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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.81 by root, Fri Oct 27 20:10:06 2006 UTC vs.
Revision 1.262 by root, Sun Aug 12 05:21:35 2018 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#if !defined mg_findext
18 10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 11#endif
20 12
21#include <stddef.h> 13#include <stddef.h>
14#include <stdlib.h>
22#include <errno.h> 15#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
26#include <sys/stat.h> 18#include <sys/stat.h>
27#include <limits.h> 19#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 20#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 21#include <sched.h>
32 22
33#if HAVE_SENDFILE 23#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 24# include <sys/mman.h>
39# elif __hpux 25#endif
26
27/* the incompetent fool that created musl keeps __linux__, refuses
28 * to implement any linux standard apis, and also has no way to test
29 * for his broken iplementation. don't complain to me if this fails
30 * for you.
31 */
32#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
33# include <linux/fs.h>
34# ifdef FS_IOC_FIEMAP
35# include <linux/types.h>
36# include <linux/fiemap.h>
37# define HAVE_FIEMAP 1
38# endif
39#endif
40
41/* perl namespace pollution */
42#undef VERSION
43
44/* perl stupidly overrides readdir and maybe others */
45/* with thread-unsafe versions, imagine that :( */
46#undef readdir
47#undef opendir
48#undef closedir
49
50#ifdef _WIN32
51
52 // perl overrides all those nice libc functions
53
54 #undef malloc
55 #undef free
56 #undef open
57 #undef read
58 #undef write
59 #undef send
60 #undef recv
61 #undef stat
62 #undef lstat
63 #undef fstat
64 #undef truncate
65 #undef ftruncate
66 #undef open
67 #undef link
68 #undef close
69 #undef unlink
70 #undef mkdir
71 #undef rmdir
72 #undef rename
73 #undef lseek
74 #undef opendir
75 #undef readdir
76 #undef closedir
77 #undef chmod
78 #undef fchmod
79 #undef dup
80 #undef dup2
81 #undef abort
82 #undef pipe
83
84 #define EIO_STRUCT_STAT struct _stati64
85 #define EIO_STRUCT_STATI64
86
87#else
88
40# include <sys/socket.h> 89 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 90 #include <sys/select.h>
91 #include <unistd.h>
92 #include <utime.h>
93 #include <signal.h>
94
95 #define EIO_STRUCT_STAT Stat_t
96
97#endif
98
99/*****************************************************************************/
100
101#if __GNUC__ >= 3
102# define expect(expr,value) __builtin_expect ((expr),(value))
103#else
104# define expect(expr,value) (expr)
105#endif
106
107#define expect_false(expr) expect ((expr) != 0, 0)
108#define expect_true(expr) expect ((expr) != 0, 1)
109
110/*****************************************************************************/
111
112#include "config.h"
113
114#if HAVE_ST_XTIMENSEC
115# define ATIMENSEC PL_statcache.st_atimensec
116# define MTIMENSEC PL_statcache.st_mtimensec
117# define CTIMENSEC PL_statcache.st_ctimensec
118#elif HAVE_ST_XTIMESPEC
119# define ATIMENSEC PL_statcache.st_atim.tv_nsec
120# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
121# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
122#else
123# define ATIMENSEC 0
124# define MTIMENSEC 0
125# define CTIMENSEC 0
126#endif
127
128#include "schmorp.h"
129
130#if HAVE_EVENTFD
131# include <sys/eventfd.h>
132#endif
133
134#if HAVE_TIMERFD
135# include <sys/timerfd.h>
136#endif
137
138#if HAVE_RLIMITS
139 #include <sys/time.h>
140 #include <sys/resource.h>
141#endif
142
143typedef SV SV8; /* byte-sv, used for argument-checking */
144typedef int aio_rfd; /* read file desriptor */
145typedef int aio_wfd; /* write file descriptor */
146
147static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
148
149#define EIO_REQ_MEMBERS \
150 SV *callback; \
151 SV *sv1, *sv2; \
152 SV *sv3, *sv4; \
153 STRLEN stroffset; \
154 SV *self;
155
156#define EIO_NO_WRAPPERS 1
157
158#include "libeio/eio.h"
159
160static int req_invoke (eio_req *req);
161#define EIO_FINISH(req) req_invoke (req)
162static void req_destroy (eio_req *grp);
163#define EIO_DESTROY(req) req_destroy (req)
164
165#include "libeio/eio.c"
166
167#if !HAVE_POSIX_FADVISE
168# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
169#endif
170
171#if !HAVE_POSIX_MADVISE
172# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
173#endif
174
175#ifndef MAP_ANONYMOUS
176# ifdef MAP_ANON
177# define MAP_ANONYMOUS MAP_ANON
43# else 178# else
44# error sendfile support requested but not available 179# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 180# endif
46#endif 181#endif
47 182
48/* used for struct dirent, AIX doesn't provide it */ 183#ifndef makedev
49#ifndef NAME_MAX 184# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif
52
53#ifndef PTHREAD_STACK_MIN
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
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
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 185#endif
186#ifndef major
187# define major(dev) ((dev) >> 8)
76#endif 188#endif
189#ifndef minor
190# define minor(dev) ((dev) & 0xff)
191#endif
77 192
78/* buffer size for various temporary buffers */ 193#if PAGESIZE <= 0
79#define AIO_BUFSIZE 65536 194# define PAGESIZE sysconf (_SC_PAGESIZE)
195#endif
80 196
81#define dBUF \ 197/*****************************************************************************/
82 char *aio_buf; \ 198
83 LOCK (wrklock); \ 199#if !_POSIX_MAPPED_FILES
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 200# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
85 UNLOCK (wrklock); \ 201# define munmap(addr,length) EIO_ENOSYS ()
86 if (!aio_buf) \ 202#endif
203
204#if !_POSIX_MEMORY_PROTECTION
205# define mprotect(addr,len,prot) EIO_ENOSYS ()
206#endif
207
208#if !MREMAP_MAYMOVE
209# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
210#endif
211
212#define FOREIGN_MAGIC PERL_MAGIC_ext
213
214static int ecb_cold
215mmap_free (pTHX_ SV *sv, MAGIC *mg)
216{
217 int old_errno = errno;
218 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
219 errno = old_errno;
220
221 mg->mg_obj = 0; /* just in case */
222
223 SvREADONLY_off (sv);
224
225 if (SvPVX (sv) != mg->mg_ptr)
226 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
227
228 SvCUR_set (sv, 0);
229 SvPVX (sv) = 0;
230 SvOK_off (sv);
231
87 return -1; 232 return 0;
233}
88 234
89enum { 235static MGVTBL mmap_vtbl = {
90 REQ_QUIT, 236 0, 0, 0, 0, mmap_free
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_MKNOD, REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101}; 237};
102 238
103#define AIO_REQ_KLASS "IO::AIO::REQ" 239static int ecb_cold
104#define AIO_GRP_KLASS "IO::AIO::GRP" 240sysfree_free (pTHX_ SV *sv, MAGIC *mg)
105
106typedef struct aio_cb
107{ 241{
108 struct aio_cb *volatile next; 242 free (mg->mg_ptr);
243 mg->mg_obj = 0; /* just in case */
109 244
110 SV *data, *callback; 245 SvREADONLY_off (sv);
111 SV *fh, *fh2;
112 void *dataptr, *data2ptr;
113 Stat_t *statdata;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 246
118 STRLEN dataoffset; 247 if (SvPVX (sv) != mg->mg_ptr)
119 int type; 248 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123 249
124 unsigned char flags; 250 SvCUR_set (sv, 0);
125 unsigned char pri; 251 SvPVX (sv) = 0;
252 SvOK_off (sv);
126 253
127 SV *self; /* the perl counterpart of this request, if any */ 254 return 0;
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 255}
129} aio_cb;
130 256
131enum { 257static MGVTBL sysfree_vtbl = {
132 FLAG_CANCELLED = 0x01, 258 0, 0, 0, 0, sysfree_free
133}; 259};
134 260
135typedef aio_cb *aio_req; 261/*****************************************************************************/
136typedef aio_cb *aio_req_ornot;
137 262
138enum { 263/* helper: set scalar to foreign ptr with custom free */
139 PRI_MIN = -4, 264static void
140 PRI_MAX = 4, 265sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
141
142 DEFAULT_PRI = 0,
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150
151#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153#else
154# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155#endif
156
157#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159
160/* worker threads management */
161static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
162
163typedef struct worker {
164 /* locked by wrklock */
165 struct worker *prev, *next;
166
167 pthread_t tid;
168
169 /* locked by reslock, reqlock or wrklock */
170 aio_req req; /* currently processed request */
171 void *dbuf;
172 DIR *dirp;
173} worker;
174
175static worker wrk_first = { &wrk_first, &wrk_first, 0 };
176
177static void worker_clear (worker *wrk)
178{ 266{
179 if (wrk->dirp) 267 sv_force_normal (sv);
268
269 /* we store the length in mg_obj, as namlen is I32 :/ */
270 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
271 ->mg_obj = (SV *)length;
272
273 SvUPGRADE (sv, SVt_PV); /* nop... */
274
275 if (SvLEN (sv))
276 Safefree (SvPVX (sv));
277
278 SvPVX (sv) = (char *)addr;
279 SvCUR_set (sv, length);
280 SvLEN_set (sv, 0);
281 SvPOK_only (sv);
282}
283
284static void
285sv_clear_foreign (SV *sv)
286{
287 /* todo: iterate over magic and only free ours, but of course */
288 /* the perl5porters will call that (correct) behaviour buggy */
289 sv_unmagic (sv, FOREIGN_MAGIC);
290}
291
292/*****************************************************************************/
293
294/* defines all sorts of constants to 0 unless they are already defined */
295/* also provides const_iv_ and const_niv_ macros for them */
296#include "def0.h"
297
298/*****************************************************************************/
299
300static void
301fiemap (eio_req *req)
302{
303 req->result = -1;
304
305#if HAVE_FIEMAP
306 /* assume some c99 */
307 struct fiemap *fiemap = 0;
308 size_t end_offset;
309 int count = req->int3;
310
311 req->flags |= EIO_FLAG_PTR1_FREE;
312
313 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
314 /* increase in 3.5kb steps */
315 if (count < 0)
316 count = 8;
317
318 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
319 errno = ENOMEM;
320 if (!fiemap)
321 return;
322
323 req->ptr1 = fiemap;
324
325 fiemap->fm_start = req->offs;
326 fiemap->fm_length = req->size;
327 fiemap->fm_flags = req->int2;
328 fiemap->fm_extent_count = count;
329
330 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
331 return;
332
333 if (req->int3 >= 0 /* not autosizing */
334 || !fiemap->fm_mapped_extents /* no more extents */
335 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
336 goto done;
337
338 /* else we have to loop -
339 * it would be tempting (actually I tried that first) to just query the
340 * number of extents needed, but linux often feels like not returning all
341 * extents, without telling us it left any out. this complicates
342 * this quite a bit.
343 */
344
345 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
346
347 for (;;)
180 { 348 {
181 closedir (wrk->dirp); 349 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
182 wrk->dirp = 0; 350 char scratch[3072];
183 } 351 struct fiemap *incmap = (struct fiemap *)scratch;
184 352
185 if (wrk->dbuf) 353 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
186 { 354 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
187 free (wrk->dbuf); 355 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
188 wrk->dbuf = 0; 356 incmap->fm_flags = fiemap->fm_flags;
189 } 357 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
190}
191 358
192static void worker_free (worker *wrk) 359 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
193{
194 wrk->next->prev = wrk->prev;
195 wrk->prev->next = wrk->next;
196
197 free (wrk);
198}
199
200static volatile unsigned int nreqs, nready, npending;
201static volatile unsigned int max_outstanding = 0xffffffff;
202static int respipe [2];
203
204static pthread_mutex_t reslock = AIO_MUTEX_INIT;
205static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
206static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
207
208#if WORDREAD_UNSAFE
209
210static unsigned int get_nready ()
211{
212 unsigned int retval;
213
214 LOCK (reqlock);
215 retval = nready;
216 UNLOCK (reqlock);
217
218 return retval;
219}
220
221static unsigned int get_npending ()
222{
223 unsigned int retval;
224
225 LOCK (reslock);
226 retval = npending;
227 UNLOCK (reslock);
228
229 return retval;
230}
231
232#else
233
234# define get_nready() nready
235# define get_npending() npending
236
237#endif
238
239/*
240 * a somewhat faster data structure might be nice, but
241 * with 8 priorities this actually needs <20 insns
242 * per shift, the most expensive operation.
243 */
244typedef struct {
245 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
246 int size;
247} reqq;
248
249static reqq req_queue;
250static reqq res_queue;
251
252int reqq_push (reqq *q, aio_req req)
253{
254 int pri = req->pri;
255 req->next = 0;
256
257 if (q->qe[pri])
258 {
259 q->qe[pri]->next = req;
260 q->qe[pri] = req;
261 }
262 else
263 q->qe[pri] = q->qs[pri] = req;
264
265 return q->size++;
266}
267
268aio_req reqq_shift (reqq *q)
269{
270 int pri;
271
272 if (!q->size)
273 return 0; 360 return;
274 361
275 --q->size; 362 if (!incmap->fm_mapped_extents)
363 goto done;
276 364
277 for (pri = NUM_PRI; pri--; ) 365 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
278 { 366 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
279 aio_req req = q->qs[pri]; 367 errno = ENOMEM;
280
281 if (req) 368 if (!fiemap)
369 return;
370
371 req->ptr1 = fiemap;
372
373 for (count = 0; count < incmap->fm_mapped_extents; ++count)
282 { 374 {
283 if (!(q->qs[pri] = req->next)) 375 struct fiemap_extent *e = incmap->fm_extents + count;
284 q->qe[pri] = 0;
285 376
286 return req; 377 if (e->fe_logical + e->fe_length >= end_offset)
378 goto done;
379
380 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
381
382 if (e->fe_flags & FIEMAP_EXTENT_LAST)
383 goto done;
384
287 } 385 }
288 } 386 }
289 387
290 abort (); 388done:
291} 389 req->result = 0;
292 390
293static int poll_cb (int max); 391#else
294static void req_invoke (aio_req req); 392 errno = ENOSYS;
393#endif
394}
395
396/*****************************************************************************/
397
398enum {
399 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
400};
401
402typedef eio_req *aio_req;
403typedef eio_req *aio_req_ornot;
404typedef eio_wd aio_wd;
405
406static SV *on_next_submit;
407static int next_pri = EIO_PRI_DEFAULT;
408static int max_outstanding;
409
410static s_epipe respipe;
411
295static void req_free (aio_req req); 412static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 413static void req_cancel (aio_req req);
297 414
415static void
416want_poll (void)
417{
418 /* write a dummy byte to the pipe so fh becomes ready */
419 s_epipe_signal (&respipe);
420}
421
422static void
423done_poll (void)
424{
425 /* read any signals sent by the worker threads */
426 s_epipe_drain (&respipe);
427}
428
298/* must be called at most once */ 429/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 430static SV *
431req_sv (aio_req req, HV *stash)
300{ 432{
301 if (!req->self) 433 if (!req->self)
302 { 434 {
303 req->self = (SV *)newHV (); 435 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 436 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 437 }
306 438
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 439 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 440}
309 441
310static aio_req SvAIO_REQ (SV *sv) 442static SV *
443newSVaio_wd (aio_wd wd)
444{
445 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
446}
447
448static aio_req
449SvAIO_REQ (SV *sv)
311{ 450{
312 MAGIC *mg; 451 MAGIC *mg;
313 452
314 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 453 if (!SvROK (sv)
454 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
455 || (SvSTASH (SvRV (sv)) != aio_grp_stash
456 && SvSTASH (SvRV (sv)) != aio_req_stash
457 && !sv_derived_from (sv, "IO::AIO::REQ")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 458 croak ("object of class IO::AIO::REQ expected");
316 459
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 460 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 461
319 return mg ? (aio_req)mg->mg_ptr : 0; 462 return mg ? (aio_req)mg->mg_ptr : 0;
320} 463}
321 464
465static aio_wd
466SvAIO_WD (SV *sv)
467{
468 if (!SvROK (sv)
469 || SvTYPE (SvRV (sv)) != SVt_PVMG
470 || SvSTASH (SvRV (sv)) != aio_wd_stash)
471 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
472
473 return (aio_wd)(long)SvIVX (SvRV (sv));
474}
475
476static SV *
477newmortalFH (int fd, int flags)
478{
479 if (fd < 0)
480 return &PL_sv_undef;
481
482 GV *gv = (GV *)sv_newmortal ();
483 char sym[64];
484 int symlen;
485
486 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
487 gv_init (gv, aio_stash, sym, symlen, 0);
488
489 symlen = snprintf (
490 sym,
491 sizeof (sym),
492 "%s&=%d",
493 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494 fd
495 );
496
497 return do_open (gv, sym, symlen, 0, 0, 0, 0)
498 ? (SV *)gv : &PL_sv_undef;
499}
500
501static void
322static void aio_grp_feed (aio_req grp) 502aio_grp_feed (aio_req grp)
323{ 503{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 504 if (grp->sv2 && SvOK (grp->sv2))
325 { 505 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 506 dSP;
331 507
332 ENTER; 508 ENTER;
333 SAVETMPS; 509 SAVETMPS;
334 PUSHMARK (SP); 510 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 511 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 512 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 513 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 514 SPAGAIN;
339 FREETMPS; 515 FREETMPS;
340 LEAVE; 516 LEAVE;
341 }
342
343 /* stop if no progress has been made */
344 if (old_len == grp->length)
345 {
346 SvREFCNT_dec (grp->fh2);
347 grp->fh2 = 0;
348 break;
349 }
350 } 517 }
351} 518}
352 519
353static void aio_grp_dec (aio_req grp) 520static void
521req_submit (eio_req *req)
354{ 522{
355 --grp->length; 523 eio_submit (req);
356 524
357 /* call feeder, if applicable */ 525 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 526 {
363 req_invoke (grp); 527 dSP;
364 req_free (grp); 528 SV *cb = sv_2mortal (on_next_submit);
529
530 on_next_submit = 0;
531
532 PUSHMARK (SP);
533 PUTBACK;
534 call_sv (cb, G_DISCARD | G_EVAL);
365 } 535 }
366} 536}
367 537
538static int
368static void req_invoke (aio_req req) 539req_invoke (eio_req *req)
369{ 540{
370 dSP; 541 if (req->flags & FLAG_SV2_RO_OFF)
542 SvREADONLY_off (req->sv2);
371 543
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 544 if (!EIO_CANCELLED (req) && req->callback)
373 { 545 {
546 dSP;
547 static SV *sv_result_cache; /* caches the result integer SV */
548 SV *sv_result;
549
374 ENTER; 550 ENTER;
375 SAVETMPS; 551 SAVETMPS;
376 PUSHMARK (SP); 552 PUSHMARK (SP);
377 EXTEND (SP, 1); 553 EXTEND (SP, 1);
378 554
555 /* do not recreate the result IV from scratch each time */
556 if (expect_true (sv_result_cache))
557 {
558 sv_result = sv_result_cache; sv_result_cache = 0;
559 SvIV_set (sv_result, req->result);
560 SvIOK_only (sv_result);
561 }
562 else
563 {
564 sv_result = newSViv (req->result);
565 SvREADONLY_on (sv_result);
566 }
567
379 switch (req->type) 568 switch (req->type)
380 { 569 {
570 case EIO_WD_OPEN:
571 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
572 break;
573
381 case REQ_READDIR: 574 case EIO_READDIR:
382 { 575 {
383 SV *rv = &PL_sv_undef; 576 SV *rv = &PL_sv_undef;
384 577
385 if (req->result >= 0) 578 if (req->result >= 0)
386 { 579 {
387 int i; 580 int i;
388 char *buf = req->data2ptr; 581 char *names = (char *)req->ptr2;
582 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 583 AV *av = newAV ();
390 584
391 av_extend (av, req->result - 1); 585 av_extend (av, req->result - 1);
392 586
393 for (i = 0; i < req->result; ++i) 587 for (i = 0; i < req->result; ++i)
394 { 588 {
395 SV *sv = newSVpv (buf, 0); 589 if (req->int1 & EIO_READDIR_DENTS)
590 {
591 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 592
593 if (req->int1 & EIO_READDIR_CUSTOM2)
594 {
595 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
596 AV *avent = newAV ();
597
598 av_extend (avent, 2);
599
600 if (!sv_type [ent->type])
601 {
602 sv_type [ent->type] = newSViv (ent->type);
603 SvREADONLY_on (sv_type [ent->type]);
604 }
605
606 av_store (avent, 0, namesv);
607 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
608 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
609
610 av_store (av, i, newRV_noinc ((SV *)avent));
611 }
612 else
397 av_store (av, i, sv); 613 av_store (av, i, namesv);
614
615 ++ent;
616 }
617 else
618 {
619 SV *name = newSVpv (names, 0);
620 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 621 names += SvCUR (name) + 1;
622 }
399 } 623 }
400 624
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 625 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 626 }
403 627
404 PUSHs (rv); 628 PUSHs (rv);
629
630 if (req->int1 & EIO_READDIR_CUSTOM1)
631 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
405 } 632 }
406 break; 633 break;
407 634
408 case REQ_OPEN: 635 case EIO_OPEN:
636 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
637 break;
638
639 case EIO_STATVFS:
640 case EIO_FSTATVFS:
409 { 641 {
410 /* convert fd to fh */ 642 SV *rv = &PL_sv_undef;
411 SV *fh; 643
644#ifndef _WIN32
645 if (req->result >= 0)
646 {
647 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
648 HV *hv = newHV ();
649 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
650 * chooses to make it a struct.
651 */
652 unsigned long fsid = 0;
653 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
412 654
413 PUSHs (sv_2mortal (newSViv (req->result))); 655 rv = sv_2mortal (newRV_noinc ((SV *)hv));
414 PUTBACK;
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
416 SPAGAIN;
417 656
418 fh = SvREFCNT_inc (POPs); 657 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
658 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
659 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
660 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
661 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
662 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
663 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
664 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
665 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
666 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
667 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
668 }
669#endif
419 670
420 PUSHMARK (SP); 671 PUSHs (rv);
421 XPUSHs (sv_2mortal (fh));
422 } 672 }
673
423 break; 674 break;
424 675
425 case REQ_GROUP: 676 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 677 req->int1 = 2; /* mark group as finished */
427 678
428 if (req->data) 679 if (req->sv1)
429 { 680 {
430 int i; 681 int i;
431 AV *av = (AV *)req->data; 682 AV *av = (AV *)req->sv1;
432 683
433 EXTEND (SP, AvFILL (av) + 1); 684 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 685 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 686 PUSHs (*av_fetch (av, i, 0));
436 } 687 }
437 break; 688 break;
438 689
439 case REQ_NOP: 690 case EIO_NOP:
440 case REQ_BUSY: 691 case EIO_BUSY:
441 break; 692 break;
442 693
694 case EIO_READLINK:
695 case EIO_REALPATH:
696 if (req->result > 0)
697 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
698 break;
699
700 case EIO_STAT:
701 case EIO_LSTAT:
702 case EIO_FSTAT:
703 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
704
705 if (!(PL_laststatval = req->result))
706 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
707 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
708
709 PUSHs (sv_result);
710 break;
711
712 case EIO_SEEK:
713 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
714 break;
715
716 case EIO_READ:
717 {
718 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
719 *SvEND (req->sv2) = 0;
720 SvPOK_only (req->sv2);
721 SvSETMAGIC (req->sv2);
722 PUSHs (sv_result);
723 }
724 break;
725
726 case EIO_SLURP:
727 {
728 if (req->result >= 0)
729 {
730 /* if length was originally not known, we steal the malloc'ed memory */
731 if (req->flags & EIO_FLAG_PTR2_FREE)
732 {
733 req->flags &= ~EIO_FLAG_PTR2_FREE;
734 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
735 }
736 else
737 {
738 SvCUR_set (req->sv2, req->result);
739 *SvEND (req->sv2) = 0;
740 SvPOK_only (req->sv2);
741 }
742
743 SvSETMAGIC (req->sv2);
744 }
745
746 PUSHs (sv_result);
747 }
748 break;
749
750 case EIO_CUSTOM:
751 if (req->feed == fiemap)
752 {
753#if HAVE_FIEMAP
754 if (!req->result)
755 {
756 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
757
758 if (fiemap->fm_extent_count)
759 {
760 AV *av = newAV ();
761 int i;
762
763 while (fiemap->fm_mapped_extents)
764 {
765 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
766 AV *ext_av = newAV ();
767
768 av_store (ext_av, 3, newSVuv (extent->fe_flags));
769 av_store (ext_av, 2, newSVval64 (extent->fe_length));
770 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
771 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
772
773 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
774 }
775
776 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
777 }
778 else
779 {
780 SvIV_set (sv_result, fiemap->fm_mapped_extents);
781 PUSHs (sv_result);
782 }
783 }
784#endif
785 }
786 else
787 PUSHs (sv_result);
788 break;
789
790 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
791 if (req->result > 0)
792 SvIV_set (sv_result, 0);
793 /* FALLTHROUGH */
794
443 default: 795 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 796 PUSHs (sv_result);
445 break; 797 break;
446 } 798 }
447 799
448 errno = req->errorno; 800 errno = req->errorno;
449 801
450 PUTBACK; 802 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 803 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 804 SPAGAIN;
805
806 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
807 SvREFCNT_dec (sv_result);
808 else
809 sv_result_cache = sv_result;
453 810
454 FREETMPS; 811 FREETMPS;
455 LEAVE; 812 LEAVE;
813
814 PUTBACK;
456 } 815 }
457 816
458 if (req->grp) 817 return !!SvTRUE (ERRSV);
459 {
460 aio_req grp = req->grp;
461
462 /* unlink request */
463 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
464 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
465
466 if (grp->grp_first == req)
467 grp->grp_first = req->grp_next;
468
469 aio_grp_dec (grp);
470 }
471
472 if (SvTRUE (ERRSV))
473 {
474 req_free (req);
475 croak (0);
476 }
477} 818}
478 819
479static void req_free (aio_req req) 820static void
821req_destroy (aio_req req)
480{ 822{
481 if (req->self) 823 if (req->self)
482 { 824 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 825 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 826 SvREFCNT_dec (req->self);
485 } 827 }
486 828
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 829 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 830 SvREFCNT_dec (req->sv2);
831 SvREFCNT_dec (req->sv3);
832 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 833 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 834
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 835 free (req);
497} 836}
498 837
838static void
499static void req_cancel_subs (aio_req grp) 839req_cancel_subs (aio_req grp)
500{ 840{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 841 if (grp->type != EIO_GROUP)
504 return; 842 return;
505 843
506 SvREFCNT_dec (grp->fh2); 844 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 845 grp->sv2 = 0;
508 846
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 847 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 848}
512 849
513static void req_cancel (aio_req req) 850static void ecb_cold
851create_respipe (void)
514{ 852{
515 req->flags |= FLAG_CANCELLED; 853 if (s_epipe_renew (&respipe))
516 854 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 855}
519 856
520static void *aio_proc(void *arg); 857static void
521 858poll_wait (void)
522static void start_thread (void)
523{ 859{
524 sigset_t fullsigset, oldsigset;
525 pthread_attr_t attr;
526
527 worker *wrk = calloc (1, sizeof (worker));
528
529 if (!wrk)
530 croak ("unable to allocate worker thread data");
531
532 pthread_attr_init (&attr);
533 pthread_attr_setstacksize (&attr, STACKSIZE);
534 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535#ifdef PTHREAD_SCOPE_PROCESS
536 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537#endif
538
539 sigfillset (&fullsigset);
540
541 LOCK (wrklock);
542 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543
544 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
545 {
546 wrk->prev = &wrk_first;
547 wrk->next = wrk_first.next;
548 wrk_first.next->prev = wrk;
549 wrk_first.next = wrk;
550 ++started;
551 }
552 else
553 free (wrk);
554
555 sigprocmask (SIG_SETMASK, &oldsigset, 0);
556 UNLOCK (wrklock);
557}
558
559static void maybe_start_thread ()
560{
561#if 0
562 static struct timeval last;
563 struct timeval diff, now;
564#endif
565
566 if (started >= wanted)
567 return;
568
569 if (nready <= nreqs - get_nready () - get_npending ())
570 return;
571
572#if 0
573 gettimeofday (&now, 0);
574
575 diff.tv_sec = now.tv_sec - last.tv_sec;
576 diff.tv_usec = now.tv_usec - last.tv_usec;
577
578 if (diff.tv_usec < 0)
579 {
580 --diff.tv_sec;
581 diff.tv_usec += 1000000;
582 }
583
584 if (!diff.tv_sec && diff.tv_usec < 10000)
585 return;
586
587 last = now;
588#endif
589
590 start_thread ();
591}
592
593static void req_send (aio_req req)
594{
595 ++nreqs;
596
597 LOCK (reqlock);
598 ++nready;
599 reqq_push (&req_queue, req);
600 pthread_cond_signal (&reqwait);
601 UNLOCK (reqlock);
602
603 maybe_start_thread ();
604}
605
606static void end_thread (void)
607{
608 aio_req req;
609
610 Newz (0, req, 1, aio_cb);
611
612 req->type = REQ_QUIT;
613 req->pri = PRI_MAX + PRI_BIAS;
614
615 req_send (req);
616
617 LOCK (wrklock);
618 --started;
619 UNLOCK (wrklock);
620}
621
622static void min_parallel (int nthreads)
623{
624 if (wanted < nthreads)
625 wanted = nthreads;
626}
627
628static void max_parallel (int nthreads)
629{
630 if (wanted > nthreads)
631 wanted = nthreads;
632
633 while (started > wanted)
634 end_thread ();
635}
636
637static void poll_wait ()
638{
639 fd_set rfd;
640
641 while (nreqs) 860 while (eio_nreqs ())
642 { 861 {
643 int size; 862 int size;
644 if (WORDREAD_UNSAFE) LOCK (reslock); 863
864 X_LOCK (EIO_POOL->reslock);
645 size = res_queue.size; 865 size = EIO_POOL->res_queue.size;
646 if (WORDREAD_UNSAFE) UNLOCK (reslock); 866 X_UNLOCK (EIO_POOL->reslock);
647 867
648 if (size) 868 if (size)
649 return; 869 return;
650 870
651 maybe_start_thread (); 871 etp_maybe_start_thread (EIO_POOL);
652 872
653 FD_ZERO(&rfd); 873 s_epipe_wait (&respipe);
654 FD_SET(respipe [0], &rfd);
655
656 select (respipe [0] + 1, &rfd, 0, 0, 0);
657 } 874 }
658} 875}
659 876
660static int poll_cb (int max) 877static int
878poll_cb (void)
661{ 879{
662 dSP;
663 int count = 0;
664 int do_croak = 0;
665 aio_req req;
666
667 for (;;) 880 for (;;)
668 { 881 {
669 while (max <= 0 || count < max) 882 int res = eio_poll ();
883
884 if (res > 0)
885 croak (0);
886
887 if (!max_outstanding || max_outstanding > eio_nreqs ())
888 return res;
889
890 poll_wait ();
891 }
892}
893
894static void ecb_cold
895reinit (void)
896{
897 create_respipe ();
898
899 if (eio_init (want_poll, done_poll) < 0)
900 croak ("IO::AIO: unable to initialise eio library");
901}
902
903/*****************************************************************************/
904
905static SV *
906get_cb (SV *cb_sv)
907{
908 SvGETMAGIC (cb_sv);
909 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
910}
911
912static aio_req ecb_noinline
913dreq (SV *callback)
914{
915 SV *cb_cv;
916 aio_req req;
917 int req_pri = next_pri;
918 next_pri = EIO_PRI_DEFAULT;
919
920 cb_cv = get_cb (callback);
921
922 req = calloc (sizeof (*req), 1);
923 if (!req)
924 croak ("out of memory during eio_req allocation");
925
926 req->callback = SvREFCNT_inc (cb_cv);
927 req->pri = req_pri;
928
929 return req;
930}
931
932#define dREQ \
933 aio_req req = dreq (callback); \
934
935#define REQ_SEND \
936 PUTBACK; \
937 req_submit (req); \
938 SPAGAIN; \
939 \
940 if (GIMME_V != G_VOID) \
941 XPUSHs (req_sv (req, aio_req_stash));
942
943ecb_inline void
944req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
945{
946 if (expect_false (SvROK (path)))
947 {
948 SV *rv = SvRV (path);
949 SV *wdob;
950
951 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
670 { 952 {
671 maybe_start_thread (); 953 path = AvARRAY (rv)[1];
954 wdob = AvARRAY (rv)[0];
672 955
673 LOCK (reslock); 956 if (SvOK (wdob))
674 req = reqq_shift (&res_queue);
675
676 if (req)
677 { 957 {
678 --npending; 958 *wd = SvAIO_WD (wdob);
679 959 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
680 if (!res_queue.size)
681 {
682 /* read any signals sent by the worker threads */
683 char buf [32];
684 while (read (respipe [0], buf, 32) == 32)
685 ;
686 }
687 }
688
689 UNLOCK (reslock);
690
691 if (!req)
692 break;
693
694 --nreqs;
695
696 if (req->type == REQ_GROUP && req->length)
697 {
698 req->fd = 1; /* mark request as delayed */
699 continue;
700 } 960 }
701 else 961 else
702 { 962 *wd = EIO_INVALID_WD;
703 if (req->type == REQ_READ)
704 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707 SvREADONLY_off (req->data);
708
709 if (req->statdata)
710 {
711 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
712 PL_laststatval = req->result;
713 PL_statcache = *(req->statdata);
714 }
715
716 req_invoke (req);
717
718 count++;
719 }
720
721 req_free (req);
722 } 963 }
964 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
965 {
966 *wd = (aio_wd)(long)SvIVX (rv);
967 *wdsv = SvREFCNT_inc_NN (rv);
968 *ptr = ".";
969 return; /* path set to "." */
970 }
971 else
972 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
973 }
723 974
724 if (nreqs <= max_outstanding) 975 *pathsv = newSVsv (path);
976 *ptr = SvPVbyte_nolen (*pathsv);
977}
978
979static void ecb_noinline
980req_set_path1 (aio_req req, SV *path)
981{
982 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
983}
984
985static void ecb_noinline
986req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
987{
988 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
989
990 switch (SvTYPE (rv))
991 {
992 case SVt_PVIO:
993 case SVt_PVLV:
994 case SVt_PVGV:
995 req->type = type_fh;
996 req->sv1 = newSVsv (fh_or_path);
997 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725 break; 998 break;
726 999
727 poll_wait (); 1000 default:
728 1001 req->type = type_path;
729 max = 0; 1002 req_set_path1 (req, fh_or_path);
1003 break;
730 } 1004 }
731
732 return count;
733}
734
735static void create_pipe ()
736{
737 if (pipe (respipe))
738 croak ("unable to initialize result pipe");
739
740 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741 croak ("cannot set result pipe to nonblocking mode");
742
743 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745} 1005}
746 1006
747/*****************************************************************************/ 1007/*****************************************************************************/
748/* work around various missing functions */
749 1008
750#if !HAVE_PREADWRITE 1009static void
751# define pread aio_pread 1010ts_set (struct timespec *ts, NV value)
752# define pwrite aio_pwrite
753
754/*
755 * make our pread/pwrite safe against themselves, but not against
756 * normal read/write by using a mutex. slows down execution a lot,
757 * but that's your problem, not mine.
758 */
759static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
760
761static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
762{ 1011{
763 ssize_t res; 1012 ts->tv_sec = value;
764 off_t ooffset; 1013 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
765
766 LOCK (preadwritelock);
767 ooffset = lseek (fd, 0, SEEK_CUR);
768 lseek (fd, offset, SEEK_SET);
769 res = read (fd, buf, count);
770 lseek (fd, ooffset, SEEK_SET);
771 UNLOCK (preadwritelock);
772
773 return res;
774} 1014}
775 1015
776static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1016static NV
1017ts_get (const struct timespec *ts)
777{ 1018{
778 ssize_t res; 1019 return ts->tv_sec + ts->tv_nsec * 1e-9;
779 off_t ooffset;
780
781 LOCK (preadwritelock);
782 ooffset = lseek (fd, 0, SEEK_CUR);
783 lseek (fd, offset, SEEK_SET);
784 res = write (fd, buf, count);
785 lseek (fd, offset, SEEK_SET);
786 UNLOCK (preadwritelock);
787
788 return res;
789}
790#endif
791
792#if !HAVE_FDATASYNC
793# define fdatasync fsync
794#endif
795
796#if !HAVE_READAHEAD
797# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798
799static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
800{
801 dBUF;
802
803 while (count > 0)
804 {
805 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
806
807 pread (fd, aio_buf, len, offset);
808 offset += len;
809 count -= len;
810 }
811
812 errno = 0;
813}
814
815#endif
816
817#if !HAVE_READDIR_R
818# define readdir_r aio_readdir_r
819
820static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
821
822static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
823{
824 struct dirent *e;
825 int errorno;
826
827 LOCK (readdirlock);
828
829 e = readdir (dirp);
830 errorno = errno;
831
832 if (e)
833 {
834 *res = ent;
835 strcpy (ent->d_name, e->d_name);
836 }
837 else
838 *res = 0;
839
840 UNLOCK (readdirlock);
841
842 errno = errorno;
843 return e ? 0 : -1;
844}
845#endif
846
847/* sendfile always needs emulation */
848static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
849{
850 ssize_t res;
851
852 if (!count)
853 return 0;
854
855#if HAVE_SENDFILE
856# if __linux
857 res = sendfile (ofd, ifd, &offset, count);
858
859# elif __freebsd
860 /*
861 * Of course, the freebsd sendfile is a dire hack with no thoughts
862 * wasted on making it similar to other I/O functions.
863 */
864 {
865 off_t sbytes;
866 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
867
868 if (res < 0 && sbytes)
869 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
870 res = sbytes;
871 }
872
873# elif __hpux
874 res = sendfile (ofd, ifd, offset, count, 0, 0);
875
876# elif __solaris
877 {
878 struct sendfilevec vec;
879 size_t sbytes;
880
881 vec.sfv_fd = ifd;
882 vec.sfv_flag = 0;
883 vec.sfv_off = offset;
884 vec.sfv_len = count;
885
886 res = sendfilev (ofd, &vec, 1, &sbytes);
887
888 if (res < 0 && sbytes)
889 res = sbytes;
890 }
891
892# endif
893#else
894 res = -1;
895 errno = ENOSYS;
896#endif
897
898 if (res < 0
899 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
900#if __solaris
901 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
902#endif
903 )
904 )
905 {
906 /* emulate sendfile. this is a major pain in the ass */
907 dBUF;
908
909 res = 0;
910
911 while (count)
912 {
913 ssize_t cnt;
914
915 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
916
917 if (cnt <= 0)
918 {
919 if (cnt && !res) res = -1;
920 break;
921 }
922
923 cnt = write (ofd, aio_buf, cnt);
924
925 if (cnt <= 0)
926 {
927 if (cnt && !res) res = -1;
928 break;
929 }
930
931 offset += cnt;
932 res += cnt;
933 count -= cnt;
934 }
935 }
936
937 return res;
938}
939
940/* read a full directory */
941static void scandir_ (aio_req req, worker *self)
942{
943 DIR *dirp;
944 union
945 {
946 struct dirent d;
947 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
948 } *u;
949 struct dirent *entp;
950 char *name, *names;
951 int memlen = 4096;
952 int memofs = 0;
953 int res = 0;
954 int errorno;
955
956 LOCK (wrklock);
957 self->dirp = dirp = opendir (req->dataptr);
958 self->dbuf = u = malloc (sizeof (*u));
959 req->data2ptr = names = malloc (memlen);
960 UNLOCK (wrklock);
961
962 if (dirp && u && names)
963 for (;;)
964 {
965 errno = 0;
966 readdir_r (dirp, &u->d, &entp);
967
968 if (!entp)
969 break;
970
971 name = entp->d_name;
972
973 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
974 {
975 int len = strlen (name) + 1;
976
977 res++;
978
979 while (memofs + len > memlen)
980 {
981 memlen *= 2;
982 LOCK (wrklock);
983 req->data2ptr = names = realloc (names, memlen);
984 UNLOCK (wrklock);
985
986 if (!names)
987 break;
988 }
989
990 memcpy (names + memofs, name, len);
991 memofs += len;
992 }
993 }
994
995 if (errno)
996 res = -1;
997
998 req->result = res;
999} 1020}
1000 1021
1001/*****************************************************************************/ 1022/*****************************************************************************/
1002 1023
1003static void *aio_proc (void *thr_arg) 1024XS(boot_IO__AIO) ecb_cold;
1004{
1005 aio_req req;
1006 worker *self = (worker *)thr_arg;
1007 1025
1008 for (;;)
1009 {
1010 LOCK (reqlock);
1011
1012 for (;;)
1013 {
1014 self->req = req = reqq_shift (&req_queue);
1015
1016 if (req)
1017 break;
1018
1019 pthread_cond_wait (&reqwait, &reqlock);
1020 }
1021
1022 --nready;
1023
1024 UNLOCK (reqlock);
1025
1026 errno = 0; /* strictly unnecessary */
1027
1028 if (!(req->flags & FLAG_CANCELLED))
1029 switch (req->type)
1030 {
1031 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1032 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1033
1034 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1035 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1036
1037 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1038 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1039 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1040
1041 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1042 case REQ_CLOSE: req->result = close (req->fd); break;
1043 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1044 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1045 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1046 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1047 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1048 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1049
1050 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1051 case REQ_FSYNC: req->result = fsync (req->fd); break;
1052 case REQ_READDIR: scandir_ (req, self); break;
1053
1054 case REQ_BUSY:
1055 {
1056 struct timeval tv;
1057
1058 tv.tv_sec = req->fd;
1059 tv.tv_usec = req->fd2;
1060
1061 req->result = select (0, 0, 0, 0, &tv);
1062 }
1063
1064 case REQ_GROUP:
1065 case REQ_NOP:
1066 break;
1067
1068 case REQ_QUIT:
1069 LOCK (wrklock);
1070 worker_free (self);
1071 --started;
1072 UNLOCK (wrklock);
1073 return 0;
1074
1075 default:
1076 req->result = ENOSYS;
1077 break;
1078 }
1079
1080 req->errorno = errno;
1081
1082 LOCK (reslock);
1083
1084 ++npending;
1085
1086 if (!reqq_push (&res_queue, req))
1087 /* write a dummy byte to the pipe so fh becomes ready */
1088 write (respipe [1], &respipe, 1);
1089
1090 self->req = 0;
1091 worker_clear (self);
1092
1093 UNLOCK (reslock);
1094 }
1095}
1096
1097/*****************************************************************************/
1098
1099static void atfork_prepare (void)
1100{
1101 LOCK (wrklock);
1102 LOCK (reqlock);
1103 LOCK (reslock);
1104#if !HAVE_PREADWRITE
1105 LOCK (preadwritelock);
1106#endif
1107#if !HAVE_READDIR_R
1108 LOCK (readdirlock);
1109#endif
1110}
1111
1112static void atfork_parent (void)
1113{
1114#if !HAVE_READDIR_R
1115 UNLOCK (readdirlock);
1116#endif
1117#if !HAVE_PREADWRITE
1118 UNLOCK (preadwritelock);
1119#endif
1120 UNLOCK (reslock);
1121 UNLOCK (reqlock);
1122 UNLOCK (wrklock);
1123}
1124
1125static void atfork_child (void)
1126{
1127 aio_req prv;
1128
1129 while (prv = reqq_shift (&req_queue))
1130 req_free (prv);
1131
1132 while (prv = reqq_shift (&res_queue))
1133 req_free (prv);
1134
1135 while (wrk_first.next != &wrk_first)
1136 {
1137 worker *wrk = wrk_first.next;
1138
1139 if (wrk->req)
1140 req_free (wrk->req);
1141
1142 worker_clear (wrk);
1143 worker_free (wrk);
1144 }
1145
1146 started = 0;
1147 nreqs = 0;
1148
1149 close (respipe [0]);
1150 close (respipe [1]);
1151 create_pipe ();
1152
1153 atfork_parent ();
1154}
1155
1156#define dREQ \
1157 aio_req req; \
1158 int req_pri = next_pri; \
1159 next_pri = DEFAULT_PRI + PRI_BIAS; \
1160 \
1161 if (SvOK (callback) && !SvROK (callback)) \
1162 croak ("callback must be undef or of reference type"); \
1163 \
1164 Newz (0, req, 1, aio_cb); \
1165 if (!req) \
1166 croak ("out of memory during aio_req allocation"); \
1167 \
1168 req->callback = newSVsv (callback); \
1169 req->pri = req_pri
1170
1171#define REQ_SEND \
1172 req_send (req); \
1173 \
1174 if (GIMME_V != G_VOID) \
1175 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1176
1177MODULE = IO::AIO PACKAGE = IO::AIO 1026MODULE = IO::AIO PACKAGE = IO::AIO
1178 1027
1179PROTOTYPES: ENABLE 1028PROTOTYPES: ENABLE
1180 1029
1181BOOT: 1030BOOT:
1182{ 1031{
1032 static const struct {
1033 const char *name;
1034 IV iv;
1035 } *civ, const_iv[] = {
1036# define const_niv(name, value) { # name, (IV) value },
1037# define const_iv(name) { # name, (IV) name },
1038# define const_eio(name) { # name, (IV) EIO_ ## name },
1039
1040 /* you have to re-run ./gendef0 after adding/removing any constants here */
1041 /* the first block can be undef if missing */
1042 const_iv (ENOSYS)
1043 const_iv (EXDEV)
1044 const_iv (EBADR)
1045
1046 /* for lseek */
1047 const_iv (SEEK_DATA)
1048 const_iv (SEEK_HOLE)
1049
1050 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1051 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1052 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1053 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1054 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1055 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1056
1057 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1058 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1059 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1060 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1061 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1062
1063 /* the second block will be 0 when missing */
1064 const_iv (O_ACCMODE)
1065
1066 const_iv (O_RDONLY)
1067 const_iv (O_WRONLY)
1068 const_iv (O_RDWR)
1069 const_iv (O_CREAT)
1070 const_iv (O_TRUNC)
1071 const_iv (O_EXCL)
1072 const_iv (O_APPEND)
1073
1074 const_iv (O_ASYNC)
1075 const_iv (O_DIRECT)
1076 const_iv (O_NOATIME)
1077
1078 const_iv (O_CLOEXEC)
1079 const_iv (O_NOCTTY)
1080 const_iv (O_NOFOLLOW)
1081 const_iv (O_NONBLOCK)
1082 const_iv (O_EXEC)
1083 const_iv (O_SEARCH)
1084 const_iv (O_DIRECTORY)
1085 const_iv (O_DSYNC)
1086 const_iv (O_RSYNC)
1087 const_iv (O_SYNC)
1088 const_iv (O_PATH)
1089 const_iv (O_TMPFILE)
1090 const_iv (O_TTY_INIT)
1091
1092 const_iv (S_IFIFO)
1093 const_iv (S_IFCHR)
1094 const_iv (S_IFBLK)
1095 const_iv (S_IFLNK)
1096 const_iv (S_IFREG)
1097 const_iv (S_IFDIR)
1098 const_iv (S_IFWHT)
1099 const_iv (S_IFSOCK)
1100 const_iv (S_IFMT)
1101
1102 const_iv (ST_RDONLY)
1103 const_iv (ST_NOSUID)
1104 const_iv (ST_NODEV)
1105 const_iv (ST_NOEXEC)
1106 const_iv (ST_SYNCHRONOUS)
1107 const_iv (ST_MANDLOCK)
1108 const_iv (ST_WRITE)
1109 const_iv (ST_APPEND)
1110 const_iv (ST_IMMUTABLE)
1111 const_iv (ST_NOATIME)
1112 const_iv (ST_NODIRATIME)
1113 const_iv (ST_RELATIME)
1114
1115 const_iv (PROT_NONE)
1116 const_iv (PROT_EXEC)
1117 const_iv (PROT_READ)
1118 const_iv (PROT_WRITE)
1119
1120 const_iv (MAP_PRIVATE)
1121 const_iv (MAP_SHARED)
1122 const_iv (MAP_FIXED)
1123 const_iv (MAP_ANONYMOUS)
1124
1125 /* linuxish */
1126 const_iv (MAP_LOCKED)
1127 const_iv (MAP_NORESERVE)
1128 const_iv (MAP_POPULATE)
1129 const_iv (MAP_NONBLOCK)
1130 const_iv (MAP_GROWSDOWN)
1131 const_iv (MAP_32BIT)
1132 const_iv (MAP_HUGETLB)
1133 const_iv (MAP_STACK)
1134
1135 const_iv (MREMAP_MAYMOVE)
1136 const_iv (MREMAP_FIXED)
1137
1138 const_iv (F_DUPFD_CLOEXEC)
1139
1140 const_iv (MSG_CMSG_CLOEXEC)
1141 const_iv (SOCK_CLOEXEC)
1142
1143 const_iv (F_OFD_GETLK)
1144 const_iv (F_OFD_SETLK)
1145 const_iv (F_OFD_GETLKW)
1146
1147 const_iv (FIFREEZE)
1148 const_iv (FITHAW)
1149 const_iv (FITRIM)
1150 const_iv (FICLONE)
1151 const_iv (FICLONERANGE)
1152 const_iv (FIDEDUPERANGE)
1153
1154 const_iv (FS_IOC_GETFLAGS)
1155 const_iv (FS_IOC_SETFLAGS)
1156 const_iv (FS_IOC_GETVERSION)
1157 const_iv (FS_IOC_SETVERSION)
1158 const_iv (FS_IOC_FIEMAP)
1159 const_iv (FS_IOC_FSGETXATTR)
1160 const_iv (FS_IOC_FSSETXATTR)
1161 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1162 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1163 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1164
1165 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1166
1167 const_iv (FS_SECRM_FL)
1168 const_iv (FS_UNRM_FL)
1169 const_iv (FS_COMPR_FL)
1170 const_iv (FS_SYNC_FL)
1171 const_iv (FS_IMMUTABLE_FL)
1172 const_iv (FS_APPEND_FL)
1173 const_iv (FS_NODUMP_FL)
1174 const_iv (FS_NOATIME_FL)
1175 const_iv (FS_DIRTY_FL)
1176 const_iv (FS_COMPRBLK_FL)
1177 const_iv (FS_NOCOMP_FL)
1178 const_iv (FS_ENCRYPT_FL)
1179 const_iv (FS_BTREE_FL)
1180 const_iv (FS_INDEX_FL)
1181 const_iv (FS_JOURNAL_DATA_FL)
1182 const_iv (FS_NOTAIL_FL)
1183 const_iv (FS_DIRSYNC_FL)
1184 const_iv (FS_TOPDIR_FL)
1185 const_iv (FS_FL_USER_MODIFIABLE)
1186
1187 const_iv (FS_XFLAG_REALTIME)
1188 const_iv (FS_XFLAG_PREALLOC)
1189 const_iv (FS_XFLAG_IMMUTABLE)
1190 const_iv (FS_XFLAG_APPEND)
1191 const_iv (FS_XFLAG_SYNC)
1192 const_iv (FS_XFLAG_NOATIME)
1193 const_iv (FS_XFLAG_NODUMP)
1194 const_iv (FS_XFLAG_RTINHERIT)
1195 const_iv (FS_XFLAG_PROJINHERIT)
1196 const_iv (FS_XFLAG_NOSYMLINKS)
1197 const_iv (FS_XFLAG_EXTSIZE)
1198 const_iv (FS_XFLAG_EXTSZINHERIT)
1199 const_iv (FS_XFLAG_NODEFRAG)
1200 const_iv (FS_XFLAG_FILESTREAM)
1201 const_iv (FS_XFLAG_DAX)
1202 const_iv (FS_XFLAG_HASATTR)
1203
1204 const_iv (FIEMAP_FLAG_SYNC)
1205 const_iv (FIEMAP_FLAG_XATTR)
1206 const_iv (FIEMAP_FLAGS_COMPAT)
1207 const_iv (FIEMAP_EXTENT_LAST)
1208 const_iv (FIEMAP_EXTENT_UNKNOWN)
1209 const_iv (FIEMAP_EXTENT_DELALLOC)
1210 const_iv (FIEMAP_EXTENT_ENCODED)
1211 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1212 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1213 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1214 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1215 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1216 const_iv (FIEMAP_EXTENT_MERGED)
1217 const_iv (FIEMAP_EXTENT_SHARED)
1218
1219 const_iv (SPLICE_F_MOVE)
1220 const_iv (SPLICE_F_NONBLOCK)
1221 const_iv (SPLICE_F_MORE)
1222 const_iv (SPLICE_F_GIFT)
1223
1224 const_iv (EFD_CLOEXEC)
1225 const_iv (EFD_NONBLOCK)
1226 const_iv (EFD_SEMAPHORE)
1227
1228 const_iv (CLOCK_REALTIME)
1229 const_iv (CLOCK_MONOTONIC)
1230 const_iv (CLOCK_BOOTTIME)
1231 const_iv (CLOCK_REALTIME_ALARM)
1232 const_iv (CLOCK_BOOTTIME_ALARM)
1233
1234 const_iv (TFD_NONBLOCK)
1235 const_iv (TFD_CLOEXEC)
1236
1237 const_iv (TFD_TIMER_ABSTIME)
1238 const_iv (TFD_TIMER_CANCEL_ON_SET)
1239
1240 /* these are libeio constants, and are independent of gendef0 */
1241 const_eio (SEEK_SET)
1242 const_eio (SEEK_CUR)
1243 const_eio (SEEK_END)
1244
1245 const_eio (MCL_FUTURE)
1246 const_eio (MCL_CURRENT)
1247
1248 const_eio (MS_ASYNC)
1249 const_eio (MS_INVALIDATE)
1250 const_eio (MS_SYNC)
1251
1252 const_eio (MT_MODIFY)
1253
1254 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1255 const_eio (SYNC_FILE_RANGE_WRITE)
1256 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1257
1258 const_eio (FALLOC_FL_KEEP_SIZE)
1259 const_eio (FALLOC_FL_PUNCH_HOLE)
1260 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1261 const_eio (FALLOC_FL_ZERO_RANGE)
1262 const_eio (FALLOC_FL_INSERT_RANGE)
1263 const_eio (FALLOC_FL_UNSHARE_RANGE)
1264
1265 const_eio (RENAME_NOREPLACE)
1266 const_eio (RENAME_EXCHANGE)
1267 const_eio (RENAME_WHITEOUT)
1268
1269 const_eio (READDIR_DENTS)
1270 const_eio (READDIR_DIRS_FIRST)
1271 const_eio (READDIR_STAT_ORDER)
1272 const_eio (READDIR_FOUND_UNKNOWN)
1273
1274 const_eio (DT_UNKNOWN)
1275 const_eio (DT_FIFO)
1276 const_eio (DT_CHR)
1277 const_eio (DT_DIR)
1278 const_eio (DT_BLK)
1279 const_eio (DT_REG)
1280 const_eio (DT_LNK)
1281 const_eio (DT_SOCK)
1282 const_eio (DT_WHT)
1283 };
1284
1183 HV *stash = gv_stashpv ("IO::AIO", 1); 1285 aio_stash = gv_stashpv ("IO::AIO" , 1);
1184 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1286 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1185 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1287 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1186 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1288 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1187 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1188 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1189 1289
1190 create_pipe (); 1290 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1191 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1291 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1192 1292
1193 start_thread (); 1293 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1194}
1195 1294
1295 reinit ();
1296}
1297
1196void 1298void
1197min_parallel (int nthreads) 1299reinit ()
1198 PROTOTYPE: $ 1300 PROTOTYPE:
1199 1301
1200void 1302void
1201max_parallel (int nthreads) 1303max_poll_reqs (unsigned int nreqs)
1202 PROTOTYPE: $
1203
1204int
1205max_outstanding (int maxreqs)
1206 PROTOTYPE: $ 1304 PROTOTYPE: $
1207 CODE: 1305 CODE:
1208 RETVAL = max_outstanding; 1306 eio_set_max_poll_reqs (nreqs);
1307
1308void
1309max_poll_time (double nseconds)
1310 PROTOTYPE: $
1311 CODE:
1312 eio_set_max_poll_time (nseconds);
1313
1314void
1315min_parallel (unsigned int nthreads)
1316 PROTOTYPE: $
1317 CODE:
1318 eio_set_min_parallel (nthreads);
1319
1320void
1321max_parallel (unsigned int nthreads)
1322 PROTOTYPE: $
1323 CODE:
1324 eio_set_max_parallel (nthreads);
1325
1326void
1327max_idle (unsigned int nthreads)
1328 PROTOTYPE: $
1329 CODE:
1330 eio_set_max_idle (nthreads);
1331
1332void
1333idle_timeout (unsigned int seconds)
1334 PROTOTYPE: $
1335 CODE:
1336 eio_set_idle_timeout (seconds);
1337
1338void
1339max_outstanding (unsigned int maxreqs)
1340 PROTOTYPE: $
1341 CODE:
1209 max_outstanding = maxreqs; 1342 max_outstanding = maxreqs;
1210 OUTPUT:
1211 RETVAL
1212 1343
1213void 1344void
1214aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1345aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1215 SV * pathname
1216 int flags
1217 int mode
1218 SV * callback
1219 PROTOTYPE: $$$;$
1220 PPCODE: 1346 PPCODE:
1221{ 1347{
1222 dREQ; 1348 dREQ;
1223 1349
1224 req->type = REQ_OPEN; 1350 req->type = EIO_WD_OPEN;
1225 req->data = newSVsv (pathname); 1351 req_set_path1 (req, pathname);
1226 req->dataptr = SvPVbyte_nolen (req->data);
1227 req->fd = flags;
1228 req->mode = mode;
1229 1352
1230 REQ_SEND; 1353 REQ_SEND;
1231} 1354}
1232 1355
1233void 1356void
1357aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 dREQ;
1361
1362 req->type = EIO_OPEN;
1363 req_set_path1 (req, pathname);
1364 req->int1 = flags;
1365 req->int2 = mode;
1366
1367 REQ_SEND;
1368}
1369
1370void
1234aio_close (fh,callback=&PL_sv_undef) 1371aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1235 SV * fh
1236 SV * callback
1237 PROTOTYPE: $;$
1238 ALIAS: 1372 ALIAS:
1239 aio_close = REQ_CLOSE
1240 aio_fsync = REQ_FSYNC 1373 aio_fsync = EIO_FSYNC
1241 aio_fdatasync = REQ_FDATASYNC 1374 aio_fdatasync = EIO_FDATASYNC
1375 aio_syncfs = EIO_SYNCFS
1242 PPCODE: 1376 PPCODE:
1243{ 1377{
1378 int fd = s_fileno_croak (fh, 0);
1244 dREQ; 1379 dREQ;
1245 1380
1246 req->type = ix; 1381 req->type = ix;
1247 req->fh = newSVsv (fh); 1382 req->sv1 = newSVsv (fh);
1248 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1383 req->int1 = fd;
1249 1384
1250 REQ_SEND (req); 1385 REQ_SEND;
1251} 1386}
1252 1387
1253void 1388void
1389aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1390 PPCODE:
1391{
1392 int fd = s_fileno_croak (fh, 0);
1393 dREQ;
1394
1395 req->type = EIO_SYNC_FILE_RANGE;
1396 req->sv1 = newSVsv (fh);
1397 req->int1 = fd;
1398 req->offs = offset;
1399 req->size = nbytes;
1400 req->int2 = flags;
1401
1402 REQ_SEND;
1403}
1404
1405void
1406aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 int fd = s_fileno_croak (fh, 0);
1410 dREQ;
1411
1412 req->type = EIO_FALLOCATE;
1413 req->sv1 = newSVsv (fh);
1414 req->int1 = fd;
1415 req->int2 = mode;
1416 req->offs = offset;
1417 req->size = len;
1418
1419 REQ_SEND;
1420}
1421
1422void
1423aio_close (SV *fh, SV *callback = &PL_sv_undef)
1424 PPCODE:
1425{
1426 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1427 int fd = s_fileno_croak (fh, 0);
1428 dREQ;
1429
1430 if (expect_false (close_fd < 0))
1431 {
1432 int pipefd [2];
1433
1434 if (
1435#ifdef _WIN32
1436 _pipe (pipefd, 1, _O_BINARY) < 0
1437#else
1438 pipe (pipefd) < 0
1439 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1440#endif
1441 || close (pipefd [1]) < 0
1442 )
1443 abort (); /*D*/
1444
1445 close_fd = pipefd [0];
1446 }
1447
1448 req->type = EIO_DUP2;
1449 req->int1 = close_fd;
1450 req->sv2 = newSVsv (fh);
1451 req->int2 = fd;
1452
1453 REQ_SEND;
1454}
1455
1456void
1457aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1458 PPCODE:
1459{
1460 int fd = s_fileno_croak (fh, 0);
1461 dREQ;
1462
1463 req->type = EIO_SEEK;
1464 req->sv1 = newSVsv (fh);
1465 req->int1 = fd;
1466 req->offs = SvVAL64 (offset);
1467 req->int2 = whence;
1468
1469 REQ_SEND;
1470}
1471
1472void
1254aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1473aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1255 SV * fh
1256 UV offset
1257 UV length
1258 SV * data
1259 UV dataoffset
1260 SV * callback
1261 ALIAS: 1474 ALIAS:
1262 aio_read = REQ_READ 1475 aio_read = EIO_READ
1263 aio_write = REQ_WRITE 1476 aio_write = EIO_WRITE
1264 PROTOTYPE: $$$$$;$
1265 PPCODE: 1477 PPCODE:
1266{ 1478{
1267 aio_req req;
1268 STRLEN svlen; 1479 STRLEN svlen;
1480 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1269 char *svptr = SvPVbyte (data, svlen); 1481 char *svptr = SvPVbyte (data, svlen);
1270 1482 UV len = SvUV (length);
1271 SvUPGRADE (data, SVt_PV);
1272 SvPOK_on (data);
1273 1483
1274 if (dataoffset < 0) 1484 if (dataoffset < 0)
1275 dataoffset += svlen; 1485 dataoffset += svlen;
1276 1486
1277 if (dataoffset < 0 || dataoffset > svlen) 1487 if (dataoffset < 0 || dataoffset > svlen)
1278 croak ("data offset outside of string"); 1488 croak ("dataoffset outside of data scalar");
1279 1489
1280 if (ix == REQ_WRITE) 1490 if (ix == EIO_WRITE)
1281 { 1491 {
1282 /* write: check length and adjust. */ 1492 /* write: check length and adjust. */
1283 if (length < 0 || length + dataoffset > svlen) 1493 if (!SvOK (length) || len + dataoffset > svlen)
1284 length = svlen - dataoffset; 1494 len = svlen - dataoffset;
1285 } 1495 }
1286 else 1496 else
1287 { 1497 {
1288 /* read: grow scalar as necessary */ 1498 /* read: check type and grow scalar as necessary */
1499 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1289 svptr = SvGROW (data, length + dataoffset); 1500 svptr = sv_grow (data, len + dataoffset + 1);
1501 else if (SvCUR (data) < len + dataoffset)
1502 croak ("length + dataoffset outside of scalar, and cannot grow");
1290 } 1503 }
1291
1292 if (length < 0)
1293 croak ("length must not be negative");
1294 1504
1295 { 1505 {
1296 dREQ; 1506 dREQ;
1297 1507
1298 req->type = ix; 1508 req->type = ix;
1299 req->fh = newSVsv (fh); 1509 req->sv1 = newSVsv (fh);
1300 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1510 req->int1 = fd;
1301 : IoOFP (sv_2io (fh))); 1511 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1302 req->offset = offset; 1512 req->size = len;
1303 req->length = length;
1304 req->data = SvREFCNT_inc (data); 1513 req->sv2 = SvREFCNT_inc (data);
1305 req->dataptr = (char *)svptr + dataoffset; 1514 req->ptr2 = (char *)svptr + dataoffset;
1515 req->stroffset = dataoffset;
1306 1516
1307 if (!SvREADONLY (data)) 1517 if (!SvREADONLY (data))
1308 { 1518 {
1309 SvREADONLY_on (data); 1519 SvREADONLY_on (data);
1310 req->data2ptr = (void *)data; 1520 req->flags |= FLAG_SV2_RO_OFF;
1311 } 1521 }
1312 1522
1313 REQ_SEND; 1523 REQ_SEND;
1314 } 1524 }
1315} 1525}
1316 1526
1317void 1527void
1318aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1528aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1319 SV * out_fh 1529 ALIAS:
1320 SV * in_fh 1530 aio_ioctl = EIO_IOCTL
1321 UV in_offset 1531 aio_fcntl = EIO_FCNTL
1322 UV length
1323 SV * callback
1324 PROTOTYPE: $$$$;$
1325 PPCODE: 1532 PPCODE:
1326{ 1533{
1327 dREQ; 1534 int fd = s_fileno_croak (fh, 0);
1535 char *svptr;
1328 1536
1329 req->type = REQ_SENDFILE; 1537 if (SvPOK (arg) || !SvNIOK (arg))
1330 req->fh = newSVsv (out_fh);
1331 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1332 req->fh2 = newSVsv (in_fh);
1333 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1334 req->offset = in_offset;
1335 req->length = length;
1336
1337 REQ_SEND;
1338}
1339
1340void
1341aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1342 SV * fh
1343 UV offset
1344 IV length
1345 SV * callback
1346 PROTOTYPE: $$$;$
1347 PPCODE:
1348{
1349 dREQ;
1350
1351 req->type = REQ_READAHEAD;
1352 req->fh = newSVsv (fh);
1353 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1354 req->offset = offset;
1355 req->length = length;
1356
1357 REQ_SEND;
1358}
1359
1360void
1361aio_stat (fh_or_path,callback=&PL_sv_undef)
1362 SV * fh_or_path
1363 SV * callback
1364 ALIAS:
1365 aio_stat = REQ_STAT
1366 aio_lstat = REQ_LSTAT
1367 PPCODE:
1368{
1369 dREQ;
1370
1371 New (0, req->statdata, 1, Stat_t);
1372 if (!req->statdata)
1373 { 1538 {
1374 req_free (req); 1539 STRLEN svlen;
1375 croak ("out of memory during aio_req->statdata allocation"); 1540 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1376 } 1541#ifdef IOCPARM_LEN
1542 STRLEN need = IOCPARM_LEN (request);
1543#else
1544 STRLEN need = 256;
1545#endif
1377 1546
1378 if (SvPOK (fh_or_path)) 1547 if (svlen < need)
1379 { 1548 svptr = SvGROW (arg, need);
1380 req->type = ix;
1381 req->data = newSVsv (fh_or_path);
1382 req->dataptr = SvPVbyte_nolen (req->data);
1383 } 1549 }
1384 else 1550 else
1551 svptr = (char *)SvIV (arg);
1552
1385 { 1553 {
1554 dREQ;
1555
1386 req->type = REQ_FSTAT; 1556 req->type = ix;
1387 req->fh = newSVsv (fh_or_path); 1557 req->sv1 = newSVsv (fh);
1388 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1558 req->int1 = fd;
1559 req->int2 = (long)request;
1560 req->sv2 = SvREFCNT_inc (arg);
1561 req->ptr2 = svptr;
1562
1563 REQ_SEND;
1389 } 1564 }
1565}
1566
1567void
1568aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1569 ALIAS:
1570 aio_readlink = EIO_READLINK
1571 aio_realpath = EIO_REALPATH
1572 PPCODE:
1573{
1574 dREQ;
1575
1576 req->type = ix;
1577 req_set_path1 (req, pathname);
1390 1578
1391 REQ_SEND; 1579 REQ_SEND;
1392} 1580}
1393 1581
1394void 1582void
1395aio_unlink (pathname,callback=&PL_sv_undef) 1583aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1396 SV * pathname 1584 PPCODE:
1397 SV * callback 1585{
1586 int ifd = s_fileno_croak (in_fh , 0);
1587 int ofd = s_fileno_croak (out_fh, 1);
1588 dREQ;
1589
1590 req->type = EIO_SENDFILE;
1591 req->sv1 = newSVsv (out_fh);
1592 req->int1 = ofd;
1593 req->sv2 = newSVsv (in_fh);
1594 req->int2 = ifd;
1595 req->offs = in_offset;
1596 req->size = length;
1597
1598 REQ_SEND;
1599}
1600
1601void
1602aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1603 PPCODE:
1604{
1605 int fd = s_fileno_croak (fh, 0);
1606 dREQ;
1607
1608 req->type = EIO_READAHEAD;
1609 req->sv1 = newSVsv (fh);
1610 req->int1 = fd;
1611 req->offs = offset;
1612 req->size = length;
1613
1614 REQ_SEND;
1615}
1616
1617void
1618aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1398 ALIAS: 1619 ALIAS:
1620 aio_stat = EIO_STAT
1621 aio_lstat = EIO_LSTAT
1622 aio_statvfs = EIO_STATVFS
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1628
1629 REQ_SEND;
1630}
1631
1632void
1633stat_xtime ()
1634 ALIAS:
1635 stat_atime = 1
1636 stat_mtime = 2
1637 stat_ctime = 4
1638 stat_xtime = 7
1639 PPCODE:
1640 EXTEND (SP, 3);
1641 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1642 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1643 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1644
1645void
1646stat_xtimensec ()
1647 ALIAS:
1648 stat_atimensec = 1
1649 stat_mtimensec = 2
1650 stat_ctimensec = 4
1651 stat_xtimensec = 7
1652 PPCODE:
1653 EXTEND (SP, 3);
1654 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1655 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1656 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1657
1658UV
1659major (UV dev)
1660 ALIAS:
1661 minor = 1
1662 CODE:
1663 RETVAL = ix ? minor (dev) : major (dev);
1664 OUTPUT:
1665 RETVAL
1666
1667UV
1668makedev (UV maj, UV min)
1669 CODE:
1670 RETVAL = makedev (maj, min);
1671 OUTPUT:
1672 RETVAL
1673
1674void
1675aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1676 PPCODE:
1677{
1678 dREQ;
1679
1680 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1681 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1682 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1683
1684 REQ_SEND;
1685}
1686
1687void
1688aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1689 PPCODE:
1690{
1691 dREQ;
1692
1693 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1694 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1695
1696 REQ_SEND;
1697}
1698
1699void
1700aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1701 PPCODE:
1702{
1703 dREQ;
1704
1705 req->int2 = mode;
1706 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1707
1708 REQ_SEND;
1709}
1710
1711void
1712aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1713 PPCODE:
1714{
1715 dREQ;
1716
1717 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1718 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1719 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1720
1721 REQ_SEND;
1722}
1723
1724void
1725aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1726 PPCODE:
1727{
1728 dREQ;
1729
1730 req->type = EIO_READDIR;
1731 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1732
1733 if (flags & EIO_READDIR_DENTS)
1734 req->int1 |= EIO_READDIR_CUSTOM2;
1735
1736 req_set_path1 (req, pathname);
1737
1738 REQ_SEND;
1739}
1740
1741void
1742aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1743 PPCODE:
1744{
1745 dREQ;
1746
1747 req->type = EIO_MKDIR;
1748 req->int2 = mode;
1749 req_set_path1 (req, pathname);
1750
1751 REQ_SEND;
1752}
1753
1754void
1755aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1756 ALIAS:
1399 aio_unlink = REQ_UNLINK 1757 aio_unlink = EIO_UNLINK
1400 aio_rmdir = REQ_RMDIR 1758 aio_rmdir = EIO_RMDIR
1401 aio_readdir = REQ_READDIR 1759 aio_readdir = EIO_READDIR
1402 PPCODE: 1760 PPCODE:
1403{ 1761{
1404 dREQ; 1762 dREQ;
1405 1763
1406 req->type = ix; 1764 req->type = ix;
1407 req->data = newSVsv (pathname); 1765 req_set_path1 (req, pathname);
1408 req->dataptr = SvPVbyte_nolen (req->data); 1766
1409
1410 REQ_SEND; 1767 REQ_SEND;
1411} 1768}
1412 1769
1413void 1770void
1414aio_link (oldpath,newpath,callback=&PL_sv_undef) 1771aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1415 SV * oldpath
1416 SV * newpath
1417 SV * callback
1418 ALIAS: 1772 ALIAS:
1419 aio_link = REQ_LINK 1773 aio_link = EIO_LINK
1420 aio_symlink = REQ_SYMLINK 1774 aio_symlink = EIO_SYMLINK
1421 aio_rename = REQ_RENAME 1775 aio_rename = EIO_RENAME
1422 PPCODE: 1776 PPCODE:
1423{ 1777{
1778 eio_wd wd2 = 0;
1424 dREQ; 1779 dREQ;
1425 1780
1426 req->type = ix; 1781 req->type = ix;
1427 req->fh = newSVsv (oldpath); 1782 req_set_path1 (req, oldpath);
1428 req->data2ptr = SvPVbyte_nolen (req->fh); 1783 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1429 req->data = newSVsv (newpath); 1784 req->int3 = (long)wd2;
1430 req->dataptr = SvPVbyte_nolen (req->data);
1431 1785
1432 REQ_SEND; 1786 REQ_SEND;
1433} 1787}
1434 1788
1435void 1789void
1436aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1790aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1437 SV * pathname
1438 SV * callback
1439 UV mode
1440 UV dev
1441 PPCODE: 1791 PPCODE:
1442{ 1792{
1793 eio_wd wd2 = 0;
1443 dREQ; 1794 dREQ;
1444 1795
1445 req->type = REQ_MKNOD; 1796 req->type = EIO_RENAME;
1446 req->data = newSVsv (pathname); 1797 req_set_path1 (req, oldpath);
1447 req->dataptr = SvPVbyte_nolen (req->data); 1798 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1448 req->mode = (mode_t)mode; 1799 req->int2 = flags;
1449 req->offset = dev; 1800 req->int3 = (long)wd2;
1450 1801
1451 REQ_SEND; 1802 REQ_SEND;
1452} 1803}
1453 1804
1454void 1805void
1455aio_busy (delay,callback=&PL_sv_undef) 1806aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1456 double delay
1457 SV * callback
1458 PPCODE: 1807 PPCODE:
1459{ 1808{
1460 dREQ; 1809 dREQ;
1461 1810
1462 req->type = REQ_BUSY; 1811 req->type = EIO_MKNOD;
1463 req->fd = delay < 0. ? 0 : delay; 1812 req->int2 = (mode_t)mode;
1464 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1813 req->offs = dev;
1465 1814 req_set_path1 (req, pathname);
1815
1466 REQ_SEND; 1816 REQ_SEND;
1467} 1817}
1468 1818
1469void 1819void
1470aio_group (callback=&PL_sv_undef) 1820aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1471 SV * callback 1821 ALIAS:
1472 PROTOTYPE: ;$ 1822 aio_mtouch = EIO_MTOUCH
1823 aio_msync = EIO_MSYNC
1473 PPCODE: 1824 PPCODE:
1474{ 1825{
1826 STRLEN svlen;
1827 char *svptr = SvPVbyte (data, svlen);
1828 UV len = SvUV (length);
1829
1830 if (flags < 0)
1831 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1832
1833 if (offset < 0)
1834 offset += svlen;
1835
1836 if (offset < 0 || offset > svlen)
1837 croak ("offset outside of scalar");
1838
1839 if (!SvOK (length) || len + offset > svlen)
1840 len = svlen - offset;
1841
1842 {
1843 dREQ;
1844
1845 req->type = ix;
1846 req->sv2 = SvREFCNT_inc (data);
1847 req->ptr2 = (char *)svptr + offset;
1848 req->size = len;
1849 req->int1 = flags;
1850
1851 REQ_SEND;
1852 }
1853}
1854
1855void
1856aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1857 PPCODE:
1858{
1859 STRLEN svlen;
1860 char *svptr = SvPVbyte (data, svlen);
1861 UV len = SvUV (length);
1862
1863 if (offset < 0)
1864 offset += svlen;
1865
1866 if (offset < 0 || offset > svlen)
1867 croak ("offset outside of scalar");
1868
1869 if (!SvOK (length) || len + offset > svlen)
1870 len = svlen - offset;
1871
1872 {
1873 dREQ;
1874
1875 req->type = EIO_MLOCK;
1876 req->sv2 = SvREFCNT_inc (data);
1877 req->ptr2 = (char *)svptr + offset;
1878 req->size = len;
1879
1880 REQ_SEND;
1881 }
1882}
1883
1884void
1885aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1886 PPCODE:
1887{
1888 dREQ;
1889
1890 req->type = EIO_MLOCKALL;
1891 req->int1 = flags;
1892
1893 REQ_SEND;
1894}
1895
1896void
1897aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1898 PPCODE:
1899{
1900 int fd = s_fileno_croak (fh, 0);
1475 dREQ; 1901 dREQ;
1476 1902
1477 req->type = REQ_GROUP; 1903 req->type = EIO_CUSTOM;
1478 req_send (req); 1904 req->sv1 = newSVsv (fh);
1905 req->int1 = fd;
1479 1906
1480 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1907 req->feed = fiemap;
1481} 1908#if HAVE_FIEMAP
1909 /* keep our fingers crossed that the next two types are 64 bit */
1910 req->offs = start;
1911 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1912 req->int2 = flags;
1913 req->int3 = SvOK (count) ? SvIV (count) : -1;
1914#endif
1482 1915
1916 REQ_SEND;
1917}
1918
1483void 1919void
1484aio_nop (callback=&PL_sv_undef) 1920aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1485 SV * callback 1921 PPCODE:
1922{
1923 char *svptr = 0;
1924
1925 sv_clear_foreign (data);
1926
1927 if (length) /* known length, directly read into scalar */
1928 {
1929 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1930 svptr = sv_grow (data, length + 1);
1931 else if (SvCUR (data) < length)
1932 croak ("length outside of scalar, and cannot grow");
1933 else
1934 svptr = SvPVbyte_nolen (data);
1935 }
1936
1937 {
1938 dREQ;
1939
1940 req->type = EIO_SLURP;
1941 req_set_path1 (req, pathname);
1942 req->offs = offset;
1943 req->size = length;
1944 req->sv2 = SvREFCNT_inc (data);
1945 req->ptr2 = svptr;
1946
1947 if (!SvREADONLY (data))
1948 {
1949 SvREADONLY_on (data);
1950 req->flags |= FLAG_SV2_RO_OFF;
1951 }
1952
1953 REQ_SEND;
1954 }
1955}
1956
1957void
1958aio_busy (double delay, SV *callback = &PL_sv_undef)
1486 PPCODE: 1959 PPCODE:
1487{ 1960{
1488 dREQ; 1961 dREQ;
1489 1962
1490 req->type = REQ_NOP; 1963 req->type = EIO_BUSY;
1964 req->nv1 = delay < 0. ? 0. : delay;
1491 1965
1492 REQ_SEND; 1966 REQ_SEND;
1493} 1967}
1494 1968
1969void
1970aio_group (SV *callback = &PL_sv_undef)
1971 PPCODE:
1972{
1973 dREQ;
1974
1975 req->type = EIO_GROUP;
1976
1977 PUTBACK;
1978 req_submit (req);
1979 SPAGAIN;
1980
1981 XPUSHs (req_sv (req, aio_grp_stash));
1982}
1983
1984void
1985aio_nop (SV *callback = &PL_sv_undef)
1986 ALIAS:
1987 aio_nop = EIO_NOP
1988 aio_sync = EIO_SYNC
1989 PPCODE:
1990{
1991 dREQ;
1992
1993 req->type = ix;
1994
1995 REQ_SEND;
1996}
1997
1495int 1998int
1496aioreq_pri (int pri = 0) 1999aioreq_pri (int pri = NO_INIT)
1497 PROTOTYPE: ;$
1498 CODE: 2000 CODE:
1499 RETVAL = next_pri - PRI_BIAS; 2001 RETVAL = next_pri;
1500 if (items > 0) 2002 if (items > 0)
1501 { 2003 {
1502 if (pri < PRI_MIN) pri = PRI_MIN; 2004 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1503 if (pri > PRI_MAX) pri = PRI_MAX; 2005 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1504 next_pri = pri + PRI_BIAS; 2006 next_pri = pri;
1505 } 2007 }
1506 OUTPUT: 2008 OUTPUT:
1507 RETVAL 2009 RETVAL
1508 2010
1509void 2011void
1510aioreq_nice (int nice = 0) 2012aioreq_nice (int nice = 0)
1511 CODE: 2013 CODE:
1512 nice = next_pri - nice; 2014 nice = next_pri - nice;
1513 if (nice < PRI_MIN) nice = PRI_MIN; 2015 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1514 if (nice > PRI_MAX) nice = PRI_MAX; 2016 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1515 next_pri = nice + PRI_BIAS; 2017 next_pri = nice;
1516 2018
1517void 2019void
1518flush () 2020flush ()
2021 CODE:
2022 while (eio_nreqs ())
2023 {
2024 poll_wait ();
2025 poll_cb ();
2026 }
2027
2028int
2029poll ()
2030 CODE:
2031 poll_wait ();
2032 RETVAL = poll_cb ();
2033 OUTPUT:
2034 RETVAL
2035
2036int
2037poll_fileno ()
2038 CODE:
2039 RETVAL = s_epipe_fd (&respipe);
2040 OUTPUT:
2041 RETVAL
2042
2043int
2044poll_cb (...)
1519 PROTOTYPE: 2045 PROTOTYPE:
1520 CODE: 2046 CODE:
1521 while (nreqs)
1522 {
1523 poll_wait ();
1524 poll_cb (0); 2047 RETVAL = poll_cb ();
1525 }
1526
1527void
1528poll()
1529 PROTOTYPE:
1530 CODE:
1531 if (nreqs)
1532 {
1533 poll_wait ();
1534 poll_cb (0);
1535 }
1536
1537int
1538poll_fileno()
1539 PROTOTYPE:
1540 CODE:
1541 RETVAL = respipe [0];
1542 OUTPUT: 2048 OUTPUT:
1543 RETVAL 2049 RETVAL
1544 2050
2051void
2052poll_wait ()
2053 CODE:
2054 poll_wait ();
2055
1545int 2056int
1546poll_cb(...) 2057nreqs ()
1547 PROTOTYPE:
1548 CODE: 2058 CODE:
1549 RETVAL = poll_cb (0); 2059 RETVAL = eio_nreqs ();
1550 OUTPUT: 2060 OUTPUT:
1551 RETVAL 2061 RETVAL
1552 2062
1553int 2063int
1554poll_some(int max = 0) 2064nready ()
1555 PROTOTYPE: $
1556 CODE: 2065 CODE:
1557 RETVAL = poll_cb (max); 2066 RETVAL = eio_nready ();
1558 OUTPUT: 2067 OUTPUT:
1559 RETVAL 2068 RETVAL
1560 2069
1561void 2070int
1562poll_wait() 2071npending ()
1563 PROTOTYPE:
1564 CODE: 2072 CODE:
1565 if (nreqs) 2073 RETVAL = eio_npending ();
1566 poll_wait ();
1567
1568int
1569nreqs()
1570 PROTOTYPE:
1571 CODE:
1572 RETVAL = nreqs;
1573 OUTPUT: 2074 OUTPUT:
1574 RETVAL 2075 RETVAL
1575 2076
1576int 2077int
1577nready() 2078nthreads ()
1578 PROTOTYPE:
1579 CODE: 2079 CODE:
1580 RETVAL = get_nready (); 2080 RETVAL = eio_nthreads ();
1581 OUTPUT: 2081 OUTPUT:
1582 RETVAL 2082 RETVAL
1583 2083
1584int 2084int
1585npending() 2085fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1586 PROTOTYPE: 2086 CODE:
2087 RETVAL = posix_fadvise (fh, offset, length, advice);
2088 OUTPUT:
2089 RETVAL
2090
2091IV
2092sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2093 CODE:
2094 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2095 OUTPUT:
2096 RETVAL
2097
2098void
2099mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2100 PPCODE:
2101 sv_clear_foreign (scalar);
2102{
2103 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2104 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2105 if (addr == (void *)-1)
2106 XSRETURN_NO;
2107
2108 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2109
2110 if (!(prot & PROT_WRITE))
2111 SvREADONLY_on (scalar);
2112
2113 XSRETURN_YES;
2114}
2115
2116void
2117munmap (SV *scalar)
1587 CODE: 2118 CODE:
1588 RETVAL = get_npending (); 2119 sv_clear_foreign (scalar);
2120
2121SV *
2122mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2123 CODE:
2124{
2125 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2126 void *new;
2127
2128 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2129 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2130
2131 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2132
2133 RETVAL = &PL_sv_no;
2134
2135 if (new != (void *)-1)
2136 {
2137 RETVAL = new == (void *)mg->mg_ptr
2138 ? newSVpvn ("0 but true", 10)
2139 : &PL_sv_yes;
2140
2141 mg->mg_ptr = (char *)new;
2142 mg->mg_obj = (SV *)new_length;
2143
2144 SvPVX (scalar) = mg->mg_ptr;
2145 SvCUR_set (scalar, new_length);
2146 }
2147}
1589 OUTPUT: 2148 OUTPUT:
1590 RETVAL 2149 RETVAL
2150
2151int
2152madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2153 ALIAS:
2154 mprotect = 1
2155 CODE:
2156{
2157 STRLEN svlen;
2158 void *addr = SvPVbyte (scalar, svlen);
2159 STRLEN len = SvUV (length);
2160
2161 if (offset < 0)
2162 offset += svlen;
2163
2164 if (offset < 0 || offset > svlen)
2165 croak ("offset outside of scalar");
2166
2167 if (!SvOK (length) || len + offset > svlen)
2168 len = svlen - offset;
2169
2170 addr = (void *)(((intptr_t)addr) + offset);
2171 eio_page_align (&addr, &len);
2172
2173 switch (ix)
2174 {
2175 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2176 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2177 }
2178}
2179 OUTPUT:
2180 RETVAL
2181
2182int
2183munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2184 CODE:
2185{
2186 STRLEN svlen;
2187 void *addr = SvPVbyte (scalar, svlen);
2188 size_t len = SvUV (length);
2189
2190 if (offset < 0)
2191 offset += svlen;
2192
2193 if (offset < 0 || offset > svlen)
2194 croak ("offset outside of scalar");
2195
2196 if (!SvOK (length) || len + offset > svlen)
2197 len = svlen - offset;
2198
2199 addr = (void *)(((intptr_t)addr) + offset);
2200 eio_page_align (&addr, &len);
2201#if _POSIX_MEMLOCK_RANGE
2202 RETVAL = munlock (addr, len);
2203#else
2204 RETVAL = EIO_ENOSYS ();
2205#endif
2206}
2207 OUTPUT:
2208 RETVAL
2209
2210int
2211munlockall ()
2212 CODE:
2213#if _POSIX_MEMLOCK
2214 munlockall ();
2215#else
2216 RETVAL = EIO_ENOSYS ();
2217#endif
2218 OUTPUT:
2219 RETVAL
2220
2221int
2222splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2223 CODE:
2224{
2225#if HAVE_LINUX_SPLICE
2226 loff_t off_in_, off_out_;
2227 RETVAL = splice (
2228 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2229 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2230 length, flags
2231 );
2232#else
2233 RETVAL = EIO_ENOSYS ();
2234#endif
2235}
2236 OUTPUT:
2237 RETVAL
2238
2239int
2240tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2241 CODE:
2242#if HAVE_LINUX_SPLICE
2243 RETVAL = tee (rfh, wfh, length, flags);
2244#else
2245 RETVAL = EIO_ENOSYS ();
2246#endif
2247 OUTPUT:
2248 RETVAL
2249
2250int
2251pipesize (aio_rfd rfh, int new_size = -1)
2252 PROTOTYPE: $;$
2253 CODE:
2254#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2255 if (new_size >= 0)
2256 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2257 else
2258 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2259#else
2260 errno = ENOSYS;
2261 RETVAL = -1;
2262#endif
2263 OUTPUT:
2264 RETVAL
2265
2266void
2267pipe2 (int flags = 0)
2268 PROTOTYPE: ;$
2269 PPCODE:
2270{
2271 int fd[2];
2272 int res;
2273
2274 if (flags)
2275#if HAVE_PIPE2
2276 res = pipe2 (fd, flags);
2277#else
2278 res = (errno = ENOSYS, -1);
2279#endif
2280 else
2281 res = pipe (fd);
2282
2283 if (!res)
2284 {
2285 EXTEND (SP, 2);
2286 PUSHs (newmortalFH (fd[0], O_RDONLY));
2287 PUSHs (newmortalFH (fd[1], O_WRONLY));
2288 }
2289}
2290
2291void
2292eventfd (unsigned int initval = 0, int flags = 0)
2293 PPCODE:
2294{
2295 int fd;
2296#if HAVE_EVENTFD
2297 fd = eventfd (initval, flags);
2298#else
2299 fd = (errno = ENOSYS, -1);
2300#endif
2301
2302 XPUSHs (newmortalFH (fd, O_RDWR));
2303}
2304
2305void
2306timerfd_create (int clockid, int flags = 0)
2307 PPCODE:
2308{
2309 int fd;
2310#if HAVE_TIMERFD
2311 fd = timerfd_create (clockid, flags);
2312#else
2313 fd = (errno = ENOSYS, -1);
2314#endif
2315
2316 XPUSHs (newmortalFH (fd, O_RDWR));
2317}
2318
2319void
2320timerfd_settime (SV *fh, int flags, NV interval, NV value)
2321 PPCODE:
2322{
2323 int fd = s_fileno_croak (fh, 0);
2324#if HAVE_TIMERFD
2325 int res;
2326 struct itimerspec its, ots;
2327
2328 ts_set (&its.it_interval, interval);
2329 ts_set (&its.it_value , value);
2330 res = timerfd_settime (fd, flags, &its, &ots);
2331
2332 if (!res)
2333 {
2334 EXTEND (SP, 2);
2335 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2336 PUSHs (newSVnv (ts_get (&ots.it_value)));
2337 }
2338#else
2339 errno = ENOSYS;
2340#endif
2341}
2342
2343void
2344timerfd_gettime (SV *fh)
2345 PPCODE:
2346{
2347 int fd = s_fileno_croak (fh, 0);
2348#if HAVE_TIMERFD
2349 int res;
2350 struct itimerspec ots;
2351 res = timerfd_gettime (fd, &ots);
2352
2353 if (!res)
2354 {
2355 EXTEND (SP, 2);
2356 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2357 PUSHs (newSVnv (ts_get (&ots.it_value)));
2358 }
2359#else
2360 errno = ENOSYS;
2361#endif
2362}
2363
2364UV
2365get_fdlimit ()
2366 CODE:
2367#if HAVE_RLIMITS
2368 struct rlimit rl;
2369 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2370 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2371#endif
2372 XSRETURN_UNDEF;
2373 OUTPUT:
2374 RETVAL
2375
2376void
2377min_fdlimit (UV limit = 0x7fffffffU)
2378 CODE:
2379{
2380#if HAVE_RLIMITS
2381 struct rlimit rl;
2382 rlim_t orig_rlim_max;
2383 UV bit;
2384
2385 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2386 goto fail;
2387
2388 if (rl.rlim_cur == RLIM_INFINITY)
2389 XSRETURN_YES;
2390
2391 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2392
2393 if (rl.rlim_cur < limit)
2394 {
2395 rl.rlim_cur = limit;
2396
2397 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2398 rl.rlim_max = rl.rlim_cur;
2399 }
2400
2401 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2402 XSRETURN_YES;
2403
2404 if (errno == EPERM)
2405 {
2406 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2407 /* our limit overflows a system-wide limit */
2408 /* try an adaptive algorithm, but do not lower the hardlimit */
2409 rl.rlim_max = 0;
2410 for (bit = 0x40000000U; bit; bit >>= 1)
2411 {
2412 rl.rlim_max |= bit;
2413 rl.rlim_cur = rl.rlim_max;
2414
2415 /* nevr decrease the hard limit */
2416 if (rl.rlim_max < orig_rlim_max)
2417 break;
2418
2419 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2420 rl.rlim_max &= ~bit; /* too high, remove bit again */
2421 }
2422
2423 /* now, raise the soft limit to the max permitted */
2424 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2425 {
2426 rl.rlim_cur = rl.rlim_max;
2427 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2428 errno = EPERM;
2429 }
2430 }
2431#endif
2432 fail:
2433 XSRETURN_UNDEF;
2434}
2435
2436void _on_next_submit (SV *cb)
2437 CODE:
2438 SvREFCNT_dec (on_next_submit);
2439 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1591 2440
1592PROTOTYPES: DISABLE 2441PROTOTYPES: DISABLE
2442
2443MODULE = IO::AIO PACKAGE = IO::AIO::WD
2444
2445BOOT:
2446{
2447 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2448 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2449}
2450
2451void
2452DESTROY (SV *self)
2453 CODE:
2454{
2455 aio_wd wd = SvAIO_WD (self);
2456#if HAVE_AT
2457 {
2458 SV *callback = &PL_sv_undef;
2459 dREQ; /* clobbers next_pri :/ */
2460 next_pri = req->pri; /* restore next_pri */
2461 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2462 req->type = EIO_WD_CLOSE;
2463 req->wd = wd;
2464 REQ_SEND;
2465 }
2466#else
2467 eio_wd_close_sync (wd);
2468#endif
2469}
1593 2470
1594MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2471MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1595 2472
1596void 2473void
1597cancel (aio_req_ornot req) 2474cancel (aio_req_ornot req)
1598 CODE: 2475 CODE:
1599 req_cancel (req); 2476 eio_cancel (req);
1600 2477
1601void 2478void
1602cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2479cb (aio_req_ornot req, SV *callback = NO_INIT)
1603 CODE: 2480 PPCODE:
2481{
2482 if (GIMME_V != G_VOID)
2483 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2484
2485 if (items > 1)
2486 {
2487 SV *cb_cv = get_cb (callback);
2488
1604 SvREFCNT_dec (req->callback); 2489 SvREFCNT_dec (req->callback);
1605 req->callback = newSVsv (callback); 2490 req->callback = SvREFCNT_inc (cb_cv);
2491 }
2492}
1606 2493
1607MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2494MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1608 2495
1609void 2496void
1610add (aio_req grp, ...) 2497add (aio_req grp, ...)
1611 PPCODE: 2498 PPCODE:
1612{ 2499{
1613 int i; 2500 int i;
1614 aio_req req;
1615 2501
1616 if (grp->fd == 2) 2502 if (grp->int1 == 2)
1617 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2503 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1618 2504
1619 for (i = 1; i < items; ++i ) 2505 for (i = 1; i < items; ++i )
1620 { 2506 {
2507 aio_req req;
2508
1621 if (GIMME_V != G_VOID) 2509 if (GIMME_V != G_VOID)
1622 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2510 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1623 2511
1624 req = SvAIO_REQ (ST (i)); 2512 req = SvAIO_REQ (ST (i));
1625 2513
1626 if (req) 2514 if (req)
1627 { 2515 eio_grp_add (grp, req);
1628 ++grp->length;
1629 req->grp = grp;
1630
1631 req->grp_prev = 0;
1632 req->grp_next = grp->grp_first;
1633
1634 if (grp->grp_first)
1635 grp->grp_first->grp_prev = req;
1636
1637 grp->grp_first = req;
1638 }
1639 } 2516 }
1640} 2517}
1641 2518
1642void 2519void
1643cancel_subs (aio_req_ornot req) 2520cancel_subs (aio_req_ornot req)
… …
1652 AV *av; 2529 AV *av;
1653 2530
1654 grp->errorno = errno; 2531 grp->errorno = errno;
1655 2532
1656 av = newAV (); 2533 av = newAV ();
2534 av_extend (av, items - 1);
1657 2535
1658 for (i = 1; i < items; ++i ) 2536 for (i = 1; i < items; ++i )
1659 av_push (av, newSVsv (ST (i))); 2537 av_push (av, newSVsv (ST (i)));
1660 2538
1661 SvREFCNT_dec (grp->data); 2539 SvREFCNT_dec (grp->sv1);
1662 grp->data = (SV *)av; 2540 grp->sv1 = (SV *)av;
1663} 2541}
1664 2542
1665void 2543void
1666errno (aio_req grp, int errorno = errno) 2544errno (aio_req grp, int errorno = errno)
1667 CODE: 2545 CODE:
1668 grp->errorno = errorno; 2546 grp->errorno = errorno;
1669 2547
1670void 2548void
1671limit (aio_req grp, int limit) 2549limit (aio_req grp, int limit)
1672 CODE: 2550 CODE:
1673 grp->fd2 = limit; 2551 eio_grp_limit (grp, limit);
1674 aio_grp_feed (grp);
1675 2552
1676void 2553void
1677feed (aio_req grp, SV *callback=&PL_sv_undef) 2554feed (aio_req grp, SV *callback = &PL_sv_undef)
1678 CODE: 2555 CODE:
1679{ 2556{
1680 SvREFCNT_dec (grp->fh2); 2557 SvREFCNT_dec (grp->sv2);
1681 grp->fh2 = newSVsv (callback); 2558 grp->sv2 = newSVsv (callback);
2559 grp->feed = aio_grp_feed;
1682 2560
1683 if (grp->fd2 <= 0) 2561 if (grp->int2 <= 0)
1684 grp->fd2 = 2; 2562 grp->int2 = 2;
1685 2563
1686 aio_grp_feed (grp); 2564 eio_grp_limit (grp, grp->int2);
1687} 2565}
1688 2566

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