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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.89 by root, Tue Oct 31 00:11:52 2006 UTC vs.
Revision 1.193 by root, Mon Jul 25 16:51:07 2011 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# 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
40# include <sys/socket.h> 69 #include <sys/time.h>
41# elif __solaris /* not yet */
42# 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;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 STRLEN stroffset; \
113 SV *self;
114
115#define EIO_NO_WRAPPERS 1
116
117#include "libeio/config.h"
118#include "libeio/eio.h"
119
120static int req_invoke (eio_req *req);
121#define EIO_FINISH(req) req_invoke (req)
122static void req_destroy (eio_req *grp);
123#define EIO_DESTROY(req) req_destroy (req)
124
125#include "libeio/eio.c"
126
127/* Linux/others */
128#ifndef O_ASYNC
129# define O_ASYNC 0
130#endif
131#ifndef O_DIRECT
132# define O_DIRECT 0
133#endif
134#ifndef O_NOATIME
135# define O_NOATIME 0
136#endif
137
138/* POSIX */
139#ifndef O_CLOEXEC
140# define O_CLOEXEC 0
141#endif
142#ifndef O_NOFOLLOW
143# define O_NOFOLLOW 0
144#endif
145#ifndef O_NOCTTY
146# define O_NOCTTY 0
147#endif
148#ifndef O_NONBLOCK
149# define O_NONBLOCK 0
150#endif
151#ifndef O_EXEC
152# define O_EXEC 0
153#endif
154#ifndef O_SEARCH
155# define O_SEARCH 0
156#endif
157#ifndef O_DIRECTORY
158# define O_DIRECTORY 0
159#endif
160#ifndef O_DSYNC
161# define O_DSYNC 0
162#endif
163#ifndef O_RSYNC
164# define O_RSYNC 0
165#endif
166#ifndef O_SYNC
167# define O_SYNC 0
168#endif
169#ifndef O_TTY_INIT
170# define O_TTY_INIT 0
171#endif
172
173#ifndef POSIX_FADV_NORMAL
174# define POSIX_FADV_NORMAL 0
175#endif
176#ifndef POSIX_FADV_SEQUENTIAL
177# define POSIX_FADV_SEQUENTIAL 0
178#endif
179#ifndef POSIX_FADV_RANDOM
180# define POSIX_FADV_RANDOM 0
181#endif
182#ifndef POSIX_FADV_NOREUSE
183# define POSIX_FADV_NOREUSE 0
184#endif
185#ifndef POSIX_FADV_WILLNEED
186# define POSIX_FADV_WILLNEED 0
187#endif
188#ifndef POSIX_FADV_DONTNEED
189# define POSIX_FADV_DONTNEED 0
190#endif
191
192#if !HAVE_POSIX_FADVISE
193# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
194#endif
195
196#ifndef POSIX_MADV_NORMAL
197# define POSIX_MADV_NORMAL 0
198#endif
199#ifndef POSIX_MADV_SEQUENTIAL
200# define POSIX_MADV_SEQUENTIAL 0
201#endif
202#ifndef POSIX_MADV_RANDOM
203# define POSIX_MADV_RANDOM 0
204#endif
205#ifndef POSIX_MADV_WILLNEED
206# define POSIX_MADV_WILLNEED 0
207#endif
208#ifndef POSIX_MADV_DONTNEED
209# define POSIX_MADV_DONTNEED 0
210#endif
211
212#if !HAVE_POSIX_MADVISE
213# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
214#endif
215
216#ifndef PROT_NONE
217# define PROT_NONE 0
218#endif
219#ifndef PROT_READ
220# define PROT_READ 0
221#endif
222#ifndef PROT_WRITE
223# define PROT_READ 0
224#endif
225#ifndef PROT_EXEC
226# define PROT_EXEC 0
227#endif
228
229#ifndef ST_RDONLY
230# define ST_RDONLY 0
231#endif
232#ifndef ST_NOSUID
233# define ST_NOSUID 0
234#endif
235#ifndef ST_NODEV
236# define ST_NODEV 0
237#endif
238#ifndef ST_NOEXEC
239# define ST_NOEXEC 0
240#endif
241#ifndef ST_SYNCHRONOUS
242# define ST_SYNCHRONOUS 0
243#endif
244#ifndef ST_MANDLOCK
245# define ST_MANDLOCK 0
246#endif
247#ifndef ST_WRITE
248# define ST_WRITE 0
249#endif
250#ifndef ST_APPEND
251# define ST_APPEND 0
252#endif
253#ifndef ST_IMMUTABLE
254# define ST_IMMUTABLE 0
255#endif
256#ifndef ST_NOATIME
257# define ST_NOATIME 0
258#endif
259#ifndef ST_NODIRATIME
260# define ST_NODIRATIME 0
261#endif
262#ifndef ST_RELATIME
263# define ST_RELATIME 0
264#endif
265
266#ifndef S_IFIFO
267# define S_IFIFO 0
268#endif
269#ifndef S_IFCHR
270# define S_IFCHR 0
271#endif
272#ifndef S_IFBLK
273# define S_IFBLK 0
274#endif
275#ifndef S_IFLNK
276# define S_IFLNK 0
277#endif
278#ifndef S_IFREG
279# define S_IFREG 0
280#endif
281#ifndef S_IFDIR
282# define S_IFDIR 0
283#endif
284#ifndef S_IFWHT
285# define S_IFWHT 0
286#endif
287#ifndef S_IFSOCK
288# define S_IFSOCK 0
289#endif
290
291#ifndef MAP_ANONYMOUS
292# ifdef MAP_ANON
293# define MAP_ANONYMOUS MAP_ANON
43# else 294# else
44# error sendfile support requested but not available 295# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 296# endif
46#endif 297#endif
47 298#ifndef MAP_HUGETLB
48/* number of seconds after which idle threads exit */ 299# define MAP_HUGETLB 0
49#define IDLE_TIMEOUT 10
50
51/* used for struct dirent, AIX doesn't provide it */
52#ifndef NAME_MAX
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 300#endif
301#ifndef MAP_LOCKED
302# define MAP_LOCKED 0
79#endif 303#endif
304#ifndef MAP_NORESERVE
305# define MAP_NORESERVE 0
306#endif
307#ifndef MAP_POPULATE
308# define MAP_POPULATE 0
309#endif
310#ifndef MAP_NONBLOCK
311# define MAP_NONBLOCK 0
312#endif
80 313
81/* buffer size for various temporary buffers */ 314#ifndef makedev
82#define AIO_BUFSIZE 65536 315# define makedev(maj,min) (((maj) << 8) | (min))
316#endif
317#ifndef major
318# define major(dev) ((dev) >> 8)
319#endif
320#ifndef minor
321# define minor(dev) ((dev) & 0xff)
322#endif
83 323
84#define dBUF \ 324#ifndef PAGESIZE
85 char *aio_buf; \ 325# define PAGESIZE sysconf (_SC_PAGESIZE)
86 LOCK (wrklock); \ 326#endif
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \
89 if (!aio_buf) \
90 return -1;
91 327
92enum { 328enum {
93 REQ_QUIT, 329 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104}; 330};
105 331
106#define AIO_REQ_KLASS "IO::AIO::REQ"
107#define AIO_GRP_KLASS "IO::AIO::GRP"
108
109typedef struct aio_cb
110{
111 struct aio_cb *volatile next;
112
113 SV *callback, *fh;
114 SV *sv1, *sv2;
115 void *ptr1, *ptr2;
116 off_t offs;
117 size_t size;
118 ssize_t result;
119
120 STRLEN stroffset;
121 int type;
122 int int1, int2;
123 int errorno;
124 mode_t mode; /* open */
125
126 unsigned char flags;
127 unsigned char pri;
128
129 SV *self; /* the perl counterpart of this request, if any */
130 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
131} aio_cb;
132
133enum {
134 FLAG_CANCELLED = 0x01, /* request was cancelled */
135 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
136 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
137};
138
139typedef aio_cb *aio_req; 332typedef eio_req *aio_req;
140typedef aio_cb *aio_req_ornot; 333typedef eio_req *aio_req_ornot;
141 334
142enum { 335static SV *on_next_submit;
143 PRI_MIN = -4, 336static int next_pri = EIO_PRI_DEFAULT;
144 PRI_MAX = 4, 337static int max_outstanding;
145 338
146 DEFAULT_PRI = 0, 339static s_epipe respipe;
147 PRI_BIAS = -PRI_MIN,
148 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
149};
150 340
151#define AIO_TICKS ((1000000 + 1023) >> 10)
152
153static unsigned int max_poll_time = 0;
154static unsigned int max_poll_reqs = 0;
155
156/* calculcate time difference in ~1/AIO_TICKS of a second */
157static int tvdiff (struct timeval *tv1, struct timeval *tv2)
158{
159 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
160 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
161}
162
163static int next_pri = DEFAULT_PRI + PRI_BIAS;
164
165static unsigned int started, idle, wanted;
166
167#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
168# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
169#else
170# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171#endif
172
173#define LOCK(mutex) pthread_mutex_lock (&(mutex))
174#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
175
176/* worker threads management */
177static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
178
179typedef struct worker {
180 /* locked by wrklock */
181 struct worker *prev, *next;
182
183 pthread_t tid;
184
185 /* locked by reslock, reqlock or wrklock */
186 aio_req req; /* currently processed request */
187 void *dbuf;
188 DIR *dirp;
189} worker;
190
191static worker wrk_first = { &wrk_first, &wrk_first, 0 };
192
193static void worker_clear (worker *wrk)
194{
195 if (wrk->dirp)
196 {
197 closedir (wrk->dirp);
198 wrk->dirp = 0;
199 }
200
201 if (wrk->dbuf)
202 {
203 free (wrk->dbuf);
204 wrk->dbuf = 0;
205 }
206}
207
208static void worker_free (worker *wrk)
209{
210 wrk->next->prev = wrk->prev;
211 wrk->prev->next = wrk->next;
212
213 free (wrk);
214}
215
216static volatile unsigned int nreqs, nready, npending;
217static volatile unsigned int max_idle = 4;
218static volatile unsigned int max_outstanding = 0xffffffff;
219static int respipe [2];
220
221static pthread_mutex_t reslock = AIO_MUTEX_INIT;
222static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
223static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
224
225#if WORDACCESS_UNSAFE
226
227static unsigned int get_nready ()
228{
229 unsigned int retval;
230
231 LOCK (reqlock);
232 retval = nready;
233 UNLOCK (reqlock);
234
235 return retval;
236}
237
238static unsigned int get_npending ()
239{
240 unsigned int retval;
241
242 LOCK (reslock);
243 retval = npending;
244 UNLOCK (reslock);
245
246 return retval;
247}
248
249static unsigned int get_nthreads ()
250{
251 unsigned int retval;
252
253 LOCK (wrklock);
254 retval = started;
255 UNLOCK (wrklock);
256
257 return retval;
258}
259
260#else
261
262# define get_nready() nready
263# define get_npending() npending
264# define get_nthreads() started
265
266#endif
267
268/*
269 * a somewhat faster data structure might be nice, but
270 * with 8 priorities this actually needs <20 insns
271 * per shift, the most expensive operation.
272 */
273typedef struct {
274 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
275 int size;
276} reqq;
277
278static reqq req_queue;
279static reqq res_queue;
280
281int reqq_push (reqq *q, aio_req req)
282{
283 int pri = req->pri;
284 req->next = 0;
285
286 if (q->qe[pri])
287 {
288 q->qe[pri]->next = req;
289 q->qe[pri] = req;
290 }
291 else
292 q->qe[pri] = q->qs[pri] = req;
293
294 return q->size++;
295}
296
297aio_req reqq_shift (reqq *q)
298{
299 int pri;
300
301 if (!q->size)
302 return 0;
303
304 --q->size;
305
306 for (pri = NUM_PRI; pri--; )
307 {
308 aio_req req = q->qs[pri];
309
310 if (req)
311 {
312 if (!(q->qs[pri] = req->next))
313 q->qe[pri] = 0;
314
315 return req;
316 }
317 }
318
319 abort ();
320}
321
322static int poll_cb ();
323static void req_invoke (aio_req req);
324static void req_free (aio_req req); 341static void req_destroy (aio_req req);
325static void req_cancel (aio_req req); 342static void req_cancel (aio_req req);
326 343
344static void want_poll (void)
345{
346 /* write a dummy byte to the pipe so fh becomes ready */
347 s_epipe_signal (&respipe);
348}
349
350static void done_poll (void)
351{
352 /* read any signals sent by the worker threads */
353 s_epipe_drain (&respipe);
354}
355
327/* must be called at most once */ 356/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 357static SV *req_sv (aio_req req, HV *stash)
329{ 358{
330 if (!req->self) 359 if (!req->self)
331 { 360 {
332 req->self = (SV *)newHV (); 361 req->self = (SV *)newHV ();
333 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 362 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
334 } 363 }
335 364
336 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 365 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
337} 366}
338 367
339static aio_req SvAIO_REQ (SV *sv) 368static aio_req SvAIO_REQ (SV *sv)
340{ 369{
341 MAGIC *mg; 370 MAGIC *mg;
342 371
343 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 372 if (!SvROK (sv)
373 || (SvSTASH (SvRV (sv)) != aio_grp_stash
374 && SvSTASH (SvRV (sv)) != aio_req_stash
375 && !sv_derived_from (sv, "IO::AIO::REQ")))
344 croak ("object of class " AIO_REQ_KLASS " expected"); 376 croak ("object of class IO::AIO::REQ expected");
345 377
346 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 378 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
347 379
348 return mg ? (aio_req)mg->mg_ptr : 0; 380 return mg ? (aio_req)mg->mg_ptr : 0;
349} 381}
350 382
351static void aio_grp_feed (aio_req grp) 383static void aio_grp_feed (aio_req grp)
352{ 384{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 385 if (grp->sv2 && SvOK (grp->sv2))
354 { 386 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 387 dSP;
360 388
361 ENTER; 389 ENTER;
362 SAVETMPS; 390 SAVETMPS;
363 PUSHMARK (SP); 391 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 392 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 393 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 394 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 395 SPAGAIN;
368 FREETMPS; 396 FREETMPS;
369 LEAVE; 397 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 } 398 }
380} 399}
381 400
382static void aio_grp_dec (aio_req grp) 401static void req_submit (eio_req *req)
383{ 402{
384 --grp->size; 403 eio_submit (req);
385 404
386 /* call feeder, if applicable */ 405 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 406 {
392 req_invoke (grp); 407 dSP;
393 req_free (grp); 408 SV *cb = sv_2mortal (on_next_submit);
409
410 on_next_submit = 0;
411
412 PUSHMARK (SP);
413 PUTBACK;
414 call_sv (cb, G_DISCARD | G_EVAL);
394 } 415 }
395} 416}
396 417
397static void req_invoke (aio_req req) 418static int req_invoke (eio_req *req)
398{ 419{
399 dSP;
400
401 if (req->flags & FLAG_SV1_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 421 SvREADONLY_off (req->sv2);
403 422
404 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 423 if (!EIO_CANCELLED (req) && req->callback)
405 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
406 ENTER; 429 ENTER;
407 SAVETMPS; 430 SAVETMPS;
408 PUSHMARK (SP); 431 PUSHMARK (SP);
409 EXTEND (SP, 1); 432 EXTEND (SP, 1);
410 433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
441 else
442 {
443 sv_result = newSViv (req->result);
444 SvREADONLY_on (sv_result);
445 }
446
411 switch (req->type) 447 switch (req->type)
412 { 448 {
413 case REQ_READDIR: 449 case EIO_READDIR:
414 { 450 {
415 SV *rv = &PL_sv_undef; 451 SV *rv = &PL_sv_undef;
416 452
417 if (req->result >= 0) 453 if (req->result >= 0)
418 { 454 {
419 int i; 455 int i;
420 char *buf = req->ptr2; 456 char *names = (char *)req->ptr2;
457 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
421 AV *av = newAV (); 458 AV *av = newAV ();
422 459
423 av_extend (av, req->result - 1); 460 av_extend (av, req->result - 1);
424 461
425 for (i = 0; i < req->result; ++i) 462 for (i = 0; i < req->result; ++i)
426 { 463 {
427 SV *sv = newSVpv (buf, 0); 464 if (req->int1 & EIO_READDIR_DENTS)
465 {
466 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428 467
468 if (req->int1 & EIO_READDIR_CUSTOM2)
469 {
470 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
471 AV *avent = newAV ();
472
473 av_extend (avent, 2);
474
475 if (!sv_type [ent->type])
476 {
477 sv_type [ent->type] = newSViv (ent->type);
478 SvREADONLY_on (sv_type [ent->type]);
479 }
480
481 av_store (avent, 0, namesv);
482 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
483 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
484
485 av_store (av, i, newRV_noinc ((SV *)avent));
486 }
487 else
429 av_store (av, i, sv); 488 av_store (av, i, namesv);
489
490 ++ent;
491 }
492 else
493 {
494 SV *name = newSVpv (names, 0);
495 av_store (av, i, name);
430 buf += SvCUR (sv) + 1; 496 names += SvCUR (name) + 1;
497 }
431 } 498 }
432 499
433 rv = sv_2mortal (newRV_noinc ((SV *)av)); 500 rv = sv_2mortal (newRV_noinc ((SV *)av));
434 } 501 }
435 502
436 PUSHs (rv); 503 PUSHs (rv);
504
505 if (req->int1 & EIO_READDIR_CUSTOM1)
506 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
437 } 507 }
438 break; 508 break;
439 509
440 case REQ_OPEN: 510 case EIO_OPEN:
441 { 511 {
442 /* convert fd to fh */ 512 /* convert fd to fh */
443 SV *fh; 513 SV *fh = &PL_sv_undef;
444 514
445 PUSHs (sv_2mortal (newSViv (req->result))); 515 if (req->result >= 0)
446 PUTBACK; 516 {
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 517 GV *gv = (GV *)sv_newmortal ();
448 SPAGAIN; 518 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519 char sym [64];
520 int symlen;
521
522 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523 gv_init (gv, aio_stash, sym, symlen, 0);
449 524
450 fh = SvREFCNT_inc (POPs); 525 symlen = snprintf (
526 sym,
527 sizeof (sym),
528 "%s&=%d",
529 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530 (int)req->result
531 );
451 532
533 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534 fh = (SV *)gv;
535 }
536
452 PUSHMARK (SP); 537 PUSHs (fh);
453 XPUSHs (sv_2mortal (fh));
454 } 538 }
455 break; 539 break;
456 540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546#ifndef _WIN32
547 if (req->result >= 0)
548 {
549 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
550 HV *hv = newHV ();
551
552 rv = sv_2mortal (newRV_noinc ((SV *)hv));
553
554 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
555 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
556 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
557 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
558 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
559 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
560 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
561 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
562 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
563 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
564 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
565 }
566#endif
567
568 PUSHs (rv);
569 }
570
571 break;
572
457 case REQ_GROUP: 573 case EIO_GROUP:
458 req->int1 = 2; /* mark group as finished */ 574 req->int1 = 2; /* mark group as finished */
459 575
460 if (req->sv1) 576 if (req->sv1)
461 { 577 {
462 int i; 578 int i;
466 for (i = 0; i <= AvFILL (av); ++i) 582 for (i = 0; i <= AvFILL (av); ++i)
467 PUSHs (*av_fetch (av, i, 0)); 583 PUSHs (*av_fetch (av, i, 0));
468 } 584 }
469 break; 585 break;
470 586
471 case REQ_NOP: 587 case EIO_NOP:
472 case REQ_BUSY: 588 case EIO_BUSY:
473 break; 589 break;
474 590
475 case REQ_READLINK: 591 case EIO_READLINK:
592 case EIO_REALPATH:
476 if (req->result > 0) 593 if (req->result > 0)
477 { 594 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
478 SvCUR_set (req->sv1, req->result);
479 *SvEND (req->sv1) = 0;
480 PUSHs (req->sv1);
481 }
482 break; 595 break;
483 596
484 case REQ_STAT: 597 case EIO_STAT:
485 case REQ_LSTAT: 598 case EIO_LSTAT:
486 case REQ_FSTAT: 599 case EIO_FSTAT:
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 600 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result; 601 PL_laststatval = req->result;
602 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
489 PL_statcache = *(Stat_t *)(req->ptr2); 603 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
490 PUSHs (sv_2mortal (newSViv (req->result))); 604 PUSHs (sv_result);
491 break; 605 break;
492 606
493 case REQ_READ: 607 case EIO_READ:
608 {
494 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 609 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
495 *SvEND (req->sv1) = 0; 610 *SvEND (req->sv2) = 0;
496 PUSHs (sv_2mortal (newSViv (req->result))); 611 SvPOK_only (req->sv2);
612 SvSETMAGIC (req->sv2);
613 PUSHs (sv_result);
614 }
497 break; 615 break;
498 616
617 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
618 if (req->result > 0)
619 SvIV_set (sv_result, 0);
620 /* FALLTHROUGH */
621
499 default: 622 default:
500 PUSHs (sv_2mortal (newSViv (req->result))); 623 PUSHs (sv_result);
501 break; 624 break;
502 } 625 }
503 626
504 errno = req->errorno; 627 errno = req->errorno;
505 628
506 PUTBACK; 629 PUTBACK;
507 call_sv (req->callback, G_VOID | G_EVAL); 630 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508 SPAGAIN; 631 SPAGAIN;
632
633 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
634 SvREFCNT_dec (sv_result);
635 else
636 sv_result_cache = sv_result;
509 637
510 FREETMPS; 638 FREETMPS;
511 LEAVE; 639 LEAVE;
640
641 PUTBACK;
512 } 642 }
513 643
514 if (req->grp) 644 return !!SvTRUE (ERRSV);
515 {
516 aio_req grp = req->grp;
517
518 /* unlink request */
519 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
520 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
521
522 if (grp->grp_first == req)
523 grp->grp_first = req->grp_next;
524
525 aio_grp_dec (grp);
526 }
527
528 if (SvTRUE (ERRSV))
529 {
530 req_free (req);
531 croak (0);
532 }
533} 645}
534 646
535static void req_free (aio_req req) 647static void req_destroy (aio_req req)
536{ 648{
537 if (req->self) 649 if (req->self)
538 { 650 {
539 sv_unmagic (req->self, PERL_MAGIC_ext); 651 sv_unmagic (req->self, PERL_MAGIC_ext);
540 SvREFCNT_dec (req->self); 652 SvREFCNT_dec (req->self);
541 } 653 }
542 654
543 SvREFCNT_dec (req->fh);
544 SvREFCNT_dec (req->sv1); 655 SvREFCNT_dec (req->sv1);
545 SvREFCNT_dec (req->sv2); 656 SvREFCNT_dec (req->sv2);
546 SvREFCNT_dec (req->callback); 657 SvREFCNT_dec (req->callback);
547 658
548 if (req->flags & FLAG_PTR2_FREE)
549 free (req->ptr2);
550
551 Safefree (req); 659 Safefree (req);
552} 660}
553 661
554static void req_cancel_subs (aio_req grp) 662static void req_cancel_subs (aio_req grp)
555{ 663{
556 aio_req sub;
557
558 if (grp->type != REQ_GROUP) 664 if (grp->type != EIO_GROUP)
559 return; 665 return;
560 666
561 SvREFCNT_dec (grp->sv2); 667 SvREFCNT_dec (grp->sv2);
562 grp->sv2 = 0; 668 grp->sv2 = 0;
563 669
564 for (sub = grp->grp_first; sub; sub = sub->grp_next) 670 eio_grp_cancel (grp);
565 req_cancel (sub);
566} 671}
567 672
568static void req_cancel (aio_req req) 673static void create_respipe (void)
569{ 674{
570 req->flags |= FLAG_CANCELLED; 675 if (s_epipe_renew (&respipe))
571 676 croak ("IO::AIO: unable to initialize result pipe");
572 req_cancel_subs (req);
573} 677}
574 678
575static void *aio_proc(void *arg);
576
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590#ifdef PTHREAD_SCOPE_PROCESS
591 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
592#endif
593
594 sigfillset (&fullsigset);
595
596 LOCK (wrklock);
597 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
598
599 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
600 {
601 wrk->prev = &wrk_first;
602 wrk->next = wrk_first.next;
603 wrk_first.next->prev = wrk;
604 wrk_first.next = wrk;
605 ++started;
606 }
607 else
608 free (wrk);
609
610 sigprocmask (SIG_SETMASK, &oldsigset, 0);
611 UNLOCK (wrklock);
612}
613
614static void maybe_start_thread ()
615{
616 if (get_nthreads () >= wanted)
617 return;
618
619 /* todo: maybe use idle here, but might be less exact */
620 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
621 return;
622
623 start_thread ();
624}
625
626static void req_send (aio_req req)
627{
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 pthread_cond_signal (&reqwait);
634 UNLOCK (reqlock);
635
636 maybe_start_thread ();
637}
638
639static void end_thread (void)
640{
641 aio_req req;
642
643 Newz (0, req, 1, aio_cb);
644
645 req->type = REQ_QUIT;
646 req->pri = PRI_MAX + PRI_BIAS;
647
648 LOCK (reqlock);
649 reqq_push (&req_queue, req);
650 pthread_cond_signal (&reqwait);
651 UNLOCK (reqlock);
652
653 LOCK (wrklock);
654 --started;
655 UNLOCK (wrklock);
656}
657
658static void set_max_idle (int nthreads)
659{
660 if (WORDACCESS_UNSAFE) LOCK (reqlock);
661 max_idle = nthreads <= 0 ? 1 : nthreads;
662 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
663}
664
665static void min_parallel (int nthreads)
666{
667 if (wanted < nthreads)
668 wanted = nthreads;
669}
670
671static void max_parallel (int nthreads)
672{
673 if (wanted > nthreads)
674 wanted = nthreads;
675
676 while (started > wanted)
677 end_thread ();
678}
679
680static void poll_wait () 679static void poll_wait (void)
681{ 680{
682 fd_set rfd;
683
684 while (nreqs) 681 while (eio_nreqs ())
685 { 682 {
686 int size; 683 int size;
687 if (WORDACCESS_UNSAFE) LOCK (reslock); 684
685 X_LOCK (reslock);
688 size = res_queue.size; 686 size = res_queue.size;
689 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 687 X_UNLOCK (reslock);
690 688
691 if (size) 689 if (size)
692 return; 690 return;
693 691
694 maybe_start_thread (); 692 etp_maybe_start_thread ();
695 693
696 FD_ZERO(&rfd); 694 s_epipe_wait (&respipe);
697 FD_SET(respipe [0], &rfd);
698
699 select (respipe [0] + 1, &rfd, 0, 0, 0);
700 } 695 }
701} 696}
702 697
703static int poll_cb () 698static int poll_cb (void)
704{ 699{
705 dSP;
706 int count = 0;
707 int maxreqs = max_poll_reqs;
708 int do_croak = 0;
709 struct timeval tv_start, tv_now;
710 aio_req req;
711
712 if (max_poll_time)
713 gettimeofday (&tv_start, 0);
714
715 for (;;) 700 for (;;)
716 { 701 {
717 for (;;) 702 int res = eio_poll ();
718 {
719 maybe_start_thread ();
720 703
721 LOCK (reslock); 704 if (res > 0)
722 req = reqq_shift (&res_queue);
723
724 if (req)
725 {
726 --npending;
727
728 if (!res_queue.size)
729 {
730 /* read any signals sent by the worker threads */
731 char buf [32];
732 while (read (respipe [0], buf, 32) == 32)
733 ;
734 }
735 }
736
737 UNLOCK (reslock);
738
739 if (!req)
740 break;
741
742 --nreqs;
743
744 if (req->type == REQ_GROUP && req->size)
745 {
746 req->int1 = 1; /* mark request as delayed */
747 continue;
748 }
749 else
750 {
751 req_invoke (req);
752
753 count++;
754 }
755
756 req_free (req);
757
758 if (maxreqs && !--maxreqs)
759 break;
760
761 if (max_poll_time)
762 {
763 gettimeofday (&tv_now, 0);
764
765 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
766 break;
767 }
768 }
769
770 if (nreqs <= max_outstanding)
771 break; 705 croak (0);
706
707 if (!max_outstanding || max_outstanding > eio_nreqs ())
708 return res;
772 709
773 poll_wait (); 710 poll_wait ();
774
775 ++maxreqs;
776 } 711 }
777
778 return count;
779} 712}
780 713
781static void create_pipe () 714static void ecb_cold
715reinit (void)
782{ 716{
783 if (pipe (respipe)) 717 create_respipe ();
784 croak ("unable to initialize result pipe");
785 718
786 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 719 if (eio_init (want_poll, done_poll) < 0)
787 croak ("cannot set result pipe to nonblocking mode"); 720 croak ("IO::AIO: unable to initialise eio library");
788
789 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791} 721}
792 722
793/*****************************************************************************/ 723/*****************************************************************************/
794/* work around various missing functions */
795 724
796#if !HAVE_PREADWRITE 725#if !_POSIX_MAPPED_FILES
797# define pread aio_pread 726# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
798# define pwrite aio_pwrite 727# define munmap(addr,length) (errno = ENOSYS, -1)
799
800/*
801 * make our pread/pwrite safe against themselves, but not against
802 * normal read/write by using a mutex. slows down execution a lot,
803 * but that's your problem, not mine.
804 */
805static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
806
807static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
808{
809 ssize_t res;
810 off_t ooffset;
811
812 LOCK (preadwritelock);
813 ooffset = lseek (fd, 0, SEEK_CUR);
814 lseek (fd, offset, SEEK_SET);
815 res = read (fd, buf, count);
816 lseek (fd, ooffset, SEEK_SET);
817 UNLOCK (preadwritelock);
818
819 return res;
820}
821
822static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
823{
824 ssize_t res;
825 off_t ooffset;
826
827 LOCK (preadwritelock);
828 ooffset = lseek (fd, 0, SEEK_CUR);
829 lseek (fd, offset, SEEK_SET);
830 res = write (fd, buf, count);
831 lseek (fd, offset, SEEK_SET);
832 UNLOCK (preadwritelock);
833
834 return res;
835}
836#endif
837
838#if !HAVE_FDATASYNC
839# define fdatasync fsync
840#endif
841
842#if !HAVE_READAHEAD
843# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
844
845static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
846{
847 dBUF;
848
849 while (count > 0)
850 {
851 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
852
853 pread (fd, aio_buf, len, offset);
854 offset += len;
855 count -= len;
856 }
857
858 errno = 0;
859}
860
861#endif
862
863#if !HAVE_READDIR_R
864# define readdir_r aio_readdir_r
865
866static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
867
868static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
869{
870 struct dirent *e;
871 int errorno;
872
873 LOCK (readdirlock);
874
875 e = readdir (dirp);
876 errorno = errno;
877
878 if (e)
879 {
880 *res = ent;
881 strcpy (ent->d_name, e->d_name);
882 }
883 else
884 *res = 0;
885
886 UNLOCK (readdirlock);
887
888 errno = errorno;
889 return e ? 0 : -1;
890}
891#endif
892
893/* sendfile always needs emulation */
894static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
895{
896 ssize_t res;
897
898 if (!count)
899 return 0;
900
901#if HAVE_SENDFILE
902# if __linux
903 res = sendfile (ofd, ifd, &offset, count);
904
905# elif __freebsd
906 /*
907 * Of course, the freebsd sendfile is a dire hack with no thoughts
908 * wasted on making it similar to other I/O functions.
909 */
910 {
911 off_t sbytes;
912 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
913
914 if (res < 0 && sbytes)
915 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
916 res = sbytes;
917 }
918
919# elif __hpux
920 res = sendfile (ofd, ifd, offset, count, 0, 0);
921
922# elif __solaris
923 {
924 struct sendfilevec vec;
925 size_t sbytes;
926
927 vec.sfv_fd = ifd;
928 vec.sfv_flag = 0;
929 vec.sfv_off = offset;
930 vec.sfv_len = count;
931
932 res = sendfilev (ofd, &vec, 1, &sbytes);
933
934 if (res < 0 && sbytes)
935 res = sbytes;
936 }
937
938# endif 728#endif
939#else
940 res = -1;
941 errno = ENOSYS;
942#endif
943 729
944 if (res < 0 730#if !_POSIX_MEMORY_PROTECTION
945 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 731# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
946#if __solaris 732# define PROT_NONE 0
947 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 733# define PROT_WRITE 0
734# define MAP_PRIVATE 0
735# define MAP_SHARED 0
736# define MAP_FIXED 0
948#endif 737#endif
949 )
950 )
951 {
952 /* emulate sendfile. this is a major pain in the ass */
953 dBUF;
954 738
955 res = 0; 739#define MMAP_MAGIC PERL_MAGIC_ext
956 740
957 while (count) 741static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
958 { 742{
959 ssize_t cnt; 743 int old_errno = errno;
960 744 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
961 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 745 errno = old_errno;
962 746
963 if (cnt <= 0) 747 mg->mg_obj = 0; /* just in case */
964 {
965 if (cnt && !res) res = -1;
966 break;
967 }
968 748
969 cnt = write (ofd, aio_buf, cnt); 749 SvREADONLY_off (sv);
970 750
971 if (cnt <= 0) 751 if (SvPVX (sv) != mg->mg_ptr)
972 { 752 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
973 if (cnt && !res) res = -1;
974 break;
975 }
976 753
977 offset += cnt; 754 SvCUR_set (sv, 0);
978 res += cnt; 755 SvPVX (sv) = 0;
979 count -= cnt; 756 SvOK_off (sv);
980 }
981 }
982 757
983 return res; 758 return 0;
984} 759}
985 760
986/* read a full directory */ 761static MGVTBL mmap_vtbl = {
987static void scandir_ (aio_req req, worker *self) 762 0, 0, 0, 0, mmap_free
988{ 763};
989 DIR *dirp;
990 union
991 {
992 struct dirent d;
993 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
994 } *u;
995 struct dirent *entp;
996 char *name, *names;
997 int memlen = 4096;
998 int memofs = 0;
999 int res = 0;
1000 int errorno;
1001
1002 LOCK (wrklock);
1003 self->dirp = dirp = opendir (req->ptr1);
1004 self->dbuf = u = malloc (sizeof (*u));
1005 req->flags |= FLAG_PTR2_FREE;
1006 req->ptr2 = names = malloc (memlen);
1007 UNLOCK (wrklock);
1008
1009 if (dirp && u && names)
1010 for (;;)
1011 {
1012 errno = 0;
1013 readdir_r (dirp, &u->d, &entp);
1014
1015 if (!entp)
1016 break;
1017
1018 name = entp->d_name;
1019
1020 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1021 {
1022 int len = strlen (name) + 1;
1023
1024 res++;
1025
1026 while (memofs + len > memlen)
1027 {
1028 memlen *= 2;
1029 LOCK (wrklock);
1030 req->ptr2 = names = realloc (names, memlen);
1031 UNLOCK (wrklock);
1032
1033 if (!names)
1034 break;
1035 }
1036
1037 memcpy (names + memofs, name, len);
1038 memofs += len;
1039 }
1040 }
1041
1042 if (errno)
1043 res = -1;
1044
1045 req->result = res;
1046}
1047 764
1048/*****************************************************************************/ 765/*****************************************************************************/
1049 766
1050static void *aio_proc (void *thr_arg) 767static SV * get_cb (SV *cb_sv)
1051{ 768{
1052 aio_req req; 769 SvGETMAGIC (cb_sv);
1053 struct timespec ts; 770 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1054 worker *self = (worker *)thr_arg;
1055
1056 /* try to distribute timeouts somewhat evenly */
1057 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1058 * (1000000000UL / 1024UL);
1059
1060 for (;;)
1061 {
1062 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1063
1064 LOCK (reqlock);
1065
1066 for (;;)
1067 {
1068 self->req = req = reqq_shift (&req_queue);
1069
1070 if (req)
1071 break;
1072
1073 ++idle;
1074
1075 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1076 == ETIMEDOUT)
1077 {
1078 if (idle > max_idle)
1079 {
1080 --idle;
1081 UNLOCK (reqlock);
1082 LOCK (wrklock);
1083 --started;
1084 UNLOCK (wrklock);
1085 goto quit;
1086 }
1087
1088 /* we are allowed to idle, so do so without any timeout */
1089 pthread_cond_wait (&reqwait, &reqlock);
1090 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091 }
1092
1093 --idle;
1094 }
1095
1096 --nready;
1097
1098 UNLOCK (reqlock);
1099
1100 errno = 0; /* strictly unnecessary */
1101
1102 if (!(req->flags & FLAG_CANCELLED))
1103 switch (req->type)
1104 {
1105 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1106 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1107
1108 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1109 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1110
1111 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1113 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1114
1115 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1116 case REQ_CLOSE: req->result = close (req->int1); break;
1117 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118 case REQ_RMDIR: req->result = rmdir (req->ptr1); 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 /* write a dummy byte to the pipe so fh becomes ready */
1159 write (respipe [1], &respipe, 1);
1160
1161 self->req = 0;
1162 worker_clear (self);
1163
1164 UNLOCK (reslock);
1165 }
1166
1167quit:
1168 LOCK (wrklock);
1169 worker_free (self);
1170 UNLOCK (wrklock);
1171
1172 return 0;
1173}
1174
1175/*****************************************************************************/
1176
1177static void atfork_prepare (void)
1178{
1179 LOCK (wrklock);
1180 LOCK (reqlock);
1181 LOCK (reslock);
1182#if !HAVE_PREADWRITE
1183 LOCK (preadwritelock);
1184#endif
1185#if !HAVE_READDIR_R
1186 LOCK (readdirlock);
1187#endif
1188}
1189
1190static void atfork_parent (void)
1191{
1192#if !HAVE_READDIR_R
1193 UNLOCK (readdirlock);
1194#endif
1195#if !HAVE_PREADWRITE
1196 UNLOCK (preadwritelock);
1197#endif
1198 UNLOCK (reslock);
1199 UNLOCK (reqlock);
1200 UNLOCK (wrklock);
1201}
1202
1203static void atfork_child (void)
1204{
1205 aio_req prv;
1206
1207 while (prv = reqq_shift (&req_queue))
1208 req_free (prv);
1209
1210 while (prv = reqq_shift (&res_queue))
1211 req_free (prv);
1212
1213 while (wrk_first.next != &wrk_first)
1214 {
1215 worker *wrk = wrk_first.next;
1216
1217 if (wrk->req)
1218 req_free (wrk->req);
1219
1220 worker_clear (wrk);
1221 worker_free (wrk);
1222 }
1223
1224 started = 0;
1225 idle = 0;
1226 nreqs = 0;
1227 nready = 0;
1228 npending = 0;
1229
1230 close (respipe [0]);
1231 close (respipe [1]);
1232 create_pipe ();
1233
1234 atfork_parent ();
1235} 771}
1236 772
1237#define dREQ \ 773#define dREQ \
774 SV *cb_cv; \
1238 aio_req req; \ 775 aio_req req; \
1239 int req_pri = next_pri; \ 776 int req_pri = next_pri; \
1240 next_pri = DEFAULT_PRI + PRI_BIAS; \ 777 next_pri = EIO_PRI_DEFAULT; \
1241 \ 778 \
1242 if (SvOK (callback) && !SvROK (callback)) \ 779 cb_cv = get_cb (callback); \
1243 croak ("callback must be undef or of reference type"); \
1244 \ 780 \
1245 Newz (0, req, 1, aio_cb); \ 781 Newz (0, req, 1, eio_req); \
1246 if (!req) \ 782 if (!req) \
1247 croak ("out of memory during aio_req allocation"); \ 783 croak ("out of memory during eio_req allocation"); \
1248 \ 784 \
1249 req->callback = newSVsv (callback); \ 785 req->callback = SvREFCNT_inc (cb_cv); \
1250 req->pri = req_pri 786 req->pri = req_pri
1251 787
1252#define REQ_SEND \ 788#define REQ_SEND \
789 PUTBACK; \
1253 req_send (req); \ 790 req_submit (req); \
791 SPAGAIN; \
1254 \ 792 \
1255 if (GIMME_V != G_VOID) \ 793 if (GIMME_V != G_VOID) \
1256 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 794 XPUSHs (req_sv (req, aio_req_stash));
1257 795
1258MODULE = IO::AIO PACKAGE = IO::AIO 796MODULE = IO::AIO PACKAGE = IO::AIO
1259 797
1260PROTOTYPES: ENABLE 798PROTOTYPES: ENABLE
1261 799
1262BOOT: 800BOOT:
1263{ 801{
802 static const struct {
803 const char *name;
804 IV iv;
805 } *civ, const_iv[] = {
806# define const_niv(name, value) { # name, (IV) value },
807# define const_iv(name) { # name, (IV) name },
808# define const_eio(name) { # name, (IV) EIO_ ## name },
809 const_iv (EXDEV)
810 const_iv (ENOSYS)
811 const_iv (O_RDONLY)
812 const_iv (O_WRONLY)
813 const_iv (O_RDWR)
814 const_iv (O_CREAT)
815 const_iv (O_TRUNC)
816 const_iv (O_EXCL)
817 const_iv (O_APPEND)
818
819 const_iv (O_ASYNC)
820 const_iv (O_DIRECT)
821 const_iv (O_NOATIME)
822
823 const_iv (O_CLOEXEC)
824 const_iv (O_NOCTTY)
825 const_iv (O_NOFOLLOW)
826 const_iv (O_NONBLOCK)
827 const_iv (O_EXEC)
828 const_iv (O_SEARCH)
829 const_iv (O_DIRECTORY)
830 const_iv (O_DSYNC)
831 const_iv (O_RSYNC)
832 const_iv (O_SYNC)
833 const_iv (O_TTY_INIT)
834
835 const_iv (S_IFIFO)
836 const_iv (S_IFCHR)
837 const_iv (S_IFBLK)
838 const_iv (S_IFLNK)
839 const_iv (S_IFREG)
840 const_iv (S_IFDIR)
841 const_iv (S_IFWHT)
842 const_iv (S_IFSOCK)
843 const_iv (S_IFMT)
844
845 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
846 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
847 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
848 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
849 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
850 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
851
852 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
853 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
854 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
855 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
856 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
857
858 const_iv (ST_RDONLY)
859 const_iv (ST_NOSUID)
860 const_iv (ST_NODEV)
861 const_iv (ST_NOEXEC)
862 const_iv (ST_SYNCHRONOUS)
863 const_iv (ST_MANDLOCK)
864 const_iv (ST_WRITE)
865 const_iv (ST_APPEND)
866 const_iv (ST_IMMUTABLE)
867 const_iv (ST_NOATIME)
868 const_iv (ST_NODIRATIME)
869 const_iv (ST_RELATIME)
870
871 const_iv (PROT_NONE)
872 const_iv (PROT_EXEC)
873 const_iv (PROT_READ)
874 const_iv (PROT_WRITE)
875
876 /*const_iv (MAP_FIXED)*/
877 const_iv (MAP_PRIVATE)
878 const_iv (MAP_SHARED)
879 const_iv (MAP_ANONYMOUS)
880
881 /* linuxish */
882 const_iv (MAP_HUGETLB)
883 const_iv (MAP_LOCKED)
884 const_iv (MAP_NORESERVE)
885 const_iv (MAP_POPULATE)
886 const_iv (MAP_NONBLOCK)
887
888 const_eio (MCL_FUTURE)
889 const_eio (MCL_CURRENT)
890
891 const_eio (MS_ASYNC)
892 const_eio (MS_INVALIDATE)
893 const_eio (MS_SYNC)
894
895 const_eio (MT_MODIFY)
896
897 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
898 const_eio (SYNC_FILE_RANGE_WRITE)
899 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
900
901 const_eio (FALLOC_FL_KEEP_SIZE)
902
903 const_eio (READDIR_DENTS)
904 const_eio (READDIR_DIRS_FIRST)
905 const_eio (READDIR_STAT_ORDER)
906 const_eio (READDIR_FOUND_UNKNOWN)
907
908 const_eio (DT_UNKNOWN)
909 const_eio (DT_FIFO)
910 const_eio (DT_CHR)
911 const_eio (DT_DIR)
912 const_eio (DT_BLK)
913 const_eio (DT_REG)
914 const_eio (DT_LNK)
915 const_eio (DT_SOCK)
916 const_eio (DT_WHT)
917 };
918
1264 HV *stash = gv_stashpv ("IO::AIO", 1); 919 aio_stash = gv_stashpv ("IO::AIO" , 1);
920 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
921 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1265 922
1266 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 923 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 924 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1268 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1271 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1272 925
1273 create_pipe (); 926 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1275}
1276 927
928 reinit ();
929}
930
1277void 931void
932reinit ()
933 PROTOTYPE:
934
935void
1278max_poll_reqs (int nreqs) 936max_poll_reqs (unsigned int nreqs)
1279 PROTOTYPE: $ 937 PROTOTYPE: $
1280 CODE: 938 CODE:
1281 max_poll_reqs = nreqs; 939 eio_set_max_poll_reqs (nreqs);
1282 940
1283void 941void
1284max_poll_time (double nseconds) 942max_poll_time (double nseconds)
1285 PROTOTYPE: $ 943 PROTOTYPE: $
1286 CODE: 944 CODE:
1287 max_poll_time = nseconds * AIO_TICKS; 945 eio_set_max_poll_time (nseconds);
1288 946
1289void 947void
1290min_parallel (int nthreads) 948min_parallel (unsigned int nthreads)
1291 PROTOTYPE: $
1292
1293void
1294max_parallel (int nthreads)
1295 PROTOTYPE: $
1296
1297void
1298max_idle (int nthreads)
1299 PROTOTYPE: $ 949 PROTOTYPE: $
1300 CODE: 950 CODE:
1301 set_max_idle (nthreads); 951 eio_set_min_parallel (nthreads);
1302 952
1303int 953void
1304max_outstanding (int maxreqs) 954max_parallel (unsigned int nthreads)
1305 PROTOTYPE: $ 955 PROTOTYPE: $
1306 CODE: 956 CODE:
1307 RETVAL = max_outstanding; 957 eio_set_max_parallel (nthreads);
958
959void
960max_idle (unsigned int nthreads)
961 PROTOTYPE: $
962 CODE:
963 eio_set_max_idle (nthreads);
964
965void
966idle_timeout (unsigned int seconds)
967 PROTOTYPE: $
968 CODE:
969 eio_set_idle_timeout (seconds);
970
971void
972max_outstanding (unsigned int maxreqs)
973 PROTOTYPE: $
974 CODE:
1308 max_outstanding = maxreqs; 975 max_outstanding = maxreqs;
1309 OUTPUT:
1310 RETVAL
1311 976
1312void 977void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 978aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1314 SV * pathname
1315 int flags
1316 int mode
1317 SV * callback
1318 PROTOTYPE: $$$;$
1319 PPCODE: 979 PPCODE:
1320{ 980{
1321 dREQ; 981 dREQ;
1322 982
1323 req->type = REQ_OPEN; 983 req->type = EIO_OPEN;
1324 req->sv1 = newSVsv (pathname); 984 req->sv1 = newSVsv (pathname);
1325 req->ptr1 = SvPVbyte_nolen (req->sv1); 985 req->ptr1 = SvPVbyte_nolen (req->sv1);
1326 req->int1 = flags; 986 req->int1 = flags;
1327 req->mode = mode; 987 req->int2 = mode;
1328 988
1329 REQ_SEND; 989 REQ_SEND;
1330} 990}
1331 991
1332void 992void
1333aio_close (fh,callback=&PL_sv_undef) 993aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1334 SV * fh
1335 SV * callback
1336 PROTOTYPE: $;$
1337 ALIAS: 994 ALIAS:
1338 aio_close = REQ_CLOSE
1339 aio_fsync = REQ_FSYNC 995 aio_fsync = EIO_FSYNC
1340 aio_fdatasync = REQ_FDATASYNC 996 aio_fdatasync = EIO_FDATASYNC
997 aio_syncfs = EIO_SYNCFS
1341 PPCODE: 998 PPCODE:
1342{ 999{
1000 int fd = s_fileno_croak (fh, 0);
1343 dREQ; 1001 dREQ;
1344 1002
1345 req->type = ix; 1003 req->type = ix;
1346 req->fh = newSVsv (fh); 1004 req->sv1 = newSVsv (fh);
1347 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1005 req->int1 = fd;
1348 1006
1349 REQ_SEND (req); 1007 REQ_SEND (req);
1350} 1008}
1351 1009
1352void 1010void
1011aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1012 PPCODE:
1013{
1014 int fd = s_fileno_croak (fh, 0);
1015 dREQ;
1016
1017 req->type = EIO_SYNC_FILE_RANGE;
1018 req->sv1 = newSVsv (fh);
1019 req->int1 = fd;
1020 req->offs = offset;
1021 req->size = nbytes;
1022 req->int2 = flags;
1023
1024 REQ_SEND (req);
1025}
1026
1027void
1028aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1029 PPCODE:
1030{
1031 int fd = s_fileno_croak (fh, 0);
1032 dREQ;
1033
1034 req->type = EIO_FALLOCATE;
1035 req->sv1 = newSVsv (fh);
1036 req->int1 = fd;
1037 req->int2 = mode;
1038 req->offs = offset;
1039 req->size = len;
1040
1041 REQ_SEND (req);
1042}
1043
1044void
1045aio_close (SV *fh, SV *callback=&PL_sv_undef)
1046 PPCODE:
1047{
1048 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1049 int fd = s_fileno_croak (fh, 0);
1050 dREQ;
1051
1052 if (expect_false (close_fd < 0))
1053 {
1054 int pipefd [2];
1055
1056 if (
1057#ifdef _WIN32
1058 _pipe (pipefd, 1, _O_BINARY) < 0
1059#else
1060 pipe (pipefd) < 0
1061 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1062#endif
1063 || close (pipefd [1]) < 0
1064 )
1065 abort (); /*D*/
1066
1067 close_fd = pipefd [0];
1068 }
1069
1070 req->type = EIO_DUP2;
1071 req->int1 = close_fd;
1072 req->sv2 = newSVsv (fh);
1073 req->int2 = fd;
1074
1075 REQ_SEND (req);
1076}
1077
1078void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1079aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1354 SV * fh
1355 UV offset
1356 UV length
1357 SV * data
1358 UV dataoffset
1359 SV * callback
1360 ALIAS: 1080 ALIAS:
1361 aio_read = REQ_READ 1081 aio_read = EIO_READ
1362 aio_write = REQ_WRITE 1082 aio_write = EIO_WRITE
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1083 PPCODE:
1365{ 1084{
1366 STRLEN svlen; 1085 STRLEN svlen;
1086 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1367 char *svptr = SvPVbyte (data, svlen); 1087 char *svptr = SvPVbyte (data, svlen);
1368 1088 UV len = SvUV (length);
1369 SvUPGRADE (data, SVt_PV);
1370 SvPOK_on (data);
1371 1089
1372 if (dataoffset < 0) 1090 if (dataoffset < 0)
1373 dataoffset += svlen; 1091 dataoffset += svlen;
1374 1092
1375 if (dataoffset < 0 || dataoffset > svlen) 1093 if (dataoffset < 0 || dataoffset > svlen)
1376 croak ("data offset outside of string"); 1094 croak ("dataoffset outside of data scalar");
1377 1095
1378 if (ix == REQ_WRITE) 1096 if (ix == EIO_WRITE)
1379 { 1097 {
1380 /* write: check length and adjust. */ 1098 /* write: check length and adjust. */
1381 if (length < 0 || length + dataoffset > svlen) 1099 if (!SvOK (length) || len + dataoffset > svlen)
1382 length = svlen - dataoffset; 1100 len = svlen - dataoffset;
1383 } 1101 }
1384 else 1102 else
1385 { 1103 {
1386 /* read: grow scalar as necessary */ 1104 /* read: check type and grow scalar as necessary */
1105 SvUPGRADE (data, SVt_PV);
1387 svptr = SvGROW (data, length + dataoffset); 1106 svptr = SvGROW (data, len + dataoffset + 1);
1388 } 1107 }
1389
1390 if (length < 0)
1391 croak ("length must not be negative");
1392 1108
1393 { 1109 {
1394 dREQ; 1110 dREQ;
1395 1111
1396 req->type = ix; 1112 req->type = ix;
1397 req->fh = newSVsv (fh); 1113 req->sv1 = newSVsv (fh);
1398 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1114 req->int1 = fd;
1399 : IoOFP (sv_2io (fh))); 1115 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req->offs = offset;
1401 req->size = length; 1116 req->size = len;
1402 req->sv1 = SvREFCNT_inc (data); 1117 req->sv2 = SvREFCNT_inc (data);
1403 req->ptr1 = (char *)svptr + dataoffset; 1118 req->ptr2 = (char *)svptr + dataoffset;
1404 req->stroffset = dataoffset; 1119 req->stroffset = dataoffset;
1405 1120
1406 if (!SvREADONLY (data)) 1121 if (!SvREADONLY (data))
1407 { 1122 {
1408 SvREADONLY_on (data); 1123 SvREADONLY_on (data);
1409 req->flags |= FLAG_SV1_RO_OFF; 1124 req->flags |= FLAG_SV2_RO_OFF;
1410 } 1125 }
1411 1126
1412 REQ_SEND; 1127 REQ_SEND;
1413 } 1128 }
1414} 1129}
1415 1130
1416void 1131void
1417aio_readlink (path,callback=&PL_sv_undef) 1132aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1418 SV * path 1133 ALIAS:
1419 SV * callback 1134 aio_readlink = EIO_READLINK
1420 PROTOTYPE: $$;$ 1135 aio_realpath = EIO_REALPATH
1421 PPCODE: 1136 PPCODE:
1422{ 1137{
1423 SV *data;
1424 dREQ; 1138 dREQ;
1425 1139
1426 data = newSV (NAME_MAX);
1427 SvPOK_on (data);
1428
1429 req->type = REQ_READLINK; 1140 req->type = ix;
1430 req->fh = newSVsv (path); 1141 req->sv1 = newSVsv (path);
1431 req->ptr2 = SvPVbyte_nolen (req->fh); 1142 req->ptr1 = SvPVbyte_nolen (req->sv1);
1432 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data);
1434 1143
1435 REQ_SEND; 1144 REQ_SEND;
1436} 1145}
1437 1146
1438void 1147void
1439aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1148aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1440 SV * out_fh
1441 SV * in_fh
1442 UV in_offset
1443 UV length
1444 SV * callback
1445 PROTOTYPE: $$$$;$
1446 PPCODE: 1149 PPCODE:
1447{ 1150{
1151 int ifd = s_fileno_croak (in_fh , 0);
1152 int ofd = s_fileno_croak (out_fh, 1);
1448 dREQ; 1153 dREQ;
1449 1154
1450 req->type = REQ_SENDFILE; 1155 req->type = EIO_SENDFILE;
1451 req->fh = newSVsv (out_fh); 1156 req->sv1 = newSVsv (out_fh);
1452 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1157 req->int1 = ofd;
1453 req->sv2 = newSVsv (in_fh); 1158 req->sv2 = newSVsv (in_fh);
1454 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1159 req->int2 = ifd;
1455 req->offs = in_offset; 1160 req->offs = in_offset;
1456 req->size = length; 1161 req->size = length;
1457 1162
1458 REQ_SEND; 1163 REQ_SEND;
1459} 1164}
1460 1165
1461void 1166void
1462aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1167aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1463 SV * fh
1464 UV offset
1465 IV length
1466 SV * callback
1467 PROTOTYPE: $$$;$
1468 PPCODE: 1168 PPCODE:
1469{ 1169{
1170 int fd = s_fileno_croak (fh, 0);
1470 dREQ; 1171 dREQ;
1471 1172
1472 req->type = REQ_READAHEAD; 1173 req->type = EIO_READAHEAD;
1473 req->fh = newSVsv (fh); 1174 req->sv1 = newSVsv (fh);
1474 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1175 req->int1 = fd;
1475 req->offs = offset; 1176 req->offs = offset;
1476 req->size = length; 1177 req->size = length;
1477 1178
1478 REQ_SEND; 1179 REQ_SEND;
1479} 1180}
1480 1181
1481void 1182void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 1183aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1483 SV * fh_or_path
1484 SV * callback
1485 ALIAS: 1184 ALIAS:
1486 aio_stat = REQ_STAT 1185 aio_stat = EIO_STAT
1487 aio_lstat = REQ_LSTAT 1186 aio_lstat = EIO_LSTAT
1187 aio_statvfs = EIO_STATVFS
1488 PPCODE: 1188 PPCODE:
1489{ 1189{
1490 dREQ; 1190 dREQ;
1491 1191
1492 req->ptr2 = malloc (sizeof (Stat_t)); 1192 req->sv1 = newSVsv (fh_or_path);
1493 if (!req->ptr2)
1494 {
1495 req_free (req);
1496 croak ("out of memory during aio_stat statdata allocation");
1497 }
1498 1193
1499 req->flags |= FLAG_PTR2_FREE; 1194 if (SvPOK (req->sv1))
1500
1501 if (SvPOK (fh_or_path))
1502 { 1195 {
1503 req->type = ix; 1196 req->type = ix;
1504 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (req->sv1); 1197 req->ptr1 = SvPVbyte_nolen (req->sv1);
1506 } 1198 }
1507 else 1199 else
1508 { 1200 {
1509 req->type = REQ_FSTAT; 1201 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1510 req->fh = newSVsv (fh_or_path);
1511 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1202 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512 } 1203 }
1513 1204
1514 REQ_SEND; 1205 REQ_SEND;
1515} 1206}
1516 1207
1208UV
1209major (UV dev)
1210 ALIAS:
1211 minor = 1
1212 CODE:
1213 RETVAL = ix ? major (dev) : minor (dev);
1214 OUTPUT:
1215 RETVAL
1216
1217UV
1218makedev (UV maj, UV min)
1219 CODE:
1220 RETVAL = makedev (maj, min);
1221 OUTPUT:
1222 RETVAL
1223
1517void 1224void
1225aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1226 PPCODE:
1227{
1228 dREQ;
1229
1230 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1231 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1232 req->sv1 = newSVsv (fh_or_path);
1233
1234 if (SvPOK (req->sv1))
1235 {
1236 req->type = EIO_UTIME;
1237 req->ptr1 = SvPVbyte_nolen (req->sv1);
1238 }
1239 else
1240 {
1241 req->type = EIO_FUTIME;
1242 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1243 }
1244
1245 REQ_SEND;
1246}
1247
1248void
1249aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1250 PPCODE:
1251{
1252 dREQ;
1253
1254 req->sv1 = newSVsv (fh_or_path);
1255 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1256
1257 if (SvPOK (req->sv1))
1258 {
1259 req->type = EIO_TRUNCATE;
1260 req->ptr1 = SvPVbyte_nolen (req->sv1);
1261 }
1262 else
1263 {
1264 req->type = EIO_FTRUNCATE;
1265 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1266 }
1267
1268 REQ_SEND;
1269}
1270
1271void
1272aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1273 ALIAS:
1274 aio_chmod = EIO_CHMOD
1275 aio_mkdir = EIO_MKDIR
1276 PPCODE:
1277{
1278 dREQ;
1279
1280 req->int2 = mode;
1281 req->sv1 = newSVsv (fh_or_path);
1282
1283 if (SvPOK (req->sv1))
1284 {
1285 req->type = ix;
1286 req->ptr1 = SvPVbyte_nolen (req->sv1);
1287 }
1288 else
1289 {
1290 req->type = EIO_FCHMOD;
1291 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292 }
1293
1294 REQ_SEND;
1295}
1296
1297void
1298aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1299 PPCODE:
1300{
1301 dREQ;
1302
1303 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1304 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1305 req->sv1 = newSVsv (fh_or_path);
1306
1307 if (SvPOK (req->sv1))
1308 {
1309 req->type = EIO_CHOWN;
1310 req->ptr1 = SvPVbyte_nolen (req->sv1);
1311 }
1312 else
1313 {
1314 req->type = EIO_FCHOWN;
1315 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1316 }
1317
1318 REQ_SEND;
1319}
1320
1321void
1322aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1323 PPCODE:
1324{
1325 dREQ;
1326
1327 req->type = EIO_READDIR;
1328 req->sv1 = newSVsv (pathname);
1329 req->ptr1 = SvPVbyte_nolen (req->sv1);
1330 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1331
1332 if (flags & EIO_READDIR_DENTS)
1333 req->int1 |= EIO_READDIR_CUSTOM2;
1334
1335 REQ_SEND;
1336}
1337
1338void
1518aio_unlink (pathname,callback=&PL_sv_undef) 1339aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1519 SV * pathname
1520 SV * callback
1521 ALIAS: 1340 ALIAS:
1522 aio_unlink = REQ_UNLINK 1341 aio_unlink = EIO_UNLINK
1523 aio_rmdir = REQ_RMDIR 1342 aio_rmdir = EIO_RMDIR
1524 aio_readdir = REQ_READDIR 1343 aio_readdir = EIO_READDIR
1525 PPCODE: 1344 PPCODE:
1526{ 1345{
1527 dREQ; 1346 dREQ;
1528 1347
1529 req->type = ix; 1348 req->type = ix;
1532 1351
1533 REQ_SEND; 1352 REQ_SEND;
1534} 1353}
1535 1354
1536void 1355void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1356aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1538 SV * oldpath
1539 SV * newpath
1540 SV * callback
1541 ALIAS: 1357 ALIAS:
1542 aio_link = REQ_LINK 1358 aio_link = EIO_LINK
1543 aio_symlink = REQ_SYMLINK 1359 aio_symlink = EIO_SYMLINK
1544 aio_rename = REQ_RENAME 1360 aio_rename = EIO_RENAME
1545 PPCODE: 1361 PPCODE:
1546{ 1362{
1547 dREQ; 1363 dREQ;
1548 1364
1549 req->type = ix; 1365 req->type = ix;
1550 req->fh = newSVsv (oldpath); 1366 req->sv1 = newSVsv (oldpath);
1551 req->ptr2 = SvPVbyte_nolen (req->fh);
1552 req->sv1 = newSVsv (newpath);
1553 req->ptr1 = SvPVbyte_nolen (req->sv1); 1367 req->ptr1 = SvPVbyte_nolen (req->sv1);
1368 req->sv2 = newSVsv (newpath);
1369 req->ptr2 = SvPVbyte_nolen (req->sv2);
1554 1370
1555 REQ_SEND; 1371 REQ_SEND;
1556} 1372}
1557 1373
1558void 1374void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1375aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1560 SV * pathname
1561 SV * callback
1562 UV mode
1563 UV dev
1564 PPCODE: 1376 PPCODE:
1565{ 1377{
1566 dREQ; 1378 dREQ;
1567 1379
1568 req->type = REQ_MKNOD; 1380 req->type = EIO_MKNOD;
1569 req->sv1 = newSVsv (pathname); 1381 req->sv1 = newSVsv (pathname);
1570 req->ptr1 = SvPVbyte_nolen (req->sv1); 1382 req->ptr1 = SvPVbyte_nolen (req->sv1);
1571 req->mode = (mode_t)mode; 1383 req->int2 = (mode_t)mode;
1572 req->offs = dev; 1384 req->offs = dev;
1573 1385
1574 REQ_SEND; 1386 REQ_SEND;
1575} 1387}
1576 1388
1577void 1389void
1390aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1391 ALIAS:
1392 aio_mtouch = EIO_MTOUCH
1393 aio_msync = EIO_MSYNC
1394 PPCODE:
1395{
1396 STRLEN svlen;
1397 char *svptr = SvPVbyte (data, svlen);
1398 UV len = SvUV (length);
1399
1400 if (offset < 0)
1401 offset += svlen;
1402
1403 if (offset < 0 || offset > svlen)
1404 croak ("offset outside of scalar");
1405
1406 if (!SvOK (length) || len + offset > svlen)
1407 len = svlen - offset;
1408
1409 {
1410 dREQ;
1411
1412 req->type = ix;
1413 req->sv2 = SvREFCNT_inc (data);
1414 req->ptr2 = (char *)svptr + offset;
1415 req->size = len;
1416 req->int1 = flags;
1417
1418 REQ_SEND;
1419 }
1420}
1421
1422void
1423aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1424 PPCODE:
1425{
1426 STRLEN svlen;
1427 char *svptr = SvPVbyte (data, svlen);
1428 UV len = SvUV (length);
1429
1430 if (offset < 0)
1431 offset += svlen;
1432
1433 if (offset < 0 || offset > svlen)
1434 croak ("offset outside of scalar");
1435
1436 if (!SvOK (length) || len + offset > svlen)
1437 len = svlen - offset;
1438
1439 {
1440 dREQ;
1441
1442 req->type = EIO_MLOCK;
1443 req->sv2 = SvREFCNT_inc (data);
1444 req->ptr2 = (char *)svptr + offset;
1445 req->size = len;
1446
1447 REQ_SEND;
1448 }
1449}
1450
1451void
1452aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1453 PPCODE:
1454{
1455 dREQ;
1456
1457 req->type = EIO_MLOCKALL;
1458 req->int1 = flags;
1459
1460 REQ_SEND;
1461}
1462
1463void
1578aio_busy (delay,callback=&PL_sv_undef) 1464aio_busy (double delay, SV *callback=&PL_sv_undef)
1579 double delay
1580 SV * callback
1581 PPCODE: 1465 PPCODE:
1582{ 1466{
1583 dREQ; 1467 dREQ;
1584 1468
1585 req->type = REQ_BUSY; 1469 req->type = EIO_BUSY;
1586 req->int1 = delay < 0. ? 0 : delay; 1470 req->nv1 = delay < 0. ? 0. : delay;
1587 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1588 1471
1589 REQ_SEND; 1472 REQ_SEND;
1590} 1473}
1591 1474
1592void 1475void
1593aio_group (callback=&PL_sv_undef) 1476aio_group (SV *callback=&PL_sv_undef)
1594 SV * callback
1595 PROTOTYPE: ;$
1596 PPCODE: 1477 PPCODE:
1597{ 1478{
1598 dREQ; 1479 dREQ;
1599 1480
1600 req->type = REQ_GROUP; 1481 req->type = EIO_GROUP;
1601 1482
1602 req_send (req); 1483 req_submit (req);
1603 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1484 XPUSHs (req_sv (req, aio_grp_stash));
1604} 1485}
1605 1486
1606void 1487void
1607aio_nop (callback=&PL_sv_undef) 1488aio_nop (SV *callback=&PL_sv_undef)
1608 SV * callback 1489 ALIAS:
1490 aio_nop = EIO_NOP
1491 aio_sync = EIO_SYNC
1609 PPCODE: 1492 PPCODE:
1610{ 1493{
1611 dREQ; 1494 dREQ;
1612 1495
1613 req->type = REQ_NOP; 1496 req->type = ix;
1614 1497
1615 REQ_SEND; 1498 REQ_SEND;
1616} 1499}
1617 1500
1618int 1501int
1619aioreq_pri (int pri = 0) 1502aioreq_pri (int pri = 0)
1620 PROTOTYPE: ;$
1621 CODE: 1503 CODE:
1622 RETVAL = next_pri - PRI_BIAS; 1504 RETVAL = next_pri;
1623 if (items > 0) 1505 if (items > 0)
1624 { 1506 {
1625 if (pri < PRI_MIN) pri = PRI_MIN; 1507 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1626 if (pri > PRI_MAX) pri = PRI_MAX; 1508 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1627 next_pri = pri + PRI_BIAS; 1509 next_pri = pri;
1628 } 1510 }
1629 OUTPUT: 1511 OUTPUT:
1630 RETVAL 1512 RETVAL
1631 1513
1632void 1514void
1633aioreq_nice (int nice = 0) 1515aioreq_nice (int nice = 0)
1634 CODE: 1516 CODE:
1635 nice = next_pri - nice; 1517 nice = next_pri - nice;
1636 if (nice < PRI_MIN) nice = PRI_MIN; 1518 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1637 if (nice > PRI_MAX) nice = PRI_MAX; 1519 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1638 next_pri = nice + PRI_BIAS; 1520 next_pri = nice;
1639 1521
1640void 1522void
1641flush () 1523flush ()
1642 PROTOTYPE:
1643 CODE: 1524 CODE:
1644 while (nreqs) 1525 while (eio_nreqs ())
1645 { 1526 {
1646 poll_wait (); 1527 poll_wait ();
1647 poll_cb (0); 1528 poll_cb ();
1648 } 1529 }
1649 1530
1650void 1531int
1651poll() 1532poll ()
1652 PROTOTYPE:
1653 CODE: 1533 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait (); 1534 poll_wait ();
1657 poll_cb (0); 1535 RETVAL = poll_cb ();
1658 }
1659
1660int
1661poll_fileno()
1662 PROTOTYPE:
1663 CODE:
1664 RETVAL = respipe [0];
1665 OUTPUT: 1536 OUTPUT:
1666 RETVAL 1537 RETVAL
1667 1538
1668int 1539int
1540poll_fileno ()
1541 CODE:
1542 RETVAL = s_epipe_fd (&respipe);
1543 OUTPUT:
1544 RETVAL
1545
1546int
1669poll_cb(...) 1547poll_cb (...)
1670 PROTOTYPE: 1548 PROTOTYPE:
1671 CODE: 1549 CODE:
1672 RETVAL = poll_cb (); 1550 RETVAL = poll_cb ();
1673 OUTPUT: 1551 OUTPUT:
1674 RETVAL 1552 RETVAL
1675 1553
1676void 1554void
1677poll_wait() 1555poll_wait ()
1678 PROTOTYPE:
1679 CODE: 1556 CODE:
1680 if (nreqs)
1681 poll_wait (); 1557 poll_wait ();
1682 1558
1683int 1559int
1684nreqs() 1560nreqs ()
1685 PROTOTYPE:
1686 CODE: 1561 CODE:
1687 RETVAL = nreqs; 1562 RETVAL = eio_nreqs ();
1688 OUTPUT: 1563 OUTPUT:
1689 RETVAL 1564 RETVAL
1690 1565
1691int 1566int
1692nready() 1567nready ()
1693 PROTOTYPE:
1694 CODE: 1568 CODE:
1695 RETVAL = get_nready (); 1569 RETVAL = eio_nready ();
1696 OUTPUT: 1570 OUTPUT:
1697 RETVAL 1571 RETVAL
1698 1572
1699int 1573int
1700npending() 1574npending ()
1701 PROTOTYPE:
1702 CODE: 1575 CODE:
1703 RETVAL = get_npending (); 1576 RETVAL = eio_npending ();
1704 OUTPUT: 1577 OUTPUT:
1705 RETVAL 1578 RETVAL
1706 1579
1707int 1580int
1708nthreads() 1581nthreads ()
1709 PROTOTYPE:
1710 CODE: 1582 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1583 RETVAL = eio_nthreads ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1584 OUTPUT:
1715 RETVAL 1585 RETVAL
1716 1586
1587int
1588fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1589 CODE:
1590 RETVAL = posix_fadvise (fh, offset, length, advice);
1591 OUTPUT:
1592 RETVAL
1593
1594IV
1595sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1596 CODE:
1597 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1598 OUTPUT:
1599 RETVAL
1600
1601void
1602mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1603 PPCODE:
1604 sv_unmagic (scalar, MMAP_MAGIC);
1605{
1606 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1607 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1608 if (addr == (void *)-1)
1609 XSRETURN_NO;
1610
1611 sv_force_normal (scalar);
1612
1613 /* we store the length in mg_obj, as namlen is I32 :/ */
1614 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1615 ->mg_obj = (SV *)length;
1616
1617 SvUPGRADE (scalar, SVt_PV); /* nop... */
1618
1619 if (!(prot & PROT_WRITE))
1620 SvREADONLY_on (scalar);
1621
1622 if (SvLEN (scalar))
1623 Safefree (SvPVX (scalar));
1624
1625 SvPVX (scalar) = (char *)addr;
1626 SvCUR_set (scalar, length);
1627 SvLEN_set (scalar, 0);
1628 SvPOK_only (scalar);
1629
1630 XSRETURN_YES;
1631}
1632
1633void
1634munmap (SV *scalar)
1635 CODE:
1636 sv_unmagic (scalar, MMAP_MAGIC);
1637
1638int
1639madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1640 ALIAS:
1641 mprotect = 1
1642 CODE:
1643{
1644 STRLEN svlen;
1645 void *addr = SvPVbyte (scalar, svlen);
1646 size_t len = SvUV (length);
1647
1648 if (offset < 0)
1649 offset += svlen;
1650
1651 if (offset < 0 || offset > svlen)
1652 croak ("offset outside of scalar");
1653
1654 if (!SvOK (length) || len + offset > svlen)
1655 len = svlen - offset;
1656
1657 addr = (void *)(((intptr_t)addr) + offset);
1658 eio_page_align (&addr, &len);
1659
1660 switch (ix)
1661 {
1662 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1663 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1664 }
1665}
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1671 CODE:
1672{
1673 STRLEN svlen;
1674 void *addr = SvPVbyte (scalar, svlen);
1675 size_t len = SvUV (length);
1676
1677 if (offset < 0)
1678 offset += svlen;
1679
1680 if (offset < 0 || offset > svlen)
1681 croak ("offset outside of scalar");
1682
1683 if (!SvOK (length) || len + offset > svlen)
1684 len = svlen - offset;
1685
1686 addr = (void *)(((intptr_t)addr) + offset);
1687 eio_page_align (&addr, &len);
1688#if _POSIX_MEMLOCK_RANGE
1689 RETVAL = munlock (addr, len);
1690#else
1691 RETVAL = ((errno = ENOSYS), -1);
1692#endif
1693}
1694 OUTPUT:
1695 RETVAL
1696
1697int
1698munlockall ()
1699 CODE:
1700#if _POSIX_MEMLOCK
1701 munlockall ();
1702#else
1703 RETVAL = -1;
1704 errno = ENOSYS;
1705#endif
1706 OUTPUT:
1707 RETVAL
1708
1709void _on_next_submit (SV *cb)
1710 CODE:
1711 SvREFCNT_dec (on_next_submit);
1712 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1713
1717PROTOTYPES: DISABLE 1714PROTOTYPES: DISABLE
1718 1715
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1716MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 1717
1721void 1718void
1722cancel (aio_req_ornot req) 1719cancel (aio_req_ornot req)
1723 CODE: 1720 CODE:
1724 req_cancel (req); 1721 eio_cancel (req);
1725 1722
1726void 1723void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1724cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1728 CODE: 1725 PPCODE:
1726{
1727 if (GIMME_V != G_VOID)
1728 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1729
1730 if (items > 1)
1731 {
1732 SV *cb_cv =get_cb (callback);
1733
1729 SvREFCNT_dec (req->callback); 1734 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 1735 req->callback = SvREFCNT_inc (cb_cv);
1736 }
1737}
1731 1738
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1739MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 1740
1734void 1741void
1735add (aio_req grp, ...) 1742add (aio_req grp, ...)
1736 PPCODE: 1743 PPCODE:
1737{ 1744{
1738 int i; 1745 int i;
1739 aio_req req;
1740 1746
1741 if (grp->int1 == 2) 1747 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1748 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 1749
1744 for (i = 1; i < items; ++i ) 1750 for (i = 1; i < items; ++i )
1745 { 1751 {
1752 aio_req req;
1753
1746 if (GIMME_V != G_VOID) 1754 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1755 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 1756
1749 req = SvAIO_REQ (ST (i)); 1757 req = SvAIO_REQ (ST (i));
1750 1758
1751 if (req) 1759 if (req)
1752 { 1760 eio_grp_add (grp, req);
1753 ++grp->size;
1754 req->grp = grp;
1755
1756 req->grp_prev = 0;
1757 req->grp_next = grp->grp_first;
1758
1759 if (grp->grp_first)
1760 grp->grp_first->grp_prev = req;
1761
1762 grp->grp_first = req;
1763 }
1764 } 1761 }
1765} 1762}
1766 1763
1767void 1764void
1768cancel_subs (aio_req_ornot req) 1765cancel_subs (aio_req_ornot req)
1777 AV *av; 1774 AV *av;
1778 1775
1779 grp->errorno = errno; 1776 grp->errorno = errno;
1780 1777
1781 av = newAV (); 1778 av = newAV ();
1779 av_extend (av, items - 1);
1782 1780
1783 for (i = 1; i < items; ++i ) 1781 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 1782 av_push (av, newSVsv (ST (i)));
1785 1783
1786 SvREFCNT_dec (grp->sv1); 1784 SvREFCNT_dec (grp->sv1);
1793 grp->errorno = errorno; 1791 grp->errorno = errorno;
1794 1792
1795void 1793void
1796limit (aio_req grp, int limit) 1794limit (aio_req grp, int limit)
1797 CODE: 1795 CODE:
1798 grp->int2 = limit; 1796 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 1797
1801void 1798void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 1799feed (aio_req grp, SV *callback=&PL_sv_undef)
1803 CODE: 1800 CODE:
1804{ 1801{
1805 SvREFCNT_dec (grp->sv2); 1802 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 1803 grp->sv2 = newSVsv (callback);
1804 grp->feed = aio_grp_feed;
1807 1805
1808 if (grp->int2 <= 0) 1806 if (grp->int2 <= 0)
1809 grp->int2 = 2; 1807 grp->int2 = 2;
1810 1808
1811 aio_grp_feed (grp); 1809 eio_grp_limit (grp, grp->int2);
1812} 1810}
1813 1811

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