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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC vs.
Revision 1.287 by root, Tue Dec 29 15:28:02 2020 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
8 9
9#include "autoconf/config.h" 10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
10 13
11#include <stddef.h> 14#include <stddef.h>
12#include <stdlib.h> 15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
17#include <sys/stat.h> 19#include <sys/stat.h>
18#include <limits.h> 20#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 21#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 22#include <sched.h>
23 23
24#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
25# if __linux 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 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
26# include <sys/sendfile.h> 88 #include <sys/select.h>
27# elif __freebsd 89 #include <sys/wait.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
28# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
29# include <sys/uio.h> 124# include <sys/uio.h>
30# elif __hpux 125#endif
31# include <sys/socket.h> 126
32# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
33# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
34# else 208# else
35# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 210# endif
37#endif 211#endif
38 212
39/* number of seconds after which idle threads exit */ 213#ifndef makedev
40#define IDLE_TIMEOUT 10 214# define makedev(maj,min) (((maj) << 8) | (min))
41
42/* used for struct dirent, AIX doesn't provide it */
43#ifndef NAME_MAX
44# define NAME_MAX 4096
45#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
46 222
47/* buffer size for various temporary buffers */ 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
48#define AIO_BUFSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
49 227
50#define dBUF \ 228#if PAGESIZE <= 0
51 char *aio_buf; \ 229# define PAGESIZE sysconf (_SC_PAGESIZE)
52 LOCK (wrklock); \ 230#endif
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 231
54 UNLOCK (wrklock); \ 232#if HAVE_SYSCALL
55 if (!aio_buf) \ 233#include <sys/syscall.h>
234#else
235# define syscall(nr,...) (errno = ENOSYS, -1)
236#endif
237
238/*****************************************************************************/
239
240#if !_POSIX_MAPPED_FILES
241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
242# define munmap(addr,length) EIO_ENOSYS ()
243#endif
244
245#if !_POSIX_MEMORY_PROTECTION
246# define mprotect(addr,len,prot) EIO_ENOSYS ()
247#endif
248
249#if !MREMAP_MAYMOVE
250# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
251#endif
252
253#define FOREIGN_MAGIC PERL_MAGIC_ext
254
255static int ecb_cold
256mmap_free (pTHX_ SV *sv, MAGIC *mg)
257{
258 int old_errno = errno;
259 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
260 errno = old_errno;
261
262 mg->mg_obj = 0; /* just in case */
263
264 SvREADONLY_off (sv);
265
266 if (SvPVX (sv) != mg->mg_ptr)
267 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
268
269 SvCUR_set (sv, 0);
270 SvPVX (sv) = 0;
271 SvOK_off (sv);
272
56 return -1; 273 return 0;
274}
57 275
58typedef SV SV8; /* byte-sv, used for argument-checking */ 276static MGVTBL mmap_vtbl = {
59 277 0, 0, 0, 0, mmap_free
60enum {
61 REQ_QUIT,
62 REQ_OPEN, REQ_CLOSE,
63 REQ_READ, REQ_WRITE, REQ_READAHEAD,
64 REQ_SENDFILE,
65 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
66 REQ_FSYNC, REQ_FDATASYNC,
67 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
68 REQ_MKNOD, REQ_READDIR,
69 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
70 REQ_GROUP, REQ_NOP,
71 REQ_BUSY,
72}; 278};
73 279
74#define AIO_REQ_KLASS "IO::AIO::REQ" 280static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 281sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 282{
79 struct aio_cb *volatile next; 283 free (mg->mg_ptr);
284 mg->mg_obj = 0; /* just in case */
80 285
81 SV *callback, *fh; 286 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 287
88 STRLEN stroffset; 288 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 289 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 290
94 unsigned char flags; 291 SvCUR_set (sv, 0);
95 unsigned char pri; 292 SvPVX (sv) = 0;
293 SvOK_off (sv);
96 294
97 SV *self; /* the perl counterpart of this request, if any */ 295 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 296}
99} aio_cb;
100 297
101enum { 298static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 299 0, 0, 0, 0, sysfree_free
103 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
104 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
105}; 300};
106 301
107typedef aio_cb *aio_req; 302/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 303
110enum { 304/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 305ecb_noinline
112 PRI_MAX = 4, 306static void
113 307sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
114 DEFAULT_PRI = 0,
115 PRI_BIAS = -PRI_MIN,
116 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
117};
118
119#define AIO_TICKS ((1000000 + 1023) >> 10)
120
121static unsigned int max_poll_time = 0;
122static unsigned int max_poll_reqs = 0;
123
124/* calculcate time difference in ~1/AIO_TICKS of a second */
125static int tvdiff (struct timeval *tv1, struct timeval *tv2)
126{ 308{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 309 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 310
131static thread_t main_tid; 311 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 312 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 313 ->mg_obj = (SV *)length;
134 314
135void block_sig () 315 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 316
139 if (block_sig_level++) 317 if (SvLEN (sv))
318 Safefree (SvPVX (sv));
319
320 SvPVX (sv) = (char *)addr;
321 SvCUR_set (sv, length);
322 SvLEN_set (sv, 0);
323 SvPOK_only (sv);
324}
325
326static void
327sv_clear_foreign (SV *sv)
328{
329 /* todo: iterate over magic and only free ours, but of course */
330 /* the perl5porters will call that (correct) behaviour buggy */
331 sv_unmagic (sv, FOREIGN_MAGIC);
332}
333
334/*****************************************************************************/
335
336/* defines all sorts of constants to 0 unless they are already defined */
337/* also provides const_iv_ and const_niv_ macros for them */
338#include "def0.h"
339
340/*****************************************************************************/
341
342static void
343fiemap (eio_req *req)
344{
345 req->result = -1;
346
347#if HAVE_FIEMAP
348 /* assume some c99 */
349 struct fiemap *fiemap = 0;
350 size_t end_offset;
351 int count = req->int3;
352
353 req->flags |= EIO_FLAG_PTR1_FREE;
354
355 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
356 /* increase in fixed steps */
357 if (count < 0)
358 count = 8;
359
360 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
361 errno = ENOMEM;
362 if (!fiemap)
140 return; 363 return;
141 364
142 if (!main_sig) 365 req->ptr1 = fiemap;
366
367 fiemap->fm_start = req->offs;
368 fiemap->fm_length = req->size;
369 fiemap->fm_flags = req->int2;
370 fiemap->fm_extent_count = count;
371
372 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
143 return; 373 return;
144 374
145 sigemptyset (&ss); 375 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 376 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 377 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 378 goto done;
149 379
150void unblock_sig () 380 /* else we have to loop -
151{ 381 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 382 * number of extents needed, but linux often feels like not returning all
383 * extents, without telling us it left any out. this complicates
384 * this quite a bit.
385 */
153 386
154 if (--block_sig_level) 387 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 388
157 if (!main_sig) 389 for (;;)
158 return;
159
160 sigemptyset (&ss);
161 sigaddset (&ss, main_sig);
162 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169/* worker threads management */
170static mutex_t wrklock = MUTEX_INIT;
171
172typedef struct worker {
173 /* locked by wrklock */
174 struct worker *prev, *next;
175
176 thread_t tid;
177
178 /* locked by reslock, reqlock or wrklock */
179 aio_req req; /* currently processed request */
180 void *dbuf;
181 DIR *dirp;
182} worker;
183
184static worker wrk_first = { &wrk_first, &wrk_first, 0 };
185
186static void worker_clear (worker *wrk)
187{
188 if (wrk->dirp)
189 { 390 {
190 closedir (wrk->dirp); 391 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
191 wrk->dirp = 0; 392 char scratch[3072];
192 } 393 struct fiemap *incmap = (struct fiemap *)scratch;
193 394
194 if (wrk->dbuf) 395 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 396 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 397 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 398 incmap->fm_flags = fiemap->fm_flags;
198 } 399 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 400
201static void worker_free (worker *wrk) 401 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
202{
203 wrk->next->prev = wrk->prev;
204 wrk->prev->next = wrk->next;
205
206 free (wrk);
207}
208
209static volatile unsigned int nreqs, nready, npending;
210static volatile unsigned int max_idle = 4;
211static volatile unsigned int max_outstanding = 0xffffffff;
212static int respipe [2];
213
214static mutex_t reslock = MUTEX_INIT;
215static mutex_t reqlock = MUTEX_INIT;
216static cond_t reqwait = COND_INIT;
217
218#if WORDACCESS_UNSAFE
219
220static unsigned int get_nready ()
221{
222 unsigned int retval;
223
224 LOCK (reqlock);
225 retval = nready;
226 UNLOCK (reqlock);
227
228 return retval;
229}
230
231static unsigned int get_npending ()
232{
233 unsigned int retval;
234
235 LOCK (reslock);
236 retval = npending;
237 UNLOCK (reslock);
238
239 return retval;
240}
241
242static unsigned int get_nthreads ()
243{
244 unsigned int retval;
245
246 LOCK (wrklock);
247 retval = started;
248 UNLOCK (wrklock);
249
250 return retval;
251}
252
253#else
254
255# define get_nready() nready
256# define get_npending() npending
257# define get_nthreads() started
258
259#endif
260
261/*
262 * a somewhat faster data structure might be nice, but
263 * with 8 priorities this actually needs <20 insns
264 * per shift, the most expensive operation.
265 */
266typedef struct {
267 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
268 int size;
269} reqq;
270
271static reqq req_queue;
272static reqq res_queue;
273
274int reqq_push (reqq *q, aio_req req)
275{
276 int pri = req->pri;
277 req->next = 0;
278
279 if (q->qe[pri])
280 {
281 q->qe[pri]->next = req;
282 q->qe[pri] = req;
283 }
284 else
285 q->qe[pri] = q->qs[pri] = req;
286
287 return q->size++;
288}
289
290aio_req reqq_shift (reqq *q)
291{
292 int pri;
293
294 if (!q->size)
295 return 0; 402 return;
296 403
297 --q->size; 404 if (!incmap->fm_mapped_extents)
405 goto done;
298 406
299 for (pri = NUM_PRI; pri--; ) 407 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 408 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 409 errno = ENOMEM;
302
303 if (req) 410 if (!fiemap)
411 return;
412
413 req->ptr1 = fiemap;
414
415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 416 {
305 if (!(q->qs[pri] = req->next)) 417 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 418
308 return req; 419 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
420
421 if (e->fe_logical >= end_offset)
422 goto done;
423
424 if (e->fe_flags & FIEMAP_EXTENT_LAST)
425 goto done;
426
309 } 427 }
310 } 428 }
311 429
312 abort (); 430done:
313} 431 req->result = 0;
314 432
315static int poll_cb (); 433#else
316static int req_invoke (aio_req req); 434 errno = ENOSYS;
435#endif
436}
437
438/*****************************************************************************/
439
440static int close_fd; /* dummy fd to close fds via dup2 */
441
442#if HAVE_STATX
443static struct statx stx;
444#define statx_offsetof(member) offsetof (struct statx, member)
445#define eio__statx statx
446#else
447#define statx_offsetof(member) 0
448#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
449#endif
450
451enum {
452 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
453};
454
455typedef eio_req *aio_req;
456typedef eio_req *aio_req_ornot;
457typedef eio_wd aio_wd;
458
459static SV *on_next_submit;
460static int next_pri = EIO_PRI_DEFAULT;
461static int max_outstanding;
462
463static s_epipe respipe;
464
317static void req_free (aio_req req); 465static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 466static void req_cancel (aio_req req);
319 467
468static void
469want_poll (void)
470{
471 /* write a dummy byte to the pipe so fh becomes ready */
472 s_epipe_signal (&respipe);
473}
474
475static void
476done_poll (void)
477{
478 /* read any signals sent by the worker threads */
479 s_epipe_drain (&respipe);
480}
481
320/* must be called at most once */ 482/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 483ecb_noinline
484static SV *
485req_sv (aio_req req, HV *stash)
322{ 486{
323 if (!req->self) 487 if (!req->self)
324 { 488 {
325 req->self = (SV *)newHV (); 489 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 490 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 491 }
328 492
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 493 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 494}
331 495
332static aio_req SvAIO_REQ (SV *sv) 496static SV *
497newSVaio_wd (aio_wd wd)
498{
499 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
500}
501
502ecb_noinline
503static aio_req
504SvAIO_REQ (SV *sv)
333{ 505{
334 MAGIC *mg; 506 MAGIC *mg;
335 507
336 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 508 if (!SvROK (sv)
509 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
510 || (SvSTASH (SvRV (sv)) != aio_grp_stash
511 && SvSTASH (SvRV (sv)) != aio_req_stash
512 && !sv_derived_from (sv, "IO::AIO::REQ")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 513 croak ("object of class IO::AIO::REQ expected");
338 514
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 515 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 516
341 return mg ? (aio_req)mg->mg_ptr : 0; 517 return mg ? (aio_req)mg->mg_ptr : 0;
342} 518}
343 519
520static aio_wd
521SvAIO_WD (SV *sv)
522{
523 if (!SvROK (sv)
524 || SvTYPE (SvRV (sv)) != SVt_PVMG
525 || SvSTASH (SvRV (sv)) != aio_wd_stash)
526 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
527
528 return (aio_wd)(long)SvIVX (SvRV (sv));
529}
530
531static SV *
532newmortalFH (int fd, int flags)
533{
534 if (fd < 0)
535 return &PL_sv_undef;
536
537 GV *gv = (GV *)sv_newmortal ();
538 char sym[64];
539 int symlen;
540
541 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
542 gv_init (gv, aio_stash, sym, symlen, 0);
543
544 symlen = snprintf (
545 sym,
546 sizeof (sym),
547 "%s&=%d",
548 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
549 fd
550 );
551
552 return do_open (gv, sym, symlen, 0, 0, 0, 0)
553 ? (SV *)gv : &PL_sv_undef;
554}
555
556static void
344static void aio_grp_feed (aio_req grp) 557aio_grp_feed (aio_req grp)
345{ 558{
346 block_sig (); 559 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 560 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 561 dSP;
355 562
356 ENTER; 563 ENTER;
357 SAVETMPS; 564 SAVETMPS;
358 PUSHMARK (SP); 565 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 566 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 567 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 568 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 569 SPAGAIN;
363 FREETMPS; 570 FREETMPS;
364 LEAVE; 571 LEAVE;
365 }
366
367 /* stop if no progress has been made */
368 if (old_len == grp->size)
369 {
370 SvREFCNT_dec (grp->sv2);
371 grp->sv2 = 0;
372 break;
373 }
374 } 572 }
375
376 unblock_sig ();
377} 573}
378 574
379static void aio_grp_dec (aio_req grp) 575ecb_noinline
576static void
577req_submit (eio_req *req)
380{ 578{
381 --grp->size; 579 eio_submit (req);
382 580
383 /* call feeder, if applicable */ 581 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 582 {
389 block_sig (); 583 dSP;
584 SV *cb = sv_2mortal (on_next_submit);
390 585
391 if (!req_invoke (grp)) 586 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 587
398 req_free (grp); 588 PUSHMARK (SP);
399 unblock_sig (); 589 PUTBACK;
590 call_sv (cb, G_DISCARD | G_EVAL);
400 } 591 }
401} 592}
402 593
594static int
403static int req_invoke (aio_req req) 595req_invoke (eio_req *req)
404{ 596{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 597 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 598 SvREADONLY_off (req->sv2);
409 599
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 600 if (!EIO_CANCELLED (req) && req->callback)
411 { 601 {
602 dSP;
603 static SV *sv_result_cache; /* caches the result integer SV */
604 SV *sv_result;
605
412 ENTER; 606 ENTER;
413 SAVETMPS; 607 SAVETMPS;
414 PUSHMARK (SP); 608 PUSHMARK (SP);
415 EXTEND (SP, 1); 609 EXTEND (SP, 1);
416 610
611 /* do not recreate the result IV from scratch each time */
612 if (expect_true (sv_result_cache))
613 {
614 sv_result = sv_result_cache; sv_result_cache = 0;
615 SvIV_set (sv_result, req->result);
616 SvIOK_only (sv_result);
617 }
618 else
619 {
620 sv_result = newSViv (req->result);
621 SvREADONLY_on (sv_result);
622 }
623
417 switch (req->type) 624 switch (req->type)
418 { 625 {
626 case EIO_WD_OPEN:
627 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
628 break;
629
419 case REQ_READDIR: 630 case EIO_READDIR:
420 { 631 {
421 SV *rv = &PL_sv_undef; 632 SV *rv = &PL_sv_undef;
422 633
423 if (req->result >= 0) 634 if (req->result >= 0)
424 { 635 {
425 int i; 636 int i;
426 char *buf = req->ptr2; 637 char *names = (char *)req->ptr2;
638 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 639 AV *av = newAV ();
428 640
429 av_extend (av, req->result - 1); 641 av_extend (av, req->result - 1);
430 642
431 for (i = 0; i < req->result; ++i) 643 for (i = 0; i < req->result; ++i)
432 { 644 {
433 SV *sv = newSVpv (buf, 0); 645 if (req->int1 & EIO_READDIR_DENTS)
646 {
647 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 648
649 if (req->int1 & EIO_READDIR_CUSTOM2)
650 {
651 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
652 AV *avent = newAV ();
653
654 av_extend (avent, 2);
655
656 if (!sv_type [ent->type])
657 {
658 sv_type [ent->type] = newSViv (ent->type);
659 SvREADONLY_on (sv_type [ent->type]);
660 }
661
662 av_store (avent, 0, namesv);
663 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
664 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
665
666 av_store (av, i, newRV_noinc ((SV *)avent));
667 }
668 else
435 av_store (av, i, sv); 669 av_store (av, i, namesv);
670
671 ++ent;
672 }
673 else
674 {
675 SV *name = newSVpv (names, 0);
676 av_store (av, i, name);
436 buf += SvCUR (sv) + 1; 677 names += SvCUR (name) + 1;
678 }
437 } 679 }
438 680
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 681 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 682 }
441 683
442 PUSHs (rv); 684 PUSHs (rv);
685
686 if (req->int1 & EIO_READDIR_CUSTOM1)
687 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
443 } 688 }
444 break; 689 break;
445 690
446 case REQ_OPEN: 691 case EIO_OPEN:
692 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
693 break;
694
695 case EIO_STATVFS:
696 case EIO_FSTATVFS:
447 { 697 {
448 /* convert fd to fh */ 698 SV *rv = &PL_sv_undef;
449 SV *fh; 699
700#ifndef _WIN32
701 if (req->result >= 0)
702 {
703 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
704 HV *hv = newHV ();
705 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
706 * chooses to make it a struct.
707 */
708 unsigned long fsid = 0;
709 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
450 710
451 PUSHs (sv_2mortal (newSViv (req->result))); 711 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 712
456 fh = POPs; 713 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 714 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
715 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
716 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
717 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
718 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
719 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
720 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
721 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
722 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
723 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
724 }
725#endif
726
458 XPUSHs (fh); 727 PUSHs (rv);
459 } 728 }
729
460 break; 730 break;
461 731
462 case REQ_GROUP: 732 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 733 req->int1 = 2; /* mark group as finished */
464 734
465 if (req->sv1) 735 if (req->sv1)
466 { 736 {
467 int i; 737 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 741 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 742 PUSHs (*av_fetch (av, i, 0));
473 } 743 }
474 break; 744 break;
475 745
476 case REQ_NOP: 746 case EIO_NOP:
477 case REQ_BUSY: 747 case EIO_BUSY:
478 break; 748 break;
479 749
480 case REQ_READLINK: 750 case EIO_READLINK:
751 case EIO_REALPATH:
481 if (req->result > 0) 752 if (req->result > 0)
753 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
754 break;
755
756 case EIO_STAT:
757 case EIO_LSTAT:
758 case EIO_FSTAT:
759 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
760
761 if (!(PL_laststatval = req->result))
762 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
763 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
764
765 PUSHs (sv_result);
766 break;
767
768 case EIO_SEEK:
769 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
770 break;
771
772 case EIO_READ:
773 {
774 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 SvSETMAGIC (req->sv2);
778 PUSHs (sv_result);
779 }
780 break;
781
782 case EIO_SLURP:
783 {
784 if (req->result >= 0)
785 {
786 /* if length was originally not known, we steal the malloc'ed memory */
787 if (req->flags & EIO_FLAG_PTR2_FREE)
788 {
789 req->flags &= ~EIO_FLAG_PTR2_FREE;
790 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
791 }
792 else
793 {
794 SvCUR_set (req->sv2, req->result);
795 *SvEND (req->sv2) = 0;
796 SvPOK_only (req->sv2);
797 }
798
799 SvSETMAGIC (req->sv2);
800 }
801
802 PUSHs (sv_result);
803 }
804 break;
805
806 case EIO_CUSTOM:
807 if (req->feed == fiemap)
482 { 808 {
483 SvCUR_set (req->sv1, req->result); 809#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1); 810 if (!req->result)
811 {
812 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
813
814 if (fiemap->fm_extent_count)
815 {
816 AV *av = newAV ();
817 int i;
818
819 while (fiemap->fm_mapped_extents)
820 {
821 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
822 AV *ext_av = newAV ();
823
824 av_store (ext_av, 3, newSVuv (extent->fe_flags));
825 av_store (ext_av, 2, newSVval64 (extent->fe_length));
826 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
827 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
828
829 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
830 }
831
832 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
833 }
834 else
835 {
836 SvIV_set (sv_result, fiemap->fm_mapped_extents);
837 PUSHs (sv_result);
838 }
839 }
840#endif
486 } 841 }
842 else
843 PUSHs (sv_result);
487 break; 844 break;
488 845
489 case REQ_STAT: 846#if 0
490 case REQ_LSTAT: 847 case EIO_CLOSE:
491 case REQ_FSTAT: 848 PerlIOUnix_refcnt_dec (req->int1);
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
493 PL_laststatval = req->result;
494 PL_statcache = *(Stat_t *)(req->ptr2);
495 PUSHs (sv_2mortal (newSViv (req->result)));
496 break; 849 break;
850#endif
497 851
498 case REQ_READ: 852 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
499 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 853 if (req->result > 0)
500 *SvEND (req->sv1) = 0; 854 SvIV_set (sv_result, 0);
501 PUSHs (sv_2mortal (newSViv (req->result))); 855 /* FALLTHROUGH */
502 break;
503 856
504 default: 857 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 858 PUSHs (sv_result);
506 break; 859 break;
507 } 860 }
508 861
509 errno = req->errorno; 862 errno = req->errorno;
510 863
511 PUTBACK; 864 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 865 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 SPAGAIN; 866 SPAGAIN;
867
868 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
869 SvREFCNT_dec (sv_result);
870 else
871 sv_result_cache = sv_result;
514 872
515 FREETMPS; 873 FREETMPS;
516 LEAVE; 874 LEAVE;
875
876 PUTBACK;
517 } 877 }
518 878
519 if (req->grp)
520 {
521 aio_req grp = req->grp;
522
523 /* unlink request */
524 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
525 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
526
527 if (grp->grp_first == req)
528 grp->grp_first = req->grp_next;
529
530 aio_grp_dec (grp);
531 }
532
533 return !SvTRUE (ERRSV); 879 return !!SvTRUE (ERRSV);
534} 880}
535 881
536static void req_free (aio_req req) 882static void
883req_destroy (aio_req req)
537{ 884{
538 if (req->self) 885 if (req->self)
539 { 886 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 887 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 888 SvREFCNT_dec (req->self);
542 } 889 }
543 890
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 891 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 892 SvREFCNT_dec (req->sv2);
893 SvREFCNT_dec (req->sv3);
894 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 895 SvREFCNT_dec (req->callback);
548 896
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 897 free (req);
553} 898}
554 899
900static void
555static void req_cancel_subs (aio_req grp) 901req_cancel_subs (aio_req grp)
556{ 902{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 903 if (grp->type != EIO_GROUP)
560 return; 904 return;
561 905
562 SvREFCNT_dec (grp->sv2); 906 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 907 grp->sv2 = 0;
564 908
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 909 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 910}
568 911
569static void req_cancel (aio_req req) 912ecb_cold
913static void
914create_respipe (void)
570{ 915{
571 req->flags |= FLAG_CANCELLED; 916 if (s_epipe_renew (&respipe))
572 917 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 918}
575 919
576static void *aio_proc(void *arg); 920static void
577 921poll_wait (void)
578static void start_thread (void)
579{ 922{
580 worker *wrk = calloc (1, sizeof (worker));
581
582 if (!wrk)
583 croak ("unable to allocate worker thread data");
584
585 LOCK (wrklock);
586
587 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
588 {
589 wrk->prev = &wrk_first;
590 wrk->next = wrk_first.next;
591 wrk_first.next->prev = wrk;
592 wrk_first.next = wrk;
593 ++started;
594 }
595 else
596 free (wrk);
597
598 UNLOCK (wrklock);
599}
600
601static void maybe_start_thread ()
602{
603 if (get_nthreads () >= wanted)
604 return;
605
606 /* todo: maybe use idle here, but might be less exact */
607 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
608 return;
609
610 start_thread ();
611}
612
613static void req_send (aio_req req)
614{
615 block_sig ();
616
617 ++nreqs;
618
619 LOCK (reqlock);
620 ++nready;
621 reqq_push (&req_queue, req);
622 COND_SIGNAL (reqwait);
623 UNLOCK (reqlock);
624
625 unblock_sig ();
626
627 maybe_start_thread ();
628}
629
630static void end_thread (void)
631{
632 aio_req req;
633
634 Newz (0, req, 1, aio_cb);
635
636 req->type = REQ_QUIT;
637 req->pri = PRI_MAX + PRI_BIAS;
638
639 LOCK (reqlock);
640 reqq_push (&req_queue, req);
641 COND_SIGNAL (reqwait);
642 UNLOCK (reqlock);
643
644 LOCK (wrklock);
645 --started;
646 UNLOCK (wrklock);
647}
648
649static void set_max_idle (int nthreads)
650{
651 if (WORDACCESS_UNSAFE) LOCK (reqlock);
652 max_idle = nthreads <= 0 ? 1 : nthreads;
653 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
654}
655
656static void min_parallel (int nthreads)
657{
658 if (wanted < nthreads)
659 wanted = nthreads;
660}
661
662static void max_parallel (int nthreads)
663{
664 if (wanted > nthreads)
665 wanted = nthreads;
666
667 while (started > wanted)
668 end_thread ();
669}
670
671static void poll_wait ()
672{
673 fd_set rfd;
674
675 while (nreqs) 923 while (eio_nreqs ())
676 { 924 {
677 int size; 925 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 926
927 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 928 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 929 X_UNLOCK (EIO_POOL->reslock);
681 930
682 if (size) 931 if (size)
683 return; 932 return;
684 933
685 maybe_start_thread (); 934 etp_maybe_start_thread (EIO_POOL);
686 935
687 FD_ZERO(&rfd); 936 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 937 }
692} 938}
693 939
694static int poll_cb () 940static int
941poll_cb (void)
695{ 942{
696 dSP;
697 int count = 0;
698 int maxreqs = max_poll_reqs;
699 int do_croak = 0;
700 struct timeval tv_start, tv_now;
701 aio_req req;
702
703 if (max_poll_time)
704 gettimeofday (&tv_start, 0);
705
706 block_sig ();
707
708 for (;;) 943 for (;;)
709 { 944 {
710 for (;;) 945 int res = eio_poll ();
946
947 if (res > 0)
948 croak (0);
949
950 if (!max_outstanding || max_outstanding > eio_nreqs ())
951 return res;
952
953 poll_wait ();
954 }
955}
956
957ecb_cold
958static void
959reinit (void)
960{
961 create_respipe ();
962
963 if (eio_init (want_poll, done_poll) < 0)
964 croak ("IO::AIO: unable to initialise eio library");
965}
966
967/*****************************************************************************/
968
969static SV *
970get_cb (SV *cb_sv)
971{
972 SvGETMAGIC (cb_sv);
973 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
974}
975
976ecb_noinline
977static aio_req ecb_noinline
978dreq (SV *callback)
979{
980 SV *cb_cv;
981 aio_req req;
982 int req_pri = next_pri;
983 next_pri = EIO_PRI_DEFAULT;
984
985 cb_cv = get_cb (callback);
986
987 req = calloc (sizeof (*req), 1);
988 if (!req)
989 croak ("out of memory during eio_req allocation");
990
991 req->callback = SvREFCNT_inc (cb_cv);
992 req->pri = req_pri;
993
994 return req;
995}
996
997#define dREQ \
998 aio_req req = dreq (callback); \
999
1000#define REQ_SEND \
1001 PUTBACK; \
1002 req_submit (req); \
1003 SPAGAIN; \
1004 \
1005 if (GIMME_V != G_VOID) \
1006 XPUSHs (req_sv (req, aio_req_stash));
1007
1008/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1009ecb_inline
1010void
1011req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1012{
1013 if (expect_false (SvROK (path)))
1014 {
1015 SV *rv = SvRV (path);
1016 SV *wdob;
1017
1018 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
711 { 1019 {
712 maybe_start_thread (); 1020 path = AvARRAY (rv)[1];
1021 wdob = AvARRAY (rv)[0];
713 1022
714 LOCK (reslock); 1023 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 1024 {
719 --npending; 1025 *wd = SvAIO_WD (wdob);
720 1026 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
721 if (!res_queue.size)
722 {
723 /* read any signals sent by the worker threads */
724 char buf [4];
725 while (read (respipe [0], buf, 4) == 4)
726 ;
727 }
728 }
729
730 UNLOCK (reslock);
731
732 if (!req)
733 break;
734
735 --nreqs;
736
737 if (req->type == REQ_GROUP && req->size)
738 {
739 req->int1 = 1; /* mark request as delayed */
740 continue;
741 } 1027 }
742 else 1028 else
743 { 1029 *wd = EIO_INVALID_WD;
744 if (!req_invoke (req))
745 {
746 req_free (req);
747 unblock_sig ();
748 croak (0);
749 }
750
751 count++;
752 }
753
754 req_free (req);
755
756 if (maxreqs && !--maxreqs)
757 break;
758
759 if (max_poll_time)
760 {
761 gettimeofday (&tv_now, 0);
762
763 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
764 break;
765 }
766 } 1030 }
1031 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1032 {
1033 *wd = (aio_wd)(long)SvIVX (rv);
1034 *wdsv = SvREFCNT_inc_NN (rv);
1035 *ptr = ".";
1036 return; /* path set to "." */
1037 }
1038 else
1039 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1040 }
767 1041
768 if (nreqs <= max_outstanding) 1042 *pathsv = newSVsv (path);
1043 *ptr = SvPVbyte_nolen (*pathsv);
1044}
1045
1046ecb_noinline
1047static void
1048req_set_path1 (aio_req req, SV *path)
1049{
1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1051}
1052
1053ecb_noinline
1054static void
1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1056{
1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1058
1059 switch (SvTYPE (rv))
1060 {
1061 case SVt_PVIO:
1062 case SVt_PVLV:
1063 case SVt_PVGV:
1064 req->type = type_fh;
1065 req->sv1 = newSVsv (fh_or_path);
1066 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
769 break; 1067 break;
770 1068
771 poll_wait (); 1069 default:
772 1070 req->type = type_path;
773 ++maxreqs; 1071 req_set_path1 (req, fh_or_path);
1072 break;
774 } 1073 }
775
776 unblock_sig ();
777 return count;
778}
779
780static void create_pipe ()
781{
782 if (pipe (respipe))
783 croak ("unable to initialize result pipe");
784
785 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
786 croak ("cannot set result pipe to nonblocking mode");
787
788 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790} 1074}
791 1075
792/*****************************************************************************/ 1076/*****************************************************************************/
793/* work around various missing functions */
794 1077
795#if !HAVE_PREADWRITE 1078static void
796# define pread aio_pread 1079ts_set (struct timespec *ts, NV value)
797# define pwrite aio_pwrite
798
799/*
800 * make our pread/pwrite safe against themselves, but not against
801 * normal read/write by using a mutex. slows down execution a lot,
802 * but that's your problem, not mine.
803 */
804static mutex_t preadwritelock = MUTEX_INIT;
805
806static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
807{ 1080{
808 ssize_t res; 1081 ts->tv_sec = value;
809 off_t ooffset; 1082 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
810
811 LOCK (preadwritelock);
812 ooffset = lseek (fd, 0, SEEK_CUR);
813 lseek (fd, offset, SEEK_SET);
814 res = read (fd, buf, count);
815 lseek (fd, ooffset, SEEK_SET);
816 UNLOCK (preadwritelock);
817
818 return res;
819} 1083}
820 1084
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1085static NV
1086ts_get (const struct timespec *ts)
822{ 1087{
823 ssize_t res; 1088 return ts->tv_sec + ts->tv_nsec * 1e-9;
824 off_t ooffset;
825
826 LOCK (preadwritelock);
827 ooffset = lseek (fd, 0, SEEK_CUR);
828 lseek (fd, offset, SEEK_SET);
829 res = write (fd, buf, count);
830 lseek (fd, offset, SEEK_SET);
831 UNLOCK (preadwritelock);
832
833 return res;
834} 1089}
835#endif
836 1090
837#if !HAVE_FDATASYNC 1091/*****************************************************************************/
838# define fdatasync fsync
839#endif
840 1092
841#if !HAVE_READAHEAD 1093XS(boot_IO__AIO) ecb_cold;
842# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
843 1094
844static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1095MODULE = IO::AIO PACKAGE = IO::AIO
845{
846 dBUF;
847 1096
848 while (count > 0) 1097PROTOTYPES: ENABLE
849 {
850 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
851 1098
852 pread (fd, aio_buf, len, offset); 1099BOOT:
853 offset += len;
854 count -= len;
855 }
856
857 errno = 0;
858}
859
860#endif
861
862#if !HAVE_READDIR_R
863# define readdir_r aio_readdir_r
864
865static mutex_t readdirlock = MUTEX_INIT;
866
867static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
868{ 1100{
869 struct dirent *e; 1101 static const struct {
870 int errorno; 1102 const char *name;
1103 IV iv;
1104 } *civ, const_iv[] = {
1105# define const_niv(name, value) { # name, (IV) value },
1106# define const_iv(name) { # name, (IV) name },
1107# define const_eio(name) { # name, (IV) EIO_ ## name },
871 1108
872 LOCK (readdirlock); 1109 /* you have to re-run ./gendef0 after adding/removing any constants here */
1110 /* the first block can be undef if missing */
1111 const_iv (ENOSYS)
1112 const_iv (EXDEV)
1113 const_iv (EBADR)
873 1114
874 e = readdir (dirp); 1115 /* for lseek */
875 errorno = errno; 1116 const_iv (SEEK_DATA)
1117 const_iv (SEEK_HOLE)
876 1118
877 if (e) 1119 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
878 { 1120 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
879 *res = ent; 1121 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
880 strcpy (ent->d_name, e->d_name); 1122 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
881 } 1123 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
882 else 1124 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
883 *res = 0;
884 1125
885 UNLOCK (readdirlock); 1126 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1127 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1128 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1129 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1130 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
886 1131
887 errno = errorno; 1132 /* the second block will be 0 when missing */
888 return e ? 0 : -1; 1133 const_iv (O_ACCMODE)
889}
890#endif
891 1134
892/* sendfile always needs emulation */ 1135 const_iv (O_RDONLY)
893static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1136 const_iv (O_WRONLY)
894{ 1137 const_iv (O_RDWR)
895 ssize_t res; 1138 const_iv (O_CREAT)
1139 const_iv (O_TRUNC)
1140 const_iv (O_EXCL)
1141 const_iv (O_APPEND)
896 1142
897 if (!count) 1143 const_iv (O_ASYNC)
898 return 0; 1144 const_iv (O_DIRECT)
1145 const_iv (O_NOATIME)
899 1146
900#if HAVE_SENDFILE 1147 const_iv (O_CLOEXEC)
901# if __linux 1148 const_iv (O_NOCTTY)
902 res = sendfile (ofd, ifd, &offset, count); 1149 const_iv (O_NOFOLLOW)
1150 const_iv (O_NONBLOCK)
1151 const_iv (O_EXEC)
1152 const_iv (O_SEARCH)
1153 const_iv (O_DIRECTORY)
1154 const_iv (O_DSYNC)
1155 const_iv (O_RSYNC)
1156 const_iv (O_SYNC)
1157 const_iv (O_PATH)
1158 const_iv (O_TMPFILE)
1159 const_iv (O_TTY_INIT)
903 1160
904# elif __freebsd 1161 const_iv (S_IFIFO)
905 /* 1162 const_iv (S_IFCHR)
906 * Of course, the freebsd sendfile is a dire hack with no thoughts 1163 const_iv (S_IFBLK)
907 * wasted on making it similar to other I/O functions. 1164 const_iv (S_IFLNK)
908 */ 1165 const_iv (S_IFREG)
1166 const_iv (S_IFDIR)
1167 const_iv (S_IFWHT)
1168 const_iv (S_IFSOCK)
1169 const_iv (S_IFMT)
1170
1171 const_iv (ST_RDONLY)
1172 const_iv (ST_NOSUID)
1173 const_iv (ST_NODEV)
1174 const_iv (ST_NOEXEC)
1175 const_iv (ST_SYNCHRONOUS)
1176 const_iv (ST_MANDLOCK)
1177 const_iv (ST_WRITE)
1178 const_iv (ST_APPEND)
1179 const_iv (ST_IMMUTABLE)
1180 const_iv (ST_NOATIME)
1181 const_iv (ST_NODIRATIME)
1182 const_iv (ST_RELATIME)
1183
1184 const_iv (PROT_NONE)
1185 const_iv (PROT_EXEC)
1186 const_iv (PROT_READ)
1187 const_iv (PROT_WRITE)
1188
1189 const_iv (MAP_PRIVATE)
1190 const_iv (MAP_SHARED)
1191 const_iv (MAP_FIXED)
1192 const_iv (MAP_ANONYMOUS)
1193
1194 /* linuxish */
1195 const_iv (MAP_LOCKED)
1196 const_iv (MAP_NORESERVE)
1197 const_iv (MAP_POPULATE)
1198 const_iv (MAP_NONBLOCK)
1199 const_iv (MAP_GROWSDOWN)
1200 const_iv (MAP_32BIT)
1201 const_iv (MAP_HUGETLB)
1202 const_iv (MAP_STACK)
1203
1204 const_iv (MREMAP_MAYMOVE)
1205 const_iv (MREMAP_FIXED)
1206
1207 const_iv (MSG_CMSG_CLOEXEC)
1208 const_iv (SOCK_CLOEXEC)
1209
1210 const_iv (F_DUPFD_CLOEXEC)
1211
1212 const_iv (F_ADD_SEALS)
1213 const_iv (F_GET_SEALS)
1214 const_iv (F_SEAL_SEAL)
1215 const_iv (F_SEAL_SHRINK)
1216 const_iv (F_SEAL_GROW)
1217 const_iv (F_SEAL_WRITE)
1218
1219 const_iv (F_OFD_GETLK)
1220 const_iv (F_OFD_SETLK)
1221 const_iv (F_OFD_GETLKW)
1222
1223 const_iv (FIFREEZE)
1224 const_iv (FITHAW)
1225 const_iv (FITRIM)
1226 const_iv (FICLONE)
1227 const_iv (FICLONERANGE)
1228 const_iv (FIDEDUPERANGE)
1229
1230 const_iv (FS_IOC_GETFLAGS)
1231 const_iv (FS_IOC_SETFLAGS)
1232 const_iv (FS_IOC_GETVERSION)
1233 const_iv (FS_IOC_SETVERSION)
1234 const_iv (FS_IOC_FIEMAP)
1235 const_iv (FS_IOC_FSGETXATTR)
1236 const_iv (FS_IOC_FSSETXATTR)
1237 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1238 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1239 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1240
1241 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1242
1243 const_iv (FS_SECRM_FL)
1244 const_iv (FS_UNRM_FL)
1245 const_iv (FS_COMPR_FL)
1246 const_iv (FS_SYNC_FL)
1247 const_iv (FS_IMMUTABLE_FL)
1248 const_iv (FS_APPEND_FL)
1249 const_iv (FS_NODUMP_FL)
1250 const_iv (FS_NOATIME_FL)
1251 const_iv (FS_DIRTY_FL)
1252 const_iv (FS_COMPRBLK_FL)
1253 const_iv (FS_NOCOMP_FL)
1254 const_iv (FS_ENCRYPT_FL)
1255 const_iv (FS_BTREE_FL)
1256 const_iv (FS_INDEX_FL)
1257 const_iv (FS_JOURNAL_DATA_FL)
1258 const_iv (FS_NOTAIL_FL)
1259 const_iv (FS_DIRSYNC_FL)
1260 const_iv (FS_TOPDIR_FL)
1261 const_iv (FS_FL_USER_MODIFIABLE)
1262
1263 const_iv (FS_XFLAG_REALTIME)
1264 const_iv (FS_XFLAG_PREALLOC)
1265 const_iv (FS_XFLAG_IMMUTABLE)
1266 const_iv (FS_XFLAG_APPEND)
1267 const_iv (FS_XFLAG_SYNC)
1268 const_iv (FS_XFLAG_NOATIME)
1269 const_iv (FS_XFLAG_NODUMP)
1270 const_iv (FS_XFLAG_RTINHERIT)
1271 const_iv (FS_XFLAG_PROJINHERIT)
1272 const_iv (FS_XFLAG_NOSYMLINKS)
1273 const_iv (FS_XFLAG_EXTSIZE)
1274 const_iv (FS_XFLAG_EXTSZINHERIT)
1275 const_iv (FS_XFLAG_NODEFRAG)
1276 const_iv (FS_XFLAG_FILESTREAM)
1277 const_iv (FS_XFLAG_DAX)
1278 const_iv (FS_XFLAG_HASATTR)
1279
1280 const_iv (FIEMAP_FLAG_SYNC)
1281 const_iv (FIEMAP_FLAG_XATTR)
1282 const_iv (FIEMAP_FLAGS_COMPAT)
1283 const_iv (FIEMAP_EXTENT_LAST)
1284 const_iv (FIEMAP_EXTENT_UNKNOWN)
1285 const_iv (FIEMAP_EXTENT_DELALLOC)
1286 const_iv (FIEMAP_EXTENT_ENCODED)
1287 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1288 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1289 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1290 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1291 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1292 const_iv (FIEMAP_EXTENT_MERGED)
1293 const_iv (FIEMAP_EXTENT_SHARED)
1294
1295 const_iv (SPLICE_F_MOVE)
1296 const_iv (SPLICE_F_NONBLOCK)
1297 const_iv (SPLICE_F_MORE)
1298 const_iv (SPLICE_F_GIFT)
1299
1300 const_iv (EFD_CLOEXEC)
1301 const_iv (EFD_NONBLOCK)
1302 const_iv (EFD_SEMAPHORE)
1303
1304 const_iv (MFD_CLOEXEC)
1305 const_iv (MFD_ALLOW_SEALING)
1306 const_iv (MFD_HUGETLB)
1307
1308 const_iv (CLOCK_REALTIME)
1309 const_iv (CLOCK_MONOTONIC)
1310 const_iv (CLOCK_BOOTTIME)
1311 const_iv (CLOCK_REALTIME_ALARM)
1312 const_iv (CLOCK_BOOTTIME_ALARM)
1313
1314 const_iv (TFD_NONBLOCK)
1315 const_iv (TFD_CLOEXEC)
1316
1317 const_iv (TFD_TIMER_ABSTIME)
1318 const_iv (TFD_TIMER_CANCEL_ON_SET)
1319
1320 const_iv (STATX_TYPE)
1321 const_iv (STATX_MODE)
1322 const_iv (STATX_NLINK)
1323 const_iv (STATX_UID)
1324 const_iv (STATX_GID)
1325 const_iv (STATX_ATIME)
1326 const_iv (STATX_MTIME)
1327 const_iv (STATX_CTIME)
1328 const_iv (STATX_INO)
1329 const_iv (STATX_SIZE)
1330 const_iv (STATX_BLOCKS)
1331 const_iv (STATX_BASIC_STATS)
1332 const_iv (STATX_ALL)
1333 const_iv (STATX_BTIME)
1334 const_iv (STATX_ATTR_COMPRESSED)
1335 const_iv (STATX_ATTR_IMMUTABLE)
1336 const_iv (STATX_ATTR_APPEND)
1337 const_iv (STATX_ATTR_NODUMP)
1338 const_iv (STATX_ATTR_ENCRYPTED)
1339 const_iv (STATX_ATTR_AUTOMOUNT)
1340
1341 const_iv (AT_FDCWD)
1342 const_iv (AT_SYMLINK_NOFOLLOW)
1343 const_iv (AT_EACCESS)
1344 const_iv (AT_REMOVEDIR)
1345 const_iv (AT_SYMLINK_FOLLOW)
1346 const_iv (AT_NO_AUTOMOUNT)
1347 const_iv (AT_EMPTY_PATH)
1348 const_iv (AT_STATX_SYNC_TYPE)
1349 const_iv (AT_STATX_AS_STAT)
1350 const_iv (AT_STATX_FORCE_SYNC)
1351 const_iv (AT_STATX_DONT_SYNC)
1352 const_iv (AT_RECURSIVE)
1353
1354 const_iv (OPEN_TREE_CLONE)
1355
1356 const_iv (FSOPEN_CLOEXEC)
1357
1358 const_iv (FSPICK_CLOEXEC)
1359 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1360 const_iv (FSPICK_NO_AUTOMOUNT)
1361 const_iv (FSPICK_EMPTY_PATH)
1362
1363 const_iv (MOVE_MOUNT_F_SYMLINKS)
1364 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1365 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1366 const_iv (MOVE_MOUNT_T_SYMLINKS)
1367 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1368 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1369
1370 /* waitid */
1371 const_iv (P_PID)
1372 const_iv (P_PIDFD)
1373 const_iv (P_PGID)
1374 const_iv (P_ALL)
1375
1376 /* these are libeio constants, and are independent of gendef0 */
1377 const_eio (SEEK_SET)
1378 const_eio (SEEK_CUR)
1379 const_eio (SEEK_END)
1380
1381 const_eio (MCL_FUTURE)
1382 const_eio (MCL_CURRENT)
1383 const_eio (MCL_ONFAULT)
1384
1385 const_eio (MS_ASYNC)
1386 const_eio (MS_INVALIDATE)
1387 const_eio (MS_SYNC)
1388
1389 const_eio (MT_MODIFY)
1390
1391 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1392 const_eio (SYNC_FILE_RANGE_WRITE)
1393 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1394
1395 const_eio (FALLOC_FL_KEEP_SIZE)
1396 const_eio (FALLOC_FL_PUNCH_HOLE)
1397 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1398 const_eio (FALLOC_FL_ZERO_RANGE)
1399 const_eio (FALLOC_FL_INSERT_RANGE)
1400 const_eio (FALLOC_FL_UNSHARE_RANGE)
1401
1402 const_eio (RENAME_NOREPLACE)
1403 const_eio (RENAME_EXCHANGE)
1404 const_eio (RENAME_WHITEOUT)
1405
1406 const_eio (READDIR_DENTS)
1407 const_eio (READDIR_DIRS_FIRST)
1408 const_eio (READDIR_STAT_ORDER)
1409 const_eio (READDIR_FOUND_UNKNOWN)
1410
1411 const_eio (DT_UNKNOWN)
1412 const_eio (DT_FIFO)
1413 const_eio (DT_CHR)
1414 const_eio (DT_DIR)
1415 const_eio (DT_BLK)
1416 const_eio (DT_REG)
1417 const_eio (DT_LNK)
1418 const_eio (DT_SOCK)
1419 const_eio (DT_WHT)
1420 };
1421
1422 aio_stash = gv_stashpv ("IO::AIO" , 1);
1423 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1424 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1425 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1426
1427 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1428 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1429
1430 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1431
1432 /* allocate dummy pipe fd for aio_close */
909 { 1433 {
910 off_t sbytes; 1434 int pipefd [2];
911 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
912 1435
913 if (res < 0 && sbytes) 1436 if (
914 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1437#ifdef _WIN32
915 res = sbytes; 1438 _pipe (pipefd, 1, _O_BINARY) < 0
1439#else
1440 pipe (pipefd) < 0
1441 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1442#endif
1443 || close (pipefd [1]) < 0
1444 )
1445 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1446
1447 close_fd = pipefd [0];
916 } 1448 }
917 1449
918# elif __hpux 1450 reinit ();
919 res = sendfile (ofd, ifd, offset, count, 0, 0);
920
921# elif __solaris
922 {
923 struct sendfilevec vec;
924 size_t sbytes;
925
926 vec.sfv_fd = ifd;
927 vec.sfv_flag = 0;
928 vec.sfv_off = offset;
929 vec.sfv_len = count;
930
931 res = sendfilev (ofd, &vec, 1, &sbytes);
932
933 if (res < 0 && sbytes)
934 res = sbytes;
935 }
936
937# endif
938#else
939 res = -1;
940 errno = ENOSYS;
941#endif
942
943 if (res < 0
944 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
945#if __solaris
946 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
947#endif
948 )
949 )
950 {
951 /* emulate sendfile. this is a major pain in the ass */
952 dBUF;
953
954 res = 0;
955
956 while (count)
957 {
958 ssize_t cnt;
959
960 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
961
962 if (cnt <= 0)
963 {
964 if (cnt && !res) res = -1;
965 break;
966 }
967
968 cnt = write (ofd, aio_buf, cnt);
969
970 if (cnt <= 0)
971 {
972 if (cnt && !res) res = -1;
973 break;
974 }
975
976 offset += cnt;
977 res += cnt;
978 count -= cnt;
979 }
980 }
981
982 return res;
983} 1451}
984 1452
985/* read a full directory */
986static void scandir_ (aio_req req, worker *self)
987{
988 DIR *dirp;
989 union
990 {
991 struct dirent d;
992 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
993 } *u;
994 struct dirent *entp;
995 char *name, *names;
996 int memlen = 4096;
997 int memofs = 0;
998 int res = 0;
999 int errorno;
1000
1001 LOCK (wrklock);
1002 self->dirp = dirp = opendir (req->ptr1);
1003 self->dbuf = u = malloc (sizeof (*u));
1004 req->flags |= FLAG_PTR2_FREE;
1005 req->ptr2 = names = malloc (memlen);
1006 UNLOCK (wrklock);
1007
1008 if (dirp && u && names)
1009 for (;;)
1010 {
1011 errno = 0;
1012 readdir_r (dirp, &u->d, &entp);
1013
1014 if (!entp)
1015 break;
1016
1017 name = entp->d_name;
1018
1019 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1020 {
1021 int len = strlen (name) + 1;
1022
1023 res++;
1024
1025 while (memofs + len > memlen)
1026 {
1027 memlen *= 2;
1028 LOCK (wrklock);
1029 req->ptr2 = names = realloc (names, memlen);
1030 UNLOCK (wrklock);
1031
1032 if (!names)
1033 break;
1034 }
1035
1036 memcpy (names + memofs, name, len);
1037 memofs += len;
1038 }
1039 }
1040
1041 if (errno)
1042 res = -1;
1043
1044 req->result = res;
1045}
1046
1047/*****************************************************************************/
1048
1049static void *aio_proc (void *thr_arg)
1050{
1051 aio_req req;
1052 struct timespec ts;
1053 worker *self = (worker *)thr_arg;
1054
1055 /* try to distribute timeouts somewhat evenly */
1056 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1057 * (1000000000UL / 1024UL);
1058
1059 for (;;)
1060 {
1061 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1062
1063 LOCK (reqlock);
1064
1065 for (;;)
1066 {
1067 self->req = req = reqq_shift (&req_queue);
1068
1069 if (req)
1070 break;
1071
1072 ++idle;
1073
1074 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1075 == ETIMEDOUT)
1076 {
1077 if (idle > max_idle)
1078 {
1079 --idle;
1080 UNLOCK (reqlock);
1081 LOCK (wrklock);
1082 --started;
1083 UNLOCK (wrklock);
1084 goto quit;
1085 }
1086
1087 /* we are allowed to idle, so do so without any timeout */
1088 COND_WAIT (reqwait, reqlock);
1089 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1090 }
1091
1092 --idle;
1093 }
1094
1095 --nready;
1096
1097 UNLOCK (reqlock);
1098
1099 errno = 0; /* strictly unnecessary */
1100
1101 if (!(req->flags & FLAG_CANCELLED))
1102 switch (req->type)
1103 {
1104 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1105 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1106
1107 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1108 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1109
1110 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1111 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1113
1114 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1115 case REQ_CLOSE: req->result = close (req->int1); break;
1116 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1117 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1118 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 {
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 /* optionally signal the main thread asynchronously */
1163 if (main_sig)
1164 pthread_kill (main_tid, main_sig);
1165 }
1166
1167 self->req = 0;
1168 worker_clear (self);
1169
1170 UNLOCK (reslock);
1171 }
1172
1173quit:
1174 LOCK (wrklock);
1175 worker_free (self);
1176 UNLOCK (wrklock);
1177
1178 return 0;
1179}
1180
1181/*****************************************************************************/
1182
1183static void atfork_prepare (void)
1184{
1185 LOCK (wrklock);
1186 LOCK (reqlock);
1187 LOCK (reslock);
1188#if !HAVE_PREADWRITE
1189 LOCK (preadwritelock);
1190#endif
1191#if !HAVE_READDIR_R
1192 LOCK (readdirlock);
1193#endif
1194}
1195
1196static void atfork_parent (void)
1197{
1198#if !HAVE_READDIR_R
1199 UNLOCK (readdirlock);
1200#endif
1201#if !HAVE_PREADWRITE
1202 UNLOCK (preadwritelock);
1203#endif
1204 UNLOCK (reslock);
1205 UNLOCK (reqlock);
1206 UNLOCK (wrklock);
1207}
1208
1209static void atfork_child (void)
1210{
1211 aio_req prv;
1212
1213 while (prv = reqq_shift (&req_queue))
1214 req_free (prv);
1215
1216 while (prv = reqq_shift (&res_queue))
1217 req_free (prv);
1218
1219 while (wrk_first.next != &wrk_first)
1220 {
1221 worker *wrk = wrk_first.next;
1222
1223 if (wrk->req)
1224 req_free (wrk->req);
1225
1226 worker_clear (wrk);
1227 worker_free (wrk);
1228 }
1229
1230 started = 0;
1231 idle = 0;
1232 nreqs = 0;
1233 nready = 0;
1234 npending = 0;
1235
1236 close (respipe [0]);
1237 close (respipe [1]);
1238 create_pipe ();
1239
1240 atfork_parent ();
1241}
1242
1243#define dREQ \
1244 aio_req req; \
1245 int req_pri = next_pri; \
1246 next_pri = DEFAULT_PRI + PRI_BIAS; \
1247 \
1248 if (SvOK (callback) && !SvROK (callback)) \
1249 croak ("callback must be undef or of reference type"); \
1250 \
1251 Newz (0, req, 1, aio_cb); \
1252 if (!req) \
1253 croak ("out of memory during aio_req allocation"); \
1254 \
1255 req->callback = newSVsv (callback); \
1256 req->pri = req_pri
1257
1258#define REQ_SEND \
1259 req_send (req); \
1260 \
1261 if (GIMME_V != G_VOID) \
1262 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1263
1264MODULE = IO::AIO PACKAGE = IO::AIO
1265
1266PROTOTYPES: ENABLE
1267
1268BOOT:
1269{
1270 HV *stash = gv_stashpv ("IO::AIO", 1);
1271
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1274 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1275 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1276 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1277 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1279
1280 create_pipe ();
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283
1284void 1453void
1454reinit ()
1455 PROTOTYPE:
1456
1457void
1285max_poll_reqs (int nreqs) 1458max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1459 PROTOTYPE: $
1287 CODE: 1460 CODE:
1288 max_poll_reqs = nreqs; 1461 eio_set_max_poll_reqs (nreqs);
1289 1462
1290void 1463void
1291max_poll_time (double nseconds) 1464max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1465 PROTOTYPE: $
1293 CODE: 1466 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1467 eio_set_max_poll_time (nseconds);
1295 1468
1296void 1469void
1297min_parallel (int nthreads) 1470min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1471 PROTOTYPE: $
1307 CODE: 1472 CODE:
1308 set_max_idle (nthreads); 1473 eio_set_min_parallel (nthreads);
1309 1474
1310int 1475void
1311max_outstanding (int maxreqs) 1476max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1477 PROTOTYPE: $
1313 CODE: 1478 CODE:
1314 RETVAL = max_outstanding; 1479 eio_set_max_parallel (nthreads);
1480
1481void
1482max_idle (unsigned int nthreads)
1483 PROTOTYPE: $
1484 CODE:
1485 eio_set_max_idle (nthreads);
1486
1487void
1488idle_timeout (unsigned int seconds)
1489 PROTOTYPE: $
1490 CODE:
1491 eio_set_idle_timeout (seconds);
1492
1493void
1494max_outstanding (unsigned int maxreqs)
1495 PROTOTYPE: $
1496 CODE:
1315 max_outstanding = maxreqs; 1497 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1498
1319void 1499void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1500aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1501 PPCODE:
1327{ 1502{
1328 dREQ; 1503 dREQ;
1329 1504
1505 req->type = EIO_WD_OPEN;
1506 req_set_path1 (req, pathname);
1507
1508 REQ_SEND;
1509}
1510
1511void
1512aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1330 req->type = REQ_OPEN; 1517 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1518 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1519 req->int1 = flags;
1334 req->mode = mode; 1520 req->int2 = mode;
1335 1521
1336 REQ_SEND; 1522 REQ_SEND;
1337} 1523}
1338 1524
1339void 1525void
1340aio_close (fh,callback=&PL_sv_undef) 1526aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1527 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1528 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1529 aio_fdatasync = EIO_FDATASYNC
1530 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1531 PPCODE:
1349{ 1532{
1533 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1534 dREQ;
1351 1535
1352 req->type = ix; 1536 req->type = ix;
1353 req->fh = newSVsv (fh); 1537 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1538 req->int1 = fd;
1355 1539
1356 REQ_SEND (req); 1540 REQ_SEND;
1357} 1541}
1358 1542
1359void 1543void
1544aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1545 PPCODE:
1546{
1547 int fd = s_fileno_croak (fh, 0);
1548 dREQ;
1549
1550 req->type = EIO_SYNC_FILE_RANGE;
1551 req->sv1 = newSVsv (fh);
1552 req->int1 = fd;
1553 req->offs = offset;
1554 req->size = nbytes;
1555 req->int2 = flags;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1562 PPCODE:
1563{
1564 int fd = s_fileno_croak (fh, 0);
1565 dREQ;
1566
1567 req->type = EIO_FALLOCATE;
1568 req->sv1 = newSVsv (fh);
1569 req->int1 = fd;
1570 req->int2 = mode;
1571 req->offs = offset;
1572 req->size = len;
1573
1574 REQ_SEND;
1575}
1576
1577void
1578aio_close (SV *fh, SV *callback = &PL_sv_undef)
1579 PPCODE:
1580{
1581 int fd = s_fileno_croak (fh, 0);
1582 dREQ;
1583#if 0
1584 /* partially duplicate logic in s_fileno */
1585 SvGETMAGIC (fh);
1586
1587 if (SvROK (fh))
1588 {
1589 fh = SvRV (fh);
1590 SvGETMAGIC (fh);
1591 }
1592
1593 if (SvTYPE (fh) == SVt_PVGV)
1594 {
1595 /* perl filehandle */
1596 PerlIOUnix_refcnt_inc (fd);
1597 do_close ((GV *)fh, 1);
1598
1599 req->type = EIO_CLOSE;
1600 req->int1 = fd;
1601 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1602 }
1603 else
1604#endif
1605 {
1606 /* fd number */
1607 req->type = EIO_DUP2;
1608 req->int1 = close_fd;
1609 req->sv2 = newSVsv (fh);
1610 req->int2 = fd;
1611 }
1612
1613 REQ_SEND;
1614}
1615
1616void
1617aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1618 PPCODE:
1619{
1620 int fd = s_fileno_croak (fh, 0);
1621 dREQ;
1622
1623 req->type = EIO_SEEK;
1624 req->sv1 = newSVsv (fh);
1625 req->int1 = fd;
1626 req->offs = SvVAL64 (offset);
1627 req->int2 = whence;
1628
1629 REQ_SEND;
1630}
1631
1632void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1633aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1361 SV * fh
1362 UV offset
1363 UV length
1364 SV8 * data
1365 UV dataoffset
1366 SV * callback
1367 ALIAS: 1634 ALIAS:
1368 aio_read = REQ_READ 1635 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1636 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1637 PPCODE:
1372{ 1638{
1373 STRLEN svlen; 1639 STRLEN svlen;
1640 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1641 char *svptr = SvPVbyte (data, svlen);
1375 1642 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1643
1379 if (dataoffset < 0) 1644 if (dataoffset < 0)
1380 dataoffset += svlen; 1645 dataoffset += svlen;
1381 1646
1382 if (dataoffset < 0 || dataoffset > svlen) 1647 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1648 croak ("dataoffset outside of data scalar");
1384 1649
1385 if (ix == REQ_WRITE) 1650 if (ix == EIO_WRITE)
1386 { 1651 {
1387 /* write: check length and adjust. */ 1652 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1653 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1654 len = svlen - dataoffset;
1390 } 1655 }
1391 else 1656 else
1392 { 1657 {
1393 /* read: grow scalar as necessary */ 1658 /* read: check type and grow scalar as necessary */
1659 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 1660 svptr = sv_grow (data, len + dataoffset + 1);
1661 else if (SvCUR (data) < len + dataoffset)
1662 croak ("length + dataoffset outside of scalar, and cannot grow");
1395 } 1663 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1664
1400 { 1665 {
1401 dREQ; 1666 dREQ;
1402 1667
1403 req->type = ix; 1668 req->type = ix;
1404 req->fh = newSVsv (fh); 1669 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1670 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1671 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1672 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1673 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1674 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1675 req->stroffset = dataoffset;
1412 1676
1413 if (!SvREADONLY (data)) 1677 if (!SvREADONLY (data))
1414 { 1678 {
1415 SvREADONLY_on (data); 1679 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1680 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1681 }
1418 1682
1419 REQ_SEND; 1683 REQ_SEND;
1420 } 1684 }
1421} 1685}
1422 1686
1423void 1687void
1424aio_readlink (path,callback=&PL_sv_undef) 1688aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1689 ALIAS:
1426 SV * callback 1690 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1691 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1692 PPCODE:
1429{ 1693{
1430 SV *data; 1694 int fd = s_fileno_croak (fh, 0);
1695 char *svptr;
1696
1697 if (SvPOK (arg) || !SvNIOK (arg))
1698 {
1699 STRLEN svlen;
1700 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1701#ifdef IOCPARM_LEN
1702 STRLEN need = IOCPARM_LEN (request);
1703#else
1704 STRLEN need = 256;
1705#endif
1706
1707 if (svlen < need)
1708 svptr = SvGROW (arg, need);
1709 }
1710 else
1711 svptr = (char *)SvIV (arg);
1712
1713 {
1714 dREQ;
1715
1716 req->type = ix;
1717 req->sv1 = newSVsv (fh);
1718 req->int1 = fd;
1719 req->int2 = (long)request;
1720 req->sv2 = SvREFCNT_inc (arg);
1721 req->ptr2 = svptr;
1722
1723 REQ_SEND;
1724 }
1725}
1726
1727void
1728aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_readlink = EIO_READLINK
1731 aio_realpath = EIO_REALPATH
1732 PPCODE:
1733{
1431 dREQ; 1734 dREQ;
1432 1735
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1736 req->type = ix;
1437 req->fh = newSVsv (path); 1737 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1738
1442 REQ_SEND; 1739 REQ_SEND;
1443} 1740}
1444 1741
1445void 1742void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1743aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1447 SV * out_fh
1448 SV * in_fh
1449 UV in_offset
1450 UV length
1451 SV * callback
1452 PROTOTYPE: $$$$;$
1453 PPCODE: 1744 PPCODE:
1454{ 1745{
1746 int ifd = s_fileno_croak (in_fh , 0);
1747 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1748 dREQ;
1456 1749
1457 req->type = REQ_SENDFILE; 1750 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1751 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1752 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1753 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1754 req->int2 = ifd;
1462 req->offs = in_offset; 1755 req->offs = in_offset;
1463 req->size = length; 1756 req->size = length;
1464 1757
1465 REQ_SEND; 1758 REQ_SEND;
1466} 1759}
1467 1760
1468void 1761void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1762aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1763 PPCODE:
1476{ 1764{
1765 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1766 dREQ;
1478 1767
1479 req->type = REQ_READAHEAD; 1768 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1769 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1770 req->int1 = fd;
1482 req->offs = offset; 1771 req->offs = offset;
1483 req->size = length; 1772 req->size = length;
1484 1773
1485 REQ_SEND; 1774 REQ_SEND;
1486} 1775}
1487 1776
1488void 1777void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1778aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1779 ALIAS:
1493 aio_stat = REQ_STAT 1780 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1781 aio_lstat = EIO_LSTAT
1782 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1783 PPCODE:
1496{ 1784{
1497 dREQ; 1785 dREQ;
1498 1786
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1787 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1500 if (!req->ptr2)
1501 {
1502 req_free (req);
1503 croak ("out of memory during aio_stat statdata allocation");
1504 }
1505
1506 req->flags |= FLAG_PTR2_FREE;
1507
1508 if (SvPOK (fh_or_path))
1509 {
1510 req->type = ix;
1511 req->sv1 = newSVsv (fh_or_path);
1512 req->ptr1 = SvPVbyte_nolen (req->sv1);
1513 }
1514 else
1515 {
1516 req->type = REQ_FSTAT;
1517 req->fh = newSVsv (fh_or_path);
1518 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1519 }
1520 1788
1521 REQ_SEND; 1789 REQ_SEND;
1522} 1790}
1523 1791
1524void 1792void
1793st_xtime ()
1794 ALIAS:
1795 st_atime = 0x01
1796 st_mtime = 0x02
1797 st_ctime = 0x04
1798 st_btime = 0x08
1799 st_xtime = 0x0f
1800 PPCODE:
1801 EXTEND (SP, 4);
1802 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1803 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1804 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1805 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1806
1807void
1808st_xtimensec ()
1809 ALIAS:
1810 st_atimensec = 0x01
1811 st_mtimensec = 0x02
1812 st_ctimensec = 0x04
1813 st_btimensec = 0x08
1814 st_xtimensec = 0x0f
1815 st_btimesec = 0x10
1816 st_gen = 0x20
1817 PPCODE:
1818 EXTEND (SP, 4);
1819 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1820 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1821 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1822 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1823 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1824 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1825
1826UV
1827major (UV dev)
1828 ALIAS:
1829 minor = 1
1830 CODE:
1831 RETVAL = ix ? minor (dev) : major (dev);
1832 OUTPUT:
1833 RETVAL
1834
1835UV
1836makedev (UV maj, UV min)
1837 CODE:
1838 RETVAL = makedev (maj, min);
1839 OUTPUT:
1840 RETVAL
1841
1842void
1843aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1844 PPCODE:
1845{
1846 dREQ;
1847
1848 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1849 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1850 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1851
1852 REQ_SEND;
1853}
1854
1855void
1856aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1857 PPCODE:
1858{
1859 dREQ;
1860
1861 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1862 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1863
1864 REQ_SEND;
1865}
1866
1867void
1868aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1869 PPCODE:
1870{
1871 dREQ;
1872
1873 req->int2 = mode;
1874 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1875
1876 REQ_SEND;
1877}
1878
1879void
1880aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1881 PPCODE:
1882{
1883 dREQ;
1884
1885 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1886 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1887 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1888
1889 REQ_SEND;
1890}
1891
1892void
1893aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1894 PPCODE:
1895{
1896 dREQ;
1897
1898 req->type = EIO_READDIR;
1899 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1900
1901 if (flags & EIO_READDIR_DENTS)
1902 req->int1 |= EIO_READDIR_CUSTOM2;
1903
1904 req_set_path1 (req, pathname);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->type = EIO_MKDIR;
1916 req->int2 = mode;
1917 req_set_path1 (req, pathname);
1918
1919 REQ_SEND;
1920}
1921
1922void
1525aio_unlink (pathname,callback=&PL_sv_undef) 1923aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1924 ALIAS:
1529 aio_unlink = REQ_UNLINK 1925 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1926 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1927 aio_readdir = EIO_READDIR
1532 PPCODE: 1928 PPCODE:
1533{ 1929{
1534 dREQ; 1930 dREQ;
1535 1931
1536 req->type = ix; 1932 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1933 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1934
1540 REQ_SEND; 1935 REQ_SEND;
1541} 1936}
1542 1937
1543void 1938void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef)
1545 SV8 * pathname
1546 UV mode
1547 SV * callback
1548 PPCODE:
1549{
1550 dREQ;
1551
1552 req->type = REQ_MKDIR;
1553 req->sv1 = newSVsv (pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 req->mode = mode;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_link (oldpath,newpath,callback=&PL_sv_undef) 1939aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS: 1940 ALIAS:
1566 aio_link = REQ_LINK 1941 aio_link = EIO_LINK
1567 aio_symlink = REQ_SYMLINK 1942 aio_symlink = EIO_SYMLINK
1568 aio_rename = REQ_RENAME 1943 aio_rename = EIO_RENAME
1569 PPCODE: 1944 PPCODE:
1570{ 1945{
1946 eio_wd wd2 = 0;
1571 dREQ; 1947 dREQ;
1572 1948
1573 req->type = ix; 1949 req->type = ix;
1574 req->fh = newSVsv (oldpath); 1950 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 1951 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 1952 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1953
1579 REQ_SEND; 1954 REQ_SEND;
1580} 1955}
1581 1956
1582void 1957void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1958aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1584 SV8 * pathname
1585 UV mode
1586 UV dev
1587 SV * callback
1588 PPCODE: 1959 PPCODE:
1589{ 1960{
1961 eio_wd wd2 = 0;
1590 dREQ; 1962 dREQ;
1591 1963
1592 req->type = REQ_MKNOD; 1964 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 1965 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1966 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 1967 req->int2 = flags;
1596 req->offs = dev; 1968 req->int3 = (long)wd2;
1597 1969
1598 REQ_SEND; 1970 REQ_SEND;
1599} 1971}
1600 1972
1601void 1973void
1602aio_busy (delay,callback=&PL_sv_undef) 1974aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 1975 PPCODE:
1606{ 1976{
1607 dREQ; 1977 dREQ;
1608 1978
1609 req->type = REQ_BUSY; 1979 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 1980 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1981 req->offs = dev;
1612 1982 req_set_path1 (req, pathname);
1983
1613 REQ_SEND; 1984 REQ_SEND;
1614} 1985}
1615 1986
1616void 1987void
1617aio_group (callback=&PL_sv_undef) 1988aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1618 SV * callback 1989 ALIAS:
1619 PROTOTYPE: ;$ 1990 aio_mtouch = EIO_MTOUCH
1991 aio_msync = EIO_MSYNC
1620 PPCODE: 1992 PPCODE:
1621{ 1993{
1994 STRLEN svlen;
1995 char *svptr = SvPVbyte (data, svlen);
1996 UV len = SvUV (length);
1997
1998 if (flags < 0)
1999 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2000
2001 if (offset < 0)
2002 offset += svlen;
2003
2004 if (offset < 0 || offset > svlen)
2005 croak ("offset outside of scalar");
2006
2007 if (!SvOK (length) || len + offset > svlen)
2008 len = svlen - offset;
2009
2010 {
2011 dREQ;
2012
2013 req->type = ix;
2014 req->sv2 = SvREFCNT_inc (data);
2015 req->ptr2 = (char *)svptr + offset;
2016 req->size = len;
2017 req->int1 = flags;
2018
2019 REQ_SEND;
2020 }
2021}
2022
2023void
2024aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2025 PPCODE:
2026{
2027 STRLEN svlen;
2028 char *svptr = SvPVbyte (data, svlen);
2029 UV len = SvUV (length);
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = EIO_MLOCK;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047
2048 REQ_SEND;
2049 }
2050}
2051
2052void
2053aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2054 PPCODE:
2055{
2056 dREQ;
2057
2058 req->type = EIO_MLOCKALL;
2059 req->int1 = flags;
2060
2061 REQ_SEND;
2062}
2063
2064void
2065aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2066 PPCODE:
2067{
2068 int fd = s_fileno_croak (fh, 0);
1622 dREQ; 2069 dREQ;
1623 2070
1624 req->type = REQ_GROUP; 2071 req->type = EIO_CUSTOM;
2072 req->sv1 = newSVsv (fh);
2073 req->int1 = fd;
1625 2074
1626 req_send (req); 2075 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2076#if HAVE_FIEMAP
1628} 2077 /* keep our fingers crossed that the next two types are 64 bit */
2078 req->offs = start;
2079 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2080 req->int2 = flags;
2081 req->int3 = SvOK (count) ? SvIV (count) : -1;
2082#endif
1629 2083
2084 REQ_SEND;
2085}
2086
1630void 2087void
1631aio_nop (callback=&PL_sv_undef) 2088aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 SV * callback 2089 PPCODE:
2090{
2091 char *svptr = 0;
2092
2093 sv_clear_foreign (data);
2094
2095 if (length) /* known length, directly read into scalar */
2096 {
2097 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2098 svptr = sv_grow (data, length + 1);
2099 else if (SvCUR (data) < length)
2100 croak ("length outside of scalar, and cannot grow");
2101 else
2102 svptr = SvPVbyte_nolen (data);
2103 }
2104
2105 {
2106 dREQ;
2107
2108 req->type = EIO_SLURP;
2109 req_set_path1 (req, pathname);
2110 req->offs = offset;
2111 req->size = length;
2112 req->sv2 = SvREFCNT_inc (data);
2113 req->ptr2 = svptr;
2114
2115 if (!SvREADONLY (data))
2116 {
2117 SvREADONLY_on (data);
2118 req->flags |= FLAG_SV2_RO_OFF;
2119 }
2120
2121 REQ_SEND;
2122 }
2123}
2124
2125void
2126aio_busy (double delay, SV *callback = &PL_sv_undef)
1633 PPCODE: 2127 PPCODE:
1634{ 2128{
1635 dREQ; 2129 dREQ;
1636 2130
1637 req->type = REQ_NOP; 2131 req->type = EIO_BUSY;
2132 req->nv1 = delay < 0. ? 0. : delay;
1638 2133
1639 REQ_SEND; 2134 REQ_SEND;
1640} 2135}
1641 2136
2137void
2138aio_group (SV *callback = &PL_sv_undef)
2139 PPCODE:
2140{
2141 dREQ;
2142
2143 req->type = EIO_GROUP;
2144
2145 PUTBACK;
2146 req_submit (req);
2147 SPAGAIN;
2148
2149 XPUSHs (req_sv (req, aio_grp_stash));
2150}
2151
2152void
2153aio_nop (SV *callback = &PL_sv_undef)
2154 ALIAS:
2155 aio_nop = EIO_NOP
2156 aio_sync = EIO_SYNC
2157 PPCODE:
2158{
2159 dREQ;
2160
2161 req->type = ix;
2162
2163 REQ_SEND;
2164}
2165
1642int 2166int
1643aioreq_pri (int pri = 0) 2167aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 2168 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 2169 RETVAL = next_pri;
1647 if (items > 0) 2170 if (items > 0)
1648 { 2171 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 2172 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 2173 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 2174 next_pri = pri;
1652 } 2175 }
1653 OUTPUT: 2176 OUTPUT:
1654 RETVAL 2177 RETVAL
1655 2178
1656void 2179void
1657aioreq_nice (int nice = 0) 2180aioreq_nice (int nice = 0)
1658 CODE: 2181 CODE:
1659 nice = next_pri - nice; 2182 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 2183 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 2184 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 2185 next_pri = nice;
1663 2186
1664void 2187void
1665flush () 2188flush ()
1666 PROTOTYPE:
1667 CODE: 2189 CODE:
1668 while (nreqs) 2190 while (eio_nreqs ())
1669 { 2191 {
1670 poll_wait (); 2192 poll_wait ();
1671 poll_cb (); 2193 poll_cb ();
1672 } 2194 }
1673 2195
1674int 2196int
1675poll() 2197poll ()
1676 PROTOTYPE:
1677 CODE: 2198 CODE:
1678 poll_wait (); 2199 poll_wait ();
1679 RETVAL = poll_cb (); 2200 RETVAL = poll_cb ();
1680 OUTPUT: 2201 OUTPUT:
1681 RETVAL 2202 RETVAL
1682 2203
1683int 2204int
1684poll_fileno() 2205poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 2206 CODE:
1687 RETVAL = respipe [0]; 2207 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 2208 OUTPUT:
1689 RETVAL 2209 RETVAL
1690 2210
1691int 2211int
1692poll_cb(...) 2212poll_cb (...)
1693 PROTOTYPE: 2213 PROTOTYPE:
1694 CODE: 2214 CODE:
1695 RETVAL = poll_cb (); 2215 RETVAL = poll_cb ();
1696 OUTPUT: 2216 OUTPUT:
1697 RETVAL 2217 RETVAL
1698 2218
1699void 2219void
1700poll_wait() 2220poll_wait ()
2221 CODE:
2222 poll_wait ();
2223
2224int
2225nreqs ()
2226 CODE:
2227 RETVAL = eio_nreqs ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232nready ()
2233 CODE:
2234 RETVAL = eio_nready ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239npending ()
2240 CODE:
2241 RETVAL = eio_npending ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246nthreads ()
2247 CODE:
2248 RETVAL = eio_nthreads ();
2249 OUTPUT:
2250 RETVAL
2251
2252int
2253fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2254 CODE:
2255 RETVAL = posix_fadvise (fh, offset, length, advice);
2256 OUTPUT:
2257 RETVAL
2258
2259IV
2260sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2261 CODE:
2262 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2263 OUTPUT:
2264 RETVAL
2265
2266void
2267mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2268 PPCODE:
2269 sv_clear_foreign (scalar);
2270{
2271 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2272 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2273 if (addr == (void *)-1)
2274 XSRETURN_NO;
2275
2276 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2277
2278 if (!(prot & PROT_WRITE))
2279 SvREADONLY_on (scalar);
2280
2281 XSRETURN_YES;
2282}
2283
2284void
2285munmap (SV *scalar)
2286 CODE:
2287 sv_clear_foreign (scalar);
2288
2289SV *
2290mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2291 CODE:
2292{
2293 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2294 void *new;
2295
2296 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2297 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2298
2299 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2300
2301 RETVAL = &PL_sv_no;
2302
2303 if (new != (void *)-1)
2304 {
2305 RETVAL = new == (void *)mg->mg_ptr
2306 ? newSVpvn ("0 but true", 10)
2307 : &PL_sv_yes;
2308
2309 mg->mg_ptr = (char *)new;
2310 mg->mg_obj = (SV *)new_length;
2311
2312 SvPVX (scalar) = mg->mg_ptr;
2313 SvCUR_set (scalar, new_length);
2314 }
2315}
2316 OUTPUT:
2317 RETVAL
2318
2319int
2320madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2321 ALIAS:
2322 mprotect = 1
2323 CODE:
2324{
2325 STRLEN svlen;
2326 void *addr = SvPVbyte (scalar, svlen);
2327 STRLEN len = SvUV (length);
2328
2329 if (offset < 0)
2330 offset += svlen;
2331
2332 if (offset < 0 || offset > svlen)
2333 croak ("offset outside of scalar");
2334
2335 if (!SvOK (length) || len + offset > svlen)
2336 len = svlen - offset;
2337
2338 addr = (void *)(((intptr_t)addr) + offset);
2339 eio_page_align (&addr, &len);
2340
2341 switch (ix)
2342 {
2343 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2344 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2345 }
2346}
2347 OUTPUT:
2348 RETVAL
2349
2350int
2351munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2352 CODE:
2353{
2354 STRLEN svlen;
2355 void *addr = SvPVbyte (scalar, svlen);
2356 size_t len = SvUV (length);
2357
2358 if (offset < 0)
2359 offset += svlen;
2360
2361 if (offset < 0 || offset > svlen)
2362 croak ("offset outside of scalar");
2363
2364 if (!SvOK (length) || len + offset > svlen)
2365 len = svlen - offset;
2366
2367 addr = (void *)(((intptr_t)addr) + offset);
2368 eio_page_align (&addr, &len);
2369#if _POSIX_MEMLOCK_RANGE
2370 RETVAL = munlock (addr, len);
2371#else
2372 RETVAL = EIO_ENOSYS ();
2373#endif
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379mlockall (int flags)
2380 PROTOTYPE: $;
2381 CODE:
2382 RETVAL = eio_mlockall_sync (flags);
2383 OUTPUT:
2384 RETVAL
2385
2386int
2387munlockall ()
2388 CODE:
2389#if _POSIX_MEMLOCK
2390 munlockall ();
2391#else
2392 RETVAL = EIO_ENOSYS ();
2393#endif
2394 OUTPUT:
2395 RETVAL
2396
2397int
2398statx (SV8 *pathname, int flags, UV mask)
2399 CODE:
2400{
2401 /* undocumented, and might go away, and anyway, should use eio_statx */
2402 SV *wdsv = 0;
2403 SV *pathsv = 0;
2404 eio_wd wd = EIO_CWD;
2405 void *ptr;
2406 int res;
2407
2408 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2409 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2410
2411 SvREFCNT_dec (pathsv);
2412 SvREFCNT_dec (wdsv);
2413}
2414 OUTPUT:
2415 RETVAL
2416
2417U32
2418stx_mode ()
1701 PROTOTYPE: 2419 PROTOTYPE:
1702 CODE: 2420 CODE:
1703 poll_wait (); 2421#if HAVE_STATX
2422 RETVAL = stx.stx_mode;
2423#else
2424 XSRETURN_UNDEF;
2425#endif
2426 OUTPUT:
2427 RETVAL
1704 2428
2429#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2430#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2431#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2432#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2433#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2434#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2435#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2436#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2437#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2438#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2439#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2440#define STATX_OFFSET_size statx_offsetof (stx_size)
2441#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2442#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2443#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2444#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2445#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2446#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2447
2448U32
2449stx_mask ()
2450 PROTOTYPE:
2451 ALIAS:
2452 stx_mask = STATX_OFFSET_mask
2453 stx_blksize = STATX_OFFSET_blksize
2454 stx_nlink = STATX_OFFSET_nlink
2455 stx_uid = STATX_OFFSET_uid
2456 stx_gid = STATX_OFFSET_gid
2457 stx_rdev_major = STATX_OFFSET_rdev_major
2458 stx_rdev_minor = STATX_OFFSET_rdev_minor
2459 stx_dev_major = STATX_OFFSET_dev_major
2460 stx_dev_minor = STATX_OFFSET_dev_minor
2461 CODE:
2462#if HAVE_STATX
2463 RETVAL = *(__u32 *)((char *)&stx + ix);
2464#else
2465 XSRETURN_UNDEF;
2466#endif
2467 OUTPUT:
2468 RETVAL
2469
2470VAL64
2471stx_attributes ()
2472 PROTOTYPE:
2473 ALIAS:
2474 stx_attributes = STATX_OFFSET_attributes
2475 stx_ino = STATX_OFFSET_ino
2476 stx_size = STATX_OFFSET_size
2477 stx_blocks = STATX_OFFSET_blocks
2478 stx_attributes_mask = STATX_OFFSET_attributes_mask
2479 CODE:
2480#if HAVE_STATX
2481 RETVAL = *(__u64 *)((char *)&stx + ix);
2482#else
2483 XSRETURN_UNDEF;
2484#endif
2485 OUTPUT:
2486 RETVAL
2487
2488NV
2489stx_atime ()
2490 PROTOTYPE:
2491 ALIAS:
2492 stx_atime = STATX_OFFSET_atime
2493 stx_btime = STATX_OFFSET_btime
2494 stx_ctime = STATX_OFFSET_ctime
2495 stx_mtime = STATX_OFFSET_mtime
2496 CODE:
2497#if HAVE_STATX
2498 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2499 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2500#else
2501 XSRETURN_UNDEF;
2502#endif
2503 OUTPUT:
2504 RETVAL
2505
2506VAL64
2507stx_atimesec ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_atimesec = STATX_OFFSET_atime
2511 stx_btimesec = STATX_OFFSET_btime
2512 stx_ctimesec = STATX_OFFSET_ctime
2513 stx_mtimesec = STATX_OFFSET_mtime
2514 CODE:
2515#if HAVE_STATX
2516 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2517 RETVAL = ts->tv_sec;
2518#else
2519 XSRETURN_UNDEF;
2520#endif
2521 OUTPUT:
2522 RETVAL
2523
2524U32
2525stx_atimensec ()
2526 PROTOTYPE:
2527 ALIAS:
2528 stx_atimensec = STATX_OFFSET_atime
2529 stx_btimensec = STATX_OFFSET_btime
2530 stx_ctimensec = STATX_OFFSET_ctime
2531 stx_mtimensec = STATX_OFFSET_mtime
2532 CODE:
2533#if HAVE_STATX
2534 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2535 RETVAL = ts->tv_nsec;
2536#else
2537 RETVAL = 0;
2538#endif
2539 OUTPUT:
2540 RETVAL
2541
1705void 2542void
1706setsig (int signum = SIGIO) 2543accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2544 PPCODE:
2545{
2546 SV *retval;
2547#if HAVE_ACCEPT4
2548 socklen_t salen_ = salen ? salen + 1 : 0;
2549
2550 if (salen)
2551 {
2552 sv_upgrade (sockaddr, SVt_PV);
2553 sv_grow (sockaddr, salen_);
2554 }
2555
2556 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2557
2558 retval = newmortalFH (res, O_RDWR);
2559
2560 if (res >= 0 && salen > 0)
2561 {
2562 if (salen_ > salen + 1)
2563 salen_ = salen + 1;
2564
2565 SvPOK_only (sockaddr);
2566 SvCUR_set (sockaddr, salen_);
2567 }
2568#else
2569 errno = ENOSYS;
2570 retval = &PL_sv_undef;
2571#endif
2572 XPUSHs (retval);
2573}
2574
2575ssize_t
2576splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2577 CODE:
2578{
2579#if HAVE_LINUX_SPLICE
2580 loff_t off_in_, off_out_;
2581 RETVAL = splice (
2582 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2583 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2584 length, flags
2585 );
2586#else
2587 RETVAL = EIO_ENOSYS ();
2588#endif
2589}
2590 OUTPUT:
2591 RETVAL
2592
2593ssize_t
2594tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2595 CODE:
2596#if HAVE_LINUX_SPLICE
2597 RETVAL = tee (rfh, wfh, length, flags);
2598#else
2599 RETVAL = EIO_ENOSYS ();
2600#endif
2601 OUTPUT:
2602 RETVAL
2603
2604int
2605pipesize (aio_rfd rfh, int new_size = -1)
2606 PROTOTYPE: $;$
2607 CODE:
2608#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2609 if (new_size >= 0)
2610 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2611 else
2612 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2613#else
2614 errno = ENOSYS;
2615 RETVAL = -1;
2616#endif
2617 OUTPUT:
2618 RETVAL
2619
2620void
2621pipe2 (int flags = 0)
1707 PROTOTYPE: ;$ 2622 PROTOTYPE: ;$
1708 CODE:
1709{
1710 if (block_sig_level)
1711 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712
1713 LOCK (reslock);
1714 main_tid = pthread_self ();
1715 main_sig = signum;
1716 UNLOCK (reslock);
1717
1718 if (main_sig && npending)
1719 pthread_kill (main_tid, main_sig);
1720}
1721
1722void
1723aio_block (SV *cb)
1724 PROTOTYPE: &
1725 PPCODE: 2623 PPCODE:
1726{ 2624{
1727 int count; 2625 int fd[2];
2626 int res;
1728 2627
1729 block_sig (); 2628 if (flags)
1730 PUSHMARK (SP); 2629#if HAVE_PIPE2
1731 PUTBACK; 2630 res = pipe2 (fd, flags);
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2631#else
1733 SPAGAIN; 2632 res = (errno = ENOSYS, -1);
1734 unblock_sig (); 2633#endif
2634 else
2635 res = pipe (fd);
1735 2636
1736 if (SvTRUE (ERRSV)) 2637 if (!res)
1737 croak (0); 2638 {
2639 EXTEND (SP, 2);
2640 PUSHs (newmortalFH (fd[0], O_RDONLY));
2641 PUSHs (newmortalFH (fd[1], O_WRONLY));
2642 }
2643}
1738 2644
1739 XSRETURN (count); 2645void
2646pidfd_open (int pid, unsigned int flags = 0)
2647 PPCODE:
2648{
2649 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2650 int fd = syscall (SYS_pidfd_open, pid, flags);
2651 XPUSHs (newmortalFH (fd, O_RDWR));
1740} 2652}
1741 2653
1742int 2654int
1743nreqs() 2655pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1744 PROTOTYPE: 2656 PPCODE:
2657{
2658 int res;
2659 siginfo_t si = { 0 };
2660
2661 if (SvOK (siginfo))
2662 {
2663 HV *hv;
2664 SV **svp;
2665
2666 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2667 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2668
2669 hv = (HV *)SvRV (siginfo);
2670
2671 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2672 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2673 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2674 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2675 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2676 }
2677
2678 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2679 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2680
2681 XPUSHs (sv_2mortal (newSViv (res)));
2682}
2683
2684void
2685pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2689 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2694eventfd (unsigned int initval = 0, int flags = 0)
2695 PPCODE:
2696{
2697 int fd;
2698#if HAVE_EVENTFD
2699 fd = eventfd (initval, flags);
2700#else
2701 fd = (errno = ENOSYS, -1);
2702#endif
2703
2704 XPUSHs (newmortalFH (fd, O_RDWR));
2705}
2706
2707void
2708timerfd_create (int clockid, int flags = 0)
2709 PPCODE:
2710{
2711 int fd;
2712#if HAVE_TIMERFD
2713 fd = timerfd_create (clockid, flags);
2714#else
2715 fd = (errno = ENOSYS, -1);
2716#endif
2717
2718 XPUSHs (newmortalFH (fd, O_RDWR));
2719}
2720
2721void
2722timerfd_settime (SV *fh, int flags, NV interval, NV value)
2723 PPCODE:
2724{
2725 int fd = s_fileno_croak (fh, 0);
2726#if HAVE_TIMERFD
2727 int res;
2728 struct itimerspec its, ots;
2729
2730 ts_set (&its.it_interval, interval);
2731 ts_set (&its.it_value , value);
2732 res = timerfd_settime (fd, flags, &its, &ots);
2733
2734 if (!res)
2735 {
2736 EXTEND (SP, 2);
2737 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2738 PUSHs (newSVnv (ts_get (&ots.it_value)));
2739 }
2740#else
2741 errno = ENOSYS;
2742#endif
2743}
2744
2745void
2746timerfd_gettime (SV *fh)
2747 PPCODE:
2748{
2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2751 int res;
2752 struct itimerspec ots;
2753 res = timerfd_gettime (fd, &ots);
2754
2755 if (!res)
2756 {
2757 EXTEND (SP, 2);
2758 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2759 PUSHs (newSVnv (ts_get (&ots.it_value)));
2760 }
2761#else
2762 errno = ENOSYS;
2763#endif
2764}
2765
2766void
2767memfd_create (SV8 *pathname, int flags = 0)
2768 PPCODE:
2769{
2770 int fd;
2771#if HAVE_MEMFD_CREATE
2772 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2773#else
2774 fd = (errno = ENOSYS, -1);
2775#endif
2776
2777 XPUSHs (newmortalFH (fd, O_RDWR));
2778}
2779
2780UV
2781get_fdlimit ()
1745 CODE: 2782 CODE:
1746 RETVAL = nreqs; 2783#if HAVE_RLIMITS
2784 struct rlimit rl;
2785 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2786 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2787#endif
2788 XSRETURN_UNDEF;
1747 OUTPUT: 2789 OUTPUT:
1748 RETVAL 2790 RETVAL
1749 2791
1750int 2792void
1751nready() 2793min_fdlimit (UV limit = 0x7fffffffU)
1752 PROTOTYPE:
1753 CODE: 2794 CODE:
1754 RETVAL = get_nready (); 2795{
1755 OUTPUT: 2796#if HAVE_RLIMITS
1756 RETVAL 2797 struct rlimit rl;
2798 rlim_t orig_rlim_max;
2799 UV bit;
1757 2800
1758int 2801 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1759npending() 2802 goto fail;
1760 PROTOTYPE: 2803
2804 if (rl.rlim_cur == RLIM_INFINITY)
2805 XSRETURN_YES;
2806
2807 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2808
2809 if (rl.rlim_cur < limit)
2810 {
2811 rl.rlim_cur = limit;
2812
2813 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2814 rl.rlim_max = rl.rlim_cur;
2815 }
2816
2817 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_YES;
2819
2820 if (errno == EPERM)
2821 {
2822 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2823 /* our limit overflows a system-wide limit */
2824 /* try an adaptive algorithm, but do not lower the hardlimit */
2825 rl.rlim_max = 0;
2826 for (bit = 0x40000000U; bit; bit >>= 1)
2827 {
2828 rl.rlim_max |= bit;
2829 rl.rlim_cur = rl.rlim_max;
2830
2831 /* never decrease the hard limit */
2832 if (rl.rlim_max < orig_rlim_max)
2833 break;
2834
2835 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2836 rl.rlim_max &= ~bit; /* too high, remove bit again */
2837 }
2838
2839 /* now, raise the soft limit to the max permitted */
2840 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2841 {
2842 rl.rlim_cur = rl.rlim_max;
2843 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2844 errno = EPERM;
2845 }
2846 }
2847#endif
2848 fail:
2849 XSRETURN_UNDEF;
2850}
2851
2852void _on_next_submit (SV *cb)
1761 CODE: 2853 CODE:
1762 RETVAL = get_npending (); 2854 SvREFCNT_dec (on_next_submit);
1763 OUTPUT: 2855 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1764 RETVAL
1765 2856
1766int 2857PROTOTYPES: DISABLE
1767nthreads() 2858
1768 PROTOTYPE: 2859MODULE = IO::AIO PACKAGE = IO::AIO::WD
2860
2861BOOT:
2862{
2863 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2864 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2865}
2866
2867void
2868DESTROY (SV *self)
1769 CODE: 2869 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2870{
1771 RETVAL = started; 2871 aio_wd wd = SvAIO_WD (self);
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 2872#if HAVE_AT
1773 OUTPUT: 2873 {
1774 RETVAL 2874 SV *callback = &PL_sv_undef;
1775 2875 dREQ; /* clobbers next_pri :/ */
1776PROTOTYPES: DISABLE 2876 next_pri = req->pri; /* restore next_pri */
2877 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2878 req->type = EIO_WD_CLOSE;
2879 req->wd = wd;
2880 REQ_SEND;
2881 }
2882#else
2883 eio_wd_close_sync (wd);
2884#endif
2885}
1777 2886
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2887MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 2888
1780void 2889void
1781cancel (aio_req_ornot req) 2890cancel (aio_req_ornot req)
1782 CODE: 2891 CODE:
1783 req_cancel (req); 2892 eio_cancel (req);
1784 2893
1785void 2894void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2895cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 CODE: 2896 PPCODE:
2897{
2898 if (GIMME_V != G_VOID)
2899 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2900
2901 if (items > 1)
2902 {
2903 SV *cb_cv = get_cb (callback);
2904
1788 SvREFCNT_dec (req->callback); 2905 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 2906 req->callback = SvREFCNT_inc (cb_cv);
2907 }
2908}
1790 2909
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2910MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 2911
1793void 2912void
1794add (aio_req grp, ...) 2913add (aio_req grp, ...)
1795 PPCODE: 2914 PPCODE:
1796{ 2915{
1797 int i; 2916 int i;
1798 aio_req req;
1799
1800 if (main_sig && !block_sig_level)
1801 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1802 2917
1803 if (grp->int1 == 2) 2918 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2919 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 2920
1806 for (i = 1; i < items; ++i ) 2921 for (i = 1; i < items; ++i )
1807 { 2922 {
2923 aio_req req;
2924
1808 if (GIMME_V != G_VOID) 2925 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2926 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 2927
1811 req = SvAIO_REQ (ST (i)); 2928 req = SvAIO_REQ (ST (i));
1812 2929
1813 if (req) 2930 if (req)
1814 { 2931 eio_grp_add (grp, req);
1815 ++grp->size;
1816 req->grp = grp;
1817
1818 req->grp_prev = 0;
1819 req->grp_next = grp->grp_first;
1820
1821 if (grp->grp_first)
1822 grp->grp_first->grp_prev = req;
1823
1824 grp->grp_first = req;
1825 }
1826 } 2932 }
1827} 2933}
1828 2934
1829void 2935void
1830cancel_subs (aio_req_ornot req) 2936cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 2945 AV *av;
1840 2946
1841 grp->errorno = errno; 2947 grp->errorno = errno;
1842 2948
1843 av = newAV (); 2949 av = newAV ();
2950 av_extend (av, items - 1);
1844 2951
1845 for (i = 1; i < items; ++i ) 2952 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 2953 av_push (av, newSVsv (ST (i)));
1847 2954
1848 SvREFCNT_dec (grp->sv1); 2955 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 2962 grp->errorno = errorno;
1856 2963
1857void 2964void
1858limit (aio_req grp, int limit) 2965limit (aio_req grp, int limit)
1859 CODE: 2966 CODE:
1860 grp->int2 = limit; 2967 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 2968
1863void 2969void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 2970feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 2971 CODE:
1866{ 2972{
1867 SvREFCNT_dec (grp->sv2); 2973 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 2974 grp->sv2 = newSVsv (callback);
2975 grp->feed = aio_grp_feed;
1869 2976
1870 if (grp->int2 <= 0) 2977 if (grp->int2 <= 0)
1871 grp->int2 = 2; 2978 grp->int2 = 2;
1872 2979
1873 aio_grp_feed (grp); 2980 eio_grp_limit (grp, grp->int2);
1874} 2981}
1875 2982

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