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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.93 by root, Wed Nov 8 02:01:02 2006 UTC vs.
Revision 1.203 by root, Thu Sep 29 23:06:24 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 ((IV)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 (req->result ? &PL_sv_undef : 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 = POPs; 555 symlen = snprintf (
453 PUSHMARK (SP); 556 sym,
557 sizeof (sym),
558 "%s&=%d",
559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560 (int)req->result
561 );
562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
454 XPUSHs (fh); 567 PUSHs (fh);
455 } 568 }
456 break; 569 break;
457 570
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
458 case REQ_GROUP: 603 case EIO_GROUP:
459 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
460 605
461 if (req->sv1) 606 if (req->sv1)
462 { 607 {
463 int i; 608 int i;
… …
467 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
468 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
469 } 614 }
470 break; 615 break;
471 616
472 case REQ_NOP: 617 case EIO_NOP:
473 case REQ_BUSY: 618 case EIO_BUSY:
474 break; 619 break;
475 620
476 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
477 if (req->result > 0) 623 if (req->result > 0)
478 { 624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
479 SvCUR_set (req->sv1, req->result);
480 *SvEND (req->sv1) = 0;
481 PUSHs (req->sv1);
482 }
483 break; 625 break;
484 626
485 case REQ_STAT: 627 case EIO_STAT:
486 case REQ_LSTAT: 628 case EIO_LSTAT:
487 case REQ_FSTAT: 629 case EIO_FSTAT:
488 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
489 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
490 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
491 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
492 break; 637 break;
493 638
494 case REQ_READ: 639 case EIO_READ:
640 {
495 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));
496 *SvEND (req->sv1) = 0; 642 *SvEND (req->sv2) = 0;
497 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
498 break; 647 break;
499 648
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
500 default: 654 default:
501 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
502 break; 656 break;
503 } 657 }
504 658
505 errno = req->errorno; 659 errno = req->errorno;
506 660
507 PUTBACK; 661 PUTBACK;
508 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
509 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;
510 669
511 FREETMPS; 670 FREETMPS;
512 LEAVE; 671 LEAVE;
672
673 PUTBACK;
513 } 674 }
514 675
515 if (req->grp) 676 return !!SvTRUE (ERRSV);
516 {
517 aio_req grp = req->grp;
518
519 /* unlink request */
520 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
521 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
522
523 if (grp->grp_first == req)
524 grp->grp_first = req->grp_next;
525
526 aio_grp_dec (grp);
527 }
528
529 if (SvTRUE (ERRSV))
530 {
531 req_free (req);
532 croak (0);
533 }
534} 677}
535 678
536static void req_free (aio_req req) 679static void
680req_destroy (aio_req req)
537{ 681{
538 if (req->self) 682 if (req->self)
539 { 683 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
542 } 686 }
543 687
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
548 693
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 694 Safefree (req);
553} 695}
554 696
697static void
555static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
556{ 699{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
560 return; 701 return;
561 702
562 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 704 grp->sv2 = 0;
564 705
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 707}
568 708
569static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
570{ 711{
571 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
572 713 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 714}
575 715
576static void *aio_proc(void *arg); 716static void
577 717poll_wait (void)
578static void start_thread (void)
579{ 718{
580 sigset_t fullsigset, oldsigset;
581 pthread_attr_t attr;
582
583 worker *wrk = calloc (1, sizeof (worker));
584
585 if (!wrk)
586 croak ("unable to allocate worker thread data");
587
588 pthread_attr_init (&attr);
589 pthread_attr_setstacksize (&attr, STACKSIZE);
590 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
591#ifdef PTHREAD_SCOPE_PROCESS
592 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
593#endif
594
595 sigfillset (&fullsigset);
596
597 LOCK (wrklock);
598 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
599
600 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
601 {
602 wrk->prev = &wrk_first;
603 wrk->next = wrk_first.next;
604 wrk_first.next->prev = wrk;
605 wrk_first.next = wrk;
606 ++started;
607 }
608 else
609 free (wrk);
610
611 sigprocmask (SIG_SETMASK, &oldsigset, 0);
612 UNLOCK (wrklock);
613}
614
615static void maybe_start_thread ()
616{
617 if (get_nthreads () >= wanted)
618 return;
619
620 /* todo: maybe use idle here, but might be less exact */
621 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
622 return;
623
624 start_thread ();
625}
626
627static void req_send (aio_req req)
628{
629 ++nreqs;
630
631 LOCK (reqlock);
632 ++nready;
633 reqq_push (&req_queue, req);
634 pthread_cond_signal (&reqwait);
635 UNLOCK (reqlock);
636
637 maybe_start_thread ();
638}
639
640static void end_thread (void)
641{
642 aio_req req;
643
644 Newz (0, req, 1, aio_cb);
645
646 req->type = REQ_QUIT;
647 req->pri = PRI_MAX + PRI_BIAS;
648
649 LOCK (reqlock);
650 reqq_push (&req_queue, req);
651 pthread_cond_signal (&reqwait);
652 UNLOCK (reqlock);
653
654 LOCK (wrklock);
655 --started;
656 UNLOCK (wrklock);
657}
658
659static void set_max_idle (int nthreads)
660{
661 if (WORDACCESS_UNSAFE) LOCK (reqlock);
662 max_idle = nthreads <= 0 ? 1 : nthreads;
663 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
664}
665
666static void min_parallel (int nthreads)
667{
668 if (wanted < nthreads)
669 wanted = nthreads;
670}
671
672static void max_parallel (int nthreads)
673{
674 if (wanted > nthreads)
675 wanted = nthreads;
676
677 while (started > wanted)
678 end_thread ();
679}
680
681static void poll_wait ()
682{
683 fd_set rfd;
684
685 while (nreqs) 719 while (eio_nreqs ())
686 { 720 {
687 int size; 721 int size;
688 if (WORDACCESS_UNSAFE) LOCK (reslock); 722
723 X_LOCK (reslock);
689 size = res_queue.size; 724 size = res_queue.size;
690 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 725 X_UNLOCK (reslock);
691 726
692 if (size) 727 if (size)
693 return; 728 return;
694 729
695 maybe_start_thread (); 730 etp_maybe_start_thread ();
696 731
697 FD_ZERO(&rfd); 732 s_epipe_wait (&respipe);
698 FD_SET(respipe [0], &rfd);
699
700 select (respipe [0] + 1, &rfd, 0, 0, 0);
701 } 733 }
702} 734}
703 735
704static int poll_cb () 736static int
737poll_cb (void)
705{ 738{
706 dSP;
707 int count = 0;
708 int maxreqs = max_poll_reqs;
709 int do_croak = 0;
710 struct timeval tv_start, tv_now;
711 aio_req req;
712
713 if (max_poll_time)
714 gettimeofday (&tv_start, 0);
715
716 for (;;) 739 for (;;)
717 { 740 {
718 for (;;) 741 int res = eio_poll ();
719 {
720 maybe_start_thread ();
721 742
722 LOCK (reslock); 743 if (res > 0)
723 req = reqq_shift (&res_queue);
724
725 if (req)
726 {
727 --npending;
728
729 if (!res_queue.size)
730 {
731 /* read any signals sent by the worker threads */
732 char buf [32];
733 while (read (respipe [0], buf, 32) == 32)
734 ;
735 }
736 }
737
738 UNLOCK (reslock);
739
740 if (!req)
741 break;
742
743 --nreqs;
744
745 if (req->type == REQ_GROUP && req->size)
746 {
747 req->int1 = 1; /* mark request as delayed */
748 continue;
749 }
750 else
751 {
752 req_invoke (req);
753
754 count++;
755 }
756
757 req_free (req);
758
759 if (maxreqs && !--maxreqs)
760 break;
761
762 if (max_poll_time)
763 {
764 gettimeofday (&tv_now, 0);
765
766 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
767 break;
768 }
769 }
770
771 if (nreqs <= max_outstanding)
772 break; 744 croak (0);
745
746 if (!max_outstanding || max_outstanding > eio_nreqs ())
747 return res;
773 748
774 poll_wait (); 749 poll_wait ();
775
776 ++maxreqs;
777 } 750 }
778
779 return count;
780} 751}
781 752
782static void create_pipe () 753static void ecb_cold
754reinit (void)
783{ 755{
784 if (pipe (respipe)) 756 create_respipe ();
785 croak ("unable to initialize result pipe");
786 757
787 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 758 if (eio_init (want_poll, done_poll) < 0)
788 croak ("cannot set result pipe to nonblocking mode"); 759 croak ("IO::AIO: unable to initialise eio library");
789
790 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
791 croak ("cannot set result pipe to nonblocking mode");
792} 760}
793 761
794/*****************************************************************************/ 762/*****************************************************************************/
795/* work around various missing functions */
796 763
797#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
798# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
799# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
800
801/*
802 * make our pread/pwrite safe against themselves, but not against
803 * normal read/write by using a mutex. slows down execution a lot,
804 * but that's your problem, not mine.
805 */
806static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
807
808static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
809{
810 ssize_t res;
811 off_t ooffset;
812
813 LOCK (preadwritelock);
814 ooffset = lseek (fd, 0, SEEK_CUR);
815 lseek (fd, offset, SEEK_SET);
816 res = read (fd, buf, count);
817 lseek (fd, ooffset, SEEK_SET);
818 UNLOCK (preadwritelock);
819
820 return res;
821}
822
823static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
824{
825 ssize_t res;
826 off_t ooffset;
827
828 LOCK (preadwritelock);
829 ooffset = lseek (fd, 0, SEEK_CUR);
830 lseek (fd, offset, SEEK_SET);
831 res = write (fd, buf, count);
832 lseek (fd, offset, SEEK_SET);
833 UNLOCK (preadwritelock);
834
835 return res;
836}
837#endif
838
839#if !HAVE_FDATASYNC
840# define fdatasync fsync
841#endif
842
843#if !HAVE_READAHEAD
844# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
845
846static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
847{
848 dBUF;
849
850 while (count > 0)
851 {
852 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
853
854 pread (fd, aio_buf, len, offset);
855 offset += len;
856 count -= len;
857 }
858
859 errno = 0;
860}
861
862#endif
863
864#if !HAVE_READDIR_R
865# define readdir_r aio_readdir_r
866
867static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
868
869static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
870{
871 struct dirent *e;
872 int errorno;
873
874 LOCK (readdirlock);
875
876 e = readdir (dirp);
877 errorno = errno;
878
879 if (e)
880 {
881 *res = ent;
882 strcpy (ent->d_name, e->d_name);
883 }
884 else
885 *res = 0;
886
887 UNLOCK (readdirlock);
888
889 errno = errorno;
890 return e ? 0 : -1;
891}
892#endif
893
894/* sendfile always needs emulation */
895static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
896{
897 ssize_t res;
898
899 if (!count)
900 return 0;
901
902#if HAVE_SENDFILE
903# if __linux
904 res = sendfile (ofd, ifd, &offset, count);
905
906# elif __freebsd
907 /*
908 * Of course, the freebsd sendfile is a dire hack with no thoughts
909 * wasted on making it similar to other I/O functions.
910 */
911 {
912 off_t sbytes;
913 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
914
915 if (res < 0 && sbytes)
916 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
917 res = sbytes;
918 }
919
920# elif __hpux
921 res = sendfile (ofd, ifd, offset, count, 0, 0);
922
923# elif __solaris
924 {
925 struct sendfilevec vec;
926 size_t sbytes;
927
928 vec.sfv_fd = ifd;
929 vec.sfv_flag = 0;
930 vec.sfv_off = offset;
931 vec.sfv_len = count;
932
933 res = sendfilev (ofd, &vec, 1, &sbytes);
934
935 if (res < 0 && sbytes)
936 res = sbytes;
937 }
938
939# endif 767#endif
940#else
941 res = -1;
942 errno = ENOSYS;
943#endif
944 768
945 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
946 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
947#if __solaris 771# define PROT_NONE 0
948 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
949#endif 776#endif
950 )
951 )
952 {
953 /* emulate sendfile. this is a major pain in the ass */
954 dBUF;
955 777
956 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
957 779
958 while (count) 780static int ecb_cold
959 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
960 ssize_t cnt; 782{
961 783 int old_errno = errno;
962 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;
963 786
964 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
965 {
966 if (cnt && !res) res = -1;
967 break;
968 }
969 788
970 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
971 790
972 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
973 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
974 if (cnt && !res) res = -1;
975 break;
976 }
977 793
978 offset += cnt; 794 SvCUR_set (sv, 0);
979 res += cnt; 795 SvPVX (sv) = 0;
980 count -= cnt; 796 SvOK_off (sv);
981 }
982 }
983 797
984 return res; 798 return 0;
985} 799}
986 800
987/* read a full directory */ 801static MGVTBL mmap_vtbl = {
988static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
989{ 803};
990 DIR *dirp;
991 union
992 {
993 struct dirent d;
994 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
995 } *u;
996 struct dirent *entp;
997 char *name, *names;
998 int memlen = 4096;
999 int memofs = 0;
1000 int res = 0;
1001 int errorno;
1002
1003 LOCK (wrklock);
1004 self->dirp = dirp = opendir (req->ptr1);
1005 self->dbuf = u = malloc (sizeof (*u));
1006 req->flags |= FLAG_PTR2_FREE;
1007 req->ptr2 = names = malloc (memlen);
1008 UNLOCK (wrklock);
1009
1010 if (dirp && u && names)
1011 for (;;)
1012 {
1013 errno = 0;
1014 readdir_r (dirp, &u->d, &entp);
1015
1016 if (!entp)
1017 break;
1018
1019 name = entp->d_name;
1020
1021 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1022 {
1023 int len = strlen (name) + 1;
1024
1025 res++;
1026
1027 while (memofs + len > memlen)
1028 {
1029 memlen *= 2;
1030 LOCK (wrklock);
1031 req->ptr2 = names = realloc (names, memlen);
1032 UNLOCK (wrklock);
1033
1034 if (!names)
1035 break;
1036 }
1037
1038 memcpy (names + memofs, name, len);
1039 memofs += len;
1040 }
1041 }
1042
1043 if (errno)
1044 res = -1;
1045
1046 req->result = res;
1047}
1048 804
1049/*****************************************************************************/ 805/*****************************************************************************/
1050 806
1051static void *aio_proc (void *thr_arg) 807static SV *
808get_cb (SV *cb_sv)
1052{ 809{
810 SvGETMAGIC (cb_sv);
811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
812}
813
814static aio_req ecb_noinline
815dreq (SV *callback)
816{
817 SV *cb_cv;
1053 aio_req req; 818 aio_req req;
1054 struct timespec ts; 819 int req_pri = next_pri;
1055 worker *self = (worker *)thr_arg; 820 next_pri = EIO_PRI_DEFAULT;
1056 821
1057 /* try to distribute timeouts somewhat evenly */ 822 cb_cv = get_cb (callback);
1058 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1059 * (1000000000UL / 1024UL);
1060 823
1061 for (;;) 824 Newz (0, req, 1, eio_req);
1062 { 825 if (!req)
1063 ts.tv_sec = time (0) + IDLE_TIMEOUT; 826 croak ("out of memory during eio_req allocation");
1064 827
1065 LOCK (reqlock); 828 req->callback = SvREFCNT_inc (cb_cv);
829 req->pri = req_pri;
1066 830
1067 for (;;)
1068 {
1069 self->req = req = reqq_shift (&req_queue);
1070
1071 if (req)
1072 break;
1073
1074 ++idle;
1075
1076 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1077 == ETIMEDOUT)
1078 {
1079 if (idle > max_idle)
1080 {
1081 --idle;
1082 UNLOCK (reqlock);
1083 LOCK (wrklock);
1084 --started;
1085 UNLOCK (wrklock);
1086 goto quit;
1087 }
1088
1089 /* we are allowed to idle, so do so without any timeout */
1090 pthread_cond_wait (&reqwait, &reqlock);
1091 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1092 }
1093
1094 --idle;
1095 }
1096
1097 --nready;
1098
1099 UNLOCK (reqlock);
1100
1101 errno = 0; /* strictly unnecessary */
1102
1103 if (!(req->flags & FLAG_CANCELLED))
1104 switch (req->type)
1105 {
1106 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1107 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1108
1109 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1110 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1111
1112 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1113 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1115
1116 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1117 case REQ_CLOSE: req->result = close (req->int1); break;
1118 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1119 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1120 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1121 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1122 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1123 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1124 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1125
1126 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1127 case REQ_FSYNC: req->result = fsync (req->int1); break;
1128 case REQ_READDIR: scandir_ (req, self); break;
1129
1130 case REQ_BUSY:
1131 {
1132 struct timeval tv;
1133
1134 tv.tv_sec = req->int1;
1135 tv.tv_usec = req->int2;
1136
1137 req->result = select (0, 0, 0, 0, &tv);
1138 }
1139
1140 case REQ_GROUP:
1141 case REQ_NOP:
1142 break;
1143
1144 case REQ_QUIT:
1145 goto quit;
1146
1147 default:
1148 req->result = ENOSYS;
1149 break;
1150 }
1151
1152 req->errorno = errno;
1153
1154 LOCK (reslock);
1155
1156 ++npending;
1157
1158 if (!reqq_push (&res_queue, req))
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 self->req = 0;
1163 worker_clear (self);
1164
1165 UNLOCK (reslock);
1166 }
1167
1168quit:
1169 LOCK (wrklock);
1170 worker_free (self);
1171 UNLOCK (wrklock);
1172
1173 return 0; 831 return req;
1174}
1175
1176/*****************************************************************************/
1177
1178static void atfork_prepare (void)
1179{
1180 LOCK (wrklock);
1181 LOCK (reqlock);
1182 LOCK (reslock);
1183#if !HAVE_PREADWRITE
1184 LOCK (preadwritelock);
1185#endif
1186#if !HAVE_READDIR_R
1187 LOCK (readdirlock);
1188#endif
1189}
1190
1191static void atfork_parent (void)
1192{
1193#if !HAVE_READDIR_R
1194 UNLOCK (readdirlock);
1195#endif
1196#if !HAVE_PREADWRITE
1197 UNLOCK (preadwritelock);
1198#endif
1199 UNLOCK (reslock);
1200 UNLOCK (reqlock);
1201 UNLOCK (wrklock);
1202}
1203
1204static void atfork_child (void)
1205{
1206 aio_req prv;
1207
1208 while (prv = reqq_shift (&req_queue))
1209 req_free (prv);
1210
1211 while (prv = reqq_shift (&res_queue))
1212 req_free (prv);
1213
1214 while (wrk_first.next != &wrk_first)
1215 {
1216 worker *wrk = wrk_first.next;
1217
1218 if (wrk->req)
1219 req_free (wrk->req);
1220
1221 worker_clear (wrk);
1222 worker_free (wrk);
1223 }
1224
1225 started = 0;
1226 idle = 0;
1227 nreqs = 0;
1228 nready = 0;
1229 npending = 0;
1230
1231 close (respipe [0]);
1232 close (respipe [1]);
1233 create_pipe ();
1234
1235 atfork_parent ();
1236} 832}
1237 833
1238#define dREQ \ 834#define dREQ \
1239 aio_req req; \ 835 aio_req req = dreq (callback); \
1240 int req_pri = next_pri; \
1241 next_pri = DEFAULT_PRI + PRI_BIAS; \
1242 \
1243 if (SvOK (callback) && !SvROK (callback)) \
1244 croak ("callback must be undef or of reference type"); \
1245 \
1246 Newz (0, req, 1, aio_cb); \
1247 if (!req) \
1248 croak ("out of memory during aio_req allocation"); \
1249 \
1250 req->callback = newSVsv (callback); \
1251 req->pri = req_pri
1252 836
1253#define REQ_SEND \ 837#define REQ_SEND \
838 PUTBACK; \
1254 req_send (req); \ 839 req_submit (req); \
840 SPAGAIN; \
1255 \ 841 \
1256 if (GIMME_V != G_VOID) \ 842 if (GIMME_V != G_VOID) \
1257 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 843 XPUSHs (req_sv (req, aio_req_stash));
1258 844
845ecb_inline void
846req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
847{
848 if (expect_false (SvROK (path)))
849 {
850 AV *av = (AV *)SvRV (path);
851 SV *wdob;
852
853 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
854 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
855
856 path = AvARRAY (av)[1];
857 wdob = AvARRAY (av)[0];
858
859 if (SvOK (wdob))
860 {
861 *wd = SvAIO_WD (wdob);
862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
863 }
864 else
865 *wd = EIO_INVALID_WD;
866 }
867
868 *pathsv = newSVsv (path);
869 *ptr = SvPVbyte_nolen (*pathsv);
870}
871
872static void ecb_noinline
873req_set_path1 (aio_req req, SV *path)
874{
875 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
876}
877
878static void ecb_noinline
879req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
880{
881 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
882
883 switch (SvTYPE (rv))
884 {
885 case SVt_PVIO:
886 case SVt_PVLV:
887 case SVt_PVGV:
888 req->type = type_fh;
889 req->sv1 = newSVsv (fh_or_path);
890 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
891 break;
892
893 default:
894 req->type = type_path;
895 req_set_path1 (req, fh_or_path);
896 break;
897 }
898}
899
900XS(boot_IO__AIO) ecb_cold;
901
1259MODULE = IO::AIO PACKAGE = IO::AIO 902MODULE = IO::AIO PACKAGE = IO::AIO
1260 903
1261PROTOTYPES: ENABLE 904PROTOTYPES: ENABLE
1262 905
1263BOOT: 906BOOT:
1264{ 907{
908 static const struct {
909 const char *name;
910 IV iv;
911 } *civ, const_iv[] = {
912# define const_niv(name, value) { # name, (IV) value },
913# define const_iv(name) { # name, (IV) name },
914# define const_eio(name) { # name, (IV) EIO_ ## name },
915 const_iv (EXDEV)
916 const_iv (ENOSYS)
917 const_iv (O_RDONLY)
918 const_iv (O_WRONLY)
919 const_iv (O_RDWR)
920 const_iv (O_CREAT)
921 const_iv (O_TRUNC)
922 const_iv (O_EXCL)
923 const_iv (O_APPEND)
924
925 const_iv (O_ASYNC)
926 const_iv (O_DIRECT)
927 const_iv (O_NOATIME)
928
929 const_iv (O_CLOEXEC)
930 const_iv (O_NOCTTY)
931 const_iv (O_NOFOLLOW)
932 const_iv (O_NONBLOCK)
933 const_iv (O_EXEC)
934 const_iv (O_SEARCH)
935 const_iv (O_DIRECTORY)
936 const_iv (O_DSYNC)
937 const_iv (O_RSYNC)
938 const_iv (O_SYNC)
939 const_iv (O_TTY_INIT)
940
941 const_iv (S_IFIFO)
942 const_iv (S_IFCHR)
943 const_iv (S_IFBLK)
944 const_iv (S_IFLNK)
945 const_iv (S_IFREG)
946 const_iv (S_IFDIR)
947 const_iv (S_IFWHT)
948 const_iv (S_IFSOCK)
949 const_iv (S_IFMT)
950
951 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
952 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
953 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
954 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
955 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
956 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
957
958 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
959 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
960 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
961 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
962 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
963
964 const_iv (ST_RDONLY)
965 const_iv (ST_NOSUID)
966 const_iv (ST_NODEV)
967 const_iv (ST_NOEXEC)
968 const_iv (ST_SYNCHRONOUS)
969 const_iv (ST_MANDLOCK)
970 const_iv (ST_WRITE)
971 const_iv (ST_APPEND)
972 const_iv (ST_IMMUTABLE)
973 const_iv (ST_NOATIME)
974 const_iv (ST_NODIRATIME)
975 const_iv (ST_RELATIME)
976
977 const_iv (PROT_NONE)
978 const_iv (PROT_EXEC)
979 const_iv (PROT_READ)
980 const_iv (PROT_WRITE)
981
982 /*const_iv (MAP_FIXED)*/
983 const_iv (MAP_PRIVATE)
984 const_iv (MAP_SHARED)
985 const_iv (MAP_ANONYMOUS)
986
987 /* linuxish */
988 const_iv (MAP_HUGETLB)
989 const_iv (MAP_LOCKED)
990 const_iv (MAP_NORESERVE)
991 const_iv (MAP_POPULATE)
992 const_iv (MAP_NONBLOCK)
993
994 const_eio (MCL_FUTURE)
995 const_eio (MCL_CURRENT)
996
997 const_eio (MS_ASYNC)
998 const_eio (MS_INVALIDATE)
999 const_eio (MS_SYNC)
1000
1001 const_eio (MT_MODIFY)
1002
1003 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1004 const_eio (SYNC_FILE_RANGE_WRITE)
1005 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1006
1007 const_eio (FALLOC_FL_KEEP_SIZE)
1008
1009 const_eio (READDIR_DENTS)
1010 const_eio (READDIR_DIRS_FIRST)
1011 const_eio (READDIR_STAT_ORDER)
1012 const_eio (READDIR_FOUND_UNKNOWN)
1013
1014 const_eio (DT_UNKNOWN)
1015 const_eio (DT_FIFO)
1016 const_eio (DT_CHR)
1017 const_eio (DT_DIR)
1018 const_eio (DT_BLK)
1019 const_eio (DT_REG)
1020 const_eio (DT_LNK)
1021 const_eio (DT_SOCK)
1022 const_eio (DT_WHT)
1023 };
1024
1265 HV *stash = gv_stashpv ("IO::AIO", 1); 1025 aio_stash = gv_stashpv ("IO::AIO" , 1);
1026 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1027 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1028 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1266 1029
1267 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1030 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1268 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1031 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1269 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1270 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1271 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1272 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1273 1032
1274 create_pipe (); 1033 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1275 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1276}
1277 1034
1035 reinit ();
1036}
1037
1278void 1038void
1039reinit ()
1040 PROTOTYPE:
1041
1042void
1279max_poll_reqs (int nreqs) 1043max_poll_reqs (unsigned int nreqs)
1280 PROTOTYPE: $ 1044 PROTOTYPE: $
1281 CODE: 1045 CODE:
1282 max_poll_reqs = nreqs; 1046 eio_set_max_poll_reqs (nreqs);
1283 1047
1284void 1048void
1285max_poll_time (double nseconds) 1049max_poll_time (double nseconds)
1286 PROTOTYPE: $ 1050 PROTOTYPE: $
1287 CODE: 1051 CODE:
1288 max_poll_time = nseconds * AIO_TICKS; 1052 eio_set_max_poll_time (nseconds);
1289 1053
1290void 1054void
1291min_parallel (int nthreads) 1055min_parallel (unsigned int nthreads)
1292 PROTOTYPE: $
1293
1294void
1295max_parallel (int nthreads)
1296 PROTOTYPE: $
1297
1298void
1299max_idle (int nthreads)
1300 PROTOTYPE: $ 1056 PROTOTYPE: $
1301 CODE: 1057 CODE:
1302 set_max_idle (nthreads); 1058 eio_set_min_parallel (nthreads);
1303 1059
1304int 1060void
1305max_outstanding (int maxreqs) 1061max_parallel (unsigned int nthreads)
1306 PROTOTYPE: $ 1062 PROTOTYPE: $
1307 CODE: 1063 CODE:
1308 RETVAL = max_outstanding; 1064 eio_set_max_parallel (nthreads);
1065
1066void
1067max_idle (unsigned int nthreads)
1068 PROTOTYPE: $
1069 CODE:
1070 eio_set_max_idle (nthreads);
1071
1072void
1073idle_timeout (unsigned int seconds)
1074 PROTOTYPE: $
1075 CODE:
1076 eio_set_idle_timeout (seconds);
1077
1078void
1079max_outstanding (unsigned int maxreqs)
1080 PROTOTYPE: $
1081 CODE:
1309 max_outstanding = maxreqs; 1082 max_outstanding = maxreqs;
1310 OUTPUT:
1311 RETVAL
1312 1083
1313void 1084void
1314aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1085aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1315 SV8 * pathname
1316 int flags
1317 int mode
1318 SV * callback
1319 PROTOTYPE: $$$;$
1320 PPCODE: 1086 PPCODE:
1321{ 1087{
1322 dREQ; 1088 dREQ;
1323 1089
1090 req->type = EIO_WD_OPEN;
1091 req_set_path1 (req, pathname);
1092
1093 REQ_SEND;
1094}
1095
1096void
1097aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1098 PPCODE:
1099{
1100 dREQ;
1101
1324 req->type = REQ_OPEN; 1102 req->type = EIO_OPEN;
1325 req->sv1 = newSVsv (pathname); 1103 req_set_path1 (req, pathname);
1326 req->ptr1 = SvPVbyte_nolen (req->sv1);
1327 req->int1 = flags; 1104 req->int1 = flags;
1328 req->mode = mode; 1105 req->int2 = mode;
1329 1106
1330 REQ_SEND; 1107 REQ_SEND;
1331} 1108}
1332 1109
1333void 1110void
1334aio_close (fh,callback=&PL_sv_undef) 1111aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1335 SV * fh
1336 SV * callback
1337 PROTOTYPE: $;$
1338 ALIAS: 1112 ALIAS:
1339 aio_close = REQ_CLOSE
1340 aio_fsync = REQ_FSYNC 1113 aio_fsync = EIO_FSYNC
1341 aio_fdatasync = REQ_FDATASYNC 1114 aio_fdatasync = EIO_FDATASYNC
1115 aio_syncfs = EIO_SYNCFS
1342 PPCODE: 1116 PPCODE:
1343{ 1117{
1118 int fd = s_fileno_croak (fh, 0);
1344 dREQ; 1119 dREQ;
1345 1120
1346 req->type = ix; 1121 req->type = ix;
1347 req->fh = newSVsv (fh); 1122 req->sv1 = newSVsv (fh);
1348 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1123 req->int1 = fd;
1349 1124
1350 REQ_SEND (req); 1125 REQ_SEND (req);
1351} 1126}
1352 1127
1353void 1128void
1129aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1130 PPCODE:
1131{
1132 int fd = s_fileno_croak (fh, 0);
1133 dREQ;
1134
1135 req->type = EIO_SYNC_FILE_RANGE;
1136 req->sv1 = newSVsv (fh);
1137 req->int1 = fd;
1138 req->offs = offset;
1139 req->size = nbytes;
1140 req->int2 = flags;
1141
1142 REQ_SEND (req);
1143}
1144
1145void
1146aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1147 PPCODE:
1148{
1149 int fd = s_fileno_croak (fh, 0);
1150 dREQ;
1151
1152 req->type = EIO_FALLOCATE;
1153 req->sv1 = newSVsv (fh);
1154 req->int1 = fd;
1155 req->int2 = mode;
1156 req->offs = offset;
1157 req->size = len;
1158
1159 REQ_SEND (req);
1160}
1161
1162void
1163aio_close (SV *fh, SV *callback=&PL_sv_undef)
1164 PPCODE:
1165{
1166 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1167 int fd = s_fileno_croak (fh, 0);
1168 dREQ;
1169
1170 if (expect_false (close_fd < 0))
1171 {
1172 int pipefd [2];
1173
1174 if (
1175#ifdef _WIN32
1176 _pipe (pipefd, 1, _O_BINARY) < 0
1177#else
1178 pipe (pipefd) < 0
1179 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1180#endif
1181 || close (pipefd [1]) < 0
1182 )
1183 abort (); /*D*/
1184
1185 close_fd = pipefd [0];
1186 }
1187
1188 req->type = EIO_DUP2;
1189 req->int1 = close_fd;
1190 req->sv2 = newSVsv (fh);
1191 req->int2 = fd;
1192
1193 REQ_SEND (req);
1194}
1195
1196void
1354aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1355 SV * fh
1356 UV offset
1357 UV length
1358 SV8 * data
1359 UV dataoffset
1360 SV * callback
1361 ALIAS: 1198 ALIAS:
1362 aio_read = REQ_READ 1199 aio_read = EIO_READ
1363 aio_write = REQ_WRITE 1200 aio_write = EIO_WRITE
1364 PROTOTYPE: $$$$$;$
1365 PPCODE: 1201 PPCODE:
1366{ 1202{
1367 STRLEN svlen; 1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1368 char *svptr = SvPVbyte (data, svlen); 1205 char *svptr = SvPVbyte (data, svlen);
1369 1206 UV len = SvUV (length);
1370 SvUPGRADE (data, SVt_PV);
1371 SvPOK_on (data);
1372 1207
1373 if (dataoffset < 0) 1208 if (dataoffset < 0)
1374 dataoffset += svlen; 1209 dataoffset += svlen;
1375 1210
1376 if (dataoffset < 0 || dataoffset > svlen) 1211 if (dataoffset < 0 || dataoffset > svlen)
1377 croak ("data offset outside of string"); 1212 croak ("dataoffset outside of data scalar");
1378 1213
1379 if (ix == REQ_WRITE) 1214 if (ix == EIO_WRITE)
1380 { 1215 {
1381 /* write: check length and adjust. */ 1216 /* write: check length and adjust. */
1382 if (length < 0 || length + dataoffset > svlen) 1217 if (!SvOK (length) || len + dataoffset > svlen)
1383 length = svlen - dataoffset; 1218 len = svlen - dataoffset;
1384 } 1219 }
1385 else 1220 else
1386 { 1221 {
1387 /* read: grow scalar as necessary */ 1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1388 svptr = SvGROW (data, length + dataoffset); 1224 svptr = SvGROW (data, len + dataoffset + 1);
1389 } 1225 }
1390
1391 if (length < 0)
1392 croak ("length must not be negative");
1393 1226
1394 { 1227 {
1395 dREQ; 1228 dREQ;
1396 1229
1397 req->type = ix; 1230 req->type = ix;
1398 req->fh = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1399 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1232 req->int1 = fd;
1400 : IoOFP (sv_2io (fh))); 1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1401 req->offs = offset;
1402 req->size = length; 1234 req->size = len;
1403 req->sv1 = SvREFCNT_inc (data); 1235 req->sv2 = SvREFCNT_inc (data);
1404 req->ptr1 = (char *)svptr + dataoffset; 1236 req->ptr2 = (char *)svptr + dataoffset;
1405 req->stroffset = dataoffset; 1237 req->stroffset = dataoffset;
1406 1238
1407 if (!SvREADONLY (data)) 1239 if (!SvREADONLY (data))
1408 { 1240 {
1409 SvREADONLY_on (data); 1241 SvREADONLY_on (data);
1410 req->flags |= FLAG_SV1_RO_OFF; 1242 req->flags |= FLAG_SV2_RO_OFF;
1411 } 1243 }
1412 1244
1413 REQ_SEND; 1245 REQ_SEND;
1414 } 1246 }
1415} 1247}
1416 1248
1417void 1249void
1418aio_readlink (path,callback=&PL_sv_undef) 1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1419 SV8 * path 1251 ALIAS:
1420 SV * callback 1252 aio_readlink = EIO_READLINK
1421 PROTOTYPE: $$;$ 1253 aio_realpath = EIO_REALPATH
1422 PPCODE: 1254 PPCODE:
1423{ 1255{
1424 SV *data;
1425 dREQ; 1256 dREQ;
1426 1257
1427 data = newSV (NAME_MAX);
1428 SvPOK_on (data);
1429
1430 req->type = REQ_READLINK; 1258 req->type = ix;
1431 req->fh = newSVsv (path); 1259 req_set_path1 (req, pathname);
1432 req->ptr2 = SvPVbyte_nolen (req->fh);
1433 req->sv1 = data;
1434 req->ptr1 = SvPVbyte_nolen (data);
1435 1260
1436 REQ_SEND; 1261 REQ_SEND;
1437} 1262}
1438 1263
1439void 1264void
1440aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1441 SV * out_fh
1442 SV * in_fh
1443 UV in_offset
1444 UV length
1445 SV * callback
1446 PROTOTYPE: $$$$;$
1447 PPCODE: 1266 PPCODE:
1448{ 1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1449 dREQ; 1270 dREQ;
1450 1271
1451 req->type = REQ_SENDFILE; 1272 req->type = EIO_SENDFILE;
1452 req->fh = newSVsv (out_fh); 1273 req->sv1 = newSVsv (out_fh);
1453 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1274 req->int1 = ofd;
1454 req->sv2 = newSVsv (in_fh); 1275 req->sv2 = newSVsv (in_fh);
1455 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1276 req->int2 = ifd;
1456 req->offs = in_offset; 1277 req->offs = in_offset;
1457 req->size = length; 1278 req->size = length;
1458 1279
1459 REQ_SEND; 1280 REQ_SEND;
1460} 1281}
1461 1282
1462void 1283void
1463aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1464 SV * fh
1465 UV offset
1466 IV length
1467 SV * callback
1468 PROTOTYPE: $$$;$
1469 PPCODE: 1285 PPCODE:
1470{ 1286{
1287 int fd = s_fileno_croak (fh, 0);
1471 dREQ; 1288 dREQ;
1472 1289
1473 req->type = REQ_READAHEAD; 1290 req->type = EIO_READAHEAD;
1474 req->fh = newSVsv (fh); 1291 req->sv1 = newSVsv (fh);
1475 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1292 req->int1 = fd;
1476 req->offs = offset; 1293 req->offs = offset;
1477 req->size = length; 1294 req->size = length;
1478 1295
1479 REQ_SEND; 1296 REQ_SEND;
1480} 1297}
1481 1298
1482void 1299void
1483aio_stat (fh_or_path,callback=&PL_sv_undef) 1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1484 SV8 * fh_or_path
1485 SV * callback
1486 ALIAS: 1301 ALIAS:
1487 aio_stat = REQ_STAT 1302 aio_stat = EIO_STAT
1488 aio_lstat = REQ_LSTAT 1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1489 PPCODE: 1305 PPCODE:
1490{ 1306{
1491 dREQ; 1307 dREQ;
1492 1308
1493 req->ptr2 = malloc (sizeof (Stat_t)); 1309 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1494 if (!req->ptr2)
1495 {
1496 req_free (req);
1497 croak ("out of memory during aio_stat statdata allocation");
1498 }
1499
1500 req->flags |= FLAG_PTR2_FREE;
1501
1502 if (SvPOK (fh_or_path))
1503 {
1504 req->type = ix;
1505 req->sv1 = newSVsv (fh_or_path);
1506 req->ptr1 = SvPVbyte_nolen (req->sv1);
1507 }
1508 else
1509 {
1510 req->type = REQ_FSTAT;
1511 req->fh = newSVsv (fh_or_path);
1512 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1513 }
1514 1310
1515 REQ_SEND; 1311 REQ_SEND;
1516} 1312}
1517 1313
1314UV
1315major (UV dev)
1316 ALIAS:
1317 minor = 1
1318 CODE:
1319 RETVAL = ix ? major (dev) : minor (dev);
1320 OUTPUT:
1321 RETVAL
1322
1323UV
1324makedev (UV maj, UV min)
1325 CODE:
1326 RETVAL = makedev (maj, min);
1327 OUTPUT:
1328 RETVAL
1329
1518void 1330void
1331aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1336 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1337 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1338 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1339
1340 REQ_SEND;
1341}
1342
1343void
1344aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1345 PPCODE:
1346{
1347 dREQ;
1348
1349 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1350 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1351
1352 REQ_SEND;
1353}
1354
1355void
1356aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1357 PPCODE:
1358{
1359 dREQ;
1360
1361 req->int2 = mode;
1362 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1363
1364 REQ_SEND;
1365}
1366
1367void
1368aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1374 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1375 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1376
1377 REQ_SEND;
1378}
1379
1380void
1381aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->type = EIO_READDIR;
1387 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1388
1389 if (flags & EIO_READDIR_DENTS)
1390 req->int1 |= EIO_READDIR_CUSTOM2;
1391
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->type = EIO_MKDIR;
1404 req->int2 = mode;
1405 req_set_path1 (req, pathname);
1406
1407 REQ_SEND;
1408}
1409
1410void
1519aio_unlink (pathname,callback=&PL_sv_undef) 1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1520 SV8 * pathname
1521 SV * callback
1522 ALIAS: 1412 ALIAS:
1523 aio_unlink = REQ_UNLINK 1413 aio_unlink = EIO_UNLINK
1524 aio_rmdir = REQ_RMDIR 1414 aio_rmdir = EIO_RMDIR
1525 aio_readdir = REQ_READDIR 1415 aio_readdir = EIO_READDIR
1526 PPCODE: 1416 PPCODE:
1527{ 1417{
1528 dREQ; 1418 dREQ;
1529 1419
1530 req->type = ix; 1420 req->type = ix;
1531 req->sv1 = newSVsv (pathname); 1421 req_set_path1 (req, pathname);
1532 req->ptr1 = SvPVbyte_nolen (req->sv1);
1533 1422
1534 REQ_SEND; 1423 REQ_SEND;
1535} 1424}
1536 1425
1537void 1426void
1538aio_link (oldpath,newpath,callback=&PL_sv_undef) 1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1539 SV8 * oldpath
1540 SV8 * newpath
1541 SV * callback
1542 ALIAS: 1428 ALIAS:
1543 aio_link = REQ_LINK 1429 aio_link = EIO_LINK
1544 aio_symlink = REQ_SYMLINK 1430 aio_symlink = EIO_SYMLINK
1545 aio_rename = REQ_RENAME 1431 aio_rename = EIO_RENAME
1432 PPCODE:
1433{
1434 dREQ;
1435 eio_wd wd2 = 0;
1436
1437 req->type = ix;
1438 req_set_path1 (req, oldpath);
1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1440 req->int3 = (long)wd2;
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1546 PPCODE: 1447 PPCODE:
1547{ 1448{
1548 dREQ; 1449 dREQ;
1549 1450
1550 req->type = ix; 1451 req->type = EIO_MKNOD;
1551 req->fh = newSVsv (oldpath); 1452 req->int2 = (mode_t)mode;
1552 req->ptr2 = SvPVbyte_nolen (req->fh); 1453 req->offs = dev;
1553 req->sv1 = newSVsv (newpath); 1454 req_set_path1 (req, pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 1455
1556 REQ_SEND; 1456 REQ_SEND;
1557} 1457}
1558 1458
1559void 1459void
1560aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1460aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1561 SV8 * pathname 1461 ALIAS:
1562 SV * callback 1462 aio_mtouch = EIO_MTOUCH
1563 UV mode 1463 aio_msync = EIO_MSYNC
1564 UV dev 1464 PPCODE:
1465{
1466 STRLEN svlen;
1467 char *svptr = SvPVbyte (data, svlen);
1468 UV len = SvUV (length);
1469
1470 if (offset < 0)
1471 offset += svlen;
1472
1473 if (offset < 0 || offset > svlen)
1474 croak ("offset outside of scalar");
1475
1476 if (!SvOK (length) || len + offset > svlen)
1477 len = svlen - offset;
1478
1479 {
1480 dREQ;
1481
1482 req->type = ix;
1483 req->sv2 = SvREFCNT_inc (data);
1484 req->ptr2 = (char *)svptr + offset;
1485 req->size = len;
1486 req->int1 = flags;
1487
1488 REQ_SEND;
1489 }
1490}
1491
1492void
1493aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1494 PPCODE:
1495{
1496 STRLEN svlen;
1497 char *svptr = SvPVbyte (data, svlen);
1498 UV len = SvUV (length);
1499
1500 if (offset < 0)
1501 offset += svlen;
1502
1503 if (offset < 0 || offset > svlen)
1504 croak ("offset outside of scalar");
1505
1506 if (!SvOK (length) || len + offset > svlen)
1507 len = svlen - offset;
1508
1509 {
1510 dREQ;
1511
1512 req->type = EIO_MLOCK;
1513 req->sv2 = SvREFCNT_inc (data);
1514 req->ptr2 = (char *)svptr + offset;
1515 req->size = len;
1516
1517 REQ_SEND;
1518 }
1519}
1520
1521void
1522aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->type = EIO_MLOCKALL;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531}
1532
1533void
1534aio_busy (double delay, SV *callback=&PL_sv_undef)
1565 PPCODE: 1535 PPCODE:
1566{ 1536{
1567 dREQ; 1537 dREQ;
1568 1538
1569 req->type = REQ_MKNOD; 1539 req->type = EIO_BUSY;
1570 req->sv1 = newSVsv (pathname); 1540 req->nv1 = delay < 0. ? 0. : delay;
1571 req->ptr1 = SvPVbyte_nolen (req->sv1); 1541
1572 req->mode = (mode_t)mode;
1573 req->offs = dev;
1574
1575 REQ_SEND; 1542 REQ_SEND;
1576} 1543}
1577 1544
1578void 1545void
1579aio_busy (delay,callback=&PL_sv_undef) 1546aio_group (SV *callback=&PL_sv_undef)
1580 double delay 1547 PPCODE:
1581 SV * callback 1548{
1549 dREQ;
1550
1551 req->type = EIO_GROUP;
1552
1553 req_submit (req);
1554 XPUSHs (req_sv (req, aio_grp_stash));
1555}
1556
1557void
1558aio_nop (SV *callback=&PL_sv_undef)
1559 ALIAS:
1560 aio_nop = EIO_NOP
1561 aio_sync = EIO_SYNC
1582 PPCODE: 1562 PPCODE:
1583{ 1563{
1584 dREQ; 1564 dREQ;
1585 1565
1586 req->type = REQ_BUSY;
1587 req->int1 = delay < 0. ? 0 : delay;
1588 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1589
1590 REQ_SEND;
1591}
1592
1593void
1594aio_group (callback=&PL_sv_undef)
1595 SV * callback
1596 PROTOTYPE: ;$
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req->type = REQ_GROUP;
1602
1603 req_send (req);
1604 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1605}
1606
1607void
1608aio_nop (callback=&PL_sv_undef)
1609 SV * callback
1610 PPCODE:
1611{
1612 dREQ;
1613
1614 req->type = REQ_NOP; 1566 req->type = ix;
1615 1567
1616 REQ_SEND; 1568 REQ_SEND;
1617} 1569}
1618 1570
1619int 1571int
1620aioreq_pri (int pri = 0) 1572aioreq_pri (int pri = 0)
1621 PROTOTYPE: ;$
1622 CODE: 1573 CODE:
1623 RETVAL = next_pri - PRI_BIAS; 1574 RETVAL = next_pri;
1624 if (items > 0) 1575 if (items > 0)
1625 { 1576 {
1626 if (pri < PRI_MIN) pri = PRI_MIN; 1577 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1627 if (pri > PRI_MAX) pri = PRI_MAX; 1578 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1628 next_pri = pri + PRI_BIAS; 1579 next_pri = pri;
1629 } 1580 }
1630 OUTPUT: 1581 OUTPUT:
1631 RETVAL 1582 RETVAL
1632 1583
1633void 1584void
1634aioreq_nice (int nice = 0) 1585aioreq_nice (int nice = 0)
1635 CODE: 1586 CODE:
1636 nice = next_pri - nice; 1587 nice = next_pri - nice;
1637 if (nice < PRI_MIN) nice = PRI_MIN; 1588 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1638 if (nice > PRI_MAX) nice = PRI_MAX; 1589 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1639 next_pri = nice + PRI_BIAS; 1590 next_pri = nice;
1640 1591
1641void 1592void
1642flush () 1593flush ()
1643 PROTOTYPE:
1644 CODE: 1594 CODE:
1645 while (nreqs) 1595 while (eio_nreqs ())
1646 { 1596 {
1647 poll_wait (); 1597 poll_wait ();
1648 poll_cb (); 1598 poll_cb ();
1649 } 1599 }
1650 1600
1651int 1601int
1652poll() 1602poll ()
1653 PROTOTYPE:
1654 CODE: 1603 CODE:
1655 poll_wait (); 1604 poll_wait ();
1656 RETVAL = poll_cb (); 1605 RETVAL = poll_cb ();
1657 OUTPUT: 1606 OUTPUT:
1658 RETVAL 1607 RETVAL
1659 1608
1660int 1609int
1661poll_fileno() 1610poll_fileno ()
1662 PROTOTYPE:
1663 CODE: 1611 CODE:
1664 RETVAL = respipe [0]; 1612 RETVAL = s_epipe_fd (&respipe);
1665 OUTPUT: 1613 OUTPUT:
1666 RETVAL 1614 RETVAL
1667 1615
1668int 1616int
1669poll_cb(...) 1617poll_cb (...)
1670 PROTOTYPE: 1618 PROTOTYPE:
1671 CODE: 1619 CODE:
1672 RETVAL = poll_cb (); 1620 RETVAL = poll_cb ();
1673 OUTPUT: 1621 OUTPUT:
1674 RETVAL 1622 RETVAL
1675 1623
1676void 1624void
1677poll_wait() 1625poll_wait ()
1678 PROTOTYPE:
1679 CODE: 1626 CODE:
1680 poll_wait (); 1627 poll_wait ();
1681 1628
1682int 1629int
1683nreqs() 1630nreqs ()
1684 PROTOTYPE:
1685 CODE: 1631 CODE:
1686 RETVAL = nreqs; 1632 RETVAL = eio_nreqs ();
1687 OUTPUT: 1633 OUTPUT:
1688 RETVAL 1634 RETVAL
1689 1635
1690int 1636int
1691nready() 1637nready ()
1692 PROTOTYPE:
1693 CODE: 1638 CODE:
1694 RETVAL = get_nready (); 1639 RETVAL = eio_nready ();
1695 OUTPUT: 1640 OUTPUT:
1696 RETVAL 1641 RETVAL
1697 1642
1698int 1643int
1699npending() 1644npending ()
1700 PROTOTYPE:
1701 CODE: 1645 CODE:
1702 RETVAL = get_npending (); 1646 RETVAL = eio_npending ();
1703 OUTPUT: 1647 OUTPUT:
1704 RETVAL 1648 RETVAL
1705 1649
1706int 1650int
1707nthreads() 1651nthreads ()
1708 PROTOTYPE:
1709 CODE: 1652 CODE:
1710 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1653 RETVAL = eio_nthreads ();
1711 RETVAL = started;
1712 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1713 OUTPUT: 1654 OUTPUT:
1714 RETVAL 1655 RETVAL
1715 1656
1657int
1658fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1659 CODE:
1660 RETVAL = posix_fadvise (fh, offset, length, advice);
1661 OUTPUT:
1662 RETVAL
1663
1664IV
1665sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1666 CODE:
1667 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1668 OUTPUT:
1669 RETVAL
1670
1671void
1672mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1673 PPCODE:
1674 sv_unmagic (scalar, MMAP_MAGIC);
1675{
1676 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1677 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1678 if (addr == (void *)-1)
1679 XSRETURN_NO;
1680
1681 sv_force_normal (scalar);
1682
1683 /* we store the length in mg_obj, as namlen is I32 :/ */
1684 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1685 ->mg_obj = (SV *)length;
1686
1687 SvUPGRADE (scalar, SVt_PV); /* nop... */
1688
1689 if (!(prot & PROT_WRITE))
1690 SvREADONLY_on (scalar);
1691
1692 if (SvLEN (scalar))
1693 Safefree (SvPVX (scalar));
1694
1695 SvPVX (scalar) = (char *)addr;
1696 SvCUR_set (scalar, length);
1697 SvLEN_set (scalar, 0);
1698 SvPOK_only (scalar);
1699
1700 XSRETURN_YES;
1701}
1702
1703void
1704munmap (SV *scalar)
1705 CODE:
1706 sv_unmagic (scalar, MMAP_MAGIC);
1707
1708int
1709madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1710 ALIAS:
1711 mprotect = 1
1712 CODE:
1713{
1714 STRLEN svlen;
1715 void *addr = SvPVbyte (scalar, svlen);
1716 size_t len = SvUV (length);
1717
1718 if (offset < 0)
1719 offset += svlen;
1720
1721 if (offset < 0 || offset > svlen)
1722 croak ("offset outside of scalar");
1723
1724 if (!SvOK (length) || len + offset > svlen)
1725 len = svlen - offset;
1726
1727 addr = (void *)(((intptr_t)addr) + offset);
1728 eio_page_align (&addr, &len);
1729
1730 switch (ix)
1731 {
1732 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1733 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1734 }
1735}
1736 OUTPUT:
1737 RETVAL
1738
1739int
1740munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1741 CODE:
1742{
1743 STRLEN svlen;
1744 void *addr = SvPVbyte (scalar, svlen);
1745 size_t len = SvUV (length);
1746
1747 if (offset < 0)
1748 offset += svlen;
1749
1750 if (offset < 0 || offset > svlen)
1751 croak ("offset outside of scalar");
1752
1753 if (!SvOK (length) || len + offset > svlen)
1754 len = svlen - offset;
1755
1756 addr = (void *)(((intptr_t)addr) + offset);
1757 eio_page_align (&addr, &len);
1758#if _POSIX_MEMLOCK_RANGE
1759 RETVAL = munlock (addr, len);
1760#else
1761 RETVAL = ((errno = ENOSYS), -1);
1762#endif
1763}
1764 OUTPUT:
1765 RETVAL
1766
1767int
1768munlockall ()
1769 CODE:
1770#if _POSIX_MEMLOCK
1771 munlockall ();
1772#else
1773 RETVAL = -1;
1774 errno = ENOSYS;
1775#endif
1776 OUTPUT:
1777 RETVAL
1778
1779void _on_next_submit (SV *cb)
1780 CODE:
1781 SvREFCNT_dec (on_next_submit);
1782 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1783
1716PROTOTYPES: DISABLE 1784PROTOTYPES: DISABLE
1785
1786MODULE = IO::AIO PACKAGE = IO::AIO::WD
1787
1788BOOT:
1789{
1790 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1791 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1792}
1793
1794void
1795DESTROY (SV *self)
1796 CODE:
1797{
1798 aio_wd wd = SvAIO_WD (self);
1799#if HAVE_AT
1800 {
1801 SV *callback = &PL_sv_undef;
1802 dREQ; /* clobbers next_pri :/ */
1803 next_pri = req->pri; /* restore next_pri */
1804 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1805 req->type = EIO_WD_CLOSE;
1806 req->wd = wd;
1807 REQ_SEND;
1808 }
1809#else
1810 eio_wd_close_sync (wd);
1811#endif
1812}
1717 1813
1718MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1814MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1719 1815
1720void 1816void
1721cancel (aio_req_ornot req) 1817cancel (aio_req_ornot req)
1722 CODE: 1818 CODE:
1723 req_cancel (req); 1819 eio_cancel (req);
1724 1820
1725void 1821void
1726cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1822cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1727 CODE: 1823 PPCODE:
1824{
1825 if (GIMME_V != G_VOID)
1826 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1827
1828 if (items > 1)
1829 {
1830 SV *cb_cv =get_cb (callback);
1831
1728 SvREFCNT_dec (req->callback); 1832 SvREFCNT_dec (req->callback);
1729 req->callback = newSVsv (callback); 1833 req->callback = SvREFCNT_inc (cb_cv);
1834 }
1835}
1730 1836
1731MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1837MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1732 1838
1733void 1839void
1734add (aio_req grp, ...) 1840add (aio_req grp, ...)
1735 PPCODE: 1841 PPCODE:
1736{ 1842{
1737 int i; 1843 int i;
1738 aio_req req;
1739 1844
1740 if (grp->int1 == 2) 1845 if (grp->int1 == 2)
1741 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1846 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1742 1847
1743 for (i = 1; i < items; ++i ) 1848 for (i = 1; i < items; ++i )
1744 { 1849 {
1850 aio_req req;
1851
1745 if (GIMME_V != G_VOID) 1852 if (GIMME_V != G_VOID)
1746 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1853 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1747 1854
1748 req = SvAIO_REQ (ST (i)); 1855 req = SvAIO_REQ (ST (i));
1749 1856
1750 if (req) 1857 if (req)
1751 { 1858 eio_grp_add (grp, req);
1752 ++grp->size;
1753 req->grp = grp;
1754
1755 req->grp_prev = 0;
1756 req->grp_next = grp->grp_first;
1757
1758 if (grp->grp_first)
1759 grp->grp_first->grp_prev = req;
1760
1761 grp->grp_first = req;
1762 }
1763 } 1859 }
1764} 1860}
1765 1861
1766void 1862void
1767cancel_subs (aio_req_ornot req) 1863cancel_subs (aio_req_ornot req)
… …
1776 AV *av; 1872 AV *av;
1777 1873
1778 grp->errorno = errno; 1874 grp->errorno = errno;
1779 1875
1780 av = newAV (); 1876 av = newAV ();
1877 av_extend (av, items - 1);
1781 1878
1782 for (i = 1; i < items; ++i ) 1879 for (i = 1; i < items; ++i )
1783 av_push (av, newSVsv (ST (i))); 1880 av_push (av, newSVsv (ST (i)));
1784 1881
1785 SvREFCNT_dec (grp->sv1); 1882 SvREFCNT_dec (grp->sv1);
… …
1792 grp->errorno = errorno; 1889 grp->errorno = errorno;
1793 1890
1794void 1891void
1795limit (aio_req grp, int limit) 1892limit (aio_req grp, int limit)
1796 CODE: 1893 CODE:
1797 grp->int2 = limit; 1894 eio_grp_limit (grp, limit);
1798 aio_grp_feed (grp);
1799 1895
1800void 1896void
1801feed (aio_req grp, SV *callback=&PL_sv_undef) 1897feed (aio_req grp, SV *callback=&PL_sv_undef)
1802 CODE: 1898 CODE:
1803{ 1899{
1804 SvREFCNT_dec (grp->sv2); 1900 SvREFCNT_dec (grp->sv2);
1805 grp->sv2 = newSVsv (callback); 1901 grp->sv2 = newSVsv (callback);
1902 grp->feed = aio_grp_feed;
1806 1903
1807 if (grp->int2 <= 0) 1904 if (grp->int2 <= 0)
1808 grp->int2 = 2; 1905 grp->int2 = 2;
1809 1906
1810 aio_grp_feed (grp); 1907 eio_grp_limit (grp, grp->int2);
1811} 1908}
1812 1909

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