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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.86 by root, Mon Oct 30 23:30:00 2006 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 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#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#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> 21# include <sys/mman.h>
39# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
40# include <sys/socket.h> 86 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_EVENTFD
112# include <sys/eventfd.h>
113#endif
114
115#if HAVE_RLIMITS
116 #include <sys/time.h>
117 #include <sys/resource.h>
118#endif
119
120typedef SV SV8; /* byte-sv, used for argument-checking */
121typedef int aio_rfd; /* read file desriptor */
122typedef int aio_wfd; /* write file descriptor */
123
124static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
125
126#define EIO_REQ_MEMBERS \
127 SV *callback; \
128 SV *sv1, *sv2; \
129 SV *sv3, *sv4; \
130 STRLEN stroffset; \
131 SV *self;
132
133#define EIO_NO_WRAPPERS 1
134
135#include "libeio/eio.h"
136
137static int req_invoke (eio_req *req);
138#define EIO_FINISH(req) req_invoke (req)
139static void req_destroy (eio_req *grp);
140#define EIO_DESTROY(req) req_destroy (req)
141
142#include "libeio/eio.c"
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#if !HAVE_POSIX_MADVISE
149# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#ifndef MAP_ANONYMOUS
153# ifdef MAP_ANON
154# define MAP_ANONYMOUS MAP_ANON
43# else 155# else
44# error sendfile support requested but not available 156# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 157# endif
46#endif 158#endif
47 159
48/* number of seconds after which idle threads exit */ 160/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 161/* also provides const_iv_ and const_niv_ macros for them */
162#include "def0.h"
50 163
51/* used for struct dirent, AIX doesn't provide it */ 164#ifndef makedev
52#ifndef NAME_MAX 165# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 166#endif
167#ifndef major
168# define major(dev) ((dev) >> 8)
79#endif 169#endif
170#ifndef minor
171# define minor(dev) ((dev) & 0xff)
172#endif
80 173
81/* buffer size for various temporary buffers */ 174#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 175# define PAGESIZE sysconf (_SC_PAGESIZE)
176#endif
83 177
84#define dBUF \ 178/*****************************************************************************/
85 char *aio_buf; \ 179
86 LOCK (wrklock); \ 180#if !_POSIX_MAPPED_FILES
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 181# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
88 UNLOCK (wrklock); \ 182# define munmap(addr,length) EIO_ENOSYS ()
89 if (!aio_buf) \ 183#endif
184
185#if !_POSIX_MEMORY_PROTECTION
186# define mprotect(addr,len,prot) EIO_ENOSYS ()
187#endif
188
189#define FOREIGN_MAGIC PERL_MAGIC_ext
190
191static int ecb_cold
192mmap_free (pTHX_ SV *sv, MAGIC *mg)
193{
194 int old_errno = errno;
195 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
196 errno = old_errno;
197
198 mg->mg_obj = 0; /* just in case */
199
200 SvREADONLY_off (sv);
201
202 if (SvPVX (sv) != mg->mg_ptr)
203 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
204
205 SvCUR_set (sv, 0);
206 SvPVX (sv) = 0;
207 SvOK_off (sv);
208
90 return -1; 209 return 0;
210}
91 211
92enum { 212static MGVTBL mmap_vtbl = {
93 REQ_QUIT, 213 0, 0, 0, 0, mmap_free
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104}; 214};
105 215
106#define AIO_REQ_KLASS "IO::AIO::REQ" 216static int ecb_cold
107#define AIO_GRP_KLASS "IO::AIO::GRP" 217sysfree_free (pTHX_ SV *sv, MAGIC *mg)
108
109typedef struct aio_cb
110{ 218{
111 struct aio_cb *volatile next; 219 free (mg->mg_ptr);
220 mg->mg_obj = 0; /* just in case */
112 221
113 SV *callback, *fh; 222 SvREADONLY_off (sv);
114 SV *sv1, *sv2;
115 void *ptr1, *ptr2;
116 Stat_t *statdata;
117 off_t offs;
118 size_t size;
119 ssize_t result;
120 223
121 STRLEN stroffset; 224 if (SvPVX (sv) != mg->mg_ptr)
122 int type; 225 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
123 int int1, int2;
124 int errorno;
125 mode_t mode; /* open */
126 226
127 unsigned char flags; 227 SvCUR_set (sv, 0);
128 unsigned char pri; 228 SvPVX (sv) = 0;
229 SvOK_off (sv);
129 230
130 SV *self; /* the perl counterpart of this request, if any */ 231 return 0;
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 232}
132} aio_cb;
133 233
134enum { 234static MGVTBL sysfree_vtbl = {
135 FLAG_CANCELLED = 0x01, 235 0, 0, 0, 0, sysfree_free
136 FLAG_DATA_RO_OFF = 0x80, /* data was set readonly */
137}; 236};
138 237
139typedef aio_cb *aio_req; 238/*****************************************************************************/
140typedef aio_cb *aio_req_ornot;
141 239
142enum { 240/* helper: set scalar to foreign ptr with custom free */
143 PRI_MIN = -4, 241static void
144 PRI_MAX = 4, 242sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
145
146 DEFAULT_PRI = 0,
147 PRI_BIAS = -PRI_MIN,
148 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
149};
150
151#define AIO_TICKS ((1000000 + 1023) >> 10)
152
153static unsigned int max_poll_time = 0;
154static unsigned int max_poll_reqs = 0;
155
156/* calculcate time difference in ~1/AIO_TICKS of a second */
157static int tvdiff (struct timeval *tv1, struct timeval *tv2)
158{ 243{
159 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 244 sv_force_normal (sv);
160 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
161}
162 245
163static int next_pri = DEFAULT_PRI + PRI_BIAS; 246 /* we store the length in mg_obj, as namlen is I32 :/ */
247 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
248 ->mg_obj = (SV *)length;
164 249
165static unsigned int started, idle, wanted; 250 SvUPGRADE (sv, SVt_PV); /* nop... */
166 251
167#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 252 if (SvLEN (sv))
168# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 253 Safefree (SvPVX (sv));
169#else
170# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171#endif
172 254
173#define LOCK(mutex) pthread_mutex_lock (&(mutex)) 255 SvPVX (sv) = (char *)addr;
174#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 256 SvCUR_set (sv, length);
257 SvLEN_set (sv, 0);
258 SvPOK_only (sv);
259}
175 260
176/* worker threads management */ 261static void
177static pthread_mutex_t wrklock = AIO_MUTEX_INIT; 262sv_clear_foreign (SV *sv)
178
179typedef struct worker {
180 /* locked by wrklock */
181 struct worker *prev, *next;
182
183 pthread_t tid;
184
185 /* locked by reslock, reqlock or wrklock */
186 aio_req req; /* currently processed request */
187 void *dbuf;
188 DIR *dirp;
189} worker;
190
191static worker wrk_first = { &wrk_first, &wrk_first, 0 };
192
193static void worker_clear (worker *wrk)
194{ 263{
195 if (wrk->dirp) 264 /* todo: iterate over magic and only free ours, but of course */
265 /* the perl5porters will call that (correct) behaviour buggy */
266 sv_unmagic (sv, FOREIGN_MAGIC);
267}
268
269/*****************************************************************************/
270
271static void
272fiemap (eio_req *req)
273{
274 req->result = -1;
275
276#if HAVE_FIEMAP
277 /* assume some c99 */
278 struct fiemap *fiemap = 0;
279 size_t end_offset;
280 int count = req->int3;
281
282 req->flags |= EIO_FLAG_PTR1_FREE;
283
284 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
285 /* increase in 3.5kb steps */
286 if (count < 0)
287 count = 8;
288
289 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
290 errno = ENOMEM;
291 if (!fiemap)
292 return;
293
294 req->ptr1 = fiemap;
295
296 fiemap->fm_start = req->offs;
297 fiemap->fm_length = req->size;
298 fiemap->fm_flags = req->int2;
299 fiemap->fm_extent_count = count;
300
301 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
302 return;
303
304 if (req->int3 >= 0 /* not autosizing */
305 || !fiemap->fm_mapped_extents /* no more extents */
306 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
307 goto done;
308
309 /* else we have to loop -
310 * it would be tempting (actually I tried that first) to just query the
311 * number of extents needed, but linux often feels like not returning all
312 * extents, without telling us it left any out. this complicates
313 * this quite a bit.
314 */
315
316 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
317
318 for (;;)
196 { 319 {
197 closedir (wrk->dirp); 320 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
198 wrk->dirp = 0; 321 char scratch[3072];
199 } 322 struct fiemap *incmap = (struct fiemap *)scratch;
200 323
201 if (wrk->dbuf) 324 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
202 { 325 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
203 free (wrk->dbuf); 326 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
204 wrk->dbuf = 0; 327 incmap->fm_flags = fiemap->fm_flags;
205 } 328 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
206}
207 329
208static void worker_free (worker *wrk) 330 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
209{
210 wrk->next->prev = wrk->prev;
211 wrk->prev->next = wrk->next;
212
213 free (wrk);
214}
215
216static volatile unsigned int nreqs, nready, npending;
217static volatile unsigned int max_idle = 4;
218static volatile unsigned int max_outstanding = 0xffffffff;
219static int respipe [2];
220
221static pthread_mutex_t reslock = AIO_MUTEX_INIT;
222static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
223static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
224
225#if WORDACCESS_UNSAFE
226
227static unsigned int get_nready ()
228{
229 unsigned int retval;
230
231 LOCK (reqlock);
232 retval = nready;
233 UNLOCK (reqlock);
234
235 return retval;
236}
237
238static unsigned int get_npending ()
239{
240 unsigned int retval;
241
242 LOCK (reslock);
243 retval = npending;
244 UNLOCK (reslock);
245
246 return retval;
247}
248
249static unsigned int get_nthreads ()
250{
251 unsigned int retval;
252
253 LOCK (wrklock);
254 retval = started;
255 UNLOCK (wrklock);
256
257 return retval;
258}
259
260#else
261
262# define get_nready() nready
263# define get_npending() npending
264# define get_nthreads() started
265
266#endif
267
268/*
269 * a somewhat faster data structure might be nice, but
270 * with 8 priorities this actually needs <20 insns
271 * per shift, the most expensive operation.
272 */
273typedef struct {
274 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
275 int size;
276} reqq;
277
278static reqq req_queue;
279static reqq res_queue;
280
281int reqq_push (reqq *q, aio_req req)
282{
283 int pri = req->pri;
284 req->next = 0;
285
286 if (q->qe[pri])
287 {
288 q->qe[pri]->next = req;
289 q->qe[pri] = req;
290 }
291 else
292 q->qe[pri] = q->qs[pri] = req;
293
294 return q->size++;
295}
296
297aio_req reqq_shift (reqq *q)
298{
299 int pri;
300
301 if (!q->size)
302 return 0; 331 return;
303 332
304 --q->size; 333 if (!incmap->fm_mapped_extents)
334 goto done;
305 335
306 for (pri = NUM_PRI; pri--; ) 336 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
307 { 337 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
308 aio_req req = q->qs[pri]; 338 errno = ENOMEM;
309
310 if (req) 339 if (!fiemap)
340 return;
341
342 req->ptr1 = fiemap;
343
344 for (count = 0; count < incmap->fm_mapped_extents; ++count)
311 { 345 {
312 if (!(q->qs[pri] = req->next)) 346 struct fiemap_extent *e = incmap->fm_extents + count;
313 q->qe[pri] = 0;
314 347
315 return req; 348 if (e->fe_logical + e->fe_length >= end_offset)
349 goto done;
350
351 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
352
353 if (e->fe_flags & FIEMAP_EXTENT_LAST)
354 goto done;
355
316 } 356 }
317 } 357 }
318 358
319 abort (); 359done:
320} 360 req->result = 0;
321 361
322static int poll_cb (); 362#else
323static void req_invoke (aio_req req); 363 errno = ENOSYS;
364#endif
365}
366
367/*****************************************************************************/
368
369enum {
370 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
371};
372
373typedef eio_req *aio_req;
374typedef eio_req *aio_req_ornot;
375typedef eio_wd aio_wd;
376
377static SV *on_next_submit;
378static int next_pri = EIO_PRI_DEFAULT;
379static int max_outstanding;
380
381static s_epipe respipe;
382
324static void req_free (aio_req req); 383static void req_destroy (aio_req req);
325static void req_cancel (aio_req req); 384static void req_cancel (aio_req req);
326 385
386static void
387want_poll (void)
388{
389 /* write a dummy byte to the pipe so fh becomes ready */
390 s_epipe_signal (&respipe);
391}
392
393static void
394done_poll (void)
395{
396 /* read any signals sent by the worker threads */
397 s_epipe_drain (&respipe);
398}
399
327/* must be called at most once */ 400/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 401static SV *
402req_sv (aio_req req, HV *stash)
329{ 403{
330 if (!req->self) 404 if (!req->self)
331 { 405 {
332 req->self = (SV *)newHV (); 406 req->self = (SV *)newHV ();
333 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 407 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
334 } 408 }
335 409
336 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 410 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
337} 411}
338 412
339static aio_req SvAIO_REQ (SV *sv) 413static SV *
414newSVaio_wd (aio_wd wd)
415{
416 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
417}
418
419static aio_req
420SvAIO_REQ (SV *sv)
340{ 421{
341 MAGIC *mg; 422 MAGIC *mg;
342 423
343 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 424 if (!SvROK (sv)
425 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
426 || (SvSTASH (SvRV (sv)) != aio_grp_stash
427 && SvSTASH (SvRV (sv)) != aio_req_stash
428 && !sv_derived_from (sv, "IO::AIO::REQ")))
344 croak ("object of class " AIO_REQ_KLASS " expected"); 429 croak ("object of class IO::AIO::REQ expected");
345 430
346 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 431 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
347 432
348 return mg ? (aio_req)mg->mg_ptr : 0; 433 return mg ? (aio_req)mg->mg_ptr : 0;
349} 434}
350 435
436static aio_wd
437SvAIO_WD (SV *sv)
438{
439 if (!SvROK (sv)
440 || SvTYPE (SvRV (sv)) != SVt_PVMG
441 || SvSTASH (SvRV (sv)) != aio_wd_stash)
442 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
443
444 return (aio_wd)(long)SvIVX (SvRV (sv));
445}
446
447static SV *
448newmortalFH (int fd, int flags)
449{
450 if (fd < 0)
451 return &PL_sv_undef;
452
453 GV *gv = (GV *)sv_newmortal ();
454 char sym[64];
455 int symlen;
456
457 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
458 gv_init (gv, aio_stash, sym, symlen, 0);
459
460 symlen = snprintf (
461 sym,
462 sizeof (sym),
463 "%s&=%d",
464 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
465 fd
466 );
467
468 return do_open (gv, sym, symlen, 0, 0, 0, 0)
469 ? (SV *)gv : &PL_sv_undef;
470}
471
472static void
351static void aio_grp_feed (aio_req grp) 473aio_grp_feed (aio_req grp)
352{ 474{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 475 if (grp->sv2 && SvOK (grp->sv2))
354 { 476 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 477 dSP;
360 478
361 ENTER; 479 ENTER;
362 SAVETMPS; 480 SAVETMPS;
363 PUSHMARK (SP); 481 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 482 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 483 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 484 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 485 SPAGAIN;
368 FREETMPS; 486 FREETMPS;
369 LEAVE; 487 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 488 }
380} 489}
381 490
382static void aio_grp_dec (aio_req grp) 491static void
492req_submit (eio_req *req)
383{ 493{
384 --grp->size; 494 eio_submit (req);
385 495
386 /* call feeder, if applicable */ 496 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 497 {
392 req_invoke (grp); 498 dSP;
393 req_free (grp); 499 SV *cb = sv_2mortal (on_next_submit);
500
501 on_next_submit = 0;
502
503 PUSHMARK (SP);
504 PUTBACK;
505 call_sv (cb, G_DISCARD | G_EVAL);
394 } 506 }
395} 507}
396 508
509static int
397static void req_invoke (aio_req req) 510req_invoke (eio_req *req)
398{ 511{
399 dSP;
400
401 if (req->flags & FLAG_DATA_RO_OFF) 512 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 513 SvREADONLY_off (req->sv2);
403 514
404 if (req->statdata) 515 if (!EIO_CANCELLED (req) && req->callback)
405 { 516 {
406 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 517 dSP;
407 PL_laststatval = req->result; 518 static SV *sv_result_cache; /* caches the result integer SV */
408 PL_statcache = *(req->statdata); 519 SV *sv_result;
409 }
410 520
411 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
412 {
413 ENTER; 521 ENTER;
414 SAVETMPS; 522 SAVETMPS;
415 PUSHMARK (SP); 523 PUSHMARK (SP);
416 EXTEND (SP, 1); 524 EXTEND (SP, 1);
417 525
526 /* do not recreate the result IV from scratch each time */
527 if (expect_true (sv_result_cache))
528 {
529 sv_result = sv_result_cache; sv_result_cache = 0;
530 SvIV_set (sv_result, req->result);
531 SvIOK_only (sv_result);
532 }
533 else
534 {
535 sv_result = newSViv (req->result);
536 SvREADONLY_on (sv_result);
537 }
538
418 switch (req->type) 539 switch (req->type)
419 { 540 {
541 case EIO_WD_OPEN:
542 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
543 break;
544
420 case REQ_READDIR: 545 case EIO_READDIR:
421 { 546 {
422 SV *rv = &PL_sv_undef; 547 SV *rv = &PL_sv_undef;
423 548
424 if (req->result >= 0) 549 if (req->result >= 0)
425 { 550 {
426 int i; 551 int i;
427 char *buf = req->ptr2; 552 char *names = (char *)req->ptr2;
553 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
428 AV *av = newAV (); 554 AV *av = newAV ();
429 555
430 av_extend (av, req->result - 1); 556 av_extend (av, req->result - 1);
431 557
432 for (i = 0; i < req->result; ++i) 558 for (i = 0; i < req->result; ++i)
433 { 559 {
434 SV *sv = newSVpv (buf, 0); 560 if (req->int1 & EIO_READDIR_DENTS)
561 {
562 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
435 563
564 if (req->int1 & EIO_READDIR_CUSTOM2)
565 {
566 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
567 AV *avent = newAV ();
568
569 av_extend (avent, 2);
570
571 if (!sv_type [ent->type])
572 {
573 sv_type [ent->type] = newSViv (ent->type);
574 SvREADONLY_on (sv_type [ent->type]);
575 }
576
577 av_store (avent, 0, namesv);
578 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
579 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
580
581 av_store (av, i, newRV_noinc ((SV *)avent));
582 }
583 else
436 av_store (av, i, sv); 584 av_store (av, i, namesv);
585
586 ++ent;
587 }
588 else
589 {
590 SV *name = newSVpv (names, 0);
591 av_store (av, i, name);
437 buf += SvCUR (sv) + 1; 592 names += SvCUR (name) + 1;
593 }
438 } 594 }
439 595
440 rv = sv_2mortal (newRV_noinc ((SV *)av)); 596 rv = sv_2mortal (newRV_noinc ((SV *)av));
441 } 597 }
442 598
443 PUSHs (rv); 599 PUSHs (rv);
600
601 if (req->int1 & EIO_READDIR_CUSTOM1)
602 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
444 } 603 }
445 break; 604 break;
446 605
447 case REQ_OPEN: 606 case EIO_OPEN:
607 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
608 break;
609
610 case EIO_STATVFS:
611 case EIO_FSTATVFS:
448 { 612 {
449 /* convert fd to fh */ 613 SV *rv = &PL_sv_undef;
450 SV *fh; 614
615#ifndef _WIN32
616 if (req->result >= 0)
617 {
618 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
619 HV *hv = newHV ();
620 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
621 * chooses to make it a struct.
622 */
623 unsigned long fsid = 0;
624 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
451 625
452 PUSHs (sv_2mortal (newSViv (req->result))); 626 rv = sv_2mortal (newRV_noinc ((SV *)hv));
453 PUTBACK;
454 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
455 SPAGAIN;
456 627
457 fh = SvREFCNT_inc (POPs); 628 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
629 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
630 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
631 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
632 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
633 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
634 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
635 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
636 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
637 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
638 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
639 }
640#endif
458 641
459 PUSHMARK (SP); 642 PUSHs (rv);
460 XPUSHs (sv_2mortal (fh));
461 } 643 }
644
462 break; 645 break;
463 646
464 case REQ_GROUP: 647 case EIO_GROUP:
465 req->int1 = 2; /* mark group as finished */ 648 req->int1 = 2; /* mark group as finished */
466 649
467 if (req->sv1) 650 if (req->sv1)
468 { 651 {
469 int i; 652 int i;
… …
473 for (i = 0; i <= AvFILL (av); ++i) 656 for (i = 0; i <= AvFILL (av); ++i)
474 PUSHs (*av_fetch (av, i, 0)); 657 PUSHs (*av_fetch (av, i, 0));
475 } 658 }
476 break; 659 break;
477 660
478 case REQ_NOP: 661 case EIO_NOP:
479 case REQ_BUSY: 662 case EIO_BUSY:
480 break; 663 break;
481 664
482 case REQ_READLINK: 665 case EIO_READLINK:
666 case EIO_REALPATH:
483 if (req->result > 0) 667 if (req->result > 0)
668 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
669 break;
670
671 case EIO_STAT:
672 case EIO_LSTAT:
673 case EIO_FSTAT:
674 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
675
676 if (!(PL_laststatval = req->result))
677 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
678 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
679
680 PUSHs (sv_result);
681 break;
682
683 case EIO_SEEK:
684 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
685 break;
686
687 case EIO_READ:
688 {
689 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
690 *SvEND (req->sv2) = 0;
691 SvPOK_only (req->sv2);
692 SvSETMAGIC (req->sv2);
693 PUSHs (sv_result);
694 }
695 break;
696
697 case EIO_SLURP:
698 {
699 if (req->result >= 0)
700 {
701 /* if length was originally not known, we steal the malloc'ed memory */
702 if (req->flags & EIO_FLAG_PTR2_FREE)
703 {
704 req->flags &= ~EIO_FLAG_PTR2_FREE;
705 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
706 }
707 else
708 {
709 SvCUR_set (req->sv2, req->result);
710 *SvEND (req->sv2) = 0;
711 SvPOK_only (req->sv2);
712 }
713
714 SvSETMAGIC (req->sv2);
715 }
716
717 PUSHs (sv_result);
718 }
719 break;
720
721 case EIO_CUSTOM:
722 if (req->feed == fiemap)
484 { 723 {
485 SvCUR_set (req->sv1, req->result); 724#if HAVE_FIEMAP
486 *SvEND (req->sv1) = 0;
487 PUSHs (req->sv1); 725 if (!req->result)
726 {
727 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
728
729 if (fiemap->fm_extent_count)
730 {
731 AV *av = newAV ();
732 int i;
733
734 while (fiemap->fm_mapped_extents)
735 {
736 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
737 AV *ext_av = newAV ();
738
739 av_store (ext_av, 3, newSVuv (extent->fe_flags));
740 av_store (ext_av, 2, newSVval64 (extent->fe_length));
741 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
742 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
743
744 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
745 }
746
747 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
748 }
749 else
750 {
751 SvIV_set (sv_result, fiemap->fm_mapped_extents);
752 PUSHs (sv_result);
753 }
754 }
755#endif
488 } 756 }
757 else
758 PUSHs (sv_result);
489 break; 759 break;
490 760
491 case REQ_READ: 761 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
492 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 762 if (req->result > 0)
493 *SvEND (req->sv1) = 0; 763 SvIV_set (sv_result, 0);
494 /* fall through */ 764 /* FALLTHROUGH */
765
495 default: 766 default:
496 PUSHs (sv_2mortal (newSViv (req->result))); 767 PUSHs (sv_result);
497 break; 768 break;
498 } 769 }
499 770
500 errno = req->errorno; 771 errno = req->errorno;
501 772
502 PUTBACK; 773 PUTBACK;
503 call_sv (req->callback, G_VOID | G_EVAL); 774 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
504 SPAGAIN; 775 SPAGAIN;
776
777 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
778 SvREFCNT_dec (sv_result);
779 else
780 sv_result_cache = sv_result;
505 781
506 FREETMPS; 782 FREETMPS;
507 LEAVE; 783 LEAVE;
784
785 PUTBACK;
508 } 786 }
509 787
510 if (req->grp) 788 return !!SvTRUE (ERRSV);
511 {
512 aio_req grp = req->grp;
513
514 /* unlink request */
515 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
516 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
517
518 if (grp->grp_first == req)
519 grp->grp_first = req->grp_next;
520
521 aio_grp_dec (grp);
522 }
523
524 if (SvTRUE (ERRSV))
525 {
526 req_free (req);
527 croak (0);
528 }
529} 789}
530 790
531static void req_free (aio_req req) 791static void
792req_destroy (aio_req req)
532{ 793{
533 if (req->self) 794 if (req->self)
534 { 795 {
535 sv_unmagic (req->self, PERL_MAGIC_ext); 796 sv_unmagic (req->self, PERL_MAGIC_ext);
536 SvREFCNT_dec (req->self); 797 SvREFCNT_dec (req->self);
537 } 798 }
538 799
539 SvREFCNT_dec (req->fh);
540 SvREFCNT_dec (req->sv1); 800 SvREFCNT_dec (req->sv1);
541 SvREFCNT_dec (req->sv2); 801 SvREFCNT_dec (req->sv2);
802 SvREFCNT_dec (req->sv3);
803 SvREFCNT_dec (req->sv4);
542 SvREFCNT_dec (req->callback); 804 SvREFCNT_dec (req->callback);
543 Safefree (req->statdata);
544 805
545 if (req->type == REQ_READDIR)
546 free (req->ptr2);
547
548 Safefree (req); 806 free (req);
549} 807}
550 808
809static void
551static void req_cancel_subs (aio_req grp) 810req_cancel_subs (aio_req grp)
552{ 811{
553 aio_req sub;
554
555 if (grp->type != REQ_GROUP) 812 if (grp->type != EIO_GROUP)
556 return; 813 return;
557 814
558 SvREFCNT_dec (grp->sv2); 815 SvREFCNT_dec (grp->sv2);
559 grp->sv2 = 0; 816 grp->sv2 = 0;
560 817
561 for (sub = grp->grp_first; sub; sub = sub->grp_next) 818 eio_grp_cancel (grp);
562 req_cancel (sub);
563} 819}
564 820
565static void req_cancel (aio_req req) 821static void ecb_cold
822create_respipe (void)
566{ 823{
567 req->flags |= FLAG_CANCELLED; 824 if (s_epipe_renew (&respipe))
568 825 croak ("IO::AIO: unable to initialize result pipe");
569 req_cancel_subs (req);
570} 826}
571 827
572static void *aio_proc(void *arg); 828static void
573 829poll_wait (void)
574static void start_thread (void)
575{ 830{
576 sigset_t fullsigset, oldsigset;
577 pthread_attr_t attr;
578
579 worker *wrk = calloc (1, sizeof (worker));
580
581 if (!wrk)
582 croak ("unable to allocate worker thread data");
583
584 pthread_attr_init (&attr);
585 pthread_attr_setstacksize (&attr, STACKSIZE);
586 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
587#ifdef PTHREAD_SCOPE_PROCESS
588 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
589#endif
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void maybe_start_thread ()
612{
613 if (get_nthreads () >= wanted)
614 return;
615
616 /* todo: maybe use idle here, but might be less exact */
617 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
618 return;
619
620 start_thread ();
621}
622
623static void req_send (aio_req req)
624{
625 ++nreqs;
626
627 LOCK (reqlock);
628 ++nready;
629 reqq_push (&req_queue, req);
630 pthread_cond_signal (&reqwait);
631 UNLOCK (reqlock);
632
633 maybe_start_thread ();
634}
635
636static void end_thread (void)
637{
638 aio_req req;
639
640 Newz (0, req, 1, aio_cb);
641
642 req->type = REQ_QUIT;
643 req->pri = PRI_MAX + PRI_BIAS;
644
645 LOCK (reqlock);
646 reqq_push (&req_queue, req);
647 pthread_cond_signal (&reqwait);
648 UNLOCK (reqlock);
649
650 LOCK (wrklock);
651 --started;
652 UNLOCK (wrklock);
653}
654
655static void set_max_idle (int nthreads)
656{
657 if (WORDACCESS_UNSAFE) LOCK (reqlock);
658 max_idle = nthreads <= 0 ? 1 : nthreads;
659 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
660}
661
662static void min_parallel (int nthreads)
663{
664 if (wanted < nthreads)
665 wanted = nthreads;
666}
667
668static void max_parallel (int nthreads)
669{
670 if (wanted > nthreads)
671 wanted = nthreads;
672
673 while (started > wanted)
674 end_thread ();
675}
676
677static void poll_wait ()
678{
679 fd_set rfd;
680
681 while (nreqs) 831 while (eio_nreqs ())
682 { 832 {
683 int size; 833 int size;
684 if (WORDACCESS_UNSAFE) LOCK (reslock); 834
835 X_LOCK (EIO_POOL->reslock);
685 size = res_queue.size; 836 size = EIO_POOL->res_queue.size;
686 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 837 X_UNLOCK (EIO_POOL->reslock);
687 838
688 if (size) 839 if (size)
689 return; 840 return;
690 841
691 maybe_start_thread (); 842 etp_maybe_start_thread (EIO_POOL);
692 843
693 FD_ZERO(&rfd); 844 s_epipe_wait (&respipe);
694 FD_SET(respipe [0], &rfd);
695
696 select (respipe [0] + 1, &rfd, 0, 0, 0);
697 } 845 }
698} 846}
699 847
700static int poll_cb () 848static int
849poll_cb (void)
701{ 850{
702 dSP;
703 int count = 0;
704 int maxreqs = max_poll_reqs;
705 int do_croak = 0;
706 struct timeval tv_start, tv_now;
707 aio_req req;
708
709 if (max_poll_time)
710 gettimeofday (&tv_start, 0);
711
712 for (;;) 851 for (;;)
713 { 852 {
714 for (;;) 853 int res = eio_poll ();
854
855 if (res > 0)
856 croak (0);
857
858 if (!max_outstanding || max_outstanding > eio_nreqs ())
859 return res;
860
861 poll_wait ();
862 }
863}
864
865static void ecb_cold
866reinit (void)
867{
868 create_respipe ();
869
870 if (eio_init (want_poll, done_poll) < 0)
871 croak ("IO::AIO: unable to initialise eio library");
872}
873
874/*****************************************************************************/
875
876static SV *
877get_cb (SV *cb_sv)
878{
879 SvGETMAGIC (cb_sv);
880 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
881}
882
883static aio_req ecb_noinline
884dreq (SV *callback)
885{
886 SV *cb_cv;
887 aio_req req;
888 int req_pri = next_pri;
889 next_pri = EIO_PRI_DEFAULT;
890
891 cb_cv = get_cb (callback);
892
893 req = calloc (sizeof (*req), 1);
894 if (!req)
895 croak ("out of memory during eio_req allocation");
896
897 req->callback = SvREFCNT_inc (cb_cv);
898 req->pri = req_pri;
899
900 return req;
901}
902
903#define dREQ \
904 aio_req req = dreq (callback); \
905
906#define REQ_SEND \
907 PUTBACK; \
908 req_submit (req); \
909 SPAGAIN; \
910 \
911 if (GIMME_V != G_VOID) \
912 XPUSHs (req_sv (req, aio_req_stash));
913
914ecb_inline void
915req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
916{
917 if (expect_false (SvROK (path)))
918 {
919 SV *rv = SvRV (path);
920 SV *wdob;
921
922 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
715 { 923 {
716 maybe_start_thread (); 924 path = AvARRAY (rv)[1];
925 wdob = AvARRAY (rv)[0];
717 926
718 LOCK (reslock); 927 if (SvOK (wdob))
719 req = reqq_shift (&res_queue);
720
721 if (req)
722 { 928 {
723 --npending; 929 *wd = SvAIO_WD (wdob);
724 930 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
725 if (!res_queue.size)
726 {
727 /* read any signals sent by the worker threads */
728 char buf [32];
729 while (read (respipe [0], buf, 32) == 32)
730 ;
731 }
732 }
733
734 UNLOCK (reslock);
735
736 if (!req)
737 break;
738
739 --nreqs;
740
741 if (req->type == REQ_GROUP && req->size)
742 {
743 req->int1 = 1; /* mark request as delayed */
744 continue;
745 } 931 }
746 else 932 else
747 { 933 *wd = EIO_INVALID_WD;
748 req_invoke (req);
749
750 count++;
751 }
752
753 req_free (req);
754
755 if (maxreqs && !--maxreqs)
756 break;
757
758 if (max_poll_time)
759 {
760 gettimeofday (&tv_now, 0);
761
762 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
763 break;
764 }
765 } 934 }
935 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
936 {
937 *wd = (aio_wd)(long)SvIVX (rv);
938 *wdsv = SvREFCNT_inc_NN (rv);
939 *ptr = ".";
940 return; /* path set to "." */
941 }
942 else
943 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
944 }
766 945
767 if (nreqs <= max_outstanding) 946 *pathsv = newSVsv (path);
947 *ptr = SvPVbyte_nolen (*pathsv);
948}
949
950static void ecb_noinline
951req_set_path1 (aio_req req, SV *path)
952{
953 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
954}
955
956static void ecb_noinline
957req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
958{
959 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
960
961 switch (SvTYPE (rv))
962 {
963 case SVt_PVIO:
964 case SVt_PVLV:
965 case SVt_PVGV:
966 req->type = type_fh;
967 req->sv1 = newSVsv (fh_or_path);
968 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
768 break; 969 break;
769 970
770 poll_wait (); 971 default:
771 972 req->type = type_path;
772 ++maxreqs; 973 req_set_path1 (req, fh_or_path);
974 break;
773 } 975 }
774
775 return count;
776} 976}
777 977
778static void create_pipe () 978XS(boot_IO__AIO) ecb_cold;
779{
780 if (pipe (respipe))
781 croak ("unable to initialize result pipe");
782 979
783 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
784 croak ("cannot set result pipe to nonblocking mode");
785
786 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
787 croak ("cannot set result pipe to nonblocking mode");
788}
789
790/*****************************************************************************/
791/* work around various missing functions */
792
793#if !HAVE_PREADWRITE
794# define pread aio_pread
795# define pwrite aio_pwrite
796
797/*
798 * make our pread/pwrite safe against themselves, but not against
799 * normal read/write by using a mutex. slows down execution a lot,
800 * but that's your problem, not mine.
801 */
802static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
803
804static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
805{
806 ssize_t res;
807 off_t ooffset;
808
809 LOCK (preadwritelock);
810 ooffset = lseek (fd, 0, SEEK_CUR);
811 lseek (fd, offset, SEEK_SET);
812 res = read (fd, buf, count);
813 lseek (fd, ooffset, SEEK_SET);
814 UNLOCK (preadwritelock);
815
816 return res;
817}
818
819static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
820{
821 ssize_t res;
822 off_t ooffset;
823
824 LOCK (preadwritelock);
825 ooffset = lseek (fd, 0, SEEK_CUR);
826 lseek (fd, offset, SEEK_SET);
827 res = write (fd, buf, count);
828 lseek (fd, offset, SEEK_SET);
829 UNLOCK (preadwritelock);
830
831 return res;
832}
833#endif
834
835#if !HAVE_FDATASYNC
836# define fdatasync fsync
837#endif
838
839#if !HAVE_READAHEAD
840# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
841
842static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
843{
844 dBUF;
845
846 while (count > 0)
847 {
848 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
849
850 pread (fd, aio_buf, len, offset);
851 offset += len;
852 count -= len;
853 }
854
855 errno = 0;
856}
857
858#endif
859
860#if !HAVE_READDIR_R
861# define readdir_r aio_readdir_r
862
863static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
864
865static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
866{
867 struct dirent *e;
868 int errorno;
869
870 LOCK (readdirlock);
871
872 e = readdir (dirp);
873 errorno = errno;
874
875 if (e)
876 {
877 *res = ent;
878 strcpy (ent->d_name, e->d_name);
879 }
880 else
881 *res = 0;
882
883 UNLOCK (readdirlock);
884
885 errno = errorno;
886 return e ? 0 : -1;
887}
888#endif
889
890/* sendfile always needs emulation */
891static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
892{
893 ssize_t res;
894
895 if (!count)
896 return 0;
897
898#if HAVE_SENDFILE
899# if __linux
900 res = sendfile (ofd, ifd, &offset, count);
901
902# elif __freebsd
903 /*
904 * Of course, the freebsd sendfile is a dire hack with no thoughts
905 * wasted on making it similar to other I/O functions.
906 */
907 {
908 off_t sbytes;
909 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
910
911 if (res < 0 && sbytes)
912 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
913 res = sbytes;
914 }
915
916# elif __hpux
917 res = sendfile (ofd, ifd, offset, count, 0, 0);
918
919# elif __solaris
920 {
921 struct sendfilevec vec;
922 size_t sbytes;
923
924 vec.sfv_fd = ifd;
925 vec.sfv_flag = 0;
926 vec.sfv_off = offset;
927 vec.sfv_len = count;
928
929 res = sendfilev (ofd, &vec, 1, &sbytes);
930
931 if (res < 0 && sbytes)
932 res = sbytes;
933 }
934
935# endif
936#else
937 res = -1;
938 errno = ENOSYS;
939#endif
940
941 if (res < 0
942 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
943#if __solaris
944 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
945#endif
946 )
947 )
948 {
949 /* emulate sendfile. this is a major pain in the ass */
950 dBUF;
951
952 res = 0;
953
954 while (count)
955 {
956 ssize_t cnt;
957
958 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
959
960 if (cnt <= 0)
961 {
962 if (cnt && !res) res = -1;
963 break;
964 }
965
966 cnt = write (ofd, aio_buf, cnt);
967
968 if (cnt <= 0)
969 {
970 if (cnt && !res) res = -1;
971 break;
972 }
973
974 offset += cnt;
975 res += cnt;
976 count -= cnt;
977 }
978 }
979
980 return res;
981}
982
983/* read a full directory */
984static void scandir_ (aio_req req, worker *self)
985{
986 DIR *dirp;
987 union
988 {
989 struct dirent d;
990 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
991 } *u;
992 struct dirent *entp;
993 char *name, *names;
994 int memlen = 4096;
995 int memofs = 0;
996 int res = 0;
997 int errorno;
998
999 LOCK (wrklock);
1000 self->dirp = dirp = opendir (req->ptr1);
1001 self->dbuf = u = malloc (sizeof (*u));
1002 req->ptr2 = names = malloc (memlen);
1003 UNLOCK (wrklock);
1004
1005 if (dirp && u && names)
1006 for (;;)
1007 {
1008 errno = 0;
1009 readdir_r (dirp, &u->d, &entp);
1010
1011 if (!entp)
1012 break;
1013
1014 name = entp->d_name;
1015
1016 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1017 {
1018 int len = strlen (name) + 1;
1019
1020 res++;
1021
1022 while (memofs + len > memlen)
1023 {
1024 memlen *= 2;
1025 LOCK (wrklock);
1026 req->ptr2 = names = realloc (names, memlen);
1027 UNLOCK (wrklock);
1028
1029 if (!names)
1030 break;
1031 }
1032
1033 memcpy (names + memofs, name, len);
1034 memofs += len;
1035 }
1036 }
1037
1038 if (errno)
1039 res = -1;
1040
1041 req->result = res;
1042}
1043
1044/*****************************************************************************/
1045
1046static void *aio_proc (void *thr_arg)
1047{
1048 aio_req req;
1049 struct timespec ts;
1050 worker *self = (worker *)thr_arg;
1051
1052 /* try to distribute timeouts somewhat evenly */
1053 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1054 * (1000000000UL / 1024UL);
1055
1056 for (;;)
1057 {
1058 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1059
1060 LOCK (reqlock);
1061
1062 for (;;)
1063 {
1064 self->req = req = reqq_shift (&req_queue);
1065
1066 if (req)
1067 break;
1068
1069 ++idle;
1070
1071 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1072 == ETIMEDOUT)
1073 {
1074 if (idle > max_idle)
1075 {
1076 --idle;
1077 UNLOCK (reqlock);
1078 LOCK (wrklock);
1079 --started;
1080 UNLOCK (wrklock);
1081 goto quit;
1082 }
1083
1084 /* we are allowed to idle, so do so without any timeout */
1085 pthread_cond_wait (&reqwait, &reqlock);
1086 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1087 }
1088
1089 --idle;
1090 }
1091
1092 --nready;
1093
1094 UNLOCK (reqlock);
1095
1096 errno = 0; /* strictly unnecessary */
1097
1098 if (!(req->flags & FLAG_CANCELLED))
1099 switch (req->type)
1100 {
1101 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1102 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1103
1104 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1105 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1106
1107 case REQ_STAT: req->result = stat (req->ptr1, req->statdata); break;
1108 case REQ_LSTAT: req->result = lstat (req->ptr1, req->statdata); break;
1109 case REQ_FSTAT: req->result = fstat (req->int1, req->statdata); break;
1110
1111 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1112 case REQ_CLOSE: req->result = close (req->int1); break;
1113 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1114 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1115 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1116 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1117 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1118 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1119 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1120
1121 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1122 case REQ_FSYNC: req->result = fsync (req->int1); break;
1123 case REQ_READDIR: scandir_ (req, self); break;
1124
1125 case REQ_BUSY:
1126 {
1127 struct timeval tv;
1128
1129 tv.tv_sec = req->int1;
1130 tv.tv_usec = req->int2;
1131
1132 req->result = select (0, 0, 0, 0, &tv);
1133 }
1134
1135 case REQ_GROUP:
1136 case REQ_NOP:
1137 break;
1138
1139 case REQ_QUIT:
1140 goto quit;
1141
1142 default:
1143 req->result = ENOSYS;
1144 break;
1145 }
1146
1147 req->errorno = errno;
1148
1149 LOCK (reslock);
1150
1151 ++npending;
1152
1153 if (!reqq_push (&res_queue, req))
1154 /* write a dummy byte to the pipe so fh becomes ready */
1155 write (respipe [1], &respipe, 1);
1156
1157 self->req = 0;
1158 worker_clear (self);
1159
1160 UNLOCK (reslock);
1161 }
1162
1163quit:
1164 LOCK (wrklock);
1165 worker_free (self);
1166 UNLOCK (wrklock);
1167
1168 return 0;
1169}
1170
1171/*****************************************************************************/
1172
1173static void atfork_prepare (void)
1174{
1175 LOCK (wrklock);
1176 LOCK (reqlock);
1177 LOCK (reslock);
1178#if !HAVE_PREADWRITE
1179 LOCK (preadwritelock);
1180#endif
1181#if !HAVE_READDIR_R
1182 LOCK (readdirlock);
1183#endif
1184}
1185
1186static void atfork_parent (void)
1187{
1188#if !HAVE_READDIR_R
1189 UNLOCK (readdirlock);
1190#endif
1191#if !HAVE_PREADWRITE
1192 UNLOCK (preadwritelock);
1193#endif
1194 UNLOCK (reslock);
1195 UNLOCK (reqlock);
1196 UNLOCK (wrklock);
1197}
1198
1199static void atfork_child (void)
1200{
1201 aio_req prv;
1202
1203 while (prv = reqq_shift (&req_queue))
1204 req_free (prv);
1205
1206 while (prv = reqq_shift (&res_queue))
1207 req_free (prv);
1208
1209 while (wrk_first.next != &wrk_first)
1210 {
1211 worker *wrk = wrk_first.next;
1212
1213 if (wrk->req)
1214 req_free (wrk->req);
1215
1216 worker_clear (wrk);
1217 worker_free (wrk);
1218 }
1219
1220 started = 0;
1221 idle = 0;
1222 nreqs = 0;
1223 nready = 0;
1224 npending = 0;
1225
1226 close (respipe [0]);
1227 close (respipe [1]);
1228 create_pipe ();
1229
1230 atfork_parent ();
1231}
1232
1233#define dREQ \
1234 aio_req req; \
1235 int req_pri = next_pri; \
1236 next_pri = DEFAULT_PRI + PRI_BIAS; \
1237 \
1238 if (SvOK (callback) && !SvROK (callback)) \
1239 croak ("callback must be undef or of reference type"); \
1240 \
1241 Newz (0, req, 1, aio_cb); \
1242 if (!req) \
1243 croak ("out of memory during aio_req allocation"); \
1244 \
1245 req->callback = newSVsv (callback); \
1246 req->pri = req_pri
1247
1248#define REQ_SEND \
1249 req_send (req); \
1250 \
1251 if (GIMME_V != G_VOID) \
1252 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1253
1254MODULE = IO::AIO PACKAGE = IO::AIO 980MODULE = IO::AIO PACKAGE = IO::AIO
1255 981
1256PROTOTYPES: ENABLE 982PROTOTYPES: ENABLE
1257 983
1258BOOT: 984BOOT:
1259{ 985{
986 static const struct {
987 const char *name;
988 IV iv;
989 } *civ, const_iv[] = {
990# define const_niv(name, value) { # name, (IV) value },
991# define const_iv(name) { # name, (IV) name },
992# define const_eio(name) { # name, (IV) EIO_ ## name },
993
994 /* you have to re-run ./gendef0 after adding/removing any constants here */
995 /* the first block can be undef if missing */
996 const_iv (ENOSYS)
997 const_iv (EXDEV)
998 const_iv (EBADR)
999
1000 /* for lseek */
1001 const_iv (SEEK_DATA)
1002 const_iv (SEEK_HOLE)
1003
1004 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1005 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1006 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1007 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1008 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1009 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1010
1011 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1012 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1013 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1014 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1015 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1016
1017 /* the second block will be 0 when missing */
1018 const_iv (O_RDONLY)
1019 const_iv (O_WRONLY)
1020 const_iv (O_RDWR)
1021 const_iv (O_CREAT)
1022 const_iv (O_TRUNC)
1023 const_iv (O_EXCL)
1024 const_iv (O_APPEND)
1025
1026 const_iv (O_ASYNC)
1027 const_iv (O_DIRECT)
1028 const_iv (O_NOATIME)
1029
1030 const_iv (O_CLOEXEC)
1031 const_iv (O_NOCTTY)
1032 const_iv (O_NOFOLLOW)
1033 const_iv (O_NONBLOCK)
1034 const_iv (O_EXEC)
1035 const_iv (O_SEARCH)
1036 const_iv (O_DIRECTORY)
1037 const_iv (O_DSYNC)
1038 const_iv (O_RSYNC)
1039 const_iv (O_SYNC)
1040 const_iv (O_PATH)
1041 const_iv (O_TMPFILE)
1042 const_iv (O_TTY_INIT)
1043
1044 const_iv (S_IFIFO)
1045 const_iv (S_IFCHR)
1046 const_iv (S_IFBLK)
1047 const_iv (S_IFLNK)
1048 const_iv (S_IFREG)
1049 const_iv (S_IFDIR)
1050 const_iv (S_IFWHT)
1051 const_iv (S_IFSOCK)
1052 const_iv (S_IFMT)
1053
1054 const_iv (ST_RDONLY)
1055 const_iv (ST_NOSUID)
1056 const_iv (ST_NODEV)
1057 const_iv (ST_NOEXEC)
1058 const_iv (ST_SYNCHRONOUS)
1059 const_iv (ST_MANDLOCK)
1060 const_iv (ST_WRITE)
1061 const_iv (ST_APPEND)
1062 const_iv (ST_IMMUTABLE)
1063 const_iv (ST_NOATIME)
1064 const_iv (ST_NODIRATIME)
1065 const_iv (ST_RELATIME)
1066
1067 const_iv (PROT_NONE)
1068 const_iv (PROT_EXEC)
1069 const_iv (PROT_READ)
1070 const_iv (PROT_WRITE)
1071
1072 const_iv (MAP_PRIVATE)
1073 const_iv (MAP_SHARED)
1074 const_iv (MAP_FIXED)
1075 const_iv (MAP_ANONYMOUS)
1076
1077 /* linuxish */
1078 const_iv (MAP_LOCKED)
1079 const_iv (MAP_NORESERVE)
1080 const_iv (MAP_POPULATE)
1081 const_iv (MAP_NONBLOCK)
1082 const_iv (MAP_GROWSDOWN)
1083 const_iv (MAP_32BIT)
1084 const_iv (MAP_HUGETLB)
1085 const_iv (MAP_STACK)
1086
1087 const_iv (F_DUPFD_CLOEXEC)
1088
1089 const_iv (F_OFD_GETLK)
1090 const_iv (F_OFD_SETLK)
1091 const_iv (F_OFD_GETLKW)
1092
1093 const_iv (FIFREEZE)
1094 const_iv (FITHAW)
1095 const_iv (FITRIM)
1096 const_iv (FICLONE)
1097 const_iv (FICLONERANGE)
1098 const_iv (FIDEDUPERANGE)
1099
1100 const_iv (FS_IOC_GETFLAGS)
1101 const_iv (FS_IOC_SETFLAGS)
1102 const_iv (FS_IOC_GETVERSION)
1103 const_iv (FS_IOC_SETVERSION)
1104 const_iv (FS_IOC_FIEMAP)
1105 const_iv (FS_IOC_FSGETXATTR)
1106 const_iv (FS_IOC_FSSETXATTR)
1107 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1108 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1109 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1110
1111 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1112
1113 const_iv (FS_SECRM_FL)
1114 const_iv (FS_UNRM_FL)
1115 const_iv (FS_COMPR_FL)
1116 const_iv (FS_SYNC_FL)
1117 const_iv (FS_IMMUTABLE_FL)
1118 const_iv (FS_APPEND_FL)
1119 const_iv (FS_NODUMP_FL)
1120 const_iv (FS_NOATIME_FL)
1121 const_iv (FS_DIRTY_FL)
1122 const_iv (FS_COMPRBLK_FL)
1123 const_iv (FS_NOCOMP_FL)
1124 const_iv (FS_ENCRYPT_FL)
1125 const_iv (FS_BTREE_FL)
1126 const_iv (FS_INDEX_FL)
1127 const_iv (FS_JOURNAL_DATA_FL)
1128 const_iv (FS_NOTAIL_FL)
1129 const_iv (FS_DIRSYNC_FL)
1130 const_iv (FS_TOPDIR_FL)
1131 const_iv (FS_FL_USER_MODIFIABLE)
1132
1133 const_iv (FS_XFLAG_REALTIME)
1134 const_iv (FS_XFLAG_PREALLOC)
1135 const_iv (FS_XFLAG_IMMUTABLE)
1136 const_iv (FS_XFLAG_APPEND)
1137 const_iv (FS_XFLAG_SYNC)
1138 const_iv (FS_XFLAG_NOATIME)
1139 const_iv (FS_XFLAG_NODUMP)
1140 const_iv (FS_XFLAG_RTINHERIT)
1141 const_iv (FS_XFLAG_PROJINHERIT)
1142 const_iv (FS_XFLAG_NOSYMLINKS)
1143 const_iv (FS_XFLAG_EXTSIZE)
1144 const_iv (FS_XFLAG_EXTSZINHERIT)
1145 const_iv (FS_XFLAG_NODEFRAG)
1146 const_iv (FS_XFLAG_FILESTREAM)
1147 const_iv (FS_XFLAG_DAX)
1148 const_iv (FS_XFLAG_HASATTR)
1149
1150 const_iv (FIEMAP_FLAG_SYNC)
1151 const_iv (FIEMAP_FLAG_XATTR)
1152 const_iv (FIEMAP_FLAGS_COMPAT)
1153 const_iv (FIEMAP_EXTENT_LAST)
1154 const_iv (FIEMAP_EXTENT_UNKNOWN)
1155 const_iv (FIEMAP_EXTENT_DELALLOC)
1156 const_iv (FIEMAP_EXTENT_ENCODED)
1157 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1158 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1159 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1160 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1161 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1162 const_iv (FIEMAP_EXTENT_MERGED)
1163 const_iv (FIEMAP_EXTENT_SHARED)
1164
1165 const_iv (SPLICE_F_MOVE)
1166 const_iv (SPLICE_F_NONBLOCK)
1167 const_iv (SPLICE_F_MORE)
1168 const_iv (SPLICE_F_GIFT)
1169
1170 const_iv (EFD_CLOEXEC)
1171 const_iv (EFD_NONBLOCK)
1172 const_iv (EFD_SEMAPHORE)
1173
1174 /* these are libeio constants, and are independent of gendef0 */
1175 const_eio (SEEK_SET)
1176 const_eio (SEEK_CUR)
1177 const_eio (SEEK_END)
1178
1179 const_eio (MCL_FUTURE)
1180 const_eio (MCL_CURRENT)
1181
1182 const_eio (MS_ASYNC)
1183 const_eio (MS_INVALIDATE)
1184 const_eio (MS_SYNC)
1185
1186 const_eio (MT_MODIFY)
1187
1188 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1189 const_eio (SYNC_FILE_RANGE_WRITE)
1190 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1191
1192 const_eio (FALLOC_FL_KEEP_SIZE)
1193 const_eio (FALLOC_FL_PUNCH_HOLE)
1194 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1195 const_eio (FALLOC_FL_ZERO_RANGE)
1196 const_eio (FALLOC_FL_INSERT_RANGE)
1197 const_eio (FALLOC_FL_UNSHARE_RANGE)
1198
1199 const_eio (RENAME_NOREPLACE)
1200 const_eio (RENAME_EXCHANGE)
1201 const_eio (RENAME_WHITEOUT)
1202
1203 const_eio (READDIR_DENTS)
1204 const_eio (READDIR_DIRS_FIRST)
1205 const_eio (READDIR_STAT_ORDER)
1206 const_eio (READDIR_FOUND_UNKNOWN)
1207
1208 const_eio (DT_UNKNOWN)
1209 const_eio (DT_FIFO)
1210 const_eio (DT_CHR)
1211 const_eio (DT_DIR)
1212 const_eio (DT_BLK)
1213 const_eio (DT_REG)
1214 const_eio (DT_LNK)
1215 const_eio (DT_SOCK)
1216 const_eio (DT_WHT)
1217 };
1218
1260 HV *stash = gv_stashpv ("IO::AIO", 1); 1219 aio_stash = gv_stashpv ("IO::AIO" , 1);
1220 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1221 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1222 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1261 1223
1262 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1224 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1263 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1225 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1264 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1265 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1266 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1267 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1268 1226
1269 create_pipe (); 1227 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1270 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1271}
1272 1228
1229 reinit ();
1230}
1231
1273void 1232void
1233reinit ()
1234 PROTOTYPE:
1235
1236void
1274max_poll_reqs (int nreqs) 1237max_poll_reqs (unsigned int nreqs)
1275 PROTOTYPE: $ 1238 PROTOTYPE: $
1276 CODE: 1239 CODE:
1277 max_poll_reqs = nreqs; 1240 eio_set_max_poll_reqs (nreqs);
1278 1241
1279void 1242void
1280max_poll_time (double nseconds) 1243max_poll_time (double nseconds)
1281 PROTOTYPE: $ 1244 PROTOTYPE: $
1282 CODE: 1245 CODE:
1283 max_poll_time = nseconds * AIO_TICKS; 1246 eio_set_max_poll_time (nseconds);
1284 1247
1285void 1248void
1286min_parallel (int nthreads) 1249min_parallel (unsigned int nthreads)
1287 PROTOTYPE: $
1288
1289void
1290max_parallel (int nthreads)
1291 PROTOTYPE: $
1292
1293void
1294max_idle (int nthreads)
1295 PROTOTYPE: $ 1250 PROTOTYPE: $
1296 CODE: 1251 CODE:
1297 set_max_idle (nthreads); 1252 eio_set_min_parallel (nthreads);
1298 1253
1299int 1254void
1300max_outstanding (int maxreqs) 1255max_parallel (unsigned int nthreads)
1301 PROTOTYPE: $ 1256 PROTOTYPE: $
1302 CODE: 1257 CODE:
1303 RETVAL = max_outstanding; 1258 eio_set_max_parallel (nthreads);
1259
1260void
1261max_idle (unsigned int nthreads)
1262 PROTOTYPE: $
1263 CODE:
1264 eio_set_max_idle (nthreads);
1265
1266void
1267idle_timeout (unsigned int seconds)
1268 PROTOTYPE: $
1269 CODE:
1270 eio_set_idle_timeout (seconds);
1271
1272void
1273max_outstanding (unsigned int maxreqs)
1274 PROTOTYPE: $
1275 CODE:
1304 max_outstanding = maxreqs; 1276 max_outstanding = maxreqs;
1305 OUTPUT:
1306 RETVAL
1307 1277
1308void 1278void
1309aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1279aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1310 SV * pathname
1311 int flags
1312 int mode
1313 SV * callback
1314 PROTOTYPE: $$$;$
1315 PPCODE: 1280 PPCODE:
1316{ 1281{
1317 dREQ; 1282 dREQ;
1318 1283
1284 req->type = EIO_WD_OPEN;
1285 req_set_path1 (req, pathname);
1286
1287 REQ_SEND;
1288}
1289
1290void
1291aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1319 req->type = REQ_OPEN; 1296 req->type = EIO_OPEN;
1320 req->sv1 = newSVsv (pathname); 1297 req_set_path1 (req, pathname);
1321 req->ptr1 = SvPVbyte_nolen (pathname);
1322 req->int1 = flags; 1298 req->int1 = flags;
1323 req->mode = mode; 1299 req->int2 = mode;
1324 1300
1325 REQ_SEND; 1301 REQ_SEND;
1326} 1302}
1327 1303
1328void 1304void
1329aio_close (fh,callback=&PL_sv_undef) 1305aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1330 SV * fh
1331 SV * callback
1332 PROTOTYPE: $;$
1333 ALIAS: 1306 ALIAS:
1334 aio_close = REQ_CLOSE
1335 aio_fsync = REQ_FSYNC 1307 aio_fsync = EIO_FSYNC
1336 aio_fdatasync = REQ_FDATASYNC 1308 aio_fdatasync = EIO_FDATASYNC
1309 aio_syncfs = EIO_SYNCFS
1337 PPCODE: 1310 PPCODE:
1338{ 1311{
1312 int fd = s_fileno_croak (fh, 0);
1339 dREQ; 1313 dREQ;
1340 1314
1341 req->type = ix; 1315 req->type = ix;
1342 req->fh = newSVsv (fh); 1316 req->sv1 = newSVsv (fh);
1343 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1317 req->int1 = fd;
1344 1318
1345 REQ_SEND (req); 1319 REQ_SEND;
1346} 1320}
1347 1321
1348void 1322void
1323aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1324 PPCODE:
1325{
1326 int fd = s_fileno_croak (fh, 0);
1327 dREQ;
1328
1329 req->type = EIO_SYNC_FILE_RANGE;
1330 req->sv1 = newSVsv (fh);
1331 req->int1 = fd;
1332 req->offs = offset;
1333 req->size = nbytes;
1334 req->int2 = flags;
1335
1336 REQ_SEND;
1337}
1338
1339void
1340aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1341 PPCODE:
1342{
1343 int fd = s_fileno_croak (fh, 0);
1344 dREQ;
1345
1346 req->type = EIO_FALLOCATE;
1347 req->sv1 = newSVsv (fh);
1348 req->int1 = fd;
1349 req->int2 = mode;
1350 req->offs = offset;
1351 req->size = len;
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_close (SV *fh, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1361 int fd = s_fileno_croak (fh, 0);
1362 dREQ;
1363
1364 if (expect_false (close_fd < 0))
1365 {
1366 int pipefd [2];
1367
1368 if (
1369#ifdef _WIN32
1370 _pipe (pipefd, 1, _O_BINARY) < 0
1371#else
1372 pipe (pipefd) < 0
1373 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1374#endif
1375 || close (pipefd [1]) < 0
1376 )
1377 abort (); /*D*/
1378
1379 close_fd = pipefd [0];
1380 }
1381
1382 req->type = EIO_DUP2;
1383 req->int1 = close_fd;
1384 req->sv2 = newSVsv (fh);
1385 req->int2 = fd;
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1392 PPCODE:
1393{
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 req->type = EIO_SEEK;
1398 req->sv1 = newSVsv (fh);
1399 req->int1 = fd;
1400 req->offs = SvVAL64 (offset);
1401 req->int2 = whence;
1402
1403 REQ_SEND;
1404}
1405
1406void
1349aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1407aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1350 SV * fh
1351 UV offset
1352 UV length
1353 SV * data
1354 UV dataoffset
1355 SV * callback
1356 ALIAS: 1408 ALIAS:
1357 aio_read = REQ_READ 1409 aio_read = EIO_READ
1358 aio_write = REQ_WRITE 1410 aio_write = EIO_WRITE
1359 PROTOTYPE: $$$$$;$
1360 PPCODE: 1411 PPCODE:
1361{ 1412{
1362 STRLEN svlen; 1413 STRLEN svlen;
1414 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1363 char *svptr = SvPVbyte (data, svlen); 1415 char *svptr = SvPVbyte (data, svlen);
1364 1416 UV len = SvUV (length);
1365 SvUPGRADE (data, SVt_PV);
1366 SvPOK_on (data);
1367 1417
1368 if (dataoffset < 0) 1418 if (dataoffset < 0)
1369 dataoffset += svlen; 1419 dataoffset += svlen;
1370 1420
1371 if (dataoffset < 0 || dataoffset > svlen) 1421 if (dataoffset < 0 || dataoffset > svlen)
1372 croak ("data offset outside of string"); 1422 croak ("dataoffset outside of data scalar");
1373 1423
1374 if (ix == REQ_WRITE) 1424 if (ix == EIO_WRITE)
1375 { 1425 {
1376 /* write: check length and adjust. */ 1426 /* write: check length and adjust. */
1377 if (length < 0 || length + dataoffset > svlen) 1427 if (!SvOK (length) || len + dataoffset > svlen)
1378 length = svlen - dataoffset; 1428 len = svlen - dataoffset;
1379 } 1429 }
1380 else 1430 else
1381 { 1431 {
1382 /* read: grow scalar as necessary */ 1432 /* read: check type and grow scalar as necessary */
1433 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1383 svptr = SvGROW (data, length + dataoffset); 1434 svptr = sv_grow (data, len + dataoffset + 1);
1435 else if (SvCUR (data) < len + dataoffset)
1436 croak ("length + dataoffset outside of scalar, and cannot grow");
1384 } 1437 }
1385
1386 if (length < 0)
1387 croak ("length must not be negative");
1388 1438
1389 { 1439 {
1390 dREQ; 1440 dREQ;
1391 1441
1392 req->type = ix; 1442 req->type = ix;
1393 req->fh = newSVsv (fh); 1443 req->sv1 = newSVsv (fh);
1394 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1444 req->int1 = fd;
1395 : IoOFP (sv_2io (fh))); 1445 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1396 req->offs = offset;
1397 req->size = length; 1446 req->size = len;
1398 req->sv1 = SvREFCNT_inc (data); 1447 req->sv2 = SvREFCNT_inc (data);
1399 req->ptr1 = (char *)svptr + dataoffset; 1448 req->ptr2 = (char *)svptr + dataoffset;
1400 req->stroffset = dataoffset; 1449 req->stroffset = dataoffset;
1401 1450
1402 if (!SvREADONLY (data)) 1451 if (!SvREADONLY (data))
1403 { 1452 {
1404 SvREADONLY_on (data); 1453 SvREADONLY_on (data);
1405 req->flags |= FLAG_DATA_RO_OFF; 1454 req->flags |= FLAG_SV2_RO_OFF;
1406 } 1455 }
1407 1456
1408 REQ_SEND; 1457 REQ_SEND;
1409 } 1458 }
1410} 1459}
1411 1460
1412void 1461void
1413aio_readlink (path,callback=&PL_sv_undef) 1462aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1414 SV * path 1463 ALIAS:
1415 SV * callback 1464 aio_ioctl = EIO_IOCTL
1416 PROTOTYPE: $$;$ 1465 aio_fcntl = EIO_FCNTL
1417 PPCODE: 1466 PPCODE:
1418{ 1467{
1419 SV *data; 1468 int fd = s_fileno_croak (fh, 0);
1469 char *svptr;
1470
1471 if (SvPOK (arg) || !SvNIOK (arg))
1472 {
1473 STRLEN svlen;
1474 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1475#ifdef IOCPARM_LEN
1476 STRLEN need = IOCPARM_LEN (request);
1477#else
1478 STRLEN need = 256;
1479#endif
1480
1481 if (svlen < need)
1482 svptr = SvGROW (arg, need);
1483 }
1484 else
1485 svptr = (char *)SvIV (arg);
1486
1487 {
1488 dREQ;
1489
1490 req->type = ix;
1491 req->sv1 = newSVsv (fh);
1492 req->int1 = fd;
1493 req->int2 = (long)request;
1494 req->sv2 = SvREFCNT_inc (arg);
1495 req->ptr2 = svptr;
1496
1497 REQ_SEND;
1498 }
1499}
1500
1501void
1502aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1503 ALIAS:
1504 aio_readlink = EIO_READLINK
1505 aio_realpath = EIO_REALPATH
1506 PPCODE:
1507{
1420 dREQ; 1508 dREQ;
1421 1509
1422 data = newSV (NAME_MAX);
1423 SvPOK_on (data);
1424
1425 req->type = REQ_READLINK; 1510 req->type = ix;
1426 req->fh = newSVsv (path); 1511 req_set_path1 (req, pathname);
1427 req->ptr2 = SvPVbyte_nolen (path);
1428 req->sv1 = data;
1429 req->ptr1 = SvPVbyte_nolen (data);
1430 1512
1431 REQ_SEND; 1513 REQ_SEND;
1432} 1514}
1433 1515
1434void 1516void
1435aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1517aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1436 SV * out_fh
1437 SV * in_fh
1438 UV in_offset
1439 UV length
1440 SV * callback
1441 PROTOTYPE: $$$$;$
1442 PPCODE: 1518 PPCODE:
1443{ 1519{
1520 int ifd = s_fileno_croak (in_fh , 0);
1521 int ofd = s_fileno_croak (out_fh, 1);
1444 dREQ; 1522 dREQ;
1445 1523
1446 req->type = REQ_SENDFILE; 1524 req->type = EIO_SENDFILE;
1447 req->fh = newSVsv (out_fh); 1525 req->sv1 = newSVsv (out_fh);
1448 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1526 req->int1 = ofd;
1449 req->sv2 = newSVsv (in_fh); 1527 req->sv2 = newSVsv (in_fh);
1450 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1528 req->int2 = ifd;
1451 req->offs = in_offset; 1529 req->offs = in_offset;
1452 req->size = length; 1530 req->size = length;
1453 1531
1454 REQ_SEND; 1532 REQ_SEND;
1455} 1533}
1456 1534
1457void 1535void
1458aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1536aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1459 SV * fh
1460 UV offset
1461 IV length
1462 SV * callback
1463 PROTOTYPE: $$$;$
1464 PPCODE: 1537 PPCODE:
1465{ 1538{
1539 int fd = s_fileno_croak (fh, 0);
1466 dREQ; 1540 dREQ;
1467 1541
1468 req->type = REQ_READAHEAD; 1542 req->type = EIO_READAHEAD;
1469 req->fh = newSVsv (fh); 1543 req->sv1 = newSVsv (fh);
1470 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1544 req->int1 = fd;
1471 req->offs = offset; 1545 req->offs = offset;
1472 req->size = length; 1546 req->size = length;
1473 1547
1474 REQ_SEND; 1548 REQ_SEND;
1475} 1549}
1476 1550
1477void 1551void
1478aio_stat (fh_or_path,callback=&PL_sv_undef) 1552aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1479 SV * fh_or_path
1480 SV * callback
1481 ALIAS: 1553 ALIAS:
1482 aio_stat = REQ_STAT 1554 aio_stat = EIO_STAT
1483 aio_lstat = REQ_LSTAT 1555 aio_lstat = EIO_LSTAT
1556 aio_statvfs = EIO_STATVFS
1484 PPCODE: 1557 PPCODE:
1485{ 1558{
1486 dREQ; 1559 dREQ;
1487 1560
1488 New (0, req->statdata, 1, Stat_t); 1561 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1489 if (!req->statdata)
1490 {
1491 req_free (req);
1492 croak ("out of memory during aio_req->statdata allocation");
1493 }
1494
1495 if (SvPOK (fh_or_path))
1496 {
1497 req->type = ix;
1498 req->sv1 = newSVsv (fh_or_path);
1499 req->ptr1 = SvPVbyte_nolen (fh_or_path);
1500 }
1501 else
1502 {
1503 req->type = REQ_FSTAT;
1504 req->fh = newSVsv (fh_or_path);
1505 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1506 }
1507 1562
1508 REQ_SEND; 1563 REQ_SEND;
1509} 1564}
1510 1565
1566UV
1567major (UV dev)
1568 ALIAS:
1569 minor = 1
1570 CODE:
1571 RETVAL = ix ? minor (dev) : major (dev);
1572 OUTPUT:
1573 RETVAL
1574
1575UV
1576makedev (UV maj, UV min)
1577 CODE:
1578 RETVAL = makedev (maj, min);
1579 OUTPUT:
1580 RETVAL
1581
1511void 1582void
1583aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1584 PPCODE:
1585{
1586 dREQ;
1587
1588 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1589 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1590 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1591
1592 REQ_SEND;
1593}
1594
1595void
1596aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1602 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 dREQ;
1612
1613 req->int2 = mode;
1614 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1615
1616 REQ_SEND;
1617}
1618
1619void
1620aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1626 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1627 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1628
1629 REQ_SEND;
1630}
1631
1632void
1633aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req->type = EIO_READDIR;
1639 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1640
1641 if (flags & EIO_READDIR_DENTS)
1642 req->int1 |= EIO_READDIR_CUSTOM2;
1643
1644 req_set_path1 (req, pathname);
1645
1646 REQ_SEND;
1647}
1648
1649void
1650aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1651 PPCODE:
1652{
1653 dREQ;
1654
1655 req->type = EIO_MKDIR;
1656 req->int2 = mode;
1657 req_set_path1 (req, pathname);
1658
1659 REQ_SEND;
1660}
1661
1662void
1512aio_unlink (pathname,callback=&PL_sv_undef) 1663aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1513 SV * pathname
1514 SV * callback
1515 ALIAS: 1664 ALIAS:
1516 aio_unlink = REQ_UNLINK 1665 aio_unlink = EIO_UNLINK
1517 aio_rmdir = REQ_RMDIR 1666 aio_rmdir = EIO_RMDIR
1518 aio_readdir = REQ_READDIR 1667 aio_readdir = EIO_READDIR
1519 PPCODE: 1668 PPCODE:
1520{ 1669{
1521 dREQ; 1670 dREQ;
1522 1671
1523 req->type = ix; 1672 req->type = ix;
1524 req->sv1 = newSVsv (pathname); 1673 req_set_path1 (req, pathname);
1525 req->ptr1 = SvPVbyte_nolen (pathname); 1674
1526
1527 REQ_SEND; 1675 REQ_SEND;
1528} 1676}
1529 1677
1530void 1678void
1531aio_link (oldpath,newpath,callback=&PL_sv_undef) 1679aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1532 SV * oldpath
1533 SV * newpath
1534 SV * callback
1535 ALIAS: 1680 ALIAS:
1536 aio_link = REQ_LINK 1681 aio_link = EIO_LINK
1537 aio_symlink = REQ_SYMLINK 1682 aio_symlink = EIO_SYMLINK
1538 aio_rename = REQ_RENAME 1683 aio_rename = EIO_RENAME
1539 PPCODE: 1684 PPCODE:
1540{ 1685{
1686 eio_wd wd2 = 0;
1541 dREQ; 1687 dREQ;
1542 1688
1543 req->type = ix; 1689 req->type = ix;
1544 req->fh = newSVsv (oldpath); 1690 req_set_path1 (req, oldpath);
1545 req->ptr2 = SvPVbyte_nolen (req->fh); 1691 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1546 req->sv1 = newSVsv (newpath); 1692 req->int3 = (long)wd2;
1547 req->ptr1 = SvPVbyte_nolen (newpath);
1548 1693
1549 REQ_SEND; 1694 REQ_SEND;
1550} 1695}
1551 1696
1552void 1697void
1553aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1698aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1554 SV * pathname
1555 SV * callback
1556 UV mode
1557 UV dev
1558 PPCODE: 1699 PPCODE:
1559{ 1700{
1701 eio_wd wd2 = 0;
1560 dREQ; 1702 dREQ;
1561 1703
1562 req->type = REQ_MKNOD; 1704 req->type = EIO_RENAME;
1563 req->sv1 = newSVsv (pathname); 1705 req_set_path1 (req, oldpath);
1564 req->ptr1 = SvPVbyte_nolen (pathname); 1706 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1565 req->mode = (mode_t)mode; 1707 req->int2 = flags;
1566 req->offs = dev; 1708 req->int3 = (long)wd2;
1567 1709
1568 REQ_SEND; 1710 REQ_SEND;
1569} 1711}
1570 1712
1571void 1713void
1572aio_busy (delay,callback=&PL_sv_undef) 1714aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1573 double delay
1574 SV * callback
1575 PPCODE: 1715 PPCODE:
1576{ 1716{
1577 dREQ; 1717 dREQ;
1578 1718
1579 req->type = REQ_BUSY; 1719 req->type = EIO_MKNOD;
1580 req->int1 = delay < 0. ? 0 : delay; 1720 req->int2 = (mode_t)mode;
1581 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1721 req->offs = dev;
1582 1722 req_set_path1 (req, pathname);
1723
1583 REQ_SEND; 1724 REQ_SEND;
1584} 1725}
1585 1726
1586void 1727void
1587aio_group (callback=&PL_sv_undef) 1728aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1588 SV * callback 1729 ALIAS:
1589 PROTOTYPE: ;$ 1730 aio_mtouch = EIO_MTOUCH
1731 aio_msync = EIO_MSYNC
1590 PPCODE: 1732 PPCODE:
1591{ 1733{
1734 STRLEN svlen;
1735 char *svptr = SvPVbyte (data, svlen);
1736 UV len = SvUV (length);
1737
1738 if (flags < 0)
1739 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 {
1751 dREQ;
1752
1753 req->type = ix;
1754 req->sv2 = SvREFCNT_inc (data);
1755 req->ptr2 = (char *)svptr + offset;
1756 req->size = len;
1757 req->int1 = flags;
1758
1759 REQ_SEND;
1760 }
1761}
1762
1763void
1764aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (offset < 0)
1772 offset += svlen;
1773
1774 if (offset < 0 || offset > svlen)
1775 croak ("offset outside of scalar");
1776
1777 if (!SvOK (length) || len + offset > svlen)
1778 len = svlen - offset;
1779
1780 {
1781 dREQ;
1782
1783 req->type = EIO_MLOCK;
1784 req->sv2 = SvREFCNT_inc (data);
1785 req->ptr2 = (char *)svptr + offset;
1786 req->size = len;
1787
1788 REQ_SEND;
1789 }
1790}
1791
1792void
1793aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1794 PPCODE:
1795{
1796 dREQ;
1797
1798 req->type = EIO_MLOCKALL;
1799 req->int1 = flags;
1800
1801 REQ_SEND;
1802}
1803
1804void
1805aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1806 PPCODE:
1807{
1808 int fd = s_fileno_croak (fh, 0);
1592 dREQ; 1809 dREQ;
1593 1810
1594 req->type = REQ_GROUP; 1811 req->type = EIO_CUSTOM;
1812 req->sv1 = newSVsv (fh);
1813 req->int1 = fd;
1595 1814
1596 req_send (req); 1815 req->feed = fiemap;
1597 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1816#if HAVE_FIEMAP
1598} 1817 /* keep our fingers crossed that the next two types are 64 bit */
1818 req->offs = start;
1819 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1820 req->int2 = flags;
1821 req->int3 = SvOK (count) ? SvIV (count) : -1;
1822#endif
1599 1823
1824 REQ_SEND;
1825}
1826
1600void 1827void
1601aio_nop (callback=&PL_sv_undef) 1828aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1602 SV * callback 1829 PPCODE:
1830{
1831 char *svptr = 0;
1832
1833 sv_clear_foreign (data);
1834
1835 if (length) /* known length, directly read into scalar */
1836 {
1837 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1838 svptr = sv_grow (data, length + 1);
1839 else if (SvCUR (data) < length)
1840 croak ("length outside of scalar, and cannot grow");
1841 else
1842 svptr = SvPVbyte_nolen (data);
1843 }
1844
1845 {
1846 dREQ;
1847
1848 req->type = EIO_SLURP;
1849 req_set_path1 (req, pathname);
1850 req->offs = offset;
1851 req->size = length;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = svptr;
1854
1855 if (!SvREADONLY (data))
1856 {
1857 SvREADONLY_on (data);
1858 req->flags |= FLAG_SV2_RO_OFF;
1859 }
1860
1861 REQ_SEND;
1862 }
1863}
1864
1865void
1866aio_busy (double delay, SV *callback = &PL_sv_undef)
1603 PPCODE: 1867 PPCODE:
1604{ 1868{
1605 dREQ; 1869 dREQ;
1606 1870
1607 req->type = REQ_NOP; 1871 req->type = EIO_BUSY;
1872 req->nv1 = delay < 0. ? 0. : delay;
1608 1873
1609 REQ_SEND; 1874 REQ_SEND;
1610} 1875}
1611 1876
1877void
1878aio_group (SV *callback = &PL_sv_undef)
1879 PPCODE:
1880{
1881 dREQ;
1882
1883 req->type = EIO_GROUP;
1884
1885 PUTBACK;
1886 req_submit (req);
1887 SPAGAIN;
1888
1889 XPUSHs (req_sv (req, aio_grp_stash));
1890}
1891
1892void
1893aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS:
1895 aio_nop = EIO_NOP
1896 aio_sync = EIO_SYNC
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = ix;
1902
1903 REQ_SEND;
1904}
1905
1612int 1906int
1613aioreq_pri (int pri = 0) 1907aioreq_pri (int pri = NO_INIT)
1614 PROTOTYPE: ;$
1615 CODE: 1908 CODE:
1616 RETVAL = next_pri - PRI_BIAS; 1909 RETVAL = next_pri;
1617 if (items > 0) 1910 if (items > 0)
1618 { 1911 {
1619 if (pri < PRI_MIN) pri = PRI_MIN; 1912 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1620 if (pri > PRI_MAX) pri = PRI_MAX; 1913 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1621 next_pri = pri + PRI_BIAS; 1914 next_pri = pri;
1622 } 1915 }
1623 OUTPUT: 1916 OUTPUT:
1624 RETVAL 1917 RETVAL
1625 1918
1626void 1919void
1627aioreq_nice (int nice = 0) 1920aioreq_nice (int nice = 0)
1628 CODE: 1921 CODE:
1629 nice = next_pri - nice; 1922 nice = next_pri - nice;
1630 if (nice < PRI_MIN) nice = PRI_MIN; 1923 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1631 if (nice > PRI_MAX) nice = PRI_MAX; 1924 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1632 next_pri = nice + PRI_BIAS; 1925 next_pri = nice;
1633 1926
1634void 1927void
1635flush () 1928flush ()
1636 PROTOTYPE:
1637 CODE: 1929 CODE:
1638 while (nreqs) 1930 while (eio_nreqs ())
1639 { 1931 {
1640 poll_wait (); 1932 poll_wait ();
1641 poll_cb (0); 1933 poll_cb ();
1642 } 1934 }
1643 1935
1644void 1936int
1645poll() 1937poll ()
1646 PROTOTYPE:
1647 CODE: 1938 CODE:
1648 if (nreqs)
1649 {
1650 poll_wait (); 1939 poll_wait ();
1651 poll_cb (0); 1940 RETVAL = poll_cb ();
1652 }
1653
1654int
1655poll_fileno()
1656 PROTOTYPE:
1657 CODE:
1658 RETVAL = respipe [0];
1659 OUTPUT: 1941 OUTPUT:
1660 RETVAL 1942 RETVAL
1661 1943
1662int 1944int
1945poll_fileno ()
1946 CODE:
1947 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT:
1949 RETVAL
1950
1951int
1663poll_cb(...) 1952poll_cb (...)
1664 PROTOTYPE: 1953 PROTOTYPE:
1665 CODE: 1954 CODE:
1666 RETVAL = poll_cb (); 1955 RETVAL = poll_cb ();
1667 OUTPUT: 1956 OUTPUT:
1668 RETVAL 1957 RETVAL
1669 1958
1670void 1959void
1671poll_wait() 1960poll_wait ()
1672 PROTOTYPE:
1673 CODE: 1961 CODE:
1674 if (nreqs)
1675 poll_wait (); 1962 poll_wait ();
1676 1963
1677int 1964int
1678nreqs() 1965nreqs ()
1679 PROTOTYPE:
1680 CODE: 1966 CODE:
1681 RETVAL = nreqs; 1967 RETVAL = eio_nreqs ();
1682 OUTPUT: 1968 OUTPUT:
1683 RETVAL 1969 RETVAL
1684 1970
1685int 1971int
1686nready() 1972nready ()
1687 PROTOTYPE:
1688 CODE: 1973 CODE:
1689 RETVAL = get_nready (); 1974 RETVAL = eio_nready ();
1690 OUTPUT: 1975 OUTPUT:
1691 RETVAL 1976 RETVAL
1692 1977
1693int 1978int
1694npending() 1979npending ()
1695 PROTOTYPE:
1696 CODE: 1980 CODE:
1697 RETVAL = get_npending (); 1981 RETVAL = eio_npending ();
1698 OUTPUT: 1982 OUTPUT:
1699 RETVAL 1983 RETVAL
1700 1984
1701int 1985int
1702nthreads() 1986nthreads ()
1703 PROTOTYPE:
1704 CODE: 1987 CODE:
1705 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1988 RETVAL = eio_nthreads ();
1706 RETVAL = started;
1707 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1708 OUTPUT: 1989 OUTPUT:
1709 RETVAL 1990 RETVAL
1710 1991
1992int
1993fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1994 CODE:
1995 RETVAL = posix_fadvise (fh, offset, length, advice);
1996 OUTPUT:
1997 RETVAL
1998
1999IV
2000sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2001 CODE:
2002 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2003 OUTPUT:
2004 RETVAL
2005
2006void
2007mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2008 PPCODE:
2009 sv_clear_foreign (scalar);
2010{
2011 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2012 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2013 if (addr == (void *)-1)
2014 XSRETURN_NO;
2015
2016 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2017
2018 if (!(prot & PROT_WRITE))
2019 SvREADONLY_on (scalar);
2020
2021 XSRETURN_YES;
2022}
2023
2024void
2025munmap (SV *scalar)
2026 CODE:
2027 sv_clear_foreign (scalar);
2028
2029int
2030madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2031 ALIAS:
2032 mprotect = 1
2033 CODE:
2034{
2035 STRLEN svlen;
2036 void *addr = SvPVbyte (scalar, svlen);
2037 STRLEN len = SvUV (length);
2038
2039 if (offset < 0)
2040 offset += svlen;
2041
2042 if (offset < 0 || offset > svlen)
2043 croak ("offset outside of scalar");
2044
2045 if (!SvOK (length) || len + offset > svlen)
2046 len = svlen - offset;
2047
2048 addr = (void *)(((intptr_t)addr) + offset);
2049 eio_page_align (&addr, &len);
2050
2051 switch (ix)
2052 {
2053 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2054 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2055 }
2056}
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2062 CODE:
2063{
2064 STRLEN svlen;
2065 void *addr = SvPVbyte (scalar, svlen);
2066 size_t len = SvUV (length);
2067
2068 if (offset < 0)
2069 offset += svlen;
2070
2071 if (offset < 0 || offset > svlen)
2072 croak ("offset outside of scalar");
2073
2074 if (!SvOK (length) || len + offset > svlen)
2075 len = svlen - offset;
2076
2077 addr = (void *)(((intptr_t)addr) + offset);
2078 eio_page_align (&addr, &len);
2079#if _POSIX_MEMLOCK_RANGE
2080 RETVAL = munlock (addr, len);
2081#else
2082 RETVAL = EIO_ENOSYS ();
2083#endif
2084}
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089munlockall ()
2090 CODE:
2091#if _POSIX_MEMLOCK
2092 munlockall ();
2093#else
2094 RETVAL = EIO_ENOSYS ();
2095#endif
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2101 CODE:
2102{
2103#if HAVE_LINUX_SPLICE
2104 loff_t off_in_, off_out_;
2105 RETVAL = splice (
2106 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2107 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2108 length, flags
2109 );
2110#else
2111 RETVAL = EIO_ENOSYS ();
2112#endif
2113}
2114 OUTPUT:
2115 RETVAL
2116
2117int
2118tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2119 CODE:
2120#if HAVE_LINUX_SPLICE
2121 RETVAL = tee (rfh, wfh, length, flags);
2122#else
2123 RETVAL = EIO_ENOSYS ();
2124#endif
2125 OUTPUT:
2126 RETVAL
2127
2128int
2129pipesize (aio_rfd rfh, int new_size = -1)
2130 PROTOTYPE: $;$
2131 CODE:
2132#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2133 if (new_size >= 0)
2134 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2135 else
2136 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2137#else
2138 errno = ENOSYS;
2139 RETVAL = -1;
2140#endif
2141 OUTPUT:
2142 RETVAL
2143
2144void
2145pipe2 (int flags = 0)
2146 PROTOTYPE: ;$
2147 PPCODE:
2148{
2149 int fd[2];
2150 int res;
2151
2152 if (flags)
2153#if HAVE_PIPE2
2154 res = pipe2 (fd, flags);
2155#else
2156 res = (errno = ENOSYS, -1);
2157#endif
2158 else
2159 res = pipe (fd);
2160
2161 if (!res)
2162 {
2163 EXTEND (SP, 2);
2164 PUSHs (newmortalFH (fd[0], O_RDONLY));
2165 PUSHs (newmortalFH (fd[1], O_WRONLY));
2166 }
2167}
2168
2169void
2170eventfd (unsigned int initval = 0, int flags = 0)
2171 PPCODE:
2172{
2173 int fd;
2174#if HAVE_EVENTFD
2175 fd = eventfd (initval, flags);
2176#else
2177 fd = (errno = ENOSYS, -1);
2178#endif
2179
2180 XPUSHs (newmortalFH (fd, O_RDWR));
2181}
2182
2183UV
2184get_fdlimit ()
2185 CODE:
2186#if HAVE_RLIMITS
2187 struct rlimit rl;
2188 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2189 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2190#endif
2191 XSRETURN_UNDEF;
2192 OUTPUT:
2193 RETVAL
2194
2195void
2196min_fdlimit (UV limit = 0x7fffffffU)
2197 CODE:
2198{
2199#if HAVE_RLIMITS
2200 struct rlimit rl;
2201 rlim_t orig_rlim_max;
2202 UV bit;
2203
2204 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2205 goto fail;
2206
2207 if (rl.rlim_cur == RLIM_INFINITY)
2208 XSRETURN_YES;
2209
2210 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2211
2212 if (rl.rlim_cur < limit)
2213 {
2214 rl.rlim_cur = limit;
2215
2216 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2217 rl.rlim_max = rl.rlim_cur;
2218 }
2219
2220 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2221 XSRETURN_YES;
2222
2223 if (errno == EPERM)
2224 {
2225 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2226 /* our limit overflows a system-wide limit */
2227 /* try an adaptive algorithm, but do not lower the hardlimit */
2228 rl.rlim_max = 0;
2229 for (bit = 0x40000000U; bit; bit >>= 1)
2230 {
2231 rl.rlim_max |= bit;
2232 rl.rlim_cur = rl.rlim_max;
2233
2234 /* nevr decrease the hard limit */
2235 if (rl.rlim_max < orig_rlim_max)
2236 break;
2237
2238 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2239 rl.rlim_max &= ~bit; /* too high, remove bit again */
2240 }
2241
2242 /* now, raise the soft limit to the max permitted */
2243 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2244 {
2245 rl.rlim_cur = rl.rlim_max;
2246 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2247 errno = EPERM;
2248 }
2249 }
2250#endif
2251 fail:
2252 XSRETURN_UNDEF;
2253}
2254
2255void _on_next_submit (SV *cb)
2256 CODE:
2257 SvREFCNT_dec (on_next_submit);
2258 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2259
1711PROTOTYPES: DISABLE 2260PROTOTYPES: DISABLE
2261
2262MODULE = IO::AIO PACKAGE = IO::AIO::WD
2263
2264BOOT:
2265{
2266 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2267 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2268}
2269
2270void
2271DESTROY (SV *self)
2272 CODE:
2273{
2274 aio_wd wd = SvAIO_WD (self);
2275#if HAVE_AT
2276 {
2277 SV *callback = &PL_sv_undef;
2278 dREQ; /* clobbers next_pri :/ */
2279 next_pri = req->pri; /* restore next_pri */
2280 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2281 req->type = EIO_WD_CLOSE;
2282 req->wd = wd;
2283 REQ_SEND;
2284 }
2285#else
2286 eio_wd_close_sync (wd);
2287#endif
2288}
1712 2289
1713MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2290MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1714 2291
1715void 2292void
1716cancel (aio_req_ornot req) 2293cancel (aio_req_ornot req)
1717 CODE: 2294 CODE:
1718 req_cancel (req); 2295 eio_cancel (req);
1719 2296
1720void 2297void
1721cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2298cb (aio_req_ornot req, SV *callback = NO_INIT)
1722 CODE: 2299 PPCODE:
2300{
2301 if (GIMME_V != G_VOID)
2302 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2303
2304 if (items > 1)
2305 {
2306 SV *cb_cv = get_cb (callback);
2307
1723 SvREFCNT_dec (req->callback); 2308 SvREFCNT_dec (req->callback);
1724 req->callback = newSVsv (callback); 2309 req->callback = SvREFCNT_inc (cb_cv);
2310 }
2311}
1725 2312
1726MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2313MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1727 2314
1728void 2315void
1729add (aio_req grp, ...) 2316add (aio_req grp, ...)
1730 PPCODE: 2317 PPCODE:
1731{ 2318{
1732 int i; 2319 int i;
1733 aio_req req;
1734 2320
1735 if (grp->int1 == 2) 2321 if (grp->int1 == 2)
1736 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2322 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1737 2323
1738 for (i = 1; i < items; ++i ) 2324 for (i = 1; i < items; ++i )
1739 { 2325 {
2326 aio_req req;
2327
1740 if (GIMME_V != G_VOID) 2328 if (GIMME_V != G_VOID)
1741 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2329 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1742 2330
1743 req = SvAIO_REQ (ST (i)); 2331 req = SvAIO_REQ (ST (i));
1744 2332
1745 if (req) 2333 if (req)
1746 { 2334 eio_grp_add (grp, req);
1747 ++grp->size;
1748 req->grp = grp;
1749
1750 req->grp_prev = 0;
1751 req->grp_next = grp->grp_first;
1752
1753 if (grp->grp_first)
1754 grp->grp_first->grp_prev = req;
1755
1756 grp->grp_first = req;
1757 }
1758 } 2335 }
1759} 2336}
1760 2337
1761void 2338void
1762cancel_subs (aio_req_ornot req) 2339cancel_subs (aio_req_ornot req)
… …
1771 AV *av; 2348 AV *av;
1772 2349
1773 grp->errorno = errno; 2350 grp->errorno = errno;
1774 2351
1775 av = newAV (); 2352 av = newAV ();
2353 av_extend (av, items - 1);
1776 2354
1777 for (i = 1; i < items; ++i ) 2355 for (i = 1; i < items; ++i )
1778 av_push (av, newSVsv (ST (i))); 2356 av_push (av, newSVsv (ST (i)));
1779 2357
1780 SvREFCNT_dec (grp->sv1); 2358 SvREFCNT_dec (grp->sv1);
… …
1787 grp->errorno = errorno; 2365 grp->errorno = errorno;
1788 2366
1789void 2367void
1790limit (aio_req grp, int limit) 2368limit (aio_req grp, int limit)
1791 CODE: 2369 CODE:
1792 grp->int2 = limit; 2370 eio_grp_limit (grp, limit);
1793 aio_grp_feed (grp);
1794 2371
1795void 2372void
1796feed (aio_req grp, SV *callback=&PL_sv_undef) 2373feed (aio_req grp, SV *callback = &PL_sv_undef)
1797 CODE: 2374 CODE:
1798{ 2375{
1799 SvREFCNT_dec (grp->sv2); 2376 SvREFCNT_dec (grp->sv2);
1800 grp->sv2 = newSVsv (callback); 2377 grp->sv2 = newSVsv (callback);
2378 grp->feed = aio_grp_feed;
1801 2379
1802 if (grp->int2 <= 0) 2380 if (grp->int2 <= 0)
1803 grp->int2 = 2; 2381 grp->int2 = 2;
1804 2382
1805 aio_grp_feed (grp); 2383 eio_grp_limit (grp, grp->int2);
1806} 2384}
1807 2385

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