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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.83 by root, Sat Oct 28 00:17:30 2006 UTC vs.
Revision 1.267 by root, Sat Aug 25 19:25:32 2018 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#if !defined mg_findext
18 10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 11#endif
20 12
21#include <stddef.h> 13#include <stddef.h>
14#include <stdlib.h>
22#include <errno.h> 15#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
26#include <sys/stat.h> 18#include <sys/stat.h>
27#include <limits.h> 19#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 20#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 21#include <sched.h>
32 22
33#if HAVE_SENDFILE 23#if HAVE_SYS_MKDEV_H
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h> 24# include <sys/mkdev.h>
25#elif HAVE_SYS_SYSMACROS_H
26# include <sys/sysmacros.h>
27#endif
28
29#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
38# include <sys/uio.h> 30# include <sys/mman.h>
39# elif __hpux 31#endif
32
33/* the incompetent fool that created musl keeps __linux__, refuses
34 * to implement any linux standard apis, and also has no way to test
35 * for his broken iplementation. don't complain to me if this fails
36 * for you.
37 */
38#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
39# include <linux/fs.h>
40# ifdef FS_IOC_FIEMAP
41# include <linux/types.h>
42# include <linux/fiemap.h>
43# define HAVE_FIEMAP 1
44# endif
45#endif
46
47/* perl namespace pollution */
48#undef VERSION
49
50/* perl stupidly overrides readdir and maybe others */
51/* with thread-unsafe versions, imagine that :( */
52#undef readdir
53#undef opendir
54#undef closedir
55
56#ifdef _WIN32
57
58 // perl overrides all those nice libc functions
59
60 #undef malloc
61 #undef free
62 #undef open
63 #undef read
64 #undef write
65 #undef send
66 #undef recv
67 #undef stat
68 #undef lstat
69 #undef fstat
70 #undef truncate
71 #undef ftruncate
72 #undef open
73 #undef link
74 #undef close
75 #undef unlink
76 #undef mkdir
77 #undef rmdir
78 #undef rename
79 #undef lseek
80 #undef opendir
81 #undef readdir
82 #undef closedir
83 #undef chmod
84 #undef fchmod
85 #undef dup
86 #undef dup2
87 #undef abort
88 #undef pipe
89 #undef utime
90
91 #define EIO_STRUCT_STAT struct _stati64
92 #define EIO_STRUCT_STATI64
93
94#else
95
40# include <sys/socket.h> 96 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 97 #include <sys/select.h>
98 #include <unistd.h>
99 #include <utime.h>
100 #include <signal.h>
101
102 #define EIO_STRUCT_STAT Stat_t
103
104#endif
105
106/*****************************************************************************/
107
108#if __GNUC__ >= 3
109# define expect(expr,value) __builtin_expect ((expr),(value))
110#else
111# define expect(expr,value) (expr)
112#endif
113
114#define expect_false(expr) expect ((expr) != 0, 0)
115#define expect_true(expr) expect ((expr) != 0, 1)
116
117/*****************************************************************************/
118
119#include "config.h"
120
121#if HAVE_ST_XTIMENSEC
122# define ATIMENSEC PL_statcache.st_atimensec
123# define MTIMENSEC PL_statcache.st_mtimensec
124# define CTIMENSEC PL_statcache.st_ctimensec
125#elif HAVE_ST_XTIMESPEC
126# define ATIMENSEC PL_statcache.st_atim.tv_nsec
127# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
128# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
129#else
130# define ATIMENSEC 0
131# define MTIMENSEC 0
132# define CTIMENSEC 0
133#endif
134
135#if HAVE_ST_BIRTHTIMENSEC
136# define BTIMESEC PL_statcache.st_birthtime
137# define BTIMENSEC PL_statcache.st_birthtimensec
138#elif HAVE_ST_BIRTHTIMESPEC
139# define BTIMESEC PL_statcache.st_birthtim.tv_sec
140# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
141#else
142# define BTIMESEC 0
143# define BTIMENSEC 0
144#endif
145
146#if HAVE_ST_GEN
147# define ST_GEN PL_statcache.st_gen
148#else
149# define ST_GEN 0
150#endif
151
152#include "schmorp.h"
153
154#if HAVE_EVENTFD
155# include <sys/eventfd.h>
156#endif
157
158#if HAVE_TIMERFD
159# include <sys/timerfd.h>
160#endif
161
162#if HAVE_RLIMITS
163 #include <sys/time.h>
164 #include <sys/resource.h>
165#endif
166
167typedef SV SV8; /* byte-sv, used for argument-checking */
168typedef int aio_rfd; /* read file desriptor */
169typedef int aio_wfd; /* write file descriptor */
170
171static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
172
173#define EIO_REQ_MEMBERS \
174 SV *callback; \
175 SV *sv1, *sv2; \
176 SV *sv3, *sv4; \
177 STRLEN stroffset; \
178 SV *self;
179
180#define EIO_NO_WRAPPERS 1
181
182#include "libeio/eio.h"
183
184static int req_invoke (eio_req *req);
185#define EIO_FINISH(req) req_invoke (req)
186static void req_destroy (eio_req *grp);
187#define EIO_DESTROY(req) req_destroy (req)
188
189#include "libeio/eio.c"
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#if !HAVE_POSIX_MADVISE
196# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
197#endif
198
199#ifndef MAP_ANONYMOUS
200# ifdef MAP_ANON
201# define MAP_ANONYMOUS MAP_ANON
43# else 202# else
44# error sendfile support requested but not available 203# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 204# endif
46#endif 205#endif
47 206
48/* used for struct dirent, AIX doesn't provide it */ 207#ifndef makedev
49#ifndef NAME_MAX 208# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif
52
53#ifndef PTHREAD_STACK_MIN
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 209#endif
210#ifndef major
211# define major(dev) ((dev) >> 8)
76#endif 212#endif
213#ifndef minor
214# define minor(dev) ((dev) & 0xff)
215#endif
77 216
78/* buffer size for various temporary buffers */ 217/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
79#define AIO_BUFSIZE 65536 218#ifdef __sun
219# undef PAGESIZE
220#endif
80 221
81#define dBUF \ 222#if PAGESIZE <= 0
82 char *aio_buf; \ 223# define PAGESIZE sysconf (_SC_PAGESIZE)
83 LOCK (wrklock); \ 224#endif
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 225
85 UNLOCK (wrklock); \ 226/*****************************************************************************/
86 if (!aio_buf) \ 227
228#if !_POSIX_MAPPED_FILES
229# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
230# define munmap(addr,length) EIO_ENOSYS ()
231#endif
232
233#if !_POSIX_MEMORY_PROTECTION
234# define mprotect(addr,len,prot) EIO_ENOSYS ()
235#endif
236
237#if !MREMAP_MAYMOVE
238# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
239#endif
240
241#define FOREIGN_MAGIC PERL_MAGIC_ext
242
243static int ecb_cold
244mmap_free (pTHX_ SV *sv, MAGIC *mg)
245{
246 int old_errno = errno;
247 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
248 errno = old_errno;
249
250 mg->mg_obj = 0; /* just in case */
251
252 SvREADONLY_off (sv);
253
254 if (SvPVX (sv) != mg->mg_ptr)
255 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
256
257 SvCUR_set (sv, 0);
258 SvPVX (sv) = 0;
259 SvOK_off (sv);
260
87 return -1; 261 return 0;
262}
88 263
89enum { 264static MGVTBL mmap_vtbl = {
90 REQ_QUIT, 265 0, 0, 0, 0, mmap_free
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_MKNOD, REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101}; 266};
102 267
103#define AIO_REQ_KLASS "IO::AIO::REQ" 268static int ecb_cold
104#define AIO_GRP_KLASS "IO::AIO::GRP" 269sysfree_free (pTHX_ SV *sv, MAGIC *mg)
105
106typedef struct aio_cb
107{ 270{
108 struct aio_cb *volatile next; 271 free (mg->mg_ptr);
272 mg->mg_obj = 0; /* just in case */
109 273
110 SV *data, *callback; 274 SvREADONLY_off (sv);
111 SV *fh, *fh2;
112 void *dataptr, *data2ptr;
113 Stat_t *statdata;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117 275
118 STRLEN dataoffset; 276 if (SvPVX (sv) != mg->mg_ptr)
119 int type; 277 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123 278
124 unsigned char flags; 279 SvCUR_set (sv, 0);
125 unsigned char pri; 280 SvPVX (sv) = 0;
281 SvOK_off (sv);
126 282
127 SV *self; /* the perl counterpart of this request, if any */ 283 return 0;
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 284}
129} aio_cb;
130 285
131enum { 286static MGVTBL sysfree_vtbl = {
132 FLAG_CANCELLED = 0x01, 287 0, 0, 0, 0, sysfree_free
133}; 288};
134 289
135typedef aio_cb *aio_req; 290/*****************************************************************************/
136typedef aio_cb *aio_req_ornot;
137 291
138enum { 292/* helper: set scalar to foreign ptr with custom free */
139 PRI_MIN = -4, 293static void
140 PRI_MAX = 4, 294sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
141
142 DEFAULT_PRI = 0,
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150
151#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153#else
154# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155#endif
156
157#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159
160/* worker threads management */
161static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
162
163typedef struct worker {
164 /* locked by wrklock */
165 struct worker *prev, *next;
166
167 pthread_t tid;
168
169 /* locked by reslock, reqlock or wrklock */
170 aio_req req; /* currently processed request */
171 void *dbuf;
172 DIR *dirp;
173} worker;
174
175static worker wrk_first = { &wrk_first, &wrk_first, 0 };
176
177static void worker_clear (worker *wrk)
178{ 295{
179 if (wrk->dirp) 296 sv_force_normal (sv);
297
298 /* we store the length in mg_obj, as namlen is I32 :/ */
299 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
300 ->mg_obj = (SV *)length;
301
302 SvUPGRADE (sv, SVt_PV); /* nop... */
303
304 if (SvLEN (sv))
305 Safefree (SvPVX (sv));
306
307 SvPVX (sv) = (char *)addr;
308 SvCUR_set (sv, length);
309 SvLEN_set (sv, 0);
310 SvPOK_only (sv);
311}
312
313static void
314sv_clear_foreign (SV *sv)
315{
316 /* todo: iterate over magic and only free ours, but of course */
317 /* the perl5porters will call that (correct) behaviour buggy */
318 sv_unmagic (sv, FOREIGN_MAGIC);
319}
320
321/*****************************************************************************/
322
323/* defines all sorts of constants to 0 unless they are already defined */
324/* also provides const_iv_ and const_niv_ macros for them */
325#include "def0.h"
326
327/*****************************************************************************/
328
329static void
330fiemap (eio_req *req)
331{
332 req->result = -1;
333
334#if HAVE_FIEMAP
335 /* assume some c99 */
336 struct fiemap *fiemap = 0;
337 size_t end_offset;
338 int count = req->int3;
339
340 req->flags |= EIO_FLAG_PTR1_FREE;
341
342 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
343 /* increase in 3.5kb steps */
344 if (count < 0)
345 count = 8;
346
347 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
348 errno = ENOMEM;
349 if (!fiemap)
350 return;
351
352 req->ptr1 = fiemap;
353
354 fiemap->fm_start = req->offs;
355 fiemap->fm_length = req->size;
356 fiemap->fm_flags = req->int2;
357 fiemap->fm_extent_count = count;
358
359 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
360 return;
361
362 if (req->int3 >= 0 /* not autosizing */
363 || !fiemap->fm_mapped_extents /* no more extents */
364 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
365 goto done;
366
367 /* else we have to loop -
368 * it would be tempting (actually I tried that first) to just query the
369 * number of extents needed, but linux often feels like not returning all
370 * extents, without telling us it left any out. this complicates
371 * this quite a bit.
372 */
373
374 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
375
376 for (;;)
180 { 377 {
181 closedir (wrk->dirp); 378 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
182 wrk->dirp = 0; 379 char scratch[3072];
183 } 380 struct fiemap *incmap = (struct fiemap *)scratch;
184 381
185 if (wrk->dbuf) 382 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
186 { 383 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
187 free (wrk->dbuf); 384 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
188 wrk->dbuf = 0; 385 incmap->fm_flags = fiemap->fm_flags;
189 } 386 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
190}
191 387
192static void worker_free (worker *wrk) 388 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
193{
194 wrk->next->prev = wrk->prev;
195 wrk->prev->next = wrk->next;
196
197 free (wrk);
198}
199
200static volatile unsigned int nreqs, nready, npending;
201static volatile unsigned int max_outstanding = 0xffffffff;
202static int respipe [2];
203
204static pthread_mutex_t reslock = AIO_MUTEX_INIT;
205static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
206static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
207
208#if WORDREAD_UNSAFE
209
210static unsigned int get_nready ()
211{
212 unsigned int retval;
213
214 LOCK (reqlock);
215 retval = nready;
216 UNLOCK (reqlock);
217
218 return retval;
219}
220
221static unsigned int get_npending ()
222{
223 unsigned int retval;
224
225 LOCK (reslock);
226 retval = npending;
227 UNLOCK (reslock);
228
229 return retval;
230}
231
232#else
233
234# define get_nready() nready
235# define get_npending() npending
236
237#endif
238
239/*
240 * a somewhat faster data structure might be nice, but
241 * with 8 priorities this actually needs <20 insns
242 * per shift, the most expensive operation.
243 */
244typedef struct {
245 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
246 int size;
247} reqq;
248
249static reqq req_queue;
250static reqq res_queue;
251
252int reqq_push (reqq *q, aio_req req)
253{
254 int pri = req->pri;
255 req->next = 0;
256
257 if (q->qe[pri])
258 {
259 q->qe[pri]->next = req;
260 q->qe[pri] = req;
261 }
262 else
263 q->qe[pri] = q->qs[pri] = req;
264
265 return q->size++;
266}
267
268aio_req reqq_shift (reqq *q)
269{
270 int pri;
271
272 if (!q->size)
273 return 0; 389 return;
274 390
275 --q->size; 391 if (!incmap->fm_mapped_extents)
392 goto done;
276 393
277 for (pri = NUM_PRI; pri--; ) 394 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
278 { 395 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
279 aio_req req = q->qs[pri]; 396 errno = ENOMEM;
280
281 if (req) 397 if (!fiemap)
398 return;
399
400 req->ptr1 = fiemap;
401
402 for (count = 0; count < incmap->fm_mapped_extents; ++count)
282 { 403 {
283 if (!(q->qs[pri] = req->next)) 404 struct fiemap_extent *e = incmap->fm_extents + count;
284 q->qe[pri] = 0;
285 405
286 return req; 406 if (e->fe_logical + e->fe_length >= end_offset)
407 goto done;
408
409 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
410
411 if (e->fe_flags & FIEMAP_EXTENT_LAST)
412 goto done;
413
287 } 414 }
288 } 415 }
289 416
290 abort (); 417done:
291} 418 req->result = 0;
292 419
293static int poll_cb (int max); 420#else
294static void req_invoke (aio_req req); 421 errno = ENOSYS;
422#endif
423}
424
425/*****************************************************************************/
426
427static int close_fd; /* dummy fd to close fds via dup2 */
428
429enum {
430 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
431};
432
433typedef eio_req *aio_req;
434typedef eio_req *aio_req_ornot;
435typedef eio_wd aio_wd;
436
437static SV *on_next_submit;
438static int next_pri = EIO_PRI_DEFAULT;
439static int max_outstanding;
440
441static s_epipe respipe;
442
295static void req_free (aio_req req); 443static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 444static void req_cancel (aio_req req);
297 445
446static void
447want_poll (void)
448{
449 /* write a dummy byte to the pipe so fh becomes ready */
450 s_epipe_signal (&respipe);
451}
452
453static void
454done_poll (void)
455{
456 /* read any signals sent by the worker threads */
457 s_epipe_drain (&respipe);
458}
459
298/* must be called at most once */ 460/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 461static SV *
462req_sv (aio_req req, HV *stash)
300{ 463{
301 if (!req->self) 464 if (!req->self)
302 { 465 {
303 req->self = (SV *)newHV (); 466 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 467 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 468 }
306 469
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 470 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 471}
309 472
310static aio_req SvAIO_REQ (SV *sv) 473static SV *
474newSVaio_wd (aio_wd wd)
475{
476 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
477}
478
479static aio_req
480SvAIO_REQ (SV *sv)
311{ 481{
312 MAGIC *mg; 482 MAGIC *mg;
313 483
314 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 484 if (!SvROK (sv)
485 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
486 || (SvSTASH (SvRV (sv)) != aio_grp_stash
487 && SvSTASH (SvRV (sv)) != aio_req_stash
488 && !sv_derived_from (sv, "IO::AIO::REQ")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 489 croak ("object of class IO::AIO::REQ expected");
316 490
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 491 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 492
319 return mg ? (aio_req)mg->mg_ptr : 0; 493 return mg ? (aio_req)mg->mg_ptr : 0;
320} 494}
321 495
496static aio_wd
497SvAIO_WD (SV *sv)
498{
499 if (!SvROK (sv)
500 || SvTYPE (SvRV (sv)) != SVt_PVMG
501 || SvSTASH (SvRV (sv)) != aio_wd_stash)
502 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
503
504 return (aio_wd)(long)SvIVX (SvRV (sv));
505}
506
507static SV *
508newmortalFH (int fd, int flags)
509{
510 if (fd < 0)
511 return &PL_sv_undef;
512
513 GV *gv = (GV *)sv_newmortal ();
514 char sym[64];
515 int symlen;
516
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
518 gv_init (gv, aio_stash, sym, symlen, 0);
519
520 symlen = snprintf (
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 fd
526 );
527
528 return do_open (gv, sym, symlen, 0, 0, 0, 0)
529 ? (SV *)gv : &PL_sv_undef;
530}
531
532static void
322static void aio_grp_feed (aio_req grp) 533aio_grp_feed (aio_req grp)
323{ 534{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 535 if (grp->sv2 && SvOK (grp->sv2))
325 { 536 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 537 dSP;
331 538
332 ENTER; 539 ENTER;
333 SAVETMPS; 540 SAVETMPS;
334 PUSHMARK (SP); 541 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 542 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 543 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 544 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 545 SPAGAIN;
339 FREETMPS; 546 FREETMPS;
340 LEAVE; 547 LEAVE;
341 }
342
343 /* stop if no progress has been made */
344 if (old_len == grp->length)
345 {
346 SvREFCNT_dec (grp->fh2);
347 grp->fh2 = 0;
348 break;
349 }
350 } 548 }
351} 549}
352 550
353static void aio_grp_dec (aio_req grp) 551static void
552req_submit (eio_req *req)
354{ 553{
355 --grp->length; 554 eio_submit (req);
356 555
357 /* call feeder, if applicable */ 556 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 557 {
363 req_invoke (grp); 558 dSP;
364 req_free (grp); 559 SV *cb = sv_2mortal (on_next_submit);
560
561 on_next_submit = 0;
562
563 PUSHMARK (SP);
564 PUTBACK;
565 call_sv (cb, G_DISCARD | G_EVAL);
365 } 566 }
366} 567}
367 568
569static int
368static void req_invoke (aio_req req) 570req_invoke (eio_req *req)
369{ 571{
370 dSP; 572 if (req->flags & FLAG_SV2_RO_OFF)
573 SvREADONLY_off (req->sv2);
371 574
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 575 if (!EIO_CANCELLED (req) && req->callback)
373 { 576 {
577 dSP;
578 static SV *sv_result_cache; /* caches the result integer SV */
579 SV *sv_result;
580
374 ENTER; 581 ENTER;
375 SAVETMPS; 582 SAVETMPS;
376 PUSHMARK (SP); 583 PUSHMARK (SP);
377 EXTEND (SP, 1); 584 EXTEND (SP, 1);
378 585
586 /* do not recreate the result IV from scratch each time */
587 if (expect_true (sv_result_cache))
588 {
589 sv_result = sv_result_cache; sv_result_cache = 0;
590 SvIV_set (sv_result, req->result);
591 SvIOK_only (sv_result);
592 }
593 else
594 {
595 sv_result = newSViv (req->result);
596 SvREADONLY_on (sv_result);
597 }
598
379 switch (req->type) 599 switch (req->type)
380 { 600 {
601 case EIO_WD_OPEN:
602 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
603 break;
604
381 case REQ_READDIR: 605 case EIO_READDIR:
382 { 606 {
383 SV *rv = &PL_sv_undef; 607 SV *rv = &PL_sv_undef;
384 608
385 if (req->result >= 0) 609 if (req->result >= 0)
386 { 610 {
387 int i; 611 int i;
388 char *buf = req->data2ptr; 612 char *names = (char *)req->ptr2;
613 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 614 AV *av = newAV ();
390 615
391 av_extend (av, req->result - 1); 616 av_extend (av, req->result - 1);
392 617
393 for (i = 0; i < req->result; ++i) 618 for (i = 0; i < req->result; ++i)
394 { 619 {
395 SV *sv = newSVpv (buf, 0); 620 if (req->int1 & EIO_READDIR_DENTS)
621 {
622 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 623
624 if (req->int1 & EIO_READDIR_CUSTOM2)
625 {
626 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
627 AV *avent = newAV ();
628
629 av_extend (avent, 2);
630
631 if (!sv_type [ent->type])
632 {
633 sv_type [ent->type] = newSViv (ent->type);
634 SvREADONLY_on (sv_type [ent->type]);
635 }
636
637 av_store (avent, 0, namesv);
638 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
639 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
640
641 av_store (av, i, newRV_noinc ((SV *)avent));
642 }
643 else
397 av_store (av, i, sv); 644 av_store (av, i, namesv);
645
646 ++ent;
647 }
648 else
649 {
650 SV *name = newSVpv (names, 0);
651 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 652 names += SvCUR (name) + 1;
653 }
399 } 654 }
400 655
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 656 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 657 }
403 658
404 PUSHs (rv); 659 PUSHs (rv);
660
661 if (req->int1 & EIO_READDIR_CUSTOM1)
662 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
405 } 663 }
406 break; 664 break;
407 665
408 case REQ_OPEN: 666 case EIO_OPEN:
667 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
668 break;
669
670 case EIO_STATVFS:
671 case EIO_FSTATVFS:
409 { 672 {
410 /* convert fd to fh */ 673 SV *rv = &PL_sv_undef;
411 SV *fh; 674
675#ifndef _WIN32
676 if (req->result >= 0)
677 {
678 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
679 HV *hv = newHV ();
680 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
681 * chooses to make it a struct.
682 */
683 unsigned long fsid = 0;
684 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
412 685
413 PUSHs (sv_2mortal (newSViv (req->result))); 686 rv = sv_2mortal (newRV_noinc ((SV *)hv));
414 PUTBACK;
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
416 SPAGAIN;
417 687
418 fh = SvREFCNT_inc (POPs); 688 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
689 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
690 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
691 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
692 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
693 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
694 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
695 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
696 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
697 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
698 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
699 }
700#endif
419 701
420 PUSHMARK (SP); 702 PUSHs (rv);
421 XPUSHs (sv_2mortal (fh));
422 } 703 }
704
423 break; 705 break;
424 706
425 case REQ_GROUP: 707 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 708 req->int1 = 2; /* mark group as finished */
427 709
428 if (req->data) 710 if (req->sv1)
429 { 711 {
430 int i; 712 int i;
431 AV *av = (AV *)req->data; 713 AV *av = (AV *)req->sv1;
432 714
433 EXTEND (SP, AvFILL (av) + 1); 715 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 716 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 717 PUSHs (*av_fetch (av, i, 0));
436 } 718 }
437 break; 719 break;
438 720
439 case REQ_NOP: 721 case EIO_NOP:
440 case REQ_BUSY: 722 case EIO_BUSY:
441 break; 723 break;
442 724
725 case EIO_READLINK:
726 case EIO_REALPATH:
727 if (req->result > 0)
728 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
729 break;
730
731 case EIO_STAT:
732 case EIO_LSTAT:
733 case EIO_FSTAT:
734 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
735
736 if (!(PL_laststatval = req->result))
737 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
738 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
739
740 PUSHs (sv_result);
741 break;
742
743 case EIO_SEEK:
744 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
745 break;
746
747 case EIO_READ:
748 {
749 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
750 *SvEND (req->sv2) = 0;
751 SvPOK_only (req->sv2);
752 SvSETMAGIC (req->sv2);
753 PUSHs (sv_result);
754 }
755 break;
756
757 case EIO_SLURP:
758 {
759 if (req->result >= 0)
760 {
761 /* if length was originally not known, we steal the malloc'ed memory */
762 if (req->flags & EIO_FLAG_PTR2_FREE)
763 {
764 req->flags &= ~EIO_FLAG_PTR2_FREE;
765 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
766 }
767 else
768 {
769 SvCUR_set (req->sv2, req->result);
770 *SvEND (req->sv2) = 0;
771 SvPOK_only (req->sv2);
772 }
773
774 SvSETMAGIC (req->sv2);
775 }
776
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_CUSTOM:
782 if (req->feed == fiemap)
783 {
784#if HAVE_FIEMAP
785 if (!req->result)
786 {
787 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
788
789 if (fiemap->fm_extent_count)
790 {
791 AV *av = newAV ();
792 int i;
793
794 while (fiemap->fm_mapped_extents)
795 {
796 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
797 AV *ext_av = newAV ();
798
799 av_store (ext_av, 3, newSVuv (extent->fe_flags));
800 av_store (ext_av, 2, newSVval64 (extent->fe_length));
801 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
802 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
803
804 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
805 }
806
807 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
808 }
809 else
810 {
811 SvIV_set (sv_result, fiemap->fm_mapped_extents);
812 PUSHs (sv_result);
813 }
814 }
815#endif
816 }
817 else
818 PUSHs (sv_result);
819 break;
820
821 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
822 if (req->result > 0)
823 SvIV_set (sv_result, 0);
824 /* FALLTHROUGH */
825
443 default: 826 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 827 PUSHs (sv_result);
445 break; 828 break;
446 } 829 }
447 830
448 errno = req->errorno; 831 errno = req->errorno;
449 832
450 PUTBACK; 833 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 834 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 835 SPAGAIN;
836
837 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
838 SvREFCNT_dec (sv_result);
839 else
840 sv_result_cache = sv_result;
453 841
454 FREETMPS; 842 FREETMPS;
455 LEAVE; 843 LEAVE;
844
845 PUTBACK;
456 } 846 }
457 847
458 if (req->grp) 848 return !!SvTRUE (ERRSV);
459 {
460 aio_req grp = req->grp;
461
462 /* unlink request */
463 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
464 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
465
466 if (grp->grp_first == req)
467 grp->grp_first = req->grp_next;
468
469 aio_grp_dec (grp);
470 }
471
472 if (SvTRUE (ERRSV))
473 {
474 req_free (req);
475 croak (0);
476 }
477} 849}
478 850
479static void req_free (aio_req req) 851static void
852req_destroy (aio_req req)
480{ 853{
481 if (req->self) 854 if (req->self)
482 { 855 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 856 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 857 SvREFCNT_dec (req->self);
485 } 858 }
486 859
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 860 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 861 SvREFCNT_dec (req->sv2);
862 SvREFCNT_dec (req->sv3);
863 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 864 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 865
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 866 free (req);
497} 867}
498 868
869static void
499static void req_cancel_subs (aio_req grp) 870req_cancel_subs (aio_req grp)
500{ 871{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 872 if (grp->type != EIO_GROUP)
504 return; 873 return;
505 874
506 SvREFCNT_dec (grp->fh2); 875 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 876 grp->sv2 = 0;
508 877
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 878 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 879}
512 880
513static void req_cancel (aio_req req) 881static void ecb_cold
882create_respipe (void)
514{ 883{
515 req->flags |= FLAG_CANCELLED; 884 if (s_epipe_renew (&respipe))
516 885 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 886}
519 887
520static void *aio_proc(void *arg); 888static void
521 889poll_wait (void)
522static void start_thread (void)
523{ 890{
524 sigset_t fullsigset, oldsigset;
525 pthread_attr_t attr;
526
527 worker *wrk = calloc (1, sizeof (worker));
528
529 if (!wrk)
530 croak ("unable to allocate worker thread data");
531
532 pthread_attr_init (&attr);
533 pthread_attr_setstacksize (&attr, STACKSIZE);
534 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535#ifdef PTHREAD_SCOPE_PROCESS
536 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537#endif
538
539 sigfillset (&fullsigset);
540
541 LOCK (wrklock);
542 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543
544 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
545 {
546 wrk->prev = &wrk_first;
547 wrk->next = wrk_first.next;
548 wrk_first.next->prev = wrk;
549 wrk_first.next = wrk;
550 ++started;
551 }
552 else
553 free (wrk);
554
555 sigprocmask (SIG_SETMASK, &oldsigset, 0);
556 UNLOCK (wrklock);
557}
558
559static void maybe_start_thread ()
560{
561#if 0
562 static struct timeval last;
563 struct timeval diff, now;
564#endif
565
566 if (started >= wanted)
567 return;
568
569 if (nready <= nreqs - get_nready () - get_npending ())
570 return;
571
572#if 0
573 gettimeofday (&now, 0);
574
575 diff.tv_sec = now.tv_sec - last.tv_sec;
576 diff.tv_usec = now.tv_usec - last.tv_usec;
577
578 if (diff.tv_usec < 0)
579 {
580 --diff.tv_sec;
581 diff.tv_usec += 1000000;
582 }
583
584 if (!diff.tv_sec && diff.tv_usec < 10000)
585 return;
586
587 last = now;
588#endif
589
590 start_thread ();
591}
592
593static void req_send (aio_req req)
594{
595 ++nreqs;
596
597 LOCK (reqlock);
598 ++nready;
599 reqq_push (&req_queue, req);
600 pthread_cond_signal (&reqwait);
601 UNLOCK (reqlock);
602
603 maybe_start_thread ();
604}
605
606static void end_thread (void)
607{
608 aio_req req;
609
610 Newz (0, req, 1, aio_cb);
611
612 req->type = REQ_QUIT;
613 req->pri = PRI_MAX + PRI_BIAS;
614
615 LOCK (reqlock);
616 reqq_push (&req_queue, req);
617 pthread_cond_signal (&reqwait);
618 UNLOCK (reqlock);
619
620 LOCK (wrklock);
621 --started;
622 UNLOCK (wrklock);
623}
624
625static void min_parallel (int nthreads)
626{
627 if (wanted < nthreads)
628 wanted = nthreads;
629}
630
631static void max_parallel (int nthreads)
632{
633 if (wanted > nthreads)
634 wanted = nthreads;
635
636 while (started > wanted)
637 end_thread ();
638}
639
640static void poll_wait ()
641{
642 fd_set rfd;
643
644 while (nreqs) 891 while (eio_nreqs ())
645 { 892 {
646 int size; 893 int size;
647 if (WORDREAD_UNSAFE) LOCK (reslock); 894
895 X_LOCK (EIO_POOL->reslock);
648 size = res_queue.size; 896 size = EIO_POOL->res_queue.size;
649 if (WORDREAD_UNSAFE) UNLOCK (reslock); 897 X_UNLOCK (EIO_POOL->reslock);
650 898
651 if (size) 899 if (size)
652 return; 900 return;
653 901
654 maybe_start_thread (); 902 etp_maybe_start_thread (EIO_POOL);
655 903
656 FD_ZERO(&rfd); 904 s_epipe_wait (&respipe);
657 FD_SET(respipe [0], &rfd);
658
659 select (respipe [0] + 1, &rfd, 0, 0, 0);
660 } 905 }
661} 906}
662 907
663static int poll_cb (int max) 908static int
909poll_cb (void)
664{ 910{
665 dSP;
666 int count = 0;
667 int do_croak = 0;
668 aio_req req;
669
670 for (;;) 911 for (;;)
671 { 912 {
672 while (max <= 0 || count < max) 913 int res = eio_poll ();
914
915 if (res > 0)
916 croak (0);
917
918 if (!max_outstanding || max_outstanding > eio_nreqs ())
919 return res;
920
921 poll_wait ();
922 }
923}
924
925static void ecb_cold
926reinit (void)
927{
928 create_respipe ();
929
930 if (eio_init (want_poll, done_poll) < 0)
931 croak ("IO::AIO: unable to initialise eio library");
932}
933
934/*****************************************************************************/
935
936static SV *
937get_cb (SV *cb_sv)
938{
939 SvGETMAGIC (cb_sv);
940 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
941}
942
943static aio_req ecb_noinline
944dreq (SV *callback)
945{
946 SV *cb_cv;
947 aio_req req;
948 int req_pri = next_pri;
949 next_pri = EIO_PRI_DEFAULT;
950
951 cb_cv = get_cb (callback);
952
953 req = calloc (sizeof (*req), 1);
954 if (!req)
955 croak ("out of memory during eio_req allocation");
956
957 req->callback = SvREFCNT_inc (cb_cv);
958 req->pri = req_pri;
959
960 return req;
961}
962
963#define dREQ \
964 aio_req req = dreq (callback); \
965
966#define REQ_SEND \
967 PUTBACK; \
968 req_submit (req); \
969 SPAGAIN; \
970 \
971 if (GIMME_V != G_VOID) \
972 XPUSHs (req_sv (req, aio_req_stash));
973
974ecb_inline void
975req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
976{
977 if (expect_false (SvROK (path)))
978 {
979 SV *rv = SvRV (path);
980 SV *wdob;
981
982 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
673 { 983 {
674 maybe_start_thread (); 984 path = AvARRAY (rv)[1];
985 wdob = AvARRAY (rv)[0];
675 986
676 LOCK (reslock); 987 if (SvOK (wdob))
677 req = reqq_shift (&res_queue);
678
679 if (req)
680 { 988 {
681 --npending; 989 *wd = SvAIO_WD (wdob);
682 990 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
683 if (!res_queue.size)
684 {
685 /* read any signals sent by the worker threads */
686 char buf [32];
687 while (read (respipe [0], buf, 32) == 32)
688 ;
689 }
690 }
691
692 UNLOCK (reslock);
693
694 if (!req)
695 break;
696
697 --nreqs;
698
699 if (req->type == REQ_GROUP && req->length)
700 {
701 req->fd = 1; /* mark request as delayed */
702 continue;
703 } 991 }
704 else 992 else
705 { 993 *wd = EIO_INVALID_WD;
706 if (req->type == REQ_READ)
707 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
708
709 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
710 SvREADONLY_off (req->data);
711
712 if (req->statdata)
713 {
714 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
715 PL_laststatval = req->result;
716 PL_statcache = *(req->statdata);
717 }
718
719 req_invoke (req);
720
721 count++;
722 }
723
724 req_free (req);
725 } 994 }
995 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
996 {
997 *wd = (aio_wd)(long)SvIVX (rv);
998 *wdsv = SvREFCNT_inc_NN (rv);
999 *ptr = ".";
1000 return; /* path set to "." */
1001 }
1002 else
1003 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1004 }
726 1005
727 if (nreqs <= max_outstanding) 1006 *pathsv = newSVsv (path);
1007 *ptr = SvPVbyte_nolen (*pathsv);
1008}
1009
1010static void ecb_noinline
1011req_set_path1 (aio_req req, SV *path)
1012{
1013 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1014}
1015
1016static void ecb_noinline
1017req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1018{
1019 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1020
1021 switch (SvTYPE (rv))
1022 {
1023 case SVt_PVIO:
1024 case SVt_PVLV:
1025 case SVt_PVGV:
1026 req->type = type_fh;
1027 req->sv1 = newSVsv (fh_or_path);
1028 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
728 break; 1029 break;
729 1030
730 poll_wait (); 1031 default:
731 1032 req->type = type_path;
732 max = 0; 1033 req_set_path1 (req, fh_or_path);
1034 break;
733 } 1035 }
734
735 return count;
736}
737
738static void create_pipe ()
739{
740 if (pipe (respipe))
741 croak ("unable to initialize result pipe");
742
743 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745
746 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
747 croak ("cannot set result pipe to nonblocking mode");
748} 1036}
749 1037
750/*****************************************************************************/ 1038/*****************************************************************************/
751/* work around various missing functions */
752 1039
753#if !HAVE_PREADWRITE 1040static void
754# define pread aio_pread 1041ts_set (struct timespec *ts, NV value)
755# define pwrite aio_pwrite
756
757/*
758 * make our pread/pwrite safe against themselves, but not against
759 * normal read/write by using a mutex. slows down execution a lot,
760 * but that's your problem, not mine.
761 */
762static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
763
764static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
765{ 1042{
766 ssize_t res; 1043 ts->tv_sec = value;
767 off_t ooffset; 1044 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
768
769 LOCK (preadwritelock);
770 ooffset = lseek (fd, 0, SEEK_CUR);
771 lseek (fd, offset, SEEK_SET);
772 res = read (fd, buf, count);
773 lseek (fd, ooffset, SEEK_SET);
774 UNLOCK (preadwritelock);
775
776 return res;
777} 1045}
778 1046
779static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1047static NV
1048ts_get (const struct timespec *ts)
780{ 1049{
781 ssize_t res; 1050 return ts->tv_sec + ts->tv_nsec * 1e-9;
782 off_t ooffset;
783
784 LOCK (preadwritelock);
785 ooffset = lseek (fd, 0, SEEK_CUR);
786 lseek (fd, offset, SEEK_SET);
787 res = write (fd, buf, count);
788 lseek (fd, offset, SEEK_SET);
789 UNLOCK (preadwritelock);
790
791 return res;
792} 1051}
793#endif
794 1052
795#if !HAVE_FDATASYNC 1053/*****************************************************************************/
796# define fdatasync fsync
797#endif
798 1054
799#if !HAVE_READAHEAD 1055XS(boot_IO__AIO) ecb_cold;
800# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
801 1056
802static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1057MODULE = IO::AIO PACKAGE = IO::AIO
803{
804 dBUF;
805 1058
806 while (count > 0) 1059PROTOTYPES: ENABLE
807 {
808 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
809 1060
810 pread (fd, aio_buf, len, offset); 1061BOOT:
811 offset += len;
812 count -= len;
813 }
814
815 errno = 0;
816}
817
818#endif
819
820#if !HAVE_READDIR_R
821# define readdir_r aio_readdir_r
822
823static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
824
825static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
826{ 1062{
827 struct dirent *e; 1063 static const struct {
828 int errorno; 1064 const char *name;
1065 IV iv;
1066 } *civ, const_iv[] = {
1067# define const_niv(name, value) { # name, (IV) value },
1068# define const_iv(name) { # name, (IV) name },
1069# define const_eio(name) { # name, (IV) EIO_ ## name },
829 1070
830 LOCK (readdirlock); 1071 /* you have to re-run ./gendef0 after adding/removing any constants here */
1072 /* the first block can be undef if missing */
1073 const_iv (ENOSYS)
1074 const_iv (EXDEV)
1075 const_iv (EBADR)
831 1076
832 e = readdir (dirp); 1077 /* for lseek */
833 errorno = errno; 1078 const_iv (SEEK_DATA)
1079 const_iv (SEEK_HOLE)
834 1080
835 if (e) 1081 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
836 { 1082 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
837 *res = ent; 1083 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
838 strcpy (ent->d_name, e->d_name); 1084 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
839 } 1085 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
840 else 1086 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
841 *res = 0;
842 1087
843 UNLOCK (readdirlock); 1088 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1089 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1090 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1091 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1092 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
844 1093
845 errno = errorno; 1094 /* the second block will be 0 when missing */
846 return e ? 0 : -1; 1095 const_iv (O_ACCMODE)
847}
848#endif
849 1096
850/* sendfile always needs emulation */ 1097 const_iv (O_RDONLY)
851static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1098 const_iv (O_WRONLY)
852{ 1099 const_iv (O_RDWR)
853 ssize_t res; 1100 const_iv (O_CREAT)
1101 const_iv (O_TRUNC)
1102 const_iv (O_EXCL)
1103 const_iv (O_APPEND)
854 1104
855 if (!count) 1105 const_iv (O_ASYNC)
856 return 0; 1106 const_iv (O_DIRECT)
1107 const_iv (O_NOATIME)
857 1108
858#if HAVE_SENDFILE 1109 const_iv (O_CLOEXEC)
859# if __linux 1110 const_iv (O_NOCTTY)
860 res = sendfile (ofd, ifd, &offset, count); 1111 const_iv (O_NOFOLLOW)
1112 const_iv (O_NONBLOCK)
1113 const_iv (O_EXEC)
1114 const_iv (O_SEARCH)
1115 const_iv (O_DIRECTORY)
1116 const_iv (O_DSYNC)
1117 const_iv (O_RSYNC)
1118 const_iv (O_SYNC)
1119 const_iv (O_PATH)
1120 const_iv (O_TMPFILE)
1121 const_iv (O_TTY_INIT)
861 1122
862# elif __freebsd 1123 const_iv (S_IFIFO)
863 /* 1124 const_iv (S_IFCHR)
864 * Of course, the freebsd sendfile is a dire hack with no thoughts 1125 const_iv (S_IFBLK)
865 * wasted on making it similar to other I/O functions. 1126 const_iv (S_IFLNK)
866 */ 1127 const_iv (S_IFREG)
1128 const_iv (S_IFDIR)
1129 const_iv (S_IFWHT)
1130 const_iv (S_IFSOCK)
1131 const_iv (S_IFMT)
1132
1133 const_iv (ST_RDONLY)
1134 const_iv (ST_NOSUID)
1135 const_iv (ST_NODEV)
1136 const_iv (ST_NOEXEC)
1137 const_iv (ST_SYNCHRONOUS)
1138 const_iv (ST_MANDLOCK)
1139 const_iv (ST_WRITE)
1140 const_iv (ST_APPEND)
1141 const_iv (ST_IMMUTABLE)
1142 const_iv (ST_NOATIME)
1143 const_iv (ST_NODIRATIME)
1144 const_iv (ST_RELATIME)
1145
1146 const_iv (PROT_NONE)
1147 const_iv (PROT_EXEC)
1148 const_iv (PROT_READ)
1149 const_iv (PROT_WRITE)
1150
1151 const_iv (MAP_PRIVATE)
1152 const_iv (MAP_SHARED)
1153 const_iv (MAP_FIXED)
1154 const_iv (MAP_ANONYMOUS)
1155
1156 /* linuxish */
1157 const_iv (MAP_LOCKED)
1158 const_iv (MAP_NORESERVE)
1159 const_iv (MAP_POPULATE)
1160 const_iv (MAP_NONBLOCK)
1161 const_iv (MAP_GROWSDOWN)
1162 const_iv (MAP_32BIT)
1163 const_iv (MAP_HUGETLB)
1164 const_iv (MAP_STACK)
1165
1166 const_iv (MREMAP_MAYMOVE)
1167 const_iv (MREMAP_FIXED)
1168
1169 const_iv (F_DUPFD_CLOEXEC)
1170
1171 const_iv (MSG_CMSG_CLOEXEC)
1172 const_iv (SOCK_CLOEXEC)
1173
1174 const_iv (F_OFD_GETLK)
1175 const_iv (F_OFD_SETLK)
1176 const_iv (F_OFD_GETLKW)
1177
1178 const_iv (FIFREEZE)
1179 const_iv (FITHAW)
1180 const_iv (FITRIM)
1181 const_iv (FICLONE)
1182 const_iv (FICLONERANGE)
1183 const_iv (FIDEDUPERANGE)
1184
1185 const_iv (FS_IOC_GETFLAGS)
1186 const_iv (FS_IOC_SETFLAGS)
1187 const_iv (FS_IOC_GETVERSION)
1188 const_iv (FS_IOC_SETVERSION)
1189 const_iv (FS_IOC_FIEMAP)
1190 const_iv (FS_IOC_FSGETXATTR)
1191 const_iv (FS_IOC_FSSETXATTR)
1192 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1193 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1194 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1195
1196 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1197
1198 const_iv (FS_SECRM_FL)
1199 const_iv (FS_UNRM_FL)
1200 const_iv (FS_COMPR_FL)
1201 const_iv (FS_SYNC_FL)
1202 const_iv (FS_IMMUTABLE_FL)
1203 const_iv (FS_APPEND_FL)
1204 const_iv (FS_NODUMP_FL)
1205 const_iv (FS_NOATIME_FL)
1206 const_iv (FS_DIRTY_FL)
1207 const_iv (FS_COMPRBLK_FL)
1208 const_iv (FS_NOCOMP_FL)
1209 const_iv (FS_ENCRYPT_FL)
1210 const_iv (FS_BTREE_FL)
1211 const_iv (FS_INDEX_FL)
1212 const_iv (FS_JOURNAL_DATA_FL)
1213 const_iv (FS_NOTAIL_FL)
1214 const_iv (FS_DIRSYNC_FL)
1215 const_iv (FS_TOPDIR_FL)
1216 const_iv (FS_FL_USER_MODIFIABLE)
1217
1218 const_iv (FS_XFLAG_REALTIME)
1219 const_iv (FS_XFLAG_PREALLOC)
1220 const_iv (FS_XFLAG_IMMUTABLE)
1221 const_iv (FS_XFLAG_APPEND)
1222 const_iv (FS_XFLAG_SYNC)
1223 const_iv (FS_XFLAG_NOATIME)
1224 const_iv (FS_XFLAG_NODUMP)
1225 const_iv (FS_XFLAG_RTINHERIT)
1226 const_iv (FS_XFLAG_PROJINHERIT)
1227 const_iv (FS_XFLAG_NOSYMLINKS)
1228 const_iv (FS_XFLAG_EXTSIZE)
1229 const_iv (FS_XFLAG_EXTSZINHERIT)
1230 const_iv (FS_XFLAG_NODEFRAG)
1231 const_iv (FS_XFLAG_FILESTREAM)
1232 const_iv (FS_XFLAG_DAX)
1233 const_iv (FS_XFLAG_HASATTR)
1234
1235 const_iv (FIEMAP_FLAG_SYNC)
1236 const_iv (FIEMAP_FLAG_XATTR)
1237 const_iv (FIEMAP_FLAGS_COMPAT)
1238 const_iv (FIEMAP_EXTENT_LAST)
1239 const_iv (FIEMAP_EXTENT_UNKNOWN)
1240 const_iv (FIEMAP_EXTENT_DELALLOC)
1241 const_iv (FIEMAP_EXTENT_ENCODED)
1242 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1243 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1244 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1245 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1246 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1247 const_iv (FIEMAP_EXTENT_MERGED)
1248 const_iv (FIEMAP_EXTENT_SHARED)
1249
1250 const_iv (SPLICE_F_MOVE)
1251 const_iv (SPLICE_F_NONBLOCK)
1252 const_iv (SPLICE_F_MORE)
1253 const_iv (SPLICE_F_GIFT)
1254
1255 const_iv (EFD_CLOEXEC)
1256 const_iv (EFD_NONBLOCK)
1257 const_iv (EFD_SEMAPHORE)
1258
1259 const_iv (CLOCK_REALTIME)
1260 const_iv (CLOCK_MONOTONIC)
1261 const_iv (CLOCK_BOOTTIME)
1262 const_iv (CLOCK_REALTIME_ALARM)
1263 const_iv (CLOCK_BOOTTIME_ALARM)
1264
1265 const_iv (TFD_NONBLOCK)
1266 const_iv (TFD_CLOEXEC)
1267
1268 const_iv (TFD_TIMER_ABSTIME)
1269 const_iv (TFD_TIMER_CANCEL_ON_SET)
1270
1271 /* these are libeio constants, and are independent of gendef0 */
1272 const_eio (SEEK_SET)
1273 const_eio (SEEK_CUR)
1274 const_eio (SEEK_END)
1275
1276 const_eio (MCL_FUTURE)
1277 const_eio (MCL_CURRENT)
1278
1279 const_eio (MS_ASYNC)
1280 const_eio (MS_INVALIDATE)
1281 const_eio (MS_SYNC)
1282
1283 const_eio (MT_MODIFY)
1284
1285 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1286 const_eio (SYNC_FILE_RANGE_WRITE)
1287 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1288
1289 const_eio (FALLOC_FL_KEEP_SIZE)
1290 const_eio (FALLOC_FL_PUNCH_HOLE)
1291 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1292 const_eio (FALLOC_FL_ZERO_RANGE)
1293 const_eio (FALLOC_FL_INSERT_RANGE)
1294 const_eio (FALLOC_FL_UNSHARE_RANGE)
1295
1296 const_eio (RENAME_NOREPLACE)
1297 const_eio (RENAME_EXCHANGE)
1298 const_eio (RENAME_WHITEOUT)
1299
1300 const_eio (READDIR_DENTS)
1301 const_eio (READDIR_DIRS_FIRST)
1302 const_eio (READDIR_STAT_ORDER)
1303 const_eio (READDIR_FOUND_UNKNOWN)
1304
1305 const_eio (DT_UNKNOWN)
1306 const_eio (DT_FIFO)
1307 const_eio (DT_CHR)
1308 const_eio (DT_DIR)
1309 const_eio (DT_BLK)
1310 const_eio (DT_REG)
1311 const_eio (DT_LNK)
1312 const_eio (DT_SOCK)
1313 const_eio (DT_WHT)
1314 };
1315
1316 aio_stash = gv_stashpv ("IO::AIO" , 1);
1317 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1318 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1319 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1320
1321 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1322 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1323
1324 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1325
1326 /* allocate dummy pipe fd for aio_close */
867 { 1327 {
868 off_t sbytes; 1328 int pipefd [2];
869 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
870 1329
871 if (res < 0 && sbytes) 1330 if (
872 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1331#ifdef _WIN32
873 res = sbytes; 1332 _pipe (pipefd, 1, _O_BINARY) < 0
1333#else
1334 pipe (pipefd) < 0
1335 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1336#endif
1337 || close (pipefd [1]) < 0
1338 )
1339 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1340
1341 close_fd = pipefd [0];
874 } 1342 }
875 1343
876# elif __hpux 1344 reinit ();
877 res = sendfile (ofd, ifd, offset, count, 0, 0);
878
879# elif __solaris
880 {
881 struct sendfilevec vec;
882 size_t sbytes;
883
884 vec.sfv_fd = ifd;
885 vec.sfv_flag = 0;
886 vec.sfv_off = offset;
887 vec.sfv_len = count;
888
889 res = sendfilev (ofd, &vec, 1, &sbytes);
890
891 if (res < 0 && sbytes)
892 res = sbytes;
893 }
894
895# endif
896#else
897 res = -1;
898 errno = ENOSYS;
899#endif
900
901 if (res < 0
902 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
903#if __solaris
904 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
905#endif
906 )
907 )
908 {
909 /* emulate sendfile. this is a major pain in the ass */
910 dBUF;
911
912 res = 0;
913
914 while (count)
915 {
916 ssize_t cnt;
917
918 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
919
920 if (cnt <= 0)
921 {
922 if (cnt && !res) res = -1;
923 break;
924 }
925
926 cnt = write (ofd, aio_buf, cnt);
927
928 if (cnt <= 0)
929 {
930 if (cnt && !res) res = -1;
931 break;
932 }
933
934 offset += cnt;
935 res += cnt;
936 count -= cnt;
937 }
938 }
939
940 return res;
941} 1345}
942 1346
943/* read a full directory */
944static void scandir_ (aio_req req, worker *self)
945{
946 DIR *dirp;
947 union
948 {
949 struct dirent d;
950 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
951 } *u;
952 struct dirent *entp;
953 char *name, *names;
954 int memlen = 4096;
955 int memofs = 0;
956 int res = 0;
957 int errorno;
958
959 LOCK (wrklock);
960 self->dirp = dirp = opendir (req->dataptr);
961 self->dbuf = u = malloc (sizeof (*u));
962 req->data2ptr = names = malloc (memlen);
963 UNLOCK (wrklock);
964
965 if (dirp && u && names)
966 for (;;)
967 {
968 errno = 0;
969 readdir_r (dirp, &u->d, &entp);
970
971 if (!entp)
972 break;
973
974 name = entp->d_name;
975
976 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
977 {
978 int len = strlen (name) + 1;
979
980 res++;
981
982 while (memofs + len > memlen)
983 {
984 memlen *= 2;
985 LOCK (wrklock);
986 req->data2ptr = names = realloc (names, memlen);
987 UNLOCK (wrklock);
988
989 if (!names)
990 break;
991 }
992
993 memcpy (names + memofs, name, len);
994 memofs += len;
995 }
996 }
997
998 if (errno)
999 res = -1;
1000
1001 req->result = res;
1002}
1003
1004/*****************************************************************************/
1005
1006static void *aio_proc (void *thr_arg)
1007{
1008 aio_req req;
1009 worker *self = (worker *)thr_arg;
1010
1011 for (;;)
1012 {
1013 LOCK (reqlock);
1014
1015 for (;;)
1016 {
1017 self->req = req = reqq_shift (&req_queue);
1018
1019 if (req)
1020 break;
1021
1022 pthread_cond_wait (&reqwait, &reqlock);
1023 }
1024
1025 --nready;
1026
1027 UNLOCK (reqlock);
1028
1029 errno = 0; /* strictly unnecessary */
1030
1031 if (!(req->flags & FLAG_CANCELLED))
1032 switch (req->type)
1033 {
1034 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1035 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1036
1037 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1038 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1039
1040 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1041 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1042 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1043
1044 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1045 case REQ_CLOSE: req->result = close (req->fd); break;
1046 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1047 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1048 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1049 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1050 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1051 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1052
1053 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1054 case REQ_FSYNC: req->result = fsync (req->fd); break;
1055 case REQ_READDIR: scandir_ (req, self); break;
1056
1057 case REQ_BUSY:
1058 {
1059 struct timeval tv;
1060
1061 tv.tv_sec = req->fd;
1062 tv.tv_usec = req->fd2;
1063
1064 req->result = select (0, 0, 0, 0, &tv);
1065 }
1066
1067 case REQ_GROUP:
1068 case REQ_NOP:
1069 break;
1070
1071 case REQ_QUIT:
1072 LOCK (wrklock);
1073 worker_free (self);
1074 --started;
1075 UNLOCK (wrklock);
1076 return 0;
1077
1078 default:
1079 req->result = ENOSYS;
1080 break;
1081 }
1082
1083 req->errorno = errno;
1084
1085 LOCK (reslock);
1086
1087 ++npending;
1088
1089 if (!reqq_push (&res_queue, req))
1090 /* write a dummy byte to the pipe so fh becomes ready */
1091 write (respipe [1], &respipe, 1);
1092
1093 self->req = 0;
1094 worker_clear (self);
1095
1096 UNLOCK (reslock);
1097 }
1098}
1099
1100/*****************************************************************************/
1101
1102static void atfork_prepare (void)
1103{
1104 LOCK (wrklock);
1105 LOCK (reqlock);
1106 LOCK (reslock);
1107#if !HAVE_PREADWRITE
1108 LOCK (preadwritelock);
1109#endif
1110#if !HAVE_READDIR_R
1111 LOCK (readdirlock);
1112#endif
1113}
1114
1115static void atfork_parent (void)
1116{
1117#if !HAVE_READDIR_R
1118 UNLOCK (readdirlock);
1119#endif
1120#if !HAVE_PREADWRITE
1121 UNLOCK (preadwritelock);
1122#endif
1123 UNLOCK (reslock);
1124 UNLOCK (reqlock);
1125 UNLOCK (wrklock);
1126}
1127
1128static void atfork_child (void)
1129{
1130 aio_req prv;
1131
1132 while (prv = reqq_shift (&req_queue))
1133 req_free (prv);
1134
1135 while (prv = reqq_shift (&res_queue))
1136 req_free (prv);
1137
1138 while (wrk_first.next != &wrk_first)
1139 {
1140 worker *wrk = wrk_first.next;
1141
1142 if (wrk->req)
1143 req_free (wrk->req);
1144
1145 worker_clear (wrk);
1146 worker_free (wrk);
1147 }
1148
1149 started = 0;
1150 nreqs = 0;
1151
1152 close (respipe [0]);
1153 close (respipe [1]);
1154 create_pipe ();
1155
1156 atfork_parent ();
1157}
1158
1159#define dREQ \
1160 aio_req req; \
1161 int req_pri = next_pri; \
1162 next_pri = DEFAULT_PRI + PRI_BIAS; \
1163 \
1164 if (SvOK (callback) && !SvROK (callback)) \
1165 croak ("callback must be undef or of reference type"); \
1166 \
1167 Newz (0, req, 1, aio_cb); \
1168 if (!req) \
1169 croak ("out of memory during aio_req allocation"); \
1170 \
1171 req->callback = newSVsv (callback); \
1172 req->pri = req_pri
1173
1174#define REQ_SEND \
1175 req_send (req); \
1176 \
1177 if (GIMME_V != G_VOID) \
1178 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1179
1180MODULE = IO::AIO PACKAGE = IO::AIO
1181
1182PROTOTYPES: ENABLE
1183
1184BOOT:
1185{
1186 HV *stash = gv_stashpv ("IO::AIO", 1);
1187
1188 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1189 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1190 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1191 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1192 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1193 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1194
1195 create_pipe ();
1196 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1197
1198 start_thread ();
1199}
1200
1201void 1347void
1202min_parallel (int nthreads) 1348reinit ()
1203 PROTOTYPE: $ 1349 PROTOTYPE:
1204 1350
1205void 1351void
1206max_parallel (int nthreads) 1352max_poll_reqs (unsigned int nreqs)
1207 PROTOTYPE: $
1208
1209int
1210max_outstanding (int maxreqs)
1211 PROTOTYPE: $ 1353 PROTOTYPE: $
1212 CODE: 1354 CODE:
1213 RETVAL = max_outstanding; 1355 eio_set_max_poll_reqs (nreqs);
1356
1357void
1358max_poll_time (double nseconds)
1359 PROTOTYPE: $
1360 CODE:
1361 eio_set_max_poll_time (nseconds);
1362
1363void
1364min_parallel (unsigned int nthreads)
1365 PROTOTYPE: $
1366 CODE:
1367 eio_set_min_parallel (nthreads);
1368
1369void
1370max_parallel (unsigned int nthreads)
1371 PROTOTYPE: $
1372 CODE:
1373 eio_set_max_parallel (nthreads);
1374
1375void
1376max_idle (unsigned int nthreads)
1377 PROTOTYPE: $
1378 CODE:
1379 eio_set_max_idle (nthreads);
1380
1381void
1382idle_timeout (unsigned int seconds)
1383 PROTOTYPE: $
1384 CODE:
1385 eio_set_idle_timeout (seconds);
1386
1387void
1388max_outstanding (unsigned int maxreqs)
1389 PROTOTYPE: $
1390 CODE:
1214 max_outstanding = maxreqs; 1391 max_outstanding = maxreqs;
1215 OUTPUT:
1216 RETVAL
1217 1392
1218void 1393void
1219aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1394aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1220 SV * pathname
1221 int flags
1222 int mode
1223 SV * callback
1224 PROTOTYPE: $$$;$
1225 PPCODE: 1395 PPCODE:
1226{ 1396{
1227 dREQ; 1397 dREQ;
1228 1398
1229 req->type = REQ_OPEN; 1399 req->type = EIO_WD_OPEN;
1230 req->data = newSVsv (pathname); 1400 req_set_path1 (req, pathname);
1231 req->dataptr = SvPVbyte_nolen (req->data);
1232 req->fd = flags;
1233 req->mode = mode;
1234 1401
1235 REQ_SEND; 1402 REQ_SEND;
1236} 1403}
1237 1404
1238void 1405void
1406aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 dREQ;
1410
1411 req->type = EIO_OPEN;
1412 req_set_path1 (req, pathname);
1413 req->int1 = flags;
1414 req->int2 = mode;
1415
1416 REQ_SEND;
1417}
1418
1419void
1239aio_close (fh,callback=&PL_sv_undef) 1420aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1240 SV * fh
1241 SV * callback
1242 PROTOTYPE: $;$
1243 ALIAS: 1421 ALIAS:
1244 aio_close = REQ_CLOSE
1245 aio_fsync = REQ_FSYNC 1422 aio_fsync = EIO_FSYNC
1246 aio_fdatasync = REQ_FDATASYNC 1423 aio_fdatasync = EIO_FDATASYNC
1424 aio_syncfs = EIO_SYNCFS
1247 PPCODE: 1425 PPCODE:
1248{ 1426{
1427 int fd = s_fileno_croak (fh, 0);
1249 dREQ; 1428 dREQ;
1250 1429
1251 req->type = ix; 1430 req->type = ix;
1252 req->fh = newSVsv (fh); 1431 req->sv1 = newSVsv (fh);
1253 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1432 req->int1 = fd;
1254 1433
1255 REQ_SEND (req); 1434 REQ_SEND;
1256} 1435}
1257 1436
1258void 1437void
1438aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1439 PPCODE:
1440{
1441 int fd = s_fileno_croak (fh, 0);
1442 dREQ;
1443
1444 req->type = EIO_SYNC_FILE_RANGE;
1445 req->sv1 = newSVsv (fh);
1446 req->int1 = fd;
1447 req->offs = offset;
1448 req->size = nbytes;
1449 req->int2 = flags;
1450
1451 REQ_SEND;
1452}
1453
1454void
1455aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1456 PPCODE:
1457{
1458 int fd = s_fileno_croak (fh, 0);
1459 dREQ;
1460
1461 req->type = EIO_FALLOCATE;
1462 req->sv1 = newSVsv (fh);
1463 req->int1 = fd;
1464 req->int2 = mode;
1465 req->offs = offset;
1466 req->size = len;
1467
1468 REQ_SEND;
1469}
1470
1471void
1472aio_close (SV *fh, SV *callback = &PL_sv_undef)
1473 PPCODE:
1474{
1475 int fd = s_fileno_croak (fh, 0);
1476 dREQ;
1477
1478 req->type = EIO_DUP2;
1479 req->int1 = close_fd;
1480 req->sv2 = newSVsv (fh);
1481 req->int2 = fd;
1482
1483 REQ_SEND;
1484}
1485
1486void
1487aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1488 PPCODE:
1489{
1490 int fd = s_fileno_croak (fh, 0);
1491 dREQ;
1492
1493 req->type = EIO_SEEK;
1494 req->sv1 = newSVsv (fh);
1495 req->int1 = fd;
1496 req->offs = SvVAL64 (offset);
1497 req->int2 = whence;
1498
1499 REQ_SEND;
1500}
1501
1502void
1259aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1503aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1260 SV * fh
1261 UV offset
1262 UV length
1263 SV * data
1264 UV dataoffset
1265 SV * callback
1266 ALIAS: 1504 ALIAS:
1267 aio_read = REQ_READ 1505 aio_read = EIO_READ
1268 aio_write = REQ_WRITE 1506 aio_write = EIO_WRITE
1269 PROTOTYPE: $$$$$;$
1270 PPCODE: 1507 PPCODE:
1271{ 1508{
1272 aio_req req;
1273 STRLEN svlen; 1509 STRLEN svlen;
1510 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1274 char *svptr = SvPVbyte (data, svlen); 1511 char *svptr = SvPVbyte (data, svlen);
1275 1512 UV len = SvUV (length);
1276 SvUPGRADE (data, SVt_PV);
1277 SvPOK_on (data);
1278 1513
1279 if (dataoffset < 0) 1514 if (dataoffset < 0)
1280 dataoffset += svlen; 1515 dataoffset += svlen;
1281 1516
1282 if (dataoffset < 0 || dataoffset > svlen) 1517 if (dataoffset < 0 || dataoffset > svlen)
1283 croak ("data offset outside of string"); 1518 croak ("dataoffset outside of data scalar");
1284 1519
1285 if (ix == REQ_WRITE) 1520 if (ix == EIO_WRITE)
1286 { 1521 {
1287 /* write: check length and adjust. */ 1522 /* write: check length and adjust. */
1288 if (length < 0 || length + dataoffset > svlen) 1523 if (!SvOK (length) || len + dataoffset > svlen)
1289 length = svlen - dataoffset; 1524 len = svlen - dataoffset;
1290 } 1525 }
1291 else 1526 else
1292 { 1527 {
1293 /* read: grow scalar as necessary */ 1528 /* read: check type and grow scalar as necessary */
1529 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1294 svptr = SvGROW (data, length + dataoffset); 1530 svptr = sv_grow (data, len + dataoffset + 1);
1531 else if (SvCUR (data) < len + dataoffset)
1532 croak ("length + dataoffset outside of scalar, and cannot grow");
1295 } 1533 }
1296
1297 if (length < 0)
1298 croak ("length must not be negative");
1299 1534
1300 { 1535 {
1301 dREQ; 1536 dREQ;
1302 1537
1303 req->type = ix; 1538 req->type = ix;
1304 req->fh = newSVsv (fh); 1539 req->sv1 = newSVsv (fh);
1305 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1540 req->int1 = fd;
1306 : IoOFP (sv_2io (fh))); 1541 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1307 req->offset = offset; 1542 req->size = len;
1308 req->length = length;
1309 req->data = SvREFCNT_inc (data); 1543 req->sv2 = SvREFCNT_inc (data);
1310 req->dataptr = (char *)svptr + dataoffset; 1544 req->ptr2 = (char *)svptr + dataoffset;
1545 req->stroffset = dataoffset;
1311 1546
1312 if (!SvREADONLY (data)) 1547 if (!SvREADONLY (data))
1313 { 1548 {
1314 SvREADONLY_on (data); 1549 SvREADONLY_on (data);
1315 req->data2ptr = (void *)data; 1550 req->flags |= FLAG_SV2_RO_OFF;
1316 } 1551 }
1317 1552
1318 REQ_SEND; 1553 REQ_SEND;
1319 } 1554 }
1320} 1555}
1321 1556
1322void 1557void
1323aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1558aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1324 SV * out_fh 1559 ALIAS:
1325 SV * in_fh 1560 aio_ioctl = EIO_IOCTL
1326 UV in_offset 1561 aio_fcntl = EIO_FCNTL
1327 UV length
1328 SV * callback
1329 PROTOTYPE: $$$$;$
1330 PPCODE: 1562 PPCODE:
1331{ 1563{
1332 dREQ; 1564 int fd = s_fileno_croak (fh, 0);
1565 char *svptr;
1333 1566
1334 req->type = REQ_SENDFILE; 1567 if (SvPOK (arg) || !SvNIOK (arg))
1335 req->fh = newSVsv (out_fh);
1336 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1337 req->fh2 = newSVsv (in_fh);
1338 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1339 req->offset = in_offset;
1340 req->length = length;
1341
1342 REQ_SEND;
1343}
1344
1345void
1346aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1347 SV * fh
1348 UV offset
1349 IV length
1350 SV * callback
1351 PROTOTYPE: $$$;$
1352 PPCODE:
1353{
1354 dREQ;
1355
1356 req->type = REQ_READAHEAD;
1357 req->fh = newSVsv (fh);
1358 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1359 req->offset = offset;
1360 req->length = length;
1361
1362 REQ_SEND;
1363}
1364
1365void
1366aio_stat (fh_or_path,callback=&PL_sv_undef)
1367 SV * fh_or_path
1368 SV * callback
1369 ALIAS:
1370 aio_stat = REQ_STAT
1371 aio_lstat = REQ_LSTAT
1372 PPCODE:
1373{
1374 dREQ;
1375
1376 New (0, req->statdata, 1, Stat_t);
1377 if (!req->statdata)
1378 { 1568 {
1379 req_free (req); 1569 STRLEN svlen;
1380 croak ("out of memory during aio_req->statdata allocation"); 1570 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1381 } 1571#ifdef IOCPARM_LEN
1572 STRLEN need = IOCPARM_LEN (request);
1573#else
1574 STRLEN need = 256;
1575#endif
1382 1576
1383 if (SvPOK (fh_or_path)) 1577 if (svlen < need)
1384 { 1578 svptr = SvGROW (arg, need);
1385 req->type = ix;
1386 req->data = newSVsv (fh_or_path);
1387 req->dataptr = SvPVbyte_nolen (req->data);
1388 } 1579 }
1389 else 1580 else
1581 svptr = (char *)SvIV (arg);
1582
1390 { 1583 {
1584 dREQ;
1585
1391 req->type = REQ_FSTAT; 1586 req->type = ix;
1392 req->fh = newSVsv (fh_or_path); 1587 req->sv1 = newSVsv (fh);
1393 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1588 req->int1 = fd;
1589 req->int2 = (long)request;
1590 req->sv2 = SvREFCNT_inc (arg);
1591 req->ptr2 = svptr;
1592
1593 REQ_SEND;
1394 } 1594 }
1595}
1596
1597void
1598aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1599 ALIAS:
1600 aio_readlink = EIO_READLINK
1601 aio_realpath = EIO_REALPATH
1602 PPCODE:
1603{
1604 dREQ;
1605
1606 req->type = ix;
1607 req_set_path1 (req, pathname);
1395 1608
1396 REQ_SEND; 1609 REQ_SEND;
1397} 1610}
1398 1611
1399void 1612void
1400aio_unlink (pathname,callback=&PL_sv_undef) 1613aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1401 SV * pathname 1614 PPCODE:
1402 SV * callback 1615{
1616 int ifd = s_fileno_croak (in_fh , 0);
1617 int ofd = s_fileno_croak (out_fh, 1);
1618 dREQ;
1619
1620 req->type = EIO_SENDFILE;
1621 req->sv1 = newSVsv (out_fh);
1622 req->int1 = ofd;
1623 req->sv2 = newSVsv (in_fh);
1624 req->int2 = ifd;
1625 req->offs = in_offset;
1626 req->size = length;
1627
1628 REQ_SEND;
1629}
1630
1631void
1632aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1633 PPCODE:
1634{
1635 int fd = s_fileno_croak (fh, 0);
1636 dREQ;
1637
1638 req->type = EIO_READAHEAD;
1639 req->sv1 = newSVsv (fh);
1640 req->int1 = fd;
1641 req->offs = offset;
1642 req->size = length;
1643
1644 REQ_SEND;
1645}
1646
1647void
1648aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1403 ALIAS: 1649 ALIAS:
1650 aio_stat = EIO_STAT
1651 aio_lstat = EIO_LSTAT
1652 aio_statvfs = EIO_STATVFS
1653 PPCODE:
1654{
1655 dREQ;
1656
1657 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1658
1659 REQ_SEND;
1660}
1661
1662void
1663st_xtime ()
1664 ALIAS:
1665 st_atime = 0x01
1666 st_mtime = 0x02
1667 st_ctime = 0x04
1668 st_btime = 0x08
1669 st_xtime = 0x0f
1670 PPCODE:
1671 EXTEND (SP, 4);
1672 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1673 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1674 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1675 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1676
1677void
1678st_xtimensec ()
1679 ALIAS:
1680 st_atimensec = 0x01
1681 st_mtimensec = 0x02
1682 st_ctimensec = 0x04
1683 st_btimensec = 0x08
1684 st_xtimensec = 0x0f
1685 st_btimesec = 0x10
1686 st_gen = 0x20
1687 PPCODE:
1688 EXTEND (SP, 4);
1689 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1690 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1691 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1692 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1693 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1694 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1695
1696UV
1697major (UV dev)
1698 ALIAS:
1699 minor = 1
1700 CODE:
1701 RETVAL = ix ? minor (dev) : major (dev);
1702 OUTPUT:
1703 RETVAL
1704
1705UV
1706makedev (UV maj, UV min)
1707 CODE:
1708 RETVAL = makedev (maj, min);
1709 OUTPUT:
1710 RETVAL
1711
1712void
1713aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1714 PPCODE:
1715{
1716 dREQ;
1717
1718 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1719 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1720 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1721
1722 REQ_SEND;
1723}
1724
1725void
1726aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1727 PPCODE:
1728{
1729 dREQ;
1730
1731 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1732 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1733
1734 REQ_SEND;
1735}
1736
1737void
1738aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1739 PPCODE:
1740{
1741 dREQ;
1742
1743 req->int2 = mode;
1744 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1745
1746 REQ_SEND;
1747}
1748
1749void
1750aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1751 PPCODE:
1752{
1753 dREQ;
1754
1755 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1756 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1757 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1758
1759 REQ_SEND;
1760}
1761
1762void
1763aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = EIO_READDIR;
1769 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1770
1771 if (flags & EIO_READDIR_DENTS)
1772 req->int1 |= EIO_READDIR_CUSTOM2;
1773
1774 req_set_path1 (req, pathname);
1775
1776 REQ_SEND;
1777}
1778
1779void
1780aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1781 PPCODE:
1782{
1783 dREQ;
1784
1785 req->type = EIO_MKDIR;
1786 req->int2 = mode;
1787 req_set_path1 (req, pathname);
1788
1789 REQ_SEND;
1790}
1791
1792void
1793aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1794 ALIAS:
1404 aio_unlink = REQ_UNLINK 1795 aio_unlink = EIO_UNLINK
1405 aio_rmdir = REQ_RMDIR 1796 aio_rmdir = EIO_RMDIR
1406 aio_readdir = REQ_READDIR 1797 aio_readdir = EIO_READDIR
1407 PPCODE: 1798 PPCODE:
1408{ 1799{
1409 dREQ; 1800 dREQ;
1410 1801
1411 req->type = ix; 1802 req->type = ix;
1412 req->data = newSVsv (pathname); 1803 req_set_path1 (req, pathname);
1413 req->dataptr = SvPVbyte_nolen (req->data); 1804
1414
1415 REQ_SEND; 1805 REQ_SEND;
1416} 1806}
1417 1807
1418void 1808void
1419aio_link (oldpath,newpath,callback=&PL_sv_undef) 1809aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1420 SV * oldpath
1421 SV * newpath
1422 SV * callback
1423 ALIAS: 1810 ALIAS:
1424 aio_link = REQ_LINK 1811 aio_link = EIO_LINK
1425 aio_symlink = REQ_SYMLINK 1812 aio_symlink = EIO_SYMLINK
1426 aio_rename = REQ_RENAME 1813 aio_rename = EIO_RENAME
1427 PPCODE: 1814 PPCODE:
1428{ 1815{
1816 eio_wd wd2 = 0;
1429 dREQ; 1817 dREQ;
1430 1818
1431 req->type = ix; 1819 req->type = ix;
1432 req->fh = newSVsv (oldpath); 1820 req_set_path1 (req, oldpath);
1433 req->data2ptr = SvPVbyte_nolen (req->fh); 1821 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1434 req->data = newSVsv (newpath); 1822 req->int3 = (long)wd2;
1435 req->dataptr = SvPVbyte_nolen (req->data);
1436 1823
1437 REQ_SEND; 1824 REQ_SEND;
1438} 1825}
1439 1826
1440void 1827void
1441aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1828aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1442 SV * pathname
1443 SV * callback
1444 UV mode
1445 UV dev
1446 PPCODE: 1829 PPCODE:
1447{ 1830{
1831 eio_wd wd2 = 0;
1448 dREQ; 1832 dREQ;
1449 1833
1450 req->type = REQ_MKNOD; 1834 req->type = EIO_RENAME;
1451 req->data = newSVsv (pathname); 1835 req_set_path1 (req, oldpath);
1452 req->dataptr = SvPVbyte_nolen (req->data); 1836 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1453 req->mode = (mode_t)mode; 1837 req->int2 = flags;
1454 req->offset = dev; 1838 req->int3 = (long)wd2;
1455 1839
1456 REQ_SEND; 1840 REQ_SEND;
1457} 1841}
1458 1842
1459void 1843void
1460aio_busy (delay,callback=&PL_sv_undef) 1844aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1461 double delay
1462 SV * callback
1463 PPCODE: 1845 PPCODE:
1464{ 1846{
1465 dREQ; 1847 dREQ;
1466 1848
1467 req->type = REQ_BUSY; 1849 req->type = EIO_MKNOD;
1468 req->fd = delay < 0. ? 0 : delay; 1850 req->int2 = (mode_t)mode;
1469 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1851 req->offs = dev;
1470 1852 req_set_path1 (req, pathname);
1853
1471 REQ_SEND; 1854 REQ_SEND;
1472} 1855}
1473 1856
1474void 1857void
1475aio_group (callback=&PL_sv_undef) 1858aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1476 SV * callback 1859 ALIAS:
1477 PROTOTYPE: ;$ 1860 aio_mtouch = EIO_MTOUCH
1861 aio_msync = EIO_MSYNC
1478 PPCODE: 1862 PPCODE:
1479{ 1863{
1864 STRLEN svlen;
1865 char *svptr = SvPVbyte (data, svlen);
1866 UV len = SvUV (length);
1867
1868 if (flags < 0)
1869 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1870
1871 if (offset < 0)
1872 offset += svlen;
1873
1874 if (offset < 0 || offset > svlen)
1875 croak ("offset outside of scalar");
1876
1877 if (!SvOK (length) || len + offset > svlen)
1878 len = svlen - offset;
1879
1880 {
1881 dREQ;
1882
1883 req->type = ix;
1884 req->sv2 = SvREFCNT_inc (data);
1885 req->ptr2 = (char *)svptr + offset;
1886 req->size = len;
1887 req->int1 = flags;
1888
1889 REQ_SEND;
1890 }
1891}
1892
1893void
1894aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1895 PPCODE:
1896{
1897 STRLEN svlen;
1898 char *svptr = SvPVbyte (data, svlen);
1899 UV len = SvUV (length);
1900
1901 if (offset < 0)
1902 offset += svlen;
1903
1904 if (offset < 0 || offset > svlen)
1905 croak ("offset outside of scalar");
1906
1907 if (!SvOK (length) || len + offset > svlen)
1908 len = svlen - offset;
1909
1910 {
1911 dREQ;
1912
1913 req->type = EIO_MLOCK;
1914 req->sv2 = SvREFCNT_inc (data);
1915 req->ptr2 = (char *)svptr + offset;
1916 req->size = len;
1917
1918 REQ_SEND;
1919 }
1920}
1921
1922void
1923aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1924 PPCODE:
1925{
1926 dREQ;
1927
1928 req->type = EIO_MLOCKALL;
1929 req->int1 = flags;
1930
1931 REQ_SEND;
1932}
1933
1934void
1935aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1936 PPCODE:
1937{
1938 int fd = s_fileno_croak (fh, 0);
1480 dREQ; 1939 dREQ;
1481 1940
1482 req->type = REQ_GROUP; 1941 req->type = EIO_CUSTOM;
1483 req_send (req); 1942 req->sv1 = newSVsv (fh);
1943 req->int1 = fd;
1484 1944
1485 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1945 req->feed = fiemap;
1486} 1946#if HAVE_FIEMAP
1947 /* keep our fingers crossed that the next two types are 64 bit */
1948 req->offs = start;
1949 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1950 req->int2 = flags;
1951 req->int3 = SvOK (count) ? SvIV (count) : -1;
1952#endif
1487 1953
1954 REQ_SEND;
1955}
1956
1488void 1957void
1489aio_nop (callback=&PL_sv_undef) 1958aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1490 SV * callback 1959 PPCODE:
1960{
1961 char *svptr = 0;
1962
1963 sv_clear_foreign (data);
1964
1965 if (length) /* known length, directly read into scalar */
1966 {
1967 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1968 svptr = sv_grow (data, length + 1);
1969 else if (SvCUR (data) < length)
1970 croak ("length outside of scalar, and cannot grow");
1971 else
1972 svptr = SvPVbyte_nolen (data);
1973 }
1974
1975 {
1976 dREQ;
1977
1978 req->type = EIO_SLURP;
1979 req_set_path1 (req, pathname);
1980 req->offs = offset;
1981 req->size = length;
1982 req->sv2 = SvREFCNT_inc (data);
1983 req->ptr2 = svptr;
1984
1985 if (!SvREADONLY (data))
1986 {
1987 SvREADONLY_on (data);
1988 req->flags |= FLAG_SV2_RO_OFF;
1989 }
1990
1991 REQ_SEND;
1992 }
1993}
1994
1995void
1996aio_busy (double delay, SV *callback = &PL_sv_undef)
1491 PPCODE: 1997 PPCODE:
1492{ 1998{
1493 dREQ; 1999 dREQ;
1494 2000
1495 req->type = REQ_NOP; 2001 req->type = EIO_BUSY;
2002 req->nv1 = delay < 0. ? 0. : delay;
1496 2003
1497 REQ_SEND; 2004 REQ_SEND;
1498} 2005}
1499 2006
2007void
2008aio_group (SV *callback = &PL_sv_undef)
2009 PPCODE:
2010{
2011 dREQ;
2012
2013 req->type = EIO_GROUP;
2014
2015 PUTBACK;
2016 req_submit (req);
2017 SPAGAIN;
2018
2019 XPUSHs (req_sv (req, aio_grp_stash));
2020}
2021
2022void
2023aio_nop (SV *callback = &PL_sv_undef)
2024 ALIAS:
2025 aio_nop = EIO_NOP
2026 aio_sync = EIO_SYNC
2027 PPCODE:
2028{
2029 dREQ;
2030
2031 req->type = ix;
2032
2033 REQ_SEND;
2034}
2035
1500int 2036int
1501aioreq_pri (int pri = 0) 2037aioreq_pri (int pri = NO_INIT)
1502 PROTOTYPE: ;$
1503 CODE: 2038 CODE:
1504 RETVAL = next_pri - PRI_BIAS; 2039 RETVAL = next_pri;
1505 if (items > 0) 2040 if (items > 0)
1506 { 2041 {
1507 if (pri < PRI_MIN) pri = PRI_MIN; 2042 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1508 if (pri > PRI_MAX) pri = PRI_MAX; 2043 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1509 next_pri = pri + PRI_BIAS; 2044 next_pri = pri;
1510 } 2045 }
1511 OUTPUT: 2046 OUTPUT:
1512 RETVAL 2047 RETVAL
1513 2048
1514void 2049void
1515aioreq_nice (int nice = 0) 2050aioreq_nice (int nice = 0)
1516 CODE: 2051 CODE:
1517 nice = next_pri - nice; 2052 nice = next_pri - nice;
1518 if (nice < PRI_MIN) nice = PRI_MIN; 2053 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1519 if (nice > PRI_MAX) nice = PRI_MAX; 2054 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1520 next_pri = nice + PRI_BIAS; 2055 next_pri = nice;
1521 2056
1522void 2057void
1523flush () 2058flush ()
2059 CODE:
2060 while (eio_nreqs ())
2061 {
2062 poll_wait ();
2063 poll_cb ();
2064 }
2065
2066int
2067poll ()
2068 CODE:
2069 poll_wait ();
2070 RETVAL = poll_cb ();
2071 OUTPUT:
2072 RETVAL
2073
2074int
2075poll_fileno ()
2076 CODE:
2077 RETVAL = s_epipe_fd (&respipe);
2078 OUTPUT:
2079 RETVAL
2080
2081int
2082poll_cb (...)
1524 PROTOTYPE: 2083 PROTOTYPE:
1525 CODE: 2084 CODE:
1526 while (nreqs)
1527 {
1528 poll_wait ();
1529 poll_cb (0); 2085 RETVAL = poll_cb ();
1530 }
1531
1532void
1533poll()
1534 PROTOTYPE:
1535 CODE:
1536 if (nreqs)
1537 {
1538 poll_wait ();
1539 poll_cb (0);
1540 }
1541
1542int
1543poll_fileno()
1544 PROTOTYPE:
1545 CODE:
1546 RETVAL = respipe [0];
1547 OUTPUT: 2086 OUTPUT:
1548 RETVAL 2087 RETVAL
1549 2088
2089void
2090poll_wait ()
2091 CODE:
2092 poll_wait ();
2093
1550int 2094int
1551poll_cb(...) 2095nreqs ()
1552 PROTOTYPE:
1553 CODE: 2096 CODE:
1554 RETVAL = poll_cb (0); 2097 RETVAL = eio_nreqs ();
1555 OUTPUT: 2098 OUTPUT:
1556 RETVAL 2099 RETVAL
1557 2100
1558int 2101int
1559poll_some(int max = 0) 2102nready ()
1560 PROTOTYPE: $
1561 CODE: 2103 CODE:
1562 RETVAL = poll_cb (max); 2104 RETVAL = eio_nready ();
1563 OUTPUT: 2105 OUTPUT:
1564 RETVAL 2106 RETVAL
1565 2107
1566void 2108int
1567poll_wait() 2109npending ()
1568 PROTOTYPE:
1569 CODE: 2110 CODE:
1570 if (nreqs) 2111 RETVAL = eio_npending ();
1571 poll_wait ();
1572
1573int
1574nreqs()
1575 PROTOTYPE:
1576 CODE:
1577 RETVAL = nreqs;
1578 OUTPUT: 2112 OUTPUT:
1579 RETVAL 2113 RETVAL
1580 2114
1581int 2115int
1582nready() 2116nthreads ()
1583 PROTOTYPE:
1584 CODE: 2117 CODE:
1585 RETVAL = get_nready (); 2118 RETVAL = eio_nthreads ();
1586 OUTPUT: 2119 OUTPUT:
1587 RETVAL 2120 RETVAL
1588 2121
1589int 2122int
1590npending() 2123fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1591 PROTOTYPE: 2124 CODE:
2125 RETVAL = posix_fadvise (fh, offset, length, advice);
2126 OUTPUT:
2127 RETVAL
2128
2129IV
2130sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2131 CODE:
2132 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2133 OUTPUT:
2134 RETVAL
2135
2136void
2137mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2138 PPCODE:
2139 sv_clear_foreign (scalar);
2140{
2141 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2142 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2143 if (addr == (void *)-1)
2144 XSRETURN_NO;
2145
2146 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2147
2148 if (!(prot & PROT_WRITE))
2149 SvREADONLY_on (scalar);
2150
2151 XSRETURN_YES;
2152}
2153
2154void
2155munmap (SV *scalar)
1592 CODE: 2156 CODE:
1593 RETVAL = get_npending (); 2157 sv_clear_foreign (scalar);
2158
2159SV *
2160mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2161 CODE:
2162{
2163 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2164 void *new;
2165
2166 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2167 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2168
2169 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2170
2171 RETVAL = &PL_sv_no;
2172
2173 if (new != (void *)-1)
2174 {
2175 RETVAL = new == (void *)mg->mg_ptr
2176 ? newSVpvn ("0 but true", 10)
2177 : &PL_sv_yes;
2178
2179 mg->mg_ptr = (char *)new;
2180 mg->mg_obj = (SV *)new_length;
2181
2182 SvPVX (scalar) = mg->mg_ptr;
2183 SvCUR_set (scalar, new_length);
2184 }
2185}
1594 OUTPUT: 2186 OUTPUT:
1595 RETVAL 2187 RETVAL
2188
2189int
2190madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2191 ALIAS:
2192 mprotect = 1
2193 CODE:
2194{
2195 STRLEN svlen;
2196 void *addr = SvPVbyte (scalar, svlen);
2197 STRLEN len = SvUV (length);
2198
2199 if (offset < 0)
2200 offset += svlen;
2201
2202 if (offset < 0 || offset > svlen)
2203 croak ("offset outside of scalar");
2204
2205 if (!SvOK (length) || len + offset > svlen)
2206 len = svlen - offset;
2207
2208 addr = (void *)(((intptr_t)addr) + offset);
2209 eio_page_align (&addr, &len);
2210
2211 switch (ix)
2212 {
2213 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2214 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2215 }
2216}
2217 OUTPUT:
2218 RETVAL
2219
2220int
2221munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2222 CODE:
2223{
2224 STRLEN svlen;
2225 void *addr = SvPVbyte (scalar, svlen);
2226 size_t len = SvUV (length);
2227
2228 if (offset < 0)
2229 offset += svlen;
2230
2231 if (offset < 0 || offset > svlen)
2232 croak ("offset outside of scalar");
2233
2234 if (!SvOK (length) || len + offset > svlen)
2235 len = svlen - offset;
2236
2237 addr = (void *)(((intptr_t)addr) + offset);
2238 eio_page_align (&addr, &len);
2239#if _POSIX_MEMLOCK_RANGE
2240 RETVAL = munlock (addr, len);
2241#else
2242 RETVAL = EIO_ENOSYS ();
2243#endif
2244}
2245 OUTPUT:
2246 RETVAL
2247
2248int
2249munlockall ()
2250 CODE:
2251#if _POSIX_MEMLOCK
2252 munlockall ();
2253#else
2254 RETVAL = EIO_ENOSYS ();
2255#endif
2256 OUTPUT:
2257 RETVAL
2258
2259int
2260splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2261 CODE:
2262{
2263#if HAVE_LINUX_SPLICE
2264 loff_t off_in_, off_out_;
2265 RETVAL = splice (
2266 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2267 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2268 length, flags
2269 );
2270#else
2271 RETVAL = EIO_ENOSYS ();
2272#endif
2273}
2274 OUTPUT:
2275 RETVAL
2276
2277int
2278tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2279 CODE:
2280#if HAVE_LINUX_SPLICE
2281 RETVAL = tee (rfh, wfh, length, flags);
2282#else
2283 RETVAL = EIO_ENOSYS ();
2284#endif
2285 OUTPUT:
2286 RETVAL
2287
2288int
2289pipesize (aio_rfd rfh, int new_size = -1)
2290 PROTOTYPE: $;$
2291 CODE:
2292#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2293 if (new_size >= 0)
2294 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2295 else
2296 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2297#else
2298 errno = ENOSYS;
2299 RETVAL = -1;
2300#endif
2301 OUTPUT:
2302 RETVAL
2303
2304void
2305pipe2 (int flags = 0)
2306 PROTOTYPE: ;$
2307 PPCODE:
2308{
2309 int fd[2];
2310 int res;
2311
2312 if (flags)
2313#if HAVE_PIPE2
2314 res = pipe2 (fd, flags);
2315#else
2316 res = (errno = ENOSYS, -1);
2317#endif
2318 else
2319 res = pipe (fd);
2320
2321 if (!res)
2322 {
2323 EXTEND (SP, 2);
2324 PUSHs (newmortalFH (fd[0], O_RDONLY));
2325 PUSHs (newmortalFH (fd[1], O_WRONLY));
2326 }
2327}
2328
2329void
2330eventfd (unsigned int initval = 0, int flags = 0)
2331 PPCODE:
2332{
2333 int fd;
2334#if HAVE_EVENTFD
2335 fd = eventfd (initval, flags);
2336#else
2337 fd = (errno = ENOSYS, -1);
2338#endif
2339
2340 XPUSHs (newmortalFH (fd, O_RDWR));
2341}
2342
2343void
2344timerfd_create (int clockid, int flags = 0)
2345 PPCODE:
2346{
2347 int fd;
2348#if HAVE_TIMERFD
2349 fd = timerfd_create (clockid, flags);
2350#else
2351 fd = (errno = ENOSYS, -1);
2352#endif
2353
2354 XPUSHs (newmortalFH (fd, O_RDWR));
2355}
2356
2357void
2358timerfd_settime (SV *fh, int flags, NV interval, NV value)
2359 PPCODE:
2360{
2361 int fd = s_fileno_croak (fh, 0);
2362#if HAVE_TIMERFD
2363 int res;
2364 struct itimerspec its, ots;
2365
2366 ts_set (&its.it_interval, interval);
2367 ts_set (&its.it_value , value);
2368 res = timerfd_settime (fd, flags, &its, &ots);
2369
2370 if (!res)
2371 {
2372 EXTEND (SP, 2);
2373 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2374 PUSHs (newSVnv (ts_get (&ots.it_value)));
2375 }
2376#else
2377 errno = ENOSYS;
2378#endif
2379}
2380
2381void
2382timerfd_gettime (SV *fh)
2383 PPCODE:
2384{
2385 int fd = s_fileno_croak (fh, 0);
2386#if HAVE_TIMERFD
2387 int res;
2388 struct itimerspec ots;
2389 res = timerfd_gettime (fd, &ots);
2390
2391 if (!res)
2392 {
2393 EXTEND (SP, 2);
2394 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2395 PUSHs (newSVnv (ts_get (&ots.it_value)));
2396 }
2397#else
2398 errno = ENOSYS;
2399#endif
2400}
2401
2402UV
2403get_fdlimit ()
2404 CODE:
2405#if HAVE_RLIMITS
2406 struct rlimit rl;
2407 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2408 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2409#endif
2410 XSRETURN_UNDEF;
2411 OUTPUT:
2412 RETVAL
2413
2414void
2415min_fdlimit (UV limit = 0x7fffffffU)
2416 CODE:
2417{
2418#if HAVE_RLIMITS
2419 struct rlimit rl;
2420 rlim_t orig_rlim_max;
2421 UV bit;
2422
2423 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2424 goto fail;
2425
2426 if (rl.rlim_cur == RLIM_INFINITY)
2427 XSRETURN_YES;
2428
2429 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2430
2431 if (rl.rlim_cur < limit)
2432 {
2433 rl.rlim_cur = limit;
2434
2435 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2436 rl.rlim_max = rl.rlim_cur;
2437 }
2438
2439 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2440 XSRETURN_YES;
2441
2442 if (errno == EPERM)
2443 {
2444 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2445 /* our limit overflows a system-wide limit */
2446 /* try an adaptive algorithm, but do not lower the hardlimit */
2447 rl.rlim_max = 0;
2448 for (bit = 0x40000000U; bit; bit >>= 1)
2449 {
2450 rl.rlim_max |= bit;
2451 rl.rlim_cur = rl.rlim_max;
2452
2453 /* nevr decrease the hard limit */
2454 if (rl.rlim_max < orig_rlim_max)
2455 break;
2456
2457 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2458 rl.rlim_max &= ~bit; /* too high, remove bit again */
2459 }
2460
2461 /* now, raise the soft limit to the max permitted */
2462 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2463 {
2464 rl.rlim_cur = rl.rlim_max;
2465 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2466 errno = EPERM;
2467 }
2468 }
2469#endif
2470 fail:
2471 XSRETURN_UNDEF;
2472}
2473
2474void _on_next_submit (SV *cb)
2475 CODE:
2476 SvREFCNT_dec (on_next_submit);
2477 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1596 2478
1597PROTOTYPES: DISABLE 2479PROTOTYPES: DISABLE
2480
2481MODULE = IO::AIO PACKAGE = IO::AIO::WD
2482
2483BOOT:
2484{
2485 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2486 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2487}
2488
2489void
2490DESTROY (SV *self)
2491 CODE:
2492{
2493 aio_wd wd = SvAIO_WD (self);
2494#if HAVE_AT
2495 {
2496 SV *callback = &PL_sv_undef;
2497 dREQ; /* clobbers next_pri :/ */
2498 next_pri = req->pri; /* restore next_pri */
2499 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2500 req->type = EIO_WD_CLOSE;
2501 req->wd = wd;
2502 REQ_SEND;
2503 }
2504#else
2505 eio_wd_close_sync (wd);
2506#endif
2507}
1598 2508
1599MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2509MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1600 2510
1601void 2511void
1602cancel (aio_req_ornot req) 2512cancel (aio_req_ornot req)
1603 CODE: 2513 CODE:
1604 req_cancel (req); 2514 eio_cancel (req);
1605 2515
1606void 2516void
1607cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2517cb (aio_req_ornot req, SV *callback = NO_INIT)
1608 CODE: 2518 PPCODE:
2519{
2520 if (GIMME_V != G_VOID)
2521 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2522
2523 if (items > 1)
2524 {
2525 SV *cb_cv = get_cb (callback);
2526
1609 SvREFCNT_dec (req->callback); 2527 SvREFCNT_dec (req->callback);
1610 req->callback = newSVsv (callback); 2528 req->callback = SvREFCNT_inc (cb_cv);
2529 }
2530}
1611 2531
1612MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2532MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1613 2533
1614void 2534void
1615add (aio_req grp, ...) 2535add (aio_req grp, ...)
1616 PPCODE: 2536 PPCODE:
1617{ 2537{
1618 int i; 2538 int i;
1619 aio_req req;
1620 2539
1621 if (grp->fd == 2) 2540 if (grp->int1 == 2)
1622 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2541 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1623 2542
1624 for (i = 1; i < items; ++i ) 2543 for (i = 1; i < items; ++i )
1625 { 2544 {
2545 aio_req req;
2546
1626 if (GIMME_V != G_VOID) 2547 if (GIMME_V != G_VOID)
1627 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2548 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1628 2549
1629 req = SvAIO_REQ (ST (i)); 2550 req = SvAIO_REQ (ST (i));
1630 2551
1631 if (req) 2552 if (req)
1632 { 2553 eio_grp_add (grp, req);
1633 ++grp->length;
1634 req->grp = grp;
1635
1636 req->grp_prev = 0;
1637 req->grp_next = grp->grp_first;
1638
1639 if (grp->grp_first)
1640 grp->grp_first->grp_prev = req;
1641
1642 grp->grp_first = req;
1643 }
1644 } 2554 }
1645} 2555}
1646 2556
1647void 2557void
1648cancel_subs (aio_req_ornot req) 2558cancel_subs (aio_req_ornot req)
… …
1657 AV *av; 2567 AV *av;
1658 2568
1659 grp->errorno = errno; 2569 grp->errorno = errno;
1660 2570
1661 av = newAV (); 2571 av = newAV ();
2572 av_extend (av, items - 1);
1662 2573
1663 for (i = 1; i < items; ++i ) 2574 for (i = 1; i < items; ++i )
1664 av_push (av, newSVsv (ST (i))); 2575 av_push (av, newSVsv (ST (i)));
1665 2576
1666 SvREFCNT_dec (grp->data); 2577 SvREFCNT_dec (grp->sv1);
1667 grp->data = (SV *)av; 2578 grp->sv1 = (SV *)av;
1668} 2579}
1669 2580
1670void 2581void
1671errno (aio_req grp, int errorno = errno) 2582errno (aio_req grp, int errorno = errno)
1672 CODE: 2583 CODE:
1673 grp->errorno = errorno; 2584 grp->errorno = errorno;
1674 2585
1675void 2586void
1676limit (aio_req grp, int limit) 2587limit (aio_req grp, int limit)
1677 CODE: 2588 CODE:
1678 grp->fd2 = limit; 2589 eio_grp_limit (grp, limit);
1679 aio_grp_feed (grp);
1680 2590
1681void 2591void
1682feed (aio_req grp, SV *callback=&PL_sv_undef) 2592feed (aio_req grp, SV *callback = &PL_sv_undef)
1683 CODE: 2593 CODE:
1684{ 2594{
1685 SvREFCNT_dec (grp->fh2); 2595 SvREFCNT_dec (grp->sv2);
1686 grp->fh2 = newSVsv (callback); 2596 grp->sv2 = newSVsv (callback);
2597 grp->feed = aio_grp_feed;
1687 2598
1688 if (grp->fd2 <= 0) 2599 if (grp->int2 <= 0)
1689 grp->fd2 = 2; 2600 grp->int2 = 2;
1690 2601
1691 aio_grp_feed (grp); 2602 eio_grp_limit (grp, grp->int2);
1692} 2603}
1693 2604

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