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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.102 by root, Sun Jun 3 09:44:17 2007 UTC vs.
Revision 1.196 by root, Tue Sep 27 00:41:51 2011 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#else
68
69 #include <sys/time.h>
70 #include <sys/select.h>
71 #include <unistd.h>
23#include <utime.h> 72 #include <utime.h>
73 #include <signal.h>
24 74
25#if HAVE_SENDFILE
26# if __linux
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 75#endif
38#endif
39 76
40/* number of seconds after which idle threads exit */ 77#define EIO_STRUCT_STAT Stat_t
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 78
51/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
52#if IVSIZE >= 8 80#if IVSIZE >= 8
81# define VAL64 IV
53# define SvVAL64 SvIV 82# define SvVAL64 SvIV
83# define newSVval64 newSViv
54#else 84#else
85# define VAL64 NV
55# define SvVAL64 SvNV 86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
56#endif 88#endif
57 89
58#define dBUF \ 90/*****************************************************************************/
59 char *aio_buf; \ 91
60 LOCK (wrklock); \ 92#if __GNUC__ >= 3
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 93# define expect(expr,value) __builtin_expect ((expr),(value))
62 UNLOCK (wrklock); \ 94#else
63 if (!aio_buf) \ 95# define expect(expr,value) (expr)
64 return -1; 96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
65 102
66typedef SV SV8; /* byte-sv, used for argument-checking */ 103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314
315#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif
67 328
68enum { 329enum {
69 REQ_QUIT, 330 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}; 331};
84 332
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; 333typedef eio_req *aio_req;
120typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
121 336
122enum { 337static SV *on_next_submit;
123 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
124 PRI_MAX = 4, 339static int max_outstanding;
125 340
126 DEFAULT_PRI = 0, 341static s_epipe respipe;
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130 342
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); 343static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
331 345
346static void want_poll (void)
347{
348 /* write a dummy byte to the pipe so fh becomes ready */
349 s_epipe_signal (&respipe);
350}
351
352static void done_poll (void)
353{
354 /* read any signals sent by the worker threads */
355 s_epipe_drain (&respipe);
356}
357
332/* must be called at most once */ 358/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 359static SV *req_sv (aio_req req, HV *stash)
334{ 360{
335 if (!req->self) 361 if (!req->self)
336 { 362 {
337 req->self = (SV *)newHV (); 363 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 365 }
340 366
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 367 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
368}
369
370static SV *
371newSVaio_wd (aio_wd wd)
372{
373 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
342} 374}
343 375
344static aio_req SvAIO_REQ (SV *sv) 376static aio_req SvAIO_REQ (SV *sv)
345{ 377{
346 MAGIC *mg; 378 MAGIC *mg;
347 379
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 380 if (!SvROK (sv)
381 || (SvSTASH (SvRV (sv)) != aio_grp_stash
382 && SvSTASH (SvRV (sv)) != aio_req_stash
383 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 384 croak ("object of class IO::AIO::REQ expected");
350 385
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 386 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 387
353 return mg ? (aio_req)mg->mg_ptr : 0; 388 return mg ? (aio_req)mg->mg_ptr : 0;
354} 389}
355 390
391static aio_wd SvAIO_WD (SV *sv)
392{
393 if (!SvROK (sv)
394 || SvSTASH (SvRV (sv)) != aio_wd_stash
395 || SvTYPE (SvRV (sv)) != SVt_PVMG)
396 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
397
398 return (aio_wd)(long)SvIVX (SvRV (sv));
399}
400
356static void aio_grp_feed (aio_req grp) 401static void aio_grp_feed (aio_req grp)
357{ 402{
358 block_sig (); 403 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 404 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 405 dSP;
367 406
368 ENTER; 407 ENTER;
369 SAVETMPS; 408 SAVETMPS;
370 PUSHMARK (SP); 409 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 410 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 411 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 412 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 413 SPAGAIN;
375 FREETMPS; 414 FREETMPS;
376 LEAVE; 415 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 } 416 }
387
388 unblock_sig ();
389} 417}
390 418
391static void aio_grp_dec (aio_req grp) 419static void req_submit (eio_req *req)
392{ 420{
393 --grp->size; 421 eio_submit (req);
394 422
395 /* call feeder, if applicable */ 423 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 424 {
401 block_sig (); 425 dSP;
426 SV *cb = sv_2mortal (on_next_submit);
402 427
403 if (!req_invoke (grp)) 428 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 429
410 req_destroy (grp); 430 PUSHMARK (SP);
411 unblock_sig (); 431 PUTBACK;
432 call_sv (cb, G_DISCARD | G_EVAL);
412 } 433 }
413} 434}
414 435
415static int req_invoke (aio_req req) 436static int req_invoke (eio_req *req)
416{ 437{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 438 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 439 SvREADONLY_off (req->sv2);
421 440
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 441 if (!EIO_CANCELLED (req) && req->callback)
423 { 442 {
443 dSP;
444 static SV *sv_result_cache; /* caches the result integer SV */
445 SV *sv_result;
446
424 ENTER; 447 ENTER;
425 SAVETMPS; 448 SAVETMPS;
426 PUSHMARK (SP); 449 PUSHMARK (SP);
427 EXTEND (SP, 1); 450 EXTEND (SP, 1);
428 451
452 /* do not recreate the result IV from scratch each time */
453 if (expect_true (sv_result_cache))
454 {
455 sv_result = sv_result_cache; sv_result_cache = 0;
456 SvIV_set (sv_result, req->result);
457 SvIOK_only (sv_result);
458 }
459 else
460 {
461 sv_result = newSViv (req->result);
462 SvREADONLY_on (sv_result);
463 }
464
429 switch (req->type) 465 switch (req->type)
430 { 466 {
467 case EIO_WD_OPEN:
468 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
469 break;
470
431 case REQ_READDIR: 471 case EIO_READDIR:
432 { 472 {
433 SV *rv = &PL_sv_undef; 473 SV *rv = &PL_sv_undef;
434 474
435 if (req->result >= 0) 475 if (req->result >= 0)
436 { 476 {
437 int i; 477 int i;
438 char *buf = req->ptr2; 478 char *names = (char *)req->ptr2;
479 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 480 AV *av = newAV ();
440 481
441 av_extend (av, req->result - 1); 482 av_extend (av, req->result - 1);
442 483
443 for (i = 0; i < req->result; ++i) 484 for (i = 0; i < req->result; ++i)
444 { 485 {
445 SV *sv = newSVpv (buf, 0); 486 if (req->int1 & EIO_READDIR_DENTS)
487 {
488 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 489
490 if (req->int1 & EIO_READDIR_CUSTOM2)
491 {
492 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
493 AV *avent = newAV ();
494
495 av_extend (avent, 2);
496
497 if (!sv_type [ent->type])
498 {
499 sv_type [ent->type] = newSViv (ent->type);
500 SvREADONLY_on (sv_type [ent->type]);
501 }
502
503 av_store (avent, 0, namesv);
504 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
505 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
506
507 av_store (av, i, newRV_noinc ((SV *)avent));
508 }
509 else
447 av_store (av, i, sv); 510 av_store (av, i, namesv);
511
512 ++ent;
513 }
514 else
515 {
516 SV *name = newSVpv (names, 0);
517 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 518 names += SvCUR (name) + 1;
519 }
449 } 520 }
450 521
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 522 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 523 }
453 524
454 PUSHs (rv); 525 PUSHs (rv);
526
527 if (req->int1 & EIO_READDIR_CUSTOM1)
528 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 529 }
456 break; 530 break;
457 531
458 case REQ_OPEN: 532 case EIO_OPEN:
459 { 533 {
460 /* convert fd to fh */ 534 /* convert fd to fh */
461 SV *fh; 535 SV *fh = &PL_sv_undef;
462 536
463 PUSHs (sv_2mortal (newSViv (req->result))); 537 if (req->result >= 0)
464 PUTBACK; 538 {
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 539 GV *gv = (GV *)sv_newmortal ();
466 SPAGAIN; 540 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
541 char sym [64];
542 int symlen;
543
544 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
545 gv_init (gv, aio_stash, sym, symlen, 0);
467 546
468 fh = POPs; 547 symlen = snprintf (
469 PUSHMARK (SP); 548 sym,
549 sizeof (sym),
550 "%s&=%d",
551 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
552 (int)req->result
553 );
554
555 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
556 fh = (SV *)gv;
557 }
558
470 XPUSHs (fh); 559 PUSHs (fh);
471 } 560 }
472 break; 561 break;
473 562
563 case EIO_STATVFS:
564 case EIO_FSTATVFS:
565 {
566 SV *rv = &PL_sv_undef;
567
568#ifndef _WIN32
569 if (req->result >= 0)
570 {
571 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
572 HV *hv = newHV ();
573
574 rv = sv_2mortal (newRV_noinc ((SV *)hv));
575
576 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
577 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
578 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
579 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
580 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
581 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
582 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
583 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
584 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
585 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
586 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
587 }
588#endif
589
590 PUSHs (rv);
591 }
592
593 break;
594
474 case REQ_GROUP: 595 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 596 req->int1 = 2; /* mark group as finished */
476 597
477 if (req->sv1) 598 if (req->sv1)
478 { 599 {
479 int i; 600 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 604 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 605 PUSHs (*av_fetch (av, i, 0));
485 } 606 }
486 break; 607 break;
487 608
488 case REQ_NOP: 609 case EIO_NOP:
489 case REQ_BUSY: 610 case EIO_BUSY:
490 break; 611 break;
491 612
492 case REQ_READLINK: 613 case EIO_READLINK:
614 case EIO_REALPATH:
493 if (req->result > 0) 615 if (req->result > 0)
494 { 616 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; 617 break;
500 618
501 case REQ_STAT: 619 case EIO_STAT:
502 case REQ_LSTAT: 620 case EIO_LSTAT:
503 case REQ_FSTAT: 621 case EIO_FSTAT:
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 622 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
505 PL_laststatval = req->result; 623 PL_laststatval = req->result;
624 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
506 PL_statcache = *(Stat_t *)(req->ptr2); 625 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
507 PUSHs (sv_2mortal (newSViv (req->result))); 626 PUSHs (sv_result);
508 break; 627 break;
509 628
510 case REQ_READ: 629 case EIO_READ:
630 {
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 631 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
512 *SvEND (req->sv2) = 0; 632 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result))); 633 SvPOK_only (req->sv2);
634 SvSETMAGIC (req->sv2);
635 PUSHs (sv_result);
636 }
514 break; 637 break;
515 638
639 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
640 if (req->result > 0)
641 SvIV_set (sv_result, 0);
642 /* FALLTHROUGH */
643
516 default: 644 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 645 PUSHs (sv_result);
518 break; 646 break;
519 } 647 }
520 648
521 errno = req->errorno; 649 errno = req->errorno;
522 650
523 PUTBACK; 651 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 652 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 653 SPAGAIN;
654
655 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
656 SvREFCNT_dec (sv_result);
657 else
658 sv_result_cache = sv_result;
526 659
527 FREETMPS; 660 FREETMPS;
528 LEAVE; 661 LEAVE;
662
663 PUTBACK;
529 } 664 }
530 665
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); 666 return !!SvTRUE (ERRSV);
546} 667}
547 668
548static void req_destroy (aio_req req) 669static void req_destroy (aio_req req)
549{ 670{
550 if (req->self) 671 if (req->self)
… …
553 SvREFCNT_dec (req->self); 674 SvREFCNT_dec (req->self);
554 } 675 }
555 676
556 SvREFCNT_dec (req->sv1); 677 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 678 SvREFCNT_dec (req->sv2);
679 SvREFCNT_dec (req->sv3);
680 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 681 SvREFCNT_dec (req->callback);
559 682
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 683 Safefree (req);
564} 684}
565 685
566static void req_cancel_subs (aio_req grp) 686static void req_cancel_subs (aio_req grp)
567{ 687{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 688 if (grp->type != EIO_GROUP)
571 return; 689 return;
572 690
573 SvREFCNT_dec (grp->sv2); 691 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 692 grp->sv2 = 0;
575 693
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 694 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 695}
579 696
580static void req_cancel (aio_req req) 697static void create_respipe (void)
581{ 698{
582 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
583 700 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 701}
586 702
587static void *aio_proc (void *arg);
588
589static void start_thread (void)
590{
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 () 703static void poll_wait (void)
683{ 704{
684 fd_set rfd;
685
686 while (nreqs) 705 while (eio_nreqs ())
687 { 706 {
688 int size; 707 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 708
709 X_LOCK (reslock);
690 size = res_queue.size; 710 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 711 X_UNLOCK (reslock);
692 712
693 if (size) 713 if (size)
694 return; 714 return;
695 715
696 maybe_start_thread (); 716 etp_maybe_start_thread ();
697 717
698 FD_ZERO(&rfd); 718 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 719 }
703} 720}
704 721
705static int poll_cb () 722static int poll_cb (void)
706{ 723{
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 (;;) 724 for (;;)
720 { 725 {
721 for (;;) 726 int res = eio_poll ();
722 {
723 maybe_start_thread ();
724 727
725 LOCK (reslock); 728 if (res > 0)
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 {
730 --npending;
731
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 }
753 else
754 {
755 if (!req_invoke (req))
756 {
757 req_destroy (req);
758 unblock_sig ();
759 croak (0); 729 croak (0);
760 }
761 730
762 count++; 731 if (!max_outstanding || max_outstanding > eio_nreqs ())
763 } 732 return res;
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 }
778
779 if (nreqs <= max_outstanding)
780 break;
781 733
782 poll_wait (); 734 poll_wait ();
783
784 ++maxreqs;
785 } 735 }
786
787 unblock_sig ();
788 return count;
789} 736}
790 737
791static void create_pipe () 738static void ecb_cold
739reinit (void)
792{ 740{
793 if (pipe (respipe)) 741 create_respipe ();
794 croak ("unable to initialize result pipe");
795 742
796 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 743 if (eio_init (want_poll, done_poll) < 0)
797 croak ("cannot set result pipe to nonblocking mode"); 744 croak ("IO::AIO: unable to initialise eio library");
798
799 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
800 croak ("cannot set result pipe to nonblocking mode");
801} 745}
802 746
803/*****************************************************************************/ 747/*****************************************************************************/
804/* work around various missing functions */
805 748
806#if !HAVE_PREADWRITE 749#if !_POSIX_MAPPED_FILES
807# define pread aio_pread 750# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
808# define pwrite aio_pwrite 751# define munmap(addr,length) (errno = ENOSYS, -1)
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 752#endif
977#else
978 res = -1;
979 errno = ENOSYS;
980#endif
981 753
982 if (res < 0 754#if !_POSIX_MEMORY_PROTECTION
983 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 755# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
984#if __solaris 756# define PROT_NONE 0
985 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 757# define PROT_WRITE 0
758# define MAP_PRIVATE 0
759# define MAP_SHARED 0
760# define MAP_FIXED 0
986#endif 761#endif
987 )
988 )
989 {
990 /* emulate sendfile. this is a major pain in the ass */
991 dBUF;
992 762
993 res = 0; 763#define MMAP_MAGIC PERL_MAGIC_ext
994 764
995 while (count) 765static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
996 { 766{
997 ssize_t cnt; 767 int old_errno = errno;
998 768 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
999 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 769 errno = old_errno;
1000 770
1001 if (cnt <= 0) 771 mg->mg_obj = 0; /* just in case */
1002 {
1003 if (cnt && !res) res = -1;
1004 break;
1005 }
1006 772
1007 cnt = write (ofd, aio_buf, cnt); 773 SvREADONLY_off (sv);
1008 774
1009 if (cnt <= 0) 775 if (SvPVX (sv) != mg->mg_ptr)
1010 { 776 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1011 if (cnt && !res) res = -1;
1012 break;
1013 }
1014 777
1015 offset += cnt; 778 SvCUR_set (sv, 0);
1016 res += cnt; 779 SvPVX (sv) = 0;
1017 count -= cnt; 780 SvOK_off (sv);
1018 }
1019 }
1020 781
1021 return res; 782 return 0;
1022} 783}
1023 784
1024/* read a full directory */ 785static MGVTBL mmap_vtbl = {
1025static void scandir_ (aio_req req, worker *self) 786 0, 0, 0, 0, mmap_free
1026{ 787};
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 788
1086/*****************************************************************************/ 789/*****************************************************************************/
1087 790
1088static void *aio_proc (void *thr_arg) 791static SV * get_cb (SV *cb_sv)
1089{ 792{
1090 aio_req req; 793 SvGETMAGIC (cb_sv);
1091 struct timespec ts; 794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
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} 795}
1314 796
1315#define dREQ \ 797#define dREQ \
798 SV *cb_cv; \
1316 aio_req req; \ 799 aio_req req; \
1317 int req_pri = next_pri; \ 800 int req_pri = next_pri; \
1318 next_pri = DEFAULT_PRI + PRI_BIAS; \ 801 next_pri = EIO_PRI_DEFAULT; \
1319 \ 802 \
1320 if (SvOK (callback) && !SvROK (callback)) \ 803 cb_cv = get_cb (callback); \
1321 croak ("callback must be undef or of reference type"); \
1322 \ 804 \
1323 Newz (0, req, 1, aio_cb); \ 805 Newz (0, req, 1, eio_req); \
1324 if (!req) \ 806 if (!req) \
1325 croak ("out of memory during aio_req allocation"); \ 807 croak ("out of memory during eio_req allocation"); \
1326 \ 808 \
1327 req->callback = newSVsv (callback); \ 809 req->callback = SvREFCNT_inc (cb_cv); \
1328 req->pri = req_pri 810 req->pri = req_pri
1329 811
1330#define REQ_SEND \ 812#define REQ_SEND \
813 PUTBACK; \
1331 req_send (req); \ 814 req_submit (req); \
815 SPAGAIN; \
1332 \ 816 \
1333 if (GIMME_V != G_VOID) \ 817 if (GIMME_V != G_VOID) \
1334 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 818 XPUSHs (req_sv (req, aio_req_stash));
1335 819
820static void
821req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
822{
823 if (SvROK (path))
824 {
825 AV *av = (AV *)SvRV (path);
826 SV *wdob;
827
828 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
829 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
830
831 path = AvARRAY (av)[1];
832 wdob = AvARRAY (av)[0];
833
834 if (SvOK (wdob))
835 {
836 *wd = SvAIO_WD (wdob);
837 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 }
839 else
840 *wd = EIO_INVALID_WD;
841 }
842
843 *pathsv = newSVsv (path);
844 *ptr = SvPVbyte_nolen (*pathsv);
845}
846
847static void
848req_set_path1 (aio_req req, SV *path)
849{
850 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
851}
852
853static void
854req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
855{
856 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
857
858 switch (SvTYPE (rv))
859 {
860 case SVt_PVIO:
861 case SVt_PVLV:
862 case SVt_PVGV:
863 req->type = type_fh;
864 req->sv1 = newSVsv (fh_or_path);
865 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
866 break;
867
868 default:
869 req->type = type_path;
870 req_set_path1 (req, fh_or_path);
871 break;
872 }
873
874}
875
1336MODULE = IO::AIO PACKAGE = IO::AIO 876MODULE = IO::AIO PACKAGE = IO::AIO
1337 877
1338PROTOTYPES: ENABLE 878PROTOTYPES: ENABLE
1339 879
1340BOOT: 880BOOT:
1341{ 881{
882 static const struct {
883 const char *name;
884 IV iv;
885 } *civ, const_iv[] = {
886# define const_niv(name, value) { # name, (IV) value },
887# define const_iv(name) { # name, (IV) name },
888# define const_eio(name) { # name, (IV) EIO_ ## name },
889 const_iv (EXDEV)
890 const_iv (ENOSYS)
891 const_iv (O_RDONLY)
892 const_iv (O_WRONLY)
893 const_iv (O_RDWR)
894 const_iv (O_CREAT)
895 const_iv (O_TRUNC)
896 const_iv (O_EXCL)
897 const_iv (O_APPEND)
898
899 const_iv (O_ASYNC)
900 const_iv (O_DIRECT)
901 const_iv (O_NOATIME)
902
903 const_iv (O_CLOEXEC)
904 const_iv (O_NOCTTY)
905 const_iv (O_NOFOLLOW)
906 const_iv (O_NONBLOCK)
907 const_iv (O_EXEC)
908 const_iv (O_SEARCH)
909 const_iv (O_DIRECTORY)
910 const_iv (O_DSYNC)
911 const_iv (O_RSYNC)
912 const_iv (O_SYNC)
913 const_iv (O_TTY_INIT)
914
915 const_iv (S_IFIFO)
916 const_iv (S_IFCHR)
917 const_iv (S_IFBLK)
918 const_iv (S_IFLNK)
919 const_iv (S_IFREG)
920 const_iv (S_IFDIR)
921 const_iv (S_IFWHT)
922 const_iv (S_IFSOCK)
923 const_iv (S_IFMT)
924
925 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
926 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
927 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
928 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
929 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
930 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
931
932 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
933 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
934 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
935 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
936 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
937
938 const_iv (ST_RDONLY)
939 const_iv (ST_NOSUID)
940 const_iv (ST_NODEV)
941 const_iv (ST_NOEXEC)
942 const_iv (ST_SYNCHRONOUS)
943 const_iv (ST_MANDLOCK)
944 const_iv (ST_WRITE)
945 const_iv (ST_APPEND)
946 const_iv (ST_IMMUTABLE)
947 const_iv (ST_NOATIME)
948 const_iv (ST_NODIRATIME)
949 const_iv (ST_RELATIME)
950
951 const_iv (PROT_NONE)
952 const_iv (PROT_EXEC)
953 const_iv (PROT_READ)
954 const_iv (PROT_WRITE)
955
956 /*const_iv (MAP_FIXED)*/
957 const_iv (MAP_PRIVATE)
958 const_iv (MAP_SHARED)
959 const_iv (MAP_ANONYMOUS)
960
961 /* linuxish */
962 const_iv (MAP_HUGETLB)
963 const_iv (MAP_LOCKED)
964 const_iv (MAP_NORESERVE)
965 const_iv (MAP_POPULATE)
966 const_iv (MAP_NONBLOCK)
967
968 const_eio (MCL_FUTURE)
969 const_eio (MCL_CURRENT)
970
971 const_eio (MS_ASYNC)
972 const_eio (MS_INVALIDATE)
973 const_eio (MS_SYNC)
974
975 const_eio (MT_MODIFY)
976
977 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
978 const_eio (SYNC_FILE_RANGE_WRITE)
979 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
980
981 const_eio (FALLOC_FL_KEEP_SIZE)
982
983 const_eio (READDIR_DENTS)
984 const_eio (READDIR_DIRS_FIRST)
985 const_eio (READDIR_STAT_ORDER)
986 const_eio (READDIR_FOUND_UNKNOWN)
987
988 const_eio (DT_UNKNOWN)
989 const_eio (DT_FIFO)
990 const_eio (DT_CHR)
991 const_eio (DT_DIR)
992 const_eio (DT_BLK)
993 const_eio (DT_REG)
994 const_eio (DT_LNK)
995 const_eio (DT_SOCK)
996 const_eio (DT_WHT)
997 };
998
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 999 aio_stash = gv_stashpv ("IO::AIO" , 1);
1000 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1001 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1002 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1003
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1004 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1005 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 1006
1352 create_pipe (); 1007 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1008
1009 reinit ();
1010}
1011
1356void 1012void
1013reinit ()
1014 PROTOTYPE:
1015
1016void
1357max_poll_reqs (int nreqs) 1017max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1018 PROTOTYPE: $
1359 CODE: 1019 CODE:
1360 max_poll_reqs = nreqs; 1020 eio_set_max_poll_reqs (nreqs);
1361 1021
1362void 1022void
1363max_poll_time (double nseconds) 1023max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1024 PROTOTYPE: $
1365 CODE: 1025 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1026 eio_set_max_poll_time (nseconds);
1367 1027
1368void 1028void
1369min_parallel (int nthreads) 1029min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1030 PROTOTYPE: $
1379 CODE: 1031 CODE:
1380 set_max_idle (nthreads); 1032 eio_set_min_parallel (nthreads);
1381 1033
1382int 1034void
1383max_outstanding (int maxreqs) 1035max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1036 PROTOTYPE: $
1385 CODE: 1037 CODE:
1386 RETVAL = max_outstanding; 1038 eio_set_max_parallel (nthreads);
1039
1040void
1041max_idle (unsigned int nthreads)
1042 PROTOTYPE: $
1043 CODE:
1044 eio_set_max_idle (nthreads);
1045
1046void
1047idle_timeout (unsigned int seconds)
1048 PROTOTYPE: $
1049 CODE:
1050 eio_set_idle_timeout (seconds);
1051
1052void
1053max_outstanding (unsigned int maxreqs)
1054 PROTOTYPE: $
1055 CODE:
1387 max_outstanding = maxreqs; 1056 max_outstanding = maxreqs;
1388 OUTPUT: 1057
1389 RETVAL 1058void
1059aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1060 PPCODE:
1061{
1062 dREQ;
1063
1064 req->type = EIO_WD_OPEN;
1065 req_set_path1 (req, pathname);
1066
1067 REQ_SEND;
1068}
1390 1069
1391void 1070void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1071aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1072 PPCODE:
1395{ 1073{
1396 dREQ; 1074 dREQ;
1397 1075
1398 req->type = REQ_OPEN; 1076 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1077 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1078 req->int1 = flags;
1402 req->mode = mode; 1079 req->int2 = mode;
1403 1080
1404 REQ_SEND; 1081 REQ_SEND;
1405} 1082}
1406 1083
1407void 1084void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1085aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1086 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1087 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1088 aio_fdatasync = EIO_FDATASYNC
1089 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1090 PPCODE:
1415{ 1091{
1092 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1093 dREQ;
1417 1094
1418 req->type = ix; 1095 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1096 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1097 req->int1 = fd;
1098
1099 REQ_SEND (req);
1100}
1101
1102void
1103aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1104 PPCODE:
1105{
1106 int fd = s_fileno_croak (fh, 0);
1107 dREQ;
1108
1109 req->type = EIO_SYNC_FILE_RANGE;
1110 req->sv1 = newSVsv (fh);
1111 req->int1 = fd;
1112 req->offs = offset;
1113 req->size = nbytes;
1114 req->int2 = flags;
1115
1116 REQ_SEND (req);
1117}
1118
1119void
1120aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1121 PPCODE:
1122{
1123 int fd = s_fileno_croak (fh, 0);
1124 dREQ;
1125
1126 req->type = EIO_FALLOCATE;
1127 req->sv1 = newSVsv (fh);
1128 req->int1 = fd;
1129 req->int2 = mode;
1130 req->offs = offset;
1131 req->size = len;
1132
1133 REQ_SEND (req);
1134}
1135
1136void
1137aio_close (SV *fh, SV *callback=&PL_sv_undef)
1138 PPCODE:
1139{
1140 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1141 int fd = s_fileno_croak (fh, 0);
1142 dREQ;
1143
1144 if (expect_false (close_fd < 0))
1145 {
1146 int pipefd [2];
1147
1148 if (
1149#ifdef _WIN32
1150 _pipe (pipefd, 1, _O_BINARY) < 0
1151#else
1152 pipe (pipefd) < 0
1153 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1154#endif
1155 || close (pipefd [1]) < 0
1156 )
1157 abort (); /*D*/
1158
1159 close_fd = pipefd [0];
1160 }
1161
1162 req->type = EIO_DUP2;
1163 req->int1 = close_fd;
1164 req->sv2 = newSVsv (fh);
1165 req->int2 = fd;
1421 1166
1422 REQ_SEND (req); 1167 REQ_SEND (req);
1423} 1168}
1424 1169
1425void 1170void
1426aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1171aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1427 ALIAS: 1172 ALIAS:
1428 aio_read = REQ_READ 1173 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1174 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1175 PPCODE:
1432{ 1176{
1433 STRLEN svlen; 1177 STRLEN svlen;
1178 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1179 char *svptr = SvPVbyte (data, svlen);
1435 UV len = SvUV (length); 1180 UV len = SvUV (length);
1436 1181
1437 SvUPGRADE (data, SVt_PV);
1438 SvPOK_on (data);
1439
1440 if (dataoffset < 0) 1182 if (dataoffset < 0)
1441 dataoffset += svlen; 1183 dataoffset += svlen;
1442 1184
1443 if (dataoffset < 0 || dataoffset > svlen) 1185 if (dataoffset < 0 || dataoffset > svlen)
1444 croak ("dataoffset outside of data scalar"); 1186 croak ("dataoffset outside of data scalar");
1445 1187
1446 if (ix == REQ_WRITE) 1188 if (ix == EIO_WRITE)
1447 { 1189 {
1448 /* write: check length and adjust. */ 1190 /* write: check length and adjust. */
1449 if (!SvOK (length) || len + dataoffset > svlen) 1191 if (!SvOK (length) || len + dataoffset > svlen)
1450 len = svlen - dataoffset; 1192 len = svlen - dataoffset;
1451 } 1193 }
1452 else 1194 else
1453 { 1195 {
1454 /* read: grow scalar as necessary */ 1196 /* read: check type and grow scalar as necessary */
1197 SvUPGRADE (data, SVt_PV);
1455 svptr = SvGROW (data, len + dataoffset + 1); 1198 svptr = SvGROW (data, len + dataoffset + 1);
1456 } 1199 }
1457 1200
1458 if (len < 0)
1459 croak ("length must not be negative");
1460
1461 { 1201 {
1462 dREQ; 1202 dREQ;
1463 1203
1464 req->type = ix; 1204 req->type = ix;
1465 req->sv1 = newSVsv (fh); 1205 req->sv1 = newSVsv (fh);
1466 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1206 req->int1 = fd;
1467 : IoOFP (sv_2io (fh)));
1468 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1207 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1469 req->size = len; 1208 req->size = len;
1470 req->sv2 = SvREFCNT_inc (data); 1209 req->sv2 = SvREFCNT_inc (data);
1471 req->ptr1 = (char *)svptr + dataoffset; 1210 req->ptr2 = (char *)svptr + dataoffset;
1472 req->stroffset = dataoffset; 1211 req->stroffset = dataoffset;
1473 1212
1474 if (!SvREADONLY (data)) 1213 if (!SvREADONLY (data))
1475 { 1214 {
1476 SvREADONLY_on (data); 1215 SvREADONLY_on (data);
… …
1480 REQ_SEND; 1219 REQ_SEND;
1481 } 1220 }
1482} 1221}
1483 1222
1484void 1223void
1485aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1224aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1486 PROTOTYPE: $$;$ 1225 ALIAS:
1226 aio_readlink = EIO_READLINK
1227 aio_realpath = EIO_REALPATH
1487 PPCODE: 1228 PPCODE:
1488{ 1229{
1489 SV *data;
1490 dREQ; 1230 dREQ;
1491 1231
1492 data = newSV (NAME_MAX);
1493 SvPOK_on (data);
1494
1495 req->type = REQ_READLINK; 1232 req->type = ix;
1496 req->sv1 = newSVsv (path); 1233 req_set_path1 (req, pathname);
1497 req->ptr2 = SvPVbyte_nolen (req->sv1);
1498 req->sv2 = data;
1499 req->ptr1 = SvPVbyte_nolen (data);
1500 1234
1501 REQ_SEND; 1235 REQ_SEND;
1502} 1236}
1503 1237
1504void 1238void
1505aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1239aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1506 PROTOTYPE: $$$$;$
1507 PPCODE: 1240 PPCODE:
1508{ 1241{
1242 int ifd = s_fileno_croak (in_fh , 0);
1243 int ofd = s_fileno_croak (out_fh, 1);
1509 dREQ; 1244 dREQ;
1510 1245
1511 req->type = REQ_SENDFILE; 1246 req->type = EIO_SENDFILE;
1512 req->sv1 = newSVsv (out_fh); 1247 req->sv1 = newSVsv (out_fh);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1248 req->int1 = ofd;
1514 req->sv2 = newSVsv (in_fh); 1249 req->sv2 = newSVsv (in_fh);
1515 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1250 req->int2 = ifd;
1516 req->offs = SvVAL64 (in_offset); 1251 req->offs = in_offset;
1517 req->size = length; 1252 req->size = length;
1518 1253
1519 REQ_SEND; 1254 REQ_SEND;
1520} 1255}
1521 1256
1522void 1257void
1523aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1258aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1524 PROTOTYPE: $$$;$
1525 PPCODE: 1259 PPCODE:
1526{ 1260{
1261 int fd = s_fileno_croak (fh, 0);
1527 dREQ; 1262 dREQ;
1528 1263
1529 req->type = REQ_READAHEAD; 1264 req->type = EIO_READAHEAD;
1530 req->sv1 = newSVsv (fh); 1265 req->sv1 = newSVsv (fh);
1531 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1266 req->int1 = fd;
1532 req->offs = SvVAL64 (offset); 1267 req->offs = offset;
1533 req->size = length; 1268 req->size = length;
1534 1269
1535 REQ_SEND; 1270 REQ_SEND;
1536} 1271}
1537 1272
1538void 1273void
1539aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1274aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1540 ALIAS: 1275 ALIAS:
1541 aio_stat = REQ_STAT 1276 aio_stat = EIO_STAT
1542 aio_lstat = REQ_LSTAT 1277 aio_lstat = EIO_LSTAT
1278 aio_statvfs = EIO_STATVFS
1543 PPCODE: 1279 PPCODE:
1544{ 1280{
1545 dREQ; 1281 dREQ;
1546 1282
1547 req->ptr2 = malloc (sizeof (Stat_t));
1548 if (!req->ptr2)
1549 {
1550 req_destroy (req);
1551 croak ("out of memory during aio_stat statdata allocation");
1552 }
1553
1554 req->flags |= FLAG_PTR2_FREE;
1555 req->sv1 = newSVsv (fh_or_path); 1283 req->sv1 = newSVsv (fh_or_path);
1556 1284 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1557 if (SvPOK (fh_or_path))
1558 {
1559 req->type = ix;
1560 req->ptr1 = SvPVbyte_nolen (req->sv1);
1561 }
1562 else
1563 {
1564 req->type = REQ_FSTAT;
1565 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1566 }
1567
1568 REQ_SEND; 1285 REQ_SEND;
1569} 1286}
1287
1288UV
1289major (UV dev)
1290 ALIAS:
1291 minor = 1
1292 CODE:
1293 RETVAL = ix ? major (dev) : minor (dev);
1294 OUTPUT:
1295 RETVAL
1296
1297UV
1298makedev (UV maj, UV min)
1299 CODE:
1300 RETVAL = makedev (maj, min);
1301 OUTPUT:
1302 RETVAL
1570 1303
1571void 1304void
1572aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1305aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1573 PPCODE: 1306 PPCODE:
1574{ 1307{
1575 dREQ; 1308 dREQ;
1576 1309
1577 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1310 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1578 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1311 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1579 req->sv1 = newSVsv (fh_or_path); 1312 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1580
1581 if (SvPOK (fh_or_path))
1582 {
1583 req->type = REQ_UTIME;
1584 req->ptr1 = SvPVbyte_nolen (req->sv1);
1585 }
1586 else
1587 {
1588 req->type = REQ_FUTIME;
1589 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1590 }
1591 1313
1592 REQ_SEND; 1314 REQ_SEND;
1593} 1315}
1594 1316
1595void 1317void
1318aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1319 PPCODE:
1320{
1321 dREQ;
1322
1323 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1324 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1325
1326 REQ_SEND;
1327}
1328
1329void
1596aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1330aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1331 ALIAS:
1332 aio_chmod = EIO_CHMOD
1333 aio_mkdir = EIO_MKDIR
1597 PPCODE: 1334 PPCODE:
1598{ 1335{
1599 dREQ; 1336 dREQ;
1600 1337
1601 req->mode = mode; 1338 req->int2 = mode;
1602 req->sv1 = newSVsv (fh_or_path); 1339 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1603
1604 if (SvPOK (fh_or_path))
1605 {
1606 req->type = REQ_CHMOD;
1607 req->ptr1 = SvPVbyte_nolen (req->sv1);
1608 }
1609 else
1610 {
1611 req->type = REQ_FCHMOD;
1612 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1613 }
1614 1340
1615 REQ_SEND; 1341 REQ_SEND;
1616} 1342}
1617 1343
1618void 1344void
… …
1621{ 1347{
1622 dREQ; 1348 dREQ;
1623 1349
1624 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1350 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1625 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1351 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1626 req->sv1 = newSVsv (fh_or_path); 1352 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1627
1628 if (SvPOK (fh_or_path))
1629 {
1630 req->type = REQ_CHOWN;
1631 req->ptr1 = SvPVbyte_nolen (req->sv1);
1632 }
1633 else
1634 {
1635 req->type = REQ_FCHOWN;
1636 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1637 }
1638 1353
1639 REQ_SEND; 1354 REQ_SEND;
1355}
1356
1357void
1358aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1359 PPCODE:
1360{
1361 dREQ;
1362
1363 req->type = EIO_READDIR;
1364 req->sv1 = newSVsv (pathname);
1365 req->ptr1 = SvPVbyte_nolen (req->sv1);
1366 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1367
1368 if (flags & EIO_READDIR_DENTS)
1369 req->int1 |= EIO_READDIR_CUSTOM2;
1370
1371 REQ_SEND;
1640} 1372}
1641 1373
1642void 1374void
1643aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1375aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1644 ALIAS: 1376 ALIAS:
1645 aio_unlink = REQ_UNLINK 1377 aio_unlink = EIO_UNLINK
1646 aio_rmdir = REQ_RMDIR 1378 aio_rmdir = EIO_RMDIR
1647 aio_readdir = REQ_READDIR 1379 aio_readdir = EIO_READDIR
1648 PPCODE: 1380 PPCODE:
1649{ 1381{
1650 dREQ; 1382 dREQ;
1651 1383
1652 req->type = ix; 1384 req->type = ix;
1653 req->sv1 = newSVsv (pathname); 1385 req_set_path1 (req, pathname);
1654 req->ptr1 = SvPVbyte_nolen (req->sv1);
1655 1386
1656 REQ_SEND; 1387 REQ_SEND;
1657} 1388}
1658 1389
1659void 1390void
1391aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1392 ALIAS:
1393 aio_link = EIO_LINK
1394 aio_symlink = EIO_SYMLINK
1395 aio_rename = EIO_RENAME
1396 PPCODE:
1397{
1398 dREQ;
1399 eio_wd wd2;
1400
1401 req->type = ix;
1402 req_set_path1 (req, oldpath);
1403 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1404 req->int3 = (long)wd2;
1405
1406 REQ_SEND;
1407}
1408
1409void
1660aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1410aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1661 PPCODE: 1411 PPCODE:
1662{ 1412{
1663 dREQ; 1413 dREQ;
1664 1414
1665 req->type = REQ_MKDIR; 1415 req->type = EIO_MKNOD;
1666 req->sv1 = newSVsv (pathname);
1667 req->ptr1 = SvPVbyte_nolen (req->sv1);
1668 req->mode = mode; 1416 req->int2 = (mode_t)mode;
1669 1417 req->offs = dev;
1670 REQ_SEND; 1418 req_set_path1 (req, pathname);
1671}
1672
1673void
1674aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1675 ALIAS:
1676 aio_link = REQ_LINK
1677 aio_symlink = REQ_SYMLINK
1678 aio_rename = REQ_RENAME
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->type = ix;
1684 req->sv2 = newSVsv (oldpath);
1685 req->ptr2 = SvPVbyte_nolen (req->sv2);
1686 req->sv1 = newSVsv (newpath);
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 1419
1689 REQ_SEND; 1420 REQ_SEND;
1690} 1421}
1691 1422
1692void 1423void
1693aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1424aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1694 PPCODE: 1425 ALIAS:
1426 aio_mtouch = EIO_MTOUCH
1427 aio_msync = EIO_MSYNC
1428 PPCODE:
1695{ 1429{
1696 dREQ; 1430 STRLEN svlen;
1697 1431 char *svptr = SvPVbyte (data, svlen);
1432 UV len = SvUV (length);
1433
1434 if (offset < 0)
1435 offset += svlen;
1436
1437 if (offset < 0 || offset > svlen)
1438 croak ("offset outside of scalar");
1439
1440 if (!SvOK (length) || len + offset > svlen)
1441 len = svlen - offset;
1442
1443 {
1444 dREQ;
1445
1446 req->type = ix;
1447 req->sv2 = SvREFCNT_inc (data);
1448 req->ptr2 = (char *)svptr + offset;
1449 req->size = len;
1450 req->int1 = flags;
1451
1452 REQ_SEND;
1453 }
1454}
1455
1456void
1457aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1458 PPCODE:
1459{
1460 STRLEN svlen;
1461 char *svptr = SvPVbyte (data, svlen);
1462 UV len = SvUV (length);
1463
1464 if (offset < 0)
1465 offset += svlen;
1466
1467 if (offset < 0 || offset > svlen)
1468 croak ("offset outside of scalar");
1469
1470 if (!SvOK (length) || len + offset > svlen)
1471 len = svlen - offset;
1472
1473 {
1474 dREQ;
1475
1698 req->type = REQ_MKNOD; 1476 req->type = EIO_MLOCK;
1699 req->sv1 = newSVsv (pathname); 1477 req->sv2 = SvREFCNT_inc (data);
1700 req->ptr1 = SvPVbyte_nolen (req->sv1); 1478 req->ptr2 = (char *)svptr + offset;
1701 req->mode = (mode_t)mode;
1702 req->offs = dev; 1479 req->size = len;
1703 1480
1704 REQ_SEND; 1481 REQ_SEND;
1482 }
1483}
1484
1485void
1486aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1487 PPCODE:
1488{
1489 dREQ;
1490
1491 req->type = EIO_MLOCKALL;
1492 req->int1 = flags;
1493
1494 REQ_SEND;
1705} 1495}
1706 1496
1707void 1497void
1708aio_busy (double delay, SV *callback=&PL_sv_undef) 1498aio_busy (double delay, SV *callback=&PL_sv_undef)
1709 PPCODE: 1499 PPCODE:
1710{ 1500{
1711 dREQ; 1501 dREQ;
1712 1502
1713 req->type = REQ_BUSY; 1503 req->type = EIO_BUSY;
1714 req->nv1 = delay < 0. ? 0. : delay; 1504 req->nv1 = delay < 0. ? 0. : delay;
1715 1505
1716 REQ_SEND; 1506 REQ_SEND;
1717} 1507}
1718 1508
1719void 1509void
1720aio_group (SV *callback=&PL_sv_undef) 1510aio_group (SV *callback=&PL_sv_undef)
1721 PROTOTYPE: ;$
1722 PPCODE: 1511 PPCODE:
1723{ 1512{
1724 dREQ; 1513 dREQ;
1725 1514
1726 req->type = REQ_GROUP; 1515 req->type = EIO_GROUP;
1727 1516
1728 req_send (req); 1517 req_submit (req);
1729 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1518 XPUSHs (req_sv (req, aio_grp_stash));
1730} 1519}
1731 1520
1732void 1521void
1733aio_nop (SV *callback=&PL_sv_undef) 1522aio_nop (SV *callback=&PL_sv_undef)
1523 ALIAS:
1524 aio_nop = EIO_NOP
1525 aio_sync = EIO_SYNC
1734 PPCODE: 1526 PPCODE:
1735{ 1527{
1736 dREQ; 1528 dREQ;
1737 1529
1738 req->type = REQ_NOP; 1530 req->type = ix;
1739 1531
1740 REQ_SEND; 1532 REQ_SEND;
1741} 1533}
1742 1534
1743int 1535int
1744aioreq_pri (int pri = 0) 1536aioreq_pri (int pri = 0)
1745 PROTOTYPE: ;$
1746 CODE: 1537 CODE:
1747 RETVAL = next_pri - PRI_BIAS; 1538 RETVAL = next_pri;
1748 if (items > 0) 1539 if (items > 0)
1749 { 1540 {
1750 if (pri < PRI_MIN) pri = PRI_MIN; 1541 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1751 if (pri > PRI_MAX) pri = PRI_MAX; 1542 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1752 next_pri = pri + PRI_BIAS; 1543 next_pri = pri;
1753 } 1544 }
1754 OUTPUT: 1545 OUTPUT:
1755 RETVAL 1546 RETVAL
1756 1547
1757void 1548void
1758aioreq_nice (int nice = 0) 1549aioreq_nice (int nice = 0)
1759 CODE: 1550 CODE:
1760 nice = next_pri - nice; 1551 nice = next_pri - nice;
1761 if (nice < PRI_MIN) nice = PRI_MIN; 1552 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1762 if (nice > PRI_MAX) nice = PRI_MAX; 1553 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1763 next_pri = nice + PRI_BIAS; 1554 next_pri = nice;
1764 1555
1765void 1556void
1766flush () 1557flush ()
1767 PROTOTYPE:
1768 CODE: 1558 CODE:
1769 while (nreqs) 1559 while (eio_nreqs ())
1770 { 1560 {
1771 poll_wait (); 1561 poll_wait ();
1772 poll_cb (); 1562 poll_cb ();
1773 } 1563 }
1774 1564
1775int 1565int
1776poll() 1566poll ()
1777 PROTOTYPE:
1778 CODE: 1567 CODE:
1779 poll_wait (); 1568 poll_wait ();
1780 RETVAL = poll_cb (); 1569 RETVAL = poll_cb ();
1781 OUTPUT: 1570 OUTPUT:
1782 RETVAL 1571 RETVAL
1783 1572
1784int 1573int
1785poll_fileno() 1574poll_fileno ()
1786 PROTOTYPE:
1787 CODE: 1575 CODE:
1788 RETVAL = respipe [0]; 1576 RETVAL = s_epipe_fd (&respipe);
1789 OUTPUT: 1577 OUTPUT:
1790 RETVAL 1578 RETVAL
1791 1579
1792int 1580int
1793poll_cb(...) 1581poll_cb (...)
1794 PROTOTYPE: 1582 PROTOTYPE:
1795 CODE: 1583 CODE:
1796 RETVAL = poll_cb (); 1584 RETVAL = poll_cb ();
1797 OUTPUT: 1585 OUTPUT:
1798 RETVAL 1586 RETVAL
1799 1587
1800void 1588void
1801poll_wait() 1589poll_wait ()
1802 PROTOTYPE:
1803 CODE: 1590 CODE:
1804 poll_wait (); 1591 poll_wait ();
1805 1592
1806void
1807setsig (int signum = SIGIO)
1808 PROTOTYPE: ;$
1809 CODE:
1810{
1811 if (block_sig_level)
1812 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1813
1814 LOCK (reslock);
1815 main_tid = pthread_self ();
1816 main_sig = signum;
1817 UNLOCK (reslock);
1818
1819 if (main_sig && npending)
1820 pthread_kill (main_tid, main_sig);
1821}
1822
1823void
1824aio_block (SV *cb)
1825 PROTOTYPE: &
1826 PPCODE:
1827{
1828 int count;
1829
1830 block_sig ();
1831 PUSHMARK (SP);
1832 PUTBACK;
1833 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1834 SPAGAIN;
1835 unblock_sig ();
1836
1837 if (SvTRUE (ERRSV))
1838 croak (0);
1839
1840 XSRETURN (count);
1841}
1842
1843int 1593int
1844nreqs() 1594nreqs ()
1845 PROTOTYPE:
1846 CODE: 1595 CODE:
1847 RETVAL = nreqs; 1596 RETVAL = eio_nreqs ();
1848 OUTPUT: 1597 OUTPUT:
1849 RETVAL 1598 RETVAL
1850 1599
1851int 1600int
1852nready() 1601nready ()
1853 PROTOTYPE:
1854 CODE: 1602 CODE:
1855 RETVAL = get_nready (); 1603 RETVAL = eio_nready ();
1856 OUTPUT: 1604 OUTPUT:
1857 RETVAL 1605 RETVAL
1858 1606
1859int 1607int
1860npending() 1608npending ()
1861 PROTOTYPE:
1862 CODE: 1609 CODE:
1863 RETVAL = get_npending (); 1610 RETVAL = eio_npending ();
1864 OUTPUT: 1611 OUTPUT:
1865 RETVAL 1612 RETVAL
1866 1613
1867int 1614int
1868nthreads() 1615nthreads ()
1869 PROTOTYPE:
1870 CODE: 1616 CODE:
1871 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1617 RETVAL = eio_nthreads ();
1872 RETVAL = started;
1873 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1874 OUTPUT: 1618 OUTPUT:
1875 RETVAL 1619 RETVAL
1876 1620
1621int
1622fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1623 CODE:
1624 RETVAL = posix_fadvise (fh, offset, length, advice);
1625 OUTPUT:
1626 RETVAL
1627
1628IV
1629sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1630 CODE:
1631 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1632 OUTPUT:
1633 RETVAL
1634
1635void
1636mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1637 PPCODE:
1638 sv_unmagic (scalar, MMAP_MAGIC);
1639{
1640 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1641 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1642 if (addr == (void *)-1)
1643 XSRETURN_NO;
1644
1645 sv_force_normal (scalar);
1646
1647 /* we store the length in mg_obj, as namlen is I32 :/ */
1648 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1649 ->mg_obj = (SV *)length;
1650
1651 SvUPGRADE (scalar, SVt_PV); /* nop... */
1652
1653 if (!(prot & PROT_WRITE))
1654 SvREADONLY_on (scalar);
1655
1656 if (SvLEN (scalar))
1657 Safefree (SvPVX (scalar));
1658
1659 SvPVX (scalar) = (char *)addr;
1660 SvCUR_set (scalar, length);
1661 SvLEN_set (scalar, 0);
1662 SvPOK_only (scalar);
1663
1664 XSRETURN_YES;
1665}
1666
1667void
1668munmap (SV *scalar)
1669 CODE:
1670 sv_unmagic (scalar, MMAP_MAGIC);
1671
1672int
1673madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1674 ALIAS:
1675 mprotect = 1
1676 CODE:
1677{
1678 STRLEN svlen;
1679 void *addr = SvPVbyte (scalar, svlen);
1680 size_t len = SvUV (length);
1681
1682 if (offset < 0)
1683 offset += svlen;
1684
1685 if (offset < 0 || offset > svlen)
1686 croak ("offset outside of scalar");
1687
1688 if (!SvOK (length) || len + offset > svlen)
1689 len = svlen - offset;
1690
1691 addr = (void *)(((intptr_t)addr) + offset);
1692 eio_page_align (&addr, &len);
1693
1694 switch (ix)
1695 {
1696 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1697 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1698 }
1699}
1700 OUTPUT:
1701 RETVAL
1702
1703int
1704munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1705 CODE:
1706{
1707 STRLEN svlen;
1708 void *addr = SvPVbyte (scalar, svlen);
1709 size_t len = SvUV (length);
1710
1711 if (offset < 0)
1712 offset += svlen;
1713
1714 if (offset < 0 || offset > svlen)
1715 croak ("offset outside of scalar");
1716
1717 if (!SvOK (length) || len + offset > svlen)
1718 len = svlen - offset;
1719
1720 addr = (void *)(((intptr_t)addr) + offset);
1721 eio_page_align (&addr, &len);
1722#if _POSIX_MEMLOCK_RANGE
1723 RETVAL = munlock (addr, len);
1724#else
1725 RETVAL = ((errno = ENOSYS), -1);
1726#endif
1727}
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732munlockall ()
1733 CODE:
1734#if _POSIX_MEMLOCK
1735 munlockall ();
1736#else
1737 RETVAL = -1;
1738 errno = ENOSYS;
1739#endif
1740 OUTPUT:
1741 RETVAL
1742
1743void _on_next_submit (SV *cb)
1744 CODE:
1745 SvREFCNT_dec (on_next_submit);
1746 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1747
1877PROTOTYPES: DISABLE 1748PROTOTYPES: DISABLE
1878 1749
1750MODULE = IO::AIO PACKAGE = IO::AIO::WD
1751
1752BOOT:
1753{
1754 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1755 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1756}
1757
1758void
1759DESTROY (SV *self)
1760 CODE:
1761{
1762 aio_wd wd = SvAIO_WD (self);
1763#if HAVE_AT
1764 SV *callback = &PL_sv_undef;
1765 dREQ; /* clobbers next_pri :/ */
1766 req->type = EIO_WD_CLOSE;
1767 req->wd = wd;
1768 REQ_SEND;
1769#else
1770 eio_wd_close_sync (wd);
1771#endif
1772}
1773
1879MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1774MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1880 1775
1881void 1776void
1882cancel (aio_req_ornot req) 1777cancel (aio_req_ornot req)
1883 CODE: 1778 CODE:
1884 req_cancel (req); 1779 eio_cancel (req);
1885 1780
1886void 1781void
1887cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1782cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1888 CODE: 1783 PPCODE:
1784{
1785 if (GIMME_V != G_VOID)
1786 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1787
1788 if (items > 1)
1789 {
1790 SV *cb_cv =get_cb (callback);
1791
1889 SvREFCNT_dec (req->callback); 1792 SvREFCNT_dec (req->callback);
1890 req->callback = newSVsv (callback); 1793 req->callback = SvREFCNT_inc (cb_cv);
1794 }
1795}
1891 1796
1892MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1797MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1893 1798
1894void 1799void
1895add (aio_req grp, ...) 1800add (aio_req grp, ...)
1896 PPCODE: 1801 PPCODE:
1897{ 1802{
1898 int i; 1803 int i;
1899 aio_req req;
1900
1901 if (main_sig && !block_sig_level)
1902 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1903 1804
1904 if (grp->int1 == 2) 1805 if (grp->int1 == 2)
1905 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1806 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1906 1807
1907 for (i = 1; i < items; ++i ) 1808 for (i = 1; i < items; ++i )
1908 { 1809 {
1810 aio_req req;
1811
1909 if (GIMME_V != G_VOID) 1812 if (GIMME_V != G_VOID)
1910 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1813 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1911 1814
1912 req = SvAIO_REQ (ST (i)); 1815 req = SvAIO_REQ (ST (i));
1913 1816
1914 if (req) 1817 if (req)
1915 { 1818 eio_grp_add (grp, req);
1916 ++grp->size;
1917 req->grp = grp;
1918
1919 req->grp_prev = 0;
1920 req->grp_next = grp->grp_first;
1921
1922 if (grp->grp_first)
1923 grp->grp_first->grp_prev = req;
1924
1925 grp->grp_first = req;
1926 }
1927 } 1819 }
1928} 1820}
1929 1821
1930void 1822void
1931cancel_subs (aio_req_ornot req) 1823cancel_subs (aio_req_ornot req)
… …
1940 AV *av; 1832 AV *av;
1941 1833
1942 grp->errorno = errno; 1834 grp->errorno = errno;
1943 1835
1944 av = newAV (); 1836 av = newAV ();
1837 av_extend (av, items - 1);
1945 1838
1946 for (i = 1; i < items; ++i ) 1839 for (i = 1; i < items; ++i )
1947 av_push (av, newSVsv (ST (i))); 1840 av_push (av, newSVsv (ST (i)));
1948 1841
1949 SvREFCNT_dec (grp->sv1); 1842 SvREFCNT_dec (grp->sv1);
… …
1956 grp->errorno = errorno; 1849 grp->errorno = errorno;
1957 1850
1958void 1851void
1959limit (aio_req grp, int limit) 1852limit (aio_req grp, int limit)
1960 CODE: 1853 CODE:
1961 grp->int2 = limit; 1854 eio_grp_limit (grp, limit);
1962 aio_grp_feed (grp);
1963 1855
1964void 1856void
1965feed (aio_req grp, SV *callback=&PL_sv_undef) 1857feed (aio_req grp, SV *callback=&PL_sv_undef)
1966 CODE: 1858 CODE:
1967{ 1859{
1968 SvREFCNT_dec (grp->sv2); 1860 SvREFCNT_dec (grp->sv2);
1969 grp->sv2 = newSVsv (callback); 1861 grp->sv2 = newSVsv (callback);
1862 grp->feed = aio_grp_feed;
1970 1863
1971 if (grp->int2 <= 0) 1864 if (grp->int2 <= 0)
1972 grp->int2 = 2; 1865 grp->int2 = 2;
1973 1866
1974 aio_grp_feed (grp); 1867 eio_grp_limit (grp, grp->int2);
1975} 1868}
1976 1869

Diff Legend

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