ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.87 by root, Mon Oct 30 23:42:27 2006 UTC vs.
Revision 1.202 by root, Thu Sep 29 10:01:35 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
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
327/* must be called at most once */ 360/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
329{ 363{
330 if (!req->self) 364 if (!req->self)
331 { 365 {
332 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
333 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
334 } 368 }
335 369
336 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
337} 371}
338 372
339static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
340{ 381{
341 MAGIC *mg; 382 MAGIC *mg;
342 383
343 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 384 if (!SvROK (sv)
385 || (SvSTASH (SvRV (sv)) != aio_grp_stash
386 && SvSTASH (SvRV (sv)) != aio_req_stash
387 && !sv_derived_from (sv, "IO::AIO::REQ")))
344 croak ("object of class " AIO_REQ_KLASS " expected"); 388 croak ("object of class IO::AIO::REQ expected");
345 389
346 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
347 391
348 return mg ? (aio_req)mg->mg_ptr : 0; 392 return mg ? (aio_req)mg->mg_ptr : 0;
349} 393}
350 394
395static aio_wd
396SvAIO_WD (SV *sv)
397{
398 if (!SvROK (sv)
399 || SvSTASH (SvRV (sv)) != aio_wd_stash
400 || SvTYPE (SvRV (sv)) != SVt_PVMG)
401 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402
403 return (aio_wd)(long)SvIVX (SvRV (sv));
404}
405
406static void
351static void aio_grp_feed (aio_req grp) 407aio_grp_feed (aio_req grp)
352{ 408{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 409 if (grp->sv2 && SvOK (grp->sv2))
354 { 410 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 411 dSP;
360 412
361 ENTER; 413 ENTER;
362 SAVETMPS; 414 SAVETMPS;
363 PUSHMARK (SP); 415 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 417 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 419 SPAGAIN;
368 FREETMPS; 420 FREETMPS;
369 LEAVE; 421 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 422 }
380} 423}
381 424
382static void aio_grp_dec (aio_req grp) 425static void
426req_submit (eio_req *req)
383{ 427{
384 --grp->size; 428 eio_submit (req);
385 429
386 /* call feeder, if applicable */ 430 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 431 {
392 req_invoke (grp); 432 dSP;
393 req_free (grp); 433 SV *cb = sv_2mortal (on_next_submit);
434
435 on_next_submit = 0;
436
437 PUSHMARK (SP);
438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
394 } 440 }
395} 441}
396 442
443static int
397static void req_invoke (aio_req req) 444req_invoke (eio_req *req)
398{ 445{
399 dSP;
400
401 if (req->flags & FLAG_SV1_RO_OFF) 446 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 447 SvREADONLY_off (req->sv2);
403 448
404 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 449 if (!EIO_CANCELLED (req) && req->callback)
405 { 450 {
451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
454
406 ENTER; 455 ENTER;
407 SAVETMPS; 456 SAVETMPS;
408 PUSHMARK (SP); 457 PUSHMARK (SP);
409 EXTEND (SP, 1); 458 EXTEND (SP, 1);
410 459
460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
462 {
463 sv_result = sv_result_cache; sv_result_cache = 0;
464 SvIV_set (sv_result, req->result);
465 SvIOK_only (sv_result);
466 }
467 else
468 {
469 sv_result = newSViv (req->result);
470 SvREADONLY_on (sv_result);
471 }
472
411 switch (req->type) 473 switch (req->type)
412 { 474 {
475 case EIO_WD_OPEN:
476 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
413 case REQ_READDIR: 479 case EIO_READDIR:
414 { 480 {
415 SV *rv = &PL_sv_undef; 481 SV *rv = &PL_sv_undef;
416 482
417 if (req->result >= 0) 483 if (req->result >= 0)
418 { 484 {
419 int i; 485 int i;
420 char *buf = req->ptr2; 486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
421 AV *av = newAV (); 488 AV *av = newAV ();
422 489
423 av_extend (av, req->result - 1); 490 av_extend (av, req->result - 1);
424 491
425 for (i = 0; i < req->result; ++i) 492 for (i = 0; i < req->result; ++i)
426 { 493 {
427 SV *sv = newSVpv (buf, 0); 494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428 497
498 if (req->int1 & EIO_READDIR_CUSTOM2)
499 {
500 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
501 AV *avent = newAV ();
502
503 av_extend (avent, 2);
504
505 if (!sv_type [ent->type])
506 {
507 sv_type [ent->type] = newSViv (ent->type);
508 SvREADONLY_on (sv_type [ent->type]);
509 }
510
511 av_store (avent, 0, namesv);
512 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
513 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
514
515 av_store (av, i, newRV_noinc ((SV *)avent));
516 }
517 else
429 av_store (av, i, sv); 518 av_store (av, i, namesv);
519
520 ++ent;
521 }
522 else
523 {
524 SV *name = newSVpv (names, 0);
525 av_store (av, i, name);
430 buf += SvCUR (sv) + 1; 526 names += SvCUR (name) + 1;
527 }
431 } 528 }
432 529
433 rv = sv_2mortal (newRV_noinc ((SV *)av)); 530 rv = sv_2mortal (newRV_noinc ((SV *)av));
434 } 531 }
435 532
436 PUSHs (rv); 533 PUSHs (rv);
534
535 if (req->int1 & EIO_READDIR_CUSTOM1)
536 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
437 } 537 }
438 break; 538 break;
439 539
440 case REQ_OPEN: 540 case EIO_OPEN:
441 { 541 {
442 /* convert fd to fh */ 542 /* convert fd to fh */
443 SV *fh; 543 SV *fh = &PL_sv_undef;
444 544
445 PUSHs (sv_2mortal (newSViv (req->result))); 545 if (req->result >= 0)
446 PUTBACK; 546 {
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 547 GV *gv = (GV *)sv_newmortal ();
448 SPAGAIN; 548 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
549 char sym [64];
550 int symlen;
551
552 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
553 gv_init (gv, aio_stash, sym, symlen, 0);
449 554
450 fh = SvREFCNT_inc (POPs); 555 symlen = snprintf (
556 sym,
557 sizeof (sym),
558 "%s&=%d",
559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560 (int)req->result
561 );
451 562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
452 PUSHMARK (SP); 567 PUSHs (fh);
453 XPUSHs (sv_2mortal (fh));
454 } 568 }
455 break; 569 break;
456 570
571 case EIO_STATVFS:
572 case EIO_FSTATVFS:
573 {
574 SV *rv = &PL_sv_undef;
575
576#ifndef _WIN32
577 if (req->result >= 0)
578 {
579 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580 HV *hv = newHV ();
581
582 rv = sv_2mortal (newRV_noinc ((SV *)hv));
583
584 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
586 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
587 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
593 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595 }
596#endif
597
598 PUSHs (rv);
599 }
600
601 break;
602
457 case REQ_GROUP: 603 case EIO_GROUP:
458 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
459 605
460 if (req->sv1) 606 if (req->sv1)
461 { 607 {
462 int i; 608 int i;
… …
466 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
467 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
468 } 614 }
469 break; 615 break;
470 616
471 case REQ_NOP: 617 case EIO_NOP:
472 case REQ_BUSY: 618 case EIO_BUSY:
473 break; 619 break;
474 620
475 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
476 if (req->result > 0) 623 if (req->result > 0)
477 { 624 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; 625 break;
483 626
484 case REQ_STAT: 627 case EIO_STAT:
485 case REQ_LSTAT: 628 case EIO_LSTAT:
486 case REQ_FSTAT: 629 case EIO_FSTAT:
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
488 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
489 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
490 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
491 break; 637 break;
492 638
493 case REQ_READ: 639 case EIO_READ:
640 {
494 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
495 *SvEND (req->sv1) = 0; 642 *SvEND (req->sv2) = 0;
496 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
497 break; 647 break;
498 648
649 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650 if (req->result > 0)
651 SvIV_set (sv_result, 0);
652 /* FALLTHROUGH */
653
499 default: 654 default:
500 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
501 break; 656 break;
502 } 657 }
503 658
504 errno = req->errorno; 659 errno = req->errorno;
505 660
506 PUTBACK; 661 PUTBACK;
507 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508 SPAGAIN; 663 SPAGAIN;
664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
509 669
510 FREETMPS; 670 FREETMPS;
511 LEAVE; 671 LEAVE;
672
673 PUTBACK;
512 } 674 }
513 675
514 if (req->grp) 676 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} 677}
534 678
535static void req_free (aio_req req) 679static void
680req_destroy (aio_req req)
536{ 681{
537 if (req->self) 682 if (req->self)
538 { 683 {
539 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
540 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
541 } 686 }
542 687
543 SvREFCNT_dec (req->fh);
544 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
545 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
546 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
547 693
548 if (req->flags & FLAG_PTR2_FREE)
549 free (req->ptr2);
550
551 Safefree (req); 694 Safefree (req);
552} 695}
553 696
697static void
554static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
555{ 699{
556 aio_req sub;
557
558 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
559 return; 701 return;
560 702
561 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
562 grp->sv2 = 0; 704 grp->sv2 = 0;
563 705
564 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
565 req_cancel (sub);
566} 707}
567 708
568static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
569{ 711{
570 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
571 713 croak ("IO::AIO: unable to initialize result pipe");
572 req_cancel_subs (req);
573} 714}
574 715
575static void *aio_proc(void *arg); 716static void
576 717poll_wait (void)
577static void start_thread (void)
578{ 718{
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 ()
681{
682 fd_set rfd;
683
684 while (nreqs) 719 while (eio_nreqs ())
685 { 720 {
686 int size; 721 int size;
687 if (WORDACCESS_UNSAFE) LOCK (reslock); 722
723 X_LOCK (reslock);
688 size = res_queue.size; 724 size = res_queue.size;
689 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 725 X_UNLOCK (reslock);
690 726
691 if (size) 727 if (size)
692 return; 728 return;
693 729
694 maybe_start_thread (); 730 etp_maybe_start_thread ();
695 731
696 FD_ZERO(&rfd); 732 s_epipe_wait (&respipe);
697 FD_SET(respipe [0], &rfd);
698
699 select (respipe [0] + 1, &rfd, 0, 0, 0);
700 } 733 }
701} 734}
702 735
703static int poll_cb () 736static int
737poll_cb (void)
704{ 738{
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 (;;) 739 for (;;)
716 { 740 {
717 for (;;) 741 int res = eio_poll ();
718 {
719 maybe_start_thread ();
720 742
721 LOCK (reslock); 743 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; 744 croak (0);
745
746 if (!max_outstanding || max_outstanding > eio_nreqs ())
747 return res;
772 748
773 poll_wait (); 749 poll_wait ();
774
775 ++maxreqs;
776 } 750 }
777
778 return count;
779} 751}
780 752
781static void create_pipe () 753static void ecb_cold
754reinit (void)
782{ 755{
783 if (pipe (respipe)) 756 create_respipe ();
784 croak ("unable to initialize result pipe");
785 757
786 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 758 if (eio_init (want_poll, done_poll) < 0)
787 croak ("cannot set result pipe to nonblocking mode"); 759 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} 760}
792 761
793/*****************************************************************************/ 762/*****************************************************************************/
794/* work around various missing functions */
795 763
796#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
797# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
798# define pwrite aio_pwrite 766# 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 767#endif
939#else
940 res = -1;
941 errno = ENOSYS;
942#endif
943 768
944 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
945 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
946#if __solaris 771# define PROT_NONE 0
947 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
948#endif 776#endif
949 )
950 )
951 {
952 /* emulate sendfile. this is a major pain in the ass */
953 dBUF;
954 777
955 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
956 779
957 while (count) 780static int ecb_cold
958 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
959 ssize_t cnt; 782{
960 783 int old_errno = errno;
961 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 784 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785 errno = old_errno;
962 786
963 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
964 {
965 if (cnt && !res) res = -1;
966 break;
967 }
968 788
969 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
970 790
971 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
972 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
973 if (cnt && !res) res = -1;
974 break;
975 }
976 793
977 offset += cnt; 794 SvCUR_set (sv, 0);
978 res += cnt; 795 SvPVX (sv) = 0;
979 count -= cnt; 796 SvOK_off (sv);
980 }
981 }
982 797
983 return res; 798 return 0;
984} 799}
985 800
986/* read a full directory */ 801static MGVTBL mmap_vtbl = {
987static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
988{ 803};
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 804
1048/*****************************************************************************/ 805/*****************************************************************************/
1049 806
1050static void *aio_proc (void *thr_arg) 807static SV *
808get_cb (SV *cb_sv)
1051{ 809{
1052 aio_req req; 810 SvGETMAGIC (cb_sv);
1053 struct timespec ts; 811 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} 812}
1236 813
1237#define dREQ \ 814#define dREQ \
815 SV *cb_cv; \
1238 aio_req req; \ 816 aio_req req; \
1239 int req_pri = next_pri; \ 817 int req_pri = next_pri; \
1240 next_pri = DEFAULT_PRI + PRI_BIAS; \ 818 next_pri = EIO_PRI_DEFAULT; \
1241 \ 819 \
1242 if (SvOK (callback) && !SvROK (callback)) \ 820 cb_cv = get_cb (callback); \
1243 croak ("callback must be undef or of reference type"); \
1244 \ 821 \
1245 Newz (0, req, 1, aio_cb); \ 822 Newz (0, req, 1, eio_req); \
1246 if (!req) \ 823 if (!req) \
1247 croak ("out of memory during aio_req allocation"); \ 824 croak ("out of memory during eio_req allocation"); \
1248 \ 825 \
1249 req->callback = newSVsv (callback); \ 826 req->callback = SvREFCNT_inc (cb_cv); \
1250 req->pri = req_pri 827 req->pri = req_pri
1251 828
1252#define REQ_SEND \ 829#define REQ_SEND \
830 PUTBACK; \
1253 req_send (req); \ 831 req_submit (req); \
832 SPAGAIN; \
1254 \ 833 \
1255 if (GIMME_V != G_VOID) \ 834 if (GIMME_V != G_VOID) \
1256 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 835 XPUSHs (req_sv (req, aio_req_stash));
1257 836
837ecb_inline void
838req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839{
840 if (expect_false (SvROK (path)))
841 {
842 AV *av = (AV *)SvRV (path);
843 SV *wdob;
844
845 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
846 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848 path = AvARRAY (av)[1];
849 wdob = AvARRAY (av)[0];
850
851 if (SvOK (wdob))
852 {
853 *wd = SvAIO_WD (wdob);
854 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
855 }
856 else
857 *wd = EIO_INVALID_WD;
858 }
859
860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 break;
884
885 default:
886 req->type = type_path;
887 req_set_path1 (req, fh_or_path);
888 break;
889 }
890}
891
892XS(boot_IO__AIO) ecb_cold;
893
1258MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1259 895
1260PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1261 897
1262BOOT: 898BOOT:
1263{ 899{
900 static const struct {
901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907 const_iv (EXDEV)
908 const_iv (ENOSYS)
909 const_iv (O_RDONLY)
910 const_iv (O_WRONLY)
911 const_iv (O_RDWR)
912 const_iv (O_CREAT)
913 const_iv (O_TRUNC)
914 const_iv (O_EXCL)
915 const_iv (O_APPEND)
916
917 const_iv (O_ASYNC)
918 const_iv (O_DIRECT)
919 const_iv (O_NOATIME)
920
921 const_iv (O_CLOEXEC)
922 const_iv (O_NOCTTY)
923 const_iv (O_NOFOLLOW)
924 const_iv (O_NONBLOCK)
925 const_iv (O_EXEC)
926 const_iv (O_SEARCH)
927 const_iv (O_DIRECTORY)
928 const_iv (O_DSYNC)
929 const_iv (O_RSYNC)
930 const_iv (O_SYNC)
931 const_iv (O_TTY_INIT)
932
933 const_iv (S_IFIFO)
934 const_iv (S_IFCHR)
935 const_iv (S_IFBLK)
936 const_iv (S_IFLNK)
937 const_iv (S_IFREG)
938 const_iv (S_IFDIR)
939 const_iv (S_IFWHT)
940 const_iv (S_IFSOCK)
941 const_iv (S_IFMT)
942
943 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
944 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
945 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
946 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
947 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
948 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
949
950 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
951 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
952 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
953 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
954 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
955
956 const_iv (ST_RDONLY)
957 const_iv (ST_NOSUID)
958 const_iv (ST_NODEV)
959 const_iv (ST_NOEXEC)
960 const_iv (ST_SYNCHRONOUS)
961 const_iv (ST_MANDLOCK)
962 const_iv (ST_WRITE)
963 const_iv (ST_APPEND)
964 const_iv (ST_IMMUTABLE)
965 const_iv (ST_NOATIME)
966 const_iv (ST_NODIRATIME)
967 const_iv (ST_RELATIME)
968
969 const_iv (PROT_NONE)
970 const_iv (PROT_EXEC)
971 const_iv (PROT_READ)
972 const_iv (PROT_WRITE)
973
974 /*const_iv (MAP_FIXED)*/
975 const_iv (MAP_PRIVATE)
976 const_iv (MAP_SHARED)
977 const_iv (MAP_ANONYMOUS)
978
979 /* linuxish */
980 const_iv (MAP_HUGETLB)
981 const_iv (MAP_LOCKED)
982 const_iv (MAP_NORESERVE)
983 const_iv (MAP_POPULATE)
984 const_iv (MAP_NONBLOCK)
985
986 const_eio (MCL_FUTURE)
987 const_eio (MCL_CURRENT)
988
989 const_eio (MS_ASYNC)
990 const_eio (MS_INVALIDATE)
991 const_eio (MS_SYNC)
992
993 const_eio (MT_MODIFY)
994
995 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
996 const_eio (SYNC_FILE_RANGE_WRITE)
997 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
998
999 const_eio (FALLOC_FL_KEEP_SIZE)
1000
1001 const_eio (READDIR_DENTS)
1002 const_eio (READDIR_DIRS_FIRST)
1003 const_eio (READDIR_STAT_ORDER)
1004 const_eio (READDIR_FOUND_UNKNOWN)
1005
1006 const_eio (DT_UNKNOWN)
1007 const_eio (DT_FIFO)
1008 const_eio (DT_CHR)
1009 const_eio (DT_DIR)
1010 const_eio (DT_BLK)
1011 const_eio (DT_REG)
1012 const_eio (DT_LNK)
1013 const_eio (DT_SOCK)
1014 const_eio (DT_WHT)
1015 };
1016
1264 HV *stash = gv_stashpv ("IO::AIO", 1); 1017 aio_stash = gv_stashpv ("IO::AIO" , 1);
1018 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1019 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1020 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1265 1021
1266 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1022 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1023 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 1024
1273 create_pipe (); 1025 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1275}
1276 1026
1027 reinit ();
1028}
1029
1277void 1030void
1031reinit ()
1032 PROTOTYPE:
1033
1034void
1278max_poll_reqs (int nreqs) 1035max_poll_reqs (unsigned int nreqs)
1279 PROTOTYPE: $ 1036 PROTOTYPE: $
1280 CODE: 1037 CODE:
1281 max_poll_reqs = nreqs; 1038 eio_set_max_poll_reqs (nreqs);
1282 1039
1283void 1040void
1284max_poll_time (double nseconds) 1041max_poll_time (double nseconds)
1285 PROTOTYPE: $ 1042 PROTOTYPE: $
1286 CODE: 1043 CODE:
1287 max_poll_time = nseconds * AIO_TICKS; 1044 eio_set_max_poll_time (nseconds);
1288 1045
1289void 1046void
1290min_parallel (int nthreads) 1047min_parallel (unsigned int nthreads)
1291 PROTOTYPE: $
1292
1293void
1294max_parallel (int nthreads)
1295 PROTOTYPE: $
1296
1297void
1298max_idle (int nthreads)
1299 PROTOTYPE: $ 1048 PROTOTYPE: $
1300 CODE: 1049 CODE:
1301 set_max_idle (nthreads); 1050 eio_set_min_parallel (nthreads);
1302 1051
1303int 1052void
1304max_outstanding (int maxreqs) 1053max_parallel (unsigned int nthreads)
1305 PROTOTYPE: $ 1054 PROTOTYPE: $
1306 CODE: 1055 CODE:
1307 RETVAL = max_outstanding; 1056 eio_set_max_parallel (nthreads);
1057
1058void
1059max_idle (unsigned int nthreads)
1060 PROTOTYPE: $
1061 CODE:
1062 eio_set_max_idle (nthreads);
1063
1064void
1065idle_timeout (unsigned int seconds)
1066 PROTOTYPE: $
1067 CODE:
1068 eio_set_idle_timeout (seconds);
1069
1070void
1071max_outstanding (unsigned int maxreqs)
1072 PROTOTYPE: $
1073 CODE:
1308 max_outstanding = maxreqs; 1074 max_outstanding = maxreqs;
1309 OUTPUT:
1310 RETVAL
1311 1075
1312void 1076void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1077aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1314 SV * pathname
1315 int flags
1316 int mode
1317 SV * callback
1318 PROTOTYPE: $$$;$
1319 PPCODE: 1078 PPCODE:
1320{ 1079{
1321 dREQ; 1080 dREQ;
1322 1081
1082 req->type = EIO_WD_OPEN;
1083 req_set_path1 (req, pathname);
1084
1085 REQ_SEND;
1086}
1087
1088void
1089aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1090 PPCODE:
1091{
1092 dREQ;
1093
1323 req->type = REQ_OPEN; 1094 req->type = EIO_OPEN;
1324 req->sv1 = newSVsv (pathname); 1095 req_set_path1 (req, pathname);
1325 req->ptr1 = SvPVbyte_nolen (pathname);
1326 req->int1 = flags; 1096 req->int1 = flags;
1327 req->mode = mode; 1097 req->int2 = mode;
1328 1098
1329 REQ_SEND; 1099 REQ_SEND;
1330} 1100}
1331 1101
1332void 1102void
1333aio_close (fh,callback=&PL_sv_undef) 1103aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1334 SV * fh
1335 SV * callback
1336 PROTOTYPE: $;$
1337 ALIAS: 1104 ALIAS:
1338 aio_close = REQ_CLOSE
1339 aio_fsync = REQ_FSYNC 1105 aio_fsync = EIO_FSYNC
1340 aio_fdatasync = REQ_FDATASYNC 1106 aio_fdatasync = EIO_FDATASYNC
1107 aio_syncfs = EIO_SYNCFS
1341 PPCODE: 1108 PPCODE:
1342{ 1109{
1110 int fd = s_fileno_croak (fh, 0);
1343 dREQ; 1111 dREQ;
1344 1112
1345 req->type = ix; 1113 req->type = ix;
1346 req->fh = newSVsv (fh); 1114 req->sv1 = newSVsv (fh);
1347 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1115 req->int1 = fd;
1348 1116
1349 REQ_SEND (req); 1117 REQ_SEND (req);
1350} 1118}
1351 1119
1352void 1120void
1121aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1122 PPCODE:
1123{
1124 int fd = s_fileno_croak (fh, 0);
1125 dREQ;
1126
1127 req->type = EIO_SYNC_FILE_RANGE;
1128 req->sv1 = newSVsv (fh);
1129 req->int1 = fd;
1130 req->offs = offset;
1131 req->size = nbytes;
1132 req->int2 = flags;
1133
1134 REQ_SEND (req);
1135}
1136
1137void
1138aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1139 PPCODE:
1140{
1141 int fd = s_fileno_croak (fh, 0);
1142 dREQ;
1143
1144 req->type = EIO_FALLOCATE;
1145 req->sv1 = newSVsv (fh);
1146 req->int1 = fd;
1147 req->int2 = mode;
1148 req->offs = offset;
1149 req->size = len;
1150
1151 REQ_SEND (req);
1152}
1153
1154void
1155aio_close (SV *fh, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1159 int fd = s_fileno_croak (fh, 0);
1160 dREQ;
1161
1162 if (expect_false (close_fd < 0))
1163 {
1164 int pipefd [2];
1165
1166 if (
1167#ifdef _WIN32
1168 _pipe (pipefd, 1, _O_BINARY) < 0
1169#else
1170 pipe (pipefd) < 0
1171 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1172#endif
1173 || close (pipefd [1]) < 0
1174 )
1175 abort (); /*D*/
1176
1177 close_fd = pipefd [0];
1178 }
1179
1180 req->type = EIO_DUP2;
1181 req->int1 = close_fd;
1182 req->sv2 = newSVsv (fh);
1183 req->int2 = fd;
1184
1185 REQ_SEND (req);
1186}
1187
1188void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1189aio_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: 1190 ALIAS:
1361 aio_read = REQ_READ 1191 aio_read = EIO_READ
1362 aio_write = REQ_WRITE 1192 aio_write = EIO_WRITE
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1193 PPCODE:
1365{ 1194{
1366 STRLEN svlen; 1195 STRLEN svlen;
1196 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1367 char *svptr = SvPVbyte (data, svlen); 1197 char *svptr = SvPVbyte (data, svlen);
1368 1198 UV len = SvUV (length);
1369 SvUPGRADE (data, SVt_PV);
1370 SvPOK_on (data);
1371 1199
1372 if (dataoffset < 0) 1200 if (dataoffset < 0)
1373 dataoffset += svlen; 1201 dataoffset += svlen;
1374 1202
1375 if (dataoffset < 0 || dataoffset > svlen) 1203 if (dataoffset < 0 || dataoffset > svlen)
1376 croak ("data offset outside of string"); 1204 croak ("dataoffset outside of data scalar");
1377 1205
1378 if (ix == REQ_WRITE) 1206 if (ix == EIO_WRITE)
1379 { 1207 {
1380 /* write: check length and adjust. */ 1208 /* write: check length and adjust. */
1381 if (length < 0 || length + dataoffset > svlen) 1209 if (!SvOK (length) || len + dataoffset > svlen)
1382 length = svlen - dataoffset; 1210 len = svlen - dataoffset;
1383 } 1211 }
1384 else 1212 else
1385 { 1213 {
1386 /* read: grow scalar as necessary */ 1214 /* read: check type and grow scalar as necessary */
1215 SvUPGRADE (data, SVt_PV);
1387 svptr = SvGROW (data, length + dataoffset); 1216 svptr = SvGROW (data, len + dataoffset + 1);
1388 } 1217 }
1389
1390 if (length < 0)
1391 croak ("length must not be negative");
1392 1218
1393 { 1219 {
1394 dREQ; 1220 dREQ;
1395 1221
1396 req->type = ix; 1222 req->type = ix;
1397 req->fh = newSVsv (fh); 1223 req->sv1 = newSVsv (fh);
1398 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1224 req->int1 = fd;
1399 : IoOFP (sv_2io (fh))); 1225 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req->offs = offset;
1401 req->size = length; 1226 req->size = len;
1402 req->sv1 = SvREFCNT_inc (data); 1227 req->sv2 = SvREFCNT_inc (data);
1403 req->ptr1 = (char *)svptr + dataoffset; 1228 req->ptr2 = (char *)svptr + dataoffset;
1404 req->stroffset = dataoffset; 1229 req->stroffset = dataoffset;
1405 1230
1406 if (!SvREADONLY (data)) 1231 if (!SvREADONLY (data))
1407 { 1232 {
1408 SvREADONLY_on (data); 1233 SvREADONLY_on (data);
1409 req->flags |= FLAG_SV1_RO_OFF; 1234 req->flags |= FLAG_SV2_RO_OFF;
1410 } 1235 }
1411 1236
1412 REQ_SEND; 1237 REQ_SEND;
1413 } 1238 }
1414} 1239}
1415 1240
1416void 1241void
1417aio_readlink (path,callback=&PL_sv_undef) 1242aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1418 SV * path 1243 ALIAS:
1419 SV * callback 1244 aio_readlink = EIO_READLINK
1420 PROTOTYPE: $$;$ 1245 aio_realpath = EIO_REALPATH
1421 PPCODE: 1246 PPCODE:
1422{ 1247{
1423 SV *data;
1424 dREQ; 1248 dREQ;
1425 1249
1426 data = newSV (NAME_MAX);
1427 SvPOK_on (data);
1428
1429 req->type = REQ_READLINK; 1250 req->type = ix;
1430 req->fh = newSVsv (path); 1251 req_set_path1 (req, pathname);
1431 req->ptr2 = SvPVbyte_nolen (path);
1432 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data);
1434 1252
1435 REQ_SEND; 1253 REQ_SEND;
1436} 1254}
1437 1255
1438void 1256void
1439aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1257aio_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: $$$$;$
1446 PPCODE: 1258 PPCODE:
1447{ 1259{
1260 int ifd = s_fileno_croak (in_fh , 0);
1261 int ofd = s_fileno_croak (out_fh, 1);
1448 dREQ; 1262 dREQ;
1449 1263
1450 req->type = REQ_SENDFILE; 1264 req->type = EIO_SENDFILE;
1451 req->fh = newSVsv (out_fh); 1265 req->sv1 = newSVsv (out_fh);
1452 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1266 req->int1 = ofd;
1453 req->sv2 = newSVsv (in_fh); 1267 req->sv2 = newSVsv (in_fh);
1454 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1268 req->int2 = ifd;
1455 req->offs = in_offset; 1269 req->offs = in_offset;
1456 req->size = length; 1270 req->size = length;
1457 1271
1458 REQ_SEND; 1272 REQ_SEND;
1459} 1273}
1460 1274
1461void 1275void
1462aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1276aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1463 SV * fh
1464 UV offset
1465 IV length
1466 SV * callback
1467 PROTOTYPE: $$$;$
1468 PPCODE: 1277 PPCODE:
1469{ 1278{
1279 int fd = s_fileno_croak (fh, 0);
1470 dREQ; 1280 dREQ;
1471 1281
1472 req->type = REQ_READAHEAD; 1282 req->type = EIO_READAHEAD;
1473 req->fh = newSVsv (fh); 1283 req->sv1 = newSVsv (fh);
1474 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1284 req->int1 = fd;
1475 req->offs = offset; 1285 req->offs = offset;
1476 req->size = length; 1286 req->size = length;
1477 1287
1478 REQ_SEND; 1288 REQ_SEND;
1479} 1289}
1480 1290
1481void 1291void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 1292aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1483 SV * fh_or_path
1484 SV * callback
1485 ALIAS: 1293 ALIAS:
1486 aio_stat = REQ_STAT 1294 aio_stat = EIO_STAT
1487 aio_lstat = REQ_LSTAT 1295 aio_lstat = EIO_LSTAT
1296 aio_statvfs = EIO_STATVFS
1488 PPCODE: 1297 PPCODE:
1489{ 1298{
1490 dREQ; 1299 dREQ;
1491 1300
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); 1301 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (fh_or_path); 1302 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; 1303 REQ_SEND;
1515} 1304}
1516 1305
1306UV
1307major (UV dev)
1308 ALIAS:
1309 minor = 1
1310 CODE:
1311 RETVAL = ix ? major (dev) : minor (dev);
1312 OUTPUT:
1313 RETVAL
1314
1315UV
1316makedev (UV maj, UV min)
1317 CODE:
1318 RETVAL = makedev (maj, min);
1319 OUTPUT:
1320 RETVAL
1321
1517void 1322void
1323aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1324 PPCODE:
1325{
1326 dREQ;
1327
1328 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1329 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1330 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1331
1332 REQ_SEND;
1333}
1334
1335void
1336aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1337 PPCODE:
1338{
1339 dREQ;
1340
1341 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1342 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1343
1344 REQ_SEND;
1345}
1346
1347void
1348aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1349 PPCODE:
1350{
1351 dREQ;
1352
1353 req->int2 = mode;
1354 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1355
1356 REQ_SEND;
1357}
1358
1359void
1360aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1361 PPCODE:
1362{
1363 dREQ;
1364
1365 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1366 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1367 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1368
1369 REQ_SEND;
1370}
1371
1372void
1373aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1374 PPCODE:
1375{
1376 dREQ;
1377
1378 req->type = EIO_READDIR;
1379 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1380
1381 if (flags & EIO_READDIR_DENTS)
1382 req->int1 |= EIO_READDIR_CUSTOM2;
1383
1384 req_set_path1 (req, pathname);
1385
1386 REQ_SEND;
1387}
1388
1389void
1390aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1391 PPCODE:
1392{
1393 dREQ;
1394
1395 req->type = EIO_MKDIR;
1396 req->int2 = mode;
1397 req_set_path1 (req, pathname);
1398
1399 REQ_SEND;
1400}
1401
1402void
1518aio_unlink (pathname,callback=&PL_sv_undef) 1403aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1519 SV * pathname
1520 SV * callback
1521 ALIAS: 1404 ALIAS:
1522 aio_unlink = REQ_UNLINK 1405 aio_unlink = EIO_UNLINK
1523 aio_rmdir = REQ_RMDIR 1406 aio_rmdir = EIO_RMDIR
1524 aio_readdir = REQ_READDIR 1407 aio_readdir = EIO_READDIR
1525 PPCODE: 1408 PPCODE:
1526{ 1409{
1527 dREQ; 1410 dREQ;
1528 1411
1529 req->type = ix; 1412 req->type = ix;
1530 req->sv1 = newSVsv (pathname); 1413 req_set_path1 (req, pathname);
1531 req->ptr1 = SvPVbyte_nolen (pathname);
1532 1414
1533 REQ_SEND; 1415 REQ_SEND;
1534} 1416}
1535 1417
1536void 1418void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1419aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1538 SV * oldpath
1539 SV * newpath
1540 SV * callback
1541 ALIAS: 1420 ALIAS:
1542 aio_link = REQ_LINK 1421 aio_link = EIO_LINK
1543 aio_symlink = REQ_SYMLINK 1422 aio_symlink = EIO_SYMLINK
1544 aio_rename = REQ_RENAME 1423 aio_rename = EIO_RENAME
1424 PPCODE:
1425{
1426 dREQ;
1427 eio_wd wd2 = 0;
1428
1429 req->type = ix;
1430 req_set_path1 (req, oldpath);
1431 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1432 req->int3 = (long)wd2;
1433
1434 REQ_SEND;
1435}
1436
1437void
1438aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1545 PPCODE: 1439 PPCODE:
1546{ 1440{
1547 dREQ; 1441 dREQ;
1548 1442
1549 req->type = ix; 1443 req->type = EIO_MKNOD;
1550 req->fh = newSVsv (oldpath); 1444 req->int2 = (mode_t)mode;
1551 req->ptr2 = SvPVbyte_nolen (req->fh); 1445 req->offs = dev;
1552 req->sv1 = newSVsv (newpath); 1446 req_set_path1 (req, pathname);
1553 req->ptr1 = SvPVbyte_nolen (newpath);
1554 1447
1555 REQ_SEND; 1448 REQ_SEND;
1556} 1449}
1557 1450
1558void 1451void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1452aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1560 SV * pathname 1453 ALIAS:
1561 SV * callback 1454 aio_mtouch = EIO_MTOUCH
1562 UV mode 1455 aio_msync = EIO_MSYNC
1563 UV dev 1456 PPCODE:
1457{
1458 STRLEN svlen;
1459 char *svptr = SvPVbyte (data, svlen);
1460 UV len = SvUV (length);
1461
1462 if (offset < 0)
1463 offset += svlen;
1464
1465 if (offset < 0 || offset > svlen)
1466 croak ("offset outside of scalar");
1467
1468 if (!SvOK (length) || len + offset > svlen)
1469 len = svlen - offset;
1470
1471 {
1472 dREQ;
1473
1474 req->type = ix;
1475 req->sv2 = SvREFCNT_inc (data);
1476 req->ptr2 = (char *)svptr + offset;
1477 req->size = len;
1478 req->int1 = flags;
1479
1480 REQ_SEND;
1481 }
1482}
1483
1484void
1485aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1486 PPCODE:
1487{
1488 STRLEN svlen;
1489 char *svptr = SvPVbyte (data, svlen);
1490 UV len = SvUV (length);
1491
1492 if (offset < 0)
1493 offset += svlen;
1494
1495 if (offset < 0 || offset > svlen)
1496 croak ("offset outside of scalar");
1497
1498 if (!SvOK (length) || len + offset > svlen)
1499 len = svlen - offset;
1500
1501 {
1502 dREQ;
1503
1504 req->type = EIO_MLOCK;
1505 req->sv2 = SvREFCNT_inc (data);
1506 req->ptr2 = (char *)svptr + offset;
1507 req->size = len;
1508
1509 REQ_SEND;
1510 }
1511}
1512
1513void
1514aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1515 PPCODE:
1516{
1517 dREQ;
1518
1519 req->type = EIO_MLOCKALL;
1520 req->int1 = flags;
1521
1522 REQ_SEND;
1523}
1524
1525void
1526aio_busy (double delay, SV *callback=&PL_sv_undef)
1564 PPCODE: 1527 PPCODE:
1565{ 1528{
1566 dREQ; 1529 dREQ;
1567 1530
1568 req->type = REQ_MKNOD; 1531 req->type = EIO_BUSY;
1569 req->sv1 = newSVsv (pathname); 1532 req->nv1 = delay < 0. ? 0. : delay;
1570 req->ptr1 = SvPVbyte_nolen (pathname); 1533
1571 req->mode = (mode_t)mode;
1572 req->offs = dev;
1573
1574 REQ_SEND; 1534 REQ_SEND;
1575} 1535}
1576 1536
1577void 1537void
1578aio_busy (delay,callback=&PL_sv_undef) 1538aio_group (SV *callback=&PL_sv_undef)
1579 double delay 1539 PPCODE:
1580 SV * callback
1581 PPCODE:
1582{ 1540{
1583 dREQ; 1541 dREQ;
1584 1542
1585 req->type = REQ_BUSY; 1543 req->type = EIO_GROUP;
1586 req->int1 = delay < 0. ? 0 : delay;
1587 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1588 1544
1589 REQ_SEND; 1545 req_submit (req);
1546 XPUSHs (req_sv (req, aio_grp_stash));
1590} 1547}
1591 1548
1592void 1549void
1593aio_group (callback=&PL_sv_undef) 1550aio_nop (SV *callback=&PL_sv_undef)
1594 SV * callback 1551 ALIAS:
1595 PROTOTYPE: ;$ 1552 aio_nop = EIO_NOP
1596 PPCODE: 1553 aio_sync = EIO_SYNC
1554 PPCODE:
1597{ 1555{
1598 dREQ; 1556 dREQ;
1599 1557
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; 1558 req->type = ix;
1614 1559
1615 REQ_SEND; 1560 REQ_SEND;
1616} 1561}
1617 1562
1618int 1563int
1619aioreq_pri (int pri = 0) 1564aioreq_pri (int pri = 0)
1620 PROTOTYPE: ;$
1621 CODE: 1565 CODE:
1622 RETVAL = next_pri - PRI_BIAS; 1566 RETVAL = next_pri;
1623 if (items > 0) 1567 if (items > 0)
1624 { 1568 {
1625 if (pri < PRI_MIN) pri = PRI_MIN; 1569 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1626 if (pri > PRI_MAX) pri = PRI_MAX; 1570 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1627 next_pri = pri + PRI_BIAS; 1571 next_pri = pri;
1628 } 1572 }
1629 OUTPUT: 1573 OUTPUT:
1630 RETVAL 1574 RETVAL
1631 1575
1632void 1576void
1633aioreq_nice (int nice = 0) 1577aioreq_nice (int nice = 0)
1634 CODE: 1578 CODE:
1635 nice = next_pri - nice; 1579 nice = next_pri - nice;
1636 if (nice < PRI_MIN) nice = PRI_MIN; 1580 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1637 if (nice > PRI_MAX) nice = PRI_MAX; 1581 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1638 next_pri = nice + PRI_BIAS; 1582 next_pri = nice;
1639 1583
1640void 1584void
1641flush () 1585flush ()
1642 PROTOTYPE:
1643 CODE: 1586 CODE:
1644 while (nreqs) 1587 while (eio_nreqs ())
1645 { 1588 {
1646 poll_wait (); 1589 poll_wait ();
1647 poll_cb (0); 1590 poll_cb ();
1648 } 1591 }
1649 1592
1650void
1651poll()
1652 PROTOTYPE:
1653 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait ();
1657 poll_cb (0);
1658 }
1659
1660int 1593int
1661poll_fileno() 1594poll ()
1662 PROTOTYPE:
1663 CODE: 1595 CODE:
1664 RETVAL = respipe [0]; 1596 poll_wait ();
1665 OUTPUT:
1666 RETVAL
1667
1668int
1669poll_cb(...)
1670 PROTOTYPE:
1671 CODE:
1672 RETVAL = poll_cb (); 1597 RETVAL = poll_cb ();
1673 OUTPUT: 1598 OUTPUT:
1674 RETVAL 1599 RETVAL
1675 1600
1676void
1677poll_wait()
1678 PROTOTYPE:
1679 CODE:
1680 if (nreqs)
1681 poll_wait ();
1682
1683int 1601int
1684nreqs() 1602poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 1603 CODE:
1687 RETVAL = nreqs; 1604 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 1605 OUTPUT:
1689 RETVAL 1606 RETVAL
1690 1607
1691int 1608int
1692nready() 1609poll_cb (...)
1693 PROTOTYPE: 1610 PROTOTYPE:
1694 CODE: 1611 CODE:
1695 RETVAL = get_nready (); 1612 RETVAL = poll_cb ();
1696 OUTPUT: 1613 OUTPUT:
1697 RETVAL 1614 RETVAL
1698 1615
1616void
1617poll_wait ()
1618 CODE:
1619 poll_wait ();
1620
1699int 1621int
1700npending() 1622nreqs ()
1701 PROTOTYPE:
1702 CODE: 1623 CODE:
1703 RETVAL = get_npending (); 1624 RETVAL = eio_nreqs ();
1704 OUTPUT: 1625 OUTPUT:
1705 RETVAL 1626 RETVAL
1706 1627
1707int 1628int
1708nthreads() 1629nready ()
1709 PROTOTYPE:
1710 CODE: 1630 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1631 RETVAL = eio_nready ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1632 OUTPUT:
1715 RETVAL 1633 RETVAL
1716 1634
1635int
1636npending ()
1637 CODE:
1638 RETVAL = eio_npending ();
1639 OUTPUT:
1640 RETVAL
1641
1642int
1643nthreads ()
1644 CODE:
1645 RETVAL = eio_nthreads ();
1646 OUTPUT:
1647 RETVAL
1648
1649int
1650fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1651 CODE:
1652 RETVAL = posix_fadvise (fh, offset, length, advice);
1653 OUTPUT:
1654 RETVAL
1655
1656IV
1657sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1658 CODE:
1659 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1660 OUTPUT:
1661 RETVAL
1662
1663void
1664mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1665 PPCODE:
1666 sv_unmagic (scalar, MMAP_MAGIC);
1667{
1668 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1669 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1670 if (addr == (void *)-1)
1671 XSRETURN_NO;
1672
1673 sv_force_normal (scalar);
1674
1675 /* we store the length in mg_obj, as namlen is I32 :/ */
1676 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1677 ->mg_obj = (SV *)length;
1678
1679 SvUPGRADE (scalar, SVt_PV); /* nop... */
1680
1681 if (!(prot & PROT_WRITE))
1682 SvREADONLY_on (scalar);
1683
1684 if (SvLEN (scalar))
1685 Safefree (SvPVX (scalar));
1686
1687 SvPVX (scalar) = (char *)addr;
1688 SvCUR_set (scalar, length);
1689 SvLEN_set (scalar, 0);
1690 SvPOK_only (scalar);
1691
1692 XSRETURN_YES;
1693}
1694
1695void
1696munmap (SV *scalar)
1697 CODE:
1698 sv_unmagic (scalar, MMAP_MAGIC);
1699
1700int
1701madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1702 ALIAS:
1703 mprotect = 1
1704 CODE:
1705{
1706 STRLEN svlen;
1707 void *addr = SvPVbyte (scalar, svlen);
1708 size_t len = SvUV (length);
1709
1710 if (offset < 0)
1711 offset += svlen;
1712
1713 if (offset < 0 || offset > svlen)
1714 croak ("offset outside of scalar");
1715
1716 if (!SvOK (length) || len + offset > svlen)
1717 len = svlen - offset;
1718
1719 addr = (void *)(((intptr_t)addr) + offset);
1720 eio_page_align (&addr, &len);
1721
1722 switch (ix)
1723 {
1724 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1725 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1726 }
1727}
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1733 CODE:
1734{
1735 STRLEN svlen;
1736 void *addr = SvPVbyte (scalar, svlen);
1737 size_t len = SvUV (length);
1738
1739 if (offset < 0)
1740 offset += svlen;
1741
1742 if (offset < 0 || offset > svlen)
1743 croak ("offset outside of scalar");
1744
1745 if (!SvOK (length) || len + offset > svlen)
1746 len = svlen - offset;
1747
1748 addr = (void *)(((intptr_t)addr) + offset);
1749 eio_page_align (&addr, &len);
1750#if _POSIX_MEMLOCK_RANGE
1751 RETVAL = munlock (addr, len);
1752#else
1753 RETVAL = ((errno = ENOSYS), -1);
1754#endif
1755}
1756 OUTPUT:
1757 RETVAL
1758
1759int
1760munlockall ()
1761 CODE:
1762#if _POSIX_MEMLOCK
1763 munlockall ();
1764#else
1765 RETVAL = -1;
1766 errno = ENOSYS;
1767#endif
1768 OUTPUT:
1769 RETVAL
1770
1771void _on_next_submit (SV *cb)
1772 CODE:
1773 SvREFCNT_dec (on_next_submit);
1774 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1775
1717PROTOTYPES: DISABLE 1776PROTOTYPES: DISABLE
1718 1777
1778MODULE = IO::AIO PACKAGE = IO::AIO::WD
1779
1780BOOT:
1781{
1782 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1783 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1784}
1785
1786void
1787DESTROY (SV *self)
1788 CODE:
1789{
1790 aio_wd wd = SvAIO_WD (self);
1791#if HAVE_AT
1792 SV *callback = &PL_sv_undef;
1793 dREQ; /* clobbers next_pri :/ */
1794 req->type = EIO_WD_CLOSE;
1795 req->wd = wd;
1796 REQ_SEND;
1797#else
1798 eio_wd_close_sync (wd);
1799#endif
1800}
1801
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1802MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 1803
1721void 1804void
1722cancel (aio_req_ornot req) 1805cancel (aio_req_ornot req)
1723 CODE: 1806 CODE:
1724 req_cancel (req); 1807 eio_cancel (req);
1725 1808
1726void 1809void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1810cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1728 CODE: 1811 PPCODE:
1812{
1813 if (GIMME_V != G_VOID)
1814 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1815
1816 if (items > 1)
1817 {
1818 SV *cb_cv =get_cb (callback);
1819
1729 SvREFCNT_dec (req->callback); 1820 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 1821 req->callback = SvREFCNT_inc (cb_cv);
1822 }
1823}
1731 1824
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1825MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 1826
1734void 1827void
1735add (aio_req grp, ...) 1828add (aio_req grp, ...)
1736 PPCODE: 1829 PPCODE:
1737{ 1830{
1738 int i; 1831 int i;
1739 aio_req req;
1740 1832
1741 if (grp->int1 == 2) 1833 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1834 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 1835
1744 for (i = 1; i < items; ++i ) 1836 for (i = 1; i < items; ++i )
1745 { 1837 {
1838 aio_req req;
1839
1746 if (GIMME_V != G_VOID) 1840 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1841 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 1842
1749 req = SvAIO_REQ (ST (i)); 1843 req = SvAIO_REQ (ST (i));
1750 1844
1751 if (req) 1845 if (req)
1752 { 1846 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 } 1847 }
1765} 1848}
1766 1849
1767void 1850void
1768cancel_subs (aio_req_ornot req) 1851cancel_subs (aio_req_ornot req)
… …
1777 AV *av; 1860 AV *av;
1778 1861
1779 grp->errorno = errno; 1862 grp->errorno = errno;
1780 1863
1781 av = newAV (); 1864 av = newAV ();
1865 av_extend (av, items - 1);
1782 1866
1783 for (i = 1; i < items; ++i ) 1867 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 1868 av_push (av, newSVsv (ST (i)));
1785 1869
1786 SvREFCNT_dec (grp->sv1); 1870 SvREFCNT_dec (grp->sv1);
… …
1793 grp->errorno = errorno; 1877 grp->errorno = errorno;
1794 1878
1795void 1879void
1796limit (aio_req grp, int limit) 1880limit (aio_req grp, int limit)
1797 CODE: 1881 CODE:
1798 grp->int2 = limit; 1882 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 1883
1801void 1884void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 1885feed (aio_req grp, SV *callback=&PL_sv_undef)
1803 CODE: 1886 CODE:
1804{ 1887{
1805 SvREFCNT_dec (grp->sv2); 1888 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 1889 grp->sv2 = newSVsv (callback);
1890 grp->feed = aio_grp_feed;
1807 1891
1808 if (grp->int2 <= 0) 1892 if (grp->int2 <= 0)
1809 grp->int2 = 2; 1893 grp->int2 = 2;
1810 1894
1811 aio_grp_feed (grp); 1895 eio_grp_limit (grp, grp->int2);
1812} 1896}
1813 1897

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines