S_IFCHR)
933 const_iv (S_IFBLK)
934 const_iv (S_IFLNK)
935 const_iv (S_IFREG)
936 const_iv (S_IFDIR)
937 const_iv (S_IFWHT)
938 const_iv (S_IFSOCK)
939 const_iv (S_IFMT)
940
941 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
942 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
943 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
944 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
945 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
946 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
947
948 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
949 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
950 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
951 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
952 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
953
954 const_iv (ST_RDONLY)
955 const_iv (ST_NOSUID)
956 const_iv (ST_NODEV)
957 const_iv (ST_NOEXEC)
958 const_iv (ST_SYNCHRONOUS)
959 const_iv (ST_MANDLOCK)
960 const_iv (ST_WRITE)
961 const_iv (ST_APPEND)
962 const_iv (ST_IMMUTABLE)
963 const_iv (ST_NOATIME)
964 const_iv (ST_NODIRATIME)
965 const_iv (ST_RELATIME)
966
967 const_iv (PROT_NONE)
968 const_iv (PROT_EXEC)
969 const_iv (PROT_READ)
970 const_iv (PROT_WRITE)
971
972 /*const_iv (MAP_FIXED)*/
973 const_iv (MAP_PRIVATE)
974 const_iv (MAP_SHARED)
975 const_iv (MAP_ANONYMOUS)
976
977 /* linuxish */
978 const_iv (MAP_HUGETLB)
979 const_iv (MAP_LOCKED)
980 const_iv (MAP_NORESERVE)
981 const_iv (MAP_POPULATE)
982 const_iv (MAP_NONBLOCK)
983
984 const_eio (MCL_FUTURE)
985 const_eio (MCL_CURRENT)
986
987 const_eio (MS_ASYNC)
988 const_eio (MS_INVALIDATE)
989 const_eio (MS_SYNC)
990
991 const_eio (MT_MODIFY)
992
993 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
994 const_eio (SYNC_FILE_RANGE_WRITE)
995 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
996
997 const_eio (FALLOC_FL_KEEP_SIZE)
998
999 const_eio (READDIR_DENTS)
1000 const_eio (READDIR_DIRS_FIRST)
1001 const_eio (READDIR_STAT_ORDER)
1002 const_eio (READDIR_FOUND_UNKNOWN)
1003
1004 const_eio (DT_UNKNOWN)
1005 const_eio (DT_FIFO)
1006 const_eio (DT_CHR)
1007 const_eio (DT_DIR)
1008 const_eio (DT_BLK)
1009 const_eio (DT_REG)
1010 const_eio (DT_LNK)
1011 const_eio (DT_SOCK)
1012 const_eio (DT_WHT)
1013 };
1014
1270 HV *stash = gv_stashpv ("IO::AIO", 1); 1015 aio_stash = gv_stashpv ("IO::AIO" , 1);
1016 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1017 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1018 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1271 1019
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1020 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1021 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1274 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1275 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1276 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1277 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1279 1022
1280 create_pipe (); 1023 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283 1024
1025 reinit ();
1026}
1027
1284void 1028void
1029reinit ()
1030 PROTOTYPE:
1031
1032void
1285max_poll_reqs (int nreqs) 1033max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1034 PROTOTYPE: $
1287 CODE: 1035 CODE:
1288 max_poll_reqs = nreqs; 1036 eio_set_max_poll_reqs (nreqs);
1289 1037
1290void 1038void
1291max_poll_time (double nseconds) 1039max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1040 PROTOTYPE: $
1293 CODE: 1041 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1042 eio_set_max_poll_time (nseconds);
1295 1043
1296void 1044void
1297min_parallel (int nthreads) 1045min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1046 PROTOTYPE: $
1307 CODE: 1047 CODE:
1308 set_max_idle (nthreads); 1048 eio_set_min_parallel (nthreads);
1309 1049
1310int 1050void
1311max_outstanding (int maxreqs) 1051max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1052 PROTOTYPE: $
1313 CODE: 1053 CODE:
1314 RETVAL = max_outstanding; 1054 eio_set_max_parallel (nthreads);
1055
1056void
1057max_idle (unsigned int nthreads)
1058 PROTOTYPE: $
1059 CODE:
1060 eio_set_max_idle (nthreads);
1061
1062void
1063idle_timeout (unsigned int seconds)
1064 PROTOTYPE: $
1065 CODE:
1066 eio_set_idle_timeout (seconds);
1067
1068void
1069max_outstanding (unsigned int maxreqs)
1070 PROTOTYPE: $
1071 CODE:
1315 max_outstanding = maxreqs; 1072 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1073
1319void 1074void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1075aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1076 PPCODE:
1327{ 1077{
1328 dREQ; 1078 dREQ;
1329 1079
1080 req->type = EIO_WD_OPEN;
1081 req_set_path1 (req, pathname);
1082
1083 REQ_SEND;
1084}
1085
1086void
1087aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1088 PPCODE:
1089{
1090 dREQ;
1091
1330 req->type = REQ_OPEN; 1092 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1093 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1094 req->int1 = flags;
1334 req->mode = mode; 1095 req->int2 = mode;
1335 1096
1336 REQ_SEND; 1097 REQ_SEND;
1337} 1098}
1338 1099
1339void 1100void
1340aio_close (fh,callback=&PL_sv_undef) 1101aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1102 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1103 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1104 aio_fdatasync = EIO_FDATASYNC
1105 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1106 PPCODE:
1349{ 1107{
1108 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1109 dREQ;
1351 1110
1352 req->type = ix; 1111 req->type = ix;
1353 req->fh = newSVsv (fh); 1112 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1113 req->int1 = fd;
1355 1114
1356 REQ_SEND (req); 1115 REQ_SEND (req);
1357} 1116}
1358 1117
1359void 1118void
1119aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1120 PPCODE:
1121{
1122 int fd = s_fileno_croak (fh, 0);
1123 dREQ;
1124
1125 req->type = EIO_SYNC_FILE_RANGE;
1126 req->sv1 = newSVsv (fh);
1127 req->int1 = fd;
1128 req->offs = offset;
1129 req->size = nbytes;
1130 req->int2 = flags;
1131
1132 REQ_SEND (req);
1133}
1134
1135void
1136aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1137 PPCODE:
1138{
1139 int fd = s_fileno_croak (fh, 0);
1140 dREQ;
1141
1142 req->type = EIO_FALLOCATE;
1143 req->sv1 = newSVsv (fh);
1144 req->int1 = fd;
1145 req->int2 = mode;
1146 req->offs = offset;
1147 req->size = len;
1148
1149 REQ_SEND (req);
1150}
1151
1152void
1153aio_close (SV *fh, SV *callback=&PL_sv_undef)
1154 PPCODE:
1155{
1156 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1157 int fd = s_fileno_croak (fh, 0);
1158 dREQ;
1159
1160 if (expect_false (close_fd < 0))
1161 {
1162 int pipefd [2];
1163
1164 if (
1165#ifdef _WIN32
1166 _pipe (pipefd, 1, _O_BINARY) < 0
1167#else
1168 pipe (pipefd) < 0
1169 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1170#endif
1171 || close (pipefd [1]) < 0
1172 )
1173 abort (); /*D*/
1174
1175 close_fd = pipefd [0];
1176 }
1177
1178 req->type = EIO_DUP2;
1179 req->int1 = close_fd;
1180 req->sv2 = newSVsv (fh);
1181 req->int2 = fd;
1182
1183 REQ_SEND (req);
1184}
1185
1186void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1187aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1361 SV * fh
1362 UV offset
1363 UV length
1364 SV8 * data
1365 UV dataoffset
1366 SV * callback
1367 ALIAS: 1188 ALIAS:
1368 aio_read = REQ_READ 1189 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1190 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1191 PPCODE:
1372{ 1192{
1373 STRLEN svlen; 1193 STRLEN svlen;
1194 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1195 char *svptr = SvPVbyte (data, svlen);
1375 1196 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1197
1379 if (dataoffset < 0) 1198 if (dataoffset < 0)
1380 dataoffset += svlen; 1199 dataoffset += svlen;
1381 1200
1382 if (dataoffset < 0 || dataoffset > svlen) 1201 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1202 croak ("dataoffset outside of data scalar");
1384 1203
1385 if (ix == REQ_WRITE) 1204 if (ix == EIO_WRITE)
1386 { 1205 {
1387 /* write: check length and adjust. */ 1206 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1207 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1208 len = svlen - dataoffset;
1390 } 1209 }
1391 else 1210 else
1392 { 1211 {
1393 /* read: grow scalar as necessary */ 1212 /* read: check type and grow scalar as necessary */
1213 SvUPGRADE (data, SVt_PV);
1394 svptr = SvGROW (data, length + dataoffset + 1); 1214 svptr = SvGROW (data, len + dataoffset + 1);
1395 } 1215 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1216
1400 { 1217 {
1401 dREQ; 1218 dREQ;
1402 1219
1403 req->type = ix; 1220 req->type = ix;
1404 req->fh = newSVsv (fh); 1221 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1222 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1223 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1224 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1225 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1226 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1227 req->stroffset = dataoffset;
1412 1228
1413 if (!SvREADONLY (data)) 1229 if (!SvREADONLY (data))
1414 { 1230 {
1415 SvREADONLY_on (data); 1231 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1232 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1233 }
1418 1234
1419 REQ_SEND; 1235 REQ_SEND;
1420 } 1236 }
1421} 1237}
1422 1238
1423void 1239void
1424aio_readlink (path,callback=&PL_sv_undef) 1240aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1425 SV8 * path 1241 ALIAS:
1426 SV * callback 1242 aio_readlink = EIO_READLINK
1427 PROTOTYPE: $$;$ 1243 aio_realpath = EIO_REALPATH
1428 PPCODE: 1244 PPCODE:
1429{ 1245{
1430 SV *data;
1431 dREQ; 1246 dREQ;
1432 1247
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1248 req->type = ix;
1437 req->fh = newSVsv (path); 1249 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1250
1442 REQ_SEND; 1251 REQ_SEND;
1443} 1252}
1444 1253
1445void 1254void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1255aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1447 SV * out_fh
1448 SV * in_fh
1449 UV in_offset
1450 UV length
1451 SV * callback
1452 PROTOTYPE: $$$$;$
1453 PPCODE: 1256 PPCODE:
1454{ 1257{
1258 int ifd = s_fileno_croak (in_fh , 0);
1259 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1260 dREQ;
1456 1261
1457 req->type = REQ_SENDFILE; 1262 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1263 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1264 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1265 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1266 req->int2 = ifd;
1462 req->offs = in_offset; 1267 req->offs = in_offset;
1463 req->size = length; 1268 req->size = length;
1464 1269
1465 REQ_SEND; 1270 REQ_SEND;
1466} 1271}
1467 1272
1468void 1273void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1274aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1275 PPCODE:
1476{ 1276{
1277 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1278 dREQ;
1478 1279
1479 req->type = REQ_READAHEAD; 1280 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1281 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1282 req->int1 = fd;
1482 req->offs = offset; 1283 req->offs = offset;
1483 req->size = length; 1284 req->size = length;
1484 1285
1485 REQ_SEND; 1286 REQ_SEND;
1486} 1287}
1487 1288
1488void 1289void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1290aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1291 ALIAS:
1493 aio_stat = REQ_STAT 1292 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1293 aio_lstat = EIO_LSTAT
1294 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1295 PPCODE:
1496{ 1296{
1497 dREQ; 1297 dREQ;
1498 1298
1499 req->ptr2 = malloc (sizeof (Stat_t));
1500 if (!req->ptr2)
1501 {
1502 req_free (req);
1503 croak ("out of memory during aio_stat statdata allocation");
1504 }
1505
1506 req->flags |= FLAG_PTR2_FREE;
1507
1508 if (SvPOK (fh_or_path))
1509 {
1510 req->type = ix;
1511 req->sv1 = newSVsv (fh_or_path); 1299 req->sv1 = newSVsv (fh_or_path);
1512 req->ptr1 = SvPVbyte_nolen (req->sv1); 1300 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1513 }
1514 else
1515 {
1516 req->type = REQ_FSTAT;
1517 req->fh = newSVsv (fh_or_path);
1518 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1519 }
1520
1521 REQ_SEND; 1301 REQ_SEND;
1522} 1302}
1523 1303
1304UV
1305major (UV dev)
1306 ALIAS:
1307 minor = 1
1308 CODE:
1309 RETVAL = ix ? major (dev) : minor (dev);
1310 OUTPUT:
1311 RETVAL
1312
1313UV
1314makedev (UV maj, UV min)
1315 CODE:
1316 RETVAL = makedev (maj, min);
1317 OUTPUT:
1318 RETVAL
1319
1524void 1320void
1321aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1322 PPCODE:
1323{
1324 dREQ;
1325
1326 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1327 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1328 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1329
1330 REQ_SEND;
1331}
1332
1333void
1334aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1340 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1341
1342 REQ_SEND;
1343}
1344
1345void
1346aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1347 PPCODE:
1348{
1349 dREQ;
1350
1351 req->int2 = mode;
1352 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1353
1354 REQ_SEND;
1355}
1356
1357void
1358aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1359 PPCODE:
1360{
1361 dREQ;
1362
1363 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1364 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1365 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1366
1367 REQ_SEND;
1368}
1369
1370void
1371aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1372 PPCODE:
1373{
1374 dREQ;
1375
1376 req->type = EIO_READDIR;
1377 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1378
1379 if (flags & EIO_READDIR_DENTS)
1380 req->int1 |= EIO_READDIR_CUSTOM2;
1381
1382 req_set_path1 (req, pathname);
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1389 PPCODE:
1390{
1391 dREQ;
1392
1393 req->type = EIO_MKDIR;
1394 req->int2 = mode;
1395 req_set_path1 (req, pathname);
1396
1397 REQ_SEND;
1398}
1399
1400void
1525aio_unlink (pathname,callback=&PL_sv_undef) 1401aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1402 ALIAS:
1529 aio_unlink = REQ_UNLINK 1403 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1404 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1405 aio_readdir = EIO_READDIR
1532 PPCODE: 1406 PPCODE:
1533{ 1407{
1534 dREQ; 1408 dREQ;
1535 1409
1536 req->type = ix; 1410 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1411 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1412
1540 REQ_SEND; 1413 REQ_SEND;
1541} 1414}
1542 1415
1543void 1416void
1417aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1418 ALIAS:
1419 aio_link = EIO_LINK
1420 aio_symlink = EIO_SYMLINK
1421 aio_rename = EIO_RENAME
1422 PPCODE:
1423{
1424 dREQ;
1425 eio_wd wd2 = 0;
1426
1427 req->type = ix;
1428 req_set_path1 (req, oldpath);
1429 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1430 req->int3 = (long)wd2;
1431
1432 REQ_SEND;
1433}
1434
1435void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef) 1436aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1545 SV8 * pathname
1546 UV mode
1547 SV * callback
1548 PPCODE: 1437 PPCODE:
1549{ 1438{
1550 dREQ; 1439 dREQ;
1551 1440
1552 req->type = REQ_MKDIR; 1441 req->type = EIO_MKNOD;
1553 req->sv1 = newSVsv (pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 req->mode = mode; 1442 req->int2 = (mode_t)mode;
1556 1443 req->offs = dev;
1557 REQ_SEND; 1444 req_set_path1 (req, pathname);
1558}
1559
1560void
1561aio_link (oldpath,newpath,callback=&PL_sv_undef)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS:
1566 aio_link = REQ_LINK
1567 aio_symlink = REQ_SYMLINK
1568 aio_rename = REQ_RENAME
1569 PPCODE:
1570{
1571 dREQ;
1572
1573 req->type = ix;
1574 req->fh = newSVsv (oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh);
1576 req->sv1 = newSVsv (newpath);
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1445
1579 REQ_SEND; 1446 REQ_SEND;
1580} 1447}
1581 1448
1582void 1449void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1450aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1584 SV8 * pathname 1451 ALIAS:
1585 UV mode 1452 aio_mtouch = EIO_MTOUCH
1586 UV dev 1453 aio_msync = EIO_MSYNC
1587 SV * callback 1454 PPCODE:
1455{
1456 STRLEN svlen;
1457 char *svptr = SvPVbyte (data, svlen);
1458 UV len = SvUV (length);
1459
1460 if (offset < 0)
1461 offset += svlen;
1462
1463 if (offset < 0 || offset > svlen)
1464 croak ("offset outside of scalar");
1465
1466 if (!SvOK (length) || len + offset > svlen)
1467 len = svlen - offset;
1468
1469 {
1470 dREQ;
1471
1472 req->type = ix;
1473 req->sv2 = SvREFCNT_inc (data);
1474 req->ptr2 = (char *)svptr + offset;
1475 req->size = len;
1476 req->int1 = flags;
1477
1478 REQ_SEND;
1479 }
1480}
1481
1482void
1483aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1484 PPCODE:
1485{
1486 STRLEN svlen;
1487 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length);
1489
1490 if (offset < 0)
1491 offset += svlen;
1492
1493 if (offset < 0 || offset > svlen)
1494 croak ("offset outside of scalar");
1495
1496 if (!SvOK (length) || len + offset > svlen)
1497 len = svlen - offset;
1498
1499 {
1500 dREQ;
1501
1502 req->type = EIO_MLOCK;
1503 req->sv2 = SvREFCNT_inc (data);
1504 req->ptr2 = (char *)svptr + offset;
1505 req->size = len;
1506
1507 REQ_SEND;
1508 }
1509}
1510
1511void
1512aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1517 req->type = EIO_MLOCKALL;
1518 req->int1 = flags;
1519
1520 REQ_SEND;
1521}
1522
1523void
1524aio_busy (double delay, SV *callback=&PL_sv_undef)
1588 PPCODE: 1525 PPCODE:
1589{ 1526{
1590 dREQ; 1527 dREQ;
1591 1528
1592 req->type = REQ_MKNOD; 1529 req->type = EIO_BUSY;
1593 req->sv1 = newSVsv (pathname); 1530 req->nv1 = delay < 0. ? 0. : delay;
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1531
1595 req->mode = (mode_t)mode;
1596 req->offs = dev;
1597
1598 REQ_SEND; 1532 REQ_SEND;
1599} 1533}
1600 1534
1601void 1535void
1602aio_busy (delay,callback=&PL_sv_undef) 1536aio_group (SV *callback=&PL_sv_undef)
1603 double delay 1537 PPCODE:
1604 SV * callback
1605 PPCODE:
1606{ 1538{
1607 dREQ; 1539 dREQ;
1608 1540
1609 req->type = REQ_BUSY; 1541 req->type = EIO_GROUP;
1610 req->int1 = delay < 0. ? 0 : delay;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1612 1542
1613 REQ_SEND; 1543 req_submit (req);
1544 XPUSHs (req_sv (req, aio_grp_stash));
1614} 1545}
1615 1546
1616void 1547void
1617aio_group (callback=&PL_sv_undef) 1548aio_nop (SV *callback=&PL_sv_undef)
1618 SV * callback 1549 ALIAS:
1619 PROTOTYPE: ;$ 1550 aio_nop = EIO_NOP
1620 PPCODE: 1551 aio_sync = EIO_SYNC
1552 PPCODE:
1621{ 1553{
1622 dREQ; 1554 dREQ;
1623 1555
1624 req->type = REQ_GROUP;
1625
1626 req_send (req);
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1628}
1629
1630void
1631aio_nop (callback=&PL_sv_undef)
1632 SV * callback
1633 PPCODE:
1634{
1635 dREQ;
1636
1637 req->type = REQ_NOP; 1556 req->type = ix;
1638 1557
1639 REQ_SEND; 1558 REQ_SEND;
1640} 1559}
1641 1560
1642int 1561int
1643aioreq_pri (int pri = 0) 1562aioreq_pri (int pri = 0)
1644 PROTOTYPE: ;$
1645 CODE: 1563 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 1564 RETVAL = next_pri;
1647 if (items > 0) 1565 if (items > 0)
1648 { 1566 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 1567 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 1568 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 1569 next_pri = pri;
1652 } 1570 }
1653 OUTPUT: 1571 OUTPUT:
1654 RETVAL 1572 RETVAL
1655 1573
1656void 1574void
1657aioreq_nice (int nice = 0) 1575aioreq_nice (int nice = 0)
1658 CODE: 1576 CODE:
1659 nice = next_pri - nice; 1577 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 1578 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 1579 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 1580 next_pri = nice;
1663 1581
1664void 1582void
1665flush () 1583flush ()
1666 PROTOTYPE:
1667 CODE: 1584 CODE:
1668 while (nreqs) 1585 while (eio_nreqs ())
1669 { 1586 {
1670 poll_wait (); 1587 poll_wait ();
1671 poll_cb (); 1588 poll_cb ();
1672 } 1589 }
1673 1590
1674int 1591int
1675poll() 1592poll ()
1676 PROTOTYPE:
1677 CODE: 1593 CODE:
1678 poll_wait (); 1594 poll_wait ();
1679 RETVAL = poll_cb (); 1595 RETVAL = poll_cb ();
1680 OUTPUT: 1596 OUTPUT:
1681 RETVAL 1597 RETVAL
1682 1598
1683int 1599int
1684poll_fileno() 1600poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 1601 CODE:
1687 RETVAL = respipe [0]; 1602 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 1603 OUTPUT:
1689 RETVAL 1604 RETVAL
1690 1605
1691int 1606int
1692poll_cb(...) 1607poll_cb (...)
1693 PROTOTYPE: 1608 PROTOTYPE:
1694 CODE: 1609 CODE:
1695 RETVAL = poll_cb (); 1610 RETVAL = poll_cb ();
1696 OUTPUT: 1611 OUTPUT:
1697 RETVAL 1612 RETVAL
1698 1613
1699void 1614void
1700poll_wait() 1615poll_wait ()
1701 PROTOTYPE:
1702 CODE: 1616 CODE:
1703 poll_wait (); 1617 poll_wait ();
1704 1618
1705void
1706setsig (int signum = SIGIO)
1707 PROTOTYPE: ;$
1708 CODE:
1709{
1710 if (block_sig_level)
1711 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712
1713 LOCK (reslock);
1714 main_tid = pthread_self ();
1715 main_sig = signum;
1716 UNLOCK (reslock);
1717
1718 if (main_sig && npending)
1719 pthread_kill (main_tid, main_sig);
1720}
1721
1722void
1723aio_block (SV *cb)
1724 PROTOTYPE: &
1725 PPCODE:
1726{
1727 int count;
1728
1729 block_sig ();
1730 PUSHMARK (SP);
1731 PUTBACK;
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1733 SPAGAIN;
1734 unblock_sig ();
1735
1736 if (SvTRUE (ERRSV))
1737 croak (0);
1738
1739 XSRETURN (count);
1740}
1741
1742int 1619int
1743nreqs() 1620nreqs ()
1744 PROTOTYPE:
1745 CODE: 1621 CODE:
1746 RETVAL = nreqs; 1622 RETVAL = eio_nreqs ();
1747 OUTPUT: 1623 OUTPUT:
1748 RETVAL 1624 RETVAL
1749 1625
1750int 1626int
1751nready() 1627nready ()
1752 PROTOTYPE:
1753 CODE: 1628 CODE:
1754 RETVAL = get_nready (); 1629 RETVAL = eio_nready ();
1755 OUTPUT: 1630 OUTPUT:
1756 RETVAL 1631 RETVAL
1757 1632
1758int 1633int
1759npending() 1634npending ()
1760 PROTOTYPE:
1761 CODE: 1635 CODE:
1762 RETVAL = get_npending (); 1636 RETVAL = eio_npending ();
1763 OUTPUT: 1637 OUTPUT:
1764 RETVAL 1638 RETVAL
1765 1639
1766int 1640int
1767nthreads() 1641nthreads ()
1768 PROTOTYPE:
1769 CODE: 1642 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1643 RETVAL = eio_nthreads ();
1771 RETVAL = started;
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1773 OUTPUT: 1644 OUTPUT:
1774 RETVAL 1645 RETVAL
1775 1646
1647int
1648fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1649 CODE:
1650 RETVAL = posix_fadvise (fh, offset, length, advice);
1651 OUTPUT:
1652 RETVAL
1653
1654IV
1655sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1656 CODE:
1657 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1658 OUTPUT:
1659 RETVAL
1660
1661void
1662mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1663 PPCODE:
1664 sv_unmagic (scalar, MMAP_MAGIC);
1665{
1666 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1667 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1668 if (addr == (void *)-1)
1669 XSRETURN_NO;
1670
1671 sv_force_normal (scalar);
1672
1673 /* we store the length in mg_obj, as namlen is I32 :/ */
1674 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1675 ->mg_obj = (SV *)length;
1676
1677 SvUPGRADE (scalar, SVt_PV); /* nop... */
1678
1679 if (!(prot & PROT_WRITE))
1680 SvREADONLY_on (scalar);
1681
1682 if (SvLEN (scalar))
1683 Safefree (SvPVX (scalar));
1684
1685 SvPVX (scalar) = (char *)addr;
1686 SvCUR_set (scalar, length);
1687 SvLEN_set (scalar, 0);
1688 SvPOK_only (scalar);
1689
1690 XSRETURN_YES;
1691}
1692
1693void
1694munmap (SV *scalar)
1695 CODE:
1696 sv_unmagic (scalar, MMAP_MAGIC);
1697
1698int
1699madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1700 ALIAS:
1701 mprotect = 1
1702 CODE:
1703{
1704 STRLEN svlen;
1705 void *addr = SvPVbyte (scalar, svlen);
1706 size_t len = SvUV (length);
1707
1708 if (offset < 0)
1709 offset += svlen;
1710
1711 if (offset < 0 || offset > svlen)
1712 croak ("offset outside of scalar");
1713
1714 if (!SvOK (length) || len + offset > svlen)
1715 len = svlen - offset;
1716
1717 addr = (void *)(((intptr_t)addr) + offset);
1718 eio_page_align (&addr, &len);
1719
1720 switch (ix)
1721 {
1722 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1723 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1724 }
1725}
1726 OUTPUT:
1727 RETVAL
1728
1729int
1730munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1731 CODE:
1732{
1733 STRLEN svlen;
1734 void *addr = SvPVbyte (scalar, svlen);
1735 size_t len = SvUV (length);
1736
1737 if (offset < 0)
1738 offset += svlen;
1739
1740 if (offset < 0 || offset > svlen)
1741 croak ("offset outside of scalar");
1742
1743 if (!SvOK (length) || len + offset > svlen)
1744 len = svlen - offset;
1745
1746 addr = (void *)(((intptr_t)addr) + offset);
1747 eio_page_align (&addr, &len);
1748#if _POSIX_MEMLOCK_RANGE
1749 RETVAL = munlock (addr, len);
1750#else
1751 RETVAL = ((errno = ENOSYS), -1);
1752#endif
1753}
1754 OUTPUT:
1755 RETVAL
1756
1757int
1758munlockall ()
1759 CODE:
1760#if _POSIX_MEMLOCK
1761 munlockall ();
1762#else
1763 RETVAL = -1;
1764 errno = ENOSYS;
1765#endif
1766 OUTPUT:
1767 RETVAL
1768
1769void _on_next_submit (SV *cb)
1770 CODE:
1771 SvREFCNT_dec (on_next_submit);
1772 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1773
1776PROTOTYPES: DISABLE 1774PROTOTYPES: DISABLE
1777 1775
1776MODULE = IO::AIO PACKAGE = IO::AIO::WD
1777
1778BOOT:
1779{
1780 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1781 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1782}
1783
1784void
1785DESTROY (SV *self)
1786 CODE:
1787{
1788 aio_wd wd = SvAIO_WD (self);
1789#if HAVE_AT
1790 SV *callback = &PL_sv_undef;
1791 dREQ; /* clobbers next_pri :/ */
1792 req->type = EIO_WD_CLOSE;
1793 req->wd = wd;
1794 REQ_SEND;
1795#else
1796 eio_wd_close_sync (wd);
1797#endif
1798}
1799
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1800MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 1801
1780void 1802void
1781cancel (aio_req_ornot req) 1803cancel (aio_req_ornot req)
1782 CODE: 1804 CODE:
1783 req_cancel (req); 1805 eio_cancel (req);
1784 1806
1785void 1807void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1808cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1787 CODE: 1809 PPCODE:
1810{
1811 if (GIMME_V != G_VOID)
1812 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1813
1814 if (items > 1)
1815 {
1816 SV *cb_cv =get_cb (callback);
1817
1788 SvREFCNT_dec (req->callback); 1818 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 1819 req->callback = SvREFCNT_inc (cb_cv);
1820 }
1821}
1790 1822
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1823MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 1824
1793void 1825void
1794add (aio_req grp, ...) 1826add (aio_req grp, ...)
1795 PPCODE: 1827 PPCODE:
1796{ 1828{
1797 int i; 1829 int i;
1798 aio_req req;
1799
1800 if (main_sig && !block_sig_level)
1801 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1802 1830
1803 if (grp->int1 == 2) 1831 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1832 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 1833
1806 for (i = 1; i < items; ++i ) 1834 for (i = 1; i < items; ++i )
1807 { 1835 {
1836 aio_req req;
1837
1808 if (GIMME_V != G_VOID) 1838 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1839 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 1840
1811 req = SvAIO_REQ (ST (i)); 1841 req = SvAIO_REQ (ST (i));
1812 1842
1813 if (req) 1843 if (req)
1814 { 1844 eio_grp_add (grp, req);
1815 ++grp->size;
1816 req->grp = grp;
1817
1818 req->grp_prev = 0;
1819 req->grp_next = grp->grp_first;
1820
1821 if (grp->grp_first)
1822 grp->grp_first->grp_prev = req;
1823
1824 grp->grp_first = req;
1825 }
1826 } 1845 }
1827} 1846}
1828 1847
1829void 1848void
1830cancel_subs (aio_req_ornot req) 1849cancel_subs (aio_req_ornot req)
1839 AV *av; 1858 AV *av;
1840 1859
1841 grp->errorno = errno; 1860 grp->errorno = errno;
1842 1861
1843 av = newAV (); 1862 av = newAV ();
1863 av_extend (av, items - 1);
1844 1864
1845 for (i = 1; i < items; ++i ) 1865 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 1866 av_push (av, newSVsv (ST (i)));
1847 1867
1848 SvREFCNT_dec (grp->sv1); 1868 SvREFCNT_dec (grp->sv1);
1855 grp->errorno = errorno; 1875 grp->errorno = errorno;
1856 1876
1857void 1877void
1858limit (aio_req grp, int limit) 1878limit (aio_req grp, int limit)
1859 CODE: 1879 CODE:
1860 grp->int2 = limit; 1880 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 1881
1863void 1882void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 1883feed (aio_req grp, SV *callback=&PL_sv_undef)
1865 CODE: 1884 CODE:
1866{ 1885{
1867 SvREFCNT_dec (grp->sv2); 1886 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 1887 grp->sv2 = newSVsv (callback);
1888 grp->feed = aio_grp_feed;
1869 1889
1870 if (grp->int2 <= 0) 1890 if (grp->int2 <= 0)
1871 grp->int2 = 2; 1891 grp->int2 = 2;
1872 1892
1873 aio_grp_feed (grp); 1893 eio_grp_limit (grp, grp->int2);
1874} 1894}
1875 1895

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