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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.90 by root, Tue Oct 31 00:32:19 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
92typedef SV SV8; /* byte-sv, used for argument-checking */
93 328
94enum { 329enum {
95 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
96 REQ_OPEN, REQ_CLOSE,
97 REQ_READ, REQ_WRITE, REQ_READAHEAD,
98 REQ_SENDFILE,
99 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
100 REQ_FSYNC, REQ_FDATASYNC,
101 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
102 REQ_MKNOD, REQ_READDIR,
103 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
104 REQ_GROUP, REQ_NOP,
105 REQ_BUSY,
106}; 331};
107 332
108#define AIO_REQ_KLASS "IO::AIO::REQ"
109#define AIO_GRP_KLASS "IO::AIO::GRP"
110
111typedef struct aio_cb
112{
113 struct aio_cb *volatile next;
114
115 SV *callback, *fh;
116 SV *sv1, *sv2;
117 void *ptr1, *ptr2;
118 off_t offs;
119 size_t size;
120 ssize_t result;
121
122 STRLEN stroffset;
123 int type;
124 int int1, int2;
125 int errorno;
126 mode_t mode; /* open */
127
128 unsigned char flags;
129 unsigned char pri;
130
131 SV *self; /* the perl counterpart of this request, if any */
132 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
133} aio_cb;
134
135enum {
136 FLAG_CANCELLED = 0x01, /* request was cancelled */
137 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
138 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
139};
140
141typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
142typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
143 336
144enum { 337static SV *on_next_submit;
145 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
146 PRI_MAX = 4, 339static int max_outstanding;
147 340
148 DEFAULT_PRI = 0, 341static s_epipe respipe;
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152 342
153#define AIO_TICKS ((1000000 + 1023) >> 10)
154
155static unsigned int max_poll_time = 0;
156static unsigned int max_poll_reqs = 0;
157
158/* calculcate time difference in ~1/AIO_TICKS of a second */
159static int tvdiff (struct timeval *tv1, struct timeval *tv2)
160{
161 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
162 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
170# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
171#else
172# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
173#endif
174
175#define LOCK(mutex) pthread_mutex_lock (&(mutex))
176#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
177
178/* worker threads management */
179static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
180
181typedef struct worker {
182 /* locked by wrklock */
183 struct worker *prev, *next;
184
185 pthread_t tid;
186
187 /* locked by reslock, reqlock or wrklock */
188 aio_req req; /* currently processed request */
189 void *dbuf;
190 DIR *dirp;
191} worker;
192
193static worker wrk_first = { &wrk_first, &wrk_first, 0 };
194
195static void worker_clear (worker *wrk)
196{
197 if (wrk->dirp)
198 {
199 closedir (wrk->dirp);
200 wrk->dirp = 0;
201 }
202
203 if (wrk->dbuf)
204 {
205 free (wrk->dbuf);
206 wrk->dbuf = 0;
207 }
208}
209
210static void worker_free (worker *wrk)
211{
212 wrk->next->prev = wrk->prev;
213 wrk->prev->next = wrk->next;
214
215 free (wrk);
216}
217
218static volatile unsigned int nreqs, nready, npending;
219static volatile unsigned int max_idle = 4;
220static volatile unsigned int max_outstanding = 0xffffffff;
221static int respipe [2];
222
223static pthread_mutex_t reslock = AIO_MUTEX_INIT;
224static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
225static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
226
227#if WORDACCESS_UNSAFE
228
229static unsigned int get_nready ()
230{
231 unsigned int retval;
232
233 LOCK (reqlock);
234 retval = nready;
235 UNLOCK (reqlock);
236
237 return retval;
238}
239
240static unsigned int get_npending ()
241{
242 unsigned int retval;
243
244 LOCK (reslock);
245 retval = npending;
246 UNLOCK (reslock);
247
248 return retval;
249}
250
251static unsigned int get_nthreads ()
252{
253 unsigned int retval;
254
255 LOCK (wrklock);
256 retval = started;
257 UNLOCK (wrklock);
258
259 return retval;
260}
261
262#else
263
264# define get_nready() nready
265# define get_npending() npending
266# define get_nthreads() started
267
268#endif
269
270/*
271 * a somewhat faster data structure might be nice, but
272 * with 8 priorities this actually needs <20 insns
273 * per shift, the most expensive operation.
274 */
275typedef struct {
276 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
277 int size;
278} reqq;
279
280static reqq req_queue;
281static reqq res_queue;
282
283int reqq_push (reqq *q, aio_req req)
284{
285 int pri = req->pri;
286 req->next = 0;
287
288 if (q->qe[pri])
289 {
290 q->qe[pri]->next = req;
291 q->qe[pri] = req;
292 }
293 else
294 q->qe[pri] = q->qs[pri] = req;
295
296 return q->size++;
297}
298
299aio_req reqq_shift (reqq *q)
300{
301 int pri;
302
303 if (!q->size)
304 return 0;
305
306 --q->size;
307
308 for (pri = NUM_PRI; pri--; )
309 {
310 aio_req req = q->qs[pri];
311
312 if (req)
313 {
314 if (!(q->qs[pri] = req->next))
315 q->qe[pri] = 0;
316
317 return req;
318 }
319 }
320
321 abort ();
322}
323
324static int poll_cb ();
325static void req_invoke (aio_req req);
326static void req_free (aio_req req); 343static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
328 345
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
329/* must be called at most once */ 360/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
331{ 363{
332 if (!req->self) 364 if (!req->self)
333 { 365 {
334 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 368 }
337 369
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
339} 371}
340 372
341static 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)
342{ 381{
343 MAGIC *mg; 382 MAGIC *mg;
344 383
345 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")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 388 croak ("object of class IO::AIO::REQ expected");
347 389
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 391
350 return mg ? (aio_req)mg->mg_ptr : 0; 392 return mg ? (aio_req)mg->mg_ptr : 0;
351} 393}
352 394
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
353static void aio_grp_feed (aio_req grp) 407aio_grp_feed (aio_req grp)
354{ 408{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 409 if (grp->sv2 && SvOK (grp->sv2))
356 { 410 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 411 dSP;
362 412
363 ENTER; 413 ENTER;
364 SAVETMPS; 414 SAVETMPS;
365 PUSHMARK (SP); 415 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 417 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 419 SPAGAIN;
370 FREETMPS; 420 FREETMPS;
371 LEAVE; 421 LEAVE;
372 }
373
374 /* stop if no progress has been made */
375 if (old_len == grp->size)
376 {
377 SvREFCNT_dec (grp->sv2);
378 grp->sv2 = 0;
379 break;
380 }
381 } 422 }
382} 423}
383 424
384static void aio_grp_dec (aio_req grp) 425static void
426req_submit (eio_req *req)
385{ 427{
386 --grp->size; 428 eio_submit (req);
387 429
388 /* call feeder, if applicable */ 430 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 431 {
394 req_invoke (grp); 432 dSP;
395 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);
396 } 440 }
397} 441}
398 442
443static int
399static void req_invoke (aio_req req) 444req_invoke (eio_req *req)
400{ 445{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 446 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 447 SvREADONLY_off (req->sv2);
405 448
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 449 if (!EIO_CANCELLED (req) && req->callback)
407 { 450 {
451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
454
408 ENTER; 455 ENTER;
409 SAVETMPS; 456 SAVETMPS;
410 PUSHMARK (SP); 457 PUSHMARK (SP);
411 EXTEND (SP, 1); 458 EXTEND (SP, 1);
412 459
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
413 switch (req->type) 473 switch (req->type)
414 { 474 {
475 case EIO_WD_OPEN:
476 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
415 case REQ_READDIR: 479 case EIO_READDIR:
416 { 480 {
417 SV *rv = &PL_sv_undef; 481 SV *rv = &PL_sv_undef;
418 482
419 if (req->result >= 0) 483 if (req->result >= 0)
420 { 484 {
421 int i; 485 int i;
422 char *buf = req->ptr2; 486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 488 AV *av = newAV ();
424 489
425 av_extend (av, req->result - 1); 490 av_extend (av, req->result - 1);
426 491
427 for (i = 0; i < req->result; ++i) 492 for (i = 0; i < req->result; ++i)
428 { 493 {
429 SV *sv = newSVpv (buf, 0); 494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 497
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
431 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);
432 buf += SvCUR (sv) + 1; 526 names += SvCUR (name) + 1;
527 }
433 } 528 }
434 529
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 530 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 531 }
437 532
438 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))));
439 } 537 }
440 break; 538 break;
441 539
442 case REQ_OPEN: 540 case EIO_OPEN:
443 { 541 {
444 /* convert fd to fh */ 542 /* convert fd to fh */
445 SV *fh; 543 SV *fh = &PL_sv_undef;
446 544
447 PUSHs (sv_2mortal (newSViv (req->result))); 545 if (req->result >= 0)
448 PUTBACK; 546 {
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 547 GV *gv = (GV *)sv_newmortal ();
450 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);
451 554
452 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 );
453 562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
454 PUSHMARK (SP); 567 PUSHs (fh);
455 XPUSHs (sv_2mortal (fh));
456 } 568 }
457 break; 569 break;
458 570
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
459 case REQ_GROUP: 603 case EIO_GROUP:
460 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
461 605
462 if (req->sv1) 606 if (req->sv1)
463 { 607 {
464 int i; 608 int i;
… …
468 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
469 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
470 } 614 }
471 break; 615 break;
472 616
473 case REQ_NOP: 617 case EIO_NOP:
474 case REQ_BUSY: 618 case EIO_BUSY:
475 break; 619 break;
476 620
477 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
478 if (req->result > 0) 623 if (req->result > 0)
479 { 624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480 SvCUR_set (req->sv1, req->result);
481 *SvEND (req->sv1) = 0;
482 PUSHs (req->sv1);
483 }
484 break; 625 break;
485 626
486 case REQ_STAT: 627 case EIO_STAT:
487 case REQ_LSTAT: 628 case EIO_LSTAT:
488 case REQ_FSTAT: 629 case EIO_FSTAT:
489 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
490 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
491 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
492 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
493 break; 637 break;
494 638
495 case REQ_READ: 639 case EIO_READ:
640 {
496 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));
497 *SvEND (req->sv1) = 0; 642 *SvEND (req->sv2) = 0;
498 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
499 break; 647 break;
500 648
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
501 default: 654 default:
502 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
503 break; 656 break;
504 } 657 }
505 658
506 errno = req->errorno; 659 errno = req->errorno;
507 660
508 PUTBACK; 661 PUTBACK;
509 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
510 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;
511 669
512 FREETMPS; 670 FREETMPS;
513 LEAVE; 671 LEAVE;
672
673 PUTBACK;
514 } 674 }
515 675
516 if (req->grp) 676 return !!SvTRUE (ERRSV);
517 {
518 aio_req grp = req->grp;
519
520 /* unlink request */
521 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
522 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
523
524 if (grp->grp_first == req)
525 grp->grp_first = req->grp_next;
526
527 aio_grp_dec (grp);
528 }
529
530 if (SvTRUE (ERRSV))
531 {
532 req_free (req);
533 croak (0);
534 }
535} 677}
536 678
537static void req_free (aio_req req) 679static void
680req_destroy (aio_req req)
538{ 681{
539 if (req->self) 682 if (req->self)
540 { 683 {
541 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
542 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
543 } 686 }
544 687
545 SvREFCNT_dec (req->fh);
546 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
547 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
548 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
549 693
550 if (req->flags & FLAG_PTR2_FREE)
551 free (req->ptr2);
552
553 Safefree (req); 694 Safefree (req);
554} 695}
555 696
697static void
556static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
557{ 699{
558 aio_req sub;
559
560 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
561 return; 701 return;
562 702
563 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
564 grp->sv2 = 0; 704 grp->sv2 = 0;
565 705
566 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
567 req_cancel (sub);
568} 707}
569 708
570static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
571{ 711{
572 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
573 713 croak ("IO::AIO: unable to initialize result pipe");
574 req_cancel_subs (req);
575} 714}
576 715
577static void *aio_proc(void *arg); 716static void
578 717poll_wait (void)
579static void start_thread (void)
580{ 718{
581 sigset_t fullsigset, oldsigset;
582 pthread_attr_t attr;
583
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 pthread_attr_init (&attr);
590 pthread_attr_setstacksize (&attr, STACKSIZE);
591 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592#ifdef PTHREAD_SCOPE_PROCESS
593 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594#endif
595
596 sigfillset (&fullsigset);
597
598 LOCK (wrklock);
599 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600
601 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
602 {
603 wrk->prev = &wrk_first;
604 wrk->next = wrk_first.next;
605 wrk_first.next->prev = wrk;
606 wrk_first.next = wrk;
607 ++started;
608 }
609 else
610 free (wrk);
611
612 sigprocmask (SIG_SETMASK, &oldsigset, 0);
613 UNLOCK (wrklock);
614}
615
616static void maybe_start_thread ()
617{
618 if (get_nthreads () >= wanted)
619 return;
620
621 /* todo: maybe use idle here, but might be less exact */
622 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
623 return;
624
625 start_thread ();
626}
627
628static void req_send (aio_req req)
629{
630 ++nreqs;
631
632 LOCK (reqlock);
633 ++nready;
634 reqq_push (&req_queue, req);
635 pthread_cond_signal (&reqwait);
636 UNLOCK (reqlock);
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 pthread_cond_signal (&reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 719 while (eio_nreqs ())
687 { 720 {
688 int size; 721 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 722
723 X_LOCK (reslock);
690 size = res_queue.size; 724 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 725 X_UNLOCK (reslock);
692 726
693 if (size) 727 if (size)
694 return; 728 return;
695 729
696 maybe_start_thread (); 730 etp_maybe_start_thread ();
697 731
698 FD_ZERO(&rfd); 732 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 733 }
703} 734}
704 735
705static int poll_cb () 736static int
737poll_cb (void)
706{ 738{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 for (;;) 739 for (;;)
718 { 740 {
719 for (;;) 741 int res = eio_poll ();
720 {
721 maybe_start_thread ();
722 742
723 LOCK (reslock); 743 if (res > 0)
724 req = reqq_shift (&res_queue);
725
726 if (req)
727 {
728 --npending;
729
730 if (!res_queue.size)
731 {
732 /* read any signals sent by the worker threads */
733 char buf [32];
734 while (read (respipe [0], buf, 32) == 32)
735 ;
736 }
737 }
738
739 UNLOCK (reslock);
740
741 if (!req)
742 break;
743
744 --nreqs;
745
746 if (req->type == REQ_GROUP && req->size)
747 {
748 req->int1 = 1; /* mark request as delayed */
749 continue;
750 }
751 else
752 {
753 req_invoke (req);
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 }
771
772 if (nreqs <= max_outstanding)
773 break; 744 croak (0);
745
746 if (!max_outstanding || max_outstanding > eio_nreqs ())
747 return res;
774 748
775 poll_wait (); 749 poll_wait ();
776
777 ++maxreqs;
778 } 750 }
779
780 return count;
781} 751}
782 752
783static void create_pipe () 753static void ecb_cold
754reinit (void)
784{ 755{
785 if (pipe (respipe)) 756 create_respipe ();
786 croak ("unable to initialize result pipe");
787 757
788 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 758 if (eio_init (want_poll, done_poll) < 0)
789 croak ("cannot set result pipe to nonblocking mode"); 759 croak ("IO::AIO: unable to initialise eio library");
790
791 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792 croak ("cannot set result pipe to nonblocking mode");
793} 760}
794 761
795/*****************************************************************************/ 762/*****************************************************************************/
796/* work around various missing functions */
797 763
798#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
799# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
800# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
801
802/*
803 * make our pread/pwrite safe against themselves, but not against
804 * normal read/write by using a mutex. slows down execution a lot,
805 * but that's your problem, not mine.
806 */
807static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
808
809static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810{
811 ssize_t res;
812 off_t ooffset;
813
814 LOCK (preadwritelock);
815 ooffset = lseek (fd, 0, SEEK_CUR);
816 lseek (fd, offset, SEEK_SET);
817 res = read (fd, buf, count);
818 lseek (fd, ooffset, SEEK_SET);
819 UNLOCK (preadwritelock);
820
821 return res;
822}
823
824static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
825{
826 ssize_t res;
827 off_t ooffset;
828
829 LOCK (preadwritelock);
830 ooffset = lseek (fd, 0, SEEK_CUR);
831 lseek (fd, offset, SEEK_SET);
832 res = write (fd, buf, count);
833 lseek (fd, offset, SEEK_SET);
834 UNLOCK (preadwritelock);
835
836 return res;
837}
838#endif
839
840#if !HAVE_FDATASYNC
841# define fdatasync fsync
842#endif
843
844#if !HAVE_READAHEAD
845# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846
847static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
848{
849 dBUF;
850
851 while (count > 0)
852 {
853 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
854
855 pread (fd, aio_buf, len, offset);
856 offset += len;
857 count -= len;
858 }
859
860 errno = 0;
861}
862
863#endif
864
865#if !HAVE_READDIR_R
866# define readdir_r aio_readdir_r
867
868static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
869
870static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
871{
872 struct dirent *e;
873 int errorno;
874
875 LOCK (readdirlock);
876
877 e = readdir (dirp);
878 errorno = errno;
879
880 if (e)
881 {
882 *res = ent;
883 strcpy (ent->d_name, e->d_name);
884 }
885 else
886 *res = 0;
887
888 UNLOCK (readdirlock);
889
890 errno = errorno;
891 return e ? 0 : -1;
892}
893#endif
894
895/* sendfile always needs emulation */
896static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
897{
898 ssize_t res;
899
900 if (!count)
901 return 0;
902
903#if HAVE_SENDFILE
904# if __linux
905 res = sendfile (ofd, ifd, &offset, count);
906
907# elif __freebsd
908 /*
909 * Of course, the freebsd sendfile is a dire hack with no thoughts
910 * wasted on making it similar to other I/O functions.
911 */
912 {
913 off_t sbytes;
914 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
915
916 if (res < 0 && sbytes)
917 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
918 res = sbytes;
919 }
920
921# elif __hpux
922 res = sendfile (ofd, ifd, offset, count, 0, 0);
923
924# elif __solaris
925 {
926 struct sendfilevec vec;
927 size_t sbytes;
928
929 vec.sfv_fd = ifd;
930 vec.sfv_flag = 0;
931 vec.sfv_off = offset;
932 vec.sfv_len = count;
933
934 res = sendfilev (ofd, &vec, 1, &sbytes);
935
936 if (res < 0 && sbytes)
937 res = sbytes;
938 }
939
940# endif 767#endif
941#else
942 res = -1;
943 errno = ENOSYS;
944#endif
945 768
946 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
947 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
948#if __solaris 771# define PROT_NONE 0
949 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
950#endif 776#endif
951 )
952 )
953 {
954 /* emulate sendfile. this is a major pain in the ass */
955 dBUF;
956 777
957 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
958 779
959 while (count) 780static int ecb_cold
960 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
961 ssize_t cnt; 782{
962 783 int old_errno = errno;
963 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;
964 786
965 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
966 {
967 if (cnt && !res) res = -1;
968 break;
969 }
970 788
971 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
972 790
973 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
974 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
975 if (cnt && !res) res = -1;
976 break;
977 }
978 793
979 offset += cnt; 794 SvCUR_set (sv, 0);
980 res += cnt; 795 SvPVX (sv) = 0;
981 count -= cnt; 796 SvOK_off (sv);
982 }
983 }
984 797
985 return res; 798 return 0;
986} 799}
987 800
988/* read a full directory */ 801static MGVTBL mmap_vtbl = {
989static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
990{ 803};
991 DIR *dirp;
992 union
993 {
994 struct dirent d;
995 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
996 } *u;
997 struct dirent *entp;
998 char *name, *names;
999 int memlen = 4096;
1000 int memofs = 0;
1001 int res = 0;
1002 int errorno;
1003
1004 LOCK (wrklock);
1005 self->dirp = dirp = opendir (req->ptr1);
1006 self->dbuf = u = malloc (sizeof (*u));
1007 req->flags |= FLAG_PTR2_FREE;
1008 req->ptr2 = names = malloc (memlen);
1009 UNLOCK (wrklock);
1010
1011 if (dirp && u && names)
1012 for (;;)
1013 {
1014 errno = 0;
1015 readdir_r (dirp, &u->d, &entp);
1016
1017 if (!entp)
1018 break;
1019
1020 name = entp->d_name;
1021
1022 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1023 {
1024 int len = strlen (name) + 1;
1025
1026 res++;
1027
1028 while (memofs + len > memlen)
1029 {
1030 memlen *= 2;
1031 LOCK (wrklock);
1032 req->ptr2 = names = realloc (names, memlen);
1033 UNLOCK (wrklock);
1034
1035 if (!names)
1036 break;
1037 }
1038
1039 memcpy (names + memofs, name, len);
1040 memofs += len;
1041 }
1042 }
1043
1044 if (errno)
1045 res = -1;
1046
1047 req->result = res;
1048}
1049 804
1050/*****************************************************************************/ 805/*****************************************************************************/
1051 806
1052static void *aio_proc (void *thr_arg) 807static SV *
808get_cb (SV *cb_sv)
1053{ 809{
1054 aio_req req; 810 SvGETMAGIC (cb_sv);
1055 struct timespec ts; 811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1056 worker *self = (worker *)thr_arg;
1057
1058 /* try to distribute timeouts somewhat evenly */
1059 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1060 * (1000000000UL / 1024UL);
1061
1062 for (;;)
1063 {
1064 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065
1066 LOCK (reqlock);
1067
1068 for (;;)
1069 {
1070 self->req = req = reqq_shift (&req_queue);
1071
1072 if (req)
1073 break;
1074
1075 ++idle;
1076
1077 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1078 == ETIMEDOUT)
1079 {
1080 if (idle > max_idle)
1081 {
1082 --idle;
1083 UNLOCK (reqlock);
1084 LOCK (wrklock);
1085 --started;
1086 UNLOCK (wrklock);
1087 goto quit;
1088 }
1089
1090 /* we are allowed to idle, so do so without any timeout */
1091 pthread_cond_wait (&reqwait, &reqlock);
1092 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093 }
1094
1095 --idle;
1096 }
1097
1098 --nready;
1099
1100 UNLOCK (reqlock);
1101
1102 errno = 0; /* strictly unnecessary */
1103
1104 if (!(req->flags & FLAG_CANCELLED))
1105 switch (req->type)
1106 {
1107 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1108 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1109
1110 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112
1113 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1116
1117 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118 case REQ_CLOSE: req->result = close (req->int1); break;
1119 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1121 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1126
1127 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128 case REQ_FSYNC: req->result = fsync (req->int1); break;
1129 case REQ_READDIR: scandir_ (req, self); break;
1130
1131 case REQ_BUSY:
1132 {
1133 struct timeval tv;
1134
1135 tv.tv_sec = req->int1;
1136 tv.tv_usec = req->int2;
1137
1138 req->result = select (0, 0, 0, 0, &tv);
1139 }
1140
1141 case REQ_GROUP:
1142 case REQ_NOP:
1143 break;
1144
1145 case REQ_QUIT:
1146 goto quit;
1147
1148 default:
1149 req->result = ENOSYS;
1150 break;
1151 }
1152
1153 req->errorno = errno;
1154
1155 LOCK (reslock);
1156
1157 ++npending;
1158
1159 if (!reqq_push (&res_queue, req))
1160 /* write a dummy byte to the pipe so fh becomes ready */
1161 write (respipe [1], &respipe, 1);
1162
1163 self->req = 0;
1164 worker_clear (self);
1165
1166 UNLOCK (reslock);
1167 }
1168
1169quit:
1170 LOCK (wrklock);
1171 worker_free (self);
1172 UNLOCK (wrklock);
1173
1174 return 0;
1175}
1176
1177/*****************************************************************************/
1178
1179static void atfork_prepare (void)
1180{
1181 LOCK (wrklock);
1182 LOCK (reqlock);
1183 LOCK (reslock);
1184#if !HAVE_PREADWRITE
1185 LOCK (preadwritelock);
1186#endif
1187#if !HAVE_READDIR_R
1188 LOCK (readdirlock);
1189#endif
1190}
1191
1192static void atfork_parent (void)
1193{
1194#if !HAVE_READDIR_R
1195 UNLOCK (readdirlock);
1196#endif
1197#if !HAVE_PREADWRITE
1198 UNLOCK (preadwritelock);
1199#endif
1200 UNLOCK (reslock);
1201 UNLOCK (reqlock);
1202 UNLOCK (wrklock);
1203}
1204
1205static void atfork_child (void)
1206{
1207 aio_req prv;
1208
1209 while (prv = reqq_shift (&req_queue))
1210 req_free (prv);
1211
1212 while (prv = reqq_shift (&res_queue))
1213 req_free (prv);
1214
1215 while (wrk_first.next != &wrk_first)
1216 {
1217 worker *wrk = wrk_first.next;
1218
1219 if (wrk->req)
1220 req_free (wrk->req);
1221
1222 worker_clear (wrk);
1223 worker_free (wrk);
1224 }
1225
1226 started = 0;
1227 idle = 0;
1228 nreqs = 0;
1229 nready = 0;
1230 npending = 0;
1231
1232 close (respipe [0]);
1233 close (respipe [1]);
1234 create_pipe ();
1235
1236 atfork_parent ();
1237} 812}
1238 813
1239#define dREQ \ 814#define dREQ \
815 SV *cb_cv; \
1240 aio_req req; \ 816 aio_req req; \
1241 int req_pri = next_pri; \ 817 int req_pri = next_pri; \
1242 next_pri = DEFAULT_PRI + PRI_BIAS; \ 818 next_pri = EIO_PRI_DEFAULT; \
1243 \ 819 \
1244 if (SvOK (callback) && !SvROK (callback)) \ 820 cb_cv = get_cb (callback); \
1245 croak ("callback must be undef or of reference type"); \
1246 \ 821 \
1247 Newz (0, req, 1, aio_cb); \ 822 Newz (0, req, 1, eio_req); \
1248 if (!req) \ 823 if (!req) \
1249 croak ("out of memory during aio_req allocation"); \ 824 croak ("out of memory during eio_req allocation"); \
1250 \ 825 \
1251 req->callback = newSVsv (callback); \ 826 req->callback = SvREFCNT_inc (cb_cv); \
1252 req->pri = req_pri 827 req->pri = req_pri
1253 828
1254#define REQ_SEND \ 829#define REQ_SEND \
830 PUTBACK; \
1255 req_send (req); \ 831 req_submit (req); \
832 SPAGAIN; \
1256 \ 833 \
1257 if (GIMME_V != G_VOID) \ 834 if (GIMME_V != G_VOID) \
1258 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 835 XPUSHs (req_sv (req, aio_req_stash));
1259 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
1260MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1261 895
1262PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1263 897
1264BOOT: 898BOOT:
1265{ 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
1266 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);
1267 1021
1268 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1022 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1269 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1023 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1270 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1273 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1274 1024
1275 create_pipe (); 1025 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1276 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1277}
1278 1026
1027 reinit ();
1028}
1029
1279void 1030void
1031reinit ()
1032 PROTOTYPE:
1033
1034void
1280max_poll_reqs (int nreqs) 1035max_poll_reqs (unsigned int nreqs)
1281 PROTOTYPE: $ 1036 PROTOTYPE: $
1282 CODE: 1037 CODE:
1283 max_poll_reqs = nreqs; 1038 eio_set_max_poll_reqs (nreqs);
1284 1039
1285void 1040void
1286max_poll_time (double nseconds) 1041max_poll_time (double nseconds)
1287 PROTOTYPE: $ 1042 PROTOTYPE: $
1288 CODE: 1043 CODE:
1289 max_poll_time = nseconds * AIO_TICKS; 1044 eio_set_max_poll_time (nseconds);
1290 1045
1291void 1046void
1292min_parallel (int nthreads) 1047min_parallel (unsigned int nthreads)
1293 PROTOTYPE: $
1294
1295void
1296max_parallel (int nthreads)
1297 PROTOTYPE: $
1298
1299void
1300max_idle (int nthreads)
1301 PROTOTYPE: $ 1048 PROTOTYPE: $
1302 CODE: 1049 CODE:
1303 set_max_idle (nthreads); 1050 eio_set_min_parallel (nthreads);
1304 1051
1305int 1052void
1306max_outstanding (int maxreqs) 1053max_parallel (unsigned int nthreads)
1307 PROTOTYPE: $ 1054 PROTOTYPE: $
1308 CODE: 1055 CODE:
1309 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:
1310 max_outstanding = maxreqs; 1074 max_outstanding = maxreqs;
1311 OUTPUT:
1312 RETVAL
1313 1075
1314void 1076void
1315aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1077aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1316 SV8 * pathname
1317 int flags
1318 int mode
1319 SV * callback
1320 PROTOTYPE: $$$;$
1321 PPCODE: 1078 PPCODE:
1322{ 1079{
1323 dREQ; 1080 dREQ;
1324 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
1325 req->type = REQ_OPEN; 1094 req->type = EIO_OPEN;
1326 req->sv1 = newSVsv (pathname); 1095 req_set_path1 (req, pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags; 1096 req->int1 = flags;
1329 req->mode = mode; 1097 req->int2 = mode;
1330 1098
1331 REQ_SEND; 1099 REQ_SEND;
1332} 1100}
1333 1101
1334void 1102void
1335aio_close (fh,callback=&PL_sv_undef) 1103aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1336 SV * fh
1337 SV * callback
1338 PROTOTYPE: $;$
1339 ALIAS: 1104 ALIAS:
1340 aio_close = REQ_CLOSE
1341 aio_fsync = REQ_FSYNC 1105 aio_fsync = EIO_FSYNC
1342 aio_fdatasync = REQ_FDATASYNC 1106 aio_fdatasync = EIO_FDATASYNC
1107 aio_syncfs = EIO_SYNCFS
1343 PPCODE: 1108 PPCODE:
1344{ 1109{
1110 int fd = s_fileno_croak (fh, 0);
1345 dREQ; 1111 dREQ;
1346 1112
1347 req->type = ix; 1113 req->type = ix;
1348 req->fh = newSVsv (fh); 1114 req->sv1 = newSVsv (fh);
1349 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1115 req->int1 = fd;
1350 1116
1351 REQ_SEND (req); 1117 REQ_SEND (req);
1352} 1118}
1353 1119
1354void 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
1355aio_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)
1356 SV * fh
1357 UV offset
1358 UV length
1359 SV8 * data
1360 UV dataoffset
1361 SV * callback
1362 ALIAS: 1190 ALIAS:
1363 aio_read = REQ_READ 1191 aio_read = EIO_READ
1364 aio_write = REQ_WRITE 1192 aio_write = EIO_WRITE
1365 PROTOTYPE: $$$$$;$
1366 PPCODE: 1193 PPCODE:
1367{ 1194{
1368 STRLEN svlen; 1195 STRLEN svlen;
1196 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1369 char *svptr = SvPVbyte (data, svlen); 1197 char *svptr = SvPVbyte (data, svlen);
1370 1198 UV len = SvUV (length);
1371 SvUPGRADE (data, SVt_PV);
1372 SvPOK_on (data);
1373 1199
1374 if (dataoffset < 0) 1200 if (dataoffset < 0)
1375 dataoffset += svlen; 1201 dataoffset += svlen;
1376 1202
1377 if (dataoffset < 0 || dataoffset > svlen) 1203 if (dataoffset < 0 || dataoffset > svlen)
1378 croak ("data offset outside of string"); 1204 croak ("dataoffset outside of data scalar");
1379 1205
1380 if (ix == REQ_WRITE) 1206 if (ix == EIO_WRITE)
1381 { 1207 {
1382 /* write: check length and adjust. */ 1208 /* write: check length and adjust. */
1383 if (length < 0 || length + dataoffset > svlen) 1209 if (!SvOK (length) || len + dataoffset > svlen)
1384 length = svlen - dataoffset; 1210 len = svlen - dataoffset;
1385 } 1211 }
1386 else 1212 else
1387 { 1213 {
1388 /* read: grow scalar as necessary */ 1214 /* read: check type and grow scalar as necessary */
1215 SvUPGRADE (data, SVt_PV);
1389 svptr = SvGROW (data, length + dataoffset); 1216 svptr = SvGROW (data, len + dataoffset + 1);
1390 } 1217 }
1391
1392 if (length < 0)
1393 croak ("length must not be negative");
1394 1218
1395 { 1219 {
1396 dREQ; 1220 dREQ;
1397 1221
1398 req->type = ix; 1222 req->type = ix;
1399 req->fh = newSVsv (fh); 1223 req->sv1 = newSVsv (fh);
1400 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1224 req->int1 = fd;
1401 : IoOFP (sv_2io (fh))); 1225 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1402 req->offs = offset;
1403 req->size = length; 1226 req->size = len;
1404 req->sv1 = SvREFCNT_inc (data); 1227 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr1 = (char *)svptr + dataoffset; 1228 req->ptr2 = (char *)svptr + dataoffset;
1406 req->stroffset = dataoffset; 1229 req->stroffset = dataoffset;
1407 1230
1408 if (!SvREADONLY (data)) 1231 if (!SvREADONLY (data))
1409 { 1232 {
1410 SvREADONLY_on (data); 1233 SvREADONLY_on (data);
1411 req->flags |= FLAG_SV1_RO_OFF; 1234 req->flags |= FLAG_SV2_RO_OFF;
1412 } 1235 }
1413 1236
1414 REQ_SEND; 1237 REQ_SEND;
1415 } 1238 }
1416} 1239}
1417 1240
1418void 1241void
1419aio_readlink (path,callback=&PL_sv_undef) 1242aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1420 SV8 * path 1243 ALIAS:
1421 SV * callback 1244 aio_readlink = EIO_READLINK
1422 PROTOTYPE: $$;$ 1245 aio_realpath = EIO_REALPATH
1423 PPCODE: 1246 PPCODE:
1424{ 1247{
1425 SV *data;
1426 dREQ; 1248 dREQ;
1427 1249
1428 data = newSV (NAME_MAX);
1429 SvPOK_on (data);
1430
1431 req->type = REQ_READLINK; 1250 req->type = ix;
1432 req->fh = newSVsv (path); 1251 req_set_path1 (req, pathname);
1433 req->ptr2 = SvPVbyte_nolen (req->fh);
1434 req->sv1 = data;
1435 req->ptr1 = SvPVbyte_nolen (data);
1436 1252
1437 REQ_SEND; 1253 REQ_SEND;
1438} 1254}
1439 1255
1440void 1256void
1441aio_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)
1442 SV * out_fh
1443 SV * in_fh
1444 UV in_offset
1445 UV length
1446 SV * callback
1447 PROTOTYPE: $$$$;$
1448 PPCODE: 1258 PPCODE:
1449{ 1259{
1260 int ifd = s_fileno_croak (in_fh , 0);
1261 int ofd = s_fileno_croak (out_fh, 1);
1450 dREQ; 1262 dREQ;
1451 1263
1452 req->type = REQ_SENDFILE; 1264 req->type = EIO_SENDFILE;
1453 req->fh = newSVsv (out_fh); 1265 req->sv1 = newSVsv (out_fh);
1454 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1266 req->int1 = ofd;
1455 req->sv2 = newSVsv (in_fh); 1267 req->sv2 = newSVsv (in_fh);
1456 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1268 req->int2 = ifd;
1457 req->offs = in_offset; 1269 req->offs = in_offset;
1458 req->size = length; 1270 req->size = length;
1459 1271
1460 REQ_SEND; 1272 REQ_SEND;
1461} 1273}
1462 1274
1463void 1275void
1464aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1276aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1465 SV * fh
1466 UV offset
1467 IV length
1468 SV * callback
1469 PROTOTYPE: $$$;$
1470 PPCODE: 1277 PPCODE:
1471{ 1278{
1279 int fd = s_fileno_croak (fh, 0);
1472 dREQ; 1280 dREQ;
1473 1281
1474 req->type = REQ_READAHEAD; 1282 req->type = EIO_READAHEAD;
1475 req->fh = newSVsv (fh); 1283 req->sv1 = newSVsv (fh);
1476 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1284 req->int1 = fd;
1477 req->offs = offset; 1285 req->offs = offset;
1478 req->size = length; 1286 req->size = length;
1479 1287
1480 REQ_SEND; 1288 REQ_SEND;
1481} 1289}
1482 1290
1483void 1291void
1484aio_stat (fh_or_path,callback=&PL_sv_undef) 1292aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1485 SV8 * fh_or_path
1486 SV * callback
1487 ALIAS: 1293 ALIAS:
1488 aio_stat = REQ_STAT 1294 aio_stat = EIO_STAT
1489 aio_lstat = REQ_LSTAT 1295 aio_lstat = EIO_LSTAT
1296 aio_statvfs = EIO_STATVFS
1490 PPCODE: 1297 PPCODE:
1491{ 1298{
1492 dREQ; 1299 dREQ;
1493 1300
1494 req->ptr2 = malloc (sizeof (Stat_t));
1495 if (!req->ptr2)
1496 {
1497 req_free (req);
1498 croak ("out of memory during aio_stat statdata allocation");
1499 }
1500
1501 req->flags |= FLAG_PTR2_FREE;
1502
1503 if (SvPOK (fh_or_path))
1504 {
1505 req->type = ix;
1506 req->sv1 = newSVsv (fh_or_path); 1301 req->sv1 = newSVsv (fh_or_path);
1507 req->ptr1 = SvPVbyte_nolen (req->sv1); 1302 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1508 }
1509 else
1510 {
1511 req->type = REQ_FSTAT;
1512 req->fh = newSVsv (fh_or_path);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514 }
1515
1516 REQ_SEND; 1303 REQ_SEND;
1517} 1304}
1518 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
1519void 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
1520aio_unlink (pathname,callback=&PL_sv_undef) 1403aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1521 SV8 * pathname
1522 SV * callback
1523 ALIAS: 1404 ALIAS:
1524 aio_unlink = REQ_UNLINK 1405 aio_unlink = EIO_UNLINK
1525 aio_rmdir = REQ_RMDIR 1406 aio_rmdir = EIO_RMDIR
1526 aio_readdir = REQ_READDIR 1407 aio_readdir = EIO_READDIR
1527 PPCODE: 1408 PPCODE:
1528{ 1409{
1529 dREQ; 1410 dREQ;
1530 1411
1531 req->type = ix; 1412 req->type = ix;
1532 req->sv1 = newSVsv (pathname); 1413 req_set_path1 (req, pathname);
1533 req->ptr1 = SvPVbyte_nolen (req->sv1);
1534 1414
1535 REQ_SEND; 1415 REQ_SEND;
1536} 1416}
1537 1417
1538void 1418void
1539aio_link (oldpath,newpath,callback=&PL_sv_undef) 1419aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1540 SV8 * oldpath
1541 SV8 * newpath
1542 SV * callback
1543 ALIAS: 1420 ALIAS:
1544 aio_link = REQ_LINK 1421 aio_link = EIO_LINK
1545 aio_symlink = REQ_SYMLINK 1422 aio_symlink = EIO_SYMLINK
1546 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)
1547 PPCODE: 1439 PPCODE:
1548{ 1440{
1549 dREQ; 1441 dREQ;
1550 1442
1551 req->type = ix; 1443 req->type = EIO_MKNOD;
1552 req->fh = newSVsv (oldpath); 1444 req->int2 = (mode_t)mode;
1553 req->ptr2 = SvPVbyte_nolen (req->fh); 1445 req->offs = dev;
1554 req->sv1 = newSVsv (newpath); 1446 req_set_path1 (req, pathname);
1555 req->ptr1 = SvPVbyte_nolen (req->sv1);
1556 1447
1557 REQ_SEND; 1448 REQ_SEND;
1558} 1449}
1559 1450
1560void 1451void
1561aio_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)
1562 SV8 * pathname 1453 ALIAS:
1563 SV * callback 1454 aio_mtouch = EIO_MTOUCH
1564 UV mode 1455 aio_msync = EIO_MSYNC
1565 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)
1566 PPCODE: 1527 PPCODE:
1567{ 1528{
1568 dREQ; 1529 dREQ;
1569 1530
1570 req->type = REQ_MKNOD; 1531 req->type = EIO_BUSY;
1571 req->sv1 = newSVsv (pathname); 1532 req->nv1 = delay < 0. ? 0. : delay;
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1533
1573 req->mode = (mode_t)mode;
1574 req->offs = dev;
1575
1576 REQ_SEND; 1534 REQ_SEND;
1577} 1535}
1578 1536
1579void 1537void
1580aio_busy (delay,callback=&PL_sv_undef) 1538aio_group (SV *callback=&PL_sv_undef)
1581 double delay 1539 PPCODE:
1582 SV * callback
1583 PPCODE:
1584{ 1540{
1585 dREQ; 1541 dREQ;
1586 1542
1587 req->type = REQ_BUSY; 1543 req->type = EIO_GROUP;
1588 req->int1 = delay < 0. ? 0 : delay;
1589 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1590 1544
1591 REQ_SEND; 1545 req_submit (req);
1546 XPUSHs (req_sv (req, aio_grp_stash));
1592} 1547}
1593 1548
1594void 1549void
1595aio_group (callback=&PL_sv_undef) 1550aio_nop (SV *callback=&PL_sv_undef)
1596 SV * callback 1551 ALIAS:
1597 PROTOTYPE: ;$ 1552 aio_nop = EIO_NOP
1598 PPCODE: 1553 aio_sync = EIO_SYNC
1554 PPCODE:
1599{ 1555{
1600 dREQ; 1556 dREQ;
1601 1557
1602 req->type = REQ_GROUP;
1603
1604 req_send (req);
1605 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1606}
1607
1608void
1609aio_nop (callback=&PL_sv_undef)
1610 SV * callback
1611 PPCODE:
1612{
1613 dREQ;
1614
1615 req->type = REQ_NOP; 1558 req->type = ix;
1616 1559
1617 REQ_SEND; 1560 REQ_SEND;
1618} 1561}
1619 1562
1620int 1563int
1621aioreq_pri (int pri = 0) 1564aioreq_pri (int pri = 0)
1622 PROTOTYPE: ;$
1623 CODE: 1565 CODE:
1624 RETVAL = next_pri - PRI_BIAS; 1566 RETVAL = next_pri;
1625 if (items > 0) 1567 if (items > 0)
1626 { 1568 {
1627 if (pri < PRI_MIN) pri = PRI_MIN; 1569 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1628 if (pri > PRI_MAX) pri = PRI_MAX; 1570 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1629 next_pri = pri + PRI_BIAS; 1571 next_pri = pri;
1630 } 1572 }
1631 OUTPUT: 1573 OUTPUT:
1632 RETVAL 1574 RETVAL
1633 1575
1634void 1576void
1635aioreq_nice (int nice = 0) 1577aioreq_nice (int nice = 0)
1636 CODE: 1578 CODE:
1637 nice = next_pri - nice; 1579 nice = next_pri - nice;
1638 if (nice < PRI_MIN) nice = PRI_MIN; 1580 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1639 if (nice > PRI_MAX) nice = PRI_MAX; 1581 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1640 next_pri = nice + PRI_BIAS; 1582 next_pri = nice;
1641 1583
1642void 1584void
1643flush () 1585flush ()
1644 PROTOTYPE:
1645 CODE: 1586 CODE:
1646 while (nreqs) 1587 while (eio_nreqs ())
1647 { 1588 {
1648 poll_wait (); 1589 poll_wait ();
1649 poll_cb (0); 1590 poll_cb ();
1650 } 1591 }
1651 1592
1652void
1653poll()
1654 PROTOTYPE:
1655 CODE:
1656 if (nreqs)
1657 {
1658 poll_wait ();
1659 poll_cb (0);
1660 }
1661
1662int 1593int
1663poll_fileno() 1594poll ()
1664 PROTOTYPE:
1665 CODE: 1595 CODE:
1666 RETVAL = respipe [0]; 1596 poll_wait ();
1667 OUTPUT:
1668 RETVAL
1669
1670int
1671poll_cb(...)
1672 PROTOTYPE:
1673 CODE:
1674 RETVAL = poll_cb (); 1597 RETVAL = poll_cb ();
1675 OUTPUT: 1598 OUTPUT:
1676 RETVAL 1599 RETVAL
1677 1600
1678void
1679poll_wait()
1680 PROTOTYPE:
1681 CODE:
1682 if (nreqs)
1683 poll_wait ();
1684
1685int 1601int
1686nreqs() 1602poll_fileno ()
1687 PROTOTYPE:
1688 CODE: 1603 CODE:
1689 RETVAL = nreqs; 1604 RETVAL = s_epipe_fd (&respipe);
1690 OUTPUT: 1605 OUTPUT:
1691 RETVAL 1606 RETVAL
1692 1607
1693int 1608int
1694nready() 1609poll_cb (...)
1695 PROTOTYPE: 1610 PROTOTYPE:
1696 CODE: 1611 CODE:
1697 RETVAL = get_nready (); 1612 RETVAL = poll_cb ();
1698 OUTPUT: 1613 OUTPUT:
1699 RETVAL 1614 RETVAL
1700 1615
1616void
1617poll_wait ()
1618 CODE:
1619 poll_wait ();
1620
1701int 1621int
1702npending() 1622nreqs ()
1703 PROTOTYPE:
1704 CODE: 1623 CODE:
1705 RETVAL = get_npending (); 1624 RETVAL = eio_nreqs ();
1706 OUTPUT: 1625 OUTPUT:
1707 RETVAL 1626 RETVAL
1708 1627
1709int 1628int
1710nthreads() 1629nready ()
1711 PROTOTYPE:
1712 CODE: 1630 CODE:
1713 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1631 RETVAL = eio_nready ();
1714 RETVAL = started;
1715 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1716 OUTPUT: 1632 OUTPUT:
1717 RETVAL 1633 RETVAL
1718 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
1719PROTOTYPES: DISABLE 1776PROTOTYPES: DISABLE
1720 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
1721MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1802MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1722 1803
1723void 1804void
1724cancel (aio_req_ornot req) 1805cancel (aio_req_ornot req)
1725 CODE: 1806 CODE:
1726 req_cancel (req); 1807 eio_cancel (req);
1727 1808
1728void 1809void
1729cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1810cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1730 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
1731 SvREFCNT_dec (req->callback); 1820 SvREFCNT_dec (req->callback);
1732 req->callback = newSVsv (callback); 1821 req->callback = SvREFCNT_inc (cb_cv);
1822 }
1823}
1733 1824
1734MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1825MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1735 1826
1736void 1827void
1737add (aio_req grp, ...) 1828add (aio_req grp, ...)
1738 PPCODE: 1829 PPCODE:
1739{ 1830{
1740 int i; 1831 int i;
1741 aio_req req;
1742 1832
1743 if (grp->int1 == 2) 1833 if (grp->int1 == 2)
1744 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");
1745 1835
1746 for (i = 1; i < items; ++i ) 1836 for (i = 1; i < items; ++i )
1747 { 1837 {
1838 aio_req req;
1839
1748 if (GIMME_V != G_VOID) 1840 if (GIMME_V != G_VOID)
1749 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1841 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1750 1842
1751 req = SvAIO_REQ (ST (i)); 1843 req = SvAIO_REQ (ST (i));
1752 1844
1753 if (req) 1845 if (req)
1754 { 1846 eio_grp_add (grp, req);
1755 ++grp->size;
1756 req->grp = grp;
1757
1758 req->grp_prev = 0;
1759 req->grp_next = grp->grp_first;
1760
1761 if (grp->grp_first)
1762 grp->grp_first->grp_prev = req;
1763
1764 grp->grp_first = req;
1765 }
1766 } 1847 }
1767} 1848}
1768 1849
1769void 1850void
1770cancel_subs (aio_req_ornot req) 1851cancel_subs (aio_req_ornot req)
… …
1779 AV *av; 1860 AV *av;
1780 1861
1781 grp->errorno = errno; 1862 grp->errorno = errno;
1782 1863
1783 av = newAV (); 1864 av = newAV ();
1865 av_extend (av, items - 1);
1784 1866
1785 for (i = 1; i < items; ++i ) 1867 for (i = 1; i < items; ++i )
1786 av_push (av, newSVsv (ST (i))); 1868 av_push (av, newSVsv (ST (i)));
1787 1869
1788 SvREFCNT_dec (grp->sv1); 1870 SvREFCNT_dec (grp->sv1);
… …
1795 grp->errorno = errorno; 1877 grp->errorno = errorno;
1796 1878
1797void 1879void
1798limit (aio_req grp, int limit) 1880limit (aio_req grp, int limit)
1799 CODE: 1881 CODE:
1800 grp->int2 = limit; 1882 eio_grp_limit (grp, limit);
1801 aio_grp_feed (grp);
1802 1883
1803void 1884void
1804feed (aio_req grp, SV *callback=&PL_sv_undef) 1885feed (aio_req grp, SV *callback=&PL_sv_undef)
1805 CODE: 1886 CODE:
1806{ 1887{
1807 SvREFCNT_dec (grp->sv2); 1888 SvREFCNT_dec (grp->sv2);
1808 grp->sv2 = newSVsv (callback); 1889 grp->sv2 = newSVsv (callback);
1890 grp->feed = aio_grp_feed;
1809 1891
1810 if (grp->int2 <= 0) 1892 if (grp->int2 <= 0)
1811 grp->int2 = 2; 1893 grp->int2 = 2;
1812 1894
1813 aio_grp_feed (grp); 1895 eio_grp_limit (grp, grp->int2);
1814} 1896}
1815 1897

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