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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.88 by root, Mon Oct 30 23:43:17 2006 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 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>
26#include <sys/stat.h> 17#include <sys/stat.h>
27#include <limits.h> 18#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 19#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 20#include <sched.h>
32 21
33#if HAVE_SENDFILE 22#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 23# include <sys/mman.h>
39# elif __hpux 24#endif
25
26/* the incompetent fool that created musl keeps __linux__, refuses
27 * to implement any linux standard apis, and also has no way to test
28 * for his broken iplementation. don't complain to me if this fails
29 * for you.
30 */
31#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
32# include <linux/fs.h>
33# ifdef FS_IOC_FIEMAP
34# include <linux/types.h>
35# include <linux/fiemap.h>
36# define HAVE_FIEMAP 1
37# endif
38#endif
39
40/* perl namespace pollution */
41#undef VERSION
42
43/* perl stupidly overrides readdir and maybe others */
44/* with thread-unsafe versions, imagine that :( */
45#undef readdir
46#undef opendir
47#undef closedir
48
49#ifdef _WIN32
50
51 // perl overrides all those nice libc functions
52
53 #undef malloc
54 #undef free
55 #undef open
56 #undef read
57 #undef write
58 #undef send
59 #undef recv
60 #undef stat
61 #undef lstat
62 #undef fstat
63 #undef truncate
64 #undef ftruncate
65 #undef open
66 #undef link
67 #undef close
68 #undef unlink
69 #undef mkdir
70 #undef rmdir
71 #undef rename
72 #undef lseek
73 #undef opendir
74 #undef readdir
75 #undef closedir
76 #undef chmod
77 #undef fchmod
78 #undef dup
79 #undef dup2
80 #undef abort
81 #undef pipe
82
83 #define EIO_STRUCT_STAT struct _stati64
84 #define EIO_STRUCT_STATI64
85
86#else
87
40# include <sys/socket.h> 88 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 89 #include <sys/select.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "libeio/config.h"
112
113#include "schmorp.h"
114
115#if HAVE_EVENTFD
116# include <sys/eventfd.h>
117#endif
118
119#if HAVE_TIMERFD
120# include <sys/timerfd.h>
121#endif
122
123#if HAVE_RLIMITS
124 #include <sys/time.h>
125 #include <sys/resource.h>
126#endif
127
128typedef SV SV8; /* byte-sv, used for argument-checking */
129typedef int aio_rfd; /* read file desriptor */
130typedef int aio_wfd; /* write file descriptor */
131
132static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
133
134#define EIO_REQ_MEMBERS \
135 SV *callback; \
136 SV *sv1, *sv2; \
137 SV *sv3, *sv4; \
138 STRLEN stroffset; \
139 SV *self;
140
141#define EIO_NO_WRAPPERS 1
142
143#include "libeio/eio.h"
144
145static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp);
148#define EIO_DESTROY(req) req_destroy (req)
149
150#include "libeio/eio.c"
151
152#if !HAVE_POSIX_FADVISE
153# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#if !HAVE_POSIX_MADVISE
157# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
158#endif
159
160#ifndef MAP_ANONYMOUS
161# ifdef MAP_ANON
162# define MAP_ANONYMOUS MAP_ANON
43# else 163# else
44# error sendfile support requested but not available 164# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 165# endif
46#endif 166#endif
47 167
48/* number of seconds after which idle threads exit */ 168/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 169/* also provides const_iv_ and const_niv_ macros for them */
170#include "def0.h"
50 171
51/* used for struct dirent, AIX doesn't provide it */ 172#ifndef makedev
52#ifndef NAME_MAX 173# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 174#endif
175#ifndef major
176# define major(dev) ((dev) >> 8)
79#endif 177#endif
178#ifndef minor
179# define minor(dev) ((dev) & 0xff)
180#endif
80 181
81/* buffer size for various temporary buffers */ 182#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 183# define PAGESIZE sysconf (_SC_PAGESIZE)
184#endif
83 185
84#define dBUF \ 186/*****************************************************************************/
85 char *aio_buf; \ 187
86 LOCK (wrklock); \ 188#if !_POSIX_MAPPED_FILES
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 189# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
88 UNLOCK (wrklock); \ 190# define munmap(addr,length) EIO_ENOSYS ()
89 if (!aio_buf) \ 191#endif
192
193#if !_POSIX_MEMORY_PROTECTION
194# define mprotect(addr,len,prot) EIO_ENOSYS ()
195#endif
196
197#if !MREMAP_MAYMOVE
198# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
199#endif
200
201#define FOREIGN_MAGIC PERL_MAGIC_ext
202
203static int ecb_cold
204mmap_free (pTHX_ SV *sv, MAGIC *mg)
205{
206 int old_errno = errno;
207 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
208 errno = old_errno;
209
210 mg->mg_obj = 0; /* just in case */
211
212 SvREADONLY_off (sv);
213
214 if (SvPVX (sv) != mg->mg_ptr)
215 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
216
217 SvCUR_set (sv, 0);
218 SvPVX (sv) = 0;
219 SvOK_off (sv);
220
90 return -1; 221 return 0;
222}
91 223
92enum { 224static MGVTBL mmap_vtbl = {
93 REQ_QUIT, 225 0, 0, 0, 0, mmap_free
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104}; 226};
105 227
106#define AIO_REQ_KLASS "IO::AIO::REQ" 228static int ecb_cold
107#define AIO_GRP_KLASS "IO::AIO::GRP" 229sysfree_free (pTHX_ SV *sv, MAGIC *mg)
108
109typedef struct aio_cb
110{ 230{
111 struct aio_cb *volatile next; 231 free (mg->mg_ptr);
232 mg->mg_obj = 0; /* just in case */
112 233
113 SV *callback, *fh; 234 SvREADONLY_off (sv);
114 SV *sv1, *sv2;
115 void *ptr1, *ptr2;
116 off_t offs;
117 size_t size;
118 ssize_t result;
119 235
120 STRLEN stroffset; 236 if (SvPVX (sv) != mg->mg_ptr)
121 int type; 237 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
122 int int1, int2;
123 int errorno;
124 mode_t mode; /* open */
125 238
126 unsigned char flags; 239 SvCUR_set (sv, 0);
127 unsigned char pri; 240 SvPVX (sv) = 0;
241 SvOK_off (sv);
128 242
129 SV *self; /* the perl counterpart of this request, if any */ 243 return 0;
130 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 244}
131} aio_cb;
132 245
133enum { 246static MGVTBL sysfree_vtbl = {
134 FLAG_CANCELLED = 0x01, 247 0, 0, 0, 0, sysfree_free
135 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
136 FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */
137}; 248};
138 249
139typedef aio_cb *aio_req; 250/*****************************************************************************/
140typedef aio_cb *aio_req_ornot;
141 251
142enum { 252/* helper: set scalar to foreign ptr with custom free */
143 PRI_MIN = -4, 253static void
144 PRI_MAX = 4, 254sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
145
146 DEFAULT_PRI = 0,
147 PRI_BIAS = -PRI_MIN,
148 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
149};
150
151#define AIO_TICKS ((1000000 + 1023) >> 10)
152
153static unsigned int max_poll_time = 0;
154static unsigned int max_poll_reqs = 0;
155
156/* calculcate time difference in ~1/AIO_TICKS of a second */
157static int tvdiff (struct timeval *tv1, struct timeval *tv2)
158{ 255{
159 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 256 sv_force_normal (sv);
160 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
161}
162 257
163static int next_pri = DEFAULT_PRI + PRI_BIAS; 258 /* we store the length in mg_obj, as namlen is I32 :/ */
259 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
260 ->mg_obj = (SV *)length;
164 261
165static unsigned int started, idle, wanted; 262 SvUPGRADE (sv, SVt_PV); /* nop... */
166 263
167#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 264 if (SvLEN (sv))
168# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 265 Safefree (SvPVX (sv));
169#else
170# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171#endif
172 266
173#define LOCK(mutex) pthread_mutex_lock (&(mutex)) 267 SvPVX (sv) = (char *)addr;
174#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 268 SvCUR_set (sv, length);
269 SvLEN_set (sv, 0);
270 SvPOK_only (sv);
271}
175 272
176/* worker threads management */ 273static void
177static pthread_mutex_t wrklock = AIO_MUTEX_INIT; 274sv_clear_foreign (SV *sv)
178
179typedef struct worker {
180 /* locked by wrklock */
181 struct worker *prev, *next;
182
183 pthread_t tid;
184
185 /* locked by reslock, reqlock or wrklock */
186 aio_req req; /* currently processed request */
187 void *dbuf;
188 DIR *dirp;
189} worker;
190
191static worker wrk_first = { &wrk_first, &wrk_first, 0 };
192
193static void worker_clear (worker *wrk)
194{ 275{
195 if (wrk->dirp) 276 /* todo: iterate over magic and only free ours, but of course */
277 /* the perl5porters will call that (correct) behaviour buggy */
278 sv_unmagic (sv, FOREIGN_MAGIC);
279}
280
281/*****************************************************************************/
282
283static void
284fiemap (eio_req *req)
285{
286 req->result = -1;
287
288#if HAVE_FIEMAP
289 /* assume some c99 */
290 struct fiemap *fiemap = 0;
291 size_t end_offset;
292 int count = req->int3;
293
294 req->flags |= EIO_FLAG_PTR1_FREE;
295
296 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
297 /* increase in 3.5kb steps */
298 if (count < 0)
299 count = 8;
300
301 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
302 errno = ENOMEM;
303 if (!fiemap)
304 return;
305
306 req->ptr1 = fiemap;
307
308 fiemap->fm_start = req->offs;
309 fiemap->fm_length = req->size;
310 fiemap->fm_flags = req->int2;
311 fiemap->fm_extent_count = count;
312
313 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
314 return;
315
316 if (req->int3 >= 0 /* not autosizing */
317 || !fiemap->fm_mapped_extents /* no more extents */
318 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
319 goto done;
320
321 /* else we have to loop -
322 * it would be tempting (actually I tried that first) to just query the
323 * number of extents needed, but linux often feels like not returning all
324 * extents, without telling us it left any out. this complicates
325 * this quite a bit.
326 */
327
328 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
329
330 for (;;)
196 { 331 {
197 closedir (wrk->dirp); 332 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
198 wrk->dirp = 0; 333 char scratch[3072];
199 } 334 struct fiemap *incmap = (struct fiemap *)scratch;
200 335
201 if (wrk->dbuf) 336 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
202 { 337 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
203 free (wrk->dbuf); 338 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
204 wrk->dbuf = 0; 339 incmap->fm_flags = fiemap->fm_flags;
205 } 340 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
206}
207 341
208static void worker_free (worker *wrk) 342 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
209{
210 wrk->next->prev = wrk->prev;
211 wrk->prev->next = wrk->next;
212
213 free (wrk);
214}
215
216static volatile unsigned int nreqs, nready, npending;
217static volatile unsigned int max_idle = 4;
218static volatile unsigned int max_outstanding = 0xffffffff;
219static int respipe [2];
220
221static pthread_mutex_t reslock = AIO_MUTEX_INIT;
222static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
223static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
224
225#if WORDACCESS_UNSAFE
226
227static unsigned int get_nready ()
228{
229 unsigned int retval;
230
231 LOCK (reqlock);
232 retval = nready;
233 UNLOCK (reqlock);
234
235 return retval;
236}
237
238static unsigned int get_npending ()
239{
240 unsigned int retval;
241
242 LOCK (reslock);
243 retval = npending;
244 UNLOCK (reslock);
245
246 return retval;
247}
248
249static unsigned int get_nthreads ()
250{
251 unsigned int retval;
252
253 LOCK (wrklock);
254 retval = started;
255 UNLOCK (wrklock);
256
257 return retval;
258}
259
260#else
261
262# define get_nready() nready
263# define get_npending() npending
264# define get_nthreads() started
265
266#endif
267
268/*
269 * a somewhat faster data structure might be nice, but
270 * with 8 priorities this actually needs <20 insns
271 * per shift, the most expensive operation.
272 */
273typedef struct {
274 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
275 int size;
276} reqq;
277
278static reqq req_queue;
279static reqq res_queue;
280
281int reqq_push (reqq *q, aio_req req)
282{
283 int pri = req->pri;
284 req->next = 0;
285
286 if (q->qe[pri])
287 {
288 q->qe[pri]->next = req;
289 q->qe[pri] = req;
290 }
291 else
292 q->qe[pri] = q->qs[pri] = req;
293
294 return q->size++;
295}
296
297aio_req reqq_shift (reqq *q)
298{
299 int pri;
300
301 if (!q->size)
302 return 0; 343 return;
303 344
304 --q->size; 345 if (!incmap->fm_mapped_extents)
346 goto done;
305 347
306 for (pri = NUM_PRI; pri--; ) 348 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
307 { 349 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
308 aio_req req = q->qs[pri]; 350 errno = ENOMEM;
309
310 if (req) 351 if (!fiemap)
352 return;
353
354 req->ptr1 = fiemap;
355
356 for (count = 0; count < incmap->fm_mapped_extents; ++count)
311 { 357 {
312 if (!(q->qs[pri] = req->next)) 358 struct fiemap_extent *e = incmap->fm_extents + count;
313 q->qe[pri] = 0;
314 359
315 return req; 360 if (e->fe_logical + e->fe_length >= end_offset)
361 goto done;
362
363 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
364
365 if (e->fe_flags & FIEMAP_EXTENT_LAST)
366 goto done;
367
316 } 368 }
317 } 369 }
318 370
319 abort (); 371done:
320} 372 req->result = 0;
321 373
322static int poll_cb (); 374#else
323static void req_invoke (aio_req req); 375 errno = ENOSYS;
376#endif
377}
378
379/*****************************************************************************/
380
381enum {
382 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
383};
384
385typedef eio_req *aio_req;
386typedef eio_req *aio_req_ornot;
387typedef eio_wd aio_wd;
388
389static SV *on_next_submit;
390static int next_pri = EIO_PRI_DEFAULT;
391static int max_outstanding;
392
393static s_epipe respipe;
394
324static void req_free (aio_req req); 395static void req_destroy (aio_req req);
325static void req_cancel (aio_req req); 396static void req_cancel (aio_req req);
326 397
398static void
399want_poll (void)
400{
401 /* write a dummy byte to the pipe so fh becomes ready */
402 s_epipe_signal (&respipe);
403}
404
405static void
406done_poll (void)
407{
408 /* read any signals sent by the worker threads */
409 s_epipe_drain (&respipe);
410}
411
327/* must be called at most once */ 412/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 413static SV *
414req_sv (aio_req req, HV *stash)
329{ 415{
330 if (!req->self) 416 if (!req->self)
331 { 417 {
332 req->self = (SV *)newHV (); 418 req->self = (SV *)newHV ();
333 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 419 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
334 } 420 }
335 421
336 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 422 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
337} 423}
338 424
339static aio_req SvAIO_REQ (SV *sv) 425static SV *
426newSVaio_wd (aio_wd wd)
427{
428 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
429}
430
431static aio_req
432SvAIO_REQ (SV *sv)
340{ 433{
341 MAGIC *mg; 434 MAGIC *mg;
342 435
343 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 436 if (!SvROK (sv)
437 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
438 || (SvSTASH (SvRV (sv)) != aio_grp_stash
439 && SvSTASH (SvRV (sv)) != aio_req_stash
440 && !sv_derived_from (sv, "IO::AIO::REQ")))
344 croak ("object of class " AIO_REQ_KLASS " expected"); 441 croak ("object of class IO::AIO::REQ expected");
345 442
346 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 443 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
347 444
348 return mg ? (aio_req)mg->mg_ptr : 0; 445 return mg ? (aio_req)mg->mg_ptr : 0;
349} 446}
350 447
448static aio_wd
449SvAIO_WD (SV *sv)
450{
451 if (!SvROK (sv)
452 || SvTYPE (SvRV (sv)) != SVt_PVMG
453 || SvSTASH (SvRV (sv)) != aio_wd_stash)
454 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
455
456 return (aio_wd)(long)SvIVX (SvRV (sv));
457}
458
459static SV *
460newmortalFH (int fd, int flags)
461{
462 if (fd < 0)
463 return &PL_sv_undef;
464
465 GV *gv = (GV *)sv_newmortal ();
466 char sym[64];
467 int symlen;
468
469 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
470 gv_init (gv, aio_stash, sym, symlen, 0);
471
472 symlen = snprintf (
473 sym,
474 sizeof (sym),
475 "%s&=%d",
476 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
477 fd
478 );
479
480 return do_open (gv, sym, symlen, 0, 0, 0, 0)
481 ? (SV *)gv : &PL_sv_undef;
482}
483
484static void
351static void aio_grp_feed (aio_req grp) 485aio_grp_feed (aio_req grp)
352{ 486{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 487 if (grp->sv2 && SvOK (grp->sv2))
354 { 488 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 489 dSP;
360 490
361 ENTER; 491 ENTER;
362 SAVETMPS; 492 SAVETMPS;
363 PUSHMARK (SP); 493 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 494 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 495 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 496 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 497 SPAGAIN;
368 FREETMPS; 498 FREETMPS;
369 LEAVE; 499 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 500 }
380} 501}
381 502
382static void aio_grp_dec (aio_req grp) 503static void
504req_submit (eio_req *req)
383{ 505{
384 --grp->size; 506 eio_submit (req);
385 507
386 /* call feeder, if applicable */ 508 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 509 {
392 req_invoke (grp); 510 dSP;
393 req_free (grp); 511 SV *cb = sv_2mortal (on_next_submit);
512
513 on_next_submit = 0;
514
515 PUSHMARK (SP);
516 PUTBACK;
517 call_sv (cb, G_DISCARD | G_EVAL);
394 } 518 }
395} 519}
396 520
521static int
397static void req_invoke (aio_req req) 522req_invoke (eio_req *req)
398{ 523{
399 dSP;
400
401 if (req->flags & FLAG_SV1_RO_OFF) 524 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 525 SvREADONLY_off (req->sv2);
403 526
404 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 527 if (!EIO_CANCELLED (req) && req->callback)
405 { 528 {
529 dSP;
530 static SV *sv_result_cache; /* caches the result integer SV */
531 SV *sv_result;
532
406 ENTER; 533 ENTER;
407 SAVETMPS; 534 SAVETMPS;
408 PUSHMARK (SP); 535 PUSHMARK (SP);
409 EXTEND (SP, 1); 536 EXTEND (SP, 1);
410 537
538 /* do not recreate the result IV from scratch each time */
539 if (expect_true (sv_result_cache))
540 {
541 sv_result = sv_result_cache; sv_result_cache = 0;
542 SvIV_set (sv_result, req->result);
543 SvIOK_only (sv_result);
544 }
545 else
546 {
547 sv_result = newSViv (req->result);
548 SvREADONLY_on (sv_result);
549 }
550
411 switch (req->type) 551 switch (req->type)
412 { 552 {
553 case EIO_WD_OPEN:
554 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
555 break;
556
413 case REQ_READDIR: 557 case EIO_READDIR:
414 { 558 {
415 SV *rv = &PL_sv_undef; 559 SV *rv = &PL_sv_undef;
416 560
417 if (req->result >= 0) 561 if (req->result >= 0)
418 { 562 {
419 int i; 563 int i;
420 char *buf = req->ptr2; 564 char *names = (char *)req->ptr2;
565 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
421 AV *av = newAV (); 566 AV *av = newAV ();
422 567
423 av_extend (av, req->result - 1); 568 av_extend (av, req->result - 1);
424 569
425 for (i = 0; i < req->result; ++i) 570 for (i = 0; i < req->result; ++i)
426 { 571 {
427 SV *sv = newSVpv (buf, 0); 572 if (req->int1 & EIO_READDIR_DENTS)
573 {
574 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428 575
576 if (req->int1 & EIO_READDIR_CUSTOM2)
577 {
578 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
579 AV *avent = newAV ();
580
581 av_extend (avent, 2);
582
583 if (!sv_type [ent->type])
584 {
585 sv_type [ent->type] = newSViv (ent->type);
586 SvREADONLY_on (sv_type [ent->type]);
587 }
588
589 av_store (avent, 0, namesv);
590 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
591 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
592
593 av_store (av, i, newRV_noinc ((SV *)avent));
594 }
595 else
429 av_store (av, i, sv); 596 av_store (av, i, namesv);
597
598 ++ent;
599 }
600 else
601 {
602 SV *name = newSVpv (names, 0);
603 av_store (av, i, name);
430 buf += SvCUR (sv) + 1; 604 names += SvCUR (name) + 1;
605 }
431 } 606 }
432 607
433 rv = sv_2mortal (newRV_noinc ((SV *)av)); 608 rv = sv_2mortal (newRV_noinc ((SV *)av));
434 } 609 }
435 610
436 PUSHs (rv); 611 PUSHs (rv);
612
613 if (req->int1 & EIO_READDIR_CUSTOM1)
614 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
437 } 615 }
438 break; 616 break;
439 617
440 case REQ_OPEN: 618 case EIO_OPEN:
619 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
620 break;
621
622 case EIO_STATVFS:
623 case EIO_FSTATVFS:
441 { 624 {
442 /* convert fd to fh */ 625 SV *rv = &PL_sv_undef;
443 SV *fh; 626
627#ifndef _WIN32
628 if (req->result >= 0)
629 {
630 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
631 HV *hv = newHV ();
632 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
633 * chooses to make it a struct.
634 */
635 unsigned long fsid = 0;
636 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
444 637
445 PUSHs (sv_2mortal (newSViv (req->result))); 638 rv = sv_2mortal (newRV_noinc ((SV *)hv));
446 PUTBACK;
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
448 SPAGAIN;
449 639
450 fh = SvREFCNT_inc (POPs); 640 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
641 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
642 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
643 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
644 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
645 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
646 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
647 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
648 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
649 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
650 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
651 }
652#endif
451 653
452 PUSHMARK (SP); 654 PUSHs (rv);
453 XPUSHs (sv_2mortal (fh));
454 } 655 }
656
455 break; 657 break;
456 658
457 case REQ_GROUP: 659 case EIO_GROUP:
458 req->int1 = 2; /* mark group as finished */ 660 req->int1 = 2; /* mark group as finished */
459 661
460 if (req->sv1) 662 if (req->sv1)
461 { 663 {
462 int i; 664 int i;
… …
466 for (i = 0; i <= AvFILL (av); ++i) 668 for (i = 0; i <= AvFILL (av); ++i)
467 PUSHs (*av_fetch (av, i, 0)); 669 PUSHs (*av_fetch (av, i, 0));
468 } 670 }
469 break; 671 break;
470 672
471 case REQ_NOP: 673 case EIO_NOP:
472 case REQ_BUSY: 674 case EIO_BUSY:
473 break; 675 break;
474 676
475 case REQ_READLINK: 677 case EIO_READLINK:
678 case EIO_REALPATH:
476 if (req->result > 0) 679 if (req->result > 0)
680 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
681 break;
682
683 case EIO_STAT:
684 case EIO_LSTAT:
685 case EIO_FSTAT:
686 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
687
688 if (!(PL_laststatval = req->result))
689 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
690 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
691
692 PUSHs (sv_result);
693 break;
694
695 case EIO_SEEK:
696 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
697 break;
698
699 case EIO_READ:
700 {
701 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
702 *SvEND (req->sv2) = 0;
703 SvPOK_only (req->sv2);
704 SvSETMAGIC (req->sv2);
705 PUSHs (sv_result);
706 }
707 break;
708
709 case EIO_SLURP:
710 {
711 if (req->result >= 0)
712 {
713 /* if length was originally not known, we steal the malloc'ed memory */
714 if (req->flags & EIO_FLAG_PTR2_FREE)
715 {
716 req->flags &= ~EIO_FLAG_PTR2_FREE;
717 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
718 }
719 else
720 {
721 SvCUR_set (req->sv2, req->result);
722 *SvEND (req->sv2) = 0;
723 SvPOK_only (req->sv2);
724 }
725
726 SvSETMAGIC (req->sv2);
727 }
728
729 PUSHs (sv_result);
730 }
731 break;
732
733 case EIO_CUSTOM:
734 if (req->feed == fiemap)
477 { 735 {
478 SvCUR_set (req->sv1, req->result); 736#if HAVE_FIEMAP
479 *SvEND (req->sv1) = 0;
480 PUSHs (req->sv1); 737 if (!req->result)
738 {
739 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
740
741 if (fiemap->fm_extent_count)
742 {
743 AV *av = newAV ();
744 int i;
745
746 while (fiemap->fm_mapped_extents)
747 {
748 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
749 AV *ext_av = newAV ();
750
751 av_store (ext_av, 3, newSVuv (extent->fe_flags));
752 av_store (ext_av, 2, newSVval64 (extent->fe_length));
753 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
754 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
755
756 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
757 }
758
759 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
760 }
761 else
762 {
763 SvIV_set (sv_result, fiemap->fm_mapped_extents);
764 PUSHs (sv_result);
765 }
766 }
767#endif
481 } 768 }
769 else
770 PUSHs (sv_result);
482 break; 771 break;
483 772
484 case REQ_STAT: 773 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
485 case REQ_LSTAT: 774 if (req->result > 0)
486 case REQ_FSTAT: 775 SvIV_set (sv_result, 0);
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 776 /* FALLTHROUGH */
488 PL_laststatval = req->result;
489 PL_statcache = *(Stat_t *)(req->ptr2);
490 PUSHs (sv_2mortal (newSViv (req->result)));
491 break;
492
493 case REQ_READ:
494 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
495 *SvEND (req->sv1) = 0;
496 PUSHs (sv_2mortal (newSViv (req->result)));
497 break;
498 777
499 default: 778 default:
500 PUSHs (sv_2mortal (newSViv (req->result))); 779 PUSHs (sv_result);
501 break; 780 break;
502 } 781 }
503 782
504 errno = req->errorno; 783 errno = req->errorno;
505 784
506 PUTBACK; 785 PUTBACK;
507 call_sv (req->callback, G_VOID | G_EVAL); 786 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508 SPAGAIN; 787 SPAGAIN;
788
789 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
790 SvREFCNT_dec (sv_result);
791 else
792 sv_result_cache = sv_result;
509 793
510 FREETMPS; 794 FREETMPS;
511 LEAVE; 795 LEAVE;
796
797 PUTBACK;
512 } 798 }
513 799
514 if (req->grp) 800 return !!SvTRUE (ERRSV);
515 {
516 aio_req grp = req->grp;
517
518 /* unlink request */
519 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
520 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
521
522 if (grp->grp_first == req)
523 grp->grp_first = req->grp_next;
524
525 aio_grp_dec (grp);
526 }
527
528 if (SvTRUE (ERRSV))
529 {
530 req_free (req);
531 croak (0);
532 }
533} 801}
534 802
535static void req_free (aio_req req) 803static void
804req_destroy (aio_req req)
536{ 805{
537 if (req->self) 806 if (req->self)
538 { 807 {
539 sv_unmagic (req->self, PERL_MAGIC_ext); 808 sv_unmagic (req->self, PERL_MAGIC_ext);
540 SvREFCNT_dec (req->self); 809 SvREFCNT_dec (req->self);
541 } 810 }
542 811
543 SvREFCNT_dec (req->fh);
544 SvREFCNT_dec (req->sv1); 812 SvREFCNT_dec (req->sv1);
545 SvREFCNT_dec (req->sv2); 813 SvREFCNT_dec (req->sv2);
814 SvREFCNT_dec (req->sv3);
815 SvREFCNT_dec (req->sv4);
546 SvREFCNT_dec (req->callback); 816 SvREFCNT_dec (req->callback);
547 817
548 if (req->flags & FLAG_PTR2_FREE)
549 free (req->ptr2);
550
551 Safefree (req); 818 free (req);
552} 819}
553 820
821static void
554static void req_cancel_subs (aio_req grp) 822req_cancel_subs (aio_req grp)
555{ 823{
556 aio_req sub;
557
558 if (grp->type != REQ_GROUP) 824 if (grp->type != EIO_GROUP)
559 return; 825 return;
560 826
561 SvREFCNT_dec (grp->sv2); 827 SvREFCNT_dec (grp->sv2);
562 grp->sv2 = 0; 828 grp->sv2 = 0;
563 829
564 for (sub = grp->grp_first; sub; sub = sub->grp_next) 830 eio_grp_cancel (grp);
565 req_cancel (sub);
566} 831}
567 832
568static void req_cancel (aio_req req) 833static void ecb_cold
834create_respipe (void)
569{ 835{
570 req->flags |= FLAG_CANCELLED; 836 if (s_epipe_renew (&respipe))
571 837 croak ("IO::AIO: unable to initialize result pipe");
572 req_cancel_subs (req);
573} 838}
574 839
575static void *aio_proc(void *arg); 840static void
576 841poll_wait (void)
577static void start_thread (void)
578{ 842{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590#ifdef PTHREAD_SCOPE_PROCESS
591 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
592#endif
593
594 sigfillset (&fullsigset);
595
596 LOCK (wrklock);
597 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
598
599 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
600 {
601 wrk->prev = &wrk_first;
602 wrk->next = wrk_first.next;
603 wrk_first.next->prev = wrk;
604 wrk_first.next = wrk;
605 ++started;
606 }
607 else
608 free (wrk);
609
610 sigprocmask (SIG_SETMASK, &oldsigset, 0);
611 UNLOCK (wrklock);
612}
613
614static void maybe_start_thread ()
615{
616 if (get_nthreads () >= wanted)
617 return;
618
619 /* todo: maybe use idle here, but might be less exact */
620 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
621 return;
622
623 start_thread ();
624}
625
626static void req_send (aio_req req)
627{
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 pthread_cond_signal (&reqwait);
634 UNLOCK (reqlock);
635
636 maybe_start_thread ();
637}
638
639static void end_thread (void)
640{
641 aio_req req;
642
643 Newz (0, req, 1, aio_cb);
644
645 req->type = REQ_QUIT;
646 req->pri = PRI_MAX + PRI_BIAS;
647
648 LOCK (reqlock);
649 reqq_push (&req_queue, req);
650 pthread_cond_signal (&reqwait);
651 UNLOCK (reqlock);
652
653 LOCK (wrklock);
654 --started;
655 UNLOCK (wrklock);
656}
657
658static void set_max_idle (int nthreads)
659{
660 if (WORDACCESS_UNSAFE) LOCK (reqlock);
661 max_idle = nthreads <= 0 ? 1 : nthreads;
662 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
663}
664
665static void min_parallel (int nthreads)
666{
667 if (wanted < nthreads)
668 wanted = nthreads;
669}
670
671static void max_parallel (int nthreads)
672{
673 if (wanted > nthreads)
674 wanted = nthreads;
675
676 while (started > wanted)
677 end_thread ();
678}
679
680static void poll_wait ()
681{
682 fd_set rfd;
683
684 while (nreqs) 843 while (eio_nreqs ())
685 { 844 {
686 int size; 845 int size;
687 if (WORDACCESS_UNSAFE) LOCK (reslock); 846
847 X_LOCK (EIO_POOL->reslock);
688 size = res_queue.size; 848 size = EIO_POOL->res_queue.size;
689 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 849 X_UNLOCK (EIO_POOL->reslock);
690 850
691 if (size) 851 if (size)
692 return; 852 return;
693 853
694 maybe_start_thread (); 854 etp_maybe_start_thread (EIO_POOL);
695 855
696 FD_ZERO(&rfd); 856 s_epipe_wait (&respipe);
697 FD_SET(respipe [0], &rfd);
698
699 select (respipe [0] + 1, &rfd, 0, 0, 0);
700 } 857 }
701} 858}
702 859
703static int poll_cb () 860static int
861poll_cb (void)
704{ 862{
705 dSP;
706 int count = 0;
707 int maxreqs = max_poll_reqs;
708 int do_croak = 0;
709 struct timeval tv_start, tv_now;
710 aio_req req;
711
712 if (max_poll_time)
713 gettimeofday (&tv_start, 0);
714
715 for (;;) 863 for (;;)
716 { 864 {
717 for (;;) 865 int res = eio_poll ();
866
867 if (res > 0)
868 croak (0);
869
870 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 return res;
872
873 poll_wait ();
874 }
875}
876
877static void ecb_cold
878reinit (void)
879{
880 create_respipe ();
881
882 if (eio_init (want_poll, done_poll) < 0)
883 croak ("IO::AIO: unable to initialise eio library");
884}
885
886/*****************************************************************************/
887
888static SV *
889get_cb (SV *cb_sv)
890{
891 SvGETMAGIC (cb_sv);
892 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
893}
894
895static aio_req ecb_noinline
896dreq (SV *callback)
897{
898 SV *cb_cv;
899 aio_req req;
900 int req_pri = next_pri;
901 next_pri = EIO_PRI_DEFAULT;
902
903 cb_cv = get_cb (callback);
904
905 req = calloc (sizeof (*req), 1);
906 if (!req)
907 croak ("out of memory during eio_req allocation");
908
909 req->callback = SvREFCNT_inc (cb_cv);
910 req->pri = req_pri;
911
912 return req;
913}
914
915#define dREQ \
916 aio_req req = dreq (callback); \
917
918#define REQ_SEND \
919 PUTBACK; \
920 req_submit (req); \
921 SPAGAIN; \
922 \
923 if (GIMME_V != G_VOID) \
924 XPUSHs (req_sv (req, aio_req_stash));
925
926ecb_inline void
927req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
928{
929 if (expect_false (SvROK (path)))
930 {
931 SV *rv = SvRV (path);
932 SV *wdob;
933
934 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
718 { 935 {
719 maybe_start_thread (); 936 path = AvARRAY (rv)[1];
937 wdob = AvARRAY (rv)[0];
720 938
721 LOCK (reslock); 939 if (SvOK (wdob))
722 req = reqq_shift (&res_queue);
723
724 if (req)
725 { 940 {
726 --npending; 941 *wd = SvAIO_WD (wdob);
727 942 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
728 if (!res_queue.size)
729 {
730 /* read any signals sent by the worker threads */
731 char buf [32];
732 while (read (respipe [0], buf, 32) == 32)
733 ;
734 }
735 }
736
737 UNLOCK (reslock);
738
739 if (!req)
740 break;
741
742 --nreqs;
743
744 if (req->type == REQ_GROUP && req->size)
745 {
746 req->int1 = 1; /* mark request as delayed */
747 continue;
748 } 943 }
749 else 944 else
750 { 945 *wd = EIO_INVALID_WD;
751 req_invoke (req);
752
753 count++;
754 }
755
756 req_free (req);
757
758 if (maxreqs && !--maxreqs)
759 break;
760
761 if (max_poll_time)
762 {
763 gettimeofday (&tv_now, 0);
764
765 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
766 break;
767 }
768 } 946 }
947 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
948 {
949 *wd = (aio_wd)(long)SvIVX (rv);
950 *wdsv = SvREFCNT_inc_NN (rv);
951 *ptr = ".";
952 return; /* path set to "." */
953 }
954 else
955 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
956 }
769 957
770 if (nreqs <= max_outstanding) 958 *pathsv = newSVsv (path);
959 *ptr = SvPVbyte_nolen (*pathsv);
960}
961
962static void ecb_noinline
963req_set_path1 (aio_req req, SV *path)
964{
965 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
966}
967
968static void ecb_noinline
969req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
970{
971 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
972
973 switch (SvTYPE (rv))
974 {
975 case SVt_PVIO:
976 case SVt_PVLV:
977 case SVt_PVGV:
978 req->type = type_fh;
979 req->sv1 = newSVsv (fh_or_path);
980 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
771 break; 981 break;
772 982
773 poll_wait (); 983 default:
774 984 req->type = type_path;
775 ++maxreqs; 985 req_set_path1 (req, fh_or_path);
986 break;
776 } 987 }
777
778 return count;
779}
780
781static void create_pipe ()
782{
783 if (pipe (respipe))
784 croak ("unable to initialize result pipe");
785
786 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
787 croak ("cannot set result pipe to nonblocking mode");
788
789 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791} 988}
792 989
793/*****************************************************************************/ 990/*****************************************************************************/
794/* work around various missing functions */
795 991
796#if !HAVE_PREADWRITE 992static void
797# define pread aio_pread 993ts_set (struct timespec *ts, NV value)
798# define pwrite aio_pwrite
799
800/*
801 * make our pread/pwrite safe against themselves, but not against
802 * normal read/write by using a mutex. slows down execution a lot,
803 * but that's your problem, not mine.
804 */
805static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
806
807static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
808{ 994{
809 ssize_t res; 995 ts->tv_sec = value;
810 off_t ooffset; 996 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
811
812 LOCK (preadwritelock);
813 ooffset = lseek (fd, 0, SEEK_CUR);
814 lseek (fd, offset, SEEK_SET);
815 res = read (fd, buf, count);
816 lseek (fd, ooffset, SEEK_SET);
817 UNLOCK (preadwritelock);
818
819 return res;
820} 997}
821 998
822static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 999static NV
1000ts_get (const struct timespec *ts)
823{ 1001{
824 ssize_t res; 1002 return ts->tv_sec + ts->tv_nsec * 1e-9;
825 off_t ooffset;
826
827 LOCK (preadwritelock);
828 ooffset = lseek (fd, 0, SEEK_CUR);
829 lseek (fd, offset, SEEK_SET);
830 res = write (fd, buf, count);
831 lseek (fd, offset, SEEK_SET);
832 UNLOCK (preadwritelock);
833
834 return res;
835}
836#endif
837
838#if !HAVE_FDATASYNC
839# define fdatasync fsync
840#endif
841
842#if !HAVE_READAHEAD
843# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
844
845static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
846{
847 dBUF;
848
849 while (count > 0)
850 {
851 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
852
853 pread (fd, aio_buf, len, offset);
854 offset += len;
855 count -= len;
856 }
857
858 errno = 0;
859}
860
861#endif
862
863#if !HAVE_READDIR_R
864# define readdir_r aio_readdir_r
865
866static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
867
868static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
869{
870 struct dirent *e;
871 int errorno;
872
873 LOCK (readdirlock);
874
875 e = readdir (dirp);
876 errorno = errno;
877
878 if (e)
879 {
880 *res = ent;
881 strcpy (ent->d_name, e->d_name);
882 }
883 else
884 *res = 0;
885
886 UNLOCK (readdirlock);
887
888 errno = errorno;
889 return e ? 0 : -1;
890}
891#endif
892
893/* sendfile always needs emulation */
894static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
895{
896 ssize_t res;
897
898 if (!count)
899 return 0;
900
901#if HAVE_SENDFILE
902# if __linux
903 res = sendfile (ofd, ifd, &offset, count);
904
905# elif __freebsd
906 /*
907 * Of course, the freebsd sendfile is a dire hack with no thoughts
908 * wasted on making it similar to other I/O functions.
909 */
910 {
911 off_t sbytes;
912 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
913
914 if (res < 0 && sbytes)
915 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
916 res = sbytes;
917 }
918
919# elif __hpux
920 res = sendfile (ofd, ifd, offset, count, 0, 0);
921
922# elif __solaris
923 {
924 struct sendfilevec vec;
925 size_t sbytes;
926
927 vec.sfv_fd = ifd;
928 vec.sfv_flag = 0;
929 vec.sfv_off = offset;
930 vec.sfv_len = count;
931
932 res = sendfilev (ofd, &vec, 1, &sbytes);
933
934 if (res < 0 && sbytes)
935 res = sbytes;
936 }
937
938# endif
939#else
940 res = -1;
941 errno = ENOSYS;
942#endif
943
944 if (res < 0
945 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
946#if __solaris
947 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
948#endif
949 )
950 )
951 {
952 /* emulate sendfile. this is a major pain in the ass */
953 dBUF;
954
955 res = 0;
956
957 while (count)
958 {
959 ssize_t cnt;
960
961 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
962
963 if (cnt <= 0)
964 {
965 if (cnt && !res) res = -1;
966 break;
967 }
968
969 cnt = write (ofd, aio_buf, cnt);
970
971 if (cnt <= 0)
972 {
973 if (cnt && !res) res = -1;
974 break;
975 }
976
977 offset += cnt;
978 res += cnt;
979 count -= cnt;
980 }
981 }
982
983 return res;
984}
985
986/* read a full directory */
987static void scandir_ (aio_req req, worker *self)
988{
989 DIR *dirp;
990 union
991 {
992 struct dirent d;
993 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
994 } *u;
995 struct dirent *entp;
996 char *name, *names;
997 int memlen = 4096;
998 int memofs = 0;
999 int res = 0;
1000 int errorno;
1001
1002 LOCK (wrklock);
1003 self->dirp = dirp = opendir (req->ptr1);
1004 self->dbuf = u = malloc (sizeof (*u));
1005 req->flags |= FLAG_PTR2_FREE;
1006 req->ptr2 = names = malloc (memlen);
1007 UNLOCK (wrklock);
1008
1009 if (dirp && u && names)
1010 for (;;)
1011 {
1012 errno = 0;
1013 readdir_r (dirp, &u->d, &entp);
1014
1015 if (!entp)
1016 break;
1017
1018 name = entp->d_name;
1019
1020 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1021 {
1022 int len = strlen (name) + 1;
1023
1024 res++;
1025
1026 while (memofs + len > memlen)
1027 {
1028 memlen *= 2;
1029 LOCK (wrklock);
1030 req->ptr2 = names = realloc (names, memlen);
1031 UNLOCK (wrklock);
1032
1033 if (!names)
1034 break;
1035 }
1036
1037 memcpy (names + memofs, name, len);
1038 memofs += len;
1039 }
1040 }
1041
1042 if (errno)
1043 res = -1;
1044
1045 req->result = res;
1046} 1003}
1047 1004
1048/*****************************************************************************/ 1005/*****************************************************************************/
1049 1006
1050static void *aio_proc (void *thr_arg) 1007XS(boot_IO__AIO) ecb_cold;
1051{
1052 aio_req req;
1053 struct timespec ts;
1054 worker *self = (worker *)thr_arg;
1055 1008
1056 /* try to distribute timeouts somewhat evenly */
1057 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1058 * (1000000000UL / 1024UL);
1059
1060 for (;;)
1061 {
1062 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1063
1064 LOCK (reqlock);
1065
1066 for (;;)
1067 {
1068 self->req = req = reqq_shift (&req_queue);
1069
1070 if (req)
1071 break;
1072
1073 ++idle;
1074
1075 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1076 == ETIMEDOUT)
1077 {
1078 if (idle > max_idle)
1079 {
1080 --idle;
1081 UNLOCK (reqlock);
1082 LOCK (wrklock);
1083 --started;
1084 UNLOCK (wrklock);
1085 goto quit;
1086 }
1087
1088 /* we are allowed to idle, so do so without any timeout */
1089 pthread_cond_wait (&reqwait, &reqlock);
1090 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091 }
1092
1093 --idle;
1094 }
1095
1096 --nready;
1097
1098 UNLOCK (reqlock);
1099
1100 errno = 0; /* strictly unnecessary */
1101
1102 if (!(req->flags & FLAG_CANCELLED))
1103 switch (req->type)
1104 {
1105 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1106 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1107
1108 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1109 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1110
1111 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1113 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1114
1115 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1116 case REQ_CLOSE: req->result = close (req->int1); break;
1117 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 /* write a dummy byte to the pipe so fh becomes ready */
1159 write (respipe [1], &respipe, 1);
1160
1161 self->req = 0;
1162 worker_clear (self);
1163
1164 UNLOCK (reslock);
1165 }
1166
1167quit:
1168 LOCK (wrklock);
1169 worker_free (self);
1170 UNLOCK (wrklock);
1171
1172 return 0;
1173}
1174
1175/*****************************************************************************/
1176
1177static void atfork_prepare (void)
1178{
1179 LOCK (wrklock);
1180 LOCK (reqlock);
1181 LOCK (reslock);
1182#if !HAVE_PREADWRITE
1183 LOCK (preadwritelock);
1184#endif
1185#if !HAVE_READDIR_R
1186 LOCK (readdirlock);
1187#endif
1188}
1189
1190static void atfork_parent (void)
1191{
1192#if !HAVE_READDIR_R
1193 UNLOCK (readdirlock);
1194#endif
1195#if !HAVE_PREADWRITE
1196 UNLOCK (preadwritelock);
1197#endif
1198 UNLOCK (reslock);
1199 UNLOCK (reqlock);
1200 UNLOCK (wrklock);
1201}
1202
1203static void atfork_child (void)
1204{
1205 aio_req prv;
1206
1207 while (prv = reqq_shift (&req_queue))
1208 req_free (prv);
1209
1210 while (prv = reqq_shift (&res_queue))
1211 req_free (prv);
1212
1213 while (wrk_first.next != &wrk_first)
1214 {
1215 worker *wrk = wrk_first.next;
1216
1217 if (wrk->req)
1218 req_free (wrk->req);
1219
1220 worker_clear (wrk);
1221 worker_free (wrk);
1222 }
1223
1224 started = 0;
1225 idle = 0;
1226 nreqs = 0;
1227 nready = 0;
1228 npending = 0;
1229
1230 close (respipe [0]);
1231 close (respipe [1]);
1232 create_pipe ();
1233
1234 atfork_parent ();
1235}
1236
1237#define dREQ \
1238 aio_req req; \
1239 int req_pri = next_pri; \
1240 next_pri = DEFAULT_PRI + PRI_BIAS; \
1241 \
1242 if (SvOK (callback) && !SvROK (callback)) \
1243 croak ("callback must be undef or of reference type"); \
1244 \
1245 Newz (0, req, 1, aio_cb); \
1246 if (!req) \
1247 croak ("out of memory during aio_req allocation"); \
1248 \
1249 req->callback = newSVsv (callback); \
1250 req->pri = req_pri
1251
1252#define REQ_SEND \
1253 req_send (req); \
1254 \
1255 if (GIMME_V != G_VOID) \
1256 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1257
1258MODULE = IO::AIO PACKAGE = IO::AIO 1009MODULE = IO::AIO PACKAGE = IO::AIO
1259 1010
1260PROTOTYPES: ENABLE 1011PROTOTYPES: ENABLE
1261 1012
1262BOOT: 1013BOOT:
1263{ 1014{
1015 static const struct {
1016 const char *name;
1017 IV iv;
1018 } *civ, const_iv[] = {
1019# define const_niv(name, value) { # name, (IV) value },
1020# define const_iv(name) { # name, (IV) name },
1021# define const_eio(name) { # name, (IV) EIO_ ## name },
1022
1023 /* you have to re-run ./gendef0 after adding/removing any constants here */
1024 /* the first block can be undef if missing */
1025 const_iv (ENOSYS)
1026 const_iv (EXDEV)
1027 const_iv (EBADR)
1028
1029 /* for lseek */
1030 const_iv (SEEK_DATA)
1031 const_iv (SEEK_HOLE)
1032
1033 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1034 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1035 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1036 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1037 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1038 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1039
1040 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1041 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1042 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1043 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1044 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1045
1046 /* the second block will be 0 when missing */
1047 const_iv (O_RDONLY)
1048 const_iv (O_WRONLY)
1049 const_iv (O_RDWR)
1050 const_iv (O_CREAT)
1051 const_iv (O_TRUNC)
1052 const_iv (O_EXCL)
1053 const_iv (O_APPEND)
1054
1055 const_iv (O_ASYNC)
1056 const_iv (O_DIRECT)
1057 const_iv (O_NOATIME)
1058
1059 const_iv (O_CLOEXEC)
1060 const_iv (O_NOCTTY)
1061 const_iv (O_NOFOLLOW)
1062 const_iv (O_NONBLOCK)
1063 const_iv (O_EXEC)
1064 const_iv (O_SEARCH)
1065 const_iv (O_DIRECTORY)
1066 const_iv (O_DSYNC)
1067 const_iv (O_RSYNC)
1068 const_iv (O_SYNC)
1069 const_iv (O_PATH)
1070 const_iv (O_TMPFILE)
1071 const_iv (O_TTY_INIT)
1072
1073 const_iv (S_IFIFO)
1074 const_iv (S_IFCHR)
1075 const_iv (S_IFBLK)
1076 const_iv (S_IFLNK)
1077 const_iv (S_IFREG)
1078 const_iv (S_IFDIR)
1079 const_iv (S_IFWHT)
1080 const_iv (S_IFSOCK)
1081 const_iv (S_IFMT)
1082
1083 const_iv (ST_RDONLY)
1084 const_iv (ST_NOSUID)
1085 const_iv (ST_NODEV)
1086 const_iv (ST_NOEXEC)
1087 const_iv (ST_SYNCHRONOUS)
1088 const_iv (ST_MANDLOCK)
1089 const_iv (ST_WRITE)
1090 const_iv (ST_APPEND)
1091 const_iv (ST_IMMUTABLE)
1092 const_iv (ST_NOATIME)
1093 const_iv (ST_NODIRATIME)
1094 const_iv (ST_RELATIME)
1095
1096 const_iv (PROT_NONE)
1097 const_iv (PROT_EXEC)
1098 const_iv (PROT_READ)
1099 const_iv (PROT_WRITE)
1100
1101 const_iv (MAP_PRIVATE)
1102 const_iv (MAP_SHARED)
1103 const_iv (MAP_FIXED)
1104 const_iv (MAP_ANONYMOUS)
1105
1106 /* linuxish */
1107 const_iv (MAP_LOCKED)
1108 const_iv (MAP_NORESERVE)
1109 const_iv (MAP_POPULATE)
1110 const_iv (MAP_NONBLOCK)
1111 const_iv (MAP_GROWSDOWN)
1112 const_iv (MAP_32BIT)
1113 const_iv (MAP_HUGETLB)
1114 const_iv (MAP_STACK)
1115
1116 const_iv (MREMAP_MAYMOVE)
1117 const_iv (MREMAP_FIXED)
1118
1119 const_iv (F_DUPFD_CLOEXEC)
1120
1121 const_iv (F_OFD_GETLK)
1122 const_iv (F_OFD_SETLK)
1123 const_iv (F_OFD_GETLKW)
1124
1125 const_iv (FIFREEZE)
1126 const_iv (FITHAW)
1127 const_iv (FITRIM)
1128 const_iv (FICLONE)
1129 const_iv (FICLONERANGE)
1130 const_iv (FIDEDUPERANGE)
1131
1132 const_iv (FS_IOC_GETFLAGS)
1133 const_iv (FS_IOC_SETFLAGS)
1134 const_iv (FS_IOC_GETVERSION)
1135 const_iv (FS_IOC_SETVERSION)
1136 const_iv (FS_IOC_FIEMAP)
1137 const_iv (FS_IOC_FSGETXATTR)
1138 const_iv (FS_IOC_FSSETXATTR)
1139 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1140 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1141 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1142
1143 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1144
1145 const_iv (FS_SECRM_FL)
1146 const_iv (FS_UNRM_FL)
1147 const_iv (FS_COMPR_FL)
1148 const_iv (FS_SYNC_FL)
1149 const_iv (FS_IMMUTABLE_FL)
1150 const_iv (FS_APPEND_FL)
1151 const_iv (FS_NODUMP_FL)
1152 const_iv (FS_NOATIME_FL)
1153 const_iv (FS_DIRTY_FL)
1154 const_iv (FS_COMPRBLK_FL)
1155 const_iv (FS_NOCOMP_FL)
1156 const_iv (FS_ENCRYPT_FL)
1157 const_iv (FS_BTREE_FL)
1158 const_iv (FS_INDEX_FL)
1159 const_iv (FS_JOURNAL_DATA_FL)
1160 const_iv (FS_NOTAIL_FL)
1161 const_iv (FS_DIRSYNC_FL)
1162 const_iv (FS_TOPDIR_FL)
1163 const_iv (FS_FL_USER_MODIFIABLE)
1164
1165 const_iv (FS_XFLAG_REALTIME)
1166 const_iv (FS_XFLAG_PREALLOC)
1167 const_iv (FS_XFLAG_IMMUTABLE)
1168 const_iv (FS_XFLAG_APPEND)
1169 const_iv (FS_XFLAG_SYNC)
1170 const_iv (FS_XFLAG_NOATIME)
1171 const_iv (FS_XFLAG_NODUMP)
1172 const_iv (FS_XFLAG_RTINHERIT)
1173 const_iv (FS_XFLAG_PROJINHERIT)
1174 const_iv (FS_XFLAG_NOSYMLINKS)
1175 const_iv (FS_XFLAG_EXTSIZE)
1176 const_iv (FS_XFLAG_EXTSZINHERIT)
1177 const_iv (FS_XFLAG_NODEFRAG)
1178 const_iv (FS_XFLAG_FILESTREAM)
1179 const_iv (FS_XFLAG_DAX)
1180 const_iv (FS_XFLAG_HASATTR)
1181
1182 const_iv (FIEMAP_FLAG_SYNC)
1183 const_iv (FIEMAP_FLAG_XATTR)
1184 const_iv (FIEMAP_FLAGS_COMPAT)
1185 const_iv (FIEMAP_EXTENT_LAST)
1186 const_iv (FIEMAP_EXTENT_UNKNOWN)
1187 const_iv (FIEMAP_EXTENT_DELALLOC)
1188 const_iv (FIEMAP_EXTENT_ENCODED)
1189 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1190 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1191 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1192 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1193 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1194 const_iv (FIEMAP_EXTENT_MERGED)
1195 const_iv (FIEMAP_EXTENT_SHARED)
1196
1197 const_iv (SPLICE_F_MOVE)
1198 const_iv (SPLICE_F_NONBLOCK)
1199 const_iv (SPLICE_F_MORE)
1200 const_iv (SPLICE_F_GIFT)
1201
1202 const_iv (EFD_CLOEXEC)
1203 const_iv (EFD_NONBLOCK)
1204 const_iv (EFD_SEMAPHORE)
1205
1206 const_iv (CLOCK_REALTIME)
1207 const_iv (CLOCK_MONOTONIC)
1208 const_iv (CLOCK_BOOTTIME)
1209 const_iv (CLOCK_REALTIME_ALARM)
1210 const_iv (CLOCK_BOOTTIME_ALARM)
1211
1212 const_iv (TFD_NONBLOCK)
1213 const_iv (TFD_CLOEXEC)
1214
1215 const_iv (TFD_TIMER_ABSTIME)
1216 const_iv (TFD_TIMER_CANCEL_ON_SET)
1217
1218 /* these are libeio constants, and are independent of gendef0 */
1219 const_eio (SEEK_SET)
1220 const_eio (SEEK_CUR)
1221 const_eio (SEEK_END)
1222
1223 const_eio (MCL_FUTURE)
1224 const_eio (MCL_CURRENT)
1225
1226 const_eio (MS_ASYNC)
1227 const_eio (MS_INVALIDATE)
1228 const_eio (MS_SYNC)
1229
1230 const_eio (MT_MODIFY)
1231
1232 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1233 const_eio (SYNC_FILE_RANGE_WRITE)
1234 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1235
1236 const_eio (FALLOC_FL_KEEP_SIZE)
1237 const_eio (FALLOC_FL_PUNCH_HOLE)
1238 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1239 const_eio (FALLOC_FL_ZERO_RANGE)
1240 const_eio (FALLOC_FL_INSERT_RANGE)
1241 const_eio (FALLOC_FL_UNSHARE_RANGE)
1242
1243 const_eio (RENAME_NOREPLACE)
1244 const_eio (RENAME_EXCHANGE)
1245 const_eio (RENAME_WHITEOUT)
1246
1247 const_eio (READDIR_DENTS)
1248 const_eio (READDIR_DIRS_FIRST)
1249 const_eio (READDIR_STAT_ORDER)
1250 const_eio (READDIR_FOUND_UNKNOWN)
1251
1252 const_eio (DT_UNKNOWN)
1253 const_eio (DT_FIFO)
1254 const_eio (DT_CHR)
1255 const_eio (DT_DIR)
1256 const_eio (DT_BLK)
1257 const_eio (DT_REG)
1258 const_eio (DT_LNK)
1259 const_eio (DT_SOCK)
1260 const_eio (DT_WHT)
1261 };
1262
1264 HV *stash = gv_stashpv ("IO::AIO", 1); 1263 aio_stash = gv_stashpv ("IO::AIO" , 1);
1264 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1265 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1266 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1265 1267
1266 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1268 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1269 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1268 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1271 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1272 1270
1273 create_pipe (); 1271 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1275}
1276 1272
1273 reinit ();
1274}
1275
1277void 1276void
1277reinit ()
1278 PROTOTYPE:
1279
1280void
1278max_poll_reqs (int nreqs) 1281max_poll_reqs (unsigned int nreqs)
1279 PROTOTYPE: $ 1282 PROTOTYPE: $
1280 CODE: 1283 CODE:
1281 max_poll_reqs = nreqs; 1284 eio_set_max_poll_reqs (nreqs);
1282 1285
1283void 1286void
1284max_poll_time (double nseconds) 1287max_poll_time (double nseconds)
1285 PROTOTYPE: $ 1288 PROTOTYPE: $
1286 CODE: 1289 CODE:
1287 max_poll_time = nseconds * AIO_TICKS; 1290 eio_set_max_poll_time (nseconds);
1288 1291
1289void 1292void
1290min_parallel (int nthreads) 1293min_parallel (unsigned int nthreads)
1291 PROTOTYPE: $
1292
1293void
1294max_parallel (int nthreads)
1295 PROTOTYPE: $
1296
1297void
1298max_idle (int nthreads)
1299 PROTOTYPE: $ 1294 PROTOTYPE: $
1300 CODE: 1295 CODE:
1301 set_max_idle (nthreads); 1296 eio_set_min_parallel (nthreads);
1302 1297
1303int 1298void
1304max_outstanding (int maxreqs) 1299max_parallel (unsigned int nthreads)
1305 PROTOTYPE: $ 1300 PROTOTYPE: $
1306 CODE: 1301 CODE:
1307 RETVAL = max_outstanding; 1302 eio_set_max_parallel (nthreads);
1303
1304void
1305max_idle (unsigned int nthreads)
1306 PROTOTYPE: $
1307 CODE:
1308 eio_set_max_idle (nthreads);
1309
1310void
1311idle_timeout (unsigned int seconds)
1312 PROTOTYPE: $
1313 CODE:
1314 eio_set_idle_timeout (seconds);
1315
1316void
1317max_outstanding (unsigned int maxreqs)
1318 PROTOTYPE: $
1319 CODE:
1308 max_outstanding = maxreqs; 1320 max_outstanding = maxreqs;
1309 OUTPUT:
1310 RETVAL
1311 1321
1312void 1322void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1323aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1314 SV * pathname
1315 int flags
1316 int mode
1317 SV * callback
1318 PROTOTYPE: $$$;$
1319 PPCODE: 1324 PPCODE:
1320{ 1325{
1321 dREQ; 1326 dREQ;
1322 1327
1328 req->type = EIO_WD_OPEN;
1329 req_set_path1 (req, pathname);
1330
1331 REQ_SEND;
1332}
1333
1334void
1335aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1336 PPCODE:
1337{
1338 dREQ;
1339
1323 req->type = REQ_OPEN; 1340 req->type = EIO_OPEN;
1324 req->sv1 = newSVsv (pathname); 1341 req_set_path1 (req, pathname);
1325 req->ptr1 = SvPVbyte_nolen (pathname);
1326 req->int1 = flags; 1342 req->int1 = flags;
1327 req->mode = mode; 1343 req->int2 = mode;
1328 1344
1329 REQ_SEND; 1345 REQ_SEND;
1330} 1346}
1331 1347
1332void 1348void
1333aio_close (fh,callback=&PL_sv_undef) 1349aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1334 SV * fh
1335 SV * callback
1336 PROTOTYPE: $;$
1337 ALIAS: 1350 ALIAS:
1338 aio_close = REQ_CLOSE
1339 aio_fsync = REQ_FSYNC 1351 aio_fsync = EIO_FSYNC
1340 aio_fdatasync = REQ_FDATASYNC 1352 aio_fdatasync = EIO_FDATASYNC
1353 aio_syncfs = EIO_SYNCFS
1341 PPCODE: 1354 PPCODE:
1342{ 1355{
1356 int fd = s_fileno_croak (fh, 0);
1343 dREQ; 1357 dREQ;
1344 1358
1345 req->type = ix; 1359 req->type = ix;
1346 req->fh = newSVsv (fh); 1360 req->sv1 = newSVsv (fh);
1347 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1361 req->int1 = fd;
1348 1362
1349 REQ_SEND (req); 1363 REQ_SEND;
1350} 1364}
1351 1365
1352void 1366void
1367aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1368 PPCODE:
1369{
1370 int fd = s_fileno_croak (fh, 0);
1371 dREQ;
1372
1373 req->type = EIO_SYNC_FILE_RANGE;
1374 req->sv1 = newSVsv (fh);
1375 req->int1 = fd;
1376 req->offs = offset;
1377 req->size = nbytes;
1378 req->int2 = flags;
1379
1380 REQ_SEND;
1381}
1382
1383void
1384aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1385 PPCODE:
1386{
1387 int fd = s_fileno_croak (fh, 0);
1388 dREQ;
1389
1390 req->type = EIO_FALLOCATE;
1391 req->sv1 = newSVsv (fh);
1392 req->int1 = fd;
1393 req->int2 = mode;
1394 req->offs = offset;
1395 req->size = len;
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_close (SV *fh, SV *callback = &PL_sv_undef)
1402 PPCODE:
1403{
1404 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1405 int fd = s_fileno_croak (fh, 0);
1406 dREQ;
1407
1408 if (expect_false (close_fd < 0))
1409 {
1410 int pipefd [2];
1411
1412 if (
1413#ifdef _WIN32
1414 _pipe (pipefd, 1, _O_BINARY) < 0
1415#else
1416 pipe (pipefd) < 0
1417 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1418#endif
1419 || close (pipefd [1]) < 0
1420 )
1421 abort (); /*D*/
1422
1423 close_fd = pipefd [0];
1424 }
1425
1426 req->type = EIO_DUP2;
1427 req->int1 = close_fd;
1428 req->sv2 = newSVsv (fh);
1429 req->int2 = fd;
1430
1431 REQ_SEND;
1432}
1433
1434void
1435aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1436 PPCODE:
1437{
1438 int fd = s_fileno_croak (fh, 0);
1439 dREQ;
1440
1441 req->type = EIO_SEEK;
1442 req->sv1 = newSVsv (fh);
1443 req->int1 = fd;
1444 req->offs = SvVAL64 (offset);
1445 req->int2 = whence;
1446
1447 REQ_SEND;
1448}
1449
1450void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1451aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1354 SV * fh
1355 UV offset
1356 UV length
1357 SV * data
1358 UV dataoffset
1359 SV * callback
1360 ALIAS: 1452 ALIAS:
1361 aio_read = REQ_READ 1453 aio_read = EIO_READ
1362 aio_write = REQ_WRITE 1454 aio_write = EIO_WRITE
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1455 PPCODE:
1365{ 1456{
1366 STRLEN svlen; 1457 STRLEN svlen;
1458 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1367 char *svptr = SvPVbyte (data, svlen); 1459 char *svptr = SvPVbyte (data, svlen);
1368 1460 UV len = SvUV (length);
1369 SvUPGRADE (data, SVt_PV);
1370 SvPOK_on (data);
1371 1461
1372 if (dataoffset < 0) 1462 if (dataoffset < 0)
1373 dataoffset += svlen; 1463 dataoffset += svlen;
1374 1464
1375 if (dataoffset < 0 || dataoffset > svlen) 1465 if (dataoffset < 0 || dataoffset > svlen)
1376 croak ("data offset outside of string"); 1466 croak ("dataoffset outside of data scalar");
1377 1467
1378 if (ix == REQ_WRITE) 1468 if (ix == EIO_WRITE)
1379 { 1469 {
1380 /* write: check length and adjust. */ 1470 /* write: check length and adjust. */
1381 if (length < 0 || length + dataoffset > svlen) 1471 if (!SvOK (length) || len + dataoffset > svlen)
1382 length = svlen - dataoffset; 1472 len = svlen - dataoffset;
1383 } 1473 }
1384 else 1474 else
1385 { 1475 {
1386 /* read: grow scalar as necessary */ 1476 /* read: check type and grow scalar as necessary */
1477 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1387 svptr = SvGROW (data, length + dataoffset); 1478 svptr = sv_grow (data, len + dataoffset + 1);
1479 else if (SvCUR (data) < len + dataoffset)
1480 croak ("length + dataoffset outside of scalar, and cannot grow");
1388 } 1481 }
1389
1390 if (length < 0)
1391 croak ("length must not be negative");
1392 1482
1393 { 1483 {
1394 dREQ; 1484 dREQ;
1395 1485
1396 req->type = ix; 1486 req->type = ix;
1397 req->fh = newSVsv (fh); 1487 req->sv1 = newSVsv (fh);
1398 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1488 req->int1 = fd;
1399 : IoOFP (sv_2io (fh))); 1489 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req->offs = offset;
1401 req->size = length; 1490 req->size = len;
1402 req->sv1 = SvREFCNT_inc (data); 1491 req->sv2 = SvREFCNT_inc (data);
1403 req->ptr1 = (char *)svptr + dataoffset; 1492 req->ptr2 = (char *)svptr + dataoffset;
1404 req->stroffset = dataoffset; 1493 req->stroffset = dataoffset;
1405 1494
1406 if (!SvREADONLY (data)) 1495 if (!SvREADONLY (data))
1407 { 1496 {
1408 SvREADONLY_on (data); 1497 SvREADONLY_on (data);
1409 req->flags |= FLAG_SV1_RO_OFF; 1498 req->flags |= FLAG_SV2_RO_OFF;
1410 } 1499 }
1411 1500
1412 REQ_SEND; 1501 REQ_SEND;
1413 } 1502 }
1414} 1503}
1415 1504
1416void 1505void
1417aio_readlink (path,callback=&PL_sv_undef) 1506aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1418 SV * path 1507 ALIAS:
1419 SV * callback 1508 aio_ioctl = EIO_IOCTL
1420 PROTOTYPE: $$;$ 1509 aio_fcntl = EIO_FCNTL
1421 PPCODE: 1510 PPCODE:
1422{ 1511{
1423 SV *data; 1512 int fd = s_fileno_croak (fh, 0);
1513 char *svptr;
1514
1515 if (SvPOK (arg) || !SvNIOK (arg))
1516 {
1517 STRLEN svlen;
1518 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1519#ifdef IOCPARM_LEN
1520 STRLEN need = IOCPARM_LEN (request);
1521#else
1522 STRLEN need = 256;
1523#endif
1524
1525 if (svlen < need)
1526 svptr = SvGROW (arg, need);
1527 }
1528 else
1529 svptr = (char *)SvIV (arg);
1530
1531 {
1532 dREQ;
1533
1534 req->type = ix;
1535 req->sv1 = newSVsv (fh);
1536 req->int1 = fd;
1537 req->int2 = (long)request;
1538 req->sv2 = SvREFCNT_inc (arg);
1539 req->ptr2 = svptr;
1540
1541 REQ_SEND;
1542 }
1543}
1544
1545void
1546aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1547 ALIAS:
1548 aio_readlink = EIO_READLINK
1549 aio_realpath = EIO_REALPATH
1550 PPCODE:
1551{
1424 dREQ; 1552 dREQ;
1425 1553
1426 data = newSV (NAME_MAX);
1427 SvPOK_on (data);
1428
1429 req->type = REQ_READLINK; 1554 req->type = ix;
1430 req->fh = newSVsv (path); 1555 req_set_path1 (req, pathname);
1431 req->ptr2 = SvPVbyte_nolen (path);
1432 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data);
1434 1556
1435 REQ_SEND; 1557 REQ_SEND;
1436} 1558}
1437 1559
1438void 1560void
1439aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1561aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1440 SV * out_fh
1441 SV * in_fh
1442 UV in_offset
1443 UV length
1444 SV * callback
1445 PROTOTYPE: $$$$;$
1446 PPCODE: 1562 PPCODE:
1447{ 1563{
1564 int ifd = s_fileno_croak (in_fh , 0);
1565 int ofd = s_fileno_croak (out_fh, 1);
1448 dREQ; 1566 dREQ;
1449 1567
1450 req->type = REQ_SENDFILE; 1568 req->type = EIO_SENDFILE;
1451 req->fh = newSVsv (out_fh); 1569 req->sv1 = newSVsv (out_fh);
1452 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1570 req->int1 = ofd;
1453 req->sv2 = newSVsv (in_fh); 1571 req->sv2 = newSVsv (in_fh);
1454 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1572 req->int2 = ifd;
1455 req->offs = in_offset; 1573 req->offs = in_offset;
1456 req->size = length; 1574 req->size = length;
1457 1575
1458 REQ_SEND; 1576 REQ_SEND;
1459} 1577}
1460 1578
1461void 1579void
1462aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1580aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1463 SV * fh
1464 UV offset
1465 IV length
1466 SV * callback
1467 PROTOTYPE: $$$;$
1468 PPCODE: 1581 PPCODE:
1469{ 1582{
1583 int fd = s_fileno_croak (fh, 0);
1470 dREQ; 1584 dREQ;
1471 1585
1472 req->type = REQ_READAHEAD; 1586 req->type = EIO_READAHEAD;
1473 req->fh = newSVsv (fh); 1587 req->sv1 = newSVsv (fh);
1474 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1588 req->int1 = fd;
1475 req->offs = offset; 1589 req->offs = offset;
1476 req->size = length; 1590 req->size = length;
1477 1591
1478 REQ_SEND; 1592 REQ_SEND;
1479} 1593}
1480 1594
1481void 1595void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 1596aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1483 SV * fh_or_path
1484 SV * callback
1485 ALIAS: 1597 ALIAS:
1486 aio_stat = REQ_STAT 1598 aio_stat = EIO_STAT
1487 aio_lstat = REQ_LSTAT 1599 aio_lstat = EIO_LSTAT
1600 aio_statvfs = EIO_STATVFS
1488 PPCODE: 1601 PPCODE:
1489{ 1602{
1490 dREQ; 1603 dREQ;
1491 1604
1492 req->ptr2 = malloc (sizeof (Stat_t)); 1605 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1493 if (!req->ptr2)
1494 {
1495 req_free (req);
1496 croak ("out of memory during aio_stat statdata allocation");
1497 }
1498
1499 req->flags |= FLAG_PTR2_FREE;
1500
1501 if (SvPOK (fh_or_path))
1502 {
1503 req->type = ix;
1504 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (fh_or_path);
1506 }
1507 else
1508 {
1509 req->type = REQ_FSTAT;
1510 req->fh = newSVsv (fh_or_path);
1511 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512 }
1513 1606
1514 REQ_SEND; 1607 REQ_SEND;
1515} 1608}
1516 1609
1610UV
1611major (UV dev)
1612 ALIAS:
1613 minor = 1
1614 CODE:
1615 RETVAL = ix ? minor (dev) : major (dev);
1616 OUTPUT:
1617 RETVAL
1618
1619UV
1620makedev (UV maj, UV min)
1621 CODE:
1622 RETVAL = makedev (maj, min);
1623 OUTPUT:
1624 RETVAL
1625
1517void 1626void
1627aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1628 PPCODE:
1629{
1630 dREQ;
1631
1632 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1633 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1634 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1635
1636 REQ_SEND;
1637}
1638
1639void
1640aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1641 PPCODE:
1642{
1643 dREQ;
1644
1645 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1646 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1647
1648 REQ_SEND;
1649}
1650
1651void
1652aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1653 PPCODE:
1654{
1655 dREQ;
1656
1657 req->int2 = mode;
1658 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1659
1660 REQ_SEND;
1661}
1662
1663void
1664aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1665 PPCODE:
1666{
1667 dREQ;
1668
1669 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1670 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1671 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1672
1673 REQ_SEND;
1674}
1675
1676void
1677aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1678 PPCODE:
1679{
1680 dREQ;
1681
1682 req->type = EIO_READDIR;
1683 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1684
1685 if (flags & EIO_READDIR_DENTS)
1686 req->int1 |= EIO_READDIR_CUSTOM2;
1687
1688 req_set_path1 (req, pathname);
1689
1690 REQ_SEND;
1691}
1692
1693void
1694aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1695 PPCODE:
1696{
1697 dREQ;
1698
1699 req->type = EIO_MKDIR;
1700 req->int2 = mode;
1701 req_set_path1 (req, pathname);
1702
1703 REQ_SEND;
1704}
1705
1706void
1518aio_unlink (pathname,callback=&PL_sv_undef) 1707aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1519 SV * pathname
1520 SV * callback
1521 ALIAS: 1708 ALIAS:
1522 aio_unlink = REQ_UNLINK 1709 aio_unlink = EIO_UNLINK
1523 aio_rmdir = REQ_RMDIR 1710 aio_rmdir = EIO_RMDIR
1524 aio_readdir = REQ_READDIR 1711 aio_readdir = EIO_READDIR
1525 PPCODE: 1712 PPCODE:
1526{ 1713{
1527 dREQ; 1714 dREQ;
1528 1715
1529 req->type = ix; 1716 req->type = ix;
1530 req->sv1 = newSVsv (pathname); 1717 req_set_path1 (req, pathname);
1531 req->ptr1 = SvPVbyte_nolen (pathname);
1532 1718
1533 REQ_SEND; 1719 REQ_SEND;
1534} 1720}
1535 1721
1536void 1722void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1723aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1538 SV * oldpath
1539 SV * newpath
1540 SV * callback
1541 ALIAS: 1724 ALIAS:
1542 aio_link = REQ_LINK 1725 aio_link = EIO_LINK
1543 aio_symlink = REQ_SYMLINK 1726 aio_symlink = EIO_SYMLINK
1544 aio_rename = REQ_RENAME 1727 aio_rename = EIO_RENAME
1545 PPCODE: 1728 PPCODE:
1546{ 1729{
1730 eio_wd wd2 = 0;
1547 dREQ; 1731 dREQ;
1548 1732
1549 req->type = ix; 1733 req->type = ix;
1550 req->fh = newSVsv (oldpath); 1734 req_set_path1 (req, oldpath);
1551 req->ptr2 = SvPVbyte_nolen (req->fh); 1735 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1552 req->sv1 = newSVsv (newpath); 1736 req->int3 = (long)wd2;
1553 req->ptr1 = SvPVbyte_nolen (newpath);
1554 1737
1555 REQ_SEND; 1738 REQ_SEND;
1556} 1739}
1557 1740
1558void 1741void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1742aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1560 SV * pathname
1561 SV * callback
1562 UV mode
1563 UV dev
1564 PPCODE: 1743 PPCODE:
1565{ 1744{
1745 eio_wd wd2 = 0;
1566 dREQ; 1746 dREQ;
1567 1747
1568 req->type = REQ_MKNOD; 1748 req->type = EIO_RENAME;
1569 req->sv1 = newSVsv (pathname); 1749 req_set_path1 (req, oldpath);
1570 req->ptr1 = SvPVbyte_nolen (pathname); 1750 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1571 req->mode = (mode_t)mode; 1751 req->int2 = flags;
1572 req->offs = dev; 1752 req->int3 = (long)wd2;
1573 1753
1574 REQ_SEND; 1754 REQ_SEND;
1575} 1755}
1576 1756
1577void 1757void
1578aio_busy (delay,callback=&PL_sv_undef) 1758aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1579 double delay
1580 SV * callback
1581 PPCODE: 1759 PPCODE:
1582{ 1760{
1583 dREQ; 1761 dREQ;
1584 1762
1585 req->type = REQ_BUSY; 1763 req->type = EIO_MKNOD;
1586 req->int1 = delay < 0. ? 0 : delay; 1764 req->int2 = (mode_t)mode;
1587 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1765 req->offs = dev;
1588 1766 req_set_path1 (req, pathname);
1767
1589 REQ_SEND; 1768 REQ_SEND;
1590} 1769}
1591 1770
1592void 1771void
1593aio_group (callback=&PL_sv_undef) 1772aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1594 SV * callback 1773 ALIAS:
1595 PROTOTYPE: ;$ 1774 aio_mtouch = EIO_MTOUCH
1775 aio_msync = EIO_MSYNC
1596 PPCODE: 1776 PPCODE:
1597{ 1777{
1778 STRLEN svlen;
1779 char *svptr = SvPVbyte (data, svlen);
1780 UV len = SvUV (length);
1781
1782 if (flags < 0)
1783 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1784
1785 if (offset < 0)
1786 offset += svlen;
1787
1788 if (offset < 0 || offset > svlen)
1789 croak ("offset outside of scalar");
1790
1791 if (!SvOK (length) || len + offset > svlen)
1792 len = svlen - offset;
1793
1794 {
1795 dREQ;
1796
1797 req->type = ix;
1798 req->sv2 = SvREFCNT_inc (data);
1799 req->ptr2 = (char *)svptr + offset;
1800 req->size = len;
1801 req->int1 = flags;
1802
1803 REQ_SEND;
1804 }
1805}
1806
1807void
1808aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1809 PPCODE:
1810{
1811 STRLEN svlen;
1812 char *svptr = SvPVbyte (data, svlen);
1813 UV len = SvUV (length);
1814
1815 if (offset < 0)
1816 offset += svlen;
1817
1818 if (offset < 0 || offset > svlen)
1819 croak ("offset outside of scalar");
1820
1821 if (!SvOK (length) || len + offset > svlen)
1822 len = svlen - offset;
1823
1824 {
1825 dREQ;
1826
1827 req->type = EIO_MLOCK;
1828 req->sv2 = SvREFCNT_inc (data);
1829 req->ptr2 = (char *)svptr + offset;
1830 req->size = len;
1831
1832 REQ_SEND;
1833 }
1834}
1835
1836void
1837aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1838 PPCODE:
1839{
1840 dREQ;
1841
1842 req->type = EIO_MLOCKALL;
1843 req->int1 = flags;
1844
1845 REQ_SEND;
1846}
1847
1848void
1849aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1850 PPCODE:
1851{
1852 int fd = s_fileno_croak (fh, 0);
1598 dREQ; 1853 dREQ;
1599 1854
1600 req->type = REQ_GROUP; 1855 req->type = EIO_CUSTOM;
1856 req->sv1 = newSVsv (fh);
1857 req->int1 = fd;
1601 1858
1602 req_send (req); 1859 req->feed = fiemap;
1603 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1860#if HAVE_FIEMAP
1604} 1861 /* keep our fingers crossed that the next two types are 64 bit */
1862 req->offs = start;
1863 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1864 req->int2 = flags;
1865 req->int3 = SvOK (count) ? SvIV (count) : -1;
1866#endif
1605 1867
1868 REQ_SEND;
1869}
1870
1606void 1871void
1607aio_nop (callback=&PL_sv_undef) 1872aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1608 SV * callback 1873 PPCODE:
1874{
1875 char *svptr = 0;
1876
1877 sv_clear_foreign (data);
1878
1879 if (length) /* known length, directly read into scalar */
1880 {
1881 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1882 svptr = sv_grow (data, length + 1);
1883 else if (SvCUR (data) < length)
1884 croak ("length outside of scalar, and cannot grow");
1885 else
1886 svptr = SvPVbyte_nolen (data);
1887 }
1888
1889 {
1890 dREQ;
1891
1892 req->type = EIO_SLURP;
1893 req_set_path1 (req, pathname);
1894 req->offs = offset;
1895 req->size = length;
1896 req->sv2 = SvREFCNT_inc (data);
1897 req->ptr2 = svptr;
1898
1899 if (!SvREADONLY (data))
1900 {
1901 SvREADONLY_on (data);
1902 req->flags |= FLAG_SV2_RO_OFF;
1903 }
1904
1905 REQ_SEND;
1906 }
1907}
1908
1909void
1910aio_busy (double delay, SV *callback = &PL_sv_undef)
1609 PPCODE: 1911 PPCODE:
1610{ 1912{
1611 dREQ; 1913 dREQ;
1612 1914
1613 req->type = REQ_NOP; 1915 req->type = EIO_BUSY;
1916 req->nv1 = delay < 0. ? 0. : delay;
1614 1917
1615 REQ_SEND; 1918 REQ_SEND;
1616} 1919}
1617 1920
1921void
1922aio_group (SV *callback = &PL_sv_undef)
1923 PPCODE:
1924{
1925 dREQ;
1926
1927 req->type = EIO_GROUP;
1928
1929 PUTBACK;
1930 req_submit (req);
1931 SPAGAIN;
1932
1933 XPUSHs (req_sv (req, aio_grp_stash));
1934}
1935
1936void
1937aio_nop (SV *callback = &PL_sv_undef)
1938 ALIAS:
1939 aio_nop = EIO_NOP
1940 aio_sync = EIO_SYNC
1941 PPCODE:
1942{
1943 dREQ;
1944
1945 req->type = ix;
1946
1947 REQ_SEND;
1948}
1949
1618int 1950int
1619aioreq_pri (int pri = 0) 1951aioreq_pri (int pri = NO_INIT)
1620 PROTOTYPE: ;$
1621 CODE: 1952 CODE:
1622 RETVAL = next_pri - PRI_BIAS; 1953 RETVAL = next_pri;
1623 if (items > 0) 1954 if (items > 0)
1624 { 1955 {
1625 if (pri < PRI_MIN) pri = PRI_MIN; 1956 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1626 if (pri > PRI_MAX) pri = PRI_MAX; 1957 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1627 next_pri = pri + PRI_BIAS; 1958 next_pri = pri;
1628 } 1959 }
1629 OUTPUT: 1960 OUTPUT:
1630 RETVAL 1961 RETVAL
1631 1962
1632void 1963void
1633aioreq_nice (int nice = 0) 1964aioreq_nice (int nice = 0)
1634 CODE: 1965 CODE:
1635 nice = next_pri - nice; 1966 nice = next_pri - nice;
1636 if (nice < PRI_MIN) nice = PRI_MIN; 1967 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1637 if (nice > PRI_MAX) nice = PRI_MAX; 1968 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1638 next_pri = nice + PRI_BIAS; 1969 next_pri = nice;
1639 1970
1640void 1971void
1641flush () 1972flush ()
1642 PROTOTYPE:
1643 CODE: 1973 CODE:
1644 while (nreqs) 1974 while (eio_nreqs ())
1645 { 1975 {
1646 poll_wait (); 1976 poll_wait ();
1647 poll_cb (0); 1977 poll_cb ();
1648 } 1978 }
1649 1979
1650void 1980int
1651poll() 1981poll ()
1652 PROTOTYPE:
1653 CODE: 1982 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait (); 1983 poll_wait ();
1657 poll_cb (0); 1984 RETVAL = poll_cb ();
1658 }
1659
1660int
1661poll_fileno()
1662 PROTOTYPE:
1663 CODE:
1664 RETVAL = respipe [0];
1665 OUTPUT: 1985 OUTPUT:
1666 RETVAL 1986 RETVAL
1667 1987
1668int 1988int
1989poll_fileno ()
1990 CODE:
1991 RETVAL = s_epipe_fd (&respipe);
1992 OUTPUT:
1993 RETVAL
1994
1995int
1669poll_cb(...) 1996poll_cb (...)
1670 PROTOTYPE: 1997 PROTOTYPE:
1671 CODE: 1998 CODE:
1672 RETVAL = poll_cb (); 1999 RETVAL = poll_cb ();
1673 OUTPUT: 2000 OUTPUT:
1674 RETVAL 2001 RETVAL
1675 2002
1676void 2003void
1677poll_wait() 2004poll_wait ()
1678 PROTOTYPE:
1679 CODE: 2005 CODE:
1680 if (nreqs)
1681 poll_wait (); 2006 poll_wait ();
1682 2007
1683int 2008int
1684nreqs() 2009nreqs ()
1685 PROTOTYPE:
1686 CODE: 2010 CODE:
1687 RETVAL = nreqs; 2011 RETVAL = eio_nreqs ();
1688 OUTPUT: 2012 OUTPUT:
1689 RETVAL 2013 RETVAL
1690 2014
1691int 2015int
1692nready() 2016nready ()
1693 PROTOTYPE:
1694 CODE: 2017 CODE:
1695 RETVAL = get_nready (); 2018 RETVAL = eio_nready ();
1696 OUTPUT: 2019 OUTPUT:
1697 RETVAL 2020 RETVAL
1698 2021
1699int 2022int
1700npending() 2023npending ()
1701 PROTOTYPE:
1702 CODE: 2024 CODE:
1703 RETVAL = get_npending (); 2025 RETVAL = eio_npending ();
1704 OUTPUT: 2026 OUTPUT:
1705 RETVAL 2027 RETVAL
1706 2028
1707int 2029int
1708nthreads() 2030nthreads ()
1709 PROTOTYPE:
1710 CODE: 2031 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2032 RETVAL = eio_nthreads ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 2033 OUTPUT:
1715 RETVAL 2034 RETVAL
1716 2035
2036int
2037fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2038 CODE:
2039 RETVAL = posix_fadvise (fh, offset, length, advice);
2040 OUTPUT:
2041 RETVAL
2042
2043IV
2044sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2045 CODE:
2046 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2047 OUTPUT:
2048 RETVAL
2049
2050void
2051mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2052 PPCODE:
2053 sv_clear_foreign (scalar);
2054{
2055 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2056 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2057 if (addr == (void *)-1)
2058 XSRETURN_NO;
2059
2060 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2061
2062 if (!(prot & PROT_WRITE))
2063 SvREADONLY_on (scalar);
2064
2065 XSRETURN_YES;
2066}
2067
2068void
2069munmap (SV *scalar)
2070 CODE:
2071 sv_clear_foreign (scalar);
2072
2073SV *
2074mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
2075 CODE:
2076{
2077 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2078 void *new;
2079
2080 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2081 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2082
2083 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2084
2085 RETVAL = &PL_sv_no;
2086
2087 if (new != (void *)-1)
2088 {
2089 RETVAL = new == (void *)mg->mg_ptr
2090 ? newSVpvn ("0 but true", 10)
2091 : &PL_sv_yes;
2092
2093 mg->mg_ptr = (char *)new;
2094 mg->mg_obj = (SV *)new_length;
2095
2096 SvPVX (scalar) = mg->mg_ptr;
2097 SvCUR_set (scalar, new_length);
2098 }
2099}
2100 OUTPUT:
2101 RETVAL
2102
2103int
2104madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2105 ALIAS:
2106 mprotect = 1
2107 CODE:
2108{
2109 STRLEN svlen;
2110 void *addr = SvPVbyte (scalar, svlen);
2111 STRLEN len = SvUV (length);
2112
2113 if (offset < 0)
2114 offset += svlen;
2115
2116 if (offset < 0 || offset > svlen)
2117 croak ("offset outside of scalar");
2118
2119 if (!SvOK (length) || len + offset > svlen)
2120 len = svlen - offset;
2121
2122 addr = (void *)(((intptr_t)addr) + offset);
2123 eio_page_align (&addr, &len);
2124
2125 switch (ix)
2126 {
2127 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2128 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2129 }
2130}
2131 OUTPUT:
2132 RETVAL
2133
2134int
2135munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2136 CODE:
2137{
2138 STRLEN svlen;
2139 void *addr = SvPVbyte (scalar, svlen);
2140 size_t len = SvUV (length);
2141
2142 if (offset < 0)
2143 offset += svlen;
2144
2145 if (offset < 0 || offset > svlen)
2146 croak ("offset outside of scalar");
2147
2148 if (!SvOK (length) || len + offset > svlen)
2149 len = svlen - offset;
2150
2151 addr = (void *)(((intptr_t)addr) + offset);
2152 eio_page_align (&addr, &len);
2153#if _POSIX_MEMLOCK_RANGE
2154 RETVAL = munlock (addr, len);
2155#else
2156 RETVAL = EIO_ENOSYS ();
2157#endif
2158}
2159 OUTPUT:
2160 RETVAL
2161
2162int
2163munlockall ()
2164 CODE:
2165#if _POSIX_MEMLOCK
2166 munlockall ();
2167#else
2168 RETVAL = EIO_ENOSYS ();
2169#endif
2170 OUTPUT:
2171 RETVAL
2172
2173int
2174splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2175 CODE:
2176{
2177#if HAVE_LINUX_SPLICE
2178 loff_t off_in_, off_out_;
2179 RETVAL = splice (
2180 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2181 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2182 length, flags
2183 );
2184#else
2185 RETVAL = EIO_ENOSYS ();
2186#endif
2187}
2188 OUTPUT:
2189 RETVAL
2190
2191int
2192tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2193 CODE:
2194#if HAVE_LINUX_SPLICE
2195 RETVAL = tee (rfh, wfh, length, flags);
2196#else
2197 RETVAL = EIO_ENOSYS ();
2198#endif
2199 OUTPUT:
2200 RETVAL
2201
2202int
2203pipesize (aio_rfd rfh, int new_size = -1)
2204 PROTOTYPE: $;$
2205 CODE:
2206#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2207 if (new_size >= 0)
2208 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2209 else
2210 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2211#else
2212 errno = ENOSYS;
2213 RETVAL = -1;
2214#endif
2215 OUTPUT:
2216 RETVAL
2217
2218void
2219pipe2 (int flags = 0)
2220 PROTOTYPE: ;$
2221 PPCODE:
2222{
2223 int fd[2];
2224 int res;
2225
2226 if (flags)
2227#if HAVE_PIPE2
2228 res = pipe2 (fd, flags);
2229#else
2230 res = (errno = ENOSYS, -1);
2231#endif
2232 else
2233 res = pipe (fd);
2234
2235 if (!res)
2236 {
2237 EXTEND (SP, 2);
2238 PUSHs (newmortalFH (fd[0], O_RDONLY));
2239 PUSHs (newmortalFH (fd[1], O_WRONLY));
2240 }
2241}
2242
2243void
2244eventfd (unsigned int initval = 0, int flags = 0)
2245 PPCODE:
2246{
2247 int fd;
2248#if HAVE_EVENTFD
2249 fd = eventfd (initval, flags);
2250#else
2251 fd = (errno = ENOSYS, -1);
2252#endif
2253
2254 XPUSHs (newmortalFH (fd, O_RDWR));
2255}
2256
2257void
2258timerfd_create (int clockid, int flags = 0)
2259 PPCODE:
2260{
2261 int fd;
2262#if HAVE_TIMERFD
2263 fd = timerfd_create (clockid, flags);
2264#else
2265 fd = (errno = ENOSYS, -1);
2266#endif
2267
2268 XPUSHs (newmortalFH (fd, O_RDWR));
2269}
2270
2271void
2272timerfd_settime (SV *fh, int flags, NV interval, NV value)
2273 PPCODE:
2274{
2275 int fd = s_fileno_croak (fh, 0);
2276#if HAVE_TIMERFD
2277 int res;
2278 struct itimerspec its, ots;
2279
2280 ts_set (&its.it_interval, interval);
2281 ts_set (&its.it_value , value);
2282 res = timerfd_settime (fd, flags, &its, &ots);
2283
2284 if (!res)
2285 {
2286 EXTEND (SP, 2);
2287 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2288 PUSHs (newSVnv (ts_get (&ots.it_value)));
2289 }
2290#else
2291 errno = ENOSYS;
2292#endif
2293}
2294
2295void
2296timerfd_gettime (SV *fh)
2297 PPCODE:
2298{
2299 int fd = s_fileno_croak (fh, 0);
2300#if HAVE_TIMERFD
2301 int res;
2302 struct itimerspec ots;
2303 res = timerfd_gettime (fd, &ots);
2304
2305 if (!res)
2306 {
2307 EXTEND (SP, 2);
2308 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2309 PUSHs (newSVnv (ts_get (&ots.it_value)));
2310 }
2311#else
2312 errno = ENOSYS;
2313#endif
2314}
2315
2316UV
2317get_fdlimit ()
2318 CODE:
2319#if HAVE_RLIMITS
2320 struct rlimit rl;
2321 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2322 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2323#endif
2324 XSRETURN_UNDEF;
2325 OUTPUT:
2326 RETVAL
2327
2328void
2329min_fdlimit (UV limit = 0x7fffffffU)
2330 CODE:
2331{
2332#if HAVE_RLIMITS
2333 struct rlimit rl;
2334 rlim_t orig_rlim_max;
2335 UV bit;
2336
2337 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2338 goto fail;
2339
2340 if (rl.rlim_cur == RLIM_INFINITY)
2341 XSRETURN_YES;
2342
2343 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2344
2345 if (rl.rlim_cur < limit)
2346 {
2347 rl.rlim_cur = limit;
2348
2349 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2350 rl.rlim_max = rl.rlim_cur;
2351 }
2352
2353 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2354 XSRETURN_YES;
2355
2356 if (errno == EPERM)
2357 {
2358 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2359 /* our limit overflows a system-wide limit */
2360 /* try an adaptive algorithm, but do not lower the hardlimit */
2361 rl.rlim_max = 0;
2362 for (bit = 0x40000000U; bit; bit >>= 1)
2363 {
2364 rl.rlim_max |= bit;
2365 rl.rlim_cur = rl.rlim_max;
2366
2367 /* nevr decrease the hard limit */
2368 if (rl.rlim_max < orig_rlim_max)
2369 break;
2370
2371 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2372 rl.rlim_max &= ~bit; /* too high, remove bit again */
2373 }
2374
2375 /* now, raise the soft limit to the max permitted */
2376 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2377 {
2378 rl.rlim_cur = rl.rlim_max;
2379 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2380 errno = EPERM;
2381 }
2382 }
2383#endif
2384 fail:
2385 XSRETURN_UNDEF;
2386}
2387
2388void _on_next_submit (SV *cb)
2389 CODE:
2390 SvREFCNT_dec (on_next_submit);
2391 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2392
1717PROTOTYPES: DISABLE 2393PROTOTYPES: DISABLE
2394
2395MODULE = IO::AIO PACKAGE = IO::AIO::WD
2396
2397BOOT:
2398{
2399 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2400 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2401}
2402
2403void
2404DESTROY (SV *self)
2405 CODE:
2406{
2407 aio_wd wd = SvAIO_WD (self);
2408#if HAVE_AT
2409 {
2410 SV *callback = &PL_sv_undef;
2411 dREQ; /* clobbers next_pri :/ */
2412 next_pri = req->pri; /* restore next_pri */
2413 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2414 req->type = EIO_WD_CLOSE;
2415 req->wd = wd;
2416 REQ_SEND;
2417 }
2418#else
2419 eio_wd_close_sync (wd);
2420#endif
2421}
1718 2422
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2423MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 2424
1721void 2425void
1722cancel (aio_req_ornot req) 2426cancel (aio_req_ornot req)
1723 CODE: 2427 CODE:
1724 req_cancel (req); 2428 eio_cancel (req);
1725 2429
1726void 2430void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2431cb (aio_req_ornot req, SV *callback = NO_INIT)
1728 CODE: 2432 PPCODE:
2433{
2434 if (GIMME_V != G_VOID)
2435 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2436
2437 if (items > 1)
2438 {
2439 SV *cb_cv = get_cb (callback);
2440
1729 SvREFCNT_dec (req->callback); 2441 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 2442 req->callback = SvREFCNT_inc (cb_cv);
2443 }
2444}
1731 2445
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2446MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 2447
1734void 2448void
1735add (aio_req grp, ...) 2449add (aio_req grp, ...)
1736 PPCODE: 2450 PPCODE:
1737{ 2451{
1738 int i; 2452 int i;
1739 aio_req req;
1740 2453
1741 if (grp->int1 == 2) 2454 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2455 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 2456
1744 for (i = 1; i < items; ++i ) 2457 for (i = 1; i < items; ++i )
1745 { 2458 {
2459 aio_req req;
2460
1746 if (GIMME_V != G_VOID) 2461 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2462 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 2463
1749 req = SvAIO_REQ (ST (i)); 2464 req = SvAIO_REQ (ST (i));
1750 2465
1751 if (req) 2466 if (req)
1752 { 2467 eio_grp_add (grp, req);
1753 ++grp->size;
1754 req->grp = grp;
1755
1756 req->grp_prev = 0;
1757 req->grp_next = grp->grp_first;
1758
1759 if (grp->grp_first)
1760 grp->grp_first->grp_prev = req;
1761
1762 grp->grp_first = req;
1763 }
1764 } 2468 }
1765} 2469}
1766 2470
1767void 2471void
1768cancel_subs (aio_req_ornot req) 2472cancel_subs (aio_req_ornot req)
… …
1777 AV *av; 2481 AV *av;
1778 2482
1779 grp->errorno = errno; 2483 grp->errorno = errno;
1780 2484
1781 av = newAV (); 2485 av = newAV ();
2486 av_extend (av, items - 1);
1782 2487
1783 for (i = 1; i < items; ++i ) 2488 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 2489 av_push (av, newSVsv (ST (i)));
1785 2490
1786 SvREFCNT_dec (grp->sv1); 2491 SvREFCNT_dec (grp->sv1);
… …
1793 grp->errorno = errorno; 2498 grp->errorno = errorno;
1794 2499
1795void 2500void
1796limit (aio_req grp, int limit) 2501limit (aio_req grp, int limit)
1797 CODE: 2502 CODE:
1798 grp->int2 = limit; 2503 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 2504
1801void 2505void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 2506feed (aio_req grp, SV *callback = &PL_sv_undef)
1803 CODE: 2507 CODE:
1804{ 2508{
1805 SvREFCNT_dec (grp->sv2); 2509 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 2510 grp->sv2 = newSVsv (callback);
2511 grp->feed = aio_grp_feed;
1807 2512
1808 if (grp->int2 <= 0) 2513 if (grp->int2 <= 0)
1809 grp->int2 = 2; 2514 grp->int2 = 2;
1810 2515
1811 aio_grp_feed (grp); 2516 eio_grp_limit (grp, grp->int2);
1812} 2517}
1813 2518

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