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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.87 by root, Mon Oct 30 23:42:27 2006 UTC vs.
Revision 1.195 by root, Mon Sep 26 20:19:08 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, *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
43# else 295# else
44# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 297# endif
46#endif 298#endif
47 299#ifndef MAP_HUGETLB
48/* number of seconds after which idle threads exit */ 300# 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 301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
79#endif 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
80 314
81/* buffer size for various temporary buffers */ 315#ifndef makedev
82#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
83 324
84#define dBUF \ 325#ifndef PAGESIZE
85 char *aio_buf; \ 326# define PAGESIZE sysconf (_SC_PAGESIZE)
86 LOCK (wrklock); \ 327#endif
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \
89 if (!aio_buf) \
90 return -1;
91 328
92enum { 329enum {
93 REQ_QUIT, 330 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}; 331};
105 332
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,
135 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
136 FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */
137};
138
139typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
140typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd *aio_wd;
141 336
142enum { 337static SV *on_next_submit;
143 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
144 PRI_MAX = 4, 339static int max_outstanding;
145 340
146 DEFAULT_PRI = 0, 341static s_epipe respipe;
147 PRI_BIAS = -PRI_MIN,
148 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
149};
150 342
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); 343static void req_destroy (aio_req req);
325static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
326 345
346static void want_poll (void)
347{
348 /* write a dummy byte to the pipe so fh becomes ready */
349 s_epipe_signal (&respipe);
350}
351
352static void done_poll (void)
353{
354 /* read any signals sent by the worker threads */
355 s_epipe_drain (&respipe);
356}
357
327/* must be called at most once */ 358/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 359static SV *req_sv (aio_req req, HV *stash)
329{ 360{
330 if (!req->self) 361 if (!req->self)
331 { 362 {
332 req->self = (SV *)newHV (); 363 req->self = (SV *)newHV ();
333 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
334 } 365 }
335 366
336 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 367 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
337} 368}
338 369
339static aio_req SvAIO_REQ (SV *sv) 370static aio_req SvAIO_REQ (SV *sv)
340{ 371{
341 MAGIC *mg; 372 MAGIC *mg;
342 373
343 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 374 if (!SvROK (sv)
375 || (SvSTASH (SvRV (sv)) != aio_grp_stash
376 && SvSTASH (SvRV (sv)) != aio_req_stash
377 && !sv_derived_from (sv, "IO::AIO::REQ")))
344 croak ("object of class " AIO_REQ_KLASS " expected"); 378 croak ("object of class IO::AIO::REQ expected");
345 379
346 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 380 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
347 381
348 return mg ? (aio_req)mg->mg_ptr : 0; 382 return mg ? (aio_req)mg->mg_ptr : 0;
349} 383}
350 384
385static aio_wd SvAIO_WD (SV *sv)
386{
387 if (!SvROK (sv)
388 || SvSTASH (SvRV (sv)) != aio_wd_stash
389 || SvTYPE (SvRV (sv)) != SVt_PVMG)
390 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
391
392 return (aio_wd)(long)SvIVX (SvRV (sv));
393}
394
351static void aio_grp_feed (aio_req grp) 395static void aio_grp_feed (aio_req grp)
352{ 396{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 397 if (grp->sv2 && SvOK (grp->sv2))
354 { 398 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 399 dSP;
360 400
361 ENTER; 401 ENTER;
362 SAVETMPS; 402 SAVETMPS;
363 PUSHMARK (SP); 403 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 404 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 405 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 406 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 407 SPAGAIN;
368 FREETMPS; 408 FREETMPS;
369 LEAVE; 409 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 } 410 }
380} 411}
381 412
382static void aio_grp_dec (aio_req grp) 413static void req_submit (eio_req *req)
383{ 414{
384 --grp->size; 415 eio_submit (req);
385 416
386 /* call feeder, if applicable */ 417 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 418 {
392 req_invoke (grp); 419 dSP;
393 req_free (grp); 420 SV *cb = sv_2mortal (on_next_submit);
421
422 on_next_submit = 0;
423
424 PUSHMARK (SP);
425 PUTBACK;
426 call_sv (cb, G_DISCARD | G_EVAL);
394 } 427 }
395} 428}
396 429
397static void req_invoke (aio_req req) 430static int req_invoke (eio_req *req)
398{ 431{
399 dSP;
400
401 if (req->flags & FLAG_SV1_RO_OFF) 432 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 433 SvREADONLY_off (req->sv2);
403 434
404 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 435 if (!EIO_CANCELLED (req) && req->callback)
405 { 436 {
437 dSP;
438 static SV *sv_result_cache; /* caches the result integer SV */
439 SV *sv_result;
440
406 ENTER; 441 ENTER;
407 SAVETMPS; 442 SAVETMPS;
408 PUSHMARK (SP); 443 PUSHMARK (SP);
409 EXTEND (SP, 1); 444 EXTEND (SP, 1);
410 445
446 /* do not recreate the result IV from scratch each time */
447 if (expect_true (sv_result_cache))
448 {
449 sv_result = sv_result_cache; sv_result_cache = 0;
450 SvIV_set (sv_result, req->result);
451 SvIOK_only (sv_result);
452 }
453 else
454 {
455 sv_result = newSViv (req->result);
456 SvREADONLY_on (sv_result);
457 }
458
411 switch (req->type) 459 switch (req->type)
412 { 460 {
461 case EIO_WD_OPEN:
462 PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));
463 break;
464
413 case REQ_READDIR: 465 case EIO_READDIR:
414 { 466 {
415 SV *rv = &PL_sv_undef; 467 SV *rv = &PL_sv_undef;
416 468
417 if (req->result >= 0) 469 if (req->result >= 0)
418 { 470 {
419 int i; 471 int i;
420 char *buf = req->ptr2; 472 char *names = (char *)req->ptr2;
473 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
421 AV *av = newAV (); 474 AV *av = newAV ();
422 475
423 av_extend (av, req->result - 1); 476 av_extend (av, req->result - 1);
424 477
425 for (i = 0; i < req->result; ++i) 478 for (i = 0; i < req->result; ++i)
426 { 479 {
427 SV *sv = newSVpv (buf, 0); 480 if (req->int1 & EIO_READDIR_DENTS)
481 {
482 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428 483
484 if (req->int1 & EIO_READDIR_CUSTOM2)
485 {
486 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
487 AV *avent = newAV ();
488
489 av_extend (avent, 2);
490
491 if (!sv_type [ent->type])
492 {
493 sv_type [ent->type] = newSViv (ent->type);
494 SvREADONLY_on (sv_type [ent->type]);
495 }
496
497 av_store (avent, 0, namesv);
498 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
499 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
500
501 av_store (av, i, newRV_noinc ((SV *)avent));
502 }
503 else
429 av_store (av, i, sv); 504 av_store (av, i, namesv);
505
506 ++ent;
507 }
508 else
509 {
510 SV *name = newSVpv (names, 0);
511 av_store (av, i, name);
430 buf += SvCUR (sv) + 1; 512 names += SvCUR (name) + 1;
513 }
431 } 514 }
432 515
433 rv = sv_2mortal (newRV_noinc ((SV *)av)); 516 rv = sv_2mortal (newRV_noinc ((SV *)av));
434 } 517 }
435 518
436 PUSHs (rv); 519 PUSHs (rv);
520
521 if (req->int1 & EIO_READDIR_CUSTOM1)
522 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
437 } 523 }
438 break; 524 break;
439 525
440 case REQ_OPEN: 526 case EIO_OPEN:
441 { 527 {
442 /* convert fd to fh */ 528 /* convert fd to fh */
443 SV *fh; 529 SV *fh = &PL_sv_undef;
444 530
445 PUSHs (sv_2mortal (newSViv (req->result))); 531 if (req->result >= 0)
446 PUTBACK; 532 {
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 533 GV *gv = (GV *)sv_newmortal ();
448 SPAGAIN; 534 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
535 char sym [64];
536 int symlen;
537
538 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
539 gv_init (gv, aio_stash, sym, symlen, 0);
449 540
450 fh = SvREFCNT_inc (POPs); 541 symlen = snprintf (
542 sym,
543 sizeof (sym),
544 "%s&=%d",
545 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
546 (int)req->result
547 );
451 548
549 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
550 fh = (SV *)gv;
551 }
552
452 PUSHMARK (SP); 553 PUSHs (fh);
453 XPUSHs (sv_2mortal (fh));
454 } 554 }
455 break; 555 break;
456 556
557 case EIO_STATVFS:
558 case EIO_FSTATVFS:
559 {
560 SV *rv = &PL_sv_undef;
561
562#ifndef _WIN32
563 if (req->result >= 0)
564 {
565 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566 HV *hv = newHV ();
567
568 rv = sv_2mortal (newRV_noinc ((SV *)hv));
569
570 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
571 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
572 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
573 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
574 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
575 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
576 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
577 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
578 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
579 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
580 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
581 }
582#endif
583
584 PUSHs (rv);
585 }
586
587 break;
588
457 case REQ_GROUP: 589 case EIO_GROUP:
458 req->int1 = 2; /* mark group as finished */ 590 req->int1 = 2; /* mark group as finished */
459 591
460 if (req->sv1) 592 if (req->sv1)
461 { 593 {
462 int i; 594 int i;
466 for (i = 0; i <= AvFILL (av); ++i) 598 for (i = 0; i <= AvFILL (av); ++i)
467 PUSHs (*av_fetch (av, i, 0)); 599 PUSHs (*av_fetch (av, i, 0));
468 } 600 }
469 break; 601 break;
470 602
471 case REQ_NOP: 603 case EIO_NOP:
472 case REQ_BUSY: 604 case EIO_BUSY:
473 break; 605 break;
474 606
475 case REQ_READLINK: 607 case EIO_READLINK:
608 case EIO_REALPATH:
476 if (req->result > 0) 609 if (req->result > 0)
477 { 610 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; 611 break;
483 612
484 case REQ_STAT: 613 case EIO_STAT:
485 case REQ_LSTAT: 614 case EIO_LSTAT:
486 case REQ_FSTAT: 615 case EIO_FSTAT:
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 616 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result; 617 PL_laststatval = req->result;
618 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
489 PL_statcache = *(Stat_t *)(req->ptr2); 619 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
490 PUSHs (sv_2mortal (newSViv (req->result))); 620 PUSHs (sv_result);
491 break; 621 break;
492 622
493 case REQ_READ: 623 case EIO_READ:
624 {
494 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 625 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
495 *SvEND (req->sv1) = 0; 626 *SvEND (req->sv2) = 0;
496 PUSHs (sv_2mortal (newSViv (req->result))); 627 SvPOK_only (req->sv2);
628 SvSETMAGIC (req->sv2);
629 PUSHs (sv_result);
630 }
497 break; 631 break;
498 632
633 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634 if (req->result > 0)
635 SvIV_set (sv_result, 0);
636 /* FALLTHROUGH */
637
499 default: 638 default:
500 PUSHs (sv_2mortal (newSViv (req->result))); 639 PUSHs (sv_result);
501 break; 640 break;
502 } 641 }
503 642
504 errno = req->errorno; 643 errno = req->errorno;
505 644
506 PUTBACK; 645 PUTBACK;
507 call_sv (req->callback, G_VOID | G_EVAL); 646 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508 SPAGAIN; 647 SPAGAIN;
648
649 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
650 SvREFCNT_dec (sv_result);
651 else
652 sv_result_cache = sv_result;
509 653
510 FREETMPS; 654 FREETMPS;
511 LEAVE; 655 LEAVE;
656
657 PUTBACK;
512 } 658 }
513 659
514 if (req->grp) 660 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} 661}
534 662
535static void req_free (aio_req req) 663static void req_destroy (aio_req req)
536{ 664{
537 if (req->self) 665 if (req->self)
538 { 666 {
539 sv_unmagic (req->self, PERL_MAGIC_ext); 667 sv_unmagic (req->self, PERL_MAGIC_ext);
540 SvREFCNT_dec (req->self); 668 SvREFCNT_dec (req->self);
541 } 669 }
542 670
543 SvREFCNT_dec (req->fh);
544 SvREFCNT_dec (req->sv1); 671 SvREFCNT_dec (req->sv1);
545 SvREFCNT_dec (req->sv2); 672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
546 SvREFCNT_dec (req->callback); 675 SvREFCNT_dec (req->callback);
547 676
548 if (req->flags & FLAG_PTR2_FREE)
549 free (req->ptr2);
550
551 Safefree (req); 677 Safefree (req);
552} 678}
553 679
554static void req_cancel_subs (aio_req grp) 680static void req_cancel_subs (aio_req grp)
555{ 681{
556 aio_req sub;
557
558 if (grp->type != REQ_GROUP) 682 if (grp->type != EIO_GROUP)
559 return; 683 return;
560 684
561 SvREFCNT_dec (grp->sv2); 685 SvREFCNT_dec (grp->sv2);
562 grp->sv2 = 0; 686 grp->sv2 = 0;
563 687
564 for (sub = grp->grp_first; sub; sub = sub->grp_next) 688 eio_grp_cancel (grp);
565 req_cancel (sub);
566} 689}
567 690
568static void req_cancel (aio_req req) 691static void create_respipe (void)
569{ 692{
570 req->flags |= FLAG_CANCELLED; 693 if (s_epipe_renew (&respipe))
571 694 croak ("IO::AIO: unable to initialize result pipe");
572 req_cancel_subs (req);
573} 695}
574 696
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 () 697static void poll_wait (void)
681{ 698{
682 fd_set rfd;
683
684 while (nreqs) 699 while (eio_nreqs ())
685 { 700 {
686 int size; 701 int size;
687 if (WORDACCESS_UNSAFE) LOCK (reslock); 702
703 X_LOCK (reslock);
688 size = res_queue.size; 704 size = res_queue.size;
689 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 705 X_UNLOCK (reslock);
690 706
691 if (size) 707 if (size)
692 return; 708 return;
693 709
694 maybe_start_thread (); 710 etp_maybe_start_thread ();
695 711
696 FD_ZERO(&rfd); 712 s_epipe_wait (&respipe);
697 FD_SET(respipe [0], &rfd);
698
699 select (respipe [0] + 1, &rfd, 0, 0, 0);
700 } 713 }
701} 714}
702 715
703static int poll_cb () 716static int poll_cb (void)
704{ 717{
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 (;;) 718 for (;;)
716 { 719 {
717 for (;;) 720 int res = eio_poll ();
718 {
719 maybe_start_thread ();
720 721
721 LOCK (reslock); 722 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; 723 croak (0);
724
725 if (!max_outstanding || max_outstanding > eio_nreqs ())
726 return res;
772 727
773 poll_wait (); 728 poll_wait ();
774
775 ++maxreqs;
776 } 729 }
777
778 return count;
779} 730}
780 731
781static void create_pipe () 732static void ecb_cold
733reinit (void)
782{ 734{
783 if (pipe (respipe)) 735 create_respipe ();
784 croak ("unable to initialize result pipe");
785 736
786 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 737 if (eio_init (want_poll, done_poll) < 0)
787 croak ("cannot set result pipe to nonblocking mode"); 738 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} 739}
792 740
793/*****************************************************************************/ 741/*****************************************************************************/
794/* work around various missing functions */
795 742
796#if !HAVE_PREADWRITE 743#if !_POSIX_MAPPED_FILES
797# define pread aio_pread 744# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
798# define pwrite aio_pwrite 745# 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 746#endif
939#else
940 res = -1;
941 errno = ENOSYS;
942#endif
943 747
944 if (res < 0 748#if !_POSIX_MEMORY_PROTECTION
945 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 749# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
946#if __solaris 750# define PROT_NONE 0
947 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 751# define PROT_WRITE 0
752# define MAP_PRIVATE 0
753# define MAP_SHARED 0
754# define MAP_FIXED 0
948#endif 755#endif
949 )
950 )
951 {
952 /* emulate sendfile. this is a major pain in the ass */
953 dBUF;
954 756
955 res = 0; 757#define MMAP_MAGIC PERL_MAGIC_ext
956 758
957 while (count) 759static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
958 { 760{
959 ssize_t cnt; 761 int old_errno = errno;
960 762 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
961 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 763 errno = old_errno;
962 764
963 if (cnt <= 0) 765 mg->mg_obj = 0; /* just in case */
964 {
965 if (cnt && !res) res = -1;
966 break;
967 }
968 766
969 cnt = write (ofd, aio_buf, cnt); 767 SvREADONLY_off (sv);
970 768
971 if (cnt <= 0) 769 if (SvPVX (sv) != mg->mg_ptr)
972 { 770 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
973 if (cnt && !res) res = -1;
974 break;
975 }
976 771
977 offset += cnt; 772 SvCUR_set (sv, 0);
978 res += cnt; 773 SvPVX (sv) = 0;
979 count -= cnt; 774 SvOK_off (sv);
980 }
981 }
982 775
983 return res; 776 return 0;
984} 777}
985 778
986/* read a full directory */ 779static MGVTBL mmap_vtbl = {
987static void scandir_ (aio_req req, worker *self) 780 0, 0, 0, 0, mmap_free
988{ 781};
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 782
1048/*****************************************************************************/ 783/*****************************************************************************/
1049 784
1050static void *aio_proc (void *thr_arg) 785static SV * get_cb (SV *cb_sv)
1051{ 786{
1052 aio_req req; 787 SvGETMAGIC (cb_sv);
1053 struct timespec ts; 788 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} 789}
1236 790
1237#define dREQ \ 791#define dREQ \
792 SV *cb_cv; \
1238 aio_req req; \ 793 aio_req req; \
1239 int req_pri = next_pri; \ 794 int req_pri = next_pri; \
1240 next_pri = DEFAULT_PRI + PRI_BIAS; \ 795 next_pri = EIO_PRI_DEFAULT; \
1241 \ 796 \
1242 if (SvOK (callback) && !SvROK (callback)) \ 797 cb_cv = get_cb (callback); \
1243 croak ("callback must be undef or of reference type"); \
1244 \ 798 \
1245 Newz (0, req, 1, aio_cb); \ 799 Newz (0, req, 1, eio_req); \
1246 if (!req) \ 800 if (!req) \
1247 croak ("out of memory during aio_req allocation"); \ 801 croak ("out of memory during eio_req allocation"); \
1248 \ 802 \
1249 req->callback = newSVsv (callback); \ 803 req->callback = SvREFCNT_inc (cb_cv); \
1250 req->pri = req_pri 804 req->pri = req_pri
1251 805
1252#define REQ_SEND \ 806#define REQ_SEND \
807 PUTBACK; \
1253 req_send (req); \ 808 req_submit (req); \
809 SPAGAIN; \
1254 \ 810 \
1255 if (GIMME_V != G_VOID) \ 811 if (GIMME_V != G_VOID) \
1256 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 812 XPUSHs (req_sv (req, aio_req_stash));
1257 813
814static void
815req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816{
817 if (SvROK (path))
818 {
819 AV *av = (AV *)SvRV (path);
820 SV *wdob;
821
822 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
823 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
824
825 path = AvARRAY (av)[1];
826 wdob = AvARRAY (av)[0];
827
828 *wd = SvAIO_WD (wdob);
829 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
830 }
831
832 *pathsv = newSVsv (path);
833 *ptr = SvPVbyte_nolen (*pathsv);
834}
835
836static void
837req_set_path1 (aio_req req, SV *path)
838{
839 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840}
841
842static void
843req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844{
845 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846
847 switch (SvTYPE (rv))
848 {
849 case SVt_PVIO:
850 case SVt_PVLV:
851 case SVt_PVGV:
852 req->type = type_fh;
853 req->sv1 = newSVsv (fh_or_path);
854 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855 break;
856
857 default:
858 req->type = type_path;
859 req_set_path1 (req, fh_or_path);
860 break;
861 }
862
863}
864
1258MODULE = IO::AIO PACKAGE = IO::AIO 865MODULE = IO::AIO PACKAGE = IO::AIO
1259 866
1260PROTOTYPES: ENABLE 867PROTOTYPES: ENABLE
1261 868
1262BOOT: 869BOOT:
1263{ 870{
871 static const struct {
872 const char *name;
873 IV iv;
874 } *civ, const_iv[] = {
875# define const_niv(name, value) { # name, (IV) value },
876# define const_iv(name) { # name, (IV) name },
877# define const_eio(name) { # name, (IV) EIO_ ## name },
878 const_iv (EXDEV)
879 const_iv (ENOSYS)
880 const_iv (O_RDONLY)
881 const_iv (O_WRONLY)
882 const_iv (O_RDWR)
883 const_iv (O_CREAT)
884 const_iv (O_TRUNC)
885 const_iv (O_EXCL)
886 const_iv (O_APPEND)
887
888 const_iv (O_ASYNC)
889 const_iv (O_DIRECT)
890 const_iv (O_NOATIME)
891
892 const_iv (O_CLOEXEC)
893 const_iv (O_NOCTTY)
894 const_iv (O_NOFOLLOW)
895 const_iv (O_NONBLOCK)
896 const_iv (O_EXEC)
897 const_iv (O_SEARCH)
898 const_iv (O_DIRECTORY)
899 const_iv (O_DSYNC)
900 const_iv (O_RSYNC)
901 const_iv (O_SYNC)
902 const_iv (O_TTY_INIT)
903
904 const_iv (S_IFIFO)
905 const_iv (S_IFCHR)
906 const_iv (S_IFBLK)
907 const_iv (S_IFLNK)
908 const_iv (S_IFREG)
909 const_iv (S_IFDIR)
910 const_iv (S_IFWHT)
911 const_iv (S_IFSOCK)
912 const_iv (S_IFMT)
913
914 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
915 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
916 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
917 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
918 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
919 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
920
921 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
922 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
923 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
924 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
925 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
926
927 const_iv (ST_RDONLY)
928 const_iv (ST_NOSUID)
929 const_iv (ST_NODEV)
930 const_iv (ST_NOEXEC)
931 const_iv (ST_SYNCHRONOUS)
932 const_iv (ST_MANDLOCK)
933 const_iv (ST_WRITE)
934 const_iv (ST_APPEND)
935 const_iv (ST_IMMUTABLE)
936 const_iv (ST_NOATIME)
937 const_iv (ST_NODIRATIME)
938 const_iv (ST_RELATIME)
939
940 const_iv (PROT_NONE)
941 const_iv (PROT_EXEC)
942 const_iv (PROT_READ)
943 const_iv (PROT_WRITE)
944
945 /*const_iv (MAP_FIXED)*/
946 const_iv (MAP_PRIVATE)
947 const_iv (MAP_SHARED)
948 const_iv (MAP_ANONYMOUS)
949
950 /* linuxish */
951 const_iv (MAP_HUGETLB)
952 const_iv (MAP_LOCKED)
953 const_iv (MAP_NORESERVE)
954 const_iv (MAP_POPULATE)
955 const_iv (MAP_NONBLOCK)
956
957 const_eio (MCL_FUTURE)
958 const_eio (MCL_CURRENT)
959
960 const_eio (MS_ASYNC)
961 const_eio (MS_INVALIDATE)
962 const_eio (MS_SYNC)
963
964 const_eio (MT_MODIFY)
965
966 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967 const_eio (SYNC_FILE_RANGE_WRITE)
968 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969
970 const_eio (FALLOC_FL_KEEP_SIZE)
971
972 const_eio (READDIR_DENTS)
973 const_eio (READDIR_DIRS_FIRST)
974 const_eio (READDIR_STAT_ORDER)
975 const_eio (READDIR_FOUND_UNKNOWN)
976
977 const_eio (DT_UNKNOWN)
978 const_eio (DT_FIFO)
979 const_eio (DT_CHR)
980 const_eio (DT_DIR)
981 const_eio (DT_BLK)
982 const_eio (DT_REG)
983 const_eio (DT_LNK)
984 const_eio (DT_SOCK)
985 const_eio (DT_WHT)
986 };
987
1264 HV *stash = gv_stashpv ("IO::AIO", 1); 988 aio_stash = gv_stashpv ("IO::AIO" , 1);
989 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
990 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
991 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1265 992
1266 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 993 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 994 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].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 995
1273 create_pipe (); 996 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1275}
1276 997
998 reinit ();
999}
1000
1277void 1001void
1002reinit ()
1003 PROTOTYPE:
1004
1005void
1278max_poll_reqs (int nreqs) 1006max_poll_reqs (unsigned int nreqs)
1279 PROTOTYPE: $ 1007 PROTOTYPE: $
1280 CODE: 1008 CODE:
1281 max_poll_reqs = nreqs; 1009 eio_set_max_poll_reqs (nreqs);
1282 1010
1283void 1011void
1284max_poll_time (double nseconds) 1012max_poll_time (double nseconds)
1285 PROTOTYPE: $ 1013 PROTOTYPE: $
1286 CODE: 1014 CODE:
1287 max_poll_time = nseconds * AIO_TICKS; 1015 eio_set_max_poll_time (nseconds);
1288 1016
1289void 1017void
1290min_parallel (int nthreads) 1018min_parallel (unsigned int nthreads)
1291 PROTOTYPE: $
1292
1293void
1294max_parallel (int nthreads)
1295 PROTOTYPE: $
1296
1297void
1298max_idle (int nthreads)
1299 PROTOTYPE: $ 1019 PROTOTYPE: $
1300 CODE: 1020 CODE:
1301 set_max_idle (nthreads); 1021 eio_set_min_parallel (nthreads);
1302 1022
1303int 1023void
1304max_outstanding (int maxreqs) 1024max_parallel (unsigned int nthreads)
1305 PROTOTYPE: $ 1025 PROTOTYPE: $
1306 CODE: 1026 CODE:
1307 RETVAL = max_outstanding; 1027 eio_set_max_parallel (nthreads);
1028
1029void
1030max_idle (unsigned int nthreads)
1031 PROTOTYPE: $
1032 CODE:
1033 eio_set_max_idle (nthreads);
1034
1035void
1036idle_timeout (unsigned int seconds)
1037 PROTOTYPE: $
1038 CODE:
1039 eio_set_idle_timeout (seconds);
1040
1041void
1042max_outstanding (unsigned int maxreqs)
1043 PROTOTYPE: $
1044 CODE:
1308 max_outstanding = maxreqs; 1045 max_outstanding = maxreqs;
1309 OUTPUT:
1310 RETVAL
1311 1046
1312void 1047void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1048aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1314 SV * pathname
1315 int flags
1316 int mode
1317 SV * callback
1318 PROTOTYPE: $$$;$
1319 PPCODE: 1049 PPCODE:
1320{ 1050{
1321 dREQ; 1051 dREQ;
1322 1052
1053 req->type = EIO_WD_OPEN;
1054 req_set_path1 (req, pathname);
1055
1056 REQ_SEND;
1057}
1058
1059void
1060aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1061 PPCODE:
1062{
1063 dREQ;
1064
1323 req->type = REQ_OPEN; 1065 req->type = EIO_OPEN;
1324 req->sv1 = newSVsv (pathname); 1066 req_set_path1 (req, pathname);
1325 req->ptr1 = SvPVbyte_nolen (pathname);
1326 req->int1 = flags; 1067 req->int1 = flags;
1327 req->mode = mode; 1068 req->int2 = mode;
1328 1069
1329 REQ_SEND; 1070 REQ_SEND;
1330} 1071}
1331 1072
1332void 1073void
1333aio_close (fh,callback=&PL_sv_undef) 1074aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1334 SV * fh
1335 SV * callback
1336 PROTOTYPE: $;$
1337 ALIAS: 1075 ALIAS:
1338 aio_close = REQ_CLOSE
1339 aio_fsync = REQ_FSYNC 1076 aio_fsync = EIO_FSYNC
1340 aio_fdatasync = REQ_FDATASYNC 1077 aio_fdatasync = EIO_FDATASYNC
1078 aio_syncfs = EIO_SYNCFS
1341 PPCODE: 1079 PPCODE:
1342{ 1080{
1081 int fd = s_fileno_croak (fh, 0);
1343 dREQ; 1082 dREQ;
1344 1083
1345 req->type = ix; 1084 req->type = ix;
1346 req->fh = newSVsv (fh); 1085 req->sv1 = newSVsv (fh);
1347 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1086 req->int1 = fd;
1348 1087
1349 REQ_SEND (req); 1088 REQ_SEND (req);
1350} 1089}
1351 1090
1352void 1091void
1092aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1093 PPCODE:
1094{
1095 int fd = s_fileno_croak (fh, 0);
1096 dREQ;
1097
1098 req->type = EIO_SYNC_FILE_RANGE;
1099 req->sv1 = newSVsv (fh);
1100 req->int1 = fd;
1101 req->offs = offset;
1102 req->size = nbytes;
1103 req->int2 = flags;
1104
1105 REQ_SEND (req);
1106}
1107
1108void
1109aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1110 PPCODE:
1111{
1112 int fd = s_fileno_croak (fh, 0);
1113 dREQ;
1114
1115 req->type = EIO_FALLOCATE;
1116 req->sv1 = newSVsv (fh);
1117 req->int1 = fd;
1118 req->int2 = mode;
1119 req->offs = offset;
1120 req->size = len;
1121
1122 REQ_SEND (req);
1123}
1124
1125void
1126aio_close (SV *fh, SV *callback=&PL_sv_undef)
1127 PPCODE:
1128{
1129 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130 int fd = s_fileno_croak (fh, 0);
1131 dREQ;
1132
1133 if (expect_false (close_fd < 0))
1134 {
1135 int pipefd [2];
1136
1137 if (
1138#ifdef _WIN32
1139 _pipe (pipefd, 1, _O_BINARY) < 0
1140#else
1141 pipe (pipefd) < 0
1142 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1143#endif
1144 || close (pipefd [1]) < 0
1145 )
1146 abort (); /*D*/
1147
1148 close_fd = pipefd [0];
1149 }
1150
1151 req->type = EIO_DUP2;
1152 req->int1 = close_fd;
1153 req->sv2 = newSVsv (fh);
1154 req->int2 = fd;
1155
1156 REQ_SEND (req);
1157}
1158
1159void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1160aio_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: 1161 ALIAS:
1361 aio_read = REQ_READ 1162 aio_read = EIO_READ
1362 aio_write = REQ_WRITE 1163 aio_write = EIO_WRITE
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1164 PPCODE:
1365{ 1165{
1366 STRLEN svlen; 1166 STRLEN svlen;
1167 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1367 char *svptr = SvPVbyte (data, svlen); 1168 char *svptr = SvPVbyte (data, svlen);
1368 1169 UV len = SvUV (length);
1369 SvUPGRADE (data, SVt_PV);
1370 SvPOK_on (data);
1371 1170
1372 if (dataoffset < 0) 1171 if (dataoffset < 0)
1373 dataoffset += svlen; 1172 dataoffset += svlen;
1374 1173
1375 if (dataoffset < 0 || dataoffset > svlen) 1174 if (dataoffset < 0 || dataoffset > svlen)
1376 croak ("data offset outside of string"); 1175 croak ("dataoffset outside of data scalar");
1377 1176
1378 if (ix == REQ_WRITE) 1177 if (ix == EIO_WRITE)
1379 { 1178 {
1380 /* write: check length and adjust. */ 1179 /* write: check length and adjust. */
1381 if (length < 0 || length + dataoffset > svlen) 1180 if (!SvOK (length) || len + dataoffset > svlen)
1382 length = svlen - dataoffset; 1181 len = svlen - dataoffset;
1383 } 1182 }
1384 else 1183 else
1385 { 1184 {
1386 /* read: grow scalar as necessary */ 1185 /* read: check type and grow scalar as necessary */
1186 SvUPGRADE (data, SVt_PV);
1387 svptr = SvGROW (data, length + dataoffset); 1187 svptr = SvGROW (data, len + dataoffset + 1);
1388 } 1188 }
1389
1390 if (length < 0)
1391 croak ("length must not be negative");
1392 1189
1393 { 1190 {
1394 dREQ; 1191 dREQ;
1395 1192
1396 req->type = ix; 1193 req->type = ix;
1397 req->fh = newSVsv (fh); 1194 req->sv1 = newSVsv (fh);
1398 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1195 req->int1 = fd;
1399 : IoOFP (sv_2io (fh))); 1196 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req->offs = offset;
1401 req->size = length; 1197 req->size = len;
1402 req->sv1 = SvREFCNT_inc (data); 1198 req->sv2 = SvREFCNT_inc (data);
1403 req->ptr1 = (char *)svptr + dataoffset; 1199 req->ptr2 = (char *)svptr + dataoffset;
1404 req->stroffset = dataoffset; 1200 req->stroffset = dataoffset;
1405 1201
1406 if (!SvREADONLY (data)) 1202 if (!SvREADONLY (data))
1407 { 1203 {
1408 SvREADONLY_on (data); 1204 SvREADONLY_on (data);
1409 req->flags |= FLAG_SV1_RO_OFF; 1205 req->flags |= FLAG_SV2_RO_OFF;
1410 } 1206 }
1411 1207
1412 REQ_SEND; 1208 REQ_SEND;
1413 } 1209 }
1414} 1210}
1415 1211
1416void 1212void
1417aio_readlink (path,callback=&PL_sv_undef) 1213aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1418 SV * path 1214 ALIAS:
1419 SV * callback 1215 aio_readlink = EIO_READLINK
1420 PROTOTYPE: $$;$ 1216 aio_realpath = EIO_REALPATH
1421 PPCODE: 1217 PPCODE:
1422{ 1218{
1423 SV *data;
1424 dREQ; 1219 dREQ;
1425 1220
1426 data = newSV (NAME_MAX);
1427 SvPOK_on (data);
1428
1429 req->type = REQ_READLINK; 1221 req->type = ix;
1430 req->fh = newSVsv (path); 1222 req_set_path1 (req, pathname);
1431 req->ptr2 = SvPVbyte_nolen (path);
1432 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data);
1434 1223
1435 REQ_SEND; 1224 REQ_SEND;
1436} 1225}
1437 1226
1438void 1227void
1439aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1228aio_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: $$$$;$
1446 PPCODE: 1229 PPCODE:
1447{ 1230{
1231 int ifd = s_fileno_croak (in_fh , 0);
1232 int ofd = s_fileno_croak (out_fh, 1);
1448 dREQ; 1233 dREQ;
1449 1234
1450 req->type = REQ_SENDFILE; 1235 req->type = EIO_SENDFILE;
1451 req->fh = newSVsv (out_fh); 1236 req->sv1 = newSVsv (out_fh);
1452 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1237 req->int1 = ofd;
1453 req->sv2 = newSVsv (in_fh); 1238 req->sv2 = newSVsv (in_fh);
1454 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1239 req->int2 = ifd;
1455 req->offs = in_offset; 1240 req->offs = in_offset;
1456 req->size = length; 1241 req->size = length;
1457 1242
1458 REQ_SEND; 1243 REQ_SEND;
1459} 1244}
1460 1245
1461void 1246void
1462aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1247aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1463 SV * fh
1464 UV offset
1465 IV length
1466 SV * callback
1467 PROTOTYPE: $$$;$
1468 PPCODE: 1248 PPCODE:
1469{ 1249{
1250 int fd = s_fileno_croak (fh, 0);
1470 dREQ; 1251 dREQ;
1471 1252
1472 req->type = REQ_READAHEAD; 1253 req->type = EIO_READAHEAD;
1473 req->fh = newSVsv (fh); 1254 req->sv1 = newSVsv (fh);
1474 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1255 req->int1 = fd;
1475 req->offs = offset; 1256 req->offs = offset;
1476 req->size = length; 1257 req->size = length;
1477 1258
1478 REQ_SEND; 1259 REQ_SEND;
1479} 1260}
1480 1261
1481void 1262void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 1263aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1483 SV * fh_or_path
1484 SV * callback
1485 ALIAS: 1264 ALIAS:
1486 aio_stat = REQ_STAT 1265 aio_stat = EIO_STAT
1487 aio_lstat = REQ_LSTAT 1266 aio_lstat = EIO_LSTAT
1267 aio_statvfs = EIO_STATVFS
1488 PPCODE: 1268 PPCODE:
1489{ 1269{
1490 dREQ; 1270 dREQ;
1491 1271
1492 req->ptr2 = malloc (sizeof (Stat_t));
1493 if (!req->ptr2)
1494 {
1495 req_free (req);
1496 croak ("out of memory during aio_req statdata allocation");
1497 }
1498
1499 req->flags |= FLAG_PTR2_FREE;
1500
1501 if (SvPOK (fh_or_path))
1502 {
1503 req->type = ix;
1504 req->sv1 = newSVsv (fh_or_path); 1272 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (fh_or_path); 1273 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1506 }
1507 else
1508 {
1509 req->type = REQ_FSTAT;
1510 req->fh = newSVsv (fh_or_path);
1511 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512 }
1513
1514 REQ_SEND; 1274 REQ_SEND;
1515} 1275}
1516 1276
1277UV
1278major (UV dev)
1279 ALIAS:
1280 minor = 1
1281 CODE:
1282 RETVAL = ix ? major (dev) : minor (dev);
1283 OUTPUT:
1284 RETVAL
1285
1286UV
1287makedev (UV maj, UV min)
1288 CODE:
1289 RETVAL = makedev (maj, min);
1290 OUTPUT:
1291 RETVAL
1292
1517void 1293void
1294aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1295 PPCODE:
1296{
1297 dREQ;
1298
1299 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1300 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1301 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1302
1303 REQ_SEND;
1304}
1305
1306void
1307aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1308 PPCODE:
1309{
1310 dREQ;
1311
1312 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1313 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1314
1315 REQ_SEND;
1316}
1317
1318void
1319aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1320 ALIAS:
1321 aio_chmod = EIO_CHMOD
1322 aio_mkdir = EIO_MKDIR
1323 PPCODE:
1324{
1325 dREQ;
1326
1327 req->int2 = mode;
1328 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1329
1330 REQ_SEND;
1331}
1332
1333void
1334aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1340 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1341 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1342
1343 REQ_SEND;
1344}
1345
1346void
1347aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1348 PPCODE:
1349{
1350 dREQ;
1351
1352 req->type = EIO_READDIR;
1353 req->sv1 = newSVsv (pathname);
1354 req->ptr1 = SvPVbyte_nolen (req->sv1);
1355 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356
1357 if (flags & EIO_READDIR_DENTS)
1358 req->int1 |= EIO_READDIR_CUSTOM2;
1359
1360 REQ_SEND;
1361}
1362
1363void
1518aio_unlink (pathname,callback=&PL_sv_undef) 1364aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1519 SV * pathname
1520 SV * callback
1521 ALIAS: 1365 ALIAS:
1522 aio_unlink = REQ_UNLINK 1366 aio_unlink = EIO_UNLINK
1523 aio_rmdir = REQ_RMDIR 1367 aio_rmdir = EIO_RMDIR
1524 aio_readdir = REQ_READDIR 1368 aio_readdir = EIO_READDIR
1525 PPCODE: 1369 PPCODE:
1526{ 1370{
1527 dREQ; 1371 dREQ;
1528 1372
1529 req->type = ix; 1373 req->type = ix;
1530 req->sv1 = newSVsv (pathname); 1374 req_set_path1 (req, pathname);
1531 req->ptr1 = SvPVbyte_nolen (pathname);
1532 1375
1533 REQ_SEND; 1376 REQ_SEND;
1534} 1377}
1535 1378
1536void 1379void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1380aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1538 SV * oldpath
1539 SV * newpath
1540 SV * callback
1541 ALIAS: 1381 ALIAS:
1542 aio_link = REQ_LINK 1382 aio_link = EIO_LINK
1543 aio_symlink = REQ_SYMLINK 1383 aio_symlink = EIO_SYMLINK
1544 aio_rename = REQ_RENAME 1384 aio_rename = EIO_RENAME
1385 PPCODE:
1386{
1387 dREQ;
1388 eio_wd wd2;
1389
1390 req->type = ix;
1391 req_set_path1 (req, oldpath);
1392 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393 req->int3 = (long)wd2;
1394
1395 REQ_SEND;
1396}
1397
1398void
1399aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1545 PPCODE: 1400 PPCODE:
1546{ 1401{
1547 dREQ; 1402 dREQ;
1548 1403
1549 req->type = ix; 1404 req->type = EIO_MKNOD;
1550 req->fh = newSVsv (oldpath); 1405 req->int2 = (mode_t)mode;
1551 req->ptr2 = SvPVbyte_nolen (req->fh); 1406 req->offs = dev;
1552 req->sv1 = newSVsv (newpath); 1407 req_set_path1 (req, pathname);
1553 req->ptr1 = SvPVbyte_nolen (newpath);
1554 1408
1555 REQ_SEND; 1409 REQ_SEND;
1556} 1410}
1557 1411
1558void 1412void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1413aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1560 SV * pathname 1414 ALIAS:
1561 SV * callback 1415 aio_mtouch = EIO_MTOUCH
1562 UV mode 1416 aio_msync = EIO_MSYNC
1563 UV dev 1417 PPCODE:
1418{
1419 STRLEN svlen;
1420 char *svptr = SvPVbyte (data, svlen);
1421 UV len = SvUV (length);
1422
1423 if (offset < 0)
1424 offset += svlen;
1425
1426 if (offset < 0 || offset > svlen)
1427 croak ("offset outside of scalar");
1428
1429 if (!SvOK (length) || len + offset > svlen)
1430 len = svlen - offset;
1431
1432 {
1433 dREQ;
1434
1435 req->type = ix;
1436 req->sv2 = SvREFCNT_inc (data);
1437 req->ptr2 = (char *)svptr + offset;
1438 req->size = len;
1439 req->int1 = flags;
1440
1441 REQ_SEND;
1442 }
1443}
1444
1445void
1446aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 STRLEN svlen;
1450 char *svptr = SvPVbyte (data, svlen);
1451 UV len = SvUV (length);
1452
1453 if (offset < 0)
1454 offset += svlen;
1455
1456 if (offset < 0 || offset > svlen)
1457 croak ("offset outside of scalar");
1458
1459 if (!SvOK (length) || len + offset > svlen)
1460 len = svlen - offset;
1461
1462 {
1463 dREQ;
1464
1465 req->type = EIO_MLOCK;
1466 req->sv2 = SvREFCNT_inc (data);
1467 req->ptr2 = (char *)svptr + offset;
1468 req->size = len;
1469
1470 REQ_SEND;
1471 }
1472}
1473
1474void
1475aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1476 PPCODE:
1477{
1478 dREQ;
1479
1480 req->type = EIO_MLOCKALL;
1481 req->int1 = flags;
1482
1483 REQ_SEND;
1484}
1485
1486void
1487aio_busy (double delay, SV *callback=&PL_sv_undef)
1564 PPCODE: 1488 PPCODE:
1565{ 1489{
1566 dREQ; 1490 dREQ;
1567 1491
1568 req->type = REQ_MKNOD; 1492 req->type = EIO_BUSY;
1569 req->sv1 = newSVsv (pathname); 1493 req->nv1 = delay < 0. ? 0. : delay;
1570 req->ptr1 = SvPVbyte_nolen (pathname); 1494
1571 req->mode = (mode_t)mode;
1572 req->offs = dev;
1573
1574 REQ_SEND; 1495 REQ_SEND;
1575} 1496}
1576 1497
1577void 1498void
1578aio_busy (delay,callback=&PL_sv_undef) 1499aio_group (SV *callback=&PL_sv_undef)
1579 double delay 1500 PPCODE:
1580 SV * callback 1501{
1502 dREQ;
1503
1504 req->type = EIO_GROUP;
1505
1506 req_submit (req);
1507 XPUSHs (req_sv (req, aio_grp_stash));
1508}
1509
1510void
1511aio_nop (SV *callback=&PL_sv_undef)
1512 ALIAS:
1513 aio_nop = EIO_NOP
1514 aio_sync = EIO_SYNC
1581 PPCODE: 1515 PPCODE:
1582{ 1516{
1583 dREQ; 1517 dREQ;
1584 1518
1585 req->type = REQ_BUSY;
1586 req->int1 = delay < 0. ? 0 : delay;
1587 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1588
1589 REQ_SEND;
1590}
1591
1592void
1593aio_group (callback=&PL_sv_undef)
1594 SV * callback
1595 PROTOTYPE: ;$
1596 PPCODE:
1597{
1598 dREQ;
1599
1600 req->type = REQ_GROUP;
1601
1602 req_send (req);
1603 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1604}
1605
1606void
1607aio_nop (callback=&PL_sv_undef)
1608 SV * callback
1609 PPCODE:
1610{
1611 dREQ;
1612
1613 req->type = REQ_NOP; 1519 req->type = ix;
1614 1520
1615 REQ_SEND; 1521 REQ_SEND;
1616} 1522}
1617 1523
1618int 1524int
1619aioreq_pri (int pri = 0) 1525aioreq_pri (int pri = 0)
1620 PROTOTYPE: ;$
1621 CODE: 1526 CODE:
1622 RETVAL = next_pri - PRI_BIAS; 1527 RETVAL = next_pri;
1623 if (items > 0) 1528 if (items > 0)
1624 { 1529 {
1625 if (pri < PRI_MIN) pri = PRI_MIN; 1530 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1626 if (pri > PRI_MAX) pri = PRI_MAX; 1531 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1627 next_pri = pri + PRI_BIAS; 1532 next_pri = pri;
1628 } 1533 }
1629 OUTPUT: 1534 OUTPUT:
1630 RETVAL 1535 RETVAL
1631 1536
1632void 1537void
1633aioreq_nice (int nice = 0) 1538aioreq_nice (int nice = 0)
1634 CODE: 1539 CODE:
1635 nice = next_pri - nice; 1540 nice = next_pri - nice;
1636 if (nice < PRI_MIN) nice = PRI_MIN; 1541 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1637 if (nice > PRI_MAX) nice = PRI_MAX; 1542 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1638 next_pri = nice + PRI_BIAS; 1543 next_pri = nice;
1639 1544
1640void 1545void
1641flush () 1546flush ()
1642 PROTOTYPE:
1643 CODE: 1547 CODE:
1644 while (nreqs) 1548 while (eio_nreqs ())
1645 { 1549 {
1646 poll_wait (); 1550 poll_wait ();
1647 poll_cb (0); 1551 poll_cb ();
1648 } 1552 }
1649 1553
1650void
1651poll()
1652 PROTOTYPE:
1653 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait ();
1657 poll_cb (0);
1658 }
1659
1660int 1554int
1661poll_fileno() 1555poll ()
1662 PROTOTYPE:
1663 CODE: 1556 CODE:
1664 RETVAL = respipe [0]; 1557 poll_wait ();
1665 OUTPUT:
1666 RETVAL
1667
1668int
1669poll_cb(...)
1670 PROTOTYPE:
1671 CODE:
1672 RETVAL = poll_cb (); 1558 RETVAL = poll_cb ();
1673 OUTPUT: 1559 OUTPUT:
1674 RETVAL 1560 RETVAL
1675 1561
1676void
1677poll_wait()
1678 PROTOTYPE:
1679 CODE:
1680 if (nreqs)
1681 poll_wait ();
1682
1683int 1562int
1684nreqs() 1563poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 1564 CODE:
1687 RETVAL = nreqs; 1565 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 1566 OUTPUT:
1689 RETVAL 1567 RETVAL
1690 1568
1691int 1569int
1692nready() 1570poll_cb (...)
1693 PROTOTYPE: 1571 PROTOTYPE:
1694 CODE: 1572 CODE:
1695 RETVAL = get_nready (); 1573 RETVAL = poll_cb ();
1696 OUTPUT: 1574 OUTPUT:
1697 RETVAL 1575 RETVAL
1698 1576
1577void
1578poll_wait ()
1579 CODE:
1580 poll_wait ();
1581
1699int 1582int
1700npending() 1583nreqs ()
1701 PROTOTYPE:
1702 CODE: 1584 CODE:
1703 RETVAL = get_npending (); 1585 RETVAL = eio_nreqs ();
1704 OUTPUT: 1586 OUTPUT:
1705 RETVAL 1587 RETVAL
1706 1588
1707int 1589int
1708nthreads() 1590nready ()
1709 PROTOTYPE:
1710 CODE: 1591 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1592 RETVAL = eio_nready ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1593 OUTPUT:
1715 RETVAL 1594 RETVAL
1716 1595
1596int
1597npending ()
1598 CODE:
1599 RETVAL = eio_npending ();
1600 OUTPUT:
1601 RETVAL
1602
1603int
1604nthreads ()
1605 CODE:
1606 RETVAL = eio_nthreads ();
1607 OUTPUT:
1608 RETVAL
1609
1610int
1611fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1612 CODE:
1613 RETVAL = posix_fadvise (fh, offset, length, advice);
1614 OUTPUT:
1615 RETVAL
1616
1617IV
1618sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1619 CODE:
1620 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621 OUTPUT:
1622 RETVAL
1623
1624void
1625mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1626 PPCODE:
1627 sv_unmagic (scalar, MMAP_MAGIC);
1628{
1629 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631 if (addr == (void *)-1)
1632 XSRETURN_NO;
1633
1634 sv_force_normal (scalar);
1635
1636 /* we store the length in mg_obj, as namlen is I32 :/ */
1637 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1638 ->mg_obj = (SV *)length;
1639
1640 SvUPGRADE (scalar, SVt_PV); /* nop... */
1641
1642 if (!(prot & PROT_WRITE))
1643 SvREADONLY_on (scalar);
1644
1645 if (SvLEN (scalar))
1646 Safefree (SvPVX (scalar));
1647
1648 SvPVX (scalar) = (char *)addr;
1649 SvCUR_set (scalar, length);
1650 SvLEN_set (scalar, 0);
1651 SvPOK_only (scalar);
1652
1653 XSRETURN_YES;
1654}
1655
1656void
1657munmap (SV *scalar)
1658 CODE:
1659 sv_unmagic (scalar, MMAP_MAGIC);
1660
1661int
1662madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663 ALIAS:
1664 mprotect = 1
1665 CODE:
1666{
1667 STRLEN svlen;
1668 void *addr = SvPVbyte (scalar, svlen);
1669 size_t len = SvUV (length);
1670
1671 if (offset < 0)
1672 offset += svlen;
1673
1674 if (offset < 0 || offset > svlen)
1675 croak ("offset outside of scalar");
1676
1677 if (!SvOK (length) || len + offset > svlen)
1678 len = svlen - offset;
1679
1680 addr = (void *)(((intptr_t)addr) + offset);
1681 eio_page_align (&addr, &len);
1682
1683 switch (ix)
1684 {
1685 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1686 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1687 }
1688}
1689 OUTPUT:
1690 RETVAL
1691
1692int
1693munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1694 CODE:
1695{
1696 STRLEN svlen;
1697 void *addr = SvPVbyte (scalar, svlen);
1698 size_t len = SvUV (length);
1699
1700 if (offset < 0)
1701 offset += svlen;
1702
1703 if (offset < 0 || offset > svlen)
1704 croak ("offset outside of scalar");
1705
1706 if (!SvOK (length) || len + offset > svlen)
1707 len = svlen - offset;
1708
1709 addr = (void *)(((intptr_t)addr) + offset);
1710 eio_page_align (&addr, &len);
1711#if _POSIX_MEMLOCK_RANGE
1712 RETVAL = munlock (addr, len);
1713#else
1714 RETVAL = ((errno = ENOSYS), -1);
1715#endif
1716}
1717 OUTPUT:
1718 RETVAL
1719
1720int
1721munlockall ()
1722 CODE:
1723#if _POSIX_MEMLOCK
1724 munlockall ();
1725#else
1726 RETVAL = -1;
1727 errno = ENOSYS;
1728#endif
1729 OUTPUT:
1730 RETVAL
1731
1732void _on_next_submit (SV *cb)
1733 CODE:
1734 SvREFCNT_dec (on_next_submit);
1735 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736
1717PROTOTYPES: DISABLE 1737PROTOTYPES: DISABLE
1718 1738
1739MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740
1741void
1742DESTROY (SV *self)
1743 CODE:
1744{
1745 aio_wd wd = SvAIO_WD (self);
1746#if HAVE_AT
1747 SV *callback = &PL_sv_undef;
1748 dREQ; /* clobbers next_pri :/ */
1749 req->type = EIO_WD_CLOSE;
1750 req->wd = wd;
1751 REQ_SEND;
1752#else
1753 eio_wd_close_sync (wd);
1754#endif
1755}
1756
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1757MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 1758
1721void 1759void
1722cancel (aio_req_ornot req) 1760cancel (aio_req_ornot req)
1723 CODE: 1761 CODE:
1724 req_cancel (req); 1762 eio_cancel (req);
1725 1763
1726void 1764void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1765cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1728 CODE: 1766 PPCODE:
1767{
1768 if (GIMME_V != G_VOID)
1769 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770
1771 if (items > 1)
1772 {
1773 SV *cb_cv =get_cb (callback);
1774
1729 SvREFCNT_dec (req->callback); 1775 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 1776 req->callback = SvREFCNT_inc (cb_cv);
1777 }
1778}
1731 1779
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1780MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 1781
1734void 1782void
1735add (aio_req grp, ...) 1783add (aio_req grp, ...)
1736 PPCODE: 1784 PPCODE:
1737{ 1785{
1738 int i; 1786 int i;
1739 aio_req req;
1740 1787
1741 if (grp->int1 == 2) 1788 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1789 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 1790
1744 for (i = 1; i < items; ++i ) 1791 for (i = 1; i < items; ++i )
1745 { 1792 {
1793 aio_req req;
1794
1746 if (GIMME_V != G_VOID) 1795 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1796 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 1797
1749 req = SvAIO_REQ (ST (i)); 1798 req = SvAIO_REQ (ST (i));
1750 1799
1751 if (req) 1800 if (req)
1752 { 1801 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 } 1802 }
1765} 1803}
1766 1804
1767void 1805void
1768cancel_subs (aio_req_ornot req) 1806cancel_subs (aio_req_ornot req)
1777 AV *av; 1815 AV *av;
1778 1816
1779 grp->errorno = errno; 1817 grp->errorno = errno;
1780 1818
1781 av = newAV (); 1819 av = newAV ();
1820 av_extend (av, items - 1);
1782 1821
1783 for (i = 1; i < items; ++i ) 1822 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 1823 av_push (av, newSVsv (ST (i)));
1785 1824
1786 SvREFCNT_dec (grp->sv1); 1825 SvREFCNT_dec (grp->sv1);
1793 grp->errorno = errorno; 1832 grp->errorno = errorno;
1794 1833
1795void 1834void
1796limit (aio_req grp, int limit) 1835limit (aio_req grp, int limit)
1797 CODE: 1836 CODE:
1798 grp->int2 = limit; 1837 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 1838
1801void 1839void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 1840feed (aio_req grp, SV *callback=&PL_sv_undef)
1803 CODE: 1841 CODE:
1804{ 1842{
1805 SvREFCNT_dec (grp->sv2); 1843 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 1844 grp->sv2 = newSVsv (callback);
1845 grp->feed = aio_grp_feed;
1807 1846
1808 if (grp->int2 <= 0) 1847 if (grp->int2 <= 0)
1809 grp->int2 = 2; 1848 grp->int2 = 2;
1810 1849
1811 aio_grp_feed (grp); 1850 eio_grp_limit (grp, grp->int2);
1812} 1851}
1813 1852

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