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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.76 by root, Thu Oct 26 12:38:04 2006 UTC vs.
Revision 1.167 by root, Sun May 9 20:49:52 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 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); 230static void req_destroy (aio_req req);
251static void req_cancel (aio_req req); 231static void req_cancel (aio_req req);
252 232
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
253/* must be called at most once */ 245/* must be called at most once */
254static SV *req_sv (aio_req req, const char *klass) 246static SV *req_sv (aio_req req, HV *stash)
255{ 247{
256 if (!req->self) 248 if (!req->self)
257 { 249 {
258 req->self = (SV *)newHV (); 250 req->self = (SV *)newHV ();
259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 251 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
260 } 252 }
261 253
262 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 254 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
263} 255}
264 256
265static aio_req SvAIO_REQ (SV *sv) 257static aio_req SvAIO_REQ (SV *sv)
266{ 258{
267 MAGIC *mg; 259 MAGIC *mg;
268 260
269 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")))
270 croak ("object of class " AIO_REQ_KLASS " expected"); 265 croak ("object of class IO::AIO::REQ expected");
271 266
272 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 267 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273 268
274 return mg ? (aio_req)mg->mg_ptr : 0; 269 return mg ? (aio_req)mg->mg_ptr : 0;
275} 270}
276 271
277static void aio_grp_feed (aio_req grp) 272static void aio_grp_feed (aio_req grp)
278{ 273{
279 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 274 if (grp->sv2 && SvOK (grp->sv2))
280 { 275 {
281 int old_len = grp->length;
282
283 if (grp->fh2 && SvOK (grp->fh2))
284 {
285 dSP; 276 dSP;
286 277
287 ENTER; 278 ENTER;
288 SAVETMPS; 279 SAVETMPS;
289 PUSHMARK (SP); 280 PUSHMARK (SP);
290 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 281 XPUSHs (req_sv (grp, aio_grp_stash));
291 PUTBACK; 282 PUTBACK;
292 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 283 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293 SPAGAIN; 284 SPAGAIN;
294 FREETMPS; 285 FREETMPS;
295 LEAVE; 286 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 } 287 }
306} 288}
307 289
308static void aio_grp_dec (aio_req grp) 290static void req_submit (eio_req *req)
309{ 291{
310 --grp->length; 292 eio_submit (req);
311 293
312 /* call feeder, if applicable */ 294 if (expect_false (on_next_submit))
313 aio_grp_feed (grp);
314
315 /* finish, if done */
316 if (!grp->length && grp->fd)
317 { 295 {
318 req_invoke (grp); 296 dSP;
319 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);
320 } 304 }
321} 305}
322 306
323static void poll_wait () 307static int req_invoke (eio_req *req)
324{ 308{
325 fd_set rfd; 309 if (req->flags & FLAG_SV2_RO_OFF)
310 SvREADONLY_off (req->sv2);
326 311
327 while (nreqs) 312 if (!EIO_CANCELLED (req) && req->callback)
328 { 313 {
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; 314 dSP;
351 315 static SV *sv_result_cache; /* caches the result integer SV */
352 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 316 SV *sv_result;
353 {
354 errno = req->errorno;
355 317
356 ENTER; 318 ENTER;
357 SAVETMPS; 319 SAVETMPS;
358 PUSHMARK (SP); 320 PUSHMARK (SP);
359 EXTEND (SP, 1); 321 EXTEND (SP, 1);
360 322
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
361 switch (req->type) 335 switch (req->type)
362 { 336 {
363 case REQ_READDIR: 337 case EIO_READDIR:
364 { 338 {
365 SV *rv = &PL_sv_undef; 339 SV *rv = &PL_sv_undef;
366 340
367 if (req->result >= 0) 341 if (req->result >= 0)
368 { 342 {
369 int i; 343 int i;
370 char *buf = req->data2ptr; 344 char *names = (char *)req->ptr2;
345 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
371 AV *av = newAV (); 346 AV *av = newAV ();
372 347
373 av_extend (av, req->result - 1); 348 av_extend (av, req->result - 1);
374 349
375 for (i = 0; i < req->result; ++i) 350 for (i = 0; i < req->result; ++i)
376 { 351 {
377 SV *sv = newSVpv (buf, 0); 352 if (req->int1 & EIO_READDIR_DENTS)
353 {
354 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
378 355
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
379 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);
380 buf += SvCUR (sv) + 1; 384 names += SvCUR (name) + 1;
385 }
381 } 386 }
382 387
383 rv = sv_2mortal (newRV_noinc ((SV *)av)); 388 rv = sv_2mortal (newRV_noinc ((SV *)av));
384 } 389 }
385 390
386 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))));
387 } 395 }
388 break; 396 break;
389 397
390 case REQ_OPEN: 398 case EIO_OPEN:
391 { 399 {
392 /* convert fd to fh */ 400 /* convert fd to fh */
393 SV *fh; 401 SV *fh = &PL_sv_undef;
394 402
395 PUSHs (sv_2mortal (newSViv (req->result))); 403 if (req->result >= 0)
396 PUTBACK; 404 {
397 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 405 GV *gv = (GV *)sv_newmortal ();
398 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);
399 412
400 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 );
401 420
421 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
422 fh = (SV *)gv;
423 }
424
402 PUSHMARK (SP); 425 PUSHs (fh);
403 XPUSHs (sv_2mortal (fh));
404 } 426 }
405 break; 427 break;
406 428
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
407 case REQ_GROUP: 459 case EIO_GROUP:
408 req->fd = 2; /* mark group as finished */ 460 req->int1 = 2; /* mark group as finished */
409 461
410 if (req->data) 462 if (req->sv1)
411 { 463 {
412 int i; 464 int i;
413 AV *av = (AV *)req->data; 465 AV *av = (AV *)req->sv1;
414 466
415 EXTEND (SP, AvFILL (av) + 1); 467 EXTEND (SP, AvFILL (av) + 1);
416 for (i = 0; i <= AvFILL (av); ++i) 468 for (i = 0; i <= AvFILL (av); ++i)
417 PUSHs (*av_fetch (av, i, 0)); 469 PUSHs (*av_fetch (av, i, 0));
418 } 470 }
419 break; 471 break;
420 472
421 case REQ_NOP: 473 case EIO_NOP:
422 case REQ_BUSY: 474 case EIO_BUSY:
423 break; 475 break;
424 476
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: /* EIO_DUP2 actually means aio_close(), su fudge result value */
502 if (req->result > 0)
503 SvIV_set (sv_result, 0);
504 /* FALLTHROUGH */
505
425 default: 506 default:
426 PUSHs (sv_2mortal (newSViv (req->result))); 507 PUSHs (sv_result);
427 break; 508 break;
428 } 509 }
429 510
511 errno = req->errorno;
430 512
431 PUTBACK; 513 PUTBACK;
432 call_sv (req->callback, G_VOID | G_EVAL); 514 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
433 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;
434 521
435 FREETMPS; 522 FREETMPS;
436 LEAVE; 523 LEAVE;
524
525 PUTBACK;
437 } 526 }
438 527
439 if (req->grp) 528 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} 529}
459 530
460static void req_free (aio_req req) 531static void req_destroy (aio_req req)
461{ 532{
462 if (req->self) 533 if (req->self)
463 { 534 {
464 sv_unmagic (req->self, PERL_MAGIC_ext); 535 sv_unmagic (req->self, PERL_MAGIC_ext);
465 SvREFCNT_dec (req->self); 536 SvREFCNT_dec (req->self);
466 } 537 }
467 538
468 SvREFCNT_dec (req->data);
469 SvREFCNT_dec (req->fh); 539 SvREFCNT_dec (req->sv1);
470 SvREFCNT_dec (req->fh2); 540 SvREFCNT_dec (req->sv2);
471 SvREFCNT_dec (req->callback); 541 SvREFCNT_dec (req->callback);
472 Safefree (req->statdata);
473
474 if (req->type == REQ_READDIR)
475 free (req->data2ptr);
476 542
477 Safefree (req); 543 Safefree (req);
478} 544}
479 545
480static void req_cancel_subs (aio_req grp) 546static void req_cancel_subs (aio_req grp)
481{ 547{
482 aio_req sub; 548 aio_req sub;
483 549
484 if (grp->type != REQ_GROUP) 550 if (grp->type != EIO_GROUP)
485 return; 551 return;
486 552
487 SvREFCNT_dec (grp->fh2); 553 SvREFCNT_dec (grp->sv2);
488 grp->fh2 = 0; 554 grp->sv2 = 0;
489 555
490 for (sub = grp->grp_first; sub; sub = sub->grp_next) 556 eio_grp_cancel (grp);
491 req_cancel (sub);
492} 557}
493 558
494static void req_cancel (aio_req req) 559static void
560create_respipe (void)
495{ 561{
496 req->flags |= FLAG_CANCELLED; 562 if (s_epipe_renew (&respipe))
497 563 croak ("IO::AIO: unable to initialize result pipe");
498 req_cancel_subs (req);
499} 564}
500 565
501static int poll_cb (int max) 566static void poll_wait (void)
502{ 567{
503 dSP; 568 while (eio_nreqs ())
504 int count = 0;
505 int do_croak = 0;
506 aio_req req;
507
508 while (max <= 0 || count < max)
509 { 569 {
570 int size;
571
510 LOCK (reslock); 572 X_LOCK (reslock);
511 req = reqq_shift (&res_queue); 573 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); 574 X_UNLOCK (reslock);
525 575
526 if (!req) 576 if (size)
527 break; 577 return;
528 578
529 --nreqs; 579 etp_maybe_start_thread ();
530 580
531 if (req->type == REQ_QUIT) 581 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 } 582 }
560
561 return count;
562} 583}
563 584
564static void *aio_proc(void *arg); 585static int poll_cb (void)
565
566static void start_thread (void)
567{ 586{
568 sigset_t fullsigset, oldsigset; 587 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 { 588 {
587 wrk->prev = &wrk_first; 589 int res = eio_poll ();
588 wrk->next = wrk_first.next; 590
589 wrk_first.next->prev = wrk; 591 if (res > 0)
590 wrk_first.next = wrk; 592 croak (0);
591 started++; 593
594 if (!max_outstanding || max_outstanding > eio_nreqs ())
595 return res;
596
597 poll_wait ();
592 } 598 }
593 else
594 free (wrk);
595
596 sigprocmask (SIG_SETMASK, &oldsigset, 0);
597 UNLOCK (wrklock);
598} 599}
599 600
600static void req_send (aio_req req) 601static void atfork_child (void)
601{ 602{
602 while (started < wanted && nreqs >= started) 603 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} 604}
662 605
663/*****************************************************************************/ 606/*****************************************************************************/
664/* work around various missing functions */
665 607
666#if !HAVE_PREADWRITE 608#if !_POSIX_MAPPED_FILES
667# define pread aio_pread 609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
668# define pwrite aio_pwrite 610# define munmap(addr,length) (errno = ENOSYS, -1)
669
670/*
671 * make our pread/pwrite safe against themselves, but not against
672 * normal read/write by using a mutex. slows down execution a lot,
673 * but that's your problem, not mine.
674 */
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 only: 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 611#endif
809#else
810 res = -1;
811 errno = ENOSYS;
812#endif
813 612
814 if (res < 0 613#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;
824 614
825 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;
826 621
827 while (count) 622 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);
832 623
833 if (cnt <= 0) 624 SvREADONLY_off (sv);
834 { 625 SvCUR_set (sv, 0);
835 if (cnt && !res) res = -1; 626 SvLEN_set (sv, 0);
836 break; 627 SvPVX (sv) = 0;
837 } 628 SvOK_off (sv);
838 629
839 cnt = write (ofd, aio_buf, cnt);
840
841 if (cnt <= 0)
842 {
843 if (cnt && !res) res = -1;
844 break;
845 }
846
847 offset += cnt;
848 res += cnt;
849 count -= cnt;
850 }
851 }
852
853 return res; 630 return 0;
854} 631}
855 632
856/* read a full directory */ 633static MGVTBL mmap_vtbl = {
857static void scandir_ (aio_req req, worker *self) 634 0, 0, 0, 0, mmap_free
858{ 635};
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}
916 636
917/*****************************************************************************/ 637/*****************************************************************************/
918 638
919static void *aio_proc (void *thr_arg) 639static SV *
640get_cb (SV *cb_sv)
920{ 641{
921 aio_req req; 642 SvGETMAGIC (cb_sv);
922 int type; 643 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} 644}
1069 645
1070#define dREQ \ 646#define dREQ \
647 SV *cb_cv; \
1071 aio_req req; \ 648 aio_req req; \
1072 int req_pri = next_pri; \ 649 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \ 650 next_pri = EIO_PRI_DEFAULT; \
1074 \ 651 \
1075 if (SvOK (callback) && !SvROK (callback)) \ 652 cb_cv = get_cb (callback); \
1076 croak ("callback must be undef or of reference type"); \
1077 \ 653 \
1078 Newz (0, req, 1, aio_cb); \ 654 Newz (0, req, 1, eio_req); \
1079 if (!req) \ 655 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \ 656 croak ("out of memory during eio_req allocation"); \
1081 \ 657 \
1082 req->callback = newSVsv (callback); \ 658 req->callback = SvREFCNT_inc (cb_cv); \
1083 req->pri = req_pri 659 req->pri = req_pri
1084 660
1085#define REQ_SEND \ 661#define REQ_SEND \
662 PUTBACK; \
1086 req_send (req); \ 663 req_submit (req); \
664 SPAGAIN; \
1087 \ 665 \
1088 if (GIMME_V != G_VOID) \ 666 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 667 XPUSHs (req_sv (req, aio_req_stash));
1090 668
1091MODULE = IO::AIO PACKAGE = IO::AIO 669MODULE = IO::AIO PACKAGE = IO::AIO
1092 670
1093PROTOTYPES: ENABLE 671PROTOTYPES: ENABLE
1094 672
1095BOOT: 673BOOT:
1096{ 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
1097 HV *stash = gv_stashpv ("IO::AIO", 1); 760 aio_stash = gv_stashpv ("IO::AIO" , 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 761 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 762 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101 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
1102 create_pipe (); 769 create_respipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105 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);
776}
777
1106void 778void
1107min_parallel (nthreads) 779max_poll_reqs (int nreqs)
1108 int nthreads
1109 PROTOTYPE: $ 780 PROTOTYPE: $
781 CODE:
782 eio_set_max_poll_reqs (nreqs);
1110 783
1111void 784void
1112max_parallel (nthreads) 785max_poll_time (double nseconds)
1113 int nthreads
1114 PROTOTYPE: $ 786 PROTOTYPE: $
787 CODE:
788 eio_set_max_poll_time (nseconds);
1115 789
1116void 790void
791min_parallel (int nthreads)
792 PROTOTYPE: $
793 CODE:
794 eio_set_min_parallel (nthreads);
795
796void
797max_parallel (int nthreads)
798 PROTOTYPE: $
799 CODE:
800 eio_set_max_parallel (nthreads);
801
802void
803max_idle (int nthreads)
804 PROTOTYPE: $
805 CODE:
806 eio_set_max_idle (nthreads);
807
808void
809max_outstanding (int maxreqs)
810 PROTOTYPE: $
811 CODE:
812 max_outstanding = maxreqs;
813
814void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef) 815aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$ 816 PROTOTYPE: $$$;$
1123 PPCODE: 817 PPCODE:
1124{ 818{
1125 dREQ; 819 dREQ;
1126 820
1127 req->type = REQ_OPEN; 821 req->type = EIO_OPEN;
1128 req->data = newSVsv (pathname); 822 req->sv1 = newSVsv (pathname);
1129 req->dataptr = SvPVbyte_nolen (req->data); 823 req->ptr1 = SvPVbyte_nolen (req->sv1);
1130 req->fd = flags; 824 req->int1 = flags;
1131 req->mode = mode; 825 req->int2 = mode;
1132 826
1133 REQ_SEND; 827 REQ_SEND;
1134} 828}
1135 829
1136void 830void
1137aio_close (fh,callback=&PL_sv_undef) 831aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$ 832 PROTOTYPE: $;$
1141 ALIAS: 833 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC 834 aio_fsync = EIO_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC 835 aio_fdatasync = EIO_FDATASYNC
1145 PPCODE: 836 PPCODE:
1146{ 837{
838 int fd = s_fileno_croak (fh, 0);
1147 dREQ; 839 dREQ;
1148 840
1149 req->type = ix; 841 req->type = ix;
1150 req->fh = newSVsv (fh); 842 req->sv1 = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 843 req->int1 = fd;
1152 844
1153 REQ_SEND (req); 845 REQ_SEND (req);
1154} 846}
1155 847
1156void 848void
849aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
850 PROTOTYPE: $$$$;$
851 PPCODE:
852{
853 int fd = s_fileno_croak (fh, 0);
854 dREQ;
855
856 req->type = EIO_SYNC_FILE_RANGE;
857 req->sv1 = newSVsv (fh);
858 req->int1 = fd;
859 req->offs = offset;
860 req->size = nbytes;
861 req->int2 = flags;
862
863 REQ_SEND (req);
864}
865
866void
867aio_close (SV *fh, SV *callback=&PL_sv_undef)
868 PROTOTYPE: $;$
869 PPCODE:
870{
871 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872 int fd = s_fileno_croak (fh, 0);
873 dREQ;
874
875 if (close_pipe < 0)
876 {
877 int pipefd [2];
878
879 if (pipe (pipefd) < 0
880 || close (pipefd [1]) < 0
881 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
882 abort (); /*D*/
883
884 close_pipe = pipefd [0];
885 }
886
887 req->type = EIO_DUP2;
888 req->int1 = close_pipe;
889 req->sv2 = newSVsv (fh);
890 req->int2 = fd;
891
892 REQ_SEND (req);
893}
894
895void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 896aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS: 897 ALIAS:
1165 aio_read = REQ_READ 898 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 899 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$ 900 PROTOTYPE: $$$$$;$
1168 PPCODE: 901 PPCODE:
1169{ 902{
1170 aio_req req;
1171 STRLEN svlen; 903 STRLEN svlen;
904 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 905 char *svptr = SvPVbyte (data, svlen);
1173 906 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 907
1177 if (dataoffset < 0) 908 if (dataoffset < 0)
1178 dataoffset += svlen; 909 dataoffset += svlen;
1179 910
1180 if (dataoffset < 0 || dataoffset > svlen) 911 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 912 croak ("dataoffset outside of data scalar");
1182 913
1183 if (ix == REQ_WRITE) 914 if (ix == EIO_WRITE)
1184 { 915 {
1185 /* write: check length and adjust. */ 916 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 917 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 918 len = svlen - dataoffset;
1188 } 919 }
1189 else 920 else
1190 { 921 {
1191 /* read: grow scalar as necessary */ 922 /* read: check type and grow scalar as necessary */
923 SvUPGRADE (data, SVt_PV);
1192 svptr = SvGROW (data, length + dataoffset); 924 svptr = SvGROW (data, len + dataoffset + 1);
1193 } 925 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 926
1198 { 927 {
1199 dREQ; 928 dREQ;
1200 929
1201 req->type = ix; 930 req->type = ix;
1202 req->fh = newSVsv (fh); 931 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 932 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 933 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 934 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 935 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 936 req->ptr2 = (char *)svptr + dataoffset;
937 req->stroffset = dataoffset;
1209 938
1210 if (!SvREADONLY (data)) 939 if (!SvREADONLY (data))
1211 { 940 {
1212 SvREADONLY_on (data); 941 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 942 req->flags |= FLAG_SV2_RO_OFF;
1214 } 943 }
1215 944
1216 REQ_SEND; 945 REQ_SEND;
1217 } 946 }
1218} 947}
1219 948
1220void 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
1221aio_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)
1222 SV * out_fh
1223 SV * in_fh
1224 UV in_offset
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$ 966 PROTOTYPE: $$$$;$
1228 PPCODE: 967 PPCODE:
1229{ 968{
969 int ifd = s_fileno_croak (in_fh , 0);
970 int ofd = s_fileno_croak (out_fh, 1);
1230 dREQ; 971 dREQ;
1231 972
1232 req->type = REQ_SENDFILE; 973 req->type = EIO_SENDFILE;
1233 req->fh = newSVsv (out_fh); 974 req->sv1 = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 975 req->int1 = ofd;
1235 req->fh2 = newSVsv (in_fh); 976 req->sv2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 977 req->int2 = ifd;
1237 req->offset = in_offset; 978 req->offs = in_offset;
1238 req->length = length; 979 req->size = length;
1239 980
1240 REQ_SEND; 981 REQ_SEND;
1241} 982}
1242 983
1243void 984void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef) 985aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$ 986 PROTOTYPE: $$$;$
1250 PPCODE: 987 PPCODE:
1251{ 988{
989 int fd = s_fileno_croak (fh, 0);
1252 dREQ; 990 dREQ;
1253 991
1254 req->type = REQ_READAHEAD; 992 req->type = EIO_READAHEAD;
1255 req->fh = newSVsv (fh); 993 req->sv1 = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 994 req->int1 = fd;
1257 req->offset = offset; 995 req->offs = offset;
1258 req->length = length; 996 req->size = length;
1259 997
1260 REQ_SEND; 998 REQ_SEND;
1261} 999}
1262 1000
1263void 1001void
1264aio_stat (fh_or_path,callback=&PL_sv_undef) 1002aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS: 1003 ALIAS:
1268 aio_stat = REQ_STAT 1004 aio_stat = EIO_STAT
1269 aio_lstat = REQ_LSTAT 1005 aio_lstat = EIO_LSTAT
1006 aio_statvfs = EIO_STATVFS
1270 PPCODE: 1007 PPCODE:
1271{ 1008{
1272 dREQ; 1009 dREQ;
1273 1010
1274 New (0, req->statdata, 1, Stat_t); 1011 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 1012
1281 if (SvPOK (fh_or_path)) 1013 if (SvPOK (req->sv1))
1282 { 1014 {
1283 req->type = ix; 1015 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data); 1016 req->ptr1 = SvPVbyte_nolen (req->sv1);
1286 } 1017 }
1287 else 1018 else
1288 { 1019 {
1289 req->type = REQ_FSTAT; 1020 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))); 1021 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292 } 1022 }
1293 1023
1294 REQ_SEND; 1024 REQ_SEND;
1295} 1025}
1296 1026
1297void 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
1298aio_unlink (pathname,callback=&PL_sv_undef) 1142aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299 SV * pathname
1300 SV * callback
1301 ALIAS: 1143 ALIAS:
1302 aio_unlink = REQ_UNLINK 1144 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1145 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1146 aio_readdir = EIO_READDIR
1305 PPCODE: 1147 PPCODE:
1306{ 1148{
1307 dREQ; 1149 dREQ;
1308 1150
1309 req->type = ix; 1151 req->type = ix;
1310 req->data = newSVsv (pathname); 1152 req->sv1 = newSVsv (pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1153 req->ptr1 = SvPVbyte_nolen (req->sv1);
1312 1154
1313 REQ_SEND; 1155 REQ_SEND;
1314} 1156}
1315 1157
1316void 1158void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1159aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1160 ALIAS:
1322 aio_link = REQ_LINK 1161 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1162 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1163 aio_rename = EIO_RENAME
1325 PPCODE: 1164 PPCODE:
1326{ 1165{
1327 dREQ; 1166 dREQ;
1328 1167
1329 req->type = ix; 1168 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1169 req->sv1 = newSVsv (oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1170 req->ptr1 = SvPVbyte_nolen (req->sv1);
1332 req->data = newSVsv (newpath); 1171 req->sv2 = newSVsv (newpath);
1333 req->dataptr = SvPVbyte_nolen (req->data); 1172 req->ptr2 = SvPVbyte_nolen (req->sv2);
1334 1173
1335 REQ_SEND; 1174 REQ_SEND;
1336} 1175}
1337 1176
1338void 1177void
1339aio_busy (delay,callback=&PL_sv_undef) 1178aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1179 PPCODE:
1343{ 1180{
1344 dREQ; 1181 dREQ;
1345 1182
1346 req->type = REQ_BUSY; 1183 req->type = EIO_MKNOD;
1347 req->fd = delay < 0. ? 0 : delay; 1184 req->sv1 = newSVsv (pathname);
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1185 req->ptr1 = SvPVbyte_nolen (req->sv1);
1349 1186 req->int2 = (mode_t)mode;
1187 req->offs = dev;
1188
1350 REQ_SEND; 1189 REQ_SEND;
1351} 1190}
1352 1191
1353void 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
1354aio_group (callback=&PL_sv_undef) 1239aio_group (SV *callback=&PL_sv_undef)
1355 SV * callback
1356 PROTOTYPE: ;$ 1240 PROTOTYPE: ;$
1357 PPCODE: 1241 PPCODE:
1358{ 1242{
1359 dREQ; 1243 dREQ;
1360 1244
1361 req->type = REQ_GROUP; 1245 req->type = EIO_GROUP;
1246
1362 req_send (req); 1247 req_submit (req);
1363
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1248 XPUSHs (req_sv (req, aio_grp_stash));
1365} 1249}
1366 1250
1367void 1251void
1368aio_nop (callback=&PL_sv_undef) 1252aio_nop (SV *callback=&PL_sv_undef)
1369 SV * callback 1253 ALIAS:
1254 aio_nop = EIO_NOP
1255 aio_sync = EIO_SYNC
1370 PPCODE: 1256 PPCODE:
1371{ 1257{
1372 dREQ; 1258 dREQ;
1373 1259
1374 req->type = REQ_NOP; 1260 req->type = ix;
1375 1261
1376 REQ_SEND; 1262 REQ_SEND;
1377} 1263}
1378 1264
1379void 1265int
1380aioreq_pri (int pri = DEFAULT_PRI) 1266aioreq_pri (int pri = 0)
1381 CODE: 1267 PROTOTYPE: ;$
1268 CODE:
1269 RETVAL = next_pri;
1270 if (items > 0)
1271 {
1382 if (pri < PRI_MIN) pri = PRI_MIN; 1272 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1383 if (pri > PRI_MAX) pri = PRI_MAX; 1273 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1384 next_pri = pri + PRI_BIAS; 1274 next_pri = pri;
1275 }
1276 OUTPUT:
1277 RETVAL
1385 1278
1386void 1279void
1387aioreq_nice (int nice = 0) 1280aioreq_nice (int nice = 0)
1388 CODE: 1281 CODE:
1389 nice = next_pri - nice; 1282 nice = next_pri - nice;
1390 if (nice < PRI_MIN) nice = PRI_MIN; 1283 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX; 1284 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1392 next_pri = nice + PRI_BIAS; 1285 next_pri = nice;
1393 1286
1394void 1287void
1395flush () 1288flush ()
1396 PROTOTYPE: 1289 PROTOTYPE:
1397 CODE: 1290 CODE:
1398 while (nreqs) 1291 while (eio_nreqs ())
1399 { 1292 {
1400 poll_wait (); 1293 poll_wait ();
1401 poll_cb (0); 1294 poll_cb ();
1402 } 1295 }
1403 1296
1404void 1297int
1405poll() 1298poll()
1406 PROTOTYPE: 1299 PROTOTYPE:
1407 CODE: 1300 CODE:
1408 if (nreqs)
1409 {
1410 poll_wait (); 1301 poll_wait ();
1411 poll_cb (0); 1302 RETVAL = poll_cb ();
1412 } 1303 OUTPUT:
1304 RETVAL
1413 1305
1414int 1306int
1415poll_fileno() 1307poll_fileno()
1416 PROTOTYPE: 1308 PROTOTYPE:
1417 CODE: 1309 CODE:
1418 RETVAL = respipe [0]; 1310 RETVAL = s_epipe_fd (&respipe);
1419 OUTPUT: 1311 OUTPUT:
1420 RETVAL 1312 RETVAL
1421 1313
1422int 1314int
1423poll_cb(...) 1315poll_cb(...)
1424 PROTOTYPE: 1316 PROTOTYPE:
1425 CODE: 1317 CODE:
1426 RETVAL = poll_cb (0); 1318 RETVAL = poll_cb ();
1427 OUTPUT: 1319 OUTPUT:
1428 RETVAL 1320 RETVAL
1429 1321
1430int
1431poll_some(int max = 0)
1432 PROTOTYPE: $
1433 CODE:
1434 RETVAL = poll_cb (max);
1435 OUTPUT:
1436 RETVAL
1437
1438void 1322void
1439poll_wait() 1323poll_wait()
1440 PROTOTYPE: 1324 PROTOTYPE:
1441 CODE: 1325 CODE:
1442 if (nreqs)
1443 poll_wait (); 1326 poll_wait ();
1444 1327
1445int 1328int
1446nreqs() 1329nreqs()
1447 PROTOTYPE: 1330 PROTOTYPE:
1448 CODE: 1331 CODE:
1449 RETVAL = nreqs; 1332 RETVAL = eio_nreqs ();
1450 OUTPUT: 1333 OUTPUT:
1451 RETVAL 1334 RETVAL
1452 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
1453PROTOTYPES: DISABLE 1448PROTOTYPES: DISABLE
1454 1449
1455MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1450MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456 1451
1457void 1452void
1458cancel (aio_req_ornot req) 1453cancel (aio_req_ornot req)
1459 CODE: 1454 CODE:
1460 req_cancel (req); 1455 eio_cancel (req);
1461 1456
1462void 1457void
1463cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1458cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1464 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
1465 SvREFCNT_dec (req->callback); 1468 SvREFCNT_dec (req->callback);
1466 req->callback = newSVsv (callback); 1469 req->callback = SvREFCNT_inc (cb_cv);
1470 }
1471}
1467 1472
1468MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1473MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1469 1474
1470void 1475void
1471add (aio_req grp, ...) 1476add (aio_req grp, ...)
1472 PPCODE: 1477 PPCODE:
1473{ 1478{
1474 int i; 1479 int i;
1475 aio_req req;
1476 1480
1477 if (grp->fd == 2) 1481 if (grp->int1 == 2)
1478 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");
1479 1483
1480 for (i = 1; i < items; ++i ) 1484 for (i = 1; i < items; ++i )
1481 { 1485 {
1486 aio_req req;
1487
1482 if (GIMME_V != G_VOID) 1488 if (GIMME_V != G_VOID)
1483 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1489 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1484 1490
1485 req = SvAIO_REQ (ST (i)); 1491 req = SvAIO_REQ (ST (i));
1486 1492
1487 if (req) 1493 if (req)
1488 { 1494 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 } 1495 }
1501} 1496}
1502 1497
1503void 1498void
1504cancel_subs (aio_req_ornot req) 1499cancel_subs (aio_req_ornot req)
1508void 1503void
1509result (aio_req grp, ...) 1504result (aio_req grp, ...)
1510 CODE: 1505 CODE:
1511{ 1506{
1512 int i; 1507 int i;
1508 AV *av;
1509
1510 grp->errorno = errno;
1511
1513 AV *av = newAV (); 1512 av = newAV ();
1513 av_extend (av, items - 1);
1514 1514
1515 for (i = 1; i < items; ++i ) 1515 for (i = 1; i < items; ++i )
1516 av_push (av, newSVsv (ST (i))); 1516 av_push (av, newSVsv (ST (i)));
1517 1517
1518 SvREFCNT_dec (grp->data); 1518 SvREFCNT_dec (grp->sv1);
1519 grp->data = (SV *)av; 1519 grp->sv1 = (SV *)av;
1520} 1520}
1521
1522void
1523errno (aio_req grp, int errorno = errno)
1524 CODE:
1525 grp->errorno = errorno;
1521 1526
1522void 1527void
1523limit (aio_req grp, int limit) 1528limit (aio_req grp, int limit)
1524 CODE: 1529 CODE:
1525 grp->fd2 = limit; 1530 eio_grp_limit (grp, limit);
1526 aio_grp_feed (grp);
1527 1531
1528void 1532void
1529feed (aio_req grp, SV *callback=&PL_sv_undef) 1533feed (aio_req grp, SV *callback=&PL_sv_undef)
1530 CODE: 1534 CODE:
1531{ 1535{
1532 SvREFCNT_dec (grp->fh2); 1536 SvREFCNT_dec (grp->sv2);
1533 grp->fh2 = newSVsv (callback); 1537 grp->sv2 = newSVsv (callback);
1538 grp->feed = aio_grp_feed;
1534 1539
1535 if (grp->fd2 <= 0) 1540 if (grp->int2 <= 0)
1536 grp->fd2 = 2; 1541 grp->int2 = 2;
1537 1542
1538 aio_grp_feed (grp); 1543 eio_grp_limit (grp, grp->int2);
1539} 1544}
1540 1545

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