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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 1.209 by root, Sun Apr 1 17:46:02 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_SEEK:
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 644 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
512 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result)));
514 break; 645 break;
515 646
647 case EIO_READ:
648 {
649 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
650 *SvEND (req->sv2) = 0;
651 SvPOK_only (req->sv2);
652 SvSETMAGIC (req->sv2);
653 PUSHs (sv_result);
654 }
655 break;
656
657 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658 if (req->result > 0)
659 SvIV_set (sv_result, 0);
660 /* FALLTHROUGH */
661
516 default: 662 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 663 PUSHs (sv_result);
518 break; 664 break;
519 } 665 }
520 666
521 errno = req->errorno; 667 errno = req->errorno;
522 668
523 PUTBACK; 669 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 670 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 671 SPAGAIN;
672
673 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
674 SvREFCNT_dec (sv_result);
675 else
676 sv_result_cache = sv_result;
526 677
527 FREETMPS; 678 FREETMPS;
528 LEAVE; 679 LEAVE;
680
681 PUTBACK;
529 } 682 }
530 683
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); 684 return !!SvTRUE (ERRSV);
546} 685}
547 686
687static void
548static void req_destroy (aio_req req) 688req_destroy (aio_req req)
549{ 689{
550 if (req->self) 690 if (req->self)
551 { 691 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 692 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 693 SvREFCNT_dec (req->self);
554 } 694 }
555 695
556 SvREFCNT_dec (req->sv1); 696 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 697 SvREFCNT_dec (req->sv2);
698 SvREFCNT_dec (req->sv3);
699 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 700 SvREFCNT_dec (req->callback);
559 701
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 702 free (req);
564} 703}
565 704
705static void
566static void req_cancel_subs (aio_req grp) 706req_cancel_subs (aio_req grp)
567{ 707{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 708 if (grp->type != EIO_GROUP)
571 return; 709 return;
572 710
573 SvREFCNT_dec (grp->sv2); 711 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 712 grp->sv2 = 0;
575 713
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 714 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 715}
579 716
580static void req_cancel (aio_req req) 717static void ecb_cold
718create_respipe (void)
581{ 719{
582 req->flags |= FLAG_CANCELLED; 720 if (s_epipe_renew (&respipe))
583 721 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 722}
586 723
587static void *aio_proc (void *arg); 724static void
588 725poll_wait (void)
589static void start_thread (void)
590{ 726{
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) 727 while (eio_nreqs ())
687 { 728 {
688 int size; 729 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 730
731 X_LOCK (reslock);
690 size = res_queue.size; 732 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 733 X_UNLOCK (reslock);
692 734
693 if (size) 735 if (size)
694 return; 736 return;
695 737
696 maybe_start_thread (); 738 etp_maybe_start_thread ();
697 739
698 FD_ZERO(&rfd); 740 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 741 }
703} 742}
704 743
705static int poll_cb () 744static int
745poll_cb (void)
706{ 746{
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 (;;) 747 for (;;)
720 { 748 {
721 for (;;) 749 int res = eio_poll ();
750
751 if (res > 0)
752 croak (0);
753
754 if (!max_outstanding || max_outstanding > eio_nreqs ())
755 return res;
756
757 poll_wait ();
758 }
759}
760
761static void ecb_cold
762reinit (void)
763{
764 create_respipe ();
765
766 if (eio_init (want_poll, done_poll) < 0)
767 croak ("IO::AIO: unable to initialise eio library");
768}
769
770/*****************************************************************************/
771
772#if !_POSIX_MAPPED_FILES
773# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
774# define munmap(addr,length) (errno = ENOSYS, -1)
775#endif
776
777#if !_POSIX_MEMORY_PROTECTION
778# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
779# define PROT_NONE 0
780# define PROT_WRITE 0
781# define MAP_PRIVATE 0
782# define MAP_SHARED 0
783# define MAP_FIXED 0
784#endif
785
786#define MMAP_MAGIC PERL_MAGIC_ext
787
788static int ecb_cold
789mmap_free (pTHX_ SV *sv, MAGIC *mg)
790{
791 int old_errno = errno;
792 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
793 errno = old_errno;
794
795 mg->mg_obj = 0; /* just in case */
796
797 SvREADONLY_off (sv);
798
799 if (SvPVX (sv) != mg->mg_ptr)
800 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
801
802 SvCUR_set (sv, 0);
803 SvPVX (sv) = 0;
804 SvOK_off (sv);
805
806 return 0;
807}
808
809static MGVTBL mmap_vtbl = {
810 0, 0, 0, 0, mmap_free
811};
812
813/*****************************************************************************/
814
815static SV *
816get_cb (SV *cb_sv)
817{
818 SvGETMAGIC (cb_sv);
819 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
820}
821
822static aio_req ecb_noinline
823dreq (SV *callback)
824{
825 SV *cb_cv;
826 aio_req req;
827 int req_pri = next_pri;
828 next_pri = EIO_PRI_DEFAULT;
829
830 cb_cv = get_cb (callback);
831
832 req = calloc (sizeof (*req), 1);
833 if (!req)
834 croak ("out of memory during eio_req allocation");
835
836 req->callback = SvREFCNT_inc (cb_cv);
837 req->pri = req_pri;
838
839 return req;
840}
841
842#define dREQ \
843 aio_req req = dreq (callback); \
844
845#define REQ_SEND \
846 PUTBACK; \
847 req_submit (req); \
848 SPAGAIN; \
849 \
850 if (GIMME_V != G_VOID) \
851 XPUSHs (req_sv (req, aio_req_stash));
852
853ecb_inline void
854req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
855{
856 if (expect_false (SvROK (path)))
857 {
858 SV *rv = SvRV (path);
859 SV *wdob;
860
861 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 862 {
723 maybe_start_thread (); 863 path = AvARRAY (rv)[1];
864 wdob = AvARRAY (rv)[0];
724 865
725 LOCK (reslock); 866 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 867 {
730 --npending; 868 *wd = SvAIO_WD (wdob);
731 869 *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 } 870 }
753 else 871 else
754 { 872 *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 } 873 }
874 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
875 {
876 *wd = (aio_wd)(long)SvIVX (rv);
877 *wdsv = SvREFCNT_inc_NN (rv);
878 *ptr = ".";
879 return; /* path set to "." */
880 }
881 else
882 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
883 }
778 884
779 if (nreqs <= max_outstanding) 885 *pathsv = newSVsv (path);
886 *ptr = SvPVbyte_nolen (*pathsv);
887}
888
889static void ecb_noinline
890req_set_path1 (aio_req req, SV *path)
891{
892 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
893}
894
895static void ecb_noinline
896req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
897{
898 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
899
900 switch (SvTYPE (rv))
901 {
902 case SVt_PVIO:
903 case SVt_PVLV:
904 case SVt_PVGV:
905 req->type = type_fh;
906 req->sv1 = newSVsv (fh_or_path);
907 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 908 break;
781 909
782 poll_wait (); 910 default:
783 911 req->type = type_path;
784 ++maxreqs; 912 req_set_path1 (req, fh_or_path);
913 break;
785 } 914 }
786
787 unblock_sig ();
788 return count;
789} 915}
790 916
791static void create_pipe () 917XS(boot_IO__AIO) ecb_cold;
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795 918
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 919MODULE = IO::AIO PACKAGE = IO::AIO
1337 920
1338PROTOTYPES: ENABLE 921PROTOTYPES: ENABLE
1339 922
1340BOOT: 923BOOT:
1341{ 924{
925 static const struct {
926 const char *name;
927 IV iv;
928 } *civ, const_iv[] = {
929# define const_niv(name, value) { # name, (IV) value },
930# define const_iv(name) { # name, (IV) name },
931# define const_eio(name) { # name, (IV) EIO_ ## name },
932 const_iv (EXDEV)
933 const_iv (ENOSYS)
934 const_iv (O_RDONLY)
935 const_iv (O_WRONLY)
936 const_iv (O_RDWR)
937 const_iv (O_CREAT)
938 const_iv (O_TRUNC)
939 const_iv (O_EXCL)
940 const_iv (O_APPEND)
941
942 const_iv (O_ASYNC)
943 const_iv (O_DIRECT)
944 const_iv (O_NOATIME)
945
946 const_iv (O_CLOEXEC)
947 const_iv (O_NOCTTY)
948 const_iv (O_NOFOLLOW)
949 const_iv (O_NONBLOCK)
950 const_iv (O_EXEC)
951 const_iv (O_SEARCH)
952 const_iv (O_DIRECTORY)
953 const_iv (O_DSYNC)
954 const_iv (O_RSYNC)
955 const_iv (O_SYNC)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
969 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
970 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
971 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
972 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
973 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
974
975 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
976 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
977 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
978 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
979 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
980
981 const_iv (ST_RDONLY)
982 const_iv (ST_NOSUID)
983 const_iv (ST_NODEV)
984 const_iv (ST_NOEXEC)
985 const_iv (ST_SYNCHRONOUS)
986 const_iv (ST_MANDLOCK)
987 const_iv (ST_WRITE)
988 const_iv (ST_APPEND)
989 const_iv (ST_IMMUTABLE)
990 const_iv (ST_NOATIME)
991 const_iv (ST_NODIRATIME)
992 const_iv (ST_RELATIME)
993
994 const_iv (PROT_NONE)
995 const_iv (PROT_EXEC)
996 const_iv (PROT_READ)
997 const_iv (PROT_WRITE)
998
999 /*const_iv (MAP_FIXED)*/
1000 const_iv (MAP_PRIVATE)
1001 const_iv (MAP_SHARED)
1002 const_iv (MAP_ANONYMOUS)
1003
1004 /* linuxish */
1005 const_iv (MAP_HUGETLB)
1006 const_iv (MAP_LOCKED)
1007 const_iv (MAP_NORESERVE)
1008 const_iv (MAP_POPULATE)
1009 const_iv (MAP_NONBLOCK)
1010
1011 const_eio (SEEK_SET)
1012 const_eio (SEEK_CUR)
1013 const_eio (SEEK_END)
1014
1015 const_eio (MCL_FUTURE)
1016 const_eio (MCL_CURRENT)
1017
1018 const_eio (MS_ASYNC)
1019 const_eio (MS_INVALIDATE)
1020 const_eio (MS_SYNC)
1021
1022 const_eio (MT_MODIFY)
1023
1024 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1025 const_eio (SYNC_FILE_RANGE_WRITE)
1026 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1027
1028 const_eio (FALLOC_FL_KEEP_SIZE)
1029
1030 const_eio (READDIR_DENTS)
1031 const_eio (READDIR_DIRS_FIRST)
1032 const_eio (READDIR_STAT_ORDER)
1033 const_eio (READDIR_FOUND_UNKNOWN)
1034
1035 const_eio (DT_UNKNOWN)
1036 const_eio (DT_FIFO)
1037 const_eio (DT_CHR)
1038 const_eio (DT_DIR)
1039 const_eio (DT_BLK)
1040 const_eio (DT_REG)
1041 const_eio (DT_LNK)
1042 const_eio (DT_SOCK)
1043 const_eio (DT_WHT)
1044 };
1045
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1046 aio_stash = gv_stashpv ("IO::AIO" , 1);
1047 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1048 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1049 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1050
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1051 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1052 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 1053
1352 create_pipe (); 1054 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1055
1056 reinit ();
1057}
1058
1356void 1059void
1060reinit ()
1061 PROTOTYPE:
1062
1063void
1357max_poll_reqs (int nreqs) 1064max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1065 PROTOTYPE: $
1359 CODE: 1066 CODE:
1360 max_poll_reqs = nreqs; 1067 eio_set_max_poll_reqs (nreqs);
1361 1068
1362void 1069void
1363max_poll_time (double nseconds) 1070max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1071 PROTOTYPE: $
1365 CODE: 1072 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1073 eio_set_max_poll_time (nseconds);
1367 1074
1368void 1075void
1369min_parallel (int nthreads) 1076min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1077 PROTOTYPE: $
1379 CODE: 1078 CODE:
1380 set_max_idle (nthreads); 1079 eio_set_min_parallel (nthreads);
1381 1080
1382int 1081void
1383max_outstanding (int maxreqs) 1082max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1083 PROTOTYPE: $
1385 CODE: 1084 CODE:
1386 RETVAL = max_outstanding; 1085 eio_set_max_parallel (nthreads);
1086
1087void
1088max_idle (unsigned int nthreads)
1089 PROTOTYPE: $
1090 CODE:
1091 eio_set_max_idle (nthreads);
1092
1093void
1094idle_timeout (unsigned int seconds)
1095 PROTOTYPE: $
1096 CODE:
1097 eio_set_idle_timeout (seconds);
1098
1099void
1100max_outstanding (unsigned int maxreqs)
1101 PROTOTYPE: $
1102 CODE:
1387 max_outstanding = maxreqs; 1103 max_outstanding = maxreqs;
1388 OUTPUT: 1104
1389 RETVAL 1105void
1106aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1107 PPCODE:
1108{
1109 dREQ;
1110
1111 req->type = EIO_WD_OPEN;
1112 req_set_path1 (req, pathname);
1113
1114 REQ_SEND;
1115}
1390 1116
1391void 1117void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1118aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1119 PPCODE:
1395{ 1120{
1396 dREQ; 1121 dREQ;
1397 1122
1398 req->type = REQ_OPEN; 1123 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1124 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1125 req->int1 = flags;
1402 req->mode = mode; 1126 req->int2 = mode;
1403 1127
1404 REQ_SEND; 1128 REQ_SEND;
1405} 1129}
1406 1130
1407void 1131void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1132aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1133 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1134 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1135 aio_fdatasync = EIO_FDATASYNC
1136 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1137 PPCODE:
1415{ 1138{
1139 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1140 dREQ;
1417 1141
1418 req->type = ix; 1142 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1143 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1144 req->int1 = fd;
1421 1145
1422 REQ_SEND (req); 1146 REQ_SEND;
1423} 1147}
1424 1148
1425void 1149void
1150aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1151 PPCODE:
1152{
1153 int fd = s_fileno_croak (fh, 0);
1154 dREQ;
1155
1156 req->type = EIO_SYNC_FILE_RANGE;
1157 req->sv1 = newSVsv (fh);
1158 req->int1 = fd;
1159 req->offs = offset;
1160 req->size = nbytes;
1161 req->int2 = flags;
1162
1163 REQ_SEND;
1164}
1165
1166void
1167aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1168 PPCODE:
1169{
1170 int fd = s_fileno_croak (fh, 0);
1171 dREQ;
1172
1173 req->type = EIO_FALLOCATE;
1174 req->sv1 = newSVsv (fh);
1175 req->int1 = fd;
1176 req->int2 = mode;
1177 req->offs = offset;
1178 req->size = len;
1179
1180 REQ_SEND;
1181}
1182
1183void
1184aio_close (SV *fh, SV *callback=&PL_sv_undef)
1185 PPCODE:
1186{
1187 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1188 int fd = s_fileno_croak (fh, 0);
1189 dREQ;
1190
1191 if (expect_false (close_fd < 0))
1192 {
1193 int pipefd [2];
1194
1195 if (
1196#ifdef _WIN32
1197 _pipe (pipefd, 1, _O_BINARY) < 0
1198#else
1199 pipe (pipefd) < 0
1200 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1201#endif
1202 || close (pipefd [1]) < 0
1203 )
1204 abort (); /*D*/
1205
1206 close_fd = pipefd [0];
1207 }
1208
1209 req->type = EIO_DUP2;
1210 req->int1 = close_fd;
1211 req->sv2 = newSVsv (fh);
1212 req->int2 = fd;
1213
1214 REQ_SEND;
1215}
1216
1217void
1218aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1219 PPCODE:
1220{
1221 STRLEN svlen;
1222 int fd = s_fileno_croak (fh, 0);
1223 dREQ;
1224
1225 req->type = EIO_SEEK;
1226 req->sv1 = newSVsv (fh);
1227 req->int1 = fd;
1228 req->offs = SvVAL64 (offset);
1229 req->int2 = whence;
1230
1231 REQ_SEND;
1232}
1233
1234void
1426aio_read (SV *fh, SV *offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1235aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1427 ALIAS: 1236 ALIAS:
1428 aio_read = REQ_READ 1237 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1238 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1239 PPCODE:
1432{ 1240{
1433 STRLEN svlen; 1241 STRLEN svlen;
1242 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1243 char *svptr = SvPVbyte (data, svlen);
1435 1244 UV len = SvUV (length);
1436 SvUPGRADE (data, SVt_PV);
1437 SvPOK_on (data);
1438 1245
1439 if (dataoffset < 0) 1246 if (dataoffset < 0)
1440 dataoffset += svlen; 1247 dataoffset += svlen;
1441 1248
1442 if (dataoffset < 0 || dataoffset > svlen) 1249 if (dataoffset < 0 || dataoffset > svlen)
1443 croak ("data offset outside of string"); 1250 croak ("dataoffset outside of data scalar");
1444 1251
1445 if (ix == REQ_WRITE) 1252 if (ix == EIO_WRITE)
1446 { 1253 {
1447 /* write: check length and adjust. */ 1254 /* write: check length and adjust. */
1448 if (length < 0 || length + dataoffset > svlen) 1255 if (!SvOK (length) || len + dataoffset > svlen)
1449 length = svlen - dataoffset; 1256 len = svlen - dataoffset;
1450 } 1257 }
1451 else 1258 else
1452 { 1259 {
1453 /* read: grow scalar as necessary */ 1260 /* read: check type and grow scalar as necessary */
1261 SvUPGRADE (data, SVt_PV);
1454 svptr = SvGROW (data, length + dataoffset + 1); 1262 svptr = SvGROW (data, len + dataoffset + 1);
1455 } 1263 }
1456
1457 if (length < 0)
1458 croak ("length must not be negative");
1459 1264
1460 { 1265 {
1461 dREQ; 1266 dREQ;
1462 1267
1463 req->type = ix; 1268 req->type = ix;
1464 req->sv1 = newSVsv (fh); 1269 req->sv1 = newSVsv (fh);
1465 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1270 req->int1 = fd;
1466 : IoOFP (sv_2io (fh)));
1467 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1271 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1468 req->size = length; 1272 req->size = len;
1469 req->sv2 = SvREFCNT_inc (data); 1273 req->sv2 = SvREFCNT_inc (data);
1470 req->ptr1 = (char *)svptr + dataoffset; 1274 req->ptr2 = (char *)svptr + dataoffset;
1471 req->stroffset = dataoffset; 1275 req->stroffset = dataoffset;
1472 1276
1473 if (!SvREADONLY (data)) 1277 if (!SvREADONLY (data))
1474 { 1278 {
1475 SvREADONLY_on (data); 1279 SvREADONLY_on (data);
… …
1479 REQ_SEND; 1283 REQ_SEND;
1480 } 1284 }
1481} 1285}
1482 1286
1483void 1287void
1484aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1288aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1485 PROTOTYPE: $$;$ 1289 ALIAS:
1290 aio_readlink = EIO_READLINK
1291 aio_realpath = EIO_REALPATH
1486 PPCODE: 1292 PPCODE:
1487{ 1293{
1488 SV *data;
1489 dREQ; 1294 dREQ;
1490 1295
1491 data = newSV (NAME_MAX);
1492 SvPOK_on (data);
1493
1494 req->type = REQ_READLINK; 1296 req->type = ix;
1495 req->sv1 = newSVsv (path); 1297 req_set_path1 (req, pathname);
1496 req->ptr2 = SvPVbyte_nolen (req->sv1);
1497 req->sv2 = data;
1498 req->ptr1 = SvPVbyte_nolen (data);
1499 1298
1500 REQ_SEND; 1299 REQ_SEND;
1501} 1300}
1502 1301
1503void 1302void
1504aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1303aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $$$$;$
1506 PPCODE: 1304 PPCODE:
1507{ 1305{
1306 int ifd = s_fileno_croak (in_fh , 0);
1307 int ofd = s_fileno_croak (out_fh, 1);
1508 dREQ; 1308 dREQ;
1509 1309
1510 req->type = REQ_SENDFILE; 1310 req->type = EIO_SENDFILE;
1511 req->sv1 = newSVsv (out_fh); 1311 req->sv1 = newSVsv (out_fh);
1512 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1312 req->int1 = ofd;
1513 req->sv2 = newSVsv (in_fh); 1313 req->sv2 = newSVsv (in_fh);
1514 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1314 req->int2 = ifd;
1515 req->offs = SvVAL64 (in_offset); 1315 req->offs = in_offset;
1516 req->size = length; 1316 req->size = length;
1517 1317
1518 REQ_SEND; 1318 REQ_SEND;
1519} 1319}
1520 1320
1521void 1321void
1522aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1322aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1523 PROTOTYPE: $$$;$
1524 PPCODE: 1323 PPCODE:
1525{ 1324{
1325 int fd = s_fileno_croak (fh, 0);
1526 dREQ; 1326 dREQ;
1527 1327
1528 req->type = REQ_READAHEAD; 1328 req->type = EIO_READAHEAD;
1529 req->sv1 = newSVsv (fh); 1329 req->sv1 = newSVsv (fh);
1530 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1330 req->int1 = fd;
1531 req->offs = SvVAL64 (offset); 1331 req->offs = offset;
1532 req->size = length; 1332 req->size = length;
1533 1333
1534 REQ_SEND; 1334 REQ_SEND;
1535} 1335}
1536 1336
1537void 1337void
1538aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1338aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1539 ALIAS: 1339 ALIAS:
1540 aio_stat = REQ_STAT 1340 aio_stat = EIO_STAT
1541 aio_lstat = REQ_LSTAT 1341 aio_lstat = EIO_LSTAT
1342 aio_statvfs = EIO_STATVFS
1542 PPCODE: 1343 PPCODE:
1543{ 1344{
1544 dREQ; 1345 dREQ;
1545 1346
1546 req->ptr2 = malloc (sizeof (Stat_t)); 1347 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 1348
1567 REQ_SEND; 1349 REQ_SEND;
1568} 1350}
1351
1352UV
1353major (UV dev)
1354 ALIAS:
1355 minor = 1
1356 CODE:
1357 RETVAL = ix ? major (dev) : minor (dev);
1358 OUTPUT:
1359 RETVAL
1360
1361UV
1362makedev (UV maj, UV min)
1363 CODE:
1364 RETVAL = makedev (maj, min);
1365 OUTPUT:
1366 RETVAL
1569 1367
1570void 1368void
1571aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1369aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1572 PPCODE: 1370 PPCODE:
1573{ 1371{
1574 dREQ; 1372 dREQ;
1575 1373
1576 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1374 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1577 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1375 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1578 req->sv1 = newSVsv (fh_or_path); 1376 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1579 1377
1580 if (SvPOK (fh_or_path)) 1378 REQ_SEND;
1581 { 1379}
1582 req->type = REQ_UTIME; 1380
1583 req->ptr1 = SvPVbyte_nolen (req->sv1); 1381void
1584 } 1382aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1585 else 1383 PPCODE:
1586 { 1384{
1587 req->type = REQ_FUTIME; 1385 dREQ;
1588 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1386
1589 } 1387 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1388 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1590 1389
1591 REQ_SEND; 1390 REQ_SEND;
1592} 1391}
1593 1392
1594void 1393void
1595aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1394aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1596 PPCODE: 1395 PPCODE:
1597{ 1396{
1598 dREQ; 1397 dREQ;
1599 1398
1600 req->mode = mode; 1399 req->int2 = mode;
1601 req->sv1 = newSVsv (fh_or_path); 1400 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 1401
1614 REQ_SEND; 1402 REQ_SEND;
1615} 1403}
1616 1404
1617void 1405void
… …
1620{ 1408{
1621 dREQ; 1409 dREQ;
1622 1410
1623 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1411 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1624 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1412 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1625 req->sv1 = newSVsv (fh_or_path); 1413 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1626 1414
1627 if (SvPOK (fh_or_path)) 1415 REQ_SEND;
1628 { 1416}
1629 req->type = REQ_CHOWN; 1417
1630 req->ptr1 = SvPVbyte_nolen (req->sv1); 1418void
1631 } 1419aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1632 else 1420 PPCODE:
1633 { 1421{
1634 req->type = REQ_FCHOWN; 1422 dREQ;
1635 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1423
1636 } 1424 req->type = EIO_READDIR;
1425 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1426
1427 if (flags & EIO_READDIR_DENTS)
1428 req->int1 |= EIO_READDIR_CUSTOM2;
1429
1430 req_set_path1 (req, pathname);
1431
1432 REQ_SEND;
1433}
1434
1435void
1436aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1437 PPCODE:
1438{
1439 dREQ;
1440
1441 req->type = EIO_MKDIR;
1442 req->int2 = mode;
1443 req_set_path1 (req, pathname);
1637 1444
1638 REQ_SEND; 1445 REQ_SEND;
1639} 1446}
1640 1447
1641void 1448void
1642aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1449aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1643 ALIAS: 1450 ALIAS:
1644 aio_unlink = REQ_UNLINK 1451 aio_unlink = EIO_UNLINK
1645 aio_rmdir = REQ_RMDIR 1452 aio_rmdir = EIO_RMDIR
1646 aio_readdir = REQ_READDIR 1453 aio_readdir = EIO_READDIR
1647 PPCODE: 1454 PPCODE:
1648{ 1455{
1649 dREQ; 1456 dREQ;
1650 1457
1651 req->type = ix; 1458 req->type = ix;
1652 req->sv1 = newSVsv (pathname); 1459 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 1460
1669 REQ_SEND; 1461 REQ_SEND;
1670} 1462}
1671 1463
1672void 1464void
1673aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1465aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1674 ALIAS: 1466 ALIAS:
1675 aio_link = REQ_LINK 1467 aio_link = EIO_LINK
1676 aio_symlink = REQ_SYMLINK 1468 aio_symlink = EIO_SYMLINK
1677 aio_rename = REQ_RENAME 1469 aio_rename = EIO_RENAME
1678 PPCODE: 1470 PPCODE:
1679{ 1471{
1472 eio_wd wd2 = 0;
1680 dREQ; 1473 dREQ;
1681 1474
1682 req->type = ix; 1475 req->type = ix;
1683 req->sv2 = newSVsv (oldpath); 1476 req_set_path1 (req, oldpath);
1684 req->ptr2 = SvPVbyte_nolen (req->sv2); 1477 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1685 req->sv1 = newSVsv (newpath); 1478 req->int3 = (long)wd2;
1686 req->ptr1 = SvPVbyte_nolen (req->sv1);
1687 1479
1688 REQ_SEND; 1480 REQ_SEND;
1689} 1481}
1690 1482
1691void 1483void
1692aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1484aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1693 PPCODE: 1485 PPCODE:
1694{ 1486{
1695 dREQ; 1487 dREQ;
1696 1488
1697 req->type = REQ_MKNOD; 1489 req->type = EIO_MKNOD;
1698 req->sv1 = newSVsv (pathname);
1699 req->ptr1 = SvPVbyte_nolen (req->sv1);
1700 req->mode = (mode_t)mode; 1490 req->int2 = (mode_t)mode;
1701 req->offs = dev; 1491 req->offs = dev;
1492 req_set_path1 (req, pathname);
1702 1493
1703 REQ_SEND; 1494 REQ_SEND;
1704} 1495}
1705 1496
1706void 1497void
1498aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1499 ALIAS:
1500 aio_mtouch = EIO_MTOUCH
1501 aio_msync = EIO_MSYNC
1502 PPCODE:
1503{
1504 STRLEN svlen;
1505 char *svptr = SvPVbyte (data, svlen);
1506 UV len = SvUV (length);
1507
1508 if (offset < 0)
1509 offset += svlen;
1510
1511 if (offset < 0 || offset > svlen)
1512 croak ("offset outside of scalar");
1513
1514 if (!SvOK (length) || len + offset > svlen)
1515 len = svlen - offset;
1516
1517 {
1518 dREQ;
1519
1520 req->type = ix;
1521 req->sv2 = SvREFCNT_inc (data);
1522 req->ptr2 = (char *)svptr + offset;
1523 req->size = len;
1524 req->int1 = flags;
1525
1526 REQ_SEND;
1527 }
1528}
1529
1530void
1531aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1532 PPCODE:
1533{
1534 STRLEN svlen;
1535 char *svptr = SvPVbyte (data, svlen);
1536 UV len = SvUV (length);
1537
1538 if (offset < 0)
1539 offset += svlen;
1540
1541 if (offset < 0 || offset > svlen)
1542 croak ("offset outside of scalar");
1543
1544 if (!SvOK (length) || len + offset > svlen)
1545 len = svlen - offset;
1546
1547 {
1548 dREQ;
1549
1550 req->type = EIO_MLOCK;
1551 req->sv2 = SvREFCNT_inc (data);
1552 req->ptr2 = (char *)svptr + offset;
1553 req->size = len;
1554
1555 REQ_SEND;
1556 }
1557}
1558
1559void
1560aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1561 PPCODE:
1562{
1563 dREQ;
1564
1565 req->type = EIO_MLOCKALL;
1566 req->int1 = flags;
1567
1568 REQ_SEND;
1569}
1570
1571void
1707aio_busy (double delay, SV *callback=&PL_sv_undef) 1572aio_busy (double delay, SV *callback=&PL_sv_undef)
1708 PPCODE: 1573 PPCODE:
1709{ 1574{
1710 dREQ; 1575 dREQ;
1711 1576
1712 req->type = REQ_BUSY; 1577 req->type = EIO_BUSY;
1713 req->nv1 = delay < 0. ? 0. : delay; 1578 req->nv1 = delay < 0. ? 0. : delay;
1714 1579
1715 REQ_SEND; 1580 REQ_SEND;
1716} 1581}
1717 1582
1718void 1583void
1719aio_group (SV *callback=&PL_sv_undef) 1584aio_group (SV *callback=&PL_sv_undef)
1720 PROTOTYPE: ;$
1721 PPCODE: 1585 PPCODE:
1722{ 1586{
1723 dREQ; 1587 dREQ;
1724 1588
1725 req->type = REQ_GROUP; 1589 req->type = EIO_GROUP;
1726 1590
1727 req_send (req); 1591 req_submit (req);
1728 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1592 XPUSHs (req_sv (req, aio_grp_stash));
1729} 1593}
1730 1594
1731void 1595void
1732aio_nop (SV *callback=&PL_sv_undef) 1596aio_nop (SV *callback=&PL_sv_undef)
1597 ALIAS:
1598 aio_nop = EIO_NOP
1599 aio_sync = EIO_SYNC
1733 PPCODE: 1600 PPCODE:
1734{ 1601{
1735 dREQ; 1602 dREQ;
1736 1603
1737 req->type = REQ_NOP; 1604 req->type = ix;
1738 1605
1739 REQ_SEND; 1606 REQ_SEND;
1740} 1607}
1741 1608
1742int 1609int
1743aioreq_pri (int pri = 0) 1610aioreq_pri (int pri = 0)
1744 PROTOTYPE: ;$
1745 CODE: 1611 CODE:
1746 RETVAL = next_pri - PRI_BIAS; 1612 RETVAL = next_pri;
1747 if (items > 0) 1613 if (items > 0)
1748 { 1614 {
1749 if (pri < PRI_MIN) pri = PRI_MIN; 1615 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1750 if (pri > PRI_MAX) pri = PRI_MAX; 1616 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1751 next_pri = pri + PRI_BIAS; 1617 next_pri = pri;
1752 } 1618 }
1753 OUTPUT: 1619 OUTPUT:
1754 RETVAL 1620 RETVAL
1755 1621
1756void 1622void
1757aioreq_nice (int nice = 0) 1623aioreq_nice (int nice = 0)
1758 CODE: 1624 CODE:
1759 nice = next_pri - nice; 1625 nice = next_pri - nice;
1760 if (nice < PRI_MIN) nice = PRI_MIN; 1626 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1761 if (nice > PRI_MAX) nice = PRI_MAX; 1627 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1762 next_pri = nice + PRI_BIAS; 1628 next_pri = nice;
1763 1629
1764void 1630void
1765flush () 1631flush ()
1766 PROTOTYPE:
1767 CODE: 1632 CODE:
1768 while (nreqs) 1633 while (eio_nreqs ())
1769 { 1634 {
1770 poll_wait (); 1635 poll_wait ();
1771 poll_cb (); 1636 poll_cb ();
1772 } 1637 }
1773 1638
1774int 1639int
1775poll() 1640poll ()
1776 PROTOTYPE:
1777 CODE: 1641 CODE:
1778 poll_wait (); 1642 poll_wait ();
1779 RETVAL = poll_cb (); 1643 RETVAL = poll_cb ();
1780 OUTPUT: 1644 OUTPUT:
1781 RETVAL 1645 RETVAL
1782 1646
1783int 1647int
1784poll_fileno() 1648poll_fileno ()
1785 PROTOTYPE:
1786 CODE: 1649 CODE:
1787 RETVAL = respipe [0]; 1650 RETVAL = s_epipe_fd (&respipe);
1788 OUTPUT: 1651 OUTPUT:
1789 RETVAL 1652 RETVAL
1790 1653
1791int 1654int
1792poll_cb(...) 1655poll_cb (...)
1793 PROTOTYPE: 1656 PROTOTYPE:
1794 CODE: 1657 CODE:
1795 RETVAL = poll_cb (); 1658 RETVAL = poll_cb ();
1796 OUTPUT: 1659 OUTPUT:
1797 RETVAL 1660 RETVAL
1798 1661
1799void 1662void
1800poll_wait() 1663poll_wait ()
1801 PROTOTYPE:
1802 CODE: 1664 CODE:
1803 poll_wait (); 1665 poll_wait ();
1804 1666
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 1667int
1843nreqs() 1668nreqs ()
1844 PROTOTYPE:
1845 CODE: 1669 CODE:
1846 RETVAL = nreqs; 1670 RETVAL = eio_nreqs ();
1847 OUTPUT: 1671 OUTPUT:
1848 RETVAL 1672 RETVAL
1849 1673
1850int 1674int
1851nready() 1675nready ()
1852 PROTOTYPE:
1853 CODE: 1676 CODE:
1854 RETVAL = get_nready (); 1677 RETVAL = eio_nready ();
1855 OUTPUT: 1678 OUTPUT:
1856 RETVAL 1679 RETVAL
1857 1680
1858int 1681int
1859npending() 1682npending ()
1860 PROTOTYPE:
1861 CODE: 1683 CODE:
1862 RETVAL = get_npending (); 1684 RETVAL = eio_npending ();
1863 OUTPUT: 1685 OUTPUT:
1864 RETVAL 1686 RETVAL
1865 1687
1866int 1688int
1867nthreads() 1689nthreads ()
1868 PROTOTYPE:
1869 CODE: 1690 CODE:
1870 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1691 RETVAL = eio_nthreads ();
1871 RETVAL = started;
1872 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1873 OUTPUT: 1692 OUTPUT:
1874 RETVAL 1693 RETVAL
1875 1694
1695int
1696fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1697 CODE:
1698 RETVAL = posix_fadvise (fh, offset, length, advice);
1699 OUTPUT:
1700 RETVAL
1701
1702IV
1703sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1704 CODE:
1705 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706 OUTPUT:
1707 RETVAL
1708
1709void
1710mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1711 PPCODE:
1712 sv_unmagic (scalar, MMAP_MAGIC);
1713{
1714 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1716 if (addr == (void *)-1)
1717 XSRETURN_NO;
1718
1719 sv_force_normal (scalar);
1720
1721 /* we store the length in mg_obj, as namlen is I32 :/ */
1722 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1723 ->mg_obj = (SV *)length;
1724
1725 SvUPGRADE (scalar, SVt_PV); /* nop... */
1726
1727 if (!(prot & PROT_WRITE))
1728 SvREADONLY_on (scalar);
1729
1730 if (SvLEN (scalar))
1731 Safefree (SvPVX (scalar));
1732
1733 SvPVX (scalar) = (char *)addr;
1734 SvCUR_set (scalar, length);
1735 SvLEN_set (scalar, 0);
1736 SvPOK_only (scalar);
1737
1738 XSRETURN_YES;
1739}
1740
1741void
1742munmap (SV *scalar)
1743 CODE:
1744 sv_unmagic (scalar, MMAP_MAGIC);
1745
1746int
1747madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1748 ALIAS:
1749 mprotect = 1
1750 CODE:
1751{
1752 STRLEN svlen;
1753 void *addr = SvPVbyte (scalar, svlen);
1754 size_t len = SvUV (length);
1755
1756 if (offset < 0)
1757 offset += svlen;
1758
1759 if (offset < 0 || offset > svlen)
1760 croak ("offset outside of scalar");
1761
1762 if (!SvOK (length) || len + offset > svlen)
1763 len = svlen - offset;
1764
1765 addr = (void *)(((intptr_t)addr) + offset);
1766 eio_page_align (&addr, &len);
1767
1768 switch (ix)
1769 {
1770 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1771 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1772 }
1773}
1774 OUTPUT:
1775 RETVAL
1776
1777int
1778munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1779 CODE:
1780{
1781 STRLEN svlen;
1782 void *addr = SvPVbyte (scalar, svlen);
1783 size_t len = SvUV (length);
1784
1785 if (offset < 0)
1786 offset += svlen;
1787
1788 if (offset < 0 || offset > svlen)
1789 croak ("offset outside of scalar");
1790
1791 if (!SvOK (length) || len + offset > svlen)
1792 len = svlen - offset;
1793
1794 addr = (void *)(((intptr_t)addr) + offset);
1795 eio_page_align (&addr, &len);
1796#if _POSIX_MEMLOCK_RANGE
1797 RETVAL = munlock (addr, len);
1798#else
1799 RETVAL = ((errno = ENOSYS), -1);
1800#endif
1801}
1802 OUTPUT:
1803 RETVAL
1804
1805int
1806munlockall ()
1807 CODE:
1808#if _POSIX_MEMLOCK
1809 munlockall ();
1810#else
1811 RETVAL = -1;
1812 errno = ENOSYS;
1813#endif
1814 OUTPUT:
1815 RETVAL
1816
1817void _on_next_submit (SV *cb)
1818 CODE:
1819 SvREFCNT_dec (on_next_submit);
1820 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1821
1876PROTOTYPES: DISABLE 1822PROTOTYPES: DISABLE
1823
1824MODULE = IO::AIO PACKAGE = IO::AIO::WD
1825
1826BOOT:
1827{
1828 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1829 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1830}
1831
1832void
1833DESTROY (SV *self)
1834 CODE:
1835{
1836 aio_wd wd = SvAIO_WD (self);
1837#if HAVE_AT
1838 {
1839 SV *callback = &PL_sv_undef;
1840 dREQ; /* clobbers next_pri :/ */
1841 next_pri = req->pri; /* restore next_pri */
1842 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1843 req->type = EIO_WD_CLOSE;
1844 req->wd = wd;
1845 REQ_SEND;
1846 }
1847#else
1848 eio_wd_close_sync (wd);
1849#endif
1850}
1877 1851
1878MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1852MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1879 1853
1880void 1854void
1881cancel (aio_req_ornot req) 1855cancel (aio_req_ornot req)
1882 CODE: 1856 CODE:
1883 req_cancel (req); 1857 eio_cancel (req);
1884 1858
1885void 1859void
1886cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1860cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1887 CODE: 1861 PPCODE:
1862{
1863 if (GIMME_V != G_VOID)
1864 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1865
1866 if (items > 1)
1867 {
1868 SV *cb_cv =get_cb (callback);
1869
1888 SvREFCNT_dec (req->callback); 1870 SvREFCNT_dec (req->callback);
1889 req->callback = newSVsv (callback); 1871 req->callback = SvREFCNT_inc (cb_cv);
1872 }
1873}
1890 1874
1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1875MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1892 1876
1893void 1877void
1894add (aio_req grp, ...) 1878add (aio_req grp, ...)
1895 PPCODE: 1879 PPCODE:
1896{ 1880{
1897 int i; 1881 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 1882
1903 if (grp->int1 == 2) 1883 if (grp->int1 == 2)
1904 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1884 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1905 1885
1906 for (i = 1; i < items; ++i ) 1886 for (i = 1; i < items; ++i )
1907 { 1887 {
1888 aio_req req;
1889
1908 if (GIMME_V != G_VOID) 1890 if (GIMME_V != G_VOID)
1909 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1891 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1910 1892
1911 req = SvAIO_REQ (ST (i)); 1893 req = SvAIO_REQ (ST (i));
1912 1894
1913 if (req) 1895 if (req)
1914 { 1896 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 } 1897 }
1927} 1898}
1928 1899
1929void 1900void
1930cancel_subs (aio_req_ornot req) 1901cancel_subs (aio_req_ornot req)
… …
1939 AV *av; 1910 AV *av;
1940 1911
1941 grp->errorno = errno; 1912 grp->errorno = errno;
1942 1913
1943 av = newAV (); 1914 av = newAV ();
1915 av_extend (av, items - 1);
1944 1916
1945 for (i = 1; i < items; ++i ) 1917 for (i = 1; i < items; ++i )
1946 av_push (av, newSVsv (ST (i))); 1918 av_push (av, newSVsv (ST (i)));
1947 1919
1948 SvREFCNT_dec (grp->sv1); 1920 SvREFCNT_dec (grp->sv1);
… …
1955 grp->errorno = errorno; 1927 grp->errorno = errorno;
1956 1928
1957void 1929void
1958limit (aio_req grp, int limit) 1930limit (aio_req grp, int limit)
1959 CODE: 1931 CODE:
1960 grp->int2 = limit; 1932 eio_grp_limit (grp, limit);
1961 aio_grp_feed (grp);
1962 1933
1963void 1934void
1964feed (aio_req grp, SV *callback=&PL_sv_undef) 1935feed (aio_req grp, SV *callback=&PL_sv_undef)
1965 CODE: 1936 CODE:
1966{ 1937{
1967 SvREFCNT_dec (grp->sv2); 1938 SvREFCNT_dec (grp->sv2);
1968 grp->sv2 = newSVsv (callback); 1939 grp->sv2 = newSVsv (callback);
1940 grp->feed = aio_grp_feed;
1969 1941
1970 if (grp->int2 <= 0) 1942 if (grp->int2 <= 0)
1971 grp->int2 = 2; 1943 grp->int2 = 2;
1972 1944
1973 aio_grp_feed (grp); 1945 eio_grp_limit (grp, grp->int2);
1974} 1946}
1975 1947

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