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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.77 by root, Thu Oct 26 13:25:40 2006 UTC vs.
Revision 1.174 by root, Mon Nov 1 22:03:43 2010 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
27#include <limits.h> 17#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 18#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 19#include <sched.h>
32 20
33#if HAVE_SENDFILE 21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h> 22# include <sys/mman.h>
36# elif __freebsd 23#endif
37# include <sys/socket.h> 24
25/* perl namespace pollution */
26#undef VERSION
27
28#ifdef _WIN32
29
30# define EIO_STRUCT_DIRENT Direntry_t
31# undef malloc
32# undef free
33
34// perl overrides all those nice win32 functions
35# undef open
36# undef read
37# undef write
38# undef send
39# undef recv
40# undef stat
41# undef fstat
42# define lstat stat
43# undef truncate
44# undef ftruncate
45# undef open
46# undef close
47# undef unlink
48# undef rmdir
49# undef rename
50# undef lseek
51
52# define chown(a,b,c) (errno = ENOSYS, -1)
53# define fchown(a,b,c) (errno = ENOSYS, -1)
54# define fchmod(a,b) (errno = ENOSYS, -1)
55# define symlink(a,b) (errno = ENOSYS, -1)
56# define readlink(a,b,c) (errno = ENOSYS, -1)
57# define mknod(a,b,c) (errno = ENOSYS, -1)
58# define truncate(a,b) (errno = ENOSYS, -1)
59# define ftruncate(fd,o) chsize ((fd), (o))
60# define fsync(fd) _commit (fd)
61# define opendir(fd) (errno = ENOSYS, 0)
62# define readdir(fd) (errno = ENOSYS, -1)
63# define closedir(fd) (errno = ENOSYS, -1)
64# define mkdir(a,b) mkdir (a)
65
66#else
67
38# include <sys/uio.h> 68# include <sys/time.h>
39# elif __hpux
40# include <sys/socket.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 69# include <sys/select.h>
70# include <unistd.h>
71# include <utime.h>
72# include <signal.h>
73# define EIO_STRUCT_DIRENT struct dirent
74
75#endif
76
77/* perl stupidly overrides readdir and maybe others */
78/* with thread-unsafe versions, imagine that :( */
79#undef readdir
80#undef opendir
81#undef closedir
82
83#define EIO_STRUCT_STAT Stat_t
84
85/* use NV for 32 bit perls as it allows larger offsets */
86#if IVSIZE >= 8
87# define VAL64 IV
88# define SvVAL64 SvIV
89# define newSVval64 newSViv
90#else
91# define VAL64 NV
92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/eio.h"
124
125#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif
129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0
131#endif
132#ifndef POSIX_FADV_RANDOM
133# define POSIX_FADV_RANDOM 0
134#endif
135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0
137#endif
138#ifndef POSIX_FADV_WILLNEED
139# define POSIX_FADV_WILLNEED 0
140#endif
141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#if _XOPEN_SOURCE < 600 || NO_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151# define NO_MADVISE 1
152#endif
153#ifndef POSIX_MADV_SEQUENTIAL
154# define POSIX_MADV_SEQUENTIAL 0
155#endif
156#ifndef POSIX_MADV_RANDOM
157# define POSIX_MADV_RANDOM 0
158#endif
159#ifndef POSIX_MADV_WILLNEED
160# define POSIX_MADV_WILLNEED 0
161#endif
162#ifndef POSIX_MADV_DONTNEED
163# define POSIX_MADV_DONTNEED 0
164#endif
165
166#if _XOPEN_SOURCE < 600 || NO_MADVISE
167# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168#endif
169
170#ifndef PROT_NONE
171# define PROT_NONE 0
172#endif
173#ifndef PROT_READ
174# define PROT_READ 0
175#endif
176#ifndef PROT_WRITE
177# define PROT_READ 0
178#endif
179#ifndef PROT_EXEC
180# define PROT_EXEC 0
181#endif
182
183#ifndef ST_NODEV
184# define ST_NODEV 0
185#endif
186#ifndef ST_NOEXEC
187# define ST_NOEXEC 0
188#endif
189#ifndef ST_SYNCHRONOUS
190# define ST_SYNCHRONOUS 0
191#endif
192#ifndef ST_MANDLOCK
193# define ST_MANDLOCK 0
194#endif
195#ifndef ST_WRITE
196# define ST_WRITE 0
197#endif
198#ifndef ST_APPEND
199# define ST_APPEND 0
200#endif
201#ifndef ST_IMMUTABLE
202# define ST_IMMUTABLE 0
203#endif
204#ifndef ST_NOATIME
205# define ST_NOATIME 0
206#endif
207#ifndef ST_NODIRATIME
208# define ST_NODIRATIME 0
209#endif
210#ifndef ST_RELATIME
211# define ST_RELATIME 0
212#endif
213
214#ifndef MAP_ANONYMOUS
215# ifdef MAP_ANON
216# define MAP_ANONYMOUS MAP_ANON
43# else 217# else
44# error sendfile support requested but not available 218# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 219# endif
46#endif 220#endif
47 221#ifndef MAP_HUGETLB
48/* used for struct dirent, AIX doesn't provide it */ 222# define MAP_HUGETLB 0
49#ifndef NAME_MAX
50# define NAME_MAX 4096
51#endif 223#endif
52 224#ifndef MAP_LOCKED
53#ifndef PTHREAD_STACK_MIN 225# define MAP_LOCKED 0
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 226#endif
57 227#ifndef MAP_NORESERVE
58#if __ia64 228# define MAP_NORESERVE 0
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif 229#endif
230#ifndef MAP_POPULATE
231# define MAP_POPULATE 0
232#endif
233#ifndef MAP_NONBLOCK
234# define MAP_NONBLOCK 0
235#endif
65 236
66/* buffer size for various temporary buffers */ 237#ifndef PAGESIZE
67#define AIO_BUFSIZE 65536 238# define PAGESIZE sysconf (_SC_PAGESIZE)
239#endif
68 240
69#define dBUF \ 241static int req_invoke (eio_req *req);
70 char *aio_buf; \ 242#define EIO_FINISH(req) req_invoke (req)
71 LOCK (wrklock); \ 243static void req_destroy (eio_req *grp);
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 244#define EIO_DESTROY(req) req_destroy (req)
73 UNLOCK (wrklock); \
74 if (!aio_buf) \
75 return -1;
76 245
77enum { 246enum {
78 REQ_QUIT, 247 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
79 REQ_OPEN, REQ_CLOSE,
80 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP,
88 REQ_BUSY,
89}; 248};
90 249
91#define AIO_REQ_KLASS "IO::AIO::REQ" 250#include "libeio/eio.c"
92#define AIO_GRP_KLASS "IO::AIO::GRP"
93 251
94typedef struct aio_cb
95{
96 struct aio_cb *volatile next;
97
98 SV *data, *callback;
99 SV *fh, *fh2;
100 void *dataptr, *data2ptr;
101 Stat_t *statdata;
102 off_t offset;
103 size_t length;
104 ssize_t result;
105
106 STRLEN dataoffset;
107 int type;
108 int fd, fd2;
109 int errorno;
110 mode_t mode; /* open */
111
112 unsigned char flags;
113 unsigned char pri;
114
115 SV *self; /* the perl counterpart of this request, if any */
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
117} aio_cb;
118
119enum {
120 FLAG_CANCELLED = 0x01,
121};
122
123typedef aio_cb *aio_req; 252typedef eio_req *aio_req;
124typedef aio_cb *aio_req_ornot; 253typedef eio_req *aio_req_ornot;
125 254
126enum { 255static SV *on_next_submit;
127 PRI_MIN = -4, 256static int next_pri = EIO_PRI_DEFAULT;
128 PRI_MAX = 4, 257static int max_outstanding;
129 258
130 DEFAULT_PRI = 0, 259static s_epipe respipe;
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134 260
135static int next_pri = DEFAULT_PRI + PRI_BIAS;
136
137static int started, wanted;
138static volatile int nreqs;
139static int respipe [2];
140
141#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143#else
144# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145#endif
146
147#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149
150/* worker threads management */
151static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
152
153typedef struct worker {
154 /* locked by wrklock */
155 struct worker *prev, *next;
156
157 pthread_t tid;
158
159 /* locked by reslock, reqlock or wrklock */
160 aio_req req; /* currently processed request */
161 void *dbuf;
162 DIR *dirp;
163} worker;
164
165static worker wrk_first = { &wrk_first, &wrk_first, 0 };
166
167static void worker_clear (worker *wrk)
168{
169 if (wrk->dirp)
170 {
171 closedir (wrk->dirp);
172 wrk->dirp = 0;
173 }
174
175 if (wrk->dbuf)
176 {
177 free (wrk->dbuf);
178 wrk->dbuf = 0;
179 }
180}
181
182static void worker_free (worker *wrk)
183{
184 wrk->next->prev = wrk->prev;
185 wrk->prev->next = wrk->next;
186
187 free (wrk);
188}
189
190static pthread_mutex_t reslock = AIO_MUTEX_INIT;
191static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
192static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
193
194/*
195 * a somewhat faster data structure might be nice, but
196 * with 8 priorities this actually needs <20 insns
197 * per shift, the most expensive operation.
198 */
199typedef struct {
200 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
201 int size;
202} reqq;
203
204static reqq req_queue;
205static reqq res_queue;
206
207int reqq_push (reqq *q, aio_req req)
208{
209 int pri = req->pri;
210 req->next = 0;
211
212 if (q->qe[pri])
213 {
214 q->qe[pri]->next = req;
215 q->qe[pri] = req;
216 }
217 else
218 q->qe[pri] = q->qs[pri] = req;
219
220 return q->size++;
221}
222
223aio_req reqq_shift (reqq *q)
224{
225 int pri;
226
227 if (!q->size)
228 return 0;
229
230 --q->size;
231
232 for (pri = NUM_PRI; pri--; )
233 {
234 aio_req req = q->qs[pri];
235
236 if (req)
237 {
238 if (!(q->qs[pri] = req->next))
239 q->qe[pri] = 0;
240
241 return req;
242 }
243 }
244
245 abort ();
246}
247
248static int poll_cb (int max);
249static void req_invoke (aio_req req);
250static void req_free (aio_req req); 261static void req_destroy (aio_req req);
251static void req_cancel (aio_req req); 262static void req_cancel (aio_req req);
252 263
264static void want_poll (void)
265{
266 /* write a dummy byte to the pipe so fh becomes ready */
267 s_epipe_signal (&respipe);
268}
269
270static void done_poll (void)
271{
272 /* read any signals sent by the worker threads */
273 s_epipe_drain (&respipe);
274}
275
253/* must be called at most once */ 276/* must be called at most once */
254static SV *req_sv (aio_req req, const char *klass) 277static SV *req_sv (aio_req req, HV *stash)
255{ 278{
256 if (!req->self) 279 if (!req->self)
257 { 280 {
258 req->self = (SV *)newHV (); 281 req->self = (SV *)newHV ();
259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 282 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
260 } 283 }
261 284
262 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 285 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
263} 286}
264 287
265static aio_req SvAIO_REQ (SV *sv) 288static aio_req SvAIO_REQ (SV *sv)
266{ 289{
267 MAGIC *mg; 290 MAGIC *mg;
268 291
269 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 292 if (!SvROK (sv)
293 || (SvSTASH (SvRV (sv)) != aio_grp_stash
294 && SvSTASH (SvRV (sv)) != aio_req_stash
295 && !sv_derived_from (sv, "IO::AIO::REQ")))
270 croak ("object of class " AIO_REQ_KLASS " expected"); 296 croak ("object of class IO::AIO::REQ expected");
271 297
272 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 298 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273 299
274 return mg ? (aio_req)mg->mg_ptr : 0; 300 return mg ? (aio_req)mg->mg_ptr : 0;
275} 301}
276 302
277static void aio_grp_feed (aio_req grp) 303static void aio_grp_feed (aio_req grp)
278{ 304{
279 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 305 if (grp->sv2 && SvOK (grp->sv2))
280 { 306 {
281 int old_len = grp->length;
282
283 if (grp->fh2 && SvOK (grp->fh2))
284 {
285 dSP; 307 dSP;
286 308
287 ENTER; 309 ENTER;
288 SAVETMPS; 310 SAVETMPS;
289 PUSHMARK (SP); 311 PUSHMARK (SP);
290 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 312 XPUSHs (req_sv (grp, aio_grp_stash));
291 PUTBACK; 313 PUTBACK;
292 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 314 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293 SPAGAIN; 315 SPAGAIN;
294 FREETMPS; 316 FREETMPS;
295 LEAVE; 317 LEAVE;
296 }
297
298 /* stop if no progress has been made */
299 if (old_len == grp->length)
300 {
301 SvREFCNT_dec (grp->fh2);
302 grp->fh2 = 0;
303 break;
304 }
305 } 318 }
306} 319}
307 320
308static void aio_grp_dec (aio_req grp) 321static void req_submit (eio_req *req)
309{ 322{
310 --grp->length; 323 eio_submit (req);
311 324
312 /* call feeder, if applicable */ 325 if (expect_false (on_next_submit))
313 aio_grp_feed (grp);
314
315 /* finish, if done */
316 if (!grp->length && grp->fd)
317 { 326 {
318 req_invoke (grp); 327 dSP;
319 req_free (grp); 328 SV *cb = sv_2mortal (on_next_submit);
329
330 on_next_submit = 0;
331
332 PUSHMARK (SP);
333 PUTBACK;
334 call_sv (cb, G_DISCARD | G_EVAL);
320 } 335 }
321} 336}
322 337
323static void poll_wait () 338static int req_invoke (eio_req *req)
324{ 339{
325 fd_set rfd; 340 if (req->flags & FLAG_SV2_RO_OFF)
341 SvREADONLY_off (req->sv2);
326 342
327 while (nreqs) 343 if (!EIO_CANCELLED (req) && req->callback)
328 { 344 {
329 int size;
330#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
331 LOCK (reslock);
332#endif
333 size = res_queue.size;
334#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
335 UNLOCK (reslock);
336#endif
337
338 if (size)
339 return;
340
341 FD_ZERO(&rfd);
342 FD_SET(respipe [0], &rfd);
343
344 select (respipe [0] + 1, &rfd, 0, 0, 0);
345 }
346}
347
348static void req_invoke (aio_req req)
349{
350 dSP; 345 dSP;
351 346 static SV *sv_result_cache; /* caches the result integer SV */
352 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 347 SV *sv_result;
353 {
354 errno = req->errorno;
355 348
356 ENTER; 349 ENTER;
357 SAVETMPS; 350 SAVETMPS;
358 PUSHMARK (SP); 351 PUSHMARK (SP);
359 EXTEND (SP, 1); 352 EXTEND (SP, 1);
360 353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
356 {
357 sv_result = sv_result_cache; sv_result_cache = 0;
358 SvIV_set (sv_result, req->result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
365
361 switch (req->type) 366 switch (req->type)
362 { 367 {
363 case REQ_READDIR: 368 case EIO_READDIR:
364 { 369 {
365 SV *rv = &PL_sv_undef; 370 SV *rv = &PL_sv_undef;
366 371
367 if (req->result >= 0) 372 if (req->result >= 0)
368 { 373 {
369 int i; 374 int i;
370 char *buf = req->data2ptr; 375 char *names = (char *)req->ptr2;
376 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
371 AV *av = newAV (); 377 AV *av = newAV ();
372 378
373 av_extend (av, req->result - 1); 379 av_extend (av, req->result - 1);
374 380
375 for (i = 0; i < req->result; ++i) 381 for (i = 0; i < req->result; ++i)
376 { 382 {
377 SV *sv = newSVpv (buf, 0); 383 if (req->int1 & EIO_READDIR_DENTS)
384 {
385 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
378 386
387 if (req->int1 & EIO_READDIR_CUSTOM2)
388 {
389 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
390 AV *avent = newAV ();
391
392 av_extend (avent, 2);
393
394 if (!sv_type [ent->type])
395 {
396 sv_type [ent->type] = newSViv (ent->type);
397 SvREADONLY_on (sv_type [ent->type]);
398 }
399
400 av_store (avent, 0, namesv);
401 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
402 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
403
404 av_store (av, i, newRV_noinc ((SV *)avent));
405 }
406 else
379 av_store (av, i, sv); 407 av_store (av, i, namesv);
408
409 ++ent;
410 }
411 else
412 {
413 SV *name = newSVpv (names, 0);
414 av_store (av, i, name);
380 buf += SvCUR (sv) + 1; 415 names += SvCUR (name) + 1;
416 }
381 } 417 }
382 418
383 rv = sv_2mortal (newRV_noinc ((SV *)av)); 419 rv = sv_2mortal (newRV_noinc ((SV *)av));
384 } 420 }
385 421
386 PUSHs (rv); 422 PUSHs (rv);
423
424 if (req->int1 & EIO_READDIR_CUSTOM1)
425 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
387 } 426 }
388 break; 427 break;
389 428
390 case REQ_OPEN: 429 case EIO_OPEN:
391 { 430 {
392 /* convert fd to fh */ 431 /* convert fd to fh */
393 SV *fh; 432 SV *fh = &PL_sv_undef;
394 433
395 PUSHs (sv_2mortal (newSViv (req->result))); 434 if (req->result >= 0)
396 PUTBACK; 435 {
397 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 436 GV *gv = (GV *)sv_newmortal ();
398 SPAGAIN; 437 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
438 char sym [64];
439 int symlen;
440
441 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
442 gv_init (gv, aio_stash, sym, symlen, 0);
399 443
400 fh = SvREFCNT_inc (POPs); 444 symlen = snprintf (
445 sym,
446 sizeof (sym),
447 "%s&=%d",
448 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
449 (int)req->result
450 );
401 451
452 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
453 fh = (SV *)gv;
454 }
455
402 PUSHMARK (SP); 456 PUSHs (fh);
403 XPUSHs (sv_2mortal (fh));
404 } 457 }
405 break; 458 break;
406 459
460 case EIO_STATVFS:
461 case EIO_FSTATVFS:
462 {
463 SV *rv = &PL_sv_undef;
464
465 if (req->result >= 0)
466 {
467 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
468 HV *hv = newHV ();
469
470 rv = sv_2mortal (newRV_noinc ((SV *)hv));
471
472 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
473 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
474 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
475 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
476 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
477 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
478 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
479 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
480 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
481 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
482 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
483 }
484
485 PUSHs (rv);
486 }
487
488 break;
489
407 case REQ_GROUP: 490 case EIO_GROUP:
408 req->fd = 2; /* mark group as finished */ 491 req->int1 = 2; /* mark group as finished */
409 492
410 if (req->data) 493 if (req->sv1)
411 { 494 {
412 int i; 495 int i;
413 AV *av = (AV *)req->data; 496 AV *av = (AV *)req->sv1;
414 497
415 EXTEND (SP, AvFILL (av) + 1); 498 EXTEND (SP, AvFILL (av) + 1);
416 for (i = 0; i <= AvFILL (av); ++i) 499 for (i = 0; i <= AvFILL (av); ++i)
417 PUSHs (*av_fetch (av, i, 0)); 500 PUSHs (*av_fetch (av, i, 0));
418 } 501 }
419 break; 502 break;
420 503
421 case REQ_NOP: 504 case EIO_NOP:
422 case REQ_BUSY: 505 case EIO_BUSY:
423 break; 506 break;
424 507
508 case EIO_READLINK:
509 if (req->result > 0)
510 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
511 break;
512
513 case EIO_STAT:
514 case EIO_LSTAT:
515 case EIO_FSTAT:
516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
517 PL_laststatval = req->result;
518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
519 PUSHs (sv_result);
520 break;
521
522 case EIO_READ:
523 {
524 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
525 *SvEND (req->sv2) = 0;
526 SvPOK_only (req->sv2);
527 SvSETMAGIC (req->sv2);
528 PUSHs (sv_result);
529 }
530 break;
531
532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
533 if (req->result > 0)
534 SvIV_set (sv_result, 0);
535 /* FALLTHROUGH */
536
425 default: 537 default:
426 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
427 break; 539 break;
428 } 540 }
429 541
542 errno = req->errorno;
430 543
431 PUTBACK; 544 PUTBACK;
432 call_sv (req->callback, G_VOID | G_EVAL); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
433 SPAGAIN; 546 SPAGAIN;
547
548 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
549 SvREFCNT_dec (sv_result);
550 else
551 sv_result_cache = sv_result;
434 552
435 FREETMPS; 553 FREETMPS;
436 LEAVE; 554 LEAVE;
555
556 PUTBACK;
437 } 557 }
438 558
439 if (req->grp) 559 return !!SvTRUE (ERRSV);
440 {
441 aio_req grp = req->grp;
442
443 /* unlink request */
444 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
445 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
446
447 if (grp->grp_first == req)
448 grp->grp_first = req->grp_next;
449
450 aio_grp_dec (grp);
451 }
452
453 if (SvTRUE (ERRSV))
454 {
455 req_free (req);
456 croak (0);
457 }
458} 560}
459 561
460static void req_free (aio_req req) 562static void req_destroy (aio_req req)
461{ 563{
462 if (req->self) 564 if (req->self)
463 { 565 {
464 sv_unmagic (req->self, PERL_MAGIC_ext); 566 sv_unmagic (req->self, PERL_MAGIC_ext);
465 SvREFCNT_dec (req->self); 567 SvREFCNT_dec (req->self);
466 } 568 }
467 569
468 SvREFCNT_dec (req->data);
469 SvREFCNT_dec (req->fh); 570 SvREFCNT_dec (req->sv1);
470 SvREFCNT_dec (req->fh2); 571 SvREFCNT_dec (req->sv2);
471 SvREFCNT_dec (req->callback); 572 SvREFCNT_dec (req->callback);
472 Safefree (req->statdata);
473
474 if (req->type == REQ_READDIR)
475 free (req->data2ptr);
476 573
477 Safefree (req); 574 Safefree (req);
478} 575}
479 576
480static void req_cancel_subs (aio_req grp) 577static void req_cancel_subs (aio_req grp)
481{ 578{
482 aio_req sub; 579 aio_req sub;
483 580
484 if (grp->type != REQ_GROUP) 581 if (grp->type != EIO_GROUP)
485 return; 582 return;
486 583
487 SvREFCNT_dec (grp->fh2); 584 SvREFCNT_dec (grp->sv2);
488 grp->fh2 = 0; 585 grp->sv2 = 0;
489 586
490 for (sub = grp->grp_first; sub; sub = sub->grp_next) 587 eio_grp_cancel (grp);
491 req_cancel (sub);
492} 588}
493 589
494static void req_cancel (aio_req req) 590static void
591create_respipe (void)
495{ 592{
496 req->flags |= FLAG_CANCELLED; 593 if (s_epipe_renew (&respipe))
497 594 croak ("IO::AIO: unable to initialize result pipe");
498 req_cancel_subs (req);
499} 595}
500 596
501static int poll_cb (int max) 597static void poll_wait (void)
502{ 598{
503 dSP; 599 while (eio_nreqs ())
504 int count = 0;
505 int do_croak = 0;
506 aio_req req;
507
508 while (max <= 0 || count < max)
509 { 600 {
601 int size;
602
510 LOCK (reslock); 603 X_LOCK (reslock);
511 req = reqq_shift (&res_queue); 604 size = res_queue.size;
512
513 if (req)
514 {
515 if (!res_queue.size)
516 {
517 /* read any signals sent by the worker threads */
518 char buf [32];
519 while (read (respipe [0], buf, 32) == 32)
520 ;
521 }
522 }
523
524 UNLOCK (reslock); 605 X_UNLOCK (reslock);
525 606
526 if (!req) 607 if (size)
527 break; 608 return;
528 609
529 --nreqs; 610 etp_maybe_start_thread ();
530 611
531 if (req->type == REQ_QUIT) 612 s_epipe_wait (&respipe);
532 started--;
533 else if (req->type == REQ_GROUP && req->length)
534 {
535 req->fd = 1; /* mark request as delayed */
536 continue;
537 }
538 else
539 {
540 if (req->type == REQ_READ)
541 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
542
543 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
544 SvREADONLY_off (req->data);
545
546 if (req->statdata)
547 {
548 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
549 PL_laststatval = req->result;
550 PL_statcache = *(req->statdata);
551 }
552
553 req_invoke (req);
554
555 count++;
556 }
557
558 req_free (req);
559 } 613 }
560
561 return count;
562} 614}
563 615
564static void *aio_proc(void *arg); 616static int poll_cb (void)
565
566static void start_thread (void)
567{ 617{
568 sigset_t fullsigset, oldsigset; 618 for (;;)
569 pthread_attr_t attr;
570
571 worker *wrk = calloc (1, sizeof (worker));
572
573 if (!wrk)
574 croak ("unable to allocate worker thread data");
575
576 pthread_attr_init (&attr);
577 pthread_attr_setstacksize (&attr, STACKSIZE);
578 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
579
580 sigfillset (&fullsigset);
581
582 LOCK (wrklock);
583 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
584
585 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
586 { 619 {
587 wrk->prev = &wrk_first; 620 int res = eio_poll ();
588 wrk->next = wrk_first.next; 621
589 wrk_first.next->prev = wrk; 622 if (res > 0)
590 wrk_first.next = wrk; 623 croak (0);
591 started++; 624
625 if (!max_outstanding || max_outstanding > eio_nreqs ())
626 return res;
627
628 poll_wait ();
592 } 629 }
593 else
594 free (wrk);
595
596 sigprocmask (SIG_SETMASK, &oldsigset, 0);
597 UNLOCK (wrklock);
598} 630}
599 631
600static void req_send (aio_req req) 632static void atfork_child (void)
601{ 633{
602 while (started < wanted && nreqs >= started) 634 create_respipe ();
603 start_thread ();
604
605 ++nreqs;
606
607 LOCK (reqlock);
608 reqq_push (&req_queue, req);
609 pthread_cond_signal (&reqwait);
610 UNLOCK (reqlock);
611}
612
613static void end_thread (void)
614{
615 aio_req req;
616
617 Newz (0, req, 1, aio_cb);
618
619 req->type = REQ_QUIT;
620 req->pri = PRI_MAX + PRI_BIAS;
621
622 req_send (req);
623}
624
625static void min_parallel (int nthreads)
626{
627 if (wanted < nthreads)
628 wanted = nthreads;
629}
630
631static void max_parallel (int nthreads)
632{
633 int cur = started;
634
635 if (wanted > nthreads)
636 wanted = nthreads;
637
638 while (cur > wanted)
639 {
640 end_thread ();
641 cur--;
642 }
643
644 while (started > wanted)
645 {
646 poll_wait ();
647 poll_cb (0);
648 }
649}
650
651static void create_pipe ()
652{
653 if (pipe (respipe))
654 croak ("unable to initialize result pipe");
655
656 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
657 croak ("cannot set result pipe to nonblocking mode");
658
659 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
660 croak ("cannot set result pipe to nonblocking mode");
661} 635}
662 636
663/*****************************************************************************/ 637/*****************************************************************************/
664/* work around various missing functions */
665 638
666#if !HAVE_PREADWRITE 639#if !_POSIX_MAPPED_FILES
667# define pread aio_pread 640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
668# define pwrite aio_pwrite 641# define munmap(addr,length) (errno = ENOSYS, -1)
669 642# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
670/* 643# define PROT_NONE 0
671 * make our pread/pwrite safe against themselves, but not against 644# define PROT_WRITE 0
672 * normal read/write by using a mutex. slows down execution a lot, 645# define MAP_PRIVATE 0
673 * but that's your problem, not mine. 646# define MAP_SHARED 0
674 */ 647# define MAP_FIXED 0
675static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
676
677static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
678{
679 ssize_t res;
680 off_t ooffset;
681
682 LOCK (preadwritelock);
683 ooffset = lseek (fd, 0, SEEK_CUR);
684 lseek (fd, offset, SEEK_SET);
685 res = read (fd, buf, count);
686 lseek (fd, ooffset, SEEK_SET);
687 UNLOCK (preadwritelock);
688
689 return res;
690}
691
692static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
693{
694 ssize_t res;
695 off_t ooffset;
696
697 LOCK (preadwritelock);
698 ooffset = lseek (fd, 0, SEEK_CUR);
699 lseek (fd, offset, SEEK_SET);
700 res = write (fd, buf, count);
701 lseek (fd, offset, SEEK_SET);
702 UNLOCK (preadwritelock);
703
704 return res;
705}
706#endif
707
708#if !HAVE_FDATASYNC
709# define fdatasync fsync
710#endif
711
712#if !HAVE_READAHEAD
713# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
714
715static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
716{
717 dBUF;
718
719 while (count > 0)
720 {
721 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
722
723 pread (fd, aio_buf, len, offset);
724 offset += len;
725 count -= len;
726 }
727
728 errno = 0;
729}
730
731#endif
732
733#if !HAVE_READDIR_R
734# define readdir_r aio_readdir_r
735
736static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
737
738static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
739{
740 struct dirent *e;
741 int errorno;
742
743 LOCK (readdirlock);
744
745 e = readdir (dirp);
746 errorno = errno;
747
748 if (e)
749 {
750 *res = ent;
751 strcpy (ent->d_name, e->d_name);
752 }
753 else
754 *res = 0;
755
756 UNLOCK (readdirlock);
757
758 errno = errorno;
759 return e ? 0 : -1;
760}
761#endif
762
763/* sendfile always needs emulation */
764static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
765{
766 ssize_t res;
767
768 if (!count)
769 return 0;
770
771#if HAVE_SENDFILE
772# if __linux
773 res = sendfile (ofd, ifd, &offset, count);
774
775# elif __freebsd
776 /*
777 * Of course, the freebsd sendfile is a dire hack with no thoughts
778 * wasted on making it similar to other I/O functions.
779 */
780 {
781 off_t sbytes;
782 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
783
784 if (res < 0 && sbytes)
785 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
786 res = sbytes;
787 }
788
789# elif __hpux
790 res = sendfile (ofd, ifd, offset, count, 0, 0);
791
792# elif __solaris
793 {
794 struct sendfilevec vec;
795 size_t sbytes;
796
797 vec.sfv_fd = ifd;
798 vec.sfv_flag = 0;
799 vec.sfv_off = offset;
800 vec.sfv_len = count;
801
802 res = sendfilev (ofd, &vec, 1, &sbytes);
803
804 if (res < 0 && sbytes)
805 res = sbytes;
806 }
807
808# endif 648#endif
809#else
810 res = -1;
811 errno = ENOSYS;
812#endif
813 649
814 if (res < 0 650#define MMAP_MAGIC PERL_MAGIC_ext
815 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
816#if __solaris
817 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
818#endif
819 )
820 )
821 {
822 /* emulate sendfile. this is a major pain in the ass */
823 dBUF;
824 651
825 res = 0; 652static int
653mmap_free (pTHX_ SV *sv, MAGIC *mg)
654{
655 int old_errno = errno;
656 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
657 errno = old_errno;
826 658
827 while (count) 659 mg->mg_obj = 0; /* just in case */
828 {
829 ssize_t cnt;
830
831 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
832 660
833 if (cnt <= 0) 661 SvREADONLY_off (sv);
834 {
835 if (cnt && !res) res = -1;
836 break;
837 }
838 662
839 cnt = write (ofd, aio_buf, cnt); 663 if (SvPVX (sv) != mg->mg_ptr)
664 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
840 665
841 if (cnt <= 0) 666 SvCUR_set (sv, 0);
842 { 667 SvPVX (sv) = 0;
843 if (cnt && !res) res = -1; 668 SvOK_off (sv);
844 break;
845 }
846 669
847 offset += cnt;
848 res += cnt;
849 count -= cnt;
850 }
851 }
852
853 return res; 670 return 0;
854} 671}
855 672
856/* read a full directory */ 673static MGVTBL mmap_vtbl = {
857static void scandir_ (aio_req req, worker *self) 674 0, 0, 0, 0, mmap_free
858{ 675};
859 DIR *dirp;
860 union
861 {
862 struct dirent d;
863 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
864 } *u;
865 struct dirent *entp;
866 char *name, *names;
867 int memlen = 4096;
868 int memofs = 0;
869 int res = 0;
870 int errorno;
871
872 LOCK (wrklock);
873 self->dirp = dirp = opendir (req->dataptr);
874 self->dbuf = u = malloc (sizeof (*u));
875 req->data2ptr = names = malloc (memlen);
876 UNLOCK (wrklock);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 {
891 int len = strlen (name) + 1;
892
893 res++;
894
895 while (memofs + len > memlen)
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 }
909 }
910
911 if (errno)
912 res = -1;
913
914 req->result = res;
915}
916 676
917/*****************************************************************************/ 677/*****************************************************************************/
918 678
919static void *aio_proc (void *thr_arg) 679static SV *
680get_cb (SV *cb_sv)
920{ 681{
921 aio_req req; 682 SvGETMAGIC (cb_sv);
922 int type; 683 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 {
931 self->req = req = reqq_shift (&req_queue);
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
949
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 }
988
989 req->errorno = errno;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009}
1010
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068} 684}
1069 685
1070#define dREQ \ 686#define dREQ \
687 SV *cb_cv; \
1071 aio_req req; \ 688 aio_req req; \
1072 int req_pri = next_pri; \ 689 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \ 690 next_pri = EIO_PRI_DEFAULT; \
1074 \ 691 \
1075 if (SvOK (callback) && !SvROK (callback)) \ 692 cb_cv = get_cb (callback); \
1076 croak ("callback must be undef or of reference type"); \
1077 \ 693 \
1078 Newz (0, req, 1, aio_cb); \ 694 Newz (0, req, 1, eio_req); \
1079 if (!req) \ 695 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \ 696 croak ("out of memory during eio_req allocation"); \
1081 \ 697 \
1082 req->callback = newSVsv (callback); \ 698 req->callback = SvREFCNT_inc (cb_cv); \
1083 req->pri = req_pri 699 req->pri = req_pri
1084 700
1085#define REQ_SEND \ 701#define REQ_SEND \
702 PUTBACK; \
1086 req_send (req); \ 703 req_submit (req); \
704 SPAGAIN; \
1087 \ 705 \
1088 if (GIMME_V != G_VOID) \ 706 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 707 XPUSHs (req_sv (req, aio_req_stash));
1090 708
1091MODULE = IO::AIO PACKAGE = IO::AIO 709MODULE = IO::AIO PACKAGE = IO::AIO
1092 710
1093PROTOTYPES: ENABLE 711PROTOTYPES: ENABLE
1094 712
1095BOOT: 713BOOT:
1096{ 714{
715 static const struct {
716 const char *name;
717 IV iv;
718 } *civ, const_iv[] = {
719# define const_niv(name, value) { # name, (IV) value },
720# define const_iv(name) { # name, (IV) name },
721# define const_eio(name) { # name, (IV) EIO_ ## name },
722 const_iv (EXDEV)
723 const_iv (ENOSYS)
724 const_iv (O_RDONLY)
725 const_iv (O_WRONLY)
726 const_iv (O_RDWR)
727 const_iv (O_CREAT)
728 const_iv (O_TRUNC)
729 const_iv (O_EXCL)
730 const_iv (O_APPEND)
731#ifndef _WIN32
732 const_iv (S_IFIFO)
733#endif
734 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
735 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
736 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
737 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
738 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
739 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
740
741 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
742 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
743 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
744 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
745 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
746
747 const_iv (ST_RDONLY)
748 const_iv (ST_NOSUID)
749 const_iv (ST_NODEV)
750 const_iv (ST_NOEXEC)
751 const_iv (ST_SYNCHRONOUS)
752 const_iv (ST_MANDLOCK)
753 const_iv (ST_WRITE)
754 const_iv (ST_APPEND)
755 const_iv (ST_IMMUTABLE)
756 const_iv (ST_NOATIME)
757 const_iv (ST_NODIRATIME)
758 const_iv (ST_RELATIME)
759
760 const_iv (PROT_NONE)
761 const_iv (PROT_EXEC)
762 const_iv (PROT_READ)
763 const_iv (PROT_WRITE)
764
765 /*const_iv (MAP_FIXED)*/
766 const_iv (MAP_PRIVATE)
767 const_iv (MAP_SHARED)
768 const_iv (MAP_ANONYMOUS)
769
770 /* linuxish */
771 const_iv (MAP_HUGETLB)
772 const_iv (MAP_LOCKED)
773 const_iv (MAP_NORESERVE)
774 const_iv (MAP_POPULATE)
775 const_iv (MAP_NONBLOCK)
776
777 const_eio (MCL_FUTURE)
778 const_eio (MCL_CURRENT)
779
780 const_eio (MS_ASYNC)
781 const_eio (MS_INVALIDATE)
782 const_eio (MS_SYNC)
783
784 const_eio (MT_MODIFY)
785
786 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
787 const_eio (SYNC_FILE_RANGE_WRITE)
788 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
789
790 const_eio (READDIR_DENTS)
791 const_eio (READDIR_DIRS_FIRST)
792 const_eio (READDIR_STAT_ORDER)
793 const_eio (READDIR_FOUND_UNKNOWN)
794
795 const_eio (DT_UNKNOWN)
796 const_eio (DT_FIFO)
797 const_eio (DT_CHR)
798 const_eio (DT_DIR)
799 const_eio (DT_BLK)
800 const_eio (DT_REG)
801 const_eio (DT_LNK)
802 const_eio (DT_SOCK)
803 const_eio (DT_WHT)
804 };
805
1097 HV *stash = gv_stashpv ("IO::AIO", 1); 806 aio_stash = gv_stashpv ("IO::AIO" , 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 807 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 808 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101 809
810 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
811 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
812
813 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
814
1102 create_pipe (); 815 create_respipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105 816
817 if (eio_init (want_poll, done_poll) < 0)
818 croak ("IO::AIO: unable to initialise eio library");
819
820 /* atfork child called in fifo order, so before eio's handler */
821 X_THREAD_ATFORK (0, 0, atfork_child);
822}
823
1106void 824void
1107min_parallel (nthreads) 825max_poll_reqs (int nreqs)
1108 int nthreads
1109 PROTOTYPE: $ 826 PROTOTYPE: $
827 CODE:
828 eio_set_max_poll_reqs (nreqs);
1110 829
1111void 830void
1112max_parallel (nthreads) 831max_poll_time (double nseconds)
1113 int nthreads
1114 PROTOTYPE: $ 832 PROTOTYPE: $
833 CODE:
834 eio_set_max_poll_time (nseconds);
1115 835
1116void 836void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef) 837min_parallel (int nthreads)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$ 838 PROTOTYPE: $
839 CODE:
840 eio_set_min_parallel (nthreads);
841
842void
843max_parallel (int nthreads)
844 PROTOTYPE: $
845 CODE:
846 eio_set_max_parallel (nthreads);
847
848void
849max_idle (int nthreads)
850 PROTOTYPE: $
851 CODE:
852 eio_set_max_idle (nthreads);
853
854void
855max_outstanding (int maxreqs)
856 PROTOTYPE: $
857 CODE:
858 max_outstanding = maxreqs;
859
860void
861aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1123 PPCODE: 862 PPCODE:
1124{ 863{
1125 dREQ; 864 dREQ;
1126 865
1127 req->type = REQ_OPEN; 866 req->type = EIO_OPEN;
1128 req->data = newSVsv (pathname); 867 req->sv1 = newSVsv (pathname);
1129 req->dataptr = SvPVbyte_nolen (req->data); 868 req->ptr1 = SvPVbyte_nolen (req->sv1);
1130 req->fd = flags; 869 req->int1 = flags;
1131 req->mode = mode; 870 req->int2 = mode;
1132 871
1133 REQ_SEND; 872 REQ_SEND;
1134} 873}
1135 874
1136void 875void
1137aio_close (fh,callback=&PL_sv_undef) 876aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 877 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC 878 aio_fsync = EIO_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC 879 aio_fdatasync = EIO_FDATASYNC
1145 PPCODE: 880 PPCODE:
1146{ 881{
882 int fd = s_fileno_croak (fh, 0);
1147 dREQ; 883 dREQ;
1148 884
1149 req->type = ix; 885 req->type = ix;
1150 req->fh = newSVsv (fh); 886 req->sv1 = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 887 req->int1 = fd;
1152 888
1153 REQ_SEND (req); 889 REQ_SEND (req);
1154} 890}
1155 891
1156void 892void
893aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
894 PPCODE:
895{
896 int fd = s_fileno_croak (fh, 0);
897 dREQ;
898
899 req->type = EIO_SYNC_FILE_RANGE;
900 req->sv1 = newSVsv (fh);
901 req->int1 = fd;
902 req->offs = offset;
903 req->size = nbytes;
904 req->int2 = flags;
905
906 REQ_SEND (req);
907}
908
909void
910aio_close (SV *fh, SV *callback=&PL_sv_undef)
911 PPCODE:
912{
913 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
914 int fd = s_fileno_croak (fh, 0);
915 dREQ;
916
917 if (close_pipe < 0)
918 {
919 int pipefd [2];
920
921 if (pipe (pipefd) < 0
922 || close (pipefd [1]) < 0
923 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
924 abort (); /*D*/
925
926 close_pipe = pipefd [0];
927 }
928
929 req->type = EIO_DUP2;
930 req->int1 = close_pipe;
931 req->sv2 = newSVsv (fh);
932 req->int2 = fd;
933
934 REQ_SEND (req);
935}
936
937void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 938aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS: 939 ALIAS:
1165 aio_read = REQ_READ 940 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 941 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 942 PPCODE:
1169{ 943{
1170 aio_req req;
1171 STRLEN svlen; 944 STRLEN svlen;
945 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 946 char *svptr = SvPVbyte (data, svlen);
1173 947 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 948
1177 if (dataoffset < 0) 949 if (dataoffset < 0)
1178 dataoffset += svlen; 950 dataoffset += svlen;
1179 951
1180 if (dataoffset < 0 || dataoffset > svlen) 952 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 953 croak ("dataoffset outside of data scalar");
1182 954
1183 if (ix == REQ_WRITE) 955 if (ix == EIO_WRITE)
1184 { 956 {
1185 /* write: check length and adjust. */ 957 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 958 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 959 len = svlen - dataoffset;
1188 } 960 }
1189 else 961 else
1190 { 962 {
1191 /* read: grow scalar as necessary */ 963 /* read: check type and grow scalar as necessary */
964 SvUPGRADE (data, SVt_PV);
1192 svptr = SvGROW (data, length + dataoffset); 965 svptr = SvGROW (data, len + dataoffset + 1);
1193 } 966 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 967
1198 { 968 {
1199 dREQ; 969 dREQ;
1200 970
1201 req->type = ix; 971 req->type = ix;
1202 req->fh = newSVsv (fh); 972 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 973 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 974 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 975 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 976 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 977 req->ptr2 = (char *)svptr + dataoffset;
978 req->stroffset = dataoffset;
1209 979
1210 if (!SvREADONLY (data)) 980 if (!SvREADONLY (data))
1211 { 981 {
1212 SvREADONLY_on (data); 982 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 983 req->flags |= FLAG_SV2_RO_OFF;
1214 } 984 }
1215 985
1216 REQ_SEND; 986 REQ_SEND;
1217 } 987 }
1218} 988}
1219 989
1220void 990void
1221aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 991aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1222 SV * out_fh
1223 SV * in_fh
1224 UV in_offset
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 992 PPCODE:
1229{ 993{
994 SV *data;
995 dREQ;
996
997 req->type = EIO_READLINK;
998 req->sv1 = newSVsv (path);
999 req->ptr1 = SvPVbyte_nolen (req->sv1);
1000
1001 REQ_SEND;
1002}
1003
1004void
1005aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1006 PPCODE:
1007{
1008 int ifd = s_fileno_croak (in_fh , 0);
1009 int ofd = s_fileno_croak (out_fh, 1);
1230 dREQ; 1010 dREQ;
1231 1011
1232 req->type = REQ_SENDFILE; 1012 req->type = EIO_SENDFILE;
1233 req->fh = newSVsv (out_fh); 1013 req->sv1 = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1014 req->int1 = ofd;
1235 req->fh2 = newSVsv (in_fh); 1015 req->sv2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1016 req->int2 = ifd;
1237 req->offset = in_offset; 1017 req->offs = in_offset;
1238 req->length = length; 1018 req->size = length;
1239 1019
1240 REQ_SEND; 1020 REQ_SEND;
1241} 1021}
1242 1022
1243void 1023void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1024aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE: 1025 PPCODE:
1251{ 1026{
1027 int fd = s_fileno_croak (fh, 0);
1252 dREQ; 1028 dREQ;
1253 1029
1254 req->type = REQ_READAHEAD; 1030 req->type = EIO_READAHEAD;
1255 req->fh = newSVsv (fh); 1031 req->sv1 = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1032 req->int1 = fd;
1257 req->offset = offset; 1033 req->offs = offset;
1258 req->length = length; 1034 req->size = length;
1259 1035
1260 REQ_SEND; 1036 REQ_SEND;
1261} 1037}
1262 1038
1263void 1039void
1264aio_stat (fh_or_path,callback=&PL_sv_undef) 1040aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS: 1041 ALIAS:
1268 aio_stat = REQ_STAT 1042 aio_stat = EIO_STAT
1269 aio_lstat = REQ_LSTAT 1043 aio_lstat = EIO_LSTAT
1044 aio_statvfs = EIO_STATVFS
1270 PPCODE: 1045 PPCODE:
1271{ 1046{
1272 dREQ; 1047 dREQ;
1273 1048
1274 New (0, req->statdata, 1, Stat_t); 1049 req->sv1 = newSVsv (fh_or_path);
1275 if (!req->statdata)
1276 {
1277 req_free (req);
1278 croak ("out of memory during aio_req->statdata allocation");
1279 }
1280 1050
1281 if (SvPOK (fh_or_path)) 1051 if (SvPOK (req->sv1))
1282 { 1052 {
1283 req->type = ix; 1053 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data); 1054 req->ptr1 = SvPVbyte_nolen (req->sv1);
1286 } 1055 }
1287 else 1056 else
1288 { 1057 {
1289 req->type = REQ_FSTAT; 1058 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1290 req->fh = newSVsv (fh_or_path);
1291 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292 } 1060 }
1293 1061
1294 REQ_SEND; 1062 REQ_SEND;
1295} 1063}
1296 1064
1297void 1065void
1066aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1067 PPCODE:
1068{
1069 dREQ;
1070
1071 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1072 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1073 req->sv1 = newSVsv (fh_or_path);
1074
1075 if (SvPOK (req->sv1))
1076 {
1077 req->type = EIO_UTIME;
1078 req->ptr1 = SvPVbyte_nolen (req->sv1);
1079 }
1080 else
1081 {
1082 req->type = EIO_FUTIME;
1083 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1084 }
1085
1086 REQ_SEND;
1087}
1088
1089void
1090aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1091 PPCODE:
1092{
1093 dREQ;
1094
1095 req->sv1 = newSVsv (fh_or_path);
1096 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1097
1098 if (SvPOK (req->sv1))
1099 {
1100 req->type = EIO_TRUNCATE;
1101 req->ptr1 = SvPVbyte_nolen (req->sv1);
1102 }
1103 else
1104 {
1105 req->type = EIO_FTRUNCATE;
1106 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1107 }
1108
1109 REQ_SEND;
1110}
1111
1112void
1113aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1114 ALIAS:
1115 aio_chmod = EIO_CHMOD
1116 aio_mkdir = EIO_MKDIR
1117 PPCODE:
1118{
1119 dREQ;
1120
1121 req->int2 = mode;
1122 req->sv1 = newSVsv (fh_or_path);
1123
1124 if (SvPOK (req->sv1))
1125 {
1126 req->type = ix;
1127 req->ptr1 = SvPVbyte_nolen (req->sv1);
1128 }
1129 else
1130 {
1131 req->type = EIO_FCHMOD;
1132 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1133 }
1134
1135 REQ_SEND;
1136}
1137
1138void
1139aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1140 PPCODE:
1141{
1142 dREQ;
1143
1144 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1145 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1146 req->sv1 = newSVsv (fh_or_path);
1147
1148 if (SvPOK (req->sv1))
1149 {
1150 req->type = EIO_CHOWN;
1151 req->ptr1 = SvPVbyte_nolen (req->sv1);
1152 }
1153 else
1154 {
1155 req->type = EIO_FCHOWN;
1156 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1157 }
1158
1159 REQ_SEND;
1160}
1161
1162void
1163aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1164 PPCODE:
1165{
1166 dREQ;
1167
1168 req->type = EIO_READDIR;
1169 req->sv1 = newSVsv (pathname);
1170 req->ptr1 = SvPVbyte_nolen (req->sv1);
1171 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1172
1173 if (flags & EIO_READDIR_DENTS)
1174 req->int1 |= EIO_READDIR_CUSTOM2;
1175
1176 REQ_SEND;
1177}
1178
1179void
1298aio_unlink (pathname,callback=&PL_sv_undef) 1180aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299 SV * pathname
1300 SV * callback
1301 ALIAS: 1181 ALIAS:
1302 aio_unlink = REQ_UNLINK 1182 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1183 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1184 aio_readdir = EIO_READDIR
1305 PPCODE: 1185 PPCODE:
1306{ 1186{
1307 dREQ; 1187 dREQ;
1308 1188
1309 req->type = ix; 1189 req->type = ix;
1310 req->data = newSVsv (pathname); 1190 req->sv1 = newSVsv (pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1191 req->ptr1 = SvPVbyte_nolen (req->sv1);
1312 1192
1313 REQ_SEND; 1193 REQ_SEND;
1314} 1194}
1315 1195
1316void 1196void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1197aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1198 ALIAS:
1322 aio_link = REQ_LINK 1199 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1200 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1201 aio_rename = EIO_RENAME
1325 PPCODE: 1202 PPCODE:
1326{ 1203{
1327 dREQ; 1204 dREQ;
1328 1205
1329 req->type = ix; 1206 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1207 req->sv1 = newSVsv (oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1208 req->ptr1 = SvPVbyte_nolen (req->sv1);
1332 req->data = newSVsv (newpath); 1209 req->sv2 = newSVsv (newpath);
1333 req->dataptr = SvPVbyte_nolen (req->data); 1210 req->ptr2 = SvPVbyte_nolen (req->sv2);
1334 1211
1335 REQ_SEND; 1212 REQ_SEND;
1336} 1213}
1337 1214
1338void 1215void
1339aio_busy (delay,callback=&PL_sv_undef) 1216aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1217 PPCODE:
1343{ 1218{
1344 dREQ; 1219 dREQ;
1345 1220
1346 req->type = REQ_BUSY; 1221 req->type = EIO_MKNOD;
1347 req->fd = delay < 0. ? 0 : delay; 1222 req->sv1 = newSVsv (pathname);
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1223 req->ptr1 = SvPVbyte_nolen (req->sv1);
1349 1224 req->int2 = (mode_t)mode;
1225 req->offs = dev;
1226
1350 REQ_SEND; 1227 REQ_SEND;
1351} 1228}
1352 1229
1353void 1230void
1354aio_group (callback=&PL_sv_undef) 1231aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1355 SV * callback 1232 ALIAS:
1356 PROTOTYPE: ;$ 1233 aio_mtouch = EIO_MTOUCH
1234 aio_msync = EIO_MSYNC
1357 PPCODE: 1235 PPCODE:
1358{ 1236{
1237 STRLEN svlen;
1238 char *svptr = SvPVbyte (data, svlen);
1239 UV len = SvUV (length);
1240
1241 if (offset < 0)
1242 offset += svlen;
1243
1244 if (offset < 0 || offset > svlen)
1245 croak ("offset outside of scalar");
1246
1247 if (!SvOK (length) || len + offset > svlen)
1248 len = svlen - offset;
1249
1250 {
1251 dREQ;
1252
1253 req->type = ix;
1254 req->sv2 = SvREFCNT_inc (data);
1255 req->ptr2 = (char *)svptr + offset;
1256 req->size = len;
1257 req->int1 = flags;
1258
1259 REQ_SEND;
1260 }
1261}
1262
1263void
1264aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1265 PPCODE:
1266{
1267 STRLEN svlen;
1268 char *svptr = SvPVbyte (data, svlen);
1269 UV len = SvUV (length);
1270
1271 if (offset < 0)
1272 offset += svlen;
1273
1274 if (offset < 0 || offset > svlen)
1275 croak ("offset outside of scalar");
1276
1277 if (!SvOK (length) || len + offset > svlen)
1278 len = svlen - offset;
1279
1280 {
1281 dREQ;
1282
1283 req->type = EIO_MLOCK;
1284 req->sv2 = SvREFCNT_inc (data);
1285 req->ptr2 = (char *)svptr + offset;
1286 req->size = len;
1287
1288 REQ_SEND;
1289 }
1290}
1291
1292void
1293aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1294 PPCODE:
1295{
1296 dREQ;
1297
1298 req->type = EIO_MLOCKALL;
1299 req->int1 = flags;
1300
1301 REQ_SEND;
1302}
1303
1304void
1305aio_busy (double delay, SV *callback=&PL_sv_undef)
1306 PPCODE:
1307{
1359 dREQ; 1308 dREQ;
1360 1309
1310 req->type = EIO_BUSY;
1311 req->nv1 = delay < 0. ? 0. : delay;
1312
1313 REQ_SEND;
1314}
1315
1316void
1317aio_group (SV *callback=&PL_sv_undef)
1318 PPCODE:
1319{
1320 dREQ;
1321
1361 req->type = REQ_GROUP; 1322 req->type = EIO_GROUP;
1323
1362 req_send (req); 1324 req_submit (req);
1363
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1325 XPUSHs (req_sv (req, aio_grp_stash));
1365} 1326}
1366 1327
1367void 1328void
1368aio_nop (callback=&PL_sv_undef) 1329aio_nop (SV *callback=&PL_sv_undef)
1369 SV * callback 1330 ALIAS:
1331 aio_nop = EIO_NOP
1332 aio_sync = EIO_SYNC
1370 PPCODE: 1333 PPCODE:
1371{ 1334{
1372 dREQ; 1335 dREQ;
1373 1336
1374 req->type = REQ_NOP; 1337 req->type = ix;
1375 1338
1376 REQ_SEND; 1339 REQ_SEND;
1377} 1340}
1378 1341
1379void 1342int
1380aioreq_pri (int pri = DEFAULT_PRI) 1343aioreq_pri (int pri = 0)
1381 CODE: 1344 CODE:
1345 RETVAL = next_pri;
1346 if (items > 0)
1347 {
1382 if (pri < PRI_MIN) pri = PRI_MIN; 1348 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1383 if (pri > PRI_MAX) pri = PRI_MAX; 1349 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1384 next_pri = pri + PRI_BIAS; 1350 next_pri = pri;
1351 }
1352 OUTPUT:
1353 RETVAL
1385 1354
1386void 1355void
1387aioreq_nice (int nice = 0) 1356aioreq_nice (int nice = 0)
1388 CODE: 1357 CODE:
1389 nice = next_pri - nice; 1358 nice = next_pri - nice;
1390 if (nice < PRI_MIN) nice = PRI_MIN; 1359 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX; 1360 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1392 next_pri = nice + PRI_BIAS; 1361 next_pri = nice;
1393 1362
1394void 1363void
1395flush () 1364flush ()
1365 CODE:
1366 while (eio_nreqs ())
1367 {
1368 poll_wait ();
1369 poll_cb ();
1370 }
1371
1372int
1373poll ()
1374 CODE:
1375 poll_wait ();
1376 RETVAL = poll_cb ();
1377 OUTPUT:
1378 RETVAL
1379
1380int
1381poll_fileno ()
1382 CODE:
1383 RETVAL = s_epipe_fd (&respipe);
1384 OUTPUT:
1385 RETVAL
1386
1387int
1388poll_cb (...)
1396 PROTOTYPE: 1389 PROTOTYPE:
1397 CODE: 1390 CODE:
1398 while (nreqs)
1399 {
1400 poll_wait ();
1401 poll_cb (0); 1391 RETVAL = poll_cb ();
1402 }
1403
1404void
1405poll()
1406 PROTOTYPE:
1407 CODE:
1408 if (nreqs)
1409 {
1410 poll_wait ();
1411 poll_cb (0);
1412 }
1413
1414int
1415poll_fileno()
1416 PROTOTYPE:
1417 CODE:
1418 RETVAL = respipe [0];
1419 OUTPUT: 1392 OUTPUT:
1420 RETVAL 1393 RETVAL
1421 1394
1395void
1396poll_wait ()
1397 CODE:
1398 poll_wait ();
1399
1422int 1400int
1423poll_cb(...) 1401nreqs ()
1424 PROTOTYPE:
1425 CODE: 1402 CODE:
1426 RETVAL = poll_cb (0); 1403 RETVAL = eio_nreqs ();
1427 OUTPUT: 1404 OUTPUT:
1428 RETVAL 1405 RETVAL
1429 1406
1430int 1407int
1431poll_some(int max = 0) 1408nready ()
1432 PROTOTYPE: $
1433 CODE: 1409 CODE:
1434 RETVAL = poll_cb (max); 1410 RETVAL = eio_nready ();
1435 OUTPUT: 1411 OUTPUT:
1436 RETVAL 1412 RETVAL
1437 1413
1438void 1414int
1439poll_wait() 1415npending ()
1440 PROTOTYPE:
1441 CODE: 1416 CODE:
1442 if (nreqs) 1417 RETVAL = eio_npending ();
1443 poll_wait ();
1444
1445int
1446nreqs()
1447 PROTOTYPE:
1448 CODE:
1449 RETVAL = nreqs;
1450 OUTPUT: 1418 OUTPUT:
1451 RETVAL 1419 RETVAL
1452 1420
1421int
1422nthreads ()
1423 CODE:
1424 RETVAL = eio_nthreads ();
1425 OUTPUT:
1426 RETVAL
1427
1428int
1429fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1430 CODE:
1431 RETVAL = posix_fadvise (fh, offset, length, advice);
1432 OUTPUT:
1433 RETVAL
1434
1435ssize_t
1436sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1437 CODE:
1438 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1439 OUTPUT:
1440 RETVAL
1441
1442void
1443mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1444 PPCODE:
1445 sv_unmagic (scalar, MMAP_MAGIC);
1446{
1447 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1448 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1449 if (addr == (void *)-1)
1450 XSRETURN_NO;
1451
1452 sv_force_normal (scalar);
1453
1454 /* we store the length in mg_obj, as namlen is I32 :/ */
1455 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1456 ->mg_obj = (SV *)length;
1457
1458 SvUPGRADE (scalar, SVt_PV); /* nop... */
1459
1460 if (!(prot & PROT_WRITE))
1461 SvREADONLY_on (scalar);
1462
1463 if (SvLEN (scalar))
1464 Safefree (SvPVX (scalar));
1465
1466 SvPVX (scalar) = (char *)addr;
1467 SvCUR_set (scalar, length);
1468 SvLEN_set (scalar, 0);
1469 SvPOK_only (scalar);
1470
1471 XSRETURN_YES;
1472}
1473
1474void
1475munmap (SV *scalar)
1476 CODE:
1477 sv_unmagic (scalar, MMAP_MAGIC);
1478
1479int
1480madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1481 ALIAS:
1482 mprotect = 1
1483 CODE:
1484{
1485 STRLEN svlen;
1486 void *addr = SvPVbyte (scalar, svlen);
1487 size_t len = SvUV (length);
1488
1489 if (offset < 0)
1490 offset += svlen;
1491
1492 if (offset < 0 || offset > svlen)
1493 croak ("offset outside of scalar");
1494
1495 if (!SvOK (length) || len + offset > svlen)
1496 len = svlen - offset;
1497
1498 addr = (void *)(((intptr_t)addr) + offset);
1499 eio_page_align (&addr, &len);
1500
1501 switch (ix)
1502 {
1503 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1504 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1505 }
1506}
1507 OUTPUT:
1508 RETVAL
1509
1510int
1511munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1512 CODE:
1513{
1514 STRLEN svlen;
1515 void *addr = SvPVbyte (scalar, svlen);
1516 size_t len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 addr = (void *)(((intptr_t)addr) + offset);
1528 eio_page_align (&addr, &len);
1529#if _POSIX_MEMLOCK
1530 RETVAL = munlock (addr, len);
1531#else
1532 RETVAL = ((errno = ENOSYS), -1);
1533#endif
1534}
1535 OUTPUT:
1536 RETVAL
1537
1538int
1539munlockall ()
1540 CODE:
1541#if _POSIX_MEMLOCK
1542 munlockall ();
1543#else
1544 RETVAL = -1;
1545 errno = ENOSYS;
1546#endif
1547 OUTPUT:
1548 RETVAL
1549
1550void _on_next_submit (SV *cb)
1551 CODE:
1552 SvREFCNT_dec (on_next_submit);
1553 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1554
1453PROTOTYPES: DISABLE 1555PROTOTYPES: DISABLE
1454 1556
1455MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1557MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456 1558
1457void 1559void
1458cancel (aio_req_ornot req) 1560cancel (aio_req_ornot req)
1459 CODE: 1561 CODE:
1460 req_cancel (req); 1562 eio_cancel (req);
1461 1563
1462void 1564void
1463cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1565cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1464 CODE: 1566 PPCODE:
1567{
1568 if (GIMME_V != G_VOID)
1569 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1570
1571 if (items > 1)
1572 {
1573 SV *cb_cv =get_cb (callback);
1574
1465 SvREFCNT_dec (req->callback); 1575 SvREFCNT_dec (req->callback);
1466 req->callback = newSVsv (callback); 1576 req->callback = SvREFCNT_inc (cb_cv);
1577 }
1578}
1467 1579
1468MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1580MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1469 1581
1470void 1582void
1471add (aio_req grp, ...) 1583add (aio_req grp, ...)
1472 PPCODE: 1584 PPCODE:
1473{ 1585{
1474 int i; 1586 int i;
1475 aio_req req;
1476 1587
1477 if (grp->fd == 2) 1588 if (grp->int1 == 2)
1478 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1589 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1479 1590
1480 for (i = 1; i < items; ++i ) 1591 for (i = 1; i < items; ++i )
1481 { 1592 {
1593 aio_req req;
1594
1482 if (GIMME_V != G_VOID) 1595 if (GIMME_V != G_VOID)
1483 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1596 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1484 1597
1485 req = SvAIO_REQ (ST (i)); 1598 req = SvAIO_REQ (ST (i));
1486 1599
1487 if (req) 1600 if (req)
1488 { 1601 eio_grp_add (grp, req);
1489 ++grp->length;
1490 req->grp = grp;
1491
1492 req->grp_prev = 0;
1493 req->grp_next = grp->grp_first;
1494
1495 if (grp->grp_first)
1496 grp->grp_first->grp_prev = req;
1497
1498 grp->grp_first = req;
1499 }
1500 } 1602 }
1501} 1603}
1502 1604
1503void 1605void
1504cancel_subs (aio_req_ornot req) 1606cancel_subs (aio_req_ornot req)
1508void 1610void
1509result (aio_req grp, ...) 1611result (aio_req grp, ...)
1510 CODE: 1612 CODE:
1511{ 1613{
1512 int i; 1614 int i;
1615 AV *av;
1616
1617 grp->errorno = errno;
1618
1513 AV *av = newAV (); 1619 av = newAV ();
1620 av_extend (av, items - 1);
1514 1621
1515 for (i = 1; i < items; ++i ) 1622 for (i = 1; i < items; ++i )
1516 av_push (av, newSVsv (ST (i))); 1623 av_push (av, newSVsv (ST (i)));
1517 1624
1518 SvREFCNT_dec (grp->data); 1625 SvREFCNT_dec (grp->sv1);
1519 grp->data = (SV *)av; 1626 grp->sv1 = (SV *)av;
1520} 1627}
1628
1629void
1630errno (aio_req grp, int errorno = errno)
1631 CODE:
1632 grp->errorno = errorno;
1521 1633
1522void 1634void
1523limit (aio_req grp, int limit) 1635limit (aio_req grp, int limit)
1524 CODE: 1636 CODE:
1525 grp->fd2 = limit; 1637 eio_grp_limit (grp, limit);
1526 aio_grp_feed (grp);
1527 1638
1528void 1639void
1529feed (aio_req grp, SV *callback=&PL_sv_undef) 1640feed (aio_req grp, SV *callback=&PL_sv_undef)
1530 CODE: 1641 CODE:
1531{ 1642{
1532 SvREFCNT_dec (grp->fh2); 1643 SvREFCNT_dec (grp->sv2);
1533 grp->fh2 = newSVsv (callback); 1644 grp->sv2 = newSVsv (callback);
1645 grp->feed = aio_grp_feed;
1534 1646
1535 if (grp->fd2 <= 0) 1647 if (grp->int2 <= 0)
1536 grp->fd2 = 2; 1648 grp->int2 = 2;
1537 1649
1538 aio_grp_feed (grp); 1650 eio_grp_limit (grp, grp->int2);
1539} 1651}
1540 1652

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