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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.101 by root, Fri Jun 1 13:25:51 2007 UTC vs.
Revision 1.208 by root, Sat Jan 7 18:42:43 2012 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
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 #define EIO_STRUCT_STAT struct _stati64
68 #define EIO_STRUCT_STATI64
69
70#else
71
72 #include <sys/time.h>
73 #include <sys/select.h>
74 #include <unistd.h>
23#include <utime.h> 75 #include <utime.h>
76 #include <signal.h>
24 77
25#if HAVE_SENDFILE 78 #define EIO_STRUCT_STAT Stat_t
26# if __linux 79
27# include <sys/sendfile.h>
28# elif __freebsd
29# include <sys/socket.h>
30# include <sys/uio.h>
31# elif __hpux
32# include <sys/socket.h>
33# elif __solaris /* not yet */
34# include <sys/sendfile.h>
35# else
36# error sendfile support requested but not available
37# endif 80#endif
38#endif
39
40/* number of seconds after which idle threads exit */
41#define IDLE_TIMEOUT 10
42
43/* used for struct dirent, AIX doesn't provide it */
44#ifndef NAME_MAX
45# define NAME_MAX 4096
46#endif
47
48/* buffer size for various temporary buffers */
49#define AIO_BUFSIZE 65536
50 81
51/* use NV for 32 bit perls as it allows larger offsets */ 82/* use NV for 32 bit perls as it allows larger offsets */
52#if IVSIZE >= 8 83#if IVSIZE >= 8
84# define VAL64 IV
53# define SvVAL64 SvIV 85# define SvVAL64 SvIV
86# define newSVval64 newSViv
54#else 87#else
88# define VAL64 NV
55# define SvVAL64 SvNV 89# define SvVAL64 SvNV
90# define newSVval64 newSVnv
56#endif 91#endif
57 92
58#define dBUF \ 93/*****************************************************************************/
59 char *aio_buf; \ 94
60 LOCK (wrklock); \ 95#if __GNUC__ >= 3
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 96# define expect(expr,value) __builtin_expect ((expr),(value))
62 UNLOCK (wrklock); \ 97#else
63 if (!aio_buf) \ 98# define expect(expr,value) (expr)
64 return -1; 99#endif
100
101#define expect_false(expr) expect ((expr) != 0, 0)
102#define expect_true(expr) expect ((expr) != 0, 1)
103
104/*****************************************************************************/
65 105
66typedef SV SV8; /* byte-sv, used for argument-checking */ 106typedef SV SV8; /* byte-sv, used for argument-checking */
107typedef int aio_rfd; /* read file desriptor */
108typedef int aio_wfd; /* write file descriptor */
109
110static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
111
112#define EIO_REQ_MEMBERS \
113 SV *callback; \
114 SV *sv1, *sv2; \
115 SV *sv3, *sv4; \
116 STRLEN stroffset; \
117 SV *self;
118
119#define EIO_NO_WRAPPERS 1
120
121#include "libeio/config.h"
122#include "libeio/eio.h"
123
124static int req_invoke (eio_req *req);
125#define EIO_FINISH(req) req_invoke (req)
126static void req_destroy (eio_req *grp);
127#define EIO_DESTROY(req) req_destroy (req)
128
129#include "libeio/eio.c"
130
131/* Linux/others */
132#ifndef O_ASYNC
133# define O_ASYNC 0
134#endif
135#ifndef O_DIRECT
136# define O_DIRECT 0
137#endif
138#ifndef O_NOATIME
139# define O_NOATIME 0
140#endif
141
142/* POSIX */
143#ifndef O_CLOEXEC
144# define O_CLOEXEC 0
145#endif
146#ifndef O_NOFOLLOW
147# define O_NOFOLLOW 0
148#endif
149#ifndef O_NOCTTY
150# define O_NOCTTY 0
151#endif
152#ifndef O_NONBLOCK
153# define O_NONBLOCK 0
154#endif
155#ifndef O_EXEC
156# define O_EXEC 0
157#endif
158#ifndef O_SEARCH
159# define O_SEARCH 0
160#endif
161#ifndef O_DIRECTORY
162# define O_DIRECTORY 0
163#endif
164#ifndef O_DSYNC
165# define O_DSYNC 0
166#endif
167#ifndef O_RSYNC
168# define O_RSYNC 0
169#endif
170#ifndef O_SYNC
171# define O_SYNC 0
172#endif
173#ifndef O_TTY_INIT
174# define O_TTY_INIT 0
175#endif
176
177#ifndef POSIX_FADV_NORMAL
178# define POSIX_FADV_NORMAL 0
179#endif
180#ifndef POSIX_FADV_SEQUENTIAL
181# define POSIX_FADV_SEQUENTIAL 0
182#endif
183#ifndef POSIX_FADV_RANDOM
184# define POSIX_FADV_RANDOM 0
185#endif
186#ifndef POSIX_FADV_NOREUSE
187# define POSIX_FADV_NOREUSE 0
188#endif
189#ifndef POSIX_FADV_WILLNEED
190# define POSIX_FADV_WILLNEED 0
191#endif
192#ifndef POSIX_FADV_DONTNEED
193# define POSIX_FADV_DONTNEED 0
194#endif
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#ifndef POSIX_MADV_NORMAL
201# define POSIX_MADV_NORMAL 0
202#endif
203#ifndef POSIX_MADV_SEQUENTIAL
204# define POSIX_MADV_SEQUENTIAL 0
205#endif
206#ifndef POSIX_MADV_RANDOM
207# define POSIX_MADV_RANDOM 0
208#endif
209#ifndef POSIX_MADV_WILLNEED
210# define POSIX_MADV_WILLNEED 0
211#endif
212#ifndef POSIX_MADV_DONTNEED
213# define POSIX_MADV_DONTNEED 0
214#endif
215
216#if !HAVE_POSIX_MADVISE
217# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218#endif
219
220#ifndef PROT_NONE
221# define PROT_NONE 0
222#endif
223#ifndef PROT_READ
224# define PROT_READ 0
225#endif
226#ifndef PROT_WRITE
227# define PROT_READ 0
228#endif
229#ifndef PROT_EXEC
230# define PROT_EXEC 0
231#endif
232
233#ifndef ST_RDONLY
234# define ST_RDONLY 0
235#endif
236#ifndef ST_NOSUID
237# define ST_NOSUID 0
238#endif
239#ifndef ST_NODEV
240# define ST_NODEV 0
241#endif
242#ifndef ST_NOEXEC
243# define ST_NOEXEC 0
244#endif
245#ifndef ST_SYNCHRONOUS
246# define ST_SYNCHRONOUS 0
247#endif
248#ifndef ST_MANDLOCK
249# define ST_MANDLOCK 0
250#endif
251#ifndef ST_WRITE
252# define ST_WRITE 0
253#endif
254#ifndef ST_APPEND
255# define ST_APPEND 0
256#endif
257#ifndef ST_IMMUTABLE
258# define ST_IMMUTABLE 0
259#endif
260#ifndef ST_NOATIME
261# define ST_NOATIME 0
262#endif
263#ifndef ST_NODIRATIME
264# define ST_NODIRATIME 0
265#endif
266#ifndef ST_RELATIME
267# define ST_RELATIME 0
268#endif
269
270#ifndef S_IFIFO
271# define S_IFIFO 0
272#endif
273#ifndef S_IFCHR
274# define S_IFCHR 0
275#endif
276#ifndef S_IFBLK
277# define S_IFBLK 0
278#endif
279#ifndef S_IFLNK
280# define S_IFLNK 0
281#endif
282#ifndef S_IFREG
283# define S_IFREG 0
284#endif
285#ifndef S_IFDIR
286# define S_IFDIR 0
287#endif
288#ifndef S_IFWHT
289# define S_IFWHT 0
290#endif
291#ifndef S_IFSOCK
292# define S_IFSOCK 0
293#endif
294
295#ifndef MAP_ANONYMOUS
296# ifdef MAP_ANON
297# define MAP_ANONYMOUS MAP_ANON
298# else
299# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300# endif
301#endif
302#ifndef MAP_HUGETLB
303# define MAP_HUGETLB 0
304#endif
305#ifndef MAP_LOCKED
306# define MAP_LOCKED 0
307#endif
308#ifndef MAP_NORESERVE
309# define MAP_NORESERVE 0
310#endif
311#ifndef MAP_POPULATE
312# define MAP_POPULATE 0
313#endif
314#ifndef MAP_NONBLOCK
315# define MAP_NONBLOCK 0
316#endif
317
318#ifndef makedev
319# define makedev(maj,min) (((maj) << 8) | (min))
320#endif
321#ifndef major
322# define major(dev) ((dev) >> 8)
323#endif
324#ifndef minor
325# define minor(dev) ((dev) & 0xff)
326#endif
327
328#ifndef PAGESIZE
329# define PAGESIZE sysconf (_SC_PAGESIZE)
330#endif
67 331
68enum { 332enum {
69 REQ_QUIT, 333 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
70 REQ_OPEN, REQ_CLOSE,
71 REQ_READ, REQ_WRITE,
72 REQ_READAHEAD, REQ_SENDFILE,
73 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
74 REQ_UTIME, REQ_FUTIME,
75 REQ_CHMOD, REQ_FCHMOD,
76 REQ_CHOWN, REQ_FCHOWN,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79 REQ_MKNOD, REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83}; 334};
84 335
85#define AIO_REQ_KLASS "IO::AIO::REQ"
86#define AIO_GRP_KLASS "IO::AIO::GRP"
87
88typedef struct aio_cb
89{
90 struct aio_cb *volatile next;
91
92 SV *callback;
93 SV *sv1, *sv2;
94 void *ptr1, *ptr2;
95 off_t offs;
96 size_t size;
97 ssize_t result;
98 double nv1, nv2;
99
100 STRLEN stroffset;
101 int type;
102 int int1, int2, int3;
103 int errorno;
104 mode_t mode; /* open */
105
106 unsigned char flags;
107 unsigned char pri;
108
109 SV *self; /* the perl counterpart of this request, if any */
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
111} aio_cb;
112
113enum {
114 FLAG_CANCELLED = 0x01, /* request was cancelled */
115 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
117};
118
119typedef aio_cb *aio_req; 336typedef eio_req *aio_req;
120typedef aio_cb *aio_req_ornot; 337typedef eio_req *aio_req_ornot;
338typedef eio_wd aio_wd;
121 339
122enum { 340static SV *on_next_submit;
123 PRI_MIN = -4, 341static int next_pri = EIO_PRI_DEFAULT;
124 PRI_MAX = 4, 342static int max_outstanding;
125 343
126 DEFAULT_PRI = 0, 344static s_epipe respipe;
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130 345
131#define AIO_TICKS ((1000000 + 1023) >> 10)
132
133static unsigned int max_poll_time = 0;
134static unsigned int max_poll_reqs = 0;
135
136/* calculcate time difference in ~1/AIO_TICKS of a second */
137static int tvdiff (struct timeval *tv1, struct timeval *tv2)
138{
139 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
140 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
141}
142
143static thread_t main_tid;
144static int main_sig;
145static int block_sig_level;
146
147void block_sig ()
148{
149 sigset_t ss;
150
151 if (block_sig_level++)
152 return;
153
154 if (!main_sig)
155 return;
156
157 sigemptyset (&ss);
158 sigaddset (&ss, main_sig);
159 pthread_sigmask (SIG_BLOCK, &ss, 0);
160}
161
162void unblock_sig ()
163{
164 sigset_t ss;
165
166 if (--block_sig_level)
167 return;
168
169 if (!main_sig)
170 return;
171
172 sigemptyset (&ss);
173 sigaddset (&ss, main_sig);
174 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
175}
176
177static int next_pri = DEFAULT_PRI + PRI_BIAS;
178
179static unsigned int started, idle, wanted;
180
181/* worker threads management */
182static mutex_t wrklock = MUTEX_INIT;
183
184typedef struct worker {
185 /* locked by wrklock */
186 struct worker *prev, *next;
187
188 thread_t tid;
189
190 /* locked by reslock, reqlock or wrklock */
191 aio_req req; /* currently processed request */
192 void *dbuf;
193 DIR *dirp;
194} worker;
195
196static worker wrk_first = { &wrk_first, &wrk_first, 0 };
197
198static void worker_clear (worker *wrk)
199{
200 if (wrk->dirp)
201 {
202 closedir (wrk->dirp);
203 wrk->dirp = 0;
204 }
205
206 if (wrk->dbuf)
207 {
208 free (wrk->dbuf);
209 wrk->dbuf = 0;
210 }
211}
212
213static void worker_free (worker *wrk)
214{
215 wrk->next->prev = wrk->prev;
216 wrk->prev->next = wrk->next;
217
218 free (wrk);
219}
220
221static volatile unsigned int nreqs, nready, npending;
222static volatile unsigned int max_idle = 4;
223static volatile unsigned int max_outstanding = 0xffffffff;
224static int respipe [2];
225
226static mutex_t reslock = MUTEX_INIT;
227static mutex_t reqlock = MUTEX_INIT;
228static cond_t reqwait = COND_INIT;
229
230#if WORDACCESS_UNSAFE
231
232static unsigned int get_nready ()
233{
234 unsigned int retval;
235
236 LOCK (reqlock);
237 retval = nready;
238 UNLOCK (reqlock);
239
240 return retval;
241}
242
243static unsigned int get_npending ()
244{
245 unsigned int retval;
246
247 LOCK (reslock);
248 retval = npending;
249 UNLOCK (reslock);
250
251 return retval;
252}
253
254static unsigned int get_nthreads ()
255{
256 unsigned int retval;
257
258 LOCK (wrklock);
259 retval = started;
260 UNLOCK (wrklock);
261
262 return retval;
263}
264
265#else
266
267# define get_nready() nready
268# define get_npending() npending
269# define get_nthreads() started
270
271#endif
272
273/*
274 * a somewhat faster data structure might be nice, but
275 * with 8 priorities this actually needs <20 insns
276 * per shift, the most expensive operation.
277 */
278typedef struct {
279 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
280 int size;
281} reqq;
282
283static reqq req_queue;
284static reqq res_queue;
285
286int reqq_push (reqq *q, aio_req req)
287{
288 int pri = req->pri;
289 req->next = 0;
290
291 if (q->qe[pri])
292 {
293 q->qe[pri]->next = req;
294 q->qe[pri] = req;
295 }
296 else
297 q->qe[pri] = q->qs[pri] = req;
298
299 return q->size++;
300}
301
302aio_req reqq_shift (reqq *q)
303{
304 int pri;
305
306 if (!q->size)
307 return 0;
308
309 --q->size;
310
311 for (pri = NUM_PRI; pri--; )
312 {
313 aio_req req = q->qs[pri];
314
315 if (req)
316 {
317 if (!(q->qs[pri] = req->next))
318 q->qe[pri] = 0;
319
320 return req;
321 }
322 }
323
324 abort ();
325}
326
327static int poll_cb ();
328static int req_invoke (aio_req req);
329static void req_destroy (aio_req req); 346static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 347static void req_cancel (aio_req req);
331 348
349static void
350want_poll (void)
351{
352 /* write a dummy byte to the pipe so fh becomes ready */
353 s_epipe_signal (&respipe);
354}
355
356static void
357done_poll (void)
358{
359 /* read any signals sent by the worker threads */
360 s_epipe_drain (&respipe);
361}
362
332/* must be called at most once */ 363/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 364static SV *
365req_sv (aio_req req, HV *stash)
334{ 366{
335 if (!req->self) 367 if (!req->self)
336 { 368 {
337 req->self = (SV *)newHV (); 369 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 370 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 371 }
340 372
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 373 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
342} 374}
343 375
344static aio_req SvAIO_REQ (SV *sv) 376static SV *
377newSVaio_wd (aio_wd wd)
378{
379 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
380}
381
382static aio_req
383SvAIO_REQ (SV *sv)
345{ 384{
346 MAGIC *mg; 385 MAGIC *mg;
347 386
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 387 if (!SvROK (sv)
388 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
389 || (SvSTASH (SvRV (sv)) != aio_grp_stash
390 && SvSTASH (SvRV (sv)) != aio_req_stash
391 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 392 croak ("object of class IO::AIO::REQ expected");
350 393
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 395
353 return mg ? (aio_req)mg->mg_ptr : 0; 396 return mg ? (aio_req)mg->mg_ptr : 0;
354} 397}
355 398
399static aio_wd
400SvAIO_WD (SV *sv)
401{
402 if (!SvROK (sv)
403 || SvTYPE (SvRV (sv)) != SVt_PVMG
404 || SvSTASH (SvRV (sv)) != aio_wd_stash)
405 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406
407 return (aio_wd)(long)SvIVX (SvRV (sv));
408}
409
410static void
356static void aio_grp_feed (aio_req grp) 411aio_grp_feed (aio_req grp)
357{ 412{
358 block_sig (); 413 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 414 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 415 dSP;
367 416
368 ENTER; 417 ENTER;
369 SAVETMPS; 418 SAVETMPS;
370 PUSHMARK (SP); 419 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 420 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 421 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 422 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 423 SPAGAIN;
375 FREETMPS; 424 FREETMPS;
376 LEAVE; 425 LEAVE;
377 }
378
379 /* stop if no progress has been made */
380 if (old_len == grp->size)
381 {
382 SvREFCNT_dec (grp->sv2);
383 grp->sv2 = 0;
384 break;
385 }
386 } 426 }
387
388 unblock_sig ();
389} 427}
390 428
391static void aio_grp_dec (aio_req grp) 429static void
430req_submit (eio_req *req)
392{ 431{
393 --grp->size; 432 eio_submit (req);
394 433
395 /* call feeder, if applicable */ 434 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 435 {
401 block_sig (); 436 dSP;
437 SV *cb = sv_2mortal (on_next_submit);
402 438
403 if (!req_invoke (grp)) 439 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 440
410 req_destroy (grp); 441 PUSHMARK (SP);
411 unblock_sig (); 442 PUTBACK;
443 call_sv (cb, G_DISCARD | G_EVAL);
412 } 444 }
413} 445}
414 446
447static int
415static int req_invoke (aio_req req) 448req_invoke (eio_req *req)
416{ 449{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 450 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 451 SvREADONLY_off (req->sv2);
421 452
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 453 if (!EIO_CANCELLED (req) && req->callback)
423 { 454 {
455 dSP;
456 static SV *sv_result_cache; /* caches the result integer SV */
457 SV *sv_result;
458
424 ENTER; 459 ENTER;
425 SAVETMPS; 460 SAVETMPS;
426 PUSHMARK (SP); 461 PUSHMARK (SP);
427 EXTEND (SP, 1); 462 EXTEND (SP, 1);
428 463
464 /* do not recreate the result IV from scratch each time */
465 if (expect_true (sv_result_cache))
466 {
467 sv_result = sv_result_cache; sv_result_cache = 0;
468 SvIV_set (sv_result, req->result);
469 SvIOK_only (sv_result);
470 }
471 else
472 {
473 sv_result = newSViv (req->result);
474 SvREADONLY_on (sv_result);
475 }
476
429 switch (req->type) 477 switch (req->type)
430 { 478 {
479 case EIO_WD_OPEN:
480 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
481 break;
482
431 case REQ_READDIR: 483 case EIO_READDIR:
432 { 484 {
433 SV *rv = &PL_sv_undef; 485 SV *rv = &PL_sv_undef;
434 486
435 if (req->result >= 0) 487 if (req->result >= 0)
436 { 488 {
437 int i; 489 int i;
438 char *buf = req->ptr2; 490 char *names = (char *)req->ptr2;
491 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 492 AV *av = newAV ();
440 493
441 av_extend (av, req->result - 1); 494 av_extend (av, req->result - 1);
442 495
443 for (i = 0; i < req->result; ++i) 496 for (i = 0; i < req->result; ++i)
444 { 497 {
445 SV *sv = newSVpv (buf, 0); 498 if (req->int1 & EIO_READDIR_DENTS)
499 {
500 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 501
502 if (req->int1 & EIO_READDIR_CUSTOM2)
503 {
504 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
505 AV *avent = newAV ();
506
507 av_extend (avent, 2);
508
509 if (!sv_type [ent->type])
510 {
511 sv_type [ent->type] = newSViv (ent->type);
512 SvREADONLY_on (sv_type [ent->type]);
513 }
514
515 av_store (avent, 0, namesv);
516 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
517 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
518
519 av_store (av, i, newRV_noinc ((SV *)avent));
520 }
521 else
447 av_store (av, i, sv); 522 av_store (av, i, namesv);
523
524 ++ent;
525 }
526 else
527 {
528 SV *name = newSVpv (names, 0);
529 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 530 names += SvCUR (name) + 1;
531 }
449 } 532 }
450 533
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 534 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 535 }
453 536
454 PUSHs (rv); 537 PUSHs (rv);
538
539 if (req->int1 & EIO_READDIR_CUSTOM1)
540 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 541 }
456 break; 542 break;
457 543
458 case REQ_OPEN: 544 case EIO_OPEN:
459 { 545 {
460 /* convert fd to fh */ 546 /* convert fd to fh */
461 SV *fh; 547 SV *fh = &PL_sv_undef;
462 548
463 PUSHs (sv_2mortal (newSViv (req->result))); 549 if (req->result >= 0)
464 PUTBACK; 550 {
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 551 GV *gv = (GV *)sv_newmortal ();
466 SPAGAIN; 552 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
553 char sym [64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
557 gv_init (gv, aio_stash, sym, symlen, 0);
467 558
468 fh = POPs; 559 symlen = snprintf (
469 PUSHMARK (SP); 560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 (int)req->result
565 );
566
567 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
568 fh = (SV *)gv;
569 }
570
470 XPUSHs (fh); 571 PUSHs (fh);
471 } 572 }
472 break; 573 break;
473 574
575 case EIO_STATVFS:
576 case EIO_FSTATVFS:
577 {
578 SV *rv = &PL_sv_undef;
579
580#ifndef _WIN32
581 if (req->result >= 0)
582 {
583 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584 HV *hv = newHV ();
585
586 rv = sv_2mortal (newRV_noinc ((SV *)hv));
587
588 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
589 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
590 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
591 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
592 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
593 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
594 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
595 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
596 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
597 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
598 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599 }
600#endif
601
602 PUSHs (rv);
603 }
604
605 break;
606
474 case REQ_GROUP: 607 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 608 req->int1 = 2; /* mark group as finished */
476 609
477 if (req->sv1) 610 if (req->sv1)
478 { 611 {
479 int i; 612 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 616 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 617 PUSHs (*av_fetch (av, i, 0));
485 } 618 }
486 break; 619 break;
487 620
488 case REQ_NOP: 621 case EIO_NOP:
489 case REQ_BUSY: 622 case EIO_BUSY:
490 break; 623 break;
491 624
492 case REQ_READLINK: 625 case EIO_READLINK:
626 case EIO_REALPATH:
493 if (req->result > 0) 627 if (req->result > 0)
494 { 628 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
495 SvCUR_set (req->sv2, req->result);
496 *SvEND (req->sv2) = 0;
497 PUSHs (req->sv2);
498 }
499 break; 629 break;
500 630
501 case REQ_STAT: 631 case EIO_STAT:
502 case REQ_LSTAT: 632 case EIO_LSTAT:
503 case REQ_FSTAT: 633 case EIO_FSTAT:
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 634 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
635
505 PL_laststatval = req->result; 636 if (!(PL_laststatval = req->result))
637 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
506 PL_statcache = *(Stat_t *)(req->ptr2); 638 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
507 PUSHs (sv_2mortal (newSViv (req->result))); 639
640 PUSHs (sv_result);
508 break; 641 break;
509 642
510 case REQ_READ: 643 case EIO_READ:
644 {
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 645 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
512 *SvEND (req->sv2) = 0; 646 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result))); 647 SvPOK_only (req->sv2);
648 SvSETMAGIC (req->sv2);
649 PUSHs (sv_result);
650 }
514 break; 651 break;
515 652
653 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
654 if (req->result > 0)
655 SvIV_set (sv_result, 0);
656 /* FALLTHROUGH */
657
516 default: 658 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 659 PUSHs (sv_result);
518 break; 660 break;
519 } 661 }
520 662
521 errno = req->errorno; 663 errno = req->errorno;
522 664
523 PUTBACK; 665 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 666 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 667 SPAGAIN;
668
669 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
670 SvREFCNT_dec (sv_result);
671 else
672 sv_result_cache = sv_result;
526 673
527 FREETMPS; 674 FREETMPS;
528 LEAVE; 675 LEAVE;
676
677 PUTBACK;
529 } 678 }
530 679
531 if (req->grp)
532 {
533 aio_req grp = req->grp;
534
535 /* unlink request */
536 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
537 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
538
539 if (grp->grp_first == req)
540 grp->grp_first = req->grp_next;
541
542 aio_grp_dec (grp);
543 }
544
545 return !SvTRUE (ERRSV); 680 return !!SvTRUE (ERRSV);
546} 681}
547 682
683static void
548static void req_destroy (aio_req req) 684req_destroy (aio_req req)
549{ 685{
550 if (req->self) 686 if (req->self)
551 { 687 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 688 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 689 SvREFCNT_dec (req->self);
554 } 690 }
555 691
556 SvREFCNT_dec (req->sv1); 692 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 693 SvREFCNT_dec (req->sv2);
694 SvREFCNT_dec (req->sv3);
695 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 696 SvREFCNT_dec (req->callback);
559 697
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 698 free (req);
564} 699}
565 700
701static void
566static void req_cancel_subs (aio_req grp) 702req_cancel_subs (aio_req grp)
567{ 703{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 704 if (grp->type != EIO_GROUP)
571 return; 705 return;
572 706
573 SvREFCNT_dec (grp->sv2); 707 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 708 grp->sv2 = 0;
575 709
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 710 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 711}
579 712
580static void req_cancel (aio_req req) 713static void ecb_cold
714create_respipe (void)
581{ 715{
582 req->flags |= FLAG_CANCELLED; 716 if (s_epipe_renew (&respipe))
583 717 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 718}
586 719
587static void *aio_proc (void *arg); 720static void
588 721poll_wait (void)
589static void start_thread (void)
590{ 722{
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 LOCK (wrklock);
597
598 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
599 {
600 wrk->prev = &wrk_first;
601 wrk->next = wrk_first.next;
602 wrk_first.next->prev = wrk;
603 wrk_first.next = wrk;
604 ++started;
605 }
606 else
607 free (wrk);
608
609 UNLOCK (wrklock);
610}
611
612static void maybe_start_thread ()
613{
614 if (get_nthreads () >= wanted)
615 return;
616
617 /* todo: maybe use idle here, but might be less exact */
618 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
619 return;
620
621 start_thread ();
622}
623
624static void req_send (aio_req req)
625{
626 block_sig ();
627
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 COND_SIGNAL (reqwait);
634 UNLOCK (reqlock);
635
636 unblock_sig ();
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 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) 723 while (eio_nreqs ())
687 { 724 {
688 int size; 725 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 726
727 X_LOCK (reslock);
690 size = res_queue.size; 728 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 729 X_UNLOCK (reslock);
692 730
693 if (size) 731 if (size)
694 return; 732 return;
695 733
696 maybe_start_thread (); 734 etp_maybe_start_thread ();
697 735
698 FD_ZERO(&rfd); 736 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 737 }
703} 738}
704 739
705static int poll_cb () 740static int
741poll_cb (void)
706{ 742{
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 block_sig ();
718
719 for (;;) 743 for (;;)
720 { 744 {
721 for (;;) 745 int res = eio_poll ();
746
747 if (res > 0)
748 croak (0);
749
750 if (!max_outstanding || max_outstanding > eio_nreqs ())
751 return res;
752
753 poll_wait ();
754 }
755}
756
757static void ecb_cold
758reinit (void)
759{
760 create_respipe ();
761
762 if (eio_init (want_poll, done_poll) < 0)
763 croak ("IO::AIO: unable to initialise eio library");
764}
765
766/*****************************************************************************/
767
768#if !_POSIX_MAPPED_FILES
769# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
770# define munmap(addr,length) (errno = ENOSYS, -1)
771#endif
772
773#if !_POSIX_MEMORY_PROTECTION
774# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
775# define PROT_NONE 0
776# define PROT_WRITE 0
777# define MAP_PRIVATE 0
778# define MAP_SHARED 0
779# define MAP_FIXED 0
780#endif
781
782#define MMAP_MAGIC PERL_MAGIC_ext
783
784static int ecb_cold
785mmap_free (pTHX_ SV *sv, MAGIC *mg)
786{
787 int old_errno = errno;
788 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
789 errno = old_errno;
790
791 mg->mg_obj = 0; /* just in case */
792
793 SvREADONLY_off (sv);
794
795 if (SvPVX (sv) != mg->mg_ptr)
796 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
797
798 SvCUR_set (sv, 0);
799 SvPVX (sv) = 0;
800 SvOK_off (sv);
801
802 return 0;
803}
804
805static MGVTBL mmap_vtbl = {
806 0, 0, 0, 0, mmap_free
807};
808
809/*****************************************************************************/
810
811static SV *
812get_cb (SV *cb_sv)
813{
814 SvGETMAGIC (cb_sv);
815 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
816}
817
818static aio_req ecb_noinline
819dreq (SV *callback)
820{
821 SV *cb_cv;
822 aio_req req;
823 int req_pri = next_pri;
824 next_pri = EIO_PRI_DEFAULT;
825
826 cb_cv = get_cb (callback);
827
828 req = calloc (sizeof (*req), 1);
829 if (!req)
830 croak ("out of memory during eio_req allocation");
831
832 req->callback = SvREFCNT_inc (cb_cv);
833 req->pri = req_pri;
834
835 return req;
836}
837
838#define dREQ \
839 aio_req req = dreq (callback); \
840
841#define REQ_SEND \
842 PUTBACK; \
843 req_submit (req); \
844 SPAGAIN; \
845 \
846 if (GIMME_V != G_VOID) \
847 XPUSHs (req_sv (req, aio_req_stash));
848
849ecb_inline void
850req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
851{
852 if (expect_false (SvROK (path)))
853 {
854 SV *rv = SvRV (path);
855 SV *wdob;
856
857 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 858 {
723 maybe_start_thread (); 859 path = AvARRAY (rv)[1];
860 wdob = AvARRAY (rv)[0];
724 861
725 LOCK (reslock); 862 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 863 {
730 --npending; 864 *wd = SvAIO_WD (wdob);
731 865 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
732 if (!res_queue.size)
733 {
734 /* read any signals sent by the worker threads */
735 char buf [4];
736 while (read (respipe [0], buf, 4) == 4)
737 ;
738 }
739 }
740
741 UNLOCK (reslock);
742
743 if (!req)
744 break;
745
746 --nreqs;
747
748 if (req->type == REQ_GROUP && req->size)
749 {
750 req->int1 = 1; /* mark request as delayed */
751 continue;
752 } 866 }
753 else 867 else
754 { 868 *wd = EIO_INVALID_WD;
755 if (!req_invoke (req))
756 {
757 req_destroy (req);
758 unblock_sig ();
759 croak (0);
760 }
761
762 count++;
763 }
764
765 req_destroy (req);
766
767 if (maxreqs && !--maxreqs)
768 break;
769
770 if (max_poll_time)
771 {
772 gettimeofday (&tv_now, 0);
773
774 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
775 break;
776 }
777 } 869 }
870 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
871 {
872 *wd = (aio_wd)(long)SvIVX (rv);
873 *wdsv = SvREFCNT_inc_NN (rv);
874 *ptr = ".";
875 return; /* path set to "." */
876 }
877 else
878 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
879 }
778 880
779 if (nreqs <= max_outstanding) 881 *pathsv = newSVsv (path);
882 *ptr = SvPVbyte_nolen (*pathsv);
883}
884
885static void ecb_noinline
886req_set_path1 (aio_req req, SV *path)
887{
888 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
889}
890
891static void ecb_noinline
892req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
893{
894 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
895
896 switch (SvTYPE (rv))
897 {
898 case SVt_PVIO:
899 case SVt_PVLV:
900 case SVt_PVGV:
901 req->type = type_fh;
902 req->sv1 = newSVsv (fh_or_path);
903 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 904 break;
781 905
782 poll_wait (); 906 default:
783 907 req->type = type_path;
784 ++maxreqs; 908 req_set_path1 (req, fh_or_path);
909 break;
785 } 910 }
786
787 unblock_sig ();
788 return count;
789} 911}
790 912
791static void create_pipe () 913XS(boot_IO__AIO) ecb_cold;
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795 914
796 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
797 croak ("cannot set result pipe to nonblocking mode");
798
799 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
800 croak ("cannot set result pipe to nonblocking mode");
801}
802
803/*****************************************************************************/
804/* work around various missing functions */
805
806#if !HAVE_PREADWRITE
807# define pread aio_pread
808# define pwrite aio_pwrite
809
810/*
811 * make our pread/pwrite safe against themselves, but not against
812 * normal read/write by using a mutex. slows down execution a lot,
813 * but that's your problem, not mine.
814 */
815static mutex_t preadwritelock = MUTEX_INIT;
816
817static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
818{
819 ssize_t res;
820 off_t ooffset;
821
822 LOCK (preadwritelock);
823 ooffset = lseek (fd, 0, SEEK_CUR);
824 lseek (fd, offset, SEEK_SET);
825 res = read (fd, buf, count);
826 lseek (fd, ooffset, SEEK_SET);
827 UNLOCK (preadwritelock);
828
829 return res;
830}
831
832static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
833{
834 ssize_t res;
835 off_t ooffset;
836
837 LOCK (preadwritelock);
838 ooffset = lseek (fd, 0, SEEK_CUR);
839 lseek (fd, offset, SEEK_SET);
840 res = write (fd, buf, count);
841 lseek (fd, offset, SEEK_SET);
842 UNLOCK (preadwritelock);
843
844 return res;
845}
846#endif
847
848#ifndef HAVE_FUTIMES
849
850# define utimes(path,times) aio_utimes (path, times)
851# define futimes(fd,times) aio_futimes (fd, times)
852
853int aio_utimes (const char *filename, const struct timeval times[2])
854{
855 if (times)
856 {
857 struct utimbuf buf;
858
859 buf.actime = times[0].tv_sec;
860 buf.modtime = times[1].tv_sec;
861
862 return utime (filename, &buf);
863 }
864 else
865 return utime (filename, 0);
866}
867
868int aio_futimes (int fd, const struct timeval tv[2])
869{
870 errno = ENOSYS;
871 return -1;
872}
873
874#endif
875
876#if !HAVE_FDATASYNC
877# define fdatasync fsync
878#endif
879
880#if !HAVE_READAHEAD
881# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
882
883static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
884{
885 dBUF;
886
887 while (count > 0)
888 {
889 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
890
891 pread (fd, aio_buf, len, offset);
892 offset += len;
893 count -= len;
894 }
895
896 errno = 0;
897}
898
899#endif
900
901#if !HAVE_READDIR_R
902# define readdir_r aio_readdir_r
903
904static mutex_t readdirlock = MUTEX_INIT;
905
906static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
907{
908 struct dirent *e;
909 int errorno;
910
911 LOCK (readdirlock);
912
913 e = readdir (dirp);
914 errorno = errno;
915
916 if (e)
917 {
918 *res = ent;
919 strcpy (ent->d_name, e->d_name);
920 }
921 else
922 *res = 0;
923
924 UNLOCK (readdirlock);
925
926 errno = errorno;
927 return e ? 0 : -1;
928}
929#endif
930
931/* sendfile always needs emulation */
932static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
933{
934 ssize_t res;
935
936 if (!count)
937 return 0;
938
939#if HAVE_SENDFILE
940# if __linux
941 res = sendfile (ofd, ifd, &offset, count);
942
943# elif __freebsd
944 /*
945 * Of course, the freebsd sendfile is a dire hack with no thoughts
946 * wasted on making it similar to other I/O functions.
947 */
948 {
949 off_t sbytes;
950 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
951
952 if (res < 0 && sbytes)
953 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
954 res = sbytes;
955 }
956
957# elif __hpux
958 res = sendfile (ofd, ifd, offset, count, 0, 0);
959
960# elif __solaris
961 {
962 struct sendfilevec vec;
963 size_t sbytes;
964
965 vec.sfv_fd = ifd;
966 vec.sfv_flag = 0;
967 vec.sfv_off = offset;
968 vec.sfv_len = count;
969
970 res = sendfilev (ofd, &vec, 1, &sbytes);
971
972 if (res < 0 && sbytes)
973 res = sbytes;
974 }
975
976# endif
977#else
978 res = -1;
979 errno = ENOSYS;
980#endif
981
982 if (res < 0
983 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
984#if __solaris
985 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
986#endif
987 )
988 )
989 {
990 /* emulate sendfile. this is a major pain in the ass */
991 dBUF;
992
993 res = 0;
994
995 while (count)
996 {
997 ssize_t cnt;
998
999 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1000
1001 if (cnt <= 0)
1002 {
1003 if (cnt && !res) res = -1;
1004 break;
1005 }
1006
1007 cnt = write (ofd, aio_buf, cnt);
1008
1009 if (cnt <= 0)
1010 {
1011 if (cnt && !res) res = -1;
1012 break;
1013 }
1014
1015 offset += cnt;
1016 res += cnt;
1017 count -= cnt;
1018 }
1019 }
1020
1021 return res;
1022}
1023
1024/* read a full directory */
1025static void scandir_ (aio_req req, worker *self)
1026{
1027 DIR *dirp;
1028 union
1029 {
1030 struct dirent d;
1031 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1032 } *u;
1033 struct dirent *entp;
1034 char *name, *names;
1035 int memlen = 4096;
1036 int memofs = 0;
1037 int res = 0;
1038 int errorno;
1039
1040 LOCK (wrklock);
1041 self->dirp = dirp = opendir (req->ptr1);
1042 self->dbuf = u = malloc (sizeof (*u));
1043 req->flags |= FLAG_PTR2_FREE;
1044 req->ptr2 = names = malloc (memlen);
1045 UNLOCK (wrklock);
1046
1047 if (dirp && u && names)
1048 for (;;)
1049 {
1050 errno = 0;
1051 readdir_r (dirp, &u->d, &entp);
1052
1053 if (!entp)
1054 break;
1055
1056 name = entp->d_name;
1057
1058 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1059 {
1060 int len = strlen (name) + 1;
1061
1062 res++;
1063
1064 while (memofs + len > memlen)
1065 {
1066 memlen *= 2;
1067 LOCK (wrklock);
1068 req->ptr2 = names = realloc (names, memlen);
1069 UNLOCK (wrklock);
1070
1071 if (!names)
1072 break;
1073 }
1074
1075 memcpy (names + memofs, name, len);
1076 memofs += len;
1077 }
1078 }
1079
1080 if (errno)
1081 res = -1;
1082
1083 req->result = res;
1084}
1085
1086/*****************************************************************************/
1087
1088static void *aio_proc (void *thr_arg)
1089{
1090 aio_req req;
1091 struct timespec ts;
1092 worker *self = (worker *)thr_arg;
1093
1094 /* try to distribute timeouts somewhat evenly */
1095 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1096 * (1000000000UL / 1024UL);
1097
1098 for (;;)
1099 {
1100 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1101
1102 LOCK (reqlock);
1103
1104 for (;;)
1105 {
1106 self->req = req = reqq_shift (&req_queue);
1107
1108 if (req)
1109 break;
1110
1111 ++idle;
1112
1113 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1114 == ETIMEDOUT)
1115 {
1116 if (idle > max_idle)
1117 {
1118 --idle;
1119 UNLOCK (reqlock);
1120 LOCK (wrklock);
1121 --started;
1122 UNLOCK (wrklock);
1123 goto quit;
1124 }
1125
1126 /* we are allowed to idle, so do so without any timeout */
1127 COND_WAIT (reqwait, reqlock);
1128 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1129 }
1130
1131 --idle;
1132 }
1133
1134 --nready;
1135
1136 UNLOCK (reqlock);
1137
1138 errno = 0; /* strictly unnecessary */
1139
1140 if (!(req->flags & FLAG_CANCELLED))
1141 switch (req->type)
1142 {
1143 case REQ_READ: req->result = req->offs >= 0
1144 ? pread (req->int1, req->ptr1, req->size, req->offs)
1145 : read (req->int1, req->ptr1, req->size); break;
1146 case REQ_WRITE: req->result = req->offs >= 0
1147 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1148 : write (req->int1, req->ptr1, req->size); break;
1149
1150 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1151 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1152
1153 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1154 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1155 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1156
1157 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1158 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1159 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1160 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1161
1162 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1163 case REQ_CLOSE: req->result = close (req->int1); break;
1164 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1165 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1166 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1167 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1168 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1169 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1170 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1171 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1172
1173 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1174 case REQ_FSYNC: req->result = fsync (req->int1); break;
1175 case REQ_READDIR: scandir_ (req, self); break;
1176
1177 case REQ_BUSY:
1178 {
1179 struct timeval tv;
1180
1181 tv.tv_sec = req->nv1;
1182 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1183
1184 req->result = select (0, 0, 0, 0, &tv);
1185 }
1186
1187 case REQ_UTIME:
1188 case REQ_FUTIME:
1189 {
1190 struct timeval tv[2];
1191 struct timeval *times;
1192
1193 if (req->nv1 != -1. || req->nv2 != -1.)
1194 {
1195 tv[0].tv_sec = req->nv1;
1196 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1197 tv[1].tv_sec = req->nv2;
1198 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1199
1200 times = tv;
1201 }
1202 else
1203 times = 0;
1204
1205
1206 req->result = req->type == REQ_FUTIME
1207 ? futimes (req->int1, times)
1208 : utimes (req->ptr1, times);
1209 }
1210
1211 case REQ_GROUP:
1212 case REQ_NOP:
1213 break;
1214
1215 case REQ_QUIT:
1216 goto quit;
1217
1218 default:
1219 req->result = -1;
1220 break;
1221 }
1222
1223 req->errorno = errno;
1224
1225 LOCK (reslock);
1226
1227 ++npending;
1228
1229 if (!reqq_push (&res_queue, req))
1230 {
1231 /* write a dummy byte to the pipe so fh becomes ready */
1232 write (respipe [1], &respipe, 1);
1233
1234 /* optionally signal the main thread asynchronously */
1235 if (main_sig)
1236 pthread_kill (main_tid, main_sig);
1237 }
1238
1239 self->req = 0;
1240 worker_clear (self);
1241
1242 UNLOCK (reslock);
1243 }
1244
1245quit:
1246 LOCK (wrklock);
1247 worker_free (self);
1248 UNLOCK (wrklock);
1249
1250 return 0;
1251}
1252
1253/*****************************************************************************/
1254
1255static void atfork_prepare (void)
1256{
1257 LOCK (wrklock);
1258 LOCK (reqlock);
1259 LOCK (reslock);
1260#if !HAVE_PREADWRITE
1261 LOCK (preadwritelock);
1262#endif
1263#if !HAVE_READDIR_R
1264 LOCK (readdirlock);
1265#endif
1266}
1267
1268static void atfork_parent (void)
1269{
1270#if !HAVE_READDIR_R
1271 UNLOCK (readdirlock);
1272#endif
1273#if !HAVE_PREADWRITE
1274 UNLOCK (preadwritelock);
1275#endif
1276 UNLOCK (reslock);
1277 UNLOCK (reqlock);
1278 UNLOCK (wrklock);
1279}
1280
1281static void atfork_child (void)
1282{
1283 aio_req prv;
1284
1285 while (prv = reqq_shift (&req_queue))
1286 req_destroy (prv);
1287
1288 while (prv = reqq_shift (&res_queue))
1289 req_destroy (prv);
1290
1291 while (wrk_first.next != &wrk_first)
1292 {
1293 worker *wrk = wrk_first.next;
1294
1295 if (wrk->req)
1296 req_destroy (wrk->req);
1297
1298 worker_clear (wrk);
1299 worker_free (wrk);
1300 }
1301
1302 started = 0;
1303 idle = 0;
1304 nreqs = 0;
1305 nready = 0;
1306 npending = 0;
1307
1308 close (respipe [0]);
1309 close (respipe [1]);
1310 create_pipe ();
1311
1312 atfork_parent ();
1313}
1314
1315#define dREQ \
1316 aio_req req; \
1317 int req_pri = next_pri; \
1318 next_pri = DEFAULT_PRI + PRI_BIAS; \
1319 \
1320 if (SvOK (callback) && !SvROK (callback)) \
1321 croak ("callback must be undef or of reference type"); \
1322 \
1323 Newz (0, req, 1, aio_cb); \
1324 if (!req) \
1325 croak ("out of memory during aio_req allocation"); \
1326 \
1327 req->callback = newSVsv (callback); \
1328 req->pri = req_pri
1329
1330#define REQ_SEND \
1331 req_send (req); \
1332 \
1333 if (GIMME_V != G_VOID) \
1334 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1335
1336MODULE = IO::AIO PACKAGE = IO::AIO 915MODULE = IO::AIO PACKAGE = IO::AIO
1337 916
1338PROTOTYPES: ENABLE 917PROTOTYPES: ENABLE
1339 918
1340BOOT: 919BOOT:
1341{ 920{
921 static const struct {
922 const char *name;
923 IV iv;
924 } *civ, const_iv[] = {
925# define const_niv(name, value) { # name, (IV) value },
926# define const_iv(name) { # name, (IV) name },
927# define const_eio(name) { # name, (IV) EIO_ ## name },
928 const_iv (EXDEV)
929 const_iv (ENOSYS)
930 const_iv (O_RDONLY)
931 const_iv (O_WRONLY)
932 const_iv (O_RDWR)
933 const_iv (O_CREAT)
934 const_iv (O_TRUNC)
935 const_iv (O_EXCL)
936 const_iv (O_APPEND)
937
938 const_iv (O_ASYNC)
939 const_iv (O_DIRECT)
940 const_iv (O_NOATIME)
941
942 const_iv (O_CLOEXEC)
943 const_iv (O_NOCTTY)
944 const_iv (O_NOFOLLOW)
945 const_iv (O_NONBLOCK)
946 const_iv (O_EXEC)
947 const_iv (O_SEARCH)
948 const_iv (O_DIRECTORY)
949 const_iv (O_DSYNC)
950 const_iv (O_RSYNC)
951 const_iv (O_SYNC)
952 const_iv (O_TTY_INIT)
953
954 const_iv (S_IFIFO)
955 const_iv (S_IFCHR)
956 const_iv (S_IFBLK)
957 const_iv (S_IFLNK)
958 const_iv (S_IFREG)
959 const_iv (S_IFDIR)
960 const_iv (S_IFWHT)
961 const_iv (S_IFSOCK)
962 const_iv (S_IFMT)
963
964 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
965 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
966 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
967 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
968 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
969 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
970
971 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
972 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
973 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
974 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
975 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
976
977 const_iv (ST_RDONLY)
978 const_iv (ST_NOSUID)
979 const_iv (ST_NODEV)
980 const_iv (ST_NOEXEC)
981 const_iv (ST_SYNCHRONOUS)
982 const_iv (ST_MANDLOCK)
983 const_iv (ST_WRITE)
984 const_iv (ST_APPEND)
985 const_iv (ST_IMMUTABLE)
986 const_iv (ST_NOATIME)
987 const_iv (ST_NODIRATIME)
988 const_iv (ST_RELATIME)
989
990 const_iv (PROT_NONE)
991 const_iv (PROT_EXEC)
992 const_iv (PROT_READ)
993 const_iv (PROT_WRITE)
994
995 /*const_iv (MAP_FIXED)*/
996 const_iv (MAP_PRIVATE)
997 const_iv (MAP_SHARED)
998 const_iv (MAP_ANONYMOUS)
999
1000 /* linuxish */
1001 const_iv (MAP_HUGETLB)
1002 const_iv (MAP_LOCKED)
1003 const_iv (MAP_NORESERVE)
1004 const_iv (MAP_POPULATE)
1005 const_iv (MAP_NONBLOCK)
1006
1007 const_eio (MCL_FUTURE)
1008 const_eio (MCL_CURRENT)
1009
1010 const_eio (MS_ASYNC)
1011 const_eio (MS_INVALIDATE)
1012 const_eio (MS_SYNC)
1013
1014 const_eio (MT_MODIFY)
1015
1016 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1017 const_eio (SYNC_FILE_RANGE_WRITE)
1018 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1019
1020 const_eio (FALLOC_FL_KEEP_SIZE)
1021
1022 const_eio (READDIR_DENTS)
1023 const_eio (READDIR_DIRS_FIRST)
1024 const_eio (READDIR_STAT_ORDER)
1025 const_eio (READDIR_FOUND_UNKNOWN)
1026
1027 const_eio (DT_UNKNOWN)
1028 const_eio (DT_FIFO)
1029 const_eio (DT_CHR)
1030 const_eio (DT_DIR)
1031 const_eio (DT_BLK)
1032 const_eio (DT_REG)
1033 const_eio (DT_LNK)
1034 const_eio (DT_SOCK)
1035 const_eio (DT_WHT)
1036 };
1037
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1038 aio_stash = gv_stashpv ("IO::AIO" , 1);
1039 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1040 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1041 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1042
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1043 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1044 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1346 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1347 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1348 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1349 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1350 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1351 1045
1352 create_pipe (); 1046 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1047
1048 reinit ();
1049}
1050
1356void 1051void
1052reinit ()
1053 PROTOTYPE:
1054
1055void
1357max_poll_reqs (int nreqs) 1056max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1057 PROTOTYPE: $
1359 CODE: 1058 CODE:
1360 max_poll_reqs = nreqs; 1059 eio_set_max_poll_reqs (nreqs);
1361 1060
1362void 1061void
1363max_poll_time (double nseconds) 1062max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1063 PROTOTYPE: $
1365 CODE: 1064 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1065 eio_set_max_poll_time (nseconds);
1367 1066
1368void 1067void
1369min_parallel (int nthreads) 1068min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1069 PROTOTYPE: $
1379 CODE: 1070 CODE:
1380 set_max_idle (nthreads); 1071 eio_set_min_parallel (nthreads);
1381 1072
1382int 1073void
1383max_outstanding (int maxreqs) 1074max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1075 PROTOTYPE: $
1385 CODE: 1076 CODE:
1386 RETVAL = max_outstanding; 1077 eio_set_max_parallel (nthreads);
1078
1079void
1080max_idle (unsigned int nthreads)
1081 PROTOTYPE: $
1082 CODE:
1083 eio_set_max_idle (nthreads);
1084
1085void
1086idle_timeout (unsigned int seconds)
1087 PROTOTYPE: $
1088 CODE:
1089 eio_set_idle_timeout (seconds);
1090
1091void
1092max_outstanding (unsigned int maxreqs)
1093 PROTOTYPE: $
1094 CODE:
1387 max_outstanding = maxreqs; 1095 max_outstanding = maxreqs;
1388 OUTPUT: 1096
1389 RETVAL 1097void
1098aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1099 PPCODE:
1100{
1101 dREQ;
1102
1103 req->type = EIO_WD_OPEN;
1104 req_set_path1 (req, pathname);
1105
1106 REQ_SEND;
1107}
1390 1108
1391void 1109void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1110aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1111 PPCODE:
1395{ 1112{
1396 dREQ; 1113 dREQ;
1397 1114
1398 req->type = REQ_OPEN; 1115 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1116 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1117 req->int1 = flags;
1402 req->mode = mode; 1118 req->int2 = mode;
1403 1119
1404 REQ_SEND; 1120 REQ_SEND;
1405} 1121}
1406 1122
1407void 1123void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1124aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1125 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1126 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1127 aio_fdatasync = EIO_FDATASYNC
1128 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1129 PPCODE:
1415{ 1130{
1131 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1132 dREQ;
1417 1133
1418 req->type = ix; 1134 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1135 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1136 req->int1 = fd;
1421 1137
1422 REQ_SEND (req); 1138 REQ_SEND (req);
1423} 1139}
1424 1140
1425void 1141void
1142aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1143 PPCODE:
1144{
1145 int fd = s_fileno_croak (fh, 0);
1146 dREQ;
1147
1148 req->type = EIO_SYNC_FILE_RANGE;
1149 req->sv1 = newSVsv (fh);
1150 req->int1 = fd;
1151 req->offs = offset;
1152 req->size = nbytes;
1153 req->int2 = flags;
1154
1155 REQ_SEND (req);
1156}
1157
1158void
1159aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1160 PPCODE:
1161{
1162 int fd = s_fileno_croak (fh, 0);
1163 dREQ;
1164
1165 req->type = EIO_FALLOCATE;
1166 req->sv1 = newSVsv (fh);
1167 req->int1 = fd;
1168 req->int2 = mode;
1169 req->offs = offset;
1170 req->size = len;
1171
1172 REQ_SEND (req);
1173}
1174
1175void
1176aio_close (SV *fh, SV *callback=&PL_sv_undef)
1177 PPCODE:
1178{
1179 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1180 int fd = s_fileno_croak (fh, 0);
1181 dREQ;
1182
1183 if (expect_false (close_fd < 0))
1184 {
1185 int pipefd [2];
1186
1187 if (
1188#ifdef _WIN32
1189 _pipe (pipefd, 1, _O_BINARY) < 0
1190#else
1191 pipe (pipefd) < 0
1192 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1193#endif
1194 || close (pipefd [1]) < 0
1195 )
1196 abort (); /*D*/
1197
1198 close_fd = pipefd [0];
1199 }
1200
1201 req->type = EIO_DUP2;
1202 req->int1 = close_fd;
1203 req->sv2 = newSVsv (fh);
1204 req->int2 = fd;
1205
1206 REQ_SEND (req);
1207}
1208
1209void
1426aio_read (SV *fh, SV *offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1210aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1427 ALIAS: 1211 ALIAS:
1428 aio_read = REQ_READ 1212 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1213 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1214 PPCODE:
1432{ 1215{
1433 STRLEN svlen; 1216 STRLEN svlen;
1217 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1218 char *svptr = SvPVbyte (data, svlen);
1435 1219 UV len = SvUV (length);
1436 SvUPGRADE (data, SVt_PV);
1437 SvPOK_on (data);
1438 1220
1439 if (dataoffset < 0) 1221 if (dataoffset < 0)
1440 dataoffset += svlen; 1222 dataoffset += svlen;
1441 1223
1442 if (dataoffset < 0 || dataoffset > svlen) 1224 if (dataoffset < 0 || dataoffset > svlen)
1443 croak ("data offset outside of string"); 1225 croak ("dataoffset outside of data scalar");
1444 1226
1445 if (ix == REQ_WRITE) 1227 if (ix == EIO_WRITE)
1446 { 1228 {
1447 /* write: check length and adjust. */ 1229 /* write: check length and adjust. */
1448 if (length < 0 || length + dataoffset > svlen) 1230 if (!SvOK (length) || len + dataoffset > svlen)
1449 length = svlen - dataoffset; 1231 len = svlen - dataoffset;
1450 } 1232 }
1451 else 1233 else
1452 { 1234 {
1453 /* read: grow scalar as necessary */ 1235 /* read: check type and grow scalar as necessary */
1236 SvUPGRADE (data, SVt_PV);
1454 svptr = SvGROW (data, length + dataoffset + 1); 1237 svptr = SvGROW (data, len + dataoffset + 1);
1455 } 1238 }
1456
1457 if (length < 0)
1458 croak ("length must not be negative");
1459 1239
1460 { 1240 {
1461 dREQ; 1241 dREQ;
1462 1242
1463 req->type = ix; 1243 req->type = ix;
1464 req->sv1 = newSVsv (fh); 1244 req->sv1 = newSVsv (fh);
1465 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1245 req->int1 = fd;
1466 : IoOFP (sv_2io (fh)));
1467 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1246 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1468 req->size = length; 1247 req->size = len;
1469 req->sv2 = SvREFCNT_inc (data); 1248 req->sv2 = SvREFCNT_inc (data);
1470 req->ptr1 = (char *)svptr + dataoffset; 1249 req->ptr2 = (char *)svptr + dataoffset;
1471 req->stroffset = dataoffset; 1250 req->stroffset = dataoffset;
1472 1251
1473 if (!SvREADONLY (data)) 1252 if (!SvREADONLY (data))
1474 { 1253 {
1475 SvREADONLY_on (data); 1254 SvREADONLY_on (data);
… …
1479 REQ_SEND; 1258 REQ_SEND;
1480 } 1259 }
1481} 1260}
1482 1261
1483void 1262void
1484aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1263aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1485 PROTOTYPE: $$;$ 1264 ALIAS:
1265 aio_readlink = EIO_READLINK
1266 aio_realpath = EIO_REALPATH
1486 PPCODE: 1267 PPCODE:
1487{ 1268{
1488 SV *data;
1489 dREQ; 1269 dREQ;
1490 1270
1491 data = newSV (NAME_MAX);
1492 SvPOK_on (data);
1493
1494 req->type = REQ_READLINK; 1271 req->type = ix;
1495 req->sv1 = newSVsv (path); 1272 req_set_path1 (req, pathname);
1496 req->ptr2 = SvPVbyte_nolen (req->sv1);
1497 req->sv2 = data;
1498 req->ptr1 = SvPVbyte_nolen (data);
1499 1273
1500 REQ_SEND; 1274 REQ_SEND;
1501} 1275}
1502 1276
1503void 1277void
1504aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1278aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $$$$;$
1506 PPCODE: 1279 PPCODE:
1507{ 1280{
1281 int ifd = s_fileno_croak (in_fh , 0);
1282 int ofd = s_fileno_croak (out_fh, 1);
1508 dREQ; 1283 dREQ;
1509 1284
1510 req->type = REQ_SENDFILE; 1285 req->type = EIO_SENDFILE;
1511 req->sv1 = newSVsv (out_fh); 1286 req->sv1 = newSVsv (out_fh);
1512 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1287 req->int1 = ofd;
1513 req->sv2 = newSVsv (in_fh); 1288 req->sv2 = newSVsv (in_fh);
1514 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1289 req->int2 = ifd;
1515 req->offs = SvVAL64 (in_offset); 1290 req->offs = in_offset;
1516 req->size = length; 1291 req->size = length;
1517 1292
1518 REQ_SEND; 1293 REQ_SEND;
1519} 1294}
1520 1295
1521void 1296void
1522aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1297aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1523 PROTOTYPE: $$$;$
1524 PPCODE: 1298 PPCODE:
1525{ 1299{
1300 int fd = s_fileno_croak (fh, 0);
1526 dREQ; 1301 dREQ;
1527 1302
1528 req->type = REQ_READAHEAD; 1303 req->type = EIO_READAHEAD;
1529 req->sv1 = newSVsv (fh); 1304 req->sv1 = newSVsv (fh);
1530 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1305 req->int1 = fd;
1531 req->offs = SvVAL64 (offset); 1306 req->offs = offset;
1532 req->size = length; 1307 req->size = length;
1533 1308
1534 REQ_SEND; 1309 REQ_SEND;
1535} 1310}
1536 1311
1537void 1312void
1538aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1313aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1539 ALIAS: 1314 ALIAS:
1540 aio_stat = REQ_STAT 1315 aio_stat = EIO_STAT
1541 aio_lstat = REQ_LSTAT 1316 aio_lstat = EIO_LSTAT
1317 aio_statvfs = EIO_STATVFS
1542 PPCODE: 1318 PPCODE:
1543{ 1319{
1544 dREQ; 1320 dREQ;
1545 1321
1546 req->ptr2 = malloc (sizeof (Stat_t)); 1322 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1547 if (!req->ptr2)
1548 {
1549 req_destroy (req);
1550 croak ("out of memory during aio_stat statdata allocation");
1551 }
1552
1553 req->flags |= FLAG_PTR2_FREE;
1554 req->sv1 = newSVsv (fh_or_path);
1555
1556 if (SvPOK (fh_or_path))
1557 {
1558 req->type = ix;
1559 req->ptr1 = SvPVbyte_nolen (req->sv1);
1560 }
1561 else
1562 {
1563 req->type = REQ_FSTAT;
1564 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1565 }
1566 1323
1567 REQ_SEND; 1324 REQ_SEND;
1568} 1325}
1326
1327UV
1328major (UV dev)
1329 ALIAS:
1330 minor = 1
1331 CODE:
1332 RETVAL = ix ? major (dev) : minor (dev);
1333 OUTPUT:
1334 RETVAL
1335
1336UV
1337makedev (UV maj, UV min)
1338 CODE:
1339 RETVAL = makedev (maj, min);
1340 OUTPUT:
1341 RETVAL
1569 1342
1570void 1343void
1571aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1344aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1572 PPCODE: 1345 PPCODE:
1573{ 1346{
1574 dREQ; 1347 dREQ;
1575 1348
1576 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1349 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1577 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1350 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1578 req->sv1 = newSVsv (fh_or_path); 1351 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1579 1352
1580 if (SvPOK (fh_or_path)) 1353 REQ_SEND;
1581 { 1354}
1582 req->type = REQ_UTIME; 1355
1583 req->ptr1 = SvPVbyte_nolen (req->sv1); 1356void
1584 } 1357aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1585 else 1358 PPCODE:
1586 { 1359{
1587 req->type = REQ_FUTIME; 1360 dREQ;
1588 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1361
1589 } 1362 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1363 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1590 1364
1591 REQ_SEND; 1365 REQ_SEND;
1592} 1366}
1593 1367
1594void 1368void
1595aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1369aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1596 PPCODE: 1370 PPCODE:
1597{ 1371{
1598 dREQ; 1372 dREQ;
1599 1373
1600 req->mode = mode; 1374 req->int2 = mode;
1601 req->sv1 = newSVsv (fh_or_path); 1375 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1602
1603 if (SvPOK (fh_or_path))
1604 {
1605 req->type = REQ_CHMOD;
1606 req->ptr1 = SvPVbyte_nolen (req->sv1);
1607 }
1608 else
1609 {
1610 req->type = REQ_FCHMOD;
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1612 }
1613 1376
1614 REQ_SEND; 1377 REQ_SEND;
1615} 1378}
1616 1379
1617void 1380void
… …
1620{ 1383{
1621 dREQ; 1384 dREQ;
1622 1385
1623 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1386 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1624 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1387 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1625 req->sv1 = newSVsv (fh_or_path); 1388 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1626 1389
1627 if (SvPOK (fh_or_path)) 1390 REQ_SEND;
1628 { 1391}
1629 req->type = REQ_CHOWN; 1392
1630 req->ptr1 = SvPVbyte_nolen (req->sv1); 1393void
1631 } 1394aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1632 else 1395 PPCODE:
1633 { 1396{
1634 req->type = REQ_FCHOWN; 1397 dREQ;
1635 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1398
1636 } 1399 req->type = EIO_READDIR;
1400 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1401
1402 if (flags & EIO_READDIR_DENTS)
1403 req->int1 |= EIO_READDIR_CUSTOM2;
1404
1405 req_set_path1 (req, pathname);
1406
1407 REQ_SEND;
1408}
1409
1410void
1411aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1412 PPCODE:
1413{
1414 dREQ;
1415
1416 req->type = EIO_MKDIR;
1417 req->int2 = mode;
1418 req_set_path1 (req, pathname);
1637 1419
1638 REQ_SEND; 1420 REQ_SEND;
1639} 1421}
1640 1422
1641void 1423void
1642aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1424aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1643 ALIAS: 1425 ALIAS:
1644 aio_unlink = REQ_UNLINK 1426 aio_unlink = EIO_UNLINK
1645 aio_rmdir = REQ_RMDIR 1427 aio_rmdir = EIO_RMDIR
1646 aio_readdir = REQ_READDIR 1428 aio_readdir = EIO_READDIR
1647 PPCODE: 1429 PPCODE:
1648{ 1430{
1649 dREQ; 1431 dREQ;
1650 1432
1651 req->type = ix; 1433 req->type = ix;
1652 req->sv1 = newSVsv (pathname); 1434 req_set_path1 (req, pathname);
1653 req->ptr1 = SvPVbyte_nolen (req->sv1);
1654
1655 REQ_SEND;
1656}
1657
1658void
1659aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1660 PPCODE:
1661{
1662 dREQ;
1663
1664 req->type = REQ_MKDIR;
1665 req->sv1 = newSVsv (pathname);
1666 req->ptr1 = SvPVbyte_nolen (req->sv1);
1667 req->mode = mode;
1668 1435
1669 REQ_SEND; 1436 REQ_SEND;
1670} 1437}
1671 1438
1672void 1439void
1673aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1440aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1674 ALIAS: 1441 ALIAS:
1675 aio_link = REQ_LINK 1442 aio_link = EIO_LINK
1676 aio_symlink = REQ_SYMLINK 1443 aio_symlink = EIO_SYMLINK
1677 aio_rename = REQ_RENAME 1444 aio_rename = EIO_RENAME
1678 PPCODE: 1445 PPCODE:
1679{ 1446{
1447 eio_wd wd2 = 0;
1680 dREQ; 1448 dREQ;
1681 1449
1682 req->type = ix; 1450 req->type = ix;
1683 req->sv2 = newSVsv (oldpath); 1451 req_set_path1 (req, oldpath);
1684 req->ptr2 = SvPVbyte_nolen (req->sv2); 1452 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1685 req->sv1 = newSVsv (newpath); 1453 req->int3 = (long)wd2;
1686 req->ptr1 = SvPVbyte_nolen (req->sv1);
1687 1454
1688 REQ_SEND; 1455 REQ_SEND;
1689} 1456}
1690 1457
1691void 1458void
1692aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1459aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1693 PPCODE: 1460 PPCODE:
1694{ 1461{
1695 dREQ; 1462 dREQ;
1696 1463
1697 req->type = REQ_MKNOD; 1464 req->type = EIO_MKNOD;
1698 req->sv1 = newSVsv (pathname);
1699 req->ptr1 = SvPVbyte_nolen (req->sv1);
1700 req->mode = (mode_t)mode; 1465 req->int2 = (mode_t)mode;
1701 req->offs = dev; 1466 req->offs = dev;
1467 req_set_path1 (req, pathname);
1702 1468
1703 REQ_SEND; 1469 REQ_SEND;
1704} 1470}
1705 1471
1706void 1472void
1473aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1474 ALIAS:
1475 aio_mtouch = EIO_MTOUCH
1476 aio_msync = EIO_MSYNC
1477 PPCODE:
1478{
1479 STRLEN svlen;
1480 char *svptr = SvPVbyte (data, svlen);
1481 UV len = SvUV (length);
1482
1483 if (offset < 0)
1484 offset += svlen;
1485
1486 if (offset < 0 || offset > svlen)
1487 croak ("offset outside of scalar");
1488
1489 if (!SvOK (length) || len + offset > svlen)
1490 len = svlen - offset;
1491
1492 {
1493 dREQ;
1494
1495 req->type = ix;
1496 req->sv2 = SvREFCNT_inc (data);
1497 req->ptr2 = (char *)svptr + offset;
1498 req->size = len;
1499 req->int1 = flags;
1500
1501 REQ_SEND;
1502 }
1503}
1504
1505void
1506aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1507 PPCODE:
1508{
1509 STRLEN svlen;
1510 char *svptr = SvPVbyte (data, svlen);
1511 UV len = SvUV (length);
1512
1513 if (offset < 0)
1514 offset += svlen;
1515
1516 if (offset < 0 || offset > svlen)
1517 croak ("offset outside of scalar");
1518
1519 if (!SvOK (length) || len + offset > svlen)
1520 len = svlen - offset;
1521
1522 {
1523 dREQ;
1524
1525 req->type = EIO_MLOCK;
1526 req->sv2 = SvREFCNT_inc (data);
1527 req->ptr2 = (char *)svptr + offset;
1528 req->size = len;
1529
1530 REQ_SEND;
1531 }
1532}
1533
1534void
1535aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1536 PPCODE:
1537{
1538 dREQ;
1539
1540 req->type = EIO_MLOCKALL;
1541 req->int1 = flags;
1542
1543 REQ_SEND;
1544}
1545
1546void
1707aio_busy (double delay, SV *callback=&PL_sv_undef) 1547aio_busy (double delay, SV *callback=&PL_sv_undef)
1708 PPCODE: 1548 PPCODE:
1709{ 1549{
1710 dREQ; 1550 dREQ;
1711 1551
1712 req->type = REQ_BUSY; 1552 req->type = EIO_BUSY;
1713 req->nv1 = delay < 0. ? 0. : delay; 1553 req->nv1 = delay < 0. ? 0. : delay;
1714 1554
1715 REQ_SEND; 1555 REQ_SEND;
1716} 1556}
1717 1557
1718void 1558void
1719aio_group (SV *callback=&PL_sv_undef) 1559aio_group (SV *callback=&PL_sv_undef)
1720 PROTOTYPE: ;$
1721 PPCODE: 1560 PPCODE:
1722{ 1561{
1723 dREQ; 1562 dREQ;
1724 1563
1725 req->type = REQ_GROUP; 1564 req->type = EIO_GROUP;
1726 1565
1727 req_send (req); 1566 req_submit (req);
1728 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1567 XPUSHs (req_sv (req, aio_grp_stash));
1729} 1568}
1730 1569
1731void 1570void
1732aio_nop (SV *callback=&PL_sv_undef) 1571aio_nop (SV *callback=&PL_sv_undef)
1572 ALIAS:
1573 aio_nop = EIO_NOP
1574 aio_sync = EIO_SYNC
1733 PPCODE: 1575 PPCODE:
1734{ 1576{
1735 dREQ; 1577 dREQ;
1736 1578
1737 req->type = REQ_NOP; 1579 req->type = ix;
1738 1580
1739 REQ_SEND; 1581 REQ_SEND;
1740} 1582}
1741 1583
1742int 1584int
1743aioreq_pri (int pri = 0) 1585aioreq_pri (int pri = 0)
1744 PROTOTYPE: ;$
1745 CODE: 1586 CODE:
1746 RETVAL = next_pri - PRI_BIAS; 1587 RETVAL = next_pri;
1747 if (items > 0) 1588 if (items > 0)
1748 { 1589 {
1749 if (pri < PRI_MIN) pri = PRI_MIN; 1590 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1750 if (pri > PRI_MAX) pri = PRI_MAX; 1591 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1751 next_pri = pri + PRI_BIAS; 1592 next_pri = pri;
1752 } 1593 }
1753 OUTPUT: 1594 OUTPUT:
1754 RETVAL 1595 RETVAL
1755 1596
1756void 1597void
1757aioreq_nice (int nice = 0) 1598aioreq_nice (int nice = 0)
1758 CODE: 1599 CODE:
1759 nice = next_pri - nice; 1600 nice = next_pri - nice;
1760 if (nice < PRI_MIN) nice = PRI_MIN; 1601 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1761 if (nice > PRI_MAX) nice = PRI_MAX; 1602 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1762 next_pri = nice + PRI_BIAS; 1603 next_pri = nice;
1763 1604
1764void 1605void
1765flush () 1606flush ()
1766 PROTOTYPE:
1767 CODE: 1607 CODE:
1768 while (nreqs) 1608 while (eio_nreqs ())
1769 { 1609 {
1770 poll_wait (); 1610 poll_wait ();
1771 poll_cb (); 1611 poll_cb ();
1772 } 1612 }
1773 1613
1774int 1614int
1775poll() 1615poll ()
1776 PROTOTYPE:
1777 CODE: 1616 CODE:
1778 poll_wait (); 1617 poll_wait ();
1779 RETVAL = poll_cb (); 1618 RETVAL = poll_cb ();
1780 OUTPUT: 1619 OUTPUT:
1781 RETVAL 1620 RETVAL
1782 1621
1783int 1622int
1784poll_fileno() 1623poll_fileno ()
1785 PROTOTYPE:
1786 CODE: 1624 CODE:
1787 RETVAL = respipe [0]; 1625 RETVAL = s_epipe_fd (&respipe);
1788 OUTPUT: 1626 OUTPUT:
1789 RETVAL 1627 RETVAL
1790 1628
1791int 1629int
1792poll_cb(...) 1630poll_cb (...)
1793 PROTOTYPE: 1631 PROTOTYPE:
1794 CODE: 1632 CODE:
1795 RETVAL = poll_cb (); 1633 RETVAL = poll_cb ();
1796 OUTPUT: 1634 OUTPUT:
1797 RETVAL 1635 RETVAL
1798 1636
1799void 1637void
1800poll_wait() 1638poll_wait ()
1801 PROTOTYPE:
1802 CODE: 1639 CODE:
1803 poll_wait (); 1640 poll_wait ();
1804 1641
1805void
1806setsig (int signum = SIGIO)
1807 PROTOTYPE: ;$
1808 CODE:
1809{
1810 if (block_sig_level)
1811 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1812
1813 LOCK (reslock);
1814 main_tid = pthread_self ();
1815 main_sig = signum;
1816 UNLOCK (reslock);
1817
1818 if (main_sig && npending)
1819 pthread_kill (main_tid, main_sig);
1820}
1821
1822void
1823aio_block (SV *cb)
1824 PROTOTYPE: &
1825 PPCODE:
1826{
1827 int count;
1828
1829 block_sig ();
1830 PUSHMARK (SP);
1831 PUTBACK;
1832 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1833 SPAGAIN;
1834 unblock_sig ();
1835
1836 if (SvTRUE (ERRSV))
1837 croak (0);
1838
1839 XSRETURN (count);
1840}
1841
1842int 1642int
1843nreqs() 1643nreqs ()
1844 PROTOTYPE:
1845 CODE: 1644 CODE:
1846 RETVAL = nreqs; 1645 RETVAL = eio_nreqs ();
1847 OUTPUT: 1646 OUTPUT:
1848 RETVAL 1647 RETVAL
1849 1648
1850int 1649int
1851nready() 1650nready ()
1852 PROTOTYPE:
1853 CODE: 1651 CODE:
1854 RETVAL = get_nready (); 1652 RETVAL = eio_nready ();
1855 OUTPUT: 1653 OUTPUT:
1856 RETVAL 1654 RETVAL
1857 1655
1858int 1656int
1859npending() 1657npending ()
1860 PROTOTYPE:
1861 CODE: 1658 CODE:
1862 RETVAL = get_npending (); 1659 RETVAL = eio_npending ();
1863 OUTPUT: 1660 OUTPUT:
1864 RETVAL 1661 RETVAL
1865 1662
1866int 1663int
1867nthreads() 1664nthreads ()
1868 PROTOTYPE:
1869 CODE: 1665 CODE:
1870 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1666 RETVAL = eio_nthreads ();
1871 RETVAL = started;
1872 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1873 OUTPUT: 1667 OUTPUT:
1874 RETVAL 1668 RETVAL
1875 1669
1670int
1671fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1672 CODE:
1673 RETVAL = posix_fadvise (fh, offset, length, advice);
1674 OUTPUT:
1675 RETVAL
1676
1677IV
1678sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1679 CODE:
1680 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1681 OUTPUT:
1682 RETVAL
1683
1684void
1685mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1686 PPCODE:
1687 sv_unmagic (scalar, MMAP_MAGIC);
1688{
1689 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1690 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1691 if (addr == (void *)-1)
1692 XSRETURN_NO;
1693
1694 sv_force_normal (scalar);
1695
1696 /* we store the length in mg_obj, as namlen is I32 :/ */
1697 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1698 ->mg_obj = (SV *)length;
1699
1700 SvUPGRADE (scalar, SVt_PV); /* nop... */
1701
1702 if (!(prot & PROT_WRITE))
1703 SvREADONLY_on (scalar);
1704
1705 if (SvLEN (scalar))
1706 Safefree (SvPVX (scalar));
1707
1708 SvPVX (scalar) = (char *)addr;
1709 SvCUR_set (scalar, length);
1710 SvLEN_set (scalar, 0);
1711 SvPOK_only (scalar);
1712
1713 XSRETURN_YES;
1714}
1715
1716void
1717munmap (SV *scalar)
1718 CODE:
1719 sv_unmagic (scalar, MMAP_MAGIC);
1720
1721int
1722madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1723 ALIAS:
1724 mprotect = 1
1725 CODE:
1726{
1727 STRLEN svlen;
1728 void *addr = SvPVbyte (scalar, svlen);
1729 size_t len = SvUV (length);
1730
1731 if (offset < 0)
1732 offset += svlen;
1733
1734 if (offset < 0 || offset > svlen)
1735 croak ("offset outside of scalar");
1736
1737 if (!SvOK (length) || len + offset > svlen)
1738 len = svlen - offset;
1739
1740 addr = (void *)(((intptr_t)addr) + offset);
1741 eio_page_align (&addr, &len);
1742
1743 switch (ix)
1744 {
1745 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1746 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1747 }
1748}
1749 OUTPUT:
1750 RETVAL
1751
1752int
1753munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1754 CODE:
1755{
1756 STRLEN svlen;
1757 void *addr = SvPVbyte (scalar, svlen);
1758 size_t len = SvUV (length);
1759
1760 if (offset < 0)
1761 offset += svlen;
1762
1763 if (offset < 0 || offset > svlen)
1764 croak ("offset outside of scalar");
1765
1766 if (!SvOK (length) || len + offset > svlen)
1767 len = svlen - offset;
1768
1769 addr = (void *)(((intptr_t)addr) + offset);
1770 eio_page_align (&addr, &len);
1771#if _POSIX_MEMLOCK_RANGE
1772 RETVAL = munlock (addr, len);
1773#else
1774 RETVAL = ((errno = ENOSYS), -1);
1775#endif
1776}
1777 OUTPUT:
1778 RETVAL
1779
1780int
1781munlockall ()
1782 CODE:
1783#if _POSIX_MEMLOCK
1784 munlockall ();
1785#else
1786 RETVAL = -1;
1787 errno = ENOSYS;
1788#endif
1789 OUTPUT:
1790 RETVAL
1791
1792void _on_next_submit (SV *cb)
1793 CODE:
1794 SvREFCNT_dec (on_next_submit);
1795 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1796
1876PROTOTYPES: DISABLE 1797PROTOTYPES: DISABLE
1798
1799MODULE = IO::AIO PACKAGE = IO::AIO::WD
1800
1801BOOT:
1802{
1803 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1804 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1805}
1806
1807void
1808DESTROY (SV *self)
1809 CODE:
1810{
1811 aio_wd wd = SvAIO_WD (self);
1812#if HAVE_AT
1813 {
1814 SV *callback = &PL_sv_undef;
1815 dREQ; /* clobbers next_pri :/ */
1816 next_pri = req->pri; /* restore next_pri */
1817 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1818 req->type = EIO_WD_CLOSE;
1819 req->wd = wd;
1820 REQ_SEND;
1821 }
1822#else
1823 eio_wd_close_sync (wd);
1824#endif
1825}
1877 1826
1878MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1827MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1879 1828
1880void 1829void
1881cancel (aio_req_ornot req) 1830cancel (aio_req_ornot req)
1882 CODE: 1831 CODE:
1883 req_cancel (req); 1832 eio_cancel (req);
1884 1833
1885void 1834void
1886cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1835cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1887 CODE: 1836 PPCODE:
1837{
1838 if (GIMME_V != G_VOID)
1839 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1840
1841 if (items > 1)
1842 {
1843 SV *cb_cv =get_cb (callback);
1844
1888 SvREFCNT_dec (req->callback); 1845 SvREFCNT_dec (req->callback);
1889 req->callback = newSVsv (callback); 1846 req->callback = SvREFCNT_inc (cb_cv);
1847 }
1848}
1890 1849
1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1850MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1892 1851
1893void 1852void
1894add (aio_req grp, ...) 1853add (aio_req grp, ...)
1895 PPCODE: 1854 PPCODE:
1896{ 1855{
1897 int i; 1856 int i;
1898 aio_req req;
1899
1900 if (main_sig && !block_sig_level)
1901 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1902 1857
1903 if (grp->int1 == 2) 1858 if (grp->int1 == 2)
1904 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1859 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1905 1860
1906 for (i = 1; i < items; ++i ) 1861 for (i = 1; i < items; ++i )
1907 { 1862 {
1863 aio_req req;
1864
1908 if (GIMME_V != G_VOID) 1865 if (GIMME_V != G_VOID)
1909 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1866 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1910 1867
1911 req = SvAIO_REQ (ST (i)); 1868 req = SvAIO_REQ (ST (i));
1912 1869
1913 if (req) 1870 if (req)
1914 { 1871 eio_grp_add (grp, req);
1915 ++grp->size;
1916 req->grp = grp;
1917
1918 req->grp_prev = 0;
1919 req->grp_next = grp->grp_first;
1920
1921 if (grp->grp_first)
1922 grp->grp_first->grp_prev = req;
1923
1924 grp->grp_first = req;
1925 }
1926 } 1872 }
1927} 1873}
1928 1874
1929void 1875void
1930cancel_subs (aio_req_ornot req) 1876cancel_subs (aio_req_ornot req)
… …
1939 AV *av; 1885 AV *av;
1940 1886
1941 grp->errorno = errno; 1887 grp->errorno = errno;
1942 1888
1943 av = newAV (); 1889 av = newAV ();
1890 av_extend (av, items - 1);
1944 1891
1945 for (i = 1; i < items; ++i ) 1892 for (i = 1; i < items; ++i )
1946 av_push (av, newSVsv (ST (i))); 1893 av_push (av, newSVsv (ST (i)));
1947 1894
1948 SvREFCNT_dec (grp->sv1); 1895 SvREFCNT_dec (grp->sv1);
… …
1955 grp->errorno = errorno; 1902 grp->errorno = errorno;
1956 1903
1957void 1904void
1958limit (aio_req grp, int limit) 1905limit (aio_req grp, int limit)
1959 CODE: 1906 CODE:
1960 grp->int2 = limit; 1907 eio_grp_limit (grp, limit);
1961 aio_grp_feed (grp);
1962 1908
1963void 1909void
1964feed (aio_req grp, SV *callback=&PL_sv_undef) 1910feed (aio_req grp, SV *callback=&PL_sv_undef)
1965 CODE: 1911 CODE:
1966{ 1912{
1967 SvREFCNT_dec (grp->sv2); 1913 SvREFCNT_dec (grp->sv2);
1968 grp->sv2 = newSVsv (callback); 1914 grp->sv2 = newSVsv (callback);
1915 grp->feed = aio_grp_feed;
1969 1916
1970 if (grp->int2 <= 0) 1917 if (grp->int2 <= 0)
1971 grp->int2 = 2; 1918 grp->int2 = 2;
1972 1919
1973 aio_grp_feed (grp); 1920 eio_grp_limit (grp, grp->int2);
1974} 1921}
1975 1922

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