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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.166 by root, Sun May 9 20:43:28 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#ifndef ST_NODEV
146# define ST_NODEV 0
147#endif
148#ifndef ST_NOEXEC
149# define ST_NOEXEC 0
150#endif
151#ifndef ST_SYNCHRONOUS
152# define ST_SYNCHRONOUS 0
153#endif
154#ifndef ST_MANDLOCK
155# define ST_MANDLOCK 0
156#endif
157#ifndef ST_WRITE
158# define ST_WRITE 0
159#endif
160#ifndef ST_APPEND
161# define ST_APPEND 0
162#endif
163#ifndef ST_IMMUTABLE
164# define ST_IMMUTABLE 0
165#endif
166#ifndef ST_NOATIME
167# define ST_NOATIME 0
168#endif
169#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0
171#endif
172#ifndef ST_RELATIME
173# define ST_RELATIME 0
174#endif
175
176#ifndef MCL_CURRENT
177# define MCL_CURRENT 0
178#endif
179#ifndef MCL_FUTURE
180# define MCL_FUTURE 0
181#endif
182
183#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON
43# else 186# else
44# error sendfile support requested but not available 187# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 188# endif
46#endif 189#endif
47 190#ifndef MAP_HUGETLB
48/* used for struct dirent, AIX doesn't provide it */ 191# define MAP_HUGETLB 0
49#ifndef NAME_MAX
50# define NAME_MAX 4096
51#endif 192#endif
52 193#ifndef MAP_LOCKED
53#ifndef PTHREAD_STACK_MIN 194# define MAP_LOCKED 0
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 195#endif
57 196#ifndef MAP_NORESERVE
58#if __ia64 197# 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 198#endif
199#ifndef MAP_POPULATE
200# define MAP_POPULATE 0
201#endif
202#ifndef MAP_NONBLOCK
203# define MAP_NONBLOCK 0
204#endif
65 205
66/* buffer size for various temporary buffers */ 206#ifndef PAGESIZE
67#define AIO_BUFSIZE 65536 207# define PAGESIZE sysconf (_SC_PAGESIZE)
208#endif
68 209
69#define dBUF \ 210static int req_invoke (eio_req *req);
70 char *aio_buf; \ 211#define EIO_FINISH(req) req_invoke (req)
71 LOCK (wrklock); \ 212static void req_destroy (eio_req *grp);
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 213#define EIO_DESTROY(req) req_destroy (req)
73 UNLOCK (wrklock); \
74 if (!aio_buf) \
75 return -1;
76 214
77enum { 215enum {
78 REQ_QUIT, 216 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}; 217};
90 218
91#define AIO_REQ_KLASS "IO::AIO::REQ" 219#include "libeio/eio.c"
92#define AIO_GRP_KLASS "IO::AIO::GRP"
93 220
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; 221typedef eio_req *aio_req;
124typedef aio_cb *aio_req_ornot; 222typedef eio_req *aio_req_ornot;
125 223
126enum { 224static SV *on_next_submit;
127 PRI_MIN = -4, 225static int next_pri = EIO_PRI_DEFAULT;
128 PRI_MAX = 4, 226static int max_outstanding;
129 227
130 DEFAULT_PRI = 0, 228static s_epipe respipe;
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134 229
135static int next_pri = DEFAULT_PRI + PRI_BIAS;
136
137static unsigned int started, wanted;
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146#endif
147
148#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150
151/* worker threads management */
152static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
153
154typedef struct worker {
155 /* locked by wrklock */
156 struct worker *prev, *next;
157
158 pthread_t tid;
159
160 /* locked by reslock, reqlock or wrklock */
161 aio_req req; /* currently processed request */
162 void *dbuf;
163 DIR *dirp;
164} worker;
165
166static worker wrk_first = { &wrk_first, &wrk_first, 0 };
167
168static void worker_clear (worker *wrk)
169{
170 if (wrk->dirp)
171 {
172 closedir (wrk->dirp);
173 wrk->dirp = 0;
174 }
175
176 if (wrk->dbuf)
177 {
178 free (wrk->dbuf);
179 wrk->dbuf = 0;
180 }
181}
182
183static void worker_free (worker *wrk)
184{
185 wrk->next->prev = wrk->prev;
186 wrk->prev->next = wrk->next;
187
188 free (wrk);
189}
190
191static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
194
195/*
196 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation.
199 */
200typedef struct {
201 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
202 int size;
203} reqq;
204
205static reqq req_queue;
206static reqq res_queue;
207
208int reqq_push (reqq *q, aio_req req)
209{
210 int pri = req->pri;
211 req->next = 0;
212
213 if (q->qe[pri])
214 {
215 q->qe[pri]->next = req;
216 q->qe[pri] = req;
217 }
218 else
219 q->qe[pri] = q->qs[pri] = req;
220
221 return q->size++;
222}
223
224aio_req reqq_shift (reqq *q)
225{
226 int pri;
227
228 if (!q->size)
229 return 0;
230
231 --q->size;
232
233 for (pri = NUM_PRI; pri--; )
234 {
235 aio_req req = q->qs[pri];
236
237 if (req)
238 {
239 if (!(q->qs[pri] = req->next))
240 q->qe[pri] = 0;
241
242 return req;
243 }
244 }
245
246 abort ();
247}
248
249static int poll_cb (int max);
250static void req_invoke (aio_req req);
251static void req_free (aio_req req); 230static void req_destroy (aio_req req);
252static void req_cancel (aio_req req); 231static void req_cancel (aio_req req);
253 232
233static void want_poll (void)
234{
235 /* write a dummy byte to the pipe so fh becomes ready */
236 s_epipe_signal (&respipe);
237}
238
239static void done_poll (void)
240{
241 /* read any signals sent by the worker threads */
242 s_epipe_drain (&respipe);
243}
244
254/* must be called at most once */ 245/* must be called at most once */
255static SV *req_sv (aio_req req, const char *klass) 246static SV *req_sv (aio_req req, HV *stash)
256{ 247{
257 if (!req->self) 248 if (!req->self)
258 { 249 {
259 req->self = (SV *)newHV (); 250 req->self = (SV *)newHV ();
260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 251 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
261 } 252 }
262 253
263 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 254 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
264} 255}
265 256
266static aio_req SvAIO_REQ (SV *sv) 257static aio_req SvAIO_REQ (SV *sv)
267{ 258{
268 MAGIC *mg; 259 MAGIC *mg;
269 260
270 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 261 if (!SvROK (sv)
262 || (SvSTASH (SvRV (sv)) != aio_grp_stash
263 && SvSTASH (SvRV (sv)) != aio_req_stash
264 && !sv_derived_from (sv, "IO::AIO::REQ")))
271 croak ("object of class " AIO_REQ_KLASS " expected"); 265 croak ("object of class IO::AIO::REQ expected");
272 266
273 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 267 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
274 268
275 return mg ? (aio_req)mg->mg_ptr : 0; 269 return mg ? (aio_req)mg->mg_ptr : 0;
276} 270}
277 271
278static void aio_grp_feed (aio_req grp) 272static void aio_grp_feed (aio_req grp)
279{ 273{
280 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 274 if (grp->sv2 && SvOK (grp->sv2))
281 { 275 {
282 int old_len = grp->length;
283
284 if (grp->fh2 && SvOK (grp->fh2))
285 {
286 dSP; 276 dSP;
287 277
288 ENTER; 278 ENTER;
289 SAVETMPS; 279 SAVETMPS;
290 PUSHMARK (SP); 280 PUSHMARK (SP);
291 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 281 XPUSHs (req_sv (grp, aio_grp_stash));
292 PUTBACK; 282 PUTBACK;
293 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 283 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294 SPAGAIN; 284 SPAGAIN;
295 FREETMPS; 285 FREETMPS;
296 LEAVE; 286 LEAVE;
297 }
298
299 /* stop if no progress has been made */
300 if (old_len == grp->length)
301 {
302 SvREFCNT_dec (grp->fh2);
303 grp->fh2 = 0;
304 break;
305 }
306 } 287 }
307} 288}
308 289
309static void aio_grp_dec (aio_req grp) 290static void req_submit (eio_req *req)
310{ 291{
311 --grp->length; 292 eio_submit (req);
312 293
313 /* call feeder, if applicable */ 294 if (expect_false (on_next_submit))
314 aio_grp_feed (grp);
315
316 /* finish, if done */
317 if (!grp->length && grp->fd)
318 { 295 {
319 req_invoke (grp); 296 dSP;
320 req_free (grp); 297 SV *cb = sv_2mortal (on_next_submit);
298
299 on_next_submit = 0;
300
301 PUSHMARK (SP);
302 PUTBACK;
303 call_sv (cb, G_DISCARD | G_EVAL);
321 } 304 }
322} 305}
323 306
324static void poll_wait () 307static int req_invoke (eio_req *req)
325{ 308{
326 fd_set rfd; 309 if (req->flags & FLAG_SV2_RO_OFF)
310 SvREADONLY_off (req->sv2);
327 311
328 while (nreqs) 312 if (!EIO_CANCELLED (req) && req->callback)
329 { 313 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req)
350{
351 dSP; 314 dSP;
352 315 static SV *sv_result_cache; /* caches the result integer SV */
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 316 SV *sv_result;
354 {
355 errno = req->errorno;
356 317
357 ENTER; 318 ENTER;
358 SAVETMPS; 319 SAVETMPS;
359 PUSHMARK (SP); 320 PUSHMARK (SP);
360 EXTEND (SP, 1); 321 EXTEND (SP, 1);
361 322
323 /* do not recreate the result IV from scratch each time */
324 if (expect_true (sv_result_cache))
325 {
326 sv_result = sv_result_cache; sv_result_cache = 0;
327 SvIV_set (sv_result, req->result);
328 }
329 else
330 {
331 sv_result = newSViv (req->result);
332 SvREADONLY_on (sv_result);
333 }
334
362 switch (req->type) 335 switch (req->type)
363 { 336 {
364 case REQ_READDIR: 337 case EIO_READDIR:
365 { 338 {
366 SV *rv = &PL_sv_undef; 339 SV *rv = &PL_sv_undef;
367 340
368 if (req->result >= 0) 341 if (req->result >= 0)
369 { 342 {
370 int i; 343 int i;
371 char *buf = req->data2ptr; 344 char *names = (char *)req->ptr2;
345 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
372 AV *av = newAV (); 346 AV *av = newAV ();
373 347
374 av_extend (av, req->result - 1); 348 av_extend (av, req->result - 1);
375 349
376 for (i = 0; i < req->result; ++i) 350 for (i = 0; i < req->result; ++i)
377 { 351 {
378 SV *sv = newSVpv (buf, 0); 352 if (req->int1 & EIO_READDIR_DENTS)
353 {
354 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
379 355
356 if (req->int1 & EIO_READDIR_CUSTOM2)
357 {
358 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
359 AV *avent = newAV ();
360
361 av_extend (avent, 2);
362
363 if (!sv_type [ent->type])
364 {
365 sv_type [ent->type] = newSViv (ent->type);
366 SvREADONLY_on (sv_type [ent->type]);
367 }
368
369 av_store (avent, 0, namesv);
370 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
371 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
372
373 av_store (av, i, newRV_noinc ((SV *)avent));
374 }
375 else
380 av_store (av, i, sv); 376 av_store (av, i, namesv);
377
378 ++ent;
379 }
380 else
381 {
382 SV *name = newSVpv (names, 0);
383 av_store (av, i, name);
381 buf += SvCUR (sv) + 1; 384 names += SvCUR (name) + 1;
385 }
382 } 386 }
383 387
384 rv = sv_2mortal (newRV_noinc ((SV *)av)); 388 rv = sv_2mortal (newRV_noinc ((SV *)av));
385 } 389 }
386 390
387 PUSHs (rv); 391 PUSHs (rv);
392
393 if (req->int1 & EIO_READDIR_CUSTOM1)
394 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
388 } 395 }
389 break; 396 break;
390 397
391 case REQ_OPEN: 398 case EIO_OPEN:
392 { 399 {
393 /* convert fd to fh */ 400 /* convert fd to fh */
394 SV *fh; 401 SV *fh = &PL_sv_undef;
395 402
396 PUSHs (sv_2mortal (newSViv (req->result))); 403 if (req->result >= 0)
397 PUTBACK; 404 {
398 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 405 GV *gv = (GV *)sv_newmortal ();
399 SPAGAIN; 406 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
407 char sym [64];
408 int symlen;
409
410 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
411 gv_init (gv, aio_stash, sym, symlen, 0);
400 412
401 fh = SvREFCNT_inc (POPs); 413 symlen = snprintf (
414 sym,
415 sizeof (sym),
416 "%s&=%d",
417 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
418 (int)req->result
419 );
402 420
421 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
422 fh = (SV *)gv;
423 }
424
403 PUSHMARK (SP); 425 PUSHs (fh);
404 XPUSHs (sv_2mortal (fh));
405 } 426 }
406 break; 427 break;
407 428
429 case EIO_STATVFS:
430 case EIO_FSTATVFS:
431 {
432 SV *rv = &PL_sv_undef;
433
434 if (req->result >= 0)
435 {
436 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437 HV *hv = newHV ();
438
439 rv = sv_2mortal (newRV_noinc ((SV *)hv));
440
441 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
442 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
443 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
444 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
445 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
446 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
447 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
448 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
450 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452 }
453
454 PUSHs (rv);
455 }
456
457 break;
458
408 case REQ_GROUP: 459 case EIO_GROUP:
409 req->fd = 2; /* mark group as finished */ 460 req->int1 = 2; /* mark group as finished */
410 461
411 if (req->data) 462 if (req->sv1)
412 { 463 {
413 int i; 464 int i;
414 AV *av = (AV *)req->data; 465 AV *av = (AV *)req->sv1;
415 466
416 EXTEND (SP, AvFILL (av) + 1); 467 EXTEND (SP, AvFILL (av) + 1);
417 for (i = 0; i <= AvFILL (av); ++i) 468 for (i = 0; i <= AvFILL (av); ++i)
418 PUSHs (*av_fetch (av, i, 0)); 469 PUSHs (*av_fetch (av, i, 0));
419 } 470 }
420 break; 471 break;
421 472
422 case REQ_NOP: 473 case EIO_NOP:
423 case REQ_BUSY: 474 case EIO_BUSY:
424 break; 475 break;
425 476
477 case EIO_READLINK:
478 if (req->result > 0)
479 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480 break;
481
482 case EIO_STAT:
483 case EIO_LSTAT:
484 case EIO_FSTAT:
485 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
486 PL_laststatval = req->result;
487 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
488 PUSHs (sv_result);
489 break;
490
491 case EIO_READ:
492 {
493 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
494 *SvEND (req->sv2) = 0;
495 SvPOK_only (req->sv2);
496 SvSETMAGIC (req->sv2);
497 PUSHs (sv_result);
498 }
499 break;
500
501 case EIO_DUP2:
502 if (req->result > 0)
503 SvIV_set (sv_result, 0);
504 /* FALLTHROUGH */
505
426 default: 506 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 507 PUSHs (sv_result);
428 break; 508 break;
429 } 509 }
430 510
511 errno = req->errorno;
431 512
432 PUTBACK; 513 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 514 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
434 SPAGAIN; 515 SPAGAIN;
516
517 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
518 SvREFCNT_dec (sv_result);
519 else
520 sv_result_cache = sv_result;
435 521
436 FREETMPS; 522 FREETMPS;
437 LEAVE; 523 LEAVE;
524
525 PUTBACK;
438 } 526 }
439 527
440 if (req->grp) 528 return !!SvTRUE (ERRSV);
441 {
442 aio_req grp = req->grp;
443
444 /* unlink request */
445 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
446 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
447
448 if (grp->grp_first == req)
449 grp->grp_first = req->grp_next;
450
451 aio_grp_dec (grp);
452 }
453
454 if (SvTRUE (ERRSV))
455 {
456 req_free (req);
457 croak (0);
458 }
459} 529}
460 530
461static void req_free (aio_req req) 531static void req_destroy (aio_req req)
462{ 532{
463 if (req->self) 533 if (req->self)
464 { 534 {
465 sv_unmagic (req->self, PERL_MAGIC_ext); 535 sv_unmagic (req->self, PERL_MAGIC_ext);
466 SvREFCNT_dec (req->self); 536 SvREFCNT_dec (req->self);
467 } 537 }
468 538
469 SvREFCNT_dec (req->data);
470 SvREFCNT_dec (req->fh); 539 SvREFCNT_dec (req->sv1);
471 SvREFCNT_dec (req->fh2); 540 SvREFCNT_dec (req->sv2);
472 SvREFCNT_dec (req->callback); 541 SvREFCNT_dec (req->callback);
473 Safefree (req->statdata);
474
475 if (req->type == REQ_READDIR)
476 free (req->data2ptr);
477 542
478 Safefree (req); 543 Safefree (req);
479} 544}
480 545
481static void req_cancel_subs (aio_req grp) 546static void req_cancel_subs (aio_req grp)
482{ 547{
483 aio_req sub; 548 aio_req sub;
484 549
485 if (grp->type != REQ_GROUP) 550 if (grp->type != EIO_GROUP)
486 return; 551 return;
487 552
488 SvREFCNT_dec (grp->fh2); 553 SvREFCNT_dec (grp->sv2);
489 grp->fh2 = 0; 554 grp->sv2 = 0;
490 555
491 for (sub = grp->grp_first; sub; sub = sub->grp_next) 556 eio_grp_cancel (grp);
492 req_cancel (sub);
493} 557}
494 558
495static void req_cancel (aio_req req) 559static void
560create_respipe (void)
496{ 561{
497 req->flags |= FLAG_CANCELLED; 562 if (s_epipe_renew (&respipe))
498 563 croak ("IO::AIO: unable to initialize result pipe");
499 req_cancel_subs (req);
500} 564}
501 565
566static void poll_wait (void)
567{
568 while (eio_nreqs ())
569 {
570 int size;
571
572 X_LOCK (reslock);
573 size = res_queue.size;
574 X_UNLOCK (reslock);
575
576 if (size)
577 return;
578
579 etp_maybe_start_thread ();
580
581 s_epipe_wait (&respipe);
582 }
583}
584
502static int poll_cb (int max) 585static int poll_cb (void)
503{ 586{
504 dSP;
505 int count = 0;
506 int do_croak = 0;
507 aio_req req;
508
509 for (;;) 587 for (;;)
510 { 588 {
511 while (max <= 0 || count < max) 589 int res = eio_poll ();
512 {
513 LOCK (reslock);
514 req = reqq_shift (&res_queue);
515 590
516 if (req) 591 if (res > 0)
517 {
518 if (!res_queue.size)
519 {
520 /* read any signals sent by the worker threads */
521 char buf [32];
522 while (read (respipe [0], buf, 32) == 32)
523 ;
524 }
525 }
526
527 UNLOCK (reslock);
528
529 if (!req)
530 break;
531
532 --nreqs;
533
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length)
537 {
538 req->fd = 1; /* mark request as delayed */
539 continue;
540 }
541 else
542 {
543 if (req->type == REQ_READ)
544 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547 SvREADONLY_off (req->data);
548
549 if (req->statdata)
550 {
551 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552 PL_laststatval = req->result;
553 PL_statcache = *(req->statdata);
554 }
555
556 req_invoke (req);
557
558 count++;
559 }
560
561 req_free (req);
562 }
563
564 if (nreqs <= max_outstanding)
565 break; 592 croak (0);
593
594 if (!max_outstanding || max_outstanding > eio_nreqs ())
595 return res;
566 596
567 poll_wait (); 597 poll_wait ();
568
569 max = 0;
570 } 598 }
571
572 return count;
573} 599}
574 600
575static void *aio_proc(void *arg);
576
577static void start_thread (void) 601static void atfork_child (void)
578{ 602{
579 sigset_t fullsigset, oldsigset; 603 create_respipe ();
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void req_send (aio_req req)
612{
613 while (started < wanted && nreqs >= started)
614 start_thread ();
615
616 ++nreqs;
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 {
651 end_thread ();
652 cur--;
653 }
654
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660}
661
662static void create_pipe ()
663{
664 if (pipe (respipe))
665 croak ("unable to initialize result pipe");
666
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668 croak ("cannot set result pipe to nonblocking mode");
669
670 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671 croak ("cannot set result pipe to nonblocking mode");
672} 604}
673 605
674/*****************************************************************************/ 606/*****************************************************************************/
675/* work around various missing functions */
676 607
677#if !HAVE_PREADWRITE 608#if !_POSIX_MAPPED_FILES
678# define pread aio_pread 609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
679# define pwrite aio_pwrite 610# define munmap(addr,length) (errno = ENOSYS, -1)
680
681/*
682 * make our pread/pwrite safe against themselves, but not against
683 * normal read/write by using a mutex. slows down execution a lot,
684 * but that's your problem, not mine.
685 */
686static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
687
688static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
689{
690 ssize_t res;
691 off_t ooffset;
692
693 LOCK (preadwritelock);
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = read (fd, buf, count);
697 lseek (fd, ooffset, SEEK_SET);
698 UNLOCK (preadwritelock);
699
700 return res;
701}
702
703static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
704{
705 ssize_t res;
706 off_t ooffset;
707
708 LOCK (preadwritelock);
709 ooffset = lseek (fd, 0, SEEK_CUR);
710 lseek (fd, offset, SEEK_SET);
711 res = write (fd, buf, count);
712 lseek (fd, offset, SEEK_SET);
713 UNLOCK (preadwritelock);
714
715 return res;
716}
717#endif
718
719#if !HAVE_FDATASYNC
720# define fdatasync fsync
721#endif
722
723#if !HAVE_READAHEAD
724# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725
726static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
727{
728 dBUF;
729
730 while (count > 0)
731 {
732 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
733
734 pread (fd, aio_buf, len, offset);
735 offset += len;
736 count -= len;
737 }
738
739 errno = 0;
740}
741
742#endif
743
744#if !HAVE_READDIR_R
745# define readdir_r aio_readdir_r
746
747static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
748
749static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
750{
751 struct dirent *e;
752 int errorno;
753
754 LOCK (readdirlock);
755
756 e = readdir (dirp);
757 errorno = errno;
758
759 if (e)
760 {
761 *res = ent;
762 strcpy (ent->d_name, e->d_name);
763 }
764 else
765 *res = 0;
766
767 UNLOCK (readdirlock);
768
769 errno = errorno;
770 return e ? 0 : -1;
771}
772#endif
773
774/* sendfile always needs emulation */
775static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
776{
777 ssize_t res;
778
779 if (!count)
780 return 0;
781
782#if HAVE_SENDFILE
783# if __linux
784 res = sendfile (ofd, ifd, &offset, count);
785
786# elif __freebsd
787 /*
788 * Of course, the freebsd sendfile is a dire hack with no thoughts
789 * wasted on making it similar to other I/O functions.
790 */
791 {
792 off_t sbytes;
793 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
794
795 if (res < 0 && sbytes)
796 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
797 res = sbytes;
798 }
799
800# elif __hpux
801 res = sendfile (ofd, ifd, offset, count, 0, 0);
802
803# elif __solaris
804 {
805 struct sendfilevec vec;
806 size_t sbytes;
807
808 vec.sfv_fd = ifd;
809 vec.sfv_flag = 0;
810 vec.sfv_off = offset;
811 vec.sfv_len = count;
812
813 res = sendfilev (ofd, &vec, 1, &sbytes);
814
815 if (res < 0 && sbytes)
816 res = sbytes;
817 }
818
819# endif 611#endif
820#else
821 res = -1;
822 errno = ENOSYS;
823#endif
824 612
825 if (res < 0 613#define MMAP_MAGIC PERL_MAGIC_ext
826 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
827#if __solaris
828 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
829#endif
830 )
831 )
832 {
833 /* emulate sendfile. this is a major pain in the ass */
834 dBUF;
835 614
836 res = 0; 615static int
616mmap_free (pTHX_ SV *sv, MAGIC *mg)
617{
618 int old_errno = errno;
619 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620 errno = old_errno;
837 621
838 while (count) 622 mg->mg_obj = 0; /* just in case */
839 {
840 ssize_t cnt;
841
842 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
843 623
844 if (cnt <= 0) 624 SvREADONLY_off (sv);
845 { 625 SvCUR_set (sv, 0);
846 if (cnt && !res) res = -1; 626 SvLEN_set (sv, 0);
847 break; 627 SvPVX (sv) = 0;
848 } 628 SvOK_off (sv);
849 629
850 cnt = write (ofd, aio_buf, cnt);
851
852 if (cnt <= 0)
853 {
854 if (cnt && !res) res = -1;
855 break;
856 }
857
858 offset += cnt;
859 res += cnt;
860 count -= cnt;
861 }
862 }
863
864 return res; 630 return 0;
865} 631}
866 632
867/* read a full directory */ 633static MGVTBL mmap_vtbl = {
868static void scandir_ (aio_req req, worker *self) 634 0, 0, 0, 0, mmap_free
869{ 635};
870 DIR *dirp;
871 union
872 {
873 struct dirent d;
874 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
875 } *u;
876 struct dirent *entp;
877 char *name, *names;
878 int memlen = 4096;
879 int memofs = 0;
880 int res = 0;
881 int errorno;
882
883 LOCK (wrklock);
884 self->dirp = dirp = opendir (req->dataptr);
885 self->dbuf = u = malloc (sizeof (*u));
886 req->data2ptr = names = malloc (memlen);
887 UNLOCK (wrklock);
888
889 if (dirp && u && names)
890 for (;;)
891 {
892 errno = 0;
893 readdir_r (dirp, &u->d, &entp);
894
895 if (!entp)
896 break;
897
898 name = entp->d_name;
899
900 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
901 {
902 int len = strlen (name) + 1;
903
904 res++;
905
906 while (memofs + len > memlen)
907 {
908 memlen *= 2;
909 LOCK (wrklock);
910 req->data2ptr = names = realloc (names, memlen);
911 UNLOCK (wrklock);
912
913 if (!names)
914 break;
915 }
916
917 memcpy (names + memofs, name, len);
918 memofs += len;
919 }
920 }
921
922 if (errno)
923 res = -1;
924
925 req->result = res;
926}
927 636
928/*****************************************************************************/ 637/*****************************************************************************/
929 638
930static void *aio_proc (void *thr_arg) 639static SV *
640get_cb (SV *cb_sv)
931{ 641{
932 aio_req req; 642 SvGETMAGIC (cb_sv);
933 int type; 643 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
934 worker *self = (worker *)thr_arg;
935
936 do
937 {
938 LOCK (reqlock);
939
940 for (;;)
941 {
942 self->req = req = reqq_shift (&req_queue);
943
944 if (req)
945 break;
946
947 pthread_cond_wait (&reqwait, &reqlock);
948 }
949
950 UNLOCK (reqlock);
951
952 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954
955 if (!(req->flags & FLAG_CANCELLED))
956 switch (type)
957 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
962 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
963
964 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
965 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
966 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
967
968 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
969 case REQ_CLOSE: req->result = close (req->fd); break;
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
975
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break;
979
980 case REQ_BUSY:
981 {
982 struct timeval tv;
983
984 tv.tv_sec = req->fd;
985 tv.tv_usec = req->fd2;
986
987 req->result = select (0, 0, 0, 0, &tv);
988 }
989
990 case REQ_GROUP:
991 case REQ_NOP:
992 case REQ_QUIT:
993 break;
994
995 default:
996 req->result = ENOSYS;
997 break;
998 }
999
1000 req->errorno = errno;
1001
1002 LOCK (reslock);
1003
1004 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1);
1007
1008 self->req = 0;
1009 worker_clear (self);
1010
1011 UNLOCK (reslock);
1012 }
1013 while (type != REQ_QUIT);
1014
1015 LOCK (wrklock);
1016 worker_free (self);
1017 UNLOCK (wrklock);
1018
1019 return 0;
1020}
1021
1022/*****************************************************************************/
1023
1024static void atfork_prepare (void)
1025{
1026 LOCK (wrklock);
1027 LOCK (reqlock);
1028 LOCK (reslock);
1029#if !HAVE_PREADWRITE
1030 LOCK (preadwritelock);
1031#endif
1032#if !HAVE_READDIR_R
1033 LOCK (readdirlock);
1034#endif
1035}
1036
1037static void atfork_parent (void)
1038{
1039#if !HAVE_READDIR_R
1040 UNLOCK (readdirlock);
1041#endif
1042#if !HAVE_PREADWRITE
1043 UNLOCK (preadwritelock);
1044#endif
1045 UNLOCK (reslock);
1046 UNLOCK (reqlock);
1047 UNLOCK (wrklock);
1048}
1049
1050static void atfork_child (void)
1051{
1052 aio_req prv;
1053
1054 while (prv = reqq_shift (&req_queue))
1055 req_free (prv);
1056
1057 while (prv = reqq_shift (&res_queue))
1058 req_free (prv);
1059
1060 while (wrk_first.next != &wrk_first)
1061 {
1062 worker *wrk = wrk_first.next;
1063
1064 if (wrk->req)
1065 req_free (wrk->req);
1066
1067 worker_clear (wrk);
1068 worker_free (wrk);
1069 }
1070
1071 started = 0;
1072 nreqs = 0;
1073
1074 close (respipe [0]);
1075 close (respipe [1]);
1076 create_pipe ();
1077
1078 atfork_parent ();
1079} 644}
1080 645
1081#define dREQ \ 646#define dREQ \
647 SV *cb_cv; \
1082 aio_req req; \ 648 aio_req req; \
1083 int req_pri = next_pri; \ 649 int req_pri = next_pri; \
1084 next_pri = DEFAULT_PRI + PRI_BIAS; \ 650 next_pri = EIO_PRI_DEFAULT; \
1085 \ 651 \
1086 if (SvOK (callback) && !SvROK (callback)) \ 652 cb_cv = get_cb (callback); \
1087 croak ("callback must be undef or of reference type"); \
1088 \ 653 \
1089 Newz (0, req, 1, aio_cb); \ 654 Newz (0, req, 1, eio_req); \
1090 if (!req) \ 655 if (!req) \
1091 croak ("out of memory during aio_req allocation"); \ 656 croak ("out of memory during eio_req allocation"); \
1092 \ 657 \
1093 req->callback = newSVsv (callback); \ 658 req->callback = SvREFCNT_inc (cb_cv); \
1094 req->pri = req_pri 659 req->pri = req_pri
1095 660
1096#define REQ_SEND \ 661#define REQ_SEND \
662 PUTBACK; \
1097 req_send (req); \ 663 req_submit (req); \
664 SPAGAIN; \
1098 \ 665 \
1099 if (GIMME_V != G_VOID) \ 666 if (GIMME_V != G_VOID) \
1100 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 667 XPUSHs (req_sv (req, aio_req_stash));
1101 668
1102MODULE = IO::AIO PACKAGE = IO::AIO 669MODULE = IO::AIO PACKAGE = IO::AIO
1103 670
1104PROTOTYPES: ENABLE 671PROTOTYPES: ENABLE
1105 672
1106BOOT: 673BOOT:
1107{ 674{
675 static const struct {
676 const char *name;
677 IV iv;
678 } *civ, const_iv[] = {
679# define const_niv(name, value) { # name, (IV) value },
680# define const_iv(name) { # name, (IV) name },
681# define const_eio(name) { # name, (IV) EIO_ ## name },
682 const_iv (EXDEV)
683 const_iv (ENOSYS)
684 const_iv (O_RDONLY)
685 const_iv (O_WRONLY)
686 const_iv (O_RDWR)
687 const_iv (O_CREAT)
688 const_iv (O_TRUNC)
689 const_iv (O_EXCL)
690 const_iv (O_APPEND)
691#ifndef _WIN32
692 const_iv (S_IFIFO)
693#endif
694 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
695 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
696 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
697 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
698 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
699 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
700
701 const_iv (ST_RDONLY)
702 const_iv (ST_NOSUID)
703 const_iv (ST_NODEV)
704 const_iv (ST_NOEXEC)
705 const_iv (ST_SYNCHRONOUS)
706 const_iv (ST_MANDLOCK)
707 const_iv (ST_WRITE)
708 const_iv (ST_APPEND)
709 const_iv (ST_IMMUTABLE)
710 const_iv (ST_NOATIME)
711 const_iv (ST_NODIRATIME)
712 const_iv (ST_RELATIME)
713
714 const_iv (PROT_EXEC)
715 const_iv (PROT_NONE)
716 const_iv (PROT_READ)
717 const_iv (PROT_WRITE)
718
719 /*const_iv (MAP_FIXED)*/
720 const_iv (MAP_PRIVATE)
721 const_iv (MAP_SHARED)
722 const_iv (MAP_ANONYMOUS)
723
724 /* linuxish */
725 const_iv (MAP_HUGETLB)
726 const_iv (MAP_LOCKED)
727 const_iv (MAP_NORESERVE)
728 const_iv (MAP_POPULATE)
729 const_iv (MAP_NONBLOCK)
730
731 const_iv (MCL_FUTURE)
732 const_iv (MCL_CURRENT)
733
734 const_eio (MS_ASYNC)
735 const_eio (MS_INVALIDATE)
736 const_eio (MS_SYNC)
737
738 const_eio (MT_MODIFY)
739
740 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
741 const_eio (SYNC_FILE_RANGE_WRITE)
742 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
743
744 const_eio (READDIR_DENTS)
745 const_eio (READDIR_DIRS_FIRST)
746 const_eio (READDIR_STAT_ORDER)
747 const_eio (READDIR_FOUND_UNKNOWN)
748
749 const_eio (DT_UNKNOWN)
750 const_eio (DT_FIFO)
751 const_eio (DT_CHR)
752 const_eio (DT_DIR)
753 const_eio (DT_BLK)
754 const_eio (DT_REG)
755 const_eio (DT_LNK)
756 const_eio (DT_SOCK)
757 const_eio (DT_WHT)
758 };
759
1108 HV *stash = gv_stashpv ("IO::AIO", 1); 760 aio_stash = gv_stashpv ("IO::AIO" , 1);
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 761 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 762 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1112 763
764 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
765 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
766
767 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
768
1113 create_pipe (); 769 create_respipe ();
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 770
771 if (eio_init (want_poll, done_poll) < 0)
772 croak ("IO::AIO: unable to initialise eio library");
773
774 /* atfork child called in fifo order, so before eio's handler */
775 X_THREAD_ATFORK (0, 0, atfork_child);
1115} 776}
777
778void
779max_poll_reqs (int nreqs)
780 PROTOTYPE: $
781 CODE:
782 eio_set_max_poll_reqs (nreqs);
783
784void
785max_poll_time (double nseconds)
786 PROTOTYPE: $
787 CODE:
788 eio_set_max_poll_time (nseconds);
1116 789
1117void 790void
1118min_parallel (int nthreads) 791min_parallel (int nthreads)
1119 PROTOTYPE: $ 792 PROTOTYPE: $
793 CODE:
794 eio_set_min_parallel (nthreads);
1120 795
1121void 796void
1122max_parallel (int nthreads) 797max_parallel (int nthreads)
1123 PROTOTYPE: $ 798 PROTOTYPE: $
799 CODE:
800 eio_set_max_parallel (nthreads);
1124 801
1125int 802void
803max_idle (int nthreads)
804 PROTOTYPE: $
805 CODE:
806 eio_set_max_idle (nthreads);
807
808void
1126max_outstanding (int maxreqs) 809max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 810 PROTOTYPE: $
1128 CODE: 811 CODE:
1129 RETVAL = max_outstanding;
1130 max_outstanding = maxreqs; 812 max_outstanding = maxreqs;
1131 OUTPUT:
1132 RETVAL
1133 813
1134void 814void
1135aio_open (pathname,flags,mode,callback=&PL_sv_undef) 815aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1136 SV * pathname
1137 int flags
1138 int mode
1139 SV * callback
1140 PROTOTYPE: $$$;$ 816 PROTOTYPE: $$$;$
1141 PPCODE: 817 PPCODE:
1142{ 818{
1143 dREQ; 819 dREQ;
1144 820
1145 req->type = REQ_OPEN; 821 req->type = EIO_OPEN;
1146 req->data = newSVsv (pathname); 822 req->sv1 = newSVsv (pathname);
1147 req->dataptr = SvPVbyte_nolen (req->data); 823 req->ptr1 = SvPVbyte_nolen (req->sv1);
1148 req->fd = flags; 824 req->int1 = flags;
1149 req->mode = mode; 825 req->int2 = mode;
1150 826
1151 REQ_SEND; 827 REQ_SEND;
1152} 828}
1153 829
1154void 830void
1155aio_close (fh,callback=&PL_sv_undef) 831aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1156 SV * fh
1157 SV * callback
1158 PROTOTYPE: $;$ 832 PROTOTYPE: $;$
1159 ALIAS: 833 ALIAS:
1160 aio_close = REQ_CLOSE
1161 aio_fsync = REQ_FSYNC 834 aio_fsync = EIO_FSYNC
1162 aio_fdatasync = REQ_FDATASYNC 835 aio_fdatasync = EIO_FDATASYNC
1163 PPCODE: 836 PPCODE:
1164{ 837{
838 int fd = s_fileno_croak (fh, 0);
1165 dREQ; 839 dREQ;
1166 840
1167 req->type = ix; 841 req->type = ix;
1168 req->fh = newSVsv (fh); 842 req->sv1 = newSVsv (fh);
1169 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 843 req->int1 = fd;
1170 844
1171 REQ_SEND (req); 845 REQ_SEND (req);
1172} 846}
1173 847
1174void 848void
849aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
850 PROTOTYPE: $$$$;$
851 PPCODE:
852{
853 int fd = s_fileno_croak (fh, 0);
854 dREQ;
855
856 req->type = EIO_SYNC_FILE_RANGE;
857 req->sv1 = newSVsv (fh);
858 req->int1 = fd;
859 req->offs = offset;
860 req->size = nbytes;
861 req->int2 = flags;
862
863 REQ_SEND (req);
864}
865
866void
867aio_close (SV *fh, SV *callback=&PL_sv_undef)
868 PROTOTYPE: $;$
869 PPCODE:
870{
871 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872 int fd = s_fileno_croak (fh, 0);
873 dREQ;
874
875 if (close_pipe < 0)
876 {
877 int pipefd [2];
878
879 if (pipe (pipefd) < 0
880 || close (pipefd [1]) < 0
881 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
882 abort (); /*D*/
883
884 close_pipe = pipefd [0];
885 }
886
887 req->type = EIO_DUP2;
888 req->int1 = close_pipe;
889 req->sv2 = newSVsv (fh);
890 req->int2 = fd;
891
892 REQ_SEND (req);
893}
894
895void
1175aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 896aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 UV length
1179 SV * data
1180 UV dataoffset
1181 SV * callback
1182 ALIAS: 897 ALIAS:
1183 aio_read = REQ_READ 898 aio_read = EIO_READ
1184 aio_write = REQ_WRITE 899 aio_write = EIO_WRITE
1185 PROTOTYPE: $$$$$;$ 900 PROTOTYPE: $$$$$;$
1186 PPCODE: 901 PPCODE:
1187{ 902{
1188 aio_req req;
1189 STRLEN svlen; 903 STRLEN svlen;
904 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1190 char *svptr = SvPVbyte (data, svlen); 905 char *svptr = SvPVbyte (data, svlen);
1191 906 UV len = SvUV (length);
1192 SvUPGRADE (data, SVt_PV);
1193 SvPOK_on (data);
1194 907
1195 if (dataoffset < 0) 908 if (dataoffset < 0)
1196 dataoffset += svlen; 909 dataoffset += svlen;
1197 910
1198 if (dataoffset < 0 || dataoffset > svlen) 911 if (dataoffset < 0 || dataoffset > svlen)
1199 croak ("data offset outside of string"); 912 croak ("dataoffset outside of data scalar");
1200 913
1201 if (ix == REQ_WRITE) 914 if (ix == EIO_WRITE)
1202 { 915 {
1203 /* write: check length and adjust. */ 916 /* write: check length and adjust. */
1204 if (length < 0 || length + dataoffset > svlen) 917 if (!SvOK (length) || len + dataoffset > svlen)
1205 length = svlen - dataoffset; 918 len = svlen - dataoffset;
1206 } 919 }
1207 else 920 else
1208 { 921 {
1209 /* read: grow scalar as necessary */ 922 /* read: check type and grow scalar as necessary */
923 SvUPGRADE (data, SVt_PV);
1210 svptr = SvGROW (data, length + dataoffset); 924 svptr = SvGROW (data, len + dataoffset + 1);
1211 } 925 }
1212
1213 if (length < 0)
1214 croak ("length must not be negative");
1215 926
1216 { 927 {
1217 dREQ; 928 dREQ;
1218 929
1219 req->type = ix; 930 req->type = ix;
1220 req->fh = newSVsv (fh); 931 req->sv1 = newSVsv (fh);
1221 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 932 req->int1 = fd;
1222 : IoOFP (sv_2io (fh))); 933 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223 req->offset = offset; 934 req->size = len;
1224 req->length = length;
1225 req->data = SvREFCNT_inc (data); 935 req->sv2 = SvREFCNT_inc (data);
1226 req->dataptr = (char *)svptr + dataoffset; 936 req->ptr2 = (char *)svptr + dataoffset;
937 req->stroffset = dataoffset;
1227 938
1228 if (!SvREADONLY (data)) 939 if (!SvREADONLY (data))
1229 { 940 {
1230 SvREADONLY_on (data); 941 SvREADONLY_on (data);
1231 req->data2ptr = (void *)data; 942 req->flags |= FLAG_SV2_RO_OFF;
1232 } 943 }
1233 944
1234 REQ_SEND; 945 REQ_SEND;
1235 } 946 }
1236} 947}
1237 948
1238void 949void
950aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
951 PROTOTYPE: $$;$
952 PPCODE:
953{
954 SV *data;
955 dREQ;
956
957 req->type = EIO_READLINK;
958 req->sv1 = newSVsv (path);
959 req->ptr1 = SvPVbyte_nolen (req->sv1);
960
961 REQ_SEND;
962}
963
964void
1239aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 965aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1240 SV * out_fh
1241 SV * in_fh
1242 UV in_offset
1243 UV length
1244 SV * callback
1245 PROTOTYPE: $$$$;$ 966 PROTOTYPE: $$$$;$
1246 PPCODE: 967 PPCODE:
1247{ 968{
969 int ifd = s_fileno_croak (in_fh , 0);
970 int ofd = s_fileno_croak (out_fh, 1);
1248 dREQ; 971 dREQ;
1249 972
1250 req->type = REQ_SENDFILE; 973 req->type = EIO_SENDFILE;
1251 req->fh = newSVsv (out_fh); 974 req->sv1 = newSVsv (out_fh);
1252 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 975 req->int1 = ofd;
1253 req->fh2 = newSVsv (in_fh); 976 req->sv2 = newSVsv (in_fh);
1254 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 977 req->int2 = ifd;
1255 req->offset = in_offset; 978 req->offs = in_offset;
1256 req->length = length; 979 req->size = length;
1257 980
1258 REQ_SEND; 981 REQ_SEND;
1259} 982}
1260 983
1261void 984void
1262aio_readahead (fh,offset,length,callback=&PL_sv_undef) 985aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1263 SV * fh
1264 UV offset
1265 IV length
1266 SV * callback
1267 PROTOTYPE: $$$;$ 986 PROTOTYPE: $$$;$
1268 PPCODE: 987 PPCODE:
1269{ 988{
989 int fd = s_fileno_croak (fh, 0);
1270 dREQ; 990 dREQ;
1271 991
1272 req->type = REQ_READAHEAD; 992 req->type = EIO_READAHEAD;
1273 req->fh = newSVsv (fh); 993 req->sv1 = newSVsv (fh);
1274 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 994 req->int1 = fd;
1275 req->offset = offset; 995 req->offs = offset;
1276 req->length = length; 996 req->size = length;
1277 997
1278 REQ_SEND; 998 REQ_SEND;
1279} 999}
1280 1000
1281void 1001void
1282aio_stat (fh_or_path,callback=&PL_sv_undef) 1002aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1283 SV * fh_or_path
1284 SV * callback
1285 ALIAS: 1003 ALIAS:
1286 aio_stat = REQ_STAT 1004 aio_stat = EIO_STAT
1287 aio_lstat = REQ_LSTAT 1005 aio_lstat = EIO_LSTAT
1006 aio_statvfs = EIO_STATVFS
1288 PPCODE: 1007 PPCODE:
1289{ 1008{
1290 dREQ; 1009 dREQ;
1291 1010
1292 New (0, req->statdata, 1, Stat_t); 1011 req->sv1 = newSVsv (fh_or_path);
1293 if (!req->statdata)
1294 {
1295 req_free (req);
1296 croak ("out of memory during aio_req->statdata allocation");
1297 }
1298 1012
1299 if (SvPOK (fh_or_path)) 1013 if (SvPOK (req->sv1))
1300 { 1014 {
1301 req->type = ix; 1015 req->type = ix;
1302 req->data = newSVsv (fh_or_path);
1303 req->dataptr = SvPVbyte_nolen (req->data); 1016 req->ptr1 = SvPVbyte_nolen (req->sv1);
1304 } 1017 }
1305 else 1018 else
1306 { 1019 {
1307 req->type = REQ_FSTAT; 1020 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1308 req->fh = newSVsv (fh_or_path);
1309 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1021 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1310 } 1022 }
1311 1023
1312 REQ_SEND; 1024 REQ_SEND;
1313} 1025}
1314 1026
1315void 1027void
1028aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1029 PPCODE:
1030{
1031 dREQ;
1032
1033 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1034 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1035 req->sv1 = newSVsv (fh_or_path);
1036
1037 if (SvPOK (req->sv1))
1038 {
1039 req->type = EIO_UTIME;
1040 req->ptr1 = SvPVbyte_nolen (req->sv1);
1041 }
1042 else
1043 {
1044 req->type = EIO_FUTIME;
1045 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1046 }
1047
1048 REQ_SEND;
1049}
1050
1051void
1052aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1053 PPCODE:
1054{
1055 dREQ;
1056
1057 req->sv1 = newSVsv (fh_or_path);
1058 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1059
1060 if (SvPOK (req->sv1))
1061 {
1062 req->type = EIO_TRUNCATE;
1063 req->ptr1 = SvPVbyte_nolen (req->sv1);
1064 }
1065 else
1066 {
1067 req->type = EIO_FTRUNCATE;
1068 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1069 }
1070
1071 REQ_SEND;
1072}
1073
1074void
1075aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1076 ALIAS:
1077 aio_chmod = EIO_CHMOD
1078 aio_mkdir = EIO_MKDIR
1079 PPCODE:
1080{
1081 dREQ;
1082
1083 req->int2 = mode;
1084 req->sv1 = newSVsv (fh_or_path);
1085
1086 if (SvPOK (req->sv1))
1087 {
1088 req->type = ix;
1089 req->ptr1 = SvPVbyte_nolen (req->sv1);
1090 }
1091 else
1092 {
1093 req->type = EIO_FCHMOD;
1094 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1095 }
1096
1097 REQ_SEND;
1098}
1099
1100void
1101aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1102 PPCODE:
1103{
1104 dREQ;
1105
1106 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1107 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1108 req->sv1 = newSVsv (fh_or_path);
1109
1110 if (SvPOK (req->sv1))
1111 {
1112 req->type = EIO_CHOWN;
1113 req->ptr1 = SvPVbyte_nolen (req->sv1);
1114 }
1115 else
1116 {
1117 req->type = EIO_FCHOWN;
1118 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1119 }
1120
1121 REQ_SEND;
1122}
1123
1124void
1125aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1126 PPCODE:
1127{
1128 dREQ;
1129
1130 req->type = EIO_READDIR;
1131 req->sv1 = newSVsv (pathname);
1132 req->ptr1 = SvPVbyte_nolen (req->sv1);
1133 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1134
1135 if (flags & EIO_READDIR_DENTS)
1136 req->int1 |= EIO_READDIR_CUSTOM2;
1137
1138 REQ_SEND;
1139}
1140
1141void
1316aio_unlink (pathname,callback=&PL_sv_undef) 1142aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1317 SV * pathname
1318 SV * callback
1319 ALIAS: 1143 ALIAS:
1320 aio_unlink = REQ_UNLINK 1144 aio_unlink = EIO_UNLINK
1321 aio_rmdir = REQ_RMDIR 1145 aio_rmdir = EIO_RMDIR
1322 aio_readdir = REQ_READDIR 1146 aio_readdir = EIO_READDIR
1323 PPCODE: 1147 PPCODE:
1324{ 1148{
1325 dREQ; 1149 dREQ;
1326 1150
1327 req->type = ix; 1151 req->type = ix;
1328 req->data = newSVsv (pathname); 1152 req->sv1 = newSVsv (pathname);
1329 req->dataptr = SvPVbyte_nolen (req->data); 1153 req->ptr1 = SvPVbyte_nolen (req->sv1);
1330 1154
1331 REQ_SEND; 1155 REQ_SEND;
1332} 1156}
1333 1157
1334void 1158void
1335aio_link (oldpath,newpath,callback=&PL_sv_undef) 1159aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1336 SV * oldpath
1337 SV * newpath
1338 SV * callback
1339 ALIAS: 1160 ALIAS:
1340 aio_link = REQ_LINK 1161 aio_link = EIO_LINK
1341 aio_symlink = REQ_SYMLINK 1162 aio_symlink = EIO_SYMLINK
1342 aio_rename = REQ_RENAME 1163 aio_rename = EIO_RENAME
1343 PPCODE: 1164 PPCODE:
1344{ 1165{
1345 dREQ; 1166 dREQ;
1346 1167
1347 req->type = ix; 1168 req->type = ix;
1348 req->fh = newSVsv (oldpath); 1169 req->sv1 = newSVsv (oldpath);
1349 req->data2ptr = SvPVbyte_nolen (req->fh); 1170 req->ptr1 = SvPVbyte_nolen (req->sv1);
1350 req->data = newSVsv (newpath); 1171 req->sv2 = newSVsv (newpath);
1351 req->dataptr = SvPVbyte_nolen (req->data); 1172 req->ptr2 = SvPVbyte_nolen (req->sv2);
1352 1173
1353 REQ_SEND; 1174 REQ_SEND;
1354} 1175}
1355 1176
1356void 1177void
1357aio_busy (delay,callback=&PL_sv_undef) 1178aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1358 double delay
1359 SV * callback
1360 PPCODE: 1179 PPCODE:
1361{ 1180{
1362 dREQ; 1181 dREQ;
1363 1182
1364 req->type = REQ_BUSY; 1183 req->type = EIO_MKNOD;
1365 req->fd = delay < 0. ? 0 : delay; 1184 req->sv1 = newSVsv (pathname);
1366 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1185 req->ptr1 = SvPVbyte_nolen (req->sv1);
1367 1186 req->int2 = (mode_t)mode;
1187 req->offs = dev;
1188
1368 REQ_SEND; 1189 REQ_SEND;
1369} 1190}
1370 1191
1371void 1192void
1193aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1194 ALIAS:
1195 aio_mtouch = EIO_MTOUCH
1196 aio_msync = EIO_MSYNC
1197 PROTOTYPE: $$$$;$
1198 PPCODE:
1199{
1200 STRLEN svlen;
1201 UV len = SvUV (length);
1202 char *svptr = SvPVbyte (data, svlen);
1203
1204 if (offset < 0)
1205 offset += svlen;
1206
1207 if (offset < 0 || offset > svlen)
1208 croak ("offset outside of scalar");
1209
1210 if (!SvOK (length) || len + offset > svlen)
1211 len = svlen - offset;
1212
1213 {
1214 dREQ;
1215
1216 req->type = ix;
1217 req->size = len;
1218 req->sv2 = SvREFCNT_inc (data);
1219 req->ptr2 = (char *)svptr + offset;
1220 req->int1 = flags;
1221
1222 REQ_SEND;
1223 }
1224}
1225
1226void
1227aio_busy (double delay, SV *callback=&PL_sv_undef)
1228 PPCODE:
1229{
1230 dREQ;
1231
1232 req->type = EIO_BUSY;
1233 req->nv1 = delay < 0. ? 0. : delay;
1234
1235 REQ_SEND;
1236}
1237
1238void
1372aio_group (callback=&PL_sv_undef) 1239aio_group (SV *callback=&PL_sv_undef)
1373 SV * callback
1374 PROTOTYPE: ;$ 1240 PROTOTYPE: ;$
1375 PPCODE: 1241 PPCODE:
1376{ 1242{
1377 dREQ; 1243 dREQ;
1378 1244
1379 req->type = REQ_GROUP; 1245 req->type = EIO_GROUP;
1246
1380 req_send (req); 1247 req_submit (req);
1381
1382 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1248 XPUSHs (req_sv (req, aio_grp_stash));
1383} 1249}
1384 1250
1385void 1251void
1386aio_nop (callback=&PL_sv_undef) 1252aio_nop (SV *callback=&PL_sv_undef)
1387 SV * callback 1253 ALIAS:
1254 aio_nop = EIO_NOP
1255 aio_sync = EIO_SYNC
1388 PPCODE: 1256 PPCODE:
1389{ 1257{
1390 dREQ; 1258 dREQ;
1391 1259
1392 req->type = REQ_NOP; 1260 req->type = ix;
1393 1261
1394 REQ_SEND; 1262 REQ_SEND;
1395} 1263}
1396 1264
1397void 1265int
1398aioreq_pri (int pri = DEFAULT_PRI) 1266aioreq_pri (int pri = 0)
1399 CODE: 1267 PROTOTYPE: ;$
1268 CODE:
1269 RETVAL = next_pri;
1270 if (items > 0)
1271 {
1400 if (pri < PRI_MIN) pri = PRI_MIN; 1272 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1401 if (pri > PRI_MAX) pri = PRI_MAX; 1273 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1402 next_pri = pri + PRI_BIAS; 1274 next_pri = pri;
1275 }
1276 OUTPUT:
1277 RETVAL
1403 1278
1404void 1279void
1405aioreq_nice (int nice = 0) 1280aioreq_nice (int nice = 0)
1406 CODE: 1281 CODE:
1407 nice = next_pri - nice; 1282 nice = next_pri - nice;
1408 if (nice < PRI_MIN) nice = PRI_MIN; 1283 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1409 if (nice > PRI_MAX) nice = PRI_MAX; 1284 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1410 next_pri = nice + PRI_BIAS; 1285 next_pri = nice;
1411 1286
1412void 1287void
1413flush () 1288flush ()
1414 PROTOTYPE: 1289 PROTOTYPE:
1415 CODE: 1290 CODE:
1416 while (nreqs) 1291 while (eio_nreqs ())
1417 { 1292 {
1418 poll_wait (); 1293 poll_wait ();
1419 poll_cb (0); 1294 poll_cb ();
1420 } 1295 }
1421 1296
1422void 1297int
1423poll() 1298poll()
1424 PROTOTYPE: 1299 PROTOTYPE:
1425 CODE: 1300 CODE:
1426 if (nreqs)
1427 {
1428 poll_wait (); 1301 poll_wait ();
1429 poll_cb (0); 1302 RETVAL = poll_cb ();
1430 } 1303 OUTPUT:
1304 RETVAL
1431 1305
1432int 1306int
1433poll_fileno() 1307poll_fileno()
1434 PROTOTYPE: 1308 PROTOTYPE:
1435 CODE: 1309 CODE:
1436 RETVAL = respipe [0]; 1310 RETVAL = s_epipe_fd (&respipe);
1437 OUTPUT: 1311 OUTPUT:
1438 RETVAL 1312 RETVAL
1439 1313
1440int 1314int
1441poll_cb(...) 1315poll_cb(...)
1442 PROTOTYPE: 1316 PROTOTYPE:
1443 CODE: 1317 CODE:
1444 RETVAL = poll_cb (0); 1318 RETVAL = poll_cb ();
1445 OUTPUT: 1319 OUTPUT:
1446 RETVAL 1320 RETVAL
1447 1321
1448int
1449poll_some(int max = 0)
1450 PROTOTYPE: $
1451 CODE:
1452 RETVAL = poll_cb (max);
1453 OUTPUT:
1454 RETVAL
1455
1456void 1322void
1457poll_wait() 1323poll_wait()
1458 PROTOTYPE: 1324 PROTOTYPE:
1459 CODE: 1325 CODE:
1460 if (nreqs)
1461 poll_wait (); 1326 poll_wait ();
1462 1327
1463int 1328int
1464nreqs() 1329nreqs()
1465 PROTOTYPE: 1330 PROTOTYPE:
1466 CODE: 1331 CODE:
1467 RETVAL = nreqs; 1332 RETVAL = eio_nreqs ();
1468 OUTPUT: 1333 OUTPUT:
1469 RETVAL 1334 RETVAL
1470 1335
1336int
1337nready()
1338 PROTOTYPE:
1339 CODE:
1340 RETVAL = eio_nready ();
1341 OUTPUT:
1342 RETVAL
1343
1344int
1345npending()
1346 PROTOTYPE:
1347 CODE:
1348 RETVAL = eio_npending ();
1349 OUTPUT:
1350 RETVAL
1351
1352int
1353nthreads()
1354 PROTOTYPE:
1355 CODE:
1356 RETVAL = eio_nthreads ();
1357 OUTPUT:
1358 RETVAL
1359
1360int
1361fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1362 PROTOTYPE: $$$$
1363 CODE:
1364#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1365 RETVAL = posix_fadvise (fh, offset, length, advice);
1366#else
1367 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1368#endif
1369 OUTPUT:
1370 RETVAL
1371
1372ssize_t
1373sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1374 PROTOTYPE: $$$$
1375 CODE:
1376 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1377 OUTPUT:
1378 RETVAL
1379
1380void
1381mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382 PROTOTYPE: $$$$$;$
1383 PPCODE:
1384 sv_unmagic (scalar, MMAP_MAGIC);
1385{
1386 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388 if (addr == (void *)-1)
1389 XSRETURN_NO;
1390
1391 /* we store the length in mg_obj, as namlen is I32 :/ */
1392 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393 ->mg_obj = (SV *)length;
1394
1395 SvUPGRADE (scalar, SVt_PV); /* nop... */
1396 if (!(prot & PROT_WRITE))
1397 SvREADONLY_on (scalar);
1398
1399 SvPVX (scalar) = (char *)addr;
1400 SvCUR_set (scalar, length);
1401 SvLEN_set (scalar, 0);
1402 SvPOK_only (scalar);
1403
1404 XSRETURN_YES;
1405}
1406
1407void
1408munmap (SV *scalar)
1409 PROTOTYPE: $
1410 CODE:
1411 sv_unmagic (scalar, MMAP_MAGIC);
1412
1413int
1414mlockall (int flags)
1415 PROTOTYPE: $
1416 CODE:
1417#if _POSIX_MEMLOCK
1418#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1419 extern int mallopt (int, int);
1420 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1421#endif
1422 mlockall (flags);
1423#else
1424 RETVAL = -1;
1425 errno = ENOSYS;
1426#endif
1427 OUTPUT:
1428 RETVAL
1429
1430int
1431munlockall ()
1432 PROTOTYPE:
1433 CODE:
1434#if _POSIX_MEMLOCK
1435 munlockall ();
1436#else
1437 RETVAL = -1;
1438 errno = ENOSYS;
1439#endif
1440 OUTPUT:
1441 RETVAL
1442
1443void _on_next_submit (SV *cb)
1444 CODE:
1445 SvREFCNT_dec (on_next_submit);
1446 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1447
1471PROTOTYPES: DISABLE 1448PROTOTYPES: DISABLE
1472 1449
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1450MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 1451
1475void 1452void
1476cancel (aio_req_ornot req) 1453cancel (aio_req_ornot req)
1477 CODE: 1454 CODE:
1478 req_cancel (req); 1455 eio_cancel (req);
1479 1456
1480void 1457void
1481cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1458cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1482 CODE: 1459 PPCODE:
1460{
1461 if (GIMME_V != G_VOID)
1462 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1463
1464 if (items > 1)
1465 {
1466 SV *cb_cv =get_cb (callback);
1467
1483 SvREFCNT_dec (req->callback); 1468 SvREFCNT_dec (req->callback);
1484 req->callback = newSVsv (callback); 1469 req->callback = SvREFCNT_inc (cb_cv);
1470 }
1471}
1485 1472
1486MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1473MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1487 1474
1488void 1475void
1489add (aio_req grp, ...) 1476add (aio_req grp, ...)
1490 PPCODE: 1477 PPCODE:
1491{ 1478{
1492 int i; 1479 int i;
1493 aio_req req;
1494 1480
1495 if (grp->fd == 2) 1481 if (grp->int1 == 2)
1496 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1482 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1497 1483
1498 for (i = 1; i < items; ++i ) 1484 for (i = 1; i < items; ++i )
1499 { 1485 {
1486 aio_req req;
1487
1500 if (GIMME_V != G_VOID) 1488 if (GIMME_V != G_VOID)
1501 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1489 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1502 1490
1503 req = SvAIO_REQ (ST (i)); 1491 req = SvAIO_REQ (ST (i));
1504 1492
1505 if (req) 1493 if (req)
1506 { 1494 eio_grp_add (grp, req);
1507 ++grp->length;
1508 req->grp = grp;
1509
1510 req->grp_prev = 0;
1511 req->grp_next = grp->grp_first;
1512
1513 if (grp->grp_first)
1514 grp->grp_first->grp_prev = req;
1515
1516 grp->grp_first = req;
1517 }
1518 } 1495 }
1519} 1496}
1520 1497
1521void 1498void
1522cancel_subs (aio_req_ornot req) 1499cancel_subs (aio_req_ornot req)
1526void 1503void
1527result (aio_req grp, ...) 1504result (aio_req grp, ...)
1528 CODE: 1505 CODE:
1529{ 1506{
1530 int i; 1507 int i;
1508 AV *av;
1509
1510 grp->errorno = errno;
1511
1531 AV *av = newAV (); 1512 av = newAV ();
1513 av_extend (av, items - 1);
1532 1514
1533 for (i = 1; i < items; ++i ) 1515 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 1516 av_push (av, newSVsv (ST (i)));
1535 1517
1536 SvREFCNT_dec (grp->data); 1518 SvREFCNT_dec (grp->sv1);
1537 grp->data = (SV *)av; 1519 grp->sv1 = (SV *)av;
1538} 1520}
1521
1522void
1523errno (aio_req grp, int errorno = errno)
1524 CODE:
1525 grp->errorno = errorno;
1539 1526
1540void 1527void
1541limit (aio_req grp, int limit) 1528limit (aio_req grp, int limit)
1542 CODE: 1529 CODE:
1543 grp->fd2 = limit; 1530 eio_grp_limit (grp, limit);
1544 aio_grp_feed (grp);
1545 1531
1546void 1532void
1547feed (aio_req grp, SV *callback=&PL_sv_undef) 1533feed (aio_req grp, SV *callback=&PL_sv_undef)
1548 CODE: 1534 CODE:
1549{ 1535{
1550 SvREFCNT_dec (grp->fh2); 1536 SvREFCNT_dec (grp->sv2);
1551 grp->fh2 = newSVsv (callback); 1537 grp->sv2 = newSVsv (callback);
1538 grp->feed = aio_grp_feed;
1552 1539
1553 if (grp->fd2 <= 0) 1540 if (grp->int2 <= 0)
1554 grp->fd2 = 2; 1541 grp->int2 = 2;
1555 1542
1556 aio_grp_feed (grp); 1543 eio_grp_limit (grp, grp->int2);
1557} 1544}
1558 1545

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